CN101699593B - Switch component - Google Patents
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- CN101699593B CN101699593B CN2009102093014A CN200910209301A CN101699593B CN 101699593 B CN101699593 B CN 101699593B CN 2009102093014 A CN2009102093014 A CN 2009102093014A CN 200910209301 A CN200910209301 A CN 200910209301A CN 101699593 B CN101699593 B CN 101699593B
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- contacting device
- movable contact
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Abstract
The invention relates to a switch and is used to improve the structure at the contact part used for turning on and off in a switch to reduce current in each contact and total contact resistance. The problem of poor contact at the pin joint position of a pin joint contact rod and a supporting part in the conventional switch is solved by arranging an additional elastic metal plate on the pin joint contact rod. Due to the contact part arranged on a rotary contact device at the position of a forward/reverse conversion mechanism, the total contact area is increased, current in each contact is further reduced, and the total contact resistance and heat generation between the rotary contact device at the position of the forward/reverse conversion mechanism and an internal input and an external output are reduced.
Description
Patent application of the present invention is that name is called " switch module ", application number is: 200610002402.0, the applying date is the dividing an application of application for a patent for invention on January 27th, 2006.
Technical field
The present invention relates to a kind of electric switching assembly.Also relate to a kind of high power dc switch, relate more particularly to a kind of trigger switch that is used for the triggering control of power tool.
Background technology
In the art, the high power DC switch of known a kind of Marquardt (trade mark) 2711.5507 types, its power are 18V direct current 25A.US6717080B1 discloses a kind of trigger switch assembly that is used to have the electric tool of motor.US6741051B2 discloses a kind of triggering controller that is used to comprise the electric tool of motor.US6104105 also discloses a kind of electric switch that is used to open or close the instrument that has motor.US6794594 discloses a kind of trigger switch assembly that is used to control electric tool.The applicant oneself also sold and was used to control the switch module of electric tool and other various electric switches.All these known switches all belong to prior art, the improvement that the present invention makes just on the basis of known switch.
In existing switch, the structure of the contact position that is used for closed and disconnected in the switch often makes the contact of contact position good inadequately, thereby produces bigger contact resistance in the contact position, causes low or other the problem of the bearing capacity of Sheng Re and switch.
For example; Switch above-mentioned some utilize pivot contact lever mechanism to realize switching on and off of electric current; One end of pivot contact lever is connected with the support portion pivotly, and the support portion is connected with the input of electric current, is connected with fixing contact contact on the output of circuit; The other end of pivot contact lever can contact with the fixing contact that contacts through the pivot of this pivot contact lever, thereby circuit is connected.In this switch, when the pivot contact lever is connected circuit, electric current flow through pivotal point, pivot contact lever and the fixing contact that contacts of pivot contact lever and support portion.But the pivot contact lever possibly not be fine with support portion contacting between pivotal point.This can produce big contact resistance and cause heating and " INT " problem.So-called " INT " problem refers under common condition of work or environment owing to can produce spark at the contact point place in the instability of the electric current at contact point place, and spark may burn or melt the pivot contact plate.For high-power switchgear, these problems can be more serious.
Also there is the defective of second aspect in some traditional switch.Some traditional switch is provided with forwards/reverse switching mechanism, the polarity that this mechanism can the conversion output voltage.In this switching mechanism place, two conversion contact plates are arranged, these two conversion contact plates make two inner outputs be connected with two outside outputs simultaneously, can control the polarity of output like this.In each inner output, only be provided with an independent arcuation convex surface part, contact for line between the arcuation convex surface part makes the conversion contact plate and export inside.Reduce contact loss like this.But a convex surface part deficiency that is used to contact only is set in the output of inside so that living heat minimizes.
Summary of the invention
General purpose of the present invention is the contact structures or the parts that are used to break off with closed of switch are improved, thereby reduces the electric current at each contact point place that flows through, and reduces total contact resistance.
For example, an object of the present invention is to solve the problem of loose contact of the pivot junction of pivot contact lever and support portion in traditional switch.
Another object of the present invention is further to be reduced in the inside output and the give birth to heat of outside output with movable conversion contact component contact position of forwards/reverse switching mechanism place.
The object of the invention can be realized through following technical scheme and embodiment preferred thereof:
A kind of switch module comprises:
Housing;
Input part, it is fixed with respect to described housing, and the one of which end is used for being electrically connected with the positive pole of power supply and of negative pole;
Efferent, it is fixed with respect to described housing;
At least two sliding contact parts, it is used to receive the electric current from said input part;
Straight-through fixed contact; It is fixed with respect to said housing, and is used for receiving from the electric current of said input part and will received electric current flowing to the efferent of this switch module or the power consumption equipment that will be controlled by this switch module through said at least two sliding contact parts;
The speed governing fixed contact; It is fixed with respect to said housing; Its electric current that is used to receive from said at least two sliding contact parts also flows to the electronic circuit with speed-regulating function with received electric current, and said electronic circuit is electrically connected with said straight-through fixed contact;
Push rod, it is maintained on the said housing, and can reciprocatingly slide with respect to said housing;
Said at least two sliding contact parts are maintained on the said push rod; And can, said push rod reciprocatingly slide with respect to said housing when reciprocatingly sliding in a stroke with said push rod; The position of described input part, speed governing fixed contact and said straight-through fixed contact and said push rod and said sliding contact parts is arranged so that; In the whole forming process that reciprocatingly slides of said push rod; One end of said sliding contact parts keeps in touch with said input part all the time and conducts electricity; Anterior LAP in whole strokes that said push rod inwardly slides, the other end of said sliding contact parts contacts with said speed governing fixed contact and conducts electricity, the rear portion LAP in whole strokes that said push rod inwardly slides; The other end of said sliding contact parts and said speed governing fixed contact electricity breaks off, and contacts with said straight-through fixed contact and conduct electricity.
The preferred version of this scheme is following:
Each end of said sliding contact parts has at least one contacting surface; Said input part, said speed governing fixed contact and said straight-through fixed contact all have the plane; In the course of the work, said sliding contact parts and contacting of said input part, said speed governing fixed contact and said straight-through fixed contact are respectively described contacting surfaces and the contacting of each corresponding said plane.
Preferably; Comprise that also at least one pivot moves contact component; The moving contact component of said pivot has electric current input side and electric current outlet side; Said electric current input side keeps contacting with said input part and conducting electricity, and the moving contact component of said pivot can be around the contact site pivot that contacts with the moving contact component of this pivot of said input part, and described push rod is provided with cam; Be in the process of said anterior LAP at said push rod; Described cam keeps being pressed in said pivot and moves pressing in the portion of contact component, and the state that the electric current outlet side maintenance that makes said pivot move contact component separates with said straight-through fixed contact is in the process of said rear portion LAP at said push rod; The part that presses of the moving contact component of described cam and said pivot leaves, and the electric current outlet side that makes said pivot move contact component contacts with said straight-through fixed contact and conducts electricity.
Preferably; Be fixed with elastic sheet metal on the moving contact component of said pivot, thereby a partial fixing of said elastic sheet metal elasticity through said elastic sheet metal on the moving contact component of said pivot abuts against on the described input part to realize the auxilliary conduction that adds between moving contact component of said pivot and the said input part another part of this sheet metal.
Preferably; Described input part is provided with concave structure; Described contact site is located on the described concave structure; Described elastic sheet metal is located at the upside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the top of upper end of described concave structure or a side of its upper end.
Preferably; Described input part is provided with concave structure; Described contact site is located on the described concave structure; Described elastic sheet metal is located at the downside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the part below the lower surface of the moving contact component of the said pivot of being positioned at of described input part.
Preferably, each end of said sliding contact parts has at least two contacting surfaces.
Preferably; All be connected with spring on the moving contact component of each pivot; One end of said spring is connected on the moving contact component of said pivot, and the other end is fixed with respect to housing, and said spring applies active force to the moving contact component of said pivot; When the moving contact component of described cam and said pivot press part from the time, the electric current outlet side of the moving contact component of said pivot and contacting of said straight-through fixed contact are realizations under the effect of the active force of said spring.
A kind of switch module comprises:
Housing;
Input part, it is fixed with respect to said housing, and it is used for being electrically connected with the positive pole of power supply and of negative pole;
Efferent, it is fixed with respect to said housing;
The speed governing fixed contact, it also can receive the electric current from said input part through at least one sliding contact parts with respect to said housing is fixing;
Electronic circuit with speed-regulating function, its accept from the electric current of said speed governing fixed contact and with the electric current that receives flow to said switch module efferent or will be by the power consumption equipment of this switch module control;
At least two moving contact components of pivot; The moving contact component of said pivot has electric current input side and electric current outlet side; Said electric current input side keeps contacting with said input part and conducting electricity, and the moving contact component of said pivot can pivot around the contact site that contacts with the moving contact component of this pivot of said input part;
Straight-through fixed contact, its fix with respect to said housing and be used for through the moving contact component of said at least two pivots receive from the electric current of said input part and with the electric current that receives flow to said switch module efferent or will be by the power consumption equipment of this switch module control;
Push rod, it is maintained on the said housing, and can reciprocatingly slide with respect to said housing, and described push rod is provided with cam;
Said at least one sliding contact parts is maintained on the said push rod, and can when said push rod reciprocatingly slides in a stroke, reciprocatingly slide with respect to said housing with said push rod;
The position of described input part, speed governing fixed contact, said straight-through fixed contact, said pivot moving contact component, said cam and said push rod and said sliding contact parts is arranged so that; In the whole forming process that reciprocatingly slides of said push rod; One end of said sliding contact parts keeps in touch with said input part all the time and conducts electricity; Anterior LAP in whole strokes that said push rod inwardly slides; The other end of said sliding contact parts contacts with said speed governing fixed contact and conducts electricity; Be in the process of said anterior LAP at said push rod; Described cam keeps being pressed in said pivot and moves pressing in the portion of contact component, and the state that the electric current outlet side maintenance that makes said pivot move contact component separates with said straight-through fixed contact, the rear portion LAP in whole strokes that said push rod inwardly slides; The part that presses of the moving contact component of described cam and said pivot leaves, and the electric current outlet side that makes said pivot move contact component contacts with said straight-through fixed contact and conducts electricity.
The preferred version of scheme 2 is following:
Preferably; Be fixed with elastic sheet metal on the moving contact component of said pivot, thereby a partial fixing of said elastic sheet metal elasticity through said elastic sheet metal on the moving contact component of said pivot abuts against on the described input part to realize the auxilliary conduction that adds between moving contact component of said pivot and the said input part another part of this sheet metal.
Preferably; Described input part is provided with concave structure; Described contact site is located on the described concave structure; Described elastic sheet metal is located at the upside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the top of upper end of described concave structure or a side of its upper end.
Preferably; Described input part is provided with concave structure; Described contact site is located on the described concave structure; Described elastic sheet metal is located at the downside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the part below the lower surface of the moving contact component of the said pivot of being positioned at of described input part.
Preferably, described elastic sheet metal is an elastic copper sheet.
Preferably; All be connected with spring on the moving contact component of each pivot; One end of said spring is connected on the moving contact component of said pivot, and the other end is fixed with respect to housing, and said spring applies active force to the moving contact component of said pivot; When the moving contact component of described cam and said pivot press part from the time, the electric current outlet side of the moving contact component of said pivot and contacting of said straight-through fixed contact are realizations under the effect of the active force of said spring.
A kind of switch module comprises:
Housing;
First input part, it is used for being electrically connected with the positive pole of power supply and of negative pole;
Second input part, it is fixed with respect to described housing, and its input is used for being electrically connected with another of the positive pole of power supply and negative pole;
The first inner efferent, it is fixed with respect to described housing, and it is connected with said first input part, and has the first inner output switching-over fixed contact on it;
The second inner efferent, it is fixed with respect to described housing, its input can with said second input part electric connection or the disconnection, its output has the second inner output switching-over fixed contact;
The first outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the first outside output switching-over fixed contact;
The second outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the second outside output switching-over fixed contact; The first inner output switching-over fixed contact, the said second inner output switching-over fixed contact, the said first outside output switching-over fixed contact and the said second outside output switching-over fixed contact all have fixedly contact-making surface;
The switching-over tumbler; Which is provided with first movable contacting device and second movable contacting device; The input and the output of each in described first movable contacting device and said second movable contacting device respectively comprise at least two movable contact sites; All has the movable contact-making surface that can contact on each movable contact site with said fixedly contact-making surface; Said switching-over tumbler can rotate between its primary importance and the second place; Consequently; First movable contacting device can move between its primary importance and the second place with respect to said housing; Primary importance at said first movable contacting device; At least two movable contact-making surfaces of the input of said first movable contacting device contact with the fixedly contact-making surface of the said first inner output switching-over fixed contact; Said at least two movable contact-making surfaces of the output of said first movable contacting device contact with the fixedly contact-making surface of the said second outside output switching-over fixed contact; The second place at said first movable contacting device; The said movable contact-making surface of the input of said first movable contacting device still contacts with the fixedly contact-making surface of the said first inner output switching-over fixed contact, and said at least two movable contact-making surfaces of the output of said first movable contacting device contact with the fixedly contact-making surface of the said first outside output switching-over fixed contact, and second movable contacting device can move between its primary importance and the second place with respect to said housing; Primary importance at said second movable contacting device; Said at least two movable contact-making surfaces of the input of said second movable contacting device contact with the fixedly contact-making surface of the said second inner output switching-over fixed contact, and said at least two movable contact-making surfaces of the output of said second movable contacting device contact with the fixedly contact-making surface of the said first outside output switching-over fixed contact, in the second place of said second movable contacting device; Said at least two movable contact-making surfaces of the input of said second movable contacting device still contact with the fixedly contact-making surface of the said second inner output switching-over fixed contact, and said at least two movable contact-making surfaces of the output of said second movable contacting device contact with the fixedly contact-making surface of the said second outside output switching-over fixed contact.
The preferred version of scheme 3 is following:
Preferably, described each movable contacting device comprises at least two movable contact components that are fixed together and can move together, and said movable contact site is located on the said movable contact component, and at least two said movable contact sites are arranged on each movable contact component.
Preferably, the movable contact-making surface of said at least two movable contact sites all is a cambered surface.
Preferably; Said at least two movable contact components comprise that at least one first movable contact component and at least one are than the said first movable contact component more resilient second movable contact component; Movable contact site on the said first movable contact component stretches out on the body of the said first movable contact component; Movable contact site on the said second movable contact component stretches out on the body of the said second movable contact component; The length that the length that movable contact site on the said second movable contact component stretches out is stretched out greater than the movable contact site on the said first movable contact component; With the movable contact-making surface that guarantees the movable contact site on the first movable contact component and corresponding said fixedly contact-making surface stably rigidity contact movable contact-making surface on the movable contact contact site on the said second movable contact component and said fixedly contact-making surface Elastic Contact.
Preferably, said fixedly contact-making surface all is the plane.
Preferably, the thickness of the said first movable contact component is greater than the thickness of the said second movable contact component.
Preferably, the said first movable contact component and the said second movable contact component all are made of copper.
A kind of switch module comprises:
Housing;
First input part, it is used for being electrically connected with the positive pole of power supply and of negative pole;
Second input part, it is fixed with respect to described housing, and the one of which end is used for being electrically connected with another of the positive pole of power supply and negative pole;
The first inner efferent, it is fixed with respect to described housing, and it is connected with said first input part, and has the first inner output switching-over fixed contact;
The second inner efferent, it is fixed with respect to described housing, its input can with said second input part electric connection or the disconnection, its output has the second inner output switching-over fixed contact;
The first outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the first outside output switching-over fixed contact;
The second outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the second outside output switching-over fixed contact; The first inner output switching-over fixed contact and the said second inner output switching-over fixed contact respectively have two branches and form U-shaped; The said first outside output switching-over fixed contact and the said second outside output switching-over fixed contact respectively have two branches, and a fixedly contact-making surface is respectively arranged in each branch of said each fixed contact;
The switching-over tumbler; Which is provided with first movable contacting device, second movable contacting device, the 3rd movable contacting device and the 4th movable contacting device; The input of described each movable contacting device and output comprise at least one movable contact site respectively; All has the movable contact-making surface that can contact on each movable contact site with said fixedly contact-making surface; Said switching-over tumbler can rotate between its primary importance and the second place; Consequently; First movable contacting device and said the 3rd movable contacting device can move between its primary importance and the second place with respect to said housing; Primary importance at said first movable contacting device and said the 3rd movable contacting device; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the input of said first movable contacting device and the input of the 3rd movable contacting device respectively with the U type branch of the said first inner output switching-over fixed contact on two fixedly contact-making surface contact; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the output of said first movable contacting device and the output of said the 3rd movable contacting device respectively with two branches of the said second outside output switching-over fixed contact on said fixedly contact-making surface contact; In said first movable contacting device and the said the 3rd movable second place that contacts; The said movable contact-making surface of the said movable contact-making surface of the input of said first movable contacting device and the input of said the 3rd movable contacting device still respectively with two branches of the said first inner output switching-over fixed contact of U-shaped on fixedly contact-making surface contact; The said movable contact-making surface of said at least one the movable contact-making surface of the output of said first movable contacting device and the input of said the 3rd movable contacting device respectively with two branches of the said first outside output switching-over fixed contact on fixedly contact-making surface contact; And the second and the 4th movable contacting device can move between its primary importance and the second place with respect to said housing; Said second and the primary importance of the 4th movable contacting device; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the input of said second movable contacting device and the input of said the 4th movable contacting device respectively with two branches of the said second inner output switching-over fixed contact of U-shaped on said fixedly contact-making surface contact; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the output of said second movable contacting device and the output of said the 4th movable contacting device respectively with two branches of the said first outside output switching-over fixed contact on said fixedly contact-making surface contact; Said second and the second place of the 4th movable contacting device; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the input of said second movable contacting device and the input of said the 4th movable contacting device still respectively with two branches of the said second inner output switching-over fixed contact of U-shaped on fixedly contact-making surface contact, said at least one movable contact-making surface of said at least one the movable contact-making surface of the output of said second movable contacting device and the output of said the 4th movable contacting device contacts with the said second outside fixedly contact-making surface of exporting the fixed contact that commutates.
The preferred version of scheme 4 is following;
Preferably, described at least one movable contact site is at least two movable contact sites.
Preferably; Described each movable contacting device all comprises at least two movable contact components that are fixed together and can move together; Said movable contact site is located on the said movable contact component, and at least two said movable contact sites are arranged on each movable contact component.
Preferably, the movable contact-making surface of said at least one movable contact site is a cambered surface.
Preferably; Said at least two movable contact components comprise at least one first movable contact component and at least one second movable contact component bigger than the first movable contact component elasticity; Movable contact site on the said first movable contact component stretches out on the body of the said first movable contact component; Movable contact site on the said second movable contact component stretches out on the body of the said second movable contact component; The length that the length that movable contact site on the said second movable contact component stretches out is stretched out greater than the movable contact site on the said first movable contact component; With the movable contact-making surface that guarantees the movable contact site on the said first movable contact component and corresponding said fixedly contact-making surface stably rigidity contact movable contact-making surface on the movable contact site on the said second movable contact component and said fixedly contact-making surface Elastic Contact.
Preferably, said fixedly contact-making surface all is the plane.
Preferably, the thickness of the said first movable contact component is greater than the thickness of the said second movable contact component.
Preferably, two branches of the said first outside efferent couple together the formation U-shaped, and two branches of the said second outside efferent couple together the formation U-shaped.
Preferably; Said first movable contacting device and said second movable contacting device are positioned at the same side of said switching-over tumbler; Said the 3rd movable contacting device and said the 4th movable contacting device are positioned at the same side of said switching-over tumbler, residing that side of said first and second movable contacting devices and residing that parallel sided of said third and fourth movable contacting device and relative.
Preferably, the output of the said first outside efferent and the said second outside efferent respectively has two lead-out terminals.
Preferably, the output of the said first outside efferent and the said second outside efferent respectively has a lead-out terminal.
Housing;
Electric current input part, one of which end are used for being connected with the negative or positive electrode of power supply;
The electric current efferent is used to receive from the electric current that transports at least one movable contacting device between itself and the said electric current input part and will received electric current flows to the miscellaneous part on the said switch module or flow to the power consumption equipment that will be controlled by this switch module; All have fixed contact on said electric current input part and the said electric current efferent, all be provided with fixedly contact-making surface on each said fixed contact;
Described movable contacting device has input and output; Said input and output respectively comprise at least two movable contact sites; All has the movable contact-making surface that can contact on each movable contact site with said fixedly contact-making surface; But the contact of the fixedly contact-making surface of said portion, simultaneously, said at least two movable contact-making surfaces of the output of said first movable contacting device contact with the fixedly contact-making surface of said electric current efferent; So that said movable contacting device can flow to the electric current efferent through it from said electric current input part received current and with received electric current; In the second place of said movable contacting device, said at least two movable contact-making surfaces of the output of said movable contacting device separate with the fixedly contact-making surface of said electric current efferent, so that it can interrupt carrying electric current to said electric current efferent.
The preferred version of scheme 5 is following:
Preferably, described movable contacting device comprises at least two movable contact components that are fixed together and can move together, and said movable contact site is located on the said movable contact component, and at least two said movable contact sites are arranged on each movable contact component.
Preferably, the movable contact-making surface of said at least two movable contact sites all is a cambered surface.
Preferably; Said at least two movable contact components comprise at least one first movable contact component and at least one second movable contact component; Movable contact site on the said first movable contact component stretches out on the body of the said first movable contact component; Movable contact site on the said second movable contact component stretches out on the body of the said second movable contact component; The length that the length that movable contact site on the said second movable contact component stretches out is stretched out greater than the movable contact site on the said first movable contact component; With the movable contact-making surface that guarantees the movable contact site on the said first movable contact component and corresponding said fixedly contact-making surface stably rigidity contact movable contact-making surface on the movable contact site on the said second movable contact component and said fixedly contact-making surface Elastic Contact.
Preferably, said fixedly contact-making surface all is the plane.
Preferably, the thickness of the said first movable contact component is greater than the thickness of the said second movable contact component.
A kind of switch module comprises:
Housing;
Electric current input part, one of which end are used for being connected with the negative or positive electrode of power supply;
At least one pivot moves contact component; The moving contact component of said pivot has electric current input side and electric current outlet side; The moving contact component of said pivot is used for from said electric current input part received current and received electric current is flowed to the electric current efferent through it; The electric current efferent is used to receive from the electric current of the moving contact component of said pivot and will received electric current flows to the miscellaneous part on the said switch module or flow to the power consumption equipment that will be controlled by this switch module; All have fixed contact on said electric current input part and the said electric current efferent, each said fixed contact all is provided with fixedly contact-making surface; Said electric current input side keeps contacting with said electric current input part; And the moving contact component of said pivot can pivot between the primary importance and the second place around the contact site that contacts with the moving contact component of this pivot of said electric current input part; In said primary importance; The state that the electric current outlet side keeps and said electric current output leaves of the moving contact component of said pivot, in the second place of the moving contact component of said pivot, the electric current outlet side of the moving contact component of said pivot contacts with said electric current efferent;
Said pivot moves to be fixed with on the contact component and is used for adding the elastic sheet metal that contacts and conduct electricity with said electric current input part, thereby a partial fixing of said elastic sheet metal elasticity through said elastic sheet metal on the moving contact component of said pivot abuts against on the described electric current input part to realize the auxilliary conduction that adds between moving contact component of said pivot and the said electric current input part another part of this sheet metal.
The preferred version of modification 1 is following:
Preferably; Described electric current input part is provided with concave structure; The fixed contact of described electric current input part is located on the described concave structure; Described elastic sheet metal is located at the upside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the top of upper end of described concave structure or a side of its upper end.
Preferably; Described electric current input part is provided with concave structure; The fixed contact of described electric current input part is located on the described concave structure; Described elastic sheet metal is located at the downside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the part below the lower surface of the moving contact component of the said pivot of being positioned at of described electric current input part.
Preferably; All be connected with spring on the moving contact component of each pivot; One end of said spring is connected on the moving contact component of said pivot, and the other end is fixed with respect to housing, and said spring applies active force to the moving contact component of said pivot; When the moving contact component of described cam and said pivot press part from the time, the electric current outlet side of the moving contact component of said pivot and contacting of said electric current efferent are realizations under the effect of the active force of said spring.
A kind of switch module comprises:
Housing;
Input part, it is fixed with respect to described housing, and the one of which end is used for being electrically connected with the positive pole of power supply and of negative pole;
Efferent, it is fixed with respect to described housing;
Push rod, it is maintained on the said housing, and can reciprocatingly slide with respect to said housing, and described push rod is provided with cam;
At least one sliding contact parts; It is used to receive the electric current from said input part; Said at least one sliding contact parts is fixedly connected on the said push rod, and can when said push rod reciprocatingly slides in a stroke, reciprocatingly slide with respect to said housing with said push rod;
At least one pivot moves contact component; It is used to receive the electric current from said input part; The moving contact component of said pivot has electric current input side and electric current outlet side; Said electric current input side keeps contacting with said input part and conducting electricity, and the moving contact component of said pivot can pivot around the contact site that contacts with the moving contact component of this pivot of said input part;
Straight-through fixed contact; It is fixed with respect to said housing, and is used for receiving from the electric current of said input part and will received electric current flowing to the efferent of this switch module or the power consumption equipment that will be controlled by this switch module through said at least one sliding contact parts;
The speed governing fixed contact; It is fixed with respect to said housing; Its electric current that is used to receive from said at least one sliding contact parts also flows to the electronic circuit with speed-regulating function with received electric current, and said electronic circuit is electrically connected with said straight-through fixed contact;
The position of described input part, speed governing fixed contact, said straight-through fixed contact, said push rod, said sliding contact parts, the moving contact component of said pivot and said cam is arranged so that; In the whole forming process that reciprocatingly slides of said push rod; One end of said sliding contact parts keeps in touch with said input part all the time and conducts electricity; Anterior LAP in whole strokes that said push rod inwardly slides; The other end of said sliding contact parts contacts with said speed governing fixed contact and conducts electricity; Described cam keeps being pressed in said pivot and moves pressing in the portion of contact component, and the state that the electric current outlet side maintenance that makes said pivot move contact component separates with said straight-through fixed contact, the rear portion LAP in whole strokes that said push rod inwardly slides; The other end of said sliding contact parts and said speed governing fixed contact electricity break off; And contact with said straight-through fixed contact and conduct electricity, the part that presses of the moving contact component of described cam and said pivot leaves, and the electric current outlet side of the moving contact component of said pivot is contacted with said straight-through fixed contact and conducts electricity.
The preferred version of modification 2 is following:
Preferably; Each end of said sliding contact parts has at least one contacting surface; Said input part, said speed governing fixed contact and said straight-through fixed contact all have the plane; In the course of the work, said sliding contact parts and contacting of said input part, said speed governing fixed contact and said straight-through fixed contact are respectively described contacting surfaces and the contacting of each corresponding said plane.
Preferably, be provided with the moving contact component of at least two said pivots.
Preferably, be provided with at least two said sliding contact parts.
Preferably; Be fixed with elastic sheet metal on the moving contact component of said pivot, thereby a partial fixing of said elastic sheet metal elasticity through said elastic sheet metal on the moving contact component of said pivot abuts against on the described input part to realize the auxilliary conduction that adds between moving contact component of said pivot and the said input part another part of this sheet metal.
Preferably; Described input part is provided with concave structure; Described contact site is located on the described concave structure; Described elastic sheet metal is located at the upside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the top of upper end of described concave structure or a side of its upper end.
Preferably; Described input part is provided with concave structure; Described contact site is located on the described concave structure; Described elastic sheet metal is located at the downside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the part below the lower surface of the moving contact component of the said pivot of being positioned at of described input part.
Preferably, each end of said sliding contact parts has at least two contacting surfaces.
Preferably; All be connected with spring on the moving contact component of each pivot; One end of said spring is connected on the moving contact component of said pivot, and the other end is fixed with respect to housing, and said spring applies active force to the moving contact component of said pivot; When the moving contact component of described cam and said pivot press part from the time, the electric current outlet side of the moving contact component of said pivot and contacting of said straight-through fixed contact are realizations under the effect of the active force of said spring.
Sketch map below in conjunction with the present invention being carried out schematic illustration is elaborated to preferred embodiment of the present invention, and through following explanation, characteristics of the present invention and beneficial effect will be more obvious.
Description of drawings
That Fig. 1-2 0 relates generally to is embodiment 1
Fig. 1 is the stereogram that the housing of the switch module of first embodiment according to the invention is cut open; In the figure; Push rod is removed; Clearly illustrating the relative position of skate 1 and 2, speed governing fixed contact piece 20, power cathode input fixed contact piece 22 and straight-through fixed contact piece 11, the state when being in disconnection for switch shown in the figure;
Fig. 2 is the stereogram that the housing of the switch module of first embodiment according to the invention is cut open, and push rod has drawn among the figure;
Fig. 3 is the local enlarged diagram of the switch of this embodiment;
The sketch map of the sliding contact parts of the switch that Fig. 4 representes and the sliding contact on cambered surface between the fixed contact spare and plane;
Fig. 5 is the sketch map that is unkitted the push rod of sliding contact parts;
Fig. 6 is the side schematic view of skate;
Fig. 7 is the schematic perspective view of skate;
Fig. 8 is the schematic perspective view that the push rod of skate is housed;
Fig. 9 is the structural representation of power cathode input fixed contact piece;
Figure 10 is the structural representation of speed governing fixed contact piece;
Figure 11 is the structural representation of straight-through fixed contact piece;
Figure 12 is the structural representation of positive source input fixed contact piece;
Figure 13 is the structural representation of switch when being in the speed governing state, but does not draw push rod among the figure, imports the relative position of fixed contact piece 22 and straight-through fixed contact piece 11 to clearly illustrate skate 1 and 2, speed governing fixed contact piece 20, power cathode;
Figure 14 is the structural representation of switch when being in the speed governing state, and push rod has drawn among the figure;
Figure 15 is that electrical speed regulation systematically connects sketch map;
Figure 16 is the local schematic perspective view that amplifies, and FET ground has been shown among the figure has connected;
The cambered surface between Figure 17 representes when being speed governing state skate and negative pole input fixed contact piece and the speed governing fixed contact piece and the sketch map that contacts on plane;
Figure 18 is the structural representation of switch when being in pass-through state, but does not draw push rod among the figure, imports the relative position of fixed contact piece 22 and straight-through fixed contact piece 11 to clearly illustrate skate 1 and 2, speed governing fixed contact piece 20, power cathode;
Figure 19 is the structural representation of switch when being in pass-through state, and push rod has drawn among the figure;
The cambered surface between Figure 20 representes when being pass-through state skate and negative pole input fixed contact piece and the straight-through fixed contact piece and the sketch map that contacts on plane;
Figure 21-46 relates generally to embodiment 2.
Figure 21 is the stereogram of cutting open according to the housing of the switch module of second embodiment of the present invention, and in the figure, push rod is removed; To clearly illustrate the relative position of skate, speed governing fixed contact piece, power cathode input fixed contact spare, straight-through fixed contact piece and the moving contact component of pivot; This figure is merely sketch map, and in fact, skate is fixed on the push rod; And after loading onto push rod; When the both sides of sliding contact parts all only contacted with negative pole input fixed contact piece, the left end of the moving contact component of pivot was perk, and switch should be in off-state;
Figure 22 is the sketch map of power cathode input fixed contact spare;
Figure 23 is another stereogram of cutting open according to the housing of the switch module of second embodiment of the present invention, and in the figure, push rod is removed; To clearly illustrate the relative position of skate, speed governing fixed contact piece, power cathode input fixed contact spare, straight-through fixed contact piece and the moving contact component of pivot; This figure is merely sketch map, and in fact, skate is fixed on the push rod; And after loading onto push rod; When the both sides of sliding contact parts all only contacted with negative pole input fixed contact piece, the left end of the moving contact component of pivot was perk, and switch should be in off-state;
Figure 24 is the local enlarged diagram of Figure 23;
Figure 25 is another stereogram of cutting open according to the housing of the switch module of second embodiment of the present invention; In the figure; Push rod is removed, to clearly illustrate the relative position of skate, speed governing fixed contact piece, power cathode input fixed contact spare, straight-through fixed contact piece and the moving contact component of pivot.Elastic copper sheet among this figure is contained in the downside of the moving contact component of pivot.This figure is merely sketch map, and in fact, skate is fixed on the push rod; And after loading onto push rod; When the both sides of sliding contact parts all only contacted with negative pole input fixed contact piece, the left end of the moving contact component of pivot was perk, and switch should be in off-state;
Figure 26 is the local enlarged diagram of Figure 25;
Figure 27 is the structural representation of pivot moving contacting plate;
Figure 28 is the structural representation as the elastic copper sheet of a kind of form of additional contact plate;
Figure 29 is the structural representation as the elastic copper sheet of the another kind of form of additional contact plate;
Figure 30 is another stereogram of cutting open according to the housing of the switch module of second embodiment of the present invention; In the figure; Push rod is removed, to clearly illustrate the relative position of skate, speed governing fixed contact piece, power cathode input fixed contact spare, straight-through fixed contact piece and the moving contact component of pivot.Elastic copper sheet among this figure is contained in the upside of the moving contact component of pivot.Can find out among this figure that when the both sides of sliding contact parts all only contacted with negative pole input fixed contact piece, the left end of the moving contact component of pivot was perk, switch is in off-state;
Figure 31 is the structural representation of switch when being in off-state, and push rod has drawn among the figure;
Figure 32 is the Facad structure sketch map of switch when being in off-state, and the push rod that drawn among the figure also shows cam the pressing the protruding end of the moving contact component of pivot on the push rod;
Figure 33 is the structural representation that the switch module that is in off-state of electrical speed regulation system is housed;
Figure 34 be the sliding contact parts that is in off-state with negative pole input fixed contact spare between the sketch map that contacts on cambered surface and plane;
Figure 35 is the structural representation that has the push rod of cam;
Figure 36 is the structural representation that is in the speed governing state of switch, and push rod does not draw among the figure;
Figure 37 is the structural representation that is in the speed governing state of switch, and push rod has drawn among the figure;
Figure 38 is the structural representation that has the switch module of the electronic circuit board that comprises the electrical speed regulation system;
Figure 39 is the structural representation that is in speed governing state of switch assembly, shows cam the pressing the protruding end of pivot dynamic component on the push rod;
Figure 40 is the structural representation that is in speed governing state of switch assembly, shows cam on the push rod to the pressing of the protruding end of pivot dynamic component, and also shows the connected mode of FET;
Figure 41 is in the sketch map that contacts between the plane of plane and speed governing fixed contact spare of cambered surface and negative pole input fixed contact spare of sliding contact parts of speed governing state;
Figure 42 is the structural representation that is in the switch module of pass-through state; It is closed to show the moving contact component of pivot; The push rod that do not draw, thus can see that an end of sliding contact parts contacts with negative pole input fixed contact spare, and the other end contacts with speed governing fixed contact spare;
Figure 43 is the local enlarged diagram of Figure 42;
Figure 44 is the structural representation that is in the switch module of pass-through state, and it is closed to show the moving contact component of pivot, and push rod has drawn;
Contact sketch map between the plane of the cambered surface of the sliding contact parts when Figure 45 is in pass-through state and negative pole input fixed contact spare and the plane of speed governing fixed contact spare;
Figure 46 is the structural representation of straight-through fixed contact spare;
Figure 47-51 relates generally to embodiment 3.
Figure 47 is the structural representation according to the switch module of this embodiment that is in pass-through state; It is closed to show the moving contact component of pivot; The push rod that do not draw, thus can see that an end of sliding contact parts contacts with negative pole input fixed contact spare, and the other end contacts with straight-through fixed contact spare;
Figure 48 is the local enlarged diagram of Figure 47;
Figure 49 is the structural representation that is in the switch module of pass-through state, and it is closed to show the moving contact component of pivot, and push rod has drawn;
Contact sketch map between the plane of the cambered surface of the sliding contact parts when Figure 50 is in pass-through state and negative pole input fixed contact spare and the plane of straight-through fixed contact spare;
Figure 51 is the structural representation of straight-through fixed contact spare;
Figure 52-69 relates generally to embodiment 4.
Figure 52 is the structural representation according to the switch module with changement of this embodiment, mainly shows changement among the figure, and the switching-over tumbler that do not draw among the figure is with structure and the location status that clearly illustrates movable switching-over contact device;
Figure 53 is the structural representation according to the switch module with changement of this embodiment, mainly shows changement among the figure, and the switching-over tumbler has drawn among the figure;
Figure 54 is the planar structure sketch map according to the switch module with changement of this embodiment, mainly shows changement among the figure, and the switching-over tumbler that do not draw among the figure is with structure and the location status that clearly illustrates movable switching-over contact device;
Figure 55 is the structural representation according to the switch module with changement of this embodiment; Mainly show changement among the figure; In the figure; The polarity of voltage of this switch output is different with the output voltage polarity shown in Figure 52-55, and the switching-over tumbler that do not draw among the figure is with structure and the location status that clearly illustrates movable switching-over contact device;
Figure 56 is the structural representation according to the switch module with changement of this embodiment; Mainly show changement among the figure; This figure is corresponding with Figure 55; But drawn the switching-over tumbler among the figure, in the figure, the polarity of voltage of this switch output is different with the output voltage polarity shown in Figure 52-55;
Figure 57 is the planar structure sketch map according to the switch module with changement of this embodiment; This figure is corresponding with Figure 55; Mainly show changement among the figure, the switching-over tumbler that do not draw among the figure is with structure and the location status that clearly illustrates movable switching-over contact device; In the figure, the polarity of voltage of this switch output is different with the output voltage polarity shown in Figure 52-55;
Figure 58 has shown the structure of straight-through fixed contact spare;
Figure 59 has shown the structure of positive source input fixed contact spare;
Figure 60 has shown the structure of the second outside output block;
Figure 61 is the sketch map that shows the structure of the first outside output block;
Figure 62 has shown the switching-over tumbler and has connected the structural representation of two movable contacting devices above that;
Figure 63 shown the switching-over tumbler and on installing hole;
Figure 64 and 65 has shown the structure of two movable contacting devices;
Figure 66 has shown the Facad structure of second movable contacting device;
Figure 67 has shown the structure of the first movable contact component;
Figure 68 has shown the structure of the second movable contact component;
Elastic Contact between the plane of the stable rigidity contact between the plane of the cambered surface that Figure 69 has shown the first movable contact component and corresponding contact component and the lonely face of the second movable contact component and corresponding contact component;
Figure 70-73 relates generally to embodiment 5.
Figure 70 has shown the structural representation according to the switch module that has changement of this embodiment;
Figure 71 has shown the structural representation according to the switching-over tumbler of this embodiment;
Figure 72 has shown the structure of the negative pole input fixed contact spare among this embodiment;
Figure 73 has shown the structure of the positive pole input fixed contact spare among this embodiment;
Figure 74-76 relates generally to embodiment 6.
Figure 74 has shown the structure according to the switch module of the rotational structure that commutates having of this embodiment;
Figure 75 has shown the structure of the first outside output block among this embodiment;
Figure 76 has shown the structure of the second outside output block among this embodiment;
What Figure 77-81 related to is the circuit connection sketch map of respective embodiments.
Embodiment
Fig. 1-2 0 and Figure 77 show the first embodiment of the present invention.Shown in Fig. 1-3,13-15 and 18-19, comprise housing 6 according to the switch module of this embodiment.Be equipped with on this housing 6 as the power cathode input fixed contact spare 4 of input part with as the positive source of another input part and import fixed contact spare 7.The power cathode input fixed contact spare 4 that has power cathode input fixed contact piece 22 all is fixed on the housing 6 with positive source input fixed contact spare 7.One end 8 of power cathode input fixed contact spare 4 is used for being connected with the negative electricity of power supply.One end 9 of positive source input fixed contact spare 7 is used for being connected with the positive electrical of power supply.Also be fixed with straight-through fixed contact spare 10 on the housing 6.Shown in figure 11 especially, have straight-through fixed contact piece 11 on the straight-through fixed contact spare 10 as straight-through fixed contact.Also have end 12 on the straight-through fixed contact spare 10 as efferent.The speed governing fixed contact spare 3 that has as the speed governing fixed contact piece 20 of speed governing fixed contact is fixed on the housing 6, and is as shown in figs. 1 and 10.
Like Fig. 1, shown in 9, have power cathode input fixed contact piece 22 on the power cathode input fixed contact spare 4.
As shown in Figure 2, push rod 5 is maintained on the housing 6, and can reciprocatingly slide with respect to said housing.
As shown in Figure 1, also be provided with on the housing as two of sliding contact parts identical skates 1 and 2.Skate 1,2 is used to receive the electric current from power cathode input fixed contact spare 4.In this embodiment, the quantity of skate is two, but can be more.In theory, the quantity of skate is many more, and the electric current at each contact point place that flows through is more little, and total contact resistance is more little, and the current carrying capacity of switch is high more.A key character of switch module of the present invention is that it is provided with at least two sliding contact parts, with the reduction electric current at each contact point place of flowing through, and reduces total contact resistance.The protuberance 15 that does not draw push rod 5 among Fig. 1 and had is so that clearly illustrate the relative position relation of skate 1,2, power cathode input fixed contact spare 4, speed governing fixed contact piece 20 and straight-through fixed contact piece 11.In fact, skate the 1, the 2nd is fixedly connected on the push rod 5.Like Fig. 2, shown in 5 and 8, have protuberance 15 integrally formed on the push rod 5 with it.Protuberance 15 is provided with groove 17.Be provided with the contact chip spring eye 13 of an end that is used to hold contact chip spring (not shown) in the groove 17.One end of groove 17 has holding hole 16.Skate 1,2 has block tongue portion 18 and jut 12.During assembling; End with contact chip spring (not shown) is placed in the contact chip spring eye 13 earlier; Press the other end of spring and block tongue portion 18 is inserted in the holding hole 16 of protuberance 15 with the jut 12 of skate, rely on block tongue portion 18 skate to be held on the protuberance 15 with cooperating of holding hole 16.And the contact chip spring will be to the skate applied thrust owing to being squeezed.Can the push rod spring (not shown) be packed in the push rod spring hole 14 of push rod 5 then.When the push rod that will have skate 5 is assembled on the housing of switch; One end of push rod spring is resisted against the bottom, hole in push rod spring hole 14; The other end is resisted against on the protuberance 40 of straight-through fixed contact spare 10; So push rod spring can apply an outside thrust to push rod, can inwardly slide when making push rod inwardly pushed by external force.And disappear or during less than the outward thrust of push rod spring, push rod will outwards slide when inside pushing external force, until arriving its overhanging maximum position.Simultaneously, rely on the thrust of contact chip spring, the sliding contact sector-meeting abuts against on its corresponding component that will contact, and realizes good conducting.
Be appreciated that; Two skates 1,2 can reciprocatingly slide with respect to housing 6 with push rod when push rod 5 reciprocatingly slides in a stroke; Shown in Fig. 1-4; Be provided with clearance for insulation 21 between speed governing fixed contact piece 20 and the power cathode input fixed contact piece 22, be provided with clearance for insulation 23 between speed governing fixed contact piece 20 and the straight-through fixed contact piece 11.
Shown in Fig. 1-4, when the push rod 5 of switch did not inwardly slide because of pressurized, the end 24,27,25 of two skates all contacted with power cathode input fixed contact piece 22 with 28.At this moment, switch is in off-state.In the whole forming process that reciprocatingly slides of push rod 5,, import fixed contact piece 22 with power cathode all the time and keep in touch and conduct electricity though an end 24 of sliding contact parts 1,2 and 25 slides.
Shown in Figure 13-17; At push rod 5 pressurizeds and the anterior LAP in the whole strokes that inwardly slide; The push rod 5 drive skates 1 of switch separate with power cathode input fixed contact piece 22 with 28 with 2 end 27 and contact with speed governing fixed contact piece 20; At this state; Electric current flows to the efferent of switch or the power consumption equipment of being controlled by this switch through power cathode input fixed contact spare 4, skate 1 and 2, speed governing fixed contact spare 3 with the electronic circuit with speed-regulating function that is connected with speed governing fixed contact spare 3, this moment, switch was in the speed governing state.
Shown in Figure 18-20; When the push rod 5 further pressurizeds of switch and the rear portion LAP in the whole strokes that inwardly slide; Push rod 5 drive skates 1 separate with speed governing fixed contact piece 20 with 28 with 2 end 27 and contact with straight-through fixed contact piece 11; At this moment, switch is in straight-through state.At this moment, electric current flows directly to the efferent of switch or by the power consumption equipment of this switch control through power cathode input fixed contact spare 4, skate 1 and 2, straight-through fixed contact spare 10.
About the flow direction of electric current, can also be with reference to shown in Figure 77.
Like Fig. 4,6-8, shown in 17 and 20, skate 1 and each end 24,25,27 and 28 of 2 all have a contacting surface, and power cathode input fixed contact piece 22, speed governing fixed contact piece 20 and straight-through fixed contact piece 11 all have the plane.In the course of the work, contacting of skate and power cathode input fixed contact piece 22, speed governing fixed contact piece 20 and straight-through fixed contact piece 11 is respectively contacting surface and the contacting of each corresponding plane.Skate 1 and each end of 2 also can have two or more contacting surfaces, also just reduce the electric current at each contact point place of flowing through, and reduce total contact resistance.
Shown in figure 15; The electrical speed regulation system (PCB) 35 that is made up of electronic circuit is connected with speed governing fixed contact spare 3 through the solder joint on the speed governing fixed contact spare 3 31, is connected with this positive pole input fixed contact spare 7 through the solder joint 33 on the positive source input fixed contact spare 7.During installation, if desired, can utilize the anchor point 32 on the straight-through fixed contact spare 10 easily electrical speed regulation system 35 to be positioned.When skate 1 and 2 end 27 when 28 contact with speed governing fixed contact piece 20, through solder joint 31, the electrical speed regulation system gets electric and works, and the output electronic impulse triggers transistor (FET).Shown in figure 16, speed governing fixed contact spare 3 is connected with FET through solder joint 37 and can carries electric current to it.The output of FET is connected with straight-through fixed contact spare 10 through the solder joint 36 on the straight-through fixed contact spare 10.The course of work of this switch of brief description.
The push rod centre bore is equipped with spring, and spring is under the effect that does not receive external force, and push rod is in the most outside position, and this moment, two skates all were close on the power cathode input fixed contact piece fully.Negative power supply breaks off, and switch is in " OFF " position.
When push rod inwardly moves; Then two skates move to the speed governing fixed contact piece; Connect with the speed governing fixed contact piece, electric current circulates to the speed governing fixed contact piece by power cathode input negative pole input fixed contact piece and through two skates thereupon, and promptly the speed governing fixed contact piece gets; It is the electrical speed regulation system works that the speed governing fixed contact piece gets after electric; And output electronic impulse triggering transistor, the fixed contact piece of speed governing is simultaneously imported principal current to FET, and the output of FET connects straight-through stator.Because positive source input fixed contact piece is direct coupled with the electrical speed regulation system, at this moment, switch has been realized speed-regulating function.Shown in Figure 13-17.
Along with push rod continues inwardly motion, two skates are crossed the speed governing fixed contact piece and are connected with straight-through fixed contact piece, and switch is in straight-through function.Shown in Figure 18-20.
Embodiment one has adopted the way of contact of two skates, promptly gets into the speed governing state from starting working to, arrives to get into pass-through state again, all uses 2 identical skates, and promptly all work contact-making surfaces all are dual.Compare with the product that adopts single skate movable type to contact; This kind of product has increased a current channel when work; The electric current of feasible each current channel of flowing through is minimized, and reduces total contact resistance, and the current carrying capacity of switch has improved with regard to corresponding.
Figure 21-46 shows the second embodiment of the present invention. embodiment 2 is with the main distinction of embodiment 1: in embodiment 1, the straight-through function of switch be through skate 1 with 2 simultaneously and power cathode import fixed contact piece 22 and contact with straight-through fixed contact piece 11 on the straight-through fixed contact spare 10 and realize.And in embodiment 2; Lead directly to fixed contact piece 11 on the straight-through fixed contact spare 10 and be provided with straight-through fixed contact piece 211; Rear portion LAP skate at the stroke of push rod still contacts with the speed governing fixed contact piece or can not contact with the speed governing fixed contact piece, but does not contact with straight-through fixed contact spare certainly.The straight-through function of switch is imported fixed contact spare through the moving contact component of at least two pivots with power cathode and is communicated with straight-through fixed contact spare and realizes.Utilize at least two pivots to move contact component (pivot moving contacting plate) and reduce the key character that contact resistance is embodiment 2.Describe the difference of embodiment 2 and embodiment 1 below in detail, will no longer stress for the identical point between them.
Shown in Figure 21-26, in this embodiment, speed governing fixed contact spare 203 is provided with speed governing fixed contact piece 220.The size of this speed governing fixed contact piece, shape or area are different with the speed governing fixed contact piece 20 of a kind of embodiment; So that in the rear portion LAP of the sliding stroke of push rod 205, two skates 201,202 still keep contacting with speed governing fixed contact piece 220.Certainly, be appreciated that behind the whole specification of reading that skate 201 also can separate with speed governing fixed contact piece 220 with 202 in the LAP of rear portion when moving contact component 254 closures of pivot have realized straight-through function.
Be respectively equipped with clearance for insulation 221 and 223 between speed governing fixed contact piece 220 and power cathode input fixed contact piece 222 and the straight-through fixed contact spare 210.Have the straight-through fixed contact piece 211 of one with it on the straight-through fixed contact spare 210, this straight-through fixed contact piece 211 is different with the straight-through fixed contact piece 11 among the embodiment 1.Should be provided with two fixed contacts 261 by straight-through fixed contact piece 211.On power cathode input fixed contact spare 204, be provided with support portion 251.Be clearly shown that ground like Figure 22, have concave structure 255 on the support portion 251.Pivot contact component 254 is provided with the groove 280 that cooperates with the concave structure 255 of support portion.Also be provided with extension spring connecting portion 256 on the pivot contact component 254.On the end 278 as the electric current outlet side of pivot contact component 254 hole 270 is arranged, utilize this hole, contact 262 is riveted on this pivot contact component.The other end 261 forms the protruding end as the portion of pressing of the moving contact component of pivot.This protruding end has the cambered surface of rounding off.Shown in Figure 23-26, be fixed with extension spring connecting portion 259 on the housing.During assembling; The groove 280 of pivot contact component 254 is assembled on the concave structure 255 on the support portion 251; One end of extension spring (not shown) is connected on the extension spring connecting portion 256 on the pivot contact component, and the other end is connected on the extension spring connecting portion of fixing with respect to housing 259.The pulling force of extension spring can make the contact 262 of pivot contact component 254 be pressed on the fixed contact 261 of straight-through fixed contact piece 211.
The leg bar 205 among the embodiment 2 and the difference of the push rod among the embodiment 1 are also being provided with cam 285 on it, like Figure 31, shown in 32 and 35.Can't see the sliding contact parts 201 and 202 on the push rod 205 among Figure 35, but in fact, push rod 205 is provided with sliding contact parts 201 and 202, sliding contact parts 201 with 202 with embodiment 1 in identical mode be fixed on the push rod 205.
Shown in Figure 21-26 is the state of switch when being unkitted push rod 205. after being assembled to push rod on the switch; When sliding contact parts does not make sliding contact parts contact with the speed governing fixed contact piece with push rod 205 inside slips as yet; Cam 285 on the push rod can be pressed against on the protruding end 261 of pivot contact component; And the contact 262 of the moving contact component of two pivots is separated with contact 261 on the straight-through fixed contact piece 211, shown in Figure 30-32.
In embodiment 2, on the moving contact component 254 of pivot, be provided with elastic copper sheet 256 or elastic copper sheet 266.The effect of elastic copper sheet is to compensate concave structure 255 places or support portion 251 places power cathode input fixed contact spare 204 moves the deficiency that contacts between the contact component 254 with pivot.Elastic copper sheet provides the moving contact component of pivot to import additional contact the between the fixed contact spare with power cathode.Like Figure 21, shown in 23 and 24, the moving contact component 254 of pivot is provided with the elastic copper sheet 256 that is positioned at its upside.But also can be shown in Figure 25 and 26, the downside that moves contact component 254 at pivot is provided with elastic copper sheet 266.And, when needs are provided with two elastic copper sheets, can be respectively elastic copper sheet 256 and elastic copper sheet 266 be set at the upside and the downside of pivot contact component 254.It is the optional key character of embodiment 2 that the resistance that at least one elastic copper sheet reduces the contact position is set on each pivot moving contacting plate.Elastic copper sheet can also be realized to the moving contact component of pivot and as the auxilliary conduction that adds between the power cathode input fixed contact piece of input part.
Even shown in Figure 30-32 be push rod inwardly slide as yet or inwardly slide but yet deficiency so that the state of skate 201 when 202 contact with speed governing fixed contact piece 220; At this state; The face that presses 287 of the cam 285 on the push rod keeps being pressed against on the protruding end 261 of pivot moving contacting plate 254, causes the contact 262 of pivot moving contacting plate to separate with fixed contact 261 along with the perk of end 278 or 268.At this moment, switch is in off-state.
When push rod 205 beginning or continue inwardly to slide, i.e. anterior LAP in whole strokes that push rod inwardly slides, it can drive two skates and inwardly slide and the one of which end is contacted with speed governing fixed contact piece 220.But cam 285 still keeps pressing protruding end 261, end 278 or 268 and still perk of contact 262.Still can't realize leading directly to, switch is in the speed governing state.Shown in Figure 36-40.
Along with push rod 205 continues inwardly to slide, the rear portion LAP in whole strokes that push rod inwardly slides, cam 285 will leave protruding end 261.In that moving contact component applies under the effect of the extension spring of lower pulling force to pivot, the end 278 of the moving contact component of pivot descends and makes contact 262 at the electric current outlet side contact closed with contact 261 and function is led directly in realization.Shown in Figure 42-44.
Shown in figure 27, the end 278 on the pivot moving contacting plate has riveted holes 270, and elastic copper sheet 256 and/or an end 258 and/or 268 of 266 can be anchored on the upside and/or downside of pivot moving contacting plate through this riveted holes.Because the elasticity of elastic copper sheet; After the pivot moving contacting plate that has a good elastic copper sheet of anchoring is mounted on the support portion 251, the other end 257 of elastic copper sheet and/or 267 will be pressed against on the top of upper end of concave structure of support portion and/or on the side of the upper end of support portion tightly.
Cambered surface when Figure 34,41 and 45 is respectively off-state at switch, speed governing state and pass-through state between skate 201 and power cathode input fixed contact piece 222, the speed governing fixed contact piece 220 and the sketch map of plane contact.
Can find out that in the whole forming process that reciprocatingly slides of push rod 205, sliding contact parts 201 and an end 224 of 202 keep in touch with power supply input fixed contact piece 222 all the time and conduct electricity.
Shown in figure 38, basic identical among the connected mode of the electrical speed regulation system (PCB) 235 that constitutes by electronic circuit and the embodiment 1.Electrical speed regulation system 235 imports the solder joint 233 on the fixed contact spare 207 with positive source, the solder joint 231 on the speed governing fixed contact spare 203 is connected.During installation, if desired, can utilize the anchor point 232 on the straight-through fixed contact spare 210 easily electrical speed regulation system 235 to be positioned.When speed governing fixed contact spare gets when electric, the electrical speed regulation system gets electric and work and output electronic impulse trigger transistor (FET).
Shown in figure 40, FET is connected with solder joint 236 on the straight-through fixed contact spare 210, and is connected with solder joint 237 on the speed governing fixed contact spare 203, speed governing fixed contact spare 203 through solder joint 237 to FET input principal current.
Two skates 201 and 202 as sliding contact parts are arranged in the present embodiment, still, as the case may be, also passable with a skate or more a plurality of sliding contact parts.The course of work of facing the switch of this embodiment is down made brief description:
Extension spring all is equipped with at 256 places of the moving contact component of pivot, receives downward tension.Below push rod, done cam.When not receiving external force, push rod do not do the time spent; Two skates are close to power cathode input fixed contact piece; The speed governing fixed contact piece must not be electric, and the protruding end of the moving contact component of two pivots of cam pressing makes the left end perk of the moving contact component of two pivots; Break off with 2 contacts of straight-through contact chip, switch is in " OFF " position (shown in Figure 30-34).
Along with push rod inwardly moves, when two skate UNICOM speed governing fixed contact pieces, promptly the speed governing fixed contact piece gets electricly, and speed-regulating function is realized (shown in Figure 36-41).
Push rod continues inwardly motion; When cam also breaks away from the protruding end of the moving contact component of two pivots of compressing; Two moving contact components of pivot receive the downward tension of extension spring, accomplish the electric closure (shown in Figure 42-45) of power cathode input fixed contact piece and straight-through contact chip.
Embodiment two gets into the speed governing state with embodiment one from starting working to, adopt the pivot moving contacting plate closed type contact of parallel connection in pass-through state.Just realized the binary channels shunting of the moving contact of pivot like this in pass-through state.With the moving contact form of pivot under pass-through state is that the moving product that contacts of single pivot is compared; This kind of product has increased the contact of pair of contact in pass-through state; Thereby can reduce the electric current at each contact point place of flowing through, and total contact resistance is reduced, the current capacity of switch increases.Compare embodiment one, the moving contact of the pivot of pass-through state is better than the current capacity that moves contact.
Figure 47-51 shows the third embodiment of the present invention.The 3rd embodiment is first embodiment and the combining of second embodiment basically.Shown in Figure 51, on the straight-through fixed contact spare straight-through fixed contact piece 311 and 312 are arranged.Shown in figure 47, in the LAP of the rear portion of the inside sliding stroke of push rod, or in push rod inwardly slides into during the position; Sliding contact parts 301 contacts with straight-through fixed contact piece 312 with 302, and the output of the moving contact component 354 of pivot contacts with straight-through fixed contact piece 311, realizes straight-through function through two paths like this; Realized the shunting of electric current; Thereby can reduce the electric current at each contact point place that flows through, well has reduced total contact resistance, has improved the bearing capacity of switch.
Accomplish from " OFF " to " speed governing " overall process by the movable type contact to " leading directly to "; Additional again pivot moves closing device when leading directly to function simultaneously.At this moment, at " leading directly to " state, there are two skates and two pivot moving contacting plates to accomplish power cathode input fixed contact spare jointly and connect with the electric of straight-through contact chip.2 groups of sliding contacts are moved contact compound with 2 groups of pivots, have further reduced the electric current at each contact point place of flowing through, and have reduced total switch internal resistance, have promptly reduced the temperature rise of switch.
Though in embodiment 3; Be provided with two sliding contact parts and two moving contact components of pivot; But the combination that according to actual needs, also can utilize the combination of the moving contact component of a sliding contact parts and pivot or utilize more a plurality of sliding contact parts and more a plurality of pivot to move contact component realizes reducing the purpose of contact resistance and shunt current.
Can notice, be used for explaining in these three embodiment accompanying drawings all comprising changement.But when three top embodiment being done explanation, the changement to switch module does not carry out explanatory note at length.Because the present invention can be used for not having the switch module of changement, also can be used to have the switch module of changement.Whether according to needs are to carrying out conversion to realize the forward or reverse such as the such equipment of motor by the polarity of the voltage of this switch module output, and switch module can have changement or not have changement.To do explanation to the switch module that comprises new changement that the present invention proposes below; The all structures and the characteristics of illustrated mistake also can change top structure of having explained and characteristics as required above in this switch module that comprises changement, can comprising.Like this, in the following description emphasis is described the characteristics of changement, and other technical characterstic of the top switch module of having explained that possibly make up with it for changement will repeat no more.But, in this switch module that comprises changement, can the present invention characteristics of having described in the above that propose and the characteristics about changement that will be described below be combined, with the more dominance ability of the switch of realizing having changement.
Figure 52-the 61st, the structural representation of changement.
The switch module of this embodiment comprises housing, can also comprise the building block described in the embodiment of front or have the design feature described in the embodiment of front.Shown in Figure 52-57, the power cathode that is used for being connected with the negative electricity of power supply that this switch module also comprises positive pole input fixed contact spare 407 that power supply is used for being connected with the positive electrical of power supply, mentioned like the embodiment of front is imported fixed contact spare.The input 409 of anodal input fixed contact spare 407 is as first input part, and its output is as the first inner efferent.Has anodal contact chip 408 on this output as the first inner output switching-over fixed contact.The input of power cathode input fixed contact spare is as second input part.
This switch also comprises the straight-through fixed contact spare 410 of the conduct second inner efferent that can be disconnected to be electrically connected with power cathode input fixed contact spare.The input of straight-through fixed contact spare 410 can be imported fixed contact spare electric connection or disconnection with the negative pole as second input part, and has the negative pole contact chip 418 that can be used as the second inner output switching-over fixed contact on the output.
The first outside output block 471 as the first outside efferent is fixed with respect to housing; Its output 473 is used for and will be electrically connected by the electric equipment of this switch module control such as the input terminal of motor, and its input has the contact chip 475 as the first outside output switching-over fixed contact.
The second outside output block 472 as the second outside efferent is fixed with respect to housing; Its output 474 is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the contact chip 476 as the second outside output switching-over fixed contact.All has fixedly contact-making surface on the first inner output switching-over fixed contact, the second inner output switching-over fixed contact, the first outside output switching-over fixed contact and the second outside output switching-over fixed contact.
Shown in Figure 63, switching-over tumbler 470 is provided with four installing holes 447.An important feature of present embodiment is the improvement to movable contacting device.Shown in Figure 64-67, each movable contacting device all is made up of one first movable contact component and second a bigger movable contact component of the ratio first movable contact component elasticity.The first movable contact component 481 and the second movable contact component 491 are formed first movable contacting device.The first movable contact component 482 and the second movable contact component 492 are formed second movable contacting device.Have perpendicular pin hole 441 on the second movable contact component 492, supply the perpendicular pin 487 on the first movable contact component to insert.After the insertion, the spring (not shown) is enclosed within on the perpendicular pin, the second movable contact component is between the spring and the first movable contact component.Perpendicular pin 487 with the movable contacting device that combines is inserted in the corresponding installing hole 447 of reversing arrangement 470 together with spring then.To turn to tumbler 470 to be installed on the Switch main body again, the movable contact site of movable contacting device is tightly pressed against on the corresponding fixedly contact-making surface.Combination through the first movable contact component and the second movable contact component can reduce the electric current at each contact point place of flowing through, and total contact resistance is reduced.
After assembling, can and thereby can change the polarity of voltage on the output 473 and 474 of two outside output blocks so that two movable contacting devices rotate synchronously to tumbler through Rotation With Changing.Shown in Figure 52-54; When the movable contact site of first movable contacting device is contacted with the input 476 of the negative pole contact chip 418 and the second outside output block through rotation switching-over tumbler; And the movable contact site that makes second movable contacting device is when contacting with the input 475 of the anodal contact chip 408 and the first outside output block 471; Output 473 output positive voltages, and output 474 output negative voltages.Shown in Figure 55-57; When the movable contact site of first movable contacting device is contacted with the input 475 of the negative pole contact chip 418 and the first outside output block through rotation switching-over tumbler; And the movable contact site that makes second movable contacting device is when contacting with the input 478 of the anodal contact chip 408 and the second outside output block 472; Output 473 output negative voltages, and output 474 output positive voltages.
Also to do following explanation for movable contacting device:
Shown in Figure 64-66; The movable contact site 485 that the first movable contact loses on 482 stretches out on the body of the first movable contact component; The movable contact site 494 of elasticity and 428 on the second movable contact component 492 stretches out on the body of the said second movable contact component 492; The length that the length that the movable contact site 428 of elasticity and 494 stretches out is stretched out greater than the movable contact site 485 of the rigidity of the first movable contact component; With the movable contact-making surface that guarantees the movable contact site 485 of rigidity with accordingly fixedly contact-making surface stably rigidity contact movable contact-making surface on the movable contact site 428 of elasticity and 494 and fixing contact-making surface Elastic Contact.
Like this, the input of each in first movable contacting device and second movable contacting device and output respectively comprise two movable contact sites, all have the movable contact-making surface that can contact with fixing contact-making surface on each movable contact site.Increased total contact area, thereby reduced the electric current at each contact point place that flows through, total contact resistance is reduced.
Be appreciated that also and can be combined into movable contacting device with the movable contact component more than two, the input of movable contacting device and output will respectively have the movable contact site more than two like this.
As can be seen from the figure, the movable contact-making surface of two of each movable contact component movable contact sites all is lonely face.Can realize the sliding contact good like this with plane fixedly contact-making surface.In addition, on the movable contact site of the second bigger movable contact component of elasticity, be bent to form two lugs 496 and 498 through slyness, formed rounding off between other part of lug and contact site, this helps the smooth and easy slip of movable contacting device.
The thickness of the movable contact component of first shown in the figure can be realized the elasticity of the elasticity of the second movable contact component greater than the first movable contact component like this greater than the thickness of the second movable contact component.But also can realize flexible difference between these two kinds of contact components through choosing material different.
Because first movable contacting device has and the essentially identical structure of second movable contacting device, so through the explanation of reference to one kind of movable contacting device, the technical staff also is appreciated that the structure of another kind of movable contacting device.
Switch is when speed-regulating function, and it is electric that the power supply of power cathode input fixed contact piece gets the speed governing fixed contact piece through two sliding contact parts, connects straight-through fixed contact piece through power transistor (FET) again.And when leading directly to function; Negative pole input fixed contact piece is through two sliding contact parts (embodiment 1); Two moving contact components (embodiment 2) of pivot or two sliding contact parts and two moving contact components (embodiment 3) of pivot directly connect straight-through fixed contact piece; Promptly straight-through fixed contact piece will get into the input that switch turns to converting means as the input of power cathode, and positive source input fixed contact piece will turn to another input of converting means as switch.The input of power cathode and positive source input will be through the connecting modes that rotates, and "+" of conversion lead-out terminal, "-" polarity are with the function (shown in Figure 52-57) of the forward or reverse of realizing motor.In Figure 52-57; 418 places turn to a terminal of converting means input for straight-through fixed contact piece 410 conducts; 408 places are that positive source input fixed contact piece is as another terminal that turns to the converting means input; 475 places are a contact zone of lead-out terminal 471, and 476 places are a contact zone of efferent 472.There are 2 groups through compound rotation contact device.
Two rotation contact devices are that 2 packet sizes differ, and shape is the rotation contact device (shown in Figure 62-69) through being composited similarly.Among Figure 62-69, first rotates contact component is processed by thicker copper material, and second rotates contact component is then processed by the thin good copper sheet of elasticity.Because two are rotated the compound of contact component, make to turn to all electric connections of converting means all to have the electric shock of two parallel connections, thereby can reduce the electric current at each contact point place of flowing through, and total contact resistance is reduced, the current carrying capacity of switch increases.
Compare with the present product of producing of like product and our company on the market; This kind of switch has been introduced the notion of auxiliary contact in commutating structure, the contact-making surface of promptly working is 2 (existing product is 1 contact-making surface), has had more a current channel when making in working order; Realize the shunting function; Can reduce the electric current at each contact point place of flowing through, and total contact resistance is reduced, the current capacity of switch increases.
Figure 70-73 shows the structure according to the switch module of embodiment 5.Embodiment 5 is similar with embodiment 4.The main distinction of embodiment 5 and embodiment 4 is described below.
The power cathode that is used for being connected with the negative electricity of power supply that this switch module also comprises the positive pole input fixed contact spare 507 that is used for being connected with the positive electrical of power supply, mentioned like the embodiment of front is imported fixed contact spare.
Shown in Figure 73, the input 509 of anodal input fixed contact spare 507 is as first input part, and its output is as the first inner efferent.Has the first inner output switching-over fixed contact on this output.Thereby the first inner output switching-over fixed contact has two branches and forms U-shaped, and the fixedly anodal contact chip 518 and 528 of contact-making surface of a conduct is respectively arranged in each branch of the fixed contact of U-shaped.
This switch also comprises the straight-through fixed contact spare 510 of the conduct second inner efferent that can be disconnected to be electrically connected with power cathode input fixed contact spare.The input of straight-through fixed contact spare 510 can be imported fixed contact spare electric connection or disconnection with the negative pole as second input part, and has the second inner output switching-over fixed contact on the output.Thereby the second inner output switching-over fixed contact has two branches and forms U-shaped, and the fixedly negative pole contact chip 548 and 568 of contact-making surface of a conduct is respectively arranged in each branch of the fixed contact of U-shaped.Should also be provided with straight-through fixed contact piece 511 and 512 on the straight-through fixed contact spare 510, the technical staff is appreciated that the effect of these two contact chips to the explanation of embodiment with reference to the front.
Shown in Figure 70, outside output contact component 581 is formed the first outside efferent with outside output contact component 571.These two outside output blocks 571 can couple together into integral body or independent separately output with 581.Have lead-out terminal 573 and 575 respectively on the outside output contact component 571 and 581, these two lead-out terminals are used for the one-level of output voltage.Outside output contact component 572 is formed the second outside efferent with outside output contact component 582.These two outside output blocks 572 can couple together into integral body or independent separately output with 582.Have outside lead-out terminal 574 and 576 respectively on the outside output contact component 572 and 582, be used for another utmost point of output voltage.Each utmost point has two lead-out terminals to help the convenience of wiring.
Shown in Figure 71, all carry movable contacting device on two sides of switching-over tumbler 570.All be provided with 4 perpendicular pin installing hole (not shown)s on each side in two sides of switching-over tumbler 570.Through these installing holes, on a side of switching-over tumbler 570, be provided with first movable contacting device 591 and second movable contacting device 592.On another side of switching-over tumbler 570, be fixed with the 3rd movable contacting device 593 and the 4th movable contacting device 594.Residing that side of first and second movable contacting devices and residing that parallel sided of said third and fourth movable contacting device and relative.The input of each movable contacting device and output comprise two movable contact sites respectively, all have the movable contact-making surface that can contact with said fixedly contact-making surface on each movable contact site.Like this, each contact all is four contact parallel connections.But be appreciated that; Even a movable contact site only is set,, also can guarantee to have two contact parallel connections because each utmost point of voltage all uses two movable contacting devices to come conducting on movable contacting device; Thereby can reduce the electric current at each contact point place of flowing through, and reduce total contact resistance.At this moment, turn to the inner all contacts of converting means to increase to 4 contact parallel connections, can further reduce the electric current at each contact point place that flows through; And total contact resistance is further reduced; And lead-out terminal is extended to 573 and 575 1 groups and 574 and 576 1 groups, and its external line can not increase the line warp because of loaded current strengthens, and connects and form a polarity by 573 and 575 two electrical connecting wires; Form another polarity by 574 and 576 two electrical connecting wires and connect, make to connect assembling easily.
The variation relation of the polarity of turned position and the output voltage of switching-over tumbler 570 and to illustrated basic identical of top embodiment.
The structure of movable contacting device and top embodiment are also basic identical.
But; Be appreciated that; Even each movable contacting device is not to comprise at least two movable contact components that are fixed together and can move together; But have only a movable contact component to constitute, because each utmost point is provided with two movable contacting devices, guaranteed that also each utmost point has at least two parallel connections of getting an electric shock.
Shown in Figure 74-76, basic identical according to the mechanism of the switch module of embodiment 6 and embodiment 5.Difference is that mainly the first outside efferent is made up of the outside output block 671 of an integral body, and has a lead-out terminal, and the second outside efferent is made up of the outside output block 672 of an integral body, and its output has a lead-out terminal.And outside output block 671 and 672 all is a U-shaped.Like this, each utmost point has an outside terminal, makes for the internal structure that increases inner contact quantity does not cause the change to outside wiring construction, makes wiring simple and easy.At this moment, turn to the inner all contacts of converting means to increase to 4 contact parallel connections, thereby can further reduce the electric current at each contact point place of flowing through, and total contact resistance is further reduced, and lead-out terminal still is M1 and M2.Its external line makes to connect assembling easily not because of the change of internal structure changes.
In conjunction with above-mentioned explanation, from Figure 77, be appreciated that the circuit theory of embodiment 1 and the circuit theory of embodiment 4.From Figure 78, be appreciated that the circuit theory of embodiment 2 and the circuit theory of embodiment 4.From Figure 79, be appreciated that the circuit theory of embodiment 3 and the circuit theory of embodiment 4.From Figure 80, be appreciated that the circuit theory of embodiment 3 and the circuit theory of embodiment 5.From Figure 81, be appreciated that the circuit theory of embodiment 3 and the circuit theory of embodiment 6.
On the disclosed basis of this specification, the technical staff can increase and decrease, retrofit or reconfigure each characteristics above-mentioned and various structure, does not exceed protection scope of the present invention.A kind of example of remodeling is provided below.
Among the described in the above embodiment, switch module comprises electronic circuit with speed-regulating function and the changement that is used for the structure of speed governing and is used for conversion output voltage polarity.Particularly, in the above embodiments, proposed new pivot contact component and reached structure relevant and the new movable contacting device that is used to commutate with it.This new pivot contact component can be used for various switches, is particularly useful for not having in the regular tap of speed-regulating function and commutation function, as the parts of disconnection of the Control current in the switch or connection.
This regular tap assembly comprises: housing; Electric current input part, one of which end are used for being connected with the negative or positive electrode of power supply; At least one pivot moves contact component; The moving contact component of said pivot has electric current input side and electric current outlet side; The moving contact component of this pivot is used for from said electric current input part received current and received electric current is flowed to the electric current efferent through it; The electric current efferent is used to receive from the electric current of the moving contact component of said pivot and will received electric current flows to other parts on the said switch module or flow to the power consumption equipment that will be controlled by this switch module; All have fixed contact on said electric current input part and the said electric current efferent, each said fixed contact all is provided with fixedly contact-making surface; Said electric current input side keeps contacting with said electric current input part; And the moving contact component of said pivot can pivot between the primary importance and the second place around the contact site that contacts with the moving contact component of this pivot of said electric current input part; In said primary importance; The state that the electric current outlet side keeps and said electric current output leaves of the moving contact component of said pivot, in the second place of the moving contact component of said pivot, the electric current outlet side of the moving contact component of said pivot contacts with said electric current efferent;
Said electric current input part can have the concave structure 255 as described in embodiment 2 and 3; The fixed contact of described electric current input part is located on the described concave structure 255; Described elastic sheet metal is located at the upside or the downside of the moving contact component of described pivot, and described another part of described elastic sheet metal is pressed against on the top of upper end of described concave structure or a side of upper end or be pressed against on the part below the lower surface of the moving contact component of the said pivot of being positioned at of described electric current input part;
The moving contact component of said pivot has the structure as the moving contact component 354 of pivot among moving contact component 254 of the pivot among the embodiment 2 or the embodiment 3; Specifically be used for adding the elastic sheet metal 256 and/or 266 that contacts and conduct electricity, thereby a partial fixing of said elastic sheet metal elasticity through said elastic sheet metal on the moving contact component of said pivot abuts against on the described electric current input part to realize the auxilliary conduction that adds between moving contact component of said pivot and the said electric current input part another part of this sheet metal with said electric current input part with being fixed with on the moving contact component of pivot.This simple construction of switch also has the effect that reduces contact resistance.But this switch can not have speed-regulating function and commutation function and the required structure member of these functions.
The example of another kind of remodeling is provided below.
The example utilization of this remodeling be in embodiment 4-6 as the movable contacting device of switching-over parts, but in the switch module of this remodeling, this movable contacting device plays that electric current breaks off or connects, rather than the effect of switching-over.In other words, in the switch module of this remodeling, the changement among the embodiment 4-6 through behind the suitable remodeling, is used as the simple switch that electric current is broken off or connects.Certainly, in this switch, can have a movable contacting device (only being used for a utmost point of voltage is broken off or closed control) or two movable contacting devices (being used for respectively the two poles of the earth of voltage being broken off or closed control).This switch comprises: housing; Electric current input part, one of which end are used for being connected with the negative or positive electrode of power supply; The electric current efferent is used to receive from the electric current that transports at least one movable contacting device between itself and the said electric current input part and will received electric current flows to the miscellaneous part on the said switch module or flow to the power consumption equipment that will be controlled by this switch module; All have fixed contact on said electric current input part and the said electric current efferent, all be provided with fixedly contact-making surface on each said fixed contact; Described movable contacting device has input and output; Said input and output respectively comprise at least two movable contact sites; All has the movable contact-making surface that can contact on each movable contact site with said fixedly contact-making surface; Said movable contacting device can move between its primary importance and the second place with respect to said fixed contact; Primary importance at said movable contacting device; At least two movable contact-making surfaces of the input of said movable contacting device contact with the fixedly contact-making surface of said electric current input part, and simultaneously, said at least two movable contact-making surfaces of the output of said first movable contacting device contact with the fixedly contact-making surface of said electric current efferent; So that said movable contacting device can flow to the electric current efferent through it from said electric current input part received current and with received electric current; In the second place of said movable contacting device, said at least two movable contact-making surfaces of the output of said movable contacting device separate with the fixedly contact-making surface of said electric current efferent, so that it can interrupt carrying electric current to said electric current efferent.Movable contacting device adopts the form described in the embodiment 4-6; Comprise at least two the movable contact components 481 and 491 that are fixed together and can move together; Said movable contact site is the movable contact site 428 and 485 that is located on said movable contact component 481 and 491, and at least two said movable contact sites are arranged on each movable contact component.
The technical staff is further appreciated that the changement among the embodiment 4-6 can use separately.
Claims (18)
1. switch module comprises:
Housing;
First input part, it is used for being electrically connected with the positive pole of power supply and of negative pole;
Second input part, it is fixed with respect to described housing, and its input is used for being electrically connected with another of the positive pole of power supply and negative pole;
The first inner efferent, it is fixed with respect to described housing, and it is connected with said first input part, and has the first inner output switching-over fixed contact on it;
The second inner efferent, it is fixed with respect to described housing, its input can with said second input part electric connection or the disconnection, its output has the second inner output switching-over fixed contact;
The first outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the first outside output switching-over fixed contact;
The second outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the second outside output switching-over fixed contact; The first inner output switching-over fixed contact, the said second inner output switching-over fixed contact, the said first outside output switching-over fixed contact and the said second outside output switching-over fixed contact all have fixedly contact-making surface;
The switching-over tumbler; Which is provided with first movable contacting device and second movable contacting device; The input and the output of each in described first movable contacting device and said second movable contacting device respectively comprise at least two movable contact sites; All has the movable contact-making surface that can contact on each movable contact site with said fixedly contact-making surface; Said switching-over tumbler can rotate between its primary importance and the second place; Consequently; First movable contacting device can move between its primary importance and the second place with respect to said housing; Primary importance at said first movable contacting device; At least two movable contact-making surfaces of the input of said first movable contacting device contact with the fixedly contact-making surface of the said first inner output switching-over fixed contact; Said at least two movable contact-making surfaces of the output of said first movable contacting device contact with the fixedly contact-making surface of the said second outside output switching-over fixed contact; The second place at said first movable contacting device; The said movable contact-making surface of the input of said first movable contacting device still contacts with the fixedly contact-making surface of the said first inner output switching-over fixed contact, and said at least two movable contact-making surfaces of the output of said first movable contacting device contact with the fixedly contact-making surface of the said first outside output switching-over fixed contact, and second movable contacting device can move between its primary importance and the second place with respect to said housing; Primary importance at said second movable contacting device; Said at least two movable contact-making surfaces of the input of said second movable contacting device contact with the fixedly contact-making surface of the said second inner output switching-over fixed contact, and said at least two movable contact-making surfaces of the output of said second movable contacting device contact with the fixedly contact-making surface of the said first outside output switching-over fixed contact, in the second place of said second movable contacting device; Said at least two movable contact-making surfaces of the input of said second movable contacting device still contact with the fixedly contact-making surface of the said second inner output switching-over fixed contact, and said at least two movable contact-making surfaces of the output of said second movable contacting device contact with the fixedly contact-making surface of the said second outside output switching-over fixed contact.
2. switch module as claimed in claim 1; It is characterized in that: described each movable contacting device comprises at least two movable contact components that are fixed together and can move together; Said movable contact site is located on the said movable contact component, and at least two said movable contact sites are arranged on each movable contact component.
3. switch module as claimed in claim 1 is characterized in that: the movable contact-making surface of said at least two movable contact sites all is a cambered surface.
4. switch module as claimed in claim 2; It is characterized in that: said at least two movable contact components comprise that at least one first movable contact component and at least one are than the said first movable contact component more resilient second movable contact component; Movable contact site on the said first movable contact component stretches out on the body of the said first movable contact component; Movable contact site on the said second movable contact component stretches out on the body of the said second movable contact component; The length that the length that movable contact site on the said second movable contact component stretches out is stretched out greater than the movable contact site on the said first movable contact component; With the movable contact-making surface that guarantees the movable contact site on the first movable contact component and corresponding said fixedly contact-making surface stably rigidity contact movable contact-making surface on the movable contact site on the said second movable contact component and said fixedly contact-making surface Elastic Contact.
5. switch module as claimed in claim 1 is characterized in that: said fixedly contact-making surface all is the plane.
6. switch module as claimed in claim 4 is characterized in that: the thickness of the said first movable contact component is greater than the thickness of the said second movable contact component.
7. switch module as claimed in claim 4 is characterized in that: the said first movable contact component and the said second movable contact component all are made of copper.
8. switch module comprises:
Housing;
First input part, it is used for being electrically connected with the positive pole of power supply and of negative pole;
Second input part, it is fixed with respect to described housing, and the one of which end is used for being electrically connected with another of the positive pole of power supply and negative pole;
The first inner efferent, it is fixed with respect to described housing, and it is connected with said first input part, and has the first inner output switching-over fixed contact;
The second inner efferent, it is fixed with respect to described housing, its input can with said second input part electric connection or the disconnection, its output has the second inner output switching-over fixed contact;
The first outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the first outside output switching-over fixed contact;
The second outside efferent, it is fixed with respect to said housing, and its output is used for and will be electrically connected by the electric equipment of this switch module control, and its input has the second outside output switching-over fixed contact; The first inner output switching-over fixed contact and the said second inner output switching-over fixed contact respectively have two branches and form U-shaped; The said first outside output switching-over fixed contact and the said second outside output switching-over fixed contact respectively have two branches, and a fixedly contact-making surface is respectively arranged in each branch of said each fixed contact;
The switching-over tumbler; Which is provided with first movable contacting device, second movable contacting device, the 3rd movable contacting device and the 4th movable contacting device; The input of described each movable contacting device and output comprise at least one movable contact site respectively; All has the movable contact-making surface that can contact on each movable contact site with said fixedly contact-making surface; Said switching-over tumbler can rotate between its primary importance and the second place; Consequently; First movable contacting device and said the 3rd movable contacting device can move between its primary importance and the second place with respect to said housing; Primary importance at said first movable contacting device and said the 3rd movable contacting device; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the input of said first movable contacting device and the input of the 3rd movable contacting device respectively with the U type branch of the said first inner output switching-over fixed contact on two fixedly contact-making surface contact; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the output of said first movable contacting device and the output of said the 3rd movable contacting device respectively with two branches of the said second outside output switching-over fixed contact on said fixedly contact-making surface contact; The second place at said first movable contacting device and said the 3rd movable contacting device; The said movable contact-making surface of the said movable contact-making surface of the input of said first movable contacting device and the input of said the 3rd movable contacting device still respectively with two branches of the said first inner output switching-over fixed contact of U-shaped on fixedly contact-making surface contact; The said movable contact-making surface of said at least one the movable contact-making surface of the output of said first movable contacting device and the input of said the 3rd movable contacting device respectively with two branches of the said first outside output switching-over fixed contact on fixedly contact-making surface contact; And the second and the 4th movable contacting device can move between its primary importance and the second place with respect to said housing; Said second and the primary importance of the 4th movable contacting device; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the input of said second movable contacting device and the input of said the 4th movable contacting device respectively with two branches of the said second inner output switching-over fixed contact of U-shaped on said fixedly contact-making surface contact; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the output of said second movable contacting device and the output of said the 4th movable contacting device respectively with two branches of the said first outside output switching-over fixed contact on said fixedly contact-making surface contact; Said second and the second place of the 4th movable contacting device; Said at least one movable contact-making surface of said at least one the movable contact-making surface of the input of said second movable contacting device and the input of said the 4th movable contacting device still respectively with two branches of the said second inner output switching-over fixed contact of U-shaped on fixedly contact-making surface contact, said at least one movable contact-making surface of said at least one the movable contact-making surface of the output of said second movable contacting device and the output of said the 4th movable contacting device contacts with the said second outside fixedly contact-making surface of exporting the fixed contact that commutates.
9. switch module as claimed in claim 8 is characterized in that: described at least one movable contact site is at least two movable contact sites.
10. switch module as claimed in claim 9; It is characterized in that: described each movable contacting device all comprises at least two movable contact components that are fixed together and can move together; Said movable contact site is located on the said movable contact component, and at least two said movable contact sites are arranged on each movable contact component.
11. switch module as claimed in claim 8 is characterized in that: the movable contact-making surface of said at least one movable contact site is a cambered surface.
12. switch module as claimed in claim 10; It is characterized in that: said at least two movable contact components comprise at least one first movable contact component and at least one second movable contact component bigger than the first movable contact component elasticity; Movable contact site on the said first movable contact component stretches out on the body of the said first movable contact component; Movable contact site on the said second movable contact component stretches out on the body of the said second movable contact component; The length that the length that movable contact site on the said second movable contact component stretches out is stretched out greater than the movable contact site on the said first movable contact component; With the movable contact-making surface that guarantees the movable contact site on the said first movable contact component and corresponding said fixedly contact-making surface stably rigidity contact the movable contact-making surface of the movable contact site on the said second movable contact component and said fixedly contact-making surface Elastic Contact.
13. switch module as claimed in claim 8 is characterized in that: said fixedly contact-making surface all is the plane.
14. switch module as claimed in claim 12 is characterized in that: the thickness of the said first movable contact component is greater than the thickness of the said second movable contact component.
15. switch module as claimed in claim 12 is characterized in that: two branches of the said first outside efferent couple together the formation U-shaped, and two branches of the said second outside efferent couple together the formation U-shaped.
16. switch module as claimed in claim 8; It is characterized in that: said first movable contacting device and said second movable contacting device are positioned at the same side of said switching-over tumbler; Said the 3rd movable contacting device and said the 4th movable contacting device are positioned at the same side of said switching-over tumbler, residing that side of said first and second movable contacting devices and residing that parallel sided of said third and fourth movable contacting device and relative.
17. switch module as claimed in claim 8 is characterized in that: the output of the said first outside efferent and the said second outside efferent respectively has two lead-out terminals.
18. switch module as claimed in claim 8 is characterized in that: the output of the said first outside efferent and the said second outside efferent respectively has a lead-out terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102093014A CN101699593B (en) | 2006-01-27 | 2006-01-27 | Switch component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102093014A CN101699593B (en) | 2006-01-27 | 2006-01-27 | Switch component |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100024020A Division CN100573762C (en) | 2005-04-18 | 2006-01-27 | Switch module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101699593A CN101699593A (en) | 2010-04-28 |
| CN101699593B true CN101699593B (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102093014A Active CN101699593B (en) | 2006-01-27 | 2006-01-27 | Switch component |
Country Status (1)
| Country | Link |
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| CN (1) | CN101699593B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515133B (en) * | 2012-06-19 | 2015-11-25 | 上海拜骋电器有限公司 | Switch |
| CN102723217A (en) * | 2012-07-09 | 2012-10-10 | 张家港华捷电子有限公司 | Switch reversing device in electric tool |
| CN103198937B (en) * | 2013-03-08 | 2015-10-28 | 上海拜骋电器有限公司 | The interlock compound brake structure of switch, switch and electric tool |
| CN107515352A (en) * | 2017-09-06 | 2017-12-26 | 国网江苏省电力公司徐州供电公司 | Grounding switch ground detection device |
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| GB1269485A (en) * | 1968-07-29 | 1972-04-06 | Skil Nl N V | Electric switch |
| US3755640A (en) * | 1972-07-27 | 1973-08-28 | Skie Corp | Reversing switch for a power tool with separate selectively movable contact carriers |
| US3814886A (en) * | 1973-02-12 | 1974-06-04 | Cutler Hammer Inc | Miniature electrical reversing switch mounted on trigger operated switch for hand-held tools |
| US5084598A (en) * | 1987-10-21 | 1992-01-28 | Omron Corporation | Electric switch for a power tool |
| CN1239349A (en) * | 1998-05-12 | 1999-12-22 | 易通公司 | Variable speed control switch for direct current electric power tools |
| CN2694454Y (en) * | 2004-04-02 | 2005-04-20 | 上海拜骋电器有限公司 | Electric tool switch with auxiliary contact |
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|---|---|---|---|---|
| GB1269485A (en) * | 1968-07-29 | 1972-04-06 | Skil Nl N V | Electric switch |
| US3755640A (en) * | 1972-07-27 | 1973-08-28 | Skie Corp | Reversing switch for a power tool with separate selectively movable contact carriers |
| US3814886A (en) * | 1973-02-12 | 1974-06-04 | Cutler Hammer Inc | Miniature electrical reversing switch mounted on trigger operated switch for hand-held tools |
| US5084598A (en) * | 1987-10-21 | 1992-01-28 | Omron Corporation | Electric switch for a power tool |
| CN1239349A (en) * | 1998-05-12 | 1999-12-22 | 易通公司 | Variable speed control switch for direct current electric power tools |
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| CN101699593A (en) | 2010-04-28 |
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