CN1301524C

CN1301524C - Electric circuit control protector

Info

Publication number: CN1301524C
Application number: CNB2004100079857A
Authority: CN
Inventors: 游聪谋
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-23
Filing date: 2004-03-23
Publication date: 2007-02-21
Anticipated expiration: 2024-03-23
Also published as: CN1674189A

Abstract

The present invention relates to a circuit control protector which actuates a link rod piece synchronously by pushing a button to swing to push and pull a contact piece to bounce, so that a circuit forms an ON state or an OFF state. The present invention is characterized in that a connection part of the button is embedded in a buckle hole of the link rod piece correspondingly; the buckle hole is provided with an extending slot; one end of the link rod piece is movably connected to the contact piece. When the button is in the ON position of the circuit, an open end of the extending slot of the link rod piece corresponds to the connection part of the button, and the extending slot provides a free shift path to make the extending slot and the connection part of the button capable of freely shifting correspondingly. When the current is overloaded, the contact piece is deformed by heating and reversely bounces, the contact piece pushes the link rod piece to shift without the obstacle of the connection part and the buckle hole of the button, and the contact piece can easily bounce to form the complete OFF state of the circuit and ensure the safety of electricity utilization.

Description

Circuit-controllable protector

Technical field

The invention relates to a kind of circuit-controllable protector.Be between button and interlock rod member, be provided with one and extend the path that groove provides free displacement; When current overload, the contact chip temperature distortion is oppositely bounced, contact chip promotes this interlock rod member displacement, extension groove by this interlock rod member, the interlock rod member is able to respect to the free displacement of button, be not subjected to the obstruction of this button connecting portion and button hole, contact chip is able to escape successfully, forms outage fully (OFF) state of circuit loop.

Background technology

The operation of power control switch mainly is to carry out energising (ON) and outage (OFF) two kinds of actuating travels of current circuit.Except carrying out energising (ON) and outage (OFF) two kinds of functions, existing many constructions of switch also have the function of current overload automatic escape outage when overheated, avoid the fuse of current circuit when current overload or circuit breaker can not real time reaction to cut off the power supply or the danger of escape.

The patent of existing various known power source control switchs is as the United States Patent (USP) the 5th, 262 of applicant's application, No. 748, other United States Patent (USP) the 4th, 167, No. 720, the 4th, 937, No. 548, the 5th, 223, No. 813, the 5th, 451, No. 729, the 5th, 558, No. 211 ... etc., but aforementioned patent all has common drawback as follows:

1. the assembly of interlock is various, and interlock stroke complexity produces the non real-time action relationships between button and terminal assembly, has also improved manufacturing cost.

2. action relationships is uncertain, increases the fault chance, is unfavorable for the safety that the consumer uses.

3. flow through live and pass by when hot, contact flat spring escape outage in real time or escape are incomplete, make circuit still be current conductive state, and circuit continues overheated and causes danger.

4. when the current overload circuit was overheated, contact flat spring was half escape state, rebound "on" position more again when contact flat spring cools off, and the formation spark that continues to switch on repeatedly, cuts off the power supply causes danger; And the electronics in the current circuit, electric equipment be because of switching on repeatedly, cut off the power supply, and shut down or can't normal operation, shortens useful life, even infringement and can't using.

For effectively carrying out the interlock action relationships of power control switch intraware really, simplify the power control switch assembly to reduce cost of manufacture, guarantee to cut off the power supply to strengthen Electrical Safety in current overload real time reaction escape, the lasting research improvement of power control switch structure becomes manufacturer's important common issue.

Summary of the invention

The invention reside in that the assembly that solves known power source control switch serial verb construction is complicated, cost of manufacture is high, continuous action relation for indirectly, the reaction of interlock stroke reaches power control switch many shortcomings of fault in operation slowly, particularly solving the known power source control switch when current overload is overheated, escape outage (OFF) or escape are incomplete in real time, cause circuit to continue the superheat state of circulation; And solve overload when overheated, and contact flat spring is half escape state, rebound "on" position more again when contact flat spring cool off, and the formation spark that continues to switch on repeatedly, cuts off the power supply causes the problem of danger.

The present invention is a kind of circuit-controllable protector; its main purpose is; button hole at the interlock rod member is provided with the extension groove; when button is positioned at energising (ON) position; this interlock rod member and button have the path of one section relative free displacement; during current overload; the contact chip temperature distortion is oppositely bounced and is promoted the displacement of interlock rod member; extension groove by this interlock rod member; make the interlock rod member be able to not be subjected to the obstruction of button and interlock rod member button hole with respect to the free displacement of button, contact chip is able to escape successfully; form the outage fully (OFF) of circuit loop, reach the purpose of Electrical Safety.

Still a further object of the present invention is, when the current overload circuit was overheated, contact flat spring reacted escape rapidly, and was complete escape off-position, avoid contact flat spring when cooling rebound "on" position more again, can not continue to switch on repeatedly, cut off the power supply forms the contact spark and causes danger.

Extension purpose of the present invention is, simplifies the assembly of the whole interlock of power control switch, and assembling can effectively reduce manufacturing cost easily, and prolongs the useful life of power control switch structure, reduces consumer's expenditure.

The technological means that the present invention deals with problems is a kind of circuit-controllable protector, consists predominantly of a box body, a button, a contact chip, an interlock rod member; It is characterized in that: the corresponding embedding group of this button connecting portion is in the button hole of interlock rod member, this button hole is provided with the extension groove, one end of interlock rod member is movably connected on contact chip, when this button is positioned at the position of circuit turn-on (ON), the opening of the extension groove of this interlock rod member is corresponding to the connecting portion of button, this extension groove provides the path of one section free displacement, makes the extension groove be able to relative free displacement with button; When current overload, the contact chip temperature distortion is oppositely bounced, contact chip promotes this interlock rod member displacement, extension groove by this interlock rod member, the interlock rod member is able to respect to the free displacement of button, be not subjected to the obstruction of button and button hole, contact chip is able to escape successfully, forms outage fully (OFF) state of circuit loop.

Description of drawings

Fig. 1 is the assembled sectional view of the embodiment of the invention, and it shows outage (OFF) state of the embodiment of the invention;

Fig. 2 is the assembled sectional view of the embodiment of the invention, and it shows energising (ON) state of the embodiment of the invention;

Fig. 3 is the assembled sectional view of the embodiment of the invention, and it shows the embodiment of the invention when energising (ON) situation current overload, and contact chip back-flexing escape promotes the free displacement of interlock rod member, becomes outage (OFF) state;

Fig. 4 is the part three-dimensional exploded view of the embodiment of the invention, the relative assembled state of its Show Button, interlock rod member and contact chip.

Among the figure

1 box body, 11 first contact terminals

12 second contact terminals, 121 second contact protuberances

13 nose bars

2 buttons, 21 connecting portions (rod member)

3 contact chips, 31 first contacts

4 interlock rod members, 41 clip slots

42 button holes 43 extend groove

Embodiment

For describing purpose of the present invention, feature and effect in detail, by following preferred embodiment, conjunction with figs. is described in detail as follows to the present invention:

Shown in 1-3 figure, be the assembled sectional view of the embodiment of the invention, contact chip back-flexing escape became outage (OFF) state when it showed the outage (OFF), energising (ON) of the embodiment of the invention and current overload; A kind of circuit-controllable protector of the present invention, it consists predominantly of a box body 1, a button 2, a contact chip 3, an interlock rod member 4; Wherein,

This box body 1 is a hollow form, its top is provided with an opening, the bottom surface group of box body 1 is established at least two contact terminals, be two contact terminals in the present embodiment, be respectively first,

second contact terminal

11,12, the fixing group of first contact terminal, 11 top kinks is established an end of contact chip 3, and second contact terminal, 12 tops are combined with one second contact 121; Be provided with a nose bar 13 in box body 1 inside in addition, this nose bar 13 contacts with the side of interlock rod member 4 is movable, in order to the direction of displacement of guiding interlock rod member 4.

This button 2 is a calyptra, and button 2 is articulated in the opening of box body 1 top versatilely, and making button 2 be able to the articulated section is that swing in the axle center; Button 2 is established a junction 21, in embodiments of the present invention the rod member that extends for button 2 inner transverse of this connecting portion 21; Connecting portion 21 corresponding activity embedding groups are in the button hole 42 of interlock rod member 4, and this button hole 42 stretches out to be provided with and extends groove 43.

This contact chip 3 generally is a rubber-like metal lamellar body, and it forms the curved arc shape, can beat distortion back-flexing and bounce to another side when contact chip 3 is heated to the two side faces of lamellar body; One end of contact chip 3 fixedly is mounted on first contact terminal 11, and the other end is a free end, which is provided with first contact 31; This contact chip 3 also can be the composition metal thin slice.

This interlock rod member 4 is a rectangular en plaque, and a clip slot 41 is established in the one end, establishes a button hole 42 on the plate, and this button hole 42 stretches out to be provided with and extends groove 43, and interlock rod member 4 one sides face the medial surface by box body 1; The clip slot 41 activity clampings of interlock rod member 4 one ends are connected in the free end of contact chip 3, and the connecting portion (horizontal rod member) 21 of activity embedding group button 2 in the button hole 42 of interlock rod member 4 is with reference to figure 4.

The present invention please refer to Fig. 1 in general energising (ON) enforcement with outage (OFF), when the right-hand member of pressing button 2 downward, these button 2 left ends upwards, interlock rod member 4 is pulled upwardly contact chip 3, and first contact 31 on the contact chip 3 is separated with second contact 121, becomes outage (OFF) state.

Downward when the left end of pressing button 2, interlock rod member 4 is passed contact chip 3 downwards, and first contact 31 on the contact chip 3 is contacted with second contact 121 downwards, becomes energising (ON) state, as Fig. 2.

Pressing button 2 swings so repeatedly make interlock rod member 4 and button 2 synchronization actions, and the 3 upper and lower bendings of interlock rod member 4 push-and-pull contact chips are beated, and make circuit loop form energising (ON) or outage (OFF) state.

The invention is characterized in: the connecting portion of this button 2 (horizontal rod member) 21 corresponding embedding groups are in the button hole 42 of interlock rod member 4, this button hole 42 is provided with and extends groove 43, the clip slot 41 activity clampings of interlock rod member 4 one ends are connected in contact chip 3, when button 2 is positioned at the position of circuit turn-on (ON), ginseng Fig. 2, Fig. 3, the opening of the extension groove 43 of this interlock rod member 4 is corresponding to the connecting portion 21 of button 2, make this extension groove 43 that the path of 21 1 sections free relatively displacements of connecting portion of button 2 is provided, extend groove 43 and be able to relative free displacement, do not stop mutually with button 2; During current overload, contact chip 3 temperature distortions are oppositely bounced, contact chip 3 directly promotes these interlock rod member 4 displacements, be not subjected to the obstruction of these button 2 connecting portions 21 and button hole 42, contact chip 3 is able to successfully directly escape, first contact 31 on the contact chip 3 is separated with second contact 121, form outage fully (OFF) the state person of circuit loop, as shown in Figure 3.

Start process simplification of the present invention, rapid; When current overload, be not subjected to the obstruction of switch module start, contact chip 3 is able to escape successfully, forms outage fully (OFF) state of circuit loop, really can reach the fail safe of electricity consumption.

Below the present invention has been done detailed description, the above only is preferred embodiment of the present invention, can not limit scope of the invention process.Be that all equalizations of doing according to the present patent application scope change and modify etc., all should still belong to scope of patent protection of the present invention.

Claims

1. circuit-controllable protector, it consists predominantly of a box body, a button, a contact chip, an interlock rod member; Wherein,

This box body is a hollow form, and its top is provided with an opening, and the bottom surface group of box body is established at least two contact terminals;

Be articulated in to this button activity the opening of box body top, button is that swing in the axle center with the articulated section; Button is provided with a junction, and the corresponding activity embedding of this connecting portion group is in the button hole of interlock rod member;

This contact chip is a rubber-like metal lamellar body, and it forms the curved arc shape, can beat distortion back-flexing and bounce to another side when contact chip is heated to the two side faces of lamellar body; One end of contact chip fixedly is mounted on the contact terminal, and the other end is provided with first contact;

This interlock rod member one end activity clamping is connected in contact chip, and the interlock rod member is provided with a button hole, and this button hole extends one and extends groove;

It is characterized in that: the corresponding embedding group of the connecting portion of this button is in the button hole of interlock rod member, this button hole is provided with the extension groove, interlock rod member one end is movably connected on contact chip, when button is positioned at the position of circuit turn-on, the opening of the extension groove of this interlock rod member is corresponding to the connecting portion of button, this extension groove provides the path of one section free relatively displacement of connecting portion of button, makes the extension groove be able to relative free displacement with button, does not stop mutually; During current overload, the contact chip temperature distortion is oppositely bounced, and contact chip directly promotes this interlock rod member displacement, is not subjected to the obstruction of this button connecting portion and button hole, and contact chip is able to successfully directly escape, forms the complete off-position of circuit loop.

2. circuit-controllable protector as claimed in claim 1; it is characterized in that at least two contact terminals that this box body is provided with; be respectively first, second contact terminal, the first contact terminal top fixing group of kink is established one of contact chip end, and second contact terminal top is combined with one second contact.

3. circuit-controllable protector as claimed in claim 1 is characterized in that this contact chip is the composition metal thin slice.

4. circuit-controllable protector as claimed in claim 1 is characterized in that this interlock rod member is an en plaque, and a clip slot is established in the one end, and this clip slot activity clamping is connected in the free end of contact chip.

5. circuit-controllable protector as claimed in claim 1 is characterized in that this box body inside is provided with a nose bar, and this nose bar contacts with the side of interlock rod member is movable, in order to the direction of displacement of guiding interlock rod member.