|Publication number||CN1421887 A|
|Application number||CN 02152755|
|Publication date||4 Jun 2003|
|Filing date||27 Nov 2002|
|Priority date||27 Nov 2001|
|Also published as||CN1233003C, DE60218405D1, DE60218405T2, EP1315186A1, EP1315186B1, US6664490, US20030098226|
|Publication number||02152755.5, CN 02152755, CN 1421887 A, CN 1421887A, CN-A-1421887, CN02152755, CN02152755.5, CN1421887 A, CN1421887A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (3), Classifications (18), Legal Events (3)|
|External Links: SIPO, Espacenet|
本发明涉及一种开关的接触机构及电气开关，详细地是涉及一种电动工具用的弹簧翻转型开关的接触机构及电气开关。 The present invention relates to a switch mechanism and electrical switch contacts, in detail, to a power tool with a spring flip type switch mechanism and electrical switching contact.
过去，在进行大电流的开闭的电动工具用的开关中多使用弹簧翻转型接触机构。 In the past, during the high-current switching power tool with a switch to turn the multi-use spring contact mechanism transition. 弹簧翻转型接触机构由于在接通/断开时可以获得轻快的变换感觉、并且可以实现迅速接通、迅速断开，适用于大电流的开闭，而且也可适用于AC/DC共用的开关。 Since the flip type spring contact means when the on / off feeling can be obtained light conversion, and can be achieved rapidly switched, the rapid disconnect, suitable for high current opening and closing, but is also applicable to AC / DC common switch .
但是，弹簧翻转型接触机构由于其接点的接触是速接合速断开，因此接点的跳动多，特别是在接通时由于突然流入电流，由于该跳动而容易产生电弧，接点的消耗也剧烈，因此有缩短开关的寿命的缺点。 However, because of the spring mechanism flip type contact contacts the contact speed is the speed of engagement is disconnected, and therefore the contact beating more, especially when switched on due to the sudden inflow of the current, due to the jitter easily arcing contacts consumption intense, therefore shorten the life of the switch disadvantages.
另外，在现有技术中，存在着具有弹簧翻转机构、产生接触压力的按压弹簧、可动接点的接触机构。 Further, in the prior art, there is a pressure spring having a spring snap mechanism, to produce the contact pressure of the movable contact of the contact mechanism. 该接触机构在从接通向断开的弹簧翻转机构即将翻转前的状态下，在受到弹簧的影响进行翻转前有时其接触压力大幅度地减少，在这时，当对开关施加振动时，由于接触压力小而产生电弧，存在大幅度消耗接点的缺点。 The contact mechanism from ON to OFF state of the spring is about to flip the front of the inverting mechanism, the spring will be affected in some cases significantly reduced before the reversal of their contact pressure, in this case, when vibrations are applied to the switch, owing to small arcing contact pressure, contact consume substantial disadvantage.
作为消除弹簧翻转型接触机构的上述缺点的接触机构，公知的有由德国专利公报DE19930558A1公开的开关。 As the contact mechanism to eliminate the above drawbacks of the spring contact mechanism of the flip type, there is known from German Patent Publication DE19930558A1 discloses a switch. 以下使用图18～图25对该发明的开关进行若干说明。 Below using Figs. 18 to 25 of this invention will be a number of switch described.
德国专利的开关1大致由壳体2、基座3、盖4、固定接点5、电气连接部6、滑动部件7、开闭接点8(参照图19)、作动元件9、第一弹簧10、开闭接点结合构件11a、11b(参照图21)、第二弹簧12、滑动构件13、压缩弹簧28(参照图19)构成。 German Patent switch 1 substantially by the housing 2, the base 3 and the cover 4, the fixed contacts 5, the electrical connection portion 6, the slide member 7, switching contacts 8 (see FIG. 19), the actuation element 9, the first spring 10 , switching contacts the coupling member 11a, 11b (see FIG. 21), the second spring 12, the slide member 13, the compression spring 28 (see FIG. 19) constituted.
如图18所示，在壳体2的底部配设着4个固定接点5，这些固定接点5通过对应的电气连接部9与电源导线连接。 18, at the bottom of the housing 2 is disposed a four fixed contacts 5, 9 connected to the fixed contact 5 by respective electrical connection portion and the power conductors.
如图19及图20所示，滑动部件7处于壳体2之中，在其下面上与固定接点相面对地配设四个开闭接点8。 19 and 20, the slide member 7 in the housing 2 being, on its lower fixed contact disposed to face each of the four switching contacts 8. 在开闭接点8的后部配设压缩弹簧28。 8 at the rear of the opening and closing of the contact compression spring 28 is disposed.
在滑动部件7的上面上具有第二弹簧12、收容第二弹簧12并可运动的托架16、对于托架16产生作用的止挡件19a、19b、可以与第二弹簧12结合地设置滑动构件13的凸起15a、15b的导引件14及开口部17(参照图18)。 7 on the upper surface of the slide member 12 having a second spring, the second spring 12 and the bracket accommodating movement 16, the stopper 19a of the bracket 16 have an effect, 19b, the second spring 12 may be slidably disposed in combination protrusions 15a, 15b of the guide member 14 and the opening 13 of portion 17 (see FIG. 18).
该滑动部件7与滑动构件13一起运动，可以在图22所示的固定接点5与开闭接点8相离开的开关断开位置与图23所示的固定接点5与开闭接点8接触着的开关接通位置这两个位置之间移动。 The slide member 7 moves together with the slide member 13, as shown in Fig. 23 may be in fixed contact 22 shown in FIG. 5 and the switching contacts 8 to leave the switch off position with the fixed contacts 5 and 8 contact with the switching contacts of switch is turned to move between the positions of both positions.
第二弹簧12是压缩弹簧。 The second spring 12 is a compression spring. 在进行切换时，通过张紧到到达切换点而产生与滑动部件7的运动方向对抗的复位力，在越过切换点时，产生与滑动部件7的运动方向同方向的力。 During switching, to generate a reset force and direction of movement of the slide member 7 against the tension to reach through the switching point, the switching point is crossed, the direction of movement in the same direction of the force generating the sliding member 7.
第一弹簧10是一种压缩点弹簧，具有形成为U字形的腿部20a、20b和形成在两端的向左右突出的突出部21。 The first spring 10 is a compression spring point, formed in a U-shape having a leg portion 20a, 20b formed in the left and right ends of the projecting portion 21. 第一弹簧10的弹簧常数选定为第一弹簧10在切换点的力与全压缩弹簧28的力的总和。 The spring constant of the first spring 10 is selected to be 10 at the switching point the spring force of the first sum and total of the force of compression spring 28.
如图21所示，开闭接点结合构件11a、11b具有从壳体2的内面两侧突出的突起22。 21, the switching contacts in FIG binding member 11a, 11b from both sides of the casing 2 having an inner surface of the projection 22 projecting. 突起22形成为非对称的形状。 The projection 22 is formed asymmetrical shape.
弹簧10与开闭接点结合构件11a、11b协同如下地进行动作。 Spring 10 in combination with a switching contact member 11a, 11b synergistic operates as follows. 即，当滑动部件7由作动元件9作动进行运动时，弹簧10与滑动部件7的运动方向对抗地积蓄能量，将该对抗力一直保持到能量成为最大、即压缩点。 That is, when the slide member 7 by the actuating member 9 actuating motion, the direction of movement of the spring 10 against the slide member 7 to the accumulated energy, the energy against the force is maintained until the largest, i.e., the compression point. 在压缩点(切换点)，积蓄在弹簧10上的能量由于急剧地被释放，滑动部件7以急变运动的形式在上述两位置之间进行切换。 In the compression point (switching point), the savings in energy due to the spring 10 is abruptly released, the slide member 7 in the form of rapid change in the movement between the two positions switch.
滑动构件13与作动元件9连接着。 The sliding member 13 is connected to the actuating element 9. 通过推压作动元件9，滑动构件13后退，通过脱离作动元件9，滑动构件13前进。 By pushing actuation member 9, the sliding member 13 is retracted, by departing from the actuating member 9, the sliding member 13 forward.
滑动元件13由收容在空腔27内的第三弹簧24和止挡件25、配置在凸起15a、15b上的止挡件18a、18b构成。 The sliding member 13 accommodated within the cavity 27 by the third spring 24 and the stopper 25, disposed in the projection 15a, the stopper 18a 15b on, 18b constitute.
凸起15a、15b通过滑动部件7的导引件14作用于第二弹簧12的端部(参照图20)。 Protrusions 15a, 15b by sliding the guide member 14 in the end portion 7 the role of the second spring 12 (see Fig. 20).
滑动构件13的止挡件18a、18b与滑动部件7的止挡件19a、19b之间具有运动间隙，由此，在使滑动构件13作用时，首先进行向第二弹簧12的作用，在运动间隙消失了后，滑动部件7才可进行运动。 The sliding member of the stopper member 18a 13, 18b and the sliding member stopper 19a 7, with movement clearance, whereby, when the effect of the slip member 13, the first action carried out between the second spring 12 to 19b in motion After the disappearance of the gap, slide member 7 before exercise.
以下，对开关1的接通、断开动作进行说明。 Hereinafter, the switch 1 is turned on, opening operation is described.
在开关1处于图22所示那样的断开的状态时，当由手动推压作动元件9时，滑动构件13通过凸起15a作用于第二弹簧12的左端，使第二弹簧12张紧。 When switch 1 is in the OFF state as shown in FIG. 22, when pressed by the manual actuation element 9, the slide member 13 by the projections 15a acting on the left end of the second spring 12, the second tensioning spring 12 . 在上述运动间隙消除了后，止挡件18与止挡件19a啮合，其结果，滑动部件7朝向右方向的接通位置移动。 After the above-described motion gap eliminates the stopper 18 and the stopper 19a engaging stopper, as a result, the rightward direction toward the on position 7 of the slide member to move.
如图22所示，该移动基于凸起22的平坦侧面29a与第一弹簧10的逆向的力在到达切换点之前以微速进行。 22, the mobile 22 based on the projection 29a of the flat side and reverse force of the first spring 10 before reaching the switching point to perform fine speed. 克服了切换点后，积蓄在第一弹簧10与第二弹簧12上的能量瞬间被释放，其结果，滑动部件7瞬时向右方向移动，成为图23所示的开关接通状态。 After overcoming the switching point, the first spring 10 and stored in the instant energy of the second spring 12 is released, as a result, the slide member 7 to move in the right direction instantaneously, become the switch 23 on state shown in Fig. 而且，由于固定接点5与开闭接点8的接触，压缩弹簧28(参照图20)成为张紧状态。 Further, since the fixed contacts 5 and the switching contacts of the contact 8, the compression spring 28 (see FIG. 20) becomes tensioned state.
为了进行开关断开，当从作动元件9脱开手时，滑动构件13在第三弹簧24(参照图20)的作用下被复位。 In order to switch off, when the actuating element 9 is disengaged hand, the sliding member 13 is reset under the action of the third spring 24 (see FIG. 20). 在滑动构件13的复位运动时，凸起15b作用于第二弹簧12的右侧端部，在活用了运动间隙后，使第二弹簧12张紧。 When the slide member 13 of the return movement, the projection 15b acts on the right end portion of the second spring 12, in the utilization of the space after the movement, the second spring 12 is tensioned. 这时，滑动部件7只进行蛇行而不进行运动，如图23所示地继续维持固定接点5与开闭接点8的接触状态。 At this time, the slide member 7 performed without meandering motion, as shown in Figure 23 to continue to maintain the fixed contact 5 with a switching contact 8 of the contact state.
其后，滑动部件7在凸起22的陡峻的侧面29b与第一弹簧10的逆向的力的作用下而稍微向左方向运动。 Thereafter, the slide member 7 in the steep side 22 of the projection 29b and reverse force under the action of a first spring 10 and slightly to the left direction. 但是，开闭接点8由于压缩弹簧28松弛着而维持与固定接点5接触的状态，该状态如图25所示一直维持到到达切换点。 However, switching contacts 8 by the compression spring 28 while maintaining the relaxed state the contact with the fixed contact 5, the state shown in Figure 25 has been maintained to reach the switching point.
在克服了切换点后，积蓄在第一弹簧10与第二弹簧12上的能量短时间被释放，滑动部件7瞬时向左方向移动，其结果，开闭接点8瞬时间从固定接点5离开，成为图22所示那样的开关断开状态。 In overcoming the switching point, the accumulated energy in the first spring 10 and second spring 12 is released a short time, the slide member 7 to move leftward instantaneously as a result, switching contacts 8 instantaneously separated from the fixed contact 5, becomes as shown in FIG. 22 switch-off state.
但是，上述德国专利的开关1，由于为了抑制接点的跳动而使用压缩弹簧(第一弹簧10)进行接通时的迟缓接触，断开时的瞬间释放，由于弹簧10的品质的偏差或开闭接点结合构件11a、11b的凸起22的磨损而使接通断开的时刻产生变化，由此存在难以作出均一的开关性能的问题。 However, the above-mentioned German Patent switch 1, in order to suppress the contact of the jitter due to the use of a compression spring (first spring 10) is turned on when the delayed contact, disconnection of instant release, due to the deviation of the quality of the spring 10 or the opening and closing contact bonding members 11a, 11b of the protrusion 22 of the wear leaving the on-off timing generating change, whereby there is a problem difficult to make uniform the switching performance.
因此，本发明的目的是提供一种解决了上述开关的缺点、在接通时跳动少、而且在断开时可以瞬时的隔断的高额定电流、高寿命的AC/DC共用的开关的接触机构。 Accordingly, an object of the invention is to provide a solution to the drawbacks of the switch, at least in the on beating, the contact mechanism of a switch and when disconnection can instantaneously cut off the high-current rating, high life AC / DC common .
为了解决上述课题，本发明的开关的接触结构是弹簧翻转型开关接触机构，它具有：固定在壳体上的固定接点、具有与该固定接点接触/分离的可动接点及从后方推压可动接点的推压弹簧的作动器、驱动该作动器的可自由转动的翻转构件、一端连接在该翻转构件上、另一端与插棒结合的螺旋状的具有翻转点的翻转弹簧、驱动该插棒的操作部，通过推压/释放上述操作部使上述可动接点与上述固定接点接触/分离而使开关接通/断开。 In order to solve the above problems, the switch contact structure of the present invention is a flip type switch spring contact mechanism, having: a housing fixed to the fixed contact, the fixed contact has a contact / separation of the movable contact and can be pushed from the rear the movable contact pressing spring actuator, the actuator drive member rotatably flipping one end connected to the inverting member and the other end of the rod having a combination of helical springs rollover point inversion driving The plunger of the operation portion, by pressing / releasing said operating portion so that said movable contact with said fixed contact / separation leaving the switch is turned on / off.
本发明的开关的接触机构在开关接通时，在翻转点前使作动器运动一定量来缩小接点间隔，然后通过上述翻转构件翻转使上述可动接点急速且确实地与上述固定接点接触。 Switch contact mechanism of the present invention, when the switch is turned on, so that at the point before the reversal movement of the actuator to reduce the amount of contact interval, then flipped so that the movable contact rapidly and reliably in contact with the fixed contact through said reversible member.
可动接点和固定接点由于已经充分接近着，由于最后的快速接合引起跳动的程度也少。 Movable contact and the fixed contact due to the already sufficiently close, due to the final rapid engagement degree of beating causes less.
本发明的开关的接触机构，在开关断开时，在上述翻转点前，强制地停止上述作动器的运动，其后在翻转之后，通过解除上述作动器的锁定而瞬时地使上述可动点从上述固定点离开。 Switch contact mechanism of the present invention, when the switch is turned off before said turnover point, forcibly stopping the movement of said actuator, after subsequent inversion, by releasing the lock actuator can be instantaneously causing said Fixed point out from the fixed point. 这时，由于直到越过翻转弹簧的翻转点之前由于积蓄着充分的弹簧能量，可动接点从固定接点离开的速度极快，另外，在翻转点紧接着的前边由推压弹簧的弹力将翻转构件推回，接点的接触压力降低，接触也不会不稳定。 In this case, due to the spring energy savings are substantial, before the movable contact over the reverse spring until inversion point away from the fixed contact fast, Further, in the rollover point immediately in front of the pressing force of the spring by the flip member pushed back, the contact pressure to reduce contact, the contact will not be unstable.
另外，本发明的开关的接触机构具有形成在上述翻转构件上的小齿轮和形成在上述作动器上的齿条部。 In addition, the switching mechanism of the present invention has a contact formed on the reversible member of the pinion and the rack portion is formed on said actuator. 翻转构件的回转变换为作动器的水平运动。 Flip rotary member is converted into horizontal motion actuator.
另外，本发明的开关的接触机构具有设在上述插棒上的凸起和设在上述翻转构件上的凸起。 In addition, the switching mechanism of the present invention has a contact provided on said projection and a plunger provided on said reversible member projection.
在推压上述操作部时，上述插棒的凸起推压上述翻转构件的凸起，而反抗上述翻转弹簧的弹力使上述翻转构件回转，由此使上述作动器运动，使上述可动点接近固定点。 When the above pressing operation portion, the plunger pushes the inverted projection of the projection member, and against the force of the spring so that the above-described flip flip said rotating member, whereby movement of said actuator, so that the movable point close to the fixed point.
另外，本发明的开关的接触机构具有设在上述插棒的前端部的下面上的具有平缓的台阶的面、与上述台阶面经常接触的止挡构件、设在上述止挡构件上的钩部、将上述止挡构件向上方弹压的止挡弹簧、设在上述作动器上的凸起。 In addition, the switching contact mechanism of the present invention has a distal end disposed on the lower portion of said plunger having a gentle stepped surface, the stopper member and the regular contact with the stepped surface, provided on the stopper member hook portion , the said stop member upward biasing spring stopper, provided on said actuator projections. 上述止挡构件通过沿上述插棒的台阶面运动而将上述止挡构件的钩部与上述作动器的凸起的结合状态置于锁定状态或释放状态。 Said stop member by movement along the stepped surface of the rod and the projections of the hook portion of the engagement state with the stopper member of said actuator into the locked state or the release state.
本发明的开关的接触机构，在开关接通时，上述止挡构件上升，上述作动器的凸起越过上述止挡构件的钩部之上前进而使可动接点与固定接点接触，这时，上述钩部与上述作动器的凸起的结合状态成为锁定状态。 Switch contact mechanism of the present invention, when the switch is turned on, the stopper member moves up and the actuator projecting beyond the top of the hook portion of the stopper member forward leaving the movable contact with the fixed contact, then the hook portion and the projection of the actuator coupling state becomes a locked state. 在上述锁定状态下，通过使操作部向开关断开的方向运动，上述插棒运动，即使在越过了上述翻转弹簧的翻转点时，由于上述插棒的前端部的下面形状也若干时间不成为释放状态，在使上述插棒进一步向断开方向运动时，由于上述插棒的前端部的下面，止挡构件下降，上述锁定装置成为释放状态，其结果，上述作动器立刻移动，可动接点从固定接点瞬时离开，成为开关断开状态。 In the locked state, by switching off the operating section to the direction of movement of the plunger movement, even in the above-described reverse spring crossed inversion point, since the shape of the distal end portion of the following plunger has a number of time does not become the released state, so that said plunger further in the opening direction and movement, since the distal end portion of the following plunger and the stopper member decrease, said locking means become released state, as a result, the above-mentioned actuator to move at once, the movable Instantaneous contact from the fixed contact to leave the switch becomes OFF state.
本发明的电气开关由操作部、插棒、翻转构件、作动器、连接装置构成；上述操作部以一点为支轴进行回转操作；上述插棒与该操作部连接，与该操作部的回转操作连动沿直线方向运动；上述翻转构件夹设可以从上述插棒的直线运动获得赋能力的翻转弹簧，在沿上述插棒的运动的相反方向成为规定的赋能力以上时进行翻转动作，并且具有与该插棒的直线运动连动地进行转动动作的小齿轮；上述作动器具有上述小齿轮啮合的齿条，与上述小齿轮的转动动作连动进行直线动作；上述连接装置在壳体的长度方向两端具有固定接点，相面对地配置安装在上述作动器上的可动接点和上述固定接点，与由上述翻转构件进行翻转的动作连动进行电性连接。 The electrical switch of the present invention by the operating unit, the plunger, the reversible member, actuator, connecting means constituted; the operation unit to perform a bit rotation operation to the support shaft; said rod is connected to the operation portion, the operation portion of the rotation operation interlock motion along a rectilinear direction; said reversible member interposed available biasing the linear movement of said rod from the reverse spring, flip operation when said plunger in the opposite direction of movement becomes the predetermined energizing or more, and interlocking manner with the rotation operation of the linear motion of the plunger with the pinion gear; said actuator having a rack engaged with said pinion gear, and rotational operation of the pinion gear linearly moves in interlock; said connecting means in the housing both ends of the longitudinal direction with the fixed contacts, arranged to face the movable contact mounting on said actuator and said fixed contact, and be inverted by the inverting operation interlock member electrically connected.
这样，通过夹设翻转构件，借助操作部的操作使之成为储存规定的赋能力的状态，通过与齿条与小齿轮的关系、即所谓的用于储存规定的赋能力的构造的机构以转动运动和直线运动进行开关的变换，可以减少摩擦的结合状态，由此可以减少构件接触部的磨损，可以维持各零件的长耐久性。 Thus, by flipping member interposed, by means of operation of the operation unit making a predetermined biasing conditions of storage, and by the relationship between the rack and the pinion, i.e., the so-called structure means for storing a predetermined biasing force to rotate switching and linear motion conversion, friction bonding state can be reduced, thereby to reduce the wear member contact portion, can maintain a long durability of the parts.
附图说明 Brief Description
图1是本发明的开关的一实施例的分解立体图。 Figure 1 is an exploded perspective view of an embodiment of the switch of the present invention.
图2是同实施例的开关的侧视图。 Figure 2 is the same side view of an embodiment of the switch.
图3是同实施例的开关的立体图。 Figure 3 is a perspective view of the same embodiment of the switch.
图4是同实施例的开关的局部剖侧视图。 Figure 4 is a partial switch with an embodiment of the sectional side view.
图5是同实施例的开关的局部剖侧视图。 Figure 5 is a partial switch with an embodiment of the sectional side view.
图6是同实施例的开关的接触机构的局部剖侧视图。 Figure 6 is a partial switch with an embodiment of the sectional side view of the contact mechanism.
图7是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 Figure 7 is a partially different embodiment of the operation of the switching mechanism of the contact cross-sectional side view.
图8是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 Figure 8 is a partially different embodiment of the operation of the switching mechanism of the contact cross-sectional side view.
图9是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 9 is a diagram illustrating a partial operation of the switch with an embodiment of the sectional side view of the contact mechanism.
图10是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 Figure 10 is a partially different embodiment of the operation of the switching mechanism of the contact cross-sectional side view.
图11是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 FIG 11 is a view for explaining operation of the local switch with an embodiment of the sectional side view of the contact mechanism.
图12是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 Figure 12 is a partially with an embodiment of the operation of the switching mechanism of the contact cross-sectional side view.
图13是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 13 is a partially with an embodiment of the operation of the switching mechanism of the contact cross-sectional side view.
图14是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 Figure 14 is a partially with an embodiment of the operation of the switching mechanism of the contact cross-sectional side view.
图15是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 FIG 15 is a view for explaining operation of the local switch with an embodiment of the sectional side view of the contact mechanism.
图16是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 FIG 16 is a view for explaining operation of the local switch with an embodiment of the sectional side view of the contact mechanism.
图17是用于说明同实施例的开关的接触机构的动作的局部剖侧视图。 17 is a partially with an embodiment of the operation of the switching mechanism of the contact cross-sectional side view.
图18是作为现有技术例子的开关的说明图。 FIG 18 is a diagram illustrating an example of the prior art switch.
图19是作为现有技术例子的开关的说明图。 FIG 19 is a diagram illustrating an example of the prior art switch.
图20是作为现有技术例子的开关的说明图。 FIG 20 is a diagram illustrating an example of the prior art switch.
图21是作为现有技术例子的开关的说明图。 Figure 21 is a diagram illustrating an example of the prior art switch.
图22是作为现有技术例子的开关的说明图。 Figure 22 is a diagram illustrating an example of the prior art switch.
图23是作为现有技术例子的开关的说明图。 Figure 23 is a diagram illustrating an example of the prior art switch.
图24是作为现有技术例子的开关的说明图。 Figure 24 is a diagram illustrating an example of the prior art switch.
图25是作为现有技术例子的开关的说明图。 Figure 25 is a diagram illustrating an example of the prior art switch.
具体实施方式 DETAILED DESCRIPTION
以下，参照附图对本发明的开关的接触机构及电气开关的一实施例进行详细说明。 Hereinafter, referring to the drawings an embodiment of the present invention is a contact switch mechanism and electrical switching will be described in detail. 在说明中，将图中的左侧作为开关的前、将右侧作为开关的后，开关的接触机构由于是组成电气开关的部件，在以下作为开关的接触机构进行说明。 In the description, the left side of the figure as the front switches, the right side as the switch, the contact mechanism of a switch because it is composed of electrical switch parts, and in the following as the contact mechanism of a switch will be described.
本发明的使用接触机构的开关(电气开关)50如图1所示由操作部51、两个复位弹簧52、盖53、插棒54、导引板55、两片板56a、56b、翻转弹簧57、翻转构件58、止挡构件59、止挡弹簧60、作动器61、两个端子62、两个固定接点63、四个可动接点64a、64b、两个可动接片65、两个接压弹簧66、两个固定接点67、两个端子68、壳体69构成。 Switch (electrical switch) using a contact mechanism of the present invention 50 shown in Figure 1 by the operating portion 51, two return springs 52, cover 53, plunger 54, the guide plate 55, two plates 56a, 56b, the turnover spring 57, the reversible member 58, the stopper member 59, the stopper spring 60, the actuator 61, two terminals 62, two fixed contacts 63, four movable contacts 64a, 64b, two movable contact pieces 65, two a contact pressure spring 66, two fixed contacts 67, two terminals 68, 69 constituting the housing.
当如图1中用点划线所示的那样地组装上述各部件时，形成如图2～图6所示的开关。 When the dotted line in Figure 1 is assembled as shown in the above-described components, the switch is formed as shown in FIG. 2 to 6. 以下参照图1～图6对各部件的构成及功能以及各部件与其它的部件的关系进行说明。 1 to 6 and functions of the components constituting the various components and the relationship with other components will be described below with reference to FIG.
操作部51是由电气开关50的使用者的手进行操作的部分，若从上按压则使开关接通，若脱开手，则使开关断开。 Operation unit 51 is a part of an electrical switch operated by the user's hand 50, so that if it is pressed from the switch is turned on, if the hand is disengaged, then the switch off.
该操作部51由弯曲为手的形状的上面、与该上面一体成形的左右侧面及前面、开口的后面及下面、整体上形成为空心的壳体状。 Upper surface of the operation portion 51 by the bent shape of the hand, formed integrally with the upper right and left side and the front, rear and lower openings, formed as a hollow shell-like as a whole. 在操作部51的后部的左右侧面设有两个孔51a，通过与设在盖53的最后部的凸起53a结合而连接操作部51和盖53。 In operation of the rear left and right side portion 51 is provided with two holes 51a, through engagement with the lid portion 53 of the final projection 53a binding operation portion 51 is connected and the cover 53.
在操作部51的左右侧面上设有两个轴承孔51b，在其中自由转动地嵌合插棒54的转轴54e。 Is provided with two bearing holes 51b on the left and right sides of the operation unit 51, in which the rod is rotatably fitted in the shaft 54e 54. 另外，在操作部51的两侧面上为了使用方便而设有葫芦形的贯通孔51c。 Further, on both sides of the operation unit 51 is provided for ease of use and gourd-shaped through-hole 51c. 另外，在操作部51的上板内侧设有用于保持复位弹簧52的上端的两个凸起51d(参照图4)。 Further, in the inside of the upper plate 51 is provided with the operating portion of the return spring 52 for holding the upper end of the two projections 51d (see Fig. 4).
两个螺旋状复位弹簧经常地向其伸长方向赋予弹力，其上端由操作部51的凸起51d固定，其下端由设在后述的盖53的底部上的两个凸起53b固定。 Two helical return springs often impart its elastic elongation direction, the upper end portion 51 by the operating projection 51d is fixed, the two projections 53b is fixed at its lower end by a bottom provided in the cover 53 described later on.
如图2～图6更详细地表示的那样，盖53在功能上分为前半部和后半部。 As shown in Figure 2 to Figure 6 in more detail, the lid 53 is functionally divided into the front and back halves. 后半部如图4、图5所示地由凸起53b保持复位弹簧52的下端，同时具有与操作部51的后端部结合的功能。 After half 4, as shown in FIG. 5 by the projections 53b holding the lower end of the return spring 52, while having a rear end portion of the operation portion 51 of the binding function.
盖53的前半部具有壳体69的盖的作用，覆盖着插棒54。 The front cover 53 has a housing 69 of the cover halves role, covered with the plunger 54. 设在盖53的最前部的倾斜部53d，在其内部形成着用于使插棒54的尖的前端部54d前后运动的空间。 Provided in the cover 53 of the inclined portion 53d of the front portion, in its internal space is formed around the distal end portion 54d for causing the tip 54 of plunger movement.
如图2及图3所示，盖53的左右侧板盖在壳体69的左右侧板的外侧上，通过在两个贯孔53e中嵌合壳体69的两个爪69a而使盖53与壳体69结合。 2 and 3, the left and right side plates 53 of the cover cap on the outside of the left and right side plates of the housing 69, the housing 69 by fitting the two jaws 69a in the through hole 53e of the two leaving the cover 53 combined with the housing 69.
如图1所示，插棒54由棒部54a、固定在棒部54a后端的后部块54b、固定在棒部54a前端的矩形的台状(木屐状)构件54c、一体地形成在该台状构件54c的前部的前端尖的三角形的前端部54d，在台状构件54c的后部向下方凸出的第一凸起54d、从安装在台状构件54c的下面上的导引板55的中央向下方凸出的凸起55a(参照图6)、垫圈54f构成。 1, the plunger 54 by the rod portion 54a, the rear block 54b fixed to a rear end of the rod portion 54a, 54a fixed to the distal end of the rod portion of a rectangular flat shape (geta-like) member 54c, integrally formed in the table triangular-shaped front end portion 54d of the front end of the tip member 54c of the front portion, the rear of the stand-shaped member 54c downward projecting first projection 54d, installed on from below the stand-shaped member 54c of the guide plate 55 Central to the projecting downward projection 55a (see FIG. 6), the washer 54f constitute.
在后部块54b的左右侧面上形成着转轴54e，与操作部51的轴承孔51b嵌合。 On the left and right sides of the rear block 54b is formed with the rotating shaft 54e, and the bearing hole 51b of the operation portion 51 is fitted. 操作部51的转动运动通过轴承孔51b传递到后部块54b，棒部54a将后部块54b的前后方向的动作传递到台状构件54c。 Rotational motion of the operating portion 51 is transmitted through the bearing hole 51b to the rear block 54b, the rod portion 54a of the operation of the rear block 54b is transmitted to the front-rear direction stand-shaped member 54c.
前端部54d是从台状构件54c的左右方向中央部构件凸出的侧面大致是锐角三角形的板状构件，从侧面看其上面时的轮廓与罩53的倾斜部53d的内面吻合。 54d is a side surface of the distal end portion 54c of the right-left direction from the central portion of the stand-shaped member protruding member is substantially triangular plate-like member at an acute angle, from the side contour of the inner surface of the cover when its upper inclined portion 53d 53 coincide. 前端部54d的下面具有具有台阶的两个水平面和连接该两个水平面的倾斜面。 Here the front end portion 54d having a horizontal plane with two steps and the inclined surface connecting the two horizontal plane. 即，由从前端到中央部的第一水平面51d1、从第一水平面的终端向下方伸展的直线状的第一倾斜面51d3、从第一倾斜面的终端延伸的第二水平面54d2、从第二水平面的终端向上方变窄地延伸到达台状构件54c的第二倾斜面54d4构成。 I.e., from the front end to the central portion of the first horizontal plane 51d1, a first level of the terminal from the downward extending straight first inclined surface 51d3, a terminal from a first inclined surface extending in a second horizontal plane 54d2, from the second horizontal narrows upward extending terminal stand-shaped member 54c reaches the second inclined surface 54d4 constituted.
构成上述形状的前端部54d的下面经常地与后述的止挡构件59的前端接触，由此具有支配止挡构件59的上下运动的功能，同时与接点的接合/断开的时刻有重大的关系。 Here the front end portion 54d constituting the shape of the tip member frequently contacts the stopper 59 described later, thereby having a function of dominating the stopper member 59 moves up and down, simultaneously with the engaging / disengaging the contact time has a significant relationship.
插棒54的第一凸起54g起到使后述的翻转构件58的凸起58e运动的作用。 After the plunger 54 of the role of the first projection 54g projections 58e serve to movement of said reversible member 58 of. 导引板55的凸起55a通过与板56a接合而与翻转弹簧57的上端连接。 The guide plate projection 55a 55 by engagement with the upper end plate 56a is connected with the inverted spring 57.
垫圈54f具有穿过棒部54a的中心孔，嵌入盖53与壳体69的接合面而防止由于插棒54的前后方向的运动而引起灰尘向开关内部的侵入。 Washer 54f having a central bore through the rod portion 54a, the cover 53 and embedded in the joint surface of the housing 69 and prevent the movement of the front and rear direction of the plunger 54 caused dust intrusion to the inside of the switch.
导引板55是嵌入在插棒54的台状构件54c的下面的齿之间的矩形板。 The guide plate 55 is embedded in the rectangular plate between the teeth of the rod 54 of the stand-shaped member 54c of the following. 设在其中央的凸起55a与板56a接合。 Located at the center of the projection 55a engages with the plate 56a.
两个圆板状的板56a、56b中的上方的板56a在其中央具有比导引板55的凸起55a(参照图6)稍大的直径的凹陷部。 Two disk-shaped plates 56a, 56b of the upper plate 56a of the guide plate than the projection 55a (see FIG. 6) the recessed portion 55 of slightly larger diameter at its center. 通过在该凹陷部中接合导引板55的凸起55a的前端，可以使板56a像陀螺那样地自由地倾斜。 The front end of the guide plate 55 through the projection 55a is engaged in the recesses, the plate 56a can be inclined as to freely like a top. 插棒54的前后方向的运动从凸起55a通过板56a传递到翻转弹簧57的上端。 Longitudinal direction of the plunger 54 movement from the projections 55a 56a is transmitted to the reverse spring 57 through the upper end plate.
两个圆板状的板56a、56b中的下方的板56b在其中央具有比设在翻转部件58上的凸起稍大的直径的凹陷部。 Two disk-shaped plates 56a, 56b of the bottom plate 56b has a recessed portion provided on flipping section than the projection 58 of slightly larger diameter at its center. 通过在该凹陷部中接合翻转部件58的凸起的圆前端，可以使板56b像陀螺那样地自由地倾斜。 Flip member by engaging in the recess portion 58 of the convex circular front end plate 56b can be freely tilted as like a top.
螺旋状的翻转弹簧57以规定的压力夹设在两个板56a、56b之间，当板56a在插棒54的驱动下运动时，在前后方向上弯曲而积蓄弹簧力。 A helical pressure spring 57 with a predetermined flip sandwiched between the two plates 56a, 56b, 56a when the movement of the plunger plate 54 driven, in the longitudinal direction of the curved spring force is accumulated. 将积蓄了最大的弹簧力的状态成为翻转点。 The savings of the state's largest spring force becomes rollover point.
翻转构件58由弯曲板58a、左右两片隔板58b、细长的小齿轮58c、凸起58e、凸起58f。 Reversible member 58 by curved plates 58a, right and left two separators 58b, elongated pinion 58c, the projection 58e, the projection 58f. 该弯曲板58a是将具有比盖53的左右方向内宽小的长度的矩形的板，在与长度方向垂直的方向弯曲为圆弧状而形成，上述两片隔板58b以比板56b的直径稍大的间隔垂直地立设在上述弯曲板58a的内面上，上述细长的小齿轮58c沿弯曲板58a的中心部分的外面设置，上述凸起58d设在两片隔板58b的各上端部，上述凸起58e一体地形成在小齿轮58c的后端部，上述凸起58f一体地形成在形成于两个隔板58b的中间部的上述凸起58e和小齿轮58c的前端部。 The bending plate 58a is smaller than the width of the cover 53 within the lateral direction of the length of the rectangular plate, in a direction perpendicular to the longitudinal direction is bent into an arc shape is formed, the two sheets of separators 58b than the diameter of the plate 56b slightly larger spacing upright on the curved plate 58a in the inner surface of said elongated pinion 58c along the curved plate 58a is provided outside the central portion, the protrusion 58d provided at respective upper end portions 58b of the two sheets of separators , the protrusion 58e is integrally formed at a rear end portion of the pinion gear 58c of the projection 58f is integrally formed on the projection 58e formed on the two separator plates 58b and 58c of the intermediate portion of the front end portion of the pinion gear.
两个隔板58b用于收容翻转弹簧57。 Flip two partitions 58b for receiving a spring 57. 小齿轮58c通过与后述的作动器61的齿条部61a啮合而具有将翻转构件18的转动变换为作动器61的前后方向的直线运动的功能。 Pinion gear 58c by the rack portion 61a engaged with the later-described actuator 61 and the flip member 18 has a function of converting the rotational direction of the actuator 61 of the front and rear linear motion. 凸起58d与设在盖53的上面内侧的两个孔结合，由此，形成翻转构件58的回转中心。 Projections provided on the inner upper surface 58d and the cover 53 is combined with the two holes, thereby forming a rotation center member 58 is inverted. 凸起58e如后所述地与插棒54的第一凸起54g有关联。 Projection 58e as the rods of the first projection 54g 54 associated described hereinafter. 凸起58f如后所述地与插棒54的凸起54i有关联。 The rods are associated projections 54i 54 as described later raised to 58f.
翻转构件58由于翻转弹簧57的作用经常地受到压力。 Reversible member 58 due to the spring 57 of the flip frequently under pressure. 该压力在翻转弹簧57的翻转点最大。 The pressure spring 57 in the reversed dot inversion maximum.
止挡构件59是L形的构件，其垂直部分滑动自由地插入在设在壳体69的最前部的左右方向中央的垂直槽中。 The stopper member 59 is L-shaped member, which is slidably inserted into the vertical portion at the center in the lateral direction provided in the housing 69 of the front portion of the vertical groove. 该垂直部的上端面上形成着向后方下降的倾斜面59b。 The upper end face of the vertical portion is formed with an inclined surface declining rearwardly 59b. 该上端面与插棒54的前端部54d的上述下面接触。 The upper end surface of the contact below the front end portion 54d of the plunger 54.
止挡构件59的水平部与壳体59的底面平行地向后方凸出。 The bottom surface of the horizontal portion of the housing 59 of the stop member 59 projecting parallel to the rear. 在水平部的前端部的上面上一体地形成着具有从前向后下降的倾斜的钩部59a。 On the upper surface of the horizontal portion of the distal end portion of the hook is integrally formed with the front portion 59a inclined rearwardly downward. 该钩部59a与作动器61的凸起61c结合。 The hook portion 59a of the actuator 61 is combined with the projection 61c.
止挡弹簧60收容在设在止挡构件59的垂直部的下部的孔中，具有经常地将止挡构件59向上方弹压的功能。 The stopper spring 60 is accommodated in the stopper member 59 provided in the lower portion of the vertical portion of the bore, having regularly urging the stopper member 59 upward function. 因此，止挡构件59当插棒54前后运动时，按照前端部54d的下面的形状进行上下运动。 Therefore, the stopper member 59 when the plunger 54 back and forth movement, the distal end portion 54d of the following in accordance with a shape of vertical movement.
即，如图6所示，止挡构件59的垂直部的上端与插棒54的前端部54d的下面的第二水平面54d2接触时，止挡构件59反抗止挡弹簧60而向下推压该止挡弹簧60，但是，随着前端部54d向后移动，在止挡弹簧60的伸长力的作用下，垂直部的前端沿第一倾斜面54d3上升。 That is, when the upper end of the plunger stopper 59 of the vertical member portion 54d of the distal end portion 54 of the lower horizontal surface 54d2 of the second contact 6, the stop member 59 against the stopper spring 60 is pressed downwardly the stopper spring 60, however, with the distal end portion 54d moves backward, under the force of the spring stopper 60 of the elongation action, the distal end of the first inclined surface portion 54d3 in the vertical rise. 而且，垂直部的上端与前端部54d的第一水平面54d1接触着的期间，止挡构件59停止在上方。 During Furthermore, the upper end of the vertical portion of the distal end portion 54d of the first contact with the horizontal surface 54d1, stop member 59 stops at the top.
另外，上述前端部54d的下面的水平面及倾斜面的各自的长度是考虑了止挡构件59的钩部59a与作动器61的凸起61c的结合时间、即开关断开时的接点分离的时间后而设计的。 Further, the front end portion 54d of the respective lengths below the horizontal plane and the inclined surface is to consider the stop member 59 of the hook portion 59a with the projection 61 of the actuator 61c of the bonding time, i.e., the switch is off when the contact separation of the After time and design.
作动器61具有：与上述翻转构件58的小齿轮58c啮合的齿条部61a、固定在齿条部61a的左右两侧的两个箱状的导引部61b、分别安装在该两个导引部61b的各前端的两个可动接片65、分别安装在这些可动接片65的前面上下的左右各两个、合计四个可动接点64a、64b(在上下的接点上标注a、b)、收容在箱状的导引部61b之中从后方推压可动接片65的接压弹簧66、一体地成形在齿条部61a的下面上的作动器导引凸起61c。 Actuator 61 has: the above-described pinion gear 58 of the reversible member 58c engages the rack portion 61a, is fixed to the left and right sides of the rack portion 61a of the guide portion 61b of the two box-shaped, are respectively mounted on the two guide two each of the front end of the lead portion 61b of the movable contact piece 65, are mounted at the front of the movable contact piece 65 of each of the two upper and lower, a total of four movable contacts 64a, 64b (the upper and lower contacts labeled a , b), housed in a box-shaped guide portion 61b is pushed from the rear into the movable contact piece 65 of the contact pressure spring 66, integrally formed on the lower rack portion 61a of the actuator guide projections 61c .
由上述构成的作动器61，通过在沿前后方向铺设在壳体69上的作动器导引件上被翻转构件58驱动而伴随着可动接点64向前后方向水平移动，具有作为本发明的开关的本来功能的接点切换功能。 By the actuator 61 constituted, in the forward and backward directions by laying on the housing 69 of the actuator guide member 58 is turned along with the driving of the movable contact 64 to move forward and backward horizontally, with the present invention, The essential function of the switch contact switching function. 即，作动器61向前方向移动时，可动接点64与后述的固定接点63及67接触，向后方向移动时可动接点64从固定接点63、67离开。 That is, the actuator 61 moves in the forward direction, the movable contact 64 and fixed contacts 63 and 67 described later contact, when the backward direction away from the movable contact 64 from the fixed contacts 63, 67.
两个端子62被固定在壳体69的内空间的前壁的下部的两侧。 Two terminals 62 are fixed on both sides of the inner space of the housing 69 of the front wall of the lower portion. 固定接点63朝向后方地固定在各端子62的端子孔中。 Toward the rear of the fixed contact 63 fixed to the terminal holes 62 of the respective terminals. 该两个固定接点63与作动器61的四个可动接点64内的下方的两个接点64b对应。 The two fixed contacts 63 and 61 of the four actuators movable contact 64 below the two contacts 64b inside the corresponding.
另外，与作动器61的四个可动接点64中的上方的两个接点64a对应的两个固定接点67朝向后地固定在两个端子68的前端部。 Further, with the four actuators 61 of the movable contact 64 of the two fixed contacts two contacts 64a above the corresponding fixed to the distal end portion 68 of the two terminals 67 toward the rear. 如图1所示，该端子68具有Z字状的臂，其臂的下端部固定在壳体69的最后部的左右下部，其上端部向前方延伸，在此处固定上述固定接点67。 1, the terminal 68 has a Z-shaped arm, which arm is fixed to the lower end portion of the lower portion of the left and right of the last portion of the housing 69, an upper end portion extending forward, here fixed with the fixed contact 67.
壳体69形成为箱状，内部空间部由前壁、后壁及侧壁包围着，侧壁是两层，在该两片侧板之间收容着端子68的臂。 Housing 69 is formed in a box-like inner space portion by a front wall, a rear wall and side walls surrounding the side walls are two, between the two side plates 68 accommodated terminal arm.
可动接点64与固定接点63、67的接触由以上述插棒54、翻转部件58、作动器61等的相关联的动作构成的开关的接触机构以慢接通速断开的方式进行。 The movable contact 64 into contact with the fixed contacts 63, 67 by the contact mechanism of a switch to operation of the plunger 54, the reverse member 58, the actuator 61 or the like associated with a slow turning speed constituted off manner.
以下，参照图7～图17对说明本发明的上述开关的接触机构的动作。 Hereinafter, with reference to FIG. 7 to 17 description of operation of the switch contact mechanism of the present invention.
在图7～图17的各图中，(1)、(2)表示同一状态下的剖面，(1)主要表示可动接点与固定接点的位置关系，(2)表示翻转构件58及作动器61的位置关系。 In each of Figs. 7 to FIG. 17, (1), (2) shows a sectional view of the same state, (1) mainly shows the positional relationship between the movable contact and the fixed contacts, (2) represents the reversible member 58 and the actuator positional relationship 61.
在图7中，在未操作开关的初始状态，插棒54在复位弹簧52的弹力的作用下向箭头A方向弹压。 In Figure 7, the switch is not operated in the initial state, the plunger 54 urged toward the direction of arrow A in the reset force of the spring 52 action. 但是，插棒54的前端部54d被盖53的内壁限制，不能运动。 However, the front end portion of the rod 54 is covered inner wall 54d limit 53, can not exercise. 在该状态下，翻转构件58被翻转弹簧57推压而被赋予向逆时针方向运动的趋势，因此，作动器61虽然被向B方向赋予运动趋势，但都不能运动。 In this state, the reversible member 58 is pushed by the reverse spring 57 in the counterclockwise direction is given trend movement, therefore, the actuator 61 is given, although the tendency of movement in the direction B, but they can not be moved.
如图8所示，当操作操作部51向箭头C方向运动时，插棒54的后部块54b被向D方向拉，因此，台状构件54c及设在该台状构件54c的下部的导引板55的凸起55a也被向D方向拉。 8, when the operation of the operation unit 51 in the arrow C direction, the rod 54 of the rear block 54b is pulled in the direction D, thus, the stand-shaped member 54c and is provided at a lower portion of the stand-shaped member 54c of the guide lead plate 55 has a projection 55a is pulled in the direction D. 因此凸起55a将板56a向后方推而开始压缩翻弹簧57。 So projections 55a will push to the rear plate 56a begins to turn compression spring 57. 但是，在翻转构件58上还向保持现状的方向施加着力。 However, efforts to maintain the status quo is also applied in the direction of the reversible member 58.
如图9所示，当进一步向C方向使操作部51运动时，插棒54向D方向运动，止挡构件59沿插棒54的前端部54d的下面上升。 As shown in Figure 9, when further in the direction C so that movement of the operating portion 51 when the plunger 54 movement direction D, the stop member 59 along the distal end portion 54d below the rod 54 rises. 当在向D方向进一步使插棒54移动时，插棒54的凸起54g与翻转构件58的凸起58e接触。 When further in the direction D plunger 54 moves, the rods 54 raised bumps 54g and reversible member 58 58e contact. 这时，翻转构件58还由翻转弹簧57向保持现状的方向推压着。 Then, flip flip spring member 58 is also made to maintain the status quo of 57 push pressing direction.
当进一步向C方向移动操作部51时，如图10所示，插棒54被进一步向D方向拉，插棒54的凸起54g将翻转构件58的凸起58e向后方推压。 When the operating portion 51 is moved further in the direction C, shown in Figure 10, the plunger 54 is further pulled in the direction D, the projection 54g of the plunger 54 will flip projections 58e pressing member 58 rearward. 翻转构件58沿箭头E的方向回转，与翻转构件58的小齿轮58c啮合着的齿条部61a向箭头F方向水平移动。 Reversible member 58 in the arrow E direction rotation, with the pinion gear 58 of the reversible member 58c engaged with the rack portion 61a in the arrow F to move horizontally. 其结果，可动接点64与固定接点63、67的接点间隙缩小。 As a result, the movable contact 64 and the fixed contacts contact gap 63, 67 is reduced. 但是，由于翻转弹簧57还未超过翻转点，因此，翻转构件58没有完全翻转。 However, due to the reversal of the spring 57 is not over the rollover point, therefore, is not fully reversible member 58 flip.
如图11所示，当将操作部51进一步向C方向运动时，如图11所示，插棒54被进一步向D方向拉，因此，导引板55的凸起55a将翻转弹簧57的上端向D方向拉。 11, when the operation portion 51 further movement in the direction C, shown in Figure 11, the plunger 54 is further pulled in the direction D, and therefore, the guide plate projection 55a 55 of the upper end of the spring 57 will flip pulled in the direction D. 因此，翻转弹簧57的积蓄能量到达翻转点。 Therefore, energy savings spring flip flip reach 57 points.
在翻转弹簧57的翻转点处，翻转构件58由于翻转弹簧57的伸长力而向箭头E方向强烈地转动。 In the reverse spring 57 of the flip point, the reversible member 58 due to the elongation force of the reverse spring 57 is strongly rotated in the arrow E direction. 随之，作动器61也向箭头F方向强烈地前进，其结果，导引凸起61c反抗止挡弹簧61的压力越过止挡构件59的钩部59a的斜面。 Following this, the actuator 61 is also strongly forward direction of arrow F, as a result, the guide protrusion 61c against the stopper spring 61 of the pressure over the stopper member 59 of the hook portion 59a of the inclined surface. 而且，作动器61运动到与壳体69的壁接触的位置后停止。 Further, the actuator 61 is moved to the rear position in contact with the wall of the housing 69 is stopped.
这时，可动接点64与固定接点63、67接触，开关成为接通状态。 At this time, the movable contact 64 into contact with the fixed contacts 63, 67, the switch is turned on. 而且，可动接点64由作动器61内的压接弹簧66保持可动接点64的接触压力。 Further, the movable contact 64 connected by pressure within the actuator 61 is held in contact pressure spring 66 movable contact 64. 这时，由于接点间隙变得充分小后成为结合状态，因此，跳动非常少。 In this case, since the contact gap becomes sufficiently small after becoming bound state, therefore, very little jitter.
由于将翻转弹簧57推压翻转构件58的压力设定得比压接弹簧66的压力大，因此，作动器61不会向与箭头F方向相反的方向、即可动接点64与固定接点63、67的接触压力减少的方向运动。 Since the pressure of the reverse spring 57 presses the reversible member 58 is set larger than the pressure contact pressure spring 66 is large, therefore, the actuator 61 will not come to the direction opposite to the direction of arrow F, to the movable contact 64 and fixed contact 63 , 67 to reduce the contact pressure direction.
图12是表示将操作部51全部压下的全行程的状态。 Figure 12 shows the state of all the operating portion 51 of the full depression stroke. 这时，翻转构件58维持向箭头E方向运动的趋势的状态，作动器61维持被向箭头F方向赋予运动趋势的状态，另外，可动接点64保持压缩压接弹簧66的状态，可动、固定接点间的接点压力保持为一定，因此，不会被振动等影响。 At this time, the reversible member 58 to maintain the trend in the arrow E direction of movement of the state, to maintain the actuator 61 is given the movement trend direction of arrow F state, Further, the movable contact 64 remains compressed in the compression-spring 66, the movable , contact pressure between the fixed contact is maintained constant, and therefore, will not be affected by vibration or the like.
接着，当为了断开开关而如图13所示地减少推压操作部51的力时，在复位弹簧52的力的作用下，操作部51向箭头H方向运动，同时，插棒54的后部块54b被向箭头I方向推压。 Subsequently, when the switch is off and for reducing the force of the pressing operation as shown in section 51 of Fig. 13, under the force of the return spring 52, the operating portion 51 in the arrow H direction, while the plunger 54 after the Ministry block 54b is pushed towards the direction of the arrow I. 于是，通过导引板55的凸起55a向前方推压板56而开始压缩翻转弹簧57。 Thus, by the guide plate toward the front protrusion 55a 55 pressing plate 56 and the reverse spring 57 starts to compress. 但是，在该状态下，翻转构件58还保持着被向箭头E方向赋予运动趋势的状态。 However, in this state, the reversible member 58 also maintained the trend has been given to the movement direction of arrow E status.
如图14所示，当进一步将操作部51向箭头H方向运动时，插棒54进一步向箭头I方向运动，其结果，接近翻转弹簧57的翻转接点。 As shown, when the operating portion 51 is further in the arrow H direction, the rod 54 further in the arrow I direction of movement 14, as a result, close to the reverse spring 57 contacts the flip. 当成为该附近的位置时，与作动器61的压接弹簧66的力相结合，翻转构件58被一下子赋予向翻转方向动的趋势，同时使可动接点64与固定接点63、67之间的接压力减少。 As that when a position near, and the actuator 66 of the contact pressure spring 61 forces combined, the reversible member 58 is given a sudden tendency to flip the direction of movement, while the movable contact 64 and fixed contact 63, 67 of connected between the reduced pressure.
但是，即使作用想要将作动器61向后方运动的力，由于由止挡弹簧60推压着的止挡构件59的钩部59a与作动器61的导引凸部61c的结合产生的锁定状态，作动器61不能向后方移动。 However, even if the desired effect will force the actuator 61 to the rearward movement, due to the combination of the stopper member 59a by a thrust stopper spring 60 pressing the hook portion 59 and the actuator 61 of the guide projection portion 61c is generated the locked state, the actuator 61 can not move backward. 因此，可动接点64和固定接点63、67间的接触压力保持不变。 Therefore, the movable contact 64 and the contact pressure between the fixed contacts 63, 67 remain unchanged.
图15表示操作部51进一步向箭头F方向运动了的状态。 Figure 15 shows further movement of the operating portion 51 of the direction of arrow F state. 在该状态下，翻转弹簧57越过翻转点而欲使翻转构件58向箭头K方向回转，但是，与图14的情况相同，由于的止挡构件59的钩部59a与作动器61的导引凸部61c的结合产生的锁定状态，作动器61不能向后方移动，因此，维持着开关接通的状态。 In this state, the reverse spring 57 beyond the rollover point and purports reversible member 58 is rotated in the arrow K direction, however, the same as with the case of FIG. 14, because of the stop member 59 of the hook portion 59a and the actuator 61 of the guide coupling convex portion 61c of the locking state generated, the actuator 61 can not move backward, and therefore, maintain a state of the switch is turned on.
另外，随着插棒54向箭头I方向移动，止挡构件59的上端反抗止挡弹簧60的弹力而沿前端部54d的下面形状渐渐下降。 Further, as the plunger 54 moves in the arrow I direction, the upper end of the stopper member 59 against the elastic force of the stopper spring 60 and the following shape along the distal end portion 54d gradually decreases.
如图16所示，当操作部51进一步向箭头H方向运动时，插棒54向箭头I方向移动，前端部54d的下面的倾斜面反抗止挡弹簧60的弹力推压止挡构件59的上端，其结果，止挡构件59的钩部59a下降，从锁定状态解除作动器导引凸起61c。 The upper end shown in Figure 16, when the operation portion 51 further in the arrow H direction, the plunger 54 moves in the arrow I direction, the distal end portion 54d of the inclined surface following the elastic force of the spring 60 against the stopper pressing the stopper member 59 As a result, the stopper member 59 of the hook portions are lowered 59a, from the lock state actuator guide protrusion 61c.
这时，如上所述，由于翻转弹簧57已经越过翻转点而积蓄着最大的能量，因此，通过释放作动器61而使翻转构件58瞬间向箭头K方向回转，与小齿轮58c啮合着的作动器61向箭头J方向急剧地运动。 At this time, as described above, since the reverse spring 57 has crossed the rollover point and the maximum energy savings, and therefore, by releasing the actuator 61 leaving the flip member 58 is rotated to the instant the direction of the arrow K, and the pinion 58c engages make the actuator 61 abruptly moved in the arrow J direction. 由此，可动接点64与固定接点63、67之间急速地分离而成为开关断开状态，返回到图7所示那样的初始状态。 Thereby, the movable contact 64 and fixed contact 63, 67 between the rapidly separating switch becomes OFF state, returns to the initial state as shown in Figure 7.
本发明的开关即使在可动接点61与固定接点63、67的接点相分离时产生了轻度的熔接，在开关的寿命中，只要不完全熔接，如下所述地具有强制地拉离接点的拉离机构。 Switch of the present invention, even when the movable contact 61 contacts the fixed contact 63, 67 of the phase-separated to yield a slight fusion, in the life of the switch, as long as incomplete fusion, as described below has forcibly pulled away from the contacts pulled away from body.
如图17所示，在可动接点64与固定接点63、67轻度熔接时，操作部51向箭头H方向运动，插棒54向箭头I方向运动，插棒54的前端部54d的下面将止挡构件59向下方压入，其结果，解除了钩部59a与作动器导引凸起61c之间的锁定状态，而且，成为尽管翻转弹簧57越过了翻转点但是开关不能成为断开的状态。 , When the movable contact 64 and fixed contacts 63, 67 welded mild, the operation portion 51 in the arrow H direction, the rod 54 in the arrow I direction of movement, below the front end portion 54d of the plunger 54 is shown in Figure 17. The press-fitting the stopper member 59 downward, as a result, the lifting of the hook portion 59a and the actuator between the guide projections 61c of the lock state, and, in spite of the reverse spring 57 become crossed the rollover point but the switch can not be turned off state.
但是，插棒54在复位弹簧52的力的作用下被进一步向箭头I方向推压，其结果，插棒54的凸起54i与翻转构件58的凸起58f接触而使翻转构件58向箭头K方向回转。 However, the plunger 54 is further pushed in the direction of arrow I under the force of the return spring 52, as a result, the projection 54i and the flip member 54 of the plunger 58 of the projection 58f contacting the flip member 58 in the arrow K the direction of rotation. 因此，作动器61在翻转构件58的作用下向箭头J方向移动，可动接点64被从固定接点63、67拉离。 Thus, the actuator 61 is moved in the arrow J direction by the reversible member 58, the movable contact 64 from being pulled away from the fixed contact 63,67.
如上所述，本发明的开关的接触机构，在基本上活用弹簧翻转型的速接速断开的功能的同时、在开关接通时，在弹簧的翻转点前使可动接点充分地接近固定接点，在翻转点之后迅速地结合，因此，接点间的冲击及跳动少。 As described above, the switching of the contact mechanism of the present invention, the utilization of the spring while substantially transition speed connector speed turn off function, when the switch is turned on, before the spring is reversed so that the movable contact point is sufficiently close to the fixed contacts, combined with rapidly after rollover point, therefore, the contact between the impact and less jitter. 在开关断开时，强制地停止可动接点的移动，在充分积蓄了弹簧的能量后突然离开而可以加速接点的分离速度，减少了电弧的产生和接点的消耗。 When the switch is off, forcibly stopping movement of the movable contact, full of energy savings after the sudden departure of the spring and can accelerate contact separation speed, reduced arcing and contact consumption.
由于翻转弹簧是螺旋状，因此减少了板弹簧那样的由于品质的差别而带来开关性能差的问题。 Since the spring is a helical inversion, thereby reducing the plate spring as a result of differences in quality brought poor switching performance problems. 因此，可以提供跳动少、接点的消耗少、高额定、高寿命的AC/DC共用的电动工具用开关。 Accordingly, jitter may be provided, less contact consumption, high rated, high-life AC / DC common power tool switch.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|CN101447344B||28 Nov 2008||20 Jun 2012||佐鸟控制科技有限公司||Trigger switch|
|CN102290269A *||27 Jul 2011||21 Dec 2011||浙江科都电气制造有限公司||一种带触点开关|
|CN102290269B||27 Jul 2011||18 Sep 2013||科都电气有限公司||Switch with contact|
|International Classification||H01H5/06, H01H5/10, H01H9/20, H01H19/635, H01H1/50, H01H9/06, H01H3/00, H01H15/18|
|Cooperative Classification||H01H5/06, H01H3/001, H01H2300/048, H01H19/635, H01H1/50, H01H15/18, H01H9/06|
|European Classification||H01H1/50, H01H9/06, H01H15/18|
|4 Jun 2003||C06||Publication|
|21 Apr 2004||C10||Request of examination as to substance|
|21 Dec 2005||C14||Granted|