CN1249751C

CN1249751C - Switchgear

Info

Publication number: CN1249751C
Application number: CN 02127475
Authority: CN
Inventors: 武田昌之
Original assignee: Alps Electric Co Ltd
Current assignee: Alps Alpine Co Ltd
Priority date: 2001-08-02
Filing date: 2002-08-02
Publication date: 2006-04-05
Anticipated expiration: 2022-08-02
Also published as: CN1402283A; JP4030735B2; JP2003045275A

Abstract

The invention provides a switching device which can structure a simple push/push type switch without complicating processes and controls and improve contact reliability of a contact point in case of infiltration of dusts and foreign matters. The switching device is provided with a driving plate 6 fitted under an operation lever 3 arranged in free up and down movement in a case 1 and rotating in accordance with the up and down movement of the operation lever 3, return springs 4, 5 for restoring the operation lever 3 and the driving plate 6 to their initial positions, a slider 7 sliding left and right according to the rotation of the driving plate 6, and a wafer 9 fitted with a fixed contact point 10a coming in sliding contact with a clip-like movable contact point 12 incorporated in the slider 7. At the movement of the slider 7, the movable contact point 12 slides pinching the fixed contact point 10a fitted vertically from the wafer 9, and at same time, the slider 7 is made biased to the sliding direction with a reversing screw 8 fitted to the slider 7.

Description

Switching device

Technical field

The present invention relates to a kind of structure of button type switch device, relate in particular to a kind of structure of carrying out the button type switch device that contact switches by the pushing of action bars (connection)/push (disconnection) operation.

Background technology

Past by (lead to)/by (breaking) formula switching device, generally known has following two kinds:

Seesaw switch, it rocks from side to side interactive translation activity contact by action bars is carried out pressing operation, shakes along with this, the contact portions that is fixed on the movable contact two ends snaps on the fixed contact set on the inner bottom surface of housing and substrate etc., carries out contact and switches; And

Rotary switch, its pressing operation by action bars makes the slip subtype movable contact that is arranged on the swivel plate be rotated action, snap on the fixed contact set on the inner bottom surface of housing and substrate etc. along with this spinning movement makes movable contact, carry out contact and switch.

The structural member of interactive transfer switch unit mainly contains: housing; Action bars, it is positioned at this housing and can moves up and down; Drive plate, it is installed in the downside of this action bars and can rotates; Spring members, it applies strength to aforesaid operations bar and above-mentioned drive plate and is located on top and the middle position; Movable contact, it overlaps with the front end of drive plate mutually along with the rotation of above-mentioned drive plate, thereby is shaken; Fixed contact, be used for be arranged on above-mentioned movable contact both ends on contact portion overlap mutually; And substrate, be provided with the said fixing contact on it.

This mutual change type switching device, if its aforesaid operations bar is carried out pressing operation, then the leading section of above-mentioned drive plate snaps on the inclined plane on one side of the dihedral cam part that is formed on above-mentioned movable contact upper face side, to pushing and slide in this inclined plane, above-mentioned drive plate is to rotating on one side, and leading section is pushed an end of above-mentioned movable contact downwards.Push by this and above-mentioned movable contact to be shaken with the fixed contact of another side that is arranged on the below to one side contact.

If remove to the pushing of aforesaid operations bar, then because the active force of above-mentioned spring members turns back on the initial position aforesaid operations bar from this state.At this moment, above-mentioned drive plate turns back on the original middle position from rotary state.

Then, if again the aforesaid operations bar is carried out pressing operation, then the leading section of above-mentioned drive plate be formed on above-mentioned movable contact above another inclined plane of dihedral cam part of a side overlap mutually, by pushing this inclined plane and slip, above-mentioned drive plate is rotated to the opposing party, the other end of above-mentioned movable contact is pushed downwards by leading section.Push by this, above-mentioned movable contact shakes to the opposing party, overlaps mutually with other fixed contacts that are arranged in the below, carries out contact and switches.

The structural member of rotary switch device mainly contains: housing; Action bars, it is positioned at this housing and can moves up and down; Swivel plate, it is installed in the downside of this action bars and can rotates; Spring members, it applies upward power to the aforesaid operations bar; Location-plate, its card clatter one navigates to above-mentioned swivel plate on the position of rotation; Movable contact, it is fixed on the above-mentioned swivel plate, rotates along with the rotation of swivel plate; Fixed contact, it overlaps mutually with contact portion on being arranged on this movable contact; And substrate, arrange the said fixing contact on it.

This rotary switch device, if the aforesaid operations bar is carried out pressing operation, then the driving that is arranged on a following side of aforesaid operations bar according to annular snaps into similarly with cam tooth and is arranged on the rotation of a side above the above-mentioned swivel plate with on the cam tooth according to annular, pushing this cam tooth slides, above-mentioned swivel plate is rotated by certain angle in one direction, holds it on the position, rule position by above-mentioned location-plate.By this rotation, above-mentioned movable contact also rotates to a direction, contacts with the fixed contact that is arranged on the below.

From this state, if remove pushing of aforesaid operations bar, then utilize spring members be used for make the aforesaid operations bar turn back to initial condition.At this moment, above-mentioned swivel plate remains on the position of rotation by means of above-mentioned location-plate.

Secondly, if once more the aforesaid operations bar is carried out pressing operation, then be arranged on the driving cam tooth of a side below the aforesaid operations bar, snap into be arranged on a side above the above-mentioned swivel plate rotation with on the cam tooth, pushing this cam tooth slides, above-mentioned swivel plate is further rotated by certain angle in one direction, utilize above-mentioned location-plate that it is remained on the assigned position.By this rotation, above-mentioned movable contact also further rotates in one direction, contacts with the different fixed contact that is arranged on the below, carries out contact and switches.But in the button/pusher switching device in above-mentioned past, in the switching device of mutual conversion hysteria, contact portion is an overlapping contact structure of utilizing mutual switching motion, thus at foreign matter, loose contact under the situation that dust etc. are invaded, anti-environmental characteristics is poor.

In the rotary switch device, contact portion is a slidingtype, compares with the overlap joint point type, and anti-environmental characteristics is good slightly.But owing to be the single face structure of sliding only, so still might contact instability.And contact portion must be corresponding with swivel plate, forms a plurality of contacts, complex structure, and therefore, operation and management are very complicated.

And the components number that total is used is more, the assembling trouble, and operation increases, so the cost raising, is difficult to reduce price.

The content of invention

So the objective of the invention is to: address the above problem, a kind of switching device is provided, it can constitute company by the formula switch with easy structure, and is miscellaneous to prevent operation and management, can improve the contact reliability of the contact under dust and the allotrylic situation simultaneously.

In order to address the above problem, the 1st method of the present invention is characterized in that having: housing;

Action bars, it is positioned at this housing and can moves up and down; Drive plate, it is set at the bottom of this action bars, rotates along with moving up and down of aforesaid operations bar;

Reset and use spring, it makes aforesaid operations bar and above-mentioned drive plate turn back to initial position;

Slider forms the operation of cam of the dihedral on the faying surface be positioned at drive plate on it, thereby owing to the rotation of above-mentioned drive plate horizontally slips;

Movable contact, it is the clip shape, is positioned at this slider;

Substrate is provided with the fixed contact that carries out sliding contact with this movable contact on it; And

Lid, it leads to this substrate in housing,

When above-mentioned slider moves, above-mentioned movable contact clamping is vertically mounted on above-mentioned on-chip fixed contact and slides, simultaneously, on above-mentioned slider and housing, keep counter-rotating to use spring, utilize this counter-rotating to apply the power of glide direction to above-mentioned slider with spring.

Moreover, the 2nd method, it is characterized in that: utilize the line spring to form above-mentioned counter-rotating spring, an one free end carries out the axle supporting by above-mentioned housing, another free end carries out the axle supporting by above-mentioned slider simultaneously, it can be shaken, with moving of above-mentioned slider when above-mentioned slider horizontally slips, spring reverses, and above-mentioned slider is applied the power of glide direction.

Moreover the 3rd method is characterized in that: above-mentioned resetting is made of following 2 parts with spring:

The 1st resets uses spring, and it applies upward power to the aforesaid operations bar between aforesaid operations bar and above-mentioned housing;

The 2nd resets uses spring, and it turns back on the middle position above-mentioned drive plate between aforesaid operations bar and above-mentioned drive plate.

Moreover the 4th method is characterized in that: above-mentioned drive plate combines with the aforesaid operations bar by hook portion and positions.

Moreover the 5th method is characterized in that: form a kind of clamping portion of terminal on above-mentioned substrate, its root from vertically disposed said fixing contact is bent along the bottom surface, and its leading section expands to open on above-below direction and is divided into two strands.

Moreover the 6th method is characterized in that: form a kind of restricted guidance portion that above-mentioned portion of terminal is applied power upward on above-mentioned lid.

The effect of invention:

As mentioned above, switching device of the present invention has: housing; Action bars, it is positioned at this housing and can moves up and down; Drive plate, it is set at the bottom of this action bars, rotates along with moving up and down of aforesaid operations bar; Reset and use spring, it makes aforesaid operations bar and above-mentioned drive plate turn back to initial position; Slider, its with the faying surface of drive plate on be formed the operation of cam of dihedral, thereby owing to the rotation of above-mentioned drive plate horizontally slips; Movable contact, it is the clip shape, is positioned at this slider; Substrate is provided with the fixed contact that carries out sliding contact with this movable contact on it; And lid, it leads to this substrate in housing,

When above-mentioned slider moved, above-mentioned movable contact clamping was vertically mounted on above-mentioned on-chip fixed contact and slides, and on above-mentioned slider and housing, maintain the counter-rotating use spring, utilize this counter-rotating to apply the power of glide direction to above-mentioned slider with spring.

So, contact portion forms the two face sliding type, even under dust and allotrylic situation, also can improve the contact reliability of contact portion, simultaneously, owing to be the structure of utilizing spring counter-rotating, so the click when contact switches is felt good, by the slider negative actuation after preventing to switch, can improve the reliability when switching.

Moreover, utilize the line spring to form above-mentioned counter-rotating spring, an one free end carries out the axle supporting by above-mentioned housing, another free end carries out the axle supporting by above-mentioned slider simultaneously, it can be shaken with moving of above-mentioned slider, when above-mentioned slider horizontally slipped, spring reversed, and above-mentioned slider was applied the power of glide direction.

So utilize the simple structure of single line spring, can form the reversible type structure, therefore, assembling is simple, can reduce cost.

And reset and constitute by following 2 parts with spring:

So, use the driving spring of spring and drive plate by making resetting of action bars respectively separately, can make the loading of drive part, operational forces is changed easily, adapts to variety classes easily:

And drive plate combines with the aforesaid operations bar by hook portion and positions.So, can prevent to jump out, can form semi-finished product, therefore manageable and assembling.

Moreover, the portion of terminal of a kind of clamping of formation on substrate, it is bent along the bottom surface from the root of vertically disposed fixed contact, and its leading section expands open form and becomes two strands on above-below direction,

So the two-sided contact of energy can connect outside terminal and connector, therefore, can simplify the connection operation.

And, on above-mentioned lid, form a kind of restricted guidance portion that above-mentioned portion of terminal is applied power upward.So, can prevent the portion of terminal distortion, therefore can improve reliability.

Brief description of drawings

Fig. 1 is the exploded perspective view of the switching device of expression an embodiment of the present invention.

Fig. 2 is the skiagraph of the switching device of expression an embodiment of the present invention.

Fig. 3 is the skiagraph of the switching device watched from the slider moving direction of expression an embodiment of the present invention.

Fig. 4 is the key diagram of the initial actuating state of expression switching device of the present invention.

Fig. 5 is the key diagram of operate condition in the handoff procedure of expression switching device of the present invention.

Fig. 6 is the key diagram of operate condition after the switching of expression switching device of the present invention.

The working of an invention mode

Below in Fig. 1 ~ Fig. 6, represent embodiments of the present invention.Fig. 1 is the exploded perspective view of switching device of the present invention, and Fig. 2 is its skiagraph, and Fig. 3 is the skiagraph of watching from the moving direction of slider, and Fig. 4-Fig. 6 is action specification figure, and Fig. 4 is an initial condition, and Fig. 5 is in the handoff procedure, and Fig. 6 is the state after switching.

In Fig. 1 ~ Fig. 3, housing is formed by following two parts:

The 1st housing 1, it is made of insulating material such as synthetic resin; And

The 2nd housing 2, it is with bending method metal plate shape to be become the case shape.

Above-mentioned the 1st housing 1 constitutes by the square base 1a of lower aperture and to the outstanding 1b of cylindrical bearing portion in the top of this base portion 1a, and the storage part 1c of case shape is set in the lower aperture portion of above-mentioned base portion 1a, puts at this storage part 1c internal memory and states the 2nd housing 2.And, in the above-mentioned bearing 1b of portion, be provided with and be hollow part 1d cylindraceous and link to each other with this hollow part 1d and can make following action bars 3 a side-prominent reach through hole 1e upward.

Moreover, on the base portion 1a of above-mentioned the 1st housing 1, be provided with otch window 1f in the cardinal principle centre of an aspectant counter-lateral quadrents, carry out at the above-mentioned otch window 1f of counter-lateral quadrents being provided with the 1g of pair of notches portion on the both sides of clamping.And, on the side end of above-mentioned base portion 1a, with the corresponding position of following portion of terminal 10b, 10c on formed a plurality of concave part 1h.

Above-mentioned the 2nd housing 2 is that metallic plate is carried out bending ram, forms box-like.2 groups of side plate 2b, 2c having flat upper plate 2a and let droop at 4 sidepieces of this upper plate 2a.Be provided with square reach through hole 2d on above-mentioned upper plate 2a, when above-mentioned the 2nd housing 2 was placed in the 1c of the portion of laying of above-mentioned the 1st housing 1, above-mentioned reach through hole 2d was corresponding with the reach through hole 1e of the above-mentioned bearing 1b of portion.

And above-mentioned side plate 2b compares with above-mentioned side plate 2c, and the size in length and breadth of its formation is all longer, has formed bonding pad 2e respectively in four horizontal bights.When above-mentioned side plate 2b is placed in the 1c of the portion of laying of above-mentioned the 1st housing 1 at above-mentioned the 2nd housing 2, outstanding from the otch window 1f of portion of above-mentioned the 1st housing 1, extend on the sidepiece face of above-mentioned base portion 1a, above-mentioned bonding pad 2e combines with the 1g of pair of notches portion of above-mentioned base portion 1a by method such as chimeric.

Moreover, near the cross part of the one side of above-mentioned side plate 2c and above-mentioned upper plate 2a, form a kind of support 2f, be used for the free end of following counter-rotating with one side of spring 8 carried out the axle supporting and it can be rotated, and, on above-mentioned side plate 2b, form a kind of yielding slot part 2g, so that counter-rotating is reversed with spring 8.In the spatial portion that fences up by above-mentioned 2 groups of side plate 2b, 2c, install to put down and state slider 7 and it can be moved.In the case, the inner wall part of above-mentioned side plate 2b overlaps mutually with the both ends of slider 7, forms the stop surface that restriction is moved.

It is cylindric that action bars 3 utilizes insulating material such as synthetic resin to form substantially, and it has the big slightly base portion 3a of diameter and the operating portion 3b of outstanding elongated shape from this base portion 3a.A side is provided with a kind of the 1st spring installation portion 3c that is made of the big ring-shaped groove of diameter below above-mentioned base portion 3a; Central authorities at the 1st spring installation portion 3c have formed by being substantially of minor diameter the 2nd spring installation portion 3d cylindraceous; Front end one side at the 2nd spring installation portion 3d has formed opposed a pair of joint portion 3e.

The 1st end that resets with spring 4 that is made of helical form compression spring combines with above-mentioned the 1st spring installation portion 3c, and the other end combines with the upper plate 2a of above-mentioned the 2nd housing 2.Therefore, aforesaid operations bar 3 is stressed all the time, and the direction of this power is to turn back to original position, and is promptly outstanding from the reach through hole 1e of the 1b of bearing portion of above-mentioned the 1st housing 1.

And, similarly, the 2nd end that resets with spring 5 that is made of helical form compression spring combines with above-mentioned the 2nd spring installation portion 3d, the other end combines with the upper end of following drive plate 6, this drive plate 6 combines with a pair of above-mentioned joint portion 3e that is arranged on front end again and can rotate, and therefore, drive plate 6 is stressed all the time, the direction of this power is to turn back to original position, promptly turns back on the middle position identical with the axis direction of aforesaid operations bar 3.

Like this, owing to resetting of aforesaid operations bar 3 and following drive plate 6 being turned back to use on the original position is the 1st to be resetted with spring 4 and make drive plate 6 turn back to the 2nd on the middle position and reset and form with spring 5 by what aforesaid operations bar 3 is applied upward active force with spring, so, can form resetting of action bars 3 respectively with the driving spring of spring and drive plate 6.Therefore, loading, the operational forces of drive part are changed easily, and the change of kind adapts to easily.

Drive plate 6 is made of insulating material such as synthetic resin, forms the T font substantially.On the upper end of this drive plate 6, form:

Plane spring joint portion 6a, it combines with the above-mentioned the 2nd other end that resets with spring 5; And

Hook portion 6b, it combines with the above-mentioned joint portion 3e of the front end that is arranged on above-mentioned the 2nd spring installation portion 3d on one side and can rotate.

Above-mentioned drive plate 6 is under the situation of being installed on the aforesaid operations bar 3, be subjected to the above-mentioned the 2nd the reset strength that applies with spring 5 and outstanding from above-mentioned the 2nd spring installation portion 3d, position fixingly by above-mentioned joint portion 3e and above-mentioned hook portion 6d, form an integral body, can not pull out.Operating efficiency in the time of can improving assembling with this simple structure.

Moreover, on above-mentioned drive plate 6, form a kind of tongue-shaped operating sheet 6c that extends from above-mentioned spring joint portion 6a forward end one side, front end by this operating sheet 6c overlaps mutually with operation of cam 7a, the 7b of following slider 7, and slider 7 is moved on the direction that horizontally slips.At this moment, aforesaid operations sheet 6c rocks from side to side, so, above-mentioned drive plate 6 rotates, the top formation arc surface of above-mentioned hook portion 6d, this arc surface and above-mentioned the 2nd spring installation portion 3d carry out sliding contact in the face of the top side of above-mentioned joint portion 3e, thereby above-mentioned drive plate 6 can successfully be rotated.

Slider 7 is formed by insulating material such as synthetic resin, and the centre of a side has formed a kind of operation of

cam

7a, 7b of dihedral in the above, and it overlaps mutually with the operating sheet 6c of above-mentioned drive plate 6 and moves to the left and right.And, form spring on the superincumbent sidepiece and lay the 7c of portion, lay a kind of support 7d of formation among the 7c of portion at this spring, be used for the free end of counter-rotating with one side of spring 8 carried out the axle supporting and it can be rotated, this spring 8 is to be bent to form the font into S substantially with wire rods such as metals.

And forming a kind of front end one side that extends into the L font substantially being positioned at of above-mentioned slider 7 on the both ends on the glide direction is free-ended elastic arm 7e, makes front end one side that extends to form have elasticity.Because this elastic arm 7e is formed on the glide direction both ends of above-mentioned slider 7, so, when this elastic arm 7e snaps on the inner arm of above-mentioned the 2nd housing 2, the effect of this elastic arm 7e performance padded coaming, can the impact when switching relax, reduce impact sound.

Moreover a side has formed contact and has laid the 7f of portion below above-mentioned slider 7, lays the movable contact 12 of laying a kind of clip shape that is made of the conductive metal plate among the 7f of portion at this contact, and the following fixed contact 10a of its clamping also can slide.

Substrate 9 installs and fixes a kind of fixed contact 10a and portion of terminal 10b, 10c that is made of the conductive metal plate on its baseplate part 9a that is formed by insulating material such as synthetic resin.And, said fixing contact 10a vertically be arranged on the 9a of aforesaid substrate portion above, and above-mentioned portion of terminal 10b, the 10c bottom surface from the root of vertically disposed said fixing contact 10a along the 9a of aforesaid substrate portion is bent.Its leading section is expanded on above-below direction and is split into 2 strands, and the face ground of facing one another is arranged.Between each portion of terminal 10b, 10c that this is expanded out, the connection of not having illustrated connector etc. is carried out clamping with outside terminal, keep connecting.

Like this, be split into two strands because the leading section of above-mentioned portion of terminal 10b, 10c is expanded on above-below direction, and the face ground of facing one another is arranged, so, can two-sidedly contact, can connect with being connected of no illustrated connector etc. with outside terminal, therefore, can simplify the connection operation.

Lid 11 is to utilize insulating material such as synthetic resin to form the box shape of top opening.This lid 11 is that aforesaid substrate 9 is laid and remained in the opening, forms the terminal guide part 11a that above-mentioned portion of terminal 10b, 10c are led on this lid 11.

Moreover, on above-mentioned terminal guide part 11a, form a kind of restricted guidance 11b of portion, wherein, be expanded on above-below direction at leading section that to be split into be among two strands above-mentioned portion of terminal 10b, the 10c of clamping, the front end of the portion of terminal 10b that is positioned at top one side applied upward power by the above-mentioned restricted guidance 10b of portion.By the 11b of this restricted guidance portion is set, can prevent portion of terminal distortion, so, can improve the contact reliability when in above-mentioned portion of terminal 10b, 10c, having inserted the connection usefulness outside terminal that does not have illustrated connector etc.

And, on the both ends of the aspectant counter-lateral quadrents of above-mentioned lid 11, be provided with a pair of notch part 11c.And, on the end of above-mentioned terminal guide part 11a, with the corresponding position of above-mentioned portion of terminal 10b, 10c on formed a plurality of concave part 11d.

And, when above-mentioned lid 11 combines with above-mentioned the 1st housing 1 and the 2nd housing 2, on four bights of the side plate 2b of above-mentioned the 2nd housing 2 among the formed bonding pad 2e, the above-mentioned bonding pad 2e that is positioned at downside utilizes method such as riveted joint to combine with a pair of above-mentioned notch part 11c.That is to say that the formed above-mentioned bonding pad 2e in four bights of the side plate 2b that above-mentioned the 1st housing 1 and above-mentioned lid 11 utilizes at above-mentioned the 2nd housing 2 and riveting is combined into an integral body.

Below utilize Fig. 4 ~ Fig. 6, describe the action of the switching device of above-mentioned formation in detail.

At first, under initial state shown in Figure 4, aforesaid operations bar 3 utilizes the above-mentioned the 1st to reset and be moved upward with the active force of spring 4, promptly move, combine with the joint portion 3e of the front end of action bars 3 and the above-mentioned drive plate 6 that can rotate also utilizes the above-mentioned the 2nd to reset and arrive on the middle position identical with the axis direction of aforesaid operations bar 3 with the active force of spring 5 to action bars 3 outstanding directions.At this moment, above-mentioned slider 7 utilizes above-mentioned counter-rotating, and the right to accompanying drawing moves with the active force of spring 8, becomes the contacted state of said fixing contact 10a on above-mentioned movable contact 12 and accompanying drawing right side.

Secondly, if push the operating portion 3b of aforesaid operations bar 3, then as shown in Figure 5,3 counteractings the above-mentioned the 1st of aforesaid operations bar reset and move downwards with the active force of spring 4, the front end of the operating sheet 6c of above-mentioned drive plate 6 also moves downwards, on above-mentioned slider 7, among formed aforesaid operations cam 7a, the 7b, overlap mutually, topple over to the accompanying drawing left side along the dihedral cam surface with the operation of cam 7a that is formed on the accompanying drawing left side.

And,, can make the front end of aforesaid operations sheet 6c push above-mentioned slider 7 it is moved to the accompanying drawing left side by pushing aforesaid operations bar 3.So overcoming above-mentioned counter-rotating, above-mentioned slider 7 moves (Fig. 5) to the left side of accompanying drawing with the active force of spring 8.

If further push aforesaid operations bar 3 from this state, then as shown in Figure 6, the front end of the aforesaid operations sheet 6c that further topples over is pushed aforesaid operations cam 7a, so above-mentioned slider 7 further is pressed and moves to the left side of accompanying drawing, when this slider 7 be moved beyond middle position the time, move by the dead point centre that above-mentioned slider 7 carries out axle supporting and the above-mentioned counter-rotating that can rotate is crossed when reversing with the axle fulcrum of spring 8, above-mentioned counter-rotating with the active force of 8 pairs of above-mentioned sliders 7 of spring from the right of accompanying drawing be inverted to left to, above-mentioned slider 7 above-mentioned counter-rotating with under the effect of spring 8 to the left of accompanying drawing to moving.

At this moment, be positioned on the both ends on the glide direction of above-mentioned slider 7, form above-mentioned elastic arm 7e, its extend substantially become the L font front as free end, have elasticity, so, this elastic arm 7e overlaps mutually with the inner arm of above-mentioned the 2nd housing 2, this elastic arm 7e can bring into play the effect of padded coaming, relaxes the impact when switching, and can reduce impact sound.

Moreover in the case, above-mentioned slider 7 is under the effect of above-mentioned counter-rotating with spring 8 and is subjected to the state of accompanying drawing left to the power that moves, and above-mentioned movable contact 12 is in the contacted state of said fixing contact 10a with the accompanying drawing left side.That is to say that along with moving of above-mentioned slider 7, above-mentioned movable contact 12 carries out switch with this and switches (Fig. 6) from the fixed contact 10a that the fixed contact 10a on accompanying drawing right side switches to the accompanying drawing left side.

If remove the pushing of aforesaid operations bar 3 from this state, then aforesaid operations bar 3 utilizes the above-mentioned the 1st to reset and turn back on the original position shown in Figure 4 with the active force of spring 4.In the case, above-mentioned slider 7 remains on the state that continues to bear the elastic force that moves to the accompanying drawing left side under the effect of above-mentioned counter-rotating with spring 8.

And, from this state aforesaid operations bar 3 is being carried out under the situation of pressing operation, the front end of the operating sheet 6c of above-mentioned drive plate 6 moves downwards, overlap mutually with the operation of cam 7b that is formed on the accompanying drawing right side among aforesaid operations cam 7a, the 7b on be formed on above-mentioned slider 7, topple over to the accompanying drawing right side along the cam surface of chevron shape.

And, the front end of aforesaid operations sheet 6c is pushed above-mentioned slider 7 according to the direction that moves to the accompanying drawing right side, above-mentioned slider 7 overcomes above-mentioned counter-rotating and moves to the right of accompanying drawing with the active force of spring 8, so, above-mentioned slider 7 is owing to above-mentioned counter-rotating is in the state that bears to the active force of accompanying drawing right with the counter-rotating effect of spring 8, above-mentioned movable contact 12 carries out switch with this and switches from the fixed contact 10a that the fixed contact 10a in accompanying drawing left side switches to the accompanying drawing right side.

According to above-mentioned formation, make following slide construction; When above-mentioned slider 7 moves, 12 pairs of the above-mentioned movable contacts of clip shape vertically disposed said fixing contact 10a from the aforesaid substrate 9 carries out clamping and slides, and, above-mentioned counter-rotating is set with spring 8 on above-mentioned slider 7, utilizes this counter-rotating to apply the power of glide direction with 8 pairs of above-mentioned sliders 7 of spring.So, form the two face sliding type between the contact portion that contacts, therefore,, also can improve the contact reliability of contact portion even under dust or allotrylic situation, counter-rotating is set with spring 8 simultaneously on above-mentioned slider 7, utilize the counter-rotating of spring.So the click when contact switches is felt good, improve contact reliability when switching etc. by the slider negative actuation (moving to opposition side) after preventing to switch.

Moreover, above-mentioned counter-rotating is formed by the line spring that is substantially the S font with spring 8, free end to one side of this line spring carries out the axle supporting on above-mentioned the 2nd housing 2, the free end of another side carries out the axle supporting on above-mentioned slider 7, make it can follow the tracks of moving and shaking of above-mentioned slider 7, therefore, when above-mentioned slider 7 slides to the left and right, the counter-rotating of this line spring makes slider 7 bear active force to glide direction, so, easy structure with the single line spring can form the reversible type structure, therefore, assembling is simple, can reduce cost.

Claims

1, a kind of switching device is characterized in that having:

Housing; Action bars, it is positioned at this housing and can moves up and down; Drive plate, it is set at the bottom of this action bars, rotates along with moving up and down of aforesaid operations bar;

Slider, its with the faying surface of drive plate on be formed the operation of cam of dihedral, thereby can horizontally slip by the rotation of above-mentioned drive plate;

Movable contact, it is the clip shape, is positioned at this slider;

Lid, it leads to this substrate in housing,

When above-mentioned slider moved, above-mentioned movable contact clamping was vertically mounted on above-mentioned on-chip fixed contact and slides, and maintained counter-rotating use spring on above-mentioned slider and housing, utilized this counter-rotating to apply the power of glide direction with spring to above-mentioned slider,

Above-mentioned reset to reset to reset by the 1st with spring and the 2nd with spring constitute with spring,

2, switching device as claimed in claim 1, it is characterized in that: utilize the line spring to form above-mentioned counter-rotating spring, an one free end carries out the axle supporting by above-mentioned housing, another free end carries out the axle supporting by above-mentioned slider simultaneously, it can be shaken with moving of above-mentioned slider, when above-mentioned slider horizontally slipped, spring reversed, and above-mentioned slider was applied the power of glide direction.

3, switching device as claimed in claim 1 is characterized in that: above-mentioned drive plate combines with the aforesaid operations bar by hook portion and positions.

4, switching device as claimed in claim 1 is characterized in that: form a kind of clamping portion of terminal on above-mentioned substrate, its root from vertically disposed said fixing contact is bent along the bottom surface, and its leading section expands to open on above-below direction and is divided into two strands.

5, switching device as claimed in claim 4 is characterized in that: form a kind of restricted guidance portion that above-mentioned portion of terminal is applied power upward on above-mentioned lid.