CN205248157U

CN205248157U - Novel micro -gap switch

Info

Publication number: CN205248157U
Application number: CN201620002800.1U
Authority: CN
Inventors: 王华健; 许小云; 吴建成
Original assignee: Tongda Electromechanical Industry (huizhou) Co Ltd
Current assignee: Tongda science and Technology (Huizhou) Co., Ltd.
Priority date: 2016-01-05
Filing date: 2016-01-05
Publication date: 2016-05-18
Anticipated expiration: 2026-01-05

Abstract

The utility model relates to a novel micro -gap switch, including switch shell and button, be equipped with the base in the switch shell, install applicable to all terminal on the base, normally open terminal and normal close terminal, normally open to correspond respectively on terminal and the normal close terminal and be equipped with the contact, still install moving plate and branch in the switch shell, moving plate one end is U type form, is equipped with two mounting grooves that are used for moving plate card income on applicable to all terminal, and two outsides of moving plate one end are equipped with the bulge that applicable to all terminal lateral surface was lived to the joint respectively. The utility model discloses the moving plate connection of the sub - link pack of go side and extension spring and branch together is more firm, and when the switch was assembled, the moving plate can not the horizontal hunting, can not the slippage, and extension spring and branch can not falled scattered yet, improve the manufacturing nature and the reliability of product, guarantee switch function, in addition, arrange the working face of contact in between the terminal cross section department, terminal occupation space is little, and the structure is simpler, and it is easier to make, and the installation accuracy is better.

Description

A kind of inching switch

Technical field

The utility model relates to switching technique field, specifically refers to a kind of improvement of microswitch structure.

Background technology

Switch is the visual plant for control apparatus device in people's daily life or industrial production, and it is widely used in auto parts machinery/equipment (as air-conditioning, door lock etc.) signal controlling application.

In prior art, there is number of drawbacks in switch, one, moving plate together go side installation connect firm not, cause moving plate easily slippage from common terminal in assembling process, cause switching function lost efficacy; Two, due to before unassembled completing, one end that extension spring is connected with pole is unsettled, and when assembling, extension spring and pole are easily scattered, and also can make switching function lose efficacy; Three, terminal take up room larger, complex structure, make difficulty, precision be difficult to ensure.

Summary of the invention

For solving the problems of the technologies described above, the utility model by the following technical solutions:

A kind of inching switch, comprise switch case and be arranged on the button in switch case, in switch case, be provided with base, common terminal for being connected with external circuit is installed on base, Chang Kaiduan and normally closed terminal, on Chang Kaiduan and normally closed terminal, correspondence is provided with contact respectively, moving plate and pole are also installed in switch case, moving plate one end is fixed on common terminal middle part by extension spring, the moving plate other end is connected with contact, pole middle part is fixed in common terminal upper portion by the extension spring other end, pole top is butted on button bottom surface, in the time that button receives from outside power or stroke, to make pole one end move, and drive extension spring to move by the other end of pole, extension spring drives moving plate to contact conducting with the associated terminal contact setting, described moving plate one end is U-shaped shape, on common terminal, be provided with two mounting grooves that snap in for moving plate, two outsides of moving plate one end are respectively equipped with clamping lives the protuberance of common terminal lateral surface.

Preferably, on above-mentioned base, the below of the extension spring other end is provided with boss, and pole is in the time of initialization state, and the bottom surface of the extension spring other end is carried on boss.

Preferably, in the form of sheets, the working face of contact is positioned at the cross-section between terminal for above-mentioned Chang Kaiduan and normally closed terminal.

Preferably, the cross section between above-mentioned terminal is stepped.

Preferably, the cross-section between above-mentioned terminal has cylinder shape groove.

Preferably, above-mentioned contact is circular rivet-like, and contact has a gap on the small column periphery welding, and the gap plane of small column and the side of blade terminals join.

Preferably, above-mentioned contact is cylinder, has a gap on cylindrical periphery, and the side of cylindrical gap plane and blade terminals joins.

Preferably, above-mentioned contact is that cross section is the square body of " L " shape, and the medial surface of square body and the side of blade terminals join.

The utlity model has following remarkable result:

The utility model microswitch structure is reasonable in design, by adopting said structure, the connection of the assembling of go side sub-connection and extension spring and pole is more firm together to make moving plate, in the time that switch is assembled, moving plate can not swing, can slippage, and extension spring and pole also can not be scattered, improve manufacturing and the reliability of product, guarantee switching function; In addition, the working face of contact is placed in to the cross-section between terminal, terminal takes up room little, and structure is simpler, and it is easier to make, and installation accuracy is better.

Brief description of the drawings

Accompanying drawing 1 is the utility model decomposition texture schematic diagram;

Accompanying drawing 2 is the utility model assembly structure schematic diagrames;

Accompanying drawing 3 is the utility model base and moving plate syndeton schematic diagram;

Accompanying drawing 4 is accompanying drawing 3A portion structure for amplifying schematic diagrames;

Accompanying drawing 5 is the utility model base, each terminal, moving plate, extension spring and pole syndeton schematic diagram;

Accompanying drawing 6 is the utility model Chang Kaiduan and normally closed terminal and circular rivet-like contact syndeton schematic diagram;

Accompanying drawing 7 is terminal structure schematic diagrames that the utility model has cylinder shape groove;

Accompanying drawing 8 is cylinder contact structure schematic diagrames that the utility model has gap;

Accompanying drawing 9 is the utility model " L " shape contact structure schematic diagrames.

Detailed description of the invention

For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing and embodiment, the utility model is explained in further detail.

As shown in accompanying drawing 1-6, a kind of inching switch, comprise switch case 1 and be arranged on the button 3 in switch case 1, in switch case 1, be provided with base 2, common terminal 41 for being connected with external circuit is installed on base 2, Chang Kaiduan 42 and normally closed terminal 43, on Chang Kaiduan 42 and normally closed terminal 42, correspondence is provided with contact 40 respectively, moving plate 5 and pole 6 are also installed in switch case 1, moving plate 5 one end are fixed on common terminal 41 middle parts by extension spring 7, moving plate 5 other ends are connected with contact 40, on moving plate 5, be also provided with contact 40, be that contact 40 on moving plate 5 is connected with the contact 40 on Chang Kaiduan 42 or normally closed terminal 43, pole 6 middle parts are fixed on common terminal 41 tops by extension spring 7 other ends, pole 6 tops are butted on button 3 bottom surfaces.

In the present embodiment, one end that moving plate 5 is not provided with terminal 40 is U-shaped shape, is provided with two mounting grooves 411 that snap in for moving plate 5 on common terminal 41, and two outsides of moving plate 5U type shape one end are respectively equipped with clamping lives the protuberance 51 of common terminal 41 lateral surfaces. This moving plate 5 increases by two protuberances 51, make moving plate 5 together go side 41 be linked and packed more firmly, while guaranteeing to assemble, moving plate 5 can not swing, can slippage, improve manufacturing and the reliability of product, guarantee switching function.

In the present embodiment, on base 2 extension spring 7 other ends below be provided with boss 21, pole 6 is connected the below of one end with extension spring 7, pole 6 is in the time of initialization state, and the bottom surface of extension spring 7 is carried on boss 21, thereby while guaranteeing switch assembling, extension spring 7 and pole 6 can not be scattered, and guarantee switching function.

In the present embodiment, Chang Kaiduan 42 and normally closed terminal 43 are in the form of sheets, can conveniently locate in welding process in order to facilitate contact 40, the cross section of terminal 40 adopts stepped, contact 40 can adopt the square body that circular rivet-like or cylindrical shape or cross section are " L " shape, and the working face of circular rivet-like or cylindrical shape contact 40 can be directly welded in the cross-section between terminal; Also can the cross-section between terminal offer cylinder shape groove, as shown in Figure 7, circular rivet-like or cylindrical shape contact and cylinder shape groove join; Or have gap in contact 40 on for the small column periphery welding, the gap plane of small column and the side of terminal are joined, as shown in Figure 8; Thereby the location that greatly facilitates contact 40 when welding, technical process simplifies the operation. Because circular rivet-like or cylindrical shape contact have ripe technical matters at present, comparison is simple. While adopting cross section to be the square body contact 40 of " L " shape, the medial surface of square body and the side of blade terminals join, as shown in Figure 9.

The utility model microswitch structure is reasonable in design, when work, button 3 receives from outside power or stroke, button 3 is pressed pole 6 upper ends downwards, to make pole 6 lower ends move, pole 6 lower ends drive extension spring 7 to move, and extension spring 7 drives moving plate 5 to contact with the associated terminal contact 40 setting, thereby realizes switch conduction or break function.

Above-described embodiment is the preferred version that the utility model is realized, and non-limiting exhaustive, and under same idea, the utility model can also have other variations. It should be noted that, do not departing under the prerequisite of the present utility model design, any apparent replacement is all within the utility model protection domain.

Claims

1. an inching switch, comprise switch case (1) and be arranged on the button (3) in switch case, in switch case, be provided with base (2), common terminal (41) for being connected with external circuit is installed on base, Chang Kaiduan (42) and normally closed terminal (43), on Chang Kaiduan and normally closed terminal, correspondence is provided with contact (40) respectively, moving plate (5) and pole (6) are also installed in switch case, moving plate one end is fixed on common terminal middle part by extension spring (7), the moving plate other end is connected with contact, pole middle part is fixed in common terminal upper portion by the extension spring other end, pole top is butted on button bottom surface, in the time that button receives from outside power or stroke, to make pole one end move, and drive extension spring to move by the other end of pole, extension spring drives moving plate to contact conducting with the associated terminal contact setting,

It is characterized in that: described moving plate one end is U-shaped shape, on common terminal, be provided with two mounting grooves (411) that snap in for moving plate, two outsides of moving plate one end are respectively equipped with clamping and live the protuberance of common terminal lateral surface (51).

2. inching switch according to claim 1, is characterized in that: on described base, the below of the extension spring other end is provided with boss (21), and pole is in the time of initialization state, and the bottom surface of the extension spring other end is carried on boss.

3. inching switch according to claim 2, is characterized in that: in the form of sheets, the working face of contact is positioned at the cross-section between terminal for described Chang Kaiduan and normally closed terminal.

4. inching switch according to claim 3, is characterized in that: the cross section between described terminal is stepped.

5. inching switch according to claim 3, is characterized in that: the cross-section between described terminal has cylinder shape groove.

6. according to the inching switch described in any one in claim 3-5, it is characterized in that: described contact is circular rivet-like, contact has a gap on the small column periphery welding, and the gap plane of small column and the side of blade terminals join.

7. according to the inching switch described in any one in claim 3-5, it is characterized in that: described contact is cylinder, on cylindrical periphery, have a gap, the side of cylindrical gap plane and blade terminals joins.

8. according to the inching switch described in any one in claim 3-5, it is characterized in that: described contact is that cross section is the square body of " L " shape, and the medial surface of square body and the side of blade terminals join.