CN220569572U - Long-life tact switch - Google Patents

Abstract

The utility model relates to a long-service-life tact switch, which comprises a shell, wherein a cover body is fixedly arranged at the top of the shell, a cover plate is fixedly arranged at the top in the cover body, positioning blocks are respectively and fixedly arranged at two sides of the bottom of the cover plate, the positioning blocks are fixed on the inner wall of the shell through screwing positioning screws, through holes are formed in the top of the shell, buttons are arranged in the through holes and penetrate through the cover plate and extend downwards, a bottom plate is fixedly arranged at the bottom of the button, a contact block is fixedly arranged at the bottom of the bottom plate, an elastic sheet is arranged at the lower part in the shell, the elastic sheet is positioned under the contact block, connecting rods are respectively and fixedly arranged at two sides of the bottom plate, a telescopic rod is fixedly arranged at one end of the connecting rod, which is far away from the bottom plate, and is vertically arranged with the connecting rods.

Description

Long-life tact switch

Technical Field

The utility model relates to the technical field of tact switches, in particular to a long-service-life tact switch.

Background

The tact switch is an electronic switch, belongs to the class of electronic components, and is composed of: the insert, the base, the spring plate, the button and the cover plate form the waterproof type touch switch, wherein the waterproof type touch switch is formed by adding a layer of polyimide film (shown in the figure) on the spring plate, the touch switch has the advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, white household appliances and the like, such as: audio-visual products, digital products, remote controllers, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, currency examine pens, laser pen keys, and the like. Because the touch switch is directly replaced by conductive rubber or a metal spring piece of the dome switch for large-scale equipment and high-load buttons under environmental conditions, such as medical equipment, television remote controllers and the like.

When the existing tact switch is welded on a circuit board at high temperature and subjected to drop test and life test, the product cover plate and the base body are separated, so the utility model provides the long-life tact switch to solve the problems.

Disclosure of Invention

In view of the foregoing drawbacks of the prior art, an object of the present utility model is to provide a long-life tact switch.

In order to achieve the above purpose, the utility model provides a long-life tact switch, which comprises a shell, wherein a cover body is fixedly arranged at the top of the shell, a cover plate is fixedly arranged at the top in the cover body, positioning blocks are respectively fixedly arranged at two sides of the bottom of the cover plate, the positioning blocks are fixed on the inner wall of the shell through screwing positioning screws, a through hole is formed in the top of the shell, a button is arranged in the through hole, the button penetrates through the cover plate and extends downwards, a bottom plate is fixedly arranged at the bottom of the button, a contact block is fixedly arranged at the bottom of the bottom plate, a spring piece is arranged at the lower part in the shell, and the spring piece is positioned right below the contact block.

Preferably, the connecting rods are fixedly arranged on two sides of the bottom plate respectively, one end, away from the bottom plate, of each connecting rod is fixedly provided with a telescopic rod, each telescopic rod is perpendicular to the corresponding connecting rod, each telescopic rod is fixedly arranged in a mounting groove, and each mounting groove is longitudinally formed in the bottom of the corresponding cover plate.

Preferably, inserts are fixedly arranged at four corners of the bottom of the shell respectively, and the cover plate and the shell are integrally formed.

Preferably, the shell is the same as the cover body in manufacturing material, the shell comprises a wear-resistant layer, a shell layer is fixedly arranged on the inner side of the wear-resistant layer, a reinforcing layer is fixedly arranged on the inner side of the shell layer, and an insulating layer is fixedly arranged on the inner side of the reinforcing layer.

Preferably, the reinforcing layer is internally provided with a hollow groove, and a plurality of reinforcing ribs are uniformly and fixedly arranged in the hollow groove.

Preferably, the button comprises an anti-corrosion layer, a first rubber layer is fixedly arranged at the bottom of the anti-corrosion layer, a connecting block is fixedly arranged at the bottom of the first rubber layer, and a second rubber layer is fixedly arranged at the bottom of the connecting block.

Preferably, waterproof films are fixedly arranged on two sides of the anti-corrosion layer, the first rubber layer, the connecting block and the second rubber layer.

Preferably, a waterproof layer is fixed at the bottom of the second rubber layer, and the cover body is detachably mounted on the shell.

Compared with the prior art, the utility model has the beneficial effects that:

through the apron, locating piece and the set screw isotructure that set up, apron and casing integrated into one piece set up, and the rethread screws the fixed locating piece of holding of set screw, locating piece and apron fixed connection, further fix the apron promptly, improved apron connection's fastness, solved current tact switch high temperature welding after the circuit board, when doing drop test and life test, the product apron has the problem of phenomenon of separation with the base body, also is favorable to promoting the life of product.

Through the telescopic link and the connecting rod isotructure that set up, guaranteed that the button can be vertical reciprocate, prevent that the button skew from producing the phenomenon of blocking from appearing.

Through the wearing layer that sets up, improved the wear resistance of casing, through enhancement layer and the strengthening rib that set up, improved the intensity of casing, through the insulating layer that sets up, guaranteed the insulating properties of casing, through the anticorrosive coating that sets up, improved the anticorrosive properties of button, through waterproof layer and the waterproof film that sets up, improved the waterproof performance of button.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments of the present utility model, it being apparent that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without the exercise of inventive effort for a person of ordinary skill in the art.

Fig. 1 is a perspective view provided by the present utility model.

Fig. 2 is a top view provided by the present utility model.

Fig. 3 is a cross-sectional view provided by the present utility model.

Fig. 4 is a schematic view of a housing structure provided by the present utility model.

Fig. 5 is a schematic view of a button structure provided by the present utility model.

Reference numerals illustrate:

1. a screw; 2. a cover body; 3. a cover plate; 4. a button; 41. a second rubber layer; 42. a connecting block; 43. a first rubber layer; 44. an anti-corrosion layer; 5. a positioning block; 6. an insert; 7. a connecting rod; 8. a bottom plate; 9. a spring plate; 10. a touch block; 11. a through hole; 12. a mounting groove; 13. a telescopic rod; 14. a housing; 141. a wear-resistant layer; 142. a shell layer; 143. a reinforcing layer; 144. an insulating layer; 15. reinforcing ribs; 16. a hollow groove; 17. a waterproof film; 18. and a waterproof layer.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Referring to fig. 1-5, the utility model provides a long-life tact switch, which comprises a housing 14, wherein a cover body 2 is fixedly arranged at the top of the housing 14, a cover plate 3 is fixedly arranged at the top in the cover body 2, positioning blocks 5 are respectively fixedly arranged at two sides of the bottom of the cover plate 3, the positioning blocks 5 are fixed on the inner wall of the housing 14 by screwing a positioning screw 1, a through hole 11 is formed at the top of the housing 14, a button 4 is arranged in the through hole 11, the button 4 penetrates through the cover plate 3 and extends downwards, a bottom plate 8 is fixedly arranged at the bottom of the button 4, a contact block 10 is fixedly arranged at the bottom of the bottom plate 8, a spring plate 9 is arranged at the lower part in the housing 14, connecting rods 7 are respectively fixedly arranged at two sides of the bottom plate 8, one end of the connecting rods 7 far away from the bottom plate 8 is fixedly provided with a telescopic rod 13, the telescopic rod 13 is vertically arranged with the connecting rods 7, the telescopic rod 13 is fixedly arranged in the mounting groove 12, the mounting groove 12 is longitudinally formed in the bottom of the cover plate 3, the four corners of the bottom of the shell 14 are respectively fixedly provided with the insert 6, the cover plate 3 and the shell 14 are integrally formed and arranged, the cover body 2 is detachably arranged on the shell 14, the cover plate 3, the positioning block 5, the positioning screw 1 and the like are integrally formed and arranged, the positioning block 5 is fixedly connected with the cover plate 3 through screwing the positioning screw 1, namely the cover plate 3 is further fixed, the connection firmness of the cover plate 3 is improved, the problem that the cover plate and the base body of a product are separated when a drop test and a life test are performed after the existing tact switch is welded on a circuit board at high temperature is solved, and the service life of the product is prolonged; through the structures of the telescopic rod 13, the connecting rod 7 and the like, the button 4 can vertically move up and down, and the phenomenon that the button 4 is blocked due to deflection is prevented;

referring to fig. 3-4, the materials for manufacturing the shell 14 and the cover 2 are the same, the shell 14 includes a wear-resistant layer 141, a shell layer 142 is fixedly arranged on the inner side of the wear-resistant layer 141, a reinforcing layer 143 is fixedly arranged on the inner side of the shell layer 142, an insulating layer 144 is fixedly arranged on the inner side of the reinforcing layer 143, a hollow groove 16 is formed on the inner side of the reinforcing layer 143, a plurality of reinforcing ribs 15 are uniformly and fixedly arranged in the hollow groove 16, the wear-resistant performance of the shell 14 is improved through the arranged wear-resistant layer 141, the strength of the shell 14 is improved through the arranged reinforcing layer 143 and the reinforcing ribs 15, and the insulating performance of the shell 14 is ensured through the arranged insulating layer 144;

referring to fig. 3 and 5, the button 4 includes an anti-corrosion layer 44, a first rubber layer 43 is fixedly provided at the bottom of the anti-corrosion layer 44, a connecting block 42 is fixedly provided at the bottom of the first rubber layer 43, a second rubber layer 41 is fixedly provided at the bottom of the connecting block 42, waterproof films 17 are fixedly provided at both sides of the anti-corrosion layer 44, the first rubber layer 43, the connecting block 42 and the second rubber layer 41, a waterproof layer 18 is fixedly provided at the bottom of the second rubber layer 41, the anti-corrosion performance of the button 4 is improved through the provided anti-corrosion layer 44, and the waterproof performance of the button 4 is improved through the provided waterproof layer 18 and the provided waterproof films 17.

The working principle and the using method of the utility model are as follows:

the cover plate 3 and the shell 14 are integrally formed, the positioning block 5 is fixed by screwing the positioning screw 1, and the positioning block 5 is fixedly connected with the cover plate 3, namely the cover plate 3 is further fixed, so that the connection firmness of the cover plate 3 is improved; through the structures of the telescopic rod 13, the connecting rod 7 and the like, the button 4 can vertically move up and down, and the phenomenon that the button 4 is blocked due to deflection is prevented; the wear-resisting layer 141 that sets up has improved the wear resistance of casing 14, through enhancement layer 143 and the strengthening rib 15 that set up, has improved the intensity of casing 14, through the insulating layer 144 that sets up, has guaranteed the insulating properties of casing 14, and the anticorrosive coating 44 that sets up has improved the anticorrosive properties of button 4, through waterproof layer 18 and waterproof film 17 that set up, has improved the waterproof performance of button 4.

The foregoing is merely illustrative of the present utility model and is not to be construed as limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; all equivalent structures or equivalent flow changes made by the specification and the attached drawings of the utility model or directly or indirectly applied to other related technical fields are included in the protection scope of the utility model.

Claims (7)

1. A long life tact switch characterized by: including the casing, the fixed lid that is provided with in casing top, the fixed apron that is provided with in lid bottom both sides are fixed respectively and are provided with the locating piece, the locating piece is fixed through screwing set screw the inner wall of casing, the through-hole has been seted up at the casing top, be provided with the button in the through-hole, the button wears to establish the apron and downwardly extending, the fixed bottom plate that is provided with in button bottom, the fixed touch pad that is provided with in bottom plate bottom, the shell fragment is installed to the below in the casing, the shell fragment is located under the touch pad, the fixed connecting rod that is provided with respectively in bottom plate both sides, the connecting rod is kept away from the fixed telescopic link that is provided with of one end of bottom plate, the telescopic link with the connecting rod sets up perpendicularly, the telescopic link is fixed to be set up in the mounting groove, the mounting groove is vertically seted up the bottom of apron.

2. A long life tact switch in accordance with claim 1, wherein: inserts are fixedly arranged at four corners of the bottom of the shell respectively, and the cover plate and the shell are integrally formed.

3. A long life tact switch in accordance with claim 2, wherein: the shell body and the manufacturing material of the cover body are the same, the shell body comprises a wear-resistant layer, a shell layer is fixedly arranged on the inner side of the wear-resistant layer, a reinforcing layer is fixedly arranged on the inner side of the shell layer, and an insulating layer is fixedly arranged on the inner side of the reinforcing layer.

4. A long life tact switch in accordance with claim 3, wherein: empty slots are formed in the inner side of the reinforcing layer, and a plurality of reinforcing ribs are uniformly and fixedly arranged in the empty slots.

5. The long life tact switch of claim 4, further comprising: the button comprises an anticorrosive layer, a first rubber layer is fixedly arranged at the bottom of the anticorrosive layer, a connecting block is fixedly arranged at the bottom of the first rubber layer, and a second rubber layer is fixedly arranged at the bottom of the connecting block.

6. The long life tact switch of claim 5, further comprising: waterproof films are fixedly arranged on two sides of the anti-corrosion layer, the first rubber layer, the connecting block and the second rubber layer.

7. The long life tact switch of claim 6, wherein: the waterproof layer is fixed at the bottom of the second rubber layer, and the cover body is detachably arranged on the shell.