CN219321220U

CN219321220U - Dustproof and waterproof tact switch

Info

Publication number: CN219321220U
Application number: CN202320293627.5U
Authority: CN
Inventors: 陈海斌
Original assignee: Zhejiang Zhanyue Electronic Technology Co ltd
Current assignee: Zhejiang Zhanyue Electronic Technology Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-07-07
Anticipated expiration: 2033-02-17

Abstract

The utility model provides a dustproof and waterproof tact switch, comprising: the base is provided with a mounting groove suitable for mounting the elastic sheet and the conductive component, and the edge of an opening of the mounting groove is provided with an annular step; the dustproof film is suitable for covering the opening of the mounting groove, and the edge of the dustproof film is adhered to the annular step. The dustproof film can seal the mounting groove, prevent external dust or water from entering the mounting groove and affecting the elastic sheet and the conductive component, thereby ensuring normal operation of the switch and prolonging the service life.

Description

Dustproof and waterproof tact switch

Technical Field

The utility model relates to the technical field of tact switches, in particular to a dustproof and waterproof tact switch.

Background

The touch switch is also called a key switch, has the advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to the fields of electronic equipment and white household appliances. The touch switch is small in size, when external dust or water enters the inside of the touch switch, the influence on the elastic sheet and the contact inside the switch is easy to cause, the normal operation of the switch is influenced, and the service life of the switch is shortened.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects that the tact switch in the prior art is easily influenced by dust or water and has short service life, so as to provide the dustproof and waterproof tact switch with long service life.

To this end, the utility model provides a dust-and water-repellent tact switch comprising: the base is provided with a mounting groove suitable for mounting the elastic sheet and the conductive component, and the edge of an opening of the mounting groove is provided with an annular step; the dustproof film is suitable for covering the opening of the mounting groove, and the edge of the dustproof film is adhered to the annular step.

The spring plate is in an arch structure.

The conductive assembly includes: the first conductive part is provided with a first conductive part with an arc-shaped structure and a first lead part which is bent and connected with the first conductive part, two ends of the first conductive part are respectively provided with two first contacts, and the two first contacts are propped against the edge of the elastic piece of the arc-shaped structure; the second conductive part is provided with a second conductive part positioned in the middle of the first conductive part of the arc-shaped structure and a second lead part connected with the second conductive part in a bending way, a second contact is arranged on the second conductive part, and the second contact is positioned under the middle part of the elastic piece of the arc-shaped structure.

The bottom surfaces of the first pin part and the second pin part are flush with the bottom surface of the base.

The edge of the second conductive part is provided with a bending part which is bent downwards and embedded into the base.

At least two spring plates are vertically overlapped.

The cover plate comprises a cover plate main body and clamping feet arranged at four corners of the cover plate main body, clamping grooves are formed between the clamping feet and the cover plate main body, and protruding blocks connected with the clamping grooves in an adapting mode are arranged at four corners of the top of the base.

The protruding block is provided with an inclined plane for guiding and inserting the clamping pin.

A positioning structure is arranged between the cover plate and the base and comprises first positioning grooves arranged on the front side and the rear side of the base and first positioning blocks which are arranged on the cover plate and are connected with the first positioning grooves in an adaptive mode.

The positioning structure also comprises two second positioning blocks arranged on the left side and the right side of the top surface of the base, and second positioning grooves arranged on the bottom surface of the cover plate and connected with the second positioning blocks in an adaptive manner.

The technical scheme of the utility model has the following advantages:

1. the utility model provides a dustproof and waterproof tact switch, which comprises: the base is provided with a mounting groove suitable for mounting the elastic sheet and the conductive component, and the edge of an opening of the mounting groove is provided with an annular step; the dustproof film is suitable for covering the opening of the mounting groove, and the edge of the dustproof film is adhered to the annular step. The dustproof film can seal the mounting groove, prevent external dust or water from entering the mounting groove and affecting the elastic sheet and the conductive component, thereby ensuring normal operation of the switch and prolonging the service life.

2. According to the dustproof and waterproof tact switch provided by the utility model, the first conductive part is provided with the first conductive part with the arc-shaped structure and the first lead part which is bent and connected with the first conductive part, two first contacts are respectively arranged at two ends of the first conductive part and are propped against the edge of the elastic sheet with the arch-shaped structure, and the two first contacts can better support the elastic sheet, so that the contact reliability is improved.

3. According to the dustproof and waterproof tact switch provided by the utility model, the bottom surfaces of the first pin part and the second pin part are flush with the bottom surface of the base, so that the height dimension of the tact switch is reduced, and the requirement of miniaturization is met.

4. According to the dustproof and waterproof tact switch provided by the utility model, the edge of the second conductive part is provided with the bending part which is bent downwards and is embedded into the base, so that the second conductive part and the base are assembled more firmly.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a dust-and-water-proof tact switch of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of an exploded structure of a tact switch;

FIG. 4 is a schematic view of an assembly of a base and a dust-proof membrane;

fig. 5 is a perspective view of the conductive assembly.

Reference numerals illustrate: 1. a base; 2. a spring plate; 3. a mounting groove; 4. an annular step; 5. a dust-proof film; 6. a first conductive member; 7. a first conductive portion; 8. a first lead portion; 9. a first contact; 10. a second conductive member; 11. a second conductive portion; 12. a second lead part; 13. a second contact; 14. a bending part; 15. a cover plate; 16. a cover plate main body; 17. a clamping foot; 18. a clamping groove; 19. a bump; 20. an inclined plane; 21. a first positioning groove; 22. a first positioning block; 23. a second positioning block; 24. and a second positioning groove.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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 be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Examples

The present embodiment provides a dustproof and waterproof tact switch, as shown in fig. 1 and 3, including a base 1, a cover plate 15, a dustproof film 5, a spring plate 2, and a conductive component.

The base 1, as shown in fig. 2, has a mounting groove 3 suitable for mounting the elastic sheet 2 and the conductive component, the opening edge of the mounting groove 3 is provided with an annular step 4, in this embodiment, the elastic sheet 2 is in an arch structure, and the number of the elastic sheets can be 1, 2, 3 or more, and a plurality of elastic sheets 2 can be stacked up and down.

As shown in fig. 4, a dust-proof film 5 is adapted to cover the opening of the mounting groove 3, and its edge is bonded to the annular step 4.

The conductive assembly is shown in fig. 5, and comprises a first conductive piece 6 and a second conductive piece 10, wherein the first conductive piece 6 is provided with a first conductive part 7 with an arc-shaped structure and a first lead part 8 which is connected with the first conductive part 7 in a bending way, two ends of the first conductive part 7 are respectively provided with two first contacts 9, and the two first contacts 9 are propped against the edge of the elastic sheet 2 with the arc-shaped structure; the second conductive member 10 is provided with a second conductive part 11 positioned in the middle of the first conductive part 7 in an arc structure, and a second lead part 12 bent and connected with the second conductive part 11, the second conductive part 11 is provided with a second contact 13, and the second contact 13 is positioned under the middle part of the elastic sheet 2 in the arc structure. The bottom surfaces of the first lead part 8 and the second lead part 12 are flush with the bottom surface of the base 1, and the edge of the second conductive part 11 is provided with a bending part 14 which is bent downwards and embedded into the base 1.

The cover plate 15 is arranged above the base 1, as shown in fig. 1 and 3, the cover plate 15 comprises a cover plate main body 16 and clamping legs 17 arranged at four corners of the cover plate main body 16, clamping grooves 18 are formed between the clamping legs 17 and the cover plate main body 16, protruding blocks 19 which are connected with the clamping grooves 18 in an adapting mode are arranged at four corners of the top of the base 1, and the protruding blocks 19 are provided with inclined planes 20 for guiding and inserting the clamping legs 17. A positioning structure is arranged between the cover plate 15 and the base 1, and comprises a first positioning groove 21 arranged on the front side and the rear side of the base 1, and a first positioning block 22 arranged on the cover plate 15 and connected with the first positioning groove 21 in an adaptive manner. The positioning structure further comprises two second positioning blocks 23 arranged on the left side and the right side of the top surface of the base 1, and second positioning grooves 24 arranged on the bottom surface of the cover plate 15 and connected with the second positioning blocks 23 in an adaptive manner.

The utility model provides a dustproof and waterproof tact switch, which comprises: the base 1 is provided with a mounting groove 3 suitable for mounting the elastic sheet 2 and the conductive component, and the opening edge of the mounting groove 3 is provided with an annular step 4; the dustproof film 5 is adapted to cover the opening of the installation groove 3, and its edge is bonded to the annular step 4. Like this dustproof membrane 5 can seal mounting groove 3, prevents that external dust or water from entering into mounting groove 3 in to shell fragment 2 and conductive component have the influence to guarantee the normal work of switch, prolonged life.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A dust-proof and water-proof tact switch, comprising:

the base (1) is provided with a mounting groove (3) suitable for mounting the elastic sheet (2) and the conductive component, and an annular step (4) is arranged at the edge of an opening of the mounting groove (3);

and a dustproof film (5) which is suitable for covering the opening of the mounting groove (3) and the edge of which is adhered to the annular step (4).

2. The dust-and-water-proof tact switch according to claim 1, characterized in that the spring plate (2) has an arch structure.

3. The dust and water resistant tact switch of claim 2, wherein the conductive assembly comprises:

the first conductive piece (6) is provided with a first conductive part (7) with an arc-shaped structure and a first lead part (8) which is connected with the first conductive part (7) in a bending way, two ends of the first conductive part (7) are respectively provided with two first contacts (9), and the two first contacts (9) are propped against the edge of the elastic sheet (2) with the arc-shaped structure;

the second conductive part (10) is provided with a second conductive part (11) positioned in the middle of the first conductive part (7) of the arc-shaped structure, and a second lead part (12) which is bent and connected with the second conductive part (11), a second contact (13) is arranged on the second conductive part (11), and the second contact (13) is positioned under the middle part of the elastic sheet (2) of the arc-shaped structure.

4. A dust and water proof tact switch according to claim 3, characterized in that the bottom surfaces of the first and second leg parts (8, 12) are both flush with the bottom surface of the base (1).

5. A dust and water proof tact switch according to claim 3 or 4, characterized in that the edge of the second conductive part (11) has a bent part (14) bent downwards, embedded inside the base (1).

6. The dustproof and waterproof tact switch according to claim 1, wherein at least two spring plates (2) are vertically overlapped.

7. The dustproof and waterproof tact switch according to claim 1, further comprising a cover plate (15) arranged above the base (1), wherein the cover plate (15) comprises a cover plate main body (16) and clamping feet (17) arranged at four corners of the cover plate main body (16), clamping grooves (18) are formed between the clamping feet (17) and the cover plate main body (16), and protruding blocks (19) which are connected with the clamping grooves (18) in an adapting mode are arranged at the four corners of the top of the base (1).

8. The dust and water proof tact switch according to claim 7, characterized in that the projection (19) has a slope (20) for guiding insertion of the catch (17).

9. The dustproof and waterproof tact switch according to claim 7 or 8, characterized in that a positioning structure is arranged between the cover plate (15) and the base (1), the positioning structure comprises first positioning grooves (21) arranged on the front side and the rear side of the base (1), and first positioning blocks (22) arranged on the cover plate (15) and connected with the first positioning grooves (21) in an adaptive manner.

10. The dustproof and waterproof tact switch according to claim 9, wherein the positioning structure further comprises two second positioning blocks (23) arranged on the left side and the right side of the top surface of the base (1), and second positioning grooves (24) arranged on the bottom surface of the cover plate (15) and connected with the second positioning blocks (23) in an adaptive manner.