CN216902615U - Waterproof touch switch - Google Patents

Abstract

The utility model discloses a waterproof light-touch switch, which comprises a light-touch switch shell, wherein a first conductive piece and a second conductive piece which is arranged at the upper end of the first conductive piece and is bent and protruded upwards are arranged in the light-touch switch shell; the utility model provides a waterproof touch switch, and aims to improve the dustproof and waterproof performance of the touch switch.

Description

Waterproof touch switch

Technical Field

The application relates to dabs switch equipment technical field, specifically relates to a waterproof switch that dabs.

Background

The light touch switch is an electronic switch as the name implies, and belongs to the class of electronic components. Further, the tact switch, also called a push switch, first appears in japan [ called: when the sensitive switch is used, the switch is pressed towards the switch operation direction under the condition of meeting the operation force, the switch is closed and switched on, when the pressure is removed, the switch is switched off, and the internal structure of the sensitive switch is switched on and off by the stress change of the metal elastic sheet. The tact switch has advantages of small contact resistance, accurate operation force error, diversified specifications, and the like, and is widely applied to electronic equipment, white appliances, and the like.

According to the structural analysis of the current market products, the waterproof film of the product is mostly found to adopt the traditional glue pasting process, and although the process has lower requirements on product materials, assembly procedures, equipment cost and the like, the waterproof film of the product is dustproof and waterproof, and cannot meet the waterproof requirement of high-end products of high-end customers.

Disclosure of Invention

The utility model mainly aims to solve the problems and provides a waterproof touch switch, and aims to improve the dustproof and waterproof performance of the touch switch.

In order to achieve the purpose, the utility model provides a waterproof light-touch switch which comprises a light-touch switch shell, wherein a first conductive piece and a second conductive piece which is arranged at the upper end of the first conductive piece and is bent and protruded upwards are arranged in the light-touch switch shell, a press handle which is protruded upwards is arranged at the upper end of the second conductive piece, a thin film which seals the press handle and the second conductive piece is arranged at the upper end of the press handle, a switch key column and an upper cover which covers the opening of the light-touch switch shell are arranged at the upper end of the thin film, and when acting force is applied to the switch key column, the second conductive piece can be deformed by contacting with the first conductive piece.

The touch switch further comprises a plastic body arranged in the touch switch shell, the first conductive piece is a conductive terminal, and the plastic body is provided with a mounting groove for accommodating part of the conductive terminal and a via hole for enabling the pin of the conductive terminal to extend out.

Furthermore, the second conductive members are metal elastic pieces, and the number of the metal elastic pieces is multiple groups.

Furthermore, the film pressing handle comprises a circular welding area connected between the film and the pressing handle and an annular welding area connected between the film and the plastic body, and the annular welding area encloses the mounting groove.

Furthermore, the upper cover is provided with a riveting groove, the light-touch switch shell comprises a riveting portion, and the riveting portion is punched and riveted in the riveting groove.

Further, the upper cover is provided with a key pressing groove for accommodating the switch key column to extend out.

Furthermore, the bottom of the plastic body is provided with a glue inlet.

Compared with the prior art, the waterproof touch switch provided by the utility model is internally provided with the press handle, is welded with the waterproof film by adopting a laser welding process, and is sealed with the second conductive piece, so that the design is favorable for improving the dustproof and waterproof performance of a product, the connection stability of the product is improved, and the service life of the product is further ensured.

Drawings

Fig. 1 is a schematic perspective view of a tact switch disclosed in the present application.

FIG. 2 is an internal cross-sectional view of a tact switch as disclosed herein.

Fig. 3 is an exploded view of a tact switch as disclosed in the present application.

Fig. 4 is a schematic structural diagram of a combination of a switch key post and an upper cover disclosed in the present application.

Fig. 5 is an assembly structure diagram of the base assembly.

Fig. 6 is a connection structure diagram of the first conductive member and the plastic body.

Fig. 7 is a schematic structural view of a bottom glue inlet of the plastic body.

FIG. 8 is a schematic diagram of the welding region of the base assembly.

Reference numerals shown in the drawings:

10. a tact switch housing; 11. a first conductive member; 12. a second conductive member; 13. a pressing handle; 14. a film; 15. a switch key post; 16. an upper cover; 17. a plastic body; 18. a base assembly; 19. an upper cover assembly; 101. a circular weld area; 102. an annular welding zone; 103. mounting grooves; 104. riveting the groove; 105. a riveting part; 106. pressing a key slot; 107. and a glue inlet.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In some embodiments of the present invention, as shown in fig. 1 to 8, a waterproof tact switch includes a tact switch case 10, the tact switch case 10 has a first conductive member 11 and a second conductive member 12 disposed at an upper end of the first conductive member 11 and bent and protruded upward, wherein the first conductive member 11 is a conductive terminal in this embodiment and includes a plurality of pins exposed to the outside, the second conductive member 12 is a metal elastic sheet, the number of the second conductive member is three, an upward protruded pressing handle 13 is disposed at an upper end of the metal elastic sheet, a waterproof film 14 sealing the pressing handle 13 and the second conductive member 12 is disposed at an upper end of the pressing handle 13, and a switch key post 15 and an upper cover 16 covering an opening of the tact switch case 10 are disposed at an upper end of the film 14; in the above embodiment, the metal elastic sheet is located at the upper end of the conductive part of the conductive terminal, when acting force is applied to the switch key post 15, the pressing handle is pressed, the central point of the elastic sheet is concave, and deforms to contact the circuit of the first conductive member 11 (i.e. the conductive terminal), so as to form a loop, and the whole product can work normally when current passes through the loop; when the pressure is relieved, the elastic sheet is reset, the switch is switched off, and the first conductive piece 11 and the second conductive piece 12 which are enclosed by the waterproof film 14 can be protected from external dust or liquid.

As shown in fig. 1 and 3, the assembly process includes that the upper cover 16 in the above embodiment is provided with the riveting groove 104 at the end corner, the tact switch case 10 is substantially U-shaped, the extending portion thereof is the bendable riveting portion 105, and the riveting portion 105 is punched and riveted on the riveting groove 104 by a riveting machine during assembly, so that the assembly mode is firmer and can meet the product strength reliability test.

Referring to fig. 3, the upper cover 16 has a key slot 106 for allowing the switch key post 15 to extend out, so that the switch key post 15 can be displaced by pressing the switch key post 15 when in use.

Fig. 4 is a schematic view of a combination structure of the switch key post 15 and the upper cover 16.

Fig. 5 is a schematic assembly structure diagram of the base assembly 18, which includes a pressing handle 13, a high temperature transparent film 14, a spring (second conductive member 12), and a plastic body 17 with a metal terminal (first conductive member 11). The plastic body 17 is assembled in sequence, then the spring plate is assembled, the pressing handle 13 and the high-temperature transparent film 14 are placed, finally laser welding is carried out, and the pressing handle 13 and the spring plate are sealed in the plastic body 17 by the high-temperature transparent film 14.

As shown in fig. 6, the light touch switch further includes a plastic body 17 disposed in the light touch switch housing 10, wherein the plastic body 17 has a mounting groove 103 for receiving a portion of the conductive terminal and a via hole for extending a pin of the conductive terminal.

As shown in fig. 7, the bottom of the plastic body 17 is provided with a glue inlet 107, and the design can prevent the metal terminal from being exposed by adopting a bottom glue inlet manner, so as to further ensure the waterproof performance of the product.

As shown in fig. 8, a circular welding area 101 is formed between the film 14 and the pressing handle 13, an annular welding area 102 is formed between the film 14 and the plastic body 17, and the annular welding area 102 encloses the mounting groove 103; by welding the waterproof film with the first conductive piece 11 and the second conductive piece 12 by using a laser welding process, the components such as the first conductive piece and the second conductive piece are sealed, so that the dustproof and waterproof performance of the product is improved, and the connection stability of the product is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (7)

1. The waterproof touch switch is characterized by comprising a touch switch shell, wherein a first conductive piece and a second conductive piece which is arranged at the upper end of the first conductive piece and is bent and protruded upwards are arranged in the touch switch shell, a pressing handle which is protruded upwards is arranged at the upper end of the second conductive piece, a film which seals the pressing handle and the second conductive piece is arranged at the upper end of the pressing handle, a switch key column and an upper cover which covers an opening of the touch switch shell are arranged at the upper end of the film, and when acting force is applied to the switch key column, the second conductive piece can be contacted with the first conductive piece to deform.

2. The waterproof tact switch according to claim 1, further comprising a plastic body disposed in the tact switch case, wherein the first conductive member is a conductive terminal, and the plastic body has a mounting groove for receiving a portion of the conductive terminal and a via hole for extending a pin of the conductive terminal.

3. The waterproof tact switch according to claim 1, wherein the second conductive member is a plurality of metal spring pieces.

4. The waterproof tact switch according to claim 2, further comprising a circular welding area for connection between said membrane and said press handle, and an annular welding area for connection between said membrane and said plastic body, said annular welding area enclosing said mounting groove.

5. The waterproof tact switch according to claim 1, wherein the upper cover is provided with a riveting groove, and the tact switch case includes a riveting portion that is press-riveted in the riveting groove.

6. The waterproof tact switch according to claim 1, wherein said upper cover has a key groove for allowing said switch key post to protrude.

7. The waterproof tact switch according to claim 2, wherein a glue inlet is formed at the bottom of the plastic body.

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