CN215118711U

CN215118711U - Push switch

Info

Publication number: CN215118711U
Application number: CN202120466136.7U
Authority: CN
Inventors: 林锡埼
Original assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Current assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-12-10
Anticipated expiration: 2031-03-03

Abstract

The utility model relates to a push switch, include: a base body, which is provided with an accommodating space, two terminal grooves and a sealing flange; a terminal set disposed in the accommodating space of the base, the terminal set including a first terminal and a second terminal, the first terminal having a plurality of first contact portions and a first welding portion, the second terminal having a second contact portion and a second welding portion, and the second contact portion being located between the plurality of first contact portions; the two conductive elastic sheets are overlapped and arranged at the top of the terminal group, each conductive elastic sheet is provided with a pressing part and an abutting part, and the two conductive elastic sheets are in electric connection after abutting against the first terminal and the second terminal; a key, which comprises a base and an elastic piece; a cover body, which is provided with a through hole and a plurality of limiting parts, the structure is adopted to achieve the purposes of waterproof, dustproof and quiet operation of the push switch, and low failure rate and long service life.

Description

Push switch

Technical Field

The present invention relates to a push switch, and more particularly to a push switch having a sealing structure formed integrally to achieve waterproof, dustproof and quiet actuation, and to extend the life of the push switch, thereby reducing the failure probability.

Background

In recent electronic technology, electronic components are becoming smaller and smaller, and smaller button designs can provide more applications and changes, such as hiding buttons in electronic products, such a push button design may be referred to as a push switch (or a microswitch) which has a minute contact gap and a snap action mechanism, a contact mechanism which performs a switching operation with a predetermined stroke and a predetermined force, and is covered with a case, a switch having a driving rod outside, and the push switch can be applied to various electronic products, such as air conditioner switch, microwave oven, small electric cooker, communication equipment and water heater, etc. can produce ON/OFF electronic signal by means of small mechanical switch structure, and can be hidden in the plurality of products through the miniaturized press switch, thereby improving the appearance of the products.

The structure design of the press switch is that a seat body is provided with a containing space which can contain a plurality of terminals, and a pressing part pushes a conductive elastic sheet under the pressing part to contact a plurality of contact parts ON the plurality of terminals to make the plurality of terminals generate electrical connection so as to switch the ON/OFF state of the electronic product, the press switch design does not include a dustproof and waterproof design, so that the condition of short circuit or poor contact of the press switch can be caused in an environment with heavy water vapor or a room with more accumulated dust, and the press switch does not have a design with a noise reduction function, redundant sound is generated when the press switch is pressed again, the press switch is inconvenient to use in a place needing silence, and if a user of the press switch does not generate good press hand feeling during pressing, more strength is often applied to press the press switch again, the service life of the push switch is reduced, and how to avoid the above problems is to be solved.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above problems and disadvantages, the present invention provides a push switch that collects relevant information and designs a structure of the push switch through multi-aspect evaluation and consideration.

In order to achieve the above object, the utility model adopts the following technical scheme:

a push switch, comprising:

the base body is provided with an accommodating space, the accommodating space is internally provided with a first terminal groove and a second terminal groove in a concave manner, the second terminal groove is arranged between the first terminal grooves, and the top of the base body is provided with a sealing structure;

a terminal set disposed in the first terminal groove and the second terminal groove in the accommodation space of the base, the terminal set including a first terminal and a second terminal, the first terminal having a plurality of first contact portions, one side of the first terminal having a first welding portion extending and bending to the bottom, the second terminal having a second contact portion, the other side of the second contact portion having a second welding portion extending and bending to the bottom, and the second contact portion being located between the plurality of first contact portions;

the two conductive elastic sheets are overlapped and arranged at the top of the terminal group, an arched pressing part is formed on the central surface of the two conductive elastic sheets, at least one abutting part extends outwards from the periphery of the pressing part, and the abutting part abuts against the tops of the plurality of first contact parts;

a key, which is arranged on the top of the two conductive elastic sheets and comprises a base and an elastic piece, wherein the elastic piece is positioned in the center of the base, the base is abutted against the sealing structure of the seat body, the top of the elastic piece is provided with a pressing part, and the bottom of the elastic piece is provided with a pressing part which pushes the two conductive elastic sheets to the bottom; and

and the cover body is assembled at the top of the seat body and is provided with a through hole for the top of the elastic piece to penetrate through.

The push switch, wherein: the sealing structure of the base body is a sealing flange which is supported against the base.

The push switch, wherein: the sealing flange and the seat body are of an integrally formed structure.

The push switch, wherein: the two conductive elastic sheets have the same structure and are arranged on the first contact part in an aligned mode.

The push switch, wherein: at least one convex block is arranged on each side of the seat body, a fastening groove is concavely arranged at the bottom of the at least one convex block, fastening parts are respectively arranged on each side of the cover body, fastening holes for the plurality of convex blocks on each side of the seat body to penetrate and position are concavely arranged on the two fastening parts, a positioning block for the fastening groove at the bottom of the at least one convex block to be fastened and fixed is arranged at the bottom of the two fastening parts, and a plurality of limiting parts abutted against the outer edge of the base are arranged at the outer edge of the cover body.

The push switch, wherein: the second terminal groove in the housing is deeper than the first terminal groove to form a structure with long-stroke movement.

The push switch, wherein: the bent part of the first welding part, which extends and bends towards the bottom of one side of the first contact part, is provided with a first welding surface.

The push switch, wherein: the bent part of the second welding part, which extends and bends towards the bottom of one side of the second contact part, is provided with a second welding surface.

The push switch, wherein: the terminal set is assembled in the accommodating space of the base by an embedding and injecting method.

The push switch, wherein: the seat body is in a rectangular groove structure in appearance.

The utility model discloses rely on aforementioned constitution to reach waterproof dustproof and have effectively to fall the efficiency of making an uproar.

The utility model discloses a two welding faces can provide a smooth welded surface, make the user need not frequently adjust two weld parts on this terminal again for welding this switch.

The utility model discloses a this second terminal groove is darker than this first terminal groove in order to form the structure that has the long stroke to remove, and the cooperation overlaps this two electrically conductive shell fragments that set up and can increase this press switch press down and feel.

Drawings

Fig. 1 is a perspective view of the push switch of the present invention.

Fig. 2 is an exploded perspective view of the push switch of the present invention.

Fig. 3 is another exploded perspective view of the push switch of the present invention.

Fig. 4 is a side view cross-sectional structure of the push switch of the present invention.

Description of reference numerals: 1-a seat body; 10-a containing space; 11-first terminal slot; 12-a second terminal slot; 13-sealing flange; 14-a bump; 140-a catching groove; 15-positioning grooves; 2-terminal group; 21-a first terminal; 211 — a first contact; 212-first weld; 2121-a first bonding surface; 22-a second terminal; 221-a second contact; 222-a second weld; 2221-second weld face; 3-a conductive elastic sheet; 31-a pressing part; 32-an abutment; 4-pressing a key; 41-a base; 42-an elastic member; 421-a pressing part; 422-pressing part; 5-cover body; 50-punching; 51-a limiting part; 52-a snap-fit portion; 520-a buttonhole; 521-locating block.

Detailed Description

Referring to fig. 1 to 4, the push switch of the present invention is shown in a three-dimensional appearance, a three-dimensional exploded view, another three-dimensional exploded view and a side-view profile structure, and the push switch of the present invention mainly includes a base 1, a terminal set 2, two conductive elastic pieces 3, a button 4 and a cover 5, and the connection relationship between the above components is as follows:

the seat body 1 is provided with an accommodating space 10 inside, a first terminal groove 11 and a second terminal groove 12 are concavely arranged at the bottom of the accommodating space in the seat body 1, the second terminal groove 12 is arranged between the first terminal grooves 11, a raised sealing flange 13 is arranged at the top of the seat body 1, and the appearance of the seat body 1 is of a rectangular structure.

The terminal set 2 is disposed in the first terminal groove 11 and the second terminal groove 12 in the base 1, the terminal set 2 includes a first terminal 21 and a second terminal 22, the first terminal 21 has a plurality of first contact portions 211, one side of the first terminal 21 has a first soldering portion 212 extending and bending toward the bottom, one side of the second terminal 22 has a second contact portion 221, the opposite side of the second contact portion 221 has a second soldering portion 222 extending and bending toward the bottom, the second contact portion 221 of the second terminal 22 is located between the plurality of first contact portions 211 on the first terminal 21, the first contact portion 211 and the second contact portion 221 present a raised planar structure, the first contact portion 211 adopts a plurality of designs to increase the contact area and reduce the poor conduction condition.

The center surfaces of the two conductive elastic sheets 3 are formed with a pressing portion 31 which is arched, and the periphery of the pressing portion 31 is extended outward with an abutting portion 32.

The key 4 has a base 41 with a rectangular shape, the center of the base 41 is provided with an elastic member 42 with an oval shape, the top of the elastic member 42 has a pressing portion 421, and the bottom of the elastic member 42 opposite to the other side of the pressing portion 421 has a pressing portion 422.

The top of the cover 5 has a through hole 50, the through hole 50 is for the elastic element 42 of the key 4 to pass through, and the cover 5 has a plurality of position-limiting portions 51, two sides of the cover 5 have a buckling portion 52 extending to the bottom, the buckling portion 52 is recessed with a buckling hole 520, and the bottom side of the buckling portion 52 has a positioning block 521.

At least one protrusion 14 corresponding to the fastening holes 520 at two sides of the cover 5 is disposed at two sides of the base 1, the fastening groove 140 for engaging the positioning block 521 of the cover 5 is concavely disposed at the bottom of the plurality of protrusions 14, and a positioning groove 15 corresponding to the first welding portion 212 and the second welding portion 222 is disposed at two sides of the base 1 not disposed with the plurality of protrusions 14

When assembling the push switch of the present invention, the terminal set 2 is assembled in the accommodating space 10 of the base 1 by using an Insert injection Molding method (Insert Molding), and the first welding portion 212 and the second welding portion 222 on the first terminal 21 and the second terminal 22 will protrude out of the base 1 and be individually accommodated in the positioning groove 15 at both sides of the base 1, and then two conductive elastic pieces 3 are sequentially abutted against the top of the terminal set 2, so that the abutting portion 32 of the conductive elastic piece 3 is abutted against the surfaces of the plurality of first contact portions 211 of the terminal set 2, and the pressing portion 31 of the conductive elastic piece 3 is aligned with the second contact portion 221 of the terminal set 2, and two overlapped conductive elastic pieces 3 are used to increase the hand feeling and the elastic force of elastic recovery when pressing, and then the base 41 of the push button 4 is abutted against the upper surface of the conductive elastic piece 3 and is adhered to the upper surface of the sealing flange 13 at the top of the base 1 to form a completely sealed accommodating space 10 The space is to achieve the effects of noise reduction, dust prevention and water prevention, and then the through hole 50 on the cover 5 is sleeved on the elastic member 42 of the key 4, the plural limiting portions 51 on the cover 5 are fastened to the outer edge of the base 41 of the key 4, and the two fastening portions 52 on the two sides of the cover 5 and the plural bumps 14 on the two sides of the seat 1 corresponding to the two fastening portions 52 are fastened to each other, so that the plural bumps 14 penetrate through the fastening holes 520 on the fastening portions 52, and the positioning blocks 521 on the bottom sides of the fastening portions 52 are fastened to the fastening grooves 140 on the bottom sides of the bumps 14, thereby completing the assembly of the push switch of the present invention.

The actuation principle of the push switch of the present invention is that the user presses the pressing portion 421 of the button 4, and then moves toward the seat 1, the elastic member 42 disposed on the button 4 is compressed by the pressing stress of the pressing portion 421, and the pressing portion 422 of the bottom surface of the elastic member 42 moves downward and contacts the pressing portion 31 of the conductive elastic sheet 3, so as to push the pressing portion 31 to make the two overlapped conductive elastic sheets 3 continue to move downward, so that the conductive elastic sheet 3 contacts the upper surface of the second contact portion 221 located below, so as to make the first terminal 21 and the second terminal 22 electrically connected, and make the first welding portion 212 and the second welding portion 222 form a conduction state, so as to drive the electronic device provided with the push switch to move, and the bending portions of the bottom sides of the first welding portion 212 and the second welding portion 222 are respectively provided with the first welding surface 2121 and the second welding surface 2221, the two welding surfaces can provide a stable welding point when the push switch is welded on a circuit board (not shown), and the first welding portion 212 and the second welding portion 222 extend inwards to form an inclined angle to be arranged in the positioning groove 15, so that the welding tin can be filled into the positioning groove 15 along the inclined angle when the two welding surfaces are welded, and the position of the welding portion is not required to be frequently adjusted when the switch is welded. Furthermore, the long-stroke mobile arrangement is provided in the second terminal slot 12 of the second terminal 22, which can increase the hand feeling of the user when pressing the switch to actuate, and the sealing flange 13 and the seat body 1 are designed as an integral molding, and the accommodating space 10 is a completely sealed space after being assembled, so as to achieve the effects of noise reduction, dust prevention and water prevention, and prolong the service life of the pressing switch.

With the disclosure of fig. 1 to 4, the present invention can be understood as a push switch, including: a base body, which is provided with an accommodating space, two terminal grooves and a sealing flange; a terminal set disposed in the accommodating space of the base, the terminal set including a first terminal and a second terminal, the first terminal having a plurality of first contact portions and a first welding portion, the second terminal having a second contact portion and a second welding portion, and the second contact portion being located between the plurality of first contact portions; the center surfaces of the two conductive elastic sheets are provided with an arched pressing part, the periphery of the pressing part extends outwards to form an abutting part, and the first terminal and the second terminal are electrically connected when the pressing part is pressed downwards; the key comprises a base and an elastic piece, wherein the top of the elastic piece is provided with a pressing part, and the bottom of the elastic piece is provided with a pressing part which pushes the two conductive elastic pieces to the bottom; the cover body is provided with a through hole, and the outer edge of the cover body is provided with a plurality of limiting parts, so that the structure of the push switch with waterproof and dustproof functions, long stroke and quiet action is achieved by the structure, and the aims of low failure rate and long service life are achieved.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A push switch, comprising:

2. The push switch of claim 1, wherein: the sealing structure of the base body is a sealing flange which is supported against the base.

3. The push switch of claim 2, wherein: the sealing flange and the seat body are of an integrally formed structure.

4. The push switch of claim 1, wherein: the two conductive elastic sheets have the same structure and are arranged on the first contact part in an aligned mode.

5. The push switch of claim 1, wherein: at least one convex block is arranged on each side of the seat body, a fastening groove is concavely arranged at the bottom of the at least one convex block, fastening parts are respectively arranged on each side of the cover body, fastening holes for the plurality of convex blocks on each side of the seat body to penetrate and position are concavely arranged on the two fastening parts, a positioning block for the fastening groove at the bottom of the at least one convex block to be fastened and fixed is arranged at the bottom of the two fastening parts, and a plurality of limiting parts abutted against the outer edge of the base are arranged at the outer edge of the cover body.

6. The push switch of claim 1, wherein: the second terminal groove in the housing is deeper than the first terminal groove to form a structure with long-stroke movement.

7. The push switch of claim 1, wherein: the bent part of the first welding part, which extends and bends towards the bottom of one side of the first contact part, is provided with a first welding surface.

8. The push switch of claim 1, wherein: the bent part of the second welding part, which extends and bends towards the bottom of one side of the second contact part, is provided with a second welding surface.

9. The push switch of claim 1, wherein: the terminal set is assembled in the accommodating space of the base by an embedding and injecting method.

10. The push switch of claim 1, wherein: the seat body is in a rectangular groove structure in appearance.