CN215118713U

CN215118713U - Side-pressing type rubberizing light-touch switch

Info

Publication number: CN215118713U
Application number: CN202121001195.3U
Authority: CN
Inventors: 戴加强; 何春林; 张鹏
Original assignee: Wenzhou Hanjing Electronics Co ltd
Current assignee: Wenzhou Hanjing Electronics Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-12-10
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a side is according to type rubberizing and is dabbed switch, including shell fragment, base, button and apron, be equipped with the storage tank on the base, install the top of storage tank the apron, install on the apron the button, the shell fragment is installed in the storage tank, the button is located the shell fragment directly over, be equipped with the one deck dust-proof membrane between button and the shell fragment, the edge centre gripping of dust-proof membrane is between apron and base, be equipped with the three contact of arranging along width direction in the storage tank, middle one is the movable contact, has the clearance between movable contact and the shell fragment, the both sides of movable contact are the stationary contact, and the stationary contact is contacted with the shell fragment laminating, both ends are equipped with first terminal and second terminal respectively about the base. The utility model discloses a shell fragment has the dust-proof membrane on, dustproof effect that can be better.

Description

Side-pressing type rubberizing light-touch switch

Technical Field

The utility model relates to a dab the switch, especially relate to a switch is dabbed to side according to type rubberizing.

Background

At present, the tact 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. The touch switch with the traditional structure mainly comprises a base, a button and a cover plate, wherein the cover plate is provided with a through hole, the button is matched with the through hole, and the internal structure of the touch switch is opened and closed by the elastic sheet which is elastically moved by the stress of the elastic sheet. General dabs switch belongs to assembled structure, and the apron is fixed on the base with the mode of pegging graft, and button and apron adopt the mode of joint to be connected, consequently, has the clearance between button and the through-hole to and assembled dabs the switch and also has certain gap, makes moisture, dust or powder in the air enter into the switch inside from above-mentioned clearance or gap like this, arouses the circuit short circuit, leads to dabbing the switch failure, influences its normal use. Therefore, the touch switch with the traditional structure has poor sealing performance and has some potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a side and press type rubberizing and dabble switch, have good leakproofness, can prevent that moisture, dust or powder in the air from getting into and dabbing and arousing the circuit short circuit in the switch.

The utility model provides a technical scheme that its technical problem adopted: a side-pressing type rubberizing light-touch switch comprises a spring plate, a base, a button and a cover plate, wherein a containing groove is formed in the base, the cover plate is installed above the containing groove, the button is installed on the cover plate, the spring plate is installed in the containing groove, the button is located right above the spring plate, a dustproof film is arranged between the button and the spring plate, the edge of the dustproof film is clamped between the cover plate and the base, three contacts arranged in the width direction are arranged in the containing groove, the middle one is a movable contact, a gap is formed between the movable contact and the spring plate, two sides of the movable contact are fixed contacts, the fixed contacts are in contact with the spring plate in a laminating manner, a first terminal and a second terminal are respectively arranged at the left end and the right end of the base, the inner end of the first terminal is connected with the movable contact, the inner end of the second terminal is connected with the two fixed contacts, and the spring plate can be elastically deformed by pressing the button, the bottom surface of the elastic sheet is contacted with the movable contact, so that the first terminal and the second terminal are conducted.

For further improvement, the cover plate is connected with the base through a buckle, turned-over edges are arranged on the front side and the rear side of the cover plate, fixing clamping pins are arranged at two ends of the turned-over edges, fixing grooves are formed in four corners of the bottom of the base, the fixing clamping pins are in clamping fit with the fixing grooves through inward folding, and positioning clamping grooves are formed in the turned-over edges.

Further perfect, the both ends of base upper surface are equipped with the spacing sand grip that is used for restricting apron both ends position, are equipped with positioning groove on the spacing sand grip, the apron both ends are equipped with positioning groove complex location sand grip.

Further perfect, the shell fragment is equipped with the bar of twice parallel and divides the hole along the width direction, is equipped with hunch-up portion between the two bar branch holes, both sides are equipped with the depressed part around the shell fragment, and the bottom of depressed part is trapezoidal contact surface, trapezoidal contact surface and stationary contact laminating contact.

Further perfection, the upper surface of dust-proof membrane is equipped with bellied locating frame, and locating frame and button bottom clearance fit.

The utility model discloses profitable effect is: the utility model discloses an elastic sheet is installed in the storage tank, is equipped with the one deck dust-proof membrane between button and the elastic sheet, and the edge centre gripping of dust-proof membrane is between apron and base, and the elastic sheet is covered with the dust-proof membrane, dustproof effect that can be better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

description of reference numerals: 1. the elastic sheet, 11, the bar-shaped dividing hole, 12, the arch part, 13, the depressed part, 14, the trapezoidal contact surface, 2, the base, 21, the accommodating groove, 22, the movable contact, 23, the stationary contact, 24, the first terminal, 25, the second terminal, 26, the fixed groove, 27, the limiting convex strip, 28, the positioning groove, 3, the button, 4, the cover plate, 41, the flanging, 42, the fixed clamping foot, 43, the positioning convex strip, 44, the positioning clamping groove, 5, the dustproof film, 51 and the positioning frame.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to figures 1-2: in the embodiment, the side-pressing type rubberizing tact switch comprises an elastic sheet 1, a base 2, a button 3 and a cover plate 4, wherein a containing groove 21 is arranged on the base 2, the cover plate 4 is arranged above the containing groove 21, the button 3 is arranged on the cover plate 4, the elastic sheet 1 is arranged in the containing groove 21, the button 3 is positioned right above the elastic sheet 1, a dustproof film 5 is arranged between the button 3 and the elastic sheet 1, the edge of the dustproof film 5 is clamped between the cover plate 4 and the base 2, the elastic sheet 1 is coated with the dustproof film 5, the dustproof effect is better, moisture, dust or powder in air can be prevented from entering the containing groove 21 to cause a circuit short circuit, three contacts arranged along the width direction are arranged in the containing groove 21, one of the middle is a movable contact 22, a gap is formed between the movable contact 22 and the elastic sheet 1, two sides of the movable contact 22 are static contacts 23, the fixed contact 23 is in contact with the elastic sheet 1 in a fitting manner, the left end and the right end of the base 2 are respectively provided with a first terminal 24 and a second terminal 25, the inner end of the first terminal 24 is connected with the movable contact 22, the inner end of the second terminal 25 is connected with the two fixed contacts 23, the elastic sheet 1 can be elastically deformed by pressing the button 3, the bottom surface of the elastic sheet 1 is in contact with the movable contact 22, and the first terminal 24 and the second terminal 25 are switched on. Be connected for the buckle between apron 4 and the base 2, both sides are equipped with turn-ups 41 around the apron 4, and the both ends of turn-ups 41 are equipped with fixing clip foot 42, the four corners of base 2 bottom is equipped with fixed recess 26, fixing clip foot 42 realizes the joint cooperation through infolding and fixed recess 26, and simple structure is compact, and integral type seal structure for this dabbing switch has good leakproofness, be equipped with positioning slot 44 on the turn-ups 41, can improve the precision of soldering with the setpoint cooperation on the PCB board. The both ends of 2 upper surfaces of base are equipped with the spacing sand grip 27 that are used for restricting the apron 4 both ends position, are equipped with positioning groove 28 on the

spacing sand grip

27, 4 both ends of apron are equipped with positioning groove 28 complex location sand grip 43, and apron 4 both ends have good sealing performance with 2 both ends of base. The elastic sheet 1 is provided with two parallel strip-shaped dividing holes 11 along the width direction, an arch portion 12 is arranged between the two strip-shaped dividing holes 11, good elasticity is achieved, the front side and the rear side of the elastic sheet 1 are provided with concave portions 13, the bottom of each concave portion 13 is a trapezoidal contact surface 14, the trapezoidal contact surfaces 14 are in contact with the stationary contacts 23 in a laminating mode, the electric conductivity is good, and poor contact is not prone to occurring. The upper surface of dustproof membrane 5 is equipped with bellied locating frame 51, can strengthen the thickness of this department, and locating frame 51 and button 3 bottom clearance fit can improve dustproof membrane 5's life.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a side is pressed type rubberizing and is dabbed switch, includes shell fragment (1), base (2), button (3) and apron (4), characterized by: the base (2) is provided with a containing groove (21), the cover plate (4) is arranged above the containing groove (21), the button (3) is arranged on the cover plate (4), the elastic sheet (1) is arranged in the containing groove (21), the button (3) is positioned right above the elastic sheet (1), a layer of dustproof film (5) is arranged between the button (3) and the elastic sheet (1), the edge of the dustproof film (5) is clamped between the cover plate (4) and the base (2), three contacts arranged along the width direction are arranged in the containing groove (21), the middle one is a movable contact (22), a gap is arranged between the movable contact (22) and the elastic sheet (1), two sides of the movable contact (22) are fixed contacts (23), the fixed contacts (23) are in contact with the elastic sheet (1), the left end and the right end of the base (2) are respectively provided with a first terminal (24) and a second terminal (25), the inner end of the first terminal (24) is connected with the movable contact (22), the inner end of the second terminal (25) is connected with the two fixed contacts (23), the elastic sheet (1) can be elastically deformed by pressing the button (3), the bottom surface of the elastic sheet (1) is contacted with the movable contact (22), and the first terminal (24) and the second terminal (25) are conducted.

2. The side-push type rubberized tact switch according to claim 1, wherein: be connected for the buckle between apron (4) and base (2), both sides are equipped with turn-ups (41) around apron (4), and the both ends of turn-ups (41) are equipped with fixing clip foot (42), the four corners of base (2) bottom is equipped with fixed recess (26), fixing clip foot (42) realize the joint cooperation through infolding and fixed recess (26), be equipped with positioning slot (44) on turn-ups (41).

3. The side-push type rubberized tact switch according to claim 2, wherein: the both ends of base (2) upper surface are equipped with spacing sand grip (27) that are used for restricting apron (4) both ends position, are equipped with positioning groove (28) on spacing sand grip (27), apron (4) both ends are equipped with positioning groove (28) complex location sand grip (43).

4. The side-push type rubberized tact switch according to claim 3, wherein: the elastic sheet (1) is provided with two parallel strip-shaped dividing holes (11) along the width direction, an arching portion (12) is arranged between the two strip-shaped dividing holes (11), concave portions (13) are arranged on the front side and the rear side of the elastic sheet (1), the bottom of each concave portion (13) is a trapezoidal contact surface (14), and the trapezoidal contact surface (14) is in contact with the stationary contact (23) in an attaching mode.

5. The side-push type rubberized tact switch according to claim 4, wherein: the upper surface of dustproof film (5) is equipped with bellied locating frame (51), and locating frame (51) and button (3) bottom clearance fit.