CN212113521U

CN212113521U - Miniature light touch switch with collision buffer layer

Info

Publication number: CN212113521U
Application number: CN202021024410.7U
Authority: CN
Inventors: 练坚友
Original assignee: Shenzhen Best Electronics Co ltd
Current assignee: Shenzhen Best Electronics Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-12-08
Anticipated expiration: 2030-06-05

Abstract

A micro light touch switch with a collision buffer layer relates to the technical field of electronic switches. The utility model provides a it contains and dabs the switch body that miniature dabs with collision buffer layer, the pin, the switch base, the apron, a fixed base, the elastic component, shift knob, press the splenium, the buffer board, buffer spring, the pressure column, the contact, press the spring, switch circuit board, conductive contact, it sets up the pin to dabber switch body bottom left and right sides, it is switch base to dabber switch body lower part, switch base top joint apron, the fixing base cup joints and sets up the elastic component, the shift knob bottom is for pressing the splenium, buffer spring is set up between buffer board and the splenium, the registrate sets up the contact in the pressure column, the pressure column upper portion outside sets up presses the spring, the contact below sets up switch circuit board, switch circuit board upper surface sets up. After the technical scheme is adopted, the beneficial effects of the utility model are that: its simple structure, reasonable in design has buffering and dirt-proof advantage, long service life.

Description

Miniature light touch switch with collision buffer layer

Technical Field

The utility model relates to an electronic switch technical field, concretely relates to miniature switch that dabs with collision buffer layer.

Background

The tact switch, also called a key switch, is the earliest in japan, and when it is used, the switch is turned on by applying a pressure to the switch operation direction under the condition that the operation force is satisfied, and when the pressure is released, the switch is turned off, and the internal structure of the switch is changed by the change of the spring force to turn on and off the switch. The tact switch is widely used in the fields of digital cameras, household appliances, mechanical equipment and the like. Chinese patent CN201521115264.8 discloses a micro light-touch switch, which is characterized in that the micro light-touch switch comprises a top cover, a switch base, a button, pins and a spring key structure, wherein a hollow structure is arranged at the middle position of the upper surface of the top cover, two opposite side edges extend downwards to form two L-shaped fastening pieces with mirror symmetry, and the middle parts of the other two opposite side edges extend downwards to form a section of attaching piece; the upper surface of the switch base and the upper part of one side surface are both provided with a slotted hole, and the slotted holes at the two positions are communicated; the top cap is installed on the upper surface of the switch base, the hollow structure of the top cap is located in the groove hole of the upper surface of the switch base, two L-shaped fastening pieces which are mirror symmetry on one side edge are respectively attached to two sides of the groove hole in the side face of the switch base, and the attachment pieces on two opposite side edges of the top cap are attached to corresponding side faces of the switch base. The utility model discloses a though have the advantage of using reliably, it does not have collision buffer function, and the user touches the switch carelessly under the situation of not knowing and probably leads to electrical apparatus to be operating condition, and the electric quantity of electrical apparatus can be totally over at any time, inconvenient use to this utility model does not have dirt-proof function, and dirt-proof compact type is poor, can not completely cut off the dust effectively outside the switch, causes the inner member easily to rust, thereby has shortened the life of switch, consequently is unfavorable for using widely.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a miniature light touch switch with collision buffer layer, its simple structure, reasonable in design has buffering and dirt-proof advantage, and long service life is fit for using widely.

In order to achieve the above purpose, the utility model adopts the following technical scheme: it comprises a light-touch switch body 1, pins 11, a switch base 2, a cover plate 21, a fixed seat 22, an elastic part 221, a switch button 3, a pressing part 31, a buffer plate 32, a buffer spring 321, a pressure column 33, a contact piece 331, a pressing spring 332, a switch circuit board 4 and a conductive contact piece 41, wherein the pins 11 are arranged on the left side and the right side of the bottom of the light-touch switch body 1, the switch base 2 is arranged on the lower part of the light-touch switch body 1, the cover plate 21 is clamped on the upper part of the switch base 2, the fixed seat 22 is arranged on the surface of the bottom of the switch base 2, the elastic part 221 is sleeved on the fixed seat 22, the switch button 3 vertically penetrates through the cover plate 21, the pressing part 31 is arranged at the bottom of the switch button 3, the buffer plate 32 is arranged below the pressing part 31, the buffer spring 321 is arranged between the buffer plate 32 and the pressing part 31, the switch circuit board 4 is arranged below the contact piece 331, the switch circuit board 4 is clamped and fixed with the bottom of the pressure column 33, and the conductive contact piece 41 is arranged on the upper surface of the switch circuit board 4.

The elastic member 221 is disposed in the cavity 222.

The lower surface of the pressing part 31 is provided with a groove 311, and the upper surface and the lower surface of the buffer plate 32 are both provided with grooves 311.

A layer of dust-proof film 34 is fixedly connected to the outside of the pressing part 31.

The surface of the switch button 3 is provided with a bulge 35.

The utility model discloses a theory of operation: when the user carelessly collides the switch button which is touched with the switch body, the restoring force of the buffer spring enables the switch button to return to the original position due to insufficient force. People can press the switch button to make the pressure column move downwards, so that the contact piece is contacted with the conductive contact piece on the switch circuit board, and the electric appliance starts to work.

After the technical scheme is adopted, the utility model discloses beneficial effect does: 1. the arrangement of the buffer plate and the buffer spring enables the light touch switch body to have a collision buffer function, so that the use of an electric appliance caused by careless collision of the switch is avoided; 2. the dustproof seal of dabbing the switch body has been strengthened having been strengthened in the setting of dust-proof membrane, can be isolated outside the switch with the dust effectively, is difficult to cause the damage of internal component, has prolonged the life of switch. Generally speaking, its simple structure, reasonable in design has buffering and dirt-proof advantage, and long service life is fit for using widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is a sectional view A-A corresponding to FIG. 1;

fig. 3 is a top view corresponding to fig. 1.

Description of reference numerals: the switch comprises a tact switch body 1, a pin 11, a switch base 2, a cover plate 21, a fixed seat 22, an elastic piece 221, a cavity 222, a switch button 3, a pressing part 31, a groove 311, a buffer plate 32, a buffer spring 321, a pressure column 33, a contact piece 331, a pressing spring 332, a dustproof film 34, a protrusion 35, a switch circuit board 4 and a conductive contact piece 41.

Detailed Description

Referring to fig. 1 to fig. 3, the technical solution adopted by the present embodiment is: the light-touch switch comprises a light-touch switch body 1, pins 11, a switch base 2, a cover plate 21, a fixed seat 22, an elastic part 221, a switch button 3, a pressing part 31, a buffer plate 32, a buffer spring 321, a pressure column 33, a contact piece 331, a pressing spring 332, a switch circuit board 4 and a conductive contact piece 41, wherein the bottoms of the left side and the right side of the light-touch switch body 1 are respectively and fixedly connected with the two pins 11, the lower part of the light-touch switch body 1 is the switch base 2, the cover plate 21 is arranged above the switch base 2, the cover plate 21 is fixed above the switch base 2 in a clamping way, the cylindrical fixed seat 22 is arranged at the bottom of the switch base 2, the elastic part 221 is sleeved on the fixed seat 22, the switch button 3 passes through a circular hole of the cover plate 21 and is led into the inside of the light-touch switch body 1, the switch button is made, the fixed setting in shift knob 3 bottom is pressed the portion 31, presses portion 31 below to be equipped with a buffer board 32, buffer board 32 with press portion 31 to connect through buffer spring 321, pressure column 33 of buffer board 32 below installation, pressure column 33 upper portion registrates and sets up contact 331, pressure column 33 upper portion outside installation presses spring 332,

pressure column

33 and 4 joint of switch circuit board are fixed, switch circuit board 4 upper surface welding regulation conductive contact 41.

The elastic member 221 is installed inside the cavity 222.

The lower surface of the pressing part 31 is provided with a groove 311, the lower surface and the upper surface of the buffer plate 32 are provided with grooves 311, and the pressing part 31 and the buffer plate 32 are integrally formed with the grooves 311.

The fixed one deck dust-proof membrane 34 of gluing in the splenium 31 outside, the dust-proof seal that dabs switch body 1 has been strengthened to the setting of dust-proof membrane 34, can be isolated outside the switch with the dust effectively, be difficult to cause the damage of internal component, prolonged the life of switch.

The surface of the switch button 3 is provided with two bulges 35, and the bulges 35 play a role in skid resistance.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A micro tact switch with a collision buffer layer is characterized in that: the switch comprises a light-touch switch body (1), pins (11), a switch base (2), a cover plate (21), a fixed seat (22), an elastic part (221), a switch button (3), a pressing part (31), a buffer plate (32), a buffer spring (321), a pressure column (33), a contact piece (331), a pressing spring (332), a switch circuit board (4) and a conductive contact piece (41), wherein the pins (11) are arranged on the left side and the right side of the bottom of the light-touch switch body (1), the switch base (2) is arranged on the lower part of the light-touch switch body (1), the cover plate (21) is clamped above the switch base (2), the fixed seat (22) is arranged on the surface of the bottom of the switch base (2), the elastic part (221) is sleeved on the fixed seat (22), the switch button (3) vertically penetrates through the cover plate (21), the pressing part (31) is arranged on the bottom, buffer spring (321) is arranged between buffer board (32) and pressing part (31), pressure column (33) is arranged below buffer board (32), contact piece (331) is sleeved in pressure column (33), pressing spring (332) is arranged on the outer side of the upper part of pressure column (33), switch circuit board (4) is arranged below contact piece (331), switch circuit board (4) is clamped and fixed with the bottom of pressure column (33), and conductive contact piece (41) is arranged on the upper surface of switch circuit board (4).

2. The micro tact switch with impact buffer of claim 1, wherein: the elastic piece (221) is arranged in the cavity (222).

3. The micro tact switch with impact buffer of claim 1, wherein: the lower surface of the pressing part (31) is provided with a groove (311), and the upper surface and the lower surface of the buffer plate (32) are both provided with grooves (311).

4. The micro tact switch with impact buffer of claim 1, wherein: the outer part of the pressing part (31) is fixedly connected with a layer of dustproof film (34).

5. The micro tact switch with impact buffer of claim 1, wherein: the surface of the switch button (3) is provided with a bulge (35).