CN220753271U

CN220753271U - Sinking plate tact switch

Info

Publication number: CN220753271U
Application number: CN202322388064.0U
Authority: CN
Inventors: 黄敏
Original assignee: Yueqing Hengqiang Electronics Co ltd
Current assignee: Yueqing Hengqiang Electronics Co ltd
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2024-04-09
Anticipated expiration: 2033-09-04

Abstract

The utility model provides a heavy board tact switch, including the base that is used for setting up the conducting strip, upper cover, and button, be provided with the rubber membrane on the base, the upper surface of base is provided with along the circumference of base distributes and upwards extends the projection that forms the place space in limiting the rubber membrane, be provided with the equipment slot that has defined the equipment direction on the inside wall of projection, be provided with the embedded unit that gets into along the equipment direction in the equipment slot, and the clamp plate that a pair of rubber membrane produced the downforce is even on the inside wall of these embedded units altogether, the central position department of clamp plate is provided with the through-hole that supplies the contact part of button to pass. The utility model has the beneficial effects that the pressing plate provides a pressing acting force for the rubber film, so that the peripheral part of the rubber film is not involved to the central position due to the acting force when the button is pressed down, and the rubber film is not tilted, thereby improving the tightness of the rubber film to the opening, avoiding the entry of impurities and increasing the waterproofness.

Description

Sinking plate tact switch

Technical Field

The utility model relates to the technical field of a sinking plate touch switch, in particular to a sinking plate touch switch.

Background

Tact switches, also known as push-button switches, occur at the earliest in japan as: when the sensitive switch is used, the switch function is closed and switched on under the condition of meeting the operating force to press the switch in the operating direction, and when the pressure is withdrawn, the switch is switched off, and the internal structure is switched on and off by the stress change of the metal reed. With the rapid development of power electronic technology, the power electronic equipment has a close relationship with the work and life of people. The tact switch is widely used in household appliances due to its small size and light weight, such as: video products, digital products, remote controllers, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, and the like.

Publication number CN214477090U discloses a heavy board tact switch, including the apron, a pedestal, a button, reed and pin, the switch is installed on the PCB board, the base is provided with spacing pin portion and button portion, spacing pin portion links into L shape with button portion is perpendicular mutually, be located the slope of base bottom and be provided with the rectangle recess that is used for fixed switch, the rectangle recess is located between spacing pin portion and the button portion, be provided with circular recess in the button portion, be provided with circular reed in the circular recess, circular reed and circular recess shape looks adaptation, circular reed top is provided with the rubber membrane that is used for dustproof and waterproof, the rubber membrane top is provided with the button, the button top is provided with the apron, the button runs through the apron and extends outside the apron, the apron cladding is in the base upper end, spacing pin lower extreme both sides are provided with the pin. In order to increase the waterproof effect, the sinking plate tact switch is provided with the rubber film on the base, but has the defect that the rubber film is arranged on the round reed, the reed is an elastic piece and can deform to be contacted with the round contact point when being pressed down, the rubber film can also deform along with the deformation of the round reed, namely, the stress point is concentrated at the central position, so that the surrounding part of the central position can be pulled to the central position by acting force, the rubber film is tilted, and the space for placing the round contact point is exposed, thereby affecting the waterproof property and the dustproof property.

Disclosure of Invention

The present utility model is directed to solving the above-mentioned drawbacks of the prior art, and provides a sinking plate tact switch for solving the above-mentioned problems.

The utility model solves the technical problems by adopting the technical scheme that: the sinking plate tact switch comprises a base for setting a conducting strip and an upper cover buckled with the base, wherein a button is arranged at the central position of the upper cover, an opening for exposing a contact of the conducting strip to the outside so that the contact part of the button is contacted with the contact is formed in the base, a rubber film attached to the upper surface of the base is arranged at the opening, convex columns which are distributed along the circumferential direction of the base and extend upwards to form a placing space for limiting the rubber film in the base are arranged on the upper surface of the base, an assembling slot for defining assembling guide is formed in the inner side wall of the convex columns, an inserting unit which enters along the assembling guide is arranged in the assembling slot, a pair of pressing plates for generating downward pressure by the rubber film are connected on the inner side walls of the inserting units, and a through hole for allowing the contact part of the button to pass is formed at the central position of the pressing plate.

Further perfecting, the convex column is in a triangular configuration, and the inclined plane of the convex column is the inner side surface for setting the assembly slot.

Further perfecting, the button is provided with a middle plate in a rectangular shape, each corner of the middle plate is provided with a chamfer forming an inclined plane, and the inclined plane of the middle plate is contacted with the inclined plane of the convex column.

Further perfecting, the assembly slot is divided into a sliding part and a locking part along the assembly guide; the insert unit is in clearance fit with the sliding part and in interference fit with the locking part.

Further perfecting, the fit clearance between the assembly slot and the insertion unit is gradually reduced along the assembly guide.

Further perfecting, a plurality of salient points acting on the rubber membrane are arranged on the lower surface of the pressing plate.

Further perfecting, the upper cover is connected with the base by a buckling position.

The beneficial effects of the utility model are as follows:

the utility model relates to a method for manufacturing the same.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the seat of the present utility model;

FIG. 3 is a schematic view of the structure of the platen and the base of the present utility model;

FIG. 4 is a schematic view of the structure of the present utility model with the upper cover hidden;

FIG. 5 is a schematic view of a side structure of a base of the present utility model for showing an assembly slot;

FIG. 6 is an enlarged partial schematic view of portion A of FIG. 5 in accordance with the present utility model;

FIG. 7 is a schematic view of a platen according to the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to the drawings: the sinking plate tact switch comprises a base 1 for arranging a conductive sheet and an upper cover 2 buckled with the base 1, wherein a button 3 is arranged at the central position of the upper cover 2, an opening 11 which enables a contact point of the conductive sheet to be exposed outside is arranged on the base 1 so that a contact part of the button 3 is contacted with the contact point, a rubber film 4 attached to the upper surface of the base 1 is arranged at the opening 11, convex columns 5 which are distributed along the circumferential direction of the base 1 and extend upwards to form a placing space 12 for limiting the rubber film 4 inside are arranged on the upper surface of the base 1, an assembly slot 51 which defines an assembly guide is arranged on the inner side wall of the convex columns 5, an inserting unit 6 which enters along the assembly guide is arranged in the assembly slot 51, a pair of pressing plates 7 which generate downward pressure on the inner side walls of the inserting units 6 are connected together, and a through hole 71 for allowing the contact part of the button 3 to pass through is arranged at the central position of the pressing plates 7. The principle of this embodiment is that the pressing plate 7 provides a pressing force to the rubber film 4, so that the peripheral portion of the rubber film 4 will not be pulled to the central position by the force when the button 3 is pressed down, and the rubber film 4 will not be tilted, thereby improving the tightness of the rubber film 4 to the opening 11, avoiding the entry of impurities, and increasing the waterproof property, and the pressing plate 7 enters the assembly slot 51 by using the inserting unit 6, i.e. the upper opening of the assembly slot 51 enters from top to bottom, then the upper cover 2 closes the upper opening of the assembly slot 51 after being fastened to the base 1, thereby preventing the inserting unit 6 from being separated from the assembly slot 51, and ensuring the lamination stability of the pressing plate 7 to the rubber film 4.

The protruding column 5 is in a triangle configuration, the inclined plane of the protruding column 5 is an inner side surface for setting the assembling slot 51, and the configuration setting of the protruding column 5 enables the obtained placing space 12 to be more sufficient, and further enables the use area of the rubber membrane 4 placed therein to be also sufficient.

The button 3 has the intermediate plate 31 that is the rectangle configuration, and every corner of intermediate plate 31 all is provided with the chamfer 31-a that forms the inclined plane, and the inclined plane of intermediate plate 31 contacts with the inclined plane of projection 5, and these inclined planes of both are the plane, and then make the mutual laminating of inclined planes of both be in the same place, and the mode can increase the stability of button 3 when using like this, also can play the guide effect, avoids button 3 to take place the skew when being pressed promptly.

The assembly slot 51 is divided into a sliding portion 51-a and a locking portion 51-b along an assembly guide; the insert unit 6 and the sliding part 51-a are in clearance fit and are in interference fit with the locking part 51-b, the insert unit 6 can be inserted into the assembly slot 51 along the assembly guide by the end part of the sliding part 51-a, the part of the insert unit 6 positioned in the assembly slot 51 is in clearance fit with the sliding part 51-a, namely, the insert unit 6 can slide along the assembly guide, and the insert unit 6 is in overaddictive fit with the locking part 51-b when sliding to the locking part 51-b, so that the insert unit 6 is locked on the locking part 51-b to complete the assembly connection of the pressing plate 7 and the base 1, tools are not needed for connection assembly, additional parts such as screws and the like are not needed, and the insert unit 6 is suitable for quick assembly and convenient assembly.

The fit clearance between the assembly slot 51 and the insertion unit 6 is gradually reduced along the assembly guide, and the change of the slot width is linear, so that the insertion process is stable, and the phenomenon of clamping in the middle of connection assembly can be avoided.

The lower surface of the pressing plate 7 is provided with a plurality of protruding points 72 acting on the rubber film 4, and the protruding points 72 can be embedded into the rubber film 4 by utilizing the principle that the rubber film 4 is made of soft materials, so that the lamination stability of the rubber film 4 is further improved.

The upper cover 2 is connected with the base 1 by a buckling position, so that the assembly stability of the upper cover 2 and the base 1 after assembly is improved, and the assembly stability of the pressing plate 7 and the convex column 5 is also improved.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a heavy board tact switch, is including base (1) that are used for setting up the conducting strip, and upper cover (2) with base (1) lock, the central point department of upper cover (2) is provided with button (3), its characterized in that: the contact of making the conducting strip exposes outside so that contact portion and contact of button (3) are opened (11), opening (11) department is provided with and attaches base (1) upper surface's rubber membrane (4), the upper surface of base (1) is provided with along the circumference of base (1) distributes and upwards extends to form will rubber membrane (4) is limited in projection (5) of interior space (12), be provided with on the inside wall of projection (5) and have defined equipment slot (51) of direction of assembling, be provided with in equipment slot (51) along the unit of inserting (6) of equipment direction entering, and these on the inside wall of unit of inserting (6) are connected with altogether a pair of clamp plate (7) of rubber membrane (4) production down force, the intermediate position department of clamp plate (7) is provided with confession button (3) contact portion's through-hole (71).

2. The sink plate tact switch according to claim 1, characterized in that: the convex column (5) is in a triangular configuration, and the inclined surface of the convex column is an inner side surface for setting the assembly slot (51).

3. The sink plate tact switch according to claim 2, characterized in that: the button (3) is provided with a middle plate (31) in a rectangular shape, a chamfer (31-a) forming an inclined plane is arranged at each corner of the middle plate (31), and the inclined plane of the middle plate (31) is contacted with the inclined plane of the convex column (5).

4. The sink plate tact switch according to claim 1, characterized in that: the assembly slot (51) is divided into a sliding part (51-a) and a locking part (51-b) along an assembly guide; the insert unit (6) and the sliding part (51-a) are in clearance fit, and the locking part (51-b) is in interference fit.

5. The sink plate tact switch of claim 4, wherein: the fit clearance between the assembly slot (51) and the insertion unit (6) is gradually reduced along the assembly guide.

6. The sink plate tact switch according to claim 1, characterized in that: the lower surface of the pressing plate (7) is provided with a plurality of protruding points (72) acting on the rubber film (4).

7. The sink plate tact switch according to claim 1, characterized in that: the upper cover (2) is connected with the base (1) by adopting a buckling position.