CN215869060U

CN215869060U - Key structure

Info

Publication number: CN215869060U
Application number: CN202121890957.XU
Authority: CN
Inventors: 曾塘勇; 钟招伟
Original assignee: Shenzhen Fenda Technology Co Ltd
Current assignee: Shenzhen Fenda Technology Co Ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-02-18
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a key structure, which comprises a circuit board, a panel and a button assembly, wherein the circuit board is arranged on the panel; the circuit board is provided with a key switch, the panel is parallel to the circuit board, and the panel is provided with a mounting hole corresponding to the position of the key switch; the button assembly comprises a key cap and an elastic buffer component, and the key cap is movably connected to the circuit board; one end of the key cap penetrates through the mounting hole, and the other end of the key cap abuts against the key switch; two ends of the buffer component are respectively connected with the key cap and the circuit switch, and a gap is arranged between the button component and the mounting hole; the both ends of buffering part are connected respectively in button cap and circuit board to carry out spacing the realization according to the reset of button cap when according to the button cap, and the buffering part makes and is equipped with the clearance between button assembly and the mounting hole, in order to avoid button assembly and panel contact and produce the noise.

Description

Key structure

Technical Field

The utility model relates to the field of keys, in particular to a key structure.

Background

In order to interact with an electronic product, the electronic product is generally provided with a plurality of keys, and different functions can be switched by pressing different keys. The existing keys are generally connected to the key circuit board through springs, the keys are limited through holes in a product panel, and when a user presses the keys, the keys slide relative to the through holes and contact switches on the pressing circuit board. However, the key often collides with the through hole on the panel, which may be caused by the user pressing the key or the electronic product vibrating under the external force. The noise that button and through-hole collision produced does not do benefit to the user experience who promotes the product, and is unfavorable for the feel of product.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the present invention provides a key structure to solve the problem of noise generated between the key and the panel through hole of the conventional electronic product.

The purpose of the utility model is realized by adopting the following technical scheme:

a key structure comprises a circuit board, a panel and a button assembly;

the circuit board is provided with a key switch, the panel is parallel to the circuit board, and the panel is provided with a mounting hole corresponding to the position of the key switch;

the button assembly comprises a button cap and an elastic buffer component, and the button cap is movably connected to the circuit board; one end of the key cap penetrates through the mounting hole, and the other end of the key cap abuts against the key switch; the two ends of the buffer component are respectively connected with the key cap and the circuit switch, and a gap is formed between the button component and the mounting hole.

In some optional embodiments, the gap includes a first gap and a second gap, the first gap is provided between the key cap and the mounting hole, and the second gap is provided between the buffer component and the mounting hole; the width of the first gap is greater than the width of the second gap.

In some optional embodiments, a connecting portion is disposed at one end of the buffering component, the cross section of the connecting portion is arc-shaped, the inner side wall of the connecting portion is connected to the key cap, and the second gap is disposed between the outer side wall of the connecting portion and the mounting hole.

In some optional embodiments, the panel further comprises a bracket located between the circuit board and the panel, the bracket is connected with the circuit board and the panel respectively, and the buffer component is arranged on the bracket.

In some optional embodiments, the panel is provided with a connecting column, the buffer component is provided with a first connecting hole, the circuit board is provided with a second connecting hole, and the connecting column is arranged through the first connecting hole and the second connecting hole.

In some optional embodiments, the buffer member is made of a thermoplastic polyurethane elastomer rubber material.

Compared with the prior art, the utility model has the beneficial effects that:

the both ends of buffering part are connected respectively in button cap and circuit board to carry out spacing the realization according to the reset of button cap when according to the button cap, and the buffering part makes and is equipped with the clearance between button assembly and the mounting hole, in order to avoid button assembly and panel contact and produce the noise.

Drawings

Fig. 1 is a schematic view of the internal structure of the key structure of the utility model;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is an exploded view of the key structure of the utility model;

FIG. 4 is an enlarged schematic view at B of FIG. 3;

in the figure:

10. a circuit board; 11. a key switch; 20. a panel; 21. mounting holes; 30. a key cap; 40. a buffer member; 41. a connecting portion; 50. a first gap; 60. a second gap; 70. and (4) a bracket.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a key structure of the present invention is schematically shown, including a circuit board 10, a panel 20, and a button assembly.

The circuit board 10 is provided with the key switches 11, the panel 20 is parallel to the circuit board 10, the panel 20 is provided with a plurality of mounting holes 21 corresponding to the positions of the key switches 11, when the key switches 11 are provided in plurality, the panel 20 is also provided with a plurality of mounting holes 21, the number of the mounting holes 21 is the same as that of the key switches 11, and each mounting hole 21 corresponds to one key switch 11.

The button assembly includes a key cap 30 and a buffering member 40 having elasticity, the key cap 30 is movably connected to the circuit board 10, and a moving direction of the key cap 30 is perpendicular to the circuit board 10, i.e., the moving direction of the key cap 30 is parallel to an axis of the mounting hole 21. One end of the key cap 30 penetrates the mounting hole 21 for the user to contact and press, and the other end of the key cap 30 abuts against the key switch 11. The two ends of the buffering component 40 are respectively connected to the key cap 30 and the circuit switch, a gap is formed between the button assembly and the mounting hole 21, and the buffering component 40 is not only used for rebounding and resetting of the key cap 30, but also used for enabling the gap to be reserved between the button assembly and the mounting hole 21 all the time, so that noise caused by collision between the button assembly and the panel 20 is avoided.

Specifically, as shown in fig. 2, the gaps include a first gap 50 and a second gap 60, the first gap 50 is provided between the key top 30 and the mounting hole 21, the second gap 60 is provided between the buffer member 40 and the mounting hole 21, and the width of the first gap 50 is greater than the width of the second gap 60. As shown in fig. 4, a connecting portion 41 is provided at one end of the cushioning member 40, the cross section of the connecting portion 41 is circular arc-shaped, the inner wall of the connecting portion 41 is connected to the key cap 30, and a second gap 60 is provided between the outer wall of the connecting portion 41 and the mounting hole 21.

Further, the mounting hole 21 includes a first hole section and a second hole section, the first hole section and the second hole section are coaxially arranged and connected, and the inner diameter of the first hole section is smaller than that of the second hole section; correspondingly, the outer diameter of the key cap 30 is smaller than that of the connecting part 41; therefore, the first gap 50 is provided between the key cap 30 and the first hole section, and the second gap 60 is provided between the connecting portion 41 and the second hole section.

In some optional embodiments, the key structure further includes a bracket 70 located between the circuit board 10 and the panel 20, the bracket 70 is connected to the circuit board 10 and the panel 20, respectively, and the buffer member 40 is disposed on the bracket 70, and the bracket 70 is used for carrying the buffer member 40.

In some optional embodiments, the panel 20 is provided with a connection column, the buffering member 40 is provided with a first connection hole, the circuit board 10 is provided with a second connection hole, the connection column is inserted into the first connection hole and the second connection hole, the end of the connection column is provided with a threaded hole, and the threaded hole is penetrated and connected by a fastener such as an existing screw, so as to connect the panel 20, the buffering member 40 and the circuit board 10.

In some alternative embodiments, cushioning member 40 is formed from a thermoplastic polyurethane elastomer rubber material.

Compared with the prior art, the utility model has the beneficial effects that:

the two ends of the buffering component 40 are respectively connected to the key cap 30 and the circuit board 10, so that the key cap 30 is reset while the key cap 30 is limited, and the buffering component 40 enables a gap to be formed between the button assembly and the mounting hole 21, so that noise caused by contact between the button assembly and the panel 20 is avoided.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A key structure is characterized by comprising a circuit board, a panel and a button assembly;

2. The key structure according to claim 1, wherein the gap includes a first gap and a second gap, the first gap is provided between the key cap and the mounting hole, and the second gap is provided between the buffer member and the mounting hole; the width of the first gap is greater than the width of the second gap.

3. The key structure according to claim 2, wherein a connecting portion is disposed at one end of the buffer member, the cross section of the connecting portion is arc-shaped, the inner sidewall of the connecting portion is connected to the key cap, and the second gap is disposed between the outer sidewall of the connecting portion and the mounting hole.

4. The key structure of claim 1, further comprising a bracket disposed between the circuit board and the panel, wherein the bracket is connected to the circuit board and the panel, and the buffer member is disposed on the bracket.

5. The key structure according to claim 1, wherein the panel is provided with a connection post, the buffer member is provided with a first connection hole, the circuit board is provided with a second connection hole, and the connection post is inserted through the first connection hole and the second connection hole.

6. The key structure of claim 1, wherein the cushioning member is made of a thermoplastic polyurethane elastomer rubber material.