CN217740395U

CN217740395U - Key structure and electronic product

Info

Publication number: CN217740395U
Application number: CN202221644552.2U
Authority: CN
Inventors: 王洪清
Original assignee: Guangzhou Shiyuan Innovation Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Innovation Technology Co ltd; Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-11-04
Anticipated expiration: 2032-06-28

Abstract

The utility model relates to an electronic equipment technical field discloses a button structure and electronic product. The key structure comprises a frame, a mounting bracket, a key cap, a flexible part, a circuit board and keys, wherein the frame is provided with a first through hole; the mounting bracket is fixed on the inner side of the frame and is provided with a second through hole; the key cap sequentially penetrates through the second through hole and the first through hole, and is provided with a turned-over edge which abuts against one side, far away from the first through hole, of the mounting support; the flexible piece is arranged on one side, away from the first through hole, of the key cap; the circuit board is installed in one side of the mounting support, which is far away from the first through hole, a key is arranged on the circuit board, and the key cap is abutted to the key through a flexible piece. Compared with the prior art, the utility model cancels the design of the sinking groove of the frame, on one hand, reduces the processing amount of the sinking groove of the frame and reduces the manufacturing precision requirement of parts; on the other hand, the accumulated tolerance of the key cap is reduced, and the problem of key clamping caused by gap disappearance due to the accumulated tolerance of the key cap is avoided.

Description

Key structure and electronic product

Technical Field

The utility model relates to an electronic equipment technical field especially relates to a button structure and electronic product.

Background

In the prior art, as shown in fig. 1, a key structure is composed of a frame 10, a key board support 20, key silica gel 30, a key cap 40, and a key 60 welded on a PCB 50, where the PCB 50 is fixed on the key board support 20 and locked on the frame 10 by a screw; the key cap 40 is fixed on the key silica gel 30, and is connected with the key board bracket 20 through the key silica gel 30, and the key cap 40 is matched with the sinking groove 101 and the opening of the frame 10. The clearance between the turned-over edge of the key cap 40 and the sinking groove 101 of the frame 10 is small, so that the key cap 40 can be prevented from shaking, and good hand feeling of the key 60 can be ensured. The prior art has the following defects: when the accumulated tolerance of the key cap 40 exceeds the designed clearance, the clearance disappears, and the key cap 40 and the key silica gel 30 are reversely moved and pressed to the key 60 by the reaction force of the groove 101 of the frame 10, so that the key 60 is in a pressed state after being assembled and cannot rebound, and the key is clamped. Furthermore, the provision of the sinking groove 101 reduces the wall thickness of the frame 10, and the key cap 40 is located in the sinking groove 101 when located at the pressing limit position, which easily causes interference between the key cap 40 and the groove bottom of the sinking groove 101, thereby causing key locking.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a button structure and electronic product, its machining volume that can reduce the heavy groove of frame reduces manufacturing accuracy requirement and cost, and can also effectively prevent the card key.

In order to achieve the purpose, the utility model adopts the following technical proposal:

in one aspect, a key structure is provided, including:

a frame provided with a first through hole;

the mounting bracket is fixed on the inner side of the frame and is provided with a second through hole;

the key cap sequentially penetrates through the second through hole and the first through hole, and is provided with a turned-over edge which abuts against one side, away from the first through hole, of the mounting bracket;

the flexible piece is arranged on one side, away from the first through hole, of the key cap;

the circuit board is arranged on one side, far away from the first through hole, of the mounting support, a key is arranged on the circuit board, and the key cap abuts against the key through the flexible piece.

As a preferred technical scheme of a button structure, the flexible piece is provided with the hangers, the hangers include cylindrical part and spacing portion, be provided with the mounting hole on the installing support, the external diameter of spacing portion is greater than the aperture of mounting hole, spacing portion can pass mounting hole and butt in the installing support is close to first through-hole one side.

As a preferred technical scheme of a button structure, the hangers are multiple, and the hangers are symmetrically arranged on the outer side of the button cap along the central axis of the button cap.

As a preferred technical scheme of the key structure, the key cap is provided with a mounting groove, and the flexible part partially extends into the mounting groove.

As an optimal technical scheme of a button structure, the tank bottom of mounting groove is provided with the third through-hole, the flexible piece is provided with interlude portion, interlude portion wears to establish the third through-hole, the terminal surface of interlude portion with flush according to the outward appearance face of key cap.

As an optimal technical scheme of the key structure, a plurality of mounting columns are arranged on the mounting support, first threaded holes are formed in the mounting columns, first fixing holes in one-to-one correspondence with the mounting columns are formed in the circuit board, and screws penetrate through the first fixing holes and are connected to the first threaded holes in a threaded mode.

As an optimal technical scheme of the key structure, the flexible piece is made of silica gel.

As a preferred technical scheme of the key structure, the mounting bracket is clamped or screwed on the frame.

As a preferred technical scheme of the key structure, one of the mounting bracket and the frame is provided with a pin, and the other one of the mounting bracket and the frame is provided with a positioning hole, wherein the pin can extend into the positioning hole.

In another aspect, an electronic product is provided, which includes the key structure according to any one of the above aspects.

The utility model has the advantages that:

the utility model provides a button structure and electronic product, installing support are fixed in the inboard of frame, wear to locate the second through-hole of installing support and the first through-hole of frame in proper order according to the key cap, and prevent according to the turn-ups of key cap that the key cap breaks away from the installing support, pass through the flexible piece butt in the button according to the key cap, when the user presses down, the flexible piece can improve feeling of button. Compared with the prior art, the design of the sink groove of the frame is cancelled, so that on one hand, the processing amount of the sink groove of the frame is reduced, the manufacturing precision requirement of parts is lowered, and the manufacturing cost is lowered; on the other hand, the key cap is directly fixed on the mounting bracket, so that the accumulated tolerance of the key cap is reduced, and the problem of key clamping caused by clearance disappearance due to the accumulated tolerance of the key cap is avoided. Simultaneously, when the key cap is in the limit stroke of pressing, the key cap can not remove to the frame inboard, consequently, the frame can't cause the card key to the key cap.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and 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 the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art key structure;

fig. 2 is a cross-sectional view of a key structure according to an embodiment of the present invention;

fig. 3 is an exploded view of the key structure according to the embodiment of the present invention.

The figures are labeled as follows:

10. a frame; 101. sinking a groove; 20. a keypad support; 30. key silica gel; 40. a key cap; 50. a PCB board; 60. pressing a key;

1. a frame; 11. a first through hole; 12. positioning holes; 13. a second threaded hole;

2. mounting a bracket; 21. a second through hole; 22. mounting a column; 23. a second fixing hole;

3. a key cap; 31. flanging; 32. mounting grooves;

4. a flexible member; 41. hanging a lug; 411. a cylindrical portion; 412. a limiting part; 42. a penetration portion;

5. a circuit board; 51. a first fixing hole;

6. and (6) pressing a key.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 2 and fig. 3, the present embodiment provides an electronic product, which includes a key structure, where the key structure includes a frame 1, a mounting bracket 2, a key cap 3, a flexible component 4, a circuit board 5, and keys 6.

Specifically, the frame 1 is provided with a first through hole 11; the mounting bracket 2 is fixed on the inner side of the frame 1, and the mounting bracket 2 is provided with a second through hole 21; the key cap 3 sequentially penetrates through the second through hole 21 and the first through hole 11, the turned edge 31 is arranged on the key cap 3, and the turned edge 31 abuts against one side, far away from the first through hole 11, of the mounting bracket 2, so that the key cap 3 can be prevented from being separated from the mounting bracket 2; the flexible part 4 is arranged on one side of the key cap 3 far away from the first through hole 11; the circuit board 5 is installed in installing support 2 and is kept away from first through-hole 11 one side, is provided with button 6 on the circuit board 5, presses button cap 3 through flexible 4 butt in button 6, and when the user pressed, flexible 4 can improve the feeling of button 6. Compared with the prior art, the design of the sink groove of the frame is cancelled, so that on one hand, the processing amount of the sink groove is reduced, the manufacturing precision requirement of parts is lowered, and the cost is lower; on the other hand, according to the key cap 3 directly fixed on the mounting bracket 2, the accumulated tolerance of the key cap 3 is reduced, and the problem of key clamping caused by gap disappearance due to the accumulated tolerance of the key cap 3 is avoided. Meanwhile, when the key cap 3 is in the limit stroke of pressing, the key cap 3 cannot move to the inner side of the frame 1, and therefore the frame 1 cannot clamp the key to the key cap 3.

In this embodiment, the key 6 is soldered on the circuit board 5, so that the key 6 is electrically connected to the circuit board 5.

Further, the flexible part 4 is provided with a hanging lug 41, the hanging lug 41 comprises a cylindrical portion 411 and a limiting portion 412, a mounting hole is formed in the mounting bracket 2, the outer diameter of the limiting portion 412 is larger than the aperture of the mounting hole, and the limiting portion 412 can penetrate through the mounting hole and abut against one side, close to the first through hole 11, of the mounting bracket 2. When the limiting portion 412 penetrates through the mounting hole, the limiting portion 412 is flexible, so that the limiting portion 412 contracts in the penetrating process, and the limiting portion 412 cannot return after penetrating through the mounting hole to be abutted to one side, close to the first through hole 11, of the mounting bracket 2. In this embodiment, the flexible member 4 is made of silicone.

When the key cap 3 is pressed, the column part 411 of the flexible part 4 deforms and stretches, so that the flexible part 4 presses the key 6; when the pressing force on the key cap 3 is removed, the column portion 411 rebounds to reset the positions of the key cap 3 and the flexible piece 4, and the key 6 is not pressed at the moment, so that the key clamping phenomenon is prevented.

Preferably, the hanging lugs 41 are multiple, and the hanging lugs 41 are symmetrically arranged on the outer side of the key cap 3 along the central axis of the key cap 3, so that the mounting stability of the flexible part 4 is improved. In this embodiment, two hanging lugs 41 are symmetrically disposed on two sides of the key cap 3.

Preferably, the key cap 3 is provided with a mounting groove 32, the flexible element 4 partially extends into the mounting groove 32, the mounting strength of the flexible element 4 and the key cap 3 is improved, and the key cap 3 is fixed on the mounting bracket 2 through the flexible element 4. Further preferably, a third through hole is formed in the bottom of the mounting groove 32, the flexible part 4 is provided with an insertion portion 42, the insertion portion 42 penetrates through the third through hole, and the end surface of the insertion portion 42 is flush with the appearance surface of the key cap 3, so that on one hand, the appearance attractiveness of the key cap 3 is improved; on the other hand, the key 6 is provided with an LED lamp, and a light beam emitted by the LED lamp can penetrate through the flexible member and appear on the end surface of the penetrating portion 42, so as to provide indication information for the user.

Be provided with a plurality of erection columns 22 on the installing support 2, erection column 22 is provided with first screw hole, is provided with the first fixed orifices 51 with erection column 22 one-to-one on the circuit board 5, and first fixed orifices 51 and threaded connection are worn to locate by the screw in first screw hole, have realized that circuit board 5 is fixed in on installing support 2. In this embodiment, the mounting posts 22 and the first fixing holes 51 are two sets.

Furthermore, the mounting bracket 2 is clamped or screwed to the frame 1, so that the mounting bracket 2 is fixed on the frame 1. In this embodiment, be provided with second fixed orifices 23 on the installing support 2, be provided with second screw hole 13 on the frame 1, second fixed orifices 23 and threaded connection in second screw hole 13 are worn to locate by the screw, have realized that installing support 2 is fixed in on the frame 1. Wherein, the second fixing hole 23 and the second threaded hole 13 are two groups.

Preferably, one of the mounting bracket 2 and the frame 1 is provided with a pin, and the other is provided with a positioning hole 12, and the pin can extend into the positioning hole 12. When the support 2 is installed, the pin extends into the positioning hole 12, so that positioning is provided for the installation support 2; on the other hand, the mounting bracket 2 is pre-fixed before screwing, the mounting difficulty of the mounting bracket 2 is reduced, and the operation is simple. In this embodiment, the mounting bracket 2 is provided with a pin, and the frame 1 is provided with a positioning hole 12.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A key structure, comprising:

a frame (1) provided with a first through hole (11);

the mounting bracket (2) is fixed on the inner side of the frame (1), and the mounting bracket (2) is provided with a second through hole (21);

the key cap (3) sequentially penetrates through the second through hole (21) and the first through hole (11), a flanging (31) is arranged on the key cap (3), and the flanging (31) abuts against one side, far away from the first through hole (11), of the mounting bracket (2);

the flexible piece (4) is arranged on one side, away from the first through hole (11), of the key cap (3);

the circuit board (5) is installed on one side, far away from the first through hole (11), of the installation support (2), a key (6) is arranged on the circuit board (5), and the key cap (3) abuts against the key (6) through the flexible piece (4).

2. The key structure according to claim 1, characterized in that the flexible member (4) is provided with a hanging lug (41), the hanging lug (41) comprises a cylindrical portion (411) and a limiting portion (412), a mounting hole is formed in the mounting bracket (2), the outer diameter of the limiting portion (412) is larger than the diameter of the mounting hole, and the limiting portion (412) can penetrate through the mounting hole and abut against one side, close to the first through hole (11), of the mounting bracket (2).

3. The key structure according to claim 2, wherein the plurality of hanging lugs (41) are arranged symmetrically outside the key cap (3) along a central axis of the key cap (3).

4. A key structure according to claim 1, characterized in that the key cap (3) is provided with a mounting groove (32), the flexible element (4) partly extending into the mounting groove (32).

5. The key structure according to claim 4, characterized in that a third through hole is arranged at the bottom of the mounting groove (32), the flexible member (4) is provided with an insertion portion (42), the insertion portion (42) penetrates through the third through hole, and the end surface of the insertion portion (42) is flush with the appearance surface of the key cap (3).

6. The key structure according to claim 1, wherein a plurality of mounting posts (22) are arranged on the mounting bracket (2), first threaded holes are arranged on the mounting posts (22), first fixing holes (51) corresponding to the mounting posts (22) one by one are arranged on the circuit board (5), and screws are inserted into the first fixing holes (51) and are in threaded connection with the first threaded holes.

7. The key structure according to any one of claims 1-6, characterized in that the flexible member (4) is made of silicone.

8. The key structure according to any one of claims 1-6, characterized in that said mounting bracket (2) is snapped or screwed to said rim (1).

9. Key structure according to claim 8 characterised in that one of said mounting bracket (2) and said bezel (1) is provided with pins and the other with positioning holes (12), said pins being able to protrude into said positioning holes (12).

10. An electronic product, characterized in that it comprises a key structure according to any one of claims 1-9.