CN219350055U - Key module and keyboard device - Google Patents

Abstract

The application relates to a button module and keyboard device, button module includes: a switch board; the key is arranged on one side of the switch board and comprises a movable key cap, and at least two opposite corners of the key cap are provided with convex parts; the key frame is located with the button the same side of switch board is equipped with and is used for the holding hole that the key cap just runs through and is located the recess of holding hole lateral wall, convex part clearance fit in the recess, the recess is keeping away from switch board one side is equipped with and is used for blockking the blocking part of convex part. The key module can effectively prevent the key of the key module from falling off or being detached and the like.

Description

Key module and keyboard device

Technical Field

The application belongs to the technical field of keyboards and relates to a key module and a keyboard device.

Background

In the related art, a generally ultra-thin key module is used on an electronic device such as a pen machine, a personal computer, etc., as shown in fig. 1, the key module includes a bottom plate 11, a switch board 12, and keys, the keys are composed of a keycap 13, scissors legs 14 and silica gel particles 15, the scissors legs are connected between the keycap and the bottom plate, the scissors legs play a role of bouncing up after the keycap is pressed, the silica gel particles are arranged in the middle of the scissors legs, and the collision part of the silica gel particles is contacted with a switch of the switch board after the keycap is pressed to generate an input signal. In the use process of the key module with the structure, the key cap is easy to drop from the scissor legs or to be scratched, so that the key module and the keyboard capable of preventing the key cap from falling off or being detached and other problems are required in the market.

Disclosure of Invention

In order to overcome the problems in the related art, the application aims to provide a key module which can effectively prevent the key of the key module from falling off or being detached and the like.

The application is realized by the following technical scheme.

The technical scheme provides a button module, includes:

a switch board;

the key is arranged on one side of the switch board and comprises a movable key cap, and at least two opposite corners of the key cap are provided with convex parts;

the key frame is located with the button the same side of switch board is equipped with and is used for the holding hole that the key cap just runs through and is located the recess of holding hole lateral wall, convex part clearance fit in the recess, the recess is keeping away from switch board one side is equipped with and is used for blockking the blocking part of convex part.

The key module has the technical effects that the convex parts of the key caps are arranged at the four corners of the key caps, the size of the key caps is not required to be increased, the key caps are not required to be limited by the width of the bone position of the key frame, and the grooves and the limiting parts of the key frame are utilized to limit the movement of the convex parts so as to increase the anti-falling function of the key caps; the key module is applicable to the bottom plates with different strokes and different materials.

In one embodiment of this aspect, the recess extends in the direction of the receiving hole, one end of the recess extends to a surface of the key frame adjacent to the switch board, and the other end of the recess extends to the blocking portion.

In one embodiment of the present utility model, the protruding portion is provided on a side wall of the key cap, and the protruding portion is formed by extending the side wall of the key cap outward.

In one embodiment of the present utility model, the number of the protruding portions is two or four, and the protruding portions are symmetrically disposed at the corners of the key cap.

In one embodiment of the technical scheme, the keyboard further comprises a bottom plate, and the switch plate and the key frame are connected to the bottom plate;

the key also comprises an elastic supporting piece, wherein the elastic supporting piece is connected with the bottom plate and the keycap, so that the keycap moves relative to the bottom plate.

In one embodiment of this aspect, the elastic support is a scissor-type support.

In one embodiment of this aspect, the key further includes an elastomer, the elastomer being disposed between the keycap and the switch board;

the elastic body is provided with an abutting part, and the abutting part of the elastic body can be abutted against the touch switch of the switch board after the key cap is pressed.

In one embodiment of this aspect, the elastomer is a silicone gel.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

Fig. 1 is a schematic diagram of a key structure in a key module in the prior art.

Fig. 2 is a schematic structural diagram of a key module according to an embodiment of the present application.

Fig. 3 is a schematic front view of a key module according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional view of the key module shown in fig. 3 along the M-M direction.

Fig. 5 is an exploded view of a key module according to an embodiment of the present application.

Fig. 6 is a schematic structural view of a keyboard apparatus according to an embodiment of the present application.

Fig. 7 is a partial structural schematic diagram of a keyboard apparatus shown in an embodiment of the present application.

Reference numerals illustrate:

11-a bottom plate; 12-a switch board; 121-touch switch; 13-a key cap; 13-convex part 1; 14-elastic support; 15-an elastomer; 151-a collision part; 16-a key frame; 161-receiving holes; 162-groove; 163-barriers.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which some embodiments of the present application are shown, and it is apparent that some, but not all embodiments of the present application are described. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes the technical scheme of the embodiments of the present application in detail with reference to the accompanying drawings.

As shown in fig. 2 to 5, an embodiment of the present application provides a key module, including: the switch board 12, the key and the key frame 16, the key is arranged on one side of the switch board 12, the key comprises a movable key cap 13, and at least two opposite corners of the key cap 13 are provided with convex parts 131; the key frame 16 and the keys are arranged on the same side of the switch board 12, the key frame 16 is provided with a containing hole 161 for containing the keycap 13 and penetrating through the same, and a groove 162 positioned on the side wall of the containing hole 161, the convex part 131 is movably matched in the groove 162, and a blocking part 163 for blocking the convex part 131 is arranged on one side of the groove 162 away from the switch board 12.

In this way, the protruding portions 131 of the key cap 13 are disposed at the four corners of the key cap 13, so that the size of the key cap 13 is not required to be increased, the bone width of the key frame 16 is not required to be limited, and the movement of the protruding portions 131 is limited by the grooves 162 and the limiting portions of the key frame 16, so that the anti-drop function of the key cap 13 is increased.

The key module of this embodiment may be a key module of different process keys and a base plate 11 made of different materials, and it is understood that the keys may be various types of keys, each key includes a key cap 13, and the key module has a key frame 16 capable of limiting the key caps 13 from falling or being scratched.

In the present embodiment, the recess 162 extends in the direction of the receiving hole 161, one end of which extends to a surface of the key frame 16 adjacent to the switch board 12, and the other end of which extends to the blocking portion 163.

In this embodiment, the protrusion 131 is disposed on a sidewall of the key cap 13, and the protrusion 131 is formed on the sidewall of the key cap 13. Specifically, the number of the protrusions 131 is two or four, and the protrusions are symmetrically disposed at the corners of the key cap 13.

In this embodiment, the key module further includes a base plate 11 for supporting the main body, and the switch plate 12 and the key frame 16 are connected to the base plate 11; the key further comprises an elastic support member 14, wherein the elastic support member 14 is connected to the base plate 11 and the keycap 13, so that the keycap 13 moves relative to the base plate 11. Specifically, the elastic support 14 is a scissor-type support.

In other embodiments, the base plate 11 is not an essential component, and a rigid switch plate 12 may be used as the supporting body, and the keys are directly connected to the switch plate 12 by soldering.

In this embodiment, the key further includes an elastic body 15, where the elastic body 15 is disposed between the keycap 13 and the switch board 12; the elastic body 15 is provided with a contact portion 151, and when the key cap 13 is pressed, the contact portion 151 of the elastic body 15 can be made to contact the touch switch 121 of the switch board 12.

Specifically, the elastic body 15 is a silicone rubber particle. The switch board 12 may be a PCB switch board or a membrane switch board, the touch switch 121 is formed by a circuit provided on the switch board 12, and after the contact portion 151 of the elastic body 15 contacts the touch switch 121, the circuit of the touch switch is electrically conducted to trigger an input signal, where the switch board 12 is a membrane switch board, and the touch switch 12 is a membrane switch.

As shown in fig. 6 and 7, another embodiment of the present application is to provide a keyboard device, which includes a plurality of key modules in the above embodiments that are arranged according to a certain rule, where the switch board 12, the bottom board 11 and the key frame 16 of each key module are integrated, and the switch board 12 and the key frame 16 are connected with the bottom board 11, and since the protruding portions 131 of the key cap 13 are disposed at four corners of the key cap 13, the distance between two adjacent keys can be smaller, so that the overall layout of the keyboard device is more compact, and the occupied volume is small. The keyboard device is especially suitable for electronic equipment with high keyboard volume requirement such as pen computers and the like.

The embodiments of the present application have been described above, the foregoing description is exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (9)

1. The button module, its characterized in that includes:

a switch board;

the key is arranged on one side of the switch board and comprises a movable key cap, and at least two opposite corners of the key cap are provided with convex parts;

the key frame is located with the button the same side of switch board is equipped with and is used for the holding hole that the key cap just runs through and is located the recess of holding hole lateral wall, convex part clearance fit in the recess, the recess is keeping away from switch board one side is equipped with and is used for blockking the blocking part of convex part.

2. The key module according to claim 1, wherein the recess extends in the direction of the receiving hole, one end of the recess extends to a surface of the key frame adjacent to the switch board, and the other end of the recess extends to the blocking portion.

3. The key module according to claim 1, wherein the protrusion is disposed on a sidewall of the key cap, and the protrusion is formed by extending the sidewall of the key cap outwards.

4. The key module according to claim 1, wherein the number of the protruding portions is two or four, and the protruding portions are symmetrically arranged at corners of the key cap.

5. The key module of claim 1, further comprising a base plate, wherein the switch plate and the key frame are connected to the base plate;

the key also comprises an elastic supporting piece, wherein the elastic supporting piece is connected with the bottom plate and the keycap, so that the keycap moves relative to the bottom plate.

6. The key module of claim 5, wherein the elastic support is a scissor-type support.

7. The key module of claim 5, wherein the key further comprises an elastomer disposed between the key cap and the switch plate;

the elastic body is provided with an abutting part, and the abutting part of the elastic body can be abutted against the touch switch of the switch board after the key cap is pressed.

8. The key module of claim 7, wherein the elastomer is a silicone gel.

9. A keyboard device comprising a key module according to any one of claims 1 to 8.

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