CN219286259U

CN219286259U - Key structure

Info

Publication number: CN219286259U
Application number: CN202320771795.0U
Authority: CN
Inventors: 梁思雨; 毛华生
Original assignee: Dongguan Liesheng Electronic Co Ltd
Current assignee: Dongguan Liesheng Electronic Co Ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-06-30
Anticipated expiration: 2033-04-07

Abstract

The utility model belongs to the technical field of keys, and particularly relates to a key structure which comprises a shell, a main board, a key switch, a buffer piece, a key rod and a key cap, wherein the key switch is arranged on the shell; the key switch is connected with the main board; the buffer piece is arranged on the main board and is provided with an installation groove; the key switch is arranged in the mounting groove; the keycap is arranged on the outer wall of the shell; a key rod is arranged between the key cap and the buffer piece; the key rod is slidably arranged in the shell wall of the shell, and one end of the key rod is connected with the key cap. After the key cap is pressed down, the key cap pushes the key rod and the buffer piece, so that the function of pressing the key switch is realized, the space between the key cap and the key switch is further filled by adding the key rod and the buffer piece between the key cap and the key switch, the effective connection between the key cap and the key switch is ensured, the sensitivity of the key device is ensured, the buffer piece can protect the key switch, the pressure born by the key switch can be effectively buffered, and the key switch is prevented from being damaged due to falling.

Description

Key structure

Technical Field

The utility model belongs to the technical field of keys, and particularly relates to a key structure.

Background

With the development of modern electronic technology, electronic products gradually go deep into the life of people, and various electronic products such as telephones, mobile phones, notebook computers, remote controllers and the like accompany the daily life of people. The key switch is used as the main input device of the electronic product, and plays an important role.

The key in the current electronic product mainly comprises a key switch and a key cap, but because parts such as the key switch and the key cap all have certain machining errors in production, when various parts with certain machining errors are assembled into a key device, the situation of poor assembly caused by the fact that the distance between the key switch and the key cap is larger or smaller easily occurs. If the distance between the key switch and the key cap is bigger, the key cap still can not be contacted with the key switch after the key cap is pressed, so that the sensitivity of the key is reduced. If the distance between the key switch and the key cap is smaller, the key switch can be easily damaged when the key switch is pressed or dropped, and the practical service life of the electronic product is influenced.

Therefore, it is necessary to design a key structure.

Disclosure of Invention

The utility model aims to provide a key structure, and aims to solve the technical problem that the key device in the prior art is easy to have poor assembly due to the fact that the distance between a key switch and a key cap is larger or smaller after parts with certain machining errors are assembled into the key device.

In order to achieve the above object, an embodiment of the present utility model provides a key structure, including a housing and a main board; the main board is arranged in the shell; the device also comprises a key switch, a buffer piece, a key rod and a key cap; the key switch is connected with the main board; the buffer piece is arranged on the main board and is provided with an installation groove; the key switch is arranged in the mounting groove; the key cap is arranged on the outer wall of the shell; a key rod is arranged between the key cap and the buffer piece; the key rod is slidably arranged in the shell wall of the shell, and one end of the key rod is connected with the key cap.

Optionally, the key switch comprises a switch body and a side pressure plate which are both installed in the installation groove; the lower extreme of side pressure board with the lower extreme of switch body is connected, side pressure board from bottom to top to keeping away from the direction of switch body extends and with the inner wall butt of mounting groove.

Optionally, a horizontal pressing plate is arranged at the upper end of the side pressing plate; the horizontal pressing plate is abutted with edges of notch at two sides of the mounting groove.

Optionally, the upper end face of the horizontal pressing plate is provided with a bump; the bump is inserted into the main board.

Optionally, the side surface of the switch body protrudes outwards to form a switch contact; the switch contact is abutted with the inner wall of the mounting groove.

Optionally, the buffer is made of elastic silica gel.

Optionally, the buffer member is provided with a clamping portion; the clamping part is arranged above the mounting groove; the upper ends of the clamping parts and the mounting grooves are respectively abutted with two end faces of the main board, so that the main board is clamped.

Optionally, the shell is provided with a key groove; the key cap is arranged in the key groove; one end of the key rod extends out of the key groove and is connected with the key cap.

Optionally, the device further comprises an elastic piece; one end of the elastic piece is abutted with the inner wall of the key groove, and the other end of the elastic piece is connected with the key cap.

Optionally, the outer surface of the key rod bulges outwards to form a limit convex part; the limit convex part is abutted with the inner wall of the shell.

The above technical solutions in the key structure provided by the embodiments of the present utility model have at least one of the following technical effects: after pressing the key cap, the key cap promotes the button pole with the bolster, thereby realize pressing press key switch's function through increase button pole and bolster between key cap and key switch, the key cap with space between the key switch obtains further filling, has ensured to have effectual connection between key cap and the key switch, thereby has guaranteed button device's sensitivity, moreover the bolster can protect the key switch, can effectively cushion the pressure that the key switch received, prevent that the key switch from damaging because falling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a key structure according to an embodiment of the present utility model;

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

fig. 3 is a cross-sectional view of another view of a key structure according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a key switch according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a buffer member according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

100. a housing; 110. pressing a key groove; 200. a main board; 300. a key switch; 310. a switch body; 320. a side pressure plate; 321. a horizontal platen; 3211. a bump; 400. a buffer member; 410. a clamping part; 420. a mounting groove; 500. a key lever; 510. a limit protrusion; 600. a key cap; 700. an elastic member.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, as shown in fig. 1 to 3 and 5, a key structure is provided, including a case 100 and a main board 200. The main board 200 is installed in the housing 100. The key structure further includes a key switch 300, a buffer 400, a key lever 500, and a key cap 600. The key switch 300 is connected to the main board 200. The buffer 400 is mounted on the main board 200, and the buffer 400 is provided with a mounting groove 420. The key switch 300 is mounted in the mounting groove 420. The key cap 600 is mounted on the outer wall of the housing 100. A key lever 500 is provided between the key cap 600 and the buffer 400. The key lever 500 is slidably disposed in a wall of the housing 100, and one end of the key lever 500 is connected to the key cap 600.

After the key cap 600 is pressed down, the key cap 600 pushes the key lever 500 and the buffer 400, thereby realizing the function of pressing the key switch 300, and by adding the key lever 500 and the buffer 400 between the key cap 600 and the key switch 300, the space between the key cap 600 and the key switch 300 is further filled, so that the effective connection between the key cap 600 and the key switch 300 is ensured, thereby ensuring the sensitivity of the key device, and the buffer 400 can protect the key switch 300, effectively buffer the pressure applied to the key switch 300, and prevent the key switch 300 from being damaged due to falling.

When the user presses the key cap 600, the key cap 600 moves toward the inside of the key switch 300, thereby pushing the key lever 500, and the key lever 500 presses the buffer 400, thereby activating the key switch 300.

In one embodiment of the present utility model, as shown in fig. 3 to 5, the key switch 300 includes a switch body 310 and a side pressure plate 320, both of which are mounted in the mounting groove 420. The lower end of the side pressure plate 320 is connected to the lower end of the switch body 310, and the side pressure plate 320 extends from bottom to top in a direction away from the switch body 310 and abuts against the inner wall of the mounting groove 420. The switch body 310 is firmly fixed in the mounting groove 420 under the pressing of the inner wall of the mounting groove 420 against the side pressure plate 320. It should be noted that, the user only needs to draw the upper ends of the two side pressure plates 320 together, and the mounting groove 420 is released from pressing the switch body 310, so that the key switch 300 can be pulled out from the mounting groove 420.

In one embodiment of the present utility model, as shown in fig. 4 to 5, the upper end of the side pressure plate 320 is provided with a horizontal pressure plate 321. The horizontal pressing plate 321 abuts against the edges of the two side notches of the mounting groove 420. The horizontal pressing plate 321 is provided, so that a user can press the horizontal pressing plate 321 to draw the side pressing plate 320 together, and the key switch 300 can be assembled and disassembled more conveniently and rapidly.

In one embodiment of the present utility model, as shown in fig. 4, the upper end surface of the horizontal pressing plate 321 is provided with a bump 3211. The bump 3211 is inserted into the main board 200, so that the key switch 300 is more firmly connected to the main board 200 when it is inserted. It should be appreciated that the insertion of the bump 3211 into the main board 200 is not the only way to achieve a fixed connection of the key switch 300 to the main board 200. In other embodiments, the key switch 300 and the main board 200 may be fixedly connected by a threaded connection.

In one embodiment of the present utility model, the buffer 400 is made of elastic silica gel. The buffer member 400 effectively buffers the pressure applied to the switch body 310 or the impact force applied when falling by using the characteristic that the elastic silica gel has high elasticity, thereby effectively protecting the switch body 310 from damage.

In one embodiment of the present utility model, as shown in fig. 2, the buffer 400 is provided with a clamping portion 410. The clamping portion 410 is disposed above the mounting groove 420. The upper ends of the clamping part 410 and the mounting groove 420 are respectively abutted against both end surfaces of the main board 200, thereby clamping the main board 200.

The specific assembly production steps are as follows: the key switch 300 is first installed in the installation groove 420. The main board 200 is laid flat and slidably inserted between the holding portion and the mounting groove 420. During the sliding of the main board 200, the bump 3211 is inserted into a preset slot on the main board 200, thereby completing the assembly.

In one embodiment of the utility model, as shown in FIG. 3, the housing 100 is provided with a key slot 110. The key cap 600 is mounted in the key groove 110. One end of the key lever 500 protrudes out of the key groove 110 and is connected to the key cap 600. Specifically, in this example, the edge of the key cap 600 abuts against the inner wall of the key slot 110. The key cap 600 is pressed, and the key cap 600 slides in the key groove 110 in the direction of the housing 100, thereby pushing the key lever 500.

In one embodiment of the present utility model, as shown in fig. 3, the key structure further includes an elastic member 700. One end of the elastic member 700 abuts against the inner wall of the key slot 110, and the other end of the elastic member 700 is connected to the key cap 600. Specifically, in this embodiment, the elastic member 700 is a spring. When the key cap 600 is pressed, the spring is pressed to compress, and when the key cap 600 is released, the compressed spring rebounds and drives the key cap 600 to reset. In addition, the reaction force of the spring pressing against the key cap 600 can prevent the key cap 600 from easily sliding, thereby preventing false key triggering.

In one embodiment of the present utility model, as shown in fig. 2, the outer surface of the key lever 500 is bulged outwards to form a limit protrusion 510. The limit protrusion 510 abuts against the inner wall of the housing 100. The key cap 600 and the key lever 500 can be pushed into the interior of the housing 100 only, but cannot be pulled out from the housing 100.

It should be noted that the key structure in the embodiments of the present application may be used in a headset watch, and may also be used in other electronic devices and mobile terminals, which are not limited herein.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A key structure comprises a shell and a main board; the main board is arranged in the shell; the novel keyboard is characterized by further comprising a key switch, a buffer piece, a key rod and a key cap; the key switch is connected with the main board; the buffer piece is arranged on the main board and is provided with an installation groove; the key switch is arranged in the mounting groove; the key cap is arranged on the outer wall of the shell; a key rod is arranged between the key cap and the buffer piece; the key rod is slidably arranged in the shell wall of the shell, and one end of the key rod is connected with the key cap.

2. The key structure according to claim 1, wherein the key switch includes a switch body and a side pressure plate each mounted in the mounting groove; the lower extreme of side pressure board with the lower extreme of switch body is connected, side pressure board from bottom to top to keeping away from the direction of switch body extends and with the inner wall butt of mounting groove.

3. The key structure according to claim 2, wherein a horizontal pressing plate is provided at an upper end of the side pressing plate; the horizontal pressing plate is abutted with edges of notch at two sides of the mounting groove.

4. The key structure according to claim 3, wherein an upper end face of the horizontal pressing plate is provided with a bump; the bump is inserted into the main board.

5. The key structure of claim 4, wherein the side surface of the switch body protrudes outwards to form a switch contact; the switch contact is abutted with the inner wall of the mounting groove.

6. The key structure of any one of claims 1-5, wherein said cushioning member is made of resilient silicone.

7. The key structure according to claim 6, wherein the buffer member is provided with a holding portion; the clamping part is arranged above the mounting groove; the upper ends of the clamping parts and the mounting grooves are respectively abutted with two end faces of the main board, so that the main board is clamped.

8. The key structure according to claim 7, wherein the housing is provided with a key groove; the key cap is arranged in the key groove; one end of the key rod extends out of the key groove and is connected with the key cap.

9. The key structure of claim 8, further comprising an elastic member; one end of the elastic piece is abutted with the inner wall of the key groove, and the other end of the elastic piece is connected with the key cap.

10. The key structure of claim 9, wherein the outer surface of the key lever is bulged outwardly to form a limit protrusion; the limit convex part is abutted with the inner wall of the shell.