CN204927139U - Silence keyboard button - Google Patents

Abstract

The utility model provides a mute keyboard button, which comprises a base, an upper cover, a pressing shaft, a return spring and a switch assembly, the upper cover is connected with the base to form a receiving chamber; the pressing shaft, the return spring and the switch assembly are all installed in the In the accommodating cavity, the switch assembly is used to control the electrical connection and disconnection of the key, and the mute keyboard key also includes a mute pad connected to the press shaft, and the mute pad includes an upper abutting end and the lower abutting end, when the button is in the working state, the lower abutting end is abutted against the bottom wall of the accommodating cavity; The walls are against each other. During the use of the mute keyboard keys, the mute pad forms an effective buffer and mute effect; because the mute pad moves synchronously with the axis, the mute pad will not be misplaced after long-term use, and the keys are comfortable to use , Durable.

Description

A silent keyboard key

technical field

The utility model relates to the field of keyboard key switches, in particular to a mute keyboard key.

Background technique

The keyboard key switch is usually made of plastic material. When the key is pressed on the shaft, it will touch the lower cover, and when it is popped up, it will touch the upper cover, so it is easy to make noise when it is pressed and released.

In order to realize the mute of the keyboard keys, a common method is to form a buffer by adding elastic pads or gaskets under the keys, thereby reducing the key press sound, as described in an electronic mechanical switch disclosed by our company's patent CN201320551213. The guide post is inserted into the middle through hole of the convex post and can slide along the length direction of the middle through hole. A mute pad is placed in the middle through hole. When the pressing body is pressed down, the guide post will first contact the mute pad. Thereby reducing noise. However, the above-mentioned patents, as well as other mute keyboards on the market, only add a mute mechanism under the key, so they can only realize the mute when the key is pressed, and after the key pops up, it will still make a sound when the key hits the top of the upper cover. , the sound cannot be fully muted.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a mute keyboard key that can realize mute when both are pressed and popped up.

In order to solve the above problems, the technical scheme adopted in the utility model is as follows:

A mute keyboard key, comprising a base, an upper cover, a press shaft, a return spring and a switch assembly, the upper cover is connected to the base to form a housing chamber; the press shaft, return spring and switch assembly are all installed in the housing chamber Inside, the switch assembly is used to control the electrical connection and disconnection of the mute keyboard keys, the mute keyboard keys also include a mute pad, the mute pad is connected to the press shaft, and the mute pad includes an upper abutting end and the lower abutment end, when the button is in the working state, the lower abutment end is abutted against the bottom wall of the accommodation chamber; when the button is in the static state, the upper abutment end of the mute pad is in contact with the top of the accommodation chamber The walls are against each other.

Preferably, the base is provided with a slide groove for the mute pad to slide up and down.

As a preference, the sound-absorbing pads are two pieces and distributed symmetrically along the axis.

Preferably, the pressing shaft is provided with a card slot for installing the mute pad.

Preferably, the silent pad further includes a socket part matched with the pressing shaft, and the silent pad is fixedly connected with the pressing shaft through the socket part in a detachable manner.

Preferably, the pressing shaft is provided with a mounting groove for mounting a return spring.

Preferably, the mute pad is a TPE rubber pad, a silicone pad or a rubber pad.

Preferably, the switch assembly is a photosensitive switch, the photosensitive switch includes a light emitting element and a light sensor, and a stopper is arranged on the shaft, and the stopper is used to block the light signal between the light emitting element and the light sensor.

Preferably, the switch assembly includes a moving contact piece and a stationary contact piece, at least one static contact is provided at the upper end of the stationary contact piece, and a moving contact matching the static contact is provided at the upper end of the moving contact piece ; When the button is in the working state, the movable contact is in electrical contact with the static contact, and when the button is in the static state, the movable contact is separated from the static contact.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model provides a mute keyboard key. The mute keyboard key includes a mute pad connected with a press shaft. When the mute keyboard key is in a working state, the lower abutting end of the mute pad is opposed to the lower wall of the accommodating cavity. ; In the static state, the upper end of the mute pad is opposed to the upper wall of the accommodating cavity, avoiding the direct collision of the upper cover or the base when the axis is switched between the working state and the static state, thereby realizing the mute. Because the mute pad moves synchronously with the press shaft, the mute pad will not be misplaced after long-term use, and the buttons are comfortable to use and durable.

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the split structure schematic diagram of the present utility model;

Fig. 3 is a schematic diagram of the matching structure of the axis and the mute pad;

Fig. 4 is the structural representation of the mute pad of the present utility model;

Fig. 5 is a schematic diagram of the axis-by-axis structure of the utility model.

In the accompanying drawings 1-5, each reference sign: 1, base; 11, accommodation cavity; 12, sliding groove; 2, upper cover; 3, press shaft; 31, shaft column; 32, card slot; 33, installation slot ; 34, stopper; 4, return spring; 5, mute pad; 51, upper abutment end;

Detailed ways

As shown in Fig. 1 and Fig. 2, a mute keyboard button includes a base 1, an upper cover 2, a press shaft 3, a return spring 4 and a switch assembly, and the upper cover is connected with the base to form an accommodating chamber 11; the press The shaft, the return spring and the switch assembly are all installed in the accommodating cavity, and the switch assembly is used to control the electrical connection and disconnection of the mute keyboard key. The mute keyboard key also includes a mute pad 5, and the mute pad Connected with the pressing shaft, the mute pad includes an upper abutment end 51 and a lower abutment end 52. When the button is in the working state, the lower abutment end is abutted against the bottom wall of the accommodating cavity; the button is in the static state , the upper abutting end of the mute pad is abutted against the top wall of the accommodating chamber.

In the utility model, in the working state, that is, when the keyboard keys are forced to move downward to make the keyboard keys electrically connected, the lower end of the mute pad is opposed to the bottom wall of the accommodating cavity, that is, the mute pad is pressed The lower abutting part effectively plays a buffer role in the lowering process, reducing the generation of noise; in the static state, that is, when the keyboard keys are not stressed, the upper abutting end of the mute pad is abutted against the top wall of the accommodating cavity, that is, the The silent heat pad effectively cushions the springback process of pressing the axis, thereby reducing the generation of noise.

In the utility model, the silent pad and the pressing shaft move synchronously. During use, the silent pad and the pressing shaft are not easy to be misaligned, durable, and the keys feel good when used.

In the utility model, for the keyboard key provided with the limiting device, the mute pad forms a good buffering effect between the limiting device according to the axis and the inner wall of the accommodating cavity.

In the utility model, for the keyboard keys provided with the limiting device, the mute pad can replace the limiting device according to the axis.

In the present utility model, as shown in Figure 2, the lower end of the shaft is provided with a shaft column 31, and the base is provided with a lumen (not shown) that matches the shaft column, and the shaft column Vertical reciprocating movement in the lumen.

As a further solution of the present invention, the base is provided with a slide groove 12 for the mute pad to slide up and down, and the mute pad moves back and forth along the slide groove, and the keyboard feels more comfortable when used.

As a further solution of the utility model, the mute pads are two pieces and distributed symmetrically along the axis, so that the axis is more stable during use, effectively improves the mute effect, and feels more comfortable when used.

As a further solution, the pressing shaft is provided with a card slot 32 for installing the mute pad, so as to improve the firmness of the connection between the mute and the card slot.

As a further solution, as shown in Figure 4, the silent pad also includes a sleeve portion 53 that matches the shaft, and the silent pad is fixedly connected to the shaft through the sleeve portion in a detachable manner for easy replacement. Silent pad.

As a further solution, the pressing shaft is provided with a mounting groove 33 for installation of the return spring, so as to improve the firmness of the connection between the return spring and the pressing shaft.

In the utility model, the mute pad is a material with elastic deformation properties, such as a TPE rubber pad, a silica gel pad, or a rubber pad.

In the utility model, the switch assembly is a photosensitive switch, and the photosensitive switch includes a light emitting element (not shown) and a photosensor (not shown), as shown in Figure 5, a stopper 34 is arranged on the shaft , the block is used to block the light signal between the light emitting element and the light sensor; when the button is in a static state, the block is located between the light emitting element and the light sensor and blocks the light signal between the two ; When the button is in the working state, the stopper leaves, and the light-emitting element is electrically connected to the light sensor through an optical signal.

In the utility model, the switch assembly is a mechanical switch assembly, and the switch assembly includes a moving contact piece (not shown in the figure) and a stationary contact piece (not shown in the figure), and at least one Static contact (not shown), the upper end of the moving contact is provided with a moving contact (not shown) that matches the static contact; when the button is in the working state, the moving contact and the static The contacts are in electrical contact, and when the button is in a static state, the movable contact is separated from the static contact.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. The scope of protection required by the utility model.

Claims (9)

1. A mute keyboard button, comprising a base, an upper cover, a push shaft, a return spring and a switch assembly, the upper cover is connected to the base to form an accommodating chamber; the press shaft, return spring and switch assembly are all mounted on the In the accommodating chamber, the switch assembly is used to control the electrical on and off of the mute keyboard keys, characterized in that, The mute keyboard key also includes a mute pad, the mute pad is connected to the press shaft, the mute pad includes an upper abutment end and a lower abutment end, and when the key is in a working state, the lower abutment end is connected to the accommodating end. The bottom wall of the chamber resists; when the button is in a static state, the upper resisting end of the mute pad resists against the top wall of the accommodating chamber. 2. The mute keyboard key according to claim 1, wherein the base is provided with a sliding groove for the mute pad to slide up and down. 3 . The mute keyboard key according to claim 1 , wherein the mute pads are two pieces and distributed symmetrically along the axis. 4 . 4 . The mute keyboard key according to claim 1 , wherein the pressing shaft is provided with a slot for installing the mute pad. 5 . 5. The mute keyboard key according to claim 1, wherein the mute pad further comprises a sleeve part matched with the press shaft, and the mute pad is detachably connected to the press shaft through the sleeve part. Fixed connection. 6 . The mute keyboard key according to claim 1 , wherein the pressing shaft is provided with a mounting groove for mounting a return spring. 7 . 7. The mute keyboard key according to claim 1, the mute pad is a TPE rubber pad, a silicone pad or a rubber pad. 8. The mute keyboard key according to claim 1, wherein the switch assembly is a light sensor switch, the light sensor switch includes a light emitting element and a light sensor, and a stopper is arranged on the press shaft, and the stopper Used to block the light signal between the light emitting element and the light sensor. 9. The mute keyboard key according to claim 1, wherein the switch assembly comprises a moving contact piece and a stationary contact piece, at least one static contact is arranged on the upper end of the stationary contact piece, and the moving contact piece The upper end of the sheet is provided with a moving contact that matches the static contact; when the button is in working state, the moving contact is in electrical contact with the static contact; when the button is in a static state, the moving contact point is separated from the stationary contacts.