WO2022143375A1

WO2022143375A1 - Single-arm type conduction and sound production mechanism triggered by balancing frame and applied to keyboard switch

Info

Publication number: WO2022143375A1
Application number: PCT/CN2021/140718
Authority: WO
Inventors: 吴福喜; 吕攀豪
Original assignee: 东莞市凯华电子有限公司
Priority date: 2020-12-29
Filing date: 2021-12-23
Publication date: 2022-07-07
Also published as: CN214175671U; TWM627695U

Abstract

A single-arm type conduction and sound production mechanism triggered by a balancing frame and applied to a keyboard switch, comprising a balancing frame (1), and a conduction and sound production assembly (3) triggered by the balancing frame (1) to conduct and produce sound, wherein the conduction and sound production assembly (3) comprises an elastic body (33) and at least one conduction part; the elastic body (33) is provided with a conduction and sound production elastic arm (331) extending towards the upper portion of the conduction part; and the conduction and sound production elastic arm (331) is triggered by the balancing frame (1) to act. The single-arm type conduction and sound production mechanism triggered by the balancing frame and applied to the keyboard switch provided can achieve the conduction and sound production functions. The conduction and sound production action accuracy is high, the conduction and sound production sensitivity can be improved, the occupied space is small, and thinning of the keyboard switch is facilitated.

Description

A gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch

technical field

The utility model relates to the field of keyboard switches, in particular to a gimbal trigger single-arm conduction sounding mechanism applied to keyboard switches.

Background technique

At present, there are many keyboard switches with sound on the market, all of which are adding a sound-emitting structure to the traditional keyboard switch. This sound-emitting structure is separated from the conduction structure, and the two structures occupy a lot of space in the keyboard switch respectively, resulting in the keyboard switch. It is difficult to make thin.

At the same time, the conduction structure and/or sound-emitting structure in the existing keyboard switch has low action accuracy, resulting in low trigger sensitivity of the conduction function and sound-emitting function, and is easy to wear and has a short life after long-term use.

Utility model content

In view of the above deficiencies, the purpose of the present invention is to provide a gimbal trigger single-arm conduction sounding mechanism applied to a keyboard switch, which can realize conduction and sounding functions, and has high conduction and sounding action accuracy, and can improve conduction. With the sound sensitivity, the space is small, which is beneficial to realize the thinning of the keyboard switch.

The technical scheme that the utility model adopts to achieve the above-mentioned purpose is:

A gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch is characterized in that it comprises a gimbal and a conduction sounding assembly triggered by the gimbal to conduct conduction and sound, wherein the conduction sounding assembly It includes an elastic body and at least one conducting portion. The elastic body has a conducting sounding elastic arm extending toward the top of the conducting portion, and the conducting sounding elastic arm is triggered by the gimbal.

As a further improvement of the present invention, the conduction sounding assembly includes two conduction parts, namely a first conduction part and a second conduction part, the first conduction part is in contact with the elastic body, and the conduction sound The elastic arm extends above the second conducting portion.

As a further improvement of the present invention, the elastic body is a torsion spring.

As a further improvement of the present invention, the material of the torsion spring is copper.

As a further improvement of the present invention, the material of the torsion spring is phosphor bronze.

As a further improvement of the present invention, the conduction sounding assembly is installed in a mounting seat, a movable groove for the conduction sounding elastic arm is formed on the lower end surface of the mounting seat, and a downward protruding groove is formed in the movable groove A mounting shaft is provided for the main body of the torsion spring to be mounted on, and an opening is provided on the mounting seat for exposing the end of the conducting sounding elastic arm.

As a further improvement of the present invention, a guiding slope is formed on the inner wall of the movable groove close to the conducting sounding elastic arm.

As a further improvement of the present invention, the first conducting portion and the second conducting portion are both conductive sheets, the conducting sheets are arranged at the lower end of the movable slot and are buckled on the mounting seat, and the conducting sheets are electrically connected to the PCB board.

As a further improvement of the present invention, a pressure rod is formed on the balance frame, which acts to conduct the end of the sounding elastic arm.

As a further improvement of the present invention, a limit hook for limiting the position of the end of the conducting sounding elastic arm is formed on one side of the pressing rod.

As a further improvement of the present invention, an inclined surface is formed on the pressing rod.

As a further improvement of the present invention, the balance frame includes a balance rod A, a balance rod B, and a return tension spring connected between the balance rod A and the balance rod B, wherein the pressure rod is arranged on the balance rod on pole A or balance pole B.

The beneficial effects of the present utility model are:

(1) By integrating the components that realize the functions of conduction and sound, specifically, the functions of conduction and sound can be realized by a single elastic arm (conducting sounding elastic arm) on the elastic body, which is similar to the existing conduction structure. Compared with the sound-emitting structure, the structure is greatly simplified, the volume of the entire component is reduced, and the occupied space is small, which is beneficial to realize the thinning of the keyboard switch.

(2) The gimbal is used to directly trigger the conduction and sound components to achieve two functions. One press can realize the conduction and sound functions, which not only has high action accuracy, but also improves the sensitivity of conduction and sound; The keyboard switch of the invention omits the structure such as the guide core, reduces the occupation of the internal space, and is beneficial to realize the thinning of the keyboard switch.

(3) The phosphor bronze torsion spring is used as the elastic body. The phosphor bronze torsion spring has the characteristics of large elasticity, large current, low resistance, high sensitivity and long life, which can significantly improve the sensitivity of conduction action and sounding action.

The above is an overview of the technical solution of the utility model. The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

Description of drawings

1 is an exploded view of the utility model;

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

Fig. 3 is the structural representation of the balance rod B in the utility model;

4 is a schematic structural diagram of the conductive sound-emitting component installed in the mounting seat in the present invention;

5 is a schematic structural diagram of a conducting sound-emitting assembly in the present invention;

6 is a schematic structural diagram of the torsion spring installed in the mounting seat in the present invention;

7 is a schematic structural diagram of the first conducting portion and the second conducting portion mounted on the mounting seat in the present invention;

FIG. 8 is a schematic diagram of the external structure of the conduction sounding mechanism of the present invention installed in the keyboard switch.

Detailed ways

In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

Please refer to FIGS. 1 and 2 , an embodiment of the present invention provides a gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch, comprising a gimbal 1 and a gimbal 1 that triggers conduction and emits sound The conduction sounding component 3, wherein the conduction sounding component 3 includes an elastic body 33 and at least one conduction part, the elastic body 33 has a conduction sounding elastic arm 331 extending above the conduction part, the conduction The sounding elastic arm 331 is activated by the gimbal 1 . When the gimbal 1 is pressed down, the conductive sounding elastic arm 331 of the elastic body 33 is driven by the gimbal 1 to move down, and after moving down for a period of time, a conduction signal is generated between the conductive sounding elastic arm 331 and the conduction part. , to achieve the conduction function; then, the conduction sounding elastic arm 331 bounces and knocks the gimbal 1 and/or other components to generate sound to achieve the sounding function. When the pressure on the gimbal 1 is released, the force of the gimbal 1 on the conduction sounding elastic arm 331 disappears. Therefore, the conduction sounding elastic arm 331 is moved up and reset by its own elastic restoring force, the conduction signal disappears, and the disconnection is realized. function on.

The single-arm conduction sounding mechanism triggered by the gimbal of this embodiment is applied to the keyboard switch. Each time the switch is pressed, the conduction function of the switch is realized, and the sounding function is also realized, and the action accuracy of each component is high, which can improve the conduction and Sound sensitivity, long life. At the same time, the conducting and sounding functions can be realized by a single conducting sounding elastic arm 331 on the elastic body 33, so that the volume of the entire component that realizes the conducting and sounding functions is reduced, and the occupied space is small, which is beneficial to realize the thin-type keyboard switch. change.

In the present embodiment, the conduction sounding elastic arm 331 is combined with the conduction part to form a variety of different conduction components, such as:

(1) Mechanical conduction components;

(2) For light conduction components;

(3) Magnetic conduction components;

(4) Hall conduction components.

The following is an example of a mechanical conduction assembly formed by the conduction sounding elastic arm 331 and the conduction part. Specifically, as shown in FIG. 5 , the conduction sounding assembly 3 includes two conduction parts, which are the first A conducting portion 31 and a second conducting portion 32, the first conducting portion 31 is in contact with the elastic body 33 to achieve electrical connection, and the elastic body 33 and the first conducting portion 31 are combined to be equivalent to a moving piece; When the sound-emitting elastic arm 331 extends above the second conducting portion 32, the second conducting portion 32 is equivalent to a static piece.

Specifically, the elastic body 33 is a torsion spring 33', and the material of the torsion spring 33' is copper. When the first conducting portion 31 is in contact with the torsion spring 33', the first conducting portion 31 and the torsion spring are realized. 33' the electrical connection of both. Preferably, the material of the torsion spring 33' is phosphor bronze, which has the characteristics of high elasticity, large current, low resistance, high sensitivity and long life. Using it as the torsion spring 33' can significantly improve the conduction action. Sensitivity with vocal movements.

When the gimbal 1 is pressed down, the gimbal 1 drives the conducting sounding elastic arm 331 to contact the second conducting part 32, so that the first conducting part 31 and the second conducting part are connected by the elastic body 33 (torsion spring 33'). The electrical conduction of the part 32, that is, the conduction function is realized; when the pressing on the gimbal 1 is released, the conduction sounding elastic arm 331 is moved up and reset by its own elastic restoring force, and the conduction sounding elastic arm 331 is connected with the second guide arm 331. When the pass portion 32 is separated, the disconnection function is realized.

As for the installation method of the conduction sounding assembly 3 , as shown in FIG. 4 and FIG. 6 , the conduction sounding assembly 3 in this embodiment is installed on a mounting seat 4 , and the lower end surface of the mounting seat 4 is formed with a conducting sounding elastic arm. 331 is a movable groove 41 that bounces, and a mounting shaft 42 for the main body of the torsion spring 33 ′ is protruded downward in the movable groove 41 to limit the position of the main body of the torsion spring 33 ′. There is an opening 43 exposed at the end of the sounding elastic arm 331 for conducting the sound, so as to be driven by the gimbal 1 to move down. When the gimbal 1 drives the conductive sounding elastic arm 331 to move down, the conductive sounding elastic arm 331 moves down in the movable slot 41 .

When the gimbal 1 drives the conductive sounding elastic arm 331 to move down, in order to make the conductive sounding elastic arm 331 detach from the gimbal 1 and bounce, as shown in FIG. 4 , in this embodiment, the movable groove 41 is close to the guide A guiding slope 44 is formed on the inner wall of the sound-emitting bomb arm 331. When the gimbal 1 drives the sound-emitting bomb arm 331 to move down, the guide slope 44 guides the sound-emitting bomb arm 331 to move to one side, so that After the conducting sounding bomb arm 331 moves down to a certain stroke, the conducting sounding bomb arm 331 is in contact with the second conducting part 32, and then the conducting sounding bomb arm 331 is successfully separated from the balance frame 1 to the conducting sounding bomb arm 331 The downward acting surface, so as to bounce, knocking the balance frame 1, the mounting seat 4 or other components to make a sound.

In this embodiment, as shown in FIG. 7 , the first conducting portion 31 and the second conducting portion 32 are both conductive sheets, and the conducting sheets are disposed at the lower end of the movable slot 41 and fastened to the mounting seat 4 . And the conductive sheet is electrically connected to the PCB board.

In this embodiment, in order to press the conducting sounding elastic arm 331 more accurately, as shown in FIG. 2 and FIG. A pressure rod 14 of the part. When the gimbal 1 moves down, the pressing rod 14 directly acts on the conducting sounding elastic arm 331 to achieve more accurate pressing.

At the same time, in order to enable the pressure rod 14 to drive the conductive sounding elastic arm 331 to move downward until the conductive sounding elastic arm 331 can be in contact with the second conducting portion 32, as shown in FIG. A limiting hook 141 is formed on one side of the pressing rod 14 for limiting the end of the conducting sounding elastic arm 331 . When the pressure rod 14 moves down, the limit hook 211 limits the end of the conduction sounding elastic arm 331, so that the pressure rod 14 can drive the conduction sounding elastic arm 331 to move down until the conduction sounding elastic arm 331 and After the second conducting portion 32 is in contact with the conducting portion, it is separated from the pressing rod 14 and bounces, so as to achieve knocking and sounding.

In order to make the conductive sounding elastic arm 331 bounce smoothly after it is separated from the pressing rod 14, as shown in FIG. The opening of the pressure lever 14 and the bouncing provide a space to give way.

In this embodiment, the balance frame 1 includes a balance rod A 11, a balance rod B 12, and a return tension spring 13 connected between the balance rod A 11 and the balance rod B 12, wherein the pressure The rod 14 is arranged on the balance rod A 11 or the balance rod B 12.

When the single-arm conduction sounding mechanism triggered by the gimbal of this embodiment is applied to the keyboard switch, the balance rod A 11 and the balance rod B 12 are rotatably mounted on the base 10 , and the mounting seat 4 is also arranged on the base 10 1 and 2; at the same time, the balance rod A 11 and the balance rod B 12 are rotatably connected to the keycap 30, as shown in Figure 8. During the pressing process, the gimbal 1 plays a role of pressing and balancing, which is beneficial to improve the stability of the entire keyboard switch. Of course, the mounting seat 4 can also be directly disposed on the PCB. When the keycap 30 is pressed down, the balance rod A 11 and the balance rod B 12 can be driven to swing downward.

As another implementation of this embodiment, when the conducting sound-emitting elastic arm 331 is combined with the conducting portion to form a pair of light conducting components, the conducting portion is composed of a light emitting tube and a light receiving tube, and emits sound when conducting A light blocking plate is arranged on the elastic arm 331 . The gimbal 1 drives the light blocking plate on the sounding elastic arm 331 to conduct or block the optical signal path between the light emitting tube and the light receiving tube, so as to realize the on and off function of the switch. For the specific working principle, please refer to the following prior art: application number 201510964805.2, patent name: modular photoelectric switch keyboard button.

As another implementation of this embodiment, when the conducting sounding elastic arm 331 is combined with the conducting part to form a magnetic conduction component, the conducting part is a magnetic inductor, and a magnet is arranged on the conducting sounding elastic arm 331 . The sounding elastic arm 331 is driven by the gimbal 1 to control the distance between the magnet and the magnetic inductor, so as to realize the on and off functions of the switch. For the specific working principle, please refer to the following prior art: application number: 201510049623.2, patent name: a key and a keyboard.

As another implementation of this embodiment, when the conduction sounding elastic arm 331 is combined with the conduction part to form a Hall conduction assembly, the conduction part is a Hall element, and is set on the conduction sounding elastic arm 331 magnet. The sounding elastic arm 331 is driven by the gimbal 1 to control the distance between the magnet and the Hall element, so as to realize the on and off functions of the switch. For the specific working principle, please refer to the following prior art: application number: 201520868417.X, patent name: a keyboard switch assembly.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model. Therefore, the same or similar technical features as the above-mentioned embodiments of the present utility model are adopted, and other structures obtained are all within the scope of protection of the present invention.

Claims

A gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch is characterized in that it comprises a gimbal and a conduction sounding assembly triggered by the gimbal to conduct conduction and sound, wherein the conduction sounding assembly It includes an elastic body and at least one conducting portion. The elastic body has a conducting sounding elastic arm extending toward the top of the conducting portion, and the conducting sounding elastic arm is triggered by the gimbal.
The gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch according to claim 1, wherein the conduction sounding assembly comprises two conduction parts, which are a first conduction part and a second conduction part respectively. A conducting portion, the first conducting portion is in contact with the elastic body, and the conducting sounding elastic arm extends above the second conducting portion.
The gimbal trigger single-arm conduction sounding mechanism applied to a keyboard switch according to claim 2, wherein the elastic body is a torsion spring.
The gimbal trigger single-arm conduction sounding mechanism applied to a keyboard switch according to claim 3, wherein the material of the torsion spring is copper.
The gimbal trigger single-arm conduction sounding mechanism applied to a keyboard switch according to claim 4, wherein the material of the torsion spring is phosphor bronze.
The gimbal trigger single-arm conduction sounding mechanism applied to a keyboard switch according to claim 3, wherein the conduction sounding assembly is installed in a mounting seat, and a supply guide is formed on the lower end surface of the mounting seat A movable groove through which the sounding elastic arm bounces, a mounting shaft for installing the main body of the torsion spring is protruded downward in the movable groove, and a mounting shaft for exposing the end of the conducting sounding elastic arm is provided on the mounting seat. Open your mouth.
The gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch according to claim 6, wherein a guiding slope is formed on the inner wall of the movable slot close to the conduction sounding elastic arm.
The gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch according to claim 6, wherein the first conduction part and the second conduction part are both conductive sheets, and the conductive sheets are disposed on the The lower end of the movable slot is fastened on the mounting seat, and the conductive sheet is electrically connected to the PCB board.
The gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch according to any one of claims 1 to 8, wherein a gimbal is formed on the gimbal to act on the end of the conduction sounding elastic arm. A lever.
The gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch according to claim 9, wherein a limiter for limiting the end of the conduction sounding elastic arm is formed on one side of the pressure rod. A limit hook.
The gimbal-triggered single-arm conduction sounding mechanism applied to a keyboard switch according to claim 9, wherein an inclined surface is formed on the pressing rod.
The gimbal trigger single-arm conduction sounding mechanism applied to a keyboard switch according to claim 9, wherein the gimbal comprises a balance rod A, a balance rod B, and a balance rod A and a balance rod connected to the balance rod A and the balance rod. A return tension spring between the rods B, wherein the compression rod is arranged on the balance rod A or the balance rod B.