WO2023155829A1

WO2023155829A1 - Switching-type voiced/unvoiced mechanism for microswitch

Info

Publication number: WO2023155829A1
Application number: PCT/CN2023/076396
Authority: WO
Inventors: 吴福喜; 黄云
Original assignee: 东莞市凯华电子有限公司
Priority date: 2022-01-27
Filing date: 2023-02-16
Publication date: 2023-08-24
Also published as: CN217061862U

Abstract

Disclosed in the present utility model is a switching-type voiced/unvoiced mechanism for a microswitch, comprising a sound production knocking block, a toggle-type switching assembly located on a side edge of the sound production knocking block, an upper soft part connected to the toggle-type switching assembly, and a lower soft part connected to the toggle-type switching assembly and located below the upper soft part. According to the switching-type voiced/unvoiced mechanism for a microswitch provided by the present utility model, free switching between a voiced function and an unvoiced function can be realized, and the effect before and after switching is obvious, so that a user can freely and flexibly perform switching between a voiced state and an unvoiced state according to his/her own use requirements. The mechanism is simple in operations and high in product flexibility, meets use requirements of users, and provides great convenience for the use of users.

Description

A Switchable Sound and Silent Mechanism for Micro Switch

technical field

The utility model relates to the field of micro switches, in particular to a switching type soundless and soundless mechanism for micro switches.

Background technique

Micro switches are divided into audible micro switches and silent micro switches according to the classification of sound and silence. The sound micro switch can give users a better feel, but the sound it makes will make it noisy in certain occasions; silent micro switches The manual switch does not make a sound, which can meet the needs of some users for silent pressing, but the silent micro switch has a poor feel.

In order to meet different needs, micro switches that can switch between sound and silence have appeared on the market. However, in this kind of micro switch, due to the unreasonable structural design of the switching mechanism, the effect before and after switching between sound and silence is not obvious, the effect is not good, and the user experience effect is not good.

Utility model content

In view of the above deficiencies, the purpose of this utility model is to provide a switchable soundless and soundless mechanism for micro switches, which can realize free switching between sound and soundless functions, and the effect before and after switching is obvious, and users can freely and flexibly according to their own needs. Switch between sound and silent state, simple operation, high product flexibility, meet user needs, and bring great convenience to users.

The technical scheme that the utility model adopts for achieving the above object is:

A switchable soundless and silent mechanism for a micro switch, characterized in that it includes a sounding knocking block, a toggle switching component located on the side of the sounding knocking block, connected to one of the toggle switching components The soft part, and the lower soft part connected to the toggle switching component and located below the upper soft part.

As a further improvement of the present utility model, the toggle switching assembly includes a rotating mounting base and a toggle handle connected to the rotating mounting base, wherein an upper connecting arm and an upper connecting arm are respectively arranged on the rotating mounting base. For the lower connecting arm below the connecting arm, the upper flexible part is arranged at the lower end of the upper connecting arm, and the lower flexible part is arranged at the upper end of the lower connecting arm.

As a further improvement of the utility model, the upper soft part and the lower soft part are both silica gel.

As a further improvement of the present utility model, a limiting shrapnel is provided on one side of the lower part of the rotating mounting seat, and a limiting protrusion is protruded on the side of the limiting elastic sheet close to the rotating mounting seat. One side is formed with two position-limiting slots matching the position-limiting protrusions.

As a further improvement of the utility model, the rotating mounting seat and the limit spring are respectively arranged on a base, and a mounting groove for installing the lower part of the rotating mounting seat is formed on the base, and a mounting groove is formed on one side of the mounting groove There is a limit card slot for inserting the limit elastic piece, a central rotating shaft is arranged on the installation groove, and the rotating mounting base is rotatably sleeved on the central rotating shaft.

As a further improvement of the present utility model, a side limit opening is formed on the sounding knock block, an upper percussion sound-generating part is formed at the upper end of the side limit opening, and a lower knock is formed at the lower end of the side limit opening. Hit the part.

As a further improvement of the present utility model, the distance between the upper percussion sounding part and the lower percussion sounding part is greater than the distance between the upper soft part and the lower soft part.

As a further improvement of the utility model, the sound-generating knocking block is arranged on the base through a connection terminal.

The beneficial effect of the utility model is: through the special structural design of the switchable soundless and silent mechanism, the upper soft part and the lower soft part can be adjusted between close to the elastic sheet and away from the elastic sheet by operating the toggle switch assembly Switch to achieve the change of the knocking object when the elastic piece rebounds. When the elastic piece rebounds, the sound-generating knock block can make a sound, achieving the purpose of pressing sound; when the elastic piece rebounds, hit the upper soft part and The lower soft part can achieve a mute effect and achieve the purpose of silent pressing, so as to realize the free switching between sound and silence, and the effect before and after switching is obvious. Therefore, users can freely and flexibly switch between the sound state and the silent state according to their own needs. The operation is simple, the product has high flexibility, meets the needs of users, and brings great convenience to users.

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

Description of drawings

Fig. 1 is the internal structure schematic diagram of the micro switch being in sound state among the utility model;

Fig. 2 is a schematic diagram of the external structure of the utility model;

Fig. 3 is the structural representation of elastic assembly in the utility model;

Fig. 4 is a structural schematic diagram of the combination of the toggle switch assembly, the upper soft part, the lower soft part and the limit elastic piece in the utility model;

Fig. 5 is the structural schematic diagram of sounding percussion block in the utility model;

Fig. 6 is a schematic diagram of the internal structure of the micro switch in a silent state in the present invention.

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the predetermined purpose, the specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Please refer to Fig. 1, Fig. 4 and Fig. 6. The embodiment of the present utility model provides a switchable soundless and silent mechanism 6 for a micro switch, which includes a sounding knocking block 61 and a sounding knocking block 61 side. The toggle switching component 62 , an upper flexible portion 63 connected to the toggle switching component 62 , and a lower flexible portion 64 connected to the toggle switching component 62 and located below the upper flexible portion 63 .

When it is specifically applied to a micro switch, the switchable soundless mechanism 6 of this embodiment is used in conjunction with the elastic piece 531 (reed) in the micro switch. Specifically, when the elastic piece 531 moves up and down and hits the sounding knocking block At 61 o'clock, the sound is produced to realize the sound effect; when the elastic sheet 531 moves up and down and hits the upper soft part 63 and the lower soft part 64, the sound is silenced by the upper soft part 63 and the lower soft part 64 to realize the soundless effect.

Specifically, the upper soft part 63 and the lower soft part 64 can be driven by the toggle switch assembly 62 to move, when the upper soft part 63 moves above the elastic sheet 531 and the lower soft part 64 moves below the elastic sheet 531 , as shown in Figure 6, the up and down movement of the elastic piece 531 directly contacts the upper soft part 63 and the lower soft part 64, and the upper soft part 63 and the lower soft part 64 are used to eliminate the sound, and the sound is not knocked. Hit the block 61, so as to realize the silent function of pressing; when the upper soft part 63 moves to the top of the elastic sheet 531, and the lower soft part 64 moves to the bottom of the elastic sheet 531, as shown in Figure 1, the movement of the elastic sheet 531 up and down The sound is produced by directly contacting the sound-generating knocking block 61 without contacting the upper soft part 63 and the lower soft part 64 , thereby realizing the function of pressing with sound. Thus, free switching between pressing with sound and pressing without sound is realized.

In this embodiment, as shown in FIG. 1 , FIG. 2 , FIG. 4 and FIG. 6 , the micro switch includes a base 1 and a cover 2 disposed above the base 1 . The toggle switching assembly 62 includes a rotating mount 621 rotatably disposed on the upper cover 2 or the base 1 , and a dial handle 622 connected to the rotating mount 621 and extending to the outside of the upper cover 2 and the base 1 , Correspondingly, on the upper cover 2 or the base 1, there are provided The handle 622 passes through the opening 22 on one side of the toggle, as shown in FIG. 2 . An upper connecting arm 6211 and a lower connecting arm 6212 located below the upper connecting arm 6211 are respectively arranged on the rotating mount 621. The upper flexible part 63 is arranged at the lower end of the upper connecting arm 6211, and the lower flexible part 64 Set on the upper end of the lower connecting arm 6212. Specifically, the rotating mounting base 621 of this embodiment is rotatably disposed on the base 1 , and of course it can also be rotatably disposed on the upper cover 2 . By turning the dial 622, the rotating mounting base 621 rotates accordingly, thereby driving the upper flexible part 63 and the lower flexible part 64 to rotate, thereby realizing that the upper flexible part 63 and the lower flexible part 64 are close to the elastic sheet 531 and leave the elastic piece 531 to switch between to realize the free switching function of pressing with sound and pressing without sound.

In this embodiment, both the upper soft part 63 and the lower soft part 64 have softness, flexibility and elasticity, so that when the elastic sheet 531 acts on the upper soft part 63 and the lower soft part 64, it can play a role of noise reduction. The purpose is to achieve a silent effect. As for the material of the upper soft part 63 and the lower soft part 64, silica gel can be selected.

In order to produce a tactile feel, the base 1 is provided with a limiting elastic piece 65 located on the lower side of the rotating mounting seat 621 in this embodiment, and the limiting elastic piece 65 is protruded on the side close to the rotating mounting seat 621. There is a limiting protrusion 651 , and two limiting grooves 6213 matching the limiting protrusion 651 are formed on one side of the lower part of the rotating mount 621 . When the dial handle 622 is turned to drive the rotation mount 621 to rotate, the outer side of the rotation mount 621 acts on the limit projection 651 of the limit spring 65, and the limit protrusion 651 can be elastically deformed, so that the outside of the rotation mount 621 It can interact with the limit protrusion 651 to generate a toggle feeling. At the same time, after the dial is in place, the position-limiting projection 651 is inserted into the position-limiting groove 6213, which acts as a position-limiting, positioning, and preventing shaking, thereby improving the accuracy of switching between sound and silent pressing.

During specific installation, as shown in FIG. 6 , in this embodiment, a mounting groove 11 is formed on the base 1 for the lower part of the rotating mounting seat 621 to be installed, and a limiting elastic piece 65 is formed on one side of the mounting groove 11. A limit card slot 12 is embedded, and a central rotating shaft 13 is arranged on the installation slot 11 , and the rotating mounting base 621 is rotatably sleeved on the central rotating shaft 13 . The combination of the installation groove 11 , the limit card groove 12 and the central shaft 13 enables the rotation mounting seat 621 and the limit elastic piece 65 to be stably installed on the base 1 , which is beneficial to accurately play their roles.

In this embodiment, as shown in FIG. 1 and FIG. 5 , a side limiting opening 611 is formed on the sounding percussion block 61 , and an upper percussion sounding part 612 is formed on the upper end of the side limiting opening 611 , and in the The lower end of the side limiting opening 611 is formed with a knock sounding part 613; one end of the elastic piece 531 passes through the side limiting opening 611, and the upper knocking sound part 612 is located above one end of the elastic piece 531, and the lower knocking sound part 613 is located below one end of the elastic sheet 531 . Meanwhile, as shown in FIG. 1 and FIG. 5 , the sound-generating knocking block 61 is disposed on the base 1 through a connection terminal 610 .

When the elastic piece 531 moves up and down, it directly hits the upper percussion sound generating part 612 and the lower percussion sound generating part 613 to generate a sound.

In order to better realize the switching between pressing sound and silence, as shown in Figure 5 and Figure 6, the distance between the upper percussion sound part 612 and the lower percussion sound part 613 in this embodiment is greater than the upper soft part 63 The distance from the lower soft part 64. Thus, when the upper flexible part 63 and the lower flexible part 64 rotate up and down the elastic piece 531, the up and down movement of the elastic piece 531 directly acts on the upper flexible part 63 and the lower flexible part 64 without touching the upper flexible part 63 and the lower flexible part 64. The percussion sound generating part 612 and the lower percussion sound generating part 613, thereby realizing the pressing silent function.

In this embodiment, as shown in Figure 1 and Figure 2, the cover 2 in the micro switch is combined with the base 1 to form a housing cavity, a guide core 4 is arranged in the housing cavity, and the cover 2 is provided with an upper opening 21 for the upper end of the guide core 4 to pass through. As shown in FIG. The keycap passes through the upper opening 21 for pressing.

The micro switch of this embodiment also includes a conduction mechanism 5. Specifically, as shown in FIG. 1 and FIG. 3, the conduction mechanism 5 includes a first conduction terminal 51 and a The second conduction terminal 52, and an elastic component 53 arranged in the accommodating cavity, wherein the elastic component 53 includes the elastic piece 531 which is erected on the first conduction terminal 51 and is located below the guide core 4, upward An arched elastic piece 532 supporting the elastic piece 531, and a conductive contact piece 533 that is located above the second conductive terminal 52 and extends away from the side of the switchable soundless and silent mechanism 6 described below, the conductive contact piece 533 is connected to the first The point where the two conduction terminals 52 contact is a conduction contact point. By combining the elastic piece 531, the arched elastic piece 532 and the conductive contact piece 533 in the elastic component 53, while providing the pressing elastic restoring force, it also drives the conductive contact point to move up and down to realize the function of conduction and disconnection During the entire pressing process, each structure moves smoothly and accurately, and the conduction and disconnection functions have high precision.

Specifically, when the guide core 4 is not pressed, the elastic component 53 is in a natural state as a whole. At this time, the conduction contact piece 533 is separated from the second conduction terminal 52, and the first conduction terminal 51 and the second conduction terminal 51 are separated. The on terminal 52 is in the disconnected state, therefore, the micro switch is in the disconnected state.

When the guide core 4 is pressed down, the guide core 4 acts on the elastic piece 531 of the elastic assembly 53, and the elastic piece 531 is subjected to the downward force of the guide core 4 and the upward lifting force of the arched elastic piece 532, so that it is arched. The elastic sheet 532 is subjected to the downward force of the elastic sheet 531. Under the interaction force, the elastic sheet 531 elastically deforms downward, and presses down to arch the elastic sheet 532 to cause elastic deformation. At the same time, the elastic sheet 531 elastically deforms downward. The deformation will drive the conduction contact piece 533 to move down, so that the conduction contact piece 533 contacts the second conduction terminal 52, then the first conduction terminal 51 and the second conduction terminal 52 are in a conduction state, therefore, the micro switch is in the conduction state.

When the pressure on the guide core 4 is released, the elastic restoring force of the elastic piece 531 and the arched elastic piece 532 resets upwards, and drives the conduction contact piece 533 to move upward, so that the conduction contact piece 533 and the second conduction terminal 52 If separated, the first conduction terminal 51 and the second conduction terminal 52 return to the disconnected state, and therefore, the micro switch is in the disconnected state.

In this embodiment, as shown in FIG. 1 , there is a first connecting portion 511 and a second connecting portion 512 located above the base 1 on the first conducting terminal 51 , and the outside of the first connecting portion 511 is A first slot 5111 is defined on the side, and a second slot 5121 is defined on the outer side of the second connecting portion 512; a first opening 5311 through which the first connecting portion 511 passes is opened on the elastic piece 531 , and a second opening 5312 for the arched elastic piece 532 to pass through. The inner wall of the first opening 5311 of the elastic piece 531 is inserted into the first slot 5111, and the tail end of the arched elastic piece 532 is inserted into the second slot. In 5121, the head end of the arched elastic piece 532 supports the elastic piece 531 upward. Thus, the elastic piece 531 and the arched elastic piece 532 are integrally erected and limited on the first connecting portion 511 and the second connecting portion 512 of the first conducting terminal 51, so that when the guide core 4 is pressed, the elastic piece 531 and the arched The elastic piece 532 can accurately undergo elastic deformation, which is beneficial to improve the accuracy of the conduction and disconnection work.

In this embodiment, as shown in FIG. 3 , the arched elastic piece 532 , the conduction contact piece 533 and the elastic piece 531 are connected as one. Specifically, the arched elastic piece 532 is formed by arching upward from the inner wall of the second opening 5312 of the elastic piece 531 , and the conducting contact piece 533 is formed by extending downward from the inner wall of the second opening 5312 of the elastic piece 531 . The arched elastic piece 532 is formed by arching upwards, and the conductive contact piece 533 is formed by extending downward. When the elastic piece 531 moves up and down due to elastic deformation under pressure, the arched elastic piece 532 can elastically deform above the elastic piece 531 , and the conduction contact piece 533 is issued under the elastic piece 531 The moving action makes the arched elastic piece 532 and the conduction contact piece 533 not interfere with each other, and each plays a role.

In order to further avoid interference, the first end of the arched elastic piece 532 in this embodiment is connected integrally with the elastic piece 531 by two elastic strips 5321; between. Thus, the connecting end of the arched elastic piece 532 and the elastic piece 531, and the connecting end of the conductive contact piece 533 and the elastic piece 531 extend up and down separately, the structural design is reasonable, and the interference between each other is further avoided, thereby providing various The precision of the structural movements.

In order to better contact the conduction contact piece 533 with the second conduction terminal 52, as shown in FIG. 1 and FIG. The second conducting terminal 52 has an arched contact portion 520 on the upper surface of the base 1 , and the arched contact portion 520 is located directly below the movable contact 5330 . When the conduction contact piece 533 moves down, the movable contact 5330 can better and more directly contact the arched contact portion 520 to improve the accuracy of conduction.

The above are only preferred embodiments of the present utility model, and are not intended to limit the technical scope of the present utility model. Therefore, other structures obtained by adopting the same or similar technical characteristics as the above-mentioned embodiments of the present utility model can be obtained. Within the protection scope of the present utility model.

Claims

A switchable soundless and silent mechanism for a micro switch, characterized in that it includes a sounding knocking block, a toggle switching component located on the side of the sounding knocking block, connected to one of the toggle switching components The soft part, and the lower soft part connected to the toggle switching component and located below the upper soft part.
The switchable soundless and silent mechanism for micro switches according to claim 1, wherein the toggle switch assembly includes a rotating mounting base and a toggle handle connected to the rotating mounting base, wherein, in An upper connecting arm and a lower connecting arm located below the upper connecting arm are respectively arranged on the rotating mounting base, the upper flexible part is arranged at the lower end of the upper connecting arm, and the lower flexible part is arranged at the upper end of the lower connecting arm.
The switchable soundless and soundless mechanism for a micro switch according to claim 1, wherein the upper soft part and the lower soft part are both silica gel.
According to claim 2, the switchable soundless and silent mechanism for the micro switch is characterized in that, a limiting shrapnel is arranged on the lower side of the rotating mounting base, and the side of the limiting shrapnel close to the rotating mounting base A position-limiting protrusion is provided on the upper protrusion, and two position-limiting slots matching the position-limiting protrusion are formed on one side of the lower part of the rotating mount.
According to claim 4, the switchable soundless and silent mechanism for the micro switch is characterized in that, the rotating mounting seat and the limiting shrapnel are respectively arranged on a base, and there is formed on the base for rotating installation. A mounting groove installed on the lower part of the seat, on one side of the mounting groove is formed a limit card groove for inserting the limit spring, a central rotating shaft is arranged on the mounting groove, and the rotating mounting seat is rotatably sleeved on the central rotating shaft .
According to any one of claims 1 to 5, the switchable soundless and soundless mechanism for micro switches is characterized in that, a side limiting opening is formed on the sounding knocking block, and the upper end of the side limiting opening is An upper percussion sounding part is formed, and a lower percussion sounding part is formed at the lower end of the side limiting opening.
The switchable soundless and soundless mechanism for micro switch according to claim 6, characterized in that the distance between the upper percussion sound part and the lower percussion sound part is greater than the upper soft part and the lower soft part. distance between parts.
According to any one of claims 1 to 5, the switchable soundless and soundless mechanism for a micro switch is characterized in that, the sounding knocking block is arranged on the base through a connecting terminal.