WO2023093903A1

WO2023093903A1 - Rotary switching type voiced and silent mechanism for key switch

Info

Publication number: WO2023093903A1
Application number: PCT/CN2022/134966
Authority: WO
Inventors: 吴福喜; 胡远锋
Original assignee: 东莞市凯华电子有限公司
Priority date: 2021-11-29
Filing date: 2022-11-29
Publication date: 2023-06-01
Also published as: TWM643657U; CN116190144A

Abstract

A rotary switching type voiced and silent mechanism for a key switch, comprising a base (1), a press member (2) movably provided on the base (1), a sliding member (3) movably connected to the press member (2), and an elastic movable contact piece (4) provided on the side edge of the sliding member (3). A rotary switching member (5) extending to the side edge of the sliding member (3) is rotatably provided on the press member (2), and a linkage rod (51) capable of synchronously linking the sliding member (3) and the press member (2) is formed on the rotary switching member (5). The linkage rod (51) of the rotary switching member (5) rotates to implement switching of the sliding member (3) and the press member (2) between synchronous linkage and release of synchronous linkage, such that switching between voiced pressing and silent pressing is implemented, different requirements of users are met, and switching operation is convenient.

Description

A Rotary Switching Soundless and Soundless Mechanism for Key Switches

technical field

The invention relates to the field of key switches, in particular to a rotary switching soundless and silent mechanism for key switches.

Background technique

At present, the key switches on the market are classified according to sound and silence, and can be divided into sound key switches and silent key switches. Sound key switches can allow users to obtain better feel and sound. It is relatively noisy; the silent key switch does not emit sound, which can meet the needs of some users for silent pressing, but the feel of the silent key switch is poor. However, the existing key switch can only realize the function of sound or silence, and cannot freely switch between sound and silence according to the user's needs, which brings inconvenience to the use of the user, cannot meet the different needs of the user at the same time, and the user experience is not good.

Contents of the invention

In view of the above disadvantages, the object of the present invention is to provide a rotary switching soundless and silent mechanism for key switches, which can realize switching between pressing with sound and pressing without sound, meeting different needs of users, and switching operation is convenient.

The technical scheme that the present invention adopts for achieving the above object is:

A rotary switchable soundless and silent mechanism for key switches, comprising a base, a pressing member movably arranged on the base, a sliding member movably connected to the pressing member, and a sliding member arranged on the side of the sliding member The elastic movable contact piece is characterized in that a rotary switching piece extending to the side of the sliding piece is rotated on the pressing piece. A linkage lever, by rotating the linkage lever of the rotary switching element, the sliding element and the pressing element can be switched between synchronous linkage and desynchronized linkage, thereby realizing the switching between pressing with sound and pressing without sound.

As a further improvement of the present invention, the rotary switch includes an installation shaft installed on the pressing member, a rotating head connected to the upper end of the installation shaft and exposed outside the pressing member, and the connecting head connected to the lower end of the installation shaft. A moving rod, wherein the connecting rod includes a support shaft connected to the lower end of the installation shaft, and a hook connected to the lower end of the support shaft and used to hook the sliding part.

As a further improvement of the present invention, the support shaft is mainly composed of a transverse action part connected to the lower end of the installation shaft, and a longitudinal support part connected between the transverse action part and the hook, wherein the pressing part is provided with There is a limiting protrusion for limiting the lateral action part.

As a further improvement of the present invention, a relief groove for swinging the lateral action part is formed on the pressing member, and the limiting protrusion is formed in the relief groove.

As a further improvement of the present invention, both the installation shaft and the linkage rod are elastic members.

As a further improvement of the present invention, at least one active elastic arm is formed on the side of the elastic moving contact piece close to the sliding piece, and an active elastic arm is formed on the side of the sliding piece close to the elastic moving contact piece. a corresponding at least one protrusion.

As a further improvement of the present invention, at least one sliding hook groove is formed on the sliding member, and at least one sliding hook arm hooked into the sliding hook groove is formed on the lower part of the pressing member.

As a further improvement of the present invention, a positioning insertion shaft is extended downward from the lower part of the pressing member, and the sliding hook arm is formed outside the positioning insertion shaft; a positioning insertion shaft and a sliding hook arm are formed on the sliding member A central hole for active insertion.

As a further improvement of the present invention, a positioning column is formed on the base, and a positioning socket is formed in the positioning column, and the positioning insertion shaft is movably inserted into the positioning socket; between the pressing piece and the base A return spring is provided, the upper end of the return spring is sleeved on the periphery of the positioning insertion shaft, and the lower end of the return spring is sleeved on the periphery of the positioning column.

As a further improvement of the present invention, at least one driving projection is formed on the side of the pressing member, and at least one driving slot for engaging the driving projection is formed on the sliding member.

As a further improvement of the present invention, a guide projection is respectively formed on at least two opposite outer sides of the slider, and a guide slide for the guide projection to be embedded is respectively formed on two opposite inner walls of the base. groove.

The beneficial effects of the present invention are: by adding a rotating switching piece with a linkage rod between the sliding piece and the pressing piece, the sliding piece and the pressing piece can be switched between synchronous linkage and synchronous linkage release, thereby realizing pressing with sound Switching with pressing without sound can meet the different needs of users, and the switching operation is convenient.

The foregoing is an overview of the technical solution of the invention, and the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is an explosion diagram of the present invention;

Fig. 2 is a schematic structural view of the combination of the sliding part and the pressing part in the present invention;

Fig. 3 is a structural schematic diagram of a rotary switch in the present invention;

Fig. 4 is a schematic structural diagram of the combination of the sliding member and the elastic movable contact piece in the present invention;

Fig. 5 is a partial structural schematic diagram of the present invention;

Fig. 6 is a schematic diagram of the external structure of the key switch in the present invention.

Detailed ways

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

Please refer to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of rotary switching soundless and silent mechanism for key switch, including a base 1, a pressing member 2 movably arranged on the base 1, and a pressing member 2 movably connected to the pressing A sliding part 3 of the part 2 and an elastic movable contact piece 4 arranged on the side of the sliding part 3 are rotated on the pressing part 2 and a rotary switching part 5 extending to the side of the sliding part 3 is arranged, A linkage rod 51 that can synchronously link the slider 3 and the pressing member 2 is formed on the rotary switching member 5. By rotating the linkage rod 51 of the rotating switching member 5, the sliding member 3 and the pressing member 2 Switch between synchronous linkage and desynchronized linkage, so as to realize the switching between pressing with sound and pressing without sound.

By rotating the rotary switch 5 , the linkage rod 51 of the rotary switch 5 can be switched between synchronously linking the sliding piece 3 with the pressing piece 2 and desynchronizing between the sliding piece 3 and the pressing piece 2 . Specifically, when the linkage rod 51 synchronizes the sliding part 3 and the pressing part 2, the pressing part 2 moves up and down, and there will be no relative movement between the sliding part 3 and the pressing part 2, and the sliding part 3 will not knock. Hit the pressing part 2 to make a sound, to achieve the effect of pressing silently; when the linkage rod 51 releases the synchronous linkage between the sliding part 3 and the pressing part 2, the pressing part 2 moves up and down, and relative motion occurs between the sliding part 3 and the pressing part 2, Then the sliding part 3 hits the pressing part 2 to make a sound, so as to achieve the sound effect of pressing. Thus, since the rotary switching member 5 with the interlocking rod 51 is added between the sliding member 3 and the pressing member 2, the sliding member 3 and the pressing member 2 can be switched between synchronous interlocking and desynchronized interlocking, thereby Realize switching between pressing with sound and pressing without sound to meet different needs of users, and the switching operation is convenient.

Regardless of whether the sliding part 3 and the pressing part 2 are in the synchronous linkage state or released from the synchronous linkage state, the up and down movement of the pressing part 2 will drive the sliding part 3 to move up and down, but there is a problem of synchronization.

When the sliding part 3 is driven upward by the pressing part 2, the sliding part 3 will touch the elastic movable contact piece 4 on the side, as shown in FIG. 4 and FIG. 5 . When the sliding part 3 and the pressing part 2 are in the state of disengaging synchronous linkage, the sliding part 3 is moved up by the pressing part 2, and the sliding part 3 encounters the elastic moving contact piece 4, and exerts an outward force on the elastic moving contact piece 4. The active force makes the elastic moving contact piece 4 elastically deform; then, at the moment when the pressing piece 2 drives the sliding piece 3 to move up synchronously, the elastic restoring force of the elastic moving contact piece 4 acts on the sliding piece 3, so that the sliding piece 3 With an upward momentary force, the slider 3 moves upward relative to the pressing member 2, so that the sliding member 3 hits the pressing member 2 to make a sound, achieving the purpose of pressing and making a sound. Correspondingly, when the sliding part 3 and the pressing part 2 are in the state of synchronous interlocking movement, since there will be no relative movement between the two, even if the elastic movable contact piece 4 exerts an instantaneous force on the sliding part 3, it will not Will tap to make sound.

In this embodiment, as shown in FIG. 2 and FIG. 3 , the rotary switching member 5 includes a mounting shaft 52 mounted on the pressing member 2 , a mounting shaft 52 connected to the upper end of the mounting shaft 52 and exposed outside the pressing member 2 . Turning head 53, and described linkage rod 51 that is connected to the lower end of mounting shaft 52, wherein, this linkage rod 51 includes a support shaft 511 that is connected to the lower end of mounting shaft 52, and is connected to the lower end of support shaft 511 and is used to hook Hold a hook 512 of the slider 3 . When it is necessary to switch between pressing with sound and pressing without sound, the rotating head 53 can be manually rotated, specifically, it can be switched by rotating 90°. When the supporting shaft 511 of the linkage rod 51 is supported between the pressing member 2 and the sliding member 3, as shown in FIG. move down synchronously; and when the pressing part 2 moves up, due to the existence of the hook 512, the sliding part 3 will move up synchronously, the two will not move relative to each other, and the silent pressing function will be realized. And when the rotating head 53 is manually rotated, the supporting shaft 511 of the linkage rod 51 is turned away from between the pressing piece 2 and the sliding piece 3, and the grab 512 is turned away from the sliding piece 3, then the sliding piece 3 and the pressing piece 2 are synchronized. The interlocking state is converted to the asynchronous interlocking state, and the up and down movement of the pressing part 2 will drive the sliding part 3 to move up and down, but the movement of the two is not synchronous, and the pressing sound function can be realized.

Specifically, the support shaft 511 is mainly composed of a transverse action portion 5111 connected to the lower end of the installation shaft 52, and a longitudinal support portion 5112 connected between the transverse action portion 5111 and the hook 512, wherein the pressing member 2 is provided with a limiting protrusion 20 for limiting the lateral action portion 5111. The positioning of the lateral acting part 5111 by the setting of the limiting protrusion 20 can effectively prevent the phenomenon that the rotary switching member 5 rotates even when no force is applied, so that the switching action of pressing with sound and pressing without sound is more accurate . And when rotating the rotary switching member 5 manually, as long as an active force is applied to the rotary head 53, the lateral action part 5111 acts on the limiting protrusion 20 due to the rotation, and can rotate outwards beyond the limiting protrusion 20, Realize the rotation switching function.

When installing the specific structure, as shown in FIG. 2 , a relief groove 21 for swinging the lateral acting portion 5111 is formed on the pressing member 2 , and the limiting protrusion 20 is formed in the relief groove 21 . The relief slot 21 provides a relief space for the rotation of the lateral acting portion 5111 .

Certainly, by increasing the frictional force on the contact surface between the mounting shaft 52 and the pressing member 2, the rotary switching member 5 can only be rotated by forceful rotation. When no force is applied, the rotary switching member 5 will not rotate.

In this embodiment, both the installation shaft 52 and the linkage rod 51 are elastic members. Specifically, the elastic member can be a circlip. The elastic member has elastic characteristics, which is convenient for matching with the position-limiting protrusion 20, and is convenient for rotating operation while realizing the position-limiting function.

As for the structure of the slider 3 and the elastic movable contact piece 4, as shown in FIG. 4 and FIG. 5, at least one active elastic arm 41 is formed on the side of the elastic movable contact piece 4 close to the slider 3 in this embodiment, At least one protruding portion 31 corresponding to the active elastic arm 41 is formed on the side of the sliding member 3 close to the elastic movable contact piece 4 . Preferably, there are two active elastic arms 41 and two protrusions 31 . When the sliding part 3 moves up and down along with the pressing part 2, the sliding part 3 precisely acts on the elastic arm 41, so that the movement occurs more precisely, which is beneficial to the realization of the sounding function.

Regarding the connection relationship between the sliding part 3 and the pressing part 2, in this embodiment, at least one sliding hook groove 32 is formed on the sliding part 3, and at least one sliding hook groove 32 hooked into the sliding hook groove 32 is formed on the lower part of the pressing part 2. Slide hook arm 22. Since the pressing piece 2 hooks into the sliding hook groove 32 through the sliding hook arm 22 to realize the connection with the sliding piece 3, when there is no function of the rotary switching piece 5, when the pressing piece 2 is just pressed down, the pressing piece 2 moves down, Make the sliding hook arm 22 slide down along the sliding hook groove 32, and the sliding part 3 does not move down. When the pressing part 2 moves down to the upper part and contacts with the upper end surface of the sliding part 3, it will drive the sliding part 3 to move down together. When the pressing part 2 just moves up, the sliding hook arm 22 slides up along the sliding hook groove 32, but the sliding part 3 does not move up. , will drive the slider 3 to move up together. Through the above process, the asynchronous interlocking action of the sliding part 3 and the pressing part 2 is realized, so as to match with the elastic movable contact piece 4 and realize the function of the sliding part 3 colliding with the pressing part 2 to produce sound.

In this embodiment, as shown in FIG. 2 , a positioning insertion shaft 23 is extended downwards at the lower part of the pressing member 2 , and the sliding hook arm 22 is formed outside the positioning insertion shaft 23 ; on the sliding member 3 A central hole 33 is formed for movably inserting the positioning insertion shaft 23 and the sliding hook arm 22 , as shown in FIG. 4 . At the same time, as shown in Figure 1, a positioning column 11 is formed on the base 1, and a positioning socket 111 is formed in the positioning column 11, and the positioning insertion shaft 23 is movably inserted into the positioning socket 111; A return spring 6 is arranged between the pressing member 2 and the base 1 , the upper end of the return spring 6 is sleeved on the periphery of the positioning insert shaft 111 , and the lower end of the return spring 6 is sleeved on the periphery of the positioning post 11 . When the pressing member 2 is pressed and moves down, the return spring 6 is compressed, and when the pressing on the pressing member 2 is released, the elastic restoring force of the return spring 6 drives the pressing member 2 to move up and reset.

In order to facilitate the downward movement of the sliding part 3 driven by the pressing part 2, as shown in Figure 2, at least one driving projection 24 is formed on the side of the pressing part 2 in this embodiment, and a driving bump 24 is formed on the sliding part 3 for driving. At least one driving slot 34 is inserted into the protruding block 24 . When the pressing part 2 moves down relative to the sliding part 3 until the driving protrusion 24 snaps into the driving slot 34, the sliding part 3 can be driven to move down, and the driving protrusion 24 is matched with the driving slot 34, which is beneficial to the pressing part. 2 drives the sliding member 3 to move vertically downward steadily.

In order for the slider 3 to move up and down smoothly in the base 1 , in this embodiment, a guide projection 35 is respectively formed on at least two opposite outer sides of the slider 3 , and a guide protrusion 35 is formed on the opposite inner sides of the base 1 . A guide chute 12 for inserting the guide protrusion 35 is respectively formed on the wall.

When the switchable soundless and soundless mechanism provided in this embodiment is applied to a key switch, it is sufficient to add an upper cover 7 to the base 1 , as shown in FIG. 6 . For the conduction structure of the key switch, the conduction structure of the moving and static plates in the existing key switch can be adopted, and the elastic moving contact piece 4 can be used as a moving piece, as shown in Figure 5, the elastic moving contact piece 4 is combined with the static piece 8 Form the conduction structure of the dynamic and static plates.

The above are only preferred embodiments of the present invention, and are not intended to limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above-mentioned embodiments of the present invention are included in the present invention. within the scope of protection.

Claims

A rotary switchable soundless and silent mechanism for key switches, comprising a base, a pressing member movably arranged on the base, a sliding member movably connected to the pressing member, and a sliding member arranged on the side of the sliding member The elastic movable contact piece is characterized in that a rotary switching piece extending to the side of the sliding piece is rotated on the pressing piece. A linkage lever, by rotating the linkage lever of the rotary switching element, the sliding element and the pressing element can be switched between synchronous linkage and desynchronized linkage, thereby realizing the switching between pressing with sound and pressing without sound.
According to claim 1, the rotary switching type soundless and silent mechanism for key switch is characterized in that, the rotary switching part includes a mounting shaft installed on the pressing part, connected to the upper end of the mounting shaft and exposed to the pressing part A rotating head outside, and the linkage rod connected to the lower end of the installation shaft, wherein the linkage rod includes a support shaft connected to the lower end of the installation shaft, and a support shaft connected to the lower end of the support shaft and used to hook the slider a hook.
According to claim 2, the rotary switchable soundless and silent mechanism for key switch is characterized in that, the support shaft is mainly composed of a lateral action part connected to the lower end of the installation shaft, and a connection between the lateral action part and the hook. There is a longitudinal supporting part between them, wherein, a limiting protrusion for limiting the lateral acting part is arranged on the pressing part.
According to claim 3, the rotary switchable soundless and silent mechanism for key switch is characterized in that, a relief groove for the swing of the lateral acting part is formed on the pressing piece, and the limiting protrusion is formed on the Give way to the slot.
According to claim 3, the rotary switchable soundless and silent mechanism for key switch is characterized in that, both the installation shaft and the linkage rod are elastic parts.
According to any one of claims 1 to 5, the rotary switching soundless and silent mechanism for key switches is characterized in that at least one active elastic arm is formed on the side of the elastic movable contact piece close to the slider, At least one protrusion corresponding to the active elastic arm is formed on the side of the sliding member close to the elastic movable contact piece.
According to any one of claims 1 to 5, the rotary switchable soundless and silent mechanism for key switches is characterized in that at least one sliding hook groove is formed on the sliding part, and a sliding hook groove is formed on the lower part of the pressing part. At least one sliding hook arm hooked into the sliding hook groove.
According to claim 7, the rotary switching soundless and silent mechanism for key switch is characterized in that, a positioning insertion shaft extends downward from the lower part of the pressing member, and the sliding hook arm is formed on the outside of the positioning insertion shaft; A central hole is formed on the sliding part for the movably inserted positioning insertion shaft and the sliding hook arm.
According to claim 8, the rotary switching soundless and silent mechanism for key switch is characterized in that, a positioning column is formed on the base, and a positioning jack is formed in the positioning column, and the positioning insertion shaft It is inserted into the positioning socket flexibly; a return spring is arranged between the pressing part and the base, the upper end of the return spring is sleeved on the periphery of the positioning insertion shaft, and the lower end of the return spring is sleeved on the periphery of the positioning column.
According to any one of claims 1 to 5, the rotary switching soundless and silent mechanism for key switches is characterized in that at least one driving projection is formed on the side of the pressing member, and on the sliding member At least one drive slot for the drive projection to be clamped is formed.
According to any one of claims 1 to 5, the rotary switchable soundless and silent mechanism for key switches is characterized in that a guide protrusion is respectively formed on at least two opposite outer sides of the sliding member, and the A guiding chute into which the guiding projection is embedded is formed on the opposite inner sidewalls of the base.