CN216793511U

CN216793511U - Sounding key switch

Info

Publication number: CN216793511U
Application number: CN202123091098.0U
Authority: CN
Inventors: 吴福喜; 胡远锋
Original assignee: Dongguan Kaihua Electronics Co Ltd
Current assignee: Dongguan Kaihua Electronics Co Ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-21
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a sounding key switch, which comprises a base and a guide core arranged on the base, wherein at least one pressing lug is arranged on the guide core, a sounding assembly positioned on the side edge of the pressing lug is arranged on the base, the sounding assembly comprises a rotating push rod rotatably arranged on the base and a metal dome arranged on the base and positioned on the side edge of the rotating push rod, and the rotating push rod comprises a rotating shaft rotatably arranged on the base, at least one push block arranged on the rotating shaft and corresponding to the pressing lug, and a knocking arm arranged on the rotating shaft and facing the metal dome. The sounding key switch provided by the utility model can realize the function of sounding by pressing, and has the advantages of accurate knocking sounding action, crisp sound and good sounding effect. Meanwhile, the knocking sounding action and the conducting action occur simultaneously, namely, the synchronous effect of upper conduction and lower sounding is realized, so that the function of pressing sounding can be realized while the function of conducting and disconnecting the key switch is realized.

Description

Sounding key switch

Technical Field

The utility model relates to the field of key switches, in particular to a sounding key switch.

Background

At present, a plurality of key switches capable of generating sound by pressing appear on the market, and due to the unreasonable sound generating structure design, the key switches have inaccurate sound generating actions and poor sound generating effect.

Simultaneously, at key switch internally mounted's sound production subassembly and switch-on components alternate segregation, the problem of sound production time and switch-on time asynchronism easily appears, influences whole result of use, and user experience effect is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages, the present invention provides a sounding key switch, which can realize a function of sounding by pressing, and has the advantages of accurate tapping sounding action, crisp sound and good sounding effect. Meanwhile, the knocking sounding action and the conducting action occur simultaneously, namely, the synchronous effect of upper conduction and lower sounding is realized, so that the function of pressing sounding can be realized while the function of conducting and disconnecting the key switch is realized.

The technical scheme adopted by the utility model to achieve the aim is as follows:

the utility model provides a sounding key switch, includes a base, and set up one on the base and lead the core, be provided with at least one on this leads the core and press the lug, be provided with the subassembly of making a sound that is located to press the lug side on this base, a serial communication port, this sounding subassembly is including rotating a rotation push rod that sets up on the base, and set up on the base and be located a metal dome piece of rotation push rod side, this rotation push rod is including rotating a pivot that sets up on the base, set up in the pivot and corresponding to an at least ejector pad of pressing the lug, and set up in the pivot and towards a strike arm of metal dome piece.

As a further improvement of the utility model, a soft rubber cushion is arranged between the knocking arm and the snap dome.

As a further improvement of the utility model, two acting bulges are respectively formed on two sides of the soft rubber pad.

As a further improvement of the utility model, a positioning block is arranged on one side of the metal dome far away from the knocking arm, and a positioning bulge is arranged on one side of the positioning block facing the metal dome.

As a further improvement of the utility model, a supporting block for supporting the rotating shaft is formed on the base, a rotating clamping groove for the rotating shaft to be embedded and rotate is formed on the supporting block, an embedded groove for the snap dome to be embedded is formed on the base, and a movable groove which penetrates through the embedded groove and is used for the knocking arm to swing is formed on the supporting block.

As a further improvement of the utility model, a guide inclined plane is formed on the side surface of the pressing lug, which is close to the pushing block.

As a further improvement of the present invention, a positioning slot for the positioning block to be inserted is formed on the base.

As a further improvement of the present invention, a conduction assembly is disposed on the base, the conduction assembly includes a fixed plate and a movable plate respectively disposed on the base, a fixed contact is disposed on the fixed plate, a movable contact corresponding to the fixed contact is disposed on the movable plate, and a push arm acting on the movable plate is disposed on the rotating shaft.

As a further improvement of the utility model, the knocking arm extends to the lower part of the rotating shaft, and the pushing arm extends to the upper part of the rotating shaft.

As a further improvement of the utility model, the knocking arm and the pushing arm are connected into a whole to form a swinging piece.

As a further improvement of the utility model, the number of the push blocks is two, and the push blocks are respectively arranged at two sides of the swinging piece.

As a further improvement of the utility model, a return spring is arranged between the guide core and the base, an upper cover is arranged on the base, and the upper end of the guide core penetrates out of the upper cover for pressing.

The utility model has the beneficial effects that:

(1) through the sounding subassembly that constitutes by the rotation push rod that has special structural design and the metal dome piece combines together, can realize pressing the vocal function, strike the vocal action accurate, sound is crisp, and the vocal effect is good.

(2) Through the rotation push rod that has special structural design and the subassembly that switches on cooperatees, at rotation push rod's pivot pivoted in-process, strike arm and the swing action of catch arm emergence simultaneously, then strike the sound production action and switch on the subassembly and switch on the action and take place simultaneously, switch on promptly and send the sound synchronization effect down to when realizing key switch and switch off function, can also realize pressing the sound production function.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic view of a portion of the structure of the present invention;

FIG. 3 is a schematic structural view of a base according to the present invention;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is a schematic view of the structure of the rotary push rod of the present invention;

FIG. 6 is a schematic structural view of a soft rubber cushion according to the present invention;

FIG. 7 is another schematic view of a portion of the present invention;

fig. 8 is an external structural view of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purposes, the following detailed description of the embodiments of the present invention is provided with the accompanying drawings and the preferred embodiments.

Referring to fig. 1 and 2, an embodiment of the utility model provides a sounding key switch, which includes a base 1 and a guide core 2 disposed on the base 1, wherein the guide core 2 is provided with at least one pressing protrusion 21, the base 1 is provided with a sounding component 3 disposed on a side of the pressing protrusion 21, and the sounding component 3 includes a rotating push rod 31 rotatably disposed on the base 1 and a dome 32 disposed on the base 1 and on a side of the rotating push rod 31. Specifically, as shown in fig. 5, the rotating push rod 31 includes a rotating shaft 311 rotatably disposed on the base 1, at least one pushing block 312 disposed on the rotating shaft 311 and corresponding to the pressing protrusion 21, and a knocking arm 313 disposed on the rotating shaft 311 and facing the snap dome 32, wherein the pressing protrusion 21 of the guide core 2 moves down to act on the pushing block 312 of the rotating push rod 31, so as to drive the rotating shaft 311 to rotate, thereby driving the knocking arm 313 to swing toward the snap dome 32, and knocking the snap dome 32 to generate sound.

When the pressing guide core 2 moves downwards, the pressing bump 21 on the guide core 2 moves downwards to act on the push block 312 of the rotating push rod 31, and pushes the push block 312 outwards, as shown in fig. 2, the rotating shaft 311 rotates counterclockwise, and correspondingly, the rotation of the rotating shaft 311 drives the knocking arm 313 to swing towards the snap dome 32 until the snap dome 32 is knocked to generate sound, so that the pressing sound generating function is realized, and meanwhile, the snap dome 32 generates elastic deformation. When the pressing on the guide core 2 is released, the guide core 2 moves upwards to reset, the pressing lug 21 is separated from the push block 312 along with the upward movement, and the knocking arm 313 swings reversely under the action of the elastic restoring force of the snap dome 32 to drive the rotating shaft 311 to rotate clockwise to reset. Through the special structural design of the sounding component 3 consisting of the rotating push rod 31 and the snap dome 32, the pressing sounding function can be realized, the knocking action is accurate, and the sound is clear and crisp.

In the present embodiment, as shown in fig. 1, 2 and 4, a soft rubber pad 33 is disposed between the striking arm 313 and the snap dome 32. When the knocking arm 313 swings towards the snap dome 32, the knocking arm 313 acts on the snap dome 32 through the soft rubber pad 33, namely, the soft rubber pad 33 directly knocks the snap dome 32 instead of the knocking arm 313 directly knocking the snap dome 32, and as the soft rubber pad 33 has elasticity and softness, the service life of the snap dome 32 and the whole product can be prolonged while knocking and sounding.

Meanwhile, in order to make the knocking operation more accurate, as shown in fig. 4 and 6, the present embodiment forms an acting protrusion 331 on each side of the soft rubber pad 33. When the knocking action occurs, the knocking arm 313 directly acts on the action bulge 331 on one side, and the action bulge 331 on the other side directly acts on the snap dome 32, so that the action point is accurate, and the accuracy of the knocking action is improved.

In the present embodiment, as shown in fig. 1, fig. 2 and fig. 4, a positioning block 34 is disposed on a side of the snap dome 32 away from the knocking arm 313, and a positioning protrusion 341 is disposed on a side of the positioning block 34 facing the snap dome 32. A positioning engaging groove 13 into which the positioning block 34 is engaged is formed in the base 1. When the metal dome 32 is knocked, the metal dome 32 deforms, and the deformation amount of the metal dome 32 is controlled by the positioning block 34 with the positioning protrusion 341, namely, the stroke of the metal dome 32 is positioned, so that the accuracy of knocking action is improved.

As shown in fig. 2 and 3, in the present embodiment, a supporting block 11 for supporting the rotating shaft 311 is formed on the base 1, a rotating locking groove 111 for allowing the rotating shaft 311 to be inserted and rotated is formed on the supporting block 11, an insertion groove 12 for inserting the snap piece 32 is formed on the base 1, and a movable groove 112 for allowing the knocking arm 313 to swing is formed on the supporting block 11 and penetrates through the insertion groove 12. Specifically, the rotating shaft 311 of the present embodiment is cylindrical, and correspondingly, the rotating slot 111 is an arc-shaped slot matched with the rotating shaft. When the pressing protrusion 21 on the guide core 2 moves downward to push the pushing block 312 outward, the rotating shaft 311 rotates counterclockwise in the rotating slot 111, and at the same time, the knocking arm 313 is driven to swing toward the snap dome 32 through the movable slot 112, thereby knocking the snap dome 32. The special groove structure design on the base 1 is beneficial to the accurate action of the rotating push rod 31 and the snap dome 32 after installation.

In order to enable the pressing protrusion 21 to better act on the pushing block 312, as shown in fig. 2, a guiding inclined surface 211 is formed on a side surface of the pressing protrusion 21 close to the pushing block 312. Due to the existence of the guiding inclined plane 211 of the pressing lug 21, when the guide core 2 drives the pressing lug 21 to move downwards, the guiding inclined plane 211 can gradually push the push block 312 outwards, thereby realizing the purpose of applying stable acting force to the rotating shaft 311.

In the present embodiment, as shown in fig. 1 and fig. 7, a conducting assembly 4 is disposed on the base 1, and specifically, the conducting assembly 4 includes a static plate 41 and a moving plate 42 respectively disposed on the base 1, a static contact 411 is disposed on the static plate 41, a moving contact 421 corresponding to the static contact 411 is disposed on the moving plate 42, and a pushing arm 314 acting on the moving plate 42 is disposed on the rotating shaft 311. When the core 2 is in a static non-pressed state, the pushing arm 314 pushes the moving piece 42 outwards, so that the moving contact 421 of the moving piece 42 is separated from the fixed contact 411, and the conducting assembly 4 is disconnected, i.e. the key switch is in an off state. When the pressing core 2 moves downwards, the pressing bump 21 on the pressing core 2 moves downwards to act on the pushing block 312 of the rotating push rod 31, and pushes the pushing block 312 outwards, as shown in fig. 7, the rotating shaft 311 rotates counterclockwise, and correspondingly, the rotation of the rotating shaft 311 drives the knocking arm 313 to swing towards the snap dome 32 until the snap dome 32 is knocked to generate sound; meanwhile, the rotation of the rotating shaft 311 drives the pushing arm 314 to swing towards the guide core 2, so that the pushing arm 314 releases the outward acting force on the moving plate 42, the moving plate 42 is moved towards the stationary plate 41 due to the reset, the moving contact 421 is contacted with the stationary contact 411, and the conducting assembly 4 is conducted, that is, the key switch is in a conducting state. When the pressing on the guide core 2 is released, the guide core 2 moves upwards to reset, the pressing lug 21 is separated from the push block 312 along with the upward movement, the knocking arm 313 swings reversely under the action of the elastic restoring force of the snap dome 32 to drive the rotating shaft 311 to rotate clockwise to reset, the pushing arm 314 swings outwards to reset and acts on the moving plate 42 again, so that the moving contact 421 of the moving plate 42 is separated from the fixed contact 411, and the key switch is restored to the off state.

In the present embodiment, as shown in fig. 5, the knocking arm 313 extends below the rotating shaft 311, and the pushing arm 341 extends above the rotating shaft 311. Meanwhile, the striking arm 313 and the pushing arm 314 are integrally formed as a swinging member 310. In the process of rotating the rotating shaft 311, the swinging member 310 is driven to swing, that is, the knocking arm 313 and the pushing arm 314 swing at the same time, so that the knocking sounding action and the conducting action of the conducting component 4 occur at the same time, thereby realizing the conducting and disconnecting functions of the key switch and the pressing sounding function.

In this embodiment, in order to improve the balance of the rotation of the rotating push rod 31, the number of the push blocks 312 is two, and the push blocks are respectively disposed on both sides of the swinging member 310. Accordingly, the number of the pressing protrusions 21 is also two, and the pressing protrusions correspond to the pushing blocks 312 one to one. When the guide core 2 moves down, the pushing block 312 is acted by the pressing convex block 21 from two sides, so that the rotating push rod 31 rotates stably, and the rotating balance is improved.

In a specific key switch product, as shown in fig. 8, a return spring 5 is arranged between the guide core 2 and the base 1, and the return spring 5 provides an elastic restoring force for the upward movement and return of the guide core 2; meanwhile, an upper cover 6 is arranged on the base 1, and the upper end of the guide core 2 penetrates out of the upper cover 6 to be pressed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by using the same or similar technical features as the above-described embodiments of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a sounding key switch, includes a base, and set up one on the base and lead the core, be provided with at least one on this leads the core and press the lug, be provided with the subassembly of making a sound that is located to press the lug side on this base, a serial communication port, this sounding subassembly is including rotating a rotation push rod that sets up on the base, and set up on the base and be located a metal dome piece of rotation push rod side, this rotation push rod is including rotating a pivot that sets up on the base, set up in the pivot and corresponding to an at least ejector pad of pressing the lug, and set up in the pivot and towards a strike arm of metal dome piece.

2. The sounding key switch according to claim 1, wherein a soft rubber pad is provided between the striking arm and the snap dome.

3. The sounding key switch according to claim 2, wherein an action protrusion is formed on each of both sides of the soft rubber pad.

4. The sounding key switch according to claim 1, wherein a positioning block is disposed on a side of the snap piece away from the striking arm, and a positioning protrusion is disposed on a side of the positioning block facing the snap piece.

5. The sounding push-button switch according to claim 1, wherein a support block for supporting the rotary shaft is formed on the base, a rotary locking groove for allowing the rotary shaft to be inserted and rotated is formed on the support block, an insertion groove for inserting the snap dome is formed on the base, and a movable groove for allowing the knock arm to swing is formed on the support block and penetrates through the insertion groove.

6. The sounding key switch according to claim 1, wherein a guide slope is formed on a side surface of the pressing projection near the push block.

7. The sounding key switch according to claim 4, wherein a positioning slot is formed on the base for a positioning block to be inserted into.

8. The sounding key switch according to any of claims 1 to 7, wherein a conducting assembly is disposed on the base, the conducting assembly comprises a stationary plate and a moving plate respectively disposed on the base, a stationary contact is disposed on the stationary plate, a moving contact corresponding to the stationary contact is disposed on the moving plate, and a pushing arm acting on the moving plate is disposed on the rotating shaft.

9. The audible key switch of claim 8, wherein said striking arm extends below the pivot axis and said pusher arm extends above the pivot axis.

10. The audible key switch of claim 9, wherein said striking arm and said pushing arm are integrally formed as a pendulum.

11. The sounding key switch according to claim 10, wherein the number of the push blocks is two, and the push blocks are respectively disposed on both sides of the swinging member.

12. The sounding key switch according to any one of claims 1 to 7, wherein a return spring is disposed between the guide core and the base, an upper cover is disposed on the base, and an upper end of the guide core protrudes through the upper cover for pressing.