WO2019153998A1 - Key switch sounding on pressing - Google Patents

Abstract

Provided is a key switch sounding on pressing. The key switch comprises a base (1) and a cover (2) arranged above the base (1), wherein the cover (2) and the base (1) are jointed to form an accommodation cavity, and a guide core (3) and an elastic member (4) located below the guide core (3) are respectively arranged in the accommodation cavity. The key switch further comprises a sounding assembly (5) arranged in the accommodation cavity and located at a lower end of the guide core (3), wherein the sounding assembly (5) comprises a driving piece (51), a driven block (52) and a driven piece (53) connected between the driving piece (51) and the driven block (52), the driven block (52) is provided with at least one first knocking block (521), and at least one second knocking block (22) corresponding to the first knocking block (521) is provided in the accommodation cavity. The key switch fully utilizes the inner space thereof, is good to handle during the pressing of the key switch on the premise of keeping the key switch as small as possible, and realizes a press sounding function, thereby improving the user experience; in the whole process, the accuracy of an action and the structural stability are high, and a sounding effect is triggered sensitively and accurately.

Description

Push button for pressing sound Technical field

The invention relates to a push button switch, in particular to a push button switch for pressing sound.

Background technique

Many operations of electronic equipment require the use of a button switch as an input means. The quality of the key switch determines the experience of the input device, which requires the button switch to have a good feel and sound. Due to the limitation of the internal space of the switch, the existing thin-type key switch has relatively insufficient sound-emitting structure design, lacks a pressing feel, and cannot always have a pressing sound like a large button switch.

Summary of the invention

In view of the above-mentioned deficiencies, an object of the present invention is to provide a push button that presses and emits sound, and makes full use of the internal space, so that the key switch can have a good hand feeling during pressing, and realize a pressing sounding function under the premise that the key switch is as small as possible. To enhance the user experience, the whole process has high precision of movement, high structural stability, and the vocal effect is sensitive and precise.

The technical solution adopted by the present invention to achieve the above object is:

A push button for pressing a sound, comprising a base and a cover disposed above the base, the cover and the base are combined to form a receiving cavity, a guiding core is disposed in the receiving cavity, and is located An elastic member under the guiding core, further comprising a sounding component disposed in the accommodating cavity and located at a lower end of the guiding core, the sounding component comprising an active piece, a driven block, and the active piece and the slave a follower piece between the moving blocks, at least one first tapping block is disposed on the driven block, and at least one second tapping block corresponding to the first tapping block is disposed in the receiving cavity .

As a further improvement of the present invention, the first striking block is disposed on an upper surface of the driven block, and the second striking block is disposed on a lower end surface of the cover.

As a further improvement of the present invention, the active sheet is a metal elastic piece, and the active piece includes an active center piece and an active side piece respectively inclined downwardly disposed at two ends of the active center piece, wherein the active center piece is on the active center piece An active jack is defined, and a plug is disposed at an end of the active side panel.

As a further improvement of the present invention, the driven piece includes a driven center piece, and a driven side piece integrally formed at both ends of the driven center piece and inclined upwardly, wherein the driven side piece has a lower end An arcuate connecting block connected to the end of the driven center piece, wherein the driven center piece is provided with a driven upper jack directly below the driving jack, the driven side piece is inclined to the inner side, and in the driven The end of the side panel is provided with a socket for inserting the plug block, and at the same time, the end portion of the driven side panel is bent outward to form a bent position block.

As a further improvement of the present invention, the driven center piece is disposed on the upper end surface of the driven block, and a plurality of connecting jacks are formed on the driven center piece; and an insertion connection is protruded upwardly on the upper end surface of the driven block a plurality of connecting posts in the hole, and a plurality of limiting bumps extending to an edge of the driven center piece are disposed at an edge of the upper end surface of the driven block, and the driven block is disposed directly below the driven upper jack a driven lower jack; each of the two ends of the upper end surface of the driven block and below the curved connecting block has an inclined surface, and the inclined surface is inclined outward from the top to the bottom.

As a further improvement of the present invention, the lower end of the guiding core has a lower guiding block, and the lower end of the guiding core has a retaining notch at each side of the lower guiding block, and the active central piece is disposed at the lower end surface of the lower guiding block. a positioning post is disposed at a lower end of the lower guiding block, and at least one limiting protrusion is disposed on an outer side of the upper portion of the positioning post, and the positioning post is inserted into the active jack from top to bottom And the driven upper jack and the driven lower jack, and the active center piece of the active piece is located at the upper end surface of the limiting protrusion.

As a further improvement of the present invention, the elastic member is a spring sleeved on the periphery of the positioning post and located below the limiting protrusion.

As a further improvement of the present invention, a guiding post is protruded upwardly on the base, and a guiding slot for inserting the positioning post is recessed downwardly on the upper end surface of the guiding post, and is disposed on the inner wall of the guiding slot There is a support boss for supporting the lower end of the spring; and a movable slot for the movement of the sounding component is disposed on the base and at the periphery of the guide post.

As a further improvement of the present invention, the method further includes a mechanical conduction component that is inserted into the base, the mechanical conduction component includes a movable piece that is inserted into the base, and is inserted on the base and is located A static piece on the inner side of the piece is convexly provided on a side of the moving piece near the guiding core, and a pressing protrusion corresponding to the convex hull is disposed on the side of the guiding core.

As a further improvement of the present invention, a PCB board disposed on a lower end surface of the base and a photoelectric conduction component disposed on a lower end surface of the PCB, wherein the photoelectric conduction component includes an LED emission tube and a An LED receiving tube; a guiding post extension portion is disposed at a lower end surface of the base and at a lower end of the guiding post, and a light guiding hole communicating with the guiding slot is defined in the extending portion of the guiding post, and the LED transmitting tube is located One side of the light guiding hole, the LED receiving tube is located on the other side of the light guiding hole.

The invention has the beneficial effects that: by adding a sounding component formed by combining the active piece, the driven piece and the driven piece, and simultaneously adding a matching knocking block on the driven block and the cover, the guiding core When moving down, the active piece can be triggered to move the driven piece and the driven block as a whole, thereby causing the knocking block on the driven block to strike the knocking block on the cover to emit sound, thereby implementing the pressing sounding function, the whole process The movement accuracy is high, the structural stability is high, and the sound generation effect is sensitive and precise; at the same time, due to the combination of the active piece and the driven piece, the pressing feel is improved and the user experience is improved.

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

DRAWINGS

Figure 1 is an exploded view of the present invention;

Figure 2 is a schematic view of the overall structure of the present invention;

Figure 3 is a partial structural view of the present invention;

4 is a schematic structural view showing a combination of a guide core, an elastic member and a sound emitting component according to the present invention;

Figure 5 is a schematic structural view of the sound emitting component of the present invention;

6 is a schematic structural view of an active sheet of the present invention;

Figure 7 is a schematic structural view of a follower piece of the present invention;

Figure 8 is a schematic structural view of a driven block of the present invention;

9 is a schematic structural view showing a combination of a guide core, an elastic member and an active sheet according to the present invention;

Figure 10 is a schematic structural view of a guide core of the present invention;

Figure 11 is a cross-sectional view of the present invention in an unpressed state;

Figure 12 is a cross-sectional view showing the present invention in a pressed state;

Figure 13 is a schematic structural view of a susceptor of the present invention;

Figure 14 is a schematic structural view of a cover of the present invention;

Figure 15 is a schematic view showing the structure of a susceptor in combination with a photoelectric conduction module of the present invention.

Detailed ways

The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

Referring to FIG. 1 to FIG. 4 , an embodiment of the present invention provides a button switch for pressing a sound, comprising a base 1 and a cover 2 disposed above the base 1 , the cover 2 being combined with the base 2 to form a The accommodating cavity is respectively provided with a guiding core 3 and an elastic member 4 located under the guiding core 3, and an upper opening 21 for the upper end of the guiding core 3 to be opened is opened on the cover 2. The key switch of the embodiment further includes a sounding component 5 disposed in the accommodating cavity and located at the lower end of the guiding core 3. The sounding component 5 includes an active piece 51, a driven block 52, and is connected to the active piece 51 and driven. A follower piece 53 between the blocks 52 is provided with at least one first tapping block 521 on the driven block 52. As shown in FIG. 8, a first tapping block 521 is disposed in the receiving cavity. Corresponding at least one second tapping block 22.

In this embodiment, the specific position of the first tapping block 521 on the driven block 52 and the position of the second striking block 22 may be set according to specific needs, and the first tapping block 521 may be disposed on Any position on the driven block 52, and the position where the second knocking block 22 is disposed may be corresponding to the first tapping block 521, and the first knocking block 521 can be caused during the movement of the guiding core 3 up and down. The second tapping block 22 is struck to make a sound. In this embodiment, preferably, the first tapping block 521 is disposed on the upper surface of the driven block 52, and the number of the first tapping blocks 521 is four, which are respectively disposed on the upper surface of the driven block 52. At the corners, the second tapping block 22 is disposed on the lower end surface of the cover 2, and the number of the second tapping blocks 22 is four, which are respectively disposed above the first tapping block 521, as shown in FIG. 11 and FIG. As shown in Figure 14.

In the embodiment, the active sheet 51 is a metal dome. Specifically, as shown in FIG. 5 and FIG. 6 , the active sheet 51 includes an active center piece 511 and is disposed obliquely downwardly on the active center piece 511 . An active side panel 512 is disposed at the two ends, wherein an active jack 5111 is defined in the active center panel 511, and an insert block 5121 is disposed at an end of the active side panel 512. When the guiding core 3 is not pressed, the driving piece 51 is in a natural state, and the active side piece 512 at both ends of the active center piece 511 is inclined downward, so that the driving piece 51 is an arc-shaped body which is arched upward in the middle; and when the guiding core 3 is pressed When moving downward, the guiding core 3 exerts a force on the active center piece 511 and drives the active center piece 511 to move downward, so that the active side piece 512 at both ends of the active center piece 511 is lifted upward, and the active center piece 511 is actively activated at both ends. The side panel 512 is inclined upward so that the active sheet 51 has an arcuate body that is concave downward in the middle, as shown in FIG.

As shown in FIG. 5 and FIG. 7 , the driven piece 53 includes a driven center piece 531 and a driven side piece 532 integrally formed on both ends of the driven center piece 531 and inclined upward. The lower end of the driven side piece 532 has a curved connecting block 5321 connected to the end of the driven center piece 531, and a driven upper jack 5311 directly under the active jack 5111 is opened on the driven center piece 531. The driven side piece 532 is inclined to the inner side, and an insertion hole 5322 into which the insertion block 5121 is inserted is opened at the end of the driven side piece 532, and the end portion of the driven side piece 532 is bent outward to form a Bend the bit block 5323. The insertion block 5121 of the active sheet 51 is inserted into the insertion hole 5322 of the driven piece 53 to realize the connection between the active piece 51 and the driven piece 53. When the active side piece 512 of the active piece 51 is bounced upward, it will be driven. The follower piece 53 is moved up as a whole.

As shown in FIG. 5 and FIG. 8 , the driven center piece 531 is disposed on the upper end surface of the driven block 52 , and a plurality of connecting jacks 5312 are defined in the driven center piece 531 . The driven block 52 is disposed on the driven block 52 . A plurality of connecting posts 522 are inserted into the connecting insertion holes 5312, and a plurality of limiting protrusions 523 extending to the edge of the driven center piece 531 are disposed on the upper end edge of the driven block 52, and The movable block 52 is provided with a driven lower insertion hole 524 located directly below the driven upper insertion hole 5311. Meanwhile, an inclined surface 525 is respectively disposed at both ends of the upper end surface of the driven block 52 under the curved connecting block 5231. And the inclined surface 525 is inclined outward from the top to the bottom. In this embodiment, a plurality of connecting jacks 5312 on the driven center piece 531 are combined with a plurality of connecting posts 522 on the driven block 52, so that the driven piece 53 and the driven block 52 can be riveted together. That is, the driven piece 53 is fixed to the driven block 52. Of course, the fixed connection of the driven piece 53 and the driven block 52 can also be realized by another structure. Since the driven piece 53 is fixed on the driven block 52, when the active side piece 512 of the active piece 51 is bounced upward, the driven piece 53 is moved upward as a whole, and the driven block 52 moves upward, thereby prompting the slave block 52 to move upward. The first tapping block 521 on the moving block 52 strikes the second striking block 22 on the lower end surface of the cover 2 to emit a sound, thereby realizing the pressing sounding function.

As shown in FIG. 4, FIG. 9 and FIG. 10, the lower end of the guiding core 3 has a lower guiding block 31, and at each of the lower ends of the guiding core 3 and at the two sides of the lower guiding block 31, respectively, a receiving slot 32 is provided. The active center piece 511 is disposed on the lower end surface of the lower guiding block 31; a positioning insertion post 33 is disposed downwardly from the lower end of the lower guiding block 31, and at least one limiting convex is disposed on the outer outer side of the positioning insertion post 33. Starting from 331, the positioning post 33 is sequentially inserted into the active jack 5111, the driven upper jack 5311 and the driven lower jack 524 from top to bottom, and the active center piece 511 of the driving piece 51 is limited to the limiting protrusion. 331 upper end face. It can be seen from the above structural design that the guiding core 3 is a triggering member for moving the sounding component 5, and the sounding component 5 can not only move up and down with the upward movement of the guiding core 3, but also can move vertically along the positioning insertion post 33, Tilting will occur.

The specific sounding principle of this embodiment is:

When the guide core 3 is not pressed, as shown in FIG. 11, the active piece 51 is in a natural state, and the active side piece 512 at both ends of the active center piece 511 is inclined downward, so that the active piece 51 is an arc-shaped body that is arched upward in the middle. The upward pulling force is not generated on the driven piece 53, and at this time, the first striking block 521 on the driven block 52 is separated from the second striking block 22 on the lower end surface of the cover 2.

When the guiding core 3 is pressed downward, as shown in FIG. 12, the guiding core 3 applies a force to the active center piece 511, and drives the active center piece 511 to move downward, thereby promoting the active side piece at both ends of the active center piece 511. When the 512 is raised upward, the active side piece 512 at both ends of the active center piece 511 is inclined upward, so that the active piece 51 has an arcuate body that is concave downward in the middle; at this time, the active side piece 512 on both sides of the active piece 51 drives the driven piece. The upper portion 53 is moved upwardly with the driven block 52, thereby causing the first striking block 521 on the driven block 52 to strike the second striking block 22 on the lower end surface of the cover 2 to emit a sound, thereby realizing the pressing sounding function.

In this embodiment, the elastic member 4 is a spring 4'. The spring 4' is sleeved on the periphery of the positioning post 33 and located below the limiting protrusion 331. During the movement of the guiding core 3 up and down, the spring 4' An elastic restoring force is provided for the upward movement of the core 3.

As shown in FIG. 11 to FIG. 13 , a guiding post 11 is protruded upwardly on the base 1 , and a guiding slot 12 for inserting the positioning post 33 is recessed downwardly on the upper end surface of the guiding post 11 , and A support boss 121 for supporting the lower end of the spring 4' is disposed on the inner wall of the guide slot 12; and a movable slot 13 for the movement of the sound emitting component 5 is disposed on the base 1 and located around the guide post 11. In this embodiment, the limiting protrusion 331 and the supporting boss 121 are combined to define the positional relationship of the spring 4' and the deformation movable range, and the spring 4' is prevented from deviating from the position, so that the spring 4' can be the guiding core 3. The reset provides accurate elastic restoring force.

As shown in FIG. 2 and FIG. 14 , a plurality of longitudinal insertion grooves 14 are defined on the outer side of the base 1 , and a plurality of embedded blocks 23 embedded in the longitudinal insertion grooves 14 are disposed downwardly at the lower end edge of the cover 2 . A card block 15 is protruded outwardly from the upper portion of the longitudinal insertion groove 14. A card hole 231 is formed in the insertion block 23 for the card block 15 to be inserted. The special structure on the base 1 and the cover 2 is designed to form a mutual engagement structure, thereby achieving a tight and stable combination between the base 1 and the cover 2, and improving the overall structural stability of the key switch.

In this embodiment, the button switch can be made into a mechanical button switch, or can be made into a photoelectric button switch, which is mainly distinguished by its conduction component.

When a mechanical conduction component 6 is inserted into the base 1, the formed key switch is a mechanical key switch. Specifically, as shown in FIG. 1 to FIG. 3, the mechanical conduction component 6 includes a base switch. a movable piece 61 on the base 1 and a static piece 62 inserted on the base 1 and located inside the movable piece 61, a convex sill 611 is protruded from a side of the movable piece 61 near the guiding core 3, A pressing protrusion 34 corresponding to the convex hull 611 is disposed on a side of the guiding core 3. The conduction principle of the mechanical conduction component 6 is that, when in the unpressed state, the pressing protrusion 34 on the side of the guiding core 3 is located just on the inner side of the convex 611 on the side of the movable piece 61, and is pressed outward. The convex hull 611 is pushed to deform the entire moving piece 61 outward, and the movable contact on the movable piece 61 is separated from the static contact on the static piece 62, and the key switch is in an open state; when the guiding core 3 is moved downward When the pressing protrusion 34 moves downward, when the pressing protrusion 34 moves down to the convex hull 611 of the moving piece 61, the pressing force of the pressing protrusion 34 to the convex sill 611 disappears, and the moving piece 61 rebounds. When the movable contact on the movable piece 61 is brought into contact with the static contact on the static piece 62, the key switch is in an on state.

When the conductive component is the photoelectric conductive component 8, the formed key switch is a photoelectric key switch. Specifically, as shown in FIG. 15, the key switch further includes a PCB board 7 disposed on the lower end surface of the base 1, and a photoelectric conduction component 8 disposed on the lower end surface of the PCB board 7, wherein the photoelectric conduction component 8 includes an LED emission tube 81 and an LED receiving tube 82; at the lower end surface of the base 1 and at the guiding pillar The lower end of the 11 is provided with a guiding post extending portion 16 , and a light guiding hole 161 communicating with the guiding slot 12 is defined in the guiding post extending portion 16 , and the LED transmitting tube 81 is located at one side of the light guiding hole 161 . The LED receiving tube 82 is located on the other side of the light guiding hole 161. The conduction principle of the photoelectric conduction component 8 is: when the LED receiving tube 82 receives the light generated by the LED transmitting tube 81, the key switch is turned on, and when the LED receiving tube 82 cannot receive the light generated by the LED transmitting tube 81, The button switch is turned off, and whether the LED receiving tube 82 can receive the light emitted by the LED transmitting tube 81 is determined by the up and down movement of the guiding core 3.

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. Therefore, other configurations obtained by using the same or similar technical features as the above-described embodiments of the present invention are all in the present invention. Within the scope of protection.

Claims (10)

A push button for pressing a sound, comprising a base and a cover disposed above the base, the cover and the base are combined to form a receiving cavity, a guiding core is disposed in the receiving cavity, and is located An elastic member under the guiding core, further comprising a sounding component disposed in the accommodating cavity and located at a lower end of the guiding core, the sounding component comprising an active piece, a driven block, and the active piece and the slave a follower piece between the moving blocks, at least one first tapping block is disposed on the driven block, and at least one second tapping block corresponding to the first tapping block is disposed in the receiving cavity . The push-to-sound button switch according to claim 1, wherein the first tapping block is disposed on an upper surface of the driven block, and the second striking block is disposed on a lower end surface of the cover. The vocalized push button switch according to claim 1 or 2, wherein the active piece is a metal elastic piece, and the active piece comprises an active center piece and are respectively inclined downwardly disposed at two ends of the active center piece. An active side panel, wherein an active jack is disposed on the active center panel, and an insert block is disposed at an end of the active side panel. The push-to-sound button switch according to claim 3, wherein the follower piece comprises a driven center piece, and a driven side piece integrally formed at both ends of the driven center piece and inclined upwardly The lower end of the driven side piece has an arc connecting block connected to the end of the driven center piece, and the driven center piece is provided with a driven upper jack directly below the active jack, the driven side The sheet is inclined to the inner side, and an insertion hole for inserting the insertion block is opened at the end of the driven side piece, and at the same time, the end portion of the driven side piece is bent outward to form a bent position piece. The push-to-sound button switch according to claim 4, wherein the driven center piece is disposed on the upper end surface of the driven block, and a plurality of connecting jacks are formed on the driven center piece; a plurality of connecting posts inserted into the connecting jacks are protruded upwardly from the upper end surface of the block, and a plurality of limiting bumps extending to the edge of the driven center piece are disposed on the upper end edge of the driven block, and on the driven block a driven lower jack directly under the driven upper jack is disposed; an inclined surface is respectively disposed at both ends of the upper end surface of the driven block and below the curved connecting block, and the inclined surface is sequentially turned from top to bottom Tilt outside. The vocalized push button switch according to claim 5, wherein the lower end of the guiding core has a lower guiding block, and the lower end of the guiding core has a retaining slot on each side of the lower guiding block, An active center piece is disposed on a lower end surface of the lower guide block; a positioning post is disposed downwardly from a lower end of the lower guide block, and at least one limiting protrusion is disposed on an outer side of the upper part of the positioning post, the positioning plug The column is inserted into the active jack, the driven upper jack and the driven lower jack from top to bottom, and the active center piece of the active piece is located at the upper end surface of the limiting protrusion. The squeaky push button switch according to claim 6, wherein the elastic member is a spring, and the spring is sleeved on the periphery of the positioning post and located under the limiting protrusion. The push-to-sound button switch according to claim 7, wherein a guiding post is protruded upwardly on the base, and a guiding slot for positioning the insertion post is recessed downwardly on the upper end surface of the guiding post And a supporting boss for supporting the lower end of the spring is disposed on the inner wall of the guiding slot; and a movable slot for the movement of the sound emitting component is disposed on the base and located at the periphery of the guiding post. The push button according to claim 1, further comprising a mechanical conduction component inserted on the base, the mechanical conduction component comprising a movable piece inserted on the base, And a static piece inserted on the base and located inside the movable piece, a convex hull is convexly disposed on a side of the moving piece near the guiding core, and a convex hull is disposed on a side of the guiding core One presses the bump. The push-to-sound button switch according to claim 8, further comprising a PCB board disposed on the lower end surface of the base, and a photoelectric conduction component disposed on the lower end surface of the PCB board, wherein the photoelectric type The conducting component includes an LED emitting tube and an LED receiving tube; a guiding post extending portion is disposed at a lower end surface of the base and at a lower end of the guiding post, and a guiding portion is connected to the guiding slot a light conducting hole, the LED emitting tube is located at one side of the light conducting hole, and the LED receiving tube is located at the other side of the light conducting hole.

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