Sound generating mechanism applied to key switch

Abstract

The application discloses a sound producing mechanism applied to a key switch, comprising a key cap, a guide core arranged below the key cap, a sound producing ring and a seat body arranged below the key cap, wherein at least one driving block acting on the sound producing ring is arranged on the guide core, at least one displacement slot matched with the driving block is formed on the sound producing ring, at least one rotation guide protrusion is formed on the sound producing ring, and at least one rotation guide inclined surface acting on the rotation guide protrusion is formed on the seat body. The sound producing mechanism applied to the key switch has the advantages that the pressing sound producing effect is realized, the structures are closely matched, the action is smooth, fast, stable, accurate, the structure service life is long, the sound producing effect is good, the sound producing effect will not be reduced during long-term use, and the user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of push button switches, and more particularly to a sound-generating mechanism for use in push button switches. Background Technology

[0002] Currently, the most widely used sound-emitting button switches on the market use a torsion spring to strike the button switch base or top cover to produce sound. However, after prolonged use, the torsion spring reaches its maximum number of strikes, causing it to deform and become unable to spring again. This results in a short lifespan for the torsion spring and a significant reduction in sound quality. Summary of the Invention

[0003] To address the aforementioned shortcomings, the present invention aims to provide a sound-generating mechanism for push-button switches, achieving a sound-generating effect upon pressing. The various structures are tightly integrated, resulting in smooth, fast, stable, and precise movements. The structure has a long lifespan, provides excellent sound generation, and the sound generation effect will not decrease with long-term use, thereby enhancing the user experience.

[0004] The technical solution adopted by the present invention to achieve the above objectives is as follows:

[0005] A sound-generating mechanism for a push-button switch includes a keycap and a guide core disposed below the keycap. The mechanism further includes a sound-generating ring and a base disposed below the keycap. The guide core has at least one driving block acting on the sound-generating ring. The sound-generating ring has at least one clearance groove matching the driving block. The sound-generating ring also has at least one rotational guide protrusion. The base has at least one rotational guide inclined surface acting on the rotational guide protrusion.

[0006] As a further improvement of the present invention, the sound-generating ring is disposed around the periphery of the guide core, the relief groove is formed on the bottom surface of the sound-generating ring, and the driving block on the guide core extends to the bottom of the sound-generating ring.

[0007] As a further improvement of the present invention, at least one rotary guide inclined hole is formed on the base body for the rotary guide protrusion to be inserted and moved, and the rotary guide inclined surface is formed on the inner wall of the rotary guide inclined hole.

[0008] As a further improvement of the present invention, the base includes a cover plate connected to the keycap and a guide seat connected to the cover plate and surrounding the periphery of the sound ring, wherein the rotating guide oblique hole is formed on the guide seat.

[0009] As a further improvement of the present invention, a first reset elastic element is provided between the keycap and the guide core.

[0010] As a further improvement of the present invention, a mounting base is provided protruding downward on the lower surface of the keycap, a mounting base movable cavity is formed in the mounting base, and at least one longitudinal guide hole communicating with the mounting base movable cavity is formed on the side of the mounting base; the guide core is movably inserted into the mounting base movable cavity from the lower end of the mounting base, and at least one guide protrusion is provided on the side of the guide core that can be movably engaged in the longitudinal guide hole; a guide core movable cavity is recessed downward on the upper end face of the guide core, the first reset elastic element is a first spring, the first spring is disposed in the mounting base movable cavity and the guide core movable cavity; the driving block is disposed on the outer side of the guide core and is located below the mounting base.

[0011] As a further improvement of the present invention, a second reset elastic element is provided between the sound ring and the keycap.

[0012] As a further improvement of the present invention, a support step is provided on the inner side of the sound-generating ring, and the second reset elastic element is a second spring, which is located between the keycap and the support step.

[0013] As a further improvement of the present invention, the base and the keycap are a separate structure that is connected as one piece, or the base and the keycap are a one-piece molded structure.

[0014] As a further improvement of the present invention, the number of driving blocks is two, and they are arranged opposite to each other on the side of the guide core; the number of relief grooves is two, and they are arranged opposite to each other on the bottom surface of the sound ring; the number of rotary guide protrusions is two, and they are arranged opposite to each other on the outer side of the sound ring; the number of rotary guide oblique holes is two, and they are arranged opposite to each other on the side of the base.

[0015] The beneficial effects of this invention are as follows: by combining the keycap, guide core, sound ring and base structure with special structural design, the effect of pressing and producing sound is achieved. The components fit together closely, the action is smooth, fast, stable and precise, the structure has a long lifespan, the sound effect is good, and the sound effect will not decrease with long-term use, thus improving the user experience.

[0016] The above is an overview of the invention's technical solution. The invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 This is an exploded view of the present invention;

[0020] Figure 4 This is a partial structural schematic diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure combining the keycap and the guide core in this invention;

[0022] Figure 6 This is a schematic diagram of the sound-generating ring in this invention;

[0023] Figure 7 This is a schematic diagram of the structure of the sound-generating ring combined with the base in this invention. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the specific implementation of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0025] Please refer to Figures 1 to 4 This invention provides a sound-generating mechanism for a key switch, comprising a keycap 1, a guide core 2 disposed below the keycap 1, a sound-generating ring 3 and a base 4 respectively disposed below the keycap 1, wherein at least one driving block 21 acting on the sound-generating ring 3 is provided on the guide core 2, at least one clearance groove 31 matching the driving block 21 is formed on the sound-generating ring 3, and at least one rotational guide protrusion 32 is formed on the sound-generating ring 3, and at least one rotational guide inclined surface 40 acting on the rotational guide protrusion 32 is formed on the base 4.

[0026] When the keycap 1 is not pressed, i.e., in a stationary state, the drive block 21 on the guide core 2 is misaligned with the relief groove 31 on the sound ring 3, such as... Figure 2 As shown.

[0027] When keycap 1 is pressed down, keycap 1 moves downward, and guide core 2 moves upward relative to keycap 1. When guide core 2 moves upward relative to keycap 1, it drives sound ring 3 to move upward relative to keycap 1 through drive block 21. At the same time, base 4 moves downward with keycap 1. After sound ring 3 moves upward relative to keycap 1 for a certain distance, the rotation guide protrusion 32 on sound ring 3 contacts the rotation guide inclined surface 40 on base 4, and under the guidance of rotation guide inclined surface 40, it triggers sound ring 3 to rotate. After sound ring 3 rotates, it will suddenly disengage from drive block 21 and rotate to the relief groove 31 corresponding to drive block 21. Then drive block 21 releases the force on sound ring 3, and sound ring 3 strikes downward to produce sound. Specifically, the rotation guide protrusion 32 of sound ring 3 strikes base 4, and / or the relief groove 31 of sound ring 3 strikes drive block 21 to produce sound, thus achieving the purpose of pressing to produce sound.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown, the sound-generating ring 3 is arranged around the guide core 2, the relief groove 31 is formed on the bottom surface of the sound-generating ring 3, and the driving block 21 on the guide core 2 extends to the bottom of the sound-generating ring 3. Due to the special position setting of the relief groove 31 and the driving block 21, as long as the sound-generating ring 3 rotates, it can rotate until the relief groove 31 corresponds to the driving block 21. Thus, the relief groove 31 provides relief space, which facilitates the sound-generating ring 3 to instantly detach from the driving block 21, so as to achieve the purpose of impacting downwards to generate sound.

[0029] For the design of the position of the rotary guide ramp 40, such as Figure 4 and Figure 7 As shown, in this embodiment, at least one rotary guide inclined hole 41 is formed on the base 4 for the rotary guide protrusion 32 to be inserted and moved. The rotary guide inclined surface 40 is formed on the inner wall of the rotary guide inclined hole 41. The structural design of the rotary guide inclined hole 41 with the rotary guide inclined surface 40 provides a movement trajectory for the rotary guide protrusion 32. When the sound ring 3 moves upward relative to the base 4, the rotary guide protrusion 32 moves within the rotary guide inclined hole 41, and under the guidance of the rotary guide inclined surface 40, it causes the rotary guide protrusion 32 to drive the sound ring 3 to undergo lateral displacement, that is, to rotate.

[0030] In this embodiment, as Figure 7 As shown, the base 4 includes a cover plate 42 connected to the keycap 1 and a guide seat 43 connected to the cover plate 42 and surrounding the periphery of the sound-emitting ring 3. The rotating guide oblique hole 41 is formed on the guide seat 43. At the same time, the guide seat 43 surrounds the upper periphery of the sound-emitting ring 3.

[0031] In order to provide elastic restoring force for the keycap 1 and / or the guide core 2, a first reset elastic element 5 is provided between the keycap 1 and the guide core 2 in this embodiment.

[0032] Regarding the connection relationship between the guide core 2 and the keycap 1, as follows: Figure 1 and Figure 5 As shown, in this embodiment, a mounting base 11 protrudes downward from the lower surface of the keycap 1. A mounting base movable cavity 111 is formed within the mounting base 11, and at least one longitudinal guide hole 112 communicating with the mounting base movable cavity 111 is formed on the side of the mounting base 11. The guide core 2 is movably inserted into the mounting base movable cavity 111 from the lower end of the mounting base 11, and at least one guide protrusion 22 protrudes from the side of the guide core 2 and is movably engaged in the longitudinal guide hole 112. Preferably, in this embodiment, there are two longitudinal guide holes 112 and two guide protrusions 22, and they are arranged in a one-to-one correspondence. When the keycap 1 is pressed down, the guide protrusions 22 on the guide core 2 slide vertically within the longitudinal guide holes 112 of the mounting base 11, playing a good guiding role to improve the linear stability of the relative movement between the keycap 1 and the guide core 2.

[0033] For the installation of the first reset elastic element 5, in this embodiment, a guide core movable cavity 23 is provided with a downward recess on the upper end face of the guide core 2. The first reset elastic element 5 is a first spring 5', which is disposed in the mounting seat movable cavity 111 and the guide core movable cavity 23. When the keycap 1 is pressed down, the guide core 2 and the keycap 1 interact, causing the first spring 5' to be compressed; when the pressure on the keycap 1 is released, the elastic restoring force of the first spring 5' provides elastic restoring force for the keycap 1 and / or the guide core 2 to reset.

[0034] To facilitate the action of the drive block 21 on the outer sound-emitting ring 3, in this embodiment, the drive block 21 is positioned on the outer side of the guide core 2 and below the mounting base 11, as shown below. Figure 5 As shown.

[0035] To provide elastic restoring force for the sound-generating ring 3 so that it can strike downwards to produce sound, this embodiment provides a second restoring elastic element 6 between the sound-generating ring 3 and the keycap 1. Specifically, as shown... Figure 6 As shown, a support step 33 protrudes from the inner side of the sound-generating ring 3. The second reset elastic element 6 is a second spring 6', which is located between the keycap 1 and the support step 33. When the driving block 21 on the guide core 2 drives the sound-generating ring 3 to move upward relative to the keycap 1, the sound-generating ring 3 interacts with the keycap 1, causing the second spring 6' to be compressed. When the sound-generating ring 3 rotates, the driving block 21 releases the force on the sound-generating ring 3. Under the action of the elastic restoring force of the second spring 6', the sound-generating ring 3 is subjected to a rapid downward action, causing the sound-generating ring 3 to strike downward and produce sound, increasing the impact force and speed, thereby improving the impact sound.

[0036] Regarding the structural design of the base 4 and keycap 1, in this embodiment, the base 4 and keycap 1 can be a separate structure connected as one unit, such as... Figure 2 As shown, the base 4 is secured to the lower surface of the keycap 1. Of course, the base 4 and the keycap 1 can also be a one-piece molded structure, that is, the base 4 and the keycap 1 are formed as one piece during the molding process.

[0037] In this embodiment, to ensure smoother, faster, and more precise operation of each structure and facilitate the sound-generating function, preferably, there are two driving blocks 21, which are positioned opposite each other on the side of the guide core 2. The driving blocks 21 can exert an upward force on the sound-generating ring 3 from opposite sides, thus facilitating the smooth upward movement of the sound-generating ring 3 relative to the keycap 1. Correspondingly, there are two relief grooves 31, which are positioned opposite each other on the bottom surface of the sound-generating ring 3. The number of relief grooves 31 is the same as the number of driving blocks 21. After the sound-generating ring 3 rotates, the relief grooves 31 provide relief space for the driving blocks 21, allowing the driving blocks 21 to release the force exerted on the sound-generating ring 3. There are two rotating guide protrusions 32, which are arranged opposite each other on the outer side of the sound-generating ring 3. At the same time, there are two rotating guide oblique holes 41, which are arranged opposite each other on the side of the base 4. The number of rotating guide oblique holes 41 is the same as the number of rotating guide protrusions 32. The rotating guide protrusions 32 of the sound-generating ring 3 can interact with the rotating guide oblique holes 41 from opposite sides to realize the rotation of the sound-generating ring 3, which helps to improve the accuracy and stability of the rotation of the sound-generating ring 3.

[0038] Of course, the number of the above structures can be increased or decreased according to specific needs.

[0039] The sound-generating mechanism in this embodiment is mainly used in push-button switch products to achieve the purpose of producing sound when pressed.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A sound-generating mechanism for a push-button switch, comprising a keycap and a guide core disposed below the keycap, characterized in that, It also includes a sound ring and a base respectively disposed below the keycap, wherein at least one driving block acting on the sound ring is disposed on the guide core, at least one clearance groove matching the driving block is formed on the sound ring, and at least one rotary guide protrusion is formed on the sound ring, and at least one rotary guide inclined surface acting on the rotary guide protrusion is formed on the base. A first reset elastic element is provided between the keycap and the guide core; A mounting base is provided on the lower surface of the keycap, and a mounting base movable cavity is formed in the mounting base. At least one longitudinal guide hole is formed on the side of the mounting base, which communicates with the mounting base movable cavity. The guide core is movably inserted into the mounting base movable cavity from the lower end of the mounting base, and at least one guide protrusion is provided on the side of the guide core, which is movably engaged in the longitudinal guide hole.

2. The sound-generating mechanism applied to a push-button switch according to claim 1, characterized in that, The sound-generating ring is disposed around the outer periphery of the guide core, the relief groove is formed on the bottom surface of the sound-generating ring, and the driving block on the guide core extends to the bottom of the sound-generating ring.

3. The sound-generating mechanism applied to a push-button switch according to claim 1, characterized in that, At least one rotary guide inclined hole is formed on the base body for the rotary guide protrusion to be inserted and moved, and the rotary guide inclined surface is formed on the inner wall of the rotary guide inclined hole.

4. The sound-generating mechanism applied to a push-button switch according to claim 3, characterized in that, The base includes a cover plate connected to the keycap and a guide seat connected to the cover plate and surrounding the sound ring, wherein the rotating guide oblique hole is formed on the guide seat.

5. The sound-generating mechanism applied to a push-button switch according to claim 1, characterized in that, A guide core movable cavity is provided with a downward recess on the upper end of the guide core. The first reset elastic element is a first spring, which is disposed in the movable cavity of the mounting base and the movable cavity of the guide core. The driving block is disposed on the outer side of the guide core and is located below the mounting base.

6. The sound-generating mechanism applied to a push-button switch according to any one of claims 1 to 4, characterized in that, A second reset elastic element is provided between the sound ring and the keycap.

7. The sound-generating mechanism for a push-button switch according to claim 6, characterized in that, A support step is provided on the inner side of the sound-generating ring, and the second reset elastic element is a second spring, which is located between the keycap and the support step.

8. The sound-generating mechanism for a push-button switch according to any one of claims 1 to 4, characterized in that, The base and keycaps are either a separate structure that is connected as one piece, or the base and keycaps are a one-piece molded structure.

9. The sound-generating mechanism applied to a push-button switch according to claim 3, characterized in that, The number of driving blocks is two, and they are arranged opposite each other on the side of the guide core; the number of relief grooves is two, and they are arranged opposite each other on the bottom surface of the sound ring; the number of rotary guide protrusions is two, and they are arranged opposite each other on the outer side of the sound ring; the number of rotary guide oblique holes is two, and they are arranged opposite each other on the side of the base.

Images