Key with bottom-touching acoustic control function

Abstract

The application relates to the field of keys, in particular to a key with a bottom-touching acoustic regulation function. The structure comprises a fixedly installed base shell, an active assembly axially slidably arranged in the base shell, and a reset elastic piece arranged between the two. The active assembly comprises a trigger shaft body extending towards the bottom end of the base shell, which forms a contact collision with the inner bottom surface of the base shell at the terminal stroke position of the active assembly; the inner bottom bearing surface is integrated with an acoustic regulation structure corresponding to the collision area of the trigger shaft body, which is composed of three geometric configurations that can exist independently or be combined: a boss positioned at the geometric center of the collision area, a protrusion arranged continuously or discontinuously around the collision area, and an opening arranged in the interior or adjacent area of the collision area. The key realizes directional regulation of the bottom-touching sound spectrum characteristics during key operation by optimizing the physical geometric characteristics of the bottom-touching collision interface.

Description

Technical Field

[0001] This application relates to the field of buttons, and in particular to a button with bottom-out acoustic control function. Background Technology

[0002] In current keyboard technology, especially in mechanical keyboards where high tactile sensitivity and feedback accuracy are required, key actuation and bottoming out are primarily achieved through the direct impact of a key switch with the bottom of the keyboard base. Existing designs generally employ a flat or simply curved base surface. When a user presses a key, the key switch moves to its end and strikes the inner bottom surface of the base, producing a knocking sound. This sound serves as an important physical feedback signal, confirming to the user that the key has been effectively actuated (bottomed out). This structural principle is widely used in many computer peripherals, including office keyboards and gaming keyboards.

[0003] However, existing structural designs based on direct impact have significant shortcomings in generating audible feedback during operation. A core issue is that the impact sound produced when the shaft bottoms out is often harsh, abrupt, or noisy, lacking any pleasantness. This poor sound experience negatively impacts users seeking a high-quality operating experience, especially in environments requiring frequent button presses or scenarios emphasizing detailed feedback. The main reason for this deficiency lies in the overly simplified structural design, lacking acoustic tuning at the impact point or area, which easily produces sharp, thin high-frequency noise rather than a harmonious sound. Utility Model Content

[0004] The purpose of this application is to overcome at least one deficiency in the prior art and provide a button with bottom-touch acoustic control function. This button achieves directional control of the bottom-touch sound spectrum characteristics during button operation by optimizing the physical geometry of the bottom-touch interface.

[0005] To achieve the above objectives, this application discloses a button structure with bottom-touch acoustic control function, including a fixedly installed base housing, a movable component slidably disposed within the base housing, and a reset elastic element disposed between the two. The movable component includes a trigger shaft extending towards the bottom end of the base housing, which contacts and collides with the inner bottom surface of the base housing at the end stroke position of the movable component; the inner bottom surface integrates an acoustic control structure corresponding to the collision area of ​​the trigger shaft, which consists of three geometric configurations that can exist independently or be combined: a boss positioned at the geometric center of the collision area, protrusions arranged continuously or intermittently around the collision area, and an opening disposed inside or adjacent to the collision area.

[0006] Furthermore, the opening includes at least one through hole.

[0007] As an optional technical solution, there are three openings arranged in a triangular pattern. Preferably, the openings are round or square.

[0008] As an optional technical solution, the boss is a circular boss that is coaxial and concentric with the trigger shaft. Preferably, the upper surface of the boss is a planar concave-arc convex surface.

[0009] As an optional technical solution, the protrusion is an annular protrusion.

[0010] As an optional technical solution, the acoustic control structure is a combination of a protrusion and an opening. The protrusion is an annular protrusion that is coaxial and concentric with the trigger shaft, and the base housing has an opening at the center of the annular protrusion.

[0011] As an optional technical solution, the base housing adopts a split design and is composed of at least two components that are combined and fixed together.

[0012] As an optional technical solution, a permanent magnet is assembled or embedded in the trigger contact of the active component, and the permanent magnet is part of the trigger shaft.

[0013] Furthermore, the permanent magnet contacts and collides with the inner bottom surface at the end of the travel of the active component.

[0014] Compared with the prior art, this application has at least one of the following beneficial technical effects: 1. Significantly improves the quality of the button bottoming-out sound, making it more harmonious and pleasant to listen to.

[0015] 2. Effectively reduces high-frequency noise and interference, and reduces the harshness of the sound.

[0016] 3. Optimize operation feedback to improve user comfort in high-frequency button scenarios.

[0017] The beneficial effects listed above are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementation methods will be further disclosed in the embodiments or other descriptive sections of this application. Attached Figure Description

[0018] A better understanding of various aspects of this disclosure will be achieved by reading the following detailed description in conjunction with the accompanying drawings. The positions, dimensions, and extents of the structures shown in the drawings, etc., do not always represent actual positions, dimensions, and extents. In the drawings: Figure 1 This is a schematic diagram of the structure of the first embodiment disclosed in this application.

[0019] Figure 2 This is an exploded view of the structure of the first embodiment disclosed in this application.

[0020] Figure 3This is a schematic diagram of the base housing structure in the first embodiment disclosed in this application.

[0021] Figure 4 This is a schematic diagram of the base housing in the second embodiment disclosed in this application.

[0022] Figure 5 This is a schematic diagram of the base housing in the third embodiment disclosed in this application.

[0023] Figure 6 This is a schematic diagram of the base housing in the fourth embodiment disclosed in this application.

[0024] Figure 7 This is a schematic diagram of the base housing in the fifth embodiment disclosed in this application.

[0025] Figure 8 This is a schematic diagram of the base housing structure in the sixth embodiment disclosed in this application.

[0026] Figure 9 This is a schematic diagram of the base housing in the seventh embodiment disclosed in this application. Detailed Implementation

[0027] The present disclosure will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments.

[0028] It should be understood that the same reference numerals denote the same elements in all the accompanying drawings. For clarity, the dimensions of certain features may be modified in the drawings.

[0029] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this disclosure. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. For the sake of brevity and / or clarity, techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail; however, where appropriate, such techniques, methods, and apparatus should be considered part of this specification.

[0030] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0031] To better understand the button structure with bottom-touch acoustic control function described in this invention, the preferred embodiment of the structure is described in detail below with reference to the accompanying drawings. This embodiment demonstrates a button assembly integrating a permanent magnet and an acoustic control structure, suitable for electronic device input scenarios requiring clear tactile feedback and optimized sound effects.

[0032] like Figure 1 and Figure 2 As shown, the button structure comprises a base housing 1, a movable component 2 slidably mounted within the base housing 1 in a vertical direction, and a reset elastic element 3 disposed between the two. The base housing 1 has a compact structure, preferably an integral structure, forming an internal cavity space for guiding and supporting the sliding movement of the movable component 2. The movable component 2 is located above the base housing 1 and can slide axially downward under external force, forming a complete button action cycle.

[0033] The active component 2 mainly consists of a body and a trigger shaft 21. The body, protruding from the base housing 1, is used to cooperate with external driving components or structures such as keycaps to realize direct force input from the user. The trigger shaft 21 extends downward through the base housing 1. In particular, the key in this embodiment is a magnetic shaft key. A permanent magnet 5 is embedded in the lower end of the trigger shaft 21. The permanent magnet 5 is integrally fixed with the trigger shaft 21, and the structure can be integrated through overmolding or precision assembly.

[0034] like Figure 3 As shown, a circular boss 41 is provided in the center of the bottom inner wall of the base housing 1. This boss 41 is coaxially arranged with the trigger shaft 21 in the axial direction. This circular boss 41 is the first type of acoustic control structure, with a flat top surface that forms a clearly defined impact area. When the user presses the active component 2 to the end travel position, the bottom surface of the trigger shaft 21 makes direct contact with the upper surface of the circular boss 41, generating a clear, focused, and controlled knocking sound within a specific frequency range through a precise geometric contact interface, thus achieving rhythmic acoustic feedback.

[0035] Furthermore, such as Figure 4 As shown, in another embodiment, the upper surface of the circular boss 41 is changed to a concave arc-shaped convex surface, forming a shape similar to a shallow dish. By adjusting the impact area, different sound effects and purposes can be achieved.

[0036] Based on the above structure, to meet the diverse sound quality requirements of different usage scenarios, the acoustic control structure can also adopt alternative or composite configurations, such as... Figure 5 As shown, in one embodiment, the bottom of the base housing 1 is provided with an opening 42 coaxially arranged with the trigger shaft 21. The opening 42 is a circular through hole. The diameter of this hole is controlled within the range of the trigger shaft diameter.

[0037] like Figure 6 As shown, in another embodiment, the opening 42 is a square hole and is coaxially arranged with the trigger shaft 21. The difference in its geometry causes the bottoming sound wave to change, which is suitable for games or differentiated function buttons.

[0038] Figure 7 An embodiment is shown, featuring an independently positioned annular protrusion 43 that is structurally coaxial with the trigger shaft 21 and slightly higher than the bottom plane inside the base housing 1. When the button is actuated to its final position, the trigger shaft 21 contacts the annular protrusion 43, resulting in a striking sound.

[0039] like Figure 8 A further embodiment is shown, which uses a composite control structure, combined with Figure 5 and Figure 7 The design is as follows: A ring-shaped protrusion 43 is set coaxially and concentrically on the trigger shaft 21, and a circular through hole 42 is set at the center of the protrusion.

[0040] like Figure 9 As shown, in another specific embodiment, the acoustic control structure consists of three openings 42, which are circular through holes. The three circular through holes are respectively arranged in an equilateral triangle in the bottom contact area of ​​the base housing 1.

[0041] In all the above structures, the reset elastic element 3 is always disposed in the cavity between the movable component 2 and the base housing 1, and is used to realize automatic rebound after the button is released. The reset element can be a compression spring or a flexible silicone structure, and the material selection can be adjusted according to the specific application requirements.

[0042] During the overall assembly of this structure, the permanent magnet 5 is fixed inside the trigger shaft 21 through integrated injection molding or pre-embedded assembly. The movable component 2 and the guide structure of the base housing 1 are fitted with a clearance to ensure smooth sliding without wobbling. The bottom structure of the base housing 1 is formed into the target control configuration, such as bosses, openings, or protrusions, through mold processing. The structural precision is controlled within an acceptable tolerance range to ensure the consistency and responsiveness of the sound effect.

[0043] In practical applications, such as keyboards and gaming controllers, different sound effect designs can be achieved by selecting different types of acoustic control structures.

[0044] It is worth mentioning that the technical contents not explicitly detailed above, such as sliding guide structure, elastic element structure details, magnet material parameters, electromagnetic compatibility design, etc., are all well-known technologies that can be routinely mastered by those skilled in the art and belong to the scope of prior art, and will not be elaborated in this application.

[0045] In summary, this embodiment, by introducing a trigger shaft with an embedded permanent magnet into the active component and combining it with various acoustic control structures of selectable shapes, achieves quality adjustment of the bottom-out sound of the button, optimization of the click feel, and consistent control of the sound directionality without changing the structural compactness. It has good practical application prospects and promotional value.

[0046] While exemplary embodiments of this disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of this disclosure without departing from the spirit and scope thereof. Therefore, all changes and modifications are included within the scope of protection of this disclosure as defined by the claims. This disclosure is defined by the appended claims, and equivalents of those claims are also included.

Claims

1. A button with bottom-touch acoustic control function, characterized in that, The device includes a fixedly mounted base housing, a movable component slidably disposed within the base housing, and a reset elastic element disposed between the two. The movable component includes a trigger shaft extending toward the bottom end of the base housing, which contacts and collides with the inner bottom surface of the base housing at the end stroke position of the movable component. An acoustic control structure is integrated on the inner bottom surface corresponding to the collision area of ​​the trigger shaft. This structure consists of three geometric configurations that can exist independently or be combined: a boss located at the geometric center of the collision area, protrusions arranged continuously or intermittently around the collision area, and an opening disposed inside or adjacent to the collision area.

2. The button with bottom-touch acoustic control function as described in claim 1, characterized in that, The opening includes at least one through hole.

3. The button with bottom-touch acoustic control function as described in claim 1, characterized in that, There are three openings, arranged in a triangular pattern.

4. The button with bottom-touch acoustic control function according to any one of claims 1, 2, and 3, characterized in that, The opening can be round or square.

5. The button with bottom-touch acoustic control function as described in claim 1, characterized in that, The boss is a circular boss that is coaxial and concentric with the trigger shaft.

6. The button with bottom-touch acoustic control function according to claim 1 or 5, characterized in that, The upper surface of the boss is either a flat surface or a concave arc-shaped convex surface.

7. The button with bottom-touch acoustic control function as described in claim 1, characterized in that, The protrusion is a ring-shaped protrusion.

8. The button with bottom-touch acoustic control function as described in claim 1, characterized in that, The acoustic control structure is a combination of a protrusion and an opening. The protrusion is an annular protrusion that is coaxial and concentric with the trigger shaft, and the base housing has an opening at the center of the annular protrusion.

9. The button with bottom-touch acoustic control function as described in claim 1, characterized in that, The base housing adopts a split design and is composed of at least two components that are combined and fixed together.

10. The button with bottom-touch acoustic control function as described in claim 1, characterized in that, The active component has a permanent magnet assembled or embedded in its trigger contact body, which serves as part of the trigger shaft; the permanent magnet contacts and collides with the inner bottom surface at the end stroke position of the active component.

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