A key noise reduction assembly and a vehicle combination switch having the same
By introducing a micro-deformable cantilever beam structure into the button assembly, the collision noise of the buttons is buffered, solving the problem of button operation noise in electric vehicles, achieving noise reduction effect, and saving space and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VALEO INTERIOR CONTROLS (SHANGHAI) CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-05
AI Technical Summary
In electric vehicles, button operation noise is a prominent issue, especially the clanging sound of mechanical buttons and the simulated sound effect of capacitive touch buttons, which are noticeable in quiet environments, necessitating noise reduction solutions.
The beam-shaped deformable body with a cantilever beam structure generates micro-deformation when the collision component collides with the fixed ring, which buffers the collision noise of the button. The combined design of the shell, fixed ring and collision component reduces the noise of button operation.
It effectively reduces button noise, saves space and reduces costs, while maintaining button functionality.
Smart Images
Figure CN224328623U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a button noise reduction component and a vehicle combination switch having the component, and more specifically, to a button noise reduction component for motor vehicles and a vehicle combination switch having the component. Background Technology
[0002] The background description provided herein is intended to present the general context of this disclosure.
[0003] As the automotive industry rapidly advances towards electrification and intelligentization, people's demands for in-car environment and comfort are also increasing, especially for reducing cabin noise. Compared to traditional gasoline vehicles, electric vehicles significantly reduce powertrain noise, making previously masked interior operation noises (such as button touch sounds and mechanical switch operation sounds) more prominent in quiet environments.
[0004] Taking the physical / touch buttons on the multi-function steering wheel, center console, and door control areas of a car as examples, their noise generation mechanisms are complex. Mechanical buttons rely on elastic elements for resetting, resulting in frequent collision sounds; capacitive touch buttons introduce noise, which, while reducing mechanical vibration, introduces additional noise through simulated sound effects (such as buzzer beeps) to provide operational feedback. Therefore, noise reduction within the vehicle cabin is urgently needed. Utility Model Content
[0005] Therefore, there is an urgent need for a component that can reduce key noise.
[0006] This disclosure provides a component for key noise reduction, comprising: a housing having an enclosing space; a retaining ring connected to the housing, the retaining ring having sidewalls and a bottom surface; a collision member housed within the housing and configured such that its top surface faces the bottom surface of the retaining ring, and one or more protrusions are formed on the top surface of the collision member; a beam-shaped deformable body disposed on or integrally formed with the retaining ring; or disposed on or integrally formed with the collision member, the beam-shaped deformable body being deformable upon impact with the protrusions; wherein the protrusions are located at the center of the top surface of the collision member relative to the beam-shaped deformable body, or are configured as strips extending across the entire width of the top surface of the collision member.
[0007] In one embodiment of this disclosure, when the beam-shaped deformable body is disposed on or integrally formed with the fixed ring, the beam-shaped deformable body may be disposed on or integrally formed with the side wall of the fixed ring, and the bottom surface of the beam-shaped deformable body may constitute part of the bottom surface of the fixed ring. A rectangular through hole may be provided on the side wall of the fixed ring above the beam-shaped deformable body.
[0008] In one embodiment of this disclosure, when the beam-shaped deformable body is disposed on or integrally formed with the collision member, the top surface of the beam-shaped deformable body may constitute part of the top surface of the collision member, the protrusion may be disposed on the top surface of the beam-shaped deformable body, and a rectangular through hole may be provided in the collision member below the beam-shaped deformable body.
[0009] In one embodiment of this disclosure, the shorter side of the rectangular through hole may be greater than the height of the beam-shaped deformable body.
[0010] In one embodiment of this disclosure, the cross-section of the protrusion may include a semicircle, an ellipse, or a polygon.
[0011] In one embodiment of this disclosure, the beam-shaped deformable body may be a plastic material, or the beam-shaped deformable body may be made of steel.
[0012] In one embodiment of this disclosure, the long side of the rectangular through hole may be parallel to the bottom surface or the top surface of the beam-shaped deformable body.
[0013] In one embodiment of this disclosure, the width of the beam-shaped deformable body may be greater than the thickness of the sidewall of the fixing ring.
[0014] In one embodiment of this disclosure, the collision member may be disposed at one end of the button and connected to the button, the button may be coaxially disposed with the fixing ring, and the button and the fixing ring collide in the travel direction of the button during the rebound process of the button.
[0015] This disclosure provides a vehicle combination switch that includes the components described in any of the above claims.
[0016] The button noise reduction components in the various embodiments of this disclosure not only effectively reduce button noise, but also cleverly utilize the structure of each component to save space and reduce costs.
[0017] These and other aspects of this disclosure will become apparent from the following description of preferred embodiments in conjunction with the accompanying drawings and description, but variations and modifications may be made thereto without departing from the spirit and scope of the novel concept of this disclosure. Attached Figure Description
[0018] This disclosure will be more fully understood from the detailed description and accompanying drawings. These drawings illustrate one or more embodiments of this disclosure and, together with the written description, serve to explain the principles of this disclosure. Where possible, the same reference numerals are used throughout the drawings to denote the same or similar elements of the embodiments, and wherein:
[0019] Figure 1This is a perspective view of a vehicle combination switch including a component for button noise reduction according to an exemplary embodiment of the present disclosure.
[0020] Figure 2 This is a view of a button noise reduction component according to an exemplary embodiment of the present disclosure.
[0021] Figure 3 This is a partial enlarged view of a button noise reduction component according to an exemplary embodiment of the present disclosure.
[0022] Figure 4 This is a bottom view of a fixed ring according to an exemplary embodiment of the present disclosure.
[0023] Figure 5 This is a view of a button including a collision member according to an exemplary embodiment of the present disclosure.
[0024] Figure 6 This is another view of a vehicle combination switch including a component for button noise reduction according to an exemplary embodiment of the present disclosure. Detailed Implementation
[0025] The present disclosure will now be described more fully with reference to the accompanying drawings, which illustrate exemplary embodiments of the present disclosure. However, the present disclosure may be implemented in various ways and should not be construed as limited to the embodiments described herein. These embodiments are provided to make the disclosure more thorough and complete, and to fully convey the scope of the disclosure to those skilled in the art. In the drawings, the thickness and area of layers may be enlarged for clarity. Throughout the specification, the same reference numerals are used to denote the same elements. For different embodiments, elements may have different relationships and different positions.
[0026] In the field of motor vehicles, there are numerous buttons for activating various functions. However, these buttons often generate significant noise when they rebound, which is particularly noticeable in increasingly quiet vehicle cabins. Therefore, there is an urgent need for a component that can reduce button noise.
[0027] The button noise reduction component disclosed herein utilizes the micro-deformation generated by a cantilever beam to buffer the deformation caused by the collision of two components, thereby reducing the noise generated during the collision. For example... Figure 1-5As shown, component 1 includes: a housing 10 having an enclosing space; a retaining ring 20 connected to the housing 10, the retaining ring 20 having sidewalls 21 and a bottom surface 22; a collision member 30 housed within the housing 10 and configured such that its top surface 32 faces the bottom surface 22 of the retaining ring 20, and one or more protrusions 31 are formed on the top surface 32 of the collision member 30; a beam-shaped deformable body 40 which may be disposed on or integrally formed with the retaining ring 20; or on or integrally formed with the collision member 30, the beam-shaped deformable body 40 being deformable upon impact with the protrusions 31; the protrusions 31 being located at the center of the top surface 32 of the collision member 30 relative to the beam-shaped deformable body 40, or being configured as a strip extending across the entire width of the top surface of the collision member 30.
[0028] In one embodiment of this disclosure, such as Figure 2-5 As shown, the protrusion 31 is located on the top surface 32 of the collision member 30 so that, preferably, the protrusion 31 can strike the center of the beam-shaped deformable body 40 when it collides with the fixed ring 20.
[0029] In one embodiment of this disclosure, as shown in Figures 2-5, the protrusion 31 is an extended strip that spans the entire top surface of the collision member 30. Thus, when the collision member 30 collides with the retaining ring 20, the protrusion 31 can impact the entire width of the beam-shaped deformable body.
[0030] In one embodiment of this disclosure, such as Figure 1-5 As shown, the beam-shaped deformable member 40 can be disposed on either of the two components involved in the collision, or integrally formed with either of the two components involved in the collision. An embodiment of this disclosure uses a button in the automotive field as an example, and describes the integral formation of the beam-shaped deformable member 40 with a retaining ring as an example. The component 1 may have a housing 10 for accommodating the various components therein. This housing may be the housing of the button, or it may be the housing of a vehicle combination switch in which the button is mounted. In this example, the button 60 can be mounted on the housing 10, and the collision member 30 may be part of the button 60, or connected to the button 60 via other components. The button 60 and the retaining ring 20 may be generally circular components.
[0031] For ease of description, such as Figure 2As shown, the circumferential direction of the fixing ring 20 (more precisely, the circumferential direction of the fixing ring) is defined as the length direction of the beam-shaped deformable body 40, i.e., the direction indicated by the Y-axis in the coordinate system; the axial direction of the fixing ring 20 is defined as the height direction of the beam-shaped deformable body 40, i.e., the direction indicated by the X-axis in the coordinate system; and the thickness direction of the wall portion of the fixing ring 20 is defined as the width direction of the beam-shaped deformable body 40, i.e., the direction indicated by the Z-axis in the coordinate system.
[0032] like Figure 2-5 As shown, the beam-shaped deformable body 40 can be disposed on the fixed ring 20, for example, both ends of the beam-shaped deformable body 40 can be disposed on the fixed ring 20. In this example, the beam-shaped deformable body 40 can be integrally formed with the fixed ring 20. Specifically, both ends of the beam-shaped deformable body 40 extend from the side wall 21 of the fixed ring 20 to be integrally formed with the side wall 21. In other words, the beam-shaped deformable body 40 is perpendicular to the axis I of the fixed ring 20, so that the beam-shaped deformable body 40 can vibrate up and down in the direction of the axis I of the fixed ring 20.
[0033] The bottom surface of the beam-shaped deformable body 40 forms part of the bottom surface 22 of the fixing ring 20, and a rectangular through hole 50 is provided on the side wall 21 of the fixing ring 20 above the beam-shaped deformable body 40 to provide vibration and deformation space for the beam-shaped deformable body 40. In the example of this application, a rectangular through hole 50 can be opened near the bottom of the fixing ring 20, and the beam-shaped deformable body 40 is formed below the through hole 50.
[0034] In another embodiment of this disclosure, the beam-shaped deformable body 40 can be disposed on the collision member 30 (not shown). For example, both ends of the beam-shaped deformable body 40 can be disposed on the collision member 30, or the beam-shaped deformable body 40 can be integrally formed with the collision member 30. Specifically, both ends of the beam-shaped deformable body 40 can be connected to the collision member 30 or integrally formed with the collision member 30. In other words, since the collision member 30 collides and contacts the lower surface of the fixed ring 20, the top surface of the collision member 30 is approximately perpendicular to the axis I of the fixed ring 20, thereby the beam-shaped deformable body 40 is perpendicular to the axis I of the fixed ring 20, and thus the beam-shaped deformable body 40 can vibrate up and down in the axial direction of the fixed ring 20.
[0035] The top surface of the beam-shaped deformable body 40 forms part of the top surface 32 of the collision member 30. The protrusion 31 is provided on the top surface of the beam-shaped deformable body 40. A rectangular through hole is provided in the collision member 30 below the beam-shaped deformable body 40 to provide vibration and deformation space for the beam-shaped deformable body 40.
[0036] In one embodiment of this disclosure, such as Figure 2-5As shown, the shorter side of the rectangular through-hole 50 (i.e., along the axis I of the retaining ring) is greater than the height of the beam-shaped deformable body 40. Since the size of the user-accessible buttons 60 on motor vehicles is limited, the size of the beam-shaped deformable body 40 is smaller; for example, in this application, the beam-shaped deformable body can be a few millimeters. Consequently, the displacement generated by vibration is also correspondingly shorter. Therefore, the rectangular through-hole 50 above or below the beam-shaped deformable body 40 is also relatively small, only needing to provide enough space for the beam-shaped deformable body 40 to vibrate vertically.
[0037] In one embodiment of this disclosure, such as Figure 2-5 As shown, when the collision member 30 collides with the fixing ring 20, it is actually the protrusion 31 provided on the beam-shaped deformable body 40 that collides with the fixing ring 20. This disclosure does not limit the shape of the protrusion 31; generally, the protrusion 31 is preferably a semi-circular, semi-elliptical, or polygonal shape. That is, the cross-section of the protrusion 31 may include a semi-circular, elliptical, or polygonal shape.
[0038] In another embodiment of this disclosure, the beam-shaped deformable body 40 is made of a plastic material. The height of the beam-shaped deformable body 40 is, for example, 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, or 0.7 mm. In some embodiments, after the beam-shaped deformable body 40 of the plastic material with this height collides with the impact member 30, its deformation amount is, for example, 0.04 mm, 0.05 mm, or 0.06 mm.
[0039] In one embodiment of this disclosure, the beam-shaped deformable body 40 is made of steel, preferably a steel sheet. Both ends of the steel sheet can be embedded in the retaining ring 20 or the collision member 30. The thickness of the steel sheet is, for example, 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, or 0.3 mm.
[0040] In one embodiment of this disclosure, such as Figure 2-5 As shown, preferably, when the beam-shaped deformable body 40 is disposed on or integrally formed with the fixing ring 20, the long side of the rectangular through hole 50 is parallel to the bottom surface of the beam-shaped deformable body 40 or the bottom surface 22 of the fixing ring 20. When the beam-shaped deformable body 40 is disposed on or integrally formed with the collision member 30, the long side of the rectangular through hole 50 is parallel to the top surface of the beam-shaped deformable body 40 or the top surface 32 of the collision member 30.
[0041] When the beam-shaped deformable body 40 is mounted on the fixed ring 20, the width of the beam-shaped deformable body 40 is greater than the thickness of the sidewall 21 of the fixed ring 20; that is, the beam-shaped deformable body 40 can be cantilevered in the width direction (in the Z-axis direction). When the beam-shaped deformable body 40 is mounted on the collision member 30, the width (distance in the Z-axis direction) of the beam-shaped deformable body 40 is greater than the thickness of the collision member 30.
[0042] In one embodiment of this disclosure, such as Figure 2-5 As shown, a collision member 30 is disposed at one end of the button 60 and connected to the button 60. In one example, the collision member 30 may extend downward from the button along the axial direction I and be formed at the end of the extension. The button 60 may be coaxially disposed with the retaining ring 20, and the button 60 and the retaining ring 20 collide in the travel direction of the button 60, that is, along the axial direction I of the button 60, during the rebound of the button 60.
[0043] The components for reducing the collision noise of button 60 in the various embodiments of this disclosure not only effectively reduce the noise of button 60, but also cleverly utilize the structure of each component to save space and reduce costs.
[0044] like Figure 1 and 6 As shown, this disclosure also provides a vehicle combination switch 100 for placement, for example, near a steering wheel (not shown). Only a portion of the vehicle combination switch is shown in the figure. The vehicle combination switch includes the component 1 described above. A button is located at the end of the vehicle combination switch.
[0045] In this scenario, after the user presses button 60 to its lowest position—that is, after it reaches the limit position of the support and the microswitch—and then releases their finger, the reaction force of the microswitch is transmitted along the guide post, causing button 60 to quickly spring back to the bottom surface of the plastic retaining ring 20 fixed to the main body. The inertial force causes a slight deformation in the beam-shaped deformable body 40 at the bottom of the plastic retaining ring 20, i.e., the cantilever beam. This deformation buffers the collision between button 60 and the plastic retaining ring 20, thus reducing the noise generated during their collision. Finally, button 60 returns to its original position, and the cantilever beam simultaneously recovers its deformation.
[0046] The terminology used herein is for illustrative purposes only and should not be construed as limiting the meaning or scope of this disclosure. As used herein, the singular form may include the plural form unless a specific example is clearly indicated in the context. Furthermore, the expressions “comprising” and / or “including” as used herein do not limit the shapes, numbers, steps, operations, components, elements, and / or groups thereof mentioned, nor do they exclude the appearance or inclusion of one or more other different shapes, numbers, steps, operations, components, elements, and / or groups thereof, or inclusion thereof.
[0047] As used herein, terms such as “first,” “second,” etc., are used to describe various components, assemblies, regions, and / or parts. These terms are used only to distinguish one component, assembly, region, layer, or part from another component, assembly, region, or part. Therefore, the description of a first component, assembly, region, layer, or part may also refer to a second component, assembly, region, or part without departing from the scope of this disclosure.
[0048] The foregoing description of exemplary embodiments of this disclosure is for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit this disclosure to the precise forms disclosed. Many modifications and variations are possible in accordance with the foregoing teachings. The embodiments were chosen and described to explain the principles of this disclosure and its practical application, so that others skilled in the art can utilize this disclosure and various embodiments with various modifications suitable for the particular purpose contemplated. Alternative embodiments will become apparent to those skilled in the art to which this disclosure pertains without departing from the spirit and scope of this disclosure. Therefore, the scope of this disclosure is defined by the appended claims rather than by the foregoing description and the exemplary embodiments described therein.
Claims
1. A component for button noise reduction, characterized in that, include: The shell has an enclosed space; A retaining ring is attached to the housing and has sidewalls and a bottom surface; A collision member is housed within the housing and configured such that its top surface faces the bottom surface of the retaining ring, and one or more protrusions are formed on the top surface of the collision member. A beam-shaped deformable body is disposed on or integrally formed with the fixed ring; or disposed on or integrally formed with the collision member, wherein the beam-shaped deformable body is capable of deforming upon impact with the protrusion. The protrusion is located at the center of the top surface of the collision member relative to the beam-shaped deformable body, or is configured as a strip extending across the entire width of the top surface of the collision member.
2. The component as claimed in claim 1, characterized in that, When the beam-shaped deformable body is provided on the fixed ring or integrally formed with the fixed ring, the beam-shaped deformable body is provided on the side wall of the fixed ring or integrally formed with the side wall, and the bottom surface of the beam-shaped deformable body constitutes part of the bottom surface of the fixed ring. A rectangular through hole is provided on the side wall of the fixed ring above the beam-shaped deformable body.
3. The component as claimed in claim 1, characterized in that, When the beam-shaped deformable body is disposed on or integrally formed with the collision member, the top surface of the beam-shaped deformable body constitutes part of the top surface of the collision member, the protrusion is disposed on the top surface of the beam-shaped deformable body, and a rectangular through hole is provided in the collision member below the beam-shaped deformable body.
4. The component as described in claim 2 or 3, characterized in that, The shorter side of the rectangular through hole is greater than the height of the beam-shaped deformable body.
5. The component as described in any one of claims 1-3, characterized in that, The cross-section of the protrusion may be semi-circular, elliptical, or polygonal.
6. The component as described in any one of claims 1-3, characterized in that, The beam-shaped deformable body is made of plastic material, or the beam-shaped deformable body is made of steel.
7. The component as claimed in claim 2 or 3, characterized in that, The long side of the rectangular through hole is parallel to the bottom or top surface of the beam-shaped deformable body.
8. The component as claimed in claim 6, characterized in that, The width of the beam-shaped deformable body is greater than the thickness of the sidewall of the fixed ring.
9. The component as claimed in claim 6, characterized in that, The collision component is disposed at one end of the button and connected to the button. The button and the fixing ring are coaxially arranged. The button and the fixing ring collide in the travel direction of the button during the rebound process.
10. A vehicle combination switch comprising the components of any one of claims 1-9.