Steering wheel switch with novel mute structure

By using silicone pads and pre-pressed ring structures in the steering wheel switch, combined with the unique raised design, the existing steering wheel switch noise and discomfort are solved, achieving a more silent and comfortable user experience.

CN222462675UActive Publication Date: 2025-02-11TRW AUTOMOTIVE COMPONENTS SUZHOU
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202323283744.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-04
Publication Date
2025-02-11
Estimated Expiration
2033-12-04

AI Technical Summary

Technical Problem

The existing steering wheel switches are prone to noise during use, affecting the driver's feelings, and the impact sound generated by pressing will be fed back to the hands, causing discomfort.

Method used

A new silent structure steering wheel switch was designed, using silicone pads and pre-pressed ring structures, which reduces the pre-pressure of the pressing keys, and reduces the contact area of ​​the snapping through the unique raised structure, reducing the impact during rebound. Voice.

Benefits of technology

It effectively reduces the pre-pressure of the pressing key and the impact sound during rebound, improves the driver's experience and reduces the impact of noise.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222462675U_ABST
    Figure CN222462675U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel steering wheel switch with a mute structure, which comprises a mounting shell, a function key and a bottom cover plate, a circuit board is fixedly mounted at the top of the bottom cover plate, a silica gel pad is arranged on one surface, far away from the bottom cover plate, of the circuit board, a pressing rod is arranged at the top of the silica gel pad, and the top of the pressing rod is in contact with the bottom of the function key. A pressing key is integrally arranged at the top of the silica gel pad, and a pre-pressing circular ring is integrally arranged at the top of the pressing key. According to the utility model, the structure is simple, the specific pre-pressing circular ring structure of the silica gel pad reduces the pre-pressing force of the pressing key on the premise of ensuring the enough pre-pressing amount of the pressing key, ensures that the impact sound between the plastic pressing rods does not exist in the shaking and bumping process of the switch, reduces the pre-pressing force of the pressing key, and ensures that the small pre-pressing force does not generate the impact sound in the rebounding process of the key. The sound generated when the pressing key rebounds and impacts the pressing rod is effectively reduced, the unique protruding structure effectively reduces the buckle contact area, and the impact sound generated when the key rebounds is further reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a steering wheel switch with a novel silent structure. Background Art

[0002] A car steering wheel is a wheel-shaped device that controls the direction of travel. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque and then transmit it to the steering shaft.

[0003] Today, some functional switches are often installed on car steering wheels to provide other auxiliary functions for the driver. Existing steering wheel switches often produce some noise during use. The reason is that most of them are the impact sounds between the buttons and the plastic parts when the buttons are pressed and rebounded. Although these sounds are very small, they sometimes still affect the driver's feelings. Moreover, the impact sound caused by pressing will also be fed back to the driver's hands, causing corresponding discomfort.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] The purpose of the utility model is to provide a steering wheel switch with a novel silent structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel steering wheel switch with a silent structure comprises a mounting shell, a function key is mounted on the top of the mounting shell, a bottom cover is provided at the bottom of the mounting shell, the bottom cover is fixedly mounted on the bottom of the mounting shell by mounting nails, a circuit board is fixedly mounted on the top of the bottom cover, a silicone pad is provided on the side of the circuit board away from the bottom cover, a pressing rod is provided on the top of the silicone pad, the top of the pressing rod is in contact with the bottom of the function key, a pressing key is integrally provided on the top of the silicone pad, and a pre-pressure ring is integrally provided on the top of the pressing key.

[0008] Furthermore, a plug-in slot is provided on the top of the mounting shell, and the plug-in slot is arranged opposite to the push key on the silicone pad. The function key includes a push block, and a plug-in frame is fixedly installed on the bottom of the push block. The bottom of the plug-in frame is sleeved on the outside of the plug-in slot. A push column is provided inside the plug-in frame, and the top end of the push column is fixedly installed on the bottom of the push block.

[0009] Furthermore, a buckle groove is provided on the side wall of the plug-in frame, a protrusion is provided on the inner bottom wall of the buckle groove, a buckle block is provided on the outer side wall of the plug-in groove, and a groove is provided on the bottom of the buckle block.

[0010] Furthermore, a through hole is provided on the top of the plug-in frame for the pressing column to pass through.

[0011] Furthermore, a mounting frame is integrally provided on a side wall at one end of the mounting shell.

[0012] Furthermore, a socket is provided on the installation shell and is arranged opposite to the pressing key, and the bottom end of the pressing column passes through the socket.

[0013] Furthermore, a wiring frame is installed at the bottom of one end of the circuit board facing the mounting frame, a receiving groove is opened at the top of one end of the bottom cover plate facing the mounting frame, the wiring frame is clamped in the receiving groove, and a contact is provided on the top of the circuit board, and the contact is arranged opposite to the push button.

[0014] Furthermore, a fixing hole is provided on the bottom cover plate, and the mounting nail is arranged through the fixing hole.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, and the unique pre-stress ring structure of the silicone pad ensures that the pre-stress of the press key is reduced under the premise of sufficient pre-stress. Compared with the traditional structure, the pre-stress amount of the press key has not changed, and is still maintained at 0.3mm, ensuring that there is no impact sound between the plastic press rods during the shaking and bumping of the switch. Although the pre-stress amount has not changed, the material on the top of the silicone is reduced by the pre-stress ring structure, and the material squeezed during pre-stressing is reduced, thereby reducing the pre-stress of the press key. The smaller pre-stress will effectively reduce the sound of the press key rebounding and hitting the press rod during the key rebound process. At the same time, the unique raised structure of the utility model effectively reduces the contact area of ​​the buckle, further reducing the impact sound when the key rebounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0018] Figure 2 This is an exploded view of a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0019] Figure 3 It is a front structural schematic diagram of a function key in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the bottom structure of a function key in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a plug-in block in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0022] Figure 6 It is a structural schematic diagram of an installation shell in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the bottom structure of a mounting shell in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0024] Figure 8 It is a structural schematic diagram of a silicone pad in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0025] Fig. 9 It is a structural schematic diagram of a push button in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0026] Fig.10 It is a schematic diagram of the bottom structure of a circuit board in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0027] Fig.11 It is a schematic diagram of the top structure of a circuit board in a steering wheel switch with a novel silent structure according to an embodiment of the utility model;

[0028] Fig.12 This is a structural schematic diagram of a bottom cover plate of a steering wheel switch with a new silent structure according to an embodiment of the utility model.

[0029] Fig.13 The present invention is a schematic diagram of the bottom structure of a bottom cover plate of a steering wheel switch with a novel silent structure according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] 1. Mounting shell; 2. Function keys; 3. Bottom cover; 4. Circuit board; 5. Silicone pad; 6. Press rod; 7. Mounting nail; 8. Press block; 9. Plug-in frame; 91. Through hole; 10. Buckle groove; 11. Protrusion; 12. Press column; 13. Plug-in groove; 14. Buckle block; 15. Groove; 16. Mounting frame; 17. Socket; 18. Press key; 19. Pre-loaded ring; 20. Wiring frame; 21. Contact; 22. Receiving groove; 23. Fixing hole. DETAILED DESCRIPTION

[0032] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0033] See also Figure 1-2 According to an embodiment of the utility model, a steering wheel switch with a new silent structure includes a mounting shell 1, a function key 2 is mounted on the top of the mounting shell 1, a bottom cover plate 3 is provided at the bottom of the mounting shell 1, the bottom cover plate 3 is fixedly mounted on the bottom of the mounting shell 1 by mounting nails 7, a circuit board 4 is fixedly mounted on the top of the bottom cover plate 3, a silicone pad 5 is provided on the side of the circuit board 4 away from the bottom cover plate 3, a pressing rod 6 is provided on the top of the silicone pad 5, and the top of the pressing rod 6 contacts the bottom of the function key 2. The mounting shell 1 is mounted on the steering wheel of the car, and the circuit board 4 is connected to the control system of the car, the corresponding function key is pressed through the function key 2, and the silicone pad 5 is pressed through the pressing rod 6, and the silicone pad 5 finally presses the circuit board 4 to realize the issuance of the circuit board 4 instruction.

[0034] See also Figure 3-9 In order to reduce the sound produced by the pressing rod 6 when pressing the silicone pad 5, in this embodiment, a pressing key 18 is integrally provided on the top of the silicone pad 5, and a pre-stressing ring 19 is integrally provided on the top of the pressing key 18. The unique pre-stressing ring 19 structure of the silicone pad 5 ensures that the pre-stress of the pressing key 18 is reduced under the premise of sufficient pre-stressing amount. Compared with the traditional structure, the pre-stressing amount of the pressing key 18 does not change and is still maintained at 0.3mm, ensuring that there is no collision sound between the plastic pressing rods 6 during the shaking and bumping process of the switch. Although the pre-stressing amount does not change, the material on the top of the silicone is reduced by the pre-stressing ring 19 structure, and the material squeezed during pre-stressing is reduced, thereby reducing the pre-stress of the pressing key 18. The smaller pre-stress will effectively reduce the sound of the pressing key 18 rebounding and hitting the pressing rod 6 during the key rebound process.

[0035] In order to facilitate the installation of the function key 2 on the top of the installation shell 1, in this embodiment, the top of the installation shell 1 is provided with a plug-in slot 13, which is arranged opposite to the push key 18 on the silicone pad 5. The function key 2 is composed of a plurality of push blocks 8, and a plug-in frame 9 is fixedly installed at the bottom of the push block 8. The bottom of the plug-in frame 9 is sleeved outside the plug-in slot 13, and a push column 12 is arranged inside the plug-in frame 9. The top end of the push column 12 is fixedly installed at the bottom of the push block 8. The push block 8 is limitedly installed by the mutual cooperation between the plug-in frame 9 and the plug-in slot 13, and the push block 8 presses the push key 18 through the push column 12 and the push rod 6.

[0036] In order to reduce the sound between the pressing key 18 and the pressing rod 6 and the pressing column 12 when the pressing key 18 rebounds, in this embodiment, a buckle groove 10 is provided on the side wall of the plug-in frame 9, a protrusion 11 is provided on the inner bottom wall of the buckle groove 10, a buckle block 14 is provided on the outer side wall of the plug-in groove 13, and a groove 15 is provided at the bottom of the buckle block 14. The contact area between the buckle groove 10 and the buckle block 14 in the traditional structure is large, and the unique protrusion 11 structure of the utility model effectively reduces the buckle contact area, and further reduces the impact sound when the key rebounds.

[0037] In order to facilitate assembly and disassembly between the pressing block 8 and the plug-in frame 9, in this embodiment, a through hole 91 for the pressing column 12 to pass through is opened on the top of the plug-in frame 9, and the pressing column 12 is arranged in a cross column shape.

[0038] In order to facilitate the installation of the mounting shell 1 on the steering wheel, in this embodiment, a mounting frame 16 is integrally provided on a side wall of one end of the mounting shell 1 .

[0039] In order to facilitate the contact between the pressing column 12 and the pressing key 18 , in this embodiment, a plug hole 17 arranged opposite to the pressing key 18 is opened on the mounting shell 1 , and the bottom end of the pressing column 12 passes through the plug hole 17 .

[0040] To facilitate the installation of the circuit board 4, in the present embodiment, a wiring frame 20 is installed at the bottom of one end of the circuit board 4 facing the mounting frame 16, and a receiving groove 22 is provided at the top of one end of the bottom cover plate 3 facing the mounting frame 16. The wiring frame 20 is clamped in the receiving groove 22, and a contact 21 is provided on the top of the circuit board 4, and the contact 21 is arranged opposite to the push button 18.

[0041] In order to facilitate the disassembly and installation of the bottom cover plate 3 , in this embodiment, a fixing hole 23 is opened on the bottom cover plate 3 , and the installation nail 7 is arranged through the fixing hole 23 .

[0042] Through the above-mentioned scheme of the utility model, the utility model has a simple structure. The unique pre-stressing ring 19 structure of the silicone pad 5 ensures that the pre-stressing amount of the press key 18 is sufficient under the premise of reducing the pre-stressing amount of the press key 18. Compared with the traditional structure, the pre-stressing amount of the press key 18 does not change and is still maintained at 0.3mm, ensuring that there is no impact sound between the plastic press rod 6 during the shaking and bumping process of the switch. Although the pre-stressing amount does not change, the material on the top of the silicone is reduced by the pre-stressing ring 19 structure, and the material squeezed during pre-stressing is reduced, thereby reducing the pre-stressing amount of the press key 18. The smaller pre-stressing amount will effectively reduce the sound of the press key 18 rebounding and hitting the press rod 6 during the key rebounding process. At the same time, the unique protrusion 11 structure of the utility model effectively reduces the contact area of ​​the buckle, and further reduces the impact sound when the key rebounds.

[0043] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of silent steering wheel switch, comprising a mounting shell (1), characterized in that: The top of the mounting shell (1) is provided with a function key (2), the bottom of the mounting shell (1) is provided with a bottom cover plate (3), the bottom cover plate (3) is fixedly mounted on the bottom of the mounting shell (1) by means of mounting pins (7), the top of the bottom cover plate (3) is fixedly mounted with a circuit board (4), the side of the circuit board (4) away from the bottom cover plate (3) is provided with a silicone pad (5), the top of the silicone pad (5) is provided with a pressing rod (6), the top of the pressing rod (6) is in contact with the bottom of the function key (2), the top of the silicone pad (5) is integrally provided with a pressing key (18), and the top of the pressing key (18) is integrally provided with a pre-pressing ring (19).

2. A new type of silent steering wheel switch according to claim 1, characterized in that: The top of the mounting shell (1) is provided with a plug-in slot (13), and the plug-in slot (13) is arranged opposite to the push button (18) on the silicone pad (5). The function key (2) includes a push block (8), and a plug-in frame (9) is fixedly installed at the bottom of the push block (8). The bottom of the plug-in frame (9) is sleeved outside the plug-in slot (13). A push column (12) is provided inside the plug-in frame (9), and the top end of the push column (12) is fixedly installed at the bottom of the push block (8).

3. A new type of silent steering wheel switch according to claim 2, characterized in that: A buckle groove (10) is provided on the side wall of the plug-in frame (9), a protrusion (11) is provided on the inner bottom wall of the buckle groove (10), a buckle block (14) is provided on the outer side wall of the plug-in groove (13), and a groove (15) is provided at the bottom of the buckle block (14).

4. A new type of silent steering wheel switch according to claim 2 or 3, characterized in that: The top of the plug-in frame (9) is provided with a through hole (91) for the pressing column (12) to pass through.

5. A new type of silent steering wheel switch according to claim 4, characterized in that: A mounting frame (16) is integrally provided on a side wall at one end of the mounting shell (1).

6. A new type of silent steering wheel switch according to claim 5, characterized in that: The installation shell (1) is provided with a plug hole (17) arranged opposite to the pressing key (18), and the bottom end of the pressing column (12) is arranged to pass through the plug hole (17).

7. A new type of silent steering wheel switch according to claim 1 or 2 or 3 or 5 or 6, characterized in that: A wiring frame (20) is installed at the bottom of one end of the circuit board (4) facing the mounting frame (16), a receiving groove (22) is provided at the top of one end of the bottom cover plate (3) facing the mounting frame (16), the wiring frame (20) is clamped in the receiving groove (22), and a contact (21) is provided at the top of the circuit board (4), and the contact (21) is arranged opposite to the push button (18).

8. The novel silent steering wheel switch according to claim 7 is characterized in that: The bottom cover plate (3) is provided with a fixing hole (23), and the mounting nail (7) is arranged through the fixing hole (23).