Steering wheel damping device and steering wheel

Abstract

The utility model provides a steering wheel damping device and a steering wheel, the steering wheel damping device comprises a fixing support and a steering wheel framework, the fixing support is at least a part of structure of a safety air bag module, and a damping assembly is arranged between the fixing support and the steering wheel framework; the vibration reduction assembly comprises a connecting piece, a sleeve, an elastic piece, a clamping ring, a spring bushing and a spring, and the connecting piece penetrates through a first through hole of the fixing support and a second through hole of the steering wheel framework to achieve connection of the fixing support and the steering wheel framework; the connecting piece is sleeved with the sleeve, the elastic piece is annular and is arranged on the sleeve of the connecting piece in a sleeved mode, a circle of groove is formed in the periphery of the elastic piece in the circumferential direction, the clamping ring is clamped in the groove in a sleeved mode so that the periphery of the elastic piece can be clamped on the clamping ring in a sleeved mode, and the spring bush is arranged on the connecting piece in a sleeved mode and located on the side, close to the steering wheel framework, of the elastic piece. One end of the spring abuts against the steering wheel framework, and the other end of the spring is used for supporting the elastic piece. The vibration sense is reduced through the vibration reduction assembly, the comfort degree is improved, the structure is simple, and the assembly difficulty is low.

Description

A steering wheel vibration damping device and a steering wheel Technical Field

[0001] This application relates to the field of steering wheel technology, specifically to a steering wheel damping device, and also to a steering wheel. Background Technology

[0002] With the rapid development of the automotive industry, cars have now entered almost every household, becoming an indispensable means of transportation for daily travel. Currently, people have increasingly higher demands for the safety and comfort of cars. As we all know, the steering wheel, as one of the important components of a car, allows the driver to correctly control the car's direction.

[0003] However, due to factors such as uneven road surfaces or curved roads during driving, the car's steering system will experience transmission vibrations. These vibrations will be transmitted to the steering wheel, which will further cause the steering wheel and the airbag module installed on the steering wheel to shake or vibrate, thus affecting the stability and comfort of the car during driving.

[0004] Therefore, how to improve the stability of the steering wheel to enhance driving comfort and reduce assembly difficulty has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] This application provides a steering wheel damping device to solve the technical problem in the prior art of how to improve steering wheel stability, thereby enhancing driving comfort and reducing assembly difficulty. This application also provides a steering wheel using the aforementioned steering wheel damping device.

[0006] This application provides a steering wheel vibration damping device, including: a fixed bracket and a steering wheel frame, wherein the fixed bracket is at least a part of the structure of an airbag module, and a vibration damping component is disposed between the fixed bracket and the steering wheel frame;

[0007] The vibration damping assembly includes a connector, a sleeve, an elastic element, a retaining ring, a spring bushing, and a spring. The connector passes through a first through hole on the fixed bracket and a second through hole on the steering wheel frame to achieve the connection between the fixed bracket and the steering wheel frame.

[0008] The sleeve is fitted onto the connector. The elastic element is annular and fitted onto the sleeve of the connector. A groove is provided around the outer periphery of the elastic element. The retaining ring is fitted into the groove so that the outer periphery of the elastic element is fitted onto the retaining ring. The spring bushing is fitted onto the connector and is located on the side of the elastic element closer to the steering wheel frame. The spring is fitted onto the spring bushing. One end of the spring abuts against the steering wheel frame, and the other end of the spring supports the elastic element.

[0009] Optionally, the connector is provided with a first slot, and the end of the spring bushing near the steering wheel frame is engaged in the first slot.

[0010] Optionally, the end of the spring bushing near the steering wheel frame is provided with an inwardly bent claw, which engages in the first slot.

[0011] Optionally, the spring bushing has an outwardly folded edge at one end near the fixed bracket, which abuts against the elastic element so that the other end of the spring supports the elastic element by abutting against the folded edge.

[0012] Optionally, the radial size of the spring gradually increases from the first end of the spring to the second end of the spring, the first end of the spring being the end closer to the fixed bracket, and the second end of the spring being the end closer to the steering wheel frame.

[0013] Optionally, a preset area is cut on opposite sides of one end of the elastic member to form a plane, and upward protrusions are provided on opposite sides of the retaining ring. The plane is adapted to the inner surface of the protrusion, so that the retaining ring and the elastic member are radially fixed through the contact between the plane and the surface.

[0014] Optionally, the retaining ring has outwardly protruding protrusions on opposite sides of its outer periphery, and the protrusions have second slots for fixing the end of the fixing bracket so that the fixing bracket is fixed to the vibration damping assembly.

[0015] Optionally, a first protrusion is provided on the top surface of the folded edge, and the first protrusion is engaged with a third slot provided on the end face of the elastic member that abuts against the spring bushing.

[0016] Optionally, a plurality of second protrusions are provided circumferentially in the groove, and each second protrusion abuts against a different position on the inner side of the retaining ring to restrict the radial movement of the elastic element relative to the retaining ring.

[0017] This application also provides a steering wheel, the steering wheel including any of the steering wheel damping devices described above.

[0018] Compared with the prior art, this application has the following advantages:

[0019] This application provides a steering wheel vibration damping device, comprising: a fixed bracket and a steering wheel frame, wherein the fixed bracket is at least a partial structure of an airbag module, and a vibration damping component is disposed between the fixed bracket and the steering wheel frame; the vibration damping component includes a connector, a sleeve, an elastic element, a retaining ring, a spring bushing, and a spring, wherein the connector passes through a first through hole on the fixed bracket and a second through hole on the steering wheel frame to connect the fixed bracket and the steering wheel frame; the sleeve is fitted onto the connector, the elastic element is annular and fitted onto the sleeve of the connector, the outer periphery of the elastic element is provided with a circumferential groove, the retaining ring is fitted into the groove so that the outer periphery of the elastic element is fitted onto the retaining ring, the spring bushing is fitted onto the connector and is located on the side of the elastic element closer to the steering wheel frame, the spring is fitted outside the spring bushing, one end of the spring abuts against the steering wheel frame, and the other end of the spring supports the elastic element.

[0020] This application provides a steering wheel vibration damping device, which includes a fixed bracket and a steering wheel frame. The fixed bracket is at least a part of the structure of an airbag module. A vibration damping component is disposed between the fixed bracket and the steering wheel frame, connecting the fixed bracket and the steering wheel frame through the vibration damping component. The vibration damping component can effectively alleviate or reduce the vibration between the airbag module and the steering wheel. The vibration damping component includes a connector, a sleeve, an elastic element, a retaining ring, a spring bushing, and a spring, allowing the airbag module and the steering wheel frame to form a single unit, similar to a larger vibration damping module. This eliminates or absorbs vibrations transmitted from the entire vehicle to the steering wheel, thereby reducing the perceived vibration and improving the driver's comfort during driving. Furthermore, the vibration damping component has a relatively simple structure, higher reliability, reduced assembly difficulty, and lower costs. Attached Figure Description

[0021] Figure 1 is a cross-sectional view of the steering wheel damping device provided in an embodiment of this application.

[0022] Figure 2 is a cross-sectional view of the vibration damping component provided in an embodiment of this application.

[0023] Figure 3 is a schematic diagram of the sleeve set on the connector provided in the embodiment of this application.

[0024] Figure 4 is a schematic diagram of the structure of the elastic element provided in the embodiment of this application.

[0025] Figure 5 is a schematic diagram of the structure of the spring bushing provided in the embodiment of this application.

[0026] Figure 6 is a schematic diagram of the clasp structure provided in an embodiment of this application.

[0027] Figure label:

[0028] 10: Fixed bracket;

[0029] 20: Steering wheel frame; 201: Second through hole;

[0030] 30: Vibration damping component; 301: Connector; 3011: First slot; 3012: Fourth slot; 302: Sleeve;

[0031] 303: Elastic element; 3031: Groove; 3031-1: Second protrusion; 3032: Plane;

[0032] 304: Snap ring; 3041: Boss; 3042: Protrusion; 3042-1: Second snap groove;

[0033] 305: Spring bushing; 3051: Claw; 3052: Folded edge; 3052-1: First protrusion;

[0034] 306: Spring;

[0035] 40: Snap ring. Detailed Implementation

[0036] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific implementations disclosed below.

[0037] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In related technologies, when a car is in motion, the steering system experiences vibrations due to uneven road surfaces or curved roads. These vibrations are transmitted to the steering wheel, which in turn causes the steering wheel and the airbag module mounted on it to vibrate, thus affecting driving stability and comfort.

[0040] Accordingly, this application provides a steering wheel damping device, comprising: a fixed bracket and a steering wheel frame, wherein the fixed bracket is at least a partial structure of an airbag module, and a damping component is disposed between the fixed bracket and the steering wheel frame; the damping component includes a connector, a sleeve, an elastic element, a retaining ring, a spring bushing, and a spring, wherein the connector passes through a first through hole on the fixed bracket and a second through hole on the steering wheel frame to connect the fixed bracket and the steering wheel frame; the sleeve is fitted onto the connector, the elastic element is an annular structure and is fitted onto the sleeve of the connector, the outer periphery of the elastic element is provided with a circumferential groove, the retaining ring is fitted into the groove so that the outer periphery of the elastic element is fitted onto the retaining ring, the spring bushing is fitted onto the connector and is located on the side of the elastic element closer to the steering wheel frame, the spring is fitted outside the spring bushing, one end of the spring abuts against the steering wheel frame, and the other end of the spring supports the elastic element.

[0041] This application provides a steering wheel vibration damping device, which includes a fixed bracket and a steering wheel frame. The fixed bracket is at least a part of the structure of an airbag module. A vibration damping component is disposed between the fixed bracket and the steering wheel frame, connecting the fixed bracket and the steering wheel frame through the vibration damping component. The vibration damping component can effectively alleviate or reduce the vibration between the airbag module and the steering wheel. The vibration damping component includes a connector, a sleeve, an elastic element, a retaining ring, a spring bushing, and a spring, allowing the airbag module and the steering wheel frame to form a single unit, similar to a larger vibration damping module. This eliminates or absorbs vibrations transmitted from the entire vehicle to the steering wheel, thereby reducing the perceived vibration and improving the driving experience. Furthermore, the vibration damping component has a relatively simple structure, improves reliability, reduces assembly difficulty, and lowers costs.

[0042] The following is a detailed description of the steering wheel damping device with reference to the accompanying drawings.

[0043] Figure 1 is a cross-sectional view of the steering wheel damping device provided in an embodiment of this application. Figure 2 is a cross-sectional view of the damping component provided in an embodiment of this application. Figure 3 is a structural schematic diagram of the sleeve fitted onto the connector provided in an embodiment of this application. Figure 4 is a structural schematic diagram of the elastic element provided in an embodiment of this application. Figure 5 is a structural schematic diagram of the spring bushing provided in an embodiment of this application. Figure 6 is a structural schematic diagram of the retaining ring provided in an embodiment of this application.

[0044] As shown in Figures 1-2, this application provides a steering wheel vibration damping device, which includes a fixed bracket 10 and a steering wheel frame 20. The fixed bracket 10 is at least a part of the structure of the airbag module, and a vibration damping component is disposed between the fixed bracket 10 and the steering wheel frame 20. The airbag module is fixed above the fixed bracket 10, that is, the fixed bracket 10 is used to support the airbag module. As a fixing structure for the airbag module, the fixed bracket 10 can provide physical support for the airbag module and plays a key role in ensuring that the airbag module can deploy correctly and quickly in the event of a car collision, which is crucial for ensuring the safety of the occupants of the car. The steering wheel frame 20, as the basic frame of the steering wheel, bears the weight and stress of the entire steering wheel assembly. It provides solid support for the outer covering material of the steering wheel (such as plastic, leather, etc.) and the internal functional components (such as the airbag module, control buttons, etc.).

[0045] During vehicle operation or in the event of a collision, strong vibrations are transmitted into the vehicle interior. A vibration damping component 30 is needed to effectively mitigate these vibrations and impacts. Therefore, a vibration damping component 30 is installed between the fixed bracket 10 and the steering wheel frame 20. This means that the airbag module and the steering wheel frame 20 can be connected via the vibration damping component 30. Furthermore, the vibration damping component 30 effectively reduces or alleviates the vibration between the airbag module and the steering wheel. Specifically, the weight of the airbag module is applied to the vibration damping component 30. Within a certain range, the heavier the airbag module, the better the vibration damping effect, thus improving the driving experience and providing a more comfortable driving environment for the driver.

[0046] As shown in Figures 1-3, the vibration damping component 30 includes a connector 301, a sleeve 302, an elastic element 303, a retaining ring 304, a spring bushing 305, and a spring 306. The connector 301 passes through the first through hole on the fixed bracket 10 and the second through hole 201 on the steering wheel frame 20 to realize the connection between the fixed bracket 10 and the steering wheel frame 20.

[0047] Specifically, the vibration damping component 30 includes a connector 301, a sleeve 302, an elastic element 303, a retaining ring 304, a spring bushing 305, and a spring 306. The fixed bracket 10 has a first through hole, and the steering wheel frame 20 has a second through hole 201 opposite to the first through hole. When the connector 301 passes through both the first and second through holes 201, the vibration damping component 30 can be connected to the fixed bracket 10 via the first through hole. It should be noted that when the connector 301 passes through both the first and second through holes 201, and is engaged with the fourth retaining groove 3012 of the connector 301 by the retaining spring 40 below the steering wheel frame, the vibration damping component can be connected to the steering wheel frame. In other words, when the connector 301 passes through both the first and second through holes 201, and is engaged by the retaining spring 40 below the steering wheel frame, the fixed bracket can be connected to the steering wheel.

[0048] It should be noted that, in this embodiment, the specific number of vibration damping components 30 can be determined according to the actual working conditions. For example, three sets of vibration damping components 30 can be set, or other numbers can be used, as long as they meet the industry and working requirements. The connecting piece 301 can be a screw, a pin, or other structures, which will not be listed here.

[0049] Next, the connections between the various parts of the vibration damping assembly 30 will be described in detail. The vibration damping assembly 30 includes a connector 301, a sleeve 302, an elastic element 303, a retaining ring 304, a spring bushing 305, and a spring 306. As shown in Figure 3, the sleeve 302 is fitted onto the connector 301, and the elastic element 303 has a ring structure and is fitted onto the sleeve 302 of the connector 301.

[0050] As shown in Figure 2, the sleeve 302 is located inside the elastic member 303, meaning the sleeve 302 is directly connected to the connector 301 and is positioned between the connector 301 and the elastic member 303. The sleeve 302 can be made of plastic or fiber composite materials, etc. The sleeve 302 can be fitted onto the front part of the connector 301 by plastic coating, that is, the sleeve 302 wraps around the front part of the connector 301. Of course, other methods can also be used to fit the sleeve 302 onto the front part of the connector 301, such as self-locking nuts, welding, etc. Any method that allows the sleeve 302 to be fitted onto the front part of the connector 301 will suffice; these will not be listed individually here.

[0051] As shown in Figure 3, the sleeve 302 includes an outwardly extending annular portion, which is disposed at the first end of the sleeve 302. The upper end face of the annular portion abuts against the head end of the front section of the connector 301, and the lower end face of the annular portion engages with the inner side of the elastic member 303. It can be understood that the annular portion can abut against the elastic member 303 fitted on the sleeve 302 to prevent the elastic member 303 from moving axially upward along the sleeve 302.

[0052] As shown in Figure 2, the elastic element 303 has a ring structure and is fitted onto the sleeve 302 of the connector 301. That is, the sleeve 302 is located between the connector 301 and the elastic element 303, preventing direct contact between them. Normally, the connector 301 is made of metal, and the elastic element 303 is made of rubber. If the elastic element 303 were directly fitted onto the connector 301, the sulfides in the rubber might corrode the metal. Therefore, a sleeve 302 is needed between the connector 301 and the elastic element 303. The sleeve 302 prevents the sulfides in the rubber of the elastic element 303 from corroding the connector 301. Furthermore, the sleeve 302 reduces wear on the elastic element 303, extending the lifespan of the vibration damping assembly 30.

[0053] The elastic element 303 has a circumferentially circumferentially groove 3031 on its outer periphery. The retaining ring 304 engages within the groove 3031, so that the outer periphery of the elastic element 303 is fitted onto the retaining ring 304. Specifically, the elastic element 303 is a ring structure, comprising an end portion and a central portion. The end portion includes a first end portion and a second end portion opposite to the first end portion. The central portion is located between the first end portion and the second end portion, connecting the first end portion and the second end portion. The central portion has a through hole, making it a hollow structure. The through hole is for accommodating the sleeve 302, i.e., the second end of the sleeve 302 passes through the through hole, allowing the elastic element 303 to be fitted onto the sleeve 302. The structures of the first end portion and the second end portion can be the same or different. For example, the diameters of the first end portion and the second end portion can be equal or unequal, but it should be noted that the diameters of both the first end portion and the second end portion are larger than the diameter of the central portion.

[0054] As shown in Figures 2 and 4, a circumferential groove 3031 is provided on the outer periphery of the elastic member 303. That is, the groove 3031 is located on the outer periphery of the central portion, and it is formed by the first end and the second end. Because the diameters of the first end and the second end are both larger than the central portion located in the middle, the diameters of the opposite ends of the annular elastic member 303 are large, while the diameter of the central portion is small. Consequently, the circumferential groove 3031 is formed on the outer periphery of the central portion.

[0055] The groove 3031 is designed to engage the retaining ring 304. The structure of the retaining ring 304 is adapted to the groove 301 to facilitate engaging the groove within the retaining ring 3031. It should be noted that in the actual installation process, the retaining ring and the fixing bracket are integrally molded with plastic coating, that is, the elastic element is installed inside the retaining ring.

[0056] A plurality of second protrusions 3031-1 are circumferentially spaced within the groove 3031. Each second protrusion 3031-1 abuts against a different position on the inner side of the retaining ring to restrict the radial movement of the elastic member relative to the retaining ring. Specifically, the groove 3031 contains multiple second protrusions 3031-1, which can be evenly and spaced apart within the groove 3031. In this embodiment, the number and position of the second protrusions 3031-1 are not limited, as long as the operational requirements are met.

[0057] Each of the second protrusions 3031-1 abuts against different positions on the inner side of the retaining ring. At this time, each of the second protrusions 3031-1 provides a positioning function for the elastic member 303, ensuring that the elastic member 303 and the retaining ring 304 remain coaxial. It also restricts the radial movement of the elastic member 303 along the retaining ring 304, ensuring that the elastic member is fixed to the inner side of the retaining ring. It should also be noted that the multiple second protrusions 3031-1 are spaced apart. When the elastic member is engaged with the inner side of the retaining ring, a gap exists between the elastic member and the retaining ring. This gap provides cushioning during vehicle vibration, thus reducing vibration.

[0058] Furthermore, as shown in Figures 2 and 6, protrusions 3042 protruding outward are provided on opposite sides of the outer periphery of the retaining ring 304. The protrusions 3042 are provided with a second groove 3042-1, which is used to fix the end of the fixing bracket so that the fixing bracket is fixed on the vibration damping assembly 30.

[0059] Specifically, the outer periphery of the elastic element is installed on the inner side of the retaining ring, that is, the groove 3031 of the elastic element is engaged and fixed with the inner side of the retaining ring 304. The retaining ring 304 has outwardly protruding protrusions 3042 on opposite sides of its outer periphery. Each protrusion 3042 includes a first protruding panel and a second protruding panel, forming a second groove 3042-1 between them. In other words, the second groove 3042-1 is formed by the gap between the first and second protruding panels. The second groove 3042-1 is used to fix the end of the fixing bracket, so that the fixing bracket is fixed to the vibration damping assembly 30. That is, the size of the second groove 3042-1 is adapted to the size of the end of the fixing bracket.

[0060] In this embodiment of the application, the protrusion 3042 includes a first protrusion and a second protrusion, which are disposed opposite to each other on the outer periphery of the retaining ring 304, and the structure of the first protrusion and the structure of the second protrusion are the same.

[0061] The elastic member 303 has a predetermined area cut on its opposite sides at one end to form a plane 3032. The retaining ring has protrusions extending upwards on its opposite sides. The plane 3032 is adapted to the inner surface of the protrusions so that the retaining ring 304 and the elastic member 303 are radially fixed through the contact between the plane 3032 and the surface.

[0062] As shown in Figures 2 and 4, a plane 3032 is provided on one end of the elastic element 303 near the fixed bracket 10. The plane 3032 includes a first plane and a second plane, which are distributed opposite to each other. It is formed by cutting a predetermined area from opposite sides of one end of the elastic element 303, i.e., the end near the fixed bracket 10. It should be noted that the predetermined area can be determined according to specific circumstances, and is not limited here.

[0063] The outer side of the elastic member 303 is designed to engage with the retaining ring 304, as shown in Figure 6. The retaining ring 304 has upwardly protruding bosses 3041 on opposite sides. The inner surface of each boss 3041 is adapted to the plane 3032. The outer periphery of the elastic member 303 passes through the inner side of the retaining ring, and the groove 3031 on the outer periphery of the elastic member 303 abuts against the inner side of the retaining sleeve. The inner surface of the upwardly protruding bosses on the retaining ring 304 contacts the corresponding plane 3032, thereby achieving radial fixation between the retaining ring 304 and the elastic member 303. The number of bosses is equal to the number of planes 3032, and the size and shape of the surfaces are adapted to the bosses.

[0064] As shown in Figures 1-2, the spring bushing 305 is fitted onto the connection 301 and is located on the side of the elastic member 303 near the steering wheel frame 20. The spring 306 is fitted over the spring bushing 305, with one end of the spring 306 abutting against the steering wheel frame 20 and the other end of the spring supporting the elastic member 303.

[0065] In other words, the sleeve 302 is fitted onto the connector 301, the elastic element 303 is fitted onto the sleeve 302 of the connector 301, the outer periphery of the elastic element 303 is mounted on the inner side of the retaining ring 304, the spring bushing 305 is fitted onto the connector 301, and the spring bushing 305 is located on the side of the elastic element 303 closer to the steering wheel frame 20, that is, the spring bushing 305 is located below the sleeve 302, the elastic element 303 and the retaining ring 304.

[0066] The connector 304 is provided with a first slot 3011, and the end of the spring bushing 305 near the steering wheel frame 20 is engaged in the first slot 3011. Specifically, the spring bushing 305 is fitted onto the connector 301, and the spring bushing 305 is located below the elastic member 303, such that the end of the spring bushing 305 near the fixed bracket 10 abuts against the lower end of the elastic member 303, and the end of the spring bushing 305 near the steering wheel frame 20 is engaged in the first slot 3011. Moreover, as shown in Figures 2 and 5, the end of the spring bushing 305 near the steering wheel frame 20 is provided with an inwardly bent claw 3051, which is engaged in the first slot 3011. The claw 3051 is bent inward, and the inwardly bent claw 3051 is engaged in the first slot 3011 on the connector. The structure of the claw 3051 is adapted to the first slot 3011, and the number of claws 3051 is not limited and can be set according to actual needs. Of course, the end of the spring bushing 305 near the steering wheel frame can also be a third protrusion, which can be engaged in the first slot 3011 to connect the spring bushing 305 with the connector.

[0067] The end of the spring bushing 305 near the fixed bracket 20 is used to support the elastic member 303. Specifically, the end of the spring bushing 305 near the fixed bracket 20 is provided with an outwardly folded edge 3052. The folded edge 3052 abuts against the elastic member so that the other end of the spring supports the elastic member 303 by abutting against the folded edge 3052.

[0068] It can be understood that the end of the spring bushing 305 near the fixed bracket 10 is provided with an outwardly folded edge 3052, that is, the folded edge 3052 is indirectly abutted and fixed with the elastic member 303 above, so that the other end of the spring 306 fitted on the spring bushing 305 supports the elastic member 303 by abutting the folded edge 3052.

[0069] As shown in Figures 1-2 and 5, a first protrusion 3052-1 is provided on the top surface of the folded edge 3052. The first protrusion 3052-1 engages with a third slot provided on the end face of the elastic member that abuts against the spring bushing 305. Specifically, the first protrusion 3052-1 is provided on the top surface of the folded edge 3052, that is, the surface near the fixed bracket 10 and facing the fixed bracket 10. The first protrusion 3052-1 protrudes towards the fixed bracket. A third slot is provided on the end face of the elastic member 303 above the spring bushing 305 that abuts against the spring bushing 305. The third slot engages with the first protrusion 3052-1 to achieve a fixed connection between the end of the elastic bushing 305 near the fixed bracket and the elastic member 303.

[0070] In this embodiment, the end of the spring bushing 305 near the fixed bracket 10 supports the elastic member 303 above it, and the claw 3051 on the end of the spring bushing 305 near the steering wheel frame 20 is engaged in the first slot 3011 on the connector 301 so that the spring bushing 305 is connected to the connector 301.

[0071] One end of the spring 306 abuts against the steering wheel frame 20, and the other end is used to support the elastic element 303. The radial dimension of the spring 306 gradually increases from the first end of the spring to the second end of the spring. The first end of the spring is the end closer to the fixed bracket 10, and the second end of the spring is the end closer to the steering wheel frame 20.

[0072] As shown in Figures 1-2, the spring 306 is fitted onto the spring bushing 305. One end of the spring 306 abuts against the steering wheel frame 20, and the other end of the spring bushing supports the elastic element 303. The spring 306 is structured such that its radial diameter gradually increases from its first end to its second end. In other words, the diameter of the spring 306 gradually increases from the end near the fixed bracket 10 or the end near the elastic element 303 towards the end near the steering wheel frame 20. Specifically, the diameter of the first end of the spring 306 is smaller than the diameter of the second end, allowing for a more secure fit of the spring 306 onto the spring bushing 305.

[0073] This application provides a steering wheel vibration damping device, as shown in Figure 1. The device includes a fixed bracket 10 and a steering wheel frame 20. The fixed bracket is at least a part of the airbag module. A damping component 30 is disposed between the fixed bracket 10 and the steering wheel frame 20, connecting them. The damping component 30 effectively alleviates or reduces vibrations between the airbag module and the steering wheel. The damping component 30 includes a connector 301, a sleeve 302, an elastic element 303, a retaining ring 304, a spring bushing 305, and a spring 306. This allows the airbag module and the steering wheel frame 20 to form a single unit, similar to a larger damping module, thereby eliminating or absorbing vibrations transmitted from the entire vehicle to the steering wheel, reducing the perceived vibration, and improving the driving experience. Furthermore, the damping component 30 has a relatively simple structure, improves reliability, reduces assembly difficulty, and lowers costs.

[0074] This application also provides a steering wheel, including the aforementioned steering wheel damping device. The steering wheel damping device includes: a fixed bracket 10 and a steering wheel frame 20. The fixed bracket 10 is at least a partial structure of an airbag module. A damping component 30 is disposed between the fixed bracket 10 and the steering wheel frame 20. The damping component 30 includes a connector 301, a sleeve 302, an elastic element 303, a retaining ring 304, a spring bushing 305, and a spring 306. The connector 301 passes through a first through hole on the fixed bracket 10 and a second through hole 201 on the steering wheel frame 20 to connect the fixed bracket 10 and the steering wheel frame 20. The sleeve 302... The elastic element 303 is annular and is fitted onto the sleeve 302 of the connector 301. A groove 3031 is provided on the outer periphery of the elastic element 303, and a retaining ring 304 is fitted into the groove 3031 so that the outer periphery of the elastic element 303 is fitted onto the retaining ring. The spring bushing 305 is fitted onto the connector 301 and is located on the side of the elastic element 303 closer to the steering wheel frame 20. The spring 306 is fitted onto the spring bushing 305, one end of the spring 306 abuts against the steering wheel frame 20, and the other end of the spring bushing is used to support the elastic element 303.

[0075] The specific implementation of the steering wheel damping device in this embodiment is analogous to the steering wheel damping device in the above embodiment. For details, please refer to the relevant content of the above embodiment, which will not be repeated here.

[0076] It should be noted that although several structures, components, or units for implementing the relevant functions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the specific embodiments of this application, the features and functions of two or more structures, components, or units described above can be embodied in one structure, component, or unit. Conversely, the features and functions of one structure, component, or unit described above can be further divided and embodied by multiple components, structures, or units.

[0077] Furthermore, although the various components of the components or apparatus in this application and the mounting arrangements between them are described in a specific order in the accompanying drawings, this does not require or imply that the components or apparatus must be designed according to that specific component or mounting arrangement, or that all the components shown must be included to achieve the desired result. Additional or alternative components may be omitted, multiple components may be combined into one component to achieve the corresponding function, and / or a component may be decomposed into multiple components to achieve the corresponding function, etc.

[0078] Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

Claims

1. A steering wheel vibration damping device, characterized in that, include: A fixed bracket and a steering wheel frame are provided. The fixed bracket is at least a part of the structure of the airbag module. A vibration damping component is provided between the fixed bracket and the steering wheel frame. The vibration damping component includes a connector, a sleeve, an elastic element, a retaining ring, a spring bushing, and a spring. The connector passes through a first through hole on the fixed bracket and a second through hole on the steering wheel frame to connect the fixed bracket and the steering wheel frame. The sleeve is fitted onto the connector. The elastic element is an annular structure and is fitted onto the sleeve of the connector. A circumferential groove is provided on the outer periphery of the elastic element. The retaining ring is fitted into the groove so that the outer periphery of the elastic element is fitted onto the retaining ring. The spring bushing is fitted onto the connector and is located on the side of the elastic element closer to the steering wheel frame. The spring is fitted outside the spring bushing. One end of the spring abuts against the steering wheel frame, and the other end of the spring supports the elastic element.

2. The steering wheel vibration damping device according to claim 1, characterized in that, The connector is provided with a first slot, and the end of the spring bushing near the steering wheel frame is engaged in the first slot.

3. The steering wheel vibration damping device according to claim 2, characterized in that, The spring bushing has an inwardly bent claw at one end near the steering wheel frame, and the claw engages in the first slot.

4. The steering wheel vibration damping device according to claim 1, characterized in that, The spring bushing has an outwardly folded edge at one end near the fixed bracket. The folded edge abuts against the elastic element so that the other end of the spring supports the elastic element by abutting against the folded edge.

5. The steering wheel vibration damping device according to claim 1, characterized in that, The radial size of the spring gradually increases from the first end of the spring to the second end of the spring. The first end of the spring is the end closer to the fixed bracket, and the second end of the spring is the end closer to the steering wheel frame.

6. The steering wheel vibration damping device according to claim 1, characterized in that, The elastic element has a pre-defined area cut on its two opposite sides to form a plane. The retaining ring has upward protrusions on its opposite sides. The plane is adapted to the inner surface of the protrusion so that the retaining ring and the elastic element are radially fixed through the contact between the plane and the surface.

7. The steering wheel vibration damping device according to claim 1, characterized in that, The outer periphery of the retaining ring has outwardly protruding protrusions on opposite sides, and the protrusions have second slots for fixing the end of the fixing bracket so that the fixing bracket is fixed to the vibration damping assembly.

8. The steering wheel vibration damping device according to claim 4, characterized in that, A first protrusion is provided on the top surface of the folded edge, and the first protrusion is engaged with a third slot provided on the end face of the elastic element that abuts against the spring bushing.

9. The steering wheel vibration damping device according to claim 1, characterized in that, Multiple second protrusions are spaced apart circumferentially within the groove, and each second protrusion abuts against a different position on the inner side of the retaining ring to restrict the radial movement of the elastic element relative to the retaining ring.

10. A steering wheel, characterized in that, Includes the steering wheel damping device as described in any one of claims 1-9.

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