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Steering wheel damping module

A shock-absorbing module and steering wheel technology, which is applied to steering control, vehicle safety arrangements, handwheels and other directions installed on the car, can solve the problems of increased difficulty in design, small inner space of the steering wheel, and insufficient air bag shape, etc., to achieve Conducive to frequency adjustment, optimized structure design, and good protection performance

Pending Publication Date: 2019-07-02
YANFENG AUTOMOTIVE SAFETY SYST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the small internal space of the steering wheel, the structure of the fixed balance weight is complicated. Due to the limitation of the internal space of the steering wheel, the structural layout of the shock absorber is difficult, which increases the difficulty of the design and greatly increases the cost.
In addition, when the shock absorber structure cooperates with other components, it is easy to cause air leakage, resulting in the air bag being not full and unable to protect the occupants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , the present invention is a steering wheel shock absorbing module, comprising an air bag folding assembly, a shock absorbing unit and a housing assembly, the air bag folding assembly 4 and the housing assembly 3 are fastened and connected by studs, and the shock absorbing unit is fixed Below the housing assembly 3, the shock absorber unit includes a gas generator 2 and a shock absorber 1, the gas generator 2 is arranged in the through hole of the shock absorber 1, and the frequency of the gas generator 2 and the shock absorber 1 is adjusted The gas generator 2 is used as the counterweight of the shock absorber unit, and the frequency adjustment is performed together with the shock absorber 1 .

[0027] see figure 2 with image 3 , the shock absorber 1 includes a housing, a frequency regulator 14, and a sealing structure 13, one end of the frequency regulator 14 is embedded in the housing, the other end of the frequency regulator 14 is connected to the g...

Embodiment 2

[0032] During the detonation process of the gas generator 2, the pressure inside the air bag needs to be maintained, and the sealing performance plays a crucial role in the occupant protection performance. The sealing structure 13 can be a sealing groove or a sealing ring. There are two sealing structures 13, one is located at the contact position between the shock absorber 1 and the shell assembly 3 plane, and the other is located at the contact position between the shock absorber 1 and the gas generator. The contact position of the arc surface of the gas generator 2 to ensure the sealing performance of the gas generated by the gas generator 2.

[0033] see Figure 4 , the shock absorber 1 and the housing assembly 3 are closely attached. In order to ensure the sealing performance of the product, the contact position between the sealing structure 13 and the housing assembly 3 is provided with a sealing rib 131, and the sealing rib 131 is higher than that of the housing. The p...

Embodiment 3

[0036] see Image 6 , the lower housing 12 of the shock absorber 1 is provided with a step structure 121, and the corresponding sealing structure 13 is also provided with a raised structure, the step structure 121 is located on both sides of the frequency regulator 14, and the step structure 121 is attached to the gas generator combine. In this example, the frequency adjuster 14 is a silicone head, which is arranged along the axial direction of the gas generator 2 and has a symmetrical structure, and the number of the silicone heads is four or more.

[0037] When the frequency of the damping unit is adjusted, the step structure 121 supports the gas generator 2. At the moment when the gas generator 2 explodes, the gas generator 2 receives a large force while generating gas, and the gas generator 2 is impacted by the gas and Hitting the stepped structure 121, the stepped structure 121 acts as a buffer to prevent the gas generator 2 from directly hitting the shell, causing the s...

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PUM

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Abstract

The invention relates to the technical field of passive safety devices, in particular to a steering wheel damping module. The steering wheel damping module comprises an air bag folding assembly, a damping unit and a housing assembly, wherein the damping unit is fixedly arranged below the housing assembly and comprises a gas generator and a damper; the gas generator is arranged in a through hole ofthe damper and is connected with frequency regulators of the damper. Compared with the prior art, the gas generator is used as a balancing weight; the damper and the gas generator are directly connected by the frequency regulators and are jointly subjected to frequency regulation, so that the damping effect is realized, structural design is optimized, and the performance of a product is improvedin a limited space. The steering wheel damping module disclosed by the invention has the advantages of simple structure, good stability and facilitation for frequency regulation; besides, a stepped structure and a sealing structure are added on the damper to realize better protecting performance.

Description

technical field [0001] The invention relates to the technical field of passive safety devices, in particular to a steering wheel damping module. Background technique [0002] As people's requirements for car driving comfort are getting higher and higher, the steering wheel shock absorber has become an indispensable part. The main function of the shock absorber is to stop the vibration transmitted to the steering wheel through the steering column or other vehicle components. The shock absorber is placed in the steering wheel, so that the vibration of the car is transferred from the steering wheel to the shock absorber, thereby eliminating or absorbing the vibration generated on the structure and improving driving comfort. [0003] At present, more shock absorbers are composed of structures such as balance weights, elastic bodies and fixed brackets. Structures such as balance weights are connected to the steering wheel through fixed brackets, and frequency adjustment is perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/11B60R21/203
CPCB62D1/11B60R21/2032
Inventor 于丹红王琴尹复兴贾永幸何文
Owner YANFENG AUTOMOTIVE SAFETY SYST CO LTD
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