Automobile steering wheel vibration reduction structure

Abstract

The invention discloses an automobile steering wheel vibration reduction structure which comprises a metal framework and an air bag module, at least two vibration reduction units are arranged on the metal framework, connecting pins are inserted into the vibration reduction units respectively, the upper ends of the connecting pins are connected with the air bag module, and the air bag module servesas a balancing weight through the vibration reduction units to achieve the effects of energy absorption and vibration reduction. The vibration reduction unit comprises a vibration reduction sleeve, abuckle and a vibration reduction spring, the vibration reduction sleeve is embedded and clamped in a corresponding mounting hole in the metal framework, the buckle sleeves the connecting pin and is embedded and clamped in the vibration reduction sleeve, the vibration reduction spring sleeves the upper part of the connecting pin, and the lower end of the vibration reduction spring is clamped on the buckle; and the upper end of the connecting pin is inserted into a supporting plate of the airbag module and is clamped and fixed through a torsional spring. The structure can integrate vibration reduction and horn functions, achieves good vibration reduction and noise reduction effects in a limited space, and facilitates platform arrangement of products.

Description

technical field [0001] The invention relates to the field of automobile steering wheels, in particular to an automobile steering wheel vibration damping structure. Background technique [0002] As the market's requirements for automotive performance are getting higher and higher, OEMs are paying more and more attention to the NVH performance of their products. Steering wheel vibration and noise directly affect the driver's driving experience and comfort. Therefore, the steering wheel adds a vibration-damping structure and integrates A horn mechanism that effectively reduces contact noise is of great significance for vibration control and noise reduction. [0003] More damping structures are usually formed by adding a counterweight that is frequency-adjusted by an elastic body in the steering wheel to absorb the energy when the steering wheel vibrates. However, the vibration reduction effect is limited, and it is difficult to suppress low-frequency and small-amplitude vibrat...

AI Technical Summary

Problems solved by technology

However, the vibration reduction effect is limited, and it is difficult to suppress low-frequency and small-amplitude vibrations

At the same time, the mass of the counterweight is large and the fixing structure is complicated. Due to the small space inside the steering wheel, the structural layout will be difficult and the cost will be high.

[0004] Some hook-type connection structures can limit the travel of the speaker, but the sound of the speaker rebounding and impacting is loud, which will cause customer dissatisfaction

Images