A vibration and noise reduction structure of a steering wheel system comprises a steering wheel framework and a driver air bag, a plurality of vibration reduction units are installed on the steering wheel framework, and an air bag shell of the driver air bag is elastically connected with the steering wheel framework in a clamped mode through a clamping spring and the vibration reduction units. Abnormal vibration borne by a steering wheel is transmitted to a driver air bag through the vibration reduction unit, and therefore the energy absorption and vibration reduction effects are achieved through the driver air bag. A plurality of conductive elastic sheets is fixed on the bottom surface of the air bag shell through a supporting ring arranged in the air bag shell, the conductive elastic sheets form a conductive path through the supporting ring, and one of the conductive elastic sheets is provided with a plugging sheet; gaps are reserved between the outer ends of the conductive elastic pieces and the bottom face of the air bag shell and correspond to conductive contacts arranged on the steering wheel framework in a one-to-one mode. The invention has the beneficial effects that the vibration damping performance of the product can be improved in a limited space; the structure is simple, cost is low and weight is light; the multi-frequency instant impact force of the horn conductive metal unit can be buffered, and the impact noise is reduced.
一种方向盘系统减振降噪结构,包括方向盘骨架和驾驶员气囊,在方向盘骨架上安装有多个减振单元,所述驾驶员气囊的气囊壳体通过一个卡簧和多个减振单元与方向盘骨架弹性卡接,用于将方向盘承受的异常振动通过减振单元传递给驾驶员气囊,从而通过驾驶员气囊起到吸能减振作用;在气囊壳体底面通过设在气囊壳体内的撑圈固定有多个导电弹片,导电弹片通过撑圈形成导电通路并在其中一个导电弹片上设有接插片;导电弹片外端与气囊壳体底面之间留有间隙并与设在方向盘骨架上的导电触点一一对应。有益效果是:能够在有限空间内提高产品减振性能;结构简单,成本低、重量小;能够缓冲喇叭导电金属单元的多频次瞬间撞击力,降低撞击声噪音。
Vibration and noise reduction structure of steering wheel system
一种方向盘系统减振降噪结构
2021-05-14
Patent
Electronic Resource
Chinese
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