The invention discloses a trigger structure for a safety belt and a safety belt retractor with the trigger structure. The trigger structure for the safety belt comprises a magnet and a Hall sensor, the magnet is arranged on the side, facing the coil spring, of a coil spring cover plate. The Hall sensor is arranged on the base; a first groove is formed in the base; under the action of the coil spring, the magnet moves along the first groove; when the magnet is opposite to the Hall sensor, the magnet triggers the Hall sensor; under the driving action of the motor, when the magnet moves along thefirst groove and reaches the limit position of the coil spring, the magnet is opposite to the Hall sensor, so that the Hall sensor is triggered, the motor is stopped, and the coil spring is preventedfrom being damaged and exceeding the limit position of the coil spring to be damaged.
本发明公开了一种安全带用触发结构及具有其的安全带卷收器,其中,安全带用触发结构包括磁铁和霍尔传感器,所述磁铁设置于卷簧盖板朝向所述卷簧的一侧,所述霍尔传感器设置于底座上,所述底座上设有第一凹槽,在卷簧的作用下,所述磁铁沿着所述第一凹槽移动,当所述磁铁与所述霍尔传感器相对时,所述磁铁触发所述霍尔传感器,在电机马达的驱动作用下,当磁铁沿着第一凹槽运动时,当达到卷簧的极限位置时,磁铁与霍尔传感器相对,从而触发霍尔传感器,使得电机马达停止,防止卷簧被损害,超过卷簧的极限位置而损害卷簧的现象出现。
Trigger structure for safety belt and safety belt retractor with trigger structure
一种安全带用触发结构及具有其的安全带卷收器
2020-06-02
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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