| 摘要 |
PURPOSE: An electric parking brake is provided to stably move magnet without shaking through the improvement of the assembling structure of the magnet and a hole sensor. CONSTITUTION: An electric parking brake comprises a power conversion device, and a sensor unit(40). The power conversion device receives the torque from a motor, converts it into linear movement and transfers it to a parking cable. The sensor unit measures the braking power applied to the parking cable. The sensor unit comprises a magnet housing(50), a sensor housing(41), a sensor plate, and a second elastic member(44). The magnet housing holds a first elastic member(46) and a magnet(51). The magnet housing comprises a magnet holding part(52). The magnet holding part is upwards protruded so that the magnet can be held. The sensor housing holds the magnet housing and comprises a hole sensor installed over the magnet. The sensor housing comprises an elastic support. The elastic support elastically supports both sides of the magnet holding part. The sensor plate is connected to the sensor housing and supports the compression force of the elastic member. The second elastic member is installed between the sensor plate and the magnet housing and elastically supports the magnet housing. |
