| 摘要 |
PURPOSE: The spring is applied and the DC(Direct Current) motor of the small capacity can be used. Therefore, the cost of the DC motor is reduced. CONSTITUTION: A monitor driving device a car comprises a DC motor(130), a gear module(140), a spring(110), and a damper(120). The DC motor is mechanically combined with a monitor(200). It longs and module is mechanically combined with the DC motor in the monitor. It longs and it changes the torque of the DC motor into vertical motion and module transfers monitor to the top and bottom. The spring assists the driving force of the DC motor. The damper reduces the elasticity and repulsive power of the spring. |
