| 摘要 |
A power window anti-pinch sensor, characterized in that, at least two capacitors and sensor detecting circuits are provided on the surface of the top edge of the window glass (13); the most top capacitor is the main detecting capacitor C1, and the lower capacitor is the auxiliary detecting capacitor C2. The main detecting capacitor C1 and the auxiliary detecting capacitor C2 detect whether human body approaches or contacts the top edge of the window glass (13), and the signals of capacitance change generated from the human body approaching are detected by the main detecting capacitor C1 and the auxiliary detecting capacitor C2; the signals are transmitted to the sensor detecting circuits, which generate control signals controlling actions of the lifting motor of the power window based on the detected signals of change from the main detecting capacitor and the auxiliary detecting capacitor. The structure of the sensor is simple, and it is able.to achieve the anti-pinch function with zero pinching force which cannot be achieved by the existing anti-pinch sensor, which detects the current going through the lifting motor or the lifting position of the window glass (13). |
