PROXIMITY SENSOR AND KEYLESS ENTRY DEVICE INCLUDING THE SAME

摘要

In a proximity sensor including a circuit board on which a detection circuit is printed, and a first drive electrode and a lock electrode mounted on one surface of the circuit board and electrically connected to the detection circuit, the first planar drive electrode and the planar lock electrode are formed in a standing manner on one surface of the circuit board to face each other. A second planar drive electrode and a planar unlock electrode are formed in a standing manner on the other surface of the circuit board to face each other. The proximity sensor is used in a keyless entry device of vehicle, and the controller that controls driving of an actuator for locking or unlocking a vehicle door based on detection of the proximity sensor determines that the proximity sensor is turned on when decrease in output of the proximity sensor exceeds a predetermined threshold value.

主权项

1. A proximity sensor comprising:
a circuit board on which a detection circuit is printed; and a first drive electrode and a first detection electrode which are mounted on one surface of the circuit board and electrically connected to the detection circuit, wherein the first planar drive electrode and the first planar detection electrode are formed in a standing manner on one surface of the circuit board to face each other.