| 摘要 |
PROBLEM TO BE SOLVED: To eliminate work for disassembling a part of an electric valve driving device and to measure insulation resistance safely and surely in a short time in insulation resistance measurement of a motor coil of the electric valve driving device.SOLUTION: An electric valve driving device 1 for driving a valve by a motor 2 via a gear train includes a device body 3 having: a mechanism component accommodation part 4 for accommodating the gear train and a sensor 9; an electric/electronic component accommodation part 14 for accommodating a control circuit board 13 to which the sensor 9 is connected; and a terminal block accommodation part 19 for accommodating an external terminal block 21 to which the electric/electronic components are connected. In the electric/electronic component accommodation part 14, an electromagnetic switch 15 is provided for controlling power to the motor 2, one end of wiring for insulation resistance measurement is connected to a motor connection side of the electromagnetic switch 15, and the other end of the wiring for insulation resistance measurement is connected to the terminal block 24 for insulation resistance measurement provided at the terminal block accommodation part 19, so that the insulation resistance of the motor 2 can be measured from the terminal block accommodation part side. |
