| 摘要 |
PURPOSE: A control circuit for spraying the washer liquid of construction equipment is provided to prevent the washer liquid from flowing around a window frame in advance. CONSTITUTION: A control circuit for spraying the washer liquid of construction equipment comprises a top washer liquid jet motor(6), a lower part washer liquid jet motor(7), an electronic control unit part(10), a lower part washer motor driver(60), and a washer driving switch part(80). The top and the bottom washer liquid jet motor are installed at a top and a bottom window of a window frame in order to spray the washer liquid. The electronic control unit part controls the drive of the top washer liquid jet motor and the lower part washer liquid jet motor. The lower part washer motor driver drives the lower part washer liquid jet motor. The washer driving switch part produces an input signal driving the lower part washer liquid jet motor. |
