The wiper motor is driven by the motor, and the rotary motion of the motor is converted into the reciprocating motion of the wiper arm through the link mechanism, so as to realize the wiper action. Generally, the wiper can work by turning on the motor. The current of the motor controls the speed of the motor and then the speed of the scraper arm.
The wiper of the car is driven by the wiper motor, and the motor speed of several gears is controlled by the potentiometer.
The rear end of the wiper motor has a small gear transmission enclosed in the same housing, which reduces the output speed to the required speed. This device is commonly known as the wiper drive assembly. The output shaft of the assembly is connected to the mechanical device at the end of the wiper, and the reciprocating swing of the wiper is realized by the fork drive and the spring return.