How many components that wiper consists?
The wiper power source comes from the motor, which is the core of the entire wiper system. The quality of the wiper motor is quite high. It uses a DC permanent magnet motor. The wiper motor mounted on the front windshield is generally integrated with the mechanical parts of the worm gear. The role of the worm gear mechanism is to increase the torque, and the output shaft drives the four-bar linkage mechanism. The four-bar linkage mechanism changes the continuous rotation motion to the left-right swing motion.
The wiper motor uses a 3-brush configuration to facilitate shifting. Intermittent time is controlled by an intermittent relay. The wiper is swept in a certain period by utilizing the charge and discharge function of the motor's return switch contact and relay resistance capacitor. The wiper blade is a tool that directly removes rain and dirt from the glass. The wiper strip is pressed against the glass surface by a spring strip, and its lip must match the glass angle in order to achieve the required performance.