BAIXIANG MOTOR CO.,LTD.

Wiper motor early use of parallel or multiple excitation DC motor, complex structure, high cost. At present, permanent magnet DC motor is almost used. The power of the wiper motor is generally 4 ~ 150W, of which most of the motors below 10W drive a brush blade; Motors above 15W drive two identical blades. In order to reduce the volume of the motor, improve the output power of the motor, the motor itself speed can not be too low, generally designed for 2000 ~ 2500R/min, and then through the mechanical deceleration device to make the motor speed to the specified speed of technical conditions. The gear ratio of the reducer is generally in I = 40 ~ 70, using a worm gear deceleration. Usually the motor and the reducer are made into one. Wiper power source from the motor, it is the core of the whole wiper system. The quality requirement of wiper motor is quite high. It uses DC permanent magnet motor, installed on the front windshield wiper motor and turbine worm mechanical part of the general made into one. The function of the turbine-worm mechanism is to slow down and increase torsion, and its output shaft drives the four-link mechanism, through which the continuous rotation motion is changed to the left-right swing motion. Wiper motor adopts three brush structure to facilitate speed change. The intermittent time is controlled by the intermittent relay, and the wiper is scraped according to a certain period by using the return switch contact of the motor and the charging and discharging function of the resistor and capacitor of the relay. The wiper strip is a tool for removing rain and dirt directly from the glass. Squeegee strip through the spring to the glass surface, its lip must be consistent with the glass Angle, in order to achieve the required performance. Permanent magnet DC motor is also used.