Operating principle of car wiper

Private cars are very common nowadays. It cannot be said that every family has them, but the number is indeed very large. And some daily usage habits will greatly affect the use of automotive supplies. Automobile wipers are divided into automobile boneless wipers and automobile boneless wipers, which are commonly used automotive supplies, and their protection is the key. The following will explain the operation principle of the car wiper.

    The power source of the car wiper comes from the electric motor, which is the core of the entire wiper system. The quality requirements of wiper blades and wiper motors are quite high. It uses a DC permanent magnet motor, and the wiper motor installed on the front windshield is generally integrated with the worm gear mechanical part. The function of the worm gear mechanism is to decelerate and increase the torsion, and its output shaft drives the four-bar linkage mechanism, through which the continuous rotary motion is changed to the left and right swing motion.

　　The wiper motor adopts a 3-brush structure to facilitate speed change. The intermittent time is controlled by an intermittent relay, and the charge and discharge functions of the return switch contact of the motor and the resistance and capacitance of the relay are used to make the wiper wipe according to a certain period. The wiper blade rubber strip is a tool to directly remove rain and dirt on the glass. The wiper strip is pressed against the glass surface by the spring strip, and its lip must match the angle of the glass in order to achieve the required performance.

　　 Under normal circumstances, there is a wiper control knob on the handle of the automobile combination switch, with 3 gears of low speed, high speed and intermittent. At the top of the handle is a washer button switch. When the switch is pressed, washing water is sprayed out, and the windshield is washed with the wiper. The scrubber system is a very common device on automobiles at present, which consists of a water storage tank, a water pump, a water delivery pipe, and a water spray nozzle. The water storage tank is generally a plastic tank of 1.5 liters to 2 liters, and the water pump is a miniature electric centrifugal pump, which transfers the washing water from the storage tank to the water spray nozzles. The washing water is divided into small jets and sprayed toward the windshield, and cooperates with the wiper to clean the windshield.

This article is original by the wiper motor manufacturer, please indicate http://www.c-eu.cn/