How Does a Car Wiper Work?
1 Answers
The car wiper assembly consists of components such as an electric motor, reducer, four-bar linkage, wiper arm spindle, and wiper blade assembly. When the driver presses the wiper switch, the motor starts. The motor's rotational speed is then transmitted through a worm gear mechanism to increase torque and drive the rocker arm. The rocker arm moves the four-bar linkage, which in turn causes the shaft mounted on the front bulkhead to swing left and right. Finally, the shaft drives the wiper blades to sweep across the windshield. Below are relevant details: 1. The car's combination switch lever is equipped with a wiper control knob, featuring three positions: low speed, high speed, and intermittent. The top of the lever is a washer button switch. Pressing the switch releases washer fluid, which works with the wiper to clean the windshield. The washer system consists of a reservoir, water pump, delivery hose, and spray nozzles. 2. Wiper blades come in two structures: traditional frame-type wipers (with metal brackets) and frameless wipers (without metal brackets).