What are the 4 raindrops on the windshield wiper?

1 Answers
CarlosAnn
07/30/25 12:11am
The 4 raindrops on the windshield wiper are used to adjust the speed of the wiper blade. Related introduction about windshield wipers: 1. Introduction to windshield wipers: Wipers, also known as windshield wipers or windscreen wipers, are devices used to wipe away raindrops and dust attached to the vehicle's windshield to improve the driver's visibility and enhance driving safety. Due to legal requirements, almost all vehicles are equipped with wipers. 2. Operating principle of windshield wipers: The power source of the wiper comes from the motor, which is the core of the entire wiper system. The quality requirements for the wiper motor 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.
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