What is the car wiper motor
Automobile wiper motor is the core component of automobile wiper system. Its main function is to convert electric energy into mechanical energy, and convert the rotating motion of the motor into the reciprocating motion of the wiper arm through the connecting rod mechanism, so as to realize the wiper action. It usually uses DC permanent magnet motor, which can convert the rotating motion of the motor into the reciprocating motion of the scraper arm, so as to remove rain, dust, etc., to ensure that the driver's sight is clear .
Type and structure
Car wiper motor is mainly divided into DC motor and AC motor. The DC motor has a simple structure and is easy to maintain. The electrode on the motor rotor drives the wiper to swing through the graphite brush and rectifier. Ac motor can work continuously and power is large, by changing the electric direction of the coil in the motor or the internal structure to achieve electromotive force reversal, thereby driving the wiper movement .
Working principle and control mode
The working principle of the wiper motor is to convert electrical energy into mechanical energy to drive the wiper for reciprocating motion. Its control mode is divided into mechanical rotary type and electronic control type. Mechanical rotary low cost, simple structure, suitable for low-end models; The electronically controlled type controls the brushing frequency through the ECU to achieve automation and protection functions, suitable for high-end models .
Maintenance and troubleshooting
If the wiper motor fails, such as the connection shaft is broken, it can be replaced by itself. Before replacement, prepare tools such as an external hex wrench, remove the front cover, wiper, decorative plate and screws according to the steps, unplug the power cable, and remove the wiper motor from the connecting rod. Ensure that the connecting rod is in a straight line when installing the new motor, and reset the wiper motor after installation, and ensure that the position of the wiper is correct .
The main role of the motor is to provide power for the wiper and ensure the normal operation of the wiper . It converts the rotating motion into the reciprocating motion of the scraper arm through the connecting rod mechanism, so as to realize the cleaning function of the wiper . Specifically, when the motor is connected, the wiper can start to work, by adjusting the speed gear, you can control the current of the motor, and then adjust the motion speed of the scraper arm .
Type and structure
Car wiper motors are usually divided into two types: DC motors and AC motors. Dc motor structure is simple, easy to maintain, through the graphite brush and rectifier to transfer power to the motor rotor electrode drive wiper swing; The AC motor continuously works and the power is large, and the electromotive force is reversed by changing the power direction of the coil in the motor or the internal structure, so as to drive the wiper movement . In addition, some vehicles use brushless DC motors, which are more accurate and energy efficient, reduce friction and wear, and extend life .
Working principles and application scenarios
The working principle of the wiper motor is to convert the rotating power of the motor into the reciprocating motion of the wiper arm through the connecting rod mechanism. The high-speed mode is used for heavy rain, and the wiper swings fast to ensure the windshield is clean; Low speed mode for light rain to avoid excessive wiper wear . In addition, some cars also use nano-coating technology to improve the cleaning efficiency and life of the wiper, while autonomous vehicles use lidar and advanced sensors to more accurately and efficiently control the wiper operation .
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