What is the function of power windows?

[DiGriffin]

Power windows refer to windows that automatically raise and lower the glass using power. They are operated by the driver or passengers through a switch that activates the window lift motor circuit. The motor generates power, which is transmitted through a series of mechanical transmissions to raise or lower the window glass as needed. More details are as follows: 1. The power window system mainly consists of a lift control switch, motor, lift mechanism, and relay. The motor is typically a bidirectional permanent magnet motor, which rotates forward or backward by controlling the current direction to achieve window movement. 2. There is a window lock switch on the window; once turned off, the power window switch will no longer function. 3. Power windows also include a thermal switch, which primarily controls the current to provide protection and prevent motor overload. Additionally, if the window glass cannot move freely due to other reasons, the thermal switch will automatically cut off the circuit. 4. There is also a safety feature where some rear windows cannot be fully lowered to the bottom to prevent children from sticking their heads or hands out of the window, thereby avoiding potential traffic accidents.