1. The power window lifter
Many elevator car doors are now glass (opening and closing) has abandoned the manual lift embodiment shake skill, generally use a push-button electric lift mode, i.e., use electric window regulator.
car with multiple electric window regulator is a motor, speed reducer, the guidewire, guide plate, a glass mounting brackets and other components. Depending on the material making guidewires or different process embodiment, it is divided into sheave, and plastic with flexible shaft type power type three lifter. The first two species are used as the wire rope guide rope, the latter as a plastic tape guidewire.
In sheave electric window lifter commonly used as an example, it is a motor, reducer, rope, the guide plate and the glass mounting brackets and other component parts, the installation is fixedly mounted on a glass window glass upper bracket, glass and wire rope guide groove parallel to the guide plate. Turns on the motor, driven by the motor reducer output power, pulling rope mounting bracket moving glass, window glass for forcing the linear motion up or lowered. The plastic tape electric window lifter guidewire is plastic tape, perforated tape, for moving and positioning the plastic strip, control the movements of the window glass.
The key structure of the electric window regulator
is an electric motor and a reducer, both of which are integrally assembled, wherein the motor using a permanent magnet reversible DC motor, there are two different winding direction of the field coil of the motor, by controlling the switching of the forward and reverse do, that can control the rise or fall of the glazing. The motor is a double-button control switch with up, down, off the three working condition, automatically stop when the switch is not manipulated quot; OFF quot; position. Actuating circuit with the main switch (central control) and a sub-switch, the two parallel lines. A main switch drivers, controls the opening and closing all the doors of glass, and a door handle on the inside of each sub-control switches are opened and closed by an occupant of the respective glazing, the operation is very convenient.