The working principle of electric motor
2 stator windingFunction: it is the circuit part of the motor, through the three-phase alternating current, produces the revolving magnetic field.Structure: it consists of three windings which are separated from each other by 120 degrees of electric angle in space, and are arranged by the same structure. Each coil of the winding is embedded in each slot of the stator according to certain rules.The main insulation items of the stator winding are as follows: (to ensure the reliable insulation between the conductive part of the winding and the core and the reliable insulation of the winding itself); three.(1) ground insulation: insulation between stator winding and stator core.(2) interphase insulation: insulation between stator windings of each phase.(3) turn to turn insulation: insulation between the turns of each stator winding.
I. The structure of the three-phase asynchronous motor consists of stator, rotor and other accessories.(1) stator (stationary part)1 stator coreAction: a part of a magnetic circuit of a motor, with stator windings placed on it.Structure: the stator core is generally made of 0.35~0.5 mm thick surface silicon steel sheet with insulating layer and is superposed and pressed, and the inner circle of the iron core is uniformly distributed with slots for inserting stator windings.There are several kinds of stator core groove:Semi closed slot: the efficiency and power factor of the motor are higher, but the winding and insulation are difficult. Generally used in small low-voltage motors.Semi open slot: can be inserted into the forming winding, generally used for large and medium-sized low-voltage motors. The so-called winding, winding that can be pre insulated treatment, and then into the groove.Open slot: used for inserting and forming winding, the insulation method is convenient, mainly used in high voltage motor.
Basic introductionAn electric motor is a rotating electric machine that transforms electrical energy into mechanical energy. It consists mainly of an electromagnet winding or a stator winding and a rotating armature or rotor used to produce a magnetic field. Under the rotating magnetic field of the stator winding, there is current passing through the armature squirrel cage aluminum frame and rotating by the magnetic field. Some of these machines can be used as motors or as generators. It is a machine that transforms electrical energy into mechanical energy. In general, the part of an electric motor is rotated. This motor is called a rotor motor. There is also a linear motor called a linear motor.Basic structure
An electric motor (Motors) is a device that converts electrical energy into mechanical energy. It uses the energized coil (that is, stator winding) to produce a rotating magnetic field, and acts on the rotor squirrel cage type closed aluminum frame to form magnetoelectric rotating torque. Use the power of the motor according to the different DC motor and AC motor, motor power system in most of the AC motor can be synchronous or asynchronous motor (motor rotation speed of motor stator and rotor magnetic speed keeps synchronous speed). The motor is mainly composed of stator and rotor. The direction of force acting on the conducting wire in the magnetic field is related to the direction of the current and the direction of the magnetic induction line (the direction of the magnetic field). The working principle of the motor is that the magnetic field acts on the force of the current, so that the motor rotates.
