Multi-path star-delta automatic conversion three-phase asynchronous motor and use method thereof

Abstract

The invention discloses a multi-path star-delta automatic switching three-phase asynchronous motor and a using method thereof. The motor comprises a three-phase asynchronous motor body, a fixed plate and a supporting plate; a stator winding is arranged on one side of the interior of the three-phase asynchronous motor body, and a rotor iron core is arranged at the top of the stator winding; an air gap is reserved between the stator winding and the rotor core, a rotor winding is arranged in the three-phase asynchronous motor body, a transmission shaft is arranged in the rotor winding, and a bearing seat is arranged on the surface of the transmission shaft. Through the arrangement of the air gap and the lifting rod, when a worker needs to enlarge the air gap, the worker can drive the movable sleeve to move by screwing an adjusting knob, and the movable sleeve can drive the lifting rod to move up and down due to the fact that a connecting rod is installed on the surface of the movable sleeve, so the rotor core is driven to move, and the stator winding is arranged at the bottom of the rotor iron core, so that the size of the air gap can be adjusted.

Description

technical field [0001] The invention relates to the technical field of three-phase asynchronous motors, in particular to a three-phase asynchronous motor with multi-channel star-angle automatic conversion and a method for using the same. Background technique [0002] As a three-phase asynchronous motor running as a motor, the speed of the rotor of the three-phase asynchronous motor is lower than that of the rotating magnetic field. The relative motion between the rotor winding and the magnetic field generates electromotive force and current, and interacts with the magnetic field to generate electromagnetic torque. Energy conversion. Compared with single-phase asynchronous motors, three-phase asynchronous motors have better operating performance and can save various materials. According to different rotor structures, three-phase asynchronous motors can be divided into two types: cage type and winding type. The asynchronous motor with rotor has simple structure, reliable opera...

AI Technical Summary

Problems solved by technology

The structure of the three-phase asynchronous motor of the present invention can meet the requirements of the motor used for cooling and driving the wheel brake. The present invention realizes an output power of 500W and an input power of 900VA through the design of the motor stator and rotor structure, and the energy conversion efficiency is increased from 40% to 900VA. 55%, which greatly improves the onboard energy conversion efficiency, and at the same time the motor has high machining accuracy and mechanical strength.” However, the air gap of the device is small, and it is difficult to adjust the whole, which will easily cause a large loss of stray energy in the three-phase asynchronous motor. Low efficiency, easy to generate high temperature and noise;

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