Two-phase outer rotor type switched reluctance motor

Abstract

The invention discloses a two-phase outer rotor type switched reluctance motor, which comprises a rotor and a stator, wherein the rotor is arranged out of the stator; the rotor is not provided with a brush, a winding or a permanent magnet; three tooth poles inwards extend from the rotor and are extruded at equal intervals along the inner circumference surface of the rotor; the outer ring of the stator is provided with four tooth poles corresponding to the rotor, and the four tooth poles and the rotor form a double-salient-pole structure; each pole of the stator is wound with centralized coils A, A', B and B', the coils AA' and BB' on two radially opposite poles of the stator independently form a one-phase stator winding; and when the motor is under a working state, a control circuit simultaneously electrifies three coils on a stator pole. The switched reluctance motor still can automatically start although the switched reluctance motor is only provided with two phases, the number of the rotor poles of the switched reluctance motor is an odd number, the numbers of the stator poles and the rotor poles are small, losses which pass through stator and rotor magnetic flux paths can be lowered, and therefore, the motor has the advantages of being low in heating and high in efficiency. Since magnetic density generated by the stator is not evenly distributed, the motor is stimulated to generate strong vibration and noise, and the two-phase outer rotor type switched reluctance motor can be used as a vibration motor.

Description

technical field [0001] The invention relates to a switched reluctance motor, in particular to a two-phase outer rotor type switched reluctance motor. Background technique [0002] Switched reluctance motor is a new type of motor, which has simple and firm structure, simple manufacturing process, low cost, large starting torque, high temperature rise, and high efficiency in a wide range of speed regulation and power. It can be applied to various harsh, high temperature and even strong vibration environments, and has been applied in many fields. [0003] Conventional switched reluctance motor stator phases are generally more than three phases, if the number of motor phases is less than three phases, there will be a torque dead zone in the motor, and self-starting cannot be achieved, and auxiliary starting measures are required. In addition, the number of poles of the rotor of the existing switched reluctance motor is even. Contents of the invention [0004] The technical p...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a two-phase external rotor switched reluctance motor. The present invention not only effectively solves the problem that the traditional switched reluctance motor with a lower than three-phase cannot realize self-starting, but also proposes a rotor New Structure of Switched Reluctance Motor with Odd Number of Poles

Images