Two-phase outer rotor type switched reluctance motor

A technology of switched reluctance motor and outer rotor, which is applied in the direction of synchronous motor used for single-phase current, etc. It can solve the problems that traditional switched reluctance motors cannot realize self-starting, etc., and achieve the effect of low cost, cost reduction and loss reduction

CN106169849AInactive Publication Date: 2016-11-30ZHENGZHOU JITIAN PATENT OPERATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-11-30
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment Construction

[0032] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0033] Such as figure 1 As shown, a two-phase outer rotor switched reluctance motor according to the present invention includes a rotor and a stator, the rotor is arranged outside the stator, the rotor has no brushes, no windings, and no permanent magnets. Three tooth poles 1, 2, 3 protrude inside, and the three tooth poles protrude at equal intervals along the inner peripheral surface of the rotor, and the outer ring of the stator is provided with four tooth poles corresponding to the rotor , forming a double-salient pole structure with the rotor, each pole of the stator is equipped with concentrated windings A, A', B, B', and the coils AA' and BB' on the two radially opposite poles form a phase Stator winding, four coils form a two-phase stator winding.

[0034] Assume that the initial positions of rotor salient poles 1, 2, and 3 are...