Switched Reluctance Motor

Abstract

The invention provides a switched reluctance motor, comprising: a rotor assembly having a rotor fixing part (10) and a plurality of rotor cores (20) fixedly arranged on the rotor fixing part (10) and distributed at intervals in the circumferential direction, The rotor fixing part (10) is a non-magnetic part and has a rotating shaft fixing part (11); the stator core (30) is sleeved on the rotor assembly, and the stator core (30) has a stator yoke part (31) and is located on the stator A plurality of stator teeth (32) on the inner side of the yoke (31), the rotor core (20) has a rotor body (21) and a rotor mounting part (23), and the rotor body (21) is fixed by the rotor mounting part (23) On the rotor fixing part (10), an air gap is formed between two adjacent rotor bodies (21). The switched reluctance motor of the present invention has higher efficiency.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a switched reluctance motor. Background technique [0002] At present, the switched reluctance motor is a new type of speed-regulating motor. The speed-regulating system has the advantages of both DC and AC speed-regulating systems. It has the advantages of high efficiency and high system reliability within the range, and is widely used in household appliances, aviation, aerospace, electronics, machinery and electric vehicles and other fields. The patent publications with the application number 200910263110.6 and 201010102546.X both disclose a hybrid excitation segmented stator and rotor switched reluctance motor, and the patent publication with the application number 200910263110.6 is the closest prior art, although its It has good performance, but it is unavoidable that there is an obstacle (a part of the fixed frame) between two adjacent rotor cores, which reduces the magnetic...

AI Technical Summary

Problems solved by technology

The patent publications with the application number 200910263110.6 and 201010102546.X both disclose a hybrid excitation segmented stator and rotor switched reluctance motor, and the patent publication with the application number 200910263110.6 is the closest prior art, although its It has good performance, but it is unavoidable that there is an obstacle (a part of the fixed frame) between two adjacent rotor cores, which reduces the magnetic induction of the magnetic field. In addition, when the motor runs at high frequency, there is an alternating current in the rotor core The magnetic field changes, so a strong axial eddy current is generated. The disadvantage is that since the fan-shaped block rotor is completely embedded in the metal sleeve of the non-magnetic rotor, the metal sleeve of the non-magnetic rotor is fixed in contact with the tooth block of the fan-shaped rotor. The eddy current will increase by the square of the non-magnetic rotor metal sleeve. The axial eddy current loss has a greater impact on the iron loss of the motor. Say, with the same output, the loss increases and the input power needs to be increased

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