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Switched Reluctance Motor

A switched reluctance motor, salient pole technology, applied in magnetic circuit, synchronous motor for single-phase current, synchronous machine, etc., can solve the problem of single-phase torque repetition, increased torque ripple, torque It can shorten the magnetic circuit, reduce the torque ripple, and suppress the deformation of the magnetic circuit.

Active Publication Date: 2017-12-08
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like Image 6 As shown, if the three-phase current is passed to the switched reluctance motor described in Patent Document 1, the single-phase torque repeats more, so the peak value of the torque output by the switched reluctance motor becomes higher, and the torque Increased pulsation

Method used

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Examples

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Embodiment Construction

[0055] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that, in the description of this embodiment, a switched reluctance motor used as a drive source of a vehicle such as an automobile will be described as an example.

[0056] figure 1 It is a longitudinal sectional view of the switched reluctance motor in one embodiment of the present invention. figure 2 yes figure 1 A magnified view around the first slot and the second slot of the .

[0057] Such as figure 1 As shown, a switched reluctance motor (hereinafter, simply referred to as an SR motor) 1 includes a rotor 2 , a stator 3 , and a winding 4 .

[0058] The rotor 2 includes a rotating shaft 5 and a rotor core 6 . The rotating shaft 5 is rotatably supported by the stator 3 . The rotor core 6 stands radially outward from the outer peripheral surface of the rotary shaft 5 . The rotor core 6 is fixed by fitting or the like with respect to the rotary shaft 5 s...

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Abstract

The present invention provides a switched reluctance motor which can reduce the torque pulse. The switched reluctance motor includes a stator having an annular stator core which has teeth portions provided with poles, which are arranged in a circumferential direction of the stator core, wherein the stator core has a circular cross-sectional contour orthogonal to an axis thereof; a winding wound around the teeth portion, and a rotor having a rotor core which has salient pole portions provided with poles, which are arranged at regular intervals in the circumferential direction of the rotor core. The number of the poles with the salient pole portions is 5 poles*N, and the number of the poles with the teeth portion is 6 poles*N (The above two N are an equal natural numbers.). The salient pole portion has inclined surfaces in which both end corners in the circumferential direction are chamfered.

Description

technical field [0001] The invention relates to a switched reluctance motor. Background technique [0002] There is known a switched reluctance motor with a simple structure that does not use permanent magnets. In this switched reluctance motor, a plurality of teeth of the stator are arranged at equal intervals in the circumferential direction and extend in the radial direction. Therefore, there is a problem that the facing area of ​​the salient poles and the teeth is reduced, and the magnetic path formed between the stator and the rotor is deformed and lengthened, thereby increasing the loss of the motor. [0003] In order to solve this problem, in the switched reluctance motor described in Patent Document 1, the number of poles of the tooth portion 13 of the stator is 6 poles×N, and the number of poles of the salient pole portion of the rotor is 5 poles×N (“N " are the same natural number respectively), the stator core is alternately equipped with first slots and second ...

Claims

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Application Information

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IPC IPC(8): H02K19/10H02K1/24
CPCH02K1/246H02K19/10H02K19/103H02K1/146
Inventor 筒井隆裕
Owner HONDA MOTOR CO LTD
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