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Dual-rotor axial flux block structure switched reluctance motor

A switched reluctance motor and axial flux technology, which is applied to synchronous motors with stationary armatures and rotating magnets, electromechanical devices, electrical components, etc., can solve the problem of increasing motor end effects, reducing motor reliability, reducing Winding utilization and other issues, to achieve the effect of multi-motor topology, improve reliability, and suppress wind friction loss

Inactive Publication Date: 2018-10-12
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This winding form has a long winding end, which reduces the utilization rate of the winding on the one hand, especially in the case of a small motor length diameter; on the other hand, it increases the end effect of the motor, thereby reducing the reliability of the motor. sex

Method used

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  • Dual-rotor axial flux block structure switched reluctance motor
  • Dual-rotor axial flux block structure switched reluctance motor
  • Dual-rotor axial flux block structure switched reluctance motor

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0039] 1. Combination of stator and rotor poles

[0040] The commonly used switched reluctance motors have 3 phases, 4 phases and 5 phases, and the corresponding stator and rotor poles usually satisfy the formula (1). In the formula: N s , N r and m are the number of stator poles, the number of rotor poles and the number of motor phases, respectively. For m-phase switched reluctance motors, the combination scheme of stator and rotor poles usually satisfies formula (2).

[0041]

[0042]

[0043] The main flux of a traditional switched reluctance motor needs to be jointly generated by field windings on at least one pair of stator poles, so the number of stator poles of a traditional switched reluctance motor must be an even multiple of the number of motor phases. Howe...

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Abstract

The invention discloses a dual-rotor axial flux block structure switched reluctance motor. The dual-rotor axial flux block structure switched reluctance motor comprises a stator(1), a left rotor(2), aright rotor(3), an exciting winding(4), rotor end covers(5), bearings(6) and a hollow support tube(7); the stator(1) comprises an exciting pole(1-1), an external magnetic conduction ring(1-2), an internal magnetic conduction ring(1-3), an exciting pole support piece(1-4) and a stator support piece(1-5); the left rotor(2) comprises a left rotor block iron core(2-1) and a left rotor support piece(2-2); and the right rotor(3) comprises a right rotor block iron core(3-1) and a right rotor support piece(3-2). The dual-rotor axial flux block structure switched reluctance motor disclosed by the invention adopts a centralized winding form; on the one hand, the utilization ratio of the motor winding is improved, and on the other hand, the end effect of the motor is weakened; therefore, the reliability of the motor is improved; furthermore, the adopted block stator structure and rotor support piece with smooth surface are also helpful to restrain the wind-friction loss of the motor and improvethe efficiency of the motor.

Description

technical field [0001] The invention belongs to the field of motors, and in particular relates to a switched reluctance motor with a double-rotor axial flux block structure. Background technique [0002] The switched reluctance motor has the advantages of simple and firm structure, low cost, flexible control, good reliability, strong fault tolerance, high temperature and high speed adaptability, etc. Generate greater wind friction loss. Although the permanent magnet motor has a high power density, there are problems such as difficulty in adjusting the magnetism, high temperature demagnetization and vibration demagnetization. In addition, with the country's protection and development of rare earth resources and the rapid increase in market demand, the cost of permanent magnet motors has gradually increased. These problems limit the further promotion of permanent magnet motors in high reliability and high fault tolerance applications from the perspective of feasibility and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02H02K21/24
Inventor 孙炜李强
Owner NANJING UNIV OF SCI & TECH
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