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Radial magnetic flux modularization polyphase motor having high magnetism-insulation capability

A technology with isolation capability and radial magnetic flux, applied in the direction of magnetic circuit static parts, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., which can solve the problem of difficult fault-tolerant control and unfavorable fault isolation. The design is modularized. structure and other problems, to achieve the effect of convenient large-scale processing and manufacturing, low manufacturing and maintenance costs, and high power density

Active Publication Date: 2014-04-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the fault-tolerant control is difficult when the one-phase winding of the existing multi-phase permanent magnet synchronous motor is short-circuited; due to the scattered distribution of the winding space, it is not conducive to fault isolation and the problem of designing a modular structure. A Radial Flux Modular Multiphase Motor with High Magnetic Isolation Capability

Method used

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  • Radial magnetic flux modularization polyphase motor having high magnetism-insulation capability
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  • Radial magnetic flux modularization polyphase motor having high magnetism-insulation capability

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specific Embodiment approach 1

[0019] Specific implementation mode one: the following combination Figure 1 to Figure 7 This embodiment is described. The radial flux modular multiphase motor with high magnetic isolation capability described in this embodiment includes a modular stator 1, a rotor 2, a casing 3 and a main shaft 11,

[0020] The rotor 2 is arranged on the main shaft 11, the modular stator 1 is arranged outside the rotor 2, and there is an air gap between the modular stator 1 and the rotor 2, and the length of the air gap is L;

[0021] The outer circular surface of the modular stator 1 is fixed on the inner circular surface of the casing 3;

[0022] Each modular stator 1 includes N identical stator modules, and the N identical stator modules are spliced ​​into a disc shape; each stator module includes a stator core 4, five stator teeth 5 and two concentrated windings 6. Five stator teeth 5 are set on the stator core 4; the five stator teeth 5 are the first rectangular stator teeth, the second...

specific Embodiment approach 2

[0040] Specific implementation mode two: the following combination figure 2 and Figure 4 Describe this embodiment. This embodiment will further describe Embodiment 1. A semicircular protruding part 9 is provided on one side of the yoke of the stator core 4 of each stator module, and a semicircular concave part is symmetrically provided on the other side of the yoke. slot 10 , two adjacent stator modules are spliced ​​together through the cooperation of semicircular protrusions 9 and semicircular grooves 10 .

[0041] The semicircular protruding part 9 and the semicircular groove 10 adopt clearance fit, and after splicing N stator modules along the circumferential direction, they are nested in the housing 3 by using the shrink-fit technology.

specific Embodiment approach 3

[0042] Embodiment 3: In this embodiment, Embodiment 1 is further described. The permanent magnet 8 adopts a surface mount type, a Halbach array type or a built-in structure.

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Abstract

The invention discloses a radial magnetic flux modularization polyphase motor having the high magnetism-insulation capability and belongs to the field of motors. The radial magnetic flux modularization polyphase motor having the high magnetism-insulation capability solves the problems that when a phase winding of an existing polyphase permanent magnetic synchronous motor has a short circuit, fault-tolerant control difficulty is large, and due to the disperse distribution of winding space, fault insulation is not facilitated, and design of a modularization structure is not facilitated. The radial magnetic flux modularization polyphase motor having the high magnetism-insulation capability comprises modularization stators, a rotor, a motor shell and a main shaft. The rotor is arranged on the main shaft, the modularization stators are arranged on the outer portion of the rotor, and air gaps exist between the modularization stators and the rotor. The surfaces of the outer circles of the modularization stators are fixed to the surface of the inner circle of the motor shell. Each modularization stator comprises N identical stator modules, wherein the N identical stator modules are spliced to form a disc shape. Each stator module comprises a stator iron core, five stator teeth and two concentrated wound windings. According to the rotor, the surface of the outer circle of a rotor iron core is provided with 2N+ / -2 permanent magnets which are oppositely arranged in the circumference direction in an alternative mode and perform magnetizing in the radial direction.

Description

technical field [0001] The invention relates to a radial magnetic flux modular multiphase motor with high magnetic isolation capability, belonging to the field of motors. Background technique [0002] Multi-phase permanent magnet synchronous motors have fault-tolerant operation capabilities due to redundant phase numbers, and are suitable for applications that require high reliability of drive motors, such as multi-electric aircraft, pure electric vehicles, and electric propulsion ships. The multi-phase permanent magnet synchronous motor with distributed winding or ordinary fractional slot concentrated winding structure has the disadvantage of large magnetic coupling between phases. When a short-circuit fault occurs in one phase winding of the motor, due to the magnetic coupling between the windings, the magnetic flux generated by the short-circuited phase winding will induce a counter electromotive force in the remaining phase winding, which will affect the control effect o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K1/27
Inventor 郑萍吴帆隋义程路明林展汐
Owner HARBIN INST OF TECH
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