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Halbach outer rotor doubly salient motor

A double salient motor, outer rotor technology, applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, magnetic circuit static parts, etc., can solve the problems of increasing the motor manufacturing process and cost, magnetic leakage, etc. Achieve the effect of large air gap magnetic density, large air gap and strong overload capacity

Inactive Publication Date: 2011-04-06
SHANGHAI DIANJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The permanent magnets of the above two motors both adopt tangential magnetization. Although the power density has been improved, due to the serious magnetic leakage of the tangential permanent magnets near the shaft, the permanent magnet brackets must be made of non-magnetic materials, which increases the manufacturing of the motor. process and cost

Method used

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Embodiment Construction

[0040] See attached Figure 6 , according to a kind of Halbach external rotor double salient pole motor of the present invention, comprise stator, rotor, air gap between stator and rotor and rotating shaft 62; The permanent magnet 66 arranged at 63, the stator iron core arranged around the permanent magnet 66, the stator iron core is made up of stator iron core assemblies 64, there is an air gap 61 between the stator iron core assemblies 64; the rotor is arranged outside the stator iron core, Both the stator core and the rotor core have a salient pole slot structure, and the permanent magnet 66 is a Halbach array. Although the motor shown in this figure has a stator permanent magnet support 63, in fact, according to the needs of motor design and technology, the stator permanent magnet support 63 can be designed into different sizes, or the stator permanent magnet support 63 is not used, and the Halbach column permanent magnet 66 is directly fixed on the inner wall of the stat...

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Abstract

The invention provides a magnetizing outer rotor doubly salient motor with a radial structure, which is characterized by comprising a stator, a rotor, an air gap between the stator and the rotor, a rotating shaft and the like, wherein, the stator comprises a stator permanent magnet support arranged around the rotating shaft, permanent magnets arranged around the stator permanent magnet support, and a stator core arranged around the permanent magnet; the permanent magnets adopt a radial magnetizing or parallel magnetizing mode; the stator core is composed of stator core components; air gaps exist among the stator core components; and the permanent magnets and the stator core components are contacted with each other and have equal number. The magnetizing outer rotor doubly salient motor takes the magnetizing body with a radial / parallel structure as a magnetic source and has simple manufacturing process and less magnetic leakage on an end part; and the magnetizing outer rotor doubly salient motor can be widely applied to fields such as wind power generation, an automobile hub and the like.

Description

technical field [0001] The invention relates to the field of motors, in particular to a Halbach outer rotor double salient pole motor. Background technique [0002] The Halbach column is a novel magnet arrangement proposed by the American scholar Klaus.Halbach for the permanent magnet structure. figure 1 shows the resultant magnetic field of the rotor permanent magnets in the Halbach column, with figure 2 Shown is the resultant magnetic field for the Halbach out-of-column permanent magnets. The Halbach column applied to the motor has the following advantages: ① The unilateral magnetic field distribution generated by the self-shielding effect of the Halbach column no longer requires the rotor yoke (external magnetic field) and the stator shell (internal magnetic field). Magnetic materials are used to provide passages for them, reducing eddy currents loss, reduces the moment of inertia, and improves the fast response performance; ② After the Halbach column is decomposed, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/17H02K1/14H02K1/24
Inventor 袁龙生赵朝会李键项峰陈垒张迪李华平
Owner SHANGHAI DIANJI UNIV
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