Permanent magnet stator coreless axial magnetic field permanent magnet motor

A permanent magnet stator, axial magnetic field technology, applied in electrical components, electromechanical devices, magnetic circuit static parts, etc. The effect of less dosage, lower system cost and high efficiency

Active Publication Date: 2021-04-20
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing stator coreless axial field permanent magnet motor generally adopts the armature winding coreless structure. In order to increase the air gap flux density, the amount of permanent magnets is relatively large, resulting in increased system costs

Method used

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  • Permanent magnet stator coreless axial magnetic field permanent magnet motor
  • Permanent magnet stator coreless axial magnetic field permanent magnet motor
  • Permanent magnet stator coreless axial magnetic field permanent magnet motor

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Embodiment Construction

[0013] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0014] Such as Figure 1~3 As shown, a permanent magnet stator coreless axial field permanent magnet motor includes two armature stators, a middle permanent magnet stator and two rotors, two armature stators, a permanent magnet stator and two rotors according to the An armature stator 1, a first rotor 2, a permanent magnet stator 3, a second rotor 4, and a second armature stator 5 are sequentially arranged coaxially along the axial direction, and the first armature stator and the second armature stator are identical and placed symmetrically, the first rotor and the second rotor are identical and placed symmetrically, the armature stators both include armature stator cores 6 and armature windings 7, and the permanent magnet stators include high coercive The for...

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PUM

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Abstract

The invention relates to a permanent magnet stator coreless axial magnetic field permanent magnet motor which comprises two armature stators, a middle permanent magnet stator and two rotors. The two armature stators, the permanent magnet stator and the two rotors are coaxially and sequentially arranged along the axial direction according to the sequence of a first armature stator, a first rotor, a permanent magnet stator, a second rotor and a second armature stator; the first armature stator and the second armature stator are completely the same, the first rotor and the second rotor are completely the same, each armature stator comprises an armature stator iron core and an armature winding, and the permanent magnet stator comprises a high-coercivity permanent magnet and a permanent magnet stator support made of a non-magnetic material; and each rotor comprises a rotor iron core and a rotor support made of the non-magnetic material. And a coreless structure is adopted so that the eddy current loss and hysteresis magnetic core loss of the iron core are eliminated, the losses are lower, and the efficiency is higher. Meanwhile, the motor only adopts one permanent magnet stator, and compared with an existing stator coreless axial magnetic field permanent magnet motor, the permanent magnet consumption is small, and the system cost is reduced.

Description

technical field [0001] The invention relates to a permanent magnet stator coreless axial magnetic field permanent magnet motor, which belongs to the field of axial magnetic field permanent magnet motors. Background technique [0002] The stator coreless axial field permanent magnet motor has a more compact axial structure, higher torque density, and greater power density than the traditional radial field permanent magnet motor, and has low loss and high efficiency. It has a very broad application prospect in wind power generation, electric vehicles and household appliances that require compact space and high torque and power density. Compared with the general iron-core axial field permanent magnet motor, the stator coreless axial field permanent magnet motor completely cancels the magnetic core medium in the stator, thereby completely eliminating the core eddy current loss and hysteresis core loss, and the loss is lower. Low power and higher efficiency; at the same time, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/00H02K1/14H02K1/30H02K1/17H02K1/18
Inventor 杨公德周扬忠屈艾文
Owner FUZHOU UNIV
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