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Rotor structure of permanent magnet coreless motor

A technology with a rotor structure and no iron core, applied in the direction of magnetic circuit shape/style/structure, magnetic circuit rotating parts, etc., can solve the problems of silicon steel sheet consumption, large starting current of motor, low efficiency, etc., and reduce shaft The effect of small size, low running noise and high work efficiency

Inactive Publication Date: 2014-12-10
LUOYANG KAIXIN ELECTROMECHANICAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, when the existing iron-core motor is working, the efficiency of the current-carrying wire to effectively cut the magnetic field in the rotor magnetic field is not high; because the winding has an iron core, hysteresis loss, eddy current loss and residual loss are generated during the rotation of the motor, causing the motor to start High current, low efficiency and poor energy saving effect
Limited by the structure of the motor, the weight and volume are relatively large, and a large amount of silicon steel sheets are consumed

Method used

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  • Rotor structure of permanent magnet coreless motor

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Embodiment Construction

[0011] like figure 1 As shown, a rotor structure of a permanent magnet ironless motor comprises two magnetic yokes 1 on which a plurality of magnets 2 are arranged. The disk surfaces of the yokes are parallel to each other, the magnets on the two yokes are opposite to each other, the magnetic poles on the adjacent magnets 2 are opposite in polarity, an axial magnetic field is formed between the magnets 2 on the two yokes 1, and the magnets on each yoke 1 Several magnets are arranged on the magnetic yoke alternately and evenly according to N poles and S poles and surround a circle.

[0012] When using the rotor structure of the present invention to assemble the motor, the two yokes are set on the main shaft 3, and a stator with an iron-free structure is installed on the main shaft and is located between the two yokes. Since the two yokes form an axial Magnetic field, the electric wire cuts the magnetic induction line vertically in the rotor magnetic field, which can make the m...

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Abstract

The invention discloses a rotor structure of a permanent magnet coreless motor. The rotor structure comprises two magnetic yokes provided with a plurality of magnetic bodies thereon, the magnetic yokes are of disc structures provided with center holes therein, the disc faces of the magnetic yokes are parallel to each other, the magnetic bodies on the magnetic yokes are respectively opposite to one another, magnetic polarities of the neighboring magnetic bodies are opposite, axial magnetic fields are formed among the magnetic bodies on the magnetic yokes, the magnetic bodies on each magnetic yoke are alternatively and evenly distributed on the magnetic yoke according to N-pole and S-pole and are enclosed to form a circular shape. By the assembly, the motor is small in axial size, small in running noise and high in operation efficiency.

Description

technical field [0001] The invention belongs to the field of permanent magnet brushless motors, in particular to a rotor structure of a permanent magnet ironless motor. Background technique [0002] At present, when the existing iron-core motor is working, the efficiency of the current-carrying wire to effectively cut the magnetic field in the rotor magnetic field is not high; because the winding has an iron core, hysteresis loss, eddy current loss and residual loss are generated during the rotation of the motor, causing the motor to start Large current, low efficiency and poor energy saving effect. Limited by the structure of the motor, the weight and volume are relatively large, and a large amount of silicon steel sheets are consumed. Contents of the invention [0003] In order to solve the problems in the prior art, the object of the present invention is to provide a rotor structure of a permanent magnet ironless motor. [0004] In order to realize above-mentioned tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/22
Inventor 郭栋梁孙伟华屈庆贺李亚磊
Owner LUOYANG KAIXIN ELECTROMECHANICAL SCI
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