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Cogging-free disc type permanent magnet motor

A permanent magnet motor, no cogging technology, applied in magnetic circuits, electromechanical devices, electrical components, etc., can solve the problems of disk motor load capacity and efficiency limitations, large motor stator heating, weak overcurrent capability, etc. Small equivalent air gap, strong overcurrent capability, and the effect of improving motor torque coefficient

Inactive Publication Date: 2021-10-19
BEIJING JINGDIAO GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effective copper cross-sectional area of ​​these two coil types is small, resulting in high heat generation of the motor stator, weak overcurrent capability, and poor thermal conductivity, thereby limiting the load capacity and efficiency of the disc motor

Method used

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  • Cogging-free disc type permanent magnet motor
  • Cogging-free disc type permanent magnet motor
  • Cogging-free disc type permanent magnet motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] combine figure 1 and figure 2 As shown, a non-cogged disc permanent magnet motor of the present invention includes a stator 1 and a rotor 2 . The stator 1 includes a stator yoke 11, a disc winding 12 and a yoke insulating layer 13. The disc winding 12 is installed on the end face of the stator yoke 11, and a yoke insulating layer 13 is arranged between the two to provide electrical insulation. role. The rotor 2 includes a bearing 21, a magnetic tile 22, a rotor disk 23 and a rotor shaft 24, the rotor shaft 24 is supported by the bearing 21, the rotor disk 23 and the rotor shaft 24 are fixedly installed, the magnetic tile 22 is arranged on the rotor disk 23, and along the rotor disk 23 evenly distributed circumferentially. After the stator 1 and the rotor 2 are installed, the disc windings 12 and the magnetic tiles 22 are i...

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PUM

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Abstract

The invention discloses a cogging-free disc type permanent magnet motor, and aims to provide a cogging-free disc type permanent magnet motor which is high in stator heat dissipation capability, high in overcurrent capability and large in torque density, and effectively improve the load capacity and efficiency of the disc type motor. The permanent magnet motor comprises a stator and a rotor, and an air gap exists between the stator and the rotor. The stator comprises a disc winding, the disc winding is formed by connecting a plurality of fan-shaped ring coils according to a phase sequence, each fan-shaped ring coil comprises one or more coil units which are distributed in an overlying mode, and the coil units are connected in series and are mutually insulated in the overlying direction.

Description

technical field [0001] The invention belongs to the technical field of disc motors, in particular to a disc permanent magnet motor without cogging. Background technique [0002] The non-cogging disc permanent magnet motor is an axial flux motor. Because of its compact structure and the elimination of cogging torque and torque fluctuation caused by iron core slotting, it is very suitable for high-precision applications. The stator coils of the existing non-cogged disc permanent magnet motors are mostly made of enameled wires or printed circuit boards, with simple structure, convenient manufacture and low cost. However, the effective copper cross-sectional area of ​​these two coil types is small, resulting in high heat generation of the motor stator, weak overcurrent capability, and poor thermal conductivity, thereby limiting the load capacity and efficiency of the disc motor. Contents of the invention [0003] The purpose of the present invention is to overcome the deficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/04H02K3/28H02K3/34H02K3/02H02K1/27H02K16/02H02K16/04
CPCH02K3/04H02K3/28H02K3/34H02K3/345H02K3/02H02K1/2793H02K16/02H02K16/04H02K2201/12H02K2203/03
Inventor 付江寒郝凌霄吴立英黄晓雷徐润
Owner BEIJING JINGDIAO GRP CO LTD
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