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radial flux motor

A radial magnetic flux, motor stator technology, applied in the direction of magnetic circuits, electromechanical devices, electrical components, etc., can solve the problems of high process difficulty and increased manufacturing costs, and achieve the effect of noise reduction and electromagnetic torque ripple reduction

Active Publication Date: 2021-09-21
GUANGDONG WELLING ELECTRIC MACHINE MFG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) For radial flux motors, inclined slots or oblique poles are used to reduce electromagnetic torque ripple, but the process is also difficult, resulting in increased manufacturing costs

Method used

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Embodiment Construction

[0049] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0050] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0051] Refer below Figure 1 to Figure 8 A radial flux electric machine according to some embodiments of the invention is described.

[0052] Such as Figure 2 to Figure 4 As shown, the radial flu...

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Abstract

The present invention proposes a radial flux motor, comprising: a motor stator, including: a plurality of stator modules spliced ​​along the circumferential direction, and the stator module includes: a stator core, including an arc-shaped stator yoke and an arc-shaped stator yoke A plurality of stator teeth on the upper part and extending toward the axial direction; the stator windings are respectively wound on the stator teeth one by one to generate radial magnetic flux after electrification, and the motor rotor is nested and assembled with the motor stator. The angle between two adjacent stator teeth satisfies: N t is the number of stator teeth on each stator module, m is the number of phases of the motor, and p is the number of poles of the motor rotor. Through the technical solution of the present invention, compared with the setting direction in which the tooth pitch of adjacent stator teeth is equal to the pole pitch between adjacent magnetic poles in the prior art, by adjusting the tooth pitch, it is possible to maintain low cost and low difficulty process At the same time, it can reduce the electromagnetic torque ripple and achieve noise reduction.

Description

technical field [0001] The invention relates to the field of motors, in particular to a radial flux motor. Background technique [0002] For motors such as transverse flux motors and claw pole permanent magnet motors, due to the positioning force between the stator teeth on the motor stator and the magnetic steel on the motor rotor, there is a large electromagnetic torque ripple during the rotation of the motor. In the related art, the following methods are used to reduce the electromagnetic torque ripple, but there are relative defects: [0003] (1) For transverse flux motors, the electromagnetic torque ripple of each phase of the motor can be offset by the inherent phase shift between the phases. However, when the number of phases is large, the structure of the motor is too complicated, and the process is difficult to realize. And it is usually applied to motors that increase the number of motor phases axially. [0004] (2) For radial flux motors, inclined slots or obliq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/18H02K1/16H02K3/12
CPCH02K1/165H02K1/185H02K3/12H02K2213/03
Inventor 张兆强赵建兴陈金涛吴迪
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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