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Shaftless Outer Rotor Permanent Magnet Synchronous Motor with Reduced Cogging Effect

A cogging, permanent magnet synchronous technology, applied in synchronous motors with stationary armatures and rotating magnets, synchronous machine parts, magnetic circuit rotating parts, etc., can solve problems such as motor performance degradation and achieve production costs. Increase and decrease the effect of cogging

Active Publication Date: 2016-01-20
黑龙江工大华工电机科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of the cogging effect existing in the existing permanent magnet synchronous motor with a cogging structure, which in turn leads to a decrease in the performance of the motor, and provides a shaftless external rotor permanent magnet synchronous motor with reduced cogging effect

Method used

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  • Shaftless Outer Rotor Permanent Magnet Synchronous Motor with Reduced Cogging Effect
  • Shaftless Outer Rotor Permanent Magnet Synchronous Motor with Reduced Cogging Effect

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specific Embodiment approach 1

[0010] Specific implementation mode one: the following combination figure 1 and figure 2 Describe this embodiment, the shaftless outer rotor permanent magnet synchronous motor with reduced cogging effect described in this embodiment, it includes a stator casing 1, a stator and a rotor, the inner circular surface of the stator set by the stator casing 1, the stator Set inside the rotor, there is a uniform air gap between the stator and the rotor;

[0011] The stator includes a stator yoke 2, a stator slot, a stator winding 3 and a slot wedge 4. A plurality of stator slots are evenly arranged inside the annular stator yoke 2 along the circumferential direction, and the stator winding 3 is embedded in the stator slot. A slot wedge 4 is arranged between the casings 1, and the slot wedge 4 is used to fix the stator winding 3;

[0012] The rotor includes a rotor yoke 5 and a plurality of rotor poles 6 , and the inner circular surface of the rotor yoke 5 is uniformly provided with...

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Abstract

A shafting-free outer rotor permanent magnetic synchronous motor capable of reducing a slot effect belongs to the field of motors and solves the problem that motor performance is reduced due to the fact that the existing permanent magnetic synchronous motor with a slot structure has the slot effect. The shafting-free outer rotor permanent magnetic synchronous motor comprises a stator casing, a stator and a rotor. The stator casing is arranged on an inner circle surface of the stator, the stator is arranged inside the rotor, and an even air gap exists between the stator and the rotor. The stator comprises a stator yoke, stator slots, stator windings and slot wedges. A plurality of stator slots are arranged inside the annular stator yoke along the peripheral direction evenly, the stator windings are embedded in the stator slots, and the slot wedges are arranged between openings of the stator slots and the stator casing and used for fixing the stator windings. The rotor comprises a rotor yoke and a plurality of rotor magnetic poles. A plurality of rotor magnetic poles are arranged on an inner circle surface of the rotor yoke evenly.

Description

technical field [0001] The invention relates to a shaftless external rotor permanent magnet synchronous motor with reduced cogging effect, belonging to the field of motors. Background technique [0002] The existing permanent magnet synchronous motor adopts a structure with cogging. Due to the existence of the motor cogging, the air gap between the stator and the rotor of the motor is uneven, resulting in distortion of the air gap magnetic field. This is the cogging effect. effect can lead to reduced motor performance. Contents of the invention [0003] The purpose of the present invention is to solve the problem of the cogging effect existing in the existing permanent magnet synchronous motor with a cogging structure, which in turn leads to a decrease in the performance of the motor, and provides a shaftless external rotor permanent magnet synchronous motor with reduced cogging effect . [0004] The non-shafting external rotor permanent magnet synchronous motor with red...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/22H02K1/27H02K1/16H02K21/02
Inventor 赵猛胡建辉邹继斌徐永向刘承军江善林李勇尚静王骞赵博
Owner 黑龙江工大华工电机科技有限公司
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