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Stator and motor using same

A stator and stator tooth technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of motor peak torque reduction, cogging space waste, power density reduction, etc., to reduce and weaken the electromagnetic force and improve electromagnetic performance , improve the effect of sinusoidal

Pending Publication Date: 2021-08-03
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, when the stator teeth have unequal tooth widths, the area of ​​the slots between adjacent stator teeth will be different. The slots with smaller areas have the problem of difficulty in embedding the wires of the windings, while the slots with larger areas Copper wires with windings are difficult to fill, resulting in wasted slot area and reduced power density; moreover, stator teeth with smaller widths are prone to magnetic saturation, resulting in reduced peak torque of the motor

Method used

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  • Stator and motor using same
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Embodiment Construction

[0041] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of this application to those skilled in the art.

[0042] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible ...

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Abstract

The invention relates to a stator and a motor using the same. The stator comprises a stator magnetic core and a stator winding wound on the stator magnetic core, and the stator magnetic core comprises: an annular stator magnet yoke; stator teeth which extend from the stator magnet yoke in the radial direction, wherein the stator teeth are evenly distributed in the circumferential direction of the stator magnet yoke at intervals, and wire grooves used for containing wires of the stator winding are formed between the adjacent stator teeth. The plurality of stator teeth at least comprise a first type of stator teeth with a first length and a second type of stator teeth with a second length, and the second length is greater than the first length; and the first type of stator teeth and the second type of stator teeth are alternately arranged along the circumferential direction according to a preset rule. According to the embodiment of the invention, the sinusoidal property of the magnetomotive force generated by the winding can be improved, the harmonic electromagnetic force is weakened, and the electromagnetic performance of the motor is improved.

Description

technical field [0001] The present application relates to the field of motor technology, in particular to a stator and a motor using the stator. Background technique [0002] When optimizing the electromagnetic force of an induction motor, the stator is usually optimized. For example, in a related technology, the stator teeth are set to have unequal tooth widths, even if some of the stator teeth of the stator have larger widths and some of the stator teeth have smaller widths. [0003] However, when the stator teeth have unequal tooth widths, the area of ​​the slots between adjacent stator teeth will be different. The slots with smaller areas have the problem of difficulty in embedding the wires of the windings, while the slots with larger areas Copper wires with windings are difficult to fill, resulting in wasted slot area and reduced power density; moreover, stator teeth with smaller widths are prone to magnetic saturation, resulting in reduced peak torque of the motor. ...

Claims

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Application Information

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IPC IPC(8): H02K1/14H02K1/16
CPCH02K1/146H02K1/165H02K2201/03
Inventor 孔庆波徐鹏
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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