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Stator assemblies and motors

A technology of stator windings and components, which is applied to the shape/style/structure of electromechanical devices, electrical components, and winding conductors, and can solve problems such as high magnetomotive force, overheating of windings, and reduced motor efficiency

Active Publication Date: 2022-08-09
BYD CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]In the field of motor technology, the flat wire windings of motors are mostly arranged at equal intervals, so that the windings do not show a distribution effect, and the magnetomotive force is relatively high, thereby increasing the Vibration noise of the motor
Moreover, when the motor is running, the AC copper loss of the flat wire winding near the slot of the stator will increase sharply, and the increase in AC copper loss will cause serious heating of the flat wire winding of the slot, thereby reducing the efficiency of the motor
Due to the uneven distribution of AC copper loss of the flat wire winding in the same stator slot, it is very easy to cause local overheating of the winding, reduce the life of the winding, and increase the risk of the winding being burned out

Method used

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  • Stator assemblies and motors
  • Stator assemblies and motors
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Embodiment Construction

[0069] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0070] Reference below Figure 1-Figure 15 A stator assembly 1000 and a motor according to embodiments of the present invention are described.

[0071] like Figure 3-Figure 4 As shown, the stator assembly 1000 according to the embodiment of the present invention includes a stator core 100 and a stator winding 200 .

[0072] Specifically, refer to Figure 3-Figure 6 , the stator core 100 has a plurality of stator slots 110 spaced along the circumferential direction of the stat...

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Abstract

The invention discloses a stator assembly and a motor. The stator assembly includes a stator iron core, a first stator winding and a second stator winding. The stator iron core has a plurality of stator slots, each stator slot has M slot layers, and M is an even number greater than or equal to 8. The stator winding includes a first U-shaped conductor segment and a second U-shaped conductor segment, the innermost slot layer, the outermost slot layer, the M / 2th slot layer radially outward, and the radially outward slot layer of each stator slot. The M / 2+1th slot layer is provided with a first U-shaped conductor segment, the pitch of the first U-shaped conductor segment is A, and the innermost slot layer, the outermost slot layer, the radial The outer M / 2th slot layer and the radially outward M / 2+1th slot layer are provided with a second U-shaped conductor segment, and the pitch of the second U-shaped conductor segment is B, A≠B. According to the stator assembly of the present invention, the vibration noise is small, the AC copper loss is small, and the heat generation is small, thereby prolonging the life of the stator winding.

Description

technical field [0001] The present invention relates to the technical field of motors, and in particular, to a stator assembly and a motor. Background technique [0002] In the field of motor technology, the flat wire windings of the motor are mostly arranged at equal intervals, so that the windings do not show a distribution effect, and the magnetomotive force is relatively high, thereby increasing the vibration noise of the motor. Moreover, when the motor is running, the AC copper loss of the flat wire winding near the slot of the stator will increase sharply, and the increase of the AC copper loss will cause serious heating of the flat wire winding of the slot, thereby reducing the efficiency of the motor. Due to the uneven distribution of AC copper loss of the flat wire winding in the same stator slot, it is easy to cause local overheating of the winding, reduce the life of the winding, and increase the risk of the winding being burned out. SUMMARY OF THE INVENTION ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/12H02K3/28
CPCH02K3/12H02K3/28H02K2213/03
Inventor 张斌王阳阳靳浩宁
Owner BYD CO LTD
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