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Stator core, rotating electrical machine, and method for designing stator core

A stator core and design method technology, applied in the design of stator core, rotating electrical machine, stator core field, can solve the problem of low magnetic flux density, achieve the effect of reducing deviation and suppressing iron loss

Pending Publication Date: 2022-06-24
NIPPON STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the technology of the rotating electrical machine disclosed in Patent Document 1, the cross-sectional area of ​​the yoke of the stator core is changed according to the magnetic properties, so that the magnetic flux density becomes higher in the region with poorer magnetic properties for the same magnetic flux. Low

Method used

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  • Stator core, rotating electrical machine, and method for designing stator core
  • Stator core, rotating electrical machine, and method for designing stator core
  • Stator core, rotating electrical machine, and method for designing stator core

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Embodiment Construction

[0067] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, the XY-Z coordinates shown in each figure represent the relationship of the orientation in each figure, and the origin of the XY-Z coordinate is not limited to the position shown in each figure. In addition, in the following description, the same length, shape, direction, size, interval, and other physical quantities are not limited to the same, but also include the case of being different within the range that does not impair the function of the target part.

[0068]

[0069] figure 1 It is a figure which shows an example of the structure of the rotating electrical machine 100. in particular, figure 1 It is a figure which shows the cross section obtained by cutting the rotating electrical machine 100 perpendicularly to its axis O. In the following description, the circumferential direction of the rotary electric machine 100 (direction aro...

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Abstract

The present invention is a stator core having a plurality of laminated electromagnetic steel sheets. Among a plurality of teeth (121a-121p) of the stator core, the width of the teeth in the direction in which the magnetic characteristics are excellent is smaller than the width of the teeth in the direction in which the magnetic characteristics are poor.

Description

technical field [0001] The invention relates to a design method of a stator iron core, a rotating electrical machine and a stator iron core. In particular, it is suitable for a stator core having a plurality of laminated electromagnetic steel sheets. [0002] This application claims priority based on Japanese Patent Application No. 2019-206649 for which it applied to Japan on November 15, 2019, and the content is incorporated herein by reference. Background technique [0003] As the stator core of the rotating electrical machine, an electromagnetic steel sheet is mainly used. Electrical steel sheets are roughly classified into grain-oriented electrical steel sheets and non-oriented electrical steel sheets. Magnetic properties of electrical steel sheets generally have anisotropy within the sheet surface. In particular, the anisotropy of the magnetic properties of the grain-oriented electrical steel sheet is large, and the magnetic properties in the rolling direction are ex...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K1/02H02K1/14
CPCH02K1/02H02K1/16H02K2213/03H02K15/024H02K1/165H02K1/14H02K17/02G06F30/36C22C38/001C22C38/002C22C38/02C22C38/04C22C38/06C22C38/105C22C38/16C22C2202/02
Inventor 大杉保郎富田美穗村川铁州
Owner NIPPON STEEL CORP
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