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Stator and wind driven generator

A technology for wind turbines and stators, applied to electrical components, electromechanical devices, electric components, etc., can solve the problems of reducing the magnetic permeability of the stator core, poor air magnetic permeability, and the edge of the iron core section is prone to warping, etc. , to improve performance and avoid edge warping

Pending Publication Date: 2021-09-24
SHANGHAI ELECTRIC WIND POWER GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the stator of this type of generator, on the one hand, due to the poor magnetic permeability of the air, the radial ventilation path will reduce the overall magnetic permeability of the stator core; on the other hand, it will also cause each stator core segment Edges are prone to warping

Method used

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  • Stator and wind driven generator
  • Stator and wind driven generator
  • Stator and wind driven generator

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Experimental program
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Embodiment Construction

[0032] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the common meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and sim...

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Abstract

The invention provides a stator and a wind driven generator. The stator includes a stator core. The stator core comprises a plurality of stator core segments. And a gap is formed between two adjacent stator core segments in the axial direction. Each stator core segment is formed by laminating and pressing a plurality of laminations. The plurality of laminations comprise at least two first laminations and a plurality of second laminations laminated between the at least two first laminations. And the magnetic conductivity of the first laminations is greater than that of the second laminations. The wind driven generator comprises a rotor, a bearing and a stator. Through the arrangement, the first laminations in contact with the gap between the two adjacent stator core segments are made of a material with relatively high magnetic induction, so that the situation that the magnetic conductivity of the stator core is reduced due to gap ventilation is avoided, and the performance of the generator is improved. In addition, the problem that the edges of the stator core segments tilt is avoided.

Description

technical field [0001] The application relates to the field of generators, in particular to a stator and a wind generator. Background technique [0002] During the operation of the generator, internal losses will occur, which will cause the temperature of the generator to rise. Therefore, generators need to adopt cooling methods to maintain the temperature rise within the limit value range. In the related art, the stator core of the generator is divided into multiple sections in the axial direction. There is a gap between each stator core segment to form a radial ventilation path, so as to ensure sufficient contact between the cooling medium and the stator. However, for the stator of this type of generator, on the one hand, due to the poor magnetic permeability of the air, the radial ventilation path will reduce the overall magnetic permeability of the stator core; on the other hand, it will also cause each stator core segment The edges are prone to warping. Contents of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K1/02
CPCH02K1/165H02K1/02H02K2201/03
Inventor 钟云龙闻汇刘军伟李华阳王嗣翔吴立建
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD