Silicon steel sheet applied to wind power generator stators
A technology of silicon steel sheet and machine stator, which is applied in the field of silicon steel sheet for wind turbine stator, can solve the problems of wasting materials, high iron loss value, unable to meet the high requirements of wind turbine stator, etc., and achieves low loss and reduced iron loss. value, good economic and social benefits
Inactive Publication Date: 2017-02-22
徐君康
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Problems solved by technology
[0003] Silicon steel sheets can be used as stators for wind power generators. Traditional wind power generator stators are formed by stacking and pressing multiple pieces of silicon steel sheets that are integrally cut and formed. At the same time, the iron loss value of the previous silicon steel sheet is relatively high, which cannot meet the increasingly high requirements of the wind turbine stator
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[0011] see figure 1 , the present invention relates to a silicon steel sheet for a stator of a wind power generator, comprising a silicon steel sheet body 1, the silicon steel sheet body 1 is welded by a plurality of fan-shaped silicon steel sheet units 2 with the same central angle, and the inner silicon steel sheet unit 2 The edge is concavely provided with a plurality of wire slots 3, the number of the silicon steel sheet unit 2 is 3~8, the number of wire slots 3 on the silicon steel sheet unit 2 is 10~20, and the number of the silicon steel sheet unit 2 is 10~20. The material of sheet body 1 is: C 0.06-0.08%, Si 2.6-3.2%, Mn 0.15-0.25%, Als 0.02-0.03%, Co 0.2-0.25%, Cr 0.15-0.25%, Sn 0.05-0.1%, V 0.03-0.05%, Hf 0.015-0.025%, Ta 0.008-0.012%, B 0.002-0.003%, N 0.004-0.005%, Sc 0.02-0.03%, Gd 0.015-0.025%, Yb 0.01-0.02%, P≤0.05 %, S≤0.0025%, and the rest is Fe.
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The invention relates to a silicon steel sheet applied to wind power generator stators. The silicon steel sheet is characterized in that a silicon steel sheet body (1) is formed by welding a plurality of fan-shaped silicon steel sheet units (2) with same central angles; a plurality of linear grooves (3) are formed by inwardly recessing the inner edges of the silicon steel sheet units (2). The silicon steel sheet applied to wind power generator stators is formed by welding the plurality of fan-shaped silicon steel sheet units with same central angles, so that a large quantity of materials are not wasted when cutting and forming the silicon steel sheet applied to wind power generator stators; meanwhile, the material of the silicon steel sheet is improved, so that the iron loss of the silicon steel sheet is reduced; the magnetic induction intensity of the silicon steel sheet can also be obviously improved; the problem that an iron loss reducing process and a magnetic induction improving process mutually contradictory in the prior art can be solved; the magnetic performance of the silicon steel sheet is obviously improved; due to low loss and high magnetic induction of the silicon steel sheet, the consumption can be reduced; a high quantity of power can be saved; the silicon steel sheet has good economic and social benefits.
Description
technical field [0001] The invention relates to a silicon steel sheet for a stator of a wind power generator, which belongs to the field of electromechanical technology. Background technique [0002] Silicon steel sheet is a kind of silicon-iron soft magnetic alloy with extremely low carbon content. Generally, the silicon content is 0.5-4.5%. Adding silicon can increase the resistivity and maximum magnetic permeability of iron. It is mainly used to make various transformers, motors and The iron core of the generator. [0003] Silicon steel sheets can be used as stators for wind power generators. Traditional wind power generator stators are formed by stacking and pressing multiple pieces of silicon steel sheets that are integrally cut and formed. At the same time, the iron loss value of the previous silicon steel sheet is high, which cannot meet the increasingly high requirements of the wind turbine stator. Contents of the invention [0004] The object of the present inve...
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Login to View More IPC IPC(8): C22C38/34H02K1/16H02K1/02
Inventor 徐君康
Owner 徐君康