Stator core unit, stator, motor and wind generator unit

A technology for wind turbines and stator cores, which is applied in wind turbine combinations, wind turbines, wind energy power generation, etc., can solve the problems of long heat transfer path, large thermal resistance, and poor cooling effect of end windings, so as to improve cooling efficiency, The effect of reducing costs and reducing consumption

Active Publication Date: 2017-05-10
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the installation position of the cooling pipe, the main heating body of the stator core, that is, the heat transfer path between the heat in the winding and the cooling pipe is long (the thermal resistance is large), resulting in poor cooling effect on the end winding

Method used

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  • Stator core unit, stator, motor and wind generator unit
  • Stator core unit, stator, motor and wind generator unit
  • Stator core unit, stator, motor and wind generator unit

Examples

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Embodiment Construction

[0057] Embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, in which the same or similar reference numerals refer to the same or similar features. The following detailed description and accompanying drawings serve to illustrate by way of example the principles of the invention, and other features, objects and advantages of the invention will become apparent. It should be understood that the present invention is not limited to the preferred embodiments described, but that the scope of the present invention is defined by the claims.

[0058] figure 1 A schematic diagram of a stator 1 for an electric machine, in particular a wind turbine, is shown. For the convenience of description, in the drawings, the circumferential direction 2 is the rotation direction of the motor, the axial direction 8 is the direction of the rotation axis of the motor, and the corresponding radial direction 10 is the direction perpendicular to th...

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Abstract

The invention relates to a stator core unit for a stator of a motor. The stator core unit comprises first lamination stacks, second lamination stacks, first intermediate lamination stacks, second intermediate lamination stacks, first cooling liquid channels and second cooling liquid conveyer pipes, wherein various lamination stacks are adjacently engaged along the axial direction of the motor, and the first intermediate lamination stacks and the second intermediate lamination stacks are arranged between the corresponding first lamination stacks and second lamination stacks; the first intermediate lamination stacks and the second intermediate lamination stacks are provided with first cutting grooves and second cutting grooves separately, and the first cutting grooves correspondingly communicate with the second cutting grooves to form the first cooling liquid channels, so that a first cooling liquid can flow through the first cooling liquid channels; and the second cooling liquid conveyer pipes pass through the first lamination stacks, the first intermediate lamination stacks, the second intermediate lamination stacks and the second lamination stacks and a second cooling liquid flowing through the second cooling liquid conveyer pipes can carry out heat exchange with the first cooling liquid. The invention further relates to the stator for the motor, the motor and a wind generator set.

Description

technical field [0001] The present invention relates to a stator core unit of an electric machine, a stator having the stator core unit, an electric machine having the stator, and a wind power generator set having the electric machine. Background technique [0002] Motors are the core equipment for electric energy production, transmission, use and changes in electric energy characteristics. They are widely used in all industries and sectors in modern society and occupy an extremely important position in the national economy. [0003] The motor will generate heat during operation, and the heat mainly comes from the heat loss of electromagnetic loss, mainly including Joule heat generated by ohmic impedance in the winding, namely copper loss; hysteresis loss and eddy current loss in the iron core, namely iron loss; and inevitable stray losses. If the motor is a permanent magnet motor, the heat loss also includes the loss of the magnetic steel. These losses cause the motor to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/20F03D9/25
CPCF05B2220/7068F05B2260/20H02K1/20Y02E10/72
Inventor 李锦辉夏静王丁会
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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