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Stator core unit, stator, motor and wind turbine

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

Active Publication Date: 2019-05-10
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • 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 turbine
  • Stator core unit, stator, motor and wind turbine
  • Stator core unit, stator, motor and wind turbine

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Embodiment Construction

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

[0058] figure 1 A schematic diagram of a stator 1 for an electrical machine, in particular a wind generator, 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 the rotation axis. exist figure 1 Am...

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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 invention relates to a stator core unit of an electrical machine, a stator with the stator core unit, an electrical machine with the stator, and a wind power generating set with the electrical machine. Background technique [0002] Motors are the core equipment for the production, transmission, use and change of electric energy characteristics. They are widely used in all industries and departments in modern society and occupy an extremely important position in the national economy. [0003] The motor will generate heat during operation. The heat mainly comes from the heat loss of electromagnetic loss, mainly including the Joule heat generated by the ohmic impedance in the winding, that is, copper loss; the hysteresis loss and eddy current loss in the iron core, that is, iron loss; and unavoidable stray losses. If the motor is a permanent magnet motor, heat loss also includes magnet loss. These losses cause the motor to release a large amount of ...

Claims

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Application Information

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Patent Type & Authority Patents(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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