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Generator stator and generator

A generator stator and generator rotor technology, applied in wind power generation, electromechanical devices, electrical components, etc., can solve problems such as difficult maintainability, restrictions on application promotion, leakage, etc., and achieve high compactness, simple cooling system, and easy replacement The effect of heat effect enhancement

Active Publication Date: 2021-06-08
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the more commonly used methods are liquid cooling and air cooling. The cooling effect of liquid cooling is good. The typical heat transfer coefficient of liquid cooling is 1-2 orders of magnitude higher than that of air cooling. However, liquid cooling has problems related to leakage, insulation, and water quality. A series of reliability and maintainability problems such as processing, restricting its application and promotion

Method used

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  • Generator stator and generator
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Embodiment Construction

[0078] The exemplary embodiment will be described in detail herein, and examples thereof are shown in the drawings. The following description is related to the drawings, unless otherwise indicated, the same numbers in the drawings represent the same or similar elements. The embodiments described in the exemplary embodiments are not meant to all embodiments consistent with the present application. Instead, they are only examples of devices and methods that are consistent with some aspects of this application.

[0079] The terms used in this application are only for the purpose of describing particular embodiments, not to limit the invention. Unless otherwise defined, the technical term or scientific terminology used in this application should be understood from the usual meaning of people who have general skills in the art of the present application. The "first", "second" and similar words used in this application do not represent any order, quantity, or importance, but only to dis...

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Abstract

The invention provides a generator stator and a generator. The generator stator comprises a stator core, a plurality of stator windings and a liquid cooling system. The stator core comprises a cooling air duct, a stator winding and at least one stator tooth adjacent to the stator winding form a ventilation gap in the tooth width direction, the cooling air duct is communicated with the ventilation gap and a cavity, and the ventilation gap is used for being communicated with an air gap between the generator stator and a generator rotor. Besides, a liquid cooling pipeline penetrates through all fins and all cavity side radial sections in the axial direction of the stator core, the fins form heat exchange fins of the liquid cooling pipeline, when a cooling medium exchanges heat with the generator stator, the cooling medium can make contact with the liquid cooling pipeline, heat is transmitted to cooling liquid in the liquid cooling pipeline, and compared with a single air cooling system, more heat can be taken away, and the cooling effect is more remarkable.

Description

Technical field [0001] The present application relates to the field of generator technology, and in particular, there is a generator stator and a generator. Background technique [0002] Copper consumption, iron consumption, permanent magnet loss, mechanical loss caused by the motor during operation, so that the temperature of each of the components of the motor increases, not only causes the motor performance, but also causes reliability issues. For example, the wire resistance caused by high temperature increases, and the permanent magnet is reduced. It will reduce the power and efficiency of permanent magnet motor. High temperature will cause significant decrease in insulation and permanent magnets to irrevers, therefore need to optimize motor design and reliability The cooling means to achieve effective control of the temperature rise of the motor. [0003] At present, the more common way is liquid cold and air cooling, the liquid-cooled cooling effect is good, and the typica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/20H02K1/18H02K9/00H02K9/02
CPCH02K1/20H02K1/187H02K9/02Y02E10/72
Inventor 吴立建闻汇李华阳许移庆施杨周昊宇
Owner ZHEJIANG UNIV
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