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Motor cooling system

A motor cooling and gas cooling technology, applied in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve problems such as potential explosion hazards, low cooling efficiency, and large wind friction loss, and achieve enhanced robustness and reliability , Cooling uniformity is good, the effect of improving cooling capacity

Inactive Publication Date: 2016-06-22
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the low cooling efficiency of the existing air cooling system, large wind friction loss, complex structure of the hydrogen cooling system, hidden danger of explosion, and poor uniformity of the existing spray evaporative cooling system, the present invention provides a new motor cooling system. system

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 As shown, the present invention includes a condensing cooler 2, a gas cooling circuit and an evaporative cooling circuit. The gas cooling circuit and the evaporative cooling circuit are placed inside the airtight casing 1, and the condensing cooler 2 is installed on the top outside of the casing 1, and the condensing cooler 2 communicates with the casing 1 through its air inlet and outlet. The condensing cooler 2 is a common part of the gas cooling circuit and the evaporative cooling circuit, and the gas cooling circuit and the evaporative cooling circuit meet in the condensing cooler 2 . For different designs of the gas cooling circuit, the condensing cooler 2 can also be installed on the lower part or the side outside the casing 1 .

[0022] The gas cooling circuit includes a stator core, an air duct piece, a rotor core, a wi...

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Abstract

A motor cooling system comprises a condensation cooler, a gas cooling loop and an evaporation cooling loop, wherein the gas cooling loop and the evaporation cooling loop are located in a sealed casing cavity, and the two loops are intersected in the condensation cooler; the condensation cooler is shared by the gas cooling loop and the evaporation cooling loop and is located outside the motor casing and is communicated with the casing cavity via a gas inlet and a gas outlet. The motor cooling system is applied to cooling of a large-power generator and a motor.

Description

technical field [0001] The invention relates to a motor cooling device. Background technique [0002] The existing cooling methods of motors can be divided into two types, one is to use the specific heat capacity of flowing gas or liquid to take away heat, such as air cooling, hydrogen cooling, water cooling, oil cooling and other cooling methods, which can be subdivided according to the state of the working fluid It is gas cooling (air cooling, hydrogen cooling) and liquid cooling (water cooling, oil cooling, etc.); the other is to use the phase change latent heat of the cooling medium to remove heat, such as evaporative cooling. When a liquid undergoes a phase change, it absorbs much more heat than it dissipates through the heat transfer. [0003] Gas cooling methods such as air cooling and hydrogen cooling have the widest application range due to their long development time and mature and stable technology. The existing air cooling system has a variety of structural for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/20H02K9/10
CPCH02K9/20H02K9/10
Inventor 阮琳陈文学杨劼廖毅刚令红兵李振国董海虹
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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