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Electric machine for evaporative cooling underwater equipment

A technology of evaporative cooling and cooling water, which is applied in the direction of cooling/ventilation devices, electrical components, electromechanical devices, etc., to achieve the effects of uniform and comprehensive cooling, high power density, and uniform temperature

Inactive Publication Date: 2007-01-03
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the main heating components such as the motor stator of the present invention are immersed in the evaporative cooling medium, the cooling is uniform and comprehensive, and no local overheating occurs, which effectively overcomes the problems caused by the simple use of water external cooling

Method used

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  • Electric machine for evaporative cooling underwater equipment
  • Electric machine for evaporative cooling underwater equipment
  • Electric machine for evaporative cooling underwater equipment

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] One of the specific embodiments of the present invention is as figure 1 shown. The outermost part of the motor is a motor casing, which includes a stator casing 80 and a motor end cover 100, etc. The lower right end of the stator casing 80 is provided with a cooling medium outlet 10, and the upper left end is provided with a cooling medium inlet 50; The stator core 70 is placed in the middle of the circle, the outer circle of the stator core 70 and the inner circle of the stator casing 80 are interference fit, and the stator winding 60 is embedded in the slot of the stator core 70; between the inner circle of the stator core 70 and the outer circle of the rotor 20 In the air gap of the motor, the inner sleeve 90 is installed close to the inner circle of the stator core 70, and there is a certain gap between the inner circle of the inner...

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PUM

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Abstract

A motor used in evaporative cooling undersea device features that whole stator is located in enclosed stator cavity composed stator housing, end cover and inner sleeve, stator cavity is implanted with evaporative cooling media, wherein said stator core Stator core located between stator housing and inner sleeve, inner circle of stator housing and stator core excircle interference fit, inner sleeve excircle close fitting stator core inner circle, evaporative cooling media free-flowing in stator cavity and got down to stator core interior. Stator winding and stator core etc heating part generated heat quantity is conducted evaporative cooling media, when evaporative cooling media main unit temperature rises to corresponding pressure saturation temperature, media bubble and generate phase transition heat sink. Vaporization process generated vapour exchanges heat with external water of stator housing, and condenses and liquefies then backing to stator cavity.

Description

technical field [0001] The invention relates to a motor for underwater equipment, in particular to a motor for evaporation cooling underwater equipment without a condenser. Background technique [0002] The motor is a kind of electromechanical energy conversion mechanism. In the process of electromechanical energy conversion, losses are inevitably generated, mainly including core loss, winding loss, mechanical loss, etc., and most of these losses are finally converted into heat, making the parts of the motor The temperature rises. The selection of motor cooling method is an important part of motor design. [0003] Motors for underwater equipment generally work underwater. The motor stator casing is completely surrounded by water. The heat generated by the stator and other heat-generating components inside the motor is transferred to the water around the stator casing through the stator casing. The water can evenly take away the heat from the surface of the casing, so as to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/00H02K1/16H02K15/02
Inventor 王海峰傅德平顾国彪
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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