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Horizontal pervaporatively cooling motor

A technology for cooling motors and evaporative cooling, which is applied to cooling/ventilation devices, electrical components, electromechanical devices, etc., and can solve problems such as complex structures and cooling systems

Active Publication Date: 2009-02-11
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

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art structure and complex cooling system, and propose a horizontal motor in which both the stator and the rotor use evaporative cooling

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] As shown in FIG. 1 , the motor of the present invention mainly includes two parts: a motor stator 10 and a rotor 20 . The stator 10 of the motor is completely immersed in a cavity filled with evaporative cooling medium, and the cavity is surrounded by a sleeve 40, a casing 70 and end rings 30 at both ends of the stator. The sleeve 40 is located in the air gap of the motor, the outer diameter of the sleeve 40 is in contact with the inner diameter of the stator core 102 , and the two ends of the sleeve 40 are in contact with the inner edge of the end ring 30 respectively. The outer edge 302 of the end ring 30 is fixed on the pressure ring 104 at the end of the stator core. The pressure ring 104 of the stator is directly welded to the casing 70 .

[0024] The iron core of the motor stator 10 is designed with radial channel grooves 103, an...

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Abstract

A horizontal full-evaporation cooling motor is characterized in that a stator cavity is communicated with a rotor cavity of the motor and share one condenser (90). A stator (10) is soaked in a cavity body filled with an evaporative cooling medium, and the cavity body is surrounded by a sheath (40), a housing (70) and end rings (30) on both ends of the stator. The heat is transferred to the cooling medium by a stator winding (101) and an iron core (102) of the motor, so that the cooling medium absorbs the heat and is vaporized, the gaseous medium rises, enters the condenser (90) and is condensed, and the condensed liquid medium drips to the stator cavity. A motor rotor (20) adopts the evaporative cooling manner by local soaking or through an axial pipe, wherein the evaporative cooling medium flows to the rotator cavity from the stator cavity through a liquid level switch (60) and is evaporated after absorbing the heat of the rotor (20), and the gaseous medium rises through channels on both ends of the rotor cavity and enters the condenser (90). The rotor cavity is sealed with the outside of housing by adopting a rotary seal structure (50) at the rotation shaft. The motor has the advantages of good cooling effect, compact structure and simple cooling system.

Description

technical field [0001] The invention relates to an evaporative cooling motor. Background technique [0002] As an electromechanical energy conversion device, the motor is always accompanied by losses during operation, and these losses will be converted into heat. If the heat cannot be taken away effectively in time, it will inevitably cause the temperature of the motor body to rise. Therefore, effective cooling is of great significance for the safe operation of the motor. [0003] Evaporative cooling technology uses the latent heat of vaporization of the insulating medium to take out the heat inside the motor. It has high safety and good cooling effect, and has been successfully used in the cooling of motors. However, the evaporative cooling horizontal motors designed before are all cooling the stator and rotor separately, that is, the cooling systems of the stator and the rotor are independent, so the motor needs to be equipped with two sets of cooling systems, which make...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/20
Inventor 熊斌顾国彪傅德平国建鸿李振国
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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