Air-cooled phase-change cooling motor

Abstract

The invention discloses an air-cooled phase-change cooling motor. The air-cooled phase-change cooling motor comprises a motor shell, a motor stator, a motor rotor, an evaporation pipe, a stator condenser, a rotor condenser, a working medium accommodating cavity and a fan; the stator condenser is provided with a working medium inlet and a working medium outlet; the mounting position of the stator condenser is higher than that of the evaporation pipe; the evaporation pipe penetrates the motor stator, one end of the evaporation pipe is communicated with a working medium inlet of the stator condenser, and the other end of the evaporation pipe is communicated with a working medium outlet of the stator condenser; the sealed working medium accommodating cavity is formed in the motor rotor shaft;a rotor condenser is arranged at one end of the motor rotor shaft, and an inlet and an outlet of the rotor condenser are both communicated with the working medium containing cavity; and a fan for blowing air to the stator condenser is arranged below the stator condenser. The air-cooled phase-change cooling motor is compact in structure, good in safety, high in reliability, excellent in isothermy and low in power consumption.

Description

technical field [0001] The invention relates to the technical field of motor cooling, in particular to an air-cooled phase-change cooling motor. Background technique [0002] The main function of the high-voltage motor is to generate driving torque and drive various machines. As a power source for electrical appliances or various machines, it is widely used in the electromechanical field. A high-voltage motor usually includes a stator and a rotor. During the operation of the high-voltage motor, the stator and the rotor will generate a large amount of heat. If the temperature is too high, it will easily cause damage or malfunction. [0003] The traditional cooling method for high-voltage motors is to use tube-and-tube heat exchangers to perform wall-to-wall convection heat exchange for the circulating air in the motor. The cold source is the external air of the motor, and the air is introduced into the heat exchange tube through the motor shaft tail fan for forced convection...

AI Technical Summary

Problems solved by technology

[0005] For example, the Chinese patent with the application number: 201710686484.3 discloses a motor phase change cooling system, which includes a motor stator and a motor rotor arranged in the motor, and also includes a seawater cooler and a stator phase change working medium pipeline. The stator phase change The inside of the working fluid pipeline is filled with phase-change working fluid, and the stator phase-change working fluid pipeline includes a stator evaporation section and a stator condensation section, the stator evaporation section is fixed on the motor stator, and the stator condensation section is connected to The stator evaporating section and the seawater cooler; this application improves the heat dissipation effect of the motor and prolongs the service life of the motor through the combination of the motor and the phase change cooling system, but the application uses two seawater coolers and two The fan takes up a lot of space, has high power consumption and many consumables, which is not conducive to large-scale promotion

[0006] Another example is that the application number is: the Chinese patent of 201720085727.3 discloses a cooling device, including a hollow shell, characterized in that: the outer walls of the left and right ends of the shell are respectively provided with a left air inlet and a right air inlet, front and rear The side walls on both sides are respectively provided with a front air outlet and a rear air outlet, and the housing is provided with two positive plates, and the two positive plates divide the housing into a left chamber and a towel room which are independent of each other along the length direction. chamber and right chamber; the left air inlet is communicated with the left chamber, the right air inlet is communicated with the right chamber, the front air outlet and the rear air outlet are communicated with the middle chamber: the bottom wall of the housing corresponds to the left chamber , the middle chamber and the right chamber are respectively provided with ventilation ducts; this application avoids the tear flow of the hot and cold airflow by realizing the isolation of the cold airflow entering the motor and the outgoing hot airflow, and prevents the hot airflow from being cooled again. Bring it back to the motor to improve the heat dissipation effect of the high-voltage motor; but this application takes up a lot of space, high power consumption and more consumables

[0007] Another example is that the Chinese patent application number is: 201710719091.8 discloses a heat pipe generator air-cooled cooling device, including a generator, the generator includes a stator, a rotor and a shaft, the rotor is in rotation with the shaft, and the stator is arranged on the rotor It is characterized in that: it also includes a fan, a heat exchanger assembly, a wind guide cover and a cooling assembly, the cooling assembly is arranged on the outer periphery of the stator of the generator, and the outlet of the fan communicates with one end of the heat exchanger assembly , the wind guide cover communicates with the other end of the heat exchanger assembly; A liquid port and a liquid outlet; the cooling assembly includes a cooling shell and an evaporating tube, the cooling shell is provided with a plurality of evaporating tubes, and the cooling shell is fixedly connected to the outer periphery of the stator of the generator; the heat exchanger assembly The liquid outlet of each condensing pipe is respectively connected with the corresponding evaporating pipe in the cooling shell, and the condensing pipe and the evaporating pipe form a heat pipe; this application improves the heat exchanger efficiency of the cooler by using the heat dissipation method of the heat pipe; in addition, The external cooling air flows on the outside of the condensing pipe. After fouling, you only need to open the heat exchanger shell to clean it; however, the safety of this application cannot be guaranteed, and it takes up a lot of space

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