Liquid cooling motor

Abstract

The invention relates to a liquid cooling motor, comprising a rotor (5), a rotation shaft (1), a shell (2), a front cover (3) and a rear cover (4); the rotor (5) is arranged in the shell (2); the front cover (3) and the rear cover (4) are respectively arranged at two ends of the shell (2); the front end of the rotation shaft (1) passes through the front cover (3); the rotation shaft (1) is internally provided with a circular cooling liquid passage (101); and the rotation shaft (1) is provided with a liquid inlet (102) and a liquid outlet (103) which are communicated with the circular cooling liquid passage (101). Compared with the prior art, the rotation shaft is internally provided with the circular cooling liquid passage, therefore, heat of the rotor of the motor can be directly dissipated by cooling the rotation shaft in a liquid cooling way.

Description

technical field [0001] The invention relates to electric machines, in particular liquid-cooled electric machines. Background technique [0002] At present, the electric motor has been widely used in various fields as the power source of the power drive device. When the motor is running or in a high-temperature environment, it will generate heat by itself or by external heat radiation. If it is not dissipated in time, it will directly affect the operating life of the motor. [0003] In order to solve the above problems, people have invented a liquid-cooled motor, which uses water cooling to dissipate heat from the motor. Existing liquid-cooled motors, such as the "water-cooled high-temperature resistant fan" disclosed by CN2632362Y, the "water-cooled high-temperature resistant motor" disclosed by CN2544459Y, the "low-noise liquid-cooled motor equipment" disclosed by CN1852007A, etc. The cover is provided with a cooling liquid cavity, through which the cooling liquid dissipa...

AI Technical Summary

Problems solved by technology

Existing liquid-cooled motors, such as the "water-cooled high-temperature resistant fan" disclosed by CN2632362Y, the "water-cooled high-temperature resistant motor" disclosed by CN2544459Y, the "low-noise liquid-cooled motor equipment" disclosed by CN1852007A, etc. The cover is equipped with a cooling liquid chamber, through which the heat is dissipated. Although the heat dissipation effect is very good, it cannot directly dissipate heat to the rotor of the motor. The heat of the rotor of the motor cannot be dissipated in time, which also seriously affects the operating life of the motor.

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