Compact water-cooling three phase asynchronous motor

Abstract

The invention provides a compact water-cooling three-phase asynchronous motor, belonging to the field of motor technology, in particular to a motor cooling system. The motor cooling system has the main technical characteristic that the cooling device adopts composite cooling of air and water; the cooling system comprises an internal circulation wind passage and a water circulation passage; a water jacket is sheathed outside the stator core of the motor and consists of an internal water jacket and an external water jacket; a water passage is arranged between the internal water jacket and the external water jacket; the water passage is a radial spiral water passage or an axial reciprocating water passage; one end of the water passage is provided with a water inlet and the other end of the water passage is provided with a water outlet; the cooling water drainage passage is arranged right below the motor and connected with the water passage; a cooling wind passage is arranged between the external water jacket and the shell of the motor; and two ends of the cooling wind passage are respectively provided with a wind inlet and a wind outlet. The motor has small volume, low production cost and good heat dissipation effect, and increases the power by more than two times compared with other motors of the same volume.

Description

technical field [0001] The invention belongs to the technical field of electric motors, in particular to a cooling system for electric motors. technical background [0002] The existing motor cooling methods include air cooling, water cooling, and air-water mixed cooling. The cooler is two separate bodies, and the cooler is placed above the motor, which is bulky and expensive to manufacture; the water cooling device of the existing motor has no cooling air duct, and only relies on heat conduction to cool the outside of the motor stator, the cooling effect is poor, and there is no cooling water Exhausting the channels affects the long-term use, storage and maintenance of the motor, and shortens the service life of the motor. Contents of the invention [0003] The invention provides a compact water-cooled three-phase asynchronous motor, which reduces the volume, reduces the manufacturing cost, improves the heat dissipation effect and prolongs the service life of the motor. ...

AI Technical Summary

Problems solved by technology

[0002] The existing motor cooling methods include air cooling, water cooling, and air-water mixed cooling. The cooler is two separate bodies, and the cooler is placed above the motor, which has a large volume and high manufacturing cost; the existing water cooling device for the motor has no cooling air duct, and only relies on heat conduction to cool the outside of the motor stator, the cooling effect is poor, and there is no cooling water Exhausting the channels affects the long-term use, storage and maintenance of the motor and shortens the service life of the motor

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