Motor cooling apparatus

Abstract

The invention discloses a water cooling method and a water cooling apparatus for a motor. The water cooling method is simple in process and easy to implement while the water cooling apparatus is simple in structure and high in cooling efficiency. The method comprises the steps of setting a steel cylinder with a groove in the surface wall on the motor shell, winding the groove of the steel cylinder with a spiral pipe to be used as a water leg, and pre-embedding and casting the water leg into the groove of the steel cylinder through aluminum alloy. The cooling apparatus comprises the steel cylinder arranged on the motor shell, and the spiral pipe which is wound in the groove of the steel cylinder, wherein an aluminum alloy casting body is arranged on the upper surface of the spiral pipe and between the spiral pipe and the steel cylinder.

Description

technical field [0001] The invention relates to a motor, in particular to a motor cooling device. Background technique [0002] In order to improve the reliability, stability and high power density of motors used in some high-temperature and high-feasibility operation requirements, water cooling is usually used to reduce various losses caused by motor operation. The heat generated causes excessive temperature rise and heat generation of the motor; and for the motors used in the recently developed new energy vehicles, it is also required to increase the power density of the motor as much as possible. It can also be achieved by improving the cooling conditions of the motor to make the motor smaller and more efficient; and one of the more common and effective ways to improve the cooling conditions is to use water cooling; while the existing motor The water cooling method is not perfect, and the structure of its implementation device is not reasonable, so that the cooling effec...

AI Technical Summary

Problems solved by technology

[0002] In order to improve the reliability, stability and high power density of motors used in some high-temperature and high-feasibility operation requirements, water cooling is usually used to reduce various losses caused by motor operation. The heat generated causes excessive temperature rise and heat generation of the motor; and for the motors used in the recently developed new energy vehicles, it is also required to increase the power density of the motor as much as possible. It can also be achieved by improving the cooling conditions of the motor to make the motor smaller and more efficient; and one of the more common and effective ways to improve the cooling conditions is to use water cooling; while the existing motor The water cooling method is not perfect, and the structure of its implementation device is not reasonable, so that the cooling effect is not satisfactory; for example, the structure of the water cooling device has the contradiction of small heat dissipation volume and low strength of the machine base; For motors with aluminum welding and steel plate frames, water leakage may be caused by welding quality problems, etc.

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