Motor cooling apparatus

Abstract

The invention discloses a water cooling method and a cooling device for a motor with simple process, easy implementation, simple structure and high cooling efficiency. The method includes setting a steel cylinder with a groove on the surface wall on the motor casing, winding a spiral tube on the groove of the steel cylinder as a water jacket, and pre-embedding the water jacket on the steel cylinder with aluminum alloy. in the groove of the cylinder. The cooling device comprises a steel cylinder arranged on the motor casing, a spiral tube wound in a groove of the steel cylinder, and an aluminum alloy casting body is arranged on the spiral tube and between the spiral tube 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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