Water cooling method and cooling device for motor

Abstract

The invention discloses a water cooling method for a motor, which has a simple process and high cooling efficiency and is easy to implement, and a cooling device with a simple structure. The method comprises the following steps of: arranging a steel barrel of which the surface wall is provided with a groove on a motor shell; winding a spiral pipe which serves as a water jacket on the groove of the steel barrel; and embedding and casting the water jacket into the groove of the steel barrel by using aluminum alloy. The cooling device comprises the steel barrel which is arranged on the motor shell and a spiral pipe which is wound in the groove of the steel barrel, wherein aluminum alloy casting bodies are arranged on the spiral pipe and between the spiral pipe and the steel barrel.

Description

Technical field: [0001] The invention relates to a motor, in particular to a water cooling method for the motor and a cooling device thereof. 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...

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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