Water-cooled motor

A technology of water-cooled motors and motor shafts, which is applied to electrical components, electromechanical devices, electric components, etc., can solve problems such as unreliable reliability, reduced motor life, and increased failure probability, so as to improve safety and reliability, and reduce temperature. rise, the effect of suppressing temperature rise

Inactive Publication Date: 2013-04-03
HUBEI TEZHONG MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive temperature will increase the probability of failure of parts such as sealing elements and bearings, which will greatly reduce the life of the motor, and the reliability cannot be guaranteed

Method used

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  • Water-cooled motor

Examples

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Embodiment Construction

[0015] figure 1 Among them, the motor shaft 2 and the stator 7 are placed in the housing 6 . The motor shaft 2 is mounted on the housing 6 through the left bearing 5 and the right bearing 9 . Both ends of the motor shaft 2 are provided with a left sealing body 1 and a right sealing body 12 . The inside of the motor shaft 2 has a cooling water passage running through the inside of the motor shaft 2 , and the cooling water passage has interfaces respectively connected with the left rotary joint 4 and the right rotary joint 10 arranged at both ends of the motor shaft 2 . There is a left cooling water interface 3 on the left rotary joint 4 and a right cooling water interface 8 on the right rotary joint 10 . The cooling water can enter from the left cooling water interface 3 and flow out from the right cooling water interface 8, or can enter from the right cooling water interface 8 and flow out from the left cooling water interface 3.

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Abstract

The invention provides a water-cooled motor which comprises a shell, a stator and a motor shaft, wherein the motor shaft is provided with a cooling water channel; the cooling water channel is provided with a hollow cavity in the motor shaft, and the two ends of the motor shaft are respectively provided with a left rotating joint and a right rotating joint; and the hollow cavity of the motor shaft is respectively communicated with the left rotating joint and the right rotating joint through through-holes of the two ends of the motor shaft. The water-cooled motor provided by the invention has the advantages that the internal temperature of the water-cooled motor is effectively improved, especially the temperature of the motor shaft, the service life of the motor is prolonged, and security and reliability of the motor are improved.

Description

technical field [0001] The invention relates to a water-cooled motor. Background technique [0002] It is inevitable to generate heat when the water-cooled motor is running, but severe heat will cause some negative effects. For example, the different thermal expansion coefficients of various parts inside the motor lead to changes in structural stress and small changes in the internal air gap, which will affect the dynamic response characteristics of the motor. When the temperature rise of the motor suddenly increases or the temperature exceeds the maximum operating temperature, it indicates that the motor has failed. In order to effectively solve the problem of overheating, it is necessary to design a cooling system in the motor. [0003] The cooling method of water-cooled motors is usually to carry out cooling and heating cycles inside the motor shell to reduce the temperature of the motor itself. This method can effectively reduce the temperature rise near the shell, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/19
Inventor 张刚刘洪
Owner HUBEI TEZHONG MOTOR
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