Motor cooling oil way structure

A motor cooling and oil circuit technology, which is applied in the direction of cooling/ventilation devices, electromechanical devices, electrical components, etc., can solve the problems of local hot spots, poor cooling effect of cooling technology, and additional cooling medium needs to be provided, so as to achieve less energy loss , simple structure and low cost
CN112865397AActive Publication Date: 2021-05-28JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2021-05-28

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Abstract

The invention discloses a motor cooling oil way structure. The motor cooling oil way structure comprises a shell oil way, two first cooling oil ways and a second cooling oil way; the shell oil way is arranged in the shell wall of a motor shell; two first cooling oil ways are arranged at the two ends of a rotating shaft of a motor respectively; the second cooling oil way is arranged in a rotor of the motor; the rotor is fixedly connected with the rotating shaft; The outer surface of the shell wall of the motor shell is provided with a first oil inlet and a first oil outlet; the inner surface of the shell wall of the motor shell is provided with a plurality of first oil injection holes and a plurality of first oil return holes; the first oil inlet, the first oil outlet, the first oil injection holes and the first oil return holes are communicated with the shell oil way; one end of each first cooling oil way is communicated with the second cooling oil way; a second oil inlet is formed in the other end of one first cooling oil way; and a second oil outlet is formed in the other end of the other first cooling oil way. The motor cooling oil way structure is good in cooling effect and low in cost; local hot spots do not exist; and oil in a gearbox is adopted as a cooling medium, so that cost is low.
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Description

technical field

[0001] The invention relates to the technical field of motor cooling, in particular to a motor cooling oil circuit structure. Background technique

[0002] With the continuous promotion and popularization of new energy vehicles, the requirements for the development of drive motors are becoming more and more stringent. The future development trend of motors will be high speed, high power density, more compact structure, further improved efficiency, and high integration. The trend; this development trend puts forward higher cooling requirements for the motor, so the future development of the motor needs to adopt a more efficient cooling method.

[0003] At present, the main cooling methods of driving motors are divided into water cooling and oil cooling. Water cooling mainly arranges cooling pipes inside the casing to cool the motor. The main disadvantage is that due to the existence of thermal resistance, there is a temperature gradient from the winding to the...

Claims

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