Stator cooling structure, driving motor and new energy automobile

A technology for cooling structures and stators, which is applied in the field of vehicles to achieve uniform cooling, prolong service life, and avoid uneven cooling.

Pending Publication Date: 2021-09-21
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved in this application is to provide a stator cooling structure, drive motor and new energy vehicle, which can ensure uniform cooling of the windings, avoid the problem of excessive local temperature of the windings, and improve the stability and service life of the motor

Method used

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  • Stator cooling structure, driving motor and new energy automobile
  • Stator cooling structure, driving motor and new energy automobile
  • Stator cooling structure, driving motor and new energy automobile

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Embodiment Construction

[0053] see in conjunction Figure 1 to Figure 5 As shown, according to the embodiment of the present application, the stator cooling structure is used to cool the stator winding 16, the stator cooling structure includes the motor oil inlet 9, the inner ring oil injection structure and the outer ring oil injection structure, and the inner ring oil injection structure is set On the inner peripheral side of the stator winding 16, the oil injection structure of the outer ring is arranged on the outer peripheral side of the stator winding 16. An oil injection hole 10, the outer ring oil injection structure includes a second oil injection hole 45, the opening of the first oil injection hole 10 faces the inner peripheral wall of the stator winding 16, and the opening of the second oil injection hole 45 faces the outer peripheral wall of the stator winding 16 .

[0054] The stator cooling structure is equipped with an oil injection structure on the inner and outer sides of the stator...

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Abstract

The invention provides a stator cooling structure, a driving motor and a new energy automobile. The stator cooling structure is used for cooling a stator winding and comprises a motor oil inlet, an inner ring oil injection structure and an outer ring oil injection structure, the inner ring oil injection structure is arranged on the inner circumferential side of the stator winding, the outer ring oil injection structure is arranged on the outer circumferential side of the stator winding, and the inner ring oil injection structure and the outer ring oil injection structure are both communicated with the motor oil inlet. The inner ring oil injection structure comprises a first oil injection hole, the outer ring oil injection structure comprises a second oil injection hole, an opening of the first oil injection hole faces the inner peripheral wall of the stator winding, and an opening of the second oil injection hole faces the outer peripheral wall of the stator winding. According to the stator cooling structure, uniform cooling of the winding can be ensured, the problem of overhigh local temperature of the winding is avoided, and the stability and the service life of the motor are improved.

Description

technical field [0001] The present application relates to the field of vehicle technology, in particular to a stator cooling structure, a drive motor and a new energy vehicle. Background technique [0002] In recent years, with the vigorous advocacy of national policies, the field of new energy vehicles has developed rapidly, and the competition in the industry has also increased day by day. More and more manufacturers are focusing on the application of oil cooling technology in the main drive motor of passenger cars, in order to improve from a technical point of view. Power density of the main drive system. [0003] At this stage, in order to reduce the volume and save cost of the products of various manufacturers, the scheme adopted is mainly to increase the motor speed and improve the cooling conditions to increase the power density. Increasing the speed of the motor is limited by factors such as bearings, oil seals, and the speed ratio of the matching reducer, which oft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/19H02K5/20H02K3/24
CPCH02K9/19H02K5/20H02K3/24
Inventor 胡余生张小波刘健宁高峰薛家宁赵丹丰
Owner GREE ELECTRIC APPLIANCES INC
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