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Motor Oil Cooling System

A technology for oil cooling system and motor cooling, which is applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of increasing the structural complexity and processing requirements of the gearbox casing, and achieves simplification of structural design and manufacturing and reduction of processing. desired effect

Active Publication Date: 2019-06-14
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing oil cooling system generally needs to add an oil groove on the gearbox casing, which increases the complexity of the structure of the gearbox casing and the processing requirements

Method used

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Embodiment Construction

[0024] The motor oil cooling system according to the present invention is mainly used to cool the motor of the electric drive gearbox, and is particularly suitable for, but not limited to, the motor cooling of the electric drive gearbox in hybrid vehicles or other new energy vehicles, and is particularly suitable for The motor is integrated in the electric drive gearbox housing.

[0025] In the present invention, the term "electrically driven gearbox" includes the electrically driven gearbox housing and the components contained in the internal space defined by the electrically driven gearbox housing; the term "electrically driven gearbox housing" refers to The solid material body of the electric drive gearbox housing or the housing wall made of materials; the term "in the electric drive gearbox housing" refers to the internal space defined by the electric drive gearbox housing.

[0026] The following reference is attached Figure 1 to 4 The preferred embodiments of the present inve...

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Abstract

Provided is a motor oil cooling system for cooling a motor. The motor is integrated into the internal space defined by a gearbox housing, the motor includes a stator and defines an axial direction and a circumferential direction, the motor oil cooling system includes an oil supply pipeline arranged outside the gearbox housing and an oil injection pipeline arranged in the internal space, the oil injection pipeline includes an axial injection pipe penetrating through the gearbox housing and being in fluid communication with the oil supply pipeline and a first annular oil injection pipe and a second annular oil injection pipe in fluid communication with the axial injection pipe, the axial injection pipe is arranged above the stator of the motor and extends in the axial direction and includes a plurality of first nozzles on the side, facing the motor, of the axial injection pipe, the first annular oil injection pipe and the second annular oil injection pipe respectively extend around the outer circumferences of the opposite ends of the stator of the motor and include a plurality of second nozzles and a plurality of third nozzles on the inner sides facing the center axis.

Description

Technical field [0001] The invention relates to a motor oil cooling system, in particular to a motor oil cooling system for a hybrid electric vehicle electric drive gearbox. Background technique [0002] Hybrid electric vehicles are the direction of future automobile development. The electric drive gearbox integrated motor is used as another power source. The cooling of the motor has always been a challenge in this field. [0003] Existing hybrid vehicles generally use a water cooling system or an oil cooling system to cool the motor located in the electric drive gearbox housing. Since the electric drive gearbox needs lubricating oil to lubricate its gear shaft, the use of a water cooling system to cool the motor will require two different structures for the electric drive gearbox, an oil circuit system and a water cooling system, which increases the structure of the electric drive gearbox. Complexity. Using an oil cooling system to cool the motor can integrate the motor and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/19
Inventor 葛海龙徐珊珊徐斌郭华刘芳纪小庄
Owner SAIC MOTOR
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