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A liquid-cooled hub motor and motor vehicle

An in-wheel motor, liquid cooling technology, applied in electric components, electromechanical devices, electrical components, etc., can solve the problems of high damage risk, large environmental impact, unstable sealing ring effect of liquid cooling system, etc., to reduce loss and thermal expansion. Influence reduction effect

Active Publication Date: 2020-09-01
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem solved by the invention is that the sealing ring effect of the liquid cooling system of the hub motor is unstable, it is greatly affected by the environment, and the risk of damage during the installation process is too high

Method used

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  • A liquid-cooled hub motor and motor vehicle
  • A liquid-cooled hub motor and motor vehicle
  • A liquid-cooled hub motor and motor vehicle

Examples

Experimental program
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Embodiment Construction

[0024] The first embodiment of the present invention is as figure 2 and image 3 shown.

[0025] Such as figure 2 As shown, the liquid-cooled hub motor of the present invention includes a housing 1, a cooling liquid jacket 2 with a radially protruding fixed part arranged in the housing, a motor 8 arranged inside the cooling liquid jacket 2, and a motor 8 arranged on the inside of the casing. The first sealing ring 3 and the second sealing ring 5 between the housing 1 and the cooling liquid jacket 2, and the bolts 4 for axially tightening the fixing part to fix the cooling liquid jacket 2 and the housing 1 , the cover plate 7 arranged on the axial side of the housing 1 and the cooling liquid jacket 2 and fixed with the housing 1 by bolts, and the circumferential direction between the cooling liquid jacket 2 and the cover plate 7 The third sealing ring 6. The first sealing ring 3 is arranged on the innermost side of the cooling liquid jacket 2 (the leftmost side in the fig...

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Abstract

The invention relates to a liquid cooling type in-wheel motor and a motor vehicle. The liquid cooling type in-wheel motor comprises a shell, a cooling fluid sleeve, a motor and a press cover; the cooling fluid sleeve is coaxially arranged in the shell; the motor is coaxially arranged in the cooling fluid sleeve; the press cover is arranged at the side surface of the shell and axially presses the cooling fluid sleeve; a first sealing ring and a second sealing ring are arranged between the cooling liquid sleeve and the shell; the first sealing ring, the second sealing ring, the cooling fluid sleeve and the shell form a cooling fluid cavity; and the first sealing ring and the second sealing ring are pressed axially by the cooling fluid sleeve and the shell. The sealing rings are axially arranged, so that sealing control and production assembly can be facilitated, and precision control requirements of radial size of the shell and the cooling fluid sleeve and possibility of damage in a production process can be decreased.

Description

technical field [0001] The invention relates to a hub motor of a motor vehicle, in particular to a liquid-cooled hub motor, and also relates to a motor vehicle using the hub motor. Background technique [0002] In-wheel motor technology, also known as in-wheel motor technology, is a technology that places the motor used to drive the car inside the wheel rim and outside the wheel hub. Its biggest feature is the integration of power, transmission and braking devices into the wheel hub. Therefore, the mechanical part of the electric vehicle is greatly simplified. Generally, a four-wheeled vehicle will install an in-wheel motor in each of the four wheels. Due to the limited space, the heat generated by the motor is often difficult to dissipate by itself, and a special cooling system is required. The liquid cooling system is more commonly used because the heat dissipation efficiency is higher than that of the air cooling system. [0003] Liquid-cooled hub motors in the prior ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/193
Inventor 黄超西维奥·赞姆泽蔡向阳樊晓旭
Owner SCHAEFFLER TECH AG & CO KG
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