A through-type liquid-cooled self-circulation drive motor

A driving motor, self-circulation technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of low heat exchange efficiency, narrow operating temperature range, increase the size and weight of the motor and its cooling system, and improve heat exchange. Efficient and effective

Active Publication Date: 2011-12-07
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the demand for drive or traction motors is more and more prominent in terms of power density, especially for drive motors used in electric and hybrid vehicles. Due to the use conditions and the limited operating temperature range of power electronic devices, it is difficult to meet high power density. Require
The existing motor is either air-cooled or simple liquid-cooled for the outer

Method used

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  • A through-type liquid-cooled self-circulation drive motor
  • A through-type liquid-cooled self-circulation drive motor
  • A through-type liquid-cooled self-circulation drive motor

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Example Embodiment

[0023] A through-type liquid-cooled self-circulation drive motor of the present invention will be described in detail below with reference to the embodiments.

[0024] like figure 1 , 2 As shown, the drive motor of the present invention includes a motor front end cover 1, a motor rear end cover 11, a housing 2, a stator assembly 3, a rotor assembly 9, a special-shaped sleeve 15, a transmission main shaft 6 and a sealed front bearing 16. , Sealed bearing 8 and other components. The rotor assembly 9 and the special-shaped sleeve 15 are installed on the transmission main shaft 6, and the two ends of the transmission main shaft 6 are assembled on the front end cover 1 of the motor and the rear end cover 11 of the motor through the sealed front bearing 16 and the sealed rear bearing 8, and the front and rear ends of the motor are covered with bolts 19 is connected to the housing 2.

[0025] The front and rear end covers of the motor are respectively provided with a front end coo...

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Abstract

The invention provides a through liquid-cooling self-circulation driving motor which comprises a motor front end cover, a motor rear end cover, a shell, a stator assembly, a rotor assembly, an irregular sleeve, a main driving shaft, a sealing front bearing, a sealing rear bearing and a cavity. The technical scheme provided by the invention is characterized in that cooling liquid is capable of self-circulation; the requirement of the driving motor with high power density on large-capacity cooling can be met through the through liquid-cooling manner, the heat exchanging efficiency is remarkably improved, and the stator assembly and the rotor assembly of the motor are cooled simultaneously; the magnetic circuit is hardly influenced by the cooling liquid; the flow rate and the pressure of the cooling liquid can be adjusted and optimized through adjustment of the sizes of a rotor impeller, a cooling liquid inlet and a cooling liquid outlet, and the cooling requirements of all parts are met; the motor has a compact structure and light weight, and has higher resistance to shock vibration as the rotor is soaked in the cooling liquid; and a cooling liquid channel is of a streamline form. The flow resistance of the cooling liquid is reduced, that is to say, the energy consumed in self circulation of the cooling liquid is reduced, the efficiency of the driving motor is improved, and the like.

Description

technical field [0001] The invention belongs to the field of drive motors, and in particular relates to a through-type liquid-cooled self-circulation drive motor that can meet the requirements of high power density. Background technique [0002] At present, the demand for drive or traction motors is more and more prominent in terms of power density, especially for drive motors used in electric and hybrid vehicles. Due to the use conditions and the limited operating temperature range of power electronic devices, it is difficult to meet high power density. Require. The existing motor is either air-cooled or simple liquid-cooled for the outer shell. The addition of components such as fans and pumps directly increases the size and weight of the motor and its cooling system. In terms of heat dissipation, only local heat dissipation can be achieved, and the heat exchange efficiency is very low. It restricts the performance of the motor's high torque and high power working area, a...

Claims

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Application Information

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IPC IPC(8): H02K9/19H02K5/20
Inventor 孟磊
Owner CHINA NORTH VEHICLE RES INST
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