Driving assembly, driving system and automobile

By setting the connected second oil passage and oil hole in the motor shaft of the drive assembly, the effective flow and distribution of cooling lubricating oil is achieved, the problem of poor cooling and lubricating effect in the prior art is solved, and the motor rotor is improved Cooling and lubrication effect avoids damage to parts caused by friction and overheating.

CN222515228UActive Publication Date: 2025-02-21GUANGZHOU AUTOMOBILE GROUP CO LTD
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Patent Information

Application Number
CN202420272463.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-04
Publication Date
2025-02-21
Estimated Expiration
2034-02-04

AI Technical Summary

Technical Problem

The existing drive assembly has poor cooling and lubrication effect, which causes the motor rotor to overheat and the motor shaft, increasing the complexity and cost of the equipment.

Method used

A driving assembly is designed, wherein the motor shaft is provided with a second oil passage arranged in the axial direction and an oil hole arranged in the radial direction. The second oil passage is in communication with the first oil passage and the oil hole, and the motor rotor is The sleeve is arranged outside the motor shaft corresponding to the oil hole, so as to achieve effective flow and distribution of cooling lubricating oil.

Benefits of technology

Through this design, cooling lubricating oil can effectively flow into the motor shaft and be thrown to the motor rotor by centrifugal force, improving the cooling and lubrication effect, avoiding damage to parts caused by friction and overheating of the motor rotor and the motor shaft, reducing the complexity of the equipment and cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222515228U_ABST
    Figure CN222515228U_ABST
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Abstract

The utility model provides a driving assembly, a driving system and an automobile. The driving assembly comprises a first shell, a motor shaft and a motor rotor. A first oil duct is arranged in the first shell; the first end of the motor shaft is installed on the first shell, a second oil channel arranged in the axial direction and an oil hole arranged in the radial direction are formed in the motor shaft, the second oil channel is communicated with the first oil channel and the oil hole, and the motor rotor is arranged outside the motor shaft corresponding to the oil hole in a sleeving mode. According to the utility model, the cooling lubricating oil flows into the second oil duct of the motor shaft from the first oil duct of the first shell, the motor shaft rotates to generate centrifugal force, and the cooling lubricating oil can be thrown to the motor rotor from the second oil duct through the oil hole, so that the motor rotor can be cooled and lubricated conveniently, and the cooling and lubricating effects are improved; parts are prevented from being damaged due to overheating caused by friction between the motor rotor and the motor shaft, and safe use is guaranteed.
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