Powertrain and electric vehicle

By integrating the fluid outlet, the middle partition, and the mounting surface of the second housing into the powertrain housing structure, the problems of multi-section housing structure and complex oil circuits are solved, achieving simplification of housing structure and improvement of oil circuit reliability, compact component layout, and simplified assembly process.

CN122407768APending Publication Date: 2026-07-17HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Filing Date
2026-04-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The powertrain's multi-section housing structure and oil circuit structure are complex, resulting in complicated installation and insufficient reliability.

Method used

The design adopts a structure that encloses the first shell, the middle partition, and the second shell. By integrating the liquid outlet on the mounting surface of the first shell with the liquid outlet on the mounting surfaces of the middle partition and the second shell, oil output is achieved. This simplifies the shell structure and oil circuit connection, reduces the number of sealing points, and improves the reliability of the oil circuit.

Benefits of technology

The shell structure and oil circuit connection process have been simplified, the reliability of the oil circuit has been improved, and the component layout has been compact and the assembly has been simplified.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122407768A_ABST
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Abstract

The application provides a power assembly and an electric vehicle, and relates to the technical field of electric vehicles. The first shell and the second shell of the power assembly are surrounded to accommodate a partition plate, a driving motor and a speed reducer. The first shell and the partition plate are respectively used for fixing two bearings of the driving motor, and the second shell and the partition plate are respectively used for fixing two bearings of the speed reducer. The first shell comprises a first mounting surface integrated with a first liquid outlet and a second mounting surface integrated with a second liquid outlet. The first mounting surface is in close contact with the partition plate to realize fixed connection and realize butt joint of the first liquid outlet with an internal flow channel of the partition plate. The second mounting surface is in close contact with the second shell to realize fixed connection and realize butt joint of the second liquid outlet with an internal flow channel of the second shell. The two mounting surfaces of the first shell are used to realize the functions of shell assembly and oil passage butt joint, the oil passage structure of the shell is simplified, the number of sealing points is reduced through interface reuse, the reliability of the oil passage is improved, and the assembly process is simplified.
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