Electric machine, electric drive assembly and vehicle
By placing the bearing section inside the rotating shaft and sharing the vertical space with the rotary transformer section in the motor, the problems of reducing the size and stability of the motor in a limited space are solved, resulting in a smaller and more stable motor design.
CN224503055UActive Publication Date: 2026-07-14ZHEJIANG GEELY HLDG GRP CO LTD +2
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GEELY HLDG GRP CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-14
AI Technical Summary
Technical Problem
Existing motors are difficult to reduce in size without affecting performance in the limited space inside a vehicle, and their long shafts are prone to bending and twisting, making installation and maintenance inconvenient.
Method used
The bearing section is placed in a fixed space inside the shaft section, and the rotary transformer section overlaps with the bearing section to shorten the shaft length and share space in the vertical direction.
Benefits of technology
It saves space, reduces weight, improves installation convenience and stability, reduces vibration levels, and enhances the compactness and reliability of the motor.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224503055U_ABST
Abstract
The application relates to an electric machine, an electric drive assembly and a vehicle. The electric machine comprises a rotating shaft part, a bearing part and a resolver. The rotating shaft part is inwardly recessed on the side to form a fixing space, the bearing part is fixed in the fixing space, the resolver is fixed outside the rotating shaft part, and a projection of the resolver on the bearing part is at least partially arranged to overlap the bearing part. Since the bearing part is arranged in the fixing space inside the rotating shaft part, the length of the rotating shaft required for originally arranging the bearing part and the resolver side by side outside the rotating shaft part can be shortened to only the length of the resolver. Such a design can save space and reduce weight on the one hand, so that the volume of the electric machine is smaller and more suitable for limited space installation conditions. On the other hand, such an arrangement can make the originally empty space in the vertical direction full, so that the structure of the electric machine is more compact and smaller, further suitable for limited space installation conditions.
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