Dual-motor assembly, power assembly and vehicle
The cooling medium flows through the intermediate shaft channel of the dual-motor assembly arranged through the coaxial line, combined with the control of the on-off device, which solves the problem of unreasonable cooling flow path of the dual-motor assembly and achieves efficient cooling and volume reduction.
CN223451764UActive Publication Date: 2025-10-17BYD CO LTD +1
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Patent Information
- Application Number
- CN202422415104.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Technical Problem
The existing dual-motor assembly has unreasonable cooling flow path planning when running at high speed, resulting in severe heat generation, complex structure, and large space occupation.
Method used
A first motor and a second motor are coaxially arranged, and a first channel and a second channel are connected by an intermediate shaft, through which the cooling medium flows. The flow is controlled by an on-off device, the cooling flow path is simplified, and the rotor is directly cooled through the end plate flow channel.
Benefits of technology
Efficient cooling of the dual-motor assembly is achieved, the volume is reduced, the cooling effect is improved, and the cooling flow path layout is simplified.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a dual-motor assembly, a power assembly and a vehicle, and the dual-motor assembly comprises a first channel which is used for the flowing of a cooling medium; and the first motor and the second motor comprise intermediate shafts, the intermediate shafts are motor shafts of the first motor and the second motor, the intermediate shafts are provided with second channels, and the second channels are communicated with the first channels. The cooling medium flows out of the first channel and then flows into the second channel arranged on the intermediate shaft to cool the motor, the cooling flow path is simple in arrangement, and the size of the dual-motor assembly is reduced.
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