Electric assembly and vehicle provided with the same
By integrating motor windings and bridge arms into the battery pack's self-heating circuit, the electric assembly addresses low-temperature efficiency issues, reducing components and cost while improving heating and efficiency.
JP2025524912AInactive Publication Date: 2025-08-01BYD CO LTD
6 Cites 0 Cited by
Patent Information
- Application Number
- JP2025503483
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-08-18
- Filing Date
- 2023-07-28
- Publication Date
- 2025-08-01
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Technical Problem
The charge-discharge efficiency of battery packs is low in low-temperature conditions, and the additional use of a positive temperature coefficient (PTC) heating member increases the number of components and cost in electric assemblies.
Method used
The electric assembly integrates the three-phase windings of the motor and bridge arms of the electric control module into the self-heating circuit of the battery pack, eliminating the need for a separate PTC heating member.
Benefits of technology
This approach reduces the number of components, cost, and volume while improving the self-heating capability of the battery pack, enhancing efficiency and service life.
✦ Generated by Eureka AI based on patent content.
Abstract
A vehicle provided with an electrical assembly and comprising a box body, an N-line connection assembly, a motor, an electric control module, and a DC connector. The box body comprises an electric control cavity. One end of the N-line connection assembly is suitable for being connected between two battery packs connected in series. The motor comprises a three-phase winding, and one end of the three-phase winding is a joining end, and the joining end is connected to the other end of the N-line connection assembly. The electric control module comprises an IGBT module, the IGBT module comprises a three-phase bridge arm, and the other end of the three-phase winding is connected to the midpoint of the three-phase bridge arm. The positive electrode of the DC connector is connected to the joining end, and the negative electrode of the DC connector is suitable for being connected to the IGBT module and to the negative electrode of the battery pack.
Need to check novelty before this filing date? Find Prior Art