Annular Circuit Motor Controller for Compact Drive Assemblies
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Summary
Problems
Existing motor and motor controller integration in new energy vehicles faces challenges in optimizing connection structures, cooling, and electrical connection layouts, which hinders efficient integration and assembly.
Innovation solutions
A motor controller with an annular circuit layout featuring a laminated busbar assembly, including a circular main circuit board, positive and negative electrode connection plates, and arcuate single-phase connection plates, optimized for compactness and ease of assembly, with capacitors positioned between the connection plates and power transistors arranged circumferentially around the main circuit board.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the motor and motor controller are integrated to reduce footprint, then space utilization is improved, but connection structures and cooling systems become more complex
Why choose this principle:
The patent integrates the motor controller directly onto the motor shaft, merging two previously separate components into a single unified assembly. This reduces the overall footprint while the standardized connection interfaces and integrated cooling channels simplify the connection structures and cooling systems, resolving the complexity issue
Principle concept:
If the motor and motor controller are integrated to reduce footprint, then space utilization is improved, but connection structures and cooling systems become more complex
Why choose this principle:
The drive assembly is designed with universal connection structures that serve multiple functions: electrical connections, mechanical mounting, and cooling fluid pathways all through integrated interfaces. This multi-functionality reduces the number of separate connection structures needed, simplifying the overall system while maintaining compact integration
Application Domain
Data Source
AI summary:
A motor controller with an annular circuit layout featuring a laminated busbar assembly, including a circular main circuit board, positive and negative electrode connection plates, and arcuate single-phase connection plates, optimized for compactness and ease of assembly, with capacitors positioned between the connection plates and power transistors arranged circumferentially around the main circuit board.
Abstract
The present disclosure relates to the field of new energy, and provides a motor controller with an annular circuit layout, a drive assembly, and a vehicle. The motor controller includes a laminated busbar assembly and multiple power transistors, wherein the laminated busbar assembly a main circuit board, a positive electrode connection plate, a negative electrode connection plate, and a three-phase connection plate assembly. In the present disclosure, the main circuit board is provided with a connection position in a center thereof, and a control circuit position, a first soldering position, and a second soldering position, which are each annular and arranged around the connection position in sequence, so that connection terminals are centrally arranged, and the central control circuit has a relatively large space. The annular circuit layout improves the structural coordination with the drive assembly.