Battery Case Connection Circuit for Compact EV Power Wiring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing electric vehicle designs face challenges in minimizing the size of the region occupied by electric wires in the battery case, particularly as the distance between the battery case and the motor increases.
Innovation Solution
The electric vehicle incorporates a connection circuit within the battery case where electric power lines extending from the connectors are connected, reducing the volume of the electric wires. This connection circuit is located in an adjacent region close to the connectors, minimizing the wire length and space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric power lines are routed individually from each connector to the motor control unit, then electrical connection reliability is improved, but the region occupied by electric wires increases in size
Solution Approach 1:
The patent combines multiple electric power lines into a single integrated connection circuit structure. The connection circuit includes a first connection portion connecting to the first connector, a second connection portion connecting to the second connector, and a third connection portion connecting to the motor control unit, thereby merging individual wire routing into a unified circuit that reduces the overall region occupied while maintaining reliable electrical connections.
2Adaptability or versatility
If the distance between the battery case and the motor control unit increases, then vehicle design flexibility is improved, but the region occupied by electric wires increases
Solution Approach 1:
The connection circuit is designed to extend in multiple spatial dimensions rather than following a simple linear path. The circuit includes portions that connect to connectors at different positions and route through three-dimensional space to reach the motor control unit, allowing the battery case and motor control unit to be positioned further apart while keeping the wire region compact through optimized spatial routing.
Data Source
AI summary
An electric vehicle includes: an electric motor that generates rotational power by which a driving wheel is driven; a battery case defining a battery accommodating space accommodating at least one battery; connectors that are located in the battery case, accommodated in the battery accommodating space, and electrically connected to respective terminals of the battery; and electric power lines through which electric power of the battery is supplied to the electric motor. The electric power lines include a connection circuit that includes a connection portion where the electric power lines extending from the connectors are connected to each other, the connection portion being located in an adjacent region located adjacent to the connectors.