Vehicle Power Cable System with U-Shaped Routing
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Solution Overview
Problem
Existing electric vehicle designs do not adequately protect cables and cable connection portions from loads in the front-rear direction during collisions, as they are often exposed in narrow spaces and vulnerable to damage.
Innovation Solution
The vehicle design includes a cable arrangement where the cable connection portion is positioned on one side of the vehicle in the front-rear direction, closer to the other side than the electric equipment's end surface and lower than its uppermost surface, with a U-shaped configuration of wire portions extending along the upper surface of the electric equipment, providing enhanced protection by distributing the load and reducing deflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the cable connection portion is positioned in a narrow space for compact arrangement, then the space utilization is improved, but the cable and cable connection portion become vulnerable to damage from front-rear loads during collisions
Solution Approach 1:
The cable is configured to extend in multiple directions (width direction and front-rear direction) rather than purely in the front-rear direction, utilizing the width dimension to create a U-shaped path that distributes load and reduces vulnerability to front-rear collision forces
Solution Approach 2:
The cable adopts a U-shaped curved configuration instead of a straight line, allowing it to absorb and distribute mechanical loads through its curved geometry, thereby reducing stress concentration at the cable connection portion during front-rear collisions
2Length of moving object
If the cable extends directly from the cable connection portion to the electric equipment in a straight line, then the cable length is minimized, but the cable becomes susceptible to damage from front-rear loads
Solution Approach 1:
The cable path transitions from a one-dimensional straight line to a two-dimensional U-shaped configuration by extending in both the width direction and front-rear direction, achieving both protection and reasonable length through spatial optimization
Solution Approach 2:
The cable configuration changes its geometric parameters by introducing width-direction extension and curvature, transforming it from a straight vulnerable line to a protected U-shaped path that distributes mechanical stress
Data Source
AI summary
A vehicle includes an electric equipment and a cable connected to the electric equipment, a cable connection portion of the electric equipment is disposed on one side of the vehicle in a front-rear direction, and the cable connection portion is disposed closer to the other side in the front-rear direction than an end surface on the one side in the front-rear direction of the electric equipment and at a position lower than an uppermost surface of the electric equipment. The cable includes a first wire portion extending from the cable connection portion to one side of the vehicle in the width direction; a second wire portion continuously extending to the other side in the front-rear direction, and a third wire portion continuously extending to the other side in the width direction, and the cable is disposed along an upper surface of the electric equipment.