Low-Voltage Component Mounting for EV Rear Collision Protection
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Solution Overview
Problem
Electric vehicles face the challenge of protecting high-voltage components from damage during rear-end collisions, where low-voltage components can be pushed forward and potentially intrude into high-voltage components.
Innovation Solution
The implementation of a securing system with multiple positioning elements for low-voltage components, including first and second securing portions at different vertical and lateral positions, which apply compressive forces to prevent forward movement and rotation, thereby reducing the risk of intrusion into high-voltage components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the low-voltage component is disposed rearward of the high-voltage component to optimize space utilization, then the space efficiency is improved, but the low-voltage component may be pushed forward in a rear-end collision causing damage to the high-voltage component
Solution Approach 1:
The patent transitions from a single-dimensional (front-rear) securing approach to a multi-dimensional securing system. By positioning securing portions at different vertical heights and lateral positions, the low-voltage component is restrained in multiple spatial dimensions, preventing forward intrusion during rear-end collisions while maintaining compact rearward placement for space efficiency.
Solution Approach 2:
The securing system is divided into multiple independent securing portions distributed at different locations (front, rear, left, right, and varying vertical heights). This segmentation allows each securing portion to independently contribute to restraining the low-voltage component, creating a distributed restraint system that effectively prevents collision damage while maintaining space efficiency.
2Reliability
If the low-voltage component is secured with multiple coupling members to multiple securing portions, then the protection against forward intrusion is improved, but the device complexity increases
Solution Approach 1:
The coupling members are designed as multi-functional components that simultaneously perform multiple functions: mechanical attachment, positional restraint, and collision force absorption. This universal design reduces the need for separate specialized components, maintaining reliability while controlling system complexity.
Solution Approach 2:
Multiple coupling members are merged into a coordinated securing system where the coupling members work together as an integrated unit. The securing portions are combined into a unified restraint architecture, simplifying the overall system while maintaining high protection reliability through cooperative operation of the components.
Data Source
AI summary
An electric vehicle may include a body; a low-voltage component disposed in a rear portion of the body; and at least one coupling member securing the low-voltage component to a plurality of securing portions of the body. The plurality of securing portions may include at least one first securing portion located forward of the low-voltage component in a vehicle front-rear direction and at least one second securing portion located rearward of the low-voltage component in the vehicle front-rear direction. A center of the at least one first securing portion and a center of the at least one second securing portion are located at different positions from each other in a vehicle vertical direction.