Underfloor Battery Connector Protector With Collision Release Structure
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Solution Overview
Problem
Existing vehicle underfloor structures with batteries disposed under the floor are prone to damage during front collisions, as the protector connected to the body or frame can move rearward and collide with the battery or connector, causing deterioration or damage.
Innovation Solution
A vehicle underfloor structure featuring a protector with a fastening member attached to the body or frame, which includes a fastening hole and a cutout allowing separation from the protector during a collision, along with a rear slope surface and alternating raised and recessed parts to prevent deformation and reduce collision loads, ensuring the protector disconnects from the battery and connector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the fastening member securely fastens the protector to the body or frame, then structural stability is improved, but during collision the fastening member prevents the protector from separating causing damage
Solution Approach 1:
The fastening member incorporates a release mechanism that maintains secure fastening during normal operation but automatically releases during collision. The movable connector can move relative to the battery, allowing the fastening member to disengage from the protector when collision force is applied, thus providing both structural stability and collision protection reliability.
Solution Approach 2:
The connector design includes a preliminary release mechanism that anticipates collision forces. When collision occurs, the movable portion of the connector automatically moves to release the fastening member from the protector, preventing the protector from transmitting collision forces to the battery or connector, thereby ensuring protection reliability during collision while maintaining structural stability during normal operation.
Data Source
AI summary
A vehicle underfloor structure includes a battery having at least one connector projecting from a front end of the battery, and a protector covering and protecting the at least one connector from below, the protector having a rear portion attached to the battery and a front portion fastened to an attachment bar by a fastening bolt. The protector includes a fastening hole through which the fastening bolt is inserted, and a cutout connected to a rear portion of the fastening hole and allowing the fastening bolt to separate from the protector.