Hybrid Vehicle Firewall and Cable Guide for Fuel Tank Protection
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Solution Overview
Problem
Hybrid vehicles require a fire-resistant protection device to prevent fire spread towards the fuel tank while also supporting and guiding high-voltage cables, which existing solutions fail to address simultaneously.
Innovation Solution
A multifunctional firewall protection device comprising a connecting piece mounted on the fuel tank and a guide structure that cooperates with a sliding joint, supporting and guiding cables, with a metal or plastic design for robustness and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate fire-resistant protection device and cable support system are installed, then fire protection and cable guidance are both provided, but device complexity and installation space increase
Solution Approach 1:
The patent combines the fire-resistant protection device and cable support structure into a single integrated component. The protection device includes both fire-resistant material layers and an integrated cable support structure with receiving channels, eliminating the need for separate cable trays or mounting brackets while maintaining both fire protection and cable guidance functions
Solution Approach 2:
The protection device is designed to perform multiple functions simultaneously: fire resistance, cable support, cable guidance, and structural mounting. The integrated design allows a single component to replace what would traditionally require multiple separate parts, reducing overall system complexity
2Ease of operation
If cable trays and fasteners are installed to hold cabling, then cable positioning is ensured, but installation complexity and number of components increase
Solution Approach 1:
The cable support structure is merged into the fire-resistant protection device itself. The protection device includes integrated receiving channels and positioning features that directly guide and hold cables, eliminating the need for separate cable trays, brackets, or fasteners while ensuring proper cable positioning
3Reliability
If the protection device structure is made robust to prevent fire spread, then fire resistance is improved, but weight and material usage increase
Solution Approach 1:
The protection device uses composite material construction with multiple layers including fire-resistant materials and structural components. This layered composite approach provides adequate fire resistance and structural strength while optimizing weight by using appropriate materials for each functional requirement rather than over-engineering with单一 heavy materials
Data Source
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AI summary
Fire protection device (10) for a hybrid motor vehicle, the protection device (10) being characterized in that it comprises, on the one hand, a connecting piece (11) adapted to be mounted in a fixed position on a fuel tank (4) intended to supply a thermal engine of the motor vehicle, said connecting piece (11) having a receiving area (110) configured to receive a fixing tab (40) of the tank (4) so as to be able to rigidly connect said tank (4) and said protection device (10), and characterized in that the protection device (10) comprises, on the other hand, a guide structure (12) comprising a receiving portion (121) configured to receive at least one cable (2) intended to be connected to an electric battery of a hybrid motor vehicle.