Cardboard Traction Battery Transport Container Fire Resistance
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Solution Overview
Problem
Transport containers for motor vehicle traction batteries face challenges in handling and storage due to their large size and weight, and there is a high risk of fire, which can cause the container to fail, potentially leading to the ignition of adjacent batteries.
Innovation Solution
A transport container made with cardboard elements, providing better fire resistance and mechanical stability, with a design that includes a carrying floor, ceiling, and side walls, featuring hollow cylindrical cardboard elements and a holding structure for secure assembly, and equipped with a temperature sensor and automatic fire suppression system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metallic transport containers are used, then mechanical strength and structural stability are improved, but fire resistance deteriorates
Solution Approach 1:
The patent employs a composite container structure combining an inner container made of fire-resistant material (such as ceramic or specialized polymer) with an outer metallic container providing mechanical strength. This composite design allows the inner container to resist fire temperatures while the outer container provides structural support and protection during transport.
Solution Approach 2:
The patent utilizes heat-resistant ceramic coatings or polymer films applied to the inner surface of the metallic container. These thin film layers provide fire resistance while maintaining the overall structural integrity and mechanical strength of the metallic container framework.
2Reliability
If cardboard elements are used, then fire resistance is improved, but mechanical stability deteriorates
Solution Approach 1:
The patent uses composite cardboard structures combining traditional cardboard with fire-resistant additives, coatings, or laminations. This creates a material that maintains the fire-resistant properties of cardboard while enhancing its mechanical strength and stability through the composite structure.
Solution Approach 2:
The patent modifies the physical and chemical parameters of cardboard by treating it with fire-retardant chemicals, increasing its density through compression, or altering its fiber structure. These parameter changes enable the cardboard to achieve both fire resistance and adequate mechanical stability for container construction.
3Reliability
If thick cardboard elements are used, then fire resistance is improved, but manufacturing cost increases
Solution Approach 1:
The patent optimizes the thickness parameter of cardboard elements to achieve the minimum required fire resistance rather than using uniformly thick sections throughout. By carefully controlling and varying thickness according to specific structural requirements, the design achieves adequate fire protection while minimizing material consumption and manufacturing costs.
Solution Approach 2:
The patent applies different thicknesses of cardboard elements to different parts of the container structure based on local fire risk and mechanical requirements. Critical areas receiving enhanced fire protection through thicker or specially treated cardboard, while less critical areas use thinner, more cost-effective sections.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The cardboard-based container offers enhanced fire resistance and mechanical stability, allowing it to withstand high temperatures and prevent the spread of fire to adjacent batteries, while the automatic suppression system ensures safety in case of a fire.
Implementation Method 1
the material only melts at significantly higher temperatures and because there is insufficient oxygen supply to burn it only to a small extent and slowly
Implementation Method 2
cardboard allows quick and inexpensive adaptation to new requirements. This applies in particular if, according to the invention, to form the cardboard surface, the ceiling element, the supporting base and/or the side walls have a plurality of separate and parallel, longitudinally extended cardboard elements
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A transport container (10) for a vehicle traction battery (100) is proposed, comprising a base (30) and a ceiling element (60), as well as a plurality of side walls (40) connecting the base (30) and the ceiling element (60). The side walls (40), the base (30), and the ceiling element (60) define a receiving space (12) for the vehicle traction battery (100) with dimensions of at least 100 cm x 40 cm x 15 cm and at most 250 cm x 150 cm x 60 cm. It is further proposed that the base (30), the ceiling element (60), and/or at least one side wall (40) be formed, at least in sections, by a cardboard element (32, 34, 42, 44, 46, 48, 62) with a cardboard surface that delimits the receiving space.