Fuse Box Bracket Layout to Prevent Battery Pack Short Circuits
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Solution Overview
Problem
Conventional battery packs face the risk of secondary accidents due to direct contact between a fuse and a structure when a short circuit occurs, leading to potential fires or other hazards.
Innovation Solution
A battery pack design featuring a nonconductive fuse with a conductive edge, housed within a nonconductive fuse box and supported by a metal fuse box bracket, where the nonconductive central portion of the fuse aligns with a projecting portion of the bracket to prevent direct contact and electrical conduction, even when the fuse box melts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fuse is provided to connect battery modules, then electrical connection between modules is achieved, but direct contact between fuse and structure during short circuit causes secondary accidents
Solution Approach 1:
A nonconductive support structure is introduced as an intermediary between the fuse and the battery module structure. This support structure prevents direct contact between the fuse and conductive surfaces, eliminating the risk of secondary short circuits while maintaining electrical connectivity function
Solution Approach 2:
The support structure is divided into multiple segments including a first support structure, second support structure, and third support structure. These segmented components work together to provide comprehensive insulation and positioning for the fuse, ensuring safety while maintaining modularity
2Reliability
If a fuse box is provided to protect the fuse, then fuse protection is achieved, but assembly complexity increases
Solution Approach 1:
The fuse box is integrated with the support structure by forming the support structure within the fuse box cavity. This merging eliminates the need for separate support components while maintaining protective enclosure and positioning functions, thereby reducing assembly complexity
Solution Approach 2:
The fuse box serves multiple functions simultaneously: it provides protective enclosure for the fuse, acts as a support structure for positioning, and maintains electrical insulation. This multi-functionality reduces the number of separate components needed
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
Prevents secondary accidents by ensuring the fuse and structure do not directly contact, maintaining electrical isolation and facilitating easy assembly and secure support of the fuse box.
Implementation Method 1
the fuse (400) includes a central portion (411) made of an electrical nonconductor and an edge portion (412) made of an electrical conductor
Implementation Method 2
a fuse box (500) provided at an outer surface of the fuse (400), the fuse box (500) being made of a nonconductive material
Implementation Method 3
a projecting portion (621) is formed on the flat portion (620) so as to project upwards by a predetermined height, wherein the central portion (411) of the fuse (400) is located on the same vertical line as the projecting portion (621) of the fuse box bracket (600)
Data Source
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AI summary
The present invention relates to a battery pack having a fuse box bracket for short circuit prevention, and more particularly a battery pack configured such that two or more unit modules (200) are electrically connected to each other, the battery pack including a fuse (400) interposed between connection terminals (300) extending from the unit modules (200); and a fuse box bracket (600) located under the fuse (400), wherein the fuse (400) includes a central portion (411) made of a nonconductor and an edge portion (412) made of a conductor.