Battery Frame Flow Space Design for Flame Path Extension
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Solution Overview
Problem
Existing battery devices face issues with external flame exposure and secondary ignition due to limitations in the length of the flow path for discharging gas, leading to potential damage to surrounding components.
Innovation Solution
A battery device design featuring a frame member with a flow space that includes a first flow path in the cover or bottom member and a second flow path in the side member, connected through an opening, extending the length of the flow path and potentially forming zigzag or tornado shapes to delay or prevent flame exposure, along with a flame blocking member to further minimize external flame discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the flow space is formed only in the side wall member, then the device complexity is reduced, but the flow path length is insufficient causing flame exposure externally
Solution Approach 1:
The flow space is segmented into two distinct locations: a first flow space formed in the side wall member and a second flow space formed in either the cover member or bottom member. These segmented flow spaces are connected to form a continuous flow path, thereby increasing the overall flow path length without requiring a single complex structure
Solution Approach 2:
The flow path transitions from a single-plane configuration to a multi-dimensional configuration by utilizing both the side wall member and the cover member or bottom member. This spatial distribution across different components creates a longer, more effective flow path that prevents flame exposure
2Reliability
If the flow path length is increased to prevent flame exposure, then safety is improved, but the device complexity increases
Solution Approach 1:
The flow space functionality is merged across multiple existing structural components (side wall member, cover member, or bottom member) rather than creating a separate dedicated flow path structure. This integration achieves extended flow path length and improved safety while utilizing the existing structural framework
Solution Approach 2:
The cover member or bottom member serves dual purposes: maintaining the structural enclosure of the battery device and simultaneously forming a flow space for gas discharge. This multi-functionality increases safety without adding dedicated safety components
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 extended flow path effectively delays or prevents external flame exposure and reduces the risk of secondary ignition, while improving the structural rigidity of the battery device by distributing the flow path through multiple sections.
Implementation Method 1
a flow space so that a gas or flames generated in the battery cell flow
Data Source
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AI summary
A battery device includes a cell assembly having a plurality of battery cells, and a frame member having a bottom member, a cover member, and a side member connecting the bottom member and the cover member to form an accommodating space for accommodating at least one cell assembly therein. The frame member comprises a flow space therein so that the gas or flames generated in the cell assembly flow, the flow space comprises a first flow space formed in any one of the cover member and the bottom member and a second flow space formed in the side member, and the first flow space and the second flow space are connected to each other.