Battery Thermal Protection Pipe Joint for Cooling and Fire Suppression
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Solution Overview
Problem
Battery cells in electronic devices often experience heat accumulation, leading to elevated temperatures and potential fires, with existing thermal protection systems failing to effectively control temperature and extinguish fires in a timely manner.
Innovation Solution
A thermal protection component comprising a pipe with a flow channel for a cooling medium, integrated with a joint featuring a snap-in member and reinforcing ribs, which supports the pipe while maintaining a flow area for efficient heat exchange and allows the pipe to be fused and spray cooling medium during fires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the pipe is fully inserted into the joint for strong support, then the pipe support strength is improved, but the flow area is reduced and heat exchange efficiency deteriorates
Solution Approach 1:
The support structure is segmented into multiple snap-in ends distributed around the joint's inner wall, rather than a single continuous support. This segmentation allows the pipe wall to be supported at multiple discrete points while leaving gaps between the snap-in ends that maintain adequate flow area for cooling medium passage.
2Strength
If the snap-in member occupies more space in the joint, then the pipe support is improved, but the flow area and cooling medium flow rate are reduced
Solution Approach 1:
The snap-in member is designed with a specific geometry where the support function is concentrated at the snap-in ends that contact the pipe wall, while the body of the snap-in member occupies minimal space. This local concentration of support function allows effective pipe support with minimal interference to the flow area.
3Strength
If the pipe wall is completely inserted into the joint, then the connection strength is improved, but the flow channel area is blocked
Solution Approach 1:
Instead of completely inserting the pipe wall into the joint, the design uses partial insertion where the pipe wall engages with the snap-in ends to provide sufficient support and connection strength. This partial engagement is excessive enough to ensure structural integrity while leaving adequate space for the flow channel to remain open.
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 solution effectively regulates battery cell temperatures, ensures efficient heat exchange, and rapidly extinguishes fires by fusing the pipe and spraying the cooling medium, enhancing safety and performance in battery-powered devices.
Implementation Method 1
The cooling medium flows in the flow channel to exchange heat with battery cells through the pipe
Implementation Method 2
when an open flame occurs in the battery cells, the pipe can be fused and the cooling medium in its interior is sprayed at a fire point of the battery cells for fire extinguishing and protection
Data Source
AI summary
The present application discloses a thermal protection component, a battery, and an electric apparatus. The thermal protection component comprises a pipe body and joints; a flow channel for a cooling medium to flow is formed in the pipe body; a clamping component is provided on an inner wall of each joint; the clamping component is provided with a plurality of clamping end portions; the end portions of the pipe body are inserted into the joints; each clamping end portion extends into the interior of the pipe body; and a part of the pipe wall of the pipe body is inserted between each clamping end portion and the inner wall of the joint.