Battery Cooling Side Plate With Variable Swelling Accommodation
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Solution Overview
Problem
Existing cooling structures fail to meet the varying swelling demands of different regions of batteries, leading to reduced service life.
Innovation Solution
A deformable cooling structure with varying deformable amounts across its side plate, allowing it to adapt to the different degrees of swelling in battery regions, ensuring adequate swelling space and maintaining contact for efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the cooling structure uses a rigid side plate with uniform deformability, then the manufacturing precision and structural stability are improved, but the service life is reduced because it cannot meet the varying swelling demands of different battery regions
Solution Approach 1:
The side plate is designed with non-uniform deformability through varying thickness distribution, where the central region has greater thickness and lower deformability while edge regions have smaller thickness and higher deformability. This local quality variation allows different regions of the side plate to provide appropriate resistance forces matching the swelling characteristics of corresponding battery regions, thereby extending service life while maintaining manufacturing feasibility.
2Device complexity
If the cooling structure provides consistent deformability across the surface, then the structural simplicity is maintained, but the adaptability to different swelling demands of battery regions is reduced
Solution Approach 1:
The side plate incorporates local quality variations through a thickness distribution design where different regions have different thicknesses. The central region has larger thickness providing smaller deformability and greater resistance force, while edge regions have smaller thickness providing larger deformability and smaller resistance force. This design achieves adaptability to varying swelling demands without significantly increasing structural complexity, as it maintains a single integrated plate structure.
3Adaptability or versatility
If the side plate is made more deformable to accommodate battery swelling, then the swelling space is improved, but the contact pressure for heat dissipation is reduced
Solution Approach 1:
The side plate uses non-uniform thickness distribution to create local quality variations in deformability. The central region with larger thickness provides greater resistance force to maintain contact pressure for heat dissipation, while edge regions with smaller thickness provide larger deformability to accommodate swelling. This resolves the contradiction by allowing the structure to provide both swelling accommodation and adequate contact pressure simultaneously through spatially varying properties.
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 deformable cooling structure extends the service life of batteries by allowing regions to swell adaptively, reducing adverse suppression and improving safety and reliability.
Implementation Method 1
a cooling channel disposed on at least one side of the side plate... allowing a cooling medium to flow through... the cooling medium to take away heat from the cooled component
Implementation Method 2
the side plate is configured to be deformable toward the side where the cooling channel is located, producing a deformable amount, where the deformable amount varies at different positions of the side plate
Data Source
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AI summary
This application provides a cooling structure, a battery, and an electric apparatus. The cooling structure includes a side plate and a cooling channel disposed on at least one side of the side plate, and the side plate is configured to be deformable toward the side where the cooling channel is located, producing a deformable amount, where the side plate has varying deformable amounts in at least one direction. The side plate is deformable toward the side where the cooling channel is located, producing a deformable amount, where the deformable amount varies at different positions of the side plate. A side surface of a cooled component in contact with the side plate exhibits different degrees of swelling, and the different degrees of swelling exert different magnitudes of resistance force on different regions of the side plate. The varying deformable amounts on the side plate provide swelling spaces required for the different degrees of swelling, allowing the cooled component to swell differently according to changes in internal stress, thereby maintaining the normal service life or extending the service life of the cooled component.