Battery Cooling Side Plate With Flow Channels and Expansion Buffer
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Solution Overview
Problem
Existing battery cell cooling structures are inadequate for fast charging conditions, as they primarily dissipate heat from the bottom and struggle to manage heat generated from all surfaces, leading to potential overheating and structural instability.
Innovation Solution
A cooling component with a cooling side plate featuring integrated cooling flow channels and buffer cavities that dissipate heat from the side surfaces of battery cells while providing a buffer for expansion, ensuring structural stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling plate is placed only at the bottom of battery cells to dissipate heat, then the structure is simple, but the heat dissipation effect is insufficient for fast charging conditions
Solution Approach 1:
The patent transitions from single-bottom cooling to multi-dimensional cooling by adding side cooling plates that extend along the length of the battery cell. This dimensional expansion allows heat dissipation from both bottom and side surfaces, significantly improving thermal management effectiveness for fast charging applications.
Solution Approach 2:
The cooling system is segmented into distinct functional parts: a bottom cooling plate and multiple side cooling plates. Each segment is equipped with independent flow channels, allowing distributed heat dissipation across different surfaces of the battery cell, thereby enhancing overall cooling efficiency.
2Temperature
If cooling flow channels are added to the side plate to improve heat dissipation, then heat dissipation performance improves, but the battery cell expansion buffer capability is reduced
Solution Approach 1:
The patent merges two previously separate functions into a single integrated side cooling plate: heat dissipation through flow channels and expansion buffering through buffer cavities. This combination allows the structure to simultaneously manage thermal loads and accommodate battery cell expansion during charging cycles.
Solution Approach 2:
The side cooling plate is designed as a multi-functional component that performs both cooling and structural support functions. The buffer cavities provide expansion space while the flow channels provide thermal management, making the single component universally useful for both thermal and mechanical requirements.
3Temperature
If the cooling side plate only contains flow channels for heat dissipation, then heat dissipation is effective, but it cannot provide buffer for battery cell expansion
Solution Approach 1:
The patent merges two previously separate functions into a single integrated side cooling plate: heat dissipation through flow channels and expansion buffering through buffer cavities. This combination allows the structure to simultaneously manage thermal loads and accommodate battery cell expansion during charging cycles.
Solution Approach 2:
The side cooling plate is designed as a multi-functional component that performs both cooling and structural support functions. The buffer cavities provide expansion space while the flow channels provide thermal management, making the single component universally useful for both thermal and mechanical requirements.
4Temperature
If multiple cooling components are used to achieve multi-faceted heat dissipation, then heat dissipation effectiveness improves, but the device complexity increases
Solution Approach 1:
The patent merges two previously separate functions into a single integrated side cooling plate: heat dissipation through flow channels and expansion buffering through buffer cavities. This combination allows the structure to simultaneously manage thermal loads and accommodate battery cell expansion during charging cycles.
Solution Approach 2:
The side cooling plate is designed as a multi-functional component that performs both cooling and structural support functions. The buffer cavities provide expansion space while the flow channels provide thermal management, making the single component universally useful for both thermal and mechanical requirements.
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 dissipates heat from multiple surfaces of battery cells, preventing deformation and ensuring structural integrity during fast charging by combining heat dissipation with expansion buffering.
Implementation Method 1
the cooling side plate abuts on and is thermally conductively connected to one side of the whole of the battery cells; wherein the cooling side plate includes a flow channel part and a buffered part, the flow channel part is provided with one or more cooling flow channels, each cooling flow channel is used to circulate cooling medium
Implementation Method 2
the buffer cavity arranged in the buffered part provides a buffer for the battery cell when the battery cell is heated and expanded, so as to prevent obvious deformation of a battery cell structure
Data Source
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AI summary
The present application provides a cooling component and a battery pack. The cooling component include: a cooling bottom plate supporting bottoms of a battery cell; and a cooling side plate bent and connected to one side of the whole of the cooling bottom plate, and the cooling side plate abuts on and is thermally conductively connected to one side of the battery cell. The cooling side plate includes a flow channel part and a buffered part. The flow channel part is provided with one or more cooling flow channels. Each cooling flow channels is used to circulate the cooling medium. The buffered part is provided with a buffer cavity, and the buffer cavity extends along a length direction of the cooling side plate.