Battery Pack Cooling Plates for Cell and Busbar Heat Dissipation
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Solution Overview
Problem
The existing cooling systems for battery packs, which rely on passive air cooling for connecting sheets, are inadequate for efficient heat dissipation, leading to overheating issues that affect battery performance and service life.
Innovation Solution
A cooling system comprising a main cooling plate with a first cooling channel and a connecting sheet cooling plate with a second cooling channel, where a cooling medium is introduced to facilitate efficient heat dissipation for both the battery cell and the connecting sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If passive air cooling is used for the connecting sheet, then the structure is simple, but the heat dissipation capability is insufficient
Solution Approach 1:
The cooling system is segmented into two independent cooling plates: a main cooling plate for cooling battery cells and a connecting sheet cooling plate for cooling connecting sheets. Each cooling plate has its own cooling channels and can be independently configured, allowing the system to address different cooling needs of different components without requiring a complex integrated design.
Solution Approach 2:
The connecting sheet cooling plate is specifically designed with cooling channels that match the layout of connecting sheets, providing localized cooling where it is most needed. This allows the system to optimize heat dissipation for the connecting sheets without compromising the cooling of battery cells, addressing the specific thermal management needs of different components.
2Reliability
If a connecting sheet cooling plate is added to cool the connecting sheet, then the heat dissipation effect is improved, but the device complexity increases
Solution Approach 1:
The main cooling plate and connecting sheet cooling plate are merged into a single integrated cooling system that shares common coolant flow paths and control mechanisms. The cooling plates can be arranged in series or parallel configurations, allowing the system to provide enhanced cooling capability while maintaining relatively simple overall structure through unified design and control.
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 proposed cooling system effectively reduces the impact of overheating on battery performance and service life by ensuring timely and efficient heat dissipation for the connecting sheet, thereby enhancing the overall reliability and efficiency of the battery pack.
Implementation Method 1
A cooling medium (for example, a coolant) may be introduced into the first cooling channel in the main cooling plate, to implement heat dissipation and cooling of the battery cell
Implementation Method 2
A cooling medium (for example, a coolant) may be introduced into the second cooling channel in the connecting sheet cooling plate, to implement heat dissipation and cooling of the connecting sheet
Implementation Method 3
efficient heat dissipation can be performed on the connecting sheet in the battery pack through the added connecting sheet cooling plate
Data Source
AI summary
A cooling system for a battery, a battery pack, and a vehicle are provided. The cooling system for a battery comprises a main cooling plate and connecting piece cooling plates. A first cooling channel is provided in the main cooling plate, and the main cooling plate is used for cooling battery cells. The connecting piece cooling plates are provided on the main cooling plate. A second cooling channel is provided in each connecting piece cooling plate. The connecting piece cooling plates are used for cooling connecting pieces.