Battery Pack Cooler Layout for Junction Box Thermal Sharing
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Solution Overview
Problem
Existing power storage devices require a dedicated cooler for cooling the junction box, which increases complexity and cost.
Innovation Solution
A power storage device design where a single cooler is in thermal contact with both the power storage cells and the junction box, eliminating the need for a dedicated cooler for the junction box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a dedicated cooler is provided for cooling the junction box, then the junction box can be cooled effectively, but the device complexity and cost increase
Solution Approach 1:
The patent combines the power storage cell cooler and junction box cooler into a single integrated cooler that serves both functions. The cooler is configured with a first cooling portion in thermal contact with the power storage cell and a second cooling portion in thermal contact with the junction box, eliminating the need for separate cooling systems and reducing overall device complexity.
Solution Approach 2:
The single cooler is designed to perform multiple cooling functions simultaneously - it cools both the power storage cell and the junction box through its different cooling portions. This multi-functional design replaces what would traditionally require two separate cooling systems, thereby reducing complexity while maintaining effective temperature management for both components.
2Temperature
If a dedicated cooler is provided for cooling the junction box, then the junction box cooling is ensured, but the manufacturing cost increases
Solution Approach 1:
By merging the junction box cooling function into the existing power storage cell cooler, the patent reduces the total number of cooling components required. This consolidation decreases manufacturing costs by eliminating redundant parts and simplifying the assembly process, while still ensuring adequate cooling of the junction box through the second cooling portion.
3Device complexity
If a single cooler cools both power storage cells and junction box, then the device complexity is reduced, but the thermal contact configuration becomes more challenging
Solution Approach 1:
The cooler is segmented into distinct cooling portions - a first cooling portion for thermal contact with the power storage cell and a second cooling portion for thermal contact with the junction box. This segmentation allows each portion to be optimized for its specific thermal contact requirements, making the overall configuration more manageable despite the multi-functional nature of the single cooler.
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
Efficient cooling of both power storage cells and junction box by a single cooler, reducing complexity and cost while maintaining effective temperature management.
Implementation Method 1
The cooler is in thermal contact with both the at least one power storage cell and the junction box
Data Source
AI summary
A power storage device includes: at least one power storage cell; an upper cover disposed above the at least one power storage cell; a cooler disposed above the upper cover to cool the at least one power storage cell; and a junction box provided above the upper cover. The cooler is in thermal contact with both the at least one power storage cell and the junction box.