Battery Pack Frame Cooling With Side Flow Paths
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery packs require effective cooling solutions to maintain driving stability and extend the lifespan and durability of high-voltage battery cells, particularly in electric vehicles.
Innovation Solution
A battery pack design that cools three surfaces of battery cells using a base plate with integrated refrigerant flow paths and a frame portion with side surface flow paths, including inflow and discharge paths, and a refrigerant guiding portion to circulate refrigerant effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a battery pack generates high voltage by stacking multiple battery cells, then the power output increases, but the heat generation increases and cooling effectiveness deteriorates
Solution Approach 1:
The patent transitions from conventional single-surface cooling to multi-surface cooling by adding side surface flow paths to the frame portion. This dimensional expansion of the cooling system allows refrigerant to contact and cool the side surfaces of battery cells in addition to the bottom surface, effectively addressing the increased heat generation from high-voltage configurations without requiring a complete system redesign
2Device complexity
If conventional cooling systems are used for high-voltage battery packs, then the structure remains simple, but the cooling coverage is insufficient
Solution Approach 1:
The frame portion is designed to serve dual functions: it provides structural support for the battery pack while simultaneously housing side surface flow paths for refrigerant circulation. This multi-functional design enhances cooling coverage without proportionally increasing structural complexity, as the same structural elements perform both support and thermal management roles
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
Enhances cooling efficiency, extending the lifespan and improving durability of the battery pack by effectively cooling the battery cells from multiple surfaces.
Implementation Method 1
the base flow path is configured to circulate a refrigerant to cool the battery cells
Implementation Method 2
the base flow path is configured to circulate a refrigerant to cool the battery cells
Implementation Method 3
the frame portion forms an accommodation space for accommodating the battery cells and a side surface flow path connected to the base flow path through which the refrigerant is configured to flow
Implementation Method 4
the frame portion forms an accommodation space for accommodating the battery cells and a side surface flow path connected to the base flow path through which the refrigerant is configured to flow
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A battery pack (100) includes a base plate (10) in which two or more battery cells (11) are in contact with a first surface of the base plate and a base flow path (20) through which a refrigerant that cools the battery cell circulates is in the base plate; and a frame portion (30) in which two or more frames (31, 33, 35, 37) are coupled to each other at an upper side of the first surface of the base plate to form an accommodation space for accommodating the battery cells and a side surface flow path (311) through which the refrigerant flows in and out by being connected to the base flow path is formed therein.