Battery Module Terminal Heat Pipe for Axial Cooling Assembly
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Solution Overview
Problem
Conventional battery module cooling systems are inefficient and power-consuming, particularly for cylindrical battery cells, as they attempt to cool radially rather than axially, leading to increased power loss and assembly complexity due to the need for terminal orientation switching during assembly.
Innovation Solution
The integration of a heat pipe positioned in proximity to the terminal components of the battery module, combined with multi-layer contact plates that allow for axial cooling and simplified assembly by having both positive and negative terminals on the same end, reducing the need for terminal orientation switching and enabling direct axial cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional radial cooling systems are used for cylindrical battery cells, then cooling coverage is provided, but cooling efficiency is poor and power consumption is high
Solution Approach 1:
The patent inverts the conventional cooling approach by switching from radial cooling to axial cooling. The terminal components are designed with heat dissipation structures that conduct heat axially from the battery cell terminals, reversing the traditional cooling direction to achieve better thermal management efficiency and lower power consumption.
Solution Approach 2:
The terminal components serve dual functions: electrical connection and heat dissipation. By integrating heat dissipation structures into the terminal components, the invention eliminates the need for separate cooling systems, reducing overall system complexity and power consumption while improving cooling efficiency.
2Ease of manufacture
If terminal orientation switching is required during assembly, then battery cells can be connected, but assembly complexity increases
Solution Approach 1:
The patent employs terminal components with identical structures for both positive and negative terminals. This homogeneity allows all battery cells to be assembled in the same orientation without requiring terminal switching, significantly simplifying the assembly process and reducing assembly complexity.
Solution Approach 2:
The terminal components are pre-designed with integrated heat dissipation structures and standardized configurations before assembly. This preliminary design ensures that no additional orientation adjustments or modifications are needed during the assembly process, streamlining manufacturing operations.
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
This configuration enhances cooling efficiency, reduces power consumption, and simplifies the assembly process by allowing direct axial cooling and maintaining efficient current distribution within the battery module.
Implementation Method 1
a first heat pipe positioned in proximity to the first terminal component and configured to transfer heat away from the first terminal component
Data Source
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AI summary
A battery module, including a plurality of battery cell groups that are connected in series with each other, each of the plurality of battery cell groups including a plurality of battery cells that are connected to each other in parallel, a first terminal component at a first terminal of the battery module, the first terminal corresponding to either a positive terminal of the battery module or a negative terminal of the battery module, and a first heat pipe positioned in proximity to the first terminal component and configured to transfer heat away from the first terminal component.