Battery Module Assembly Layout for Bus Bar Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery module assemblies fail to effectively lower the temperature of the entire assembly, leading to localized cooling and decreased cooling efficiency due to the through-bolt process and limited expansion of the cooling flow path.
Innovation Solution
A battery module assembly design featuring a heat dissipation layer positioned between bus bars and a sensing cover, with a cooling plate in contact with the heat dissipation layer, and a through-bolt placement between module assemblies to enhance cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a through-bolt is assembled in the direction of a cell tab to secure the battery module, then the battery module is firmly bound, but the cooling efficiency decreases due to restricted space for the cooling flow path
Solution Approach 1:
The patent separates the fastening function from the cooling function by positioning the through-bolt away from the cooling flow path area. The lower end portion of the battery case is designed with a specific structure that allows the cooling plate to be positioned without interference from the through-bolt, dividing the assembly space into distinct functional zones.
Solution Approach 2:
The through-bolt is positioned in a different spatial dimension relative to the cooling flow path, specifically at the lower end portion away from the cooling plate contact area. This spatial separation allows both the mechanical fastening and thermal management functions to operate independently without interfering with each other.
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 design effectively lowers the temperature of the entire battery module assembly, improves cooling efficiency, and manages temperature deviations, enhancing overall thermal management.
Implementation Method 1
a heat dissipation layer positioned between the at least one bus bar and the sensing cover, and positioned in contact with the cooling plate to dissipate heat occurring in the battery module and the at least one bus bar
Data Source
AI summary
A battery module assembly includes: a battery module formed by staking a plurality of battery cells that respectively include electrode tabs, a cooling plate positioned adjacent to the battery module, and at least one bus bar positioned on a lateral surface of the battery module and electrically connecting the plurality of battery cells to each other. and the battery module also includes a sensing cover positioned to be spaced a predetermined distance from the bus bar and covering the battery module. In particular, a heat dissipation layer is formed between the bus bar and the sensing cover, and the heat dissipation layer is positioned in contact with the cooling plate and dissipates heat occurring in the battery module and the bus bar.