Battery Module Integrated Heat Sink and Protruding Cooling Port
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Solution Overview
Problem
Conventional battery modules face challenges in cooling performance due to complex cooling structures and indirect cooling methods, which complicate assembly and reduce space utilization.
Innovation Solution
A battery module design featuring a heat sink integrated with the module frame, with a cooling port protruding upward from the module frame protrusion part, allowing direct refrigerant flow and simplified assembly by eliminating interference with end plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a separate cooling structure (heat sink) is added to improve cooling performance, then cooling efficiency is improved, but device complexity increases and assembly becomes more difficult
Solution Approach 1:
The cooling structure is merged with the module frame to form an integrated assembly. The heat sink is positioned to be in direct thermal contact with the battery cell stack, and the module frame is configured to hold both the battery cells and cooling structure together as a single unit, eliminating the need for separate cooling components
2Strength
If a multi-layered structure (upper plate, module frame bottom part) is used to form space between refrigerant and battery cells, then structural integrity is improved, but cooling performance deteriorates due to indirect cooling
Solution Approach 1:
The intermediate layers (upper plate, module frame bottom part) that were blocking direct thermal contact are removed or reconfigured. The cooling structure is repositioned to eliminate these thermal barriers, allowing the refrigerant to directly contact the battery cell laminate without intervening layers
3Ease of operation
If the cooling structure is assembled before end plates are installed, then cooling port access is improved, but assembly difficulty increases due to interference with end plates
Solution Approach 1:
The assembly process is segmented into distinct stages: first assembling the battery cell stack with the cooling structure, then installing the end plates separately. The module frame protrusion part is designed to allow end plates to be mounted after the cooling structure is in place, avoiding interference between these components during assembly
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 and simplifies the assembly process, improving the overall performance and space utilization of the battery module and pack.
Implementation Method 1
a lower plate 31 having a cooling flow path for connecting the inlet and the outlet
Implementation Method 2
a heat sink 30 that provides a cooling function to a plurality of battery cells 10
Data Source
AI summary
A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells are stacked, a module frame for housing the battery cell stack, end plates for covering front and rear surfaces of the battery cell stack, a heat sink formed on a bottom part of the module frame, and a cooling port configured to supply a refrigerant to the heat sink, the module frame includes a module frame protrusion part, which is extended and formed so as to pass through the end plates on the bottom part of the module frame, and the cooling port is disposed in a shape protruding upward from an upper surface of the module frame protrusion part.