Battery Module Cooling Member With Direct-Contact Heat Conduction
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Solution Overview
Problem
Conventional battery modules face inefficiencies in manufacturing and cooling due to the use of additional heat conductive members, which lengthen heat transfer paths and reduce manufacturing process efficiency.
Innovation Solution
A battery module design that couples a cooling member directly to the upper frame where secondary batteries are mounted, eliminating the need for additional heat conductive members and allowing for direct contact between batteries and the cooling member, thereby enhancing cooling efficiency and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling plate is interposed between the module case and heatsink, then heat conduction is facilitated, but the heat transfer path is lengthened and heat conduction efficiency is reduced
Solution Approach 1:
The invention removes the cooling plate from the heat conduction path between the module case and heatsink. By eliminating this intermediate component, the heat transfer path is shortened and heat conduction efficiency is improved while maintaining effective cooling through direct thermal contact between the module case and heatsink.
Solution Approach 2:
The invention merges the cooling function directly into the module case structure by forming a cooling fin structure that integrates with the case. This integration eliminates the need for separate cooling plates and reduces the number of components in the heat conduction path.
2Reliability
If a cooling plate is welded to the module case and heatsink, then thermal connection is established, but components are likely to thermally deform and manufacturing process efficiency is reduced
Solution Approach 1:
The invention removes the welding process from the assembly of cooling components. By eliminating the cooling plate that requires welding, the invention avoids thermal deformation issues and simplifies the manufacturing process while maintaining reliable thermal connection through direct contact between the module case and heatsink.
Solution Approach 2:
The cooling function is merged into the module case as an integrated structure, eliminating the need for separate welding operations to assemble cooling components. This integration reduces manufacturing complexity and avoids thermal deformation associated with welding.
3Strength
If multiple members are welded together to form the cooling structure, then structural integrity is achieved, but the number of manufacturing steps increases and process efficiency is lowered
Solution Approach 1:
The invention merges the cooling structure with the module case into a single integrated component. This reduces the number of separate members that would otherwise need to be welded together, thereby maintaining structural integrity while significantly reducing the number of manufacturing steps and improving process efficiency.
Solution Approach 2:
The module case is designed to serve multiple functions: it provides structural housing and simultaneously acts as a heat dissipation component through integrated cooling fins. This multi-functionality eliminates the need for separate cooling components and their associated welding 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 design improves cooling efficiency by eliminating intermediate heat transfer barriers and reduces manufacturing costs and time by minimizing the number of parts required, thus enhancing overall performance and efficiency.
Implementation Method 1
a cooling member (220) coupled to one surface of the upper frame (221), wherein a coolant channel (D) is provided in the other surface of the upper frame (221), and a lower frame (226) coupled to the other surface of the upper frame (221), wherein the plurality of secondary batteries (210) directly contact the upper surface of the cooling member (220)
Data Source
Figure 1
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AI summary
Disclosed is a battery module with improved manufacturing efficiency and improved cooling efficiency. The battery module includes a plurality of secondary batteries; and a cooling member configured so that the plurality of secondary batteries are mounted thereto, and the cooling member includes an upper frame having a plate shape with a predetermined length so that the plurality of secondary batteries are mounted to one surface thereof; and a lower frame coupled to the other surface of the upper frame and having a coolant channel configured so that a coolant flows therethrough.