Battery Module Cooling Tray With Conductive Adhesive
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Solution Overview
Problem
Conventional battery modules face challenges in achieving effective cooling efficiency and simplified assembling structures due to resistance elements in the heat conduction path and the need for separate fixing structures, which can lead to heat accumulation and reduced energy density.
Innovation Solution
A battery module design featuring a cooling tray with a thermally conductive adhesive solution to securely position can-type secondary batteries, eliminating the need for a separate fixing structure and enhancing thermal conductivity by filling the accommodation space with a thermally conductive adhesive solution and using a tray cover with cooling sockets to improve heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate fixing structure is added to the housing to securely hold the secondary battery cells, then the mechanical stability and electrical connection reliability are improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The housing is designed to integrate both the fixing structure and the cooling structure into a single unified component. The fixing protrusions are formed directly on the housing body, eliminating the need for separate fixing frames or additional fastening components. This merging of functions reduces assembly steps while maintaining mechanical stability.
Solution Approach 2:
The housing serves multiple functions simultaneously: it provides mechanical support and fixation through integrated protrusions, thermal management through embedded cooling channels, and structural protection. This multi-functionality eliminates the need for separate dedicated fixing components, simplifying the overall assembly structure.
2Reliability
If a TIM (thermal interface material) is used at the interface between the housing and heatsink to reduce contact resistance, then the thermal conduction efficiency is improved, but the device complexity and assembly steps increase
Solution Approach 1:
The cooling channels are integrated directly into the housing structure, eliminating the need for a separate TIM layer between the housing and heatsink. The housing itself becomes the thermal interface, reducing assembly steps while maintaining effective heat transfer through direct metal-to-metal contact.
Solution Approach 2:
The TIM component is completely removed from the assembly by integrating the cooling function directly into the housing. This extraction of the intermediate thermal interface material simplifies the structure while the housing's own thermal properties and direct heatsink contact compensate for the removed TIM's function.
3Quantity of substance
If the secondary battery cells are densely arranged in a compact space to increase energy density, then the space utilization is improved, but the heat dissipation efficiency deteriorates due to restricted cooling pathways
Solution Approach 1:
The cooling channels are designed to extend in multiple dimensions within the housing, creating a three-dimensional thermal management network. This allows efficient heat dissipation even with dense battery packing, as the cooling pathways utilize vertical and lateral spaces that would otherwise be unused, maintaining thermal performance despite high cell density.
Solution Approach 2:
The housing is divided into multiple cooling zones with separate channels corresponding to different battery cell groups. This segmentation allows targeted cooling of specific high-heat areas while maintaining dense overall packing, as each zone can be optimized independently for its local thermal load.
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 and simplifies the assembling process by maximizing thermal contact between the batteries and the cooling tray, reducing thermal resistance and enhancing the stability and cooling performance of the battery module.
Implementation Method 1
a thermally conductive adhesive solution filled in the accommodation space of the cooling tray... improving thermal conductivity by filling the accommodation space with a thermally conductive adhesive solution... reducing thermal resistance
Implementation Method 2
The heatsink 3 is a cooling device for suitably keeping the temperature of secondary battery cells during charging and discharging... may absorb heat from the secondary battery cells 1 through the housing 2
Implementation Method 3
absorb heat from the secondary battery cells 1 through the housing 2
Implementation Method 4
the heatsink 3 may be configured so that a coolant flows therein, and may absorb heat from the secondary battery cells 1 through the housing 2
Data Source
AI summary
A battery module includes a plurality of can-type secondary batteries; a cooling tray formed in a container shape and having an accommodation space capable of accommodating the plurality of can-type secondary batteries; a heatsink having a hollow structure in which a coolant flows, the heatsink being disposed in contact with an outer surface of the cooling tray; and a thermally conductive adhesive solution filled in the accommodation space of the cooling tray, wherein the plurality of can-type secondary batteries are arranged such that a lower portion thereof is immersed in the thermally conductive adhesive solution.