Battery Pack Heat Dissipation Plate with Refrigerant Channels
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Solution Overview
Problem
Conventional battery packs face challenges in efficiently dissipating heat generated during charging and discharging operations, leading to potential performance deterioration and safety concerns.
Innovation Solution
A battery pack design incorporating a heat dissipation plate with channels, ribs, and through-holes, made of heat conductive metallic materials like aluminum, which includes a refrigerant flow system to enhance cooling efficiency and structural integrity, and a connection mechanism for adjacent plates to improve heat exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional battery packs are used without specialized heat dissipation structures, then manufacturing costs and structural complexity are reduced, but heat dissipation efficiency deteriorates leading to performance deterioration and safety concerns
Solution Approach 1:
The heat dissipation plate merges multiple functions into a single integrated component: it provides structural support through its plate configuration, creates heat dissipation channels within its body, and forms thermal contact surfaces with battery cells. This integration improves heat dissipation efficiency while avoiding the need for separate cooling systems, thereby controlling structural complexity.
Solution Approach 2:
The heat dissipation plate incorporates internal channels creating a porous-like structure that allows refrigerant flow. These channels are integrated into the plate body, enabling efficient heat transfer from battery cells to the circulating refrigerant without requiring external cooling components, thus improving thermal management while maintaining structural integrity.
2Strength
If heat dissipation plates with channels and ribs are implemented, then heat dissipation and structural integrity are improved, but manufacturing complexity and assembly difficulty increase
Solution Approach 1:
The rib structures are integrated directly into the heat dissipation plate during manufacturing, combining structural reinforcement with thermal management functionality. This eliminates the need for separate reinforcement components and simplifies assembly, as the ribs are already positioned to provide both structural support and define channel geometries.
Solution Approach 2:
The heat dissipation plate is divided into functional zones: ribs for structural support, channels for refrigerant flow, and contact surfaces for thermal transfer. This segmentation allows optimized design of each zone while maintaining manufacturability through standardized production processes for the integrated structure.
3Productivity
If through-holes are added between channels and ribs, then refrigerant flow and heat exchange are enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The through-holes are integrated into the channel structure during plate manufacturing, creating continuous flow paths that connect channels across different plate sections. This integration ensures proper alignment and spacing without requiring post-manufacturing assembly operations, thereby enhancing heat exchange efficiency while controlling precision requirements through unified manufacturing processes.
4Temperature
If connection pipes and connectors are added to link adjacent heat dissipation plates, then cooling efficiency across multiple batteries is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The connection pipes are integrated with the heat dissipation plate structure, merging the cooling function with the structural component. This integration allows adjacent plates to be connected through standardized interfaces that are part of the plate design itself, improving cooling efficiency across multiple batteries while simplifying assembly compared to separate piping systems.
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 solution effectively improves heat dissipation, increases battery safety and performance, reduces weight and manufacturing costs, and minimizes refrigerant leakage, while simplifying assembly and enhancing cooling efficiency.
Implementation Method 1
at least one heat dissipation plate in contact with the battery cell, the heat dissipation plate having at least one channel configured to include a refrigerant
Implementation Method 2
the heat dissipation plate may be configured to have the refrigerant flow through the channel in a first direction or in a second direction opposite to the first direction
Data Source
AI summary
A battery pack includes a battery module having at least one battery cell, and at least one heat dissipation plate in contact with the battery cell, the heat dissipation plate having at least one channel configured to include a refrigerant, a rib arranged to define a frame of the heat dissipation plate, and a through-hole between the channel and the rib.