Multi-Layer Battery Pack Cooling Plate for Thin High-Capacity Layouts
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Solution Overview
Problem
Existing battery packs face challenges in reducing thickness while maintaining high space utilization and effective cooling, leading to potential heat-related issues and reduced service life.
Innovation Solution
A battery pack design featuring at least two layers of battery modules with a liquid cooling assembly between them, comprising first and second cooling flow channels formed by interconnected plates, enhancing targeted cooling and eliminating the need for additional support brackets, thereby improving space utilization and cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a bracket is used to separate battery modules in multiple layers, then the battery modules can be properly separated and supported, but the size of the battery pack in the thickness direction increases and space utilization rate decreases
Solution Approach 1:
The patent merges the support function and cooling function into a single integrated component. The cold plate serves both as a structural support element that separates battery modules between layers and as a cooling component that dissipates heat. This eliminates the need for separate support brackets, thereby reducing battery pack thickness while maintaining both mechanical stability and thermal management.
Solution Approach 2:
The cold plate is designed to perform multiple functions simultaneously: it provides structural support to maintain separation between battery module layers, acts as a thermal management system to cool the batteries, and serves as a mounting structure for temperature sensors. This multi-functionality reduces the overall number of components needed, decreasing thickness while improving space utilization.
2Quantity of substance
If battery modules are arranged in multiple layers to increase capacity, then the energy storage capacity increases, but the space utilization rate decreases due to increased thickness
Solution Approach 1:
By integrating the support and cooling functions into the cold plate, the patent eliminates redundant structural components that would increase thickness. This allows battery modules to be arranged in multiple layers more compactly, increasing capacity while minimizing the thickness penalty associated with multi-layer configurations.
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 reduces the battery pack's thickness, enhances cooling effectiveness, prevents thermal runaway, and prolongs the service life by maintaining optimal temperature conditions for the batteries.
Implementation Method 1
a liquid cooling assembly, disposed between adjacent two ones of the at least two layers of the battery modules and including a first plate, a second plate, and a third plate, wherein the second plate is located between the first plate and the third plate, a first cooling flow channel is formed between the first plate and the second plate, a second cooling flow channel is formed between the second plate and the third plate
Data Source
AI summary
Provided is a battery pack including at least two layers of battery modules and a liquid cooling assembly. A liquid cooling assembly includes a first plate, a second plate, and a third plate, wherein the second plate is located between the first plate and the third plate, a first cooling flow channel is formed between the first plate and the second plate, a second cooling flow channel is formed between the second plate and the third plate, and communication or discommunication between the first cooling flow channel and the second cooling flow channel is formed between the second plate and the third plate.