Battery Pack Cooling Plate Structure for Stable Layered Modules
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Solution Overview
Problem
Traditional battery packs with single-layer modules have insufficient space utilization and energy density, and adding a fixing frame for structural stability complicates the design and fails to meet lightweight requirements.
Innovation Solution
A battery pack design with a cooling plate assembly that divides the case into two accommodation spaces, supporting energy storage units, and incorporates supporting members to enhance structural stability and cooling efficiency, while maintaining a simple structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixing frame is added to support upper battery modules in a laminated structure, then structural stability is improved, but device complexity increases and lightweight design requirements are not met
Solution Approach 1:
The patent merges the support function and cooling function into a single component - the cooling plate. The cooling plate not only provides thermal management for the battery modules but also serves as the support structure for upper layers, eliminating the need for separate fixing frames and reducing overall structural complexity.
Solution Approach 2:
The cooling plate is designed to perform multiple functions simultaneously: it acts as a thermal management component for cooling battery modules, a structural support element for upper battery layers, and a space divider creating distinct accommodation spaces. This multi-functionality resolves the contradiction by eliminating redundant components.
2Stability of the object's composition
If a fixing frame is added to support upper battery modules, then structural stability is improved, but weight increases and lightweight design requirements are not met
Solution Approach 1:
By combining the support function with the cooling plate, the patent eliminates the need for additional fixing frame materials. The cooling plate itself, made of thermally conductive material, provides structural support without requiring separate metal frames, thereby reducing overall weight while maintaining stability.
3Device complexity
If single-layer battery module structure is used, then structure is simple, but space utilization and energy density are insufficient
Solution Approach 1:
The patent transitions from a single-layer horizontal arrangement to a multi-layer vertical laminated structure by utilizing the Z-direction (height direction). The cooling plate divides the battery pack into multiple accommodation spaces stacked vertically, effectively using three-dimensional space and increasing space utilization without significantly complicating the structure.
4Volume of moving object
If multi-layer laminated structure is adopted to improve space utilization, then space utilization improves, but structural stability deteriorates without additional support
Solution Approach 1:
The cooling plate is designed to simultaneously provide thermal management and structural support for multi-layer battery modules. By integrating these functions, the cooling plate maintains structural stability in the laminated configuration without requiring additional fixing frames, thus achieving both improved space utilization and maintained structural integrity.
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
Improves space utilization, enhances structural stability, and ensures easy installation by using a cooling plate to support energy storage units and incorporating supporting members to prevent deformation and damage.
Implementation Method 1
The first energy storage unit is in thermal contact with the first cooling plate to ensure the cooling efficiency of the first cooling plate to the first energy storage unit
Implementation Method 2
The second cooling plate is in thermal contact with the second energy storage unit
Data Source
AI summary
Provided are a battery pack and an electric vehicle. The battery pack includes a case, a cooling plate assembly and an energy storage unit. The cooling plate assembly and the energy storage unit are arranged inside the case, and the cooling plate assembly at least includes a first cooling plate. The first cooling plate is fixed on the case, and the first cooling plate divides the case, in a Z-direction, into a first accommodating space which is located above the first cooling plate, and a second accommodating space which is located below the first cooling plate. The energy storage unit at least includes a first energy storage unit which is arranged inside the first accommodating space and fixed on the first cooling plate, and a second energy storage unit which is arranged inside the second accommodating space.