Battery Pack Layout With Cooling Plates and Reinforcement Beams
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Solution Overview
Problem
Battery packs in electric vehicles are prone to thermal runaway and explosion when subjected to thermal, electrical, or mechanical abuse, leading to chain reactions that result in the scrapping of the battery pack.
Innovation Solution
A battery pack design incorporating a battery module with alternately arranged reinforcement beams and liquid cooling plates, along with a colloidal unit for isolation and heat insulation, to enhance mechanical strength and prevent thermal runaway.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If battery cells are arranged closely to increase energy density, then productivity and space utilization are improved, but the risk of thermal runaway propagation increases
Solution Approach 1:
The battery pack is divided into multiple independent battery modules, each module containing specific battery cells. These modules are separated by isolation structures including insulation plates and support frames with isolation grooves. This segmentation prevents thermal runaway from propagating between modules while maintaining high energy density through optimized cell arrangement within each module.
Solution Approach 2:
Insulation plates and support frames with isolation grooves are introduced as intermediary structures between adjacent battery cells and modules. These intermediaries provide thermal and mechanical isolation, preventing direct contact and heat transfer between battery cells, thus blocking the propagation path of thermal runaway while allowing close arrangement of cells within modules.
2Strength
If reinforcement structures are added to improve mechanical strength, then structural integrity is improved, but device complexity increases
Solution Approach 1:
The support frame is designed to perform multiple functions simultaneously: it provides mechanical reinforcement to the battery pack structure, creates isolation grooves for thermal and mechanical separation of battery modules, and serves as a mounting structure for insulation plates. This multi-functionality reduces the need for separate reinforcement components, thereby reducing overall structural complexity while maintaining high mechanical strength.
Solution Approach 2:
The reinforcement structure is merged with the isolation structure. The support frame combines structural reinforcement elements with isolation groove features, integrating two previously separate functions into a single component. This merging reduces the number of parts and assembly steps while achieving both mechanical strength and thermal isolation objectives.
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 effectively reinforces the battery pack's strength, isolates individual cell groups, and prevents chain thermal runaway, improving safety and reducing the risk of battery pack failure.
Implementation Method 1
The liquid cooling module includes a plurality of liquid cooling plates
Implementation Method 2
liquid cooling plates
Implementation Method 3
The reinforcement module includes a plurality of reinforcement beams
Implementation Method 4
a colloidal unit for isolation and heat insulation
Data Source
AI summary
The present disclosure provides a battery pack and an electric equipment. The battery pack includes a battery module, a reinforcement module, and a liquid cooling module. The battery module includes a plurality of cell groups. The reinforcement module includes a plurality of reinforcement beams. The liquid cooling module includes a plurality of liquid cooling plates. The plurality of liquid cooling plates and the plurality of reinforcement beams are alternately arranged along a first direction. One cell group is provided between each of the liquid cooling plates and any adjacent one of the reinforcement beams.