Battery Pack Pipe Assembly for Uniform Module Cooling
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Solution Overview
Problem
Conventional modular cooled battery packs face issues with messy and exposed cable/busbar/pipe arrangements due to numerous connectors, uneven heat dissipation from series-connected fluid pipes, and complex parallel pipeline arrangements, which affect space efficiency and heat management.
Innovation Solution
A battery pack design with a pipe assembly that includes input, series-connected first pipe sets, parallel-connected communication pipes, and output pipes, along with a busbar assembly for series connections, optimizing the arrangement to minimize space usage and ensure consistent fluid flow rates for even heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fluid pipes are coupled in series connection to battery modules, then device complexity is reduced, but heat dissipation uniformity deteriorates due to excessive flow resistance or inconsistent flow rates
Solution Approach 1:
The battery pack is divided into multiple battery modules, each with its own independent fluid pipe. This segmentation allows each module to have dedicated cooling flow paths, ensuring uniform heat dissipation across all modules while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
The patent changes the flow distribution parameters by using a fluid distribution manifold that evenly distributes coolant to multiple parallel pipes. This parameter optimization ensures consistent flow rates to each battery module, achieving uniform heat dissipation without requiring complex pipe arrangements.
2Temperature
If fluid pipes are coupled in parallel connection to battery modules, then heat dissipation uniformity is improved, but device complexity increases due to complex, time-consuming and strenuous parallel pipeline arrangement
Solution Approach 1:
A fluid distribution manifold is introduced as an intermediary component that simplifies the parallel pipe arrangement. The manifold centrally distributes coolant to multiple battery modules, achieving uniform heat dissipation while reducing installation complexity compared to direct parallel connections.
Solution Approach 2:
The fluid distribution manifold serves multiple functions: it distributes coolant uniformly to all battery modules, provides structural support for pipe routing, and simplifies the overall system architecture. This multi-functionality reduces the need for complex dedicated piping for each module.
3Adaptability or versatility
If modular cooled battery pack design is adopted, then adaptability to various vehicle platforms is improved, but device complexity increases due to more connectors between battery modules
Solution Approach 1:
Multiple battery modules are merged into an integrated assembly with shared fluid distribution infrastructure. The common manifold and coordinated pipe arrangement reduce the number of external connectors needed between modules, simplifying the overall system while maintaining modular adaptability to different vehicle platforms.
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 simplifies and organizes cable/busbar/pipe arrangements, ensuring uniform heat dissipation and temperature consistency across battery modules, while reducing space requirements and improving thermal management efficiency.
Implementation Method 1
The first pipe set is coupled to the input pipe and coupled in series to the plurality of first battery modules within the first frame
Implementation Method 2
The pump is coupled to the fluid inlet and the fluid outlet. The thermal management module is coupled to the pump for thermal management of the battery pack in an immersion cooling manner by controlling the pump to pump a fluid into the battery pack
Data Source
AI summary
A battery pack includes a casing, a pipe assembly, and first, second and third battery modules disposed within the casing. The pipe assembly includes an input pipe, an output pipe set, a communication pipe set, and first, second, and third pipe sets. The first pipe set is disposed at a first side portion of the casing to be coupled to the input pipe and coupled to the first battery modules. The second and third pipe sets are disposed at a second side portion of the casing to be coupled to the second and third battery modules, respectively. The output pipe set is coupled to the second battery module and the third battery module. The communication pipe set is disposed at a back portion of the casing, coupled to the first battery module, and coupled in parallel to the second battery module and the third battery module.