Battery Pack Voltage Collection Layout Using Side-Mounted Terminals
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Solution Overview
Problem
Current battery technologies face challenges in efficient voltage collection due to the arrangement of flexible printed circuits (FPCs) between battery modules, which can lead to inconvenience and inefficiency in voltage collection across the entire battery module.
Innovation Solution
A battery assembly design where the voltage collection assembly is positioned on one side of the battery column, with electrodes connected to the case to facilitate direct potential collection, reducing the distance and complexity of voltage collection, and incorporating features like fuse structures and resistors to prevent corrosion and ensure safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FPC is arranged between upper surface of batteries and upper cover for voltage collection, then voltage can be collected across the entire battery module, but the voltage collection process becomes inconvenient and complex
Solution Approach 1:
The patent changes the spatial arrangement of voltage collection from a planar configuration (FPC between upper surface and upper cover) to a side-mounted configuration (voltage collection assembly on the side of battery column). This dimensional change simplifies the connection path and makes voltage collection more convenient while maintaining reliability across the entire battery module.
2Reliability
If FPC is arranged between batteries and upper cover, then voltage collection covers entire battery module, but the collection distance and structural complexity increase
Solution Approach 1:
The patent extracts the voltage collection function from the complex FPC structure positioned between batteries and upper cover, and relocates it to a dedicated voltage collection assembly mounted on the side of the battery column. This separation simplifies the overall structure while maintaining comprehensive voltage collection coverage across the battery module.
3Reliability
If first electrode is connected to case to equalize potential, then corrosion risk is reduced and safety improved, but additional connection structures are required
Solution Approach 1:
The patent merges the first electrode with the battery case through direct electrical connection, equalizing their potentials and preventing corrosion. This integration approach combines two components that work together electrically, reducing the need for separate protective structures while improving reliability.
Data Source
AI summary
A battery assembly, a battery pack, and a vehicle are provided. The battery assembly includes a battery column and a voltage collection assembly disposed on one side of the battery column. The battery column includes at least one first battery, including first and second electrodes. A distance between the first electrode and the voltage collection assembly is greater than a distance between the second electrode and the voltage collection assembly. The first electrode is electrically connected to a case of the first battery, such that a potential of the first electrode is equal to a potential of the case. The voltage collection assembly includes first and second collection terminals. The first collection terminal is connected to the case and configured to collect the potential of the first electrode. The second collection terminal is connected to the second electrode and configured to collect a potential of the second electrode.