Circuit Substrate Module for Battery Management Simplification
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Solution Overview
Problem
The manufacturing process of battery modules is complex due to the need for multiple thermistor lines and balancing lines to be connected to a controller for each battery unit, and the coupling structure of connection members like bus bars is not simplified.
Innovation Solution
A circuit substrate module is introduced, where communication connectors from battery units are easily connected to a battery management system (BMS), and a simplified coupling structure using bus bars electrically connects adjacent battery units, with the bus bars being coupled to electrode terminals through the circuit substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple thermistor lines and balancing lines are connected to a controller for each battery unit, then the battery management function is improved, but the manufacturing process complexity increases
Solution Approach 1:
The patent divides the battery module into multiple independent battery units, each with its own communication connector. This segmentation allows each unit to be managed independently while simplifying the overall manufacturing process, as each unit can be assembled and tested separately before final integration.
Solution Approach 2:
The patent introduces communication connectors as intermediary components that facilitate electrical connection between battery units and the controller. These connectors serve as standardized interfaces, simplifying the manufacturing process by providing a uniform connection method rather than requiring custom wiring for each battery unit.
2Reliability
If a conventional connection structure using bus bars is used to electrically connect adjacent battery units, then the electrical connection is established, but the coupling structure is not simplified
Solution Approach 1:
The patent merges the bus bar connection function with the communication connector by integrating the communication connector onto the bus bar structure. This combination eliminates the need for separate connection components, simplifying the coupling structure while maintaining reliable electrical connection between adjacent battery units.
Solution Approach 2:
The bus bar is designed to serve multiple functions: it provides electrical connection between battery units and simultaneously supports the communication connector. This multi-functionality reduces the number of components needed and simplifies the overall coupling structure while ensuring reliable electrical connectivity.
Data Source
AI summary
A circuit substrate module and a battery module using the circuit substrate module are disclosed. The battery module includes: a plurality of battery units, wherein each battery unit comprises a plurality of battery cells, a case for accommodating the plurality of battery cells, a plurality of electrode terminals, and a plurality of communication connectors coupled to the battery cells and protruding out of the case; a circuit substrate module mounted on the plurality of battery units and comprising a circuit substrate, wherein a plurality of circuit substrate connectors are coupled to the plurality of communication connectors, wherein the plurality of circuit substrate connectors are coupled to a single external connector that is configured to be coupled to an external device.