Integrated Voltage Sensing Member for Battery Modules
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Solution Overview
Problem
The assembly of battery modules is complicated by the need for multiple members for mechanical coupling and electrical connection, and existing voltage sensing systems are prone to instability under external impacts and vibrations, increasing system size and complexity.
Innovation Solution
A voltage sensing member with supporting parts mounted at the bottom of the battery module, conductive sensing parts elastically connected to electrode terminals, and a connector for transmitting voltage to a battery management system, allowing for simple assembly and stable contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple members for mechanical coupling and electrical connection are used in battery module assembly, then the mechanical coupling and electrical connection are achieved, but the assembly process becomes very complicated
Solution Approach 1:
The patent combines mechanical coupling and electrical connection functions into a single integrated member. The support part includes both mechanical support structure and electrical connection terminals, eliminating the need for separate mechanical fasteners and electrical connectors. This integration directly resolves the technical contradiction by reducing assembly complexity while maintaining both mechanical coupling and electrical connection reliability.
Solution Approach 2:
The support part serves multiple functions simultaneously: it provides mechanical support for battery cells, enables mechanical coupling between cells, and facilitates electrical connection through integrated terminals. This multi-functionality allows a single component to replace multiple specialized members, thereby simplifying the assembly process while ensuring both mechanical and electrical connectivity.
2Reliability
If multiple members for mechanical coupling and electrical connection are used, then the battery cells are properly connected, but the total size of the system is increased
Solution Approach 1:
By merging mechanical coupling and electrical connection into a single integrated support member, the patent eliminates the space required for multiple separate components. The integrated design reduces the overall volume occupied by connection mechanisms while maintaining proper connection between battery cells, directly addressing the contradiction between connection reliability and system size.
3Measurement precision
If a plurality of wires are provided for attachment or connection of sensing unit, then the voltage sensing is enabled, but short circuits may occur
Solution Approach 1:
The patent extracts the voltage sensing function from a separate sensing unit with multiple wires and integrates it directly into the support structure. The support part includes built-in terminals that make direct contact with battery cell terminals, eliminating the need for external wiring. This integration removes the harmful factor of short circuits associated with multiple wires while maintaining accurate voltage sensing capability.
4Measurement precision
If sensing unit is attached or connected with multiple wires, then the voltage sensing is achieved, but the assembly process is complicated
Solution Approach 1:
The patent merges the voltage sensing function with the mechanical support structure. The support part includes integrated terminals that simultaneously provide mechanical support and electrical contact for voltage sensing. This combination eliminates the need for separate sensing units and multiple wires, thereby simplifying the assembly process while maintaining accurate voltage sensing capability.
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 solution simplifies the assembly process, maintains stable contact under external impacts, and enables a compact, efficient battery module structure with desired output and capacity, suitable for applications like electric vehicles.
Implementation Method 1
the other end of each is elastically connected to electrode terminals of the battery cells
Data Source
AI summary
Disclosed herein is a voltage sensing member for sensing the voltage of battery cells constituting a battery module, the voltage sensing member comprising: (a) a pair of supporting parts mounted to the bottom of the battery module at regions (the front and rear parts of the battery module) corresponding to electrode terminal connections of the battery cells; (b) connection parts for electrically connecting the supporting parts to a connector; (c) a plurality of conductive sensing parts protruding upward while one end of each is connected to the corresponding support part and the other end of each is elastically connected to electrode terminals of the battery cells; and (d) the connector mounted on the front part or the rear part of the battery module for transmitting the sensed voltage of the battery cells to a battery management system (BMS).