Battery Connection Module for Combined Cell Temperature and Voltage Sensing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing battery connection modules cannot simultaneously collect temperature and voltage information from battery cells, limiting their functionality.

Innovation Solution

A battery connection module comprising a flexible circuit board with temperature and voltage collecting wiring, a temperature sensor, and a voltage collecting pad, which connects busbars to a rigid circuit board, enabling simultaneous collection of temperature and voltage data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flexible printed circuit board is used to collect temperature information, then temperature monitoring is achieved, but voltage information cannot be collected simultaneously

Engineering Contradiction:
Improvemonitoring functionVSAvoidvoltage information
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent combines temperature collecting wiring and voltage collecting wiring on the same flexible circuit board, merging previously separate monitoring functions into a single integrated structure. This allows both temperature and voltage information to be collected simultaneously through the same flexible circuit board connecting the battery terminal to the monitoring circuit.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If separate components are used for temperature and voltage collection, then each function is performed, but device complexity increases

Engineering Contradiction:
Improvemonitoring capabilityVSAvoidconnection structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The flexible circuit board integrates both temperature collecting wiring and voltage collecting wiring into a single component, eliminating the need for separate connection structures. This merging approach maintains full monitoring capability while reducing overall device complexity by consolidating multiple functions into one integrated board.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flexible circuit board is designed to perform multiple functions simultaneously: it serves as both a temperature sensing conduit and a voltage measurement pathway. By making the circuit board universal for both monitoring tasks, the patent avoids the complexity of separate dedicated components while maintaining both monitoring capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 module effectively collects both temperature and voltage information from batteries, enhancing monitoring and management capabilities of battery systems.

Implementation Method 1

a temperature sensor and a voltage collecting pad are respectively provided to the first end portion

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the voltage collecting pad is connected to the corresponding busbar

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP4239776B1Battery connection module
Publication Date: 2025.04.30 MOLEX INC
  • EP4239776B1 patent drawingFigure 1
  • EP4239776B1 patent drawingFigure 2~3
  • EP4239776B1 patent drawingFigure 4

AI summary

A battery connection module is provided, the battery connection module includes a plurality of busbars, a rigid circuit board and at least one connecting assembly; the plurality of busbars are used to connect the plurality of batteries; the rigid circuit board is connected to the plurality of busbars; the connecting assembly is used to connect the corresponding busbar and the rigid circuit board, the connecting assembly includes a flexible circuit board, a temperature sensor and a voltage collecting pad; the flexible circuit board has a first end portion, a second end portion and a middle portion, the first end portion connects the corresponding busbar, the second end portion connects the rigid circuit board, the middle portion connects the first end portion and the second end portion, the flexible circuit board is provided with a temperature collecting wiring and a voltage collecting wiring; the temperature sensor and a voltage collecting pad are respectively provided to the first end portion, the voltage collecting pad is connected to the corresponding busbar, the temperature sensor and the voltage collecting pad are connected to the rigid circuit board at the second end portion respectively via the temperature collecting wiring and the voltage collecting wiring.