Battery Temperature Sensing Board With Integrated Current Path
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Solution Overview
Problem
Current battery management systems face challenges in simultaneously and accurately measuring voltage and temperature of battery cells due to separate structures for voltage/current and temperature sensing, leading to assembly issues and reduced temperature measurement accuracy.
Innovation Solution
A temperature measurement apparatus with a single integrated circuit board featuring a plating layer for charging/discharging current flow and a conductive pattern for temperature sensing, allowing simultaneous measurement of voltage, current, and temperature, optimized by a fixing rib for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If separate wire structures are used for voltage/current and temperature sensing, then the measurement functions are independent, but the assembly complexity increases and temperature measurement accuracy decreases
Solution Approach 1:
The patent combines voltage/current sensing and temperature sensing functions into a single integrated circuit board. The temperature sensor is mounted on the same board as the voltage sensing circuitry, and both are electrically connected to the battery cell through integrated conductive paths. This merging eliminates the need for separate wire structures, reduces assembly complexity, and improves temperature measurement accuracy by ensuring proper thermal contact between the temperature sensor and the battery cell.
2Productivity
If separate structures are used for voltage/current and temperature sensing, then each function can be optimized independently, but the space utilization is reduced and assembly efficiency decreases
Solution Approach 1:
The integrated circuit board serves multiple functions simultaneously: it acts as a mounting substrate for the temperature sensor, provides voltage sensing circuitry, and contains conductive paths for both voltage measurement and temperature sensor electrical connection. This multi-functional design eliminates the need for separate wire structures and multiple connection points, thereby improving assembly efficiency and optimizing space utilization within the battery pack.
3Device complexity
If multiple separate components are used for sensing, then functional redundancy is reduced, but the number of assembly steps increases
Solution Approach 1:
The patent integrates the temperature sensor mounting, voltage sensing circuitry, and conductive connections into a single integrated circuit board assembly. This reduces the number of assembly steps by eliminating the need to separately install and connect multiple independent sensing components. The integrated design also improves connection reliability by reducing the number of separate connection points and potential failure interfaces between components.
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
This solution enhances assembly efficiency and accuracy by eliminating separate wire structures, optimizing space for multiple temperature sensors, and ensuring precise temperature measurement within the battery module.
Implementation Method 1
a plating layer formed as a metal material on a surface of the temperature measurement board and electrically connected to the battery cell to allow a charging/discharging current of the battery cell to flow therethrough
Implementation Method 2
a temperature measurement board including a temperature sensor and mounted on an integrated circuit board
Implementation Method 3
a temperature measurement pattern formed as a conductive pattern on another surface of the temperature measurement board and electrically connected to the temperature sensor provided on the temperature measurement board
Data Source
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AI summary
A temperature measurement apparatus for measuring a temperature of a battery cell includes a temperature measurement board including at least one temperature sensor, the temperature measurement board being on an integrated circuit board, a plating layer on a first surface of the temperature measurement board and electrically connected to the battery cell to allow a charging/discharging current of the battery cell to flow therethrough, the plating layer being a metal layer, and at least one temperature measurement pattern on a second surface of the temperature measurement board and electrically connected to the at least one temperature sensor, the second surface being opposite the first surface, and the at least one temperature measurement pattern being a conductive pattern.