Battery Module Wiring Layout With Ground Shielding for Voltage Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Accurate detection of battery cell states, such as voltage, is hindered by unwanted radiation from the cells.
Innovation Solution
A battery module design featuring a wiring member with an insulating base material, a wiring layer for detection lines, and a ground layer on the opposite side to shield electromagnetic interference, ensuring accurate voltage detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a wiring member is disposed close to battery cells for voltage detection, then detection capability is improved, but accurate detection is hindered by unwanted radiation from the cells
Solution Approach 1:
A ground layer is introduced as an intermediary between the detection lines and the battery cells. This ground layer acts as a mediator that blocks electromagnetic radiation from the cells from reaching the detection lines, thereby protecting the voltage detection accuracy while maintaining close proximity for effective monitoring
Solution Approach 2:
The unwanted electromagnetic radiation from battery cells is converted into a beneficial shielding effect by using the same radiation source to create a ground potential reference. The ground layer utilizes the electromagnetic environment to establish a stable reference potential that actually protects the detection lines from interference
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 design effectively suppresses electromagnetic interference, maintaining accurate detection of battery cell states by stabilizing the potential of detection lines.
Implementation Method 1
a ground layer disposed in a position corresponding to at least the wiring layer, on another surface side of the insulating layer and having a ground potential
Data Source
AI summary
Provided is a battery module capable of suppressing failures in accurate detection of the state of battery cells due to the effects of unwanted radiation from the battery cells. A battery module 30 includes a plurality of battery cells 20 that are stacked and disposed and a wiring member 50 to detect the state of the plurality of battery cells 20. In the wiring member 50, an insulating base material 52, a wiring layer 53 disposed on one surface 52a side of the base material 52 and including a plurality of detection lines 53a to detect the state of the plurality of battery cells 20, and a ground layer 55 disposed in a position corresponding to at least the wiring layer 53, on the other surface 52b side of the base material 52 are stacked.