Smartcell Clusterboard Layout for Battery EMF Cancellation
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Solution Overview
Problem
The generation of electromagnetic fields (EMFs) and resulting electromagnetic interference (EMI) when utilizing battery modules in alternating current (AC) environments affects the operation of electronic devices and poses health risks, necessitating a solution to minimize these effects.
Innovation Solution
A battery module configuration with paired clusterboards located between clusters of battery cells, utilizing electrical connectors to create opposing current paths that cancel out EMFs within the module, thereby reducing EMI.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If battery modules are utilized in AC operation, then power delivery capability is improved, but electromagnetic field generation increases causing EMI and health risks
Solution Approach 1:
The battery module is segmented into multiple clusters (first cluster, second cluster, etc.) with each cluster having its own clusterboard. This segmentation allows for independent arrangement of current paths in adjacent clusters, enabling EMF cancellation through opposing current directions while maintaining overall power delivery capability.
Solution Approach 2:
The patent applies reverse current path arrangement where adjacent clusters are configured with opposite current flow directions. By inverting the current path configuration in alternating clusters, the EMFs generated by adjacent clusters cancel each other out, reducing overall electromagnetic field generation while maintaining AC power delivery.
2Object-generated harmful factors
If clusterboards are placed between battery cell clusters to reduce EMI, then electromagnetic interference is minimized, but device complexity increases
Solution Approach 1:
The clusterboards serve multiple functions: they electrically connect battery cells within a cluster, provide physical separation between adjacent clusters, and enable the EMF cancellation configuration by facilitating opposite current paths. This multi-functionality reduces the need for additional dedicated EMI shielding components, thereby limiting complexity increase.
3Object-generated harmful factors
If battery cells are arranged in multiple clusters with opposing current paths, then EMF cancellation is achieved, but manufacturing complexity increases
Solution Approach 1:
The battery module is divided into repeating units of clusters with standardized clusterboard configurations. This segmentation into modular units simplifies manufacturing by allowing repetitive assembly patterns, where each cluster-board-cluster combination can be pre-assembled and tested before integration into the final module.
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 effectively minimizes EMF and EMI within battery modules, ensuring safe operation of electronic devices and reducing health risks, while enabling efficient AC power supply to vehicles.
Implementation Method 1
the pair of clusterboards physically separate the first cluster of battery cells from the second cluster of battery cells to reduce electromagnetic interference (EMI) between the first cluster of battery cells and the second cluster of battery cells
Data Source
Figure 1A~1B
Figure 1C~2
Figure 3
AI summary
Various technologies and embodiments are presented to minimize/mitigate electromagnetic field (EMF) effects and electromagnetic interference (EMI) effects generated in a battery module/battery pack when the battery module/battery pack is utilized with alternating current (AC) operation. Respective electrical flowpaths are created throughout a battery module such that EMF/EMI generated in a first portion of a flowpath negates EMF/EMI generated in an adjacent second portion of a flowpath. The battery module operates as a smartcell, wherein battery module comprises a pair of clusterboards located between a first cluster of battery cells and a second cluster of battery cells, wherein the central positioning of the pair of clusterboards functions to isolate the first cluster of battery cells from the second cluster of battery cells.