Filter Component Busbar Geometry for Interference Suppression
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Solution Overview
Problem
In the automotive sector, particularly in hybrid and electric vehicles, there is a need for a compact and easy-to-install filter component that can effectively suppress interference voltages on high-voltage bus lines, which are subject to significant electromagnetic interference, while allowing for open architecture access by multiple components.
Innovation Solution
A filter component comprising a housing body with two busbars, each having distinct end and middle sections, surrounded by magnetic cores, and connected via capacitors to suppress interference, with an L-shaped geometry allowing for efficient mounting and minimal material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional filter components are used to suppress interference voltages on high-voltage bus lines, then electromagnetic interference is reduced, but the footprint and installation complexity increase
Solution Approach 1:
The patent places the magnetic core inside the housing body, and positions the busbars such that they pass through the magnetic core. The capacitors are arranged within the housing body alongside the busbars, creating a nested configuration where components are embedded within each other's spatial envelopes, maximizing space utilization and minimizing the overall footprint of the filter component.
Solution Approach 2:
The busbars are configured to extend in different spatial dimensions - the first busbar extends primarily in one direction while the second busbar extends in a different direction, allowing connections to be made from a single mounting direction. This dimensional arrangement enables compact packaging while maintaining all necessary electrical connections without increasing the footprint.
2Object-affected harmful factors
If traditional filter components are used to suppress interference voltages, then electromagnetic interference is reduced, but installation ease and accessibility deteriorate
Solution Approach 1:
The busbars are designed with asymmetric configurations where the first busbar has a different spatial arrangement than the second busbar. The first busbar extends in a different direction than the second busbar, creating an asymmetric layout that optimizes connection accessibility from a single mounting direction while maintaining effective interference suppression through the magnetic core positioning.
3Object-affected harmful factors
If conventional filter designs are used, then filtering performance is achieved, but material usage and manufacturing complexity increase
Solution Approach 1:
The housing body serves multiple functions simultaneously: it provides structural support for the filter component, contains and positions the magnetic core, houses the capacitors, and guides the busbars through the assembly. This multi-functional design eliminates the need for separate structural components, reducing overall material usage while maintaining effective interference suppression.
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 suppresses interference voltages, simplifies installation, and reduces material usage, making it suitable for high-voltage bus lines in electric vehicles with open architecture access.
Implementation Method 1
at least one magnetic core (300) arranged in the housing body and surrounding the respective middle section (213, 223) of the at least two busbars (210, 220)
Implementation Method 2
The at least two busbars (210, 220) are connected to the reference potential via at least one first and one second capacitor (401, 402). At least one third capacitor (403) connects the at least two busbars (210, 220) to each other.
Data Source
Figure 1~2
Figure 3~4B
Figure 5~6
AI summary
A filter component comprises a housing body (100), a first and at least a second busbar (210, 220) which each have a first end section (211, 221) and a second end section (212, 222) between which a central section (213, 223) is arranged in each case. The end sections of the at least two busbars (210, 220) each have connections (214, 215, 224, 225) for connecting electrical conductors to the filter component. The first and the second end section (211, 212) and the central section of the first busbar are arranged in a first plane (E1), and the first and the second end section (221, 222) and the central section (223) of the at least one second busbar (220) are arranged in a second plane (E2) which is different from the first plane. As a result, the filter component can be connected to the electrical conductors from a mounting direction.