Busbar-Through-Core Filter Layout for Compact Footprint
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Solution Overview
Problem
Existing filter devices, such as busbar units, face challenges with increased overall size due to the arrangement of busbars extending along the inner and outer surfaces of the magnetic core, leading to a larger footprint.
Innovation Solution
The filter device is designed with a magnetic core having a through-hole and busbars that extend through this hole, featuring electrical connections with dimensions smaller than the hole's diameter, allowing for compact design by positioning these connections in projected areas of the core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If busbars are arranged along the inner and outer surfaces of the magnetic core, then electrical connectivity is ensured, but the overall size of the filter device increases
Solution Approach 1:
The busbar configuration transitions from a two-dimensional arrangement along the magnetic core surfaces to a three-dimensional structure passing through the central through-hole. This dimensional change allows the busbars to traverse the magnetic core internally, reducing the external footprint while maintaining electrical connectivity between input and output terminals.
Solution Approach 2:
The busbars are nested within the magnetic core structure by passing through the central through-hole. This nesting approach allows the conductive elements to be contained within the magnetic assembly rather than extending along the external surfaces, thereby compacting the overall device dimensions while preserving functional connectivity.
2Reliability
If busbars extend along the magnetic core surfaces, then electrical connections are established, but the device complexity increases
Solution Approach 1:
The busbar system is segmented into distinct components: input busbars connecting to input terminals, output busbars connecting to output terminals, and a central through-hole structure. This segmentation simplifies the overall arrangement by clearly defining functional zones and reducing the complexity of interconnections compared to a continuous surface-mounted configuration.
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 configuration effectively limits the busbar size in the width direction, enabling the filter device to be made more compact without compromising electrical connectivity.
Implementation Method 1
a magnetic core and at least one busbar. The magnetic core may be shaped in a ring form and may have a through-hole which extends through the magnetic core in the arrangement direction
Data Source
AI summary
A filter device includes: a magnetic core that is shaped in a ring form and has a through-hole which extends through the magnetic core in an arrangement direction of the first electric component and the second electric component; and a busbar that extends through the through-hole. The busbar has a first electrical connection, a second electrical connection and a coupling portion. One of the first electrical connection and the second electrical connection extends through the through-hole, and an occupying width of the one of the first electrical connection and the second electrical connection measured in a width direction is smaller than a diametrical dimension of the through-hole measured in the width direction. Another occupying width of the one of the first electrical connection and the second electrical connection measured in a thickness direction is smaller than another diametrical dimension of the through-hole measured in the thickness direction.