Integrated Inductor Mount Portions Reduce Resistance
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Solution Overview
Problem
Conventional inductor elements with multiple conductors face challenges in downsizing and reducing resistance values due to complex land patterns for connecting conductors.
Innovation Solution
The design includes a first and second conductive portion with round-about and mount portions arranged in a specific manner within a magnetic core, allowing for a simple land pattern and reduced distance between mount portions, which reduces resistance and enables downsizing while maintaining high magnetic saturation characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional land patterns are used to connect multiple conductors, then the inductor element can be manufactured with multiple conductors, but the land pattern becomes complicated and resistance value increases
Solution Approach 1:
The patent merges multiple conductors (first and second conductors) into a single integrated conductor structure with multiple conductive portions. This eliminates the need for separate land patterns to connect multiple independent conductors, thereby simplifying the land pattern while maintaining the multi-conductor configuration for achieving low resistance values and high magnetic saturation characteristics.
2Quantity of substance
If conventional land patterns are used to connect multiple conductors, then the inductor element can be manufactured with multiple conductors, but downsizing becomes difficult
Solution Approach 1:
The patent employs a nested arrangement where multiple conductive portions are positioned in close proximity and overlap in planar view, with some portions arranged in different spatial layers or positions within the magnetic core. This nesting approach allows multiple conductors to occupy a compact volume, enabling downsizing of the inductor element while maintaining the multi-conductor configuration.
3Volume of moving object
If distance between mount portions is reduced for downsizing, then the inductor element becomes more compact, but resistance value increases due to current flow in land pattern
Solution Approach 1:
The patent merges the functions of multiple conductors into a single integrated conductor structure where conductive portions are directly connected through the conductor material itself rather than through external land patterns. This direct connection eliminates the resistive losses that would occur in land patterns, allowing compact arrangement of mount portions without increasing resistance.
Solution Approach 2:
The conductor structure acts as an intermediary that provides low-resistance direct pathways between mount portions. Instead of relying on land patterns on the mounting board, the conductor itself serves as the connection medium, enabling short distances between mount portions while maintaining low resistance values through the highly conductive material.
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 allows for efficient mounting with a simple land pattern, reduces resistance values, and achieves high magnetic saturation characteristics, making the inductor element suitable for compact designs with stable mounting performance.
Implementation Method 1
proposed is an inductor element where a conductor having less than 1 T is covered with a magnetic material. As one of these inductor elements, also proposed is an inductor element containing a plurality of mutually independent conductors
Data Source
AI summary
An inductor element includes a first conductive portion, a second conductive portion, and a magnetic core. The first conductive portion includes a first round-about portion, a first mount portion, and a second mount portion. The second conductive portion includes a second round-about portion, a third mount portion, and a fourth mount portion. The magnetic core houses at least a part of the first and second conductive portions so that each mount surface of the first to fourth mount portions is exposed from one side of the magnetic core. The first and second conductive portions are arranged so that the first and second directions are substantially parallel and opposite to each other. The first and third mount portions are at least partially overlapped with each other in a third direction perpendicular to the first and second directions.