Coil Component Variable Line Width for Magnetic Filling
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Solution Overview
Problem
In electronic devices, the narrow separation spaces between coil portions in coupled inductors make it difficult to fill magnetic materials or introduce plating liquids, leading to deteriorated characteristics such as decreased DC resistance and inefficient coupling inductance.
Innovation Solution
A coil component design featuring a support substrate with first and second coil portions and extension portions surrounding cores, where the line width of adjacent regions is greater than other regions, increasing the occupied area and improving DC resistance characteristics by allowing better filling of magnetic materials and plating liquids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If coil portions are arranged closely to reduce mounting area, then device size is reduced, but separation space becomes too narrow to fill magnetic material or introduce plating liquid
Solution Approach 1:
The coil portions are designed with non-uniform line widths where the width varies along the coil path. Specifically, certain sections have wider line widths that create localized expansion, increasing the separation space in those regions to allow proper filling of magnetic material and introduction of plating liquid, while other sections maintain narrower widths to minimize overall mounting area.
2Reliability
If line width is increased to improve DC resistance characteristics, then DC resistance is improved, but separation space is reduced making it difficult to fill magnetic material
Solution Approach 1:
The coil portions employ variable line widths along their paths, with wider sections strategically positioned to improve DC resistance characteristics by increasing the conductive path area, while narrower sections are positioned where sufficient separation space is needed for magnetic material filling. This spatial differentiation of line width characteristics allows simultaneous optimization of both electrical and manufacturing properties.
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 design effectively controls coupling inductance and enhances DC resistance characteristics by increasing the area occupied by coil portions, addressing the challenges of narrow separation spaces and improving overall component performance.
Implementation Method 1
a first coil portion and a second coil portion arranged on the support substrate and spaced apart from each other... a body having a first core and a second core
Data Source
AI summary
A coil component includes coil portions spaced apart from each other; and a body having a first core and a second core, spaced apart from the first core, wherein the coil portions include a first coiled portion and a second coiled portion that form at least one turn about the first and second cores, respectively, and a first extension portion and a second extension portion extending from the first and second coiled portions, respectively, and each surround the first and second cores. The body further comprises spacing portions, facing each other, defined between the coiled portions and spaced apart from the first and second cores. In the first and second extension portions, a line width of each of adjacent regions adjacent to the spacing portions is greater than a line width of a region except the adjacent regions.