Inductor Insulation Layout for Inductance and Conductor Protection
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Solution Overview
Problem
Existing coil components face challenges in improving inductance acquisition efficiency while minimizing insulation degradation for wiring conductors.
Innovation Solution
The inductor component design includes a base insulation layer, wall portions, and a cover insulation layer with specific thickness and structural configurations to enhance inductance acquisition efficiency and reduce insulation degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thickness of the protruding portion of the cover insulation layer is increased to improve insulation for the wiring conductor, then the insulation performance is improved, but the inductance acquisition efficiency is degraded
Solution Approach 1:
The cover insulation layer is designed with non-uniform thickness: the cover portion directly above the wiring conductor has greater thickness to provide enhanced insulation, while the protruding portion has reduced thickness to minimize interference with the magnetic field. This local differentiation allows the structure to simultaneously achieve both insulation performance and inductance acquisition efficiency by optimizing each region's thickness according to its specific functional requirements.
2Productivity
If the thickness of the cover portion is reduced to improve inductance acquisition efficiency, then the inductance acquisition efficiency is improved, but the insulation performance degrades
Solution Approach 1:
The solution addresses this contradiction by creating a differentiated thickness distribution in the cover insulation layer. The cover portion maintains sufficient thickness to ensure adequate insulation performance, while the protruding portion is intentionally thinned to reduce magnetic field interference and improve inductance acquisition efficiency. This localized quality adjustment allows each region to optimize its function without compromising the other.
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 design improves inductance acquisition efficiency while reducing insulation degradation for wiring conductors, enhancing the overall performance of the inductor component.
Implementation Method 1
The coil component includes first, second, and third magnetic members, a plurality of conductor layers located between the first magnetic member and the second magnetic member
Data Source
AI summary
An inductor component includes a base insulation layer having a base upper surface; a first wall portion on the base upper surface and extending around a turning axis in an up-down direction; a second wall portion on the base upper surface and extending parallel to the first wall portion around the turning axis; a wiring conductor on the base upper surface between the first and second wall portions and having a conductor upper surface opposite in the up-down direction to a surface of the wiring conductor in contact with the base insulation layer; a cover insulation layer laminated on the conductor upper surface; and a magnetic body. The cover insulation layer includes a cover portion overlapping the wiring conductor in plan view and a protruding portion on an opposite side of the first wall portion from the cover portion in a radial direction of the turning axis.