Inductor Covering Layer Layout to Reduce Edge Peeling
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Solution Overview
Problem
In electronic components with a covering layer and a main body of different materials, the corner of the covering layer is prone to collision and peeling due to its lower contact strength, leading to potential detachment during object collisions.
Innovation Solution
The inductor component design features a covering layer with optical properties different from the main body, positioned on a flat surface parallel to the main body, overlapping the inductor wiring path and having a smaller outer edge range than the main body, reducing the likelihood of direct contact and peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the covering layer is positioned at the corner of the element body to cover the entire outer surface, then the coverage area is maximized, but the covering layer is prone to collision and peeling due to its outer edge being exposed
Solution Approach 1:
The patent transitions from a 2D planar covering layer arrangement to a 3D stepped configuration. The covering layer is divided into multiple levels (first covering layer at a higher level, second covering layer at a lower level), creating a dimensional hierarchy that redistributes mechanical stress and prevents concentration at corner edges, thereby resolving the contradiction between coverage area and peeling resistance
2Illumination intensity
If the covering layer and main body are made of different materials to achieve optical differentiation, then optical properties are improved, but the close contact force between covering layer and main body is reduced
Solution Approach 1:
The covering layer is segmented into multiple independent layers (first covering layer and second covering layer) positioned at different levels. This segmentation allows each layer to be optimized for its specific function: the first layer provides optical differentiation while the second layer enhances mechanical adhesion to the main body, resolving the contradiction between optical properties and bonding strength
3Area of stationary object
If the outer edge of the covering layer coincides with the outer edge of the main body, then the coverage is complete, but the probability of direct collision is increased
Solution Approach 1:
The patent introduces asymmetry in the vertical positioning of covering layers relative to the main body edges. The first covering layer extends beyond the main body edge in one direction, while the second covering layer is positioned at a lower level with different extension characteristics. This asymmetric stepped configuration ensures that outer edges do not coincide, reducing collision probability while maintaining complete coverage through multi-level presence
Data Source
AI summary
An inductor component includes an element body and an inductor wiring in the element body. When viewed in a direction perpendicular to a first main surface, the inductor wiring has a circling path wound one or more turns. The element body includes a main body having an insulating property and a first covering layer having optical properties different from those of the main body. The first covering layer is parallel to the first main surface, and is on the first main surface side with respect to an end of the circling path on the first main surface side. When viewed in a direction perpendicular to the first main surface, the first covering layer overlaps the entire circling path, and a range surrounded by an outer edge of the first covering layer is smaller than a range surrounded by an outer edge of the main body.