Inductor Component Layout to Prevent Magnetic Flux Blockage
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Solution Overview
Problem
The existing inductor components with an inverted quadrangular frustum shape face challenges in maximizing the inner diameter of the inductor wiring line due to magnetic flux being blocked by external electrodes, which affects the component's characteristics.
Innovation Solution
The inductor component design features a component body with a hexagonal prism shape, where the winding center axis of the inductor wiring line extends parallel to the mounting surface, allowing the magnetic flux to align with the surface and reducing interference from external electrodes, thus preventing magnetic flux blockage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inner diameter of the inductor wiring line is increased to enhance component characteristics, then the component performance is improved, but the magnetic flux is blocked by the external electrodes extending from the mounting surface to the inclined surface
Solution Approach 1:
The patent inverts the conventional arrangement by positioning the winding center axis parallel to the mounting surface rather than perpendicular to it. This inversion changes the direction of magnetic flux generation so that the flux extends in a direction parallel to the mounting surface and perpendicular to the first direction, thereby avoiding blockage by the external electrodes that extend in the first direction.
Solution Approach 2:
The patent transitions from a conventional vertical winding configuration (perpendicular to mounting surface) to a horizontal winding configuration (parallel to mounting surface). This dimensional change reorients the magnetic flux path from a vertical trajectory that intersects external electrodes to a horizontal trajectory that runs parallel to the mounting surface, eliminating the blockage issue.
2Volume of moving object
If the component body volume is increased to accommodate a larger inner diameter inductor wiring line, then the inner diameter can be increased, but the external electrodes still block the magnetic flux path
Solution Approach 1:
The patent inverts the conventional arrangement by positioning the winding center axis parallel to the mounting surface rather than perpendicular to it. This inversion changes the direction of magnetic flux generation so that the flux extends in a direction parallel to the mounting surface and perpendicular to the first direction, thereby avoiding blockage by the external electrodes that extend in the first direction.
Solution Approach 2:
The patent transitions from a conventional vertical winding configuration (perpendicular to mounting surface) to a horizontal winding configuration (parallel to mounting surface). This dimensional change reorients the magnetic flux path from a vertical trajectory that intersects external electrodes to a horizontal trajectory that runs parallel to the mounting surface, eliminating the blockage issue.
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 an increased inner diameter of the inductor wiring line without blocking the magnetic flux, enhancing the component's performance and enabling firm fixation to the substrate while minimizing the risk of flux obstruction.
Implementation Method 1
a direction of magnetic flux generated by current flowing through the inductor wiring line
Data Source
AI summary
An inductor component includes a component body having a mounting surface and a top surface and provided therein with a spiral inductor wiring line advancing in the extending direction of a winding center axis. The inductor wiring line is connected to a first external electrode at a first end, and connected to a second external electrode at a second end. The component body includes: a first inclined surface connected to a first end of the mounting surface on a first side in a length direction and inclined toward the top surface as separating from the first end; and a second inclined surface connected to a second end of the mounting surface on a second side in the length direction and inclined toward the top surface as separating from the second end. The winding center axis extends in a direction parallel to the mounting surface and perpendicular to the length direction.