Inductor Terminal Layout for Accurate Orientation Identification
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Solution Overview
Problem
Existing inductor components with identical external terminals make it difficult to accurately identify the orientation based on appearance.
Innovation Solution
The inductor component features a two-fold symmetrical shape with different shaped terminal portions, including a specific dummy portion, allowing for accurate orientation identification by distinguishing between terminal shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If all external terminals are made with the same shape and disposed at corners, then manufacturing is simplified and symmetry is maintained, but orientation identification becomes difficult
Solution Approach 1:
The patent applies asymmetry by making at least one terminal portion have a different shape from the others. Specifically, one terminal portion has a first shape while another terminal portion has a second shape that is different from the first shape. This asymmetric design allows orientation identification while maintaining relatively simple manufacturing processes.
2Loss of information
If terminal portions are made with different shapes, then orientation identification is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by making only specific terminal portions different in shape rather than changing all terminal portions. At least one terminal portion has a first shape and another has a second shape, while other terminal portions can maintain the same shape. This localized differentiation achieves orientation identification with minimal increase in manufacturing complexity.
Data Source
AI summary
The main face of an element body of an inductor component has a two-fold symmetrical shape with respect to the geometric center of the main face. First and second inductor wires extend inside the element body. Four terminal portions, each having a terminal portion exposed from the main face, are in the element body, two of the which are first external terminals, one a second external terminal, and one a dummy portion which is a specific dummy portion. The main face is divided into four congruent imaginary regions with one terminal portion in each. The terminal portion in the first imaginary region, that is an imaginary region at a two-fold symmetrical position around the geometric center with respect to the fourth imaginary region having the specific dummy portion, is a specific terminal portion. The shapes of the specific dummy and terminal portions are different from each other.