Conical Inductor Bridge for Flexible Electronic Devices
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Solution Overview
Problem
In electronic devices with inductor bridges, bending causes deformation of the helical coil and changes in interlayer capacitance, leading to variations in electric characteristics, which existing technologies fail to adequately address.
Innovation Solution
An inductor bridge design featuring a conical coil with loop-shaped conductors of varying diameters and gaps, where the large-diameter loop-shaped conductor is positioned to minimize overlap and maximize extension along the insulating base material when bent, reducing interlayer capacitance and maintaining consistent electric characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the inductor bridge is bent to fit in limited space, then the flexibility and adaptability of the device is improved, but the shape of the helical coil is deformed and the interline capacitance changes, leading to variation in electric characteristics
Solution Approach 1:
The patent applies curvature by transitioning from a helical coil to a conical coil structure. The conical coil's tapered geometry allows it to better accommodate bending deformations while maintaining electrical performance. The curved surface of the conical coil distributes stress more evenly during bending, reducing deformation of the conductor shape and maintaining stable interline capacitance characteristics.
Solution Approach 2:
The patent implements local quality by positioning the large-diameter loop-shaped conductor at a specific location on the conical coil structure. This large-diameter conductor is strategically placed to minimize overlap with other conductors when the inductor bridge is bent. The varying diameter along the conical structure creates different local properties that optimize both flexibility and electrical characteristic stability.
2Reliability
If the loop shaped conductors are arranged with varying diameters in the conical coil, then the interlayer capacitance changes are reduced when bent, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into the conical coil structure. The varying diameter loops serve both as inductive elements and as spacing mechanisms that prevent conductor overlap during bending. The conical shape itself provides both mechanical flexibility and electrical performance stabilization, combining structural and functional requirements into a single integrated design.
Solution Approach 2:
The patent uses composite construction by combining multiple loop-shaped conductors with different diameters within the conical coil structure. This composite arrangement of conductors with varying geometries creates a system that leverages the properties of each individual loop to achieve overall stability in interlayer capacitance while maintaining the benefits of the conical configuration.
Data Source
AI summary
An electronic device includes an inductor bridge that connects first and second circuits. The inductor bridge includes an insulating base material and a conical coil in the insulating base material. The conical coil includes loop shaped conductors arranged in a winding axis direction. Inner and outer diameters of the loop shaped conductors change is one way in the winding axis direction. A large-diameter loop shaped conductor, which is one of the loop shaped conductors that has the largest inner and outer diameters, is disposed such that the inner and outer diameters thereof relatively extend along the insulating base material compared with the other loop shaped conductors when the inductor bridge is bent.