Inductor Winding With Monotonic Interval Gradient
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Solution Overview
Problem
The existing inductor components with equally-spaced winding intervals suffer from sudden impedance variations at the ends, leading to signal reflection and noise due to structural changes, which are not addressed effectively.
Innovation Solution
The inductor component design features winding intervals that decrease monotonically from one end to the other, varying magnetic path lengths and impedance, thereby suppressing sudden impedance variations and reducing signal reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If winding intervals are equally-spaced, then manufacturing is simple, but impedance varies suddenly at ends causing signal reflection
Solution Approach 1:
The patent applies local quality by making the winding intervals non-uniform, specifically decreasing from one end to the other. This creates different local characteristics in different parts of the winding portion, with tighter winding at one end and looser winding at the other, thereby gradually changing impedance to reduce signal reflection while maintaining manufacturing feasibility
Solution Approach 2:
The patent changes the parameter of winding intervals from constant (equally-spaced) to variable (decreasing monotonically). This parameter change causes the impedance to increase gradually along the winding portion, preventing sudden impedance variations and reducing signal reflection at the ends
2Reliability
If winding intervals decrease monotonically, then impedance variation is suppressed, but manufacturing complexity increases
Solution Approach 1:
The patent implements local quality through non-uniform winding intervals that decrease monotonically from one end to the other. This creates progressively tighter winding at one end compared to the other, establishing a gradual impedance transition that suppresses signal reflection while maintaining a relatively simple overall winding structure
Solution Approach 2:
The patent applies asymmetry by making the winding intervals unequal and monotonically decreasing rather than symmetric or uniform. This asymmetric winding pattern creates a controlled impedance gradient along the winding portion, effectively reducing signal reflection without requiring complex multi-segment designs
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 design effectively reduces signal reflection and noise by gradually increasing impedance from one end to the other, maintaining consistent magnetic conditions between turns, thus improving signal propagation.
Implementation Method 1
magnetic conditions (e.g., magnetic coupling or the like) are identical between adjacent turns
Data Source
AI summary
An inductor component has electrode portions, a winding portion in which a conductor is wound by three or more turns, and lead portions located at both ends of the winding portion and connecting the winding portion and the electrode portions. Winding intervals of the respective turns in the winding portion decrease monotonically from one end to the other end of the winding portion.