Magnetic Component Ridge Core Deposition

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Solution Overview

Problem

Current magnetic components, such as inductors and transformers, have poor fill factors leading to lower quality factors and higher costs due to inefficient winding of wire conductors around cores, resulting in higher flux leakage.

Innovation Solution

The method involves creating magnetic components with ridges on the core, depositing conductive materials, and removing portions to form continuous conductors with insulating gaps, allowing for improved winding patterns and connections between substrates to enhance the quality factor and reduce flux leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If wire conductors are wound around a core to form magnetic components, then the components can be manufactured with traditional methods, but the fill factor is poor resulting in lower quality factor and higher costs

Engineering Contradiction:
ImprovemanufacturabilityVSAvoidquality factor
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces the mechanical winding process with a deposition process where conductive material is deposited directly onto the core in a desired pattern. This eliminates the limitations of manual or automated wire winding and allows for precise control of conductor placement, width, and insulation, thereby improving fill factor and quality factor while maintaining ease of manufacture through scalable deposition techniques.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of conductor formation from discrete wire winding to continuous material deposition. By controlling deposition parameters such as material thickness, deposition rate, and pattern definition, the process achieves superior fill factor and quality factor compared to traditional winding methods.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If wire conductors are wound around a core, then magnetic components can be formed, but flux leakage increases and quality factor decreases

Engineering Contradiction:
ImprovemanufacturabilityVSAvoidflux leakage
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The deposition-based conductor formation eliminates the gaps and irregularities inherent in wire winding, creating continuous, uniform conductive paths that minimize flux leakage. The precise control over conductor geometry and insulation ensures optimal magnetic coupling and reduced harmful electromagnetic effects.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If traditional winding methods are used to create magnetic components, then the manufacturing process is simple, but the fill factor is poor leading to higher costs

Engineering Contradiction:
Improveprocess complexityVSAvoidfill factor
Core Design Contradiction:
Device complexityVSQuantity of substance

Solution Approach 1:

The patent replaces the complex multi-step winding process with a single deposition step that directly creates the final conductor pattern. This increases fill factor by eliminating wasted space between windings and insulation layers, thereby reducing material costs and improving overall efficiency despite the introduction of deposition technology.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 approach results in magnetic components with higher quality factors and lower flux leakage, while also reducing fabrication costs by optimizing the winding process.

Implementation Method 1

depositing one or more electrically conductive materials on the core

Methodology Applied
Scientific EffectDeposition: Deposition (physical)

Data Source

PatentUS8567046B2Methods for making magnetic components
Publication Date: 2013.10.29 GENERAL ELECTRIC CO
  • US8567046B2 patent drawing
  • US8567046B2 patent drawing
  • US8567046B2 patent drawing

AI summary

A method for making a magnetic component is provided. The method comprises providing a core with one or more ridges protruding from one or more surfaces of the core, depositing one or more electrically conductive materials on the core, and removing at least a portion of the one or more ridges to form one or more continuous conductors wound around the core. Each of the one or more continuous conductors defines at least one insulating gap. Further, a magnetic component and methods for making the magnetic component are also presented.