Press-Fit Parallel Wire Layout for Compact Magnetic Devices
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Solution Overview
Problem
Conventional electronic components, such as transformers and inductors, face challenges in miniaturization due to insufficient efficacy in modern, compact consumer electronic devices, necessitating innovative solutions to enhance performance and size reduction.
Innovation Solution
A press-fit wire configuration is introduced in magnetic devices, comprising multiple parallel wires with varying line arrangements and diameters, which are affixed and arranged to surround a central pillar formed by magnetic cores, allowing for efficient current density adjustment and miniaturization by reducing skin depth and AC loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional single-wire configurations are used in magnetic devices, then the structure is simple, but the device cannot be sufficiently miniaturized and efficacy is insufficient
Solution Approach 1:
The patent divides the wire into multiple parallel wires (first wire and second wire) with different line arrangements and diameters. This segmentation allows each wire to carry different current densities, enabling the magnetic device to be miniaturized while maintaining sufficient efficacy through optimized current distribution across multiple segments.
2Loss of energy
If multi-strand wires with varying diameters are used, then current density is improved and AC loss is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by creating wires with different line diameters and arrangements in specific regions. The first wire and second wire have different multi-strand configurations optimized for their respective positions, allowing local optimization of current density and AC loss reduction while maintaining overall manufacturability through systematic design.
3Productivity
If parallel wire arrangements with different diameters are implemented, then skin depth is reduced and current density is optimized, but device complexity increases
Solution Approach 1:
The patent resolves the complexity issue by organizing multiple wires with different diameters in a structured parallel arrangement along a first direction. This dimensional organization creates a systematic configuration that optimizes current density and skin depth effects while maintaining manageable device complexity through spatial structuring.
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
The press-fit wire configuration effectively miniaturizes magnetic devices, improves current density, and reduces AC loss, addressing the limitations of conventional components by enabling efficient voltage transformation and electromagnetic induction.
Implementation Method 1
The first wire and/or the second wire is a multi-strand wire... reduces skin depth and AC loss
Implementation Method 2
enabling efficient voltage transformation and electromagnetic induction
Implementation Method 3
A transformer is primarily used to transform the drive voltage used by circuits
Data Source
AI summary
A press-fit wire disposed in a magnetic device is provided. The press-fit wire includes a first wire and a second wire. The second wire is attached to the first wire. The first wire and the second wire are arranged along a first direction and are parallel circuits. The first wire and/or the second wire is a multi-strand wire.