Switchable Magnetic Coupling for Variable Flux Engagement

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Solution Overview

Problem

Existing magnetic coupling devices lack flexibility in magnetic flux control and efficient engagement with ferromagnetic workpieces, particularly in varying operational conditions.

Innovation Solution

A magnetic coupling device with a switchable magnetic flux source comprising permanent magnets and ferromagnetic cores, allowing for adjustable magnetic states, including an ON, OFF, and partial ON states, facilitated by actuators and sensors for precise magnetic flux management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed magnetic flux source is used, then the device structure is simple, but the operational flexibility and adaptability to varying conditions are reduced

Engineering Contradiction:

Improveoperational flexibilityVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The magnetic flux source is made switchable between ON and OFF states through actuators that move permanent magnets relative to ferromagnetic cores. This dynamic configuration allows the device to adapt to varying operational conditions while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The magnetic coupling device can operate in multiple modes (ON state for strong coupling, OFF state for release or weak coupling) using the same basic components. The permanent magnets and ferromagnetic cores serve multiple functions depending on their relative positions, providing versatility without requiring completely separate systems for different operations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a switchable magnetic flux source with permanent magnets and ferromagnetic cores is used, then the magnetic flux control flexibility is improved, but the device complexity increases

Engineering Contradiction:

Improvemagnetic flux control flexibilityVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Permanent magnets are positioned within or adjacent to ferromagnetic cores, creating a nested arrangement where the magnet is surrounded by or integrated with the core structure. This nesting allows the magnetic flux to be concentrated and directed efficiently through the core while maintaining a compact overall device structure.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The switchable magnetic flux source replaces complex mechanical adjustment mechanisms with a simpler actuator system that moves permanent magnets into or out of engagement with ferromagnetic cores. This substitution provides precise magnetic flux control through controlled movement rather than complex mechanical linkages.

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

Enables robust and adaptable magnetic coupling with ferromagnetic workpieces, enhancing operational flexibility and efficiency by providing variable magnetic strengths and precise control over magnetic engagement.

Implementation Method 1

a magnetic coupling device for magnetically coupling to a ferromagnetic workpiece

Methodology Applied

Scientific EffectMagnetic coupling: Magnetism

Implementation Method 2

The switchable magnetic flux source including at least one permanent magnet and at least one ferromagnetic core

Methodology Applied

Scientific EffectFerromagnetism: Ferromagnetism

Data Source

PatentUS20260081510A1Magnetic coupling device

Publication Date: 2026.03.19 MAGSWITCH AUTOMATION CO

AI summary

Magnetic coupling devices are disclosed. The magnetic coupling devices may include at least one permanent magnet and at least one ferromagnetic core. The at least one permanent magnet may surround the at least one ferromagnetic core.