Vehicle Component Fixing With Rotating Magnetic-Mechanical Coupling

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Solution Overview

Problem

Existing vehicle component attachment methods, such as mechanical and magnetic fixation, face issues with durability and insufficient coupling force, respectively, when coupling a cabin and loading unit in vehicles like electric and autonomous vehicles.

Innovation Solution

A vehicle component fixing device that combines mechanical and magnetic fastening using a rotatable circular magnetic body within an assembly module, where the detachable unit is secured by a rocker mechanism and a magnetic circuit change, allowing easy assembly and disassembly with enhanced coupling force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If mechanical fixation is used to couple the cabin and loading unit, then the coupling force is strong, but additional labor is required for assembly and disassembly

Engineering Contradiction:

Improvecoupling forceVSAvoidassembly and disassembly labor

Core Design Contradiction:

ForceVSEase of operation

Solution Approach 1:

The patent combines mechanical and magnetic fixation systems into a single integrated coupling mechanism. The mechanical component provides structural support and alignment, while the magnetic component provides holding force, eliminating the need for separate assembly operations and reducing labor requirements while maintaining strong coupling force.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces pure mechanical fixation with a hybrid system that incorporates magnetic fields. The magnetic component partially substitutes for mechanical fastening, enabling easier assembly and disassembly operations while maintaining adequate coupling force through the magnetic attraction between paired components.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If magnetic fixation is used to couple the cabin and loading unit, then assembly and disassembly is easy, but the coupling force is insufficient

Engineering Contradiction:

Improveassembly and disassembly easeVSAvoidcoupling force

Core Design Contradiction:

Ease of operationVSForce

Solution Approach 1:

The patent merges mechanical and magnetic fixation systems into a single integrated coupling mechanism. The mechanical component provides structural support and alignment, while the magnetic component provides holding force, eliminating the need for separate assembly operations and reducing labor requirements while maintaining strong coupling force.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a composite fixation system combining mechanical structures with magnetic fields. This composite approach leverages the advantages of both systems: the structural integrity and alignment capabilities of mechanical components combined with the ease of assembly and sufficient holding force of magnetic fixation.

Inventive Principle:

Principle #40Composite materials

3Adaptability or versatility

If frequent assembly and disassembly is performed, then adaptability is improved, but durability is reduced

Engineering Contradiction:

Improveassembly flexibilityVSAvoiddurability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes changes in magnetic field strength and orientation to control the coupling state. By adjusting magnetic parameters such as field strength and polarity, the system enables reliable repeated assembly and disassembly operations without degrading durability, as the magnetic field can be dynamically adjusted without mechanical wear.

Inventive Principle:

Principle #35Parameter changes

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

Provides a secure and efficient attachment method that balances ease of detachment and attachment while maintaining a strong coupling force, suitable for forming additional internal spaces in vehicles.

Implementation Method 1

a magnetic circuit is changed in response to the rotation of the circular magnetic body so that the detachable unit is magnetically fastened to the vehicle body

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS20250222991A1Vehicle component fixing device

Publication Date: 2025.07.10 HYUNDAI MOTOR CO LTD

AI summary

In a vehicle component fastening device, the vehicle component fastening device includes: a detachable unit assembled to a vehicle body to form an internal space in a vehicle; an assembly module which is provided on the vehicle body and to which the detachable unit is selectively coupled, wherein, inside the module, a circular magnetic body is rotatably mounted, and in response to the rotation of the circular magnetic body, the detachable unit is mechanically fastened to the vehicle body and a magnetic circuit is changed simultaneously therewith so that the detachable unit is magnetically fastened to the vehicle body; and a detachable module configured to rotate the circular magnetic body inside the assembly module by receiving power externally or from the vehicle.