Magnetic Coupling in Spherical Self-Propelled Accessory Attachment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Remote controlled devices require specialized controllers and physical fastening means for accessories, limiting flexibility and ease of use in connecting and controlling accessories to self-propelled devices.
Innovation Solution
A self-propelled device with a spherical housing and internal drive system, utilizing magnetic coupling to attach and maintain an external accessory, allowing for wireless operation and reduced friction through magnetically interactive components and biasing assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If physical fastening means are used to connect accessories to self-propelled devices, then the connection strength is improved, but the ease of operation and flexibility deteriorate due to complex attachment and detachment processes
Solution Approach 1:
The patent replaces traditional mechanical fastening systems (screws, clips, latches) with a magnetic coupling system. Magnets embedded in the self-propelled device housing attract and hold accessory components through magnetic force, eliminating the need for mechanical fasteners. This substitution maintains strong connection strength while dramatically improving ease of operation, as accessories can be attached and detached simply by bringing them near the magnetic field, without tools or complex manipulation.
Solution Approach 2:
The patent utilizes magnetic field strength as a controllable parameter to achieve variable connection characteristics. By adjusting magnet size, material, and arrangement, the system provides sufficient holding force during operation while allowing easy release when the accessory is deliberately brought close to the housing. This parameter-based control enables both strong connection and easy operation under different conditions.
2Measurement precision
If specialized remote controllers are used for remote controlled devices, then the control precision is improved, but the adaptability and versatility deteriorate
Solution Approach 1:
The patent integrates the remote control functionality directly into the self-propelled device housing, making the housing itself a universal controller for all magnetically coupled accessories. The housing contains control electronics and communication interfaces that can operate with any accessory attached, eliminating the need for accessory-specific remote controllers. This universal design maintains control precision through direct integration while dramatically improving adaptability to work with different accessory types.
Solution Approach 2:
The patent merges the remote control function with the housing structure, combining what were previously separate components (housing and controller) into a single integrated unit. This consolidation allows the housing to serve dual purposes: structural containment and active control of accessories. The merged design improves versatility by enabling one controller to manage multiple accessories while maintaining precision through integrated signal pathways.
3Ease of operation
If magnetic coupling is used to attach accessories, then the ease of operation and flexibility are improved, but the connection strength may deteriorate under high stress conditions
Solution Approach 1:
The patent employs composite attachment where magnetic forces work in conjunction with mechanical interface elements. The magnetic field provides the primary holding force for normal operation, while mechanical features (such as interlocking shapes, friction surfaces, or secondary latches) provide backup support under high stress. This composite approach maintains ease of operation through magnetic attraction while ensuring sufficient connection strength when subjected to extreme forces or unexpected loads.
Solution Approach 2:
The patent utilizes spherical or curved housing geometry to distribute magnetic forces more evenly across the accessory interface. The curved surfaces allow for larger contact areas between the magnetic field and accessory, spreading the stress distribution. This geometric approach strengthens the magnetic connection without requiring stronger individual magnets, thereby maintaining both ease of operation and improved stress resistance.
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 flexible and stable attachment of accessories to self-propelled devices, reducing friction and maintaining constant positioning during movement, while allowing for wireless control and operation.
Implementation Method 1
Magnetically interactive components or elements may be included within the spherical housing. The magnetically interactive components or elements can be comprised of ferrous metal or permanent magnets, such as neodymium magnets, to provide a magnetic field through the spherical housing to magnetically interact with an external accessory.
Implementation Method 2
The accessory device can remain within a constant relative portion or area on the exterior surface of the spherical housing as the self-propelled device rolls. Magnetically interactive components or elements may be included within the spherical housing... to magnetically interact with an external accessory.
Data Source
AI summary
A self-propelled device includes a spherical housing and an internal drive system. The self-propelled device can further include an internal structure having a magnet holder that holds a first set of magnets and an external accessory comprising a second set of magnets to magnetically interact, through the spherical housing, with the first set magnets.