Annular Magnetic Conduit Coupling for Tool-Free Sealed Joining
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Solution Overview
Problem
Conventional conduit couplings are complex, difficult to use in space environments with extreme temperatures and dust, and require multiple tools, limiting dexterity and tool carrying capacity for personnel in space suits.
Innovation Solution
A magnetic coupling system with annular magnetic elements and housings that allow tool-free coupling and uncoupling through magnetic attraction and repulsion, featuring a seal for dust and fluid protection, and a handle for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mechanical couplings are used, then coupling strength and reliability are improved, but device complexity and tool requirements increase
Solution Approach 1:
The patent replaces conventional mechanical coupling mechanisms (screws, bolts, wrenches) with a magnetic coupling system. The first and second annular magnetic elements create magnetic attraction forces that couple the conduits together, eliminating the need for complex mechanical fasteners and hand tools. The magnetic coupling provides sufficient holding force while dramatically simplifying the coupling mechanism.
Solution Approach 2:
The patent changes the fundamental coupling parameter from mechanical interlocking to magnetic attraction. By using magnetic field strength as the coupling mechanism rather than mechanical threads or clamps, the system achieves reliable coupling with simpler components. The magnetic elements can be adjusted in strength and configuration to provide appropriate coupling force for different applications.
2Strength
If conventional mechanical couplings are used, then coupling strength is improved, but ease of operation deteriorates in space environments
Solution Approach 1:
The magnetic coupling system replaces manual mechanical operations (turning wrenches, threading bolts) with simple magnetic attraction. The conduits are coupled by bringing them together so the magnetic elements attract, and uncoupled by overcoming the magnetic force. This is vastly easier to operate with gloved hands in space suits compared to fine mechanical manipulations.
Solution Approach 2:
The magnetic coupling system is self-aligning and self-coupling. The magnetic attraction automatically guides the conduits into proper alignment and secures them together without requiring precise manual positioning or complex alignment procedures. The system performs the coupling function automatically once the conduits are brought into proximity.
3Ease of operation
If tool-free magnetic coupling is used, then ease of operation is improved, but sealing capability against dust and fluid may worsen
Solution Approach 1:
The magnetic coupling system is divided into separate functional components: the magnetic elements for coupling, the housings for structural support, and seals for environmental protection. This segmentation allows each component to be optimized independently - the magnetic elements provide easy operation while the seals provide dust and fluid protection.
Solution Approach 2:
The patent introduces seals as intermediary elements between the magnetic coupling components and the external environment. These seals act as mediators that allow the magnetic coupling to function while blocking dust and fluid intrusion. The seals are positioned at the interfaces between housings and conduits, providing protection without interfering with the magnetic coupling mechanism.
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 reliable, tool-free coupling and uncoupling of conduits in space environments, reducing manual dexterity requirements and minimizing dust intrusion, suitable for use in extreme conditions.
Implementation Method 1
A first annular magnetic element is coupled to the first housing... A second annular magnetic element is coupled to the second housing... An air gap is disposed between the first annular magnetic element and the second annular magnetic element when the annular flange is engaged in the annular channel
Data Source
AI summary
A magnetic coupling system that includes a first housing disposed about an end of a first conduit. The first housing includes an axially-extending annular flange. A first annular magnetic element, coupled to the first housing and concentric with the annular flange, has a first plurality of magnetic polarities disbursed thereabout. A second housing, disposed about an end of a second conduit, includes an axially-extending annular channel for engagement with the annular flange. A second annular magnetic element is coupled to the second housing and is concentric with the annular channel. An air gap is disposed between the first annular magnetic element and the second annular magnetic element when the annular flange is engaged in the annular channel. The second annular magnetic element has a second plurality of magnetic polarities disbursed thereabout.