Androgynous Modular Connector for Spacecraft Docking
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Solution Overview
Problem
Current modular devices, such as spacecraft modules, lack interconnectivity, hindering the development of the satellite industry and other robotic and electrical systems due to the absence of a standard communication and connection mechanism.
Innovation Solution
The development of self-aligning and androgynous modular connectors that enable automated docking and data transfer between modular devices, supporting load-bearing mechanical connections, electrical power transfer, and multiple docking orientations, with features like claw assemblies, swivel arm assemblies, and interface boards for wireless communication and fluid transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If modular devices are designed by different companies or nations without a standard connection mechanism, then each company can optimize its own devices independently, but the devices cannot connect, support, or communicate with each other
Solution Approach 1:
The patent implements a universal connector design that can dock with itself and other compatible modules from different manufacturers. The connector integrates multiple functions including mechanical docking, electrical power transfer, data communication, and fluid transfer through a single standardized interface, enabling interconnectivity across diverse modular devices while maintaining a unified structure.
Solution Approach 2:
The connector is divided into separate functional components: a mechanical docking structure for physical connection, electrical contacts for power and data transfer, and fluid ports for hydraulic or pneumatic connections. This segmentation allows each component to be optimized independently while working together as a unified system that reduces overall complexity.
2Strength
If traditional docking mechanisms are used, then mechanical connection can be established, but momentum transfer and force during docking can be significant
Solution Approach 1:
The system performs preliminary wireless communication and data exchange between modules before physical docking occurs. This allows the modules to exchange docking parameters, align their interfaces, and prepare their mechanical and electrical systems in advance, reducing the force and momentum required during the actual docking event while ensuring a strong final connection.
Solution Approach 2:
The connector incorporates movable components including extendable claws and adjustable electrical contacts that can dynamically adapt during the docking process. These components engage in a controlled sequence, with softer initial contact followed by progressive engagement of load-bearing elements, distributing the docking force over time and reducing peak momentum transfer while achieving strong mechanical connection.
3Productivity
If automated docking is implemented, then connection speed and productivity improve, but the docking mechanism becomes more complex
Solution Approach 1:
The connector incorporates sensors and actuators that enable automated detection, alignment, and engagement without external control systems. The mechanical claws automatically extend and latch when modules approach, electrical contacts self-align through spring mechanisms, and the system can autonomously establish mechanical, electrical, and fluid connections, achieving high productivity through self-contained automation that minimizes added complexity.
4Ease of operation
If multiple docking orientations are supported, then versatility and ease of operation improve, but alignment precision and mechanical stability become more difficult to maintain
Solution Approach 1:
The connector uses asymmetric geometric features including shaped docking surfaces and positioned lugs that provide mechanical guidance and constraint. These asymmetric elements ensure precise alignment when modules approach in any supported orientation, maintaining manufacturing precision through built-in geometric constraints rather than relying on complex active alignment systems.
Data Source
AI summary
Androgynous modular connectors (e.g., modular spacecraft connectors) are disclosed herein. The modular connectors can include prismatic-shaped body with side panels, a base, and a face panel. The face panel can include three or more sides that define an opening. A claw assembly can be housed within the prismatic-shaped body. The claw assembly can include two or more extendable arms. A motor can be housed within the prismatic-shaped body. The motor can be operatively connected to the claw assembly. The motor can be configured to extend and retract the claw assembly.