Cryogenic Rack Gripper With Moisture Diversion and Spacer Pins
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Solution Overview
Problem
Current cryogenic storage systems face challenges in efficiently and safely retrieving and managing sample racks within cryogenic environments, particularly due to issues with frost buildup and moisture management, which can lead to operational inefficiencies and sample integrity concerns.
Innovation Solution
A cryogenic storage system incorporating an automated retrieval system with a gripping module, moisture diverter, and sensing rod to engage with sample racks, allowing for controlled and frost-resistant handling, and a method involving a gripping module with a latch and spacer pins to securely grasp and elevate racks within an insulating sleeve for user access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual rack removal is used, then operational simplicity is maintained, but frost buildup and moisture management become problematic
Solution Approach 1:
The gripping module serves as an intermediary device between the automated retrieval system and the sample rack. It features a moisture diverter that actively directs moisture away from the gripping surfaces, preventing frost buildup while enabling automated operation. The diverter includes a moisture seal and drainage path that channels condensed moisture away from critical engagement areas.
2Productivity
If automated retrieval system is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The automated retrieval system is segmented into distinct functional modules: a gripping module with moisture diverter, a sensing rod for detection, a latch mechanism for secure engagement, and an automated actuation system. This modular segmentation allows each component to perform its specific function efficiently while simplifying the overall system architecture and maintenance.
3Reliability
If gripping module engages directly with mounting surface, then secure engagement is achieved, but moisture contact increases
Solution Approach 1:
The moisture diverter extracts and removes moisture from the engagement interface between the gripping module and the sample rack mounting surface. The diverter creates a drainage path that actively channels condensed moisture away from the gripping surfaces, ensuring that the engagement interface remains dry and frost-free while maintaining secure mechanical engagement.
4Object-affected harmful factors
If spacer pins are used to prevent contact, then frost-resistant handling is improved, but alignment precision must be maintained
Solution Approach 1:
Spacer pins are strategically positioned at specific locations on the gripping module to create localized non-contact zones. This allows the majority of the gripping surface to maintain precise engagement with the mounting surface for secure holding, while the spacer pins create localized gaps that prevent frost and moisture buildup at critical areas. The locating pins work in conjunction with corresponding holes to maintain precise alignment.
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
The present invention relates to a device for engaging with a sample rack (480). The device comprises a bracket configured to be coupled with an automated retrieval system; a gripping module (1112) configured to engage with a mounting surface (1173) of a sample rack (480); a shaft extending between the bracket and the gripping module (1112). The gripping module (1112) further includes at least one spacer pin (2824) extending downward from a bottom surface of the gripping module (1112), the at least one spacer pin (2824) configured to contact the mounting surface (1173) of the sample rack (480) when the gripping module (1112) is engaged with the mounting surface (1173).