Connection Adapter Locking Mechanism for Safe Ventilation Path Sealing
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Solution Overview
Problem
Existing connection adapters for air-conditioning systems, particularly those using CO2 as a refrigerant, fail to meet high sealing requirements while ensuring durability and safety, often requiring a second energy source or mechanically fragile systems due to inadequate sealing arrangements for ventilation functions.
Innovation Solution
A connection adapter with a locking mechanism restricted to a lock position when the ventilation shut-off means closes the ventilation path, featuring a rotary actuation element that prevents premature opening of the main valve and uses simple, durable sealing elements like O-rings, ensuring safe and intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ventilation path is provided in the connection adapter, then the switching valve can be operated safely, but the sealing system becomes more complex and less durable
Solution Approach 1:
The ventilation function is extracted from the main sealing system by providing a separate, dedicated ventilation path that is independently sealable. This allows the main sealing system to focus on the primary fluid connection while the ventilation path has its own sealing arrangement, reducing overall system complexity and improving durability.
Solution Approach 2:
The sealing system is segmented into separate functional zones: one for the main fluid connection and another for the ventilation path. Each segment has its own sealing elements and control mechanisms, allowing independent operation and maintenance, which simplifies the overall sealing system design.
2Adaptability or versatility
If the locking mechanism can lock in multiple positions, then the connection adapter offers more operational flexibility, but incorrect operation may occur reducing safety
Solution Approach 1:
The locking mechanism is designed with preliminary anti-action by restricting it to lock in only one specific position - the position where the ventilation path is closed. This prevents operators from locking the mechanism in incorrect positions that would compromise safety, while still providing the necessary operational flexibility for the intended use case.
3Ease of manufacture
If existing sealing arrangements are used for ventilation function, then the connection adapter can be manufactured simply, but the sealing integrity under pressure is insufficient
Solution Approach 1:
The sealing arrangement for the ventilation path is designed with local quality by providing enhanced sealing elements specifically at the ventilation path closure point. This localized enhancement ensures high sealing integrity under pressure where needed, while maintaining simple manufacturing for the rest of the connection adapter body.
Data Source
AI summary
A connection adapter for producing a detachable fluid connection between a first fluid system and a second fluid system is provided, the connection adapter comprising a switching valve; a housing including a pressure chamber and a valve chamber fluidly connected; an actuation element to actuate the switching valve to selectively open and close the fluidic connection; a ventilation path leading out of the connection adapter from the valve chamber; a ventilation shut-off means to close and open the ventilation path; a connection element fluidly connecting the pressure chamber to the first fluid system; a quick fastener socket fluidly connecting to the valve chamber and connects the valve chamber to a connection element of the second flush system; and a locking mechanism to lock the quick fastener socket and is restricted to a locked position when the ventilation shut-off means closes off the ventilation path.