Cam-Driven Aerosol Refill Mechanism for Spill-Controlled Transfer
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Solution Overview
Problem
Existing aerosol provision systems face issues with inconvenient and wasteful refilling processes for disposable articles, leading to potential spillage and environmental harm, as well as reliability concerns due to continuous use of depleted components.
Innovation Solution
A refilling device with a coordinated mechanism using a motor-driven cam system to transfer aerosol-generating material from a reservoir to a refillable article, incorporating a nozzle block with a syringe and check valve for controlled fluid transfer, and optionally featuring capacitive sensing for article detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual refilling is used, then device complexity is reduced, but refilling convenience deteriorates and material spillage increases
Solution Approach 1:
The refilling device automatically performs the refilling operation without requiring manual pouring. The motor-driven cam mechanism coordinates the movement of the reservoir, plunger, and article to complete the transfer of aerosol-generating material automatically, eliminating the need for user manual refilling actions
Solution Approach 2:
A motor-driven cam mechanism serves as an intermediary system between the reservoir and article. This mechanism coordinates the complex movements of multiple components (reservoir interface, plunger, article interface) to enable automated material transfer, reducing the complexity of manual operation
2Duration of action of stationary object
If continuous refilling is allowed, then article lifespan is extended, but reliability deteriorates due to component degradation
Solution Approach 1:
The system incorporates sensors to detect the level of aerosol-generating material in the article and provides feedback to the control circuitry. This enables the system to determine when the article is full or when refilling should stop, preventing overfilling and ensuring reliable operation throughout the extended lifespan
Solution Approach 2:
The refilling process operates in controlled periodic cycles rather than continuous operation. The motor-driven cam mechanism performs coordinated movements in discrete cycles, allowing controlled material transfer while enabling monitoring and control to prevent component degradation from excessive use
3Manufacturing precision
If automated refilling is implemented, then refilling precision is improved, but device complexity increases
Solution Approach 1:
A motor-driven cam mechanism serves as an intermediary system that translates simple rotational motion into the coordinated movements of multiple components. This intermediary mechanism achieves precise material transfer control while managing the complexity through a single driving motor and cam profile design
Solution Approach 2:
The system merges the functions of the reservoir interface, plunger mechanism, and article interface into a single coordinated system driven by one motor. This integration achieves precise material transfer through combined movements rather than requiring separate precise control systems for each component
4Loss of substance
If manual refilling is used, then device complexity is reduced, but material loss increases due to spillage
Solution Approach 1:
The automated refilling system performs the material transfer without requiring manual pouring operations. The coordinated movement of the plunger and reservoir interface ensures complete and controlled transfer of aerosol-generating material from the reservoir to the article, eliminating spillage that occurs during manual refilling
Solution Approach 2:
The motor-driven cam mechanism acts as an intermediary that controls the material transfer process. It coordinates the movement of the plunger and reservoir interface to ensure precise, controlled transfer of material, preventing loss through spillage while managing the system complexity
Data Source
AI summary
A refilling device for refilling an article from a reservoir includes an article interface configured to receive the article, a reservoir interface configured to receive the reservoir, a plunger configured, in use, to engage with the reservoir, and a motor configured to drive a cam mechanism coupled to each of the article interface, the reservoir interface and the plunger such that, in use, the article, the reservoir and the plunger move in a coordinated manner such that aerosol-generating material is transferred from the reservoir to the article.