Capacitive Liquid Sensing for Low-Spill Aerosol Refilling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Refilling disposable aerosol provision articles, such as e-cigarettes, is cumbersome and can lead to material spillage and environmental waste, especially due to the difficulty in aligning refill bottles with small orifices and the potential danger of liquid nicotine exposure.
Innovation Solution
A refilling device equipped with capacitive sensors, comprising first and second capacitor plates, measures the capacitance of the storage area to accurately determine the presence and fluid level of aerosolizable material in refillable articles or reservoirs, ensuring precise and safe refilling without manual alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual refilling is used, then the user can refill the article, but alignment difficulty leads to spillage and waste
Solution Approach 1:
The patent replaces manual mechanical alignment with an automated capacitive sensing system. The sensor detects the position of the refillable article's storage area and guides the refilling process automatically, eliminating the need for manual alignment and preventing spillage through precise positioning.
Solution Approach 2:
The system enables self-aligning refilling through capacitive sensing. The sensor automatically detects the article's position and the refilling device adjusts accordingly, allowing the system to service itself without manual intervention for alignment, thereby preventing spillage while maintaining ease of operation.
2Ease of operation
If manual refilling is used, then the user can refill the article, but safety risks arise from liquid nicotine exposure
Solution Approach 1:
The patent replaces manual refilling operations with an automated capacitive sensing and positioning system. This eliminates direct user contact with liquid nicotine during the refilling process, removing the safety hazard while maintaining operational convenience through automatic guidance and positioning.
Solution Approach 2:
The capacitive sensing system acts as an intermediary between the user and the refilling process. It detects article position and guides the automated refilling, serving as a mediator that eliminates direct user exposure to hazardous liquid nicotine while enabling convenient refilling operations.
3Ease of operation
If disposable articles are used, then convenience is improved, but environmental waste increases
Solution Approach 1:
The patent implements a refilling system that recovers and reuses the article body instead of discarding it. The capacitive sensing system enables precise refilling of reusable articles, allowing the user to discard only the depleted fluid while retaining the article container, thereby reducing environmental waste while maintaining convenience.
4Loss of substance
If refilling devices are introduced, then spillage is reduced, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical alignment mechanisms with a simpler capacitive sensing system. The sensor electronically detects article position and guides refilling through electronic control rather than mechanical guides, reducing mechanical complexity while effectively preventing spillage.
Solution Approach 2:
The patent replaces manual mechanical alignment mechanisms with a simpler capacitive sensing system. The sensor electronically detects article position and guides refilling through electronic control rather than mechanical guides, reducing mechanical complexity while effectively preventing spillage.
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
The capacitive sensing system enables convenient, safe, and accurate refilling of aerosol provision systems by determining fluid levels and presence, reducing waste and minimizing spillage risks.
Implementation Method 1
a capacitive sensor configured to measure a capacitance of the storage area when the article or reservoir is received in the interface
Data Source
AI summary
A refilling device for filling an article including an interface, for receiving an article of an aerosol provision system, the article having a storage area for fluid, or a reservoir interface for receiving a reservoir for filling the article, the reservoir having a storage area for fluid; and a capacitive sensor configured to measure a capacitance of the storage area when the article or reservoir is received in the interface; wherein the capacitive sensor includes a first capacitor plate and a second capacitor plate arranged at opposite sides of the interface to form a capacitance measurement volume in which the storage area of an article or reservoir is located when the article or reservoir is received in the interface, the capacitance measurement volume being between the first and second capacitor plates and extending from a perimeter of the first capacitor plate to a perimeter of the second capacitor plate, the capacitance measurement volume having a size such that the storage area of the article or reservoir received in the interface is located wholly within the capacitance measurement volume.