Refillable Vaping Device With Closed-Loop Temperature Control
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Solution Overview
Problem
Modern disposable vaping devices are environmentally wasteful and potentially harmful due to poor temperature control, lack of reusability, and negative environmental impact, leading to bans in several countries.
Innovation Solution
A hybrid disposable vaping device that is refillable and rechargeable, featuring a closed loop temperature control system with a heating element, automatic liquid filling, and battery charging subsystem, allowing multiple uses without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If modern disposable vaping devices are designed as single-use units, then ease of operation is improved, but environmental harm increases and device lifespan is reduced
Solution Approach 1:
The patent implements a rechargeable battery system that allows the device to be recovered and reused multiple times instead of discarded after single use. The battery can be recharged at charging stations, enabling the same device body to be used repeatedly with different refillable pods, thereby reducing environmental waste while maintaining operational simplicity.
Solution Approach 2:
The device is segmented into replaceable components: a durable main body containing the battery and electronics, and disposable/refillable pods containing the heating element and liquid reservoir. This segmentation allows the environmentally sensitive battery component to be reused while only the consumable pod portions are discarded, reducing overall environmental harm.
2Device complexity
If fixed power delivery is used in heating element, then device complexity is reduced, but temperature control precision deteriorates
Solution Approach 1:
The patent implements closed-loop temperature control using a temperature sensor that continuously monitors the heating element temperature and provides feedback to the control circuit. The control circuit adjusts the power delivery dynamically based on the temperature feedback, maintaining precise temperature control (within ±5°C of target) while managing complexity through integrated control algorithms.
Solution Approach 2:
The system dynamically changes the electrical parameters (voltage and current) delivered to the heating element based on temperature conditions. The control circuit modifies power delivery parameters in real-time according to temperature sensor readings, enabling precise temperature control without requiring overly complex hardware by leveraging parameter modulation.
3Loss of time
If disposable devices are discarded after liquid consumption, then loss of time for refilling is eliminated, but loss of substance increases due to waste
Solution Approach 1:
The patent implements pre-filled and refillable pods that come ready-to-use with atomizable liquid already loaded. The device is prepared in advance with sufficient liquid capacity to last through multiple charging cycles, eliminating the need for frequent refilling operations and reducing the time users spend on maintenance activities.
Solution Approach 2:
The reusable device body and rechargeable battery are recovered and reused across multiple cycles, while only the depleted pods are discarded. This selective recovery approach minimizes material waste by keeping the durable components in circulation and only disposing of the consumable liquid reservoir portions.
4Manufacturing precision
If temperature control is not implemented, then manufacturing precision requirements are reduced, but harmful emissions increase
Solution Approach 1:
The temperature sensor provides continuous feedback on heating element temperature, enabling the control circuit to maintain precise temperature control within ±5°C of the target temperature. This feedback mechanism ensures the heating element operates within safe temperature ranges, preventing the generation of harmful emissions from overheating while managing manufacturing precision requirements through software control.
Solution Approach 2:
The patent replaces complex mechanical temperature control mechanisms with electronic control systems. Instead of using mechanical thermostats or physical temperature regulation devices, the system uses electronic sensing and control circuits to regulate heating, reducing manufacturing precision requirements for mechanical components while effectively controlling emissions through electronic temperature management.
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
Reduces environmental impact by extending the device's lifespan, ensures safe and consistent vapor production, and avoids harmful emissions, making it compliant with regulatory standards.
Implementation Method 1
heat the heating element and generate an aerosol
Implementation Method 2
current to heat the heating element
Implementation Method 3
a small wick and a heating element in contact with the wick
Data Source
AI summary
A vaping system includes: (a) a disposable vaping device that includes the following non user-replaceable items: (i) a heating element; (ii) a rechargeable battery, and (iii) a liquid reservoir that provides liquid to the heating element; and (b) an automatic liquid filling device, including (i) a first aperture or port configured to receive a liquid bottle or container containing atomisable liquid; (ii) a second aperture or port configured to receive the vaping device; (iii) an electronic liquid level sensing sub-system; (iv) a liquid filling sub-system configured to pump liquid from the liquid bottle or container to the liquid reservoir in the vaping device and (v) a battery charging sub-system.