E-Liquid Reservoir Electrode Layout for Accurate Remaining Volume Detection
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Solution Overview
Problem
Existing electronic vaporization apparatuses face challenges in accurately detecting the remaining volume of to-be-vaporized liquid, leading to potential dry burning due to complex and costly detection methods and erroneous determinations.
Innovation Solution
A liquid storage assembly with a reference element and detection elements, utilizing capacitance or resistance detection between electrodes to determine the remaining volume of to-be-vaporized liquid, simplifying the design and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is used to detect the remaining volume of to-be-vaporized liquid, then the detection function is achieved, but the design becomes complex
Solution Approach 1:
The patent replaces complex sensor-based detection systems with a simple resistance detection method using a heating wire. The heating wire serves dual purposes: vaporizing liquid and detecting remaining volume through resistance changes. This substitution of mechanical/electronic sensor systems with a simpler electrical property-based detection resolves the contradiction between achieving accurate measurement and maintaining simple design.
2Measurement precision
If a heating wire is used to detect the remaining volume, then the detection function is achieved, but the material cost becomes too high
Solution Approach 1:
The heating wire performs multiple functions simultaneously: it vaporizes the liquid during normal operation and serves as a detection element by measuring its resistance to determine remaining liquid volume. This multi-functionality eliminates the need for separate expensive detection materials, resolving the contradiction between achieving detection capability and controlling material costs.
Solution Approach 2:
The heating wire detects remaining liquid volume using its own electrical resistance property without requiring external detection materials. The system uses its operational component (heating wire) to perform the detection function, making the detection process self-service and eliminating additional material costs.
3Measurement precision
If existing detection methods are used, then some detection capability is provided, but the detection accuracy is insufficient leading to erroneous determinations
Solution Approach 1:
The system continuously monitors the resistance of the heating wire and uses this feedback to accurately determine remaining liquid volume. The detection circuit measures resistance changes in real-time, providing reliable feedback that prevents erroneous determinations and enables accurate control of the vaporization process.
Solution Approach 2:
The patent detects remaining liquid volume by measuring changes in the electrical resistance parameter of the heating wire. As liquid level changes, the thermal conduction conditions change, causing resistance variations that accurately reflect the remaining volume. This parameter-based detection method provides high accuracy and reliability.
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 solution provides accurate detection of the remaining liquid volume, preventing dry burning by ensuring the apparatus stops operation when liquid is depleted, thus enhancing detection precision and reducing costs.
Implementation Method 1
a detection circuit electrically connected to the reference element and the at least one detection element, the detection circuit being configured to detect capacitance between the reference element and the at least one detection element
Implementation Method 2
detect capacitance between the reference element and the at least one detection element or resistance of the to-be-vaporized liquid
Data Source
AI summary
A liquid storage assembly includes: a liquid storage cavity for storing to-be-vaporized liquid; a reference element at least partially located in the liquid storage cavity and including a reference electrode; at least one detection element at least partially located in the liquid storage cavity, the at least one detection element being spaced apart from the reference element and including a detection electrode; and a detection circuit electrically connected to the reference element and the at least one detection element, the detection circuit detecting capacitance between the reference element and the at least one detection element or resistance of the to-be-vaporized liquid, and determining a remaining volume of the to-be-vaporized liquid according to the detected capacitance or resistance.