Atomizing Device Liquid Level Detection via Signal Intensity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic cigarettes lack a mechanism to prevent dry-burning of the liquid guiding assembly, leading to the generation of harmful gases when the tobacco liquid is depleted, as the system cannot detect the need for refilling and continues to operate, causing the heating wire to burn out.
Innovation Solution
An atomizing device with a signal transmitter and receiver is integrated into the electronic cigarette, which transmits and receives detection signals of varying intensities to determine the amount of tobacco liquid and control the electrical connection between the heating and battery assemblies, preventing dry-burning by turning off the power when the liquid is low.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the heating assembly continues to operate without liquid level detection, then the device can maintain continuous functionality, but the liquid guiding assembly will suffer dry-burning and generate harmful gases
Solution Approach 1:
The patent installs a signal transmitter and signal receiver to detect the tobacco liquid level in advance. When the liquid level is low, the system提前 (in advance) issues a low liquid level warning and stops the heating assembly before dry-burning occurs, preventing harmful gas generation while maintaining reliable operation
Solution Approach 2:
The patent implements a feedback mechanism where the signal receiver detects the transmission signal intensity, determines the tobacco liquid level, and feeds this information back to the control circuit. The control circuit then adjusts the heating assembly operation accordingly, creating a closed-loop control system that prevents dry-burning while ensuring continuous safe operation
2Reliability
If a signal transmitter and receiver are added to detect tobacco liquid levels, then dry-burning is prevented, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical liquid level detection mechanisms with an optical or electromagnetic detection system using signal transmitters and receivers. This substitution achieves reliable dry-burning prevention while keeping the structure relatively simple, as the optical/electromagnetic system requires fewer moving parts and mechanical components
Solution Approach 2:
The signal transmitter and receiver system serves multiple functions: it detects liquid levels, provides low liquid level warnings, and controls heating assembly operation. This multi-functionality reduces the need for separate detection and control mechanisms, thereby limiting the increase in device complexity while achieving reliable dry-burning prevention
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
Prevents dry-burning of the liquid guiding assembly, thereby protecting users from harmful gases by ensuring the heating assembly is only activated when sufficient tobacco liquid is present, thus maintaining safe operation.
Implementation Method 1
the signal transmitter is an infrared signal transmitter, and the signal receiver is an infrared signal receiver
Implementation Method 2
the signal transmitter is an ultrasonic signal transmitter, and the signal receiver is an ultrasonic signal receiver
Implementation Method 3
a heating assembly electrically connected to the battery assembly and configured for atomizing the tobacco liquid
Data Source
AI summary
An atomizing device, an electronic cigarette and a control method for the atomizing device are disclosed. The atomizing device includes a liquid storage assembly configured for storing a tobacco liquid, a liquid guiding assembly connected to the liquid storage assembly and configured for guiding the tobacco liquid, and a heating assembly electrically connected to the battery assembly and configured for atomizing the tobacco liquid; and includes a signal transmitter configured for transmitting a detection signal having a first intensity and a signal receiver configured for receiving a detection signal having a second intensity. The electronic cigarette determines the amount of tobacco liquid on a transmission path of the detection signal according to a difference between the first intensity and the second intensity, and controls on/off of the electrical connection between the heating assembly and the battery assembly according to the determined amount of tobacco liquid.