Ultrasonic Nebulizer Tank Mounting Detection
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Solution Overview
Problem
The existing ultrasonic nebulizers with detachable tank units pose a risk of electric shock to users when the tank unit is not mounted correctly, and their configuration is complex for detecting the proper mounting of tank unit elements.
Innovation Solution
Incorporating a medicine tank cover detection unit that uses a magnet to detect the correct mounting of the tank unit on the main body, preventing the output of the oscillation circuit from appearing on the main body-side contact electrode and thus eliminating the risk of electric shock, while simplifying the configuration by relying on the detection of the air duct's adjacency to the main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tank unit is configured to be detachable with respect to the main body to enable easy cleaning and disinfection, then ease of operation is improved, but the risk of electric shock increases when the tank unit is not properly mounted
Solution Approach 1:
The system performs preliminary detection of the tank unit mounting state through the medicine tank cover detection unit before enabling the atomization operation. The control unit checks whether the air duct is adjacent to the main body and prevents operation until proper mounting is confirmed, thereby eliminating electric shock risk before it can occur.
Solution Approach 2:
The air duct serves as an intermediary element that enables detection of the tank unit mounting state. By detecting whether the air duct is adjacent to the main body, the system indirectly determines if the tank unit is properly mounted, using this intermediary signal to control the atomization operation and prevent electric shock.
2Reliability
If multiple detection elements are used to detect whether the tank unit is properly mounted, then reliability is improved, but device complexity increases
Solution Approach 1:
The medicine tank cover detection unit serves multiple functions: it detects whether the medicine tank cover is properly mounted, determines the overall mounting state of the tank unit, and controls the atomization operation. This multi-functional approach achieves reliable detection without requiring separate detection elements for each function.
Solution Approach 2:
The detection function for the mounting state is merged into the medicine tank cover detection unit by detecting the position of the air duct. Instead of using separate detection elements for the cover and the mounting state, the system combines these functions into a single detection mechanism that checks air duct adjacency to the main body.
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
This solution effectively prevents electric shock and simplifies the configuration by ensuring the tank unit is correctly mounted before allowing the atomization operation, using a magnet-based detection method that is cost-effective and easy to implement.
Implementation Method 1
an ultrasonic vibrator incorporated in the working tank; ultrasonic vibration generated by the ultrasonic vibrator is transmitted to the medicine tank via the working liquid in the working tank, and the medicinal liquid in the medicine tank is atomized
Implementation Method 2
an air fan configured to blow air into the medicine tank through the air duct of the medicine tank cover
Data Source
AI summary
An ultrasonic nebulizer includes a tank unit configured to be detachable with respect to a main body. The tank unit includes a working tank in which an ultrasonic vibrator is incorporated, a medicine tank, and a medicine tank cover, which are arranged overlaid in the stated order. The output of an oscillation circuit in the main body is applied to the ultrasonic vibrator through a main body-side contact electrode and a tank-side contact electrode when the tank unit is mounted on the main body. The main body includes an air fan that blows air into the medicine tank through an air duct of the medicine tank cover, and a medicine tank cover detection unit that detects whether or not the air duct of the medicine tank cover is adjacent to the main body so as to detect whether or not the tank unit is mounted on the main body.