Nebulization Assembly Separation with Snap-Fit Leak Protection
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Solution Overview
Problem
Nebulization therapeutic devices face issues with liquid leakage from the liquid storage apparatus during dismounting, leading to potential short circuits and safety hazards, as well as problems with defective connections affecting sealing performance and liquid accessibility causing electric shock risks.
Innovation Solution
A method for dismounting and mounting the nebulization assembly involves switching between locked and unlocked states using snap-fitting structures and limiting elements to prevent leakage, ensuring separable and fixed states, and incorporating a locking element to enhance sealing. Additionally, a detection electrode is positioned outside the liquid storage cavity to prevent direct contact and a power supply exclusion mechanism to prevent accidental contact with electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the nebulization assembly is directly removed from the liquid storage apparatus, then the dismounting operation is simple and fast, but liquid medicine leaks through the liquid outlet causing short circuit between probes on the main unit
Solution Approach 1:
The device is divided into three separable components: main unit, liquid storage apparatus, and nebulization assembly. The liquid storage apparatus acts as an intermediate carrier that can be detached from the main unit while keeping the nebulization assembly connected, allowing safe dismounting without liquid leakage.
Solution Approach 2:
The liquid storage apparatus serves as an intermediary component between the main unit and nebulization assembly. By removing the liquid storage apparatus first (while it still contains liquid), the system prevents direct exposure of the main unit to leaking liquid, thus avoiding short circuits.
2Reliability
If the liquid storage apparatus is fixed to the main unit, then the structure is stable and liquid leakage is prevented, but the nebulization assembly cannot be easily dismounted for cleaning or replacement
Solution Approach 1:
The system is segmented into three detachable components with hierarchical connection relationships. The liquid storage apparatus connects to the main unit via snap-fitting structures for stable fixation during operation, while the nebulization assembly connects to the liquid storage apparatus for easy removal and cleaning.
Solution Approach 2:
The connection between liquid storage apparatus and main unit is dynamic - locked during operation for stability, but can be quickly unlocked and separated when dismounting is needed. The snap-fitting structures enable transition between fixed and separable states.
3Measurement precision
If the detection electrode is positioned inside the liquid storage cavity, then the liquid level detection is direct and accurate, but there is risk of electric shock when liquid contacts the electrode
Solution Approach 1:
The housing wall acts as an intermediary barrier between the detection electrode and the liquid medicine. The electrode detects liquid level through the non-conductive housing material, eliminating direct electrical contact while maintaining detection functionality.
Solution Approach 2:
Direct mechanical/electrical contact between electrode and liquid is replaced by electromagnetic field detection through the housing wall. The electrode generates an electromagnetic field that interacts with the liquid through the non-conductive barrier, eliminating shock risk.
4Ease of operation
If snap-fitting structures are used for quick connection and disconnection, then the operation is fast and convenient, but the sealing performance may be defective
Solution Approach 1:
The snap-fitting connection structure is merged with integrated sealing elements. The snap-fit mechanism and sealing function are combined into a single unified structure that achieves both quick connection and reliable sealing simultaneously.
Solution Approach 2:
Flexible sealing rings or films are incorporated into the snap-fitting structures. These elastic sealing elements deform during connection to ensure tight sealing, then maintain constant sealing pressure to prevent leakage while allowing quick disconnection.
Data Source
AI summary
A mounting and dismounting method for a nebulization assembly, and a nebulization therapeutic device. When performing dismounting of a nebulizer assembly, a whole formed by a nebulization assembly and a liquid storage apparatus may be removed from a main unit when the nebulization assembly and the liquid storage apparatus are in a first assembly state; whereby, the problem of liquid medicine leakage is prevented, and the risk of a short circuit between detection pins of the main unit is reduced. The nebulization assembly and the liquid storage apparatus are switched to a second assembly state; at this point the nebulization assembly and the liquid storage apparatus are in a separable state, and the nebulization assembly may be smoothly taken off of the liquid storage apparatus; even if liquid medicine leakage occurs during this process, the main unit is unaffected, thereby improving use safety.