Aerosol Generator Pneumatic Switch Locking via Vent Control
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Solution Overview
Problem
Pneumatic switches in aerosol generators can be accidentally triggered during assembly, transportation, or use, leading to unintended power output and safety issues such as dry heating or juice denaturation.
Innovation Solution
A power supply design with a mounting chamber, pneumatic switch, seal seat, and adjusting element, where the adjusting element controls communication between the sensing end of the pneumatic switch and the vent hole to lock or unlock the switch, preventing accidental triggering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pneumatic switch is configured in the power supply to trigger power output during user inhaling, then the atomizing device can be ignited, but the pneumatic switch may be triggered by mistake during assembly, transportation or use, leading to dry heating or juice denaturation
Solution Approach 1:
The pneumatic switch is divided into separate functional components: a sensing end with a diaphragm for detecting pressure changes, a valve body with air passage, and a sealing component. This segmentation allows the sensing function to be isolated from the power output mechanism, enabling reliable detection without accidental triggering during assembly or transportation.
Solution Approach 2:
The power supply is designed with a preliminary sealed state where the vent hole is blocked by default, preventing air from reaching the sensing end. The pneumatic switch is pre-configured in an inactive state, and only when the atomizing device is properly assembled and the user inhales (creating negative pressure) does the seal open to allow sensing. This preliminary action ensures the switch cannot be accidentally triggered before proper assembly.
2Speed
If the pneumatic switch is made sensitive to trigger during inhalation, then the ignition response is faster, but the switch becomes more prone to false triggering during assembly or transportation
Solution Approach 1:
The pneumatic switch incorporates a localized sealing mechanism at the vent hole that creates a pressure differential. The sealing component (plug or valve) is positioned to block the vent hole by default, maintaining a sealed local environment. When the user inhales, the negative pressure locally overcomes the sealing force, allowing air to pass through and trigger the switch. This localized quality control ensures high sensitivity during use while preventing false triggering during assembly or transportation.
Solution Approach 2:
The design incorporates a preliminary counteracting force through the sealing component that opposes the sensing mechanism. The sealing component (elastic plug or valve) applies a preliminary sealing action that prevents air from reaching the sensing end unless a sufficient pressure differential is created during proper inhalation. This preliminary anti-action creates a threshold effect that prevents false triggering while allowing rapid response when the correct condition is met.
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 accidental triggering of the pneumatic switch, reducing the risk of dry heating and juice denaturation, thereby enhancing user safety and reliability.
Implementation Method 1
peripheral part of the seal seat is elastically abutted against the wall of the mounting chamber
Implementation Method 2
a pneumatic switch... One end of the mounting chamber is provided with an inlet hole which communicate the air supplying end of the pneumatic switch with ambient air, and the other end is provided with the vent hole which communicate the sensing end of the pneumatic switch with ambient air
Data Source
AI summary
The present disclosure provides a power supply for an aerosol generator and an aerosol generator having the same. The power supply may include a power supplying main body including a mounting chamber, a pneumatic switch, a seal seat, and an adjusting element. The seal seat may be in socket joint with the pneumatic switch and may be accommodated in the mounting chamber, and a peripheral part of the seal seat may be elastically abutted against the wall of the mounting chamber. One end of the mounting chamber may include an inlet hole which communicates the air supplying end of the pneumatic switch with ambient air, and the other end is provided with the vent hole which may communicate the sensing end of the pneumatic switch with ambient air. The adjusting element may be rotatably connected to the power supplying main body.