Atomizer Wick Venting for Balanced Pressure and Dry-Burn Prevention
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Solution Overview
Problem
Conventional electronic atomization devices face issues with insufficient liquid supply to the heating element due to excessive air bubble aggregation on the liquid absorbing surface, leading to dry burning.
Innovation Solution
An atomizer design featuring a second capillary wick element that allows air exchange above the liquid level, using a capillary channel to balance air pressure and ensure continuous liquid supply to the heating element, preventing dry burning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If an air exchange channel is provided to replenish air into the liquid storage cavity, then air pressure balance is maintained, but air bubbles aggregate on the liquid absorbing surface preventing continuous liquid supply
Solution Approach 1:
The air exchange function is segmented from the liquid supply path by introducing a separate air exchange channel that is spatially separated from the liquid absorbing surface. This allows air to be replenished without directly contacting the liquid absorbing surface, thus preventing bubble aggregation while maintaining pressure balance.
Solution Approach 2:
A one-way valve is introduced as an intermediary component in the air exchange channel. This valve mediates the air flow by allowing air to enter the liquid storage cavity while preventing liquid from being drawn into the air exchange channel, thereby solving the conflict between air pressure balance and continuous liquid supply.
2Stress or pressure
If external air enters the liquid storage cavity through the air exchange channel, then air pressure is balanced, but air bubbles aggregate on the liquid absorbing surface causing dry burning
Solution Approach 1:
The harmful air bubbles are extracted from the liquid supply path by routing the air exchange channel separately from the liquid absorbing surface. The one-way valve further extracts and isolates the air flow, preventing bubbles from reaching the liquid absorbing surface and causing dry burning.
Solution Approach 2:
The air pressure imbalance that could cause harmful bubble aggregation is converted into a beneficial controlled air exchange mechanism. The one-way valve allows air to enter and balance pressure while the separate channel design ensures this air exchange occurs without creating harmful bubbles on the liquid absorbing surface.
3Reliability
If the liquid storage cavity is sealed to maintain liquid supply, then continuous atomization is enabled, but air pressure cannot be balanced leading to inhalation resistance
Solution Approach 1:
The sealed liquid storage cavity is segmented from the air exchange function by introducing a separate air exchange channel with a one-way valve. This allows the cavity to remain sealed for continuous liquid supply while providing a dedicated path for air pressure balancing, eliminating inhalation resistance.
Solution Approach 2:
The one-way valve acts as an intermediary that maintains the sealed nature of the liquid storage cavity for continuous liquid supply while simultaneously providing air exchange capability. This intermediary component resolves the contradiction by allowing both sealed operation and air pressure balancing to coexist.
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 by maintaining consistent liquid supply to the heating element through balanced air pressure and capillary action, ensuring continuous operation.
Implementation Method 1
a first capillary wick element and a heating element bonded to the first capillary wick element, and the first capillary wick element being disposed at the second opening and configured to transfer the liquid substrate to the heating element
Implementation Method 2
a surface of the second capillary wick element at least partially defines a capillary channel or a material of the second capillary wick element has a capillary channel therein, the capillary channel providing an air path for air exchange between external air and the liquid storage cavity
Implementation Method 3
the heating element may heat and atomize the liquid substrate to generate aerosol
Implementation Method 4
The liquid substrate is heated by the heating element to undergo atomization, thereby generating inhalable vapor or aerosol
Data Source
AI summary
An atomizer and an electronic atomization device. The atomizer includes: a liquid storage portion defining a liquid storage cavity, configured to store a liquid substrate and having a proximal end and a distal end oppositely disposed, a first opening in communication with the liquid storage cavity being disposed at the proximal end, and a second opening in communication with the liquid storage cavity being disposed at the distal end; a suction nozzle assembly disposed at the proximal end of the liquid storage portion; an atomization element including a first capillary wick element and a heating element bonded to the first capillary wick element, and the first capillary wick element being disposed at the second opening and configured to transfer the liquid substrate to the heating element; and a second capillary wick element disposed at the proximal end of the liquid storage portion and at least partially closing the first opening.