Electronic Cigarette Sensor Support Structure for Liquid Protection
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Solution Overview
Problem
Electronic cigarette rods experience functional insensitivity or loss due to e-liquid or mist accumulation, which blocks air inlet channels and damages components over time, leading to sensor inactivation.
Innovation Solution
A support structure within the electronic-cigarette rod that includes a receiving cavity for the sensor, an air inlet channel, and an airflow channel, with specific openings and sealing elements to prevent liquid and mist from entering the sensor area, ensuring the air inlet channel is sealed and preventing damage from immersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the air inlet channel is left open for sensor access, then the sensor can detect air flow, but e-liquid or liquid can flow into the sensor through the air inlet channel, blocking air holes and damaging components
Solution Approach 1:
The patent divides the internal cavity into separate functional zones: a sensor receiving cavity that is sealed off from the air inlet channel, and an air flow path that remains open. This segmentation allows the sensor to be protected from liquid while maintaining air flow detection capability through the separate air inlet channel.
Solution Approach 2:
The patent introduces a sealed structure as an intermediary barrier between the air inlet channel and the sensor receiving cavity. This seal prevents liquid from the air inlet channel from reaching the sensor, while still allowing the sensor to function through the sealed boundary.
2Reliability
If the air inlet channel is sealed to prevent liquid entry, then liquid cannot reach the sensor, but air flow detection may be compromised
Solution Approach 1:
The patent segments the device into distinct functional areas: the air inlet channel remains open for air flow detection, while the sensor receiving cavity is sealed for protection. This allows both air flow detection and sensor protection to coexist through spatial separation.
Solution Approach 2:
A sealed structure acts as an intermediary between the open air inlet channel and the protected sensor cavity, allowing air flow to be detected while preventing liquid from reaching the sensor.
3Productivity
If mist accumulates into liquid over time, then it can block air inlet channels and damage components, but continuous operation is needed for functionality
Solution Approach 1:
The patent extracts the sensor from the potentially harmful environment of the air inlet channel by placing it in a separate sealed receiving cavity. This removes the sensor from direct exposure to accumulated liquid while maintaining continuous air flow detection capability.
Solution Approach 2:
The patent implements preventive sealing around the sensor before liquid accumulation can cause damage. The sealed structure is预先 established to prevent liquid from reaching the sensor, addressing the problem before it occurs during continuous operation.
Data Source
AI summary
An electronic-cigarette rod includes a housing having an insertion opening and a support in the housing. The support includes a receiving cavity for receiving a sensor, an air inlet channel in communication with the receiving cavity, an airflow channel defined by an outer peripheral wall of the support and in air communication with an exterior of the support, and a first opening. The support further includes an end surface facing the insertion opening, the air inlet channel is located on a side of the receiving cavity close to the end surface. A first end of the first opening is in communication with the airflow channel, a second end of the first opening is in communication with the air inlet channel, and the air inlet channel is in air communication with the exterior of the support through the first opening and the airflow channel in that sequence.


