Mask Device With Segmented Suction And Exhaust Fans
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Solution Overview
Problem
Existing mask devices with built-in fans often force a uniform airflow, which can be uncomfortable, especially during varying breathing activities, and may disrupt exhalation due to the fan's placement directly in front of the user.
Innovation Solution
A mask device with separate suction and exhaust fans, along with a breathing quantity sensor, adjusts fan speed based on measured breathing to ensure comfortable airflow and accurate measurement of breathing quantity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fan is used to force air flow through the mask device, then the device structure is simple, but the user's breathing comfort deteriorates during varying breathing activities
Solution Approach 1:
The patent divides the single fan function into two separate fans: a suction fan for inhaling air and an exhaust fan for exhaling air. This segmentation allows independent control of air intake and exhaust, improving breathing comfort during varying activities while maintaining reasonable device complexity through modular design
2Speed
If the fan is disposed in front of the user to force air flow, then the air flow can be directly introduced into the nose and mouth, but the user's breathing comfort deteriorates especially when breathing quantity increases
Solution Approach 1:
The patent segments the air flow path into separate inhalation and exhalation channels with dedicated fans for each direction. The exhaust fan is positioned to handle exhaled air separately, preventing interference with the user's natural breathing process while maintaining adequate air flow speed for comfort
3Ease of operation
If a uniform amount of air is forced through the mask device, then the device operation is simple, but the convenience deteriorates when the user performs various activities with varying breathing quantities
Solution Approach 1:
The patent implements dynamic control by equipping each fan with independent rotation speed control based on sensor feedback. The suction fan and exhaust fan can adjust their speeds independently according to the user's breathing rate and intensity, enabling the device to adapt to various activities from rest to exercise while maintaining simple operation through automatic control
Data Source
AI summary
Provided are a mask device and a method for controlling the same. The mask device includes a mask body configured to cover a nose and mouth of a user, a first air cleaner connected to one side of the mask body, and a second air cleaner connected to the other side of the mask body. Also, the mask device includes a first suction fan module installed in the first air cleaner, a second suction fan module installed in the second air cleaner, and an exhaust fan module disposed in the mask body.