Control System of Disposable Air Filtration Ventilator

Abstract

The invention relates to the field of disposable ventilator equipment, in particular to a control system for a disposable air filter ventilator, comprising an air guiding module, a speed measuring module, an air pressure sensing module, a control module and a power supply module, the air guiding module is used to send The breathing mask of the disposable air ventilator introduces air, the speed measurement module is used to measure the speed value when the air guide module introduces air, the air pressure sensing module is used to continuously detect the air pressure value at the breathing place after the air guide module introduces air, and the control module obtains Air pressure value and rotation speed value, the control module controls the rotation speed of the air guide module to increase or decrease according to the air pressure value and rotation speed value, and the power supply module supplies power to the air guide module, speed measurement module, air pressure sensing module and control module. The invention changes the rotation speed value of the air guide module according to the air pressure value, so that the user can breathe air continuously, and reduces the user's discomfort in the process of using the ventilator.

Description

technical field [0001] The invention relates to the field of disposable ventilator equipment, in particular to a control system of a disposable air filter ventilator. Background technique [0002] The progress of social industrialization and urbanization has made smog more common, as well as the occurrence of social emergency infectious diseases. At this time, it is necessary to take protective measures on the face. The facial protective measures are mainly carried out by wearing masks, etc., through which the particles above PM2.5 At present, the best mask product for isolation is the N95 mask. [0003] The N95 mask can isolate smaller particles, and its filtration efficiency for particles with an aerodynamic diameter of 0.075 μm ± 0.02 μm reaches more than 95%. The aerodynamic diameter of air bacteria and fungal spores varies between 0.7-10 μm, which is A variety of airborne bacteria and fungal spores are also within the protection range of the N95 mask, and the N95 mask ...

AI Technical Summary

Problems solved by technology

[0003] The N95 mask can isolate smaller particles, and its filtration efficiency for particles with an aerodynamic diameter of 0.075 μm ± 0.02 μm reaches more than 95%. The aerodynamic diameter of air bacteria and fungal spores varies between 0.7-10 μm, which is A variety of airborne bacteria and fungal spores are also within the protection range of the N95 mask, and the N95 mask fits more closely with the face, and it is not easy to leak air from the periphery. It causes difficulty in breathing and even dizziness due to lack of oxygen, especially for the elderly and children who are weaker. Therefore, a face protection device that can protect the user's face and breathe smoothly has emerged as the times require.

[0004] Existing face protection devices include breathing masks and air-filtering ventilators. The ventilator introduces air through the fan and then transmits it to the breathing mask after being filtered by the filter medium for the user to breathe. The air guide volume of the fan inside the ventilator is distinguished by using buttons. Due to the protection requirements of the user at work, for example, the face protection device and the protective clothing need to be used continuously for a long period of time before it can be removed. However, when the user is in different working conditions, the air The inhaled volume will be different. For example, the inhaled volume will be larger when walking. If the air is pumped in at a constant power, it will easily cause less fresh air in the breathing mask, causing discomfort to the user, and some devices need to be used repeatedly due to lack of supply. The protective effect decreases when the device is used repeatedly, increasing the risk of protection

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