Air quality detector and air quality detecting device

Abstract

The invention discloses an air quality detector, comprising an outer shell and a rear cover, wherein the rear cover is installed at the rear of the outer shell in a detachable way, and a telescopic detection unit is arranged at the upper part in the outer shell; the telescopic detection unit comprises a gantry type fixed frame, a round bar, a first motor, a first L-shaped mounting plate, a secondL-shaped mounting plate, a total volatile organic compound (TVOC) sensor and a formaldehyde sensor; a protective unit, positioned under the telescopic detection unit, is also arranged in the outer shell; the protective unit comprises four blocking strips which separately have a shape like a Chinese character 'FANG', two baffle plates, a connecting plate, a threaded rod, a second motor, a fixed plate and a supporting plate. When the air quality detector is used for detecting air quality, the first motor drives the TVOC sensor and the formaldehyde sensor to extend out of the outer shell so as toenable the sensors to be in full contact with the air outside the detector, so that the adverse effect, caused by increment of air flow velocity, on the test data of the sensors can be effectively avoided, and the data detected by using the detector is accordingly truer and more accurate.

Description

technical field [0001] The invention relates to the technical field of air quality detection, more specifically, it relates to an air quality detector and an air quality detection device. Background technique [0002] With the development of economy and the improvement of living taste, more and more people begin to pay attention to health and environmental protection. After the new home is decorated, in addition to the basic ventilation and placement of formaldehyde plants, charcoal bags and other measures, many people will also use air quality detectors to comprehensively detect the air quality conditions, and comprehensively protect the health of pregnant women, children, the elderly and family members . Among them, the toxic substances in the newly renovated rooms are mainly formaldehyde gas and volatile organic compounds. Volatile organic compounds include hydrocarbons, halogenated hydrocarbons, oxygen hydrocarbons and nitrogen hydrocarbons, benzene series, organic chlo...

AI Technical Summary

Problems solved by technology

[0003] Existing air quality detectors, in order to improve the accuracy of air quality detection, generally use a fan to suck the air outside the detector into the inside of the housing for detection by the sensor. However, the disadvantage of this method is that the fan sucks the air outside the detector. During the process of air inhalation into the shell, it has a certain acceleration effect on the air. However, the increase of the air flow velocity has a negative impact on the detection data of the sensor, which leads to the distortion of the detection data of the sensor. Therefore, a more realistic air quality detection data is proposed. Accurate air quality detector and air quality detection device

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