Gas detection sensor

Abstract

The invention discloses a gas detection sensor which comprises a main body shell. The main body shell is arranged to be two cylindrical hollow shells. A control main board is fixedly installed in the middle of the interior of the main body shell, and a first sensor, a second sensor, a third sensor, a fourth sensor and a fifth sensor are electrically connected to the control main board. The five groups of sensors are respectively a PM2.5 sensor, a carbon monoxide sensor, a sulfur dioxide sensor, a nitrogen dioxide sensor and an ozone sensor. According to the invention, through the design of multiple groups of sensors, an air inlet cover, the control main board and other structures, the gas detection sensor can detect air and is convenient to install. Through the design of structures such as a rainwater sensor, an electric push rod and an annular rain cover, shielding protection of the air inlet cover is realized, so that rainwater is prevented from entering the gas detection sensor to damage the sensor.

Description

technical field [0001] The invention belongs to the technical field of gas detection sensors, in particular to gas detection sensors. Background technique [0002] A gas sensor is a converter that converts a certain gas volume fraction into a corresponding electrical signal. The probe adjusts the gas sample through the gas sensor, usually including filtering out impurities and interfering gases, drying or cooling the display part of the instrument; the gas sensor is a method that converts information such as the composition and concentration of the gas into information that can be read by personnel, instruments, meters, etc. Devices that use information such as computers, gas sensors are generally classified as chemical sensors. Gas sensors include: semiconductor gas sensors, electrochemical gas sensors, catalytic combustion gas sensors, thermal conductivity gas sensors, infrared gas sensors, solid electrolyte gas sensors, etc. [0003] Gas sensors are a major category of ...

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Problems solved by technology

[0004] However, the detection function of the gas sensor in the prior art is relatively simple, and often only the content of a single gas in the air can be detected, so the detection effect of the gas is not comprehensive enough, and the accuracy of the air detection data cannot be reflected; in addition, if the gas sensor If it is installed outdoors, the ventilation hole on the air detector will often have the possibility of water ingress in rainy weather. If there is too much water ingress, it will cause damage to the sensor and cause losses. For this reason, we propose a gas detection sensor to solve the existing problems in the prior art. The problem

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