Refrigerator with CO detection alarming function

Abstract

The invention relates to a refrigerator with a CO detection alarming function. The refrigerator is provided with a CO detection alarming module, and the CO detection alarming module comprises a gas sensor, an operational amplification circuit, a control circuit, a step-down rectification circuit and an alarming module, wherein the gas sensor is used for acquiring and outputting a CO gas concentration signal which is an electrical signal; the operational amplification circuit is connected with the gas sensor, and is used for amplifying the electrical signal; the control circuit is connected with the operational amplification circuit, and is used for converting the electrical signal output by the operational amplification circuit into a digital signal, comparing the digital signal with an alarming threshold value, and outputting an alarming control signal; the step-down rectification circuit is connected with the control circuit, and is used for performing step-down rectification filtering processing on externally input direct current power, thereby providing direct current power of a corresponding specification for the control circuit; and the alarming module is connected with the control circuit, and gives an alarm according to the alarming control signal output by the control circuit. According to the technical scheme, the popularization degree of equipment for CO gas detection in a house can be greatly improved.

Description

technical field [0001] The invention relates to a refrigerator, in particular to a refrigerator with a CO detection and alarm function. Background technique [0002] Gas poisoning is mainly because the human body inhales excessive CO (carbon monoxide). [0003] The main causes of CO generation in residential buildings usually include: incomplete combustion of natural gas, coal gas, liquefied petroleum gas, fuel oil, and coal; improper installation of water heaters, resulting in backflow of exhaust gas; blockage of chimneys or exhaust pipes; driving engines and lighting fires in confined spaces Heating and so on. [0004] Because people often think that if there is no coal burning in the residence, gas poisoning will not be caused, and the equipment for CO gas detection in the residence is usually an independent CO alarm, that is, the CO alarm is directly connected to 220V AC or DC. Selective installation, therefore, the current prevalence of CO gas detection in residences ...

AI Technical Summary

Problems solved by technology

[0005] However, in view of the harm caused by gas poisoning and the above-mentioned reasons for the generation of CO in the residence, it is still necessary to conduct CO gas detection in the residence, and the popularity of CO gas detection equipment installed in the residence needs to be greatly improved

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