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Range hood with heat imaging device

An imaging device and technology of range hoods, applied in the field of range hoods, can solve the problems of limiting the intelligent development of range hoods and the inability to automatically identify the concentration of harmful substances

Pending Publication Date: 2019-04-19
FOSHAN VIOMI ELECTRICAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The range hoods in the prior art cannot automatically identify the concentration of harmful substances in the cooking fume in the current cooking environment through temperature, which greatly limits the intelligent development of the range hood

Method used

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  • Range hood with heat imaging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A range hood with a thermal imaging device, such as Figures 1 to 5 As shown, there is a hood main body 1, a thermal imaging device 2 for detecting the heat of the cooking area and obtaining a temperature value, and a harmful substance detection device for detecting the concentration of harmful substances, and the thermal imaging device 2 is electrically connected to the harmful substance detection device , the thermal imaging device 2 and the harmful substance detection device are electrically connected to the cigarette machine main body 1 .

[0046] The thermal imaging device 2 senses the temperature in the cooking area to obtain a temperature signal and transmits the obtained temperature signal as a temperature output signal to the harmful substance detection device. The harmful substance detection device receives the temperature output signal of the thermal imaging device 2, and the harmful substance detection device detects The concentration of harmful substances i...

Embodiment 2

[0120] A range hood with a thermal imaging device, other features are the same as in Embodiment 1, the difference is: the calculation formula of the control device is formula (III),

[0121] C 多环芳烃 =0.05κ+0.01λ+0.0005C+25C VOC +6*10 -5 κλC+475.1

[0122] C=C PM10 +C PM2.5

[0123] ... Formula (III).

[0124] where C 多环芳烃 is the total concentration of PAH gas in the cooking area, κ is the output data of the thermal imaging device 2, λ is the output data of the visual detection device, C is the output data of the particulate matter sensing component, C PM10 is the output data of the PM10 sensor, C PM2.5 is the output data of the PM2.5 sensor, C VOC It is the output data of the VOC sensor.

[0125] When κ∈(0℃, 200℃), C∈(0μg / m 3 , 3000μg / m 3 ), λ∈(0, 300), C VOC ∈(0mg / m 3 , 5mg / m 3 ), C (2-3) =70%C 多环芳烃 , C （4) = 20%C 多环芳烃 , C (5-6) = 10%C 多环芳烃 .

[0126] When κ∈(200℃, 240℃), C∈(3000μg / m 3 , 5000μg / m 3 ), λ∈(300, 500), C VOC ∈(5mg / m 3 , 10mg / m 3 ), C (2...

Embodiment 3

[0131] A range hood with a thermal imaging device, other features are the same as Embodiment 3 or Embodiment 2, the difference is: the control device of the present invention can perform health level according to the concentration of particulate matter, the concentration of volatile organic compounds and the concentration of polycyclic aromatic hydrocarbons Divided controls.

[0132] In this embodiment, the health grades are classified according to the GBT18883-2 indoor air quality standard, and the present invention can also be classified according to other quality standards, such as GB3059-2012, WTO "Environmental Quality Standards". The present invention can also be divided according to other preset environmental quality values. details as follows

[0133] 1. In this embodiment, the polycyclic aromatic hydrocarbons are divided into the environmental grades of polycyclic aromatic hydrocarbons by dividing the concentration of polycyclic aromatic hydrocarbons with the average...

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Abstract

The invention provides a range hood with a heat imaging device. The range hood comprises a range hood main body, a heat imaging device used for detecting heat in a cooking area and obtaining a temperature value and a harmful substance detecting device used for detecting the concentration of harmful substances, wherein the heat imaging device is electrically connected with the harmful substance detecting device; the heat imaging device and the harmful substance detecting device are electrically connected with the range hood main body; a detection range of the heat imaging device covers cookwareused for cooking. The range hood is capable of detecting the temperature, the concentration of particulate matters, the concentration of volatile organic compounds and the concentration of polycyclicaromatic hydrocarbons and also capable of classifying the current environments according to health grades; meanwhile, the range hood is also provided with an air speed control module, a prompt moduleand a fire power control module; the range hood is capable of automatically adjusting air speed and the fire power of the external cookware according to the health grades of the current environments,reducing the concentrations of the harmful substances in the current environments and simultaneously reminding the users to pay attention to protection.

Description

technical field [0001] The invention relates to the field of range hoods, in particular to a range hood with a thermal imaging device. Background technique [0002] In modern life, many families produce a lot of cooking fume. Studies have shown that cooking fume has complex components, has certain inhalation toxicity, immunotoxicity and mutagenicity, and has certain hazards to human health. There are many harmful substances in the fume gas, such as polycyclic aromatic hydrocarbons and various particulate matter. Among them, quite a few polycyclic aromatic hydrocarbons are carcinogenic, such as benzo[α]pyrene, and particulate matter has varying degrees of impact on the human respiratory system. The range hood in the prior art cannot automatically identify the concentration of harmful substances in the range hood in the current cooking environment through temperature, which greatly limits the intelligent development of the range hood. [0003] Therefore, aiming at the defic...

Claims

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Application Information

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IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 陈小平司徒伟贤林勇进
Owner FOSHAN VIOMI ELECTRICAL TECH
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