Range hood and wind speed regulating system and method thereof

Abstract

The invention discloses a range hood. The range hood comprises a key for starting manual regulation of the wind speed, a key for starting automatic regulation of the wind speed, a light emitter and a light receiver. The light emitter can emit light towards a lampblack collection cavity of the range hood. The light receiver can receive the light which is emitted by the light emitter and penetrates through the lampblack collection cavity or reflected by lampblack in the lampblack collection cavity. After a wind speed regulating command is emitted by the key for manual regulation of the wind speed, the wind speed of the range hood is regulated by according to the wind speed regulation command. After an automatic wind speed regulating command is emitted by the key for starting automatic regulation of the wind speed, the wind speed of the range hood is regulated according to the information of the light which is received by the light receiver and emitted by the light emitter and penetrates through the lampblack in the lampblack collection cavity or is reflected by the lampblack in the lampblack collection cavity. According to the range hood capable of regulating the wind speed automatically, the wind speed of a draught fan can be regulated automatically, operation is convenient, and energy saving is achieved while contamination caused by kitchen lampblack is fully prevented.

Description

technical field [0001] The invention relates to a range hood and its wind speed control system and method. Background technique [0002] The composition of kitchen fumes is very complex, mainly including water, aldehydes, ketones, alcohols, etc., including volatile nitrosamines, heterocyclic amines and other known mutagenic and carcinogenic substances, as well as tar, carbon monoxide, and carbon dioxide. It is not only harmful to human health, but also pollutes the sanitary environment of the kitchen, so it must be removed in time. [0003] The wind speed of the traditional range hood needs to be adjusted manually, which is not scientific and accurate enough, and the extraction of oil fume does not meet the health requirements, and it is often inconvenient due to forgetting to turn on the switch of the range hood or needing to adjust the range hood during the cooking process. Contents of the invention [0004] The object of the present invention is to provide a range hood...

AI Technical Summary

Problems solved by technology

It is not only harmful to human health, but also pollutes the sanitary environment of the kitchen, so it must be removed in time

[0003] The wind speed of the traditional range hood needs to be adjusted manually, which is not scientific and accurate enough, and the extraction of oil fume does not meet the health requirements, and it is often inconvenient due to forgetting to turn on the range hood switch or needing to adjust the range hood during cooking.

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