Automatic cleaning method of range hood

Abstract

The invention relates to an automatic cleaning method of a range hood. The method comprises the following steps of: (1) driving a centrifugal wind wheel to rotate by a stepless speed-change direct-current motor so that lampblack is normally absorbed; and (2) after the lampblack is normally absorbed, delaying for 1-2 minutes and then cleaning at a high speed, wherein the rotation speed of the centrifugal wind wheel is 1.2 times as fast as the rotation speed of normally absorbing the lampblack. The rotation speed of the wind wheel is maximized by using a stepless speed change principle of the direct-current motor so that an air pressure value is 1.2 times greater than a normal air pressure value. Therefore, strong negative-pressure airflow which is formed outside the flue impacts greasy dirt on the peripheral wall in the flue, and the greasy dirt is forced to be discharged from the greasy dirt opening of the flue. By setting a self-cleaning function key, strong-pressure oil discharge is carried out by means of delaying for 1 minute after cooking, therefore, not only can the air quality of a kitchen be purified but also the oil and the dirt can be discharged at the strong pressure.

Description

technical field [0001] The invention relates to the technical field of range hoods, and relates to an automatic cleaning method applied to range hoods. Background technique [0002] With the continuous improvement of living standards, modern people like to pursue a quiet, comfortable and healthy life, and their requirements for range hoods are also increasing. It is hoped that the range hood has a strong sewage discharge capacity, and it is also hoped that the range hood has low noise and is energy-saving and environment-friendly. At present, there are range hoods with large air volume and strong suction on the market, but the automatic cleaning function and maintenance of the hoods are relatively low. It affects the life of the hood and increases the complicated physical labor of consumers. The traditional self-cleaning function sprays water pressure on the wall of the air duct and the wind wheel to achieve the effect of automatic cleaning, but there are obvious defects. F...

AI Technical Summary

Problems solved by technology

It affects the life of the hood and increases the complicated physical labor of consumers. The traditional self-cleaning function sprays water pressure on the wall of the air duct and the wind wheel to achieve the effect of automatic cleaning, but there are obvious defects. First, it needs Add water pumps, water tanks, etc., and the cost is high. Second, water is easy to leak through the surrounding walls of the air duct, causing safety hazards. Third, water injection and pouring are cumbersome, heavy workload, and the mixing of oil and water cannot achieve environmental protection and self-cleaning. It cannot satisfy modern people. Requirements for range hoods