Range hood

Abstract

The invention discloses a range hood which comprises a box body structure and a fan frame used for arranging a fan system, wherein the box body structure is arranged below the fan frame, the box body structure comprises a lower box body, and a first air inlet and a second air inlet which are arranged in a left-right spaced mode are formed in the lower box body; a first cavity and a second cavity which are independent and serve as air inlet cavities are formed in the lower box body; the range hood further comprises a first filter screen and a second filter screen which extend longitudinally, the first filter screen corresponds to the first cavity, and the second filter screen corresponds to the second cavity. The range hood further comprises a first movable cover connected with the first filter screen and a second movable cover connected with the second filter screen, the first movable cover can ascend and descend relative to the first filter screen at the joint of the first movable cover and the first filter screen, and therefore, the area of a ventilation area, below the joint of the first filter screen and the first movable cover, of the first filter screen is adjusted. The second movable cover can lift relative to the second filter screen at the joint of the second movable cover and the second filter screen, so that the area of the ventilation area below the joint of the second filter screen and the second movable cover is adjusted.

Description

technical field [0001] The invention relates to a cooking fume purifying device, in particular to a range hood. Background technique [0002] Chinese cooking will produce a lot of oil fumes. In order to keep the kitchen environment clean and the human body healthy, range hoods have become one of the indispensable kitchen appliances in modern families. Generally, range hoods include top-suction and side-suction types, and top-suction range hoods are more and more widely used because of their neatness, lightness, small footprint, good matching with wall cabinets, and low noise. [0003] The top suction range hood usually includes a smoke collection hood and a fan frame located on the smoke collection hood. A volute, an impeller and a motor for driving the impeller are installed in the fan frame. The negative pressure area is directly connected. This type of range hood has the problem of fast wind speed and strong negative pressure at the air inlet of the fume collecting hood...

AI Technical Summary

Problems solved by technology

However, the increase in impeller speed will lead to a significant increase in noise, affecting people's health, and the actual cooking stir-fry occurs on one side, and the air volume on both sides is increased at the same time, resulting in waste of energy consumption on the other side

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