Extractor hood and control method thereof

Abstract

The invention discloses an extractor hood. The extractor hood comprises a exhaust fume collecting hood and a box body arranged above the exhaust fume collecting hood; and the extractor hood is characterized in that air inlets are correspondingly formed at the bottom of the exhaust fume collecting hood and at the part, located at the front side of the exhaust fume collecting hood, of the bottom ofthe box body are correspondingly provided with, and each air inlet is provided with a smoke barrier capable of opening or closing the corresponding air inlet. The invention further discloses a controlmethod of the above extractor hood. Compared with the prior art, the extractor hood has the advantages that through the arrangement of the multiple air inlets, the advantages of the low-suction, side-suction and top-suction extractor hood can be fully utilized, and a good oil fume suction effect is achieved under the cooking states of a small amount of oil fume and large amount of oil fume; and the cooking state of a kitchen is judged through the detection of a temperature sensor and an oil-fume sensor, so that the opening and closing of the smoke barrier at the air inlets are automatically controlled, opening and closing of the corresponding air inlets are realized under different cooking states, negative pressure zones and the effective air volume of each air inlet are guaranteed, andthe oil fume suction effect is enhanced.

Description

technical field [0001] The invention relates to a cooking fume purification device, in particular to a range hood and a control method for the range hood. Background technique [0002] At present, the common range hoods on the market include top suction type, side suction type and submersible type. The advantage is that the appearance is stylish and simple, the air volume is large, it is suitable for a large space, and it can capture the oil fume far from the stove. The disadvantage is that the installation height is far away from the stove. The oil fume is easily disturbed by the ambient air, causing the oil fume to escape to the surroundings, resulting in poor oil fume absorption effect. The power source of the side-suction range hood is closer to the stove, and absorbs most of the oil fume that is closer to the stove in the form of an arc. Its advantage is that the body is thin and the operation is not easy to touch. Due to its low installation height, the negative pres...

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Problems solved by technology

For example, the Chinese patent with the application number 201320250895.5 and the Chinese patent with the application number 201610588598.X both disclose a range hood combined with top and side suction. It will cause the negative pressure area of ​​the suction port at the bottom to decrease, the effective air volume will decrease, and the oil fume absorption effect will become worse.

Another example is the Chinese patent application No. 201320124231.4, which discloses a three-inlet top wall range hood. Under the condition of small oil fume volume and single pot cooking, because the range hood has many air inlets and long inlet channels, a single suction port The negative pressure area is small, the effective air volume is reduced, and the oil fume absorption effect is poor

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