Range hood and control method thereof

Abstract

The invention discloses a range hood and a control method thereof. The range hood comprises a fume collecting hood, a draught fan frame arranged above the fume collecting hood and a draught fan system arranged in the draught fan frame, wherein an air inlet is formed in the fume collecting hood; a fume guide plate assembly is arranged below the air inlet, and the fume guide plate assembly comprises a main fume guide plate located in the middle; the range hood is characterized in that a movable filter screen is arranged below the draught fan system in the draught fan frame, and the movable filter screen can rotate around an axis extending front and back so as to face a left channel or a right channel in the draught fan frame; and the fume guide plate assembly further comprises a first auxiliary fume guide plate located at the left side of the main fume guide plate and a second auxiliary fume guide plate located at the right side of the main fume guide plate, and the first auxiliary fume guide plate and the second auxiliary fume guide plate can rotate around the axis extending front and back.

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] Range hoods have become one of the indispensable kitchen appliances in modern families. The range hood uses the principle of fluid dynamics to work, sucks and exhausts the range hood through a centrifugal fan installed inside the range hood, and uses a filter to filter some grease particles. The centrifugal fan includes a volute, an impeller installed in the volute and a motor that drives the impeller to rotate. When the impeller rotates, a negative pressure suction is generated in the center of the fan, and the oil fume under the range hood is sucked into the fan, and after being accelerated by the fan, it is collected by the volute and guided out of the room. [0003] Generally, range hoods include top-suction and side-suction types. Top-suction range hoods use the principle of fume rising...

AI Technical Summary

Problems solved by technology

[0006] 1. When a traditional range hood is used on an ordinary double-cooker, the stir-frying side and the soup side have a large difference in the amount of smoke generated during cooking, so it is impossible to adjust the air volume or the area of ​​​​the air inlet to adapt to the cooking situation;

[0007] 2. Although the air inlet of some range hoods can be adjusted according to the size of the oil fume, it usually requires two sets of drive motors to realize the operation separately, which is costly, poor in stability, and difficult to popularize.

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