Range hood and control method thereof

Abstract

The invention relates to a range hood and a control method thereof. The range hood comprises a housing; the smoke baffle is arranged on the machine shell in a deflection mode and at least has a closed state and an open state; the infrared sensor assembly is arranged on the smoke barrier and is used for acquiring a distance signal between a sensing object blocked in front of the infrared sensor assembly and the sensor assembly; and the controller is electrically connected with the driving mechanism and the infrared sensor assembly, and is used for controlling the driving mechanism to start and continuously act when the sensed object is located in the first set distance range and the staying time t reaches the set time T, and controlling the driving mechanism to stop acting when the sensed object is located outside the first set distance range. According to the range hood, the opening angle of the smoke barrier is manually adjusted according to the distance signal obtained by the infrared sensor assembly, so that the smoke barrier is matched with different cooking states, a good smoke gathering effect is achieved, particularly, the range hood adapts to operation habits of users with different heights, and the users can more conveniently operate the smoke barrier to switch other functions of the range hood.

Description

technical field [0001] The invention relates to the technical field of range hoods, in particular to a range hood and a control method thereof. Background technique [0002] A range hood is a kitchen appliance that purifies the kitchen environment. The European-style range hoods on the market are divided into top-suction range hoods and near-suction range hoods. The top suction type range hood uses the principle of hot air rising to absorb and discharge the naturally rising oil fumes generated during cooking. In addition, it is more and more widely used due to its neatness, lightness and small footprint. However, due to its power source The distance from the stove will reduce the suction effect of the power source, and the oil fume cannot be completely absorbed. The near-suction range hood uses the eddy current wind pressure to keep away, and absorbs most of the oil fume close to the stove in the form of arcs, which can reduce the adverse impact on human health, and the po...

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Problems solved by technology

[0005] However, the embedded hood controlled by the gesture switch in the above patent application still has certain deficiencies. First, the current smoke deflector is basically at a fixed angle of inclination after being deflected and opened, and cannot be well adapted to different cooking styles. In order to ensure the suction and exhaust effect of oil fume, especially, it cannot better match the operating habits of users of different heights. For example, when the opening angle of the smoke guide plate is large, it is not convenient for users with relatively low height to guide the smoke The operation on the board realizes the switching of different functions of the range hood. Therefore, designing a scheme that allows users to "manually" adjust the smoke deflector according to the actual environment and personal needs to adapt to the operating habits of users of different heights has also become necessary

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