Range hood and control method thereof

Abstract

The invention discloses a range hood. The range hood comprises an exhaust fume collecting hood, a fan frame which is arranged above the exhaust fume collecting hood and a fan system which is arranged in the fan frame, an air inlet is formed in the exhaust fume collecting hood, a smoke guiding plate is arranged below the air inlet, the range hood further comprises a movement mechanism used for driving the smoke guiding plate to ascend and descend, the movement mechanism comprises a lifting mechanism and a transmission rod driven by the lifting mechanism to ascend and descend, the lifting mechanism comprises a four-connecting-rod mechanism, the four-connecting-rod mechanism comprises a vertical edge doing lifting motion, the vertical edge is connected to and fixed to the transmission rod, and the transmission rod is connected to and fixed to the smoke guiding plate and can drive the smoke guiding plate to ascend and descend. The invention further discloses a control method of the range hood. Compared with the prior art, the range hood has the advantages that the four-connecting-rod mechanism is arranged, the vertical edge with a linear motion trail is formed after rotating connection, so that guide rail guiding is not needed, through a structure of a pure rotating connection pair, the range hood is free from harsh environment influences such as lampblack, the service life is long, and the precision is high.

Description

Technical field [0001] The present invention relates to a hood purification apparatus, in particular a suction hood, and a control method of the smoke hood. Background technique [0002] Swebed hood has become an indispensable kitchen home appliance equipment in modern families. The suction hood is to operate using fluid kinetic principles, and the cigarette fans are filtered through the centrifugal fan inside the suction hood, and some grease particles are filtered. The centrifugal fan includes a volute, an electric machine mounted in a volute of the impeller and a rotating impeller. When the impeller rotates, a negative pressure suction is generated in the center of the fan, and the fans below the suction hood are sucked into the fan. After the fan accelerates, it is collected by the volute, and the guide is discharged. [0003] Usually the oil-proof hood includes a top-absorbent and side suction, the top-absorbing oil hood uses the prototype of the cigarette, which produces a ...

AI Technical Summary

Problems solved by technology

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

[0007] 2. There are some range hoods with lifting smoke deflectors, although the overall air inlet can be adjusted up and down according to the size of the oil fume, but it mainly adopts a lifting structure similar to an electric push rod + guide rail. If it is exposed to the oil circuit environment, because the guide rail and push rod The accumulation of oil will lead to the loss of grease, or the accumulation of dirt will cause jamming, which will easily lead to failure; and some products with electric push rods or guide rails external to the outside of the fan frame, the external mechanism will cause the product volume to increase, which will affect The shape is beautiful or it cannot be wrapped in the cabinet

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