Dust collection box type variable-frequency range hood and exhaust fume discharging method

Abstract

The invention discloses a dust collection box type variable-frequency range hood and an exhaust fume discharging method. The dust collection box type variable-frequency range hood is arranged above a kitchen counter and comprises an outer frame, a fan and a lifting mechanism, wherein an exhaust fume discharging opening is formed in the outer frame and is connected to an air suction port of the fan through a hose; and the outer frame and the hose jointly form a dust collection box type exhaust fume discharging channel. When an exhaust fume discharging function is not needed to be used, a driving motor is started, and a movable rod drives the outer frame to fall to a top frame so as to be bridged over a stove in a matched manner, and the decorative tabletop of the top frame is flush with a fixed tabletop to form a complete working tabletop; and when the exhaust fume discharging function is needed to be used during the use of the stove, the driving motor is started, the movable rod drives the outer frame to rise, and the top frame of the outer frame, the side wall and the hose jointly form the dust collection box type exhaust fume discharging channel, thus forming a negative pressure region with lower pressure than external pressure in the dust collection box, therefore, fume and odor can be effectively prevented from being scattered at a mess, and are discharged to the fan through the hose, and the fan sucks and discharges the fume and odor to a collection drum or directly discharges the fume and odor to the outside.

Description

technical field [0001] The invention relates to a range hood, in particular to a dust box-type frequency conversion range hood and a smoke exhaust method. Background technique [0002] The current kitchen range hood is usually fixedly installed directly above or on the side of the stove. When in use, the oil fumes and odors generated can be sucked by the range hood and discharged to the outside through a dedicated channel, but still There will be some oily fumes and odors that cannot be discharged due to different diffusion angles. One reason is that there is no cover between the range hood and the ignited stove except one side against the wall, especially the open kitchen has no cover on all sides except the top, so the oil fume and smell are not affected. When the range hood is adsorbed and pulled, it will drift around, causing a layer of oil to accumulate on the kitchen wall after long-term use, making it dirty and affecting hygiene. Moreover, the dust and base oil of t...

AI Technical Summary

Problems solved by technology

[0002] The current kitchen range hood is usually fixedly installed directly above or on the side of the stove. When in use, the oil fumes and odors generated can be sucked by the range hood and discharged to the outside through a dedicated channel, but still There will be some oily fumes and odors that cannot be discharged due to different diffusion angles

One reason is that there is no cover between the range hood and the ignited stove except one side against the wall, especially the open kitchen has no cover on all sides except the top, so the oil fume and smell are not affected. When the range hood is adsorbed and pulled, it will float around, causing a layer of oil to accumulate on the kitchen wall after long-term use, making it dirty and affecting hygiene

In addition, the dust and base oil of the traditional range hood are all on the top, on the one hand, it will often drip, on the other hand, it is easy to stick to dust and difficult to clean

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