a range hood

Abstract

The invention discloses a range hood, comprising a range hood body, an oil fume trajectory guiding device is arranged under the rear side of the range hood body, and the oil fume trajectory guiding device comprises a casing; a pipe is arranged in the casing, and the An air duct extending left and right is formed in the duct, a first air inlet is opened on the front side of the duct, and the air duct is in fluid communication with the first air inlet; the front side of the casing is provided with a second air inlet, so The positions of the first air inlet and the second air inlet correspond to each other; the fan is arranged in the casing, the pipes are arranged horizontally, and extend from the side where the fan is arranged in the casing to the opposite side of the casing; the fan includes The third air inlet and air outlet, the third air inlet of the fan is in fluid communication with the outside of the casing, and one end of the duct is in fluid communication with the air outlet of the fan, so that the fan can blow air into the air duct of the duct and blow the air in the duct. The negative pressure is generated on the front side to guide the oil smoke rising from the front side to the rear side as a whole.

Description

technical field [0001] The invention relates to a cooking fume purifying device, in particular to a 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. At present, common range hoods on the market include top suction and side suction. [0003] The top-suction range hood adopts the principle of oil fume rising, and creates a ...

AI Technical Summary

Problems solved by technology

Generally, the oil fume in the cooking pot will go through the process of rising upward and bursting after it is generated. If there is no smoke collecting hood or smoke screen (smoke baffle) in a large area above to collect the smoke, a large amount of oil fume will escape, resulting in Poor smoke effect

[0006] It can be seen from the above that the existence of the existing range hood makes the body of the range hood smaller and the effect of collecting smoke cannot be taken into account at the same time.

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