Filter screen of exhaust hood

Abstract

The invention discloses a filter screen of an exhaust hood. The filter screen is characterized in that the filter screen is in the shape of a hollow frame with an opening in the top face; the bottom of the filter screen is in the shape of a flat plate; the edge of the top face of the filter screen is used for being arranged on the periphery of an air inlet of an exhaust fume collecting hood of the exhaust hood; and multiple holes which are distributed at intervals and extend in the longitudinal direction are formed in all side faces of the filter screen to form air inlet passageways. The filter screen with the flat-plate-shaped bottom is arranged, and therefore the condensation and partial grease separation function is achieved for cooking fume, meanwhile, the grease dripping from cooking fume passageways and impellers of draught fans can be collected, and it is avoided that the grease drips into cookware below; the cooking fume enters the air inlet of the exhaust fume collecting hood from the periphery of upper portion of a bottom plate, and the air inlet amount is ensured; and a sound absorption device is arranged in the filter screen, outward irradiation of noise of the draught fans can be reduced, and the aim of noise reduction is achieved.

Description

technical field [0001] The invention relates to a range hood, in particular to a filter screen of the range hood. Background technique [0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Generally, range hoods include top-suction and side-suction types. Top-suction range hoods are neat, light, and take up less space. It has more and more widespread applications. The top-suction range hood usually includes a fume collection hood, a fan casing positioned on the fume collection hood, and a volute, an impeller and a motor for driving the impeller are installed in the fan casing. [0003] Commonly used top-suction range hoods, such as a range hood disclosed in a Chinese patent with application number 201420094631. There is a fume extraction hole on the fume collection hood, and the front end of the fume collection hood is tilted upward; the air inlet end of the air cabinet communicates with the fume extraction hole, and the air outle...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned range hoods usually use dense meshes to allow the oil fume to flow through, but the area of ​​the air intake is still small, resulting in a sharp drop in the air intake; and the oil fume directly passes through the mesh and enters the air inlet. , the residence time is short, the contact area is small, the separation effect of grease and smoke is not ideal, and the rectification effect on smoke is not obvious

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