Spiral case of blower fan in apparatus with inlet air from two sides for sucking oil fume

Abstract

This invention discloses a fan turbine casing inletting wind from two sides including a front cover plate, a back cover plate and a circular middle shell connecting the two, a front air-inlet and a back air-inlet are set on them separately, and the projection of the center of the front one on the plane where the back cover places is coincident with that of the back one characterizing that a curved panel projecting downward is connected between the down edges of the two plates to shield the middle shell, so smoke can be led to the front and back air-inlets smoothly.

Description

A range hood fan volute with double-sided air intake technical field The invention relates to the component structure of the range hood, in particular to the improvement of the fan volute of the range hood with double-side air intake. Background technique The range hood is one of the essential kitchen appliances in the family. At present, European-style range hoods are favored by more and more consumers because of their neat and light appearance and small footprint. European-style range hoods generally include a fume collection hood, a fan body (intake box) located above the fume collection hood and perpendicular to it, a fan volute, an impeller, and a motor for driving the impeller are installed in the fan body, wherein the fan volute includes the front The cover plate, the rear cover plate and the ring-shaped intermediate shell connecting the two. The middle shell is usually perpendicular to the front cover plate and the rear cover plate except for the volute tongue. Th...

AI Technical Summary

Problems solved by technology

The technical problem to be solved by this invention is to develop an improved range hood fan volute with double-sided air intake, so that the oil fume can enter the fan more smoothly, reduce noise, reduce wind resistance and reduce air volume loss

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