Volute and range hood

Abstract

The invention discloses a volute and a range hood. The volute comprises an inner cavity, an air inlet and an air outlet, and comprises a volute main body section and a volute outlet section; the volute main body section is provided with a first bottom wall, a first top wall and a first peripheral wall; the air inlet is formed in the first bottom wall; the volute outlet section comprises a second bottom wall, a first end wall and a second end wall; the second bottom wall is a curved surface wall; one end of the curved surface wall is connected with the first bottom wall, and the other end of the curved surface wall extends to the air outlet; the air outlet is positioned between the first end wall and the second end wall; and a flow separation piece is vertically arranged on the inner wall surface of the curved surface wall. The flow separation piece can achieve a flow separation effect in the air outlet, so that eddy currents formed by air currents during turning can be effectively reduced, and the vortex noise can be lowered; and in addition, the flow separation piece can facilitate improvement of the condition of nonuniform pressure distribution of the air currents in the air outlet, so that the air flowing efficiency in the range hood can be improved.

Description

[0001] This application is a divisional application with an application date of December 27, 2016, an application number of 201611227145.0, and an invention title of "range hood". technical field [0002] The invention relates to the field of household appliances, in particular to a volute and a range hood with the volute. Background technique [0003] With the improvement of people's health awareness, kitchen range hoods have gradually become an indispensable electrical appliance for every family. At present, the large air volume and suction power recognized by consumers has become the main selling point of the market, but the range hood itself has the contradiction that the greater the air volume, the greater the noise. Noise in daily life has seriously affected people's lives. As the core of the family, the kitchen should be a relatively quiet environment full of cooking fun, but in fact the biggest noise source in the kitchen is the range hood. There are more and more c...

AI Technical Summary

Problems solved by technology

[0006] According to the range hood of the present invention, the splitter can play a splitting role at the air outlet, so that the large vortex formed after passing through the fan can be cut into two or more small vortexes, thereby reducing the noise of the large vortex. In addition, The splitter also helps to improve the uneven air pressure distribution at the air outlet, which can improve the air flow efficiency at the range hood

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