Filter screen and range hood

Abstract

The invention provides a filter screen and a range hood, and relates to the technical field of kitchen appliances. The filter screen comprises a filter base plate, a plurality of long-strip-shaped filter holes are formed in the filter base plate, each filter hole sequentially comprises an expansion section and a contraction section in the length direction of the filter hole, the width of the expansion section is gradually increased in the length direction of the filter hole, and the width of the contraction section is gradually decreased in the length direction of the filter hole. The range hood comprises a shell and the filter screen, the shell is provided with a smoke inlet and a smoke outlet which are communicated with each other, the filter screen covers the smoke inlet, and the airflow direction of lampblack airflow flowing to the filter screen is consistent with the length direction of filter holes in the filter screen. When the filter screen is used for filtering lampblack airflow, lampblack particles are not prone to blocking the filter holes, the filter screen can effectively filter the lampblack airflow for a long time, the user does not need to frequently clean the filter screen, and the use convenience of the filter screen is high; correspondingly, the filter screen can guarantee the air passing rate for a long time, the air performance of the range hood can be correspondingly guaranteed and the use performance of the range hood is high.

Description

technical field [0001] The invention relates to the technical field of kitchen appliances, in particular to a filter screen and a range hood. Background technique [0002] The production process of traditional Chinese food culture includes frying, frying, deep-frying, roasting, etc. During the process of making food, a lot of oil fume is produced, and the oil fume not only seriously pollutes the kitchen environment, but also the kitchen operators stay in the oil fume environment for a long time. The harm is greater, so range hoods are widely used in kitchens. [0003] When the range hood is running, the external oil fume flows through the smoke inlet of the range hood and enters the inside of the shell, after flowing through the shell, it is discharged through the smoke outlet and enters the public flue; Oil pollution caused by components, etc., the existing range hood generally installs a filter screen at the smoke inlet to initially filter the fume particles in the fume f...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a filter screen and a range hood, so as to alleviate the technical problems in the prior art that the filter screen is easy to be blocked by oil and has poor performance.

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