Cleaning method of volute, fan, range hood and volute of range hood

Abstract

The invention relates to a cleaning method for a volute of a range hood, a blower fan, a range hood and the volute, wherein the volute includes a casing, and the casing includes two cover plates spaced apart from each other and connected to the two covers. On the ring wall between the plates, at least one of the cover plates is provided with an air inlet, and the two cover plates and the ring wall together form an air outlet at the top of the housing; the inner peripheral wall of the ring wall is provided with at least two along the Grooves arranged at intervals in the axial direction of the casing, each of which extends circumferentially along the ring wall; a cleaning element is provided in the casing, and the cleaning element includes a number of connected grooves that are consistent with the number of grooves and can slide along the grooves. scraper. The cleaning part of the present invention directly cleans the inner wall of the casing, avoiding the accumulation of oil stains on the inner wall of the casing after long-term use and affecting the performance of the fan; and this application does not need additional oil filtering or oil absorbing parts, involving few parts and simple structure.

Description

technical field [0001] The invention belongs to the technical field of range hoods, and in particular relates to a volute of a range hood, a blower fan, a range hood and a method for cleaning the volute. Background technique [0002] Kitchen ventilation conditions and the removal of oily fume and exhaust gas produced during cooking have always been one of the troubles in every home. Now range hoods have become an indispensable household appliance in the kitchen. The air volume and wind pressure are the measure An important indicator of the quality of the range hood, the biggest influence on the air volume and wind pressure of the range hood is the fan volute assembly, which is the core component of the range hood. After the range hood is used for a long time, a large amount of oil will adhere to the volute, which is difficult to clean, and it will affect the cleaning ability of the range hood for a long time. [0003] For the problem of oil pollution in the volute, there ar...

AI Technical Summary

Problems solved by technology

[0005] This patent does not directly clean the casing (that is, the casing below), but sets a fixed cylinder and a roller so that the oil fume is adsorbed on the outer surface of the roller, and then the oil is scraped off by the oil scraper, although there is a roller , but it does not guarantee that the oil will only adhere to the drum and not the inner wall of the casing. After long-term use, the accumulation of oil on the inner wall of the casing will still affect the performance of the fan; Rollers, etc., also cause many parts involved and complex structure

[0006] Another example is the patent No. CN201710842373.7 (published number is CN 109519989 A) Chinese invention patent application disclosed "A Fan and Range Hood Using the Fan", there is also the problem of the above-mentioned patent, the cleaning brush is not directly Clean the shell (that is, the shell below), but clean the oil filter screen additionally arranged at the air inlet, which does not guarantee that no oil will accumulate on the inner wall of the shell

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