Cabinet-type self-cleaning draught fan

Abstract

The invention discloses a cabinet-type self-cleaning draught fan comprising a cabinet body; an air inlet and an air outlet are formed in the cabinet body; a draught fan assembly comprising an impeller and a motor for driving the impeller to rotate is arranged in the cabinet body; the impeller comprises a wheel disc and blades; each of two ends of each blade is provided with an end ring; each blade is provided with a sliding sleeve for wiping the surface of the blade to be clean; the cabinet body is provided with a driving mechanism which is inserted to an inner ring of the end ring, is connected with each sliding sleeve and is used for driving the sliding sleeve to make reciprocating motion along the length direction of each blade; and a disconnecting part for disconnecting the driving mechanism and each sliding sleeve when the impeller rotates is arranged between the driving mechanism and the sliding sleeve. The technical scheme has the key points that due to the arrangement of the sliding sleeves, dust on the surfaces of the blades is cleaned because the driving mechanism drives the sliding sleeves to slide back and forth on the blades when the blades are required to be cleaned, and the condition that a great number of dust and bacteria on the blades are carried in the air passing through the blades because excessive dust exists on the blades is effectively avoided.

Description

technical field [0001] The invention relates to a cabinet type fan, in particular to a cabinet type self-cleaning fan. Background technique [0002] The cabinet centrifugal fan is used to convert the axial incoming airflow into a circumferential airflow, and the cabinet centrifugal fan impeller is an important part of the cabinet centrifugal fan. With the continuous improvement of aerodynamics, the development of impellers of various fans is adopting more novel designs to obtain higher efficiency, lower noise, and higher acoustic quality. [0003] Chinese Patent Publication No. CN101392760A discloses a multi-blade centrifugal wind wheel, which includes an impeller core disc, a tire mounted in the impeller core disc, and blades mounted in the tire; core plate, and then the motor drives the impeller core plate to rotate, and then the impeller core plate drives the blades to rotate. During the working process of the blades, a large amount of dust is easy to adhere to the blade...

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent Publication No. CN101392760A discloses a multi-blade centrifugal wind wheel, which includes an impeller core disk, a tire mounted in the impeller core disk, and blades installed in the tire; core plate, and then the motor drives the impeller core plate to rotate, and then the impeller core plate drives the blades to rotate. During the working process of the blades, a large amount of dust is easy to adhere to the blades, so that there are more bacteria in the wind passing through the blades, which seriously damages the User's health

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