Sealing device with self-cleaning function for brushless fan shell

Abstract

The invention relates to the field of brushless fans, in particular to a sealing device with a self-cleaning function for a brushless fan shell. The sealing device comprises a shell, an end cover, fanblades and a mesh enclosure; an outer convex ring I and an outer convex ring II are respectively fixed on the opposite sides of the shell and the end cover, and are fixedly connected through a plurality of bolts I; the ends, close to the outer convex ring I, of the bolts I are fixedly connected with gears I; the shell is connected with an annular plate in a sleeved mode; a plurality of blade plates are fixed to the peripheral wall of the annular plate; a plurality of brush strips are fixed to the side, close to the mesh enclosure, of the annular plate; a centrifugal push-pull mechanism is arranged on the annular plate; and a gear ring is rotatably connected to a fixed shaft on the centrifugal push-pull mechanism; and the gear ring can be connected with the multiple gears I in an engaged mode at the same time. According to the sealing device with the self-cleaning function for the brushless fan shell provided by the invention, automatic cleaning of the mesh enclosure is achieved, the stable air conveying pressure and the efficient air conveying efficiency of a brushless fan are kept, energy consumption is reduced, the sealing performance between the shell and the end cover is guaranteed, and external moisture and dust are prevented from entering the shell.

Description

technical field [0001] The invention relates to the field of brushless fans, in particular to a self-cleaning sealing device for a brushless fan casing. Background technique [0002] When the brushless fan is working, due to the vibration generated by it, the connection between the brushless fan casing and the end cover becomes loose, which leads to a decrease in the resistance between the brushless fan casing and the end cover, which in turn makes the external water liquid and dust enter the interior of the brushless fan, which will corrode and damage the internal parts of the brushless fan and reduce the service life of the brushless fan. Moreover, when the brushless fan is working, the air is transported from the tail end of the brushless fan to the main shaft end through the fan blades. After the airflow passes through the grille, the dust particles in the air will adhere to the outer surface of the grille, causing the grille to be damaged. The outer surface is blocked,...

AI Technical Summary

Problems solved by technology

[0002] When the brushless fan is working, the vibration generated by it makes the connection between the brushless fan casing and the end cover loose, which leads to a decrease in the resistance between the brushless fan casing and the end cover, which in turn makes the external water liquid and dust enter the interior of the brushless fan, and then corrode and damage the internal parts of the brushless fan, reducing the service life of the brushless fan

Moreover, when the brushless fan is working, the air is transported from the end of the brushless fan to the main shaft through the fan blades. After the airflow passes through the net cover, the dust particles in the air will adhere to the outer surface of the net cover, causing the net cover to be damaged. The outer surface is blocked, which leads to a decrease in the air delivery pressure of the brushless fan, thereby reducing the air delivery efficiency and increasing energy consumption. In view of this, we propose a self-cleaning sealing device for the brushless fan casing

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