A fan device with self-cleaning function

Abstract

The invention relates to a fan device with a self-cleaning function, which includes an impeller motor, a fan casing, an impeller, a capping mechanism, and an ultrasonic transducer. The capping mechanism further includes a cover plate, a capping motor, a screw, Nut piece, push-pull rod, the screw rod is erected in front of the air inlet, and the nut piece is installed on the screw rod; one end of the push-pull rod is hinged on the nut piece, and the other end of the push-pull rod is hinged on the outer surface of the cover plate; the capping motor and One end of the screw is connected together by transmission to drive the screw to rotate, to realize the axial movement of the nut back and forth along the screw, so that the cover is sealed and blocked on the air inlet, or the cover is separated from the air inlet; the inner surface of the cover A sealing ring is also provided; the ultrasonic transducer is arranged on the bottom outer wall of the fan casing; a water inlet port is also arranged on the fan casing, and a drain hole is also arranged at the bottom of the fan casing. The invention can realize the thorough cleaning of the inner wall of the impeller and the fan casing without dead angle, and has strong cleaning ability and good cleaning effect.

Description

technical field [0001] The invention relates to a fan or the field related to a fan mechanism, in particular to a fan device. Background technique [0002] Fan devices are widely used in cooling, ventilation, extraction of oil fume in household appliances, ventilation, dust removal, cooling and air conditioning in factories, mines, tunnels, cooling towers, vehicles, aircraft, ships and buildings, boilers and industrial furnaces Kiln ventilation and draft, etc. However, in the application of fan devices in various fields, they all face a serious problem, that is, the impeller of the fan is very easy to stick to dust, grease, etc., and as the use time prolongs, the dust, grease, etc. will stick to the entire impeller and the working surface of the impeller. The wall of the inner cavity greatly affects the efficiency of the exhaust flow of the fan, increases the power consumption of the motor, and shortens the service life of the motor. [0003] In order to solve these proble...

AI Technical Summary

Problems solved by technology

Although this cleaning method can clean the impeller to a certain extent, reduce the erosion of the impeller by grease and dust, and improve the pumping and exhaust flow efficiency of the impeller, it also has relatively large deficiencies, mainly reflected in these Aspects: (1) It is necessary to design a nozzle head with a complex structure to reach the inside of the impeller, so as to clean the inside of the impeller without affecting the rotation space of the impeller, which is difficult to process and assemble; (2) The nozzle head The cleaning and coverage of the impeller cannot achieve 100% absolute coverage, such as the corners of the impeller, the inner and outer end faces, so that the cleaning of the impeller can only be partially cleaned, and it cannot be fully cleaned; when the impeller is used for a long time, the same There are problems of low extraction and exhaust flow efficiency and increased energy consumption of the motor

It can only achieve a slightly better effect than the fan without cleaning function, and cannot achieve a more ideal working state

(3) The spray head only cleans the impeller, ignoring the cleaning of the inner wall of the volute that accommodates the impeller; because in practice, the inner wall of the fan volute has a lot of grease and dust; and the inner wall of the volute Too much grease and dust in the air will greatly affect the airflow efficiency, which in turn will increase the power consumption of the motor and reduce the exhaust capacity of the fan.

However, in the technical solution disclosed in CN106311669A, because the water at the bottom of the volute can only soak into the bottom edge of the wind wheel, even if the wind wheel rotates slowly while cleaning, it can only clean the part of the wind wheel. It is impossible to completely clean the inner wall of the wind wheel and the volute; moreover, it uses the method of rotating the wind wheel at a slow speed while cleaning, so that the number and frequency of the wind wheel being impacted by ultrasonic bubbles are greatly reduced

Therefore, the technical scheme of CN106311669A is very unsatisfactory in terms of cleaning effect, and is unsatisfactory

Images