Fan device having self-cleaning function

Abstract

The invention relates to a fan device having a self-cleaning function. The fan device comprises a vane wheel motor, a fan housing, a vane wheel, a seal cover mechanism and ultrasonic transducers, wherein the seal cover mechanism also comprises a cover plate, a seal cover motor, a screw rod, nut pieces and push-pull rods; the screw rod is erected in front of an air inlet; the nut pieces are mountedon the screw rod; one ends of the push-pull rods are hinged to the nut pieces, and the other ends of the push-pull rods are hinged to the outer side surface of the cover plate; the seal cover motor is integrally in transmission connection with one end of the screw rod to drive the screw rod to rotate, so that the purpose that the nut pieces are in axial motion back and forth along the screw rod is realized, the cover plate is blocked at the air inlet in a sealing manner, or the cover plate is away from the air inlet; a sealing ring is also arranged on the inner side surface of the cover plate; the ultrasonic transducers are arranged on the outer wall of the bottom of the fan housing; a water inlet port is also formed in the fan housing; and a draining hole is also formed in the bottom ofthe fan housing. Through adoption of the fan device disclosed by the invention, thorough no-dead cleaning on the vane wheel and the inner wall of the fan housing can be realized, the cleaning capacityis high, and the cleaning effect is good.

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, and oil fume extraction 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 induced draft, etc. However, in the application of fan devices in various fields, there is a serious problem, that is, the impeller of the fan is very easy to stick to dust, grease, etc., and with the prolongation of use time, dust, grease, etc. adhere to the entire impeller and impeller working. The inner cavity wall, which greatly affects the efficiency of the exhaust air 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 problems, in som...

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

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