Filtering device, method for judging its clogging degree, cleaning method and washing machine

Abstract

The invention relates to the technical filed of washing devices, in particular to a filter device used in a drying air duct of a washing machine, a method for judging the blocking degree of the filterdevice and a cleaning method of the filter device, and further relates to the washing machine comprising the filter device. The filter device comprises a first filter, a first static pressure measurement device and a second static pressure measurement device, wherein the first filter is arranged at an air inlet of a condensation end; the first static pressure measurement device is used for detecting a static pressure value of the air inlet of the condensation end, and the pressure measurement point is located on the air inlet side of the first filter; the second static pressure measurement device is used for detecting a static pressure value of an air outlet of the condensation end. By detecting the static pressure value of the air inlet side of the first filter and the static pressure value of the air outlet of the condensation end, whether the filter device in the drying air duct of the washing and drying integrated machine needs to be cleaned or not is judged, the process and the time for the system to judge whether the filter device needs to be cleaned or not are simplified and shortened respectively, and moreover, the method is more precise. Compared with the method that thesystem automatically cleans the filter device, the quantity of water consumed in the system running process is reduced.

Description

technical field [0001] The present application relates to the technical field of washing equipment, in particular, to a filter device for the drying air duct of a washing machine, a method for judging the clogging degree of the filter device, a cleaning method for the filter device, and a washing machine including the filter device . Background technique [0002] At present, most of the condensing phase change ends of the electric heating, washing and drying integrated drying duct are rear-mounted, and there is no good dander filtering solution for the time being, and some businesses do not use filtering directly. Because the drying system dries clothes for a long time, it will inevitably inhale clothes dander and thread ends, resulting in poor drying effect. In addition, dander, lint, etc. are accumulated and blocked in the entire air duct system, and the long-term cycle of baking will cause peculiar smell in the air duct, which will affect the user's washing and use, and ...

AI Technical Summary

Problems solved by technology

The drying system will inevitably inhale clothes dander and thread ends due to drying clothes for a long time, resulting in poor drying effect

And dander, thread ends, etc. are accumulated and blocked in the entire air duct system, and the long-term cycle baking will cause peculiar smell in the air duct, which will affect the user's washing and use, and even cause unit failure in severe cases.

The cleaning of the drying system mainly depends on the user or after-sales personnel to carry out manual cleaning from time to time, which is time-consuming and laborious

[0003] Patent No. CN201410218989.3 discloses a filter structure for flushing and automatic cleaning, which requires an additional water inlet and an electric cleaning device to increase structural complexity, operating time and cost; patent No. CN201811296515.5 The patent discloses a transposition device for interchanging filter screens, but it is equipped with a complicated driving device and occupies a large space, so it cannot realize the lightweight of the shell; there are also some technical solutions for judging whether the filter screen needs to be cleaned The method is the drying time, but this judgment method is an indirect judgment

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