Method, system, and washer-dryer for detecting air duct cleanliness of washer-dryer

Abstract

The invention provides a method and system for detecting the cleanness of an air flue of a dryer and the dryer. The method comprises the steps of obtaining a first preset corresponding relation of operation time and temperature at a fan when the dryer performs heating and drying; obtaining a second current corresponding relation of operation time and temperature at the fan when the dryer performsheating and drying; according to the first corresponding relation and the second corresponding relation, determining the cleanness of the current air flue, and therefore judging the cleanness of the dryer when a user does not need to disassemble the dryer; the user can conveniently perform cleaning according to the dirt degree and flush away soft flocks inside the air flue in time by judging the cleanness of the air flue, the reliability of the dryer is improved, the service life is prolonged, bacterium breeding inside a roller can be effectively restrained through the clean air flue, and secondary contaminations generated in the cloth washing process are avoided.

Description

technical field [0001] The invention relates to the field of washing and drying machines, in particular to a method, a system and a washing and drying machine for detecting the cleanliness of an air duct of the washing and drying machine. Background technique [0002] A washer-dryer is a combination of a washing machine and a clothes dryer that dries clothes after washing, see figure 1 , figure 1 It is an existing washing and drying machine, which generally adopts a closed circulation structure, including a fan 1, an electric heater 2 and a drum 3. The above-mentioned components are connected into one body through an air duct, and the air duct is a circulating air duct, including the front air duct 4 and the rear air duct. Air duct 5, the wind blown by fan 1 becomes high-temperature and low-humidity gas through electric heating 2, passes through drum 3, takes away the moisture on the clothes in drum 3, dehydrates in rear air duct 5 to become low-temperature and low-humidity...

AI Technical Summary

Problems solved by technology

During the long-term use of the washer-dryer, foreign matter will gradually accumulate in the air duct. On the one hand, the drying performance of the washer-dryer will be greatly reduced, and on the other hand, bacteria will easily breed and endanger health.

[0003] The interior of the air duct of the washer-dryer cannot be directly observed, so the user cannot know whether the air duct needs to be cleaned. In the prior art, the cleanliness of the washer-dryer is tested without disassembling the washer-dryer

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