Washing machine

Abstract

The invention provides a washing machine comprising a filtering assembly configured to filter water pumped out of a washing drum of the washing machine to recycle the water into the washing drum for reuse, and an air pump configured to air wash the filtering assembly via air flows. An air inlet is formed in the bottom of the filtering assembly to receive air flows, so the filtering assembly can be air washed; and the air pump is arranged on the peripheral wall of a washing machine housing adjacent to the filtering assembly. Distribution positions and / or installation methods of the filtering assembly and the air pump are specially designed, so inside space of the washing machine can be fully utilized; the filtering assembly can be firmly and reliably installed and pressure of air flows pumped by the air pump is even, so the distance between an air inlet of the air pump and the air inlet of the filtering assembly can be shortened and air flow pressure loss can be reduced; and the filtering assembly can be well cleaned to restore primary performance state.

Description

technical field [0001] The invention relates to a washing machine, in particular to a washing machine with a circulating water filtering system. Background technique [0002] The working process of conventional washing machines usually includes water intake, washing-spin-drying-drainage, multiple rinsing-spin-drying-drainage, etc., wherein each rinse needs to consume a large amount of clean water. Generally speaking, the water consumption of the entire working process of the existing pulsator washing machine can reach 20-30 liters per kilogram of clothing, while the water consumption of the entire working process of the existing drum washing machine can also reach 12 liters of water per kilogram of clothing. That is to say, when the existing conventional washing machine (no matter the pulsator type washing machine or the drum type washing machine, and no matter whether it is a semi-automatic washing machine or a fully automatic washing machine) works, the laundry waste water...

AI Technical Summary

Problems solved by technology

However, because the rinsing water has many impurities and the water quality is unstable, the solution 1 cannot really solve the water quality problem of the rinsing water

Moreover, this solution usually requires manual cleaning of the water storage tank and filter screen, which is inconvenient for maintenance

[0009] Option 2 uses a reverse osmosis filter to purify laundry wastewater, which not only requires the use of a high-pressure pump, but also has a slow purification rate, and the water output is difficult to meet the normal use requirements of the washing machine

In addition, this solution requires regular replacement of the reverse osmosis filter, which is costly

[0010] Option 3 uses large-scale water treatment devices and auxiliary equipment such as ozone generators to purify laundry wastewater. These auxiliary equipment are not only expensive in themselves, occupy a large space, but also require many supporting devices and related cleaning devices, further greatly increasing equipment costs and maintenance. cost, totally unsuitable for ordinary household use

[0011] In addition, in prior art washing machines that have a circulating water filtration system, such as the washing machines according to the aforementioned schemes 1 and 2, they do not have the automatic cleaning function of the filter assembly, resulting in troublesome cleaning of the filter assembly or frequent replacement of the filter assembly.

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