A chemistry dispensing assembly for a laundry appliance includes a reservoir that dispenses a laundry chemistry to a treatment chamber. A mixing channel is positioned below the reservoir that receives the laundry chemistry dispensed from the reservoir. A fluid assembly delivers a fluid carrier through a flow path that includes the mixing channel. The mixing channel is defined between an underside of the reservoir and an upper surface of the mixing channel.

A laundry treating appliance includes a chassis defining an interior. A rotatable treating chamber is located within the interior and has an access opening. A cover is movably mounted to the chassis for selective movement between opened and closed positions to open and close the access opening. The laundry treating appliance further comprises a spray arm assembly having a spray head.

Disclosed is a washing system capable of detecting a level of contamination of a laundry tub by executing a big data, an artificial intelligence (AI) algorithm and/or a machine learning algorithm in a 5G environment connected for things Internet. The washing system capable of detecting a level of contamination of a laundry tub according to one embodiment of the present disclosure includes a composite sensor for detecting a level of contamination of a laundry tub, a washing machine controller that receives a digital signal from the composite sensor to determine a level of contamination of the laundry tub, and a server communicating with the washing machine. The washing machine controller or the server learns AI model with the training data set through a machine learning algorithm in order to predict a progressing degree of contamination of the laundry tub.

A laundry treating apparatus includes a cabinet with first and second cabinet doors. A first washing apparatus processes laundry that is placed through the first cabinet door at the front. A second washing apparatus processes laundry that is placed through the second cabinet door at the top. The second washing apparatus includes: a tub that holds water and has an opening at a top that is accessible through the second opening of the cabinet; a tub cover that covers the top of the tub and defines an inlet through which the tub is accessible; a tub door on the tub cover that opens or closes the inlet of the tub cover separately from the second cabinet door opening or closing the second opening; a drum inside the tub configured to rotate about a vertical shaft; and a first sensor that generates a signal based on the tub door being open.

A laundry treating apparatus is disclosed. The laundry treating apparatus comprises a tub provided to hold wash water; a drum rotatably provided in the tub and comprising a shaft which is perpendicular with the ground; a sub-drum detachably mounted to an inner circumferential surface of the drum and configured to wash laundry, independent from the drum; a tub cover provided in an upper surface of the tub and comprising a laundry introduction opening formed therein; a sensing object unit provided in the sub-drum; and a sensor unit provided in the tub cover and configured to sense the sensing object unit.

A laundry treating apparatus is disclosed. The laundry treating apparatus comprises a tub provided to hold wash water; a drum rotatably provided in the tub and comprising a shaft which is perpendicular with the ground; a sub-drum detachably mounted to an inner circumferential surface of the drum and configured to wash laundry, independent from the drum; a tub cover provided in an upper surface of the tub and comprising a laundry introduction opening formed therein; a sensing object unit provided in the sub-drum; and a sensor unit provided in the tub cover and configured to sense the sensing object unit.

Disclosed is an operating method of a washing machine, the operating method comprising operating a drum accommodating a laundry in a first mode of rotating the drum clockwise or counterclockwise at least once, operating the drum in a second mode of rotating the drum at a speed which is higher than a rotation speed in the first mode, and operating the drum in a third mode of accelerating the drum, maintaining a rotation speed of the drum, and decelerating the drum.

Disclosed is an operating method of a washing machine, the operating method comprising operating a drum accommodating a laundry in a first mode of rotating the drum clockwise or counterclockwise at least once, operating the drum in a second mode of rotating the drum at a speed which is higher than a rotation speed in the first mode, and operating the drum in a third mode of accelerating the drum, maintaining a rotation speed of the drum, and decelerating the drum.

A washing machine comprises a first housing having a first laundry loading port, a first tub disposed in the first housing, a second housing having a second laundry loading port formed at a top portion and disposed on the first housing, a second tub disposed in the second housing, a water supply device connected to an external water source to supply wash water to the first tub and the second tub and installed at the second housing. The water supply device comprises a water supply connector having a plurality of chambers, a first water supply hose connecting the water supply connector with the first tub, a second water supply hose connecting the water supply connector with the second tub, and a backflow prevention structure formed in one of the plurality of the chambers to operate by a pressure of wash water supplied to the plurality of chambers.

A washing machine comprises a first housing having a first laundry loading port, a first tub disposed in the first housing, a second housing having a second laundry loading port formed at a top portion and disposed on the first housing, a second tub disposed in the second housing, a water supply device connected to an external water source to supply wash water to the first tub and the second tub and installed at the second housing. The water supply device comprises a water supply connector having a plurality of chambers, a first water supply hose connecting the water supply connector with the first tub, a second water supply hose connecting the water supply connector with the second tub, and a backflow prevention structure formed in one of the plurality of the chambers to operate by a pressure of wash water supplied to the plurality of chambers.