Lg Electronics Inc.

Samsung Electro-mechanics Co., Ltd.

Hyung Man Park

Min Jae Jeong

Jeongkon Kim

Youngsoo Kim

Seungyoun Kim

Jeong In Kim

Deok Won Kang

Sang Hyun Park

Won Tae Choi

Doo Hyun Kim

Boo Dong Kwak

Kijoong Kang

In Woo Baek

Yeon Cheol Lee

Kang Ju Kim

A dishwasher includes a tub, a door coupled to a front of the tub, and a drying device disposed at the door and configured to dry an inside of the tub. The drying device includes a bracket that defines a space configured to receive the wet air and the dry air, an impeller coupled to the bracket and configured to cause the wet air and the dry air to be mixed, where the impeller is configured to generate a flow of the mixed air. The drying device further includes a cover coupled to the bracket, and an air guide disposed between the bracket and the cover and configured to guide the flow of the mixed air into the impeller. The impeller is rotatably coupled to the air guide.

Dishwasher

A dishwasher includes a tub that defines a washing space configured to accommodate objects to be washed, a door coupled to a front of the tub, and a drying device disposed at the door and configured to guide (i) wet air discharged from the inside of the tub and (ii) ambient air introduced from an outside of the tub. The drying device includes a bracket that defines a space configured to receive the wet air and the ambient air, where the bracket defines a first inlet that is in fluid communication with the outside and configured to receive the ambient air from the outside. The drying device further includes a cover coupled to the bracket and an impeller coupled to the bracket and configured to cause the wet air and the ambient air to be mixed, where the impeller is configured to generate a flow of the mixed air.

A method controls a dishwasher including a tub configured to receive objects to be washed, a drying device configured to receive wet air from the tub and to discharge the wet air to an outside of the dishwasher, and a dry air supplier including a heating part and being configured to supply heated air to the tub. The method includes preheating the drying device by introducing dry air from the outside to the drying device before a first preset time from a start point of a drying operation, performing the drying operation at the start point, wherein the wet air is discharged from the tub during the drying operation, and cooling the dry air supplier by stopping operation of the heating part before a second preset time from an end time point of the drying operation.

Control method of dishwasher

A dishwasher includes a tub, a door, and a drying device disposed outside the tub. The drying device includes a condensing duct that faces an outer surface of the tub, that is in fluid communication with an inlet port defined at the tub, and that extends in a vertical direction and a first direction intersecting the vertical direction, and a fan configured to cause a flow of air in the condensing duct. The condensing duct includes an upstream portion in fluid communication with the inlet port, a downstream portion that is in fluid communication with the upstream portion and includes a bent portion disposed below the upstream portion, and a rib that is disposed inside the bent portion and extends across the bent portion, where the rib protrudes in a second direction that intersects the vertical direction and the first direction.

A dishwasher includes a tub, a door, and a drying device configured to supply air to a washing space in the tub. The drying device includes a condensing duct disposed outside the tub, a cold air supply module that is disposed outside the tub and defines a heat exchange flow path part adjoining the condensing duct, and a fan configured to cause air flow in the condensing duct. The condensing duct includes an upstream portion communicating with the inlet port and extending above the inlet port and then downward, and a heat exchange portion connected to the upstream portion and extending downward to the heat exchange flow path part. A height of an upper end of the heat exchange flow path part is equal to or larger than a height of a lower end of the inlet port.

Dishwasher having condensing duct and heat exchange portion

A dishwasher includes a tub, a door, and a drying device configured to supply air to a washing space in the tub. The drying device includes a drying duct that is disposed outside the tub and includes a condensing duct and a return duct, a fan configured to cause a flow of air in the drying duct, and a heater configured to heat the air in the drying duct. The condensing duct includes a first condensing duct connected to an inlet port configured to receive moist air from the washing space, and a second condensing duct disposed vertically below a bottom portion of the tub and connected to the first condensing duct. The return duct includes a return upstream end connected to the second condensing duct and a return downstream end connected to an outlet port configured to supply air to the tub.

Dishwasher having condensing duct and return duct

A digital white balance device is simply implemented in a digital processing scheme by employing a grey world algorithm. In the device, a timing controller receives vertical and horizontal synchronization signals of an input image and produces a timing control signal. An RGB multiplier multiplies input RGB image data by RGB gains received from an RGB gain controller. A first YCbCr averaging unit converts input RGB image data to YCbCr image data, and obtains first YCbCr averages of this YCbCr image data. A second YCbCr averaging unit converts output RGB image data to YCbCr image data, and obtains second YCbCr averages of this YCbCr image data. According to the timing control signal, the RGB gain controller compares the second YCbCr averages with predetermined target YCbCr averages, respectively, and obtains RGB gains based on the first YCbCr averages, according to the compared result, and provides them to the RGB multiplier.

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Seoul, South Korea

Hyung Man Park