Abstract: A household electric appliance in which a door key is operated in association with an opening/closing operation of a door and is drawn into an inside of the door in the door opening operation is provided. The household electric appliance includes a main body having a space therein, a door coupled to the main body to be rotatable about a first rotation axis to open and close, respectively, the space, and a door key coupled to one of the main body and the door, the door key rotatable about a second rotation axis, so that a rotation of the door about the first rotation axis causes the door key to rotate about the second rotation axis.

Abstract: Disclosed herein is a refrigerator capable of producing carbonated water and a control method thereof. The refrigerator includes a carbonated water tank to store carbonated water a carbon dioxide gas supply valve to open/close a carbon dioxide gas flow path to guide carbon dioxide gas from a carbon dioxide gas cylinder to the carbonated water tank, and a carbonated water tank pressure sensor to detect an internal pressure of the carbonated water tank.

Abstract: A refrigerator includes a water tank which stores water, a carbon dioxide cylinder which stores carbon dioxide, a dispenser module which accommodates an external container and supplies the carbon dioxide and the water to the external container, and a controller which supplies the water to the external container and supplies the carbon dioxide to the external container when supplying the water is completed.

Abstract: A wheel for a robot cleaner includes an outer ring in contact with a surface to be cleaned, an inner ring which is disposed inside the outer ring and receives a driving force, a plurality of spokes which connect the outer ring and the inner ring, and form a plurality of independent spaces through which air passes, and a plurality of ribs disposed in the plurality of independent spaces, each of the plurality of ribs having a shorter length than a length of each of the plurality of spokes.

Abstract: Disclosed herein is a dishwasher including a spray unit fixed to one sidewall of a wash tub and a reflecting plate assembly to reflect wash water sprayed from the spray unit onto dishes and to linearly reciprocate in a spray direction of the wash water sprayed from the spray unit. The dishwasher further includes a drive unit to drive the reflecting plate assembly, and a cam unit to transmit driving force of the drive unit to the reflecting plate assembly. The drive unit includes a motor to generate rotational force, and a belt forming a closed loop and caused to make cyclic movement by the motor. The cam unit is engaged with the belt to transmit power of the belt to the reflecting plate assembly. The cam is alternately engaged with first and second portions of the belt to cause the reflecting plate assembly to reciprocate.

Abstract: An oven that has an improved structure so that the convenience of use and the energy efficiency may be improved includes a casing that has a front panel, a cooking chamber that is provided inside the casing, a door that is rotatably disposed in the casing so as to open and close the cooking chamber, and has a frame, and an individual door that is rotatably provided in the frame so as to open and close an opening provided in the frame.

Abstract: A dishwasher including a washing chamber to wash dishes, a sump concavely formed at a lower portion of the washing chamber to collect water used in washing, a microfilter disposed at the sump to filter out dirt produced when the dishes are washed, and an ultrasonic generator to radiate ultrasonic waves toward the microfilter. Since the microfilter is automatically cleaned by the ultrasonic generator, a user may not need to manually clean the microfilter.

Abstract: Disclosed herein is a dishwasher including a spray unit fixed to one sidewall of a wash tub and a reflecting plate assembly to reflect wash water sprayed from the spray unit onto dishes and to linearly reciprocate in a spray direction of the wash water sprayed from the spray unit. The dishwasher further includes a drive unit to drive the reflecting plate assembly, and a cam unit to transmit driving force of the drive unit to the reflecting plate assembly. The drive unit includes a motor to generate rotational force, and a belt forming a closed loop and caused to make cyclic movement by the motor. The cam unit is engaged with the belt to transmit power of the belt to the reflecting plate assembly. The cam is alternately engaged with first and second portions of the belt to cause the reflecting plate assembly to reciprocate.

Abstract: Disclosed herein is a refrigerator that has an improved structure to facilitate assembling of a door and a main body which are separable from each other. The refrigerator includes a main body that forms an exterior appearance, a storage compartment that is provided inside the main body, a door that is rotatably coupled to the main body so as to open and close an open front surface of the storage compartment, and a hinge bracket that connects the main body and the door. Here, the hinge bracket includes a first bracket that is coupled to the main body and a second bracket that is coupled to the door and detachably coupled to the first bracket.

Abstract: A storage container includes an inflow hole and an outflow hole through which cold air flows, and deodorizing filters for removing odorous materials are mounted in the inflow hole and the outflow hole. Therefore, when foods containing odor-causing materials are put in the storage container to be stored in a storage compartment, the odor-causing materials are prevented from spreading inside the storage compartment, thereby fundamentally removing odors from the storage compartment. In addition, the cold air of the storage compartment continuously flows in and out of the storage container through the inflow hole and the outflow hole, and therefore foods stored in the storage container may be kept fresh.

Abstract: A cooking appliance including a body includes a cooking compartment and an electrical component compartment formed therein, a door link-coupled with the body to open and/or close the cooking compartment, a door moving unit including a link member which connects the door with the body to allow the door to pivot upward and downward in front of the cooking compartment, and a cover unit which prevents the electrical component compartment in the body from being exposed by a movement of the link member. Here, the body includes a link moving portion formed on a front side to allow the link member to move into or out of the body, and the cover unit is configured to shield the link moving portion when the door is opened.

Abstract: A washing operation and a drying operation are performed while a basket which is located inside a washing tub and accommodates dishes reciprocates in a vertical direction of a washing tub due to a driving device. The basket reciprocates in order to pass through an injection nozzle which injects washing water and an air nozzle which injects air to perform the washing operation while passing through the injection nozzle and to perform the drying operation while passing through the air nozzle. Through this, a small amount of dishes may be washed and dried in a short time and the dishes may be washed using a small amount of water and energy.

Abstract: Disclosed herein are a nozzle assembly for a dishwasher capable of evenly spraying wash water in a wash tub and a dishwasher having the same. The dishwasher includes a sump to pump wash water, a supply pipe to which the wash water from the sump is supplied, and a nozzle assembly connected to the supply pipe. The nozzle assembly includes a lower rotor arm connected to the supply pipe, an upper rotor arm having a portion rotatably received in the lower rotor arm and having a first rotation center of an upper end thereof and a second rotation center of a lower end thereof positioned eccentrically from the first rotation center, and a nozzle rotatably connected to the upper rotor arm.

Abstract: A refrigerator includes a door including a rotation part protruding outward from a side surface of the door, and a protection member configured to face a side surface part of the door and having at least some parts disposed between the rotation part and the main body when the door is closed, such that a user's finger is prevented from being caught between the main body and the door during rotation of the door. No magnet is installed in the gasket, a separate magnet member is provided while spaced apart from the gasket, thereby reducing the thickness of the gasket, improving the energy efficiency of the refrigerator. A seating member for seating a hot pipe thereon is provided in a partition wall of the refrigerator, thereby minimizing cool air of a storage chamber leaking to the outside.

Abstract: Disclosed herein are a refrigerator and a control method of the same. The refrigerator includes a purified water pump which increases a pressure of water, a carbon dioxide regulator which decreases a pressure of carbon dioxide, a mixing pipe which mixes water which introduced from the purified water pump and carbon dioxide which introduced from the carbon dioxide regulator, and produces carbonated water, a user interface which receives a production condition of carbonated water from a user, and a controller which controls the purified water pump and the carbon dioxide regulator such that the pressure of the water and the pressure of the carbon dioxide reach a target pressure corresponding to the input production condition.

Abstract: Disclosed herein is a refrigerator including a body, a storage compartment formed in the body, a door which opens and closes the storage compartment, a damper that mitigates an impact, which occurs when the door is closed, and includes a cylinder, a piston that moves back and forth in the cylinder, and a pressurizing rod that transfers a pressure applied from the door to the piston, and a hinge that rotatably supports the door and includes a hinge bracket which connects the body to the door and a guide rail that guides a movement of the pressurizing rod.

Abstract: A filter cleaning device has an improved structure which is capable of effectively cleaning dust in a filter used in an air conditioner. The filter cleaning device includes: a filter; a brush unit movably installed at one side of the filter to separate dust from the filter; a brush movement unit configured so that the brush unit is movable along the filter; and brush guides installed at two sides of the brush unit to guide a movement of the brush unit. Each of the brush guides includes: a first guide groove formed so that the brush unit is moved to be in contact with the filter; and a second guide groove formed so that the brush unit is moved to be separated from the filter.

Abstract: Disclosed herein is a refrigerator capable of opening a first door with a small force using an auxiliary opening apparatus that decreases an opening force for opening the first door. A refrigerator includes a main body, a first door rotatably provided in the front of the main body and including an opening, a second door rotatably provided in front of the first door and configured to open or close the opening, a first handle coupled to a front surface of the first door and configured to open or close the first door, an auxiliary opening apparatus configured to separate the first door from the main body and decrease an opening force of the first door, a handle lever that is provided at the first handle and configured to operate the auxiliary opening apparatus, and a door cap coupled to an upper portion of the first door.

Abstract: A refrigerator having a carbonated water production device, according to one concept of the present invention, comprises: a pressure regulator for adjusting and emitting the pressure of carbon dioxide emitted from a carbon dioxide cylinder; a solenoid switch valve for controlling the supply of the carbon dioxide discharged from the pressure regulator to a carbonated water tank; a connection channel for connecting the pressure regulator and the solenoid switch valve; and a relief valve arranged in the connection channel so as to discharge the carbon dioxide of the connection channel to the atmosphere if the pressure of the carbon dioxide of the connection channel is greater than a predetermined pressure limit. Thus, the pressure of the carbon dioxide of the connection channel is capable of being maintained at a predetermined pressure limit or less, and solenoid malfunction can be prevented so as to improve reliability and stability of a system.

Abstract: A refrigerator is equipped with an improved middle hinge module, by which a door is hinged to a main body, capable of preventing noise when the door is opened and closed and easily adjusting a height of the door. The middle hinge module includes a hinge member fixed to a main body, a casing rotatably coupled to the hinge member and configured to rotate with a door, a shaft accommodated in the casing and coupled to the hinge member, a cam member disposed on the shaft and configured to convert rotational movement of the door into vertical linear movement, a compression spring disposed on the cam member and configured to be compressed by vertical linear movement of the cam member, and a height adjustment screw, an upper portion of which is coupled to a lower portion of the shaft to adjust a height of the door.