Lg Electronics Inc.

Seong-Ook Kim

Ill-Shin Kim

Oh-Chul Kwon

Si-Yeon An

Bum-Sik Lee

Dong-Yeol Yoo

Chang-Hwan Seo

Joo-Won Park

Yi-Bum Sik

Dong-Yeoi Yoo

Dong-Yeol 106-905 Dongbu Apartment Yoo

Oh-Chul 702-903 Booyoung E-Green 6-Cha Apt Kwon

Si-Yeon 908-904 Booyoung Apartment An

The present invention relates to a refrigerator having a dispenser. In the present invention, the dispenser is provided in a concave portion of a door to be exposed toward a front surface of the door. A water tank is installed between a rear surface of the dispenser and a door liner defining a rear surface of the door. The water tank stores the water delivered from an external water supply source while the water in maintained at a relatively low temperature and then discharges the water to the outside through the dispenser. Furthermore, in the present invention, a nozzle, through which the water is discharged from the water tank, is directly connected to a drainpipe of the dispenser, so that users may always take out the water maintained at a constant temperature.

Refrigerator having dispenser

A dispenser of a conventional refrigerator supplies only cold water. Therefore, the dispenser cannot meet a variety of users' needs. Further, the conventional refrigerator has a problem in that various kinds of water supplied from a water source cannot be properly purified. The present invention relates to a refrigerator including a main body with a storage space defined therein and a door for opening and closing the storage space. The refrigerator of the present invention comprises a feed tube for guiding water, which is supplied from an external water source to the main body of the refrigerator, to the door; a valve for distributing the water supplied from the feed tube into a plurality of connection tubes; a cooling tank installed within the door for cooling the water supplied through the valve and then storing the cooled water therein; a heater installed within the door for receiving the water supplied through the valve separately from the cooling tank and then heating the received water; and a dispenser for dispensing the hot and cold water supplied from the heater and cooling tank to the outside of the refrigerator through a front surface of the door. The refrigerator further comprises a filter for filtering the water, and the filter is provided at one of the feed tube and connection tubes for supplying the water toward the heater and detachably installed in the storage space defined in the main body of the refrigerator.

The present invention relates to an ice maker for a refrigerator and a method of testing the ice maker, and more particularly, to an ice maker for use in a refrigerator for making and releasing ice and a method of testing the ice maker to determine whether the ice maker is normally operated. The present invention provides a process for checking the operation of the ice maker and checks an operating state of all components needed for the normal operation of the ice maker. Further, in the checking process, it is determined whether initial set values needed for the operation of the ice maker are appropriate, and the initial set values can also be adjusted.

Ice maker for refrigerator and method of testing the same

The present invention relates to a heater controller and a heater control method of a refrigerator, and more particularly, to a heater controller and a heater control method of a refrigerator, which control a heater mounted in a refrigerator dispenser. In the present invention, a dispenser of a refrigerator door is provided with a water tank. In order to prevent water in the water tank from being frozen over, the heater is mounted at an outside of the water tank. In addition, by measuring an outer surface temperature of the water tank and then recognizing a water temperature in the water tank based on the outer surface temperature of the water tank, the heater is controlled to be turned on/off based on a range of the water temperature in the water tank. Furthermore, in the present invention, an ambient temperature at a position of the refrigerator is measured, and then, the heater outputs heat energy according to a range of the ambient temperature. Then, the heat energy of the heater is transmitted to the water tank. As a result, the water temperature in the water tank is properly controlled, so that the water tank is prevented from being frozen over.

Heater controller and heater control method of refrigerator

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Chinju, South Korea

Seong-Ook Kim