Lg Electronics Inc.

Hyoungkeun Lim

Minkyu Oh

Heayoun Sul

Hoyoun Lee

JungHun Lee

Seokjun Yun

Jeehoon Choi

Jangseok Lee

Myungjin Chung

Sangbong Lee

Seokhyun Kim

Namsoo Cho

Seongmin Song

Donghoon Lee

Sung Jhee

Yoomin Park

Myeongha Yi

Kyongbae Park

Hosan Kim

Yonghun Suh

Hyokeun Park

Youngsu Jeong

Younggyu An

A refrigerator includes a refrigerating compartment, a freezing compartment partitioned from the refrigerating compartment, a freezing unit mounted at one side of an inside of the freezing compartment, and the freezing unit including a cooling case defining a cooling compartment partitioned from the freezing compartment and a cooling drawer insertable into the cooling compartment. A guide duct is mounted on a ceiling of the cooling case and communicates with a grille, and the guide duct includes a bottom portion having a plurality of cold air discharge holes, where at least a portion of the bottom portion is spaced apart from the top portion at a lower side of the top portion to define a passage for guiding the cold air into the cooling compartment.

Refrigerator including a deep freezing unit

A method for controlling a refrigerator according to an embodiment of the present invention is characterized in that, when the temperature of a freezing chamber is in a satisfactory temperature range, and a deep-freezing chamber mode is turned on such that a deep-freezing chamber cooling operation is being performed, the refrigerator is controlled to perform a cold air sagging prevention operation in which a fan of the freezing chamber repeatedly starts and stops at regular intervals.

Method for controlling refrigerator

A refrigerator includes a refrigerator chamber; a freezer chamber partitioned from the refrigerator chamber; a deep-freezing chamber accommodated inside the freezer chamber and partitioned from the freezer chamber; and a freezer evaporator chamber formed on the rear side of the deep-freezing chamber. The refrigerator may include a partition wall including a grill fan, which partitions the freezer evaporator chamber and the freezer chamber, and a shroud which is connected to the back surface of the grill fan and forms a flow path for supplying cold air of the freezer evaporator chamber to the freezer chamber.

Refrigerator

A method for controlling a refrigerator according to an embodiment of the present invention comprises: if an ultra-low temperature compartment mode is turned on, performing control such that one of low voltage, middle voltage, high voltage, and reverse voltage is applied to the thermoelectric module according to the operation mode of the refrigerator; and if the temperature of the ultra-low temperature compartment is determined to be in a satisfactory temperature range, applying low voltage to the thermoelectric module by the control unit.

A method for controlling a refrigerator includes a step in which it is determined whether a period of defrosting (POD) for defrosting a freezing compartment and a deep-freezing compartment has elapsed; a step in which, when it is determined that the period of defrosting has elapsed, a deep cooling operation for cooling at least one from among the temperature of the deep-freezing compartment and the temperature of the freezing compartment to be lower than a control temperature is performed; and a step in which, when the deep cooling operation finishes, a defrosting operation for defrosting the freezing compartment and the deep-freezing compartment is performed.

A method for controlling a refrigerator according to an embodiment of the present invention comprises the steps of: determining whether or not an ultra-low temperature compartment mode is turned on; determining whether or not an ultra-low temperature compartment load-responsive operation input condition is satisfied; and determining whether or not a freezer compartment load-responsive operation input condition is satisfied, wherein if the ultra-low temperature compartment mode is turned on, and the ultra-low temperature compartment load-responsive operation input condition and the freezer compartment load-responsive operation input condition are both satisfied, a corresponding ultra-low temperature compartment load-responsive operation is preferentially performed.

In a refrigerator control method, an operation corresponding to a deep-freezing chamber load, in which both a refrigeration chamber valve and a freezer chamber valve are opened, is performed when a deep-freezing chamber mode is turned on and the input condition of the operation corresponding to a deep-freezing chamber load is satisfied.

Refrigerator control method

A method for controlling a refrigerator according to an embodiment of the present invention is characterized by comprising: a step for determining whether a deep-freezing chamber mode is ON; and a step for determining whether a deep-freezing chamber load response operation input condition is satisfied, wherein when a cold chamber is determined to be operating at the time the deep-freezing chamber load response operation input condition is satisfied, the cold chamber operation is terminated and a deep-freezing chamber load response operation is performed.

In a refrigerator control method according to an embodiment of the present invention, an operation corresponding to a freezer chamber load is performed when a heat load penetrates the inside of the freezer chamber, and the internal temperature of a deep-freezing chamber is differently set and controlled according to the on/off state of a deep-freezing chamber mode, and thus the input condition of the operation corresponding to the freezer chamber load can be differently set according to the on/off state of the deep-freezing chamber mode.

A refrigerator include: an inner case having a storage chamber; a thermoelectric module including a thermoelectric element and a cooling sink; a fan configured to circulate air, to the storage chamber; a fan cover configured to cover the fan and having an upper discharge hole, a lower discharge hole, and an inner suction hole formed between the upper discharge hole and the lower discharge hole; a first receiving member disposed in the storage chamber; and a second receiving member disposed over the first receiving member to be spaced apart from the first receiving member. At least a portion of each of the inner suction hole and the lower discharge hole faces a portion between the first receiving member and the second receiving member, and at least a portion of the upper discharge hole faces a portion between a top surface of the storage chamber and the second receiving member.

A method for controlling a refrigerator including: determining whether a defrosting period for a freezing chamber and a deep freezing chamber has elapsed; when it is determined that the defrosting period has elapsed, performing a deep cooling operation for bringing at least one among the temperature of the deep freezing chamber and temperature of the freezing chamber down to a temperature lower than a control temperature; and defrosting the deep freezing chamber when the deep cooling operation is terminated. When the defrosting of the deep freezing chamber is started, a freezing chamber valve is closed to block cold air flow. The defrosting of the deep freezing chamber includes cold sink defrosting and heat sink defrosting performed after the cold sink defrosting is completed, and while the heat sink defrosting is being performed, a deep freezing chamber fan is driven to remove vapor generated during the cold sink defrosting.

Refrigerator and deep freezing compartment defrost operation

In a refrigerator control method according to an embodiment of the present invention, a control unit intermittently turns on a temperature sensor on a predetermined cycle when a deep-freezing chamber mode is turned off, so that the temperature sensor senses the internal temperature of a deep-freezing chamber for a first set time, and the sensed internal temperature of the deep-freezing chamber is transmitted to the control unit so as to minimize power consumption.

A refrigerator according to an embodiment of the present invention comprises an inlet port and an outlet port which are formed in a sink body forming a heat sink, so as to guide coolant inflow and coolant outflow respectively, wherein the center line of the inlet port passes through the center of a thermoelectric element attached to the heat sink.

A refrigerator include: an inner case having a storage chamber; a thermoelectric module including a thermoelectric element and a cooling sink; a fan configured to circulate air to the storage chamber; a fan cover configured to cover the fan and having an upper discharge hole, a lower discharge hole, and an inner suction hole formed between the upper discharge hole and the lower discharge hole; a first receiving member disposed in the storage chamber; and a second receiving member disposed over the first receiving member to be spaced apart from the first receiving member. At least a portion of each of the inner suction hole and the lower discharge hole faces a portion between the first receiving member and the second receiving member, and at least a portion of the upper discharge hole faces a portion between a top surface of the storage chamber and the second receiving member.

Growing community of inventors

Seoul, South Korea

Hyoungkeun Lim