Abstract: A refrigerator controls the temperature of an upper space and a lower space. A heat source supplier provides heat in the upper space. A control unit controls the heat source supplier based on the sensed temperature from a temperature sensor to maintain the temperature of the upper space to be higher than the temperature of the lower space, and control a cooling circuit to maintain the temperature of the lower space to be below the temperature of a maximum ice crystal formation zone of water and the temperature of the upper space to be over the temperature of the maximum ice crystal formation zone of water, thus maintaining a supercooled state of a stored liquid in the container as a preset state during a first time period.

Abstract: A refrigerator includes a control apparatus and a storing space composed of an upper space and a lower space between which the air or heat exchange is limited. The storing space has a liquid in a supercooled state. A determination unit calculates an accumulated time during which the temperature of the storing space is maintained in a supercooling temperature range below the maximum ice crystal formation zone of the stored liquid after the sensed temperature enters the supercooling temperature range, compares the accumulated time with a supercooled-state determination time and determines that the stored liquid is in the supercooled state if the accumulated time is equal to or greater than the supercooled-state determination time.

Abstract: A linear compressor which can perform the natural cooling capacity modulation, even if a capacitor connected to a motor is removed. The linear compressor includes a fixed member having a compression space therein, a movable member linearly reciprocated in the fixed member to compress a refrigerant sucked into the compression space, and one or more springs provided to elastically support the movable member in the motion direction of the movable member. The compressor also includes a motor connected to the movable member to linearly reciprocate the movable member in the axial direction, and a motor control unit performing the cooling capacity modulation by the reciprocation of the movable member according to a load, by controlling an AC voltage applied to the motor so that a stroke of the movable member can be proportional to the magnitude of the AC voltage applied to the motor.

Abstract: A linear compressor is provided that provides a greater power by changing a frequency at high load. The linear compressor includes a mechanical device having a fixed member, a movable member linearly reciprocated in the fixed member, one or more springs provided to elastically support the movable member, and a motor connected to the movable member, and an electric controller having a rectifier, an inverter that receives a DC voltage from the rectifier, converts the DC voltage to an AC voltage, and supplies the AC voltage to the motor, a voltage sensor that senses the DC voltage, a current sensor that senses a current, and a controller that calculates a required voltage for the motor, generates a control signal, and applies the control signal to the inverter, if the required voltage is greater than the DC voltage of the voltage sensor.

Abstract: A supercooling system includes a cooling apparatus and a supercooling apparatus. The cooling apparatus includes a storing unit storing an object, a cooling unit, and a main control unit controlling the cooling unit to maintain the temperature in the storing unit at a temperature below the maximum ice crystal formation zone of the liquid. The supercooling apparatus includes an independent storage room having a storing space, a temperature sensing unit sensing the temperature of the independent storage room, a temperature control unit mounted in the independent storage room and controlling the internal temperature and a sub-control unit controlling the temperature control unit based on the sensed temperature from the temperature sensing unit to store the liquid in a supercooled state.

Abstract: The present invention relates to a supercooling method and a supercooling apparatus which can maintain an object in a supercooled state. According to the present invention, a supercooling method includes a first cooling step of cooling a stored object toward a cooling temperature below a phase transition temperature thereof, a step of judging whether the stored object is released from a supercooled state in the first cooling step, a step of thawing the stored object when the stored object is released from the supercooled state, and a second cooling step of cooling the stored object toward a cooling temperature below zero that is higher than the lowest temperature of the stored object before the release of the supercooled state, wherein the first cooling step is continuously performed when the object is maintained in the supercooled state.

Abstract: The present invention discloses an apparatus for supercooling which can stably maintain a liquid in a supercooled state at below a phase transition temperature. The apparatus for supercooling, which can maintain a supercooled state of a liquid or contents even below a phase transition temperature, comprises: a storage space for storing a container accommodating a liquid or contents containing the liquid; a cooling means for cooling the liquid or contents or the storage space below the phase transition temperature of the liquid or the contents; and a temperature maintaining unit for applying energy to the surface of the liquid or contents or to a gas near the surface, wherein the liquid or the contents are maintained in a supercooled state by preventing freezing nuclei from being formed on the surface of the liquid or contents or in the gas near the surface by application of energy.

Abstract: The present invention relates to a supercooling recognition method and a supercooling apparatus which can rapidly and precisely judge whether a stored object is maintained in a supercooled state on the basis of a temperature thereof. A supercooling recognition method according to the present invention includes the steps of: cooling a stored object to below a temperature of a maximum ice crystal formation zone thereof; and judging whether the stored object is maintained in a supercooled state on the basis of a temperature thereof during the cooling step.

Abstract: The present invention relates to a linear compressor which can perform the natural cooling capacity modulation, even if a capacitor connected to a motor is removed. The linear compressor includes a fixed member having a compression space therein, a movable member linearly reciprocated in the fixed member to compress a refrigerant sucked into the compression space, one or more springs provided to elastically support the movable member in the motion direction of the movable member, a motor connected to the movable member to linearly reciprocate the movable member in the axial direction, and a motor control unit performing the cooling capacity modulation by the reciprocation of the movable member according to a load, by controlling an AC voltage applied to the motor so that a stroke of the movable member can be proportional to the magnitude of the AC voltage applied to the motor.

Abstract: The present invention relates to a linear compressor which can provide greater power by changing a frequency at a high load.

Abstract: The present invention relates to a remote monitoring system and a method controlling the same, which can selectively monitor according to a condition of power and a control of devices including a washer and a dryer installed in a remote place. The remote monitoring system comprises a communication module provided in each device for transmitting monitoring information after identifying an operation condition of each device according to a user's demand; and a remote monitoring unit for selecting a device to be monitored based on a result after identifying a power condition of each device, as well as displaying an operation condition of each device based on the transmitted monitoring information and the control of each device.

Abstract: The present invention relates to a refrigerator which can maintain a stored object in a desired state by controlling the temperature of an upper region and a lower region in the same storing space. The refrigerator includes a non-freezing apparatus having a storage room with a storing space composed of an upper space and a lower space, the air or heat exchange being limited between the upper space and the lower space, and a temperature control unit controlling the temperature of the upper space and the lower space. The non-freezing apparatus is installed in a storing space in which the cooling is performed and controls the temperature control unit to perform at least one of a process of rapid cooling at a temperature over the phase transition temperature, a process of entering a supercooling temperature region, and a process of maintaining the supercooling temperature region.

Abstract: The present invention relates to a refrigerator which can display a supercooled state or the proceeding degree of the supercooled state. The refrigerator includes a control apparatus which is formed in a storing space in which the cooling is performed, has a storing space composed of an upper space and a lower space between which the air or heat exchange is limited, stores a stored object in the storing space in a supercooled state, and controls the temperature of the upper space and the lower space, respectively. The refrigerator includes: a determination means determining the supercooled state of the stored object or the proceeding degree of the supercooled state; and a display means visually or aurally displaying the supercooled state or the proceeding degree of the supercooled state determined by the determination means.

Abstract: The present invention relates to a refrigerator which can maintain and store a stored object in various states. The refrigerator includes a non-freezing apparatus having a storage room with a storing space composed of an upper space and a lower space, the air or heat exchange being limited between the upper space and the lower space, and a temperature control unit controlling the temperature of the upper space and the lower space. The non-freezing apparatus is installed in a storing space in which the cooling is performed and controls the temperature control unit to perform at least one of a process of maintaining a temperature-control start temperature region and a process of maintaining a supercooling temperature region which is lower than the temperature-control start temperature region, thus storing the storing space or the stored object in a state caused by the performed process.

Abstract: The present invention relates to a supercooling system which can independently supercool a liquid object contained in a storing container.

Abstract: The present invention relates to a non-freezing storage unit which can store food at a temperature below 0° C. without freezing the food, and a refrigerator including the same. The non-freezing storage unit includes an outer casing with one open surface, a drawer which can be pulled out and detached through the open surface of the outer casing, a sensor located on one surface of the outer casing and sensing a temperature of food located in the drawer, a thermal conductive member installed on one surface of the drawer facing the sensor and transferring the temperature of the food in the drawer to the sensor, and a heater installed in the outer casing. The non-freezing storage unit is located in a cooling space to store food in a non-frozen state at a temperature below 0° C.

Abstract: The present invention relates to a supercooling recognition method and a supercooling apparatus which can rapidly and precisely judge whether a stored object is maintained in a supercooled state on the basis of a temperature thereof. A supercooling recognition method according to the present invention includes the steps of: cooling a stored object to below a temperature of a maximum ice crystal formation zone thereof; and judging whether the stored object is maintained in a supercooled state on the basis of a temperature thereof during the cooling step.

Abstract: The present invention relates to a supercooling apparatus which maintains an object and liquid in a supercooled state. According to the present invention, a supercooling apparatus includes a cooling chamber supplied with cool air, and a heating device (100) for preventing freezing of water by heating air over a container (200) storing an object or liquid and cooled in the cooling chamber. In this configuration, the air over the container (200) where ice crystals are easily formed is heated to prevent freezing of water stored in the container (200) and store water in a supercooled state.

Abstract: The present invention discloses a remote controlling system and method for an electric device, including: one or more electric devices (200, 300) for communicating with a remote controlling device (100) through a wireless communication network, transmitting state information to the remote controlling device (100) according to a state request command from the remote controlling device (100), and controlling operations according to an operation control command from the remote controlling device (100); and the remote controlling device (100) for transmitting the state request command to the electric device (200, 300) selected by the user, and receiving and displaying the state information, or transmitting the operation control command to the electric device (200, 300). The remote controlling system and method for the electric device (200, 300) displays the states of the electric devices (200, 300) and controls the operations thereof.

Abstract: The present invention discloses an apparatus for supercooling which can stably maintain a liquid in a supercooled state at below a phase transition temperature. The apparatus for supercooling, which can maintain a supercooled state of a liquid or contents even below a phase transition temperature, comprises: a storage space for storing a container accommodating a liquid or contents containing the liquid; a cooling means for cooling the liquid or contents or the storage space below the phase transition temperature of the liquid or the contents; and a temperature maintaining unit for applying energy to the surface of the liquid or contents or to a gas near the surface, wherein the liquid or the contents are maintained in a supercooled state by preventing freezing nuclei from being formed on the surface of the liquid or contents or in the gas near the surface by application of energy.