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:
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:
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 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 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 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.