Abstract: A refrigerator with an ice dispenser includes a spiral type time delay unit for controlling the opening and closing of an ice duct. A duct cap opens and closes an ice duct formed in the refrigerator. A rotating shaft of the time delay unit is operably connected to the duct cap. Foldaway catching members on a rotating shaft intersect with a threaded cylindrical body. The catching members fold back to allow a quick opening of the ice duct. The catching members then interact with the threaded cylindrical body as the ice duct closes to delay the closing process.

Abstract: A refrigerator and duct cap assembly therefor having a damper that delays closing of a duct cap is disclosed herein. The refrigerator and duct cap assembly therefor include a duct cap, an opening and closing device, a connecting rod, a packing holder, a packing, and a cylinder. The duct cap opens and closes an ice duct of the refrigerator, and the opening and closing device opens and closes the duct cap. The connecting rod is connected to one of the duct cap and the opening and closing device. The packing holder is connected to the connecting rod. The packing is disposed in the packing holder. The cylinder may include at least one slot formed at a predetermined portion of a periphery of the cylinder and the packing makes a reciprocating motion within the cylinder while generating a frictional force.

Abstract: A refrigerator includes: a refrigerator body having a cooling chamber for storing food items and a mechanic chamber provided at one side thereof; a heat exchanger disposed in the mechanic chamber and performing heat exchanging while a refrigerant passes therethrough; a cross flow fan disposed facing the heat exchanger and blowing air for heat exchange; and a compressor mounted inside the mechanic chamber and compressing a refrigerant. A space for the mechanic chamber can be reduced, and thus, a cooling chamber for keeping food items can be enlarged.

Abstract: A heat exchanger comprising a plurality of refrigerant pipes bent many times for passing a refrigerant for heat exchange; and cooling fins arranged at an outer circumference surface of the refrigerant pipes for expanding a contact area of air which passes through the refrigerant pipes, wherein a direction that the refrigerant pipes are bent is a major axis and a perpendicular direction to the major axis is a minor axis. In the heat exchanger, a bending portion of the refrigerant pipe is prevented from being distorted thus to have a smooth refrigerant flow and enhance a heat exchange performance.

Abstract: A defroster for a heat exchanger includes a heat transfer plate on the heat exchanger; a thin film heater arranged on the heat transfer plate; and a power supply wire connected to the film heater for supplying power to the film heater. The defroster can be fabricated by forming a masking layer with a certain shape on an electrically resistant substrate; patterning a thin film heater on the substrate based on the shape of the masking layer; adhering the film heater to a heat transfer plate; and connecting a power supply to the film heater. Accordingly, it is possible to improve a defrosting performance of the heat exchanger and use an environment-friendly, alternative refrigerant with the relatively, low temperature defroster of the heat exchanger.

Abstract: A defroster for a heat exchanger includes a heat transfer plate on the heat exchanger; a thin film heater arranged on the heat transfer plate; and a power supply wire connected to the film heater for supplying power to the film heater. The defroster can be fabricated by forming a masking layer with a certain shape on an electrically resistant substrate; patterning a thin film heater on the substrate based on the shape of the masking layer; adhering the film heater to a heat transfer plate; and connecting a power supply to the film heater. Accordingly, it is possible to improve a defrosting performance of the heat exchanger and use an environment-friendly, alternative refrigerant with the relatively, low temperature defroster of the heat exchanger.

Abstract: A heat exchanger comprising a plurality of refrigerant pipes bent many times for passing a refrigerant for heat exchange; and cooling fins arranged at an outer circumference surface of the refrigerant pipes for expanding a contact area of air which passes through the refrigerant pipes, wherein a direction that the refrigerant pipes are bent is a major axis and a perpendicular direction to the major axis is a minor axis. In the heat exchanger, a bending portion of the refrigerant pipe is prevented from being distorted thus to have a smooth refrigerant flow and enhance a heat exchange performance.

Abstract: A heat exchanger includes: refrigerator pipes arranged at regular intervals; and cooling pins arranged between the refrigerator pipes and integrally formed with the refrigerator pipes. A fabrication process and cost can be reduced, a heat transfer performance can be enhanced, and the life span of the heat exchanger can be lengthened.