초록 ▼

A temperature setting part sets a reference temperature of the interior of a refrigerating compartment of a refrigerator. A door opening/closing detection part detects opening and closing of a door of the refrigerating compartment. First and second temperature detecting parts detect the interior and

A temperature setting part sets a reference temperature of the interior of a refrigerating compartment of a refrigerator. A door opening/closing detection part detects opening and closing of a door of the refrigerating compartment. First and second temperature detecting parts detect the interior and exterior temperatures of the refrigerating compartment respectively. An air curtain fan driving part drives an air curtain fan. A control part performs a normal cooling operation to control the interior temperature of the refrigerating compartment by driving the cooling fan when the interior temperature is under a reference temperature, drives the air curtain fan with each of the numbers of rotations corresponding to each of several temperature ranges, and performs the normal cooling operation by stopping the driving of the air curtain fan if the closing of the door of the refrigerating compartment is detected. Cooling efficiency and electric power efficiency are enhanced by efficiently driving the air curtain fan according to the interior and exterior conditions of the refrigerating compartment.

대표청구항 ▼

[ What is claimed is:] [1.] An air curtain fan driving device, comprising:a temperature setting part for setting a reference temperature of an interior of a refrigerating compartment of a refrigerator;a door opening/closing detection part for detecting opening and closing of a door of the refrigerat

[ What is claimed is:] [1.] An air curtain fan driving device, comprising:a temperature setting part for setting a reference temperature of an interior of a refrigerating compartment of a refrigerator;a door opening/closing detection part for detecting opening and closing of a door of the refrigerating compartment;first and second temperature detecting parts for detecting the interior and exterior temperature of the refrigerating compartment, respectively;an air curtain fan driving part for driving an air curtain fan; anda control part for 1) performing a normal cooling operation to control the interior temperature of the refrigerating compartment by driving a cooling fan when the interior temperature is above the reference temperature, 2) determining which of several temperature ranges the exterior temperature belongs in, when the opening of the door of the refrigerating compartment is detected by the door opening/closing detection part, wherein the several temperature ranges are preset, 3) driving the air curtain fan with each of a number of rotations per minute corresponding to each of the several temperature ranges according to a determination result during the opening of the door, and 4) performing the normal cooling operation by stopping the driving of the air curtain fan when the closing of the door of the refrigerating compartment is detected.