Apparatus and method for controlling cold air circulation in refrigerator

Abstract

The present invention relates to an apparatus and method for controlling cold air circulation in a refrigerator. The present invention re-circulates cold air, which has been discharged into a refrigerating chamber (35), so that the interior of the refrigerating chamber (35) can be maintained at a substantially uniform temperature and relatively low temperature cold air is prevented from being delivered to an evaporator (39). Particularly, the present invention further facilitates the cold air circulation at a lower portion of the refrigerating chamber (35) so that the temperature of the entire refrigerating chamber (35) can be kept to be uniform and the temperature of a vegetable storage chamber (36) can be set at a desired temperature. To this end, an embodiment of the present invention includes a circulation duct (50) configured to suck the cold air around the vegetable storage chamber (36) and to discharge it to a relatively upper portion of the refrigerating chamber (35). An inlet (51) of the circulation duct (50) is installed in vicinity of a rearward lower portion of the vegetable storage chamber (36), and an outlet of the circulation duct (50) is open to above a shelf (35') corresponding to a top end of the vegetable storage chamber (36). Further, a circulation fan (54) is installed at the outlet (52).

Description

technical field [0001] The present invention relates to a refrigerator, and more particularly to a device for controlling the circulation of cold air in the refrigerator, which uniformly distributes the internal temperature in the entire refrigerating chamber of the refrigerator. Background technique [0002] Figure 6 Shows a sectional view of a refrigerator using an existing device for controlling circulation of cold air therein. As shown in this figure, the freezing chamber 3 and the refrigerating chamber 5, which are storage spaces formed inside the main body 1 of the refrigerator, are separated from each other by a partition 4. As shown in FIG. A plurality of shelves 5' are provided on different levels of the refrigerating chamber 5 so that stored items can be placed on the shelves. The vegetable storage compartment 6 is formed at the lowermost part of the refrigerating compartment 5 for storing fruits or vegetables individually therein. Usually, the vegetable storage...

AI Technical Summary

Problems solved by technology

Because in this way, the temperature of the refrigerating chamber 5 is not evenly set, the freshness of the food stored in the lower part of the refrigerating chamber 5 is reduced.

In addition, since the cold air in the upper part of the refrigerating chamber 5 returns to the evaporator 9 in a state having a relatively low temperature, heat loss occurs in the evaporator 9.

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