Patent ID: 8707724

Claim:
A refrigerator having an ice making chamber, the refrigerator comprising: a main body having at least one cooling chamber formed therein and lateral wall passages formed in a lateral wall of the at least one cooling chamber; a door rotatably coupled to the main body so as to open and close the at least one cooling chamber, the door comprising: an outer plate that defines an exterior side of the door; and an inner plate coupled to the outer plate, the inner plate defining an interior side of the door; an ice making chamber provided on the interior side of the door, the ice making chamber being installed on an inner surface of the door such that a gap having a predetermined length is formed between a lateral wall of the ice making chamber and a lateral wall of the inner plate adjacent to the lateral wall passages a connection duct that connects the ice making chamber to the lateral wall passages, wherein the connection duct extends through the gap formed between the lateral wall of the ice making chamber and the lateral wall of the inner plate, the connection duct comprising a passage forming member having a predetermined length corresponding to the predetermined length of the gap such that the passage forming member extends through the gap and has a first end engaged within an opening in the lateral wall of the ice making chamber and a second end engaged within an opening in the inner plate such that the passage forming member is contained within the gap formed between the lateral wall of the ice making chamber and the lateral wall of the inner plate adjacent to the lateral wall passages; and defines an air passage between the first and second ends thereof; and a foaming material filled in a space between the inner and outer plates of the door and directly surrounding the passage forming member, securing the connection duct in place within the space formed between the inner and outer plates of the door and insulating the passage forming member, wherein the passage forming member is made of a synthetic resin material, a rigidity of the passage forming member being greater than that of the foaming material, wherein the passage forming member comprises first and second partial passage forming members arranged vertically and immediately adjacent to each other, and coupled so as to define at least one air passage therebetween, and wherein the lateral wall of the inner plate comprises a coupling portion extending along the circumference of the opening, the second end of the passage forming member comprises a plurality of protrusions and protrusion accommodating portions, and the coupling portion of the inner plate comprises a plurality of through holes corresponding to the plurality of protrusions and protrusion accommodating portions formed at the second end of the passage forming member.