Refrigerator

Abstract

Proposed is a refrigerator. The refrigerator may include: main doors open and closed, while sealing a storage room of the refrigerator, and having accommodation spaces and a dispenser located therein; sub-doors open and closed, while sealing the accommodation spaces, and connected to the main doors; and an ice making room connected to one side main door to supply water or ice to the dispenser, while being connected to refrigerant pipe of the refrigerator.

What is claimed is: 
     
         1 . A refrigerator comprising:
 at least one main door for a storage room of the refrigerator, the at least one main door having at least one auxiliary storage room and a dispenser;   at least one sub-door for the at least one auxiliary storage room, the at least one sub-door connected to the at least one main door; and   an ice making room connected to the at least one main door to supply water or ice to the dispenser, and connected to a refrigerant pipe of the refrigerator.   
     
     
         2 . The refrigerator according to  claim 1 , wherein the refrigerant pipe comprises:
 a first refrigerant pipe positioned on a ceiling of the refrigerator; and   at least one flexible tube positioned between the at least one main door and the refrigerator and having one end connected to the first refrigerant pipe and the other end connected to the ice making room.   
     
     
         3 . The refrigerator according to  claim 2 , wherein the ice making room comprises:
 an ice maker configured to store water therein and turn the water into ice and connected to the at least one flexible tube;   a cooling fan disposed in the ice making room, being spaced apart from the ice maker; and   an ice bucket located under the ice maker.   
     
     
         4 . The refrigerator according to  claim 3 , wherein the ice maker comprises a tray made of a thermal conductive composite material heated in response to an electric current supplied thereto, and wherein a second refrigerant pipe connected to the at least one flexible tube is located on a lower portion of the tray. 
     
     
         5 . The refrigerator according to  claim 3 , wherein as the ice is produced in the tray, the tray rotates toward the ice bucket to separate the produced ice therefrom. 
     
     
         6 . The refrigerator according to  claim 5 , wherein the at least one flexible tube has connectors whose both ends are fitted to the first refrigerant pipe and the second refrigerant pipe so that as the tray rotates, the connectors rotate the at least one flexible tube. 
     
     
         7 . The refrigerator according to  claim 5 , further comprising a draining plate provided between the ice maker and the ice bucket to induce defrosted water of the ice maker to a water tray of the dispenser. 
     
     
         8 . The refrigerator according to  claim 1 , wherein the refrigerant pipe comprises:
 a first refrigerant pipe located on a ceiling of the refrigerator;   a second refrigerant pipe connected to an ice maker located inside the ice making room and filled with a refrigerant; and   a heat exchanger located between the first refrigerant pipe and the second refrigerant pipe to perform heat exchange between the first refrigerant pipe and the second refrigerant pipe so that the refrigerant is condensed to a fluid.   
     
     
         9 . The refrigerator according to  claim 8 , wherein the ice maker comprises the tray disposed lower than the heat exchanger and being contact with the second refrigerant pipe connected to the heat exchanger so that the ice is formed therein by the heat exchange. 
     
     
         10 . The refrigerator according to  claim 9 , wherein the second refrigerant pipe comprises a circulation fan disposed between the tray and the heat exchanger to supply the refrigerant to the heat exchanger, and the refrigerant is supplied to the heat exchanger after being changed to a gas phase by the heat exchange with the tray. 
     
     
         11 . The refrigerator according to  claim 1 , wherein the at least one auxiliary storage room is located at a top of the dispenser. 
     
     
         12 . The refrigerator according to  claim 1 , wherein the storage room comprises:
 a refrigerating room to which the at least one main door is connected; and   a freezing room located at a underside of the refrigerating room to supply cold air to the at least one main door.