Refrigerator with cooling chamber-connecting drain pipe

Abstract

A refrigerator that prevents air from flowing between two storage chambers through drain pipes draining defrosted water is provided. The refrigerator includes a main body including a first cooling chamber generating cool air supplied to a first storage chamber, and a second cooling chamber generating cool air supplied to a second storage chamber; a first drain pipe draining water collected from the first cooling chamber to a water collecting basin provided at an outside of the first and second cooling chambers; and a second drain pipe draining water collected from the second cooling chamber to the water collecting basin. The first drain pipe includes an insertion portion, which is inserted into the second drain pipe and is extended to the water collecting basin.

1 . A refrigerator, comprising:
 a main body including a first cooling chamber generating cool air supplied to a first storage chamber and a second cooling chamber generating cool air supplied to a second storage chamber;   a first drain pipe draining water collected from the first cooling chamber to a water collecting basin provided at an outside of the first and second cooling chambers; and   a second drain pipe draining water collected from the second cooling chamber to the water collecting basin,   wherein the first drain pipe includes an insertion portion inserted into the second drain pipe and extended to the water collecting basin.   
   
   
       2 . The refrigerator according to  claim 1 , wherein a drain channel draining the water from the second cooling chamber to the water collecting basin is formed between the outer surface of the insertion portion and the inner surface of the second drain pipe. 
   
   
       3 . The refrigerator according to  claim 2 , wherein the first and second cooling chambers are divided from each other such that the first cooling chamber is located at an upper portion of the main body, and
 wherein the first drain pipe further includes an extension portion, which is extended upwardly from the insertion portion and is in communication with the first cooling chamber, and the drain channel is in communication with to the second cooling chamber.   
   
   
       4 . The refrigerator according to  claim 2 , wherein the first and second drain pipes are integrated into one body. 
   
   
       5 . The refrigerator according to  claim 4 , wherein connecting parts connecting the first and second drain pipes are provided in the drain channel. 
   
   
       6 . The refrigerator according to  claim 1 , wherein the water collecting basin is a machinery chamber located at a lower portion of the main body, and the refrigerator further comprises an evaporating dish to collect and to store water drained through the first and second drain pipes installed in the machinery chamber. 
   
   
       7 . A refrigerator, comprising:
 a first evaporator cooling a first storage chamber;   a second evaporator installed below the first evaporator cooling a second storage chamber located under the first storage chamber;   a first water tray disposed below the first evaporator;   a second water tray disposed below the second evaporator;   a first drain pipe having an end connected to the first water tray and extending downwardly; and   a second drain pipe having an end connected to the second water tray and extending downwardly,   wherein the first drain pipe includes an insertion portion inserted into the second drain pipe and extended.   
   
   
       8 . The refrigerator according to  claim 7 , wherein the first and second drain pipes are integrated into one body. 
   
   
       9 . A refrigerator, comprising:
 a first evaporator cooling a first storage chamber;   a second evaporator installed below the first evaporator cooling a second storage chamber located under the first storage chamber;   a first water tray disposed below the first evaporator;   a second water tray disposed below the second evaporator; and   a drain pipe draining water collected by the first and second water trays,   wherein the drain pipe includes a first drain channel having one end connected to the first water tray and another end extending downwardly, and a second drain channel having one end connected to the second water tray and another end extending downwardly independently of the first drain channel.   
   
   
       10 . The refrigerator according to  claim 9 , wherein the drain pipe further includes a diaphragm extended vertically to divide the first and second drain channels from each other. 
   
   
       11 . A drainage system used within a refrigerator having a first cooling chamber and a second cooling chamber, comprising:
 a first water tray provided within the first cooling chamber to collect water created in the first cooling chamber;   a second water tray provided within the second cooling chamber to collect water created in the second cooling chamber;   a water collecting basin provided beneath the first and second cooling chambers; and   a drain pipe extending from the first water tray through the second water tray to the water collecting basin, the drain pipe draining water collected by the first and second water trays to the water collecting basin.   
   
   
       12 . The drainage system according to  claim 11 , wherein the drain pipe comprises a first drain pipe part having an end connected to the first water tray and a second drain pipe part having an end connected to the second water tray, the first drain pipe part being extended through the second water tray, into the second drain pipe part and to the water collecting basin. 
   
   
       13 . The drainage system according to  claim 11 , wherein the drain pipe comprises a first drain pipe part having an end connected to the first water tray and a second drain pipe part having an end connected to the second water tray, the first and second drain pipe parts being integrated into an integral pipe unit. 
   
   
       14 . The drainage system according to  claim 13 , the integral pipe unit further comprising connecting parts connecting an outer surface of the first drain pipe part and an inner surface of the second drain pipe part to integrate the first and second drain pipe parts. 
   
   
       15 . The drainage system according to  claim 13 , wherein the integral pipe unit includes a first drain channel extending through the first drain pipe part and the second drain pipe part, and a second drain channel extending through the second drain pipe part. 
   
   
       16 . The drainage system according to  claim 15 , wherein the first drain channel includes an upper channel and a lower channel, the lower channel being arranged in parallel relation with the second drain channel and being divided by a diaphragm.