US2015226498A1PendingUtilityA1

Heat exchanger

Assignee: LG ELECTRONICS INCPriority: Feb 7, 2014Filed: Jan 21, 2015Published: Aug 13, 2015
Est. expiryFeb 7, 2034(~7.5 yrs left)· nominal 20-yr term from priority
F28F 9/22F28F 9/0202F28F 9/0204F28D 1/05391F28F 9/028F25B 39/00
37
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Claims

Abstract

A heat exchanger is provided. The heat exchanger includes a refrigerant tube through which a refrigerant flows, the refrigerant tube being arranged in a plurality of rows, a first header on which a refrigerant inflow part is disposed, the first header being coupled to one side of the plurality of refrigerant tubes, a first partition part for partitioning an inner space of the first header, a second header on which a refrigerant discharge part is disposed, the second header being coupled to the other side of the plurality of refrigerant tubes, a second partition part for partitioning an inner space of the second header, and a baffle coupled to the first or second partition part, the baffle guiding a flow of the refrigerant from the header to the plurality of refrigerant tubes. The refrigerant discharge part of the second header is disposed lower than the refrigerant inflow part of the first header.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A heat exchanger comprising:
 a plurality of refrigerant tubes through which a refrigerant flows, the plurality of refrigerant tubes arranged in a plurality of rows;   a first header on which a refrigerant inflow part is disposed, coupled to a first side of the plurality of refrigerant tubes;   a first partition part for partitioning an inner space of the first header;   a second header on which a refrigerant discharge part is disposed, coupled to a second side of the plurality of refrigerant tubes;   a second partition part for partitioning an inner space of the second header; and   a plurality of baffles coupled to the first or second partition part, the plurality of baffles guiding a flow of the refrigerant from the first or the second header to the plurality of refrigerant tubes,   wherein the refrigerant discharge part of the second header is located below the refrigerant inflow part of the first header.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein the first side of the plurality of refrigerant tubes comprises an upper side of the plurality of refrigerant tubes, and
 the second side of the plurality of refrigerant tubes comprises a lower side of the plurality of refrigerant tubes.   
     
     
         3 . The heat exchanger according to  claim 1 , wherein the first header comprises a first front part and a first rear part, and
 the first front part and the first rear part are partitioned by the first partition part.   
     
     
         4 . The heat exchanger according to  claim 3 , wherein the refrigerant inflow part is disposed on a bottom surface of the first front part. 
     
     
         5 . The heat exchanger according to  claim 3 , wherein the second header comprises a second front part and a second rear part, and
 the second front part and the second rear part are partitioned by the second partition part.   
     
     
         6 . The heat exchanger according to  claim 5 , wherein the refrigerant discharge part is disposed on a side surface of the second rear part. 
     
     
         7 . The heat exchanger according to  claim 5 , wherein the plurality of refrigerant tubes comprises a front tube and a rear tube, which are arranged on a front side and a rear side of the heat exchanger, respectively,
 wherein the front tube is coupled to the first and second front parts, and the rear tube is coupled to the first and second rear parts.   
     
     
         8 . The heat exchanger according to  claim 3 , wherein the plurality of baffles comprises:
 a first baffle disposed in the first front part to partition an inner space of the first front part; and   a second baffle disposed in the second rear part to partition an inner space of the second rear part.   
     
     
         9 . The heat exchanger according to  claim 8 , wherein the first and second baffles are respectively coupled to a first side surface and a second side surface of the first partition part,
 wherein the first side surface and the second side surface face each other.   
     
     
         10 . The heat exchanger according to  claim 8 , wherein the first header comprises a first side portion on which the refrigerant inflow part is disposed and a second side portion facing the first side portion,
 wherein a distance from the first baffle to the first side portion of the first header is less than the distance from the second baffle to the first side portion of the first header, and   a distance from the second baffle to the second side portion of the first header is less than a distance from the first baffle to the second side portion of the first header.   
     
     
         11 . The heat exchanger according to  claim 5 , wherein a guide hole for guiding a flow of the refrigerant is defined in the first partition part,
 wherein the guide hole is defined in a position that is closer to the refrigerant discharge part than the refrigerant inflow part.   
     
     
         12 . The heat exchanger according to  claim 11 , wherein the guide hole guides the refrigerant such that the refrigerant in the first front part flows toward the first rear part or is branched to flow into the plurality of refrigerant tubes. 
     
     
         13 . The heat exchanger according to  claim 5 , wherein the plurality of baffles are coupled to a first side and a second side of the second partition part, and
 a plurality of through holes separated by the plurality of baffles are defined in the second partition part.   
     
     
         14 . The heat exchanger according to  claim 13 , wherein the plurality of baffles comprise:
 fourth and sixth baffles disposed spaced apart from each other within the second rear part; and   third and fifth baffles disposed spaced apart from each other within the second front part.   
     
     
         15 . The heat exchanger according to  claim 14 , wherein the plurality of through holes comprise:
 a plurality of first through holes defined between a first side portion of the second header and the third and fourth baffles;   a plurality of second through holes defined between the third and fourth baffles and the fifth and sixth baffles; and   a plurality of third through holes defined between the fifth and sixth baffles and a second side portion of the second header,   wherein the plurality of second through holes are located between the plurality of first through holes and the plurality of third through holes.   
     
     
         16 . A heat exchanger comprising:
 a plurality of refrigerant tubes through which a refrigerant flows, the plurality of refrigerant tubes arranged in a plurality of rows;   a first header coupled to an upper side of the plurality of refrigerant tubes and extending in a horizontal direction;   a first partition part partitioning an inner space of the first header;   a second header coupled to a lower side of the plurality of refrigerant tubes and extending in the horizontal direction;   a second partition part partitioning an inner space of the second header;   a plurality of baffles coupled to the first or second partition part, the baffle guiding a flow of the refrigerant from the first or the second header to the plurality of refrigerant tubes;   a refrigerant inflow part disposed on a bottom surface of the first header to guide upward introduction of the refrigerant; and   a refrigerant discharge part disposed on a side surface of the second header to guide lateral discharge of the refrigerant.   
     
     
         17 . The heat exchanger according to  claim 16 , wherein the first header comprises a first front part and a second rear part partitioned from each other by the first partition part, and
 the plurality of baffles comprises:   a first baffle partitioning an inner space of the first front part and coupled to a first side surface of the first partition part; and   a second baffle partitioning an inner space of the first rear part and coupled to a second side surface of the first partition part,   wherein the first side surface and the second side surface of the first partition part face each other.   
     
     
         18 . The heat exchanger according to  claim 17 , wherein a through hole passes through at least a first side portion of the first partition part and is defined at a position that is closer to a downstream side than an upstream side of a refrigerant passage,
 wherein the refrigerant passage communicates from the refrigerant inflow part to the refrigerant discharge part.   
     
     
         19 . The heat exchanger according to  claim 16 , wherein the second header comprises a second front part and a second rear part partitioned from each other by the second partition part, and
 the plurality of baffles comprises:   third and fifth baffles partitioning an inner space of the second front part and coupled to a first side surface of the second partition part; and   fourth and sixth baffles partitioning an inner space of the second rear part and coupled to a second side surface of the second partition part,   wherein the first side surface and the second side surface of the second partition part face each other.   
     
     
         20 . The heat exchanger according to  claim 19 , wherein the third and fourth baffles are arranged in a line with respect to the second partition part, and
 the fifth and sixth baffles are arranged in a line with respect to the second partition part.   
     
     
         21 . The heat exchanger according to  claim 20 , wherein a plurality of through holes separated from each other by the third and fourth baffles or the fifth and sixth baffles are defined in the second partition part.

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