Refrigerator having heat exchanger including baffle blocking header tube

Patent metadata

Field	Value
Publication number	US-9863722-B2
Application number	US-201313929257-A
Country	US
Kind code	B2
Filing date	Jun 27, 2013
Priority date	Jul 6, 2012
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A refrigerator includes a body, first and second storage compartments, first and second refrigerating units to cool the first and second storage compartments, and a heat exchanger to individually condense first and second refrigerants of the first and second refrigerating units and a second refrigerant of the second refrigerating unit. The heat exchanger includes first and second headers each having an opening formed in the outer wall, a tube inserted into the first and second headers through the openings, and a baffle disposed in the internal space of the first header so as to partition off the internal space of the first header. The tube includes a plurality of channels spaced apart from each other by a predetermined gap, and the baffle blocks at least one of the plurality of channels.

First claim

What is claimed is:

1. A refrigerator comprising:
a body;
storage compartments formed inside the body, the storage compartments including a first storage compartment and a second storage compartment;
a first refrigerating unit to cool the first storage compartment, the first refrigerating unit having a first compressor and a first evaporator;
a second refrigerating unit to cool the second storage compartment, the second refrigerating unit having a second compressor and a second evaporator; and
a heat exchanger to individually condense a first refrigerant of the first refrigerating unit and a second refrigerant of the second refrigerating unit,
wherein the heat exchanger comprises
a first header having an outer wall that constitutes an internal space and an opening formed in the outer wall;
a second header having an outer wall that constitutes an internal space and an opening formed in the outer wall;
a tube having one end inserted into the internal space of the first header through the opening of the first header and the other end inserted into the internal space of the second header through the opening of the second header so as to communicate the internal space of the first header with the internal space of the second header;
heat-exchanging fins that contact the tube; and
a baffle disposed in the internal space of the first header so as to partition off the internal space of the first header or disposed in the internal space of the second header so as to partition off the internal space of the second header, the baffle having a stopper formed in the baffle so as to limit an insertion depth of the tube,
wherein the tube comprises a plurality of channels spaced apart from each other by a predetermined gap,
wherein the stopper has a groove so as to accommodate a portion of the tube,
wherein the first header or the second header comprise a position adjustment hole formed in the outer wall opposite to the opening, the baffle having an insertion protrusion inserted into the position adjustment hole,
wherein the heat exchanger is divided into a first path and a second path as the insertion protrusion is inserted into the position adjustment hole, and
each of the first path and the second path has an inlet and an outlet.

2. The refrigerator according to claim 1 , wherein the stopper comprises a first support face that prevents movement in a direction in which the tube is inserted into the first and second headers, and a second support face and a third support face that are formed perpendicular to the first support face so as to prevent movement in a direction perpendicular to the insertion direction of the tube.

3. The refrigerator according to claim 1 , wherein each of the openings of the first and second headers has a rectangular shape and is formed in parallel to the first header or the second header.

4. The refrigerator according to claim 1 , wherein each of the openings is sealed by the tube.

5. The refrigerator according to claim 1 , wherein the baffle and the tube are combined with each other by brazing.

6. The refrigerator according to claim 1 , wherein the first refrigerant and the second refrigerant are different types of refrigerant.

7. A heat exchanger comprising:
a header having an outer wall and an internal space formed in the outer wall;
a tube having a plurality of channels through which a refrigerant flows;
heat-exchanging fins that contact the tube; and
a baffle disposed in the internal space of the header so as to guide a flow of the refrigerant in the internal space of the header,
wherein an opening is formed in the outer wall of the header so that portions of the tube are inserted into the internal space of the header through the opening,
wherein a stopper is formed in the baffle so as to limit an insertion depth of the tube,
wherein the plurality of channels are spaced apart from each other by a predetermined gap,
wherein the stopper has a groove so as to accommodate a portion of the tube,
wherein the header comprises a position adjustment hole formed in the outer wall opposite to the openings, the baffle having an insertion protrusion inserted into the position adjustment hole,
wherein the heat exchanger is divided into a first path and a second path as the insertion protrusion is inserted into the position adjustment hole, and
each of the first path and the second path has an inlet and an outlet.

8. The heat exchanger according to claim 7 , wherein the opening comprises only one opening formed in the outer wall of the header.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Ki Hyun
• Kim Myoung Hun
• Kim Gab Jung
• Kim Sang Soo
• Choe Gyu Wan

Classifications

• F25B2400/06

  Several compression cycles arranged in parallel · CPC title

• F28D1/0417

  with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures · CPC title

• F28D1/0443

  Combination of units extending one beside or one above the other (F28D1/0452 takes precedence) · CPC title

• F28F2270/02

  by using blind conduits · CPC title

• F28F9/0212 Primary

  the partitions being separate elements attached to header boxes · CPC title