Heat exchanger

Patent metadata

Field	Value
Publication number	US-10151538-B2
Application number	US-201615295342-A
Country	US
Kind code	B2
Filing date	Oct 17, 2016
Priority date	Dec 31, 2015
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

A heat exchanger is provided that may include at least one refrigerant tube having a plurality of tube channels; a plurality of headers provided at both sides of the at least one refrigerant tube, and at least one distributor provided between one header among the plurality of header and the at least one refrigerant tube. The at least one distributor may include an opening through which the at least one refrigerant tube may be coupled to the distributor, and a shielding wall having an inlet/outlet that guides introduction or discharge of the refrigerant.

First claim

What is claimed is:

1. A heat exchanger, comprising:
at least one refrigerant tube configured for a refrigerant to flow therein, the at least one refrigerant tube having a plurality of tube channels;
a first header and a second header provided at both sides of the at least one refrigerant tube, respectively; and
a distributor provided between the first header or the second header and the at least one refrigerant tube, wherein the distributor includes a first distributor coupled to the first header and a second distributor coupled to the second header so as to be opposite to a coupling direction of the first distributor, wherein the first distributor includes:
a first upper distributor coupled to an upper portion of the first header, the first upper distributor having a first inlet through which the refrigerant is introduced from the first header; and
a first lower distributor coupled to a lower portion of the first header so as to be opposite to a coupling direction of the first upper distributor, the first lower distributor having a second outlet through which the refrigerant is discharged from the refrigerant tube, and wherein the second distributor includes:
a second upper distributor coupled to an upper portion of the second header, the second upper distributor having a first outlet through which the refrigerant is discharged from the refrigerant tube; and
a second lower distributor coupled to a lower portion of the second header so as to be opposite to a coupling direction of the second upper distributor, the second lower distributor having a second inlet through which the refrigerant is introduced from the second header.

2. The heat exchanger according to claim 1 , wherein each of the first distributor and the second distributor includes:
an opening forming at a first side of the distributor and through which the refrigerant tube is coupled to the distributor;
a shielding wall having an inlet/outlet on a second side of the distributor wherein the inlet/outlet is configured to guide introduction or discharge of the refrigerant;
a distributor main body having a distribution space; and
a plurality of guide channels formed in the distribution space, the plurality of guide channels being configured to change a direction of flow of the refrigerant flowing in the plurality of tube channels.

3. The heat exchanger according to claim 1 , wherein the first inlet is formed at a relatively distant position than the first outlet based on a flow direction of air approaching the heat exchanger.

4. The heat exchanger according to claim 2 , wherein each of the first distributor and the second distributor further includes at least one distribution rib that extends from the shielding wall, and wherein the at least one distribution rib partitions the distribution space into the plurality of guide channels.

5. The heat exchanger according to claim 2 , wherein a width of the guide channel in a first direction is formed greater than a width of the tube channel in the first direction.

6. The heat exchanger according to claim 5 , wherein the width of the guide channel in the first direction is formed to have a value corresponding to two times the width of the tube channel in the first direction.

7. The heat exchanger according to claim 2 , wherein the plurality of guide channels includes:
a first guide channel that changes a direction of flow of the refrigerant discharged from one tube channel among the plurality of tube channels to an opposite direction; and
a second guide channel that changes a direction of flow of the refrigerant discharged from another tube channel among the plurality of tube channels to an opposite direction.

8. The heat exchanger according to claim 1 , wherein the refrigerant tube is arranged to extend in a lateral direction, and the plurality of headers is arranged to extend in a longitudinal direction.

9. The heat exchanger according to claim 8 , wherein the at least one refrigerant tube includes a plurality of refrigerant tubes spaced apart from each other in the longitudinal direction, and wherein the heat exchanger further includes a plurality of fins provided between the plurality of refrigerant tubes.

10. A heat exchanger, comprising:
a plurality of refrigerant tubes configured for a refrigerant to flow therein, the plurality of refrigerant tubes each having a plurality of tube channels;
first and second headers provided at both sides of the plurality of refrigerant tubes, respectively; and
a plurality of first and second distributors provided between the first and second headers, respectively, and the plurality of refrigerant tubes, wherein a direction in which the second distributor is coupled to the second header and a direction in which the first distributor is coupled to the first header are opposite to each other, and wherein the plurality of first and second distributors includes:
an upper distributor coupled to an upper portion of the first and second headers; and
a lower distributor coupled to a lower portion of the first and second headers, wherein a direction in which the upper distributor is coupled to the first and second headers and a direction in which the lower distributor is coupled to the first and second headers are formed opposite to each other.

11. The heat exchanger according to claim 10 , wherein each distributor includes:
a distributor main body having a distribution space;
an opening forming at a first side of the distributor main body and through which the at least one refrigerant tube is coupled to the distributor;
a plurality of guide channels formed in the distribution space, the plurality of guide channels being configured to change a direction of flow of the refrigerant flowing in the plurality of tube channels;
a wall having an inlet/outlet at a second side of the distributor body; and
at least one distribution rib that extends from the wall, and wherein the at least one distribution rib partitions the distribution space into the plurality of guide channels.

12. The heat exchanger according to claim 11 , wherein a width of the guide channel in a first direction is formed greater than a width of the tube channel in the first direction.

13. The heat exchanger according to claim 10 , wherein the plurality of first distributors includes:
at least one first upper distributor connected to an upper portion of the first header, the at least one first upper distributor having a first inlet through which the refrigerant is introduced from the first header; and
at least one first lower distributor connected to a lower portion of the first header, the at least one first lower distributor having a second outlet through which the refrigerant is discharged from the refrigerant tube.

14. The heat exchanger according to claim 13 , wherein the first inlet is formed at a relatively distant position than the second outlet based on a flow direction of air approaching the heat exchanger.

Assignees

• Lg Electronics Inc

Inventors

• Lee Haeseung
• Na Byeongchul
• Lee Hyang

Classifications

• F28D1/05375 Primary

  with particular pattern of flow, e.g. change of flow direction (F28D1/05391 takes precedence) · CPC title

• F28F9/028

  by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels · CPC title

• F28F9/0282 Primary

  by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet · CPC title

• F28D1/05391

  with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators · CPC title

• F28F9/04

  Arrangements for sealing elements into header boxes or end plates {(arrangements for sealing flow lines connectors to header boxes F28F9/0248)} · CPC title