Heat exchanger

Patent metadata

Field	Value
Publication number	US-9557121-B2
Application number	US-201313874933-A
Country	US
Kind code	B2
Filing date	May 1, 2013
Priority date	May 4, 2012
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

Provided is a heat exchanger. The heat exchanger includes a plurality of refrigerant tubes in which a refrigerant flows, a heat dissipation-fin in which the plurality of refrigerant tubes are inserted and through which the refrigerant and a fluid are heat-exchanged with each other, a header coupled to at least one side of the plurality of refrigerant tubes to define a refrigerant flow space, and a guide device disposed within the header to branch the refrigerant into a plurality of passages corresponding to the plurality of refrigerant tubes.

First claim

What is claimed is:

1. A heat exchanger comprising:
a plurality of flat tubes in which a refrigerant flows;
a heat dissipation-fin in which the plurality of flat tubes are inserted and through which the refrigerant and a fluid are heat-exchanged with each other;
a first header including a refrigerant inflow part through which a refrigerant is introduced into the heat exchanger and a refrigerant discharge part through which the refrigerant heat-exchanged within heat exchanger is discharged;
a second header spaced apart from the first header; and
a guide device disposed within the second header to route the refrigerant into a plurality of passages corresponding to the plurality of refrigerant,
wherein the first header and the second header are extending vertically by a predetermined length,
wherein the plurality of flat tubes are coupled to the first header and the second header to extend horizontally,
wherein an end of one side of each of plurality of flat tubes is coupled to the first header, and an end of the other side of each of the plurality of flat tubes is coupled to the second header,
wherein the refrigerant inflow part is disposed in a lower portion of the first header, and the refrigerant discharge part is disposed in an upper portion of the first header,
wherein the guide device is disposed on a refrigerant channel closer to the refrigerant discharge part than to the refrigerant inflow part, the guide device being disposed at a position corresponding to the refrigerant discharge part,
wherein the guide device comprises:
a plurality of guide parts distributing the refrigerant into a plurality of flow spaces, and
a partition part coupled to a side of the plurality of guide parts, the partition part having a plurality of communication holes through which the refrigerant flowing into the plurality of flow spaces flows into the flat tubes.

2. The heat exchanger according to claim 1 , wherein the guide device further comprises a plurality of partition walls extending from the partition part toward the flat tubes to guide the refrigerant passing through the communication holes into the flat tubes.

3. The heat exchanger according to claim 2 , wherein the first header and the second header each comprise a tube coupling part to which the flat tubes are coupled, and wherein the same number of tube coupling parts are disposed between the each of the plurality of partition walls and an adjacent partition wall.

4. The heat exchanger according to claim 1 , wherein a guide inflow part through which the refrigerant is introduced into the guide part is disposed in a side of the guide part, and
a distance between the communication hole defined in one flow space of the plurality of flow spaces and the guide inflow part is different from that between the communication hole defined in another flow space of the plurality of flow spaces and the guide inflow part.

Assignees

• Lg Electronics Inc

Inventors

• Park Taegyun
• Kim Sehyeon
• Jung Seungmo
• Lee Eungyul
• Yoo Sanghoon
• Park Naehyun

Classifications

• F28F1/32

  the means having portions engaging further tubular elements · CPC title

• F28F9/0204 Primary

  for elongated header box, e.g. with transversal and longitudinal partitions · CPC title

• F28D2021/0068

  for refrigerant cycles · CPC title

• F28F9/0278

  in the form of stacked distribution plates or perforated plates arranged over end plates · 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