Heat exchanger

Patent metadata

Field	Value
Publication number	US-9429373-B2
Application number	US-201213452307-A
Country	US
Kind code	B2
Filing date	Apr 20, 2012
Priority date	Apr 21, 2011
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

Provided is a heat exchanger, which includes a plurality of tubes and a plurality of fins. The tubes accommodate respective refrigerant passages through which refrigerant flows. The fins having a plate shape are spaced apart from each other, and include a plurality of through holes through which the tubes pass, respectively. The fin is provided with a condensate water guide part guiding discharge of condensate water generated during heat exchange between air and the refrigerant flowing through the tube. Accordingly, adhesion of the tube and the fin is facilitated, the distance between neighboring fins is maintained, and condensate water is efficiently discharged.

First claim

What is claimed is:

1. A heat exchanger comprising:
a plurality of tubes accommodating respective refrigerant passages through which refrigerant flows; and
a plurality of fins having a plate shape, spaced apart from each other, and including: a plurality of through holes through which the tubes pass, respectively,
wherein the fin is provided with a condensate water guide part guiding discharge of condensate water generated during heat exchange between air and the refrigerant flowing through the tube,
wherein at least one portion of the fin is provided with ribs to increase an adhering area between the fin and the tube.

2. The heat exchanger according to claim 1 , wherein the condensate water guide part comprises slopes formed by inclining a portion of the fin upward and downward from a surface of the fin.

3. The heat exchanger according to claim 1 , wherein the condensate water guide part comprises:
two first slopes inclined upward in a width direction of the fin from a surface of the fin, at both side ends of the fin; and
two second slopes inclined downward in the width direction of the fin, at respective ends of the first slopes, and having respective ends connected to each other.

4. The heat exchanger according to claim 3 , wherein the second slope is provided with a plurality of louvers.

5. The heat exchanger according to claim 3 , wherein each of the first slopes is connected to a corresponding one of the second slopes between a corresponding one of both the side ends of the fin and a corresponding one of imaginary lines extending in a longitudinal direction of the fin to pass through both ends of the through hole, and
the second slopes are connected to each other on an imaginary line extending in the longitudinal direction of the fin to pass through a central portion of the through hole.

6. The heat exchanger according to claim 3 , wherein each of the first slopes is connected to a corresponding one of the second slopes between a corresponding one of imaginary lines extending in a longitudinal direction of the fin to pass through both ends of the through hole, and an imaginary line extending in the longitudinal direction of the fin to pass through a central portion of a width of the through hole, and
the second slopes are connected to each other on the imaginary line extending in the longitudinal direction of the fin to pass through the central portion of the width of the through hole.

7. The heat exchanger according to claim 3 , wherein a length of the second slope in the width direction of the fin is equal to or greater than a length of the first slope in the width direction of the fin.

8. The heat exchanger according to claim 1 , wherein the condensate water guide part comprises:
two first slopes inclined upward in a width direction of the fin from a surface of the fin, at both side ends of the fin
a plurality of second slopes each inclined downward in the width direction of the fin, at an end of the first slope;
a plurality of third slopes each inclined upward in the width direction of the fin, at an end of the second slope; and
a plurality of fourth slopes each inclined downward in the width direction of the fin, at an end of the third slope, and having respective ends connected to each other.

9. The heat exchanger according to claim 8 , wherein the second and fourth slopes are provided with a plurality of louvers.

10. The heat exchanger according to claim 8 , wherein the first slopes are connected to the second slopes on imaginary lines extending in a longitudinal direction of the fin to pass through both ends of the through hole,
each of the second slopes and each of the third slopes are connected to a corresponding one of the third slopes and a corresponding one of the fourth slopes, respectively, between a corresponding one of the imaginary lines extending in the longitudinal direction of the fin to pass through both the ends of the through hole, and an imaginary line extending in the longitudinal direction of the fin to pass through a central portion of a width of the through hole, and
the fourth slopes are connected to each other on the imaginary line extending in the longitudinal direction of the fin to pass through the central portion.

11. The heat exchanger according to claim 8 , wherein each of the first slopes, each of the second slopes, and each of the third slopes are connected to a corresponding one of the second slopes, a corresponding one of the third slopes, and a corresponding one of the fourth slopes, respectively, between a corresponding one of the imaginary lines extending in the longitudinal direction of the fin to pass through both the ends of the through hole, and the imaginary line extending in the longitudinal direction of the fin to pass through the central portion, and
the fourth slopes are connected to each other on the imaginary line extending in the longitudinal direction of the fin to pass through the central portion.

12. The heat exchanger according to claim 8 , wherein a length of the second slope in the width direction of the fin is equal to or greater than a length of the first slope in the width direction of the fin, and
a length of the fourth slope in the width direction of the fin is equal to or greater than a length of the third slope in the width direction of the fin.

13. The heat exchanger according to Claim 1 , wherein the rib extends from a portion of the fin corresponding to a periphery of the through hole to contact a surface of another fin adjacent to the rib.

14. The heat exchanger according to claim 1 , wherein a sheet-shaped brazing material is disposed between an outer surface of the tube and an inner surface of the rib to couple the fin and the tube through brazing.

15. A heat exchanger comprising:
a plurality of tubes accommodating respective refrigerant passages through which refrigerant flows; and
a plurality of fins having a plate shape, spaced apart from each other, and including a plurality of through holes through which the tubes pass, respectively, each of the fins including a first slope, a second slope, and a plurality of louvers,
wherein the first slope is provided in two, which are inclined upward in a width direction of the fin from a surface of the fin, at both side ends of the fin;
the second slope is provided in two, which are inclined downward in the width direction of the fin, at respective ends of the first slopes, and having respective ends connected to each other; and
the louvers are provided on the second slopes.

16. The heat exchanger according to claim 15 , wherein an end of each of the first slopes is connected to an end of a corresponding one of the second slopes between a corresponding one of both the side ends of the fin and a corresponding one of imaginary lines extending in a longitudinal direction of the fin to pass through both ends of the through hole, and
the ends of the second slopes are connected to each other on an imaginary line extending in the longitudinal direction of the fin to pass through a central portion of the through hole.

17. The heat exchanger according to claim 15 , wherein a length of the second slope in the width direction of the fin is greater than a length of the first slope in the width direction of the fin.

18. The heat exchanger according to claim 15 , wherein at least one portion of the fin is provided with ribs that extend from a portion of the fin corresponding to a periphery of the through hole to increase an adhering area between the fin and the tube during brazing.

19. The heat exchanger

Assignees

• Park Taegyun
• Park Naehyun
• Lg Electronics Inc

Inventors

• Park Taegyun
• Park Naehyun

Classifications

• F28D2021/0068

  for refrigerant cycles · CPC title

• F28F1/325

  Fins with openings · CPC title

• F28D1/05316

  Assemblies of conduits connected to common headers, e.g. core type radiators (F28D1/05366 takes precedence) · CPC title

• F28F2240/00

  Spacing means · CPC title

• F28F17/005 Primary

  Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence) · CPC title