Heat exchange system

Patent metadata

Field	Value
Publication number	US-9927179-B2
Application number	US-201414652130-A
Country	US
Kind code	B2
Filing date	Jan 29, 2014
Priority date	Feb 1, 2013
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

Provided is a heat exchanger, and more particularly, a heat exchanger including a pair of header tanks formed in parallel, spaced apart from each other by a predetermined distance, a plurality of tubes having both ends fixed to the pair of header tanks to form a channel for a heat exchange medium; a plurality of fins fixed to abut between the tubes, and a plurality of louvers formed at the fins to contact air passing through the circumference of the fins, in which the louvers are formed to be asymmetrical to each other based on a center in a width direction of the fin or louver columns formed at one side or the other side of the fin in an asymmetrical form are alternately formed in a length direction of the fins to improve a flow of cooling air, thereby improving a heat radiation performance.

First claim

The invention claimed is:

1. A heat exchanger comprising:
a pair of header tanks formed in parallel, spaced apart from each other by a predetermined distance;
a plurality of tubes having ends fixed to the pair of the header tanks to form a channel for a heat exchange medium; and
a plurality of fins abutting the tubes, the fins having a plurality of louvers formed therein, wherein the louvres are formed in a first louvre column and a second louvre column formed parallel to the first louvre column, wherein the first louvre column includes a center bank formed between the louvres of the first louvre column and the second louvre column includes a center bank formed between the louvres of the second louvre column, wherein a center of the center bank of the first louvre column is offset to a first side of a center of the fin with respect to a width of the fin and a center of the center bank of the second louvre column is offset to a second side of the center of the fin with respect to the width of the fin, a first quantity of louvers formed on a first side of the center bank of the first louvre column different from a second quantity of louvers formed on a second side of the center bank of the first louvre column and a direction of the louvers on the first side of the center bank of the first louvre column formed to be opposite a direction of the louvers formed on the second side of the center bank of the first louvre column, a first quantity of louvers formed on a first side of the center bank of the second louvre column different from a second quantity of louvers formed on a second side of the center bank of the second louvre column and a direction of the louvers on the first side of the center bank of the second louvre column formed to be opposite a direction of the louvers formed on the second side of the center bank of the second louvre column, wherein the first louvre column and the second louvre column are alternately arranged along a length direction of the fin.

2. The heat exchanger of claim 1 , wherein the first quantity of louvers of the first louvre column is greater than the second quantity of louvers of the first louvre column, and wherein the louvres of the first louvre column on the first side of the center bank of the first louvre column are disposed where a temperature difference between air passing through a circumference of the louvers and the heat exchange medium flowing in the tube is at a maximum.

3. The heat exchanger of claim 1 , wherein a pitch of the louvers and incline angles of the louvers are equal.

4. The heat exchanger of claim 1 , wherein ends of each of the fins are provided with side support parts, and wherein a width of the center bank of the first louvre column and the center bank of the second louvre column of each of the fins is greater than a width of the side support parts.

5. The heat exchanger of claim 1 , wherein one end in the width direction of the fin is provided with a display unit.

6. The heat exchanger of claim 1 , wherein a distance between the center of the center bank of the first louvre column and the center of the center bank of the second louvre column is formed to be between one and three times a pitch of the louvers.

7. The heat exchanger of claim 1 , wherein a width of the center bank of the first louvre column in the width direction of the fin and a width of the center bank of the second louvre column in the width direction of the fin are each a multiple of a pitch of the louvers.

8. The heat exchanger of claim 1 , wherein a width of the center bank of the first louvre column and a width of the center bank of the second louvre column overlap each other in the width direction of the fin.

9. The heat exchanger of claim 1 , further comprising a pair of the first louver columns and a pair of the second louver columns, the pair of the first louver columns alternately arranged with the pair of the second louver columns along the length direction of the fin.

10. The heat exchanger of claim 1 , wherein a width of the center bank of the first louvre column and a width of the center bank of the second louvre column do not to overlap each other in the width direction of the fin.

11. The heat exchanger of claim 1 , wherein a first angle α of the louvers formed on the second side of the center bank of the first louvre column is equal to or greater than a second angle β of the louvers formed on the first side of the center bank of the first louvre column, and wherein the louvers are formed according to the following equation:
0.9×Sin α×the second quantity of louvers≤sin β×the first quantity of louvers≤1.1×Sin α×the second quantity of louvers.

12. The heat exchanger of claim 9 , wherein a distance between the center of the center bank of each of the pair of the first louvre columns and the center of the center bank of each of the pair of the second louvre columns is formed to be between one and three times a pitch of the louvers.

13. The heat exchanger of claim 9 , wherein a width of the center bank of each of the pair of the first louvre columns in the width direction of the fin and a width of the center bank of each of the pair of the second louvre columns in the width direction of the fin are each a multiple of a pitch of the louver.

14. The heat exchanger of claim 9 , wherein a width of the center bank of each of the pair of the first louvre columns and a width of the center bank of each of the pair of the second louvre columns overlap each other in the width direction of the fin.

15. The heat exchanger of claim 9 , wherein a width of the center bank of each of the pair of the first louvre columns and a width of the center bank of each of the pair of the second louvre columns do not to overlap each other in the width direction of the fin.

Assignees

• Halla Visteon Climate Control
• Hanon Systems

Inventors

• Han Ji Hun
• Kim Jae Yong
• Kim Hyuk
• Min Eun Gi
• Jeon Seong-Oh
• Jeong Sun An

Classifications

• F28D2021/0094

  for recooling the engine coolant · CPC title

• F28F1/022

  with multiple channels · CPC title

• F28F1/128

  Fins with openings, e.g. louvered fins · CPC title

• F28F1/325

  Fins with openings · CPC title

• F28D1/0233 Primary

  with air flow channels · CPC title