Fin assembly for heat exchanger and heat exchanger having the fin assembly

1. A fin assembly for a heat exchanger, the fin assembly comprising:

a plurality of fins each having a corrugated fin body formed by a plate, the plurality of fins arranged side by side in a width direction of the fin assembly,

wherein wave crests or wave troughs, on one side in a height direction of the fin assembly, of two adjacent ones of the plurality of fins are staggered by a predetermined distance relative to each other in a length direction of the fin assembly;

the fin assembly further comprising a connection part, the connection part arranged between the two adjacent fins to connect the two adjacent fins;

wherein each said fin body has a top defining the wave crest, a bottom defining the wave trough, and a middle extending between the top and the bottom and inclined to the length direction of the fin assembly, and

the connection part is integrated with the middles of the two adjacent fins, and is in a position where the middles of the two adjacent fins intersect.

2. A fin assembly for a heat exchanger, the fin assembly comprising:

a plurality of fins each having a corrugated fin body formed by a plate, the plurality of fins arranged side by side in a width direction of the fin assembly,

wherein wave crests or wave troughs, on one side in a height direction of the fin assembly, of two adjacent ones of the plurality of fins are staggered by a predetermined distance relative to each other in a length direction of the fin assembly; and

wherein assuming that the plurality of fins are respectively numbered 1st to Nth from one to the other of outmost fins of the plurality of fins, distances by which the wave crests or the wave troughs, on the one side in the height direction of the fin assembly, of the 2nd to Nth fins are staggered relative to the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the 1st fin in the length direction of the fin assembly are gradually increased by a predetermined increment.

3. The fin assembly for the heat exchanger according to claim 2 , wherein

the predetermined increment is substantially a constant.

4. A fin assembly for a heat exchanger, the fin assembly comprising:

a plurality of fins each having a corrugated fin body formed by a plate, the plurality of fins arranged side by side in a width direction of the fin assembly;

wherein wave crests or wave troughs, on one side in a height direction of the fin assembly, of two adjacent ones of the plurality of fins are staggered by a predetermined distance relative to each other in a length direction of the fin assembly;

the fin assembly further comprising a connection part, the connection part arranged between the two adjacent fins to connect the two adjacent fins;

wherein each said fin body has a top defining the wave crest, a bottom defining the wave trough, and a middle extending between the top and the bottom; and

wherein the connection part is integrated with the middles of the two adjacent fins.

5. The fin assembly for the heat exchanger according to claim 4 ,

wherein in a section perpendicular to the height direction of the fin assembly, a surface of the fin body of at least one of the plurality of fins is inclined to the width direction of the fin assembly.

6. The fin assembly for the heat exchanger according to claim 4 , wherein

the two adjacent fins are connected to each other.

7. The fin assembly for the heat exchanger according to claim 4 , wherein

the plurality of fins are integrated.

8. The fin assembly for the heat exchanger according to claim 4 , wherein

the plurality of fins are formed out of the single plate.

9. The fin assembly for the heat exchanger according to claim 4 , wherein

the connection part is arranged at an intermediate part of the middle in the height direction of the fin assembly.

10. The fin assembly for the heat exchanger according to claim 4 , wherein

the wave crest, on the one side in the height direction of the fin assembly, of one of the two adjacent fins and a wave trough, on the other side in the height direction of the fin assembly, of the other of the two adjacent fins are substantially arranged at the same position in the length direction of the fin assembly.

11. The fin assembly for the heat exchanger according to claim 4 , wherein

assuming that the plurality of fins are respectively numbered 1st to Nth from one to the other of outmost fins of the plurality of fins, and an average of distances between adjacent ones of the wave crests, on the one side in the height direction of the fin assembly, of the fin assembly is A, a distance by which the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the nth fin is staggered relative to the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the 1st fin in the length direction of the fin assembly is substantially

1

-

(

-

1

)

(

n

+

1

)

2

×

(

A

2

)

+

(

n

-

1

)

×

A

N

,

where n is a natural number that is greater than or equal to 2 and that is less than or equal to N.

12. The fin assembly for the heat exchanger according to claim 4 , wherein

at least two of the plurality of fins have different widths from each other.

13. The fin assembly for the heat exchanger according to claim 4 , wherein

at least one of the plurality of fins is provided with a louver.

14. The fin assembly for the heat exchanger according to claim 4 , wherein

in the section perpendicular to the height direction of the fin assembly, surfaces of the fin bodies of at least some of the plurality of fins are inclined to the width direction of the fin assembly towards a same side in the length direction of the fin assembly.

15. The fin assembly for the heat exchanger according to claim 4 , wherein

in the section perpendicular to the height direction of the fin assembly, a surface of the fin body of at least one, on one side in the width direction of the fin assembly, of the plurality of fins is inclined to the width direction of the fin assembly towards one side in the length direction of the fin assembly, while a surface of the fin body of at least one, on an other side in the width direction of the fin assembly, of the plurality of fins is inclined to the width direction of the fin assembly towards an other side in the length direction of the fin assembly.

16. The fin assembly for the heat exchanger according to claim 4 , wherein

in the section perpendicular to the height direction of the fin assembly, a surface of the fin body of one of the two adjacent fins is inclined to the width direction of the fin assembly towards one side in the length direction of the fin assembly, while a surface of the fin body of the other of the two adjacent fins is inclined to the width direction of the fin assembly towards the other side in the length direction of the fin assembly.

17. The fin assembly for the heat exchanger according to claim 4 , wherein

assuming that the plurality of fins are respectively numbered 1st to Nth from one to the other of outmost fins of the plurality of fins, a distance by which the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the ith fin is staggered relative to the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the 1st fin in the length direction of the fin assembly is gradually increased by a predetermined increment, and the wave crest, on the one side in the height direction of the fin assembly, of one of the j-1th and jth fins and a wave trough, on the other side in the height direction of the fin assembly, of the other of the j-1th and jth fins are substantially arranged at the same position in the length direction of the fin assembly, where i is an odd number that is greater than or equal to 3 and that is less than or equal to N, while j is an even number that is greater than or equal to 2 and that is less than or equal to N.

18. The fin assembly for the heat exchanger according to claim 17 , wherein

the predetermined increment is substantially a constant.

19. The fin assembly for the heat exchanger according to claim 4 , wherein

assuming that the plurality of fins are respectively numbered 1st to Nth from one to the other of outmost fins of the plurality of fins, the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the ith fin is staggered by a preset distance relative to the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the 1st fin in the length direction of the fin assembly, and the wave crest, on the one side in the height direction of the fin assembly, of one of the j-1th and jth fins and a wave trough, on the other side in the height direction of the fin assembly, of the other of the j-1th and jth fins are substantially arranged at the same position in the length direction of the fin assembly, where i is an odd number that is greater than or equal to 3 and that is less than or equal to N, while j is an even number that is greater than or equal to 2 and that is less than or equal to N.

20. The fin assembly for the heat exchanger according to claim 19 , wherein

the distance by which the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the ith fin is staggered relative to the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the 1st fin in the length direction of the fin assembly is

(

i

-

1

)

×

A

N

,

where A is an average of distances between adjacent ones of the wave crests, on the one side in the height direction of the fin assembly, of the fin assembly.

21. The fin assembly for the heat exchanger according to claim 4 , wherein

the wave crests or the wave troughs, on the one side in the height direction of the fin assembly, of all of the plurality of fins are staggered by the predetermined distances relative to one another in the length direction of the fin assembly.

22. The fin assembly for the heat exchanger according to claim 4 , wherein

projections of the wave crests or the wave troughs, on the one side in the height direction of the fin assembly, of all of the plurality of fins on a plane defined by the height direction and the length direction of the fin assembly are arranged at substantially equal intervals in the length direction of the fin assembly.

23. The fin assembly for the heat exchanger according to claim 4 , wherein

at least one of the plurality of fins is provided with no louver.

24. The fin assembly for the heat exchanger according to claim 4 , wherein

the plurality of fins are three or more fins.

25. The fin assembly for the heat exchanger according to claim 4 , wherein

the fin has a sectional shape in a plane that is defined by the width direction of the fin assembly, and at least some of the plurality of fins have substantially the same sectional shape.

26. The fin assembly for the heat exchanger according to claim 4 , wherein

the fin has a sectional shape in a plane that is defined by the height direction and the length direction of the fin assembly, and at least some of the plurality of fins have substantially the same sectional shape.

27. A heat exchanger, comprising:

heat exchange tubes; and

the fin assemblies according to claim 4 which are disposed between the heat exchange tubes.

28. The fin assembly for the heat exchanger according to claim 4 , wherein assuming that the plurality of fins are respectively numbered 1st to Nth from one to the other of outmost fins of the plurality of fins, distances by which the wave crests or the wave troughs, on the one side in the height direction of the fin assembly, of the 2nd to Nth fins are staggered relative to the wave crest or the wave trough, on the one side in the height direction of the fin assembly, of the 1st fin in the length direction of the fin assembly are gradually increased by a predetermined increment.

29. The fin assembly for the heat exchanger according to claim 28 , wherein the predetermined increment is substantially a constant.