Heat exchanger and air conditioning system

Abstract

To disclose a heat exchanger and an air conditioning system having the heat exchanger.SOLUTION: The heat exchanger includes a plurality of fins and a row of heat exchange pipes. The fin includes a fin body and a plurality of columns of heat exchange pipe slots formed in the fin body. The column of heat exchange pipe slots includes a plurality of heat exchange pipe slots arranged in a first direction, the plurality of fins being arranged in a second direction perpendicular to the first direction, and the plurality of columns of heat exchange pipe slots being arranged in a third direction perpendicular to the first direction and the second direction. The row of heat exchange pipes is provided in the heat exchange pipe slots of the column of heat exchange pipe slots, and the row of heat exchange pipes comprises one heat exchange pipe or a plurality of heat exchange pipes. A length of at least one heat exchange pipe slot in the third direction is greater than a heat exchange pipe size of the row of heat exchange pipes inserted in the at least one heat exchange pipe slot in the third direction. Therefore, the performance of the heat exchanger and an air conditioning system can be improved.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE An embodiment of the present invention relates to a heat exchanger and an air conditioning system including the heat exchanger. [Background technology]

[0002] The heat exchanger includes a heat exchange pipe and a fin. The fin has a heat exchange pipe groove. The heat exchange pipe groove is open on one side of the heat exchanger. Alternatively, the heat exchange pipe groove is open. The heat exchange pipe is inserted into the heat exchange pipe groove of the fin. Summary of the Invention [Problem to be solved by the invention]

[0003] It is an object of embodiments of the present invention to provide a heat exchanger and an air conditioning system comprising the heat exchanger, which allows, for example, to improve the performance of the heat exchanger and the air conditioning system. [Means for solving the problem]

[0004] An embodiment of the present invention provides a heat exchanger including a plurality of fins. Each of the plurality of fins includes a fin body and a plurality of heat exchange pipe groove arrays formed in the fin body. Each of the plurality of heat exchange pipe groove arrays includes a plurality of heat exchange pipe grooves aligned along a first direction. The plurality of fins are aligned along a second direction perpendicular to the first direction. And, the plurality of heat exchange pipe groove arrays of each of the plurality of fins are aligned along a third direction perpendicular to the first direction and the second direction. At least two of the heat exchange pipe grooves of the plurality of heat exchange pipe groove arrays in at least one of the plurality of fins have different lengths in the third direction.

[0005] According to an embodiment of the present invention, among the plurality of heat exchange pipe groove rows in at least one of the plurality of fins, at least two of the plurality of heat exchange pipe grooves in at least one heat exchange pipe groove row have different lengths in a third direction.

[0006] According to an embodiment of the present invention, at least one heat exchange pipe groove among a plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the plurality of heat exchange pipe groove arrays in at least one fin among the plurality of fins, and at least one heat exchange pipe groove among a plurality of heat exchange pipe groove arrays in at least one other heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the plurality of heat exchange pipe groove arrays in the at least one fin among the plurality of fins, have different lengths in the third direction.

[0007] According to an embodiment of the present invention, the length in the third direction of at least one of the plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the plurality of heat exchange pipe groove arrays in at least one fin among the plurality of fins, is smaller than the length in the third direction of at least one of the plurality of heat exchange pipe grooves in at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the plurality of heat exchange pipe groove arrays in the at least one fin among the plurality of fins.

[0008] According to an embodiment of the present invention, the heat exchanger further includes a heat exchange pipe row provided in each of the heat exchange pipe grooves in each of the heat exchange pipe groove arrays. The heat exchange pipe row is composed of one heat exchange pipe or multiple heat exchange pipes. The length in the third direction of at least one of the multiple heat exchange pipe grooves in at least one of the multiple heat exchange pipe groove arrays in at least one of the multiple fins is larger than the size of the heat exchange pipe in the third direction of the heat exchange pipe row inserted therein. When the heat exchange pipe row is composed of one heat exchange pipe, the size of the heat exchange pipe is the size of the one heat exchange pipe in the third direction, and when the heat exchange pipe row is composed of multiple heat exchange pipes, the size of the heat exchange pipe is the sum of the sizes of the multiple heat exchange pipes in the third direction.

[0009] According to an embodiment of the present invention, the fin body of the fin is inclined relative to a plane defined by the first direction and the third direction.

[0010] According to an embodiment of the present invention, an included angle between a fin body of the fin and a plane defined by the first direction and the third direction is less than or equal to 45 degrees.

[0011] According to an embodiment of the present invention, among the plurality of heat exchange pipe groove rows in at least one of the plurality of fins, the plurality of heat exchange pipe grooves in at least one heat exchange pipe groove row include a plurality of first heat exchange pipe grooves and a plurality of second heat exchange pipe grooves. The length SL1 of the first heat exchange pipe groove and the length SL2 of the second heat exchange pipe groove satisfy the relationship SL2≧n*SL1, where n is a positive integer.

[0012] According to an embodiment of the present invention, n is 2 or more.

[0013] According to an embodiment of the present invention, the plurality of first heat exchange pipe grooves includes a plurality of first heat exchange pipe groove groups, each of the first heat exchange pipe groove groups includes at least one first heat exchange pipe groove. The plurality of second heat exchange pipe grooves includes a plurality of second heat exchange pipe groove groups, each of the second heat exchange pipe groove groups includes at least one second heat exchange pipe groove. The plurality of first heat exchange pipe groove groups and the plurality of second heat exchange pipe groove groups are alternately arranged in a first direction.

[0014] According to an embodiment of the present invention, among the plurality of heat exchange pipe groove arrays in at least one of the plurality of fins, the plurality of heat exchange pipe rows arranged in the plurality of heat exchange pipe grooves in the at least one heat exchange pipe groove array have the same number and / or the same size of heat exchange pipes.

[0015] According to an embodiment of the present invention, the spacing between the heat exchange pipe grooves of at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins, is different from the spacing between the heat exchange pipe grooves of at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins.

[0016] According to an embodiment of the present invention, the spacing between the heat exchange pipe grooves of at least one heat exchange pipe groove array, among the multiple heat exchange pipe groove arrays of the multiple fins, located on a first side in the third direction of the heat exchanger, is larger than the spacing between the heat exchange pipe grooves of at least another heat exchange pipe groove array, among the multiple heat exchange pipe groove arrays of the multiple fins, located on a second side opposite to the first side in the third direction of the heat exchanger.

[0017] According to an embodiment of the present invention, the spacing between the heat exchange pipe grooves of at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins, is approximately the same as the spacing between the heat exchange pipe grooves of at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins.

[0018] According to an embodiment of the present invention, the size of the heat exchange pipes of at least one of the multiple heat exchange pipe rows in the multiple heat exchange pipe grooves of at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins, is different from the size of the heat exchange pipes of at least one of the multiple heat exchange pipe rows in the multiple heat exchange pipe grooves of at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins.

[0019] According to an embodiment of the present invention, the size of the heat exchange pipes of at least one of the multiple heat exchange pipe rows in the multiple heat exchange pipe grooves of at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins, is smaller than the size of the heat exchange pipes of at least one of the multiple heat exchange pipe rows in the multiple heat exchange pipe grooves of at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins.

[0020] According to an embodiment of the present invention, the heat transfer efficiency between at least one heat exchange pipe of at least one heat exchange pipe row among a plurality of heat exchange pipe rows provided in a plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger among a plurality of heat exchange pipe groove arrays of a plurality of fins, or between at least one heat exchange pipe of the plurality of heat exchange pipes, and at least one of the plurality of fins, is lower than the heat transfer efficiency between at least one heat exchange pipe of at least one heat exchange pipe row among a plurality of heat exchange pipe rows provided in a plurality of heat exchange pipe grooves in another at least one heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger among a plurality of heat exchange pipe groove arrays of a plurality of fins, or between at least one heat exchange pipe of the plurality of heat exchange pipes, and at least one of the plurality of fins.

[0021] According to an embodiment of the present invention, the fin body of the plurality of fins includes a first fin body portion located on a first side in a third direction of the heat exchanger and a second fin body portion located on a second side opposite to the first side in the third direction of the heat exchanger. The fin includes a first louver provided on the first fin body portion and a second louver provided on the second fin body portion. The heat exchange efficiency of the first louver is lower than the heat exchange efficiency of the second louver.

[0022] According to an embodiment of the present invention, the number of the first louvers is less than the number of the second louvers, and / or the inclination angle of the first louvers relative to the first fin body portion is less than the inclination angle of the second louvers relative to the second fin body portion.

[0023] According to an embodiment of the present invention, a fin body of the plurality of fins includes a first fin body portion located on a first side in a third direction of the heat exchanger and a second fin body portion located on a second side opposite to the first side in the third direction of the heat exchanger, and the fin includes a second louver provided on the second fin body portion, but no louver is present on the first fin body portion.

[0024] According to an embodiment of the present invention, the size of the heat exchange pipe in the third direction is ≧6 mm and ≦20 mm.

[0025] According to an embodiment of the present invention, the structural parameters of one heat exchange pipe of at least one heat exchange pipe row among multiple heat exchange pipe rows provided in multiple heat exchange pipe grooves in at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger among multiple heat exchange pipe groove arrays of multiple fins, or at least one heat exchange pipe among the multiple heat exchange pipes, are different from the structural parameters of one heat exchange pipe of at least one heat exchange pipe row among multiple heat exchange pipe rows provided in multiple heat exchange pipe grooves in at least one other heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger among multiple heat exchange pipe groove arrays of multiple fins, or at least one heat exchange pipe among the multiple heat exchange pipes.

[0026] According to an embodiment of the present invention, the structural parameters include at least one of the size of the heat exchange pipe in a first direction, the number of holes in the heat exchange pipe, the diameter of the holes in the heat exchange pipe, and the thickness of the partitions between the holes in the heat exchange pipe.

[0027] According to an embodiment of the present invention, a plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array among a plurality of heat exchange pipe groove arrays in at least one of the plurality of fins, which is located on a first side in the third direction of the heat exchanger, and a plurality of heat exchange pipe grooves in at least another heat exchange pipe groove array among the plurality of heat exchange pipe groove arrays in the at least one fin among the plurality of fins, which is located on a second side opposite to the first side in the third direction of the heat exchanger, are arranged alternately in the first direction.

[0028] According to an embodiment of the present invention, at least one heat exchange pipe groove among the multiple heat exchange pipe groove rows of the multiple fins, which is located on a first side in the third direction of the heat exchanger, and at least one heat exchange pipe groove among the multiple heat exchange pipe groove rows of the multiple fins, which is located on a second side opposite the first side in the third direction of the heat exchanger, are staggered in the first direction and partially overlap when viewed in the first direction.

[0029] According to an embodiment of the present invention, the heat exchange pipe grooves in the heat exchange pipe groove array of the fin have a first groove edge and a second groove edge, the first groove edge and the second groove edge being located at the outermost sides of the heat exchange pipe grooves in the third direction, the first groove edge of the heat exchange pipe grooves in the fin is closer to a first side of the heat exchanger in the third direction than the second groove edge of the heat exchange pipe grooves in the fin, and the first groove edges of the heat exchange pipe grooves in at least one heat exchange pipe groove array of the plurality of fins are substantially aligned with each other in the third direction, and / or the second groove edges of the heat exchange pipe grooves in the at least one heat exchange pipe groove array of the plurality of fins are substantially aligned with each other in the third direction.

[0030] According to an embodiment of the present invention, the heat exchange pipe grooves in at least one of the heat exchange pipe groove rows of the fins have approximately the same size in the third direction.

[0031] According to an embodiment of the present invention, the fin body of the fin has a generally flat plate shape.

[0032] According to an embodiment of the present invention, the multiple heat exchange pipe groove arrays of the multiple fins include a first heat exchange pipe groove array and a second heat exchange pipe groove array respectively located on a first side and a second side of the heat exchanger opposite each other in a third direction.

[0033] According to an embodiment of the present invention, the heat exchange pipe grooves in the first heat exchange pipe groove row of the fins open toward a first side of the heat exchanger, and the heat exchange pipe grooves in the second heat exchange pipe groove row of the fins open toward a second side of the heat exchanger.

[0034] According to an embodiment of the present invention, the heat exchange pipe grooves in the heat exchange pipe groove array of the fin have a first groove edge and a second groove edge, the first groove edge and the second groove edge being located at the outermost sides of the heat exchange pipe grooves in the third direction, the first groove edge of the heat exchange pipe grooves of the fin is closer to a first side of the heat exchanger in the third direction than the second groove edge of the heat exchange pipe grooves of the fin in the third direction, the second groove edges of at least two of the heat exchange pipe grooves in the first heat exchange pipe groove array of the fins are staggered in the third direction, and / or the first groove edges of at least two of the heat exchange pipe grooves in the second heat exchange pipe groove array of the fins are staggered in the third direction.

[0035] According to an embodiment of the present invention, at least one of the heat exchange pipe grooves in the first heat exchange pipe groove row of the multiple fins and at least one of the heat exchange pipe grooves in the second heat exchange pipe groove row of the multiple fins are staggered in a first direction.

[0036] According to an embodiment of the present invention, at least one of the plurality of heat exchange pipe grooves in a first heat exchange pipe groove row of the plurality of fins and at least one of the plurality of heat exchange pipe grooves in a second heat exchange pipe groove row of the plurality of fins are substantially aligned with each other in a first direction.

[0037] According to an embodiment of the present invention, the plurality of heat exchange pipe grooves in the first heat exchange pipe groove array of the plurality of fins includes a plurality of first heat exchange pipe grooves and a plurality of second heat exchange pipe grooves. A length of the first heat exchange pipe groove of the first heat exchange pipe groove array is smaller than a length of the second heat exchange pipe groove of the first heat exchange pipe groove array. The plurality of heat exchange pipe grooves in the second heat exchange pipe groove array of the plurality of fins includes a plurality of first heat exchange pipe grooves and a plurality of second heat exchange pipe grooves. A length of the first heat exchange pipe groove of the second heat exchange pipe groove array is smaller than a length of the second heat exchange pipe groove of the second heat exchange pipe groove array. At least one of the plurality of first heat exchange pipe grooves in the first heat exchange pipe groove array of the plurality of fins and at least one of the plurality of second heat exchange pipe grooves in the second heat exchange pipe groove array of the plurality of fins are substantially aligned with each other in a first direction.

[0038] According to an embodiment of the present invention, the heat exchange pipe grooves in the first heat exchange pipe groove row of the plurality of fins are substantially aligned with each other in the third direction, and / or the heat exchange pipe grooves in the second heat exchange pipe groove row of the plurality of fins are substantially aligned with each other in the third direction.

[0039] According to an embodiment of the present invention, the heat exchange pipe grooves in the heat exchange pipe groove array of the fin have a first groove edge and a second groove edge, the first groove edge and the second groove edge being located at the outermost sides of the heat exchange pipe grooves in the third direction, the first groove edge of the heat exchange pipe grooves of the fin is closer to a first side of the heat exchanger in the third direction than the second groove edge of the heat exchange pipe grooves of the fin in the third direction, the second groove edges of the heat exchange pipe grooves in the first heat exchange pipe groove array of the plurality of fins are substantially aligned with each other in the third direction, and / or the first groove edges of the heat exchange pipe grooves in the second heat exchange pipe groove array of the plurality of fins are substantially aligned with each other in the third direction.

[0040] According to an embodiment of the present invention, the heat exchanger further includes a heat exchange pipe row provided in each of the heat exchange pipe grooves of the plurality of heat exchange pipe grooves in each of the plurality of heat exchange pipe groove arrays. The heat exchange pipe row is composed of one heat exchange pipe or a plurality of heat exchange pipes. The length in the third direction of at least one of the plurality of heat exchange pipe grooves in the first heat exchange pipe groove array of at least one of the plurality of fins is larger than the size of the heat exchange pipe in the third direction of the heat exchange pipe row inserted therein. When the heat exchange pipe row is composed of one heat exchange pipe, the size of the heat exchange pipe is the size of the one heat exchange pipe in the third direction, and when the heat exchange pipe row is composed of multiple heat exchange pipes, the size of the heat exchange pipe is the sum of the sizes of the multiple heat exchange pipes in the third direction. And / or the length in the third direction of at least one of the plurality of heat exchange pipe grooves in the second heat exchange pipe groove array of the at least one of the plurality of fins is larger than the size of the heat exchange pipe in the third direction of the heat exchange pipe row inserted therein.

[0041] According to an embodiment of the present invention, the heat exchanger further includes a heat exchange pipe row provided in each of the heat exchange pipe grooves in each of the heat exchange pipe groove arrays. The heat exchange pipe row is composed of one heat exchange pipe or multiple heat exchange pipes. The length in the third direction of at least one of the multiple heat exchange pipe grooves in the first heat exchange pipe groove array of at least one of the multiple fins is approximately equal to the size of the heat exchange pipe in the third direction of the heat exchange pipe row inserted therein. When the heat exchange pipe row is composed of one heat exchange pipe, the size of the heat exchange pipe is the size of the one heat exchange pipe in the third direction, and when the heat exchange pipe row is composed of multiple heat exchange pipes, the size of the heat exchange pipe is the sum of the sizes of the multiple heat exchange pipes in the third direction. And / or the length in the third direction of at least one of the multiple heat exchange pipe grooves in the second heat exchange pipe groove array of the at least one of the multiple fins is approximately equal to the size of the heat exchange pipe in the third direction of the heat exchange pipe row inserted therein.

[0042] According to an embodiment of the present invention, the heat exchange pipes of the heat exchange pipe rows arranged in the heat exchange pipe grooves of the heat exchange pipe groove rows in the fins include a plurality of heat exchange pipe rows aligned in a third direction, and each heat exchange pipe row of the plurality of heat exchange pipe rows includes a plurality of heat exchange pipes aligned in the first direction.

[0043] According to an embodiment of the present invention, the heat exchange pipes in the rows of multiple heat exchange pipes include first ends located on one side of the heat exchange pipes in the second direction and second ends located on the other side of the heat exchange pipes in the second direction, and the heat exchanger further includes a first header pipe connected to the first ends of the heat exchange pipes and in fluid communication with each other, and a second header pipe connected to the second ends of the heat exchange pipes and in fluid communication with each other.

[0044] According to an embodiment of the present invention, the heat exchange pipes in the plurality of heat exchange pipe rows include a first end located on one side of the heat exchange pipe in the second direction and a second end located on the other side of the heat exchange pipe in the second direction. The heat exchanger further includes a first header pipe connected to the first end of the heat exchange pipe in the plurality of heat exchange pipe rows and in fluid communication with it, and two second header pipes. One of the two second header pipes is connected to the second end of the heat exchange pipe in at least one heat exchange pipe row among the plurality of heat exchange pipe rows and in fluid communication with it. The other of the two second header pipes is connected to the second end of the heat exchange pipe in at least another heat exchange pipe row among the plurality of heat exchange pipe rows and in fluid communication with it.

[0045] According to an embodiment of the present invention, the heat exchange pipes in the plurality of heat exchange pipe rows include a first end located on one side of the heat exchange pipe in the second direction and a second end located on the other side of the heat exchange pipe in the second direction. The heat exchanger further includes a connection portion that connects the first end of the heat exchange pipe in one heat exchange pipe row among the plurality of heat exchange pipe rows to the first end of the heat exchange pipe in another heat exchange pipe row among the plurality of heat exchange pipe rows and allows fluid communication therebetween, and two second header pipes. One of the two second header pipes is connected to the second end of the heat exchange pipe in the one heat exchange pipe row and allows fluid communication therebetween. The other of the two second header pipes is connected to the second end of the heat exchange pipe in the other heat exchange pipe row and allows fluid communication therebetween.

[0046] According to an embodiment of the present invention, the connection part is a plurality of connecting pipes, through which first ends of the heat exchange pipes in the one heat exchange pipe row are respectively connected to first ends of the heat exchange pipes in the other heat exchange pipe row and are in fluid communication with each other.

[0047] According to an embodiment of the present invention, the heat exchange pipes in one heat exchange pipe row, the connecting pipe, and the heat exchange pipes in another heat exchange pipe row, which are connected to each other, are formed by bending one pipe.

[0048] According to an embodiment of the present invention, the heat exchange pipes in the plurality of heat exchange pipe rows include a first end located on one side of the heat exchange pipe in the second direction and a second end located on the other side of the heat exchange pipe in the second direction. The heat exchanger further includes two first header pipes and two second header pipes. One of the two first header pipes and one of the two second header pipes are respectively connected to the first end and the second end of the heat exchange pipe in at least one heat exchange pipe row among the plurality of heat exchange pipe rows, and are in fluid communication with each other. The other of the two first header pipes and the other of the two second header pipes are respectively connected to the first end and the second end of the heat exchange pipe in at least another heat exchange pipe row among the plurality of heat exchange pipe rows, and are in fluid communication with each other.

[0049] According to an embodiment of the invention, in use, at least a portion of the heat exchange pipe extends substantially vertically.

[0050] According to an embodiment of the present invention, each of the at least some fins is formed from a single plate.

[0051] An embodiment of the present invention further provides an air conditioning system including the heat exchanger described above. Effect of the Invention

[0052] By using a heat exchanger according to an embodiment of the present invention and an air conditioning system including the heat exchanger, it is possible to improve the performance of the heat exchanger and the air conditioning system, for example. [Brief description of the drawings]

[0053] [Figure 1] FIG. 1 is a schematic front view of a heat exchanger according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic left side view of the heat exchanger shown in FIG. [Diagram 3] FIG. 3 is a schematic front view of a heat exchanger according to an embodiment of the present invention. [Figure 4] FIG. 4 is a schematic left side view of the heat exchanger shown in FIG. [Diagram 5] FIG. 5 is a schematic front view of a heat exchanger according to an embodiment of the present invention. [Figure 6] FIG. 6 is a schematic left side view of the heat exchanger shown in FIG. [Figure 7] FIG. 7 is a schematic plan view of fins of a heat exchanger according to an embodiment of the present invention. [Figure 8] FIG. 8 is a schematic plan view of fins of a heat exchanger according to an embodiment of the present invention. [Figure 9] FIG. 9 is a schematic plan view of fins of a heat exchanger according to an embodiment of the present invention. [Figure 10] FIG. 10 is a schematic plan view of fins of a heat exchanger according to an embodiment of the present invention. [Figure 11] FIG. 11 is a schematic plan view of fins of a heat exchanger according to an embodiment of the present invention. [Figure 12] FIG. 12 is a schematic plan view of fins of a heat exchanger according to an embodiment of the present invention. [Figure 13] FIG. 13 is a schematic front view of the fins of the heat exchanger shown in FIG. [Figure 14] FIG. 14 is a schematic plan view of fins of a heat exchanger according to an embodiment of the present invention. [Figure 15] FIG. 15 is a schematic front view of the fins of the heat exchanger shown in FIG. [Figure 16] FIG. 16 is a schematic plan view showing the relationship between the fins and heat exchange pipes of a heat exchanger according to an embodiment of the present invention. [Figure 17] FIG. 17 is a schematic plan view showing the relationship between the fins and heat exchange pipes of a heat exchanger according to an embodiment of the present invention. [Figure 18]FIG. 18 is a schematic plan view showing the relationship between the fins and heat exchange pipes of a heat exchanger according to an embodiment of the present invention. [Figure 19] FIG. 19 is a schematic plan view showing the relationship between the fins and heat exchange pipes of a heat exchanger according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0054] The present invention will be further described below in combination with the drawings and specific embodiments.

[0055] 1 to 19, a heat exchanger 100 according to an embodiment of the present invention includes a plurality of fins 2. Each of the plurality of fins 2 includes a fin body 20 and a plurality of heat exchange pipe groove rows formed in the fin body 20. For example, FIGS. 7 to 12, 14, and 16 to 19 show a first heat exchange pipe groove row including a plurality of heat exchange pipe grooves 21A and a second heat exchange pipe groove row including a plurality of heat exchange pipe grooves 21B. The first heat exchange pipe groove row and the second heat exchange pipe groove row are located on the first side S1 and the second side S2 of the heat exchanger 100, respectively, which face each other in the third direction D3. The fin 2 may include three or more heat exchange pipe groove rows. The fin body 20 of the fin 2 may have a substantially flat plate shape. Each of the plurality of heat exchange pipe groove rows includes a plurality of heat exchange pipe grooves 21 aligned along the first direction D1. The plurality of fins 2 are aligned along a second direction D2 perpendicular to the first direction D1. The heat exchange pipe groove rows of each of the fins 2 are aligned along a third direction D3 perpendicular to the first direction D1 and the second direction D2. At least two of the heat exchange pipe grooves 21 of the heat exchange pipe groove rows in at least one of the fins 2 have different lengths in the third direction D3.

[0056] Referring to Figures 7, 8, 9, 12, 14, 16 and 17, in some embodiments of the present invention, at least two of the heat exchange pipe grooves 21 in at least one heat exchange pipe groove row among the multiple heat exchange pipe groove rows in at least one fin 2 among the multiple fins 2 have different lengths in the third direction D3.

[0057] 10, 11, 18 and 19, in some other embodiments of the present invention, at least one heat exchange pipe groove 21 among the multiple heat exchange pipe groove rows in at least one fin 2 among the multiple fins 2, which is located on a first side S1 in the third direction D3 of the heat exchanger 100, and at least one heat exchange pipe groove 21 among the multiple heat exchange pipe groove rows in the at least one fin 2 among the multiple fins 2, which is located on a second side S2 opposite the first side S1 in the third direction D3 of the heat exchanger 100, have different lengths in the third direction D3. For example, the length in the third direction D3 of at least one of the heat exchange pipe grooves 21 in at least one heat exchange pipe groove array located on a first side S1 in the third direction D3 of the heat exchanger 100, among the multiple heat exchange pipe groove arrays in at least one fin 2 among the multiple fins 2, is smaller than the length in the third direction D3 of at least one of the heat exchange pipe groove arrays in another at least one heat exchange pipe groove array located on a second side S2 opposite the first side S1 in the third direction D3 of the heat exchanger 100, among the multiple heat exchange pipe groove arrays in the at least one fin 2 among the multiple fins 2.

[0058] 10, 11, 18, and 19, in the embodiment of the present invention, the heat exchange pipe grooves 21 in the heat exchange pipe groove array of the fin 2 have a first groove edge 211 and a second groove edge 212. The first groove edge 211 and the second groove edge 212 are located on the outermost sides of the heat exchange pipe groove 21 in the third direction D3. In addition, in the third direction D3, the first groove edge 211 in the heat exchange pipe groove 21 of the fin 2 is closer to the first side S1 in the third direction D3 of the heat exchanger 100 than the second groove edge 212 in the heat exchange pipe groove 21 of the fin 2. The first groove edges 211 of the heat exchange pipe grooves 21 in at least one heat exchange pipe groove array among the heat exchange pipe groove arrays of the fins 2 are substantially aligned with each other in the third direction D3. And / or, the second groove edges 212 of the heat exchange pipe grooves 21 in the at least one heat exchange pipe groove array among the heat exchange pipe groove arrays of the fins 2 are substantially aligned with each other in the third direction D3. The heat exchange pipe grooves 21 in the at least one heat exchange pipe groove array among the heat exchange pipe groove arrays of the fins 2 may have substantially the same size in the third direction D3.

[0059] 16 to 19, in the embodiment of the present invention, the heat exchanger 100 further includes a heat exchange pipe row provided in each of the heat exchange pipe grooves 21 in each of the heat exchange pipe groove rows among the plurality of heat exchange pipe groove rows. The heat exchange pipe row is composed of one heat exchange pipe 1 or a plurality of heat exchange pipes 1. With reference to Figs. 16, 18, and 19, the length in the third direction D3 of at least one heat exchange pipe groove 21 in at least one heat exchange pipe groove row among the plurality of heat exchange pipe groove rows in at least one fin 2 among the plurality of fins 2 is larger than the size of the heat exchange pipe in the third direction D3 of the heat exchange pipe row inserted therein. When the heat exchange pipe row is composed of one heat exchange pipe 1, the size of the heat exchange pipe is the size of the one heat exchange pipe 1 in the third direction D3. On the other hand, when the heat exchange pipe row is composed of a plurality of heat exchange pipes 1, the size of the heat exchange pipe is the sum of the sizes of the plurality of heat exchange pipes 1 in the third direction D3. According to the embodiment of the present invention, the temperature field in different regions in the third direction of the heat exchanger can be flexibly controlled, which is convenient for optimizing the heat exchange efficiency. It is also possible to adjust the amount of condensed water generated in different regions in the third direction of the heat exchanger. In addition, it is also possible to form a gap 5 for passing water in the heat exchange pipe groove 21. For example, the gap 5 forms a drainage path through which defrost water can be quickly discharged, thereby improving the performance of the heat exchanger in frost conditions.

[0060] Heat exchange efficiency is a measure of the effectiveness of heat exchange between air and other fluid media when the air passes through a heat exchanger. The difference in temperature change is compared for the average temperature at the exhaust port before and after the air passes through the heat exchanger under the same predetermined atmospheric environment, dry bulb temperature, wet bulb temperature, atmospheric pressure, same fluid, same inlet temperature, and same flow rate. The greater the temperature change, the higher the heat exchange efficiency.

[0061] 7 to 9, 12, 14, 16, and 17, in an embodiment of the present invention, among a plurality of heat exchange pipe groove rows in at least one fin 2 among a plurality of fins 2, a plurality of heat exchange pipe grooves 21 in at least one heat exchange pipe groove row include a plurality of first heat exchange pipe grooves 21S and a plurality of second heat exchange pipe grooves 21L (reference numerals "21S" and "21L" are shown only in FIG. 7). The length SL1 of the first heat exchange pipe groove 21S and the length SL2 of the second heat exchange pipe groove 21L satisfy the relationship SL2≧n*SL1. Note that n is a positive integer. Also, n may be 2 or more. In one example of the present invention, the plurality of first heat exchange pipe grooves 21 include a plurality of first heat exchange pipe groove groups. Each first heat exchange pipe groove group includes at least one first heat exchange pipe groove 21S. Also, the plurality of second heat exchange pipe grooves 21 include a plurality of second heat exchange pipe groove groups. Each second heat exchange pipe groove group includes at least one second heat exchange pipe groove 21L. And, the first heat exchange pipe groove groups and the second heat exchange pipe groove groups are alternately arranged in the first direction D1. For example, each first heat exchange pipe groove group includes one first heat exchange pipe groove 21S, and each second heat exchange pipe groove group includes one second heat exchange pipe groove 21L. With reference to Figs. 16, 18 and 19, in an embodiment of the present invention, among the plurality of heat exchange pipe groove rows in at least one fin 2 among the plurality of fins 2, the plurality of heat exchange pipe rows provided in the plurality of heat exchange pipe grooves 21 in at least one heat exchange pipe groove row have the same number and / or the same size of heat exchange pipes 1. According to the example of the present invention, the size of the heat exchange pipe 1 in the third direction D3 is 6 mm or more and 20 mm or less. According to the embodiment of the present invention, when the heat exchange pipes 1 of the same width are used, the complexity of the production process can be reduced and the occurrence of errors can be reduced. It also allows for flexible control of the temperature field in different regions in the third direction of the heat exchanger.

[0062] 7 to 12, 14, and 16 to 19, in some embodiments of the present invention, the spacing between the heat exchange pipe grooves 21 in at least one heat exchange pipe groove row located on a first side S1 in the third direction D3 of the heat exchanger 100, among the multiple heat exchange pipe groove rows of the multiple fins 2, is approximately the same as the spacing between the heat exchange pipe grooves 21 in at least another heat exchange pipe groove row located on a second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100, among the multiple heat exchange pipe groove rows of the multiple fins 2. Also, referring to Figures 18 and 19, the size of the heat exchange pipes of at least one of the heat exchange pipe rows in the heat exchange pipe grooves 21 of at least one heat exchange pipe groove array located on the first side S1 in the third direction D3 of the heat exchanger 100, among the multiple heat exchange pipe groove arrays of the multiple fins 2, may be different from the size of the heat exchange pipes of at least one of the heat exchange pipe rows in the heat exchange pipe grooves 21 of at least another heat exchange pipe groove array located on the second side S2 opposite the first side S1 in the third direction D3 of the heat exchanger 100, among the multiple heat exchange pipe groove arrays of the multiple fins 2. For example, the size of the heat exchange pipes of at least one of the heat exchange pipe rows in the heat exchange pipe grooves 21 of the at least one heat exchange pipe groove array located on the first side S1 in the third direction D3 of the heat exchanger 100 among the multiple heat exchange pipe groove arrays of the multiple fins 2 is smaller than the size of the heat exchange pipes of at least one of the heat exchange pipe rows in the heat exchange pipe grooves 21 of the at least another heat exchange pipe groove array located on the second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100 among the multiple heat exchange pipe groove arrays of the multiple fins 2. By using heat exchange pipe grooves with the same intervals and heat exchange pipe rows with different sizes of heat exchange pipes, it is possible to flexibly control the temperature field in different regions in the third direction of the heat exchanger.Furthermore, the interval between the heat exchange pipe grooves 21 in at least one heat exchange pipe groove array located on a first side S1 in the third direction D3 of the heat exchanger 100 among the multiple heat exchange pipe groove arrays of the multiple fins 2 may be different from the interval between the heat exchange pipe grooves 21 in at least another heat exchange pipe groove array located on a second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100 among the multiple heat exchange pipe groove arrays of the multiple fins 2. For example, the interval between the heat exchange pipe grooves 21 in at least one heat exchange pipe groove array located on the first side S1 in the third direction D3 of the heat exchanger 100 among the multiple heat exchange pipe groove arrays of the multiple fins 2 is larger than the interval between the heat exchange pipe grooves 21 in at least another heat exchange pipe groove array located on a second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100 among the multiple heat exchange pipe groove arrays of the multiple fins 2. Providing heat exchange pipe grooves 21 with different spacings allows for flexible control of the temperature field in different regions in the third direction of the heat exchanger.

[0063] 1, 3, and 5, in an embodiment of the present invention, a plurality of fins 2 and a heat exchange pipe 1 of a heat exchange pipe row provided in a heat exchange pipe groove 21 of a plurality of heat exchange pipe groove rows in the plurality of fins 2 constitute a heat exchanger core 8. The heat exchanger core 8 includes a first core portion 81 and a second core portion 82. The first core portion 81 and the second core portion 82 are located on both sides of a plane perpendicular to a third direction D3 passing through the geometric center of the fin body 20. The first core portion 81 is located on a first side S1 in the third direction D3 of the heat exchanger 100, and the second core portion 82 is located on a second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100. The heat exchange efficiency of the first core portion 81 is lower than that of the second core portion 82. According to the embodiment of the present invention, when the first core portion 81 is on the windward side of the heat exchanger and the second core portion 82 is on the leeward side of the heat exchanger, by adjusting the heat exchange efficiency of the first core portion 81 and the second core portion 82, it is possible to balance the utilization efficiency of the first core portion 81 and also to fully utilize the second core portion 82. In addition, since the amount of condensed water generated in the first core portion 81 can potentially be reduced, the heat transfer resistance caused by the condensed water is reduced, and the overall heat exchange efficiency of the heat exchanger is improved.

[0064] 1, 3, 5, 16 to 19, in an embodiment of the present invention, the heat transfer efficiency between at least one heat exchange pipe 1 of at least one heat exchange pipe row among a plurality of heat exchange pipe grooves of a plurality of fins 2 provided in a plurality of heat exchange pipe grooves 21 in at least one heat exchange pipe groove array located on the first side S1 in the third direction D3 of the heat exchanger 100, or at least one heat exchange pipe 1 of the plurality of heat exchange pipes 1, and at least one of the plurality of fins 2, is lower than the heat transfer efficiency between at least one heat exchange pipe 1 of at least one heat exchange pipe row among a plurality of heat exchange pipe grooves of a plurality of fins 2 provided in a plurality of heat exchange pipe grooves 21 in another at least one heat exchange pipe groove array located on the second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100, or at least one heat exchange pipe 1 of the plurality of heat exchange pipes 1, and at least one of the plurality of fins 2. According to one example of the present invention, referring to Figs. 14 and 15, the fin body 20 of the plurality of fins 2 includes a first fin body portion 20A located on a first side S1 in the third direction D3 of the heat exchanger 100, and a second fin body portion 20B located on a second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100. The first fin body portion 20A and the second fin body portion 20B may have a substantially flat plate shape. The fin 2 includes a first louver 22A provided on the first fin body portion 20A, and a second louver 22B provided on the second fin body portion 20B. The heat exchange efficiency of the first louver 22A is lower than that of the second louver 22B. The number of the first louvers 22A may be less than the number of the second louvers 22B. And / or, the inclination angle of first louvers 22A relative to first fin main body portion 20A is smaller than the inclination angle of second louvers 22B relative to second fin main body portion 20B. For example, referring to Fig. 15, the spacing between first louvers 22A is 3 mm, and the inclination angle of first louvers 22A relative to first fin main body portion 20A is 25 degrees. Furthermore, the spacing between second louvers 22B is 2 mm, and the inclination angle of second louvers 22B relative to second fin main body portion 20B is 30 degrees.12 and 13, according to another example of the present invention, the fin body 20 of the plurality of fins 2 includes a first fin body portion 20A located on a first side S1 in the third direction D3 of the heat exchanger 100 and a second fin body portion 20B located on a second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100. The fin 2 includes a second louver 22B provided on the second fin body portion 20B, but no louver is present on the first fin body portion 20A. According to an embodiment of the present invention, it is possible to flexibly control the temperature field in different regions in the third direction of the heat exchanger.

[0065] 17 and 19, in an embodiment of the present invention, the structural parameters of the one heat exchange pipe 1 of at least one heat exchange pipe row among a plurality of heat exchange pipe grooves 21 in at least one heat exchange pipe groove array located on a first side S1 in the third direction D3 of the heat exchanger 100 among a plurality of heat exchange pipe groove arrays of a plurality of fins 2, or at least one heat exchange pipe 1 of the plurality of heat exchange pipes 1, are different from the structural parameters of the one heat exchange pipe 1 of at least one heat exchange pipe row among a plurality of heat exchange pipe grooves 21 in another at least one heat exchange pipe groove array located on a second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100 among a plurality of heat exchange pipe groove arrays of a plurality of fins 2, or at least one heat exchange pipe 1 of the plurality of heat exchange pipes 1. The structural parameters may include at least one of the size of the heat exchange pipe 1 in the first direction D1, the number of holes in the heat exchange pipe 1, the diameter of the holes in the heat exchange pipe 1, and the thickness of the partitions between the holes in the heat exchange pipe 1.

[0066] 7, 8, 10 to 12, 14, and 16 to 19, in an embodiment of the present invention, a plurality of heat exchange pipe grooves 21 in at least one heat exchange pipe groove row among the plurality of heat exchange pipe groove rows in at least one fin 2 of the plurality of fins 2, which is located on a first side S1 in the third direction D3 of the heat exchanger 100, and a plurality of heat exchange pipe grooves 21 in at least another heat exchange pipe groove row among the plurality of heat exchange pipe groove rows in the at least one fin 2 of the plurality of fins 2, which is located on a second side S2 opposite the first side S1 in the third direction D3 of the heat exchanger 100, are arranged alternately in the first direction D1. Referring to Figure 11, according to an example of the present invention, at least one heat exchange pipe groove 21 among the multiple heat exchange pipe groove rows of the multiple fins 2, in at least one heat exchange pipe groove row located on a first side S1 in the third direction D3 of the heat exchanger 100, and at least one heat exchange pipe groove 21 among the multiple heat exchange pipe groove rows of the multiple fins 2, in at least another heat exchange pipe groove row located on a second side S2 opposite the first side S1 in the third direction D3 of the heat exchanger 100, are staggered in the first direction D1 and partially overlap when viewed in the first direction D1.

[0067] 7 to 12, 14, 16 to 19, in an embodiment of the present invention, the heat exchange pipe groove arrays of the fins 2 include a first heat exchange pipe groove array and a second heat exchange pipe groove array located on the first side S1 and the second side S2 of the heat exchanger 100, respectively, which face each other in the third direction D3. The heat exchange pipe grooves 21A in the first heat exchange pipe groove array of the fins 2 open toward the first side S1 of the heat exchanger 100, and the heat exchange pipe grooves 21B in the second heat exchange pipe groove array of the fins 2 open toward the second side S2 of the heat exchanger 100. The heat exchange pipe grooves 21 of the fins 2 may be closed heat exchange pipe grooves without any openings.

[0068] 7 to 9, 12, 14, 16 and 17, in the embodiment of the present invention, the second groove edges 212 of at least two of the heat exchange pipe grooves 21A in the first heat exchange pipe groove array of the fins 2 are staggered in the third direction D3. And / or the first groove edges 211 of at least two of the heat exchange pipe grooves 21B in the second heat exchange pipe groove array of the fins 2 are staggered in the third direction D3. 7, 8, 10 to 12, 14, 16 to 19, at least one of the heat exchange pipe grooves 21A in the first heat exchange pipe groove array of the fins 2 and at least one of the heat exchange pipe grooves 21B in the second heat exchange pipe groove array of the fins 2 are staggered in the first direction D1. 9, at least one of the heat exchange pipe grooves 21A in the first heat exchange pipe groove row of the fins 2 and at least one of the heat exchange pipe grooves 21B in the second heat exchange pipe groove row of the fins 2 are substantially aligned with each other in the first direction D1. According to the embodiment of the present invention, the groove edges of the heat exchange pipe grooves are staggered in the third direction D3 and the heat exchange pipe grooves are staggered in the first direction D1, which shortens the flow path for discharging the condensed water, which is advantageous for the rapid discharge of the condensed water and the reduction of the air resistance. In addition, it is also possible to adjust the amount of condensed water caused by condensation.

[0069] Referring to FIG. 7, in the example of the present invention, the heat exchange pipe grooves 21 in the first heat exchange pipe groove array of the fins 2 include a plurality of first heat exchange pipe grooves 21S and a plurality of second heat exchange pipe grooves 21L. The length of the first heat exchange pipe groove 21S in the first heat exchange pipe groove array is smaller than the length of the second heat exchange pipe groove 21L in the first heat exchange pipe groove array. In addition, the heat exchange pipe grooves 21B in the second heat exchange pipe groove array of the fins 2 include a plurality of first heat exchange pipe grooves 21S and a plurality of second heat exchange pipe grooves 21L. The length of the first heat exchange pipe groove 21S in the second heat exchange pipe groove array is smaller than the length of the second heat exchange pipe groove 21L in the second heat exchange pipe groove array. In addition, at least one of the first heat exchange pipe grooves 21S in the first heat exchange pipe groove array of the fins 2 and at least one of the second heat exchange pipe grooves 21L in the second heat exchange pipe groove array of the fins 2 are substantially aligned with each other in the first direction D1.

[0070] 10, 11, 18 and 19, in an embodiment of the present invention, the heat exchange pipe grooves 21A in the first heat exchange pipe groove array of the fins 2 are substantially aligned with each other in the third direction D3. And / or the heat exchange pipe grooves 21B in the second heat exchange pipe groove array of the fins 2 are substantially aligned with each other in the third direction D3. For example, the second groove edges 212 of the heat exchange pipe grooves 21A in the first heat exchange pipe groove array of the fins 2 are substantially aligned with each other in the third direction D3. And / or the first groove edges 211 of the heat exchange pipe grooves 21B in the second heat exchange pipe groove array of the fins 2 are substantially aligned with each other in the third direction D3.

[0071] 16, 18, and 19, in an embodiment of the present invention, the length in the third direction D3 of at least one heat exchange pipe groove 21 among the plurality of heat exchange pipe grooves 21A in the first heat exchange pipe groove array of at least one fin 2 among the plurality of fins 2 is greater than the size of the heat exchange pipe in the third direction D3 of the heat exchange pipe row inserted therein. And / or, the length in the third direction D3 of at least one heat exchange pipe groove 21 among the plurality of heat exchange pipe grooves 21B in the second heat exchange pipe groove array of the at least one fin 2 among the plurality of fins 2 is greater than the size of the heat exchange pipe in the third direction D3 of the heat exchange pipe row inserted therein. Also, with reference to Figs. 17, 18, and 19, in an embodiment of the present invention, the length in the third direction D3 of at least one heat exchange pipe groove 21 among the plurality of heat exchange pipe grooves 21A in the first heat exchange pipe groove array of at least one fin 2 among the plurality of fins 2 is approximately equal to the size of the heat exchange pipe in the third direction D3 of the heat exchange pipe row inserted therein. And / or, the length in the third direction D3 of at least one of the multiple heat exchange pipe grooves 21B in the second heat exchange pipe groove row of at least one of the multiple fins 2 is approximately equal to the size of the heat exchange pipe in the third direction D3 of the heat exchange pipe row inserted therein.

[0072] 1, 3, 5, 16 to 19, in the embodiment of the present invention, the heat exchange pipes 1 of the heat exchange pipe rows provided in the heat exchange pipe grooves 21 of the heat exchange pipe groove rows in the fins 2 include a plurality of heat exchange pipe rows aligned in the third direction D3. Each heat exchange pipe row among the plurality of heat exchange pipe rows includes a plurality of heat exchange pipes 1 aligned in the first direction D1. For example, the first heat exchange pipe row includes a plurality of heat exchange pipes 1A, the second heat exchange pipe row includes a plurality of heat exchange pipes 1B, the third heat exchange pipe row includes a plurality of heat exchange pipes 1C, the fourth heat exchange pipe row includes a plurality of heat exchange pipes 1D, and so on. With reference to FIG. 1, 3, and 5, in the embodiment of the present invention, the heat exchange pipes 1 in the plurality of heat exchange pipe rows include a first end 18 located on one side of the heat exchange pipes 1 in the second direction D2, and a second end 19 located on the other side of the heat exchange pipes 1 in the second direction D2. In one example, the heat exchanger 100 further includes a first header pipe 31 connected to the first end 18 of the heat exchange pipe 1 and in fluid communication with it, and a second header pipe 32 connected to the second end 19 of the heat exchange pipe 1 and in fluid communication with it. In another example, the heat exchanger 100 further includes the first header pipe 31 connected to the first end 18 of the heat exchange pipe 1 in the multiple heat exchange pipe rows and in fluid communication with it, and two second header pipes 32. One of the two second header pipes 32 is connected to the second end 19 of the heat exchange pipe 1 in at least one heat exchange pipe row among the multiple heat exchange pipe rows and in fluid communication with it. The other of the two second header pipes 32 is connected to the second end 19 of the heat exchange pipe 1 in at least another heat exchange pipe row among the multiple heat exchange pipe rows and in fluid communication with it. In yet another example, referring to Figures 5 and 6, the heat exchanger 100 further includes a connection portion 6 that connects a first end 18 of a heat exchange pipe 1 in one heat exchange pipe row among the multiple heat exchange pipe rows to a first end 18 of a heat exchange pipe 1 in another heat exchange pipe row among the multiple heat exchange pipe rows, and communicates fluid therebetween, and two second header pipes 32.One of the two second header pipes 32 is connected to the second end 19 of the heat exchange pipe 1 in the one heat exchange pipe row and is in fluid communication with the other of the two second header pipes 32 and is connected to the second end 19 of the heat exchange pipe 1 in the other heat exchange pipe row and is in fluid communication with the other. The connection unit 6 may be a plurality of connection pipes 60. The first end 18 of the heat exchange pipe 1 in the one heat exchange pipe row is connected to the first end 18 of the heat exchange pipe 1 in the other heat exchange pipe row via the plurality of connection pipes 60 and is in fluid communication with the other. The connection unit 6 connects the first end 18 of the heat exchange pipe 1 in the one heat exchange pipe row to the first end 18 of the heat exchange pipe 1 in the other heat exchange pipe row to communicate the fluid, but it is not necessary to connect the first end 18 of the heat exchange pipe 1 in the one heat exchange pipe row to the first end 18 of the heat exchange pipe 1 in the other heat exchange pipe row in a one-to-one correspondence to communicate the fluid. The heat exchange pipes 1 in the one heat exchange pipe row, the connecting pipe 60, and the heat exchange pipes 1 in the other heat exchange pipe row that are connected to each other may be formed by bending one pipe. In the example shown in Figs. 5 and 6, the first ends 18 of the heat exchange pipes 1 in two heat exchange pipe rows among the plurality of heat exchange pipe rows are connected to the first ends 18 of the heat exchange pipes 1 in the other two heat exchange pipe rows among the plurality of heat exchange pipe rows, respectively, and are in fluid communication with each other. In addition, one of the two second header pipes 32 is connected to the second ends 19 of the heat exchange pipes 1 in the two heat exchange pipe rows, and is in fluid communication with each other. In addition, the other of the two second header pipes 32 is connected to the second ends 19 of the heat exchange pipes 1 in the other two heat exchange pipe rows, and is in fluid communication with each other. In a further example, referring to Figs. 1 and 3, the heat exchanger 100 further includes two first header pipes 31 and two second header pipes 32. One of the two first header pipes 31 and one of the two second header pipes 32 are respectively connected to a first end 18 and a second end 19 of a heat exchange pipe 1 in at least one of the multiple heat exchange pipe rows, and are fluidly connected therebetween.Moreover, the other of the two first header pipes 31 and the other of the two second header pipes 32 are respectively connected to first ends 18 and second ends 19 of the heat exchange pipes 1 in at least one other heat exchange pipe row among the multiple heat exchange pipe rows, and are in fluid communication with each other. In the example shown in Figs. 1 and 3, each first header pipe 31 is connected to the first ends 18 of the heat exchange pipes 1 in two heat exchange pipe rows among the multiple heat exchange pipe rows, and is in fluid communication with each other. Moreover, each second header pipe 32 is connected to the second ends 19 of the heat exchange pipes 1 in two heat exchange pipe rows among the multiple heat exchange pipe rows, and is in fluid communication with each other.

[0073] With reference to Figs. 1 to 6, in the embodiment of the present invention, at least a part of the heat exchange pipe 1 extends substantially vertically during use. For example, the heat exchange pipe 1 extends substantially vertically. At least a part of the heat exchange pipe 1 may extend substantially horizontally or inclined. For example, the heat exchange pipe 1 may extend substantially horizontally or inclined. With reference to Figs. 1 to 19, in the embodiment of the present invention, each of at least some of the fins 2 is formed of a single plate. For example, the fin 2 is formed of a single plate. The fin body 20 of the fin 2 may be inclined with respect to a plane defined by the first direction D1 and the third direction D3. The included angle between the fin body 20 of the fin 2 and the plane defined by the first direction D1 and the third direction D3 may be 45 degrees or less. When the heat exchanger is used as an evaporator, condensed water is generated. Inclining the fin body 20 of the fin 2 is advantageous for smooth discharge of condensed water and reduction of air resistance.

[0074] In the example shown in Fig. 7, the heat exchange pipe grooves 21A in the first heat exchange pipe groove array open toward the first side S1 of the heat exchanger 100, and the heat exchange pipe grooves 21B in the second heat exchange pipe groove array open toward the second side S2 of the heat exchanger 100. The heat exchange pipe groove array includes heat exchange pipe grooves 21 of different lengths. The heat exchange pipe grooves 21A in the first heat exchange pipe groove array and the heat exchange pipe grooves 21B in the second heat exchange pipe groove array are staggered in the first direction D1. The intervals between the heat exchange pipe grooves 21A in the first heat exchange pipe groove array and the intervals between the heat exchange pipe grooves 21B in the second heat exchange pipe groove array are approximately the same.

[0075] In the examples shown in Figs. 7, 8 and 9, the plurality of first heat exchange pipe grooves 21 includes a plurality of first heat exchange pipe groove groups. Each of the first heat exchange pipe groove groups includes at least one first heat exchange pipe groove 21S (see Fig. 7). The plurality of second heat exchange pipe grooves 21 includes a plurality of second heat exchange pipe groove groups. Each of the second heat exchange pipe groove groups includes at least one second heat exchange pipe groove 21L (see Fig. 7). The plurality of first heat exchange pipe groove groups and the plurality of second heat exchange pipe groove groups are alternately arranged in the first direction D1. This allows the short first heat exchange pipe grooves 21S and the long second heat exchange pipe grooves 21L to be flexibly arranged according to specific heat exchange requirements.

[0076] 10 and 11, the heat exchange pipe grooves 21A in the first heat exchange pipe groove array have the same length, and the heat exchange pipe grooves 21B in the second heat exchange pipe groove array have the same length. However, the length of the heat exchange pipe grooves 21A is different from the length of the heat exchange pipe grooves 21B. In addition, the heat exchange pipe grooves 21A and the heat exchange pipe grooves 21B may partially overlap each other.

[0077] 16, the heat exchange pipe 1 has the same size (i.e., width Tw) in the third direction D3. The heat exchange pipe grooves 21A in the first heat exchange pipe groove array and the heat exchange pipe grooves 21B in the second heat exchange pipe groove array are staggered in the first direction D1. The length of some of the heat exchange pipe grooves 21 is greater than the size (i.e., width Tw) of the heat exchange pipe inserted therein in the third direction D3.

[0078] In the example shown in FIG. 17, the length of the heat exchange pipe groove 21 is equal to the size in the third direction D3 of the heat exchange pipe to be inserted therein (i.e., the width Tw) or the size of the heat exchange pipe in the third direction D3 of the heat exchange pipe row.

[0079] In the examples shown in Figs. 18 and 19, the length of the heat exchange pipe grooves 21A in the first heat exchange pipe groove array is equal to the size (i.e., width Tw) of the heat exchange pipe inserted therein in the third direction D3. The length of the heat exchange pipe grooves 21B in the second heat exchange pipe groove array is greater than the size of the heat exchange pipe in the third direction D3 of the heat exchange pipe row inserted therein. Some heat exchange pipe rows include a plurality of heat exchange pipes spaced apart from each other. In the example shown in Fig. 18, the heat exchange pipes in the heat exchange pipe grooves 21B in the second heat exchange pipe groove array have the same size in the third direction D3. In the example shown in Fig. 19, the heat exchange pipes in the heat exchange pipe grooves 21B in the second heat exchange pipe groove array have different sizes in the third direction D3.

[0080] In the embodiment of the present invention, the heat exchange pipe 1 may be a flat tube, or may be any heat exchange pipe having two planes that are approximately parallel to each other.

[0081] An air conditioning system according to an embodiment of the present invention includes the above-mentioned heat exchanger 100. More specifically, the air conditioning system includes a compressor, a condenser, an evaporator, an expansion valve, etc. At least one of the condenser and the evaporator may be the above-mentioned heat exchanger 100.

[0082] By using a heat exchanger according to an embodiment of the present invention and an air conditioning system including the heat exchanger, it is possible to improve the performance of the heat exchanger and the air conditioning system, for example.

[0083] According to the embodiment of the present invention, the temperature in different regions in the third direction of the heat exchanger can be flexibly adjusted, which can avoid the phenomenon that the windward side of the heat exchanger has an excessively high heat exchange efficiency, resulting in the condensation water concentrating on the windward side, and can also fully utilize the leeward side of the heat exchanger, which can not only effectively reduce the air resistance (because there is less accumulation of condensation water), but also balance the heat exchange efficiency between the windward side and the leeward side of the heat exchanger, thereby achieving the purpose of improving the overall efficiency of the heat exchanger.

[0084] In addition, according to the embodiment of the present invention, by using heat exchange pipe grooves with different lengths and heat exchange pipes with different widths, it is possible to very flexibly control the heat exchange efficiency of the heat exchange pipes on the windward side and the leeward side of the heat exchanger, and to improve the overall heat exchange performance. In addition, when the heat exchanger is applied as an evaporator, it is also possible to control the amount of condensed water generated in different heat exchange areas by adjusting the heat exchange. This is favorable for the uniform distribution of condensed water over the entire heat exchange surface, and the air resistance is reduced, so that the probability of condensed water being blown off the heat exchanger is reduced. Thus, the overall heat exchange performance is improved.

[0085] Although the above embodiments have been described, some features of the above embodiments and / or some features of the above embodiments may be combined to form a new embodiment. [Explanation of symbols]

[0086] 100 heat exchanger 1 Heat exchange pipe 18 First end 19 Second end 2 Fins 20 Fin body 20A First fin body 20B Second fin body part 21 Heat exchange pipe groove 21S First heat exchange pipe groove 21L Second heat exchange pipe groove 211 Margin of the first sulcus 212 Margin of the second sulcus 22A 1st Louver 22B 2nd louver 31 First header pipe 32 No. 2 header pipe 6 Connection 60 Connecting Pipe D1 1st direction D2 2nd direction D3 Third direction S1 First Side S2 Second side

Claims

1. the heat exchange pipe groove arrays include a plurality of fins, each of which includes a fin body and a plurality of heat exchange pipe groove arrays formed in the fin body, each of which includes a plurality of heat exchange pipe grooves aligned along a first direction, the plurality of fins are aligned along a second direction perpendicular to the first direction, and the plurality of heat exchange pipe groove arrays of each of the plurality of fins are aligned along a third direction perpendicular to the first direction and the second direction, A heat exchanger, wherein at least two of the heat exchange pipe grooves of the plurality of heat exchange pipe groove rows in at least one of the plurality of fins have different lengths in a third direction.

2. 2. The heat exchanger of claim 1, wherein at least two of the heat exchange pipe grooves of at least one of the plurality of heat exchange pipe groove rows in at least one of the plurality of fins have different lengths in the third direction.

3. 2. The heat exchanger of claim 1, wherein at least one heat exchange pipe groove of at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger among the multiple heat exchange pipe groove arrays in at least one fin among the multiple fins and at least one heat exchange pipe groove of at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger among the multiple heat exchange pipe groove arrays in the at least one fin among the multiple fins have different lengths in the third direction.

4. 2. The heat exchanger as described in claim 1, wherein the length in the third direction of at least one of the plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the plurality of heat exchange pipe groove arrays in at least one fin among the plurality of fins, is smaller than the length in the third direction of at least one of the plurality of heat exchange pipe grooves in at least one other heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the plurality of heat exchange pipe groove arrays in the at least one fin among the plurality of fins.

5. Furthermore, a heat exchange pipe row provided in each of a plurality of heat exchange pipe grooves in each of a plurality of heat exchange pipe groove arrays, the heat exchange pipe row being composed of one heat exchange pipe or a plurality of heat exchange pipes; 2. The heat exchanger of claim 1, wherein the length in the third direction of at least one heat exchange pipe groove of at least one heat exchange pipe groove array among multiple heat exchange pipe grooves in at least one of the multiple fins is greater than the size of a heat exchange pipe in the third direction of a heat exchange pipe row inserted therein, and when the heat exchange pipe row is composed of one heat exchange pipe, the size of the heat exchange pipe is the size of the one heat exchange pipe in the third direction, and when the heat exchange pipe row is composed of multiple heat exchange pipes, the size of the heat exchange pipe is the sum of the sizes of the multiple heat exchange pipes in the third direction.

6. 2. The heat exchanger according to claim 1, wherein the fin body of the fin is inclined with respect to a plane defined by the first direction and the third direction.

7. 7. The heat exchanger according to claim 6, wherein an included angle between a fin body of the fin and a plane defined by the first direction and the third direction is 45 degrees or less.

8. Among the plurality of heat exchange pipe groove rows in at least one of the plurality of fins, the plurality of heat exchange pipe grooves in the at least one heat exchange pipe groove row include a plurality of first heat exchange pipe grooves and a plurality of second heat exchange pipe grooves, and a length SL1 of the first heat exchange pipe grooves and a length SL2 of the second heat exchange pipe grooves satisfy a relationship of SL2≧n*SL1; 6. The heat exchanger of claim 5, wherein n is a positive integer.

9. 9. The heat exchanger according to claim 8, wherein n is 2 or more.

10. The plurality of first heat exchange pipe grooves includes a plurality of first heat exchange pipe groove groups, each of the first heat exchange pipe groove groups including at least one first heat exchange pipe groove; the plurality of second heat exchange pipe grooves includes a plurality of second heat exchange pipe groove groups, each of the second heat exchange pipe groove groups including at least one second heat exchange pipe groove; 10. The heat exchanger according to claim 8 or 9, wherein the first heat exchange pipe groove groups and the second heat exchange pipe groove groups are arranged alternately in the first direction.

11. 10. A heat exchanger as described in claim 8 or 9, wherein among the plurality of heat exchange pipe groove rows in the at least one fin among the plurality of fins, the plurality of heat exchange pipe rows provided in the plurality of heat exchange pipe grooves in the at least one heat exchange pipe groove row have the same number and / or the same size of heat exchange pipes.

12. A heat exchanger as described in claim 1 or 5, wherein the spacing between the heat exchange pipe grooves of at least one heat exchange pipe groove row among the multiple heat exchange pipe groove rows of the multiple fins, which is located on a first side in the third direction of the heat exchanger, is different from the spacing between the heat exchange pipe grooves of at least another heat exchange pipe groove row among the multiple heat exchange pipe groove rows of the multiple fins, which is located on a second side opposite the first side in the third direction of the heat exchanger.

13. A heat exchanger as described in claim 1 or 5, wherein the spacing between the heat exchange pipe grooves of at least one heat exchange pipe groove array, among the multiple heat exchange pipe groove arrays of the multiple fins, located on a first side in the third direction of the heat exchanger, is larger than the spacing between the heat exchange pipe grooves of at least another heat exchange pipe groove array, among the multiple heat exchange pipe groove arrays of the multiple fins, located on a second side opposite the first side in the third direction of the heat exchanger.

14. 6. A heat exchanger as described in claim 5, wherein the spacing between the heat exchange pipe grooves of at least one heat exchange pipe groove row among the multiple heat exchange pipe groove rows of the multiple fins, which is located on a first side in the third direction of the heat exchanger, is approximately the same as the spacing between the heat exchange pipe grooves of at least another heat exchange pipe groove row among the multiple heat exchange pipe groove rows of the multiple fins, which is located on a second side opposite the first side in the third direction of the heat exchanger.

15. 15. The heat exchanger of claim 14, wherein a size of the heat exchange pipes of at least one of a plurality of heat exchange pipe rows in a plurality of heat exchange pipe grooves of at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among a plurality of heat exchange pipe groove arrays of a plurality of fins, is different from a size of the heat exchange pipes of at least one of a plurality of heat exchange pipe rows in a plurality of heat exchange pipe grooves of at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among a plurality of heat exchange pipe groove arrays of a plurality of fins.

16. 15. The heat exchanger of claim 14, wherein the size of the heat exchange pipes of at least one of the heat exchange pipe rows in the heat exchange pipe grooves of the at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins, is smaller than the size of the heat exchange pipes of at least one of the heat exchange pipe rows in the heat exchange pipe grooves of the at least one other heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger, among the multiple heat exchange pipe groove arrays of the multiple fins.

17. 6. The heat exchanger according to claim 5, wherein a heat transfer efficiency between at least one heat exchange pipe of at least one heat exchange pipe row among a plurality of heat exchange pipe rows provided in a plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger among a plurality of heat exchange pipe groove arrays of the plurality of fins, or between at least one heat exchange pipe of the plurality of heat exchange pipes, and at least one of the plurality of fins, is lower than a heat transfer efficiency between at least one heat exchange pipe of at least one heat exchange pipe row among a plurality of heat exchange pipe rows provided in a plurality of heat exchange pipe grooves in at least another heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger among a plurality of heat exchange pipe groove arrays of the plurality of fins, or between at least one heat exchange pipe of the plurality of heat exchange pipes, and at least one of the plurality of fins.

18. 6. The heat exchanger according to claim 1, wherein the fin body of the plurality of fins includes a first fin body portion located on a first side in a third direction of the heat exchanger and a second fin body portion located on a second side opposite to the first side in the third direction of the heat exchanger, the fins include a first louver provided on the first fin body portion and a second louver provided on the second fin body portion, and a heat exchange efficiency of the first louver is lower than a heat exchange efficiency of the second louver.

19. the number of first louvers is less than the number of second louvers; and / or 20. The heat exchanger of claim 18, wherein an inclination angle of the first louvers relative to the first fin body portion is less than an inclination angle of the second louvers relative to the second fin body portion.

20. 6. The heat exchanger of claim 1, wherein the fin body of the plurality of fins includes a first fin body portion located on a first side in a third direction of the heat exchanger and a second fin body portion located on a second side opposite to the first side in the third direction of the heat exchanger, and the fin includes a second louver provided on the second fin body portion, but no louver is present on the first fin body portion.

21. 6. The heat exchanger according to claim 5, wherein the size of the heat exchange pipe in the third direction is 6 mm or more and 20 mm or less.

22. 6. The heat exchanger according to claim 5, wherein a structural parameter of the one heat exchange pipe of at least one heat exchange pipe row among a plurality of heat exchange pipe rows provided in a plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array located on a first side in the third direction of the heat exchanger among a plurality of heat exchange pipe groove arrays of a plurality of fins, or at least one heat exchange pipe among the plurality of heat exchange pipes, is different from a structural parameter of the one heat exchange pipe of at least one heat exchange pipe row among a plurality of heat exchange pipe rows provided in a plurality of heat exchange pipe grooves in at least one other heat exchange pipe groove array located on a second side opposite the first side in the third direction of the heat exchanger among a plurality of heat exchange pipe groove arrays of a plurality of fins, or at least one heat exchange pipe among the plurality of heat exchange pipes.

23. 23. The heat exchanger of claim 22, wherein the structural parameters include at least one of the following: a size of the heat exchange pipes in a first direction, a number of holes in the heat exchange pipes, a diameter of the holes in the heat exchange pipes, and a thickness of partitions between the holes in the heat exchange pipes.

24. 2. The heat exchanger as described in claim 1, wherein a plurality of heat exchange pipe grooves in at least one heat exchange pipe groove array among a plurality of heat exchange pipe groove arrays in at least one of the plurality of fins, the plurality of heat exchange pipe grooves in at least one other heat exchange pipe groove array among the plurality of heat exchange pipe groove arrays in the at least one fin among the plurality of fins, the plurality of heat exchange pipe grooves in the ... fin among the plurality of fins, the plurality of heat exchange pipe grooves in the at least one fin among the plurality of fins, the plurality of heat exchange pipe grooves in the second side opposite the first side in the third direction of the heat exchanger, are arranged alternately in the first direction.

25. 2. The heat exchanger as described in claim 1, wherein at least one heat exchange pipe groove of at least one heat exchange pipe groove array among the multiple heat exchange pipe groove arrays of the multiple fins, which is located on a first side in the third direction of the heat exchanger, and at least one heat exchange pipe groove of at least one other heat exchange pipe groove array among the multiple heat exchange pipe groove arrays of the multiple fins, which is located on a second side opposite the first side in the third direction of the heat exchanger, are staggered in the first direction and partially overlap when viewed in the first direction.

26. a heat exchange pipe groove in the heat exchange pipe groove array of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge being located at the outermost sides of the heat exchange pipe groove in the third direction, and in the third direction, the first groove edge in the heat exchange pipe groove of the fin is closer to a first side in the third direction of the heat exchanger than the second groove edge in the heat exchange pipe groove of the fin; 5. A heat exchanger as described in claim 3 or 4, wherein first groove edges of the heat exchange pipe grooves in at least one of the heat exchange pipe groove rows of the fins are approximately aligned with each other in the third direction, and / or second groove edges of the heat exchange pipe grooves in the at least one of the heat exchange pipe groove rows of the fins are approximately aligned with each other in the third direction.

27. 5. The heat exchanger according to claim 3, wherein the heat exchange pipe grooves in at least one of the heat exchange pipe groove rows of the fins have substantially the same size in the third direction.

28. 2. The heat exchanger according to claim 1, wherein the fin body of the fin has a substantially flat plate shape.

29. 2. The heat exchanger of claim 1, wherein the plurality of heat exchange pipe groove rows of the plurality of fins include a first heat exchange pipe groove row and a second heat exchange pipe groove row located respectively on a first side and a second side of the heat exchanger that are opposed to each other in the third direction.

30. 30. The heat exchanger of claim 29, wherein the heat exchange pipe grooves in the first heat exchange pipe groove row of the fins open toward a first side of the heat exchanger, and the heat exchange pipe grooves in the second heat exchange pipe groove row of the fins open toward a second side of the heat exchanger.

31. a heat exchange pipe groove in the heat exchange pipe groove array of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge being located at the outermost sides of the heat exchange pipe groove in the third direction, and in the third direction, the first groove edge in the heat exchange pipe groove of the fin is closer to a first side in the third direction of the heat exchanger than the second groove edge in the heat exchange pipe groove of the fin; 30. The heat exchanger of claim 29, wherein the second groove edges of at least two of the heat exchange pipe grooves in the first heat exchange pipe groove row of the plurality of fins are staggered in the third direction, and / or the first groove edges of at least two of the heat exchange pipe grooves in the second heat exchange pipe groove row of the plurality of fins are staggered in the third direction.

32. 30. The heat exchanger of claim 29, wherein at least one of the heat exchange pipe grooves in the first heat exchange pipe groove row of the plurality of fins and at least one of the heat exchange pipe grooves in the second heat exchange pipe groove row of the plurality of fins are staggered in the first direction.

33. 30. The heat exchanger of claim 29, wherein at least one of the plurality of heat exchange pipe grooves in a first heat exchange pipe groove row of the plurality of fins and at least one of the plurality of heat exchange pipe grooves in a second heat exchange pipe groove row of the plurality of fins are substantially aligned with each other in the first direction.

34. the plurality of heat exchange pipe grooves in the first heat exchange pipe groove array of the plurality of fins include a plurality of first heat exchange pipe grooves and a plurality of second heat exchange pipe grooves, and a length of the first heat exchange pipe grooves in the first heat exchange pipe groove array is smaller than a length of the second heat exchange pipe grooves in the first heat exchange pipe groove array; the plurality of heat exchange pipe grooves in the second heat exchange pipe groove array of the plurality of fins include a plurality of first heat exchange pipe grooves and a plurality of second heat exchange pipe grooves, and a length of the first heat exchange pipe grooves in the second heat exchange pipe groove array is smaller than a length of the second heat exchange pipe grooves in the second heat exchange pipe groove array; 30. The heat exchanger of claim 29, wherein at least one of the first heat exchange pipe grooves in the first heat exchange pipe groove array of the plurality of fins and at least one of the second heat exchange pipe grooves in the second heat exchange pipe groove array of the plurality of fins are substantially aligned with each other in the first direction.

35. 30. A heat exchanger as described in claim 29, wherein the heat exchange pipe grooves in the first heat exchange pipe groove row of the plurality of fins are approximately aligned with each other in the third direction, and / or the heat exchange pipe grooves in the second heat exchange pipe groove row of the plurality of fins are approximately aligned with each other in the third direction.

36. a heat exchange pipe groove in the heat exchange pipe groove array of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge being located at the outermost sides of the heat exchange pipe groove in the third direction, and in the third direction, the first groove edge in the heat exchange pipe groove of the fin is closer to a first side in the third direction of the heat exchanger than the second groove edge in the heat exchange pipe groove of the fin; 30. A heat exchanger as described in claim 29, wherein the second groove edges of the plurality of heat exchange pipe grooves in the first heat exchange pipe groove row of the plurality of fins are approximately aligned with each other in the third direction, and / or the first groove edges of the plurality of heat exchange pipe grooves in the second heat exchange pipe groove row of the plurality of fins are approximately aligned with each other in the third direction.

37. Furthermore, a heat exchange pipe row provided in each of a plurality of heat exchange pipe grooves in each of a plurality of heat exchange pipe groove arrays, the heat exchange pipe row being composed of one heat exchange pipe or a plurality of heat exchange pipes; the length in the third direction of at least one of the plurality of heat exchange pipe grooves in the first heat exchange pipe groove row of at least one of the plurality of fins is greater than the size in the third direction of the heat exchange pipe of the heat exchange pipe row inserted therein, and when the heat exchange pipe row is composed of one heat exchange pipe, the size of the heat exchange pipe is the size in the third direction of the one heat exchange pipe, and when the heat exchange pipe row is composed of multiple heat exchange pipes, the size of the heat exchange pipe is the sum of the sizes in the third direction of the multiple heat exchange pipes, and / or A heat exchanger as described in claim 29, wherein the length in the third direction of at least one of the plurality of heat exchange pipe grooves in the second heat exchange pipe groove row of the at least one fin among the plurality of fins is greater than the size in the third direction of the heat exchange pipe of the heat exchange pipe row inserted therein.

38. Furthermore, a heat exchange pipe row provided in each of a plurality of heat exchange pipe grooves in each of a plurality of heat exchange pipe groove arrays, the heat exchange pipe row being composed of one heat exchange pipe or a plurality of heat exchange pipes; the length in the third direction of at least one of the plurality of heat exchange pipe grooves in the first heat exchange pipe groove row of at least one of the plurality of fins is approximately equal to the size in the third direction of the heat exchange pipe of the heat exchange pipe row inserted therein, and when the heat exchange pipe row is composed of one heat exchange pipe, the size of the heat exchange pipe is the size in the third direction of the one heat exchange pipe, and when the heat exchange pipe row is composed of multiple heat exchange pipes, the size of the heat exchange pipe is the sum of the sizes in the third direction of the multiple heat exchange pipes, and / or 30. A heat exchanger as described in claim 29, wherein the length in the third direction of at least one of the plurality of heat exchange pipe grooves in the second heat exchange pipe groove row of the at least one fin among the plurality of fins is approximately equal to the size in the third direction of the heat exchange pipe of the heat exchange pipe row inserted therein.

39. 6. The heat exchanger of claim 5, wherein the heat exchange pipes of the heat exchange pipe rows arranged in the heat exchange pipe grooves of the plurality of heat exchange pipe groove rows in the plurality of fins include a plurality of heat exchange pipe rows arranged in a third direction, and each of the plurality of heat exchange pipe rows includes a plurality of heat exchange pipes arranged in the first direction.

40. Each of the heat exchange pipes in the rows of heat exchange pipes includes a first end portion located on one side of the heat exchange pipe in the second direction and a second end portion located on the other side of the heat exchange pipe in the second direction; 40. The heat exchanger of claim 39, further comprising a first header pipe connected to a first end of the heat exchange pipe and in fluid communication with the first header pipe, and a second header pipe connected to a second end of the heat exchange pipe and in fluid communication with the second header pipe.

41. Each of the heat exchange pipes in the rows of heat exchange pipes includes a first end portion located on one side of the heat exchange pipe in the second direction and a second end portion located on the other side of the heat exchange pipe in the second direction; 40. The heat exchanger of claim 39, further comprising a first header pipe connected to first ends of heat exchange pipes in the plurality of heat exchange pipe rows and in fluid communication with each other, and two second header pipes, one of the two second header pipes being connected to second ends of heat exchange pipes in at least one heat exchange pipe row among the plurality of heat exchange pipe rows and in fluid communication with each other, and the other of the two second header pipes being connected to second ends of heat exchange pipes in at least another heat exchange pipe row among the plurality of heat exchange pipe rows and in fluid communication with each other.

42. Each of the heat exchange pipes in the rows of heat exchange pipes includes a first end portion located on one side of the heat exchange pipe in the second direction and a second end portion located on the other side of the heat exchange pipe in the second direction; 40. The heat exchanger according to claim 39, further comprising a connection portion connecting first ends of heat exchange pipes in one heat exchange pipe row among the plurality of heat exchange pipe rows to first ends of heat exchange pipes in another heat exchange pipe row among the plurality of heat exchange pipe rows and providing fluid communication therebetween, and two second header pipes, one of which is connected to the second ends of the heat exchange pipes in the one heat exchange pipe row and providing fluid communication therebetween, and the other of which is connected to the second ends of the heat exchange pipes in the other heat exchange pipe row and providing fluid communication therebetween.

43. 43. The heat exchanger of claim 42, wherein the connection portion is a plurality of connecting pipes, through which first ends of heat exchange pipes in one heat exchange pipe row are respectively connected to first ends of heat exchange pipes in another heat exchange pipe row and fluid is communicated therewith.

44. 44. The heat exchanger of claim 43, wherein the heat exchange pipes in one heat exchange pipe row, the connecting tube, and the heat exchange pipes in the other heat exchange pipe row that are connected to each other are formed by bending one pipe.

45. Each of the heat exchange pipes in the rows of heat exchange pipes includes a first end portion located on one side of the heat exchange pipe in the second direction and a second end portion located on the other side of the heat exchange pipe in the second direction; 40. The heat exchanger of claim 39, further comprising two first header pipes and two second header pipes, one of the two first header pipes and one of the two second header pipes being connected to first and second ends, respectively, of heat exchange pipes in at least one other heat exchange pipe row of the plurality of heat exchange pipe rows and in fluid communication therewith, and the other of the two first header pipes and the other of the two second header pipes being connected to first and second ends, respectively, of heat exchange pipes in at least another other heat exchange pipe row of the plurality of heat exchange pipe rows and in fluid communication therewith.

46. 6. A heat exchanger according to claim 5, wherein, in use, at least a portion of the heat exchange pipes extend substantially vertically.

47. 2. The heat exchanger of claim 1, wherein each of at least some of the fins are formed from a single plate.

48. 48. An air conditioning system comprising a heat exchanger according to any one of the preceding claims.

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