Heat exchangers and air conditioning systems

Abstract

The embodiment of the present invention discloses a heat exchanger and an air conditioning system having the heat exchanger. The heat exchanger includes a plurality of fins and a heat exchange tube row. The fin includes a fin body and a plurality of heat exchange tube slots formed in the fin body, the heat exchange tube slot row includes a plurality of heat exchange tube slots arranged along a first direction, a plurality of fins are arranged along a second direction perpendicular to the first direction, and a plurality of heat exchange tube slot rows are arranged along a third direction perpendicular to the first direction and the second direction. The heat exchange tube row is arranged in the heat exchange tube slots of the heat exchange tube slot row, and the heat exchange tube row is composed of one heat exchange tube or a plurality of heat exchange tubes. The length of at least one heat exchange tube slot in the third direction is greater than the size of the heat exchange tube of the heat exchange tube row inserted therein in the third direction. Thereby, the performance of the heat exchanger and the air conditioning system can be improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to a heat exchanger and an air conditioning system having the heat exchanger. Background Art

[0002] The heat exchanger comprises a heat exchange tube and a fin, wherein the fin has a heat exchange tube groove, the heat exchange tube groove is open at one side of the heat exchanger, or the heat exchange tube groove has no opening. The heat exchange tube is inserted into the heat exchange tube groove of the fin. Summary of the invention

[0003] An object of the embodiments of the present invention is to provide a heat exchanger and an air conditioning system having the heat exchanger, thereby, for example, improving the performance of the heat exchanger and the air conditioning system.

[0004] An embodiment of the present invention provides a heat exchanger, comprising: a plurality of fins, each of the plurality of fins comprising: a fin body; and a plurality of heat exchange tube groove arrays formed in the fin body, each of the plurality of heat exchange tube groove arrays comprising a plurality of heat exchange tube grooves arranged along a first direction, a plurality of fins are arranged along a second direction perpendicular to the first direction, and a plurality of heat exchange tube groove arrays of each of the plurality of fins are arranged along a third direction perpendicular to the first direction and the second direction, wherein at least two of the heat exchange tube grooves of the plurality of heat exchange tube groove arrays of at least one fin among the plurality of fins have different lengths in the third direction.

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

[0006] According to an embodiment of the present invention, at least one of the multiple heat exchange tube grooves in at least one heat exchange tube groove row of multiple heat exchange tube grooves of at least one fin among the multiple fins located on a first side of the heat exchanger in the third direction and at least one of the multiple heat exchange tube grooves in at least another heat exchange tube groove row of multiple heat exchange tube grooves of at least one fin among the multiple fins located on a second side of the heat exchanger opposite to the first side in the third direction 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 multiple heat exchange tube grooves of at least one heat exchange tube groove row of multiple heat exchange tube groove rows of at least one fin among the multiple fins located on the first side of the heat exchanger in the third direction is shorter than the length in the third direction of at least one of the multiple heat exchange tube grooves of at least one other heat exchange tube groove row of multiple heat exchange tube groove rows of at least one fin among the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction.

[0008] According to an embodiment of the present invention, the heat exchanger further includes: a heat exchange tube row in each of the multiple heat exchange tube grooves of each heat exchange tube groove row in the multiple heat exchange tube groove rows, the heat exchange tube row consisting of one heat exchange tube or multiple heat exchange tubes, wherein: the length in the third direction of at least one of the multiple heat exchange tube grooves of at least one of the multiple heat exchange tube grooves of the multiple heat exchange tube groove rows of at least one of the multiple fins is greater than the size of the heat exchange tube in the third direction of the heat exchange tube row inserted therein, and when the heat exchange tube row is composed of one heat exchange tube, the size of the heat exchange tube is the size of the one heat exchange tube in the third direction, and when the heat exchange tube row is composed of multiple heat exchange tubes, the size of the heat exchange tube is the sum of the sizes of the multiple heat exchange tubes 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 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, the multiple heat exchange tube grooves of at least one of the multiple heat exchange tube groove columns of at least one of the multiple fins include a plurality of first heat exchange tube grooves and a plurality of second heat exchange tube grooves, and the length SL1 of the first heat exchange tube groove and the length SL2 of the second heat exchange tube groove satisfy the following relationship: SL2≥n*SL1, where n is a positive integer.

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

[0013] According to an embodiment of the present invention, the plurality of first heat exchange tube slots include a plurality of first heat exchange tube slot groups, each of which includes at least one first heat exchange tube slot; the plurality of second heat exchange tube slots include a plurality of second heat exchange tube slot groups, each of which includes at least one second heat exchange tube slot; and the plurality of first heat exchange tube slot groups and the plurality of second heat exchange tube slot groups are alternately arranged in a first direction.

[0014] According to an embodiment of the present invention, multiple heat exchange tube rows in multiple heat exchange tube slots of at least one heat exchange tube slot row of multiple heat exchange tube slot rows of at least one fin among multiple fins have the same number and / or same size of heat exchange tubes.

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

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

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

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

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

[0020] According to an embodiment of the present invention, the heat transfer efficiency between the one heat exchange tube in at least one heat exchange tube row in the multiple heat exchange tube grooves of at least one heat exchange tube groove row located on the first side of the heat exchanger in the third direction among the multiple heat exchange tube groove columns of the multiple heat exchange tube grooves of the multiple fins and at least one of the multiple fins is lower than the heat transfer efficiency between the one heat exchange tube in at least one heat exchange tube row in the multiple heat exchange tube grooves of at least another heat exchange tube groove row located on the second side of the heat exchanger in the third direction opposite to the first side and at least one of the multiple 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 of the heat exchanger in a third direction and a second fin body portion located on a second side of the heat exchanger in the third direction opposite to the first side, the fin includes a first window fin arranged on the first fin body portion, and a second window fin arranged on the second fin body portion, and the heat exchange efficiency of the first window fin is lower than the heat exchange efficiency of the second window fin.

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

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

[0024] According to an embodiment of the present invention, a dimension of the heat exchange tube in the third direction is greater than or equal to 6 mm and less than or equal to 20 mm.

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

[0026] According to an embodiment of the present invention, the structural parameter includes at least one of the size of the heat exchange tube in the first direction, the number of holes of the heat exchange tube, the diameter of the holes of the heat exchange tube and the thickness of the partition wall between the holes of the heat exchange tube.

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

[0028] According to an embodiment of the present invention, at least one of the multiple heat exchange tube grooves of at least one heat exchange tube groove row of a plurality of heat exchange tube groove rows of a plurality of fins located on a first side of the heat exchanger in a third direction and at least one of the multiple heat exchange tube grooves of at least another heat exchange tube groove row of a plurality of heat exchange tube groove rows of a plurality of fins located on a second side of the heat exchanger opposite to the first side in the third direction 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 tube groove of the heat exchange tube groove row of fins has a first groove edge and a second groove edge, the first groove edge and the second groove edge are located at the outermost side of the heat exchange tube groove in the third direction, and in the third direction, the first groove edge of the heat exchange tube groove of the fin is closer to the first side of the heat exchanger in the third direction than the second groove edge of the heat exchange tube groove of the fin; and the first groove edges of the multiple heat exchange tube grooves of at least one heat exchange tube groove row of multiple heat exchange tube groove rows of multiple fins are roughly aligned with each other in the third direction, and / or the second groove edges of the multiple heat exchange tube grooves of at least one heat exchange tube groove row of multiple heat exchange tube groove rows of multiple fins are roughly aligned with each other in the third direction.

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

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

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

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

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

[0035] According to an embodiment of the present invention, at least one of the plurality of heat exchange tube slots in a first heat exchange tube slot array of a plurality of fins and at least one of the plurality of heat exchange tube slots in a second heat exchange tube slot array of a plurality of 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 tube slots of the first heat exchange tube slot array of the plurality of fins is substantially aligned with at least one of the plurality of heat exchange tube slots of the second heat exchange tube slot array of the plurality of fins in the first direction.

[0037] According to an embodiment of the present invention, the multiple heat exchange tube grooves of a first heat exchange tube groove row of multiple fins include a plurality of first heat exchange tube grooves and a plurality of second heat exchange tube grooves, and the length of the first heat exchange tube grooves of the first heat exchange tube groove row is less than the length of the second heat exchange tube grooves of the first heat exchange tube groove row; the multiple heat exchange tube grooves of a second heat exchange tube groove row of multiple fins include a plurality of first heat exchange tube grooves and a plurality of second heat exchange tube grooves, and the length of the first heat exchange tube grooves of the second heat exchange tube groove row is less than the length of the second heat exchange tube grooves of the second heat exchange tube groove row; and at least one of the multiple first heat exchange tube grooves of the first heat exchange tube groove row of multiple fins and at least one of the multiple second heat exchange tube grooves of the second heat exchange tube groove row of multiple fins are roughly aligned with each other in a first direction.

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

[0039] According to an embodiment of the present invention, the heat exchange tube groove of the heat exchange tube groove row of fins has a first groove edge and a second groove edge, the first groove edge and the second groove edge are located at the outermost side of the heat exchange tube groove in the third direction, and in the third direction, the first groove edge of the heat exchange tube groove of the fin is closer to the first side of the heat exchanger in the third direction than the second groove edge of the heat exchange tube groove of the fin; and the second groove edges of the multiple heat exchange tube grooves of the first heat exchange tube groove row of multiple fins are roughly aligned with each other in the third direction, and / or the first groove edges of the multiple heat exchange tube grooves of the second heat exchange tube groove row of multiple fins are roughly 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 tube row in each of the multiple heat exchange tube grooves of each heat exchange tube groove column in a plurality of heat exchange tube groove columns, the heat exchange tube row consisting of one heat exchange tube or multiple heat exchange tubes, wherein: the length in the third direction of at least one heat exchange tube groove of the multiple heat exchange tube grooves of the first heat exchange tube groove column of at least one fin among the multiple fins is greater than the size of the heat exchange tube in the third direction of the heat exchange tube row inserted therein, when the heat exchange tube row consists of one heat exchange tube, the size of the heat exchange tube is the size of the one heat exchange tube in the third direction, and when the heat exchange tube row consists of multiple heat exchange tubes, the size of the heat exchange tube is the sum of the sizes of the multiple heat exchange tubes in the third direction, and / or the length in the third direction of at least one heat exchange tube groove of the multiple heat exchange tube grooves of the second heat exchange tube groove column of the at least one fin among the multiple fins is greater than the size of the heat exchange tube in the third direction of the heat exchange tube row inserted therein.

[0041] According to an embodiment of the present invention, the heat exchanger further includes: a heat exchange tube row in each of the multiple heat exchange tube grooves of each heat exchange tube groove column in a plurality of heat exchange tube groove columns, the heat exchange tube row consisting of one heat exchange tube or multiple heat exchange tubes, wherein: the length in the third direction of at least one heat exchange tube groove of the multiple heat exchange tube grooves of the first heat exchange tube groove column of at least one fin among the multiple fins is approximately equal to the size of the heat exchange tube in the third direction of the heat exchange tube row inserted therein, when the heat exchange tube row is composed of one heat exchange tube, the size of the heat exchange tube is the size of the one heat exchange tube in the third direction, and when the heat exchange tube row is composed of multiple heat exchange tubes, the size of the heat exchange tube is the sum of the sizes of the multiple heat exchange tubes in the third direction, and / or the length in the third direction of at least one heat exchange tube groove of the multiple heat exchange tube grooves of the second heat exchange tube groove column of the at least one fin among the multiple fins is approximately equal to the size of the heat exchange tube in the third direction of the heat exchange tube row inserted therein.

[0042] According to an embodiment of the present invention, the heat exchange tubes of the heat exchange tube rows arranged in the heat exchange tube grooves of the multiple heat exchange tube groove columns of the multiple fins include a plurality of heat exchange tube columns arranged in a third direction, and each of the multiple heat exchange tube columns includes a plurality of heat exchange tubes arranged in a first direction.

[0043] According to an embodiment of the present invention, the heat exchange tubes of the multiple heat exchange tube rows include a first end located on one side of the heat exchange tube in the second direction and a second end located on the other side of the heat exchange tube in the second direction; and the heat exchanger also includes: a first header connected to the first end of the heat exchange tube and fluidically connected; and a second header connected to the second end of the heat exchange tube and fluidically connected.

[0044] According to an embodiment of the present invention, the heat exchange tubes of a plurality of heat exchange tube columns include a first end portion located on one side of the heat exchange tubes in a second direction and a second end portion located on the other side of the heat exchange tubes in the second direction; and the heat exchanger also includes: a first collecting pipe interconnected with and fluidically connected to the first ends of the heat exchange tubes of the plurality of heat exchange tube columns; and two second collecting pipes, one of the two second collecting pipes being connected to and fluidically connected to the second ends of the heat exchange tubes of at least one heat exchange tube column in the plurality of heat exchange tube columns, and the other of the two second collecting pipes being connected to and fluidically connected to the second ends of the heat exchange tubes of at least another heat exchange tube column in the plurality of heat exchange tube columns.

[0045] According to an embodiment of the present invention, the heat exchange tubes of a plurality of heat exchange tube columns include a first end portion located on one side of the heat exchange tubes in a second direction and a second end portion located on the other side of the heat exchange tubes in the second direction; and the heat exchanger also includes: a connecting portion, through which the first end portion of the heat exchange tubes of one of the plurality of heat exchange tube columns is interconnected and fluidically connected with the first end portion of the heat exchange tubes of another of the plurality of heat exchange tube columns; and two second collecting pipes, one of the two second collecting pipes is connected and fluidically connected with the second end portion of the heat exchange tubes of the one heat exchange tube column, and the other of the two second collecting pipes is connected and fluidically connected with the second end portion of the heat exchange tubes of the other heat exchange tube column.

[0046] According to an embodiment of the present invention, the connecting portion is a plurality of connecting tubes, through which the first ends of the heat exchange tubes of the one heat exchange tube row are respectively connected to the first ends of the heat exchange tubes of the other heat exchange tube row and are fluidically connected.

[0047] According to an embodiment of the present invention, the heat exchange tubes of the one heat exchange tube row, the connecting tubes and the heat exchange tubes of the other heat exchange tube row that are connected to each other are formed by bending a tube.

[0048] According to an embodiment of the present invention, the heat exchange tubes of a plurality of heat exchange tube columns include a first end located on one side of the heat exchange tube in a second direction and a second end located on the other side of the heat exchange tube in the second direction; and the heat exchanger also includes: two first collecting pipes and two second collecting pipes, one of the two first collecting pipes and one of the two second collecting pipes are respectively connected to the first end and the second end of the heat exchange tubes of at least one heat exchange tube column in the plurality of heat exchange tube columns and are fluidically connected, and the other of the two first collecting pipes and the other of the two second collecting pipes are respectively connected to the first end and the second end of the heat exchange tubes of at least another heat exchange tube column in the plurality of heat exchange tube columns and are fluidically connected.

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

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

[0051] An embodiment of the present invention further provides an air conditioning system, comprising: the above-mentioned heat exchanger.

[0052] By using the heat exchanger and the air conditioning system having the heat exchanger according to the embodiment of the present invention, for example, the performance of the heat exchanger and the air conditioning system can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a schematic front view of a heat exchanger according to an embodiment of the present invention;

[0054] Figure 2 for Figure 1 A schematic left side view of the heat exchanger shown;

[0055] Figure 3 is a schematic front view of a heat exchanger according to an embodiment of the present invention;

[0056] Figure 4 for Figure 3 A schematic left side view of the heat exchanger shown;

[0057] Figure 5 is a schematic front view of a heat exchanger according to an embodiment of the present invention;

[0058] Figure 6 for Figure 5 A schematic left side view of the heat exchanger shown;

[0059] Figure 7 is a schematic top view of a fin of a heat exchanger according to an embodiment of the present invention;

[0060] Figure 8 is a schematic top view of a fin of a heat exchanger according to an embodiment of the present invention;

[0061] Fig. 9 is a schematic top view of a fin of a heat exchanger according to an embodiment of the present invention;

[0062] Fig.10 is a schematic top view of a fin of a heat exchanger according to an embodiment of the present invention;

[0063] Fig.11 is a schematic top view of a fin of a heat exchanger according to an embodiment of the present invention;

[0064] Fig.12 is a schematic top view of a fin of a heat exchanger according to an embodiment of the present invention;

[0065] Fig.13 for Fig.12 A schematic front view of the fins of the heat exchanger shown;

[0066] Fig.14 is a schematic top view of a fin of a heat exchanger according to an embodiment of the present invention;

[0067] Fig.15 for Fig.14 A schematic front view of the fins of the heat exchanger shown;

[0068] Fig.16 A schematic top view showing the matching relationship between the fins and the heat exchange tubes of the heat exchanger according to an embodiment of the present invention;

[0069] Fig.17 A schematic top view showing the matching relationship between the fins and the heat exchange tubes of the heat exchanger according to an embodiment of the present invention;

[0070] Fig.18 A schematic top view showing the matching relationship between the fins and the heat exchange tubes of the heat exchanger according to an embodiment of the present invention; and

[0071] Fig.19 It is a schematic top view showing the matching relationship between the fins and the heat exchange tubes of the heat exchanger according to an embodiment of the present invention. DETAILED DESCRIPTION

[0072] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0073] See also Figures 1 to 19 The heat exchanger 100 according to the 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 tube groove arrays formed in the fin body 20. For example, Figures 7 to 12 , Fig.14 , Figures 16 to 19 , a first heat exchange tube slot array including a plurality of heat exchange tube slots 21A and a second heat exchange tube slot array including a plurality of heat exchange tube slots 21B are shown, and the first heat exchange tube slot array and the second heat exchange tube slot array are respectively located at a first side S1 and a second side S2 of the heat exchanger 100 that are opposite in a third direction D3. In addition, the fin 2 may include three or more heat exchange tube slot arrays. The fin body 20 of the fin 2 may have a substantially flat plate shape. Each of the plurality of heat exchange tube slot arrays includes a plurality of heat exchange tube slots 21 arranged along a first direction D1, the plurality of fins 2 are arranged along a second direction D2 perpendicular to the first direction D1, and the plurality of heat exchange tube slot arrays of each of the plurality of fins 2 are arranged along a third direction D3 perpendicular to the first direction D1 and the second direction D2. At least two of the heat exchange tube slots 21 of the plurality of heat exchange tube slot arrays of at least one fin 2 among the plurality of fins 2 have different lengths in the third direction D3.

[0074] See also Figure 7 , Figure 8 , Fig. 9 , Fig.12 , Fig.14 , Fig.16 , Fig.17 In some embodiments of the present invention, at least two heat exchange tube grooves 21 of the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove row of the multiple heat exchange tube groove rows of at least one fin 2 among the multiple fins 2 have different lengths in the third direction D3.

[0075] See also Fig.10 , Fig.11 , Fig.18 , Fig.19 In some other embodiments of the present invention, at least one heat exchange tube groove 21 of the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove row of the multiple heat exchange tube groove rows of at least one fin 2 among the multiple fins 2 located on the first side S1 of the heat exchanger 100 in the third direction D3 and at least one heat exchange tube groove 21 of the multiple heat exchange tube groove rows of at least one fin 2 among the multiple fins 2 located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3 have different lengths in the third direction D3. For example, the length in the third direction D3 of at least one heat exchange tube groove 21 of the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove row of the multiple heat exchange tube groove rows of at least one fin 2 among the multiple fins 2 located on the first side S1 of the heat exchanger 100 in the third direction D3 is smaller than the length in the third direction D3 of at least one heat exchange tube groove 21 of the multiple heat exchange tube groove rows of at least one fin 2 among the multiple fins 2 located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3.

[0076] See also Fig.10 , Fig.11 , Fig.18 , Fig.19In the embodiment of the present invention, the heat exchange tube groove 21 of the heat exchange tube groove array of the fin 2 has a first groove edge 211 and a second groove edge 212, the first groove edge 211 and the second groove edge 212 are located at the outermost side of the heat exchange tube groove 21 in the third direction D3, and in the third direction D3, the first groove edge 211 of the heat exchange tube groove 21 of the fin 2 is closer to the first side S1 of the heat exchanger 100 in the third direction D3 than the second groove edge 212 of the heat exchange tube groove 21 of the fin 2. The first groove edges 211 of the plurality of heat exchange tube grooves 21 of at least one of the plurality of heat exchange tube groove arrays of the plurality of fins 2 are substantially aligned with each other in the third direction D3, and / or the second groove edges 212 of the plurality of heat exchange tube grooves 21 of the at least one of the plurality of heat exchange tube groove arrays of the plurality of fins 2 are substantially aligned with each other in the third direction D3. The plurality of heat exchange tube grooves 21 of at least one heat exchange tube groove row among the plurality of heat exchange tube groove rows of the plurality of fins 2 may have substantially the same size in the third direction D3.

[0077] See also Figures 16 to 19 In an embodiment of the present invention, the heat exchanger 100 further comprises: a heat exchange tube row in each of the plurality of heat exchange tube slots 21 in each of the plurality of heat exchange tube slot rows, the heat exchange tube row being composed of one heat exchange tube 1 or a plurality of heat exchange tubes 1. Fig.16 , Fig.18 , Fig.19 , the length of at least one heat exchange tube groove 21 in the third direction D3 of at least one heat exchange tube groove row in the plurality of heat exchange tube groove rows of at least one fin 2 in the plurality of fins 2 is greater than the heat exchange tube size in the third direction D3 of the heat exchange tube row inserted therein, and when the heat exchange tube row is composed of one heat exchange tube 1, the heat exchange tube size is the size of the one heat exchange tube 1 in the third direction D3, and when the heat exchange tube row is composed of multiple heat exchange tubes 1, the heat exchange tube size is the sum of the sizes of the multiple heat exchange tubes 1 in the third direction D3. According to an embodiment of the present invention, the temperature field in different regions of the heat exchanger in the third direction can be flexibly controlled, so as to optimize the heat exchange efficiency. In addition, the amount of condensed water generated in different regions of the heat exchanger in the third direction can also be adjusted. Furthermore, a gap 5 for water to pass through can be formed in the heat exchange tube groove 21. For example, the gap 5 forms a drainage channel, and the defrosting water can flow away quickly through the drainage channel, thereby improving the performance of the heat exchanger under frosting conditions.

[0078] Heat transfer efficiency refers to the measure of the effectiveness of heat transfer between air and other fluid media when air flows through a heat exchanger. Under the same atmospheric environment, dry bulb temperature, wet bulb temperature, atmospheric pressure, same fluid, same inlet temperature, and same flow rate, the difference in temperature change before and after the air flows through the heat exchanger is compared with the average temperature at the outlet. A higher temperature change means a higher heat transfer efficiency.

[0079] See also Figures 7 to 9 , Fig.12 , Fig.14 , Fig.16 , Fig.17 In the embodiment of the present invention, the plurality of heat exchange tube slots 21 of at least one of the plurality of heat exchange tube slot rows of at least one of the plurality of fins 2 include a plurality of first heat exchange tube slots 21S and a plurality of second heat exchange tube slots 21L (only in Figure 7 In the figure, the reference numerals "21S" and "21L" are marked), the length SL1 of the first heat exchange tube slot 21S and the length SL2 of the second heat exchange tube slot 21L satisfy the following relationship: SL2≥n*SL1, where n is a positive integer. n may be greater than or equal to 2. In one example of the present invention, the plurality of first heat exchange tube slots 21 include a plurality of first heat exchange tube slot groups, each of which includes at least one first heat exchange tube slot 21S; the plurality of second heat exchange tube slots 21 include a plurality of second heat exchange tube slot groups, each of which includes at least one second heat exchange tube slot 21L; and the plurality of first heat exchange tube slot groups and the plurality of second heat exchange tube slot groups are alternately arranged in the first direction D1. For example, each first heat exchange tube slot group includes a first heat exchange tube slot 21S, and each second heat exchange tube slot group includes a second heat exchange tube slot 21L. See. Fig.16 , Fig.18 , Fig.19 In an embodiment of the present invention, a plurality of heat exchange tube rows in a plurality of heat exchange tube grooves 21 of at least one heat exchange tube groove row in a plurality of heat exchange tube groove rows of at least one fin 2 among a plurality of fins 2 have the same number and / or the same size of heat exchange tubes 1. According to an example of the present invention, the dimension of the heat exchange tube 1 in the third direction D3 is greater than or equal to 6 mm and less than or equal to 20 mm. According to an embodiment of the present invention, when heat exchange tubes 1 of the same width are used, the complexity of the production process can be reduced, and the occurrence of errors can also be reduced. In addition, the temperature field of the heat exchanger in different areas in the third direction can be flexibly controlled.

[0080] See also Figures 7 to 12 , Fig.14 , Figures 16 to 19 In some embodiments of the present invention, the spacing of the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove row located on the first side S1 of the heat exchanger 100 in the third direction D3 among the multiple heat exchange tube groove rows of the multiple fins 2 is substantially the same as the spacing of the multiple heat exchange tube grooves 21 of at least another heat exchange tube groove row located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3. Fig.18 , Fig.19The size of heat exchange tubes of at least one of the multiple heat exchange tube rows in the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove column among the multiple heat exchange tube groove columns of the multiple fins 2 located on the first side S1 of the heat exchanger 100 in the third direction D3 may be different from the size of heat exchange tubes of at least one of the multiple heat exchange tube rows in the multiple heat exchange tube grooves 21 of at least another heat exchange tube groove column among the multiple heat exchange tube groove columns of the multiple fins 2 located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3. For example, the heat exchange tube size of at least one of the multiple heat exchange tube rows in the multiple heat exchange tube slots 21 of the at least one heat exchange tube slot row located on the first side S1 of the heat exchanger 100 in the third direction D3 among the multiple heat exchange tube slot rows of the multiple fins 2 is smaller than the heat exchange tube size of at least one of the multiple heat exchange tube rows in the multiple heat exchange tube slots 21 of the at least another heat exchange tube slot row located on the second side S2 opposite to the first side S1 in the third direction D3 of the heat exchanger 100. By using heat exchange tube slots with the same spacing and heat exchange tube rows with different heat exchange tube sizes, the temperature field in different areas of the heat exchanger in the third direction can be flexibly controlled. In addition, the spacing of the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove column located on the first side S1 of the heat exchanger 100 in the third direction D3 among the multiple heat exchange tube groove columns of the multiple fins 2 may be different from the spacing of the multiple heat exchange tube grooves 21 of at least another heat exchange tube groove column located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3 among the multiple heat exchange tube groove columns of the multiple fins 2. For example, the spacing of the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove column located on the first side S1 of the heat exchanger 100 in the third direction D3 among the multiple heat exchange tube groove columns of the multiple fins 2 is greater than the spacing of the multiple heat exchange tube grooves 21 of at least another heat exchange tube groove column located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3 among the multiple heat exchange tube groove columns of the multiple fins 2. By setting the heat exchange tube grooves 21 with different spacings, the temperature field in different areas of the heat exchanger in the third direction can be flexibly controlled.

[0081] See also Figure 1 , Figure 3 , Figure 5In an embodiment of the present invention, a plurality of fins 2 and heat exchange tubes 1 of heat exchange tube rows arranged in heat exchange tube grooves 21 of a plurality of heat exchange tube groove columns of 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 respectively located on both sides of a plane passing through the geometric center of the fin body 20 and perpendicular to the third direction D3, the first core portion 81 is located on a first side S1 of the heat exchanger 100 in the third direction D3, the second core portion 82 is located on a second side S2 of the heat exchanger 100 in the third direction D3 opposite to the first side S1, the heat exchange efficiency of the first core portion 81 is lower than the heat exchange efficiency of the second core portion 82. According to the embodiment of the present invention, when the first core part 81 is on the windward side of the heat exchanger and the second core part 82 is on the leeward side of the heat exchanger, by adjusting the heat exchange efficiency of the first core part 81 and the second core part 82, the utilization efficiency of the first core part 81 can be balanced and the second core part 82 can be fully utilized. In addition, the amount of condensed water generated in the first core part 81 can be potentially reduced, the heat transfer resistance caused by the condensed water is reduced, and the overall heat exchange efficiency of the heat exchanger can be improved.

[0082] See also Figure 1 , Figure 3 , Figure 5 , Figures 16 to 19 In an embodiment of the present invention, the heat transfer efficiency between the one heat exchange tube 1 or at least one heat exchange tube 1 of the multiple heat exchange tube rows in the multiple heat exchange tube slots 21 of at least one heat exchange tube slot row located on the first side S1 of the heat exchanger 100 in the third direction D3 among the multiple heat exchange tube slot rows of the multiple fins 2 and at least one of the multiple fins 2 is lower than the heat transfer efficiency between the one heat exchange tube 1 or at least one heat exchange tube 1 of the multiple heat exchange tube rows in the multiple heat exchange tube slots 21 of at least another heat exchange tube slot row located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3 among the multiple heat exchange tube slot rows of the multiple fins 2 and at least one of the multiple fins 2. According to an example of the present invention, see Fig.14 , Fig.15, the fin body 20 of the plurality of fins 2 includes a first fin body portion 20A located on a first side S1 of the heat exchanger 100 in a third direction D3 and a second fin body portion 20B located on a second side S2 of the heat exchanger 100 in the third direction D3 opposite to the first side S1, and 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 window fin 22A disposed on the first fin body portion 20A, and a second window fin 22B disposed on the second fin body portion 20B, and the heat exchange efficiency of the first window fin 22A is lower than the heat exchange efficiency of the second window fin 22B. The number of first window fins 22A may be smaller than the number of second window fins 22B; and / or the inclination angle of the first window fin 22A relative to the first fin body portion 20A is smaller than the inclination angle of the second window fin 22B relative to the second fin body portion 20B. For example, see Fig.15 , the pitch of the first window pieces 22A is 3 mm, the inclination angle of the first window pieces 22A relative to the first fin main body 20A is 25 degrees, the pitch of the second window pieces 22B is 2 mm, and the inclination angle of the second window pieces 22B relative to the second fin main body 20B is 30 degrees. According to another example of the present invention, see Fig.12 , Fig.13 The fin bodies 20 of the plurality of fins 2 include a first fin body portion 20A located at a first side S1 of the heat exchanger 100 in the third direction D3 and a second fin body portion 20B located at a second side S2 of the heat exchanger 100 in the third direction D3 opposite to the first side S1, the fin 2 includes a second window piece 22B disposed on the second fin body portion 20B, and the first fin body portion 20A has no window piece. According to the embodiment of the present invention, the temperature field in different regions of the heat exchanger in the third direction can be flexibly controlled.

[0083] See also Fig.17 , Fig.19In an embodiment of the present invention, the structural parameters of at least one heat exchange tube 1 or at least one heat exchange tube 1 of at least one of the plurality of heat exchange tube rows in the plurality of heat exchange tube slots 21 of at least one heat exchange tube slot row located on the first side S1 of the heat exchanger 100 in the third direction D3 arranged in the plurality of heat exchange tube slot rows of the plurality of fins 2 are different from the structural parameters of at least one heat exchange tube 1 or at least one of the plurality of heat exchange tubes 1 of at least one of the plurality of heat exchange tube rows in the plurality of heat exchange tube slots 21 of at least another heat exchange tube slot row located on the second side S2 of the heat exchanger 100 in the third direction D3 opposite to the first side S1 arranged in the plurality of heat exchange tube slot rows of the plurality of fins 2. The structural parameters may include at least one of the size of the heat exchange tube 1 in the first direction D1, the number of holes of the heat exchange tube 1, the diameter of the holes of the heat exchange tube 1, and the thickness of the partition wall between the holes of the heat exchange tube 1.

[0084] See also Figure 7 , Figure 8 , Figures 10 to 12 , Fig.14 , Figures 16 to 19 In the embodiment of the present invention, the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove row located on the first side S1 of the heat exchanger 100 in the third direction D3 among the multiple heat exchange tube groove rows of at least one fin 2 among the multiple fins 2 are alternately arranged in the first direction D1 with the multiple heat exchange tube grooves 21 of at least another heat exchange tube groove row located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3 among the multiple heat exchange tube groove rows of the at least one fin 2 among the multiple fins 2. Fig.11 According to an example of the present invention, at least one heat exchange tube groove 21 of the multiple heat exchange tube grooves 21 of at least one heat exchange tube groove row of the multiple heat exchange tube groove rows of the multiple fins 2 located on the first side S1 of the heat exchanger 100 in the third direction D3 and at least one heat exchange tube groove 21 of the multiple heat exchange tube groove rows of the multiple fins 2 located on the second side S2 of the heat exchanger 100 opposite to the first side S1 in the third direction D3 are staggered in the first direction D1 and partially overlap when viewed in the first direction D1.

[0085] See also Figures 7 to 12 , Fig.14 , Figures 16 to 19In an embodiment of the present invention, the plurality of heat exchange tube slots of the plurality of fins 2 include a first heat exchange tube slot row and a second heat exchange tube slot row respectively located on a first side S1 and a second side S2 of the heat exchanger 100 that are opposite to each other in the third direction D3. The plurality of heat exchange tube slots 21A of the first heat exchange tube slot row of the plurality of fins 2 are open toward the first side S1 of the heat exchanger 100, and the plurality of heat exchange tube slots 21B of the second heat exchange tube slot row of the plurality of fins 2 are open toward the second side S2 of the heat exchanger 100. The heat exchange tube slots 21 of the plurality of fins 2 may have no openings and be closed heat exchange tube slots.

[0086] See also Figures 7 to 9 , Fig.12 , Fig.14 , Fig.16 , Fig.17 In the embodiment of the present invention, the second groove edges 212 of at least two heat exchange grooves 21A of the plurality of heat exchange grooves 21A of the first heat exchange groove array of the plurality of fins 2 are staggered in the third direction D3, and / or the first groove edges 211 of at least two heat exchange grooves 21B of the plurality of heat exchange grooves 21B of the second heat exchange groove array of the plurality of fins 2 are staggered in the third direction D3. Figure 7 , Figure 8 , Figures 10 to 12 , Fig.14 , Figures 16 to 19 At least one of the plurality of heat exchange tube grooves 21A of the first heat exchange tube groove row of the plurality of fins 2 and at least one of the plurality of heat exchange tube grooves 21B of the second heat exchange tube groove row of the plurality of fins 2 are staggered in the first direction D1. Fig. 9 , at least one of the plurality of heat exchange tube grooves 21A of the first heat exchange tube groove row of the plurality of fins 2 is substantially aligned with at least one of the plurality of heat exchange tube grooves 21B of the second heat exchange tube groove row of the plurality of fins 2 in the first direction D1. According to an embodiment of the present invention, by staggering the groove edges of the heat exchange tube grooves in the third direction D3 and staggering the heat exchange tube grooves in the first direction D1, the flow path of the condensed water discharge can be shortened, which is beneficial to the rapid discharge of the condensed water and the reduction of the resistance to the wind, and the amount of condensed condensed water can also be adjusted.

[0087] See also Figure 7In an example of the present invention, the multiple heat exchange tube grooves 21 of the first heat exchange tube groove row of the multiple fins 2 include a plurality of first heat exchange tube grooves 21S and a plurality of second heat exchange tube grooves 21L, and the length of the first heat exchange tube grooves 21S of the first heat exchange tube groove row is less than the length of the second heat exchange tube grooves 21L of the first heat exchange tube groove row; the multiple heat exchange tube grooves 21B of the second heat exchange tube groove row of the multiple fins 2 include a plurality of first heat exchange tube grooves 21S and a plurality of second heat exchange tube grooves 21L, and the length of the first heat exchange tube grooves 21S of the second heat exchange tube groove row is less than the length of the second heat exchange tube grooves 21L of the second heat exchange tube groove row; and at least one of the multiple first heat exchange tube grooves 21S of the first heat exchange tube groove row of the multiple fins 2 is roughly aligned with at least one of the multiple second heat exchange tube grooves 21L of the second heat exchange tube groove row of the multiple fins 2 in the first direction D1.

[0088] See also Fig.10 , Fig.11 , Fig.18 , Fig.19 In the embodiment of the present invention, the plurality of heat exchange tube grooves 21A of the first heat exchange tube groove row of the plurality of fins 2 are substantially aligned with each other in the third direction D3, and / or the plurality of heat exchange tube grooves 21B of the second heat exchange tube groove row of the plurality of fins 2 are substantially aligned with each other in the third direction D3. For example, the second groove edges 212 of the plurality of heat exchange tube grooves 21A of the first heat exchange tube groove row of the plurality of fins 2 are substantially aligned with each other in the third direction D3, and / or the first groove edges 211 of the plurality of heat exchange tube grooves 21B of the second heat exchange tube groove row of the plurality of fins 2 are substantially aligned with each other in the third direction D3.

[0089] See also Fig.16 , Fig.18 , Fig.19 In an embodiment of the present invention, the length of at least one heat exchange tube slot 21 in the plurality of heat exchange tube slots 21A of the first heat exchange tube slot row of at least one fin 2 in the plurality of fins 2 in the third direction D3 is greater than the size of the heat exchange tube in the heat exchange tube row inserted therein in the third direction D3, and / or the length of at least one heat exchange tube slot 21 in the plurality of heat exchange tube slots 21B of the second heat exchange tube slot row of the at least one fin 2 in the plurality of fins 2 in the third direction D3 is greater than the size of the heat exchange tube in the heat exchange tube row inserted therein in the third direction D3. Fig.17 , Fig.18 , Fig.19In an embodiment of the present invention, the length of at least one heat exchange tube groove 21 in the multiple heat exchange tube grooves 21A of the first heat exchange tube groove row of at least one fin 2 among the multiple fins 2 in the third direction D3 is approximately equal to the size of the heat exchange tube row inserted therein in the third direction D3, and / or the length of at least one heat exchange tube groove 21 in the multiple heat exchange tube grooves 21B of the second heat exchange tube groove row of at least one fin 2 among the multiple fins 2 in the third direction D3 is approximately equal to the size of the heat exchange tube row inserted therein in the third direction D3.

[0090] See also Figure 1 , Figure 3 , Figure 5 , Figures 16 to 19 In an embodiment of the present invention, the heat exchange tubes 1 of the heat exchange tube rows in the heat exchange tube slots 21 of the multiple heat exchange tube slot rows of the multiple fins 2 include multiple heat exchange tube rows arranged in the third direction D3, and each of the multiple heat exchange tube rows includes multiple heat exchange tubes 1 arranged in the first direction D1. For example, the first heat exchange tube row includes multiple heat exchange tubes 1A, the second heat exchange tube row includes multiple heat exchange tubes 1B, the third heat exchange tube row includes multiple heat exchange tubes 1C, the fourth heat exchange tube row includes multiple heat exchange tubes 1D, and so on. See Figure 1 , Figure 3 , Figure 5 In an embodiment of the present invention, the heat exchange tubes 1 of the plurality of heat exchange tube columns include a first end 18 located on one side of the heat exchange tube 1 in the second direction D2 and a second end 19 located on the other side of the heat exchange tube 1 in the second direction D2. In one example, the heat exchanger 100 further includes: a first header 31 connected to and fluidically connected with the first end 18 of the heat exchange tube 1; and a second header 32 connected to and fluidically connected with the second end 19 of the heat exchange tube 1. In another example, the heat exchanger 100 further includes: a first header 31 interconnected and fluidically connected with the first ends 18 of the heat exchange tubes 1 of the plurality of heat exchange tube columns; and two second headers 32, one of the two second headers 32 is connected to and fluidically connected with the second end 19 of the heat exchange tube 1 of at least one heat exchange tube column in the plurality of heat exchange tube columns, and the other of the two second headers 32 is connected to and fluidically connected with the second end 19 of the heat exchange tube 1 of at least another heat exchange tube column in the plurality of heat exchange tube columns. In yet another example, see Figure 5 , Figure 6The heat exchanger 100 further includes: a connection portion 6, through which the first end 18 of the heat exchange tube 1 of one of the plurality of heat exchange tube rows is connected to the first end 18 of the heat exchange tube 1 of another of the plurality of heat exchange tube rows and is in fluid communication; and two second headers 32, one of the two second headers 32 is connected to the second end 19 of the heat exchange tube 1 of the one heat exchange tube row and is in fluid communication, and the other of the two second headers 32 is connected to the second end 19 of the heat exchange tube 1 of the other heat exchange tube row and is in fluid communication. The connection portion 6 may be a plurality of connection tubes 60, through which the first end 18 of the heat exchange tube 1 of the one heat exchange tube row is respectively connected to the first end 18 of the heat exchange tube 1 of the other heat exchange tube row and is in fluid communication. The connecting portion 6 can also connect the first end 18 of the heat exchange tube 1 of the one heat exchange tube row with the first end 18 of the heat exchange tube 1 of the other heat exchange tube row and fluidly communicate with each other, rather than connecting the first end 18 of the heat exchange tube 1 of the one heat exchange tube row with the first end 18 of the heat exchange tube 1 of the other heat exchange tube row one by one and fluidly communicate with each other. The interconnected heat exchange tubes 1 of the one heat exchange tube row, the connecting tube 60 and the heat exchange tubes 1 of the other heat exchange tube row can be formed by bending a tube. Figure 5 , Figure 6 In the example shown in , the first ends 18 of the heat exchange tubes 1 of two heat exchange tube rows among the plurality of heat exchange tube rows are respectively connected to each other and in fluid communication with the first ends 18 of the heat exchange tubes 1 of the other two heat exchange tube rows among the plurality of heat exchange tube rows, one of the two second headers 32 is connected to the second ends 19 of the heat exchange tubes 1 of the two heat exchange tube rows and in fluid communication with each other, and the other of the two second headers 32 is connected to the second ends 19 of the heat exchange tubes 1 of the other two heat exchange tube rows and in fluid communication with each other. In a further example, see Figure 1 , Figure 3 The heat exchanger 100 further includes: two first headers 31 and two second headers 32, one of the two first headers 31 and one of the two second headers 32 are respectively connected to the first end 18 and the second end 19 of the heat exchange tube 1 of at least one heat exchange tube row in the plurality of heat exchange tube rows and are in fluid communication, and the other of the two first headers 31 and the other of the two second headers 32 are respectively connected to the first end 18 and the second end 19 of the heat exchange tube 1 of at least another heat exchange tube row in the plurality of heat exchange tube rows and are in fluid communication. Figure 1 , Figure 3 In the example shown, each first header 31 is connected to the first end 18 of the heat exchange tube 1 of two heat exchange tube columns among the multiple heat exchange tube columns and is fluidically connected, and each second header 32 is connected to the second end 19 of the heat exchange tube 1 of two heat exchange tube columns among the multiple heat exchange tube columns and is fluidically connected.

[0091] See also Figures 1 to 6 In an embodiment of the present invention, in use, at least a portion of the heat exchange tube 1 extends substantially vertically. For example, the heat exchange tube 1 extends substantially vertically. In addition, at least a portion of the heat exchange tube 1 may also extend substantially horizontally or obliquely, for example, the heat exchange tube 1 may extend substantially horizontally or obliquely. Figures 1 to 19 In an embodiment of the present invention, each of at least some of the fins 2 is formed by a plate. For example, the fin 2 is formed by a plate. The fin body 20 of the fin 2 may be inclined relative to the plane defined by the first direction D1 and the third direction D3. The 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 less than or equal to 45 degrees. When the heat exchanger is used as an evaporator, condensed water is generated, and the fin body 20 of the fin 2 is inclined to facilitate the smooth discharge of the condensed water and reduce wind resistance.

[0092] exist Figure 7 In the example shown, the plurality of heat exchange tube slots 21A of the first heat exchange tube slot row are open toward the first side S1 of the heat exchanger 100, and the plurality of heat exchange tube slots 21B of the second heat exchange tube slot row are open toward the second side S2 of the heat exchanger 100. The heat exchange tube slot row includes heat exchange tube slots 21 of different lengths. The plurality of heat exchange tube slots 21A of the first heat exchange tube slot row and the plurality of heat exchange tube slots 21B of the second heat exchange tube slot row are staggered in the first direction D1. The spacing of the plurality of heat exchange tube slots 21A of the first heat exchange tube slot row is substantially the same as the spacing of the plurality of heat exchange tube slots 21B of the second heat exchange tube slot row.

[0093] exist Figure 7 , Figure 8 , Fig. 9 In the example shown, the plurality of first heat exchange tube slots 21 include a plurality of first heat exchange tube slot groups, each of which includes at least one first heat exchange tube slot 21S (see Figure 7 ); The plurality of second heat exchange tube slots 21 include a plurality of second heat exchange tube slot groups, each of which includes at least one second heat exchange tube slot 21L (see Figure 7 ); and a plurality of first heat exchange tube slot groups and a plurality of second heat exchange tube slot groups are alternately arranged in the first direction D1. Thus, the shorter first heat exchange tube slots 21S and the longer second heat exchange tube slots 21L are flexibly arranged according to specific heat exchange requirements.

[0094] exist Fig.10 and Fig.11 In the example shown, the plurality of heat exchange tube slots 21A of the first heat exchange tube slot array have the same length, and the plurality of heat exchange tube slots 21B of the second heat exchange tube slot array have the same length, but the length of the heat exchange tube slots 21A is different from the length of the heat exchange tube slots 21B. In addition, the heat exchange tube slots 21A and the heat exchange tube slots 21B may partially overlap.

[0095] exist Fig.16 In the example shown, the heat exchange tubes 1 have the same size (i.e., width Tw) in the third direction D3, and the plurality of heat exchange tube slots 21A of the first heat exchange tube slot array and the plurality of heat exchange tube slots 21B of the second heat exchange tube slot array are staggered in the first direction D1. The length of some heat exchange tube slots 21 is greater than the size (i.e., width Tw) of the heat exchange tubes inserted therein in the third direction D3.

[0096] exist Fig.17 In the example shown, the length of the heat exchange tube groove 21 is equal to the dimension of the heat exchange tube inserted therein in the third direction D3 (ie, the width Tw) or the heat exchange tube dimension of the heat exchange tube row in the third direction D3.

[0097] exist Fig.18 and Fig.19 In the example shown, the length of the plurality of heat exchange tube slots 21A of the first heat exchange tube slot row is equal to the size of the heat exchange tube inserted therein in the third direction D3 (i.e., the width Tw), while the length of the plurality of heat exchange tube slots 21B of the second heat exchange tube slot row is greater than the size of the heat exchange tube inserted therein in the third direction D3. Some heat exchange tube rows include a plurality of spaced-apart heat exchange tubes. Fig.18 In the example shown, the heat exchange tubes in the plurality of heat exchange tube slots 21B of the second heat exchange tube slot row have the same dimensions in the third direction D3. Fig.19 In the illustrated example, the heat exchange tubes in the plurality of heat exchange tube grooves 21B of the second heat exchange tube groove row have different sizes in the third direction D3.

[0098] In the embodiment of the present invention, the heat exchange tube 1 may be a flat tube or any heat exchange tube having two substantially parallel planes.

[0099] The air conditioning system according to the 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 can be the above-mentioned heat exchanger 100.

[0100] By using the heat exchanger and the air conditioning system having the heat exchanger according to the embodiment of the present invention, for example, the performance of the heat exchanger and the air conditioning system can be improved.

[0101] According to an embodiment of the present invention, the temperature of different areas of the heat exchanger in the third direction can be flexibly controlled, thereby avoiding the phenomenon of condensed water being concentrated on the windward side due to overly efficient heat exchange on the windward side of the heat exchanger, and the leeward side of the heat exchanger can be fully utilized, which not only effectively reduces wind resistance (because less condensed water is accumulated), but also balances the heat exchange efficiency of the windward side and the leeward side of the heat exchanger, thereby achieving the purpose of improving the overall efficiency of the heat exchanger.

[0102] In addition, according to the embodiments of the present invention, by using heat exchange tube grooves of different lengths and heat exchange tubes of different widths, the heat exchange efficiency of the heat exchange tubes on the windward and leeward sides of the heat exchanger can be controlled very flexibly, thereby improving the overall heat exchange performance. When the heat exchanger is used as an evaporator, the amount of condensed water generated in different heat exchange areas can be controlled by adjusting the heat exchange, which is conducive to the uniform distribution of condensed water on the overall heat exchange surface, reducing wind resistance and reducing the probability of condensed water being blown out of the heat exchanger. Improve the overall heat exchange performance.

[0103] Although the above embodiments are described, some features of the above embodiments and / or some of the above embodiments may be combined to form new embodiments.

Claims

1. A heat exchanger, comprising: A plurality of fins, each of the plurality of fins comprises: a fin body; and a plurality of heat exchange tube groove arrays formed in the fin body, each of the plurality of heat exchange tube groove arrays comprises a plurality of heat exchange tube grooves arranged along a first direction, the plurality of fins are arranged along a second direction perpendicular to the first direction, and the plurality of heat exchange tube groove arrays of each of the plurality of fins are arranged along a third direction perpendicular to the first direction and the second direction, At least two heat exchange tube grooves in the plurality of heat exchange tube groove rows of at least one fin among the plurality of fins have different lengths in the third direction.

2. The heat exchanger according to claim 1, wherein: At least two of the plurality of heat exchange tube grooves of at least one of the plurality of heat exchange tube groove rows of at least one fin among the plurality of fins have different lengths in the third direction.

3. The heat exchanger according to claim 1, wherein: At least one of the multiple heat exchange tube grooves in at least one heat exchange tube groove row of at least one fin among the multiple fins located on a first side of the heat exchanger in the third direction has a different length in the third direction from at least one of the multiple heat exchange tube grooves in at least one heat exchange tube groove row of at least one fin among the multiple fins located on a second side of the heat exchanger opposite to the first side in the third direction.

4. The heat exchanger according to claim 1, wherein: The length in the third direction of at least one of the multiple heat exchange tube grooves in at least one heat exchange tube groove row of multiple heat exchange tube grooves of at least one fin among the multiple fins located on the first side of the heat exchanger in the third direction is shorter than the length in the third direction of at least one of the multiple heat exchange tube grooves in at least one other heat exchange tube groove row of multiple heat exchange tube grooves of at least one fin among the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction.

5. The heat exchanger according to claim 1, further comprising: A heat exchange tube row is arranged in each of the plurality of heat exchange tube slots in each of the plurality of heat exchange tube slot rows, the heat exchange tube row being composed of one heat exchange tube or a plurality of heat exchange tubes, in: The length in the third direction of at least one of the multiple heat exchange tube grooves of at least one of the multiple heat exchange tube groove rows of at least one of the multiple fins is greater than the heat exchange tube size in the third direction of the heat exchange tube row inserted therein; when the heat exchange tube row is composed of one heat exchange tube, the heat exchange tube size is the size of the one heat exchange tube in the third direction; and when the heat exchange tube row is composed of multiple heat exchange tubes, the heat exchange tube size is the sum of the sizes of the multiple heat exchange tubes in the third direction.

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

7. The heat exchanger according to claim 6, wherein: An 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.

8. The heat exchanger according to claim 5, wherein: The plurality of heat exchange tube grooves of at least one of the plurality of heat exchange tube groove rows of at least one of the plurality of fins include a plurality of first heat exchange tube grooves and a plurality of second heat exchange tube grooves, and the length SL1 of the first heat exchange tube groove and the length SL2 of the second heat exchange tube groove satisfy the following relationship: SL2 ≥ n*SL1, Where n is a positive integer.

9. The heat exchanger according to claim 8, wherein: n is greater than or equal to 2.

10. The heat exchanger according to claim 8 or 9, wherein: The plurality of first heat exchange tube slots include a plurality of first heat exchange tube slot groups, and each first heat exchange tube slot group includes at least one first heat exchange tube slot; The plurality of second heat exchange tube slots include a plurality of second heat exchange tube slot groups, each of the second heat exchange tube slot groups includes at least one second heat exchange tube slot; and The plurality of first heat exchange tube slot groups and the plurality of second heat exchange tube slot groups are alternately arranged in the first direction.

11. The heat exchanger according to claim 8 or 9, wherein: The plurality of heat exchange tube rows in the plurality of heat exchange tube slots of the at least one heat exchange tube slot row in the plurality of heat exchange tube slot rows of the at least one fin among the plurality of fins have the same number and / or the same size of heat exchange tubes.

12. The heat exchanger according to claim 1 or 5, wherein: The spacing between the multiple heat exchange tube grooves of at least one heat exchange tube groove row among the multiple heat exchange tube groove rows of the multiple fins located on the first side of the heat exchanger in the third direction is different from the spacing between the multiple heat exchange tube grooves of at least another heat exchange tube groove row among the multiple heat exchange tube groove rows of the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction.

13. The heat exchanger according to claim 1 or 5, wherein: The spacing between the multiple heat exchange tube grooves of at least one heat exchange tube groove row among the multiple heat exchange tube groove rows of the multiple fins located on the first side of the heat exchanger in the third direction is greater than the spacing between the multiple heat exchange tube grooves of at least another heat exchange tube groove row among the multiple heat exchange tube groove rows of the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction.

14. The heat exchanger according to claim 5, wherein: The spacing between the multiple heat exchange tube grooves of at least one heat exchange tube groove row among the multiple heat exchange tube groove rows of the multiple fins located on the first side of the heat exchanger in the third direction is approximately the same as the spacing between the multiple heat exchange tube grooves of at least another heat exchange tube groove row among the multiple heat exchange tube groove rows of the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction.

15. The heat exchanger according to claim 14, wherein: The heat exchange tube size of at least one of the multiple heat exchange tube rows in the multiple heat exchange tube grooves of at least one heat exchange tube groove column among the multiple heat exchange tube groove columns of the multiple fins located on the first side of the heat exchanger in the third direction is different from the heat exchange tube size of at least one of the multiple heat exchange tube rows in the multiple heat exchange tube grooves of at least another heat exchange tube groove column among the multiple heat exchange tube groove columns of the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction.

16. The heat exchanger according to claim 14, wherein: The size of heat exchange tubes of at least one of the multiple rows of heat exchange tubes in the multiple heat exchange tube grooves of at least one heat exchange tube groove column among the multiple heat exchange tube groove columns of the multiple fins located on the first side of the heat exchanger in the third direction is smaller than the size of heat exchange tubes of at least one of the multiple rows of heat exchange tubes in the multiple heat exchange tube grooves of at least another heat exchange tube groove column among the multiple heat exchange tube groove columns of the multiple fins located on the second side of the heat exchanger in the third direction opposite to the first side.

17. The heat exchanger according to claim 5, wherein: The heat transfer efficiency between the one heat exchange tube or at least one heat exchange tube of at least one heat exchange tube row in the multiple heat exchange tube grooves of at least one heat exchange tube groove row located on the first side of the heat exchanger in the third direction among the multiple heat exchange tube groove rows of the multiple heat exchange tube groove rows of the multiple fins and at least one of the multiple fins is lower than the heat transfer efficiency between the one heat exchange tube or at least one heat exchange tube of at least one heat exchange tube row in the multiple heat exchange tube grooves of at least another heat exchange tube groove row located on the second side of the heat exchanger in the third direction opposite to the first side among the multiple heat exchange tube groove rows of the multiple fins and at least one of the multiple fins.

18. The heat exchanger according to claim 1 or 5, wherein: The fin body of the multiple fins includes a first fin body portion located on a first side of the heat exchanger in a third direction and a second fin body portion located on a second side of the heat exchanger in the third direction opposite to the first side, the fin includes a first window fin arranged on the first fin body portion, and a second window fin arranged on the second fin body portion, and the heat exchange efficiency of the first window fin is lower than the heat exchange efficiency of the second window fin.

19. The heat exchanger according to claim 18, wherein: The number of the first window sheets is less than the number of the second window sheets; and / or The inclination angle of the first window piece relative to the first fin main body portion is smaller than the inclination angle of the second window piece relative to the second fin main body portion.

20. The heat exchanger according to claim 1 or 5, wherein: The fin body of the multiple fins includes a first fin body portion located on a first side of the heat exchanger in a third direction and a second fin body portion located on a second side of the heat exchanger in the third direction opposite to the first side, the fin includes a second window piece arranged on the second fin body portion, and there is no window piece on the first fin body portion.

21. The heat exchanger according to claim 5, wherein: A dimension of the heat exchange tube in the third direction is greater than or equal to 6 mm and less than or equal to 20 mm.

22. The heat exchanger according to claim 5, wherein: The structural parameters of the one heat exchange tube or at least one heat exchange tube of the multiple heat exchange tube rows in the multiple heat exchange tube grooves of at least one heat exchange tube groove row located on the first side of the heat exchanger in the third direction among the multiple heat exchange tube groove rows of the multiple fins are different from the structural parameters of the one heat exchange tube or at least one heat exchange tube of the multiple heat exchange tube rows in the multiple heat exchange tube grooves of at least another heat exchange tube groove row located on the second side of the heat exchanger in the third direction opposite to the first side.

23. The heat exchanger according to claim 22, wherein: The structural parameters include at least one of a size of the heat exchange tube in the first direction, the number of holes of the heat exchange tube, a diameter of the holes of the heat exchange tube, and a thickness of partition walls between the holes of the heat exchange tube.

24. The heat exchanger of claim 1, wherein: The multiple heat exchange tube grooves of at least one heat exchange tube groove row of the multiple heat exchange tube groove rows of at least one fin among the multiple fins located on the first side of the heat exchanger in the third direction and the multiple heat exchange tube grooves of at least another heat exchange tube groove row of the multiple heat exchange tube groove rows of at least one fin among the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction are alternately arranged in the first direction.

25. The heat exchanger of claim 1, wherein: At least one of the multiple heat exchange tube grooves of at least one heat exchange tube groove row of the multiple heat exchange tube groove rows of the multiple fins located on the first side of the heat exchanger in the third direction and at least one of the multiple heat exchange tube grooves of at least another heat exchange tube groove row of the multiple heat exchange tube groove rows of the multiple fins located on the second side of the heat exchanger opposite to the first side in the third direction are staggered in the first direction and partially overlap when viewed in the first direction.

26. The heat exchanger according to claim 3 or 4, wherein: The heat exchange tube grooves of the heat exchange tube groove array of the fin have a first groove edge and a second groove edge, the first groove edge and the second groove edge are located at the outermost sides of the heat exchange tube grooves in the third direction, and in the third direction, the first groove edge of the heat exchange tube groove of the fin is closer to the first side of the heat exchanger in the third direction than the second groove edge of the heat exchange tube groove of the fin; and The first groove edges of the multiple heat exchange tube grooves of at least one of the multiple heat exchange tube groove rows of the multiple fins are roughly aligned with each other in the third direction, and / or the second groove edges of the multiple heat exchange tube grooves of at least one of the multiple heat exchange tube groove rows of the multiple fins are roughly aligned with each other in the third direction.

27. The heat exchanger according to claim 3 or 4, wherein: The plurality of heat exchange tube grooves of at least one heat exchange tube groove row among the plurality of heat exchange tube groove rows of the plurality of fins have substantially the same size in the third direction.

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

29. The heat exchanger of claim 1, wherein: The plurality of heat exchange tube slot arrays of the plurality of fins include a first heat exchange tube slot array and a second heat exchange tube slot array respectively located at a first side and a second side opposite to each other in a third direction of the heat exchanger.

30. The heat exchanger of claim 29, wherein: The heat exchange tube grooves of the first heat exchange tube groove row of the plurality of fins are open toward the first side of the heat exchanger, and the heat exchange tube grooves of the second heat exchange tube groove row of the plurality of fins are open toward the second side of the heat exchanger.

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

32. The heat exchanger of claim 29, wherein: At least one of the plurality of heat exchange tube grooves in the first heat exchange tube groove row of the plurality of fins and at least one of the plurality of heat exchange tube grooves in the second heat exchange tube groove row of the plurality of fins are offset from each other in the first direction.

33. The heat exchanger of claim 29, wherein: At least one of the plurality of heat exchange tube slots of the first heat exchange tube slot array of the plurality of fins and at least one of the plurality of heat exchange tube slots of the second heat exchange tube slot array of the plurality of fins are substantially aligned with each other in the first direction.

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

35. The heat exchanger of claim 29, wherein: The plurality of heat exchange tube grooves of the first heat exchange tube groove row of the plurality of fins are substantially aligned with each other in the third direction, and / or the plurality of heat exchange tube grooves of the second heat exchange tube groove row of the plurality of fins are substantially aligned with each other in the third direction.

36. The heat exchanger of claim 29, wherein: The heat exchange tube grooves of the heat exchange tube groove array of the fin have a first groove edge and a second groove edge, the first groove edge and the second groove edge are located at the outermost sides of the heat exchange tube grooves in the third direction, and in the third direction, the first groove edge of the heat exchange tube groove of the fin is closer to the first side of the heat exchanger in the third direction than the second groove edge of the heat exchange tube groove of the fin; and The second groove edges of the plurality of heat exchange tube grooves of the first heat exchange tube groove row of the plurality of fins are roughly aligned with each other in the third direction, and / or the first groove edges of the plurality of heat exchange tube grooves of the second heat exchange tube groove row of the plurality of fins are roughly aligned with each other in the third direction.

37. The heat exchanger according to claim 29, further comprising: A heat exchange tube row is arranged in each of the plurality of heat exchange tube slots in each of the plurality of heat exchange tube slot rows, the heat exchange tube row being composed of one heat exchange tube or a plurality of heat exchange tubes, in: The length of at least one heat exchange tube groove of the plurality of heat exchange tube grooves of the first heat exchange tube groove row of at least one fin among the plurality of fins in the third direction is greater than the heat exchange tube size of the heat exchange tube row inserted therein in the third direction, and when the heat exchange tube row is composed of one heat exchange tube, the heat exchange tube size is the size of the one heat exchange tube in the third direction, and when the heat exchange tube row is composed of multiple heat exchange tubes, the heat exchange tube size is the sum of the sizes of the multiple heat exchange tubes in the third direction, and / or The length of at least one of the plurality of heat exchange tube grooves of the second heat exchange tube groove row of the at least one fin among the plurality of fins in the third direction is greater than the size of the heat exchange tube of the heat exchange tube row inserted therein in the third direction.

38. The heat exchanger according to claim 29, further comprising: A heat exchange tube row is arranged in each of the plurality of heat exchange tube slots in each of the plurality of heat exchange tube slot rows, the heat exchange tube row being composed of one heat exchange tube or a plurality of heat exchange tubes, in: The length in the third direction of at least one heat exchange tube slot of the plurality of heat exchange tube slots of the first heat exchange tube slot row of at least one fin among the plurality of fins is substantially equal to the heat exchange tube size in the third direction of the heat exchange tube row inserted therein, and when the heat exchange tube row is composed of one heat exchange tube, the heat exchange tube size is the size of the one heat exchange tube in the third direction, and when the heat exchange tube row is composed of multiple heat exchange tubes, the heat exchange tube size is the sum of the sizes of the multiple heat exchange tubes in the third direction, and / or The length in the third direction of at least one of the plurality of heat exchange tube grooves of the second heat exchange tube groove row of the at least one fin among the plurality of fins is substantially equal to the heat exchange tube size in the third direction of the heat exchange tube row inserted therein.

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

40. The heat exchanger of claim 39, wherein: The heat exchange tubes of the plurality of heat exchange tube arrays include a first end portion located on one side of the heat exchange tube in the second direction and a second end portion located on the other side of the heat exchange tube in the second direction; and The heat exchanger further includes: a first header connected to the first end of the heat exchange tube and in fluid communication; and a second header connected to the second end of the heat exchange tube and in fluid communication.

41. The heat exchanger of claim 39, wherein: The heat exchange tubes of the plurality of heat exchange tube arrays include a first end portion located on one side of the heat exchange tube in the second direction and a second end portion located on the other side of the heat exchange tube in the second direction; and The heat exchanger also includes: a first header interconnected with and fluidically connected to the first ends of the heat exchange tubes of the plurality of heat exchange tube columns; and two second headers, one of the two second headers being connected with and fluidically connected to the second ends of the heat exchange tubes of at least one of the plurality of heat exchange tube columns, and the other of the two second headers being connected with and fluidically connected to the second ends of the heat exchange tubes of at least another of the plurality of heat exchange tube columns.

42. The heat exchanger of claim 39, wherein: The heat exchange tubes of the plurality of heat exchange tube arrays include a first end portion located on one side of the heat exchange tube in the second direction and a second end portion located on the other side of the heat exchange tube in the second direction; and The heat exchanger also includes: a connecting portion, through which the first end of the heat exchange tube of one of the multiple heat exchange tube columns is interconnected and fluidically connected with the first end of the heat exchange tube of another of the multiple heat exchange tube columns; and two second headers, one of the two second headers is connected to the second end of the heat exchange tube of the one heat exchange tube column and fluidically connected, and the other of the two second headers is connected to the second end of the heat exchange tube of the other heat exchange tube column and fluidically connected.

43. The heat exchanger of claim 42, wherein: The connecting portion is a plurality of connecting tubes, through which the first ends of the heat exchange tubes of the one heat exchange tube row are respectively connected to the first ends of the heat exchange tubes of the other heat exchange tube row and are in fluid communication.

44. The heat exchanger of claim 43, wherein: The heat exchange tubes of the one heat exchange tube row, the connecting tubes, and the heat exchange tubes of the other heat exchange tube row that are connected to each other are formed by a tube bend.

45. The heat exchanger of claim 39, wherein: The heat exchange tubes of the plurality of heat exchange tube arrays include a first end portion located on one side of the heat exchange tube in the second direction and a second end portion located on the other side of the heat exchange tube in the second direction; and The heat exchanger also includes: two first headers and two second headers, one of the two first headers and one of the two second headers are respectively connected to the first end and the second end of the heat exchange tubes of at least one heat exchange tube column among the multiple heat exchange tube columns and are fluidically connected, and the other one of the two first headers and the other one of the two second headers are respectively connected to the first end and the second end of the heat exchange tubes of at least another heat exchange tube column among the multiple heat exchange tube columns and are fluidically connected.

46. ​​The heat exchanger of claim 5, wherein: In use, at least a portion of the heat exchange tubes extends substantially vertically.

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

48. An air conditioning system, comprising: A heat exchanger according to any one of claims 1 to 47.

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