Heat exchangers, bent heat exchangers and air conditioning systems

Abstract

The present invention discloses a heat exchanger, a bent heat exchanger formed by bending the heat exchanger, and an air conditioning system having the heat exchanger or the bent heat exchanger. The heat exchanger includes: a plurality of heat exchange tube rows arranged along a first direction; and a plurality of fins arranged along a second direction perpendicular to the first direction. Each of the plurality of fins includes a fin body and a plurality of heat exchange tube grooves formed in the fin body, and one or more heat exchange tubes of each of the plurality of heat exchange tube rows are inserted into one of the plurality of heat exchange tube grooves; and the length of at least one heat exchange tube groove of the plurality of heat exchange tube grooves of at least one fin in the plurality of fins in a third direction perpendicular to the first direction and the second direction is greater than the size of the heat exchange tube of the heat exchange tube row inserted therein in the third direction to form a gap for water to pass through in the at least one heat exchange tube groove, thereby improving the performance of the heat exchanger, the bent heat exchanger, and the air conditioning system.

Description

Technical Field

[0001] Embodiments of the present invention relate to a heat exchanger, a bent heat exchanger formed by bending the heat exchanger, and an air conditioning system having the heat exchanger or the bent 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 an embodiment of the present invention is to provide a heat exchanger, a bent heat exchanger formed by bending the heat exchanger, and an air conditioning system having the heat exchanger or the bent heat exchanger, thereby, for example, improving the performance of the heat exchanger, the bent heat exchanger, and the air conditioning system.

[0004] An embodiment of the present invention provides a heat exchanger, comprising: a plurality of heat exchange tube rows arranged along a first direction, each heat exchange tube row consisting of one heat exchange tube or a plurality of heat exchange tubes; and a plurality of fins arranged along a second direction perpendicular to the first direction, wherein: each of the plurality of fins comprises a fin body and a plurality of heat exchange tube grooves formed in the fin body, the one heat exchange tube or the plurality of heat exchange tubes of each of the plurality of heat exchange tube rows being inserted into one of the plurality of heat exchange tube grooves; and a length of at least one heat exchange tube groove of the plurality of heat exchange tube grooves of at least one fin among the plurality of fins in a third direction perpendicular to the first direction and the second direction is greater than a size of the heat exchange tube of the heat exchange tube row inserted therein in the third direction so as to form a gap for water to pass through in the at least one heat exchange tube groove, and in a case where 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 in a case where the heat exchange tube row consists of a plurality of heat exchange tubes, the size of the heat exchange tube is the sum of the sizes of the plurality of heat exchange tubes in the third direction.

[0005] According to an embodiment of the present invention, the fins and heat exchange tubes of the heat exchanger satisfy the following relationship:

[0006]

[0007] Where: W f is the width of the fin in the third direction, L f is the length of the fin in the first direction, W si is the length of the ith heat exchange tube slot from one side of the heat exchanger to the other side in the first direction, T si is the width of the ith heat exchange tube slot from one side of the heat exchanger to the other side in the first direction, Pf is the pitch of the fins, T f is the thickness of the fin body of the fin, Wtij It is the dimension in the third direction of the jth heat exchange tube in the i-th heat exchange tube groove from one side to the other side of the heat exchanger in the first direction from the first side to the second side of the heat exchanger. When the heat exchange tube row consists of one heat exchange tube, j=1, and R is a predetermined value.

[0008] According to an embodiment of the present invention, the predetermined value R is equal to 150.

[0009] According to an embodiment of the present invention, at least one heat exchange tube row is composed of a plurality of heat exchange tubes, and a gap is provided between at least two adjacent heat exchange tubes among the plurality of heat exchange tubes.

[0010] According to an embodiment of the present invention, the heat exchange tube includes a first tube edge and a second tube edge, the first tube edge and the second tube edge of the heat exchange tube are located at the outermost side of the heat exchange tube in the third direction, and the heat exchanger has a first side and a second side opposite to each other in the third direction, and in the third direction, the first tube edge of the heat exchange tube is closer to the first side of the heat exchanger than the second tube edge of the heat exchange tube; the heat exchange tube groove of the fin includes a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second tube edge of the heat exchange tube groove of the fin. The second groove edge is closer to the first side of the heat exchanger; and in the third direction, there is a gap between the first groove edge of at least one heat exchange tube groove of at least one fin among the multiple fins and the first tube edge of the one heat exchange tube of the heat exchange tube row inserted therein or the one heat exchange tube closest to the first groove edge among the multiple heat exchange tubes; and / or in the third direction, there is a gap between the second groove edge of at least one heat exchange tube groove of the multiple heat exchange tube grooves of at least one fin among the multiple fins and the second tube edge of the one heat exchange tube of the heat exchange tube row inserted therein or the one heat exchange tube closest to the second groove edge among the multiple heat exchange tubes.

[0011] According to an embodiment of the present invention, at least in the middle of the gap in the third direction, the size of the gap in the first direction is equal to the width of the heat exchange tube groove; and / or the size of the gap in at least one of the multiple heat exchange tube grooves in the third direction is greater than or equal to the size of the heat exchange tube in the heat exchange tube row in the at least one heat exchange tube groove or one of the multiple heat exchange tubes in the third direction.

[0012] According to an embodiment of the present invention, the heat exchange tube includes a first tube edge and a second tube edge, the first tube edge and the second tube edge of the heat exchange tube are located at the outermost side of the heat exchange tube in a third direction, and the heat exchanger has a first side and a second side opposite to each other in the third direction, and in the third direction, the first tube edge of the heat exchange tube is closer to the first side of the heat exchanger than the second tube edge of the heat exchange tube; the heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; the heat exchange tubes of a plurality of heat exchange tube rows include a plurality of heat exchange tube columns arranged in the third direction, and each of the plurality of heat exchange tube columns includes a plurality of heat exchange tubes arranged in the first direction.

[0013] According to an embodiment of the present invention, the orthographic projections of the heat exchange tubes of two adjacent heat exchange tube rows in a plane perpendicular to the first direction are spaced apart in the third direction.

[0014] According to an embodiment of the present invention, the heat exchange tubes of two adjacent heat exchange tube rows are staggered with each other in the third direction.

[0015] According to an embodiment of the present invention, at least some of the heat exchange tube grooves of at least some of the multiple fins and the heat exchange tubes of the heat exchange tube rows inserted therein form a plurality of gaps for drainage, and the plurality of gaps include a plurality of gap columns arranged in a third direction, and each of the plurality of gap columns includes a plurality of gaps arranged in a first direction.

[0016] According to an embodiment of the present invention, the gaps in at least two adjacent heat exchange tube grooves are staggered with each other in the third direction.

[0017] According to an embodiment of the present invention, a plurality of heat exchange tube rows are arranged in sequence from the first side to the second side of the heat exchanger in the third direction; and in the third direction, there is a gap between the first groove edge of the heat exchange tube groove and the first tube edge of the heat exchange tube of the second heat exchange tube row among the plurality of heat exchange tube rows inserted therein.

[0018] According to an embodiment of the present invention, in the third direction, the first groove edge of the heat exchange tube groove and the first tube edge of the heat exchange tube of the first heat exchange tube row among the plurality of heat exchange tube rows inserted therein are substantially aligned with each other.

[0019] According to an embodiment of the present invention, a plurality of heat exchange tube rows are arranged in sequence from the second side to the first side of the heat exchanger in the third direction; and in the third direction, there is a gap between the second groove edge of the heat exchange tube groove and the second tube edge of the heat exchange tube of the second heat exchange tube row among the plurality of heat exchange tube rows inserted therein.

[0020] According to an embodiment of the present invention, in the third direction, the second groove edge of the heat exchange tube groove and the second tube edge of the heat exchange tube of the first heat exchange tube row among the plurality of heat exchange tube rows inserted therein are substantially aligned with each other.

[0021] According to an embodiment of the present invention, a plurality of heat exchange tube rows are arranged sequentially from a first side to a second side of a heat exchanger in a third direction; and first groove edges of some heat exchange tube grooves of heat exchange tubes of a second heat exchange tube row inserted into the plurality of heat exchange tube rows are closer to the second side of the heat exchanger than first groove edges of other heat exchange tube grooves of heat exchange tubes of a first heat exchange tube row inserted into the plurality of heat exchange tube rows.

[0022] According to an embodiment of the present invention, a plurality of void columns are arranged in sequence from the second side to the first side of the heat exchanger in a third direction; the voids of odd-numbered void columns in the plurality of void columns are formed in some of the plurality of heat exchange tube grooves, and the voids of even-numbered void columns in the plurality of void columns are formed in other of the plurality of heat exchange tube grooves; and the some of the heat exchange tube grooves and the other heat exchange tube grooves are alternately arranged in the first direction.

[0023] According to an embodiment of the present invention, the heat exchange tubes of odd-numbered heat exchange tube columns among a plurality of heat exchange tube columns are arranged in some heat exchange tube grooves among a plurality of heat exchange tube grooves, and the heat exchange tubes of even-numbered heat exchange tube columns among a plurality of heat exchange tube columns are arranged in other heat exchange tube grooves among a plurality of heat exchange tube grooves; and the some heat exchange tube grooves and the other heat exchange tube grooves are alternately arranged in a first direction.

[0024] According to an embodiment of the present invention, in the third direction, the first tube edges of the heat exchange tubes of at least one of the multiple heat exchange tube rows are roughly aligned with each other and / or the second tube edges of the heat exchange tubes of at least one of the multiple heat exchange tube rows are roughly aligned with each other.

[0025] According to an embodiment of the present invention, the heat exchange tubes of at least one heat exchange tube row among the plurality of heat exchange tube rows have substantially the same size in the third direction.

[0026] According to an embodiment of the present invention, the heat exchange tube includes a first tube edge and a second tube edge, the first tube edge and the second tube edge of the heat exchange tube are located at the outermost side of the heat exchange tube in a third direction, and the heat exchanger has a first side and a second side opposite to each other in the third direction, and in the third direction, the first tube edge of the heat exchange tube is closer to the first side of the heat exchanger than the second tube edge of the heat exchange tube; and the first tube edge of the one heat exchange tube of at least one of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes and the first tube edge of the one heat exchange tube of at least another of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes are staggered in the third direction; and / or the second tube edge of the one heat exchange tube of at least one of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes and the second tube edge of the one heat exchange tube of at least another of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes are staggered in the third direction.

[0027] According to an embodiment of the present invention, the heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; and the first groove edge of at least one heat exchange tube groove of the multiple heat exchange tube grooves of at least one fin among the multiple fins and the first groove edge of at least another heat exchange tube groove of the multiple heat exchange tube grooves of the at least one fin among the multiple fins are staggered with each other in the third direction.

[0028] According to an embodiment of the present invention, the second groove edge of at least one of the multiple heat exchange tube grooves of at least one fin among the multiple fins and the second groove edge of at least another heat exchange tube groove of the multiple heat exchange tube grooves of at least one fin among the multiple fins are staggered in the third direction.

[0029] According to an embodiment of the present invention, the second groove edge of at least one of the multiple heat exchange tube grooves of at least one of the multiple fins and the second groove edge of at least another of the multiple heat exchange tube grooves of at least one of the multiple fins are roughly aligned with each other in the third direction.

[0030] According to an embodiment of the present invention, first groove edges of the heat exchange tube grooves of the plurality of fins are substantially aligned with each other in the third direction, and second groove edges of the heat exchange tube grooves of the plurality of fins are substantially aligned with each other in the third direction.

[0031] According to an embodiment of the present invention, the heat exchange tube grooves of the plurality of fins have substantially the same size in the third direction.

[0032] According to an embodiment of the present invention, the heat exchange tubes of a plurality of 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 collecting pipe connected to and fluidically connected with the first ends of the heat exchange tubes of the plurality of heat exchange tube rows; and a second collecting pipe connected to and fluidically connected with the second ends of the heat exchange tubes of the plurality of heat exchange tube rows.

[0033] According to an embodiment of the present invention, the heat exchange tubes of a plurality of heat exchange tube rows 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: 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.

[0034] According to an embodiment of the present invention, the heat exchange tubes of a plurality of heat exchange tube rows 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: a connecting portion, through which the first end of the heat exchange tube of one of the plurality of heat exchange tube columns is interconnected and fluidically connected with the first end of the heat exchange tube 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 of the heat exchange tube 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 of the heat exchange tube of the other heat exchange tube column.

[0035] 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.

[0036] 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.

[0037] According to an embodiment of the present invention, the heat exchange tubes of a plurality of heat exchange tube rows 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 tubes and two second collecting tubes, one of the two first collecting tubes and one of the two second collecting tubes 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 tubes and the other of the two second collecting tubes 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.

[0038] According to an embodiment of the present invention, in the third direction, the heat exchange tubes of each heat exchange tube row in the plurality of heat exchange tube rows are spaced apart from the heat exchange tubes of an adjacent heat exchange tube row in the plurality of heat exchange tube rows.

[0039] According to an embodiment of the present invention, when viewed in the first direction, the fin bodies of the plurality of fins are inclined relative to the third direction.

[0040] According to an embodiment of the present invention, when viewed in the first direction, an angle between a fin body of the plurality of fins and the third direction is less than or equal to 45 degrees.

[0041] According to an embodiment of the present invention, the heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin are located at the outermost sides 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 than the second groove edge of the heat exchange tube groove of the fin; and each of the multiple fins also includes a fin segment extending from the edge of the fin body on the first side of the heat exchanger along the third direction.

[0042] According to an embodiment of the present invention, at least two of the multiple heat exchange tube grooves of at least one fin among the multiple fins have approximately the same size in the third direction and the heat exchange tubes of the heat exchange tube rows inserted in the at least two heat exchange tube grooves have approximately the same size in the third direction.

[0043] According to an embodiment of the present invention, at least two of the multiple heat exchange tube grooves of at least one fin among the multiple fins have approximately the same size in the third direction and the heat exchange tubes of the heat exchange tube rows inserted in the at least two heat exchange tube grooves have different sizes in the third direction.

[0044] According to an embodiment of the present invention, at least two of the multiple heat exchange tube grooves of at least one fin among the multiple fins have different sizes in the third direction and the heat exchange tubes of the heat exchange tube rows inserted in the at least two heat exchange tube grooves have approximately the same size in the third direction.

[0045] According to an embodiment of the present invention, at least two of the multiple heat exchange tube grooves of at least one fin among the multiple fins have different sizes in the third direction and the heat exchange tubes of the heat exchange tube rows inserted in the at least two heat exchange tube grooves have different sizes in the third direction.

[0046] According to an embodiment of the present invention, the heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; and the heat exchange tube grooves of multiple fins are open toward the second side of the heat exchanger.

[0047] According to an embodiment of the present invention, in use, at least a portion of the heat exchange tube extends substantially vertically.

[0048] According to an embodiment of the invention, at least some of the fins are each formed from a plate.

[0049] An embodiment of the present invention further provides a bent heat exchanger, which is formed by bending the above-mentioned heat exchanger.

[0050] An embodiment of the present invention further provides an air conditioning system, comprising: the above-mentioned heat exchanger or bent heat exchanger.

[0051] By using the heat exchanger, the bent heat exchanger and the air conditioning system having the heat exchanger or the bent heat exchanger according to the embodiments of the present invention, for example, the performance of the heat exchanger, the bent heat exchanger and the air conditioning system can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

[0053] Figure 2 for Figure 1 A schematic front view of the heat exchanger shown;

[0054] Figure 3 for Figure 1 A schematic right side view of the heat exchanger shown;

[0055] Figure 4 for Figure 1 A schematic left side view of the heat exchanger shown;

[0056] Figure 5 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

[0057] Figure 6 for Figure 5A schematic front view of the heat exchanger shown;

[0058] Figure 7 for Figure 5 A schematic right side view of the heat exchanger shown;

[0059] Figure 8 for Figure 5 A schematic left side view of the heat exchanger shown;

[0060] Fig. 9 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

[0061] Fig.10 for Fig. 9 A schematic front view of the heat exchanger shown;

[0062] Fig.11 for Fig. 9 A schematic right side view of the heat exchanger shown;

[0063] Fig.12 for Fig. 9 A schematic left side view of the heat exchanger shown;

[0064] Fig.13 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

[0065] Fig.14 for Fig.13 A schematic front view of the heat exchanger shown;

[0066] Fig.15 for Fig.13 A schematic right side view of the heat exchanger shown;

[0067] Fig.16 for Fig.13 A schematic left side view of the heat exchanger shown;

[0068] Fig.17 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

[0069] Fig.18 for Fig.17 A schematic front view of the heat exchanger shown;

[0070] Fig.19 for Fig.17 A schematic right side view of the heat exchanger shown;

[0071] Fig. 20 for Fig.17 A schematic left side view of the heat exchanger shown;

[0072] Fig.21 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

[0073] Fig. 22 for Fig.21 A schematic front view of the heat exchanger shown;

[0074] Fig.23 for Fig.21 A schematic right side view of the heat exchanger shown;

[0075] Fig.24 for Fig.21 A schematic left side view of the heat exchanger shown;

[0076] Fig.25 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

[0077] Fig.26 for Fig.25 A schematic front view of the heat exchanger shown;

[0078] Fig. 27 for Fig.25 A schematic right side view of the heat exchanger shown;

[0079] Fig.28 for Fig.25 A schematic left side view of the heat exchanger shown;

[0080] Fig.29 for Figure 1 , Figure 5 , Fig. 9 , Fig.13 , Fig.17 , Fig.21 , Fig.25 A schematic right side view of the fins of the heat exchanger shown;

[0081] Fig.30 for Fig.29 A schematic top view of the fins of the heat exchanger shown;

[0082] Fig.31 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0083] Fig.32 for Fig.31 The heat exchanger shown Fig.31 A schematic cross-sectional bottom view taken along line AA in FIG.

[0084] Fig.33 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0085] Fig.34 for Fig.33 The heat exchanger shown Fig.33 A schematic cross-sectional bottom view taken along line BB in FIG.

[0086] Fig.35 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0087] Fig.36 for Fig.35 The heat exchanger shown Fig.35 A schematic cross-sectional bottom view taken along line CC in FIG.

[0088] Fig.37 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0089] Fig.38 for Fig.37 The heat exchanger shown Fig.37 A schematic cross-sectional bottom view taken along line DD in FIG.

[0090] Fig.39 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0091] Fig.40 for Fig.39 The heat exchanger shown Fig.39 A schematic cross-sectional bottom view taken along line EE in FIG.

[0092] Fig.41 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0093] Fig.42 for Fig.41 The heat exchanger shown Fig.41 A schematic cross-sectional bottom view taken along line FF in FIG.

[0094] Fig.43 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0095] Fig.44 for Fig.43 The heat exchanger shown Fig.43 A schematic cross-sectional bottom view taken along line GG in FIG.

[0096] Fig.45 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0097] Fig.46 for Fig.45 The heat exchanger shown Fig.45 A schematic cross-sectional bottom view taken along line HH in FIG.

[0098] Fig.47 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0099] Fig.48 for Fig.47 The heat exchanger shown Fig.47 A schematic cross-sectional bottom view taken along line II in FIG.

[0100] Fig.49 A schematic right side view of a heat exchanger with only a portion of heat exchange tubes and one fin retained according to an embodiment of the present invention;

[0101] Fig.50 for Fig.49 The heat exchanger shown Fig.49 A schematic cross-sectional bottom view taken along line JJ in FIG.

[0102] Fig.51 is a schematic perspective view of a bent heat exchanger according to an embodiment of the present invention; and

[0103] Fig.52 for Fig.51 A schematic top view of a portion of a bent heat exchanger is shown. DETAILED DESCRIPTION

[0104] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0105] See also Figures 1 to 50The heat exchanger 100 according to the embodiment of the present invention includes: a plurality of heat exchange tube rows arranged along a first direction D1, each heat exchange tube row consisting of one heat exchange tube 1 or a plurality of heat exchange tubes 1; and a plurality of fins 2 arranged along a second direction D2 perpendicular to the first direction D1. Each of the multiple fins 2 includes a fin body 20 and a plurality of heat exchange tube grooves 21 formed in the fin body 20, and the one heat exchange tube 1 or the multiple heat exchange tubes 1 of each heat exchange tube row in the multiple heat exchange tube rows are inserted into one heat exchange tube groove 21 among the multiple heat exchange tube grooves 21; and the length of at least one heat exchange tube groove 21 of the multiple heat exchange tube grooves 21 of at least one fin 2 in the multiple fins 2 in the third direction D3 perpendicular to the first direction D1 and the second direction D2 is greater than the heat exchange tube size of the heat exchange tube row inserted therein in the third direction D3 to form a gap 5 for water to pass through in the at least one heat exchange tube groove 21, 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. For example, the gap 5 forms a drainage channel through which the defrost water can flow away quickly, thereby improving the performance of the heat exchanger under frosting conditions.

[0106] See also Figures 1 to 50 In the embodiment of the present invention, the volume V of the defrost water generated by the heat exchanger 100 can be calculated as follows: g and the volume V of the drainage channel of the heat exchanger 100 p :

[0107]

[0108]

[0109] in:

[0110] W f is the width of fin 2 in the third direction D3,

[0111] L f is the length of the fin 2 in the first direction D1,

[0112] W si is the length of the i-th heat exchange tube slot 21 from one side to the other side of the heat exchanger 100 in the first direction D1,

[0113] T si is the width of the i-th heat exchange tube groove 21 from one side to the other side of the heat exchanger 100 in the first direction D1,

[0114] P f is the spacing of fin 2,

[0115] T f is the thickness of the fin body 20 of the fin 2,

[0116] W tij is the dimension of the jth heat exchange tube 1 in the heat exchange tube row in the i-th heat exchange tube slot 21 from one side to the other side of the heat exchanger 100 in the third direction D3 from the first side S1 to the second side S2 of the heat exchanger 100 in the third direction D3. When the heat exchange tube row consists of one heat exchange tube 1, j=1.

[0117] h is the size of the range in which the plurality of fins 2 are arranged along the second direction D2, and

[0118] θ is the angle between the fin body 20 of the fin 2 and the third direction D3.

[0119] According to an embodiment of the present invention, the volume Vg of the defrost water generated by the heat exchanger 100 is equal to the volume V of the drainage channel of the heat exchanger 100. p The ratio can satisfy the following relationship:

[0120]

[0121] Wherein: R is a predetermined value, for example, R may be equal to 90, 110, 130, 150, 170, 190, 210, etc., or may be within a certain range, for example, within a range of 80 to 260.

[0122] The volume V of the defrost water generated by the heat exchanger 100 is g and the volume V of the drainage channel of the heat exchanger 100 p Substituting into the above relationship, we can get the following relationship:

[0123]

[0124] The fins 2 and the heat exchange tubes 1 of the heat exchanger 100 can satisfy the relationship to ensure a suitable defrost water discharge flow rate. When the heat exchanger 100 is used, when the volume of the generated defrost water is larger, the volume of the drainage channel is smaller, and the defrost water is discharged more slowly, and when the volume of the generated defrost water is smaller, the volume of the drainage channel is larger, and the defrost water is discharged faster. According to an embodiment of the present invention, the ratio of the volume of the generated defrost water to the volume of the drainage channel is less than a predetermined value, thereby ensuring a suitable defrost water discharge flow rate.

[0125] See also Figures 1 to 50In use, at least a portion of the heat exchange tube 1 may extend substantially vertically, for example, the heat exchange tube 1 may extend 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. In an embodiment of the present invention, at least one heat exchange tube row is composed of a plurality of heat exchange tubes 1, and a gap 5 may be provided between at least two adjacent heat exchange tubes 1 among the plurality of heat exchange tubes 1. In an embodiment of the present invention, at least in the middle of the gap 5 in the third direction D3, the size of the gap 5 in the first direction D1 is equal to the width of the heat exchange tube groove 21. That is, at least in the middle of the gap 5, the gap 5 occupies the width of the entire heat exchange tube groove 21, thereby ensuring that water can pass through the gap 5, the gap 5 will not be blocked or partially blocked by solder during welding, and preventing water from failing to quickly flow through the gap 5 when the gap 5 is too small or solder exists in the gap 5. In an embodiment of the present invention, a size in the third direction D3 of the gap 5 in at least one heat exchange tube groove 21 among the multiple heat exchange tube grooves 21 is greater than or equal to a size in the third direction D3 of the one heat exchange tube 1 in the heat exchange tube row in the at least one heat exchange tube groove 21 or one heat exchange tube 1 among the multiple heat exchange tubes 1.

[0126] See also Figures 1 to 50 In an embodiment of the present invention, the heat exchange tube 1 includes a first tube edge 11 and a second tube edge 12, the first tube edge 11 and the second tube edge 12 of the heat exchange tube 1 are located at the outermost side of the heat exchange tube 1 in the third direction D3, and the heat exchanger 100 has a first side S1 and a second side S2 opposite to each other in the third direction D3, and in the third direction D3, the first tube edge 11 of the heat exchange tube 1 is closer to the first side S1 of the heat exchanger 100 than the second tube edge 12 of the heat exchange tube 1; the heat exchange tube groove 21 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 of the heat exchange tube groove 21 of the fin 2 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 than the second groove edge 212 of the heat exchange tube groove 21 of the fin 2. The heat exchange tube grooves 21 of the plurality of fins 2 may be open toward the second side S2 of the heat exchanger 100, or the heat exchange tube grooves 21 of the plurality of fins 2 may not be open and may be closed heat exchange tube grooves. Each of at least some of the fins 2 may be formed by a plate. For example, all of the fins 2 may be formed by a plate.

[0127] See also Figures 31 to 50In an embodiment of the present invention, in the third direction D3, the one heat exchange tube 1 or the multiple heat exchange tubes 1 of the heat exchange tube row may be located between the first groove edge 211 and the second groove edge 212 of the heat exchange tube groove 21 of the fin 2. In the third direction D3, there is a gap 5 between the first groove edge 211 of at least one heat exchange tube groove 21 of the multiple heat exchange tube grooves 21 of at least one fin 2 of the multiple fins 2 and the first tube edge 11 of the one heat exchange tube 1 of the heat exchange tube row inserted therein or the one heat exchange tube 1 of the multiple heat exchange tubes 1 closest to the first groove edge 211; and / or in the third direction D3, there is a gap 5 between the second groove edge 212 of at least one heat exchange tube groove 21 of the multiple heat exchange tube grooves 21 of at least one fin 2 of the multiple fins 2 and the second tube edge 12 of the one heat exchange tube 1 of the heat exchange tube row inserted therein or the one heat exchange tube 1 of the multiple heat exchange tubes 1 closest to the second groove edge 212.

[0128] See also Figures 1 to 34 , Figures 41 to 50 In an embodiment of the present invention, in the third direction D3, the one heat exchange tube 1 or the plurality of heat exchange tubes 1 of the heat exchange tube row may be located between the first groove edge 211 and the second groove edge 212 of the heat exchange tube groove 21 of the fin 2. The heat exchange tubes 1 of the plurality of heat exchange tube rows include a plurality of heat exchange tube columns arranged in the third direction D3, and each of the plurality of heat exchange tube columns includes a plurality of heat exchange tubes 1 arranged in the first direction D1. For example, the first heat exchange tube column includes a plurality of heat exchange tubes 1A, the second heat exchange tube column includes a plurality of heat exchange tubes 1B, the third heat exchange tube column includes a plurality of heat exchange tubes 1C, the fourth heat exchange tube column includes a plurality of heat exchange tubes 1D, and so on. According to one example of the present invention, the orthographic projections of the heat exchange tubes 1 of two adjacent heat exchange tube rows in a plane perpendicular to the first direction D1 are spaced apart in the third direction D3. According to another example of the present invention, the heat exchange tubes 1 of two adjacent heat exchange tube rows are staggered from each other in the third direction D3. The heat exchange tubes 1 of at least one of the plurality of heat exchange tube rows may have substantially the same size in the third direction D3. In the third direction D3, the heat exchange tubes 1 of each of the plurality of heat exchange tube rows may be spaced apart from the heat exchange tubes 1 of the adjacent heat exchange tube rows in the plurality of heat exchange tube rows.

[0129] See also Figure 31 to Figure 36 , Figures 41 to 50 In an embodiment of the present invention, at least some heat exchange tube grooves 21 of at least some of the plurality of fins 2 and the heat exchange tubes 1 of the heat exchange tube row inserted therein form a plurality of gaps 5 for drainage, and the plurality of gaps 5 include a plurality of gap columns arranged in the third direction D3, and each of the plurality of gap columns includes a plurality of gaps 5 arranged in the first direction D1. According to an example of the present invention, the gaps 5 in at least two adjacent heat exchange tube grooves 21 are staggered with each other in the third direction D3.

[0130] See also Figure 31 to Figure 34 , Figure 41 to Figure 44 , Figure 47 to Figure 48 In an embodiment of the present invention, a plurality of heat exchange tube arrays are sequentially arranged from the first side S1 to the second side S2 of the heat exchanger 100 in the third direction D3; and in the third direction D3, a gap 5 is provided between the first groove edge 211 of the heat exchange tube groove 21 and the first tube edge 11 of the heat exchange tube 1 of the second heat exchange tube array among the plurality of heat exchange tube arrays inserted therein. According to an example of the present invention, in the third direction D3, the first groove edge 211 of the heat exchange tube groove 21 and the first tube edge 11 of the heat exchange tube 1 of the first heat exchange tube array among the plurality of heat exchange tube arrays inserted therein are substantially aligned with each other. For example, the first heat exchange tube array includes a plurality of heat exchange tubes 1A, the second heat exchange tube array includes a plurality of heat exchange tubes 1B, the third heat exchange tube array includes a plurality of heat exchange tubes 1C, the fourth heat exchange tube array includes a plurality of heat exchange tubes 1D, and so on.

[0131] See also Figure 31 to Figure 34 , Figures 41 to 50 In an embodiment of the present invention, a plurality of heat exchange tube arrays are sequentially arranged from the second side S2 to the first side S1 of the heat exchanger 100 in the third direction D3; and in the third direction D3, a gap 5 is provided between the second groove edge 212 of the heat exchange tube groove 21 and the second tube edge 12 of the heat exchange tube 1 of the second heat exchange tube array among the plurality of heat exchange tube arrays inserted therein. According to an example of the present invention, in the third direction D3, the second groove edge 212 of the heat exchange tube groove 21 and the second tube edge 12 of the heat exchange tube 1 of the first heat exchange tube array among the plurality of heat exchange tube arrays inserted therein are substantially aligned with each other. For example, the first heat exchange tube array includes a plurality of heat exchange tubes 1D, the second heat exchange tube array includes a plurality of heat exchange tubes 1C, the third heat exchange tube array includes a plurality of heat exchange tubes 1B, the fourth heat exchange tube array includes a plurality of heat exchange tubes 1A, and so on.

[0132] See also Figure 31 to Figure 34 , Figures 41 to 50 In an embodiment of the present invention, a plurality of gap columns are sequentially arranged from the second side S2 to the first side S1 of the heat exchanger 100 in the third direction D3; the gaps 5 of the odd-numbered gap columns in the plurality of gap columns are formed in some of the plurality of heat exchange tube grooves 21, and the gaps 5 of the even-numbered gap columns in the plurality of gap columns are formed in other of the plurality of heat exchange tube grooves 21; and the some of the heat exchange tube grooves 21 and the other of the heat exchange tube grooves 21 are alternately arranged in the first direction D1.

[0133] See also Figure 45 to Figure 46 , Figures 49 to 50In an embodiment of the present invention, a plurality of heat exchange tube rows are sequentially arranged from the first side S1 to the second side S2 of the heat exchanger 100 in the third direction D3; and the first groove edges 211 of some heat exchange tube grooves 21 of the heat exchange tubes 1 of the second heat exchange tube row inserted into the plurality of heat exchange tube rows are closer to the second side S2 of the heat exchanger 100 than the first groove edges 211 of other heat exchange tube grooves 21 of the heat exchange tubes 1 of the first heat exchange tube row inserted into the plurality of heat exchange tube rows. For example, the first heat exchange tube row includes a plurality of heat exchange tubes 1A, the second heat exchange tube row includes a plurality of heat exchange tubes 1B, the third heat exchange tube row includes a plurality of heat exchange tubes 1C, the fourth heat exchange tube row includes a plurality of heat exchange tubes 1D, and so on. According to an embodiment of the present invention, a larger plane is provided locally for the defrost water to flow, and the surface tension of this continuous plane promotes the defrost water to flow faster, thereby improving the performance of the heat exchanger under frosting conditions.

[0134] See also Figure 31 to Figure 36 , Figures 41 to 50 In an embodiment of the present invention, the heat exchange tubes 1 of the odd-numbered heat exchange tube rows in the plurality of heat exchange tube rows are arranged in some of the heat exchange tube slots 21 in the plurality of heat exchange tube slots 21, and the heat exchange tubes 1 of the even-numbered heat exchange tube rows in the plurality of heat exchange tube rows are arranged in other of the plurality of heat exchange tube slots 21; and the some of the heat exchange tube slots 21 and the other of the heat exchange tube slots 21 are alternately arranged in the first direction D1. For example, the first heat exchange tube row includes a plurality of heat exchange tubes 1A, the second heat exchange tube row includes a plurality of heat exchange tubes 1B, the third heat exchange tube row includes a plurality of heat exchange tubes 1C, the fourth heat exchange tube row includes a plurality of heat exchange tubes 1D, and so on. Or for example, the first heat exchange tube row includes a plurality of heat exchange tubes 1D, the second heat exchange tube row includes a plurality of heat exchange tubes 1C, the third heat exchange tube row includes a plurality of heat exchange tubes 1B, the fourth heat exchange tube row includes a plurality of heat exchange tubes 1A, and so on.

[0135] See also Figure 31 to Figure 34 , Figures 41 to 50 In an embodiment of the present invention, in the third direction D3, the first tube edges 11 of the heat exchange tubes 1 of at least one heat exchange tube row among the multiple heat exchange tube rows are roughly aligned with each other and / or the second tube edges 12 of the heat exchange tubes 1 of the at least one heat exchange tube row among the multiple heat exchange tube rows are roughly aligned with each other.

[0136] See also Figures 1 to 50In an embodiment of the present invention, a first tube edge 11 of the one heat exchange tube 1 or at least one heat exchange tube 1 among the multiple heat exchange tube rows and a first tube edge 11 of the one heat exchange tube 1 or at least one heat exchange tube 1 among at least another heat exchange tube row among the multiple heat exchange tube rows are staggered in a third direction D3; and / or a second tube edge 12 of the one heat exchange tube 1 or at least one heat exchange tube 1 among the multiple heat exchange tube rows and a second tube edge 12 of the one heat exchange tube 1 or at least one heat exchange tube 1 among at least another heat exchange tube row among the multiple heat exchange tube rows are staggered in a third direction D3. For example, the first tube edges 11 of at least some of the heat exchange tubes 1 of at least some of the multiple heat exchange tube rows are staggered with the first tube edges 11 of at least some of the heat exchange tubes 1 of at least other of the multiple heat exchange tube rows in the third direction D3; and / or the second tube edges 12 of at least some of the heat exchange tubes 1 of at least some of the multiple heat exchange tube rows are staggered with the second tube edges 12 of at least some of the heat exchange tubes 1 of at least other of the multiple heat exchange tube rows in the third direction D3.

[0137] See also Figures 37 to 40 , Figure 45 to Figure 46 , Figures 49 to 50 In the embodiment of the present invention, the first groove edge 211 of at least one heat exchange tube groove 21 of the plurality of heat exchange tube grooves 21 of at least one fin 2 among the plurality of fins 2 is staggered with the first groove edge 211 of at least another heat exchange tube groove 21 of the plurality of heat exchange tube grooves 21 of the at least one fin 2 among the plurality of fins 2 in the third direction D3. The second groove edge 212 of at least one heat exchange tube groove 21 of the plurality of heat exchange tube grooves 21 of the at least one fin 2 among the plurality of fins 2 is substantially aligned with the second groove edge 212 of at least another heat exchange tube groove 21 of the plurality of heat exchange tube grooves 21 of the at least one fin 2 among the plurality of fins 2 in the third direction D3. For example, when the heat exchange tube grooves 21 of the plurality of fins 2 are not open toward the second side S2 of the heat exchanger 100, that is, when the heat exchange tube grooves 21 are closed, the second groove edge 212 of the at least one heat exchange tube groove 21 of the plurality of heat exchange tube grooves 21 of the at least one fin 2 of the plurality of fins 2 and the second groove edge 212 of the at least another heat exchange tube groove 21 of the plurality of heat exchange tube grooves 21 of the at least one fin 2 of the plurality of fins 2 may also be staggered in the third direction D3. Figure 31 to Figure 36 , Figure 41 to Figure 44 , Figures 47 to 50In the embodiment of the present invention, the first groove edges 211 of the heat exchange tube grooves 21 of the plurality of fins 2 are substantially aligned with each other in the third direction D3, and the second groove edges 212 of the heat exchange tube grooves 21 of the plurality of fins 2 are substantially aligned with each other in the third direction D3. The heat exchange tube grooves 21 of the plurality of fins 2 may have substantially the same size in the third direction D3.

[0138] See also Figures 1 to 28 In an embodiment of the present invention, the heat exchange tubes 1 of the plurality of heat exchange tube rows 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. Figures 1 to 4 , Figures 13 to 20 In the illustrated embodiment, the heat exchanger 100 further includes: a first header 31 connected to and in fluid communication with the first ends 18 of the heat exchange tubes 1 of the plurality of heat exchange tube rows; and a second header 32 connected to and in fluid communication with the second ends 19 of the heat exchange tubes 1 of the plurality of heat exchange tube rows. The heat exchange tubes 1 of the plurality of heat exchange tube rows can be arranged into one, two, three, four or more heat exchange tube columns. Figures 5 to 8 In the illustrated embodiment, the heat exchanger 100 further includes: a first header 31 interconnected and fluidically connected to 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 and fluidically connected to the second ends 19 of the heat exchange tubes 1 of at least one of the plurality of heat exchange tube columns, and the other of the two second headers 32 is connected and fluidically connected to the second ends 19 of the heat exchange tubes 1 of at least another of the plurality of heat exchange tube columns. Figures 21 to 28 In the illustrated embodiment, 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 21 to Figure 24 The two first headers 31 can be connected to the refrigerant inlet pipe or the refrigerant outlet pipe, and the two second headers 32 can be connected to the refrigerant outlet pipe or the refrigerant inlet pipe. Figure 25 to Figure 28 The two first headers 31 can be connected to each other through the connecting pipe 7, and the two second headers 32 can be connected to the refrigerant inlet pipe and the refrigerant outlet pipe, respectively. Figures 9 to 12In the illustrated embodiment, the 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 columns is interconnected and fluidically connected with the first end 18 of the heat exchange tube 1 of another of the plurality of heat exchange tube columns; and two second headers 32, one of the two second headers 32 is connected and fluidically connected with the second end 19 of the heat exchange tube 1 of the one heat exchange tube column, and the other of the two second headers 32 is connected and fluidically connected with the second end 19 of the heat exchange tube 1 of the other heat exchange tube column. 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 column is respectively interconnected and fluidically connected with the first end 18 of the heat exchange tube 1 of the other heat exchange tube column. 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. The two second manifolds 32 can be connected to the refrigerant inlet pipe and the refrigerant outlet pipe, respectively.

[0139] See also Figures 1 to 50 In an embodiment of the present invention, when viewed in the first direction D1, the fin bodies 20 of the plurality of fins 2 are inclined relative to the third direction D3. The fin bodies 20 of the fins 2 may be parallel to the first direction D1. For example, when viewed in the first direction D1, the angle between the fin bodies 20 of the plurality of fins 2 and the third direction D3 is less than or equal to 45 degrees. Each of the plurality of fins 2 further includes a fin section 29 extending from the edge of the fin body 20 on the first side S1 of the heat exchanger 100 along the third direction D3. The fin section 29 may be parallel to the first direction D1. When viewed in the first direction D1, the fin bodies 20 of the plurality of fins 2 may also be parallel to the third direction D3. In an embodiment of the present invention, the fin bodies 20 of the plurality of fins 2 are inclined relative to the third direction D3, whereby the inclined fin bodies 20 may further promote the rapid discharge of defrost water, thereby improving the performance of the heat exchanger under frosting conditions.

[0140] See also Figures 1 to 32 , Figures 21 to 50In an embodiment of the present invention, at least two heat exchange tube grooves 21 of at least one fin 2 of the plurality of fins 2 have substantially the same size in the third direction D3, and the heat exchange tubes 1 of the heat exchange tube rows inserted in the at least two heat exchange tube grooves 21 have substantially the same size in the third direction D3. For example, the heat exchange tube grooves 21 of the plurality of fins 2 have substantially the same size in the third direction D3, and the heat exchange tubes of the plurality of heat exchange tube rows have substantially the same size in the third direction D3. According to an embodiment of the present invention, the heat exchange tube grooves 21 of the plurality of fins 2 are open toward the second side S2 of the heat exchanger 100, thereby facilitating assembly. In addition, the gap forms a drainage channel, through which the defrosting water can flow away quickly, thereby improving the performance under frosting conditions. Furthermore, the fin bodies 20 of the plurality of fins 2 are inclined relative to the third direction D3, thereby the inclined fin bodies 20 can further promote the rapid discharge of the defrosting water, thereby improving the performance of the heat exchanger under frosting conditions.

[0141] See also Figure 33 to Figure 36 In an embodiment of the present invention, at least two heat exchange tube grooves 21 of at least one fin 2 of the plurality of fins 2 have substantially the same size in the third direction D3, and the heat exchange tubes 1 of the heat exchange tube rows inserted in the at least two heat exchange tube grooves 21 have different sizes in the third direction D3. For example, the heat exchange tube grooves 21 of the plurality of fins 2 have substantially the same size in the third direction D3, and the heat exchange tubes 1 of the plurality of heat exchange tube rows have different sizes in the third direction D3. In an embodiment of the present invention, the gap forms a drainage channel, through which the defrost water can flow away quickly, thereby improving the performance under frosting conditions. In addition, gaps of different sizes are formed by using heat exchange tubes of different widths, thereby forming drainage channels of different sizes, thereby more flexibly and effectively managing the discharge path of the defrost water, thereby improving the performance of the heat exchanger under frosting conditions. In addition, the fin bodies 20 of the plurality of fins 2 are inclined relative to the third direction D3, thereby the inclined fin bodies 20 can further promote the rapid discharge of the defrost water, thereby improving the performance of the heat exchanger under frosting conditions.

[0142] See also Figure 17 to Figure 18In an embodiment of the present invention, at least two heat exchange tube grooves 21 of at least one fin 2 of the plurality of fins 2 have different sizes in the third direction D3, and the heat exchange tubes 1 of the heat exchange tube rows inserted in the at least two heat exchange tube grooves 21 have approximately the same size in the third direction D3. For example, the heat exchange tube grooves 21 of the plurality of fins 2 have different sizes in the third direction D3, and the heat exchange tubes 1 of the plurality of heat exchange tube rows have approximately the same size in the third direction D3. The first groove edges 211 of the heat exchange tube grooves are staggered in the third direction D3, providing a larger plane for the defrost water to flow locally. The surface tension of this continuous plane promotes the defrost water to flow faster, thereby improving the performance of the heat exchanger under frosting conditions. By using heat exchange tube grooves of different lengths, gaps of different sizes are formed, thereby forming drainage channels of different sizes, thereby more flexibly and effectively managing the discharge path of the defrost water, thereby improving the performance of the heat exchanger under frosting conditions. In addition, the fin bodies 20 of the plurality of fins 2 are inclined relative to the third direction D3, so that the inclined fin bodies 20 can further promote the rapid discharge of defrost water, thereby improving the performance of the heat exchanger under frosting conditions.

[0143] See also Figure 39 to Figure 40 In an embodiment of the present invention, at least two heat exchange tube grooves 21 of at least one fin 2 of the plurality of fins 2 have different sizes in the third direction D3, and the heat exchange tubes 1 of the heat exchange tube rows inserted in the at least two heat exchange tube grooves 21 have different sizes in the third direction D3. For example, the heat exchange tube grooves 21 of the plurality of fins 2 have different sizes in the third direction D3, and the heat exchange tubes 1 of the plurality of heat exchange tube rows have different sizes in the third direction D3. The first groove edges 211 of the heat exchange tube grooves are staggered in the third direction D3, and the first tube edges 11 of the heat exchange tubes 1 are staggered in the third direction D3, which locally provide a larger plane for the defrost water to flow. The surface tension of this continuous plane promotes the defrost water to flow faster, thereby improving the performance of the heat exchanger under frosting conditions. By using heat exchange tube grooves of different lengths and heat exchange tubes of different widths, gaps of different sizes are formed, thereby forming drainage channels of different sizes, thereby more flexibly and effectively managing the discharge path of the defrost water, thereby improving the performance of the heat exchanger under frosting conditions. In addition, the fin bodies 20 of the plurality of fins 2 are inclined relative to the third direction D3, so that the inclined fin bodies 20 can further promote the rapid discharge of defrost water, thereby improving the performance of the heat exchanger under frosting conditions.

[0144] In an 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. The width of the heat exchange tube 1 or the dimension in the third direction is greater than the thickness of the heat exchange tube 1 or the dimension in the first direction. The length of the heat exchange tube groove 21 or the dimension in the third direction is greater than the width of the heat exchange tube groove 21 or the dimension in the first direction. The thickness of the heat exchange tube 1 may be less than or equal to the width of the heat exchange tube groove 21.

[0145] See also Fig.51 , Fig.52 The bent heat exchanger 100′ according to the embodiment of the present invention is formed by bending the above-mentioned heat exchanger 100. For example, along a bending line in the middle of the heat exchanger 100 in the first direction D1 and parallel to the second direction, the heat exchanger 100 is bent toward the second side S2 of the heat exchanger 100, that is, the side where the heat exchange tube groove 21 is opened. The angle between the two parts of the heat exchanger 100 can be any suitable angle.

[0146] See also Figure 1 The air conditioning system according to the embodiment of the present invention includes: the above-mentioned heat exchanger 100 or the bent 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 or the bent heat exchanger 100'.

[0147] By using the heat exchanger, the bent heat exchanger and the air conditioning system having the heat exchanger or the bent heat exchanger according to the embodiments of the present invention, for example, the performance of the heat exchanger and the air conditioning system can be improved.

[0148] By using a heat exchanger or a bent heat exchanger according to an embodiment of the present invention, the flow path of the defrost water can be flexibly managed by staggering the tube edges of the heat exchange tubes in the third direction, or by staggering the groove edges of the heat exchange tube grooves of the fins in the third direction, or by staggering the tube edges of the heat exchange tubes in the third direction and by staggering the groove edges of the heat exchange tube grooves of the fins in the third direction. At the same time, combined with the inclined structure of the fins, the flow of the defrost water is accelerated, the discharge of the defrost water is further enhanced, and the performance of the heat exchanger and the air-conditioning system under frosting conditions is improved.

[0149] 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 heat exchange tube rows arranged along a first direction, each heat exchange tube row consisting of one heat exchange tube or a plurality of heat exchange tubes; as well as a plurality of fins arranged along a second direction perpendicular to the first direction, in: Each of the plurality of fins comprises a fin body and a plurality of heat exchange tube grooves formed in the fin body, the one heat exchange tube or the plurality of heat exchange tubes of each of the plurality of heat exchange tube rows being inserted into one of the plurality of heat exchange tube grooves; and The length of at least one heat exchange tube groove of the multiple heat exchange tube grooves of at least one fin among the multiple fins in the third direction perpendicular to the first direction and the second direction is greater than the size of the heat exchange tube of the heat exchange tube row inserted therein in the third direction so as to form a gap for water to pass through in the at least one heat exchange tube groove; 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.

2. The heat exchanger according to claim 1, wherein: The fins and heat exchange tubes of the heat exchanger satisfy the following relationship: Where: W f is the width of the fin in the third direction, L f is the length of the fin in the first direction, W si is the length of the ith heat exchange tube slot from one side of the heat exchanger to the other side in the first direction, T si is the width of the ith heat exchange tube slot from one side of the heat exchanger to the other side in the first direction, P f is the fin spacing, T f is the thickness of the fin body of the fin, W tij It is the dimension in the third direction of the jth heat exchange tube in the i-th heat exchange tube groove from one side to the other side of the heat exchanger in the first direction from the first side to the second side of the heat exchanger. When the heat exchange tube row consists of one heat exchange tube, j=1, and R is a predetermined value.

3. The heat exchanger according to claim 2, wherein: The predetermined value R is equal to 150.

4. The heat exchanger according to claim 1, wherein: At least one heat exchange tube row is composed of a plurality of heat exchange tubes, and a gap is provided between at least two adjacent heat exchange tubes in the plurality of heat exchange tubes.

5. The heat exchanger according to claim 1, wherein: The heat exchange tube comprises a first tube edge and a second tube edge, the first tube edge and the second tube edge of the heat exchange tube are located at the outermost side of the heat exchange tube in the third direction, and the heat exchanger has a first side and a second side opposite to each other in the third direction, and in the third direction, the first tube edge of the heat exchange tube is closer to the first side of the heat exchanger than the second tube edge of the heat exchange tube; The heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; and In the third direction, there is a gap between the first groove edge of at least one heat exchange tube groove of at least one fin among the multiple fins and the first tube edge of the one heat exchange tube of the heat exchange tube row inserted therein or the one heat exchange tube closest to the first groove edge among the multiple heat exchange tubes; and / or in the third direction, there is a gap between the second groove edge of at least one heat exchange tube groove of the multiple heat exchange tube grooves of at least one fin among the multiple fins and the second tube edge of the one heat exchange tube of the heat exchange tube row inserted therein or the one heat exchange tube closest to the second groove edge among the multiple heat exchange tubes.

6. The heat exchanger according to claim 1, wherein: At least in the middle of the gap in the third direction, the size of the gap in the first direction is equal to the width of the heat exchange tube groove; and / or the size of the gap in at least one of the multiple heat exchange tube grooves in the third direction is greater than or equal to the size of one heat exchange tube in the heat exchange tube row in the at least one heat exchange tube groove or one of the multiple heat exchange tubes in the third direction.

7. The heat exchanger according to claim 1, wherein: The heat exchange tube comprises a first tube edge and a second tube edge, the first tube edge and the second tube edge of the heat exchange tube are located at the outermost side of the heat exchange tube in the third direction, and the heat exchanger has a first side and a second side opposite to each other in the third direction, and in the third direction, the first tube edge of the heat exchange tube is closer to the first side of the heat exchanger than the second tube edge of the heat exchange tube; The heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; The heat exchange tubes of the plurality of heat exchange tube rows include a plurality of heat exchange tube columns arranged in the third direction, and each of the plurality of heat exchange tube columns includes a plurality of heat exchange tubes arranged in the first direction.

8. The heat exchanger according to claim 7, wherein: Orthographic projections of the heat exchange tubes of two adjacent heat exchange tube rows in a plane perpendicular to the first direction are spaced apart in the third direction.

9. The heat exchanger according to claim 7, wherein: The heat exchange tubes of two adjacent heat exchange tube rows are staggered with each other in the third direction.

10. The heat exchanger according to claim 7, wherein: At least some of the heat exchange tube grooves of at least some of the multiple fins and the heat exchange tubes of the heat exchange tube rows inserted therein form a plurality of gaps for drainage, the plurality of gaps including a plurality of gap columns arranged in a third direction, each of the plurality of gap columns including a plurality of gaps arranged in a first direction.

11. The heat exchanger according to claim 10, wherein: The gaps in at least two adjacent heat exchange tube grooves are staggered with each other in the third direction.

12. The heat exchanger according to claim 7, wherein: The plurality of heat exchange tube rows are arranged in sequence from the first side to the second side of the heat exchanger in the third direction; and In the third direction, a gap is provided between a first groove edge of the heat exchange tube groove and a first tube edge of a heat exchange tube of a second heat exchange tube row among the plurality of heat exchange tube rows inserted therein.

13. The heat exchanger according to claim 12, wherein: In the third direction, the first groove edge of the heat exchange tube groove and the first tube edge of the heat exchange tube of the first heat exchange tube row among the plurality of heat exchange tube rows inserted therein are substantially aligned with each other.

14. The heat exchanger according to claim 7, wherein: The plurality of heat exchange tube rows are arranged in sequence from the second side to the first side of the heat exchanger in the third direction; and In the third direction, a gap is provided between the second groove edge of the heat exchange tube groove and the second tube edge of the heat exchange tube of the second heat exchange tube row among the plurality of heat exchange tube rows inserted therein.

15. The heat exchanger according to claim 14, wherein: In the third direction, the second groove edge of the heat exchange tube groove and the second tube edge of the heat exchange tube of the first heat exchange tube row among the plurality of heat exchange tube rows inserted therein are substantially aligned with each other.

16. The heat exchanger according to claim 7, wherein: The plurality of heat exchange tube rows are arranged in sequence from the first side to the second side of the heat exchanger in the third direction; and The first groove edges of some heat exchange tube grooves of the heat exchange tubes inserted into the second heat exchange tube row among the multiple heat exchange tube rows are closer to the second side of the heat exchanger than the first groove edges of other heat exchange tube grooves of the heat exchange tubes inserted into the first heat exchange tube row among the multiple heat exchange tube rows.

17. The heat exchanger according to claim 10, wherein: The plurality of void columns are sequentially arranged in a third direction from the second side to the first side of the heat exchanger; The voids of the odd-numbered void columns among the plurality of void columns are formed in some of the plurality of heat exchange tube slots, and the voids of the even-numbered void columns among the plurality of void columns are formed in other of the plurality of heat exchange tube slots; and The some heat exchange tube grooves and the other heat exchange tube grooves are arranged alternately in the first direction.

18. The heat exchanger according to any one of claims 12 to 16, wherein: The heat exchange tubes of the odd-numbered heat exchange tube rows in the plurality of heat exchange tube rows are arranged in some of the plurality of heat exchange tube grooves, and the heat exchange tubes of the even-numbered heat exchange tube rows in the plurality of heat exchange tube rows are arranged in other of the plurality of heat exchange tube grooves; and The some heat exchange tube grooves and the other heat exchange tube grooves are arranged alternately in the first direction.

19. The heat exchanger according to any one of claims 7 to 17, wherein: In the third direction, first tube edges of the heat exchange tubes of at least one of the multiple heat exchange tube rows are roughly aligned with each other and / or second tube edges of the heat exchange tubes of at least one of the multiple heat exchange tube rows are roughly aligned with each other.

20. The heat exchanger according to any one of claims 7 to 17, wherein: The heat exchange tubes of at least one heat exchange tube row among the plurality of heat exchange tube rows have substantially the same size in the third direction.

21. The heat exchanger according to claim 1, wherein: The heat exchange tube comprises a first tube edge and a second tube edge, the first tube edge and the second tube edge of the heat exchange tube are located at the outermost side of the heat exchange tube in the third direction, and the heat exchanger has a first side and a second side opposite to each other in the third direction, and in the third direction, the first tube edge of the heat exchange tube is closer to the first side of the heat exchanger than the second tube edge of the heat exchange tube; and The first tube edge of the one heat exchange tube of at least one of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes is staggered with the first tube edge of the one heat exchange tube of at least another of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes in a third direction; and / or the second tube edge of the one heat exchange tube of at least one of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes is staggered with the second tube edge of the one heat exchange tube of at least another of the multiple heat exchange tube rows or at least one of the multiple heat exchange tubes in a third direction.

22. The heat exchanger according to claim 1, wherein: The heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; and A first groove edge of at least one of the plurality of heat exchange grooves of at least one fin among the plurality of fins and a first groove edge of at least another of the plurality of heat exchange grooves of the at least one fin among the plurality of fins are staggered in the third direction.

23. The heat exchanger according to claim 22, wherein: The second groove edge of at least one of the multiple heat exchange tube grooves of at least one of the multiple fins and the second groove edge of at least another of the multiple heat exchange tube grooves of at least one of the multiple fins are staggered in the third direction.

24. The heat exchanger according to claim 22, wherein: The second groove edge of at least one of the multiple heat exchange tube grooves of at least one of the multiple fins and the second groove edge of at least another of the multiple heat exchange tube grooves of at least one of the multiple fins are roughly aligned with each other in the third direction.

25. The heat exchanger according to claim 7, wherein: The first groove edges of the heat exchange tube grooves of the plurality of fins are substantially aligned with each other in the third direction, and the second groove edges of the heat exchange tube grooves of the plurality of fins are substantially aligned with each other in the third direction.

26. The heat exchanger according to claim 7, wherein: The heat exchange tube grooves of the plurality of fins have substantially the same size in the third direction.

27. The heat exchanger according to claim 1 or 7, wherein: The heat exchange tubes of the plurality of heat exchange tube rows 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 and in fluid communication with first ends of the heat exchange tubes of the plurality of heat exchange tube rows; and a second header connected to and in fluid communication with second ends of the heat exchange tubes of the plurality of heat exchange tube rows.

28. The heat exchanger according to claim 7, wherein: The heat exchange tubes of the plurality of heat exchange tube rows 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.

29. The heat exchanger according to claim 7, wherein: The heat exchange tubes of the plurality of heat exchange tube rows 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.

30. The heat exchanger of claim 29, 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.

31. The heat exchanger of claim 30, 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.

32. The heat exchanger according to claim 7, wherein: The heat exchange tubes of the plurality of heat exchange tube rows 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.

33. The heat exchanger according to claim 7, wherein: In the third direction, the heat exchange tubes of each heat exchange tube row in the plurality of heat exchange tube rows are spaced apart from the heat exchange tubes of an adjacent heat exchange tube row in the plurality of heat exchange tube rows.

34. The heat exchanger of claim 1, wherein: When viewed in the first direction, the fin bodies of the plurality of fins are inclined relative to the third direction.

35. The heat exchanger of claim 34, wherein: When viewed in the first direction, an angle between the fin bodies of the plurality of fins and the third direction is less than or equal to 45 degrees.

36. The heat exchanger of claim 34, wherein: The heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; and Each of the plurality of fins further includes a fin segment extending in a third direction from an edge of the fin body at the first side of the heat exchanger.

37. The heat exchanger of claim 1, wherein: At least two of the plurality of heat exchange tube grooves of at least one fin among the plurality of fins have substantially the same size in the third direction, and heat exchange tubes of the heat exchange tube rows inserted in the at least two heat exchange tube grooves have substantially the same size in the third direction.

38. The heat exchanger of claim 1, wherein: At least two of the plurality of heat exchange tube grooves of at least one fin among the plurality of fins have substantially the same size in the third direction, and heat exchange tubes of heat exchange tube rows inserted in the at least two heat exchange tube grooves have different sizes in the third direction.

39. The heat exchanger of claim 1, wherein: At least two of the plurality of heat exchange tube grooves of at least one fin among the plurality of fins have different sizes in the third direction, and heat exchange tubes of heat exchange tube rows inserted in the at least two heat exchange tube grooves have substantially the same size in the third direction.

40. The heat exchanger of claim 1, wherein: At least two of the plurality of heat exchange tube grooves of at least one fin among the plurality of fins have different sizes in the third direction, and heat exchange tubes of heat exchange tube rows inserted in the at least two heat exchange tube grooves have different sizes in the third direction.

41. The heat exchanger of claim 1, wherein: The heat exchange tube groove of the fin has a first groove edge and a second groove edge, the first groove edge and the second groove edge of the heat exchange tube groove of the fin 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 than the second groove edge of the heat exchange tube groove of the fin; and The heat exchange tube grooves of the plurality of fins are open toward the second side of the heat exchanger.

42. The heat exchanger of claim 1, wherein: In use, at least a portion of the heat exchange tubes extends substantially vertically.

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

44. A bent heat exchanger, wherein: The bent heat exchanger is formed by bending the heat exchanger according to claim 1 .

45. An air conditioning system, comprising: A heat exchanger according to any one of claims 1 to 43 or a bent heat exchanger according to claim 44.

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