heat exchanger

Abstract

The present invention relates to a heat exchanger, and a heat exchanger for a heat exchanger according to the present invention. The heat exchanger includes a first heat exchange section (10), a first flow collecting tube (20) and a second flow collecting tube (30), and a second heat exchange section (40). The first heat exchange section (10) includes a plurality of first flat tubes (11) arranged at intervals. The first flat tubes (11) include a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other. The first heat exchange tube segment (111) and the second heat exchange tube segment (112) are connected to each other. are arranged at a preset angle, a first heat exchange pipe segment (111) of the plurality of first flat tubes (11) are all connected to a first flow collector pipe (20), a second heat exchange pipe segment (112) of the plurality of first flat tubes (11) are connected to a second flow collector pipe (30), a second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air duct by surrounding it. The above heat exchanger can solve the technical problem that the A-type heat exchanger in the prior art is inferior in heat exchange performance.

Description

[Technical Field]

[0001] This application claims priority to a patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202111017351.X and titled "Heat Exchanger", and also claims priority to a patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202122087044.0 and titled "Heat Exchanger", and also claims priority to a patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202111017346.9 and titled "Heat Exchanger", and also claims priority to a patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202111017346.9 and titled "Heat Exchanger", and also claims priority to a patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202111017351.X ... The present application claims priority to the patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202122092336.3 and titled "Heat Exchanger", the patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202122089025.1 and titled "Heat Exchanger", and the patent application filed with the State Intellectual Property Office of the People's Republic of China on August 31, 2021, bearing application number 202122084091.X and titled "Heat Exchange Assembly".

[0002] TECHNICAL FIELD This application relates to the field of heat exchangers, and more particularly to heat exchangers. [Background technology]

[0003] Currently, in order to mount and protect conventional folded heat exchangers in the prior art, sheet metal members are typically used to shield the sides of A-type heat exchangers (i.e., heat exchangers with folded flat tubes).

[0004] However, adopting the above structural settings not only increases the occupied space, resulting in wasted space, but also makes the structure insufficiently compact, limiting the heat exchange area and making it impossible to effectively improve heat exchange performance. Summary of the Invention

[0005] The main object of the present application is to provide a heat exchanger that solves the technical problem that the A-type heat exchangers of the prior art have poor heat exchange performance.

[0006] To achieve the above object, the present application provides a heat exchanger including a first heat exchange section, first and second collector tubes, and a second heat exchange section, wherein the first heat exchange section includes a plurality of first flat tubes spaced apart, the first flat tubes including a first heat exchange tube segment and a second heat exchange tube segment connected to each other, the first heat exchange tube segment and the second heat exchange tube segment being arranged at a preset angle, or the first heat exchange section includes a first heat exchange assembly and a second heat exchange assembly connected to each other, the first heat exchange assembly including a plurality of first heat exchange flat tubes spaced apart along a first preset direction, the second heat exchange The assembly provides a heat exchanger, which includes a plurality of second heat exchange flat tubes spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle, wherein first heat exchange tube segments of the plurality of first flat tubes are all connected to a first collecting tube and second heat exchange tube segments of the plurality of first flat tubes are all connected to a second collecting tube, or wherein the plurality of first heat exchange flat tubes are all connected to the first collecting tube and the plurality of second heat exchange flat tubes are all connected to the second collecting tube, a second heat exchange section is provided at an end of the first heat exchange section, and the first heat exchange section and the second heat exchange section surround and form an air duct.

[0007] Additionally, there is an attachment area between the first heat exchange tube segment and the second heat exchange tube segment, and the second heat exchange section is located within the attachment area.

[0008] Furthermore, the mounting area is a triangular area, the second heat exchange section has a triangular or trapezoidal structure that fits the mounting area, and at least a portion of the second heat exchange section is provided in close contact with the first heat exchange tube segment and the second heat exchange tube segment.

[0009] Furthermore, the included angle between the first heat exchange tube segment and the second heat exchange tube segment forms the apex angle of the triangular area, and the apex angle of the triangular area is the same as the apex angle of the triangular structure.

[0010] Furthermore, the second heat exchange section includes a second flat tube, which has a plurality of bent pipe segments connected in series, and the height of the plurality of bent pipe segments connected in series is first gradually increased and then gradually decreased so that the edges of the plurality of bent pipe segments connected in series surround and form a triangular structure.

[0011] Further, the second heat exchange section includes a second flat tube and a second fin, the second flat tube having a plurality of bent pipe segments connected in sequence, the heights of the plurality of bent pipe segments connected in sequence being initially arranged to gradually increase or decrease, there are a plurality of second fins, and a second fin is attached within the bent gap of each of the plurality of bent pipe segments connected in sequence and between two adjacent bent pipe segments, where the two adjacent bent pipe segments include a first bent pipe segment and a second bent pipe segment, the height of the first bent pipe segment, the height of the second fin located between the first bent pipe segment and the second bent pipe segment, and the height of the second bent pipe segment are sequentially gradually increased or gradually decreased so that the edges of the second flat tube and the edges of the plurality of second fins surround and form a triangular structure.

[0012] Furthermore, the inlet end of the second heat exchange section communicates with the first flow collecting pipe, and the outlet end of the second heat exchange section communicates with the second flow collecting pipe.

[0013] Further, the second heat exchange section includes a second flat tube, the first collection tube is provided with a first insertion groove, the first insertion groove extends along the axial direction of the first collection tube, and one end of the second flat tube is inserted into the first insertion groove, and / or the second collection tube is provided with a second insertion groove, the second insertion groove extends along the axial direction of the second collection tube, and the other end of the second flat tube is inserted into the second insertion groove.

[0014] Furthermore, the second heat exchange section includes a third collection pipe, a fourth collection pipe, and a second flat pipe, the second flat pipe being connected to the third collection pipe and the fourth collection pipe, respectively, and the third collection pipe and the fourth collection pipe being connected to the first collection pipe and the second collection pipe, respectively, via connecting pipes.

[0015] Furthermore, there are two second heat exchange sections, and the two second heat exchange sections are respectively provided at both ends of the first heat exchange section, the inlet ends of the two second heat exchange sections are connected via a first connecting pipe, and the outlet ends of the two second heat exchange sections are connected via a second connecting pipe, and the heat exchanger further includes a third connecting pipe and a fourth connecting pipe provided at a distance from each other, the third connecting pipe and the fourth connecting pipe are both provided in one of the second heat exchange sections, the third connecting pipe is located between the second heat exchange section and the first collecting pipe, and the fourth connecting pipe is located between the second heat exchange section and the second collecting pipe, or the two second heat exchange sections are provided independently of each other from the first heat exchange section so as to exchange heat independently of the first heat exchange section.

[0016] Furthermore, there are two second heat exchange sections, and the two second heat exchange sections are provided at both ends of the first heat exchange section, the inlet ends of the two second heat exchange sections are both connected to the side of the first flow collecting pipe, and the outlet ends of the two second heat exchange sections are both connected to the side of the second flow collecting pipe, and the connection point between the inlet end of one second heat exchange section and the first flow collecting pipe and the connection point between the inlet end of the other second heat exchange section and the first flow collecting pipe are located at both ends of the first heat exchange section, and the connection point between the outlet end of one second heat exchange section and the second flow collecting pipe and the connection point between the outlet end of the one second heat exchange section and the second flow collecting pipe and the connection point between the outlet end of the other second heat exchange section and the second flow collecting pipe are located at both ends of the first heat exchange section, The connection points between the outlet end of the heat exchanger and the second collecting pipe are located at both ends of the first heat exchanger, respectively; alternatively, the heat exchanger further includes two first connecting pipes and two second connecting pipes, one end of each of the two first connecting pipes being connected to both ends of the first collecting pipe, the other ends of each of the two first connecting pipes being connected to the inlet ends of the two second heat exchangers, one end of each of the two second connecting pipes being connected to both ends of the second collecting pipe, and the other ends of each of the two second connecting pipes being connected to the outlet ends of the two second heat exchangers.

[0017] Furthermore, the second heat exchange section is provided so as to be inclined toward the inside of the attachment area.

[0018] Furthermore, the second heat exchange section has opposite top and bottom ends, the top end of the second heat exchange section being located at the connection point between the first heat exchange tube segment and the second heat exchange tube segment, and the bottom end of the second heat exchange section being located at one end of the first heat exchange tube segment away from the second heat exchange tube segment, wherein the top end of the second heat exchange section is inclined toward the inside of the mounting area relative to the bottom end of the second heat exchange section.

[0019] Furthermore, the heat exchanger further includes an intermediate collecting tube, which has an inlet pipe segment and an outlet pipe segment independent of each other, the inlet end of the second heat exchange section is connected to the inlet pipe segment, the outlet end of the second heat exchange section is connected to the outlet pipe segment, the inlet end of the inlet pipe segment is connected to the first collecting tube, and the outlet end of the outlet pipe segment is connected to the second collecting tube.

[0020] Furthermore, the second heat exchange section includes at least two independently arranged heat exchange structures, and there are at least two intermediate flow collector tubes, and the at least two heat exchange structures are arranged at intervals along the extension direction from one end of the first heat exchange section to the other end of the first heat exchange section, and the at least two heat exchange structures are arranged in one-to-one correspondence with the at least two intermediate flow collector tubes, and each heat exchange structure is connected to a corresponding intermediate flow collector tube.

[0021] Furthermore, the second heat exchange section includes two independently arranged heat exchange structures, the two heat exchange structures being arranged at both ends of the first heat exchange section, respectively, and there are two intermediate flow collector tubes, the two heat exchange structures being arranged in one-to-one correspondence with the two intermediate flow collector tubes, and each heat exchange structure being connected to the corresponding intermediate flow collector tube.

[0022] Furthermore, there is an attachment area between the first heat exchange tube segment and the second heat exchange tube segment, the attachment area is a triangular area, the heat exchange structure is attached within the triangular area, the outer shape of the heat exchange structure is a triangular structure or a trapezoidal structure that fits the attachment area, and at least a portion of the heat exchange structure is provided in close contact with the first heat exchange tube segment or the second heat exchange tube segment.

[0023] The heat exchange structure further includes a plurality of third flat tubes spaced apart along the height direction, the inlet ends of the third flat tubes being connected to the inlet pipe segment, and the outlet ends of the third flat tubes being connected to the outlet pipe segment.

[0024] Furthermore, the third flat tube includes a first pipe segment, a second pipe segment, and a third pipe segment connected in sequence, the first pipe segment and the third pipe segment all extending vertically or along a direction forming a preset angle with respect to the vertical direction, the second pipe segment extending horizontally or along a direction forming a preset angle with respect to the horizontal direction, one end of the first pipe segment away from the second pipe segment forming an inlet end of the third flat tube, and one end of the third pipe segment away from the second pipe segment forming an outlet end of the third flat tube.

[0025] Furthermore, along the extension direction from the bottom end of the heat exchange structure to the top end of the heat exchange structure, the lengths of the plurality of second pipe segments gradually decrease, and the lengths of the plurality of first pipe segments and / or the plurality of third pipe segments gradually increase.

[0026] Furthermore, the third flat tube has an integrally molded structure, and the connection point between the first pipe segment and the second pipe segment has an arc-shaped bent transition structure, and / or the connection point between the second pipe segment and the third pipe segment has an arc-shaped bent transition structure.

[0027] Furthermore, the heat exchanger further includes a connecting pipe, and the connecting pipe and the intermediate collecting pipe are respectively provided at both ends of the first heat exchange section, and the second heat exchange section includes two heat exchange structures provided in communication with each other, and the two heat exchange structures are respectively provided at both ends of the first heat exchange section, one heat exchange structure connected to the connecting pipe and the other heat exchange structure connected to the intermediate collecting pipe, so that the fluid entering through the inlet pipe segment passes through the two heat exchange structures and then discharges from the outlet pipe segment.

[0028] Furthermore, the second heat exchange section further includes a fourth flat tube, which has a fourth tube segment, a fifth tube segment, and a sixth tube segment connected in sequence, and the fourth tube segment and the sixth tube segment all extend along the vertical direction or along a direction forming a preset angle with respect to the vertical direction. The fourth tube segment is located at one end of the first heat exchange section and is connected to the intermediate collection tube. The fifth tube segment is located between one end of the first heat exchange section and the other end of the first heat exchange section. The sixth tube segment is located at the other end of the first heat exchange section and is connected to the connecting tube. Here, there are multiple fourth flat tubes, and the multiple fourth flat tubes are spaced apart along the extension direction of the intermediate collection tube. The multiple fourth tube segments surround and form one heat exchange structure, and the multiple sixth tube segments surround and form the other heat exchange structure, and the one heat exchange structure and the other heat exchange structure are connected via the multiple fifth tube segments.

[0029] Furthermore, there is an attachment area between the first heat exchange tube segment and the second heat exchange tube segment, the attachment area being a triangular area, and at least a portion of the heat exchange structure is closely attached to the first heat exchange tube segment or the second heat exchange tube segment, and the lengths of the fourth tube segments of the plurality of fourth flat tubes along the extension direction of the intermediate collector tube first increase and then decrease so that the plurality of fourth tube segments surround and form a triangular or trapezoidal structure that fits the attachment area, and / or the lengths of the sixth tube segments of the plurality of fourth flat tubes along the extension direction of the intermediate collector tube first increase and then decrease so that the plurality of sixth tube segments surround and form a triangular or trapezoidal structure that fits the attachment area.

[0030] Furthermore, the fourth flat tube has an integrally molded structure, and the connection point between the fourth pipe segment and the fifth pipe segment has an arc-shaped bent transition structure, and / or the connection point between the fifth pipe segment and the sixth pipe segment has an arc-shaped bent transition structure.

[0031] Furthermore, the second heat exchange section includes a third heat exchange flat tube, which has a plurality of bent pipe segments connected in series, and the heights of the plurality of bent pipe segments connected in series are initially gradually increased or gradually decreased so that the edges of the plurality of bent pipe segments connected in series surround and form a triangular structure that fits the mounting area between the first heat exchange assembly and the second heat exchange assembly.

[0032] Furthermore, there are a plurality of third heat exchange flat tubes, and the third heat exchange flat tubes are arranged at intervals along the height direction.

[0033] Furthermore, the inlet ends of the plurality of third heat exchange flat tubes are connected together, and the outlet ends of the plurality of third heat exchange flat tubes are connected together.

[0034] Furthermore, the second heat exchange section includes a plurality of third heat exchange flat tubes, which are spaced apart along the extension direction from the first heat exchange assembly to the second heat exchange assembly, and each third heat exchange flat tube has a plurality of bent tube segments connected in sequence, and the heights of the bent tube segments of the plurality of third heat exchange flat tubes are initially gradually increased or gradually decreased so that the edges of the plurality of third heat exchange flat tubes surround and form a triangular structure that fits the mounting area between the first heat exchange assembly and the second heat exchange assembly.

[0035] Furthermore, the inlet ends of the plurality of third heat exchange flat tubes are connected together, and the outlet ends of the plurality of third heat exchange flat tubes are connected together.

[0036] Furthermore, the second heat exchange section further includes an inlet connecting pipe and / or an outlet connecting pipe, wherein the inlet connecting pipe extends along the extension direction from the first heat exchange assembly to the second heat exchange assembly, and the inlet ends of the plurality of third heat exchange flat tubes are all connected to the inlet connecting pipe, and the outlet connecting pipe extends along the extension direction from the first heat exchange assembly to the second heat exchange assembly, and the outlet ends of the plurality of third heat exchange flat tubes are all connected to the outlet connecting pipe.

[0037] Furthermore, the second heat exchange section is a bent flat tube structure, and the bent flat tube structure has a heat exchange inlet section, a heat exchange outlet section, and a bent heat exchange flow path structure that communicates with both the heat exchange inlet section and the heat exchange outlet section, where the edge of the bent flat tube structure surrounds and forms a triangular structure or a trapezoidal structure.

[0038] Furthermore, the bent flat tube structure includes a fifth flat tube, which includes a plurality of fifth heat exchange tube segments spaced apart along the horizontal direction and arranged to communicate with each other, and all of the fifth heat exchange tube segments extend along the vertical direction.

[0039] Furthermore, the height of the plurality of fifth heat exchange tube segments first increases and then decreases, one end of the fifth flat tubes forms a heat exchange inlet portion, and the other end of the fifth flat tubes forms a heat exchange outlet portion.

[0040] Furthermore, there are a plurality of fifth flat tubes, the plurality of fifth flat tubes are spaced apart along the horizontal direction, the heat exchange inlet portion includes a plurality of first heat exchange inlets of the fifth flat tubes, the heat exchange outlet portion includes a plurality of first heat exchange outlets of the fifth flat tubes, and the heights of the plurality of fifth heat exchange tube segments of the plurality of fifth flat tubes first increase and then decrease.

[0041] Furthermore, the multiple first heat exchange inlets are spaced apart, and the multiple first heat exchange outlets are spaced apart, and the heat exchanger further includes a first connecting pipe line and / or a second connecting pipe line, and the multiple first heat exchange inlets are all connected to the first connecting pipe line, and the first connecting pipe line extends along the direction in which the multiple first heat exchange inlets are spaced apart, and the multiple first heat exchange outlets are all connected to the second connecting pipe line, and the second connecting pipe line extends along the direction in which the multiple first heat exchange outlets are spaced apart.

[0042] Furthermore, the height of the plurality of fifth heat exchange tube segments of the fifth flat tube first increases and then decreases, the fifth flat tube is plural, and the plurality of fifth flat tubes are spaced apart along the vertical direction.

[0043] Furthermore, the heights of the plurality of fifth heat exchange tube segments of the fifth flat tube first increase and then decrease, the bent flat tube structure further includes a sixth flat tube, the sixth flat tube includes a plurality of sixth heat exchange tube segments spaced apart along the horizontal direction and connected to each other, the sixth heat exchange tube segments extend along the vertical direction, the heights of the plurality of sixth heat exchange tube segments are the same, and the plurality of fifth heat exchange tube segments are attached above the plurality of sixth heat exchange tube segments.

[0044] Furthermore, the folded flat tube structure includes a plurality of first inclined segments and a plurality of second inclined segments, and the plurality of first inclined segments are arranged in one-to-one correspondence with the plurality of second inclined segments, and each first inclined segment and the corresponding second inclined segment are arranged in correspondence so as to be connected to form a triangular structure.

[0045] Furthermore, the bent flat tube structure includes a seventh flat tube and an eighth flat tube, the seventh flat tube includes a plurality of third heat exchange tube segments spaced apart along the horizontal direction so as to communicate with each other, and the eighth flat tube includes a plurality of fourth heat exchange tube segments spaced apart along the horizontal direction so as to communicate with each other, each third heat exchange tube segment including a first inclined segment and each fourth heat exchange tube segment including a second inclined segment, the plurality of first inclined segments being arranged in one-to-one correspondence with the plurality of second inclined segments, and each first inclined segment and the corresponding second inclined segment abutting to form a surrounding triangular structure.

[0046] Furthermore, the folded flat tube structure includes a ninth flat tube, which includes a plurality of fifth heat exchange tube segments spaced apart along the vertical direction and connected to each other, and each fifth heat exchange tube segment includes a third inclined segment and a fourth inclined segment connected to each other, and the third inclined segment and the fourth inclined segment surround and form a triangular structure.

[0047] By applying the technical aspects of the present application, a second heat exchange section is provided at the end of the first heat exchange section, and the second and first heat exchange sections surround the air duct. This not only serves as a windshield, but also enables effective heat exchange, thereby increasing the heat exchange area of ​​the entire heat exchanger, improving heat exchange performance, and achieving effective space utilization and a more compact space layout. Therefore, the heat exchanger provided by this embodiment can solve the technical problem of the poor heat exchange performance of conventional A-type heat exchangers. [Brief explanation of the drawings]

[0048] The drawings in the specification that form a part of this application are intended to provide a further understanding of the application, and the schematic examples and descriptions thereof are intended to aid in the interpretation of the application and are not intended to unduly limit the application.

[0049] [Figure 1] 1 shows a schematic diagram of the configuration of a first heat exchange section of a heat exchanger provided by Example 1 of the present application. [Figure 2] FIG. 2 shows a front view of a first heat exchange section of a heat exchanger provided by Example 1 of the present application. [Figure 3] 1 shows a schematic diagram of the configuration of a heat exchanger provided by Example 1 of the present application. [Figure 4] 1 shows a front view of a heat exchanger provided by Example 1 of the present application. [Figure 5] FIG. 2 shows a schematic diagram of the configuration of a second heat exchange section of a heat exchanger provided by Example 2 of the present application. [Figure 6] FIG. 2 shows a front view of the second heat exchange section of the heat exchanger provided by Example 2 of the present application. [Figure 7] FIG. 2 shows a left side view of the second heat exchange section of the heat exchanger provided by Example 2 of the present application. [Figure 8] FIG. 2 shows a top view of the second heat exchange section of the heat exchanger provided by Example 2 of the present application. [Figure 9]1 shows a schematic diagram of the configuration of a heat exchanger provided by Example 3 of the present application. [Figure 10] FIG. 1 shows a front view of a heat exchanger provided by Example 3 of the present application. [Figure 11] 1 shows a schematic diagram of the configuration of a heat exchanger provided by Example 5 of the present application. [Figure 12] FIG. 1 shows a front view of a heat exchanger provided by Example 5 of the present application. [Figure 13] FIG. 1 shows a left side view of a heat exchanger provided by Example 5 of the present application. [Figure 14] FIG. 1 shows a top view of a heat exchanger provided by Example 5 of the present application. [Figure 15] FIG. 1 shows a bottom view of a heat exchanger provided by Example 5 of the present application. [Figure 16] FIG. 1 shows a schematic diagram of the configuration of a heat exchanger provided by Example 6 of the present application. [Figure 17] FIG. 10 shows a schematic diagram of the heat exchanger provided by Example 6 of the present application from another angle. [Figure 18] FIG. 1 shows a top view of a heat exchanger provided by Example 6 of the present application. [Figure 19] FIG. 1 shows a bottom view of a heat exchanger provided by Example 6 of the present application. [Figure 20] FIG. 1 shows a schematic diagram of the configuration of a heat exchanger provided by Example 7 of the present application. [Figure 21] FIG. 1 shows a front view of a heat exchanger provided by Example 7 of the present application. [Figure 22] FIG. 1 shows a top view of a heat exchanger provided by Example 7 of the present application. [Figure 23] FIG. 1 shows a bottom view of a heat exchanger provided by Example 7 of the present application. [Figure 24] 1 shows a schematic diagram of the configuration of a heat exchanger provided by Example 8 of the present application. [Figure 25] FIG. 1 shows a front view of a heat exchanger provided by Example 8 of the present application. [Figure 26] FIG. 1 shows a top view of a heat exchanger provided by Example 8 of the present application. [Figure 27] FIG. 1 shows a schematic diagram of the heat exchanger provided by Example 9 of the present application. [Figure 28] FIG. 10 shows a schematic diagram of the heat exchanger provided by Example 9 of the present application from another angle. [Figure 29] FIG. 1 shows a front view of a heat exchanger provided by Example 9 of the present application. [Figure 30] FIG. 1 shows a left side view of a heat exchanger provided by Example 9 of the present application. [Figure 31] FIG. 1 shows a bottom view of a heat exchanger provided by Example 9 of the present application. [Figure 32] FIG. 1 shows a schematic diagram of the heat exchanger provided by Example 10 of the present application. [Figure 33] FIG. 10 shows a front view of a heat exchanger provided by Example 10 of the present application. [Figure 34] FIG. 10 shows a left side view of a heat exchanger provided by Example 10 of the present application. [Figure 35] FIG. 10 shows a schematic diagram of a heat exchanger provided in Example 10 of the present application, in which the heat exchange structure is inclined. [Figure 36] FIG. 10 shows a front view of a heat exchange structure provided by Example 10 of the present application. [Figure 37] 1 shows a schematic diagram of the heat exchange structure provided by Example 10 of the present application. [Figure 38] FIG. 1 shows a front view of a heat exchanger provided by Example 11 of the present application. [Figure 39] FIG. 1 shows a schematic diagram of the heat exchanger provided by Example 11 of the present application. [Figure 40] 1 shows a schematic diagram of the heat exchange structure provided by Example 11 of the present application. [Figure 41] FIG. 1 shows a schematic diagram of the heat exchanger provided by Example 12 of the present application. [Figure 42] A top view of FIG. 41 is shown. [Figure 43] FIG. 10 shows a schematic diagram of the heat exchanger provided by Example 12 of the present application from another angle. [Figure 44]A left side view of Figure 43 is shown. [Figure 45] FIG. 10 shows a schematic diagram of the configuration of the second heat exchange section of the heat exchanger provided by Example 12 of the present application. [Figure 46] A front view of Figure 45 is shown. [Figure 47] A left side view of Figure 45 is shown. [Figure 48] A top view of Figure 45 is shown. [Figure 49] FIG. 1 shows a schematic diagram of the heat exchanger provided by Example 13 of the present application. [Figure 50] FIG. 10 shows a schematic diagram of the heat exchanger provided by Example 13 of the present application from another angle. [Figure 51] A left side view of Figure 50 is shown. [Figure 52] FIG. 10 shows a schematic diagram of the configuration of the second heat exchange section of the heat exchanger provided by Example 13 of the present application. [Figure 53] A front view of Figure 52 is shown. [Figure 54] A left side view of Figure 52 is shown. [Figure 55] A top view of Figure 52 is shown. [Figure 56] FIG. 1 shows a schematic diagram of the heat exchange assembly provided by Example 14 of the present application. [Figure 57] FIG. 1 shows a front view of a heat exchange assembly provided by Example 14 of the present application. [Figure 58] FIG. 1 shows a front view of a heat exchange assembly provided by Example 15 of the present application. [Figure 59] FIG. 1 shows a top view of a heat exchange assembly provided by Example 15 of the present application. [Figure 60] FIG. 1 shows a left side view of a heat exchange assembly provided by Example 15 of the present application. [Figure 61] FIG. 1 shows a schematic diagram of the heat exchange assembly provided by Example 15 of the present application. [Figure 62] FIG. 1 shows a front view of a heat exchange assembly provided by Example 16 of the present application. [Figure 63]FIG. 1 shows a front view of a heat exchange assembly provided by Example 17 of the present application. [Figure 64] FIG. 1 shows a front view of a heat exchange assembly provided by Example 18 of the present application. [Figure 65] FIG. 1 shows a front view of a heat exchange assembly provided by Example 19 of the present application.

[0050] Here, the above drawings include the following reference numerals: 10 first heat exchange section, 11 first flat tube, 111 first heat exchange tube segment, 112 second heat exchange tube segment, 113 mounting area, 12 first fin, 13 first heat exchange assembly, 131 first heat exchange flat tube, 14 second heat exchange assembly, 141 second heat exchange flat tube, 20 first collector pipe, 30 second collector pipe, 40 second heat exchange section, 41 second flat tube, 411 first bent tube segment, 412 second bent tube segment, 42 second fin, 43 top end, 44 bottom end, 45 heat exchange structure, 46 third flat tube, 461 first tube segment, 462 second tube segment, 463 third tube segment, 47 fourth flat tube, 471 fourth tube segment, 472 fifth tube segment, 473 sixth tube segment, 48 third heat exchange flat tube, 491 inlet connecting tube, 492 outlet connecting tube, 4100 third collecting tube, 4110 fifth flat tube, 4111 fifth heat exchange tube segment, 4120 sixth flat tube, 4121 sixth heat exchange tube segment, 4130 seventh flat tube, 4131 first inclined segment, 4132 first vertical segment, 4140 eighth flat tube, 4141 Second inclined segment, 4142 second vertical segment, 4150 ninth flat tube, 4151 third inclined segment, 4152 fourth inclined segment, 4153 third vertical segment, 4154 fourth vertical segment, 4160 tenth flat tube, 51 first connecting pipe, 52 second connecting pipe, 53 third connecting pipe, 54 fourth connecting pipe, 55 fifth connecting pipe, 56 sixth connecting pipe, 61 first connecting pipe, 62 second connecting pipe, 71 first collecting and connecting pipe, 72 second collecting and connecting pipe, 80 intermediate collection pipe, 81 inlet pipe segment, 82 outlet pipe segment, 83 spacer, 90 connecting pipes, 101 inlet connecting pipe, 102 outlet connecting pipe, 110 connecting joint tube, 120 first connecting pipeline, 130 second connecting pipeline, 140 third connecting pipeline, 150 fourth connecting pipeline, 160 fifth connecting pipeline, 170 sixth connecting pipeline. DETAILED DESCRIPTION OF THE INVENTION

[0051] It should be noted that, unless contradictory, the embodiments and features in the embodiments in the present application can be combined with each other. The present application will be described in detail below in conjunction with the embodiments with reference to the drawings.

[0052] As shown in FIGS. 1 to 4 , a first embodiment of the present invention provides a heat exchanger including a first heat exchange section 10, a first flow collecting tube 20, a second flow collecting tube 30, and a second heat exchange section 40. The first heat exchange section 10 includes a plurality of spaced apart first flat tubes 11, each including a first heat exchange tube segment 111 and a second heat exchange tube segment 112 connected to each other, with the first heat exchange tube segment 111 and the second heat exchange tube segment 112 arranged at a preset angle. The first heat exchange tube segments 111 of the plurality of first flat tubes 11 are all connected to the first flow collecting tube 20, and the second heat exchange tube segments 112 of the plurality of first flat tubes 11 are connected to the second flow collecting tube 30, forming an A-type heat exchanger structure. The second heat exchange section 40 is provided at the end of the first heat exchange section 10, and the first heat exchange section 10 and the second heat exchange section 40 surround an air duct. It should be noted that airway here refers to the main flow path through which air enters the heat exchanger.

[0053] In the heat exchanger provided by this embodiment, the first heat exchange section 10 and the second heat exchange section 40 surround the air passage, allowing the second heat exchange section 40 to effectively function as a windshield, and both the first heat exchange section 10 and the second heat exchange section 40 can exchange heat, thereby increasing the overall heat exchange area, improving heat exchange performance, and enabling more efficient use of space and a more compact space layout. Therefore, the heat exchanger provided by this embodiment can solve the technical problem of the poor heat exchange performance of the A-type heat exchanger in the prior art.

[0054] Specifically, in this embodiment, there is an attachment area 113 between the first heat exchange tube segment 111 and the second heat exchange tube segment 112, and the second heat exchange section 40 is located within the attachment area 113. The first heat exchange tube segment 111 and the second heat exchange tube segment 112 are arranged at a preset angle, which facilitates the discharge of condensed water during the operation of the heat exchanger.

[0055] In the heat exchanger provided by this embodiment, the second heat exchange section 40 is provided at the end of the first heat exchange section 10 and is located within the attachment area 113 between the first heat exchange tube segment 111 and the second heat exchange tube segment 112. This not only serves as a windshield, but also enables effective heat exchange, thereby increasing the heat exchange area of ​​the entire heat exchanger, improving heat exchange performance, and achieving more efficient space utilization and a more compact space layout. Therefore, the heat exchanger provided by this embodiment solves the technical problem of the poor heat exchange performance of the A-type heat exchanger in the prior art.

[0056] In this embodiment, the mounting area 113 is a triangular area, and the second heat exchanger 40 has a triangular or trapezoidal structure that fits the mounting area 113. At least a portion of the second heat exchanger 40 is closely attached to the first heat exchanger tube segment 111 and the second heat exchanger tube segment 112. This structural configuration facilitates improving wind protection, improving the installation stability of the second heat exchanger 40, optimizing the structural arrangement, and increasing the compactness of the structural layout. To make full use of the heat exchange space of the heat exchanger and effectively fulfill the role of wind protection, in this embodiment, the outer dimensions of the second heat exchanger 40 are maintained to completely match the angle between the first heat exchanger tube segment 111 and the second heat exchanger tube segment 112 of the first heat exchanger 10, thereby making full use of the space and fulfilling a certain role of wind protection.

[0057] Preferably, the angle between the first heat exchange tube segment 111 and the second heat exchange tube segment 112 in this embodiment forms the apex angle of the triangular area, and the apex angle of the triangular area is the same as the apex angle of the triangular structure. Using this structural setting can facilitate better filling of the second heat exchange section 40 into the mounting area 113, better fulfilling its insulating role and effectively fulfilling the role of a windshield.

[0058] In this embodiment, the second heat exchange section 40 includes a second flat tube 41, which has a plurality of bent pipe segments connected in series, the height of which first gradually increases and then gradually decreases so that the edges of the bent pipe segments surround and form a triangular structure. This structural configuration simplifies the structure, makes it easy to form the triangular structure, and facilitates production and manufacturing.

[0059] 5 to 8, Example 2 of the present application provides a heat exchanger that is distinguishable from the heat exchanger of Example 1 in the specific structure of the second heat exchange section 40. The second heat exchange section 40 in this example includes second flat tubes 41 and second fins 42, the second flat tubes 41 having a plurality of bent pipe segments connected in sequence, the heights of the bent pipe segments connected in sequence being initially gradually increasing or gradually decreasing, and a plurality of second fins 42, the second fins 42 being attached in the bent gaps between each of the bent pipe segments and between two adjacent bent pipe segments. Here, the two adjacent bent pipe segments include a first bent pipe segment 411 and a second bent pipe segment 412. The height of the first bent pipe segment 411, the height of the second fin 42 located between the first bent pipe segment 411 and the second bent pipe segment 412, and the height of the second bent pipe segment 412 gradually increase or decrease in order so that the edge of the second flat tube 41 and the edges of the multiple second fins 42 surround and form a triangular structure. Specifically, the first bent pipe segment 411 and the second bent pipe segment 412 are arbitrarily selected as two adjacent bent pipe segments. Using this structural configuration optimizes the structural layout of the second flat tube 41 and the second fins 42, improving the compactness of the structural arrangement and facilitating the formation of a triangular structure, thereby optimizing the overall space layout.

[0060] Preferably, the bent pipe segment in this embodiment is a U-shaped pipe structure, the open end of the U-shaped pipe structure is located at the bottom, and two adjacent U-shaped pipe structures are connected by an arc-shaped plate. In this embodiment, the second flat tube 41 is an integrally molded structure for ease of production and manufacturing.

[0061] Specifically, the second heat exchange section 40 in this embodiment may have a multi-flow path structure, i.e., the second heat exchange section 40 may have multiple inlets and multiple outlets, and the multiple inlets may be arranged in one-to-one correspondence with the multiple outlets.

[0062] 9 and 10 , Example 3 of the present application provides a heat exchanger based on Examples 1 and 2, with an improved connection relationship for the second heat exchange section 40. In this example, the inlet end of the second heat exchange section 40 is connected to the first flow collecting pipe 20, and the outlet end of the second heat exchange section 40 is connected to the second flow collecting pipe 30. By using this structural configuration, the first flow collecting pipe 20 can provide heat exchange medium to the first heat exchange section 10 and the second heat exchange section 40, and the second flow collecting pipe 30 can collect the heat exchange medium that flows out through the first heat exchange section 10 and the second heat exchange section 40. This eliminates the need for an additional flow collecting pipe structure and optimizes the structural layout and connection configuration method.

[0063] In this embodiment, the second heat exchange section 40 includes a second flat tube 41. Specifically, the first flow collector tube 20 may be provided with a first insertion groove, which extends along the axial direction of the first flow collector tube 20, and one end of the second flat tube 41 may be inserted into the first insertion groove. Alternatively, the second flow collector tube 30 may be provided with a second insertion groove, which extends along the axial direction of the second flow collector tube 30, and the other end of the second flat tube 41 may be inserted into the second insertion groove. Alternatively, the first flow collector pipe 20 is provided with a first insertion groove, which extends along the axial direction of the first flow collector pipe 20, and one end of the second flat pipe 41 is inserted into the first insertion groove, and the second flow collector pipe 30 is provided with a second insertion groove, which extends along the axial direction of the second flow collector pipe 30, and the other end of the second flat pipe 41 is inserted into the second insertion groove.

[0064] Preferably, the first flow collector pipe 20 is provided with a first insertion groove extending along the axial direction of the first flow collector pipe 20, with one end of the second flat tube 41 inserted into the first insertion groove, and the second flow collector pipe 30 is provided with a second insertion groove extending along the axial direction of the second flow collector pipe 30, with the other end of the second flat tube 41 inserted into the second insertion groove. This structural configuration facilitates inserting one end of the second flat tube 41 into the first insertion groove and the other end of the second flat tube 41 into the second insertion groove, facilitating attachment and detachment and direct connection. Specifically, in this embodiment, the first insertion groove and the second insertion groove are both located on the side wall of the first flow collector pipe 20.

[0065] In this embodiment, the second heat exchange section 40 includes a second flat tube 41 and a second fin 42, and the second flat tube 41 has a plurality of bent tube segments connected in sequence, and a second fin 42 may be provided within the bent tube segment, or a second fin 42 may be provided between two adjacent bent tube segments. For ease of installation and manufacturing, the number of second fins 42 in this embodiment is less than the number of fins in Example 2.

[0066] Example 4 of the present application provides a heat exchanger in which the inlet end of the second heat exchange section 40 also communicates with the first flow collecting pipe 20, and the outlet end of the second heat exchange section 40 also communicates with the second flow collecting pipe 30. The heat exchanger in this example is mainly distinguished from the heat exchanger in Example 3 in that the connection method between the inlet end of the second heat exchange section 40 and the first flow collecting pipe 20 is different, and the connection method between the outlet end of the second heat exchange section 40 and the second flow collecting pipe 30 is different.

[0067] Specifically, in this embodiment, connecting pipe members are provided at both the inlet and outlet ends of the second heat exchanger 40, such that the inlet end of the second heat exchanger 40 communicates with the first flow collecting pipe 20 via the connecting pipe member, and the outlet end of the second heat exchanger 40 communicates with the second flow collecting pipe 30 via the connecting pipe member. Using such a connection method simplifies the connection and makes operation easier.

[0068] Specifically, the second heat exchange section includes a third collection pipe, a fourth collection pipe, and a second flat pipe 41, and the second flat pipe 41 is connected to the third collection pipe and the fourth collection pipe, respectively, and the third collection pipe and the fourth collection pipe are connected to the first collection pipe 20 and the second collection pipe 30, respectively, via connecting pipes.

[0069] In all of the above embodiments, at least two second heat exchange sections 40 are provided, and the at least two second heat exchange sections 40 are provided at an interval, and one second heat exchange section 40 may be provided at one end of the first heat exchange section 10, and the other second heat exchange section 40 may be provided at the other end of the first heat exchange section 10. Using such a structural setting makes it easy to better improve the heat exchange performance and effectively fulfill the role of a windshield.

[0070] As shown in Figures 11 to 15, Example 5 of the present application provides a heat exchanger that is improved based on all the above examples. Specifically, this example has two second heat exchange sections 40, each located at both ends of the first heat exchange section 10. The inlet ends of the two second heat exchange sections 40 are connected via a first connecting pipe 51, and the outlet ends of the two second heat exchange sections 40 are connected via a second connecting pipe 52. The heat exchanger further includes a third connecting pipe 53 and a fourth connecting pipe 54 spaced apart from each other, each located on one of the second heat exchange sections 40. The third connecting pipe 53 is located between the second heat exchange section 40 and the first flow collecting pipe 20, and the fourth connecting pipe 54 is located between the second heat exchange section 40 and the second flow collecting pipe 30. By using such a structural setting, not only can the heat exchange medium in the first collecting pipe 20 easily flow into the inlet ends of the two heat exchange sections in sequence, but it can also easily collect the heat exchange medium flowing out from the outlet ends of the two heat exchange sections using the second collecting pipe 30, thereby eliminating the need for an additional collecting pipe structure, reducing the number of parts, and optimizing the structural layout.

[0071] As shown in Figures 16 to 19, Example 6 of the present application provides a heat exchanger that is an improvement on the basis of Examples 1 to 4. In this example, there are two second heat exchange sections 40, and the two second heat exchange sections 40 are provided at both ends of the first heat exchange section 10, respectively, with the inlet ends of the two second heat exchange sections 40 connected via a first connecting pipe 51 and the outlet ends of the two second heat exchange sections 40 connected via a second connecting pipe 52. The two second heat exchange sections 40 are provided independently of the first heat exchange section 10 so as to exchange heat independently of the first heat exchange section 10. By using such a structural setting, it is possible to facilitate independent heat exchange between the two connected second heat exchange sections 40 and the first heat exchange section 10, and to avoid interference between the heat exchange medium in the two connected second heat exchange sections 40 and the heat exchange medium in the first heat exchange section 10, thereby making it easy to achieve heat exchange with different effects and to meet different heat exchange requirements.

[0072] As shown in Figures 20 to 23, Example 7 of the present application provides a heat exchanger that is improved on the basis of Examples 1 to 4. In this example, there are two second heat exchange sections 40, and the two second heat exchange sections 40 are respectively provided at both ends of the first heat exchange section 10. The inlet ends of the two second heat exchange sections 40 are both connected to the side of the first flow collecting pipe 20, and the outlet ends of the two second heat exchange sections 40 are both connected to the side of the second flow collecting pipe 30. That is, the lengths of the first flow collecting pipe 20 and the second flow collecting pipe 30 are both greater than the gap between the two second heat exchange sections 40. The connection point between the inlet end of one second heat exchange section 40 and the first flow collecting pipe 20 and the connection point between the inlet end of the other second heat exchange section 40 and the first flow collecting pipe 20 are located at both ends of the first heat exchange section 10, and the connection point between the outlet end of one second heat exchange section 40 and the second flow collecting pipe 30 and the connection point between the outlet end of the other second heat exchange section 40 and the second flow collecting pipe 30 are located at both ends of the first heat exchange section 10. Using such a structural setting, it is only necessary to connect the two second heat exchange sections 40 to the nearby first flow collecting pipe 20 and second flow collecting pipe 30, which makes it easy to use and operate. Specifically, the heat exchanger in this embodiment further includes two fifth connecting pipes 55 and two sixth connecting pipes 56, and the two fifth connecting pipes 55 are respectively located at the connection points between the inlet ends of the two second heat exchange sections 40 and the first flow collecting pipe 20, and the two sixth connecting pipes 56 are respectively located at the connection points between the outlet ends of the two second heat exchange sections 40 and the second flow collecting pipe 30.

[0073] As shown in Figures 24 to 26, Example 8 of the present application provides a heat exchanger that is improved on the basis of Examples 1 to 4. In this example, there are two second heat exchange sections 40, and the two second heat exchange sections 40 are respectively provided at both ends of the first heat exchange section 10. The heat exchanger further includes two first connecting pipes 61 and two second connecting pipes 62, one end of each of the two first connecting pipes 61 is connected to both ends of the first flow collecting pipe 20, the other end of each of the two first connecting pipes 61 is connected to the inlet ends of the two second heat exchange sections 40, one end of each of the two second connecting pipes 62 is connected to both ends of the second flow collecting pipe 30, and the other end of each of the two second connecting pipes 62 is connected to the outlet ends of the two second heat exchange sections 40. The connection structure using two first connecting pipes 61 and two second connecting pipes 62 is simple and easy to connect. There is no need to make unnecessary improvements to the flow collecting pipe.

[0074] Specifically, the heat exchanger in this embodiment further includes two first collecting and connecting pipes 71 and two second collecting and connecting pipes 72, the two first collecting and connecting pipes 71 being directly connected to both ends of the first collecting and connecting pipe 20, the two first connecting pipes 61 being provided in one-to-one correspondence with the two first collecting and connecting pipes 71, and each first connecting pipe 61 being connected to the corresponding first collecting and connecting pipe 71 so as to be connected to the first collecting and connecting pipe 20 via the corresponding first collecting and connecting pipe 71. The two second collecting and connecting pipes 72 being directly connected to both ends of the second collecting and connecting pipe 30, the two second connecting pipes 62 being provided in one-to-one correspondence with the two second collecting and connecting pipes 72, and each second connecting pipe 62 being connected to the corresponding second collecting and connecting pipe 72 so as to be connected to the second collecting and connecting pipe 30 via the corresponding second collecting and connecting pipe 72.

[0075] 27 to 31, Example 9 of the present application provides a heat exchanger in which the second heat exchange section 40 is provided at an inclination toward the inside of the mounting area 113. By using such a structural setting, drainage can be facilitated.

[0076] Preferably, the second heat exchange section 40 in this embodiment has a top end 43 and a bottom end 44 arranged opposite to each other, with the top end 43 of the second heat exchange section 40 located at the connection point between the first heat exchange tube segment 111 and the second heat exchange tube segment 112, and the bottom end 44 of the second heat exchange section 40 located at the end of the first heat exchange tube segment 111 remote from the second heat exchange tube segment 112. Here, the top end 43 of the second heat exchange section 40 is inclined toward the inside of the mounting area 113 relative to the bottom end 44 of the second heat exchange section 40. Using such a structural setting not only facilitates drainage but also effectively fulfills the role of a windshield.

[0077] Example 10 of the present application provides a heat exchanger including a first heat exchange section 10, a first collecting tube 20 (the first collecting tube 20 may be an inlet collecting tube), a second collecting tube 30 (the second collecting tube 30 may be an outlet collecting tube), a second heat exchange section 40, and an intermediate collecting tube 80. The first heat exchange section 10 includes a plurality of first flat tubes 11 arranged at intervals, and the first flat tubes 11 include a first heat exchange tube segment 111 and a second heat exchange tube segment 112 connected to each other, and the first heat exchange tube segment 111 and the second heat exchange tube segment 112 are arranged at a preset angle to form an A-type heat exchanger structure. All of the first heat exchange tube segments 111 of the plurality of first flat tubes 11 are connected to the first collecting tube 20, and the second heat exchange tube segment 112 of the plurality of first flat tubes 11 are connected to the second collecting tube 30. At least a portion of the second heat exchange section 40 is provided at the end of the first heat exchange section 10 so as to surround and form an air duct. The intermediate collection pipe 80 has an inlet pipe segment 81 and an outlet pipe segment 82 that are independent of each other, the inlet end of the second heat exchange section 40 is connected to the inlet pipe segment 81, the outlet end of the second heat exchange section 40 is connected to the outlet pipe segment 82, the inlet end of the inlet pipe segment 81 is connected to the first collection pipe 20, and the outlet end of the outlet pipe segment 82 is connected to the second collection pipe 30. It should be noted that the term "air duct" in "at least a portion of the second heat exchange section 40 is provided at the end of the first heat exchange section 10 so as to surround and form an air duct" refers to the main flow path through which air enters the heat exchanger.

[0078] In the heat exchanger provided by this embodiment, a second heat exchange section 40 is provided at the end of the first heat exchange section 10, and at least a portion of the second heat exchange section 40 and the first heat exchange section 10 surround the air duct. This allows both the first heat exchange section 10 and the second heat exchange section 40 to exchange heat when air enters the air duct. This not only allows the second heat exchange section 40 to function as a windshield, but also allows for effective heat exchange. This increases the heat exchange area of ​​the entire heat exchanger, improving heat exchange performance, and enabling more efficient use of space and a more compact space layout. Therefore, the heat exchanger provided by this embodiment solves the technical problem of the poor heat exchange performance of A-type heat exchangers in the prior art.

[0079] Specifically, the fluid in the first flow collecting pipe 20 flows into the first heat exchange section 10 and then flows into the second heat exchange section 40 through the inlet pipe segment 81 of the intermediate flow collecting pipe 80. After exchanging heat in the first heat exchange section 10, the fluid enters the second flow collecting pipe 30, and after exchanging heat in the second heat exchange section 40, the fluid enters the second flow collecting pipe 30 through the outlet pipe segment 82. The first flow collecting pipe 20 is provided with an inlet connecting pipe 101, and the second flow collecting pipe 30 is provided with an outlet connecting pipe 102. The inlet pipe segment 81 and the outlet pipe segment 82 are separated by a spacer 83.

[0080] 32 to 37 , in Example 10, the second heat exchange section 40 includes at least two independently provided heat exchange structures 45, and there are at least two intermediate flow collector pipes 80. The at least two heat exchange structures 45 are provided at intervals along the extension direction from one end of the first heat exchange section 10 to the other end of the first heat exchange section 10. The at least two heat exchange structures 45 are provided in one-to-one correspondence with the at least two intermediate flow collector pipes 80, and each heat exchange structure 45 is connected to the corresponding intermediate flow collector pipe 80. By using such a structural setting, it is possible to easily connect each heat exchange structure 45 to the first flow collector pipe 20 and the second flow collector pipe 30 through the corresponding intermediate flow collector pipe 80, so that each heat exchange structure 45 exchanges heat independently. In addition, by setting a layout direction in which at least two independent heat exchange structures 45 are spaced apart, it is possible to make full use of the space, thereby further improving the compactness of the space layout and effectively improving the heat exchange performance of the heat exchanger. The first heat exchange section 10 in this embodiment further includes a first fin 12.

[0081] Preferably, the second heat exchange section 40 in this embodiment includes two independently provided heat exchange structures 45, and the two heat exchange structures 45 are respectively provided at both ends of the first heat exchange section 10. There are two intermediate flow collection pipes 80, and the two heat exchange structures 45 are provided in one-to-one correspondence with the two intermediate flow collection pipes 80, and each heat exchange structure 45 is connected to the corresponding intermediate flow collection pipe 80. Using such a structural configuration can effectively fulfill the role of a windshield and facilitate full use of space, thereby improving the compactness of the structural layout and the heat exchange performance of the heat exchanger.

[0082] In this embodiment, there is a triangular mounting area between the first heat exchange tube segment 111 and the second heat exchange tube segment 112. The mounting area is a triangular area, and the heat exchange structure 45 is mounted within the triangular area. The outer shape of the heat exchange structure 45 is a triangular or trapezoidal shape that fits the mounting area. At least a portion of the heat exchange structure 45 is closely attached to the first heat exchange tube segment 111 or the second heat exchange tube segment 112. This structural configuration can facilitate improving wind protection performance, improving the installation stability of the heat exchange structure 45, optimizing the structural layout, and improving the compactness of the structural layout. To make full use of the heat exchange space of the heat exchanger and effectively fulfill the role of wind protection, in this embodiment, the outer dimensions of the heat exchange structure 45 are maintained to completely match the size of the space between the first heat exchange tube segment 111 and the second heat exchange tube segment 112 of the first heat exchange section 10, thereby fully utilizing the space and fulfilling a certain role of wind protection.

[0083] Preferably, the angle between the first heat exchange tube segment 111 and the second heat exchange tube segment 112 in this embodiment forms the apex angle of a triangular area, and the apex angle of the triangular area is the same as the apex angle of the triangular structure or trapezoidal structure. Using this structure can facilitate better filling of the second heat exchange section 40 into the installation area, and better play a blocking role.

[0084] Specifically, the heat exchange structure 45 in this embodiment includes a plurality of third flat tubes 46 spaced apart along the height direction, with the inlet ends of the third flat tubes 46 connected to the inlet pipe segment 81 and the outlet ends of the third flat tubes 46 connected to the outlet pipe segment 82. By using such a structural configuration, a normal heat exchange flow path can be easily formed, and the heat exchange efficiency can be easily improved.

[0085] In this embodiment, the third flat tube 46 includes a first pipe segment 461, a second pipe segment 462, and a third pipe segment 463 connected in sequence, the first pipe segment 461 and the third pipe segment 463 extending vertically or at a preset angle relative to the vertical, the second pipe segment 462 extending horizontally or at a preset angle relative to the horizontal, one end of the first pipe segment 461 remote from the second pipe segment 462 forming the inlet end of the third flat tube 46, and one end of the third pipe segment 463 remote from the second pipe segment 462 forming the outlet end of the third flat tube 46. Using such a structural configuration not only makes it easy to form a triangular structure but also to form a complete heat exchange flow path. Preferably, both the first pipe segment 461 and the third pipe segment 463 can be inclined relative to the vertical direction, that is, both the first pipe segment 461 and the third pipe segment 463 can be inclined toward the inside of the installation area, which not only facilitates drainage but also makes it easier to increase the heat exchange area.

[0086] Preferably, along the extending direction from the bottom end of the heat exchange structure 45 to the top end of the heat exchange structure 45, the length of the plurality of second pipe segments 462 gradually decreases, and the length of the plurality of first pipe segments 461 and / or the length of the plurality of third pipe segments 463 gradually increases. Preferably, by gradually increasing the length of the plurality of first pipe segments 461 and the length of the plurality of third pipe segments, it is possible to easily form a triangular structure that facilitates sufficient filling of the end of the mounting area, and thus facilitates effectively fulfilling the roles of wind protection and heat exchange.

[0087] Specifically, in this embodiment, the third flat tube 46 has a one-piece molded structure. The connection between the first pipe segment 461 and the second pipe segment 462 may have an arc-shaped bent transition structure, or the connection between the second pipe segment 462 and the third pipe segment 463 may have an arc-shaped bent transition structure. Alternatively, both the connection between the first pipe segment 461 and the second pipe segment 462 and the connection between the second pipe segment 462 and the third pipe segment 463 may have an arc-shaped bent transition structure. Preferably, in this embodiment, both the connection between the first pipe segment 461 and the second pipe segment 462 and the connection between the second pipe segment 462 and the third pipe segment 463 have an arc-shaped bent transition structure, thereby avoiding or reducing stress concentration at the connection points, facilitating a smooth transition, and improving structural strength. Specifically, in this embodiment, the third flat tube 46 may be formed by bending.

[0088] In this embodiment, the two triangular heat exchange structures 45 are independently arranged, and the first pipe segment 461 and the third pipe segment 463 in the heat exchange structure 45 mainly play a role in heat exchange, while the second pipe segment 462 extends along the horizontal direction and mainly plays a role in connecting the first pipe segment 461 and the third pipe segment 463. In this embodiment, the arc-shaped folded transition structure may be a folded circle, or the folded circle may be flattened, and the folded shape is not limited.

[0089] 38 to 40 , Example 11 of the present application provides a heat exchanger that is mainly distinguished from the heat exchanger of Example 1 in that the heat exchange structure 45 of the second heat exchange section 40 has a different structure and connection manner. Specifically, the heat exchanger of this example further includes a connecting pipe 90, and the connecting pipe 90 and the intermediate flow collector pipe 80 are respectively provided at both ends of the first heat exchange section 10. The second heat exchange section 40 includes two heat exchange structures 45 that are arranged to communicate with each other, and the two heat exchange structures 45 are respectively provided at both ends of the first heat exchange section 10, so that the fluid entering through the inlet pipe segment 81 passes through the two heat exchange structures 45 and then discharges from the outlet pipe segment 82, with one heat exchange structure 45 connected to the connecting pipe 90 and the other heat exchange structure 45 connected to the intermediate flow collector pipe 80. By using such a structural setting, the role of a windshield can be effectively fulfilled and the space can be easily utilized to its full potential, thereby improving the compactness of the structural layout and the heat exchange performance of the heat exchanger.

[0090] Specifically, in this embodiment, the second heat exchange section 40 further includes a fourth flat tube 47, and the fourth flat tube 47 has a fourth pipe segment 471, a fifth pipe segment 472, and a sixth pipe segment 473 connected in sequence, and the fourth pipe segment 471 and the sixth pipe segment 473 all extend along the vertical direction or along a direction forming a preset angle with respect to the vertical direction, and the fourth pipe segment 471 is located at one end of the first heat exchange section 10 and is connected to the intermediate collection pipe 80, the fifth pipe segment 472 is located between one end of the first heat exchange section 10 and the other end of the first heat exchange section 10, and the sixth pipe segment 473 is located at the other end of the first heat exchange section 10 and is connected to the connecting pipe 90. Here, there are a plurality of fourth flat tubes 47, and the plurality of fourth flat tubes 47 are arranged at intervals along the extension direction of the intermediate flow collector pipe 80, the plurality of fourth pipe segments 471 surround one heat exchange structure 45, the plurality of sixth pipe segments 473 surround the other heat exchange structure 45, and the one heat exchange structure 45 and the other heat exchange structure 45 are connected via the plurality of fifth pipe segments 472. By using such a structural setting, the installation area can be effectively utilized, the structural layout can be made compact, and the heat exchange performance of the heat exchanger can be effectively improved.

[0091] Preferably, in this embodiment, the fourth tube segment 471 and the sixth tube segment 473 can both extend along a direction forming a preset angle with respect to the vertical direction, so that the fourth tube segment 471 and the sixth tube segment 473 are both inclined toward the attachment area between the first heat exchange tube segment 111 and the second heat exchange tube segment 112, thereby facilitating drainage and increasing the heat exchange area. Thus, the length of the fifth tube segment 472 gradually decreases along the direction from the bottom end (corresponding to the open end of the first heat exchange section 10) to the top end (corresponding to the connection point between the first heat exchange tube segment 111 and the second heat exchange tube segment 112 of the first heat exchange section 10) of the heat exchange structure 45.

[0092] In this embodiment, there is a mounting area between the first heat exchange tube segment 111 and the second heat exchange tube segment 112, the mounting area being a triangular area, and at least a portion of the heat exchange structure 45 is closely attached to the first heat exchange tube segment 111 or the second heat exchange tube segment 112. The lengths of the fourth tube segments 471 of the fourth flat tubes 47 along the extension direction of the intermediate flow collector tube 80 first increase and then decrease so that the fourth tube segments 471 surround and form a triangular or trapezoidal structure that fits the mounting area. Alternatively, the lengths of the sixth tube segments 473 of the fourth flat tubes 47 along the extension direction of the intermediate flow collector tube 80 first increase and then decrease so that the sixth tube segments 473 surround and form a triangular or trapezoidal structure that fits the mounting area. Alternatively, by first increasing and then decreasing the lengths of the multiple fourth pipe segments 471 and the multiple sixth pipe segments 473 along the extension direction of the intermediate collection pipe 80, it becomes easy to form the heat exchange structure 45 surrounded by the multiple fourth pipe segments 471 and the other heat exchange structure 45 surrounded by the multiple sixth pipe segments 473 into a triangular or trapezoidal structure that fits the installation area.

[0093] Preferably, the lengths of the plurality of fourth pipe segments 471 and the plurality of sixth pipe segments 473 are both first increased and then decreased along the extending direction of the intermediate flow collecting pipe 80. Using such a structural setting simplifies the structure, compacts the layout, optimizes the structural layout, and improves the heat exchange performance.

[0094] Specifically, the fourth flat tube 47 has an integrally molded structure. The connection between the fourth pipe segment 471 and the fifth pipe segment 472 may have an arc-shaped bent transition structure, or the connection between the fifth pipe segment 472 and the sixth pipe segment 473 may have an arc-shaped bent transition structure, or both the connection between the fourth pipe segment 471 and the fifth pipe segment 472 and the connection between the fifth pipe segment 472 and the sixth pipe segment 473 may have an arc-shaped bent transition structure.

[0095] Preferably, in this embodiment, the connection between the fourth pipe segment 471 and the fifth pipe segment 472 and the connection between the fifth pipe segment 472 and the sixth pipe segment 473 are both formed with an arc-shaped bent transition structure, thereby avoiding or reducing stress concentration at the connection points, facilitating a smooth transition, and improving structural strength. Specifically, in this embodiment, the fourth flat tube 47 may be formed by bending.

[0096] In this embodiment, the fourth pipe segment 471 and the sixth pipe segment 473 of the fourth flat tube 47 mainly play a role in heat exchange, and the fifth pipe segment 472 plays a role in connecting the fourth pipe segment 471 and the sixth pipe segment 473, and the shape and structure of the fifth pipe segment 472 are not limited.

[0097] As shown in Figures 41 to 55, Example 12 of the present application provides a heat exchanger including a first heat exchange section 10 and a second heat exchange section 40, the first heat exchange section 10 including a first heat exchange assembly 13 and a second heat exchange assembly 14 connected to each other, the first heat exchange assembly 13 including a first flow collector tube 20 and a plurality of first heat exchange flat tubes 131 connected to each other, and the plurality of first heat exchange flat tubes 131 being spaced apart along a first preset direction. The second heat exchange assembly 14 is connected to the first heat exchange assembly 13 and includes a second flow collector tube 30 and a plurality of second heat exchange flat tubes 141 connected to each other. The plurality of second heat exchange flat tubes 141 are spaced apart along a second preset direction, and the first and second preset directions form a preset angle. The second heat exchange section 40 is provided at the ends of the first and second heat exchange assemblies 13 and 14. The first, second, and second heat exchange assemblies 13, 14, and 40 surround and form an air passage. The air passage here refers to the main flow path through which air enters the heat exchanger. Specifically, the first, second, and second heat exchange assemblies 14, 14, and 40 are all connected via a connecting joint tube 110.

[0098] In the heat exchanger provided by this embodiment, the first heat exchange assembly 13, the second heat exchange assembly 14, and the second heat exchange unit 40 surround the air passage, allowing the second heat exchange unit 40 to effectively function as a windshield. Furthermore, the first heat exchange assembly 13, the second heat exchange assembly 14, and the second heat exchange unit 40 can all exchange heat, thereby increasing the overall heat exchange area, improving heat exchange performance, and enabling more efficient space utilization and a more compact space layout. Furthermore, by using the connection joint tube 110 to connect the first heat exchange assembly 13 and the second heat exchange assembly 14, the first heat exchange flat tubes 131 of the first heat exchange assembly 13 can each be a long, straight pipe segment, and the second heat exchange flat tubes 141 of the second heat exchange assembly 14 can also be a long, straight pipe segment, eliminating the need for bent pipe segments and simplifying the structure. Therefore, the heat exchanger provided by this embodiment can solve the technical problem that the A-type heat exchanger in the prior art has poor heat exchange performance.

[0099] Specifically, in this embodiment, there is an installation area between the first heat exchange assembly 13 and the second heat exchange assembly 14, and the second heat exchange unit 40 is located within the installation area. Using this installation method makes it easy to further optimize the installation position of the second heat exchange unit 40, which not only optimizes the overall structural layout of the second heat exchange unit 40 but also effectively increases the heat exchange area of ​​the entire heat exchanger, improving heat exchange performance.

[0100] In this embodiment, the mounting area is a triangular area, the second heat exchanger unit 40 has a triangular or trapezoidal structure that fits the mounting area, and at least a portion of the second heat exchanger unit 40 is closely attached to the first heat exchanger assembly 13 and the second heat exchanger assembly 14. This structural configuration facilitates improving wind protection, improving the installation stability of the second heat exchanger unit 40, optimizing the structural layout, and increasing the compactness of the structural layout. To fully utilize the heat exchange space of the heat exchanger and effectively fulfill its role as a wind protection, in this embodiment, the outer dimensions of the second heat exchanger unit 40 are aligned perfectly with the angle between the first heat exchanger assembly 13 and the second heat exchanger assembly 14, thereby fully utilizing the space and fulfilling a certain degree of wind protection function.

[0101] Specifically, in this embodiment, the included angle between the first heat exchange assembly 13 and the second heat exchange assembly 14 forms the apex angle of the triangular area, which is the same as the apex angle of the triangular structure. Using this structural setting makes it easier for the second heat exchanger 40 to better fill the installation area, better perform its insulating role, and more effectively perform its role as a windshield.

[0102] In Example 12, the second heat exchange section 40 includes third heat exchange flat tubes 48, which have a plurality of bent pipe segments connected in series, and the heights of the bent pipe segments initially gradually increase or decrease so that the edges of the bent pipe segments surround and form a triangular structure. This structural configuration not only simplifies the structure and makes it easy to form the triangular structure, facilitating production and manufacturing, but also reduces the flow resistance of the refrigerant within the second heat exchange section 40.

[0103] Preferably, in this embodiment, there are multiple third heat exchange flat tubes 48, and the multiple third heat exchange flat tubes 48 are spaced apart along the height direction, which makes it easy to reduce the spacing between the bent pipe segments, improving heat exchange efficiency and providing an effective windbreak. Specifically, the multiple third heat exchange flat tubes 48 have overlapping projections in the height direction, which makes it easier to function as a windbreak and improves heat exchange efficiency.

[0104] Specifically, third fins are provided between the plurality of third heat exchange flat tubes 48 in this embodiment.

[0105] In this embodiment, in order to facilitate management of inflow and outflow to and from the plurality of third heat exchange flat tubes 48, the inlet ends of the plurality of third heat exchange flat tubes 48 are connected and the outlet ends of the plurality of third heat exchange flat tubes 48 are connected. Specifically, in this embodiment, the second heat exchange section 40 includes a third flow collecting pipe 4100, and the inlet ends of the plurality of third heat exchange flat tubes 48 are connected via one third flow collecting pipe 4100 and the outlet ends of the plurality of third heat exchange flat tubes 48 are connected via the other third flow collecting pipe 4100.

[0106] Example 13 of the present application provides a heat exchanger that is distinguishable from the heat exchanger of Example 12 by the different structure of the second heat exchange section 40. Specifically, the second heat exchange section 40 of this example includes a plurality of third heat exchange flat tubes 48, which are spaced apart along the extension direction from the first heat exchange assembly 13 to the second heat exchange assembly 14. Each third heat exchange flat tube 48 has a plurality of bent tube segments connected in sequence, and the heights of the bent tube segments of the third heat exchange flat tubes 48 are initially gradually increased or gradually decreased so that the edges of the third heat exchange flat tubes 48 form a triangular structure. Using such a structural configuration simplifies the structure, makes it easy to form the triangular structure, and facilitates production and manufacturing. It also reduces the flow resistance of the refrigerant within a single third heat exchange flat tube 48.

[0107] Specifically, in order to facilitate concentrated inflow into the inlet ends of the multiple third heat exchange flat tubes 48 and concentrated recovery from the outlet ends of the multiple third heat exchange flat tubes 48, the inlet ends of the multiple third heat exchange flat tubes 48 in this embodiment are connected and the outlet ends of the multiple third heat exchange flat tubes 48 are connected.

[0108] In this embodiment, the second heat exchange section 40 further includes an inlet connecting pipe 491, which extends along the extension direction from the first heat exchange assembly 13 to the second heat exchange assembly 14, and the inlet ends of the multiple third heat exchange flat tubes 48 are all connected to the inlet connecting pipe 491, and / or the second heat exchange section 40 further includes an outlet connecting pipe 492, which extends along the extension direction from the first heat exchange assembly 13 to the second heat exchange assembly 14, and the outlet ends of the multiple third heat exchange flat tubes 48 are all connected to the outlet connecting pipe 492.

[0109] Preferably, the second heat exchange section 40 in this embodiment includes an inlet connecting pipe 491 and an outlet connecting pipe 492, and the inlet connecting pipe 491 extends along the extension direction from the first heat exchange assembly 13 to the second heat exchange assembly 14. The inlet connecting pipe 491 provides concentrated refrigerant to the plurality of third heat exchange flat tubes 48, and the outlet connecting pipe 492 facilitates concentrated recovery of the refrigerant in the plurality of third heat exchange flat tubes 48, so that the inlet ends of the plurality of third heat exchange flat tubes 48 are all connected to the inlet connecting pipe 491.

[0110] The present application solves the structural drawbacks that arise when applying a folded heat exchanger by using two unfolded integrated heat exchangers (including a first heat exchange assembly 13 and a second heat exchange assembly 14) and connecting them in a V-shape with a connecting joint tube 110. At the same time, by adding a tube belt type heat exchanger (second heat exchange section 40) to the side of the V-shape where the two single-row heat exchangers are connected, the effective heat exchange area is further increased, improving heat exchange efficiency, making the structure more compact, and increasing space utilization rate.

[0111] Specifically, in this embodiment, the connecting pipes for the two single-row heat exchangers are connected in a V-shape, so there are no bent segments, and by filling the sides of the V-shape with tube belt heat exchangers, the heat exchange area can be increased and at the same time, it can also serve as a windshield.

[0112] In Example 12, in order to reduce the flow resistance of the refrigerant in the tube belt heat exchanger, three flat tubes can be overlapped and bent into a triangle and connected in parallel to a V-type single-row heat exchanger. Alternatively, within the limited space on the side of the V-type, two or four flat tubes can be overlapped and bent into other shapes such as a triangle or a trapezoid to reduce the flow resistance and connected to a V-type single-row heat exchanger.

[0113] In Example 13, in order to reduce the flow resistance of the refrigerant in the tube belt heat exchanger, the flat tube can be bent into three inlets and outlets to form a triangle and connected to a V-type single-row heat exchanger, but optionally it can be bent into two or four to form a triangle, trapezoid, etc.

[0114] As can be seen from the above description, Examples 12 and 13 of the present application achieve the following technical effects: Increase the effective heat exchange area, improve the heat exchange efficiency, make the structure compact, and increase the space utilization rate.

[0115] 1 to 10, an embodiment of the present application provides a heat exchange assembly including a folded flat tubular structure having a heat exchange inlet portion, a heat exchange outlet portion, and a folded heat exchange flow path structure communicating with both the heat exchange inlet portion and the heat exchange outlet portion, wherein the edges of the folded flat tubular structure surround and form a triangular or trapezoidal structure.

[0116] The heat exchange assembly structure provided by this embodiment can replace the sheet metal members of the A-type heat exchange assembly with the above-mentioned heat exchange assembly structure in specific use, thereby serving as a windshield for the A-type heat exchanger and improving the compactness of the structure, as well as effectively improving the heat exchange effect of the entire A-type heat exchanger. Therefore, the heat exchange assembly provided by this embodiment can easily and effectively improve the heat exchange performance of the A-type heat exchanger.

[0117] In Example 1, the bent flat tube structure includes a first flat tube 11, which includes a plurality of first heat exchange tube segments 111 spaced apart along the horizontal direction and arranged to communicate with each other, and all of the first heat exchange tube segments 111 extend along the vertical direction.

[0118] Specifically, in this embodiment, the heights of the plurality of first heat exchange tube segments 111 first increase and then decrease, with one end of the first flat tube 11 forming a heat exchange inlet portion and the other end of the first flat tube 11 forming a heat exchange outlet portion. Using this structural setting, a bent flat tube structure can be formed using only one bent first flat tube 11, which simplifies the structure, makes it easy to manufacture and implement, and effectively reduces manufacturing costs.

[0119] In this embodiment, the heat exchange assembly further includes a first collecting pipe 20 and a second collecting pipe 30, with the heat exchange inlet portion connected to the first collecting pipe 20 and the heat exchange outlet portion connected to the second collecting pipe 30.

[0120] The heat exchange assembly in this embodiment is of a single circuit tube belt type structure, which may be considered when the overall size of the heat exchange assembly is small.

[0121] Example 2 of the present application provides a heat exchange assembly in which the bent flat tube structure includes a first flat tube 11, and the first flat tube 11 includes a plurality of first heat exchange tube segments 111 spaced apart along the horizontal direction so as to communicate with each other, and the first heat exchange tube segments 111 all extend along the vertical direction. There are multiple first flat tubes 11, and the plurality of first flat tubes 11 are spaced apart along the horizontal direction, the heat exchange inlet section includes a plurality of first heat exchange inlets of the first flat tube 11, the heat exchange outlet section includes a plurality of first heat exchange outlets of the first flat tube 11, and the heights of the plurality of first heat exchange tube segments 111 of the plurality of first flat tubes 11 first increase and then decrease. Using this structural setting, the plurality of first flat tubes 11 spaced apart along the horizontal direction can easily form a triangular or trapezoidal structure around the edges of the bent flat tube structure. Furthermore, by providing multiple first flat tubes 11, the length of the heat exchange flow path within each first flat tube 11 can be reduced compared to a structure with a single flat tube, making it easier to reduce the heat exchange resistance of the refrigerant and improve the heat exchange effect.

[0122] Specifically, in this embodiment, the multiple first heat exchange inlets are spaced apart, and the multiple first heat exchange outlets are spaced apart. The heat exchange assembly further includes a first flow collecting pipe 20 and / or a second flow collecting pipe 30, wherein the multiple first heat exchange inlets are all connected to the first flow collecting pipe 20 and the first flow collecting pipe 20 extends along the direction in which the multiple first heat exchange inlets are spaced apart, and the multiple first heat exchange outlets are all connected to the second flow collecting pipe 30 and the second flow collecting pipe 30 extends along the direction in which the multiple first heat exchange outlets are spaced apart.

[0123] Preferably, the heat exchange assembly in this embodiment further includes a first flow collecting pipe 20 and a second flow collecting pipe 30, wherein the plurality of first heat exchange inlets are all connected to the first flow collecting pipe 20 and the first flow collecting pipe 20 extends along the direction in which the plurality of first heat exchange inlets are spaced apart, and the plurality of first heat exchange outlets are all connected to the second flow collecting pipe 30 and the second flow collecting pipe 30 extends along the direction in which the plurality of first heat exchange outlets are spaced apart. Using such a structural setting, it is possible to easily provide refrigerant to each of the plurality of first heat exchange inlets by the first flow collecting pipe 20, and it is possible to easily collect refrigerant flowing out from the plurality of first heat exchange outlets by the second flow collecting pipe 30.

[0124] The heat exchange assembly in this embodiment has a multi-circuit tube belt structure, and when the heat exchanger is long, this structure may be used to avoid increasing the flow resistance of the refrigerant and affecting the heat exchange performance.

[0125] In Example 3 of the present application, a heat exchange assembly is provided in which the folded flat tube structure includes a first flat tube 11, which includes a plurality of first heat exchange tube segments 111 spaced apart along the horizontal direction and communicating with each other, and the first heat exchange tube segments 111 all extend along the vertical direction. Specifically, in this example, the heights of the plurality of first heat exchange tube segments 111 of the first flat tube 11 first increase and then decrease, and there are multiple first flat tubes 11, and the plurality of first flat tubes 11 are spaced apart along the vertical direction. This structural configuration can effectively increase the number of heat exchange channels, which can effectively improve the heat exchange effect. The structure in this example is a multiple single-circuit tube belt structure, which can also be used for small-sized heat exchange assemblies.

[0126] Specifically, the heat exchange assembly in this embodiment includes a first collection pipe 20 and a second collection pipe 30, the heat exchange inlet section includes a plurality of first heat exchange inlets of the first flat tubes 11, the heat exchange outlet section includes a plurality of first heat exchange outlets of the first flat tubes 11, and the plurality of first heat exchange inlets are all connected to the first collection pipe 20 (the first collection pipe may be an inlet collection pipe), and the plurality of first heat exchange outlets are all connected to the second collection pipe 30 (the second collection pipe may be an outlet collection pipe).

[0127] Example 4 of the present application provides a heat exchange assembly in which the bent flat tube structure includes a first flat tube 11, which includes a plurality of first heat exchange tube segments 111 spaced apart horizontally and connected to each other, and all of the first heat exchange tube segments 111 extend vertically. In this example, the heights of the first heat exchange tube segments 111 of the first flat tube 11 first increase and then decrease. The bent flat tube structure further includes a second flat tube 41, which includes a plurality of second heat exchange tube segments 112 spaced apart horizontally and connected to each other, which extend vertically, and all of the second heat exchange tube segments 112 have the same height. The first heat exchange tube segments 111 are attached above the second heat exchange tube segments 112. Using this structural configuration, a bent flat tube structure with triangular or trapezoidal edges can be easily formed. Furthermore, by setting the layout of the first flat tubes 11 and the second flat tubes 41, the structural layout of the heat exchange assembly is also optimized, the structural compactness of the heat exchange assembly is improved, the length of the heat exchange flow path in each flat tube is reduced, and the fluid resistance in the corresponding flat tube is further reduced.

[0128] Example 5 of the present application provides a heat exchange assembly in which the folded flat tube structure includes a plurality of first inclined segments 4131 and a plurality of second inclined segments 4141, the plurality of first inclined segments 4131 being arranged in one-to-one correspondence with the plurality of second inclined segments 4141, and each first inclined segment 4131 and its corresponding second inclined segment 4141 being connected to form a triangular structure. Specifically, the plurality of first inclined segments 4131 are arranged at intervals along the horizontal direction, and the plurality of second inclined segments 4141 are arranged at intervals along the horizontal direction, and the outermost first inclined segment 4131 and the outermost second inclined segment 4141 form edges of the folded flat tube structure and surround a triangular or trapezoidal structure.

[0129] In a sixth embodiment of the present application, the bent flat tube structure includes a third flat tube 46 and a fourth flat tube 47, the third flat tube 46 includes a plurality of third heat exchange tube segments spaced apart horizontally to communicate with each other, and the fourth flat tube 47 includes a plurality of fourth heat exchange tube segments spaced apart horizontally to communicate with each other, each third heat exchange tube segment including a first inclined segment 4131 and each fourth heat exchange tube segment including a second inclined segment 4141, the first inclined segments 4131 corresponding to the second inclined segments 4141 in a one-to-one correspondence, and each first inclined segment 4131 and the corresponding second inclined segment 4141 abutting to form a surrounding triangular structure. Using such a structural configuration can optimize the structural layout of the bent flat tube structure, making it easier to improve the compactness of the structural configuration. Specifically, in this embodiment, the third heat exchange tube segment further includes a first vertical segment 4132, which is located below the first inclined segment 4131 and is connected to the first inclined segment 4131, and the fourth heat exchange tube segment further includes a second vertical segment 4142, which is located below the second inclined segment 4141 and is connected to the second inclined segment 4141.

[0130] Preferably, the heat exchange assembly in this embodiment may further include a sixth flat tube 4120, which is located between the third flat tube 46 and the fourth flat tube 47, and which has a sixth heat exchange tube segment, a seventh heat exchange tube segment, and an eighth heat exchange tube segment arranged to be connected and spaced apart along the horizontal direction, wherein the sixth heat exchange tube segment includes a sixth vertical segment and a sixth inclined segment connected to each other, the sixth inclined segment is located above the sixth vertical segment, the seventh heat exchange tube segment includes a seventh vertical segment, and the eighth heat exchange tube segment includes an eighth vertical segment and an eighth inclined segment connected to each other, the eighth inclined segment is located above the eighth vertical segment. Here, the sixth heat exchange tube segment is located adjacent to the third heat exchange tube segment, the seventh heat exchange tube segment is located adjacent to the fourth heat exchange tube segment, the sixth inclined segment and the eighth inclined segment surround a triangular structure, and at least a portion of the seventh vertical segment is located within the triangular area surrounded by the sixth inclined segment and the eighth inclined segment. By using this structural configuration so that the heat exchange assembly includes the third flat tube 46, the fourth flat tube 47, and the sixth flat tube 4120, the structural layout of the heat exchange assembly can be optimized, which not only facilitates improving the structural compactness of the heat exchange assembly but also reduces the length of the heat exchange flow path in each flat tube and reduces heat exchange resistance.

[0131] Specifically, the heat exchange assembly in this embodiment further includes a third connecting pipe 53 and a fourth connecting pipe 54, the heat exchange inlet section includes a third heat exchange inlet of the third flat tube 46, a fourth heat exchange inlet of the fourth flat tube 47, and a sixth heat exchange inlet of the sixth flat tube 4120, and the heat exchange outlet section includes a third heat exchange outlet of the third flat tube 46, a fourth heat exchange outlet of the fourth flat tube 47, and a sixth heat exchange outlet of the sixth flat tube 4120. The third connecting pipe 53 extends along the direction in which the third heat exchange inlet, the fourth heat exchange inlet, and the sixth heat exchange inlet are spaced apart, and the third heat exchange inlet, the fourth heat exchange inlet, and the sixth heat exchange inlet are all connected to the third connecting pipe 53. The fourth connecting pipe 54 extends along the direction in which the third heat exchange outlet, the fourth heat exchange outlet and the sixth heat exchange outlet are spaced apart, and the third heat exchange outlet, the fourth heat exchange outlet and the sixth heat exchange outlet are all connected to the fourth connecting pipe 54.

[0132] Example 7 of the present application provides a heat exchange assembly in which the folded flat tube structure includes a fifth flat tube 4110, the fifth flat tube 4110 includes a plurality of fifth heat exchange tube segments spaced apart along the vertical direction and connected to each other, each fifth heat exchange tube segment including a third inclined segment 4151 and a fourth inclined segment 4152 connected to each other, the third inclined segment 4151 and the fourth inclined segment 4152 surroundingly forming a triangular structure. Using such a structural configuration can optimize the structural layout of the heat exchange assembly, making it easier to improve the structural compactness of the heat exchange assembly and also easier to surroundly form a triangular structure.

[0133] Specifically, in this embodiment, a third vertical segment 4153 is provided at one end of the third inclined segment 4151 away from the fourth inclined segment 4152, and a fourth vertical segment 4154 is provided at one end of the fourth inclined segment 4152 away from the third inclined segment 4151.

[0134] Specifically, in this embodiment, there are multiple fifth flat tubes 4110, and the multiple fifth flat tubes 4110 are spaced apart along a direction from the outside to the inside of the triangular structure. Preferably, there may be two fifth flat tubes 4110, and one fifth flat tube 4110 has an attachment area between its fifth heat exchange inlet and fifth heat exchange outlet, and the other fifth flat tube 4110 is attached within this attachment area, resulting in a compact structural layout.

[0135] In this embodiment, the heat exchange assembly further includes a fifth connecting pipe 55 and a sixth connecting pipe 56, and the plurality of fifth heat exchange inlets are all connected to the fifth connecting pipe 55, and the plurality of sixth heat exchange inlets are all connected to the sixth connecting pipe 56.

[0136] In all of the above embodiments, the single-circuit tube belt structure has low refrigerant flow resistance and can therefore be applied to heat exchange assemblies with small overall dimensions, while the multi-circuit tube belt structure has high refrigerant flow resistance and can therefore be applied to heat exchange assemblies with large overall dimensions.

[0137] In all of the above embodiments, the heat exchange inlet and outlet are both spaced apart and located at the bottom of the heat exchange assembly.

[0138] 56 to 65, an embodiment of the present application provides a heat exchanger in which the second heat exchange section 40 has a bent flat tube structure, and the bent flat tube structure has a heat exchange inlet section, a heat exchange outlet section, and a bent heat exchange flow path structure that communicates with both the heat exchange inlet section and the heat exchange outlet section, where the edge of the bent flat tube structure surrounds a triangular or trapezoidal structure.

[0139] The heat exchanger structure provided by this embodiment can replace the sheet metal members of the A-type heat exchanger with the above-mentioned heat exchanger structure, which not only acts as a windshield for the A-type heat exchanger and improves the compactness of the structure, but also effectively improves the heat exchange effect of the entire A-type heat exchanger. Therefore, by using the heat exchanger provided by this embodiment, it is easy to effectively improve the heat exchange performance of the A-type heat exchanger.

[0140] In Example 14, the bent flat tube structure includes a fifth flat tube 4110, which includes a plurality of fifth heat exchange tube segments 4111 spaced apart and connected to each other along the horizontal direction, and each of the fifth heat exchange tube segments 4111 extends along the vertical direction.

[0141] Specifically, in this embodiment, the heights of the plurality of fifth heat exchange tube segments 4111 first increase and then decrease, and one end of the fifth flat tube 4110 forms a heat exchange inlet portion, and the other end of the fifth flat tube 4110 forms a heat exchange outlet portion. Using this structural configuration, the bent flat tube structure can be formed using only one bent fifth flat tube 4110, which simplifies the structure, makes it easy to manufacture and implement, and effectively reduces manufacturing costs.

[0142] In this embodiment, the heat exchanger further includes a first collecting pipe 20 (which may be an inlet collecting pipe) and a second collecting pipe 30 (which may be an outlet collecting pipe), and the heat exchange inlet portion is connected to the first collecting pipe 20 and the heat exchange outlet portion is connected to the second collecting pipe 30.

[0143] The heat exchanger in this embodiment is of a single-circuit tube belt structure, which may be considered when the overall size of the heat exchanger is small.

[0144] In a fifteenth embodiment of the present application, a heat exchanger is provided in which the bent flat tube structure includes a fifth flat tube 4110, the fifth flat tube 4110 including a plurality of fifth heat exchange tube segments 4111 spaced apart horizontally and communicating with each other, the fifth heat exchange tube segments 4111 all extending vertically. The fifth flat tubes 4110 are spaced apart horizontally, the heat exchange inlet section includes a plurality of first heat exchange inlets of the fifth flat tubes 4110, the heat exchange outlet section includes a plurality of first heat exchange outlets of the fifth flat tubes 4110, and the heights of the plurality of fifth heat exchange tube segments 4111 of the plurality of fifth flat tubes 4110 first increase and then decrease. Using this structural configuration, the horizontally spaced fifth flat tubes 4110 facilitate the edges of the bent flat tube structure to form a triangular or trapezoidal structure. Furthermore, by providing multiple fifth flat tubes 4110, the length of the heat exchange flow path within each fifth flat tube 4110 can be reduced compared to a structure with a single flat tube, making it easier to reduce the heat exchange resistance of the refrigerant and improve the heat exchange effect.

[0145] Specifically, in this embodiment, the multiple first heat exchange inlets are spaced apart, and the multiple first heat exchange outlets are spaced apart. The heat exchanger further includes a first connecting pipe 120 and / or a second connecting pipe 130, where the multiple first heat exchange inlets are all connected to the first connecting pipe 120 and the first connecting pipe 120 extends along the direction in which the multiple first heat exchange inlets are spaced apart, and the multiple first heat exchange outlets are all connected to the second connecting pipe 130 and the second connecting pipe 130 extends along the direction in which the multiple first heat exchange outlets are spaced apart.

[0146] Preferably, the heat exchanger in this embodiment further includes a first connecting pipe 120 and a second connecting pipe 130, wherein the plurality of first heat exchange inlets are all connected to the first connecting pipe 120 and the first connecting pipe 120 extends along the direction in which the plurality of first heat exchange inlets are spaced apart, and the plurality of first heat exchange outlets are all connected to the second connecting pipe 130 and the second connecting pipe 130 extends along the direction in which the plurality of first heat exchange outlets are spaced apart. Using such a structural setting, it is easy to provide refrigerant to each of the plurality of first heat exchange inlets through the first connecting pipe 120, and it is easy to collect refrigerant flowing out from the plurality of first heat exchange outlets through the second connecting pipe 130.

[0147] The heat exchanger in this embodiment has a multi-circuit tube belt structure. When the heat exchanger is long, this structure can be used to avoid the refrigerant flow resistance from increasing and affecting the heat exchange performance.

[0148] In Example 16 of the present application, a heat exchanger is provided in which the bent flat tube structure includes a fifth flat tube 4110, which includes a plurality of fifth heat exchange tube segments 4111 spaced apart along the horizontal direction and connected to each other, with the fifth heat exchange tube segments 4111 all extending vertically. Specifically, in this example, the heights of the plurality of fifth heat exchange tube segments 4111 of the fifth flat tube 4110 first increase and then decrease, and there are multiple fifth flat tubes 4110, which are spaced apart along the vertical direction. This structural configuration can effectively increase the number of heat exchange channels, which can effectively improve the heat exchange effect. The structure in this example is a multiple single-circuit tube belt structure, which can also be used in small-sized heat exchangers.

[0149] Specifically, the heat exchanger in this embodiment includes a first flow collection pipe 20 and a second flow collection pipe 30, the heat exchange inlet section includes a plurality of first heat exchange inlets of the fifth flat tubes 4110, the heat exchange outlet section includes a plurality of first heat exchange outlets of the fifth flat tubes 4110, and the plurality of first heat exchange inlets are all connected to the first flow collection pipe 20, and the plurality of first heat exchange outlets are all connected to the second flow collection pipe 30.

[0150] Example 17 of the present application provides a heat exchanger in which the bent flat tube structure includes a fifth flat tube 4110, which includes a plurality of fifth heat exchange tube segments 4111 spaced apart horizontally and connected to each other, and the fifth heat exchange tube segments 4111 all extend vertically. The heights of the fifth heat exchange tube segments 4111 of the fifth flat tube 4110 of the heat exchanger in this example first increase and then decrease. The bent flat tube structure further includes a sixth flat tube 4120, which includes a plurality of sixth heat exchange tube segments 4121 spaced apart horizontally and connected to each other, the sixth heat exchange tube segments 4121 extending vertically, the sixth heat exchange tube segments 4121 having the same height, and the fifth heat exchange tube segments 4111 are attached above the sixth heat exchange tube segments 4121. By using such a structural setting, it is possible to easily form a folded flat tube structure with edges having a triangular or trapezoidal structure. Furthermore, by setting the layout of the fifth flat tube 4110 and the sixth flat tube 4120, the structural layout of the heat exchanger is also optimized, the structural compactness of the heat exchange assembly is improved, the length of the heat exchange flow path in each flat tube is reduced, and the fluid resistance in the corresponding flat tube is further reduced.

[0151] Example 18 of the present application provides a heat exchanger in which the folded flat tube structure includes a plurality of first inclined segments (4131) and a plurality of second inclined segments (4141), the plurality of first inclined segments (4131) are arranged in one-to-one correspondence with the plurality of second inclined segments (4141), and each first inclined segment (4131) and its corresponding second inclined segment (4141) are connected to form a triangular structure. Specifically, the plurality of first inclined segments (4131) are arranged at intervals along the horizontal direction, and the plurality of second inclined segments (4141) are arranged at intervals along the horizontal direction, and the outermost first inclined segment (4131) and the outermost second inclined segment (4141) form edges of the folded flat tube structure and surround a triangular or trapezoidal structure.

[0152] In Example 19 of the present application, the bent flat tube structure includes a seventh flat tube 4130 and an eighth flat tube 4140, the seventh flat tube 4130 including a plurality of third heat exchange tube segments spaced apart horizontally to communicate with each other, the eighth flat tube 4140 including a plurality of fourth heat exchange tube segments spaced apart horizontally to communicate with each other, each third heat exchange tube segment including a first inclined segment 4131, each fourth heat exchange tube segment including a second inclined segment 4141, the first inclined segments 4131 corresponding to the second inclined segments 4141 one-to-one, and each first inclined segment 4131 and the corresponding second inclined segment 4141 abutting to form a surrounding triangular structure, providing a heat exchanger. Using such a structural configuration can optimize the structural layout of the bent flat tube structure, making it easier to improve the compactness of the structural configuration. Specifically, in this embodiment, the third heat exchange tube segment further includes a first vertical segment 4132, which is located below the first inclined segment 4131 and is connected to the first inclined segment 4131, and the fourth heat exchange tube segment further includes a second vertical segment 4142, which is located below the second inclined segment 4141 and is connected to the second inclined segment 4141.

[0153] Preferably, the heat exchanger in this embodiment may further include a tenth flat tube 4160, which is located between the seventh flat tube 4130 and the eighth flat tube 4140, and which has a sixth heat exchange tube segment, a seventh heat exchange tube segment, and an eighth heat exchange tube segment spaced apart along the horizontal direction and communicating with each other, wherein the sixth heat exchange tube segment includes a sixth vertical segment and a sixth inclined segment connected to each other, the sixth inclined segment is located above the sixth vertical segment, the seventh heat exchange tube segment includes a seventh vertical segment, and the eighth heat exchange tube segment includes an eighth vertical segment and an eighth inclined segment connected to each other, the eighth inclined segment is located above the eighth vertical segment. Here, the sixth heat exchange tube segment is located adjacent to the third heat exchange tube segment, the seventh heat exchange tube segment is located adjacent to the fourth heat exchange tube segment, the sixth inclined segment and the eighth inclined segment surround a triangular structure, and at least a portion of the seventh vertical segment is located within the triangular area formed by the sixth inclined segment and the eighth inclined segment. By using this structural configuration, the heat exchanger includes the seventh flat tube 4130, the eighth flat tube 4140, and the tenth flat tube 4160. This not only facilitates optimizing the structural layout of the heat exchanger and improving its structural compactness, but also reduces the length of the heat exchange flow path in each flat tube, thereby reducing heat exchange resistance.

[0154] Specifically, the heat exchanger in this embodiment further includes a third connecting pipeline 140 and a fourth connecting pipeline 150, the heat exchange inlet section includes the third heat exchange inlet of the seventh flat tube 4130, the fourth heat exchange inlet of the eighth flat tube 4140, and the sixth heat exchange inlet of the tenth flat tube 4160, and the heat exchange outlet section includes the third heat exchange outlet of the seventh flat tube 4130, the fourth heat exchange outlet of the eighth flat tube 4140, and the sixth heat exchange outlet of the tenth flat tube 4160. The third connecting pipeline 140 extends along the direction in which the third heat exchange inlet, the fourth heat exchange inlet, and the sixth heat exchange inlet are spaced apart, and the third heat exchange inlet, the fourth heat exchange inlet, and the sixth heat exchange inlet are all connected to the third connecting pipeline 140. The fourth connecting pipe 150 extends along the direction in which the third heat exchange outlet, the fourth heat exchange outlet and the sixth heat exchange outlet are spaced apart, and the third heat exchange outlet, the fourth heat exchange outlet and the sixth heat exchange outlet are all connected to the fourth connecting pipe 150.

[0155] In Example 7 of the present application, a heat exchanger is provided in which the folded flat tube structure includes a ninth flat tube 4150, the ninth flat tube 4150 includes a plurality of fifth heat exchange tube segments spaced apart along the vertical direction and connected to each other, each fifth heat exchange tube segment including a third inclined segment 4151 and a fourth inclined segment 4152 connected to each other, the third inclined segment 4151 and the fourth inclined segment 4152 surroundingly forming a triangular structure. Using such a structural configuration can optimize the structural layout of the heat exchanger, making it easier to improve the structural compactness of the heat exchanger and also easier to surroundly form a triangular structure.

[0156] Specifically, in this embodiment, a third vertical segment 4153 is provided at one end of the third inclined segment 4151 away from the fourth inclined segment 4152, and a fourth vertical segment 4154 is provided at one end of the fourth inclined segment 4152 away from the third inclined segment 4151.

[0157] Specifically, in this embodiment, there are multiple ninth flat tubes 4150, and the multiple ninth flat tubes 4150 are spaced apart along a direction from the outside to the inside of the triangular structure. Preferably, there may be two ninth flat tubes 4150, and one of the ninth flat tubes 4150 has an attachment area between the fifth heat exchange inlet and the fifth heat exchange outlet, and the other ninth flat tube 4150 is attached within this attachment area, resulting in a compact structural layout.

[0158] In this embodiment, the heat exchanger further includes a fifth connecting pipe 160 and a sixth connecting pipe 170, and the plurality of fifth heat exchange inlets are all connected to the fifth connecting pipe 160, and the plurality of sixth heat exchange inlets are all connected to the sixth connecting pipe 170.

[0159] In all of the above embodiments, the single-circuit tube belt structure has low refrigerant flow resistance and can be applied to heat exchangers with small overall dimensions, while the multi-circuit tube belt structure has high refrigerant flow resistance and can be applied to heat exchangers with large overall dimensions.

[0160] In all the above embodiments, the heat exchange inlet and outlet are both spaced apart and located at the bottom of the heat exchanger.

[0161] The above embodiments of the present application achieve the following technical effects: increase the heat exchange area, improve the heat exchange performance, optimize the space layout of the heat exchanger, fully utilize the space of the heat exchanger, improve the compactness of the structure setting, and make the wind protection effective.

[0162] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present application. As used herein, the singular also intends to include the plural unless the context clearly dictates otherwise, and it should also be understood that when the terms "comprise" and / or "comprises" are used herein, it means that features, steps, operations, devices, assemblies, and / or combinations thereof are present.

[0163] Unless otherwise specifically stated, the relative arrangements of components and steps, formulas, and numerical values ​​described in these embodiments do not limit the scope of this application. At the same time, it should be understood that, for the sake of convenience, the dimensions of each part shown in the drawings are not drawn to actual proportions. Detailed descriptions of techniques, methods, and equipment already known to those skilled in the art may be omitted, but, where necessary, such techniques, methods, and equipment should be considered part of the approved specification. In all examples shown and described herein, any specific values ​​should be construed as merely illustrative and not limiting. Therefore, other examples of the illustrative embodiments may have different values. It should be noted that similar symbols and characters represent similar objects in the following drawings, so once something is defined in one drawing, there is no need to further describe it in subsequent drawings.

[0164] In the description of this application, orientations or positional relationships expressed by directional terms such as "front, rear, top, bottom, left, right," "lateral, longitudinal, vertical, horizontal," and "top, bottom" are generally based on the orientations or positional relationships shown in the drawings, but this is merely for the ease and simplicity of the description of this application, and unless otherwise stated, these directional terms do not necessarily indicate or imply that the devices or elements shown have a specific orientation or are constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of this application, and directional terms such as "inside, outside" refer to the inside and outside of the contours of each member itself.

[0165] For convenience of description, spatially relative terms such as "above," "upper," "on top of," "above," etc. may be used herein to describe the spatial location of one device or feature relative to another device or feature, as shown in the figures. It should be understood that spatially relative terms are intended to encompass different orientations during use or operation other than the orientation depicted in the figures of the device. For example, if a device in the figures were turned upside down, a device described as "above other devices or structures" or "on top of other devices or structures" would then be positioned "below other devices or structures" or "below other devices or structures." Thus, the exemplary term "above" can encompass two orientations: "above" and "below." The device can also be oriented in other different ways (rotated 90 degrees or positioned at other orientations) and a corresponding interpretation given to the spatially relative descriptions used herein.

[0166] It should be further explained that the use of terms such as "first" and "second" to define components is merely for distinguishing corresponding components, and unless otherwise specified, the terms do not have any special meaning and should not be understood as limiting the scope of protection of the present application.

[0167] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and those skilled in the art can make various modifications and variations to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, an attachment area (113) between the first heat exchange tube segment (111) and the second heat exchange tube segment (112), and the second heat exchange section (40) is located within the attachment area (113); the mounting area (113) is a triangular area, the second heat exchange section (40) has a triangular or trapezoidal structure that fits the mounting area (113), and at least a portion of the second heat exchange section (40) is provided in close contact with the first heat exchange tube segment (111) and the second heat exchange tube segment (112); The second heat exchange section (40) includes a second flat tube (41), the second flat tube (41) having a plurality of bent pipe segments connected in series, the heights of the plurality of bent pipe segments connected in series first gradually increasing and then gradually decreasing so that the edges of the plurality of bent pipe segments connected in series surround and form the triangular structure.

2. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, an attachment area (113) between the first heat exchange tube segment (111) and the second heat exchange tube segment (112), and the second heat exchange section (40) is located within the attachment area (113); the mounting area (113) is a triangular area, the second heat exchange section (40) has a triangular or trapezoidal structure that fits the mounting area (113), and at least a portion of the second heat exchange section (40) is provided in close contact with the first heat exchange tube segment (111) and the second heat exchange tube segment (112); The second heat exchange section (40) includes a second flat tube (41) and a second fin (42), the second flat tube (41) has a plurality of bent pipe segments connected in sequence, the heights of the plurality of bent pipe segments connected in sequence are initially arranged to gradually increase or gradually decrease, there are a plurality of second fins (42), and the second fins (42) are attached in the bent gaps of each of the plurality of bent pipe segments connected in sequence and between two adjacent bent pipe segments, wherein the two adjacent bent pipe segments include a first bent pipe segment (411) and a second bent pipe segment (412), and the height of the first bent pipe segment (411), the height of the second fin located between the first bent pipe segment (411) and the second bent pipe segment (412), and the height of the second bent pipe segment (412) gradually increase or decrease in order so that the edge of the second flat tube (41) and the edges of the multiple second fins (42) surround and form the triangular structure.

3. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, The inlet end of the second heat exchange section (40) communicates with the first flow collecting pipe (20), and the outlet end of the second heat exchange section (40) communicates with the second flow collecting pipe (30).

4. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, The second heat exchange section (40) includes a second flat tube (41), The first flow collecting pipe (20) is provided with a first insertion groove, the first insertion groove extends along the axial direction of the first flow collecting pipe (20), and one end of the second flat pipe (41) is inserted into the first insertion groove, and / or A heat exchanger, wherein the second collection pipe (30) is provided with a second insertion groove, the second insertion groove extending along the axial direction of the second collection pipe (30), and the other end of the second flat tube (41) is inserted into the second insertion groove.

5. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, the second heat exchange section (40) includes a third collection pipe, a fourth collection pipe, and a second flat pipe (41), the second flat pipe (41) is in communication with the third collection pipe and the fourth collection pipe, respectively, and the third collection pipe and the fourth collection pipe are in communication with the first collection pipe (20) and the second collection pipe (30), respectively, via connecting pipes.

6. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, the number of the second heat exchange sections (40) is two, the two second heat exchange sections (40) are provided at both ends of the first heat exchange section (10), and the both ends of the first heat exchange section (10) are both ends along the axial direction of the first flow collecting pipe (20) and the second flow collecting pipe (30); the inlet ends of the two second heat exchange sections (40) pass through a first connecting pipe (51) and share a common inlet pipe for connection to a pipe of an upstream system; a heat exchanger, wherein the outlet ends of the two second heat exchange sections (40) pass through a second connecting pipe (52) and share a common outlet pipe for connection to a pipe of a downstream system, The heat exchanger further includes a third connecting pipe (53) and a fourth connecting pipe (54) provided at an interval, the third connecting pipe (53) and the fourth connecting pipe (54) being both provided in one of the second heat exchange sections (40), the third connecting pipe (53) being located between the second heat exchange section (40) and the first flow collecting pipe (20), and the fourth connecting pipe (54) being located between the second heat exchange section (40) and the second flow collecting pipe (30). heat exchanger.

7. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, an attachment area (113) between the first heat exchange tube segment (111) and the second heat exchange tube segment (112), and the second heat exchange section (40) is located within the attachment area (113); a heat exchanger including two second heat exchange sections (40), the two second heat exchange sections (40) being provided at both ends of the first heat exchange section (10), the ends of the first heat exchange section (10) being both ends along the axial direction of the first flow collecting pipe (20) and the second flow collecting pipe (30), The inlet ends of the two second heat exchange sections (40) are both connected to a side of the first flow collecting pipe (20), the outlet ends of the two second heat exchange sections (40) are both connected to a side of the second flow collecting pipe (30), the connection point between the inlet end of one of the second heat exchange sections (40) and the first flow collecting pipe (20) and the connection point between the inlet end of the other of the second heat exchange sections (40) and the first flow collecting pipe (20) are located at both ends of the first heat exchange section (10), and the connection point between the outlet end of one of the second heat exchange sections (40) and the second flow collecting pipe (30) and the connection point between the outlet end of the other of the second heat exchange sections (40) and the second flow collecting pipe (30) are located at both ends of the first heat exchange section (10), or Alternatively, the heat exchanger may further include two first connecting pipes (61) and two second connecting pipes (62), one ends of the two first connecting pipes (61) being connected to both ends of the first collecting pipe (20), respectively, the other ends of the two first connecting pipes (61) being connected to the inlet ends of the two second heat exchange sections (40), one ends of the two second connecting pipes (62) being connected to both ends of the second collecting pipe (30), respectively, and the other ends of the two second connecting pipes (62) being connected to the outlet ends of the two second heat exchange sections (40), respectively.

8. The second heat exchange section (40) has a top end (43) and a bottom end (44) opposite to each other, the top end (43) of the second heat exchange section (40) being located at a connection point between the first heat exchange tube segment (111) and the second heat exchange tube segment (112), and the bottom end (44) of the second heat exchange section (40) being located at an end of the first heat exchange tube segment (111) remote from the second heat exchange tube segment (112); 8. The heat exchanger of claim 7, wherein the top end (43) of the second heat exchange section (40) is inclined toward the inside of the mounting area (113) relative to the bottom end (44) of the second heat exchange section (40).

9. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, Further comprising an intermediate collection pipe (80); The intermediate collecting pipe (80) has an inlet pipe segment (81) and an outlet pipe segment (82) that are independent of each other, the inlet end of the second heat exchange section (40) is connected to the inlet pipe segment (81), the outlet end of the second heat exchange section (40) is connected to the outlet pipe segment (82), the inlet end of the inlet pipe segment (81) is connected to the first collecting pipe (20), and the outlet end of the outlet pipe segment (82) is connected to the second collecting pipe (30).

10. 10. The heat exchanger according to claim 9, wherein the second heat exchange section (40) includes at least two heat exchange structures (45) provided independently, the number of the intermediate flow collecting pipes (80) is at least two, the at least two heat exchange structures (45) are provided at intervals along an extension direction from one end of the first heat exchange section (10) to the other end of the first heat exchange section (10), the at least two heat exchange structures (45) are provided in one-to-one correspondence with the at least two intermediate flow collecting pipes (80), and each of the heat exchange structures (45) is connected to a corresponding one of the intermediate flow collecting pipes (80).

11. the second heat exchange section (40) includes two heat exchange structures (45) provided independently, the two heat exchange structures (45) being provided at both ends of the first heat exchange section (10), the ends of the first heat exchange section (10) being both ends along the axial direction of the first flow collecting pipe (20) and the second flow collecting pipe (30); 10. The heat exchanger according to claim 9, wherein the number of the intermediate flow collecting pipes (80) is two, the two heat exchange structures (45) are provided in one-to-one correspondence with the two intermediate flow collecting pipes (80), and each of the heat exchange structures (45) is connected to a corresponding one of the intermediate flow collecting pipes (80).

12. 12. The heat exchanger according to claim 10 or 11, wherein there is an attachment area between the first heat exchange tube segment (111) and the second heat exchange tube segment (112), the attachment area being a triangular area, the heat exchange structure (45) being attached within the triangular area, the outer shape of the heat exchange structure (45) being a triangular or trapezoidal structure that fits the attachment area, and at least a portion of the heat exchange structure (45) being provided in close contact with the first heat exchange tube segment (111) or the second heat exchange tube segment (112).

13. 12. The heat exchanger of claim 10 or 11, wherein the heat exchange structure (45) includes a plurality of third flat tubes (46) spaced apart along a height direction, the inlet ends of the third flat tubes (46) being connected to the inlet pipe segment (81) and the outlet ends of the third flat tubes (46) being connected to the outlet pipe segment (82).

14. 14. The heat exchanger of claim 13, wherein the third flat tube (46) includes a first tube segment (461), a second tube segment (462), and a third tube segment (463) connected in sequence, the first tube segment (461) and the third tube segment (463) all extending vertically or along a direction forming a preset angle with respect to the vertical direction, the second tube segment (462) extending horizontally or along a direction forming a preset angle with respect to the horizontal direction, one end of the first tube segment (461) remote from the second tube segment (462) forming an inlet end of the third flat tube (46), and one end of the third tube segment (463) remote from the second tube segment (462) forming an outlet end of the third flat tube (46).

15. 15. The heat exchanger of claim 14, wherein the lengths of the second pipe segments (462) gradually decrease, and the lengths of the first pipe segments (461) and / or the third pipe segments (463) gradually increase along an extension direction from a bottom end of the heat exchange structure (45) to a top end of the heat exchange structure (45).

16. The third flat tube (46) has an integrally molded structure, The connection between the first pipe segment (461) and the second pipe segment (462) is an arcuate bent transition structure; and / or 15. The heat exchanger of claim 14, wherein the connection between the second pipe segment (462) and the third pipe segment (463) is an arcuate bend transition.

17. the second heat exchange unit (40) further includes a connecting pipe (90), the connecting pipe (90) and the intermediate flow collecting pipe (80) are provided at both ends of the first heat exchange unit (10), the both ends of the first heat exchange unit (10) being both ends along the axial direction of the first flow collecting pipe (20) and the second flow collecting pipe (30), and the second heat exchange unit (40) includes two heat exchange structures (45) provided to communicate with each other, 10. The heat exchanger according to claim 9, wherein two heat exchange structures (45) are provided at both ends of the first heat exchange section (10), one of which is connected to the connecting pipe (90) and the other of which is connected to the intermediate collecting pipe (80), so that the fluid entering through the inlet pipe segment (81) passes through the two heat exchange structures (45) and then is discharged from the outlet pipe segment (82).

18. The second heat exchange section (40) further includes a fourth flat tube (47), The fourth flat tube (47) has a fourth pipe segment (471), a fifth pipe segment (472), and a sixth pipe segment (473) connected in order, and the fourth pipe segment (471) and the sixth pipe segment (473) all extend along a vertical direction or along a direction forming a preset angle with respect to the vertical direction, the fourth pipe segment (471) is located at one end of the first heat exchange section (10) and is connected to the intermediate flow collecting pipe (80), the fifth pipe segment (472) is located between one end of the first heat exchange section (10) and the other end of the first heat exchange section (10), and the sixth pipe segment (473) is located at the other end of the first heat exchange section (10) and is connected to the connecting pipe (90), 18. The heat exchanger of claim 17, wherein the fourth flat tubes (47) are multiple, the multiple fourth flat tubes (47) are spaced apart along the extension direction of the intermediate flow collector tube (80), the multiple fourth pipe segments (471) surround one of the heat exchange structures (45), the multiple sixth pipe segments (473) surround the other of the heat exchange structures (45), and the one heat exchange structure (45) and the other heat exchange structure (45) are connected via the multiple fifth pipe segments (472).

19. There is an attachment area between the first heat exchange tube segment (111) and the second heat exchange tube segment (112), the attachment area being a triangular area, and at least a portion of the heat exchange structure (45) is provided in close contact with the first heat exchange tube segment (111) or the second heat exchange tube segment (112); the lengths of the fourth pipe segments (471) of the plurality of fourth flat tubes (47) along the extension direction of the intermediate collector pipe (80) first increase and then decrease so that the plurality of fourth pipe segments (471) surround and form a triangular or trapezoidal structure that fits the installation area; and / or 19. The heat exchanger of claim 18, wherein the lengths of the sixth pipe segments (473) of the plurality of fourth flat tubes (47) along the extension direction of the intermediate collector tube (80) first increase and then decrease so that the plurality of sixth pipe segments (473) surround and form a triangular or trapezoidal structure that fits the mounting area.

20. The fourth flat tube (47) has an integrally molded structure, The connection between the fourth pipe segment (471) and the fifth pipe segment (472) is an arcuate bent transition structure; and / or 20. The heat exchanger of claim 18, wherein the connection between the fifth pipe segment (472) and the sixth pipe segment (473) is an arcuate bend transition.

21. 21. The heat exchanger of claim 20, wherein the second heat exchange section (40) includes a third heat exchange flat tube (48), the third heat exchange flat tube (48) having a plurality of bent pipe segments connected in series, the heights of the plurality of bent pipe segments connected in series being initially gradually increasing or gradually decreasing so that the edges of the plurality of bent pipe segments connected in series surround and form a triangular structure that fits into the mounting area between the first heat exchange assembly (13) and the second heat exchange assembly (14).

22. The heat exchanger according to claim 21, wherein the third heat exchange flat tubes (48) are provided in a plurality of positions, and the third heat exchange flat tubes (48) are spaced apart along the height direction.

23. 23. The heat exchanger of claim 22, wherein the inlet ends of the plurality of third heat exchange flat tubes (48) are connected and the outlet ends of the plurality of third heat exchange flat tubes (48) are connected.

24. 21. The heat exchanger of claim 20, wherein the second heat exchange section (40) includes a plurality of third heat exchange flat tubes (48), the third heat exchange flat tubes (48) being spaced apart along the extension direction from the first heat exchange assembly (13) to the second heat exchange assembly (14), each of the third heat exchange flat tubes (48) having a plurality of bent tube segments connected in series, the heights of the bent tube segments of the third heat exchange flat tubes (48) being initially gradually increased or gradually decreased so that the edges of the third heat exchange flat tubes (48) surround and form a triangular structure that fits the mounting area between the first heat exchange assembly (13) and the second heat exchange assembly (14).

25. 25. The heat exchanger of claim 24, wherein the inlet ends of the third heat exchange flat tubes (48) are connected and the outlet ends of the third heat exchange flat tubes (48) are connected.

26. the second heat exchange section (40) further includes an inlet connecting pipe (491) and / or an outlet connecting pipe (492); the inlet connecting pipe (491) extends along an extension direction from the first heat exchange assembly (13) to the second heat exchange assembly (14), and the inlet ends of the plurality of third heat exchange flat tubes (48) are all connected to the inlet connecting pipe (491); 26. The heat exchanger of claim 25, wherein the outlet connecting pipe (492) extends along the extension direction from the first heat exchange assembly (13) to the second heat exchange assembly (14), and the outlet ends of the plurality of third heat exchange flat tubes (48) are all connected to the outlet connecting pipe (492).

27. ​​A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, The second heat exchange section (40) has a bent flat tube structure, and the bent flat tube structure has a heat exchange inlet section, a heat exchange outlet section, and a bent heat exchange flow path structure that communicates with both the heat exchange inlet section and the heat exchange outlet section, The folded flat tube structure includes a fifth flat tube (4110), A heat exchanger in which the fifth flat tube (4110) includes a plurality of fifth heat exchange tube segments (4111) spaced apart along the horizontal direction and communicating with each other, and all of the fifth heat exchange tube segments (4111) extend along the vertical direction.

28. A heat exchanger as described in claim 27, wherein the height of the plurality of fifth heat exchange tube segments (4111) first increases and then decreases, one end of the fifth flat tube (4110) forms the heat exchange inlet portion, and the other end of the fifth flat tube (4110) forms the heat exchange outlet portion.

29. A heat exchanger as described in claim 28, wherein the fifth flat tube (4110) is multiple, the multiple fifth flat tubes (4110) are spaced apart along the horizontal direction, the heat exchange inlet section includes multiple first heat exchange inlets of the fifth flat tubes (4110), the heat exchange outlet section includes multiple first heat exchange outlets of the fifth flat tubes (4110), and the heights of the multiple fifth heat exchange tube segments (4111) of the multiple fifth flat tubes (4110) first increase and then decrease.

30. A heat exchanger in which the plurality of first heat exchange inlets are spaced apart and the plurality of first heat exchange outlets are spaced apart, the heat exchanger further comprising a first connecting pipe (120) and / or a second connecting pipe (130); The plurality of first heat exchange inlets are all connected to the first connecting pipe (120), and the first connecting pipe (120) extends along a direction in which the plurality of first heat exchange inlets are spaced apart; 30. The heat exchanger of claim 29, wherein the plurality of first heat exchange outlets are all connected to the second connecting pipe (130), and the second connecting pipe (130) extends along a direction in which the plurality of first heat exchange outlets are spaced apart.

31. A heat exchanger as described in claim 27, wherein the height of the fifth heat exchange tube segments (4111) of the fifth flat tube (4110) first increases and then decreases, the fifth flat tube (4110) is multiple, and the multiple fifth flat tubes (4110) are spaced apart along the vertical direction.

32. The height of the fifth heat exchange tube segments (4111) of the fifth flat tube (4110) first increases and then decreases, and the folded flat tube structure further includes a sixth flat tube (4120); The heat exchanger of claim 27, wherein the sixth flat tube (4120) includes a plurality of sixth heat exchange tube segments (4121) spaced apart along a horizontal direction and connected to one another, the sixth heat exchange tube segments (4121) extending along a vertical direction, the heights of the sixth heat exchange tube segments (4121) being the same, and the fifth heat exchange tube segments (4111) being attached above the sixth heat exchange tube segments (4121).

33. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, The second heat exchange section (40) has a bent flat tube structure, and the bent flat tube structure has a heat exchange inlet section, a heat exchange outlet section, and a bent heat exchange flow path structure that communicates with both the heat exchange inlet section and the heat exchange outlet section, The folded flat tubular structure includes a plurality of first inclined segments (4131) and a plurality of second inclined segments (4141), A heat exchanger in which the plurality of first inclined segments (4131) are arranged in one-to-one correspondence with the plurality of second inclined segments (4141), and each of the first inclined segments (4131) and the corresponding second inclined segment (4141) are connected to form a triangular structure.

34. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, The second heat exchange section (40) has a bent flat tube structure, and the bent flat tube structure has a heat exchange inlet section, a heat exchange outlet section, and a bent heat exchange flow path structure that communicates with both the heat exchange inlet section and the heat exchange outlet section, The folded flat tube structure includes a seventh flat tube (4130) and an eighth flat tube (4140), A heat exchanger, wherein the seventh flat tube (4130) includes a plurality of third heat exchange tube segments spaced apart along the horizontal direction so as to communicate with each other, the eighth flat tube (4140) includes a plurality of fourth heat exchange tube segments spaced apart along the horizontal direction so as to communicate with each other, each of the third heat exchange tube segments includes a first inclined segment (4131), each of the fourth heat exchange tube segments includes a second inclined segment (4141), the plurality of first inclined segments (4131) are arranged in one-to-one correspondence with the plurality of second inclined segments (4141), and each of the first inclined segment (4131) and the corresponding second inclined segment (4141) abut to form a surrounding triangular structure.

35. A gas turbine engine comprising a first heat exchange section (10), a first flow collecting pipe (20) and a second flow collecting pipe (30), and a second heat exchange section (40), the first heat exchange section (10) includes a plurality of first flat tubes (11) spaced apart, the first flat tubes (11) including a first heat exchange tube segment (111) and a second heat exchange tube segment (112) connected to each other, the first heat exchange tube segment (111) and the second heat exchange tube segment (112) being arranged at a preset angle, or the first heat exchange section (10) includes a first heat exchange assembly (13) and a second heat exchange assembly (14) connected to each other, the first heat exchange assembly (13) including a plurality of first heat exchange flat tubes (131) spaced apart along a first preset direction, the second heat exchange assembly (14) including a plurality of second heat exchange flat tubes (141) spaced apart along a second preset direction, the first preset direction and the second preset direction being arranged at a preset angle; The first heat exchange tube segments (111) of the plurality of first flat tubes (11) are all connected to the first flow collecting tube (20), and the second heat exchange tube segments (112) of the plurality of first flat tubes (11) are all connected to the second flow collecting tube (30), or the plurality of first heat exchange flat tubes (131) are all connected to the first flow collecting tube (20), and the plurality of second heat exchange flat tubes (141) are all connected to the second flow collecting tube (30); The second heat exchange section (40) is provided at an end of the first heat exchange section (10), and the first heat exchange section (10) and the second heat exchange section (40) form an air passage surrounding the air passage, The second heat exchange section (40) has a bent flat tube structure, and the bent flat tube structure has a heat exchange inlet section, a heat exchange outlet section, and a bent heat exchange flow path structure that communicates with both the heat exchange inlet section and the heat exchange outlet section, The folded flat tube structure includes a ninth flat tube (4150), A heat exchanger, wherein the ninth flat tube (4150) includes a plurality of fifth heat exchange tube segments spaced apart along the vertical direction and connected to each other, each fifth heat exchange tube segment including a third inclined segment (4151) and a fourth inclined segment (4152) connected to each other, and the third inclined segment (4151) and the fourth inclined segment (4152) surroundingly form a triangular structure.

Images