Heat exchanger and heat pump system

Abstract

The present invention provides a heat exchanger and a heat pump system, wherein the heat exchanger comprises a first heat exchange segment, a second heat exchange segment and a plurality of connection components; the first heat exchange segment has a first interface, a second interface and a first heat exchange channel connecting the first interface and the second interface; the second heat exchange segment comprises a plurality of heat exchange components, each heat exchange component has a first port, a second port and a second heat exchange channel connecting the first port and the second port; the first ports of the plurality of second heat exchange channels are all connected to the third interface; the plurality of connection components are arranged in one-to-one correspondence with the plurality of heat exchange components; one end of each connection component is respectively connected to the second port of the corresponding heat exchange component, and the other end of each connection component is connected to the second interface. The heat exchanger of the present invention solves the problem of low heat exchange efficiency of the heat exchanger in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of heat exchange equipment, and in particular to a heat exchanger and a heat pump system. Background Art

[0002] Heat exchangers are widely used in heat pump equipment such as air conditioners. Improving the heat exchange efficiency of heat exchangers plays an important role in improving the energy efficiency of heat pumps.

[0003] When the existing heat exchanger is used as an evaporator, the refrigerant distribution inside it is still uneven, which makes some areas of the heat exchanger prone to "dry evaporation", thereby reducing the heat exchange capacity of the heat exchanger and affecting the heat exchange efficiency of the heat exchanger. Summary of the invention

[0004] The main purpose of the present invention is to provide a heat exchanger and a heat pump system to solve the problem of low heat exchange efficiency of the heat exchanger in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a heat exchanger is provided, comprising: a first heat exchange segment, the first heat exchange segment having a first interface, a second interface and a first heat exchange channel connecting the first interface and the second interface; a second heat exchange segment, the second heat exchange segment comprising a plurality of heat exchange components, each heat exchange component having a first port, a second port and a second heat exchange channel connecting the first port and the second port; the first ports of the plurality of second heat exchange channels are all connected to the third interface; a plurality of connecting components, the plurality of connecting components are arranged in a one-to-one correspondence with the plurality of heat exchange components; one end of each connecting component is respectively connected to the second port of the corresponding heat exchange component, and the other end of each connecting component is connected to the second interface.

[0006] Furthermore, the heat exchange component includes a plurality of second heat exchange tubes, and the tube cavities of the plurality of second heat exchange tubes constitute a second heat exchange channel; the connecting component includes a shunt pipe, the shunt pipe has an inlet and a plurality of outlets, the inlet of the shunt pipe is connected to the second interface, and the plurality of outlets of the shunt pipe are connected one-to-one with the first ends of the plurality of second heat exchange tubes of the corresponding heat exchange component; wherein the plurality of outlets of the shunt pipe are arranged in sequence and spaced apart along the extension direction of the shunt pipe.

[0007] Furthermore, the multiple second heat exchange tubes of the heat exchange assembly are all flat tubes; the connecting assembly includes multiple connecting tubes extending in the horizontal direction, the multiple connecting tubes are connected to the diversion pipe, and the tube wall of each connecting tube is provided with an opening extending along the axial direction thereof, and the multiple second heat exchange tubes are inserted into the openings of the multiple connecting tubes in a one-to-one correspondence.

[0008] Furthermore, both ends of the connecting pipe are closed, a through hole is provided on the pipe wall of the connecting pipe, and the connecting pipe is connected with the second interface through the through hole.

[0009] Furthermore, one end of the connecting pipe is closed, and the other end of the connecting pipe is connected to the second interface.

[0010] Furthermore, the first heat exchange segment includes: multiple first heat exchange tubes, the tube cavities of the multiple first heat exchange tubes constitute a first heat exchange channel; a first collecting pipe, the first ends of the multiple first heat exchange tubes are connected to the first collecting pipe, and the second interface is connected to the first collecting pipe; a second collecting pipe, the second ends of the multiple first heat exchange tubes are connected to the second collecting pipe, and the first interface is connected to the second collecting pipe; a third collecting pipe, the second ends of the second heat exchange tubes of the multiple heat exchange components are connected to the third collecting pipe; wherein the area of ​​the flow cross-section of the first collecting pipe, the area of ​​the flow cross-section of the second collecting pipe, and the area of ​​the flow cross-section of the third collecting pipe are all larger than the area of ​​the flow cross-section of the diverter pipe.

[0011] Furthermore, the second collecting pipe and the third collecting pipe are integrally arranged, and the inner cavity of the second collecting pipe and the inner cavity of the third collecting pipe are separated by a first partition plate.

[0012] Furthermore, the first collecting pipe and the second collecting pipe are both extended along the first direction, the multiple first heat exchange tubes are both extended along the second direction and the multiple first heat exchange tubes are spaced apart along the first direction; a second partition is provided in the first collecting pipe, and the second partition divides the tube cavity of the first collecting pipe into a first tube cavity and a second tube cavity spaced apart along the first direction; a third partition is provided in the second collecting pipe, and the third partition divides the tube cavity of the second collecting pipe into a third tube cavity and a fourth tube cavity spaced apart along the first direction; wherein, the first interface is connected with the fourth tube cavity, and the second interface is connected with the first tube cavity; along the first direction, the distance from the second partition to the first interface is greater than the distance from the third partition to the first interface.

[0013] Further, along the first direction, the number of first heat exchange tubes located on the side of the third partition away from the second partition is A, the number of first heat exchange tubes located between the second partition and the third partition is B, and the number of first heat exchange tubes located on the side of the second partition away from the third partition is C; wherein A<B<C.

[0014] According to another aspect of the present invention, a heat pump system is provided, which includes a compressor, a first heat exchanger, a second heat exchanger, a throttling device and a four-way valve; the first heat exchanger is the above-mentioned heat exchanger; wherein the third interface of the first heat exchanger, the first port of the second heat exchanger, the inlet of the compressor and the outlet of the compressor are respectively connected to the four interfaces of the four-way valve in a one-to-one correspondence; the first interface of the first heat exchanger is connected to the second port of the second heat exchanger through the throttling device.

[0015] The heat exchanger using the technical solution of the present invention includes a first heat exchange segment, a second heat exchange segment and a plurality of connection components; the first heat exchange segment has a first interface, a second interface and a first heat exchange channel connecting the first interface and the second interface; the second heat exchange segment includes a plurality of heat exchange components, each of which has a first port, a second port and a second heat exchange channel connecting the first port and the second port; the first ports of the plurality of second heat exchange channels are all connected to the third interface; the plurality of connection components are arranged one-to-one with the plurality of heat exchange components; one end of each connection component is respectively connected to the second port of the corresponding heat exchange component, and the other end of each connection component is connected to the second interface. In this way, after the refrigerant enters the first heat exchange segment from the first interface, heat exchange of the first process is carried out in the first heat exchange channel. At this time, the amount of liquid refrigerant is large, which can more fully cover various areas in the first channel, thereby ensuring the heat exchange effect of the first process. After the heat exchange of the first process is completed, the gas-liquid mixed refrigerant is divided through multiple connecting components and can be more evenly distributed to multiple heat exchange components of the second heat exchange segment for heat exchange of the second process, thereby ensuring the uniformity of the distribution of the refrigerant in the second heat exchange segment and ensuring the heat exchange effect of the second process. In this way, it can be ensured that the refrigerant can be evenly distributed in both the first heat exchange process and the second heat exchange process, avoiding the situation of "dry steaming" in a local area of ​​the heat exchanger, and solving the problem of low heat exchange efficiency of the heat exchanger in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram showing a first viewing angle of an embodiment of a heat exchanger according to the present invention is shown;

[0018] Figure 2 Shown according to Figure 1 An enlarged structural schematic diagram of a local area of ​​an embodiment of a heat exchanger;

[0019] Figure 3 Shown according to Figure 2 An enlarged structural schematic diagram of a first part of an embodiment of a heat exchanger in FIG.

[0020] Figure 4 Shown according to Figure 2 An enlarged structural schematic diagram of a second part of an embodiment of a heat exchanger in FIG.

[0021] Figure 5 A schematic structural diagram showing a second viewing angle of an embodiment of a heat exchanger according to the present invention is shown;

[0022] Figure 6A schematic structural diagram of a heat exchanger according to an embodiment of the present invention after heat exchange fins are removed from a second viewing angle is shown;

[0023] Figure 7 Shown according to Figure 6 An enlarged structural schematic diagram of a local area of ​​an embodiment of a heat exchanger;

[0024] Figure 8 A schematic structural diagram of a connection assembly according to a first embodiment of a heat exchanger according to the present invention is shown;

[0025] Fig. 9 A schematic cross-sectional view of the connecting pipe of the first embodiment of the heat exchanger according to the present invention is shown;

[0026] Fig.10 A schematic structural diagram of a connection assembly according to a second embodiment of a heat exchanger according to the present invention is shown;

[0027] Fig.11 A schematic cross-sectional view of the connecting pipe of a second embodiment of a heat exchanger according to the present invention is shown;

[0028] Fig.12 A schematic diagram showing the refrigerant flow process inside an embodiment of a heat exchanger according to the present invention is shown;

[0029] Fig.13 A schematic structural diagram of an embodiment of a heat pump system according to the present invention is shown.

[0030] The above drawings include the following reference numerals:

[0031] 1. First heat exchange section; 11. First heat exchange tube; 2. Second heat exchange section; 21. Heat exchange assembly; 211. Second heat exchange tube; 3. Connecting assembly; 31. Diverter tube; 32. Connecting tube; 321. Opening; 322. Through hole; 10. First interface; 20. Second interface; 30. Third interface; 40. First partition; 50. Second partition; 60. Third partition; 100. First header; 200. Second header; 300. Third header; 1000. Compressor; 2000. First heat exchanger; 3000. Second heat exchanger; 4000. Throttling device; 5000. Four-way valve. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] Please refer to Figures 1 to 12The present invention provides a heat exchanger, which includes: a first heat exchange segment 1, the first heat exchange segment 1 has a first interface 10, a second interface 20 and a first heat exchange channel connecting the first interface 10 and the second interface 20; a second heat exchange segment 2, the second heat exchange segment 2 includes a plurality of heat exchange components 21, each heat exchange component 21 has a first port, a second port and a second heat exchange channel connecting the first port and the second port; the first ports of the plurality of second heat exchange channels are all connected to the third interface 30; a plurality of connecting components 3, the plurality of connecting components 3 are arranged in a one-to-one correspondence with the plurality of heat exchange components 21; one end of each connecting component 3 is respectively connected to the second port of the corresponding heat exchange component 21, and the other end of each connecting component 3 is connected to the second interface 20.

[0034] The heat exchanger of the present invention comprises a first heat exchange segment 1, a second heat exchange segment 2 and a plurality of connection components 3; the first heat exchange segment 1 has a first interface 10, a second interface 20 and a first heat exchange channel connecting the first interface 10 and the second interface 20; the second heat exchange segment 2 comprises a plurality of heat exchange components 21, each heat exchange component 21 has a first port, a second port and a second heat exchange channel connecting the first port and the second port; the first ports of the plurality of second heat exchange channels are all connected to the third interface 30; the plurality of connection components 3 are arranged one-to-one with the plurality of heat exchange components 21; one end of each connection component 3 is respectively connected to the second port of the corresponding heat exchange component 21, and the other end of each connection component 3 is connected to the second interface 20. In this way, after the refrigerant enters the first heat exchange segment 1 from the first interface 10, heat exchange of the first process is performed in the first heat exchange channel. At this time, the amount of liquid refrigerant is large, which can more fully cover each area in the first channel, thereby ensuring the heat exchange effect of the first process. After the heat exchange of the first process is completed, the gas-liquid mixed refrigerant is divided through multiple connecting components 3 and can be more evenly distributed to multiple heat exchange components 21 of the second heat exchange segment 2 for heat exchange of the second process, thereby ensuring the uniformity of the distribution of the refrigerant in the second heat exchange segment 2 and ensuring the heat exchange effect of the second process. In this way, it can be ensured that the refrigerant can be evenly distributed in both the first heat exchange process and the second heat exchange process, avoiding the situation of "dry steaming" in a local area of ​​the heat exchanger, and solving the problem of low heat exchange efficiency of the heat exchanger in the prior art.

[0035] Specifically, the heat exchange component 21 includes a plurality of second heat exchange tubes 211, and the tube cavities of the plurality of second heat exchange tubes 211 constitute a second heat exchange channel; the connecting component 3 includes a diverter tube 31, the diverter tube 31 has an inlet and a plurality of outlets, the inlet of the diverter tube 31 is connected to the second interface 20, and the plurality of outlets of the diverter tube 31 are connected one-to-one with the first ends of the plurality of second heat exchange tubes 211 of the corresponding heat exchange component 21; wherein the plurality of outlets of the diverter tube 31 are arranged in sequence and spaced apart along the extension direction of the diverter tube 31.

[0036] In order to improve the uniformity of the refrigerant entering the plurality of second heat exchange tubes 211 , the distances from the inlet of the splitter tube 31 to the two ends of the splitter tube 31 are equal.

[0037] It should be noted that the multiple outlets of the flow divider 31 are connected to the multiple second heat exchange tubes 211 in a one-to-one correspondence, and the two can be directly connected or transitionally connected through other elements. For example, the flow divider 31 described below is indirectly connected to the multiple second heat exchange tubes 211 through multiple connecting tubes 32.

[0038] Specifically, the multiple second heat exchange tubes 211 of the heat exchange component 21 are all flat tubes; the connecting component 3 includes a plurality of connecting tubes 32 extending in the horizontal direction, and the multiple connecting tubes 32 are all connected to the diversion tube 31. The tube wall of each connecting tube 32 is provided with an opening 321 extending along its axial direction, and the multiple second heat exchange tubes 211 are one-to-one correspondingly inserted into the openings 321 of the multiple connecting tubes 32.

[0039] Since the connecting tube 32 is provided with an opening 321 extending along its axial direction, and the second heat exchange tube 211 is inserted into the opening 321, the refrigerant in the connecting tube 32 can be more evenly input into the flat tube, thereby improving the uniformity of the distribution of the refrigerant in the flat tube and improving the heat exchange effect of the second heat exchange section of the heat exchanger.

[0040] Specifically, both ends of the connecting pipe 32 are closed, a through hole 322 is provided on the pipe wall of the connecting pipe 32 , and the connecting pipe 32 is communicated with the second interface 20 through the through hole 322 .

[0041] Specifically, one end of the connecting pipe 32 is closed, and the other end of the connecting pipe 32 is communicated with the second interface 20 .

[0042] Specifically, the first heat exchange segment 1 includes: multiple first heat exchange tubes 11, the tube cavities of the multiple first heat exchange tubes 11 constitute a first heat exchange channel; a first header 100, the first ends of the multiple first heat exchange tubes 11 are all connected to the first header 100, and the second interface 20 is connected to the first header 100; a second header 200, the second ends of the multiple first heat exchange tubes 11 are all connected to the second header 200, and the first interface 10 is connected to the second header 200; a third header 300, the second ends of the second heat exchange tubes 211 of the multiple heat exchange components 21 are all connected to the third header 300; wherein the area of ​​the flow cross-section of the first header 100, the area of ​​the flow cross-section of the second header 200, and the area of ​​the flow cross-section of the third header 300 are all greater than the area of ​​the flow cross-section of the diverter pipe 31.

[0043] The area of ​​the flow cross section is the area of ​​the cross section perpendicular to the extension direction of the corresponding tube. By making the flow cross section area of ​​the shunt tube 31 smaller than the flow cross sections of the first header 100, the second header 200 and the third header 300, the flow velocity of the refrigerant in the shunt tube 31 can be increased, thereby improving the uniformity of the distribution of the refrigerant in each second heat exchange tube 211 and improving the heat exchange efficiency of the heat exchanger. In this embodiment, the first header 100, the second header 200, the third header 300 and the shunt tube 31 are all round tubes, and the diameters of the first header 100, the second header 200 and the third header 300 are all larger than the diameter of the shunt tube 31.

[0044] Specifically, the second header 200 and the third header 300 are integrally arranged, and the inner cavity of the second header 200 and the inner cavity of the third header 300 are separated by the first partition plate 40 .

[0045] Specifically, the first collecting pipe 100 and the second collecting pipe 200 are both extended along the first direction, the multiple first heat exchange tubes 11 are both extended along the second direction and the multiple first heat exchange tubes 11 are both spaced apart along the first direction; a second partition 50 is provided in the first collecting pipe 100, and the second partition 50 divides the tube cavity of the first collecting pipe 100 into a first tube cavity and a second tube cavity spaced apart along the first direction; a third partition 60 is provided in the second collecting pipe 200, and the third partition 60 divides the tube cavity of the second collecting pipe 200 into a third tube cavity and a fourth tube cavity spaced apart along the first direction; wherein, the first interface 10 is connected with the fourth tube cavity, and the second interface 20 is connected with the first tube cavity; along the first direction, the distance from the second partition 50 to the first interface 10 is greater than the distance from the third partition 60 to the first interface 10.

[0046] In this way, the first heat exchange segment 1 is divided into three processes. Specifically, the refrigerant flows from the first interface 10 into the fourth tube cavity, passes through multiple first heat exchange tubes 11 and flows to the second tube cavity, thereby completing the first process; then passes through multiple first heat exchange tubes 11 and flows to the third tube cavity, thereby completing the second process; then, the refrigerant in the third tube cavity passes through multiple first heat exchange tubes 11 and flows to the first tube cavity, thereby realizing the third process. By adopting the above configuration, the refrigerant can fully exchange heat through the three processes in the first heat exchange segment 1, thereby improving the heat exchange efficiency of the first heat exchange segment 1 of the heat exchanger.

[0047] Specifically, along the first direction, the number of the first heat exchange tubes 11 located on the side of the third partition 60 away from the second partition 50 is A, the number of the first heat exchange tubes 11 located between the second partition 50 and the third partition 60 is B, and the number of the first heat exchange tubes 11 located on the side of the second partition 50 away from the third partition 60 is C; wherein A<B<C.

[0048] In this way, from the first process to the third process, the number of the first heat exchange tubes 11 gradually increases, and the heat exchange space can be gradually increased as the refrigerant vaporizes, thereby ensuring sufficient heat exchange between the refrigerant and the external medium and improving the heat exchange efficiency of the first heat exchange segment 1.

[0049] In addition, the heat exchanger includes heat exchange fins, which are connected to the plurality of first heat exchange tubes 11 and the plurality of second heat exchange tubes 211, thereby improving the heat exchange efficiency between the first heat exchange tubes 11 and the second heat exchange tubes 211 and the external medium.

[0050] Also, please refer to Fig.13 The present invention also provides a heat pump system, which includes a compressor 1000, a first heat exchanger 2000, a second heat exchanger 3000, a throttling device 4000 and a four-way valve 5000; the first heat exchanger 2000 is the above-mentioned heat exchanger; wherein the third interface 30 of the first heat exchanger 2000, the first port of the second heat exchanger 3000, the inlet of the compressor 1000 and the outlet of the compressor 1000 are respectively connected to the four interfaces of the four-way valve 5000 in a one-to-one correspondence; the first interface 10 of the first heat exchanger 2000 is connected to the second port of the second heat exchanger 3000 through the throttling device 4000.

[0051] When the first heat exchanger 2000 acts as a condenser, port a of the four-way valve 5000 is connected to port b, and port c is connected to port d. The refrigerant discharged from the compressor 1000 passes through the four-way valve 5000, and then enters the first heat exchanger 2000 for condensation and heat release, and then enters the throttling device 4000 for throttling, and then enters the second heat exchanger 3000 for evaporation and heat absorption, and then passes through the four-way valve 5000 back to the compressor 1000 to complete the cycle.

[0052] When the first heat exchanger 2000 is used as an evaporator, the port a and the port c of the four-way valve 5000 are connected, and the port b and the port d are connected. The refrigerant discharged from the compressor 1000 passes through the four-way valve 5000 into the second heat exchanger 3000 for condensation and heat release, then enters the throttling device 4000 for throttling, and then enters the first heat exchanger 2000 for evaporation and heat absorption, and then passes through the four-way valve 5000 back to the compressor 1000 to complete the cycle.

[0053] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0054] The heat exchanger of the present invention comprises a first heat exchange segment 1, a second heat exchange segment 2 and a plurality of connection components 3; the first heat exchange segment 1 has a first interface 10, a second interface 20 and a first heat exchange channel connecting the first interface 10 and the second interface 20; the second heat exchange segment 2 comprises a plurality of heat exchange components 21, each heat exchange component 21 has a first port, a second port and a second heat exchange channel connecting the first port and the second port; the first ports of the plurality of second heat exchange channels are all connected to the third interface 30; the plurality of connection components 3 are arranged one-to-one with the plurality of heat exchange components 21; one end of each connection component 3 is respectively connected to the second port of the corresponding heat exchange component 21, and the other end of each connection component 3 is connected to the second interface 20. In this way, after the refrigerant enters the first heat exchange segment 1 from the first interface 10, heat exchange of the first process is performed in the first heat exchange channel. At this time, the amount of liquid refrigerant is large, which can more fully cover each area in the first channel, thereby ensuring the heat exchange effect of the first process. After the heat exchange of the first process is completed, the gas-liquid mixed refrigerant is divided through multiple connecting components 3 and can be more evenly distributed to multiple heat exchange components 21 of the second heat exchange segment 2 for heat exchange of the second process, thereby ensuring the uniformity of the distribution of the refrigerant in the second heat exchange segment 2 and ensuring the heat exchange effect of the second process. In this way, it can be ensured that the refrigerant can be evenly distributed in both the first heat exchange process and the second heat exchange process, avoiding the situation of "dry steaming" in a local area of ​​the heat exchanger, and solving the problem of low heat exchange efficiency of the heat exchanger in the prior art.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat exchanger, characterized in that: include: A first heat exchange segment (1), the first heat exchange segment (1) having a first interface (10), a second interface (20), and a first heat exchange channel connecting the first interface (10) and the second interface (20); a second heat exchange section (2), the second heat exchange section (2) comprising a plurality of heat exchange components (21), each of the heat exchange components (21) having a first port, a second port and a second heat exchange channel connecting the first port and the second port; the first ports of the plurality of second heat exchange channels are all in communication with a third interface (30); A plurality of connection components (3), wherein the plurality of connection components (3) are arranged in one-to-one correspondence with the plurality of heat exchange components (21); one end of each of the connection components (3) is respectively in communication with the second port of the corresponding heat exchange component (21), and the other end of each of the connection components (3) is in communication with the second interface (20); The heat exchange component (21) comprises a plurality of second heat exchange tubes (211), the tube lumens of the plurality of second heat exchange tubes (211) forming the second heat exchange channel; the connection component (3) comprises a shunt tube (31), the shunt tube (31) having an inlet and a plurality of outlets, the inlet of the shunt tube (31) being in communication with the second interface (20), and the plurality of outlets of the shunt tube (31) being in communication with the first ends of the plurality of second heat exchange tubes (211) of the corresponding heat exchange component (21) in a one-to-one correspondence; The first heat exchange section (1) comprises: a plurality of first heat exchange tubes (11), the tube lumens of the plurality of first heat exchange tubes (11) forming the first heat exchange channel; a first header (100), the first ends of the plurality of first heat exchange tubes (11) are all in communication with the first header (100), and the second interface (20) is in communication with the first header (100); a second header (200), the second ends of the plurality of first heat exchange tubes (11) are all in communication with the second header (200), and the first interface (10) is in communication with the second header (200); a third header (300), the second ends of the plurality of second heat exchange tubes (211) of the heat exchange components (21) are all in communication with the third header (300); The flow cross-section area of ​​the first header (100), the flow cross-section area of ​​the second header (200), and the flow cross-section area of ​​the third header (300) are all greater than the flow cross-section area of ​​the diverter tube (31).

2. The heat exchanger according to claim 1, characterized in that: The plurality of outlets of the diverter pipe (31) are arranged in sequence and at intervals along the extension direction of the diverter pipe (31).

3. The heat exchanger according to claim 2, characterized in that: The plurality of second heat exchange tubes (211) of the heat exchange assembly (21) are all flat tubes; the connection assembly (3) comprises a plurality of connection tubes (32) extending in a horizontal direction, the plurality of connection tubes (32) are all connected to the flow dividing tube (31), the tube wall of each connection tube (32) is provided with an opening (321) extending in an axial direction thereof, and the plurality of second heat exchange tubes (211) are passed through the openings (321) of the plurality of connection tubes (32) in a one-to-one correspondence.

4. The heat exchanger according to claim 3, characterized in that Both ends of the connecting tube (32) are closed, a through hole (322) is provided on the tube wall of the connecting tube (32), and the connecting tube (32) is connected to the second interface (20) through the through hole (322).

5. The heat exchanger according to claim 3, characterized in that: One end of the connecting tube (32) is closed, and the other end of the connecting tube (32) is in communication with the second interface (20).

6. The heat exchanger according to any one of claims 2 to 5, characterized in that: The second header (200) and the third header (300) are arranged integrally, and the inner cavity of the second header (200) and the inner cavity of the third header (300) are separated by a first partition plate (40).

7. The heat exchanger according to any one of claims 2 to 5, characterized in that: The first header (100) and the second header (200) are both extended along a first direction, the plurality of first heat exchange tubes (11) are both extended along a second direction and the plurality of first heat exchange tubes (11) are both spaced apart along the first direction; a second partition (50) is provided in the first header (100), the second partition (50) divides the tube cavity of the first header (100) into a first tube cavity and a second tube cavity spaced apart along the first direction; a third partition (60) is provided in the second header (200), the third partition (60) divides the tube cavity of the second header (200) into a third tube cavity and a fourth tube cavity spaced apart along the first direction; The first interface (10) is connected to the fourth lumen, and the second interface (20) is connected to the first lumen; along the first direction, the distance from the second partition (50) to the first interface (10) is greater than the distance from the third partition (60) to the first interface (10).

8. The heat exchanger according to claim 7, characterized in that Along the first direction, the number of the first heat exchange tubes (11) located on the side of the third partition plate (60) away from the second partition plate (50) is A, the number of the first heat exchange tubes (11) located between the second partition plate (50) and the third partition plate (60) is B, and the number of the first heat exchange tubes (11) located on the side of the second partition plate (50) away from the third partition plate (60) is C; Among them, A<B<C.

9. A heat pump system, characterized in that: The heat pump system comprises a compressor (1000), a first heat exchanger (2000), a second heat exchanger (3000), a throttling device (4000) and a four-way valve (5000); the first heat exchanger (2000) is the heat exchanger according to any one of claims 1 to 8; The third interface (30) of the first heat exchanger (2000), the first port of the second heat exchanger (3000), the inlet of the compressor (1000), and the outlet of the compressor (1000) are respectively connected to the four interfaces of the four-way valve (5000) in a one-to-one correspondence; the first interface (10) of the first heat exchanger (2000) is connected to the second port of the second heat exchanger (3000) via the throttling device (4000).

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