Current collector assembly, heat exchanger assembly, air conditioning system and air conditioner

Abstract

The utility model discloses a kind of current collection assembly, heat exchanger assembly, air conditioning system and air conditioner, current collection assembly includes: main pipe, main pipe has third port;Branch pipe, branch pipe is multiple, one end of branch pipe is connected with main pipe, the inside diameter of main pipe is greater than or equal to the inside diameter of branch pipe, the ratio of the inside diameter of main pipe and the inside diameter of branch pipe is 1:1-9:5;And / or the outside diameter of main pipe is greater than or equal to the outside diameter of branch pipe, the ratio of the outside diameter of main pipe and the outside diameter of branch pipe is 1:1-9:5 and / or, the outside diameter of main pipe is 6.5mm-12.8mm, the outside diameter of the outside diameter of branch pipe is 4.5mm-7.5mm.According to the current collection assembly of the utility model, under the condition that the inside diameter of branch pipe is kept unchanged, i.e. under the condition that the inside diameter of heat exchange pipe is kept unchanged, on the one hand, the inside diameter of main pipe is reduced, so as to reduce the material, weight and cost of main pipe, which is conducive to the economy and light weight of current collection assembly, thereby conducive to the economy and light weight of heat exchanger assembly, on the other hand, the heat exchange efficiency of heat exchanger assembly is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and in particular to a manifold assembly, a heat exchanger assembly, an air conditioning system, and an air conditioner. Background Technology

[0002] When existing heat exchanger assemblies are used as condensers, the manifold of the heat exchanger assembly is connected to the compressor's exhaust port through a reversing valve. Therefore, the pipe diameter of the manifold needs to be adapted to the compressor's displacement or the air conditioner's power. Consequently, the range of pipe diameters that can be selected for the manifold is relatively small, which is not conducive to adapting the manifold to air conditioners of different power ranges or compressors of different displacements. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a manifold assembly that, regardless of whether the heat exchanger assembly is used as an evaporator or a condenser, is not directly connected to the compressor's exhaust port, thus allowing for a wider range of pipe diameters to be selected for the manifold assembly.

[0004] This utility model also proposes a heat exchanger assembly, including the above-mentioned manifold assembly.

[0005] This utility model also proposes an air conditioning system, including the heat exchanger assembly described above.

[0006] This utility model also proposes an air conditioner, including the above-mentioned air conditioning system.

[0007] A manifold assembly according to an embodiment of the present invention is used in a heat exchanger assembly, comprising: a main pipe having a third port; multiple branch pipes, one end of which is connected to the main pipe; the inner diameter of the main pipe being greater than or equal to the inner diameter of the branch pipes, and the ratio of the inner diameter of the main pipe to the inner diameter of the branch pipes being 1:1-9:5; and / or the outer diameter of the main pipe being greater than or equal to the outer diameter of the branch pipes, and the ratio of the outer diameter of the main pipe to the outer diameter of the branch pipes being 1:1-9:5; and / or the outer diameter of the main pipe being 6.5mm-12mm. The outer diameter of the branch pipe is 4.5mm-7.5mm. When the heat exchanger assembly is used as an evaporator, the refrigerant that has undergone heat exchange through the heat exchanger assembly flows into the main pipe through multiple branch pipes and flows out of the heat exchanger assembly through the third port. When the heat exchanger assembly is used as a condenser, a portion of the refrigerant that has undergone heat exchange through the heat exchanger assembly flows into the main pipe through a portion of multiple branch pipes and flows from the main pipe through another portion of the branch pipes to another portion of the heat exchanger assembly, where the third port is closed.

[0008] According to the embodiments of this utility model, regardless of whether the heat exchanger assembly is an evaporator or a condenser, the manifold assembly is not directly connected to the exhaust port of the compressor. Therefore, the manifold assembly can select a large range of pipe diameters, which is convenient for adapting to air conditioners of different power ranges or compressors of different displacements.

[0009] In some embodiments of this utility model, the branch pipe is connected to the main pipe via a second tee pipe, wherein the inner diameter of the second tee pipe is greater than or equal to the outer diameter of the main pipe, and / or the ratio of the inner diameter of the main pipe to the inner diameter of the branch pipe is 1:1-9:7; and / or the ratio of the outer diameter of the main pipe to the outer diameter of the branch pipe is 1:1-9:7; and / or the outer diameter of the main pipe is 6.5mm-9.8mm, and the outer diameter of the branch pipe is 4.5mm-7.5mm.

[0010] In some embodiments of this utility model, the current collection assembly further includes a manifold, one end of which is connected to the main pipe and the other end of which is connected to a plurality of branch pipes.

[0011] In some embodiments of this utility model, the plurality of branch pipes include at least one third branch pipe and at least one fourth branch pipe, the third branch pipe and the fourth branch pipe being arranged at intervals along the length direction of the main pipe, the manifold assembly having a first state and a second state. In the first state, refrigerant enters the main pipe from the third branch pipe and flows out from the fourth branch pipe, and the third port is closed. In the second state, refrigerant enters the main pipe from the third branch pipe and the fourth branch pipe and flows out from the third port.

[0012] In some embodiments of this utility model, on a projection plane perpendicular to the axis of the main pipe, the third branch pipe and the fourth branch pipe are spaced apart or at an angle.

[0013] In some embodiments of this utility model, one end of the main pipe along its length is open to form the third port, or the third port is located on the peripheral wall of the main pipe, and the third port is connected to an extension pipe.

[0014] In some embodiments of this utility model, the extension tube is U-shaped or inverted U-shaped.

[0015] A heat exchanger assembly according to an embodiment of the present invention includes: a heat exchanger body having heat exchange tubes, wherein a plurality of heat exchange tubes form at least one first flow path and at least one second flow path; a flow collection assembly, wherein the plurality of branch pipes include at least one third branch pipe and at least one fourth branch pipe, wherein the third branch pipe is connected to the first flow path and the fourth branch pipe is connected to the second flow path; and a flow distribution assembly including a body portion and a flow-blocking component, wherein the body portion has a first port, a second port, a first connecting hole, and a second connecting hole, wherein the first connecting hole is connected to at least one end of the first flow path away from the third branch pipe, and the second connecting hole is connected to at least one end of the second flow path away from the fourth branch pipe, and the flow-blocking component is disposed on the body portion, wherein along the length direction of the body portion, the first port and the first connecting hole are located on the same side of the flow-blocking component, the second port and the second connecting hole are located on the same side of the flow-blocking component, and the first port and the second port are located on opposite sides of the flow-blocking component, and the flow-blocking component only allows refrigerant to flow from the second port side to the first connecting hole side.

[0016] According to the embodiments of the present invention, regardless of whether the heat exchanger assembly is an evaporator or a condenser, the manifold assembly is not directly connected to the exhaust port of the compressor. Therefore, the manifold assembly can be selected with a large range of pipe diameters, which is convenient for adapting to air conditioners of different power ranges or compressors of different displacements.

[0017] In some embodiments of this utility model, the main body includes a manifold, a first manifold and a second manifold, the first port and the first connecting hole are disposed on the first manifold, the second port and the second connecting hole are disposed on the second manifold, the first manifold and the second manifold are integral parts, and the flow-blocking component is disposed inside the first manifold or the second manifold; or the first manifold and the second manifold are separate parts, and the flow-blocking component is connected between the first manifold and the second manifold.

[0018] In some embodiments of this utility model, the inner diameter of the first manifold is less than or equal to the inner diameter of the second manifold.

[0019] In some embodiments of this utility model, the first connecting hole is one or a plurality of holes spaced apart along the length direction of the first manifold; and / or, the second connecting hole is one or a plurality of holes spaced apart along the length direction of the second manifold.

[0020] In some embodiments of this utility model, the main body includes a connecting pipe and a distributor, the flow-blocking component is disposed on the connecting pipe, the second port and the second connecting hole are connected to the connecting pipe, at least one of the second port and the second connecting hole is connected to one end of the connecting pipe, the distributor has a main interface and a plurality of distributing holes, the main interface is connected to the other end of the connecting pipe, and at least some of the distributing holes are the first connecting holes.

[0021] In some embodiments of this utility model, the heat exchanger assembly further includes: a first branch pipe, wherein the first branch pipe is connected between the first connecting hole and the first flow path; and / or, a second branch pipe, wherein the second connecting hole and the second flow path are connected between the second branch pipe and the second flow path.

[0022] In some embodiments of this utility model, the inner diameter of the second branch pipe is less than or equal to the inner diameter of the first branch pipe; and / or the area of ​​the second connecting hole is less than the area of ​​the first connecting hole.

[0023] In some embodiments of this utility model, the first port is formed by opening one end of the main body located on the side of the flow-blocking member away from the second port in the longitudinal direction; or the first port is provided on the peripheral wall of the main body.

[0024] In some embodiments of this utility model, the heat exchanger assembly further includes an air inlet pipe, one end of which is connected to the first port.

[0025] In some embodiments of this utility model, the air intake pipe is U-shaped or inverted U-shaped.

[0026] In some embodiments of this utility model, one end of the main body located on the side of the flow-blocking member away from the first port is open to form the second port; or, the second port is provided on the peripheral wall of the main body.

[0027] In some embodiments of this utility model, the heat exchanger assembly further includes: an inlet and outlet pipe, one end of which is connected to the second port.

[0028] In some embodiments of this utility model, the flow-blocking component is a one-way valve, a solenoid valve, or a baffle.

[0029] In some embodiments of this utility model, both the first flow path and the second flow path include multiple rows of heat exchange tubes. The heat exchange tubes of the first flow path connected to the first connecting hole and the heat exchange tubes of the second flow path connected to the second connecting hole are located on opposite sides of the thickness direction of the heat exchanger body or in different rows.

[0030] In some embodiments of this utility model, the heat exchange tubes of the first flow path connected to the first connecting hole are located in a row on the leeward side of the heat exchanger body, and the heat exchange tubes of the second flow path connected to the second connecting hole are located in a row on the windward side of the heat exchanger body.

[0031] In some embodiments of this utility model, the heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. Both the first flow path and the second flow path include multiple rows of the heat exchange tubes. The heat exchange tubes of the first flow path connected to the third branch pipe and the heat exchange tubes of the second flow path connected to the fourth branch pipe are located on opposite sides of the thickness direction of the heat exchanger body or in different rows.

[0032] In some embodiments of this utility model, the heat exchange tubes of the first flow path connected to the third branch pipe are located in a row on the windward side of the heat exchanger body, and the heat exchange tubes of the second flow path connected to the fourth branch pipe are located in a row on the leeward side of the heat exchanger body.

[0033] In some embodiments of this utility model, the heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. The first flow path includes a row of windward heat exchange tubes located on the windward side of the heat exchanger body and a row of leeward heat exchange tubes located on the leeward side of the heat exchanger body. When the heat exchanger assembly functions as a condenser and as an evaporator, the refrigerant flowing into the first flow path first flows through the leeward heat exchange tubes and then through the windward heat exchange tubes; and / or, the heat exchange tubes are arranged along the thickness direction of the heat exchanger body. The heat exchanger assembly consists of multiple rows arranged along its thickness direction. The second flow path includes a row of air-facing heat exchange tubes on the air-facing side of the heat exchanger assembly and a row of leeward heat exchange tubes on the leeward side of the heat exchanger assembly. When the heat exchanger assembly functions as an evaporator, the refrigerant flowing into the second flow path first flows through the air-facing heat exchange tubes and then through the leeward heat exchange tubes. When the heat exchanger assembly functions as a condenser, the refrigerant flowing into the second flow path first flows through the leeward heat exchange tubes and then through the air-facing heat exchange tubes.

[0034] In some embodiments of this utility model, the flow collection assembly and the flow splitting assembly are located on the same side of the length direction of the heat exchanger body.

[0035] In some embodiments of this utility model, when the heat exchanger assembly functions as an evaporator, the refrigerant flows into the heat exchanger assembly from the second port, and after heat exchange through the first and second connecting holes, flows out of the heat exchanger assembly from the third port after passing through the branch pipe and the main pipe in sequence. The flow-blocking component is open, and the first port is closed. When the heat exchanger assembly functions as a condenser, the refrigerant flows into part of the heat exchanger assembly from the first port through the first connecting hole, and after heat exchange, flows into another part of the heat exchanger assembly from part of the branch pipe, the main pipe, and another part of the branch pipe in sequence. It then flows out of the heat exchanger assembly from the second connecting hole and the second port in sequence. Both the flow-blocking component and the third port are closed.

[0036] In some embodiments of this utility model, there are multiple first connecting holes. When the heat exchanger assembly is used as an evaporator and when the heat exchanger assembly is used as a condenser, the multiple first connecting holes are used to distribute the refrigerant; and / or, the multiple first connecting holes are located above or diagonally above the flow-blocking component, and the multiple first connecting holes face horizontally, upward or diagonally upward.

[0037] In some embodiments of this utility model, the first flow path is located above the second flow path; and / or, the air volume or average wind speed flowing through the first flow path is greater than the air volume or average wind speed flowing through the second flow path.

[0038] An air conditioning system according to an embodiment of the present invention includes: a compressor having an exhaust port and a return port; an indoor heat exchanger; the aforementioned heat exchanger assembly, one end of the indoor heat exchanger being connected to a second port; and a reversing assembly having a first port, a second port, a third port, a fourth port, and a fifth port, wherein the first port is connected to the exhaust port, the third port is connected to the return port, the second port is connected to the other end of the indoor heat exchanger, the fourth port is connected to the third port, and the fifth port is connected to the first port; the first port is connected to the fifth port, and the second port is connected to the third port; or the first port is connected to the second port, and the third port is connected to the fourth port. The reversing assembly has a first switching state and a second switching state; when the reversing assembly is in the first switching state, the first port is connected to the fifth port, the second port is connected to the third port, and the fourth port is closed; when the reversing assembly is in the second switching state, the first port is connected to the second port, the third port is connected to the fourth port, and the fifth port is closed.

[0039] According to the air conditioning system of this utility model embodiment, regardless of whether the heat exchanger assembly is used as an evaporator or a condenser, the manifold assembly is not directly connected to the exhaust port of the compressor. Therefore, the manifold assembly can be selected with a large range of pipe diameters, which is convenient for adapting to air conditioners of different power ranges or compressors of different displacements.

[0040] The air conditioner according to an embodiment of the present invention includes the air conditioning system described above.

[0041] According to the embodiment of the present utility model, the air conditioner is equipped with the above-mentioned air conditioning system, heat exchanger assembly, and manifold assembly. The main pipe has a third port; there are multiple branch pipes, one end of which is connected to the main pipe. The inner diameter of the main pipe is greater than or equal to the inner diameter of the branch pipe, or the outer diameter of the main pipe is greater than or equal to the outer diameter of the branch pipe. On the one hand, the inner diameter of the main pipe is reduced, thereby reducing the material, weight and cost of the main pipe, which is beneficial to the economy and lightweight of the manifold assembly, and thus beneficial to the economy and lightweight of the heat exchanger assembly. On the other hand, the heat exchange efficiency of the heat exchanger assembly is guaranteed.

[0042] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0043] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0044] Figure 1 This is a perspective view of the current collection component according to an embodiment of the present utility model;

[0045] Figure 2 This is a top view of the current collection component according to an embodiment of the present utility model;

[0046] Figure 3 This is a schematic diagram of the structure of a heat exchanger assembly according to an embodiment of the present utility model;

[0047] Figure 4 This is a structural schematic diagram of a heat exchanger assembly according to an embodiment of the present utility model from another perspective;

[0048] Figure 5 This is a perspective view of the flow distribution component of the heat exchanger assembly according to an embodiment of the present utility model;

[0049] Figure 6 This is a flow path diagram of a heat exchanger assembly according to an embodiment of the present utility model;

[0050] Figure 7 This is a structural schematic diagram of an air conditioning system according to an embodiment of the present utility model, wherein the air conditioning system is in cooling mode;

[0051] Figure 8 This is a structural schematic diagram of an air conditioning system according to an embodiment of the present utility model, wherein the air conditioning system is in heating mode;

[0052] Figure 9 A schematic diagram of the structure of the shunt component according to an embodiment of the present invention.

[0053] Figure label:

[0054] 100. Distributor components;

[0055] 1. Body; 11. First port; 12. Second port; 13. First connecting hole; 14. Second connecting hole; 15. First manifold; 16. Second manifold;

[0056] 2. Flow-blocking components;

[0057] 31. First branch pipe; 32. Second branch pipe; 33. Inlet pipe; 34. Inlet / outlet pipe;

[0058] 200. Heat exchanger assembly;

[0059] 4. Heat exchanger body; 41. Heat exchange tube; 42. First flow path; 43. Second flow path; 44. Leeward side heat exchange tube; 45. Windward side heat exchange tube;

[0060] 5. Current collector assembly; 51. Third port; 52. Main pipe; 53. Branch pipe; 531. Third branch pipe; 532. Fourth branch pipe; 54. Combination pipe; 55. Extension pipe;

[0061] 300. Air conditioning system;

[0062] 61. Compressor; 611. Exhaust port; 612. Return port; 62. Indoor heat exchanger; 63. Reversing assembly; 631. First port; 632. Second port; 633. Third port; 634. Fourth port; 635. Fifth port; 636. Five-way valve; 637. Pilot valve; 64. Throttling device. Detailed Implementation

[0063] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0064] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0065] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0066] The following is for reference. Figures 1-2 The current collection component 5 according to an embodiment of the present utility model is described.

[0067] like Figure 1 and Figure 2 As shown, the current collection assembly 5 according to an embodiment of the present invention includes: a main pipe 52 and a branch pipe 53.

[0068] Specifically, refer to Figure 1 and Figure 2The main pipe 52 is a flute-shaped pipe with a third port 51. Multiple branch pipes 53 are present, one end of which is connected to the main pipe 52. The inner diameter of the main pipe 52 is greater than or equal to the inner diameter of the branch pipe 53. When the heat exchanger assembly 200 functions as an evaporator, the refrigerant that has undergone heat exchange in the heat exchanger assembly 200 flows into the main pipe 52 through multiple branch pipes 53 and exits the heat exchanger assembly 200 from the main pipe 52 through the third port 51. When the heat exchanger assembly 200 functions as a condenser, a portion of the refrigerant that has undergone heat exchange in the heat exchanger assembly 200 flows into the main pipe 52 through a portion of the multiple branch pipes 53, and then flows from the main pipe 52 through another portion of the branch pipes 53 to another portion of the heat exchanger assembly 200, with the third port 51 closed. In this embodiment, the third port 51 is closed by a valve in the air conditioner, for example, by a five-way valve 636. It should be noted that in the prior art, when the heat exchanger assembly is used as a condenser, the main pipe is connected to the compressor, so the size of the main pipe needs to match the compressor's displacement or the air conditioner's power, thus the range of selectable outer diameters of the main pipe is relatively small.

[0069] In this application, regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser, the manifold 5 is not directly connected to the exhaust port 611 of the compressor 61. Therefore, the manifold 5 can be selected with a large range of pipe diameters, which is convenient for adapting to compressors 61 of different power ranges or air conditioners or compressors 61 of different displacements.

[0070] There are multiple branch pipes 53, for example in Figure 1 In the example shown, there are 4 branch pipes 53, but the present invention is not limited to this. The number of branch pipes 53 can also be other numbers, such as 2, 3, 5 or 6.

[0071] Optionally, the ratio of the inner diameter of the main pipe 52 to the inner diameter of the branch pipe 53 is 1:1 to 9:5. For example, the ratio of the inner diameter of the main pipe 52 to the inner diameter of the branch pipe 53 can be 1:1, 9:8, 9:7, 7:5, 12:7, or 9:5.

[0072] In some embodiments of this utility model, regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser, the manifold 5 is not directly connected to the exhaust port 611 of the compressor 61. Therefore, the manifold 5 can be selected with a large range of pipe diameters, which is convenient for adapting to compressors 61 of different power ranges or air conditioners or compressors 61 of different displacements.

[0073] Furthermore, the ratio of the inner diameter of the main pipe 52 to the inner diameter of the branch pipe 53 is 1:1 to 9:7. For example, the ratio can be 1:1, 9:8, or 9:7, which reduces the inner diameter of the main pipe 52, thereby reducing the material used, weight, and cost of the main pipe 52. This is beneficial to the economy and lightweight design of the manifold assembly 5, and consequently, the economy and lightweight design of the heat exchanger assembly 200. Regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser, the manifold assembly 5 is not directly connected to the exhaust port 611 of the compressor 61, and the dimensions of both the main pipe 52 and the branch pipe 53 can be relatively small.

[0074] Optionally, the ratio of the outer diameter of the main pipe 52 to the outer diameter of the branch pipe 53 is 1:1 to 9:5. For example, the ratio of the outer diameter of the main pipe 52 to the outer diameter of the branch pipe 53 is 1:1, 9:8, 9:7, 7:5, 12:7, or 9:5. Regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser, the manifold 5 is not directly connected to the exhaust port 611 of the compressor 61. Therefore, the manifold 5 can be selected with a wide range of pipe diameters, making it easy to adapt to compressors 61 of different power ranges or air conditioners or compressors 61 of different displacements.

[0075] Furthermore, the ratio of the outer diameter of the main pipe 52 to the outer diameter of the branch pipe 53 is 1:1 to 9:7. For example, the ratio can be 1:1, 9:8, or 9:7. Both the main pipe 52 and the branch pipe 53 can be selected with relatively small diameters, thereby reducing the material usage, weight, and cost of the main pipe 52. This is beneficial to the economy and lightweight design of the manifold 5, which in turn benefits the economy and lightweight design of the heat exchanger assembly 200. On the other hand, it ensures the heat exchange efficiency of the heat exchanger assembly 200. Regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser, the manifold 5 is not directly connected to the exhaust port 611 of the compressor 61, and the dimensions of both the main pipe 52 and the branch pipe 53 can be relatively small.

[0076] The outer diameter of the main pipe 52 is 6.5mm-12.8mm, for example, the outer diameter of the main pipe 52 can be 6.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm or 12.8mm. The outer diameter of the branch pipe 53 is 4.5mm-7.5mm, for example, the outer diameter of the branch pipe 53 can be 4.5mm, 5mm, 6mm, 7mm or 7.5mm. Regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser, the manifold 5 is not directly connected to the exhaust port 611 of the compressor 61. Therefore, the manifold 5 can have a wide range of pipe diameters, which is convenient for adapting to compressors 61 of different power ranges or air conditioners or compressors 61 of different displacements.

[0077] Furthermore, the outer diameter of the main pipe 52 is 6.5mm-9.8mm, for example, it can be 6.5mm, 7mm, 8mm, 9mm, or 9.8mm. The outer diameter of the branch pipe 53 is 4.5mm-7.5mm, for example, it can be 4.5mm, 5mm, 6mm, 7mm, or 7.5mm. Both the main pipe 52 and the branch pipe 53 can be selected with relatively small diameters, thereby reducing the material usage, weight, and cost of the main pipe 52, which is beneficial to the economy and lightweight design of the manifold 5, and thus to the economy and lightweight design of the heat exchanger assembly 200. On the other hand, it ensures the heat exchange efficiency of the heat exchanger assembly 200. Regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser, the manifold 5 is not directly connected to the exhaust port 611 of the compressor 61, and the dimensions of the main pipe 52 and the branch pipe 53 can both be relatively small.

[0078] According to the embodiment of the present invention, the flow collector assembly 5 is configured such that the ratio of the inner diameter of the main pipe 52 to the inner diameter of the branch pipe 53 is 1:1-9:5; and / or the outer diameter of the main pipe 52 is greater than or equal to the outer diameter of the branch pipe 53, and the ratio of the outer diameter of the main pipe 52 to the outer diameter of the branch pipe 53 is 1:1-9:5; and / or the outer diameter of the main pipe 52 is 6.5mm-12.8mm, and the outer diameter of the branch pipe 53 is 4.5mm-7.5mm; when the heat exchanger assembly 200 is used as an evaporator, the refrigerant that has undergone heat exchange in the heat exchanger assembly 200 flows into the main pipe 52 through multiple branch pipes 53, and flows out of the heat exchanger assembly 200 from the main pipe 52 through the third port 51; when the heat exchanger assembly 200 is used as a condenser, a portion of the refrigerant that has undergone heat exchange in the heat exchanger assembly 200 flows into the main pipe 52 through a portion of multiple branch pipes 53, and flows from the main pipe 52 through another portion of branch pipes 53 to another portion of the heat exchanger assembly 200, and the third port 51 is closed. This allows the manifold 5 to not be directly connected to the exhaust port 611 of the compressor 61, regardless of whether the heat exchanger assembly 200 is used as an evaporator or a condenser. Therefore, the manifold 5 can be selected with a wide range of pipe diameters, making it easy to adapt to compressors 61 of different power ranges or air conditioners or compressors 61 of different displacements.

[0079] In addition, both the main pipe 52 and the branch pipe 53 can be selected with relatively small pipe diameters, thereby reducing the material, weight and cost of the main pipe 52, which is beneficial to the economy and lightweight of the manifold 5, thus benefiting the economy and lightweight of the heat exchanger assembly 200, while ensuring the heat exchange efficiency of the heat exchanger assembly 200.

[0080] In some embodiments of this utility model, the branch pipe 53 is connected to the main pipe 52 via a second tee pipe, the inner diameter of which is greater than or equal to the outer diameter of the main pipe 52. Since the outer diameters of the branch pipe 53 and the main pipe 52 are similar, they cannot be directly connected by inserting a pipe. Connecting the branch pipe 53 and the main pipe 52 via the second tee pipe facilitates the connection between the branch pipe 53 and the main pipe 52.

[0081] In addition, the inner diameter of the second tee pipe is greater than or equal to the outer diameter of the main pipe 52, and also greater than or equal to the outer diameter of the branch pipe 53, which facilitates the insertion of the main pipe 52 and the branch pipe 53 into the second tee pipe to achieve the connection between them.

[0082] It is understandable that the branch pipe 53 can be located at one end of the length direction of the main pipe 52. When the branch pipe 53 is located at one end of the length direction of the main pipe 52, the branch pipe 53 is directly connected to one end of the length direction of the main pipe 52 through the second tee pipe, and one end of the second tee pipe is closed.

[0083] When the branch pipe 53 is located between the two ends of the main pipe 52 along its length, the main pipe 52 includes multiple connecting pipe segments spaced apart along its length. Adjacent connecting pipe segments are connected to the branch pipe 53 via a second tee pipe; that is, the three ports of the second tee pipe are connected to the two adjacent connecting pipe segments and the branch pipe 53, respectively. Therefore, installation between the main pipe 52 and the branch pipe 53 can be achieved when the inner diameter of the main pipe 52 is equal to the inner diameter of the branch pipe 53.

[0084] In some embodiments of this utility model, such as Figure 1 As shown, the manifold assembly 5 also includes a manifold 54, one end of which is connected to the main pipe 52, and the other end is connected to multiple branch pipes 53. It is understood that the manifold 54 is responsible for evenly distributing the refrigerant to various parts of the air conditioning system 300, such as the evaporator or condenser, ensuring uniform refrigerant flow in each part, thereby improving the efficiency and performance of the air conditioning system. The manifold 54 helps balance the pressure in the air conditioning system 300, ensuring smooth refrigerant flow within the system and preventing performance degradation or damage caused by pressure fluctuations.

[0085] For example in Figure 1 In the example shown, the manifold 54 connects two branch pipes 53, but the present invention is not limited to this. The manifold 54 can also connect more branch pipes 53, such as 3, 4, 5 or 6, etc.

[0086] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the multiple branch pipes 53 include at least one third branch pipe 531 and at least one fourth branch pipe 532, which are arranged at intervals along the length of the main pipe 52. This allows for the adaptation of heat exchanger pipe 41 configurations for different flow paths, for example, in... Figure 1 and Figure 2 In the example shown, there are 3 third branch pipes 531 and 1 fourth branch pipe 532. However, the present invention is not limited to this. The number of third branch pipes 531 and fourth branch pipes 532 can also be other numbers, such as 2, 4, 5 or 6.

[0087] Furthermore, such as Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the current collector component 5 has a first state and a second state, as follows: Figure 1 and Figure 7 As shown, in the first state, the refrigerant enters the main pipe 52 from the third branch pipe 531 and flows out from the fourth branch pipe 532, while the third port 51 is closed. Specifically, when in the first state, the air conditioning system 300 of this invention is in cooling mode. At this time, the third port 51 is closed, the refrigerant enters the third branch pipe 531 from the heat exchange pipe 41, enters the main pipe 52 from the third branch pipe 531, and flows out from the fourth branch pipe 532, flowing towards the heat exchange pipe 41.

[0088] like Figure 1 and Figure 8 As shown, in the second state, refrigerant enters the main pipe 52 from the third branch pipe 531 and the fourth branch pipe 532, and flows out from the third port 51. When in the second state, the air conditioning system 300 of this utility model is in heating mode. At this time, the third port 51 is open, and refrigerant enters the main pipe 52 from the third branch pipe 531 and the fourth branch pipe 532 of the heat exchange pipe 41, and then flows out from the third port 51, flowing to the return port 612 of the compressor 61.

[0089] Therefore, when the manifold 5 is used in the heat exchanger assembly 200 of the air conditioning system 300, it can automatically switch the refrigerant flow path within the heat exchanger assembly 200 in different modes of the air conditioning system 300, thereby improving the heat exchange efficiency of the heat exchanger assembly 200, enhancing the cooling or heating performance of the air conditioning system 300, and improving energy efficiency. Furthermore, it requires no additional control structure, is less susceptible to power failures, and features a simple, easy-to-implement, and low-cost structure.

[0090] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, on the projection plane perpendicular to the axis of the main pipe 52, the third branch pipe 531 and the fourth branch pipe 532 are spaced apart or at an angle. It can be understood that, on the projection plane perpendicular to the axis of the main pipe 52, the third branch pipe 531 and the fourth branch pipe 532 are spaced apart, which helps to avoid installation interference between the third branch pipe 531 and the fourth branch pipe 532.

[0091] On the other hand, since both the end of the third branch pipe 531 facing away from the main pipe 52 and the end of the fourth branch pipe 532 facing away from the main pipe 52 are connected to the heat exchange tubes 41, and the heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4, and by spacing the third branch pipe 531 and the fourth branch pipe 532 in the projection plane perpendicular to the axis of the main pipe 52, the third branch pipe 531 and the fourth branch pipe 532 can be connected to different rows of heat exchange tubes 41, thereby realizing the counter-current arrangement of the refrigerant and the heat exchange airflow. The counter-current arrangement can maintain a large temperature difference between the refrigerant and the heat exchange airflow on the heat exchange tubes 41, thereby maximizing the heat exchange efficiency. This can effectively improve the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and improve energy efficiency.

[0092] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, one end of the main pipe 52 is open in the length direction to form a third port 51, or the third port 51 is located on the peripheral wall of the main pipe 52, thereby accommodating different pipe connection methods.

[0093] Furthermore, such as Figure 1 and Figure 2 As shown, the third port 51 is connected to an extension pipe 55. The extension pipe 55 facilitates the indirect connection between the main pipe 52 and components such as the throttling device 64 in the air conditioning system 300. This can relatively reduce the difficulty of connecting the manifold 5 to other components, which is beneficial to reducing the probability of refrigerant leakage and ensuring the normal operation of the air conditioning system 300.

[0094] For example, such as Figure 7 As shown, when the air conditioning system 300 is in cooling mode, the heat exchanger assembly 200 acts as a condenser, and the refrigerant flows from the heat exchange tube 41 to the main pipe 52. At this time, the extension pipe 55 is not conductive and is in an open circuit state, thus having a liquid storage function.

[0095] It should be noted that the extension pipe 55 is welded to the main pipe 52, which can ensure the connection strength between the extension pipe 55 and the main pipe 52, improve the structural strength of the manifold 5, and ensure the reliability and stability of the manifold 5. In addition, during the welding process, the weld metal fills the gap between the main pipe 52 and the extension pipe 55, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0096] In some embodiments of this utility model, the extension pipe 55 is U-shaped or inverted U-shaped. When the refrigerant enters from the inlet / outlet pipe 34, the U-shaped or inverted U-shaped extension pipe 55 can accelerate the refrigerant under the action of centrifugal force, thereby increasing the refrigerant flow power in the main pipe 52, preventing the refrigerant from accumulating at the extension pipe 55, and improving the refrigerant flow distribution in the manifold 5. When the manifold 5 is applied to the heat exchanger assembly 200, it can improve the heat exchange efficiency of the heat exchanger assembly 200 and improve energy efficiency.

[0097] The following is for reference. Figures 3-6 A heat exchanger assembly 200 according to an embodiment of the present invention is described.

[0098] like Figures 3-6 As shown, the heat exchanger assembly 200 according to an embodiment of the present utility model includes: a heat exchanger body 4, the aforementioned flow collection assembly 5 and flow distribution assembly 100.

[0099] Specifically, refer to Figures 3-6 The heat exchanger body 4 has heat exchange tubes 41, and multiple heat exchange tubes 41 form at least one first flow path 42 and at least one second flow path 43; multiple branch pipes 53 include at least one third branch pipe 531 and at least one fourth branch pipe 532, the third branch pipe 531 is connected to the first flow path 42, and the fourth branch pipe 532 is connected to the second flow path 43; the flow distribution assembly 100 includes a body part 1 and a flow blocking component 2, the body part 1 has a first port 11, a second port 12, a first connecting hole 13 and a second connecting hole 14, the first connecting hole 13 being connected to at least one first flow path 42 and at least one second flow path 43; At the end of the first flow path 42 away from the third branch pipe 531, the second connecting hole 14 is connected to at least one end of the second flow path 43 away from the fourth branch pipe 532. The flow-blocking component 2 is provided on the body part 1. Along the length direction of the body part 1, the first port 11 and the first connecting hole 13 are located on the same side of the flow-blocking component 2, the second port 12 and the second connecting hole 14 are located on the same side of the flow-blocking component 2, and the first port 11 and the second port 12 are located on opposite sides of the flow-blocking component 2. The flow-blocking component 2 only allows the refrigerant to flow from the second port 12 side to the first connecting hole side.

[0100] It is understandable that the heat exchange tube 41 and the main body 1 serve as channels for the flow of refrigerant, which can specifically be a refrigerant. In a specific example, such as Figures 3-6 As shown, the first connecting hole 13 and the second connecting hole 14 are both provided on the peripheral wall of the body part 1 and are spaced apart along the length direction of the body part 1. The first port 11 and the second port 12 are respectively provided at both ends of the length direction of the body part 1, or the first port 11 and the second port 12 are both provided on the peripheral wall of the body part 1 and located on both sides of the flow blocking member 2.

[0101] The flow-blocking component 2 is unidirectional. It only opens when the pressure on the side of the flow-blocking component 2 closest to the second port 12 is greater than the pressure on the side of the flow-blocking component 2 closest to the first port 11, allowing the refrigerant to flow from the second port 12 to the first port 11. When the refrigerant enters the main body 1 from the second port 12, the flow-blocking component 2 opens, and part of the refrigerant flows from the second port 12 to the second connecting hole 14 and enters the heat exchange tube 41, while part of the refrigerant flows through the flow-blocking component 2 to the first connecting hole 13 and enters the heat exchange tube 41.

[0102] When the refrigerant enters the main body 1 from the first port 11, the flow-blocking component 2 is not conductive, and the refrigerant cannot flow from the end of the flow-blocking component 2 near the first port 11 to the end of the flow-blocking component 2 near the second port 12. The refrigerant can only flow from the first port 11 to the first connecting hole 13, then enter the heat exchange tube 41, and then from the heat exchange tube 41 through some branch pipes 53 into the main pipe 52. Then it flows from the main pipe 52 through some branch pipes 53 back to the heat exchange tube 41, and returns to the main body 1 through the second connecting hole 14. Finally, it flows out of the heat exchanger assembly 200 from the second port 12.

[0103] This application adds a flow-blocking component 2 to the flow-diverting assembly 100. The flow-blocking component 2 automatically opens, closes, or cuts off the flow based on the pressure difference of the refrigerant on both sides, thereby enabling automatic flow guidance of the refrigerant and changing its flow direction. When the heat exchanger assembly 200 is used in the air conditioning system 300, it can automatically switch the refrigerant flow path within the heat exchanger assembly 200 in different modes of the air conditioning system 300, thereby improving the heat exchange efficiency of the heat exchanger assembly 200, enhancing the cooling or heating performance of the air conditioning system 300, and improving energy efficiency. Furthermore, it eliminates the need for other control structures, is less susceptible to power failures, and features a simple, easy-to-implement, and low-cost structure.

[0104] Furthermore, the first connecting hole 13 is connected to the end of at least one first flow path 42 away from the third branch pipe 531, and the second connecting hole 14 is connected to the end of at least one second flow path 43 away from the fourth branch pipe. The heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4, and the heat exchange tubes 41 on the first flow path 42 near the first connecting hole 13 and the heat exchange tubes 41 on the second flow path 43 near the second connecting hole 14 are located on opposite sides of the thickness direction of the heat exchanger body 4.

[0105] refer to Figure 6 As shown, multiple heat exchange tubes 41 form three first flow paths 42 and one second flow path 43. Of course, the number of first flow paths 42 formed by multiple heat exchange tubes 41 can also be one, two, four, five or six, etc., and the number of second flow paths 43 formed by multiple heat exchange tubes 41 can also be two, three, four, five or six, etc.

[0106] When the refrigerant enters the main body 1 from the first port 11, the flow-blocking component 2 is not open, and the refrigerant can only enter the heat exchange tube 41 from the first connecting hole 13, then return to the main body 1 from the heat exchange tube 41 through the second connecting hole 14, and finally flow out of the heat exchanger assembly 200 from the second port 12. The heat exchange tube 41 on the first flow path 42 near the first connecting hole 13 and the heat exchange tube 41 on the second flow path 43 near the second connecting hole 14 are located on opposite sides of the thickness direction of the heat exchanger body 4. This can be understood as connecting the first connecting hole 13 and the second connecting hole 14 to the two sides of the heat exchanger body 4 respectively along the thickness direction of the heat exchanger body 4.

[0107] For example, refer to Figure 6 As shown, assuming the two sides of the heat exchanger body 4 in the thickness direction are the first side and the second side, the heat exchange tube 41 on the first flow path 42 near the first connecting hole 13 is located on the first side in the thickness direction of the heat exchanger body 4, and the heat exchange tube 41 on the second flow path 43 near the second connecting hole 14 is located on the second side in the thickness direction of the heat exchanger body 4. The refrigerant in the body part 1 enters the heat exchange tube 41 on the first side of the first flow path 42 through the first connecting hole 13, and flows from the first side to the second side. It then flows into the heat exchange tube 41 on the first side of the second flow path 43 through components such as the manifold 5. The refrigerant flows from the first side to the second side in the second flow path 43, and flows out of the heat exchanger body 4 through the second connecting hole 14 from the heat exchange tube 41 on the second side of the second flow path 43 to enter the body part 1.

[0108] Therefore, it can be seen that along the thickness direction of the heat exchanger body 4, the refrigerant flows from the first side to the second side within the heat exchanger body 4. This facilitates the setting of the position and orientation of the heat exchanger assembly 200 and the control of the flow direction of the airflow exchanging heat with the heat exchanger assembly 200, ensuring that the flow direction of the airflow exchanging heat with the heat exchanger assembly 200 is opposite to the flow direction of the refrigerant within the heat exchanger body 4, thus facilitating a counter-flow arrangement of the refrigerant and the heat exchange airflow. This counter-flow arrangement allows the refrigerant and the heat exchange airflow to maintain a large temperature difference on the heat exchange tube 41, thereby maximizing the heat exchange efficiency. This can effectively improve the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and increase energy efficiency.

[0109] According to the embodiment of the present invention, the heat exchanger assembly 200, by setting the above-mentioned manifold 5, has a main pipe 52 with a third port 51; there are multiple branch pipes 53, one end of which is connected to the main pipe 52. The inner diameter of the main pipe 52 is greater than or equal to the inner diameter of the branch pipe 53, or the outer diameter of the main pipe 52 is greater than or equal to the outer diameter of the branch pipe 53. On the one hand, the inner diameter of the main pipe 52 is reduced, thereby reducing the material, weight and cost of the main pipe 52, which is beneficial to the economy and lightweight of the manifold 5, and thus beneficial to the economy and lightweight of the heat exchanger assembly 200. On the other hand, the heat exchange efficiency of the heat exchanger assembly 200 is guaranteed.

[0110] In some embodiments of this utility model, such as Figure 5 As shown, the main body 1 includes a first manifold 15 and a second manifold 16. A first port 11 and a first connecting hole 13 are provided on the first manifold 15, and a second port 12 and a second connecting hole 14 are provided on the second manifold 16. The first manifold 15 and the second manifold 16 are integral parts, and a flow-blocking component 2 is provided inside the first manifold 15 or the second manifold 16. Further, the main body 1 is a flute-shaped tube. The main body 1 is vertically or inclined, and multiple first connecting holes 13 face the horizontal direction, so as to facilitate the refrigerant to flow through the main body 1 to multiple first connecting holes 13.

[0111] The first manifold 15 and the second manifold 16 are integrally machined. During the machining process, the flow-blocking component 2 can be directly fixed inside the first manifold 15 or the second manifold 16 without the need for alignment and connection of multiple pipe sections. This simplifies the assembly process of the flow divider assembly 100, reduces the difficulty of disassembly and assembly of the flow divider assembly 100, improves the assembly efficiency and maintenance efficiency of the flow divider assembly 100, and also reduces potential leakage points, thereby reducing the risk of leakage of the flow divider assembly 100.

[0112] In some embodiments of this utility model, such as Figure 5 As shown, the main body 1 includes a first manifold 15 and a second manifold 16. A first port 11 and a first connecting hole 13 are provided on the first manifold 15, and a second port 12 and a second connecting hole 14 are provided on the second manifold 16. The first manifold 15 and the second manifold 16 are separate components, and the flow-blocking component 2 is connected between the first manifold 15 and the second manifold 16.

[0113] The first manifold 15 and the second manifold 16 are manufactured separately. The first manifold 15 and the second manifold 16 are arranged along the length of the flow divider assembly 100 and connected to each other. The flow-blocking component 2 is connected between the first manifold 15 and the second manifold 16. This allows the first manifold 15 and the second manifold 16 to be manufactured separately, reducing manufacturing difficulty and improving production efficiency. When assembling the flow divider assembly 100, the first manifold 15, the flow-blocking component 2, and the second manifold 16 are connected sequentially, facilitating assembly. Furthermore, if the first manifold 15, the flow-blocking component 2, or the second manifold 16 is damaged or needs replacement, only the corresponding component needs to be replaced, rather than the entire flow divider assembly 100, thus reducing maintenance costs.

[0114] In some embodiments of this utility model, the inner diameter of the first manifold 15 is less than or equal to the inner diameter of the second manifold 16. When the refrigerant enters the second manifold 16 from the second port 12, the flow-blocking component 2 is activated, and part of the refrigerant flows from the second port 12 to the second connecting hole 14, while another part of the refrigerant flows from the second manifold 16 through the flow-blocking component 2 into the first manifold 15.

[0115] By increasing the inner diameter of the second manifold 16, the initial flow velocity of the refrigerant entering the distribution assembly 100 can be reduced, decreasing the dynamic head while maintaining a higher static head. As some refrigerant flows upward, the static pressure gradually decreases, allowing the inner diameter of the first manifold 15 to be smaller. This increases the refrigerant flow velocity and dynamic head, enabling more refrigerant to pass through the flow-blocking component 2 and enter the first manifold 15. This improves the refrigerant flow distribution within the distribution assembly 100, achieving a better distribution effect and ensuring more even distribution of refrigerant to the first connecting hole 13 and the second connecting hole 14. When the distribution assembly 100 is applied to the heat exchanger assembly 200, it can improve the heat exchange efficiency and energy efficiency of the heat exchanger assembly 200.

[0116] Furthermore, making the inner diameter of the first manifold 15 equal to the inner diameter of the second manifold 16 can effectively reduce the difficulty of production and processing, which is conducive to improving the production efficiency of the diverter assembly 100 and reducing costs.

[0117] In some embodiments, the body portion 1 is welded to the flow-blocking component 2, which ensures the reliability and stability of the connection between the body portion 1 and the flow-blocking component 2, reduces the impact of loose connection on the flow distribution effect, extends the service life of the flow distribution assembly 100, and ensures the normal operation of the heat exchanger assembly 200 when the flow distribution assembly 100 is applied to the heat exchanger assembly 200. Furthermore, since the welded connection is stable and reliable, the connection cost and maintenance cost between the body portion 1 and the flow-blocking component 2 can be relatively reduced. For example, when the body portion 1 includes a first manifold 15 and a second manifold 16 that are interconnected and separately processed, the flow-blocking component 2 can be welded to the first manifold 15 and the second manifold 16 respectively.

[0118] In some embodiments, the body portion 1 and the flow-blocking component 2 are interference-fitted. The body portion 1 has a main flow channel, and the actual size of the flow-blocking component 2 is slightly larger than the actual size of the main flow channel. During assembly, an external force is applied to achieve a tight connection between the body portion 1 and the flow-blocking component 2. The interference fit between the body portion 1 and the flow-blocking component 2 can generate huge contact pressure through the elastic deformation between the materials, thereby achieving a high-strength connection between the body portion 1 and the flow-blocking component 2. No additional fasteners are required, which simplifies the structure and reduces costs.

[0119] In some embodiments of this utility model, such as Figure 5As shown, the first connecting hole 13 can be one or multiple holes spaced apart along the length of the first manifold 15. Providing a single first connecting hole 13 reduces the processing difficulty of the flow distribution assembly 100, thereby improving its production efficiency and reducing costs. By providing multiple first connecting holes 13 on the first manifold 15, refrigerant entering the main body 1 can flow out through these holes. When the flow distribution assembly 100 is applied to the heat exchanger assembly 200 and the air conditioning system 300, the refrigerant enters multiple heat exchange tubes 41 in the heat exchanger assembly 200 through the multiple first connecting holes 13, forming multiple flow channels. This improves the heat exchange efficiency of the heat exchanger assembly 200, enhances the cooling or heating performance of the air conditioning system 300, and increases energy efficiency.

[0120] refer to Figure 5 As shown, there are two first connecting holes 13. Of course, there can also be three, four, five or six first connecting holes 13, etc.

[0121] In some embodiments of this utility model, such as Figure 5 As shown, the second connecting hole 14 can be one or multiple holes spaced apart along the length of the second manifold 16. Providing a single second connecting hole 14 reduces the processing difficulty of the flow distribution assembly 100, thereby improving its production efficiency and reducing costs. Multiple second connecting holes 14 on the second manifold 16 allow refrigerant to flow into or out of the main body 1. When the flow distribution assembly 100 is applied to the heat exchanger assembly 200 and the air conditioning system 300, the multiple second connecting holes 14 connect with multiple heat exchange tubes 41 in the heat exchanger assembly 200. Refrigerant can enter the multiple heat exchange tubes 41 in the heat exchanger assembly 200 through the multiple second connecting holes 14, or enter the flow distribution assembly 100 from the heat exchanger assembly 200 through the multiple second connecting holes 14, forming multiple flow channels. This improves the heat exchange efficiency of the heat exchanger assembly 200, enhances the cooling or heating performance of the air conditioning system 300, and improves energy efficiency.

[0122] Specifically, the second connecting hole 14 can be one, two, three, four, five, or six, etc.

[0123] In some embodiments of this utility model, such as Figure 9 As shown, the main body 1 includes a connecting pipe 101 and a distributor 71. A flow-blocking component 2 is disposed in the connecting pipe. A second port 12 and a second connecting hole 14 are connected to the connecting pipe. At least one of the second port 12 and the second connecting hole 14 is connected to one end of the connecting pipe. The distributor 71 has a main interface 711 and a plurality of distribution holes 712. The main interface 711 is connected to the other end of the connecting pipe. At least some of the distribution holes 712 are first connecting holes 13.

[0124] In some embodiments of this utility model, the connecting pipe 101 is arranged vertically or inclined, the flow-blocking component 2 is arranged vertically or inclined inside the connecting pipe 101, the distributor 71 forms a flow-dividing cavity, the main interface 711 and a plurality of first connecting holes 13 are respectively located on opposite sides of the distributor 71, the plurality of first connecting holes 13 are all connected to the flow-dividing cavity, the plurality of first connecting holes 13 face upward or obliquely upward, the main interface 711 is connected to the flow-dividing cavity and faces the plurality of first connecting holes 13, and the refrigerant flowing in from the main interface 711 is easily diverted to the plurality of first connecting holes 13.

[0125] In some embodiments of this utility model, such as Figure 5 As shown, the heat exchanger assembly 200 also includes: a first branch pipe 31, which is connected between the first connecting hole 13 and the first flow path 42; the first branch pipe 31 is connected to the main body 1 and communicates with the first connecting hole 13. The first branch pipe 31 can be used to indirectly connect the main body 1 and the heat exchange tube 41 of the heat exchanger assembly 200, which can relatively reduce the difficulty of connecting the flow distribution assembly 100 and the heat exchange tube 41, reduce the probability of refrigerant leakage, and ensure the normal operation of the heat exchanger assembly 200.

[0126] refer to Figure 1 and Figure 2 As shown, there are three first branch pipes 31. Furthermore, there are two first connecting holes 13, one of which connects to one first branch pipe 31, and the other connects to two first branch pipes 31. Of course, there can also be one, two, four, five, or six first branch pipes 31, etc., and each first connecting hole 13 can connect to one, two, three, four, five, or six first branch pipes 31, etc.

[0127] It should be noted that the welding connection between the multiple first branch pipes 31 and the main body 1 can ensure the connection strength between the first branch pipes 31 and the main body 1, improve the structural strength of the diversion assembly 100, and ensure the reliability and stability of the diversion assembly 100. Furthermore, during the welding process, the weld metal fills the gap between the main body 1 and the first branch pipes 31, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0128] In some embodiments of this utility model, such as Figure 5 As shown, a second branch pipe 32 is connected between the second connection and the second flow path 43. The second branch pipe 32 is connected to the main body 1 and communicates with the second connecting hole 14. The second branch pipe 32 can be used to indirectly connect the main body 1 to the heat exchange tube 41 of the heat exchanger assembly 200, which can relatively reduce the difficulty of connecting the flow distribution assembly 100 and the heat exchange tube 41, reduce the probability of refrigerant leakage, and ensure the normal operation of the heat exchanger assembly 200.

[0129] Specifically, the second branch pipe 32 can be one, two, three, four, five or six, etc., and each second connecting hole 14 can be connected to one, two, three, four, five or six, etc.

[0130] It should be noted that the welding connection between the multiple second branch pipes 32 and the main body 1 can ensure the connection strength between the second branch pipes 32 and the main body 1, improve the structural strength of the diversion assembly 100, and ensure the reliability and stability of the diversion assembly 100. In addition, during the welding process, the weld metal fills the gap between the main body 1 and the second branch pipes 32, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0131] In some embodiments of this utility model, the inner diameter of the second branch pipe 32 is less than or equal to the inner diameter of the first branch pipe 31 and / or the area of ​​the second connecting hole 14 is less than the area of ​​the first connecting hole 13. When the refrigerant enters the second manifold 16 from the second port 12, the flow-blocking component 2 is activated, and part of the refrigerant flows from the second port 12 to the second connecting hole 14, while the other part of the refrigerant flows to the first connecting hole 13 after passing through the flow-blocking component 2.

[0132] Understandably, by making the inner diameter of the second branch pipe 32 smaller than that of the first branch pipe 31, the flow resistance of the refrigerant flowing into the second straight pipe section increases after the refrigerant flows into the main body 1 from the second port 12. This causes more refrigerant to continue flowing towards the first connecting hole 13 after passing through the flow-blocking component 2, thereby meeting the flow requirements of the first connecting hole 13. This better achieves the flow-dividing effect, improves the problem of uneven flow distribution caused by refrigerant dynamic pressure, and further enhances the flow-dividing effect of the flow-dividing component 100. When the flow-dividing component 100 is applied to the heat exchanger assembly 200 and the air conditioning system 300, it can improve the heat exchange efficiency of the heat exchanger assembly 200, improve the cooling or heating performance of the air conditioning system 300, and improve energy efficiency.

[0133] The distributor 71 is used to distribute gas when the flow splitting component 100 is used as a gas pipe, and to distribute liquid when the flow splitting component 100 is used as a liquid pipe, so as to achieve uniform flow distribution of multiple first branch pipes 31 connected to the distributor 71, thereby ensuring the consistency of the operating conditions of multiple first branch pipes 31 and improving heat exchange stability.

[0134] When the diversion assembly 100 is used in the heat exchanger assembly 200 and the air conditioning system 300, the heat exchanger assembly 200 includes a heat exchanger body 4 and a manifold assembly 5. The heat exchanger body 4 has multiple heat exchange tubes 41, which serve as refrigerant flow channels. The manifold assembly 5 is located on one side of the heat exchanger body 4 and communicates with the heat exchange tubes 41. A third port 51 is formed on the manifold assembly 5. The diversion assembly 100 is located on the side of the heat exchanger body 4 away from the manifold assembly 5, or the diversion assembly 100 and the manifold assembly 5 are located on the same side of the heat exchanger body 4. The diversion assembly 100 communicates with the heat exchange tubes 41, and the refrigerant is adapted to flow from one of the diversion assembly 100 and the manifold assembly 5 to the other.

[0135] When the heat exchanger assembly 200 is used as a condenser, the refrigerant flows into the heat exchanger assembly 200 from the first port 11, and then flows into the heat exchange tube 41 or heat exchange channel of the heat exchanger assembly 200 from the first connecting hole 13, and then flows out of the heat exchanger assembly 200 from the second connecting hole 14 and the second port 12 in sequence. The distributor 71 is used to split the gaseous refrigerant, and the flow-blocking component 2 is shut off.

[0136] like Figure 7 As shown, when the air conditioning system 300 is in cooling mode, the heat exchanger assembly 200 acts as a condenser. The refrigerant is cooled and condensed inside the heat exchanger assembly 200. The refrigerant flows into the heat exchanger assembly 200 from the first port 11. At this time, the flow-blocking component 2 is not open. The refrigerant enters the heat exchange tube 41 through the first connecting hole 13 from the first branch pipe 31 directly connected to the first connecting hole 13. The refrigerant also enters the distributor 71 through the first connecting hole 13 and flows to the multiple first branch pipes 31 connected to the distributor 71 before entering the heat exchange tube 41. The third port 51 is closed. After being collected by the flow-collecting component 5, the refrigerant re-enters the heat exchange tube 41, then enters the connecting pipe 101 from the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 from the second port 12. The refrigerant enters the heat exchange tube 41 through the first connecting hole 13, and after being collected by the manifold 5, it re-enters the heat exchange tube 41. This can further reduce the temperature of the refrigerant and increase its subcooling, thereby forming a subcooling tube design for the condenser and better enhancing the heat exchange efficiency of the heat exchanger assembly 200.

[0137] When the heat exchanger assembly 200 functions as an evaporator, refrigerant flows into the heat exchanger assembly 200 from the second port 12, and then flows out of the heat exchanger assembly 200 through the first connecting hole 13 and the second connecting hole 14 into the heat exchange tube 41 or heat exchange channel. The distributor 71 is used to distribute the liquid refrigerant, the flow-blocking component 2 is open, and the first port 11 is closed. In this embodiment, the first port 11 is closed by a valve in the air conditioner, for example, by a five-way valve 636.

[0138] like Figure 8As shown, when the air conditioning system 300 is in heating mode, the heat exchanger assembly 200 acts as an evaporator. The refrigerant evaporates and absorbs heat in the heat exchanger assembly 200. The refrigerant flows into the heat exchanger assembly 200 from the second port 12. At this time, the flow-blocking component 2 is open, and part of the refrigerant enters the heat exchange tube 41 from the second connecting hole 14. Another part of the refrigerant passes through the flow-blocking component 2 in the connecting pipe 101, then enters the heat exchange tube 41 through the first connecting hole 13 from the first branch pipe 31 directly connected to the first connecting hole 13. The refrigerant also enters the distributor 71 through the first connecting hole 13 and flows to multiple first branch pipes 31 connected to the distributor 71 before entering the heat exchange tube 41. The third port 51 is open, and the refrigerant in the heat exchange tube 41 flows out of the heat exchanger assembly 200 through the third port 51 after being collected by the flow-collecting component 5. Through the cooperation of the flow-dividing component 100 and the heat exchange tube 41, a multi-path heat exchange pattern can be formed, thereby improving the heat exchange efficiency of the heat exchanger assembly 200.

[0139] Furthermore, in heating mode, the refrigerant needs to pass through a subcooling pipe when entering the conventional outdoor heat exchanger, resulting in pressure loss. However, in this application, by setting a flow-diverting assembly 100 with a flow-blocking component 2, the heat exchanger assembly 200 can form a different flow path in heating mode than in cooling mode. In heating mode, the refrigerant does not need to pass through a subcooling pipe when entering the heat exchanger assembly 200, thus avoiding significant pressure loss.

[0140] In the air conditioning system 300, the heat exchanger assembly 200 serves as the outdoor heat exchanger. During cooling and heating modes, the heat exchanger assembly 200 functions as both the condenser and evaporator, respectively. In these modes, the refrigerant undergoes boiling evaporation and cooling condensation processes within the heat exchanger assembly 200. By incorporating a flow-diverting assembly 100 with flow-blocking components 2, given a fixed area and volume of the heat exchanger assembly 200, different flow paths can be created for the refrigerant, resulting in different optimal flow path designs for the heat exchange during the evaporation and condensation processes within the heat exchanger assembly 200.

[0141] Furthermore, the distributor 71 of this application only plays a distribution role in cooling mode and heating mode without converging, so that the refrigerant is distributed to each distributor at the main interface 711 and then directly enters the first branch pipe 31, without secondary mixing between branches, thereby avoiding backflow and interference, ensuring the consistency of each branch, and improving the distribution stability and heat exchange efficiency in cooling mode and heating mode.

[0142] In some embodiments of this utility model, there are multiple first connecting holes 13, each distribution hole 712 is connected to a first branch pipe 31, and the first port 11 is located on the connecting pipe 101 between the distributor 71 and the flow blocking component 2.

[0143] Understandably, when refrigerant flows into the distribution assembly 100 from the first port 11, because the flow-blocking component 2 is not conductive, the refrigerant enters the distributor 71 from the main interface 711 through the first connecting hole 13, and flows into the corresponding first branch pipe 31 through the multiple distribution holes 712 of the distributor 71, thereby achieving uniform flow distribution. Simultaneously, when refrigerant flows into the distribution assembly 100 from the second port 12, because the flow-blocking component 2 is conductive, part of the refrigerant flows out from the second connecting hole 14, while the other part passes through the flow-blocking component 2 in the connecting pipe 101, enters the distributor 71 from the main interface 711 through the first connecting hole 13, and flows into the corresponding first branch pipe 31 through the multiple distribution holes 712 of the distributor 71, thereby achieving uniform flow distribution.

[0144] Thus, this configuration ensures that the refrigerant, whether entering the distribution assembly 100 from the first port 11 or the second port 12, converges to the first connecting hole 13, then flows into the distributor 71 through the first connecting hole 13 and the main interface 711, and is then distributed at equal pressure to each distribution hole 712. This effectively avoids the formation of bypasses and stagnation chambers that bypass the distributor 71, reduces energy loss, and improves the heat exchange efficiency of the heat exchanger assembly 200 using this distribution assembly 100.

[0145] In some embodiments of this utility model, there are multiple first connecting holes 13 and N distribution holes 712. N-1 distribution holes 712 are respectively connected to a first branch pipe 31, and the remaining distribution hole 712 forms a first port 11.

[0146] Therefore, when the refrigerant flows into the distribution assembly 100 from the first port 11, all the refrigerant flows into the distributor 71. Since the flow-blocking component 2 is not conductive, the refrigerant flows from the distributor 71 through the other distribution holes 712 to the corresponding first branch pipes 31, thereby achieving uniform flow distribution. Furthermore, by integrating the distribution assembly 100 with the distributor 71 through the first port 11, the overall compactness of the distribution assembly 100 is improved, which is conducive to miniaturization and reduces the space occupied by the distribution assembly 100 in the heat exchanger assembly 200. When the refrigerant enters the distribution assembly 100 from the second port 12 and reaches the first connecting hole 13 through the flow-blocking component 2, it is also evenly distributed to the other distribution holes 712 through the main interface 711, which ensures both compact arrangement and uniform supply to each first branch pipe 31, so that the distribution assembly 100 is suitable for miniaturized application scenarios.

[0147] In addition, when the refrigerant flows into the distribution assembly 100 from the first port 11, it forms the first port 11 through the other distribution hole 712. After entering from the first port 11, the refrigerant is directly distributed at the same pressure in the distributor 71 and is evenly distributed by the other distribution holes 712. The flow path of the refrigerant is short and the additional pressure drop is small, which improves the flow efficiency.

[0148] In some embodiments of this utility model, such as Figure 5 As shown, the first port 11 is formed by opening one end of the main body 1 on the side of the flow-blocking component 2 away from the second port 12 in the length direction. The first port 11 is set at one end of the main body 1 in the length direction. The structure is simple and easy to process and manufacture. It is beneficial to improve the production and processing efficiency and reduce the cost. Moreover, the first port 11 is set at the end of the main body 1 in the length direction, which is also convenient for installation and assembly, thereby improving the assembly efficiency.

[0149] In some embodiments of this invention, the first port 11 is located on the peripheral wall of the main body 1. The refrigerant enters from the first port 11 located on the peripheral wall of the main body 1, which can form strong vortices, secondary flows and turbulence within the main body 1, making the refrigerant temperature more uniform and improving the convective heat transfer coefficient.

[0150] In some embodiments of this utility model, such as Figure 5 As shown, the heat exchanger assembly 200 also includes an inlet pipe 33, one end of which is connected to the first port 11. The inlet pipe 33 is connected to the main body 1 and communicates with the first port 11. The arrangement of the inlet pipe 33 facilitates indirect connection between the main body 1 and components such as the four-way valve in the air conditioning system 300, which can relatively reduce the difficulty of connecting the flow distribution assembly 100 with other components, and helps to reduce the probability of refrigerant leakage, thus ensuring the normal operation of the air conditioning system 300.

[0151] For example, such as Figure 7 As shown, when the air conditioning system 300 is in cooling mode, the heat exchanger assembly 200 acts as a condenser. The refrigerant flows into the heat exchanger assembly 200 from the inlet pipe 33. At this time, the flow-blocking component 2 is not open, and the refrigerant enters the heat exchange tube 41 from the first connecting hole 13. The third port 51 is closed. After being collected by the flow-collecting component 5, the refrigerant re-enters the heat exchange tube 41, then enters the body part 1 from the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 from the second port 12.

[0152] like Figure 8As shown, when the air conditioning system 300 is in heating mode, the heat exchanger assembly 200 acts as an evaporator. Refrigerant flows into the heat exchanger assembly 200 from the second port 12. The flow-blocking component 2 is open, and part of the refrigerant enters the heat exchange tube 41 from the second connecting hole 14. Another part of the refrigerant passes through the flow-blocking component 2 in the body part 1, and then enters the heat exchange tube 41 through the first connecting hole 13. The third port 51 is open, and the refrigerant in the heat exchange tube 41 flows out of the heat exchanger assembly 200 through the third port 51 after being collected by the flow-collecting component 5. At this time, the intake pipe 33 is set to an open circuit state and has a liquid storage function. Part of the liquid refrigerant in the body part 1 will be stored in the intake pipe 33 and will not participate in the circulation of the air conditioning system 300, thus regulating the refrigerant flow rate in the air conditioning system 300. The length and diameter of the intake pipe 33 can be adjusted according to the specific operating requirements of the air conditioning system 300, thereby regulating the refrigerant flow rate in the air conditioning system 300 according to the specific situation.

[0153] It should be noted that the intake pipe 33 is welded to the main body 1, which can ensure the connection strength between the intake pipe 33 and the main body 1, improve the structural strength of the diversion assembly 100, and ensure the reliability and stability of the diversion assembly 100. In addition, during the welding process, the weld metal fills the gap between the main body 1 and the intake pipe 33, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0154] In some embodiments of this utility model, such as Figure 5 As shown, the intake pipe 33 is U-shaped or inverted U-shaped. When the refrigerant enters through the intake pipe 33, the U-shaped intake pipe 33 can accelerate the refrigerant under the action of centrifugal force, thereby increasing the refrigerant flow power within the body 1 and preventing the refrigerant from accumulating at the intake pipe 33. This can improve the refrigerant flow distribution within the distribution assembly 100. When the distribution assembly 100 is applied to the heat exchanger assembly 200, it can improve the heat exchange efficiency of the heat exchanger assembly 200 and increase energy efficiency.

[0155] In some embodiments of this utility model, such as Figure 5 As shown, the second port 12 is formed by opening one end of the main body 1 on the side of the flow-blocking component 2 away from the first port 11 along its length. The second port 12 is provided at one end of the main body 1 along its length, which is simple in structure, convenient in processing and manufacturing, and conducive to improving production efficiency and reducing costs. In addition, the second port 12 is located at the end of the main body 1 along its length, which is also convenient for installation and assembly, thereby improving assembly efficiency.

[0156] In some embodiments of this utility model, such as Figure 5 As shown, the second port 12 is located on the peripheral wall of the main body 1. The refrigerant enters from the second port 12 located on the peripheral wall of the main body 1, which can form strong vortices, secondary flows and turbulence within the main body 1, making the refrigerant temperature more uniform and improving the convective heat transfer coefficient.

[0157] In some embodiments of this utility model, such as Figure 5 As shown, the heat exchanger assembly 200 also includes an inlet / outlet pipe 34, one end of which is connected to the second port 12. The inlet / outlet pipe 34 is connected to the main body 1 and communicates with the second port 12. The inlet / outlet pipe 34 facilitates indirect connection between the main body 1 and components such as the throttling device 64 in the air conditioning system 300, which can relatively reduce the difficulty of connecting the flow distribution assembly 100 with other components, and help reduce the probability of refrigerant leakage, thus ensuring the normal operation of the air conditioning system 300.

[0158] For example, such as Figure 5 As shown, when the air conditioning system 300 is in cooling mode, the heat exchanger assembly 200 acts as a condenser. The refrigerant flows into the heat exchanger assembly 200 from the first port 11. At this time, the flow-blocking component 2 is not open, and the refrigerant enters the heat exchange tube 41 from the first connecting hole 13. The third port 51 is closed. After being collected by the flow-collecting component 5, the refrigerant re-enters the heat exchange tube 41, then enters the body part 1 from the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 from the inlet and outlet pipes 34.

[0159] like Figure 6 As shown, when the air conditioning system 300 is in heating mode, the heat exchanger assembly 200 acts as an evaporator. Refrigerant flows into the heat exchanger assembly 200 from the inlet and outlet pipes 34. The flow-blocking component 2 is open, and part of the refrigerant enters the heat exchange tube 41 from the second connecting hole 14. Another part of the refrigerant passes through the flow-blocking component 2 in the body part 1 and then enters the heat exchange tube 41 through the first connecting hole 13. The third port 51 is open, and the refrigerant in the heat exchange tube 41 flows out of the heat exchanger assembly 200 through the third port 51 after being collected by the flow-collecting component 5.

[0160] It should be noted that the welding connection between the inlet / outlet pipe 34 and the main body 1 can ensure the connection strength between the inlet / outlet pipe 34 and the main body 1, improve the structural strength of the diversion assembly 100, and ensure the reliability and stability of the diversion assembly 100. Furthermore, during the welding process, the weld metal fills the gap between the main body 1 and the inlet / outlet pipe 34, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0161] In some embodiments of this utility model, such as Figure 5 As shown, the inlet and outlet pipes 34 are U-shaped. When the refrigerant enters through the inlet and outlet pipes 34, the U-shaped inlet and outlet pipes 34 can accelerate the refrigerant under the action of centrifugal force, thereby increasing the refrigerant flow power within the main body 1 and preventing the refrigerant from accumulating at the inlet and outlet pipes 34. This can improve the refrigerant flow distribution within the flow distribution assembly 100. When the flow distribution assembly 100 is applied to the heat exchanger assembly 200, it can improve the heat exchange efficiency of the heat exchanger assembly 200 and improve energy efficiency.

[0162] In some embodiments of this utility model, the flow-blocking component 2 is a one-way valve, a solenoid valve, or a baffle. Depending on the specific operational requirements of the flow-diverting assembly 100, a one-way valve, a solenoid valve, or a baffle can be selected as the flow-blocking component 2. This method is simple in structure, easy to implement, and low in cost, and can meet the requirement of allowing only the refrigerant within the main body 1 to flow from the second port 12 to the first port 11.

[0163] In some embodiments of this utility model, when the heat exchanger assembly is used as an evaporator, the refrigerant flows into the heat exchanger assembly from the second port 12, and flows into the heat exchange tube 41 of the heat exchanger assembly from the first connecting hole 13 and the second connecting hole 14, and then flows out of the heat exchanger assembly from the third port 51. The flow-blocking component 2 is open, and the first port 11 is closed.

[0164] When the heat exchanger assembly is used as a condenser, the refrigerant flows into the heat exchanger assembly from the first port 11, and then flows into the heat exchange tube 41 of the heat exchanger assembly from the first connecting hole 13, and then flows out of the heat exchanger assembly from the second connecting hole 14 and the second port 12 in sequence. The flow-blocking component 2 and the third port 51 are both cut off.

[0165] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4. The first flow path 42 and the second flow path 43 both include multiple rows of heat exchange tubes 41. The heat exchange tubes 41 of the first flow path 42 connected to the first connecting hole 13 and the heat exchange tubes 41 of the second flow path 43 connected to the second connecting hole 14 are located on opposite sides of the thickness direction of the heat exchanger body 4 or in different rows.

[0166] It is understandable that the refrigerant flows in the same direction within the heat exchanger body 4 along its thickness. This facilitates the setting of the position and orientation of the heat exchanger assembly 200 and the control of the flow direction of the airflow exchanging heat with the heat exchanger assembly 200, ensuring that the flow direction of the airflow exchanging heat with the heat exchanger assembly 200 is opposite to the flow direction of the refrigerant within the heat exchanger body 4. This facilitates a counter-flow arrangement of the refrigerant and the heat exchange airflow. This counter-flow arrangement allows the refrigerant and the heat exchange airflow to maintain a large temperature difference on the heat exchange tube 41, thereby maximizing heat exchange efficiency. This effectively improves the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and increase energy efficiency.

[0167] This ensures that the refrigerant flows in a consistent direction along the thickness of the heat exchanger body 4 within the heat exchanger tube 41. This facilitates the setting of the position and orientation of the heat exchanger assembly 200 and the control of the flow direction of the airflow exchanging heat with the heat exchanger assembly 200, enabling counter-current arrangement of the refrigerant and the heat exchange airflow. This maintains a large temperature difference between the refrigerant and the heat exchange airflow on the heat exchanger tube 41, thereby maximizing the heat exchange efficiency of the heat exchanger tube 41. This improves the heat exchange efficiency of the heat exchanger assembly 200, and when the heat exchanger assembly 200 is used in the air conditioning system 300, it helps to improve the performance and energy efficiency of the air conditioning system 300.

[0168] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the heat exchange tubes 41 of the first flow path 42 connected to the first connecting hole 13 are located in a row on the leeward side of the heat exchanger body 4, and the heat exchange tubes 41 of the second flow path 43 connected to the second connecting hole 14 are located in a row on the windward side of the heat exchanger body 4.

[0169] It is understandable that the refrigerant in the main body 1 enters the heat exchange tube 41 located on the leeward side of the first flow path 42 through the first connecting hole 13, and then flows out of the heat exchanger body 4 through the second connecting hole 14 from the heat exchange tube 41 located on the windward side of the second flow path 43 to enter the main body 1.

[0170] This ensures that the refrigerant flows from the leeward side to the windward side along the thickness direction of the heat exchanger body 4, achieving a counter-flow arrangement between the refrigerant and the heat exchange airflow. This counter-flow arrangement allows the refrigerant and the heat exchange airflow to maintain a large temperature difference on the heat exchange tube 41, thereby maximizing heat exchange efficiency. This effectively improves the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and increase energy efficiency.

[0171] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4. The first flow path 42 and the second flow path 43 both include multiple rows of heat exchange tubes 41. The heat exchange tubes 41 connected to the third branch pipe 531 in the first flow path 42 and the heat exchange tubes 41 connected to the fourth branch pipe 532 in the second flow path 43 are located on opposite sides or in different rows along the thickness direction of the heat exchanger body 4.

[0172] It is understandable that the refrigerant flows in the same direction within the heat exchanger body 4 along its thickness. This facilitates the setting of the position and orientation of the heat exchanger assembly 200 and the control of the flow direction of the airflow exchanging heat with the heat exchanger assembly 200, ensuring that the flow direction of the airflow exchanging heat with the heat exchanger assembly 200 is opposite to the flow direction of the refrigerant within the heat exchanger body 4. This facilitates a counter-flow arrangement of the refrigerant and the heat exchange airflow. This counter-flow arrangement allows the refrigerant and the heat exchange airflow to maintain a large temperature difference on the heat exchange tube 41, thereby maximizing heat exchange efficiency. This effectively improves the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and increase energy efficiency.

[0173] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the heat exchange tubes 41 connected to the first flow path 42 and the third branch pipe 531 are located in a row on the windward side of the heat exchanger body 4, while the heat exchange tubes 41 connected to the second flow path 43 and the fourth branch pipe 532 are located in a row on the leeward side of the heat exchanger body 4. It can be understood that this arrangement allows the third branch to accommodate the installation of the first branch pipe 31, and the fourth branch to accommodate the installation of the second branch, thus ensuring that the heat exchange tubes 41 on the first flow path 42 near the first connecting hole 13 are located on the leeward side of the heat exchanger body 4, and the heat exchange tubes 41 on the second flow path 43 near the second connecting hole 14 are located on the windward side of the heat exchanger body 4.

[0174] This ensures that the refrigerant flows from the leeward side to the windward side along the thickness direction of the heat exchanger body 4, achieving a counter-flow arrangement between the refrigerant and the heat exchange airflow. This counter-flow arrangement allows the refrigerant and the heat exchange airflow to maintain a large temperature difference on the heat exchange tube 41, thereby maximizing heat exchange efficiency. This effectively improves the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and increase energy efficiency.

[0175] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4. The first flow path 42 includes a row of windward heat exchange tubes 45 located on the windward side of the heat exchanger body 4 and a row of leeward heat exchange tubes 44 located on the leeward side of the heat exchanger body 4. When the heat exchanger assembly is used as a condenser and as an evaporator, the refrigerant flowing into the first flow path 42 first flows through the leeward heat exchange tubes 44 and then flows through the windward heat exchange tubes 45.

[0176] Understandably, the refrigerant in the main body 1 enters the leeward side heat exchange tube 44 of the first flow path 42 through the first connecting hole 13, and flows from the leeward side heat exchange tube 44 to the windward side heat exchange tube 45. This ensures that the refrigerant in the first flow path 42 flows from the leeward side to the windward side along the thickness direction of the heat exchanger body 4, thus achieving a counter-current arrangement of the refrigerant and the heat exchange airflow. This maintains a large temperature difference between the refrigerant and the heat exchange airflow on the heat exchange tube 41, thereby maximizing the heat exchange efficiency. This can effectively improve the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and improve energy efficiency.

[0177] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4. The second flow path 43 includes a row of windward heat exchange tubes 45 located on the windward side of the heat exchanger body 4 and a row of leeward heat exchange tubes 44 located on the leeward side of the heat exchanger body 4. When the heat exchanger assembly is used as an evaporator, the refrigerant flowing into the second flow path 43 first flows through the windward heat exchange tubes 45 and then flows through the leeward heat exchange tubes 44. When the heat exchanger assembly is used as a condenser, the refrigerant flowing into the second flow path 43 first flows through the leeward heat exchange tubes 44 and then flows through the windward heat exchange tubes 45.

[0178] The refrigerant flowing out of the first flow path 42 flows into the leeward side heat exchange tube 44 of the second flow path 43. The refrigerant flows from the leeward side heat exchange tube 44 to the windward side heat exchange tube 45 in the second flow path 43, and flows out of the heat exchanger body 4 through the second connecting hole 14 from the windward side heat exchange tube 45 of the second flow path 43 to enter the body part 1.

[0179] This ensures that the refrigerant in the second flow path 43 flows from the leeward side to the windward side along the thickness direction of the heat exchanger body 4, achieving a counter-flow arrangement between the refrigerant and the heat exchange airflow. This maintains a large temperature difference between the refrigerant and the heat exchange airflow on the heat exchange tube 41, thereby maximizing heat exchange efficiency. This effectively improves the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and increase energy efficiency.

[0180] In some embodiments, the refrigerant in the body 1 enters the leeward heat exchange tube 44 of the first flow path 42 through the first connecting hole 13, and flows from the leeward heat exchange tube 44 to the windward heat exchange tube 45. Then, the refrigerant flows from the first flow path 42 into the leeward heat exchange tube 44 of the second flow path 43 through components such as the manifold 5. The refrigerant flows from the leeward heat exchange tube 44 to the windward heat exchange tube 45 in the second flow path 43, and flows out of the heat exchanger body 4 through the second connecting hole 14 from the windward heat exchange tube 45 of the second flow path 43 to enter the body 1.

[0181] In some embodiments of this utility model, such as Figure 3 , Figure 4 and Figure 6 As shown, the flow collector assembly 5 and the flow divider assembly 100 are located on the same side along the length of the heat exchanger body 4. Therefore, the positions of the flow collector assembly 5 and the flow divider assembly 100 can be selected based on the number of rows of heat exchange tubes 41 arranged along the thickness direction of the heat exchanger body 4 and the specific arrangement of the first flow path 42 and the second flow path 43, making the connection between the flow collector assembly 5 and the flow divider assembly 100 and the heat exchanger body 4 simpler and more convenient. Specifically, as... Figure 4 and Figure 3 As shown in the example, the flow collector 5 and the flow divider 100 are located on the same side of the length of the heat exchanger body 4.

[0182] In some embodiments of this utility model, when the heat exchanger assembly 200 is used as an evaporator, the refrigerant flows into the heat exchanger assembly 200 from the second port 12, the first connecting hole 13 and the second connecting hole 14 for heat exchange, and then flows out of the heat exchanger assembly 200 from the third port 51 after passing through the branch pipe 53 and the main pipe 52 in sequence. The flow-blocking component 2 is open and the first port 11 is closed.

[0183] When the heat exchanger assembly 200 is used as a condenser, the refrigerant flows into part of the heat exchanger assembly 200 through the first port 11 and the first connecting hole 13 for heat exchange. Then, it flows into another part of the heat exchanger assembly 200 for heat exchange in sequence through the branch pipe 53, the main pipe 52, and another branch pipe 53. Finally, it flows out of the heat exchanger assembly 200 in sequence through the second connecting hole 14 and the second port 12. The flow-blocking component 2 and the third port 51 are both cut off.

[0184] When the heat exchanger assembly 200 is applied to the air conditioning system 300, the air conditioning system 300 is in heating mode. The refrigerant evaporates and absorbs heat in the heat exchanger assembly 200. The refrigerant flows into the heat exchanger assembly 200 from the second port 12. At this time, the flow-blocking component 2 is open, and part of the refrigerant enters the heat exchange tube 41 of the second flow path 43 from the second connecting hole 14. Another part of the refrigerant passes through the flow-blocking component 2 in the body part 1, the first port 11 is closed, and then enters the heat exchange tube 41 of the first flow path 42 through the first connecting hole 13. At this time, the third port 51 is open, and the refrigerant in multiple flow paths flows out of the heat exchanger assembly 200 through the third port 51 after being collected by the flow-collecting component 5. By cooperating with the flow-dividing component 100 and the heat exchange tube 41, a multi-flow heat exchange pattern can be formed, thereby improving the heat exchange efficiency of the heat exchanger assembly 200.

[0185] When the heat exchanger assembly 200 is applied to the air conditioning system 300, the air conditioning system 300 is in cooling mode. Refrigerant flows into the heat exchanger assembly 200 from the first port 11. At this time, the flow-blocking component 2 is not conductive. The refrigerant enters the heat exchange tube 41 of the first flow path 42 from the first connecting hole 13. The third port 51 is set to an open circuit state. After being collected by the flow-collecting component 5, the refrigerant enters the heat exchange tube 41 of the second flow path 43 from the first flow path 42, then enters the body part 1 from the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 from the second port 12. The refrigerant entering the heat exchange tube 41 from the first connecting hole 13 and then re-entering the heat exchange tube 41 after being collected by the flow-collecting component 5 can further reduce the temperature of the refrigerant and increase its subcooling, thus forming a subcooling tube design for the condenser and better enhancing the heat exchange efficiency of the heat exchanger assembly 200.

[0186] In the air conditioning system 300, the heat exchanger assembly 200 serves as the outdoor heat exchanger. During cooling and heating modes, the heat exchanger assembly 200 functions as both the condenser and evaporator, respectively. In these modes, the refrigerant undergoes boiling evaporation and cooling condensation processes within the heat exchanger assembly 200. By incorporating a manifold distribution assembly 100 with flow-blocking components 2, given a fixed area and volume of the heat exchanger assembly 200, different flow paths can be created for the refrigerant. This allows for different optimal flow path designs for the heat exchange during the evaporation and condensation processes within the heat exchanger assembly 200. This improves the heat exchange efficiency of the heat exchanger assembly 200, thereby enhancing the cooling or heating performance of the air conditioning system 300 and improving energy efficiency.

[0187] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, there are multiple first connecting holes 13. When the heat exchanger assembly 200 functions as an evaporator and when it functions as a condenser, the multiple first connecting holes 13 are used to distribute the refrigerant. This improves the refrigerant flow distribution within the distribution assembly 100, achieving a better flow path distribution effect. When the distribution assembly 100 is applied to the heat exchanger assembly 200, it ensures that the refrigerant can be more evenly distributed into different flow paths of the heat exchanger assembly 200, thereby improving the heat exchange efficiency and energy efficiency of the heat exchanger assembly 200. Furthermore, the multiple first connecting holes 13 are located above or diagonally above the flow-blocking component 2, and the multiple first connecting holes 13 face horizontally, upwards, or diagonally upwards, thus facilitating the distribution of refrigerant to the multiple first connecting holes 13.

[0188] In some embodiments of this invention, the first flow path 42 is located above the second flow path 43; and / or the airflow or average velocity flowing through the first flow path 42 is greater than the airflow or average velocity flowing through the second flow path 43. Thus, when the heat exchanger assembly 200 functions as a condenser, the refrigerant first passes through the first flow path 42 and then through the second flow path 43. Because the refrigerant flowing through the first flow path 42 has a higher temperature and a greater airflow or average velocity, the heat exchange efficiency of the first flow path 42 can be improved, thereby improving the heat exchange efficiency of the heat exchanger assembly 200 when it functions as a condenser, and thus improving energy efficiency.

[0189] The following is for reference. Figure 7 and Figure 8 An air conditioning system 300 according to an embodiment of the present utility model is described.

[0190] like Figure 7 and Figure 8 As shown, the air conditioning system 300 according to an embodiment of the present utility model includes: a compressor 61, an indoor heat exchanger 62, a reversing assembly 63, and the aforementioned heat exchanger assembly 200.

[0191] Specifically, refer to Figure 7 and Figure 8 The compressor 61 has an exhaust port 611 and a return port 612; one end of the indoor heat exchanger 62 is connected to the second port 12; the reversing assembly 63 has a first port 631, a second port 632, a third port 633, a fourth port 634 and a fifth port 635, the first port 631 is connected to the exhaust port 611, the third port 633 is connected to the return port 612, the second port 632 is connected to the other end of the indoor heat exchanger 62, the fourth port 634 is connected to the third port 51, the fifth port 635 is connected to the first port 11, the first port 631 is connected to the fifth port 635, the second port 632 is connected to the third port 633, or the first port 631 is connected to the second port 632, and the third port 633 is connected to the fourth port 634.

[0192] In the air conditioning system 300, the refrigerant is refrigerant. During the specific operation of the air conditioning system 300, such as... Figure 5 As shown in the example, when the air conditioning system 300 is in cooling mode, the commutator 63 is in the first switching state, the first port 631 of the commutator 63 is connected to the fifth port 635, the second port 632 is connected to the third port 633, and the fourth port 634 is closed to shut down the third port 51 (so that the third port is closed).

[0193] Therefore, compressor 61 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant enters the reversing assembly 63 through the compressor 61's exhaust port 611 and the first port 631, and then flows to the heat exchanger assembly 200 through the fifth port 635. The heat exchanger assembly 200 can exchange heat with the external environment and dissipate heat through condensation. The refrigerant flows within the heat exchanger assembly 200 and releases heat to the external environment, thus changing from a gaseous state to a liquid state. The high-pressure liquid refrigerant flowing out of the heat exchanger assembly 200 then flows to the throttling device 64, which reduces the refrigerant pressure, allowing the low-pressure liquid refrigerant to flow into the indoor heat exchanger 62. The indoor heat exchanger 62 absorbs heat. The refrigerant is heated and vaporized within the indoor heat exchanger 62, changing from a liquid state to a gaseous state, thereby carrying away the heat from the airflow flowing over the surface of the indoor heat exchanger 62. The low-temperature airflow is then delivered into the room by the indoor unit of the air conditioner to achieve the purpose of cooling. Meanwhile, the low-pressure gaseous refrigerant flows to the second port 632 of the reversing component 63, and from the third port 633 to the return port 612 to return to the compressor 61 for compression again, thereby forming a refrigerant cycle and achieving the cooling effect of the air conditioning system 300.

[0194] In this process, refrigerant flows into the heat exchanger assembly 200 from the first port 11. At this time, the flow-blocking component 2 is not conductive. The refrigerant enters the heat exchange tube 41 of the first flow path 42 from the first connecting hole 13, then enters the heat exchange tube 41 of the second flow path 43 from the first flow path 42, then enters the body part 1 from the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 from the second port 12. The refrigerant first enters the heat exchange tube 41 of the first flow path 42 from the first connecting hole 13, and after being collected, it enters the heat exchange tube 41 of the second flow path 43. This can further reduce the temperature of the refrigerant and increase its subcooling, thereby forming a subcooling tube design for the condenser and better enhancing the heat exchange efficiency of the heat exchanger assembly 200.

[0195] Similarly, such as Figure 6 As shown in the example, when the air conditioning system 300 is in heating mode, the reversing component 63 is in the second switching state. The first port 631 of the reversing component 63 is connected to the second port 632, the third port 633 is connected to the fourth port 634, and the fifth port 635 is cut off so that the first port 11 is cut off.

[0196] Therefore, compressor 61 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant enters the reversing assembly 63 through the compressor 61's exhaust port 611 and the first port 631, and then flows to the indoor heat exchanger 62 through the second port 632. The indoor heat exchanger 62 can exchange heat with the airflow flowing over its surface. The airflow absorbs heat, and the refrigerant condenses and dissipates heat. The high-temperature airflow is sent into the room by the indoor unit of the air conditioner to achieve the purpose of heating. The refrigerant flows in the indoor heat exchanger 62 and releases heat into the indoor environment, thus changing from a gaseous state to a liquid state. The high-pressure liquid refrigerant flowing out of the indoor heat exchanger 62 then flows to the throttling device 64. The throttling device 64 can throttle the flow, reduce the pressure of the refrigerant, and allow the low-pressure liquid refrigerant to flow into the heat exchanger assembly 200. The heat exchanger assembly 200 can absorb heat. The refrigerant absorbs heat and vaporizes in the heat exchanger assembly 200, changing from a liquid state to a gaseous state, thereby carrying away the heat flowing through the outdoor environment. The low-pressure gaseous refrigerant flows to the fourth port 634 of the reversing assembly 63, and from the third port 633 to the return port 612 to return to the compressor 61 for compression again, thus forming a refrigerant cycle and achieving the heating effect of the air conditioning system 300.

[0197] In this process, refrigerant flows into the heat exchanger assembly 200 from the second port 12. At this time, the flow-blocking component 2 is open, and part of the refrigerant enters the heat exchange tube 41 of the second flow path 43 from the second connecting hole 14. Another part of the refrigerant passes through the flow-blocking component 2 in the body part 1, and then enters the heat exchange tube 41 of the first flow path 42 through the first connecting hole 13. The refrigerant from multiple flow paths is collected and flows out of the heat exchanger assembly 200 and flows to the fourth port 634 of the reversing component 63. By cooperating with the flow-diverting component 100 and the heat exchange tube 41 body, a multi-flow-path heat exchange pattern can be formed, thereby improving the heat exchange efficiency of the heat exchanger assembly 200.

[0198] By setting up the reversing assembly 63, the flow path of the air conditioning system 300 can be automatically switched without changing any components. This allows the refrigerant to automatically switch its flow direction within the reversing assembly 63, thereby enabling the air conditioning system 300 to automatically switch between cooling and heating modes to meet the needs of various environmental conditions. Furthermore, no manual adjustment is required, greatly improving the convenience and efficiency of operation, thus enhancing the reliability and efficiency of the air conditioning system 300 and ultimately improving user comfort.

[0199] By adding a flow-blocking component 2 to the flow distribution assembly 100, the flow-blocking component 2 automatically opens, closes, or cuts off the flow based on the pressure difference of the refrigerant on both sides. This allows for automatic flow guidance of the refrigerant by the flow-blocking component 2, changing the flow direction of the refrigerant. In different modes of the air conditioning system 300, automatic switching of the refrigerant's flow path within the heat exchanger assembly 200 can be achieved, improving the heat exchange efficiency of the heat exchanger assembly 200, enhancing the cooling or heating performance of the air conditioning system 300, and improving energy efficiency. Furthermore, no other control structure is required, making it less susceptible to power failures, and the structure is simple, easy to implement, and low in cost.

[0200] Furthermore, the first connecting hole 13 is connected to one end of at least one first flow path 42, and the second connecting hole 14 is connected to one end of at least one second flow path 43. The heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4, and the heat exchange tubes 41 on the first flow path 42 near the first connecting hole 13 and the heat exchange tubes 41 on the second flow path 43 near the second connecting hole 14 are located on opposite sides of the thickness direction of the heat exchanger body 4.

[0201] It is understandable that the refrigerant flows in the same direction within the heat exchanger body 4 along its thickness. This facilitates the setting of the position and orientation of the heat exchanger assembly 200 and the control of the flow direction of the airflow exchanging heat with the heat exchanger assembly 200, ensuring that the flow direction of the airflow exchanging heat with the heat exchanger assembly 200 is opposite to the flow direction of the refrigerant within the heat exchanger body 4. This facilitates a counter-flow arrangement of the refrigerant and the heat exchange airflow. This counter-flow arrangement allows the refrigerant and the heat exchange airflow to maintain a large temperature difference on the heat exchange tube 41, thereby maximizing heat exchange efficiency. This effectively improves the heat exchange efficiency of the heat exchanger assembly 200. When the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the cooling or heating performance of the air conditioning system 300 and increase energy efficiency.

[0202] According to the embodiment of the present invention, the air conditioning system 300 includes the heat exchanger assembly 200 and the manifold assembly 5. The main pipe 52 has a third port 51. There are multiple branch pipes 53, one end of which is connected to the main pipe 52. The inner diameter of the main pipe 52 is greater than or equal to the inner diameter of the branch pipe 53. When the inner diameter of the main pipe 52 is equal to the inner diameter of the branch pipe 53, the inner diameter of the main pipe 52 is equal to the inner diameter of the heat exchange tube 41. While keeping the inner diameter of the branch pipe 53 unchanged, that is, keeping the inner diameter of the heat exchange tube 41 unchanged, the inner diameter of the main pipe 52 is reduced, thereby reducing the material, weight and cost of the main pipe 52. This is beneficial to the economy and lightweight design of the manifold assembly 5, which in turn is beneficial to the economy and lightweight design of the heat exchanger assembly 200. On the other hand, the heat exchange efficiency of the heat exchanger assembly 200 is guaranteed.

[0203] In some embodiments, such as Figure 7 and Figure 8As shown, the reversing assembly 63 includes a five-way valve 636 and a pilot valve 637. The five-way valve 636 has a first port 631, a second port 632, a third port 633, a fourth port 634, and a fifth port 635 disposed on the five-way valve 636. The pilot valve 637 is used to control the connection between the first port 631 and the fifth port 635 and the connection between the second port 632 and the third port 633, or to control the connection between the first port 631 and the second port 632 and the connection between the third port 633 and the fourth port 634.

[0204] The following describes an air conditioner according to an embodiment of the present invention.

[0205] The air conditioner according to an embodiment of the present invention includes the air conditioning system 300 described above.

[0206] According to the embodiment of the present invention, the air conditioner includes the above-mentioned air conditioning system 300, heat exchanger assembly 200, and manifold 5. The main pipe 52 has a third port 51. There are multiple branch pipes 53, one end of which is connected to the main pipe 52. The inner diameter of the main pipe 52 is greater than or equal to the inner diameter of the branch pipe 53. When the inner diameter of the main pipe 52 is equal to the inner diameter of the branch pipe 53, the inner diameter of the main pipe 52 is equal to the inner diameter of the heat exchange tube 41. While keeping the inner diameter of the branch pipe 53 unchanged, that is, keeping the inner diameter of the heat exchange tube 41 unchanged, the inner diameter of the main pipe 52 is reduced, thereby reducing the material, weight and cost of the main pipe 52. This is beneficial to the economy and lightweight design of the manifold 5, which in turn is beneficial to the economy and lightweight design of the heat exchanger assembly 200. On the other hand, the heat exchange efficiency of the heat exchanger assembly 200 is guaranteed.

[0207] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0208] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A manifold assembly for a heat exchanger assembly, characterized in that, include: The main pipe has a third port; Branch pipes, wherein there are multiple branch pipes, one end of each branch pipe is connected to the main pipe, the inner diameter of the main pipe is greater than or equal to the inner diameter of each branch pipe, and the ratio of the inner diameter of the main pipe to the inner diameter of each branch pipe is 1:1-9:5; and / or The outer diameter of the main pipe is greater than or equal to the outer diameter of the branch pipe, and the ratio of the outer diameter of the main pipe to the outer diameter of the branch pipe is 1:1-9:5; and / or The outer diameter of the main pipe is 6.5mm-12.8mm, and the outer diameter of the branch pipe is 4.5mm-7.5mm; When the heat exchanger assembly is used as an evaporator, the refrigerant that has exchanged heat through the heat exchanger assembly flows into the main pipe through the multiple branch pipes and flows out of the heat exchanger assembly from the main pipe through the third port. When the heat exchanger assembly is used as a condenser, the refrigerant that has undergone heat exchange in a portion of the heat exchanger assembly flows into the main pipe through a portion of the multiple branch pipes, and flows from the main pipe through another portion of the branch pipes to another portion of the heat exchanger assembly, with the third port being closed.

2. The current collection component according to claim 1, characterized in that, The branch pipe is connected to the main pipe via a second tee pipe, the inner diameter of which is greater than or equal to the outer diameter of the main pipe; and / or The ratio of the inner diameter of the main pipe to the inner diameter of the branch pipe is 1:1-9:7; and / or The ratio of the outer diameter of the main pipe to the outer diameter of the branch pipe is 1:1-9:7; and / or The outer diameter of the main pipe is 6.5mm-9.8mm, and the outer diameter of the branch pipe is 4.5mm-7.5mm.

3. The current collection component according to claim 1, characterized in that, Also includes: A manifold, one end of which is connected to the main pipe and the other end of which is connected to multiple branch pipes.

4. The current collection component according to claim 1, characterized in that, The plurality of branch pipes include at least one third branch pipe and at least one fourth branch pipe, the third branch pipe and the fourth branch pipe being arranged at intervals along the length of the main pipe, and the current collection assembly having a first state and a second state. In the first state, the refrigerant enters the main pipe from the third branch pipe and flows out from the fourth branch pipe, while the third port is shut off; In the second state, refrigerant enters the main pipe from the third branch pipe and the fourth branch pipe, and flows out from the third port.

5. The current collection component according to claim 4, characterized in that, On a projection plane perpendicular to the axis of the main pipe, the third branch pipe and the fourth branch pipe are spaced apart or at an angle.

6. The current collection component according to claim 1, characterized in that, One end of the main pipe along its length is open to form the third port, or the third port is located on the peripheral wall of the main pipe and is connected to an extension pipe.

7. The current collector component according to claim 6, characterized in that, The extension tube is U-shaped or inverted U-shaped.

8. A heat exchanger assembly, characterized in that, include: A heat exchanger body having heat exchange tubes, wherein a plurality of heat exchange tubes form at least one first flow path and at least one second flow path; According to any one of claims 1-7, the plurality of branch pipes include at least one third branch pipe and at least one fourth branch pipe, the third branch pipe being connected to the first flow path and the fourth branch pipe being connected to the second flow path; The flow-diverting assembly includes a body and a flow-blocking component. The body has a first port, a second port, a first connecting hole, and a second connecting hole. The first connecting hole is connected to at least one end of the first flow path away from the third branch pipe, and the second connecting hole is connected to at least one end of the second flow path away from the fourth branch pipe. The flow-blocking component is disposed on the body. Along the length direction of the body, the first port and the first connecting hole are located on the same side of the flow-blocking component, and the second port and the second connecting hole are located on the same side of the flow-blocking component. The first port and the second port are located on opposite sides of the flow-blocking component. The flow-blocking component only allows refrigerant to flow from the second port side to the first connecting hole side.

9. The heat exchanger assembly according to claim 8, characterized in that, The main body includes a manifold, which comprises a first manifold and a second manifold. The first port and the first connecting hole are disposed on the first manifold, and the second port and the second connecting hole are disposed on the second manifold. The first manifold and the second manifold are integral components, and the flow-blocking component is disposed inside the first manifold or the second manifold; Alternatively, the first manifold and the second manifold may be separate components, with the flow-blocking component connected between the first manifold and the second manifold.

10. The heat exchanger assembly according to claim 9, characterized in that, The inner diameter of the first manifold is less than or equal to the inner diameter of the second manifold.

11. The heat exchanger assembly according to claim 9, characterized in that, The first connecting hole is one or multiple holes spaced apart along the length of the first manifold. And / or, the second connecting hole is one or a plurality of holes spaced apart along the length of the second manifold.

12. The heat exchanger assembly according to claim 8, characterized in that, The main body includes a connecting pipe and a distributor. The flow-blocking component is disposed on the connecting pipe. The second port and the second connecting hole are connected to the connecting pipe. At least one of the second port and the second connecting hole is connected to one end of the connecting pipe. The distributor has a main interface and a plurality of distributing holes. The main interface is connected to the other end of the connecting pipe. At least some of the distributing holes are the first connecting holes.

13. The heat exchanger assembly according to any one of claims 8-12, characterized in that, Also includes: The first branch pipe is connected between the first connecting hole and the first flow path; And / or, a second branch pipe, the second connection and the second flow path are connected by the second branch pipe.

14. The heat exchanger assembly according to claim 13, characterized in that, The inner diameter of the second branch pipe is less than or equal to the inner diameter of the first branch pipe; and / or The area of ​​the second connecting hole is smaller than the area of ​​the first connecting hole.

15. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The first port is formed by opening one end of the main body on the side of the flow-blocking component away from the second port along its length. Alternatively, the first port may be located on the peripheral wall of the main body.

16. The heat exchanger assembly according to any one of claims 8-12, characterized in that, Also includes: An air intake pipe, one end of which is connected to the first port.

17. The heat exchanger assembly according to claim 16, characterized in that, The intake pipe is U-shaped or inverted U-shaped.

18. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The second port is formed by opening one end of the main body on the side of the flow-blocking component away from the first port along its length. Alternatively, the second port may be located on the peripheral wall of the main body.

19. The heat exchanger assembly according to any one of claims 8-12, characterized in that, Also includes: An inlet / outlet pipe, one end of which is connected to the second port.

20. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The flow-blocking component is a one-way valve, a solenoid valve, or a baffle.

21. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. Both the first flow path and the second flow path include multiple rows of the heat exchange tubes. The heat exchange tubes in the first flow path connected to the first connecting hole and the heat exchange tubes in the second flow path connected to the second connecting hole are located on opposite sides of the thickness direction of the heat exchanger body or in different rows.

22. The heat exchanger assembly according to claim 21, characterized in that, The heat exchange tubes of the first flow path connected to the first connecting hole are located in a row on the leeward side of the heat exchanger body, and the heat exchange tubes of the second flow path connected to the second connecting hole are located in a row on the windward side of the heat exchanger body.

23. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. Both the first flow path and the second flow path include multiple rows of the heat exchange tubes. The heat exchange tubes in the first flow path connected to the third branch pipe and the heat exchange tubes in the second flow path connected to the fourth branch pipe are located on opposite sides of the thickness direction of the heat exchanger body or in different rows.

24. The heat exchanger assembly according to claim 23, characterized in that, The heat exchange tubes of the first flow path connected to the third branch pipe are located in a row on the windward side of the heat exchanger body, and the heat exchange tubes of the second flow path connected to the fourth branch pipe are located in a row on the leeward side of the heat exchanger body.

25. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. The first flow path includes a row of windward heat exchange tubes located on the windward side of the heat exchanger body and a row of leeward heat exchange tubes located on the leeward side of the heat exchanger body. When the heat exchanger assembly is used as a condenser and as an evaporator, the refrigerant flowing into the first flow path first flows through the leeward heat exchange tubes and then through the windward heat exchange tubes. And / or, the heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body, and the second flow path includes a row of windward heat exchange tubes located on the windward side of the heat exchanger body and a row of leeward heat exchange tubes located on the leeward side of the heat exchanger body. When the heat exchanger assembly is used as an evaporator, the refrigerant flowing into the second flow path first flows through the windward heat exchange tubes and then through the leeward heat exchange tubes. When the heat exchanger assembly is used as a condenser, the refrigerant flowing into the second flow path first flows through the leeward heat exchange tubes and then through the windward heat exchange tubes.

26. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The flow collection assembly and the flow splitting assembly are located on the same side along the length of the heat exchanger body.

27. The heat exchanger assembly according to any one of claims 8-12, characterized in that, When the heat exchanger assembly is used as an evaporator, the refrigerant flows into the heat exchanger assembly from the second port, the first connecting hole and the second connecting hole, and after heat exchange, it flows out of the heat exchanger assembly from the third port after passing through the branch pipe and the main pipe in sequence. The flow-blocking component is open and the first port is closed. When the heat exchanger assembly is used as a condenser, the refrigerant flows into part of the heat exchanger assembly from the first port through the first connecting hole for heat exchange, and then flows into another part of the heat exchanger assembly from part of the branch pipe, the main pipe, and another part of the branch pipe for heat exchange in sequence, and flows out of the heat exchanger assembly through the second connecting hole and the second port in sequence, with the flow-blocking component and the third port both being shut off.

28. The heat exchanger assembly according to claim 27, characterized in that, The number of the first connecting holes is multiple. When the heat exchanger assembly is used as an evaporator and when the heat exchanger assembly is used as a condenser, the multiple first connecting holes are used to distribute the refrigerant; and / or, the multiple first connecting holes are located above or diagonally above the flow-blocking component, and the multiple first connecting holes face horizontally, upward or diagonally upward.

29. The heat exchanger assembly according to any one of claims 8-12, characterized in that, The first flow path is located above the second flow path; and / or The air volume or average wind speed flowing through the first flow path is greater than the air volume or average wind speed flowing through the second flow path.

30. An air conditioning system, characterized in that, include: The compressor has an exhaust port and an exhaust port; Indoor heat exchanger; The heat exchanger assembly according to any one of claims 8-29, wherein one end of the indoor heat exchanger is connected to the second port; A reversing assembly having a first port, a second port, a third port, a fourth port, and a fifth port, wherein the first port is connected to the exhaust port, the third port is connected to the return port, the second port is connected to the other end of the indoor heat exchanger, the fourth port is connected to the third port, and the fifth port is connected to the first port; the reversing assembly has a first switching state and a second switching state. When the commutation component is in the first switching state, the first port is connected to the fifth port, the second port is connected to the third port, and the fourth port is cut off; When the commutation component is in the second switching state, the first port is connected to the second port, the third port is connected to the fourth port, and the fifth port is cut off.

31. An air conditioner, characterized in that, include: The air conditioning system according to claim 30.

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