Splitting assembly, heat exchanger assembly, air conditioning system and air conditioner

Abstract

The utility model discloses a shunt subassembly, heat exchanger subassembly, air conditioning system and air conditioner, the shunt subassembly includes: the body part, the body part has first port, second port, first through -hole and second through -hole, and the body part includes the through pipe and distributor, and the distributor forms with a plurality of first through -hole, and the distributor is connected a plurality of first branch pipe through a plurality of first through -hole, the flow resistance part is located on the through pipe, along the length direction of through pipe, and first port and first through -hole are located the same side of flow resistance part, and second port and second through -hole are located the same side of flow resistance part, and first port and second port are located the opposite side of flow resistance part, and flow resistance part only allows the refrigerant from second port side to first through -hole side. According to the shunt subassembly of the utility model, change the flow direction of refrigerant, and realize the even distribution of flow between a plurality of first branch pipe communicated with shunt part.

Description

Technical Field

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

[0002] In related technologies, the heat exchanger flow path design of an air conditioning system directly affects its performance. During cooling and heating processes, the outdoor heat exchanger acts as both a condenser and an evaporator, respectively. During these processes, the refrigerant undergoes evaporation (absorbing heat) and cooling (condensing heat) within the outdoor heat exchanger. Given a fixed area and volume of the outdoor heat exchanger, its optimal heat exchange flow path differs depending on whether it functions as a condenser or an evaporator. Current air conditioning systems use a single flow path for the outdoor heat exchanger, which cannot be adaptively adjusted according to the system's operating mode, thus affecting the heat exchange efficiency of the outdoor heat exchanger and the overall performance of the air conditioning system. 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 flow-diverting component that can change the flow path of the refrigerant, enabling automatic switching of different flow paths of the refrigerant within the heat exchanger assembly under different modes of the air conditioning system, thereby improving the heat exchange efficiency of the heat exchanger assembly and the performance of the air conditioning system.

[0004] This utility model also proposes a heat exchanger assembly, which includes the above-mentioned flow splitter assembly.

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

[0006] This utility model also proposes an air conditioner, wherein the air conditioning system includes the air conditioning system described above.

[0007] A flow-diverting assembly according to an embodiment of the present invention includes: a body portion having a first port, a second port, a first connecting hole, and a second connecting hole; the body portion including a connecting pipe and a distributor; the distributor forming a plurality of first connecting holes; and a flow-blocking component disposed on the connecting pipe. Along the length direction of the connecting pipe, 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, and the flow-blocking component only allows refrigerant to flow from the second port. The refrigerant flows from one side of the outlet to the side of the first connecting hole; when the heat exchanger assembly is used as an evaporator, the refrigerant flows into the heat exchanger assembly from the second port, and then flows out of the heat exchanger assembly from the first connecting hole and the second connecting hole into the heat exchange tube or heat exchange channel of the heat exchanger assembly. The distributor is used to divert the liquid refrigerant, 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 the heat exchanger assembly from the first port, and then flows out of the heat exchanger assembly from the second connecting hole and the second port in sequence. The distributor is used to divert the gaseous refrigerant, and the flow-blocking component is closed.

[0008] According to the present invention, the flow-dividing component has a first port, a second port, a first connecting hole, and a second connecting hole in its main body. The main body includes a connecting pipe and a flow-blocking component on the connecting pipe, allowing the flow-blocking component to allow refrigerant to flow only from the second port to the first connecting hole. This enables automatic opening and closing or flow interception of the flow-blocking component, thereby automatically guiding the refrigerant and changing its flow direction. Simultaneously, the main body includes a distributor with multiple first connecting holes, connecting multiple first branch pipes. This achieves uniform flow distribution among the multiple first branch pipes connected to the distributor, ensuring consistent operating conditions and improving heat exchange stability. Furthermore, when the flow-dividing component is used in heat exchanger assemblies and air conditioning systems, it can automatically switch the refrigerant flow paths within the heat exchanger assembly when the heat exchanger assembly functions as an evaporator or condenser, thereby improving the heat exchange efficiency of the heat exchanger assembly, enhancing the cooling or heating performance of the air conditioning system, and increasing energy efficiency. Moreover, no other control structures are required, resulting in a simple, easy-to-implement, and low-cost structure.

[0009] In some embodiments of this utility model, the distributor has a main interface and multiple distribution holes, the main interface is connected to the connecting pipe, and at least some of the distribution holes are the first connecting holes.

[0010] In some embodiments of this utility model, each of the distribution holes is connected to the first branch pipe, and the first port is located on the connecting pipe between the distributor and the flow-blocking component.

[0011] In some embodiments of this utility model, the number of distribution holes is N, N-1 of the distribution holes are connected to the first branch pipe, and the remaining one distribution hole forms the first port.

[0012] In some embodiments of this utility model, along the length of the connecting pipe, the distance between the main interface and the outlet end of the flow-blocking component is 15mm-500mm; and / or along the length of the connecting pipe, the distance between the second connecting hole and the inlet end of the flow-blocking component is 15mm-100mm; and / or along the length of the connecting pipe, the distance between the second connecting hole and the inlet end of the flow-blocking component is less than the distance between the main interface and the outlet end of the flow-blocking component.

[0013] In some embodiments of this utility model, at least one second branch pipe is connected to the second connecting hole.

[0014] 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.

[0015] In some embodiments of this utility model, it further includes an air intake pipe, one end of which is connected to the first port.

[0016] In some embodiments of this utility model, the air intake pipe includes: a connecting pipe, which is connected in series with the communicating pipe; and an inlet pipe, one end of which is connected to the peripheral wall of the connecting pipe and communicates with the connecting pipe.

[0017] In some embodiments of this utility model, one end of the connecting pipe located on the side of the flow-blocking component away from the first port is open to form the second port; or, the second port is located on the peripheral wall of the main body.

[0018] In some embodiments of this utility model, it further includes: an extension tube, one end of which is connected to the second port.

[0019] In some embodiments of this utility model, in a projection plane perpendicular to the axis of the main body, the extension tube has at least one radial extension portion that extends obliquely along the radial direction of the connecting tube, and the angle between the radial extension portion closest to the second port and the first branch tube is B and satisfies: 15°≤B°≤225°.

[0020] In some embodiments of this utility model, the angle between the tangent of the axis of the extension tube and the second port and the axis of the connecting tube is C, and satisfies: 0°≤C°≤135°.

[0021] In some embodiments of this utility model, the flow-blocking component is a one-way valve, a solenoid valve, or a baffle.

[0022] In some embodiments of this utility model, the main body includes a diverter located at one end of the connecting pipe. The diverter has a first passage, a second passage, and a third passage. One end of the first passage, one end of the second passage, and one end of the third passage are interconnected. The other end of the first passage is connected to the inlet end of the flow-blocking component. The other end of the second passage is open to form a second port, and the other end of the third passage is open to form a second connecting hole. The resistance of fluid flowing from the second passage to the first passage is a first resistance, and the resistance of fluid flowing from the second passage to the third passage is a second resistance, wherein the second resistance is greater than the first resistance; or, the flow rate of fluid flowing from the second passage to the first passage is a first flow rate, and the flow rate of fluid flowing from the second passage to the third passage is a second flow rate, wherein the first flow rate is greater than the second flow rate.

[0023] In some embodiments of this utility model, the diverter has a diverting cavity, and one end of the first passage, one end of the second passage, and one end of the third passage are all connected to the diverting cavity.

[0024] In some embodiments of this utility model, the axes of the first path, the second path, and the third path extend along a straight line.

[0025] In some embodiments of this utility model, the second passage and the third passage are located on the same side of the splitter, and the first passage and the second passage are located on opposite sides of the splitter; and / or the opening of the second passage and the opening of the third passage face the same side, and the opening of the second passage and the opening of the first passage face opposite sides.

[0026] In some embodiments of this utility model, the axis of the second path is parallel to the axis of the third path, and the axis of the first path does not coincide with the axis of the second path.

[0027] In some embodiments of this utility model, the axis of the first passage is parallel to the axis of the second passage and is located between the axis of the second passage and the axis of the third passage.

[0028] In some embodiments of this utility model, there are multiple third channels, and the multiple third channels are spaced apart along the circumferential direction of the second channel, with the axis of the first channel coinciding with the axis of the second channel.

[0029] In some embodiments of this invention, the axis of the second path is parallel to the axis of the third path.

[0030] In some embodiments of this utility model, the axes of the first passage and the second passage coincide, and the axis of the third passage is perpendicular to the axis of the second passage; or the axes of the first passage and the second passage coincide, and the angle between the axis of the third passage and the axis of the second passage is smaller than the angle between the axis of the third passage and the axis of the first passage.

[0031] In some embodiments of this utility model, the inner diameter of the second passage is D2, the inner diameter of the third passage is D3, and D2 ≥ D3; and / or the inner diameter of the first passage is D1, the inner diameter of the third passage is D3, and D1 > D3; and / or the open end of the second passage is connected to an extension pipe, the open end of the third passage is connected to a second branch pipe, and the inner diameter of the extension pipe is greater than or equal to the inner diameter of the second branch pipe; and / or the open end of the first passage is connected to a connecting pipe, and the inner diameter of the connecting pipe is greater than the inner diameter of the second branch pipe; and / or the open end of the first passage is connected to a connecting pipe, the open end of the second passage is connected to an extension pipe, and the inner diameter of the connecting pipe is greater than or equal to the inner diameter of the extension pipe.

[0032] In some embodiments of this utility model, the open end of the third passage is connected to a second branch pipe, the minimum cross-sectional inner diameter of the second branch pipe is D0, and satisfies: D0≤D3.

[0033] In some embodiments of this utility model, the inner diameter of the third passage is D3, and satisfies: D3≥3mm.

[0034] In some embodiments of this utility model, 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 obliquely above the flow-blocking component, and the multiple first connecting holes face upward or obliquely upward; and / or, the distributor forms a flow-dividing cavity, a main interface and multiple first connecting holes, the main interface and the multiple first connecting holes are respectively located on opposite sides of the distributor, the multiple first connecting holes are connected to the flow-dividing cavity, the multiple first connecting holes face upward or obliquely upward, and the main interface is connected to the flow-dividing cavity and faces the multiple first connecting holes.

[0035] A heat exchanger assembly according to an embodiment of the present invention includes: a heat exchanger body having a plurality of heat exchange tubes forming a plurality of flow paths; a flow collector assembly disposed on one side of the heat exchanger body and communicating with the plurality of flow paths, the flow collector assembly having a third port; and a flow divider assembly, wherein a first connecting hole is communicating with at least one end of a flow path away from the flow collector assembly, and a second connecting hole is communicating with at least one end of a flow path away from the flow collector assembly.

[0036] According to the heat exchanger assembly of this utility model embodiment, a flow-diverting component is provided. By setting a flow-blocking component on the connecting pipe, and ensuring that the flow-blocking component only allows refrigerant to flow from the second port to the first connecting hole, the flow-blocking component can automatically open and close or cut off the flow, thereby achieving automatic flow guidance of the refrigerant and changing the flow direction of the refrigerant. Simultaneously, the main body includes a distributor with multiple first connecting holes. The distributor connects to multiple first branch pipes through these holes, thereby achieving uniform flow distribution among the multiple first branch pipes connected to the distributor, ensuring consistent operating conditions of the multiple first branch pipes and improving heat exchange stability. Furthermore, when the heat exchanger assembly functions as an evaporator or condenser, it enables automatic switching of different flow paths for the refrigerant within the heat exchanger assembly, thereby improving the heat exchange efficiency of the heat exchanger assembly, enhancing the cooling or heating performance of the air conditioning system, and improving energy efficiency. Moreover, no other control structures are required, resulting in a simple, easy-to-implement, and low-cost structure.

[0037] In some embodiments of this utility model, when the heat exchanger assembly functions as an evaporator, refrigerant flows into the heat exchanger assembly from the second port, and then flows into the heat exchange tube of the heat exchanger assembly from the first and second connecting holes before flowing out of the heat exchanger assembly from the third port. The distributor is used to divert liquid refrigerant, the flow-blocking component is open, and the first port is closed. When the heat exchanger assembly functions as a condenser, refrigerant flows into the heat exchanger assembly from the first port, and then flows into the heat exchange tube of the heat exchanger assembly from the first connecting hole before flowing out of the heat exchanger assembly from the second connecting hole and the second port in sequence. The distributor is used to divert gaseous refrigerant, and both the flow-blocking component and the third port are closed.

[0038] 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, and the multiple heat exchange tubes form at least one first flow path and at least one second flow path. 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.

[0039] 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.

[0040] 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, and the multiple heat exchange tubes form at least one first flow path and at least one second flow path. 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 Alternatively, the heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. 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.

[0041] 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.

[0042] 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.

[0043] 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 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.

[0044] According to an embodiment of the present invention, an air conditioning system is provided with a heat exchanger assembly. The main body has a first port, a second port, a first connecting hole, and a second connecting hole. The main body includes a connecting pipe and a flow-blocking component on the connecting pipe, allowing refrigerant to flow only from the second port to the first connecting hole. This enables automatic opening and closing or flow blocking of the flow-blocking component, thus automatically guiding the refrigerant and changing its flow direction. Simultaneously, the main body includes a distributor with multiple first connecting holes. The distributor connects to multiple first branch pipes through these holes, achieving uniform flow distribution among the multiple first branch pipes connected to the distributor, ensuring consistent operating conditions and improving heat exchange stability. Furthermore, when the flow-splitting component is used in the heat exchanger assembly and the air conditioning system, it can automatically switch the refrigerant flow paths within the heat exchanger assembly when the heat exchanger assembly functions as an evaporator or condenser, thereby improving the heat exchange efficiency of the heat exchanger assembly, enhancing the cooling or heating performance of the air conditioning system, and increasing energy efficiency. Moreover, no other control structures are required, resulting in a simple, easy-to-implement, and low-cost structure.

[0045] The air conditioner according to an embodiment of the present invention includes the air conditioning system described above.

[0046] According to an embodiment of the present invention, an air conditioning system is provided. The system includes a main body with a first port, a second port, a first connecting hole, and a second connecting hole. The main body includes a connecting pipe and a flow-blocking component on the connecting pipe, allowing refrigerant to flow only from the second port to the first connecting hole. This enables automatic opening and closing or flow interception of the flow-blocking component, thus automatically guiding the refrigerant and changing its flow direction. Simultaneously, the main body includes a distributor with multiple first connecting holes. The distributor connects to multiple first branch pipes through these holes, achieving uniform flow distribution among the multiple first branch pipes connected to the distributor, ensuring consistent operating conditions and improving heat exchange stability. Furthermore, when the flow-dividing component is used in a heat exchanger assembly and an air conditioning system, it can automatically switch the refrigerant flow path within the heat exchanger assembly when the heat exchanger assembly functions as an evaporator or condenser, thereby improving the heat exchange efficiency of the heat exchanger assembly, enhancing the cooling or heating performance of the air conditioning system, and increasing energy efficiency. Moreover, no other control structures are required, resulting in a simple, easy-to-implement, and low-cost structure.

[0047] 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

[0048] 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:

[0049] Figure 1 This is a schematic diagram of the structure of the shunt component according to an embodiment of the present utility model;

[0050] Figure 2 This is a schematic diagram of the structure of a current shunt component according to another embodiment of the present invention;

[0051] Figure 3 This is a top view of a diversion assembly according to an embodiment of the present utility model, wherein the extension tube is shown to be disposed on the lower side of the main body.

[0052] Figure 4 This is a perspective view of a diversion assembly according to an embodiment of the present utility model, wherein the extension tube is shown to be disposed on the lower side of the main body.

[0053] Figure 5 This is a flow path diagram of a heat exchanger assembly according to an embodiment of the present utility model;

[0054] Figure 6 This is a schematic diagram of the structure of a heat exchanger assembly according to an embodiment of the present utility model;

[0055] Figure 7 This is a schematic diagram of the structure of an air conditioning system according to an embodiment of the present utility model, wherein the air conditioning system is in cooling mode;

[0056] 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;

[0057] Figure 9 This is a schematic diagram of the structure of a current splitter assembly according to another embodiment of the present invention;

[0058] Figure 10 yes Figure 9 Enlarged view at point M;

[0059] Figure 11 This is a schematic diagram of the flow direction of the splitter, extension pipe and second branch pipe according to an embodiment of the present utility model;

[0060] Figure 12 This is a schematic diagram of the structure of a shunt according to another embodiment of the present invention;

[0061] Figure 13 This is a schematic diagram of the structure of a shunt according to another embodiment of the present invention;

[0062] Figure 14 This is a schematic diagram of the structure of the splitter, extension tube, and second branch tube according to another embodiment of the present invention;

[0063] Figure 15 yes Figure 9A partial exploded view.

[0064] Figure label:

[0065] 100. Distributor components;

[0066] 1. Body; 101. Connecting pipe; 11. First port; 12. Second port; 13. First connecting hole; 14. Second connecting hole; 71. Distributor; 711. Main interface; 712. Distribution hole;

[0067] 2. Flow-blocking components;

[0068] 31. First branch pipe; 32. Second branch pipe; 33. Inlet pipe; 331. Connecting pipe; 332. Inlet pipe; 34. Extension pipe;

[0069] 8. Flow divider; 81. First passage; 82. Second passage; 83. Third passage; 84. Flow divider cavity;

[0070] 200. Heat exchanger assembly;

[0071] 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;

[0072] 5. Flow collection component; 51. Third port;

[0073] 300. Air conditioning system;

[0074] 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

[0075] 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.

[0076] 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.

[0077] 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.

[0078] The shunt assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0079] like Figure 1 and Figure 2 As shown, a flow diversion component 100 according to an embodiment of the present invention includes a main body 1 and a flow blocking component 2.

[0080] Specifically, such as Figure 1 and Figure 2 As shown, combined with Figure 5 and Figure 6 The main body 1 has a first port 11, a second port 12, a first connecting hole 13, and a second connecting hole 14. The main body 1 includes a connecting pipe 101 and a distributor 71. The distributor 71 has a plurality of first connecting holes 13. The distributor 71 is connected to a plurality of first branch pipes 31 through the plurality of first connecting holes 13. A flow-blocking component 2 is provided on the connecting pipe 101. Along the length direction of the connecting pipe 101, 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. 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 13 side.

[0081] It is understood that the connecting pipe 101 has a main channel, and the first port 11, the second port 12, the first connecting hole 13, and the second connecting hole 14 are all connected to the main channel. Refrigerant flows in the main channel.

[0082] The distributor 71 has multiple first connecting holes 13, which connect to multiple first branch pipes 31. The first branch pipes 31 can be used to indirectly connect the connecting pipe 101 to the heat exchange tubes 41 of the heat exchanger assembly 200, thereby reducing the difficulty of connecting the flow distribution assembly 100 to the heat exchange tubes 41, lowering the probability of refrigerant leakage, and ensuring the normal operation of the heat exchanger assembly 200. Specifically, the distributor 71 is used to distribute gas when the flow distribution assembly 100 is used as a gas pipe, and to distribute liquid when the flow distribution assembly 100 is used as a liquid pipe, to achieve uniform flow distribution among the multiple first branch pipes 31 connected to the distributor 71, thus ensuring consistent operating conditions of the multiple first branch pipes 31 and improving heat exchange stability.

[0083] In a specific example, such as Figure 1 and Figure 2 As shown, the first connecting hole 13 and the second connecting hole 14 are both provided on the peripheral wall of the connecting pipe 101 and are spaced apart along the length direction of the connecting pipe 101. The first port 11 and the second port 12 are respectively provided at both ends of the length direction of the connecting pipe 101, or the first port 11 and the second port 12 are both provided on the peripheral wall of the connecting pipe 101 and located on both sides of the flow-blocking component 2.

[0084] The flow-blocking component 2 is unidirectional. It only opens when the pressure on the side of the flow-blocking component 2 near the second port 12 is greater than the pressure on the side of the flow-blocking component 2 near the first port 11, allowing refrigerant to flow from the second port 12 to the first connecting hole 13. When refrigerant enters the connecting pipe 101 from the second port 12, the flow-blocking component 2 is open, and some refrigerant flows from the second port 12 to the second connecting hole 14, while some refrigerant flows through the flow-blocking component 2 to the first connecting hole 13. When refrigerant enters the connecting pipe 101 from the first port 11, the flow-blocking component 2 is not open, and 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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 flow-blocking component 2 is used in the heat exchanger assembly 200 and 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.

[0094] According to the present invention, the flow distribution assembly 100 has a first port 11, a second port 12, a first connecting hole 13, and a second connecting hole 14 in its main body 1. The main body 1 includes a connecting pipe 101 and a flow-blocking component 2 on the connecting pipe 101, allowing the flow-blocking component 2 to only allow refrigerant to flow from the second port 12 to the first connecting hole 13. This enables the automatic opening and closing or flow blocking of the flow-blocking component 2, thereby achieving automatic flow guidance of the refrigerant and changing the flow direction of the refrigerant. Simultaneously, the main body 1 includes a distributor 71, which has multiple first connecting holes 13. The distributor 71 connects to multiple first branch pipes 31 through these multiple first connecting holes 13, thereby achieving uniform flow distribution among the multiple first branch pipes 31 connected to the distributor 71, ensuring consistent operating conditions of the multiple first branch pipes 31 and improving heat exchange stability. Furthermore, when the flow distribution component 100 is used in the heat exchanger assembly 200 and the air conditioning system 300, it can automatically switch the refrigerant flow path within the heat exchanger assembly 200 when the heat exchanger assembly 200 acts as an evaporator or condenser. 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. Moreover, no other control structure is required, making the structure simple, easy to implement, and low-cost.

[0095] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the distributor 71 has a main interface 711 and a plurality of distribution holes 712. The main interface 711 is connected to the connecting pipe 101, and at least some of the distribution holes 712 are first connecting holes 13.

[0096] Therefore, the refrigerant can flow between the main interface 711 of the distributor 71 and the connecting pipe 101, so that the refrigerant in the main body 1 can be evenly distributed to the first branch pipe 31 connected to the distribution hole 712 via the distributor 71, thereby achieving uniform flow distribution through the distributor 71 and improving the heat exchange stability of the heat exchanger assembly 200 using the flow distribution component 100.

[0097] In addition, the distributor 71 only undertakes distribution and does not merge. After the refrigerant is distributed to each distribution hole 712 at the main interface 711, it directly enters the corresponding first branch pipe 31. There is no secondary mixing and backflow interference between branches, and the mixing loss and additional pressure drop are reduced. Pressure pulsation and flow-induced noise are suppressed. In both cooling and heating modes, the distribution stability and heat exchange efficiency can be improved.

[0098] In some embodiments of this invention, 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.

[0099] In a specific example, 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 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.

[0100] In some embodiments of this utility model, such as Figure 1 As shown, 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.

[0101] 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.

[0102] 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.

[0103] In some embodiments of this utility model, such as Figure 2 As shown, the number of distribution holes 712 is N, N-1 distribution holes 712 are connected to the first branch pipe 31, and the remaining distribution hole 712 forms the first port 11.

[0104] 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.

[0105] 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.

[0106] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, along the length of the connecting pipe 101, the distance between the main interface 711 and the outlet end of the flow-blocking component 2 is 15mm-500mm. It is understandable that if the distance between the first connecting hole 13 and the flow-blocking component 2 is too small, the welding / assembly interference between the distributor 71 and the flow-blocking component 2 on the connecting pipe 101 is likely to overlap, leading to a risk of leakage. Conversely, if the distance between the first connecting hole 13 connected to the distributor 71 and the flow-blocking component 2 is too large, the refrigerant entering the connecting pipe 101 from the second port 12 will not reach the first connecting hole 13 near the first port 11 after being conducted through the flow-blocking component 2, making timely replenishment difficult under low-flow conditions. Furthermore, the excessive size of the diversion component 100 leads to increased space occupation and cost.

[0107] Therefore, by limiting the distance between the first connecting hole 13 connected to the distributor 71 and the flow blocking component 2 to 15mm-500mm, the size of the flow distribution component 100 is reduced, while effectively avoiding problems such as assembly interference and unstable supply caused by insufficient pressure difference. This further ensures that the flow distribution component 100 distributes evenly, switches operating conditions smoothly, and improves energy efficiency and reliability.

[0108] It should be noted that, along the length of the connecting pipe 101, the distance between the first connecting hole 13 connected to the distributor 71 and the flow-blocking component 2 can be 15mm, 20mm, 30mm, 40mm, 50mm, 80mm, 100mm, 150mm, 200mm, 300mm, 400mm or 500mm.

[0109] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, along the length of the connecting pipe 101, the distance between the second connecting hole 14 and the inlet end of the flow-blocking component 2 is 15mm-100mm. It is understandable that if the distance between the second connecting hole 14 and the inlet end of the flow-blocking component 2 is too small, the welding / assembly interference between the second branch pipe 32 connected to the second connecting hole 14 and the flow-blocking component 2 on the connecting pipe 101 is likely to overlap, leading to a risk of leakage. Conversely, if the distance between the second connecting hole 14 and the inlet end of the flow-blocking component 2 is too large, the refrigerant entering the connecting pipe 101 from the second port 12 will flow insufficiently through the second connecting hole 14 to the second branch pipe 32 before flowing to the flow-blocking component 2, making timely replenishment difficult under low-flow conditions.

[0110] Therefore, the distance between the second connecting hole 14 and the inlet end of the flow blocking component 2 is 15mm-100mm. This reduces the size of the flow splitter 100 while effectively avoiding problems such as assembly interference and unstable supply caused by insufficient pressure difference. This further ensures that the flow splitter 100 distributes evenly, switches operating conditions smoothly, and improves energy efficiency and reliability.

[0111] It should be noted that, along the length of the connecting pipe 101, the distance between the second connecting hole 14 and the inlet end of the flow-blocking component 2 can be 15mm, 20mm, 30mm, 40mm, 50mm, 80mm or 100mm.

[0112] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, along the length of the connecting pipe 101, the distance between the second connecting hole 14 and the inlet end of the flow-blocking component 2 is less than the distance between the main interface 711 and the outlet end of the flow-blocking component 2.

[0113] It is understandable that the refrigerant entering the connecting pipe 101 from the second port 12 passes sequentially through the second connecting hole 14, the inlet end of the flow-blocking component 2, and the main interface 711, so that the refrigerant flows sequentially into the second branch pipe 32, the flow-blocking component 2, and the distributor 71. The distance between the second connecting hole 14 and the inlet end of the flow-blocking component 2 is less than the distance between the main interface 711 and the outlet end of the flow-blocking component 2, which effectively improves the problem of uneven flow distribution caused by the dynamic pressure of the refrigerant and further improves the flow distribution effect of the flow distribution component 100.

[0114] In some embodiments, the main body 1 and the flow-blocking component 2 are welded together, which can ensure the reliability and stability of the connection between the main body 1 and the flow-blocking component 2, reduce the impact of loose connection on the flow-diverting effect, extend the service life of the flow-diverting component 100, ensure the normal operation of the heat exchanger component 200 when the flow-diverting component 100 is applied to the heat exchanger component 200, and because the welded connection is stable and reliable, the connection cost and maintenance cost between the main body 1 and the flow-blocking component 2 can be relatively reduced.

[0115] 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.

[0116] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, at least one second branch pipe 32 is connected to the second connecting hole 14. It can be understood that the second branch pipe 32 is connected to the connecting pipe 101 and communicates with the second connecting hole 14. The second branch pipe 32 can be used to indirectly connect the connecting pipe 101 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.

[0117] 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.

[0118] It should be noted that the welding connection between the multiple second branch pipes 32 and the connecting pipe 101 can ensure the connection strength between the second branch pipes 32 and the connecting pipe 101, improve the structural strength of the flow distribution assembly 100, and ensure the reliability and stability of the flow distribution assembly 100. Furthermore, during the welding process, the weld metal fills the gap between the connecting pipe 101 and the second branch pipes 32, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0119] 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. When the refrigerant enters the connecting pipe 10 from the second port 12, the flow-blocking component 2 is opened, 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.

[0120] 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 branch pipe 32 section increases after the refrigerant flows into the connecting pipe 101 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.

[0121] In some embodiments of this utility model, the area of ​​the second connecting hole 14 is smaller than the area of ​​the first connecting hole 13, so that the inner diameter of the second branch pipe 32 is less than or equal to the inner diameter of the first branch pipe 31, thereby meeting the flow requirement of the first connecting hole 13. This can better achieve the flow splitting effect, improve the problem of uneven flow splitting caused by refrigerant dynamic pressure, and further improve the flow splitting effect of the flow splitting component 100.

[0122] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the flow distribution assembly 100 also includes an intake pipe 33, one end of which is connected to the first port 11. The intake pipe 33 is connected to the connecting pipe 101 and communicates with the first port 11. The arrangement of the intake pipe 33 facilitates the indirect connection between the connecting pipe 101 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, help reduce the probability of refrigerant leakage, and ensure the normal operation of the air conditioning system 300.

[0123] For example, when the air conditioning system 300 is in cooling mode, the heat exchanger assembly 200 acts as a condenser. 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 connecting pipe 101 from the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 from the second port 12.

[0124] 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. The other part of the refrigerant passes through the flow-blocking component 2 in the connecting pipe 101, 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 connecting pipe 101 is stored in the intake pipe 33 and does 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 as needed.

[0125] It should be noted that the intake pipe 33 is welded to the connecting pipe 101, which can ensure the connection strength between the intake pipe 33 and the connecting pipe 101, 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 connecting pipe 101 and the intake pipe 33, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0126] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the intake pipe 33 is U-shaped. When the refrigerant enters through the intake pipe 33, the U-shape allows the refrigerant to accelerate under centrifugal force, thereby increasing the refrigerant's flow momentum within the connecting pipe 101 and preventing refrigerant accumulation at the intake pipe 33. This improves 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 enhance energy efficiency.

[0127] In some embodiments of this utility model, such as Figure 2As shown, the intake pipe 33 includes a connecting pipe 331 and an inlet pipe 332. The connecting pipe 331 is connected in series with the connecting pipe 101, and one end of the inlet pipe 332 is connected to and communicates with the peripheral wall of the connecting pipe 331. Therefore, by connecting the connecting pipe 331 in series with the connecting pipe 101, direct openings in the thin-walled section of the connecting pipe 101 are avoided, improving structural strength and sealing reliability. Furthermore, the connecting pipe 331, as a transition section, straightens and buffers the laterally entering refrigerant, reducing vortices and impacts before entering the connecting pipe 101, and lowering additional pressure drop and flow-induced noise.

[0128] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the end of the connecting pipe 101 located on the side of the flow-blocking component 2 opposite to the first port 11 along its length is open to form a second port 12. Providing a second port 12 at one end of the connecting pipe 101 along its length results in a simple structure, convenient manufacturing, improved production efficiency, and reduced costs. Furthermore, the location of the second port 12 at the end of the connecting pipe 101 along its length facilitates installation and assembly, thereby improving assembly efficiency.

[0129] In some embodiments of this invention, the second port 12 is located on the peripheral wall of the connecting pipe 101. The refrigerant enters from the second port 12 located on the peripheral wall of the connecting pipe 101, which can form strong vortices, secondary flows and turbulence within the connecting pipe 101, making the refrigerant temperature more uniform and thus improving the convective heat transfer coefficient.

[0130] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the flow distribution assembly 100 also includes an extension pipe 34, one end of which is connected to the second port 12. The extension pipe 34 is connected to the connecting pipe 101 and also communicates with the second port 12. The extension pipe 34 facilitates indirect connection between the connecting pipe 101 and components such as throttling devices in the air conditioning system 300, which can relatively reduce the difficulty of connecting the flow distribution assembly 100 to other components, thereby reducing the probability of refrigerant leakage and ensuring the normal operation of the air conditioning system 300.

[0131] For example, when the air conditioning system 300 is in cooling mode, the heat exchanger assembly 200 acts as a condenser. 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 connecting pipe 101 from the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 from the extension pipe 34.

[0132] 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 extension pipe 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. The other part of the refrigerant passes through the flow-blocking component 2 in the connecting pipe 101 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.

[0133] It should be noted that the extension pipe 34 is welded to the connecting pipe 101, which can ensure the connection strength between the extension pipe 34 and the connecting pipe 101, 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 connecting pipe 101 and the extension pipe 34, forming a dense connection layer, which can effectively prevent refrigerant leakage.

[0134] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the extension pipe 34 is a U-shaped pipe. When the refrigerant enters through the extension pipe 34, the U-shaped extension pipe 34 can accelerate the refrigerant under the action of centrifugal force, thereby increasing the flow power of the refrigerant in the connecting pipe 101, preventing the refrigerant from accumulating at the extension pipe 34, and improving the flow distribution of the refrigerant in 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.

[0135] In some embodiments of this utility model, such as Figure 3 As shown, in a projection plane perpendicular to the axis of the main body 1, the extension tube 34 has at least one radial extension 341 that extends obliquely along the radial direction of the connecting tube 101. The angle between the radial extension 341 closest to the second port 12 and the first branch tube 31 is B and satisfies: 15°≤B°≤225°. For example, B° can be 15°, 45°, 50° or 225°, etc.

[0136] It is understandable that by having the radial extension 341 closest to the second port 12 and the first branch pipe 31 at an angle of B that satisfies 15°≤B°≤225°, there is sufficient spacing between the first branch pipe 31 and the extension pipe 34 in the circumferential direction of the main body 1, thereby avoiding installation interference between the first branch pipe 31 and the extension pipe 34.

[0137] In some embodiments of this utility model, such as Figure 4As shown, the angle between the tangent of the axis of the extension tube 34 connected to the second port 12 and the axis of the connecting tube 101 is C, and satisfies: 0°≤C°≤135°. For example, C° can be 0°, 40°, 50°, or 135°. It should be noted that the second port 12 can be located on the peripheral wall of the body part 1 or on the end face of the body part 1 in the axial direction, thereby meeting different connection requirements. The 0°≤C°≤135° setting facilitates the installation of the extension tube 34.

[0138] 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 in the connecting pipe 101 to flow from the second port 12 to the first connecting hole 13.

[0139] In some embodiments of this utility model, such as Figures 9-11 and Figure 15 As shown, the main body 1 includes a diverter 8 located at one end of the connecting pipe 101. The diverter 8 has a first passage 81, a second passage 82 and a third passage 83. One end of the first passage 81, one end of the second passage 82 and one end of the third passage 83 are connected to each other. The other end of the first passage 81 is connected to the inlet end of the flow-blocking component 2. The other end of the second passage 82 is open to form a second port 12, and the other end of the third passage 83 is open to form a second connecting hole 14.

[0140] The resistance to the fluid flowing from the second passage 82 to the first passage 81 is the first resistance, and the resistance to the fluid flowing from the second passage 82 to the third passage 83 is the second resistance. The second resistance is greater than the first resistance. Therefore, when the medium enters the distributor 8 through the second port 12, the medium first enters the distribution cavity 84, which is interconnected with the first passage 81, the second passage 82, and the third passage 83. Since the second resistance is greater than the first resistance, most of the medium enters the main body 1 through the second passage 82 and along the first passage 81, and flows to the first connecting hole 13 under the unidirectional guidance of the flow-blocking component 2. The remaining small portion of the medium flows to the second connecting hole 14 through the second passage 82 and along the third passage 83.

[0141] Alternatively, the flow rate of fluid from the second passage 82 to the first passage 81 is the first flow rate, and the flow rate of fluid from the second passage 82 to the third passage 83 is the second flow rate, where the first flow rate is greater than the second flow rate. Therefore, when the medium enters the distributor 8 through the second port 12, the medium first enters the distribution cavity 84, which connects the first passage 81, the second passage 82, and the third passage 83. Because the second resistance is greater than the first resistance, most of the medium flows through the second passage 82 and along the first passage 81 into the main body 1, and under the unidirectional guidance of the flow-blocking component 2, flows towards the first connecting hole 13. The remaining small portion of the medium flows through the second passage 82 and along the third passage 83 towards the second connecting hole 14.

[0142] Therefore, the resistance of the fluid flowing from the second passage 82 to the first passage 81 is the first resistance, and the resistance of the fluid flowing from the second passage 82 to the third passage 83 is the second resistance. The second resistance is greater than the first resistance, so that most of the medium entering the distributor 8 from the second passage 82 flows into the first connecting hole 13 through the first passage 81, and a small part of the medium flows into the second connecting hole 14 through the third passage 83. This ensures that the medium entering from the second port 12 is preferentially guided to the main body 1 and participates in heat exchange through the first connecting hole 13, ensuring a stable supply to the branch with the first connecting hole 13. This makes the flow path switching of the distributor 100 in the two modes of cooling / heating more stable, and the heat exchange efficiency and system energy efficiency are higher.

[0143] For example, when the flow distribution 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 flow collector assembly 5. The heat exchanger body 4 has a plurality of heat exchange tubes 41, which serve as channels for the flow of the medium. The flow collector 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 flow collector assembly 5. The flow distribution assembly 100 is located on the side of the heat exchanger body 4 away from the flow collector assembly 5, or the flow distribution assembly 100 and the flow collector assembly 5 are located on the same side of the heat exchanger body 4. The flow distribution assembly 100 communicates with the heat exchange tubes 41, and the medium is adapted to flow from one of the flow distribution assembly 100 and the flow collector assembly 5 to the other.

[0144] In some embodiments, the splitter 8 includes a splitter body, in which a first passage 81, a second passage 82 and a third passage 83 are formed. One end of the first passage 81, one end of the second passage 82 and one end of the third passage 83 are interconnected, and the other ends of the first passage 81, the second passage 82 and the third passage 83 are spaced apart or isolated from each other.

[0145] In other embodiments, the distributor 8 includes a distributor body and a refrigerant pipe at least partially inserted into the distributor body. The refrigerant pipe and the distributor body together form a first passage 81, a second passage 82, and a third passage 83, such that one end of the first passage 81, one end of the second passage 82, and one end of the third passage 83 are interconnected, and the other ends of the first passage 81, the second passage 82, and the third passage 83 are spaced apart or isolated from each other. The refrigerant pipe can be any one or more of the following: a piping, a manifold, a heat transfer pipe, an extension pipe 34, a second branch pipe 32, a second manifold 16, and a connecting pipe 101.

[0146] 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 medium cools and condenses within the heat exchanger assembly 200. The medium flows into the heat exchanger assembly 200, and at this time, the flow-blocking component 2 is not conductive. The medium enters the heat exchange tube 41 through the first connecting hole 13, the third port 51 is closed, and after being collected by the flow-collecting component 5, the medium re-enters the heat exchange tube 41. Then, it enters the main body 1 through the second connecting hole 14, and finally flows out of the heat exchanger assembly 200 through the second port 12. The medium entering the heat exchange tube 41 through the first connecting hole 13 and re-entering it after being collected by the flow-collecting component 5 can further reduce the temperature of the medium 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.

[0147] like Figure 8 As shown, when the air conditioning system 300 is in heating mode, the heat exchanger assembly 200 acts as an evaporator. The medium evaporates and absorbs heat in the heat exchanger assembly 200. The medium flows into the heat exchanger assembly 200 from the second port 12 and first flows into the distributor 8. At this time, the flow-blocking component 2 is open. The resistance of the fluid flowing from the second passage 82 to the first passage 81 is the first resistance, and the resistance of the fluid flowing from the second passage 82 to the third passage 83 is the second resistance. The second resistance is greater than the first resistance, so that most of the medium entering the distributor 8 from the second passage 82 flows into the body part 1 through the first passage 81 and into the first connecting hole 13 through the flow-blocking component 2. Then it enters the heat exchange tube 41 through the first connecting hole 13. A small part of the medium flows into the second connecting hole 14 through the third passage 83 and then into the heat exchange tube 41 through the first connecting hole 13. The third port 51 is open, and the medium in the heat exchange tube 41 flows out of the heat exchanger assembly 200 through the third port 51 after being collected by the collector component 5. By combining the flow splitter 100 with 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.

[0148] Therefore, most of the medium preferentially enters the first connecting hole 13 through the first passage 81, ensuring a stable and continuous supply to the evaporation circuit on one side of the main body 1. A small portion of the medium enters the second connecting hole 14 through the third passage 83, forming a supply branch parallel to the first connecting hole 13, reducing the risk of "gas / liquid starvation". At the same time, by guiding the flow ratio of "large flow through the first passage 81 and small flow through the third passage 83", the pressure pulsation in the distributor 8 and the impact on the flow-blocking component 2 can be weakened, reducing bypass short circuits and secondary mixing, stabilizing the flow and phase distribution on the evaporation side, thereby improving the average evaporation temperature and heat exchange utilization, reducing additional pressure drop and flow-induced noise, and improving the heat exchange efficiency and system energy efficiency under heating conditions.

[0149] Furthermore, in heating mode, the medium needs to pass through a subcooling pipe when entering a 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 medium does not need to pass through a subcooling pipe when entering the heat exchanger assembly 200, thus avoiding significant pressure loss.

[0150] In some embodiments of this utility model, such as Figures 9-11 As shown, the diverter 8 has a diverter cavity 84, with one end of the first passage 81, one end of the second passage 82, and one end of the third passage 83 all connected to the diverter cavity 84. It can be understood that since the other end of the first passage 81 is connected to the main body 1, the other end of the second passage 82 is open to form a second port 12, and the other end of the third passage 83 is open to form a second connecting hole 14. The diverter cavity 84 enables the connection of the first passage 81, the second passage 82, and the third passage 83, thereby enabling the connection of the main body 1, the second port 12, and the second connecting hole 14.

[0151] Meanwhile, the diversion cavity 84 serves as a common cavity for the first passage 81, the second passage 82, and the third passage 83. The medium entering through the second port 12 is first stabilized and rectified in the diversion cavity 84, and then enters the main body 1 through the first passage 81 according to the predetermined resistance matching relationship. Under the unidirectional conduction of the flow blocking component 2, it flows to the first connecting hole 13. A small amount of medium enters the second connecting hole 14 through the third passage 83 to form a replenishment branch.

[0152] In some embodiments of this utility model, such as Figure 11 and Figure 12As shown, the axes of the first passage 81, the second passage 82, and the third passage 83 extend in a straight line. This arrangement allows the medium entering the distributor 8 from the second port 12 to exit along the first passage 81 and the third passage 83 with fewer bends and lower local resistance, reducing separation and eddy currents within the distributor 8, thereby lowering additional pressure drop and noise. Simultaneously, the straight-line extension of the axes of the first passage 81, the second passage 82, and the third passage 83 allows for a more compact arrangement of the distributor 8, improves welding and sealing reliability, and reduces manufacturing and assembly difficulties.

[0153] In some embodiments of this utility model, such as Figure 11 and Figure 12 As shown, the second passage 82 and the third passage 83 are located on the same side of the distributor 8, while the first passage 81 and the second passage 82 are located on opposite sides of the distributor 8. Therefore, through the positional relationship of the first passage 81, the second passage 82, and the third passage 83, the resistance to fluid flowing from the second passage 82 to the first passage 81 is the first resistance, and the resistance to fluid flowing from the second passage 82 to the third passage 83 is the second resistance, with the second resistance being greater than the first resistance. This ensures that the medium entering the distributor 8 from the second port 12 will preferentially enter the main body 1 via the first passage 81.

[0154] In some embodiments of this utility model, such as Figure 11 and Figure 12 As shown, the openings of the second passage 82 and the third passage 83 face the same side, while the openings of the second passage 82 and the first passage 81 face opposite sides. Therefore, through the positional relationship of the first passage 81, the second passage 82, and the third passage 83, the resistance to fluid flow from the second passage 82 to the first passage 81 is the first resistance, and the resistance to fluid flow from the second passage 82 to the third passage 83 is the second resistance, with the second resistance being greater than the first resistance. This ensures that the medium entering the diverter 8 from the second port 12 will preferentially enter the main body 1 via the first passage 81.

[0155] In some embodiments of this utility model, such as Figure 11 As shown, the axis of the second passage 82 and the axis of the third passage 83 are parallel, while the axis of the first passage 81 and the axis of the second passage 82 do not coincide. Therefore, when the axis of the second passage 82 and the axis of the third passage 83 are parallel, the non-coincidence of the axis of the first passage 81 and the axis of the second passage 82 effectively prevents the medium from flowing entirely into the first passage 81 after entering through the second passage 82, resulting in almost no flow in the third passage 83. This ensures that most of the medium enters the first passage 81, and a small portion enters the third passage 83, achieving more stable distribution in the distributor 8 and improving the heat exchange uniformity and overall energy efficiency of the heat exchanger assembly 200 using this distributor component 100.

[0156] In some embodiments of this utility model, such as Figure 11 As shown, the axis of the first passage 81 is parallel to the axis of the second passage 82, and the axis of the first passage 81 is located between the axes of the second passage 82 and the third passage 83. This arrangement further ensures that the resistance to fluid flow from the second passage 82 to the first passage 81 is the first resistance, and the resistance to fluid flow from the second passage 82 to the third passage 83 is the second resistance, with the second resistance being greater than the first resistance. This ensures that the medium entering the distributor 8 from the second port 12 will preferentially enter the main body 1 via the first passage 81, reducing separation and eddies within the distributor 8, thereby reducing additional pressure drop and noise.

[0157] In some embodiments of this utility model, such as Figure 12 As shown, there are multiple third channels 83, which are spaced apart along the circumferential direction of the second channel 82, and the axis of the first channel 81 and the axis of the second channel 82 coincide.

[0158] It is understandable that, since the second passage 82 and the third passage 83 are located on the same side of the distributor 8, and the first passage 81 and the second passage 82 are located on opposite sides of the distributor 8, the axes of the first passage 81 and the second passage 82 are aligned so that the first passage 81 and the second passage 82 form a straight connection. The flow resistance from the second passage 82 to the first passage 81 is small. Meanwhile, multiple third passages 83 are spaced apart along the circumferential direction of the second passage 82 so that the flow resistance from the second passage 82 to the third passage 83 is large. Thus, the resistance of the fluid flowing from the second passage 82 to the first passage 81 is the first resistance, and the resistance of the fluid flowing from the second passage 82 to the third passage 83 is the second resistance, and the second resistance is greater than the first resistance.

[0159] Meanwhile, since the other end of the third passage 83 is open to form multiple second connecting holes 14, the third passage 83 is multiple, so that there are multiple second connecting holes 14. Each second connecting hole 14 is connected to a second branch pipe 32 connected to the heat exchange tube 41, so that there are multiple heat exchange tubes 41 corresponding to the third passage 83 one by one. Thus, the medium entering the multiple third passages 83 through the second branch pipe 32 is dispersed to the multiple heat exchange tubes 41, achieving uniform supply, reducing "starved gas / starved liquid", improving the two-phase distribution and temperature field, making the heat exchange more uniform, and the energy efficiency and operational stability higher.

[0160] In some embodiments of this utility model, such as Figure 12As shown, the axis of the second passage 82 is parallel to the axis of the third passage 83. It can be understood that when multiple third passages 83 are spaced apart along the circumferential direction of the second passage 82, the parallelism between the axes of the second passage 82 and the third passage 83 reduces the resistance difference between the multiple third passages 83. The medium can be evenly distributed into each third passage 83 according to a predetermined ratio, and enter the corresponding heat exchange tube 41 through the second connecting hole 14 and the second branch pipe 32 respectively, achieving more uniform heat exchange and higher energy efficiency and operational stability.

[0161] In some embodiments of this utility model, such as Figure 13 As shown, the axes of the first passage 81 and the second passage 82 coincide, and the axis of the third passage 83 is perpendicular to the axis of the second passage 82; or the axes of the first passage 81 and the second passage 82 coincide, and the angle between the axis of the third passage 83 and the axis of the second passage 82 is smaller than the angle between the axis of the third passage 83 and the axis of the first passage 81. Therefore, this arrangement reduces the local flow loss from the second passage 82 to the first passage 81, and ensures that a small portion of the medium can flow into the third passage 83 during the flow from the second passage 82 to the first passage 81. This achieves a first resistance for fluid flowing from the second passage 82 to the first passage 81 and a second resistance for fluid flowing from the second passage 82 to the third passage 83, with the second resistance being greater than the first resistance.

[0162] In some embodiments of this utility model, the inner diameter of the second passage 82 is D2, and the inner diameter of the third passage 83 is D3, satisfying: D2 ≥ D3. Therefore, by having the inner diameter of the second passage 82 greater than or equal to the inner diameter of the third passage 83, the connection resistance between the second passage 82 and the third passage 83 is greater, thereby increasing the flow resistance and reducing the flow rate from the second passage 82 into the third passage 83. Furthermore, the smaller inner diameter of the third passage 83 can further increase the flow resistance and reduce the flow rate from the second passage 82 into the third passage 83. Thus, the resistance to fluid flow from the second passage 82 to the first passage 81 is the first resistance, and the resistance to fluid flow from the second passage 82 to the third passage 83 is the second resistance, with the second resistance being greater than the first resistance. For example, as... Figure 9 and Figure 10 As shown, the inner diameter of the second passage 82 is larger than the inner diameter of the third passage 83.

[0163] In some embodiments of this invention, the inner diameter of the first passage 81 is D1, and the inner diameter of the third passage 83 is D3, satisfying that D1 > D3. Therefore, this arrangement increases the flow rate from the second passage 82 into the first passage 81 and decreases the flow rate from the second passage 82 into the third passage 83, thereby achieving a first resistance for fluid flowing from the second passage 82 to the first passage 81 and a second resistance for fluid flowing from the second passage 82 to the third passage 83, with the second resistance being greater than the first resistance.

[0164] In some embodiments of this utility model, the open end of the second passage 82 is connected to an extension pipe 34, and the open end of the third passage 83 is connected to a second branch pipe 32. The inner diameter of the extension pipe 34 is greater than or equal to the inner diameter of the second branch pipe 32. Therefore, by making the inner diameter of the extension pipe 34 greater than or equal to the inner diameter of the second branch pipe 32, the connection resistance between the second passage 82 and the third passage 83 is increased, thereby increasing the flow resistance and reducing the flow rate from the second passage 82 into the third passage 83. Furthermore, the smaller inner diameter of the third passage 83 can further increase the flow resistance and reduce the flow rate from the second passage 82 into the third passage 83. Thus, the resistance to fluid flow from the second passage 82 to the first passage 81 is the first resistance, and the resistance to fluid flow from the second passage 82 to the third passage 83 is the second resistance, and the second resistance is greater than the first resistance. For example, as... Figure 1 and Figure 2 As shown, the inner diameter of the second passage 82 is larger than the inner diameter of the third passage 83.

[0165] In some embodiments of this invention, the open end of the first passage 81 is connected to a second manifold 16 or a connecting pipe, the inner diameter of which is larger than the inner diameter of the second branch pipe 32. This arrangement increases the flow rate from the second passage 82 into the first passage 81 and decreases the flow rate from the second passage 82 into the third passage 83, thereby achieving a first resistance for fluid flowing from the second passage 82 to the first passage 81 and a second resistance for fluid flowing from the second passage 82 to the third passage 83, with the second resistance being greater than the first resistance.

[0166] In some embodiments of this invention, the open end of the first passage 81 is connected to a second manifold 16 or a connecting pipe 101, and the open end of the second passage 82 is connected to an extension pipe 34. The inner diameter of the second manifold 16 or the connecting pipe 101 is greater than or equal to the inner diameter of the extension pipe 34. This arrangement increases the flow rate from the second passage 82 into the first passage 81 and reduces the flow rate from the second passage 82 into the third passage 83, allowing more refrigerant entering through the extension pipe 34 to flow into the second manifold 16 or the connecting pipe 101.

[0167] In some embodiments of this utility model, such as Figures 9-11 and Figure 14 As shown, the second connecting hole 14 is connected to a second branch pipe 32. The minimum cross-sectional inner diameter of the second branch pipe 32 is D0, and it satisfies: D0 ≤ D3. It can be understood that when the inner diameter of the second passage 82 is greater than or equal to the inner diameter of the third passage 83, by further limiting the inner diameter of the second branch pipe 32 to be less than or equal to the inner diameter of the third passage 83, the resistance to fluid flow from the second passage 82 to the first passage 81 can be further increased, thereby reducing the flow rate from the second passage 82 into the third passage 83. For example, as... Figure 1and Figure 2 As shown, the inner diameter of the second passage 82 is equal to the inner diameter of the third passage 83, and the inner diameter of the second branch pipe 32 is smaller than the inner diameter of the third passage 83.

[0168] In some embodiments of this utility model, the inner diameter of the third passage 83 is D3, and satisfies: D3≥3mm. Therefore, this limitation effectively prevents excessive resistance in the flow of medium from the second passage 82 into the distributor 8 to the third passage 83, thus avoiding insufficient flow of medium into the third passage 83 and improving the overall reliability of the distributor assembly 100.

[0169] It should be noted that the inner diameter of the third passage 83 can be 3mm, 4mm, 5mm, 6mm or 7mm, etc.

[0170] The following describes a heat exchanger assembly 200 according to an embodiment of the present invention.

[0171] The heat exchanger assembly 200 according to an embodiment of the present utility model includes: a heat exchanger body 4, a flow collection assembly 5, and the aforementioned flow distribution assembly 100.

[0172] like Figure 5 and Figure 6 As shown, the heat exchanger body 4 has multiple heat exchange tubes 41, which form multiple flow paths. The flow collection assembly 5 is located on one side of the heat exchanger body 4 and is connected to the multiple flow paths. The flow collection assembly 5 has a third port 51. The first connecting hole 13 is connected to the end of at least one flow path away from the flow collection assembly 5, and the second connecting hole 14 is connected to the end of at least one flow path away from the flow collection assembly 5.

[0173] Among them, the manifold 5 has the function of collecting and distributing refrigerant, and the refrigerant is suitable to flow from one of the distributor 100 and the manifold 5 to the other.

[0174] For example, when the heat exchanger assembly 200 is applied to the air conditioning system 300, 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 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 distribute the gaseous refrigerant, and the flow-blocking component 2 is shut off.

[0175] like Figure 7As 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.

[0176] 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, and flows out of the heat exchanger assembly 200 from the first connecting hole 13 and the second connecting hole 14 into the heat exchange tube 41 or heat exchange channel of the heat exchanger assembly 200. The distributor 71 is used to distribute the liquid refrigerant, the flow-blocking component 2 is open, and the first port 11 is closed.

[0177] like Figure 8 As 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.

[0178] 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.

[0179] 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.

[0180] According to the embodiment of the present invention, the heat exchanger assembly 200 includes a flow distribution component 100. By providing a flow-blocking component 2 on the connecting pipe 101, and ensuring that the flow-blocking component 2 only allows refrigerant to flow from the second port 12 to the first connecting hole 13, the flow-blocking component 2 can automatically open and close or cut off the flow, thereby automatically guiding the refrigerant and changing its flow direction. Simultaneously, the main body 1 includes a distributor 71 with multiple first connecting holes 13. The distributor 71 connects to multiple first branch pipes 31 through these holes, achieving uniform flow distribution among the multiple first branch pipes 31 connected to the distributor 71, ensuring consistent operating conditions and improving heat exchange stability. Furthermore, when the heat exchanger assembly 200 functions as an evaporator or condenser, it enables automatic switching of different flow paths for the refrigerant within the heat exchanger assembly 200, 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, making it simple, easy to implement, and low in cost.

[0181] In some embodiments of this utility model, such as Figure 8 As shown, 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, 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 200 from the third port 51. The distributor 71 is used to distribute the liquid refrigerant, the flow-blocking component 2 is open, and the first port 11 is closed.

[0182] 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.

[0183] 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.

[0184] like Figure 7 As shown, when the heat exchanger assembly functions as a condenser, refrigerant flows into the heat exchanger assembly 200 from the first port 11, and then flows into the heat exchange tube 41 of the heat exchanger assembly 200 from the first connecting hole 13, and subsequently flows out of the heat exchanger assembly from the second connecting hole 14 and the second port 12. The distributor 71 is used to distribute the gaseous refrigerant, and both the flow-blocking component 2 and the third port 51 are shut off. In this embodiment, the third port 51 is shut off by a valve in the air conditioner, for example, by a five-way valve 636.

[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, the heat exchange tubes 41 are arranged in multiple rows along the thickness direction of the heat exchanger body 4. The multiple heat exchange tubes 41 form at least one first flow path 42 and at least one second flow path 43. Both the first flow path 42 and the second flow path 43 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 are located in different rows.

[0188] 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, allowing for 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 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.

[0189] In some embodiments of this utility model, such as Figure 5 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.

[0190] 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.

[0191] In this way, when the heat exchanger assembly 200 functions as a condenser, the refrigerant can be ensured to flow from the leeward side to the windward side along the thickness direction of the heat exchanger body 4, thus 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, and when the heat exchanger assembly 200 is applied to the air conditioning system 300, it can improve the performance and energy efficiency of the air conditioning system 300.

[0192] In some embodiments of this utility model, such as Figure 5 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.

[0193] 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 performance and energy efficiency of the air conditioning system 300.

[0194] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, the second flow path 43 includes a row of air-facing heat exchange tubes 45 on the air-facing side of the heat exchanger body 4 and a row of leeward heat exchange tubes 44 on the leeward side of the heat exchanger body 4. When the heat exchanger assembly functions as an evaporator, the refrigerant flowing into the second flow path 43 first flows through the air-facing heat exchange tubes 45 and then through the leeward heat exchange tubes 44. When the heat exchanger assembly functions as a condenser, the refrigerant flowing into the second flow path 43 first flows through the leeward heat exchange tubes 44 and then through the air-facing heat exchange tubes 45. The refrigerant flowing out of the first flow path 42 flows into the leeward heat exchange tubes 44 of the second flow path 43. Within the second flow path 43, the refrigerant flows from the leeward heat exchange tubes 44 to the air-facing heat exchange tubes 45, and then flows out of the heat exchanger body 4 through the second connecting hole 14 from the air-facing heat exchange tubes 45 of the second flow path 43 to enter the body section 1.

[0195] This ensures that when the heat exchanger assembly 200 functions as a condenser, 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-current 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, and when applied to the air conditioning system 300, it enhances the performance and energy efficiency of the air conditioning system 300.

[0196] 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.

[0197] In some embodiments of this utility model, such as Figure 5 and Figure 6 As shown, the flow collector 5 and the flow divider 100 are located on the same side along the length of the heat exchanger body 4. The positions of the flow collector 5 and the flow divider 100 can be selected according to 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 5 and the flow divider 100 and the heat exchanger body 4 simpler and more convenient.

[0198] 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.

[0199] The following describes an air conditioning system 300 according to an embodiment of the present invention.

[0200] An air conditioning system 300 according to an embodiment of the present invention includes: a compressor 61, an indoor heat exchanger 62, the aforementioned heat exchanger assembly 200, and a reversing assembly 63.

[0201] Specifically, such as Figure 7 and Figure 8As shown, 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, and the fourth port 634 connects one end of the first flow path 42 away from the first connecting hole 13 and one end of the second flow path 43 away from the second connecting hole 14. The fifth port 635 is connected to the first port 11. The commutation component 63 has a first switching state and a second switching state. When the commutation component 63 is in the first switching state, the first port 631 is connected to the fifth port 635, the second port 632 is connected to the third port 633, and the fourth port 634 is cut off to close the third port 51 (so that the third port is cut off). When the commutation component 63 is in the second switching state, the first port 631 is connected to the second port 632, the third port 633 and the fourth port 634 are connected, and the fifth port 635 is cut off to cut off the first port 11.

[0202] During the specific operation of the air conditioning system 300, such as Figure 7 As shown in the example, when the air conditioning system 300 is in cooling mode, the commutator 63 is in the first switching state, and the first port 631 of the commutator 63 is connected to the fifth port 635, and the second port 632 is connected to the third port 633.

[0203] 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.

[0204] 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 and the third port 51 is set to an open circuit state. 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 through the collector component 5, 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 then enters the heat exchange tube 41 of the second flow path 43 after being collected. This can further reduce the temperature of the refrigerant and increase the subcooling of the refrigerant, thereby forming a subcooling tube design for the condenser and better enhancing the heat exchange efficiency of the heat exchanger assembly 200.

[0205] Similarly, such as Figure 8 As shown in the example, when the air conditioning system 300 is in heating mode, when the reversing component 63 is in the second switching state, 631 is connected to the second port 632, and the third port 633 and the fourth port 634 are connected.

[0206] 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.

[0207] 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. After the refrigerant in the multiple flow paths is collected by the flow-collecting component 5, it flows out of the heat exchanger assembly 200 through the third port 51 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 heat exchange pattern can be formed, thereby improving the heat exchange efficiency of the heat exchanger assembly 200.

[0208] 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.

[0209] 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.

[0210] According to an embodiment of the present invention, an air conditioning system 300 includes a heat exchanger assembly 200. The main body 1 has a first port 11, a second port 12, a first connecting hole 13, and a second connecting hole 14. The main body 1 includes a connecting pipe 101 and a flow-blocking component 2 on the connecting pipe 101. The flow-blocking component 2 allows refrigerant to flow only from the second port 12 to the first connecting hole 13, enabling automatic opening and closing or flow interception of the flow-blocking component 2. This achieves automatic flow guidance of the refrigerant by the flow-blocking component 2, thereby changing the flow direction of the refrigerant. Simultaneously, the main body 1 includes a distributor 71, which has multiple first connecting holes 13. The distributor 71 connects to multiple first branch pipes 31 through these multiple first connecting holes 13, thereby achieving uniform flow distribution among the multiple first branch pipes 31 connected to the distributor 71, ensuring consistent operating conditions of the multiple first branch pipes 31 and improving heat exchange stability. Furthermore, when the flow distribution component 100 is used in the heat exchanger assembly 200 and the air conditioning system 300, it can automatically switch the refrigerant flow path within the heat exchanger assembly 200 when the heat exchanger assembly 200 acts as an evaporator or condenser. 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. Moreover, no other control structure is required, making the structure simple, easy to implement, and low-cost.

[0211] In some embodiments, 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 first port 631 to communicate with the fifth port 635 and the second port 632 to communicate with the third port 633, or to control the first port 631 to communicate with the second port 632 and the third port 633 to communicate with the fourth port 634.

[0212] The following describes an air conditioner according to an embodiment of the present invention.

[0213] The air conditioner according to an embodiment of the present invention includes the air conditioning system 300 described above.

[0214] According to an embodiment of the present invention, an air conditioning system 300 is provided. The main body 1 has a first port 11, a second port 12, a first connecting hole 13, and a second connecting hole 14. The main body 1 includes a connecting pipe 101 and a flow-blocking component 2 on the connecting pipe 101. The flow-blocking component 2 allows refrigerant to flow only from the second port 12 to the first connecting hole 13, enabling automatic opening and closing or flow interception of the flow-blocking component 2. This achieves automatic flow guidance of the refrigerant by the flow-blocking component 2, thereby changing the flow direction of the refrigerant. Simultaneously, the main body 1 includes a distributor 71, which has multiple first connecting holes 13. The distributor 71 connects to multiple first branch pipes 31 through the multiple first connecting holes 13, thereby achieving uniform flow distribution among the multiple first branch pipes 31 connected to the distributor 71, ensuring consistent operating conditions of the multiple first branch pipes 31 and improving heat exchange stability. Furthermore, when the flow distribution component 100 is used in the heat exchanger assembly 200 and the air conditioning system 300, it can automatically switch the refrigerant flow path within the heat exchanger assembly 200 when the heat exchanger assembly 200 acts as an evaporator or condenser. 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. Moreover, no other control structure is required, making the structure simple, easy to implement, and low-cost.

[0215] Other components of the air conditioning system according to embodiments of the present invention, such as throttling devices, compressors, and pilot valves, as well as their operation, are known to those skilled in the art and will not be described in detail here.

[0216] 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.

[0217] 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 flow splitter assembly for a heat exchanger assembly, characterized in that, include: The main body has a first port, a second port, a first connecting hole and a second connecting hole, and includes a connecting pipe and a distributor. The distributor has a plurality of first connecting holes and is connected to a plurality of first branch pipes through the plurality of first connecting holes. A flow-blocking component is provided on the connecting pipe. Along the length of the connecting pipe, 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. When the heat exchanger assembly is used as an evaporator, the refrigerant flows into the heat exchanger assembly from the second port, and flows out of the heat exchanger assembly from the first connecting hole and the second connecting hole into the heat exchange tube or heat exchange channel of the heat exchanger assembly. The distributor is used to divide the liquid refrigerant, 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 the heat exchanger assembly from the first port, and then flows into the heat exchange tube or heat exchange channel of the heat exchanger assembly from the first connecting hole, and then flows out of the heat exchanger assembly from the second connecting hole and the second port in sequence. The distributor is used to split the gaseous refrigerant, and the flow-blocking component is used to cut off the flow.

2. The shunt component according to claim 1, characterized in that, The distributor has a main interface and multiple distribution holes, the main interface being connected to the connecting pipe, and at least some of the distribution holes being the first connecting holes.

3. The shunt component according to claim 2, characterized in that, Each of the distribution holes is connected to the first branch pipe, and the first port is located on the connecting pipe between the distributor and the flow-blocking component.

4. The shunt component according to claim 2, characterized in that, The number of distribution holes is N, with N-1 distribution holes connected to the first branch pipe and the remaining distribution hole forming the first port.

5. The shunt assembly according to any one of claims 2-4, characterized in that, Along the length of the connecting pipe, the distance between the main inlet and the outlet end of the flow-blocking component is 15mm-500mm; and / or Along the length of the connecting pipe, the distance between the second connecting hole and the inlet end of the flow-blocking component is 15mm-100mm; and / or Along the length of the connecting pipe, the distance between the second connecting hole and the inlet end of the flow-blocking component is less than the distance between the main interface and the outlet end of the flow-blocking component.

6. The shunt assembly according to any one of claims 1-4, characterized in that, At least one second branch pipe is connected to the second connecting hole.

7. The shunt component according to claim 6, 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.

8. The shunt assembly according to any one of claims 1-4, characterized in that, Also includes: An air intake pipe, one end of which is connected to the first port.

9. The shunt component according to claim 8, characterized in that, The intake pipe includes: A connecting pipe, wherein the connecting pipe is connected in series with the communicating pipe; An inlet pipe, one end of which is connected to and communicates with the peripheral wall of the connecting pipe.

10. The shunt assembly according to any one of claims 1-4, characterized in that, The second port is formed by opening one end of the connecting pipe 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.

11. The shunt assembly according to any one of claims 1-4, characterized in that, Also includes: An extension tube, one end of which is connected to the second port.

12. The shunt assembly according to claim 11, characterized in that, In a projection plane perpendicular to the axis of the main body, the extension tube has at least one radial extension that extends obliquely along the radial direction of the connecting tube, and the angle between the radial extension closest to the second port and the first branch tube is B and satisfies: 15°≤B°≤225°.

13. The shunt assembly according to claim 11, characterized in that, The angle between the tangent of the axis of the extension tube connected to the second port and the axis of the connecting tube is C, and satisfies: 0°≤C°≤135°.

14. The shunt assembly according to any one of claims 1-4, characterized in that, The flow-blocking component is a one-way valve, a solenoid valve, or a baffle.

15. The shunt assembly according to any one of claims 1-4, characterized in that, The main body includes a diverter located at one end of the connecting pipe. The diverter has a first passage, a second passage, and a third passage. One end of the first passage, one end of the second passage, and one end of the third passage are interconnected. The other end of the first passage is connected to the inlet end of the flow-blocking component. The other end of the second passage is open, forming a second port. The other end of the third passage is open, forming a second connecting hole. Wherein, the resistance to the fluid flowing from the second passage to the first passage is the first resistance, and the resistance to the fluid flowing from the second passage to the third passage is the second resistance, and the second resistance is greater than the first resistance; Alternatively, the flow rate of fluid from the second passage to the first passage is the first flow rate, and the flow rate of fluid from the second passage to the third passage is the second flow rate, wherein the first flow rate is greater than the second flow rate.

16. The shunt assembly according to claim 15, characterized in that, The distributor has a splitting cavity, and one end of the first passage, one end of the second passage, and one end of the third passage are all connected to the splitting cavity.

17. The shunt assembly according to claim 15, characterized in that, The axes of the first path, the second path, and the third path extend in a straight line.

18. The shunt assembly according to claim 15, characterized in that, The second and third paths are located on the same side of the splitter, while the first and second paths are located on opposite sides of the splitter; and / or The openings of the second passage and the third passage face the same side, while the openings of the second passage and the first passage face opposite sides.

19. The shunt assembly according to claim 18, characterized in that, The axis of the second path is parallel to the axis of the third path, while the axis of the first path does not coincide with the axis of the second path.

20. The shunt assembly according to claim 19, characterized in that, The axis of the first path is parallel to the axis of the second path and is located between the axis of the second path and the axis of the third path.

21. The shunt assembly according to claim 19, characterized in that, There are multiple third paths, which are spaced apart along the circumferential direction of the second path, and the axis of the first path coincides with the axis of the second path.

22. The shunt assembly according to claim 21, characterized in that, The axis of the second path is parallel to the axis of the third path.

23. The shunt assembly according to claim 15, characterized in that, The axes of the first and second pathways coincide, and the axis of the third pathway is perpendicular to the axis of the second pathway; or The axes of the first and second paths coincide, and the angle between the axis of the third path and the axis of the second path is smaller than the angle between the axis of the third path and the axis of the first path.

24. The shunt assembly according to claim 15, characterized in that, The inner diameter of the second passage is D2, and the inner diameter of the third passage is D3, satisfying: D2 ≥ D3; and / or The inner diameter of the first passage is D1, and the inner diameter of the third passage is D3, satisfying: D1 > D3; and / or The open end of the second passage is connected to an extension pipe, and the open end of the third passage is connected to a second branch pipe. The inner diameter of the extension pipe is greater than or equal to the inner diameter of the second branch pipe. and / or The open end of the first passage is connected to a connecting pipe, and the inner diameter of the connecting pipe is larger than the inner diameter of the second branch pipe. and / or The open end of the first passage is connected to a connecting pipe, and the open end of the second passage is connected to an extension pipe. The inner diameter of the connecting pipe is greater than or equal to the inner diameter of the extension pipe.

25. The shunt assembly according to claim 24, characterized in that, The open end of the third passage is connected to a second branch pipe, the minimum cross-sectional inner diameter of the second branch pipe is D0, and satisfies: D0≤D3.

26. The shunt assembly according to claim 15, characterized in that, The inner diameter of the third passage is D3, and it satisfies the condition: D3≥3mm.

27. The shunt assembly according to claim 1, 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 plurality of first connecting holes are all located above or diagonally above the flow-blocking component, and the plurality of first connecting holes face upward or diagonally upward. And / or, the distributor forms a diversion cavity, a main interface and a plurality of first connecting holes, the main interface and the plurality of first connecting holes are respectively located on opposite sides of the distributor, the plurality of first connecting holes are all connected to the diversion cavity, the plurality of first connecting holes face upward or diagonally upward, and the main interface is connected to the diversion cavity and faces the plurality of first connecting holes.

28. A heat exchanger assembly, characterized in that, include: A heat exchanger body having multiple heat exchange tubes forming multiple flow paths; A flow collector assembly is disposed on one side of the heat exchanger body and communicates with multiple flow paths, and the flow collector assembly has a third port; The diversion component according to any one of claims 1-27, wherein the first connecting hole is connected to at least one end of the flow path away from the current collecting component, and the second connecting hole is connected to at least one end of the flow path away from the current collecting component.

29. The heat exchanger assembly according to claim 28, 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, and flows into the heat exchange tube of the heat exchanger assembly from the first connecting hole and the second connecting hole, and then flows out of the heat exchanger assembly from the third port. The distributor is used to distribute the liquid refrigerant, 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 the heat exchanger assembly from the first port, and then flows into the heat exchange tube of the heat exchanger assembly from the first connecting hole, and then flows out of the heat exchanger assembly from the second connecting hole and the second port in sequence. The distributor is used to split the gaseous refrigerant, and the flow-blocking component and the third port are both shut off.

30. The heat exchanger assembly according to claim 28, characterized in that, The heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. The multiple heat exchange tubes form at least one first flow path and at least one second flow path. 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.

31. The heat exchanger assembly according to claim 30, 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.

32. The heat exchanger assembly according to any one of claims 28-31, characterized in that, The heat exchange tubes are arranged in multiple rows along the thickness direction of the heat exchanger body. The multiple heat exchange tubes form at least one first flow path and at least one second flow path. 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 flows 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.

33. The heat exchanger assembly according to claim 32, 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.

34. The heat exchanger assembly according to claim 28, 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.

35. 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 28-34, 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.

36. An air conditioner, characterized in that, Including the air conditioning system as described in claim 35.

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