Heat exchanger assembly and air conditioner

Abstract

The utility model discloses a heat exchanger assembly and air conditioner, the heat exchanger assembly includes: heat exchanger body, heat exchanger body has a plurality of heat exchange flow path and includes first flow path and second flow path, control valve subassembly, control valve subassembly includes Tesla valve and check valve or reversing valve, and control valve subassembly is used for realizing the flow path difference of refrigerant in heat exchanger body when refrigeration mode and heating mode. According to the heat exchanger assembly of the utility model, the flow path difference of refrigerant in heat exchanger body when refrigeration mode and heating mode is realized through control valve subassembly, so that the performance of heat exchanger assembly under different working conditions is all promoted, improves the overall efficiency of heat exchanger assembly and air conditioner. At the same time, through control valve subassembly including Tesla valve and check valve or reversing valve, effectively eliminate the mechanical wear and tear and noise brought by mechanical valve body structure movement, and reduce air conditioning system pressure drop loss, improve the reliability of heat exchanger assembly.

Description

Technical Field

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

[0002] The optimal flow path for a heat exchanger often differs depending on whether it functions as a condenser in cooling mode or as an evaporator in heating mode. However, in existing technologies, the heat exchanger flow path design process typically determines the optimal number of flow paths for cooling and heating modes separately, and then uses a compromise number of flow paths as the final design. While this ensures that the heat exchange performance meets basic requirements under any given operating condition, it fails to achieve optimal performance under different conditions. Summary of the Invention

[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 heat exchanger assembly whose performance is improved under different operating conditions, thereby increasing the overall efficiency of the heat exchanger assembly and the air conditioner.

[0004] This utility model also proposes an air conditioner, which includes the heat exchanger assembly described above.

[0005] A heat exchanger assembly according to an embodiment of the present invention is used in an air conditioner, comprising: a heat exchanger body having multiple heat exchange flow paths, including a first flow path and a second flow path; and a control valve assembly including a Tesla valve and a one-way valve or a reversing valve, the control valve assembly being used to achieve different flow paths of refrigerant in the heat exchanger body in cooling mode and heating mode.

[0006] According to an embodiment of the present invention, the heat exchanger assembly includes a heat exchanger body and a control valve assembly. The heat exchanger body has multiple heat exchange flow paths, including a first flow path and a second flow path. The control valve assembly is used to ensure that the refrigerant flows differently within the heat exchanger body in cooling and heating modes, thereby improving the performance of the heat exchanger assembly under different operating conditions and enhancing the overall efficiency of the heat exchanger assembly and the air conditioner. Simultaneously, the control valve assembly, including a Tesla valve and a one-way valve or a reversing valve, effectively eliminates mechanical wear and noise caused by the movement of the mechanical valve body structure, reduces pressure drop losses in the air conditioning system, and improves the reliability of the heat exchanger assembly.

[0007] In some embodiments of this utility model, when the control valve assembly includes the Tesla valve and the one-way valve, the heat exchanger assembly further includes: a first flow divider, the first flow divider forming a first connecting channel, a first main inlet and outlet, and a first branch port, the first main inlet and outlet connecting the first connecting channel and the second flow path, the first branch port connecting the first connecting channel and the first flow path, the first flow divider including a first control valve disposed in the first connecting channel; wherein, in the direction from the first main inlet and outlet to the first branch port, the resistance of the fluid passing through the first control valve is a first resistance, and in the direction from the first branch port to the first main inlet and outlet, the resistance of the fluid passing through the first control valve is a second resistance, and the first resistance is greater than the second resistance.

[0008] In some embodiments of this utility model, it further includes: a second diversion component, the second diversion component forming a second connecting channel, a second main inlet and outlet and a second branch port, the second main inlet and outlet connecting to the second connecting channel, the second branch port connecting the second connecting channel and the first flow path and the second flow path, the second diversion component including a second control valve disposed in the second connecting channel; wherein, in the direction from the second main inlet and outlet to the second branch port, the resistance of the fluid passing through the second control valve is a third resistance, and in the direction from the second branch port to the second main inlet and outlet, the resistance of the fluid passing through the second control valve is a fourth resistance, the third resistance being less than the fourth resistance.

[0009] In some embodiments of this utility model, one of the first control valve and the second control valve is the Tesla valve, and the other is the check valve.

[0010] In some embodiments of this utility model, it further includes: a third diversion component, the third diversion component forming a third connecting channel, a third inlet and outlet, and a fourth inlet and outlet, the third inlet and outlet connecting the third connecting channel and the first flow path, the fourth inlet and outlet connecting the third connecting channel and the second total inlet and outlet, the third diversion component including a third control valve disposed in the third connecting channel, the third control valve being connected between the first flow path and the second total inlet and outlet; wherein, in the direction from the third inlet and outlet to the fourth inlet and outlet, the resistance of the fluid passing through the third control valve is a seventh resistance, and in the direction from the fourth inlet and outlet to the third inlet and outlet, the resistance of the fluid passing through the third control valve is an eighth resistance, the seventh resistance being less than the eighth resistance.

[0011] In some embodiments of this utility model, the third control valve is the Tesla valve or the check valve.

[0012] In some embodiments of this utility model, the first flow path includes: a first sub-flow path, with a third end and a fourth end at its two ends along its length, the third end being connected to the second main inlet and outlet, and the fourth end being connected to the first main inlet and outlet; a second sub-flow path, with a fifth end and a sixth end at its two ends along its length, the fifth end being connected to the second main inlet and outlet and the second flow path respectively, the sixth end being connected to the fourth end and the first main inlet and outlet respectively, a first control valve being connected between the fourth end and the first main inlet and outlet and between the sixth end and the first main inlet and outlet, and a second control valve being connected between the fifth end and the second main inlet and outlet.

[0013] In some embodiments of this utility model, the second sub-flow path is one or multiple sub-flow paths arranged in parallel. When there are multiple second sub-flow paths, the heat exchange tubes of the multiple second sub-flow paths are arranged in the height direction of the heat exchanger body; and / or, the heat exchange tubes of the second sub-flow path and the heat exchange tubes of the first sub-flow path are arranged sequentially along the height direction of the heat exchanger body.

[0014] In some embodiments of this utility model, there are multiple second flow paths, and the heat exchange tubes of the multiple second flow paths are arranged in the height direction of the heat exchanger body; and / or, the heat exchange tubes of the second flow paths and the heat exchange tubes of the first flow path are arranged along the height direction of the heat exchanger body.

[0015] In some embodiments of this utility model, when the control valve assembly includes the Tesla valve and the reversing valve, the heat exchanger body further includes a third main inlet / outlet, a fourth main inlet / outlet, and a fifth main inlet / outlet. One end of the first flow path is connected to the third main inlet / outlet and the fourth main inlet / outlet, and the other end is connected to the fifth main inlet / outlet and the second flow path. One end of the second flow path is connected to the third main inlet / outlet and the fourth main inlet / outlet, and the other end is connected to the fifth main inlet / outlet. The reversing valve is used to realize the connection between the third main inlet / outlet and the fourth main inlet / outlet, or the connection between the third main inlet / outlet and the fifth main inlet / outlet. The Tesla valve is connected between the end of the second flow path connected to the third main inlet / outlet and the end of the first flow path connected to the fourth main inlet / outlet. In the direction from the third main inlet / outlet to the second flow path, the resistance of the fluid passing through the Tesla valve is the ninth resistance, and the resistance of the fluid passing through the Tesla valve in the direction from the second flow path to the third main inlet / outlet is the tenth resistance. The tenth resistance is greater than the ninth resistance.

[0016] In some embodiments of this utility model, the reversing valve has a first port, a second port, a third port, a fourth port, and a fifth port. The first port is adapted to communicate with the exhaust port of the compressor, the third port is adapted to communicate with the return port of the compressor, the second port is adapted to communicate with one end of the indoor heat exchanger, the third main inlet / outlet is adapted to communicate with the other end of the indoor heat exchanger, the fourth port is connected to the fifth main inlet / outlet, and the fifth port is connected to the fourth main inlet / outlet. In some embodiments, the first port is connected to the fifth port, and the second port is connected to the third port, or the first port is connected to the second port, and the third port is connected to the fourth port.

[0017] In some embodiments of this utility model, the first flow path is one or multiple flow paths arranged in parallel. When there are multiple first flow paths, the heat exchange tubes of the multiple first flow paths are arranged in the height direction of the heat exchanger body; and / or, the second flow path is one or multiple flow paths arranged in parallel. When there are multiple second flow paths, the heat exchange tubes of the multiple second flow paths are arranged in the height direction of the heat exchanger body; and / or, the heat exchange tubes of the second flow path and the heat exchange tubes of the first flow path are arranged sequentially along the height direction of the heat exchanger body.

[0018] The air conditioner according to an embodiment of the present invention includes the heat exchanger assembly described above.

[0019] According to an embodiment of this utility model, an air conditioner is provided with a heat exchanger assembly, which includes a heat exchanger body and a control valve assembly. The heat exchanger body has multiple heat exchange flow paths, including a first flow path and a second flow path. The control valve assembly is used to ensure that the refrigerant in the heat exchanger body flows differently in cooling and heating modes, thereby improving the performance of the heat exchanger assembly under different operating conditions and increasing the overall efficiency of the air conditioner. Simultaneously, the control valve assembly, including a Tesla valve and a one-way valve or a reversing valve, effectively eliminates mechanical wear and noise caused by the movement of the mechanical valve body structure, reduces pressure drop loss in the air conditioning system, and improves the reliability of the air conditioner.

[0020] 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

[0021] 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:

[0022] Figure 1 This is a schematic diagram of the structure of a heat exchanger assembly according to an embodiment of the present utility model, wherein the heat exchanger body is a schematic diagram;

[0023] Figure 2This is a schematic diagram of a heat exchanger assembly according to another embodiment of the present invention, wherein the heat exchanger body is a schematic diagram;

[0024] Figure 3 This is a structural schematic diagram of an air conditioning system according to an embodiment of the present utility model, wherein the air conditioning system is in cooling mode;

[0025] Figure 4 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 heating mode;

[0026] Figure 5 This is a schematic diagram of the structure of a heat exchanger assembly according to another embodiment of the present utility model, wherein the heat exchanger body is a schematic diagram;

[0027] Figure 6 This is a schematic diagram of an air conditioning system according to another embodiment of the present invention, wherein the air conditioning system is in cooling mode;

[0028] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0029] Figure 8 This is a schematic diagram of an air conditioning system according to another embodiment of the present invention, wherein the air conditioning system is in heating mode;

[0030] Figure 9 yes Figure 8 Enlarged view at point B in the middle;

[0031] Figure 10 This is a schematic diagram of the structure of a heat exchanger assembly according to another embodiment of the present invention, wherein the heat exchanger body is a schematic diagram;

[0032] Figure 11 This is a top view of the Tesla valve according to an embodiment of the present utility model;

[0033] Figure 12 yes Figure 11 Enlarged view of point C.

[0034] Figure label:

[0035] 1000. Air conditioning system;

[0036] 100. Heat exchanger assembly;

[0037] 1. Heat exchanger body; 13. First flow path; 131. First end; 132. Second end; 133. First sub-flow path; 1331. Third end; 1332. Fourth end; 134. Second sub-flow path; 1341. Fifth end; 1342. Sixth end; 14. Second flow path;

[0038] 2. First diversion component; 21. First connecting channel; 211. First control valve; 22. First main inlet / outlet; 23. First branch port;

[0039] 3. Second diversion component; 31. Second connecting channel; 311. Second control valve; 32. Second main inlet / outlet; 33. Second branch port;

[0040] 4. Third diversion component; 41. Third connecting channel; 411. Third control valve; 42. Third inlet / outlet; 43. Fourth inlet / outlet;

[0041] 51. Third Total Import and Export; 52. Fourth Total Import and Export; 53. Fifth Total Import and Export;

[0042] 201. Tesla valve; 6. Inflow section; 7. Outflow section; 8. Valve assembly; 81. Valve unit; 811. Arc section; 812. First connecting section; 813. First straight section; 82. Connecting section;

[0043] 202. Check valve;

[0044] 203. Reversing valve; 2031. First port; 2032. Second port; 2033. Third port; 2034. Fourth port; 2035. Fifth port;

[0045] 300. Compressor;

[0046] 400, Four-way valve; 401, First port; 402, Second port; 403, Third port; 404, Fourth port; 500, Indoor heat exchanger. Detailed Implementation

[0047] 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.

[0048] 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.

[0049] 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.

[0050] The heat exchanger assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0051] like Figure 1 , Figure 2 , Figure 5 and Figure 10 As shown, the heat exchanger assembly 100 according to an embodiment of the present invention is used in an air conditioner. The heat exchanger assembly 100 includes a heat exchanger body 1 and a control valve assembly. The heat exchanger body 1 has multiple heat exchange flow paths, including a first flow path 13 and a second flow path 14. The control valve assembly includes a Tesla valve 201 and a one-way valve 202 or a reversing valve 203. The control valve assembly is used to ensure that the refrigerant in the heat exchanger body 1 flows through different paths in cooling mode and heating mode.

[0052] Understandably, when the heat exchanger assembly 100 is used as a condenser in cooling mode, the flow rate has a dominant effect on the heat transfer coefficient, and the performance of the heat exchanger assembly 100 can be improved by reducing the number of flow paths. However, when the heat exchanger assembly 100 is used as an evaporator in heating mode, the reduction in the logarithmic mean temperature difference caused by pressure loss is the dominant factor affecting the performance of the heat exchanger assembly 100. It is necessary to appropriately increase the number of flow paths to reduce frictional resistance and temperature glide, thereby increasing the heat transfer temperature difference, reducing the power consumption of the compressor 300, and improving the performance of the heat exchanger assembly 100.

[0053] Therefore, this application enables the fluid flow path in the heat exchange flow path to be diverse and flexible by controlling the valve assembly, so as to achieve the effect of switching different numbers of flow paths in the heat exchanger assembly 100 in the cooling mode and the heating mode. The control valve assembly enables the refrigerant in the heat exchanger body 1 to flow differently in the cooling mode and the heating mode, thereby improving the performance of the heat exchanger assembly 100 under different operating conditions.

[0054] Meanwhile, since the Tesla valve 201 is a special conduit that can function as a valve, its unique feature is that although it has no moving parts, it can effectively suppress backflow and achieve unidirectional fluid control by relying on the geometry of the flow channel. When the flow is in the forward direction, the fluid basically flows along the central direct flow channel; while when the flow is in the reverse direction, the fluid needs to continuously flow around the arc-shaped branch flow channel, resulting in a significant increase in flow resistance.

[0055] Therefore, by controlling the valve assembly, which includes a combination of Tesla valve 201 and one-way valve 202 or a combination of Tesla valve 201 and reversing valve 203, the flow path of the refrigerant in the heat exchanger body 1 is different in cooling mode and heating mode. At the same time, the flow direction of the flow channel is controlled by Tesla valve 201 as a non-moving part, which effectively eliminates mechanical wear and noise caused by the movement of mechanical valve body structure, reduces the pressure drop loss of air conditioning system 1000, and improves the reliability of heat exchanger assembly 100.

[0056] According to an embodiment of the present invention, the heat exchanger assembly 100 includes a heat exchanger body 1 and a control valve assembly. The heat exchanger body 1 has multiple heat exchange flow paths, including a first flow path 13 and a second flow path 14. The control valve assembly is used to ensure that the refrigerant in the heat exchanger body 1 flows differently in cooling and heating modes, thereby improving the performance of the heat exchanger assembly 100 under different operating conditions and increasing the overall efficiency of the heat exchanger assembly 100 and the air conditioner. Simultaneously, the control valve assembly, including a Tesla valve 201 and a one-way valve 202 or a reversing valve 203, effectively eliminates mechanical wear and noise caused by the movement of the mechanical valve body structure, reduces pressure drop loss in the air conditioning system 1000, and improves the reliability of the heat exchanger assembly 100.

[0057] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, when the control valve assembly includes a Tesla valve 201 and a check valve 202, the heat exchanger assembly 100 also includes a first flow divider 2.

[0058] The first diversion component 2 has a first connecting channel 21, a first main inlet / outlet 22, and a first branch port 23. The first main inlet / outlet 22 connects the first connecting channel 21 and the second flow path 14, and the first branch port 23 connects the first connecting channel 21 and the first flow path 13. The first diversion component 2 includes a first control valve 211 disposed in the first connecting channel 21. The resistance encountered by the fluid through the first control valve 211 in the direction from the first main inlet / outlet 22 to the first branch port 23 is the first resistance, and the resistance encountered by the fluid through the first control valve 211 in the direction from the first branch port 23 to the first main inlet / outlet 22 is the second resistance. The first resistance is greater than the second resistance.

[0059] It is understandable that, in the direction from the first main inlet / outlet 22 to the first branch port 23, the resistance of the fluid passing through the first control valve 211 is the first resistance, and in the direction from the first branch port 23 to the first main inlet / outlet 22, the resistance of the fluid passing through the first control valve 211 is the second resistance, with the first resistance being greater than the second resistance. It is understandable that this arrangement allows flow from the first branch port 23 to the first main inlet / outlet 22, with a large pressure drop from the first main inlet / outlet 22 to the first branch port 23, so that the first control valve 211 allows unidirectional flow of fluid from the first branch port 23 to the first main inlet / outlet 22.

[0060] Thus, by connecting the first connecting channel 21 and the second flow path 14 through the first main inlet and outlet 22, and connecting the first connecting channel 21 and the first flow path 13 through the first branch port 23, the fluid entering from the first main inlet and outlet 22 can only flow into the second flow path 14, and the fluid in the first flow path 13 can flow out from the first main inlet and outlet 22. This achieves a variety and flexibility in the flow path of the fluid in the heat exchange flow path, thereby realizing the switching effect of different numbers of flow paths in the heat exchanger assembly 100 in the cooling mode and the heating mode, so that the performance of the heat exchanger assembly 100 under different operating conditions is improved, and the overall efficiency of the heat exchanger assembly 100 is improved.

[0061] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 is used as a condenser, the fluid entering the heat exchanger body 1 is a refrigerant. Since the first control valve 211 allows the fluid to flow unidirectionally from the first branch port 23 to the first main inlet and outlet 22, after the fluid enters the heat exchanger body 1 from the first main inlet and outlet 22, it flows to the second flow path 14 and exchanges heat with the heat exchange flow path of the second flow path 14. After the fluid flows to the first flow path 13 and exchanges heat with the heat exchange flow path of the first flow path 13, it flows out of the heat exchanger body 1 or directly flows out of the heat exchanger body 1.

[0062] Understandably, when the heat exchanger assembly 100 is used as a condenser in cooling mode, the flow rate is the dominant factor affecting the performance of the heat exchanger assembly 100. By having the fluid flow through the second flow path 14, the number of branch paths is reduced, thus improving the performance of the heat exchanger assembly 100. Simultaneously, when the heat exchanger assembly 100 is used as a condenser in cooling mode, the pressure loss is relatively small, requiring a reduction in the number of branch paths to increase the fluid flow rate. This improves the overall heat transfer coefficient of the heat exchanger body 1 of the heat exchanger assembly 100 as a condenser. Therefore, with fewer branch paths and a faster flow rate, the heat transfer coefficient is larger, improving the heat exchange effect in superheated and high-dryness areas, thereby increasing the cooling efficiency of the air conditioner using this heat exchanger assembly 100.

[0063] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 is used as an evaporator, since the first control valve 211 allows the fluid to flow unidirectionally from the first branch port 23 to the first total inlet and outlet 22, the fluid entering the heat exchanger body 1 can flow to the second flow path 14 and the first flow path 13 and exchange heat with the heat exchange flow path of the second flow path 14 and the heat exchange flow path of the first flow path 13. The fluid in the first flow path 13 flows to the first branch port 23 and flows out of the heat exchanger body 1 through the first connecting channel 21 and the first total inlet and outlet 22. The fluid in the second flow path 14 flows out of the heat exchanger body 1 directly through the first total inlet and outlet 22.

[0064] Understandably, when the heat exchanger assembly 100 is used as an evaporator in heating mode, the reduction in the logarithmic mean temperature difference caused by pressure loss is the dominant factor affecting the performance of the heat exchanger assembly 100. It is necessary to appropriately increase the number of branch paths to reduce frictional resistance and temperature slip, thereby improving the heat transfer temperature difference and reducing the power consumption of the compressor 300. Therefore, by connecting the second flow path 14 in parallel with the first flow path 13, the fluid flows through more branch paths, avoiding the pressure loss problems caused by excessive fluid flow and excessively long flow paths. This reduces the pressure drop in fluid circulation, increases the heat exchange temperature difference with air, improves the heat exchange efficiency of the heat exchanger assembly 100, and thus improves the heating efficiency of the air conditioner using this heat exchanger assembly 100.

[0065] Compared to existing technologies that compensate for the impact of flow paths on the heat transfer coefficient by increasing the area of ​​the heat exchanger assembly 100 or increasing the frequency, leading to additional cost increases or power increases in the air conditioning system 1000, this application, through the first flow path 13 and the second flow path 14 in conjunction with the first flow divider 2, enables the fluid flow path within the heat exchange flow path to be diverse and flexible. This allows for the switching of different numbers of flow paths in the heat exchanger assembly 100 during cooling and heating modes, thereby improving the performance of the heat exchanger assembly 100 under different operating conditions.

[0066] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the heat exchanger assembly 100 also includes a second flow divider 3. The second flow divider 3 forms a second connecting channel 31, a second main inlet / outlet 32, and a second branch port 33. The second main inlet / outlet 32 ​​connects to the second connecting channel 31, and the second branch port 33 connects the second connecting channel 31 to the first flow path 13 and the second flow path 14. The second flow divider 3 includes a second control valve 311 disposed in the second connecting channel 31. Specifically, the resistance to fluid flow through the second control valve 311 in the direction from the second main inlet / outlet 32 ​​to the second branch port 33 is a third resistance, and the resistance to fluid flow through the second control valve 311 in the direction from the second branch port 33 to the second main inlet / outlet 32 ​​is a fourth resistance. The third resistance is less than the fourth resistance.

[0067] It is understandable that, such as Figure 1 , Figure 2 and Figure 3 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as a condenser, the first control valve 211 allows fluid to flow unidirectionally from the first branch port 23 to the first main inlet / outlet 22, and the second control valve 311 allows fluid to flow unidirectionally from the second main inlet / outlet 32 ​​to the second branch port 33. After entering the heat exchanger body 1 through the first main inlet / outlet 22, the fluid flows to the second flow path 14 and exchanges heat with the heat exchange path of the second flow path 14. Then, the fluid flows from the second flow path 14 to the first flow path 13 and exchanges heat with the heat exchange path of the first flow path 13. Finally, the fluid flows from the first flow path 13 to the second main inlet / outlet 32 ​​and exits the heat exchanger body 1.

[0068] Therefore, when the heat exchanger assembly 100 is used as a condenser in cooling mode, the flow rate is the dominant factor affecting the performance of the heat exchanger assembly 100. By having the fluid flow through the second flow path 14 and the first flow path 13, the number of branch paths is reduced, thus improving the performance of the heat exchanger assembly 100. Simultaneously, when the heat exchanger assembly 100 is used as a condenser in cooling mode, the pressure loss is relatively small, requiring a reduction in the number of branch paths to increase the fluid flow rate. This improves the overall heat transfer coefficient of the heat exchanger body 1 of the heat exchanger assembly 100 as a condenser. Consequently, by having fewer branch paths and a faster flow rate, the heat transfer coefficient is larger, improving the heat exchange effect of the fluid in the superheated and high-dryness regions, thereby increasing the cooling efficiency of the air conditioner using this heat exchanger assembly 100.

[0069] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as an evaporator, the first control valve 211 allows fluid to flow unidirectionally from the first branch port 23 to the first main inlet / outlet 22, and the second control valve 311 allows fluid to flow unidirectionally from the second main inlet / outlet 32 ​​to the second branch port 33. After flowing into the heat exchanger body 1 from the second main inlet / outlet 32, the fluid flows through the second connecting channel 31 and the second branch port 33 to the second flow path 14 and the first flow path 13. After exchanging heat with the heat exchange flow path of the second flow path 14 and the heat exchange flow path of the first flow path 13, the fluid in the first flow path 13 flows to the first branch port 23 and then flows out of the heat exchanger body 1 through the first connecting channel 21 and the first main inlet / outlet 22. The fluid in the second flow path 14 flows directly out of the heat exchanger body 1 through the first main inlet / outlet 22.

[0070] Therefore, when the heat exchanger assembly 100 is used as an evaporator in heating mode, the reduction in the logarithmic mean temperature difference caused by pressure loss is the dominant factor affecting the performance of the heat exchanger assembly 100. It is necessary to appropriately increase the number of branch paths to reduce frictional resistance and temperature slip, thereby improving the heat transfer temperature difference and reducing the power consumption of the compressor 300. Thus, by connecting the second flow path 14 in parallel with the first flow path 13, the fluid flows through more branch paths, avoiding the pressure loss problems caused by excessive fluid flow and excessively long flow paths. This reduces the pressure drop in fluid circulation, increases the heat exchange temperature difference with air, improves the heat exchange efficiency of the heat exchanger assembly 100, and consequently improves the heating efficiency of the air conditioner using this heat exchanger assembly 100.

[0071] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, one of the first control valve 211 and the second control valve 311 is a Tesla valve 201 and the other is a check valve 202.

[0072] It is understandable that when the first control valve 211 is a Tesla valve 201 and the second control valve 311 is a check valve 202, the Tesla valve 201 enables unidirectional flow of fluid from the first branch port 23 to the first main inlet / outlet 22, and the check valve 202 enables unidirectional flow of fluid from the second main inlet / outlet 32 ​​to the second branch port 33; or, when the first control valve 211 is a check valve 202 and the second control valve 311 is a Tesla valve 201, the check valve 202 enables unidirectional flow of fluid from the first branch port 23 to the first main inlet / outlet 22, and the Tesla valve 201 enables unidirectional flow of fluid from the second main inlet / outlet 32 ​​to the second branch port 33. Thus, the control valve assembly enables the refrigerant in the heat exchanger body 1 to flow differently in cooling and heating modes, thereby improving the performance of the heat exchanger assembly 100 under different operating conditions and increasing the overall efficiency of the heat exchanger assembly 100 and the air conditioner.

[0073] In some embodiments of this utility model, such as Figure 2 As shown, the first control valve 211 is a Tesla valve 201. The first control valve 211 is an independent component and is connected in the first communication channel 21.

[0074] Thus, by connecting the first control valve 211 to the first connecting channel 21, the flow from the first branch port 23 to the first main inlet / outlet 22 is realized. The pressure drop from the first main inlet / outlet 22 to the first branch port 23 is large, so that the first control valve 211 allows the fluid to flow unidirectionally from the first branch port 23 to the first main inlet / outlet 22.

[0075] Meanwhile, by making the first control valve 211 an independent component, the first control valve 211 is connected in the first communication channel 21, so that the independent component first control valve 211 can be designed, manufactured and tested independently. This makes it easy to select or optimize the parameters of Tesla valve 201 for different operating conditions (such as flow rate, pressure and media characteristics) without changing the overall structure of the first diversion component 2. Moreover, maintenance only requires replacing or repairing Tesla valve 201, reducing maintenance costs and system downtime.

[0076] In some embodiments of this utility model, such as Figure 2 As shown, the first control valve 211 is a Tesla valve 201, and a portion of the structure of the first connecting channel 21 forms the first control valve 211.

[0077] Thus, a first control valve 211 is formed through a part of the structure of the first connecting channel 21, so that the flow from the first branch port 23 to the first main inlet and outlet 22 is realized. The pressure drop from the first main inlet and outlet 22 to the first branch port 23 is large, so that the first control valve 211 allows the fluid to flow unidirectionally from the first branch port 23 to the first main inlet and outlet 22.

[0078] Meanwhile, a first control valve 211 is formed through a portion of the structure of the first connecting channel 21, so that the structure of the first diversion component 2 is more compact and suitable for space-constrained heat exchanger assembly 100. The formation of the first control valve 211 through a portion of the structure of the first connecting channel 21 reduces the number of parts and assembly steps, and lowers material, processing and assembly costs.

[0079] In some embodiments of this utility model, such as Figure 1 As shown, the second control valve 311 is a Tesla valve 201. The second control valve 311 is an independent component and is connected in the second communication channel 31.

[0080] Therefore, by connecting the second control valve 311 to the second connecting channel 31, the flow from the second main inlet / outlet 32 ​​to the second branch port 33 is realized. The pressure drop from the second branch port 33 to the second main inlet / outlet 32 ​​is large, so that the second control valve 311 allows the fluid to flow unidirectionally from the second main inlet / outlet 32 ​​to the second branch port 33.

[0081] Meanwhile, by making the second control valve 311 an independent component, the second control valve 311 is connected in the second communication channel 31, so that the independent component second control valve 311 can be designed, manufactured and tested independently. This makes it easy to select or optimize the parameters of Tesla valve 201 for different operating conditions (such as flow rate, pressure and media characteristics) without changing the overall structure of the second diversion component 3. Moreover, maintenance only requires replacing or repairing Tesla valve 201, reducing maintenance costs and system downtime.

[0082] In some embodiments of this utility model, such as Figure 1 As shown, the second control valve 311 is a Tesla valve 201, and a portion of the structure of the second connecting channel 31 forms the second control valve 311.

[0083] Thus, a second control valve 311 is formed through a part of the structure of the second connecting channel 31, so that the flow from the second main inlet / outlet 32 ​​to the second branch port 33 is realized. The pressure drop from the second branch port 33 to the second main inlet / outlet 32 ​​is large, so that the second control valve 311 allows the fluid to flow unidirectionally from the second main inlet / outlet 32 ​​to the second branch port 33.

[0084] Meanwhile, a second control valve 311 is formed through a portion of the structure of the second connecting channel 31, making the structure of the second diversion component 3 more compact and suitable for space-constrained heat exchanger assembly 100. The formation of the second control valve 311 through a portion of the structure of the second connecting channel 31 reduces the number of parts and assembly steps, thereby reducing material, processing and assembly costs.

[0085] In some embodiments of this utility model, the first diversion component 2 includes a first plate and a second plate, a first connecting channel 21, a first main inlet / outlet 22 and a first branch port 23 are formed on at least one of the first plate and the second plate, and a portion of the structure of the first connecting channel 21 forms a first control valve 211.

[0086] It is understood that a portion of the structure of the first connecting channel 21 forms the first control valve 211, which is a Tesla valve 201. The first diversion component 2 is a structure formed by stacking the first plate and the second plate, so that the first connecting channel 21, the first main inlet / outlet 22 and the first branch port 23 are formed on the first plate and the second plate, thereby simplifying the connection between the first control valve 211 and the first main inlet / outlet 22 and the first branch port 23, and reducing the volume of the first diversion component 2, so that the structure of the first diversion component 2 is more compact and suitable for heat exchanger assembly 100 with limited space.

[0087] Specifically, a first main inlet / outlet 22 and a first branch inlet 23 are formed on the first plate, and a first control valve 211 is formed on the second plate. The first plate and the second plate are combined to form a first connecting channel 21, and a part of the structure of the first connecting channel 21 forms the first control valve 211.

[0088] In some embodiments of the present invention, the second diversion component 3 includes a third plate and a fourth plate, a second connecting channel 31, a second main inlet / outlet 32 ​​and a second branch port 33 are formed on at least one of the third plate and the fourth plate, and a portion of the structure of the second connecting channel 31 forms a second control valve 311.

[0089] Understandably, a portion of the structure of the second connecting channel 31 forms the second control valve 311, which is a Tesla valve 201. The second diversion component 3 is a structure formed by stacking the third plate and the fourth plate, so that the second connecting channel 31, the second main inlet / outlet 32, and the second branch port 33 are formed on the third plate and the fourth plate. This simplifies the connection between the second control valve 311 and the second main inlet / outlet 32 ​​and the second branch port 33, and reduces the volume of the second diversion component 3, making the structure of the second diversion component 3 more compact and suitable for space-constrained heat exchanger assembly 100.

[0090] Specifically, a second main inlet / outlet 32 ​​and a second branch inlet 33 are formed on the third plate, and a second control valve 311 is formed on the fourth plate. The third plate and the fourth plate are combined to form a second connecting channel 31, and a part of the structure of the second connecting channel 31 forms the second control valve 311.

[0091] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the two ends of the first flow path 13 are the first end 131 and the second end 132, respectively. The first end 131 is connected to the first branch port 23 and the second main inlet / outlet 32, and the second end 132 is connected to the second branch port 33 and the second flow path 14. The first control valve 211 is connected between the first main inlet / outlet 22 and the first end 131, and the second control valve 311 is connected between the second end 132 and the second main inlet / outlet 32.

[0092] It is understandable that, since the first control valve 211 allows fluid to flow unidirectionally from the first branch port 23 to the first main inlet / outlet 22, and is connected between the first main inlet / outlet 22 and the first end 131, the fluid can only flow from the first end 131 through the first branch port 23 and the first connecting channel 21 to the first main inlet / outlet 22. Since the second control valve 311 allows fluid to flow unidirectionally from the second main inlet / outlet 32 ​​to the second branch port 33, and is connected between the second end 132 and the second main inlet / outlet 32, the fluid can only flow from the second main inlet / outlet 32 ​​through the second connecting channel 31 and the second branch port 33 to the second end 132.

[0093] Therefore, as Figures 1-3 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as a condenser, the fluid enters the heat exchanger body 1 through the first main inlet / outlet 22, flows to multiple second flow paths 14, exchanges heat with the heat exchange paths of the multiple second flow paths 14, then flows from the multiple second flow paths 14 to the second end 132 of the first flow path 13, exchanges heat with the heat exchange path of the first flow path 13, and finally flows from the first end 131 of the first flow path 13 to the second main inlet / outlet 32 ​​and exits the heat exchanger body 1. Figure 1 , Figure 2 and Figure 4 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as an evaporator, fluid flows into the heat exchanger body 1 through the second main inlet / outlet 32 ​​and then flows through the second connecting channel 31 and the second branch port 33 to the first end 131 of the multiple second flow paths 14 and the first flow path 13. After exchanging heat with the heat exchange paths of the multiple second flow paths 14 and the first flow path 13, the fluid in the first flow path 13 flows from the second end 132 to the first branch port 23 and then flows out of the heat exchanger body 1 through the first connecting channel 21 and the first main inlet / outlet 22. The fluid in the second flow paths 14 flows directly out of the heat exchanger body 1 through the first main inlet / outlet 22.

[0094] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, one end of the second flow path 14 is connected to the first main inlet / outlet 22, and the other end of the second flow path 14 is connected to the second main inlet / outlet 32 ​​and the first flow path 13. The second control valve 311 is connected between the second flow path 14 and the second main inlet / outlet 32. It can be understood that, since the second control valve 311 allows fluid to flow unidirectionally from the second main inlet / outlet 32 ​​to the second branch port 33, the connection between the second flow path 14 and the second main inlet / outlet 32 ​​via the second control valve 311 ensures that fluid can only flow from the second main inlet / outlet 32 ​​through the second connecting channel 31 and the second branch port 33 to the second flow path 14.

[0095] Therefore, as Figures 1-3 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as a condenser, the fluid enters the heat exchanger body 1 through the first main inlet / outlet 22 and flows to one end of a plurality of second flow paths 14. After exchanging heat with the heat exchange flow path of the plurality of second flow paths 14, the fluid flows from the other end of the plurality of second flow paths 14 to the second end 132 of the first flow path 13 and exchanges heat with the heat exchange flow path of the first flow path 13. After exchanging heat with the heat exchange flow path of the first flow path 13, the fluid flows from the first end 131 of the first flow path 13 to the second branch port 33 and flows out of the heat exchanger body 1 through the second connecting channel 31 and the second main inlet / outlet 32.

[0096] like Figure 1 , Figure 2 and Figure 4 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as an evaporator, fluid flows into the heat exchanger body 1 through the second main inlet / outlet 32, then flows through the second connecting channel 31 and the second branch port 33 to the other end of the plurality of second flow paths 14 and the first end 131 of the first flow path 13. After the fluid exchanges heat with the heat exchange paths of the plurality of second flow paths 14 and the heat exchange path of the first flow path 13, the fluid in the first flow path 13 flows from the second end 132 to the first branch port 23 and then flows out of the heat exchanger body 1 through the first connecting channel 21 and the first main inlet / outlet 22. The fluid in the second flow path 14 flows directly out of the heat exchanger body 1 from one end of the second flow path 14 through the first main inlet / outlet 22.

[0097] In some embodiments of this utility model, such as Figure 2As shown, the heat exchanger assembly 100 also includes a third flow divider 4. The third flow divider 4 forms a third connecting channel 41, a third inlet / outlet 42, and a fourth inlet / outlet 43. The third inlet / outlet 42 connects the third connecting channel 41 and the first flow path 13, and the fourth inlet / outlet 43 connects the third connecting channel 41 and the second total inlet / outlet 32. The third flow divider 4 includes a third control valve 411 disposed in the third connecting channel 41, which is connected between the first flow path 13 and the second total inlet / outlet 32. Specifically, the resistance to fluid flow through the third control valve 411 in the direction from the third inlet / outlet 42 to the fourth inlet / outlet 43 is the seventh resistance, and the resistance to fluid flow through the third control valve 411 in the direction from the fourth inlet / outlet 43 to the third inlet / outlet 42 is the eighth resistance. The seventh resistance is less than the eighth resistance.

[0098] Understandably, this configuration allows for the flow from the third inlet / outlet 42 to the fourth inlet / outlet 43, with a large pressure drop from the fourth inlet / outlet 43 to the third inlet / outlet 42. This enables the third control valve 411 to allow unidirectional flow of fluid from the third inlet / outlet 42 to the fourth inlet / outlet 43, thereby achieving unidirectional flow of fluid from the first flow path 13 to the second total inlet / outlet 32. When the heat exchanger body 1 of the heat exchanger assembly 100 functions as a condenser, it further ensures that the refrigerant flows from the first flow path 13 to the second total inlet / outlet 32 ​​and then out of the heat exchanger body 1. When the heat exchanger body 1 of the heat exchanger assembly 100 functions as an evaporator, it further ensures that the refrigerant flows from the first flow path 13 to the first total inlet / outlet 22 and then out of the heat exchanger body 1.

[0099] Specifically, such as Figure 2 and Figure 3 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as a condenser, the fluid enters the heat exchanger body 1 through the first main inlet / outlet 22, flows to one end of the second flow path 14, exchanges heat with the heat exchange path of the second flow path 14, and then flows from the other end of the second flow path 14 to one end of the first flow path 13 (e.g., ...). Figure 2 After the second end 132 (as shown) exchanges heat with the heat exchange flow path of the first flow path 13, the fluid flows from the other end of the first flow path 13 (as shown) Figure 2 The first end 131 shown flows to the third inlet / outlet 42, and then flows through the third inlet / outlet 42, the third connecting channel 41 and the fourth inlet / outlet 43 to the second total inlet / outlet 32 ​​before flowing out of the heat exchanger body 1.

[0100] like Figure 2 and Figure 4 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as an evaporator, the fluid flows into the heat exchanger body 1 through the second main inlet / outlet 32, then flows through the second connecting channel 31 and the second branch port 33 to the other end of the second flow path 14 and one end of the first flow path 13 (e.g., ...). Figure 2As shown in the first end 131), after the fluid exchanges heat with the heat exchange path of the second flow path 14 and the heat exchange path of the first flow path 13, the fluid in the first flow path 13 flows out from one end of the first flow path 13 (e.g., the first end 131). Figure 2 The fluid in the second flow path 14 flows directly out of the heat exchanger body 1 from one end of the second flow path 14 through the first general inlet and outlet 22.

[0101] In some embodiments of this utility model, such as Figure 2 As shown, the third control valve 411 is either a Tesla valve 201 or a check valve 202. It can be understood that when the third control valve 411 is a Tesla valve 201, the Tesla valve 201 enables unidirectional flow of fluid from the first flow path 13 to the second total inlet / outlet 32; or, when the third control valve 411 is a check valve 202, the check valve 202 enables unidirectional flow of fluid from the first flow path 13 to the second total inlet / outlet 32, further ensuring that the control valve assembly achieves different flow paths for the refrigerant within the heat exchanger body 1 in cooling and heating modes, thereby improving the performance of the heat exchanger assembly 100 under different operating conditions and enhancing the overall efficiency of the heat exchanger assembly 100 and the air conditioner.

[0102] For example, such as Figure 1 As shown, the first control valve 211 is a one-way valve 202, and the second control valve 311 is a Tesla valve 201; or, as Figure 2 As shown, the first control valve 211 and the second control valve 311 are Tesla valves 201, and the third control valve 411 is a check valve 202.

[0103] In some embodiments of this utility model, the third control valve 411 is a Tesla valve 201, the third control valve 411 is an independent component, and the third control valve 411 is connected in the third communication channel 41.

[0104] Thus, by connecting the third control valve 411 to the third connecting channel 41, the flow from the third inlet / outlet 42 to the fourth inlet / outlet 43 is realized. The pressure drop from the fourth inlet / outlet 43 to the third inlet / outlet 42 is large, so that the third control valve 411 allows the fluid to flow unidirectionally from the third inlet / outlet 42 to the fourth inlet / outlet 43.

[0105] Meanwhile, compared to mechanical valves that achieve unidirectional flow through valve core movement, which suffer from mechanical wear and seal aging due to friction of moving parts, abnormal noise caused by fluid pulsation during valve core opening and closing, and additional pressure drop due to turbulence caused by valve body structural gaps, the third control valve 411 of this application uses a Tesla valve 201. By using the Tesla valve 201 as a non-moving part to achieve unidirectional flow control of the flow path, it effectively eliminates mechanical wear and noise caused by the movement of the mechanical valve body structure, reduces pressure drop loss in the air conditioning system 1000, and improves the reliability of the heat exchanger assembly 100, while simultaneously enabling the switching of different numbers of flow paths in cooling and heating modes of the heat exchanger assembly 100.

[0106] In addition, by making the third control valve 411 an independent component, the third control valve 411 is connected in the third communication channel 41, so that the independent component third control valve 411 can be designed, manufactured and tested independently. This makes it easy to select or optimize the parameters of Tesla valve 201 for different operating conditions (such as flow rate, pressure and media characteristics) without changing the overall structure of the third flow divider 4. Moreover, maintenance only requires replacing or repairing Tesla valve 201, reducing maintenance costs and system downtime.

[0107] In some embodiments of this utility model, the third control valve 411 is a Tesla valve 201, and a portion of the structure of the third communication channel 41 forms the third control valve 411.

[0108] Thus, a third control valve 411 is formed through a part of the structure of the third connecting channel 41, so as to realize the flow from the third inlet / outlet 42 to the fourth inlet / outlet 43. The pressure drop from the fourth inlet / outlet 43 to the third inlet / outlet 42 is large, so that the third control valve 411 allows the fluid to flow unidirectionally from the third inlet / outlet 42 to the fourth inlet / outlet 43.

[0109] Meanwhile, compared to mechanical valves that achieve unidirectional flow through valve core movement, which suffer from mechanical wear and seal aging due to friction of moving parts, abnormal noise caused by fluid pulsation during valve core opening and closing, and additional pressure drop due to turbulence caused by valve body structural gaps, the third control valve 411 of this application uses a Tesla valve 201. By using the Tesla valve 201 as a non-moving part to achieve unidirectional flow control of the flow path, it effectively eliminates mechanical wear and noise caused by the movement of the mechanical valve body structure, reduces pressure drop loss in the air conditioning system 1000, and improves the reliability of the heat exchanger assembly 100, while simultaneously enabling the switching of different numbers of flow paths in cooling and heating modes of the heat exchanger assembly 100.

[0110] In addition, a third control valve 411 is formed through a portion of the structure of the third connecting channel 41, so that the structure of the third diversion component 4 is more compact and suitable for space-constrained heat exchanger assembly 100. The formation of the third control valve 411 through a portion of the structure of the third connecting channel 41 reduces the number of parts and assembly steps, and lowers material, processing and assembly costs.

[0111] In some embodiments of the present invention, the third diversion component 4 includes a fifth plate and a sixth plate, a third connecting channel 41, a third inlet / outlet 42 and a fourth inlet / outlet 43 are formed on at least one of the fifth plate and the sixth plate, and a portion of the structure of the third connecting channel 41 forms a third control valve 411.

[0112] Understandably, a portion of the structure of the third connecting channel 41 forms the third control valve 411, which is a Tesla valve 201. The third diversion component 4 is a structure formed by stacking the fifth plate and the sixth plate, so that the third connecting channel 41, the third inlet / outlet 42 and the fourth inlet / outlet 42 are formed on the fifth plate and the sixth plate. This simplifies the connection between the third control valve 411 and the third inlet / outlet 42 and the fourth inlet / outlet 42, and reduces the volume of the third diversion component 4, making the structure of the third diversion component 4 more compact and suitable for space-constrained heat exchanger assembly 100.

[0113] Specifically, a third inlet / outlet 42 and a fourth inlet / outlet 42 are formed on the fifth plate, and a third control valve 411 is formed on the sixth plate. The fifth plate and the sixth plate are combined to form a third connecting channel 41, and a part of the structure of the third connecting channel 41 forms the third control valve 411.

[0114] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the first flow path 13 includes a first sub-flow path 133 and a second sub-flow path 134. The two ends of the first sub-flow path 133 in the length direction are a third end 1331 and a fourth end 1332, respectively. The third end 1331 is connected to the second main inlet / outlet 32, and the fourth end 1332 is connected to the first main inlet / outlet 22. The two ends of the second sub-flow path 134 in the length direction are a fifth end 1341 and a sixth end 1342, respectively. The fifth end 1341 is connected to the second main inlet / outlet 32 ​​and the second flow path 14, respectively. The sixth end 1342 is connected to the fourth end 1332 and the first main inlet / outlet 22, respectively. A first control valve 211 is connected between the fourth end 1332 and the first main inlet / outlet 22 and between the sixth end 1342 and the first main inlet / outlet 22. The second control valve 311 is also connected between the fifth end 1341 and the second main inlet / outlet 32.

[0115] Understandably, because the first control valve 211 allows unidirectional flow of fluid from the first branch port 23 to the first main inlet / outlet 22, and is connected between the fourth end 1332 and the first main inlet / outlet 22, and between the sixth end 1342 and the first main inlet / outlet 22, fluid can only flow from the fourth end 1332 through the first branch port 23 and the first connecting channel 21 to the first main inlet / outlet 22, and from the sixth end 1342 through the first branch port 23 and the first connecting channel 21 to the first main inlet / outlet 22. Simultaneously, because the second control valve 311 allows unidirectional flow of fluid from the second main inlet / outlet 32 ​​to the second branch port 33, and is connected between the fifth end 1341 and the second main inlet / outlet 32, fluid can only flow from the second main inlet / outlet 32 ​​through the second connecting channel 31 and the second branch port 33 to the fifth end 1341.

[0116] Therefore, as Figures 1-3 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 acts as a condenser, the refrigerant enters the heat exchanger body 1 through the first main inlet / outlet 22 and flows to multiple second flow paths 14. After exchanging heat with the heat exchange paths of the multiple second flow paths 14, the refrigerant flows from the multiple second flow paths 14 to the fifth end 1341 of the second sub-flow path 134 and exchanges heat with the second sub-flow path 134. Then, the refrigerant flows from the sixth end 1342 of the second sub-flow path 134 to the fourth end 1332 of the first sub-flow path 133 and exchanges heat with the first sub-flow path 133. Finally, the refrigerant flows from the third end 1331 of the first sub-flow path 133 to the second main inlet / outlet 32 ​​and then flows out of the heat exchanger body 1. This results in fewer branching paths for the refrigerant, a faster flow rate, and a larger heat transfer coefficient, which improves the heat exchange effect of the refrigerant in the superheated zone and the dryness zone, thereby improving the cooling efficiency of the air conditioner using this heat exchanger assembly 100.

[0117] like Figure 1 , Figure 2 and Figure 4As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 functions as an evaporator, the refrigerant flows into the heat exchanger body 1 through the second main inlet / outlet 32, then flows through the second connecting channel 31 and the second branch port 33 to the third end 1331 of the first sub-flow path 133 and the fifth end 1341 of the second sub-flow path 134, respectively. After exchanging heat with the heat exchange paths of the multiple second flow paths 14, the first sub-flow path 133, and the second sub-flow path 134, the refrigerant flows directly from the multiple second flow paths 14 to the first main inlet / outlet 22 and then flows out of the heat exchanger body 1. The fourth end 1332 of the first sub-flow path 133 flows to the first branch port 23 and passes through the second main inlet / outlet 22 and the second branch port 33. A connecting channel 21 flows to the first main inlet / outlet 22 and then out of the heat exchanger body 1. The sixth end 1342 of the second sub-flow path 134 flows to the first branch port 23 and then through the first connecting channel 21 to the first main inlet / outlet 22 before flowing out of the heat exchanger body 1. This achieves parallel connection between multiple second flow paths 14 and the first sub-flow path 133 and the second sub-flow path 134, resulting in more branched paths for the refrigerant flow. This avoids the pressure loss problem caused by excessive refrigerant flow and excessively long flow paths, reduces the pressure drop of the refrigerant circulation, increases the temperature difference for heat exchange with the air, and improves the heat exchange efficiency of the heat exchanger assembly 100, thereby improving the heating efficiency of the air conditioner using the heat exchanger assembly 100.

[0118] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, there may be one or multiple second sub-flow paths 134 arranged in parallel. When there are multiple second sub-flow paths 134, the heat exchange tubes of the multiple second sub-flow paths 134 are arranged in the height direction of the heat exchanger body 1.

[0119] It is understandable that increasing the number of second sub-flow paths 134 can improve the heat exchange efficiency of the heat exchanger assembly 100 in heating mode. However, when the heat exchanger assembly 100 is used as a condenser in cooling mode, the flow rate has a dominant effect on the heat transfer coefficient, which is the dominant factor affecting the performance of the heat exchanger assembly 100. Therefore, the second sub-flow paths 134 can be set to one or multiple in parallel as needed, thereby improving the versatility of the heat exchanger assembly 100. At the same time, when there are multiple second sub-flow paths 134, the heat exchange tubes of the multiple second sub-flow paths 134 can be arranged in the height direction of the heat exchanger assembly 100, which can make more effective use of the space in the height direction of the heat exchanger assembly 100, making the structure of the heat exchanger assembly 100 more compact, reducing the volume occupied by the heat exchanger assembly 100 in the air conditioner, and facilitating the miniaturization of the air conditioner.

[0120] It should be noted that, Figure 1 and Figure 2Two second sub-flow paths 134 are shown for illustrative purposes, but those skilled in the art, after reading the following technical solution, will obviously understand that the solution can be applied to three or more second sub-flow paths 134, which also falls within the protection scope of this utility model.

[0121] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the heat exchange tubes of the second sub-flow path 134 and the heat exchange tubes of the first sub-flow path 133 are arranged sequentially along the height direction of the heat exchanger body 1. This arrangement allows for more efficient use of the space in the height direction of the heat exchanger assembly 100, resulting in a more compact structure and reducing the volume occupied by the heat exchanger assembly 100 in the air conditioner, thus facilitating the miniaturization of the air conditioner.

[0122] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, there are multiple second flow paths 14, and the heat exchange tubes of the multiple second flow paths 14 are arranged in the height direction of the heat exchanger body 1.

[0123] Therefore, as Figure 3 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 is used as a condenser, the fluid enters the heat exchanger body 1 through the first main inlet and outlet 22 and flows to multiple second flow paths 14. After exchanging heat with the heat exchange flow paths of the multiple second flow paths 14, the fluid can flow to the first flow path 13 and exchange heat with the heat exchange flow path of the first flow path 13, and then flow out of the heat exchanger body 1 through the second main inlet and outlet 32 ​​or directly flow out of the heat exchanger body 1 through the second diversion component 3.

[0124] like Figure 4 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 is used as an evaporator, the fluid enters the heat exchanger body 1 through the second main inlet and outlet 32 ​​and then flows through the second connecting channel 31 and the second branch port 33 to multiple second flow paths 14 and the first flow path 13. After the fluid exchanges heat with the heat exchange flow paths of the multiple second flow paths 14 and the heat exchange flow path of the first flow path 13, the fluid in the first flow path 13 flows to the first branch port 23 and then flows out of the heat exchanger body 1 through the first connecting channel 21 and the first main inlet and outlet 22. The fluid in the second flow path 14 flows out of the heat exchanger body 1 directly through the first main inlet and outlet 22.

[0125] Meanwhile, multiple heat exchange tubes of the second flow path 14 are arranged in the height direction of the heat exchanger assembly 100. This arrangement allows for more efficient use of the space in the height direction of the heat exchanger assembly 100, resulting in a more compact structure, reducing the volume occupied by the heat exchanger assembly 100 in the air conditioner, and facilitating the miniaturization of the air conditioner.

[0126] It should be noted that, Figure 1 The image shows four second flow paths 14 and Figure 2 The diagram shows two second flow paths 14 for illustrative purposes, but those skilled in the art, after reading the following technical solution, will obviously understand that the solution can be applied to three or more second flow paths 14, which also falls within the protection scope of this utility model.

[0127] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the heat exchange tubes of the second flow path 14 and the first flow path 13 are arranged along the height direction of the heat exchanger body 1. Therefore, this arrangement allows for more efficient use of the space in the height direction of the heat exchanger assembly 100, resulting in a more compact structure of the heat exchanger assembly 100, reducing the volume occupied by the heat exchanger assembly 100 in the air conditioner, and facilitating the miniaturization of the air conditioner.

[0128] In some embodiments, such as Figures 1-4 As shown, when the control valve assembly includes a Tesla valve 201 and a one-way valve 202, and the heat exchanger assembly 100 is applied to an air conditioner, the air conditioner includes a four-way valve 400. The first port 401 of the four-way valve 400 is connected to the exhaust port of the compressor 300, the third port 403 of the four-way valve 400 is connected to the return port of the compressor 300, the second port 402 of the four-way valve 400 is connected to one end of the indoor heat exchanger 500, the second total inlet / outlet 32 ​​is connected to the other end of the indoor heat exchanger 500, and the fourth port 404 of the four-way valve 400 is connected to the first total inlet / outlet 22. In this case, the first port 401 and the fourth port 404 are connected, and the second port 402 and the third port 403 are connected, or the first port 401 and the second port 402 are connected, and the third port 403 and the fourth port 404 are connected.

[0129] It is understandable that, such as Figure 3 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 is used as a condenser, the first port 401 and the fourth port 404 are connected, and the second port 402 and the third port 403 are connected. Since the first control valve 211 allows fluid to flow unidirectionally from the first branch port 23 to the first main inlet and outlet 22, the second control valve 311 allows fluid to flow unidirectionally from the second main inlet and outlet 32 ​​to the second branch port 33. Thus, the exhaust port of compressor 300 enters the heat exchanger body 1 through the first port 401, the fourth port 404 and the first total inlet / outlet 22, and flows into the heat exchange pipeline of the second flow path 14 for heat exchange. After heat exchange, the refrigerant flows into the heat exchange pipeline of the first flow path 13 and flows through the second total inlet / outlet 32 ​​to the indoor heat exchanger 500. After heat exchange in the indoor heat exchanger 500, the refrigerant flows from the indoor heat exchanger 500 through the second port 402 and the third port 403 into the return port of compressor 300, thereby forming a refrigerant circulation and achieving the cooling effect of air conditioning system 1000.

[0130] like Figure 4 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 acts as an evaporator, the first port 401 and the second port 402 are connected, and the third port 403 and the fourth port 404 are connected. Since the first control valve 211 allows fluid to flow unidirectionally from the first branch port 23 to the first main inlet / outlet 22, and the second control valve 311 allows fluid to flow unidirectionally from the second main inlet / outlet 32 ​​to the second branch port 33, the exhaust port of the compressor 300 enters the indoor heat exchanger 500 for heat exchange through the first port 401, the second port 402, and the first main inlet / outlet 22. After the refrigerant flows into the heat exchange pipes of the first flow path 13 and the second flow path 14 through the second main inlet / outlet 32 ​​for heat exchange, the refrigerant flows into the return port of the compressor 300 through the first flow path 13 and the second flow path 14 through the first main inlet / outlet 22, the fourth port 404, and the third port 403, thereby forming a refrigerant circulation and achieving the heating effect of the air conditioning system 1000.

[0131] In some embodiments of this utility model, such as Figures 5-10 As shown, when the control valve assembly includes a Tesla valve 201 and a reversing valve 203, the heat exchanger body 1 also includes a third total inlet / outlet 51, a fourth total inlet / outlet 52, and a fifth total inlet / outlet. One end of the first flow path 13 is connected to the third total inlet / outlet 51 and the fourth total inlet / outlet 52, and the other end is connected to the fifth total inlet / outlet and the second flow path 14. One end of the second flow path 14 is connected to the third total inlet / outlet 51 and the fourth total inlet / outlet 52, and the other end is connected to the fifth total inlet / outlet. The reversing valve 203 is used to connect the third total inlet / outlet 51 and the fourth total inlet / outlet 52, or connect the third total inlet / outlet 51 and the fifth total inlet / outlet. The Tesla valve 201 is connected between the end of the second flow path 14 connected to the third total inlet / outlet 51 and the end of the first flow path 13 connected to the fourth total inlet / outlet 52. In the direction from the third total inlet / outlet 51 to the second flow path 14, the resistance of the fluid passing through the Tesla valve 201 is the ninth resistance, and in the direction from the second flow path 14 to the third total inlet / outlet 51, the resistance of the fluid passing through the Tesla valve 201 is the tenth resistance, and the tenth resistance is greater than the ninth resistance.

[0132] It is understandable that, such as Figures 5-7 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 is used as a condenser, the reversing valve 203 is used to connect the third total inlet / outlet 51 and the fourth total inlet / outlet 52. Since the Tesla valve 201 allows the fluid to flow unidirectionally from the third total inlet / outlet 51 to the second flow path 14, the refrigerant entering the heat exchanger body 1 from the fourth total inlet / outlet 52 flows to the second flow path 14 and exchanges heat with the heat exchange flow path of the second flow path 14. After the fluid flows from the second flow path 14 to the first flow path 13 and exchanges heat with the heat exchange flow path of the first flow path 13, the fluid flows from the first flow path 13 to the third total inlet / outlet 51 and then flows out of the heat exchanger body 1.

[0133] like Figure 5 , Figure 8 and Figure 9 As shown, when the heat exchanger body 1 of the heat exchanger assembly 100 is used as an evaporator, the reversing valve 203 is used to connect the third total inlet / outlet 51 and the fifth total inlet / outlet. Since the Tesla valve 201 allows the fluid to flow unidirectionally from the third total inlet / outlet 51 to the second flow path 14, the refrigerant entering the heat exchanger body 1 from the third total inlet / outlet 51 flows to the heat exchange flow paths of the first flow path 13 and the second flow path 14 respectively for heat exchange, and then flows from the first flow path 13 and the second flow path 14 to the fifth total inlet / outlet and then flows out of the heat exchanger body 1.

[0134] Therefore, the control valve assembly formed by the combination of Tesla valve 201 and reversing valve 203 achieves different flow paths of refrigerant in the heat exchanger body 1 during cooling and heating modes, thereby improving the performance of heat exchanger assembly 100 under different operating conditions, increasing the overall efficiency of heat exchanger assembly 100 and air conditioner, effectively eliminating mechanical wear and noise caused by the movement of mechanical valve body structure, reducing pressure drop loss of air conditioning system 1000, and improving the reliability of heat exchanger assembly 100.

[0135] In some embodiments of this utility model, such as Figures 6-9 As shown, the reversing valve 203 has a first port 2031, a second port 2032, a third port 2033, a fourth port 2034, and a fifth port 2035. The first port 2031 is adapted to be connected to the exhaust port of the compressor 300, the third port 2033 is adapted to be connected to the return port of the compressor 300, the second port 2032 is adapted to be connected to one end of the indoor heat exchanger 500, the third total inlet / outlet 51 is adapted to be connected to the other end of the indoor heat exchanger 500, the fourth port 2034 is connected to the fifth total inlet / outlet 53, and the fifth port 2035 is connected to the fourth total inlet / outlet 52. In this case, the first port 2031 is connected to the fifth port 2035, the second port 2032 is connected to the third port 2033, or the first port 2031 is connected to the second port 2032, and the third port 2033 is connected to the fourth port 2034.

[0136] like Figure 6 and Figure 7As shown, in cooling mode, the first port 2031 of the reversing valve 203 is connected to the fifth port 2035, and the second port 2032 is connected to the third port 2033, so that the reversing valve 203 can achieve the connection of the third total inlet / outlet 51 and the fourth total inlet / outlet 52. Therefore, the compressor 300 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant enters the reversing valve 203 through the first port 2031 of the compressor 300's exhaust port, and then flows from the fifth port 2035 to the fourth total inlet / outlet 52 of the heat exchanger assembly 100. This allows the refrigerant entering the heat exchanger body 1 from the fourth total inlet / outlet 52 to flow into the second flow path 14 and exchange heat with the heat exchange path of the second flow path 14. The fluid then flows from the second flow path 14 to the first flow path 13 and exchanges heat with the heat exchange path of the first flow path 13. After that, the fluid flows from the first flow path 13 to the third total inlet / outlet 51 and then to the indoor heat exchanger 500. The indoor heat exchanger 500 can absorb heat. The refrigerant is heated and vaporized in the indoor heat exchanger 500, changing from a liquid state to a gaseous state, thereby carrying away the heat of the airflow flowing over the surface of the indoor heat exchanger 500. The low-temperature airflow is then sent 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 2032 of the reversing valve 203, and then flows from the third port 2033 to the return port to return to the compressor 300 for compression again, thereby forming a refrigerant cycle and achieving the cooling effect of the air conditioning system 1000.

[0137] like Figure 8 and Figure 9 As shown, in heating mode, the first port 2031 of the reversing valve 203 is connected to the second port 2032, and the third port 2033 and the fourth port 2034 are connected, so that the third total inlet / outlet 51 and the fifth total inlet / outlet 53 of the reversing valve 203 are connected. Thus, the compressor 300 compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant enters the reversing valve 203 through the first port 2031 of the compressor 300's exhaust port, and then flows to the indoor heat exchanger 500 from the second port 2032. The indoor heat exchanger 500 can exchange heat with the airflow flowing over its surface. The airflow absorbs heat, the refrigerant condenses and dissipates heat, and the high-temperature airflow is delivered into the room by the indoor unit of the air conditioner to achieve the purpose of heating. The refrigerant flows within the indoor heat exchanger 500 and releases heat into the indoor environment, thus changing from a gaseous state to a liquid state. The refrigerant flowing out of the indoor heat exchanger 500 then flows into the heat exchanger body 1 through the third main inlet / outlet 51 and flows to the heat exchange paths of the first flow path 13 and the second flow path 14 respectively. After heat exchange, it flows from the first flow path 13 and the second flow path 14 to the fifth main inlet / outlet 53 and then to the fourth port 2034. Finally, it flows from the third port 2033 to the return port to return to the compressor 300 for compression again, thereby forming a refrigerant cycle and achieving the heating effect of the air conditioning system 1000.

[0138] In some embodiments of this utility model, such as Figure 5 and Figure 10 As shown, there may be one or multiple first flow paths 13 arranged in parallel. When there are multiple first flow paths 13, the heat exchange tubes of the multiple first flow paths 13 are arranged in the height direction of the heat exchanger body 1. Thus, by arranging the first flow paths 13 as one or in parallel, different heat exchange requirements of the heat exchanger assembly 100 can be met, thereby improving the versatility of the heat exchanger assembly 100. At the same time, when there are multiple first flow paths 13, the heat exchange tubes of the multiple first flow paths 13 are arranged in the height direction of the heat exchanger body 1, which can more effectively utilize the space in the height direction of the heat exchanger assembly 100, making the structure of the heat exchanger assembly 100 more compact, reducing the volume occupied by the heat exchanger assembly 100 in the air conditioner, and facilitating the miniaturization of the air conditioner.

[0139] In some embodiments of this utility model, such as Figure 5 and Figure 10 As shown, there may be one or multiple second flow paths 14 arranged in parallel. When there are multiple second flow paths 14, the heat exchange tubes of the multiple second flow paths 14 are arranged in the height direction of the heat exchanger body 1. Therefore, by arranging the second flow paths 14 as one or in parallel, different heat exchange requirements of the heat exchanger assembly 100 can be met, thereby improving the versatility of the heat exchanger assembly 100. Simultaneously, when there are multiple second flow paths 14, the heat exchange tubes of the multiple second flow paths 14 are arranged in the height direction of the heat exchanger body 1, which can more effectively utilize the space in the height direction of the heat exchanger assembly 100, making the structure of the heat exchanger assembly 100 more compact, reducing the volume occupied by the heat exchanger assembly 100 in the air conditioner, and facilitating the miniaturization of the air conditioner.

[0140] In some embodiments of this utility model, such as Figure 5 and Figure 10 As shown, the heat exchange tubes of the second flow path 14 and the heat exchange tubes of the first flow path 13 are arranged sequentially along the height direction of the heat exchanger body 1. Therefore, this arrangement allows for more efficient use of the space in the height direction of the heat exchanger assembly 100, resulting in a more compact structure of the heat exchanger assembly 100, reducing the volume occupied by the heat exchanger assembly 100 in the air conditioner, and facilitating the miniaturization of the air conditioner.

[0141] It should be noted that, Figure 5 The diagram shows that there are two first flow paths 13 and two second flow paths 14; or, Figure 10 The diagram shows one first flow path 13 and three second flow paths 14 for illustrative purposes. However, those skilled in the art, after reading the following technical solution, will obviously understand that the solution can be applied to other numbers of first flow paths 13 and second flow paths 14, which would also fall within the protection scope of this utility model.

[0142] In some embodiments of this utility model, such as Figure 11As shown, the Tesla valve 201 includes an inflow section 6, an outflow section 7, and a valve assembly 8. The valve assembly 8 is located between and connected to both the inflow section 6 and the outflow section 7. The resistance encountered by the fluid through the valve assembly 8 in the direction from the inflow section 6 to the outflow section 7 is the fifth resistance, and the resistance encountered by the fluid through the valve assembly 8 in the direction from the outflow section 7 to the inflow section 6 is the sixth resistance. The fifth resistance is less than the sixth resistance. This arrangement allows for flow from the inflow section 6 to the outflow section 7, while the pressure drop is greater in the direction from the outflow section 7 to the inflow section 6, enabling the Tesla valve 201 to allow unidirectional flow of fluid through the valve assembly 8 from the inflow section 6 to the outflow section 7.

[0143] When the first control valve 211 is a Tesla valve 201, the first branch port 23 is connected to the inflow section 6, and the first total inlet / outlet 22 is connected to the outflow section 7. The Tesla valve 201 allows the fluid to flow unidirectionally from the inflow section 6 to the outflow section 7 through the valve group 8, thereby realizing the unidirectional flow of the fluid from the first branch port 23 to the first total inlet / outlet 22.

[0144] When the second control valve 311 is a Tesla valve 201, the second main inlet / outlet 32 ​​is connected to the inflow section 6, and the second branch port 33 is connected to the outflow section 7. The Tesla valve 201 allows the fluid to flow unidirectionally from the inflow section 6 to the outflow section 7 through the valve group 8, thereby realizing the unidirectional flow of the fluid from the second main inlet / outlet 32 ​​to the second branch port 33.

[0145] Furthermore, when the heat exchanger assembly 100 includes a third control valve 411 and the third control valve 411 is a Tesla valve 201, the third inlet and outlet 42 are connected to the inflow section 6 and the fourth inlet and outlet 43 are connected to the outflow section 7. The Tesla valve 201 allows the fluid to flow unidirectionally from the inflow section 6 to the outflow section 7 through the valve group 8, thereby realizing the unidirectional flow of the fluid from the third inlet and outlet 42 to the fourth inlet and outlet 43.

[0146] In some embodiments of this utility model, such as Figure 11 As shown, the valve assembly 8 includes valve units 81 and a connecting section 82. Multiple valve units 81 are arranged along the direction from the inflow section 6 to the outflow section 7. Any two adjacent valve units 81 are connected and communicate with each other through the connecting section 82. The valve unit 81 closest to the inflow section 6 is connected to the inflow section 6, and the valve unit 81 closest to the outflow section 7 is connected to the outflow section 7. Thus, the medium entering the Tesla valve 201 through the inflow section 6 first flows into the valve unit 81 connected to the inflow section 6, and then sequentially flows into other valve units 81. Finally, it flows out from the valve unit 81 connected to the outflow section 7 and exits. Simultaneously, since any two adjacent valve units 81 are connected and communicate with each other through the connecting section 82, the connecting section 82 enables communication between any two adjacent valve units 81.

[0147] In some embodiments of this utility model, such as Figure 11 As shown, the length of the connecting segment 82 is 2mm-10mm. It is understandable that if the length of the connecting segment 82 is too short, it will not be possible to connect two adjacent valve units 81, while if the length of the connecting segment 82 is too long, it will reduce the unidirectional conductivity of the Tesla valve 201 (unidirectional conductivity is the ratio of reverse pressure drop to forward pressure drop; according to the inventor's testing, unidirectional conductivity decreases as the length of the connecting segment 82 increases). Therefore, by limiting the length of the connecting segment 82 to 2mm-10mm, the connection between any two adjacent valve units 81 is ensured while minimizing the impact on the unidirectional conductivity of the Tesla valve 201, thereby improving the reliability of the Tesla valve 201.

[0148] It should be noted that the length of the connected segment 82 can be 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm.

[0149] In some embodiments of this utility model, the number of valve units 81 ranges from 4 to 20. It is understood that too few valve units 81 will result in insufficient reverse resistance, leading to poor shut-off performance. Conversely, too many valve units 81, while improving shut-off performance, will increase resistance during forward flow, affecting transmission efficiency. Furthermore, according to the utility model's experimental certification, unidirectional conductivity (the ratio of reverse pressure drop to forward pressure drop) increases with the number of stages, gradually approaching a limit. Therefore, by limiting the number of valve units 81 to 4-20, the Tesla valve 201 can be guaranteed to have both forward flow and large reverse pressure drop characteristics, improving its reliability.

[0150] It should be noted that the number of valve units 81 can be 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20, for example, as shown below. Figure 1 , Figure 4 and Figure 7 The Tesla valve 201 shown has 7 valve units 81.

[0151] In some embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 5 , Figure 10 and Figure 11As shown, the inflow section 6 extends along the height direction of the heat exchanger assembly 100, the outflow section 7 extends along the height direction of the heat exchanger assembly 100, and multiple valve units 81 are arranged along the height direction of the heat exchanger assembly 100. Therefore, this arrangement allows for more efficient use of the space in the height direction of the heat exchanger assembly 100, resulting in a more rational layout of the heat exchanger assembly 100, a more compact structure, reduced volume occupied by the heat exchanger assembly 100 in the air conditioner, and easier miniaturization of the air conditioner.

[0152] In some embodiments of this utility model, such as Figure 11 and Figure 12 As shown, valve unit 81 includes an arc segment 811, a first straight segment 812, and a second straight segment 813. The end of the first straight segment 812 near the inflow segment 6 and the end of the second straight segment 813 near the inflow segment 6 are respectively connected to the two ends of the arc segment 811 along its length. The other ends of the first straight segment 812 and the second straight segment 813 are connected to each other. The connecting segment 82 is connected to the first straight segment 812 or the second straight segment 813 of two adjacent valve units 81. The end of the first straight segment 812 of the valve unit 81 closest to the inflow segment 6 that is connected to the arc segment 811 is connected to the inflow segment 6. The end of the second straight segment 813 of the valve unit 81 closest to the outflow segment 7 that is connected to the arc segment 811 is connected to the outflow segment 7.

[0153] It is understandable that, among the two valve units 81 connected to the connecting section 82, the first straight segment 812 of the valve unit 81 closest to the inflow section 6 and the second straight segment 813 of the valve unit 81 closest to the outflow section 7 are connected to the connecting section 82. The second straight segment 813 of the valve unit 81 closest to the outflow section 7 is connected to the connecting section 82 at the end away from the outflow section 7. Among the multiple valve units 81, the first straight segment 812 of the valve unit 81 closest to the inflow section 6 is connected to the inflow section 6 at the end of the valve unit 81 closest to the outflow section 7 at the end of the valve unit 81 closest to the outflow section 7 at the end of the valve unit 81 closest to the outflow section 7 is connected to the outflow section 7.

[0154] Thus, during the flow of the medium from the inflow section 6 to the outflow section 7, the medium first flows from the inflow section 6 to the first straight segment 812 of the valve unit 81 closest to the inflow section 6, then flows into the connecting section 82, and from the connecting section 82 to the second straight segment 813 of the other valve unit 81 among the two adjacent valve units 81, then flows into another connecting section 82, and from the connecting section 82 to the second straight segment 813 of the other valve unit 81 among the two adjacent valve units 81, and so on, until the medium flows into the second straight segment 813 of the valve unit 81 closest to the outflow section 7, and from the second straight segment 813 to the outflow section 7, and finally flows out from the outflow section 7, thereby realizing that the conduction direction of the valve group 8 is from the inflow section 6 to the outflow section 7.

[0155] In some embodiments of this utility model, such as Figure 11 and Figure 12 As shown, on the projection plane perpendicular to the axis of the arc segment 811, the width of the inflow segment 6 (as shown) Figure 12 As shown, L) is 1mm-7mm. It is understandable that on the projection plane perpendicular to the axis of the arc segment 811, if the width of the inflow section 6 is too small, the fluid velocity is forced to increase during reverse flow, easily inducing turbulence. Conversely, if the width of the inflow section 6 is too large, the fluid cannot form an effective vortex, resulting in insufficient pressure loss. Therefore, on the projection plane perpendicular to the axis of the arc segment 811, limiting the width of the inflow section 6 to 1mm-7mm ensures both the reverse flow obstruction function of the Tesla valve 201 and the pressure of the medium flowing within the channel, thus improving the reliability of the Tesla valve 201.

[0156] like Figure 12 As shown, the simulation results of the Tesla valve 201 on the projection plane perpendicular to the axis of the arc segment 811, with the width of the inflow segment 6 being 7mm, 5mm, and 3mm respectively, can be seen that the results of forward pressure, forward velocity, reverse pressure, and reverse velocity are all good.

[0157] It should be noted that on the projection plane perpendicular to the axis of the arc segment 811, the width of the inflow segment 6 can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm or 7mm.

[0158] Furthermore, on the projection plane perpendicular to the axis of the arc segment 811, the inflow segment 6 is rectangular with a width of 1mm-7mm. On the projection plane perpendicular to the axis of the arc segment 811, the inflow segment 6 is square. The width of the inflow segment 6 is calculated based on the equivalent diameter.

[0159] In some embodiments of this utility model, such as Figure 11 and Figure 12As shown, the distance between the inner and outer walls of the arc segment 811 in the radial direction is the same as the width of the projection surface of the inflow segment 6 in the direction perpendicular to the axis of the arc segment 811.

[0160] It is understandable that, since one end of the inflow section 6 is connected to the first connecting section 812 and the arc section 811 of the valve unit 81 closest to the inflow section 6, the distance between the inner and outer wall surfaces of the arc section 811 in the radial direction is limited to be the same as the width of the projection surface of the inflow section 6 in the direction perpendicular to the axis of the arc section 811, so that the flow of the flowing medium is smoother and turbulence and pressure loss are reduced.

[0161] In some embodiments of this utility model, such as Figure 11 and Figure 12 As shown, the inflow section 6 and the arc segment 811 of the valve unit 81 closest to the inflow section 6 among the multiple valve units 81 have an intersection point (e.g., Figure 12 The angle between the extension direction of the inflow segment 6 and the tangent of the arc segment 811 at the intersection point is θ, and satisfies 5°≤θ≤30°.

[0162] Understandably, if the angle between the extension direction of inflow section 6 and the tangent at the intersection point of arc segment 811 is too small, the medium flowing in from inflow section 6 will impact arc segment 811 due to the small angle, generating local high-pressure areas and turbulence, increasing energy loss. If the angle between the extension direction of inflow section 6 and the tangent at the intersection point of arc segment 811 is too large, the medium flowing in from inflow section 6 will have difficulty smoothly turning along arc segment 811 due to the large angle, causing the flow direction to deviate from the design path and reducing forward flow performance. Therefore, by limiting the angle between the extension direction of inflow section 6 and the tangent at the intersection point of arc segment 811 to between 5° and 30°, low resistance in forward flow is ensured, guaranteeing forward pressure and forward velocity, and improving the reliability of Tesla valve 201.

[0163] It should be noted that the angle between the extension direction of the inflow segment 6 and the tangent of the arc segment 811 at the intersection point can be 5°, 10°, 15°, 20°, 25° or 30°.

[0164] The following describes an air conditioner according to an embodiment of the present invention.

[0165] An air conditioner according to an embodiment of the present invention includes a heat exchanger assembly 100.

[0166] According to an embodiment of the present invention, an air conditioner includes a heat exchanger assembly 100, which comprises a heat exchanger body 1 and a control valve assembly. The heat exchanger body 1 has multiple heat exchange flow paths, including a first flow path 13 and a second flow path 14. The control valve assembly is used to ensure that the refrigerant in the heat exchanger body 1 flows differently in cooling and heating modes, thereby improving the performance of the heat exchanger assembly 100 under different operating conditions and increasing the overall efficiency of the air conditioner. Simultaneously, the control valve assembly, including a Tesla valve 201 and a one-way valve 202 or a reversing valve 203, effectively eliminates mechanical wear and noise caused by the movement of the mechanical valve body structure, reduces pressure drop loss in the air conditioning system 1000, and improves the reliability of the air conditioner.

[0167] Other components and operations of the air conditioner according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0168] 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.

[0169] 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 heat exchanger assembly for use in an air conditioner, characterized in that, include: A heat exchanger body, the heat exchanger body having multiple heat exchange flow paths including a first flow path and a second flow path; A control valve assembly, comprising a Tesla valve and a check valve or a reversing valve, is used to enable different flow paths of the refrigerant within the heat exchanger body in cooling mode and heating mode.

2. The heat exchanger assembly of claim 1, wherein, When the control valve assembly includes the Tesla valve and the check valve, the heat exchanger assembly further includes: A first diversion component has a first connecting channel, a first main inlet and outlet and a first branch port. The first main inlet and outlet connect the first connecting channel and the second flow path. The first branch port connects the first connecting channel and the first flow path. The first diversion component includes a first control valve disposed in the first connecting channel. Wherein, the resistance of the fluid passing through the first control valve in the direction from the first main inlet / outlet to the first branch port is the first resistance, and the resistance of the fluid passing through the first control valve in the direction from the first branch port to the first main inlet / outlet is the second resistance, and the first resistance is greater than the second resistance.

3. The heat exchanger assembly of claim 2, wherein, Also includes: The second diversion component has a second connecting channel, a second main inlet and outlet, and a second branch port. The second main inlet and outlet are connected to the second connecting channel, and the second branch port is connected to the second connecting channel and the first flow path and the second flow path. The second diversion component includes a second control valve disposed in the second connecting channel. Specifically, the resistance of the fluid passing through the second control valve in the direction from the second main inlet / outlet to the second branch outlet is the third resistance, and the resistance of the fluid passing through the second control valve in the direction from the second branch outlet to the second main inlet / outlet is the fourth resistance, wherein the third resistance is less than the fourth resistance.

4. The heat exchanger assembly of claim 3, wherein, One of the first control valve and the second control valve is the Tesla valve, and the other is the check valve.

5. The heat exchanger assembly of claim 3, wherein, Also includes: The third diversion component has a third connecting channel, a third inlet and outlet, and a fourth inlet and outlet. The third inlet and outlet connect the third connecting channel and the first flow path, and the fourth inlet and outlet connect the third connecting channel and the second total inlet and outlet. The third diversion component includes a third control valve disposed in the third connecting channel, and the third control valve is connected between the first flow path and the second total inlet and outlet. Specifically, the resistance of the fluid passing through the third control valve in the direction from the third inlet / outlet to the fourth inlet / outlet is the seventh resistance, and the resistance of the fluid passing through the third control valve in the direction from the fourth inlet / outlet to the third inlet / outlet is the eighth resistance. The seventh resistance is less than the eighth resistance.

6. The heat exchanger assembly of claim 5, wherein, The third control valve is either the Tesla valve or the check valve.

7. The heat exchanger assembly of claim 3, wherein The first flow path includes: The first sub-flow path has a third end and a fourth end at its two ends along its length, the third end being connected to the second main inlet and outlet, and the fourth end being connected to the first main inlet and outlet. The second sub-flow path has a fifth end and a sixth end at its two ends along its length. The fifth end is connected to both the second main inlet / outlet and the second flow path. The sixth end is connected to both the fourth end and the first main inlet / outlet. The first control valve is connected between the fourth end and the first main inlet / outlet, and between the sixth end and the first main inlet / outlet; the second control valve is also connected between the fifth end and the second main inlet / outlet.

8. The heat exchanger assembly of claim 7, wherein, The second sub-flow path can be one or multiple sub-flow paths arranged in parallel. When there are multiple second sub-flow paths, the heat exchange tubes of the multiple second sub-flow paths are arranged in the height direction of the heat exchanger body. And / or, the heat exchange tubes of the second sub-flow path and the heat exchange tubes of the first sub-flow path are arranged sequentially along the height direction of the heat exchanger body.

9. The heat exchanger assembly of any one of claims 2-8, wherein, There are multiple second flow paths, and the heat exchange tubes of the multiple second flow paths are arranged in the height direction of the heat exchanger body; And / or, the heat exchange tubes of the second flow path and the heat exchange tubes of the first flow path are arranged along the height direction of the heat exchanger body.

10. The heat exchanger assembly of claim 1, wherein, When the control valve assembly includes the Tesla valve and the reversing valve, the heat exchanger body further includes a third main inlet / outlet, a fourth main inlet / outlet, and a fifth main inlet / outlet. One end of the first flow path is connected to the third and fourth main inlet / outlet, and the other end is connected to the fifth main inlet / outlet and the second flow path. One end of the second flow path is connected to the third and fourth main inlet / outlet, and the other end is connected to the fifth main inlet / outlet. The reversing valve is used to connect the third main inlet and outlet and the fourth main inlet and outlet, or connect the third main inlet and outlet and the fifth main inlet and outlet. The Tesla valve is connected between the end of the second flow path connected to the third main inlet and outlet and the end of the first flow path connected to the fourth main inlet and outlet. In the direction from the third main inlet and outlet to the second flow path, the resistance of the fluid passing through the Tesla valve is the ninth resistance, and in the direction from the second flow path to the third main inlet and outlet, the resistance of the fluid passing through the Tesla valve is the tenth resistance. The tenth resistance is greater than the ninth resistance.

11. The heat exchanger assembly according to claim 10, characterized in that, The reversing valve has a first port, a second port, a third port, a fourth port, and a fifth port. The first port is adapted to communicate with the exhaust port of the compressor, the third port is adapted to communicate with the return port of the compressor, the second port is adapted to communicate with one end of the indoor heat exchanger, the third main inlet / outlet is adapted to communicate with the other end of the indoor heat exchanger, the fourth port is connected to the fifth main inlet / outlet, and the fifth port is connected to the fourth main inlet / outlet. Wherein, the first port is connected to the fifth port, the second port is connected to the third port, or the first port is connected to the second port, and the third port is connected to the fourth port.

12. The heat exchanger assembly of claim 10 or 11, wherein, The first flow path can be one or multiple flow paths arranged in parallel. When there are multiple flow paths, the heat exchange tubes of the multiple flow paths are arranged in the height direction of the heat exchanger body. And / or, the second flow path is one or multiple flow paths arranged in parallel. When there are multiple flow paths, the heat exchange tubes of the multiple flow paths are arranged in the height direction of the heat exchanger body. And / or, the heat exchange tubes of the second flow path and the heat exchange tubes of the first flow path are arranged sequentially along the height direction of the heat exchanger body.

13. An air conditioner characterized by comprising: Includes the heat exchanger assembly according to any one of claims 1-12.

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