Whistle-type tube, heat exchanger assembly and air conditioner with same

Abstract

The utility model discloses a flute type pipe, heat exchanger subassembly and have its air conditioner, flute type pipe includes: main pipe section, form on main pipe section and have refrigerant import and export, main pipe section has a plurality of through -holes, a plurality of through -holes interval setting along the length direction of main pipe section, medium flows to a plurality of through -holes from refrigerant import and export, or, medium flows to refrigerant import and export from a plurality of through -holes, one -way throttle valve, at least partial two through -holes of adjacent between being equipped with one -way throttle valve, one -way throttle valve is used to throttle to the medium of flowing to at least partial through -hole from refrigerant import and export and is used to not throttle and is conducted to the medium of flowing to refrigerant import and export from at least partial through -hole. According to the flute type pipe of the utility model, can play good shunt effect, when flute type pipe is applied to heat exchanger subassembly, can improve the heat exchange efficiency of heat exchanger body, guarantee the heat exchange performance of heat exchanger subassembly, improve energy efficiency.

Description

Technical Field

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

[0002] In existing technologies, for gas-liquid two-phase refrigerants, the influence of refrigerant dynamic pressure results in excessive refrigerant in the far-end branch of the flute tube, leading to uneven flow distribution, insufficient heat exchange performance, low capacity, and low energy efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a flute-shaped tube, which can achieve a better flow distribution effect. When the flute-shaped tube is applied to a heat exchanger assembly, it can improve the heat exchange efficiency of the heat exchanger body, ensure the heat exchange performance of the heat exchanger assembly, and improve energy efficiency.

[0004] This utility model also proposes a heat exchanger assembly, which includes the aforementioned flute-shaped tube.

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

[0006] According to an embodiment of the present invention, the flute-shaped tube includes: a main pipe section having a refrigerant inlet and outlet, a plurality of connecting holes being spaced apart along the length of the main pipe section, wherein a medium flows from the refrigerant inlet and outlet to the plurality of connecting holes, or the medium flows from the plurality of connecting holes to the refrigerant inlet and outlet; and a one-way throttle valve being provided between at least some of two adjacent connecting holes, the one-way throttle valve being used to throttle the medium flowing from the refrigerant inlet and outlet to at least some of the connecting holes and to allow the medium flowing from at least some of the connecting holes to the refrigerant inlet and outlet without throttling.

[0007] According to an embodiment of the present invention, the flute-shaped tube includes a main pipe section and a one-way throttle valve. The main pipe section has a refrigerant inlet and outlet and multiple connecting holes. A one-way throttle valve is provided between at least some of the adjacent connecting holes. The one-way throttle valve is used to throttle the medium flowing from the refrigerant inlet and outlet to the partially connected holes and to allow the medium flowing from the at least some connecting holes to the refrigerant inlet and outlet without throttling. When the medium flows from the refrigerant inlet and outlet to the at least some connecting holes, it can reduce the flow rate of the medium flowing to the side of the one-way throttle valve away from the refrigerant inlet and outlet, and relatively increase the flow rate of the medium flowing to the connecting holes closer to the refrigerant inlet and outlet, thereby achieving a better flow diversion effect. When the flute-shaped tube is applied to a heat exchanger assembly, it can improve the heat exchange efficiency of the heat exchanger body, ensure the heat exchange performance of the heat exchanger assembly, and improve energy efficiency.

[0008] In addition, the flute-shaped tube according to this utility model may also have the following additional technical features:

[0009] In some embodiments, the plurality of communication holes include at least one first communication hole disposed between the refrigerant inlet / outlet and the one-way throttle valve, wherein the medium flowing from the refrigerant inlet / outlet to the first communication hole does not pass through the one-way throttle valve, and the medium flowing from the first communication hole to the refrigerant inlet / outlet does not pass through the one-way throttle valve.

[0010] In some embodiments, the distance between the upper edge of the first connecting hole and the end of the one-way throttle valve closest to the first connecting hole is less than or equal to 100 mm.

[0011] In some embodiments, the plurality of connecting holes includes at least one second connecting hole disposed at the end of the one-way throttle valve away from the refrigerant inlet and outlet. The medium flowing from the refrigerant inlet and outlet to the second connecting hole passes through the one-way throttle valve and is throttled by the one-way throttle valve, while the medium flowing from the second connecting hole to the refrigerant inlet and outlet passes through the one-way throttle valve and is not throttled by the one-way throttle valve.

[0012] In some embodiments, the distance between the lower edge of the second connecting hole and the end of the one-way throttle valve near the second connecting hole is greater than or equal to 20 mm.

[0013] In some embodiments, the one-way throttle valve has a first valve port and a second valve port, the first valve port being connected to the refrigerant inlet and outlet, and the second valve port being connected to at least a portion of the connecting hole. In the flow direction from the first valve port to the second valve port, the one-way throttle valve is a throttling element, and in the flow direction from the second valve port to the first valve port, the one-way throttle valve does not throttle the flow.

[0014] In some embodiments, the one-way throttle valve includes: a housing fixedly connected to the main pipe section; a first valve port and a second valve port both disposed on the housing; the first valve port being disposed at the end of the housing near the refrigerant inlet / outlet; and the second valve port being disposed at the end of the housing away from the refrigerant inlet / outlet; the housing further having a first cavity communicating with the second cavity; and a valve core movably disposed within the housing; the first cavity being located on the side of the valve core opposite to the first valve port; the valve core having a flow-reducing orifice connected to... The first cavity and the first valve port are connected. The diameter of the flow-reducing orifice is smaller than the diameter of the first valve port. The valve core has a first limit position and a second limit position. In the first limit position, the end of the valve core near the refrigerant inlet and outlet abuts against the inner wall of the housing where the first valve port is located, and the end of the valve core away from the refrigerant inlet and outlet is spaced apart from the second valve port. In the second limit position, the end of the valve core near the refrigerant inlet and outlet is spaced apart from the first valve port, and the end of the valve core away from the refrigerant inlet and outlet abuts against the inner wall of the first cavity.

[0015] In some embodiments, there are multiple one-way throttle valves, with a connecting hole between two adjacent one-way throttle valves, and the diameter of the flow-reducing holes of the multiple one-way throttle valves gradually decreases in the direction away from the refrigerant inlet and outlet.

[0016] In some embodiments, the valve core further has a second cavity located at one end of the flow-reducing orifice facing the first valve port, for communicating the flow-reducing orifice and the first valve port.

[0017] In some embodiments, the housing further includes a third cavity located on the side of the valve core near the first valve port and communicating with the first valve port. The valve core includes: a body segment disposed within the housing, the first cavity and the third cavity being located on opposite sides of the body segment along the length direction of the flute tube, the body segment having a first through hole communicating with the third cavity; and a blocking segment disposed on the side of the body segment facing the first cavity. In a cross-section perpendicular to the length direction of the flute tube, the cross-sectional area of ​​the blocking segment is smaller than the cross-sectional area of ​​the body segment. The blocking segment has a second through hole and the flow-reducing hole, the second through hole being used to connect the first through hole and the first cavity, the second through hole and the first through hole together forming the second cavity.

[0018] In some embodiments, the main pipe section is a single piece, and the one-way throttle valve is fixed inside the main pipe section; or, the main pipe section includes multiple sub-pipe sections, the multiple sub-pipe sections are arranged and spaced apart along the length of the flute tube, each sub-pipe section is provided with the connecting hole, the multiple sub-pipe sections are separate pieces, and the one-way throttle valve is connected between two adjacent sub-pipe sections.

[0019] In some embodiments, the flute-shaped tube further includes: a plurality of branch pipe segments, the branch pipe segments being disposed at the connecting holes, and the plurality of branch pipe segments corresponding one-to-one with the plurality of connecting holes.

[0020] In some embodiments, the main pipe section is welded to the one-way throttle valve.

[0021] The heat exchanger assembly according to an embodiment of the present invention includes: a heat exchanger body having a plurality of heat exchange tubes; a manifold disposed on one side of the heat exchanger body and communicating with the heat exchange tubes; and a flute-shaped tube disposed on the side of the heat exchanger body opposite to the manifold, or the flute-shaped tube and the manifold disposed on the same side of the heat exchanger body, the flute-shaped tube communicating with the heat exchange tubes, and the medium being adapted to flow from one of the flute-shaped tube and the manifold to the other.

[0022] According to the embodiments of the present invention, the heat exchanger assembly includes a flute-shaped tube, comprising a main pipe section and a one-way throttling valve. The main pipe section has a refrigerant inlet / outlet and multiple connecting holes. A one-way throttling valve is provided between at least some of the adjacent connecting holes. The one-way throttling valve is used to throttle the medium flowing from the refrigerant inlet / outlet to the partially connected holes and to allow the medium flowing from the at least some connecting holes to the refrigerant inlet / outlet without throttling. When the medium flows from the refrigerant inlet / outlet to the at least some connecting holes, the flow rate of the medium flowing towards the one-way throttling valve away from the refrigerant inlet / outlet is reduced, while the flow rate of the medium flowing towards the connecting holes closer to the refrigerant inlet / outlet is relatively increased, thereby achieving a better flow diversion effect. When the flute-shaped tube is applied to the heat exchanger assembly, it can improve the heat exchange efficiency of the heat exchanger body, ensure the heat exchange performance of the heat exchanger assembly, and improve energy efficiency.

[0023] An air conditioner according to an embodiment of the present invention includes: a compressor; an indoor heat exchanger; and the heat exchanger assembly, wherein the compressor, the indoor heat exchanger, and the heat exchanger assembly constitute a refrigeration circuit, and the refrigerant inlet and outlet are connected to one end of the indoor heat exchanger.

[0024] According to the embodiment of this utility model, the air conditioner includes the aforementioned heat exchanger assembly. The flute-shaped tube includes a main pipe section and a one-way throttling valve. The main pipe section has refrigerant inlet and outlet and multiple connecting holes. A one-way throttling valve is provided between at least some adjacent connecting holes. The one-way throttling valve is used to throttle the medium flowing from the refrigerant inlet and outlet to the partially connected holes and to allow unthrottled flow of the medium flowing from the at least some connecting holes to the refrigerant inlet and outlet. This reduces the flow rate of the medium flowing towards the one-way throttling valve away from the refrigerant inlet and outlet when the medium flows from the refrigerant inlet and outlet to the at least some connecting holes, relatively increasing the flow rate of the medium flowing towards the connecting holes closer to the refrigerant inlet and outlet. This achieves a better flow diversion effect. When the flute-shaped tube is applied to the heat exchanger assembly, it can improve the heat exchange efficiency of the heat exchanger body, ensure the heat exchange performance of the heat exchanger assembly, and improve energy efficiency.

[0025] 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

[0026] 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:

[0027] Figure 1 This is a structural schematic diagram of an air conditioner according to an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of the structure of a heat exchanger assembly according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the flute-shaped tube according to an embodiment of the present utility model;

[0030] Figure 4 This is a partial cross-sectional schematic diagram of a flute-shaped tube according to an embodiment of the present utility model.

[0031] Figure label:

[0032] 1000. Air conditioner;

[0033] 100. Heat exchanger assembly;

[0034] 10. Flute-shaped tube;

[0035] 1. Main pipe section; 11. Refrigerant inlet / outlet; 12. Connecting hole; 121. First connecting hole; 122. Second connecting hole; 13. Sub-pipe section;

[0036] 2. One-way throttle valve; 21. Housing; 211. First cavity; 212. First valve port; 213. Second valve port; 214. Third cavity; 22. Valve core; 221. Body section; 222. Blocking section; 223. Second cavity; 224. First through hole; 225. Second through hole; 226. Flow reduction hole;

[0037] 3. Branch pipe section;

[0038] 20. Heat exchanger body;

[0039] 30. Manifold; 301. First section; 302. Second section;

[0040] 200. Compressor;

[0041] 300. Indoor heat exchanger;

[0042] 400, Four-way valve;

[0043] 500. Electrically controlled liquid-cooled heat exchange module. Detailed Implementation

[0044] The embodiments of this utility model are described in detail below. Examples of the 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.

[0045] 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", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The flute-shaped tube 10 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0049] like Figure 3 As shown, the flute-shaped tube 10 according to an embodiment of the present invention includes a main pipe section 1 and a one-way throttle valve 2.

[0050] Specifically, see the attached document. Figure 3 As shown, a refrigerant inlet / outlet 11 is formed on the main pipe section 1, and a plurality of connecting holes 12 are provided on the main pipe section 1. The plurality of connecting holes 12 are spaced apart along the length direction of the main pipe section 1. The medium flows from the refrigerant inlet / outlet 11 to the plurality of connecting holes 12, or the medium flows from the plurality of connecting holes 12 to the refrigerant inlet / outlet 11. A one-way throttle valve 2 is provided between at least some of two adjacent connecting holes 12. The one-way throttle valve 2 is used to throttle the medium flowing from the refrigerant inlet / outlet 11 to at least some of the connecting holes 12 and to allow the medium flowing from at least some of the connecting holes 12 to the refrigerant inlet / outlet 11 without throttling. For example, the medium is refrigerant. In a specific example, such as Figure 3 As shown, the refrigerant inlet / outlet 11 is located at one end of the main pipe section 1 along its length, and multiple connecting holes 12 are located on the periphery of the main pipe section 1.

[0051] In the prior art, for gas-liquid two-phase refrigerants, due to the influence of refrigerant dynamic pressure, when the refrigerant flows from the refrigerant inlet and outlet to multiple connecting holes in the flute tube, the refrigerant flow rate from the connecting holes far from the refrigerant inlet and outlet is greater than the refrigerant flow rate from the connecting holes close to the refrigerant inlet and outlet, resulting in uneven refrigerant distribution.

[0052] Understandably, when the medium flows from the multiple connecting holes 12 to the refrigerant inlet / outlet 11, the one-way throttle valve 2 is fully open and does not throttle the medium. The medium flows from the multiple connecting holes 12 into the main pipe section 1 and flows along the length of the main pipe section 1 to the refrigerant inlet / outlet 11. The medium does not experience significant flow fluctuations before and after passing through the one-way throttle valve 2. When the medium flows from the refrigerant inlet / outlet 11 to the multiple connecting holes 12, the one-way throttle valve 2 is in a throttling state. After entering the main pipe section 1 from the refrigerant inlet / outlet 11, the medium flows along the length of the main pipe section 1, with some of the medium flowing through the connecting hole located on the side of the one-way throttle valve 2 closest to the refrigerant inlet / outlet 11. 12 flows directly out of the main pipe section 1, and part of the medium continues to flow along the length of the main pipe section 1 in the direction away from the refrigerant inlet and outlet 11 until it encounters the one-way throttle valve 2, which throttles it. This obstructs the flow of medium to the one-way throttle valve 2 on the side away from the refrigerant inlet and outlet 11, reducing the flow of medium to the one-way throttle valve 2 on the side away from the refrigerant inlet and outlet 11. This relatively increases the flow of medium to the connecting hole 12 on the side of the one-way throttle valve 2 near the refrigerant inlet and outlet 11, thus achieving a better diversion effect. When the flute tube 10 is applied to the heat exchanger assembly 100, it can improve the heat exchange efficiency of the heat exchanger body 20, ensure the heat exchange performance of the heat exchanger assembly 100, and improve energy efficiency.

[0053] It should be noted that the main pipe section 1 can be made of steel, iron, copper, aluminum, etc. The user can choose a relatively inexpensive material according to their needs, thereby reducing the production cost of the flute tube 10 and meeting the user's low-cost requirements.

[0054] According to the embodiment of the present invention, the flute-shaped tube 10 includes a main pipe section 1 and a one-way throttle valve 2. The main pipe section 1 has a refrigerant inlet / outlet 11 and a plurality of connecting holes 12. A one-way throttle valve 2 is provided between at least two partially adjacent connecting holes 12. The one-way throttle valve 2 is used to throttle the medium flowing from the refrigerant inlet / outlet 11 to at least some of the connecting holes 12 and to conduct the medium flowing from at least some of the connecting holes 12 to the refrigerant inlet / outlet 11 without throttling. When the medium flows from the refrigerant inlet / outlet 11 to at least some of the connecting holes 12, it can reduce the flow rate of the medium flowing to the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11 and relatively increase the flow rate of the medium flowing to the connecting holes 12 on the side of the one-way throttle valve 2 closer to the refrigerant inlet / outlet 11, thereby achieving a better flow diversion effect. When the flute-shaped tube 10 is applied to the heat exchanger assembly 100, it can improve the heat exchange efficiency of the heat exchanger body 20, ensure the heat exchange performance of the heat exchanger assembly 100, and improve energy efficiency.

[0055] In some embodiments of this utility model, reference is made to the appendix. Figure 3As shown, the plurality of connecting holes 12 include at least one first connecting hole 121 disposed between the refrigerant inlet / outlet 11 and the one-way throttle valve 2. The medium flowing from the refrigerant inlet / outlet 11 to the first connecting hole 121 does not pass through the one-way throttle valve 2, and the medium flowing from the first connecting hole 121 to the refrigerant inlet / outlet 11 does not pass through the one-way throttle valve 2. The setting of the one-way throttle valve 2 does not directly affect the medium flowing through the first connecting hole 121, and can relatively reduce the resistance encountered by the medium flowing through the first connecting hole 121, ensuring that the medium in the refrigerant inlet / outlet 11 flows normally to the first connecting hole 121, and ensuring that the medium in the first connecting hole 121 flows normally to the refrigerant inlet / outlet 11.

[0056] In a further embodiment of this utility model, reference is made to the appendix. Figure 3 As shown, the distance a between the upper edge of the first connecting hole 121 and the end of the one-way throttle valve 2 near the first connecting hole 121 is less than or equal to 100mm. It can be understood that if a > 100mm, during the process of the medium flowing from the refrigerant inlet / outlet 11 to the multiple connecting holes 12, when passing through the first connecting hole 121, the fluid in the branch where the first connecting hole 121 is located may experience backflow or mix with the medium in the main pipe section 1 due to the suction effect of the medium in the main pipe section 1, resulting in pressure fluctuations, unstable flow, and even affecting the normal function of the first connecting hole 121. Furthermore, since the throttling effect of the one-way throttle valve 2 depends on its local resistance to the medium, if the distance between the one-way throttle valve 2 and the first connecting hole 121 is too large, the medium pressure, flow rate, and other parameters near the first connecting hole 121 may change due to the increase of a, causing the actual flow rate regulated by the one-way throttle valve 2 to deviate from the expected design, affecting the control accuracy.

[0057] In some embodiments of this utility model, reference is made to the appendix. Figure 3 As shown, the plurality of connecting holes 12 include at least one second connecting hole 122 disposed at the end of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11. The medium flowing from the refrigerant inlet / outlet to the second connecting hole 122 passes through the one-way throttle valve 2 and is throttled by the one-way throttle valve 2. The medium flowing from the second connecting hole 122 to the refrigerant inlet / outlet 11 passes through the one-way throttle valve 2 and is unthrottled by the one-way throttle valve 2. This ensures the flow rate of the medium when it flows from the second connecting hole 122 to the refrigerant inlet / outlet 11, and also obstructs the flow of the medium to the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11 when the medium flows from the refrigerant inlet / outlet 11 to the second connecting hole 122. This reduces the flow rate of the medium to the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11, and relatively increases the flow rate of the medium to the connecting hole 12 on the side of the one-way throttle valve 2 closer to the refrigerant inlet / outlet 11, thereby achieving a better diversion effect.

[0058] Preferably, a one-way throttle valve 2 is provided between any two adjacent connecting holes 12. Among any two adjacent connecting holes 12, the connecting hole 12 closer to the refrigerant inlet / outlet 11 is the first connecting hole 121, and the connecting hole 12 farther away from the refrigerant inlet / outlet 11 is the second connecting hole 122. When the flow direction of the medium in the flute tube 10 is from the refrigerant inlet / outlet 11 to the connecting hole 12, the one-way throttle valve 2 can block the medium flowing towards the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11, reduce the medium flow rate to the second connecting hole 122, relatively increase the medium flow rate to the first connecting hole 121, improve the problem of uneven flow distribution caused by refrigerant dynamic pressure, and further improve the flow distribution effect of the flute tube 10.

[0059] For example, when there are two connecting holes 12, there is one one-way throttle valve 2 and it is located between the two connecting holes 12; when there are three connecting holes 12, there are two one-way throttle valves 2, and one one-way throttle valve 2 is provided between every two connecting holes 12; when there are four connecting holes 12, there are three one-way throttle valves 2, and one one-way throttle valve 2 is provided between every two connecting holes 12.

[0060] In a further embodiment of this utility model, reference is made to the appendix. Figure 3 As shown, the distance b between the lower edge of the second connecting hole 122 and the end of the one-way throttle valve 2 closest to the second connecting hole 122 is greater than or equal to 20mm. It can be understood that when the medium flows from the refrigerant inlet / outlet 11 to the multiple connecting holes 12, the flow velocity of the medium will suddenly increase after being throttled by the one-way throttle valve 2. If the distance between the second connecting hole 122 and the one-way throttle valve 2 is too close, the high-speed medium after throttling may directly impact the second connecting hole 122, causing a sudden increase in pressure, fluid turbulence, or increased noise at the second connecting hole 122. By maintaining a certain distance, the flow velocity of the throttled fluid can be reduced by pipeline friction and spatial diffusion before entering the second connecting hole 122, stabilizing the pressure and flow state, and avoiding performance degradation of the second connecting hole 122 due to fluid impact. Furthermore, when the medium flows from multiple connecting holes 12 to the refrigerant inlet and outlet 11, the one-way throttle valve 2 does not throttle or conduct. If the one-way throttle valve 2 is too close to the second connecting hole 122, the medium may experience pressure loss or vibration due to local narrowing of the pipeline or sudden structural changes. Maintaining a certain distance can ensure that the fluid has enough space to smoothly transition and avoid excessive local resistance.

[0061] In some embodiments of this utility model, reference is made to the appendix. Figure 4As shown, the one-way throttle valve 2 has a first valve port 212 and a second valve port 213. The first valve port 212 is connected to the refrigerant inlet / outlet 11, and the second valve port 213 is connected to at least a portion of the connecting hole 12. In the flow direction from the first valve port 212 to the second valve port 213, the one-way throttle valve 2 is a throttling element, playing a throttling role. In the flow direction from the second valve port 213 to the first valve port 212, the one-way throttle valve 2 does not throttle or conduct, that is, the one-way throttle valve 2 is fully open and only serves as a connecting pipe. It should be noted that "fully open" here means that the pressure at both ends of the one-way throttle valve 2 is approximately equal, and the one-way throttle valve 2 only serves as a connecting pipe, allowing the medium to flow smoothly from the second valve port 213 to the first valve port 212 without throttling.

[0062] In a further embodiment of this utility model, reference is made to the appendix. Figure 4 As shown, the one-way throttle valve 2 includes a housing 21 and a valve core 22. The housing 21 is fixedly connected to the main pipe section 1. A first valve port 212 and a second valve port 213 are both provided on the housing 21. The first valve port 212 is provided at the end of the housing 21 near the refrigerant inlet / outlet 11, and the second valve port 213 is provided at the end of the housing 21 away from the refrigerant inlet / outlet 11. The housing 21 also has a first cavity 211, which communicates with the second valve port 213. The valve core 22 is movably disposed in the housing 21. The first cavity 211 is located on the side of the valve core 22 away from the first valve port 212. The valve core 22 has a flow-reducing orifice 226, which communicates with the first cavity 211 and the first valve port 212. The diameter of the flow-reducing orifice 226 is smaller than the diameter of the first valve port 212.

[0063] Furthermore, the valve core 22 has a first limit position and a second limit position. In the first limit position, the end of the valve core 22 near the refrigerant inlet / outlet 11 abuts against the inner wall of the housing 21 with the first valve port 212, and the end of the valve core 22 away from the refrigerant inlet / outlet 11 is spaced apart from the second valve port 213. In the second limit position, the end of the valve core 22 near the refrigerant inlet / outlet 11 is spaced apart from the first valve port 212, and the end of the valve core 22 away from the refrigerant inlet / outlet 11 abuts against the inner wall of the first cavity 211.

[0064] Understandably, when the medium flows from the multiple connecting holes 12 to the refrigerant inlet / outlet 11, the medium flows from the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11 towards the refrigerant inlet / outlet 11. The medium first enters the first cavity 211 from the second valve port 213 and pushes the valve core 22 to the first limit position. The medium in the first cavity 211 flows through the flow reduction hole 226 and out of the one-way throttle valve 2 from the first valve port 212. When the medium flows from the refrigerant inlet / outlet 11 to the multiple connecting holes 12, the medium flows from the side of the one-way throttle valve 2 closest to the refrigerant inlet / outlet 11 towards the side away from the refrigerant inlet / outlet 11. The medium first enters the housing 21 from the first valve port 212 and pushes the valve core 22 to the first limit position. 2. When the flow is moved to the second limit position, the flow reduction orifice 226 is opposite to the second valve port 213. The medium can flow out from the second valve port 213 through the flow reduction orifice 226. Since the orifice diameter of the flow reduction orifice 226 is smaller than the orifice diameter of the first valve port 212, the flow rate of the medium flowing out from the flow reduction orifice 226 can be relatively reduced, thereby reducing the flow rate of the medium flowing out from the second valve port 213. This relatively increases the flow rate of the medium flowing out from the connecting hole 12 on the side of the one-way throttle valve 2 near the refrigerant inlet / outlet 11, achieving a better flow diversion effect. When the flute tube 10 is applied to the heat exchanger assembly 100, it can improve the heat exchange efficiency of the heat exchanger body 20, ensure the heat exchange performance of the heat exchanger assembly 100, and improve energy efficiency.

[0065] It is understandable that the valve core 22 can be moved within the first cavity 211 by the medium, so that the valve core 22 and the different inner walls of the housing 21 can be abutted. There is no need to set up an additional driving device to drive the valve core 22 to move, which can relatively reduce the production cost of the one-way throttle valve 2.

[0066] In a further embodiment of this utility model, there are multiple one-way throttle valves 2, and a connecting hole 12 is provided between two adjacent one-way throttle valves 2. In the direction away from the refrigerant inlet / outlet 11, the diameter of the flow-reducing holes 226 of the multiple one-way throttle valves 2 gradually decreases. It can be understood that when the medium flows from the refrigerant inlet / outlet 11 to the connecting hole 12, the first one-way throttle valve 2 through which the medium flows will throttle the medium for the first time, ensuring the flow rate of the connecting hole 12 located on the side of the first one-way throttle valve 2 closest to the refrigerant inlet / outlet 11, and allowing more medium to continue flowing in the direction away from the refrigerant inlet / outlet 11 to meet the flow rate requirement of the remaining connecting holes 12. Each subsequent one-way throttle valve 2... Both will throttle the medium to ensure the flow rate of the connecting hole 12 located on the side of the one-way throttle valve 2 near the refrigerant inlet / outlet 11, while leaving a certain amount of medium to continue flowing in the direction away from the refrigerant inlet / outlet 11. As the medium flows in the direction away from the refrigerant inlet / outlet 11, the number of connecting holes 12 through which the medium flows increases and the number of connecting holes 12 that have not yet flowed through decreases. Confined in the direction from the refrigerant inlet / outlet 11 to the connecting hole 12, the diameter of the flow-reducing holes 226 of the multiple one-way throttle valves 2 gradually decreases, which can match the gradually decreasing medium flow rate, ensuring the effective diversion of the one-way throttle valve 2, improving the problem of uneven diversion caused by the refrigerant dynamic pressure, and further improving the diversion effect of the flute tube 10.

[0067] In a further embodiment of this utility model, reference is made to the appendix. Figure 4 As shown, the valve core 22 also has a second cavity 223, which is located at the end of the flow-reducing orifice 226 facing the first valve port 212. The second cavity 223 connects the flow-reducing orifice 226 and the first valve port 212. When the medium flows from the multiple connecting holes 12 to the refrigerant inlet / outlet 11, the medium flows from the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11 towards the refrigerant inlet / outlet 11. At this time, the valve core 22 is in the first extreme position, and the valve core 22 is separated from the second valve port 213, without blocking the second valve port 212. After the medium enters the first cavity 211 through the second valve port 213, it can flow directly from the second cavity 223 to the first valve port 212, or flow through the flow reduction hole 226 and the second cavity 223 to the first valve port 212. This increases the path from the first cavity 211 to the first valve port 212 and expands the area from the first cavity 211 to the first valve port 212, ensuring the flow rate of the medium and reducing the impact of the one-way throttle valve 2 on the flow rate of the medium.

[0068] In a further embodiment of this utility model, reference is made to the appendix. Figure 4As shown, the housing 21 also has a third cavity 214, which is located on the side of the valve core 22 near the first valve port 212 and communicates with the first valve port 212. The valve core 22 includes a body section 221 and a sealing section 222. The body section 221 is disposed inside the housing 21. The first cavity 211 and the third cavity 214 are respectively located on both sides of the body section 221 along the length of the flute tube 10. The body section 221 has a first through hole 224, which communicates with the third cavity. 214 is connected, and the blocking section 222 is located on the side of the main body section 221 facing the first cavity 211. On the cross-section perpendicular to the length direction of the flute tube 10, the cross-sectional area of ​​the blocking section 222 is smaller than the cross-sectional area of ​​the main body section 221. The blocking section 222 has a second through hole 225 and a flow reduction hole 226. The second through hole 225 is used to connect the first through hole 224 and the first cavity 211. The second through hole 225 and the first through hole 224 together form the second cavity 223.

[0069] Understandably, by limiting the cross-sectional area of ​​the blocking section 222 to be smaller than that of the body section 221 in the cross-section perpendicular to the length of the flute tube 10, when the medium flows from the refrigerant inlet / outlet 11 to the multiple connecting holes 12, the medium first contacts the side surface of the body section 221 facing away from the blocking section 222. The larger cross-sectional area of ​​the body section 221 facilitates the medium to push the valve core 22 to the second limit position. The smaller cross-sectional area of ​​the blocking section 222 can minimize the space occupied by the blocking section 222 in the one-way throttle valve 2 while ensuring the sealing of the second valve port 213. When the medium flows from the multiple connecting holes 12 to the refrigerant inlet / outlet 11, the medium will contact the blocking section 222 and the side surface of the body section 221 facing the blocking section 222, ensuring that the medium pushes the valve core 22 to the first limit position.

[0070] Understandably, when the medium flows from the multiple connecting holes 12 to the refrigerant inlet and outlet 11, the medium flows from the side of the one-way throttle valve 2 away from the refrigerant inlet and outlet 11 towards the refrigerant inlet and outlet 11. The medium first enters the first cavity 211 from the second valve port 213 and pushes the valve core 22 to the first limit position. The medium in the first cavity 211 passes through the second through hole 225 and the first through hole 224 in sequence (or passes through the flow reduction hole 226, the second through hole 225 and the first through hole 224 in sequence), and finally flows out of the first valve port 212. One-way throttle valve 2; when the medium flows from the refrigerant inlet / outlet 11 to the multiple connecting holes 12, the medium flows from the side of the one-way throttle valve 2 closest to the refrigerant inlet / outlet 11 to the side away from the refrigerant inlet / outlet 11. The medium first enters the third chamber 214 from the first valve port 212 and pushes the valve core 22 to the second limit position. The medium in the third chamber 214 can pass through the first through hole 224 and the second through hole 225 in sequence and enter the first chamber 211. Finally, it flows out from the second valve port 213 through the flow reduction hole 226.

[0071] In some embodiments of this utility model, the main pipe section 1 is a single piece, and the one-way throttle valve 2 is fixed inside the main pipe section 1. The installation process is relatively simple, requiring only a one-way throttle valve 2 to be connected to the main pipe section 1 once. There is no need to align and connect multiple pipe sections, which simplifies the assembly process of the flute tube 10, reduces the difficulty of disassembling and assembling the flute tube 10, improves the assembly and maintenance efficiency of the flute tube 10, and also reduces potential leakage points, thereby reducing the risk of leakage of the flute tube 10.

[0072] In other embodiments of this utility model, reference is made to the appendix. Figure 4 As shown, the main pipe section 1 includes multiple sub-pipe sections 13, which are arranged and spaced apart along the length of the flute tube 10. Each sub-pipe section 13 is provided with a connecting hole 12. The multiple sub-pipe sections 13 are separate components. A one-way throttle valve 2 is connected between two adjacent sub-pipe sections 13. When assembling the flute tube 10, the position of each sub-pipe section 13 can be adjusted to ensure accurate docking between the one-way throttle valve 2 and the sub-pipe section 13, thereby reducing the installation accuracy of the flute tube 10 and facilitating its assembly. Furthermore, if some sub-pipe sections 13 in the main pipe section 1 are damaged or need to be replaced, only the corresponding sub-pipe section 13 needs to be replaced, instead of replacing the entire flute tube 10, thus reducing the maintenance cost of the flute tube 10.

[0073] In some embodiments of this utility model, reference is made to the appendix. Figure 3 As shown, the flute-shaped tube 10 also includes multiple branch pipe sections 3, which are located at the connecting holes 12. Each branch pipe section 3 corresponds to a single connecting hole 12. The branch pipe sections 3 can be used to indirectly connect the main pipe section 1 to the heat exchange tube of the heat exchanger body 20, which can relatively reduce the difficulty of connecting the flute-shaped tube 10 to the heat exchanger body 20, reduce the probability of refrigerant leakage, and ensure the normal operation of the heat exchanger assembly 100.

[0074] It should be noted that the welding connection between multiple branch pipe sections 3 and main pipe section 1 can ensure the connection strength between branch pipe sections 3 and main pipe section 1, improve the structural strength of flute-shaped pipe 10, and ensure the reliability and stability of flute-shaped pipe 10. In addition, during the welding process, the weld metal fills the gap between main pipe section 1 and branch pipe section 3, forming a dense connection layer, which can effectively prevent the leakage of the medium.

[0075] In some embodiments of this utility model, the main pipe section 1 is welded to the one-way throttle valve 2, which can ensure the reliability and stability of the connection between the main pipe section 1 and the one-way throttle valve 2, reduce the risk of leakage caused by loose connection, extend the service life of the flute tube 10, ensure the normal operation of the air conditioner 1000 when the flute tube 10 is applied to the air conditioner 1000, and because the welded connection is stable and reliable, the connection cost and maintenance cost between the main pipe section 1 and the one-way throttle valve 2 can be relatively reduced.

[0076] This utility model also proposes a heat exchanger assembly 100 having the flute-shaped tube 10 of the above embodiments.

[0077] like Figure 2 As shown, the heat exchanger assembly 100 according to an embodiment of the present invention includes a heat exchanger body 20, a manifold 30, and the aforementioned flute-shaped tube 10.

[0078] Specifically, the heat exchanger body 20 has multiple heat exchange tubes, which serve as refrigerant flow channels. Each heat exchange tube includes multiple U-shaped tubes and multiple connecting tubes. Adjacent U-shaped tubes are connected by connecting tubes, allowing the refrigerant to flow from one U-shaped tube to the next, and ultimately exiting from one or more U-shaped tubes. The connecting tubes can be U-shaped or arc-shaped.

[0079] Further, see Appendix Figure 2 As shown, the manifold 30 is located on one side of the heat exchanger body 20 and is connected to the heat exchange tube. The flute-shaped tube 10 is located on the side of the heat exchanger body 20 away from the manifold 30, or the flute-shaped tube 10 and the manifold 30 are located on the same side of the heat exchanger body 20. The flute-shaped tube 10 is connected to the heat exchange tube. The medium is suitable to flow from one of the flute-shaped tube 10 and the manifold 30 to the other. When the medium flows from the manifold 30 to the flute-shaped tube 10, the one-way throttle valve 2 is in a fully open state. When the medium flows from the flute-shaped tube 10 to the manifold 30, the one-way throttle valve 2 is in a throttling state. This reduces the flow rate of the branch pipe section 3 that is far away from the refrigerant inlet and outlet 11 and increases the flow rate of the branch pipe section 3 that is close to the refrigerant inlet and outlet 11. This makes the refrigerant distribution in the multiple branch pipe sections 3 in the flute-shaped tube 10 uniform and improves the heat exchange efficiency of the heat exchanger body 20.

[0080] It should be noted that the reference appendix Figure 2 As shown, the manifold 30 includes a first section 301 and a plurality of second sections 302. The plurality of second sections 302 are all disposed on the peripheral wall of the first section 301, and the plurality of second sections 302 are spaced apart along the length direction of the first section 301.

[0081] When the medium flows from the manifold 30 to the flute tube 10, the medium first enters the first section 301 and flows along the length of the first section 301. Then, the medium in the first section 301 is divided into multiple streams and enters multiple second sections 302 respectively. The medium flows along the second sections 302 to the heat exchange tubes of the heat exchanger body 20, and from the heat exchange tubes to multiple branch pipe sections 3 of the flute tube 10. The medium in the multiple branch pipe sections 3 converges into the main pipe section 1 and flows along the length of the main pipe section 1, finally flowing out from the refrigerant inlet and outlet 11. When the medium flows from the flute-shaped tube 10 to the manifold 30, the medium first enters the main pipe section 1 through the refrigerant inlet / outlet 11 and flows along the length of the main pipe section 1. Then, the medium in the main pipe section 1 is divided into multiple streams and enters multiple branch pipe sections 3 respectively. The medium flows along the branch pipe sections 3 to the heat exchange tubes of the heat exchanger body 20, and from the heat exchange tubes to multiple second sections 302 of the manifold 30. The medium in the multiple second sections 302 is collected into the first section 301 and flows along the length of the first section 301, and finally flows out of the manifold 30.

[0082] When the heat exchanger assembly 100 is applied to the air conditioner 1000, the refrigerant inlet / outlet 11 of the flute tube 10 is connected to one end of the indoor heat exchanger 300, and the manifold 30 is connected to the end of the compressor 200 away from the indoor heat exchanger 300. When the air conditioner 1000 is in heating mode, the refrigerant flows from the indoor heat exchanger 300 to the heat exchanger assembly 100, and then to the compressor 200. The one-way throttle valve 2 of the flute tube 10 can control the gas-liquid two-phase flow from the indoor heat exchanger 300. The refrigerant is diverted to ensure even distribution within the multiple branch pipe sections 3 of the flute-shaped pipe 10, thereby improving the heat exchange efficiency of the heat exchanger body 20 and mitigating the impact of dynamic pressure on heating performance. When the air conditioner 1000 is in cooling mode, the refrigerant flows from the compressor 200 to the heat exchanger assembly 100, and then to the indoor heat exchanger 300. The refrigerant flowing out of the compressor 200 is a high-temperature, high-pressure gaseous refrigerant, which does not require additional diversion and thus avoids affecting the normal cooling performance of the air conditioner 1000.

[0083] According to the embodiment of the present invention, the heat exchanger assembly 100 is provided with the aforementioned flute-shaped tube 10. The flute-shaped tube 10 includes a main pipe section 1 and a one-way throttle valve 2. The main pipe section 1 has a refrigerant inlet / outlet 11 and a plurality of connecting holes 12. A one-way throttle valve 2 is provided between at least two partially adjacent connecting holes 12. The one-way throttle valve 2 is used to throttle the medium flowing from the refrigerant inlet / outlet 11 to the partially connected holes 12 and to allow the medium flowing from the at least partially connected holes 12 to the refrigerant inlet / outlet 11 without throttling. When the medium flows from the refrigerant inlet / outlet 11 to the at least partially connected holes 12, the flow rate of the medium flowing to the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11 is reduced, while the flow rate of the medium flowing to the connecting holes 12 closer to the refrigerant inlet / outlet 11 is relatively increased, thereby achieving a better flow diversion effect. When the flute-shaped tube 10 is applied to the heat exchanger assembly 100, it can improve the heat exchange efficiency of the heat exchanger body 20, ensure the heat exchange performance of the heat exchanger assembly 100, and improve energy efficiency.

[0084] This utility model also proposes an air conditioner 1000 having the heat exchanger assembly 100 of the above embodiments.

[0085] like Figure 1 As shown, the air conditioner 1000 according to an embodiment of the present utility model includes a compressor 200, an indoor heat exchanger 300 and the aforementioned heat exchanger assembly 100.

[0086] Specifically, see the attached document. Figure 1 As shown, the compressor 200, indoor heat exchanger 300, and heat exchanger assembly 100 constitute a refrigeration circuit. The refrigerant inlet / outlet 11 is connected to one end of the indoor heat exchanger 300, which can be used to split the gas-liquid two-phase refrigerant flowing from the indoor heat exchanger 300 in the heating mode of the air conditioner 1000. This can effectively eliminate the inertial influence of refrigerant flow and achieve more even distribution among multiple branch pipe sections 3, thereby improving the heat exchange performance of the air conditioner 1000. The manifold 30 is connected to the end of the compressor 200 away from the indoor heat exchanger 300, which can be used to split the single-phase refrigerant flowing from the compressor 200 in the cooling mode of the air conditioner 1000. It is easy to process, inexpensive, and can reduce the production cost of the air conditioner 1000.

[0087] It is understandable that when the air conditioner is in cooling mode (refer to the attached document), ... Figure 1As shown, the refrigerant is discharged from the compressor 200 and enters the first section 301 of the manifold 30 through the four-way valve 400. Then, it enters the heat exchanger body 20 through multiple second sections 302 of the manifold 30. After condensation and heat dissipation in the heat exchanger body 20, it flows out. At this time, the one-way throttle valve 2 always remains fully open. The refrigerant is collected from multiple branch pipe sections 3 of the flute-shaped pipe 10 into the main pipe section 1 and flows to the indoor heat exchanger 300 through the refrigerant inlet and outlet 11 to evaporate and cool the room. The evaporated refrigerant returns to the compressor 200, and the cycle repeats.

[0088] When the air conditioner 1000 is in heating mode, the refrigerant is discharged from the compressor 200 and enters the indoor heat exchanger 300 through the four-way valve 400 for condensation and heat dissipation, thus heating the room. At this time, the one-way throttle valve 2 is in a throttling state, and the refrigerant enters the main pipe section 1 from the refrigerant inlet and outlet 11 of the flute-shaped pipe 10. Some of the refrigerant flows directly to the branch pipe section 3, and some of the refrigerant flows to the branch pipe section 3 after being throttled by the one-way throttle valve 2. The refrigerant in multiple branch pipe sections 3 flows into the heat exchanger body 20, where it evaporates. Then, it flows back to the compressor 200 through the second section 302 and the first section 301 of the manifold 30 in sequence, and this cycle repeats.

[0089] Additionally, please refer to the appendix. Figure 1 As shown, the air conditioner 1000 also includes an electronically controlled liquid-cooled heat exchange module 500, which is used to exchange heat with the electronic control board of the heat exchanger body 20 to cool the electronic control board of the heat exchanger body 20.

[0090] It is understandable that, in the same model of air conditioner 1000, comparing the performance parameters of the flute-shaped tube 10 of this application with those of the prior art, the heating performance of the air conditioner 1000 using the flute-shaped tube 10 of this application can be improved to a certain extent, without affecting the cooling performance of the air conditioner 1000, as shown in Table 1:

[0091] Table 1 Comparison of Performance Parameters of a Certain Air Conditioner Model

[0092] Cooling capacity (W) 13514 13548 Cooling power (W) 5511 5520 EER (Coefficient of Performance) 2.45 2.45 Heating capacity (W) 13156 13742 Heating power (W) 4184 4318 COP (Coefficient of Performance) 3.14 3.18

[0093] According to an embodiment of the present invention, the air conditioner 1000 includes a heat exchanger assembly 100 as described above, and a flute-shaped tube 10 comprising a main pipe section 1 and a one-way throttling valve 2. The main pipe section 1 has a refrigerant inlet / outlet 11 and a plurality of connecting holes 12. A one-way throttling valve 2 is provided between at least some of two adjacent connecting holes 12. The one-way throttling valve 2 is used to throttle the medium flowing from the refrigerant inlet / outlet 11 to at least some of the connecting holes 12 and to throttle the medium flowing from at least some of the connecting holes 12 to the refrigerant inlet / outlet 11. The non-throttling flow of the medium can reduce the flow rate of the medium to the side of the one-way throttle valve 2 away from the refrigerant inlet / outlet 11 when the medium flows from the refrigerant inlet / outlet 11 to at least part of the connecting hole 12, and relatively increase the flow rate of the medium to the connecting hole 12 on the side of the one-way throttle valve 2 closer to the refrigerant inlet / outlet 11, thereby achieving a better flow diversion effect. When the flute tube 10 is applied to the heat exchanger assembly 100, it can improve the heat exchange efficiency of the heat exchanger body 20, ensure the heat exchange performance of the heat exchanger assembly 100, and improve energy efficiency.

[0094] Other configurations and operations of the flute-shaped tube 10, heat exchanger assembly 100, and air conditioner 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0096] 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 flute-shaped tube, characterized in that, include: The main pipe section has a refrigerant inlet and outlet, and a plurality of connecting holes are provided on the main pipe section. The plurality of connecting holes are spaced apart along the length direction of the main pipe section. The medium flows from the refrigerant inlet and outlet to the plurality of connecting holes, or the medium flows from the plurality of connecting holes to the refrigerant inlet and outlet. A one-way throttle valve is provided between at least two partially adjacent connecting holes. The one-way throttle valve is used to throttle the medium flowing from the refrigerant inlet / outlet to at least a portion of the connecting holes and to allow the medium flowing from at least a portion of the connecting holes to the refrigerant inlet / outlet without throttling.

2. The flute-shaped tube according to claim 1, characterized in that, The plurality of connecting holes includes at least one first connecting hole disposed between the refrigerant inlet / outlet and the one-way throttle valve, wherein the medium flowing from the refrigerant inlet / outlet to the first connecting hole does not pass through the one-way throttle valve, and the medium flowing from the first connecting hole to the refrigerant inlet / outlet does not pass through the one-way throttle valve.

3. The flute-shaped tube according to claim 2, characterized in that, The distance between the upper edge of the first connecting hole and the end of the one-way throttle valve closest to the first connecting hole is less than or equal to 100 mm.

4. The flute-shaped tube according to claim 1, characterized in that, The plurality of connecting holes include at least one second connecting hole disposed at the end of the one-way throttle valve away from the refrigerant inlet and outlet. The medium flowing from the refrigerant inlet and outlet to the second connecting hole passes through the one-way throttle valve and is throttled by the one-way throttle valve. The medium flowing from the second connecting hole to the refrigerant inlet and outlet passes through the one-way throttle valve and is not throttled by the one-way throttle valve.

5. The flute-shaped tube according to claim 4, characterized in that, The distance between the lower edge of the second connecting hole and the end of the one-way throttle valve closest to the second connecting hole is greater than or equal to 20 mm.

6. The flute-shaped tube according to claim 1, characterized in that, The one-way throttle valve has a first valve port and a second valve port. The first valve port is connected to the refrigerant inlet and outlet, and the second valve port is connected to at least a portion of the connecting hole. In the flow direction from the first valve port to the second valve port, the one-way throttle valve is a throttling element. In the flow direction from the second valve port to the first valve port, the one-way throttle valve does not throttle the flow.

7. The flute-shaped tube according to claim 6, characterized in that, The one-way throttle valve includes: The housing is fixedly connected to the main pipe section. The first valve port and the second valve port are both provided on the housing. The first valve port is provided at the end of the housing near the refrigerant inlet and outlet, and the second valve port is provided at the end of the housing away from the refrigerant inlet and outlet. The housing also has a first cavity, which is in communication with the second valve port. A valve core is movably disposed within the housing. The first cavity is located on the side of the valve core opposite to the first valve port. The valve core has a flow-reducing orifice that connects the first cavity and the first valve port. The diameter of the flow-reducing orifice is smaller than the diameter of the first valve port. The valve core has a first limit position and a second limit position. In the first limit position, the end of the valve core near the refrigerant inlet and outlet abuts against the inner wall of the housing where the first valve port is provided, and the end of the valve core away from the refrigerant inlet and outlet is spaced apart from the second valve port. In the second limit position, the end of the valve core near the refrigerant inlet and outlet is spaced apart from the first valve port, and the end of the valve core away from the refrigerant inlet and outlet abuts against the inner wall of the first cavity.

8. The flute-shaped tube according to claim 7, characterized in that, The number of one-way throttle valves is multiple, and there is a connecting hole between two adjacent one-way throttle valves. In the direction away from the refrigerant inlet and outlet, the diameter of the flow reduction hole of the multiple one-way throttle valves gradually decreases.

9. The flute-shaped tube according to claim 7, characterized in that, The valve core also has a second cavity located at the end of the flow reduction orifice facing the first valve port, for connecting the flow reduction orifice and the first valve port.

10. The flute-shaped tube according to claim 9, characterized in that, The housing also has a third cavity, which is located on the side of the valve core near the first valve port and communicates with the first valve port. The valve core includes: The body segment is disposed within the housing. The first cavity and the third cavity are respectively located on both sides of the body segment along the length direction of the flute-shaped tube. The body segment has a first through hole, which communicates with the third cavity. The sealing section is located on the side of the body section facing the first cavity. On the cross-section perpendicular to the length direction of the flute tube, the cross-sectional area of ​​the sealing section is smaller than the cross-sectional area of ​​the body section. The sealing section has a second through hole and the flow reduction hole. The second through hole is used to connect the first through hole and the first cavity. The second through hole and the first through hole together form the second cavity.

11. The flute-shaped tube according to claim 1, characterized in that, The main pipe section is a single piece, and the one-way throttle valve is fixed inside the main pipe section; Alternatively, the main pipe section may include multiple sub-pipe sections, which are arranged and spaced apart along the length of the flute-shaped pipe. Each sub-pipe section is provided with the connecting hole. The multiple sub-pipe sections are separate components, and the one-way throttle valve is connected between two adjacent sub-pipe sections.

12. The flute-shaped tube according to claim 1, characterized in that, Also includes: Multiple branch pipe sections are provided at the connecting holes, and each of the multiple branch pipe sections corresponds to one of the multiple connecting holes.

13. The flute-shaped tube according to claim 1, characterized in that, The main pipe section is welded to the one-way throttle valve.

14. A heat exchanger assembly, characterized in that, include: A heat exchanger body having multiple heat exchange tubes; A manifold, which is located on one side of the heat exchanger body and communicates with the heat exchange tube; According to any one of claims 1-13, the flute-shaped tube is disposed on the side of the heat exchanger body away from the manifold, or the flute-shaped tube and the manifold are disposed on the same side of the heat exchanger body, the flute-shaped tube is in communication with the heat exchanger tube, and the medium is adapted to flow from one of the flute-shaped tube and the manifold to the other.

15. An air conditioner, characterized in that, include: compressor; Indoor heat exchanger; According to claim 14, the compressor, the indoor heat exchanger, and the heat exchanger assembly constitute a refrigeration circuit, and the refrigerant inlet and outlet are connected to one end of the indoor heat exchanger.

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