Flow divider, heat exchanger and air conditioner

Abstract

The flow divider comprises a flow divider body, an inlet pipe and a plurality of outlet pipes, the flow divider body comprises a first cover plate, a central pipe and a second cover plate, the second cover plate and the first cover plate are connected to the two ends of the central pipe correspondingly, and a flow dividing cavity is defined by the central pipe, the first cover plate and the second cover plate; the inlet pipe is connected to the first cover plate and communicates with the flow dividing cavity, and the outlet pipe is connected to the second cover plate and communicates with the flow dividing cavity. The first cover plate is provided with a first wall opposite to the outlet pipes, and the shortest distances between the outlet pipes and the first wall are the same; and / or the second cover plate is provided with a second wall opposite to the inlet pipe, and the shortest distances between the outlet pipes and the second wall are the same. Due to the fact that the distances between the multiple outlet pipes and the first wall and / or the second wall of the flow divider are the same, the multiple outlet pipes can make contact with the to-be-divided matter in the flow dividing cavity at the same time, and the to-be-divided matter can be evenly distributed into the outlet pipes.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchange equipment, and in particular to a diverter, a heat exchanger and an air conditioner. Background Art

[0002] A heat exchanger consists of a manifold assembly, a header assembly, flat heat exchange tubes, and fins. One end of the flat heat exchange tubes is connected to the manifold assembly, and the other end is connected to the header assembly. Refrigerant flows from the manifold assembly through the flat heat exchange tubes before exiting the header assembly. Fins are placed between adjacent flat heat exchange tubes to increase the effective contact area with the air, thereby improving convective heat transfer. Existing heat exchangers often suffer from refrigerant distribution uniformity. Uneven refrigerant distribution can lead to reduced heat exchanger performance and accelerated frosting. Utility Model Content

[0003] Based on this, it is necessary to provide a flow divider, a heat exchanger and an air conditioner that can make the refrigerant liquid separation more uniform.

[0004] A diverter includes a diverter body, an inlet pipe and multiple outlet pipes, the diverter body includes a diverter cavity, the inlet pipe is connected to one end of the diverter body and communicates with the diverter cavity, and the outlet pipe is connected to the other end of the diverter body and communicates with the diverter cavity.

[0005] In one embodiment, the diverter body includes a first cover plate, a central tube, and a second cover plate. The second cover plate and the first cover plate are respectively connected to the two ends of the central tube. The central tube, the first cover plate and the second cover plate surround the diversion chamber. The inlet pipe is connected to the first cover plate and communicates with the diversion chamber. The outlet pipe is connected to the second cover plate and communicates with the diversion chamber. The first cover plate includes a first plate body and a first side portion. The first side portion is surrounded by the edge of the first plate body. The second cover plate includes a second plate body and a second side portion. The second side portion is surrounded by the edge of the second plate body. The second side portion and the first side are respectively connected to the two ends of the central tube.

[0006] In one embodiment, the first cover plate is provided with an inlet hole, one end of the inlet pipe is connected to the diversion cavity through the inlet hole, and the second cover plate is provided with an outlet hole, one end of the outlet pipe is connected to the diversion cavity through the outlet hole, and the outlet holes are arranged at intervals along the outer periphery of the projection of the inlet hole on the second cover plate.

[0007] In one embodiment, the outlet holes are evenly arranged along the periphery of the projection of the inlet hole on the second cover plate;

[0008] Alternatively, the distances between the central axes of the plurality of outlet holes and the central axis of the inlet hole are all equal.

[0009] In one embodiment, the centers of the plurality of outlet holes are located on the same circle, which is defined as a second circle, and the centers of the plurality of outlet holes are evenly arranged along the circumferential direction of the second circle.

[0010] In one embodiment, one end of the outlet pipe extends into the shunt cavity, and one end of the inlet pipe extends into the shunt cavity.

[0011] In one embodiment, the first cover plate is provided with a first wall opposite the outlet pipe, the distance between the plurality of outlet pipes and the first wall is the same, the second cover plate is provided with a second wall opposite the inlet pipe, and the first wall is parallel to the second wall.

[0012] The distance between the first wall and the second wall is H1, the distance from the end of the inlet pipe extending into the shunt cavity to the first wall is H2, the distance from the end of the outlet pipe extending into the shunt cavity to the second wall is H3, and H2+H3>H1.

[0013] In one embodiment, the distance between the inlet pipe and the outlet pipe is d1, and 0.5mm≤d1≤5mm.

[0014] In one embodiment, 1mm≤H2≤5mm;

[0015] And / or, 1mm≤H3≤5mm.

[0016] In one embodiment, the outer diameter of the outlet pipe is 5mm to 8mm;

[0017] And / or, the inner diameter of the outlet pipe is 4mm to 7mm;

[0018] And / or, the outer diameter of the inlet pipe is 9mm to 13mm;

[0019] And / or, the inner diameter of the inlet pipe is 8mm to 12mm;

[0020] And / or, the thickness of the first cover plate is 1.5mm to 3mm;

[0021] And / or, the thickness of the second cover plate is 1.5mm to 3mm;

[0022] And / or, the length of the central pipe is 20mm to 50mm;

[0023] And / or, the wall thickness of the central pipe is 1.5mm to 2.5mm;

[0024] And / or, the shortest distance between the outer wall of the outlet pipe and the inner wall of the central pipe is 0.5mm to 5mm.

[0025] The application further provides a heat exchanger comprising a flow distribution assembly, a collecting outlet pipe, a flat tube and the flow distributor according to any one of the above, the flow distribution assembly connecting the plurality of outlet pipes of the flow distributor and one end of the flat tube, and the other end of the flat tube being connected to the collecting outlet pipe.

[0026] The application further provides an air conditioner comprising a compressor, an evaporator, a throttling device and a condenser, the compressor, the evaporator, the throttling device and the condenser being connected in sequence and constituting a circulation loop, at least one of the evaporator and the condenser being the heat exchanger according to the above.

[0027] Compared with the prior art, the flow distributor provided by the application comprises a flow distributor main body, an inlet pipe and a plurality of outlet pipes, the flow distributor main body is provided with a flow distribution cavity, the inlet pipe and the plurality of outlet pipes are in common communication with the flow distribution cavity, the structure is simple and easy to install, and uniform distribution of the flow distributor is achieved by the plurality of outlet pipes.

[0028] When the flow distributor is applied in the heat exchanger, the distribution of the refrigerant in the heat exchanger is more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0030] Figure 1 It is a structural schematic view of the flow distributor in an embodiment of the application;

[0031] Figure 2 It is an exploded view of the flow distributor in an embodiment of the application;

[0032] Figure 3 It is a top view of the first cover plate in an embodiment of the application;

[0033] Figure 4 It is a sectional view of the flow distributor in an embodiment of the application;

[0034] Figure 5 It is a structural schematic view of the heat exchanger in an embodiment of the application;

[0035] Figure 6 It is a schematic view of the air conditioner in an embodiment of the application.

[0036] LIST OF REFERENCES

[0037] 1. Air conditioner; 10. Heat exchanger; 100. Flat tube; 200. Diverter assembly; 300. Collecting outlet pipe; 400. Diverter; 410. Diverter body; 411. First cover plate; 4111. First wall; 4112. First plate; 4113. First side; 4114. Inlet hole; 412. Central tube; 413. Second cover plate; 4131. Second wall; 4132. Second plate; 4133. Second side; 4134. Outlet hole; 414. Diverter chamber; 420. Inlet pipe; 430. Outlet pipe; 20. Compressor; 30. Evaporator; 40. Throttle element; 50. Condenser; 60. Connecting pipe. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0039] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] Unless otherwise defined, all technical and scientific terms used in the application's specification have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains. The terminology used in the application's specification is for describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0043] Please refer to Figures 1 to 4 The application provides a flow divider, comprising a flow divider body 410, an inlet pipe 420 and a plurality of outlet pipes 430, the flow divider body 410 comprises a flow dividing cavity 414, the inlet pipe 420 is connected to one end of the flow divider body 410 and communicates with the flow dividing cavity 414, and the outlet pipe 430 is connected to the other end of the flow divider body 410 and communicates with the flow dividing cavity 414. That is, the inlet pipe 420 and the plurality of outlet pipes 430 are respectively located on both sides of the flow divider body 410. In this way, the flow divider has a simple structure and is easy to install. And the flow divider can realize the flow division of the medium to be divided in the flow divider.

[0044] It should be noted that the flow divider 400 in the application is used for flow dividing the substance to be divided, which can be a liquid medium, or a gas medium, or a gas-liquid two-phase medium. In the application, the flow divider is applied to the heat exchanger of an air conditioner, and the medium to be divided by the flow divider is refrigerant. The working principle of the flow divider is described below with the refrigerant as an example. The working principle of the flow divider is that the refrigerant enters the flow dividing cavity 414 from the inlet pipe 420 and is discharged from the plurality of outlet pipes 430, thereby realizing the flow division of the refrigerant.

[0045] Illustratively, the flow divider body 410 can be an integrally formed structure, or can be assembled by a plurality of components, and the application does not limit the structure of the flow divider body 410.

[0046] Further, the flow divider body 410 comprises a central pipe 412, a first cover plate 411 and a second cover plate 413, the second cover plate 413 and the first cover plate 411 are respectively connected to both ends of the central pipe 412, the central pipe 412, the first cover plate 411 and the second cover plate 413 surround the flow dividing cavity 414, the inlet pipe 420 is connected to the first cover plate 411 and communicates with the flow dividing cavity 414, and the outlet pipe 430 is connected to the second cover plate 413 and communicates with the flow dividing cavity 414. In this way, the flow divider has a simple structure and is easy to install.

[0047] It can be understood that, referring to Figure 2The central tube 412, the first cover plate 411 and the second cover plate 413 are independent structures. The central tube 412 is a hollow cylindrical structure. The cross section of the central tube 412 can be circular, or elliptical, triangular, square or other shapes, which are not limited in the present application. The first cover plate 411 can be a flat plate, or a wavy plate body, a plate body with protrusions or recesses. The first cover plate 411 is connected to one end of the central tube 412. The first cover plate 411 and the central tube 412 can be connected by welding, bonding, interference fit, threaded connection or other connection methods, which are not limited in the present application. The second cover plate 413 is connected to the other end of the central tube 412. Similarly, the second cover plate 413 and the central tube 412 can be connected by welding, bonding, interference fit, threaded connection or other connection methods, which are not limited in the present application. The first cover plate 411 can have the same shape as the second cover plate 413, or different shapes. The cross section of the outlet pipe 430 or the inlet pipe 420 is not limited in the present application. The cross section of the outlet pipe 430 or the inlet pipe 420 can be circular, or other shapes.

[0048] It can be understood that whether the one end of the inlet pipe 420 extends into the shunt chamber 414 or not, the shunt device 400 can uniformly distribute the to-be-shunted material to each outlet pipe 430. The number of outlet pipes 430 is greater than the number of inlet pipes, thereby achieving shunting. For example, the number of inlet pipes 420 is 1, and the number of outlet pipes 430 is 4. In this way, the to-be-shunted material in the shunt chamber 414 is shunted through the outlet pipes 430. In other embodiments, the number of outlet pipes 430 and the number of inlet pipes 420 can be selected according to the required flow size and the size of the shunt device body 410, as long as the number of outlet pipes 430 is greater than the number of inlet pipes.

[0049] In one application example, the outlet pipe 430 and the inlet pipe 420 of the shunt device 400 described above extend from the upper and lower sides of the shunt device body 410, respectively, which can achieve uniform shunting of the to-be-shunted material in the reverse direction of gravity by the shunt device 400.

[0050] In one embodiment, the first cover plate 411 is provided with a first plate body 4112 and a first side portion 4113, and the second cover plate 413 is provided with a second plate body 4132 and a second side portion 4133, and the second side portion 4133 and the first side portion 4113 are respectively connected to two ends of the central pipe 412. In this embodiment, the first side portion 4113 is sleeved outside the central pipe 412, and the second side portion 4133 is also sleeved outside the central pipe 412, so that the assembly of the first cover plate 411, the second cover plate 413 and the central pipe 412 can be facilitated. Illustratively, the connection mode of the first side portion 4113 and one end of the central pipe 412 can be welding, threaded connection, interference fit, etc., and similarly, the connection mode of the second side portion 4133 and one end of the central pipe 412 can be welding, threaded connection, interference fit, etc., which is not limited in the present application.

[0051] In one embodiment, the first cover plate 411 is provided with an inlet hole 4114, one end of the inlet pipe 420 communicates with the shunt cavity 414 through the inlet hole 4114, the second cover plate 413 is provided with an outlet hole 4134, one end of the outlet pipe 430 communicates with the shunt cavity 414 through the outlet hole 4134, and the outlet hole 4134 is arranged along the outer periphery of the projection of the inlet hole 4114 on the second cover plate 413. In this way, the distribution of the material to be shunted can be more uniform. In this embodiment, the inlet hole 4114 can be a circular hole, or a square hole or other shaped hole, as long as the inlet hole 4114 can cooperate with the inlet pipe 420. Similarly, the outlet hole 4134 can be a circular hole, or a square hole or other shaped hole, as long as the outlet hole 4134 can cooperate with the outlet pipe 430, and the shape of the inlet hole 4114 and the outlet hole 4134 is not limited in the present application. Illustratively, the number of inlet holes 4114 is 1, and the number of outlet holes 4134 is 4, so that the material to be shunted in the shunt cavity 414 can be shunted. The number of inlet holes and outlet holes is not limited in the present application, as long as the number of inlet holes is less than the number of outlet holes, and the number of inlet holes and the number of inlet pipes are the same, and the number of outlet holes and the number of outlet pipes are the same.

[0052] It should be noted that the outer periphery of the projection of the inlet hole 4114 on the second cover plate 413 is not limited to a circular periphery, and the outer periphery matches the shape of the inlet hole 4114.

[0053] Further, the outlet holes 4134 are uniformly arranged along the outer periphery of the projection of the inlet hole 4114 on the second cover plate 413. In this way, the distribution of the material to be shunted can be more uniform.

[0054] In one embodiment, along the radial direction of the shunt main body 410, the distance between the central axis of each of the plurality of outlet holes 4134 and the central axis of the inlet hole 4114 is equal, so that the distribution of the material to be shunted can be more uniform.

[0055] Further, refer to Figure 3 The inlet hole 4114 and the outlet hole 4134 are both circular holes, and the projection of the inlet hole 4114 on the second cover plate 413 along the axial direction of the outlet hole 4134 (as shown in FIG. Figure 3 The first circle (shown by the dashed line in FIG) is a circle, and the centers of the plurality of outlet holes 4134 are equidistant from the center of the first circle. This allows the material to be diverted to simultaneously reach each outlet tube 430 from the inlet tube 420, further facilitating the diverter 400 to evenly distribute the material to each outlet tube 430.

[0056] Furthermore, the centers of the multiple outlet holes 4134 are located on the same circumference, which is defined as a second circle. The centers of the multiple outlet holes 4134 are evenly arranged along the circumference of the second circle. This allows for more even distribution of the diverted material and a more aesthetically pleasing arrangement of the outlet tubes 430 on the diverter 400.

[0057] In one embodiment, reference Figure 4 One end of the outlet pipe 430 extends into the diverter cavity 414, and one end of the inlet pipe 420 also extends into the diverter cavity 414. In this way, the structure of the diverter 400 can be made more compact.

[0058] In one embodiment, the first cover plate 411 is provided with a first wall 4111 opposite the outlet pipes 430, and the multiple outlet pipes 430 are equidistant from the first wall 4111. Since the distances between each outlet pipe 430 and the first wall 4111 are equidistant, the shortest distance between each outlet pipe 430 and the liquid surface in the diverter chamber 414 is the same. This allows the diverter 400 to evenly divert the refrigerant.

[0059] In one embodiment, the second cover plate 413 is provided with a second wall 4131 opposite the inlet pipe 420. In this embodiment, the first wall 4111 is parallel to the second wall 4131. In other words, the multiple outlet pipes 430 are equidistant from the second wall 4131. In this case, regardless of how the diverter 400 is installed or the direction of flow of the diverted material, the present application can still divert the material in the diverter 400.

[0060] Further, the distance between the first wall 4111 and the second wall 4131 is H1, the distance between the one end of the inlet pipe 420 extending into the distribution cavity 414 and the first wall 4111 is H2, the distance between the one end of the outlet pipe 430 extending into the distribution cavity 414 and the second wall 4131 is H3, H2+H3>H1. That is, the plurality of outlet pipes 430 surround the periphery of the inlet pipe 420, the one end of the plurality of outlet pipes 430 extending into the distribution cavity 414 and the one end of the inlet pipe 420 extending into the distribution cavity 414 have a certain overlap area in the axial direction of the central pipe 412, due to the disturbance effect, the to-be-distributed substance entering the distribution cavity and the outlet pipe flows in a serpentine shape, the to-be-distributed substance is deposited at the bottom of the distribution cavity and then evenly enters each outlet pipe, thus, it is beneficial to the uniform distribution of the to-be-distributed substance into the plurality of distribution pipes.

[0061] Further, referring to Figure 3 , the first cover plate 411 is provided with an inlet hole 4114, one end of the inlet pipe 420 communicates with the distribution cavity 414 through the inlet hole 4114, the second cover plate 413 is provided with an outlet hole 4134, one end of the outlet pipe 430 communicates with the distribution cavity 414 through the outlet hole 4134; the shortest distance between the orthographic projection of the inlet hole 4114 on the second cover plate 413 along the axial direction of the outlet hole 4134 and the outlet hole 4134 is d1, d1≥0.5mm. In this way, the problem that the flow distributor 400 cannot be processed and produced due to the too small distance between the inlet pipe 420 and the outlet pipe 430 can be avoided.

[0062] Further, the shortest distance d1 between the orthographic projection of the inlet hole 4114 on the second cover plate 413 along the axial direction of the outlet hole 4134 and the outlet hole 4134 is ≤5mm, in this way, the situation that the distribution effect of the flow distributor 400 is not good due to the too large shortest distance between the inlet pipe 420 and the outlet pipe 430 can be avoided. And the overall structure of the flow distributor 400 is too large, when the flow distributor 400 with too large structure is applied in the heat exchanger, the too large structure of the flow distributor 400 is not conducive to the arrangement of the heat exchanger. Specifically, d1 can be 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, or any other value within the range of 0.5mm≤d1≤5mm.

[0063] In one embodiment, 1mm≤H2≤5mm, in this way, the flow rate of the to-be-distributed substance when entering the distribution cavity 414 from the inlet pipe 420 can be ensured, so that the flow rate of the to-be-distributed substance in the distribution cavity 414 is uniform.

[0064] In one embodiment, 1mm≤H3≤5mm; in this way, the flow rate of the to-be-distributed substance in the distribution cavity 414 can be ensured to be moderate, so that the flow rate of the to-be-distributed substance when entering the outlet pipe 430 from the distribution cavity 414 is uniform.

[0065] In one embodiment, at least one of the outlet pipe 430, the inlet pipe 420, the central pipe 412, the first cover plate 411, and the second cover plate 413 is made of aluminum or aluminum alloy, so that the flow divider 400 has a lighter weight, sufficient strength, better corrosion resistance, and relatively low cost.

[0066] In one embodiment, the outer diameter of the outlet pipe 430 is 5mm to 8mm; so that the volume of the flow divider 400 can be moderate. Illustratively, the outer diameter of the outlet pipe 430 can also be 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, or a range consisting of any two of these values.

[0067] In one embodiment, the inner diameter of the outlet pipe 430 is 4mm to 7mm; so that the flow rate requirement of the material to be divided can be met. And when the flow divider 400 in this embodiment is applied in a heat exchanger, it can also meet the need of the heat exchanger for heat exchange with the material to be divided. Illustratively, the inner diameter of the outlet pipe 430 can also be 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, or a range consisting of any two of these values.

[0068] In one embodiment, the outer diameter of the inlet pipe 420 is 9mm to 13mm; illustratively, the outer diameter of the inlet pipe 420 can also be 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, or a range consisting of any two of these values.

[0069] In one embodiment, the inner diameter of the inlet pipe 420 is 8mm to 12mm; it can be understood that the inner diameter of the inlet pipe 420 is greater than the inner diameter of the outlet pipe 430, so that there is enough material to be divided in the flow dividing cavity 414. Illustratively, the inner diameter of the inlet pipe 420 can also be 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, or a range consisting of any two of these values.

[0070] In one embodiment, the thickness of the first cover plate 411 is 1.5mm to 3mm; so that the volume of the flow divider 400 can be moderate. Further, the thickness of the first cover plate 411 can also be 2mm to 2.5mm.

[0071] In one embodiment, the thickness of the second cover plate 413 is 1.5mm to 3mm; so that the volume of the flow divider 400 can be moderate. Further, the thickness of the second cover plate 413 can also be 2mm to 2.5mm.

[0072] In one embodiment, the length of the central tube 412 is 20mm to 50mm; in this way, it can be ensured that after the to-be-distributed substance enters the distribution cavity 414, there is sufficient distance to stabilize the flow rate of the to-be-distributed substance, and the length of the central tube 412 can be adjusted according to the use requirement. Illustratively, the length of the central tube 412 can also be 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, or a range formed by any two of these values.

[0073] In one embodiment, the wall thickness of the central tube 412 is 1.5mm to 2.5mm; in this way, it can be ensured that the central tube 412 has sufficient structural strength, while the structure of the flow distributor 400 can be compact in the circumferential direction of the central tube 412. It should be noted that the circumferential direction here is the extension direction of the outer wall of the central tube 412, and does not limit the central tube 412 to be a circular tube.

[0074] In one embodiment, the shortest distance between the outer wall of the outlet tube 430 and the inner wall of the central tube 412 is 0.5mm to 5mm; in this way, it does not affect the flow rate and flow of the to-be-distributed substance when entering the outlet tube 430. Illustratively, the distance between the outer wall of the outlet tube 430 and the inner wall of the central tube 412 can be 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, or a range formed by any two of these values.

[0075] As shown in Figure 5 The present application also provides a heat exchanger 10, which comprises a distribution assembly 200, a collecting outlet tube 300, a plurality of flat tubes 100, and a flow distributor 400 provided in any one of the above embodiments. The distribution assembly 200 is connected to the plurality of outlet tubes 430 of the flow distributor 400 and one end of the flat tubes 100, respectively, and the other end of the flat tubes 100 is connected to the collecting outlet tube 300. It should be noted that when the flow distributor 400 is applied in the heat exchanger 10, the to-be-distributed substance of the flow distributor 400 is refrigerant. In this way, the refrigerant flows into the distribution cavity 414 from the inlet tube 420 of the flow distributor 400, and then flows into the distribution assembly 200 from the outlet tube 430, so as to perform the first distribution of the refrigerant. The refrigerant in the distribution assembly 200 finally flows out from the collecting outlet tube 300 through the plurality of flat tubes 100. It should be noted that when the number of flat tubes 100 connected to the distribution assembly 200 is large, the refrigerant can be distributed for the second time through the distribution assembly 200; in this way, it can make the distribution of the refrigerant in the heat exchanger more uniform, and the specific distribution method is not limited by the present application.

[0076] Exemplarily, the flat tubes 100 in the heat exchanger 10 can be only one row, or can be multiple rows, and two adjacent rows of the flat tubes 100 can be communicated through an adapter or directly communicated. When the flat tubes 100 in the heat exchanger 10 are multiple rows, the flat tube 100 at one end communicated with the flow distribution assembly 200 is defined as a first flat tube, and the flat tube 100 at one end communicated with the flow collection outlet pipe 300 is defined as a second flat tube, and the other end of the first flat tube and the other end of the second flat tube are both communicated with the flat tubes 100 of other rows, so as to realize the distribution and flow of the refrigerant in the heat exchanger 10, and further realize the heat exchange function of the heat exchanger 10.

[0077] As shown in Figure 6 The application further provides an air conditioner 1, comprising a compressor 20, an evaporator 30, a throttling device 40 and a condenser 50, wherein the compressor 20, the evaporator 30, the throttling device 40 and the condenser 50 are sequentially connected and constitute a circulation loop. At least one of the condenser 50 and the evaporator 30 uses the heat exchanger 10 in the above-mentioned embodiments. Exemplarily, the compressor 20, the evaporator 30, the throttling device 40 and the condenser 50 can be sequentially connected using a connecting pipe 60, as shown in Figure 6 The application does not limit the connection mode thereof.

[0078] The technical features of the above-mentioned embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0079] The above-mentioned embodiments only express several implementation manners of the application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A diverter, characterized in that: The device comprises a diverter body, an inlet pipe and a plurality of outlet pipes, wherein the diverter body comprises a diverter cavity, the inlet pipe is connected to one end of the diverter body and communicates with the diverter cavity, and the outlet pipe is connected to the other end of the diverter body and communicates with the diverter cavity; The diverter body includes a first cover plate, a central tube, and a second cover plate. The second cover plate and the first cover plate are respectively connected to both ends of the central tube. The central tube, the first cover plate, and the second cover plate enclose the diverter cavity. The inlet pipe is connected to the first cover plate and communicates with the diverter cavity. The outlet pipe is connected to the second cover plate and communicates with the diverter cavity. The first cover plate is provided with an inlet hole, through which one end of the inlet pipe communicates with the diversion cavity; the second cover plate is provided with an outlet hole, through which one end of the outlet pipe communicates with the diversion cavity; the outlet holes are arranged at intervals along the periphery of the projection of the inlet hole on the second cover plate; The outlet holes are evenly arranged along the periphery of the projection of the inlet hole on the second cover plate; or, the distances between the central axes of the plurality of outlet holes and the central axis of the inlet hole are all equal.

2. The flow divider according to claim 1, characterized in that The first cover plate includes a first plate body and a first side portion, the first side portion is arranged around the edge of the first plate body, the second cover plate includes a second plate body and a second side portion, the second side portion is arranged around the edge of the second plate body, and the second side portion and the first side portion are respectively connected to the two ends of the central tube.

3. The flow divider according to claim 1, characterized in that One end of the outlet pipe extends into the diversion cavity, and one end of the inlet pipe extends into the diversion cavity.

4. The flow divider according to claim 3, characterized in that The first cover plate is provided with a first wall opposite to the outlet pipe, and the plurality of outlet pipes are at the same distance from the first wall; the second cover plate is provided with a second wall opposite to the inlet pipe, and the first wall is parallel to the second wall; The distance between the first wall and the second wall is H1, the distance between the end of the inlet pipe extending into the diversion cavity and the first wall is H2, and the distance between the end of the outlet pipe extending into the diversion cavity and the second wall is H3, H2+H3>H1.

5. The flow divider according to claim 4, characterized in that The distance between the inlet pipe and the outlet pipe is d1, 0.5mm≤d1≤5mm.

6. The flow divider according to claim 5, characterized in that 1mm≤H2≤5mm; and / or, 1mm≤H3≤5mm.

7. The flow divider according to any one of claims 1 to 6, characterized in that: The outer diameter of the outlet pipe is 5 mm to 8 mm; and / or, the inner diameter of the outlet pipe is 4 mm to 7 mm; and / or, the outer diameter of the inlet pipe is 9 mm to 13 mm; and / or, the inner diameter of the inlet pipe is 8 mm to 12 mm; and / or, the thickness of the first cover plate is 1.5 mm to 3 mm; and / or, the thickness of the second cover plate is 1.5 mm to 3 mm; and / or, the length of the central tube is 20 mm to 50 mm; And / or, the wall thickness of the central tube is 1.5 mm to 2.5 mm; And / or, the shortest distance between the outer wall of the outlet pipe and the inner wall of the central pipe is 0.5 mm to 5 mm.

8. A heat exchanger, characterized in that: It comprises a diverter assembly, a collecting outlet pipe, a flat tube and the diverter according to any one of claims 1 to 7, wherein the diverter assembly connects the multiple outlet pipes of the diverter and one end of the flat tube, and the other end of the flat tube is connected to the collecting outlet pipe.

9. An air conditioner, characterized in that: The heat exchanger comprises a compressor, an evaporator, a throttling device and a condenser. The compressor, the evaporator, the throttling device and the condenser are connected in sequence to form a circulation loop. At least one of the evaporator and the condenser is the heat exchanger according to claim 8.

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