Heat exchanger and refrigeration system

Abstract

The application relates to a heat exchanger and a refrigeration system, wherein the outlet of an inlet pipe and the inlet of part of a distribution pipe are oppositely arranged. A first distribution structure comprises a first distribution section, an impact jet flow section and a second distribution section which are sequentially connected along the arrangement direction of the distribution pipe, and the second distribution section and the first distribution section are arranged in mirror symmetry. The first distribution section comprises a flow guide part and a flow around part which are alternately arranged along the width direction of the distribution pipe. The flow around part comprises a plurality of liquid blocking strips, one end of the liquid blocking strip away from the flow guide part is arranged to shield the inlet of the distribution pipe and is spaced apart from the distribution pipe, and adjacent liquid blocking strips are spaced apart along the arrangement direction of the distribution pipe and form an inlet. The impact jet flow section is spaced apart from the distribution pipe, and the impact jet flow section is provided with a first jet flow surface at one end close to the first distribution section. The impact jet flow section is provided with a second jet flow surface at one end close to the second distribution section. The heat exchanger and the refrigeration system provided by the application solve the problem of uneven distribution of the inlet manifold.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and in particular to a heat exchanger and refrigeration system. Background Technology

[0002] Typically, a radiator includes an inlet pipe, an inlet manifold, and multiple distribution pipes (including but not limited to flat pipes). The inlet pipe is connected to multiple distribution pipes through the inlet manifold, so that the coolant enters the inlet manifold through the inlet pipe and is distributed to the multiple distribution pipes through the inlet manifold.

[0003] When the inlet pipe is connected to the end of the inlet manifold furthest from the distributor pipe, and the outlet of the inlet pipe faces the inlet of the distributor pipe, the liquid inlet volume of the distributor pipe closer to the outlet of the inlet pipe will be significantly greater than that of the distributor pipe farther from the outlet of the inlet pipe. In other words, the liquid inlet volume of the distributor pipe in different areas will vary significantly, resulting in inconsistent heat dissipation effect in different parts of the radiator, affecting the heat dissipation effect of the radiator, and may even cause excessive thermal strain in the distributor pipe closer to the outlet of the inlet pipe, leading to the breakage of the distributor pipe. Summary of the Invention

[0004] Therefore, it is necessary to provide a heat exchanger and refrigeration system to solve the problem of uneven liquid distribution in the liquid inlet manifold.

[0005] The heat exchanger provided in this application includes an inlet pipe, an inlet manifold, a distributor pipe, and a first distribution structure. The inlet pipe is connected to multiple distributor pipes through the inlet manifold, and is connected to the end of the inlet manifold away from the distributor pipes, so that the outlet of the inlet pipe and the inlet of some of the distributor pipes are directly opposite each other. The first distribution structure is disposed between the outlet of the inlet pipe and the inlet of the corresponding distributor pipe. The first distribution structure includes a first distribution section, an impingement jet section, and a second distribution section connected sequentially along the arrangement direction of the distributor pipes. The second distribution section and the first distribution section are arranged in a mirror image symmetrically. The first diversion section includes a guide section and a bypass section alternately arranged along the width direction of the distribution tubes. The guide section extends continuously along the arrangement direction of the distribution tubes and blocks part of the inlet of multiple distribution tubes. The bypass section is disposed at one or both ends of the guide section along the width direction of the distribution tubes. The bypass section includes multiple baffles, one end of which is connected to the guide section, and the other end extends away from the guide section along the width direction of the distribution tubes. The end of the baffle away from the guide section blocks the inlet of the distribution tubes and is spaced apart from the distribution tubes. Adjacent baffles are spaced apart along the arrangement direction of the distribution tubes and form a liquid inlet. The impingement jet section and the distribution tubes are arranged alternately. The impingement jet section has a first jet surface at one end near the first diversion section. One end of the first jet surface is connected to the first diversion section, and the other end extends towards the second diversion section. Furthermore, along the direction from the first diversion section to the second diversion section, the distance between the first jet surface and the end face where the inlet of the distribution tube is located tends to increase. The impact jet section has a second jet surface at one end near the second diversion section. One end of the second jet surface is connected to the second diversion section, and the other end extends toward the direction near the first diversion section. Furthermore, along the direction from the second diversion section to the first diversion section, the distance between the second jet surface and the end face where the liquid distribution pipe inlet is located tends to increase.

[0006] In one embodiment, the impact jet section includes a first bent plate, a second bent plate, and an intermediate connecting plate connecting the first bent plate and the second bent plate. The intermediate connecting plate extends along the arrangement direction of the liquid distribution pipe. The first bent plate and the second bent plate are respectively inclined relative to the end face where the liquid distribution pipe inlet is located. The first bent plate and the second bent plate are mirror-symmetrically arranged. The first jet surface is disposed on the first bent plate, and the second jet surface is disposed on the second bent plate.

[0007] In one embodiment, a first bending plate, an intermediate connecting plate, and a second bending plate are arranged to form a mixing cavity, which is located between the impinging jet section and the liquid distribution pipe. The impinging jet section has a connecting port that penetrates itself and connects to the mixing cavity.

[0008] In one embodiment, the first bending plate, the intermediate connecting plate, and the second bending plate are each provided with multiple through holes, which together form a communication port. Alternatively, the intermediate connecting plate has one or more notches at both ends along the width direction of the liquid distribution tube, which together form a communication port.

[0009] In one embodiment, the extension length of the first diversion structure along the direction of the distribution pipe arrangement is greater than the inner diameter of the inlet pipe along the direction of the distribution pipe arrangement. And / or, the extension length of the first diversion structure along the direction of the distribution pipe arrangement is less than the length of the heat exchanger along the direction of the distribution pipe arrangement.

[0010] In one embodiment, the extension length of the impinging jet section along the distribution pipe arrangement direction is greater than the inner diameter of the inlet pipe along the distribution pipe arrangement direction. Alternatively, the extension length of the impinging jet section along the distribution pipe arrangement direction is less than the inner diameter of the inlet pipe along the distribution pipe arrangement direction.

[0011] In one embodiment, the guide section and the dispensing tube are spaced apart.

[0012] In one embodiment, the liquid-blocking strip includes a connecting section and a stop section. The stop section is connected to the flow guide section via the connecting section, and the stop section and the distribution pipe are spaced apart. The connecting section is inclined relative to the end face at the inlet of the distribution pipe, while the end faces of the stop section and the inlet of the distribution pipe are parallel.

[0013] In one embodiment, the heat exchanger further includes an integrated main board, with one end of a plurality of liquid distribution tubes respectively fixedly inserted through the integrated main board. The first flow distribution section further includes a support portion, one end of which is connected to the flow guide portion, and the other end of which extends in a direction away from the flow surrounding portion. The first flow distribution section is connected to the integrated main board through the support portion.

[0014] This application also provides a refrigeration system, which includes the heat exchanger described in any of the above embodiments.

[0015] Compared with the prior art, the heat exchanger and refrigeration system provided in this application are configured such that after the coolant enters the inlet manifold, a portion of the coolant directly impacts the guide section and flows along the extension direction of the guide section. Since the guide section extends continuously along the arrangement direction of the distribution pipe, the coolant can flow along the extension direction of the guide section towards the entire inlet manifold.

[0016] Because the end of the baffle strip furthest from the guide section blocks the inlet of the distributor pipe, it effectively prevents coolant from directly impacting the flow path and entering the distributor pipe inlet. Furthermore, since the end of the baffle strip furthest from the guide section is spaced apart from the distributor pipe, and adjacent baffle strips are spaced apart along the distributor pipe's arrangement direction to form inlets, it can be seen that coolant can bypass the baffle strips through the inlets and enter the space between the baffle strips and the distributor pipe inlet, ultimately entering the distributor pipe itself.

[0017] The first and second jet surfaces act as reflective surfaces. Under the reflection of these surfaces, the flow direction of the coolant changes; that is, the flow direction changes from perpendicular to the end face of the distributor inlet to parallel to it. Furthermore, because the first and second jet surfaces face opposite directions, the coolant can flow rapidly through them towards the first and second branch sections, respectively, forming jets with opposite flow directions.

[0018] Taking the jet flowing towards the first branch section as an example, part of the jet merges with the coolant impacting the guide section after passing through the guide section, and flows towards the entire inlet manifold along the extension direction of the guide section. Another part of the jet passes through the bypass section. Since the bypass section has multiple inlets distributed along the direction of the distribution pipes, that is, multiple inlets are distributed along the flow direction of the jet, the jet flowing through the bypass section can gradually enter each inlet and enter the corresponding distribution pipe through each inlet.

[0019] Furthermore, since the end of the baffle strip away from the guide section is spaced apart from the distribution pipe, and the impact jet section and the distribution pipe are spaced apart, under the blocking effect of the baffle strip, part of the jet will flow back towards the space between the impact jet section and the distribution pipe and enter the corresponding distribution pipe.

[0020] Therefore, as can be seen from the above, taking the jet flowing towards the first diversion section as an example, a portion of the coolant can quickly flow through the first jet surface and the guide section to one side of the entire inlet manifold and enter the corresponding distribution pipe. Another portion of the coolant can enter the corresponding distribution pipe through multiple inlets, and the remaining portion of the coolant can flow back to the impact jet section and enter the corresponding distribution pipe. Therefore, by setting the first diversion section and the impact jet section, the jet flowing towards the first diversion section can enter the distribution pipes at various locations relatively evenly, avoiding most of the coolant entering the distribution pipes closer to the inlet pipe.

[0021] Since the second diversion section and the first diversion section are arranged in a mirror symmetry, with the cooperation of the second jet surface, the jet flowing through the second diversion section can also enter the liquid distribution tubes at various positions.

[0022] In summary, the coolant distributed throughout the inlet manifold can enter each of the distributor pipes. Therefore, this design prevents most of the coolant from entering only the distributor pipe directly opposite the inlet outlet, resulting in more uniform coolant flow across the different distributor pipes. This leads to more consistent heat dissipation throughout the radiator and reduces thermal strain in distributor pipes closer to the inlet outlet, preventing them from breaking. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of a heat exchanger according to an embodiment of this application;

[0025] Figure 2 An exploded view of a heat exchanger according to an embodiment provided in this application;

[0026] Figure 3 for Figure 2 An enlarged view of point A shown;

[0027] Figure 4 A schematic diagram of the first shunt structure provided in this application;

[0028] Figure 5 A schematic diagram of the first shunt structure according to another embodiment of this application;

[0029] Figure 6 A schematic diagram of the first shunt structure according to another embodiment provided in this application.

[0030] Reference numerals: 100, Inlet pipe; 200, Inlet manifold; 300, Divider pipe; 410, Integrated main board; 420, Main body; 430, First sealing cover; 440, Second sealing cover; 500, Outlet pipe; 600, Outlet manifold; 700, First diversion structure; 710, Guide section; 720, Flow bypass section; 721, Baffle strip; 722, Connecting section; 723, Stop section; 724, Inlet; 730 731. Support section; 732. Transition section; 733. Installation section; 740. First diversion section; 750. Second diversion section; 760. Impact jet section; 761. First jet surface; 762. Second jet surface; 763. First bending plate; 764. Second bending plate; 765. Intermediate connecting plate; 766. Mixing cavity; 767. Connecting port; 768. Through hole; 769. Notch; 800. Second diversion structure. Detailed Implementation

[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "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 based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] Typically, a radiator includes an inlet pipe, an inlet manifold, and multiple distribution pipes (including but not limited to flat pipes). The inlet pipe is connected to multiple distribution pipes through the inlet manifold, so that the coolant enters the inlet manifold through the inlet pipe and is distributed to the multiple distribution pipes through the inlet manifold.

[0038] When the inlet pipe is connected to the end of the inlet manifold furthest from the distributor pipe, and the outlet of the inlet pipe faces the inlet of the distributor pipe, the liquid inlet volume of the distributor pipe closer to the outlet of the inlet pipe will be significantly greater than that of the distributor pipe farther from the outlet of the inlet pipe. In other words, the liquid inlet volume of the distributor pipe in different areas will vary significantly, resulting in inconsistent heat dissipation effect in different parts of the radiator, affecting the heat dissipation effect of the radiator, and may even cause excessive thermal strain in the distributor pipe closer to the outlet of the inlet pipe, leading to the breakage of the distributor pipe.

[0039] Please see Figures 1-6 To address the problem of uneven liquid distribution in the liquid inlet manifold 200, this application provides a heat exchanger and a refrigeration system. The heat exchanger includes an inlet pipe 100, an inlet manifold 200, a distribution pipe 300, and a first diversion structure 700. The inlet pipe 100 is connected to multiple distribution pipes 300 through the liquid inlet manifold 200. Furthermore, the inlet pipe 100 is connected to the end of the liquid inlet manifold 200 away from the distribution pipes 300, so that the outlet of the inlet pipe 100 and the inlet of some of the distribution pipes 300 are directly opposite each other.

[0040] It should be noted that the reason why the "outlet of the inlet pipe 100" is directly opposite the "inlet of part of the distribution pipe 300" is because the diameter of the inlet pipe 100 is much smaller than the sum of the lengths of all the distribution pipes 300 along the arrangement direction. Furthermore, the diameter of the inlet pipe 100 is larger than the inner diameter of the distribution pipes 300 along the arrangement direction. Therefore, along the arrangement direction of the distribution pipes 300, the outlet of the inlet pipe 100 can only cover part of the inlet of the distribution pipes 300.

[0041] Furthermore, it should be noted that the arrangement direction of the liquid distribution tubes 300 refers to the arrangement direction of the liquid distribution tubes 300 inside the liquid inlet manifold 200, which is the same as the length direction of the liquid inlet manifold 200.

[0042] Specifically, in one embodiment, the flow direction of the coolant at the outlet of the inlet pipe 100 is defined as a preset flow direction, and the outlet of the inlet pipe 100 and the inlet of part of the distributor pipe 300 are arranged facing each other along the preset flow direction. With this arrangement, the flow direction of the coolant entering the inlet manifold 200 is directly opposite to the direction of the inlet of the distributor pipe 300, which is beneficial for the coolant to quickly enter the distributor pipe 300.

[0043] However, this is not the only option. In other embodiments, the preset flow direction can also be set at an angle relative to the inlet direction of the distribution pipe 300. When the preset flow direction is set perpendicular to the inlet direction of the distribution pipe 300, the coolant can flow quickly along the arrangement direction of the distribution pipe 300 after entering the inlet manifold 200. This is beneficial for the coolant to enter more distribution pipes 300.

[0044] Furthermore, such as Figures 2-3 As shown, the first diversion structure 700 is disposed between the outlet of the inlet pipe 100 and the inlet of the corresponding diversion pipe 300 (which can be one or more diversion pipes 300), such as... Figures 3-6 As shown, the first diversion structure 700 includes a first diversion section 740, an impact jet section 760, and a second diversion section 750 connected sequentially along the arrangement direction of the diversion pipe 300.

[0045] The first diversion section 740 includes a guide section 710 and a bypass section 720 alternately arranged along the width direction of the diversion tube 300.

[0046] First, it should be noted that the liquid distribution pipe 300 has a length direction, a width direction, and a thickness direction. In this application, the length direction of the liquid distribution pipe 300 is the direction of extension between the inlet end and the outlet end of the liquid distribution pipe 300, the thickness direction of the liquid distribution pipe 300 is the arrangement direction of the multiple liquid distribution pipes 300, and the width direction of the liquid distribution pipe 300 is the direction of flow of the airflow used for cooling in the external environment through the heat exchanger.

[0047] Specifically, in one embodiment, the dispensing tube 300 is in the shape of a flat tube, but it is not limited thereto. In other embodiments, the dispensing tube 300 may also be in the shape of a round tube, a square tube, or other shapes, which will not be listed here.

[0048] It should be noted that "the flow guiding part 710 and the flow surrounding part 720 are alternately distributed along the width direction of the liquid distribution pipe 300" means that neither the flow guiding part 710 nor the flow surrounding part 720 can completely cover the width direction of the liquid distribution pipe 300. That is, along its own width direction, part of the liquid distribution pipe 300 inlet faces the flow guiding part 710, and the other part of the liquid distribution pipe 300 inlet faces the flow surrounding part 720.

[0049] The guide section 710 extends continuously along the arrangement direction of the dispensing tubes 300 and blocks part of the inlet of multiple dispensing tubes 300.

[0050] With this configuration, after the coolant enters the inlet manifold 200, a portion of the coolant directly impacts the guide section 710 and flows along the extension direction of the guide section 710. Since the guide section 710 extends continuously along the arrangement direction of the distributor pipe 300, the coolant can flow along the extension direction of the guide section 710 towards the entire inlet manifold 200.

[0051] like Figures 4-6 As shown, the flow-around portion 720 is disposed at one or both ends of the flow-guiding portion 710 along the width direction of the liquid distribution pipe 300. The flow-around portion 720 includes a plurality of liquid-blocking strips 721. One end of the liquid-blocking strip 721 is connected to the flow-guiding portion 710, and the other end extends away from the flow-guiding portion 710 along the width direction of the liquid distribution pipe 300. The end of the liquid-blocking strip 721 away from the flow-guiding portion 710 blocks the inlet of the liquid distribution pipe 300 and is spaced apart from the liquid distribution pipe 300. Adjacent liquid-blocking strips 721 are spaced apart along the arrangement direction of the liquid distribution pipe 300 and form a liquid inlet 724.

[0052] Since the end of the baffle 721 furthest from the guide portion 710 blocks the inlet of the distributor pipe 300, it effectively blocks coolant from directly impacting the flow portion 720, preventing it from directly entering the inlet of the distributor pipe 300. Furthermore, because the end of the baffle 721 furthest from the guide portion 710 is spaced apart from the distributor pipe 300, and adjacent baffles 721 are spaced apart along the arrangement direction of the distributor pipe 300 to form an inlet 724, coolant can bypass the baffle 721 through the inlet 724 and enter between the baffle 721 and the inlet of the distributor pipe 300, ultimately entering the distributor pipe 300.

[0053] like Figures 4-6 As shown, the second diversion section 750 and the first diversion section 740 are arranged in a mirror-symmetric manner.

[0054] like Figures 4-6 As shown, the impinging jet section 760 and the liquid distribution pipe 300 are arranged at intervals. The impinging jet section 760 is provided with a first jet surface 761 at one end near the first distribution section 740. One end of the first jet surface 761 is connected to the first distribution section 740, and the other end extends toward the direction near the second distribution section 750. Furthermore, along the direction from the first distribution section 740 to the second distribution section 750, the distance between the first jet surface 761 and the end face where the inlet of the liquid distribution pipe 300 is located tends to increase, so that the first jet surface 761 is inclined relative to the end face where the inlet of the liquid distribution pipe 300 is located, and the first jet surface 761 is arranged toward the direction away from the second distribution section 750.

[0055] like Figures 4-6 As shown, the impact jet section 760 has a second jet surface 762 at one end near the second diversion section 750. One end of the second jet surface 762 is connected to the second diversion section 750, and the other end extends toward the first diversion section 740. Furthermore, along the direction from the second diversion section 750 to the first diversion section 740, the distance between the second jet surface 762 and the end face where the liquid distribution pipe 300 inlet is located tends to increase, so that the second jet surface 762 is inclined relative to the end face where the liquid distribution pipe 300 inlet is located, and the second jet surface 762 is arranged in a direction away from the first diversion section 740.

[0056] With this configuration, the first jet surface 761 and the second jet surface 762 essentially act as reflective surfaces. Under the reflection of the first jet surface 761 and the second jet surface 762, the flow direction of the coolant changes; that is, the flow direction of the coolant changes from being perpendicular to the end face where the inlet of the distributor pipe 300 is located to being parallel to the end face where the inlet of the distributor pipe 300 is located. Furthermore, because the first jet surface 761 and the second jet surface 762 are oriented in opposite directions, the coolant can flow rapidly through the first jet surface 761 and the second jet surface 762 towards the first distributor section 740 and the second distributor section 750 respectively, forming jets with opposite flow directions.

[0057] Taking the jet flowing toward the first diversion section 740 as an example, a portion of the jet merges with the coolant impacting the guide section 710 after passing through the guide section 710, and flows toward the entire inlet manifold 200 along the extension direction of the guide section 710. Another portion of the jet passes through the bypass section 720. Since the bypass section 720 is provided with multiple inlets 724 distributed along the arrangement direction of the diversion pipe 300, that is, the multiple inlets 724 are distributed along the flow direction of the jet, the jet flowing through the bypass section 720 can gradually enter each inlet 724 and enter the corresponding diversion pipe 300 through each inlet 724.

[0058] Furthermore, since the end of the baffle strip 721 away from the guide section 710 is spaced apart from the liquid distribution pipe 300, and the impact jet section 760 and the liquid distribution pipe 300 are spaced apart, under the blocking effect of the baffle strip 721, part of the jet will flow back towards the space between the impact jet section 760 and the liquid distribution pipe 300 and enter the corresponding liquid distribution pipe 300.

[0059] Therefore, as can be seen from the above, taking the jet flowing towards the first diversion section 740 as an example, a portion of the coolant can quickly flow to one side of the entire inlet manifold 200 and enter the corresponding distribution pipe 300 through the first jet surface 761 and the guide portion 710, while another portion of the coolant can enter the corresponding distribution pipe 300 through multiple inlets 724. The remaining portion of the coolant can flow back to the impact jet section 760 and enter the corresponding distribution pipe 300. Therefore, by setting the first diversion section 740 and the impact jet section 760, the jet flowing towards the first diversion section 740 can enter the distribution pipes 300 at various locations relatively evenly, avoiding most of the coolant entering the distribution pipes 300 closer to the inlet pipe 100.

[0060] Since the second diversion section 750 and the first diversion section 740 are arranged in a mirror symmetry, with the cooperation of the second jet surface 762, the jet flowing through the second diversion section 750 can also enter the liquid distribution pipe 300 at each position.

[0061] In summary, the coolant distributed throughout the inlet manifold 200 can enter each distributor pipe 300. Therefore, this design prevents most of the coolant from entering only the distributor pipe 300 directly opposite the outlet of the inlet pipe 100, resulting in more uniform coolant flow into the different distributor pipes 300. This leads to more consistent heat dissipation throughout the radiator and reduces thermal strain in the distributor pipes 300 closer to the outlet of the inlet pipe 100, preventing breakage of the distributor pipes 300.

[0062] In one embodiment, such as Figures 4-6 As shown, the impact jet section 760 includes a first bending plate 763, a second bending plate 764, and an intermediate connecting plate 765 connecting the first bending plate 763 and the second bending plate 764. The intermediate connecting plate 765 extends along the arrangement direction of the liquid distribution pipe 300. The first bending plate 763 and the second bending plate 764 are respectively inclined relative to the end face where the inlet of the liquid distribution pipe 300 is located. Furthermore, the first bending plate 763 and the second bending plate 764 are arranged in a mirror symmetrical manner. The first jet surface 761 is disposed on the first bending plate 763, and the second jet surface 762 is disposed on the second bending plate 764.

[0063] Because the first bending plate 763 and the second bending plate 764 are arranged in a mirror-symmetric manner, the included angle between them is relatively large (twice the included angle between the first bending plate 763 and the end face where the inlet of the liquid distribution pipe 300 is located). Therefore, regardless of whether the first bending plate 763 and the second bending plate 764 are welded or integrally bent, the connection strength between them will decrease. Therefore, by providing an intermediate connecting plate 765, the included angle between the intermediate connecting plate 765 and the first bending plate 763, as well as the included angle between the intermediate connecting plate 765 and the second bending plate 764, can be reduced, thereby enhancing the structural strength of the impact jet section 760.

[0064] In one embodiment, the first flow splitting structure 700 is an integrally stamped part. Specifically, the first flow splitting section 740, the impact jet section 760, and the second flow splitting section 750 are integrally stamped parts.

[0065] However, this is not the only option. In other embodiments, the first diversion structure 700 may also be a 3D printed structure or a one-piece cast structure.

[0066] Furthermore, in one embodiment, as Figures 5-6 As shown, the first bending plate 763, the intermediate connecting plate 765, and the second bending plate 764 enclose a mixing chamber 766, which is located between the impact jet section 760 and the distribution pipe 300. The impact jet section 760 has a connecting port 767 that penetrates itself and connects to the mixing chamber 766. Clearly, the inlet pipe 100 can connect to the mixing chamber 766 through the connecting port 767. With this configuration, when the coolant flow rate is very high, some coolant can enter the mixing chamber 766 through the connecting port 767, forming a mixed flow of coolant within the mixing chamber 766. A portion of this mixed flow can enter the corresponding distribution pipe 300 within the mixing chamber 766, while another portion can enter other distribution pipes 300 at different locations through the first distribution section 740 and the second distribution section 750, respectively, achieving a redistribution of the coolant and further improving the coolant distribution effect.

[0067] Specifically, in another embodiment, such as Figure 5 As shown, the first bending plate 763, the intermediate connecting plate 765 and the second bending plate 764 are respectively provided with multiple through holes 768, and the multiple through holes 768 together form a connecting port 767.

[0068] This allows for the control of the liquid inlet volume at various points in the mixing chamber 766 by setting through holes 768, thereby controlling the distribution of coolant in the distribution pipes 300 at various points.

[0069] However, this is not the only embodiment; in another embodiment, such as Figure 6As shown, the intermediate connecting plate 765 has one or more notches 769 at both ends along the width direction of the liquid distribution tube 300, and the notches 769 together form a connecting port 767.

[0070] In one embodiment, the extension length of the first diversion structure 700 along the arrangement direction of the liquid distribution pipe 300 is greater than the inner diameter of the inlet pipe 100 along the arrangement direction of the liquid distribution pipe 300.

[0071] This design allows most of the coolant to be guided by the first flow divider structure 700.

[0072] Specifically, in one embodiment, the orthographic projection of the outlet of the liquid inlet pipe 100 on the plane perpendicular to the preset flow direction is defined as the first orthographic projection, and the orthographic projection of the first diversion structure 700 on the plane perpendicular to the preset flow direction is defined as the second orthographic projection. Along the arrangement direction of the diversion pipes 300, the second orthographic projection covers the first orthographic projection, and along the width direction of the diversion pipes 300, the second orthographic projection covers the first orthographic projection.

[0073] This configuration ensures that all the coolant can directly impact the first distribution structure 700.

[0074] Furthermore, in one embodiment, the extension length of the first diversion structure 700 along the arrangement direction of the liquid distribution pipe 300 is less than the length of the heat exchanger along the arrangement direction of the liquid distribution pipe 300.

[0075] In this way, the length of the first distribution structure 700 can be ensured to be within a suitable range. On the one hand, this is conducive to the redistribution of coolant by the first distribution structure 700. On the other hand, it is conducive to reducing the volume of the first distribution structure 700, thereby reducing the installation difficulty of the first distribution structure 700.

[0076] In one embodiment, the extension length of the impact jet section 760 along the arrangement direction of the distribution pipe 300 is greater than the inner diameter of the inlet pipe 100 along the arrangement direction of the distribution pipe 300.

[0077] This configuration allows most of the coolant to flow in opposite directions through the impact jet section 760, increasing the flow velocity of the coolant in the inlet manifold 200 and thus improving the inlet efficiency of the inlet manifold 200.

[0078] However, this is not the only embodiment. In other embodiments, the extension length of the impact jet section 760 along the arrangement direction of the distribution pipe 300 is less than the inner diameter of the inlet pipe 100 along the arrangement direction of the distribution pipe 300. With this arrangement, some coolant directly impacts the first distribution section 740 and the second distribution section 750, which can also make the coolant evenly distributed.

[0079] In one embodiment, the flow guide 710 and the liquid distribution tube 300 are spaced apart.

[0080] With this configuration, the coolant entering through the inlet 724 can also enter the distributor 300 through the gap between the guide section 710 and the distributor 300, greatly improving the inlet efficiency of the distributor 300.

[0081] In one embodiment, the flow guide 710 is plate-shaped, the liquid baffle 721 is strip-shaped, and the flow surround 720 and the flow guide 710 are integrally formed.

[0082] Specifically, the flow-around part 720 and the flow-guiding part 710 are integrally formed by sheet metal stamping. In other embodiments, the flow-around part 720 and the flow-guiding part 710 can also be integrally formed by 3D printing or integrally cast.

[0083] However, it is not limited to this; the flow-around part 720 and the flow-guiding part 710 can also be welded.

[0084] Furthermore, in one embodiment, as Figures 4-6 As shown, the liquid-blocking strip 721 includes a connecting section 722 and a stop section 723. The stop section 723 is connected to the flow guide section 710 through the connecting section 722, and the stop section 723 and the liquid distribution pipe 300 are spaced apart.

[0085] Specifically, in one embodiment, the end faces of the connecting section 722 and the inlet of the liquid distribution pipe 300 are inclined, while the end faces of the stop section 723 and the inlet of the liquid distribution pipe 300 are parallel. The liquid-blocking strip 721 is formed by bending to create the connecting section 722 and the stop section 723.

[0086] The inclined connecting section 722 has a certain guiding effect on the coolant, which can concentrate the coolant towards the guide section 710 and form a liquid flow along the arrangement direction of the distributor pipe 300 in the guide section 710.

[0087] In one embodiment, such as Figure 2 As shown, the heat exchanger also includes an integrated main board 410, with one end of each of the multiple liquid distribution pipes 300 fixedly inserted into the integrated main board 410 to achieve the installation and fixation of the multiple liquid distribution pipes 300. The first diversion section 740 also includes a support part 730, one end of which is connected to the flow guide part 710, and the other end extends in a direction away from the flow bypass part 720. Furthermore, the first diversion section 740 is connected to the integrated main board 410 through the support part 730.

[0088] This design reduces the difficulty of assembling the first flow splitting structure 700 within the heat exchanger.

[0089] Specifically, in one embodiment, such as Figure 2 and Figure 3As shown, the integrated main board 410 is part of the liquid inlet manifold 200. The liquid inlet manifold 200 includes a main body 420, a first sealing cover plate 430, a second sealing cover plate 440 and the integrated main board 410. The integrated main board 410 is installed at one side opening of the main body 420, and the first sealing cover plate 430 and the second sealing cover plate 440 are respectively installed at both ends of the main body 420.

[0090] Furthermore, in one embodiment, the support portion 730 includes a plurality of support bars 731, one end of which is connected to the flow guide portion 710, and the other end extends along the width direction of the liquid distribution tube 300 in a direction away from the flow guide portion 710. In addition, the support bars 731 and the liquid blocking bars 721 are alternately distributed along the arrangement direction of the liquid distribution tube 300, and the first diversion section 740 is connected to the integrated motherboard 410 through the support bars 731.

[0091] Thus, the flow guide 710, the support 730, and the flow surround 720 form a structure similar to a piano.

[0092] Furthermore, in one embodiment, such as Figures 4-6 As shown, the support bar 731 includes a transition section 732 and a mounting section 733. The mounting section 733 is connected to the guide section 710 via the transition section 732. The support bar 731 is connected (including but not limited to welding) to the integrated main board 410 via the bottom of the mounting section 733. Furthermore, the side of the mounting section 733 is connected (including but not limited to welding) to the main body 420 of the liquid inlet manifold 200.

[0093] Specifically, in one embodiment, the transition section 732 is inclined relative to the end face of the inlet of the liquid distribution pipe 300, and the mounting section 733 is parallel to the end face of the inlet of the liquid distribution pipe 300. The support strip 731 is formed by bending to create the transition section 732 and the mounting section 733.

[0094] The inclined transition section 732 has a certain guiding effect on the coolant, which can make the coolant flow towards the inner wall of the inlet manifold 200 after impacting the transition section 732 and finally form a liquid flow that moves along the arrangement direction of the distributor pipe 300.

[0095] In one embodiment, the flow-around part 720, the flow-guiding part 710 and the support part 730 are integrally formed by sheet metal stamping. Specifically, the first flow-dividing section 740 is formed by cutting and stamping the sheet metal part.

[0096] However, this is not the only option. In other embodiments, the first diversion section 740 may also be welded or integrally cast.

[0097] In one embodiment, such as Figure 2As shown, the heat exchanger also includes an outlet pipe 500, an outlet manifold 600, and a second diversion structure 800. The outlet pipe 500 is connected to multiple diversion pipes 300 through the outlet manifold 600. The outlet pipe 500 is located at the end of the outlet manifold 600 away from the diversion pipes 300, so that the inlet of the outlet pipe 500 and the outlet of some of the diversion pipes 300 are directly opposite each other. The second diversion structure 800 is located between the inlet of the outlet pipe 500 and the outlet of the corresponding diversion pipe 300 (which may be one or more diversion pipes 300). The second diversion structure 800 is rotationally symmetrical about the first diversion structure 700.

[0098] In one embodiment, the liquid outlet manifold 600 and the liquid inlet manifold 200 are located at the same end of the heat exchanger.

[0099] However, this is not the only embodiment. In other embodiments, the liquid outlet manifold 600 and the liquid inlet manifold 200 may also be located at both ends of the heat exchanger.

[0100] This application also provides a refrigeration system, which includes the heat exchanger described in any of the above embodiments.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A heat exchanger, characterized in that, It includes an inlet pipe (100), an inlet manifold (200), a distributor pipe (300), and a first diversion structure (700). The inlet pipe (100) is connected to a plurality of distributor pipes (300) through the inlet manifold (200). The inlet pipe (100) is connected to the end of the inlet manifold (200) away from the distributor pipes (300) so that the outlet of the inlet pipe (100) and the inlet of part of the distributor pipes (300) are arranged facing each other. The first diversion structure (700) is disposed between the outlet of the inlet pipe (100) and the inlet of the corresponding diversion pipe (300). The first diversion structure (700) includes a first diversion section (740), an impact jet section (760) and a second diversion section (750) connected sequentially along the arrangement direction of the diversion pipes (300). The second diversion section (750) and the first diversion section (740) are arranged in a mirror symmetrical manner. The first diversion section (740) includes a guide section (710) and a flow-around section (720) alternately arranged along the width direction of the liquid distribution pipe (300); the guide section (710) extends continuously along the arrangement direction of the liquid distribution pipe (300) and blocks part of the inlet of a plurality of liquid distribution pipes (300); the flow-around section (720) is disposed at one or both ends of the guide section (710) along the width direction of the liquid distribution pipe (300), and the flow-around section (720) includes a plurality of liquid-blocking strips (7 21) One end of the liquid-blocking strip (721) is connected to the flow guide (710), and the other end extends along the width direction of the liquid distribution pipe (300) in a direction away from the flow guide (710). The end of the liquid-blocking strip (721) away from the flow guide (710) blocks the inlet of the liquid distribution pipe (300) and is spaced apart from the liquid distribution pipe (300). Adjacent liquid-blocking strips (721) are spaced apart along the arrangement direction of the liquid distribution pipe (300) and form a liquid inlet (724). The impact jet section (760) and the liquid distribution pipe (300) are spaced apart. The impact jet section (760) has a first jet surface (761) at one end near the first distribution section (740). One end of the first jet surface (761) is connected to the first distribution section (740), and the other end extends toward the direction near the second distribution section (750). Furthermore, along the direction from the first distribution section (740) to the second distribution section (750), the distance between the first jet surface (761) and the end face where the inlet of the liquid distribution pipe (300) is located tends to increase. The impact jet section (760) has a second jet surface (762) at one end near the second diversion section (750). One end of the second jet surface (762) is connected to the second diversion section (750), and the other end extends toward the first diversion section (740). Furthermore, along the direction from the second diversion section (750) to the first diversion section (740), the distance between the second jet surface (762) and the end face where the inlet of the liquid distribution pipe (300) is located tends to increase.

2. The heat exchanger according to claim 1, characterized in that, The impact jet section (760) includes a first bending plate (763), a second bending plate (764), and an intermediate connecting plate (765) connecting the first bending plate (763) and the second bending plate (764). The intermediate connecting plate (765) extends along the arrangement direction of the liquid distribution pipe (300). The first bending plate (763) and the second bending plate (764) are respectively inclined relative to the end face where the inlet of the liquid distribution pipe (300) is located. The first bending plate (763) and the second bending plate (764) are mirror-symmetrically arranged. The first jet surface (761) is disposed on the first bending plate (763), and the second jet surface (762) is disposed on the second bending plate (764).

3. The heat exchanger according to claim 2, characterized in that, The first bending plate (763), the intermediate connecting plate (765) and the second bending plate (764) surround to form a mixing cavity (766), the mixing cavity (766) is located between the impact jet section (760) and the liquid distribution pipe (300), and the impact jet section (760) is provided with a connecting port (767) that penetrates itself and connects to the mixing cavity (766).

4. The heat exchanger according to claim 3, characterized in that, The first bending plate (763), the intermediate connecting plate (765) and the second bending plate (764) are each provided with a plurality of through holes (768), and the plurality of through holes (768) together constitute the communication port (767); Alternatively, the intermediate connecting plate (765) may have one or more notches (769) at both ends along the width direction of the liquid distribution tube (300), and the notches (769) together constitute the communication port (767).

5. The heat exchanger according to claim 1, characterized in that, The first diversion structure (700) extends along the arrangement direction of the liquid distribution pipe (300) for a longer length than the inner diameter of the inlet pipe (100) along the arrangement direction of the liquid distribution pipe (300). And / or, the extension length of the first diversion structure (700) along the arrangement direction of the liquid distribution pipe (300) is less than the length of the heat exchanger along the arrangement direction of the liquid distribution pipe (300).

6. The heat exchanger according to claim 1, characterized in that, The extension length of the impact jet section (760) along the arrangement direction of the liquid distribution pipe (300) is greater than the inner diameter of the inlet pipe (100) along the arrangement direction of the liquid distribution pipe (300). Alternatively, the extension length of the impact jet section (760) along the arrangement direction of the distribution pipe (300) is less than the inner diameter of the inlet pipe (100) along the arrangement direction of the distribution pipe (300).

7. The heat exchanger according to claim 1, characterized in that, The flow guide (710) and the liquid separator (300) are spaced apart.

8. The heat exchanger according to claim 1, characterized in that, The liquid-blocking strip (721) includes a connecting section (722) and a stop section (723). The stop section (723) is connected to the flow guide (710) through the connecting section (722), and the stop section (723) and the liquid distribution pipe (300) are spaced apart. The connecting section (722) is inclined relative to the end face of the inlet of the liquid separator (300), and the stop section (723) is parallel to the end face of the inlet of the liquid separator (300).

9. The heat exchanger according to claim 1, characterized in that, It also includes an integrated main board (410), one end of each of the plurality of liquid distribution tubes (300) is fixedly inserted through the integrated main board (410), the first diversion section (740) also includes a support part (730), one end of the support part (730) is connected to the flow guide part (710), and the other end extends in a direction away from the flow bypass part (720), the first diversion section (740) is connected to the integrated main board (410) through the support part (730).

10. A refrigeration system, characterized in that, Includes the heat exchanger as described in any one of claims 1-9.

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