Heat exchanger and heat exchange system

Abstract

The application relates to the technical field of heat exchange, in particular to a heat exchanger and a heat exchange system. The heat exchanger comprises a first heat exchange pipe group and / or a second heat exchange pipe group, the first heat exchange pipe group comprises a first header, a second header and a plurality of first heat exchange pipes which are arranged at intervals along a first direction and extend along a second direction, one end of each first heat exchange pipe along the second direction is connected to the first header, and the other end is connected to the second header; the second heat exchange pipe group comprises a third header, a fourth header and a plurality of second heat exchange pipes which are arranged at intervals along the first direction, the second heat exchange pipes are arranged in a curve mode and are connected to the third header at one end along the extending direction of the second heat exchange pipes, and are connected to the fourth header at the other end, and the third header and the fourth header are arranged side by side along a third direction. The heat exchanger further comprises a connecting piece, and any two adjacent first heat exchange pipe groups and / or second heat exchange pipe groups are connected through the connecting piece. The above arrangement is beneficial to reducing the overall bending process, and special bending equipment is not needed, so that the production cost can be reduced.

Description

Technical Field

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

[0002] Microchannel heat exchangers have been widely used in small household appliances, such as small dryers, dishwashers, and ice makers. Due to the limited size of these small appliances, the heat exchanger products are required to be very small. As a result, the heat exchangers currently used in small household appliances are mainly in the form of multi-row flat tubes. The current main method is to use special bending equipment to bend the initially produced heat exchanger core multiple times. However, this process of bending the entire heat exchanger core is extremely complicated and affects production efficiency. Utility Model Content

[0003] Therefore, it is necessary to provide a heat exchanger that can simplify the process and improve production efficiency when assembling multiple rows of heat exchange tubes.

[0004] The heat exchanger includes a first heat exchange tube group and / or a second heat exchange tube group. The first heat exchange tube group includes a first manifold, a second manifold, and a plurality of first heat exchange tubes spaced apart along a first direction. Each first heat exchange tube extends along a second direction, with one end connected to the first manifold and the other end connected to the second manifold along the second direction. The second heat exchange tube group includes a third manifold, a fourth manifold, and a plurality of second heat exchange tubes spaced apart along the first direction. Each second heat exchange tube is bent and has one end connected to the third manifold along its own extension direction, and the other end connected to the fourth manifold. The third and fourth manifolds are arranged side-by-side along a third direction. The heat exchanger further includes a connector, through which any two adjacent first heat exchange tube groups and / or second heat exchange tube groups are connected; when the heat exchanger includes one of the first heat exchange tube group and the second heat exchange tube group, the number of the first heat exchange tube group or the second heat exchange tube group is limited to multiple, and the multiple first heat exchange tube groups or the second heat exchange tube groups are arranged side by side and connected along the third direction; when the heat exchanger includes both the first heat exchange tube group and the second heat exchange tube group, the first heat exchange tube group and the second heat exchange tube group are arranged side by side and connected along the third direction; the first direction, the second direction and the third direction are set at an angle to each other.

[0005] Understandably, the heat exchanger, by setting up multiple first heat exchange tube groups and / or multiple second heat exchange tube groups, allows the first, second, third, and fourth manifolds in any two adjacent first and / or second heat exchange tube groups to respectively serve as converging and diverting pipes. Adjacent units are connected via adapters, eliminating the need for a complete bending process on the heat exchange core, thus simplifying assembly. Furthermore, the second heat exchange tubes in the second heat exchange tube group are processed into a bent shape, meaning the bending occurs only during the processing of the second heat exchange tube. This bending process is simpler than a complete bending process, reducing the number of assembly steps. This configuration facilitates multi-row production, improves production efficiency, and eliminates the need for dedicated bending equipment, thereby reducing production costs.

[0006] In one embodiment, the heat exchanger includes a first heat exchange tube group and a second heat exchange tube group; In any two adjacent first heat exchanger tube groups and second heat exchanger tube groups, the first heat exchanger tube group has a first flow hole, and the second heat exchanger tube group has a second flow hole. The first flow hole and the second flow hole are arranged opposite to each other and are connected. The adapter is attached to and connected between the outer tube walls where the first flow hole and the second flow hole are located, and the adapter extends from the edges of the first flow hole and the second flow hole.

[0007] In one embodiment, the adapter extends at least to the apex of at least one of the first heat exchanger tube assembly and the second heat exchanger tube assembly facing outward in the second direction.

[0008] In one embodiment, the heat exchanger includes a first heat exchange tube group and a second heat exchange tube group; The adapter is connected between two adjacent first heat exchanger tube groups and the second heat exchanger tube group, and is configured with a third flow hole that connects the two adjacent first heat exchanger tube groups and the second heat exchanger tube group.

[0009] In one embodiment, the total flow cross-sectional area of ​​the third flow hole is greater than the sum of the flow cross-sectional areas of the plurality of first heat exchange tubes in the first heat exchange tube group; and / or, the total flow cross-sectional area of ​​the third flow hole is greater than the sum of the flow cross-sectional areas of the plurality of second heat exchange tubes in the second heat exchange tube group.

[0010] In one embodiment, fluid is defined to enter from the first manifold and exit from the second manifold, and the fluid is defined to enter from the third manifold and exit from the fourth manifold; In any two adjacent first heat exchanger tube groups, the second manifold of the preceding first heat exchanger tube group is connected to the first manifold of the following first heat exchanger tube group via the adapter; and / or, in any two adjacent second heat exchanger tube groups, the fourth manifold of the preceding second heat exchanger tube group is connected to the third manifold of the following second heat exchanger tube group via the adapter; and / or, in any two adjacent first heat exchanger tube groups and second heat exchanger tube groups, the second manifold of the preceding first heat exchanger tube group is connected to the third manifold of the following second heat exchanger tube group via the adapter; and / or, in any two adjacent first heat exchanger tube groups and second heat exchanger tube groups, the fourth manifold of the preceding second heat exchanger tube group is connected to the first manifold of the following first heat exchanger tube group via the adapter.

[0011] In one embodiment, the heat exchanger includes a first heat exchange tube group and a second heat exchange tube group, wherein the number of the first heat exchange tube group and / or the second heat exchange tube group is at least two, and the first heat exchange tube group and the second heat exchange tube group are assembled in a reciprocating bending structure along the third direction.

[0012] In one embodiment, the number of the first heat exchange tube group is at least two, and the first heat exchange tube group is provided on at least one side of the second heat exchange tube group along the third direction; or, the number of the second heat exchange tube group is at least two, and the second heat exchange tube group is provided on at least one side of the first heat exchange tube group along the third direction; or, the number of both the first heat exchange tube group and the second heat exchange tube group is multiple, and the multiple first heat exchange tube groups and second heat exchange tube groups are alternately arranged along the third direction.

[0013] In one embodiment, along the third direction, one end of the heat exchanger is defined as a gas inlet / outlet, and the other end is defined as a liquid inlet / outlet; The heat exchanger includes a first heat exchange tube group and a second heat exchange tube group; from the gas inlet / outlet end toward the liquid inlet / outlet end, along the extension direction of the heat exchanger, in any two adjacent second manifolds and the third manifold, or in any two adjacent fourth manifolds and the first manifold, the inner diameter of the one closer to the gas inlet / outlet end is larger than the inner diameter of the other.

[0014] This application also provides a heat exchange system including the heat exchanger described above. Attached Figure Description

[0015] 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.

[0016] Figure 1 A top view of a connection method in a first embodiment of the heat exchanger provided in this application; Figure 2 A top view of another connection method in a first embodiment of the heat exchanger provided in this application; Figure 3 A top view of a connection method in a second embodiment of the heat exchanger provided in this application; Figure 4 A top view of another connection method in a second embodiment of the heat exchanger provided in this application; Figure 5 A top view of one connection method in a third embodiment of the heat exchanger provided in this application; Figure 6 A perspective view of a connection method in a third embodiment of the heat exchanger provided in this application; Figure 7 A top view of another connection method in a third embodiment of the heat exchanger provided in this application; Figure 8 A perspective view of another connection method in a third embodiment of the heat exchanger provided in this application; Figure 9 A front view of another connection method in a third embodiment of the heat exchanger provided in this application; Figure 10 This is a cross-sectional view of another connection method in a third embodiment of the heat exchanger provided in this application.

[0017] Reference numerals: 100, heat exchanger; 10, first heat exchange tube assembly; 11, first manifold; 12, second manifold; 13, first heat exchange tube; 20, second heat exchange tube assembly; 21, third manifold; 22, fourth manifold; 23, second heat exchange tube; 30, adapter; 301, third flow hole; 41, first flow seat; 42, second flow seat. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is referred to as being "fixed to," "set on," or "properly placed on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0020] 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.

[0021] 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 and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates 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 indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in 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 in this application includes any and all combinations of one or more of the associated listed items.

[0023] In related technologies, to meet the heat dissipation requirements of small household appliances, heat exchanger production typically involves first machining a heat exchange core, and then bending the core to form multiple rows of heat exchange tubes to accommodate the miniaturization design of small appliances. However, the heat exchange core is relatively large, requiring specialized bending equipment. The bending process is complex and the equipment is expensive, resulting in high production costs for heat exchangers.

[0024] Therefore, please refer to Figures 1 to 10 This application provides a heat exchanger 100, which includes a first heat exchange tube group 10 and / or a second heat exchange tube group 20, which are arranged and combined to form a multi-row heat exchange tube group.

[0025] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in an optional embodiment, the first heat exchange tube group 10 includes a first manifold 11, a second manifold 12, and a plurality of first heat exchange tubes 13 spaced apart along a first direction. Each first heat exchange tube 13 extends along a second direction, with one end of each first heat exchange tube 13 connected to the first manifold 11 and the other end connected to the second manifold 12 along the second direction.

[0026] For ease of explanation, in this application, the fluid is defined as entering from the first manifold 11 and flowing out from the second manifold 12. The first manifold 11 diverts the fluid to a plurality of first heat exchange tubes 13, and the fluid after heat exchange can re-converge into the second manifold 12 and flow out.

[0027] In a specific embodiment, the first heat exchange tube assembly 10 is arranged straight along the second direction, which makes it easy to process.

[0028] like Figures 3 to 10 As shown, in an optional embodiment, the second heat exchange tube group 20 includes a third manifold 21, a fourth manifold 22, and a plurality of second heat exchange tubes 23 spaced apart along a first direction. The second heat exchange tubes 23 are bent and one end is connected to the third manifold 21 along its own extension direction, and the other end is connected to the fourth manifold 22. The third manifold 21 and the fourth manifold 22 are arranged side by side along a third direction.

[0029] For ease of explanation, in this application, the fluid is defined as entering from the third manifold 21 and exiting from the fourth manifold 22. The third manifold 21 can divert the fluid to multiple second heat exchange tubes 23, and the fluid after heat exchange can re-converge into the fourth manifold 22 and exit.

[0030] In a specific embodiment, the second heat exchange tube 23 is bent, requiring only independent bending processing. The second heat exchange tube 23 is relatively small compared to the entire heat exchange core, making bending easy. Furthermore, the arrangement of one second heat exchange tube group 20 can meet the requirement of two rows of heat exchange tubes in the heat exchanger 100, reducing the number of assembly steps and improving production efficiency.

[0031] like Figure 1 and Figure 2 As shown, in a first optional embodiment, the heat exchanger 100 includes only a first heat exchange tube group 10. In this case, there are multiple first heat exchange tube groups 10, which are arranged and connected in parallel along a third direction to form multiple rows of first heat exchange tube groups 10.

[0032] like Figure 3 and Figure 4 As shown, in the second optional embodiment, the heat exchanger 100 includes only the second heat exchange tube group 20. In this case, there are multiple second heat exchange tube groups 20, which are arranged and connected in parallel along a third direction to form multiple rows of second heat exchange tube groups 20.

[0033] like Figures 5 to 10 As shown, in the third optional embodiment, the heat exchanger 100 includes both a first heat exchange tube group 10 and a second heat exchange tube group 20, which are arranged side by side and connected along a third direction.

[0034] In an optional embodiment, the heat exchanger 100 further includes a connector 30, through which any two adjacent first heat exchange tube groups 10 and / or second heat exchange tube groups 20 are connected. This simplifies assembly, reduces bending, and eliminates the need for complex bending processes, allowing the heat exchanger 100 to form a reciprocating coiled heat exchange flow path, thereby extending the heat exchange path. Furthermore, it eliminates the need for specialized overall bending equipment, reducing production costs. Simultaneously, this application allows for flexible selection of the first heat exchange tube group 10 and the second heat exchange tube group 20 according to actual operating conditions, enabling flexible design of the heat exchanger 100's circuitry. This allows for meeting the heat exchange requirements of various electrical appliances and reducing the length of external connecting pipes while satisfying heat exchange needs through flexible circuit design.

[0035] The first direction, the second direction, and the third direction are set at an angle to each other. For ease of explanation, the first direction, the second direction, and the third direction are set perpendicular to each other, with the first direction as the z-axis, the second direction as the y-axis, and the third direction as the x-axis.

[0036] In a specific embodiment, in any two adjacent first heat exchanger tube groups 10, the second manifold 12 of the first first heat exchanger tube group 10 is connected to the first manifold 11 of the second first heat exchanger tube group 10 through the adapter 30, so as to form two rows of structures in the reciprocating flow path without bending.

[0037] In a specific embodiment, in any two adjacent second heat exchange tube groups 20, the fourth manifold 22 of the first second heat exchange tube group 20 is connected to the third manifold 21 of the second second heat exchange tube group 20 through the adapter 30, so as to form a four-row structure in the reciprocating flow path, thereby reducing the bending process and reducing the bending difficulty.

[0038] In a specific embodiment, in any two adjacent first heat exchanger tube groups 10 and second heat exchanger tube groups 20, the second manifold 12 of the first heat exchanger tube group 10 is connected to the third manifold 21 of the second heat exchanger tube group 20 through the adapter 30, so as to form a three-row structure in the reciprocating flow path, thereby reducing the bending process and reducing the difficulty of bending.

[0039] In a specific embodiment, in any two adjacent first heat exchanger tube groups 10 and second heat exchanger tube groups 20, the fourth manifold 22 of the first second heat exchanger tube group 20 is connected to the first manifold 11 of the second first heat exchanger tube group 10 through the adapter 30, so as to form a three-row structure in the reciprocating flow path, thereby reducing the bending process and reducing the bending difficulty.

[0040] In a specific embodiment, the heat exchanger 100 includes a first heat exchange tube group 10 and a second heat exchange tube group 20. The number of the first heat exchange tube group 10 and / or the second heat exchange tube group 20 is at least two. The first heat exchange tube group 10 and the second heat exchange tube group 20 are assembled along a third direction to form a reciprocating bending structure, thereby forming a reciprocating coiled heat exchange flow path. For example, the heat exchanger 100 formed is in a serpentine coiled shape to increase the heat exchange area, extend the heat exchange time, and improve the heat exchange efficiency.

[0041] In a specific embodiment, the number of first heat exchange tube groups 10 is at least two, and along a third direction, at least one side of the second heat exchange tube group 20 is provided with a first heat exchange tube group 10. For example, at least two first heat exchange tube groups 10 are located on one side of the second heat exchange tube group 20 along a third direction, or, along a third direction, at least one first heat exchange tube group 10 is provided on one side of the second heat exchange tube 23, and at least one first heat exchange tube group 10 is also provided on the other side, depending on the operating conditions.

[0042] In another specific embodiment, the number of second heat exchange tube groups 20 is at least two, and along a third direction, at least one side of the first heat exchange tube group 10 is provided with a second heat exchange tube group 20. For example, at least two second heat exchange tube groups 20 are located on one side of the first heat exchange tube group 10 along a third direction, or, along a third direction, at least one second heat exchange tube group 20 is provided on one side of the first heat exchange tube 13, and at least one second heat exchange tube group 20 is also provided on the other side, depending on the operating conditions.

[0043] In more embodiments, there are multiple first heat exchange tube groups 10 and multiple second heat exchange tube groups 20. The multiple first heat exchange tube groups 10 and multiple second heat exchange tube groups 20 are arranged alternately along a third direction to form a regular reciprocating bending and coiling structure, which is beneficial to improving heat exchange efficiency.

[0044] For ease of explanation, this application uses the connection of the first heat exchange tube group 10 and the second heat exchange tube group 20 via the adapter 30 as an example. The connection between two adjacent first heat exchange tube groups 10 or two adjacent second heat exchange tube groups 20 can also be referred to, and will not be elaborated here.

[0045] In a specific embodiment, the adapter 30 achieves a sealed connection and fixation between the first heat exchange tube group 10 and the second heat exchange tube group 20 by welding, which has high connection strength and connection stability. The full penetration of the solder helps to promote the sealing of the connection.

[0046] In a specific embodiment, multiple adapters 30 may be provided, with the multiple adapters 30 spaced apart along the first direction, or they may be provided as one; this is not limited here.

[0047] In one specific embodiment, in any two adjacent first heat exchanger tube groups 10 and second heat exchanger tube groups 20, the first heat exchanger tube group 10 has a first flow hole, and the second heat exchanger tube group 20 has a second flow hole. The first flow hole and the second flow hole are arranged opposite to each other and are connected. For example, the second manifold 12 has a first flow hole, and the third manifold 21 has a second flow hole; or, the fourth manifold 22 has a second flow hole, and the first manifold 11 has a first flow hole.

[0048] like Figure 5 and Figure 6 As shown, taking the fourth manifold 22 with a second flow hole and the first manifold 11 with a first flow hole as an example, the adapter 30 is attached to and connected between the outer pipe walls where the first flow hole and the second flow hole are respectively located. The adapter 30 extends from the edge of the first flow hole and the second flow hole, that is, the adapter 30 is attached to and connected between the fourth manifold 22 and the first manifold 11. The adapter 30 is located around the first flow hole and the second flow hole to form a seal for the connection between the first flow hole and the second flow hole.

[0049] like Figure 5 and Figure 6 As shown, in a specific embodiment, the adapter 30 extends at least to the outward-facing vertex of at least one of the first heat exchange tube group 10 and the second heat exchange tube group 20 in the second direction. That is, the adapter 30 extends circumferentially from the edge of the first flow hole along the first manifold 11 and covers the outward-facing bend vertex of the first manifold 11 in the second direction. Alternatively, the adapter 30 extends circumferentially from the edge of the second flow hole along the fourth manifold 22 and covers the outward-facing bend vertex of the fourth manifold 22 in the second direction. This ensures a large coverage area, facilitating effective support during assembly, and the sufficiently large welding area also improves the sealing of the connection.

[0050] like Figures 7 to 10 As shown, in another specific embodiment, the adapter 30 is connected between two adjacent first heat exchange tube groups 10 and second heat exchange tube groups 20, and is constructed with a third flow hole 301 that connects the two adjacent first heat exchange tube groups 10 and second heat exchange tube groups 20. That is, the first heat exchange tube group 10 communicates with the second heat exchange tube group 20 through the third flow hole 301 of the adapter 30.

[0051] In some embodiments, the total flow cross-sectional area of ​​the third flow holes 301 is greater than the sum of the flow cross-sectional areas of the plurality of first heat exchange tubes 13 in the first heat exchange tube group 10. In this case, fluid flows from the first heat exchange tube group 10 to the adapter 30. Specifically, the total flow cross-sectional area of ​​the third flow holes 301 is the sum of the flow cross-sectional areas of all third flow holes 301 along the first direction between two adjacent first heat exchange tube groups 10 and the second heat exchange tube group 20. The sum of the flow cross-sectional areas of the plurality of first heat exchange tubes 13 specifically refers to the sum of the flow cross-sectional areas of the fluid outlets of all first heat exchange tubes 13 in the first heat exchange tube group 10. This arrangement facilitates smooth fluid flow.

[0052] In other embodiments, the total flow cross-sectional area of ​​the third flow hole 301 is greater than the sum of the flow cross-sectional areas of the plurality of second heat exchange tubes 23 in the second heat exchange tube group 20. In this case, the fluid flows from the first heat exchange tube group 10 to the adapter 30. Specifically, the total flow cross-sectional area of ​​the third flow hole 301 is the sum of the flow cross-sectional areas of all third flow holes 301 along the first direction between two adjacent first heat exchange tube groups 10 and second heat exchange tube groups 20. The sum of the flow cross-sectional areas of the plurality of second heat exchange tubes 23 specifically refers to the sum of the flow cross-sectional areas of the fluid outlets of all second heat exchange tubes 23 in the second heat exchange tube group 20. This arrangement facilitates smooth fluid flow.

[0053] In a specific embodiment, the adapter 30 is configured as a block or strip shape, which has a simple structure and is easy to process.

[0054] Taking the fourth manifold 22 connected to the first manifold 11 via the adapter 30 as an example, the adapter 30 is attached to the fourth manifold 22 and the first manifold 11 to ensure the sealing of the connection.

[0055] In a specific embodiment, along a third direction, one end of the heat exchanger 100 is defined as a gas inlet / outlet, and the other end is defined as a liquid inlet / outlet. Along the extension direction of the heat exchanger 100, the diameter of the multiple manifolds gradually decreases from the gas inlet / outlet towards the liquid inlet / outlet to accommodate gas volume expansion, accommodate more gas, reduce the space at the liquid inlet / outlet, promote rapid liquid flow, and save materials. For example, high-temperature gas enters the heat exchanger from the gas inlet / outlet, exchanges heat with the external environment, releases heat, transforms into liquid, and is output from the liquid inlet / outlet. Conversely, low-temperature liquid can also enter the heat exchanger from the liquid inlet / outlet, absorb heat from the external environment, transform into high-temperature gas, and be output from the gas inlet / outlet.

[0056] In a specific embodiment, from the gas inlet / outlet end towards the liquid inlet / outlet end, along the extension direction of the heat exchanger 100, in any two adjacent second manifolds 12 and third manifolds 21, or in any two adjacent fourth manifolds 22 and first manifolds 11, the inner diameter of the one closer to the gas inlet / outlet end is larger than the inner diameter of the other. In other embodiments, the diameters of the first manifold 11, second manifold 12, third manifold 21, and fourth manifold 22 can also be set to be equal to simplify production.

[0057] In a specific embodiment, the second heat exchange tube 23 includes a first tube section, a second tube section, and a bent tube section connecting the first and second tube sections. The bent tube section can be processed separately and then assembled with the first and second tube sections for ease of production. The first tube section is connected to the third manifold 21, and the second tube section is connected to the fourth manifold 22. Fins can be fitted at the bent tube section to improve heat exchange performance.

[0058] In a specific embodiment, the gap between any two adjacent first heat exchanger tube groups 10 and second heat exchanger tube groups 20 can be set to be equal or unequal, and no limitation is made here.

[0059] In a specific embodiment, along a third direction, the dimensions of the first heat exchange tube 13 and the second heat exchange tube 23 may be equal or unequal, and this is not limited here.

[0060] like Figures 1 to 10As shown, in a specific embodiment, the heat exchanger 100 further includes a first flow seat 41 and a second flow seat 42. Exemplarily, along a third direction, one side of the heat exchanger 100 is a first heat exchange tube group 10, and the other side is a second heat exchange tube group 20. The first flow seat 41 is installed on the third manifold 21 to connect to an external pipe, facilitating fluid inflow. The second flow seat 42 is installed on the second manifold 12 to connect to an external pipe, facilitating fluid outflow. The above example can be used when the heat exchanger 100 is arranged in other ways; no specific limitations are made here.

[0061] In some embodiments, the heat exchanger 100 further includes fins installed on the first heat exchange tube group 10 and the second heat exchange tube group 20 to increase the heat exchange area and improve the heat exchange performance.

[0062] This application also provides a heat exchange system, including the heat exchanger 100 described above, which can meet the needs of multiple rows of heat exchange tubes through the flexible combination of the first heat exchange tube group 10 and / or the second heat exchange tube group 20, so as to adapt to different types of electrical appliances. The system is simple to assemble, has fewer bending processes, and is conducive to improving assembly efficiency and reducing production costs.

[0063] 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.

[0064] 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, The heat exchanger includes: The first heat exchange tube group (10) includes a first manifold (11), a second manifold (12), and a plurality of first heat exchange tubes (13) spaced apart along a first direction. Each first heat exchange tube (13) extends along a second direction, with one end of each first heat exchange tube (13) connected to the first manifold (11) and the other end connected to the second manifold (12) along the second direction; and / or, The second heat exchange tube group (20) includes a third manifold (21), a fourth manifold (22) and a plurality of second heat exchange tubes (23) spaced apart along the first direction. The second heat exchange tubes (23) are bent and one end is connected to the third manifold (21) along their own extension direction, and the other end is connected to the fourth manifold (22). The third manifold (21) and the fourth manifold (22) are arranged side by side along the third direction. The heat exchanger (100) further includes a connector (30), through which any two adjacent first heat exchange tube groups (10) and / or second heat exchange tube groups (20) are connected; When the heat exchanger (100) includes one of the first heat exchange tube group (10) and the second heat exchange tube group (20), the number of the first heat exchange tube group (10) or the second heat exchange tube group (20) is limited to a plurality of them, and the plurality of the first heat exchange tube groups (10) or the second heat exchange tube groups (20) are arranged side by side along the third direction; when the heat exchanger (100) includes both the first heat exchange tube group (10) and the second heat exchange tube group (20), the first heat exchange tube group (10) and the second heat exchange tube group (20) are arranged side by side along the third direction; The first direction, the second direction, and the third direction are set at an angle to each other.

2. The heat exchanger according to claim 1, characterized in that, The heat exchanger (100) includes the first heat exchange tube group (10) and the second heat exchange tube group (20). In any two adjacent first heat exchange tube groups (10) and second heat exchange tube groups (20), the first heat exchange tube group (10) has a first flow hole, and the second heat exchange tube group (20) has a second flow hole. The first flow hole and the second flow hole are arranged opposite to each other and are connected. The adapter (30) is attached to and connected between the outer tube walls where the first flow hole and the second flow hole are located, and the adapter (30) extends from the edges of the first flow hole and the second flow hole.

3. The heat exchanger according to claim 2, characterized in that, The adapter (30) extends at least to the apex of at least one of the first heat exchange tube group (10) and the second heat exchange tube group (20) facing outward in the second direction.

4. The heat exchanger according to claim 1, characterized in that, The heat exchanger (100) includes the first heat exchange tube group (10) and the second heat exchange tube group (20). The adapter (30) is connected between two adjacent first heat exchange tube groups (10) and second heat exchange tube groups (20), and is provided with a third flow hole (301) that connects the two adjacent first heat exchange tube groups (10) and second heat exchange tube groups (20).

5. The heat exchanger according to claim 4, characterized in that, The total flow cross-sectional area of ​​the third flow hole (301) is greater than the sum of the flow cross-sectional areas of the plurality of first heat exchange tubes (13) in the first heat exchange tube group (10); and / or, the total flow cross-sectional area of ​​the third flow hole (301) is greater than the sum of the flow cross-sectional areas of the plurality of second heat exchange tubes (23) in the second heat exchange tube group (20).

6. The heat exchanger according to any one of claims 1 to 5, characterized in that, The fluid is limited to entering from the first manifold (11) and exiting from the second manifold (12), and the fluid is limited to entering from the third manifold (21) and exiting from the fourth manifold (22); In any two adjacent first heat exchanger tube groups (10), the second manifold (12) of the preceding first heat exchanger tube group (10) is connected to the first manifold (11) of the following first heat exchanger tube group (10) via the adapter (30); and / or, In any two adjacent second heat exchanger tube groups (20), the fourth manifold (22) of the preceding second heat exchanger tube group (20) is connected to the third manifold (21) of the following second heat exchanger tube group (20) via the adapter (30); and / or, In any two adjacent first heat exchanger tube groups (10) and second heat exchanger tube groups (20), the second manifold of the preceding first heat exchanger tube group (10) is connected to the third manifold (21) of the following second heat exchanger tube group (20) via the adapter (30); and / or, In any two adjacent first heat exchanger tube groups (10) and second heat exchanger tube groups (20), the fourth manifold (22) of the first second heat exchanger tube group (20) is connected to the first manifold (11) of the second first heat exchanger tube group (10) through the adapter (30).

7. The heat exchanger according to claim 6, characterized in that, The heat exchanger (100) includes a first heat exchange tube group (10) and a second heat exchange tube group (20), and the number of the first heat exchange tube group (10) and / or the second heat exchange tube group (20) is at least two. The first heat exchange tube group (10) and the second heat exchange tube group (20) are assembled along the third direction to form a reciprocating bending structure.

8. The heat exchanger according to claim 7, characterized in that, The number of the first heat exchange tube group (10) is at least two, and along the third direction, the first heat exchange tube group (10) is provided on at least one side of the second heat exchange tube group (20); or, The number of the second heat exchange tube group (20) is at least two, and along the third direction, the second heat exchange tube group (20) is provided on at least one side of the first heat exchange tube group (10); or, The number of the first heat exchange tube group (10) and the number of the second heat exchange tube group (20) are both multiple, and the multiple first heat exchange tube groups (10) and second heat exchange tube groups (20) are arranged alternately along the third direction.

9. The heat exchanger according to claim 1, characterized in that, Along the third direction, one end of the heat exchanger (100) is defined as a gas inlet / outlet, and the other end is defined as a liquid inlet / outlet; The heat exchanger (100) includes the first heat exchange tube group (10) and the second heat exchange tube group (20); from the gas inlet / outlet end toward the liquid inlet / outlet end, along the extension direction of the heat exchanger (100), in any two adjacent second manifolds (12) and the third manifold (21) or in any two adjacent fourth manifolds (22) and the first manifold (11), the inner diameter of the one closer to the gas inlet / outlet end is larger than the inner diameter of the other.

10. A heat exchange system, characterized in that, The heat exchanger (100) includes any one of claims 1 to 9.

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