Current collecting assembly and heat exchanger

Abstract

The application provides a current collecting assembly and a heat exchanger, comprising: a first pipe body; a second pipe body, which is sleeved outside the first pipe body and forms a plurality of connecting cavities between the first pipe body and the second pipe body, the plurality of connecting cavities are spaced apart and independently arranged along the axial direction of the first pipe body, so that the plurality of heat exchange pipes can be connected to the first pipe body and / or the plurality of connecting cavities. In this way, the connection forms are various and rich, the assembly process is simple, the assembly can be carried out according to the actual application scene, the assembly mode is flexible, and the assembly mode can be suitable for various working condition requirements.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, specifically to a manifold assembly and a heat exchanger. Background Technology

[0002] A heat exchanger achieves heat exchange by having refrigerant flow through a heat exchange channel formed by connecting manifolds and flat tubes. Heat exchange occurs through heat dissipation via contact between the heat exchange tubes and air, as well as heat dissipation assisted by fins. The heat exchanger has heat exchange tubes and manifolds. Two manifolds are arranged in parallel, and multiple heat exchange tubes are arranged in parallel. Each heat exchange tube is connected at both ends to two manifolds, allowing the medium in the manifolds to flow to multiple heat exchange tubes for heat exchange. In existing technologies, the manifold structure is typically a single tubular shape, only allowing communication with the heat exchange tubes. This connection method is relatively simple and cannot be adapted to various operating conditions. Summary of the Invention

[0003] In view of this, this application provides a flow collector and heat exchanger with various connection forms and flexible assembly methods, which can be applied to various working conditions.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A manifold assembly for connecting multiple heat exchange tubes, comprising:

[0006] first tube body;

[0007] The second tube is sleeved outside the first tube and forms a plurality of connecting chambers between the first tube and the second tube. The plurality of connecting chambers are spaced apart and independently arranged along the axial direction of the first tube, so that the plurality of heat exchange tubes can be connected to the first tube and / or the plurality of connecting chambers.

[0008] Optionally, the inner wall of the second tube is provided with a plurality of first grooves, the plurality of first grooves being spaced apart along the axial direction of the second tube and forming a plurality of connecting chambers with the outer wall of the first tube.

[0009] Optionally, the outer wall of the second tube is provided with a plurality of second grooves, which are spaced apart along the axial direction of the second tube and alternately arranged with the plurality of first grooves.

[0010] Optionally, the plurality of connecting chambers are arranged in a ring shape and surround the outer periphery of the first tube.

[0011] Optionally, the first tube and / or the second tube are provided with a communication channel for communicating with the heat exchange tube.

[0012] A heat exchanger, comprising:

[0013] Multiple heat exchange tubes;

[0014] A flow collector assembly, connecting the plurality of heat exchange tubes, and configured as described in any of the preceding embodiments.

[0015] Optionally, the plurality of heat exchange tubes includes a plurality of first heat exchange tubes arranged in parallel and a plurality of second heat exchange tubes arranged in parallel, with a first position and a second position on the same connecting chamber respectively connecting the first heat exchange tubes and the second heat exchange tubes.

[0016] Optionally, the first position and the second position are staggered in the circumferential direction of the first tube body;

[0017] And / or, the first position and the second position are staggered in the axial direction of the first tube.

[0018] Optionally, it also includes a manifold, wherein one end of the plurality of heat exchange tubes is connected to a plurality of connecting chambers of the manifold assembly, and the other end is connected to the manifold.

[0019] The first tube of the current collection assembly is provided with a plurality of flow distribution holes, and the plurality of connecting chambers are connected to the first tube through the plurality of flow distribution holes.

[0020] Optionally, the manifold is also configured as the manifold assembly, and the two ends of the plurality of heat exchange tubes are respectively connected to the plurality of connecting chambers of the two manifold assemblies.

[0021] Optionally, the plurality of distribution holes are disposed on the side wall of the first tube body near the heat exchange tube.

[0022] Optionally, a baffle is provided inside the first tube, and a first inner cavity and a second inner cavity are formed inside the first tube in a radial arrangement.

[0023] Two heat exchangers are provided, and the plurality of heat exchange tubes include at least one first heat exchange tube and at least one second heat exchange tube. The two ends of the first heat exchange tube are respectively connected to the first inner cavity of the two heat exchangers, and the two ends of the second heat exchange tube are respectively connected to the second inner cavity of the two heat exchangers.

[0024] Optionally, the plurality of heat exchange tubes are arranged along the axial direction of the second tube body;

[0025] At least one second heat exchange tube is disposed between at least two adjacent first heat exchange tubes, and / or at least one first heat exchange tube is disposed between at least two adjacent second heat exchange tubes.

[0026] Optionally, in the plurality of connecting chambers, a portion of the connecting chambers are connected to the first inner cavity through a first through hole and are connected to the first heat exchange tube; another portion of the connecting chambers are connected to the second inner cavity through a second through hole and are connected to the second heat exchange tube.

[0027] Optionally, the first through hole and the second through hole are located on the two sides of the first tube body, near and far from the heat exchange tube, respectively, and are arranged alternately along the axial direction of the first tube body.

[0028] Optionally, at least one of the two current collection components has multiple connecting chambers that are connected to the first inner cavity through a third through hole and to the first heat exchange tube.

[0029] The outer periphery of the second inner cavity of the at least one flow collector assembly is provided with a fourth through hole penetrating the first tube and the second tube, and the fourth through hole connects the second inner cavity of the at least one flow collector assembly and the second heat exchange tube.

[0030] Optionally, the third through hole is located on the side of the first tube body away from the heat exchange tube, and the fourth through hole is located on the side of the first tube body close to the heat exchange tube.

[0031] Optionally, one end of each of the plurality of heat exchange tubes is connected one-to-one to a plurality of connecting chambers of the manifold assembly.

[0032] Optionally, the first heat exchange tube and the second heat exchange tube are arranged alternately.

[0033] In the heat exchanger or current collector assembly provided in this application, the second tube is sleeved on the outer periphery of the first tube and forms multiple connecting chambers between the first and second tubes. The heat exchange tubes connect the first tube and / or the multiple connecting chambers, thereby realizing the connection between the current collector assembly and the heat exchange tubes. The connection forms are diverse and rich, the assembly process is simple, and the assembly can be carried out according to the actual application scenario. The assembly method is flexible and can be applied to various working conditions. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0035] Figure 1 A perspective view of a current collection component shown in some embodiments;

[0036] Figure 2Cross-sectional view of a current collection component as shown in some embodiments;

[0037] Figure 3 An exploded view of the current collection component shown in some embodiments;

[0038] Figure 4 A cross-sectional view of the second tube body shown in some embodiments;

[0039] Figure 5 This is a partial perspective view of the heat exchanger shown in Embodiment 1 of the first implementation method;

[0040] Figure 6 This is a partial cross-sectional view of the heat exchanger shown in Embodiment 1 of the first implementation.

[0041] Figure 7 This is a partial perspective view of the heat exchanger shown in Embodiment 2 of the first implementation method;

[0042] Figure 8 This is a partial cross-sectional view of the heat exchanger shown in Embodiment 2 of the first implementation;

[0043] Figure 9 This is a partial perspective view of the heat exchanger shown in Embodiment 3 of the first embodiment;

[0044] Figure 10 This is a partial cross-sectional view of the heat exchanger shown in Embodiment 3 of the first implementation;

[0045] Figure 11 This is a partial perspective view of the heat exchanger shown in Embodiment 4 of the first embodiment;

[0046] Figure 12 This is a partial cross-sectional view of the heat exchanger shown in Embodiment 4 of the first embodiment;

[0047] Figure 13 A partial cross-sectional view of the heat exchanger shown in an embodiment of the second implementation;

[0048] Figure 14 A perspective view of the first tube body shown in an embodiment of the third implementation method;

[0049] Figure 15 This is a partial cross-sectional view of the heat exchanger shown in Embodiment 1 of the third implementation.

[0050] Figure 16 This is a partial cross-sectional view of the heat exchanger shown in Embodiment 2 of the third implementation.

[0051] In the picture:

[0052] 1. First tube body; 2. Second tube body; 3. Connecting chamber; 4. First heat exchange tube; 5. Second heat exchange tube; 6. Fins; 7. Inlet tube; 8. Outlet tube;

[0053] 11. Flow distribution hole; 12. Baffle plate; 13. First inner cavity; 14. Second inner cavity; 15. First through hole; 16. Second through hole; 17. Third through hole; 18. Fourth through hole;

[0054] 21. First groove; 22. Second groove. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0056] like Figures 1-16 As shown in the figure, this application embodiment provides a flow manifold assembly suitable for heat exchangers. The heat exchanger has multiple heat exchange tubes, and the flow manifold assembly is used to connect the multiple heat exchange tubes so that the medium is combined in the flow manifold assembly and then distributed to the multiple heat exchange tubes. Here, fins 6 can be provided between adjacent heat exchange tubes to improve the heat exchange efficiency of the heat exchange tubes.

[0057] In this plan, such as Figure 1-4 As shown, the current collection assembly includes a first tube 1 and a second tube 2. The first tube 1 is a conventional tube of constant diameter, and the second tube 2 is a tube with a diameter that varies along its extension direction. Specifically, the inner wall of the second tube 2 is provided with multiple first grooves 21, and the outer wall of the second tube 2 is provided with multiple second grooves 22. The multiple first grooves 21 and multiple second grooves 22 are arranged along the extension direction of the second tube 2, and the first grooves 21 and second grooves 22 are arranged alternately, that is, one first groove 21 is located between two adjacent second grooves 22, and one second groove 22 is located between two adjacent first grooves 21, so that the sidewall of the second tube 2 forms a corrugated shape. Here, both the first grooves 21 and the second grooves 22 are set as annular grooves and are arranged around the circumference of the second tube 2.

[0058] The second tube 2 is sleeved on the outer periphery of the first tube 1, forming a plurality of connecting chambers 3 between the first tube 1 and the second tube 2. Each connecting chamber 3 is formed by the first groove 21 on the second tube 2 and the outer wall of the first tube 1. Since the first groove 21 is set as an annular groove, the connecting chamber 3 is set as an annular cavity. The connecting chambers 3 surround the outer periphery of the first tube 1, and the plurality of connecting chambers 3 are arranged along the axial direction of the first tube 1. Due to the alternating arrangement of the first groove 21 and the second groove 22, two adjacent connecting chambers 3 are spaced apart.

[0059] Furthermore, the outer diameter of the first tube 1 is adapted to the inner diameter of the second tube 2, so that the inner wall of the second tube 2 is interference-fitted with the outer wall of the first tube 1. This allows for a seal between the first tube 1 and the second tube 2, ensuring that each adjacent connecting chamber 3 is independently configured and not interconnected. Alternatively, a sealing ring can be provided between the first tube 1 and the second tube 2, located between two adjacent first grooves 21, to seal the two adjacent connecting chambers 3.

[0060] During processing, the first tube 1 and the second tube 2 can be connected by expansion or by welding. Specifically, a solder layer is provided on the outer surface of the first tube 1 and the inner surface of the second tube 2, and the first tube 1 and the second tube 2 are welded together through the solder layer. Alternatively, a solder layer can also be provided on the outer surface of the second tube 2 for welding to the heat exchange tube. Of course, the first tube 1 and the second tube 2 can also be configured as a single piece, formed by injection molding.

[0061] This manifold assembly is provided with a connecting channel, which can be located on the first tube body 1, the second tube body 2, or both. This connecting channel is used to connect the heat exchange tubes to the manifold assembly. For example, the connecting channel can connect the heat exchange tubes to the internal chamber of the first tube body 1, or it can connect the heat exchange tubes to the connecting chamber 3. The connecting channel can be either open or perforated.

[0062] like Figure 5-16 As shown in the figure, this application provides a heat exchanger, including a manifold assembly and multiple heat exchange tubes. The manifold assembly is connected to the multiple heat exchange tubes, and the manifold assembly is the same as that in the above embodiment. The structure and application of the heat exchanger will be specifically described below based on the structural form of the manifold assembly (i.e., various configurations of the connecting channels).

[0063] In the first implementation, such as Figure 5-12As shown, the multiple heat exchange tubes include multiple first heat exchange tubes 4 and multiple second heat exchange tubes 5. The multiple first heat exchange tubes 4 are arranged in parallel to form a first heat exchange module, and the multiple second heat exchange tubes 5 are arranged in parallel to form a second heat exchange module. A current collector is connected between the multiple first heat exchange tubes 4 and the multiple second heat exchange tubes 5 to realize the connection between the first heat exchange module and the second heat exchange module. The multiple first heat exchange tubes 4 and the multiple second heat exchange tubes 5 can be arranged in parallel or at an angle, for example, the angle formed by the multiple first heat exchange sections and the multiple second heat exchange sections can be a straight angle, a right angle, or an acute angle.

[0064] In the manifold assembly, each connecting chamber 3 has a first opening and a second opening on its outer periphery. These openings penetrate the bottom of the first groove 21 in the second tube body 2 (equivalent to the first and second openings being located at the first and second positions of the connecting chamber 3, respectively), allowing the connecting chamber 3 to communicate with the outside of the second tube body 2 through either the first or second opening. The shapes of the first and second openings match the port shapes of the heat exchange tubes (first heat exchange tube 4 and second heat exchange tube 5). For example, the first heat exchange tube 4 and second heat exchange tube 5 are flat tubes, and the first and second openings are strip-shaped, extending circumferentially along the second tube body 2. The first and second openings are staggered circumferentially in the first tube body 1, meaning they are located at different angular positions. For instance, the angle formed by the first and second openings relative to the axis of the first tube body 1 is a straight angle, a right angle, or an acute angle. During assembly, a first heat exchange tube 4 and a second heat exchange tube 5 are respectively installed in the first opening and the second opening on the same connecting chamber 3, so that the first heat exchange tube 4 and the second heat exchange tube 5 are connected one-to-one through the connecting chamber 3. Specifically, the first heat exchange tube 4 is inserted into the first opening and the second heat exchange tube 5 is inserted into the second opening, and fixed by brazing in a brazing furnace.

[0065] like Figure 11-12 As shown, in this particular design, the first opening and the second opening are staggered along the axial direction of the first tube 1, meaning they are located at different axial positions. For example, the angle formed by the first opening and the second opening relative to the axis of the first tube 1 is an acute angle, and the first opening and the second opening partially overlap in the axial projection of the first tube 1, so that the angle formed by the first heat exchange tube 4 and the second heat exchange tube 5 after assembly is smaller. When the widths of the first heat exchange tube 4 and the second heat exchange tube 5 are large, it is not necessary to simultaneously increase the outer diameter of the collector assembly. By partially overlapping the first heat exchange tube 4 and the second heat exchange tube 5 in the axial projection of the first tube 1, the heat exchange area loss ratio on the collector assembly can be reduced.

[0066] It should be noted that in existing heat exchangers, the connection between two parallel or angled heat exchange modules is usually achieved by bending, that is, bending multiple heat exchange tubes individually to achieve one-to-one connection between the multiple heat exchange tubes of the two heat exchange modules. In this solution, multiple first heat exchange tubes 4 and multiple second heat exchange tubes 5 are connected by a manifold assembly, which avoids the need to bend each heat exchange tube individually as in the existing technology. This simplifies the assembly process, makes the assembly method more flexible, and increases production efficiency. Moreover, depending on the actual application scenario, the first and second openings can be opened at corresponding angular and axial positions, making it highly adaptable.

[0067] In the second embodiment, the heat exchanger further includes a manifold, with one end of a plurality of heat exchange tubes connected to a plurality of connecting chambers of the manifold assembly, and the other end connected to the manifold. Furthermore, the first tube body 1 of the manifold assembly is provided with a plurality of distribution holes 11, which are arranged axially along the first tube body 1. The plurality of connecting chambers 3 are connected to the internal chambers of the first tube body 1 through the plurality of distribution holes 11. Thus, by providing multiple distribution holes, the internal chambers of the first tube body of the manifold assembly can be connected to the manifold, allowing the refrigerant flowing within the heat exchanger to sequentially flow through the manifold, the plurality of heat exchange tubes, and the manifold assembly.

[0068] Specifically, the number of heat exchange tubes, connecting chambers 3 and distribution holes 11 are matched, and one end of multiple heat exchange tubes is connected one-to-one to multiple connecting chambers 3 of the manifold assembly, so that the refrigerant is evenly distributed to the internal chamber of the first tube body 1 through the distribution holes.

[0069] The manifold can also be configured as the aforementioned manifold assembly. The structure of the manifold is consistent with that of the manifold assembly, both including a first tube body, a second tube body, and a connecting chamber 3. That is, the heat exchanger has two manifold assemblies. The following is a detailed description of this scheme.

[0070] like Figure 13 As shown, the multiple heat exchange tubes include multiple first heat exchange tubes 4, which are arranged in parallel to form a first heat exchange module. There are two flow collectors, which are located on both sides of the first heat exchange module. The multiple first heat exchange tubes 4 are connected between the two flow collectors to realize the connection between the two flow collectors.

[0071] In both manifolds, at least one manifold has a first tube 1 with multiple flow distribution holes 11. These holes 11 are arranged axially along the first tube 1 and communicate one-to-one with the connecting chambers 3. Specifically, the connecting chambers 3 are connected one-to-one with the internal chambers of the first tube 1 through the multiple flow distribution holes 11. The diameters of the multiple flow distribution holes 11 are different, allowing adjustment of the flow rate between the internal chambers of the first tube 1 and the connecting chambers 3 by designing the diameters of the holes 11. Each connecting chamber 3 in both manifolds has a third opening on its outer periphery. This third opening penetrates the bottom of the first groove 21 in the second tube 2, allowing the connecting chamber 3 to communicate with the outside of the second tube 2 through the third opening. The shape of the third opening matches the shape of the port of the first heat exchange tube 4. For example, if the first heat exchange tube 4 is a flat tube, the third opening is strip-shaped and extends circumferentially along the second tube 2. During assembly, the third openings of the connecting chambers 3 on the two manifolds are respectively installed with the two ends of the same first heat exchange tube 4, so that the multiple connecting chambers 3 on one manifold are connected to the multiple connecting chambers 3 on the other manifold through multiple first heat exchange tubes 4 one-to-one. Specifically, the two ends of the first heat exchange tube 4 are respectively inserted into the third openings on the two manifolds and fixed by brazing in a brazing furnace. Both ends of the first tube body 1 of the two manifolds are sealed. The internal chamber of the first tube body 1 of one manifold is connected to the inlet pipe 7, and the internal chamber of the first tube body 1 of the other manifold is connected to the outlet pipe 8.

[0072] It should be noted that in existing heat exchangers, a dispersion tube is typically inserted inside the manifold, and the medium is dispersed to various parts of the manifold through dispersion holes on the dispersion tube. Since the heat exchange tubes are directly connected to the manifold, the conductive surface between the manifold and the heat exchange tubes is determined by the end dimensions of the heat exchange tubes, and the flow distribution of each heat exchange tube cannot be adjusted. In this solution, however, the multiple distribution holes 11 function as equivalent to the dispersion holes of the dispersion tube in the existing technology. Moreover, by designing the orifice size of the multiple distribution holes 11, the flow rate between each first heat exchange tube 4 and the internal chamber of the first tube body 1 can be adjusted, thereby allowing for control of the heat exchange performance according to actual operating conditions, making it more versatile.

[0073] In the third embodiment, a partition 12 is provided inside the first tube body 1. The partition 12 extends along the axial direction of the first tube body 1 and is respectively connected to the opposite inner walls of the first tube body 1, dividing the interior of the first tube body 1 into a first inner cavity 13 and a second inner cavity 14. The first inner cavity 13 and the second inner cavity 14 may be the same size or different sizes. For example, the partition 12 is set as a flat plate passing through the axis of the first tube body 1. Moreover, the multiple heat exchange tubes include at least one first heat exchange tube 4 and at least one second heat exchange tube 5. The number of first heat exchange tubes 4 and second heat exchange tubes 5 can be set to one, two, or more. The two ends of the first heat exchange tube 4 are respectively connected to the first inner cavity 13 of the two manifolds, and the two ends of the second heat exchange tube 5 are respectively connected to the second inner cavity 14 of the two manifolds. In this way, in the two manifolds, the two first inner cavities 13 are connected, and the two second inner cavities 14 are connected.

[0074] In this configuration, multiple heat exchange tubes are arranged axially along the second tube body 2, so that the first heat exchange tube 4 and the second heat exchange tube 5 are on the same arrangement plane. At least one second heat exchange tube 5 is arranged between at least two adjacent first heat exchange tubes 4, and at least one first heat exchange tube 4 is arranged between at least two adjacent second heat exchange tubes 5. For example, one, two, or more second heat exchange tubes 5 may be arranged between two adjacent first heat exchange tubes 4, and one, two, or more first heat exchange tubes 4 may be arranged between two adjacent second heat exchange tubes 5; that is, the number and arrangement of the first and second heat exchange tubes 4 and 5 are not limited. Preferably, the first heat exchange tubes 4 and the second heat exchange tubes 5 are arranged alternately, and this scheme will be described in detail below.

[0075] like Figure 14-16 As shown, the multiple heat exchange tubes include multiple first heat exchange tubes 4 and multiple second heat exchange tubes 5. The multiple first heat exchange tubes 4 constitute a first heat exchange module, and the multiple second heat exchange tubes 5 constitute a second heat exchange module. The multiple first heat exchange tubes 4 and multiple second heat exchange tubes 5 are arranged in parallel and alternately, that is, one second heat exchange tube 5 is placed between two adjacent first heat exchange tubes 4, and one first heat exchange tube 4 is placed between two adjacent first heat exchange tubes 4. At the same time, fins 6 are arranged between the first heat exchange tubes 4 and the second heat exchange tubes 5. When the first heat exchange module and the second heat exchange module are running simultaneously, the fins 6 can dissipate heat from the first heat exchange tubes 4 and the second heat exchange tubes 5 at the same time to improve heat exchange efficiency. When only one of the first heat exchange module and the second heat exchange module is running, taking the operation of only the first heat exchange module as an example, the first heat exchange tube 4 dissipates heat through the two fins 6 on both sides, that is, one first heat exchange tube 4 has two fins 6 exclusively, which has better heat exchange efficiency and is beneficial to improving the efficiency of the air conditioning unit under partial load.

[0076] Two heat exchanger assemblies are provided, located on either side of the first and second heat exchange modules, respectively. Multiple first heat exchange tubes 4 and multiple second heat exchange tubes 5 are connected between the two heat exchanger assemblies to achieve communication between them. In each heat exchanger assembly, a partition 12 is provided inside the first tube body 1. The partition 12 extends axially along the first tube body 1 and is connected to opposite inner walls of the first tube body 1, dividing the interior of the first tube body 1 into a first inner cavity 13 and a second inner cavity 14. The first and second inner cavities 13 and 14 are parallel and arranged radially along the first tube body 1. During assembly, both ends of each first heat exchange tube 4 are connected to the first inner cavity 13 of the two heat exchanger assemblies, and both ends of each second heat exchange tube 5 are connected to the second inner cavity 14 of the two heat exchanger assemblies, thereby achieving heat diversion between the first and second heat exchange modules to facilitate control of their operating states.

[0077] It should be noted that existing heat exchangers typically use multiple manifolds to split the flow between two heat exchange modules. This means each end of a heat exchange module is connected to two manifolds, requiring four manifolds for both modules. This connection method is cumbersome and occupies a large amount of space. In contrast, this solution only requires two manifold components connected to the ends of the first and second heat exchange modules, respectively. This connection is convenient and saves space.

[0078] like Figure 15 As shown, in some specific embodiments, the outer periphery of the first tube 1 is provided with multiple first through holes 15 and multiple second through holes 16. In two adjacent connecting chambers 3, one is connected to the first inner cavity 13 through the first through hole 15, and the other is connected to the second inner cavity 14 through the second through hole 16. Moreover, in two adjacent connecting chambers 3, one is provided with a fourth opening on its outer periphery, and the other is provided with a fifth opening on its outer periphery. That is, the fourth and fifth openings penetrate the bottom of two adjacent first grooves 21 in the second tube 2, so that the connecting chamber 3 is connected to the outside of the second tube 2 through the fourth or fifth opening. The shape of the fourth and fifth openings matches the port shape of the first heat exchange tube 4 and the second heat exchange tube 5. For example, the first heat exchange tube 4 and the second heat exchange tube 5 are set as flat tubes, and the fourth and fifth openings are set as strips and extend along the circumference of the second tube 2.

[0079] During assembly, the fourth openings on the two manifolds are respectively installed at both ends of the same first heat exchange tube 4, so that the first inner cavity 13 on one manifold is connected to the first inner cavity 13 on the other manifold through multiple first heat exchange tubes 4. Similarly, the fifth openings on the two manifolds are respectively installed at both ends of the same second heat exchange tube 5, so that the second inner cavity 14 on one manifold is connected to the second inner cavity 14 on the other manifold through multiple second heat exchange tubes 5. Specifically, the two ends of the first heat exchange tube 4 are respectively inserted into the fourth openings on the two manifolds, and the two ends of the second heat exchange tube 5 are respectively inserted into the fifth openings on the two manifolds, and are fixed by brazing in a brazing furnace.

[0080] like Figure 16 As shown, in some other specific embodiments, the outer periphery of the first tube 1 is provided with multiple first through holes 15. The connecting chamber 3 is connected one-to-one with multiple first inner cavities 13 through the multiple first through holes 15. Each connecting chamber 3 is provided with a sixth opening (i.e., a third through hole 17) on its outer periphery. The sixth opening penetrates the bottom of the first groove 21 of the second tube 2, so that the connecting chamber 3 is connected to the outside of the second tube 2 through the sixth opening. The outer periphery of the second inner cavity 14 is provided with a seventh opening. The seventh opening is located between two adjacent connecting chambers 3 and penetrates the first tube 1 and the second tube 2 to form a fourth through hole 18. The shapes of the sixth and seventh openings match the port shapes of the first heat exchange tube 4 and the second heat exchange tube 5. For example, the first heat exchange tube 4 and the second heat exchange tube 5 are set as flat tubes, and the sixth and seventh openings are set as strips and extend along the circumference of the second tube 2.

[0081] During assembly, the sixth openings on the two manifolds are respectively installed at both ends of the same first heat exchange tube 4, so that the first inner cavity 13 on one manifold is connected to the first inner cavity 13 on the other manifold through multiple first heat exchange tubes 4. Similarly, the seventh openings on the two manifolds are respectively installed at both ends of the same second heat exchange tube 5, so that the second inner cavity 14 on one manifold is connected to the second inner cavity 14 on the other manifold through multiple second heat exchange tubes 5. Specifically, the two ends of the first heat exchange tube 4 are respectively inserted into the sixth openings on the two manifolds, and the two ends of the second heat exchange tube 5 are respectively inserted into the seventh openings on the two manifolds, and are fixed by brazing in a brazing furnace.

[0082] Understandably, when the distance between the first and second heat exchange tubes is small, if the first and second heat exchange tubes are connected to the fourth and fifth openings of the connecting chambers respectively, the connecting chambers will be too close together, making manufacturing difficult. However, in the above solution, by connecting the first heat exchange tube to the sixth opening of the connecting chamber, and the second heat exchange tube to the seventh opening on both the first and second tube bodies, the problem of the connecting chambers being too close together and the manufacturing difficulty can be avoided.

[0083] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0084] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0085] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0086] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A manifold assembly for connecting multiple heat exchange tubes, characterized in that, include: first tube body; The second tube is sleeved outside the first tube and forms a plurality of connecting chambers between the first tube and the second tube. The plurality of connecting chambers are spaced apart and independently arranged along the axial direction of the first tube, so that the plurality of heat exchange tubes can be connected to the first tube and / or the plurality of connecting chambers.

2. The current collection component according to claim 1, characterized in that, The inner wall of the second tube is provided with a plurality of first grooves, which are spaced apart along the axial direction of the second tube and together with the outer wall of the first tube to form a plurality of connecting chambers.

3. The current collection component according to claim 2, characterized in that, The outer wall of the second tube is provided with a plurality of second grooves, which are spaced apart along the axial direction of the second tube and alternate with the plurality of first grooves.

4. The current collection component according to claim 1, characterized in that, The plurality of connecting chambers are arranged in a ring shape and surround the outer periphery of the first tube.

5. The current collector component according to claim 1, characterized in that, The first tube and / or the second tube are provided with a communication channel for communicating with the heat exchange tube.

6. A heat exchanger, characterized in that, include: Multiple heat exchange tubes; A heat exchanger assembly, connecting the plurality of heat exchange tubes, and configured as a heat exchanger assembly as described in any one of claims 1-5.

7. The heat exchanger according to claim 6, characterized in that, The plurality of heat exchange tubes include a plurality of first heat exchange tubes arranged in parallel and a plurality of second heat exchange tubes arranged in parallel, with a first position and a second position on the same connecting chamber respectively connecting the first heat exchange tubes and the second heat exchange tubes.

8. The heat exchanger according to claim 7, characterized in that, The first position and the second position are staggered in the circumferential direction of the first tube body; And / or, the first position and the second position are staggered in the axial direction of the first tube.

9. The heat exchanger according to claim 6, characterized in that, It also includes a manifold, one end of which is connected to a plurality of connecting chambers of the manifold assembly, and the other end is connected to the manifold. The first tube of the current collection assembly is provided with a plurality of flow distribution holes, and the plurality of connecting chambers are connected to the first tube through the plurality of flow distribution holes.

10. The heat exchanger according to claim 9, characterized in that, The manifold is also configured as the manifold assembly, and the two ends of the plurality of heat exchange tubes are respectively connected to the plurality of connecting chambers of the two manifold assemblies.

11. The heat exchanger according to claim 9 or 10, characterized in that, The plurality of distribution holes are disposed on the side wall of the first tube body near the heat exchange tube.

12. The heat exchanger according to claim 6, characterized in that, A baffle is provided inside the first tube, and a first inner cavity and a second inner cavity are formed inside the first tube in a radial arrangement. Two heat exchangers are provided, and the plurality of heat exchange tubes include at least one first heat exchange tube and at least one second heat exchange tube. The two ends of the first heat exchange tube are respectively connected to the first inner cavity of the two heat exchangers, and the two ends of the second heat exchange tube are respectively connected to the second inner cavity of the two heat exchangers.

13. The heat exchanger according to claim 12, characterized in that, The plurality of heat exchange tubes are arranged along the axial direction of the second tube body; At least one second heat exchange tube is disposed between at least two adjacent first heat exchange tubes, and / or at least one first heat exchange tube is disposed between at least two adjacent second heat exchange tubes.

14. The heat exchanger according to claim 13, characterized in that, Of the plurality of connecting chambers, a portion of the connecting chambers are connected to the first inner cavity through a first through hole and are also connected to the first heat exchange tube; another portion of the connecting chambers are connected to the second inner cavity through a second through hole and are also connected to the second heat exchange tube.

15. The heat exchanger according to claim 14, characterized in that, The first through hole and the second through hole are located on the two sides of the first tube body, near and far from the heat exchange tube, respectively, and are arranged alternately along the axial direction of the first tube body.

16. The heat exchanger according to claim 13, characterized in that, At least one of the two current collection components, the plurality of connecting chambers of each current collection component are connected to the first inner cavity through a third through hole and are also connected to the first heat exchange tube. The outer periphery of the second inner cavity of the at least one flow collector assembly is provided with a fourth through hole penetrating the first tube and the second tube, and the fourth through hole connects the second inner cavity of the at least one flow collector assembly and the second heat exchange tube.

17. The heat exchanger according to claim 16, characterized in that, The third through hole is located on the side of the first tube body away from the heat exchange tube, and the fourth through hole is located on the side of the first tube body closer to the heat exchange tube.

18. The heat exchanger according to claim 9, characterized in that, One end of each of the plurality of heat exchange tubes is connected one-to-one to a plurality of connecting chambers of the manifold assembly.

19. The heat exchanger according to claim 13, characterized in that, The first heat exchange tube and the second heat exchange tube are arranged alternately.

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