Quill heat sink structure and thermal management system

Abstract

The application relates to a sleeve heat dissipation structure and a heat management system. The sleeve heat dissipation structure comprises a plurality of sleeve modules. Each sleeve module comprises an inner tube and an outer tube. The inner tube is provided with a first flow channel for circulating a first medium. The outer tube is sleeved on the outer side of the inner tube. A second flow channel for circulating a second medium is arranged between the outer tube and the inner tube. The second flow channel is arranged on the outer circumferential side of the first flow channel, so that the first medium and the second medium can exchange heat through the tube wall of the inner tube. Adjacent sleeve modules are fixedly connected through the outer tube to form a sleeve heat dissipation structure in which the plurality of sleeve modules are arranged side by side. The sleeve heat dissipation structure and the heat management system provided by the application solve the problem that the heat exchange elements in the existing integrated heat exchanger are prone to generating huge thermal stress due to uneven thermal expansion and cold contraction, which may further cause welding seam cracking or plate deformation.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and in particular to a sleeve heat dissipation structure and thermal management system. Background Technology

[0002] In traditional integrated heat exchangers, the heat exchange area between the hot and cold media is usually increased to improve heat dissipation. As a result, the volume of the integrated heat exchanger also increases. However, when the temperature difference between the two media (hot and cold media) is very large or the temperature changes drastically, the heat exchange elements in the integrated heat exchanger are prone to generating huge thermal stress due to uneven thermal expansion and contraction, which may lead to weld cracking or plate deformation. Utility Model Content

[0003] Therefore, it is necessary to provide a sleeve heat dissipation structure and thermal management system to solve the problem that the heat exchange elements in the existing integrated heat exchangers are prone to generating huge thermal stress due to uneven thermal expansion and contraction, which may lead to weld cracking or plate deformation.

[0004] The sleeve heat dissipation structure provided in this application includes multiple sleeve modules. Each sleeve module includes an inner tube and an outer tube. The inner tube is provided with a first flow channel for the flow of a first medium. The outer tube is sleeved on the outside of the inner tube. A second flow channel for the flow of a second medium is provided between the outer tube and the inner tube. The second flow channel surrounds the outer periphery of the first flow channel so that the first medium and the second medium can exchange heat through the tube wall of the inner tube. Adjacent sleeve modules are fixedly connected through the outer tube to form a sleeve heat dissipation structure in which multiple sleeve modules are arranged in parallel.

[0005] In one embodiment, both the inner tube and the outer tube are flat tube structures, and adjacent outer tubes are arranged along their own width direction, with the width of the outer tube being greater than its thickness.

[0006] In one embodiment, the adjacent outer tubes are integrally formed.

[0007] In one embodiment, adjacent outer tubes are welded together.

[0008] In one embodiment, the heat dissipation structure of the sleeve also includes a connecting strip that extends along the length of the outer tube, and adjacent outer tubes are welded together by the connecting strip.

[0009] In one embodiment, the connecting strip is provided with a plurality of stress relief holes that extend through the outer tube along the thickness direction, and the plurality of stress relief holes are spaced apart along the length direction of the connecting strip.

[0010] In one embodiment, adjacent outer tubes are detachably connected.

[0011] In one embodiment, the sleeve heat dissipation structure further includes a connecting flange and fasteners. The connecting flange is fixedly disposed at one end of each outer tube near the adjacent outer tube. The connecting flange is provided with a fixing hole. The fasteners can be sequentially inserted into the fixing holes of adjacent connecting flanges so that the adjacent outer tubes can be detachably connected by the connecting flanges and fasteners; or, the adjacent outer tubes are snap-fitted together.

[0012] In one embodiment, the sleeve module further includes a limiting protrusion, which includes a first protrusion disposed on both sides of the inner tube along a first direction, and a second protrusion disposed on both sides of the inner tube along a second direction. One end of the first protrusion is fixedly connected to one of the inner wall of the outer tube and the outer wall of the inner tube, and the other end abuts against the other of the inner wall of the outer tube and the outer wall of the inner tube. One end of the second protrusion is fixedly connected to one of the inner wall of the outer tube and the outer wall of the inner tube, and the other end is spaced apart from the other of the inner wall of the outer tube and the outer wall of the inner tube. The first direction and the second direction are arranged at an angle.

[0013] This application also provides a thermal management system, which includes the sleeve heat dissipation structure described in any of the above embodiments.

[0014] Compared with existing technologies, the sleeve heat dissipation structure and thermal management system provided in this application specifically features a coaxial nested structure between the inner and outer tubes. When the high-temperature medium flows through the inner tube, its heat is transferred through the tube wall to the low-temperature medium flowing between the inner and outer tubes. When multiple sleeve modules are arranged laterally, the outer tubes of each sleeve module are connected and fixed via end connectors. When temperature changes cause a single sleeve module to expand, small displacements can occur between adjacent sleeve modules, preventing stress accumulation in the overall structure. When the coolant flows through the inner tube, ambient air flows through the gaps in the outer tubes, carrying away heat. Simultaneously, the independent deformation of each sleeve module reduces the risk of weld cracking.

[0015] Through the above technical solutions, this application effectively alleviates material deformation stress caused by temperature differences and avoids cracking at connection points. The modular structure allows for flexible adjustment of the number of heat exchange units according to heat dissipation requirements, improving system reliability while ensuring heat dissipation efficiency. The split design allows for independent selection of inner and outer tubes made of different materials; for example, the inner tube can be made of corrosion-resistant material while the outer tube is made of lightweight material, enhancing structural adaptability. Attached Figure Description

[0016] 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.

[0017] Figure 1A three-dimensional structural diagram of a sleeve heat dissipation structure according to an embodiment of this application;

[0018] Figure 2 A partial structural schematic diagram of a sleeve heat dissipation structure according to an embodiment of this application;

[0019] Figure 3 A side view of the sleeve heat dissipation structure provided in Embodiment 1 of this application;

[0020] Figure 4 A side view of the sleeve heat dissipation structure of Embodiment 2 provided in this application;

[0021] Figure 5 This is a side view of the heat dissipation structure of Embodiment 3 provided in this application.

[0022] Reference numerals: 100, sleeve module; 110, inner tube; 111, first flow channel; 1111, partition strip; 1112, first microchannel; 112, notch groove; 120, outer tube; 121, second flow channel; 1211, second microchannel; 130, limiting protrusion; 131, first protrusion; 132, second protrusion; 200, connecting strip; 300, connecting flange; 400, fastener. Detailed Implementation

[0023] Please see Figures 1-5This application provides a sleeve heat dissipation structure and a thermal management system. The sleeve heat dissipation structure includes multiple sleeve modules 100, wherein each sleeve module 100 refers to an independent heat exchange unit, which can be implemented by combining split metal pipe fittings. Each module has an independent inner and outer pipe structure. Specifically, each sleeve module 100 includes an inner pipe 110 and an outer pipe 120. The inner pipe 110 refers to a channel for carrying high-temperature medium, which can be implemented by using a thin-walled stainless steel pipe with a wall thickness of 0.5mm-1.2mm. The inner pipe 110 is provided with a first flow channel 111 for the flow of a first medium. Furthermore, multiple baffle strips 1111 can be provided in the first flow channel 111 to divide the first flow channel 111 into multiple parallel first microchannels 1112. The outer tube 120 refers to the supporting structure that wraps around the inner tube 110. It can be made of extruded aluminum alloy profiles, and its cross-sectional shape can be rectangular or elliptical. The outer tube 120 is fitted over the outer side of the inner tube 110. A second flow channel 121 for the flow of a second medium is provided between the outer tube 120 and the inner tube 110. The second flow channel 121 surrounds the outer periphery of the first flow channel 111, allowing the first and second media to exchange heat through the tube wall of the inner tube 110. It should be noted that at least the sidewall of the inner tube 110 is a heat-conducting component, including but not limited to copper alloy, aluminum alloy, and stainless steel. Furthermore, adjacent sleeve modules 100 are fixedly connected via the outer tube 120 to form a sleeve heat dissipation structure with multiple sleeve modules 100 arranged side-by-side. The fixed connection refers to the mechanical connection method between the sleeve modules 100, which can be achieved through welding, bolting, or other methods. The connection point is located at the end of the outer tube 120. It should be noted that the first medium and the second medium can be the same medium or different types of medium. The main difference between the two is the temperature, in order to achieve heat transfer.

[0024] Specifically, the inner tube 110 and the outer tube 120 form a coaxial nested structure. When the high-temperature medium flows through the inner tube 110, its heat is transferred through the tube wall to the low-temperature medium flowing between the outer tube 120 and the inner tube 110. When multiple sleeve modules 100 are arranged laterally, the outer tube 120 of each sleeve module 100 is connected and fixed by end connectors. When a temperature change causes a single sleeve module 100 to expand, a small displacement can occur between adjacent sleeve modules 100, avoiding stress accumulation in the overall structure. When the coolant flows through the inner tube 110, ambient air flows through the gaps in the outer tube 120, carrying away heat. At the same time, the independent deformation of each sleeve module 100 reduces the risk of weld cracking.

[0025] Through the above technical solutions, this application effectively alleviates material deformation stress caused by temperature differences and avoids cracking at connection points. The modular structure allows for flexible adjustment of the number of heat exchange units according to heat dissipation requirements, improving system reliability while ensuring heat dissipation efficiency. The split design allows for independent selection of inner and outer tubes (inner tube 110 and outer tube 120) made of different materials. For example, the inner tube 110 can be made of corrosion-resistant material while the outer tube 120 can be made of lightweight material, enhancing structural adaptability.

[0026] In one embodiment, the sleeve module 100 further includes a limiting protrusion 130. One end of the limiting protrusion 130 is fixedly connected to one of the inner wall of the outer tube 120 and the outer wall of the inner tube 110, and the other end is limited and engaged with the other of the inner wall of the outer tube 120 and the outer wall of the inner tube 110. Specifically, the limiting protrusion 130 extends along the length direction of the outer tube 120 (the flow direction of the second flow channel 121) and is fixedly connected (welded or integrally formed) to the inner wall of the outer tube 120. The limiting protrusion 130 and the outer wall of the inner tube 110 are limited and engaged to fix the installation position of the inner tube 110 within the outer tube 120. Alternatively, the limiting protrusion 130 is fixedly connected (welded or integrally formed) to the outer wall of the inner tube 110, and the limiting protrusion 130 and the inner wall of the outer tube 120 are limited and engaged to fix the installation position of the inner tube 110 within the outer tube 120.

[0027] Furthermore, in one embodiment, as Figure 2 As shown, the limiting protrusion 130 includes a first protrusion 131 disposed on both sides of the inner tube 110 along a first direction (e.g., the thickness direction of the inner tube 110), and a second protrusion 132 disposed on both sides of the inner tube 110 along a second direction (e.g., the width direction of the inner tube 110). One end of the first protrusion 131 is fixedly connected to one of the inner wall of the outer tube 120 and the outer wall of the inner tube 110, and the other end abuts against the other of the inner wall of the outer tube 120 and the outer wall of the inner tube 110. The first protrusion 131 divides the second flow channel 121 into a plurality of parallel second microchannels 1211. One end of the second protrusion 132 is fixedly connected to one of the inner wall of the outer tube 120 and the outer wall of the inner tube 110, and the other end is spaced apart from the other of the inner wall of the outer tube 120 and the outer wall of the inner tube 110. In other words, some of the limiting protrusions 130 directly limit the movement by abutting, while the other part of the limiting protrusions 130 indirectly limit the movement by being spaced apart. The first direction and the second direction are set at an angle. Specifically, the angle between the first direction and the second direction can be 30°, 45°, 60° or 90°, etc. Preferably, the first direction and the second direction are set perpendicularly (for example, the first direction is the thickness direction of the inner tube 110 and the second direction is the width direction of the inner tube 110; or when the inner tube 110 is a circular tube, the first direction and the second direction are different radial directions of the inner tube 110).

[0028] The limiting protrusion 130 is a structural component installed between the inner tube 110 and the outer tube 120 to constrain relative displacement. It can be implemented by welding or integral molding, and its function is to limit the misalignment of the inner tube 110 and the outer tube 120 during thermal expansion and contraction. Fixed connection refers to the non-removable connection of the protrusion to the outer tube 120 or the inner tube 110, which can be achieved through welding or casting processes to ensure structural stability. Abutment refers to the direct contact between the end of the protrusion and the surface of the outer tube 120 or the inner tube 110, which can be a planar or arc-shaped contact, used to transfer supporting force. Spacing refers to maintaining a gap between the end of the protrusion and the surface of the outer tube 120 or the inner tube 110, which can be achieved by setting the length of the protrusion to be smaller than the spatial dimension in the corresponding direction to accommodate thermal deformation.

[0029] Specifically, the first protrusion 131 is distributed along the thickness direction of the outer tube 120, with one end welded to the inner wall of the outer tube 120 and the other end contacting the outer wall of the inner tube 110, forming a rigid support and thus restricting the displacement of the inner tube 110 in the thickness direction. The second protrusion 132 is distributed along the width direction of the outer tube 120, with one end welded to the outer wall of the inner tube 110 and the other end maintaining a gap with the inner wall of the outer tube 120, allowing the inner tube 110 to expand and contract in the width direction due to temperature changes. When the temperature difference between the first medium and the second medium causes thermal expansion of the inner tube 110 and the outer tube 120, the first protrusion 131 suppresses lateral deformation through rigid contact, while the second protrusion 132 releases longitudinal stress through the gap design, thereby balancing the thermal stress distribution in different directions. Furthermore, the arrangement of the first protrusion 131 and the second protrusion 132 can also act as a reinforcing rib, forming a strong support between the inner tube 110 and the outer tube 120, thereby improving the overall connection strength of the inner tube 110 and the outer tube 120.

[0030] In one embodiment, such as Figure 2 As shown, the inner tube 110 protrudes from the end face of the outer tube 120, and the end of the inner tube 110 is provided with a notch 112 so that the inner tube 110 can be integrated into the thermal management system.

[0031] In one embodiment, both the inner tube 110 and the outer tube 120 are flat tube structures. A flat tube structure refers to a tubular structure with a flat cross-section, which can be achieved using extrusion molding or welding processes. Its width direction is orthogonal to its thickness direction. Width-direction arrangement means that multiple outer tubes 120 are arranged side-by-side with the width direction of the flat tube as a reference. This can be achieved by directly forming a multi-row structure during mold forming. This arrangement increases the contact area between adjacent outer tubes 120. Furthermore, the length direction of the inner tube 110 is the same as the length direction of the outer tube 120, the width direction of the inner tube 110 is the same as the width direction of the outer tube 120, and the thickness direction of the inner tube 110 is the same as the thickness direction of the outer tube 120. The flow direction of the first flow channel 111 is defined as the length direction of the inner tube 110, and the flow direction of the second flow channel 121 is defined as the length direction of the outer tube 120. Adjacent outer tubes 120 are arranged along their own width direction, and the width of the outer tube 120 is greater than the thickness of the outer tube 120. This can be achieved by adjusting the mold forming parameters. This dimensional relationship can reduce the amount of thermal expansion deformation in the thickness direction.

[0032] Specifically, when both the inner tube 110 and the outer tube 120 adopt a flat tube structure, the first flow channel 111 and the second flow channel 121 form a flat flow space, allowing the medium to form a thin layer distribution during flow. When adjacent outer tubes 120 are arranged along the width direction, the wide surfaces of multiple outer tubes 120 are parallel to each other, forming a compact side-by-side layout. The design that the width of the outer tube 120 is greater than its thickness allows the thermal expansion of the outer tube 120 in the width direction to be dispersed through the flat structure during heat exchange, while the stress generated by thermal expansion in the thickness direction is significantly reduced due to the smaller size.

[0033] Compared with existing technologies, this solution increases the effective heat exchange area within the same volume by forming a surface contact arrangement using a flat tube structure. Simultaneously, it utilizes the dimensional advantage of the flat tube's width direction to disperse thermal expansion deformation. Furthermore, the reduction in the outer tube's 120mm thickness direction keeps the thermal expansion in this direction at a low level, avoiding stress concentration problems caused by differences in thermal expansion in different directions.

[0034] However, it is not limited to this. In other embodiments, the inner tube 110 and the outer tube 120 can also be other shapes such as round tubes or elliptical tubes, which will not be listed here.

[0035] Example 1

[0036] In this embodiment, as Figure 3 As shown, the adjacent outer tubes 120 are integrally formed. This integrally formed structure means that the adjacent outer tubes 120 are formed by continuous processing from the same material, specifically through casting or extrusion molding processes, resulting in no seams or connecting interfaces between the adjacent outer tubes 120.

[0037] Specifically, in the sleeve-type heat dissipation structure, multiple outer tubes 120 are directly formed into a continuous integral structure through a one-piece molding process. Since there are no independent connecting parts or seams between the outer tubes 120, when the medium flows through the second flow channel 121 between the outer tube 120 and the inner tube 110, the deformation direction of the outer tubes 120 due to thermal expansion or cooling contraction tends to be consistent, thereby reducing local stress concentration caused by the independent connection of adjacent outer tubes 120. For example, during the casting process, the outer tubes 120 can be formed into multiple parallel tubes in one piece using a mold, with the connection area between the tubes directly filled by the material itself, forming a gapless continuous structure. Compared with existing technologies, in this solution, the one-piece molded outer tubes 120 eliminate independent connection interfaces, enhancing the synchronicity of thermal deformation of adjacent outer tubes 120 and avoiding excessive local stress.

[0038] Example 2

[0039] In this embodiment, as Figure 4 As shown, adjacent outer tubes 120 are welded together. Welding refers to connecting adjacent outer tubes 120 into a single unit by melting the material at high temperature; this can be achieved using laser welding, arc welding, or brazing. Welding ensures the connection strength between adjacent outer tubes 120 and reduces localized stress concentration caused by assembly gaps, thereby mitigating deformation caused by thermal expansion and contraction.

[0040] Specifically, the welding and fixing of adjacent outer tubes 120 is achieved by applying a welding process to the contact surface or connection point of the outer tubes 120. For example, welding can be performed along the length of the outer tubes 120 in the form of continuous welds or intermittent spot welding, so that adjacent outer tubes 120 can maintain a stable connection even in high or low temperature environments. After welding, the outer tubes 120 form a rigid whole, avoiding relative displacement between the outer tubes 120 due to temperature changes, thereby reducing the risk of weld cracking. In addition, welding and fixing can also ensure the sealing of the second flow channel 121 and prevent leakage of the second medium.

[0041] Compared with existing technologies, welding fixation eliminates connection gaps, enabling adjacent outer tubes 120 to form a uniformly stressed integral structure, significantly reducing local stress, while improving the overall stability of the heat dissipation structure and adapting to working conditions with rapid temperature changes.

[0042] Furthermore, in one embodiment, the sleeve heat dissipation structure further includes a connecting strip 200, which extends along the length of the outer tube 120, and adjacent outer tubes 120 are welded together using the connecting strip 200. The connecting strip 200 refers to a strip-shaped structure extending axially along the outer tube 120, which can be made by bending metal strips or plates. Its width can range from 1 / 5 to 1 / 3 of the width of the outer tube 120, for example, a strip with a width of 5mm to 15mm, used to provide a welding base for adjacent outer tubes 120 and to distribute welding stress. Welding fixation refers to combining the connecting strip 200 with the surface of the outer tube 120 using molten metal, which can be achieved using laser welding or arc welding processes. The welding trajectory can be a continuous straight line or intermittently distributed weld points, for example, connected by intermittent welds with a spacing of 10mm to 30mm.

[0043] Specifically, the connecting strip 200 is arranged on the side wall surface of the outer tube 120 along its length, with its extension direction parallel to the axis of the outer tube 120. During welding, the two side edges of the connecting strip 200 contact the side walls of two adjacent outer tubes 120 respectively, and the connecting strip 200 and the outer tube 120 are metallurgically bonded through the welding process. For example, when the outer tube 120 has a flat tube structure, the connecting strip 200 can be connected to the end face in the width direction of the flat tube, and the end faces of two adjacent outer tubes 120 and the connecting strip 200 can be welded and fixed simultaneously through continuous welds.

[0044] Compared with existing technologies, this solution adds a connecting strip 200 as a transition structure, which disperses and transmits welding stress along the length of the connecting strip 200. For example, when the outer tube 120 expands due to temperature difference, the connecting strip 200 can absorb part of the deformation, avoiding stress concentration on a single weld line.

[0045] Furthermore, in one embodiment, the connecting strip 200 is provided with a plurality of stress relief holes (not shown) extending through the outer tube 120 along its thickness direction, and the plurality of stress relief holes are spaced apart along the length direction of the connecting strip 200. The stress relief holes are through holes formed along the thickness direction of the connecting strip 200, which can be implemented by stamping or drilling processes, and are used to disperse stress concentration generated in the connecting strip 200 during thermal expansion and contraction.

[0046] Specifically, when the connecting strip 200 extends along the length of the outer tube 120 and is welded and fixed to the adjacent outer tube 120, the presence of stress relief holes allows the connecting strip 200 to absorb some of the stress through the deformation of the material around the holes when subjected to thermal stress. When the outer tube 120 expands or contracts due to temperature changes, the local area around the stress relief holes can undergo elastic deformation, thereby reducing the overall rigidity of the connecting strip 200 and preventing excessive stress concentration in the welding area.

[0047] Example 3

[0048] In this embodiment, as Figure 5 As shown, adjacent outer tubes 120 are detachably connected. Specifically, adjacent outer tubes 120 form a modular structure through detachable connection. When temperature changes cause changes in the size of the outer tubes 120, the connection points can release the stress caused by thermal expansion and contraction. For example, in a high-temperature environment, the thermal expansion of the outer tubes 120 causes slight displacement between adjacent modules. At this time, the gap or elastic structure of the detachable connection can absorb the deformation, avoiding excessive local stress caused by rigid connection.

[0049] Furthermore, in one embodiment, the sleeve heat dissipation structure further includes a connecting flange 300 and a fastener 400. The connecting flange 300 is fixedly disposed (specifically, it can be welded or integrally formed) at one end of each outer tube 120 near the adjacent outer tube 120, and the connecting flange 300 is provided with a fixing hole (not shown). The fastener 400 can be sequentially inserted into the fixing holes of adjacent connecting flanges 300, so that adjacent outer tubes 120 are detachably connected through the connecting flange 300 and the fastener 400. The connecting flange 300 refers to a plate-like structure fixedly connected to the end of the outer tube 120, specifically it can be welded or integrally formed with the outer tube 120 to form a whole. Its function is to provide an installation base for the fastener 400 to achieve a detachable connection between modules. The fastener 400 refers to a component that achieves a mechanical connection, specifically it can be a bolt and nut assembly, forming a detachable connection through the fixing hole. Its function is to control the assembly gap between the sleeve modules 100 by adjusting the tightness.

[0050] Specifically, a connecting flange 300 with a fixing hole is provided at the end of the outer tube 120. Bolts are passed through the fixing holes of adjacent flanges in sequence and a preload is applied to form a connection structure with adjustable tightness. When thermal expansion and contraction occur, the contact surfaces between the connecting flanges 300 can produce slight sliding, releasing the deformation stress caused by the temperature difference.

[0051] Specifically, in one embodiment, the plate surface of the connecting flange 300 is perpendicular to the width direction of the outer tube 120, and adjacent connecting flanges 300 are stacked along the width direction of the outer tube 120. Of course, in other embodiments, the plate surface of the connecting flange 300 may also be parallel to the width direction of the outer tube 120, and adjacent connecting flanges 300 are stacked along the thickness direction of the outer tube 120.

[0052] In another embodiment, adjacent outer tubes 120 can also be snap-fitted together. For example, one side of the outer tube 120 has a slot (not shown) on its sidewall, and the other side of the outer tube 120 has a protrusion (not shown) on its sidewall. The protrusion and the slot are snapped together by friction.

[0053] This application also provides a thermal management system, which includes the sleeve heat dissipation structure described in any of the above embodiments.

[0054] 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.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the 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 protection scope of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

Claims

1. A sleeve-type heat dissipation structure, characterized in that, The device includes multiple sleeve modules (100), each sleeve module (100) including an inner tube (110) and an outer tube (120). The inner tube (110) is provided with a first flow channel (111) for the flow of a first medium. The outer tube (120) is sleeved on the outside of the inner tube (110). A second flow channel (121) for the flow of a second medium is provided between the outer tube (120) and the inner tube (110). The second flow channel (121) surrounds the outer periphery of the first flow channel (111) so that the first medium and the second medium can exchange heat through the tube wall of the inner tube (110). Adjacent sleeve modules (100) are fixedly connected by the outer tube (120) to form a sleeve heat dissipation structure in which multiple sleeve modules (100) are arranged in parallel.

2. The sleeve heat dissipation structure according to claim 1, characterized in that, Both the inner tube (110) and the outer tube (120) are flat tube structures. Adjacent outer tubes (120) are arranged along their own width direction, and the width of the outer tube (120) is greater than the thickness of the outer tube (120).

3. The sleeve heat dissipation structure according to claim 1 or claim 2, characterized in that, The adjacent outer tubes (120) are integrally formed.

4. The sleeve heat dissipation structure according to claim 1 or claim 2, characterized in that, The adjacent outer tubes (120) are welded and fixed.

5. The sleeve heat dissipation structure according to claim 4, characterized in that, It also includes a connecting strip (200) that extends along the length of the outer tube (120) and is welded to adjacent outer tubes (120).

6. The sleeve heat dissipation structure according to claim 5, characterized in that, The connecting strip (200) is provided with a plurality of stress relief holes that are provided through the outer tube (120) along the thickness direction, and the plurality of stress relief holes are spaced apart along the length direction of the connecting strip (200).

7. The sleeve heat dissipation structure according to claim 1 or claim 2, characterized in that, The adjacent outer tubes (120) are detachably connected.

8. The sleeve heat dissipation structure according to claim 7, characterized in that, It also includes a connecting flange (300) and a fastener (400). The connecting flange (300) is fixedly disposed at one end of each outer tube (120) near the adjacent outer tube (120). The connecting flange (300) is provided with a fixing hole. The fastener (400) can be sequentially inserted into the fixing holes of the adjacent connecting flanges (300) so that the adjacent outer tubes (120) can be detachably connected through the connecting flange (300) and the fastener (400). Alternatively, the adjacent outer tubes (120) can be snapped together for fixation.

9. The sleeve heat dissipation structure according to claim 1, characterized in that, The sleeve module (100) further includes a limiting protrusion (130), the limiting protrusion (130) includes a first protrusion (131) disposed on both sides of the inner tube (110) along a first direction, and a second protrusion (132) disposed on both sides of the inner tube (110) along a second direction. One end of the first protrusion (131) is fixedly connected to one of the inner wall of the outer tube (120) and the outer wall of the inner tube (110), and the other end abuts against the other of the inner wall of the outer tube (120) and the outer wall of the inner tube (110). One end of the second protrusion (132) is fixedly connected to one of the inner wall of the outer tube (120) and the outer wall of the inner tube (110), and the other end is spaced apart from the other of the inner wall of the outer tube (120) and the outer wall of the inner tube (110). The first direction and the second direction are arranged at an angle.

10. A thermal management system, characterized in that, Includes the sleeve heat dissipation structure as described in any one of claims 1-9.

Images