Composite heat dissipation module and composite heat dissipation system

Abstract

The invention relates to a composite heat dissipation module and a composite heat dissipation system. The composite heat dissipation module and the composite heat dissipation system are mainly used for improving heat dissipation efficiency in electronic equipment. The composite heat dissipation module comprises a uniform temperature plate, heat dissipation fins and a water cooling structure. The water cooling structure is composed of an upper cover, a bottom cover, a fluid inlet, a fluid outlet and a fluid distribution structure, cooling liquid enters through the fluid inlet, is uniformly dispersed to the heat dissipation fin area through the fluid distribution structure, flows along the cooling flow channel to exchange heat with the heat dissipation fins, and is finally discharged from the fluid outlet. The cooling flow channel is designed to be a surrounding path, and it is ensured that cooling liquid evenly covers the heat dissipation fin area. The composite heat dissipation system comprises the composite heat dissipation module and an external circulation cooling system, the cooling liquid is driven by the water pump to circularly flow, and the heat dissipation effect is effectively improved. By optimizing fluid distribution, a cooling liquid flowing path and efficient circulation, the heat dissipation performance is remarkably improved, and the problem that in the prior art, the heat dissipation effect is insufficient is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of electronic equipment, and in particular to a composite heat dissipation module and a composite heat dissipation system. Background Art

[0002] With the rapid development of high-performance electronic devices, data centers, and new energy vehicles, the heat generated within these devices continues to increase, placing higher demands on the performance of cooling systems. To ensure stable system operation and extend component life, more efficient and reliable cooling solutions are essential.

[0003] At present, widely used heat dissipation technologies mainly include air cooling and liquid cooling. Among them, air cooling usually achieves natural convection or forced convection cooling through cooling fins and fans, and has the advantages of simple structure and low cost. However, in the face of high heat flux density environments, the cooling capacity is limited and it is difficult to meet the needs; liquid cooling removes heat through the circulation of coolant, and the overall heat exchange efficiency is high. However, in existing liquid cooling technologies, problems such as uneven distribution of coolant and unreasonable flow channel design are still common, resulting in insufficient local cooling and unsatisfactory overall heat dissipation effect. Therefore, it is necessary to conduct research and improvement on this type of liquid cooling technology; in order to solve the above problems, the concept of this application is proposed. Summary of the Invention

[0004] The object of the present invention is to provide a composite heat dissipation module to solve at least one of the above-mentioned defects in the prior art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a composite heat dissipation module, comprising: a temperature equalizing plate, a thermal contact portion for contacting a heating element is provided at the bottom thereof, and a plurality of heat dissipation fins are arranged on the top surface; a water-cooling structure, covering the top of the temperature equalizing plate, the water-cooling structure comprising: an upper cover and a bottom cover, the two being combined to form a cooling channel; a fluid inlet and a fluid outlet, respectively connected to the cooling channel; a fluid distribution structure, arranged in an area of the bottom cover adjacent to the fluid inlet, for guiding the coolant to the area where the heat dissipation fins are located; the coolant enters through the fluid inlet, is dispersed to the heat dissipation fin area through the fluid distribution structure, flows along the cooling channel and exchanges heat with the heat dissipation fins, and is discharged from the fluid outlet.

[0006] According to a further improvement of the present invention, the fluid distribution structure is located in the inner space of the bottom cover facing the heat sink fin area and is connected to the fluid inlet for directing the coolant to the heat sink fin area in the form of a jet, spray or shower.

[0007] A further improvement of the present invention is that the fluid distribution structure is in any of the following forms: a jet structure: arranged on the inner surface of the bottom cover and connected to the fluid inlet fluid, with a plurality of guide micropores distributed on its surface, and the direction of each guide micropore is toward the heat dissipation fin area; a discrete atomization assembly: comprising a plurality of independently arranged atomization elements, each atomization element is embedded in the inner surface of the bottom cover and the inlet end is connected to the fluid inlet, and the outlet end is toward the heat dissipation fin area; a sprinkler structure: composed of a plurality of guide flow holes that pass through the inner surface to the outer surface of the bottom cover, the inlet end of each guide flow hole is connected to the fluid inlet, and the outlet end is toward the heat dissipation fin area.

[0008] A further improvement of the present invention is that the flow path of the cooling channel is a continuous surrounding path surrounding the heat dissipation fin area, the continuous surrounding path is defined by a collecting plate arranged on the edges of the upper cover and the bottom cover, and the two ends of the flow path are respectively connected to the fluid inlet and the fluid outlet.

[0009] According to a further improvement of the present invention, a drainage opening is provided on one side of the collecting plate, and a one-way flow path is formed between the drainage opening and the fluid outlet through an isolation extension.

[0010] According to a further improvement of the present invention, the continuous circumferential path is a U-shaped flow path. After the coolant enters the fluid inlet, it circles the heat dissipation fin area along the U-shaped path defined by the collecting plate and finally flows to the fluid outlet through the drainage opening.

[0011] According to a further improvement of the present invention, after being dispersed by the fluid distribution structure, the coolant diffuses to the surroundings or is guided along a specific path to the heat sink fin area, so that the coolant evenly covers at least a portion of the surface of the heat sink fin area.

[0012] A further improvement of the present invention is that a mutually cooperating sealing structure is provided between the upper cover and the bottom cover, and the sealing structure includes: an annular sealing groove is provided on the bottom edge of the upper cover; an annular sealing flange is provided on the top edge of the bottom cover that matches the sealing groove; the sealing flange is embedded in the sealing groove, and the sealing flange is fixed to the sealing groove.

[0013] According to a further improvement of the present invention, the upper cover and the bottom cover are fixedly connected by any one of the following methods: a plurality of locking holes are arranged at intervals along the outer periphery of the cooling channel, and the upper cover and the bottom cover are locked by screws passing through the locking holes; the joint surfaces of the upper cover and the bottom cover are fixed by welding or sealing glue.

[0014] A composite heat dissipation system comprises: the composite heat dissipation module described above; an external circulation cooling system, which comprises a water pump, a radiator and a circulation pipeline, the circulation pipeline connecting the fluid inlet and the fluid outlet of the composite heat dissipation module to form a coolant circulation loop; the water pump drives the coolant to flow through the following links in sequence: a heat absorption link within the module: the coolant enters the composite heat dissipation module from the fluid inlet, is dispersed to the heat dissipation fin area through the fluid distribution structure, flows along the cooling flow channel and performs forced convection heat exchange with the heat dissipation fins and the temperature equalizing plate to absorb the heat generated by the heating element; a heat dissipation link outside the module: the coolant after absorbing heat is discharged from the fluid outlet, transported to the radiator through the circulation pipeline, and dissipates the heat to the external environment through the radiator; a coolant reflux link: the coolant after cooling is pressurized by the water pump and then re-injected into the fluid inlet for continuous circulation and heat dissipation.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: This composite heat dissipation module includes: a temperature equilibrium plate, a thermal contact portion for contacting a heating element at the bottom thereof, and a plurality of heat fins arranged on the top surface; a water cooling structure covering the top of the temperature equilibrium plate, the water cooling structure including: an upper cover and a bottom cover, the two being combined to form a cooling channel; a fluid inlet and a fluid outlet, respectively connected to the cooling channel; a fluid distribution structure, arranged in an area of the bottom cover adjacent to the fluid inlet, for guiding the coolant to the area where the heat dissipation fins are located; the coolant enters through the fluid inlet, is dispersed to the heat dissipation fin area through the fluid distribution structure, flows along the cooling channel, exchanges heat with the heat dissipation fins, and is discharged from the fluid outlet; the present invention significantly improves the heat dissipation efficiency through structural innovation and fluid optimization, overcomes the problem of unsatisfactory heat dissipation effect in the prior art, and has important application value and promotion significance.

[0016] Furthermore, the present invention also provides a composite heat dissipation system, including the above-mentioned composite heat dissipation module and an external circulation cooling system. The external circulation cooling system includes a water pump, a radiator and a circulation pipeline to form a continuous circulation loop of the coolant to achieve a complete heat dissipation process of heat absorption inside the module, heat dissipation outside the module and coolant reflux.

[0017] In summary, the present invention significantly improves heat dissipation performance by optimizing fluid distribution, coolant flow path, and efficient circulation, overcoming the problem of insufficient heat dissipation in the prior art. Furthermore, the present invention has the characteristics of a simple and reasonable structure.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is a schematic diagram of the second decomposition structure of the present invention; Figure 4 This is a schematic diagram of the third decomposition structure of the present invention; Figure 5 This is a schematic diagram of the four decomposition structures of the present invention; Figure 6 It is a schematic diagram of the coolant flow path structure of the present invention.

[0020] Figure numerals: 1. Temperature equalizing plate; 12. Thermal contact portion; 2. Water cooling structure; 21. Upper cover; 22. Bottom cover; 23. Cooling channel; 24. Fluid inlet; 25. Fluid outlet; 26. Fluid distribution structure; 3. Heat dissipation fins; 4. Collecting plate; 5. Drainage opening; 6. Isolation extension portion; 7. Sealing structure; 71. Annular sealing groove; 72. Annular sealing flange; 8. Locking hole. DETAILED DESCRIPTION

[0021] In the present invention, unless otherwise expressly specified or limited, the terms "install," "connect," "connect," "fix," and the like should be understood in a broad sense. For example, they may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. There are various methods for removable installation, such as plug-in and snap-fit connections, or bolt connections.

[0022] The present invention will be described in more detail below with reference to specific examples, but the embodiments of the present invention are not limited thereto. The examples are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention. For process parameters or conditions not specifically noted, conventional techniques may be used.

[0023] See also Figures 1-6 As shown, the technical solution adopted in this specific embodiment is: a composite heat dissipation module, comprising: a temperature equalizing plate 1, a thermal contact portion 12 for contacting a heating element is provided at the bottom thereof, and a plurality of heat dissipation fins 3 are arranged on the top surface; a water cooling structure 2, covering the top of the temperature equalizing plate 1, and the water cooling structure 2 comprises: an upper cover 21 and a bottom cover 22, which are combined to form a cooling channel 23; a fluid inlet 24 and a fluid outlet 25, which are respectively connected to the cooling channel 23; a fluid distribution structure 26, which is arranged in the area of the bottom cover 22 adjacent to the fluid inlet 24, and is used to guide the coolant to the area where the heat dissipation fins 3 are located; the coolant enters through the fluid inlet 24, is dispersed to the heat dissipation fin 3 area through the fluid distribution structure 26, flows along the cooling channel 23 and exchanges heat with the heat dissipation fins 3, and is discharged from the fluid outlet 25.

[0024] Specifically, the bottom of the vapor chamber 1 is provided with a thermal contact portion 12, which is designed to contact the heat-generating element to facilitate heat transfer. The top surface of the vapor chamber 1 is arranged with multiple heat sink fins 3, which are used to increase the surface area and improve heat exchange efficiency. The heat sink fins 3 can be pin-shaped fins, such as pin fins, and can be arranged in an array, multiple rows, or a checkerboard pattern. This structure effectively increases the heat exchange area and promotes air circulation, thereby improving heat dissipation. The heat sink fins 3 are evenly arranged along the top surface of the vapor chamber 1, forming an efficient heat dissipation structure. A water-cooling structure 2 overlies the top of the vapor chamber 1, and its cooling channels 23 conduct coolant, removing heat through heat exchange with the heat sink fins 3 and the vapor chamber 1. The design of the upper cover 21 and bottom cover 22 of the water-cooling structure 2 ensures that the cooling channels 23 are sealed and have a certain structural strength to withstand high-temperature or high-pressure environments. The fluid inlet 24 is located at the top of the upper cover 21 of the water-cooling structure 2, through which the coolant flows into the cooling channel 23. The fluid outlet 25 is located at the top of the upper cover 21 of the water-cooling structure 2, through which the coolant, having removed heat, is discharged. The heat spreader 1 is composed of a first plate and a second plate, forming an airtight chamber between the two. The airtight chamber contains a capillary structure and is filled with a working fluid, which forms a two-phase heat transfer cycle when heated. This is prior art and will not be described in detail here.

[0025] In this embodiment, the composite heat dissipation module consists of a temperature equalizing plate 1, an upper cover 21, a bottom cover 22 and a plurality of heat dissipation fins 3. The bottom of the temperature equalizing plate 1 contacts the heating element through the thermal contact portion 12, absorbs heat from the heating element, and dissipates heat through the heat dissipation fins 3. The water cooling structure 2 covers the top of the temperature equalizing plate 1 to form a cooling channel 23, wherein the fluid inlet 24 and the fluid outlet 25 are respectively connected to the two ends of the cooling channel 23. The coolant enters the fluid inlet 24, is dispersed to the heat dissipation fin 3 area through the fluid distribution structure 26, flows along the cooling channel 23 and exchanges heat with the heat dissipation fins 3, and is finally discharged from the fluid outlet 25. However, by adopting the water cooling structure 2, the composite heat dissipation module can achieve efficient heat dissipation. The temperature equalizing plate 1 can evenly distribute heat, the heat dissipation fins 3 provide a larger heat dissipation surface, and the fluid distribution structure 26 ensures that the coolant can evenly cover the surface of the heat dissipation fins 3, thereby enhancing the heat exchange efficiency and improving the overall heat dissipation performance of the module.

[0026] It should be noted that in different application scenarios, different types of liquids can be used as coolant, such as water, oil, or other cooling liquids to meet different heat dissipation requirements. In addition, the shape and number of the heat dissipation fins 3 can also be adjusted according to the specific heat load requirements, and the number of fins can be increased or decreased to optimize the heat dissipation effect.

[0027] The fluid distribution structure 26 is located in the inner space of the bottom cover 22 facing the heat sink fins 3 and is connected to the fluid inlet 24. It is used to direct the coolant to the heat sink fins 3 in the form of a jet, spray, or shower. Specifically, the fluid distribution structure 26 is provided in the area of the bottom cover 22 adjacent to the fluid inlet 24, i.e., the top of the bottom cover 22. The function of the fluid distribution structure 26 is to evenly distribute the coolant to the heat sink fins 3. This distribution structure can take various forms, such as a jet structure, a discrete atomization component, or a shower structure.

[0028] In this embodiment, the fluid distribution structure 26 is located in the inner space of the bottom cover 22, near the fluid inlet 24. The function of the fluid distribution structure 26 is to guide the coolant at the fluid inlet 24 to the heat sink fin 3 area, and evenly distribute it on the heat sink fin 3 in the form of a jet, spray or sprinkle. The jet form sprays the coolant into the heat sink fin 3 area in the form of a high-pressure jet through multiple micropores; the spray form disperses the coolant into tiny particles through an atomizing device, covering the surface of the heat sink fin 3; the sprinkler form evenly sprinkles the coolant onto the heat sink fin 3 through multiple through holes. However, this design can effectively increase the contact area between the coolant and the heat sink fin 3, thereby enhancing the heat exchange efficiency. By adjusting the fluid distribution form, the flow direction and coverage range of the coolant can be flexibly controlled, thereby optimizing the heat dissipation effect according to actual needs.

[0029] It should be noted that in addition to jets, sprays, or showers, other distribution structures, such as airflow-assisted cooling, can also be used as an alternative to liquid cooling. In particular, in high-temperature environments, using gas as the cooling medium can reduce system complexity. Furthermore, the arrangement of the fluid distribution structure 26 can be customized to meet specific cooling requirements, resulting in a more refined distribution method.

[0030] The fluid distribution structure 26 is in any of the following forms: The jet structure is provided on the inner surface of the bottom cover 22 and is in fluid communication with the fluid inlet 24. A plurality of guide micro-holes are distributed on the surface of the jet structure, and each guide micro-hole is directed toward the heat dissipation fin 3 area. Discrete atomization assembly: comprising a plurality of independently arranged atomization elements, each atomization element is embedded in the inner surface of the bottom cover 22 and has an inlet end connected to the fluid inlet 24 and an outlet end facing the heat sink fin 3 area; Sprinkler structure: It is composed of a plurality of flow-guiding holes that penetrate the inner surface to the outer surface of the bottom cover 22. The inlet end of each flow-guiding hole is connected to the fluid inlet 24, and the outlet end faces the area of the heat dissipation fins 3. Among them, the sprinkler structure is preferably used.

[0031] Specifically, the jet structure, located on the inner surface of the bottom cover 22, guides the coolant through multiple micro-holes, creating a jet effect that directly guides the coolant to the heat sink fins 3 area. The discrete atomization component uses multiple atomization elements to disperse the coolant into tiny droplets, improving the cooling effect. The shower structure uses multiple guide holes that penetrate the bottom cover 22 to create a shower effect, evenly covering the heat sink fins 3 area with coolant.

[0032] In this embodiment, the fluid distribution structure 26 adopts a sprinkler structure. This structure is composed of a plurality of guide holes that penetrate the inner surface of the bottom cover 22 to the outer surface. After the coolant enters from the fluid inlet 24, it is dispersed to the heat sink fin 3 area through these through holes. The outlet end of each guide hole is oriented toward the heat sink fin 3 area to ensure that the coolant can be evenly sprinkled to the heat sink fin 3, thereby improving the heat dissipation efficiency. However, the sprinkler structure is simple and has a low manufacturing cost, and can achieve wide and uniform coverage during the flow of the coolant. This structure helps to improve the cooling effect, reduce the waste of coolant, and effectively reduce the complexity of the system.

[0033] It should be noted that if a stronger cooling effect or more precise coolant distribution is required, a jet structure or discrete atomization components can be considered. The jet structure is suitable for situations where stronger localized cooling is required, while the discrete atomization component can increase the surface contact area of the coolant, thereby further improving heat exchange efficiency.

[0034] The flow path of the cooling channel 23 is a continuous, circumferential path surrounding the heat sink fins 3. This continuous, circumferential path is defined by a collector plate 4 disposed at the edges of the upper cover 21 and the bottom cover 22, with both ends of the flow path connected to the fluid inlet 24 and the fluid outlet 25, respectively. Specifically, the flow path of the cooling channel 23 forms a circumferential path around the heat sink fins 3, providing more efficient heat exchange. The collector plate 4 is disposed at the edges of the upper cover 21 and the bottom cover 22, defining the flow path of the coolant. The collector plate 4 can be provided with drainage openings 5 as needed to form a one-way flow path and ensure smooth discharge of the coolant.

[0035] In this embodiment, the flow path of the cooling channel 23 is designed as a continuous surrounding path around the heat sink fin 3 area. The path is defined by the collecting plate 4 provided at the edge of the upper cover 21 and the bottom cover 22, ensuring that the coolant can flow along the path and perform heat exchange through the heat sink fins 3. At both ends of the cooling channel 23, a fluid inlet 24 and a fluid outlet 25 are provided, respectively, so that the coolant can flow smoothly and effectively take away heat when flowing through the heat sink fin 3 area. However, this design can effectively improve the flow efficiency of the coolant, ensuring that the coolant can fully contact the heat sink fin 3 when flowing through the heat sink fin 3 area, thereby enhancing the heat exchange effect. The continuous surrounding path helps to evenly distribute the coolant and improve the heat dissipation effect.

[0036] It should be noted that, in addition to the circular path, flow paths of other shapes can also be designed according to different needs, such as a U-shaped flow path, to further optimize the flow of the coolant and the heat exchange process.

[0037] A drainage opening 5 is provided on one side of the collector plate 4. A one-way flow path is formed between this drainage opening 5 and the fluid outlet 25 via an isolation extension 6. Specifically, the drainage opening 5 is an outlet channel on one side of the collector plate 4, primarily used to guide coolant out of the cooling channel 23 and forming a one-way flow path through the isolation extension 6. The isolation extension 6 ensures that the coolant flows only in a specific direction during operation, preventing backflow. This component design optimizes coolant flow efficiency and ensures the stability of the cooling effect.

[0038] In this embodiment, a drainage opening 5 is provided on one side of the collecting plate 4 of the composite heat dissipation module. A one-way flow path is formed between the opening and the fluid outlet 25 through an isolating extension 6. The design of the drainage opening 5 ensures that the coolant can only flow along the prescribed path, thereby preventing the coolant from generating backflow or other unnecessary paths during the flow process. This one-way flow path ensures that the coolant can smoothly pass through the cooling channel 23 after entering from the fluid inlet 24, and quickly flow to the fluid outlet 25 after completing the heat exchange, thereby effectively improving the heat dissipation efficiency. However, this design helps to improve the fluid efficiency of the system, reduce the time the coolant stays in the system, and avoid unnecessary heat accumulation caused by backflow. Through the design of the isolating extension 6 between the drainage opening 5 and the fluid outlet 25, the one-way flow of the fluid ensures the efficient conduction and dissipation of heat within the system.

[0039] It should be noted that the specific position and shape of the drainage opening 5 can be adjusted according to actual needs. In addition to using the isolation extension 6 to form a unidirectional flow path, the angle of the collector plate 4 can be adjusted or the opening design can be optimized to accommodate different cooling system requirements. Furthermore, the length and shape of the isolation extension 6 can also be optimized based on different fluid flow rate requirements to achieve the optimal cooling effect.

[0040] The continuous circumferential path is a U-shaped flow path. After entering the module through the fluid inlet 24, the coolant flows along the U-shaped path defined by the collector plate 4, circling the heat sink fins 3 area, and finally flowing through the drainage opening 5 to the fluid outlet 25. Specifically, the continuous circumferential path adopts a U-shaped structure, or a structure similar to a U-shaped structure. After entering the module through the fluid inlet 24, the coolant flows along the U-shaped path defined by the collector plate 4, circling the heat sink fins 3 area, completing the heat exchange process. This flow path design ensures that the coolant remains in the heat sink fins 3 area for a longer time, helping to improve heat dissipation efficiency.

[0041] In this embodiment, after the coolant enters from the fluid inlet 24, it flows along the U-shaped path defined by the collecting plate 4 and surrounds the area of the heat dissipation fins 3. During this process, the coolant fully exchanges heat with the surface of the heat dissipation fins 3 and absorbs the heat generated by the heating element. When the coolant completes the heat exchange, it flows to the fluid outlet 25 through the drainage opening 5 to continue to dissipate heat. However, the U-shaped flow path can ensure that the coolant is in uniform contact with the heat dissipation fins 3 during the flow process, thereby improving the efficiency of the heat exchange. When the coolant flows through the entire heat dissipation area, the heat can be fully absorbed and taken away in time, further improving the performance of the heat dissipation module.

[0042] It should be noted that in addition to the U-shaped flow path, other flow paths can also be used, such as a circular path or a spiral path. The specific path design can be optimized based on the coolant flow rate, heat dissipation requirements, and fluid dynamics to achieve the best heat exchange effect.

[0043] After the coolant is dispersed by the fluid distribution structure 26, it diffuses in all directions or is guided along a specific path to the heat sink fin 3 area, so that the coolant evenly covers at least part of the surface of the heat sink fin 3 area. Specifically, the fluid distribution structure 26 is designed to ensure that the coolant is evenly distributed to the heat sink fin 3 area after entering the module. After the coolant is dispersed, the diffusion guide path can diffuse along a specific path or diffuse in all directions to the surface of the heat sink fin 3, ensuring that the entire heat sink area is evenly cooled. Here, it refers to the way in which the fluid distribution structure 26 guides the coolant to the heat sink fin 3 area according to the design, which can be natural four-way diffusion or a designated flow path formed by jet / sprinkling control.

[0044] In this embodiment, after the coolant enters the module through the fluid distribution structure 26, it is evenly dispersed and diffused to the surroundings or guided to the heat sink fin 3 area along a specific path. In this way, the coolant can evenly cover the surface of the heat sink fin 3, ensuring that the heat exchange process is more efficient. The uniform distribution of the coolant improves the heat dissipation effect of the heat sink fin 3 and avoids local overheating or uneven heat dissipation. However, the uniform distribution of the coolant improves the heat dissipation efficiency and reduces the accumulation of heat, thereby improving the overall heat dissipation performance. Through the precisely designed fluid distribution structure 26, it can be ensured that the coolant effectively covers all surfaces of the heat sink fin 3, so that the heat dissipation module can maintain efficient heat exchange even when working under high load.

[0045] It should be noted that the specific form of the fluid distribution structure 26 can be adjusted according to the requirements of the coolant flow. For example, the coolant flow path can be optimized by changing the number, diameter, or position of the distribution holes. In addition to the diffusion form, the fluid distribution structure 26 can also be designed in the form of a jet or spray to achieve different cooling effects.

[0046] A sealing structure 7 that cooperates with each other is provided between the upper cover 21 and the bottom cover 22. The sealing structure 7 includes: an annular sealing groove 71 is provided on the bottom edge of the upper cover 21; an annular sealing flange 72 that matches the sealing groove is provided on the top edge of the bottom cover 22; the sealing flange is embedded in the sealing groove, and the sealing flange is fixed to the sealing groove. Specifically, a sealing structure 7 is formed between the upper cover 21 and the bottom cover 22 by the annular sealing groove 71 and the annular sealing flange 72. The annular sealing groove 71 is provided at the bottom edge of the upper cover 21 and is used to embed the annular sealing flange 72 of the bottom cover 22 to ensure that the coolant does not leak. The annular sealing flange 72 on the top edge of the bottom cover 22 cooperates with the annular sealing groove 71 of the upper cover 21 to ensure the sealing effect and improve the working stability and durability of the module.

[0047] In this embodiment, the sealing flange is embedded in the sealing groove, ensuring a tight seal between the upper cover 21 and the bottom cover 22, thereby preventing coolant leakage and ensuring stable system operation. Furthermore, the design of the sealing structure 7 effectively prevents coolant leakage, improving the sealing and safety of the cooling system. Good sealing not only prevents liquid leakage but also increases the system's service life and performance stability.

[0048] It should be noted that, in addition to the annular sealing groove 71 and the sealing flange, other types of sealing structures 7 may also be used, such as O-rings, compression sealing structures 7, etc. The specific selection may be adjusted according to the working conditions and fluid characteristics of the system.

[0049] The upper cover 21 and the bottom cover 22 are fixedly connected by any of the following methods: a plurality of locking holes 8 are arranged at intervals along the outer periphery of the cooling channel 23, and the upper cover 21 and the bottom cover 22 are locked by screws penetrating the locking holes 8; or the upper cover 21 and the bottom cover 22 are fixed by welding or sealant between the joint surfaces. Specifically, the upper cover 21 and the bottom cover 22 can be fixedly connected in two ways to ensure that the structure of the module is stable and prevent loosening. Among them, the locking holes 8 on the periphery of the cooling channel 23 cooperate with the screws to firmly connect the upper cover 21 and the bottom cover 22 together. In addition, the upper cover 21 and the bottom cover 22 can be fixed by welding or sealant between the joint surfaces to further ensure that the coolant does not leak out and enhance the sealing of the module.

[0050] In this embodiment, the upper cover 21 and the bottom cover 22 are fixedly connected by a plurality of locking holes 8, and the locking holes 8 are evenly distributed on the periphery of the cooling channel 23. The upper cover 21 and the bottom cover 22 are locked together by screw fastening, thereby ensuring the stability and sealing of the cooling system. Alternatively, the joint surface can be fixed by welding or sealant to prevent coolant leakage. The above-mentioned fixing method can make the heat dissipation module not easy to loosen or deform during long-term use, which can effectively improve the reliability of the product. The use of screw fixing also facilitates the maintenance and disassembly of the equipment.

[0051] It should be noted that in addition to screw fixation, welding, snap-fit structures, or other quick fixation methods can also be used. According to the actual use requirements of the heat dissipation system, the most appropriate fixation method can be selected to further improve the flexibility and adaptability of the design.

[0052] A composite heat dissipation system comprises: the composite heat dissipation module described above; and an external circulation cooling system, which comprises a water pump, a radiator and a circulation pipeline, wherein the circulation pipeline connects the fluid inlet 24 and the fluid outlet 25 of the composite heat dissipation module to form a coolant circulation loop; the water pump drives the coolant to flow through the following links in sequence: a heat absorption link within the module: the coolant enters the composite heat dissipation module from the fluid inlet 24, is dispersed to the heat dissipation fin 3 area through the fluid distribution structure 26, flows along the cooling flow channel 23 and performs forced convection heat exchange with the heat dissipation fin 3 and the temperature uniformity plate 1 to absorb the heat generated by the heating element; a heat dissipation link outside the module: the coolant after absorbing heat is discharged from the fluid outlet 25, transported to the radiator through the circulation pipeline, and dissipates the heat to the external environment through the radiator; a coolant reflux link: the coolant after cooling is pressurized by the water pump and then re-injected into the fluid inlet 24 for continuous circulation and heat dissipation.

[0053] Specifically, the water pump of the external circulation cooling system is used to pressurize and drive the coolant to flow in the circulation pipeline to maintain the flow rate and pressure. The radiator is used to release the heat in the coolant to the environment, and usually includes an air-cooled or liquid-cooled heat exchanger. The circulation pipeline connects the fluid inlet 24 and the fluid outlet 25 of the composite heat dissipation module to form a closed loop, and the material can be corrosion-resistant plastic or metal pipe. In the heat absorption link inside the module, the coolant enters through the fluid inlet 24, and after being dispersed by the fluid distribution structure 26, it covers the surface of the needle-shaped fin area, and performs forced convection heat exchange with the fins and the surface of the temperature plate 1 to absorb the heat generated by the heat source. In the heat dissipation link outside the module, the coolant after absorbing heat is discharged through the fluid outlet 25 and transported to the external radiator through the circulation pipeline. It is cooled by exchanging heat with the air or the ambient medium. In the coolant reflux link, the cooled coolant is re-pressurized by the water pump and injected into the fluid inlet 24 to enter the next cycle, achieving continuous and efficient heat dissipation.

[0054] In this embodiment, the composite heat dissipation system includes a composite heat dissipation module and an external circulation cooling system. The design of the composite heat dissipation module includes a combination of a temperature distribution plate 1 and a water cooling structure 2, wherein the coolant enters the cooling channel 23 through the fluid inlet 24, exchanges heat with the heat dissipation fins 3 along the flow path, and is finally discharged through the fluid outlet 25. The external circulation cooling system includes a water pump, a radiator and a circulation pipeline. The water pump drives the coolant into the composite heat dissipation module from the fluid inlet 24. The coolant is guided by the fluid distribution structure 26 and evenly dispersed to the heat dissipation fin 3 area, exchanges heat with the heat dissipation fins 3, and absorbs heat. The coolant whose heat is taken away is discharged through the fluid outlet 25 and transported to the radiator through the circulation pipeline. After the heat dissipation process of the radiator, the temperature of the coolant is reduced in the external environment, and then it is pressurized by the water pump and re-enters the system for recycling.

[0055] However, through the combination of the water cooling system and the heat sink fins 3, the coolant forces convection heat transfer to the heat dissipation area, improving heat dissipation efficiency. The circulation of the coolant continuously conducts heat from the heating element to the external environment, preventing heat dissipation overload. Furthermore, the system uses a water pump to drive the coolant circulation, effectively preventing heat accumulation and uneven heat dissipation, ensuring the temperature stability of the composite heat dissipation module and the entire system. Through circulating cooling, the system can continuously provide strong heat dissipation capabilities, making it suitable for equipment in high-power, high-temperature environments.

[0056] It's important to note that the selection of radiators and water pumps depends on actual usage requirements. The types of radiators and water pumps can be adjusted based on power requirements and coolant flow rate. For example, for lower-power applications, a smaller radiator and lower-power water pump can be selected to reduce system size and energy consumption. Furthermore, to increase system flexibility, the coolant flow path can be optimized. For example, adjustable cooling channels can be designed to adjust the coolant flow rate based on changing cooling requirements.

[0057] In this specific embodiment, when the composite heat dissipation module starts working, the water pump of the external circulation cooling system is started, and the coolant is injected into the cooling channel 23 from the fluid inlet 24. The coolant first passes through the fluid distribution structure 26 provided on the inner side of the bottom cover 22, and is dispersed and directed to the heat dissipation fin 3 area in the form of a jet, spray or shower, so that the coolant can fully cover the surface of the heat dissipation fin 3 and quickly take away the heat from the heating element absorbed by the heat spreader 1 and the heat dissipation fin 3. Subsequently, the coolant flows along a continuous circular path defined by the collecting plate 4, preferably a U-shaped path, and further performs forced convection heat exchange with the heat dissipation fin 3 and the heat spreader 1 during the flow process, thereby efficiently absorbing heat. The coolant after absorbing heat is guided through the drainage opening 5 and finally discharged from the fluid outlet 25 and transported to the external radiator through the circulation pipeline, releasing heat to the environment, completing the coolant cooling process. The cooled coolant is injected into the composite heat dissipation module again under the drive of the water pump to achieve continuous circulation, thereby ensuring that the heating element is in an efficient heat dissipation and stable temperature control state during the entire working process.

[0058] The above is a clear and complete description of the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0059] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A composite heat dissipation module, characterized in that: include: A temperature homogenizing plate, the bottom of which is provided with a thermal contact portion for contacting the heating element, and the top surface of which is arranged with a plurality of heat dissipation fins; A water cooling structure is covered on the top of the temperature homogenizer, and the water cooling structure includes: The upper cover and the bottom cover are combined to form a cooling channel; A fluid inlet and a fluid outlet are respectively connected to the cooling channel; a fluid distribution structure, disposed in an area of the bottom cover adjacent to the fluid inlet, for directing the coolant to an area where the heat dissipation fins are located; The coolant enters through the fluid inlet, is distributed to the heat sink fin area through the fluid distribution structure, flows along the cooling channel and exchanges heat with the heat sink fins, and is then discharged from the fluid outlet.

2. The composite heat dissipation module according to claim 1, characterized in that: The fluid distribution structure is located in the inner space of the bottom cover facing the heat dissipation fin area and is connected to the fluid inlet for directing the coolant to the heat dissipation fin area in the form of a jet, spray or shower.

3. The composite heat dissipation module according to claim 2, characterized in that: The fluid distribution structure is in any of the following forms: The jet structure is arranged on the inner surface of the bottom cover and is in fluid communication with the fluid inlet. A plurality of guide micro-holes are distributed on the surface of the jet structure, and each guide micro-hole is directed toward the heat dissipation fin area. Discrete atomization assembly: comprising a plurality of independently arranged atomization elements, each atomization element is embedded in the inner surface of the bottom cover, with an inlet end connected to the fluid inlet and an outlet end facing the heat dissipation fin area; The shower structure is composed of a plurality of flow-guiding holes that pass through the inner surface to the outer surface of the bottom cover. The inlet end of each flow-guiding hole is connected to the fluid inlet, and the outlet end faces the heat dissipation fin area.

4. The composite heat dissipation module according to claim 1, characterized in that: The flow path of the cooling channel is a continuous surrounding path surrounding the heat dissipation fin area, and the continuous surrounding path is defined by collecting plates arranged on the edges of the upper cover and the bottom cover, and the two ends of the flow path are respectively connected to the fluid inlet and the fluid outlet.

5. The composite heat dissipation module according to claim 4, characterized in that: A drainage opening is provided on one side of the current collecting plate, and a one-way flow path is formed between the drainage opening and the fluid outlet through an isolation extension.

6. The composite heat dissipation module according to any one of claims 4 or 5, characterized in that: The continuous circumferential path is a U-shaped flow path. After the coolant enters the fluid inlet, it circles the heat dissipation fin area along the U-shaped path defined by the collecting plate and finally flows to the fluid outlet through the drainage opening.

7. The composite heat dissipation module according to claim 1, characterized in that: After being dispersed by the fluid distribution structure, the coolant diffuses to the surroundings or is guided to the heat dissipation fin area along a specific path, so that the coolant evenly covers at least a portion of the surface of the heat dissipation fin area.

8. The composite heat dissipation module according to claim 1, characterized in that: A sealing structure that cooperates with each other is provided between the upper cover and the bottom cover, and the sealing structure includes: The bottom edge of the upper cover is provided with an annular sealing groove; The top edge of the bottom cover is provided with an annular sealing flange matching the sealing groove; The sealing flange is embedded in the sealing groove and is fixed to the sealing groove.

9. The composite heat dissipation module according to claim 8, characterized in that: The upper cover and the bottom cover are fixedly connected by any of the following methods: A plurality of locking holes are arranged at intervals along the outer circumference of the cooling channel, and screws are passed through the locking holes to lock the upper cover and the bottom cover; The upper cover and the bottom cover are fixed at their joint surfaces by welding or sealing adhesive.

10. A composite heat dissipation system, characterized in that: include: The composite heat dissipation module according to claim 1; An external circulation cooling system, comprising a water pump, a radiator and a circulation pipeline, wherein the circulation pipeline connects the fluid inlet and the fluid outlet of the composite heat dissipation module to form a coolant circulation loop; The water pump drives the coolant to flow through the following links in sequence: Heat absorption link within the module: The coolant enters the composite heat dissipation module from the fluid inlet, is dispersed to the heat dissipation fin area through the fluid distribution structure, flows along the cooling channel, and performs forced convection heat exchange with the heat dissipation fins and the temperature plate to absorb the heat generated by the heating element; External heat dissipation link of the module: the coolant after absorbing heat is discharged from the fluid outlet and transported to the radiator through the circulation pipeline, and the heat is dissipated to the external environment through the radiator; Coolant return link: The cooled coolant is pressurized by the water pump and then re-injected into the fluid inlet for continuous circulation and heat dissipation.

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