Composite radiator and server

Abstract

The utility model provides a composite radiator and a server, relates to the technical field of radiators, and solves the technical problems in the prior art that single-cold-plate cooling has limitation, and the radiating effect is not ideal. The composite radiator and the server comprise a flat heat pipe, at least two groups of liquid cooling plates and at least one group of liquid supply mechanism, the at least two groups of liquid cooling plates are connected with a condensation section of the flat heat pipe, and the at least two groups of liquid cooling plates are connected with the at least one group of liquid supply mechanism to form at least two groups of liquid circulation loops. The utility model provides the composite radiator and the server which can avoid the loss of the heat dissipation function and effectively ensure the heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of radiators, in particular to a composite radiator and a server. Background Art

[0002] At present, the rapid development of new-generation information technologies such as 5G, cloud computing, and artificial intelligence, the accelerated integration of information technology and traditional industries, and the vigorous development of the digital economy have prompted data centers to become clustered and high-power dense. Traditional air cooling is limited by the low thermal conductivity of air and is no longer able to cope with problems such as high power and local hot spots in data centers.

[0003] Liquid cooling has gradually become the mainstream of data center cooling technology due to its higher heat dissipation efficiency and lower energy consumption. Cold plate liquid cooling technology can avoid direct contact between liquid and electronic equipment, reduce the risk of corrosion and short circuit of electronic equipment, and its high-efficiency cooling and precise cooling characteristics are more suitable for the heat dissipation of high-performance components such as CPUs in servers. It is the main liquid cooling solution in recent years. The principle is to process microchannels on aluminum or copper substrates, attach the substrates to the CPU, and use a circulation system to allow the coolant to flow through the microchannels on the substrate to absorb the heat dissipated by the CPU. The circulation system uses a liquid pump, a piping system, and a heat exchanger to discharge the heat in the coolant.

[0004] Although cold plate liquid cooling technology reduces energy consumption, the following problems still exist: the cold plate is placed inside the server and there are many welds and connecting pipes. Once leakage occurs, it will cause irreversible consequences; if a single cold plate is used for cooling, if there is a lack of liquid or the flow channel is blocked, the heat dissipation function will be lost and there is a risk of burning the CPU; currently, the power consumption of a single CPU has exceeded 600W, and the power consumption of a single GPU has exceeded 1000W. The heat dissipation method of a single cold plate can no longer meet the heat dissipation needs. Utility Model Content

[0005] The purpose of the utility model is to provide a composite radiator and a server to solve the technical problem that the single cold plate cooling in the prior art has limitations and easily leads to unsatisfactory heat dissipation effect. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The composite radiator provided by the utility model comprises a flat heat pipe, at least two groups of liquid cooling plates and at least one group of liquid supply mechanism, at least two groups of the liquid cooling plates are connected to the condensing section of the flat heat pipe, and at least two groups of the liquid cooling plates are connected to at least one group of the liquid supply mechanism to form at least two groups of liquid circulation loops.

[0008] Optionally, at least two groups of the liquid cooling plates are respectively connected to at least two outer surfaces of the condensing section.

[0009] Optionally, at least two groups of insertion ports are provided on the condensing section, the liquid cooling plate is embedded in the steam cavity of the condensing section through the insertion ports, and a flow gap is provided between the liquid cooling plate and the inner wall of the steam cavity.

[0010] Optionally, the liquid cooling plate includes a first cold plate cover and a plurality of first convex ribs arranged in the first cold plate cover, wherein the plurality of first convex ribs are arranged side by side and at intervals, and a first microchannel is formed between two adjacent first convex ribs.

[0011] Optionally, a plurality of the first convex ribs are arranged on the condensing section, and the first cold plate cover is connected to the condensing section and covers the first convex ribs.

[0012] Optionally, at least two groups of cylindrical tubes are arranged on the flat heat pipe, and at least two groups of liquid cooling plates are sleeved on the at least two groups of cylindrical tubes.

[0013] Optionally, the liquid cooling plate includes a second cold plate cover body and a plurality of second ribs arranged in the second cold plate cover body, the plurality of second ribs are distributed in a ring array on the outside of the cylindrical tube, a second microchannel is formed between two adjacent second ribs, and the second cold plate cover body is connected to the cylindrical tube and covers the outside of the second ribs.

[0014] Optionally, the condensation section of the flat plate heat pipe is provided with at least two condensation ends, and at least two groups of the liquid cooling plates are arranged on at least two condensation ends of the condensation section.

[0015] Optionally, the evaporation section of the flat plate heat pipe is provided with at least two evaporation ends.

[0016] Optionally, at least two groups of the liquid cooling plates are integrally formed with the condensing section of the flat plate heat pipe.

[0017] Optionally, the liquid supply mechanism includes a condenser, a shunt pipe, a collecting pipe and a pump body, and a liquid inlet pipe and a liquid outlet pipe are provided on the liquid cooling plate, the liquid inlet pipe is connected to the shunt pipe, and the liquid outlet pipe is connected to the collecting pipe, and the pump body, the condenser, the collecting pipe, the liquid cooling plate and the shunt pipe constitute a liquid circulation loop.

[0018] A server comprises a cabinet and the composite radiator as described above, wherein the flat heat pipe extends from the inside of the cabinet to the outside of the cabinet, and at least two groups of liquid cooling plates are arranged outside the cabinet.

[0019] The beneficial effects of the present invention are as follows: the composite radiator and server provided by the present invention include a flat heat pipe, at least two groups of liquid cooling plates and at least one group of liquid supply mechanism, at least two groups of the liquid cooling plates are connected to the condensing section of the flat heat pipe, and the two groups of the liquid cooling plates are connected to the liquid supply mechanism, and can form at least two groups of liquid circulation loops, at least two groups of liquid circulation loops can ensure the heat dissipation, and can ensure that when any one of the circulation loops has a problem, the other loops work normally to ensure a certain amount of heat dissipation, reducing the risk of loss of heat dissipation function due to lack of liquid or blockage of the flow channel during cooling with a single cold plate, ensuring the normal operation of the server, and can carry out maintenance without stopping the server when the problem is not solved in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a server in the first embodiment of the utility model;

[0022] Figure 2 It is a partial structural diagram of a server in the first embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a composite radiator of the first embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a composite radiator of a second embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a composite radiator of the third embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of a composite radiator of a fourth embodiment of the utility model;

[0027] Figure 7 It is an AA cross-sectional view of a composite radiator according to a fourth embodiment of the present utility model.

[0028] In the figure:

[0029] 10. Flat heat pipe; 20. Liquid cooling plate; 30. Liquid supply mechanism; 40. Server;

[0030] 11. Evaporation section; 12. Condensation section; 13. Evaporation end; 14. Condensation end; 15. Cylindrical tube; 16. Insertion port; 17. Mounting plate; 18. Flow gap;

[0031] 21. liquid inlet pipe; 22. liquid outlet pipe; 23. first cold plate cover; 24. first convex rib; 25. first microchannel; 26. second convex rib; 27. second microchannel; 28. second cold plate cover;

[0032] 31. Condenser; 32. Diverter pipe; 33. Collector pipe; 34. Pump body;

[0033] 41. Cabinet; 42. Condensation bracket. DETAILED DESCRIPTION

[0034] Please refer to the attached figure below Figure 1 to Figure 7 And the text content understands the content of the utility model and the difference between the utility model and the prior art. The following is a further detailed description of the technical solution (including the preferred technical solution) of the utility model by means of the accompanying drawings and the enumeration of some optional embodiments of the utility model. It should be noted that: any technical feature and any technical solution in the present embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, it is impossible to exhaustively list all the alternative technical features and alternative technical solutions of the utility model in this document, and it is not convenient for the implementation of each technical feature to emphasize that it is one of the optional multiple implementations, so those skilled in the art should know that: any technical means provided by the utility model can be replaced or any two or more technical means or technical features provided by the utility model can be combined with each other to obtain a new technical solution. Any technical feature and any technical solution in this embodiment do not limit the scope of protection of the utility model. The scope of protection of the utility model should include any alternative technical solutions that can be thought of by those skilled in the art without creative labor and new technical solutions obtained by combining any two or more technical means or technical features provided by the utility model.

[0035] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means two or more than two; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] The utility model provides a composite radiator and a server which can avoid the loss of heat dissipation function and effectively ensure the heat dissipation effect.

[0038] Combine the following Figure 1 to Figure 7 The technical solution provided by the utility model is described in more detail.

[0039] The utility model provides a composite radiator, comprising a flat heat pipe 10, at least two groups of liquid cooling plates 20 and at least one group of liquid supply mechanism 30, wherein at least two groups of the liquid cooling plates 20 are connected to the condensing section 12 of the flat heat pipe 10, and at least two groups of the liquid cooling plates 20 are connected to at least one group of the liquid supply mechanism 30 to form at least two groups of liquid circulation loops.

[0040] The composite radiator provided by the utility model comprises a flat heat pipe 10, at least two groups of liquid cooling plates 20 and at least one group of liquid supply mechanism 30. The at least two groups of liquid cooling plates 20 are connected to the condensing section 12 of the flat heat pipe 10, and the two groups of liquid cooling plates 20 are connected to the liquid supply mechanism 30, so as to form at least two groups of liquid circulation loops. The at least two groups of liquid circulation loops can ensure the heat dissipation, and can ensure that when any one of the circulation loops has a problem, the other loops work normally to ensure a certain amount of heat dissipation, thereby reducing the risk of loss of heat dissipation function due to lack of liquid or blockage of the flow channel during cooling with a single cold plate, ensuring the normal operation of the server 40, and being able to carry out maintenance without stopping the machine when the problem is not solved in time.

[0041] In some embodiments of the present invention, at least two groups of the liquid cooling plates 20 are respectively connected to at least two outer surfaces of the condensing section 12 .

[0042] In some of the above embodiments of the present invention, the liquid cooling plate 20 is connected to the outer surface of the condensing section 12 to dissipate the heat of the condensing section 12 to achieve the purpose of heat dissipation.

[0043] It can be understood that the condensation section 12 includes an upper surface and a lower surface, and at least two of the liquid cooling plates 20 can be arranged on the upper surface and the lower surface, so as to dissipate heat from the upper surface and the lower surface of the condensation section 12 at the same time, greatly improving the heat dissipation efficiency, increasing the heat dissipation area, and achieving better heat dissipation effect.

[0044] In some specific embodiments of the present invention, the condensation section 12 of the flat heat pipe 10 is provided with at least two condensation ends 14 , and at least two groups of the liquid cooling plates 20 are provided on at least two condensation ends 14 of the condensation section 12 .

[0045] In some specific embodiments of the utility model mentioned above, the condensation section 12 is provided with at least two condensation ends 14, and the at least two condensation ends 14 are used to distribute the heat discharged from the server 40 to the at least two condensation ends 14, and dissipate the heat through at least two liquid cooling plates 20. Multiple liquid cooling plates 20 can be used to dissipate the heat of the condensation section 12 to improve the heat dissipation effect.

[0046] It can be understood that at least two liquid cooling plates 20 are arranged on the outer surface of at least two condensation ends 14. Since each condensation end 14 has an upper surface and a lower surface, correspondingly, the number of the liquid cooling plates 20 is greater. By arranging more liquid cooling plates 20 to dissipate the heat of the condensation end 14, the heat dissipation efficiency is greatly improved, the heat dissipation area is increased, and the heat dissipation effect is better.

[0047] In some embodiments of the present invention, the liquid cooling plate 20 includes a first cold plate cover 23 and a plurality of first ribs 24 disposed in the first cold plate cover 23 . The plurality of first ribs 24 are arranged side by side and at intervals, and a first microchannel 25 is formed between two adjacent first ribs 24 .

[0048] In some of the above embodiments of the present invention, a plurality of first microchannels 25 are provided in the liquid cooling plate 20 , and the liquid supply mechanism 30 transports liquid into the liquid cooling plate 20 to form a liquid circulation loop, thereby achieving heat dissipation for the server 40 .

[0049] In some preferred embodiments of the present invention, a plurality of the first ribs 24 are disposed on the condensing section 12 , and the first cold plate cover 23 is connected to the condensing section 12 and covers the first ribs 24 .

[0050] In some preferred embodiments of the present invention described above, the first rib 24 is directly arranged on the condensing section 12, and the first cold plate cover 23 is directly connected to the condensing section 12, thereby eliminating the contact surface between the flat heat pipe 10 and the liquid cooling plate 20, reducing the contact thermal resistance, and increasing the heat exchange efficiency.

[0051] In some embodiments of the present invention, at least two groups of insertion ports 16 are provided on the condensing section 12, the liquid cooling plate 20 is embedded in the steam cavity of the condensing section 12 through the insertion ports 16, and a flow gap 18 is provided between the liquid cooling plate 20 and the inner wall of the steam cavity.

[0052] In some of the above-mentioned embodiments of the utility model, by embedding the liquid cooling plate 20 into the steam cavity of the condensation section 12, and providing a flow gap 18 between the liquid cooling plate 20 and the inner wall of the steam cavity, the steam in the steam cavity can pass through and continue to flow toward the tail end of the flat heat pipe 10, so that all flow channels of the liquid cooling plate 20 can contact with the steam and participate in heat exchange.

[0053] In some embodiments of the present invention, at least two groups of cylindrical tubes 15 are disposed on the flat heat pipe 10 , and at least two groups of liquid cooling plates 20 are sleeved on the at least two groups of cylindrical tubes 15 .

[0054] In some of the above-mentioned embodiments of the present invention, the liquid cooling plate 20 is arranged in a ring structure outside the cylindrical tube 15. Under the same spatial dimensions, the number of liquid cooling plates 20 can be greater, and the volume can be smaller, so that the heat can be more dispersed, and the heat can be easily discharged, which is more effective for the heat dissipation of higher-power CPUs.

[0055] Specifically, the liquid cooling plate 20 includes a second cold plate cover 28 and a plurality of second ribs 26 arranged in the second cold plate cover 28. The plurality of second ribs 26 are distributed in a circular array on the outside of the cylindrical tube 15. A second microchannel 27 is formed between two adjacent second ribs 26. The second cold plate cover 28 is connected to the cylindrical tube 15 and covers the outside of the second ribs 26.

[0056] In some embodiments of the present invention, the evaporation section 11 of the flat heat pipe 10 is provided with at least two evaporation ends 13 .

[0057] In some of the above-mentioned embodiments of the utility model, at least two evaporation ends 13 are provided on the evaporation section 11, and at least two evaporation ends 13 are used to be in close contact with the CPU in the server 40 to absorb and conduct heat, and then dissipate heat through the condensation section 12 and the liquid cooling plate 20.

[0058] In some embodiments of the utility model, the liquid supply mechanism 30 includes a condenser 31, a shunt pipe 32, a collecting pipe 33 and a pump body 34. The liquid cooling plate 20 is provided with a liquid inlet pipe 21 and a liquid outlet pipe 22. The liquid inlet pipe 21 is connected to the shunt pipe 32, and the liquid outlet pipe 22 is connected to the collecting pipe 33. The pump body 34, the condenser 31, the collecting pipe 33, the liquid cooling plate 20 and the shunt pipe 32 constitute a liquid circulation loop.

[0059] The utility model further provides a server 40 , comprising a cabinet 41 and the composite radiator as described above, wherein the flat heat pipe 10 extends from the inside of the cabinet 41 to the outside of the cabinet 41 , and at least two groups of liquid cooling plates 20 are arranged outside the cabinet 41 .

[0060] The utility model also provides a server 40, wherein the flat heat pipe 10 extends from the inside of the cabinet 41 to the outside of the cabinet 41, and at least two groups of liquid cooling plates 20 are arranged outside the cabinet 41. Even if the liquid cooling plate 20 leaks, it will not affect the electronic components inside the server 40, thereby greatly improving safety.

[0061] Embodiment 1:

[0062] The composite radiator provided by the utility model is as follows Figure 1-3 As shown, it includes a flat heat pipe 10, four groups of liquid cooling plates 20 and two groups of liquid supply mechanisms 30. The evaporation section 11 of the flat heat pipe 10 is provided with two evaporation ends 13, and the two evaporation ends 13 are arranged in a Y-shaped structure. The two evaporation ends 13 are in close contact with the CPU in the server 40 through the installation pressure plate 17 to absorb and conduct heat; and a thin layer of thermal conductive paste is applied between the evaporation end 13 and the CPU to reduce the contact thermal resistance; in order to avoid various electronic components in the server 40, the evaporation section 11 is bent.

[0063] The condensing section 12 of the flat heat pipe 10 extends to the outside of the server 40 cabinet 41 and is fixed by a condensing bracket 42. The condensing bracket 42 is connected to the server 40 cabinet 41 by bolts. The condensing section 12 of the flat heat pipe 10 is provided with two condensing ends 14, and the two condensing ends 14 are arranged in a Y-shaped structure. The four groups of liquid cooling plates 20 are arranged in pairs on the two condensing ends 14 of the condensing section 12. The two condensing ends 14 are used to distribute the heat discharged from the server 40 to the two condensing ends 14, and dissipate the heat through the four liquid cooling plates 20.

[0064] The two groups of liquid supply mechanisms 30 are respectively connected to the two liquid cooling plates 20 on the two condensing ends 14, so that the four liquid cooling plates 20 and the two groups of liquid supply mechanisms 30 respectively form four groups of liquid circulation loops. The four groups of liquid circulation loops can ensure the heat dissipation, and can ensure that when any circulation loop has a problem, the other loops work normally to ensure a certain amount of heat dissipation, and can also be repaired without stopping the machine when the problem is not solved in time.

[0065] It can be understood that two of the liquid cooling plates 20 are provided on the first condensation end 14 of the condensation section 12, and the two liquid cooling plates 20 are connected to the first group of the liquid supply mechanisms 30 to form two groups of liquid circulation loops; and two of the liquid cooling plates 20 are provided on the second condensation end 14, and the two liquid cooling plates 20 are connected to the second group of the liquid supply mechanisms 30 to form another two groups of liquid circulation loops.

[0066] Specifically, a liquid inlet pipe 21 and a liquid outlet pipe 22 are provided on the liquid cooling plate 20 , and both the liquid inlet pipe 21 and the liquid outlet pipe 22 are connected to the liquid supply mechanism 30 , so that the inside of the liquid cooling plate 20 and the liquid supply mechanism 30 form a liquid circulation loop.

[0067] More specifically, the liquid supply mechanism 30 includes a condenser 31, a shunt pipe 32, a collecting pipe 33 and a pump body 34. The liquid cooling plate 20 is provided with a liquid inlet pipe 21 and a liquid outlet pipe 22. The liquid inlet pipe 21 is connected to the shunt pipe 32, and the liquid outlet pipe 22 is connected to the collecting pipe 33. The pump body 34, the condenser 31, the collecting pipe 33, the liquid cooling plate 20 and the shunt pipe 32 constitute a liquid circulation loop.

[0068] Furthermore, the liquid cooling plate 20 includes a first cold plate cover body 23 and a plurality of first ribs 24 arranged in the first cold plate cover body 23, the plurality of first ribs 24 are arranged side by side and at intervals to form a plurality of first microchannels 25, and the plurality of first ribs 24 are fixed on the upper and lower surfaces of the condensation end 14, and the first cold plate cover body 23 is connected to the condensation end 14 to cover the first ribs 24.

[0069] In this further improvement, by directly fixing the first rib 24 on the upper and lower surfaces of the condensation end 14, two liquid circulation loops can cool and dissipate heat for the condensation end 14 at the same time, thereby increasing the heat dissipation area and achieving a better heat dissipation effect.

[0070] Preferably, the liquid cooling plate 20 is integrally formed with the flat plate heat pipe 10. The liquid cooling plate 20 is integrally formed with the flat plate heat pipe 10, which can eliminate the contact surface between the flat plate heat pipe 10 and the liquid cooling plate 20, reduce contact thermal resistance, and increase heat exchange efficiency.

[0071] Specifically, the condensing section 12 and the first microchannel 25 of the flat plate heat pipe 10 are extruded from aluminum or aluminum alloy, the cold plate cover is welded and sealed to the port of the flat plate heat pipe 10, and the sealed cavity is filled with phase change medium and maintained in a vacuum environment.

[0072] The utility model further provides a server 40 , comprising a cabinet 41 and the composite radiator as described above, wherein the flat heat pipe 10 extends from the inside of the cabinet 41 to the outside of the cabinet 41 , and at least two groups of liquid cooling plates 20 are arranged outside the cabinet 41 .

[0073] Embodiment 2:

[0074] The difference between this embodiment 2 and embodiment 1 is that: Figure 4 As shown, two groups of liquid cooling plates 20 are arranged on the condensing section 12 of the flat heat pipe 10, and the two groups of liquid cooling plates 20 are connected to the liquid supply mechanism 30 to form two groups of liquid circulation loops.

[0075] Each server 40 uses two flat plate heat pipes 10. Two groups of liquid cooling plates 20 are arranged on the condensing section 12 of each flat plate heat pipe 10. The two groups of liquid cooling plates 20 are respectively connected to two groups of liquid supply mechanisms 30 to form four groups of liquid circulation loops.

[0076] Embodiment 3:

[0077] The difference between this embodiment 3 and embodiment 1 is that: Figure 5 As shown, the condensing section 12 of the flat heat pipe 10 is provided with at least two groups of cylindrical tubes 15 , and at least two groups of liquid cooling plates 20 are sleeved on the at least two groups of cylindrical tubes 15 .

[0078] The liquid cooling plate 20 includes a second cooling plate cover 28 and a plurality of second convex ribs 26 disposed in the second cooling plate cover 28. The plurality of second convex ribs 26 are distributed in an annular array outside the cylindrical tube 15. A second microchannel 27 is formed between two adjacent second convex ribs 26. The second cooling plate cover 28 is connected to the cylindrical tube 15 and covers the outside of the second convex ribs 26. Each group of liquid cooling plates 20 is connected to a liquid supply mechanism 30 to form a group of liquid circulation loops.

[0079] The liquid cooling plate 20 is arranged in an annular structure outside the cylindrical tube 15. Under the same spatial dimensions, the number of liquid cooling plates 20 can be greater, and the volume can be smaller, so that the heat can be more dispersed and easily discharged, and the heat dissipation for a higher-power CPU is more effective; and the contact surface between the flat heat pipe 10 and the liquid cooling plate 20 can be eliminated, thereby reducing the contact thermal resistance and increasing the heat exchange efficiency.

[0080] Embodiment 4:

[0081] The difference between this embodiment 4 and embodiment 1 is that: Figure 6-7 As shown, two groups of insertion ports 16 are provided on the two condensation ends 14 of the flat heat pipe 10, and the two groups of liquid cooling plates 20 are embedded in the steam cavity of the condensation section 12 through the insertion ports 16, and a flow gap 18 is reserved between the liquid cooling plates 20 and the steam cavity, so that the steam in the steam cavity can pass through and continue to flow toward the tail end of the flat heat pipe 10, so as to achieve the effect that all flow channels of the liquid cooling plate 20 can contact with the steam and participate in heat exchange.

[0082] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A composite radiator, characterized in that: It includes a flat heat pipe, at least two groups of liquid cooling plates and at least one group of liquid supply mechanism, at least two groups of liquid cooling plates are connected to the condensing section of the flat heat pipe, and at least two groups of liquid cooling plates are connected to at least one group of liquid supply mechanism to form at least two groups of liquid circulation loops.

2. The composite radiator according to claim 1, characterized in that: At least two groups of the liquid cooling plates are respectively connected to at least two outer surfaces of the condensing section.

3. The composite radiator according to claim 1, characterized in that: At least two groups of insertion ports are arranged on the condensing section, the liquid cooling plate is embedded in the steam cavity of the condensing section through the insertion ports, and a flow gap is arranged between the liquid cooling plate and the inner wall of the steam cavity.

4. The composite heat sink according to claim 1, characterized in that: The liquid cooling plate includes a first cold plate cover and a plurality of first convex ribs arranged in the first cold plate cover. The plurality of first convex ribs are arranged side by side and at intervals, and a first microchannel is formed between two adjacent first convex ribs.

5. The composite heat sink according to claim 4, characterized in that: A plurality of the first convex ribs are arranged on the condensing section, and the first cold plate cover is connected to the condensing section and covers the first convex ribs.

6. The composite heat sink according to claim 1, characterized in that: At least two groups of cylindrical tubes are arranged on the flat heat pipe, and at least two groups of liquid cooling plates are sleeved on the at least two groups of cylindrical tubes.

7. The composite heat sink according to claim 6, characterized in that: The liquid cooling plate includes a second cold plate cover body and a plurality of second convex ribs arranged in the second cold plate cover body, wherein the plurality of second convex ribs are distributed in a circular array on the outside of the cylindrical tube, and a second microchannel is formed between two adjacent second convex ribs. The second cold plate cover body is connected to the cylindrical tube and covers the outside of the second convex ribs.

8. The composite radiator according to any one of claims 1 to 7, characterized in that: The condensation section of the flat plate heat pipe is provided with at least two condensation ends, and at least two groups of the liquid cooling plates are arranged on at least two condensation ends of the condensation section.

9. The composite radiator according to any one of claims 1 to 7, characterized in that: The evaporation section of the flat plate heat pipe is provided with at least two evaporation ends.

10. The composite radiator according to any one of claims 1 to 7, characterized in that: At least two groups of the liquid cooling plates are integrally formed with the condensing section of the flat plate heat pipe.

11. The composite radiator according to any one of claims 1 to 7, characterized in that: The liquid supply mechanism includes a condenser, a shunt pipe, a collecting pipe and a pump body. The liquid cooling plate is provided with a liquid inlet pipe and a liquid outlet pipe. The liquid inlet pipe is connected to the shunt pipe, and the liquid outlet pipe is connected to the collecting pipe. The pump body, the condenser, the collecting pipe, the liquid cooling plate and the shunt pipe constitute a liquid circulation loop.

12. A server, characterized in that: It comprises a cabinet and the composite radiator as claimed in any one of claims 1 to 11, wherein the flat heat pipe extends from the inside of the cabinet to the outside of the cabinet, and at least two groups of liquid cooling plates are arranged outside the cabinet.

Images