Heat dissipation structure of immersed liquid cooling data center

Abstract

The utility model discloses a heat dissipation structure of an immersed liquid cooling data center, which comprises a server cabinet and a heat exchanger, a liquid inlet of the server cabinet is communicated with a liquid outlet of the heat exchanger, a liquid outlet of the server cabinet is communicated with a liquid inlet of the heat exchanger, a circulating pump is arranged between the liquid outlet of the server cabinet and the liquid inlet of the heat exchanger, and a cooling medium is accommodated in the server cabinet. The server is immersed in the cooling medium, and the circulating pump drives the cooling medium to flow between the server cabinet and the heat exchanger. According to the heat dissipation structure of the immersed liquid cooling data center, the server of the data center is directly immersed in the cooling medium such as fluorinated oil, silicone oil or mineral oil, the cooling medium circulates to take away heat generated by the server of the data center, the heat in the cooling medium is absorbed by the heat exchanger, and the heat dissipation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of data center heat dissipation, and more specifically, to a heat dissipation structure for an immersion liquid-cooled data center. Background Art

[0002] With the development of autonomous driving, intelligent production, big data, etc., in order to reduce the transmission delay of data, it is necessary to store and calculate data nearby, and at this time, it is necessary to build and deploy more small data centers. Traditional data centers or cabinets are air-cooled, and it is necessary to deploy air-cooled air conditioners to cool the servers. Air cooling belongs to indirect heat dissipation, with low heat exchange efficiency, high noise, and dust in the air reducing the lifespan of the servers.

[0003] Patent document CN 219981399 U discloses an energy-saving cooling device for a data center, including a heat absorber, a condenser, a gaseous medium pipeline, and a liquid medium pipeline. The heat absorber is arranged at the heat source in the cabinet, and the heat absorber is provided with a medium inlet, a gas medium outlet, and a liquid medium outlet. The inlet end of the gaseous medium pipeline is communicated with the gas medium outlet; the condenser is communicated with the outlet end of the gaseous medium pipeline and is suitable for being installed outside the computer room. The first liquid inlet end of the liquid medium pipeline is communicated with the liquid medium outlet, the second liquid inlet end of the liquid medium pipeline is communicated with the liquid outlet end of the condenser, and the first liquid outlet end of the liquid medium pipeline is communicated with the medium inlet.

[0004] When the prior art cools a data center, even when using a liquid medium for cooling, it is to cool the air in the cabinet, and the liquid medium does not directly contact the server. In the indirect cooling process, the heat dissipation efficiency is low and cannot meet the heat dissipation requirements of the data center.

[0005] Therefore, it is necessary to propose a heat dissipation structure for an immersion liquid-cooled data center to solve the problems existing in the prior art. Summary of the Utility Model

[0006] A series of simplified concepts are introduced in the Summary of the Utility Model part, which will be further detailed in the Detailed Implementation part. The Summary of the Utility Model part of the present utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0007] To solve the above problems, the present utility model provides a heat dissipation structure for an immersion liquid-cooled data center, including a server cabinet and a heat exchanger. The liquid inlet of the server cabinet is communicated with the liquid outlet of the heat exchanger, and the liquid outlet of the server cabinet is communicated with the liquid inlet of the heat exchanger and is provided with a circulation pump. The server cabinet contains a cooling medium, the server is immersed in the cooling medium, and the circulation pump drives the cooling medium to flow between the server cabinet and the heat exchanger.

[0008] Preferably, the liquid inlet of the server cabinet is communicated with the liquid outlet of the heat exchanger through a cooling medium supply pipe, and the liquid outlet of the server cabinet is communicated with the liquid inlet of the heat exchanger through a cooling medium return pipe. A filter and an automatic exhaust valve are arranged on the cooling medium return pipe.

[0009] Preferably, pressure sensors and temperature sensors are arranged on both the cooling medium supply pipe and the cooling medium return pipe.

[0010] Preferably, a condenser is further included. The refrigerant outlet of the heat exchanger is connected to the inlet of the condenser through a refrigerant return pipe, and a compressor is connected to the refrigerant return pipe;

[0011] The refrigerant inlet of the heat exchanger is connected to the outlet of the condenser through a refrigerant supply pipe, and an electronic expansion valve is connected to the refrigerant supply pipe.

[0012] Preferably, the heat exchanger is a plate heat exchanger.

[0013] Preferably, the cooling medium is fluorinated oil, silicone oil or mineral oil.

[0014] Preferably, the server cabinet includes a cabinet body and an upper cover. First sliding grooves are symmetrically formed on the outer walls of the left and right sides of the cabinet body. Connecting plates are symmetrically arranged on the left and right sides of the upper cover. Sliders are fixedly arranged at positions on the lower parts of the opposite side surfaces of the two connecting plates corresponding to the first sliding grooves, and the sliders are slidably arranged in the first sliding grooves.

[0015] Preferably, circular grooves are formed above the first sliding grooves on the outer walls of the left and right sides of the cabinet body. The circular grooves are communicated with the first sliding grooves. Disks are rotatably arranged in the circular grooves. Second sliding grooves are formed on the end surfaces of the disks away from the cabinet body. The shapes of the second sliding grooves are the same as those of the first sliding grooves;

[0016] Hydraulic cylinders are fixedly arranged at the lower parts of the first sliding grooves. T-shaped sliders are fixedly arranged on the end surfaces of the piston rods of the hydraulic cylinders. The upper and lower surfaces of the sliders are arc surfaces adapted to the circumferential surfaces of the circular grooves. First T-shaped sliding grooves are formed on the lower surfaces of the sliders along the arc direction, and the T-shaped sliders are slidably arranged in the first T-shaped sliding grooves;

[0017] Second T-shaped sliding grooves are formed on the circumferential surfaces of the disks along the circumferential direction at positions corresponding to the first T-shaped sliding grooves. The shapes of the second T-shaped sliding grooves are the same as the cross-sections of the first T-shaped sliding grooves.

[0018] Preferably, permanent magnets are fixedly arranged on the front and rear inner circumferential walls of the circular grooves, and electromagnetic coils are arranged at positions on the sliders corresponding to the permanent magnets.

[0019] Preferably, the upper cover is made of a polymer material, and a sealing strip is arranged at a position on the lower surface of the upper cover corresponding to the upper end surface of the side wall of the cabinet body.

[0020] Compared with the prior art, the utility model has at least the following beneficial effects:

[0021] For the heat dissipation structure of the immersion liquid-cooled data center of the utility model, the servers of the data center are directly immersed in a cooling medium such as fluorinated oil, silicone oil or mineral oil, and the cooling medium circulates to take away the heat generated by the servers of the data center and uses a heat exchanger to absorb the heat in the cooling medium, with high heat dissipation efficiency.

[0022] For the heat dissipation structure of the immersion liquid-cooled data center of the utility model, other advantages, objectives and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0024] Figure 1 is an exploded schematic view of the heat dissipation structure of the immersion liquid-cooled data center disclosed by the utility model;

[0025] Figure 2 is a schematic structural view of the cabinet disclosed by the utility model;

[0026] Figure 3 is a schematic structural view of the disc disclosed by the utility model;

[0027] Figure 4 is a schematic structural view of the upper cover disclosed by the utility model;

[0028] Figure 5 is a schematic structural view of the slider disclosed by the utility model;

[0029] Figure 6 is a schematic structural view of the T-shaped slider connected between the T-shaped chute and the piston rod disclosed by the utility model;

[0030] Figure 7 is a schematic structural view of the server cabinet disclosed by the utility model;

[0031] Figure 8 is a schematic structural view of the upper cover of the server cabinet rotated by a certain angle disclosed by the utility model;

[0032] Figure 9 is a schematic structural view of a permanent magnet arranged in a circular groove disclosed by the utility model;

[0033] Figure 10This is a schematic right view structure diagram of the cabinet disclosed by the present utility model. Detailed implementation manners

[0034] The following further elaborates on the present utility model in conjunction with the attached drawings and embodiments, so that those skilled in the art can implement it according to the text of the specification.

[0035] It should be understood that terms such as "having", "comprising", and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0036] As Figure 1 shown, a heat dissipation structure of an immersion liquid cooling data center includes a server cabinet 1 and a heat exchanger 2. There is a connection between the liquid inlet of the server cabinet 1 and the liquid outlet of the heat exchanger 2, and there is a connection between the liquid outlet of the server cabinet 1 and the liquid inlet of the heat exchanger 2 with a circulation pump 3 provided. The server cabinet 1 houses a cooling medium 4, and the server 100 is immersed in the cooling medium 4. The circulation pump 3 drives the cooling medium 4 to flow between the server cabinet 1 and the heat exchanger 2.

[0037] Further, there is a connection between the liquid inlet of the server cabinet 1 and the liquid outlet of the heat exchanger 2 through a cooling medium supply pipe 5, and there is a connection between the liquid outlet of the server cabinet 1 and the liquid inlet of the heat exchanger 2 through a cooling medium return pipe 6. A filter 7 and an automatic exhaust valve 8 are provided on the cooling medium return pipe 6.

[0038] Further, pressure sensors and temperature sensors are provided on both the cooling medium supply pipe 5 and the cooling medium return pipe 6.

[0039] Further, it further includes a condenser 9. There is a connection between the refrigerant outlet of the heat exchanger 2 and the inlet of the condenser 9 through a refrigerant return pipe, and a compressor 10 is connected to the refrigerant return pipe;

[0040] There is a connection between the refrigerant inlet of the heat exchanger 2 and the outlet of the condenser 9 through a refrigerant supply pipe, and an electronic expansion valve 11 is connected to the refrigerant supply pipe.

[0041] Further, the heat exchanger 2 is a plate heat exchanger.

[0042] Further, the cooling medium 4 is fluorinated oil, silicone oil or mineral oil.

[0043] Working principle of the above technical solution: The heat dissipation structure of the immersion liquid-cooled data center includes a server cabinet 1 and a heat exchanger 2. The server cabinet 1 houses a cooling medium 4, and the cooling medium 4 is an insulating fluorinated oil, silicone oil or mineral oil. Multiple servers 100 of the data center are immersed in the cooling medium 4, and the hardware of the servers 100 is in direct contact with the cooling medium 4. The cooling medium 4 directly absorbs the heat generated by the hardware of the servers 100. Under the action of a circulation pump, the cooling medium 4 circulates between the server cabinet 1 and the heat exchanger 2, and the heat in the cooling medium 4 is dissipated in the heat exchanger 2. Pressure sensors and temperature sensors are provided on both the cooling medium supply pipe 5 and the cooling medium return pipe 6 to monitor the temperature and pressure in the cooling medium supply pipe 5 and the cooling medium return pipe 6.

[0044] A filter 7 and an automatic exhaust valve 8 are provided on the cooling medium return pipe 6. The filter 7 is used to filter impurities in the cooling medium 4, and the automatic exhaust valve 8 can automatically discharge the air in the cooling medium.

[0045] The other end of the heat exchanger 2 is connected to a condenser 9. The refrigerant outlet of the heat exchanger 2 is connected to the inlet of the condenser 9 through a refrigerant return pipe, and a compressor 10 is connected to the refrigerant return pipe. The refrigerant inlet of the heat exchanger 2 is connected to the outlet of the condenser 9 through a refrigerant supply pipe. The refrigerant outlet of the heat exchanger 2 is communicated with the intake port of the compressor, and the outlet of the compressor is communicated with the inlet of the condenser 9. An electronic expansion valve 11 is connected to the refrigerant supply pipe. The heat exchange between the heat exchanger 2 and the condenser 9 is the same as the heat exchange principle of the air-conditioning system refrigeration, and will not be elaborated here.

[0046] A fan can be installed on one side of the heat dissipation fins of the condenser to improve the heat dissipation speed of the heat dissipation fins of the condenser.

[0047] The servers 100 include multiple storage servers, computing servers, switches, etc. The multiple servers are arranged in parallel at intervals. The servers are longitudinally installed on server brackets to keep the servers stable. An ODF cable management rack and a PDU power distribution unit are fixedly arranged on the upper part of the service cabinet 1. The ODF cable management rack and the PDU power distribution unit are located above the liquid level of the cooling medium and are not immersed in the cooling medium.

[0048] Beneficial effects of the above technical solution:

[0049] For the heat dissipation structure of the immersion liquid-cooled data center described in the present utility model, the servers of the data center are directly immersed in a cooling medium such as fluorinated oil, silicone oil or mineral oil. The cooling medium circulates to take away the heat generated by the servers of the data center and uses the heat exchanger to absorb the heat in the cooling medium, with high heat dissipation efficiency.

[0050] In one embodiment, as Figures 2 - 9As shown in the figure, the server cabinet 1 includes a cabinet body 12 and an upper cover 13. First sliding grooves 14 are symmetrically formed on the outer walls on the left and right sides of the cabinet body 12. Connecting plates 15 are symmetrically arranged on the left and right sides of the upper cover 13. Sliders 16 are fixedly arranged at positions on the lower parts of the opposite sides of the two connecting plates 15 corresponding to the first sliding grooves 14. The sliders 16 are slidably arranged in the first sliding grooves 14.

[0051] Furthermore, circular grooves 17 are formed above the first sliding grooves 14 on the outer walls on the left and right sides of the cabinet body 12. The circular grooves 17 communicate with the first sliding grooves 14. Disks 18 are rotatably arranged in the circular grooves 17. Second sliding grooves 19 are formed on the end faces of the disks 18 away from the cabinet body 12. The shapes of the second sliding grooves 19 are the same as those of the first sliding grooves 14.

[0052] Hydraulic cylinders 20 are fixedly arranged at the lower parts of the first sliding grooves 14. T-shaped sliders 22 are fixedly arranged on the end faces of the piston rods 21 of the hydraulic cylinders 20. The upper and lower surfaces of the sliders 16 are arc surfaces adapted to the circumferential surfaces of the circular grooves 17. First T-shaped sliding grooves 23 are formed on the lower surfaces of the sliders 16 along the arc direction. The T-shaped sliders 22 are slidably arranged in the first T-shaped sliding grooves 23.

[0053] Second T-shaped sliding grooves 24 are formed on the circumferential surfaces of the disks 18 at positions corresponding to the first T-shaped sliding grooves 23 along the circumferential direction. The shapes of the second T-shaped sliding grooves 24 are the same as the cross-sections of the first T-shaped sliding grooves 23.

[0054] Furthermore, permanent magnets 26 are fixedly arranged on the front and back of the inner circumferential walls of the circular grooves 17. Electromagnetic coils are arranged at positions on the sliders 16 corresponding to the permanent magnets 26.

[0055] Furthermore, the upper cover is made of a polymer material. Sealing strips 25 are arranged at positions on the lower surface of the upper cover 13 corresponding to the upper end faces of the side walls of the cabinet body 12.

[0056] The working principle of the above technical solution:

[0057] To prevent impurities from entering the cooling medium 4 contained in the server cabinet 1 and to prevent the cooling medium from overflowing the server cabinet 1 during the cooling medium circulation process, the server cabinet 1 is set as a sealed structure. The server cabinet 1 includes a cabinet body 12 and an upper cover 13. A sealing strip 25 is provided at a position on the lower surface of the upper cover 13 corresponding to the upper end surface of the side wall of the cabinet body 12. The upper cover 13 covers the cabinet body 12, and the sealing strip 25 is pressed tightly on the upper end surface of the side wall of the cabinet body 12 to seal the cabinet body 12. In the sealed state, the piston rod 21 of the hydraulic cylinder 20 is in the retracted and locked state, keeping the upper cover 13 stable and immovable. When the upper cover needs to be opened, the piston rod 21 of the hydraulic cylinder 20 extends. The piston rod 21 drives the slider 16 to move upward by pushing the T-shaped slider 22, thereby driving the upper cover to move upward by driving the connecting plate 15. When the slider 16 slides into the second chute 19 of the disc 18, the piston rod of the hydraulic cylinder 20 stops. At this time, the power supply of the electromagnetic coil in the slider 16 is turned on, causing the electromagnetic coil to generate a rotating magnetic field. The rotating magnetic field is subjected to force in the magnetic field formed by the permanent magnet 26, causing the electromagnetic coil to rotate, thereby driving the slider 16 to rotate, and driving the entire upper cover to rotate through the connecting plate 15, so that the upper cover 13 rotates away from the position of the upper opening of the cabinet body 12 (as Figure 8 shown), and the power supply is cut off, thus facilitating the taking and placing of the server in the cabinet body 12 or inspection and modification, etc. The first T-shaped chute 23 on the slider 16 is opposite to the second T-shaped chute 24 on the disc 18. During the rotation of the connecting plate 15, the T-shaped slider 22 can slide from the first T-shaped chute 23 into the second T-shaped chute 24.

[0058] After the operation in the cabinet body 12 is completed and the upper cover needs to be closed, the power supply of the electromagnetic coil is turned on again, and the slider 16 and the connecting plate 15 are driven to rotate in the reverse direction by the electromagnetic coil, causing the upper cover to return to the vertical position (as Figure 7 shown). How to control the circuit to make the electromagnetic coil rotate forward and backward in the magnetic field of the permanent magnet 26 has the same principle as that of a forward and reverse motor, which will not be elaborated here.

[0059] After the upper cover 13 returns to the vertical position, the hydraulic cylinder 20 is started to retract the piston rod 21. The piston rod 21 drives the slider 16 to descend through the T-shaped slider 22, and drives the upper cover to move downward through the connecting plate 15 and cover the cabinet body 12, so that the sealing strip 25 is pressed tightly on the upper end surface of the side wall of the cabinet body 12 to play a sealing role. At this time, the piston rod 21 of the hydraulic cylinder 20 stops and locks. The hydraulic cylinder locking device is common knowledge and will not be elaborated here. The hydraulic cylinder 20 can select a hydraulic cylinder with appropriate size and pressure in general components to suit the weight of the cover body.

[0060] A plurality of permanent magnets 26 can be fixedly arranged along the circumferential direction on the inner circumferential wall of the circular groove 17.

[0061] In order to ensure that the upper cover 13 can stop at a set position after rotation, a first positioning block 27 and a second positioning block 28 are provided on the right outer wall of the cabinet body 12. The second positioning block is used to block the connecting plate 15 after the upper cover rotates by a set angle to prevent the upper cover from rotating excessively. The first positioning block 27 is used to limit the position when the upper cover rotates back and the connecting plate 15 reaches the vertical position, preventing the upper cover from rotating back too much and causing the upper cover to be unable to move downward. The same first positioning block 27 and second positioning block 28 can also be provided at positions on the left outer wall of the cabinet body 12 opposite to the right outer wall.

[0062] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0064] Although the embodiments of the present invention have been disclosed above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples described herein.

Claims

1. A heat dissipation structure of an immersion liquid cooling data center, characterized in that: The invention comprises a server cabinet (1) and a heat exchanger (2); the liquid inlet of the server cabinet (1) is connected to the liquid outlet of the heat exchanger (2); the liquid outlet of the server cabinet (1) is connected to the liquid inlet of the heat exchanger (2) and a circulating pump (3) is arranged; the server cabinet (1) contains a cooling medium (4); the server (100) is immersed in the cooling medium (4); and the circulating pump (3) drives the cooling medium (4) to flow between the server cabinet (1) and the heat exchanger (2).

2. The heat dissipation structure of the immersion liquid cooling data center according to claim 1, characterized in that: The liquid inlet of the server cabinet (1) and the liquid outlet of the heat exchanger (2) are connected via a cooling medium supply pipe (5), and the liquid outlet of the server cabinet (1) and the liquid inlet of the heat exchanger (2) are connected via a cooling medium return pipe (6), and a filter (7) and an automatic exhaust valve (8) are provided on the cooling medium return pipe (6).

3. The heat dissipation structure of the immersion liquid cooling data center according to claim 2, characterized in that: A pressure sensor and a temperature sensor are provided on the cooling medium supply pipe (5) and the cooling medium return pipe (6).

4. The heat dissipation structure of the immersion liquid cooling data center according to claim 3, characterized in that: It also includes a condenser (9), the refrigerant outlet of the heat exchanger (2) and the inlet of the condenser (9) are connected via a refrigerant return pipe, and the refrigerant return pipe is connected to a compressor (10); The refrigerant inlet of the heat exchanger (2) and the outlet of the condenser (9) are connected via a refrigerant supply pipe, and the refrigerant supply pipe is connected to an electronic expansion valve (11).

5. The heat dissipation structure of the immersion liquid cooling data center according to claim 4, characterized in that: The heat exchanger (2) is a plate heat exchanger.

6. The heat dissipation structure of the immersion liquid cooling data center according to claim 5, characterized in that: The cooling medium (4) is fluorinated oil, silicone oil or mineral oil.

7. The heat dissipation structure of the immersion liquid cooling data center according to claim 1, characterized in that: The server cabinet (1) comprises a cabinet body (12) and an upper cover (13); first slide grooves (14) are symmetrically provided on the outer walls on the left and right sides of the cabinet body (12); connecting plates (15) are symmetrically provided on the left and right sides of the upper cover (13); sliding blocks (16) are fixedly provided at the positions opposite to the first slide grooves (14) at the lower parts of the opposite sides of the two connecting plates (15); and the sliding blocks (16) are slidably provided in the first slide grooves (14).

8. The heat dissipation structure of the immersion liquid cooling data center according to claim 7, characterized in that: A circular groove (17) is provided above the first slide groove (14) on the outer walls on the left and right sides of the cabinet (12), the circular groove (17) is connected to the first slide groove (14), a disc (18) is rotatably arranged in the circular groove (17), a second slide groove (19) is provided on the end surface of the disc (18) away from the cabinet (12), and the second slide groove (19) has the same shape as the first slide groove (14); A hydraulic cylinder (20) is fixedly arranged at the lower part of the first slide groove (14); a T-shaped slide block (22) is fixedly arranged on the end surface of the piston rod (21) of the hydraulic cylinder (20); the upper and lower surfaces of the slide block (16) are arc surfaces adapted to the circumferential surface of the circular groove (17); a first T-shaped slide groove (23) is provided on the lower surface of the slide block (16) along the arc direction; and the T-shaped slide block (22) is slidably arranged in the first T-shaped slide groove (23); A second T-shaped chute (24) is provided on the circumferential surface of the disc (18) at a position corresponding to the first T-shaped chute (23) along the circumferential direction, and the shape of the second T-shaped chute (24) is the same as the cross section of the first T-shaped chute (23).

9. The heat dissipation structure of the immersion liquid cooling data center according to claim 8, characterized in that: Permanent magnets (26) are fixedly arranged on the inner circumferential wall of the circular groove (17) at the front and rear, and electromagnetic coils are arranged at positions corresponding to the permanent magnets (26) in the slider (16).

10. The heat dissipation structure of the immersion liquid cooling data center according to claim 9, characterized in that: The upper cover is made of high molecular polymer material, and a sealing strip (25) is arranged on the lower surface of the upper cover (13) at a position corresponding to the upper end surface of the side wall of the cabinet (12).

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