Immersion liquid cooling device and liquid cooling system

Abstract

The embodiment of the present disclosure provides an immersion liquid cooling device and a liquid cooling system. The liquid cooling device includes: a cabinet, including a first cavity and a second cavity integrated on the outer wall of the first cavity, the first cavity is used to accommodate electronic equipment to be cooled, and the outer wall is provided with a through hole for a first cooling liquid to circulate between the first cavity and the second cavity; and a heat exchange module, suitable for being inserted into the second cavity through the opening of the second cavity, the heat exchange module includes a cooling liquid drive component and a plate-fin heat exchanger, the cooling liquid drive component is used to drive the first cooling liquid, and the plate-fin heat exchanger is used to cool the first cooling liquid driven by the cooling liquid drive component with the second cooling liquid, wherein when the heat exchange module is inserted into the second cavity, the cooling liquid drive component is located above the plate-fin heat exchanger and can be drawn out of the second cavity when the plate-fin heat exchanger is kept in the second cavity.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the technical field of electronic equipment cooling, and more particularly, to an immersion liquid cooling device and a liquid cooling system including the immersion liquid cooling device. Background Art

[0002] With the rapid development of the Internet, artificial intelligence, cloud computing and high-performance computing, data centers have not only driven tremendous changes in corporate business, but also greatly improved people's quality of life. At present, data centers have been officially included in the new infrastructure. As a result, data centers have expanded from serving some companies to serving the entire society, becoming a new infrastructure.

[0003] With the advent of the big data era, data is growing at an unimaginable rate. The processing, storage and transmission of massive data will lead to a sharp increase in the power consumption of IT equipment. Therefore, the heat dissipation of IT equipment has become one of the great challenges facing data centers. Traditional data centers usually use air cooling solutions, but this solution has low heat exchange efficiency and cannot meet the needs of efficient heat dissipation of electronic information equipment.

[0004] In order to solve the heat dissipation problem of high-power IT equipment, data centers have begun to adopt liquid cooling technology. In the current data centers that adopt liquid cooling solutions, conventional immersion liquid cooling systems are generally composed of large cabinets equipped with one or more cold liquid distribution units (CDU). However, this conventional immersion liquid cooling system has many problems. First, the cabinets of conventional immersion liquid cooling systems are large in size and difficult to operate and maintain. Second, conventional immersion liquid cooling systems must be equipped with one or more cold liquid distribution units, making the system relatively complex in overall architecture. Third, conventional immersion liquid cooling systems have poor adaptability to IT equipment. Fourth, conventional immersion liquid cooling systems have a large demand for cooling liquid and high costs.

[0005] Therefore, a need exists for improved data center liquid cooling solutions. Summary of the invention

[0006] An object of the present disclosure is to provide an immersion liquid cooling device and a liquid cooling system including the immersion liquid cooling device, so as to at least partially solve the above problems.

[0007] In a first aspect of the present disclosure, an immersion liquid cooling device is provided, comprising: a cabinet, the cabinet comprising a first cavity and a second cavity integrated on an outer wall of the first cavity, the first cavity being used to accommodate electronic equipment to be cooled, the outer wall being provided with through holes for a first cooling liquid to circulate between the first cavity and the second cavity; and a heat exchange module, suitable for being inserted into the second cavity through an opening of the second cavity, the heat exchange module comprising a cooling liquid drive assembly and a plate-fin heat exchanger, the cooling liquid drive assembly being used to drive the first cooling liquid, the plate-fin heat exchanger being used to cool the first cooling liquid driven by the cooling liquid drive assembly with a second cooling liquid, wherein when the heat exchange module is inserted into the second cavity, the cooling liquid drive assembly is located above the plate-fin heat exchanger and can be drawn out of the second cavity when the plate-fin heat exchanger is maintained in the second cavity.

[0008] In the embodiment according to the present disclosure, since the cabinet and the heat exchange module are integrated together, the entire system does not need to be equipped with an additional cold liquid distribution unit, which is very flexible and convenient. In addition, since the heat exchange module adopts a modular design, it is easy to assemble and maintain. In addition, compared with the plate-fin heat exchanger, the operation and maintenance requirements of the coolant drive assembly in the heat exchange module are higher. Therefore, by arranging the coolant drive assembly above the plate-fin heat exchanger, the coolant drive assembly can be pulled out of the cabinet alone, which facilitates the maintenance of the coolant drive assembly and shortens the maintenance time of the coolant drive assembly.

[0009] In some embodiments, the coolant drive assembly includes a bracket, a plurality of circulation pumps and a connecting assembly, wherein the plurality of circulation pumps and the connecting assembly are supported by the bracket, and the connecting assembly includes a liquid flow channel for guiding the first coolant from the plurality of circulation pumps to the plate-fin heat exchanger, and the circulation pump outlets of the plurality of circulation pumps are arranged correspondingly to the flow channel inlet of the liquid flow channel of the connecting assembly. In such an embodiment, by providing a plurality of circulation pumps and using a connecting assembly to guide the first coolant, in the event of a failure of some of the circulation pumps, the remaining circulation pumps in the coolant drive assembly can still drive the first coolant to circulate effectively between the two cavities, thereby improving the reliability of the heat exchange module.

[0010] In some embodiments, the plate-fin heat exchanger includes an internal channel for the first coolant from the connection assembly to pass through, the internal channel having a channel inlet and a channel outlet located on opposite sides of the plate-fin heat exchanger, the channel inlet being arranged corresponding to the channel outlet of the liquid flow channel of the connection assembly. In such an embodiment, when the coolant drive assembly is inserted into the second cavity, the channel outlet on the connection assembly can be substantially aligned with the channel inlet on the plate-fin heat exchanger, thereby ensuring that the first coolant from the circulation pump is efficiently cooled by the plate-fin heat exchanger.

[0011] In some embodiments, the flow channel outlet of the connection assembly and the channel inlet of the plate-fin heat exchanger have rectangular shapes, respectively. In such embodiments, the rectangular flow channel outlet and channel inlet are easy to align.

[0012] In some embodiments, the size of the flow channel outlet of the connecting assembly is smaller than the size of the channel inlet of the plate-fin heat exchanger. In such an embodiment, since the size of the flow channel outlet is smaller than the size of the channel inlet, the first coolant flowing out of the connecting assembly can basically enter the internal channel of the plate-fin heat exchanger, thereby improving the cooling performance of the heat exchange module.

[0013] In some embodiments, the plate-fin heat exchanger further comprises an operating member disposed adjacent to the channel inlet for withdrawing the plate-fin heat exchanger from the second cavity. In such an embodiment, the plate-fin heat exchanger can be easily withdrawn from the second cavity by pulling the operating member.

[0014] In some embodiments, the operating member comprises a pair of lifting rings.

[0015] In some embodiments, the bracket includes a first support portion and a second support portion, the plurality of circulating pumps and the connection assembly are supported by the second support portion, wherein when the heat exchange module is inserted into the second cavity, the first support portion covers the opening of the second cavity. In such an embodiment, the cabinet can reliably support the coolant drive assembly through the first support portion, and the first support portion can prevent leakage of the first coolant in the second cavity.

[0016] In some embodiments, a sealing ring is provided on the side of the first support portion facing the second cavity, wherein when the heat exchange module is inserted into the second cavity, the first support portion and the second cavity are sealed by the sealing ring. In such an embodiment, the use of the sealing ring can improve the sealing performance between the first support portion and the second cavity, and further reduce the leakage of the first coolant in the second cavity.

[0017] In some embodiments, a display screen is provided on a side of the first support portion facing away from the second cavity. In such an embodiment, the state of the circulating pump and the first coolant can be observed in real time through the display screen, so that the circulating pump can be maintained when the circulating pump operates abnormally.

[0018] In some embodiments, a handle is provided on a side of the first support portion facing away from the second cavity. In such an embodiment, the coolant drive assembly can be conveniently pulled out of the second cavity or inserted into the second cavity by grasping the handle.

[0019] In some embodiments, a filter is provided at the inlet of the circulation pumps of the plurality of circulation pumps. In such an embodiment, the first cooling liquid entering the circulation pump can be filtered to prevent impurities from entering the pump body and damaging the circulation pump.

[0020] In some embodiments, the plurality of circulation pumps number from three to eight.

[0021] In some embodiments, the through holes include a first group of through holes and a second group of through holes, the second group of through holes being closer to the opening of the second cavity than the first group of through holes, wherein when the heat exchange module is inserted into the second cavity, the coolant drive assembly is adjacent to the second group of through holes, and the plate-fin heat exchanger is adjacent to the first group of through holes. In such an embodiment, by arranging the coolant drive assembly adjacent to the second group of through holes, rapid circulation of the first coolant between the second cavity and the first cavity can be achieved. In addition, by arranging the plate-fin heat exchanger adjacent to the first group of through holes, the first coolant cooled by the plate-fin heat exchanger can flow into the first cavity in a timely manner via the first group of through holes.

[0022] In some embodiments, the coolant drive assembly further comprises a liquid occupancy block, wherein when the heat exchange module is inserted into the second cavity, the liquid occupancy block can be at least partially immersed in the first coolant in the second cavity. In such an embodiment, when the heat exchange module is inserted into the second cavity, the liquid occupancy block can displace the volume of the first coolant, thereby reducing the amount of the first coolant required in the cabinet and reducing the overall cost.

[0023] In some embodiments, the cabinet further comprises an external frame and a top cover, wherein the external frame is arranged around the first cavity and the second cavity, and the top cover is rotatably connected to the external frame and can be switched between a closed state that closes the first cavity and an open state that opens the first cavity. In such an embodiment, by using the top cover to close the first cavity, leakage of the first cooling liquid in the first cavity can be reduced, and external contaminants can be prevented from entering the first cavity.

[0024] In some embodiments, a sealing ring is provided on a side of the top cover facing the first cavity, wherein when the top cover is in the closed state, the top cover and the first cavity are sealed by the sealing ring. In such an embodiment, the use of the sealing ring can improve the sealing performance between the top cover and the first cavity, and further reduce the leakage of the first coolant in the first cavity.

[0025] In some embodiments, the cabinet further comprises a hydraulic drive device, the hydraulic drive device being connected between the outer frame and the top cover to drive the top cover to switch between the closed state and the open state. In such an embodiment, the hydraulic drive device can be used to conveniently open or close the top cover.

[0026] In some embodiments, the first cooling liquid includes a fluorinated liquid or a mineral oil, and / or the second cooling liquid includes deionized water.

[0027] In a second aspect of the present disclosure, a liquid cooling system is provided, comprising a plurality of immersion liquid cooling devices arranged side by side, wherein each of the plurality of immersion liquid cooling devices is any one of the immersion liquid cooling devices according to the first aspect of the present disclosure.

[0028] It should be understood that the content described in this content section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0030] Figure 1 A schematic structural diagram of an immersion liquid cooling device according to an embodiment of the present disclosure is shown;

[0031] Figure 2 A schematic structural diagram of a cabinet according to an embodiment of the present disclosure is shown;

[0032] Figure 3 A schematic structural diagram of an outer wall of a first cavity for integrating a second cavity according to an embodiment of the present disclosure is shown;

[0033] Figure 4 A schematic structural diagram of a heat exchange module according to an embodiment of the present disclosure is shown;

[0034] Figure 5 A schematic structural diagram of a coolant drive assembly according to an embodiment of the present disclosure is shown;

[0035] Figure 6 A schematic structural diagram of a plate-fin heat exchanger according to an embodiment of the present disclosure is shown; and

[0036] Figure 7 A schematic structural diagram of a liquid cooling system according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0038] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0039] As described above, conventional immersion liquid cooling systems have many problems, such as large size, complex structure, inconvenient assembly, difficult operation and maintenance, poor reliability, etc. The embodiments of the present disclosure provide an immersion liquid cooling device with an internally integrated plate-fin heat exchanger and a liquid cooling system including the immersion liquid cooling device, so as to reduce the difficulty of operation and maintenance, reduce the complexity of the architecture, enhance adaptability, and improve reliability. Figures 1 to 7 The principles of the present disclosure are described.

[0040] Figure 1 FIG. 1 shows a schematic structural diagram of an immersion liquid cooling device 100 according to an embodiment of the present disclosure, wherein Figure 1 The middle heat exchange module 3 is in a state of being inserted into the second cavity 22 . Figure 2 FIG. 2 shows a schematic diagram of the structure of a cabinet 2 according to an embodiment of the present disclosure. Figure 1 and Figure 2As shown, in general, the immersion liquid cooling device 100 described herein includes a cabinet 2 and a heat exchange module 3. The cabinet 2 includes an external frame 23, a first cavity 21, a second cavity 22 integrated on an outer wall 211 of the first cavity 21, and a top cover 24. The first cavity 21 is used to accommodate the electronic equipment to be cooled and the first cooling liquid (not shown). The second cavity 22 is used to accommodate the heat exchange module 3 and the first cooling liquid. The first cavity 21 and the second cavity 22 are connected via a through hole 6 (see FIG. 6 ) provided on the outer wall 211. Figure 3 ) fluid communication, the first cooling liquid can circulate between the first cavity 21 and the second cavity 22 via the through hole 6. The heat exchange module 3 is suitable for being inserted into the second cavity 22 via the opening 221 on the second cavity 22. Figure 1 The heat exchange module 3 is inserted into the second cavity 22. Figure 2 In the cabinet 2 shown in FIG. , the heat exchange module 3 has been withdrawn from the second cavity 22 .

[0041] In some embodiments, the electronic device contained in the first cavity 21 includes a server or a switch. In other embodiments, the electronic device may also be of other types, and the embodiments of the present disclosure are not strictly limited in this regard.

[0042] like Figure 1 and Figure 2 As shown, the outer frame 23 generally surrounds the first cavity 21 and the second cavity 22, so as to provide mechanical support to the first cavity 21 and the second cavity 22 to a certain extent. The first cavity 21 and the second cavity 22 can be mounted on the outer frame 23 by welding or other means. In some embodiments, the outer frame 23 can be welded and formed by profiled square steel. In other embodiments, the outer frame 23 can also be manufactured and formed by other processes or other materials, and the embodiments of the present disclosure are not strictly limited in this regard.

[0043] In some embodiments, the first cavity 21 and the second cavity 22 may be welded by stainless steel plates. In other embodiments, the first cavity 21 and the second cavity 22 may be manufactured by other processes or using other materials, and the embodiments of the present disclosure are not strictly limited in this regard.

[0044] In some embodiments, the top cover 24 is rotatably connected to the outer frame 23 and can be switched between a closed state that closes the first cavity 21 and an open state that opens the first cavity 21 . Figure 1 and Figure 224 is shown in a closed state. In the closed state, the top cover 24 can reduce the leakage of the first coolant in the first cavity 21 and prevent external contaminants from entering the first cavity 21. When the top cover 24 is in an open state, the operator can install or maintain the electronic equipment in the first cavity 21 and inject the first coolant into the first cavity 21.

[0045] In some embodiments, the first cooling liquid includes fluorinated liquid or mineral oil. In other embodiments, the first cooling liquid may also be other types, and the embodiments of the present disclosure are not strictly limited in this respect.

[0046] In some embodiments, the top cover 24 can be opened more than 90 degrees relative to the outer frame 23. At the maximum opening angle, a stopper (not shown) can be provided to limit the position of the top cover 24.

[0047] In some embodiments, the top cover 24 can be connected to one side of the outer frame 23 by a hinge. In other embodiments, the top cover 24 can be connected to the outer frame 23 by other means, such as by shaft hole matching, etc., and the embodiments of the present disclosure are not strictly limited in this respect.

[0048] In some embodiments, Figure 1 and Figure 2 As shown, the top cover 24 includes a frame 241 and a transparent portion 242 surrounded by the frame 241. The frame 241 is connected to the outer frame 23 and can rotate relative to the outer frame 23. The frame 241 can be made of aluminum alloy or other types of metal or non-metallic materials. The transparent portion 242 can be made of transparent polycarbonate (PC) material or other types of transparent materials. By providing the transparent portion 242, even when the top cover 24 is in a closed state, the operator can observe the electronic device in the first cavity 21 through the transparent portion 242 and promptly understand the operating status of the electronic device.

[0049] In some embodiments, a sealing ring (not shown) is provided on one side of the top cover 24 facing the first cavity 21. When the top cover 24 is in a closed state, the top cover 24 and the first cavity 21 are sealed by the sealing ring. The sealing ring may include, for example, ethylene propylene diene monomer (EPDM) rubber or other types of sealing materials. The use of the sealing ring can improve the sealing performance between the top cover 24 and the first cavity 21, and further reduce the leakage of the first coolant in the first cavity 24.

[0050] In some embodiments, in order to open and close the top cover 24, the cabinet 2 further includes a hydraulic drive device (not shown). The hydraulic drive device is connected between the external frame 23 and the top cover 24 to drive the top cover 24 to switch between a closed state and an open state. The top cover 24 can be opened and closed conveniently by using the hydraulic drive device.

[0051] In some embodiments, the hydraulic drive device includes a pair of hydraulic rods (not shown). One of the pair of hydraulic rods is connected between one side of the top cover 24 and the corresponding side of the outer frame 23. The other of the pair of hydraulic rods is connected between the other side of the top cover 24 and the corresponding side of the outer frame 23. The state switching of the top cover 24 can be achieved quickly and reliably by the pair of hydraulic rods arranged opposite to each other.

[0052] It should be understood that in other embodiments, the top cover 24 can be switched between the closed state and the open state in other ways, and the embodiments of the present disclosure are not strictly limited in this regard.

[0053] In some embodiments, a handle (not shown) may be further provided on the side of the top cover 24 facing away from the first cavity 21. With this arrangement, an operator can open and close the top cover 24 by grasping the handle.

[0054] As described above, the first cavity 21 is fluidically connected to the second cavity 22 via the through hole 6 provided on the outer wall 211 . Figure 3 FIG. 2 shows an exemplary arrangement of the through holes 6 on the outer wall 211 of the first cavity 21. In some embodiments, as Figure 3 As shown, the through holes 6 include a first group of through holes 61 and a second group of through holes 62. The first coolant in the second cavity 22 can flow into the first cavity 21 via the first group of through holes 61, and the first coolant in the first cavity 21 can flow into the second cavity 22 via the second group of through holes 62.

[0055] In some embodiments, Figure 3 As shown, each through hole in the first group of through holes 61 may be elliptical in shape. It should be understood that in other embodiments, each through hole in the first group of through holes 61 may be in other shapes, such as circular, rectangular, square, bar, etc., and the embodiments of the present disclosure are not strictly limited in this regard.

[0056] Similarly, if Figure 3 As shown, each through hole in the second group of through holes 62 may be elliptical in shape. In other embodiments, each through hole in the second group of through holes 62 may be in other shapes, such as circular, rectangular, square, bar, etc., and the embodiments of the present disclosure are not strictly limited in this regard.

[0057] In some embodiments, in combination Figures 1 to 3, the first group of through holes 61 is arranged adjacent to the bottom side of the second cavity 22, and the second group of through holes 62 is arranged adjacent to the top side of the second cavity 22. With such an arrangement, most of the first coolant in the second cavity 22 can participate in the coolant circulation between the first cavity 21 and the second cavity 22.

[0058] It should be understood that in the embodiment according to the present disclosure, the through holes 6 on the outer wall 211 can also be in other forms, as long as a cooling liquid circulation path can be provided between the first cavity 21 and the second cavity 22. For example, the first group of through holes 61 can be replaced by a single or multiple elongated strip holes, and the second group of through holes 62 can also be replaced by a single or multiple elongated strip holes.

[0059] As mentioned above, the first cavity 21 and the second cavity 22 are both used to contain the first cooling liquid. In the first cavity 21, the first cooling liquid can immerse the electronic equipment for cooling the electronic equipment. In the second cavity 22, the heat exchange module 3 can be at least partially immersed in the first cooling liquid. The heat exchange module 3 can be connected to an external cooling device (such as a cooling tower) to receive the second cooling liquid provided by the external cooling device. The temperature of the second cooling liquid in the heat exchange module 3 is lower than the temperature of the first cooling liquid in the second cavity 22, so the first cooling liquid in the second cavity 22 can be cooled.

[0060] In some embodiments, the second coolant in the heat exchange module 3 may include deionized water. In other embodiments, the second coolant may also be of other types, and the embodiments of the present disclosure are not strictly limited in this regard.

[0061] The following will be combined Figures 4 to 6 Describe the exemplary structure of the heat exchange module 3. First, refer to Figure 4 , Figure 4 FIG. 2 shows a schematic diagram of the structure of a heat exchange module 3 according to an embodiment of the present disclosure. Figure 4 As shown, the heat exchange module 3 includes a coolant drive assembly 31 and a plate-fin heat exchanger 32. The coolant drive assembly 31 is used to drive the first coolant to the plate-fin heat exchanger 32. The plate-fin heat exchanger 32 is connected to a liquid circulation pipeline 40, and the liquid circulation pipeline 40 is used to circulate the second coolant between the plate-fin heat exchanger 32 and an external cooling device (such as a cooling tower). With this arrangement, a second coolant with a lower temperature can be provided to the plate-fin heat exchanger 32 via the liquid circulation pipeline 40. The plate-fin heat exchanger 32 can use the second coolant to cool the first coolant from the coolant drive assembly 31.

[0062] like Figure 4As shown, the coolant drive assembly 31 and the plate-fin heat exchanger 32 are roughly arranged up and down, wherein the coolant drive assembly 31 is on the top and the plate-fin heat exchanger 32 is on the bottom. Therefore, when the heat exchange module 3 is inserted into the second cavity 22, the coolant drive assembly 31 will be located above the plate-fin heat exchanger 32 and can be pulled out from the second cavity 22 while the plate-fin heat exchanger 32 is kept in the second cavity 22. In other words, the coolant drive assembly 31 and the plate-fin heat exchanger 32 are separately arranged, so that the coolant drive assembly 31 can be pulled out from the second cavity 22 alone, while the plate-fin heat exchanger 32 is kept in the second cavity 22. After the coolant drive assembly 31 is pulled out from the second cavity 22, the plate-fin heat exchanger 32 can be further pulled out from the second cavity 22. Accordingly, when inserting the heat exchange module 3 into the second cavity 22, the plate-fin heat exchanger 32 may be inserted into the second cavity 22 first, and then the coolant drive assembly 31 may be inserted into the second cavity 22.

[0063] In some embodiments, the coolant drive assembly 31 may be adjacent to Figure 3 The second set of through holes 62 is shown, and the plate fin heat exchanger 32 can be adjacent to Figure 3 The first set of through holes 61 shown. With this arrangement, combined with Figures 1 to 4 For example, the low-temperature first coolant can enter the first cavity 21 from the second cavity 22 through the first group of through holes 61 to absorb heat from the electronic device. The first coolant after absorbing heat and heating can enter the second cavity 22 from the first cavity 21 through the second group of through holes 62, and be driven by the coolant driving component 31 to the plate-fin heat exchanger 32 to be cooled again for the next cycle.

[0064] Since the operation and maintenance requirements of the coolant drive assembly 31 in the heat exchange module 3 are higher than those of the plate-fin heat exchanger 32, the coolant drive assembly 31 is arranged above the plate-fin heat exchanger 32 so that the coolant drive assembly 31 can be pulled out of the cabinet 2 alone, which facilitates the maintenance of the coolant drive assembly 31 and shortens the maintenance time of the coolant drive assembly 31.

[0065] The following will further combine Figure 5 and Figure 6 To describe the exemplary structure of the coolant drive assembly 31 and the plate-fin heat exchanger 32, wherein Figure 5 FIG. 1 shows a schematic structural diagram of a coolant drive assembly 31 according to an embodiment of the present disclosure. Figure 6 A schematic structural diagram of a plate-fin heat exchanger 32 according to an embodiment of the present disclosure is shown. Figure 5 The coolant drive assembly 31 shown in FIG. Figure 4 The coolant drive assembly 31 shown in FIG. 1 is at different viewing angles.

[0066] In some embodiments, Figure 4 and Figure 5 As shown, the coolant drive assembly 31 includes a bracket 30, and the bracket 30 includes a first support portion 301 and a second support portion 302. The first support portion 301 and the second support portion 302 can be assembled or connected together by welding, bolts or other methods to support other components of the coolant drive assembly 31. When the coolant drive assembly 31 is inserted into the second cavity 22, the first support portion 301 will be located outside the second cavity 22 and cover the opening 221 of the second cavity 22. The first support portion 301 will be supported by the external frame 23. In this way, the overall weight of the coolant drive assembly 31 can be reliably supported on the external frame 23 by the first support portion 301. The second support portion 302 is used to support some other components of the coolant drive assembly 31.

[0067] In some embodiments, Figure 4 and Figure 5 As shown, the coolant drive assembly 31 also includes a plurality of circulation pumps 33 and a connecting assembly 34 supported by the bracket 30. The plurality of circulation pumps 33 and the connecting assembly 34 are arranged on the second support portion 302. The circulation pump 33 is used to drive the first coolant to the connecting assembly 34. Each circulation pump 33 includes a circulation pump inlet 331 and a circulation pump outlet 332. The connecting assembly 34 is arranged between the circulation pump outlet 332 and the plate-fin heat exchanger 32, and includes a liquid flow channel for guiding the first coolant from the circulation pump 33 to the plate-fin heat exchanger 32. The liquid flow channel of the plate-fin heat exchanger 32 includes a flow channel inlet 341 and a flow channel outlet 342. The circulation pump outlet 332 of the circulation pump 33 is arranged corresponding to the flow channel inlet 341 of the liquid flow channel of the connecting assembly 34. For example, the circulation pump outlet 332 can be inserted into the flow channel inlet 341 of the connecting assembly 34, as shown in FIG. Figure 5 shown.

[0068] By setting up multiple circulation pumps 33 and using a connecting assembly 34 to guide the first coolant, in the event of a failure of some circulation pumps, the remaining circulation pumps in the coolant drive assembly 31 can still drive the first coolant to circulate effectively between the two cavities, thereby improving the reliability of the heat exchange module 3.

[0069] In some embodiments, Figure 4 and Figure 5As shown, the number of the circulating pumps 33 is six. The circulating pump outlets 332 of the six circulating pumps 33 are respectively connected to the flow channel inlet 341 of the connecting assembly 34. In fact, three circulating pumps 33 can basically meet the heat dissipation and coolant flow requirements of current electronic equipment, so the additional provision of three redundant circulating pumps will make the reliability of the heat exchange module 3 very high. In other embodiments, the circulating pumps 33 can be other numbers, such as three, four, five, seven, eight, etc.

[0070] It should be noted that the numbers, values, etc. mentioned above and elsewhere in the present disclosure are exemplary and are not intended to limit the scope of the present disclosure in any way. Any other appropriate numbers and values ​​are possible.

[0071] In some embodiments, a sealing ring (not shown) is provided on one side (i.e., the bottom side) of the first support portion 301 facing the second cavity 22. When the coolant drive assembly 31 is inserted into the second cavity 22, the first support portion 301 and the second cavity 22 are sealed by the sealing ring. The sealing ring may include, for example, EPDM rubber or other types of sealing materials. The use of the sealing ring can improve the sealing performance between the first support portion 301 and the second cavity 22 and reduce the leakage of the first coolant in the second cavity 22.

[0072] In some embodiments, Figure 4 and Figure 5 As shown, a display screen 35 is provided on the side (i.e., the top side) of the first support portion 301 facing away from the second cavity 22. The display screen 35 can be used to observe the status of the plurality of circulating pumps 33 and the first coolant in real time, so as to maintain the circulating pump 33 when the circulating pump 33 operates abnormally.

[0073] In some embodiments, Figure 4 and Figure 5 As shown, the heat exchange module 3 further includes a logic control component 36 for monitoring and / or controlling the operating status of the plurality of circulation pumps 33. The logic control component 36 can be disposed on a side of the first support portion 301 facing the second cavity 22. In other embodiments, the logic control component 36 can also be disposed at other positions, which is not limited in the embodiments of the present disclosure.

[0074] In some embodiments, the heat exchange module 3 further includes one or more sensors (not shown) for detecting the state of the first coolant in the second cavity 22. For example, a conductivity sensor may be used to detect the conductivity of the first coolant, and a temperature sensor may be used to detect the temperature of the first electrolyte. The signal detected by the sensor may be transmitted to the logic control component 36 to control the operating state of the plurality of circulation pumps 33.

[0075] In some embodiments, Figure 4and Figure 5 As shown, a handle 38 is provided on the top side of the first support portion 301. By grasping the handle 38, the operator can conveniently extract the coolant drive assembly 31 from the second cavity 22 or insert it into the second cavity 22.

[0076] like Figure 5 As shown, one or more electrical connectors 39 may be further provided on the first support portion 301 , and the circulation pump 33 may be powered and controlled through the electrical connectors 39 .

[0077] In some embodiments, a filter (not shown) may be provided at the circulation pump inlet 331 of the plurality of circulation pumps 33. The filter may filter the first coolant entering the circulation pump 33 to prevent impurities from entering the pump body and damaging the circulation pump 33.

[0078] In some embodiments, Figure 4 As shown, the coolant drive assembly 31 further includes one or more liquid occupying blocks 37. When the heat exchange module 3 is inserted into the second cavity 22, the liquid occupying blocks 37 can be at least partially immersed in the first coolant in the second cavity 22. In this way, the liquid occupying blocks 37 can displace the volume of the first coolant in the second cavity 22, so that the liquid level of the first coolant in the second cavity 22 rises, reducing the amount of the first coolant required in the cabinet 2 and reducing the overall cost.

[0079] The following will be combined Figure 4 and Figure 6 An exemplary structure of the plate-fin heat exchanger 32 will be described.

[0080] In some embodiments, Figure 4 and Figure 6 As shown, the plate-fin heat exchanger 32 includes an internal channel 320 for the first coolant from the connection assembly 34 to pass therethrough. The internal channel 320 has a channel inlet 321 and a channel outlet 322 located on opposite sides of the plate-fin heat exchanger 32. The channel inlet 321 is arranged corresponding to the channel outlet 342 of the liquid flow channel of the connection assembly 34. The inner cavity of the plate-fin heat exchanger 32 is connected to the liquid inlet pipe 401 and the liquid return pipe 402 in the liquid circulation pipeline 40 to receive the second coolant from the cooling tower via the liquid inlet pipe 401, and return the second coolant to the cooling tower via the liquid return pipe 402. With such an arrangement, the connection assembly 34 can inject the first coolant from the circulation pump 33 into the internal channel 320 via the channel inlet 321, so as to be cooled by the second coolant in the plate-fin heat exchanger 32. In this way, the second coolant in the inner cavity of the plate-fin heat exchanger 32 can form a cross-flow heat exchange with the first coolant flowing through the internal channel 320 , thereby enhancing the heat exchange efficiency of the plate-fin heat exchanger 32 .

[0081] In some embodiments, Figures 4 to 6 As shown, the flow channel outlet 342 of the connection assembly 34 and the channel inlet 321 of the plate-fin heat exchanger 32 have rectangular shapes respectively. The rectangular-shaped flow channel outlet 342 and the channel inlet 321 are easy to align, so as to efficiently inject the first coolant into the internal channel 320 of the plate-fin heat exchanger 32. In other embodiments, the flow channel outlet 342 of the connection assembly 34 and the channel inlet 321 of the plate-fin heat exchanger 32 may have other shapes, and the embodiments of the present disclosure are not limited to this.

[0082] In some embodiments, the size of the flow channel outlet 342 of the connection component 34 is smaller than the size of the channel inlet 321 of the plate-fin heat exchanger 32. Since the size of the flow channel outlet 342 is smaller than the size of the channel inlet 321, the first coolant flowing out of the connection component 34 can basically enter the internal channel 320 of the plate-fin heat exchanger 32, thereby improving the cooling performance of the heat exchange module 3. In other embodiments, the size of the flow channel outlet 342 of the connection component 34 can be substantially equal to or slightly larger than the size of the channel inlet 321 of the plate-fin heat exchanger 32, and the embodiments of the present disclosure are not limited to this.

[0083] In some embodiments, Figure 4 and Figure 6 As shown, the plate-fin heat exchanger 32 further includes an operating member 324 disposed adjacent to the channel inlet 321 for extracting the plate-fin heat exchanger 32 from the second cavity 22. After the coolant drive assembly 31 is extracted from the second cavity 22, the plate-fin heat exchanger 32 can be easily extracted from the second cavity 22 by pulling the operating member 324. The operating member 324 may be a lifting ring or other forms, and the embodiments of the present disclosure are not limited thereto.

[0084] In some embodiments, the immersion liquid cooling device 100 further includes a height bracket (not shown), which is disposed below the first cavity 21 and supports the first cavity 21. With this arrangement, the user can match the liquid cooling device with different height brackets according to the actual depth of the electronic device, thereby saving the use of the first cooling liquid and reducing the overall cost of the liquid cooling device. In some cases, the height bracket can also support the second cavity 22.

[0085] Figure 7 FIG. 9 is a schematic diagram showing a structure of a liquid cooling system 900 according to an embodiment of the present disclosure. Figure 7 As shown, the liquid cooling system 900 includes a plurality of immersion liquid cooling devices 100 arranged side by side. Each of the plurality of immersion liquid cooling devices 100 may be a combination of Figures 1 to 6 Any of the immersion liquid cooling devices 100 described.

[0086] Whether deployed in a small, medium or large data center, users can set the number of immersion liquid cooling devices 100 according to business needs, thereby forming business systems of different sizes, bringing a more flexible and efficient immersion liquid cooling system deployment mode to the data center. This also solves the problem of excessive losses caused by a large number of IT devices in a single cabinet. For example, in some edge computing usage scenarios, this small immersion liquid cooling device 100 can be deployed independently in small quantities, bringing more miniaturized and flexible deployment application scenarios.

[0087] In addition, when deploying a large-scale cluster, the immersion liquid cooling device 100 can be arranged in the data center computer room in advance by pre-installing the cabinet 2 and the heat exchange module 3 in the data center, and the liquid circulation pipeline 40 is connected to the primary side cooling liquid supply system (such as a cooling tower) for debugging. Subsequently, when there is a business demand, the user can purchase IT equipment and deploy it in the first cavity 21 of the cabinet 2, and finally add the first cooling liquid to the first cavity 21, thereby completing the deployment of the entire system. In this way, the deployment time of the data center can be greatly shortened.

[0088] The embodiment of the present disclosure also provides a data center for large-scale cluster deployment, including: multiple immersion liquid cooling devices 100, which are pre-arranged in the computer room of the data center, each immersion liquid cooling device 100 has not yet been provided with electronic equipment and has not yet been injected with a first cooling liquid; and a primary side cooling liquid supply system (such as a cooling tower), which is connected to the liquid circulation pipeline 40 in the heat exchange module 3 of each immersion liquid cooling device 100 through a liquid infusion pipeline. With this arrangement, the immersion liquid cooling device 100 can be connected and debugged with the primary side cooling liquid supply system in advance, which is convenient for rapid large-scale cluster deployment.

[0089] In an embodiment according to the present disclosure, the first cavity 21 of the cabinet 2 in the immersion liquid cooling device 100 can be designed to have different sizes, such as different depths, to accommodate IT equipment of different sizes, such as 4U, 8U, 12U, etc., where U represents the height unit of the IT equipment, 1U = 1.75 inches = 4.445 centimeters, 4U = 7 inches = 17.78 centimeters, 8U = 14 inches = 35.56 centimeters, 12U = 21 inches = 53.34 centimeters. Accordingly, the height bracket can have different sizes, so that the same set of external frames 23 can adapt to different first cavities 21. In some embodiments, the height bracket can also be a height-adjustable height bracket.

[0090] For example, the depth of a general computing server is 600 mm, and the depth of a storage server is 800 mm. The cabinet 2 can adjust the depth of the first cavity 21 through the height bracket at the bottom; by designing the first cavity 21 with different depths, the usage of the first coolant can be significantly reduced.

[0091] The embodiments of the present disclosure provide a liquid cooling system design with an internally integrated plate-fin heat exchanger, which efficiently realizes self-circulating cooling of IT equipment such as servers and switches arranged therein, reduces the investment and overall operating costs of the data center, and enables the overall power usage efficiency (PUE) of the data center to be controlled below 1.1, thereby saving energy. In addition, by arranging multiple circulation pumps above the plate-fin heat exchanger, the multiple circulation pumps can be individually drawn out of the cabinet, which facilitates the maintenance of the multiple circulation pumps and shortens the maintenance time of the multiple circulation pumps.

[0092] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An immersion liquid cooling device (100), characterized in that: include: A cabinet (2), the cabinet (2) comprising a first cavity (21) and a second cavity (22) integrated on an outer wall (211) of the first cavity (21), the first cavity (21) being used to accommodate electronic equipment to be cooled, the outer wall (211) being provided with a through hole (6) for a first cooling liquid to circulate between the first cavity (21) and the second cavity (22); as well as A heat exchange module (3) is suitable for being inserted into the second cavity (22) through the opening (221) of the second cavity (22), the heat exchange module (3) comprising a coolant drive component (31) and a plate-fin heat exchanger (32), the coolant drive component (31) being used to drive the first coolant, and the plate-fin heat exchanger (32) being used to cool the first coolant driven by the coolant drive component (31) using the second coolant, wherein when the heat exchange module (3) is inserted into the second cavity (22), the coolant drive component (31) is located above the plate-fin heat exchanger (32) and can be withdrawn from the second cavity (22) when the plate-fin heat exchanger (32) is maintained in the second cavity (22).

2. The immersion liquid cooling device (100) according to claim 1, characterized in that: The coolant drive assembly (31) comprises a bracket (30), a plurality of circulation pumps (33) and a connecting assembly (34), wherein the plurality of circulation pumps (33) and the connecting assembly (34) are supported by the bracket (30), the connecting assembly (34) comprises a liquid flow channel for guiding the first coolant from the plurality of circulation pumps (33) to the plate-fin heat exchanger (32), and the circulation pump outlets (332) of the plurality of circulation pumps (33) are arranged correspondingly to the flow channel inlet (341) of the liquid flow channel of the connecting assembly (34).

3. The immersion liquid cooling device (100) according to claim 2, characterized in that: The plate-fin heat exchanger (32) includes an internal channel (320) through which the first coolant from the connecting component (34) passes, and the internal channel (320) has a channel inlet (321) and a channel outlet (322) located on opposite sides of the plate-fin heat exchanger (32), and the channel inlet (321) is arranged corresponding to the channel outlet (342) of the liquid flow channel of the connecting component (34).

4. The immersion liquid cooling device (100) according to claim 3, characterized in that: The flow channel outlet (342) of the connection assembly (34) and the channel inlet (321) of the plate-fin heat exchanger (32) respectively have a rectangular shape.

5. The immersion liquid cooling device (100) according to claim 3, characterized in that: The size of the flow channel outlet (342) of the connecting assembly (34) is smaller than the size of the channel inlet (321) of the plate-fin heat exchanger (32).

6. The immersion liquid cooling device (100) according to claim 3, characterized in that: The plate-fin heat exchanger (32) further comprises an operating member (324) disposed adjacent to the channel inlet (321) and used for withdrawing the plate-fin heat exchanger (32) from the second cavity (22).

7. The immersion liquid cooling device (100) according to claim 6, characterized in that: The operating member (324) includes a pair of lifting rings.

8. The immersion liquid cooling device (100) according to claim 2, characterized in that: The bracket (30) comprises a first supporting portion (301) and a second supporting portion (302), the plurality of circulation pumps (33) and the connecting assembly (34) being supported by the second supporting portion (302), wherein when the heat exchange module (3) is inserted into the second cavity (22), the first supporting portion (301) covers the opening (221) of the second cavity (22).

9. The immersion liquid cooling device (100) according to claim 8, characterized in that: A sealing ring is provided on the side of the first support portion (301) facing the second cavity (22), wherein when the heat exchange module (3) is inserted into the second cavity (22), the first support portion (301) and the second cavity (22) are sealed by the sealing ring.

10. The immersion liquid cooling device (100) according to claim 8, characterized in that: A display screen (35) is provided on a side of the first supporting portion (301) facing away from the second cavity (22).

11. The immersion liquid cooling device (100) according to claim 8, characterized in that: A handle (38) is provided on a side of the first supporting portion (301) facing away from the second cavity (22).

12. The immersion liquid cooling device (100) according to claim 2, characterized in that: A filter is provided at the circulation pump inlet (331) of the plurality of circulation pumps (33).

13. The immersion liquid cooling device (100) according to claim 2, characterized in that: The number of the plurality of circulation pumps (33) is three to eight.

14. The immersion liquid cooling device (100) according to claim 1, characterized in that: The through holes (6) include a first group of through holes (61) and a second group of through holes (62), wherein the second group of through holes (62) is closer to the opening (221) of the second cavity (22) than the first group of through holes (61), wherein when the heat exchange module (3) is inserted into the second cavity (22), the coolant drive assembly (31) is adjacent to the second group of through holes (62), and the plate-fin heat exchanger (32) is adjacent to the first group of through holes (61).

15. The immersion liquid cooling device (100) according to claim 1, characterized in that: The coolant drive assembly (31) further comprises a liquid block (37), wherein when the heat exchange module (3) is inserted into the second cavity (22), the liquid block (37) can be at least partially immersed in the first coolant in the second cavity (22).

16. The immersion liquid cooling device (100) according to claim 1, characterized in that: The cabinet (2) further comprises an external frame (23) and a top cover (24), wherein the external frame (23) is arranged around the first cavity (21) and the second cavity (22), and the top cover (24) is rotatably connected to the external frame (23) and is capable of switching between a closed state for sealing the first cavity (21) and an open state for opening the first cavity (21).

17. The immersion liquid cooling device (100) according to claim 16, characterized in that: A sealing ring is provided on a side of the top cover (24) facing the first cavity (21), wherein when the top cover (24) is in the closed state, the top cover (24) and the first cavity (21) are sealed by the sealing ring.

18. The immersion liquid cooling device (100) according to claim 16, characterized in that: The cabinet (2) further comprises a hydraulic drive device, wherein the hydraulic drive device is connected between the external frame (23) and the top cover (24) to drive the top cover (24) to switch between the closed state and the open state.

19. The immersion liquid cooling device (100) according to claim 1, characterized in that: The first cooling liquid includes fluorinated liquid or mineral oil, and / or the second cooling liquid includes deionized water.

20. A liquid cooling system (900), characterized in that: The invention comprises a plurality of immersion liquid cooling devices (100) arranged side by side, wherein each of the plurality of immersion liquid cooling devices (100) is an immersion liquid cooling device (100) according to any one of claims 1 to 19.

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