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 side wall of the first cavity, the side wall is provided with a through hole for a first cooling liquid to circulate between the two cavities; and a heat exchange module, suitable for being inserted into the second cavity through an opening on the second cavity, and including a heat exchanger, a cooling liquid driving device and a guide assembly, the heat exchanger is used to cool the first cooling liquid with the second cooling liquid, the cooling liquid driving device is used to drive the first cooling liquid to circulate between the two cavities, and the guide assembly includes a liquid flow channel for guiding the first cooling liquid from the cooling liquid driving device to the heat exchanger, wherein when the heat exchange module is inserted into the second cavity, the cooling liquid driving device is closer to the opening of the second cavity than the heat exchanger and can be drawn out of the second cavity when the heat exchanger and the guide assembly are 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 integration of new-generation information and communication technologies such as 5G, cloud computing, big data, and artificial intelligence with the real economy, data centers are gradually expanding from serving some enterprises to serving the entire society, becoming a new infrastructure.

[0003] This new infrastructure places higher demands on the cooling solutions and overall energy efficiency of data centers. On the one hand, with the advent of the big data era, data is growing at an unimaginable rate. The processing, storage and transmission of massive amounts of data require the power consumption of IT equipment to increase exponentially, making chip cooling a huge challenge. Traditional air cooling solutions can no longer 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 began to adopt liquid cooling technology, using working fluid as the medium for intermediate heat transfer, transferring heat from the heat-generating area to the cooling tower for cooling. Liquid cooling technology has a significantly higher cooling efficiency than air cooling, which can effectively solve the heat dissipation problem of high-power IT equipment, reduce the energy consumption of the cooling system and reduce noise.

[0005] In current data centers that use liquid cooling solutions, conventional immersion liquid cooling systems are generally composed of large cabinets (usually about 3 meters in length) equipped with one or more cold liquid distribution units (CDUs). However, this conventional immersion liquid cooling system is large in size, complex in structure, and inconvenient to assemble. In addition, this liquid cooling system is difficult to operate and maintain, and has poor reliability.

[0006] Therefore, a need exists for improved data center liquid cooling solutions. Summary of the invention

[0007] 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.

[0008] 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 a side wall of the first cavity, the first cavity being used to accommodate electronic equipment to be cooled, the side wall being 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, adapted to be inserted into the second cavity through an opening on the second cavity, the heat exchange module comprising a heat exchanger, a cooling liquid driving device and a guide assembly, the heat exchanger being used to receive a second cooling liquid through a liquid circulation pipeline and utilize the second cooling liquid to cool the electronic equipment. The cooling liquid cools the first cooling liquid, the cooling liquid driving device is used to drive the first cooling liquid to circulate between the second cavity and the first cavity, and the guide component includes a liquid flow channel for guiding the first cooling liquid from the cooling liquid driving device to the heat exchanger, wherein when the heat exchange module is inserted into the second cavity, the cooling liquid driving device is closer to the opening of the second cavity than the heat exchanger, and the cooling liquid driving device can be drawn out of the second cavity when the heat exchanger and the guide component are kept in the second cavity.

[0009] 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 heat exchanger, the operation and maintenance requirements of the coolant drive device in the heat exchange module are higher. Therefore, by arranging the coolant drive device above the heat exchanger, the coolant drive device can be pulled out of the cabinet alone, which facilitates the maintenance of the coolant drive device and shortens the maintenance time of the coolant drive device.

[0010] In some embodiments, the heat exchange module further includes a first bracket, the heat exchanger and the guide assembly are supported by the first bracket, and the coolant drive device includes a first drive assembly, the first drive assembly includes a second bracket and a first circulation pump supported by the second bracket, the second bracket is detachably connected to the first bracket, wherein when the second bracket is connected to the first bracket, the circulation pump outlet of the first circulation pump is connected to the liquid flow channel in the guide assembly. In such an embodiment, through the cooperation between the first bracket and the second bracket, it is possible to conveniently extract the first drive assembly from the cabinet alone or extract the first drive assembly from the cabinet together with other components in the heat exchange module.

[0011] In some embodiments, the first bracket includes a first support portion and a second support portion, the second bracket is detachably connected to the first support portion, the heat exchanger and the guide assembly are supported by the second support portion, wherein when the heat exchange module is inserted into the second cavity, the first support portion is located outside the second cavity. In such an embodiment, the cabinet can reliably support the heat exchange module through the first support portion, and the first support portion can prevent leakage of the first coolant in the second cavity.

[0012] 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.

[0013] In some embodiments, a display screen for displaying the operating status of the coolant drive device is disposed on a side of the first support portion facing away from the second cavity. In such an embodiment, the operating status of the coolant drive device can be observed in real time through the display screen, so that the coolant drive device can be maintained when the coolant drive device operates abnormally.

[0014] In some embodiments, the heat exchanger and the guide assembly are fixed to the second support portion by fasteners. In such embodiments, the heat exchanger and the guide assembly can be reliably fixed to the second support portion by fasteners.

[0015] In some embodiments, the second bracket includes a third support portion and a fourth support portion, the third support portion is detachably connected to the first support portion, and the first circulation pump is supported by the fourth support portion. In such an embodiment, the first drive assembly and the first bracket can be easily assembled and disassembled through the cooperation between the third support portion and the first support portion.

[0016] In some embodiments, a handle is provided on a side of the third support portion facing away from the first circulating pump. In such an embodiment, the handle can be used to conveniently extract the first drive assembly from the second cavity alone or the heat exchange module as a whole.

[0017] In some embodiments, the fourth support portion includes a first inclined portion inclined relative to the withdrawal direction of the first drive assembly, the circulation pump outlet of the first circulation pump is arranged at the first inclined portion, and the guide assembly includes a second inclined portion inclined relative to the withdrawal direction, wherein when the third support portion is connected to the first support portion, the second inclined portion is in contact with the first inclined portion. In such an embodiment, the cooperation of the first inclined portion and the second inclined portion can ensure the precise positioning of the first drive assembly during insertion, and can ensure the reliable communication between the circulation pump outlet of the first circulation pump and the liquid flow channel in the guide assembly.

[0018] In some embodiments, the first drive assembly further comprises a filter disposed at a circulation pump inlet of the first circulation pump. In such an embodiment, the first coolant entering the first circulation pump can be filtered to prevent impurities from entering the pump body and damaging the first circulation pump.

[0019] In some embodiments, the coolant drive device further includes a second drive assembly, the second drive assembly includes a third bracket and a second circulation pump supported by the third bracket, and the third bracket is detachably connected to the first bracket. In such an embodiment, by providing a redundant second drive assembly, when one of the first drive assembly and the second drive assembly fails, the other drive assembly can still operate normally, thereby improving the reliability of the liquid cooling device.

[0020] In some embodiments, the guide assembly includes a first guide member and a second guide member and a third guide member disposed above the first guide member, the liquid flow channel in the second guide member is communicated with the circulation pump outlet of the first circulation pump, the liquid flow channel in the third guide member is communicated with the circulation pump outlet of the second circulation pump, and the liquid flow channel in the first guide member is connected to the heat exchanger. In such an embodiment, the first guide member, the second guide member and the third guide member can, on the one hand, reliably guide the first coolant from the coolant drive device to the heat exchanger, and on the other hand, can displace the volume of the first coolant in the second cavity, thereby raising the liquid level of the first coolant in the second cavity, reducing the amount of the first coolant required in the cabinet, and reducing the overall cost.

[0021] In some embodiments, the heat exchanger is a plate heat exchanger, which includes an outer cavity and an inner cavity surrounded by the outer cavity, the outer cavity includes a first liquid inlet and a first liquid outlet, the first liquid inlet is connected to the liquid flow channel in the guide assembly to receive the first coolant, the first liquid outlet is used to release the first coolant from the outer cavity to the second cavity, and the inner cavity includes a second liquid inlet and a second liquid outlet, the second liquid inlet is connected to the liquid inlet pipe in the liquid circulation pipeline to receive the second coolant, and the second liquid outlet is connected to the liquid return pipe in the liquid circulation pipeline. In such an embodiment, the first coolant in the outer cavity and the second coolant in the inner cavity can form a cross-flow form of heat exchange, thereby enhancing the heat exchange efficiency of the heat exchanger.

[0022] 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 driving device is adjacent to the second group of through holes, and the heat exchanger is adjacent to the first group of through holes. In such an embodiment, by arranging the coolant driving device 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 heat exchanger adjacent to the first group of through holes, the first coolant cooled by the heat exchanger can flow into the first cavity in a timely manner via the first group of through holes.

[0023] In some embodiments, the heat exchange module 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 cooling liquid 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 cooling liquid, thereby reducing the amount of the first cooling liquid required in the cabinet and reducing the overall cost.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] In some embodiments, the first cooling liquid includes a fluorinated liquid or a mineral oil, and / or the second cooling liquid includes deionized water.

[0028] 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.

[0029] 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

[0030] 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:

[0031] Figure 1 and Figure 2 FIG. 1 shows a schematic structural diagram of an immersion liquid cooling device according to an embodiment of the present disclosure, wherein Figure 1 The heat exchange module is inserted into the second cavity, and Figure 2 The middle heat exchange module is in a state of being drawn out from the second cavity;

[0032] Figure 3 A schematic structural diagram of a side 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 Shows Figure 4 The front view of the heat exchange module shown;

[0035] Figure 6 A schematic structural diagram of a first driving assembly according to an embodiment of the present disclosure is shown;

[0036] Figure 7 Shows Figure 1 The first drive assembly in the immersion liquid cooling device is shown as being pulled out;

[0037] Figure 8 A schematic structural diagram of a heat exchanger according to an embodiment of the present disclosure is shown; and

[0038] Fig. 9 A schematic structural diagram of a liquid cooling system according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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 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 9 The principles of the present disclosure are described.

[0042] Figure 1 and Figure 2 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 heat exchange module 3 is inserted into the second cavity 22, and Figure 2The heat exchange module 3 is in a state of being drawn out from the second cavity 22. Figure 1 and Figure 2 As 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 the side 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 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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 2 24 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] In some embodiments, Figure 1 and Figure 2 As shown, the top cover 24 includes a frame 241 and an observation window 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 observation window 242 can be made of transparent polycarbonate (PC) material or other types of transparent materials. By providing the observation window 242, even when the top cover 24 is in a closed state, the operator can observe the electronic equipment in the first cavity 21 through the observation window 242 and promptly understand the operating status of the electronic equipment.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] As described above, the first cavity 21 is fluidically connected to the second cavity 22 via the through hole 6 provided on the side wall 211 . Figure 3 FIG. 2 shows an exemplary arrangement of the through holes 6 on the side 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] It should be understood that in the embodiment according to the present disclosure, the through holes 6 on the side 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.

[0061] 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.

[0062] 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.

[0063] The following will be combined Figures 4 to 8 Describe the exemplary structure of the heat exchange module 3. First, refer to Figure 4 and Figure 5 , Figure 4 shows a schematic structural diagram of a heat exchange module 3 according to an embodiment of the present disclosure, Figure 5 Shows Figure 4 The front view of the heat exchange module 3 is shown in FIG. Figure 5 A portion of the liquid circulation pipeline 31 is omitted. Figure 4 and Figure 5 As shown, the heat exchange module 3 includes a heat exchanger 32, a coolant driving device 33 and a guide assembly 34. The heat exchanger 32 is fluidly connected to a liquid circulation pipeline 31, and the liquid circulation pipeline 31 is used to circulate the second coolant between the 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 heat exchanger 32. The heat exchanger 32 can use the second coolant to cool the first coolant in the second cavity 22. The coolant driving device 33 is used to circulate the first coolant between the second cavity 22 and the first cavity 21. The guide assembly 34 includes a liquid flow channel (not shown) for guiding the first coolant from the coolant driving device 33 to the heat exchanger 32. With this arrangement, the low-temperature first coolant can be, for example, Figure 3The first group of through holes 61 shown enters the first cavity 21 from the second cavity 22 to absorb heat from the electronic device. The first coolant after absorbing heat and heating up 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 device 33 to the liquid flow channel of the guide assembly 34, and then reach the heat exchanger 32 along the liquid flow channel to be cooled again for the next cycle.

[0064] like Figure 5 As shown, the coolant driving device 33 is arranged above the heat exchanger 32, wherein the coolant driving device 33 is close to the top side of the heat exchange module 3, and the heat exchanger 32 is close to the bottom side of the heat exchange module 3. Figure 1 and Figure 2 , when the heat exchange module 3 is inserted into the second cavity 22, the coolant driving device 33 will be closer to the opening 221 of the second cavity 22 than the heat exchanger 32. In some embodiments, the coolant driving device 33 may be closer to the opening 221 of the second cavity 22. Figure 3 The second set of through holes 62 is shown, and the heat exchanger 32 can be adjacent to Figure 3 A first set of through holes 61 is shown.

[0065] In the embodiment according to the present disclosure, the cooling liquid driving device 33 is detachably installed in the heat exchange module 3. Therefore, the cooling liquid driving device 33 can be withdrawn from the second cavity 22 while the heat exchanger 32 and the guide assembly 34 are kept in the second cavity 22. Since the operation and maintenance requirements of the cooling liquid driving device 33 in the heat exchange module 3 are higher than those of the heat exchanger 32, the cooling liquid driving device 33 is arranged above the heat exchanger 32 so that the cooling liquid driving device 33 can be withdrawn from the cabinet 2 alone, which facilitates the maintenance of the cooling liquid driving device 33 and shortens the maintenance time of the cooling liquid driving device 33.

[0066] In some embodiments, Figure 4 and Figure 5 As shown, the heat exchange module 3 also includes a first bracket 30, and the first 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 heat exchange module 3. When the heat exchange module 3 is inserted into the second cavity 22, the first support portion 301 is located outside the second cavity 22 and supported by the external frame 23. In this way, the overall weight of the heat exchange module 3 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 heat exchange module 3. For example, the heat exchanger 32 and the guide assembly 34 can be arranged on the second support portion 302.

[0067] In an example implementation, Figure 4and Figure 5 As shown, the heat exchanger 32 and the guide assembly 34 are fixed to the second support portion 302 by fasteners 37. The fasteners 37 may be, for example, U-shaped strips, which may use bolts to fix the heat exchanger 32 and the guide assembly 34 to the second support portion 302. It should be understood that the fasteners 37 are merely exemplary and are not intended to limit the scope of the present disclosure in any way. In other example implementations, the heat exchanger 32 and the guide assembly 34 may be fixed to the second support portion 302 by other means.

[0068] 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 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. 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.

[0069] In some embodiments, Figure 4 and Figure 5 As shown, a display screen 35 for displaying the operating status of the coolant drive device 33 is provided on one side (i.e., the top side) of the first support portion 301 facing away from the second cavity 22. The operating status of the coolant drive device 33 can be observed in real time through the display screen 35, so that the coolant drive device 33 can be maintained when the coolant drive device 33 operates abnormally.

[0070] 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 state of the coolant driving device 33. The logic control component 36 can be supported by the first support portion 301 and arranged on a side of the first support portion 301 facing the second cavity 22. The logic control component 36 can also be arranged at other positions, which is not limited in the embodiments of the present disclosure.

[0071] 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 coolant drive device 33.

[0072] In some embodiments, Figure 4 and Figure 5As shown, the heat exchange module 3 further includes one or more liquid occupying blocks 38. When the heat exchange module 3 is inserted into the second cavity 22, the liquid occupying blocks 38 can be at least partially immersed in the first cooling liquid in the second cavity 22. In this way, the liquid occupying blocks 38 can displace the volume of the first cooling liquid in the second cavity 22, so that the liquid level of the first cooling liquid in the second cavity 22 rises, reducing the amount of the first cooling liquid required in the cabinet 2 and reducing the overall cost.

[0073] In some embodiments, Figure 4 and Figure 5 As shown, the coolant driving device 33 includes a first driving component 331 . Figure 6 FIG. 3 shows an exemplary structure of the first drive assembly 331. Figure 6 As shown, the first driving assembly 331 includes a second bracket 330 and a first circulation pump 333 supported by the second bracket 330. Figures 4 to 6 , the second bracket 330 is detachably connected to the first bracket 30. In one example implementation, the second bracket 330 can be fixed to the first bracket 30 by bolts. In another example implementation, the second bracket 330 can be snap-connected to the first bracket 30 by buckles. In other implementations, the second bracket 330 can be detachably connected to the first bracket 30 in other ways, and the embodiments of the present disclosure are not strictly limited to this. With such an arrangement, when the heat exchange module 3 is inserted into the second cavity 22, the first drive assembly 331 can be withdrawn from the second cavity 22 alone for maintenance, such as Figure 7 shown.

[0074] Combination Figures 4 to 6 , the first circulation pump 333 includes a circulation pump inlet 3331 and a circulation pump outlet 3332. When the second bracket 330 is connected to the first bracket 30, the circulation pump outlet 3332 of the first circulation pump 333 will be connected to the liquid flow channel in the guide assembly 34. Therefore, the first circulation pump 333 can drive the first coolant into the liquid flow channel of the guide assembly 34.

[0075] In some embodiments, Figure 6 As shown, the first driving assembly 331 further includes a filter 334 disposed at the circulation pump inlet 3331 of the first circulation pump 333. The filter 334 can filter the first coolant entering the first circulation pump 333 to prevent impurities from entering the pump body and damaging the first circulation pump 333.

[0076] In some embodiments, Figure 6 As shown, the second bracket 330 includes a third support portion 3301 and a fourth support portion 3302. Figures 4 to 6, the third support portion 3301 is detachably connected to the first support portion 301, and the first circulation pump 333 is supported by the fourth support portion 3302. The third support portion 3301 can be connected to the first support portion 301 by bolts, buckles or other structures.

[0077] In some embodiments, Figure 6 As shown, a handle 335 is provided on one side (top side) of the third support portion 3301 facing away from the first circulation pump 333. When the third support portion 3301 is not connected to the first connection portion 301, the first drive assembly 331 can be easily pulled out of the second cavity 22 by the handle 335. Figure 7 When the third support portion 3301 is connected to the first connection portion 301, the heat exchange module 3 can be conveniently pulled out of the second cavity 22 as a whole through the handle 335. Figure 2 shown.

[0078] like Figure 6 As shown, one or more electrical connectors 336 may be further provided on the side of the third support portion 3301 facing away from the first circulation pump 333 , and the first circulation pump 333 may be powered and controlled through the electrical connectors 336 .

[0079] In some embodiments, in combination Figures 4 to 6 The fourth support portion 3302 includes a withdrawal direction X (eg Figure 5 The first inclined portion 3303 is inclined relative to the vertical direction in the drawing direction X, and the circulation pump outlet 3332 of the first circulation pump 333 is arranged at the first inclined portion 3303. Accordingly, the guide assembly 34 includes a second inclined portion 3411 inclined relative to the extraction direction X. When the third support portion 3301 is connected to the first support portion 301, the second inclined portion 3411 is attached to the first inclined portion 3303, thereby realizing the communication between the circulation pump outlet 3332 of the first circulation pump 333 and the liquid flow channel in the guide assembly 34. By providing the first inclined portion 3303 and the second inclined portion 3411, on the one hand, the precise positioning of the first drive assembly 331 during insertion can be ensured, and on the other hand, the reliable communication between the circulation pump outlet 3332 of the first circulation pump 333 and the liquid flow channel in the guide assembly 34 can be ensured.

[0080] In some embodiments, a sealing ring may be provided at the circulation pump outlet 3332 of the first circulation pump 333 and the inlet of the liquid flow channel in the guide assembly 34 to improve the sealing performance therebetween, thereby ensuring that the first circulation pump 333 can reliably drive the first coolant into the heat exchanger 32 .

[0081] In some embodiments, Figure 4 and Figure 5As shown, the coolant drive device 33 also includes a second drive assembly 332. The second drive assembly 332 is arranged side by side with the first drive assembly 331 and has a similar structure to the first drive assembly 331. For example, the second drive assembly 332 may include a third bracket and a second circulation pump supported by the third bracket. The structure of the third bracket is similar to that of the second bracket 330, and the structure of the second circulation pump is similar to that of the first circulation pump 333, which will not be repeated here. The third bracket is detachably connected to the first bracket 30. Therefore, similar to the first drive assembly 331, the second drive assembly 332 can also be extracted from the second cavity 22 alone, or together with the heat exchanger 32. By providing a redundant second drive assembly 332, when one of the first drive assembly 331 and the second drive assembly 332 has a problem, the other drive assembly can still operate normally, thereby improving the reliability of the liquid cooling device 100. It should be understood that in other embodiments, the coolant drive device 33 may also include more drive assemblies to further improve the redundancy performance of the liquid cooling device 100.

[0082] In some embodiments, Figure 4 and Figure 5 As shown, the guide assembly 34 includes a first guide 341 and a second guide 342 and a third guide 343 arranged above the first guide 341. The liquid flow channel in the second guide 342 is communicated with the circulation pump outlet 3332 of the first circulation pump 333. The liquid flow channel in the third guide 343 is communicated with the circulation pump outlet of the second circulation pump. The liquid flow channel in the first guide 341 is connected to the heat exchanger 32. The liquid flow channels in the second guide 342 and the third guide 343 are respectively communicated with the liquid flow channel in the first guide 341. By providing the first guide 341, the second guide 342 and the third guide 343, on the one hand, the first coolant can be reliably guided from the coolant driving device 33 to the heat exchanger 32, and on the other hand, the volume of the first coolant in the second cavity 22 can be displaced, 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.

[0083] like Figure 4 and Figure 5 As shown, the second inclined portion 3411 described above may be provided on the second guide member 342 and the third guide member 343 so as to be positioned corresponding to the first inclined portion 3303 on the first driving assembly 331 and the second driving assembly 332 , respectively.

[0084] In other embodiments, the guide assembly 34 may have other structures to guide the first coolant from the coolant driving device 33 to the heat exchanger 32 , and the scope of the present disclosure is not limited in this regard.

[0085] As described above, the heat exchanger 32 can cool the first coolant using the second coolant. Figure 8 An exemplary structure of the heat exchanger 32 is described below. Figure 8 As shown, the heat exchanger 32 is a plate heat exchanger, which includes an outer cavity 320 and an inner cavity (not shown) surrounded by the outer cavity 320. The outer cavity 320 includes a first liquid inlet 321 and a first liquid outlet 322. The first liquid inlet 321 is used to connect to the liquid flow channel in the guide assembly 34 to receive the first coolant, and the first liquid outlet 322 is used to release the first coolant from the outer cavity 320 to the second cavity 22. The inner cavity includes a second liquid inlet 323 and a second liquid outlet 324. The second liquid inlet 323 is connected to the liquid inlet pipe 311 in the liquid circulation pipeline 31 to receive the second coolant from the cooling tower, and the second liquid outlet 324 is connected to the liquid return pipe 312 in the liquid circulation pipeline 31 to return the second coolant to the cooling tower. The first coolant in the outer cavity 320 and the second coolant in the inner cavity can form a cross-flow form of heat exchange, which enhances the heat exchange efficiency of the heat exchanger 32.

[0086] In other embodiments, the heat exchanger 32 may be other types of heat exchangers, and the scope of the present disclosure is not limited in this regard.

[0087] 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.

[0088] Fig. 9 FIG. 9 is a schematic diagram showing a structure of a liquid cooling system 900 according to an embodiment of the present disclosure. Fig. 9 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 8 Any of the immersion liquid cooling devices 100 described.

[0089] 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.

[0090] 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 31 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.

[0091] 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 the first cooling liquid; and a primary side cooling liquid supply system (such as a cooling tower), which is connected to the liquid circulation pipeline 31 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.

[0092] 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.

[0093] 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.

[0094] The embodiment of the present disclosure provides a liquid cooling system design with an internally integrated 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 the coolant drive device above the heat exchanger, the coolant drive device can be withdrawn from the cabinet separately, which facilitates the maintenance of the coolant drive device and shortens the maintenance time of the coolant drive device.

[0095] 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 a side wall (211) of the first cavity (21), the first cavity (21) being used to accommodate electronic equipment to be cooled, the side 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 adapted to be inserted into the second cavity (22) via an opening (221) on the second cavity (22), the heat exchange module (3) comprising a heat exchanger (32), a coolant driving device (33) and a guide assembly (34), the heat exchanger (32) being used to receive a second coolant via a liquid circulation pipeline (31) and to cool the first coolant using the second coolant, the coolant driving device (33) being used to drive the first coolant to circulate between the second cavity (22) and the first cavity (21), and the guide assembly (34) includes a liquid flow channel for guiding the first coolant from the coolant driving device (33) to the heat exchanger (32), wherein when the heat exchange module (3) is inserted into the second cavity (22), the coolant driving device (33) is closer to the opening (221) of the second cavity (22) than the heat exchanger (32), and the coolant driving device (33) can be drawn out of the second cavity (22) when the heat exchanger (32) and the guide assembly (34) are maintained in the second cavity (22).

2. The immersion liquid cooling device (100) according to claim 1, characterized in that: The heat exchange module (3) further comprises a first bracket (30), the heat exchanger (32) and the guide assembly (34) are supported by the first bracket (30), and The coolant driving device (33) includes a first driving component (331), the first driving component (331) includes a second bracket (330) and a first circulation pump (333) supported by the second bracket (330), the second bracket (330) is detachably connected to the first bracket (30), wherein when the second bracket (330) is connected to the first bracket (30), the circulation pump outlet (3332) of the first circulation pump (333) is connected to the liquid flow channel in the guide component (34).

3. The immersion liquid cooling device (100) according to claim 2, characterized in that: The first bracket (30) includes a first supporting portion (301) and a second supporting portion (302), the second bracket (330) is detachably connected to the first supporting portion (301), the heat exchanger (32) and the guide assembly (34) are 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) is located outside the second cavity (22).

4. The immersion liquid cooling device (100) according to claim 3, 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.

5. The immersion liquid cooling device (100) according to claim 3, characterized in that: A display screen (35) for displaying the operating status of the coolant drive device (33) is provided on a side of the first support portion (301) facing away from the second cavity (22).

6. The immersion liquid cooling device (100) according to claim 3, characterized in that: The heat exchanger (32) and the guide assembly (34) are fixed to the second support portion (302) by fasteners (37).

7. The immersion liquid cooling device (100) according to claim 3, characterized in that: The second bracket (330) includes a third supporting portion (3301) and a fourth supporting portion (3302), the third supporting portion (3301) is detachably connected to the first supporting portion (301), and the first circulation pump (333) is supported by the fourth supporting portion (3302).

8. The immersion liquid cooling device (100) according to claim 7, characterized in that: A handle (335) is provided on the side of the third support portion (3301) facing away from the first circulation pump (333).

9. The immersion liquid cooling device (100) according to claim 7, characterized in that: The fourth supporting portion (3302) includes a first inclined portion (3303) inclined relative to the extraction direction of the first driving assembly (331), and the circulation pump outlet (3332) of the first circulation pump (333) is arranged at the first inclined portion (3303), and The guide assembly (34) includes a second inclined portion (3411) inclined relative to the withdrawal direction, wherein when the third support portion (3301) is connected to the first support portion (301), the second inclined portion (3411) is in contact with the first inclined portion (3303).

10. The immersion liquid cooling device (100) according to claim 2, characterized in that: The first driving assembly (331) further includes a filter (334) disposed at a circulation pump inlet (3331) of the first circulation pump (333).

11. The immersion liquid cooling device (100) according to claim 2, characterized in that: The coolant drive device (33) further comprises a second drive assembly (332), wherein the second drive assembly (332) comprises a third bracket and a second circulation pump supported by the third bracket, wherein the third bracket is detachably connected to the first bracket (30).

12. The immersion liquid cooling device (100) according to claim 11, characterized in that: The guide assembly (34) includes a first guide member (341) and a second guide member (342) and a third guide member (343) arranged above the first guide member (341); the liquid flow channel in the second guide member (342) is connected to the circulation pump outlet (3332) of the first circulation pump (333); the liquid flow channel in the third guide member (343) is connected to the circulation pump outlet of the second circulation pump; and the liquid flow channel in the first guide member (341) is connected to the heat exchanger (32).

13. The immersion liquid cooling device (100) according to claim 1, characterized in that: The heat exchanger (32) is a plate heat exchanger, comprising an outer cavity (320) and an inner cavity surrounded by the outer cavity (320). The outer cavity (320) comprises a first liquid inlet (321) and a first liquid outlet (322), wherein the first liquid inlet (321) is connected to a liquid flow channel in the guide assembly (34) to receive the first cooling liquid, and the first liquid outlet (322) is used to release the first cooling liquid from the outer cavity (320) into the second cavity (22), and The inner cavity comprises a second liquid inlet (323) and a second liquid outlet (324), wherein the second liquid inlet (323) is connected to a liquid inlet pipe (311) in the liquid circulation pipeline (31) to receive the second cooling liquid, and the second liquid outlet (324) is connected to a liquid return pipe (312) in the liquid circulation pipeline (31).

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 driving device (33) is adjacent to the second group of through holes (62), and the 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 heat exchange module (3) further comprises a liquid block (38), wherein when the heat exchange module (3) is inserted into the second cavity (22), the liquid block (38) can be at least partially immersed in the first cooling liquid 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.

Images