Electronic device liquid cooling system

Abstract

An electronic device liquid cooling system, comprising a liquid guide tube, a liquid cooling body and a multi-way structure. The liquid cooling body and the multi-way structure are communicated by means of the liquid guide tube. The electronic device liquid cooling system further comprises a liquid collecting device. The liquid collecting device continuously surrounds the multi-way structure, the liquid guide tube and the liquid cooling body, and is provided with a window to expose a heat receiving surface of the liquid cooling body. In the electronic device liquid cooling system, by continuously surrounding the liquid guide tube, the liquid cooling body and the multi-way structure, leaked liquid can be effectively collected in all directions, so that when leakage occurs to the liquid cooling system, the duration during which an electronic device can be ensured to continue working can be more fully prolonged. In addition, the provision of the window at the heat receiving surface also takes into account the working characteristics of the heat receiving surface, so that leakage is basically avoided, thereby meeting both heat exchange requirements and the need to enclose possible leakage points. The electronic device liquid cooling system can effectively solve the problem of low liquid leakage safety of electronic device liquid cooling systems.

Description

Liquid cooling system for electronic equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 19, 2024, with application number 202410084738.4 and invention name “A Liquid Cooling System for Electronic Equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of electronic equipment, and more particularly to a liquid cooling system for electronic equipment. Background Art

[0003] Servers, and even other electronic devices, generally require heat dissipation from heat-generating components such as GPUs, CPUs, and switches. Current air cooling systems, however, are too large to be suitable for some electronic devices. Current liquid cooling systems, on the other hand, are generally smaller, particularly near the heat-generating components, occupying a smaller area.

[0004] The inventors have found through research that it is difficult to ensure that the liquid cooling system will not leak during long-term use. If leakage occurs, especially leakage to electronic equipment, it will cause huge losses.

[0005] During the process of realizing the present invention, the inventors discovered that there are at least the following problems in the prior art: leakage of the liquid cooling system of the electronic equipment.

[0006] Summary of the Invention

[0007] In view of this, an object of the present invention is to provide an electronic equipment liquid cooling system, which can effectively solve the problem of leakage of the electronic equipment liquid cooling system.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A liquid cooling system for electronic equipment includes a liquid conduit, a liquid cooling body, and a multi-pass structure, wherein the liquid conduit is connected between the liquid cooling body and the multi-pass structure. The system also includes a liquid collection device, which continuously surrounds the multi-pass structure, the liquid conduit, and the liquid cooling body and has a window to expose the heated surface of the liquid cooling body.

[0010] When the above-mentioned electronic equipment liquid cooling system is used, the heated surface of the liquid cooling body is placed against the heating element of the electronic equipment. The cooling liquid is then transported to the liquid cooling body through the multi-pass structure and the liquid conduit, where it absorbs heat and is then transported out to carry away the heat. If a leak occurs at any of the multi-pass structure, the liquid conduit, or the liquid cooling body or at any of the connections, it will be collected in advance by the liquid collection device, which can fully prevent leakage. In addition, a window is left on the heated surface, which not only allows the heated surface to be exposed to absorb heat, but also, due to the working requirements of the heated surface itself, leakage generally does not occur here, thus preventing leakage as a whole. In the above-mentioned electronic equipment liquid cooling system, by continuously surrounding the liquid conduit, the liquid cooling body, and the multi-pass structure, leaked liquid can be effectively collected in all directions, which can more fully extend the time it takes for the electronic equipment to continue to operate after the liquid cooling system leaks. In addition, the window is set on the heated surface to take into account the working characteristics of the heated surface itself, which basically prevents leakage and can ensure heat exchange needs while meeting the need to surround possible leakage points. In summary, the electronic equipment liquid cooling system can effectively solve the problem of low safety due to liquid leakage in the electronic equipment liquid cooling system.

[0011] In some technical solutions, a detector for detecting liquid leakage is also included; the detector is used to obtain the liquid leakage detection result before the liquid collection device is saturated.

[0012] In some technical solutions, a suction device is also included; the liquid collection device is a protective shell, and a collection cavity is formed between the protective shell and the multi-channel structure, the liquid guide tube and the liquid cooling body; the suction device can extract liquid from the collection cavity.

[0013] In some technical solutions, the liquid-cooling body includes a heated plate and a cover plate; a first sealed connection seam is formed between the cover plate and the heated plate to seal the liquid-cooling cavity therebetween, the heated plate and the window opening are sealed to form a second sealed connection seam surrounding the first sealed connection seam, and the cavity portion between the first sealed connection seam and the second sealed connection seam is connected to the collection cavity.

[0014] In some technical solutions, the protective shell includes a first collection box body arranged at the liquid cooling body, a protective outer tube arranged on the liquid guide tube, and a second collection box body arranged at the multi-pass structure; both ends of the protective outer tube extend into the first collection box body and the second collection box body.

[0015] In some technical solutions, the first collecting box body includes a trough body with an upward opening and a first cover covering the trough body slot, the window is provided at the bottom of the trough body, and the four edges of the heated plate are sealed with the edges of the window; a gap is formed between the four edges of the cover and the inner wall of the trough body, so that liquid leaked from the sealed connection between the heated plate and the cover can enter the side of the cover away from the heated plate through the gap; a sheet detector for detecting whether there is liquid leakage is laid on the cover.

[0016] In some technical solutions, the second collection box body includes a liquid receiving tray and a second cover on the upper side of the liquid receiving tray; the side of the liquid receiving tray away from the liquid cooling body is tilted downward and is provided with a detector for detecting whether there is liquid leakage.

[0017] In some technical solutions, the second cover is provided with a transparent portion for observing the multi-channel structure; the liquid receiving tray has supporting feet along the extension direction of the multi-channel structure, and both ends of the liquid receiving tray are obliquely installed on the supporting feet at both ends.

[0018] In some technical solutions, the end portion of the protective outer tube located inside the first collecting box body is connected to the inner cavity of the first collecting box body.

[0019] In some technical solutions, the protective outer tube includes a transparent tape rolled into a tube and a self-sealing strip connecting the lateral edges of the transparent tape along the extension direction; along the extension direction of the transparent tape, a water leakage detection tape is affixed to the inner side of the transparent tape. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] FIG1 is a schematic diagram of the structure of a server provided in an embodiment of the present invention;

[0022] FIG2 is a schematic structural diagram of a liquid cooling system for an electronic device according to an embodiment of the present invention;

[0023] FIG3 is a schematic structural diagram of a first collection box body provided by an embodiment of the present invention;

[0024] FIG4 is a schematic diagram of the internal structure of a first collection box body provided by an embodiment of the present invention;

[0025] FIG5 is a schematic diagram of a cross-sectional structure of a middle portion of a first collection box body provided by an embodiment of the present invention;

[0026] FIG6 is a schematic diagram of the side structure of the first collection box body provided by an embodiment of the present invention;

[0027] FIG7 is a schematic structural diagram of a liquid cooling plate provided in an embodiment of the present invention;

[0028] FIG8 is a schematic structural diagram of a second collection box body provided in an embodiment of the present invention;

[0029] FIG9 is a schematic diagram of the cross-sectional structure of the second collecting box body provided by an embodiment of the present invention.

[0030] The markings in the accompanying drawings are as follows: liquid guide tube 1, liquid cooling body 2, multi-channel structure 3, window 4, second sealing connection seam 5, first collection box body 6, second collection box body 7, protective outer tube 8, sealing ring 9, electronic component 10; heated plate 2-1, cover plate 2-2, first sealing connection seam 2-3, liquid cooling chamber 2-4; trough body 6-1, first cover 6-2, gap 6-3; liquid receiving tray 7-1, second cover 7-2, support foot 7-3. DETAILED DESCRIPTION

[0031] An embodiment of the present invention discloses a liquid cooling system for electronic equipment, which can effectively solve the problem of leakage of the liquid cooling system for electronic equipment.

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Please refer to Figures 1 to 9, Figure 1 is a structural schematic diagram of the server provided in an embodiment of the present invention; Figure 2 is a structural schematic diagram of the electronic equipment liquid cooling system provided in an embodiment of the present invention; Figure 3 is a structural schematic diagram of the first collection box body provided in an embodiment of the present invention; Figure 4 is a schematic diagram of the internal structure of the first collection box body provided in an embodiment of the present invention; Figure 5 is a schematic diagram of the middle cross-sectional structure of the first collection box body provided in an embodiment of the present invention; Figure 6 is a schematic diagram of the side structure of the first collection box body provided in an embodiment of the present invention; Figure 7 is a schematic diagram of the structure of the liquid cooling plate provided in an embodiment of the present invention; Figure 8 is a schematic diagram of the structure of the second collection box body provided in an embodiment of the present invention; Figure 9 is a schematic diagram of the cross-sectional structure of the second collection box body provided in an embodiment of the present invention.

[0034] In some embodiments, this embodiment provides an electronic device liquid cooling system primarily for dissipating heat from electronic components 10 of the electronic device. Electronic components 10 may be one or more of the following: a GPU (graphics processing unit), a CPU (central processing unit), and a switch. Specifically, the electronic device liquid cooling system primarily includes a liquid conduit 1, a liquid cooling body 2, a multi-pass structure 3, and a liquid collection device.

[0035] The liquid cooling body 2 is generally a liquid cooling plate, and of course, in some states, it can also be a block structure. At least one side of the liquid cooling body 2 is a heating surface, which is used to abut against the heat dissipation surface of the electronic component 10 to be dissipated. At this time, the heating surface of the liquid cooling body 2 and the heat dissipation surface of the electronic component 10 are in thermal contact. When the liquid cooling body 2 is a liquid cooling plate, generally one side of the plate surface is the heating surface, and generally the lower side of the liquid cooling plate is the heating surface, which is abutted against the upper side of the electronic component 10. A liquid cooling cavity 2-4 is formed inside the liquid cooling body 2, and the heat absorbed by the heating surface can be taken away by discharging the liquid in the liquid cooling cavity 2-4. In order to ensure the flow direction of the internal fluid, the liquid cooling cavity 2-4 is generally separated into a winding flow channel by structures such as partitions.

[0036] The multi-way structure 3 is used for water distribution and / or water collection, and generally includes a water distributor and / or a water collector. In some applications, the multi-way structure 3 is also called a water distributor and a water collector. The water distributor is a general term for a water distributor and a water collector, and may include one of the two or both. The multi-way structure 3 preferably includes both a water distributor and a water collector. It should be noted that, generally speaking, the liquid delivery main pipe for delivering liquid to the multi-way structure 3, and the liquid return main pipe for returning liquid, are relatively strong, basically will not leak, and may not be completely surrounded by the liquid collection device. The liquid delivery main pipe and the liquid return main pipe are connected to the condensing equipment to cool the liquid returned from the liquid return main pipe, and then send it out to the multi-way structure 3 through the liquid delivery main pipe. In order to accelerate the flow of fluid, a pressure pump is generally provided.

[0037] The liquid-cooling body 2 and the multi-pass structure 3 are connected directly or indirectly through a liquid guide tube 1 to guide liquid between the two. It should be noted that when multiple liquid-cooling bodies 2 are provided, there may be a liquid guide tube 1 with one end connected to a liquid-cooling body 2, and the other end connected to the multi-pass structure 3 through another liquid-cooling body 2. Generally speaking: at least one liquid guide tube 1 serves as a liquid supply tube, one end of which is connected to the water outlet port of the water distributor in the multi-pass structure 3, and the other end is connected to the inlet of the liquid cooling cavity 2-4 of the liquid cooling body 2; at least one liquid guide tube 1 serves as a liquid return tube, one end of which is connected to the water inlet port of the water collector in the multi-pass structure 3, and the other end is connected to the outlet of the liquid cooling cavity 2-4 of the liquid cooling body 2. Of course, in some cases, one or more of the liquid guide tubes 1 can be used for both infusion and return, such as infusion and return in different time periods.

[0038] The liquid collecting device continuously surrounds the multi-way structure 3, the liquid conduit 1 and the liquid cooling body 2. The multi-way structure 3, the liquid conduit 1 and the liquid cooling body 2 are all surrounded by the liquid collecting device, and because they are continuously surrounded, the connection between the multi-way structure 3 and the liquid conduit 1, as well as the connection between the liquid conduit 1 and the liquid cooling body 2 are all surrounded by the liquid collecting device. The leaked liquid can be collected by the liquid collecting device and will not fall directly on the electronic component 10, so that after the leakage occurs, the electronic device can continue to be used safely for a period of time. The liquid collecting device refers to a device that confines the corresponding liquid to a specific position, including but not limited to the following two types: one is a liquid storage cavity formed on a shell or other closed structure, which is confined in the liquid storage cavity; the other is a water absorbent body, which is confined in the water absorbent body, such as absorbent cotton.

[0039] In addition, the liquid collection device also needs to have a window 4 to expose the heated surface of the liquid-cooled body 2, so that the heated surface of the liquid body can be in close contact with the corresponding electronic component 10. It should be noted that the edge of the window 4 should be in sealed contact with the liquid-cooled body 2, and preferably in sealed contact with the one-piece molded structure of the liquid-cooled body 2 with the heated surface, so that the collection part of the liquid collection device can surround the connection between the split structures of the liquid-cooled body 2 to collect the leaked liquid there. The split in the split structure is a relative concept to the one-piece molded structure, and the splits can be welded, bonded, screwed, etc. The size of the window 4 is set according to the heated surface that needs to be exposed.

[0040] In some embodiments, when using the above-mentioned electronic device liquid cooling system, the heated surface of the liquid cooling body 2 is placed against the heating element of the electronic device. The cooling liquid is then transported to the liquid cooling body through the multi-pass structure 3 and the liquid conduit 1, where it absorbs heat and is then transported out to remove the heat. If a leak occurs at any of the multi-pass structure 3, the liquid conduit 1, or the liquid cooling body 2, or at any of the connections, it will be pre-collected by the liquid collection device, effectively preventing leakage. Furthermore, a window 4 is provided on the heated surface, which not only allows the heated surface to be exposed to absorb heat, but also, due to the operating requirements of the heated surface itself, generally prevents leakage. Therefore, leakage is generally avoided overall. In the above-mentioned electronic device liquid cooling system, by continuously surrounding the liquid conduit 1, the liquid cooling body 2, and the multi-pass structure 3, leaked liquid can be effectively collected in all directions, which can further extend the time it takes for the electronic device to continue operating after a leak in the liquid cooling system. Furthermore, the window 4 is provided on the heated surface to take into account the operating characteristics of the heated surface itself, thereby essentially preventing leakage and ensuring heat exchange requirements while meeting the need to surround potential leak points. In summary, the electronic equipment liquid cooling system can effectively solve the problem of low safety due to liquid leakage in the electronic equipment liquid cooling system.

[0041] In some instances, it is generally necessary to notify the user of a leak before the liquid collection device becomes saturated. This allows the user to quickly perform any necessary operations required for an impending shutdown, such as saving and / or backing up data, or stopping certain programs. Saturation refers to the inability of the liquid collection device to continue collecting liquid, as typical liquid collection devices have a limited collection capacity.

[0042] As for whether the liquid cooling system is leaking, if the liquid collection device can be observed with the naked eye when collecting liquid, then it can be monitored by naked eye to detect leakage before the liquid collection device is saturated. For example, if a liquid collection device uses a transparent bag for collection, leakage can be observed with the naked eye.

[0043] However, regardless of whether it can be observed with the naked eye, a detector can be provided to detect whether there is a leak. Of course, the detector is used to obtain the leakage detection result before the liquid collecting device is saturated. Obtaining the leakage detection result means detecting the leakage. Before obtaining the leakage detection result and before the liquid collecting device is saturated, there is still a certain amount of time to allow the user to take corresponding measures. The specific detector can be a liquid detector to detect whether there is liquid. The liquid detector can be laid in the liquid collecting device to indicate that there is a leak when it is detected that there is liquid in the liquid collecting device. Of course, the detector can also be used to determine whether there is a leak by pressure changes in places such as the liquid guide tube 1, the liquid cooling body 2 and the multi-pass structure 3. The specific detector detection method can be set accordingly according to specific needs.

[0044] Generally, different detectors are positioned in the liquid conduit 1, the liquid cooling body 2, and the multi-pass structure 3, respectively, to expedite detection results. The longer a user can operate the electronic device after a leak in the liquid cooling system occurs, the better. This allows for earlier detection of leaks in the liquid cooling system and / or increases the collection capacity of the liquid collection device. The former allows for the detector to be placed as close to the leak point as possible, while the latter allows for increased capacity of the liquid collection device.

[0045] In some embodiments, the liquid collection device can be a protective shell that continuously surrounds the liquid conduit 1, the liquid-cooling body 2, and the multi-pass structure 3. In this case, a collection cavity is formed between the protective shell, the multi-pass structure 3, the liquid conduit 1, and the liquid-cooling body 2. In this case, when a leak occurs, whether it is spraying or leaking, it is collected by the protective shell wall and confined within the collection cavity. The collection capacity is set accordingly to the size of the protective shell. It should be noted that the protective shell can be a one-piece shell structure, a split shell structure, or a combination of multiple shell structures.

[0046] In some instances, a suction device may be provided, which is used to extract liquid from the collection chamber, and the extracted liquid is stored separately or discharged from the server as waste liquid. The number of suction ports of the suction device and the distribution position relationship can be set as needed. For example, a suction port can be provided at each liquid cooling plate and the multi-pass structure 3, and the protective shell portion at the liquid guide tube 1 is connected to the protective shell portion at the liquid cooling plate, so that the leaked liquid can be introduced into the protective shell of the liquid cooling body and / or the protective shell of the multi-pass structure 3 to extract liquid from the protective shell of the liquid cooling body and the protective shell of the multi-pass structure 3. The suction device includes a suction pipe and a negative pressure device, and the inlet of the negative pressure device can be divided into multiple suction ports through multiple multi-pass joints so as to be able to extend into the protective shells of each liquid cooling plate and the protective shell of the multi-pass structure 3.

[0047] By providing a suction device, when the volume of the collection cavity formed by the protective shell is limited, liquid can be continuously pumped out to avoid saturation of the collection cavity, thereby increasing the time between obtaining the leakage detection result and saturation of the liquid collection device.

[0048] In some embodiments, the liquid cooling body needs to form a liquid cooling cavity 2-4, and fins or other structures need to be provided in the liquid cooling cavity 2-4 to form a curved flow channel. Although the above-mentioned liquid cooling body can be formed by 3D integrated printing, the cost is relatively high. A liquid cooling body mainly includes a heated plate 2-1 and a cover plate 2-2, and a sealed connection is formed between the cover plate 2-2 and the heated plate 2-1 to form a first sealed connection seam 2-3. The first sealed connection seam 2-3 seals the liquid cooling cavity 2-4 between the cover plate 2-2 and the heated plate 2-1, and the liquid inlet and outlet of the liquid cooling cavity 2-4 are generally provided on the cover plate 2-2. The sealed connection at the first sealed connection seam 2-3 is generally a welding connection, but a sealed connection can also be achieved by a sealing ring, gluing, etc. Since there is high-pressure liquid in the liquid cooling plate, the first sealed connection seam 2-3 between the cover plate 2-2 and the heated plate 2-1 is likely to leak, that is, the possibility of the first sealed connection seam 2-3 rupturing is much greater than the possibility of the heated plate 2-1 rupturing.

[0049] Based on the above exploration, in some embodiments, the heated plate 2-1 and the window 4 can be sealed and connected to form a second sealed joint 5 surrounding the first sealed joint 2-3, and the cavity between the first sealed joint 2-3 and the second sealed joint 5 is partially connected to the collection chamber. The second sealed joint 5 is provided so that the liquid leaking from the first sealed joint 2-3 can be blocked by the second sealed joint 5 and retained in the collection chamber, effectively preventing leakage from the window 4. It should be noted that because the first sealed joint 2-3 is in a working state for a long time and the internal liquid is a high-pressure liquid, while the second sealed joint 5 is in a working state only when leakage occurs, and the pressure of the leaked liquid is much lower than the internal fluid pressure of the liquid-cooling chamber 2-4, the possibility of rupture of the first sealed joint 2-3 is much greater than that of the second sealed joint 5, and the possibility of rupture of the second sealed joint 5 is very low.

[0050] The second sealing seam 5 can be sealed by welding, integral molding, a sealing ring 9, gluing, or other methods, but is not limited to the above methods. The first sealing seam 2-3 and the second sealing seam 5 can be the same or different, and can be configured accordingly as needed. To facilitate installation of the protective shell, the second sealing seam 5 can be sealed using a sealing ring 9. For example, an annular groove can be provided on the heated plate 2-1 to accommodate the annular sealing ring 9, which can be placed against the edge of the window 4 and then fixed with screws or bolts facing the window 4 to compress the sealing ring 9 to ensure a reliable seal.

[0051] As shown in the accompanying drawings, the cover plate 2-2 is located within the window 4, with a gap channel formed between the edge and the side wall of the window 4. The heated plate 2-1 is located outside the window 4, with its edges protruding from the edge of the cover plate 2-2 and resting against the outer surface of the window 4 in sealed contact, forming the aforementioned second sealed joint 5. In the event of leakage, the fluid leaking from the first sealed joint 2-3 at the edge of the cover plate 2-2 flows laterally. When it flows between the edge and the side wall of the window 4, the fluid is blocked by the second sealed joint 5 formed along the edge of the window 4, preventing it from flowing out. The fluid then flows through the gap channel into the collection chamber of the protective shell.

[0052] In some embodiments, the protective shell as described above can be a single structure, such as a protective shell that adopts a relatively large box structure, with a window 4 provided at the bottom of the box structure, and holes for the main pipe and / or suction pipe provided on the upper or surrounding parts, and the liquid cooling body 2, the liquid guide tube 1 and the multi-pass structure 3 are all located inside the box structure. It should be noted that the liquid guide tube 1 and the multi-pass structure 3 can be completely surrounded by the box structure, that is, all located in the box cavity of the box structure, and the heated surface of the liquid cooling body 2 needs to be exposed from the window 4 to be close to the electronic component 10 to be dissipated heat, and the rest is located inside the box structure. As shown in the accompanying drawings, the heated plate 2-1 can be located on the outside of the box structure and sealed along the window 4 to prevent leakage. When a suction device is provided, the suction port can be provided at each corner of the box structure, or at the center, to uniformly extract the liquid. By providing a large box structure, it is not only convenient to install, but also convenient to provide better protection and form more cavities.

[0053] In some embodiments, considering that a unified protective shell is not only large in size but also has relatively large interference, it is affected by the actual scene and cannot be well uniformly configured. Based on this, it is considered here that the protective shell includes a first collection box body 6 arranged at the liquid cooling body 2, a protective outer tube 8 sleeved on the liquid guide tube 1, and a second collection box body 7 arranged at the multi-pass structure 3. When multiple liquid cooling bodies 2 are provided, multiple first collection box bodies 6 can be provided, and the first collection box body 6 can be provided with one or more windows 4 to place one or more liquid cooling bodies 2. Correspondingly, one or more liquid guide tubes 1 can be provided in the protective outer tube 8. Correspondingly, a window 4 needs to be provided on the first collection box body 6 to expose the heated surface of the leakage plate, and the second collection box body 7 generally wraps the entire manifold. Of course, in some embodiments, one or all of the first collection box body 6 and the second collection box body 7 can also be a collection bag.

[0054] In some embodiments, the ends of the protective outer tube 8 preferably extend into the first collection box body 6 and the second collection box body 7 to simplify the installation between the protective outer tube 8 and the first collection box body 6 and the second collection box body 7, thereby achieving sufficient protection. To prevent leaked liquid from the protective outer tube 8 from flowing outward along the tube wall, a baffle can be installed, or a sealing ring can be installed between the protective outer tube 8 and the corresponding perforations in the first collection box body 6 and the corresponding perforations in the second collection box body 7.

[0055] In some embodiments, a first collecting box body 6 is provided to collect leaked liquid at the liquid cooling plate, and the first collecting box body 6 includes a trough body 6-1 with an upward opening and a first cover 6-2 covering the trough body 6-1 slot, wherein a window 4 is provided at the bottom of the trough body 6-1, and the edges of the four sides of the heated plate 2-1 are sealed with the edges of the window 4, forming the above-mentioned second sealing connection seam 5, and a gap 6-3 is formed between the edges of the four sides of the cover plate 2-2 and the inner wall of the trough body 6-1, so that the liquid leaked at the sealed connection between the heated plate 2-1 and the cover plate 2-2 can enter the side of the cover plate 2-2 away from the heated plate 2-1 through the gap 6-3, that is, the liquid leaked from the first sealing connection seam 2-3 will not flow out from the edge of the window 4 because it is blocked by the second sealing connection seam 5, and will flow upward under the guidance of the above-mentioned gap 6-3 into the cavity part of the trough body 6-1 located on the side of the cover plate 2-2 away from the heated plate 2-1. On the groove cavity of the groove body 6-1, the cavity portion located on the side of the cover plate 2-2 away from the heated plate 2-1 can be used as a collection cavity or as a part of the collection cavity.

[0056] In some embodiments, the cover plate 2-2 is on a side away from the heated plate 2-1, which is generally the upper side of actual application. On this side, a liquid inlet and outlet are generally provided through the cover plate 2-2 to connect to the liquid cooling chamber 2-4, and a joint is generally provided on the side of the cover plate 2-2 away from the heated plate 2-1 for connecting the liquid guide tube 1, and the joint is located in the groove cavity of the groove body 6-1 and is sealed by the first cover 6-2, so that liquid leaking from the joint will also be confined to the groove cavity of the groove body 6-1.

[0057] In some embodiments, considering that the slot opening of the tank body 6-1 is generally facing upward in practical applications, the first cover and the tank body 6-1 can be sealed together, or the first cover 6-2 can simply cover the slot opening of the tank body 6-1. The opening wall of the first cover is preferably sleeved on the outside of the tank body 6-1, but it can also be inserted into the inside of the tank body 6-1 and in sealed contact with the inner wall of the tank body 6-1.

[0058] The inlet for the catheter 1 can be provided on the trough body 6-1 or on the first cover 6-2, preferably on the wall of the opening of the first cover 6-2. For example, the wall of the opening of the first cover 6-2 may be provided with a groove, so that after the catheter 1 is installed, the first cover 6-2 can be placed on the trough body 6-1, with the groove being locked onto the catheter 1. The first cover 6-2 can be fixed to the trough body 6-1 by screws.

[0059] In some embodiments, a trough 6-1 of the first collection box 6 is provided, which can serve as a mounting structure for the liquid-cooling body 2. Specifically, the liquid-cooling body 2 is mounted on the trough 6-1 via a connecting structure, and a laterally extending connecting plate is provided on the outside of the trough 6-1. The connecting plate is provided with a connecting portion for connecting to the electronic device housing, thereby securing the liquid-cooling body 2 to the electronic device housing.

[0060] In some embodiments, the tank body 6-1 can be made of plastic to reduce overall weight. Of course, the tank body 6-1 can also be made of metal or other highly thermally conductive plastic. The tank body 6-1 is provided with the aforementioned connecting plate, which covers other low-heat-generating electronic components to dissipate heat from these components. After the heat is transferred to the connecting plate, it is transferred to the liquid cooling body 2 through other structures of the tank body 6-1, thereby achieving heat dissipation.

[0061] In some embodiments, when a suction device is provided, the suction pipe of the suction device can be extended into the groove cavity of the groove body 6-1 through the above-mentioned first cover 6-2 or the groove body 6-1. In order to facilitate fixation and ensure the suction effect, a fixed connector can be provided to fix it on the cover plate 2-2. In order to achieve a better suction effect, the upper side of the cover plate 2-2 can be provided with a groove to better collect the liquid for convenient suction. Furthermore, the fixed connector can include a transverse plate, one end of the transverse plate is located outside the groove and is mounted on the cover plate 2-2 by screws, the other end of the transverse plate is suspended on the groove, and the side of the transverse plate facing the bottom of the groove has a raised cylindrical portion, the raised cylindrical portion extends deep into the groove, and the side of the transverse plate away from the groove has a connecting column to match the nozzle of the suction pipe. The hole in the connecting column passes through the transverse plate and the cylindrical portion to face the bottom of the groove. By extending the cylindrical portion into the groove, the gap between the cylindrical portion and the groove wall can be reduced, which can better ensure the suction effect.

[0062] In some embodiments, one first collection box 6 may correspond to one liquid-cooling body 2 , so that each liquid-cooling body 2 can be independently installed and independently fixed on the housing of the electronic device.

[0063] In some embodiments, in order to facilitate installation, a sheet-shaped detector may be laid on the cover plate 2 - 2 to detect whether there is leakage.

[0064] In some embodiments, a second collection box 7 is provided to collect leaked liquid at the multi-channel structure 3. The catheter 1 also needs to extend into the second collection box 7. Therefore, the joint between the catheter 1 and the multi-channel structure 3 needs to be located within the second collection box 7 so that the leaked liquid at the joint is also confined within the box cavity by the second collection box 7.

[0065] The second collection box 7 can include a liquid receiving pan 7-1 and a second cover 7-2 covering the upper side of the liquid receiving pan 7-1. The second cover 7-2 is used to confine liquid moving away from the liquid receiving pan 7-1 to the lower side of the second cover 7-2 so as to be received by the liquid receiving pan 7-1. When a suction device is provided, at least one suction port of the suction device can be provided in the liquid receiving pan 7-1.

[0066] In some embodiments, the manifold serving as the multi-channel structure 3 is significantly larger than the liquid-cooling main body 2, so the corresponding second collection box 7 is also relatively large. If the liquid collection tray 7-1 is placed horizontally, it is difficult to ensure the flatness of the tray 7-1 surface, and due to liquid tension, it is difficult to quickly remove the liquid from the tray 7-1. To address this issue, the tray 7-1 surface can be tilted, recessed, or otherwise designed to collect the liquid, and a suction port can be provided at the collection point.

[0067] For ease of manufacturing, the liquid receiving pan 7-1 is preferably tilted so that the liquid on the liquid receiving pan 7-1 is collected in one place. Furthermore, to better avoid electronic components 10, the side of the liquid receiving pan 7-1 away from the liquid cooling body 2 is preferably tilted downward so that the liquid on the liquid receiving pan 7-1 flows away from the liquid cooling body 2 and then collects on the corresponding side. A detector for detecting leakage can be located on the side of the liquid receiving pan 7-1 away from the liquid cooling body 2 to detect the presence of liquid at the collection point, thereby determining whether there is a leak.

[0068] In some embodiments, the second cover 7-2 can be provided with a transparent portion for observing the multi-pass structure 3. Of course, the second cover 7-2 can be partially transparent, or the entire second cover 7-2 can be transparent. The transparent portion allows for better observation of the leakage amount to determine whether emergency treatment is necessary. The transparent portion can be a transparent glass portion or a transparent acrylic plate portion.

[0069] In some embodiments, the surface of the liquid receiving tray 7-1 can be tilted by gradually reducing the thickness of the liquid receiving tray 7-1 toward one side to achieve the tilt of the surface. Of course, the liquid receiving tray 7-1 can also be tilted as a whole to make the surface of the liquid receiving tray 7-1 tilted.

[0070] To facilitate the tilting of the liquid receiving pan 7-1, tilted support legs 7-3 can be provided on the underside of the liquid receiving pan 7-1. Specifically, to facilitate installation, support legs 7-3 can be installed on both sides of the liquid receiving pan 7-1. Support legs 7-3 are used to connect to the housing or body of the electronic device. Specifically, the liquid receiving pan 7-1 can have support legs 7-3 extending along the direction in which the multi-channel structure 3 extends, and both ends of the liquid receiving pan 7-1 can be tilted and mounted on the support legs 7-3 at both ends.

[0071] The support leg 7-3 is preferably an L-shaped plate. The horizontal plate portion of the L-shaped plate is placed against the inner side of the housing of the electronic device and can be connected by screws. The vertical plate portion of the L-shaped plate is provided with multiple connecting holes, which are arranged in a direction away from the liquid cooling body 2. The distance between the connecting holes and the horizontal plate portion gradually decreases as the distance away from the liquid cooling body 2 is increased, so that the angle is downward. The L-shaped plates at both ends can be arranged symmetrically so that the angle of inclination is consistent at both ends.

[0072] In some embodiments, for ease of configuration, the liquid receiving tray 7-1 can include a first plate body and two side panels located at either end of the first plate body. The first plate body includes a liquid receiving panel portion, a first vertical panel portion, and a second vertical panel portion, which are integrally connected. The first vertical panel portion is located on the side of the liquid receiving panel portion close to the liquid cooling body 2 and is integrally connected. The second vertical panel portion is located on the side of the liquid receiving panel portion away from the liquid cooling body 2 and is integrally connected. At both ends in the other direction, the side panels on both sides are sealedly connected to the liquid receiving panel portion, the first vertical panel portion, and the second vertical panel portion, so that the first vertical panel portion, the second vertical panel portion, and the side panels on both sides form a groove wall structure to confine the liquid on the liquid receiving panel portion. The outer side of the side panel is connected to the support leg 7-3, that is, the vertical panel portion connected to the support leg 7-3. The second cover includes an upper panel portion and a baffle portion, which are integrally connected to each other. The upper panel portion is located on the upper side of the liquid receiving panel portion. Generally, the upper panel portion can cover the upper opening portion. In the vertical direction, the projected area of ​​the liquid receiving panel portion is generally larger than the projected area of ​​the multi-pass structure 3 and its joints. The baffle is connected to the side of the upper panel close to the liquid cooling body 2, and is provided with a slot to be clamped on the liquid guide tube 1 and the main pipe connected to the multi-way structure 3. The upper panel may be provided with an openable transparent portion.

[0073] In some embodiments, the end of the protective outer tube 8 located within the first collection box body 6 can be arranged to communicate with the inner cavity of the first collection box body 6, so that the fluid in the protective outer tube 8 can flow out from the end of the protective outer tube 8 and then enter the first collection box body 6, thereby extending the saturation time of the protective outer tube 8. Of course, when a suction device is provided, the above arrangement can facilitate suction by the suction device.

[0074] In some embodiments, the protective outer tube 8 can be an integral tube that is directly mounted on the catheter 1. However, this will make the detection band inside the protective outer tube 8 inconvenient to install. Based on this, it is preferred that the protective outer tube 8 include a transparent band rolled into a tubular shape and a self-sealing strip connecting the transverse edges of the transparent band along the extension direction, so that the transparent band is constrained by the self-sealing strip to form a tubular structure. Of course, in addition to the above-mentioned self-sealing strips, the connection of the transverse edges of the transparent band can also be other ways, such as snapping, gluing, etc. It should be noted that since the leaked liquid is generally in a low-pressure state after entering the protective outer tube 8, the connection strength of the above-mentioned connection methods can meet the needs. It should be noted that the transparent band can also be a non-transparent band, but the transparent band is easier to observe. Correspondingly, the first cover 6-2 can also be a transparent structure or partially transparent.

[0075] When a detector is provided, a water leakage detection tape is attached to the inner side of the transparent tape along the extending direction of the transparent tape to serve as the detector.

[0076] When the end of the outer tube 8 located in the first collecting box body 6 needs to be protected, it is connected to the inner cavity of the first collecting box body 6. At this time, in the first collecting box body 6, the end of the outer tube 8 can be loosely sleeved on the outside of the catheter 1.

[0077] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electronic device liquid cooling system, comprising a liquid guiding pipe (1), a liquid cooling main body (2) and a multi-way structure (3), wherein the liquid cooling main body and the multi-way structure are communicated through the liquid guiding pipe, and is characterized in that, It further includes a liquid collection device which continuously surrounds the multi-way structure, the liquid guiding pipe and the liquid cooling body, and a window (4) is opened to expose the heat receiving surface of the liquid cooling body.

2. The liquid cooling system for an electronic device according to claim 1, characterized in that, It further includes a detector for detecting liquid leakage; the detector is used to obtain the liquid leakage detection result before the liquid collection device is saturated.

3. The liquid cooling system for an electronic device according to claim 1, wherein It further includes a suction device; the liquid collection device is a protective shell, and a collection cavity is formed between the protective shell, the multi-way structure, the liquid guiding pipe and the liquid cooling body; the suction device can pump liquid out of the collection cavity.

4. The liquid cooling system for an electronic device according to claim 3, wherein, The liquid cooling body includes a heat receiving plate (2-1) and a cover plate (2-2); a first sealing joint (2-3) is formed between the cover plate and the heat receiving plate to seal the liquid cooling cavity (2-4) therebetween, and the heat receiving plate and the edge of the window are sealed and connected to form a second sealing joint (5) surrounding the first sealing joint, and the cavity part between the first sealing joint and the second sealing joint is communicated with the collection cavity.

5. The liquid cooling system for an electronic device according to claim 4, wherein The protective shell includes a first collection box body (6) arranged at the liquid cooling body, a protective outer pipe (8) sleeved on the liquid guiding pipe, and a second collection box body (7) arranged at the multi-way structure; both ends of the protective outer pipe extend into the first collection box body and the second collection box body.

6. The liquid cooling system for an electronic device according to claim 5, wherein, The first collection box body includes a trough body (6-1) with an upward opening and a first cover (6-2) covering the trough opening of the trough body. The window is opened at the bottom of the trough body, and the four peripheral edges of the heat receiving plate are sealed and connected with the window edge; a gap (6-3) is formed between the four peripheral edges of the cover plate and the inner side wall of the trough body, so that the liquid leaked from the sealed joint between the heat receiving plate and the cover plate can enter the side of the cover plate away from the heat receiving plate through the gap; a sheet detector for detecting whether there is liquid leakage is laid on the cover plate.

7. The liquid cooling system for an electronic device according to claim 6, wherein The second collection box body includes a liquid receiving tray (7-1) and a second cover (7-2) covering the upper side of the liquid receiving tray (7-1); the side of the liquid receiving tray away from the liquid cooling body is inclined downward and is provided with a detector for detecting whether there is liquid leakage.

8. The liquid cooling system for an electronic device according to claim 7, wherein The second cover is provided with a transparent part for observing the multi-way structure; the liquid receiving tray has support feet (7-3) on both sides in the extending direction of the multi-way structure, and both ends of the liquid receiving tray are inclined and installed on the two ends of the support feet (7-3).

9. The liquid cooling system for an electronic device according to claim 8, wherein The end of the protective outer pipe located in the first collection box body is communicated with the inner cavity of the first collection box body.

10. The liquid cooling system of an electronic device according to claim 9, characterized in that, The protective outer pipe includes a transparent tape rolled into a tube shape and a self-sealing strip connecting the transverse two side edges of the transparent tape along the extending direction; along the extending direction of the transparent tape, a water leakage detection tape is pasted on the inner side of the transparent tape.

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