Leakage-proof liquid cooling structure and communication equipment
By designing a liquid-proof cooling structure with a drain pipe, the leaked coolant is discharged, which solves the component damage caused by the leakage of cold plate components, improves the reliability of leakage prevention and reduces production costs.
Patent Information
- Application Number
- CN202420800454.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing cold plate components are prone to leakage after long-term use, resulting in coolant flow out and components short circuits and damage. The existing anti-leakage solutions are poorly reliable and have high production costs.
A liquid-proof cooling structure is designed, including a cold plate assembly, cooling joint, cooling pipe, leakage-proof cover and flow guide. A closed leakage-proof cavity is formed between the cold plate assembly and the leakage-proof cover, and the flow guide discharges the leaked coolant to the outside of the chassis.
It effectively avoids coolant entering the chassis, improves leakage protection reliability, reduces production costs, and avoids the problem of false alarms. It is also suitable for a variety of usage scenarios.
Smart Images
Figure CN222941080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of communication equipment, and in particular, to a leak-proof liquid cooling structure and a communication equipment. Background Art
[0002] As a heat transfer device, the cold plate assembly can be applied to any component that requires heat transfer, especially in the chassis of communication equipment, and has a good heat dissipation effect on the heat-generating components. The cold plate assembly can also be processed into different shapes according to different application scenarios to meet the needs of special scenarios. Since there is a coolant circulating flow inside the cold plate assembly, during long-term use, medium corrosion, loose connection, etc. will cause leakage of the cold plate assembly, and the coolant flows out, causing the components to short-circuit and thus damaging the components.
[0003] In the related art, the anti-leakage solution for the cold plate assembly is usually to set up a liquid accumulation tank to collect the leaked coolant. However, the volume of the liquid accumulation tank is limited. When the liquid accumulation tank is full, the leaked liquid overflows, still posing a risk to the structure inside the chassis, and the reliability is poor. There are also some solutions in which a sensor is added to the liquid accumulation tank and a corresponding alarm structure is set up to send an alarm message when the liquid leakage in the liquid accumulation tank is detected, so as to remind the personnel to handle it. Although this method avoids the problem of the leaked liquid overflowing in the liquid accumulation tank, the production cost is relatively high, and there is a hidden danger of false alarm, and the reliability still has problems. Summary of the Utility Model
[0004] The utility model provides a leak-proof liquid cooling structure and a communication equipment to at least solve the problem of poor reliability of the anti-leakage solution for the cold plate assembly in the related art.
[0005] According to an embodiment of the utility model, a leak-proof liquid cooling structure is provided, which includes a cold plate assembly, a cooling joint, a cooling pipe, a leak-proof cover and a diversion pipe. The cold plate assembly has an opposite installation side and a cooling side. The cooling joint is installed on the installation side. The cooling pipe is communicated with the cooling cavity inside the cold plate assembly through the cooling joint. The cooling pipe is used for conveying the coolant. The cooling side is used for cooling the heat-generating components in the chassis. The leak-proof cover covers the installation side of the cold plate assembly and the cooling joint. A sealed leak-proof cavity is formed between the leak-proof cover and the cold plate assembly. One end of the diversion pipe is communicated with the leak-proof cavity, and the other end of the diversion pipe extends outside the chassis to discharge the coolant leaked into the leak-proof cavity outside the chassis.
[0006] In an exemplary embodiment, the diversion pipe is sleeved on the cooling pipe, and a diversion channel is formed between the inner wall of the diversion pipe and the outer wall of the cooling pipe. The diversion channel discharges the coolant in the leak-proof cavity outside the chassis.
[0007] Alternatively, in an exemplary embodiment, the diversion pipe and the cooling pipe are independently arranged.
[0008] In an exemplary embodiment, the leak - proof cover has a top wall and a side wall surrounding the top wall. The top wall and the mounting side are oppositely arranged. The diversion pipe passes through the side wall and is in sealing fit with the side wall, and / or the cooling pipe passes through the side wall and is in sealing fit with the side wall.
[0009] In an exemplary embodiment, the side wall has a mounting hole. The inner wall of the mounting hole has an annular groove. A sealing ring is arranged in the annular groove. The diversion pipe passes through the mounting hole and is in sealing fit with the sealing ring.
[0010] In an exemplary embodiment, there is an annular connection area between the leak - proof cover and the cold plate assembly. The leak - proof liquid cooling structure further includes an annular seal, and the annular seal is located in the connection area.
[0011] In an exemplary embodiment, the leak - proof cover or the cold plate assembly has an annular sealing groove, and the annular seal is located in the sealing groove.
[0012] In an exemplary embodiment, the leak - proof cover has an annular limiting step, and the outer periphery of the cold plate assembly is in fit with the limiting step; the leak - proof cover is fixedly connected to the cold plate assembly through a plurality of fasteners.
[0013] In an exemplary embodiment, the cold plate assembly includes a bottom plate and a cover plate. The cover plate is welded to the bottom plate. The cavity between the cover plate and the bottom plate forms a cooling cavity. The cooling joint is welded to the cover plate. The leak - proof cover is in sealing connection with the bottom plate, and the connection position between the leak - proof cover and the bottom plate surrounds the cover plate.
[0014] In an exemplary embodiment, the cooling pipe includes a liquid inlet pipe and a liquid outlet pipe. The liquid inlet pipe and the liquid outlet pipe are each communicated with the cooling cavity through a cooling joint; the diversion pipe includes a first outer pipe and a second outer pipe. The first outer pipe is sleeved on the liquid inlet pipe, and the second outer pipe is sleeved on the liquid outlet pipe.
[0015] In an exemplary embodiment, there are multiple cold plate assemblies. The cooling pipes connect the multiple cold plate assemblies in series; there are multiple leak - proof covers. The multiple leak - proof covers are connected to the multiple cold plate assemblies in one - to - one correspondence and form multiple leak - proof cavities; the diversion pipes connect the multiple leak - proof cavities in series, or each leak - proof cavity is respectively connected to a diversion pipe.
[0016] In an exemplary embodiment, a quick - release joint is arranged at one end of the cooling pipe away from the cold plate assembly, and / or a quick - release joint is arranged at one end of the diversion pipe away from the cold plate assembly.
[0017] According to another embodiment of the present invention, a communication device is provided, which includes a chassis and the above - mentioned leak - proof liquid cooling structure. The cold plate assembly of the leak - proof liquid cooling structure is located inside the chassis and contacts the heat - generating components inside the chassis. The diversion pipe of the leak - proof liquid cooling structure extends outside the chassis.
[0018] In this solution, the cooling side of the cold plate assembly cools the heat-generating components inside the chassis. Since there are structures such as joints and pipelines on the installation side of the cold plate assembly, leakage is likely to occur after long-term use. In the event of leakage, the leaked coolant enters the sealed anti-leakage cavity between the anti-leakage cover and the cold plate assembly. After the coolant in the anti-leakage cavity accumulates to a certain amount, it is discharged outside the chassis through the diversion pipe, thus avoiding structural damage inside the chassis caused by the coolant. Adopting this solution, it is not restricted by the volume of the anti-leakage cavity, the coolant will not enter the chassis, improving the reliability of leak prevention. And this solution does not require setting sensors to detect liquid leakage and does not need to alarm to remind personnel to handle it in time, thus reducing production costs and avoiding the problem of false alarms.
[0019] Since in this solution, the requirement for the volume of the anti-leakage cavity is low and space is saved through pipeline layout, the external dimensions of this anti-leakage liquid cooling structure are small, which can meet various usage scenarios and can still be used in a compact 1U space. Moreover, the anti-leakage cavity in this solution is a sealed space, and the diversion pipe is connected to the outside of the chassis. In this way, this anti-leakage liquid cooling structure can be applied to both conventional horizontally installed scenarios and scenarios requiring vertical installation. For some products with high anti-leakage requirements, such as core router switch products, usually a waterless cold plate solution is adopted. Since this solution has high leak prevention reliability, it can be applied to products with high anti-leakage requirements. Brief Description of the Drawings
[0020] Figure 1 is a schematic diagram of the use of the anti-leakage liquid cooling structure according to an embodiment of the present invention;
[0021] Figure 2 is a perspective view of the anti-leakage liquid cooling structure according to an embodiment of the present invention;
[0022] Figure 3 is a cross-sectional view of the anti-leakage liquid cooling structure according to an embodiment of the present invention;
[0023] Figure 4 is Figure 3 a cross-sectional view of structures such as the anti-leakage cover and the diversion pipe in
[0024] Figure 5 is Figure 3 a schematic diagram of structures such as the cold plate assembly and the cooling joint in
[0025] Among them, the above-mentioned drawings include the following reference numerals:
[0026] 10, cold plate assembly; 11, cooling cavity; 12, bottom plate; 13, cover plate;
[0027] 20, cooling joint;
[0028] 30, cooling pipe; 31, inlet pipe; 32, outlet pipe;
[0029] 40. Leak - proof cover; 41. Leak - proof cavity; 42. Limit step;
[0030] 50. Diversion tube; 51. First outer tube; 52. Second outer tube;
[0031] 61. Sealing ring; 62. Annular seal;
[0032] 70. Quick - release joint;
[0033] 80. Chassis. Detailed implementation mode
[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way limits the present utility model and its application or use. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0035] As Figures 1 to 5 shown, the embodiment of the present utility model provides a leak - proof liquid - cooling structure, which includes a cold plate assembly 10, a cooling joint 20, a cooling tube 30, a leak - proof cover 40 and a diversion tube 50. The cold plate assembly 10 has an opposite installation side and a cooling side. The cooling joint 20 is installed on the installation side. The cooling tube 30 is communicated with the cooling cavity 11 in the cold plate assembly 10 through the cooling joint 20. The cooling tube 30 is used to convey the coolant. The cooling side is used to cool the heat - generating components in the chassis 80. The leak - proof cover 40 covers the installation side of the cold plate assembly 10 and the cooling joint 20. A sealed leak - proof cavity 41 is formed between the leak - proof cover 40 and the cold plate assembly 10. One end of the diversion tube 50 is communicated with the leak - proof cavity 41, and the other end of the diversion tube 50 extends outside the chassis 80 to discharge the coolant leaked into the leak - proof cavity 41 outside the chassis 80.
[0036] In this solution, the cooling side of the cold plate assembly 10 cools the heat - generating components inside the chassis 80. Due to structures such as the cooling joints 20 and pipelines on the installation side of the cold plate assembly 10, leakage is likely to occur after long - term use. In the case of leakage, the leaked coolant enters the sealed anti - leakage cavity 41 between the anti - leakage cover 40 and the cold plate assembly 10. After the coolant in the anti - leakage cavity 41 accumulates to a certain amount, under the pressure difference between the anti - leakage cavity 41 and the external environment of the chassis 80 or the action of the gravity of the coolant, the coolant is discharged outside the chassis 80 through the diversion pipe 50, thus avoiding structural damage inside the chassis 80 caused by the coolant. Adopting this solution, it is not restricted by the volume of the anti - leakage cavity 41, the coolant will not enter the chassis 80, improving the reliability of leakage prevention. And this solution does not require setting sensors to detect liquid leakage, nor does it need to alarm to remind personnel to handle it in time, thus reducing production costs and avoiding the problem of false alarms.
[0037] Moreover, the anti - leakage cavity 41 in this solution is a sealed space, and the diversion pipe 50 is connected to the outside of the chassis 80. In this way, this anti - leakage liquid - cooling structure can be applied to both conventional horizontally installed scenarios and scenarios requiring vertical installation.
[0038] For some products with high anti - leakage requirements, such as core routing and switching products, an anhydrous cold plate solution is usually adopted. Since this solution has high anti - leakage reliability, it can be applied to products with high anti - leakage requirements.
[0039] As Figure 1 and Figure 2 shown, in this solution, the diversion pipe 50 is sleeved on the cooling pipe 30, and a diversion channel is formed between the inner wall of the diversion pipe 50 and the outer wall of the cooling pipe 30. The diversion channel discharges the coolant in the anti - leakage cavity 41 to the outside of the chassis 80. With this arrangement, the space for arranging the diversion pipe 50 can be utilized by the space for arranging the cooling pipe 30, saving space. Moreover, the diversion pipe 50 can protect the cooling pipe 30 from being damaged, improving reliability.
[0040] Alternatively, in other embodiments not shown, the diversion pipe 50 and the cooling pipe 30 are independently arranged, that is, there is no mating relationship between the diversion pipe 50 and the cooling pipe 30, and the coolant is drained through a separate diversion pipe 50.
[0041] As Figure 3 and Figure 4 shown, the anti - leakage cover 40 has a top wall and a side wall surrounding the top wall. The top wall is arranged opposite to the installation side. The diversion pipe 50 passes through the side wall and is in sealed cooperation with the side wall, and / or the cooling pipe 30 passes through the side wall and is in sealed cooperation with the side wall. In this way, the connection position of the diversion pipe 50 or the cooling pipe 30 with the anti - leakage cover 40 does not occupy the top - wall area of the anti - leakage cover 40, that is, it does not occupy the height space of the anti - leakage liquid - cooling structure. Thus, the anti - leakage liquid - cooling structure is relatively compact and occupies little space.
[0042] Since the requirement for the volume of the leak - proof cavity 41 in this solution is low and space can be saved through pipeline layout, the external dimensions of this leak - proof liquid cooling structure are small and can meet various usage scenarios. For example, it can still be used in a compact 1U space.
[0043] Specifically, the side wall has mounting holes, the inner wall of the mounting holes has annular grooves, sealing rings 61 are arranged in the annular grooves, and the diversion pipe 50 passes through the mounting holes and is in sealed cooperation with the sealing rings 61. Through the arrangement of the sealing rings 61, the sealed connection between the diversion pipe 50 and the leak - proof cover 40 is realized, avoiding the leakage of the leak - proof cavity 41 and improving the reliability.
[0044] As Figure 3 and Figure 5 shown, there is an annular connection area between the leak - proof cover 40 and the cold plate assembly 10. The leak - proof liquid cooling structure further includes an annular seal 62, and the annular seal 62 is located in the connection area. In this way, the connection area between the leak - proof cover 40 and the cold plate assembly 10 is sealed through the annular seal 62, avoiding leakage at the connection position and improving the reliability.
[0045] Specifically, the leak - proof cover 40 or the cold plate assembly 10 has an annular sealing groove, and the annular seal 62 is located in the sealing groove. The sealing groove can play a role in limiting the annular seal 62, facilitating assembly.
[0046] In other embodiments not shown, the annular seal 62 can also be a flat gasket.
[0047] As Figure 3 and Figure 4 shown, the leak - proof cover 40 has an annular limiting step 42, and the outer periphery of the cold plate assembly 10 is matched with the limiting step 42. In this way, precise positioning of the two can be realized, improving the assembly accuracy and assembly efficiency. The leak - proof cover 40 is fixedly connected to the cold plate assembly 10 through a plurality of fasteners, ensuring the reliability of the connection. The fasteners can specifically be screws.
[0048] As Figure 3 and Figure 5 shown, the cold plate assembly 10 includes a bottom plate 12 and a cover plate 13. The cover plate 13 is welded to the bottom plate 12, and the cavity between the cover plate 13 and the bottom plate 12 forms a cooling cavity 11. The cooling joint 20 is welded to the cover plate 13, and the leak - proof cover 40 is in sealed connection with the bottom plate 12, and the connection position between the leak - proof cover 40 and the bottom plate 12 surrounds the cover plate 13.
[0049] Since the cover plate 13 and the bottom plate 12 are welded, and the cooling joint 20 and the cover plate 13 are welded, it is inevitable that there are positions with poor welding during the welding process, and the welding positions are prone to corrosion after long-term use. Therefore, there is a risk of leakage at the welding positions in the cold plate assembly 10. In this solution, the connection position between the leak-proof cover 40 and the bottom plate 12 is arranged around the cover plate 13. In this way, the sealed connection position surrounds the welding positions of the cold plate assembly 10. If there is a leakage at the welding position, the leaked coolant will enter the leak-proof cavity 41 and will not leak out, improving the reliability.
[0050] As Figure 1 shown, in a specific embodiment, the cooling pipe 30 includes a liquid inlet pipe 31 and a liquid outlet pipe 32. The liquid inlet pipe 31 and the liquid outlet pipe 32 are each communicated with the cooling cavity 11 through a cooling joint 20. The liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively used for inputting and outputting the coolant. The coolant can be a medium such as water. Correspondingly, the diversion pipe 50 includes a first outer pipe 51 and a second outer pipe 52. The first outer pipe 51 is sleeved on the liquid inlet pipe 31, and the second outer pipe 52 is sleeved on the liquid outlet pipe 32. Both the first outer pipe 51 and the second outer pipe 52 can output the leaked coolant.
[0051] As Figure 1 and Figure 2 shown, there are multiple (two or more) cold plate assemblies 10. The cooling pipes 30 connect the multiple cold plate assemblies 10 in series, so that multiple heat-generating components can be cooled by the multiple cold plate assemblies 10. Correspondingly, there are multiple leak-proof covers 40. The multiple leak-proof covers 40 are connected to the multiple cold plate assemblies 10 one by one and form multiple leak-proof cavities 41 to respectively collect the coolant leaked from each cold plate assembly 10. Among them, in some embodiments, the diversion pipes 50 can connect the multiple leak-proof cavities 41 in series. Or, in other embodiments, each leak-proof cavity 41 is respectively connected to a diversion pipe 50.
[0052] As Figure 1 shown, a quick-release joint 70 is provided at one end of the cooling pipe 30 away from the cold plate assembly 10, and / or a quick-release joint 70 is provided at one end of the diversion pipe 50 away from the cold plate assembly 10. Through the quick-release joint 70, the quick disassembly and assembly of the cooling pipe 30 or the diversion pipe 50 with other pipelines can be realized, improving the operation efficiency.
[0053] In this solution, the leak-proof liquid cooling structure further includes a plurality of fastening components. The fastening components fix the leak-proof cover to the main board in the chassis 80, and the heat-generating components are also installed on the main board. Thus, the heat-generating components are cooled by the leak-proof liquid cooling structure.
[0054] The present invention also provides a communication device, including a chassis 80 and the above-mentioned leak-proof liquid cooling structure. The cold plate assembly 10 of the leak-proof liquid cooling structure is located in the chassis 80 and contacts the heat-generating components in the chassis 80, and the diversion pipe 50 of the leak-proof liquid cooling structure extends outside the chassis 80.
[0055] In this solution, the cooling side of the cold plate assembly 10 cools the heat-generating components inside the chassis 80. Since there are structures such as cooling connectors 20 and pipelines on the installation side of the cold plate assembly 10, leakage is likely to occur after long-term use. In the event of leakage, the leaked coolant enters the sealed anti-leakage cavity 41 between the anti-leakage cover 40 and the cold plate assembly 10. After the coolant in the anti-leakage cavity 41 accumulates to a certain amount, it is discharged outside the chassis 80 through the diversion pipe 50, thus avoiding damage to the structures inside the chassis 80 caused by the coolant. With this solution, it is not restricted by the volume of the anti-leakage cavity 41, the coolant will not enter the chassis 80, improving the reliability of leak prevention. Moreover, this solution does not require a sensor to detect liquid leakage and does not need to alarm to remind personnel to deal with it in time, thus reducing the production cost and avoiding the problem of false alarms.
[0056] Since the requirement for the volume of the anti-leakage cavity 41 in this solution is low and space can be saved through pipeline layout, the external dimensions of this anti-leakage liquid cooling structure are small and can meet various usage scenarios. For example, it can still be used in a compact 1U space. Moreover, the anti-leakage cavity 41 in this solution is a sealed space, and the diversion pipe 50 is connected outside the chassis 80. In this way, this anti-leakage liquid cooling structure can be applied to both conventional horizontally installed scenarios and scenarios requiring vertical installation. For some products with high anti-leakage requirements, such as core router switch products, an anhydrous cold plate solution is usually adopted. Since this solution has high leak prevention reliability, it can be applied to products with high anti-leakage requirements.
[0057] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
[0058] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0059] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the description. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.
[0060] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0061] For the sake of convenience in description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" and the like can be used here to describe the spatial positional relationship of one device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made to the spatial relative descriptions used here.
[0062] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meaning, and thus cannot be construed as limiting the protection scope of the present utility model.
Claims
1. A leak-proof liquid cooling structure, characterized in that: The invention comprises a cold plate assembly (10), a cooling joint (20), a cooling pipe (30), a leakproof cover (40) and a flow guide pipe (50), wherein the cold plate assembly (10) has an installation side and a cooling side opposite to each other, the cooling joint (20) is installed on the installation side, the cooling pipe (30) is connected to a cooling cavity (11) in the cold plate assembly (10) through the cooling joint (20), the cooling pipe (30) is used to transport a cooling liquid, and the cooling side is used to cool a generator in a chassis (80). The heat-resistant components are cooled; the leak-proof cover (40) covers the installation side of the cold plate assembly (10) and the cooling joint (20); a sealed leak-proof cavity (41) is formed between the leak-proof cover (40) and the cold plate assembly (10); one end of the flow guide tube (50) is connected to the leak-proof cavity (41); the other end of the flow guide tube (50) extends to the outside of the chassis (80) so as to discharge the coolant leaked into the leak-proof cavity (41) to the outside of the chassis (80).
2. The leakproof liquid cooling structure according to claim 1, characterized in that: The guide tube (50) is sleeved on the cooling tube (30), and a guide channel is formed between the inner wall of the guide tube (50) and the outer wall of the cooling tube (30), and the guide channel discharges the cooling liquid in the anti-leakage cavity (41) to the outside of the chassis (80).
3. The leakproof liquid cooling structure according to claim 1, characterized in that: The flow guide pipe (50) and the cooling pipe (30) are independently arranged.
4. The leakproof liquid cooling structure according to claim 1, characterized in that: The leak-proof cover (40) has a top wall and a side wall surrounding the top wall, the top wall and the installation side are arranged opposite to each other, the flow guide pipe (50) passes through the side wall and is sealed with the side wall, and / or the cooling pipe (30) passes through the side wall and is sealed with the side wall.
5. The leakproof liquid cooling structure according to claim 4, characterized in that: The side wall has a mounting hole, the inner wall of the mounting hole has an annular groove, a sealing ring (61) is arranged in the annular groove, and the flow guide tube (50) passes through the mounting hole and is sealed with the sealing ring (61).
6. The leakproof liquid cooling structure according to claim 1, characterized in that: An annular connection area is provided between the leakproof cover (40) and the cold plate assembly (10), and the leakproof liquid cooling structure further comprises an annular seal (62), and the annular seal (62) is located in the connection area.
7. The leakproof liquid cooling structure according to claim 6, characterized in that: The anti-leakage cover (40) or the cold plate assembly (10) has an annular sealing groove, and the annular sealing member (62) is located in the sealing groove.
8. The leakproof liquid cooling structure according to claim 1, characterized in that: The anti-leakage cover (40) has an annular limiting step (42), and the outer periphery of the cold plate assembly (10) cooperates with the limiting step (42); the anti-leakage cover (40) is fixedly connected to the cold plate assembly (10) via a plurality of fasteners.
9. The leakproof liquid cooling structure according to claim 1, characterized in that: The cold plate assembly (10) comprises a base plate (12) and a cover plate (13), the cover plate (13) being welded to the base plate (12), the cavity between the cover plate (13) and the base plate (12) forming the cooling cavity (11), the cooling joint (20) being welded to the cover plate (13), the leakproof cover (40) and the base plate (12) being sealingly connected, and the connection position between the leakproof cover (40) and the base plate (12) surrounds the cover plate (13).
10. The leakproof liquid cooling structure according to claim 1, characterized in that: The cooling pipe (30) comprises a liquid inlet pipe (31) and a liquid outlet pipe (32), and the liquid inlet pipe (31) and the liquid outlet pipe (32) are each connected to the cooling chamber (11) via a cooling joint (20); the flow guide pipe (50) comprises a first outer tube (51) and a second outer tube (52), and the first outer tube (51) is sleeved on the liquid inlet pipe (31), and the second outer tube (52) is sleeved on the liquid outlet pipe (32).
11. The leakproof liquid cooling structure according to claim 1, characterized in that: There are a plurality of cold plate assemblies (10), and the cooling pipe (30) connects the plurality of cold plate assemblies (10) in series; there are a plurality of leak-proof covers (40), and the plurality of leak-proof covers (40) and the plurality of cold plate assemblies (10) are connected one-to-one to form a plurality of leak-proof cavities (41); the flow guide pipe (50) connects the plurality of leak-proof cavities (41) in series, or each of the leak-proof cavities (41) is respectively connected to one of the flow guide pipes (50).
12. The leakproof liquid cooling structure according to claim 1, characterized in that: A quick-release joint (70) is provided at one end of the cooling pipe (30) away from the cold plate assembly (10), and / or a quick-release joint (70) is provided at one end of the flow guide pipe (50) away from the cold plate assembly (10).
13. A communication device, characterized in that: It comprises a chassis (80) and the leakproof liquid cooling structure according to any one of claims 1 to 12, wherein the cold plate assembly (10) of the leakproof liquid cooling structure is located in the chassis (80) and contacts with the heat generating components in the chassis (80), and the guide pipe (50) of the leakproof liquid cooling structure extends to the outside of the chassis (80).