Liquid cooling ai server drainage device and ai liquid cooling server
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-28
- Publication Date
- 2026-06-19
Smart Images
Figure CN122239903A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of server technology, and in particular to a liquid-cooled AI server draining device and an AI liquid-cooled server. Background Technology
[0002] Currently, an AI server (Artificial Intelligence Server) is a high-performance computing device specifically designed to run artificial intelligence (AI) algorithms and models. Unlike ordinary business servers (such as web or database servers), AI servers are designed to meet the demands of massive data processing and high-intensity parallel computing. Therefore, AI servers have high requirements for heat dissipation during operation and need to be equipped with a dedicated liquid cooling structure. At the same time, the end region of the liquid cooling structure on an AI server experiences overheating. Therefore, multiple flow-deflecting elements are spaced apart on the end pipes of the liquid cooling structure, and an arc-shaped groove is formed on the upstream end face of each flow-deflecting element to further enhance flow turbulence and improve heat transfer efficiency.
[0003] However, in the existing technology, after the turbulence component is set with an arc-shaped groove, coolant and impurities are easily left in the arc-shaped groove. Long-term residue can easily corrode and damage the liquid cooling structure. At the same time, if it cannot be cleaned for a long time, it can also easily cause blockage of the arc-shaped groove and reduce the turbulence effect. Therefore, the AI liquid cooling server needs to be disassembled and the accumulated liquid and impurities in the arc-shaped groove need to be cleaned every time, which is very troublesome. Summary of the Invention
[0004] This application provides a liquid-cooled AI server draining device and an AI liquid-cooled server to at least partially solve the above-mentioned technical problems.
[0005] To achieve the above objectives, according to a first aspect of this application, a liquid-cooled AI server draining device is provided, comprising: A liquid cooling plate is configured to be installed at the bottom of an AI server chassis. The liquid cooling plate has a spiral flow channel inside, and the end section of the spiral flow channel is a straight section. A plurality of spoilers are provided at intervals on the side wall of the straight segment along the length of the straight segment, and the wall surface of each spoiler facing the upstream end is an arc-shaped surface. The telescopic bending assembly has multiple telescopic channels spaced apart along the length of a straight segment inside the liquid cooling plate. The telescopic channels are perpendicular to the straight segment, and the first end of the telescopic channel is connected to the straight segment, while the second end is connected to the outside. The telescopic bending assembly is slidably inserted into the telescopic channels, and each telescopic channel corresponds to one of the flow-disrupting components. A connecting plate is connected to the outer end wall of the plurality of telescopic bending components; A flexible adsorption tube is inserted into the telescopic bending assembly and is configured to connect with an external adsorption device, with the end of the flexible adsorption tube away from the external adsorption device being the adsorption port. When the telescopic bending component is in the first position within the telescopic channel, the telescopic bending component is straight and blocks the first end opening of the telescopic channel. When the telescopic bending assembly is in the second position within the telescopic channel, a portion of the telescopic bending assembly extends into the straight section, and this portion automatically rotates to drive the adsorption port of the flexible adsorption tube to rotate along the extension direction of the arc-shaped surface while being close to the arc-shaped surface.
[0006] Optionally, the telescopic bending assembly includes a first cylinder, an elastic drive member, and a second cylinder, wherein the first cylinder and the second cylinder are hinged together, the elastic drive member is disposed at the hinge between the first cylinder and the second cylinder, and the flexible adsorption tube passes through the first cylinder and the second cylinder. When the hinge between the first cylinder and the second cylinder is located at the first end opening of the telescopic channel, the first cylinder enters the straight section and bends and rotates relative to the second cylinder under the action of the elastic drive member, and the rotation arc of the first cylinder is consistent with the arc of the arc surface.
[0007] Optionally, the elastic drive component includes a torsion spring connected at the hinge between the first cylinder and the second cylinder, and the torsion spring always has the tendency to drive the first cylinder to rotate relative to the second cylinder toward the arc-shaped surface.
[0008] Optionally, the telescopic bending assembly further includes a sealing rubber ring, wherein an annular groove is formed on the outer periphery of the end of the first cylinder away from the second cylinder, the sealing rubber ring is embedded in the annular groove, and the outer diameter of the sealing rubber ring is larger than the inner diameter of the telescopic channel; When the telescopic bending assembly is in the first position within the telescopic channel, the sealing rubber ring is in sealing contact with the inner wall of the telescopic channel near the first end opening.
[0009] Optionally, the end of the first cylinder away from the second cylinder is a rounded end. When the telescopic bending assembly is in the second position within the telescopic channel and the first cylinder rotates, the rotation trajectory of the top center of the rounded end coincides with the arc-shaped surface, so that the top center of the rounded end slides and fits against the arc-shaped surface when the first cylinder rotates. A circular hole is provided on the rounded end and on one side of the top center. The circular hole coincides with the adsorption port of the flexible adsorption tube. When the top center slides and fits against the arc-shaped surface, the angle formed by the line connecting the center of the circular hole and the top center and the tangent of the arc-shaped surface through the top center is an acute angle.
[0010] Optionally, the outer surface of the rounded corner is covered with a polytetrafluoroethylene layer.
[0011] Optionally, it also includes a limiting ring, which is disposed around the outer peripheral wall of the second cylinder, and a limiting groove is formed on the inner wall of the telescopic channel along the length direction of the telescopic channel, and the limiting ring is slidably embedded in the limiting groove; When the limiting ring abuts against the inner end wall of the limiting groove near the second end opening of the telescopic channel, the telescopic bending assembly is in the first position within the telescopic channel. When the limiting ring abuts against the inner end wall of the limiting groove near the first end opening of the telescopic channel, the telescopic bending assembly is in the second position within the telescopic channel.
[0012] Optionally, the limiting ring is a magnetic ring, and iron rings are provided on both inner end walls of the limiting groove, and the iron rings are magnetically attracted to the magnetic rings.
[0013] Optionally, a spring is provided inside the bent section of the flexible adsorption tube, the spring extending in the same direction as the flexible adsorption tube, and the outer wall of the spring is bonded to the inner wall of the flexible adsorption tube.
[0014] Secondly, this application also provides an AI liquid-cooled server, including the liquid-cooled AI server draining device described in the first aspect, and an AI server chassis, wherein the liquid-cooled plate of the liquid-cooled AI server draining device is heat-exchange bonded to the AI server chassis.
[0015] This application has at least the following beneficial effects: 1. The liquid-cooled AI server draining device incorporates a sliding telescopic bending component at a corresponding position on the straight section of the liquid-cooled plate. A flexible adsorption tube is introduced inside the telescopic bending component, enabling the liquid-cooled structure to maintain the original turbulent heat exchange layout while addressing the arc-shaped surface of the turbulent components. When the telescopic bending component is in the first position, a sealing relationship is formed between the telescopic channel and the straight section, which helps maintain the integrity of the flow channel and the sealing stability of the liquid-cooled plate under normal operating conditions. When cleaning is required, the telescopic bending component is pushed into the second position. A portion of the telescopic bending component enters the straight section and breaks free from the linear constraint of the telescopic channel, thus generating rotation under the structural characteristics. This causes the adsorption port of the flexible adsorption tube to approach the arc-shaped surface and move along the extension direction of the arc-shaped surface. This movement path effectively covers the surface area of the arc-shaped surface and forms a continuous adsorption channel for residual coolant and impurities. With the above-mentioned structural combination, the arc-shaped surface of the turbulence component can be cleaned without disassembling the liquid cooling plate. This helps to reduce the complexity of maintenance operations and slow down the heat exchange performance degradation and structural corrosion risk caused by long-term liquid accumulation and impurity retention, thereby improving the stability and reliability of the liquid cooling structure under long-term operating conditions. 2. By constructing a rounded end at the end of the first cylinder furthest from the second cylinder, and defining the rotation trajectory of the top center of the rounded end to match the arc-shaped surface of the baffle, the rounded end can form a continuous sliding contact with the arc-shaped surface of the baffle when the telescopic bending assembly enters the second position and rotates. This contact helps to stably adhere to the arc-shaped surface during rotation and guide the movement path of the adsorbed medium. Simultaneously, a circular hole coinciding with the adsorption port of the flexible adsorption tube is provided on the rounded end, and the line connecting the center of the circular hole and the top center is defined to form an acute angle with respect to the tangent of the arc-shaped surface. This creates a guiding angle space between the rounded end and the arc-shaped surface during rotation and sliding. This angle space helps to collect residual coolant and impurities on the surface of the arc-shaped surface and guide them to the vicinity of the adsorption port, thus forming a more targeted adsorption path when the adsorption equipment is working. Through the above geometric fit, the cleaning process has good continuity and coverage within a limited space, which helps to improve the maintenance effect of the arc-shaped surface of the baffle and slow down performance degradation under long-term operating conditions. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.
[0018] Figure 1 This is a cross-sectional view of the AI liquid-cooled server in the embodiments of this application; Figure 2 This is a cross-sectional view of the liquid cooling AI server drainage device in an embodiment of this application; Figure 3 This is a partial cross-sectional view in an embodiment of this application used to show the telescopic bending component in a first position; Figure 4 This is a partial cross-sectional view in an embodiment of this application, showing the first state of the telescopic bending component in a second position; Figure 5 This is a partial cross-sectional view in an embodiment of this application, showing the telescopic bending component in a second position, representing a second state. Figure 6 This is a partial cross-sectional view used in the embodiments of this application to illustrate the internal structure of the telescopic bending component.
[0019] Explanation of reference numerals in the attached figures: 1. Liquid cooling plate; 11. Spiral flow channel; 111. Straight section; 12. Telescopic channel; 13. Limiting groove; 131. Iron ring; 2. Aerodynamic components; 21. Arc-shaped surfaces; 3. Telescopic bending assembly; 31. First cylinder; 311. Annular groove; 312. Rounded corner end; 3121. Circular hole; 32. Elastic drive component; 33. Second cylinder; 34. Sealing rubber ring; 4. Connecting plate; 5. Flexible adsorption tube; 6. Limiting ring; 7. Spring; 8. AI server chassis. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0021] Firstly, this application provides a liquid cooling AI server draining device; please refer to [link to relevant documentation]. Figures 1 to 6 The liquid cooling AI server drainage device is integrated into the bottom of the AI server chassis 8 and is used to cool the AI server chassis 8.
[0022] In some implementations, combined with Figure 1 , Figure 2 and Figure 3The liquid-cooled AI server drainage device includes a liquid-cooled plate 1, a flow-deflecting component 2, a telescopic bending assembly 3, a connecting plate 4, and a flexible adsorption tube 5. The liquid-cooled plate 1 serves as the basic load-bearing structure and is fixedly installed at the bottom of the AI server chassis 8. The interior of the liquid-cooled plate 1 is machined to form a spiral flow channel 11, which extends inward along the surface of the liquid-cooled plate 1 and transitions into a straight segment 111 at its end. Specifically, the straight segment 111 extends linearly relative to the spiral segment, forming a high-heat zone at the end of the coolant flow path.
[0023] For example, multiple flow-disrupting elements 2 are arranged at intervals along the length of the sidewall of the straight segment 111. Each flow-disrupting element 2 is fixedly connected to the inner wall of the straight segment 111, and the wall surface of the flow-disrupting element 2 facing the upstream direction of the coolant is formed as an arc-shaped surface 21. Specifically, the curvature of the arc-shaped surface 21 forms a deflection angle with the mainstream direction of the coolant within the straight segment 111. This structure is beneficial for generating disturbance to the fluid and enhancing local heat transfer under normal coolant flow conditions.
[0024] For example, a plurality of telescopic channels 12 are spaced apart along the length of the straight segment 111 inside the liquid cooling plate 1. The telescopic channels 12 are perpendicular to the straight segment 111, and each telescopic channel 12 is located at a radial position of a flow-disrupting element 2. Specifically, the first end opening of the telescopic channel 12 is connected to the interior of the straight segment 111, and the second end opening is connected to the outside, so as to form an adsorption path connected to the outside.
[0025] For example, a telescopic bending component 3 is slidably disposed inside each telescopic channel 12. The telescopic bending component 3 is in a first position and has a straight configuration when not in operation. Its outer wall forms a guiding fit with the inner wall of the telescopic channel 12. At the same time, in this state, the inner end of the telescopic bending component 3 blocks the first end opening of the telescopic channel 12, thereby isolating the coolant during the normal operation of the liquid cooling system and preventing the coolant from seeping out through the telescopic channel 12.
[0026] Furthermore, the telescopic bending assembly 3 has a pre-set flexible section or rotational fitting section with a bending tendency. This structure has the motion characteristic of automatically rotating or deflecting after the axial constraint is released. Multiple telescopic bending assemblies 3 are connected to the connecting plate 4 on the side away from the straight section 111. The connecting plate 4, as a synchronous operating component, moves as a whole along the axial direction of the telescopic channel 12 under the action of external force, thereby driving multiple telescopic bending assemblies 3 to move synchronously within the telescopic channel 12.
[0027] For example, a flexible adsorption tube 5 is inserted inside each telescopic bending component 3. The flexible adsorption tube 5 extends along the axial direction of the telescopic bending component 3 and forms a relatively stable follow-up relationship with the telescopic bending component 3. The end of the flexible adsorption tube 5 that is close to the outside is connected to the adsorption device, and the end that is far away from the adsorption device forms an adsorption port. The adsorption port is located on the side of the telescopic bending component 3 that is close to the straight segment 111.
[0028] For example, when the telescopic bending component 3 is in the first position within the telescopic channel 12, the telescopic bending component 3 is straight and blocks the first end opening of the telescopic channel 12; when the telescopic bending component 3 is in the second position within the telescopic channel 12, a portion of the telescopic bending component 3 extends into the straight section 111, and this portion automatically rotates to drive the adsorption port of the flexible adsorption tube 5 to rotate along the extension direction of the arc surface 21 while being close to the arc surface 21.
[0029] It is understandable that when the connecting plate 4 moves the telescopic bending component 3 from the first position to the second position under the push of external force, a part of the telescopic bending component 3 gradually enters the interior of the straight section 111. The part that enters the interior of the straight section 111 breaks away from the straight guiding restriction of the inner wall of the telescopic channel 12 and generates automatic rotation behavior under the constraints of its own structural characteristics and the flow channel space. This rotation behavior unfolds along the curvature direction of the arc surface 21 of the turbulence member 2 and simultaneously drives the flexible adsorption tube 5 to change its posture, thereby causing the adsorption port to move close to the arc surface 21 in space and move along the extension direction of the arc surface 21.
[0030] Meanwhile, when the adsorption device is started in advance, the adsorption port forms a negative pressure adsorption channel for the coolant residue and impurities near the arc-shaped surface 21 as it approaches the arc-shaped surface 21. The residual coolant and impurities are discharged to the external adsorption device through the flexible adsorption tube 5 under the action of pressure difference. This process can form multiple covering cleaning paths on the arc-shaped surface 21 with the cooperation of the axial reciprocating movement of the telescopic bending component 3, which is beneficial to reduce the accumulation of deposits on the surface of the arc-shaped surface 21.
[0031] Through the above structural combination, the liquid cooling plate 1, while maintaining the original turbulence heat exchange structure arrangement, introduces a retractable and rotatable cleaning component, so that the arc-shaped surface 21 of the turbulence component 2 can be maintained regularly without disassembling the liquid cooling structure. The device takes into account both the sealing stability during normal operation and the operability during maintenance at the structural level, which is of positive significance for alleviating the corrosion risk and turbulence performance degradation caused by long-term liquid accumulation and impurity deposition in the arc-shaped surface 21 area.
[0032] In some implementations, such as Figure 3 , Figure 4 and Figure 5As shown, the telescopic bending assembly 3 includes a first cylinder 31, an elastic drive member 32, and a second cylinder 33. The first cylinder 31 and the second cylinder 33 are connected to each other by a hinge. The hinge position constitutes the functional node for the telescopic bending assembly 3 to rotate and bend.
[0033] For example, the elastic drive member 32 is disposed at the hinge of the first cylinder 31 and the second cylinder 33 and participates in the relative motion adjustment between the two; the flexible adsorption tube 5 is continuously inserted into the first cylinder 31 and the second cylinder 33 along the axial direction of the telescopic bending assembly 3, and the flexible adsorption tube 5 forms a follow-up relationship with the first cylinder 31 and the second cylinder 33, so that the spatial posture changes synchronously when the posture of the first cylinder 31 and the second cylinder 33 changes.
[0034] It is worth noting that in this structure, the first cylinder 31 is defined as a rotating section that is close to the straight section 111 and can enter the interior of the straight section 111, and the second cylinder 33 is defined as a moving section that is close to the outside of the telescopic channel 12 and mainly undertakes the guiding and supporting functions. The two together form an axially sliding whole within the telescopic channel 12.
[0035] For example, the elastic drive member 32 includes a torsion spring connected at the hinge axis between the first cylinder 31 and the second cylinder 33. Specifically, the hinge axis between the first cylinder 31 and the second cylinder 33 has a rotation axis, the torsion spring is sleeved on the rotation axis, one end of the torsion spring is connected to the first cylinder 31, and the other end of the torsion spring is connected to the second cylinder 33. Further, the torsion spring is in a pre-torsion state in the initial installation state and continuously applies a rotational tendency to the first cylinder 31. The direction of this rotational tendency is towards the arc-shaped surface 21 of the deflection member 2, thereby pre-setting the deflection direction of the first cylinder 31 after the external constraint is released at the structural level.
[0036] It is understandable that when the telescopic bending component 3 is in the first position within the telescopic channel 12, the first cylinder 31 and the second cylinder 33 are linearly constrained by the inner wall of the telescopic channel 12. The first cylinder 31 maintains an approximately straight state under the restraint of the second cylinder 33. The rotational tendency generated by the torsion spring is spatially offset by the inner wall of the telescopic channel 12. At this time, the adsorption port of the flexible adsorption tube 5 is located outside the telescopic channel 12 and does not participate in the cleaning action.
[0037] When the connecting plate 4 moves the telescopic bending assembly 3 along the telescopic channel 12 axially under the action of external force, and the hinge of the first cylinder 31 and the second cylinder 33 gradually approaches and finally is located at the first end opening of the telescopic channel 12, the front end of the first cylinder 31 enters the interior of the straight section 111. The part of the first cylinder 31 that enters the interior of the straight section 111 is freed from the straight guide restriction of the inner wall of the telescopic channel 12. Under the elastic drive provided by the torsion spring, the first cylinder 31 bends relative to the second cylinder 33 and rotates.
[0038] Since the rotational trend of the torsion spring corresponds to the spatial orientation of the arc surface 21, the first cylinder 31 unfolds along the curvature direction of the arc surface 21 during rotation. Its rotation arc is matched with the arc of the arc surface 21 during the structural design stage, so that the first cylinder 31 is arranged close to the arc surface 21 during rotation.
[0039] Meanwhile, during the rotation process, the flexible adsorption tube 5 inserted inside the first cylinder 31 changes its posture synchronously with the first cylinder 31. The adsorption port of the flexible adsorption tube 5 gradually approaches the arc-shaped surface 21 in space and generates a moving path along the extension direction of the arc-shaped surface 21. When the external adsorption equipment is in working state, the adsorption port forms an adsorption channel for the liquid and impurities near the arc-shaped surface 21 during the movement of approaching the arc-shaped surface 21, which is beneficial to guide the coolant residue and impurities attached to the surface of the arc-shaped surface 21 to be discharged.
[0040] Based on this, through the cooperation between the first cylinder 31, the second cylinder 33 and the torsion spring, the telescopic bending assembly 3 can automatically rotate after entering the straight section 111 without the need for an additional drive structure. This automatic rotation behavior is coordinated with the geometry of the arc surface 21 of the baffle 2, which is of positive significance for completing the cleaning operation of the arc surface 21 in a limited space. At the same time, the characteristic of this structure to maintain a straight state in the telescopic channel 12 is also beneficial to maintaining the sealing stability of the liquid cooling plate 1 in the non-cleaning state.
[0041] In some implementations, combined with Figure 3 , Figure 4 and Figure 5 The telescopic bending assembly 3 also includes a sealing rubber ring 34, which is used to form a sealed isolation structure at the connection position between the telescopic channel 12 and the straight section 111 in non-cleaning conditions.
[0042] For example, the end of the first cylinder 31 away from the second cylinder 33 is the end near the straight segment 111. The outer periphery of this end is machined into an annular groove 311 in the circumferential direction. The cross-sectional shape of the annular groove 311 is adapted to the cross-section of the sealing rubber ring 34. The sealing rubber ring 34 is embedded in the annular groove 311 and forms a relatively stable installation relationship with the first cylinder 31.
[0043] For example, the sealing rubber ring 34 is made of rubber material with a certain elasticity and resilience, and its outer diameter is larger than the inner diameter of the telescopic channel 12, thereby forming a radial interference trend in the spatial fit relationship.
[0044] It is understandable that when the telescopic bending component 3 is in the first position inside the telescopic channel 12, the first cylinder 31 is located inside the telescopic channel 12 and close to the first end opening of the telescopic channel 12. The sealing rubber ring 34, with a radial dimension larger than the inner diameter of the telescopic channel 12, makes elastic compression contact with the inner wall of the telescopic channel 12 near the first end opening. This contact state forms a continuous circumferential sealing interface under the elastic deformation of the rubber material, which reduces the possibility of coolant flowing along the direction of the telescopic channel 12 inside the straight section 111 from a structural perspective.
[0045] When the liquid cooling plate 1 is in normal operation, the coolant flows in the spiral flow channel 11 and the straight section 111. The sealing rubber ring 34 forms an isolation between the straight section 111 and the telescopic channel 12 by abutting against the inner wall of the telescopic channel 12, which helps to inhibit the coolant from entering the telescopic channel 12 and seeping out to the outside to a certain extent.
[0046] When cleaning is performed and the telescopic bending assembly 3 is pushed from the first position to the second position, the sealing rubber ring 34 gradually detaches from the inner wall of the first end opening area of the telescopic channel 12 as the first cylinder 31 moves axially. The connection between the straight section 111 and the telescopic channel 12 is opened, thereby providing space for the first cylinder 31 to enter the straight section 111 and for subsequent rotation.
[0047] By setting a sealing rubber ring 34 at the end of the first cylinder 31 and forming an elastic fit with the telescopic channel 12, the telescopic bending component 3 can meet the structural requirements of cleaning and operation states under different working positions, which is of positive significance for maintaining the flow channel sealing and structural stability of the liquid cooling plate 1 during long-term operation.
[0048] In some implementations, combined with Figure 3 , Figure 4 and Figure 6 The end of the first cylinder 31 away from the second cylinder 33 is configured as a rounded end 312. The rounded end 312 is used to form a continuous and stable contact with the arc-shaped surface 21 of the baffle 2 during cleaning. Specifically, the rounded end 312 can be understood as an end structure with a smooth transition in its outer contour. This structure has no sharp edges in the axial and radial directions, thus forming a compliant contact interface with the arc-shaped surface 21 when it enters the straight section 111 and rotates.
[0049] For example, when the telescopic bending assembly 3 is in the second position within the telescopic channel 12 and the first cylinder 31 rotates relative to the second cylinder 33 under the elastic driving trend provided by the torsion spring, the rounded end 312 enters the interior of the straight section 111 and approaches the location of the spoiler 2. The top center of the rounded end 312 forms a motion trajectory in space that rotates with the first cylinder 31. This motion trajectory corresponds to the geometric contour of the arc surface 21 during the structural design stage, so that the top center of the rounded end 312 slides and fits against the arc surface 21 during rotation.
[0050] It is understandable that, since the top center of the rounded end 312 always moves along the extension direction of the arc surface 21, the outer contour of the rounded end 312 and the arc surface 21 maintain a continuous contact state, which is beneficial to stably guide the coolant residue and impurities attached to the surface of the arc surface 21 to gather in a specific area during the cleaning process.
[0051] For example, a circular hole 3121 is further formed on the outer surface of the rounded end 312. The circular hole 3121 is located on the rounded end 312 and on one side of the top center. The circular hole 3121 and the adsorption port of the flexible adsorption tube 5 are spatially corresponding, so that the adsorption channel of the flexible adsorption tube 5 extends to the surface of the rounded end 312 in structure.
[0052] For example, when the top center of the rounded end 312 slides into contact with the arc-shaped surface 21, a connecting line is formed between the center of the round hole 3121 and the top center. This connecting line forms an acute angle with the tangent of the arc-shaped surface 21 at the top center. This acute angle geometrically defines the orientation of the round hole 3121 relative to the arc-shaped surface 21, so that the opening direction of the round hole 3121 is not directly facing the normal direction of the arc-shaped surface 21, but facing the angled area formed between the rounded end 312 and the arc-shaped surface 21.
[0053] It is understood that during the rotation and sliding of the first cylinder 31 along the arc surface 21, a wedge-shaped gap is naturally formed between the rounded end 312 and the arc surface 21 on the acute angle side. During the sliding process, the gap has a guiding and agglomerating effect on the coolant residue and impurities on the surface of the arc surface 21, which is beneficial to concentrate the dispersed impurities in the gap area. Since the opening direction of the round hole 3121 is towards the gap, when the external adsorption equipment is in working condition, the adsorption port of the flexible adsorption tube 5 forms a directional adsorption channel for the coolant residue and impurities in the gap. Thus, during the movement of the rounded end 312 along the arc surface 21, the medium in the gap is continuously drawn, which is beneficial to enhance the continuity and coverage of the cleaning process.
[0054] For example, the outer surface of the rounded end 312 is covered with a polytetrafluoroethylene (PTFE) layer. The PTFE layer, as a low-friction coefficient material, covers the outer surface area where the rounded end 312 contacts the arc-shaped surface 21. During the sliding contact process, this material layer can reduce the frictional resistance between the rounded end 312 and the arc-shaped surface 21 to a certain extent, which is beneficial for the first cylinder 31 to complete the rotation and sliding process along the arc-shaped surface 21 under the drive of the torsion spring. At the same time, it is also beneficial to reduce the degree of wear between the rounded end 312 and the arc-shaped surface 21.
[0055] Based on this, through the geometric design of the rounded end 312, the relative arrangement of the round hole 3121 and the adsorption port, and the surface covering structure of the polytetrafluoroethylene layer, the rotation process of the first cylinder 31 after entering the straight section 111 can form a structural effect of close sliding, impurity collection and adsorption channel cooperation in a limited space. This is of positive significance for maintaining the arc-shaped surface 21 of the turbulence component 2 without disassembling the liquid cooling plate 1.
[0056] In some implementations, combined with Figure 3 , Figure 4 and Figure 6 The liquid-cooled AI server drainage device also includes a limiting ring 6, which forms a displacement limiting and positioning structure with the limiting groove 13. The limiting ring 6 is encircled on the outer peripheral wall of the second cylinder 33 and is fixedly connected to the second cylinder 33. The limiting groove 13 is opened on the inner wall of the telescopic channel 12 along the length direction of the telescopic channel 12. The limiting groove 13 limits the maximum forward position and the maximum retraction position of the telescopic bending component 3 in the axial direction. The limiting ring 6 is slidably embedded in the limiting groove 13, thereby constraining the axial movement path of the telescopic bending component 3 within the length range of the limiting groove 13 at the structural level.
[0057] For example, the two ends of the limiting groove 13 correspond to the first end opening and the second end opening of the telescopic channel 12, respectively. The inner end wall of the limiting groove 13 near the second end opening is defined as the retraction limiting position. When the limiting ring 6 slides along the limiting groove 13 and abuts against the retraction limiting position under the action of external force, the second cylinder 33 and the first cylinder 31 connected thereto are located inside the telescopic channel 12. The first cylinder 31 does not enter the straight section 111 area. The telescopic bending component 3 maintains an approximately straight state in spatial posture. This state is defined as the first position inside the telescopic channel 12.
[0058] It is worth noting that in the first position, the rounded end 312 can be exposed within the straight segment 111, thus also having a certain turbulence effect.
[0059] Furthermore, the inner end wall of the limiting groove 13 near the first end opening is defined as the forward limiting position. When the telescopic bending assembly 3 moves forward along the axial direction of the telescopic channel 12 under the push of external force and the limiting ring 6 abuts against the forward limiting position, the first cylinder 31 enters the interior of the straight section 111 and breaks away from the straight constraint of the inner wall of the telescopic channel 12. The telescopic bending assembly 3 is in the second position inside the telescopic channel 12, thereby providing space for subsequent bending and rotation behaviors.
[0060] It is understandable that, through the cooperation between the limiting ring 6 and the limiting groove 13, the telescopic bending component 3 has clear start and end position boundaries during axial movement, which is beneficial for the operator to quickly judge and switch the working position of the telescopic bending component 3 without complicated adjustments, thereby forming a stable transition between cleaning and non-cleaning conditions.
[0061] For example, the limiting ring 6 adopts a magnetic ring structure. Iron rings 131 are respectively set at the inner end wall positions corresponding to both ends of the limiting groove 13. The iron rings 131 are fixedly embedded in the inner wall of the telescopic channel 12 and form a magnetic attraction relationship with the magnetic ring. When the limiting ring 6 approaches any inner end wall position, a magnetic attraction tendency is generated between the magnetic ring and the corresponding iron ring 131. This magnetic attraction tendency enhances the stability of the limiting ring 6 at the forward limiting position or the backward limiting position to a certain extent, thereby reducing the possibility of axial displacement of the telescopic bending assembly 3 due to vibration or fluid disturbance at the structural level.
[0062] With the cooperation of the magnetic ring and the iron ring 131, the telescopic bending component 3 forms a relatively stable dwelling state at the first position and the second position, which is beneficial for the liquid cooling plate 1 to maintain the corresponding structural posture during the operation and cleaning stages, and has a positive significance for improving the overall ease of operation and positional reliability of the device.
[0063] In some embodiments, combined with Figure 6 Based on the structure of the flexible adsorption tube 5 extending inside the telescopic bending component 3, a spring 7 is installed inside the bending tube section where the spatial posture changes. The spring 7 extends along the axial direction of the flexible adsorption tube 5 and is consistent with the extension direction of the flexible adsorption tube 5. The outer wall of the spring 7 is fixedly connected to the inner wall of the flexible adsorption tube 5 by adhesive bonding, thereby forming a composite support structure between the tube wall and the elastic support at the structural level.
[0064] For example, the flexible adsorption tube 5 is understood as a tubular component with a certain degree of flexibility. When the first cylinder 31 rotates relative to the second cylinder 33 and causes the flexible adsorption tube 5 to bend synchronously, the bent section of the flexible adsorption tube 5 is prone to cross-sectional shrinkage in a local area. The spring 7, as an elastic skeleton continuously distributed along the axial direction, forms an outward supporting force on the tube wall during the bending process of the flexible adsorption tube 5, thus resisting the collapse tendency of the tube cross-section from a structural mechanism perspective.
[0065] Furthermore, since the spring 7 and the inner wall of the flexible adsorption tube 5 form a relatively stable overall structure through bonding, the spring 7 can deform synchronously with the tube body and continuously provide internal support during the bending or rebounding process of the flexible adsorption tube 5, thereby allowing the bent tube section to maintain a relatively unobstructed fluid channel in the spatial bending state.
[0066] When the external adsorption equipment is in operation, the negative pressure inside the flexible adsorption tube 5 is transmitted along the channel formed by the support of the spring 7, which is beneficial for the smooth discharge of coolant residue and impurities along the flexible adsorption tube 5. By setting the spring 7 in the bent section of the flexible adsorption tube 5 and forming an inner wall bonding structure, the flexible adsorption tube 5 maintains a relatively stable channel shape during multiple bends and returns with the telescopic bending component 3, which is of positive significance for maintaining the continuity of the adsorption function under complex rotation paths.
[0067] For example, a sandwich is provided in the bent section of the flexible adsorption tube 5, and the spring 7 is bonded in the sandwich. This ensures that the spring 7 will not come into contact with the adsorbed coolant and impurities, thus preventing the accumulation of impurities at the spring 7.
[0068] It is worth noting that the rotation range of the first cylinder 31 is limited due to the inner wall of the straight section 111. Therefore, the two side walls of the first cylinder 31 near the hinge are set as inclined surfaces. This can effectively avoid the inner wall of the straight section 111, thereby greatly increasing the rotation range of the first cylinder 31, which is beneficial for the flexible adsorption tube 5 to adsorb most of the arc-shaped surface.
[0069] It is worth noting that due to the inclined surface, the first cylinder 31 may rotate relative to the second cylinder 32 before it has fully extended into the straight section 111. Therefore, in actual operation, the operator can push the cylinder faster so that the rounded end 312 of the first cylinder 31 can rotate closer to the arc-shaped surface 21 before rotating. Of course, the rotation of the first cylinder 31 before it has fully extended into the straight section 111 will not significantly affect the adsorption effect, because the suction force of the external adsorption device is relatively large and the arc-shaped surface 21 is relatively small, so effective adsorption can still be achieved.
[0070] Secondly, combining Figures 1 to 6This application also provides an AI liquid-cooled server, including a liquid-cooled AI server drain device of the first aspect, and an AI server chassis 8, wherein the liquid-cooled plate 1 of the liquid-cooled AI server drain device is heat-exchange bonded to the AI server chassis 8.
[0071] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0072] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0073] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0074] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A liquid-cooled AI server draining device, characterized in that, include: A liquid cooling plate (1) is configured to be installed at the bottom of an AI server chassis (8). A spiral flow channel (11) is provided inside the liquid cooling plate (1), and the end section of the spiral flow channel (11) is a straight section (111). The flow-deflecting element (2) is provided at intervals on the side wall of the straight segment (111) along the length direction of the straight segment (111), and the wall surface of each flow-deflecting element (2) facing the upstream end is an arc-shaped surface (21). The telescopic bending assembly (3) has multiple telescopic channels (12) spaced apart along the length of the straight segment (111) inside the liquid cooling plate (1). The telescopic channels (12) are perpendicular to the straight segment (111), and the first end of the telescopic channel (12) is connected to the straight segment (111) and the second end is connected to the outside. The telescopic bending assembly (3) is slidably inserted into the telescopic channel (12), and each telescopic channel (12) corresponds to a baffle (2). The connecting plate (4) is connected to the outer end wall of the plurality of telescopic bending components (3); The flexible adsorption tube (5) is inserted into the telescopic bending assembly (3) and is configured to connect with an external adsorption device. The end of the flexible adsorption tube (5) away from the external adsorption device is the adsorption port. When the telescopic bending component (3) is in the first position within the telescopic channel (12), the telescopic bending component (3) is straight and blocks the first end opening of the telescopic channel (12); When the telescopic bending assembly (3) is in the second position within the telescopic channel (12), a portion of the telescopic bending assembly (3) extends into the straight section (111), and this portion automatically rotates to drive the adsorption port of the flexible adsorption tube (5) to rotate along the extension direction of the arc surface (21) while being close to the arc surface (21).
2. The liquid cooling AI server draining device according to claim 1, characterized in that, The telescopic bending assembly (3) includes a first cylinder (31), an elastic drive member (32), and a second cylinder (33). The first cylinder (31) and the second cylinder (33) are hinged together. The elastic drive member (32) is located at the hinge between the first cylinder (31) and the second cylinder (33). The flexible adsorption tube (5) passes through the first cylinder (31) and the second cylinder (33). When the hinge between the first cylinder (31) and the second cylinder (33) is located at the first end opening of the telescopic channel (12), the first cylinder (31) enters the straight section (111) and bends and rotates relative to the second cylinder (33) under the action of the elastic drive member (32), and the rotation arc of the first cylinder (31) is consistent with the arc of the arc surface (21).
3. The liquid cooling AI server draining device according to claim 2, characterized in that, The elastic drive member (32) includes a torsion spring connected at the hinge between the first cylinder (31) and the second cylinder (33), and the torsion spring always has the tendency to drive the first cylinder (31) to rotate relative to the second cylinder (33) toward the arc-shaped surface (21).
4. The liquid cooling AI server draining device according to claim 2, characterized in that, The telescopic bending assembly (3) also includes a sealing rubber ring (34). An annular groove (311) is provided on the outer periphery of the end of the first cylinder (31) away from the second cylinder (33). The sealing rubber ring (34) is embedded in the annular groove (311), and the outer diameter of the sealing rubber ring (34) is larger than the inner diameter of the telescopic channel (12). When the telescopic bending assembly (3) is in the first position within the telescopic channel (12), the sealing rubber ring (34) seals against the inner wall of the telescopic channel (12) near the first end opening.
5. The liquid cooling AI server draining device according to claim 2, characterized in that, The end of the first cylinder (31) away from the second cylinder (33) is a rounded end (312). When the telescopic bending assembly (3) is in the second position in the telescopic channel (12) and the first cylinder (31) rotates, the rotation trajectory of the top center of the rounded end (312) coincides with the arc surface (21), so that the top center of the rounded end (312) slides and fits against the arc surface (21) when the first cylinder (31) rotates. A circular hole (3121) is provided on the rounded end (312) and on one side located at the top center. The circular hole (3121) coincides with the adsorption port of the flexible adsorption tube (5). When the top center slides and fits against the arc surface (21), the angle formed by the line connecting the center of the circular hole (3121) and the top center and the tangent of the arc surface (21) passing through the top center is an acute angle.
6. The liquid-cooled AI server draining device according to claim 5, characterized in that, The outer surface of the rounded end (312) is covered with a polytetrafluoroethylene layer.
7. A liquid-cooled AI server draining device according to any one of claims 2 to 6, characterized in that, It also includes a limiting ring (6), which is arranged around the outer peripheral wall of the second cylinder (33). A limiting groove (13) is opened on the inner wall of the telescopic channel (12) along the length direction of the telescopic channel (12), and the limiting ring (6) is slidably embedded in the limiting groove (13). When the limiting ring (6) abuts against the inner end wall of the second end opening of the limiting groove (13) near the telescopic channel (12), the telescopic bending assembly (3) is in the first position within the telescopic channel (12). When the limiting ring (6) abuts against the inner end wall of the limiting groove (13) near the first end opening of the telescopic channel (12), the telescopic bending assembly (3) is in the second position within the telescopic channel (12).
8. The liquid-cooled AI server draining device according to claim 7, characterized in that, The limiting ring (6) is a magnetic ring, and iron rings (131) are provided on both inner end walls of the limiting groove (13). The iron rings (131) are magnetically attracted to the magnetic ring.
9. A liquid-cooled AI server draining device according to any one of claims 1 to 6, characterized in that, The flexible adsorption tube (5) has a spring (7) inside the bent section. The extension direction of the spring (7) is consistent with that of the flexible adsorption tube (5), and the outer wall of the spring (7) is bonded to the inner wall of the flexible adsorption tube (5).
10. An AI liquid-cooled server, characterized in that, The device includes the liquid-cooled AI server draining device according to any one of claims 1 to 9, and also includes an AI server chassis (8), wherein the liquid-cooled plate (1) of the liquid-cooled AI server draining device is heat-exchange bonded to the AI server chassis (8).