Submerged liquid cooling cabinet

Abstract

An immersion liquid cooling cabinet comprises CDU units and TANK units which are independent and spliced, the CDU units and the TANK units are detachably connected through a standardized interface; the TANK units are used for containing cooling liquid and heat dissipation components, and the CDU units are used for driving the cooling liquid to circulate and exchange heat with the TANK units.

Description

Technical Field

[0001] This invention relates to the field of data center heat dissipation equipment technology, and in particular to an immersion liquid-cooled cabinet. Background Technology

[0002] With the rapid development of the digital economy, the demand for computing power in data centers continues to rise. The integration and power density of electronic devices such as servers and artificial intelligence computing nodes have increased significantly. Traditional air-cooling technology, due to its inherent defects such as low heat dissipation efficiency, high energy consumption, and high noise, can no longer meet the heat dissipation requirements of high heat flux density equipment. Problems such as local hotspot concentration and equipment performance degradation occur frequently, seriously restricting the improvement of data center computing power and the achievement of energy-saving goals. Against this background, immersion liquid cooling technology has become the mainstream development direction due to its advantages such as high-efficiency heat exchange, low energy consumption, and low noise. However, existing immersion liquid cooling cabinets are mostly integrated structures with fixed CDU and TANK, which have significant limitations: inconvenient transportation, installation, and maintenance; partial failures require complete machine shutdown for repair; high coupling between the heat dissipation system and the main cabinet body, making it impossible to flexibly configure according to the load; lack of standardized interfaces, poor compatibility of modules from different manufacturers, and high system upgrade costs; and imperfect sealing and heat exchange design, which easily leads to problems such as coolant leakage and uneven heat dissipation, making it difficult to adapt to diverse application scenarios from edge computing centers to large supercomputing centers. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an immersion liquid-cooled cabinet. By setting up independent and detachable CDU units and TANK units, and using standardized interfaces to achieve detachable connection between the two, the technical effects of improving the convenience of cabinet transportation, installation and maintenance, flexibly adapting to different cooling requirements and application scenarios, reducing system upgrade costs, and ensuring heat dissipation stability and operational safety are achieved.

[0004] The objective of this invention is achieved through the following approach: This invention discloses an immersion liquid-cooled cabinet, comprising independent and detachable CDU units and TANK units. The CDU units and TANK units are detachably connected via a standardized interface. The TANK units are used to contain coolant and heat dissipation components, and the CDU units are used to drive coolant circulation and exchange heat with the TANK units.

[0005] Furthermore, the fluid circuit connection between the CDU unit and the TANK unit adopts a chuck-type quick-connect structure.

[0006] Furthermore, the mechanical connection between the CDU unit and the TANK unit adopts a positioning connection using two pins and four bolts. The two pins are used for precise alignment during splicing, and the four bolts are used for rigid fastening after splicing.

[0007] Furthermore, the heat dissipation assembly includes several pluggable heat dissipation modules, which are detachably connected to the TANK unit through a standardized interface to enable the combination of the same or different pluggable heat dissipation modules.

[0008] Furthermore, the TANK unit includes an electric door, and the TANK unit is provided with sealing cotton around the periphery of the electric door. The electric door can generate pressure and apply it to the sealing cotton to make the TANK unit form a sealed space.

[0009] Furthermore, the CDU unit includes an air pump, a flow meter, a one-way valve, a Y-type filter, an exhaust valve, a plate heat exchanger, and a water pump. These components are connected in sequence through pipelines to form a secondary heat exchange circuit.

[0010] Furthermore, the coolant of the TANK unit enters the plate heat exchanger through the secondary heat exchange loop, exchanges heat with the primary cooling water from the external cooling system, and then flows back to the TANK unit through the secondary heat exchange loop to complete the heat transfer.

[0011] Furthermore, the TANK unit is equipped with a guide plate and a turbulence structure inside. The guide plate and turbulence structure are used to guide the coolant to form an orderly circulating flow and increase the contact area between the coolant and the heat dissipation components.

[0012] Furthermore, both the CDU unit and the TANK unit are equipped with feet adapted for forklift handling at their bottoms.

[0013] Furthermore, the TANK unit includes a lighting interaction system, which has three-color status indicators: red, yellow, and blue. Blue corresponds to the normal operation of the device, yellow corresponds to the standby or standby status requiring operator attention, and red corresponds to the device malfunction or emergency shutdown status.

[0014] The advantages of this invention are that the CDU unit and TANK unit are independent and can be disassembled and spliced, and the standardized interface enables quick assembly and disassembly. This not only greatly reduces the difficulty of transportation, installation and maintenance, but also allows for individual repair of the corresponding unit in case of partial failure without shutting down the entire system, ensuring continuous system operation. Furthermore, it can flexibly match CDU units with different power specifications and TANK units with different volumes according to the cooling requirements of different application scenarios, adapting to diverse usage needs from edge computing centers to large data centers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an immersion liquid-cooled cabinet according to an embodiment of the present invention.

[0017] Figure 2 for Figure 1 An exploded perspective view of the immersion liquid-cooled cabinet according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the CDU unit according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the TANK unit according to an embodiment of the present invention.

[0020] Figure 5 for Figure 3 A schematic diagram of the internal structure of the CDU unit in an embodiment of the present invention.

[0021] Figure 6 for Figure 4 A schematic diagram of the structure of the pluggable heat dissipation module according to an embodiment of the present invention.

[0022] Figure 7 This is a control principle diagram of an immersion liquid-cooled cabinet according to an embodiment of the present invention. Detailed Implementation

[0023] The following detailed description of specific embodiments of the present invention, in conjunction with the accompanying drawings, is provided. Obviously, the described embodiments are merely a part of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention. The terms "upper," "lower," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of the invention is in use, and are only for ease of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

[0024] Please see Figures 1 to 7This invention discloses an immersion liquid-cooled cabinet, comprising independent and detachable CDU unit 100 and TANK unit 200. The CDU unit 100 and TANK unit 200 are detachably connected via a standardized interface. The TANK unit 200 contains coolant and heat dissipation components, while the CDU unit 100 drives coolant circulation and heat exchange with the TANK unit 200. The standardized interface includes mechanical, electrical, and liquid interface components, ensuring the accuracy, sealing, and compatibility of the connection between the CDU unit 100 and TANK unit 200. The CDU unit 100 integrates circulation drive components and heat exchange components, while the TANK unit 200 has a sealed structure to ensure the stability of coolant storage and heat exchange processes. The CDU unit 100 and TANK unit 200 are independent of each other, achieving precise positioning and stable connection through the standardized mechanical interface, sealed conduction of coolant through the standardized liquid interface, and transmission of control signals and power through the standardized electrical interface. In its disassembled state, the CDU unit 100 and TANK unit 200 can be transported, stored, or maintained independently, avoiding the inconvenience of transporting a single integrated cabinet and the impact of partial failures on the overall system operation. When assembled, they form a complete liquid cooling system to meet heat dissipation requirements. Based on a standardized interface design, CDU units 100 with different power specifications and TANK units 200 with different volumes can be flexibly matched according to the power density of the electronic equipment to be cooled and the cooling requirements of the deployment scenario.

[0025] The fluid connection between CDU unit 100 and TANK unit 200 adopts a chuck-type quick-connect structure 1. The chuck-type quick-connect structure 1 achieves double sealing through jaw clamping and sealing gasket contact. No complex calibration is required during assembly; simply insert the adapter into the chuck connector, rotate the locking mechanism to drive the jaws to retract and clamp, ensuring a tight fit between the connector end face and the sealing gasket, achieving high-pressure sealing and conduction of the fluid circuit. Disassembly is achieved by reversing the operation for quick separation, while the interface end maintains a temporary seal to prevent coolant leakage. The mechanical connection between CDU unit 100 and TANK unit 200 uses a positioning connection with two pins 2 and four bolts 3. The two pins 2 are used for precise alignment during assembly, and the four bolts 3 are used for rigid fastening after assembly. During assembly, the positioning pins are inserted into the corresponding pin holes. The clearance between the pins and the holes limits the horizontal and vertical displacement and rotational deviation of CDU unit 100 and TANK unit 200, quickly calibrating their relative positions and ensuring the coaxiality and fit of the fluid circuit and electrical interfaces. Precise alignment can be achieved without repeated adjustments. Four bolts 3 are evenly distributed around two pins 2, forming a symmetrical force-bearing structure. After positioning, the bolts are passed through the corresponding bolt holes and tightened. The preload of the bolts ensures that the splicing surfaces of CDU unit 100 and TANK unit 200 are tightly fitted, forming a rigid connection to resist vibration or external impact during transportation and operation. The symmetrically distributed bolts ensure uniform force on the splicing surfaces, avoid local deformation, further consolidate positioning accuracy, prevent displacement during long-term operation, and ensure the stability of hydraulic sealing and electrical connections.

[0026] Please see Figure 3 The heat dissipation assembly 210 includes several pluggable heat dissipation modules 211, which are detachably connected to the TANK unit 200 via standardized interfaces to allow for the combination of identical or different pluggable heat dissipation modules 211. Depending on the power density and heat dissipation requirements of the electronic device to be cooled, heat dissipation modules of the same specifications can be flexibly selected for array installation, or different functional heat dissipation modules can be combined to achieve differentiated heat dissipation. When a heat dissipation module fails or needs to be upgraded, the faulty module can be directly removed and replaced without downtime of the entire system, ensuring operational continuity.

[0027] Please see Figure 5 and Figure 7The CDU unit 100 includes an air pump 110, a flow meter 120, a one-way valve 130, a Y-type filter 140, an exhaust valve 150, a plate heat exchanger 160, and a water pump 170. These components are sequentially connected via pipelines to form a secondary heat exchange loop. The coolant from the TANK unit 200 enters the plate heat exchanger 160 through the secondary heat exchange loop, exchanges heat with the primary cooling water from the external cooling system, and then flows back to the TANK unit 200 through the secondary heat exchange loop, completing the heat transfer. The coolant in the TANK unit 200 absorbs heat generated by the electronic equipment in the pluggable heat dissipation module 211 and flows into the secondary heat exchange loop of the CDU unit 100 through the chuck-type quick-connect structure 1. After passing through the Y-type filter 140 for filtration, the one-way valve 130 for backflow prevention, and the flow meter 120 for monitoring, it is pressurized by the water pump 170 and sent to the plate heat exchanger 160 to exchange heat with the primary cooling water. After cooling, the coolant flows back to the TANK unit 200 through the loop, providing cooling for the pluggable heat dissipation module 211 again, forming a closed loop throughout the process, which continuously and efficiently removes the heat generated by the electronic equipment.

[0028] Please see Figure 6 The TANK unit 200 is internally equipped with a guide plate 2111 and a turbulence-inducing structure 2112. The guide plate 2111 and turbulence-inducing structure 2112 guide the coolant to form an orderly circulating flow, increasing the contact area between the coolant and the heat dissipation components 210. The guide plate 2111 is arranged at a specific angle and spacing according to the structure of the TANK unit 200, the layout of the heat dissipation components 210, and the inlet and outlet positions of the secondary heat exchange circuit, forming multiple parallel main circulation channels. After the coolant returns from the CDU unit 100 to the TANK unit 200, it flows along the preset channels to each pluggable heat dissipation module 211 under the obstruction and guidance of the guide plate 2111, preventing disordered diffusion of the coolant and the formation of dead zones. Simultaneously, the guide plate 2111 can precisely guide the coolant to the key heat-generating areas of the heat dissipation components 210, ensuring that each module receives sufficient coolant supply and guaranteeing uniform heat dissipation. The turbulence-inducing structures 2112 are distributed within the main circulation channel and around the heat dissipation assembly 210. When the coolant flows along the guide plate 2111, the protruding turbulence-inducing structures 2112 disrupt the laminar flow of the coolant, causing irregular eddies and disturbances. In turbulent flow, the coolant molecules move more violently, which can break the boundary layer thermal resistance on the surface of the heat dissipation assembly 210 and increase the relative velocity between the coolant and the surface of the heat dissipation assembly 210, thereby improving heat transfer efficiency. In addition, turbulence can also allow the coolant to penetrate evenly into the gaps of the heat dissipation assembly 210, further expanding the actual contact area.

[0029] Please see Figure 1The TANK unit 200 includes an electric door 220. Sealing cotton is arranged around the electric door 220. The electric door 220 can generate pressure and apply it to the sealing cotton to form a sealed space within the TANK unit 200. This sealed space reduces coolant evaporation loss, maintains stable coolant level and circulation pressure, ensures uniform coolant supply to each pluggable heat dissipation module 211, avoids reduced heat dissipation efficiency due to leakage or pressure fluctuations, and guarantees long-term stable operation of electronic equipment. The TANK unit 200 includes a lighting interaction system 230 with red, yellow, and blue status indicators. Blue corresponds to normal operation, yellow to standby or requiring operator attention, and red to equipment malfunction or emergency shutdown.

[0030] Both the CDU unit 100 and the TANK unit 200 are equipped with forklift-compatible feet 4 at their bottom. During transport, no additional securing or disassembly of the unit is required; the forklift forks are simply inserted into the space between the feet 4. The forks support the load-bearing structure at the bottom of the unit, distributing the weight through the support bases of the feet 4, thus preventing structural damage caused by direct contact between the forks and the unit body. The height design of the feet 4 ensures sufficient lifting space after the forks are inserted, and the unit's center of gravity is within the fork support range, guaranteeing balance and stability during transport. This allows for independent and rapid transport of both the CDU unit 100 and the TANK unit 200.

[0031] The immersion liquid-cooled cabinet provided by this invention features an independent and detachable structure for the CDU unit 100 and TANK unit 200, which, along with standardized interfaces, enables rapid assembly and disassembly. This significantly reduces the difficulty of transportation, installation, and maintenance. In the event of a partial failure, the corresponding unit can be repaired individually without shutting down the entire system, ensuring continuous system operation. Furthermore, it allows for flexible matching of CDU units 100 with different power specifications and TANK units 200 with different volumes to meet the diverse usage needs from edge computing centers to large data centers, based on the cooling capacity requirements of different application scenarios.

Claims

1. An immersion liquid-cooled cabinet, characterized in that, It includes independent and detachable CDU units and TANK units, wherein the CDU units and TANK units are detachably connected via a standardized interface; the TANK units are used to contain coolant and heat dissipation components, and the CDU units are used to drive coolant circulation and exchange heat with the TANK units.

2. The immersion liquid-cooled cabinet according to claim 1, characterized in that, The fluid circuit connection between the CDU unit and the TANK unit adopts a chuck-type quick-connect structure.

3. The immersion liquid-cooled cabinet according to claim 1, characterized in that, The mechanical connection between the CDU unit and the TANK unit is a positioning connection using two pins and four bolts. The two pins are used for precise alignment during splicing, and the four bolts are used for rigid fastening after splicing.

4. The immersion liquid-cooled cabinet according to claim 1, characterized in that, The heat dissipation assembly includes several pluggable heat dissipation modules, which are detachably connected to the TANK unit through a standardized interface to enable the combination of the same or different pluggable heat dissipation modules.

5. The immersion liquid-cooled cabinet according to claim 1, characterized in that, The TANK unit includes an electric door, and the TANK unit is provided with sealing cotton around the electric door. The electric door can generate pressure and apply it to the sealing cotton to make the TANK unit form a sealed space.

6. The immersion liquid-cooled cabinet according to claim 1, characterized in that, The CDU unit includes an air pump, a flow meter, a one-way valve, a Y-type filter, an exhaust valve, a plate heat exchanger, and a water pump. These components are connected in sequence through pipelines to form a secondary heat exchange circuit.

7. The immersion liquid-cooled cabinet according to claim 6, characterized in that, The coolant of the TANK unit enters the plate heat exchanger through the secondary heat exchange loop, exchanges heat with the primary cooling water from the external cooling system, and then flows back to the TANK unit through the secondary heat exchange loop to complete the heat transfer.

8. The immersion liquid-cooled cabinet according to claim 1, characterized in that, The TANK unit is equipped with a guide plate and a turbulence structure inside. The guide plate and turbulence structure are used to guide the coolant to form an orderly circulation flow and increase the contact area between the coolant and the heat dissipation components.

9. The immersion liquid-cooled cabinet according to claim 1, characterized in that, Both the CDU unit and the TANK unit are equipped with feet adapted for forklift handling at their bottoms.

10. The immersion liquid-cooled cabinet according to claim 1, characterized in that, The TANK unit includes a lighting interaction system, which has three-color status indicators: red, yellow, and blue. Blue corresponds to the normal operation of the equipment, yellow corresponds to the standby or standby status requiring operator attention, and red corresponds to the equipment malfunction or emergency shutdown status.

Images