A direct cold plate interface device

Abstract

The utility model relates to the technical field of refrigeration equipment, especially direct cooling system's cold board interface device sealing enhancement design, a direct cooling board interface device, including pipeline connector, cold board connecting seat, air inlet pipe and air outlet pipe, the pipeline connector is assembled in the upper surface of cold board connecting seat, is fixed through countersunk screw, the pipeline connector and cold board connecting seat all are equipped with the mounting hole for assembling air inlet pipe and air outlet pipe, its characterized in being still including sealing structure and heat preservation cover, the sealing structure is assembled between the joint surface of pipeline connector and cold board connecting seat, heat preservation cover is assembled in the outside of pipeline connector and cold board connecting seat.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to the enhanced sealing design of the cold plate interface device of a direct cooling system. Background Technology

[0002] In direct-cooling heat dissipation systems, copper-aluminum connectors serve as crucial connecting components for refrigerant circulation, and their technical characteristics directly impact system operational stability. Current mainstream direct-cooling solutions utilize compressors to drive refrigerant circulation within the heat dissipation pipes, achieving efficient heat exchange. However, this approach presents two major challenges: First, the connectors are exposed to ambient air. When low-temperature refrigerant flows through them, the surface temperature is significantly lower than the ambient dew point, causing water vapor to condense on the connector surface, forming droplets. This not only affects the equipment's insulation performance but may also lead to short-circuit risks. Second, the system continuously maintains an operating pressure of 2-4 MPa, far exceeding the pressure levels of conventional heat dissipation systems, placing stringent requirements on the pressure resistance, material compatibility, and long-term reliability of the connector's sealing structure.

[0003] Chinese patent document CN116546785A discloses a direct liquid-cooled plate heat dissipation device. In this technical solution, refrigerant is injected into the housing through a liquid inlet nozzle via a drive pump. Inside the housing, the refrigerant comes into direct contact with the PCBA board and rapidly absorbs the heat generated by the board through heat conduction. A turbulence column inside the housing forms a directional flow channel, guiding the refrigerant to evenly cover the surface of the PCBA board. Simultaneously, a partition plate separates the liquid inlet and outlet areas, forcing the refrigerant to flow along a designed path. After fully absorbing heat, the refrigerant flows out through the liquid outlet nozzle. The high-temperature refrigerant then enters the radiator, where it exchanges heat with the external environment, releasing heat and cooling down. It is then pumped back into the housing by the drive pump, forming a closed loop.

[0004] However, the above-mentioned device has the following drawbacks: the enclosure and cover plate rely solely on screws to tighten the sealing ring to achieve a seal. Under long-term vibration or hot and cold cycling conditions, the refrigerant is prone to leakage due to aging of the sealing ring or uneven stress, which may damage the electronic components of the PCBA board; the entire enclosure is directly exposed to the external environment and lacks temperature isolation measures, so fluctuations in ambient temperature may affect the stability of the refrigerant's operating temperature. Utility Model Content

[0005] To overcome the shortcomings of the prior art, a direct cooling plate interface device is provided.

[0006] This utility model is achieved through the following technical solution: a direct-cooled plate interface device, including a pipe connector, a cold plate connecting seat, an air inlet pipe, and an air outlet pipe; the pipe connector is assembled on the upper surface of the cold plate connecting seat and fixed by countersunk screws; both the pipe connector and the cold plate connecting seat are provided with mounting holes for assembling the air inlet pipe and the air outlet pipe; characterized in that it further includes a sealing structure and a heat insulation cover; the sealing structure is assembled between the mating surfaces of the pipe connector and the cold plate connecting seat; the heat insulation cover is assembled on the outside of the pipe connector and the cold plate connecting seat.

[0007] In a preferred embodiment of this utility model, the heat insulation cover includes two mutually cooperating half-covers, which are connected by a snap fastener.

[0008] In a preferred embodiment of this utility model, the sealing structure includes a sealing ring; the sealing ring is embedded in a mounting groove opened on the upper surface of the cold plate connecting seat; the mounting groove is arranged around the mounting hole.

[0009] In a preferred embodiment of this utility model, in the unassembled state, the top height of the sealing ring is higher than the upper surface of the cold plate connector; after assembly, the sealing ring is compressed between the lower surface of the pipe connector and the mounting groove to form a seal.

[0010] In a preferred embodiment of this utility model, the heat insulation cover is filled with heat insulation cotton.

[0011] In a preferred embodiment of this utility model, the upper surfaces of the two semi-circular covers are provided with semi-arc-shaped covers that fit the outer walls of the air inlet and air outlet pipes, and the two semi-arc-shaped covers form through holes for the air inlet and air outlet pipes to pass through.

[0012] In a preferred embodiment of this utility model, the semi-circular cover and the semi-cover are integrally formed structures.

[0013] In a preferred embodiment of this utility model, the pipe connector is provided with an assembly hole that mates with the countersunk screw, and the cold plate connector is provided with a threaded hole that mates with the countersunk screw.

[0014] In a preferred embodiment of the present invention, the joint surfaces of the two half-body of the heat insulation cover are provided with mutually cooperating positioning protrusions and positioning grooves, and the positioning protrusions and positioning grooves are distributed at intervals along the edges of the half-body.

[0015] In a preferred embodiment of this utility model, the lower edge of the heat insulation cover is provided with an inwardly extending flange, which is fixed to the bottom of the cold plate connecting seat by fasteners.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] A direct-cooling plate interface device, through the combined design of a sealing structure and an insulation cover, improves the sealing and thermal insulation performance of the interface device, effectively prevents coolant leakage, reduces the loss of cooling capacity caused by the intrusion of ambient heat, maintains the interface surface temperature to prevent condensation, and ensures the cooling efficiency of the direct-cooling plate system.

[0018] Furthermore, the split-type half-cover design facilitates quick installation and disassembly, reducing maintenance difficulty. At the same time, the snap-fit ​​connection structure is simple and reliable, requiring no additional tools.

[0019] Furthermore, the sealing rings are arranged around the mounting holes to achieve key sealing at critical pipe interfaces, effectively preventing refrigerant gas from leaking from around the mounting holes.

[0020] Furthermore, when not assembled, the sealing ring is higher than the surface of the cold plate. After assembly, the pipe connector presses down on the sealing ring, utilizing its elastic material properties to generate a continuous sealing force, compensating for wear or deformation during long-term use. The pre-compression design ensures that the sealing ring maintains its elastic deformation after assembly, forming a long-term reliable dynamic seal, adapting to sealing requirements under temperature changes or vibration environments.

[0021] Furthermore, the insulation cotton filling improves the thermal resistance performance of the insulation cover and reduces system energy consumption.

[0022] Furthermore, the semi-circular cover fits snugly against the outer wall of the air inlet / outlet pipe, reducing the gap between the pipe and the insulation cover, minimizing heat exchange in this area, and reducing cold loss and the risk of condensation.

[0023] Furthermore, the one-piece molding structure eliminates the assembly gaps between the semi-circular cover and the semi-cover, improving the overall sealing performance and structural strength.

[0024] Furthermore, countersunk screws ensure a smooth surface on the connector, preventing the screw heads from protruding and interfering with the assembly of the insulation cover or scratching other components.

[0025] Furthermore, the protrusions and grooves distributed along the edge of the semi-enclosure form a mechanical positioning structure. During assembly, the protrusions and grooves guide the semi-enclosure to be accurately spliced, ensuring sealing and insulation performance. The positioning protrusions and grooves work together to achieve quick and precise alignment of the semi-enclosure, improving assembly efficiency and preventing a decrease in insulation performance due to misalignment.

[0026] Furthermore, the flange increases the contact area between the insulation cover and the cold plate connector. Fasteners such as screws pass through the flange holes and are fixed to the bottom of the cold plate connector, forming a mechanical lock and improving vibration resistance. The flange structure, fixed by fasteners, enhances the connection stability between the insulation cover and the cold plate connector, preventing the insulation cover from loosening due to vibration or temperature changes.

[0027] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the structure of a direct cooling plate interface device according to the present invention;

[0030] Figure 2 This is a cross-sectional schematic diagram of a direct cooling plate interface device according to the present invention;

[0031] The annotations in the attached figures are explained as follows:

[0032] Pipe connector 1, cold plate connector 2, air inlet pipe 3, air outlet pipe 4, countersunk screw 5, mounting hole 6, sealing structure 7, insulation cover 8, half cover 81, sealing ring 71, insulation cotton 82, semi-circular cover 811, through hole 9, assembly hole 12, threaded hole 22, positioning protrusion 812, positioning groove 813. Detailed Implementation

[0033] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0034] In the following description, terms such as “inner,” “outer,” “upper,” “lower,” “left,” and “right” are used only to facilitate the description of the embodiments and simplify the description, and are not intended to 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 this utility model.

[0035] like Figures 1 to 2 As shown, the present invention provides a direct cooling plate interface device, which mainly consists of a pipe connector 1, a cooling plate connector 2, an air inlet pipe 3, an air outlet pipe 4, a sealing structure 7, and a heat insulation cover 8. The pipe connector 1 is fixed to the upper surface of the cooling plate connector 2 by countersunk screws 5. A sealing structure 7 is fitted between the mating surfaces of the two, and the exterior is covered by a heat insulation cover 8, forming an interface device with optimized sealing and thermal insulation.

[0036] Specifically, the pipe connector 1 and the cold plate connector 2 have multiple sets of mounting holes 6 for the air inlet pipe 3 and the air outlet pipe 4 to pass through. The core of the sealing structure 7 is the sealing ring 71, which is embedded in the mounting groove on the upper surface of the cold plate connector 2. The mounting groove surrounds the mounting holes 6 to ensure that the sealing ring 71 accurately covers the critical area of ​​the pipe interface. When not assembled, the top of the sealing ring 71 is higher than the surface of the cold plate connector 2; after assembly, the lower surface of the pipe connector 1 compresses the sealing ring 71, causing it to elastically deform and form a continuous and reliable dynamic seal, effectively adapting to the sealing requirements under long-term vibration or hot and cold cycle conditions.

[0037] The insulation cover 8 consists of two half-covers 81 connected by snap-fits. The insulation cover 8 wraps around the joint between the pipe connector 1 and the cold plate connector 2, as well as the root area of ​​the air inlet pipe 3 and the air outlet pipe 4; the interior is filled with low thermal conductivity insulation cotton 82. The upper end face of each half-cover 81 has a semi-arc-shaped cover 811, which, when spliced ​​together, forms a through hole 9 that fits the outer wall of the air inlet pipe 3 and the air outlet pipe 4, reducing the gap between the pipe and the insulation cover 8 and reducing the impact of heat convection and radiation. The semi-arc-shaped cover 811 and the half-cover 81 are integrally molded, eliminating assembly gaps and improving structural strength and thermal insulation performance.

[0038] To ensure assembly accuracy, positioning protrusions 812 and positioning grooves 813 are distributed at intervals along the edge of the mating surface of the half-cover 81, achieving rapid alignment through mechanical positioning. The lower edge of the heat insulation cover 8 is provided with an inwardly extending flange, which is fixed to the bottom of the cold plate connecting seat 2 by fasteners to enhance the connection stability and prevent loosening due to vibration or temperature changes.

[0039] The mounting hole 12 of the pipe connector 1 and the threaded hole 22 of the cold plate connector 2 are fastened by countersunk screws 5. The screw head is recessed into the surface of the pipe connector 1 to keep the external structure smooth and avoid interfering with the assembly of the insulation cover 8 or scratching other parts.

[0040] This device effectively addresses the challenges of high-pressure sealing through the pre-compression design of the sealing ring 71, and significantly reduces the cold loss at the interface and maintains its surface temperature above the ambient dew point through the multi-layer heat insulation structure of the insulation cover 8. This simultaneously solves the risks of coolant leakage caused by sealing failure in traditional interface devices, as well as the risks of condensation and potential short circuits caused by excessively low surface temperatures, significantly improving the reliability and energy efficiency of the direct cooling plate system under complex operating conditions.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A direct-cooling plate interface device, comprising a pipe connector (1), a cold plate connecting seat (2), an air inlet pipe (3), and an air outlet pipe (4); the pipe connector (1) is mounted on the upper surface of the cold plate connecting seat (2) and fixed by countersunk screws (5); both the pipe connector (1) and the cold plate connecting seat (2) are provided with mounting holes (6) for mounting the air inlet pipe (3) and the air outlet pipe (4); characterized in that, It also includes a sealing structure (7) and a heat insulation cover (8); the sealing structure (7) is assembled between the mating surfaces of the pipe connector (1) and the cold plate connector (2); the heat insulation cover (8) is assembled on the outside of the pipe connector (1) and the cold plate connector (2).

2. The direct cooling plate interface device according to claim 1, characterized in that, The heat insulation cover (8) includes two mutually cooperating half-covers (81), which are connected by snap fasteners.

3. The direct cooling plate interface device according to claim 1, characterized in that, The sealing structure (7) includes a sealing ring (71); the sealing ring (71) is embedded in the mounting groove opened on the upper surface of the cold plate connecting seat (2); the mounting groove is arranged around the mounting hole (6).

4. The direct cooling plate interface device according to claim 3, characterized in that, In the unassembled state, the top of the sealing ring (71) is higher than the upper surface of the cold plate connector (2); after assembly, the sealing ring (71) is compressed between the lower surface of the pipe connector (1) and the mounting groove to form a seal.

5. The direct cooling plate interface device according to claim 1, characterized in that, The heat insulation cover (8) is filled with heat insulation cotton (82).

6. The direct cooling plate interface device according to claim 2, characterized in that, The upper surfaces of the two semi-circular covers (81) are provided with semi-circular covers (811) that fit the outer walls of the air inlet pipe (3) and the air outlet pipe (4), and the two semi-circular covers (811) form through holes (9) for the air inlet pipe (3) and the air outlet pipe (4) to pass through.

7. The direct cooling plate interface device according to claim 6, characterized in that, The semi-circular cover (811) and the half cover (81) are integrally formed structures.

8. The direct cooling plate interface device according to claim 1, characterized in that, The pipe connector (1) is provided with an assembly hole (12) that mates with the countersunk screw (5), and the cold plate connector (2) is provided with a threaded hole (22) that mates with the countersunk screw (5).

9. A direct cooling plate interface device according to claim 6, characterized in that, The two half-covers (81) of the heat insulation cover (8) are provided with mutually cooperating positioning protrusions (812) and positioning grooves (813) at the joint surface. The positioning protrusions (812) and positioning grooves (813) are distributed at intervals along the edge of the half-covers (81).

10. A direct cooling plate interface device according to claim 1, characterized in that, The lower edge of the heat insulation cover (8) is provided with an inwardly extending flange, which is fixed to the bottom of the cold plate connecting seat (2) by fasteners.

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