Liquid cooling assembly

By designing a joint that allows for floating tolerances in both axial and angular directions, combined with O-ring seals and clamping components, the rigid connection problem between the tube body and the cold plate in the liquid cooling system was solved, achieving both fluid sealing and ease of maintenance.

CN224083918UActive Publication Date: 2026-04-03COOLER MASTER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing liquid cooling systems, the rigid connection between the tube and the cold plate makes the installation process sensitive to misalignment height, which can easily cause stress damage and leakage, and also makes maintenance inconvenient.

Method used

Design a joint that allows for floating tolerances in both axial and angular directions. Through a combination of O-ring seals and clamps, it provides flexible adjustment to accommodate changes in the position of the cold plate, ensuring fluid tightness and ease of maintenance.

Benefits of technology

The system compensates for misalignment during installation, enhances its durability and ease of maintenance, reduces the impact of mechanical stress on the connection, prevents leakage, and accommodates the thermal expansion and mechanical displacement of the cold plate.

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Abstract

The utility model discloses a liquid cooling assembly which comprises a first cold plate with a first interface and a third interface and a second cold plate with a second interface and a fourth interface. A cavity is defined by the inner wall of the shell of each connector. The first tube body is in fluid communication with the first interface and the second interface. The first joint and the second joint are respectively provided with a wide diameter part and a narrow diameter part. Wherein the two narrow diameter parts are respectively coupled to two opposite ends of the first pipe body, and are respectively arranged in the first interface and the second interface. Each wide diameter part is arranged in the first interface and the second interface and comprises a plurality of grooves provided with a plurality of O-shaped rings. Each end of the first tube has a portion disposed within the housing. And the part is separated from the inner wall of the shell by a distance.
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Description

Technical Field

[0001] This utility model relates to a fluid connector, and more particularly to a connector that provides floating tolerances for fluid communication between multiple cold plates connected by a pipe or conduit. Background Technology

[0002] In liquid cooling systems, fluid fittings are used to connect pipes or tubes to cold plates where fluid flow is required for cooling or other similar purposes. Generally, barbed fittings are used to attach the pipe to an interface on the cold plate. Specifically, the barb is secured to the interface, and the pipe is pushed past the barb to form a secure and fluid-tight connection.

[0003] However, this design has certain drawbacks. The fixed connection between the barb and the connector does not allow any movement of the tubing. Therefore, this assembly is highly sensitive to misalignment during installation. Even slight deviations in position will stress the tubing and the connection, potentially leading to damage or leaks over time. The rigid connection also makes separating and reconnecting the tubing inconvenient when maintaining or replacing components. A considerable amount of force is typically required to pull the tubing from the barb, which, especially in densely packed systems, could damage the tubing assembly or surrounding components.

[0004] The aforementioned limitations are particularly evident in applications requiring frequent maintenance or where precise alignment is difficult to achieve. Because the joints or tube assemblies cannot support axial or angular movement, they may eventually fail due to mechanical stress and wear. Utility Model Content

[0005] This invention addresses these problems by introducing a novel joint design that allows for floating tolerances in both axial and angular directions. This design provides flexibility and compensates for misalignment during installation, and facilitates component replacement without compromising the integrity of the connection.

[0006] An embodiment of this utility model discloses a liquid cooling assembly for installation in an electronic device, comprising a first cold plate, a second cold plate, a first interface, a second interface, a third interface, a fourth interface, multiple cavities, a first tube, a first connector, and a second connector. The first and second cold plates are each thermally coupled to a heat source and are separated from each other. The first interface is located on the first cold plate. The second interface is located on the second cold plate. The first and second interfaces are used to allow working fluid to circulate between the first and second cold plates. The third interface is located on the first cold plate. The fourth interface is located on the second cold plate. The third and fourth interfaces are used to allow working fluid to circulate between the first and second cold plates and an external heat exchanger. An inner wall of a housing of each interface surrounds a cavity. The first tube is in fluid communication with the first and second interfaces. The first and second connectors each have a wide-diameter portion and a narrow-diameter portion. The two narrow-diameter portions are respectively coupled to opposite ends of the first tube and are respectively placed within the first and second interfaces. Each wide-diameter section is disposed within the first and second interfaces and includes multiple grooves with multiple O-rings. These O-rings abut tightly against the inner wall of the housing. Each end of the first tube has a portion disposed within the housing. This portion is spaced apart from the inner wall of the housing by a distance.

[0007] In one embodiment of this utility model, the first tube is a hollow metal tube.

[0008] In one embodiment of the present invention, a first groove and a second groove are formed on opposite sidewalls of the housing. Each of the first and second grooves has a portion extending to the top surface of the housing. The first and second grooves are used to receive a clamping member.

[0009] In one embodiment of this invention, the first groove, the second groove, and the cavity define a neck. The neck is located above the cavity.

[0010] In one embodiment of this utility model, the clamping member has a first leg and a second leg. The first leg and the second leg are respectively disposed in a first groove and a second groove. The first leg and the second leg are connected by a bridging segment located above the neck.

[0011] In one embodiment of this invention, a third groove is formed above the neck. A tool groove intersects with the third groove. The third groove connects to the first groove and the second groove to form a unified groove. The tool groove is used for removing the clamping member.

[0012] In one embodiment of the present invention, the bridging section of the clamping member is hidden by a third groove and abuts against the neck.

[0013] In one embodiment of this utility model, the first interface, the second interface, and the integration groove are rectangular.

[0014] In one embodiment of this utility model, the first interface, the second interface, and the integration groove are circular.

[0015] In one embodiment of this utility model, the first tube is used to move and shift angularly and axially along an X-axis, a Y-axis, and a Z-axis. The X-axis extends longitudinally along the length of the first tube. The Y-axis extends horizontally and is perpendicular to the X-axis. The Z-axis extends vertically and is perpendicular to both the X-axis and the Y-axis.

[0016] An embodiment of this utility model discloses a liquid cooling assembly for installation in an electronic device, comprising at least two first cold plates, at least two second cold plates, at least two first interfaces, at least two second interfaces, at least two third interfaces, at least two fourth interfaces, multiple cavities, at least two first tubes, at least two first connectors, and at least two second connectors. The at least two first cold plates and at least two second cold plates are arranged alternately on a main board and thermally coupled to a heat source. The first interfaces are located on the first cold plates. The second interfaces are located on the second cold plates. The first and second interfaces are used to allow working fluid to circulate between the first and second cold plates. The third interfaces are located on the first cold plates. The fourth interfaces are located on the second cold plates. The third interfaces are used to allow working fluid to circulate between the first cold plates and a second internal manifold. The fourth interfaces are used to allow working fluid to circulate between the second cold plates and a first internal manifold. An inner wall of a housing of each interface surrounds a cavity. The first tubes are in fluid communication with the first and second interfaces, respectively. Each of the first and second connectors has a wide-diameter portion and a narrow-diameter portion. The narrow-diameter portions are coupled to opposite ends of the first tubes and are respectively placed within the first and second interfaces. Each wide-diameter portion is disposed within the first and second interfaces and includes multiple grooves with multiple O-rings. The O-rings abut tightly against the inner wall of the housing. Each end of the first tube has a portion that is placed within the housing. This portion is spaced apart from the inner wall of the housing by a distance.

[0017] In one embodiment of the present invention, each of the at least two first tubes is a hollow metal tube.

[0018] In one embodiment of the present invention, a first groove and a second groove are formed on the opposite sidewalls of the housing of the first interfaces and the second interfaces. The first groove and the second groove each have a portion extending to the top surface of the housing. The first groove and the second groove are used to receive a clamping member.

[0019] In one embodiment of the present invention, the first groove, the second groove, and the cavity define a neck, which is located above the cavity.

[0020] In one embodiment of the present invention, the clamping member has a first leg and a second leg, the first leg and the second leg being respectively disposed in the first groove and the second groove, and the first leg and the second leg being connected by a bridging segment located above the neck.

[0021] In one embodiment of this utility model, it further includes:

[0022] A third groove is formed above the neck; and

[0023] A tool slot intersects with the third groove, the third groove being connected to the first groove and the second groove to form a unified groove, and the tool slot is used for removing the clamping member.

[0024] In one embodiment of the present invention, the bridging section of the clamping member is concealed in the third groove and abuts against the neck.

[0025] In one embodiment of the present invention, each first tube has a chamber comprising a first barb, a second barb, and a third barb.

[0026] In one embodiment of the present invention, each first barb and the second barb are coupled to the second end of the corresponding annular ring and separated from each other, and the first barb and the second barb are connected by a second flexible tube.

[0027] In one embodiment of the present invention, at least one of the first interfaces and the second interfaces, as well as the integration slot, are rectangular.

[0028] In one embodiment of the present invention, at least one of the first interfaces and the second interfaces, as well as the integration groove, are circular.

[0029] In one embodiment of this utility model, the first tube is used to move and shift angularly and axially along an X-axis, a Y-axis, and a Z-axis. The X-axis extends longitudinally along the length of the first tube. The Y-axis extends horizontally and is perpendicular to the X-axis. The Z-axis extends vertically and is perpendicular to both the X-axis and the Y-axis.

[0030] In one embodiment of this utility model, the liquid cooling assembly further includes at least two first pipes, at least two second pipes, a first internal manifold, and a second internal manifold. The first internal manifold is disposed on a first inner sidewall of the electronic device and is in fluid communication with the second cold plates through the first pipes. The second internal manifold is disposed on a second inner sidewall of the electronic device and is in fluid communication with the first cold plates through the second pipes.

[0031] In one embodiment of this utility model, the first pipes and the second pipes are hollow metal pipes.

[0032] In one embodiment of this invention, the first pipes and the second pipes are flexible hoses.

[0033] In one embodiment of this invention, each first pipe includes a pair of third barbs. The pair of third barbs are respectively connected to the fourth interface and the first inner manifold.

[0034] In one embodiment of this invention, each first pipe includes a pair of fourth barbs. The pair of fourth barbs are respectively connected to the third interface and the second inner manifold.

[0035] The above description of the present utility model and the following description of the embodiments are used to demonstrate and explain the principle of the present utility model, and to provide a further explanation of the scope of the patent application of the present utility model. Attached Figure Description

[0036] When referring to the drawings together, various embodiments of this utility model can be understood from the following description. It should be noted that, according to industry standard practice, the various features are not drawn to scale. In fact, for clarity of discussion, the dimensions of various features may be increased or decreased.

[0037] Figure 1 A perspective view of a liquid cooling system according to an embodiment of the present invention is shown.

[0038] Figure 2A Show Figure 1 An exploded 3D view of the liquid cooling components.

[0039] Figure 2B A perspective view of some of the novel connectors is shown in relatively detail.

[0040] Figure 2C This is a sectional view of the connected interfaces, joints, and pipe bodies.

[0041] Figure 3A This is a side view of the cold plate connected to the tube, showing that the tube can move and shift along the Z-axis.

[0042] Figure 3B This is a plan view of the liquid cooling system, showing that the tube can move and shift along the Y-axis.

[0043] Figure 3C This is a side view of the inside of the interface, showing that there is an appropriate gap between the tube and the inner wall of the housing, allowing the tube to move and shift at an angle.

[0044] Figure 3D This is a side view of the cold plate connected to the tube, showing that the tube can move and shift along the X-axis.

[0045] Figure 4A A perspective view showing a clamping system and a groove for fixing a tube body according to an embodiment of the present invention is shown.

[0046] Figure 4B A cross-sectional view is shown of a clamping system and a groove for fixing a tube body according to an embodiment of the present invention.

[0047] Figure 5A A perspective view showing a clamping system and a groove for fixing a tube body according to another embodiment of the present invention is shown.

[0048] Figure 5B A cross-sectional view is shown of a clamping system and a groove for fixing a tube body according to another embodiment of the present invention.

[0049] Figure 6A A perspective view of a liquid cooling assembly according to another embodiment of the present invention is shown.

[0050] Figure 6B The diagram shows a cross-sectional view of the connected interfaces, joints, barbs, and pipe body.

[0051] Figure 7A A perspective view of a liquid cooling assembly disposed in an electronic device according to another embodiment of the present invention is shown.

[0052] Figure 7B A perspective view of a liquid cooling assembly not disposed in an electronic device, according to another embodiment of the present invention, is shown.

[0053] Figure 8A A perspective view showing a clamping system and a groove for fixing a tube body according to another embodiment of the present invention is shown.

[0054] Figure 8B A cross-sectional view showing a clamping system according to another embodiment of the present invention and a groove for fixing the tube body in the longitudinal direction is shown.

[0055] Figure 8C A perspective view of a clamping system and a groove for fixing a tube body, according to another embodiment of the present invention, is shown, wherein a portion of the housing of the interface is removed.

[0056] Figure 8D A cross-sectional view showing a clamping system according to another embodiment of the present invention and a groove for fixing the tube body in the lateral direction is shown.

[0057] In the attached figures, the following labels are used:

[0058] 100, 100A, 100B: Liquid cooling components

[0059] 102,302: First cold plate

[0060] 104, 304: Second cold-rolled steel plate

[0061] 106, 206, 306, 406: First interface

[0062] 108, 208, 308: Second interface

[0063] 110, 310: Third interface

[0064] 112,312: Fourth interface

[0065] 114,414: Shell

[0066] 116: Inner wall

[0067] 118,418: Cavity

[0068] 120:First tube body

[0069] 122,222,422: First connector

[0070] 124: Second connector

[0071] 126: Trench

[0072] 128: O-ring

[0073] 130: Narrow diameter section

[0074] 132: Wide diameter section

[0075] 134: Spacing

[0076] 136:Third tube body

[0077] 138:The fourth tube body

[0078] 140: First Groove

[0079] 142: Second groove

[0080] 144: Part

[0081] 146: Top surface

[0082] 148,448: Clamping components

[0083] 150, 450: First leg

[0084] 152,452: Second leg

[0085] 154,454: Bridging section

[0086] 156,456: Neck

[0087] 158: Third Groove

[0088] 160,460: Tool slots

[0089] 190: Mounting screws

[0090] 220, 280: Hose

[0091] 260: Second ring

[0092] 262,266,466: First end

[0093] 258,264,464: Second end

[0094] 268,468: First annular ring

[0095] 270,470: First barb

[0096] 272: Second barb

[0097] 300: Motherboard

[0098] 314: First Pipeline

[0099] 316: Second Pipeline

[0100] 318: First internal manifold

[0101] 320: Second internal manifold

[0102] 322: First inner wall

[0103] 324: Second inner wall

[0104] 336: Third connector

[0105] 338: Fourth connector

[0106] 380: Electronic devices

[0107] 440: Circular groove Detailed Implementation

[0108] The following description, in conjunction with the accompanying drawings, illustrates the embodiments and technical content of this utility model. However, it should be understood that the embodiments and drawings disclosed herein are merely illustrative and exemplary, and are not intended to limit the scope of this utility model.

[0109] Figure 1 A perspective view of a liquid cooling system according to an embodiment of the present invention is shown. Figure 2A Show Figure 1 An exploded 3D view of the liquid cooling components. Figure 2B A perspective view of some of the novel connectors is shown in relatively detail. Figure 2C This is a sectional view of the connected interfaces, joints, and pipe bodies.

[0110] See Figure 1The liquid cooling assembly 100 includes a first cold plate 102 and a second cold plate 104, both made of a thermally conductive material such as copper or aluminum. The first cold plate 102 and the second cold plate 104 are thermally coupled to a heat source or similar component such as a CPU, GPU, or server. The first cold plate 102 and the second cold plate 104 are separate and positioned on either side of a heat source (not shown), forming a designated path for the flow of working fluid (not shown) between the first cold plate 102 and the second cold plate 104. Each of the first cold plate 102 and the second cold plate 104 includes multiple interfaces. These interfaces allow the working fluid to circulate between the first cold plate 102, the second cold plate 104, and an external heat exchanger.

[0111] A first interface 106 and a third interface 110 are disposed on a first cold plate 102, while a second interface 108 and a fourth interface 112 are disposed on a second cold plate 104. The first opening direction of the first interface 106 faces the second opening direction of the second interface 108. The third opening direction of the third interface 110 does not face the fourth opening direction of the fourth interface 112. A third tube 136 and a fourth tube 138 are respectively placed in the third interface 110 and the fourth interface 112 for connecting the cold plate and the heat exchanger. In one embodiment, the housing 114 of the interface is rectangular to provide a large surface area for the entry and exit of the working fluid, but the embodiment is not limited thereto. In another embodiment, the housing 114 may be circular to provide a more flexible configuration. The liquid cooling assembly 100 for an electronic device (not shown) further includes a plurality of mounting screws 190. These mounting screws 190 are disposed on the first cold plate 102 and the second cold plate 104 and are used to fix the fixture.

[0112] See Figures 2A to 2C Each interface has a housing 114. The housing 114 has an inner wall 116 surrounding a cavity 118. The cavity 118 is designed to receive working fluid flowing from the first tube 120 and guide the working fluid into the first cold plate 102 to absorb heat. The first tube 120 connects and is in fluid communication with the first interface 106 and the second interface 108. The first tube 120 allows working fluid to flow between the first cold plate 102 and the second cold plate 104 to carry heat away from the heat source. In one embodiment, the first tube is a hollow tube made of a metal such as stainless steel or aluminum, which has durability and high thermal conductivity, but the embodiments are not limited thereto. In another embodiment, the first tube 120 may be made of an elastic material such as silicone or rubber and may include internal barbs. The internal barbs are designed to enhance fluid sealing and secure the connection within the interface.

[0113] A first connector 122 and a second connector 124 are respectively coupled to each end of the first tube body 120. In one embodiment, each end of the first tube body 120 can be machined to form a connection portion, identical to that of the first connector 122. Both the first connector 122 and the second connector 124 include a wide-diameter portion 132 and a narrow-diameter portion 130, and a plurality of grooves 126 are formed in the wide-diameter portion 132. A plurality of O-rings 128 are disposed within these grooves 126 to create a seal between the first connector 122 and the inner wall of the housing 114. The seal is crucial for preventing leakage of any working fluid flowing between the cold plates.

[0114] Each end of the first tube 120 is securely placed within the first interface 106 and the second interface 108, respectively. The first tube 120 is separated from the inner wall 116 of the housing 114 by a small gap 134. Figure 3D As shown, the spacing 134 provides the necessary clearance to accommodate angular and axial movement of the tube along the X, Y, and Z axes, while allowing movement in the longitudinal, horizontal, and vertical directions. This configuration provides flexibility during installation and ensures that the tube can be adjusted to slight misalignment, thermal expansion, or mechanical displacement during assembly without compromising the integrity of the fluid seal or causing leaks. Therefore, this design enhances durability and ease of maintenance in environments where precise alignment can be challenging.

[0115] Figure 3A This is a side view of the cold plate connected to the tube, showing that the tube can move and shift along the Z-axis. Figure 3B This is a plan view of the liquid cooling system, showing that the tube can move and shift along the Y-axis. Figure 3C This is a side view of the interface, showing that there is an appropriate distance between the tube and the inner wall of the housing, allowing the tube to move and shift at an angle. Figure 3D This is a side view of the cold plate connected to the tube, showing that the tube can move and shift along the X-axis.

[0116] See Figure 3A The first cold plate 102 and the second cold plate 104 are located at different heights along the Z-axis. Figure 3A The above figure shows that the position of the first cold plate 102 along the Z-axis is higher than the position of the second cold plate 104 along the Z-axis, while Figure 3A The figure below shows that the first cold plate 102 is positioned lower along the Z-axis than the second cold plate 104. The design of the first tube 120 allows for vertical movement and Z-axis displacement, enabling it to adapt to the height difference between the two cold plates. This feature provides assembly flexibility, ensuring that the tube can adapt to changes in the relative positions of the cold plates without stressing the connection or damaging the fluid seal, maintaining a reliable and leak-proof system even in the event of misalignment.

[0117] See Figure 3BThe first cold plate 102 and the second cold plate 104 are not aligned along the Y-axis. Figure 3B The right figure shows that the first cold plate 102 is positioned further forward along the Y-axis than the second cold plate 104 along the Y-axis. Figure 3B The left figure shows the second cold plate 104 positioned further forward along the Y-axis than the first cold plate 102 along the Y-axis. The design of the first tube 120 allows for horizontal movement and displacement along the Y-axis. This design flexibility ensures that the tube can accommodate positional differences between the cold plates without applying excessive stress to the connection. Therefore, even when the cold plates are not perfectly aligned, the integrity of fluid flow is maintained and leakage is prevented.

[0118] See Figure 3C The first cold plate 102 and the second cold plate 104 can be separated along the X-axis at different distances. Figure 3C The figure above shows that the distance between the first cold plate 102 and the second cold plate 104 is greater than Figure 3C The distance between the first cold plate 102 and the second cold plate 104 in the figure below is, Figure 3C In the figure below, the first cold plate 102 and the second cold plate 104 are positioned relatively close to each other. Since the first tube 120 can move and shift along the X-axis, the spacing between the first cold plate 102 and the second cold plate 104 is allowed to vary. The variation in spacing in the X-axis direction highlights the flexibility of the assembly design, allowing the cold plates to be installed at different spacings without affecting the function of the system.

[0119] See Figure 3D Because the spacing 134 provides adequate clearance for the movement of the first tube 120, the first tube 120 is designed to allow angular movement and displacement. The spacing 134 provides the necessary clearance between the outer surface of the first tube 120 and the inner wall of the housing 114. The clearance provided by the spacing 134 allows the first tube 120 to rotate within a certain range of motion, covering angular misalignment or movement in any direction, whether along the X, Y, or Z axis. This capability is crucial in situations where the assembly is subjected to mechanical stress, vibration, or thermal expansion, ensuring that the tubes remain securely connected without compromising the integrity of the fluid seal. This design reduces the risk of joint wear and maintains a robust connection even under angular displacement or movement in multiple planes, thereby preventing potential leaks.

[0120] Figure 4A A perspective view showing a clamping system and a groove for fixing a tube body according to an embodiment of the present invention is shown. Figure 4B A cross-sectional view is shown of a clamping system and a groove for fixing a tube body according to an embodiment of the present invention.

[0121] See Figure 4A and Figure 4BA first groove 140 and a second groove 142 are formed on opposite sidewalls of housing 114 to further secure the tube. Each of the first groove 140 and second groove 142 has a portion 144 extending to the top surface 146 of housing 114. A clamping member 148 is placed in the first groove 140 and second groove 142 to lock the first connector 122. The first groove 140 and second groove 142 are designed to provide stability and prevent unnecessary movement of the first tube 120 during operation. Both the first groove 140 and second groove 142 extend vertically from the bottom of opposite sidewalls of housing 114 to the top surface 146 of housing 114 to ensure a continuous and robust engagement with the locking mechanism. To securely lock the first connector 122 within housing 114, the clamping member 148 has a first leg 150 and a second leg 152. The first leg 150 and the second leg 152 are respectively placed in the first recess 140 and the second recess 142. This clamping member 148 spans the distance between the first recess 140 and the second recess 142 to provide a secure mechanical grip on the first connector 122. The second connector 124, which is locked to the housing 108, is handled in the same way.

[0122] See Figure 4B The first leg 150 and the second leg 152 of the clamping member 148 are connected by a bridging section 154. The first leg 150 and the second leg 152 of the clamping member 148 abut against the first connector 122 and a neck 156. The neck 156 is located above the cavity 118 of the housing 114 and is defined by the first recess 140, the second recess 142, and the cavity 118. The neck 156 prevents the clamping member 148 from springing out. In one embodiment, the bridging section 154 of the clamping member 148 is located above and separate from the neck 156, but the embodiment is not limited thereto. In another embodiment, the bridging section 154 of the clamping member 148 abuts against the neck 156. Even if the connector may be subjected to mechanical stress, thermal expansion, or vibration during assembly, the design of the clamping member 148 ensures that the connector maintains a fixed position. In addition to securely locking the first connector 122, the clamp 148 also allows for easy disassembly or adjustment for maintenance purposes, ensuring a secure connection and ease of use.

[0123] Figure 5A A perspective view showing a clamping system and a groove for fixing a tube body according to another embodiment of the present invention is shown. Figure 5B A cross-sectional view is shown of a clamping system and a groove for fixing a tube body according to another embodiment of the present invention.

[0124] See Figure 5AA third groove 158 is located above the neck 156 and is integrally formed with the first groove 140 and the second groove 140 to create a continuous and unified rectangular groove structure. A tool slot 160 is precisely aligned to intersect with the third groove 158 to facilitate the insertion of a tool to remove the clamp 148. The first leg 150 and the second leg 150 of the clamp 148 are respectively placed in the first groove 140 and the second groove 142.

[0125] See Figure 5B The first leg 150 and the second leg 150 of the clamping member 148 abut tightly against the first connector 122 and the neck 156. The bridging section 154 of the clamping member 148 abuts tightly against the neck 156 and is concealed by the third groove 158. The third groove 158 conceals the bridging section 154 of the clamping member 148 to prevent accidental removal of the clamping member 148.

[0126] Figure 6A A perspective view of a liquid cooling assembly according to another embodiment of the present invention is shown. Figure 6B The diagram shows a cross-sectional view of the connected interfaces, joints, barbs, and pipe body.

[0127] The liquid cooling component 100A in this embodiment and Figure 1 The liquid cooling component 100 is similar, therefore only the differences will be described; the similarities will not be repeated. See [link / reference]. Figure 6A According to one embodiment of the present invention, the first interface 206 and the second interface 208 are connected by a first flexible tube 220. The first tube 220 is made of an elastic and thermally stable material such as silicone or rubber, which allows for easier placement of the tube between the cold plates. The flexible tube 220 provides fluid communication between the first interface 206 and the second interface 208.

[0128] See Figure 6B A first barb 270 is coupled to a first end 266 of a first annular ring 268, and a second barb 272 is coupled to a first end 262 of a second annular ring 260. The first barb 270 and the second barb 272 are opposite to each other and separated, and are connected by a second hose 280, allowing fluid communication between them. A first connector 222 is connected to a second end 264 of the first annular ring 268, and a second connector 224 is connected to a second end 258 of the second annular ring 260. Furthermore, the first ends of the first annular ring 268 and the second annular ring 260 are respectively coupled to opposite ends of the first hose 220. In some applications, the barbs create a robust and durable connection that can withstand pressure fluctuations within the fluid system to ensure consistent and efficient fluid transfer. Moreover, the hose's high flexibility allows the liquid-cooled assembly to be adapted to movement or vibration without compromising the integrity of the fluid connection. This is particularly useful in dynamic environments where rigid tubing may fail or disconnect.

[0129] Figure 7A A perspective view of a liquid cooling assembly disposed in an electronic device according to another embodiment of the present invention is shown. Figure 7B A perspective view of a liquid cooling assembly not disposed in an electronic device, according to another embodiment of the present invention, is shown.

[0130] The liquid cooling component 100B in this embodiment and Figure 1 The liquid cooling component 100 is similar, therefore only the differences will be described; the similarities will not be repeated. See [link / reference]. Figure 7A The liquid cooling assembly 100B is extended to accommodate multiple cold plates arranged in series on the motherboard 300, which is located in electronic devices such as servers with multiple CPUs or GPUs.

[0131] The liquid cooling assembly 100B includes at least two first cold plates 302 and at least two second cold plates 304. These first cold plates 302 and second cold plates 304 are arranged alternately on the main board 300. Each of the first cold plates 302 and second cold plates 304 is thermally coupled to a corresponding heat source. A first interface 306 of the first cold plate 302 and a second interface 308 of the second cold plate 304 allow working fluid to circulate between the cold plates to provide effective thermal management for the entire device.

[0132] In one embodiment, the third port 310 of the first cold plate 302 and the fourth port 312 of the second cold plate 304 connect the cooling system to an external heat exchanger via pipes and manifolds. Working fluid flows through the first cold plate 302 and the second cold plate 304 to absorb heat, and is then guided to the external cooling system through the third port 310 and the fourth port 312. The external cooling system may include a radiator or heat exchanger installed outside the device.

[0133] In one embodiment, the liquid cooling assembly 100B further includes at least two first pipes 314 and at least two second pipes 316. A first internal manifold 318 is disposed on the first inner wall 322 of the electronic device 380. The first internal manifold 318 is in fluid communication with the second cold plate 304 through the first pipes 314. A second internal manifold 320 is disposed on the second inner wall 324 of the electronic device 380. The second internal manifold 320 is in fluid communication with the two first cold plates 302 through the second pipes 316.

[0134] In one embodiment, the first conduit 314 and the second conduit 316 are hollow metal tubes for durability and high pressure resistance, but the embodiments are not limited thereto. In another embodiment, the first conduit 314 and the second conduit 316 are made of an elastic material, such as a flexible hose assembly, to meet the requirement of higher elasticity. For the first conduit 314 and the second conduit 316 made of an elastic material, each first conduit 314 includes a pair of third barbs (not shown). This pair of third barbs is respectively connected to the fourth interface and the first internal manifold. Similarly, each second conduit 316 includes a pair of fourth barbs (not shown). This pair of fourth barbs is respectively connected to the third interface and the second internal manifold.

[0135] See Figure 7B A third pipe body 332 connects the first internal manifold 318 to a third connector 336, forming a robust and fluid-tight passage for exchanging working fluid with an external system. Similarly, a fourth pipe body 334 connects the second internal manifold 320 to a fourth connector 338, thereby allowing effective external fluid exchange. This configuration ensures reliable transmission between the internal manifold and the external environment.

[0136] Figure 8A A perspective view showing a clamping system and a groove for fixing a tube body according to another embodiment of the present invention is shown. Figure 8B A cross-sectional view showing a clamping system according to another embodiment of the present invention and a groove for fixing the tube body in the longitudinal direction is shown. Figure 8C A perspective view of a clamping system and a groove for fixing a tube body, according to another embodiment of the present invention, is shown, wherein a portion of the housing of the interface is removed. Figure 8D A cross-sectional view showing a clamping system according to another embodiment of the present invention and a groove for fixing the tube body in the lateral direction is shown.

[0137] In one embodiment, the housing 414 of the interface is circular. See also... Figure 8A The housing 414 of the first interface 406 is circular. The circular shape of the housing enhances structural integrity and uniform stress distribution, reducing potential weak points, while ensuring the tube's stability. A circular groove 440 is precisely formed in the sidewall of the housing 414 to create a continuous and smooth surface for engagement. A tool groove 460 is precisely aligned to intersect with the circular groove 440 to facilitate tool insertion and removal.

[0138] See Figure 8B A first annular ring 468 has a first end 466 and a second end 464. The first end 466 and the second end 464 are respectively coupled to a first barb 470 and a first connector 422. A clamping member 448 is disposed in a circular groove 440 to fix the first connector 422. Figure 8BAs shown in the figure below, the first barb 470 can move and shift along the X-axis, which extends longitudinally along the length of the first tube body. Furthermore, the first barb 470 can move and shift circumferentially and axially along the Y-axis, which extends horizontally and is perpendicular to the X-axis. Alternatively, the first barb 470 can move and shift circumferentially and axially along the Z-axis, which extends vertically and is perpendicular to both the X and Y axes. This multi-axis movement allows for flexibility in positioning and alignment, enhancing the adaptability of the joint during installation.

[0139] See Figure 8C The clamping element 448 is securely disposed within the circular groove 440 to lock the first connector 422. See also... Figure 8D The first leg 450 and the second leg 452 of the clamping member 448 abut tightly against the first connector 422 and the neck 456 defined by the circular groove 440 and the cavity 418. The bridging section 454 of the clamping member 448 abuts tightly against the neck 456 and is concealed by the circular groove 440. The circular groove 440 conceals the bridging section 454 of the clamping member 448 to prevent accidental removal of the clamping member 448. The circular groove 440 ensures that any force applied to the clamping member 448 and the first connector 422 is evenly distributed circumferentially to reduce the risk of localized stress that could cause damage or malfunction.

[0140] Therefore, the embodiments disclosed herein are well-suited to achieving the mentioned and inherent purposes and advantages. The specific embodiments disclosed above are merely illustrative, as they can be modified and implemented in different but equivalent ways. This will be apparent to those skilled in the art who will benefit from the teachings herein. Furthermore, the details of the configurations or designs shown herein are not intended to be limiting, except as described in the following claims. Therefore, the specific illustrative embodiments disclosed above are obviously subject to change, combination, or modification, and all such changes are considered to be within the scope and spirit of this invention. Of course, the disclosed embodiments are merely exemplary embodiments, and various modifications can be made without departing from the spirit and scope of this invention. Moreover, it should be understood that the various forms of embodiments are not mutually exclusive and can be arbitrarily combined by those skilled in the art according to design choices.

[0141] The embodiments disclosed herein may be suitably practiced in the absence of any elements not specifically disclosed and / or any optional elements disclosed herein. While compositions and methods are described by way of “comprising,” “including,” or “containing” various components or steps, compositions and methods may also be described as “substantially composed of various components or steps” or “composed of various components or steps.” All figures and ranges disclosed above may vary. Whenever a numerical range with a lower and upper limit is disclosed, any figure and any range falling within this range is specifically disclosed. In particular, each numerical range disclosed herein (in the form of “from about a to about b,” or similarly “from about a to b,” or similarly “from about ab”) should be understood to list each figure and range contained within a broader range of values. Furthermore, unless the patentee expressly and clearly defines otherwise, the terms used in the claims have their simple, ordinary meaning. Additionally, where “a” is used in the claims, it is defined herein as indicating one or more of the elements introduced therein.

Claims

1. A liquid-cooled assembly, comprising: For use in an electronic device, the liquid cooling assembly comprises: a first cold plate and a second cold plate, each thermally coupled to a heat source and separated from each other; a first port and a second port, the first port being located at the first cold plate, the second port being located at the second cold plate, the first port and the second port for circulating working fluid between the first cold plate and the second cold plate; a third port and a fourth port, the third port being located at the first cold plate, the fourth port being located at the second cold plate, the third port and the fourth port for circulating working fluid between the first cold plate, the second cold plate and an external heat exchanger; an inner wall in a housing of each port, surrounding a cavity; a first tube in fluid communication with the first port and the second port; and a first fitting and a second fitting, each having a wide diameter portion and a narrow diameter portion; wherein: the two narrow diameter portions are coupled to opposite ends of the first tube and are respectively placed in the first port and the second port; each of the two wide diameter portions is placed in the first port and the second port and comprises grooves provided with O-rings that tightly abut against the inner wall of the housing; and each end of the first tube has a portion placed in the housing, the portion being spaced apart from the inner wall of the housing by a distance.

2. The liquid-cooling assembly of claim 1, wherein, The first tube is a metal hollow tube.

3. The liquid-cooling assembly of claim 1, wherein, A first recess and a second recess are formed in opposite side walls of the housing, each of the first recess and the second recess has a portion extending to a top surface of the housing, the first recess and the second recess are for receiving a clamping member.

4. The liquid-cooling assembly of claim 3, wherein, The first recess, the second recess and the cavity define a neck portion above the cavity.

5. The liquid-cooling assembly of claim 4, wherein, The clamping member has a first leg portion and a second leg portion, the first leg portion and the second leg portion are respectively arranged in the first recess and the second recess, and the first leg portion and the second leg portion are connected by a bridge portion above the neck portion.

6. The liquid-cooling assembly of claim 5, wherein, Further comprising: a third recess formed above the neck portion; and a tool slot intersecting the third recess, the third recess connecting the first recess and the second recess to form a unified slot, and the tool slot is for removing the clamping member. The bridge portion of the clamping member is hidden by the third recess and contacts the neck portion.

7. The liquid-cooling assembly of claim 6, wherein, The first port, the second port and the unified slot are rectangular.

8. The liquid-cooling assembly of claim 6, wherein, The first port, the second port and the unified slot are circular.

9. The liquid-cooling assembly of claim 6, wherein, The first tube is for angular and axial movement and displacement along an X-axis, a Y-axis and a Z-axis, the X-axis extends longitudinally along the length of the first tube, the Y-axis extends horizontally and is perpendicular to the X-axis, and the Z-axis extends vertically and is perpendicular to the X-axis and the Y-axis.

10. The liquid-cooling assembly of claim 1, wherein, For use in an electronic device, the liquid cooling assembly comprises:

11. A liquid cooling assembly, characterized by, at least two first cold plates and at least two second cold plates, interleavedly arranged on a mainboard and thermally coupled to a heat source; at least two first ports and at least two second ports, the first ports being respectively located at the first cold plates, the second ports being respectively located at the second cold plates, the first ports and the second ports for circulating working fluid between the first cold plates and the second cold plates; ​ at least two third interfaces and at least two fourth interfaces, the third interfaces are respectively located on the first cold plates, the fourth interfaces are respectively located on the second cold plates, the third interfaces are used for circulating flow of working fluid between the first cold plates and a second inner manifold, the fourth interfaces are used for circulating flow of working fluid between the second cold plates and a first inner manifold; an inner wall in a housing of each interface, surrounding a cavity; at least two first tubes, respectively in fluid communication with the first interfaces and the second interfaces; and at least two first joints and at least two second joints, each having a wide diameter portion and a narrow diameter portion; wherein: the narrow diameter portions are respectively coupled to opposite ends of the first tubes and are respectively placed in the first interfaces and the second interfaces; each of the wide diameter portions is placed in the first interfaces and the second interfaces and includes grooves provided with O-rings that tightly abut against the inner wall of the housing; and each end of the first tubes has a portion placed in the housing, the portion being spaced apart from the inner wall of the housing by a distance.

12. The liquid-cooling assembly of claim 11, wherein, each of the at least two first tubes is a metal hollow tube.

13. The liquid-cooling assembly of claim 11, wherein, a first recess and a second recess are formed in opposite side walls of the housing of the first interfaces and the second interfaces, the first recess and the second recess each have a portion extending to a top surface of the housing, the first recess and the second recess are used to receive a clamping member.

14. The liquid-cooling assembly of claim 13, wherein, the first recess, the second recess and the cavity define a neck portion above the cavity.

15. The liquid-cooling assembly of claim 14, wherein, the clamping member has a first leg portion and a second leg portion, the first leg portion and the second leg portion are respectively disposed in the first recess and the second recess, and the first leg portion and the second leg portion are connected by a bridge portion above the neck portion.

16. The liquid-cooling assembly of claim 15, wherein, further comprising: a third recess formed above the neck portion; and a tool groove intersecting the third recess, the third recess is connected to the first recess and the second recess to form a unified groove, and the tool groove is used for removing the clamping member. the bridge portion of the clamping member is hidden in the third recess and abuts against the neck portion.

17. The liquid-cooling assembly of claim 16, wherein, at least one of the first interfaces and the second interfaces and the unified groove are rectangular.

18. The liquid-cooling assembly of claim 16, wherein, at least one of the first interfaces and the second interfaces and the unified groove are circular.

19. The liquid-cooling assembly of claim 16, wherein, the first tube is used for angular and axial movement and displacement along an X-axis, a Y-axis and a Z-axis, the X-axis extends longitudinally along the length of the first tube, the Y-axis extends horizontally and is perpendicular to the X-axis, and the Z-axis extends vertically and is perpendicular to the X-axis and the Y-axis.

20. The liquid-cooling assembly of claim 11, wherein, further comprising:

21. The liquid-cooling assembly of claim 11, wherein, at least two first pipes; at least two second pipes; a first inner manifold disposed on a first inner side wall of the electronic device and in fluid communication with the second cold plates through the first pipes; and a second inner manifold disposed on a second inner side wall of the electronic device and in fluid communication with the first cold plates through the second pipes. the first pipes and the second pipes are metal hollow tubes.

22. The liquid-cooling assembly of claim 21, wherein, the first pipes and the second pipes are flexible tubes.

23. The liquid-cooling assembly of claim 21, wherein, ​ 24. The liquid-cooling assembly of claim 23, wherein, Each of the first pipes includes a pair of third barbs connected to the fourth interface and the first inner manifold, respectively.

25. The liquid-cooling assembly of claim 23, wherein, Each of the first pipes includes a pair of fourth barbs connected to the third interface and the second inner manifold, respectively.