Immersion cooling oil tank
By using a liquid-immersion cooling oil bath design, the liquid directly contacts the server components for cooling, solving the problem of low efficiency in air cooling and achieving a more efficient heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN LIANLI LIQUID COOLING EQUIPMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, air cooling is not very effective at dissipating heat from large servers and is unable to effectively remove heat from core components such as the CPU and GPU.
The system employs a liquid-immersion cooling oil tank, through which cooling oil is directly injected into the server's liquid immersion chamber via a pipeline structure, contacting the core components for cooling. By utilizing the liquid to fill the gaps between components and providing transition flow through an oil distribution structure and transition chamber, uniform distribution of the cooling medium and direct contact cooling are achieved.
It increases the contact area and cooling efficiency between the cooling medium and server components, ensuring uniform contact of all components with the cooling oil and significantly improving heat dissipation.
Smart Images

Figure CN224536464U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of oil cooling tank technology, and particularly relates to a liquid immersion cooling oil cooling tank. Background Technology
[0002] Servers generate a significant amount of heat during operation, with core components such as the CPU and GPU producing substantial amounts of heat under high-intensity computation. Current technologies utilize airflow to dissipate this heat, but air cooling is less effective for large servers, impacting overall heat dissipation efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a liquid-immersed cooling oil cooler, which aims to solve the technical problems in the prior art.
[0004] To achieve the above objectives, the present invention provides a liquid-immersed cooling oil cooler, comprising a hollow body, a pipeline structure, an oil distribution structure, and an oil outlet panel. The oil outlet panel is located within the inner cavity of the hollow body and can partition into a liquid-immersed cavity and a transition cavity arranged vertically. The oil distribution structure is located on the centerline of the transition cavity and has an oil passage groove along the length of the transition cavity. The wall of the oil passage groove has a plurality of first oil outlet holes facing the transition cavity. The pipeline structure has an oil inlet and an oil outlet. The oil inlet is connected to an external oil supply device. The oil outlet penetrates the bottom wall of the transition cavity and its end is located within the oil passage groove. The oil outlet panel has a plurality of second oil outlet holes. The liquid-immersed cavity communicates with the transition cavity through the plurality of second oil outlet holes.
[0005] Optionally, it also includes an overhead structure, the bottom of which is connected to the bottom wall of the transition cavity, the top of which is connected to the bottom surface of the oil outlet panel, and the gap between the oil outlet panel and the oil distribution structure is formed.
[0006] Optionally, the pipeline structure is a tee pipe, including one oil inlet and two oil outlets. The overhead structure includes a first support bar corresponding to the edge of the transition cavity and a second support bar located on the centerline of the transition cavity. The second support bar can divide the transition cavity into two independent first cavities and second cavities. Two oil distribution structures are provided, one of which is located on the centerline of the first cavity and the other is located on the centerline of the second cavity. The two oil outlets are arranged opposite to each other on both sides of the second support bar to provide cooling oil to the first cavity and the second cavity, respectively.
[0007] Optionally, two pipeline structures are provided, and the two pipeline structures are arranged at intervals along the length direction of the oil distribution structure, and the two oil distribution structures are connected to the two oil outlets respectively.
[0008] Optionally, the longitudinal section of the oil distribution structure is U-shaped and has three oil outlet planes, each of which has a plurality of first oil outlet holes.
[0009] Optionally, a plurality of the first oil outlet holes are arranged in a straight line along the length direction of the oil distribution structure.
[0010] Optionally, the diameter of a plurality of the first oil outlet holes gradually decreases from the oil outlet port to the farthest point.
[0011] Optionally, a first sealing strip is laid on the top of the first support strip, and a second sealing strip is laid on the top of the second support strip, with the top sides of the first sealing strip and the second sealing strip respectively abutting against the oil outlet panel.
[0012] The above-mentioned one or more technical solutions in the liquid-immersed cooling oil tank provided in this utility model embodiment have at least one of the following technical effects: The server is installed in the inner cavity of the hollow body, and the cooling oil enters the liquid immersion cavity through the pipeline structure to directly contact the server components to achieve the purpose of cooling. Compared with the prior art, this application replaces the cooling medium with a flowable liquid, and uses the liquid to fill the gap between the components and achieve cooling through direct contact, thereby increasing the contact area between the cooling medium and the server components, which is beneficial to improving heat dissipation efficiency. On the other hand, when the oil is introduced, the oil distribution structure and transition cavity provide transition flow for the coolant. An oil distribution structure is added in the length direction between a single oil inlet and a multi-hole oil outlet panel. The oil introduction method is single-point oil inlet, line oil outlet, and plane oil outlet. The cooling oil enters the liquid immersion cavity in sequence through points, lines, and surfaces, which is beneficial to improve the uniformity of the liquid level rise and ensure that each component of the server can contact the cooling oil, further improving the heat dissipation effect. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 The top side view of the structural schematic diagram of the liquid immersion cooling oil cooler provided in the embodiment of this utility model.
[0015] Figure 2 The bottom view of the structural schematic diagram of the liquid immersion cooling oil cooler provided in the embodiment of this utility model.
[0016] Figure 3The top side view of the exploded view of the liquid immersion cooling oil cooler provided in the embodiment of this utility model.
[0017] Figure 4 The bottom side view of the exploded view of the liquid immersion cooling oil cooler provided in the embodiment of this utility model.
[0018] The following are the labeling elements in the figure:
[0019] 1—Hollow body; 11—Liquid immersion cavity; 12—Transition cavity
[0020] 121—First cavity 122—Second cavity
[0021] 2—Pipeline Structure 21—Oil Inlet 22—Oil Outlet
[0022] 3—Oil distribution structure; 31—Oil channel; 32—First oil outlet.
[0023] 4—Oil outlet panel 41—Second oil outlet hole
[0024] 5—Overhead structure; 51—First support bar; 52—Second support bar. Detailed Implementation
[0025] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0026] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0029] In one embodiment of this utility model, such as Figures 1-4 As shown, a liquid-immersed cooling oil cooler is provided, including a hollow body 1, a pipeline structure 2, an oil distribution structure 3, and an oil outlet panel 4. The oil outlet panel 4 is located in the inner cavity of the hollow body 1 and can partition a liquid immersion cavity 11 and a transition cavity 12 arranged vertically. The oil distribution structure 3 is located on the centerline of the transition cavity 12 and has an oil passage groove 31 along the length of the transition cavity 12. The wall of the oil passage groove 31 has a plurality of first oil outlet holes 32 facing the transition cavity 12. The pipeline structure 2 has an oil inlet 21 and an oil outlet 22. The oil inlet 21 is connected to an external oil supply device. The oil outlet 22 penetrates the bottom wall of the transition cavity 12 and its end is located in the oil passage groove 31. The oil outlet panel 4 has a plurality of second oil outlet holes 41. The liquid immersion cavity 11 communicates with the transition cavity 12 through the plurality of second oil outlet holes 41. The server is installed inside the hollow body 1. Cooling oil enters the liquid immersion chamber 11 through the pipeline structure 2 and directly contacts the server components to achieve cooling. Compared with the prior art, this application replaces the cooling medium with a flowable liquid. It uses the liquid to fill the gaps between the components and achieves cooling through direct contact, thereby increasing the contact area between the cooling medium and the server components, which is beneficial to improving heat dissipation efficiency. On the other hand, when the oil is introduced, the oil distribution structure 3 and the transition chamber 12 provide transition flow for the coolant. An oil distribution structure 3 is added in the length direction between the single oil inlet 21 and the multi-hole oil outlet panel 4. The oil is introduced in the form of single-point oil inlet, line oil outlet, and plane oil outlet. The cooling oil enters the liquid immersion chamber 11 in sequence through points, lines, and surfaces, which is beneficial to improve the uniformity of the liquid level rise and ensure that each component of the server can contact the cooling oil, further improving the heat dissipation effect. Specifically, the hollow body 1 is a rectangular shell with a positioning opening. The pipeline structure is connected to an external oil supply device (not shown in the figure) via an oil pump. The oil supply device includes a heat exchange device and a cooling tower. After absorbing heat, the cooling oil in the liquid immersion chamber 11 is first cooled by the heat exchange device, then temporarily stored in the cooling tower, and finally enters the liquid immersion chamber 11 again via the oil pump to achieve the purpose of cooling circulation.
[0030] In one embodiment of this utility model, such as Figure 3 As shown, it also includes an overhead structure 5. The bottom of the overhead structure 5 is connected to the bottom wall of the transition cavity 12, and the top is connected to the bottom surface of the oil outlet panel 4, which allows the oil outlet panel 4 and the oil distribution structure 3 to form a gap. By using the overhead structure 5 to increase the proportion of the transition cavity 12 in the hollow body 1 within a unit volume, and by connecting the cavities located on both sides of the oil distribution structure 3, it is beneficial to improve the uniformity of oil output.
[0031] In one embodiment of this utility model, such as Figure 4 As shown, the pipeline structure 2 is a three-way pipe, including one oil inlet 21 and two oil outlets 22. The overhead structure 5 includes a first support strip 51 corresponding to the edge of the transition cavity 12 and a second support strip 52 located on the centerline of the transition cavity 12. The second support strip 52 can divide the transition cavity 12 into two independent first cavities 121 and second cavities 122. There are two oil distribution structures 3, one located on the centerline of the first cavity 121 and the other located on the centerline of the second cavity 122. The two oil outlets 22 are arranged opposite to each other on both sides of the second support strip 52, providing cooling oil to the first cavity 121 and the second cavity 122 respectively. Specifically, by using the double oil outlets 22 arranged in the width direction of the hollow body 1, the number of oil inlet points is increased, further improving the uniformity of oil intake.
[0032] In one embodiment of this utility model, such as Figure 4 As shown, there are two pipeline structures 2, which are arranged at intervals along the length of the oil distribution structure 3. The two oil distribution structures 3 are connected to the two oil outlets 22 respectively. Specifically, the oil pump includes an input pump and an output pump. One pipeline structure 2 is connected to the cooling tower through the input pump, and the other pipeline structure 2 is connected to the heat exchange device through the output pump to realize the circulation supply of cooling oil.
[0033] In one embodiment of this utility model, such as Figure 3 As shown, the oil distribution structure 3 has a U-shaped longitudinal section and three oil outlet planes, each of which has a plurality of first oil outlet holes 32. Specifically, the oil distribution structure 3 is placed upside down on the bottom wall of the transition cavity 12 and its open end is fixed by welding, thereby improving oil outlet efficiency by utilizing the three oil outlet planes.
[0034] In one embodiment of this utility model, such as Figure 3As shown, a plurality of first oil outlet holes 32 are arranged in a straight line along the length of the oil distribution structure 3. The diameter of each of the first oil outlet holes 32 gradually decreases from the oil outlet port 22 to the nearest point. Specifically, a single oil distribution structure 3 is divided into four equal segments along its length, each with three equal division points. Two oil outlet ports 22 are arranged symmetrically about the central division point. The diameter of the first oil outlet holes 32 on the two equidistant oil distribution structures 3 gradually decreases from the oil outlet port 22 to the nearest point, thereby regulating the hydraulic pressure by increasing the oil pressure further away from the oil outlet port 22 through a smaller diameter.
[0035] In one embodiment of this utility model, such as Figure 3 As shown, a first sealing strip is laid on the top of the first support strip 51, and a second sealing strip is laid on the top of the second support strip 52. The top sides of the first and second sealing strips respectively abut against the oil outlet panel 4. Specifically, the edge and centerline of the oil outlet panel 4 are fixedly connected to the first support strip 51 and the second support strip 52 by screws and nuts. The first and second sealing strips are respectively provided with through holes for screws to pass through. By using the above technical solution, the sealing performance of the transition cavity 12 is improved.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A liquid-immersed cooling oil cooling tank, characterized in that: The device includes a hollow body, a pipeline structure, an oil distribution structure, and an oil outlet panel. The oil outlet panel is located inside the hollow body and can partition into a liquid immersion chamber and a transition chamber arranged vertically. The oil distribution structure is located on the centerline of the transition chamber and has an oil passage groove along the length of the transition chamber. The wall of the oil passage groove has several first oil outlet holes facing the transition chamber. The pipeline structure has an oil inlet and an oil outlet. The oil inlet is connected to an external oil supply device. The oil outlet penetrates the bottom wall of the transition chamber and its end is located in the oil passage groove. The oil outlet panel has several second oil outlet holes. The liquid immersion chamber communicates with the transition chamber through the several second oil outlet holes.
2. The liquid-immersed cooling oil cooler according to claim 1, characterized in that: It also includes an overhead structure, the bottom of which is connected to the bottom wall of the transition cavity, and the top of which is connected to the bottom surface of the oil outlet panel, enabling the oil outlet panel and the oil distribution structure to form a gap.
3. The liquid-immersed cooling oil cooling tank according to claim 2, characterized in that: The pipeline structure is a tee pipe, including one oil inlet and two oil outlets. The overhead structure includes a first support bar corresponding to the edge of the transition cavity and a second support bar located on the centerline of the transition cavity. The second support bar can divide the transition cavity into two independent first cavities and second cavities. There are two oil distribution structures, one of which is located on the centerline of the first cavity and the other is located on the centerline of the second cavity. The two oil outlets are arranged opposite to each other on both sides of the second support bar to provide cooling oil to the first cavity and the second cavity, respectively.
4. The liquid-immersed cooling oil cooling tank according to claim 3, characterized in that: The pipeline structure is provided in two parts, which are arranged at intervals along the length of the oil distribution structure, and the two oil distribution structures are connected to the two oil outlets respectively.
5. The liquid-immersed cooling oil cooler according to claim 4, characterized in that: The longitudinal section of the oil distribution structure is U-shaped and has three oil outlet planes, each of which has a number of first oil outlet holes.
6. The liquid-immersed cooling oil cooler according to claim 5, characterized in that: A plurality of the first oil outlet holes are arranged in a straight line along the length of the oil distribution structure.
7. The liquid-immersed cooling oil cooling tank according to claim 6, characterized in that: The diameter of several first oil outlet holes gradually decreases from the oil outlet pipe opening to the farthest point.
8. The liquid-immersed cooling oil cooler according to claim 3, characterized in that: A first sealing strip is laid on the top of the first support strip, and a second sealing strip is laid on the top of the second support strip. The top sides of the first sealing strip and the second sealing strip respectively abut against the oil outlet panel.