Immersed liquid cooling system

Abstract

The utility model provides an immersed liquid cooling system, and relates to the technical field of heat exchange. The immersed liquid cooling system comprises a power element, a heat exchanger, a liquid cooling tank and a liquid discharge pipe. The liquid cooling tank is provided with a liquid inlet and a liquid outlet. The liquid discharging pipe is provided with a first connecting port, a second connecting port and a third connecting port, the first connecting port is located above the second connecting port, and the third connecting port is located below the second connecting port. The second connecting port is connected to the liquid outlet, and the first connecting port is configured to communicate with the external environment. The third connector, the power element, the heat exchanger and the liquid inlet are sequentially connected through pipelines. Bubbles in a heat exchange medium can be better discharged, so that the heat exchange efficiency of the heat exchange medium is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to an immersion liquid cooling system. Background Art

[0002] Immersion liquid cooling is a highly efficient heat dissipation technology that fully or partially immerses electronic equipment in coolant, utilizing the high thermal conductivity and large specific surface area of the liquid to absorb heat.

[0003] Immersion liquid cooling systems typically fully or partially immerse servers, data centers, and other electronic equipment in a liquid cooling tank filled with heat transfer media. Because servers and other electronic equipment require enclosure and maintenance, the tanks are often not sealed or even left open. This prevents the heat transfer media from circulating in a vacuum environment. Temperature fluctuations and pressure fluctuations during circulation can cause bubbles to form within the medium. These bubbles can hinder the flow of the heat transfer media, reducing heat dissipation efficiency and shortening its service life.

[0004] Therefore, how to remove bubbles from the heat exchange medium has become a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] The purpose of the utility model is to provide an immersion liquid cooling system, which can better discharge bubbles in a heat exchange medium, thereby improving the heat exchange efficiency of the heat exchange medium.

[0006] The embodiment of the present utility model is achieved as follows:

[0007] The utility model provides an immersion liquid cooling system, comprising a power element, a heat exchanger, a liquid cooling tank and a drain pipe;

[0008] The liquid cooling tank has a liquid inlet and a liquid outlet;

[0009] The liquid discharge pipe has a first connection port, a second connection port and a third connection port, the second connection port is connected to the liquid outlet, and the first connection port is configured to communicate with the external environment;

[0010] The third connecting port, the power element, the heat exchanger and the liquid inlet are connected in sequence through pipelines.

[0011] In an optional embodiment, the first connection port is located above the second connection port, and the third connection port is located below the second connection port;

[0012] The immersion liquid cooling system further includes a liquid storage tank having a liquid return port and a liquid discharge port;

[0013] The third connecting port is connected to the liquid return port;

[0014] The drain port is connected to the inlet of the power element through a pipeline;

[0015] The liquid storage tank is provided with an exhaust branch pipe, which extends upward and is configured to communicate with the external environment.

[0016] In an optional embodiment, the drain pipe is further provided with a fourth connection port, and the fourth connection port is located above the second connection port;

[0017] The top end of the exhaust branch pipe is connected to the fourth connecting port.

[0018] In an optional embodiment, the first connecting port and the third connecting port are formed at both ends of the drainage pipe in the length direction, and the second connecting port and the fourth connecting port are both formed at both sides of the drainage pipe in the length direction;

[0019] The first connecting port is provided with a shielding cover.

[0020] In an optional embodiment, the liquid return port is provided on the top wall of the liquid storage tank;

[0021] A curved pipe is provided in the liquid storage tank corresponding to the liquid return port, and the end of the curved pipe extends toward one end of the length of the liquid storage tank.

[0022] In an optional embodiment, the liquid discharge port is provided on one side of the liquid storage tank, and a liquid suction pipe is provided in the liquid storage tank, one end of the liquid suction pipe is connected to the liquid discharge port, and the other end extends toward the other side of the length direction of the liquid storage tank;

[0023] The pipette is provided with a pipette hole, and the pipette hole is configured to filter bubbles.

[0024] In an optional embodiment, the liquid pipe comprises a liquid pipe main pipe and a plurality of liquid pipe branches;

[0025] The liquid suction pipe is arranged in the liquid storage tank along the length of the liquid storage tank, and one end of the liquid suction pipe is connected to the liquid discharge port, and the other end is closed;

[0026] A plurality of liquid suction branch pipes are arranged on the liquid suction main pipe at intervals along the length direction of the liquid suction main pipe, and one end of all the liquid suction branch pipes is connected to the liquid suction main pipe and the other end is closed;

[0027] A plurality of liquid suction holes are arranged on the side wall of the liquid suction branch pipe near the bottom wall of the liquid storage box.

[0028] In an optional embodiment, the immersion liquid cooling system further includes a support frame, and the liquid cooling tank is disposed above the liquid storage tank through the support frame.

[0029] In an optional embodiment, the liquid storage tank is further provided with an exhaust branch pipe;

[0030] An exhaust port is provided at one end of the liquid storage tank away from the exhaust branch pipe, one end of the exhaust branch pipe is connected to the exhaust port, and the other end of the exhaust branch pipe extends upward to the top of the liquid cooling tank and bends to extend into the interior of the liquid cooling tank.

[0031] In an optional embodiment, the immersion liquid cooling system further includes a container and a fan;

[0032] The side wall of the container is provided with an installation notch, and the top wall of the container is provided with a fixing notch;

[0033] The heat exchanger is installed in the installation notch, and the fan is installed in the fixed notch;

[0034] The power components and liquid cooling tank are both installed in the container.

[0035] The beneficial effects of the immersion liquid cooling circulation system provided by the embodiment of the utility model are:

[0036] The present application provides a first connection port, a second connection port and a third connection port for the drain pipe, and the first connection port is located above the second connection port, and the third connection port is located below the second connection port. The second connection port is connected to the liquid outlet, and the first connection port is configured to communicate with the external environment. The third connection port, the power element, the heat exchanger and the liquid inlet are connected in sequence through pipes. Since the first connection port is connected to the external environment, the pressure of the drain pipe is relatively low. In this way, the bubbles in the heat exchange medium discharged from the liquid outlet into the drain pipe rise from the high-pressure area to the low-pressure area under the action of buoyancy and float on the liquid surface of the heat exchange medium until they burst and are discharged from the first connection port, thereby improving the bubbles in the heat exchange medium in the immersion liquid cooling cycle, which affects the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of a hidden portion of a heat exchanger in an immersion liquid cooling system provided by an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the connection of the drain pipe of the immersion liquid cooling system provided in an embodiment of the present utility model;

[0040] Figure 3 A schematic diagram of the installation of a liquid storage tank, a support frame, and a liquid cooling tank of an immersion liquid cooling system provided in an embodiment of the present utility model;

[0041] Figure 4 A schematic diagram of the structure of a drain pipe of an immersion liquid cooling system provided by an embodiment of the present utility model;

[0042] Figure 5 A schematic diagram of the liquid cooling tank structure of the immersion liquid cooling system provided in an embodiment of the present utility model;

[0043] Figure 6 A schematic structural diagram of a liquid storage tank of an immersion liquid cooling system provided in an embodiment of the present utility model;

[0044] Figure 7 A schematic cross-sectional view of a liquid storage tank of an immersion liquid cooling system provided in an embodiment of the present invention;

[0045] Figure 8 A schematic cross-sectional view of the bottom wall of a liquid storage tank of an immersion liquid cooling system provided by an embodiment of the present invention;

[0046] Figure 9 for Figure 8 A in the middle is an enlarged schematic diagram;

[0047] Figure 10 This is a schematic structural diagram of the immersion liquid cooling system provided in an embodiment of the present invention within a container.

[0048] Icons: 100- immersion liquid cooling system; 111- power element; 113- heat exchanger; 115- container; 117- fan; 130- liquid cooling tank; 131- liquid inlet; 133- liquid outlet; 150- drain pipe; 151- first connection port; 153- second connection port; 154- third connection port; 155- tank body; 157- partition plate; 159- liquid cooling chamber; 161- leaching chamber; 163- fourth connection port; 165- shielding cover; 170- liquid storage tank; 171- liquid return port; 173- drain port; 175- exhaust branch pipe; 177- elbow pipe; 179- liquid suction pipe; 181- liquid suction hole; 183- liquid suction main pipe; 185- liquid suction branch pipe; 187- exhaust branch pipe; 190- support frame. DETAILED DESCRIPTION

[0049] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", not that the structure must be completely horizontal, but can be slightly tilted.

[0054] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0055] Example

[0056] Please refer to Figures 1 to 4The present invention provides an immersion liquid cooling system 100, which includes a power element 111, a heat exchanger 113, a liquid cooling tank 130 and a drain pipe 150. Electronic devices such as servers can be completely or partially immersed in the heat exchange medium in the liquid cooling tank 130. The liquid cooling tank 130 has a liquid inlet 131 and a liquid outlet 133. The drain pipe 150 has a first connection port 151, a second connection port 153 and a third connection port 154. The second connection port 153 is connected to the liquid outlet 133, and the first connection port 151 is configured to communicate with the external environment. The third connection port 154, the power element 111, the heat exchanger 113 and the liquid inlet 131 are connected in sequence through pipes to form a heat exchange medium circulation path.

[0057] In the related art, the liquid outlet 133 is directly connected to the circulation path of the heat exchange medium through a pipe. However, since the liquid cooling tank 130 is generally open and connected to the external environment to facilitate the maintenance of the servers and other electronic equipment inside, bubbles will appear in the heat exchange medium in the liquid cooling tank 130 due to temperature changes and other reasons. Such bubbles will circulate along the circulation path, thereby affecting the heat exchange effect of the heat exchange medium. Generally, the heat exchange medium uses insulating mineral oil or synthetic oil, etc., and bubbles will accelerate its emulsification, affecting its service life. In this embodiment, the drain pipe 150 is provided with a first connection port 151, a second connection port 153 and a third connection port 154, and the second connection port 153 is connected to the liquid outlet 133, and the first connection port 151 is configured to communicate with the external environment. The third connection port 154, the power element 111, the heat exchanger 113 and the liquid inlet 131 are connected in sequence through pipes. Since the first connecting port 151 is connected to the external environment, the pressure in the drain pipe 150 is relatively low. As a result, bubbles in the heat exchange medium discharged from the liquid outlet 133 into the drain pipe 150 rise from the high-pressure area to the low-pressure area under the action of buoyancy and float on the liquid surface of the heat exchange medium until they burst and are discharged from the first connecting port 151, thereby improving the bubbles in the heat exchange medium in the immersion liquid cooling cycle, which affects the heat exchange efficiency.

[0058] In this embodiment, the first connection port 151 is located above the second connection port 153, and the third connection port 154 is located below the second connection port 153. Of course, in other embodiments of the present application, the positions of the first connection port 151, the second connection port 153, and the third connection port 154 can also be adaptively adjusted according to needs.

[0059] In this embodiment, the liquid cooling tank 130 includes a tank body 155 and a partition plate 157. The partition plate 157 is arranged in the cavity of the tank body 155 and is arranged along the length direction of the tank body 155. The partition plate 157 divides the space in the tank body 155 (that is, the cavity of the tank body 155) into a liquid cooling chamber 159 and an leaching chamber 161 that are independent of each other. The liquid inlet 131 is connected to the bottom of the liquid cooling chamber 159, and the liquid outlet 133 is connected to the leaching chamber 161. The data center, processor, etc. are arranged in the liquid cooling chamber 159. The heat exchange medium of the liquid cooling chamber 159 can overflow to the leaching chamber 161 through the partition plate 157.

[0060] By overflowing, it is possible to ensure that the heat exchange medium in the liquid cooling chamber 159 where the electronic equipment is placed is sufficient, so that the heat exchange medium can immerse all or part of the electronic equipment, thereby meeting the heat exchange requirements of the electronic equipment. This can also ensure that the buoyancy of the bubbles formed by the heat exchange medium in the liquid cooling tank 130 can float on the liquid surface and overflow into the overflow tank, which can reduce the bubbles in the liquid cooling tank 130. Some of the bubbles discharged into the leaching chamber 161 will burst, and the other part will flow into the drain pipe 150 along with the heat exchange medium. During the flow in the drain pipe 150, some of them will burst, and the air can be discharged from the first outlet. However, some will still flow downstream.

[0061] Please refer to Figures 1 to 6 In this embodiment, the immersion liquid cooling system 100 further includes a liquid storage tank 170 having a liquid return port 171 and a liquid drain port 173. The third connection port is connected to the liquid return port 171. The liquid drain port 173 is connected to the inlet of the power element 111 via a pipe. The liquid storage tank 170 is provided with an exhaust branch pipe 175, which extends upward and is configured to communicate with the external environment.

[0062] In this embodiment, a liquid storage tank 170 is provided so that the heat exchange medium flowing out of the drain port 173 can flow back into the liquid storage tank 170. Bubbles in the heat exchange medium can rise to the liquid surface and burst due to the buoyancy of the heat exchange medium in the liquid storage tank 170. An exhaust branch pipe 175 is provided so that the gas generated by the bursting bubbles in the liquid storage tank 170 can be discharged from the liquid storage tank 170.

[0063] In this embodiment, the drain pipe 150 is further provided with a fourth connection port 163 , which is located above the second connection port 153 . The top end of the exhaust branch pipe 175 is connected to the fourth connection port 163 .

[0064] In this embodiment, the top end of the exhaust branch pipe 175 is connected to the fourth interface provided on the drain pipe 150, so that the droplets of the heat exchange medium in the exhaust branch pipe 175 can flow into the liquid storage tank 170 through the drain pipe 150, and the gas will be discharged from the first connection port 151 of the drain pipe 150, thereby better achieving gas-liquid separation.

[0065] Please refer to Figures 1 to 6 In this embodiment, the first connection port 151 and the third connection port 154 are formed at both ends of the drainage pipe 150 in the length direction, the second connection port 153 and the fourth connection port 163 are both formed on both sides of the drainage pipe 150 in the length direction, and the first connection port 151 is provided with a shielding cover 165.

[0066] In this embodiment, a shielding cover 165 is provided at the first connecting port 151 to prevent debris from falling into the drain pipe 150 .

[0067] Specifically, a support portion is provided at the top of the drain pipe 150, and the shielding cover 165 is provided at the top of the drain pipe 150 through the support portion and is spaced apart from the top of the drain pipe 150, so that the gas can flow out from the gap between the shielding cover 165 and the top of the drain pipe 150.

[0068] Please refer to Figure 7 In this embodiment, the liquid return port 171 is provided on the top wall of the liquid storage tank 170 . A curved pipe 177 is provided inside the liquid storage tank 170 corresponding to the liquid return port 171 , and the end of the curved pipe 177 extends toward one end of the length of the liquid storage tank 170 .

[0069] In this embodiment, an elbow 177 is provided within the liquid storage tank 170. This allows the heat exchange medium delivered from the discharge pipe 150 to be directly delivered to the heat exchange medium within the liquid storage tank 170 via the elbow 177, thereby preventing the heat exchange medium flowing from the discharge pipe 150 into the liquid storage tank 170 from directly hitting the liquid surface of the heat exchange medium within the liquid storage tank 170 and generating bubbles. The end of the elbow 177 extends toward one end of the length of the liquid storage tank 170, thereby allowing the heat exchange medium discharged from the discharge pipe 150 to mix with the heat exchange medium within the liquid storage tank 170 and allowing the heat exchange medium within the liquid storage tank 170 to flow, thereby facilitating the upward movement of bubbles in the heat exchange medium within the liquid storage tank 170.

[0070] Generally, the liquid level of the heat exchange medium in liquid storage tank 170 is higher than the level of curved pipe 177. This ensures that the end of curved pipe 177 is completely immersed in the heat exchange medium in liquid storage tank 170, thereby preventing bubbles from forming when the heat exchange medium in drain pipe 150 flows into liquid storage tank 170. Furthermore, this arrangement causes bubbles in liquid storage tank 170 to float on the liquid level of the heat exchange medium in liquid storage tank 170, making them more likely to burst. Once burst, these bubbles can be directly discharged through exhaust branch pipe 175.

[0071] Please refer to Figures 1 to 9 In this embodiment, a liquid discharge port 173 is provided on one side of the liquid storage tank 170. A liquid suction pipe 179 is provided within the liquid storage tank 170. One end of the liquid suction pipe 179 is connected to the liquid discharge port 173, and the other end extends toward the other end of the liquid storage tank 170 in the longitudinal direction. The liquid suction pipe 179 is provided with a liquid suction hole 181, which is configured to filter bubbles.

[0072] In this embodiment, a liquid suction pipe 179 is provided within the liquid storage tank 170. This allows the heat exchange medium within the liquid storage tank 170 to be drawn away by the liquid suction pipe 179 during operation of the power element 111. After cooling in the heat exchanger 113, the heat exchange medium can flow back into the liquid cooling tank 130 for further cooling. Liquid suction holes 181 are also provided within the liquid suction pipe 179. These holes filter the heat exchange medium and trap air bubbles outside, preventing them from entering the circulation path through the liquid suction pipe 179.

[0073] In this embodiment, the liquid suction pipe 179 includes a main liquid suction pipe 183 and a plurality of branch liquid suction pipes 185. The main liquid suction pipe 183 is disposed within the liquid storage tank 170 along the length of the liquid storage tank 170. One end of the main liquid suction pipe 183 is connected to the liquid discharge port 173, and the other end is sealed. The plurality of branch liquid suction pipes 185 are spaced apart along the length of the main liquid suction pipe 183. All branch liquid suction pipes 185 have one end connected to the main liquid suction pipe 183 and the other end is sealed. Several liquid suction holes 181 are provided on the sidewalls of the branch liquid suction pipes 185 near the bottom wall of the liquid storage tank 170.

[0074] In this embodiment, multiple suction branch pipes 185 are provided along the length of the main suction pipe 183, allowing the entire heat exchange medium within the liquid storage tank 170 to participate in the heat exchange cycle. Several suction holes 181 are provided on the sidewalls of the suction branch pipes 185, near the bottom wall of the liquid storage tank 170. This prevents the accumulation of bubbles at the suction holes 181 and prevents bubbles from being sucked through the suction holes 181.

[0075] Typically, the liquid level of the heat exchange medium in the liquid storage tank 170 is higher than that of the main suction pipe 183. The main suction pipe 183 and the branch suction pipe 185 are completely submerged in the heat exchange medium within the liquid storage tank 170. Bubbles generally float on the liquid surface. Several suction holes 181 are provided on the sidewall of the branch suction pipe 185, near the bottom wall of the liquid storage tank 170. These holes draw heat exchange medium from the bottom of the liquid storage tank 170. Due to the high pressure at the bottom, fewer bubbles remain in the heat exchange medium, and the suction holes 181 also filter the heat exchange medium, preventing bubbles from entering the circulation.

[0076] Of course, in other embodiments of the present application, the shape and structure of the liquid suction pipe 179 can be customized based on actual needs. For example, only one liquid suction pipe 183 can be provided, and the liquid suction holes 181 can be located in the area of the liquid suction pipe 183 near the bottom wall of the liquid storage tank 170. Alternatively, the liquid suction pipe 183 can be configured in a serpentine shape. Furthermore, the location of the pipe can also be adjusted based on actual needs.

[0077] Please refer to Figures 1 to 9In this embodiment, the immersion liquid cooling system 100 further includes a support frame 190, through which the liquid cooling tank 130 is disposed above the liquid storage tank 170. In this embodiment, the liquid cooling tank 130 is disposed above the liquid storage tank 170 via a support member, so that the heat exchange medium can be discharged into the liquid storage tank 170 through the drain pipe 150 under the action of gravity.

[0078] In this embodiment, the support frame 190 includes a lower layer, a middle layer, and an upper layer. The liquid storage tank 170 is provided with two liquid return ports 171. The liquid storage tank 170 is provided in the lower layer of the support frame 190, and a liquid cooling tank 130 is installed in both the middle layer and the upper layer. The liquid outlet 133 of the liquid cooling tank 130 provided in the upper layer is connected to the liquid return port 171 via a drain pipe 150. The height of the first connecting port 151 is higher than the preset liquid level height of the liquid cooling tank 130 provided in the upper layer. In this way, if the pipeline is blocked or other problems occur, the heat exchange medium will not overflow from the first connecting port. The liquid outlet 133 of the liquid cooling tank 130 provided in the middle layer is connected to the other liquid return port 171 via a pipe. Of course, in some embodiments of the present application, the liquid cooling tank 130 provided in the middle layer may also share a drain pipe 150 with the liquid cooling tank 130 provided in the upper layer, or each liquid cooling tank 130 may be provided with a corresponding drain pipe 150.

[0079] In this embodiment, the liquid storage tank 170 is further provided with an exhaust branch pipe 187. An exhaust port is provided at one end of the liquid storage tank 170 away from the exhaust branch pipe 175. One end of the exhaust branch pipe 187 is connected to the exhaust port, and the other end of the exhaust branch pipe 187 extends upward to the top of the liquid cooling tank 130 and bends to extend into the interior of the liquid cooling tank 130.

[0080] In this embodiment, branch pipes are provided to facilitate exhaust of air from liquid storage tank 170. Exhaust branch pipes 175 and exhaust ducts are provided at both ends of the liquid storage tank 170 along its length, further facilitating exhaust of liquid storage tank 170. The other end of exhaust branch pipe 187 extends upward to the top of liquid cooling tank 130 and bends to extend into the interior of liquid cooling tank 130. This allows droplets of heat exchange medium formed within exhaust branch pipe 187 to drip into liquid cooling tank 130.

[0081] Please refer to Figures 1 to 10 In this embodiment, the immersion liquid cooling system 100 further includes a container 115 and a fan 117. The side walls of the container 115 are provided with mounting notches, and the top wall of the container 115 is provided with a fixing notch. The heat exchanger 113 is mounted in the mounting notch, and the fan 117 is mounted in the fixing notch. The power element 111 and the liquid cooling tank 130 are both disposed within the container 115.

[0082] This embodiment utilizes container 115 to facilitate the overall transport and factory manufacturing of immersion liquid cooling system 100. Heat exchanger 113 is positioned within the mounting notch in the sidewall of container 115, facilitating heat exchange with the air outside container 115 and saving space. A fan 117 facilitates heat dissipation from heat exchanger 113.

[0083] In this embodiment, the power element 111 is a pump. In other examples of the present application, the power element 111 may also be other elements such as a compressor, as long as it allows the heat exchange medium to circulate.

[0084] In summary, this embodiment provides the drain pipe 150 with a first connection port 151, a second connection port 153, and a third connection port 154, and makes the first connection port 151 located above the second connection port 153, and the third connection port 154 located below the second connection port 153. The second connection port 153 is connected to the liquid outlet 133, and the first connection port 151 is configured to communicate with the external environment. The third connection port 154, the power element 111, the heat exchanger 113, and the liquid inlet 131 are connected in sequence through pipes. Since the first connection port 151 is connected to the external environment, the pressure in the drain pipe 150 is relatively low. In this way, the bubbles in the heat exchange medium discharged from the liquid outlet 133 into the drain pipe 150 rise from the high-pressure area to the low-pressure area under the action of buoyancy and float on the liquid surface until they burst and are discharged from the first connection port 151, thereby improving the bubbles in the heat exchange medium in the immersion liquid cooling cycle, which affects the heat exchange efficiency.

[0085] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An immersion liquid cooling system, characterized in that: It includes a power element (111), a heat exchanger (113), a liquid cooling tank (130) and a drain pipe (150); The liquid cooling tank (130) has a liquid inlet (131) and a liquid outlet (133); The liquid discharge pipe (150) has a first connection port (151), a second connection port (153) and a third connection port (154); The second connection port (153) is connected to the liquid outlet (133), and the first connection port (151) is configured to communicate with the external environment; The third connecting port (154), the power element (111), the heat exchanger (113) and the liquid inlet (131) are sequentially connected via pipelines.

2. The immersion liquid cooling system according to claim 1, characterized in that: The first connection port (151) is located above the second connection port (153), and the third connection port (154) is located below the second connection port (153); The immersion liquid cooling system further comprises a liquid storage tank (170), wherein the liquid storage tank (170) has a liquid return port (171) and a liquid discharge port (173); The third connecting port (154) is connected to the liquid return port (171); The liquid discharge port (173) is connected to the inlet of the power element (111) through a pipeline; The liquid storage tank (170) is provided with an exhaust branch pipe (175), and the exhaust branch pipe (175) extends upward and is configured to communicate with the external environment.

3. The immersion liquid cooling system according to claim 2, characterized in that: The liquid discharge pipe (150) is further provided with a fourth connecting port (163), and the fourth connecting port (163) is located above the second connecting port (153); The top end of the exhaust branch pipe (175) is connected to the fourth connecting port (163).

4. The immersion liquid cooling system according to claim 3, characterized in that: The first connecting port (151) and the third connecting port (154) are formed at both ends of the length direction of the drainage pipe (150), and the second connecting port (153) and the fourth connecting port (163) are both formed at both sides of the length direction of the drainage pipe (150); The first connection port (151) is provided with a shielding cover (165).

5. The immersion liquid cooling system according to any one of claims 2 to 4, characterized in that: The liquid return port (171) is provided on the top wall of the liquid storage tank (170); A curved pipe (177) is provided in the liquid storage tank (170) corresponding to the liquid return port (171), and an end portion of the curved pipe (177) extends toward one end of the length of the liquid storage tank (170).

6. The immersion liquid cooling system according to any one of claims 2 to 4, characterized in that: The liquid discharge port (173) is provided on one side of the liquid storage tank (170), and a liquid suction pipe (179) is provided in the liquid storage tank (170). One end of the liquid suction pipe (179) is connected to the liquid discharge port (173), and the other end extends toward the other side of the length direction of the liquid storage tank (170); The liquid suction tube (179) is provided with a liquid suction hole (181), and the liquid suction hole (181) is configured to filter bubbles.

7. The immersion liquid cooling system according to claim 6, characterized in that: The liquid suction pipe (179) includes a liquid suction main pipe (183) and a plurality of liquid suction branch pipes (185); The liquid suction main pipe (183) is arranged in the liquid storage tank (170) along the length of the liquid storage tank (170), and one end of the liquid suction main pipe (183) is connected to the liquid discharge port (173), and the other end is closed; A plurality of the liquid suction branch pipes (185) are arranged on the liquid suction main pipe (183) at intervals along the length direction of the liquid suction main pipe (183), and one end of all the liquid suction branch pipes (185) is connected to the liquid suction main pipe (183) and the other end is closed; A plurality of liquid suction holes (181) are provided on the side wall of the liquid suction branch pipe (185) near the bottom wall of the liquid storage tank (170).

8. The immersion liquid cooling system according to any one of claims 2 to 4, characterized in that: The immersion liquid cooling system further comprises a support frame (190), and the liquid cooling tank (130) is arranged above the liquid storage tank (170) through the support frame (190).

9. The immersion liquid cooling system according to claim 8, characterized in that: The liquid storage tank (170) is also provided with an exhaust branch pipe (187); An exhaust port is provided at one end of the liquid storage tank (170) away from the exhaust branch pipe (175), one end of the exhaust branch pipe (187) is connected to the exhaust port, and the other end of the exhaust branch pipe (187) extends upward to support the top of the liquid cooling tank (130) and bends to extend into the interior of the liquid cooling tank (130).

10. The immersion liquid cooling system according to any one of claims 1 to 4, characterized in that: The immersion liquid cooling system further includes a container (115) and a fan (117); The side wall of the container (115) is provided with a mounting notch, and the top wall of the container (115) is provided with a fixing notch; The heat exchanger (113) is installed in the installation notch, and the fan (117) is installed in the fixing notch; The power element (111) and the liquid cooling tank (130) are both arranged in the container (115).

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