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 liquid cooling tank, a liquid inlet pipeline and a one-way valve. The liquid cooling tank is provided with a liquid inlet and a liquid outlet, and the liquid inlet is communicated with the bottom of the liquid cooling tank. One end of the liquid inlet pipeline is configured to be connected with the power element so as to supply liquid into the liquid cooling tank. The one-way valve is arranged on the liquid inlet pipeline and used for blocking backflow of cooling liquid in the liquid cooling groove. The backflow of the liquid inlet can be blocked under the conditions that the immersed liquid cooling system breaks down and the like.

Description

Technical Field

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

[0002] Immersion cooling is a highly efficient data center heat dissipation technology that fully or partially immerses servers and other electronic equipment in a coolant, utilizing the coolant's high thermal conductivity and large surface area to absorb heat. This technology offers advantages such as high heat dissipation efficiency and energy savings.

[0003] In the prior art, in order to ensure better heat exchange between the coolant and electronic equipment such as servers, the liquid cooling tank used to immerse the electronic equipment generally adopts a bottom-in-top-out method to circulate the coolant. In this way, the liquid level of the coolant in the liquid cooling tank can be maintained at a preset height during the coolant circulation process.

[0004] However, when an immersion liquid cooling system experiences a sudden system failure (e.g., a pipe burst) or is shut down for maintenance, the coolant in the immersion tank can easily flow back through the liquid inlet, causing the coolant level in the liquid cooling tank to drop rapidly and significantly, making it impossible for the electronic equipment to be immersed in the coolant, thereby affecting the heat exchange of the electronic device. Utility Model Content

[0005] The purpose of the utility model is to provide an immersion liquid cooling system, which can block the backflow of the liquid inlet in the event of a failure of the immersion liquid cooling system.

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

[0007] The utility model provides an immersion liquid cooling system, comprising a liquid cooling tank, a liquid inlet pipe and a one-way valve;

[0008] The liquid cooling tank has a liquid inlet and a liquid outlet, and the liquid inlet is connected to the bottom of the liquid cooling tank;

[0009] One end of the liquid inlet pipe is configured to be connected to the power element to supply liquid into the liquid cooling tank;

[0010] The one-way valve is arranged on the liquid inlet pipe, and the one-way valve is used to block the backflow of the coolant in the liquid cooling tank.

[0011] In an optional embodiment, the immersion liquid cooling system further includes a power element and a heat exchanger;

[0012] The liquid inlet pipeline includes a connecting pipeline and a balancing pipeline;

[0013] One end of the connecting pipe is connected to the liquid inlet, and the other end extends upward and exceeds the maximum liquid level of the liquid cooling tank in the height direction, then extends downward and is connected to the outlet of the heat exchanger;

[0014] The outlet of the power element is connected to the inlet of the heat exchanger through a pipeline;

[0015] The liquid outlet is connected to the inlet of the power element through a pipeline;

[0016] The balancing pipe is connected to the highest position of the connecting pipe, and the one-way valve is arranged on the balancing pipe;

[0017] When the coolant in the connecting pipe flows back, the one-way valve opens under the action of the pressure difference to connect the connecting pipe with the external environment;

[0018] When the coolant in the connecting pipe flows in the forward direction, the one-way valve is in the closed state.

[0019] In an optional embodiment, the connecting pipe includes a first connecting section, a second connecting section, and a third connecting section connected in sequence;

[0020] One end of the first connecting section is connected to the liquid inlet, and the other end extends upward and exceeds the maximum liquid level of the liquid cooling tank in the height direction;

[0021] The second connecting section is arranged horizontally, and the balancing pipe is connected to the second connecting section;

[0022] The third connecting section extends downward and is communicated with the outlet of the heat exchanger.

[0023] In an optional embodiment, the balancing pipe extends away from one end of the connecting pipe toward the liquid cooling tank and extends to the top of the liquid cooling tank.

[0024] In an optional embodiment, the liquid inlet pipeline further includes a main liquid supply pipeline, there are multiple liquid cooling tanks, and there are multiple connecting pipelines;

[0025] One end of all the connecting pipes is connected to the liquid inlets of the plurality of liquid cooling tanks in a one-to-one correspondence, and the other end of all the connecting pipes extends upward and exceeds the maximum liquid level height of all the liquid cooling tanks in the height direction, then extends downward and is connected to the main liquid supply pipe;

[0026] The main liquid supply pipeline is connected to the outlet of the heat exchanger;

[0027] A balancing pipe is connected to the highest position of at least one connecting pipe.

[0028] In an optional embodiment, the immersion liquid cooling system further includes a support frame;

[0029] The support frame is provided with multiple layers in the height direction, and multiple liquid cooling tanks are provided in a one-to-one correspondence on each layer of the support frame;

[0030] All connecting pipes extend upward beyond the maximum liquid level height of all liquid cooling tanks located on the uppermost layer and then extend downward.

[0031] In an optional embodiment, there are multiple groups of heat exchangers, and the main liquid supply pipeline is provided with multiple branch pipelines;

[0032] The plurality of branch pipes are connected to the outlets of the plurality of heat exchangers in a one-to-one correspondence.

[0033] In an optional embodiment, the liquid cooling tank includes a tank body and a partition plate;

[0034] The tank body has an accommodating space;

[0035] The partition plate is arranged in the accommodating space along the length direction of the tank body, and divides the accommodating space into a liquid cooling chamber and an leaching chamber that are independent of each other;

[0036] The liquid inlet is in communication with the bottom of the liquid cooling chamber, and the liquid cooling chamber is configured to place the equipment to be cooled;

[0037] The liquid outlet is communicated with the leaching chamber;

[0038] The cooling liquid in the liquid cooling chamber can overflow into the leaching chamber through the partition plate;

[0039] The maximum liquid level of the liquid cooling tank is flush with the top of the partition plate.

[0040] In an optional embodiment, a liquid inlet box is provided on one side of the tank body, and the liquid inlet is provided in the liquid inlet box;

[0041] The tank body is located at the bottom of the liquid cooling chamber and is formed with a plurality of liquid cooling channels. The plurality of liquid cooling channels are arranged along the length direction of the tank body, and one end of the plurality of liquid cooling channels is connected to the liquid inlet tank.

[0042] The side wall of the liquid cooling channel is provided with a plurality of communication holes, which are communicated with the liquid cooling cavity.

[0043] In an optional embodiment, the immersion liquid cooling system further includes a container and a fan;

[0044] The container is provided with installation notches and fixing notches;

[0045] The heat exchanger is installed in the installation notch, the fan is installed in the fixed notch, and the fan is configured to dissipate heat from the heat exchanger;

[0046] The power components and liquid cooling tank are installed in the container.

[0047] The beneficial effects of the immersion liquid cooling system provided by the embodiment of the utility model are:

[0048] The present application sets a one-way valve in the liquid inlet pipe. The one-way valve can block the problem of the coolant in the liquid cooling tank being sucked back by the liquid inlet pipe in the event of a system failure. Therefore, the liquid level in the liquid cooling tank can be kept low in the event of a system failure. Electronic equipment such as servers and data centers can be immersed in the coolant and exchange heat with the coolant, thereby avoiding damage to electronic equipment such as servers and data centers due to high temperature caused by a failure of the immersion liquid cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 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.

[0050] Figure 1 A schematic diagram of an immersion liquid cooling system provided in an embodiment of the present utility model;

[0051] Figure 2 A schematic diagram of the arrangement of multiple liquid cooling tanks in an immersion liquid cooling system provided by an embodiment of the present utility model;

[0052] Figure 3 A schematic diagram of the connection of the main liquid supply pipe in the immersion liquid cooling system provided by an embodiment of the present invention;

[0053] Figure 4 A schematic diagram of the connection between the connecting pipe and the balancing pipe in the immersion liquid cooling system provided by an embodiment of the present utility model;

[0054] Figure 5 A schematic diagram of the structure of a liquid cooling tank of an immersion liquid cooling system provided in an embodiment of the present utility model;

[0055] Figure 6 A schematic cross-sectional view of a liquid cooling tank of an immersion liquid cooling system provided in an embodiment of the present invention;

[0056] Figure 7 for Figure 6 A in the middle is an enlarged schematic diagram;

[0057] Figure 8 This is a schematic diagram of an immersion liquid cooling system provided in an embodiment of the present invention being arranged in a container.

[0058] Icons: 100- immersion liquid cooling system; 110- liquid cooling tank; 111- liquid inlet; 112- liquid outlet; 113- first liquid cooling tank; 114- second liquid cooling tank; 115- third liquid cooling tank; 116- fourth liquid cooling tank; 117- tank body; 118- partition plate; 119- accommodating space; 121- liquid cooling chamber; 123- leaching chamber; 124- liquid inlet tank; 125- liquid cooling channel; 126- communicating hole; 130- liquid inlet pipe; 131- one-way valve; 132- connecting pipe; 133- balancing pipe; 13 4-first connecting section; 135-second connecting section; 136-third connecting section; 137-main liquid supply pipeline; 138-first connecting pipeline; 139-second connecting pipeline; 141-third connecting pipeline; 142-fourth connecting pipeline; 143-first balancing pipeline; 144-second balancing pipeline; 145-branch pipeline; 150-support frame; 151-first supporting frame; 153-second supporting frame; 171-power element; 173-heat exchanger; 174-container; 175-fan; 176-liquid storage tank. DETAILED DESCRIPTION

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0064] 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.

[0065] Example

[0066] When an immersion liquid cooling system experiences a sudden system failure (for example, a pipe burst) or is shut down for maintenance, the coolant in the liquid inlet pipe will flow back under gravity, and the coolant in the immersion tank will easily flow back through the liquid inlet through siphoning, causing the coolant level in the liquid cooling tank to drop rapidly and significantly, making it impossible for electronic equipment to be immersed in the coolant, affecting the heat exchange of the electronic equipment.

[0067] Please refer to Figures 1 to 5 The present invention provides an immersion liquid cooling system 100 including a liquid cooling tank 110, a liquid inlet pipe 130, and a one-way valve 131. The liquid cooling tank 110 has a liquid inlet 111 and a liquid outlet 112. The liquid inlet 111 is connected to the bottom of the liquid cooling tank 110. One end of the liquid inlet pipe 130 is configured to connect to a power element 171 to supply liquid into the liquid cooling tank 110. The one-way valve 131 is disposed in the liquid inlet pipe 130 and is used to prevent the coolant in the liquid cooling tank 110 from flowing back.

[0068] In this embodiment, a one-way valve 131 is provided in the liquid inlet pipe 130. The one-way valve 131 can prevent the liquid inlet pipe 130 from absorbing the coolant in the liquid cooling tank 110 and then flowing back in the event of a system failure. Therefore, the liquid level in the liquid cooling tank 110 can be kept high even in the event of a system failure. Electronic equipment such as servers and data centers can be immersed in the coolant and exchange heat with the coolant, thereby avoiding damage to electronic equipment such as servers and data centers due to high temperature caused by a failure of the immersion liquid cooling system 100.

[0069] In this embodiment, the immersion liquid cooling system 100 further includes a power element 171 and a heat exchanger 173. The liquid inlet pipe 130 includes a connecting pipe 132 and a balancing pipe 133. One end of the connecting pipe 132 is connected to the liquid inlet 111. The other end extends upward, surpassing the maximum liquid level of the liquid cooling tank 110 in height, and then extends downward to connect to the outlet of the heat exchanger 173. The outlet of the power element 171 is connected to the inlet of the heat exchanger 173 via a pipe. The liquid outlet 112 is connected to the inlet of the power element 171 via a pipe. The balancing pipe 133 is connected to the highest point of the connecting pipe 132, and a one-way valve 131 is installed in the balancing pipe 133. When the coolant in the connecting pipe 132 flows backward, the one-way valve 131 opens due to the pressure difference, allowing the connecting pipe 132 to connect to the external environment. When the coolant in the connecting pipe 132 flows forward, the one-way valve 131 is closed.

[0070] The main reason for installing the check valve 131 in the balancing pipe rather than the connecting pipe in this embodiment is that if the check valve 131 is installed after the connecting pipe 132 during normal liquid supply, it will increase the fluid resistance. However, if it is installed in the balancing pipe 133, the coolant will not flow through the balancing pipe 133 during normal liquid supply, thereby not increasing the fluid resistance. The balancing pipe 133 is connected to the highest point of the connecting pipe 132, and the check valve 131 is installed in the balancing pipe 133. In this way, in the event of a system failure, when the connecting pipe 132 flows back, a siphon effect will be formed, increasing the negative pressure in the connecting pipe. The negative pressure can cause the check valve 131 to open, allowing the connecting pipe 132 to communicate with the external atmosphere, thereby balancing the negative pressure, blocking the flow of the connecting pipe 132, and thus preventing the siphon effect. In this way, the coolant in the liquid cooling tank 110 will not be sucked away by the siphon effect. One end of the connecting pipe 132 is connected to the liquid inlet 111, and the other end extends upward and exceeds the maximum liquid level height of the liquid cooling tank 110 in the height direction and then extends downward. This can prevent the pressure of the coolant in the liquid cooling tank 110 from causing the coolant to flow back.

[0071] It should be noted that the maximum liquid level of the liquid cooling tank 110 can be understood as the height of the liquid surface of the coolant in the liquid cooling tank 110. Generally, the maximum liquid level of the top-inlet and bottom-outlet liquid cooling tank 110 is fixed, and the coolant in the liquid cooling tank 110 will only flow out of the liquid outlet 112 when it exceeds the maximum liquid level. This allows the immersion depth of electronic equipment such as data centers and servers to be controlled during operation of the immersion cooling system 100.

[0072] In the case of a system failure in the existing immersion liquid cooling system 100, such as a pipe rupture or reverse rotation of the power element 171, the liquid supply pipe will backflow, drawing the cooling medium from the liquid cooling tank 110. This will prevent the running servers and data centers from being immersed in the coolant, causing a rapid temperature increase, affecting normal operation or even damaging them. However, after the one-way valve 131 is installed in this embodiment, although the liquid supply pipe cannot supply coolant to the liquid cooling tank 110, the coolant in the liquid cooling tank 110 does not backflow, and the data center, servers, and other equipment remain immersed in the coolant in the liquid cooling tank 110. Heat from the servers and data center can still be transferred to the coolant to achieve cooling.

[0073] In some embodiments of the present application, the one-way valve 131 may be directly disposed in the connecting pipe 132 to block the backflow by utilizing the one-way conductivity of the one-way valve 131 .

[0074] Please refer to Figures 1 to 5 In this embodiment, connecting pipe 132 includes a first connecting section 134, a second connecting section 135, and a third connecting section 136, which are connected in sequence. One end of first connecting section 134 is connected to liquid inlet 111, and the other end extends upward and exceeds the maximum liquid level of liquid cooling tank 110. Second connecting section 135 is horizontally disposed, and balancing pipe 133 is connected to second connecting section 135. Third connecting section 136 extends downward and is connected to the outlet of heat exchanger 173.

[0075] In this embodiment, the connecting pipe 132 is formed into an inverted "U" shape, forming a communicating vessel principle with the liquid cooling tank 110, thereby overcoming the gravity of the coolant in the liquid cooling tank 110 and causing the coolant to flow back. The second connecting section 135 is arranged horizontally to facilitate connection to the balancing pipe 133.

[0076] In this embodiment, the balancing pipe 133 extends away from one end of the connecting pipe 132 and toward the liquid cooling tank 110 , and extends to the top of the liquid cooling tank 110 .

[0077] In this embodiment, the balancing pipe 133 extends away from one end of the connecting pipe 132 to the top of the liquid cooling tank 110 , so that after the one-way valve 131 is opened, droplets of coolant formed in the balancing pipe 133 can drip into the liquid cooling tank 110 .

[0078] In this embodiment, the liquid inlet pipe 130 also includes a main liquid supply pipe 137. There are multiple liquid cooling tanks 110 and multiple connecting pipes 132. One end of each connecting pipe 132 is connected to the liquid inlets 111 of the multiple liquid cooling tanks 110. The other end of each connecting pipe 132 extends upward, exceeds the maximum liquid level of all liquid cooling tanks 110, and then extends downward to connect with the main liquid supply pipe 137. The main liquid supply pipe 137 is connected to the outlet of the heat exchanger 173. A balancing pipe 133 is connected to the highest point of at least one connecting pipe 132.

[0079] This embodiment does not require a one-way valve 131 and a balancing pipe 133 to be provided for each liquid cooling tank 110 , thereby saving costs.

[0080] In this embodiment, the immersion liquid cooling system 100 further includes a support frame 150. The support frame 150 is arranged in multiple layers in height, with multiple liquid cooling tanks 110 correspondingly positioned on each layer of the support frame 150. All connecting pipes 132 extend upward beyond the maximum liquid level of the topmost liquid cooling tank 110 and then downward. The balancing pipe 133 is connected to the second connecting section 135 of the connecting pipe 132 connected to the topmost liquid cooling tank.

[0081] In this embodiment, all connecting pipes 132 extend upward beyond the maximum liquid level of the topmost liquid cooling tank 110 before extending downward. This ensures that the highest points of all connecting pipes 132 are at the same height, thereby better balancing negative pressure. This also facilitates relatively even distribution of coolant within the main pipe to the multiple connecting pipes 132 during normal operation of the immersion liquid cooling system 100.

[0082] Of course, in some other embodiments of the present application, the highest point of the upward extension of the connecting pipe 132 corresponding to the liquid cooling tank 110 may only be higher than the maximum liquid level of the corresponding liquid cooling tank 110 .

[0083] Please refer to Figures 1 to 5 Specifically, in this embodiment, there are two support frames 150, namely a first support frame 151 and a second support frame 153. There are four liquid cooling tanks 110, namely a first liquid cooling tank 113, a second liquid cooling tank 114, a third liquid cooling tank 115, and a fourth liquid cooling tank 116. There are four connecting pipes 132, namely a first connecting pipe 138, a second connecting pipe 139, a third connecting pipe 141, and a fourth connecting pipe 142. There are two horizontal pipes, namely a first balancing pipe 143 and a second balancing pipe 144.

[0084] The first liquid cooling tank 113 is located in the middle of the first support frame 151, and the second liquid cooling tank 114 is located in the upper layer of the first support frame 151. The third liquid cooling tank 115 is located in the middle of the second support frame 153, and the fourth liquid cooling tank 116 is located in the upper layer of the second support frame 153. A first connecting pipe 138 is connected to the first liquid cooling tank 113, a second connecting pipe 139 is connected to the second liquid cooling tank 114, a third connecting pipe 141 is connected to the third liquid cooling tank 115, and a fourth connecting pipe 142 is connected to the fourth liquid cooling tank 116. The maximum liquid levels of the second and fourth liquid cooling tanks 114 and 116 are substantially the same. The first ends of the first, second, third, and fourth connecting pipes 138, 139, 141, and 142 all extend upward beyond the maximum liquid levels of the second and fourth liquid cooling tanks 114 and 116. A first balancing pipe 143 is connected to the second section of the second connecting pipe 139, with its end extending toward the top of the second liquid cooling tank 114. The second balancing pipe 144 is connected to the second section of the fourth connecting pipe 142, and its end extends toward the top of the fourth liquid cooling tank 116. Both the first balancing pipe 143 and the second balancing pipe 144 are provided with a one-way valve 131.

[0085] Of course, in some other embodiments of the present application, a balancing pipe 133 may be provided corresponding to each connecting pipe 132 , and a one-way valve 131 may be provided on the balancing pipe 133 .

[0086] In this embodiment, there are multiple groups of heat exchangers 173, and the main liquid supply pipe 137 is provided with multiple branch pipes 145. The multiple branch pipes 145 are connected to the outlets of the multiple heat exchangers 173 in a one-to-one correspondence. By connecting the multiple branch pipes 145 to the multiple heat exchangers 173, a better connection can be achieved.

[0087] Please refer to Figures 1 to 7 In this embodiment, the liquid cooling tank 110 includes a tank body 117 and a partition plate 118. The tank body 117 has an accommodating space 119. The partition plate 118 is arranged in the accommodating space 119 along the length direction of the tank body 117, and divides the accommodating space 119 into a liquid cooling chamber 121 and an leaching chamber 123 that are independent of each other. The liquid inlet 111 is connected to the bottom of the liquid cooling chamber 121, and the liquid cooling chamber 121 is configured to place the equipment to be cooled. The liquid outlet 112 is connected to the leaching chamber 123. The cooling liquid in the liquid cooling chamber 121 can overflow into the leaching chamber 123 through the partition plate 118. The maximum liquid level height of the liquid cooling tank 110 is flush with the top of the partition plate 118.

[0088] In this embodiment, the accommodating space 119 of the tank body 117 is divided into a liquid cooling chamber 121 and an leaching chamber 123 by a partition plate 118. This ensures that the coolant in the liquid cooling chamber 121 can overflow into the overflow chamber only after reaching the highest liquid level, thereby ensuring that the coolant in the liquid cooling chamber 121 is always full.

[0089] In this embodiment, a liquid inlet box 124 is provided on one side of the tank body 117, and the liquid inlet port 111 is disposed in the liquid inlet box 124. A plurality of liquid cooling channels 125 are formed at the bottom of the tank body 117, located at the liquid cooling chamber 121. These channels 125 extend along the length of the tank body 117 and communicate with the liquid inlet box 124 at one end. The sidewalls of the channels 125 are provided with a plurality of communication holes 126, which communicate with the liquid cooling chamber 121.

[0090] In this embodiment, a plurality of liquid cooling channels 125 are provided at the bottom of the tank body 117 , so that the cooling liquid can be relatively evenly supplied to the bottom of the liquid cooling cavity 121 .

[0091] In one embodiment of the present application, multiple square tubes can be laid side by side at the bottom of the liquid cooling chamber 121, a liquid cooling channel 125 is formed inside the square tube, one end of the square tube is connected to the liquid inlet box 124, and a hole 126 is punched on the square tube to form a connecting hole.

[0092] In some other embodiments of the present application, a liquid cooling plate may be provided at the bottom of the liquid cooling chamber 121 , and a connecting hole 126 may be punched on the liquid cooling plate to evenly transport the cooling liquid to different areas of the liquid cooling tank 110 using the liquid cooling channel 125 formed in the liquid cooling plate.

[0093] Please refer to Figures 1 to 8 In this embodiment, the immersion liquid cooling system 100 further includes a container 174 and a fan 175. The container 174 is provided with a mounting notch and a fixing notch. The heat exchanger 173 is mounted in the mounting notch, and the fan 175 is mounted in the fixing notch. The fan 175 is configured to dissipate heat from the heat exchanger 173. The power element 171 and the liquid cooling tank 110 are disposed within the container 174.

[0094] This embodiment can facilitate factory production and transportation by providing a container 174.

[0095] In this embodiment, the mounting notch is provided on the side wall of the container 174, while the fixing notch is provided on the top wall of the container 174. Of course, in other embodiments of the present application, the location of the mounting notch and the fixing notch can be selected according to actual conditions, as long as the fan 175 can dissipate heat from the heat exchanger 173.

[0096] In this embodiment, the liquid cooling circulation system further includes a liquid storage tank 176, which is disposed at the bottom layer of the support frame 150. The liquid outlet 112 of the liquid cooling tank 110 is connected to the liquid storage tank 176 via a pipe. The liquid storage tank 176 is also connected to the inlet of the power element 171 via a pipe. The power element 171 can be a power element 171 such as a pump.

[0097] In summary, this embodiment provides a one-way valve 131 in the liquid inlet pipe 130. The one-way valve 131 can block the problem of the liquid inlet pipe 130 absorbing the coolant in the liquid cooling tank 110 and then flowing back in the event of a system failure. Therefore, in the event of a system failure, the liquid level in the liquid cooling tank 110 can still be maintained. Electronic equipment such as servers and data centers can be immersed in the coolant and exchange heat with the coolant, thereby avoiding damage to electronic equipment such as servers and data centers due to high temperature caused by a failure of the immersion liquid cooling system 100.

[0098] 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 comprises a liquid cooling tank (110), a liquid inlet pipe (130) and a one-way valve (131); The liquid cooling tank (110) has a liquid inlet (111) and a liquid outlet (112), and the liquid inlet (111) is connected to the bottom of the liquid cooling tank (110); One end of the liquid inlet pipe (130) is configured to be connected to a power element (171) to supply liquid into the liquid cooling tank (110); The one-way valve (131) is provided on the liquid inlet pipe (130), and the one-way valve (131) is used to block the backflow of the cooling liquid in the liquid cooling tank (110).

2. The immersion liquid cooling system according to claim 1, characterized in that: The immersion liquid cooling system further includes a power element (171) and a heat exchanger (173); The liquid inlet pipeline (130) includes a connecting pipeline (132) and a balancing pipeline (133); One end of the connecting pipe (132) is in communication with the liquid inlet (111), and the other end extends upward and exceeds the maximum liquid level of the liquid cooling tank (110) in the height direction, then extends downward and is in communication with the outlet of the heat exchanger (173); The outlet of the power element (171) is connected to the inlet of the heat exchanger (173) via a pipeline; The liquid outlet (112) is connected to the inlet of the power element (171) through a pipeline; The balancing pipe (133) is connected to the highest position of the connecting pipe (132), and the one-way valve (131) is arranged on the balancing pipe (133); When the coolant in the connecting pipe (132) flows back, the one-way valve (131) opens under the action of the pressure difference to connect the connecting pipe (132) with the external environment; When the coolant in the connecting pipe (132) flows in the forward direction, the one-way valve (131) is in a closed state.

3. The immersion liquid cooling system according to claim 2, characterized in that: The connecting pipe (132) comprises a first connecting section (134), a second connecting section (135) and a third connecting section (136) which are connected in sequence; One end of the first connecting section (134) is in communication with the liquid inlet (111), and the other end extends upward and exceeds the maximum liquid level of the liquid cooling tank (110) in the height direction; The second connecting section (135) is arranged horizontally, and the balancing pipe (133) is connected to the second connecting section (135); The third connecting section (136) extends downward and communicates with the outlet of the heat exchanger (173).

4. The immersion liquid cooling system according to claim 2 or 3, characterized in that: One end of the balancing pipe (133) away from the connecting pipe (132) extends toward the liquid cooling tank (110) and extends to the top of the liquid cooling tank (110).

5. The immersion liquid cooling system according to claim 2 or 3, characterized in that: The liquid inlet pipeline (130) further includes a main liquid supply pipeline (137), there are multiple liquid cooling tanks (110), and there are multiple connecting pipelines (132); One end of all the connecting pipes (132) is connected to the liquid inlets (111) of the plurality of liquid cooling tanks (110) in a one-to-one correspondence, and the other end of all the connecting pipes (132) extends upward and exceeds the maximum liquid level of all the liquid cooling tanks (110) in the height direction, then extends downward and is connected to the main liquid supply pipe (137); The main liquid supply pipeline (137) is in communication with the outlet of the heat exchanger (173); The highest position of at least one of the connecting pipes (132) is connected to the balancing pipe (133).

6. The immersion liquid cooling system according to claim 5, characterized in that: The immersion liquid cooling system further includes a support frame (150); The support frame (150) is provided with multiple layers in the height direction, and the plurality of liquid cooling tanks (110) are provided in a one-to-one correspondence on each layer of the support frame (150); All the connecting pipes (132) extend upward beyond the maximum liquid level of the liquid cooling tank (110) located at the uppermost layer and then extend downward.

7. The immersion liquid cooling system according to claim 5, characterized in that: There are multiple groups of heat exchangers (173), and the main liquid supply pipeline (137) is provided with multiple branch pipelines (145); The plurality of branch pipes (145) are connected to the outlets of the plurality of heat exchangers (173) in a one-to-one correspondence.

8. The immersion liquid cooling system according to claim 7, characterized in that: The liquid cooling tank (110) includes a tank body (117) and a partition plate (118); The tank body (117) has an accommodating space (119); The partition plate (118) is arranged in the accommodating space (119) along the length direction of the tank body (117), and divides the accommodating space (119) into a liquid cooling chamber (121) and an leaching chamber (123) that are independent of each other; The liquid inlet (111) is in communication with the bottom of the liquid cooling chamber (121), and the liquid cooling chamber (121) is configured to accommodate equipment to be cooled; The liquid outlet (112) is in communication with the leaching chamber (123); The cooling liquid in the liquid cooling chamber (121) can overflow into the leaching chamber (123) through the partition plate (118); The maximum liquid level of the liquid cooling tank (110) is flush with the top of the partition plate (118).

9. The immersion liquid cooling system according to claim 8, characterized in that: A liquid inlet box (124) is provided on one side of the tank body (117), and the liquid inlet (111) is provided in the liquid inlet box (124). The tank body (117) is located at the bottom of the liquid cooling cavity (121) and is formed with a plurality of liquid cooling channels (125). The plurality of liquid cooling channels (125) are arranged along the length direction of the tank body (117), and one end of the plurality of liquid cooling channels (125) is connected to the liquid inlet box (124). The side wall of the liquid cooling channel (125) is provided with a plurality of communication holes (126), and the communication holes (126) are in communication with the liquid cooling cavity (121).

10. The immersion liquid cooling system according to claim 2 or 3, characterized in that: The immersion liquid cooling system further includes a container (174) and a fan (175); The container (174) is provided with an installation notch and a fixing notch; The heat exchanger (173) is installed in the installation notch, the fan (175) is installed in the fixing notch, and the fan (175) is configured to dissipate heat for the heat exchanger (173); The power element (171) and the liquid cooling tank (110) are arranged in the container (174).

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