Immersed liquid cooling system

Abstract

The invention provides an immersed liquid cooling system, and relates to the field of liquid cooling. The immersed liquid cooling system comprises a liquid cooling tank, the liquid cooling tank is provided with a containing space, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the containing space, and the liquid inlet is configured to be connected with a liquid supply assembly so as to convey cooled cooling liquid into the containing space. The liquid storage tank is provided with a liquid storage space, a backflow port and a liquid discharge port, the backflow port and the liquid discharge port are communicated with the liquid storage space, the liquid storage tank is used for storing redundant cooling media, and the liquid discharge port is configured to be connected with the liquid supply assembly so that the liquid supply assembly can suck the cooling liquid in the liquid storage tank. The liquid cooling tank is arranged above the liquid storage tank through the supporting frame; and the liquid discharging pipeline is connected between the liquid inlet and the backflow port, and cooling liquid discharged through heat exchange in the liquid cooling groove can flow back into the liquid storage tank through the liquid discharging pipeline. According to the utility model, the space layout is more reasonable, so that the immersed liquid cooling system can be better integrated in the container.

Description

Technical Field

[0001] The present invention relates to the field of liquid cooling, and in particular to an immersion liquid cooling system. Background Art

[0002] Immersion liquid cooling system is a heat dissipation system that fully or partially immerses electronic equipment in cooling liquid. The working principle of immersion liquid cooling system is to use the high heat capacity and high thermal conductivity of the cooling liquid to absorb and transfer the heat generated by the electronic equipment, thereby achieving the purpose of heat dissipation.

[0003] Containers can be easily moved as a whole and manufactured in factories, so integrating the immersion liquid cooling system into containers has become a new need.

[0004] However, in the existing immersion liquid cooling system, the outlet of the liquid cooling tank is directly connected to the inlet of the power element through a pipeline, which leads to poor stability of the liquid flow in the circulation flow path. Summary of the invention

[0005] Objectives of the present invention include, for example, providing an immersion liquid cooling system that can improve the stability of the circulating flow of the coolant in the immersion liquid cooling system.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] The present invention provides an immersion liquid cooling system, comprising:

[0008] A liquid cooling tank, the liquid cooling tank having a containing space and being provided with a liquid inlet and a liquid outlet communicating with the containing space, wherein the liquid inlet is configured to be connected to the liquid supply assembly to deliver the cooled coolant into the containing space;

[0009] A liquid storage tank, the liquid storage tank having a liquid storage space and a return port and a liquid discharge port communicated with the liquid storage space, the liquid storage tank is used to store excess cooling medium, and the liquid discharge port is configured to be connected to the liquid supply assembly to supply liquid to the liquid supply assembly; and,

[0010] The drain pipe is connected between the liquid inlet and the reflux port. The coolant discharged from the liquid cooling tank after heat exchange can flow back into the liquid storage tank through the drain pipe.

[0011] In an optional embodiment, the immersion liquid cooling system further includes a support frame, and the liquid cooling tank is arranged above the liquid storage tank through the support frame;

[0012] One end of the liquid storage tank partially extends out of the end of the liquid cooling tank at one end in the length direction;

[0013] The reflux port is arranged on the top wall of the extended portion of the liquid storage tank;

[0014] The liquid outlet is arranged on a side of the liquid cooling tank corresponding to the liquid storage tank extending out of the liquid cooling tank.

[0015] In an optional embodiment, there are at least two liquid cooling tanks, the support frame is provided with multiple layers, the liquid storage tank is provided at the lowest layer of the support frame, and the liquid cooling tanks are provided one by one at each layer of the support frame;

[0016] The liquid outlets of all liquid cooling tanks are arranged on the same side;

[0017] There are multiple liquid discharge pipes, and the extended part of the liquid storage tank is provided with multiple reflux ports;

[0018] A plurality of liquid discharge pipes are connected to the liquid outlet and the reflux port in a one-to-one correspondence.

[0019] In an optional embodiment, the number of the support frames is at least two, and the number of the liquid storage tanks is at least two;

[0020] All liquid storage tanks are arranged one by one on the bottom layers of all support frames;

[0021] A connecting pipe is connected between any two adjacent liquid storage tanks, and the connecting pipe is used to balance the liquid level between the liquid storage tanks.

[0022] In an optional embodiment, an elbow is provided in the liquid storage tank corresponding to the reflux port, one end of the elbow is connected to the reflux port, and the other end of the elbow extends toward one side in the length direction of the liquid storage tank.

[0023] In an optional embodiment, the liquid discharge port is provided at one end of the liquid storage tank;

[0024] A liquid suction pipe is arranged in the liquid storage box along the length direction of the liquid suction pipe, one end of the liquid suction pipe is connected to the liquid discharge port, and the other end of the liquid suction pipe is closed;

[0025] A plurality of suction holes are arranged on one side of the suction pipe close to the bottom of the liquid storage tank.

[0026] In an optional embodiment, the liquid cooling tank includes a tank body and a partition plate;

[0027] The accommodating space is arranged in the tank body, and the partition 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 which are independent of each other;

[0028] The liquid inlet is connected to the liquid cooling chamber, the liquid discharge port is arranged on the side of the tank body where the liquid storage tank extends, and the liquid discharge port is connected to the leaching chamber;

[0029] The cooling liquid in the liquid cooling chamber can overflow from the top of the partition plate into the leaching chamber.

[0030] In an optional embodiment, the liquid cooling tank further includes a liquid inlet tank;

[0031] The liquid inlet box is arranged on the side of the tank body where the liquid storage box extends out, and the liquid inlet port is arranged on the liquid inlet box;

[0032] A plurality of liquid inlet channels are formed inside the bottom wall of the liquid cooling chamber, and the plurality of liquid inlet channels are arranged side by side and extend along the length direction of the liquid cooling chamber;

[0033] One end of all the liquid inlet channels is connected to the liquid inlet tank;

[0034] The bottom wall of the liquid cooling chamber is provided with a plurality of communication holes corresponding to all the liquid inlet channels, and the communication holes connect the liquid inlet channels with the leaching chamber.

[0035] In an optional embodiment, the side walls of the liquid inlet boxes of all the liquid cooling tanks are provided with liquid discharge ports;

[0036] The immersion liquid cooling system also includes a liquid discharge pipe and a valve;

[0037] The liquid discharge pipe is connected to the liquid storage tank, and the liquid discharge ports of the liquid cooling tanks arranged on the same support frame are all connected to the liquid discharge pipe;

[0038] The valve is arranged on the liquid discharge pipeline;

[0039] A communication port is provided at the top of the liquid discharge pipe connected to the liquid cooling tank provided at the top of the support frame;

[0040] The communication port is configured to communicate with the external environment.

[0041] In an optional embodiment, the tapping pipeline is provided with a plurality of branch pipelines;

[0042] The plurality of branch pipes are connected one by one to the liquid discharge ports of the liquid cooling tanks arranged on the same support frame;

[0043] Each branch pipeline is provided with a valve;

[0044] The top end of the liquid discharge pipe extends to connect with the liquid discharge pipe provided with the communication port;

[0045] The immersion liquid cooling system also includes a container and a liquid supply assembly;

[0046] The support frame is arranged in the container, and the liquid storage tank is arranged at the lowest layer of the support frame and supported on the bottom plate of the container;

[0047] The liquid supply assembly is arranged in the container and is connected between the liquid inlet and the liquid outlet through a pipeline to drive the circulation of the coolant.

[0048] The beneficial effects of the immersion liquid cooling system provided by the embodiment of the present invention include, for example:

[0049] The present application sets a liquid storage tank, and connects the liquid outlet of the liquid cooling tank to the liquid storage tank through a liquid discharge pipe, so that the liquid supply component is connected between the liquid discharge port of the liquid storage tank and the liquid inlet of the immersion tank. The liquid storage tank can store excess coolant, and the liquid storage tank can also separate bubbles in the refluxed coolant and cool the refluxed coolant. The most important thing is that the liquid supply component extracts the coolant in the liquid storage tank, which can make the flow of the coolant more stable during the circulation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0051] Figure 1 A schematic diagram of an immersion liquid cooling system provided by an embodiment of the present invention;

[0052] Figure 2 A schematic diagram of the layout of a liquid storage tank, a liquid cooling tank and a support frame of an immersion liquid cooling system provided in an embodiment of the present invention;

[0053] Figure 3 A schematic diagram of a liquid cooling tank of an immersion liquid cooling system provided in an embodiment of the present invention;

[0054] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0055] Figure 5 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 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0057] Figure 7 A schematic cross-sectional view of a liquid cooling tank at a liquid inlet tank of an immersion liquid cooling system provided in an embodiment of the present invention;

[0058] Figure 8 A schematic diagram of the structure of a liquid storage tank of an immersion liquid cooling system provided in an embodiment of the present invention;

[0059] Fig. 9 A schematic cross-sectional view of a liquid storage tank of an immersion liquid cooling system provided in an embodiment of the present invention;

[0060] Fig.10 A schematic diagram of a bottom cross-sectional structure of a liquid storage tank of an immersion liquid cooling system provided in an embodiment of the present invention;

[0061] Fig.11 A schematic diagram of the structure of an immersion liquid cooling system in a container provided by an embodiment of the present invention.

[0062] Icons: 100-immersion liquid cooling system; 110-liquid cooling tank; 111-accommodation space; 112-liquid inlet; 113-liquid outlet; 114-tank body; 115-partitioning plate; 116-liquid cooling chamber; 117-leaching chamber; 118-liquid inlet box; 119-liquid inlet channel; 120-connecting hole; 121-first diverter plate; 122-second diverter plate; 123-partitioning member; 124-liquid cooling area; 125-overflow tank; 126-overflow port; 127-through hole; 128-drainage pipe; 129-interceptor plate ;131-liquid outlet box;133-diversion port;134-liquid discharge port;135-liquid discharge pipe;136-valve;137-branch pipe;150-liquid storage tank;151-liquid storage space;153-reflux port;155-liquid discharge port;157-connecting pipe;159-elbow;161-liquid suction pipe;163-liquid suction hole;170-support frame;180-liquid discharge pipe;190-liquid supply component;191-pump;193-heat exchanger;195-bypass pipe;201-container;203-fan. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0064] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] 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, further definition and explanation thereof is not required in subsequent drawings.

[0066] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0067] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0068] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0069] Example

[0070] Please refer to Figures 1 to 10 The present embodiment provides an immersion liquid cooling system 100, comprising a liquid cooling tank 110, a liquid storage tank 150, a liquid drain pipe 180 and a liquid supply assembly 190. The liquid cooling tank 110 has a receiving space 111 and is provided with a liquid inlet 112 and a liquid outlet 113 connected to the receiving space 111. The liquid inlet 112 is configured to be connected to the liquid supply assembly 190 to transport the cooled coolant to the receiving space 111. The receiving space 111 is used to receive the coolant, and the servers placed in the receiving space 111 and the electronic equipment in the data center waiting for heat exchange can be partially or completely immersed in the coolant. The liquid storage tank 150 has a liquid storage space 151 and a reflux port 153 and a liquid drain port 155 connected to the liquid storage space 151. The liquid storage tank 150 is used to store excess cooling medium. The liquid drain port 155 is configured to be connected to the liquid supply assembly 190 so that the liquid supply assembly 190 absorbs the coolant in the liquid storage tank 150. The drain pipe 180 is connected between the liquid inlet 112 and the reflux port 153, and the coolant discharged from the liquid cooling tank 110 after heat exchange can flow back into the liquid storage tank 150 through the drain pipe 180. The liquid supply component 190 is connected between the liquid inlet 112 and the reflux port 153 through a pipe to promote the circulation of the coolant.

[0071] In this embodiment, a liquid storage tank 150 is provided, and the liquid outlet 113 of the liquid cooling tank 110 is connected to the liquid storage tank 150 through a liquid discharge pipe 180, so that the liquid supply component 190 is connected between the liquid discharge port 155 of the liquid storage tank 150 and the liquid inlet 112 of the immersion tank. The liquid storage tank 150 can store excess coolant, separate bubbles in the refluxed coolant, and cool the coolant. Most importantly, the liquid supply component 190 extracts the coolant in the liquid storage tank 150, which can make the flow of the coolant more stable during the circulation process.

[0072] The principle of bubble separation is that the flow rate of the coolant flowing back to the liquid storage tank 150 through the drainage pipe 180 will be slowed down, so that the bubbles in the coolant will float up under the action of buoyancy and pressure difference, while the bubbles floating on the surface of the coolant in the liquid storage tank 150 will not participate in the circulation, so that the heat exchange performance of the coolant can be better achieved. The principle that the liquid storage tank 150 cools down the coolant that flows back is that the coolant that flows back due to the coolant with a lower temperature stored in the liquid storage tank 150 or the coolant that has flowed back to the liquid storage tank 150 before will mix with the original coolant in the liquid storage tank 150, so that cooling can be achieved. In other words, after the heat exchange is completed, the coolant flows back to the liquid storage tank 150 and mixes with the excess coolant in the liquid storage tank 150, so as to achieve a one-time cooling, so that heat exchange can be better achieved.

[0073] In this embodiment, the immersion liquid cooling system 100 further includes a support frame 170, and the liquid cooling tank 110 is disposed above the liquid storage tank 150 through the support frame 170. In this embodiment, the support frame 170 is provided, and the liquid cooling tank 110 is disposed on the top of the liquid storage tank 150 by using the support frame 170, so that the liquid storage tank 150 and the support frame 170 occupy less space, so that they can be more conveniently integrated in the container 201, and a height difference is formed between the liquid cooling tank 110 and the liquid storage tank 150, so that the coolant flowing out of the liquid outlet 113 of the liquid cooling tank 110 can directly flow back into the liquid storage tank 150 under the action of gravity, and it can be achieved without the power of the liquid supply component 190.

[0074] In this embodiment, one end of the liquid storage tank 150 partially extends out of the end of the liquid cooling tank 110 in the length direction. The reflux port 153 is disposed on the top wall of the extended portion of the liquid storage tank 150. The liquid outlet 113 is disposed on the side of the liquid cooling tank 110 corresponding to the side where the liquid storage tank 150 extends out of the liquid cooling tank 110.

[0075] In this embodiment, one end of the liquid storage tank 150 in the length direction is partially extended out of one side of the liquid cooling tank 110 , and the liquid inlet 112 is correspondingly arranged on the same side, which facilitates the arrangement of the liquid discharge pipe 180 .

[0076] Specifically, the length of the liquid storage tank 150 is greater than the length of the liquid cooling tank 110. Thus, a portion of the liquid storage tank 150 located below the liquid cooling tank 110 will extend in the length direction. The liquid discharge pipe 180 is arranged above the liquid storage tank 150, which is convenient for connection and can save pipe length.

[0077] In this embodiment, there are at least two liquid cooling tanks 110, the support frame 170 is provided with multiple layers, the liquid storage tank 150 is provided at the lowest layer of the support frame 170, and the liquid cooling tanks 110 are provided one by one in each layer of the support frame 170. The liquid outlets 113 of all the liquid cooling tanks 110 are provided on the same side. There are multiple drainage pipes 180, and the extended portion of the liquid storage tank 150 is provided with multiple reflux ports 153. The multiple drainage pipes 180 are connected to the liquid outlets 113 and the reflux ports 153 one by one.

[0078] In this embodiment, the liquid inlets 112 of the liquid cooling tanks 110 arranged on the same support frame 170 are arranged on the same side, so that the connection can be convenient. Each liquid cooling tank 110 is connected to the liquid storage tank 150 through the drainage pipe 180 in a one-to-one correspondence, which is convenient for connection and can avoid affecting the drainage efficiency. In particular, it can avoid that the coolant discharged by the upper liquid cooling tank 110 affects the drainage of the lower liquid cooling tank 110.

[0079] Of course, in some other embodiments of the present application, the liquid outlets 113 of all the liquid cooling tanks 110 arranged on the same support frame 170 can be connected in sequence through a liquid discharge pipe 180 and then connected to the liquid discharge port 155 .

[0080] Please refer to Figures 1 to 10 In this embodiment, there are at least two support frames 170 and at least two liquid storage tanks 150. All liquid storage tanks 150 are arranged on the bottom layer of all support frames 170 in a one-to-one correspondence. A connecting pipe 157 is connected between any two adjacent liquid storage tanks 150, and the connecting pipe 157 is configured to balance the liquid level between the liquid storage tanks 150.

[0081] In this embodiment, a plurality of liquid storage tanks 150 are connected by connecting pipes 157 , so that the liquid storage tanks 150 are connected to form connecting vessels, thereby ensuring that the liquid levels in all the liquid storage tanks 150 are the same.

[0082] In this embodiment, an elbow 159 is provided in the liquid storage tank 150 corresponding to the reflux port 153 , one end of the elbow 159 is connected to the reflux port 153 , and the other end of the elbow 159 extends toward one side in the length direction of the liquid storage tank 150 .

[0083] In this embodiment, an elbow 159 is provided in the liquid storage tank 150. The elbow 159 allows the coolant in the liquid storage tank 150 from the discharge pipe 180 to pass directly into the liquid below the liquid surface of the coolant in the liquid storage tank 150. This can avoid the impact on the liquid surface to generate bubbles that affect the heat exchange efficiency. Secondly, it can also avoid direct impact with the coolant in the liquid storage tank 150, thereby reducing the generation of bubbles. Secondly, the other end of the elbow 159 is extended toward one side of the length direction of the liquid storage tank 150, so that the vertical impact of the coolant on the liquid surface can be converted to flow in the length direction, so that the coolant discharged from the discharge pipe 180 into the liquid storage tank 150 can be better mixed with the original coolant in the liquid storage tank 150 to achieve cooling.

[0084] Furthermore, the opening of the lower end of the elbow 159 is toward the end of the non-extended portion, and the drain port 155 is provided at the end of the extended portion of the liquid storage tank 150. In this way, the coolant flowing out of the elbow 159 will drive the coolant in the liquid storage tank 150 to flow toward the non-extended end, thereby flushing the bubbles floating on the surface away from the drain port 155, so that the bubbles will not flow out from the drain port 155, thereby improving the heat exchange efficiency at the rear.

[0085] Please refer to Figures 1 to 10 In this embodiment, a liquid suction pipe 161 is provided in the liquid storage tank 150 along the length direction of the liquid suction pipe 161, one end of the liquid suction pipe 161 is connected to the liquid discharge port 155, and the other end of the liquid suction pipe 161 is closed. A plurality of liquid suction holes 163 are provided on one side of the liquid suction pipe 161 near the bottom of the liquid storage tank 150.

[0086] In this way, after the coolant enters the internal space of the liquid storage tank 150 from the reflux port 153, a suction pipe 161 is arranged in the internal space of the liquid storage tank 150. Since a plurality of suction holes 163 are arranged on the side of the suction pipe 161 facing the bottom wall of the liquid storage tank 150, the position of the suction holes 163 will be kept below the liquid level of the coolant during the circulation of the coolant. The coolant is sucked to the discharge port 155 through the suction holes 163, thereby avoiding the entrainment of air to form bubbles, and filtering the bubbles to improve the emulsification of the coolant, thereby ensuring the heat exchange efficiency.

[0087] Optionally, the liquid suction pipe 161 includes a connecting pipe and a plurality of liquid suction branches connected to the connecting pipe; one end of the connecting pipe is connected to the liquid discharge port 155, and the other end of the connecting pipe is closed. One end of the liquid suction branch away from the connecting pipe is closed, and a plurality of liquid suction holes 163 are provided on one side of the bottom wall of the liquid suction pipe 161 facing the liquid storage tank 150, so that the coolant at various positions in the liquid storage tank 150 can be sucked into the connecting pipe through each liquid suction pipe 161 and then discharged from the liquid discharge port 155. The provision of the liquid suction holes 163 can filter bubbles to prevent them from being sucked into the liquid suction pipe 161.

[0088] Specifically, the drain port 155 is located at one side of the liquid storage tank 150 in the length direction, and the connecting pipe extends along the length direction of the liquid storage tank 150. The suction pipes 161 are arranged at intervals along the length direction of the liquid storage tank 150, and the length direction of the suction pipes 161 forms an angle with the length direction of the liquid storage tank 150, so that the suction pipes 161 are distributed more evenly to evenly suck the coolant in various places of the internal space of the liquid storage tank 150.

[0089] The two opposite side walls of the liquid storage tank 150 in the width direction are respectively the first side wall and the second side wall. The connecting pipe is close to the first side wall and away from the second side wall. All the liquid suction pipes 161 are located on the side of the connecting pipe close to the second side wall, so that each liquid suction pipe 161 can be evenly distributed in the central area of ​​the liquid storage tank 150, so as to save the materials and costs of the liquid suction pipes 161.

[0090] Of course, the connecting pipe may also be located in the center of the liquid storage tank 150, and a plurality of liquid suction pipes 161 may be provided on both sides of the connecting pipe.

[0091] Please refer to Figures 1 to 10 In this embodiment, the pipette 161 further includes a support portion, and a support portion is provided between the connecting pipe and the bottom wall of the liquid storage tank 150. There is also a support portion between the pipette 161 and the bottom wall of the liquid storage tank 150. Thus, the connecting pipe and the pipette 161 are supported by the support portion, thereby improving the fixing stability of the pipette 161 in the liquid storage tank 150.

[0092] Optionally, all the suction holes 163 on each suction tube 161 are divided into at least two rows parallel to the circumference of the suction tube 161, and the suction holes 163 in two adjacent rows are staggered along the length direction of the suction tube 161, so that each suction tube 161 can suck coolant at a larger flow rate.

[0093] Of course, in some embodiments, the suction tube 161 can also be a serpentine pipe with multiple curved sections, and a plurality of suction holes 163 are correspondingly arranged on the bottom side.

[0094] Secondly, a liquid level display is provided on the side wall of the liquid storage tank 150. The liquid level display can be a transparent tubular element with scale lines, which is arranged vertically and the bottom end is connected to the internal space of the liquid cooling tank 110. Such a liquid level display is used to display the coolant level in the liquid storage tank 150 in real time, which is convenient for users to read.

[0095] Please refer to Figures 1 to 10In this embodiment, the liquid cooling tank 110 includes a tank body 114 and a partition plate 115. The accommodating space 111 is disposed in the tank body 114. The partition plate 115 is disposed in the tank body 114 along the length direction of the tank body 114, and divides the accommodating space 111 into a liquid cooling chamber 116 and an leaching chamber 117 that are independent of each other. The liquid inlet 112 is communicated with the liquid cooling chamber 116, and the liquid discharge port 155 is disposed on the side of the tank body 114 where the liquid storage tank 150 extends, and the liquid discharge port 155 is communicated with the leaching chamber 117. The cooling liquid in the liquid cooling chamber 116 can overflow from the top of the partition plate 115 to the leaching chamber 117.

[0096] In this embodiment, a partition plate 115 is provided in the tank body 114, and the accommodating space 111 of the tank body 114 is divided into a liquid cooling chamber 116 and an leaching chamber 117 by the partition plate 115. Servers, data centers, etc. can be immersed in the liquid cooling chamber 116. The cooling liquid in the liquid cooling chamber 116 overflows to the leaching chamber 117 by overflow, so that the cooling liquid in the liquid cooling chamber 116 can be maintained at a set liquid level, thereby ensuring the heat exchange requirement.

[0097] In an optional embodiment, the liquid cooling tank 110 further includes a liquid inlet box 118. The liquid inlet box 118 is disposed on the side of the tank body 114 where the liquid storage tank 150 extends, and the liquid inlet 112 is disposed on the liquid inlet box 118. A plurality of liquid inlet channels 119 are formed inside the bottom wall of the liquid cooling chamber 116, and the plurality of liquid inlet channels 119 are disposed side by side and extend along the length direction of the liquid cooling chamber 116. One end of all the liquid inlet channels 119 is connected to the liquid inlet box 118. The bottom wall of the liquid cooling chamber 116 is provided with a plurality of connecting holes 120 corresponding to all the liquid inlet channels 119, and the connecting holes 120 connect the liquid inlet channels 119 with the leaching chamber 117.

[0098] In this way, by setting a liquid inlet channel 119 at the bottom of the liquid cooling chamber 116 and setting a plurality of connecting holes 120, the liquid inlet channel 119 can be used to evenly transport the cooling liquid to various places in the liquid cooling chamber 116. Since the diameter of the connecting hole 120 is small, when the cooling liquid at various places in the liquid inlet channel 119 enters the liquid cooling chamber 116 from each connecting hole 120, it will form multiple cooling liquid jets with similar flow rates and speeds due to the reduced flow area, so that the servers and other electronic equipment at various positions in the liquid cooling chamber 116 can get more equal cooling liquid injection opportunities when working, so that the heat dissipation and cooling effects of various servers and other electronic equipment are close to the same, so as to reduce the risk of causing the local server to stop working due to high temperature. Secondly, this method can better realize the bottom-in and top-out liquid supply, so as to facilitate sufficient heat exchange.

[0099] In some embodiments of the present application, a plurality of rows of square tubes are disposed at the bottom of the liquid cooling chamber 116, and the chambers inside the square tubes form a liquid inlet channel 119. A plurality of communication holes 120 are disposed on the square tubes.

[0100] Of course, in some other embodiments of the present application, the bottom plate of the liquid cooling cavity 116 can also be set to be a double-layer hollow plate. A plurality of evenly distributed ribs are set in the hollow cavity between the double-layer plates to divide the hollow cavity into a plurality of liquid inlet cavities. A plurality of connecting holes 120 are set on the top plate. The ribs can achieve support and achieve the effect of a separated flow channel.

[0101] It should be noted that, in some embodiments, the ribs may not be provided, so that the bottom of the liquid cooling chamber 116 is a double-layer hollow structure.

[0102] In this embodiment, the aperture of the connecting hole 120 gradually increases from the area of ​​the bottom plate of the liquid cooling chamber 116 close to the liquid inlet 112 to the area far from the liquid inlet 112. This is to match the phenomenon that the cooling liquid flow rate in the area close to the liquid inlet 112 in the liquid inlet chamber is large, while the cooling liquid flow rate in the area far from the liquid inlet 112 is small. In this way, the aperture of the connecting hole 120 in the area with large cooling liquid flow rate is small, and the aperture of the connecting hole 120 in the area with small cooling liquid flow rate is large. In this way, the cooling liquid flow rate and speed entering the liquid cooling chamber 116 from various places can be similar, so that the heat dissipation effect of each server can be more uniform.

[0103] Of course, in some embodiments, the apertures of all the connecting holes 120 may also be kept consistent to reduce the number of processing steps.

[0104] Specifically, a first diverter plate 121 and a second diverter plate 122 are further provided in the liquid inlet box 118. The liquid inlet 112 is provided at the top of the liquid inlet box 118, so that the cooling liquid flowing into the liquid inlet 112 can be divided into three streams through the first diverter plate 121 and the second diverter plate 122, one stream enters from the middle area of ​​the liquid inlet 112, that is, between the first diverter plate 121 and the second diverter plate 122, and the other two streams respectively lead to the edge areas of the liquid inlet 112, thereby ensuring the uniformity of the liquid inlet cavity at various locations in the width direction of the liquid cooling cavity 116, and further ensuring the consistency of the heat dissipation effect of various servers.

[0105] Please refer to Figures 1 to 10 In this embodiment, a plurality of partitions 123 are provided in the liquid cooling chamber 116, and each partition 123 is arranged in the liquid cooling chamber 116 at intervals along the length direction of the partition plate 115, and each partition 123 is connected to the partition plate 115 and the inner wall of the liquid cooling chamber 116 to divide the liquid cooling chamber 116 into a plurality of parallel liquid cooling zones 124. An overflow groove 125 is provided on the top of the partition 123. An overflow port 126 is provided at the end of the partition plate 115 corresponding to the overflow groove 125. The overflow groove 125 is connected to the overflow port 126, and the overflow groove 125 is connected to the liquid cooling zones 124 on both sides of the overflow groove 125 in the groove width direction.

[0106] In this way, by setting a plurality of partitions 123, the liquid cooling chamber 116 is divided into a plurality of liquid cooling zones 124 along the length direction, so that electronic hot spares with different power consumption can be placed in the liquid cooling zone 124, for example, a device with slightly higher heat generation is placed in some liquid cooling zones 124 close to the liquid inlet 112, and a device with slightly lower heat generation is placed in some liquid cooling zones 124 far away from the liquid inlet 112, so as to meet the heat exchange requirements of different devices. Among them, since the overflow groove 125 is set in the partition 123, the coolant in the liquid cooling zone 124 can overflow from the liquid cooling zone 124 to the overflow groove 125 on both sides of the length direction of the liquid cooling chamber 116. Compared with the single-sided overflow, the overflow groove 125 can increase the overflow area of ​​the coolant overflowing from the liquid cooling chamber 116 to the leaching chamber 117, so that the coolant can overflow into the leaching chamber 117 more smoothly.

[0107] The depth of the overflow groove 125 gradually increases along the direction from the end of the overflow groove 125 away from the partition plate 115 to the end connected to the overflow port 126, that is, along the groove length direction of the overflow groove 125. This can facilitate the coolant in the overflow groove 125 to flow into the leaching chamber 117 better, and such a setting can reduce the liquid difference, avoiding the splashing of the coolant falling from the overflow groove 125 to the leaching chamber 117 and the generation of bubbles.

[0108] The top edge of the partition plate 115 is flush with the top edge of the partition 123. The partition 123 also has a plurality of through holes 127 distributed on both sides of the overflow groove 125 in the groove width direction. In this way, the coolant flows from these through holes 127 in each liquid cooling zone 124 to the liquid cooling cavity 116, which can enhance heat dissipation, and the bubbles can flow toward the top surface better and disappear, thereby preventing the coolant from carrying more gas and accelerating the emulsification of the coolant, which affects the heat exchange efficiency and service life of the coolant.

[0109] Optionally, along the groove length direction of the overflow groove 125, the through holes 127 on both sides of the overflow groove 125 are staggered, so that the coolant flowing out of the through holes 127 on both sides can be prevented from colliding with each other, and the overflow groove 125 can be set narrower, thereby improving space utilization and reducing length. The through hole 127 is in the shape of an inverted triangle. The through hole 127 is set as an inverted triangle so that the surface tension of the coolant can be better broken, so that the coolant can better overflow from the through hole 127 into the overflow groove 125.

[0110] It should also be noted that a gap is provided between the bottom of the partition 123 and the bottom plate of the night cooling chamber, so that all the liquid cooling areas 124 can be connected.

[0111] Since the liquid outlet 113 is located on one side of the length direction of the leaching chamber 117, the flow rate of the coolant in the area closer to the liquid outlet 113 in the leaching chamber 117 is faster, and the flow rate of the coolant in the area farther from the liquid outlet 113 is slower. For this reason, in the present embodiment, the liquid cooling tank 110 also includes a drainage pipe 128, a intercepting plate 129 and a liquid outlet box 131. The liquid outlet box 131 is arranged on the side of the liquid cooling tank 110 where the liquid storage tank 150 extends out, and the liquid outlet 113 is arranged on the side wall of the liquid outlet box 131. The liquid outlet box 131 is connected to the leaching chamber 117. The liquid outlet box 131 is also provided with a confluence. The drainage pipe 128 is arranged on the outside of the side wall of the liquid cooling tank 110 used to form the leaching chamber 117. A diversion port 133 is arranged on the side wall of the liquid cooling tank 110 used to form the leaching chamber 117 in an area away from the liquid outlet 113. The diverter port 133 and the confluence port are both connected to the drainage aid pipe 128. The intercepting plate 129 is vertically arranged in the leaching chamber 117 and located between the diverter port 133 and the confluence port to force the coolant located on the side of the intercepting plate 129 away from the liquid outlet 113 to enter the confluence port.

[0112] In this way, by arranging an auxiliary drainage pipe 128 parallel to the leaching chamber 117 on the outside of the liquid cooling tank 110 and arranging a partition plate 115 in the leaching chamber 117, the leaching chamber 117 can be divided into two parts, front and rear, so that the coolant in the front area close to the liquid outlet 113 is directly discharged from the liquid outlet 113, while the coolant in the rear area cannot flow directly to the liquid outlet 113 due to the obstruction of the intercepting plate 129, and can only pass through the diversion port 133, the auxiliary drainage pipe 128 and the confluence port in turn to enter the front area close to the liquid outlet 113, thereby accelerating the flow rate of the coolant in the area of ​​the leaching chamber 117 far from the liquid outlet 113, so that the discharge of the coolant is smoother.

[0113] There is no specific limitation on the number of the intercepting plates 129, which may be one or more than two. When the number of the intercepting plates 129 is at least two, the intercepting plates 129 are spaced apart along the length direction of the intercepting plates 129, and diversion ports 133 are also distributed between two adjacent intercepting plates 129, thereby ensuring that the coolant entering the leaching chamber 117 from each overflow port 126 in the rear area of ​​the liquid cooling chamber 116 can be quickly gathered at the liquid outlet 113.

[0114] In the case of transportation, etc., it is necessary to drain the oil from the liquid cooling chamber 116. Since the coolant in the liquid cooling chamber 116 overflows by leaching, the coolant in the liquid cooling chamber 116 is also full when the system is shut down. This is inconvenient for inspection, cleaning and maintenance. In this embodiment, the side walls of the liquid inlet boxes 118 of all the liquid cooling tanks 110 are provided with drain ports 134. The immersion liquid cooling system 100 also includes a drain pipe 135 and a valve 136. The drain pipe 135 is connected to the liquid storage tank 150, and the drain ports 134 of the liquid cooling tanks 110 arranged on the same support frame 170 are all connected to the drain pipe 135. The valve 136 is arranged on the drain pipe 135. A connecting port is arranged at the top of the drain pipe connected to the liquid cooling tank 110 arranged at the top of the support frame 170. The connecting port is configured to communicate with the external environment.

[0115] In this embodiment, the drain pipe 135 and the valve 136 are provided, so that the valve 136 can be opened when the system is shut down for maintenance, and the coolant in the liquid cooling chamber 116 can be completely discharged through the liquid inlet box 118. The reason for providing the connecting port in the drain pipe 180 is that the system is generally in a shutdown state when discharging liquid, and the drain pipe will not be used. The connecting port is provided in the drain pipe 180 so that the layout is simpler. When the liquid cooling circulation system is in normal use, the valve 136 can be closed.

[0116] Please refer to Figures 1 to 10 In this embodiment, the discharge pipe 135 is provided with a plurality of branch pipes 137. The plurality of branch pipes 137 are connected to the discharge port 134 of the liquid cooling tank 110 provided on the same support frame 170 in a one-to-one correspondence. Each branch pipe 137 is provided with a valve 136. The top of the discharge pipe 135 extends to be connected to the discharge pipe 180 provided with a connecting port. In this way, even when the circulation valve 136 of the liquid cooling system is closed, the liquid storage tank 150 can be connected to the external environment, so that the bubbles in the coolant in the liquid storage tank 150 can float to the liquid surface.

[0117] In this embodiment, the liquid supply assembly 190 includes a pump 191 and a heat exchanger 193. The inlet of the pump 191 is connected to the discharge port 155 of the liquid storage tank 150 through a pipeline. The outlet of the pump 191 is connected to the inlet of the heat exchanger 193 through a pipeline. The outlet of the heat exchanger 193 is connected to the liquid inlet 112 of all the liquid cooling tanks 110 through a pipeline.

[0118] Please refer to Figures 1 to 11In this embodiment, the immersion liquid cooling system 100 further includes a container 201. The support frame 170 is disposed in the container 201, and the liquid storage tank 150 is disposed at the lowest layer of the support frame 170 and supported on the bottom plate of the container 201. The pump 191 and the pipeline are disposed in the container 201. The side wall of the container 201 is provided with an installation notch, and the heat exchanger 193 is installed in the installation notch, and the top wall of the container 201 is provided with a fixed notch, and the fixed notch is provided with a fan 203.

[0119] Secondly, the top of the heat exchanger 193 is provided with an exhaust port, which is connected to the liquid discharge pipe 135 through a bypass pipe 195. In this way, the bubbles formed in the heat exchanger 193 can be discharged into the liquid storage tank 150 through the bypass pipe 195, thereby preventing the bubbles from participating in the circulation and affecting the heat exchange efficiency.

[0120] In this embodiment, there are two support frames 170, which are arranged on both sides of the container 201 in the width direction and close to the side wall. An aisle is formed between the two support frames 170. Two liquid cooling tanks 110 are arranged on each support frame 170. Of course, in other embodiments of the present application, the number of support frames 170 and liquid cooling tanks 110 can also be set according to needs.

[0121] In summary, in this embodiment, a liquid storage tank 150 is provided, and the liquid outlet 113 of the liquid cooling tank 110 is connected to the liquid storage tank 150 through a drain pipe 180, so that the liquid supply component 190 is connected between the drain port 155 of the liquid storage tank 150 and the liquid inlet 112 of the immersion tank. The liquid storage tank 150 can store excess coolant and can separate bubbles in the refluxed coolant. The most important thing is that the liquid supply component 190 extracts the coolant in the liquid storage tank 150, and the liquid storage tank 150 stores a large amount of coolant, and can continue to store coolant, so that the flow rate of the coolant can be more stable during the circulation process. Secondly, after the heat exchange is completed, the coolant will flow back into the liquid storage tank 150 and mix with the excess coolant in the liquid storage tank 150, thereby achieving a one-time cooling, so that the heat exchange can be better achieved.

[0122] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An immersion liquid cooling system, characterized in that: include: A liquid cooling tank (110), the liquid cooling tank (110) having a containing space (111) and a liquid inlet (112) and a liquid outlet (113) in communication with the containing space (111), the liquid inlet (112) being configured to be connected to a liquid supply assembly (190) so as to transport cooled cooling liquid into the containing space (111); a liquid storage tank (150), the liquid storage tank (150) comprising a liquid storage space (151) and a reflux port (153) and a liquid discharge port (155) in communication with the liquid storage space (151), the liquid storage tank (150) being used to store excess cooling medium, the liquid discharge port (155) being configured to be connected to a liquid supply component (190) so that the liquid supply component (190) absorbs the cooling liquid in the liquid storage tank (150); and, A liquid discharge pipe (180), wherein the liquid discharge pipe (180) is connected between the liquid inlet (112) and the reflux port (153), and the coolant discharged from the liquid cooling tank (110) after heat exchange can flow back into the liquid storage tank (150) through the liquid discharge pipe (180).

2. The immersion liquid cooling system according to claim 1, characterized in that: The immersion liquid cooling system further comprises a support frame (170), and the liquid cooling tank (110) is arranged above the liquid storage tank (150) through the support frame (170); One end of the liquid storage tank (150) partially extends out of the end of the liquid cooling tank (110) in the length direction; The reflux port (153) is arranged on the top wall of the extended portion of the liquid storage tank (150); The liquid outlet (113) is arranged on a side of the liquid cooling tank (110) corresponding to the liquid storage tank (150) extending out of the liquid cooling tank (110).

3. The immersion liquid cooling system according to claim 2, characterized in that: There are at least two liquid cooling tanks (110), the support frame (170) is provided with multiple layers, the liquid storage tank (150) is provided at the lowest layer of the support frame (170), and the liquid cooling tanks (110) are provided one by one in each layer of the support frame (170); The liquid outlets (113) of all the liquid cooling tanks (110) are arranged on the same side; There are a plurality of the liquid discharge pipes (180), and the extended portion of the liquid storage tank (150) is provided with a plurality of the reflux ports (153); The plurality of liquid discharge pipes (180) are connected to the liquid outlet (113) and the reflux port (153) in a one-to-one correspondence.

4. The immersion liquid cooling system according to claim 3, characterized in that: The number of the support frames (170) is at least two, and the number of the liquid storage tanks (150) is at least two; All of the liquid storage tanks (150) are arranged in a one-to-one correspondence on the bottom layers of all of the support frames (170); A connecting pipe (157) is connected between any two adjacent liquid storage tanks (150), and the connecting pipe (157) is used to balance the liquid level between the liquid storage tanks (150).

5. The immersion liquid cooling system according to claim 3 or 4, characterized in that: An elbow (159) is provided in the liquid storage tank (150) corresponding to the reflux port (153); one end of the elbow (159) is connected to the reflux port (153); and the other end of the elbow (159) extends toward one side in the length direction of the liquid storage tank (150).

6. The immersion liquid cooling system according to claim 3 or 4, characterized in that: The liquid discharge port (155) is arranged at one end of the liquid storage tank (150); A liquid suction pipe (161) is arranged inside the liquid storage tank (150) along the length direction of the liquid storage tank (150), one end of the liquid suction pipe (161) is connected to the liquid discharge port (155), and the other end of the liquid suction pipe (161) is closed; A plurality of liquid suction holes (163) are provided on one side of the liquid suction pipe (161) close to the bottom of the liquid storage tank (150).

7. The immersion liquid cooling system according to claim 3 or 4, characterized in that: The liquid cooling tank (110) comprises a tank body (114) and a partition plate (115); The accommodating space (111) is arranged on the trough body (114), and the partition is arranged in the accommodating space (111) along the length direction of the trough body (114), and divides the accommodating space (111) into a liquid cooling chamber (116) and an leaching chamber (117) which are independent of each other; The liquid inlet (112) is in communication with the liquid cooling chamber (116), the liquid discharge port (155) is arranged on the side of the tank (114) where the liquid storage tank (150) extends out, and the liquid discharge port (155) is in communication with the leaching chamber (117); The cooling liquid in the liquid cooling chamber (116) can overflow from the top of the partition plate (115) into the leaching chamber (117).

8. The immersion liquid cooling system according to claim 7, characterized in that: The liquid cooling tank (110) further includes a liquid inlet box (118); The liquid inlet box (118) is arranged on a side of the tank body (114) where the liquid storage box (150) protrudes, and the liquid inlet (112) is arranged on the liquid inlet box (118); A plurality of liquid inlet channels (119) are formed inside the bottom wall of the liquid cooling chamber (116), and the plurality of liquid inlet channels (119) are arranged side by side and extend along the length direction of the liquid cooling chamber (116); One end of all the liquid inlet channels (119) is connected to the liquid inlet box (118); The bottom wall of the liquid cooling chamber (116) is provided with a plurality of communication holes (120) corresponding to all the liquid inlet channels (119), and the communication holes (120) connect the liquid inlet channels (119) with the leaching chamber (117).

9. The immersion liquid cooling system according to claim 8, characterized in that: The side walls of the liquid inlet boxes (118) of all the liquid cooling tanks (110) are provided with liquid discharge ports (134); The immersion liquid cooling system also includes a liquid discharge pipeline (135) and a valve (136); The liquid discharge pipe (135) is in communication with the liquid storage tank (150), and the liquid discharge ports (134) of the liquid cooling tank (110) arranged on the same support frame (170) are all in communication with the liquid discharge pipe (135); The valve (136) is arranged on the liquid discharge pipe (135); A communication port is provided at the top of the liquid discharge pipe (180) connected to the liquid cooling tank (110) provided at the top of the support frame (170); The communication port is configured to communicate with the external environment.

10. The immersion liquid cooling system according to claim 9, characterized in that: The liquid discharge pipeline (135) is provided with a plurality of branch pipelines (137); A plurality of branch pipes (137) are connected one-to-one with the liquid discharge ports (134) of the liquid cooling tanks (110) disposed on the same support frame (170); Each of the branch pipes (137) is provided with the valve (136); The top end of the liquid discharge pipe (135) extends to connect with the liquid discharge pipe (180) provided with the communication port; The immersion liquid cooling system further comprises a container (201) and a liquid supply assembly (190); The support frame (170) is arranged in the container (201), and the liquid storage tank (150) is arranged at the bottom layer of the support frame (170) and supported on the bottom plate of the container (201); The liquid supply assembly (190) is disposed in the container (201) and is connected between the liquid inlet (112) and the liquid outlet (155) through the pipeline to drive the circulation of the coolant.

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