Immersed liquid cooling device

Abstract

The utility model discloses an immersion type liquid cooling device relates to liquid cooling equipment technical field, the immersion type liquid cooling device includes box body and liquid level balance subassembly, the box body is equipped with cooling chamber and liquid storage chamber at interval inside, the upper end of cooling chamber is open and is used for the immersion placement of hardware equipment, the cooling chamber is also used for communicating external cold source, and the liquid level balance subassembly is equipped with the liquid level balance subassembly. The liquid storage cavity communicates with the cooling cavity and is used for storing cooling liquid; the cooling cavity communicates with the liquid storage cavity through the liquid level balance assembly, and the liquid level balance assembly is used for conveying the cooling liquid in the cooling cavity to the liquid storage cavity or conveying the cooling liquid in the liquid storage cavity to the cooling cavity. When the number of the servers in the cooling cavity is increased or decreased, the cooling liquid is transferred between the cooling cavity and the liquid storage cavity through the liquid level balance assembly, and therefore the liquid level height of the cooling cavity is adjusted and controlled. Therefore, the liquid level is dynamically balanced according to the number of the servers in the cooling cavity, manual liquid supplementing or liquid discharging is not needed, the operation process is simple, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling equipment technology, and in particular to an immersion liquid cooling device. Background Technology

[0002] In the field of single-phase immersion liquid cooling, a tank is a container used to hold servers and coolant. To ensure the overall heat dissipation of the servers, they need to be completely submerged in the coolant. Typically, a tank can hold several or even dozens of servers. When the number of servers in the tank changes, manual replenishment or draining of coolant is required to maintain a balanced liquid level. This process is time-consuming, labor-intensive, and wastes coolant, thus increasing overall maintenance costs. Utility Model Content

[0003] The main purpose of this invention is to propose an immersion liquid cooling device, which aims to balance and adjust the immersion liquid level of structural servers. The liquid level can be dynamically balanced according to different numbers of servers, thereby reducing operation and maintenance costs.

[0004] To achieve the above objectives, the present invention proposes an immersion liquid cooling device for cooling hardware equipment, the immersion liquid cooling device comprising:

[0005] The enclosure includes a cooling chamber and a liquid storage chamber spaced apart inside. The upper end of the cooling chamber is open for immersing hardware equipment. The cooling chamber is also connected to an external cold source. The liquid storage chamber is connected to the cooling chamber and is used to store coolant.

[0006] A liquid level balancing assembly is provided, wherein the cooling chamber is connected to the liquid storage chamber via the liquid level balancing assembly, and the liquid level balancing assembly is used to transport the coolant in the cooling chamber to the liquid storage chamber or to transport the coolant in the liquid storage chamber to the cooling chamber.

[0007] In one embodiment, the liquid level balancing assembly includes:

[0008] The piping structure has two flow paths connecting the cooling chamber and the liquid storage chamber, and the flow directions of the two flow paths are opposite.

[0009] A valve assembly for controlling the opening or closing of the two flow paths; and,

[0010] The pump body is located on the pipeline structure and is connected to both of the flow paths. It is used to pump liquid from the cooling chamber to the storage chamber or from the storage chamber to the cooling chamber when one of the flow paths is open.

[0011] In one embodiment, the piping structure includes:

[0012] A first connecting pipe, the two ends of which are respectively connected to the cooling chamber and the liquid storage chamber;

[0013] A second connecting pipe, both ends of which are connected to the first connecting pipe, so as to be connected in parallel with the middle section of the first connecting pipe; and,

[0014] The third connecting pipe has its two ends connected to the middle sections of the second connecting pipe and the first connecting pipe, respectively, so as to divide the middle section of the second connecting pipe into a first section near the cooling chamber and a second section near the liquid storage chamber, and divide the first connecting pipe into a third section near the cooling chamber and a fourth section near the liquid storage chamber.

[0015] The pump body is mounted on the third connecting pipe, and the valve assembly is mounted on the first connecting pipe and the second connecting pipe;

[0016] The first segment, the third connecting pipe, and the fourth segment together form one of the flow paths;

[0017] The second segment, the third connecting pipe, and the third segment together form another flow path.

[0018] In one embodiment, the valve assembly includes a plurality of solenoid valves;

[0019] The solenoid valve is installed on the first segment, the second segment, the third segment and the fourth segment.

[0020] In one embodiment, the immersion liquid cooling device further includes:

[0021] Two liquid level sensors are provided, both of which are located inside the cooling chamber and are spaced apart in the vertical direction.

[0022] A control component, electrically connected to the plurality of solenoid valves and the two level sensors, is used to control the opening and closing of each of the solenoid valves based on the electrical signals from the two level sensors.

[0023] In one embodiment, the liquid level balancing assembly further includes:

[0024] A housing, the inner cavity of which accommodates the piping structure, the valve assembly, and the pump body; and,

[0025] Multiple rollers are disposed at the bottom of the housing and are arranged at intervals along the circumference of the housing.

[0026] In one embodiment, the liquid level balancing component is connected to the cooling chamber and / or the liquid storage chamber via a guide pipe.

[0027] In one embodiment, a control valve is provided on the guide pipe.

[0028] In one embodiment, the housing includes:

[0029] The main body has an open-top receiving cavity, within which a partition is provided to divide the receiving cavity into a cooling cavity and a liquid storage cavity formed horizontally spaced apart; and,

[0030] A cover plate is provided on the upper end of the main body, which is open to accommodate the cavity.

[0031] In one embodiment, a coolant outlet is provided on the upper side of the cooling chamber, and a coolant inlet is provided on the lower side of the cooling chamber. Both the coolant inlet and the coolant outlet are used to connect to an external cold source.

[0032] In this invention, the cooling chamber circulates coolant through an external cold source, dissipating heat from the servers submerged within. As the number of servers in the cooling chamber increases, the coolant level rises. A level balancing component then transfers coolant from the cooling chamber to the storage chamber, thus regulating the coolant level. Conversely, as the number of servers decreases, the coolant level drops. The same method works by transferring coolant from the storage chamber to the cooling chamber, again regulating the coolant level. This dynamic balance of coolant level based on the number of servers eliminates the need for manual replenishment or drainage, simplifying operation and reducing maintenance costs. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0034] Figure 1 A schematic diagram of an embodiment of the immersion liquid cooling device provided by this utility model;

[0035] Figure 2 for Figure 1 Schematic diagram of the liquid level balancing component (drainage mode);

[0036] Figure 3 for Figure 1 A schematic diagram of the liquid level balancing component (liquid replenishment mode).

[0037] Explanation of icon numbers:

[0038] 100. Immersion liquid cooling device; 1. Housing; 11. Cooling chamber; 111. Coolant outlet pipe; 112. Coolant inlet pipe; 12. Storage chamber; 121. Outlet; 13. Main body; 131. Partition; 14. Cover plate; 2. Liquid level balancing component; 21. Piping structure; 211. First connecting pipe; 212. Second connecting pipe; 213. Third connecting pipe; 22. Solenoid valve; 23. Pump body; 24. Housing; 25. Roller; 3. Liquid level sensor; 4. Control component; 5. Guide pipe; 6. Control valve; 200. Server.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] In the field of single-phase immersion liquid cooling, a tank is a container used to hold servers and coolant. To ensure the overall heat dissipation of the servers, they need to be completely submerged in the coolant. Typically, a tank can hold several or even dozens of servers. When the number of servers in the tank changes, manual replenishment or draining of coolant is required to maintain a balanced liquid level. This process is time-consuming, labor-intensive, and wastes coolant, thus increasing overall maintenance costs.

[0044] In existing liquid-cooled dynamic control systems, the control module executes a preset air pressure adjustment or liquid level adjustment action based on the larger of the air pressure deviation ratio and the liquid level deviation ratio of the immersion tank. However, the number of servers remains unchanged, and the gaseous adjustment is mainly for maintaining the system's operating status.

[0045] Therefore, this utility model is designed for situations where the number of servers may need to be increased or decreased during use, thus requiring the maintenance of liquid level balance.

[0046] Please refer to Figure 1 The immersion liquid cooling device 100 includes a housing 1 and a liquid level balancing assembly 2. The housing 1 has a cooling chamber 11 and a liquid storage chamber 12 arranged at intervals inside. The upper end of the cooling chamber 11 is open for immersing hardware equipment. The cooling chamber 11 is also used to connect to an external cold source. The liquid storage chamber 12 is connected to the cooling chamber 11 and is used to store coolant. The cooling chamber 11 is connected to the liquid storage chamber 12 through the liquid level balancing assembly 2. The liquid level balancing assembly 2 is used to transport the coolant in the cooling chamber 11 to the liquid storage chamber 12 or to transport the coolant in the liquid storage chamber 12 to the cooling chamber 11.

[0047] In this invention, the cooling chamber 11 is connected to an external cold source, allowing coolant to circulate and dissipate heat from the servers submerged within it. As the number of servers in the cooling chamber 11 increases, the coolant level rises. At this time, the coolant in the cooling chamber 11 is transferred to the storage chamber 12 via the liquid level balancing component 2, thereby regulating the liquid level in the cooling chamber 11. Conversely, as the number of servers in the cooling chamber 11 decreases, the coolant level drops. At this time, the coolant in the storage chamber 12 is transferred to the cooling chamber 11 via the liquid level balancing component 2, thereby regulating the liquid level in the cooling chamber 11. This dynamically balances the liquid level according to the number of servers in the cooling chamber 11, eliminating the need for manual replenishment or drainage. The operation is simple, reducing maintenance costs.

[0048] It should be noted that the coolant in the storage chamber 12 can be pre-stored or stored after being supplied with coolant from the cooling chamber 11. An outlet 121 can be provided at the bottom of the storage chamber 12, allowing the coolant in the storage chamber 12 to be discharged to the outside. That is, if excess coolant in the cooling chamber 11 exceeds the volume of the storage chamber 12, the liquid can be discharged and collected through the outlet 121 of the storage chamber 12, making operation convenient.

[0049] In order to regulate the coolant, in some embodiments, the liquid level balancing component 2 can be provided with two independent pump body 23 pipelines, and one-way valves are provided on the two pipelines, so that the two pipelines can respectively realize the one-way liquid delivery function, realizing the function of delivering the coolant in the cooling chamber 11 to the storage chamber 12 or delivering the coolant in the storage chamber 12 to the cooling chamber 11.

[0050] It should be understood that the cooling chamber 11 and the liquid storage chamber 12 can be spaced apart vertically or horizontally. When the cooling chamber 11 and the liquid storage chamber 12 are spaced apart vertically, the action of transporting the coolant in the cooling chamber 11 to the liquid storage chamber 12 can be accomplished by setting up a pipeline with a valve, in which the coolant is transported by gravity when the valve is open.

[0051] In an embodiment of this invention, the liquid level balancing assembly 2 includes a pipeline structure 21, a valve assembly, and a pump body 23. The pipeline structure 21 has two flow paths connecting the cooling chamber 11 and the liquid storage chamber 12, with opposite flow directions. The valve assembly controls the opening or closing of the two flow paths. The pump body 23 is located on the pipeline structure 21 and is connected to both flow paths. It is used to pump liquid from the cooling chamber 11 to the liquid storage chamber 12 or from the liquid storage chamber 12 to the cooling chamber 11 when one flow path is open. In this embodiment, the pump body 23 is connected to both flow paths simultaneously, meaning that the liquid pumping of both flow paths is controlled by the same pump body 23. The valve assembly controls the opening and closing states of each flow path, thereby allowing both flow paths to be closed or one flow path to be open according to usage requirements.

[0052] It should be noted that the valve assembly can be an electrically controlled valve 6 or a mechanical valve. That is, the opening and closing state of the flow path can be automatically controlled by the control assembly 4 or manually opened and closed. This utility model does not limit this.

[0053] Please refer to Figure 2 and Figure 3The piping structure 21 includes a first connecting pipe 211, a second connecting pipe 212, and a third connecting pipe 213. The two ends of the first connecting pipe 211 are connected to the cooling chamber 11 and the liquid storage chamber 12, respectively. The first connecting pipe 211 can be bent into a U-shape, L-shape, or other shape. Both ends of the second connecting pipe 212 are connected to the first connecting pipe 211, so as to be connected in parallel with the middle section of the first connecting pipe 211. At this time, the first connecting pipe 211 is divided into a middle section and two end sections, with the two end sections connected to the cooling chamber 11 and the liquid storage chamber 12, respectively. The two ends of the third connecting pipe 213 are connected to the second connecting pipe 211 and the liquid storage chamber 12, respectively. The middle section of connecting pipe 212 and the first connecting pipe 211 is divided into a first section near the cooling chamber 11 and a second section near the liquid storage chamber 12, and the first connecting pipe 211 is divided into a third section near the cooling chamber 11 and a fourth section near the liquid storage chamber 12. Pump body 23 is mounted on the third connecting pipe 213, and valve assembly is mounted on the first connecting pipe 211 and the second connecting pipe 212. The first section, the third connecting pipe 213, and the fourth section together form one flow path; the second section, the third connecting pipe 213, and the third section together form another flow path. That is, the third connecting pipe 213 serves as the overlapping section of the two flow paths, thereby ensuring that either flow path can pass through the pump body 23.

[0054] The liquid level balancing component 2 has two operating modes: a draining mode and a replenishing mode. Please refer to [the relevant documentation]. Figure 2 Drainage mode: When the number of servers increases, the flow path consisting of the first section, the third connecting pipe 213, and the fourth section is connected by controlling the valve assembly, thereby transferring the coolant from the cooling chamber 11 to the storage chamber 12; please refer to Figure 3 Liquid replenishment mode: When the number of servers decreases, the flow path composed of the second section, the third connecting pipe 213 and the third section is connected by controlling the valve assembly, thereby transferring the coolant from the liquid storage chamber 12 to the cooling chamber 11.

[0055] Furthermore, the valve assembly includes multiple solenoid valves 22; solenoid valves 22 are installed on the first, second, third, and fourth sections. In the drainage mode, the solenoid valves 22 on the second and third sections are closed, and the control valves 6 on the first and fourth sections are open. In the replenishment mode, the solenoid valves 22 on the second and third sections are open, and the control valves 6 on the first and fourth sections are closed.

[0056] In other embodiments, the valve assembly may also include a three-way valve disposed at the connection of the first connecting pipe 211, the second connecting pipe 212 and the third connecting pipe 213, and the path of the coolant in the pipeline structure 21 is controlled by controlling the valve port of the three-way valve.

[0057] Changes in the liquid level within the cooling chamber 11 can be detected visually by the operator or automatically by corresponding sensors. In this embodiment, the immersion liquid cooling device 100 further includes two liquid level sensors 3 and a control component 4. The two liquid level sensors 3 are both located within the cooling chamber 11 and are spaced apart vertically. The control component 4 is electrically connected to multiple solenoid valves 22 and the two liquid level sensors 3, and is used to control the opening and closing of each solenoid valve 22 based on the electrical signals from the two liquid level sensors 3. The upper liquid level sensor 3 is used to detect the liquid level information at a higher position, i.e., when the liquid level in the cooling chamber 11 is high... When the liquid level is higher than that of the liquid level sensor 3, it indicates that the liquid level in the cooling chamber 11 is too high and needs to be drained. The liquid level sensor 3 located below is used to detect the liquid level information at a lower position. That is, when the liquid level in the cooling chamber 11 is lower than that of the liquid level sensor 3, it indicates that the liquid level in the cooling chamber 11 is too low, which may cause the server to overheat and requires liquid replenishment. In other words, the control component 4 can determine whether to drain or replenish liquid based on the signals fed back by the two liquid level sensors 3, thereby controlling the opening and closing of the corresponding solenoid valve 22 and the opening and closing of the pump body 23, so that the liquid level balancing component 2 can execute the corresponding working mode.

[0058] Furthermore, the level balancing assembly 2 also includes a housing 24 and multiple rollers 25. The inner cavity of the housing 24 houses the piping structure 21, valve assembly, and pump body 23. The multiple rollers 25 are located at the bottom of the housing 24 and are arranged at intervals along the circumference of the housing 24. This arrangement allows the various structures in the assembly to be modularized, and the level balancing assembly 2 can be flexibly disassembled as needed. When the customer's operating conditions do not involve adjusting the number of servers, the piping connections can be disconnected, thereby removing the entire level balancing assembly 2. The rollers 25 also make the housing 24 easy to move and more flexible.

[0059] It should be understood that the control component 4 can be presented in the form of a touch screen or an electronic control box, both of which can be installed through the housing 24.

[0060] To facilitate the disassembly and reassembly of the liquid level balancing assembly 2, the liquid level balancing assembly 2 is connected to the cooling chamber 11 and / or the liquid storage chamber 12 via a guide pipe 5. Specifically, in this embodiment, guide pipes 5 are connected to the bottom of the cooling chamber 11 and the liquid storage chamber 12 respectively, thereby connecting the two ends of the first connecting pipe 211 in the liquid level balancing assembly 2. When disassembling and assembling the liquid level balancing assembly 2, only the guide pipes 5 need to be connected.

[0061] Furthermore, a control valve 6 is provided on the guide pipe 5; if the liquid level balancing component 2 is needed, the control valve 6 can be opened, and if the liquid level balancing component 2 is not needed, the control valve 6 can be closed to ensure that the coolant does not leak.

[0062] Please refer to this again. Figure 1The housing 1 includes a main body 13 and a cover plate 14. The main body 13 has an open-top cavity. A partition 131 is provided inside the cavity to divide it into a cooling cavity 11 and a liquid storage cavity 12, which are horizontally spaced. The cover plate 14 is placed on the upper end of the main body 13 and covers the open-top cavity. The partition 131 extends vertically, thus making the cooling cavity 11 and the liquid storage cavity 12 horizontally spaced. Both the cooling cavity 11 and the liquid storage cavity 12 are open at their upper ends. The cover plate 14 can cover both walls at the same time, allowing the operator to directly observe the liquid level in the two cavities after opening the cover plate 14.

[0063] In addition, a coolant outlet is provided on the upper side of the cooling chamber 11, and a coolant inlet is provided on the lower side of the cooling chamber 11. Both the coolant inlet and the coolant outlet are connected to an external cold source through pipes. Figure 1 In the middle, one end of the coolant inlet pipe 112 is used to connect to an external cold source, which can be connected to a cooling tower or a heat exchanger. The other end is connected to the coolant inlet located at the bottom of the box 1. One end of the coolant outlet pipe 111 is used to connect to an external cold source, which can be connected to a cooling tower or a heat exchanger. The other end is bent to connect to the coolant outlet located on the upper side of the box 1.

[0064] With attachment Figure 1 Taking the embodiment as an example, the working principle of the immersion liquid cooling device 100 will be explained.

[0065] The liquid level balancing assembly 2 and the cooling chamber 11 are two independent units. The piping structure 21 of the liquid level balancing assembly 2 is connected to the cooling chamber 11 and the liquid storage chamber 12 through flange connection. Inside the liquid level balancing assembly 2, there are four electric control valves 6, a canned pump and the pipes connected to them. At the same time, the liquid level balancing assembly 2 also contains a control component 4. The control component 4 can obtain the liquid level information of the two liquid level sensors 3, and can also control the opening and closing of the electric control valves 6, as well as the start and stop and the operating frequency of the canned pump.

[0066] When a new server is placed into the cooling chamber 11, the control component 4 located in the liquid level balancing assembly 2 determines the liquid level based on feedback from the high-level liquid level sensor. If the current liquid level is higher than the set threshold, the control component 4 activates the shielded pump and simultaneously opens the first and fourth stage electric control valves 6 (by default, all four electric control valves 6 are closed). Figure 2 As indicated by the arrow, under the action of the shielded pump, the coolant flows out from the bottom of the cooling chamber 11 and enters the storage chamber 12 through the pipeline of the liquid level balancing component 2. At the same time, the control component 4 continuously monitors the liquid level information transmitted by the liquid level sensor 3 at the top. When the feedback liquid level information is lower than the threshold, it indicates that the current liquid level is balanced and no further drainage is needed. The control component 4 shuts down the shielded pump and closes the corresponding electric control valve 6.

[0067] Conversely, if a server is removed from the cooling chamber 11, causing the liquid level to drop, the control component 4 located in the liquid level balancing assembly 2 will determine the liquid level based on feedback from the low-level liquid level sensor. If the current liquid level is below a set threshold, the control component 4 will activate the shielded pump and simultaneously open the electric control valves 6 on the second and third stages (by default, the electric control valves 6 are both closed). Figure 3 As shown by the arrow, under the action of the shielded pump, the coolant flows out from the bottom of the reservoir 12 and enters the cooling chamber 11 through the pipeline of the liquid level balancing component 2. At the same time, the control component 4 continuously monitors the liquid level information transmitted by the liquid level sensor 3 at the lower position. When the feedback liquid level information is higher than the threshold, it indicates that the current liquid level is balanced and no more liquid needs to be added. The control component 4 shuts down the shielded pump and closes the corresponding electric control valve 6.

[0068] In the technical solution of this utility model, when the number of servers in the cooling chamber 11 increases or decreases, the coolant is transferred between the cooling chamber 11 and the storage chamber 12 by the liquid level balancing component 2, thereby regulating the liquid level in the cooling chamber 11. This dynamically balances the liquid level according to the number of servers in the cooling chamber 11, eliminating the need for manual replenishment or drainage, simplifying the operation and reducing maintenance costs.

[0069] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An immersion liquid cooling device for cooling of hardware equipment, characterized in that, The immersion liquid cooling device comprises: a box body, which has a cooling cavity and a liquid storage cavity arranged in the box body, the cooling cavity is open at the upper end and is used for placing hardware equipment, and the cooling cavity is used for communicating with an external cold source; the liquid storage cavity is communicated with the cooling cavity and is used for storing cooling liquid; and a liquid level balance assembly, which is used for conveying the cooling liquid in the cooling cavity to the liquid storage cavity or conveying the cooling liquid in the liquid storage cavity to the cooling cavity.

2. The immersion liquid cooling device of claim 1, wherein, The liquid level balance assembly comprises: a pipeline structure, which has two flow paths communicated with the cooling cavity and the liquid storage cavity, and the flow directions of the two flow paths are opposite; a valve assembly, which is used for controlling the conduction or closure of the two flow paths; and a pump body, which is arranged on the pipeline structure and is communicated with the two flow paths, and is used for pumping the liquid from the cooling cavity to the liquid storage cavity or from the liquid storage cavity to the cooling cavity when one of the flow paths is conducted.

3. The immersion liquid cooling device of claim 2, wherein, The pipeline structure comprises: a first connecting pipe, which is communicated with the cooling cavity and the liquid storage cavity at two ends respectively; a second connecting pipe, which is communicated with the first connecting pipe at two ends to be parallel with the middle section of the first connecting pipe; and a third connecting pipe, which is communicated with the second connecting pipe and the middle section of the first connecting pipe at two ends to divide the middle section of the second connecting pipe into a first section close to the cooling cavity and a second section close to the liquid storage cavity, and divide the first connecting pipe into a third section close to the cooling cavity and a fourth section close to the liquid storage cavity. The pump body is arranged on the third connecting pipe, and the valve assembly is arranged on the first connecting pipe and the second connecting pipe. The first section, the third connecting pipe and the fourth section jointly form one of the flow paths. The second section, the third connecting pipe and the third section jointly form the other flow path.

4. The immersion liquid cooling device of claim 3, wherein, The valve assembly comprises a plurality of electromagnetic valves. The electromagnetic valves are arranged on the first section, the second section, the third section and the fourth section.

5. The immersion liquid cooling device of claim 4, wherein, The immersion liquid cooling device further comprises: two liquid level sensors, which are arranged in the cooling cavity and are spaced in the up-down direction; a control assembly, which is electrically connected with the plurality of electromagnetic valves and the two liquid level sensors, and is used for controlling the opening and closure of the electromagnetic valves according to the electrical signals of the two liquid level sensors.

6. The immersion liquid cooling device of claim 2, wherein, The liquid level balance assembly further comprises: a shell, which contains the pipeline structure, the valve assembly and the pump body in the inner cavity; and a plurality of rollers, which are arranged on the bottom of the shell and are spaced along the circumference of the shell.

7. The liquid submersion cooling device of claim 1, wherein, The liquid level balance assembly is communicated with the cooling cavity and / or the liquid storage cavity through a guide pipe.

8. The liquid submersion cooling apparatus of claim 7, wherein, The guide pipe is provided with a control valve.

9. The liquid submersion cooling device of claim 1, wherein, The box body comprises: a main body, which has an accommodating cavity open at the upper end, and the accommodating cavity is provided with a partition plate to divide the accommodating cavity into the cooling cavity and the liquid storage cavity which are spaced in the horizontal direction; and A cover plate is arranged on the upper end of the accommodating cavity of the main body.

10. The liquid submersion cooling device of claim 1, wherein, The upper side of the cooling cavity is provided with a cooling liquid outlet, and the lower side of the cooling cavity is provided with a cooling liquid inlet. The cooling liquid inlet and the cooling liquid outlet are both used for connecting an external cooling source.

Images