Lead device of immersed cooling system

Abstract

The embodiment of the invention provides a wire leading device of an immersed cooling system, and the wire leading device comprises a main body, one side, close to an immersion cavity, of the main body is provided with a first opening, one side, far away from the immersion cavity, of the main body is provided with a second opening, and the first opening and the second opening are used for a cable led out from the immersion cavity to pass through; the baffle is arranged in the main body and located between the first opening and the second opening, a cavity is formed between the baffle and the inner space of the main body, one end of the cavity is connected with the first opening, the other end of the cavity is connected with the second opening, the cavity is used for storing sealing liquid, and the sealing liquid is used for separating air between the first opening and the second opening. According to the embodiment of the invention, on the premise of maintaining good air tightness of the immersion cavity, the immersion cavity is not limited to specific cable types, has good adaptability, and is simple in structure, low in cost and easy for mass production.

Description

Technical Field

[0001] The invention relates to the technical field of cooling and heat dissipation of electronic equipment, and in particular to a lead device of an immersion cooling system. Background Art

[0002] The principle of the immersion cooling system is to completely immerse electronic equipment such as servers and switches in the coolant in the immersion chamber. The electronic equipment generates heat during operation, and the coolant vaporizes and transfers the heat, thereby cooling and dissipating the electronic equipment. The immersion cooling system has gradually become a hot topic in the field of electronic equipment cooling and heat dissipation due to its advantages of efficient heat dissipation and energy saving and environmental protection.

[0003] In an immersion cooling system, electronic equipment immersed in the immersion chamber needs to communicate and interact with other electronic equipment outside the immersion cooling system through cables, such as transmitting electrical signals, optical signals, etc. In order to prevent the vaporized coolant from overflowing and reduce the heat exchange with the external environment, the immersion chamber needs to maintain good airtightness. Therefore, the sealing of the cable at the outlet of the immersion chamber is particularly important.

[0004] In one related technology, a flexible sealing lead technology is used, that is, the outlet position of the cable is sealed by foaming sponge, silicone or other flexible materials. However, there is still a gap between the flexible material and the cable, resulting in poor air tightness, and the flexible material is also prone to aging; in another related technology, a vacuum connector technology is used, and a vacuum connector is set at the cable outlet position to achieve sealing. However, the vacuum connector can only install cables that transmit electrical signals, and cannot install optical fiber cables that transmit optical signals. Therefore, there are certain limitations on the selection of cables, and the cost of use is high. Summary of the invention

[0005] In view of the above problems, a lead device for an immersion cooling system is proposed to overcome the above problems or at least partially solve the above problems, comprising:

[0006] A lead-in device for an immersion cooling system, wherein the immersion cooling system is provided with an immersion chamber, and the lead-in device comprises:

[0007] A main body 1, wherein a first opening 11 is provided on a side of the main body 1 close to the immersion chamber, and a second opening 12 is provided on a side away from the immersion chamber; wherein the first opening 11 and the second opening 12 are used to pass cables led out of the immersion chamber;

[0008] The baffle 2 is arranged inside the main body 1 and is located between the first opening 11 and the second opening 12. A cavity 3 is formed between the baffle 2 and the internal space of the main body 1. One end of the cavity 3 is connected to the first opening 11, and the other end is connected to the second opening 12. The cavity 3 is used to store a sealing liquid, and the sealing liquid is used to isolate the air between the first opening 11 and the second opening 12.

[0009] Optionally, a drainage device 4 is further provided on the same side of the main body 1 as the second opening 12 , and the cavity 3 is further provided with a drainage hole 31 ; wherein the drainage device comprises a drainage pipe 41 and a valve 42 , and the drainage pipe 41 is connected to the drainage hole 31 .

[0010] Optionally, the second opening 12 is provided with a cable management device 5, which includes a frame 51 and a plug plate 52, the frame 51 matches the second opening 12, both ends of the plug plate 52 are limited by sliding grooves set on the frame 51, and the plug plate 52 is provided with a plurality of through holes 53, and the plurality of through holes 53 are used to clamp and fix the cables.

[0011] Optionally, the lead-in device further comprises a mounting plate 6, wherein the mounting plate 6 is disposed on the same side of the main body 1 as the first opening 11, and the mounting plate 6 is used to mount and fix the lead-in device on the outer wall of the immersion chamber.

[0012] Optionally, the lead device further includes a transparent window 7 , and the transparent window 7 is used to display the state of the sealing liquid in the cavity 3 .

[0013] Optionally, the transparent window 7 is provided with a plurality of scales, and the plurality of scales are used to indicate the liquid level of the sealing liquid in the cavity 3 .

[0014] Optionally, the density of the sealing liquid in the cavity 3 is greater than the density of the cooling liquid in the immersion cavity.

[0015] Optionally, the sealing liquid includes any one of the following: mineral oil, synthetic oil.

[0016] Optionally, the baffle 2 is a U-shaped baffle, and a curved surface matching the U-shaped baffle is provided inside the main body 1, so that the cavity 3 formed between the U-shaped baffle and the internal space of the main body 1 is a U-shaped cavity;

[0017] The first opening 11 and the second opening 12 are symmetrically arranged with the U-shaped baffle as the center, the first opening 11 is communicated with the interior of the immersion chamber, and the height of the first opening 11 is higher than the liquid level of the coolant in the immersion chamber, and the second opening 12 is communicated with the external environment of the immersion chamber;

[0018] When the lead device is in working state, the sealing liquid is injected into the U-shaped cavity through the second opening 12, so that the liquid level of the sealing liquid in the U-shaped cavity is higher than the bottom of the U-shaped baffle, and the liquid level of the sealing liquid in the U-shaped cavity is lower than the height of the first opening 11 and the second opening 12;

[0019] When the lead-in device is in a non-working state, the sealing liquid is discharged from the U-shaped cavity through the liquid discharge device 4, so that the liquid level of the sealing liquid in the U-shaped cavity is lower than the bottom of the U-shaped baffle.

[0020] An immersion cooling system comprises the lead device as described above.

[0021] The embodiments of the present invention have the following advantages:

[0022] The lead-in device provided by the embodiment of the present invention includes: a main body, a first opening is provided on a side of the main body close to the immersion chamber, and a second opening is provided on a side away from the immersion chamber, wherein the first opening and the second opening are used to pass the cable led out from the immersion chamber; a baffle, the baffle is provided inside the main body and is located between the first opening and the second opening, a cavity is formed between the baffle and the internal space of the main body, one end of the cavity is connected to the first opening, and the other end is connected to the second opening, the cavity is used to store a sealing liquid, and the sealing liquid is used to isolate the air between the first opening and the second opening. The air between the first opening and the second opening is isolated by the sealing liquid in the cavity, thereby isolating the connection between the inside of the immersion chamber and the outside air, so that it is not limited to a specific type of cable while maintaining good air tightness of the immersion chamber, has good adaptability, simple structure, low cost, and is easy to mass produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0024] Figure 1 It is a structural schematic diagram of a lead-in device of an immersion cooling system provided by one embodiment of the present invention;

[0025] Figure 2 is a structural schematic diagram of another lead-in device of an immersion cooling system provided by an embodiment of the present invention;

[0026] Figure 3It is a schematic structural diagram of another lead-in device of an immersion cooling system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. 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.

[0028] Immersion cooling technology is a new type of heat dissipation method that can achieve high heat flux density heat dissipation. With its advantages of efficient heat dissipation and energy saving and environmental protection, it has become a hot topic in the field of heat dissipation of electronic equipment such as servers and switches. The working principle of immersion cooling is to remove the heat of electronic components through single-phase natural convection heat transfer, single-phase forced convection heat transfer or pool boiling heat transfer of the coolant in the immersion chamber. Since the thermal conductivity and latent heat of vaporization of the coolant are much higher than those of air, the thermodynamic intrinsic heat dissipation efficiency of immersion cooling is much higher than that of traditional air cooling, that is, it has lower system energy consumption under the same cooling capacity.

[0029] Immersion cooling can be divided into single-phase immersion cooling and phase change immersion cooling according to whether there is phase change in the working process. Single-phase immersion cooling technology uses high-boiling-point liquid as the working medium (hereinafter referred to as the working medium). When the system is working, it relies on the flow of the working medium (mostly forced convection) to dissipate heat from the server array in the immersion chamber. The cooling system needs to have a built-in liquid pump to drive the flow of the working medium. The system needs to be airtightly designed to prevent the working medium from evaporating and overflowing and to filter air impurities.

[0030] Phase change immersion cooling technology uses low boiling point liquid as the working fluid. When the system is working, it relies on the pool boiling and condensation outside the tube to dissipate heat from the server array. A condensation tube bundle must be built into the top of the immersion chamber to condense the overflowing working fluid vapor. This cooling system has high requirements for air tightness and requires an additional gas phase pressure control system and air tightness device. The system is highly complex, but the heat dissipation effect is optimal.

[0031] In summary, in the immersion cooling system, the immersion chamber used to hold the coolant is usually a closed pressure chamber, and is isolated from the external environment to prevent the coolant from volatilizing and diffusing and to maintain the normal working pressure in the chamber (the working pressure is usually atmospheric pressure). In addition, the closed cavity form can also reduce heat exchange with the external environment, prevent dust, water vapor and impurities in the environment from entering the immersion chamber, and thus extend the working life and maintenance cycle of the immersion system. Considering that the server array immersed in the immersion chamber needs to be powered on and communicate with the outside world, and these interactions are usually completed through power cables, signal cables and optical cables, it is particularly important to design a sealed lead device for the immersion system used for server cooling. The sealed lead device is a device that maintains the transmission of optoelectronic signals inside and outside the container without affecting the airtightness of the pressure vessel.

[0032] In the related art, there are two solutions to achieve sealing of the outlet position of the cable in the immersion chamber:

[0033] 1. Flexible sealing lead technology. Flexible materials (such as foam sponge, silicone and other rubber products) are processed into sealing gaskets, sealing rings, sealing strips or sealing plugs. This method is easy to deploy and is widely used in actual production and life. In actual use, the cable is wrapped or squeezed by the above-mentioned flexible material, thereby achieving a sealing lead effect. In addition, for the use of sealing plugs, additional holes can be punched on the wall of the immersion chamber to install the sealing plug (the size of the sealing plug is slightly larger than the hole size, and the two are interference fit), and the cable can be located at the edge or middle of the sealing plug, and the deformation of the flexible material is used to achieve sealing.

[0034] 2. Vacuum connector technology. The vacuum connector consists of a vacuum plug and a vacuum socket. Both the vacuum plug and the socket have evenly distributed lead terminals, and the lead terminals are wrapped with sealing materials to ensure the airtightness of the device. By connecting the plug and the socket, the lead or pin of the plug contacts the contact point of the socket, and the transmission of electrical signals between the sealed container and the outside world can be achieved. This technology has high sealing reliability and has been widely used in semiconductors, aerospace and other fields.

[0035] However, the above solution has the following defects:

[0036] Regarding the flexible sealed lead technology: its air tightness is poor, and there is still a gap between the flexible material and the cable (especially in the form of extruded cable); the working principle of this technology is to wrap or extrude the cable with a flexible material. The cable is prone to aging under long-term pressure, and the insulation sheath yields or falls off, which poses certain safety hazards.

[0037] Regarding vacuum connector technology: the number and arrangement of pins on the vacuum plug and socket are fixed, with poor deployment flexibility, and the total number of leads needs to be determined at the beginning of the design; this technology can only transmit electrical signals, and optical fiber cannot be installed to transmit optical signals; using this technology, the complete cable needs to be divided into two parts, which are connected to the leads of the plug and socket respectively, which will destroy the integrity of the cable and introduce the risk of poor contact; the deployment cost of this product is high, which will significantly increase the construction cost of the immersion system.

[0038] Based on this, the present invention provides a lead-in device for an immersion cooling system to overcome or partially overcome the above-mentioned defects. The embodiments of the present invention will be described in detail below.

[0039] Reference Figure 1 , shows a schematic structural diagram of a lead-in device of an immersion cooling system provided by an embodiment of the present invention, wherein the immersion cooling system is provided with an immersion chamber, and the lead-in device comprises:

[0040] A main body 1, wherein a first opening 11 is provided on a side of the main body 1 close to the immersion chamber, and a second opening 12 is provided on a side away from the immersion chamber; wherein the first opening 11 and the second opening 12 are used to pass cables led out of the immersion chamber;

[0041] The immersion chamber is a closed chamber in the immersion cooling system used to immerse electronic equipment such as servers and switches. The interior of the immersion chamber can be divided into a liquid phase area and a gas phase area. The liquid phase area is the part that stores the coolant, and the gas phase area is the space above the coolant, which is used to store the vaporized coolant. In practical applications, the interior of the immersion chamber can dissipate heat for electronic equipment such as server arrays through single-phase immersion cooling or two-phase phase change immersion cooling. The working pressure of the immersion chamber should not be lower than the ambient standard air pressure (0.1MPa).

[0042] In a specific implementation, the lead device can be installed and fixed on the outer wall corresponding to the gas phase region of the immersion chamber, and the outer wall can be provided with a cable outlet for the cable to pass through, and the first opening of the lead device is opposite to the cable outlet, so that the lead device is connected to the inside of the immersion chamber. After the lead device is installed, the cable connected to the electronic device is first led out from the immersion chamber, and then passes through the cable outlet of the outer wall of the immersion chamber, the first opening, and the inside of the lead device in sequence, and finally leads out from the second opening to the external environment of the immersion chamber (such as the external environment of the machine room), and is connected to other electronic devices, so that the electronic device in the immersion chamber can communicate with other electronic devices outside the immersion chamber.

[0043] The baffle 2 is arranged inside the main body 1 and is located between the first opening 11 and the second opening 12. A cavity 3 is formed between the baffle 2 and the internal space of the main body 1. One end of the cavity 3 is connected to the first opening 11, and the other end is connected to the second opening 12. The cavity 3 is used to store a sealing liquid, and the sealing liquid is used to isolate the air between the first opening 11 and the second opening 12.

[0044] like Figure 1 As shown, the baffle 2 is disposed inside the main body 1 and is located between the first opening 11 and the second opening 12 . A cavity 3 is formed between the baffle 2 and the internal space of the main body 1 . One end of the cavity 3 is connected to the first opening 11 , and the other end is connected to the second opening 12 .

[0045] In a specific implementation, when the lead device is in a working state, sealing liquid is stored in the cavity 3. When the cable enters the cavity 3 inside the main body 1 through the first opening 11, the sealing liquid immerses the portion of the cable in the cavity 3 and isolates the air between the first opening 11 and the second opening 12. Since the first opening 11 is connected to the inside of the immersion chamber and the second opening 12 is connected to the outside of the immersion chamber, the air inside the immersion chamber is isolated from the air outside the immersion chamber, thereby ensuring the airtightness of the cable at the outlet of the immersion chamber, preventing the vaporized condensate from overflowing, and preventing other debris in the air from entering the immersion chamber.

[0046] Furthermore, the cable passes through the sealing liquid in the cavity 3, is led out from the second opening 12, and communicates with the external environment of the immersion chamber.

[0047] In practical applications, a double sealing structure, such as a labyrinth sealing structure, can also be provided at the first opening 11. By utilizing the principles of fluid dynamics, the gas flow resistance can be increased through a multi-level tortuous channel to effectively prevent the leakage of vaporized coolant, so as to further improve the airtightness of the connection between the lead device and the immersion chamber.

[0048] In some embodiments of the present invention, the sealing liquid includes any one of the following: mineral oil, synthetic oil.

[0049] In a specific implementation, since the coolant vaporized in the immersion chamber may enter the sealing liquid of the lead device through the first opening, in order to reduce the loss of the coolant, the sealing liquid should be a liquid that does not chemically react with the coolant of the immersion system and is not miscible with the coolant. At the same time, in order to prevent the coolant and the moisture in the air from entering the lead device too much, causing the liquid level of the sealing liquid in the lead device to increase too quickly and cause overflow, the sealing liquid should also be a liquid that does not react with the water in the air and is not miscible with water. Therefore, mineral oil, synthetic oil and other liquids can be used as sealing liquids. Mineral oil and synthetic oil are relatively low in cost and have inactive chemical properties.

[0050] In practical applications, the boiling point, density and insulation of the sealing liquid can also be considered to select the sealing liquid. The boiling point of the sealing liquid is relatively high, and it can remain in the liquid phase under conditions such as the ambient temperature of the machine room or the operation of the immersion cooling system, and it is not easy to volatilize. The density of the sealing liquid is relatively large, the insulation is good (for example, the relative dielectric constant is less than 2), and it does not react with the insulation of the cable. It has good chemical stability and can better maintain the stable operation of the lead device.

[0051] In some embodiments of the present invention, the density of the sealing liquid in the cavity 3 is greater than the density of the cooling liquid in the immersion cavity.

[0052] In a specific implementation, the coolant vapor evaporated and diffused in the immersion chamber will condense above the liquid surface of the sealing liquid through the first opening. Since the density of the sealing liquid is greater than the density of the coolant, the coolant will float on the upper layer of the sealing liquid, which can be beneficial to the recovery of the coolant.

[0053] In some embodiments of the present invention, a drainage device 4 is further provided on the same side of the main body 1 as the second opening 12 , and the cavity 3 is further provided with a drainage hole 31 ; wherein the drainage device includes a drainage pipe 41 and a valve 42 , and the drainage pipe 41 is connected to the drainage hole 31 .

[0054] like Figure 1 As shown, a drainage device 4 is further provided on the same side of the main body 1 as the second opening 12 , and a drainage hole 31 is further provided in the cavity 3 ; wherein the drainage device comprises a drainage pipe 41 and a valve 42 , and the drainage pipe 41 is connected to the drainage hole 31 .

[0055] In a specific implementation, valve 42 is used to control the on / off state of drain pipe 41. When the lead device is in working state, valve 42 is in closed state. When it is necessary to reduce the sealing liquid in cavity 3, valve 42 can be opened to allow the sealing liquid in the cavity to be discharged to the outside of the lead device through the drain hole and the drain pipe, thereby realizing flexible adjustment of the liquid level of the sealing liquid.

[0056] In some embodiments of the present invention, the second opening 12 is provided with a cable management device 5, and the cable management device 5 includes a frame 51 and a plug plate 52. The frame 51 matches the second opening 12, and both ends of the plug plate 52 are limited by sliding grooves set on the frame 51. The plug plate 52 is provided with a plurality of through holes 53, and the plurality of through holes 53 are used to clamp and fix the cables.

[0057] like Figure 2 or Figure 3As shown, the cable management device 5 includes a frame 51 and a plug plate 52. The frame 51 matches the second opening 12. Both ends of the plug plate 52 are limited by sliding grooves set on the frame 51. The plug plate 52 is provided with multiple through holes 53, and the multiple through holes 53 are used to clamp and fix the cables.

[0058] In a specific implementation, the plugboard 52 can move up and down along the slide groove of the frame 51. When the cables need to be organized, the plugboard is moved up, the cables are led out through the second opening 12 and the frame 51 in sequence, and the cables are arranged neatly. After the arrangement is completed, the plugboard falls freely, or the plugboard is manually moved down, so that the multiple through holes 53 of the plugboard 52 can fix the arranged cables. The cables can be arranged neatly by the cable management device, which can facilitate the maintenance of the cables.

[0059] In some embodiments of the present invention, the lead device further comprises a mounting plate 6, which is disposed on the same side of the main body 1 as the first opening 11, and is used to mount and fix the lead device to the outer wall of the immersion chamber.

[0060] like Figure 1 As shown, the lead-in device further comprises a mounting plate 6 , and the mounting plate 6 is arranged on the same side of the main body 1 as the first opening 11 .

[0061] In a specific implementation, the mounting plate 6 can be mounted and fixed to the outer wall of the immersion chamber by means of welding, slide groove connection, etc., so as to achieve the installation and fixation of the lead device.

[0062] In some embodiments of the present invention, the lead device further includes a transparent window 7 , and the transparent window 7 is used to display the state of the sealing liquid in the cavity 3 .

[0063] In the specific implementation, Figure 2 As shown, the lead device is also provided with a transparent window 7, which can be a window made of transparent materials such as glass and acrylic. The state of the sealing liquid inside the lead device, such as the liquid level, physical properties, etc., can be observed at any time through the transparent window 7, which is convenient for maintaining the sealing liquid, such as replacing the deteriorated sealing liquid, or adjusting the liquid level of the sealing liquid.

[0064] In some embodiments of the present invention, the transparent window 7 is provided with a plurality of scales, and the plurality of scales are used to indicate the liquid level of the sealing liquid in the cavity 3 .

[0065] In a specific implementation, the transparent window 7 can be provided with a scale of preset units for indicating the liquid level of the sealing liquid in the cavity 3, so as to timely understand whether the liquid level of the sealing liquid deviates from the height range when the lead device works normally.

[0066] In practical applications, such as Figure 2 As shown, a working liquid level indicator scale 71 may be provided on the side where the transparent window 7 is located, and the working liquid level indicator scale 71 is used to indicate the height range of the sealing liquid in the cavity 3 when the lead device is working normally. In combination with the transparent window 7 being provided with multiple scales and the working liquid level indicator scale 71, it is possible to intuitively understand whether the liquid level of the sealing liquid deviates from the height range when the lead device is working normally.

[0067] In some embodiments of the present invention, the baffle 2 is a U-shaped baffle, and a curved surface matching the U-shaped baffle is provided inside the main body 1, so that the cavity 3 formed between the U-shaped baffle and the internal space of the main body 1 is a U-shaped cavity;

[0068] The first opening 11 and the second opening 12 are symmetrically arranged with the U-shaped baffle as the center, the first opening 11 is communicated with the interior of the immersion chamber, and the height of the first opening 11 is higher than the liquid level of the coolant in the immersion chamber, and the second opening 12 is communicated with the external environment of the immersion chamber;

[0069] When the lead device is in working state, the sealing liquid is injected into the U-shaped cavity through the second opening 12, so that the liquid level of the sealing liquid in the U-shaped cavity is higher than the bottom of the U-shaped baffle, and the liquid level of the sealing liquid in the U-shaped cavity is lower than the height of the first opening 11 and the second opening 12;

[0070] When the lead-in device is in a non-working state, the sealing liquid is discharged from the U-shaped cavity through the liquid discharge device 4, so that the liquid level of the sealing liquid in the U-shaped cavity is lower than the bottom of the U-shaped baffle.

[0071] In a specific implementation, a U-shaped cavity is formed between the U-shaped baffle and the curved surface set inside the main body 1. The U-shaped cavity has a certain curvature, which is more conducive to the routing of cables. Moreover, at this time, the U-shaped cavity is equivalent to forming a communicating vessel, and the liquid level height of the sealing liquid stored in the U-shaped cavity is consistent at both ends of the U-shaped cavity, forming a U-shaped liquid column, and there will be no situation where the liquid level at one end is higher and the liquid level at the other end is lower after the sealing liquid is injected into the cavity 3, which is more conducive to controlling the liquid level of the sealing liquid.

[0072] Furthermore, the first opening 11 and the second opening 12 respectively connected to the U-shaped cavity are symmetrically arranged with the U-shaped baffle as the center, and the height of the first opening 11 is higher than the liquid level of the coolant inside the immersion chamber, and the liquid level above the coolant inside the immersion chamber is the gas phase zone of the immersion chamber.

[0073] Furthermore, if the lead-in device is to be in working state, the sealing liquid is injected into the U-shaped cavity from the second opening 12 so that the liquid level of the sealing liquid in the U-shaped cavity is higher than the bottom of the U-shaped baffle. At this time, the sealing liquid immerses the cable in the U-shaped cavity and isolates the air between the first opening 11 and the second opening 12, thereby ensuring the airtightness of the immersion cavity; at the same time, the liquid level of the sealing liquid in the U-shaped cavity is lower than the height of the first opening 11 and the second opening 12. Since the first opening 11 and the second opening 12 are symmetrically arranged based on the U-shaped baffle, the heights of the two are the same, and the liquid level of the sealing liquid at both ends of the U-shaped cavity is also the same. The liquid level of the sealing liquid is lower than the height of the first opening 11 and the second opening 12, which can ensure that the sealing liquid will not overflow from the first opening 11 and the second opening 12 at the same time. Specifically, the liquid level of the sealing liquid is preferably 2 cm away from the bottom of the U-shaped baffle, the first opening 11, and the second opening 12, respectively.

[0074] Furthermore, if the lead device is to be put into a non-working state, the sealing liquid in the U-shaped cavity can be discharged by opening the valve 42 of the discharge device 4. When the liquid level in the U-shaped cavity of the sealing liquid is lower than the bottom of the U-shaped baffle, the air between the first opening 11 and the second opening 12 is restored to be connected, and the air inside and outside the immersion chamber is also restored to be connected.

[0075] In this embodiment, the U-shaped cavity and the first opening and the second opening are symmetrically designed based on the U-shaped baffle, which can facilitate the control of the liquid level of the sealing liquid, and then adjust the liquid level of the sealing liquid through the second opening 12 and the drainage device 4 to flexibly change the working state of the lead device.

[0076] In some embodiments of the present invention, a method for installing a lead device is also provided, which specifically includes the following steps:

[0077] S11, check whether there is any sealing liquid remaining in the cavity 3 through the transparent window 7. If not, confirm whether the valve 52 is in a closed state; if there is any sealing liquid remaining, open the valve 52, and close it after the internal sealing liquid is discharged;

[0078] S12, connecting the first opening 11 of the lead device to the immersion chamber to be sealed, and the connection method may be slide assembly or welding;

[0079] S13, introducing the other side external connector of the interactive cable (electric cable, optical cable, etc.) of the electronic device in the immersion chamber into the cavity 3 through the first opening 11, pulling it out from the second opening 12 and connecting it to the outside;

[0080] S14, observe the transparent window 7, fill the cavity 3 with sealing liquid at the second opening 12, ensure that the liquid level of the sealing liquid is higher than the bottom of the cavity 3 and completely immerses the cable. At this time, the lead-in device is in working state to achieve sealing of the cable outlet position.

[0081] In some embodiments of the present invention, a method for disassembling or maintaining a lead device is also provided, which specifically comprises the following steps:

[0082] S21, observe the transparent window 7. Under normal working conditions, the sealing liquid level should be higher than the bottom of the baffle in the cavity 3 and completely immerse the cable.

[0083] S22, open the valve 52 to discharge the sealing liquid in the cavity 3, and wait until the sealing liquid is completely emptied without any residue;

[0084] S23, pull the connector of the interactive cable (electric cable, optical cable, etc.) of the electronic equipment in the immersion chamber through the first opening 11 and the cavity 3 and out of the second opening 12. At this time, the lead device is in a maintainable or detachable state.

[0085] In some embodiments of the present invention, an immersion cooling system is further provided, wherein the immersion cooling system comprises the lead device as described above.

[0086] The embodiments of the present invention have the following advantages:

[0087] The lead-in device provided by the embodiment of the present invention includes: a main body, a first opening is provided on a side of the main body close to the immersion chamber, and a second opening is provided on a side away from the immersion chamber, wherein the first opening and the second opening are used to pass the cable led out from the immersion chamber; a baffle, the baffle is provided inside the main body and is located between the first opening and the second opening, a cavity is formed between the baffle and the internal space of the main body, one end of the cavity is connected to the first opening, and the other end is connected to the second opening, the cavity is used to store a sealing liquid, and the sealing liquid is used to isolate the air between the first opening and the second opening. The air between the first opening and the second opening is isolated by the sealing liquid in the cavity, thereby isolating the connection between the inside of the immersion chamber and the outside air, so that it is not limited to a specific type of cable while maintaining good air tightness of the immersion chamber, has good adaptability, simple structure, low cost, and is easy to mass produce.

[0088] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0089] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0090] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0091] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the above elements.

[0092] The lead-in device of the immersion cooling system provided is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A lead-in device for an immersion cooling system, characterized in that: The immersion cooling system is provided with an immersion chamber, and the lead-in device comprises: A main body (1), wherein a first opening (11) is provided on a side of the main body (1) close to the immersion chamber, and a second opening (12) is provided on a side away from the immersion chamber; wherein the first opening (11) and the second opening (12) are used for passing cables led out of the immersion chamber; A baffle (2), the baffle (2) being arranged inside the main body (1) and between the first opening (11) and the second opening (12); a cavity (3) being formed between the baffle (2) and the internal space of the main body (1); one end of the cavity (3) being connected to the first opening (11) and the other end being connected to the second opening (12); the cavity (3) being used to store a sealing liquid, and the sealing liquid being used to isolate the air between the first opening (11) and the second opening (12).

2. The lead-in device according to claim 1, characterized in that: A liquid discharge device (4) is also provided on the same side of the main body (1) as the second opening (12), and a liquid discharge hole (31) is also provided in the cavity (3); wherein the liquid discharge device comprises a liquid discharge pipe (41) and a valve (42), and the liquid discharge pipe (41) is connected to the liquid discharge hole (31).

3. The lead-in device according to claim 1, characterized in that: The second opening (12) is provided with a cable management device (5), and the cable management device (5) comprises a frame (51) and a plug plate (52), the frame (51) matches the second opening (12), both ends of the plug plate (52) are limited by sliding grooves arranged on the frame (51), and the plug plate (52) is provided with a plurality of through holes (53), and the plurality of through holes (53) are used to fix the cables in place.

4. The lead-in device according to claim 1, characterized in that: The lead-in device further comprises a mounting plate (6), wherein the mounting plate (6) is arranged on the same side of the main body (1) as the first opening (11), and the mounting plate (6) is used to mount and fix the lead-in device on the outer wall of the immersion chamber.

5. The lead-in device according to any one of claims 1 to 4, characterized in that: The lead-in device also includes a transparent window (7), and the transparent window (7) is used to display the state of the sealing liquid in the cavity (3).

6. The lead-in device according to claim 5, characterized in that: The transparent window (7) is provided with a plurality of scales, and the plurality of scales are used to indicate the liquid level height of the sealing liquid in the cavity (3).

7. The lead-in device according to any one of claims 1 to 4, characterized in that: The density of the sealing liquid in the cavity (3) is greater than the density of the cooling liquid in the immersion cavity.

8. The lead-in device according to any one of claims 1 to 4, characterized in that: The sealing liquid includes any one of the following: mineral oil and synthetic oil.

9. The lead-in device according to claim 2, characterized in that: The baffle (2) is a U-shaped baffle, and a curved surface matching the U-shaped baffle is provided inside the main body (1), so that the cavity (3) formed between the U-shaped baffle and the internal space of the main body (1) is a U-shaped cavity; The first opening (11) and the second opening (12) are symmetrically arranged with the U-shaped baffle as the center, the first opening (11) is connected to the inside of the immersion chamber, and the height of the first opening (11) is higher than the liquid level of the cooling liquid in the immersion chamber, and the second opening (12) is connected to the external environment of the immersion chamber; When the lead-in device is in a working state, the sealing liquid is injected into the U-shaped cavity through the second opening (12), so that the liquid level of the sealing liquid in the U-shaped cavity is higher than the bottom of the U-shaped baffle, and the liquid level of the sealing liquid in the U-shaped cavity is lower than the heights of the first opening (11) and the second opening (12); When the lead-in device is in a non-working state, the sealing liquid is discharged from the U-shaped cavity through the liquid discharge device (4), so that the liquid level of the sealing liquid in the U-shaped cavity is lower than the bottom of the U-shaped baffle.

10. An immersion cooling system, characterized in that: The immersion cooling system comprises the lead-in device according to any one of claims 1-9.

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