Liquid outlet device and liquid cooling box

Abstract

The application provides a liquid outlet device and a liquid cooling tank. The liquid outlet device comprises a cavity. The cavity is arranged in the liquid cooling tank and communicates with the inside of the liquid cooling tank. One side of the cavity is provided with an opening. A filter screen is arranged on the opening. A vortex prevention device is arranged in the cavity. A liquid inlet channel of the vortex prevention device communicates with the inside of the cavity. The liquid inlet channel extends along the radial direction of the vortex prevention device to a liquid outlet channel of the vortex prevention device and communicates with the liquid outlet channel. The liquid outlet channel of the vortex prevention device extends out of the cavity. In the case that the liquid coolant in the inside of the liquid cooling tank overflows into the inside of the cavity through the filter screen, the liquid coolant in the inside of the cavity flows out of the cavity through the vortex prevention device. The application improves or solves the problem of reduced heat dissipation efficiency caused by the liquid outlet device of the liquid cooling tank mixing a large amount of air bubbles into the main pipeline, and improves the heat dissipation efficiency.

Description

Technical Field

[0001] This application belongs to the field of photographic equipment technology, and more specifically, relates to a liquid outlet device and a liquid cooling box. Background Technology

[0002] Immersion liquid cooling technology is one of the main technical approaches to address the high power density and low PUE (Power Usage Effectiveness) requirements of future data centers. Ensuring that an immersion liquid cooling system meets efficient heat dissipation needs requires consideration of every aspect of the system. The design of the liquid coolant outlet is a key factor in ensuring the safe and efficient operation of the system. Traditional outlet designs only provide filtration and lack the ability to prevent vortices or reduce air ingress into the main pipeline. Vortices will cause a large amount of air to enter the main pipeline, which not only reduces the operating efficiency of the pumps connected to the main pipeline but also shortens their lifespan; a large number of air bubbles will also reduce the heat dissipation efficiency of the coolant in the liquid coolant tank. Utility Model Content

[0003] To improve or solve the problem of reduced heat dissipation efficiency caused by a large number of air bubbles being mixed into the main pipeline by the liquid outlet device in the liquid cooling box in the related technology, this application provides a liquid outlet device and a liquid cooling box.

[0004] In a first aspect, embodiments of this application provide a liquid discharge device, including a cavity; the cavity is disposed in a liquid cooling box and communicates with the interior of the liquid cooling box; an opening is provided on one side of the cavity; a filter screen is provided on the opening; an anti-vortex device is provided inside the cavity; the liquid inlet channel of the anti-vortex device communicates with the interior of the cavity; the liquid inlet channel extends radially along the anti-vortex device to the liquid outlet channel of the anti-vortex device and communicates with the liquid outlet channel; the liquid outlet channel of the anti-vortex device extends out of the cavity; when liquid refrigerant inside the liquid cooling box overflows into the cavity through the filter screen, the liquid refrigerant inside the cavity flows out of the cavity through the anti-vortex device.

[0005] The inlet channel extends radially along the anti-vortex device to the outlet channel of the anti-vortex device and communicates with the outlet channel. This guides the liquid refrigerant to flow radially along the anti-vortex device into the outlet channel, thereby reducing the vortices generated when the liquid refrigerant flows within the anti-vortex device. This prevents a large amount of air from entering the liquid refrigerant during its flow, thus avoiding the problem of reduced heat dissipation efficiency caused by a large amount of air entering the main pipeline.

[0006] Furthermore, the anti-vortex device includes an anti-vortex body and a liquid outlet channel; the anti-vortex body has a plurality of liquid inlet channels evenly distributed circumferentially, extending radially toward the center of the anti-vortex body; the anti-vortex body is fixed to the inner wall of the cavity; the center of the anti-vortex body is provided with the liquid outlet channel along the axial direction of the anti-vortex body; the liquid outlet channel extends out of the cavity; the liquid inlet channel communicates with the liquid outlet channel; when the liquid refrigerant inside the liquid cooling box enters the cavity through the filter screen, the liquid refrigerant flows out of the cavity through the liquid outlet channel.

[0007] The multiple liquid inlet channels evenly distributed circumferentially on the anti-vortex body, extending radially towards the center of the anti-vortex body, allow the anti-vortex body to guide the liquid refrigerant more evenly in the circumferential direction to flow radially into the outlet channels. This avoids air mixing caused by uneven flow of liquid refrigerant in the circumferential direction of the anti-vortex body, thereby reducing the vortices formed by the liquid refrigerant inside or outside the anti-vortex body and preventing a large amount of air from mixing in during the flow of liquid refrigerant.

[0008] Furthermore, the anti-vortex device body has a circular structure; the opening area of ​​the liquid inlet end of the liquid inlet channel is larger than the opening area of ​​the liquid outlet end of the liquid inlet channel.

[0009] Furthermore, the liquid refrigerant inside the cavity overflows into the inlet channel of the anti-vortex device.

[0010] Furthermore, the anti-eddy current device includes:

[0011] A baffle is located on one side of the filter screen near the interior of the cavity.

[0012] Furthermore, there are multiple baffles; the multiple baffles are arranged side by side; there are gaps between adjacent baffles; the gaps are connected to the interior of the cavity through the filter screen.

[0013] Furthermore, the baffle includes a first baffle and a second baffle; the first baffle and the second baffle are connected to form a bent plate; the bent plate is bent toward the liquid inlet channel.

[0014] Furthermore, the bending angle of the bending plate is an obtuse angle.

[0015] Furthermore, the cavity is provided with an exhaust port; the exhaust port is connected to the interior of the cavity so that when the liquid refrigerant enters the interior of the cavity through the filter, the air inside the cavity is discharged through the exhaust port.

[0016] Secondly, this application provides a liquid cooling box, including the liquid outlet device.

[0017] This application provides a liquid outlet device and a liquid cooling box. The liquid outlet device employs a cavity, a filter screen communicating with the cavity, and an anti-vortex device. The liquid inlet channel extends radially along the anti-vortex device to the liquid outlet channel and communicates with it, guiding the liquid refrigerant to flow radially into the outlet channel. This reduces vortices generated when the liquid refrigerant flows within the anti-vortex device, thus preventing the ingress of large amounts of air during the flow. This allows the liquid refrigerant inside the cooling box to overflow into the cavity via the filter screen and then flow out of the cavity through the anti-vortex device. This reduces vortices generated during the flow and prevents large amounts of air from entering the pipes, thereby improving or solving the problem of reduced heat dissipation efficiency caused by a large amount of air bubbles being introduced into the main pipeline by the liquid outlet device, thus improving heat dissipation efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the liquid cooling box.

[0020] Figure 2 for Figure 1 A schematic diagram of the internal structure from a perspective view.

[0021] Figure 3 This is a three-dimensional structural diagram of a filter screen with baffles from one perspective.

[0022] Figure 4 This is a three-dimensional structural diagram of a filter with baffles from another perspective.

[0023] Figure 5 This is a three-dimensional structural diagram of the anti-vortex device body from one perspective.

[0024] Figure 6 This is a three-dimensional structural diagram of the anti-vortex device body from another perspective.

[0025] Figure 7 This is a schematic diagram showing the flow direction of liquid refrigerant inside the liquid cooling box.

[0026] The attached figures are labeled as follows:

[0027] 1-Liquid outlet channel, 2-Liquid cooling box, 3-Buffer pool, 4-Baffle, 5-Filter screen, 6-First exhaust pipe, 7-Second exhaust pipe, 8-Liquid outlet, 9-Cavity, 10-Bending plate, 11-Anti-vortex device body, 12-Liquid inlet channel, 13-Liquid inlet, 14-Gap, 15-First baffle, 16-Second baffle, 17-Fan shape, 18-Upper connecting plate, 19-Lower connecting plate, 20-First channel side plate, 21-Second channel side plate, 22-Anti-vortex device. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Immersion liquid cooling technology is one of the main technical approaches to address the high power density and low PUE (Power Usage Effectiveness) requirements of future data centers. Ensuring that an immersion liquid cooling system meets efficient heat dissipation needs requires consideration of every aspect of the system. The design of the liquid coolant outlet is a key factor in ensuring the safe and efficient operation of the system. Traditional outlet designs only provide filtration and lack the ability to prevent vortices or reduce air ingress into the main pipeline. Vortices will cause a large amount of air to enter the main pipeline, which not only reduces the operating efficiency of the pumps connected to the main pipeline but also shortens their lifespan; a large number of air bubbles will also reduce the heat dissipation efficiency of the coolant in the liquid coolant tank.

[0033] To improve or solve the problem of reduced heat dissipation efficiency in related technologies due to a large number of air bubbles being mixed into the main pipeline by the liquid outlet device of the liquid cooling box, in a first aspect, embodiments of this application provide a liquid outlet device, see [reference]. Figures 1-7 As shown, optionally, the liquid outlet device is located in the buffer pool 3 at the top of the liquid cooling tank; the liquid outlet device includes a cavity 9; the cavity is used to be located in the liquid cooling tank 2 and communicates with the interior of the liquid cooling tank 2 through liquid refrigerant; the cavity 9 is provided with a filter screen 5 for communicating with the interior of the cavity, and an anti-vortex device 22 is provided in the cavity, the liquid inlet channel 12 of the anti-vortex device is communicated with the interior of the cavity 9, and the liquid outlet channel 1 of the anti-vortex device 22 extends out of the cavity. When the liquid refrigerant inside the liquid cooling tank overflows into the interior of the cavity through the filter screen 5, the liquid refrigerant inside the cavity flows out of the cavity through the anti-vortex device.

[0034] See Figure 1 and Figure 2 As shown, a liquid inlet 13 is provided on the lower side of the liquid cooling tank. After the liquid refrigerant enters the liquid cooling tank through the liquid inlet 13, the liquid level of the liquid refrigerant gradually enters the buffer tank 3. After the liquid refrigerant in the buffer tank 3 passes through the filter screen, it begins to enter the cavity 9. The liquid refrigerant in the cavity 9 flows out from the inside of the cavity through an anti-vortex device.

[0035] The liquid outlet device is located in the buffer pool at the top of the liquid cooling tank. The cavity is connected to the inside of the liquid cooling tank via liquid refrigerant and is equipped with a filter screen that communicates with the inside of the cavity. When the liquid refrigerant inside the liquid cooling tank overflows into the cavity through the filter screen, the filter screen filters the liquid refrigerant, preventing most air bubbles from entering the cavity. This reduces the amount of air bubbles in the liquid refrigerant flowing out of the outlet device, preventing air bubbles from affecting the heat dissipation performance of the liquid refrigerant and thus improving heat dissipation efficiency.

[0036] The cavity is equipped with an anti-vortex device, whose inlet channel is connected to the cavity interior and whose outlet channel extends outside the cavity. The anti-vortex device alters the flow state of the liquid refrigerant within the cavity, preventing the formation of vortices. Vortices cause instability in the liquid refrigerant flow, easily entraining air and generating bubbles. The anti-vortex device effectively prevents this, further reducing bubble formation and ensuring a smooth and stable outflow of liquid refrigerant from the cavity, thus contributing to the stable operation of the heat dissipation system.

[0037] Inside the liquid cooling chamber, the liquid refrigerant overflows through a filter into the cavity, and then flows out through an anti-vortex device. This design ensures that the liquid refrigerant flows out along a predetermined path and in a more orderly manner, improving its circulation efficiency, helping to remove heat promptly, and enhancing the overall heat dissipation effect of the liquid cooling system.

[0038] Liquid refrigerant flows from buffer tank 3 into the filter screen via an overflow process, thus entering the cavity. Since the density of air bubbles is much lower than that of liquid, during the overflow process, the bubbles naturally rise, while the liquid flows downwards. Using overflow allows sufficient time and space for the air bubbles to rise and separate during the liquid's flow, thereby reducing the amount of air bubbles in the liquid.

[0039] The above solution achieves two goals: firstly, by using overflow to separate air bubbles in the liquid refrigerant before it enters the cavity; secondly, by filtering the liquid refrigerant through a filter screen to reduce the number of air bubbles entering the cavity, and by using an anti-vortex device within the cavity to reduce the generation of vortices, thereby reducing the generation of air bubbles in the liquid refrigerant and improving heat dissipation efficiency.

[0040] Therefore, in this embodiment, the liquid outlet device extends radially along the anti-vortex device through the liquid inlet channel to the liquid outlet channel of the anti-vortex device and communicates with it. This guides the liquid refrigerant to flow radially along the anti-vortex device into the liquid outlet channel, thereby reducing the vortices generated when the liquid refrigerant flows within the anti-vortex device. This prevents a large amount of air from entering the liquid refrigerant during its flow, and enables the liquid refrigerant inside the liquid cooling tank to overflow into the cavity through the filter screen and then flow out of the cavity through the anti-vortex device. This reduces the vortices generated during the flow of the liquid refrigerant and prevents a large amount of air from entering the pipe. Thus, this improves or solves the problem of reduced heat dissipation efficiency caused by a large amount of air bubbles being mixed into the main pipeline by the liquid outlet device of the liquid cooling tank, thereby improving heat dissipation efficiency.

[0041] Optionally, the mesh size of the filter screen is determined by the filtration accuracy of the liquid cooling system, and the mesh size of the filter screen is 50 mesh or higher.

[0042] Furthermore, the anti-vortex device includes an anti-vortex body and a liquid outlet channel; the anti-vortex body has a plurality of liquid inlet channels evenly distributed circumferentially, extending radially toward the center of the anti-vortex body; the anti-vortex body is fixed to the inner wall of the cavity; the center of the anti-vortex body has a liquid outlet channel along the axial direction of the anti-vortex body; the liquid outlet channel extends out of the cavity; the liquid inlet channel communicates with the liquid outlet channel; when the liquid refrigerant inside the liquid cooling box enters the cavity through the filter screen, the liquid refrigerant flows out of the cavity through the liquid outlet channel.

[0043] For example, see Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the anti-vortex device includes an anti-vortex body 11 and a liquid outlet channel 1. The anti-vortex body 11 includes an upper connecting piece 18 and a lower connecting piece 19. The center of the lower connecting piece 19 is provided with a liquid outlet 8 along the axial direction (Y direction) of the anti-vortex body, and the liquid outlet 8 is used to connect to the liquid outlet channel 1. Optionally, a welding plate is provided at the connection between the liquid outlet 8 and the liquid outlet channel 1, which helps to improve the welding reliability between the liquid outlet 8 and the liquid outlet channel 1. Optionally, the direction of the liquid outlet channel 1 is vertically downward. The vertical downward direction of the liquid outlet channel 1 allows the liquid refrigerant in the cavity to flow out naturally from the inside of the cavity under the action of gravity through the anti-vortex device, avoiding the generation of bubbles during the flow process.

[0044] The above-described scheme employs multiple liquid inlet channels evenly distributed circumferentially around the anti-vortex device body, extending radially towards the center of the anti-vortex device body. This design allows liquid refrigerant to enter the anti-vortex device interior uniformly from multiple directions. Compared to a single liquid inlet, uniform liquid inlet avoids the formation of local high-speed flow areas due to concentrated flow and unidirectional direction when the liquid refrigerant enters, thereby reducing the possibility of air being entrained and forming bubbles due to local turbulence and negative pressure.

[0045] The liquid inlet channel extends towards the center of the anti-vortex device, guiding the liquid refrigerant into the device more smoothly and reducing collisions and breakage during entry. In turbulent flow, bubbles are easily broken into smaller bubbles due to collisions with each other or solid walls, making these smaller bubbles more difficult to separate and remove. The liquid inlet design of this anti-vortex device ensures smoother liquid refrigerant flow, reducing the likelihood of bubble breakage and regeneration, and further reducing the bubble content within the cavity.

[0046] The anti-vortex device is fixed to the inner wall of the cavity, effectively disrupting any potential vortices. This creates an orderly flow path for the liquid refrigerant within the device, preventing vortex formation and ensuring a stable outflow of the refrigerant. The inlet and outlet channels are directly connected and rationally designed, reducing bends and obstructions during refrigerant flow and lowering flow resistance. This allows the liquid refrigerant to pass through the anti-vortex device quickly with minimal pressure loss, improving the system's flow efficiency.

[0047] Furthermore, the anti-vortex device body has a circular structure; the opening area of ​​the liquid inlet end of the liquid inlet channel is larger than the opening area of ​​the liquid outlet end of the liquid inlet channel.

[0048] The above solution will reduce the speed of the liquid refrigerant when it enters the inlet channel, allowing the fluid to enter the channel more smoothly and avoiding turbulence and eddies caused by high-speed impact.

[0049] See Figure 5 As shown, both the upper connecting piece 18 and the lower connecting piece 19 are circular structures. The symmetry of the circular structure provides a more regular space for fluid flow. When the liquid refrigerant enters from the larger inlet end to the smaller outlet end, the flow direction of the fluid gradually concentrates. This concentrated flow can effectively disrupt the core area of ​​any potential vortex, making it difficult for the vortex to form and be maintained.

[0050] The anti-vortex device body has multiple liquid inlet channels 12 evenly distributed circumferentially, extending towards the center of the anti-vortex device body in the X direction. Optionally, the space between the upper connecting piece 18 and the lower connecting piece 19 is divided into multiple liquid inlet channels 12 leading to the liquid outlet. The left and right sides of the liquid inlet channel 12 are respectively the first channel side plate 20 and the second channel side plate 21. Optionally, along the X direction, the inner side of the first channel side plate 20 and the inner side of the second channel side plate 21 are close to each other, and the outer side of the first channel side plate 20 and the outer side of the second channel side plate 21 are far apart from each other, so that the area of ​​the liquid inlet end of the liquid inlet channel is larger than the area of ​​the liquid outlet end of the liquid inlet channel. Optionally, the line connecting the upper side of the first channel side plate 20, the upper side of the second channel side plate 21 and the center of the upper connecting piece 18 forms a fan shape 17.

[0051] The above scheme can reduce friction and collision between the fluid and the side plates of each channel, thereby reducing fluid energy loss. The inlet channel 12 is constrained by the first channel side plate 20 and the second channel side plate 21, preventing the formation of vortices. The fan-shaped structure helps guide the liquid refrigerant to distribute more evenly after entering the anti-vortex device body. It allows the liquid refrigerant to diffuse at a certain angle and direction upon entering the anti-vortex device body, thus forming a more uniform fluid distribution inside the anti-vortex device body and improving the uniformity of heat exchange.

[0052] Furthermore, the liquid refrigerant in the cavity 9 overflows into the liquid inlet channel 12 of the anti-vortex device.

[0053] Optionally, the anti-vortex device body 11 is fixed to the top of the inner wall of the cavity. See reference. Figure 5 and Figure 7 As shown, the upper connecting piece 18 of the anti-vortex device body 11 can optionally be fixed to the top wall of the cavity.

[0054] The overflow method ensures that the liquid refrigerant level in the cavity 9 reaches a certain height before automatically flowing into the inlet channel 12 of the anti-vortex device. This design can automatically adjust the flow rate of liquid refrigerant entering the anti-vortex device according to the actual liquid level of the liquid refrigerant in the cavity 9, ensuring that the flow rate of liquid refrigerant entering the anti-vortex device remains relatively stable and avoiding adverse effects on system performance due to excessive flow fluctuations.

[0055] The overflow into the liquid inlet channel 12 effectively prevents both insufficient and excessive liquid refrigerant in the cavity 9. Insufficient liquid refrigerant supply leads to decreased heat dissipation and affects system performance; while excessive liquid refrigerant may cause excessive system pressure and increase the risk of leakage. The overflow mechanism maintains a relatively stable liquid refrigerant level in the cavity 9, ensuring that the liquid refrigerant supply is within an appropriate range, thereby guaranteeing stable system operation.

[0056] Furthermore, the anti-vortex device includes a baffle; the upper side of the baffle is disposed on the lower side of the filter screen.

[0057] A baffle is installed on the lower side of the filter to reduce the vortex formed when liquid refrigerant enters the cavity from the buffer pool.

[0058] See Figure 2 and Figure 3 As shown, exemplarily, two filter screens 5 are spaced apart on the upper side of the cavity, and a baffle 4 is provided on the lower side of the filter screens 5. The upper side of the baffle 4 is connected to the filter screen, and the lower side of the baffle 4 is located inside the cavity. When the liquid cooling system is running, when the liquid refrigerant flows through the filter screen, vortices are easily formed on the side of the filter screen near the inside of the cavity due to the obstruction of the filter screen and the change in fluid velocity. The baffle is placed here to directly block the path of further development and diffusion of the vortex. The presence of the baffle changes the local flow direction of the liquid refrigerant near the filter screen. After encountering the baffle, the flow direction of the liquid refrigerant changes, and the rotational flow that might have formed a vortex is transformed into a more regular straight line or curved flow. This change in flow direction disrupts the dynamic conditions for vortex formation, making it difficult for vortices to be continuously generated and maintained.

[0059] Furthermore, the number of baffles is multiple; the multiple baffles are arranged side by side; there is a gap 14 between adjacent baffles; the gap communicates with the interior of the cavity through the filter screen. Optionally, the number of baffles is eight.

[0060] Multiple baffles are evenly arranged on the lower side of the filter screen. When the liquid level in the liquid coolant tank is lower than the standard level, vortices can easily form as the coolant flows into the filter inlet. The multiple baffles can effectively break the flow path of the vortex, reduce the generation of vortices, and thus reduce the possibility of air entering the buffer pool from the center of the vortex.

[0061] See Figure 3 As shown, multiple baffles 4 are spaced apart on the lower side of the filter screen 5; optionally, the spacing between two adjacent baffles 4 is the same.

[0062] The above scheme employs multiple baffles; the gaps between adjacent baffles alter the local flow state of the liquid refrigerant. As the liquid refrigerant passes through these gaps, its flow direction and velocity undergo complex changes, which interfere with the vortex formation mechanism. Multiple baffles arranged side-by-side form a multi-level vortex-blocking structure. When the liquid refrigerant flows through the filter and generates vortices, the first layer of baffles initially blocks and weakens the vortices, changing their flow direction and intensity. Subsequently, any vortices not completely eliminated continue to flow to the next layer of baffles, where they are again blocked and weakened. This multi-level mechanism gradually and effectively reduces the energy and scale of the vortices, and compared to a single baffle, it more thoroughly prevents the vortices from spreading and intensifying within the cavity, thus significantly improving the anti-vortex effect.

[0063] The uniform spacing ensures that the disturbance experienced by the liquid refrigerant as it passes through each gap is consistent and regular. When the liquid refrigerant flows through the baffle area, similar flow changes occur at each gap, forming a series of regularly distributed vortex interference regions.

[0064] See Figure 4 As shown, the baffle includes a first baffle plate 15 and a second baffle plate 16; the first baffle plate and the second baffle plate are connected to form a bent plate; the bent plate 10 is bent toward the liquid inlet channel; the bending angle α of the bent plate is an obtuse angle.

[0065] The baffle has a specific bending angle, which helps guide the coolant to the outlet pipe, reducing coolant flow to both sides and making the coolant flow channel more stable. The bend towards the inlet channel guides the liquid refrigerant to flow more orderly towards the anti-vortex device body. After impacting the bend, the liquid refrigerant changes its flow direction along the surface of the bend and flows towards the inlet channel of the anti-vortex device body. This guiding effect avoids chaotic flow of liquid refrigerant near the inlet channel, reduces splashing and turbulence, and allows the liquid refrigerant to flow out of the anti-vortex device's outlet channel more smoothly.

[0066] The obtuse angle of the bend can guide the liquid refrigerant to the center of the cavity, reducing the fluid resistance caused by the turbulence formed when the liquid refrigerant enters the cavity.

[0067] Furthermore, the cavity is provided with an exhaust port; the exhaust port is connected to the interior of the cavity so that when the liquid refrigerant enters the interior of the cavity through the filter, the air inside the cavity is discharged through the exhaust port.

[0068] For example, see Figure 2 As shown, the upper side of the cavity is provided with a first exhaust pipe 6 and a second exhaust pipe 7. When liquid refrigerant enters the cavity from the filter, the air inside the cavity will be discharged through the first exhaust pipe 6 and the second exhaust pipe 7. When liquid refrigerant enters the cavity, the air can be quickly discharged through the first exhaust pipe 6 and the second exhaust pipe 7, reducing the residence time of air in the cavity. On the one hand, this avoids the reaction force generated by air compression from hindering the filling of liquid refrigerant; on the other hand, it avoids the generation of bubbles caused by the compression and mixing of compressed air and liquid refrigerant in the cavity, thereby reducing the generation of bubbles during the flow of liquid refrigerant into the cavity. In addition, the reduction of air can effectively improve the service life of the pump in the liquid cooling system, improve the stability of the flow rate, and improve the uniformity and efficiency of heat dissipation. Furthermore, reducing the mixing of air and coolant can also effectively reduce the aging rate of coolant and improve its service life.

[0069] For the flow path of liquid refrigerant, please refer to [link / reference]. Figure 2 , Figure 6 and Figure 7 As shown, liquid refrigerant enters the liquid cooling tank through inlet 13 until it enters buffer tank 3. The liquid refrigerant in buffer tank 3 overflows into filter screen 5, and then, guided by the baffle on the lower side of filter screen 5, the liquid refrigerant flows into the inlet channel of anti-vortex body 11 and enters anti-vortex body 11, and then enters the outlet 8 of anti-vortex body until it is discharged from outlet channel 1. After heat exchange and other treatments, it re-enters the liquid cooling tank through inlet 13 for circulation.

[0070] Optionally, the first exhaust pipe 6 and the second exhaust pipe 7 are located at the top of the cavity, and the positions of the first exhaust pipe 6 and the second exhaust pipe 7 are higher than the highest liquid level of the liquid refrigerant in the cavity, ensuring that the exhaust port is not submerged, which helps to expel air from the cavity, reduce the pressure in the cavity, reduce the resistance caused by the coolant flowing into the cavity from the buffer pool, and reduce the problem of unstable liquid flow caused by changes in the gas pressure of the cavity.

[0071] Secondly, this application provides a liquid cooling box, including the liquid outlet device.

[0072] The functions and effects of the technical features in this technical solution that are similar to or related to the aforementioned technical solution are similar to those in the aforementioned technical solution, and the inventive concept and beneficial effects of this technical solution are similar to those in the aforementioned technical solution, so they will not be repeated here.

[0073] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A liquid outlet device, characterized in that, The device includes a cavity; the cavity is disposed in a liquid cooling box and communicates with the interior of the liquid cooling box; an opening is provided on one side of the cavity; a filter screen is provided on the opening; an anti-vortex device is provided inside the cavity; the liquid inlet channel of the anti-vortex device communicates with the interior of the cavity; the liquid inlet channel extends radially along the anti-vortex device to the liquid outlet channel of the anti-vortex device and communicates with the liquid outlet channel; the liquid outlet channel of the anti-vortex device extends out of the cavity; when the liquid refrigerant inside the liquid cooling box overflows into the cavity through the filter screen, the liquid refrigerant inside the cavity flows out of the cavity through the anti-vortex device.

2. The liquid outlet device according to claim 1, wherein The anti-vortex device includes an anti-vortex body and a liquid outlet channel; the anti-vortex body has a plurality of liquid inlet channels evenly distributed circumferentially, extending radially toward the center of the anti-vortex body; the anti-vortex body is fixed to the inner wall of the cavity; the center of the anti-vortex body has the liquid outlet channel along the axial direction of the anti-vortex body; the liquid outlet channel extends out of the cavity; the liquid inlet channel communicates with the liquid outlet channel; when the liquid refrigerant inside the liquid cooling box enters the cavity through the filter screen, the liquid refrigerant flows out of the cavity through the liquid outlet channel.

3. The liquid outlet device according to claim 2, wherein The anti-vortex device body has a circular structure; the opening area of ​​the liquid inlet end of the liquid inlet channel is larger than the opening area of ​​the liquid outlet end of the liquid inlet channel.

4. The liquid outlet device according to any one of claims 1 to 3, wherein The liquid refrigerant inside the cavity overflows into the inlet channel of the anti-vortex device.

5. The liquid outlet device according to claim 4, wherein The anti-eddy current device includes: A baffle is located on one side of the filter screen near the interior of the cavity.

6. The liquid outlet device according to claim 5, wherein The number of baffles is multiple; the multiple baffles are arranged side by side; there is a gap between adjacent baffles; the gap is connected to the interior of the cavity through the filter screen.

7. The liquid outlet device according to claim 6, wherein The baffle includes a first baffle and a second baffle; the first baffle and the second baffle are connected to form a bent plate; the bent plate is bent toward the liquid inlet channel.

8. The liquid outlet device according to claim 7, wherein The bending angle of the bent plate is an obtuse angle.

9. The liquid outlet device according to claim 1 or 2, wherein The cavity is provided with an exhaust port; the exhaust port is connected to the interior of the cavity so that when the liquid refrigerant enters the interior of the cavity through the filter, the air inside the cavity is discharged through the exhaust port.

10. A liquid-cooled tank characterized by, Includes the liquid dispensing device according to any one of claims 1-9.

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