Liquid cooling apparatus and electronic device

Abstract

The present application relates to the technical field of liquid cooling apparatuses for electronic devices. Disclosed are a liquid cooling apparatus and an electronic device. The liquid cooling apparatus comprises a main body, a pipeline structure, and a pipeline leakage prevention structure. The main body comprises a liquid cooling plate and a housing disposed on the liquid cooling plate, wherein a liquid cooling channel is formed inside the liquid cooling plate, and a liquid leakage cavity is defined between the housing and the liquid cooling plate, and covers the liquid cooling channel of the liquid cooling plate. The pipeline structure comprises a liquid intake pipe and a liquid output pipe, wherein one end of the liquid intake pipe extends into the liquid leakage cavity to be in communication with the liquid cooling channel, and the other end extends out of the liquid leakage cavity; and one end of the liquid output pipe extends into the liquid leakage cavity to be in communication with the liquid cooling channel, and the other end extends out of the liquid leakage cavity. The pipeline leakage prevention structure is arranged at least corresponding to sections of the liquid intake pipe and the liquid output pipe located outside the housing for collecting any coolant leaking from the liquid intake pipe and the liquid output pipe.

Description

Liquid cooling devices and electronic equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411221848.7, filed on September 2, 2024, entitled "Liquid Cooling Device and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of liquid cooling devices for electronic devices, and particularly to a liquid cooling device and an electronic device. Background Technology

[0004] Cold plates, as highly efficient heat transfer devices, are widely used in various data centers, workstations, and other equipment requiring heat transfer. However, the flow channel structure and dimensions of cold plates vary depending on the application scenario. During operation, the cooling medium flows through the cold plate, and there is a risk of coolant leakage due to factors such as improper installation, corrosion, or micro-leakage. Once a leak occurs, it can lead to short circuits in electronic components or even damage to high-value equipment. Therefore, preventing leakage during the use of cold plates has always been a critical issue that needs improvement in liquid cooling solutions for electronic equipment, and is crucial for maintaining high reliability. Summary of the Invention

[0005] The main purpose of this application is to propose a liquid cooling device and electronic equipment, and to propose a leak-proof solution for the external pipeline of the liquid cooling body of the electronic equipment liquid cooling device.

[0006] To achieve the above objectives, this application proposes a liquid cooling device, comprising: a main body including a liquid cooling plate and a housing disposed on the liquid cooling plate, wherein a liquid cooling channel is formed within the liquid cooling plate, and a leakage cavity is defined between the housing and the liquid cooling plate, the leakage cavity covering the liquid cooling channel of the liquid cooling plate; a pipeline structure including an inlet pipe and an outlet pipe, one end of the inlet pipe extending into the leakage cavity and communicating with the liquid cooling channel, and the other end extending out of the leakage cavity; one end of the outlet pipe extending into the leakage cavity and communicating with the liquid cooling channel, and the other end extending out of the leakage cavity; and a pipeline leak-proof structure, at least corresponding to the section of the inlet pipe and the outlet pipe located outside the housing, for receiving coolant leaking from the inlet pipe and the outlet pipe. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0008] Figure 1 is a three-dimensional structural diagram of the main body of the first embodiment of the liquid cooling device provided in this application;

[0009] Figure 2 is a schematic diagram of the three-dimensional cross-section of Figure 1;

[0010] Figure 3 is a three-dimensional structural diagram of part of the structure in Figure 1;

[0011] Figure 4 is a three-dimensional structural diagram of the structure in Figure 3 from another angle;

[0012] Figure 5 is a three-dimensional structural diagram of the cover plate in Figure 1;

[0013] Figure 6 is a three-dimensional structural diagram of the structure in Figure 5 from another angle;

[0014] Figure 7 is a three-dimensional structural diagram of the sealing plate in Figure 1;

[0015] Figure 8 is a three-dimensional structural diagram of the liquid cooling device in Figure 1;

[0016] Figure 9 is a simplified plan view of an embodiment of the liquid cooling device in Figure 1;

[0017] Figure 10 is a simplified plan view of another embodiment of the liquid cooling device in Figure 1;

[0018] Figure 11 is a three-dimensional structural schematic diagram of the second embodiment of the liquid cooling device provided in this application;

[0019] Figure 12 is a simplified plan view of the liquid cooling device in Figure 11;

[0020] Figure 13 is a three-dimensional structural diagram of the liquid cooling plate in Figure 11;

[0021] Figure 14 is a three-dimensional structural diagram of the substrate in Figure 13;

[0022] Figure 15 is a three-dimensional structural diagram of the sealing plate in Figure 13;

[0023] Figure 16 is a three-dimensional structural diagram of a portion of the main body in Figure 11;

[0024] Figure 17 is a three-dimensional structural diagram of the outer shell in Figure 16;

[0025] Figure 18 is a three-dimensional structural diagram of the main body in Figure 11;

[0026] Figure 19 is a three-dimensional structural diagram of the cover plate in Figure 18;

[0027] Figure 20 is another simplified plan view of the liquid cooling device in Figure 11.

[0028] Explanation of reference numerals in the attached figures: 100, liquid cooling device; 1, main body; 11, liquid cooling plate; 111, liquid cooling channel; 112, base plate; 113, sealing plate; 114, slot; 12. Shell; 121. Outer shell; 122. Cover plate; 123. Liquid inlet; 124. Liquid outlet; 125. Sealing ring; 126. Detection port; 127. Clearance notch; 128. Drain outlet; 13. Leakage chamber; 2. Piping structure; 21. Liquid inlet pipe; 211. External liquid inlet pipe; 212. Internal liquid inlet pipe; 213. First support ring; 22. Liquid outlet pipe; 221. External liquid outlet pipe; 222. Internal liquid outlet pipe; 223. Second support ring; 23. Adapter structure; 3. Piping leak prevention structure; 3a. Water receiving tray; 3b. Sleeve; 4. Leakage detection device; 5. Coolant recovery device; 51. Collection box; 511. Leakage outlet; 52. External collection box; 53. Leakage collection pipe; 54. Pump body; 6. Drain pipe.

[0029] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] It should be noted that if the embodiments of this application 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.

[0032] Furthermore, if the embodiments of this application 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 that simultaneously satisfies A and B. 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 in this application.

[0033] Cold plates, as highly efficient heat transfer devices, are widely used in various data centers, workstations, and other equipment requiring heat transfer. However, the flow channel structure and dimensions of cold plates vary depending on the application scenario. During operation, the cooling medium flows through the cold plate, and there is a risk of coolant leakage due to factors such as improper installation, corrosion, or micro-leakage. Once a leak occurs, it can lead to short circuits in electronic components or even damage to high-value equipment. Therefore, preventing leakage during the use of cold plates has always been a critical issue that needs improvement in liquid cooling solutions for electronic equipment, and is crucial for maintaining high reliability.

[0034] In view of this, this application proposes a liquid cooling device. Please refer to Figures 1 to 20 for embodiments of the liquid cooling device proposed in this application. The liquid cooling device will be described in detail below with reference to the accompanying drawings.

[0035] Please refer to Figures 1 to 20. The liquid cooling device 100 includes a main body 1, a piping structure 2, and a leak-proof piping structure 3. The main body 1 includes a liquid cooling plate 11 and a housing 12 disposed on the liquid cooling plate 11. A liquid cooling channel 111 is formed within the liquid cooling plate 11. A leakage cavity 13 is defined between the housing 12 and the liquid cooling plate 11, and the leakage cavity 13 covers the liquid cooling channel 111 of the liquid cooling plate 11. The piping structure 2 includes an inlet pipe 21 and an outlet pipe 2. 2. One end of the liquid inlet pipe 21 extends into the liquid leakage chamber 13 and communicates with the liquid cooling channel 111, and the other end extends out of the liquid leakage chamber 13; one end of the liquid outlet pipe 22 extends into the liquid leakage chamber 13 and communicates with the liquid cooling channel 111, and the other end extends out of the liquid leakage chamber 13; the pipeline anti-leakage structure 3 is provided at least for the section of the liquid inlet pipe 21 and the liquid outlet pipe 22 located outside the housing 12, so as to receive the coolant leaking from the liquid inlet pipe 21 and the liquid outlet pipe 22.

[0036] In the technical solution of this application, a leakage cavity 13 is provided on the liquid cooling plate 11, and the leakage cavity 13 covers the liquid cooling channel 111 of the liquid cooling plate 11, so as to serve as the first-level anti-leakage at the liquid cooling plate 11, preventing the coolant leaking from the liquid cooling channel 111 from contacting electronic components. On this basis, a pipeline anti-leakage structure 3 is provided for the pipeline structure 2 that connects to the liquid cooling channel 111 and spans within the electronic device, so that when coolant leaks from the part of the pipeline structure 2 outside the leakage cavity 13, the pipeline anti-leakage structure 3 can absorb the leak, thereby effectively optimizing the anti-leakage scheme of the pipeline structure 2 inside the electronic device, forming a second-level anti-leakage outside the housing 12. Combined with the anti-leakage scheme of the leakage cavity 13 for the liquid cooling channel 111, the anti-leakage measures of the liquid cooling device 100 within the electronic device are improved, the reliability of the liquid cooling device 100 is enhanced, and structural requirements are met.

[0037] In one example, the liquid inlet pipe 21 includes an outer liquid inlet section and an inner liquid inlet section connected to each other via a transition structure 23. The inner liquid inlet section is located within the leakage cavity 13 and communicates with the liquid cooling channel 111, while the outer liquid inlet section extends out of the main body 1. The liquid outlet pipe 22 includes an outer liquid outlet section and an inner liquid outlet section connected to each other via a transition structure 23. The inner liquid outlet section is located within the leakage cavity 13 and communicates with the liquid cooling channel 111, while the outer liquid outlet section extends out of the main body 1. The pipeline leak-proof structure 3 is provided at least for the section of the outer liquid inlet section and the outer liquid outlet section located outside the housing 12 to receive the coolant leaking from the outer liquid inlet section and the outer liquid outlet section. It is understandable that both the inlet pipe 21 and the outlet pipe 22 need to be connected to the external liquid supply structure. The inlet pipe 21 and the outlet pipe 22 can be integrated into one structure, that is, the inlet pipe 21 and the outlet pipe 22 only have pipe interfaces that extend into the leakage cavity 13 and connect to the liquid cooling channel 111. However, this arrangement results in the inlet pipe 21 and the outlet pipe 22 being too long and inconvenient to lay out. Furthermore, the long inlet pipe 21 and the outlet pipe 22 are not convenient to connect to the liquid cooling channel 111 in the narrow space of the leakage cavity 13. Therefore, a common practice is to install a connecting structure 23 on the inlet pipe 21 and the outlet pipe 22 to connect the two pipe sections. For example, the connecting structure 23 connects the outer inlet pipe 211 and the inner inlet pipe 212, and the connecting decoupling link connects the outer outlet pipe 221 and the inner outlet pipe 222 to solve and improve the above-mentioned problems. However, since the connecting structure 23 connects the two pipe sections, there is obviously a risk of leakage compared to a single pipe system. Therefore, in this embodiment, the connecting structure 23 is installed inside the leakage cavity 13 so that leakage at the connecting structure 23 can be received by the leakage cavity 13, thus providing further leakage protection.

[0038] In one embodiment of the pipe leak-proof structure 3 proposed in this application, the pipe leak-proof structure 3 includes a water receiving tray 3a located outside the housing 12. The water receiving tray 3a is provided corresponding to the section of the inlet pipe 21 and the outlet pipe 22 located outside the housing 12. The pipe leak-proof structure 3 can be configured in various ways, as long as it can prevent leakage of the inlet pipe 21 and the outlet pipe 22 outside the housing 12. It is not limited here. Here is the first embodiment of the pipe leak-proof structure 3 proposed in this application, that is, the water receiving tray 3a is provided below the inlet pipe 21 and the outlet pipe 22. Since the water receiving tray 3a is not a closed structure, it is suitable for electronic devices that are placed in a static position for a long time. At the same time, because of its non-closed nature, its structure is relatively simple and easy to install.

[0039] Furthermore, the housing 12 is provided with an inlet 123 and an outlet 124 corresponding to the inlet pipe 21 and the outlet pipe 22; a sealing ring 125 is provided at the inlet 123 and / or the outlet 124. To ensure the sealing of the leakage cavity 13 and prevent leakage from overflowing from the inlet 123 and the outlet 124 when it receives a large amount of leakage, thus affecting the electronic components outside the housing 12, this application provides the sealing ring 125 at both the inlet 123 and the outlet 124.

[0040] Further, the housing 12 includes an outer shell 121 and a cover plate 122. The outer shell 121 is mounted on the liquid cooling plate 11, and the cover plate 122 covers the outer shell 121 to form the leakage cavity 13. The liquid inlet 123 and the liquid outlet 124 are opened at the junction of the outer shell 121 and the cover plate 122. The sealing ring 125 includes a first sealing section separately disposed on the outer shell 121 and a second sealing section disposed on the cover plate 122. The cover plate 122 covers the outer shell 121 so that the first sealing section and the second sealing section abut against and surround the sealing ring 125. Understandably, the sealing ring 125 is generally designed as an integral structure, i.e., fitted onto the pipe structure 2. However, considering the structural features of this application, the sealing ring 125 needs to be confined between the liquid inlet 123 and the liquid outlet 124. If the sealing ring 125 is designed as an integral structure, when the liquid inlet pipe 21 and the liquid outlet pipe 22 extend into the leakage cavity 13 and connect with the liquid cooling channel 111, the sealing ring 125 cannot be positioned on the housing 12. The position of the sealing ring 125 on the pipe can only be adjusted after the liquid inlet pipe 21 and the liquid outlet pipe 22 have been connected to the liquid cooling channel 111 to position it on the housing 12. This is cumbersome, inconvenient due to the limited space and close proximity, and cannot guarantee the sealing relationship between the adjusted sealing ring 125 and the housing 121, posing a risk of leakage. Therefore, in this application, the sealing ring 125 is configured as a split structure, that is, the first sealing segment and the second sealing segment together form a complete sealing ring 125. With this configuration, the first sealing segment can be positioned on the outer shell 121, and the second sealing segment can be positioned on the cover plate 122, so that the installation of the sealing ring 125 is independent of the installation operations of the inlet pipe 21 and the outlet pipe 22. The sealing ring 125 can be pre-installed, solving the problem of inconvenient operation due to limited space. At the same time, it solves the problem of the sealing ring 125 being positioned on the shell 12 to ensure the alignment and sealing. On this basis, when the cover plate 122 is closed on the outer shell 121, the first sealing segment and the second sealing segment are squeezed against each other, combined with the inlet pipe 21 or the outlet pipe 22 located in the middle, thus ensuring the sealing performance of the split sealing ring 125.

[0041] Furthermore, in the second embodiment of the pipeline leak-proof structure 3 proposed in this application, the pipeline leak-proof structure 3 includes a sleeve 3b, which includes a first sleeve 3b fitted onto the inlet pipe 21 and a second sleeve 3b fitted onto the outlet pipe 22. Compared to the water receiving tray 3a structure used in the first embodiment, the sleeve 3b fitted onto the inlet pipe 21 and the outlet pipe 22 obviously has better sealing performance and better leak-proof effect, but its installation is more cumbersome. Therefore, it is more suitable for scenarios requiring higher sealing stability, such as leak prevention for important electronic equipment and leak prevention for frequently moved electronic equipment, meeting different usage scenarios than those in the first embodiment. Furthermore, the pipeline structure 2 proposed in this application can be either a rigid or flexible pipeline. Considering the characteristics of the pipeline leak-proof structure 3 described above, it is clear that the water receiving tray 3a is more suitable for rigid pipelines, ensuring the stability of the pipeline route. Conversely, the sleeve 3b is more suitable for flexible pipelines, which are more inconvenient to install but offer greater flexibility in pipeline layout. Of course, the water receiving tray 3a structure can also be applied to the aforementioned flexible pipelines, as long as the direction of the flexible pipeline can be maintained and the alignment between the flexible pipeline and the water receiving tray 3a can be ensured. Similarly, the sleeve 3b can also be applied to rigid pipelines. The operation of fitting it onto a rigid pipeline is more difficult, but after the fitting is completed, the sleeve 3b can perform its own function normally.

[0042] In one example, the liquid inlet pipe 21 includes an outer liquid inlet section and an inner liquid inlet section connected by a transition structure 23. The inner liquid inlet section communicates with the liquid cooling channel 111, and the outer liquid inlet section extends out of the housing 12. A first sleeve 3b is fitted onto the outer liquid inlet section, and one end of the first sleeve 3b extends into the leakage cavity 13 to fit onto the transition structure 23, thereby covering the connection between the outer liquid inlet section and the transition structure 23. And / or, the liquid outlet pipe 22 includes an outer liquid outlet section and an inner liquid outlet section connected by a transition structure 23. The inner liquid outlet section communicates with the liquid cooling channel 111, and the outer liquid outlet section extends out of the housing 12. A second sleeve 3b is fitted onto the outer liquid outlet section, and one end of the second sleeve 3b extends into the leakage cavity 13 to fit onto the transition structure, thereby covering the connection between the outer liquid outlet pipe 221 and the transition structure 23. When the sleeve 3b is used as a leak-proof structure, the sleeve 3b fitted onto the inlet pipe 21 and the outlet pipe 22 must have an open end. The opening can be sealed using an independent sealing structure, but this is obviously unreliable and inconvenient to operate. The adapter structure 23 on the inlet pipe 21 and the outlet pipe 22 has been described above. Based on the adapter structure 23, after the structure of the inlet pipe 21 and the outlet pipe 22 is completed, this application proposes to connect the open end of the sleeve 3b to the adapter structure 23 as well. That is, the sleeve 3b can also cover the connection between the adapter structure 23 and the inlet pipe 21 or the outlet pipe 22. On the one hand, it provides leak-proof protection at the joint between the inlet pipe 21 and the outlet pipe 22 and the adapter structure 23, further improving the leak-proof performance. On the other hand, it solves the sealing problem of the open end of the sleeve 3b. The structure is ingenious and effective.

[0043] In addition, a first support ring 213 is sleeved on the external liquid inlet section, which is used to support the first sleeve 3b; and / or, a second support ring 223 is sleeved on the external liquid outlet section, which is used to support the second sleeve 3b. The sleeve 3b is fitted onto the inlet pipe 21 or the outlet pipe 22 to prevent leakage from the inlet pipe 21 and the outlet pipe 22. It is understood that the gap between the sleeve 3b and the inlet pipe 21 or the outlet pipe 22 is used for drainage. When the sleeve 3b deforms and blocks the gap, the leakage cannot be discharged in time, affecting the leakage recovery and thus affecting the leakage prevention effect. Based on this, this application fits the first support ring 213 on the outer inlet section to support the first sleeve 3b. Similarly, the second support ring 223 is fitted on the outer outlet section to support the second sleeve 3b. In this way, the pipeline is separated from the sleeve 3b by the support ring, ensuring the smooth drainage channel. Of course, the support ring can also cause blockage. Therefore, this application only fits one first support ring 213 on the outer inlet section and one second support ring 223 on the outer outlet section to ensure that both pipeline sections blocked by the support ring can drain.

[0044] In one example, the housing 12 is provided with an inlet 123 and an outlet 124 corresponding to the external liquid inlet section and the external liquid outlet section; wherein, the first support ring 213 is placed at the liquid inlet 123; and / or, the second support ring 223 is placed at the liquid outlet 124. Similar to the purpose of the sealing ring 125 described above, when using the sleeve 3b as the pipeline leak-proof structure 3, the sleeve 3b passes through the inlet 123 and the outlet 124. However, the sleeve 3b is not sealed between the inlet 123 and the outlet 124, creating a possibility of leakage from the leakage cavity 13. Therefore, when using the sleeve 3b, the inlet 123 and the outlet 124 also need to be sealed. It is understandable that the segmented sealing ring 125 described above could also be used to achieve the aforementioned functional effects. However, this application provides a first support ring 213 between the first sleeve 3b and the outer inlet section, and a second support ring between the second sleeve 3b and the outer outlet section. In this embodiment, the existing structure of the first support ring 213 and the second support ring 223 is used as a sealing structure at the liquid inlet 123 and the liquid outlet 124. That is, the first support ring 213 is placed at the liquid inlet 123 to seal the liquid inlet 123, and the second support ring 223 is placed at the liquid outlet 124 to seal the liquid outlet 124. With this arrangement, on the one hand, the first support ring 213 and the second support ring 223 have a sealing effect and a supporting effect. On the other hand, the first support ring 213 placed at the liquid inlet 123 and the second support ring 223 placed at the liquid outlet 124 are limited to achieve the positioning of the first support ring 213 and the second support ring 223, making the structure more stable.

[0045] In addition, the housing 12 includes an outer shell 121 placed on the liquid cooling plate 11 and a cover plate 122 covering the outer shell 121; wherein the outer shell 121 is detachably installed on the liquid cooling plate 11, or the outer shell 121 is integrally formed with the liquid cooling plate 11. The housing 12, including the outer shell 121 and the cover plate 122, has been described above. Its purpose is to enable the installation of various structures within the leakage cavity 13. Based on this, the relationship between the outer shell 121 and the liquid cooling plate 11 is not limited. That is, the outer shell 121 can be detachably installed on the liquid cooling plate 11, or it can be integrally formed with the liquid cooling plate 11. Further, the outer shell 121 can be welded and fixed to the liquid cooling plate 11, or the combined structure of the outer shell 121 and the liquid cooling plate 11 can be directly integrally formed. That is, the outer shell 121 and the base plate 112 on the liquid cooling plate 11 are integrally formed, and then the sealing plate 113 is covered on the base plate 112 to form the liquid cooling channel 111. The liquid cooling plate 11 includes a substrate 112 and a sealing plate 113. At least one of the substrate 112 and the sealing plate 113 has a slot 114. The sealing plate 113 is placed in the leakage cavity 13 and covers the substrate 112 to form the liquid cooling channel 111. The liquid inlet pipe 21 and the liquid outlet pipe 22 are connected to the liquid cooling channel 111 through the sealing plate 113.

[0046] In addition, the liquid cooling device 100 also includes a leakage detection device 4, which includes a first detection device and / or a second detection device. The detection part of the first detection device is disposed at the bottom of the leakage chamber 13; the detection part of the second detection device is disposed at the pipeline leak-proof structure 3. In this application, a leakage detection device 4 is also provided on the basis of a multi-level leak-proof structure. In one example, the leakage detection device 4 can be the first detection device used to detect leakage at the leakage chamber 13, or it can be the second detection device used to detect leakage at the pipeline leak-proof structure 3. It is not limited here. In this embodiment, the first detection device and the second detection device are provided simultaneously to monitor the leakage at the leakage chamber 13 and the pipeline leak-proof structure 3, so as to react in time when abnormalities occur and improve the reliability of the overall device.

[0047] In one example, the top of the housing 12 is provided with a detection port 126, and the detection part of the leakage detection device 4 extends into the leakage chamber 13 through the detection port 126; and / or, the housing 12 is provided with an inlet 123 and an outlet 124 corresponding to the inlet pipe 21 and the outlet pipe 22, and a clearance notch 127 is provided around the inlet 123 and / or the outlet 124, and the detection part of the leakage detection device 4 extends into the leakage chamber 13 through the clearance notch 127. Based on the configuration of the first detection device, where the detection part of the first detection device needs to extend into the leakage chamber 13, and the leakage chamber 13 needs to be sealed, this application proposes that a detection port 126 be opened at the top of the housing 12, so that the detection part of the first detection device can extend into the leakage chamber 13 through the detection port 126, and a sealing structure can be provided at the detection port 126 to seal the detection port 126, ensuring the sealing performance of the leakage chamber 13. This application also proposes that the detection part of the first detection device can be extended into the leakage chamber 13 through the liquid inlet 123 or the liquid outlet 124, so as to utilize the sealing structure already provided at the liquid inlet 123 and the liquid outlet 124 to achieve the sealing of the leakage chamber 13. Both of the above configuration methods meet the functional requirements of this application. The configuration method is based on actual needs and is not limited here.

[0048] Furthermore, the housing 12 is provided with a drain port 128, and the liquid cooling device 100 also includes a drain pipe 6 communicating with the drain port 128. It is understood that the drain port 128 is used to discharge the coolant contained in the leakage chamber 13, so as to recycle the coolant and reduce operating costs.

[0049] Furthermore, the drain port 128 is located at the upper part of the leakage chamber 13. The drain port 128 can be located at any position on the housing 12, as long as it can achieve the drainage function; no limitation is made here. However, in this embodiment, the drain port 128 is located at the upper part of the leakage chamber 13 to cooperate with the leakage detection device 4 located inside the leakage chamber 13 and the leakage detection device 4 located outside the leakage chamber 13, forming a multi-level leakage alarm mechanism. That is, when the leakage detection device 4 located inside the leakage chamber 13 detects leakage, it is a level one maintenance condition, meaning the leakage is not serious. When the leakage detection device 4 outside the leakage chamber 13 detects a leak, it indicates a level two maintenance condition, meaning the leak is relatively serious and requires immediate attention. Therefore, this application provides the leakage chamber 13 and positions the drain port 128 at the top of the leakage chamber 13. This utilizes the larger volume of the leakage chamber 13 to extend the time required to upgrade from level one to level two maintenance conditions under different leakage scenarios. This allows maintenance personnel sufficient time to respond to and handle different leakage conditions based on the warning signal, making maintenance easier. In one example, to meet the pre-tightening requirement of the aforementioned level two maintenance condition, the liquid cooling device 100 further includes a leakage detection device 4. The leakage detection device 4 includes a third detection device, the detection part of which is positioned in the leakage chamber 13 at a height corresponding to the drain port 128.

[0050] In addition, the liquid cooling device 100 also includes a coolant recovery device 5, which includes a collection tank 51. The drain pipe 6 and / or the pipeline leak-proof structure 3 are connected to the collection tank 51. To recover the coolant discharged from the leakage chamber 13 and the coolant collected at the pipeline leak-proof structure 3, this application also provides the coolant recovery device 5 in the liquid cooling device 100, thereby reducing coolant waste and promoting recycling to lower costs.

[0051] In one example, the drain pipe 6 and the leak-proof pipe structure 3 are respectively connected to the collection tank 51; or, the drain pipe 6 is connected to the leak-proof pipe structure 3 and then to the collection tank 51. The drain pipe 6 on the leakage chamber 13 can be connected to the leak-proof pipe structure 3 and then to the collection tank 51, or the drain pipe 6 on the leakage chamber 13 and the leak-proof pipe structure 3 can be respectively connected to the collection tank 51. Both methods can achieve the function of coolant recovery. There is no limitation here, and the configuration can be set according to actual needs.

[0052] Furthermore, the inlet pipe 21 and the outlet pipe 22 are located on the same side of the housing 12, and the pipeline leak-proof structure 3 receives the coolant leaking from the inlet pipe 21 and the outlet pipe 22 and transports it to a collection tank 51; or, the inlet pipe 21 and the outlet pipe 22 are located on opposite sides of the housing 12, and two collection tanks 51 are provided accordingly, and the pipeline leak-proof structure 3 receives the coolant leaking from the inlet pipe 21 and the outlet pipe 22 and transports it to a collection tank 51 respectively. The anti-leakage structure 3 for receiving coolant leaking from the inlet pipe 21 and the outlet pipe 22 has been described above. The positions of the inlet pipe 21 and the outlet pipe 22 on the housing 12 are not limited; therefore, for different relative positions, this application provides one or two collection boxes 51. In one example, when the inlet pipe 21 and the outlet pipe 22 are located on the same side of the housing 12, the anti-leakage structure 3 can be easily configured to simultaneously receive leaks from the inlet pipe 21 and the outlet pipe 22. The coolant is transported to one of the collection tanks 51. When the inlet pipe 21 and the outlet pipe 22 are located on opposite sides of the housing 12, that is, when the gap between the inlet pipe 21 and the outlet pipe 22 is large, the coolant leaking from the inlet pipe 21 and the outlet pipe 22 can be collected by the pipeline leak-proof structure 3 and transported to the two collection tanks 51 respectively. The actual arrangement is based on the actual needs of the site. As long as the coolant leaking from the inlet pipe 21 and the outlet pipe 22 can be transported to the collection tank 51, it is not limited here.

[0053] Furthermore, the collection tank 51 is provided with a leakage outlet 511, and the height of the leakage outlet 511 is lower than the height at which the drain pipe 6 and the pipeline leak-proof structure 3 communicate with the collection tank 51. On the one hand, to facilitate the discharge of coolant from the collection tank 51, and on the other hand, to prevent the coolant level from exceeding the height at which the drain pipe 6 and the pipeline leak-proof structure 3 communicate with the collection tank 51, thus preventing coolant from entering, this application also provides the leakage outlet 511 on the collection tank 51, and sets the height of the leakage outlet 511 to be lower than the height at which the drain pipe 6 and the pipeline leak-proof structure 3 communicate with the collection tank 51.

[0054] In addition, the coolant recovery device 5 also includes an external collection tank 52, which is connected to the leak outlet 511 via a leak collection pipe 53, and a pump body 54 is also provided on the leak collection pipe 53. In this embodiment, the external collection tank 52 and the leak collection pipe 53 connecting the external collection tank 52 and the collection tank 51 are provided for the leak outlet 511 on the collection tank 51, and the pump body 54 is provided on the leak collection pipe 53. This allows for the automatic collection of leaked coolant from outside the electronic device without it entering the device, facilitating collection operations.

[0055] This application also proposes an electronic device, which includes a main body 1 and a liquid cooling device 100. The main body 1 has built-in electronic devices, including chips. The liquid cooling plate 11 on the liquid cooling device 100 is attached to the chip. The structure of the liquid cooling device 100 is the same as described in the above embodiments. Since the electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0056] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A liquid cooling device, comprising: The main body includes a liquid cooling plate and a housing disposed on the liquid cooling plate. A liquid cooling channel is formed in the liquid cooling plate. A leakage cavity is defined between the housing and the liquid cooling plate. The leakage cavity covers the liquid cooling channel of the liquid cooling plate. The piping structure includes an inlet pipe and an outlet pipe, one end of the inlet pipe extending into the leakage cavity and communicating with the liquid cooling channel, and the other end extending out of the leakage cavity; One end of the liquid outlet pipe extends into the liquid leakage cavity and communicates with the liquid cooling channel, while the other end extends out of the liquid leakage cavity; as well as, The pipeline leak-proof structure is provided at least for the section of the inlet pipe and the outlet pipe located outside the housing, so as to receive the coolant leaking from the inlet pipe and the outlet pipe.

2. The liquid cooling device as described in claim 1, wherein, The liquid inlet pipe includes an outer liquid inlet section and an inner liquid inlet section that are connected to each other by a transition structure. The inner liquid inlet section is located in the leakage cavity and communicates with the liquid cooling channel. The outer liquid inlet section extends out of the main body. The liquid outlet pipe includes an external liquid outlet section and an internal liquid outlet section connected to each other by a transition structure. The internal liquid outlet section is located in the leakage cavity and communicates with the liquid cooling channel, while the external liquid outlet section extends out of the main body. The pipeline leak-proof structure is provided at least for the section of the external liquid inlet section and the external liquid outlet section located outside the housing, so as to receive the coolant leaking from the external liquid inlet section and the external liquid outlet section.

3. The liquid cooling device as described in claim 1, wherein, The pipeline leak-proof structure includes a water receiving tray located outside the housing, which corresponds to the section of the inlet pipe and the outlet pipe located outside the housing.

4. The liquid cooling device as described in claim 1, wherein, The housing is provided with an inlet and an outlet corresponding to the inlet pipe and the outlet pipe, respectively; A sealing ring is provided at the liquid inlet and / or the liquid outlet.

5. The liquid cooling device as described in claim 4, wherein, The housing includes an outer shell and a cover plate. The outer shell is mounted on the liquid cooling plate, and the cover plate covers the outer shell to form the leakage cavity. The liquid inlet and the liquid outlet are located at the junction of the outer shell and the cover plate. The sealing ring includes a first sealing section separately disposed on the outer shell and a second sealing section disposed on the cover plate. The cover plate covers the outer shell so that the first sealing section and the second sealing section abut against and surround the sealing ring.

6. The liquid cooling device as claimed in claim 1, wherein, The pipeline leak-proof structure includes a sleeve, which includes a first sleeve fitted onto the inlet pipe and a second sleeve fitted onto the outlet pipe.

7. The liquid cooling device as described in claim 6, wherein, The liquid inlet pipe includes an outer liquid inlet section and an inner liquid inlet section connected by a transition structure. The inner liquid inlet section is connected to the liquid cooling channel. The outer liquid inlet section extends out of the housing. The first sleeve is fitted onto the outer liquid inlet section, and one end of the first sleeve extends into the leakage cavity to fit onto the transition structure, thereby covering the connection between the outer liquid inlet section and the transition structure. And / or, The liquid outlet pipe includes an outer liquid outlet section and an inner liquid outlet section connected by a transition structure. The inner liquid outlet section is connected to the liquid cooling channel. The outer liquid outlet section extends out of the housing. The second sleeve is fitted onto the outer liquid outlet section, and one end of the second sleeve extends into the leakage cavity to fit onto the transition joint, thereby covering the connection between the outer liquid outlet pipe and the transition structure.

8. The liquid cooling device as described in claim 7, wherein, A first support ring is fitted onto the external liquid inlet section, the first support ring being used to support the first sleeve; and / or A second support ring is fitted onto the outgoing liquid section, and the second support ring is used to support the second sleeve.

9. The liquid cooling device as claimed in claim 8, wherein, The housing is provided with an inlet and an outlet corresponding to the external liquid inlet section and the external liquid outlet section; Wherein, the first support ring is placed at the liquid inlet; and / or, The second support ring is placed at the liquid outlet.

10. The liquid cooling device according to any one of claims 1 to 9, wherein, The housing includes an outer shell placed on the liquid cooling plate and a cover plate covering the outer shell; The outer casing can be detachably installed on the liquid cooling plate, or the outer casing and the liquid cooling plate can be integrally formed.

11. The liquid cooling device according to any one of claims 1 to 9, wherein, The liquid cooling plate includes a substrate and a sealing plate. At least one of the substrate and the sealing plate has a slot. The sealing plate is placed inside the leakage cavity and covers the substrate to form the liquid cooling channel. The liquid inlet pipe and the liquid outlet pipe are connected to the liquid cooling channel through the sealing plate.

12. The liquid cooling device according to any one of claims 1 to 9, wherein, The liquid cooling device further includes a leakage detection device, which includes: A first detection device, wherein the detection section is disposed at the bottom of the leakage cavity; and / or, The second detection device has its detection section located at the pipeline leak-proof structure.

13. The liquid cooling device as claimed in claim 12, wherein, The top of the housing has a detection port, and the detection part of the leakage detection device extends into the leakage chamber through the detection port; and / or The housing is provided with an inlet and an outlet corresponding to the inlet pipe and the outlet pipe, and a clearance notch is provided around the inlet and / or the outlet. The detection part of the leakage detection device extends into the leakage cavity through the clearance notch.

14. The liquid cooling device according to any one of claims 1 to 9, wherein, The housing is provided with a drain port, and the liquid cooling device also includes a drain pipe that communicates with the drain port.

15. The liquid cooling device as claimed in claim 14, wherein, The drain outlet is located at the upper part of the leakage cavity.

16. The liquid cooling device as claimed in claim 15, wherein, The liquid cooling device further includes a leakage detection device, which includes a third detection device. The detection part of the third detection device is located in the leakage chamber at a height corresponding to the drain port.

17. The liquid cooling device as claimed in claim 14, wherein, The liquid cooling device also includes a coolant recovery device, which includes a collection tank, and the drain pipe and / or the pipeline leak-proof structure are connected to the collection tank.

18. The liquid cooling device as claimed in claim 17, wherein, The drain pipe and the leak-proof structure of the pipeline are respectively connected to the collection box; or... The drain pipe is connected to the leak-proof structure of the pipeline and then to the collection box.

19. The liquid cooling device as claimed in claim 17, wherein, The inlet pipe and the outlet pipe are located on the same side of the housing. The leak-proof structure of the pipeline receives and transports any coolant leaking from the inlet pipe and the outlet pipe to a collection tank; or, The inlet pipe and the outlet pipe are located on both sides of the housing, and two collection boxes are provided accordingly. The pipeline leak-proof structure receives the coolant leaking from the inlet pipe and the outlet pipe and transports it to one of the collection boxes respectively.

20. The liquid cooling device as claimed in claim 17, wherein, The collection box is provided with a leakage outlet, and the height of the leakage outlet is lower than the height of the drain pipe and the connection between the pipeline anti-leakage structure and the collection box.

21. The liquid cooling device as claimed in claim 20, wherein, The coolant recovery device also includes an external collection tank, which is connected to the leakage outlet through a leakage collection pipe, and a pump body is also installed on the leakage collection pipe.

22. An electronic device, comprising: The main body includes built-in electronic components, said electronic components including chips; and, The liquid cooling device is as described in any one of claims 1 to 21, wherein the liquid cooling plate is attached to and mounted on the chip.

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