Liquid cooling device and cabinet
By introducing a lever-assisted structure into the liquid cooling equipment, the problem of difficult power module maintenance was solved, enabling quick plugging and unplugging of the power module, reducing maintenance difficulty, and improving operational efficiency.
Patent Information
- Application Number
- CN202521598013.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-29
AI Technical Summary
The power modules in existing liquid cooling equipment are difficult to maintain, especially due to their large weight, which makes disassembly and installation difficult.
A liquid cooling device was designed, which adopts a lever-assisted structure. Through the cooperation of the lever and the tray, the power module can be quickly plugged in and unplugged, reducing the labor intensity of the operator.
The lever-assisted structure simplifies the process of removing and inserting the power module, reduces the maintenance difficulty of the liquid cooling equipment, and improves maintenance efficiency.
Smart Images

Figure CN224684562U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic equipment technology, and in particular to a liquid cooling device and a cabinet. Background Technology
[0002] As data centers continue to expand in scale, their high-performance computing capabilities also need to be enhanced, which places higher demands on their cooling systems. Currently, data centers typically use liquid cooling systems to dissipate heat from servers, IT cabinets, battery cabinets, and other components. Liquid cooling equipment, as a highly integrated and modular key component of liquid cooling systems, can integrate a liquid cooling circulation system (pumps, pipes, quick connectors, etc.) to deliver coolant to cold plates installed inside the servers.
[0003] For safety and other requirements, liquid cooling equipment must have its internal water and electricity systems separated. Currently, most liquid cooling systems use a top-mounted layout for power distribution, control, and other high-voltage and low-voltage electrical equipment, with the liquid cooling circulation system located at the bottom. However, some liquid cooling systems exceed two meters in height, such as those integrating a temperature monitoring unit. The power module of such systems is quite heavy, making it difficult for maintenance personnel to disassemble and install the power distribution equipment, thus increasing the complexity of maintaining the liquid cooling system. Utility Model Content
[0004] This application provides a liquid cooling device and cabinet to enable quick plugging and unplugging of power modules, thereby reducing the maintenance difficulty of the liquid cooling device.
[0005] In a first aspect, this application provides a liquid cooling device. The liquid cooling device includes a cabinet and a power module, the power module providing power to the liquid cooling circulation pump and control unit within the liquid cooling device. A guide rail and a tray are provided inside the cabinet. The guide rail is fixedly connected to the cabinet, the tray is mounted on the guide rail, and the tray can slide relative to the guide rail along the depth direction of the cabinet. The power module is placed on the tray. A lever is provided on the front side of the tray, the lever is connected to the tray, and the lever can rotate relative to the tray. The lever includes two ends, and the connection point between the lever and the tray is located between the two ends. When one end of the lever rotates away from the tray, the other end of the lever abuts against the cabinet and causes the tray to slide out of the cabinet.
[0006] The liquid cooling equipment of this application is equipped with a lever that assists in sliding a tray out of the cabinet when the power module needs to be replaced. Specifically, when the liquid cooling equipment is operating, the power module is placed on the tray, which is completely inside the cabinet. At this time, the lever is located on the front side of the tray and adjacent to it. When it is necessary to remove the tray and the power module, the operator can directly rotate one end of the lever. The center of rotation of the lever is the connection point between the lever and the tray. Therefore, during the rotation of the lever, since the center of rotation of the lever is located between the two ends of the lever, the other end of the lever rotates and abuts against the cabinet. After the lever abuts against the cabinet, the aforementioned end of the lever is rotated further. At this time, the position where the lever abuts against the cabinet becomes the new center of rotation of the lever. In this way, during the continued rotation of the lever, the lever drives the tray out of the cabinet through the connection point, completing the removal of the power module. In practical applications, due to the large weight of the power module, a large pulling force is required to pull the tray. By rotating the lever to slide the tray out of the cabinet, the required force can be reduced, so as to achieve rapid removal of the power module. After the power module is replaced, simply slide the tray into the cabinet for quick insertion. Therefore, the tray's simple and labor-saving structure allows operators to pull out the power module with one hand, enabling rapid insertion and removal, thus reducing the maintenance difficulty of the liquid cooling equipment.
[0007] In some possible embodiments, the guide rails and trays are positioned near the top of the cabinet. A notch is provided at the bottom of the tray, exposing the power module portion. In practical applications, most liquid-cooled equipment uses a top-mounted power module layout. Because the cabinet is often quite tall, even exceeding two meters, the power module can be pushed out of the tray through the notch after being pulled out with the aid of levers, allowing for easy removal of the power module.
[0008] In some possible embodiments, the notch is positioned close to the lever. The lever is located on the front side of the tray, i.e., the side facing the operator. The notch is also located on the front side of the tray to facilitate operator access.
[0009] In some possible embodiments, a baffle is provided on the front side of the tray to confine the power module within the tray and prevent the power module from falling off during the sliding of the tray.
[0010] In some possible embodiments, the surface of the tray that contacts the guide rail is provided with a limiting protrusion, and the guide rail is provided with a limiting groove. The limiting protrusion is used to slide into the limiting groove and secure the tray and guide rail when the tray partially slides out of the cabinet. The limiting protrusion and the limiting groove cooperate to form a limiting structure that prevents the tray from falling off the guide rail.
[0011] In some possible embodiments, one end of the lever has a retaining protrusion, and the tray has a retaining groove. The retaining protrusion is used to disengage from the retaining groove when one end of the lever rotates away from the tray, and to insert into the retaining groove when one end of the lever rotates toward the tray, thus securing the lever and the tray. In this way, in scenarios where the lever is not used, the entire lever can be positioned adjacent to the tray to reduce the space occupied by the tray. Furthermore, the operator can easily rotate the lever to disengage the retaining protrusion from the retaining groove.
[0012] In some possible embodiments, along the depth direction, the back panel of the cabinet is provided with a device interface, and the back side of the power module is provided with a module interface, which is used to connect to the device interface. When the lever rotates and causes the tray to slide out of the cabinet, the module interface disengages from the device interface. In this embodiment, when removing the power module, because the power module is connected to the device interface of the cabinet, the force required for the tray to slide outward at that moment is relatively large. Therefore, the lever force can reduce the force directly applied by the operator, thereby reducing the torque required to loosen the power module and the manual effort required to remove it.
[0013] In some possible embodiments, the pallet includes a bottom plate and two side plates, which are arranged opposite each other and parallel to the depth direction, with the bottom plate connected between the two side plates. One of the side plates is provided with a rotating shaft, and a lever is sleeved on the rotating shaft and rotates relative to the rotating shaft. The lever is rotatably connected to the side plate of the pallet, which can reduce the overall volume of the pallet.
[0014] In some possible embodiments, one of the side panels has an opening, the rotation axis is located within the opening, and the other end of the lever passes through the opening and is positioned towards the guide rail frame. By creating an opening in the side panel, the lever can abut against the cabinet, allowing for a change in the lever's rotation center. This design is simple and cost-effective.
[0015] Secondly, this application also provides a cabinet. The cabinet contains a guide rail and a tray. The guide rail is fixedly connected to the cabinet, and the tray is mounted on the guide rail and slides relative to the guide rail along the depth direction of the cabinet. A lever is provided on the front side of the tray, connected to the tray and rotating relative to it. The lever has two ends, and the connection point between the lever and the tray is located between the two ends. When one end of the lever rotates away from the tray, the other end of the lever abuts against the cabinet and causes the tray to slide out of the cabinet. In the cabinet of this application, the tray has a lever to assist operators in removing modules, making operation easier and the structure simpler. It enables quick insertion and removal of modules, thereby reducing the difficulty of maintenance inside the cabinet. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a liquid cooling system according to an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of a data center according to an embodiment of this application;
[0018] Figure 3 This is a schematic diagram of a liquid cooling device according to an embodiment of this application;
[0019] Figure 4 This is an internal top view of the cabinet according to an embodiment of this application;
[0020] Figure 5 for Figure 4 A diagram showing the power supply module placed inside the central cabinet;
[0021] Figure 6 This is a schematic diagram of a tray according to an embodiment of this application;
[0022] Figure 7 This is a diagram showing the state of the tray when the lever is rotated in an embodiment of this application;
[0023] Figure 8 This is a diagram showing the state of the tray, power module, and guide rail in the embodiment of this application when the lever is rotated;
[0024] Figure 9 This is a diagram showing the state of the tray and power module after the module interface is disconnected from the device interface in the embodiments of this application.
[0025] Figure 10 This is a state diagram of the power module being removed in an embodiment of this application;
[0026] Figure 11 This is a state diagram of pushing the tray into the cabinet in an embodiment of this application;
[0027] Figure 12 This is a partial schematic diagram of the tray according to an embodiment of this application.
[0028] Figure label:
[0029] 10-Liquid cooling system 11-Refrigerant circuit 12-Coolant circuit
[0030] 13-Battery pack 14-Radiator 15-Liquid pump
[0031] 20-Data Center 21-Cooling Tower 22-Server
[0032] 23-Cold plate; 31-Rack; 32-Power supply module
[0033] 33-Guide rail bracket 34-Pattern 35-Lever
[0034] 35a - First end; 35b - Second end; 36 - Device interface
[0035] 37-Module interface; 38-Notch; 39-Baffle
[0036] 40 - Limiting protrusion; 41 - Base plate; 42 - Side plate
[0037] 43-Rotating shaft 44-Opening Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.
[0039] To facilitate understanding of the liquid cooling equipment and cabinets in the embodiments of this application, their application scenarios are described below. The liquid cooling equipment in the embodiments of this application can be applied in scenarios requiring heat dissipation, such as data centers and energy storage cabinets. It can be used to dissipate heat from electronic equipment (including but not limited to battery packs, servers, power devices, etc.) in the cabinets of data centers or energy storage cabinets, thereby ensuring the normal operation of the data center.
[0040] With the development of computer and network technologies, liquid cooling equipment is becoming increasingly powerful. Liquid cooling equipment is used in liquid cooling systems to house pumps, pipes, quick connectors, and other components within the liquid cooling circulation system. As the power of high-performance electronic equipment continues to increase, the integration of server racks is also increasing, resulting in higher power density. Since electronic equipment generates heat during operation, high-power server racks can experience excessive heat load, and sustained high temperatures can severely impact the performance of electronic equipment, even causing damage. Therefore, to ensure the reliable operation of electronic equipment, server racks often need excellent heat dissipation capabilities. Currently, heat dissipation is primarily achieved through the configuration of liquid cooling systems.
[0041] Figure 1 This is a schematic diagram of a liquid cooling system according to an embodiment of this application. Figure 1 As shown, the liquid cooling system 10 can be applied to an energy storage cabinet. The liquid cooling system 10 includes a refrigerant circuit 11 and a coolant circuit 12, which can exchange heat. The energy storage cabinet includes a battery pack 13, which is located within the coolant circuit 12. Heat from the battery pack 13 can be transferred to the coolant circuit 12 via a radiator 14. A liquid pump 15 is installed within the coolant circuit 12 to pump the liquid working fluid within the coolant circuit 12, thereby ensuring a continuous flow of the liquid working fluid through the radiator 14.
[0042] Figure 2 This is a schematic diagram of a data center according to an embodiment of this application. Figure 2As shown, the data center 20 may include a primary side and a secondary side. The primary side is equipped with a cooling tower 21, and the secondary side is equipped with a server 22 and a cold plate 23. A liquid cooling device 24 is provided between the primary and secondary sides to facilitate heat exchange. Within the primary side, a first coolant circuit is formed between the cooling tower 21 and the liquid cooling device 24; the liquid cooling device 24 transfers the heat exchanged from the secondary side to the cooling tower 21 via coolant, and the cooling tower 21 dissipates the heat. Within the secondary side, a second coolant circuit is formed between the cold plate 23, the server 22, and the liquid cooling device 24; the low-temperature coolant flowing from the liquid cooling device 24 flows through the server 22 and the cold plate 23, absorbing heat from the server 22, and then flows back to the liquid cooling device 24. A liquid pump 15 is provided on the side of the liquid cooling device 24 connected to the secondary side, and the liquid pump 15 drives the coolant to continuously circulate within the second coolant circuit.
[0043] Figure 3 This is a schematic diagram of a liquid cooling device according to an embodiment of this application. Figure 3 As shown, the liquid cooling device 24 includes a cabinet 31 and a power module 32. In some embodiments, the cabinet 31 is internally isolated from electricity and water. The power module 32 and the drive module are placed inside the cabinet 31 and located at the top. The bottom of the cabinet 31 houses the liquid cooling circulation pump, some piping, quick connectors, etc. The middle of the cabinet 31 may also house the main control unit of the Thermal Management Unit (TMU). The power module 32 provides power to the liquid cooling circulation pump and the TMU main control unit. The liquid cooling circulation pump is the core power component of the liquid cooling device 24, used to drive the circulation of coolant. The liquid cooling device can also be referred to as a coolant distribution unit (CDU).
[0044] In actual maintenance, since the height of the cabinet 31 may exceed two meters, operators need to climb to the height and perform maintenance actions such as plugging and unplugging power modules with one hand in accordance with safety maintenance requirements. However, since the power module 32 weighs more than 15kg and has no casters at the bottom, operators need to apply a lot of external force to pull out the power module 32. Furthermore, if the operator does not estimate the weight of the power module 32, it is easy for the power module 32 to fall after being pulled out, causing damage to the power module 32 or injury to personnel.
[0045] In view of this, this application provides a liquid cooling device and a cabinet to enable quick plugging and unplugging of power modules, thereby reducing the maintenance difficulty of the liquid cooling device.
[0046] It should be noted that the terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise.
[0047] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0048] Figure 4 This is an internal top view of the cabinet according to an embodiment of this application. Figure 5 for Figure 4 A diagram showing the power supply modules housed inside the central cabinet. (For example...) Figure 4 and Figure 5 As shown, the cabinet 31 is equipped with a guide rail frame 33 and a tray 34. The guide rail frame 33 is fixedly connected to the cabinet 31, and can be connected by welding, riveting, bolting, or other methods. The tray 34 is mounted on the guide rail frame 33, and the tray 34 can slide relative to the guide rail frame 33 along the depth direction D of the cabinet 31 to slide into or out of the cabinet 31. The power module 32 is placed on the tray 34.
[0049] Specifically, the guide rail bracket 33 includes two guide rails that are arranged opposite each other along the width direction W of the cabinet 31 and extend along the depth direction D. The tray 34 can slide on the two guide rails, thereby sliding into or out of the cabinet 31 along the depth direction.
[0050] Figure 6 This is a schematic diagram of a tray according to an embodiment of this application. Figure 7 This is a diagram showing the state of the tray when the lever is rotated in an embodiment of this application. Figure 6 and Figure 7As shown, a lever 35 is provided on the front side of the tray 34. The lever 35 is connected to the tray 34 and can rotate relative to the tray 34. The lever 35 includes a first end 35a and a second end 35b, and the connection point between the lever 35 and the tray 34 is located between the first end 35a and the second end 35b. When the first end 35a of the lever 35 rotates away from the tray 34, the second end 35b of the lever 35 abuts against the cabinet 31 and drives the tray 34 to slide out of the cabinet 31. It should be noted that the front side of the tray 34 refers to the side facing the operator, and the back side refers to the side away from the operator and facing the back panel of the cabinet 31.
[0051] The liquid cooling device of this application is equipped with a lever 35, which helps the tray 34 slide out of the cabinet 31 when the power module 32 needs to be replaced. Specifically, when the liquid cooling device is working, the power module 32 is placed on the tray 34, and the tray 34 is completely inside the cabinet 31. At this time, the lever 35 is located on the front side of the tray 34 and is adjacent to the tray 34. When it is necessary to remove the tray 34 and the power module 32, the operator can directly rotate the first end 35a of the lever 35. The rotation center O of the lever 35 is the connection position between the lever 35 and the tray 34. Figure 8 This is a diagram showing the state of the tray, power module, and guide rail in an embodiment of this application when the lever is rotated. Figure 7 and Figure 8 As shown, during the rotation of the first end 35a of the lever 35, since the rotation center O of the lever 35 is located between the first end 35a and the second end 35b of the lever 35, the second end 35b of the lever 35 rotates and abuts against the cabinet 31. After the lever 35 abuts against the cabinet 31, the first end 35a of the lever 35 continues to rotate. At this time, the position where the lever 35 abuts against the cabinet 31 becomes the new rotation center O' of the lever 35. Thus, during the continued rotation of the lever 35, the lever 35 drives the tray 34 to slide out of the cabinet 31 through the connection position, completing the removal of the power module 32. In practical applications, due to the large weight of the power module 32, a large pulling force is required to pull the tray 34. By rotating the lever 35 to drive the tray 34 to slide out of the cabinet 31, the required force can be reduced, so as to achieve the rapid removal of the power module 32.
[0052] In some embodiments, along the depth direction, the back panel of the cabinet 31 is provided with a device interface 36, and the back side of the power module 32 is provided with a module interface 37, which is used to connect to the device interface 36. When the lever 35 rotates and causes the tray 34 to slide out of the cabinet 31, the module interface 37 disengages from the device interface 36. Therefore, the maximum force required to remove the power module 32 mainly occurs at the moment the module interface 37 disengages from the device interface 36, and also at the moment the tray 34 slides outward. Therefore, when removing the power module 32, because the power module 32 is connected to the device interface 36 of the cabinet 31, the force required for the tray 34 to slide outward at that moment is relatively large. Therefore, the force of the lever 35 can reduce the force directly applied by the operator, thereby reducing the loosening torque of the power module 32 and the manual effort required to remove the power module 32.
[0053] Figure 9 This is a diagram showing the state of the tray and power module after the module interface is disconnected from the device interface in an embodiment of this application. Figure 9 As shown, after the module interface 37 is disconnected from the device interface 36, the power module 32 can be pulled out by the inertia of the sliding tray 34.
[0054] In practical applications, the location of the power module 32 within the rack 31 is not limited; it can be located at the top, middle, or bottom of the rack 31. For example... Figure 6 and Figure 7 As shown, when the guide rail 33 and tray 34 are positioned near the top of the cabinet 31, a notch 38 can be provided at the bottom of the tray 34, exposing part of the power module 32 through the notch 38. In practical applications, most liquid cooling equipment uses a top-mounted power module 32. This is because the cabinet 31 is quite tall, sometimes exceeding two meters. Figure 10 This is a state diagram of the extracted power module in an embodiment of this application. For example... Figure 10 As shown, after the tray 34 is pulled out with the assistance of the lever 35, the power module 32 can be pushed out of the tray 34 through the notch 38 so that the power module 32 can be taken out. Figure 11 This is a diagram illustrating the state of pushing the tray into the rack in an embodiment of this application. Figure 11 As shown, after the power module 32 is replaced, the tray 34 is directly pushed into the cabinet 31 to quickly insert the power module 32. Therefore, the tray 34 has a simple and labor-saving structure, allowing operators to pull out the power module 32 with one hand, enabling quick insertion and removal of the power module 32, thereby reducing the maintenance difficulty of the liquid cooling equipment.
[0055] In some embodiments, the notch 38 is located near the lever 35. The lever 35 is located on the front side of the tray 34, i.e., the side facing the operator. The notch 38 is also located on the front side of the tray 34 to facilitate operator operation.
[0056] like Figure 6 As shown, a baffle 39 is provided on the front side of the tray 34. The baffle 39 is used to limit the power module 32 to the tray 34 to prevent the power module 32 from falling off during the sliding of the tray 34.
[0057] like Figure 6 and Figure 7 As shown, in some embodiments, the surface of the tray 34 that contacts the guide rail 33 is provided with a limiting protrusion 40, and the guide rail 33 is provided with a limiting groove. The limiting protrusion 40 is used to slide into the limiting groove and fix the tray 34 and the guide rail 33 when the tray 34 partially slides out of the cabinet 31. The limiting protrusion 40 and the limiting groove cooperate to form a limiting structure, which can prevent the tray 34 from falling off the guide rail 33.
[0058] In other embodiments, the surface of the tray 34 that contacts the guide rail 33 is provided with a limiting protrusion 40, and the guide rail 33 is provided with a limiting baffle. When the tray 34 slides outward toward the cabinet 31, the limiting protrusion 40 gradually approaches the limiting baffle and abuts against it. The limiting baffle can prevent the limiting protrusion 40 from moving further, thereby limiting the tray 34.
[0059] In some embodiments, one end of the lever 35 is provided with a fixing protrusion, and the tray 34 is provided with a fixing groove. The fixing protrusion is used to disengage from the fixing groove when one end of the lever 35 rotates away from the tray 34, and to insert into the fixing groove when one end of the lever 35 rotates toward the tray 34, thus fixing the lever 35 and the tray 34. In this way, in scenarios where the lever 35 is not used, the entire lever 35 can be arranged adjacent to the tray 34 to reduce the space occupied by the tray 34. Furthermore, the operator can easily rotate the lever 35 to disengage the fixing protrusion from the fixing groove.
[0060] like Figure 6 As shown, the pallet 34 includes a bottom plate 41 and two side plates 42. The two side plates 42 are arranged opposite each other and parallel to the depth direction D. The bottom plate 41 is connected between the two side plates 42. Figure 12 This is a partial schematic diagram of a tray according to an embodiment of this application. Figure 12 As shown, one of the two side plates 42 is provided with a rotating shaft 43, and a lever 35 is sleeved on the rotating shaft 43 and rotates relative to the rotating shaft 43. The lever 35 is rotatably connected to the side plate 42 of the tray 34, which can reduce the overall volume of the tray 34.
[0061] like Figure 12 As shown, the side plate 42 has an opening 44, the rotating shaft 43 is located inside the opening 44, and the second end 35b of the lever 35 passes through the opening 44 and is positioned towards the guide rail frame 33. By opening the opening 44 in the side plate 42, the lever 35 can abut against the cabinet 31, realizing the change of the rotation center of the lever 35. The structure is simple and the cost is low.
[0062] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A liquid cooling device, characterized in that, The device includes a cabinet and a power module. The power module provides power to the liquid-cooled circulating pump and control unit within the liquid-cooled equipment. The cabinet contains a guide rail and a tray. The guide rail is fixedly connected to the cabinet, and the tray is mounted on the guide rail and slides relative to it along the depth of the cabinet. The power module is placed on the tray. A lever is located on the front side of the tray, connected to and rotating relative to the tray. The lever has two ends, and the connection point between the lever and the tray is located between these two ends. When one end of the lever rotates away from the tray, the other end of the lever abuts against the cabinet, causing the tray to slide out of the cabinet.
2. The liquid cooling device as described in claim 1, characterized in that, The guide rail and the tray are positioned near the top of the cabinet; the bottom of the tray has a notch, through which the power module is partially exposed.
3. The liquid cooling device as described in claim 2, characterized in that, The notch is located near the lever.
4. The liquid cooling device as described in any one of claims 1-3, characterized in that, A baffle is provided on the front side of the tray, which is used to confine the power module within the tray.
5. The liquid cooling device as described in any one of claims 1-4, characterized in that, The surface of the tray that contacts the guide rail is provided with a limiting protrusion, and the guide rail is provided with a limiting groove. The limiting protrusion is used to slide into the limiting groove and fix the tray and the guide rail when the tray partially slides out of the cabinet.
6. The liquid cooling device as described in any one of claims 1-5, characterized in that, The lever has a fixed protrusion at one end and a fixed groove on the tray. The fixed protrusion is used to disengage from the fixed groove when the lever rotates away from the tray and to insert into the fixed groove when the lever rotates toward the tray, thereby fixing the lever and the tray.
7. The liquid cooling device as described in any one of claims 1-6, characterized in that, Along the depth direction, the back panel of the cabinet is provided with a device interface, and the back side of the power module is provided with a module interface, which is used to connect to the device interface; when the lever rotates and causes the tray to slide out of the cabinet, the module interface disengages from the device interface.
8. The liquid cooling device as described in any one of claims 1-7, characterized in that, The tray includes a bottom plate and two side plates, the two side plates are arranged opposite each other and parallel to the depth direction, and the bottom plate is connected between the two side plates; one of the two side plates is provided with a rotating shaft, and the lever is sleeved on the rotating shaft and rotates relative to the rotating shaft.
9. The liquid cooling device as described in claim 8, characterized in that, One of the side plates has an opening, the rotating shaft is located in the opening, and the other end of the lever passes through the opening and is positioned toward the guide rail frame.
10. A server rack, characterized in that, The cabinet is equipped with a guide rail and a tray. The guide rail is fixedly connected to the cabinet, and the tray is mounted on the guide rail and slides relative to the guide rail along the depth direction of the cabinet. A lever is provided on the front side of the tray, and the lever is connected to the tray and rotates relative to the tray. The lever has two ends, and the connection position between the lever and the tray is located between the two ends. When one end of the lever rotates away from the tray, the other end of the lever abuts against the guide rail and drives the tray to slide out of the cabinet.