Liquid cooling system

Abstract

The utility model relates to the technical field of server heat dissipation, and discloses a liquid cooling system, and the system comprises a liquid cooling cabinet which is provided with a containing cavity used for containing cooling liquid, and the bottom of the interior of the containing cavity is provided with a busbar in a protruding manner; the server is used for being vertically inserted into the containing cavity and soaked in the cooling liquid, the position, opposite to the busbar, of the bottom of the server is sunken inwards to form a notch, and the notch is used for wrapping the two sides and the top of the busbar so that the bottom of the server can make contact with the bottom wall in the containing cavity; and a power supply connecting end is arranged in the gap and is used for being electrically contacted with the busbar. In this way, the operation and maintenance cost of the liquid cooling system can be reduced, and the operation and maintenance efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of server heat dissipation, and in particular to a liquid cooling system. Background Art

[0002] Immersion liquid cooling is one of the primary approaches to achieving high power density and low PUE (Power Usage Effectiveness) in data centers. While immersion liquid cooling systems power servers via busbars (e.g., copper busbars) installed in liquid-cooled cabinets, they require dedicated liquid-cooled servers.

[0003] At present, liquid-cooled servers are usually inserted vertically into a cabinet. A copper busbar is set at the bottom of the cabinet, and a raised power clip is set at the bottom of the server. When the server is inserted into the cabinet, the power clip is connected to the copper busbar to form electrical contact to realize power supply to the server.

[0004] The raised power clip at the bottom makes the bottom surface of the server no longer flat. Therefore, during operation and maintenance, the server cannot be directly placed vertically on a flat surface when it is lifted out of the shelf. Instead, additional operation and maintenance personnel are required to adjust the angle of the server to make it flat. This undoubtedly increases the manpower cost of operation and maintenance and affects the efficiency of operation and maintenance. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a liquid cooling system that can reduce operation and maintenance costs and improve operation and maintenance efficiency.

[0006] An embodiment of the present application provides a liquid cooling system, including: a liquid cooling cabinet, having a accommodating cavity for containing cooling liquid, and a bus bar is provided on a protruding bottom of the accommodating cavity; a server, which is used to be vertically inserted into the accommodating cavity and immersed in the cooling liquid, and the bottom of the server is recessed inward to form a notch at a position opposite to the bus bar, and the notch is used to cover both sides and the top of the bus bar so that the bottom of the server contacts the bottom wall of the accommodating cavity; a power connection terminal is provided in the notch, and the power connection terminal is used to electrically contact the bus bar.

[0007] In an optional manner, the power connection end includes a power clip, which is used to clamp on the busbar and form electrical contact.

[0008] In an optional manner, a positioning pin is further provided at the bottom of the accommodating cavity, and a positioning hole is provided at the bottom of the server. The positioning pin is used to be inserted into the positioning hole to position the server in the accommodating cavity and connect the power connection end to the bus.

[0009] In an optional manner, the height of the positioning pin is greater than the height of the busbar.

[0010] In an optional manner, there are multiple positioning pins and positioning holes, which are respectively located on both sides of the busbar.

[0011] In an optional manner, there are multiple servers, and the multiple servers are arranged in the accommodating cavity along the extension direction of the bus, and the gaps on each server are interconnected at both ends along the extension direction of the bus.

[0012] In an optional embodiment, an elastic clip is provided on at least one side of the server, and a clip portion is provided on the side wall of the accommodating cavity opposite to the elastic clip. The elastic clip is used to pop out and clip with the clip portion after the server is inserted into place to limit the server from floating.

[0013] In an optional embodiment, the elastic snap-in component includes a card block movably arranged on at least one side of the server and an elastic component abutting between the card block and the server. The card block is used to be retracted by being squeezed by the inner wall of the accommodating cavity during the process of inserting the server into the accommodating cavity, and after the server is inserted into place, it pops out under the action of the elastic force of the elastic component and engages with the snap-in component.

[0014] In an optional embodiment, a handle is provided on the server, and a push switch that is transmission-connected to the clamping block is provided in the force-bearing area inside the handle. The push switch is used to be pressed when the force-bearing area is subjected to tension to drive the clamping block to rotate and release the clamping part. The handle is used to drive the server to rise and move it out of the accommodating cavity when the force-bearing area is subjected to tension.

[0015] In an optional manner, the push switch and the card block are connected via a pull belt transmission.

[0016] The liquid cooling system provided in the embodiments of the present application is improved by designing a flat server bottom surface. By creating an inwardly recessed notch in the server bottom and positioning the power connector within the notch, when the server is inserted into the liquid cooling cabinet, the notch can wrap around both sides and the top of the busbar, allowing the power connector within the notch to form reliable electrical contact with the busbar. Furthermore, the notch design allows the server bottom to be flat, allowing it to be hoisted by a maintenance vehicle and placed directly vertically on a flat surface during maintenance. This eliminates the need for maintenance personnel to adjust the angle, reducing labor costs and improving maintenance efficiency.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0019] Figure 1 It is a structural diagram of an existing liquid cooling system;

[0020] Figure 2 A perspective structural diagram of a liquid cooling system provided in an embodiment of the present application;

[0021] Figure 3 A perspective structural diagram of a server in a liquid cooling system provided in an embodiment of the present application;

[0022] Figure 4 A perspective structural diagram of a power supply clamp in a liquid cooling system provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of a liquid cooling system provided by an embodiment of the present application in a state where a server is misplaced and inserted;

[0024] Figure 6a A perspective structural diagram of a state in which a server is inserted into a liquid cooling cabinet in a liquid cooling system provided by an embodiment of the present application;

[0025] Figure 6b For Figure 6a A perspective diagram of the structure after the server is inserted into place;

[0026] Figure 7 A perspective structural diagram of an elastic clip in a liquid cooling system according to an embodiment of the present application;

[0027] Figure 8a A schematic diagram of the structure of the liquid cooling system provided in an embodiment of the present application for unlocking the clamping block when removing the server;

[0028] Figure 8b For Figure 8a A structural diagram of a certain state when the server is pulled out.

[0029] The accompanying drawings in the specific implementation manner are as follows:

[0030] Figure 1 middle:

[0031] 1. Cabinet; 11. Positioning holes; 12. Stepped surface; 2. Busbar; 3. Server; 31. Positioning pin; 32. Mounting ears; 4. Power connection terminal; 5. Screws;

[0032] In other attached pictures:

[0033] 100. Liquid cooling system;

[0034] 110, liquid cooling cabinet; 111, accommodating chamber; 1111, positioning pin; 1112, clamping portion; 112, busbar; 113, cabinet body; 114, liner; 115, cover; 116, liquid inlet pipe; 117, overflow hole; 118, liquid outlet pipe;

[0035] 120. Server; 121. Notch; 122. Power connection terminal; 1221. Power clip; 1221a. Mounting base; 1221b. Elastic clamping arm; 1221c. Bump; 123. Positioning hole; 124. Elastic clip; 1241. Block; 1242. Elastic member; 125. Handle; 126. Press switch; 127. Drawstring. DETAILED DESCRIPTION

[0036] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0038] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0039] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0041] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0042] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0043] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0044] Existing liquid cooling systems such as Figure 1 As shown, a busbar 2 is provided at the bottom of the cabinet 1. When a server 3 is vertically inserted into the cabinet 1, the raised power connector 4 on the bottom of the server 3 mates with the busbar 2 to form electrical contact, and the busbar 2 supplies power to the server 3. The cabinet 1 also contains coolant, and the server 3 is immersed in the coolant to achieve liquid cooling and heat dissipation for the server 3.

[0045] In addition, in order to facilitate the alignment and contact between the power connection terminal 4 and the bus 2 during the insertion of the server 3, a positioning hole 11 can also be set at the bottom of the cabinet 1. Accordingly, a positioning pin 31 is provided on the protrusion of the server 3. The positioning pin 31 extends into the positioning hole 11 to realize the positioning of the server 3 in the cabinet 1, and at the same time, the auxiliary power connection terminal 4 is aligned with the bus 2.

[0046] During operation and maintenance, the server 3 is usually lifted and taken out of the cabinet 1 by a maintenance vehicle. After being taken out, the server 3 needs to be placed on a desktop or other flat surface. Figure 1 As can be seen, since the bottom of the server 3 has a raised power connection terminal 4 and a positioning pin 31, it is impossible to place the bottom surface of the server 3 directly in contact with the placement plane. Instead, after the operation and maintenance vehicle lifts the server 3, additional operation and maintenance personnel are required to adjust the angle of the server 3 so that other planes on the server 3 are in contact with the placement plane to achieve the placement of the server 3. This operation process will increase the manpower cost of operation and maintenance, and will also affect the overall operation and maintenance efficiency.

[0047] To address the aforementioned issues, this application improves the liquid cooling system by designing a flat bottom surface for the server. By creating a recessed notch in the bottom of the server and positioning the power connector within this notch, when the server is inserted into the liquid cooling cabinet, the notch wraps around both sides and the top of the busbar, allowing the power connector within the notch to establish reliable electrical contact with the busbar. Furthermore, the notch design ensures a flat bottom for the server, allowing it to be hoisted by a maintenance vehicle and placed directly vertically on a flat surface during maintenance. This eliminates the need for maintenance personnel to adjust the angle, reducing labor costs and improving maintenance efficiency.

[0048] This application embodiment provides a liquid cooling system. Figure 2 and Figure 3 , Figure 2 The perspective structure of the liquid cooling system is shown in FIG. Figure 3 The figure shows a perspective structure of a server in a liquid cooling system. As shown in the figure, the liquid cooling system 100 includes a liquid cooling cabinet 110 and a server 120. The liquid cooling cabinet 110 has a receiving chamber 111 for holding a coolant (not shown), and a bus 112 is provided on the bottom of the receiving chamber 111. The server 120 is used to be vertically inserted into the receiving chamber 111 and immersed in the coolant. The bottom of the server 120 is recessed inward to form a notch 121 at a position opposite to the bus 112. The notch 121 is used to cover both sides and the top of the bus 112 so that the bottom of the server 120 contacts the bottom wall of the receiving chamber 111. A power connection terminal 122 is provided in the notch 121, and the power connection terminal 122 is used to make electrical contact with the bus 112.

[0049] like Figure 2As shown, the liquid cooling cabinet 110 may include a cabinet body 113, an inner liner 114, and a cover plate 115. The inner liner 114 is disposed within the cabinet body 113 and protected by the cabinet body 113, forming a receiving cavity 111 within the inner liner 114. The cover plate 115 is disposed over the top openings of the cabinet body 113 and the inner liner 114 to provide a reliable liquid cooling environment for the server 120 when the liquid cooling system 100 is in operation. The busbar 112 at the bottom of the receiving cavity 111 serves as a busbar for supplying power to the server 120 and may be constructed using a conductive copper busbar, sheet metal, or a nickel busbar.

[0050] Please continue reading Figure 2 The bottom of the liquid-cooling cabinet 110 may be provided with a liquid inlet pipe 116 for supplying coolant to the bottom of the accommodating chamber 111. An overflow hole 117 may be provided near the top of the accommodating chamber 111. The height of the overflow hole 117 is greater than or equal to the height of the server 120, allowing the coolant supplied from the bottom to flow upward through the entire server 120, fully absorbing the heat from the server 120 before flowing into the overflow hole 117. The overflow hole 117 is connected to a liquid outlet pipe 118. The coolant flowing into the overflow hole 117 is output through the liquid outlet pipe 118 to the outside of the liquid-cooling cabinet 110 for heat exchange and cooling, and then is re-injected through the liquid inlet pipe 116, thereby forming a circulating flow.

[0051] like Figure 2 As shown, after the server 120 is inserted into the accommodating cavity 111, the notch 121 at the bottom of the server 120 wraps around the outer periphery of the bus 112, and the bottom of the server 120 rests on the bottom wall of the accommodating cavity 111, ensuring that the server 120 is placed stably within the accommodating cavity 111. At the same time, the power connection terminal 122 located in the notch 121 forms an electrical contact with the bus 112, allowing the server 120 to draw power from the bus 112 to operate.

[0052] like Figure 3 As shown, a notch 121 is provided at the bottom of the server 120, and a power connection terminal 122 is arranged in the notch 121. This structural design enables a flat surface to be formed at the bottom of the server 120. In this way, during operation and maintenance, the server 120 can be lifted and pulled out of the liquid cooling cabinet 110 and then directly placed in a vertical state on a flat surface such as a desktop without adjusting the placement angle of the server 120. The entire process is convenient and quick.

[0053] In order to improve the power density of the data center where the liquid cooling system 100 is located, the server 120 can be arranged in the accommodating cavity 111 as follows: Figure 2As shown, multiple servers 120 are arranged along the extension direction of the bus 112, and the notches 121 on each server 120 are interconnected at both ends along the extension direction of the bus 112, so that after the notches 121 are covered around the outer periphery of the bus 112, the server 120 can be stably placed at the bottom of the accommodating cavity 111.

[0054] In order to improve the stability and reliability of power supply to the server 120, the power connection terminal 122 can be used as follows: Figure 4 The power clip 1221 shown in FIG. 1 can be clamped onto the bus bar 112 and form an electrical contact.

[0055] exist Figure 4 In the specific embodiment shown, the power clip 1221 includes a mounting base 1221a and two elastic clamping arms 1221b. The mounting base 1221a can be fixed to the bottom of the server 120 by screws, welding, clamping, etc. The mounting base 1221a and the two elastic clamping arms 1221b can be an integrated metal structure, and the elastic clamping arms 1221b are formed by extending downward from the mounting base 1221a. There are protrusions 1221c facing each other between the two elastic clamping arms 1221b. During the insertion of the server 120, the protrusions 1221c and the bus 112 squeeze each other, causing the two elastic clamping arms 1221b to bend and deform in opposite directions. As the elastic clamping arms 1221b tend to recover their deformation, the protrusions 1221c and the bus 112 are in close contact to form electrical contact. At the same time, the power clip 1221 will also be electrically connected to the circuit in the server 120 during installation, thereby achieving power supply from the bus 112.

[0056] Please combine again Figure 2 and Figure 3 During the insertion of the server 120, in order to facilitate the alignment of the notch 121 with the bus 112, a positioning pin 1111 is further provided at the bottom of the accommodating cavity 111, and a positioning hole 123 is provided at the bottom of the server 120. The positioning pin 1111 is used to be inserted into the positioning hole 123 so that the server 120 is positioned in the accommodating cavity 111 and the power connection end 122 is docked with the bus 112.

[0057] In this embodiment, a raised positioning pin 1111 is provided at the bottom of the accommodating cavity 111, and a concave positioning hole 123 is provided at the bottom of the server 120, so that the notch 121 can be aligned with the bus 112 and the server 120 can be positioned by matching the pin and hole, while ensuring that the bottom of the server 120 remains flat, ensuring that the server 120 can be directly placed vertically during operation and maintenance.

[0058] Furthermore, in order to prevent the risk of power short circuit caused by accidental contact between other positions of the server 120 and the bus 112, as shown in FIG. Figure 5As shown, the height H1 of the positioning pin 1111 can be set to be greater than the height H2 of the bus bar 112. After such setting, as shown in FIG. Figure 5 When the server 120 shown in the figure is about to be inserted to the bottom and the positioning pin 1111 is not aligned with the positioning hole 123, the bottom wall of the server 120 will first contact the positioning pin 1111, while other positions of the server 120 will not contact the bus 112. This ensures that during the insertion of the server 120, when the positioning pin 1111 is not aligned with the positioning hole 123, no other potentially conductive positions on the server 120 will contact the bus 112, thereby preventing the risk of short circuit and improving the safety of the liquid cooling system 100.

[0059] like Figure 5 As shown, the number of positioning pins 1111 and positioning holes 123 can be multiple and located on both sides of the bus 112 respectively. By aligning and plugging multiple positioning pins 1111 and positioning holes 123 one by one, the reliability of positioning the server 120 in the liquid cooling cabinet 110 can be improved.

[0060] Please refer again Figure 1 As the server 3 is inserted deeper into the cabinet 1, the buoyancy of the coolant on it will also increase. When it is inserted into place, if there is no structural restriction, the large buoyancy may cause the server 3 to float up. To this end, the current solution is to set hanging ears 32 on both sides of the top of the server 3, and fix the hanging ears 32 to the step surface 12 in the cabinet 1 with screws 5 to prevent the server 3 from floating up.

[0061] With the above solution, after the server 3 is installed, it is necessary to press the server 3 to overcome the buoyancy while screwing the screws 5 into the hanging ears 32 to fix it. This operation is time-consuming and labor-intensive, and is not convenient or quick enough.

[0062] Based on this, in order to improve the efficiency of loading the server 120, this application has improved the design of the structure that restricts the floating of the server 120. Figure 3 , and further combined with Figure 6a and Figure 6b As shown in the figure, at least one side of the server 120 is provided with an elastic clamping member 124, and the side wall of the accommodating cavity 111 opposite to the elastic clamping member 124 is provided with a clamping portion 1112 (which can be a clamping slot as shown in FIG6 or a clamping block, etc.). Figure 6a As shown, during the process of inserting the server 120 into the accommodating cavity 111, the elastic clip 124 is squeezed by the inner wall of the accommodating cavity 111 and elastically contracts inwards to ensure that the server 120 can be inserted normally. Figure 6b After the server 120 is inserted into place, the elastic clamping member 124 pops out and is clamped with the clamping portion 1112 in the vertical direction, thereby preventing the server 120 from floating up.

[0063] In this embodiment, the limiting structure for the floating of the server 120 no longer adopts the traditional screw fastening method, but is implemented by elastic snap-in. In this way, after the server 120 is inserted into place, the elastic force of the elastic snap-in part 124 on the server 120 is released, so that it automatically pops out and forms a snap connection with the snap-in part 1112 on the inner wall of the accommodating cavity 111. The entire process does not require manual fixation, that is, there is no need to press the server 120 and tighten the screws, thereby achieving efficient installation of the server 120.

[0064] Regarding the specific structure of the elastic clip 124, this application proposes an implementation method. Figure 6a and Figure 6b The figure shows a perspective structure of the elastic clip 124, which includes a block 1241 movably arranged on at least one side of the server 120 and an elastic member 1242 abutting between the block 1241 and the server 120. In the specific embodiment shown in the figure, the block 1241 is connected to the server 120 in a rotational manner. Of course, in other embodiments, a sliding connection can also be used. For the rotational arrangement of the block 1241, the elastic member 1242 can be a torsion spring, a spring, etc. in addition to the compression spring shown in the figure. For the sliding arrangement of the block 1241, the elastic member 1242 can be a compression spring, a spring, etc.

[0065] like Figure 6a As shown, when the server 120 is inserted, the card block 1241 is squeezed by the inner wall of the accommodating cavity 111 and is retracted. Figure 6b As shown, after the server 120 is inserted into place, the clamping block 1241 pops out and is clamped with the clamping portion 1112 under the elastic force of the elastic member 1242 .

[0066] for Figure 1 As shown, the ear 32 on the server 3 is locked and fixed to the step surface 12 inside the cabinet 1 by screws 5. When the server 3 is removed for operation and maintenance, tools are required to unscrew the screws 5 before the server 3 can be removed. This will undoubtedly affect the removal efficiency of the server 3, and there is a risk that the screws 5 will fall into the cabinet 1. Once the screws 5 fall into the cabinet 1, it may cause a short circuit in the server 3. In addition, the screws 5 are exposed to the coolant and are not easy to remove.

[0067] Therefore, in order to further improve the operation and maintenance efficiency, this application also makes corresponding designs for the unlocking structure of the card block 1241. For details, please refer to Figure 3 , and combined with Figure 7 , Figure 7The structure of the elastic clip is shown in the figure. As shown in the figure, a handle 125 is provided on the server 120, and a push switch 126 that is transmission-connected to the card block 1241 is provided in the force-bearing area inside the handle 125. Specifically, the push switch 126 and the card block 1241 can be connected by the pull belt 127 shown in the figure, or by a steel rope, etc.

[0068] When removing the server 120, Figure 8a As shown in the figure, the drawstring 127 is indicated by a dotted line. When the user holds the handle 125 or the lifting part of the maintenance vehicle is wrapped around the handle 125, the press switch 126 is pressed by force (specifically, the press switch 126 is pressed and moves upward), and then the press switch 126 pulls the drawstring 127 to make the card block 1241 overcome the elastic force of the elastic member 1242 to shrink and contact the card connection portion 1112. Figure 8b As shown, the server 120 can be pulled out upwards, and the entire removal process is easy and labor-saving.

[0069] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they may modify the technical solutions described in the above embodiments or replace some or all of the technical features therein with equivalents. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments of this application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts.

Claims

1. A liquid cooling system, characterized in that: include: A liquid cooling cabinet having a receiving cavity for containing cooling liquid, wherein a bus is provided on a bottom protrusion of the receiving cavity; The server is used to be vertically inserted into the accommodating cavity and immersed in the coolant. The bottom of the server is recessed inward to form a notch at a position opposite to the bus. The notch is used to cover the two sides and top of the bus so that the bottom of the server contacts the bottom wall of the accommodating cavity. A power connection terminal is provided in the notch, and the power connection terminal is used to electrically contact the bus.

2. The liquid cooling system according to claim 1, characterized in that The power connection end includes a power clip, which is used to be clamped on the busbar and form electrical contact.

3. The liquid cooling system according to claim 1, characterized in that A positioning pin is further provided at the bottom of the accommodating cavity, and a positioning hole is provided at the bottom of the server. The positioning pin is used to be inserted into the positioning hole so that the server is positioned in the accommodating cavity and the power connection end is docked with the busbar.

4. The liquid cooling system according to claim 3, characterized in that The height of the positioning pin is greater than the height of the busbar.

5. The liquid cooling system according to claim 3, characterized in that: There are multiple positioning pins and positioning holes, which are respectively located on both sides of the busbar.

6. The liquid cooling system according to any one of claims 1 to 5, characterized in that: There are multiple servers, and the multiple servers are arranged in the accommodating cavity along the extension direction of the bus, and the notches on each server are interconnected at both ends along the extension direction of the bus.

7. The liquid cooling system according to any one of claims 1 to 5, characterized in that: An elastic clip is provided on at least one side of the server, and a clip portion is provided on the side wall of the accommodating cavity opposite to the elastic clip. The elastic clip is used to pop out and clip with the clip portion after the server is inserted into place to limit the server from floating up.

8. The liquid cooling system according to claim 7, characterized in that: The elastic clamping member includes a clamping block movably arranged on at least one side of the server and an elastic member abutting between the clamping block and the server. The clamping block is used to be squeezed by the inner wall of the accommodating cavity and retracted when the server is inserted into the accommodating cavity, and to pop out and engage with the clamping portion under the action of the elastic force of the elastic member after the server is inserted into place.

9. The liquid cooling system according to claim 8, characterized in that: The server is provided with a handle, and the force-bearing area inside the handle is provided with a push switch that is transmission-connected to the clamping block. The push switch is used to be pressed when the force-bearing area is subjected to tension to drive the clamping block to rotate and disengage from the clamping part. The handle is used to drive the server to rise and move it out of the accommodating cavity when the force-bearing area is subjected to tension.

10. The liquid cooling system according to claim 9, characterized in that: The push switch and the clamping block are connected via a pull belt transmission.

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