Liquid cooling heat dissipation unit, liquid cooling heat dissipation device, and server

Abstract

The present disclosure relates to the technical field of liquid cooling heat dissipation devices, and discloses a liquid cooling heat dissipation unit, a liquid cooling heat dissipation device, and a server. The liquid cooling heat dissipation unit comprises a liquid cooling plate and a supporting plate. The liquid cooling plate is provided with a liquid cooling cavity, a liquid inlet, and a liquid outlet, and the liquid inlet and the liquid outlet are both in communication with the liquid cooling cavity. The supporting plate is configured to be connected to a component to be cooled, and the liquid cooling plate is connected to the side of the supporting plate facing the component. The liquid cooling heat dissipation unit of the present disclosure has high overall strength and is not easily damaged.

Description

Liquid cooling unit, liquid cooling device and server

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority and benefits of the Chinese patent application filed with the China Patent Office on December 28, 2023, with application number 202311829963.8, and entitled “Liquid Cooling Unit, Liquid Cooling Device and Server”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of liquid cooling and heat dissipation devices, and in particular to a liquid cooling and heat dissipation unit, a liquid cooling and heat dissipation device, and a server. Background Art

[0004] When faced with scenarios requiring high computing power, servers are often equipped with many GPU (graphics processing unit) chips. While these GPU chips meet the computing power requirements, they also tend to generate a lot of heat due to excessive power consumption. Using air-cooled heat sinks to dissipate heat from GPU chips is ineffective, and air-cooled heat sinks have strict requirements on height, number of fans, and power, which can easily increase the height of the server chassis. In contrast, the specific heat capacity of liquid is much greater than that of air, so using liquid-cooled heat sinks is more effective than air-cooled heat sinks. Liquid-cooled heat sinks are also lower in height than air-cooled heat sinks, taking up less space within the server chassis.

[0005] An existing liquid cooling heat dissipation device includes multiple liquid cooling plates, a water inlet system and a water outlet system. The liquid cooling plate includes an aluminum alloy cover plate and an aluminum alloy bottom plate. The aluminum alloy cover plate and the aluminum alloy bottom plate are installed together to form a cavity. Water inlets connected to the cavity are respectively provided at both ends of the liquid cooling plate. The water inlets are connected to the water inlet system and the water outlet system through rubber hoses. The aluminum alloy bottom plates of each liquid cooling plate are respectively installed on the corresponding GPU chip by spring screws. The overall strength of the liquid cooling heat dissipation device is relatively low and it is easily damaged during disassembly and installation.

[0006] Summary of the Invention

[0007] In view of this, the present disclosure provides a liquid cooling unit, a liquid cooling device, and a server to solve the problem that the liquid cooling device has low strength and is easily damaged.

[0008] In a first aspect, the present disclosure provides a liquid-cooled heat dissipation unit, comprising a liquid-cooling plate body and a support plate; the liquid-cooling plate body is provided with a liquid-cooling cavity, a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both connected to the liquid-cooling cavity; the support plate is suitable for being connected to a component to be cooled, and the liquid-cooling plate body is connected to the side of the support plate facing the component to be cooled.

[0009] In some embodiments, a positioning portion is protruded from the liquid cooling plate body, a positioning cavity is provided in the positioning portion, the positioning cavity is connected to the liquid cooling cavity, and the liquid inlet and the liquid outlet are both connected to the liquid cooling cavity through the positioning cavity; a corresponding positioning hole is provided on the support plate, and the positioning portion is connected in the positioning hole.

[0010] In some embodiments, the positioning hole is a through hole. After the liquid cooling plate body and the support plate are connected in place, the top of the positioning portion facing away from the liquid cooling plate body and the top of the support plate facing away from the component to be cooled are in the same plane.

[0011] In some embodiments, a first connecting hole is provided on the liquid cooling plate body, and a second connecting hole is provided on the support plate. The first connecting hole and the second connecting hole are correspondingly arranged and connected by a first fastener.

[0012] In some embodiments, the liquid cooling plate body is made of copper plate.

[0013] In some embodiments, the support plate is provided with a recessed groove that is recessed toward the component to be cooled. A third connecting hole is provided on the bottom of the recess. The third connecting hole is connected to the component to be cooled via a second fastener.

[0014] In some embodiments, the outer periphery of the support plate is provided with a peripheral wall extending toward the component to be cooled, the peripheral wall is provided with a limiting groove, and the liquid cooling plate body is arranged in the limiting groove.

[0015] In a second aspect, the present disclosure further provides a liquid cooling device, comprising:

[0016] The above-mentioned liquid cooling heat dissipation unit comprises at least two groups arranged in sequence along the first direction, each group comprising at least two liquid cooling heat dissipation units arranged in sequence along the second direction;

[0017] a first bracket extending along the second direction, disposed between two adjacent groups of the liquid-cooling and heat-dissipating units, and connected to each of the liquid-cooling and heat-dissipating units in the two adjacent groups;

[0018] A liquid inlet system, wherein the liquid inlet of each liquid cooling unit is connected to the liquid inlet system;

[0019] A liquid outlet system, wherein the liquid outlet of each liquid cooling unit is connected to the liquid outlet system;

[0020] The first direction is perpendicular to the second direction.

[0021] In some embodiments, in the first direction, the liquid inlet system and the liquid outlet system are both arranged on one side of at least two groups of the liquid-cooling heat dissipation units.

[0022] In some embodiments, the liquid-cooled heat dissipation unit has two groups, a group away from the liquid inlet system and the liquid outlet system is a first liquid-cooled heat dissipation unit, and a group close to the liquid inlet system and the liquid outlet system is a second liquid-cooled heat dissipation unit; the liquid inlet of the first liquid-cooled heat dissipation unit is connected to the second liquid-cooled heat dissipation unit corresponding to the first direction through a first liquid inlet pipeline, and the liquid inlet of the second liquid-cooled heat dissipation unit is connected to the liquid inlet system through a second liquid inlet pipeline; the liquid outlet of the first liquid-cooled heat dissipation unit is connected to the second liquid-cooled heat dissipation unit corresponding to the first direction through a first liquid outlet pipeline, and the liquid outlet of the second liquid-cooled heat dissipation unit is connected to the liquid outlet system through a second liquid outlet pipeline.

[0023] In some embodiments, it further includes:

[0024] a second bracket, the second bracket extending along the second direction and connected to one end of a group of the first liquid-cooling heat dissipation units away from the liquid inlet system;

[0025] A third bracket extends along the second direction and is connected to one end of a group of second liquid-cooling heat dissipation units close to the liquid inlet system.

[0026] In some embodiments, the support plate of the first liquid-cooled heat dissipation unit is respectively provided with a first connecting block and a second connecting block protruding from both ends in the first direction, and the support plate of the second liquid-cooled heat dissipation unit is respectively provided with a third connecting block and a fourth connecting block protruding from both ends in the first direction, and the first connecting block, the second connecting block, the third connecting block and the fourth connecting block are all arranged at one end close to the component to be cooled; one side of the first bracket in the first direction is connected to the first connecting blocks of a group of the first liquid-cooled heat dissipation units, and the other side is connected to the third connecting blocks of a group of the second liquid-cooled heat dissipation units; the second bracket is connected to the second connecting blocks of a group of the first liquid-cooled heat dissipation units; the third bracket is connected to the fourth connecting blocks of a group of the second liquid-cooled heat dissipation units.

[0027] In some embodiments, the first bracket has a first protrusion that protrudes in a direction away from the component to be cooled, and the first liquid inlet pipeline and the first liquid outlet pipeline are both provided at the first protrusion.

[0028] In some embodiments, the third bracket has a second protrusion that protrudes in a direction away from the component to be heat dissipated, and the second liquid inlet pipeline and the second liquid outlet pipeline are both arranged at the second protrusion.

[0029] In some embodiments, a lifting handle is further included, with both ends detachably connected to the second bracket and the third bracket respectively. A mounting groove is provided in the middle position of the lifting handle, and the mounting groove is detachably connected to the first bracket. The lifting handle is divided into two handle parts by the mounting groove, and an operating gap is formed between the handle part and the support plate for easy operation.

[0030] In some embodiments, a first avoidance groove and a second avoidance groove are provided on a side of the support plate of the first liquid-cooling heat dissipation unit facing the component to be cooled, the first avoidance groove and the second avoidance groove are spaced apart in the second direction, one end of the first liquid inlet pipeline is provided in the first avoidance groove, and one end of the first liquid outlet pipeline is provided in the second avoidance groove;

[0031] The second liquid-cooled heat dissipation unit is provided with a third avoidance groove and a fourth avoidance groove on the side facing the component to be cooled, and the third avoidance groove and the fourth avoidance groove are arranged at intervals in the second direction, and the second liquid-cooled heat dissipation unit is provided with the third avoidance groove and the fourth avoidance groove at both ends in the first direction; the other end of the first liquid inlet pipeline is arranged in the third avoidance groove close to the first liquid-cooled heat dissipation unit, and the other end of the first liquid outlet pipeline is arranged in the fourth avoidance groove close to the first liquid-cooled heat dissipation unit; one end of the second liquid inlet pipeline is arranged in the third avoidance groove close to the liquid inlet system, and one end of the second liquid outlet pipeline is arranged in the fourth avoidance groove close to the liquid outlet system.

[0032] In some embodiments, the liquid inlet system includes a liquid inlet separator and a liquid inlet joint, the liquid inlet separator is connected to an end of the second liquid inlet pipeline away from the second liquid cooling unit, and is connected to the liquid inlet joint through a third liquid inlet pipeline;

[0033] The liquid outlet system includes a liquid outlet collector and a liquid outlet joint, the liquid outlet collector is connected to an end of the second liquid outlet pipeline away from the second liquid cooling and heat dissipation unit, and is connected to the liquid outlet joint through a third liquid outlet pipeline;

[0034] In the first direction, the liquid inlet separator is arranged between the liquid outlet collector and the second liquid cooling heat dissipation unit; a fifth avoidance groove is provided on the liquid inlet separator, and the second liquid outlet pipeline passes through the fifth avoidance groove and is connected to the liquid outlet collector.

[0035] In some embodiments, it also includes a first fixing member, a second fixing member and a third fixing member; the first fixing member is fixedly connected to one end of the liquid inlet separator and the corresponding end of the liquid outlet collector, and is suitable for connecting to the component to be cooled; the second fixing member is fixedly connected to the other end of the liquid inlet separator, and is suitable for connecting to the component to be cooled; the third fixing member is fixedly connected to the liquid inlet separator and the liquid outlet collector, is located between the first fixing member and the second fixing member, and is suitable for connecting to the component to be cooled on the side of the liquid outlet collector away from the liquid outlet collector.

[0036] In some embodiments, the liquid cooling device further includes a fixing block, which is suitable for being connected to a chassis of a server, and the liquid inlet connector and the liquid outlet connector are both connected to the fixing block.

[0037] In a third aspect, the present disclosure further provides a server comprising a component to be cooled and the above-mentioned liquid cooling device, wherein the component to be cooled is a graphics processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] FIG1 is a schematic diagram of a liquid cooling unit according to an embodiment of the present disclosure;

[0040] FIG2 is an exploded view of the installation of a liquid cooling unit according to an embodiment of the present disclosure;

[0041] FIG3 is a partial cross-sectional view of a liquid cooling plate body of a liquid cooling heat dissipation unit according to an embodiment of the present disclosure;

[0042] FIG4 is a schematic structural diagram of a liquid cooling device according to an embodiment of the present disclosure;

[0043] FIG5 is a schematic diagram of a partial structure of a liquid cooling device according to an embodiment of the present disclosure;

[0044] FIG6 is a schematic diagram of liquid circulation in a liquid cooling device according to an embodiment of the present disclosure;

[0045] FIG7 is a schematic diagram of a liquid inlet system and a liquid outlet system of a liquid cooling device according to an embodiment of the present disclosure;

[0046] FIG8 is a schematic diagram of a fixing block of a liquid cooling device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0047] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present disclosure.

[0048] The following describes embodiments of the present disclosure in conjunction with FIG. 1 to FIG. 8 .

[0049] According to an embodiment of the present disclosure, on the one hand, as shown in Figures 1 to 3, a liquid-cooled heat dissipation unit is provided, including a liquid-cooled plate body 1 and a support plate 2; the liquid-cooled plate body 1 is provided with a liquid-cooled cavity 101, a liquid inlet 102 and a liquid outlet, and the liquid inlet 102 and the liquid outlet are both connected to the liquid-cooled cavity 101; the support plate 2 is suitable for being connected to a component to be cooled, and the liquid-cooled plate body 1 is connected to the side of the support plate 2 facing the component to be cooled.

[0050] The cooling plate body 1 of each liquid-cooling heat dissipation unit is connected to a support plate 2. This support plate 2 not only securely connects the cooling plate body 1 to the component to be cooled, but also allows for direct contact between the cooling plate body 1 and the component to dissipate heat. This also enhances the overall strength of the cooling unit, making it less susceptible to damage during installation and removal. Furthermore, because both the support plate 2 and the cooling plate body 1 are plate-shaped, the overall height of the cooling unit is relatively low, saving space in the vertical direction and meeting the requirements for liquid cooling solutions for graphics displays in smaller 1U servers.

[0051] Specifically, in some embodiments, the component to be cooled may be a GPU (graphics processing unit), the liquid cooling unit may be a water cooling unit, and the coolant may be water.

[0052] In some embodiments, a positioning portion 103 is protruded from the liquid cooling plate body 1, and a positioning cavity 104 is provided in the positioning portion 103. The positioning cavity 104 is connected to the liquid cooling cavity 101, and the liquid inlet 102 and the liquid outlet are both connected to the liquid cooling cavity 101 through the positioning cavity 104; a corresponding positioning hole 21 is provided on the support plate 2, and the positioning portion 103 is connected to the positioning hole 21.

[0053] The positioning portion 103 not only serves to position the liquid cooling plate body 1 and the support plate 2 during installation, simplifying installation, but also provides a larger space for the liquid inlet 102 and the liquid outlet, thereby allowing for relatively large liquid inlet 102 and liquid outlet to be provided without increasing the thickness of the liquid cooling plate body 1. Furthermore, the thickness of the positioning cavity 104 is greater than that of the liquid cooling cavity 101, and the liquid inlet 102 and the liquid outlet are connected to the positioning cavity 104. Both inlet and outlet of the liquid can be buffered in the positioning cavity 104, facilitating the entry and exit of the cooling liquid and enhancing the fluidity of the cooling liquid.

[0054] Specifically, in some embodiments, a partition is further provided in the positioning cavity 104, one end of which is connected between the liquid inlet 102 and the liquid outlet, dividing the portion of the positioning cavity 104 near the liquid inlet 102 and the liquid outlet into a first cavity and a second cavity, both of which are connected to the liquid cooling cavity 101; alternatively, the first cavity and the second cavity may be connected or not; the first cavity is connected to the liquid inlet 102, and the second cavity is connected to the liquid outlet. The provision of the partition can prevent the liquid entering the liquid inlet 102 from being directly discharged from the liquid outlet, further enhancing the fluidity of the cooling liquid while preventing large differences in the temperature of the cooling liquid inside the liquid cooling plate body 1, thereby avoiding uneven heat dissipation.

[0055] In some embodiments, the positioning hole 21 is a through hole. After the liquid cooling plate body 1 and the support plate 2 are connected in place, the top of the positioning portion 103 facing away from the liquid cooling plate body 1 and the top of the support plate 2 facing away from the component to be cooled are in the same plane.

[0056] The top of the positioning portion 103 facing away from the liquid cooling plate body 1 and the top of the support plate 2 facing away from the component to be cooled are in the same plane, ensuring the flatness of the top of the liquid cooling unit facing away from the component to be cooled, and preventing the protrusions from being scratched or interfered with other limiting components.

[0057] Alternatively, the positioning hole 21 may be a blind hole, with the opening facing downward toward the component to be dissipated heat.

[0058] In some embodiments, a first connection hole 105 is provided on the liquid cooling plate body 1, and a second connection hole 22 is provided on the support plate 2. The first connection hole 105 and the second connection hole 22 are correspondingly provided and connected by a first fastener.

[0059] The first fastener can securely connect the liquid cooling plate body 1 and the support plate 2 through the first connection hole 105 and the second connection hole 22. Specifically, the first fastener can be a fastening structure that is easy to disassemble, such as a screw or bolt, or a fastening structure that is not easy to disassemble, such as a rivet.

[0060] In some embodiments, the liquid cooling plate body 1 is made of copper plate.

[0061] Copper has a larger specific heat capacity and a better heat dissipation effect. The positioning portion 103 and the positioning hole 21 can also be combined to set the height of the entire liquid cooling unit between 8mm and 10mm, preferably 9mm, to save a lot of space inside the server where the components to be cooled are installed.

[0062] In some embodiments, the support plate 2 is provided with a sinking groove 23 that is recessed toward the component to be cooled. A third connecting hole 231 is provided at the bottom of the sinking groove 23. The third connecting hole 231 is connected to the component to be cooled via a second fastener.

[0063] The setting of the sinking groove 23 can sink the second fastener into the inside of the support plate 2, preventing the second fastener from protruding from the top of the support plate 2 and preventing the protruding second fastener from increasing the overall height of the liquid cooling unit.

[0064] Specifically, the second fastener can be a fastening structure that is easy to disassemble, such as a screw or bolt, or a fastening structure that is not easy to disassemble, such as a rivet. Preferably, the third connection hole 231 is detachably connected to the component to be dissipated through the second fastener.

[0065] In some embodiments, the outer periphery of the support plate 2 is provided with a peripheral wall extending toward the component to be cooled. The peripheral wall is provided with a limiting groove, and the liquid cooling plate body 1 is disposed in the limiting groove.

[0066] The provision of the peripheral wall can form the support plate 2 into a cover shape, which can cooperate with the heat dissipation component to form an installation cavity to better protect and support the liquid cooling plate body 1. The provision of the limiting groove can limit and fix the liquid cooling plate body 1.

[0067] According to an embodiment of the present disclosure, on the other hand, as shown in Figures 1 to 8, a liquid cooling device is also provided, comprising the above-mentioned liquid cooling unit, a first bracket 3, a liquid inlet system 4, and a liquid outlet system 5. The liquid cooling unit comprises at least two groups arranged in sequence along a first direction, each group having at least two liquid cooling units arranged in sequence along a second direction; each liquid cooling unit comprises a liquid cooling plate body 1 and a support plate 2; the liquid cooling plate body 1 is provided with a liquid cooling chamber 101, a liquid inlet 102, and a liquid outlet, the liquid inlet 102 and the liquid outlet both being connected to the liquid cooling chamber 101; the support plate 2 is suitable for connecting to a component to be cooled, and the liquid cooling plate body 1 is connected to the side of the support plate 2 facing the component to be cooled. The first bracket 3 extends along the second direction, is arranged between two adjacent groups of liquid cooling units, and is connected to each liquid cooling unit in the two adjacent groups; the liquid inlet 102 of each liquid cooling unit is connected to the liquid inlet system 4; the liquid outlet of each liquid cooling unit is connected to the liquid outlet system 5; wherein the first direction is perpendicular to the second direction.

[0068] The liquid inlet system 4 can fill each liquid-cooling heat dissipation unit with coolant through the liquid inlet 102 and drain the heat-absorbing coolant from each liquid-cooling heat dissipation unit through the liquid outlet, thereby achieving the heat dissipation effect of the liquid-cooling heat dissipation unit. The provision of the first bracket 3 can connect two adjacent groups of liquid-cooling heat dissipation units in the first direction into a single unit, greatly enhancing the overall strength of the liquid-cooling heat dissipation device and making the liquid-cooling heat dissipation units less susceptible to damage during installation and removal.

[0069] In some embodiments, in the first direction, the liquid inlet system 4 and the liquid outlet system 5 are both arranged on one side of at least two groups of liquid cooling and heat dissipation units.

[0070] In related art, the liquid inlet system 4 and the liquid outlet system 5 are respectively arranged on either side of at least two sets of liquid cooling and heat dissipation units. The liquid outlet manifold 51 of the liquid outlet system 5 requires a long hose to connect to the liquid outlet connector 52, which increases the risk of scratching components in the server. In this embodiment, the liquid inlet system 4 and the liquid outlet system 5 are both arranged on one side of at least two sets of liquid cooling and heat dissipation units. The liquid outlet manifold 51 of the liquid outlet system 5 and the liquid outlet connector 52 do not require a long hose to connect, only a pipe of an appropriate length is required. This reduces the space occupied by the entire liquid cooling and heat dissipation device and also reduces the risk of scratching components. The liquid inlet distributor 41 of the liquid inlet system 4 is located close to the liquid inlet connector 42.

[0071] In some embodiments, there are two groups of liquid-cooled heat dissipation units, one group away from the liquid inlet system 4 and the liquid outlet system 5 is the first liquid-cooled heat dissipation unit 6, and the group close to the liquid inlet system 4 and the liquid outlet system 5 is the second liquid-cooled heat dissipation unit 7; the liquid inlet 102 of the first liquid-cooled heat dissipation unit 6 is connected to the second liquid-cooled heat dissipation unit 7 corresponding in the first direction through the first liquid inlet pipeline 8, and the liquid inlet 102 of the second liquid-cooled heat dissipation unit 7 is connected to the liquid inlet system 4 through the second liquid inlet pipeline 9; the liquid outlet of the first liquid-cooled heat dissipation unit 6 is connected to the second liquid-cooled heat dissipation unit 7 corresponding in the first direction through the first liquid outlet pipeline 10, and the liquid outlet of the second liquid-cooled heat dissipation unit 7 is connected to the liquid outlet system 5 through the second liquid outlet pipeline 11.

[0072] The second liquid inlet pipeline 9 and the first liquid inlet pipeline 8 connect the liquid inlets of the second liquid-cooling heat dissipation unit 7 and the first liquid-cooling heat dissipation unit 6 in sequence, and the first liquid outlet pipeline 10 and the second liquid outlet pipeline 11 connect the liquid outlets of the first liquid-cooling heat dissipation unit 6 and the second liquid-cooling heat dissipation unit 7 in sequence, which can save pipeline length and simplify the pipeline structure.

[0073] Specifically, the liquid cooling plate body 1 of the second liquid cooling heat dissipation unit 7 is provided with a liquid inlet 102 and a liquid outlet at both ends in the first direction, and the liquid inlet 102 at one end corresponds to the position of the liquid outlet at the other end. The liquid cooling plate body 1 of the first liquid cooling heat dissipation unit 6 is provided with a liquid inlet 102 and a liquid outlet at one end facing the second liquid cooling heat dissipation unit 7, and the position of the liquid inlet 102 of the first liquid cooling heat dissipation unit 6 corresponds to the position of the liquid outlet on the second liquid cooling heat dissipation unit 7 facing the first liquid cooling heat dissipation unit 6.

[0074] A third liquid-cooling heat dissipation unit may be provided between the first liquid-cooling heat dissipation unit 6 and the second liquid-cooling heat dissipation unit 7. The third liquid-cooling heat dissipation unit has a liquid inlet 102 and a liquid outlet at both ends in the first direction. The third liquid-cooling heat dissipation unit is connected in series via pipes between the first liquid-cooling heat dissipation unit 6 and the second liquid-cooling heat dissipation unit 7. The third liquid-cooling heat dissipation unit may be provided in a single group or in multiple groups spaced apart along the first direction.

[0075] In some embodiments, a second bracket 12 and a third bracket 13 are also included; the second bracket 12 extends along the second direction and is connected to one end of a group of first liquid-cooled heat dissipation units 6 away from the liquid inlet system 4; the third bracket 13 extends along the second direction and is connected to one end of a group of second liquid-cooled heat dissipation units 7 close to the liquid inlet system 4.

[0076] The second bracket 12 can connect a group of first liquid-cooled heat dissipation units 6 into one, further enhancing the connection strength and overall strength of a group of first liquid-cooled heat dissipation units 6; the third bracket 13 can connect a group of second liquid-cooled heat dissipation units 7 into one, further enhancing the connection strength and overall strength of a group of second liquid-cooled heat dissipation units 7.

[0077] Specifically, the third bracket 13 is fixedly connected to the liquid inlet system 4 or the liquid outlet system 5 .

[0078] In some embodiments, the support plate 2 of the first liquid-cooled heat dissipation unit 6 has a first connecting block 61 and a second connecting block 62 protruding from both ends in the first direction, and the support plate 2 of the second liquid-cooled heat dissipation unit 7 has a third connecting block 71 and a fourth connecting block 72 protruding from both ends in the first direction. The first connecting block 61, the second connecting block 62, the third connecting block 71 and the fourth connecting block 72 are all arranged at one end close to the component to be cooled; one side of the first bracket 3 in the first direction is connected to the first connecting block 61 of a group of first liquid-cooled heat dissipation units 6, and the other side is connected to the third connecting block 71 of a group of second liquid-cooled heat dissipation units 7; the second bracket 12 is connected to the second connecting block 62 of a group of first liquid-cooled heat dissipation units 6; the third bracket 13 is connected to the fourth connecting block 72 of a group of second liquid-cooled heat dissipation units 7.

[0079] The first connecting block 61, the second connecting block 62, the third connecting block 71 and the fourth connecting block 72 are all arranged at one end close to the component to be cooled, which can reduce the connection height of the first bracket 3, the second bracket 12 and the third bracket 13, and avoid the first bracket 3, the second bracket 12 and the third bracket 13 protruding from the top of the liquid cooling device after connection.

[0080] Specifically, in some embodiments, there are two first connecting blocks 61, disposed on either side of the support plate 2 of the first liquid-cooling heat dissipation unit 6 along the second direction; two second connecting blocks 62, disposed on either side of the support plate 2 of the first liquid-cooling heat dissipation unit 6 along the second direction; two third connecting blocks 71, disposed on either side of the support plate 2 of the second liquid-cooling heat dissipation unit 7 along the second direction; and two fourth connecting blocks 72, disposed on either side of the support plate 2 of the second liquid-cooling heat dissipation unit 7 along the second direction. A fourth connecting hole is defined on the first connecting block 61, and a corresponding fifth connecting hole is defined on the first bracket 3. The fourth and fifth connecting holes are connected by a third fastener. The third fastener can be a fastening structure such as a screw or bolt for easy disassembly, or a fastening structure such as a rivet for difficult disassembly. The second connecting block 62 is defined by a sixth connecting hole, and a corresponding seventh connecting hole is defined on the second bracket 12. The sixth and seventh connecting holes are connected by a fourth fastener. The fourth fastener can be a fastening structure such as a screw or bolt for easy disassembly, or a fastening structure such as a rivet for difficult disassembly. An eighth connecting hole is provided on the third connecting block 71, and a corresponding ninth connecting hole is provided on the first bracket 3. The eighth and ninth connecting holes are connected by a fifth fastener. The fifth fastener can be a fastening structure such as a screw or bolt that facilitates disassembly, or a fastening structure such as a rivet that is difficult to disassemble. A tenth connecting hole is provided on the fourth connecting block 72, and an eleventh connecting hole is provided on the third bracket 13. The tenth and eleventh connecting holes are connected by a sixth fastener. The sixth fastener can be a fastening structure such as a screw or bolt that facilitates disassembly, or a fastening structure such as a rivet that is difficult to disassemble.

[0081] In some embodiments, the first bracket 3 has a first protrusion 31 protruding in a direction away from the component to be cooled. The first liquid inlet pipeline 8 and the first liquid outlet pipeline 10 are both provided at the first protrusion 31 .

[0082] The first protrusion can avoid, limit and protect the first liquid inlet pipeline 8 and the first liquid outlet pipeline 10.

[0083] In some embodiments, the third bracket 13 has a second protrusion 131 protruding in a direction away from the component to be cooled. The second liquid inlet pipeline 9 and the second liquid outlet pipeline 11 are both provided at the second protrusion 131 .

[0084] The second protrusion can avoid, limit and protect the second liquid inlet pipeline 9 and the second liquid outlet pipeline 11.

[0085] Specifically, the first bracket 3 , the second bracket 12 and the third bracket 13 can all be formed by processing sheet metal parts.

[0086] In some embodiments, a lifting handle 14 is further included, the two ends of which are detachably connected to the second bracket 12 and the third bracket 13 respectively. A mounting groove 141 is provided in the middle position of the lifting handle 14, and the mounting groove 141 is detachably connected to the first bracket 3. The lifting handle 14 is divided into two handle portions 142 by the mounting groove 141, and an operating gap is formed between the handle portion 142 and the support plate 2 for easy operation.

[0087] The provision of a lifting handle 14 facilitates operation by maintenance personnel. The two ends of the lifting handle 14 are connected to the second bracket 12 and the third bracket 13, respectively. A mounting groove 141 is provided in the middle. Through the mounting groove 141, the lifting handle 14 is detachably connected to the first bracket 3, avoiding damage to the liquid cooling unit. A clearance is formed between the handle portion 142 and the support plate 2, allowing maintenance personnel to pass their fingers or lifting tools through.

[0088] Specifically, in some embodiments, the lifting handle 14 can be formed by processing a sheet metal part, which has a simple structure and occupies less space.

[0089] In some embodiments, a first avoidance groove and a second avoidance groove are provided on the support plate 2 of the first liquid-cooling heat dissipation unit 6 on the side facing the component to be dissipated, and the first avoidance groove and the second avoidance groove are spaced apart in the second direction. One end of the first liquid inlet pipe 8 is provided in the first avoidance groove, and one end of the first liquid outlet pipe 10 is provided in the second avoidance groove; a third avoidance groove 24 and a fourth avoidance groove 25 are provided on the side facing the component to be dissipated, and the third avoidance groove 24 and the fourth avoidance groove 25 are spaced apart in the second direction, and the second liquid-cooling heat dissipation unit 7 is provided with a third avoidance groove 24 and a fourth avoidance groove 25 at both ends in the first direction; the other end of the first liquid inlet pipe 8 is provided in the third avoidance groove 24 close to the first liquid-cooling heat dissipation unit 6, and the other end of the first liquid outlet pipe 10 is provided in the fourth avoidance groove 25 close to the first liquid-cooling heat dissipation unit 6; one end of the second liquid inlet pipe 9 is provided in the third avoidance groove 24 close to the liquid inlet system 4, and one end of the second liquid outlet pipe 11 is provided in the fourth avoidance groove 25 close to the liquid outlet system 5.

[0090] The provision of the first and second avoidance grooves allows for the avoidance of the first liquid inlet pipe 8 and the first liquid outlet pipe 10, respectively, thereby reducing the overall height of the first liquid cooling and heat dissipation unit 6. The provision of the third and fourth avoidance grooves 24 and 25 allows for the avoidance of the first liquid inlet pipe 8 and the first liquid outlet pipe 10, respectively, thereby reducing the overall height of the second liquid cooling and heat dissipation unit 7; and also allows for the avoidance of the second liquid inlet pipe 9 and the second liquid outlet pipe 11, respectively, thereby reducing the overall height of the second liquid cooling and heat dissipation unit 7.

[0091] Specifically, in some embodiments, a first protrusion protrudes from one end of the support plate 2 of the first liquid-cooling heat dissipation unit 6. The first protrusion is disposed between the first and second avoidance grooves, thereby supporting and increasing the strength of the lifting handle 14. A second protrusion protrudes from both ends of the support plate 2 of the second liquid-cooling heat dissipation unit 7. The second protrusion is disposed between the third and fourth avoidance grooves 24 and 25, thereby supporting and increasing the strength of the lifting handle 14.

[0092] In some embodiments, the liquid inlet system 4 includes a liquid inlet separator 41 and a liquid inlet joint 42, the liquid inlet separator 41 is connected to the end of the second liquid inlet pipeline 9 away from the second liquid cooling heat dissipation unit 7, and is connected to the liquid inlet joint 42 through the third liquid inlet pipeline 43; the liquid outlet system 5 includes a liquid outlet collector 51 and a liquid outlet joint 52, the liquid outlet collector 51 is connected to the end of the second liquid outlet pipeline 11 away from the second liquid cooling heat dissipation unit 7, and is connected to the liquid outlet joint 52 through the third liquid outlet pipeline 53; in the first direction, the liquid inlet separator 41 is arranged between the liquid outlet collector 51 and the second liquid cooling heat dissipation unit 7; a fifth avoidance groove 44 is provided on the liquid inlet separator 41, and the second liquid outlet pipeline 11 is connected to the liquid outlet collector 51 through the fifth avoidance groove 44.

[0093] The fifth avoidance groove 44 facilitates the communication between the second liquid outlet pipeline 11 and the liquid outlet collector 51 , so as to facilitate the connection using the regular second liquid outlet pipeline 11 , and can also limit and fix the liquid inlet separator 41 and the liquid outlet collector 51 to a certain extent.

[0094] Alternatively, in the first direction, the liquid outlet collector 51 is arranged between the liquid inlet separator 41 and the second liquid cooling heat dissipation unit 7, and a fifth avoidance groove 44 is provided on the liquid outlet collector 51, and the second liquid inlet pipeline 9 passes through the fifth avoidance groove 44 and is connected to the liquid inlet separator 41.

[0095] Specifically, in some embodiments, the second liquid inlet pipeline 9 is fixed to the liquid inlet separator 41 by welding, and the second liquid outlet pipeline 11 is fixed to the liquid outlet collector 51 by welding.

[0096] Specifically, in some embodiments, the liquid inlet separator 41 is a tubular structure, preferably a rectangular tube extending along the second direction, having a first inlet and multiple first outlets, the first inlet is connected to the liquid inlet connector 42 through the third liquid inlet pipeline 43, the number of first outlets is consistent with the number of second liquid-cooled heat dissipation units 7, and each first outlet is connected to the liquid inlet 102 of a second liquid-cooled heat dissipation unit 7 through the second liquid inlet pipeline 9; or the number of first outlets is greater than the number of second liquid-cooled heat dissipation units 7, and the liquid inlet 102 of each second liquid-cooled heat dissipation unit 7 is connected to the corresponding first outlet through the second liquid inlet pipeline 9, and the remaining first outlets are sealed by sealing covers. The liquid outlet collector 51 is a rectangular tubular structure, preferably a rectangular tube extending along the second direction, having a second outlet and multiple second inlets. The second outlet is connected to the liquid outlet joint 52 through the third liquid outlet pipeline 53. The number of second inlets is consistent with the number of second liquid-cooling heat dissipation units 7, and each second inlet is connected to the liquid outlet of a second liquid-cooling heat dissipation unit 7 through the second liquid outlet pipeline 11; or the number of second inlets is greater than the number of second liquid-cooling heat dissipation units 7, and the liquid outlet of each second liquid-cooling heat dissipation unit 7 is connected to the corresponding second inlet through the second liquid outlet pipeline 11, and the remaining second inlets are sealed by sealing covers.

[0097] In some embodiments, it also includes a first fixing member 15, a second fixing member 16 and a third fixing member 17; the first fixing member 15 is fixedly connected to one end of the liquid inlet separator 41 and the corresponding end of the liquid outlet collector 51, and is suitable for connecting to the component to be cooled; the second fixing member 16 is fixedly connected to the other end of the liquid inlet separator 41, and is suitable for connecting to the component to be cooled; the third fixing member 17 is fixedly connected to the liquid inlet separator 41 and the liquid outlet collector 51, is located between the first fixing member 15 and the second fixing member 16, and is suitable for connecting to the component to be cooled on the side of the liquid outlet collector 51 away from the liquid outlet collector 51.

[0098] The first fixing member 15, the second fixing member 16 and the third fixing member 17 are distributed in a triangle, which can not only firmly connect the liquid outlet collector 51 and the liquid inlet separator 41 to the board of the component to be cooled, but also firmly connect the liquid outlet collector 51 and the liquid inlet separator 41.

[0099] Specifically, in some embodiments, the first fixing member 15 includes a first fixing plate and a second fixing plate. The two ends of the first fixing plate are respectively welded to one end of the liquid inlet separator 41 and one end of the liquid outlet collector 51. The second fixing plate has one end welded to the first fixing plate, and the other end is bent and abutted against the board of the component to be cooled. The second fixing plate is provided with a twelfth connecting hole, which is connected to the board of the component to be cooled via a seventh fastener. The second fixing member 16 has one end welded to the other end of the liquid inlet separator 41, and the other end is bent and abutted against the board of the component to be cooled. The second fixing member 16 has a thirteenth connecting hole, which is connected to the board of the component to be cooled via an eighth fastener. The third fixing member 17 includes a third fixing plate and a fourth fixing plate. The third fixing plate is welded to the top ends of the inlet liquid separator 41 and the outlet liquid collector 51. One end of the fourth fixing plate is welded to the third fixing plate, and the other end is bent to abut against the board of the component to be cooled. The fourth fixing plate is provided with a fourteenth connecting hole, which is connected to the board of the component to be cooled via a ninth fastener. A fourth fixing member is also included. The fourth fixing plate is a sheet-like structure and is welded to the top ends of the inlet liquid separator 41 and the outlet liquid collector 51.

[0100] In some embodiments, the liquid cooling device further includes a fixing block 18 , which is suitable for being connected to a chassis of a server, and the liquid inlet connector 42 and the liquid outlet connector 52 are both connected to the fixing block 18 .

[0101] The fixing block 18 is connected to the front window of the chassis of the server to fix the liquid inlet connector 42 and the liquid outlet connector 52. Preferably, the liquid inlet connector 42 and the liquid outlet connector 52 can both be quick-connect connectors.

[0102] According to an embodiment of the present disclosure, in another aspect, a server is provided, comprising a component to be cooled and the above-mentioned liquid cooling device, wherein the component to be cooled is a graphics processor.

[0103] Specifically, there are eight graphics processors, four first liquid cooling and heat dissipation units 6 , and four second liquid cooling and heat dissipation units 7 .

[0104] Although the embodiments of the present disclosure have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present disclosure, and such modifications and variations are all within the scope defined by the appended claims.

[0105] List of reference numerals:

[0106] 1. Liquid cooling plate body;

[0107] 101, liquid cooling chamber;

[0108] 102, liquid inlet;

[0109] 103. Positioning unit;

[0110] 104, positioning cavity;

[0111] 105. First connecting hole;

[0112] 2. Support plate;

[0113] 21. Positioning hole;

[0114] 22. Second connecting hole;

[0115] 23. Sink;

[0116] 231, third connecting hole;

[0117] 24. The third avoidance slot;

[0118] 25. The fourth avoidance slot;

[0119] 3. The first bracket;

[0120] 31. first protrusion;

[0121] 4. Liquid inlet system;

[0122] 41. Liquid inlet distributor;

[0123] 42. Liquid inlet connector;

[0124] 43. The third liquid inlet pipeline;

[0125] 44. Fifth avoidance slot;

[0126] 5. Liquid outlet system;

[0127] 51. Liquid outlet and liquid collector;

[0128] 52. Liquid outlet connector;

[0129] 53. The third liquid outlet pipeline;

[0130] 6. The first liquid cooling unit;

[0131] 61. First connection block;

[0132] 62. Second connecting block;

[0133] 7. Second liquid cooling unit;

[0134] 71. The third connection block;

[0135] 72. Fourth connection block;

[0136] 8. The first liquid inlet pipeline;

[0137] 9. Second liquid inlet pipeline;

[0138] 10. The first liquid outlet pipeline;

[0139] 11. Second liquid outlet pipeline;

[0140] 12. Second bracket;

[0141] 13. The third bracket;

[0142] 131, second protrusion;

[0143] 14. Pull handle;

[0144] 141, installation groove;

[0145] 142. Handle;

[0146] 15. First fixing member;

[0147] 16. Second fixing member;

[0148] 17. Third fixing member;

[0149] 18. Fixed block;

[0150] 181. Fixing hole.

Claims

1. A liquid cooling heat dissipation unit, characterized in that, Comprising: A liquid cooling plate body (1) provided with a liquid cooling cavity (101), a liquid inlet (102) and a liquid outlet, wherein the liquid inlet (102) and the liquid outlet are both communicated with the liquid cooling cavity (101); A support plate (2) configured to be connected to a component to be cooled, and the liquid cooling plate body (1) is connected to the support plate (2) on a side of the support plate (2) facing the component to be cooled.

2. The liquid cooling heat dissipation unit according to claim 1, wherein A positioning portion (103) protrudes from the liquid cooling plate body (1), a positioning cavity (104) is provided in the positioning portion (103), the positioning cavity (104) is communicated with the liquid cooling cavity (101), and the liquid inlet (102) and the liquid outlet are both communicated with the liquid cooling cavity (101) through the positioning cavity (104); Wherein a positioning hole (21) is correspondingly provided on the support plate (2), and the positioning portion (103) is connected in the positioning hole (21).

3. The liquid cooling heat dissipation unit according to claim 2, characterized in that, The positioning hole (21) is a through hole. When the liquid cooling plate body (1) is connected to the support plate (2), the top of the positioning portion (103) facing away from the liquid cooling plate body (1) and the top of the support plate (2) facing away from the component to be cooled are in the same plane.

4. The liquid cooling heat dissipation unit according to claim 1, wherein The liquid cooling plate body (1) is provided with a first connection hole (105), the support plate (2) is provided with a second connection hole (22), the first connection hole (105) and the second connection hole (22) are correspondingly arranged and are connected by a first fastener; And / or, the liquid cooling plate body (1) is made of a copper plate.

5. The liquid cooling heat dissipation unit according to any one of claims 1 to 4, characterized in that The support plate (2) is provided with a sinking groove (23) recessed in a direction facing the component to be cooled, a third connection hole (231) is provided on the bottom of the sinking groove (23), and the third connection hole (231) is connected to the component to be cooled by a second fastener.

6. A liquid cooling heat dissipation device, characterized in that, Comprising: The liquid cooling and heat dissipation unit according to any one of claims 1 to 6, the liquid cooling and heat dissipation unit comprising at least two groups of the liquid cooling and heat dissipation units arranged in sequence along a first direction, and each group of the liquid cooling and heat dissipation units has at least two of the liquid cooling and heat dissipation units arranged in sequence along a second direction perpendicular to the first direction; A first bracket (3) extending along the second direction and arranged between adjacent two groups of the liquid cooling and heat dissipation units And connected to each of the liquid cooling and heat dissipation units in the adjacent two groups; A liquid inlet system (4), and the liquid inlet (102) of each of the liquid cooling and heat dissipation units is communicated with the liquid inlet system (4); and A liquid outlet system (5), and the liquid outlet of each of the liquid cooling and heat dissipation units is communicated with the liquid outlet system (5).

7. The liquid cooling and heat dissipation device according to claim 6, characterized in that In the first direction, both the liquid inlet system (4) and the liquid outlet system (5) are arranged on the same side of at least two groups of the liquid cooling and heat dissipation units.

8. The liquid cooling and heat dissipation device according to claim 7, wherein, Comprising a first liquid cooling and heat dissipation unit (6) away from the liquid inlet system (4) and the liquid outlet system (5), and a second liquid cooling and heat dissipation unit (7) close to the liquid inlet system (4) and the liquid outlet system (5); The liquid inlet (102) of the first liquid cooling and heat dissipation unit (6) is communicated with the second liquid cooling and heat dissipation unit (7) corresponding in the first direction through a first liquid inlet pipeline (8), and the liquid inlet (102) of the second liquid cooling and heat dissipation unit (7) is communicated with the liquid inlet system (4) through a second liquid inlet pipeline (9); The liquid outlet of the first liquid cooling and heat dissipation unit (6) is communicated with the second liquid cooling and heat dissipation unit (7) corresponding in the first direction through a first liquid outlet pipeline (10), and the liquid outlet of the second liquid cooling and heat dissipation unit (7) is communicated with the liquid outlet system (5) through a second liquid outlet pipeline (11).

9. The liquid cooling heat dissipation device according to claim 8, wherein It further includes: A second bracket (12) extending along the second direction and connected to one end of a group of the first liquid cooling and heat dissipation units (6) away from the liquid inlet system (4); And A third bracket (13) extending along the second direction and connected to one end of a group of the second liquid cooling and heat dissipation units (7) close to the liquid inlet system (4).

10. The liquid cooling heat dissipation device according to claim 9, wherein, At both ends of the support plate (2) of the first liquid cooling and heat dissipation unit (6) in the first direction, a first connection block (61) and a second connection block (62) are respectively protruded. At both ends of the support plate (2) of the second liquid cooling and heat dissipation unit (7) in the first direction, a third connection block (71) and a fourth connection block (72) are respectively protruded. The first connection block (61), the second connection block (62), the third connection block (71), and the fourth connection block (72) are all arranged at one end close to the component to be cooled; Wherein one side of the first bracket (3) in the first direction is connected to the first connection blocks (61) of a group of the first liquid cooling And the other side is connected to the third connection blocks (71) of a group of the second liquid cooling and heat dissipation units (7). The second bracket (12) is connected to the second connection blocks (62) of a group of the first liquid cooling and heat dissipation units (6), and the third bracket (13) is connected to the fourth connection blocks (72) of a group of the second liquid cooling and heat dissipation units (7).

11. The liquid cooling and heat dissipation device according to claim 9, wherein, A first protruding portion (31) protruding in a direction away from the component to be cooled on the first bracket (3), and the first liquid inlet pipeline (8) and the first liquid outlet pipeline (10) are both arranged at the first protruding portion (31).

12. The liquid cooling heat dissipation device according to claim 11, wherein, A second protruding portion (131) protruding in a direction away from the component to be cooled on the third bracket (13), and the second liquid inlet pipeline (9) and the second liquid outlet pipeline (11) are both arranged at the second protruding portion (131).

13. The liquid cooling and heat dissipation device according to claim 9, wherein It further includes a lifting handle (14) which is detachably connected to the second bracket (12) and the third bracket (13) at both ends respectively. An installation groove (141) is provided at the middle position of the lifting handle (14), and the installation groove (141) is detachably connected to the first bracket (3). The lifting handle (14) is divided into two handle parts (142) by the installation groove (141), and an operation interval convenient for operation is formed between the handle part (142) and the support plate (2).

14. The liquid cooling and heat dissipation device according to any one of claims 8 to 13, characterized in that On one side of the support plate (2) of the first liquid cooling and heat dissipation unit (6) facing the component to be cooled, a first avoidance groove and a second avoidance groove are provided. The first avoidance groove and the second avoidance groove are arranged at intervals in the second direction. One end of the first liquid inlet pipeline (8) is arranged in the first avoidance groove, and one end of the first liquid outlet pipeline (10) is arranged in the second avoidance groove; On one side of the second liquid cooling and heat dissipation unit (7) facing the component to be cooled, a third avoidance groove (24) and a fourth avoidance groove (25) are provided. The third avoidance groove (24) and the fourth avoidance groove (25) are arranged at intervals in the second direction, and the third avoidance groove (24) and the fourth avoidance groove (25) are provided at both ends of the second liquid cooling and heat dissipation unit (7) in the first direction; The other end of the first liquid inlet pipeline (8) is arranged in the third avoidance groove (24) near the first liquid cooling and heat dissipation unit (6), and the other end of the first liquid outlet pipeline (10) is arranged in the fourth avoidance groove (25) near the first liquid cooling and heat dissipation unit (6); One end of the second liquid inlet pipeline (9) is arranged in the third avoidance ance groove (24) near the liquid inlet system (4), and one end of the second liquid outlet pipeline (11) is arranged in the fourth avoidance groove (25) near the liquid outlet system (5).

15. The liquid cooling and heat dissipation device according to any one of claims 8 to 13, characterized in that, The liquid inlet system (4) includes a liquid inlet distributor (41) and a liquid inlet connector (42). The liquid inlet distributor (41) is communicated with the end of the second liquid inlet pipeline (9) far from the second liquid cooling and heat dissipation unit (7), and is communicated with the liquid inlet connector (42) through a third liquid inlet pipeline (43); The liquid outlet system (5) includes a liquid outlet collector (51) and a liquid outlet connector (52). The liquid outlet collector (51) is communicated with the end of the second liquid outlet pipeline (11) far from the second liquid cooling and heat dissipation unit (7), and is communicated with the liquid outlet connector (52) through a third liquid outlet pipeline (53).

16. The liquid cooling heat dissipation device according to claim 15, wherein In the first direction, the liquid inlet distributor (41) is arranged between the liquid outlet collector (51) and the second liquid cooling and heat dissipation unit (7); A fifth avoidance groove (44) is provided on the liquid inlet distributor (41), and the second liquid outlet pipeline (11) passes through the fifth avoidance groove (44) to be communicated with the liquid outlet collector (51).

17. The liquid cooling and heat dissipation device according to claim 15, wherein, In the first direction, the liquid outlet collector (51) is arranged between the liquid inlet distributor (41) and the second liquid cooling and heat dissipation unit (7); A fifth avoidance groove (44) is provided on the liquid outlet collector (51), and the second liquid inlet pipeline (9) passes through the fifth avoidance groove (44) to communicate with the liquid inlet collector (41).

18. The liquid cooling and heat dissipation device according to claim 15, wherein It further includes a first fixing member (15), a second fixing member (16) and a third fixing member (17); The first fixing member (15) fixedly connects one end of the liquid inlet distributor (41) corresponding to one end of the liquid outlet collector (51), and is adapted to be connected to the component to be cooled; The second fixing member (16) is fixedly connected to the other end of the liquid inlet distributor (41), and is adapted to be connected to the component to be cooled; The third fixing member (17) fixedly connects the liquid inlet distributor (41) and the liquid outlet collector (51), is located between the first fixing member (15) and the second fixing member (16), and is adapted to be connected to the component to be cooled on the side of the liquid outlet collector (51) away from the liquid outlet collector (51).

19. The liquid cooling and heat dissipation device according to claim 18, wherein The liquid cooling heat dissipation device further includes a fixing block (18), the fixing block (18) is adapted to be connected to the chassis of the server, and both the liquid inlet joint (42) and the liquid outlet joint (52) are connected to the fixing block (18).

20. A server, characterized in that, It includes a component to be cooled and the liquid cooling heat dissipation device according to any one of claims 6 to 19, and the component to be cooled is a graphics processor.

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