Liquid cooling row monomer, liquid cooling row module and server

Abstract

The invention provides a liquid cooling row monomer, a liquid cooling row module and a server. The liquid cooling row single body is used for being connected with another liquid cooling row single body and comprises a body and two expansion joints. The body comprises a flow channel part. The two expansion joints are respectively communicated with the flow channel part, and one expansion joint is used for being assembled with the other liquid cooling row single body.

Description

Technical Field

[0001] This invention relates to a liquid cooling radiator unit, a liquid cooling radiator module, and a server. Background Technology

[0002] Most commercially available heat dissipation modules are integrated and require customized design based on different heat dissipation conditions. However, such heat dissipation modules cannot be used in different architectures or designs, thus requiring time for design and development in most cases, consuming a lot of human resources, resulting in low production efficiency and increased costs. In addition, the heat dissipation capabilities of different heat dissipation modules vary greatly, making it difficult to have a standard evaluation, so experience is needed to design a heat dissipation module that meets the requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a liquid cooling radiator unit, a liquid cooling radiator module, and a server, which can improve production efficiency, reduce production costs, and provide the required heat dissipation capabilities.

[0004] An embodiment of the present invention discloses a liquid-cooled radiator unit for connection with another liquid-cooled radiator unit, comprising a body and two expansion joints. The body includes a flow channel portion. The two expansion joints are individually connected to the flow channel portion, wherein one expansion joint is used for connection with the other liquid-cooled radiator unit.

[0005] Another embodiment of the present invention discloses a liquid cooling radiator module comprising a plurality of liquid cooling radiator units. Each of these liquid cooling radiator units includes a body and two expansion joints. The body includes a flow channel portion. The two expansion joints are individually connected to the flow channel portion. The flow channel portions of the bodies of these liquid cooling radiator units are connected together through these expansion joints.

[0006] Another embodiment of the present invention discloses a server comprising a chassis and a liquid cooling radiator module. The liquid cooling radiator module is located within the chassis and includes multiple liquid cooling radiator units. Each of these liquid cooling radiator units includes a body and two expansion connectors. The body includes a flow channel portion. The two expansion connectors are individually connected to the flow channel portion. The flow channels of these bodies of these liquid cooling radiator units are connected together through these expansion connectors.

[0007] According to the liquid cooling radiator unit, liquid cooling radiator module, and server disclosed in the above embodiments, each liquid cooling radiator unit has two expansion joints on its flow channel section, and these liquid cooling radiator units are connected together via these expansion joints to form a modular design. This allows users to select the number of liquid cooling radiator units to be assembled according to their heat dissipation requirements. Therefore, it is not necessary to spend a lot of time developing corresponding heat dissipation modules to meet different heat dissipation needs, thus improving production efficiency and reducing production costs.

[0008] The above description of the invention and the following description of the embodiments are used to demonstrate and explain the principles of the invention, and to provide a further explanation of the claims of the invention. Attached Figure Description

[0009] Figure 1 This is a partial top view of the server disclosed in the first embodiment of the present invention.

[0010] Figure 2 for Figure 1 A 3D schematic diagram of the liquid cooling radiator module.

[0011] Figure 3 for Figure 2 An exploded view of the liquid cooling radiator module.

[0012] Figure 4 for Figure 2 A cross-sectional schematic diagram of the liquid-cooled radiator unit.

[0013] Figure 5 for Figure 2 A top view of the liquid cooling radiator module.

[0014] Figure 6 for Figure 2 A side view of the liquid cooling radiator module.

[0015] Figure 7 This is a top view schematic diagram of the liquid cooling radiator module disclosed in the second embodiment of the present invention.

[0016] Figure 8 This is a three-dimensional schematic diagram of the liquid cooling radiator module disclosed in the third embodiment of the present invention.

[0017] Figure 9 for Figure 8 A top view of the liquid cooling radiator module.

[0018] The attached figures are labeled as follows:

[0019] 1: Server

[0020] 10: Chassis

[0021] 20, 20a, 20b: Liquid cooling radiator modules

[0022] 21, 21a, 21b: Liquid-cooled radiator units

[0023] 211:Ontology

[0024] 2111: Flow channel section

[0025] 2112: Fin section

[0026] 2113, 2113a, 2113b: Box body section

[0027] 21131, 21131a: First surface

[0028] 21132, 21132a: Second surface

[0029] 21133, 21133b: Third surface

[0030] 21134: Wiring Groove

[0031] 2114, 2114a, 2114b: Connecting parts

[0032] 212, 213, 212a, 213a: Expansion connectors

[0033] 2121: First docking section

[0034] 2131: Second docking section

[0035] 22,22b: First retaining element

[0036] 221: Head

[0037] 222: Neck

[0038] 23,23b: Second retaining element

[0039] 231: Locking Hole

[0040] 2311: Release Department

[0041] 2312: Card Unit

[0042] 30: Motherboard

[0043] 40: Heat source

[0044] 50: Water cooling block

[0045] 51: Liquid outlet connector

[0046] 52: Liquid inlet connector

[0047] 60: Pump

[0048] P1, P2, P3: Pipe fittings

[0049] D1, D2, W1, W2: Width Detailed Implementation

[0050] Please see Figure 1 , Figure 1 This is a partial top view of the server disclosed in the first embodiment of the present invention.

[0051] In this embodiment, server 1 includes a chassis 10 and a liquid cooling radiator module 20. In addition, server 1 may also include a motherboard 30, a heat source 40, a water cooling block 50 and a pump 60.

[0052] The motherboard 30, heat source 40, water block 50, and liquid cooling radiator module 20 are all located within the housing 10. The heat source 40, for example, is a central processing unit or graphics processor, and is mounted on the motherboard 30. The water block 50 is stacked on top of the heat source 40 to absorb the heat generated by the heat source 40. The outlet connector 51 of the water block 50 is connected to the liquid cooling radiator module 20, for example, via fitting P1. The liquid cooling radiator module 20 is connected to the pump 60, for example, via fitting P2. The pump 60 is connected to the inlet connector 52 of the water block 50, for example, via fitting P3. Thus, the pump 60, water block 50, and liquid cooling radiator module 20 constitute a cooling cycle. The pump 60 can drive coolant into the water block 50 to exchange heat with the water block 50, thereby carrying away the heat absorbed by the water block 50 from the heat source 40. Next, the coolant flows to the liquid cooling radiator module 20, where the heat absorbed by the coolant is dissipated, for example, through natural convection or forced convection, thus cooling the coolant. Then, the cooled coolant returns to the water block 50 under the drive of the pump 60. In this way, the coolant repeats the above cooling cycle, allowing the heat source 40 to operate at an appropriate temperature.

[0053] Next, the liquid cooling radiator module 20 will be described in detail below. Please refer to... Figures 2 to 4 . Figure 2 for Figure 1 A 3D schematic diagram of the liquid cooling radiator module. Figure 3 for Figure 2 An exploded view of the liquid cooling radiator module. Figure 4 for Figure 2 A cross-sectional schematic diagram of the liquid-cooled radiator unit.

[0054] The liquid cooling radiator module 20 comprises multiple liquid cooling radiator units 21. These liquid cooling radiator units 21 have the same structure, so only one will be described in detail below. Each liquid cooling radiator unit 21 comprises a body 211 and two expansion joints 212 and 213. The body 211 comprises a flow channel portion 2111 and two fin portions 2112. The two fin portions 2112 are disposed in the flow channel portion 2111, and the two expansion joints 212 and 213 are respectively disposed on opposite sides of the flow channel portion 2111. Specifically, the flow channel portion 2111 comprises two housing portions 2113 and three connecting portions 2114. The three connecting portions 2114 are located between and connect the two housing portions 2113. Both housing portions 2113 and the three connecting portions 2114 are hollow structures, allowing coolant to flow from one housing portion 2113 through the three connecting portions 2114 to the other housing portion 2113. Two fin portions 2112 are disposed between three connecting portions 2114.

[0055] It should be noted that the number of connecting portions 2114 is not limited to three, and the number of fin portions 2112 is not limited to two. In other embodiments, the number of connecting portions may be other numbers, such as two or one, and the number of fin portions may be other numbers, such as one. Furthermore, the number of housing portions 2113 of the flow channel portion 2111 is not limited to two. In other embodiments, the number of housing portions of the flow channel portion may be only one.

[0056] Each of the two housing portions 2113 has a first surface 21131, a second surface 21132, and a third surface 21133. Taking one housing portion 2113 as an example, the first surface 21131 and the second surface 21132 face opposite directions, while the third surface 21133 connects to the first surface 21131 and the second surface 21132. Taking both housing portions 2113 as an example, the first surfaces 21131 of both housing portions 2113 face the same direction, the second surfaces 21132 of both housing portions 2113 face the same direction, while the third surfaces 21133 of both housing portions 2113 face opposite directions. Two expansion joints 212 and 213 are respectively disposed on the first surface 21131 of one housing portion 2113 and the second surface 21132 of the other housing portion 2113, and the two expansion joints 212 and 213 are respectively connected to the two housing portions 2113. The expansion connector 212 has a first mating portion 2121, while the expansion connector 213 has a second mating portion 2131. The first mating portion 2121 and the second mating portion 2131 have, for example, a concave-convex matching structure, such as the first mating portion 2121 being a socket and the second mating portion 2131 being an insertion protrusion.

[0057] Please see Figures 3 to 6 . Figure 5 for Figure 2 A top view of the liquid cooling radiator module. Figure 6 for Figure 2 A side view of the liquid cooling radiator module.

[0058] In this embodiment, these liquid cooling radiator units 21 are connected together via expansion joints 212 and 213. Specifically, the assembly of any two connected liquid cooling radiator units 21 is performed by inserting the second mating portion 2131 of the expansion joint 213 of one liquid cooling radiator unit 21 into the first mating portion 2121 of the expansion joint 212 of the other liquid cooling radiator unit 21. After these liquid cooling radiator units 21 are connected, they are arranged in parallel, with a portion of the housing portion 2113 located on one side of the liquid cooling radiator module 20 (e.g., the left side), and another portion of the housing portion 2113 located on the other side of the liquid cooling radiator module 20 (e.g., the right side). Furthermore, the internal flow channels formed by these connected liquid cooling radiator units 21 are S-shaped.

[0059] In this embodiment, each of the two housing portions 2113 of each liquid cooling radiator unit 21 has a wiring groove 21134 located on the third surface 21133. These wiring grooves 21134 on one side and the other side of the housing portion 2113 of the liquid cooling radiator module 20 are used to accommodate tubing (such as... Figure 1 The pipe fitting shown (P2) is arranged to facilitate the placement of the pipe fitting.

[0060] It should be noted that the wiring grooves 21134 of the two housing parts 2113 of each liquid cooling unit 21 are optional structures and can be omitted in other embodiments.

[0061] In this embodiment, the liquid cooling radiator module 20 may further include a plurality of first retaining members 22 and two second retaining members 23. The two second retaining members 23 are fixed to the third surface 21133 of the two housing portions 2113 of each liquid cooling radiator unit 21 by these first retaining members 22.

[0062] In detail, each liquid radiator unit 21 has a first retaining member 22 on the third surface 21133 of the two housing portions 2113. One second retaining member 23 is secured to a portion of the first retaining members 22 on one side of the housing portions 2113 of the liquid radiator module 20, and the other second retaining member 23 is secured to other first retaining members 22 on the other side of the housing portions 2113 of the liquid radiator module 20.

[0063] The method of securing the first retaining member 22 with the second retaining member 23 is further described in detail. Each of the two second retaining members 23 has multiple retaining holes 231, which are engaged with the first retaining members 22. Taking one retaining hole 231 and one first retaining member 22 as an example, the retaining hole 231 has a connected release portion 2311 and a retaining portion 2312. The first retaining member 22 includes a connected head 221 and a neck 222. The width D1 of the head 221 is greater than the width D2 of the neck 222. The width D1 of the head 221 is less than the width W1 of the release portion 2311 but greater than the width W2 of the retaining portion 2312. The necks 222 of the first retaining members 22 are respectively located at the retaining portions 2312 of the retaining holes 231 of the two second retaining members 23. One of the second retainers 23 is located between the head 221 of a portion of the first retainer 22 and the third surface 21133 of the housing portions 2113 on one side of the liquid cooling radiator module 20, and another second retainer 23 is located between the head 221 of the other first retainer 22 and the third surface 21133 of the housing portions 2113 on the other side of the liquid cooling radiator module 20.

[0064] In this embodiment, each liquid cooling radiator unit 21 has two expansion joints 212 and 213 on its flow channel portion 2111. These liquid cooling radiator units 21 are assembled into a modular design by connecting their flow channel portions 2111 via these expansion joints 212 and 213. This modular design allows users to select the desired number of liquid cooling radiator units 21 to be assembled based on their heat dissipation requirements. Therefore, it eliminates the need to spend a significant amount of time developing corresponding heat dissipation modules to meet different heat dissipation needs, thus improving production efficiency and reducing production costs.

[0065] Furthermore, through the design of the flow channel portion 2111 of the body 211 of these liquid cooling radiator units 21 being connected in a concave-convex matching manner through these expansion joints 212, 213, liquid cooling radiator modules 20 that meet the heat dissipation requirements can be quickly assembled according to the heat dissipation requirements.

[0066] It should be noted that the two expansion connectors 212 and 213 of each liquid radiator unit 21 are not limited to having a first mating portion 2121 and a second mating portion 2131, respectively. In other embodiments, the two expansion connectors of each liquid radiator unit can be any suitable quick-release connector.

[0067] Furthermore, the modular design, formed by connecting the flow channels 2111 of the liquid radiator units 21 through the expansion joints 212 and 213, enhances the heat dissipation capacity of the liquid radiator module 20. For example, computer simulations show the temperatures of the coolant passing through a single-piece liquid radiator module of the same size and a liquid radiator module with different numbers of connected liquid radiator units, as shown in the table below.

[0068]

[0069] As shown in the table above, modular liquid cooling radiator modules increase the flow path of the coolant, thus improving heat dissipation capacity compared to integrated liquid cooling radiator modules. Furthermore, during the simulation, the flow velocity distribution of the coolant through these connected liquid cooling radiator units remained stable, without variation due to flow distance, and the flow rate of the coolant through these connected liquid cooling radiator units was also stable.

[0070] In this embodiment, the individual liquid cooling radiator units 21 in the liquid cooling radiator module 20 are all the same size, but this is not a limitation. In other embodiments, the liquid cooling radiator module can be assembled using liquid cooling radiator units of different sizes according to the heat dissipation requirements and the size of the space where it is placed, so as to achieve the required heat dissipation capacity while making effective use of space.

[0071] In this embodiment, the liquid cooling radiator units 21 in the liquid cooling radiator module 20 are fixed to each other by the first retaining members 22 being secured to the retaining holes 231 of the second retaining members 23, so as to prevent the liquid cooling radiator units 21 from accidentally coming off.

[0072] It should be noted that the structure of the first retaining member 22 and the structure of the locking hole 231 of the second retaining member 23 are not intended to limit the present invention. In other embodiments, the first retaining member may be a protrusion of uniform width, and the locking hole of the second retaining member may be a hole corresponding to the shape of the protrusion, with the protrusion and the hole being locked together in a tight fit.

[0073] Furthermore, the number of second retaining members 23 is not limited to two. In other embodiments, there may be only one second retaining member. In this way, the first retaining members located on the housing portions on one side of the liquid cooling radiator module may be omitted. Alternatively, the first retaining members may be disposed on the connecting portions on the same side (such as the upper side) of the liquid cooling radiator module, and the second retaining member is secured to these first retaining members.

[0074] Furthermore, the second retainer 23 is not limited to being fixed to these liquid radiator units 21 by means of locking the first retainer 22. In other embodiments, the second retainer can be fixed to these liquid radiator units by means of the first retainer that is locked to these liquid radiator units.

[0075] On the other hand, the first retainer 22 and the second retainer 23 are optional elements and may be omitted in other embodiments.

[0076] Next, please refer to Figure 7 , Figure 7 This is a top view schematic diagram of the liquid cooling radiator module disclosed in the second embodiment of the present invention.

[0077] The liquid cooling radiator module 20a in this embodiment is similar to the liquid cooling radiator module 20 in the previous embodiment. The main difference between the two is the position of the two expansion joints of each liquid cooling radiator unit. Therefore, the following mainly describes the difference, while the same parts will not be described again.

[0078] In this embodiment, the liquid cooling radiator module 20a includes, for example, two liquid cooling radiator units 21a. Two expansion connectors 212a and 213a of each liquid cooling radiator unit 21a are disposed on the same housing portion 2113a and located on opposite first surfaces 21131a and second surfaces 21132a of this housing portion 2113a. Thus, the expansion connectors 212a and 213a of the two liquid cooling radiator units 21a are on the same side of the liquid cooling radiator module 20a, and the expansion connector 212a of one liquid cooling radiator unit 21a is connected to the expansion connector 213a of the other liquid cooling radiator unit 21a.

[0079] In this embodiment, the internal flow channel design of each liquid cooling radiator unit 21a allows the coolant to flow in a U-shape. That is, the coolant entering the housing section 2113a via the expansion joint 213a will first flow through the connecting part 2114a and another housing section 2113a before flowing out of the housing section 2113a via the expansion joint 212a.

[0080] Next, please refer to Figure 8 and Figure 9 , Figure 8 This is a three-dimensional schematic diagram of the liquid cooling radiator module disclosed in the third embodiment of the present invention. Figure 9 for Figure 8 A top view of the liquid cooling radiator module.

[0081] The liquid cooling radiator module 20b in this embodiment is similar to the liquid cooling radiator module 20 in the previous embodiment. The main difference between the two lies in the number of second retaining members and their positions. Therefore, the following mainly describes the difference, while the same parts will not be repeated.

[0082] In this embodiment, the first retaining members 22b of the liquid cooling radiator module 20b are disposed not only on the third surfaces 21133b of the two housing portions 2113b of each liquid cooling radiator unit 21b, but also on the connecting portions 2114b. Furthermore, the liquid cooling radiator module 20b includes four second retaining members 23b. Two of the second retaining members 23b are fixed to the third surfaces 21133b of the two housing portions 2113b of each liquid cooling radiator unit 21b via portions of the first retaining members 22b. The other two second retaining members 23b are fixed to the surfaces of the connecting portions 2114b of these liquid cooling radiator units 21b facing the same direction via other first retaining members 22b.

[0083] According to the liquid cooling radiator unit, liquid cooling radiator module, and server disclosed in the above embodiments, each liquid cooling radiator unit has two expansion joints on its flow channel section, and these liquid cooling radiator units are connected together via these expansion joints to form a modular design. This allows users to select the number of liquid cooling radiator units to be assembled according to their heat dissipation requirements. Therefore, it is not necessary to spend a lot of time developing corresponding heat dissipation modules to meet different heat dissipation needs, thus improving production efficiency and reducing production costs.

[0084] Furthermore, the design of connecting the flow channels of these liquid radiator units in a concave-convex matching manner through these expansion joints allows for the rapid assembly of liquid radiator modules that meet heat dissipation requirements.

[0085] Furthermore, the modular design, formed by connecting the flow channels of these liquid radiator units through these expansion joints, can improve the heat dissipation capacity of the liquid radiator module.

[0086] In addition, liquid cooling radiator modules can be assembled by selecting individual liquid cooling radiators of different sizes according to heat dissipation requirements and the size of the space where they are placed, so as to achieve the required heat dissipation capacity while making effective use of space.

[0087] Although the present invention has been disclosed above with reference to the preferred embodiments described above, it is not intended to limit the present invention. Those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the claims appended to this specification.

Claims

1. A liquid cooling radiator module, comprising: Multiple liquid cooling radiator units, each containing: One entity, comprising a first-class department; and Two expansion joints, each connected to the flow channel section; in, The multiple flow channels of the multiple bodies of the multiple liquid-cooled radiator units are connected by the multiple expansion joints.

2. The liquid cooling radiator module as claimed in claim 1, wherein in each of the liquid cooling radiator units, one of the two expansion joints has a first mating portion, and the other of the two expansion joints has a second mating portion, wherein the first mating portion and the second mating portion are matching concave-convex structures.

3. The liquid cooling radiator module as claimed in claim 1, wherein in each liquid cooling radiator unit, the two expansion joints are individually disposed at both ends of the flow channel.

4. The liquid cooling radiator module as claimed in claim 1, wherein in each liquid cooling radiator unit, the body further includes a fin portion, the flow channel portion includes two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, the fin portion is disposed on the connecting portion, and the two expansion joints are respectively disposed on the surfaces of the two housing portions facing opposite directions.

5. The liquid cooling radiator module as claimed in claim 1, wherein in each liquid cooling radiator unit, the body further includes a fin portion, the flow channel portion includes two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, the fin portion is disposed on the connecting portion, and the two expansion joints are respectively disposed on the surfaces of one of the housing portions facing opposite directions.

6. The liquid cooling radiator module as claimed in claim 1, wherein in each of the liquid cooling radiator units, the flow channel portion has two opposing wiring grooves.

7. The liquid cooling radiator module as claimed in claim 1 further includes a plurality of first retaining members and at least one second retaining member, the at least one second retaining member being fixed to a plurality of flow channels of a plurality of bodies of a plurality of liquid cooling radiator units via the plurality of first retaining members.

8. The liquid cooling radiator module as claimed in claim 7, wherein the at least one second retaining member has a plurality of retaining holes, each of the plurality of retaining holes having a connected release portion and a retaining portion, each of the plurality of first retaining members includes a connected head and a neck, the width of the head being greater than the width of the neck, the width of the head being less than the width of the release portion and greater than the width of the retaining portion; the plurality of necks of the plurality of first retaining members are respectively located at the plurality of retaining portions of the plurality of retaining holes of the at least one second retaining member, and the at least one second retaining member is located between the plurality of heads of the plurality of first retaining members and the plurality of flow channels of the plurality of bodies of the plurality of liquid cooling radiator units.

9. The liquid cooling radiator module as claimed in claim 7, wherein in each liquid cooling radiator unit, the body further includes a fin portion, the flow channel portion includes two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, and the fin portion is disposed on the connecting portion; the number of the at least one second retaining member is two, and the two second retaining members are fixed to the surfaces of the two housing portions of each liquid cooling radiator unit facing opposite directions by a plurality of first retaining members.

10. The liquid cooling radiator module as claimed in claim 7, wherein in each of the liquid cooling radiator units, the body further includes a fin portion, the flow channel portion includes two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, and the fin portion is disposed on the connecting portion; the at least one second retaining member is fixed to the surfaces of the multiple connecting portions of the multiple liquid cooling radiator units facing the same direction by a plurality of first retaining members.

11. A server comprising: A casing; and A liquid cooling radiator module, located within the housing, includes: Multiple liquid cooling radiator units, each containing: One entity, comprising a first-class department; and Two expansion joints, each connected to the flow channel section; in, The multiple flow channels of the multiple bodies of the multiple liquid-cooled radiator units are connected by the multiple expansion joints.

12. The server as claimed in claim 11, wherein in each of the liquid cooling radiator units, the two expansion joints are individually disposed at both ends of the flow channel.

13. The server of claim 11, wherein in each of the liquid cooling radiator units, the body further includes a fin portion, the flow channel portion includes two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, the fin portion is disposed on the connecting portion, and the two expansion joints are respectively disposed on the surfaces of the two housing portions facing opposite directions.

14. The server of claim 11, wherein in each of the liquid cooling radiator units, the body further includes a fin portion, the flow channel portion includes two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, the fin portion is disposed on the connecting portion, and the two expansion joints are respectively disposed on the surfaces of one of the housing portions facing opposite directions.

15. A liquid cooling radiator unit for connection with another liquid cooling radiator unit, comprising: One entity, comprising a first-class department; and Two expansion connectors are individually connected to the flow channel, one of which is used to connect to the other liquid radiator unit.

16. The liquid-cooled radiator unit as claimed in claim 15, wherein the two expansion joints are individually disposed at both ends of the flow channel.

17. The liquid-cooled radiator unit as claimed in claim 15, wherein the body further comprises a fin portion, the flow channel portion comprises two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, the fin portion is disposed on the connecting portion, and the two expansion joints are respectively disposed on the surfaces of the two housing portions facing opposite directions.

18. The liquid-cooled radiator unit as claimed in claim 15, wherein the body further comprises a fin portion, the flow channel portion comprises two housing portions and a connecting portion, the connecting portion is located between and connected to the two housing portions, the fin portion is disposed on the connecting portion, and the two expansion joints are respectively disposed on the surfaces of one of the housing portions facing opposite directions.

19. The liquid cooling radiator unit as claimed in claim 15, wherein one of the two expansion joints has a first mating portion, the other of the two expansion joints has a second mating portion, and the first mating portion and the second mating portion are matching concave-convex structures.

20. The liquid-cooled radiator unit as claimed in claim 15, wherein the flow channel portion has two opposing wiring grooves.

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