A liquid-cooled back door and a connecting device of CDU

Abstract

This utility model discloses a connection device between a liquid-cooled back door and a CDU. The cooling pipe mechanism on the liquid-cooled back door includes a cooling pipe assembly, an inlet pipe, and a return pipe. One side of the liquid-cooled back door has an inlet connector connected to the inlet pipe, and the other side has a return connector connected to the return pipe. A supply pipe and a return pipe are provided on the cabinet. A supply mounting head and a return mounting head are provided on the side of the cabinet where the liquid-cooled back door is installed. The supply mounting head is connected to the supply pipe, and the return mounting head is connected to the return pipe. During installation, the liquid-cooled back door is connected to the CDU by inserting the inlet connectors into the supply mounting heads and the return connectors into the return connectors. When disassembly is required, the liquid-cooled back door can be easily removed from the inlet and return connectors. The operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling technology, and in particular to a connection device for liquid-cooled back door and CDU. Background Technology

[0002] Liquid cooling systems are widely used in data center server rack cooling, primarily to create a suitable operating environment for IT equipment within the data center. In recent years, with the continuous increase in data center rack power density, many data centers have chosen to install backplane liquid cooling systems on the back of the racks to dissipate heat.

[0003] When using the liquid-cooled backplate or liquid-cooled back door of a server rack for heat dissipation, the hot air generated during server operation is exhausted by the server fan and enters the liquid-cooled back door. The heat exchange structure inside the liquid-cooled back door facilitates heat exchange between the hot air and the coolant. The coolant, having absorbed heat, is then pumped to an external cooling system for further cooling. After being cooled by the external system, the coolant returns to the liquid-cooled back door, completing the entire cycle. However, currently available liquid-cooled back doors are all fixedly mounted on the server rack, which makes the connection between the liquid-cooled back door and the CDU (Server Display Unit) during installation and removal quite difficult. Utility Model Content

[0004] The purpose of this invention is to provide a connection device between a liquid-cooled back door and a CDU, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A connection device between a liquid-cooled back door and a CDU includes a liquid-cooled back door with a cooling pipe mechanism. The cooling pipe mechanism includes a cooling pipe assembly, an inlet pipe, and a return pipe. The cooling pipe assembly has an inlet structure and an outlet structure. The inlet structure is connected to the inlet pipe, and the outlet structure is connected to the return pipe. One side of the liquid-cooled back door has an inlet connector connected to the inlet pipe, and the other side has a return connector connected to the return pipe. A supply pipe and a return pipe are provided on the cabinet. A supply mounting head and a return mounting head are provided on the side of the cabinet where the liquid-cooled back door is installed. The supply mounting head is connected to the supply pipe, and the return mounting head is connected to the return pipe. The inlet connector can be inserted into the supply mounting head to connect with the supply pipe, and the return connector can be inserted into the return mounting head to connect with the return pipe.

[0007] The aforementioned connection device between the liquid-cooled back door and the CDU has three liquid inlet connectors and three liquid return connectors, which are arranged sequentially at intervals along the length of both sides of the liquid-cooled back door.

[0008] The above-mentioned connection device between the liquid-cooled back door and the CDU includes a cylindrical connector for both the liquid inlet connector and the liquid return connector. The cylindrical connector has a cylindrical connecting cavity inside. The cylindrical connecting cavity includes a first section and a second section that are connected. The radial dimension of the second section is smaller than that of the first section.

[0009] The aforementioned connection device between the liquid-cooled back door and the CDU includes an inner connector inside the cylindrical connection cavity. The inner connector includes an integrally formed inner connecting tube and an inner insertion column. The inner connecting tube and the inner insertion column form a connected liquid connection channel. The inner connecting tube is installed in the first section, and the inner insertion column is installed in the second section. The inner insertion column extends out of the cylindrical connector to form an extended connection section.

[0010] In the above-mentioned connection device between the liquid-cooled back door and the CDU, the outer side wall of the cylindrical connector is provided with an annular connecting groove along the circumference, and the opposite side walls of the annular connecting groove are all inclined side walls.

[0011] The above-mentioned connection device between the liquid-cooled back door and the CDU includes a cylindrical mounting member for both the liquid supply mounting head and the liquid return mounting head. The cylindrical mounting member has a mounting cavity and a liquid communication cavity that are connected in sequence. The radial dimension of the mounting cavity is larger than the radial dimension of the liquid communication cavity. The cylindrical connector can be inserted into the mounting cavity.

[0012] The aforementioned connection device between the liquid-cooled back door and the CDU has multiple radial through holes on the inner wall of the mounting cavity. These radial through holes are arranged sequentially at intervals along the circumference of the mounting cavity. Each radial through hole contains a corresponding elastic limiting ball, which includes a limiting ball and an elastic element disposed on the limiting ball.

[0013] The aforementioned connection device between the liquid-cooled back door and the CDU includes an inner mounting tube and an inner mounting column within the liquid communication cavity. The inner mounting tube and the inner mounting column form a connected liquid mounting channel, and the extended connecting section can be inserted into and connected to the liquid mounting channel.

[0014] In the above technical solution, the connection device between the liquid-cooled back door and the CDU provided by this utility model includes a cooling pipe mechanism on the liquid-cooled back door. The cooling pipe mechanism includes a cooling pipe assembly, an inlet pipe, and a return pipe. The cooling pipe assembly includes an inlet structure and an outlet structure. An inlet connector connected to the inlet pipe is provided on one side of the liquid-cooled back door, and a return connector connected to the return pipe is provided on the other side of the liquid-cooled back door. A liquid supply pipe and a return pipe are provided on the cabinet. A liquid supply mounting head and a return mounting head are provided on the side of the cabinet where the liquid-cooled back door is installed. During the installation of the liquid-cooled back door, the inlet connectors are inserted one by one into the liquid supply mounting heads, and the return connectors are inserted one by one into the return connectors. This connects the liquid supply line, liquid supply mounting head, liquid supply connector, inlet pipe, cooling pipe assembly, return pipe, return connector, return mounting head, and return line in sequence. When the liquid-cooled back door needs to be disassembled, it can be directly pulled out from the inlet and return connectors. This operation is simple and facilitates the installation and disassembly of the liquid-cooled back door by technicians. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is an installation diagram of the cabinet provided for an embodiment of the present utility model;

[0017] Figure 2 A schematic diagram of the structure of the liquid-cooled back door provided in an embodiment of this utility model;

[0018] Figure 3 An installation diagram of the liquid inlet connector and the liquid supply mounting head provided in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the liquid inlet connector and the liquid supply mounting head provided in the embodiments of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation of the elastic limiting ball provided in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Cabinet; 11. Liquid supply mounting head; 12. Liquid return mounting head; 13. Columnar mounting component; 131. Mounting cavity; 132. Liquid communication cavity; 133. Radial through hole; 134. Elastic limiting ball; 135. Limiting ball; 136. Elastic element; 137. Inner mounting tube; 138. Inner mounting column; 2. Liquid cooling back door; 21. Cooling pipe assembly; 211. Liquid inlet structure; 212. Liquid outlet structure; 22. Liquid inlet pipe; 23. Liquid return pipe; 24. Liquid inlet connector; 25. Liquid return connector; 26. Columnar joint; 261. Columnar connecting cavity; 262. Inner connecting tube; 263. Inner insertion column; 264. Extended connecting section; 27. Annular connecting groove; 28. Inclined side wall; 29. ​​Cooling fan. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-5 As shown, this utility model provides a connection device between a liquid-cooled back door and a CDU, including a liquid-cooled back door 2. A cooling pipe mechanism is provided on the liquid-cooled back door 2. The cooling pipe mechanism includes a cooling pipe assembly 21, an inlet pipe 22, and a return pipe 23. The cooling pipe assembly 21 includes an inlet structure 211 and an outlet structure 212. The inlet structure 211 is connected to the inlet pipe 22, and the outlet structure 212 is connected to the return pipe 23. An inlet connector 24 connected to the inlet pipe 22 is provided on one side of the liquid-cooled back door 2. On the other side of the back door 2, there is a return liquid connector 25 that is connected to the return liquid pipe 23. The cabinet 1 is provided with a liquid supply pipe and a return liquid pipe. On the side of the cabinet 1 where the liquid-cooled back door 2 is installed, there is a liquid supply mounting head 11 and a return liquid mounting head 12. The liquid supply mounting head 11 is connected to the liquid supply pipe, and the return liquid mounting head 12 is connected to the return liquid pipe. The liquid inlet connector 24 can be inserted into the liquid supply mounting head 11 to connect with the liquid supply pipe, and the return liquid connector 25 can be inserted into the return liquid mounting head 12 to connect with the return liquid pipe.

[0025] Specifically, the cabinet 1 is equipped with a liquid supply line and a liquid return line, which are connected to the CDU. The liquid supply line has a liquid supply head 11 on the mounting side of the cabinet 1, and the liquid return line has a liquid return head 12 on the mounting side of the cabinet 1. Both the liquid supply head 11 and the liquid return head 12 are equipped with control valves. The control valves can control the liquid supply head 11 and the liquid return head 12, so that the liquid supply head 11 and the liquid return head 12 can be opened or closed.

[0026] In this embodiment, the liquid-cooled back door 2 is fixedly installed on one side of the cabinet 1 during use. The liquid supply head 11 and the liquid return head 12 are both set on the side of the cabinet 1 corresponding to the liquid-cooled back door 2. The liquid-cooled back door 2 is provided with a cooling pipe mechanism, which includes a cooling pipe assembly 21, a liquid inlet pipe 22 and a liquid return pipe 23. The cooling pipe assembly 21 is arranged sequentially along the liquid-cooled back door 2, so that the liquid-cooled back door 2 forms a large area of ​​cooling zone. The cooling pipe assembly 21 can be a serpentine pipe or a cooling pipe of other structure. The air can be cooled through the cooling zone. The liquid inlet pipe 22 and the liquid return pipe 23 are both connected to the cooling pipe assembly 21. One side of the liquid-cooled back door 2 is provided with a liquid inlet connector 24 connected to the liquid inlet pipe 22. The liquid inlet connector 24 can be one, two, three or more. The other side of the liquid-cooled back door 2 is provided with a liquid return connector 25 connected to the liquid return pipe 23. The liquid return connector 25 can also be one, two, three or more.

[0027] In this embodiment, a liquid supply mounting head 11 and a liquid return mounting head 12 are provided on the side of the cabinet 1 where the liquid-cooled back door 2 is installed. The liquid supply mounting head 11 is paired with an inlet connector 24, and the liquid supply mounting head 11 is connected to the liquid supply pipeline. The liquid return mounting head 12 is connected to the liquid return pipeline, and the liquid return mounting head 12 is paired with a liquid return connector 25. During the installation or replacement of the liquid-cooled back door 2, the inlet connector 24 is paired with the liquid supply mounting head 11, and the liquid return connector 25 is paired with the liquid return mounting head 12. The inlet connector 24 is inserted into the liquid supply mounting head 11, thereby connecting the inlet connector 24, the liquid supply mounting head 11, and the liquid supply pipeline sequentially, and connecting the liquid return connector 25 to the liquid return mounting head 12. The appropriate connector is inserted into the return liquid mounting head 12, thereby connecting the return liquid connector 25, the return liquid mounting head 12, and the return liquid pipeline. In this way, the supply liquid pipeline, the supply liquid mounting head 11, the supply liquid connector, the inlet pipe 22, the cooling pipe assembly 21, the return liquid pipe 23, the return liquid connector 25, the return liquid mounting head 12, and the return liquid pipeline are connected in sequence. Thus, the CDU can deliver liquid refrigerant to the cooling pipe assembly 21 through the supply liquid pipeline, the supply liquid mounting head 11, the supply liquid connector, and the inlet pipe 22. The liquid refrigerant is delivered along the cooling pipe assembly 21 in sequence, thereby enabling heat exchange with the hot air. The liquid refrigerant after heat exchange in the cooling pipe assembly 21 is delivered from the return liquid pipe 23, the return liquid connector 25, the return liquid mounting head 12, and the return liquid pipeline back to the CDU. During the installation of the liquid-cooled back door 2, after the inlet connector 24 is connected to the supply connector 11 and the return connector 25 is connected to the return connector 12, the liquid-cooled back door 2 is fixed to the cabinet using the corresponding fixing structure. Simultaneously, the supply connector 11 and return connector 12 can be controlled by a control valve. When the liquid-cooled back door 2 is disassembled, the supply connector 11 and return connector 12 can be closed; when the liquid-cooled back door 2 is installed, the supply connector 11 and return connector 12 can be opened. A cooling fan 29 can also be installed on the liquid-cooled back door 2 to assist in heat dissipation under special circumstances.

[0028] The present invention provides a connection device between a liquid-cooled back door 2 and a CDU. The liquid-cooled back door 2 is equipped with a cooling pipe mechanism, which includes a cooling pipe assembly 21, an inlet pipe 22, and a return pipe 23. The cooling pipe assembly 21 includes an inlet structure 211 and an outlet structure 212. One side of the liquid-cooled back door 2 is provided with an inlet connector 24 connected to the inlet pipe 22, and the other side of the liquid-cooled back door 2 is provided with a return connector 25 connected to the return pipe 23. A liquid supply pipe and a return pipe are provided on the cabinet 1. A liquid supply mounting head 11 and a return mounting head 12 are provided on the side of the cabinet 1 where the liquid-cooled back door 2 is installed. During the installation of the liquid-cooled back door 2, the inlet connector 24 is inserted into the liquid supply mounting head 11 one by one, and the return connector 25 is inserted into the return connector 25 one by one. This connects the liquid supply line, liquid supply mounting head 11, liquid supply connector, inlet pipe 22, cooling pipe assembly 21, return pipe 23, return connector 25, return mounting head 12, and return line in sequence. When the liquid-cooled back door 2 needs to be disassembled, it can be directly pulled out from the inlet connector 24 and the return connector 25. This operation is simple and convenient for technicians to install and disassemble the liquid-cooled back door 2.

[0029] In this embodiment, preferably, there are three liquid inlet connectors 24 and three liquid return connectors 25. The three liquid inlet connectors 24 and three liquid return connectors 25 are arranged sequentially at intervals along the length direction of the liquid cooling back door 2. Both the liquid inlet connectors 24 and three liquid return connectors 25 include a cylindrical connector 26. A cylindrical connecting cavity 261 is formed inside the cylindrical connector 26. The cylindrical connecting cavity 261 penetrates the cylindrical connector. The cylindrical connecting cavity 261 includes a first segment and a second segment that are connected. The radial dimension of the second segment is smaller than the radial dimension of the first segment.

[0030] In this embodiment, preferably, an inner connector is provided inside the cylindrical connecting cavity 261. The inner connector includes an integrally formed inner connecting tube 262 and an inner insertion column 263. The radial dimension of the inner connecting tube 262 is larger than the radial dimension of the inner insertion column 263. The inner connecting tube 262 and the inner insertion column 263 form a connected liquid connection channel. The inner connecting tube 262 is fixedly installed in the first section, and the inner insertion column 263 is installed in the second section. The inner insertion column 263 extends out from the cylindrical connector 26 to form an extended connecting section 264. After the liquid inlet connector 24 and the liquid return connector 25 are installed on the liquid cooling back door 2, the inner connecting tube 262 of the liquid inlet connector 24 is connected to the liquid inlet pipe 22, and the inner connecting tube 262 of the liquid return connector 25 is connected to the liquid return pipe 23.

[0031] In this embodiment, preferably, the outer side wall of the cylindrical connector 26 is provided with an annular connecting groove 27, and the opposite side walls of the annular connecting groove 27 are all formed with inclined side walls 28. The annular connecting groove 27 is arranged along the circumference of the cylindrical connector 26, so that the cylindrical connector 26 can be connected and restricted together with the liquid supply mounting head 11 and the liquid return mounting head 12.

[0032] In this embodiment, preferably, both the liquid supply mounting head 11 and the liquid return mounting head 12 include a cylindrical mounting member 13. The cylindrical mounting member 13 has a mounting cavity 131 and a liquid communication cavity 132 that are sequentially connected. The radial dimension of the mounting cavity 131 is larger than the radial dimension of the liquid communication cavity 132. The cylindrical connector 26 can be inserted into the mounting cavity 131. The inner wall of the mounting cavity 131 has multiple radial through holes 133, which are sequentially spaced along the circumference of the mounting cavity 131. Each radial through hole 133 has a corresponding elastic limiting ball 134. The elastic limiting ball 134 includes a limiting ball 135 and an elastic element 136 disposed on the limiting ball 135. The elastic element 136 can be a spring or an elastic telescopic column. When the elastic element 136 is in its initial state, the elastic ball is partially located within the radial through hole 134. On the outside of 33, the elastic ball is partially located in the radial through hole 133 and partially in the mounting cavity 131. During use, the cylindrical connector 26 can be gradually inserted into the mounting cavity 131. During this process, it will press against the limiting ball 135, causing the limiting ball 135 to be stored in the radial through hole 133. At this time, the elastic element 136 is in a pressing state. When the cylindrical connector 26 is inserted so that the annular connecting groove 27 corresponds to the limiting ball 135, the pressure of the cylindrical connector 26 on the limiting ball 135 disappears. Under the action of the elastic element 136, the elastic ball is embedded and restricted in the annular connecting groove 27, thereby fixing and restricting the cylindrical connector 26. Then, the liquid-cooled back door 2 is fixed. When it is necessary to disassemble the liquid-cooled back door 2, the cylindrical connector 26 can be directly pulled out from the mounting cavity 131.

[0033] In this embodiment, preferably, an inner mounting tube 137 and an inner mounting column 138 are provided inside the liquid communication cavity 132. The inner mounting tube 137 and the inner mounting column 138 form a connected liquid installation channel. The extended connecting section 264 can be inserted into the liquid installation channel. The inner mounting tube 137 of the liquid supply mounting head 11 is connected to the liquid supply pipeline, and the inner mounting tube 137 of the liquid return mounting head 12 is connected to the liquid return pipeline. During the installation of the liquid-cooled back door 2, when the cylindrical connector 26 is inserted into the mounting cavity 131, so that the annular connecting groove 27 and the limiting ball 135 are correspondingly restricted together, the extended connecting section 264 is just inserted into the liquid installation channel. At this time, the extended connecting section 264 is connected to the inner mounting column 138, thereby making the liquid connection channel and the liquid installation channel connected.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A connection device between a liquid-cooled back door and a CDU, comprising a liquid-cooled back door, characterized in that, The liquid-cooled back door is equipped with a cooling pipe mechanism, which includes a cooling pipe assembly, an inlet pipe, and a return pipe. The cooling pipe assembly has an inlet structure and an outlet structure. The inlet structure is connected to the inlet pipe, and the outlet structure is connected to the return pipe. One side of the liquid-cooled back door is equipped with an inlet connector connected to the inlet pipe, and the other side of the liquid-cooled back door is equipped with a return connector connected to the return pipe. The cabinet is equipped with a supply pipe and a return pipe. On the side of the cabinet where the liquid-cooled back door is installed, a supply mounting head and a return mounting head are provided. The supply mounting head is connected to the supply pipe, and the return mounting head is connected to the return pipe. The inlet connector can be inserted into the supply mounting head to connect with the supply pipe, and the return connector can be inserted into the return mounting head to connect with the return pipe.

2. The connection device between the liquid-cooled back door and the CDU according to claim 1, characterized in that, There are three liquid inlet connectors and three liquid return connectors, which are arranged at intervals along the length of both sides of the liquid-cooled back door.

3. The connection device between the liquid-cooled back door and the CDU according to claim 1, characterized in that, Both the inlet connector and the return connector include a cylindrical joint, and a cylindrical connecting cavity is formed inside the cylindrical joint. The cylindrical connecting cavity includes a first section and a second section that are connected, and the radial dimension of the second section is smaller than the radial dimension of the first section.

4. The connection device between the liquid-cooled back door and the CDU according to claim 3, characterized in that, The cylindrical connecting cavity is provided with an inner connector, which includes an integrally formed inner connecting tube and an inner insertion column. The inner connecting tube and the inner insertion column form a connected liquid connection channel. The inner connecting tube is installed in the first section, and the inner insertion column is installed in the second section. The inner insertion column extends out of the cylindrical connector to form an extended connecting section.

5. The connection device between the liquid-cooled back door and the CDU according to claim 4, characterized in that, The outer wall of the cylindrical joint is provided with an annular connecting groove along the circumference, and the opposite sidewalls of the annular connecting groove are all inclined sidewalls.

6. The connection device between the liquid-cooled back door and the CDU according to claim 5, characterized in that, Both the liquid supply mounting head and the liquid return mounting head include a cylindrical mounting component. The cylindrical mounting component has a mounting cavity and a liquid communication cavity that are connected in sequence. The radial dimension of the mounting cavity is larger than the radial dimension of the liquid communication cavity. The cylindrical connector can be inserted into the mounting cavity.

7. The connection device between the liquid-cooled back door and the CDU according to claim 6, characterized in that, The inner wall of the mounting cavity is provided with a plurality of radial through holes, which are arranged sequentially at intervals along the circumference of the mounting cavity. Each radial through hole is provided with an elastic limiting ball, which includes a limiting ball and an elastic element disposed on the limiting ball.

8. The connection device between the liquid-cooled back door and the CDU according to claim 7, characterized in that, The liquid communication cavity is provided with an inner mounting tube and an inner mounting column, and the inner mounting tube and the inner mounting column form a connected liquid installation channel. The protruding connecting section can be inserted and connected into the liquid installation channel.

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