An improved liquid-cooled back door and water chiller integrated heat dissipation system

Abstract

This utility model discloses an improved heat dissipation system integrating a liquid-cooled back door and a chiller. The system comprises an installation chamber and a heat dissipation chamber within the cabinet. The chiller is housed in the heat dissipation chamber, and the liquid-cooled back door is located on one side of the installation chamber. The chiller has supply and return pipes. The supply pipes have supply connectors within the installation chamber, and the return pipes have return connectors within the installation chamber. The liquid-cooled back door is equipped with a cooling pipe assembly. At the top of the liquid-cooled back door are inlet and return structures connected to the cooling pipe assembly. The inlet structure communicates with the supply connector, and the return structure communicates with the return connector. This improved heat dissipation system integrates a chiller and a liquid-cooled back door, placing the chiller and back door within the same cabinet. The chiller, supply pipes, cooling pipe assembly on the liquid-cooled back door, and return pipes form a unified heat dissipation system within the cabinet, enhancing the cabinet's heat dissipation performance.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling technology, and in particular to an improved heat dissipation system that integrates a liquid cooling back door with a chiller. Background Technology

[0002] Liquid cooling systems are mainly used to cool rack servers in data centers, providing a suitable operating environment for IT equipment within the data center. As the power density of data center racks continues to increase, many data centers adopt the method of installing backplane liquid cooling systems on the back of the racks to dissipate the heat generated by the racks.

[0003] When cooling the server rack via its liquid-cooled backplate or liquid-cooled back door, the hot air generated by the server's operation is expelled by the server fan and enters the liquid-cooled back door. The heat exchange structure inside the back door allows the hot air to exchange heat with the coolant. The cooled coolant is then pumped to an external cooling unit for further cooling. The cooled coolant then returns to the back door to complete the cycle. Currently, the external cooling unit and liquid-cooled back door are independent, meaning the server rack and external cooling unit are placed in different locations. This method is simple in structure but occupies a large area, and the liquid-cooled back door needs to be connected to the external cooling unit via connecting pipes, which increases heat loss. Utility Model Content

[0004] The purpose of this invention is to provide an improved heat dissipation system that integrates a liquid-cooled back door with a chiller, in order to overcome the aforementioned shortcomings in the prior art.

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

[0006] An improved heat dissipation system integrating a liquid-cooled back door and a chiller includes a chiller and a liquid-cooled back door. An installation chamber and a heat dissipation chamber are provided within the cabinet, with the heat dissipation chamber located directly above the installation chamber. The chiller is housed within the heat dissipation chamber, and the liquid-cooled back door is located on one side of the installation chamber. The chiller is equipped with a liquid supply pipe and a liquid return pipe. The liquid supply pipe has a supply connector within the installation chamber, and the liquid return pipe has a return connector within the installation chamber. The liquid-cooled back door is equipped with a cooling pipe assembly. A liquid inlet structure and a liquid return structure, connected to the cooling pipe assembly, are located at the top of the liquid-cooled back door. The liquid inlet structure is connected to the liquid supply connector, and the liquid return structure is connected to the liquid return connector.

[0007] The aforementioned liquid-cooled back door and chiller integrated heat dissipation system includes a cooling pipe assembly comprising a frame and multiple cooling pipe components disposed on the frame, wherein the multiple cooling pipe components are arranged sequentially at intervals along the width direction of the frame.

[0008] The aforementioned liquid-cooled back door and chiller integrated heat dissipation system includes a frame comprising a left plate and a right plate arranged opposite each other. The tops of the left plate and the right plate are connected by a top connecting plate, and the bottoms of the left plate and the right plate are connected by a bottom connecting plate.

[0009] The aforementioned heat dissipation system, which integrates the liquid-cooled back door and the chiller, also has a horizontal fixing plate placed horizontally on the frame. There is at least one horizontal fixing plate, and the horizontal fixing plate is arranged parallel to the top connecting part.

[0010] The aforementioned liquid-cooled back door and chiller integrated heat dissipation system has a certain gap between the bottom of the cooling pipe component and the bottom connecting plate to form a drainage cavity for condensate to drain out, and the bottom connecting plate is provided with a drainage structure.

[0011] The aforementioned heat dissipation system integrating a liquid-cooled back door and a chiller includes a cooling pipe component comprising multiple U-shaped pipes connected in sequence, with each cooling pipe component having an inlet pipe and a return pipe at its top.

[0012] The aforementioned liquid-cooled back door and chiller integrated heat dissipation system includes a liquid inlet structure comprising a horizontally arranged liquid inlet branch pipe, the vertical part of which is connected to the liquid supply connector, and multiple branch ports on the liquid inlet branch pipe, which are connected to the branch ports.

[0013] The aforementioned liquid-cooled back door and chiller integrated heat dissipation system includes a return liquid structure comprising a horizontally arranged return liquid collection pipe, the vertical part of which is connected to a return liquid connector, the return liquid connector having multiple return ports, and the return liquid pipe being connected to the return ports.

[0014] In the above technical solution, the improved liquid-cooled back door and chiller integrated heat dissipation system provided by this utility model has an installation chamber and a heat dissipation chamber inside the cabinet. The heat dissipation chamber is located directly above the installation chamber, and the chiller is installed in the heat dissipation chamber. The liquid-cooled back door is located on the side of the installation chamber. The chiller is equipped with a liquid supply pipe and a liquid return pipe, and the liquid-cooled back door is equipped with a cooling pipe assembly. The cooling pipe assembly is connected to the liquid supply pipe and the liquid return pipe. In this way, the chiller and the liquid-cooled back door are arranged inside the same cabinet. The chiller, the liquid supply pipe, the cooling pipe assembly on the liquid-cooled back door, and the liquid return pipe form a heat dissipation system inside the cabinet, reducing heat loss and improving the heat dissipation effect of the cabinet. 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 An installation diagram of the improved liquid-cooled back door and chiller integrated heat dissipation system provided for an embodiment of this 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 This is a schematic diagram of the structure of the cooling pipe assembly provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Cabinet; 11. Installation Chamber; 12. Heat Dissipation Chamber; 13. Chiller; 14. Liquid Supply Pipeline; 141. Liquid Supply Connector; 15. Liquid Return Pipeline; 151. Liquid Return Connector; 2. Liquid Cooling Back Door; 21. Cooling Pipe Assembly; 22. Cooling Pipe Component; 221. U-tube; 222. Liquid Inlet Pipe; 223. Liquid Return Pipe; 23. Frame; 231. Left Panel; 232. Right Panel; 233. Top Connecting Plate; 234. Bottom Connecting Plate; 235. Horizontal Fixing Plate; 24. Liquid Inlet Structure; 241. Liquid Inlet Diverter Pipe; 25. Liquid Return Structure; 251. Liquid Return Collection Pipe; 26. Drainage Chamber; 27. Drainage Structure. Detailed Implementation

[0021] 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.

[0022] like Figure 1-3As shown, this utility model provides an improved heat dissipation system integrating a liquid-cooled back door and a chiller, including a chiller 13 and a liquid-cooled back door 2. An installation chamber 11 and a heat dissipation chamber 12 are provided inside the cabinet 1. The heat dissipation chamber 12 is located directly above the installation chamber 11. The chiller 13 is installed in the heat dissipation chamber 12. The liquid-cooled back door 2 is located on one side of the installation chamber 11. The chiller 13 is provided with a liquid supply pipe 14 and a liquid return pipe 15. The liquid supply pipe 14 has a liquid supply connector 141 inside the installation chamber 11, and the liquid return pipe 15 has a liquid return connector 151 inside the installation chamber 11. The liquid-cooled back door 2 is provided with a cooling pipe assembly 21. A liquid inlet structure 24 and a liquid return structure 25 connected to the cooling pipe assembly 21 are provided on the top of the liquid-cooled back door 2. The liquid inlet structure 24 is connected to the liquid supply connector 141, and the liquid return structure 25 is connected to the liquid return connector 151.

[0023] Specifically, the cabinet 1 is a cabinet in the prior art. The cabinet 1 has an installation chamber 11 and a heat dissipation chamber 12 inside. The heat dissipation chamber 12 is located on top of the installation chamber 11. The heat dissipation chamber 12 and the installation chamber 11 are two independent chambers. The installation chamber 11 is used for the installation of related equipment, and the heat dissipation chamber 12 is used for the installation of the chiller 13. The chiller 13 can be an air-cooled chiller 13. The chiller 13 is prior art and will not be described in detail. A liquid supply line 14 and a liquid return line 15 are provided in the heat dissipation chamber 12. Both the liquid supply line 14 and the liquid return line 15 are connected to the chiller 13. The liquid supply line 14 is provided with a liquid supply connector 141 in the installation chamber 11, and the liquid return line 15 is provided with a liquid return connector 151 in the installation chamber 11. Both the liquid supply connector 141 and the liquid return connector 151 are provided with control valves. The liquid supply line 14 and the liquid return line 15 can be controlled by the control valves, so that the liquid supply line 14 and the liquid return line 15 can be opened or closed.

[0024] In this embodiment, the liquid-cooled back door 2 is fixedly installed on the side of the installation chamber 11 during use. A cooling pipe assembly 21 is provided on the liquid-cooled back door 2, arranged sequentially along the back door, thus forming a large cooling area. This cooling area can cool the air. A liquid inlet structure 24 and a liquid return structure 25 are provided on the liquid-cooled back door 2, both connected to the cooling pipe assembly 21. After the liquid-cooled back door 2 is fixedly installed on the cabinet 1, the liquid inlet structure 24 is connected to the liquid supply connector 141, and the liquid return structure 25 is connected to the liquid return connector 151. The liquid supply line 14, liquid supply connector 141, liquid inlet structure 24, cooling pipe assembly 21, liquid return structure 25, liquid return connector 151, liquid return line 15, and chiller 13 are connected in sequence. The chiller 13 supplies liquid refrigerant to the cooling pipe assembly 21 through the liquid supply line 14, liquid supply connector 141, and liquid inlet structure 24. The liquid refrigerant is sequentially transported along the cooling pipe assembly 21 to exchange heat with the hot air. The liquid refrigerant after heat exchange in the cooling pipe assembly 21 is transported from the liquid return structure 25, liquid return connector 151, and liquid return line 15 to the chiller 13.

[0025] The improved liquid-cooled back door 2 and chiller 13 integrated heat dissipation system provided by this utility model has an installation chamber 11 and a heat dissipation chamber 12 inside the cabinet 1. The heat dissipation chamber 12 is located directly above the installation chamber 11, and the chiller 13 is installed in the heat dissipation chamber 12. The liquid-cooled back door 2 is installed on one side of the installation chamber 11. The chiller 13 is provided with a liquid supply pipe 14 and a liquid return pipe 15. The liquid-cooled back door 2 is provided with a cooling pipe assembly 21, which is connected to the liquid supply pipe 14 and the liquid return pipe 15. In this way, the chiller 13 and the liquid-cooled back door 2 are arranged inside the same cabinet 1. The chiller 13, the liquid supply pipe 14, the cooling pipe assembly 21 on the liquid-cooled back door 2 and the liquid return pipe 15 form a heat dissipation system inside the cabinet 1, reducing heat loss and improving the heat dissipation effect of the cabinet 1.

[0026] In this embodiment, preferably, the cooling pipe assembly 21 includes a frame 23 and a plurality of cooling pipe components 22 disposed on the frame 23. The plurality of cooling pipe components 22 are arranged sequentially at intervals along the width direction of the frame 23. The cooling pipe components 22 are arranged in a direction perpendicular to the liquid cooling back door 2. A gap is formed between the cooling pipe components 22 to allow for the flow of heated air, thereby achieving heat dissipation.

[0027] In this embodiment, preferably, the frame 23 includes a left plate 231 and a right plate 232 arranged opposite to each other. The tops of the left plate 231 and the right plate 232 are connected by a top connecting plate 233, and the bottoms of the left plate 231 and the right plate 232 are connected by a bottom connecting plate 234. Thus, the left plate 231, the right plate 232, the top connecting plate 233 and the bottom connecting plate 234 are connected to form a U-shaped frame 23 structure. A horizontal fixing plate 235 is also horizontally placed on the frame 23. There is at least one horizontal fixing plate 235, and the horizontal fixing plate 235 is arranged parallel to the top connecting plate 233. The number of horizontal fixing plates 235 is set as needed. During the installation process, the cooling pipe assembly 21 is fixed by the horizontal fixing plate 235 and the top connecting plate 233, so that each cooling pipe assembly 21 is arranged parallel to each other.

[0028] In this embodiment, preferably, there is a certain gap between the bottom of the cooling pipe component 22 and the bottom connecting plate 234 to form a drain cavity 26 for condensate to be discharged. A drain structure 27 is provided on the bottom connecting plate 234, and a groove is provided on the bottom connecting plate 234. The drain structure 27 includes drain holes and vertical drain pipes provided on the drain holes. There are at least three drain holes, and each drain hole is provided with a vertical drain pipe. A main drain pipe is connected to the vertical drain pipes. In this way, the condensate generated during the operation of the cooling pipe component 21 can be collected and discharged through the vertical drain pipes and the main drain pipe.

[0029] In this embodiment, preferably, the cooling pipe component 22 includes a plurality of U-shaped pipes 221 connected in sequence, the plurality of U-shaped pipes 221 being connected in sequence to form a serpentine cooling pipe body, and each cooling pipe component 22 having an inlet pipe 222 and a return pipe 223 at its top, the inlet pipe 222 being connected to the inlet end of the cooling pipe body, and the return pipe 223 being connected to the outlet end of the cooling pipe body.

[0030] In this embodiment, preferably, the liquid inlet structure 24 includes a horizontally arranged liquid inlet diversion pipe 241, the vertical part of which is connected to the liquid supply connector 141. The vertical part is an integrally formed vertical pipe on the liquid inlet separation pipe. The liquid inlet diversion pipe 241 is provided with multiple diversion ports. The liquid inlet pipe 222 is connected to the diversion ports. The liquid return structure 25 includes a horizontally arranged liquid return collection pipe 251, the vertical part of which is connected to the liquid return connector 151. The vertical part is an integrally formed vertical pipe on the liquid return collection pipe 251. The liquid return connector 151 is provided with multiple return ports. The liquid return pipe 223 is connected to the return ports.

[0031] During operation, the chiller 13 supplies liquid refrigerant to the liquid inlet structure 24 through the liquid supply pipe 14 and the liquid supply connector 141. The liquid refrigerant is distributed to each cooling pipe component 22 through the liquid inlet diversion pipe 241. The liquid refrigerant is sequentially transported along the cooling pipe assembly 21 to exchange heat with the hot air. The liquid refrigerant after heat exchange in the cooling pipe assembly 21 is transported to the return liquid collection pipe 251 and then transported back to the chiller 13 through the return liquid collection pipe 251, the return liquid connector 151, and the return liquid pipe 15.

[0032] 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. An improved heat dissipation system integrating a liquid-cooled back door and a chiller, characterized in that, The device includes a chiller and a liquid-cooled back door. An installation chamber and a heat dissipation chamber are located within the cabinet. The heat dissipation chamber is located directly above the installation chamber. The chiller is housed within the heat dissipation chamber. The liquid-cooled back door is located on one side of the installation chamber. The chiller is equipped with a liquid supply pipe and a liquid return pipe. The liquid supply pipe has a liquid supply connector within the installation chamber, and the liquid return pipe has a liquid return connector within the installation chamber. The liquid-cooled back door is equipped with a cooling pipe assembly. A liquid inlet structure and a liquid return structure, connected to the cooling pipe assembly, are located at the top of the liquid-cooled back door. The liquid inlet structure is connected to the liquid supply connector, and the liquid return structure is connected to the liquid return connector.

2. The heat dissipation system integrating a liquid-cooled back door and a chiller according to claim 1, characterized in that, The cooling pipe assembly includes a frame and a plurality of cooling pipe components disposed on the frame, wherein the plurality of cooling pipe components are arranged at intervals along the width direction of the frame.

3. The heat dissipation system integrating a liquid-cooled back door and a chiller according to claim 2, characterized in that, The frame includes a left plate and a right plate arranged opposite to each other. The tops of the left plate and the right plate are connected by a top connecting plate, and the bottoms of the left plate and the right plate are connected by a bottom connecting plate.

4. The heat dissipation system integrating a liquid-cooled back door and a chiller according to claim 3, characterized in that, A horizontal fixing plate is also placed horizontally on the frame, and there is at least one horizontal fixing plate. The horizontal fixing plate is arranged parallel to the top connecting part.

5. The heat dissipation system integrating a liquid-cooled back door and a chiller according to claim 4, characterized in that, There is a certain gap between the bottom of the cooling pipe component and the bottom connecting plate to form a drainage cavity for condensate to drain out, and the bottom connecting plate is provided with a drainage structure.

6. The heat dissipation system integrating a liquid-cooled back door and a chiller according to claim 5, characterized in that, The cooling pipe assembly includes multiple U-shaped pipes connected in sequence, and each cooling pipe assembly has an inlet pipe and a return pipe at its top.

7. The heat dissipation system integrating a liquid-cooled back door and a chiller according to claim 6, characterized in that, The liquid inlet structure includes a horizontally arranged liquid inlet diversion pipe, the vertical part of which is connected to the liquid supply connector. The liquid inlet diversion pipe is provided with multiple diversion ports, and the liquid inlet pipe is connected to the diversion ports.

8. The heat dissipation system integrating a liquid-cooled back door and a chiller according to claim 7, characterized in that, The liquid return structure includes a horizontally arranged liquid return collection pipe, the vertical part of which is connected to the liquid return connector. The liquid return connector is provided with multiple return ports, and the liquid return pipe is connected to the return ports.

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