A wind and liquid CDU unit

Abstract

The utility model relates to data center temperature control technical field, specifically disclose a kind of wind liquid CDU unit. The wind liquid CDU unit includes cabinet, fan, heat exchanger and refrigeration device. Among them, fan is located at the first side of cabinet;Heat exchanger is located at cabinet and is located at the side of fan, heat exchanger is relatively first side and is inclined to set;Refrigeration device is connected with heat exchanger, refrigeration device and heat exchanger are used to be connected with the object to be radiated, and refrigeration device is located below heat exchanger. The wind liquid CDU unit, maintenance work can be completed in centralized location, reduce movement and repeat preparation time. And key components are concentrated, do not need to disassemble multiple position components when replacing, and work efficiency is improved. Fault point is concentrated, need not to check multiple points, shorten the diagnosis time, and then improve the maintenance response speed. Refrigeration device is located below heat exchanger, will not cause the obstruction to air duct, thus can effectively reduce wind resistance, so that wind liquid CDU can bring greater refrigerating capacity.

Description

Technical Field

[0001] This utility model relates to the field of data center temperature control technology, and more specifically, to a wind-liquid CDU unit. Background Technology

[0002] With the rapid development of internet technology, data centers, as the foundation of the information industry, are increasingly emphasizing their energy consumption. Cooling Distribution Units (CDUs) are thermal management devices based on liquid cooling technology. They transfer the heat generated in the data center to a cooling medium, which then dissipates the heat through a cooling system.

[0003] In the process of developing this application, the inventors discovered at least the following problems in the prior art:

[0004] In typical air-cooled CDU units, relatively cool air passes outside the heat exchanger, exchanging heat with the hot fluid entering the exchanger. This raises the air temperature and creates a cooler fluid, which is then distributed and delivered to the server system to dissipate heat from the server equipment. Due to size limitations in data center server rooms, the cooling components are arranged front-to-back with the heat exchanger, which occupies a significant amount of space. This dispersed arrangement results in a wide system coverage, slower maintenance response times, and a greater number of maintenance points. It also increases air resistance, reduces airflow and heat exchange capacity, leading to slightly lower unit performance. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a wind-liquid CDU unit, the structural design of which can effectively solve the problems of multiple maintenance points and slow response speed of refrigeration components.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wind-liquid CDU unit, comprising:

[0008] Server rack;

[0009] A fan is located on the first side of the cabinet;

[0010] A heat exchanger is disposed in the cabinet and located on one side of the fan, and the heat exchanger is inclined relative to the first side;

[0011] A refrigeration device is connected to the heat exchanger. The refrigeration device and the heat exchanger are used to connect to the object to be cooled. The refrigeration device is located below the heat exchanger.

[0012] Optionally, in the above-mentioned air-liquid CDU unit, the refrigeration device includes a liquid pump, a filter, and an expansion tank connected to the inlet of the heat exchanger, wherein the filter is integrated into the outlet of the liquid pump and located above the liquid pump.

[0013] Optionally, in the above-mentioned air-liquid CDU unit, the main inlet pipe and the main outlet pipe of the air-liquid CDU are located on the second side of the cabinet, the second side being opposite to the first side, and the inlet of the main inlet pipe and the outlet of the main outlet pipe are both located at the top of the cabinet.

[0014] Optionally, in the above-mentioned air-liquid CDU unit, the fan is provided with a male fan connector terminal, and the cabinet is provided with a female fan connector terminal. The fan and the cabinet are detachably connected. When the fan and the cabinet are fixedly connected, the male fan connector terminal and the female fan connector terminal are electrically connected. When the fan and the cabinet are detached, the male fan connector terminal and the female fan connector terminal are disconnected from the electrical connection.

[0015] Optionally, in the above-mentioned air-liquid CDU unit, the cabinet is provided with support ribs, the fan is screwed to the support ribs, and the inner end face of the fan abuts against the support ribs, and the outer end face abuts against the head end of the screws.

[0016] Optionally, in the above-mentioned air-liquid CDU unit, the cabinet is provided with a limiting plate, the limiting plate forms an installation groove, and the fan is installed in the installation groove.

[0017] Optionally, the above-mentioned air-liquid CDU unit also includes an electrical control box, which is located above the cabinet.

[0018] Optionally, the above-mentioned air-liquid CDU unit includes at least two heat exchangers, which are arranged vertically in sequence in the cabinet. Each heat exchanger is laid horizontally, and at least two heat exchangers have one end close to each other and the other end far apart to form a preset angle, with the opening of the preset angle facing the fan.

[0019] Optionally, the above-mentioned air-liquid CDU unit includes a first return liquid branch and a second return liquid branch connected in parallel to the heat exchange inlet of the heat exchanger. The refrigeration device includes a first filter, a first liquid pump, and a first valve capable of controlling the on / off state of the two ends of the first return liquid branch connected in series in the first return liquid branch. The refrigeration device also includes a second filter, a second liquid pump, and a second valve capable of controlling the on / off state of the two ends of the second return liquid branch connected in series in the second return liquid branch.

[0020] Optionally, in the above-mentioned air-liquid CDU unit, the height of the cabinet is greater than the width of the cabinet, and the height of the cabinet is greater than the depth of the cabinet.

[0021] The air-liquid CDU unit provided by this utility model includes a cabinet, a fan, a heat exchanger, and a refrigeration device. The fan is located on the first side of the cabinet; the heat exchanger is located in the cabinet and on one side of the fan, with the heat exchanger inclined relative to the first side; the refrigeration device is connected to the heat exchanger, and the refrigeration device and heat exchanger are used to connect to the object to be cooled, with the refrigeration device located below the heat exchanger.

[0022] The air-liquid CDU unit provided by this utility model has a fan located on the first side of the cabinet, and a heat exchanger located on one side of the fan and inclined relative to the first side. This maximizes space utilization and increases the heat exchange area of ​​the heat exchanger. The refrigeration components, which work in conjunction with the heat exchanger, are located below it. This centralized arrangement of the refrigeration components facilitates unified management and maintenance of the air-liquid CDU unit, allowing repairs to be completed in a central location, reducing relocation and repetitive preparation time. Furthermore, the concentration of critical components eliminates the need to disassemble components in multiple locations during replacement, improving work efficiency. The centralized location of fault points eliminates the need for multi-point troubleshooting, shortening diagnostic time and improving repair response speed. On the other hand, the location of the refrigeration components below the heat exchanger does not obstruct the airflow, effectively reducing air resistance and providing a larger air volume, thus enabling the air-liquid CDU to deliver a greater cooling capacity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a wind-liquid CDU unit according to a specific embodiment of the present invention;

[0025] Figure 2 This is a front view schematic diagram of a specific embodiment of the air-liquid CDU unit of this utility model;

[0026] Figure 3 for Figure 2 The left view;

[0027] Figure 4 for Figure 2 The right view;

[0028] Figure 5 for Figure 2 Rear view;

[0029] Figure 6 This is a schematic diagram of the internal components of a CDU unit according to a specific embodiment of the present invention;

[0030] Figure 7 for Figure 6 Side view;

[0031] Figure 8 This is a schematic diagram of the fan installation according to a specific embodiment of the present invention;

[0032] Figure 9 for Figure 8 Enlarged diagram of part A;

[0033] Figure 10 This is a schematic diagram showing the fan in disassembled state;

[0034] Figure 11 for Figure 10 Enlarged diagram of part A;

[0035] Figure 12 This is a schematic diagram of the CDU unit according to a specific embodiment of the present invention.

[0036] Figure label:

[0037] 1-Rack; 2-Fan; 3-Heat exchanger; 4-Refrigeration components; 5-Main liquid inlet pipe; 6-Main liquid outlet pipe; 7-Electrical control box; 8-First liquid return branch; 9-Second liquid return branch;

[0038] 101-First side; 102-Second side; 103-Female end of fan connector; 104-Support rib; 105-Limiting plate;

[0039] 201 - Male terminal for fan connector;

[0040] 401 - Filter; 402 - Liquid pump; 403 - Expansion tank; 404 - Replenishment tank;

[0041] 801 - First filter; 802 - First liquid pump; 803 - First valve; 804 - First check valve; 805 - First injection nozzle; 806 - First drain valve;

[0042] 901 - Second filter; 902 - Second liquid pump; 903 - Second valve; 904 - Second check valve; 905 - Second injection nozzle; 906 - Second drain valve. Detailed Implementation

[0043] This utility model discloses a wind-liquid CDU to improve the maintenance convenience of refrigeration devices and the heat exchange performance of the unit.

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] The air-liquid CDU unit provided in this application is applicable to, but not limited to, data centers. The circulating working fluid in the air-liquid CDU unit provides cooling to the object to be cooled; exemplarily, this cooling is achieved through a liquid pump inside the air-liquid CDU unit. In this embodiment, the object to be cooled is the server terminal cold plate in a server, used to dissipate heat from the server. Driven by a fan, relatively cool air passes outside the heat exchanger of the air-liquid CDU unit. The cool air exchanges heat with the high-temperature circulating working fluid inside the heat exchanger, causing the air temperature to rise. Simultaneously, a low-temperature circulating working fluid is obtained, which is then distributed and transported into the cold plate, thereby dissipating heat from the server terminal. In other embodiments, the object to be cooled can also be other structures requiring cooling or heat dissipation.

[0046] In this application, by designing the layout of each component in the air-liquid CDU unit, it is possible to reduce the unit's air resistance, provide more air volume, achieve greater heat exchange, and have good maintenance convenience within a certain cabinet size.

[0047] In some embodiments, please refer to Figures 1-7The air-liquid CDU unit provided by this utility model includes a cabinet 1, a fan 2, a heat exchanger 3, and a refrigeration device 4. The cabinet 1 is the main supporting structure of the air-liquid CDU unit, providing installation space for other components. It is understood that the structure of the cabinet 1 can be configured as needed; it can be a cabinet structure with doors or a frame structure. The fan 2 is located on the first side 101 of the cabinet 1. The heat exchanger 3 is located inside the cabinet 1 and on one side of the fan 2, with the heat exchanger 3 inclined relative to the first side 101. The fan 2, located on the side of the cabinet 1, forms an air duct corresponding to both sides of the heat exchanger 3. That is, air enters from one side of the cabinet 1, passes through the heat exchanger 3, and exits from the other side of the cabinet 1, achieving sufficient heat exchange between the cold air and the heat exchanger 3. The refrigeration device 4 is connected to the heat exchanger 3, and both the refrigeration device 4 and the heat exchanger 3 are used to connect to the object to be cooled. The heat exchanger 3 has its heat exchange inlet connected to the return end of the object to be cooled, and its heat exchange outlet connected to the inlet of the object to be cooled, forming a circulation loop. The circulation loop includes a filter 401, a liquid pump 402, and an expansion tank 403. For example, a liquid pump 402 and an expansion tank 403 are provided between the heat exchange inlet and the return end of the heat exchanger 3, and a filter 401 is provided between the heat exchange inlet and the return end of the heat exchanger 3, or between the outlet and the inlet end of the heat exchanger 3. It is understood that the refrigeration device 4 in this embodiment includes at least a main component located within the circulation loop. The refrigeration device 4 is located below the heat exchanger 3, meaning it is centrally arranged and located below the heat exchanger 3. Furthermore, the refrigeration device 4 is located outside the air duct, thus not obstructing the air duct.

[0048] The air-liquid CDU unit provided by this utility model has a fan 2 located on the first side 101 of the cabinet 1, and a heat exchanger 3 located on one side of the fan 2 and inclined relative to the first side 101. This design fully utilizes space and increases the heat exchange area of ​​the heat exchanger 3. The refrigeration device 4, which works in conjunction with the heat exchanger 3, is located below the heat exchanger 3. This centralized arrangement of the refrigeration device 4 facilitates unified management and maintenance of the air-liquid CDU unit, allowing repairs to be completed in a centralized location, reducing relocation and repetitive preparation time. Furthermore, the centralized location of key components eliminates the need to disassemble components in multiple locations during replacement, improving work efficiency. The centralized location of fault points eliminates the need for multi-point troubleshooting, shortening diagnostic time and improving repair response speed. On the other hand, the location of the refrigeration device 4 below the heat exchanger 3 does not obstruct the air duct, effectively reducing wind resistance and providing a larger airflow, thus enabling the air-liquid CDU to deliver a greater cooling capacity.

[0049] In some embodiments, the refrigeration device 4 includes at least one of a liquid pump 402, a filter 401, an expansion tank 403, and a replenishment tank 404 connected to the heat exchange inlet of the heat exchanger 3. On one hand, the liquid pump 402, filter 401, and expansion tank 403 require inspection and maintenance during CDU unit operation; therefore, they are located below the heat exchanger 3 to improve maintenance convenience. On the other hand, the filter 401, liquid pump 402, expansion tank 403, and replenishment tank 404 are relatively large; placing them below the heat exchanger 3 avoids obstructing the airflow and reduces air resistance. For example, the refrigeration device 4 includes various large-volume components within the circulation loop, such as the filter 401, liquid pump 402, and expansion tank 403, to facilitate maintenance of these components.

[0050] In some embodiments, filter 401 is integrated into the outlet of liquid pump 402 and located above liquid pump 402. The integrated arrangement of filter 401 and liquid pump 402 saves space and allows for simultaneous maintenance, simplifying operation. Furthermore, installing filter 401 after liquid pump 402 helps ensure consistency of the circulating working fluid throughout the circulation loop. Additionally, if liquid pump 402 malfunctions or requires maintenance, filter 401 provides protection by preventing impurities in the system from flowing back into liquid pump 402.

[0051] In some embodiments, the main inlet pipe 5 and the main outlet pipe 6 of the air-liquid CDU are located on the second side 102 of the cabinet 1, opposite to the first side 101, with the inlet of the main inlet pipe 5 and the outlet of the main outlet pipe 6 both located at the top of the cabinet 1. The location of the main inlet pipe 5 and the main outlet pipe 6 on the second side 102 of the cabinet 1 minimizes airflow resistance due to their small size, thus their placement on the second side 102 does not significantly affect airflow while fully utilizing the space of the cabinet 1. Furthermore, by concentrating the inlet of the main inlet pipe 5 and the outlet of the main outlet pipe 6 at the top, the pipes are prevented from coiling inside the cabinet 1, maximizing the use of limited space. Additionally, the interfaces are located on the same plane, facilitating quick maintenance and pipe connection operations, reducing equipment downtime during maintenance. Moreover, the top location of the interfaces reduces the impact of vibration at pipe connections, lowers the risk of leakage due to mechanical stress, and the high-level arrangement prevents dust accumulation on the ground from contaminating the interfaces.

[0052] In some embodiments, sensors such as flow sensors located on the main inlet pipe 5 and the main outlet pipe 6 are also located on the second side 102, while other devices in the circulation loop are located at the bottom of the cabinet 1. That is, in the direction of the heat exchanger 3 and the air duct, only the necessary main pipes and a small number of sensors are left, while the remaining large-volume wind-blocking devices are concentrated in the lower part to effectively reduce wind resistance, provide a larger air volume, and thus bring a larger cooling capacity. For example, the filter 401, liquid pump 402, expansion tank 403, replenishment tank 404, sensors, and most of the refrigeration pipes are located at the bottom of the cabinet 1 to reduce wind resistance.

[0053] In some embodiments, please refer to Figures 8-10 The fan 2 is equipped with a male connector 201, and the cabinet 1 is equipped with a female connector 103. The fan 2 and the cabinet 1 are detachably connected. When the fan 2 and the cabinet 1 are fixedly connected, the male connector 201 and the female connector 103 are electrically connected. When the fan 2 and the cabinet 1 are detached, the male connector 201 and the female connector 103 are disconnected. It can be understood that the male connector 201 and the female connector 103 are two mating connection ends, and their specific structures can be configured as needed. Since the male connector 201 and the female connector 103 can both be electrically connected and disconnected, and the fan 2 and the cabinet 1 are detachably connected, the fan can be hot-swapped for maintenance, thus supporting online replacement without shutting down the unit.

[0054] In some embodiments, the male end 201 and the female end 103 of the fan connector are snapped together, and electrical connection is achieved when they are snapped together. When they are disconnected, the electrical connection is disconnected accordingly. With this configuration, the male end 201 and the female end 103 of the fan connector can provide both electrical and mechanical connection, making it easier to assemble and disassemble the fan 2.

[0055] In some embodiments, the fan 2 is screwed to the cabinet 1. The screws secure the fan 2 to the cabinet 1, ensuring reliable installation of the fan 2, and the screw connection is easy to install and remove.

[0056] In some embodiments, the cabinet 1 is provided with a support rib 104, and the fan 2 is screwed to the support rib 104. The inner end face of the fan 2 abuts against the support rib 104, and the outer end face abuts against the head of the screw. The head of the screw is located outside the outer end face of the fan 2, so the fan 2 can be operated from the outside during installation, providing a large operating space and further facilitating disassembly and assembly. In addition, the support rib 104 provides reliable support for the fan 2.

[0057] In some embodiments, the cabinet 1 is provided with a limiting plate 105, which forms a mounting groove, and the fan 2 is disposed in the mounting groove. By using the limiting plate 105 to form the mounting groove, that is, the limiting plate 105 forms the side wall of the mounting groove, the limiting effect of the limiting plate 105 can achieve precise positioning of the fan 2, thereby facilitating the alignment of the male end 201 of the fan connector and the female end 103 of the fan connector for reliable electrical connection.

[0058] In some embodiments, the air-liquid CDU unit further includes an electrical control box 7, which is located above the cabinet 1. In this embodiment, the electrical control box 7 is positioned above the cabinet 1. Firstly, placing the electrical control box 7 above allows operators to perform inspections and maintenance while standing, eliminating the need to bend over or squat, making operation more convenient and comfortable. Secondly, external placement of the electrical control box 7, i.e., outside the cabinet 1, further facilitates maintenance. Furthermore, with the cooling device 4 located at the bottom of the cabinet 1 and the electrical control box 7 located above, even if a leak occurs at the location of the cooling device 4, it will not affect the electrical control box 7, improving control reliability. Additionally, placing the electrical control box 7 above the cabinet 1 does not obstruct the airflow, further reducing air resistance.

[0059] In some embodiments, please refer to Figure 11The air-liquid CDU unit includes a first return liquid branch 8 and a second return liquid branch 9 connected in parallel to the heat exchange inlet of the heat exchanger 3. The refrigeration device 4 includes a first filter 801, a first liquid pump 802, and a first valve 803 connected in series within the first return liquid branch 8, capable of controlling the on / off state of both ends of the first return liquid branch 8. The refrigeration device 4 also includes a second filter 901, a second liquid pump 902, and a second valve 903 connected in series within the second return liquid branch 9, capable of controlling the on / off state of both ends of the second return liquid branch 9. In other words, the air-liquid CDU unit includes a first return liquid branch 8 and a second return liquid branch 9. Specifically, the first return liquid branch 8 includes a first filter 801, a first liquid pump 802, and a first valve 803 connected in series within the heat exchange inlet; the second return liquid branch 9 is connected in parallel with the first return liquid branch 8 at the heat exchange inlet, and the second return liquid branch 9 includes a second filter 901, a second liquid pump 902, and a second valve 903 connected in series within the second return liquid branch 9. In this embodiment, the liquid pump 402 includes a first liquid pump 802 and a second liquid pump 902, and the filter 401 includes a first filter 801 and a second filter 901. It is understood that the specific sequential relationship of the first filter 801, the first liquid pump 802, and the first valve 803 connected in series is not limited here. For example, the first return liquid branch 8 includes a first valve 803, a first filter 801, a first liquid pump 802, and another first valve 803 connected in series from one end near the heat exchange inlet. The specific sequential relationship of the second filter 901, the second liquid pump 902, and the second valve 903 connected in series is not limited here. For example, the second return liquid branch 9 includes a second valve 903, a second filter 901, a second liquid pump 902, and another second valve 903 connected in series from one end near the heat exchange inlet. As configured above, the first return liquid branch 8 can be disconnected from both the heat exchanger 3 and the object to be cooled via the first valve 803, facilitating maintenance of the first liquid pump 802 and the first filter 801 within the first return liquid branch 8, while the second return liquid branch 9 maintains normal operation of the circulation loop. Alternatively, the second return liquid branch 9 can be disconnected from both the heat exchanger 3 and the object to be cooled via the second valve 903, facilitating maintenance of the second liquid pump 902 and the second filter 901 within the second return liquid branch 9, while the first return liquid branch 8 maintains normal operation of the circulation loop. With the above configuration, both the liquid pump 402 and the filter 401 can support maintenance without shutting down the unit. Furthermore, this embodiment provides parallel backups of the first liquid pump 802 and the first filter 801, as well as the second liquid pump 902 and the second filter 901, saving space and allowing for backup of both devices within a compact space.

[0060] In some embodiments, the first return liquid branch 8 is provided with at least one of a first check valve 804, a first injection nozzle 805, and a first drain valve 806, with the first drain valve 806 located between two first valves 803. By providing the first check valve 804, the flow direction of the circulating working fluid in the first return liquid branch 8 can be limited to the direction from the end of the object to be cooled to the end of the heat exchange inlet. The first drain valve 806 can discharge the circulating working fluid in the first return liquid branch 8 after the first valve 803 disconnects the first return liquid branch 8 from the heat exchanger 3 and the object to be cooled, facilitating the inspection or maintenance of the first liquid pump 802 or the first filter 801. Specifically, the first drain valve 806 can be a ball valve. The first injection nozzle 805 allows for convenient replenishment of liquid into the first return liquid branch 8.

[0061] In some embodiments, the second return branch 9 is provided with at least one of a second one-way valve 904, a second injection nozzle 905, and a second drain valve 906, with the second drain valve 906 located between the two second valves 903. The functions of each device are the same as in the above embodiments, and will not be repeated here.

[0062] In some embodiments, please refer to Figures 6-7 The air-liquid CDU unit includes at least two heat exchangers 3, which are arranged vertically in sequence within the cabinet 1. At least two heat exchangers 3 are positioned with one end close to the other end at a predetermined angle, with the opening of the predetermined angle facing the fan 2. The number of heat exchangers 3 can be adjusted according to space and heat dissipation requirements, and is not specifically limited here. In the case of multiple heat exchangers 3, at least two of the multiple heat exchangers 3 are distributed at a predetermined angle. Preferably, the multiple heat exchangers 3 are grouped in pairs, each distributed at a predetermined angle. The predetermined angle ranges from 0 degrees to less than 180 degrees, and both heat exchangers 3 are inclined to fully utilize space and increase the heat exchange area. For example, the two heat exchangers 3 are V-shaped. In this embodiment, two heat exchangers 3 are arranged vertically in sequence within the cabinet 1, and each heat exchanger 3 is laid horizontally. Unlike the conventional method of vertically placing heat exchangers 3, this embodiment places the heat exchangers 3 horizontally at a certain angle to the horizontal plane, thus making full use of vertical space, which is especially suitable for environments with large vertical usable space, such as data centers. This further increases the heat exchange area of ​​the heat exchangers 3 within a limited space, improving heat exchange efficiency.

[0063] For example, two heat exchangers 3 are symmetrically arranged, and two heat exchangers 3 form a group. Multiple groups of heat exchangers 3 are arranged vertically in sequence and placed as a whole on the upper part of the cabinet 1. The refrigeration device 4 is located at the bottom of the cabinet 1, and the electrical control box 7 is located on the top of the cabinet 1 to increase the heat exchange area and reduce the air resistance of the heat exchangers 3. With the above arrangement, the heat exchange performance of the same size cabinet 1 can be 1.5-2 times that under the same operating conditions.

[0064] In some embodiments, the air-liquid CDU unit is equipped with a display, which is located at the middle of one end of the two heat exchangers 3 that are close to each other. For example, the display is located at the position of the middle plate of the heat exchanger 3 to reduce air resistance.

[0065] In some embodiments, the height of the cabinet 1 is greater than its width, and the height of the cabinet 1 is greater than its depth. The greater height of the cabinet 1 provides more vertical space, and the arrangement of the heat exchanger 3 as described above improves space utilization, increasing the heat exchange area within a limited space. For example, the depth of the cabinet 1 is greater than its width, and the opening at a preset angle faces one side of the depth direction. The heat exchanger 3 can fully utilize the larger depth space, further increasing the heat exchange area.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind-liquid CDU train, characterized in that, include: Server rack (1); A fan (2) is located on the first side (101) of the cabinet (1). The heat exchanger (3) is located inside the cabinet (1) and on one side of the fan (2). The heat exchanger (3) is inclined relative to the first side (101). A refrigeration device (4) is connected to the heat exchanger (3). The refrigeration device (4) and the heat exchanger (3) are used to connect to the object to be cooled. The refrigeration device (4) is located below the heat exchanger (3).

2. The wind hydronic CDU unit of claim 1, wherein, The refrigeration device (4) includes a filter (401), a liquid pump (402) and an expansion tank (403) connected to the inlet of the heat exchanger (3). The filter (401) is integrated into the outlet of the liquid pump (402) and located above the liquid pump (402).

3. The wind hydronic CDU package of claim 2, wherein, The main inlet pipe (5) and main outlet pipe (6) of the air-liquid CDU unit are located on the second side (102) of the cabinet (1), the second side (102) is opposite to the first side (101), and the inlet of the main inlet pipe (5) and the outlet of the main outlet pipe (6) are both located at the top of the cabinet (1).

4. The wind-to-liquid CDU unit of any of claims 1 to 3, characterized in that The fan (2) is provided with a male fan connector (201), and the cabinet (1) is provided with a female fan connector (103). The fan (2) and the cabinet (1) are detachably connected. When the fan (2) and the cabinet (1) are fixedly connected, the male fan connector (201) and the female fan connector (103) are electrically connected. When the fan (2) and the cabinet (1) are detached, the male fan connector (201) and the female fan connector (103) are disconnected from each other.

5. The wind hydrolu minous CDU unit of claim 4, wherein, The cabinet (1) is provided with a support rib (104), the fan (2) is screwed to the support rib (104), and the inner end face of the fan (2) abuts against the support rib (104), and the outer end face abuts against the head end of the screw.

6. The wind hydronic CDU unit of claim 4, wherein, The cabinet (1) is provided with a limiting plate (105), which forms an installation groove, and the fan (2) is located in the installation groove.

7. The wind-liquid CDU train of claim 1, wherein, It also includes an electrical control box (7), which is located above the cabinet (1).

8. The wind-liquid CDU train of claim 1, wherein, It includes at least two heat exchangers (3), which are arranged vertically in the cabinet (1). Each heat exchanger (3) is laid horizontally, and at least two heat exchangers (3) are close to each other at one end and far apart at the other end to form a preset angle. The opening of the preset angle faces the fan (2).

9. The wind hydrolu minous CDU unit of claim 8, wherein, The refrigeration device (4) includes a first return liquid branch (8) and a second return liquid branch (9) connected in parallel to the heat exchange inlet of the heat exchanger (3). The refrigeration device (4) includes a first filter (801), a first liquid pump (802) connected in series in the first return liquid branch (8) and a first valve (803) capable of controlling the opening and closing of both ends of the first return liquid branch (8). The refrigeration device (4) also includes a second filter (901), a second liquid pump (902) connected in series in the second return liquid branch (9) and a second valve (903) capable of controlling the opening and closing of both ends of the second return liquid branch (9).

10. The wind hydronic CDU unit of claim 8, wherein, The height of the cabinet (1) is greater than the width of the cabinet (1), and the height of the cabinet (1) is greater than the depth of the cabinet (1).

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