Cabinet, and cabinet-mounted equipment

Abstract

The present application relates to the technical field of heat dissipation. Provided is a cabinet, and cabinet-mounted equipment. The cabinet comprises a cabinet main body and a cooling distribution unit. The cabinet main body comprises: a cabinet body; and a back door, which is arranged at a second open end of the cabinet body and can open and close the second open end. The cooling distribution unit comprises a control circuit, a heat exchanger, and a transfer pump which is electrically connected to the control circuit. The cooling distribution unit further comprises a first circulation line and a second circulation line, the first circulation line being configured to be connected to a cold source, and the second circulation line being configured to be connected to a cooling flow channel in a functional unit. The heat exchanger is provided with a first flow channel and a second flow channel which are isolated from each other, the first flow channel being connected into the first circulation line, and the second flow channel and the transfer pump being both connected in the second circulation line. At least one of the control circuit, the heat exchanger and the transfer pump is fixed to the back door. The cabinet and the cabinet-mounted equipment solve the problem of a centralized cooling distribution unit requiring a large space independently and thus incapable of being flexibly deployed.

Description

A cabinet and cabinet-type equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410540936.7, filed on April 26, 2024, entitled "A cabinet and cabinet-type equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of heat dissipation technology, and in particular to a cabinet and cabinet-type equipment. Background Technology

[0004] Liquid-cooled cooling distribution units (CDUs) are crucial components in industries such as telecommunications and IT, playing a vital role in ensuring equipment heat dissipation. Currently, the most common type of CDU is the centralized CDU, where the equipment to be cooled is located separately from the CDU, connected to it via piping. One CDU can cool multiple devices. However, when using centralized CDUs for cooling, they require a significant amount of space and are not flexible in deployment. Summary of the Invention

[0005] This application provides a cabinet and cabinet-type equipment, which can avoid the problem that centralized cooling distribution devices are too large and thus have great limitations in practical applications.

[0006] Firstly, this application provides a cabinet comprising a cabinet body and a cooling distribution device. The cabinet body includes a cabinet main body and a back door. The cabinet main body has a first open end and a second open end disposed opposite to each other. The first open end is used for personnel to access or disassemble functional units. The back door is disposed at the second open end and is capable of opening and closing the second open end. The cooling distribution device includes a control circuit, a heat exchanger, and a delivery pump. The control circuit is electrically connected to the delivery pump and is used to control the flow rate of the delivery pump. The cooling distribution device also includes a first circulation pipe and a second circulation pipe. The first circulation pipe is used to connect to a cold source, and the second circulation pipe is used to connect to a cooling channel in the functional unit. The heat exchanger has a first flow channel and a second flow channel that are isolated from each other. The first flow channel is connected to the first circulation pipe, and the second flow channel and the delivery pump are both connected to the second circulation pipe. At least one of the control circuit, the heat exchanger, and the delivery pump is fixed to the back door. In this solution, the cabinet includes a cooling distribution device, so there is no need to install additional cooling or heat dissipation devices, which can reduce the workload of on-site assembly and piping connections. On the other hand, at least one of the three components in the cooling distribution device—the control circuit, the heat exchanger, and the delivery pump—is fixed to the back door of the cabinet. This means that at least a portion of the cooling distribution device is fixed to the back door, which fully utilizes the internal space of the cabinet. This reduces the significant space occupation of the cooling distribution device on the external space of the cabinet while effectively utilizing the space of the back door, making it highly versatile. Alternatively, it can be understood that the cabinet provided in this application avoids the layout of a centralized cooling distribution device, thus avoiding the problems of large space occupation and inflexible deployment associated with centralized cooling distribution devices. Furthermore, the back door can open and close the second open end of the cabinet body, allowing maintenance of the functional units inside the cabinet and the components of the cooling distribution device from the second open end, making maintenance of both the functional units and the cooling distribution device more convenient.

[0007] In one possible embodiment, the cooling distribution device includes a condenser with a first condensation channel. The first condensation channel is connected to a second circulation pipeline, and the delivery pump is positioned upstream of the functional unit. The first condensation channel is located upstream of a second flow channel and downstream of the cooling flow channel of the functional unit. The medium in the second circulation pipeline is a gas-liquid two-phase medium, which is vaporized within the cooling flow channel of the functional unit and liquefied within the first condensation channel. This effectively prevents gas from entering the delivery pump and affecting its normal operation, while also ensuring more thorough cooling of the medium entering the cooling flow channel of the functional unit, thus achieving more efficient heat dissipation for the functional unit.

[0008] In one possible embodiment, the condenser includes a second condensing channel isolated from the first condensing channel, the second condensing channel being used to connect to a cold source.

[0009] In one possible embodiment, the condenser is housed within a cabinet, and the orthographic projection of the condenser at the second open end is offset from the orthographic projection of at least a portion of the functional interfaces of the functional unit at the second open end. This facilitates the insertion and removal of components by an operator through the functional interfaces.

[0010] In one possible embodiment, the cabinet body includes a first sidewall and a second sidewall, both of which are connected between a first open end and a second open end; the condenser is located at the second open end and abuts against either the first or second sidewall. That is, the condenser is offset at the second open end, which makes it easier for operators to insert and remove components from the functional interfaces.

[0011] In one possible embodiment, the cabinet body includes a base plate, and the cabinet satisfies at least one of the following:

[0012] The cooling capacity distribution device includes a first filter connected to the first circulation pipeline. The first filter is fixed to the back door or to the inner surface of the base plate. The first filter is located upstream of the first flow channel. The first filter can filter the medium entering the first flow channel and the second condensation channel, thereby reducing the possibility of the first flow channel and the second condensation channel being blocked by foreign objects.

[0013] The cooling capacity distribution device includes a second filter connected to the second circulation pipeline. The second filter is fixed to the back door or the inner surface of the base plate. The second filter is located downstream of the delivery pump and upstream of the cooling channel of the functional unit to filter the medium entering the medium channel of the functional unit, thereby reducing the possibility of the medium channel of the functional unit being blocked by foreign objects.

[0014] The cooling capacity distribution device includes a fluid purification structure, which is fixed to the back door or the inner surface of the base plate. The medium inlet of the fluid purification structure is connected to the pipeline between the medium outlet of the delivery pump and the medium inlet of the cooling channel of the functional unit. The medium outlet of the fluid purification structure is connected to the first condensing channel of the condenser to purify the medium entering the first condensing channel of the condenser, thereby reducing the possibility of the first condensing channel of the condenser being blocked by foreign objects.

[0015] In one possible embodiment, the cooling distribution device includes a liquid storage tank. Along the direction of gravity, the condenser is located above the heat exchanger, and the liquid storage tank is located between the condenser and the heat exchanger. The liquid storage tank is fixed to a back door, or it is fixed to the inner surface of a base plate. The liquid storage tank is connected to a second circulation pipeline, located downstream of the first condensation channel and upstream of the second flow channel. In this way, while storing the medium through the liquid storage tank, the medium in the second circulation pipeline b can also flow under gravity.

[0016] In one possible embodiment, the cooling distribution device includes a liquid storage tank, a heat exchanger located within the liquid storage tank along the direction of gravity, and a condenser located above the liquid storage tank. The liquid storage tank is fixed to the back door, or it is fixed to the inner surface of the base plate. The liquid storage tank is connected to a second circulation pipeline and is located downstream of the first condensation channel and upstream of the delivery pump. In this design, the heat exchanger is located within the liquid storage tank, eliminating the need for additional space within or outside the cabinet, which helps to further reduce the cabinet size and allows for more flexible cabinet layout.

[0017] In one possible embodiment, the cooling distribution device includes a replenishment pump, the medium outlet of which is connected to a storage tank. The replenishment pump is used to replenish the storage tank to compensate for the medium lost due to leakage.

[0018] In one possible embodiment, the cooling distribution device is integrated into the cabinet. In addition, at least one of the control circuit, heat exchanger and delivery pump is fixed to the back door of the cabinet. That is, the originally large cooling distribution device is disassembled and distributed inside the cabinet and on the back door. The components of the cooling distribution device are distributed in the cabinet, which is conducive to the full utilization of the internal space of the cabinet, making the cabinet smaller and facilitating flexible layout.

[0019] Secondly, this application provides a rack-mounted device, which includes the rack provided in the first aspect of the technical solution and at least one functional unit fixed inside the rack. The cooling channels of the functional unit are connected to a second circulation pipeline. This rack-mounted device includes the aforementioned rack, and therefore, at least achieves the technical effects achievable by the aforementioned rack. That is, on the one hand, no additional cooling or heat dissipation devices are needed, reducing the workload of on-site assembly and pipeline connections; on the other hand, at least one of the control circuit, heat exchanger, and transfer pump in the cooling distribution device is fixed to the back door of the rack. This fully utilizes the internal space of the rack, reducing the external space occupied by the cooling distribution device, and making the rack smaller and more versatile. It avoids the problem of centralized CDUs requiring a large separate space and being inflexible in deployment when using centralized cooling distribution devices. Furthermore, the back door can open and close the second open end of the rack body, allowing maintenance of the functional units inside the rack and the components of the cooling distribution device from the second open end, making maintenance of both the functional units and the cooling distribution device more convenient.

[0020] In one possible embodiment, at least a portion of the functional interfaces of the functional unit face the second open end of the cabinet body, thereby enabling the insertion and removal of components through the second open end in the functional interface, facilitating the use and maintenance of the functional unit. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the heat dissipation system of a data center server;

[0022] Figure 2 is a three-dimensional structural diagram of a cabinet provided in an embodiment of this application;

[0023] Figure 3 is a schematic diagram of the media flow direction of the cabinet shown in Figure 2;

[0024] Figure 4 is a three-dimensional structural diagram of a cabinet provided in an embodiment of this application;

[0025] Figure 5 is a schematic diagram of the media flow direction of the cabinet shown in Figure 4;

[0026] Figure 6 is a three-dimensional structural diagram of a cabinet provided in an embodiment of this application;

[0027] Figure 7 is a schematic diagram of the media flow direction of a cabinet provided in an embodiment of this application;

[0028] Figure 8 is a schematic diagram of the media flow direction of a cabinet provided in an embodiment of this application;

[0029] Figure 9 is a schematic diagram of the media flow direction of a cabinet provided in an embodiment of this application;

[0030] Figure 10 is a schematic diagram of the media flow direction of a cabinet provided in an embodiment of this application;

[0031] Figure 11 is a schematic diagram of the media flow direction of a cabinet provided in an embodiment of this application;

[0032] Figure 12 is a schematic diagram of the media flow direction of a cabinet provided in an embodiment of this application;

[0033] Figure 13 is a schematic diagram of the media flow direction of a cabinet provided in an embodiment of this application;

[0034] Figure 14 is a side view of a rack-type device provided in an embodiment of this application;

[0035] Figure 15 is a front view of another rack-type device provided in an embodiment of this application;

[0036] Figure 16 is a side view of the rack-type equipment shown in Figure 15.

[0037] Reference numerals: 1-Cabinet body; 11-Cabinet main body; 111-Base plate; 112-First side wall; 113-Second side wall; 13-Back door; 101-First open end; 102-Second open end; 2-Cold energy distribution device; 21-Control circuit; 221-Heat exchanger; 2211-First flow channel; 2212-Second flow channel; 222-Condenser; 2221-First condensing channel; 2222-Second condensing channel; 2223-Water distributor; 23-Transfer pump; 24-First filter; 25-The... 26-Fluid purification structure; 27-Storage tank; 28-Replenishment pump; 29-Replenishment tank; 30-First flow meter; 31-First flow regulating valve; 32-Second flow meter; 33-Second flow regulating valve; 34-Mechanical safety valve; 35-Solenoid exhaust valve; 36-Airbag; 100-Rack; 200-Functional unit; 300-Input pipe; 400-Output pipe; 500-Cooling distribution device; 600-Cooling tower; 700-Server; 800-Power supply unit; 900-Switch. Detailed Implementation

[0038] Rack-mounted cooling equipment, such as data center servers, typically requires cooling through a cooling distribution system, as shown in Figure 1. A cooling tower 600 is generally used to liquid cool the server 700 in the data center. Heat exchange occurs between the primary fluid on one side of the cooling tower 600 and the secondary fluid on the other side of the server 700 via a cooling distribution system 500. Currently, centralized cooling distribution systems are the most common type. However, using a centralized cooling distribution system to cool rack-mounted equipment requires a large dedicated space, limiting its flexible deployment and application.

[0039] Based on this, embodiments of this application provide a cabinet and cabinet-type equipment to solve the problem that cabinet-type equipment requiring heat dissipation uses a centralized cooling distribution device for heat dissipation, which requires a large space, cannot be flexibly deployed, and has many limitations in application. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings.

[0040] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more” unless the context clearly indicates otherwise.

[0041] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0042] Figure 2 is a three-dimensional structural diagram of a cabinet 100 provided in an embodiment of this application, and Figure 3 is a schematic diagram of the medium flow direction of the cabinet 100 shown in Figure 2. As shown in Figures 2 and 3, the cabinet 100 provided in this embodiment of the application includes a cabinet body 1 and a cooling capacity distribution device 2. The cabinet body 1 includes a cabinet body 11 and a back door 13. Specifically, the cabinet body 11 has a first open end 101 and a second open end 102 disposed opposite to each other. The first open end 101 is used for staff to take, put, or disassemble the functional unit 200. The back door 13 is disposed at the second open end 102 and can be opened and closed relative to the second open end 102. That is, when the back door 13 is open, the second open end 102 is connected to the outside, and when the back door 13 is closed, the second open end 102 is closed. The connection method between the back door 13 and the cabinet body 11 is not limited in this application. In one possible implementation, the back door 13 and the cabinet body 11 are detachably fixedly connected, that is, the back door 13 is fixedly connected to the cabinet body 11, and the back door 13 can be detached from the cabinet body 11. For example, the back door 13 and the cabinet body 11 can be connected by bolts. In another possible implementation, the back door 13 and the cabinet body 11 are connected by hinges. Furthermore, it should be noted that Figure 2 is only one possible cabinet 100 provided by an embodiment of this application. In the cabinet 100 provided by this application, the back door 13 may include a door as shown in Figure 2. Further, the door may be connected to a side wall of the cabinet body 11 by a hinge and may be able to rotate relative to the cabinet body 11. In other embodiments of this application, the back door 13 may also be connected to the top or bottom wall of the cabinet body 11 by a hinge. The back door 13 may also include two doors that open outwards. Further, the two doors may be connected to a pair of side walls of the cabinet 1 by hinges respectively. Alternatively, the back door 13 and the connection between the back door 13 and the cabinet body 11 may also take other forms.

[0043] Next, the cooling capacity distribution device 2 will be described. Please refer to Figures 2 and 3. The cooling capacity distribution device 2 includes a control circuit 21, a heat exchanger 221, and a delivery pump 23. The control circuit 21 is electrically connected to the delivery pump 23 and is used to control the flow rate of the delivery pump 23. At least one of the three components—control circuit 21, heat exchanger 221, and delivery pump 23—is fixed to the back door 13. Exemplarily, the control circuit 21 and the delivery pump 23 can be connected via a cable. It is easy to understand that, in specific implementations, when the control circuit 21, heat exchanger 221, or delivery pump 23 is fixed to the back door 13 of the cabinet 1, it can be fixed to either the inner surface or the outer surface of the back door 13. When fixed to the outer surface of the back door 13, a protective cover can be fixedly connected to the back door 13 for protection. The protective cover and the back door 13 together enclose a receiving cavity. The structure of the control circuit 21, heat exchanger 221, and delivery pump 23 fixed to the back door 13 is located within the aforementioned receiving cavity. For example, along the direction of gravity, the heat exchanger 221 is located above the transfer pump 23.

[0044] Furthermore, the cooling distribution device 2 includes a first circulation pipe a (shown as a dashed line in Figure 3) and a second circulation pipe b (shown as a solid line in Figure 3). The first circulation pipe a is used to connect to a cold source, and the second circulation pipe b is used to connect to the cooling flow channel of the functional unit 200. The heat exchanger 221 has a first flow channel 2211 and a second flow channel 2212 that are isolated from each other. The first flow channel 2211 is connected in the first circulation pipe a, and the second flow channel 2212 and the transfer pump 23 are both connected in the second circulation pipe b. That is, the first flow channel 2211 is part of the first circulation pipe a, and the second flow channel 2212 and the transfer pump 23 are both part of the second circulation pipe b. It is easy to understand that the medium in the first flow channel 2211 can exchange heat with the medium in the second flow channel 2212. For example, as shown in FIG3, the first circulation pipeline a further includes an input pipe 300 and an output pipe 400. The medium inlet of the first flow channel 2211 is used to connect to the medium outlet I of the cold source through the input pipe 300, and the medium outlet of the first flow channel 2211 is used to connect to the medium inlet O of the cold source through the output pipe 400. The second circulation pipeline b further includes multiple connecting pipes and pipe fittings corresponding one-to-one with the functional unit 200. The medium outlet of the second flow channel 2212 is connected to the medium inlet of the delivery pump 23 through the connecting pipe, the medium outlet of the delivery pump 23 is connected to the medium inlet of the cooling flow channel of the functional unit 200 through the connecting pipe, and the medium outlet of the cooling flow channel of the functional unit 200 is connected to the medium inlet of the second flow channel 2212 through the pipe fitting.

[0045] In this solution, on the one hand, the cabinet 100 includes a cooling distribution device 2, so there is no need to set up additional cooling or heat dissipation devices, which can reduce the workload of on-site assembly and piping connection. On the other hand, at least one of the three components of the cooling distribution device 2—control circuit 21, heat exchanger 221, and delivery pump 23—is fixed to the back door 13 of the cabinet 1. That is, at least part of the structure of the cooling distribution device 2 is fixed to the back door 13 of the cabinet 1. This can make full use of the internal space of the cabinet 1, reduce the significant space occupation of the cooling distribution device 2 on the external space of the cabinet, and effectively utilize the space of the back door 13, making it highly versatile. Alternatively, it can be understood that the cabinet 100 provided in this application embodiment can avoid the layout of a centralized cooling distribution device, thereby avoiding the problems of large space occupation and inflexible deployment caused by the use of a centralized cooling distribution device. In addition, the back door 13 can open and close the second open end 102 of the cabinet body 11, so that the functional unit 200 inside the cabinet 100 can be maintained from the second open end 102, and the components of the cooling distribution device 2 can also be maintained from the second open end 102, making the maintenance of the functional unit 200 and the cooling distribution device 2 inside the cabinet 100 more convenient.

[0046] Next, the configuration of heat exchanger 221 will be described. In specific implementations, the cooling capacity distribution device 2 may include one heat exchanger 221 or multiple heat exchangers 221. The phrase "at least one of the control circuit 21, heat exchanger 221, and delivery pump 23 is fixed to the back door 13" mentioned above specifically refers to one, two, or three of the control circuit 21, heat exchanger 221, and delivery pump 23 being fixed to the back door 13. When it refers to heat exchanger 221 being fixed to the back door 13, it means that at least one heat exchanger 221 is fixed to the back door 13. Of course, in other embodiments, the cabinet 1 may include a base plate 111, with any heat exchanger 221 fixed to the inner or outer surface of the base plate 111. It is easy to understand that this is not an exhaustive list; the heat exchanger 221 may also be located in other positions on the cabinet 1.

[0047] In one specific implementation, the cooling capacity distribution device 2 includes multiple heat exchangers 221 connected in parallel. Specifically, the first flow channel 2211 of each heat exchanger 221 is connected between the medium outlet I and the medium inlet O of the cold source, and the second flow channel 2212 of each heat exchanger 221 is connected between the medium outlet of the functional unit 200 and the medium inlet of the transfer pump 23. In this case, the functional unit 200 and the heat exchanger 221 can be connected in a one-to-one correspondence, or each heat exchanger 221 can be connected to at least one functional unit 200, and each functional unit 200 can be connected to a heat exchanger 221. In another specific implementation, the cold energy distribution device 2 includes multiple heat exchangers 221 connected in series. Taking a heat exchanger 221 comprising a first heat exchanger, a second heat exchanger, and at least one third heat exchanger as an example, the medium inlet of the first flow channel 2211 of the first heat exchanger is connected to the medium outlet I of the cold source, and the medium outlet of the first flow channel 2211 of the second heat exchanger is connected to the medium inlet O of the cold source. The first heat exchanger, the third heat exchanger, and the first flow channel 2211 of the second heat exchanger are connected sequentially. The medium inlet of the second flow channel 2212 of the second heat exchanger is connected to the medium outlet of the functional unit 200, and the medium outlet of the second flow channel 2212 of the first heat exchanger is connected to the medium inlet of the transfer pump 23. The second heat exchanger, the third heat exchanger, and the second flow channel 2212 of the first heat exchanger are connected sequentially.

[0048] For example, heat exchangers include, but are not limited to, plate heat exchangers.

[0049] Figure 4 is a three-dimensional structural schematic diagram of a cabinet 100 provided in an embodiment of this application, and Figure 5 is a schematic diagram of the medium flow direction of the cabinet 100 shown in Figure 4. As shown in Figures 4 and 5, in some embodiments, the cabinet 100 includes a condenser 222, which includes a first condensation channel 2221. The first condensation channel 2221 is used for the flow of a first medium, wherein the first medium is a gas-liquid two-phase medium. That is, the first medium can realize the transformation between the gas phase and the liquid phase in the second circulation pipeline b, thereby achieving a better heat transfer effect. Specifically, the first condensation channel 2221 is connected in the second circulation pipeline b, and the delivery pump 23 is located upstream of the functional unit 200. The first condensation channel 2221 is located upstream of the second flow channel 2212 of the heat exchanger 221, and the first condensation channel 2221 is used to connect the cooling flow channel of the functional unit 200 with the second flow channel 2212 of the heat exchanger 221. That is, the cooling flow channel of the functional unit 200 is located upstream of the second flow channel 2212 of the heat exchanger 221. In this way, on the one hand, it can effectively prevent the gaseous first medium from entering the delivery pump 23 and affecting its normal operation; on the other hand, it can promote the condensation and liquefaction of the gaseous first medium in the first condensation channel 2221 before entering the cooling flow channel of the functional unit 200, thereby providing more efficient heat dissipation for the functional unit 200. It should be understood that the delivery pump 23 is used to transport the medium in the second circulation pipeline b to the functional unit 200 via the delivery pump 23. Similarly, the first condensation channel 2221 is located upstream of the second flow channel 2212 of the heat exchanger 221, meaning that the medium in the second circulation pipeline b flows to the second flow channel 2212 of the heat exchanger 221 via the first condensation channel 2221. Furthermore, the second flow channel 2212 of both the delivery pump 23 and the heat exchanger 221 is connected to the second circulation pipe b, which is used to connect to the cooling flow channel of the functional unit 200. The delivery pump 23 is located upstream of the functional unit 200, and the first condensation channel 2221 is located upstream of the second flow channel 2212 of the heat exchanger 221. It is easy to see that the second flow channel 2212 of the heat exchanger 221 is located upstream of the delivery pump 23.

[0050] In a specific implementation, the condenser 222 also includes a second condensing channel 2222 isolated from the first condensing channel 2221. The second condensing channel 2222 is used to connect to a cold source. The medium in the second condensing channel 2222 can exchange heat with the medium in the first condensing channel 2221, thereby causing the gaseous first medium to condense and liquefy within the first condensing channel 2221. Taking the medium in the first circulation pipe a as the first medium and the medium in the second circulation pipe b as the second medium as an example, the first medium can be water, oil, etc., and the second medium can be water, oil, or a material that can achieve two-phase transformation, such as Freon.

[0051] For example, there is at least one condenser 222, which is located above the heat exchanger 221 and the transfer pump 23 along the direction of gravity, and the heat exchanger 221 is located above the transfer pump 23. Specifically, each condenser 222 includes a second condensing channel 2222 and a first condensing channel 2221 that are isolated from each other. The second condensing channel 2222 is connected between the medium outlet and the medium inlet of the cold source, and the first condensing channel 2221 is connected between the medium outlet of the functional unit 200 and the medium inlet of the second flow channel 2212. That is, the medium inlet of the second condensing channel 2222 is used to connect to the medium outlet of the cold source, and the medium outlet of the second condensing channel 2222 is used to connect to the medium inlet of the cold source; the medium outlet of the first condensing channel 2221 is connected to the medium inlet of the second flow channel 2212, and the medium inlet of the first condensing channel 2221 is connected to the medium outlet of the cooling flow channel of the functional unit 200.

[0052] In one specific implementation, the cooling capacity distribution device 2 includes multiple condensers 222, which can be connected in parallel. Specifically, the second condensation channel 2222 of each condenser 222 is connected between the medium outlet and the medium inlet of the cold source, and the first condensation channel 2221 of each condenser 222 is connected between the medium outlet of the functional unit 200 and the medium inlet of the second flow channel 2212. In another specific implementation, the cooling capacity distribution device 2 includes multiple condensers 222, which are connected in series. Taking a cooling capacity distribution device 2 including a first condenser, a second condenser, and at least one third condenser as an example, the medium inlet of the second condensation channel 2222 of the first condenser is connected to the medium outlet of the cold source, the medium outlet of the second condensation channel 2222 of the second condenser 222 is connected to the medium inlet of the cold source, and the second condensation channels 2222 of the first condenser, the third condenser, and the second condenser are connected sequentially. The medium inlet of the first condensing channel 2221 of the second condenser 222 is connected to the medium outlet of the functional unit 200, the medium outlet of the second flow channel 2212 of the first condenser 222 is connected to the medium inlet of the second flow channel 2212 of the heat exchanger, and the second condenser, the third condenser and the first condensing channel 2221 of the first condenser are connected in sequence.

[0053] For example, when the cooling capacity distribution device 2 includes a plurality of heat exchangers 221 and a plurality of condensers 222, the plurality of heat exchangers 221 may include at least one heat exchanger group, the plurality of condensers 222 may include at least one condenser group, and each condenser group is connected to at least one heat exchanger group, each heat exchanger group is connected to a condenser group, and each functional unit 200 is connected to a heat exchanger group.

[0054] In some embodiments, when specifically configuring the condenser 222, the condenser 222 is disposed within the cabinet 100, and the orthographic projection of the condenser 222 on the second open end 102 is offset from the orthographic projection of at least some functional interfaces of the functional unit 200 on the second open end 102. That is, at least some functional interfaces of the functional unit 200 are not obstructed by the condenser 222 on the second open end 102. This facilitates the operator in plugging and unplugging cables from the functional interfaces. For example, the cabinet body 11 includes a first sidewall 112 and a second sidewall 113, both of which are connected between the first open end 101 and the second open end 102. The condenser 222 is located on the second open end 102, and the condenser 222 abuts against either the first sidewall 112 or the second sidewall 113, meaning the condenser 222 is offset on the second open end 102. This further facilitates the operator in plugging and unplugging cables from the functional interfaces. It should be understood that the functional interface of the functional unit 200 can be an interface for inserting cards, an interface for installing optical fibers or network cables, etc.

[0055] In some possible implementations, the first condensing channel 2221 and the second condensing channel 2222 of the condenser 222 both extend along the direction from the top plate of the cabinet body 11 towards the bottom plate 111. That is, the condenser 222 stands upright at the second open end 102 of the cabinet body 11 to facilitate smoother flow of the second medium in the second circulation pipe b. It should be noted that the condenser 222 standing upright at the second open end 102 of the cabinet body 11 does not mean that the condenser 222 is strictly perpendicular to the horizontal plane, but rather that machining and assembly errors are allowed.

[0056] Figure 6 is a three-dimensional structural diagram of a cabinet 100 provided in an embodiment of this application, and Figures 7 to 9 are schematic diagrams of the medium flow direction of a cabinet 100 provided in an embodiment of this application. As shown in Figures 6 and 7, the cabinet body 11 includes a base plate 111. In a specific embodiment, the cold energy distribution device 2 includes a first filter 24 connected to the first circulation pipe a. The first filter 24 is fixed to the back door 13, or the first filter 24 is fixed to the inner surface of the base plate 111. The first filter 24 is located upstream of the first flow channel 2211 of the heat exchanger 221, that is, the first medium discharged from the medium outlet of the cold source flows to the first flow channel 2211 of the heat exchanger 221 after passing through the first filter 24. The first filter 24 can filter the first medium entering the first flow channel 2211 and the second condensation channel 2222, thereby reducing the possibility of the first flow channel 2211 and the second condensation channel 2222 being blocked by foreign objects. As shown in Figures 6 and 8, in some embodiments, the cooling capacity distribution device 2 includes a second filter 25 connected to the second circulation pipe b. The second filter 25 is fixed to the back door 13, or the second filter 25 is fixed to the inner surface of the base plate 111. The second filter 25 is located downstream of the delivery pump 23 and upstream of the cooling channel of the functional unit 200 to filter the second medium entering the cooling channel of the functional unit 200, thereby reducing the possibility of the medium channel of the functional unit 200 being blocked by foreign objects. As shown in Figures 6 and 9, in some embodiments, the cooling capacity distribution device 2 includes a fluid purification structure 26, which is fixed to the back door 13, or the fluid purification structure 26 is fixed to the inner surface of the base plate 111. The medium inlet of the fluid purification structure 26 is connected to the pipeline between the medium outlet of the delivery pump 23 and the medium inlet of the cooling channel of the functional unit 200. The medium outlet of the fluid purification structure 26 is connected to the first condensation channel 2221 of the condenser 222 to purify the second medium entering the first condensation channel 2221 of the condenser 222, thereby reducing the possibility of the first condensation channel 2221 of the condenser 222 being blocked by foreign objects.

[0057] Of course, the cooling capacity distribution device 2 can also simultaneously satisfy two or three of the above conditions. That is, the cooling capacity distribution device 2 can simultaneously include the first filter 24 and the second filter 25, or simultaneously include the first filter 24 and the fluid purification structure 26, or simultaneously include the second filter 25 and the fluid purification structure 26, or simultaneously include the first filter 24, the second filter 25, and the fluid purification structure 26, as shown in Figure 10. Exemplarily, the control circuit and the fluid purification structure 26 are fixed to the back door of the cabinet to facilitate operation of the control circuit and maintenance of the fluid purification structure 26.

[0058] Figure 11 is a schematic diagram of the medium flow direction of a cabinet 100 provided in an embodiment of this application. As shown in Figure 11, in a specific implementation, the cooling capacity distribution device 2 includes a liquid storage tank 27. Along the direction of gravity, the condenser 222 is located above the heat exchanger 221, and the liquid storage tank 27 is located between the condenser 222 and the heat exchanger 221. The liquid storage tank 27 is connected to the second circulation pipeline b, and the liquid storage tank 27 is located downstream of the first condensation channel 2221 and upstream of the second flow channel 2212. In this way, while storing the second medium through the liquid storage tank 27, the second medium in the second circulation pipeline b can also flow under the action of gravity. Exemplarily, the liquid storage tank 27 is fixed to the back door 13, or the liquid storage tank 27 is fixed to the inner surface of the base plate 111. It is worth noting that the condenser 222 is located above the heat exchanger 221 along the direction of gravity. It is not limited that the condenser 222 and the heat exchanger 221 are located on the same straight line in the direction of gravity. As long as the distance between the condenser 222 and the bottom plate 111 of the cabinet body 11 is greater than the distance between the heat exchanger 221 and the bottom plate 111 of the cabinet body 11 in the direction of gravity, it is acceptable.

[0059] Figure 12 is a schematic diagram of the medium flow direction of a cabinet 100 provided in an embodiment of this application. Referring to Figures 6 and 12, in another specific implementation, the cooling capacity distribution device 2 includes a liquid storage tank 27, a heat exchanger 221 located within the liquid storage tank 27, and a condenser 222 located above the liquid storage tank 27 along the direction of gravity. The liquid storage tank 27 is connected to the second circulation pipeline b, and is located downstream of the first condensation channel 2221 and upstream of the delivery pump 23. In this scheme, the heat exchanger 221 is located within the liquid storage tank 27, eliminating the need for additional space within or outside the cabinet, which helps to further reduce the volume of the cabinet 100, thereby enabling more flexible arrangement of the cabinet 100. Exemplarily, the liquid storage tank 27 is fixed to the back door 13, or the liquid storage tank 27 is fixed to the inner surface of the base plate 111.

[0060] Figure 13 is a schematic diagram of the media flow direction of a cabinet 100 provided in an embodiment of this application. Referring to Figures 6 and 13, in a specific implementation, the cooling capacity distribution device 2 includes a replenishment pump 28. The media outlet of the replenishment pump 28 is connected to a storage tank 27. The replenishment pump 28 is used to replenish the second media in the storage tank 27 to compensate for the second media lost due to leakage. Exemplarily, the cooling capacity distribution device 2 may also include a replenishment tank 29, which is used to store the liquid to be replenished to the storage tank 27. The media inlet of the replenishment pump 28 is connected to the replenishment tank 29. It should be understood that the replenishment pump is activated only during the initial startup of the cooling capacity distribution device and when the amount of the second media in the second circulation pipeline is lower than a preset value.

[0061] In some embodiments, the cooling distribution device 2 is integrated into the cabinet 1, meaning that all components of the cooling distribution device 2 are fixed within the cabinet 1. Furthermore, at least one of the control circuit 21, heat exchanger 221, and delivery pump 23 is fixed to the back door 13 of the cabinet 1. This means that the originally large cooling distribution device 2 is disassembled and distributed within the cabinet and on the back door 13. The distributed arrangement of components within the cooling distribution device 2 within the cabinet 1 facilitates full utilization of the internal space of the cabinet 1, resulting in a smaller cabinet 100 and allowing for more flexible layout.

[0062] In one specific implementation, the liquid storage tank 27, the fluid purification structure 26, the replenishment pump 28, and the control circuit 21 are all installed on the back door 13 of the cabinet 1. The liquid storage tank 27, the fluid purification structure 26, and the replenishment pump 28 are connected to the second circulation pipeline b via hoses, thereby enabling the cabinet 100 to switch the back door 13 on and off in online status. Furthermore, the condenser 222 is located at the second open end 102 and abuts against the first side wall 112 or the second side wall 113 of the cabinet body 11. That is, the condenser 222 is on one side of the second open end 102, thus freeing up space on the other side of the second open end 102 for operators to maintain the functional unit 200 or the cooling capacity distribution device 2. The heat exchanger 221 is immersed in the liquid storage tank 27, sharing the same volume with the liquid storage tank 27, improving integration and avoiding occupying more space. The delivery pump 23 is placed at the bottom of the cabinet 100, occupying part of the remaining height space inside the cabinet, preventing the cabinet 100 from being too deep. The cooling capacity distribution device 2 is directly connected to the functional unit 200, eliminating the need for secondary piping. Each functional unit 200 can be installed and maintained independently, and the cooling capacity distribution device 2 and the cabinet 1 can be transported as a whole unit.

[0063] In another specific implementation, components such as the transfer pump 23, heat exchanger 221, liquid storage tank 27, and fluid purification structure 26 are installed under the floor F of the mounting space where the cabinet 100 is located. The liquid storage tank 27 and the fluid purification structure 26 are connected to the condenser 222 via hoses. When there are components of the cooling distribution device 2 on the back door 13, the components on the back door 13 are also connected to the corresponding first circulation pipe a or second circulation pipe b via hoses. In this way, the cabinet height space occupied by the cooling distribution device 2 can be reduced, allowing the cabinet 100 to be smaller in size, and online opening and closing of the back door 13 can be supported. In practice, the components under the floor F can be transported separately from the cabinet 1 and assembled on site.

[0064] In some embodiments, all components of the cooling distribution device 2 may be mounted on the back door 13 and connected to the functional unit 200 via flexible hoses. Additionally, radiators may be installed at the air outlets of the cabinet 100 to further enhance the cooling capacity of the cabinet 100.

[0065] For example, referring to Figure 13, the cooling capacity distribution device 2 further includes a mechanical safety valve 34, an electromagnetic exhaust valve 35, a first flow meter 30, a first flow regulating valve 31, a second flow meter 32, a second flow regulating valve 33, and an air bladder 36. The first flow meter 30 and the first flow regulating valve 31 are connected to the first circulation pipe a, and both are located downstream of the second condensation channel of the condenser 222. The first flow meter 30 measures the flow rate of its connected pipe, and the first flow regulating valve 31 regulates the flow rate of its connected pipe. The second flow meter 32 and the second flow regulating valve 33 are connected to the second circulation pipe b, and both are connected between the medium outlet of the fluid purification structure 26 and the first condensation channel 2221 of the condenser 222. The second flow meter 32 measures the flow rate of its connected pipe, and the second flow regulating valve 33 regulates the flow rate of its connected pipe. A third flow meter and a third flow regulating valve can be installed on the pipeline between the medium outlet of the cold source and the first filter 24. The third flow meter is used to measure the flow rate of the pipeline it is connected to, and the third flow regulating valve is used to regulate the flow rate of the pipeline it is connected to. The mechanical safety valve 34, the electromagnetic exhaust valve 35, and the air bladder 36 are all connected to the first condensing channel 2221 of the condenser 222. The air bladder 26 is used to maintain pressure balance in the second circulation pipeline. The electromagnetic exhaust valve 35 is connected to the control circuit and can open under the action of the control circuit to release pressure when the pressure in the first condensing channel exceeds a first preset value. The mechanical safety valve 34 is used to open when the pressure in the first condensing channel 2221 exceeds a second preset value to release pressure. The second preset value is greater than the first preset value; that is, the mechanical safety valve 34 opens when the electromagnetic exhaust valve 35 malfunctions and the pressure in the first condensing channel 2221 exceeds the second preset value. The first flow regulating valve 31 and the second flow regulating valve 33 are both connected to the control circuit. For example, the second flow meter and the second flow regulating valve are both installed on the back door.

[0066] The cabinet 100 mentioned in this embodiment can be a standard cabinet 100, for example, the internal space of the cabinet 100 has a height of 47U (unit, 1U equals 4.445 cm), wherein, from top to bottom, there is a 9U for setting up the power supply unit 800, a 34U for arranging the functional unit 200, and a 4U for installing the transfer pump 23. Exemplarily, the transfer pump 23 can be one or multiple pumps connected in parallel. When multiple transfer pumps 23 are connected in parallel, the multiple transfer pumps 23 can include at least one working transfer pump and at least one backup transfer pump. The working transfer pump is used for media transfer, and the backup transfer pump is used to operate when the working transfer pump fails, to ensure the normal operation of the cooling capacity distribution device. When the condenser 222 is set on one side of the second open end 102 of the cabinet body 11, the distance between the condenser 222 and the other side wall of the cabinet 100 body can be 360 ​​mm. Of course, the cabinet 100 mentioned in this embodiment can also be a non-standard cabinet 100.

[0067] Figure 14 is a side view of a rack-type device provided in an embodiment of this application, Figure 15 is a front view of another rack-type device provided in an embodiment of this application, and Figure 16 is a side view of the rack-type device shown in Figure 15. As shown in Figures 14 to 16, the rack-type device includes the rack 100 mentioned above and at least one functional unit 200 fixed in the rack 100. The cooling channel of the functional unit 200 is connected to the second circulation pipe b. This rack-mounted equipment includes the aforementioned rack, and therefore achieves at least the technical effects achievable by the rack. Specifically, on the one hand, it eliminates the need for additional cooling or heat dissipation devices, reducing on-site assembly and piping connection workload. On the other hand, at least one of the three components of the cooling distribution device 2—control circuit 21, heat exchanger 221, and delivery pump 23—is fixed to the back door 13 of the rack 1. This fully utilizes the internal space of the rack 1, reducing the external space occupied by the cooling distribution device 2, and resulting in a smaller and more versatile rack 100. This avoids the problem of centralized CDUs requiring a large dedicated space and being inflexible in deployment, as is common with centralized cooling distribution devices. Furthermore, the back door 13 allows opening and closing the second open end 102 of the rack body 11, enabling maintenance of the functional units 200 and components of the cooling distribution device 2 from the second open end 102. This makes maintenance of both the functional units 200 and the cooling distribution device 2 more convenient.

[0068] In practice, at least some of the functional interfaces of the functional unit 200 face the second open end of the cabinet body, so that components can be inserted and removed through the second open end, which facilitates the use and maintenance of the functional unit 200.

[0069] As shown in Figure 14, the condenser 222 includes a manifold 2223, which has multiple media outlets. Exemplarily, the media inlet of the manifold 2223 is connected to the media outlet of the delivery pump 23, the media inlet of the cooling channel of each functional unit 200 is connected to one media outlet of the manifold 2223, and the media inlets of the cooling channels of different functional units are connected to different media outlets of the manifold 2223.

[0070] The rack-mounted devices mentioned in this application include, but are not limited to, rack-mounted servers and rack-mounted switches. The rack-mounted servers can be deployed in a data center and may include one or more functional units 200. When a rack-mounted server includes one functional unit 200, that functional unit 200 is a server. When a rack-mounted server includes multiple functional units 200, one of these functional units 200 may be a switch 900, and the remaining functional units 200 may be servers. For example, the number of servers on the top and bottom sides of the switch 900 may be the same to facilitate connection between each server and the switch 900. When the rack-mounted device is a rack-mounted switch, the functional unit 200 is a switch, and the rack-mounted switch may include one or more functional units 200. Of course, the functional unit 200 may also be a power supply unit 800. For example, the power supply unit 800 includes a power conversion structure for converting the voltage and current of an external power source into the voltage and current required by the functional unit 200. Furthermore, the power supply unit may also include a battery connected to the power conversion structure. It is worth noting that the above examples are not exhaustive, and functional unit 200 can also be other cases.

[0071] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A server rack, characterized in that, Includes a cabinet (1) and a cold air distribution device (2); The cabinet (1) includes a cabinet body (11) and a back door (13). The cabinet body (11) has a first open end (101) and a second open end (102) arranged opposite to each other. The first open end (101) is used for taking out and putting in the functional unit (200). The back door (13) is arranged at the second open end (102) and can open and close the second open end (102). The cold energy distribution device (2) includes a control circuit (21), a heat exchanger (221), and a delivery pump (23). The control circuit (21) is electrically connected to the delivery pump (23) and is used to control the flow rate of the delivery pump (23). The cold energy distribution device (2) further includes a first circulation pipe and a second circulation pipe, the first circulation pipe being used to connect to a cold source, and the second circulation pipe being used to connect to the cooling channel of the functional unit (200); The heat exchanger (221) has a first flow channel (2211) and a second flow channel (2212) that are isolated from each other. The first flow channel (2211) is connected to the first circulation pipeline, and the second flow channel (2212) and the delivery pump (23) are both connected to the second circulation pipeline. Among them, at least one of the control circuit (21), the heat exchanger (221) and the delivery pump (23) is fixed to the back door (13).

2. The cabinet as described in claim 1, characterized in that, The cooling capacity distribution device (2) includes a condenser (222), which includes a first condensation channel (2221). The first condensation channel (2221) is connected to the second circulation pipeline, and the delivery pump (23) is located upstream of the functional unit (200). The first condensation channel (2221) is located upstream of the second flow channel (2212) and downstream of the cooling flow channel of the functional unit (200). The medium in the second circulation pipeline is a gas-liquid two-phase medium, which is used to vaporize in the cooling channel of the functional unit (200) and liquefy in the first condensation channel (2221).

3. The cabinet as described in claim 2, characterized in that, The condenser (222) includes a second condensing channel (2222) that is isolated from the first condensing channel (2221), and the second condensing channel (2222) is used to connect to a cold source.

4. The cabinet as described in claim 2 or 3, characterized in that, The condenser (222) is disposed inside the cabinet, and the orthographic projection of the condenser (222) at the second open end (102) is offset from the orthographic projection of at least a portion of the functional interfaces of the functional unit (200) at the second open end (102).

5. The cabinet as described in any one of claims 2 to 4, characterized in that, The cabinet body (11) includes a first side wall (112) and a second side wall (113), both of which are connected between the first open end (101) and the second open end (102); the condenser (222) is located at the second open end (102) and abuts against the first side wall (112) or the second side wall (113).

6. The cabinet as described in any one of claims 2 to 5, characterized in that, The cabinet body (11) includes a base plate (111); The cooling capacity distribution device (2) includes a first filter (24), which is connected to the first circulation pipeline; The first filter (24) is fixed to the back door (13), or the first filter (24) is fixed to the inner surface of the bottom plate (111); the first filter (24) is located upstream of the first flow channel (2211).

7. The cabinet as described in claim 6, characterized in that, The cabinet body (11) includes a base plate (111); The cooling capacity distribution device (2) includes a second filter (25), which is connected to the second circulation pipeline. The second filter (25) is fixed to the back door (13), or the second filter (25) is fixed to the inner surface of the base plate (111). The second filter (25) is located downstream of the delivery pump (23) and upstream of the cooling channel of the functional unit (200).

8. The cabinet as described in claim 6 or 7, characterized in that, The cabinet body (11) includes a base plate (111); The cooling capacity distribution device (2) includes a fluid purification structure (26), which is fixed to the back door (13) or the fluid purification structure (26) is fixed to the inner surface of the base plate (111). The medium inlet of the fluid purification structure (26) is connected to the pipeline between the medium outlet of the delivery pump (23) and the medium inlet of the cooling channel of the functional unit (200). The medium outlet of the fluid purification structure (26) is connected to the first condensation channel (2221) of the condenser (222).

9. The cabinet as described in any one of claims 2 to 8, characterized in that, The cooling capacity distribution device (2) includes a liquid storage tank (27), and the condenser (222), the liquid storage tank (27) and the heat exchanger (221) are arranged in sequence along the direction of gravity; The liquid storage tank (27) is fixed to the back door (13), or the liquid storage tank (27) is fixed to the inner surface of the base plate (111); the liquid storage tank (27) is connected to the second circulation pipeline, and the liquid storage tank (27) is located downstream of the first condensation channel (2221) and upstream of the second flow channel (2212).

10. The cabinet as described in any one of claims 2 to 8, characterized in that, The cold energy distribution device (2) includes a liquid storage tank (27), the heat exchanger (221) is located in the liquid storage tank (27) and along the direction of gravity, and the condenser (222) is located above the liquid storage tank (27); The liquid storage tank (27) is fixed to the back door (13), or the liquid storage tank (27) is fixed to the inner surface of the base plate (111); The liquid storage tank (27) is connected to the second circulation pipeline, and the liquid storage tank (27) is located downstream of the first condensation channel (2221) and upstream of the delivery pump (23).

11. The cabinet as described in claim 9 or 10, characterized in that, The cold energy distribution device (2) includes a replenishment pump (28), the medium outlet of which is connected to the liquid storage tank (27), and the replenishment pump (28) is used to replenish the medium in the liquid storage tank (27).

12. The cabinet as described in any one of claims 1 to 11, characterized in that, The cooling capacity distribution device is integrated into the cabinet.

13. A rack-mounted device, characterized in that, It includes a cabinet (100) as described in any one of claims 1 to 12 and at least one functional unit (200) fixed within the cabinet (100), wherein the cooling channel of the functional unit (200) is connected to the second circulation pipeline.

14. The rack-mounted equipment as described in claim 13, characterized in that, At least a portion of the functional interfaces of the functional unit (200) face the second open end (102).

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