Power distribution system and power distribution cabinet

Abstract

The present application relates to the technical field of data centers, and provides a power distribution system and a power distribution cabinet. The power distribution system comprises a power distribution module, a maintenance output module, and an uninterruptible power supply. The power distribution module comprises a power distribution main interface and a power distribution output interface. The power distribution output interface of the power distribution module is electrically connected to the maintenance output module, and the maintenance output module is connected to the uninterruptible power supply and a load module. The power distribution output interface outputs electrical energy to the maintenance output module. When the maintenance output module is in the normal power supply mode, the electrical energy transmitted by the power distribution module is transmitted to the uninterruptible power supply, then the electrical energy is output to the maintenance output module by means of the uninterruptible power supply, and the maintenance output module finally transmits the electrical energy to the load module. When the maintenance output module is in the maintenance mode, the electrical energy output by the power distribution module is directly transmitted to the load module. The power distribution system provided in the present application has a low failure rate and is easy to maintain.

Description

A power distribution system and a power distribution cabinet

[0001] Priority Statement

[0002] This application claims priority to Chinese Patent Application No. 202422624550.2 entitled "A power distribution system and a power distribution cabinet", filed on October 29, 2024 with the China National Intellectual Property Administration, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of data center technology, and in particular to power distribution systems and distribution cabinets. Background Technology

[0004] With the continuous development of modular data centers, modular data center components are also constantly evolving and iterating. Among them, the power distribution system of data centers is also developing in tandem. Power distribution cabinets are becoming more integrated, more intelligent, and have more and more complex functions, thus gradually improving their competitiveness and better adapting to the needs of the rapid development of data centers.

[0005] In related technologies, the power distribution modules of the power distribution cabinet have a large number of integrated power distribution structures, complex design, and a large number of equipment connection terminals. The probability of internal power distribution failure is high. Moreover, after a failure occurs in the module, the entire power distribution module needs to be disassembled for fault diagnosis, troubleshooting and analysis, which is complex and costly to maintain.

[0006] Utility Model Content

[0007] This application provides a power distribution system and a power distribution cabinet, which can specifically reduce the failure rate of the power distribution system and make the power distribution system easy to maintain.

[0008] The first aspect of this application provides a power distribution system, including a power distribution module, a maintenance output module, and an uninterruptible power supply (UPS). The power distribution module includes a main power distribution interface and a power distribution output interface. The power distribution output interface of the power distribution module is electrically connected to the maintenance output module, the maintenance output module is electrically connected to the UPS, and the maintenance output module is also electrically connected to a load module. The main power distribution interface is connected to an external power supply device, and the power distribution output interface outputs electrical energy to the maintenance output module. The maintenance output module has a normal power supply mode and a maintenance mode. When the maintenance output module is in normal power supply mode, it transfers the electrical energy supplied by the power distribution module to the UPS, which then outputs it back to the maintenance output module, which ultimately transfers the electrical energy to the load module. When the maintenance output module is in maintenance mode, it directly transfers the electrical energy output by the power distribution module to the load module.

[0009] The power distribution system provided in this application decouples the power distribution system into three modules: a power distribution module, a maintenance output module, and an uninterruptible power supply (UPS). These three modules are independently configured and work together to achieve the power distribution function to the load. Compared to related technologies that integrate all power distribution functions into a single module and integrate all wiring terminals at the back end of the power distribution unit, this application decouples the power distribution system into three independent modules. The wiring of the power distribution system becomes a connection between modules, which reduces the wiring complexity of the entire power distribution system. The modular design of the power distribution system also makes the configuration more flexible and reduces the configuration cost.

[0010] Optionally, a first circuit and a second circuit are connected between the maintenance output module and the load module. The first circuit and the second circuit are set in parallel. The uninterruptible power supply is connected to the first circuit. The maintenance output module is used to control the on / off state of the first circuit and the second circuit.

[0011] Optionally, the maintenance output module also includes a control switch connected between the first circuit and the second circuit, which is used to control the on / off state of the first circuit and the second circuit.

[0012] Optionally, the power distribution system also includes an expansion module with an expansion output interface for connecting loads. The expansion module and the power distribution module are connected via an expansion circuit, allowing the power distribution module to distribute power to the expansion module via the expansion circuit.

[0013] Optionally, the expansion circuit is connected to the maintenance output module. When the maintenance output module is in normal power supply mode, it transfers the power supplied by the power distribution module to the uninterruptible power supply, which then transfers it to the maintenance output module. Finally, the maintenance output module transfers the power to the expansion circuit.

[0014] When the maintenance output module is in maintenance mode, it directly transmits the electrical energy output by the power distribution module to the expansion circuit.

[0015] Optionally, it also includes a power management module, which is connected to the expansion module or maintenance output module. The power management module has multiple power output interfaces, which are connected to the load module. The expansion module or maintenance output module supplies power to the power management module.

[0016] Optionally, the power management module is provided with a first branch and a second branch, each having at least one power output interface. The first and second branches are independently controlled and connected to different load modules respectively.

[0017] Optionally, the power distribution system includes two maintenance output modules and two uninterruptible power supplies (UPS). Each maintenance output module is connected to a corresponding UPS, and the power supply management module is connected to the two maintenance output modules.

[0018] Optionally, the power management module is also connected to a transfer switch, which has two transfer input interfaces, each of which is connected to one of the two maintenance output modules.

[0019] Optionally, the power distribution module also includes at least one DC power supply module, which is connected to the load and also connected to the maintenance output module.

[0020] Optionally, the power distribution module may also include a lightning protection module.

[0021] Optionally, the power distribution module and the maintenance output module, the maintenance output module and the uninterruptible power supply, and the maintenance output module and the load module are all connected by plug-in terminals.

[0022] A second aspect of this application also provides a power distribution cabinet, including a cabinet body and the aforementioned power distribution system, wherein the power distribution system is disposed in the cabinet body.

[0023] Optionally, the power distribution module, maintenance output module, and uninterruptible power supply can all be detachably connected to the cabinet. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a schematic diagram of a power distribution system proposed in an embodiment of this application;

[0026] Figure 2 is another schematic diagram of the power distribution system proposed in the embodiment of this application;

[0027] Figure 3 is a three-dimensional structural schematic diagram of a power distribution cabinet proposed in an embodiment of this application;

[0028] Figure 4 is a rear view of the power distribution cabinet proposed in the embodiment of this application.

[0029] Reference numerals: 10. Power distribution system; 110. Power distribution module; 111. Main power distribution interface; 112. Power distribution output interface; 113. Power distribution input interface; 114. DC power supply module; 115. Lightning protection module; 1151. Lightning protection switch; 1152. Lightning arrester; 116. Equipment connection terminal; 117. Digital interface; 118. Meter interface; 120. Maintenance output module; 121. Control switch; 122. First input interface; 123. First output interface; 124. Second input interface; 125. Second output interface; 126. Third output interface; 130. Uninterruptible power supply; 131. Power inlet; 132. Power outlet; 140. Expansion module; 141. Expansion input interface; 142. Expansion output interface; 150. Power supply management module; 151. Power supply input interface; 152. Power supply output interface; 160. Changeover switch; 161. Changeover input interface; 162. Changeover output interface; 170. First circuit; 180. Second circuit; 190. Expansion circuit; 20. Cabinet; 210. Cabinet door; 30. Switch; 40. Monitoring host; 50. Fan module. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] With the continuous development of modular data centers, modular data center components are also constantly evolving and iterating. Among these, the power distribution system of data centers is developing in parallel, with power distribution cabinets becoming more integrated, intelligent, and functionally more complex, thus gradually increasing their competitiveness and better adapting to the rapidly evolving needs of data centers. Modular power distribution cabinets include micro-module-level power distribution cabinets or row-level integrated power distribution cabinets.

[0032] Currently, the modularity and high integration of power distribution cabinets in these modular data centers are mainly reflected in the fact that all power supply and distribution designs are centrally designed and installed in the U-position of the cabinet (U-position is the most commonly used basic unit in the data center industry to define the physical space of the equipment stored in the cabinet, and it is also the basic unit to define the physical size of equipment such as servers, storage, and switches. 1U is 1.75 inches high and 19 inches wide). All power supply and distribution connections of the equipment are realized on the power distribution module of the power distribution cabinet, resulting in higher integration and more comprehensive and complex functions.

[0033] In related power distribution cabinet technologies, the power distribution section of the power distribution cabinet is made into a cabinet-type integrated power distribution unit. This power distribution unit is integrated based on the cabinet frame and integrates functions such as mains input, input and output power distribution of uninterruptible power supply (UPS), maintenance bypass of UPS, parallel or dual-circuit redundancy of UPS, power distribution of cabinet load-level power distribution unit and system DC power distribution. This allows the power distribution module to integrate all wiring terminals at the back end, and all equipment must be connected through OT terminals to achieve the final power distribution equipment connection.

[0034] Thus, while modular integration of power distribution in related technologies can adapt to more customer choices in various scenarios, the internal design of the power distribution module is complex, the number of equipment connection terminals is large, the probability of single-point failure within the power distribution is high, the number of fault risk points in the power distribution system increases, and after a fault occurs in the module, the entire power distribution unit needs to be disassembled for fault diagnosis, troubleshooting and analysis, which is complex and costly to maintain.

[0035] Based on this, the present application provides a power distribution system that is decoupled into a combination of multiple modules, which can reduce the complexity and integration of the power distribution system, and help reduce the number of connection terminals of the power distribution system, thereby reducing the probability of single point of failure. Moreover, when a single module fails, only the faulty module needs to be removed and repaired, without having to disassemble the entire power distribution system for troubleshooting and analysis, thus reducing maintenance costs.

[0036] The embodiments of the power distribution system 10 provided in this application will be described in detail below with reference to the accompanying drawings.

[0037] Figure 1 is a schematic diagram of a power distribution system proposed in an embodiment of this application.

[0038] As shown in Figure 1, this embodiment of the application provides a power distribution system 10, which includes a power distribution module 110, a maintenance output module 120, and an uninterruptible power supply (UPS) 130. The power distribution module 110, maintenance output module 120, UPS 130, and load module are all independent modular structures. The power distribution module 110 includes a mains power interface 111 and a power distribution output interface 112. The mains power interface 111 can be connected to an external user power source, typically an AC mains power source. The AC mains power enters the power distribution module 110 via the mains power interface 111 and is then output from the power distribution output interface 112.

[0039] In this application, the power distribution output interface 112 of the power distribution module 110 is electrically connected to the maintenance output module 120, the maintenance output module 120 is electrically connected to the uninterruptible power supply 130, and the maintenance output module 120 is also electrically connected to the load module.

[0040] The user power supply can input electrical energy to the power distribution module 110 through the main power distribution interface 111. The power distribution module 110 has an internal power distribution circuit. The external electrical energy input from the main power distribution interface 111 can be transmitted in the power distribution circuit. The power distribution output interface 112 is connected to the power distribution circuit inside the power distribution module 110. The power distribution output interface 112 can output electrical energy to the maintenance output module 120.

[0041] It should be noted that the maintenance output module 120 has a normal power supply mode and a maintenance mode. When the maintenance output module 120 is in the normal power supply mode, the maintenance output module 120 can transfer the electrical energy delivered by the power distribution module 110 to the uninterruptible power supply 130, and then output it to the maintenance output module 120 through the uninterruptible power supply 130. Finally, the maintenance output module 120 transfers the electrical energy to the load module.

[0042] When the maintenance output module 120 is in maintenance mode, it can directly transfer the electrical energy output by the power distribution module 110 to the load module.

[0043] In this way, by decoupling the power distribution system 10 into a power distribution module 110, a maintenance output module 120, and an uninterruptible power supply 130, with each module independently configured, the power distribution function to the load is achieved through the cooperation of the three modules. Compared to related technologies that integrate all power distribution functions into one module and integrate all wiring terminals at the back end of the power distribution unit, this application decouples the power distribution system 10 into three independent modules. The wiring of the power distribution system 10 becomes a connection between modules, which reduces the wiring complexity of the entire power distribution system 10 and thus reduces the failure rate of the power distribution system.

[0044] Furthermore, in related technologies, the modules used for power distribution are all concentrated in a single power distribution unit. When a fault occurs within this unit, repair is inconvenient. For example, if the uninterruptible power supply 130 fails, the entire power distribution unit needs to be disassembled. However, the power distribution unit has many integrated modules and wiring, and the limited space for repair increases the difficulty of maintenance. In contrast, when a single module of the power distribution system 10 of this application fails, only the faulty module needs to be inspected, analyzed, and repaired. This eliminates the need to disassemble the entire power distribution unit for repair, as is the case in related technologies, making maintenance more convenient, increasing efficiency, and reducing costs.

[0045] This application sets up the uninterruptible power supply 130 and the maintenance output module 120 independently, so that the uninterruptible power supply 130 and the maintenance output module 120 can be used together, and the number of uninterruptible power supply 130 and maintenance output module 120 can be flexibly configured according to the actual situation, which helps to reduce the user's configuration cost.

[0046] Furthermore, this application sets up a maintenance output module 120, and the load module is connected to the maintenance output module 120. The load module has two working modes. When the uninterruptible power supply 130 fails, the maintenance output module 120 can be switched to maintenance mode. At this time, the power distribution module 110 directly supplies power to the load. In this way, when the uninterruptible power supply 130 fails, it is possible to repair the uninterruptible power supply 130 while also distributing power to the load.

[0047] For example, the power distribution module 110 is equipped with a meter, a fuse, and a monitoring sensor. The meter, fuse, and monitoring sensor are located on the main input line of the power distribution module 110. The main input line of the power distribution module 110 is connected to the main power distribution interface 111 for transmitting mains power. The meter and monitoring sensor are used to collect and record mains power parameters.

[0048] For example, in order to ensure the safety of the power distribution module 110, the power distribution module 110 also includes a surge protection module 115. The surge protection module 115 includes a surge protection switch 1151 and a surge protector 1152. The surge protection module 115 is connected to the power distribution circuit inside the power distribution module 110 to provide the surge protector 1152 with the power required for its operation.

[0049] In addition, the power distribution module 110 can also be equipped with an air switch. The air switch plays the role of connecting, disconnecting and carrying the rated operating current in the power distribution module 110. When the circuit or load is overloaded, short-circuited, undervoltage or other abnormalities occur, it can quickly cut off the circuit and provide reliable protection, which is beneficial to the electrical safety of the power distribution module 110.

[0050] For example, the uninterruptible power supply 130 (UPS) has at least an inverter and an energy storage device (such as a battery). Electrical energy is transferred to the uninterruptible power supply 130 via the maintenance output module 120 and then to the load module, which can ensure the continuity of power to the load module. In case of a mains power supply failure, the energy storage device in the uninterruptible power supply 130 can continuously supply power to the load module.

[0051] For example, both the maintenance output module 120 and the uninterruptible power supply 130 are provided with multiple input interfaces and output interfaces. The maintenance output module 120 can be connected to the power distribution module 110, the load module and the uninterruptible power supply 130 through the input and output interfaces.

[0052] For example, the maintenance output module 120 has multiple interfaces for connecting load modules, each of which can connect to a load.

[0053] In some possible implementations, please refer to Figure 1. The external power supply of the power distribution module 110 can be transmitted to the load through the maintenance output module 120. The maintenance output module 120 has two operating modes (normal power supply mode and maintenance mode). The maintenance output module 120 can distribute power to the load module in both modes. The difference is that in the normal power supply mode, the maintenance output module 120 and the uninterruptible power supply 130 cooperate to distribute power to ensure the stability of the power distribution to the load. In the maintenance mode, the maintenance output module 120 directly transmits the power supplied by the power distribution module 110 to the load module.

[0054] In order to realize the two working modes of the maintenance output module 120, a first circuit 170 and a second circuit 180 are connected between the maintenance output module 120 and the load module, and electrical energy can be transferred from the first circuit 170 or the second circuit 180 to the load module.

[0055] It should be noted that both the first circuit 170 and the second circuit 180 are connected to the power distribution module 110. The power distribution module 110 can transfer electrical energy to the first circuit 170 and the second circuit 180. One of the first circuit 170 and the second circuit 180 can realize the normal power supply mode of the maintenance output module 120, and the other can realize the maintenance mode of the maintenance output module 120. In this embodiment, for example, the uninterruptible power supply 130 can be connected to the first circuit 170 so that the first circuit 170 can realize the normal power supply mode of the maintenance output module 120.

[0056] For example, to ensure that the first circuit 170 and the second circuit 180 do not affect each other, the first circuit 170 and the second circuit 180 are connected in parallel, so that a failure in one of the two circuits will not affect the normal operation of the other circuit. The operation and maintenance output module 120 can control the on / off state of the first circuit 170 and the second circuit 180, so as to realize the switching of the maintenance output module 120 between two operating modes.

[0057] For example, the first circuit 170 and the second circuit 180 can be connected to the power distribution module 110 respectively. For example, the power distribution module 110 is provided with multiple power distribution output interfaces 112, and the first circuit 170 and the second circuit 180 are respectively connected to two different power distribution output interfaces 112.

[0058] Alternatively, to reduce the complexity of wiring, the first circuit 170 and the second circuit 180 can be connected to the same power distribution output interface 112 of the power distribution module 110. In this case, a wire is led out from the power distribution output interface 112, and both the first circuit 170 and the second circuit 180 are connected to this wire.

[0059] When controlling the on / off state of the first circuit 170 and the second circuit 180, switch structures can be set on the first circuit 170 and the second circuit 180 respectively, and the on / off state of their respective circuits can be controlled by the switch structures on the first circuit 170 and the second circuit 180.

[0060] In some possible implementations, to simplify the structure, the on / off state of the first circuit 170 and the second circuit 180 can also be controlled by a switch. For example, the maintenance output module 120 also includes a control switch 121, which can be a single-pole double-throw switch, etc. The control switch 121 is connected between the first circuit 170 and the second circuit 180 and can control the on / off state of the first circuit 170 and the second circuit 180.

[0061] For example, when the first circuit 170 and the second circuit 180 are connected to the same power distribution output interface 112 through the same wire, the control switch 121 can be set at the position where the first circuit 170 and the second circuit 180 are connected to the same wire. One of the power terminals of the control switch 121 is connected to the power distribution output interface 112 through the wire. The control switch 121 also has at least two power transmission terminals, which are respectively connected to the first circuit 170 and the second circuit 180. The control switch 121 can control the power terminal and one of the power transmission terminals to be energized, so as to control the first circuit 170 or the second circuit 180 to be energized with the power distribution output interface 112.

[0062] In some possible implementations, the multiple input interfaces on the maintenance output module 120 may include, for example, a first input interface 122 and a second input interface 124, and the output interfaces on the maintenance output module 120 may include, for example, a first output interface 123 and a second output interface 125, and the uninterruptible power supply 130 includes a power inlet 131 and a power outlet 132.

[0063] The first input interface 122 of the maintenance output module 120 can be electrically connected to the power distribution output interface 112 of the power distribution module 110. The first input interface 122 can also be electrically connected to the first output interface 123 inside the maintenance output module 120. The first output interface 123 is connected to the power inlet 131 of the uninterruptible power supply 130 via electrical connectors such as wires. The power inlet 131 of the uninterruptible power supply 130 has an internal circuit for transferring electrical energy between itself and the power outlet 132. It should be noted that the circuit connecting the power distribution output interface 112, the first input interface 122, the first output interface 123, the power inlet 131, and the power outlet 132 can form the first circuit 170. At this point, the load can be directly connected to the power outlet 132 of the uninterruptible power supply 130 to provide the load with a continuous supply of electrical energy.

[0064] In some possible implementations, the power outlet 132 of the uninterruptible power supply 130 can also be electrically connected to the second input interface 124 of the maintenance output module 120. The second input interface 124 is electrically connected to the second output interface 125 inside the maintenance output module 120. The load can be electrically connected to the second output interface 125. At this time, the circuit between the power distribution output interface 112, the first input interface 122, the first output interface 123, the power inlet 131, the power outlet 132, the second input interface 124, and the second output interface 125 forms a first circuit 170 to provide power to the load.

[0065] It should be noted that the maintenance output module 120 typically has multiple second output interfaces 125 to connect multiple loads, enabling simultaneous power supply to multiple loads. The second input interface 124 and the multiple second output interfaces 125 are connected by wires. The wires leading out from the second input interface 124 can be divided into multiple branches, and each branch can be connected to the corresponding second output interface 125.

[0066] For example, the maintenance output module 120 is provided with multiple first input interfaces 122, the first circuit 170 and the second circuit 180 can be connected to different first input interfaces 122 respectively, and a power distribution output interface 112 can lead out a wire to be connected to two first input interfaces 122 respectively.

[0067] For example, the maintenance output module 120 is provided with a first input interface 122, and the power distribution output interface 112 is connected to the first input interface 122. One end of the first circuit 170 and the second circuit 180 can intersect at a point inside the maintenance output module 120, and this intersection point is connected to the first input interface 122. The other end of the first circuit 170 and the second circuit 180 also intersect at a point inside the maintenance output module 120, and this intersection point is connected to the second output interface 125 via a wire.

[0068] The maintenance output module 120 has a limited number of second output interfaces 125 for connecting loads. When the number of loads requiring power distribution is too large, the second output interfaces 125 on the maintenance output module 120 cannot simultaneously distribute power to each load. Therefore, in some possible embodiments, a power distribution structure capable of distributing power to loads can be added to accommodate simultaneous power distribution to multiple loads. For example, the power distribution system 10 may also include an expansion module 140, which has multiple expansion output interfaces 142 for connecting loads. Each expansion output interface 142 can connect to a load to distribute power to the load. The expansion module 140 may also include an expansion input interface 141 for receiving electrical energy. The expansion input interface 141 and the expansion output interface 142 are electrically connected internally within the expansion module 140, allowing electrical energy input via the expansion input interface 141 to be output via the expansion output interface 142.

[0069] For example, the expansion module 140 can be electrically connected to the second output interface 125 of the maintenance output module 120 through the expansion output interface 142, so that the maintenance output module 120 can supply power to the expansion module 140 in both normal power supply mode and maintenance mode.

[0070] In some possible implementations, as shown in Figure 1, the power distribution module 110 can distribute power to the DC devices of the system. For example, the DC devices on the power distribution module 110 include power indicator lights, lighting, ambient lights, smart door locks, or micro switches. In order to distribute power to these DC devices, a DC power supply needs to be output. For this purpose, the power distribution module 110 also includes at least one DC power supply module 114. The power output of the DC power supply module 114 can be connected to the DC devices to supply power to them.

[0071] In order to provide stable and continuous power to the DC power module 114, the DC power module 114 is also connected to the maintenance output module 120. Specifically, the maintenance output module 120 is also provided with a third output interface 126. The power distribution module 110 is provided with a power distribution input interface 113. The third output interface 126 of the maintenance output module 120 is connected to the power distribution input interface 113. The power distribution input interface 113 is internally connected to the DC power module 114 in the power distribution module 110. The third output interface 126 is connected to the first circuit 170, so that the power after the uninterruptible power supply 130 can be transmitted to the third output interface 126 to transmit stable power to the DC power module 114. The DC power module 114 is a DC voltage regulator structure. Its DC conversion circuit can convert the AC power transmitted by the power distribution input interface 113 into DC power to power DC devices.

[0072] It should be noted that in order to still supply power to the DC power module 114 when the uninterruptible power supply 130 fails, the third output interface 126 can also be connected to the second circuit 180. When the uninterruptible power supply 130 fails, power can be directly supplied to the third output interface 126 through the second circuit 180.

[0073] For example, the ends of the first circuit 170 and the second circuit 180 used to connect the second output interface 125 can be connected to a single point, and the third output interface 126 can be connected to the connection point between the first circuit 170 and the second circuit 180 via a wire.

[0074] In some possible implementations, in order to avoid occupying the second output interface 125 on the maintenance output module 120 for direct connection to the load, the expansion module 140 can also be connected to the power distribution module 110 via an expansion circuit 190, so that the maintenance output module 120 can supply power to the expansion module 140 at the same time when it supplies power to the DC power module 114 of the power distribution module 110.

[0075] For example, the power distribution module 110 is provided with multiple power distribution output interfaces 112. One of the power distribution output interfaces 112 is connected to the expansion input interface 141 of the expansion module 140 through the expansion circuit 190. The power distribution output interface 112 can also be connected to the connection circuit between the power distribution input interface 113 of the power distribution module 110 and the DC power module 114. In this way, when the power energy transmitted from the maintenance output module 120 to the power distribution input interface 113 is transmitted to the DC power module 114, it can be diverted to the expansion module 140 to distribute power to the load connected to the expansion module 140.

[0076] When the maintenance output module 120 is in normal power supply mode, it can transfer the power supplied by the power distribution module 110 to the uninterruptible power supply 130, and then transfer it to the maintenance output module 120 via the uninterruptible power supply 130. Finally, the maintenance output module 120 transfers the power to the expansion circuit 190, and finally distributes power to the load on the expansion module 140.

[0077] When the maintenance output module 120 is in maintenance mode, it can directly transfer the electrical energy output by the power distribution module 110 to the expansion circuit 190.

[0078] In some possible implementations, a circuit breaker is provided between the main power distribution interface 111 and the power distribution output interface 112 to control the opening and closing of the circuit between the main power distribution interface 111 and the power distribution output interface 112. Circuit breakers are also provided in the circuits of the first circuit 170 and the second circuit 180 that distribute power to the second output interface 125. When there are multiple second output interfaces 125, each second output interface 125 is provided with a circuit breaker.

[0079] Figure 3 is a three-dimensional structural schematic diagram of the power distribution cabinet proposed in the embodiment of this application, and Figure 4 is a rear view of the power distribution cabinet proposed in the embodiment of this application.

[0080] As shown in Figures 1, 3, and 4, in some possible implementations, to enable the power distribution module 110 to distribute power to DC devices, the power distribution module 110 is also provided with device connection terminals 116, through which DC devices can be connected to the power distribution module 110. Furthermore, the power distribution module 110 may also be provided with a digital interface 117 for connecting surge protectors and other electrical devices, as well as a meter interface 118. The power distribution output interface 112, power distribution input interface 113, device connection terminals 116, digital interface 117, and meter interface 118 form a cascaded interface integrated on the power distribution module 110, enabling the cascading of devices within the cabinet.

[0081] For example, the interfaces of each module and the interfaces of the load and the module are connected by plug-in terminals. The plug-in method is used to connect two modules or to connect a module and the load, which facilitates the installation of each module of the power distribution system 10 on site, and also facilitates the connection of each power distribution device in the cabinet to the power distribution system 10, thereby improving the efficiency of on-site installation.

[0082] In some possible implementations, the power distribution cabinet may also include other functional modules, such as a switch 30, a monitoring module, and an emergency fan for cooling. To power and control the emergency fan module 50, switch 30, and monitoring module, the power distribution system 10 also includes a power management module 150. The power management module 150 has a power input interface 151 and a power output interface 152. The power input interface 151 is used to connect external power to the power management module 150, and the power output interface 152 can connect to the switch 30, fan module 50, and monitoring module to transmit power to the fan module 50, etc.

[0083] For example, the power input interface 151 of the power management module 150 can be connected to the expansion module 140 or the maintenance output module 120. When the power management module 150 is connected to the expansion module 140, the power input interface 151 is connected to the expansion output interface 142 of the expansion module 140. When the power management module 150 is connected to the maintenance output module 120, the power input interface 151 is connected to the second output interface 125 of the maintenance output module 120. In this way, the power management module 150 can be provided with continuous and stable power through the maintenance output module 120 or the expansion module 140.

[0084] For example, the power management module 150 has multiple power output interfaces 152, which can be connected to the fan module 50, the switch 30, and the monitoring module, respectively.

[0085] In some possible implementations, the fan module 50 may have multiple fan structures, each of which can be connected to a power output interface 152 to control a single fan structure so that the corresponding number of fans can be turned on or off as needed.

[0086] Since the fan module 50 is usually off by default, it is turned on by the power management module 150 when it is needed. Therefore, the power management module 150 can be divided into two control parts: one control part is used to control the fan module 50, and the other control part is used to control the switch 30 and monitoring modules, etc.

[0087] For example, the power management module 150 has a first branch and a second branch. Both the first branch and the second branch have at least one power output interface 152. The electrical energy input through the power input interface 151 can be transmitted through the first branch and the second branch. The first branch and the second branch are independently controlled. The first branch and the second branch are used to connect different load modules.

[0088] For example, the fan module 50 is connected to the first branch, and the monitoring and switch modules 30 are connected to the second branch. The first branch can provide power to the fan module 50 and can provide on / off management functions for the fan module 50. For example, a circuit board is provided in the power management module 150, and the circuit board is pre-set with a control program, which can control the on / off state of the fan module 50.

[0089] The switch 30, monitoring module, etc. are connected to the second branch, which can be used to power the switch 30 and monitoring module.

[0090] In related technologies, modules such as the fan module 50, monitoring module, and switch 30 all require a separate rack-level power distribution unit for power supply, leading to increased system configuration and costs. This application addresses this by setting up a power management module 150 with independent first and second branches. These two branches can be controlled independently: the first branch controls and manages the fan module 50, and the second branch controls and manages the switch 30 and monitoring module, etc. This allows a single module to perform the functions of multiple systems, reducing the number of power distribution devices and saving costs.

[0091] If the power distribution system 10 is a dual-circuit power distribution architecture, the solutions in the relevant technologies fail to achieve independent dual-circuit redundancy. This will result in the monitoring module and switch 30 and other modules in the system being unable to function properly after one of the uninterruptible power supplies 130 fails and is powered off. They can only be used normally after the fault is repaired. Therefore, the design of the relevant technologies is incomplete.

[0092] Figure 2 is another schematic diagram of the power distribution system proposed in the embodiments of this application.

[0093] Referring to Figures 1 and 2, in some possible embodiments, the maintenance output module 120 and the uninterruptible power supply 130 of this application are typically used together, with one maintenance output module 120 paired with one uninterruptible power supply 130. In this embodiment, the power distribution system 10 includes two sets of maintenance output modules 120 and uninterruptible power supplies 130, for example, including two maintenance output modules 120 and two uninterruptible power supplies 130.

[0094] Please refer to Figure 2. Each maintenance output module 120 is connected to a corresponding uninterruptible power supply 130. The setup between each set of maintenance output modules 120, uninterruptible power supply 130, and power distribution module 110 is consistent, for example, all include a first circuit 170 and a second circuit 180, and the connection methods of the first circuit 170 and the second circuit 180 are also consistent. The power input interface 151 of the power management module 150 is connected to the second output interface 125 of the two maintenance output modules 120 respectively.

[0095] Alternatively, the power distribution module 110 may be equipped with two expansion modules 140, each of which is connected to a maintenance output module 120. The power input interface 151 of the power management module 150 is connected to the two expansion modules 140 respectively.

[0096] By setting up two sets of maintenance output modules 120 and uninterruptible power supplies 130, the power distribution system 10 is configured with dual-path backup. The power supply management module 150 receives power from the dual uninterruptible power supplies 130. When one uninterruptible power supply 130 fails, it will not affect the power supply of the other uninterruptible power supply 130. In addition, the second circuit 180 between the maintenance output module 120 and the power distribution module 110 can continue to supply power to the power supply management module 150, so that the power supply management module 150 can use power normally.

[0097] In some possible implementations, to facilitate providing dual power supplies to the power management module 150, the power distribution system 10 also includes a transfer switch 160. The transfer switch 160 includes a transfer input interface 161 and a transfer output interface 162. The transfer output interface 162 of the transfer switch 160 is connected to the power input interface 151. The transfer switch 160 has multiple transfer input interfaces 161, wherein two transfer input interfaces 161 can be connected to a maintenance output module 120 respectively, or when the power distribution system 10 is provided with an expansion module 140, the transfer input interface 161 is connected to the expansion output interface 142 of the expansion module 140.

[0098] For example, the changeover switch 160 and the expansion module 140, the changeover switch 160 and the maintenance output module 120, and the changeover switch 160 and the power management module 150 are all connected by plug-in terminals, which facilitates installation and disassembly.

[0099] This application embodiment also provides a power distribution cabinet, as shown in Figures 3 and 4. The power distribution cabinet includes a cabinet body 20 and the aforementioned power distribution system 10, with the power distribution system 10 disposed in the cabinet body 20.

[0100] The cabinet 20 of the power distribution cabinet is provided with a U-shaped space, in which the power distribution module 110, the maintenance output module 120 and the uninterruptible power supply 130 are all located.

[0101] In some possible implementations, the power distribution module 110, maintenance output module 120, uninterruptible power supply 130, expansion module 140, transfer switch 160 and power management module 150 all adopt a rack-mount structure. For example, each of these modules may be provided with a housing, and the functional structure may be integrated in its respective housing. Then, each module is plugged into the U-shaped space of the cabinet 20 by means of plug-in, so that each module can be detachably connected to the cabinet 20.

[0102] For example, a 2U space is reserved at the top of the U-shaped space of the cabinet 20 for installing the switch 30 and monitoring host 40 of the power distribution cabinet. The power distribution module 110, maintenance output module 120 and uninterruptible power supply 130 are installed in the U-shaped space of the cabinet 20 from top to bottom.

[0103] For example, the cabinet 20 has a cabinet door 210 that can be opened and closed. When the cabinet door 210 is closed, it can hide each module inside the cabinet 20. When the cabinet door 210 is open, it can operate the switch structure on each module, etc.

[0104] For example, the power distribution module 110 integrates a smart lighting switch and a manual switch. The smart lighting switch can be turned on and off by manually toggling the manual switch. In addition, the surge protector 1152 can be turned on and off by manually toggling the surge protector switch 1151.

[0105] For example, in order to prevent accidental activation of the switch on the power distribution module 110, a transparent protective cover can be provided on the front panel of the power distribution module 110. In order to prevent electric shock, a rear cover can be provided on the rear end of the power distribution module 110 to hide the wiring positions.

[0106] For example, to reduce the risk of single-point failure in the power distribution system 10 and improve maintenance portability, one or two maintenance output modules 120 of uninterruptible power supplies (UPS) 130 can be configured and installed inside the cabinet. The maintenance output module 120 is used in conjunction with the UPS 130, providing both maintenance bypass mode and inverter output mode for the UPS 130. The maintenance output module 120 also has multiple output interfaces for terminal connection to the cabinet-level power distribution module 110. Users can flexibly configure single-path or dual-path power distribution architectures according to the importance of the system's power distribution, simultaneously configuring different UPS 130s and maintenance output modules 120, reducing costs and facilitating installation, operation, and maintenance.

[0107] For example, the fan module 50 can be disposed on the end face of the cabinet door 210 facing the interior of the cabinet 20, and deployed at the bottom of the cabinet door 210. The cabinet door 210 can be provided with one or more fan modules 50, and each fan module 50 can be provided with multiple sets of fans, all powered by the power management module 150. When the number of high temperature alarms in the system exceeds one, the monitoring module will link with the power management module 150 to control the first branch switch, so that all emergency fan modules 50 in the system will be turned on to provide temporary cooling, so that users or maintenance teams can arrive on site to troubleshoot and resolve the problem.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A power distribution system, characterized in that, It includes a power distribution module, a maintenance output module, and an uninterruptible power supply; among which The power distribution module includes a main power distribution interface and a power distribution output interface; The power distribution module's power distribution output interface is electrically connected to the maintenance output module, the maintenance output module is electrically connected to the uninterruptible power supply, and the maintenance output module is also electrically connected to the load module; The main power distribution interface is connected to an external power supply device, and the power distribution output interface outputs electrical energy to the maintenance output module. The maintenance output module has a normal power supply mode and a maintenance mode. When the maintenance output module is in normal power supply mode, it transmits the electrical energy supplied by the power distribution module to the uninterruptible power supply, which then outputs it to the maintenance output module. Finally, the maintenance output module transmits the electrical energy to the load module. When the maintenance output module is in maintenance mode, it directly transmits the electrical energy output by the power distribution module to the load module.

2. The power distribution system according to claim 1, characterized in that, A first circuit and a second circuit are connected between the maintenance output module and the load module. The first circuit and the second circuit are connected in parallel. The uninterruptible power supply is connected to the first circuit. The maintenance output module is used to control the on / off state of the first circuit and the second circuit.

3. The power distribution system according to claim 2, characterized in that, The maintenance output module also includes a control switch connected between the first circuit and the second circuit, which is used to control the on / off state of the first circuit and the second circuit.

4. The power distribution system according to claim 1, characterized in that, The power distribution system further includes an expansion module, which has an expansion output interface for connecting loads. The expansion module and the power distribution module are connected via an expansion circuit, enabling the power distribution module to distribute power to the expansion module via the expansion circuit.

5. The power distribution system according to claim 4, characterized in that, The expansion circuit is connected to the maintenance output module. When the maintenance output module is in normal power supply mode, it transmits the electrical energy supplied by the power distribution module to the uninterruptible power supply, which then transmits it to the maintenance output module. Finally, the maintenance output module transmits the electrical energy to the expansion circuit. When the maintenance output module is in maintenance mode, it directly transmits the electrical energy output by the power distribution module to the expansion circuit.

6. The power distribution system according to claim 4, characterized in that, It also includes a power management module, which is connected to the expansion module or the maintenance output module. The power management module has multiple power output interfaces, which are connected to the load module. The expansion module or the maintenance output module supplies power to the power management module.

7. The power distribution system according to claim 6, characterized in that, The power supply management module is provided with a first branch and a second branch, each having at least one power output interface. The first branch and the second branch are independently controlled and are connected to different load modules respectively.

8. The power distribution system according to claim 6 or 7, characterized in that, The power distribution system includes two maintenance output modules and two uninterruptible power supplies (UPS). Each maintenance output module is connected to one UPS. The power supply management module is connected to the two maintenance output modules.

9. The power distribution system according to claim 8, characterized in that, The power supply management module is also connected to a transfer switch, which has two conversion input interfaces, and the two conversion input interfaces are respectively connected to the two maintenance output modules.

10. The power distribution system according to claim 1, characterized in that, The power distribution module also includes at least one DC power supply module, which is connected to the load and is also connected to the maintenance output module.

11. The power distribution system according to claim 1, characterized in that, The power distribution module also includes a lightning protection module.

12. The power distribution system according to claim 1, characterized in that, The power distribution module and the maintenance output module, the maintenance output module and the uninterruptible power supply, and the maintenance output module and the load module are all connected by plug-in terminals.

13. A power distribution cabinet, characterized in that, It includes a cabinet and a power distribution system as described in any one of claims 1-12, wherein the power distribution system is disposed in the cabinet.

14. The power distribution cabinet according to claim 13, characterized in that, The power distribution module, the maintenance output module, and the uninterruptible power supply can all be detachably connected to the cabinet.

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