Power distribution system and power distribution cabinet

Abstract

The utility model provides a power distribution system and a power distribution cabinet, and relates to the technical field of data centers, and 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 with the maintenance output module, and the maintenance output module is connected with the uninterruptible power supply and the load module. The power distribution output interface outputs the electric energy to the maintenance output module. When the maintenance output module is in a normal power supply mode, the electric energy transmitted by the power distribution module is transmitted to the uninterruptible power supply and then output to the maintenance output module through the uninterruptible power supply, and the maintenance output module finally transmits the electric energy to the load module. When the maintenance output module is in the maintenance mode, the electric energy output by the power distribution module is directly transmitted to the load module. The power distribution system provided by the utility model is low in fault rate and easy to maintain.

Description

Technical Field

[0001] The present application relates to the technical field of data centers, and in particular to power distribution systems and power distribution cabinets. Background Art

[0002] With the continuous development of modular data centers, modular data center components are also constantly developing and iterating. Among them, the power distribution system of the data center is also developing synchronously. The power distribution cabinet products are more integrated, more intelligent, more functional and complex, and the product competitiveness is gradually improving, which is more adapted to the needs of the rapid development of data centers.

[0003] In the related art, the distribution module of the distribution cabinet has many integrated distribution structures, complex design, a large number of equipment connection terminals, and a high probability of internal distribution failure. When a fault occurs in the module, the entire distribution module needs to be disassembled for fault diagnosis, troubleshooting and analysis, which makes maintenance complicated and costly. Utility Model Content

[0004] The present application provides a power distribution system and a power distribution cabinet, which can specifically reduce the failure rate of the power distribution system and simplify the maintenance of the power distribution system.

[0005] The first aspect of the present application provides a power distribution system, including a power distribution module, a maintenance output module and an uninterruptible power supply. 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 uninterruptible power supply, and the maintenance output module is also electrically connected to the load module. The main power distribution interface is externally connected to the power supply equipment, and the power distribution output interface outputs electric 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 the normal power supply mode, the electric energy delivered by the power distribution module is transferred to the uninterruptible power supply, and then output to the maintenance output module via the uninterruptible power supply, and the maintenance output module finally transfers the electric energy to the load module. When the maintenance output module is in the maintenance mode, the electric energy output by the power distribution module is directly transferred to the load module.

[0006] The power distribution system provided by the present application decouples the power distribution system into a power distribution module, a maintenance output module, and an uninterruptible power supply. The three modules are independently arranged, and the power distribution function to the load is realized through the cooperation of the three modules. Compared with the related art that integrates all power distribution functions into one module and integrates all wiring terminals at the back end of the power distribution unit, the present application decouples the power distribution system into three independent modules, and the wiring of the power distribution system becomes a connection between modules. This can reduce the wiring complexity of the entire power distribution system, modularize the power distribution system, and make the power distribution system more flexible and cost-effective to configure.

[0007] 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 arranged in parallel, the uninterruptible power supply is connected to the first circuit, and the maintenance output module is used to control the on and off of the first circuit and the second circuit.

[0008] Optionally, the maintenance output module further includes a control switch, which is connected between the first circuit and the second circuit, and is used to control the on / off of the first circuit and the second circuit.

[0009] Optionally, the power distribution system further includes an extension module having an extension output interface for connecting a load. The extension module and the power distribution module are connected via an extension circuit, so that the power distribution module can distribute power to the extension module via the extension circuit.

[0010] Optionally, the expansion circuit is connected to the maintenance output module. When the maintenance output module is in a normal power supply mode, the power delivered by the power distribution module is transferred to the uninterruptible power supply, and then transferred to the maintenance output module via the uninterruptible power supply. The maintenance output module finally transfers the power to the expansion circuit.

[0011] When the maintenance output module is in maintenance mode, it directly transmits the power output by the power distribution module to the expansion circuit.

[0012] Optionally, it also includes a power supply management module, which is connected to the extension module or maintenance output module. The power supply management module has multiple power supply output interfaces, and the multiple power supply output interfaces are connected to the load module. The extension module or maintenance output module supplies power to the power supply management module.

[0013] Optionally, the power supply management module is provided with a first branch and a second branch, the first branch and the second branch have at least one power supply output interface, the first branch and the second branch are independently controlled, and the first branch and the second branch are respectively connected to different load modules.

[0014] Optionally, the power distribution system includes two maintenance output modules and two uninterruptible power supplies, each maintenance output module is connected to a corresponding uninterruptible power supply, and the power supply management module is connected to the two maintenance output modules.

[0015] Optionally, the power supply management module is further connected to a transfer switch, which has two transfer input interfaces, and the two transfer input interfaces are respectively connected to the two maintenance output modules.

[0016] Optionally, the power distribution module further includes at least one DC power supply module, which is connected to the load and is also connected to the maintenance output module.

[0017] Optionally, the power distribution module also includes a lightning protection module.

[0018] 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 through plug-in terminals.

[0019] A second aspect of the present application further provides a power distribution cabinet, comprising a cabinet body and the above-mentioned power distribution system, wherein the power distribution system is arranged in the cabinet body.

[0020] Optionally, the power distribution module, maintenance output module and uninterruptible power supply can be detachably connected to the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0022] Figure 1 A schematic diagram of a power distribution system proposed in an embodiment of the present application;

[0023] Figure 2 Another schematic diagram of the power distribution system proposed in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of the power distribution cabinet proposed in an embodiment of the present application;

[0025] Figure 4 This is a rear view of the power distribution cabinet proposed in an embodiment of the present application.

[0026] Reference numerals:

[0027] 10. Power distribution system;

[0028] 110. Power distribution module; 111. Power distribution main 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 terminals; 117. Digital interface; 118. Electric meter interface;

[0029] 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;

[0030] 130. Uninterruptible power supply; 131. Power inlet; 132. Power outlet;

[0031] 140. Extension module; 141. Extension input interface; 142. Extension output interface;

[0032] 150. Power supply management module; 151. Power supply input interface; 152. Power supply output interface;

[0033] 160. Switch; 161. Input conversion interface; 162. Output conversion interface;

[0034] 170, first circuit; 180, second circuit; 190, expansion circuit;

[0035] 20. Cabinet body; 210. Cabinet door;

[0036] 30. Switch; 40. Monitoring host; 50. Fan module. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0039] In this application, unless otherwise specified or limited, the terms "mounted," "connected," and "fixed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integration; direct connections, indirect connections through an intermediate medium, or internal connections between two components or interactions between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] In the above description, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0042] With the continuous development of modular data centers, modular data center components are also evolving and iterating, and the power distribution system of data centers is also developing in parallel. Power distribution cabinet products are becoming more integrated, intelligent, and multifunctional, with increasing complexity. Their competitiveness is also gradually improving, making them more adaptable to the needs of the rapid development of data centers. Modular power distribution cabinets include micro-module-level power supply and distribution cabinets or row-level integrated comprehensive power distribution cabinets.

[0043] The modularity and high integration of the 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-space of the cabinet (U-space is the most commonly used basic unit in the data center industry for calibrating the physical space for cabinet storage equipment. It is also the basic unit for calibrating the physical size of servers, storage, switches and other equipment. The height of 1U is 1.75 inches and the width is 19 inches). The power supply and distribution connections of all equipment are realized on the distribution module of the distribution cabinet, which has a higher degree of integration, full functions and complexity.

[0044] In the relevant power distribution cabinet technology, the power distribution part of the power distribution cabinet is made into a cabinet-type integrated power distribution unit. The power distribution unit is integrated based on the cabinet frame. The power distribution unit integrates the mains input, input and output power distribution of the uninterruptible power supply, maintenance bypass of the uninterruptible power supply, parallel operation or dual-channel redundancy of the uninterruptible power supply, power distribution of the cabinet load-level distribution unit and system DC distribution. All wiring terminals are integrated at the back end of the power distribution module, and all equipment must be connected through OT terminals to achieve the final power distribution equipment connection.

[0045] In this way, after the modular integration of power distribution in related technologies, although it can adapt to customer choices in more 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, and the failure risk points of the power distribution system will increase. In addition, when a fault occurs in the module, the entire power distribution unit needs to be disassembled for fault diagnosis, troubleshooting and analysis, which makes maintenance complex and costly.

[0046] Based on this, the embodiment of the present application provides a power distribution system that is decoupled into a combination of multiple modules, which can reduce the complexity of the power distribution system, reduce the integration, and help reduce the number of connection terminals of the power distribution system to reduce the probability of single point failure. Moreover, when a single module fails, it is only necessary to remove and repair the faulty module in a targeted manner, without the need to disassemble the entire power distribution system for inspection and analysis, thereby reducing maintenance costs.

[0047] The following describes in detail an embodiment of the power distribution system 10 provided in this application with reference to the accompanying drawings.

[0048] Figure 1 A schematic diagram of a power distribution system proposed in an embodiment of the present application.

[0049] like Figure 1 As shown, an embodiment of the present application provides a power distribution system 10, which includes a power distribution module 110, a maintenance output module 120, and an uninterruptible power supply 130. The power distribution module 110, the maintenance output module 120, the uninterruptible power supply 130, and the load module are all independent module structures. Among them, the power distribution module 110 includes a main power distribution interface 111 and a power distribution output interface 112. The main power distribution interface 111 of the power distribution module 110 can be connected to an external user power supply. Usually, the main power distribution interface 111 is connected to an external mains power supply. After the mains power enters the power distribution module 110 through the main power distribution interface 111, it can be output from the power distribution output interface 112 of the power distribution module 110.

[0050] In the present 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.

[0051] The user power supply can input electrical energy to the distribution module 110 through the main distribution interface 111. A distribution circuit is provided inside the distribution module 110. The external electrical energy input from the main distribution interface 111 can be transmitted in the distribution circuit. The distribution output interface 112 is connected to the distribution circuit inside the distribution module 110. The distribution output interface 112 can output electrical energy to the maintenance output module 120.

[0052] 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 electric energy delivered by the 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. The maintenance output module 120 finally transfers the electric energy to the load module.

[0053] When the maintenance output module 120 is in the maintenance mode, the electric energy output by the power distribution module 110 can be directly transferred to the load module.

[0054] Thus, by decoupling the power distribution system 10 into a power distribution module 110, a maintenance output module 120, and an uninterruptible power supply 130, the three modules are independently configured, and the power distribution function to the load is achieved through the cooperation of the three modules. Compared to the related art that integrates all power distribution functions into a single module and integrates all wiring terminals at the back end of the power distribution unit, the present application decouples the power distribution system 10 into three independent modules, and the wiring of the power distribution system 10 becomes a connection between modules. This can reduce the wiring complexity of the entire power distribution system 10, thereby reducing the failure rate of the power distribution system.

[0055] In addition, the power distribution modules in the related art are all concentrated in a single power distribution unit, making it difficult to repair when a fault occurs within the power distribution unit. For example, when the uninterruptible power supply 130 fails, the power distribution unit needs to be disassembled as a whole. However, the power distribution unit has many integrated modules and many wiring connections, and the maintenance space is limited, which increases the difficulty of maintenance. When a single module of the power distribution system 10 of the present application fails, only the faulty module needs to be inspected, analyzed, and repaired. There is no need to disassemble the entire power distribution unit for repair as in the related art, making maintenance more convenient, increasing maintenance efficiency, and reducing maintenance costs.

[0056] The present 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 in conjunction with each other, and the number of the uninterruptible power supply 130 and the maintenance output module 120 can be flexibly configured according to actual conditions, which is beneficial to reducing the user's configuration cost.

[0057] Moreover, the present 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 converted to maintenance mode. At this time, the distribution module 110 directly supplies power to the load. In this way, when the uninterruptible power supply 130 fails, it is possible to maintain the uninterruptible power supply 130 while also distributing power to the load.

[0058] Exemplarily, the power distribution module 110 is configured with an electricity meter, a fuse, and a monitoring sensor. The electricity meter, the fuse, and the 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 AC power. The electricity meter and the monitoring sensor are used to collect and record AC power parameters.

[0059] For example, in order to ensure the safety of the distribution module 110, the distribution module 110 also includes a lightning protection module 115, which includes a lightning protection switch 1151 and a lightning arrester 1152. The lightning protection module 115 is connected to the distribution circuit inside the distribution module 110 to provide the lightning arrester 1152 with the electrical energy required for its operation.

[0060] In addition, the power distribution module 110 can also be provided with an air switch, which plays the role of connecting, disconnecting and carrying the rated working current in the power distribution module 110. When the circuit or load has abnormalities such as overload, short circuit, undervoltage, etc., it can quickly cut off the circuit and provide reliable protection, which is beneficial to the power safety of the power distribution module 110.

[0061] Exemplarily, an uninterruptible power supply 130 (UPS) has at least an inverter and an energy storage device (such as a battery). Electric energy is transmitted 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 on the load module. For example, if the mains power supply fails, the energy storage device in the uninterruptible power supply 130 can continuously supply power to the load module.

[0062] Exemplarily, the maintenance output module 120 and the uninterruptible power supply 130 are both provided with multiple input interfaces and output interfaces, and 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.

[0063] Exemplarily, the maintenance output module 120 is provided with a plurality of interfaces for connecting to the load module, and each interface can be connected to a load.

[0064] For some possible implementations, see Figure 1The external power 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 working 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 in power distribution to ensure the stability of power distribution to the load. In the maintenance mode, the maintenance output module 120 directly transmits the power provided by the power distribution module 110 to the load module.

[0065] In order to realize 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 electric energy can be transferred from the first circuit 170 or the second circuit 180 to the load module.

[0066] It should be noted that the first circuit 170 and the second circuit 180 are both connected to the power distribution module 110, and 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.

[0067] For example, to ensure that first circuit 170 and second circuit 180 do not affect each other, first circuit 170 and second circuit 180 are connected in parallel. This ensures that a failure in one circuit does not affect the normal operation of the other circuit. The maintenance output module 120 can be operated to control the on / off state of first circuit 170 and second circuit 180, thereby switching the maintenance output module 120 between two operating modes.

[0068] Exemplarily, the first circuit 170 and the second circuit 180 may be connected to the power distribution module 110 respectively. For example, the power distribution module 110 is provided with a plurality of power distribution output interfaces 112, and the first circuit 170 and the second circuit 180 are connected to two different power distribution output interfaces 112 respectively.

[0069] Alternatively, in order to reduce the complexity of wiring, the first circuit 170 and the second circuit 180 can also be connected to the same distribution output interface 112 of the distribution module 110. In this case, a wire is led out from the distribution output interface 112, and the first circuit 170 and the second circuit 180 are both connected to the wire.

[0070] When controlling the on / off of the first circuit 170 and the second circuit 180 , switch structures may be provided on the first circuit 170 and the second circuit 180 , respectively, so that the on / off of the respective circuits can be controlled by the switch structures on the first circuit 170 and the second circuit 180 .

[0071] In some possible implementations, in order to simplify the structure, the on and off 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. The control switch 121 can be, for example, a single-pole double-throw switch, etc. The control switch 121 is connected between the first circuit 170 and the second circuit 180. The control switch 121 can control the on and off of the first circuit 170 and the second circuit 180.

[0072] Exemplarily, 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 through the wire, and one of the power receiving ends of the control switch 121 is connected to the power distribution output interface 112 through a wire. The control switch 121 also has at least two power transmission ends, where the two power transmission ends are respectively connected to the first circuit 170 and the second circuit 180. The control switch 121 can control the power receiving end and one of the power transmission ends to be energized, so as to realize the control of the first circuit 170 or the second circuit 180 and the power distribution output interface 112 to be energized.

[0073] In some possible embodiments, the multiple input structures on the maintenance output module 120 may, for example, include a first input interface 122 and a second input interface 124, the output interface on the maintenance output module 120 may, for example, include 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.

[0074] 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 be electrically connected to the first output interface 123 within 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 transmitting electrical energy between the power inlet 131 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 now forms a first circuit 170. At this point, a load can be directly connected to the power outlet 132 of the uninterruptible power supply 130 to provide the load with consistent electrical energy.

[0075] In some possible embodiments, 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, and the load can be electrically connected to the second output interface 125. At this time, the circuit between the 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 electrical energy to the load.

[0076] It should be noted that the maintenance output module 120 typically has multiple second output interfaces 125 for connecting to multiple loads, thereby simultaneously powering multiple loads. The second input interface 124 and the multiple second output interfaces 125 are connected by wires. The wires extending from the second input interface 124 can be divided into multiple branches, each of which can be connected to a corresponding second output interface 125.

[0077] Exemplarily, 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 one power distribution output interface 112 can lead out a wire connected to two first input interfaces 122 respectively.

[0078] Exemplarily, the maintenance output module 120 is provided with a first input interface 122, the power distribution output interface 112 is connected to the first input interface 122, and 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 is connected to the first input interface 122. The other ends of the first circuit 170 and the second circuit 180 also intersect at a point inside the maintenance output module 120, and this intersection is connected to the second output interface 125 via a wire.

[0079] The maintenance output module 120 has a limited number of second output interfaces 125 for connecting to loads. When the number of loads requiring power distribution is too large, the second output interfaces 125 on the maintenance output module 120 cannot meet the requirements for simultaneously distributing power to each load. Therefore, in some possible implementations, a power distribution structure capable of distributing power to the loads can be added to accommodate the simultaneous power distribution of more loads. For example, the power distribution system 10 can further include an expansion module 140, which has an expansion output interface 142 for connecting to the loads. There are multiple expansion output interfaces 142 on the expansion module 140, and each expansion output interface 142 can be connected to a load to distribute power to the load. The expansion module 140 can also include an expansion input interface 141, which is used to receive electrical energy. The expansion input interface 141 and the expansion output interface 142 are electrically connected inside the expansion module 140, so that the electrical energy input through the expansion input interface 141 can be output through the expansion output interface 142.

[0080] Exemplarily, the expansion module 140 can be electrically connected to the second output interface 125 of the maintenance output module 120 via the expansion output interface 142 , so that the maintenance output module 120 can supply power to the expansion module 140 in both the normal power supply mode and the maintenance mode.

[0081] In some possible implementations, such as Figure 1 As shown, the power distribution module 110 can distribute power to the system's DC components. For example, the DC components on the power distribution module 110 include power indicator lights, lighting, ambient lighting, smart door locks, or micro switches. To distribute power to these DC components, a DC power supply is required. To this end, 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 components to provide power to the DC components.

[0082] In order to provide stable and continuous electric energy to the DC power supply module 114, the DC power supply 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, and the distribution module 110 is provided with a distribution input interface 113. The third output interface 126 of the maintenance output module 120 is connected to the distribution input interface 113. The distribution input interface 113 is connected to the DC power supply module 114 inside the distribution module 110. The third output interface 126 is connected to the first circuit 170, so that the electric energy after the uninterruptible power supply 130 can be transmitted to the third output interface 126 to transmit stable electric energy to the DC power supply module 114. The DC power supply module 114 serves as a DC voltage stabilization structure, and its DC conversion circuit can convert the AC power transmitted by the distribution input interface 113 into DC power to power DC devices.

[0083] It should be noted that in order to be able to still supply power to the DC power supply 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 provided to the third output interface 126 through the second circuit 180.

[0084] Exemplarily, the ends of the first circuit 170 and the second circuit 180 for connecting to the second output interface 125 can be connected to one point, and the third output interface 126 can be connected to the connection point between the first circuit 170 and the second circuit 180 through a wire.

[0085] In some possible embodiments, in order to avoid occupying the second output interface 125 on the maintenance output module 120 for directly connecting to the load, the extension module 140 can also be connected to the power distribution module 110 through the extension circuit 190. When the maintenance output module 120 supplies power to the DC power supply module 114 of the power distribution module 110, it can also supply power to the extension module 140.

[0086] For example, the power distribution module 110 is provided with a plurality of power distribution output interfaces 112, one of which is connected to the extension input interface 141 of the extension module 140 through the extension 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 supply module 114. In this way, the electric energy transmitted from the maintenance output module 120 to the power distribution input interface 113 can be diverted to the extension module 140 when it is transmitted toward the DC power supply module 114 to distribute power to the load connected to the extension module 140.

[0087] In this way, when the maintenance output module 120 is in normal power supply mode, the electric energy delivered by the distribution module 110 can be transmitted to the uninterruptible power supply 130, and then transmitted to the maintenance output module 120 via the uninterruptible power supply 130. The maintenance output module 120 finally transmits the electric energy to the expansion circuit 190, and finally distributes power to the load on the expansion module 140.

[0088] When the maintenance output module 120 is in the maintenance mode, the power output by the power distribution module 110 can be directly transferred to the expansion circuit 190 .

[0089] In some possible embodiments, a circuit breaker is provided between the main power distribution interface 111 and the power distribution output interface 112 to control the on and off 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 for distributing power to the second output interface 125 by the first circuit 170 and the second circuit 180. When there are multiple second output interfaces 125, each second output interface 125 is provided with a circuit breaker.

[0090] Figure 3 This is a schematic diagram of a three-dimensional structure of a power distribution cabinet proposed in an embodiment of the present application. Figure 4 This is a rear view of the power distribution cabinet proposed in an embodiment of the present application.

[0091] like Figure 1 、 Figure 3 and Figure 4 As shown, in some possible embodiments, to satisfy the requirement that power distribution module 110 distribute power to DC devices, power distribution module 110 is further provided with device connection terminals 116, through which DC devices can be connected to power distribution module 110. Furthermore, power distribution module 110 may also be provided with a digital interface 117 capable of connecting to electrical devices such as surge protectors, as well as an electric meter interface 118. The power distribution output interface 112, power distribution input interface 113, device connection terminals 116, digital interface 117, and electric meter interface 118 form a cascade interface integrated on power distribution module 110, enabling cascading of devices within row-level cabinets.

[0092] For example, the interfaces of each module, as well as the interfaces between the load and the module, are connected by plug-in terminals. The plug-in method is used to connect two modules or the module and the load, which facilitates the on-site installation of each module of the power distribution system 10, and also facilitates the connection between each power distribution equipment in the cabinet and the power distribution system 10, thereby improving the on-site installation efficiency.

[0093] In some possible implementations, the power distribution cabinet is also equipped with other functional modules, such as a switch 30, a monitoring module, and an emergency fan for heat dissipation. To provide power to the emergency fan module 50, the switch 30, and the monitoring module, and to manage and control these modules, the power distribution system 10 also includes a power management module 150. The power management module 150 is provided with a power input interface 151 and a power output interface. The power input interface 151 is used to connect power to the power management module 150, and the power output interface 152 can be connected to the switch 30, the fan module 50, and the monitoring module to transmit power to the fan module 50, etc.

[0094] Exemplarily, 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 maintenance output module 120 or the expansion module 140 can provide the power management module 150 with continuous and stable power.

[0095] Exemplarily, the power management module 150 has a plurality of power output interfaces 152 , and the plurality of power output interfaces 152 can be connected to the fan module 50 , the switch 30 , the monitoring module, etc., respectively.

[0096] In some possible implementations, the fan module 50 may be provided with multiple fan structures, each of which may be connected to a power output interface 152 to implement control of a single fan structure so as to turn on and off a corresponding number of fans according to actual needs.

[0097] Because the fan module 50 is usually turned off by default, when the fan needs to be turned on, it is controlled to be turned on through the power supply management module 150. Therefore, the power supply 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 module and other devices.

[0098] For example, the power supply management module 150 is internally provided with a first branch and a second branch, and the first branch and the second branch each have at least one power supply output interface 152. The electric energy input by the power supply input interface 151 can be transmitted through the first branch and the second branch. The first branch and the second branch are independently controlled, and the first branch and the second branch are used to connect different load modules.

[0099] For example, the fan module 50 is connected to the first branch, and the monitoring and switch 30 and other modules are connected to the second branch. The first branch can provide power to the fan module 50 and can also provide on / off management functions for the fan module 50. For example, a circuit board is provided within the power management module 150, and the circuit board is pre-installed with a control program that can control the on / off of the fan module 50.

[0100] The switch 30, the monitoring module, etc. are connected to the second branch, and the second branch can be used to power the switch 30 and the monitoring module.

[0101] In the related art, the fan module 50, monitoring module, and switch 30 all require a separate cabinet-level power distribution unit to power them, which increases system configuration and costs. The present application provides a power management module 150 with independent first and second branches. The two branches can be independently controlled. The first branch is used to control and manage the fan module 50, and the second branch is used to control and manage the switch 30 and monitoring module. This allows one module to perform the functions of multiple systems, reducing the number of system power distribution devices and saving costs.

[0102] If the power distribution system 10 is a dual-path power distribution architecture, the solution in the related art fails to implement an independent dual-path redundant design. This will result in one of the uninterruptible power supplies 130 failing and losing power. The monitoring module and switch 30 and other modules in the system cannot be used normally and can only be used normally after the fault is repaired. Therefore, there is incompleteness in the design of the solution in the related art.

[0103] Figure 2 Another schematic diagram of the power distribution system proposed in an embodiment of the present application.

[0104] Combine Figure 1 and Figure 2 As shown, in some possible implementations, the maintenance output module 120 and the uninterruptible power supply 130 of the present application are typically used in conjunction with one maintenance output module 120, with one uninterruptible power supply 130 being used. In this implementation, the power distribution system 10 includes two sets of maintenance output modules 120 and uninterruptible power supplies 130, for example, two maintenance output modules 120 and two uninterruptible power supplies 130.

[0105] See Figure 2 Each maintenance output module 120 is connected to a corresponding uninterruptible power supply 130. The configuration of each maintenance output module 120, uninterruptible power supply 130, and power distribution module 110 is consistent. For example, they all include a first circuit 170 and a second circuit 180, and the connection method of the first circuit 170 and the second circuit 180 is also consistent. The power input interface 151 of the power management module 150 is connected to the second output interface 125 of each maintenance output module 120.

[0106] Alternatively, the power distribution module 110 is provided with two expansion modules 140 , the two expansion modules 140 are respectively connected to one maintenance output module 120 , and the power input interface 151 of the power management module 150 is respectively connected to the two expansion modules 140 .

[0107] By setting up two sets of maintenance output modules 120 and uninterruptible power supplies 130, a dual-path backup setting of the power distribution system 10 is realized, and the power supply management module 150 is provided with a dual-path uninterruptible power supply 130 power distribution input. When one path of the uninterruptible power supply 130 fails, it will not only not affect the power supply of the other path of the uninterruptible power supply 130, but the power supply management module 150 can also continue to be distributed through the second circuit 180 between the maintenance output module 120 and the power distribution module 110, so that the power supply management module 150 can use power normally.

[0108] In some possible embodiments, in order to facilitate the provision of dual power supplies to the power supply management module 150, the power distribution system 10 also includes a conversion switch 160, the conversion switch 160 includes a conversion input interface 161 and a conversion output interface 162, the conversion output interface 162 of the conversion switch 160 is connected to the power input interface 151, the conversion switch 160 has multiple conversion input interfaces 161, two of which can be respectively connected to a maintenance output module 120, or when the power distribution system 10 is provided with an extension module 140, the conversion input interface 161 is connected to the extension output interface 142 of the extension module 140.

[0109] Exemplarily, the transfer switch 160 and the expansion module 140 , the transfer switch 160 and the maintenance output module 120 , and the transfer switch 160 and the power supply management module 150 are all connected via plug-in terminals, which facilitates installation and disassembly.

[0110] The present application also provides a power distribution cabinet, such as Figure 3 and Figure 4 As shown, the power distribution cabinet includes a cabinet body 20 and the above-mentioned power distribution system 10 , and the power distribution system 10 is arranged in the cabinet body 20 .

[0111] The cabinet body 20 of the power distribution cabinet is provided with a U-space, and the power distribution module 110 , the maintenance output module 120 and the uninterruptible power supply 130 are all provided in the U-space of the cabinet body 20 .

[0112] In some possible embodiments, the power distribution module 110, the maintenance output module 120, the uninterruptible power supply 130, the expansion module 140, the transfer switch 160 and the power supply management module 150 all adopt a rack-type structure. For example, these modules can be provided with a shell, and the functional structures are integrated in their respective shells. Then, each module is plugged into the U-position space of the cabinet 20, so that each module can be detachably connected to the cabinet 20.

[0113] For example, a 2U space is reserved at the top of the cabinet 20U space for installing the switch 30 and the monitoring host 40 of the distribution cabinet. The distribution module 110, the maintenance output module 120, and the uninterruptible power supply 130 are installed in the U space of the cabinet 20 from top to bottom.

[0114] For example, the cabinet body 20 has a cabinet door 210 that can be opened and closed. When the cabinet door 210 is closed, the modules can be hidden in the cabinet body 20. When the cabinet door 210 is opened, the switch structure on the modules can be operated.

[0115] For example, the power distribution module 110 is integrated with an intelligent lighting switch and a manual switch. The intelligent lighting switch can be turned on and off by manually toggling the manual switch. In addition, the lightning arrester 1152 can be turned on and off by manually toggling the lightning protection switch 1151.

[0116] For example, in order to prevent accidental touching of the switch on the distribution module 110, a transparent protective cover can be provided on the front panel of the distribution module 110. In order to prevent electric shock, a back cover can be provided at the rear end of the distribution module 110 to hide the wiring positions.

[0117] For example, to reduce the risk of single-point failures in the power distribution system 10 and improve maintenance portability, one or two maintenance output modules 120 for the uninterruptible power supply 130 can be installed inside the cabinet. The maintenance output module 120 is used in conjunction with the uninterruptible power supply 130, providing both a maintenance bypass mode and an inverter output mode for the uninterruptible power supply 130. The maintenance output module 120 is also provided with multiple output interfaces for terminals to be plugged into the cabinet-level power distribution module 110. Users can flexibly configure a single-channel or dual-channel power distribution architecture based on the importance of the system's power distribution, and simultaneously configure different uninterruptible power supplies 130 and maintenance output modules 120, reducing costs and facilitating installation, operation, and maintenance.

[0118] For example, the fan module 50 can be installed on the end surface of the cabinet door 210 facing the interior of the cabinet body 20 and deployed at the bottom of the cabinet door 210. The cabinet door 210 can be equipped with one or more fan modules 50, and each fan module 50 can be equipped with multiple fan groups, all of which are powered by the power management module 150. When the number of high temperature alarms in the cabinets in the system exceeds one, the monitoring module will work with the power management module 150 to control the first branch switch, so that all emergency fan modules 50 in the system are turned on to provide temporary cooling, allowing users or maintenance teams to arrive at the site to troubleshoot and solve the problem.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power distribution system, characterized in that: Including power distribution module, maintenance output module and uninterruptible power supply; The power distribution module includes 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, 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 electric 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 a normal power supply mode, the power delivered by the power distribution module is transferred to the uninterruptible power supply, and then output to the maintenance output module via the uninterruptible power supply, and the maintenance output module finally transfers the power to the load module; When the maintenance output module is in the maintenance mode, the electric energy output by the power distribution module is directly transferred 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 arranged in parallel. The uninterruptible power supply is connected to the first circuit. The maintenance output module is used to control the on and off of the first circuit and the second circuit.

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

4. The power distribution system according to claim 1, wherein: The power distribution system also includes an extension module having an extension output interface for connecting a load. The extension module and the power distribution module are connected via an extension circuit, so that the power distribution module is used to distribute power to the extension module via the extension 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, the power delivered by the power distribution module is transferred to the uninterruptible power supply, and then transferred to the maintenance output module via the uninterruptible power supply. The maintenance output module finally transfers the power to the expansion circuit. When the maintenance output module is in the maintenance mode, the electric energy output by the power distribution module is directly transferred to the expansion circuit.

6. The power distribution system according to claim 4, characterized in that: It also includes a power supply management module, which is connected to the extension module or the maintenance output module. The power supply management module has multiple power supply output interfaces, and the multiple power supply output interfaces are connected to the load module. The extension module or the maintenance output module supplies power to the power supply 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, the first branch and the second branch have at least one power supply output interface, the first branch and the second branch are independently controlled, and the first branch and the second branch are respectively connected to different load modules.

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. Each maintenance output module is connected to a corresponding uninterruptible power supply, and 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 further connected to a transfer switch, and the transfer switch has two transfer input interfaces, and the two transfer input interfaces are respectively connected to the two maintenance output modules.

10. The power distribution system according to claim 1, wherein: The power distribution module further includes at least one DC power supply module, which is connected to a load and is also connected to the maintenance output module.

11. The power distribution system according to claim 1, wherein: The power distribution module also includes a lightning protection module.

12. The power distribution system according to claim 1, wherein: 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 through plug-in terminals.

13. A power distribution cabinet, characterized in that: It comprises a cabinet and the power distribution system according to any one of claims 1 to 12, wherein the power distribution system is arranged 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.

Images