Inter-column power supply conversion cabinet

Abstract

The utility model discloses an inter-column power supply conversion cabinet, which comprises a cabinet body, and a power supply input module, a power supply conversion module, a power supply direct current distribution module and a monitoring module which are arranged in the cabinet body, the power supply input module is used for accessing a first direct current / alternating current power supply and controlling the on-off of an input branch; the power supply conversion module is used for converting a first direct current / alternating current power supply into a second direct current power supply; the power supply DC power distribution module is used for performing DC power distribution and realizing DC output main loop and / or branch metering; the monitoring module is used for monitoring the working state of the power conversion cabinet in real time and collecting and storing the operation parameters of the power conversion cabinet. According to the utility model, the technical problem that the existing power supply conversion cabinet cannot realize multi-type alternating current or direct current to direct current is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply devices, in particular to an inter-row power conversion cabinet. Background Art

[0002] With the rapid development of communication networks, operators' computer rooms are built with a variety of power supply standards, including AC220V, AC380V, DC48V, DC240V, DC336V, etc., among which communication transmission rooms usually use DC48V power supply. The patent document with application number CN201921759751.6 discloses a modular structure of a dual-power conversion switch and a dual-power conversion cabinet, including a frame for sliding connection to the cabinet column, two sets of copper bars respectively insulated and fixed above and below the frame, and a ground bar fixed to the frame; wherein, the side of the frame facing the cabinet door is provided with a first mounting position and a second mounting position; the first mounting position is used to connect switch bodies of different mounting sizes, and the second mounting position is used to connect controllers matching the switch body; the two sets of copper bars are respectively connected to the input and output ends of the switch body. The current conventional practice is to use a high-frequency switching power supply to provide a stable DC48V power supply for communication transmission equipment through an AC220V to DC48V power supply. However, due to discrepancies between planning and actual development within some communications buildings, a large number of 240V DC high-voltage power supplies were installed on certain floors. This resulted in significant redundancy in actual use. Furthermore, the AC power distribution system on these floors lacked the redundant capacity to convert 220V AC to 48V DC power, resulting in excessively long AC power lines across floors. Furthermore, the current demand for energy conservation and carbon reduction has led operators to adopt cold aisles in new equipment rooms to reduce the overall power usage effectiveness (PUE) and improve energy efficiency. Therefore, a new inter-row power converter cabinet is urgently needed to address the technical issues inherent in existing power converter cabinets, which cannot achieve multi-type AC or DC conversion. Utility Model Content

[0003] The main purpose of the utility model is to provide an inter-row power conversion cabinet, aiming to solve the technical problem that the existing power conversion cabinet cannot realize the conversion of multiple types of AC or DC to DC.

[0004] To achieve the above-mentioned object, the present invention provides an inter-row power conversion cabinet, wherein the inter-row power conversion cabinet comprises: a cabinet body, and a power input block, a power conversion block, a power DC distribution block, and a monitoring block disposed inside the cabinet body;

[0005] The power input block is used to connect to the first DC / AC power supply and control the opening and closing of the input branch;

[0006] The power conversion block is used to convert the first DC / AC power supply into a second DC power supply;

[0007] The power supply DC distribution block is used to perform DC power distribution and realize DC output main circuit and / or branch circuit metering;

[0008] The monitoring block is used to monitor the working status of the power conversion cabinet in real time, and to collect and store the operating parameters of the power conversion cabinet.

[0009] In one of the preferred solutions, the power input block is arranged at the bottom of the cabinet; one end of the power input block is connected to a DC input or an AC input, and the other end of the power input block is connected to a power conversion block.

[0010] In one preferred solution, the power input block includes an isolating switch, a DC input branch, and an AC input branch;

[0011] The isolating switch is connected to the DC input branch and the AC input branch respectively, and is used to control the switching of the DC input branch or the AC input branch.

[0012] In one of the preferred solutions, the DC input branch includes a parallel copper busbar and a DC input fuse; the DC input fuse is connected to the isolating switch and the DC input respectively.

[0013] In one of the preferred solutions, the AC input branch includes an AC input molded case circuit breaker, and the AC input molded case circuit breaker is connected to the AC input and the disconnector respectively.

[0014] In one of the preferred solutions, the power input block further includes a module-controlled circuit breaker, and the module-controlled circuit breaker is connected to the power conversion block.

[0015] In one of the preferred solutions, the power conversion block includes a power module; a module-controlled circuit breaker is provided at the front end of the input branch of the power module, and the power module is used to convert the connected first DC / AC power supply into a second DC power supply.

[0016] In one of the preferred solutions, the power conversion block further includes a rectifier module, and the rectifier module is installed in the power conversion cabinet by hot plugging.

[0017] In one of the preferred solutions, the power supply DC distribution block includes a DC output positive pole bus and a DC output negative pole fuse; the DC output negative pole fuse is configured with a maximum of 80 circuits.

[0018] In one of the preferred solutions, the monitoring block is configured with at least one RS485 interface and one TCP / IP communication interface.

[0019] In the above technical solution of the present invention, the inter-row power conversion cabinet includes: a cabinet body, and a power input block, a power conversion block, a power DC distribution block, and a monitoring block disposed within the cabinet body; the power input block is used to connect to a first DC / AC power source and control the disconnection of the input branch; the power conversion block is used to convert the first DC / AC power source into a second DC power source; the power DC distribution block is used to perform DC power distribution and implement DC output main circuit and / or branch metering; the monitoring block is used to monitor the operating status of the power conversion cabinet in real time and collect and store the operating parameters of the power conversion cabinet. The present invention solves the technical problem that existing power conversion cabinets cannot achieve multi-type AC or DC to DC conversion.

[0020] In the present invention, an AC / DC input part is set through a power input block, which includes both a high-voltage DC 240V input fuse and an AC 220V molded case circuit breaker, with a matching isolation switch, to enable the power conversion cabinet to be used in different power supply scenarios, and the system's high-voltage DC input fuse part is equipped with an isolation insulation panel, which improves safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a front structural diagram of an inter-row power conversion cabinet according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the reverse structure of an inter-row power conversion cabinet according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the cold aisle layout of the inter-row power conversion cabinet according to an embodiment of the present invention;

[0025] Figure 4 This is an electrical schematic diagram of the inter-row power conversion cabinet according to an embodiment of the present invention.

[0026] Description of Figure Numbers:

[0027] 1. Parallel busbar; 2. First positive input fuse; 3. First negative input fuse; 4. Isolating switch; 5. Module control circuit breaker; 6. AC input molded case circuit breaker; 7. Power module; 8. DC output positive busbar; 9. Monitoring module; 10. DC output negative fuse.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, etc.) in the implementation mode of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in this utility model, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0032] Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] See also Figures 1-4 According to one aspect of the present invention, the present invention provides an inter-row power conversion cabinet, wherein the inter-row power conversion cabinet comprises: a cabinet body, and a power input block, a power conversion block, a power DC distribution block, and a monitoring block 9 disposed inside the cabinet body;

[0034] The power input block is used to connect to the first DC / AC power supply and control the opening and closing of the input branch;

[0035] The power conversion block is used to convert the first DC / AC power supply into a second DC power supply;

[0036] The power supply DC distribution block is used to perform DC power distribution and realize DC output main circuit and / or branch circuit metering;

[0037] The monitoring block 9 is used to monitor the working status of the power conversion cabinet in real time, and to collect and store the operating parameters of the power conversion cabinet.

[0038] Specifically, in this embodiment, the power input block is arranged at the bottom of the cabinet; one end of the power input block is connected to the DC input or AC input, and the other end of the power input block is connected to the power conversion block.

[0039] Specifically, in this embodiment, the power input block includes an isolating switch 4, a DC input branch, and an AC input branch; the isolating switch 4 is connected to the DC input branch and the AC input branch, respectively, and the isolating switch 4 is used to control the switching of the DC input branch or the AC input branch.

[0040] Specifically, in this embodiment, the DC input branch includes a parallel copper busbar 1 and a DC input fuse; the DC input fuse is connected to the disconnector 4 and the DC input respectively; the DC input fuse includes a first positive input fuse 2 and a first negative input fuse 3.

[0041] Specifically, in this embodiment, the DC input branch further includes a second positive input fuse and a second negative input fuse, supporting dual-path input high-voltage DC power supply.

[0042] Specifically, in this embodiment, the utility model installs an isolation insulating panel on the outside of the DC input fuse.

[0043] Specifically, in this embodiment, the AC input branch includes an AC input molded case circuit breaker 6, which is connected to the AC input and the disconnector 4 respectively; the AC input molded case circuit breaker 6 includes a first AC input molded case circuit breaker 6 and a second AC input molded case circuit breaker 6.

[0044] Specifically, in this embodiment, the power input block further includes a module-controlled circuit breaker 5 , and the module-controlled circuit breaker 5 is connected to the power conversion block.

[0045] Specifically, in this embodiment, when the power conversion cabinet inputs high-voltage DC, the isolating switch 4 is in the DC path state, the system is powered by DC, and the power module 7 can select a DC / DC module or an AC / DC module. When one high-voltage DC power supply is input, the parallel copper bus 1 is not removed, so that one power supply can also provide power for all modules. When two high-voltage DC power supplies are input, the parallel copper bus 1 is removed, and each output power supply supplies power to half of the modules, realizing AB backup in the system, and avoiding the front-end high-voltage DC power supply insulation monitoring and early warning due to different loop impedances; when the power conversion cabinet inputs AC, the isolating switch 4 is in the disconnected state, that is, in the AC path state, and the system is powered by AC. At this time, the power module 7 can only use an AC / DC module. The first AC input molded case circuit breaker 6 in the system is the main input, and the second AC input molded case is the backup input, which can be connected to the mail machine input. The two AC inputs have switching functions.

[0046] Specifically, in this embodiment, the cabinet size is 600*600*2000mm or 600*1200*2000mm, and the cabinet is arranged at the head of the channel. The present invention does not make specific limitations and can be set according to needs; for example, the height can also be configured to 1800mm, 2200mm, 2400mm. In order to adapt to modular DC cabin computer rooms and traditional computer rooms, the height of the power supply cabinet is changed, and the overall layout remains unchanged.

[0047] Specifically, in this embodiment, the power conversion block includes a power module 7; a module control circuit breaker 5 is provided at the front end of the input branch of the power module 7, and the power module 7 is used to convert the connected first DC / AC power supply into a second DC power supply; a module plug-in frame is provided in the cabinet, and the power module 7 is hot-swappable on the module plug-in frame; the module plug-in frame can be inserted with a DC240V to DC48V DC conversion power module 7 or an AC220V to DC48V rectifier power module 7. This utility model does not make specific limitations and can be set according to needs.

[0048] Specifically, in this embodiment, the power conversion block converts the first DC / AC power supply into the second DC power supply through the power module 7. In the present utility model, the power module 7 converts the DC240V or AC220V power supply into DC48V as an example for explanation. A module control circuit breaker 5 is configured at the front end of the power input branch of each power module 7 to facilitate system module replacement; the power conversion block also includes a rectifier module, which is installed in the power conversion cabinet in a hot-swappable manner; the rectifier module supports hot-swappable mode to avoid misoperation. The device is damaged instantly when the module is plugged in. The six rectifier modules have a soft start function with an adjustable soft start time of 3-10s. The heat dissipation of the rectifier module adopts a front-wind and rear-outlet mode, which is convenient for coordinating with the overall airflow organization of the cold channel, facilitating heat dissipation and improving energy efficiency. When the system monitors the failure of block 9, the rectifier module can autonomously balance the current without affecting the parameters that have been set for the rectifier module. Compared with the ambient temperature of 20°C, the difference between the DC output voltage of the rectifier module and the output voltage setting value shall not exceed ±0.02% of the output voltage setting value for every 1°C change in temperature.

[0049] Specifically, in this embodiment, the number of the module control circuit breakers 5 is the same as the number of the power modules 7 .

[0050] Specifically, in this embodiment, the power supply DC distribution block includes a DC output positive pole row 8 and a DC output negative pole fuse 10; the DC output negative pole fuse 10 is configured with a maximum of 80 circuits, which can basically assume the function of a DC distribution cabinet and reduce other power distribution investment; the power supply DC distribution block also includes a DC fuse. By setting the DC fuse in the main circuit of the DC output, the total current of the total circuit can be measured and displayed digitally. A feeder can also be installed in the DC output branch to measure the branch current and display it digitally; the DC output positive pole is grounded, and the negative pole is controlled by the DC output negative pole fuse 10. A -48V DC power supply is used, and multiple output fuses are configured in the system to meet the power distribution needs of a single micromodule without the need for additional terminal cabinets.

[0051] Specifically, in this embodiment, the DC input negative pole fuse can be configured according to actual needs, that is, it can be configured as multiple small fuses for direct power distribution, or it can be configured as a large fuse such as 630A or 400A as the fuse of the secondary DC distribution cabinet.

[0052] Specifically, in this embodiment, a DC output circuit breaker is further provided in the power conversion cabinet; the DC output negative fuse 10 and the DC output circuit breaker are arranged front and back on the top of the system to facilitate routing of output wiring.

[0053] Specifically, in this embodiment, the monitoring block 9 can monitor the equipment operation information in real time, including input voltage, input current, branch output voltage, branch output current, battery voltage, system efficiency, and current alarms, etc. The monitoring block 9 can monitor the system working status, collect and store system operating parameters in real time, set the power-off storage function of the parameters, and have the total input and total output real-time power meter and electricity metering function, and can fix the battery capacity according to the voltage value and past charge and discharge records, and control the controlled equipment according to the command of the monitoring center; the monitoring block 9 is equipped with at least one RS485 interface and one TCP / IP communication interface, and the product communication interface has the conditions for adjustment or supplementation according to the specific requirements of the user; realize the following remote control, remote signaling and remote control Measurement function; power input part, remote measurement: input voltage, input current, frequency and total input power; remote signaling: input overvoltage / undervoltage, phase loss, input overcurrent, frequency too high / too low, circuit breaker switch status; power module 7 part, remote measurement: power module 7 output voltage, each power module 7 output current; remote signaling: each power module 7 working status, fault or normal; remote control: on / off; DC distribution part: remote measurement: output voltage, total load current, branch current; remote signaling: output voltage overvoltage / undervoltage, branch fuse / switch status total warning function.

[0054] Specifically, in this embodiment, the power conversion cabinet also includes a battery. On the basis of the uninterrupted power supply of the high-voltage DC power supply, the battery is additionally provided to increase the backup power supply guarantee and improve the stability of the system; the power conversion cabinet is equipped with a battery access fuse; the battery access fuse includes a first battery positive pole fuse, a first battery negative pole fuse, a second battery positive pole fuse and a second battery negative pole fuse.

[0055] Specifically, in this embodiment, the power conversion cabinet is further provided with a cable protection cover, and the cable protection cover is used to prevent the cable jacket from being damaged.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. An inter-row power conversion cabinet, characterized in that: include: A cabinet, and a power input block, a power conversion block, a power DC distribution block, and a monitoring block placed inside the cabinet; The power input block is used to connect to the first DC / AC power supply and control the opening and closing of the input branch; The power conversion block is used to convert the first DC / AC power supply into a second DC power supply; The power supply DC distribution block is used to perform DC power distribution and realize DC output main circuit and / or branch circuit metering; The monitoring block is used to monitor the working status of the power conversion cabinet in real time, and to collect and store the operating parameters of the power conversion cabinet.

2. The inter-row power conversion cabinet according to claim 1, characterized in that: The power input block is arranged at the bottom of the cabinet; one end of the power input block is connected to a DC input or an AC input, and the other end of the power input block is connected to a power conversion block.

3. The inter-row power conversion cabinet according to any one of claims 1-2, characterized in that: The power input assembly block includes an isolating switch, a DC input branch and an AC input branch; The isolating switch is connected to the DC input branch and the AC input branch respectively, and is used to control the switching of the DC input branch or the AC input branch.

4. The inter-row power conversion cabinet according to claim 3, characterized in that: The DC input branch includes a parallel copper busbar and a DC input fuse; the DC input fuse is connected to the isolating switch and the DC input respectively.

5. The inter-row power conversion cabinet according to claim 3, characterized in that: The AC input branch includes an AC input molded case circuit breaker, which is connected to the AC input and the disconnector respectively.

6. The inter-row power conversion cabinet according to any one of claims 1-2, characterized in that: The power input block further includes a module-controlled circuit breaker, and the module-controlled circuit breaker is connected to the power conversion block.

7. The inter-row power conversion cabinet according to claim 6, characterized in that: The power conversion block includes a power module; a module-controlled circuit breaker is provided at the front end of the input branch of the power module, and the power module is used to convert the connected first DC / AC power supply into a second DC power supply.

8. The inter-row power conversion cabinet according to any one of claims 1-2, characterized in that: The power conversion block further includes a rectifier module, which is installed in the power conversion cabinet in a hot-swappable manner.

9. The inter-row power conversion cabinet according to any one of claims 1-2, characterized in that: The power supply DC distribution block includes a DC output positive pole bus and a DC output negative pole fuse; the DC output negative pole fuse is configured with a maximum of 80 circuits.

10. The inter-row power conversion cabinet according to any one of claims 1-2, characterized in that: The monitoring block is configured with at least one RS485 interface and one TCP / IP communication interface.

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