A novel combined parallel conversion power supply module and control method

Abstract

The present invention discloses a novel combined parallel conversion power supply module and control method, including: a plug box, the plug box has a power supply part and a connection part; a parallel conversion power supply, the parallel conversion power supply is placed in the power supply part and is electrically connected to the parallel conversion power supply connection end; a battery fuse, the battery fuse is fixedly connected to the plug box at the connection part; a battery connector female end seat, the battery connector female end seat is fixedly connected to the battery fuse. Using modular and standardized design ideas, the characteristics of advance pre-production, small size, light weight, and flexible configuration are achieved. It is mainly used in DC systems, shortening the production time of DC system panels, beautifying the cabinet layout of the cabinet group panel, and improving the efficiency of DC system panel cabinet manufacturers.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply systems, and in particular to a novel combined parallel conversion power supply module. Background Art

[0002] The parallel conversion power supplies and AC input switches, DC output switches, fuses and batteries in the parallel DC power supply systems on the market are all "distributed" installations and randomly combined. The laid cables have different wire diameters and lengths, and the workers' operating proficiency is different, resulting in differences in processing time, and the process cannot be unified during production. Summary of the invention

[0003] The main purpose of the present invention is to provide a novel combined parallel conversion power supply module, which can effectively solve the problems in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A novel combined parallel conversion power supply module, comprising:

[0006] A plug-in box, the plug-in box having a power supply unit and a connection unit;

[0007] A parallel conversion power supply, which is disposed in the power supply unit and is electrically connected to the parallel conversion power supply connection terminal;

[0008] A battery fuse, wherein the battery fuse is fixedly connected to the plug box at the connection portion;

[0009] A battery connector female terminal seat, wherein the battery connector female terminal seat is fixedly connected to the battery fuse.

[0010] Furthermore, the connecting portion is also fixed with a parallel conversion power supply input / output public terminal, and the parallel conversion power supply input / output public terminal is electrically connected to the parallel conversion power supply.

[0011] Furthermore, the connection portion is further provided with an AC input switch and a DC output switch, and the AC input switch and the DC output switch are fixedly connected to the plug box.

[0012] Furthermore, it also includes a power communication PCB board, and the power communication PCB board is fixed to the outer wall of the power supply unit.

[0013] Furthermore, it also includes a battery signal plug-in terminal, which is assembled on the connecting portion and detachably connected to the plug-in box.

[0014] Furthermore, the battery fuse, the battery signal plug-in terminal, the battery connector female terminal seat, the AC input switch and the AC input are all located on the same surface of the connecting portion.

[0015] Furthermore, it also includes a battery, the battery connector female terminal seat has a battery connector positive female terminal seat and a battery connector negative female terminal seat, the battery connector positive female terminal seat and the battery connector negative female terminal seat are electrically connected to the battery through power cables respectively, and the two power cables are of equal length.

[0016] Furthermore, the AC input switch is connected to an AC power source.

[0017] Furthermore, it also includes a module array rack for arranging a plurality of parallel conversion power supply modules for installation in parallel to form an array. The parallel conversion power supply is provided with an intelligent circuit to monitor and control the AC / DC circuit and DC / DC converter in the parallel conversion power supply.

[0018] A novel combined parallel conversion power supply control method is also provided, which is characterized by comprising the following steps:

[0019] Connect the module to the AC power supply and battery through the AC input switch and fuse respectively, and determine whether the AC power supply is working normally;

[0020] When the AC power supply is normal, the internal bus voltage is formed by the AC / DC circuit in the parallel conversion power supply. This bus voltage provides energy for the output converter DC / DC and the charging converter DC / DC at the same time. The output converter DC / DC generates a DC220V or DC110V or DC48V bus voltage, which is output through the DC output switch. The charging converter DC / DC outputs to charge the 12V battery. At the same time, another boost DC / DC converter provided by the battery connection is in standby mode.

[0021] When the AC power fails, the boost DC / DC converter connected to the battery continuously bears the output load, allowing the components to switch to the battery power supply without interruption.

[0022] Compared with the prior art, the present invention has the following beneficial effects: the invention is reasonably designed and easy to use, and utilizes modular and standardized design ideas to achieve the characteristics of advance pre-production, small size, light weight, and flexible configuration. It is mainly used in DC systems, shortening the production time of DC system panels, beautifying the cabinet layout of the cabinet group, and improving the efficiency of DC system panel manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1The figure is a schematic diagram of the structure of a novel combined parallel conversion power supply module of the present invention.

[0024] Figure 2 The figure is a schematic diagram of the structure of a novel combined parallel conversion power supply module of the present invention.

[0025] Figure 3 The diagram is a schematic diagram of the array structure of a novel combined parallel conversion power supply module of the present invention.

[0026] Figure 4 The schematic diagram of the circuit structure of a novel combined parallel conversion power supply module control method of the present invention.

[0027] In the figure: 1. Plug-in box; 2. Parallel conversion power supply; 3. Battery fuse; 4. Battery connector female terminal; 5. AC input switch; 6. DC output switch; 7. Power communication PCB board; 8. Battery signal plug-in terminal; 9. Battery; 10. Power cable; 11. Module array rack. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] like Figure 1-4 A novel combined parallel conversion power supply module shown includes:

[0030] A plug-in box 1, wherein the plug-in box 1 has a power supply unit and a connection unit;

[0031] A parallel conversion power supply 2, the parallel conversion power supply 2 is placed in the power supply unit and is electrically connected to the parallel conversion power supply 2 connection end;

[0032] A battery fuse 3, wherein the battery fuse 3 is fixedly connected to the plug box 1 at the connection portion;

[0033] A battery connector female terminal seat 4 , wherein the battery connector female terminal seat 4 is fixedly connected to the battery fuse 3 .

[0034] The connecting portion is also fixed with an input / output public terminal of the parallel conversion power supply 2 , and the input / output public terminal of the parallel conversion power supply 2 is electrically connected to the parallel conversion power supply 2 .

[0035] The connection portion is further provided with an AC input switch 5 and a DC output switch 6 , and the AC input switch 5 and the DC output switch 6 are fixedly connected to the plug box 1 .

[0036] Wherein, it also includes a power communication PCB board 7, and the power communication PCB board 7 is fixed to the outer wall of the power supply unit.

[0037] It also includes a battery signal plug-in terminal 8 , which is assembled on the connecting portion and detachably connected to the plug-in box 1 .

[0038] Among them, the battery fuse 3, the battery signal plug-in terminal 8, the battery connector female terminal 4, the AC input switch 5 and the AC input are all located on the same surface of the connecting part, and the parallel conversion power supply, input switch, output switch and fuse are integrated into a design to reduce a large amount of secondary wiring, realize pre-production and integrated maintenance, and save a lot of production and maintenance costs.

[0039] Among them, it also includes a battery 9, and the battery connector female terminal seat 4 has a battery connector positive female terminal seat and a battery connector negative female terminal seat. The battery connector positive female terminal seat and the battery connector negative female terminal seat are electrically connected to the battery 9 through power cables 10 respectively. The two power cables 10 are of equal length. The module and the battery are in a one-to-one mode. The wires from all batteries to the parallel conversion power supply are cables of equal length, which can achieve the same discharge efficiency of the batteries under the same load.

[0040] Wherein, the AC input switch 5 is connected to an AC power source.

[0041] It also includes a module array rack 11 for placing multiple parallel conversion power supply 2 modules side by side to form an array. The parallel conversion power supply 2 is equipped with an intelligent circuit to monitor and control the AC / DC circuit and DC / DC converter in the parallel conversion power supply 2.

[0042] refer to Figure 4 , and also provides a novel combined parallel conversion power supply control method, characterized in that it includes the following steps:

[0043] Connect the module to the AC power supply and battery through the AC input switch and fuse respectively, and determine whether the AC power supply is working normally;

[0044] When the AC power supply is normal, the internal bus voltage is formed by the AC / DC circuit in the parallel conversion power supply. This bus voltage provides energy for the output converter DC / DC and the charging converter DC / DC at the same time. The output converter DC / DC generates a DC220V or DC110V or DC48V bus voltage, which is output through the DC output switch. The charging converter DC / DC outputs to charge the 12V battery. At the same time, another boost DC / DC converter provided by the battery connection is in standby mode.

[0045] When the AC power fails, the boost DC / DC converter connected to the battery continuously bears the output load, allowing the components to switch to the battery power supply without interruption.

[0046] The parallel DC power supply technology is a new technology designed to solve the problems of battery connection structure and operation and maintenance. This technology has the advantages of single-cell open-circuit DC power supply system not exiting operation, batteries of different production times and different brands can be mixed and used, and automatic online full capacity verification. As a cutting-edge technology, station power supplies in many regions have used it in fully modular intelligent AC / DC integrated power supply systems. The conventional "distributed" installation method no longer meets the full modular requirements of technical specifications, that is, it is inconsistent with the overall technology of smart substations; the production method of existing technology requires the cabinet to be produced before the parallel conversion power supply, input switch, output switch and fuse and other electrical components can be installed. Each electrical component is "distributed" and installed in the panel cabinet. According to their respective installation positions, power cables and signal cables are processed and manufactured, and non-equal lengths are laid. In addition, there are not only many primary lines, secondary lines and communication lines, but also they are all open-wire installations, which affects the appearance and production cannot be done in advance. On the other hand, the connection lines between the parallel conversion power supply and the battery in the same cabinet are inconsistent in length, which will lead to different discharge efficiencies of the batteries under the same load. In addition, the "distributed" installation method is uncertain and difficult to standardize. Many primary and secondary lines are bundled together, which is very inconvenient for maintenance. Figure 1 And attached Figure 2 The module is a new module formed by assembling a parallel conversion power supply, a parallel conversion power supply communication PCB board, an AC input switch, a DC output switch, a positive / negative connector, a fuse, and a battery signal plug-in terminal in a plug-in box; the input / output male terminal of the parallel conversion power supply is fixed on the plug-in box, which can realize the rapid plug-in and pull-out of the parallel conversion power supply; the female terminal seat of the battery connector is fixed on the fuse, and the female terminal seat of the battery signal is fixed on the plug-in box, which can realize the rapid connection and disconnection of the battery; as shown in the attached Figure 2 And attached Figure 3 , the modules and batteries are managed in an array-type one-to-one mode, using standardized equal-length power cables and signal cables for connection, and standardizing the installation and wiring process; as shown in the attached Figure 4The module is connected to the AC power supply and the battery on the AC input switch and the fuse respectively. When the AC is normal, the internal bus voltage is formed by the AC / DC circuit in the parallel conversion power supply. This bus voltage provides energy for the output converter DC / DC and the charging converter DC / DC at the same time. The output converter DC / DC generates a DC220V or DC110V or DC48V bus voltage, which is output through the DC output switch; the charging converter DC / DC output charges the 12V battery, and at the same time, another boost DC / DC converter provided by the battery connection is in standby mode. When the AC power fails, the boost DC / DC converter connected to the battery continuously bears the output load, so that the component can achieve uninterrupted switching to the battery power supply. Each parallel conversion power supply has an intelligent circuit to monitor and control the AC / DC circuit and DC / DC converter in the component, accurately control the battery components to work in their corresponding states, communicate with the monitor of the entire system, accept system instructions, and use modular and standardized design ideas to achieve advance pre-production, small size, light weight, and flexible configuration. It is mainly used in DC systems to shorten the production time of DC system cabinets, beautify the cabinet layout of the cabinet group, and improve the efficiency of DC system cabinet manufacturers.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A novel combined parallel conversion power supply module, characterized in that: include: A plug-in box, the plug-in box having a power supply unit and a connection unit; A parallel conversion power supply, which is disposed in the power supply unit and is electrically connected to the parallel conversion power supply connection terminal; A battery fuse, wherein the battery fuse is fixedly connected to the plug box at the connecting portion; A battery connector female terminal seat, wherein the battery connector female terminal seat is fixedly connected to the battery fuse; The connecting portion is also fixed with a parallel conversion power supply input / output male terminal, and the parallel conversion power supply input / output male terminal is electrically connected to the parallel conversion power supply; It also includes a module array frame for arranging a plurality of parallel conversion power supply modules for installation in parallel to form an array. The parallel conversion power supply is provided with an intelligent circuit for monitoring and controlling the AC / DC circuit and DC / DC converter in the parallel conversion power supply.

2. A novel combined parallel conversion power supply module according to claim 1, characterized in that: The connecting portion is further provided with an AC input switch and a DC output switch, and the AC input switch and the DC output switch are fixedly connected to the plug box.

3. A novel combined parallel conversion power supply module according to claim 2, characterized in that: It also includes a power communication PCB board, and the power communication PCB board is fixed to the outer wall of the power supply unit.

4. A novel combined parallel conversion power supply module according to claim 3, characterized in that: It also includes a battery signal plug-in terminal, which is assembled on the connecting portion and detachably connected to the plug-in box.

5. A novel combined parallel conversion power supply module according to claim 4, characterized in that: The battery fuse, the battery signal plug-in terminal, the battery connector female terminal seat, the AC input and the AC input switch are all located on the same surface of the connecting portion.

6. A novel combined parallel conversion power supply module according to claim 5, characterized in that: It also includes a storage battery, wherein the battery connector female terminal seat has a battery connector positive female terminal seat and a battery connector negative female terminal seat, the battery connector positive female terminal seat and the battery connector negative female terminal seat are electrically connected to the storage battery through power cables respectively, and the two power cables are of equal length.

7. A novel combined parallel conversion power supply module according to claim 6, characterized in that: The AC input switch is connected to an AC power source.

8. A novel combined parallel conversion power supply control method, using the novel combined parallel conversion power supply module as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Connect the module to the AC power supply and battery through the AC input switch and fuse respectively, and determine whether the AC power supply is working normally; When the AC power supply is normal, the internal bus voltage is formed by the AC / DC circuit in the parallel conversion power supply. This bus voltage provides energy for the output converter DC / DC and the charging converter DC / DC at the same time. The output converter DC / DC generates a DC220V or DC110V or DC48V bus voltage, which is output through the DC output switch. The charging converter DC / DC outputs to charge the 12V battery. At the same time, another boost DC / DC converter provided by the battery connection is in standby mode. When the AC power fails, the boost DC / DC converter connected to the battery continuously bears the output load, allowing the components to switch to the battery power supply without interruption.

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