Split type emergency power supply system

Abstract

The utility model provides a split type emergency power supply system, which relates to the technical field of electric power auxiliary equipment, is mainly applied to emergency power supply scenes, and comprises a high-voltage box body and a battery module, the high-voltage box body is of a draw-bar box type structure, and a bidirectional inverter, a fuse, an air cooling device, parallel poles and an output unit are arranged in the high-voltage box body; the battery module is a storage battery energy storage unit and comprises a shell, an electric power interface and a data interface, a BMS battery management system and a battery module are arranged in the shell, the number of the battery module is larger than or equal to 1, the split type structure can meet the emergency power utilization scene and freely match the needed electric quantity, outdoor carrying, loading and transporting can be facilitated, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of power auxiliary equipment, in particular to a split-type emergency power supply system. Background Art

[0002] In modern society, the stable operation of power systems is crucial for every industry. However, with the continuous expansion of power-consuming equipment, power outages can occur due to natural disasters, human error, and other factors. To ensure the normal operation of critical equipment and systems, emergency power supply systems have emerged. Traditional emergency power supply systems typically utilize an all-in-one design, integrating the power module, battery module, and control module into a single chassis. This increases in weight with the amount of stored power, making it difficult to transport. However, this design has limitations in terms of maintenance, upgrades, and portability. Therefore, a split emergency power supply system is needed to address these issues. Utility Model Content

[0003] The purpose of the present utility model is to provide a split emergency power supply system to solve the technical problems in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a split emergency power supply system, comprising a high-voltage box and a battery module, wherein the high-voltage box is a drawbar box structure with a built-in inverter, a fuse, an air cooling device, a parallel pole and an output unit; the inverter is provided with a fan, an AC interface, and a DC interface, and the parallel poles are connected in parallel between two adjacent groups of battery module boxes; the battery module is a battery energy storage unit, comprising a battery module box, a battery module cover, a power interface, and a data interface; a BMS battery management system, a relay, and a battery module are provided in the battery module box 14; the number of the battery modules is ≥1, and the battery module box is arranged in the high-voltage box;

[0005] The inverter is connected to the BMS battery management system on one hand and the output unit on the other hand;

[0006] The output unit is connected to an external load or a 220V AC power supply.

[0007] Furthermore, the BMS battery management system peripheral detection port and debugging port.

[0008] Furthermore, the inverter is a pure sine wave inverter with bidirectional current conversion, used for conversion between AC port and DC port.

[0009] Furthermore, the output unit is an AC port or a DC port.

[0010] Further, a display screen, a power switch, a 220V AC power interface, a UBS interface, and a Type-C interface are provided on the front of the high-voltage box body. The inverter is connected to the display screen; the AC interface of the inverter is electrically connected to the 220V AC interface.

[0011] Further, a ventilation port is provided on the side of the high-voltage box body, and universal wheels are provided at the bottom.

[0012] Further, a handle is also provided above the battery module box body.

[0013] Further, a battery module and a BMS battery control system are also provided inside the battery module box body. The BMS battery control system includes a BMS main board and BMS slave boards, and the number of BMS slave boards ≥ 0.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The split structure of the present utility model can not only solve the problem of power failure of important equipment, but also facilitate outdoor carrying. It can also be used for power replenishment and endurance of new energy vehicles and various rescue scenarios, with a wider range of applications.

[0015] The present utility model uses the commercial power (industrial frequency alternating current AC) as the input power source, and charges the battery module through an inverter. After connecting to 220V AC power, the alternating current is converted into direct current through a bidirectional inverter and then charges the battery module. After the system reaches the preset voltage level, the BMS controls the input power source and strictly prohibits continued charging of the battery module to avoid excessive voltage of a single cell, which may cause the cell to bulge and thermal runaway. While ensuring the service life of the battery module, it also avoids the occurrence of safety accidents. The BMS battery management system is used to protect the battery module against overcharge at high voltage, over-discharge at low voltage, over-temperature, over-current, and short circuit. The output unit can provide power to the electrical load or charge the battery module; during discharge, the bidirectional inverter can reversely convert direct current into 220V alternating current, and at the same time, it will also convert part of the direct current into low-voltage direct current to provide DC output for the UBS DC output interface and the Type-C DC output interface, so that the cooperation mode of the high-voltage box body and the battery module makes the emergency power supply system more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a 3D structural schematic diagram of the high-voltage box in a split-type emergency power supply system of the present utility model;

[0017] Figure 2 It is a 3D structural schematic diagram of an embodiment of a split-type emergency power supply system of the present utility model;

[0018] Figure 3 It is a 3D structural schematic diagram of another embodiment of a split-type emergency power supply system of the present utility model;

[0019] Figure 4 Schematic diagram of the inverter unit structure in the high-voltage box of a split-type emergency power supply system of the present utility model;

[0020] Figure 5 3D structure diagram of the battery module box in a split-type emergency power supply system of the present utility model;

[0021] Figure 6 Another 3D structure diagram of the battery module box in a split-type emergency power supply system of the present utility model;

[0022] Figure 7 3D structure diagram of the output module in a split-type emergency power supply system of the present utility model;

[0023] Figure 8 Another 3D structure diagram of the output module in a split-type emergency power supply system of the present utility model;

[0024] Figure 9 3D structure diagram of the battery module in a split-type emergency power supply system of the present utility model;

[0025] Figure 10 Schematic diagram of the circuit in the charging state of a split-type emergency power supply system of the present utility model;

[0026] Figure 11 Schematic diagram of the circuit in the discharging state of a split-type emergency power supply system of the present utility model. [[ID=3i]]

[0027] In the figure: 1 - High-voltage box part; 2 - First battery module; 3 - Second battery module; 4 - Third battery module; 5 - Fourth battery module; 6 - Fifth battery module; 7 - Ventilation opening; 8 - Parallel pole; 9 - Universal wheel; 10 - Fan; 11 - AC interface; 12 - DC interface; 13 - Inverter; 14 - Battery module box; 15 - Data interface; 16 - Power interface; 17 - Power switch; 18 - USB DC output interface; 19 - Type-C DC output interface; 20 - 220V AC interface; 21 - Display screen; 22 - Handle; 23 - Battery module group; 24 - Battery module cover; 25 - Relay; 26 - Pull rod. Specific embodiments

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0029] It should be noted that there is a misspelling in the original text where "3i" should probably be "31". The above translation has been corrected accordingly.In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] Embodiment 1: As Figures 1-11As shown in the figure, the present utility model provides a split-type emergency power supply system, including a high-voltage box body 1 and a battery module. The high-voltage box body 1 is in the structure of a trolley case, and is internally provided with an inverter 13, a fuse, an air-cooling device, a parallel pole 8 and an output unit; a fan 10, an AC interface 11 and a DC interface 12 are arranged on the inverter 13. The battery module includes a first battery module 2, a second battery module 3, a third battery module 4, a fourth battery module 5 and a fifth battery module 6. The parallel pole 8 is connected in parallel between adjacent two groups of battery modules. The battery module is a battery energy storage unit. A battery module box body 14, a battery module cover plate 24, a power interface 16 and a data interface 15 are arranged outside the battery module. A BMS battery management system, a relay 25 and a battery module 23 are arranged inside the battery module box body 14. The number of battery modules is ≥1, and the battery module can be quickly assembled and disassembled with the high-voltage box body; the inverter 13 is connected to the BMS battery management system on one hand and the output unit on the other hand; the output unit is connected to an external load or a 220V AC power supply; the inverter 13 is a pure sine wave inverter, with bidirectional power conversion, and is used for conversion between an AC port and a DC port; the output unit has two types of ports, namely AC and DC; a display screen 21, a power switch 17, a 220V AC interface 20, a UBS interface 18 and a Type-C interface 19 are arranged on the front of the outside of the high-voltage box body 1. The inverter 13 is connected to the display screen 21; the AC interface of the inverter 13 is electrically connected to the 220V AC interface 20; a ventilation port 7 is arranged on the side of the outside of the high-voltage box body 1, and universal wheels 9 are arranged at the bottom; a handle 22 is further arranged above the battery module box body 14; a BMS battery control system is further arranged inside the battery module. The BMS battery control system internally has a BMS main board and BMS slave boards, and the number of BMS slave boards is ≥0.

[0033] The technical effect of this embodiment is as follows:

[0034] The first battery module 2 is used for storing and outputting electric energy of the system, and protecting the split-type emergency power supply system to ensure the safety of equipment and electricity use;

[0035] The second battery module 3 to the fifth battery module 6 are used for expanding the storage and output of electric energy, and cooperating with the first battery module 2 to protect the system;

[0036] The ventilation port 7 is used as an exchange channel for the air inside the high-voltage box body 1 and the outside air, and together with the fan 10, it reduces the temperature inside the high-voltage box body 1;

[0037] The parallel pole 8 is used for the electrical connection between the battery module and the high-voltage box body 1;

[0038] The universal wheels 9 are used for the convenient transportation of the entire emergency power supply system;

[0039] The inverter 13 is a pure sine wave inverter with bidirectional power conversion and is used for power transmission conversion between the AC port and the DC port in the emergency power supply system.

[0040] The battery module box 14 houses the first to fifth battery modules 2 - 5, and the battery module cover plate 24 serves as their unified cover plate.

[0041] The battery module 23 is equipped with a BMS main board or a BMS main board. The installation position of the battery module 23 where the BMS main board is located on the high - voltage box 1 is irreplaceable, while the installation position of the battery module 23 where the BMS slave board is located on the high - voltage box 1 can be replaced.

[0042] When the power switch 17 is turned off, the display screen 21 is in the off state. At this time, after the AC 220V power is connected to the 220V AC interface 20 and the power switch 17 is turned on, the display screen 21 lights up. The BMS main board inside the first battery module 2 starts to detect the status of all battery modules. After there are no over - voltage, over - temperature, low - temperature, short - circuit, or open - circuit faults, the display screen 21 shows the remaining power value of the system, displays the current system input and output voltages and currents, and classifies and displays them by AC and DC. Then, the BMS main board inside the first battery module 2 issues a charging command, and the inverter 13 starts to work, converting 220V AC power into DC power to charge each battery module to the set voltage. When the BMS main board inside the first battery module 2 detects the status of all battery modules and there are over - voltage, over - temperature, low - temperature, short - circuit, or open - circuit faults, the system needs to perform load discharge, natural cooling, external heating, and have a professional check the circuit to solve the problem. Then, the BMS main board inside the first battery module 2 performs the detection again. After the BMS main board detects an abnormal state, it can be transmitted to the corresponding APP management platform through BMS Bluetooth or 4G network. At this time, the user cannot charge / discharge, so that people know this situation.

[0043] When the emergency power supply system supplies power to the outside, the external load is connected to the corresponding 220V AC interface 20, UBS DC output interface 18, and Type - C DC output interface 19 separately or simultaneously. At this time, the inverter 13 converts the electrical energy stored in the battery module 23 from DC to AC and outputs it to the 220V AC interface 20. At the same time, part of the electrical energy is stepped down from high - voltage DC to low - voltage DC and output to the UBS DC output interface 18 and Type - C DC output interface 19, so as to meet the power consumption needs of various loads.

[0044] For special power consumption scenarios with high power demand and difficult handling, after turning off the power switch 17, the system can be disassembled into a high-voltage box 1 and multiple battery modules. After being loaded onto a vehicle for use or transported separately to the target location, the battery modules are then installed in their corresponding positions, and the data cable is connected to the data interface 15. When installing the battery modules, the power interface 16 at their bottom is in a safe state. To avoid short circuits, the relay 25 connected to the power interface 16 is separated at this time. When the power switch 17 is turned on, after the BMS inside the battery module detects the load inverter, the relay 25 is attracted. After the system has no fault alarm, the system starts to supply power.

[0045] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A split-type emergency power supply system, comprising a high-voltage box body and a battery module, characterized in that: The high-voltage box body is of a pull rod box structure, and is internally provided with an inverter, a fuse, an air cooling device, parallel poles and an output unit; the battery modules are divided into a first battery module, a second battery module, a third battery module, a fourth battery module and a fifth battery module. The inverter is provided with a fan, an AC interface and a DC interface. The parallel poles are connected in parallel between adjacent two groups of battery modules. The battery module is a battery energy storage unit, including a battery module box body, a battery module cover plate, a power interface and a data interface. The battery module box body is internally provided with a BMS battery management system, a relay and battery modules. The number of battery modules ≥ 1, and the battery module box body is arranged in the high-voltage box body; The inverter is connected to the BMS battery management system on one hand and the output unit on the other hand; The output unit is connected to an external load or a 220V AC power supply.

2. The split-type emergency power supply system according to claim 1, wherein: The BMS battery management system is externally provided with a detection port and a debugging port.

3. The split-type emergency power supply system according to claim 1, characterized in that: The inverter is a pure sine wave inverter with bidirectional power conversion, and is used for conversion between the AC port and the DC port.

4. A split-type emergency power supply system according to claim 1, characterized in that: The output unit is of two types of ports, namely AC and DC.

5. The split-type emergency power supply system according to claim 1, wherein: On the front of the outside of the high-voltage box body, there are a display screen, a power switch, a 220V AC interface, a UBS interface and a Type-C interface. The inverter is connected to the display screen; the AC interface of the inverter is electrically connected to the 220V AC interface.

6. The split-type emergency power supply system according to claim 1, wherein: On the side of the outside of the high-voltage box body, there is a ventilation port, and universal wheels are arranged at the bottom.

7. The split-type emergency power supply system according to claim 1, characterized in that: A handle is further arranged above the battery module box body.

8. The split-type emergency power supply system according to claim 1, characterized in that: The battery module box body is further internally provided with battery modules and a BMS battery control system. The BMS battery control system internally has a BMS main board and BMS slave boards, and the number of BMS slave boards ≥ 0.

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