Energy storage battery box power supply system

Abstract

The utility model discloses an energy storage battery box power supply system which comprises a battery box and an external power supply, a power supply device and a power supply loop are arranged in the battery box, the first end of the power supply device is connected with the power supply loop, and the second end of the power supply device is connected with the external power supply; the power supply device is used for converting rated voltage of an external power supply into target voltage to supply power to a load in the battery box. According to the invention, the technical problem of low power supply quality caused by large load power supply voltage drop in the battery box in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage batteries, and in particular to an energy storage battery box power supply system. Background Art

[0002] In the current related technologies, the energy storage battery box usually draws a 230V AC power supply from the auxiliary power supply circuit and a 1500V power supply from the battery module, which are led to the power board assembly. The power board assembly converts the 1500V voltage into 24V voltage to power the 24V load in the battery box. At the same time, a power supply is drawn from the fire power supply in the customized power supply or LC cabinet (the aggregation cabinet for auxiliary power supply, distribution and communication of the battery box in the energy storage system) to power the 24V fire load in the battery box. The voltage drop is very large, resulting in the inability to guarantee the power quality.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Utility Model Content

[0004] An embodiment of the present application provides an energy storage battery box power supply system to at least solve the problem in the related art that a large load supply voltage drop in the battery box results in low power supply quality.

[0005] According to one aspect of an embodiment of the present application, there is provided a power supply system for an energy storage battery box, comprising: a battery box, wherein a power supply device and a power supply circuit are arranged in the battery box, the input end of the power supply device is connected to the power supply circuit, and the input end of the power supply device is connected to an external power supply; the output end of the power supply device is connected to a fire load and a non-fire load in the battery box, and the power supply device is used to convert the rated voltage of the external power supply into a target voltage to power the fire load and the non-fire load in the battery box.

[0006] Optionally, the power supply device includes: a battery pack and a mutual investment device, the first end of the mutual investment device is connected to the external power supply, the second end of the mutual investment device is connected to the battery pack, and the third end of the mutual investment device is connected to the load, and the mutual investment device is used to switch the circuit when the external power supply is disconnected, so that the battery pack can power the fire load and the non-fire load.

[0007] Optionally, the external power supply is connected to the mutual investment device through a first switch, and the external power supply is connected to the battery pack through a second switch, wherein when the first switch and the second switch are both closed, the external power supply is used to power the load and the battery pack, and when the first switch and the second switch are both disconnected, the battery pack is used to power the fire load and the non-fire load.

[0008] Optionally, the power supply device also includes: a charging module and an inverter, the charging module is respectively connected to the external power supply, the inverter and the battery pack, and is used to charge the battery pack, and the inverter is respectively connected to the battery pack and the mutual investment device, and is used to convert the DC voltage output by the battery pack into an AC voltage.

[0009] Optionally, the battery box further includes: a connection terminal, one end of which is connected to the power supply device, and the other end of which is connected to the fire-fighting load and the non-fire-fighting load respectively.

[0010] Optionally, an external power source is connected to the power supply circuit to supply power to the power supply circuit.

[0011] Optionally, the external power supply includes multiple power supplies, and the multiple power supplies are respectively connected to the power supply device.

[0012] Optionally, a switching switch is also provided in the battery box, one end of the switching switch is connected to the power supply device, and the other end of the switching switch is respectively connected to the power supply circuit and the multiple power supplies to form multiple power supply lines, and the switching switch is used to switch the power supply lines.

[0013] Optionally, it includes: a communication module and a host computer, wherein the communication module is connected to the power supply device and the host computer respectively, and is used to obtain the operating status of the power supply device and upload the operating status to the host computer.

[0014] Optionally, the communication module is connected to the battery pack and the first switch respectively, and is used to obtain the power level of the battery pack and the opening and closing information of the first switch, and the opening and closing information is used to indicate whether the external power supply is disconnected.

[0015] In an embodiment of the present application, a battery box is used, in which a power supply device and a power supply circuit are provided, the input end of the power supply device is connected to the power supply circuit, and the input end of the power supply device is connected to an external power supply; the output end of the power supply device is connected to the fire load and the non-fire load in the battery box, and the power supply device is used to convert the rated voltage of the external power supply into a target voltage to supply power to the fire load and the non-fire load in the battery box. By providing a power supply device in the battery box to connect the external power supply and the load, the power supply device is used to convert the voltage into a target voltage to supply power to the fire load and the non-fire load in the battery box, thereby reducing the voltage drop when the external power supply outputs the voltage to the battery box, thereby achieving the technical effect of improving the power supply quality, thereby solving the problem of low power supply quality caused by a large load supply voltage drop in the battery box in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the structure of a power supply system of an energy storage battery box according to an embodiment of the present application;

[0018] Figure 2 is a schematic diagram of the structure of a power supply device according to an embodiment of the present application;

[0019] Figure 3 It is a structural schematic diagram of another energy storage battery box power supply system according to an embodiment of the present application. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] Since the load in the battery box in the related art suffers from power quality problems due to excessive voltage drop when being powered, in order to solve the problems in the related art, an energy storage system is provided in an embodiment of the present application, which is described in detail below.

[0023] Figure 1 is a structural schematic diagram of an energy storage battery box power supply system according to an embodiment of the present application, such as Figure 1 As shown, the energy storage battery box power supply system includes:

[0024] A battery box 20 and an external power supply 30, wherein a power supply device 201 and a power supply circuit 202 are provided in the battery box 20, wherein the input end of the power supply device 201 is connected to the power supply circuit 202, and the input end of the power supply device 201 is connected to the external power supply 30; the output end of the power supply device is connected to the fire load 212 and the non-fire load 213 in the battery box. It can be understood that the power supply device 201 is mainly used to convert the rated voltage of the external power supply 30 into a target voltage to power the fire load 212 and the non-fire load 213 in the battery box 20.

[0025] It should be noted that the external power supply 30 can directly output the rated voltage to the power supply device 201, and the voltage device 201 completes the voltage conversion. It is not necessary for the external power supply 30 to directly output the target voltage that is the same as the working voltage of the fire load 212 and the non-fire load 213 in the battery box 20. For example, the target voltage is 24V, and the rated voltage of the external power supply is 230V. It can be understood that under the same power distribution distance, the voltage drop of 230V is much smaller than the voltage drop of 24V. In some embodiments of the present application, fire load: refers to the power load related to the fire protection system, including but not limited to fire pumps, fire alarm systems, fire elevators, fire lighting, fire smoke exhaust systems, etc. Non-fire load: refers to other power loads other than fire loads, such as lighting, air conditioning, elevators (non-fire elevators), and office equipment levels.

[0026] It should also be noted that the load capacity of the power supply device 201 can be selected according to actual needs, which is different from the related art that uses a power board component for power supply and is limited by the rated load capacity.

[0027] like Figure 2 As shown, the power supply device 201 includes: a battery pack 204 and a mutual investment device 205, the first end of the mutual investment device 205 is connected to the external power supply 30, the second end of the mutual investment device 205 is connected to the battery pack 204, and the third end of the mutual investment device 205 is connected to the load 203. The mutual investment device 205 is used to switch the circuit when the external power supply is disconnected, so that the battery pack 204 can supply power to the fire load 212 and the non-fire load 213.

[0028] The external power supply 30 is connected to the mutual investment device 205 through the first switch 206, and the external power supply 30 is connected to the battery pack 204 through the second switch 207, wherein when the first switch 206 and the second switch 207 are both closed, the external power supply 30 is used to power the load 203 and the battery pack 204, and when the first switch 206 and the second switch 207 are both disconnected, the battery pack 204 is used to power the fire load 212 and the non-fire load 213.

[0029] In actual application scenarios, when the external power supply 30 is disconnected, the battery pack 204 can be switched to power the load 203. When the external power supply 30 is normally input, the external power supply 30 powers the fire load 212 and the non-fire load 213 while charging the battery pack 204.

[0030] like Figure 2 As shown, the power supply device also includes: a charging module 209 and an inverter 210, the charging module 209 is respectively connected to the external power supply 30, the inverter 210 and the battery pack 204, and is used to charge the battery pack 204, and the inverter 210 is respectively connected to the battery pack 204 and the mutual investment device 205, and is used to convert the DC voltage output by the battery pack 204 into an AC voltage.

[0031] like Figure 3 As shown, the battery box 20 also includes: a connection terminal 211, one end of which is connected to the power supply device 201, and the other end of which is connected to the fire load 212 and the non-fire load 213 in the load 203.

[0032] The external power source 30 is connected to the power supply circuit 202 to supply power to the power supply circuit 202 .

[0033] In some embodiments of the present application, the external power supply 30 includes a plurality of power supplies 301 , and the plurality of power supplies 301 are respectively connected to the power supply device 201 .

[0034] like Figure 3 As shown, a switching switch (not shown in the figure) is also provided in the battery box 20, one end of the switching switch is connected to the power supply device, and the other end of the switching switch is respectively connected to the power supply circuit 202 and the multiple power supplies 301 to form multiple power supply lines, and the switching switch is used to switch the power supply lines.

[0035] Taking multiple power supplies 301 as an example, which are LC power supply cabinets and customized power supplies, a 230V power supply is input to the power supply device 201 by the customized power supply, LC cabinet, and power supply circuit 202. When the external power supply 30 is not disconnected, the power supply device 201 directly converts 230V into 24V to directly power the 24V load 203 in the box, and the battery pack 204 is in a charging state. When the external power supply 30 is disconnected, the battery pack 204 is in a discharging state, and supplies power to the fire load 212 and the non-fire load 213.

[0036] In some embodiments of the present application, a communication module (not shown in the figure) and a host computer (not shown in the figure) may also be added to the battery box power supply system. The communication module is connected to the power supply device 201 and the host computer, respectively, for obtaining the operating status of the power supply device 201 and uploading the operating status to the host computer.

[0037] The communication module is connected to the battery pack 204 and the first switch 206 respectively, and is used to obtain the power of the battery pack and the opening and closing information of the first switch, wherein the opening and closing information is used to indicate whether the external power supply is disconnected.

[0038] It should be noted that the operating status includes at least: the remaining capacity of the battery and the health of the battery.

[0039] In other embodiments of the present application, emergency lighting equipment may be provided inside the battery box and powered by the battery pack 204 .

[0040] The battery box power supply system provided by the present application can reduce the voltage drop and improve the power supply quality under the condition of the same power distribution distance; the load capacity of the power supply device is optional, and the load capacity is much larger than the power board assembly; because the power supply device has its own battery, when the input power is disconnected, important loads such as communication in the battery box can continue to work; the power supply scheme is more abundant, the input power of the power supply device can be taken from the power supply circuit or from an external power supply, and it supports direct input of 24V voltage from an external power supply; the integration of power supply and communication is higher; the AC emergency lighting used in the battery box is replaced with DC, which not only solves the problem of virtual flash, but also improves its power supply reliability (it can continue to work when the external power supply is disconnected).

[0041] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0042] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0043] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0044] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0045] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0046] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of each embodiment method of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0047] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An energy storage battery box power supply system, characterized in that: include: A battery box, wherein a power supply device and a power supply circuit are arranged in the battery box, the input end of the power supply device is connected to the power supply circuit, and the input end of the power supply device is connected to an external power supply; the output end of the power supply device is connected to a fire load and a non-fire load in the battery box, and the power supply device is used to convert the rated voltage of the external power supply into a target voltage to power the fire load and the non-fire load in the battery box.

2. The energy storage battery box power supply system according to claim 1, characterized in that: The power supply device includes: a battery pack and a mutual investment device, wherein the first end of the mutual investment device is connected to the external power supply, the second end of the mutual investment device is connected to the battery pack, and the third end of the mutual investment device is connected to the load. The mutual investment device is used to switch the circuit when the external power supply is disconnected, so that the battery pack can power the fire load and the non-fire load.

3. The energy storage battery box power supply system according to claim 2, characterized in that: The external power supply is connected to the mutual investment device through a first switch, and the external power supply is connected to the battery pack through a second switch, wherein when the first switch and the second switch are both closed, the external power supply is used to power the load and the battery pack, and when the first switch and the second switch are both disconnected, the battery pack is used to power the fire load and the non-fire load.

4. The energy storage battery box power supply system according to claim 3, characterized in that: The power supply device also includes: a charging module and an inverter. The charging module is respectively connected to the external power supply, the inverter and the battery pack for charging the battery pack. The inverter is respectively connected to the battery pack and the mutual investment device for converting the DC voltage output by the battery pack into an AC voltage.

5. The energy storage battery box power supply system according to claim 1, characterized in that: The battery box also includes: a connection terminal, one end of which is connected to the power supply device, and the other end of which is connected to the fire-fighting load and the non-fire-fighting load respectively.

6. The energy storage battery box power supply system according to claim 1, characterized in that: The external power source is connected to the power supply circuit to supply power to the power supply circuit.

7. The energy storage battery box power supply system according to claim 1, characterized in that: The external power source includes a plurality of power sources, and the plurality of power sources are respectively connected to the power supply device.

8. The energy storage battery box power supply system according to claim 7, characterized in that: A switching switch is also provided in the battery box, one end of the switching switch is connected to the power supply device, and the other end of the switching switch is respectively connected to the power supply circuit and the multiple power supplies to form multiple power supply lines. The switching switch is used to switch the power supply lines.

9. The energy storage battery box power supply system according to claim 8, characterized in that: include: A communication module and a host computer, wherein the communication module is connected to the power supply device and the host computer respectively, and is used to obtain the operating status of the power supply device and upload the operating status to the host computer.

10. The energy storage battery box power supply system according to claim 9, characterized in that: The communication module is connected to the battery pack and the first switch respectively, and is used to obtain the power of the battery pack and the opening and closing information of the first switch, wherein the opening and closing information is used to indicate whether the external power supply is disconnected.

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