Fire-fighting standby power system

Abstract

The utility model relates to the technical field of power supplies, and discloses a fire-fighting standby power system, which comprises an energy storage all-in-one machine used for outputting electric energy and a charging signal when power is available and outputting a discharging signal when no power is available; the charging module is connected with the energy storage all-in-one machine, and the charging module is used for receiving the charging signal, adjusting the electric energy of the energy storage all-in-one machine and outputting the adjusted electric energy; the energy storage module is connected with the charging module and is used for receiving and storing the adjusted electric energy; and the discharging module is respectively connected with the energy storage module and the energy storage all-in-one machine, and the discharging module is used for receiving the discharging signal and transmitting the electric energy stored in the energy storage module to the energy storage all-in-one machine. The problem of high cost of a BMS system in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery management, in particular to a fire protection backup power system. Background Art

[0002] With the rapid development of the energy sector, energy storage technology has become a key means of solving energy problems. However, with the widespread application of energy storage equipment, safety issues have gradually become prominent. Fire safety is a key factor in ensuring the normal operation of energy storage systems. The battery management system (BMS) monitors battery status, such as temperature, voltage, current, and state of charge, and provides communication interfaces and protection for the batteries. This system enables comprehensive control and protection of the energy storage battery stack, ensuring the reliability and safety of the battery system. Therefore, backup power for the BMS system in energy storage devices is particularly important.

[0003] Traditional fire protection backup power systems use UPS (uninterruptible power supply) power supply, which connects the external 220V power supply to the UPS module, and then the UPS converts it to 24V through the energy storage system power module to supply power to the fire protection. This method is not only costly but also difficult to operate and maintain. Utility Model Content

[0004] In view of this, the present invention provides a fire protection backup power system to solve the problem of high cost of BMS system in the prior art.

[0005] In a first aspect, the present invention provides a fire protection backup power system, the system comprising:

[0006] The integrated energy storage device is used to output electric energy and charging signals when there is power, and output discharge signals when there is no power;

[0007] The charging module is connected to the energy storage device and is used to receive charging signals and output the power of the energy storage device after adjustment;

[0008] An energy storage module, which is connected to the charging module, receives and stores regulated electric energy;

[0009] The discharge module is connected to the energy storage module and the energy storage integrated machine respectively. The discharge module is used to receive the discharge signal and transmit the electric energy stored in the energy storage module to the energy storage integrated machine.

[0010] When the energy storage device has power, the power of the energy storage device is controlled to charge the energy storage module through the charging module. When the energy storage device is powered off, the power of the energy storage module is controlled to provide the energy storage device with power. Thus, the traditional UPS power supply is replaced, which greatly reduces the cost. During maintenance, only the battery module needs to be replaced, which greatly improves the convenience of maintenance system.

[0011] In an optional embodiment, the energy storage integrated device includes a control unit and a power output port, and the charging module includes:

[0012] A first switch unit, the first switch unit is connected to the power output port and the control unit respectively, and is used to receive a charging signal and turn on;

[0013] The charging unit is connected to the first switch unit and the energy storage module respectively, and is used to transmit the electric energy of the energy storage machine to the energy storage module.

[0014] In an optional embodiment, the first switch unit includes:

[0015] A first relay, wherein a control end of the first relay is connected to the control unit, a first end of the first relay is connected to the power output port, and a second end of the first relay is connected to the charging unit.

[0016] In an optional embodiment, the charging unit includes:

[0017] The first step-down unit has a first end connected to the second end of the first relay, and a second end connected to the energy storage module, and is used to perform a first step-down on the electric energy of the energy storage machine and then transmit it to the energy storage module.

[0018] In an optional embodiment, the energy storage device includes a power input port, and the discharge module includes:

[0019] The second switch unit and the first switch unit are respectively connected to the power input port, the energy storage module and the control unit, and are used to receive the discharge signal and turn on.

[0020] In an optional embodiment, the power input port includes a first input port, and the second switch unit includes:

[0021] A second relay, wherein a control end of the second relay is connected to the control unit, a first end of the second relay is connected to the energy storage module, and a second end of the second relay is connected to the first input port.

[0022] In an optional embodiment, the power input port includes a second input port, a third input port, and a fourth input port, and the discharge module further includes:

[0023] The voltage transformation unit is connected to the second input port and the second end of the second relay respectively, and is used to transform the electric energy stored in the energy storage module and transmit it to the second input port, the third input port and the fourth input port respectively.

[0024] In an optional embodiment, the voltage transformation unit includes:

[0025] The second step-down unit is connected to the second input port and the second end of the second relay respectively, and is used for performing a second step-down on the electric energy stored in the energy storage module and then transmitting it to the second input port.

[0026] In an optional embodiment, the voltage transformation unit includes:

[0027] The third step-down unit is connected to the third input port and the second end of the second relay respectively, and is used for performing a third step-down on the electric energy stored in the energy storage module and then transmitting the result to the third input port.

[0028] In an optional embodiment, the voltage transformation unit further includes:

[0029] The fourth step-down unit is connected to the fourth input port and the third step-down unit respectively, and is used for performing a fourth step-down on the electric energy transmitted by the third step-down unit and then transmitting the electric energy to the fourth input port.

[0030] In an optional embodiment, the energy storage module includes:

[0031] A storage battery is connected to the second end of the first step-down unit and the first end of the second relay respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is the structural diagram of the traditional fire protection backup power system;

[0034] Figure 2 This is a structural diagram of a fire protection backup power system according to an embodiment of the present utility model;

[0035] Figure 3 This is a structural diagram of another fire protection backup power system according to an embodiment of the present utility model;

[0036] Figure 4 This is another structural diagram of a fire protection backup power system according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0037] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal connections between two components; they may refer to wireless connections or wired connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] refer to Figure 1 The traditional fire protection backup power system uses UPS (uninterruptible power supply) power supply, which connects the external power supply 220V to the UPS module, and then the UPS converts it into 24V through the power module of the energy storage integrated machine to supply power to the fire protection. This method is not only costly, but also difficult to operate and maintain.

[0042] In this regard, a fire protection backup power system is provided in this embodiment. Figure 2 As shown, the system includes:

[0043] The integrated energy storage device is used to output electric energy and charging signals when there is power, and output discharge signals when there is no power;

[0044] Charging module 10, which is connected to the energy storage device, is used to receive charging signals and adjust the power of the energy storage device before output;

[0045] Specifically, the charging module 10 draws power from the integrated energy storage device, rather than from an external power source. This eliminates the need for an external power source and reduces costs. When the integrated energy storage device is powered and operating normally, the charging module 10 receives a charging signal from the integrated energy storage device and then performs a discharge operation. This means that the charging module 10 draws power from the integrated energy storage device and outputs it to the energy storage module 20. Alternatively, the charging module 10 can be an adapter with a switch or a regulating circuit with a switch.

[0046] Energy storage module 20, which is connected to charging module 10, receives and stores regulated electric energy;

[0047] Specifically, the energy storage module 20 receives and stores the electrical energy regulated by the charging module 10. Thus, the energy storage module 20 stores the electrical energy provided by the integrated energy storage device, eliminating the need for an external power supply. The energy storage module 20 can be a battery stack or a medium for energy storage, including liquid, solid, and gaseous energy storage media. Furthermore, it can include multiple layers of energy storage units, such as primary and secondary energy storage units.

[0048] The discharge module 30 is connected to the energy storage module 20 and the integrated energy storage device respectively. The discharge module 30 is used to receive a discharge signal and transmit the electric energy stored in the energy storage module 20 to the integrated energy storage device.

[0049] Specifically, the discharge module 30 performs a discharge operation after receiving the discharge signal sent by the energy storage device, that is, retransmits the electric energy of the discharge module 30 to the energy storage device. Optionally, the discharge module 30 is specifically provided with a switching device, and the discharge module 30 can also be a power transmission circuit with a switch.

[0050] The fire protection backup power system provided in this embodiment controls the power of the energy storage device to be charged by the charging module when the energy storage device is powered. When the energy storage device is powered off, the power of the energy storage module is controlled to be provided to the energy storage device for use. Thus, the fire protection backup power system replaces the traditional UPS power supply and the traditional external power supply, greatly reducing costs. During maintenance, only the battery module needs to be replaced, which greatly improves the convenience of maintaining the system.

[0051] In some optional embodiments, such as Figure 2 As shown, the energy storage integrated device includes a control unit and a power output port, and the charging module 10 includes:

[0052] A first switch unit, the first switch unit is connected to the power output port and the control unit respectively, and is used to receive a charging signal and turn on;

[0053] Specifically, when the energy storage device detects that there is currently power, it sends a charging signal to the first switch unit. After receiving the charging signal, the first switch unit turns on and transmits the power of the energy storage device based on the power output port of the energy storage device. Optionally, the first switch unit can be a switching device with a control end.

[0054] The charging unit 11 is connected to the first switch unit and the energy storage module 20 respectively, and is used to transmit the electric energy of the energy storage machine to the energy storage module 20.

[0055] Specifically, the charging unit 11 is used to adapt the electric energy output by the energy storage device and the electric energy input by the energy storage module 20, so as to charge the electric energy of the energy storage device into the energy storage module 20. Optionally, the charging unit 11 can be a device such as a converter or a transformer.

[0056] In addition, the power output port can specifically be an off-grid port of the energy storage integrated machine. The off-grid port is a power port pulled out of the energy storage integrated machine itself, and the power output port outputs AC 230V electricity.

[0057] In some optional embodiments, such as Figure 3 As shown, the first switch unit includes:

[0058] The first relay K1 has a control end connected to the control unit, a first end connected to the power output port, and a second end connected to the charging unit.

[0059] Specifically, the control unit sends a charging signal to the first relay K1. After the first relay K1 is turned on, the electric energy of the energy storage device is transmitted. Optionally, the first relay K1 can be a normally closed relay. That is, when the first relay K1 is a normally closed relay, the charging signal is a conduction signal. When the first relay K1 does not receive the charging signal, the first relay K1 is in an open state.

[0060] In some optional embodiments, such as Figure 2 As shown, the charging unit 11 includes:

[0061] The first step-down unit B1 has a first end connected to the second end of the first relay K1 and a second end connected to the energy storage module 20, and is used to perform a first step-down on the electric energy of the energy storage machine and then transmit it to the energy storage module 20.

[0062] Specifically, the first step-down unit B1 may be a step-down circuit that converts the AC 230V output from the power output port of the energy storage device into 24V before transmitting it to the energy storage module 20. Optionally, the first step-down unit B1 may be a multi-stage step-down circuit such as a secondary step-down circuit or a tertiary step-down circuit.

[0063] In some optional embodiments, the energy storage device includes a power input port, and the discharge module 30 includes:

[0064] The second switch unit and the first switch unit are respectively connected to the power input port, the energy storage module 20 and the control unit, and are used to receive the discharge signal and turn on.

[0065] Specifically, when the integrated energy storage device detects that there is no power, it sends a discharge signal to the second switch unit. Upon receiving the discharge signal, the second switch unit turns on and transmits the power from the energy storage module 20 to the power input port of the integrated energy storage device. Optionally, the first switch unit can be a switch device with a control terminal. The power input port can be the power port of each module in the integrated energy storage device.

[0066] In some optional embodiments, such as Figure 3 As shown, the power input port includes a first input port, and the second switch unit includes:

[0067] The second relay K2 has a control end connected to the control unit, a first end connected to the energy storage module 20 , and a second end connected to the first input port.

[0068] Specifically, the control unit sends a discharge signal to the second relay K2. After the second relay K2 is turned on, the electric energy of the energy storage module 20 is transmitted to the energy storage integrated machine. Optionally, the second relay K2 can be a normally closed relay, that is, when the second relay K2 is a normally closed relay, the discharge signal is a conduction signal. When the second relay K2 does not receive the discharge signal, the second relay K2 is in an open state.

[0069] It should be noted that the first input port may specifically be a fire port, a 24V BMU (Battery Management Unit) port, and a 24V VBUS port (ie, a power supply terminal for the host device).

[0070] In some optional embodiments, such as Figure 3 As shown, the power input port includes a second input port, a third input port and a fourth input port, and the discharge module 30 further includes:

[0071] The voltage transformation unit 31 is connected to the second input port and the second end of the second relay K2 respectively, and is used to transform the electric energy stored in the energy storage module 20 and transmit it to the second input port, the third input port and the fourth input port respectively.

[0072] Specifically, the second input port can be a 5V BMU port, the third input port can be a 12V DRM (Direct Rendering Manager) port (i.e., kernel driver), and the fourth input port is a 5V communication port. The communication ports include DI / DO (digital input / digital output), CAN (Controller Area Network, a serial communication protocol bus for real-time applications), WIFI (wireless LAN technology), GPRS (General Packet Radio Service), Bluetooth and RS485 (multi-point half-duplex serial communication protocol), etc.

[0073] The transformer unit 31 further transforms the electric energy of the energy storage module 20 output by the second relay K2 and transmits it to the second input port, the third input port and the fourth input port respectively. Optionally, the transformer unit 31 can be a boost circuit or a buck circuit, or a circuit composed of a boost circuit and a buck circuit.

[0074] In some optional embodiments, such as Figure 4 As shown, the transformer unit 31 includes:

[0075] The second step-down unit B2 is connected to the second input port and the second end of the second relay K2 respectively, and is used for performing a second step-down on the electric energy stored in the energy storage module 20 and then transmitting it to the second input port.

[0076] Specifically, the second step-down unit B2 converts the 24V voltage into a 5V voltage and transmits it to the second input port. Optionally, the second step-down unit B2 can be a step-down circuit or a circuit composed of a step-up circuit and a step-down circuit. The second step-down is to reduce the 24V voltage to 5V.

[0077] In some optional embodiments, such as Figure 4 As shown, the transformer unit 31 includes:

[0078] The third step-down unit B3 is connected to the third input port and the second end of the second relay K2 respectively, and is used for performing a third step-down on the electric energy stored in the energy storage module 20 and then transmitting the result to the third input port.

[0079] Specifically, the third step-down unit B3 converts the 24V voltage into a 12V voltage and transmits it to the third input port. Optionally, the third step-down unit B3 can be a step-down circuit or a circuit composed of a step-up circuit and a step-down circuit. The third step-down is to reduce the 24V voltage to 12V.

[0080] In some optional embodiments, such as Figure 4As shown, the transformer unit also includes:

[0081] The fourth step-down unit B4 is connected to the fourth input port and the third step-down unit B3 respectively, and is used to perform a fourth step-down on the electric energy transmitted by the third step-down unit B3 and then transmit the electric energy to the fourth input port.

[0082] Specifically, the fourth step-down unit B4 converts the 12V voltage into 12V and transmits it to the fourth input port. Optionally, the fourth step-down unit B4 can be a step-down circuit or a circuit composed of a step-up circuit and a step-down circuit. The fourth step-down is to reduce the 12V voltage to 5V.

[0083] It should be noted that based on the convenience of circuit wiring, the second step-down unit B2 and the fourth step-down unit B4 are respectively provided to obtain a 5V voltage. Of course, the voltage can be stepped down to 5V by the second step-down unit B2 and then transmitted to the fourth input port.

[0084] In some optional embodiments, the energy storage module 20 includes:

[0085] The battery is connected to the second end of the first step-down unit B1 and the first end of the second relay K2 respectively.

[0086] Specifically, the energy storage module 20 is a battery composed of one or more batteries. When maintaining the fire backup power system, only the battery needs to be replaced, which greatly improves the convenience of maintaining the system.

[0087] It should be noted that the reference Figure 4 , S1 and S2 are the switch groups of the second relay K2, that is, when the second relay K2 is closed, S1 and S2 are also closed, and when the second relay K2 is opened, S1 and S2 are also opened. In addition, refer to Figure 3 and Figure 4 The fire protection backup power system may further include a first diode D1, a second diode D2 and a third diode D3 to prevent reverse connection.

[0088] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A fire protection backup power system, characterized in that: The system comprises: An integrated energy storage device, which is used to output electric energy and a charging signal when there is power, and output a discharge signal when there is no power; a charging module, the charging module being connected to the integrated energy storage device, the charging module being configured to receive the charging signal and output the electric energy of the integrated energy storage device after adjustment; an energy storage module, the energy storage module being connected to the charging module, receiving and storing regulated electric energy; A discharge module is connected to the energy storage module and the integrated energy storage device respectively, and is used to receive the discharge signal and transmit the electric energy stored in the energy storage module to the integrated energy storage device.

2. The system according to claim 1, wherein: The energy storage integrated machine includes a control unit and a power output port, and the charging module includes: a first switch unit, the first switch unit being connected to the power output port and the control unit respectively, and being configured to receive a charging signal and turn on; A charging unit, wherein the charging unit is connected to the first switch unit and the energy storage module respectively, and is used to transmit the electric energy of the energy storage machine to the energy storage module.

3. The system according to claim 2, characterized in that The first switch unit includes: A first relay, wherein a control end of the first relay is connected to the control unit, a first end of the first relay is connected to the power output port, and a second end of the first relay is connected to the charging unit.

4. The system according to claim 3, characterized in that The charging unit includes: A first step-down unit, wherein the first end of the first step-down unit is connected to the second end of the first relay, and the second end of the first step-down unit is connected to the energy storage module, and is used to perform a first step-down on the electric energy of the energy storage machine and then transmit it to the energy storage module.

5. The system according to claim 4, characterized in that The energy storage integrated machine includes a power input port, and the discharge module includes: The second switch unit, wherein the first switch unit is connected to the power input port, the energy storage module and the control unit respectively, and is used to receive a discharge signal and turn on.

6. The system according to claim 5, characterized in that The power input port includes a first input port, and the second switch unit includes: A second relay, wherein a control end of the second relay is connected to the control unit, a first end of the second relay is connected to the energy storage module, and a second end of the second relay is connected to the first input port.

7. The system according to claim 6, characterized in that The power input port includes a second input port, a third input port, and a fourth input port, and the discharge module further includes: A voltage transformation unit is connected to the second input port and the second end of the second relay respectively, and is used to transform the electric energy stored in the energy storage module and transmit it to the second input port, the third input port and the fourth input port respectively.

8. The system according to claim 7, characterized in that The voltage transformation unit comprises: The second step-down unit is connected to the second input port and the second end of the second relay respectively, and is used to perform a second step-down on the electric energy stored in the energy storage module and then transmit it to the second input port.

9. The system according to claim 8, characterized in that The voltage transformation unit further includes: A third step-down unit is connected to the third input port and the second end of the second relay respectively, and is used for performing a third step-down on the electric energy stored in the energy storage module and then transmitting the result to the third input port.

10. The system according to claim 9, characterized in that The voltage transformation unit further includes: A fourth step-down unit is connected to the fourth input port and the third step-down unit respectively, and is used for performing a fourth step-down on the electric energy transmitted by the third step-down unit and then transmitting the electric energy to the fourth input port.

11. The system according to claim 10, wherein: The energy storage module includes: A storage battery is connected to the second end of the first step-down unit and the first end of the second relay respectively.

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