A centralized power supply device for fire emergency lighting

Abstract

The present invention proposes a centralized power supply device for fire emergency lighting, which relates to the technical field of emergency lighting light source control, and comprises an inner cabinet and an intelligent controller. An outer edge portion is provided at the lower end of the inner cabinet, and an outer cabinet is sleeved on the outer side of the inner cabinet, a heat dissipation cavity is formed between the outer cabinet and the inner cabinet, and an air cooling component is installed at the upper end of the outer cabinet, and liquid cooling components are installed on both sides of the outer cabinet. An intelligent controller is installed on the inner side of the inner cabinet through a fixed frame, and a control algorithm and a BMS battery management system are preset in the intelligent controller, a main battery compartment and a backup battery compartment are respectively installed on both sides of the inner cabinet, a first ATS switching switch is installed on the inner side of the inner cabinet, and an input end of the first ATS switching switch is electrically connected to the main battery compartment and the backup battery compartment. By introducing a control algorithm, the present invention can intelligently adjust the air cooling component and the liquid cooling component according to the temperature and load of the centralized power supply device during operation, thereby reducing energy waste.

Description

Technical Field

[0001] The invention relates to the technical field of emergency lighting source control, and in particular to a centralized power supply device for fire emergency lighting. Background Art

[0002] With the development of the national economy, there are more and more large public buildings, large-scale underground commercial streets and other buildings. With the development of building intelligence, new technology products are constantly introduced. As a vital safety guarantee system in modern large buildings, the intelligent development of emergency lighting evacuation indication system is imperative. The fire emergency lighting evacuation indication system adopts monitoring mode, and uses information technology, computer technology and automatic control technology to monitor the fire safety passage in the building in real time, so as to achieve the purpose of product maintenance and intelligent safe evacuation.

[0003] Fire emergency lighting is different from ordinary lighting. It includes three types: standby lighting, evacuation lighting, and safety lighting. The conversion time is determined according to the actual project and relevant regulations. Emergency lighting is an important safety facility for modern public buildings and industrial buildings. It is closely related to personal safety and building safety. When a fire or other disaster occurs in a building and the power supply is interrupted, emergency lighting plays an important role in personnel evacuation, fire rescue work, and the continued operation of important production and work or necessary operations.

[0004] The working principle of the emergency lighting system usually relies on a centralized power supply device, that is, a centralized battery pack is used to provide power to each lighting device to ensure that the system can continue to operate in the event of an external power failure. Although emergency lighting provides necessary lighting at critical moments, existing centralized power supply devices may waste power when running under high load or for a long time, especially when the device is in standby mode, consuming unnecessary power. At the same time, the centralized power supply device adopts a relatively simple heat dissipation design. Under high load or high temperature environment, the battery temperature is prone to be too high, affecting the battery performance and life. Therefore, the present invention proposes a centralized power supply device for fire emergency lighting to solve the problems existing in the prior art. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to propose a centralized power supply device for fire emergency lighting, which has the advantages of stable operation and long service life and can solve the problems existing in the prior art.

[0006] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a centralized power supply device for fire emergency lighting, including an inner cabinet and an intelligent controller, the lower end of the inner cabinet is provided with an outer edge portion, and the outer side of the inner cabinet is sleeved with an outer cabinet, a heat dissipation cavity is formed between the outer cabinet and the inner cabinet, and an air cooling component is installed at the upper end of the outer cabinet, liquid cooling components are installed on both sides of the outer cabinet, an intelligent controller is installed on the inner side of the inner cabinet through a fixed frame, and a control algorithm and a BMS battery management system are preset in the intelligent controller, a main battery compartment and a backup battery compartment are respectively installed on both sides of the inner cabinet, and the main battery compartment and the backup battery compartment are electrically connected to the BMS battery management system, a first ATS switching switch is installed on the inner side of the inner cabinet, and the input end of the first ATS switching switch is electrically connected to the main battery compartment and the backup battery compartment, a load connection terminal is installed on the inner cabinet, and the load connection terminal is connected to the output end of the first ATS switching switch.

[0007] A further improvement is that the control steps of the control algorithm are:

[0008] Step 1: Obtain the external ambient temperature and the internal temperature of the cabinet in real time, then obtain the battery power, voltage, current and temperature through the BMS battery management system, and finally obtain the flow rate of the liquid cooling component and the speed of the air cooling component;

[0009] Step 2: Use the LSTM long short-term memory network model to extract the key features of the data obtained in step 1, and analyze the two factors of temperature change and load fluctuation;

[0010] Step 3: Use reinforcement learning algorithms to adjust device behavior based on temperature changes and load fluctuations.

[0011] Further improvements are: the main battery compartment and the backup battery compartment both include partitions, the partitions are equipped with placement plates, and the placement plates are provided in several groups, batteries are installed on the placement plates, the partitions are provided with wire grooves, and the number and positions of the wire grooves correspond to the batteries, and baffles are installed at the ends of the partitions, and the number and positions of the baffles correspond to the batteries.

[0012] A further improvement is that the liquid cooling assembly includes a heat conduction plate, a circulating liquid pipe is installed on the inner side of the heat conduction plate, and the circulating liquid pipe is provided with several groups, the ends of the several groups of circulating liquid pipes all pass through the outer cabinet and are connected through a distribution seat, and the distribution seat is connected to an external circulating water pump through a pipeline.

[0013] A further improvement is that the air cooling component includes a heat dissipation fan, an upper end of the outer cabinet is provided with a mounting opening, and the mounting opening is provided with several groups, a heat dissipation fan is installed on the inner side of the mounting opening through a bracket, and the wind direction of the heat dissipation fan is upward.

[0014] A further improvement is that: a socket is provided on the outer edge, and the socket is evenly arranged in a plurality of groups, and a portion of the lower end of the outer cabinet extends into the socket and is connected to the outer edge by bolts.

[0015] A further improvement is that: the outer cabinet is provided with an air inlet, the air inlet is provided with a plurality of groups, and a filter is installed on the inner side of the air inlet.

[0016] Further improvements are: the front end of the inner cabinet is of open design, and chargers are installed on both sides of the bottom of the inner cabinet, the chargers on both sides are respectively connected to the input ends of the main battery compartment and the backup battery compartment, and a second ATS switching switch and charging connection terminals are installed on the inner side of the inner cabinet, the second ATS switching switch is electrically connected to the chargers on both sides, and the charging connection terminals are electrically connected to the second ATS switching switch.

[0017] A further improvement is that a groove is provided on the placement plate, and support rollers are installed inside the groove, and the support rollers are evenly arranged in several groups.

[0018] A further improvement is that a sealed door is installed at the front end of the outer cabinet, a monitoring control panel is installed on the sealed door, and the monitoring control panel is electrically connected to the intelligent controller.

[0019] The beneficial effects of the present invention are:

[0020] (1) The present invention adopts a double-layer design and combines air-cooling components and liquid-cooling components. By using an intelligent controller and a control algorithm, the air-cooling components and liquid-cooling components can be intelligently adjusted according to the temperature and load of the centralized power supply device during operation, thereby reducing energy waste while meeting the heat dissipation requirements of the centralized power supply device and ensuring its stability during operation.

[0021] (2) The present invention adopts the design of a main battery compartment and a backup battery compartment, and uses the first ATS switching switch to realize automatic switching between the main battery compartment and the backup battery compartment. When the main battery compartment is low on power or fails, the system will automatically switch to the backup battery compartment for power supply, ensuring uninterrupted power supply to the load.

[0022] (3) In the present invention, only the main battery compartment is frequently involved in charging and discharging in daily operation, while the backup battery compartment is not involved in power supply under normal circumstances. Compared with the traditional emergency lighting centralized power supply device in which all batteries participate in the charge and discharge cycle, this can significantly reduce the number of cycles of the batteries in the backup battery compartment, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the present invention.

[0024] Figure 2It is a top view schematic diagram of the outer cabinet of the present invention.

[0025] Figure 3 It is a top view schematic diagram of the socket distribution of the present invention.

[0026] Figure 4 It is a top view schematic diagram of the heat conduction plate distribution of the present invention.

[0027] Figure 5 It is a front view schematic diagram of the sealing door of the present invention.

[0028] Among them: 1. Inner cabinet; 2. Intelligent controller; 3. Outer edge; 4. Outer cabinet; 5. Heat dissipation cavity; 6. First ATS switching switch; 7. Load connection terminal; 8. Partition; 9. Placement plate; 10. Battery; 11. Wire trough; 12. Baffle; 13. Heat conduction plate; 14. Circulating liquid pipe; 15. Distribution seat; 16. Cooling fan; 17. Socket; 18. Air inlet; 19. Filter; 20. Charger; 21. Second ATS switching switch; 22. Charging connection terminal; 23. Support roller; 24. Sealing door; 25. Monitoring control panel; 26. Vent. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0030] In traditional fire emergency lighting centralized power supply devices, usually all batteries participate in the battery charge and discharge cycle, resulting in the battery being in a charge and discharge state often when not in use. This frequent charge and discharge process accelerates battery aging and shortens the battery life.

[0031] At the same time, in the existing technology, many fire emergency lighting centralized power supply devices often have only a single heat dissipation method (for example, only using air cooling or liquid cooling), which can easily lead to inaccurate temperature control. Especially under high load or high temperature environment, the battery temperature is prone to be too high, affecting battery performance and life, and its control strategy often relies on simple fixed control strategy and lacks dynamic adaptive capabilities.

[0032] Therefore, according to Figure 1-Figure 5 As shown, this embodiment proposes a centralized power supply device for fire emergency lighting, including an inner cabinet 1 and an intelligent controller 2. The inner side of the inner cabinet 1 is equipped with an intelligent controller 2 through a fixed frame. The intelligent controller 2 has an embedded processor built in, and is equipped with a control algorithm to achieve adaptive learning. The system operation mode is dynamically adjusted according to real-time data to achieve optimal energy efficiency and operation stability.

[0033] First, a humidity and temperature sensor is installed inside the inner cabinet 1 and outside the outer cabinet 4, and the sensor is electrically connected to the intelligent controller 2. Accordingly, the intelligent controller 2 is preset with a control algorithm and a BMS battery management system. For the BMS battery management system, it monitors the battery health of the main battery compartment and the backup battery compartment to ensure that the battery will not be overcharged or over-discharged, and manages the battery temperature. As for the control algorithm, its control steps are:

[0034] Step 1: Use the humidity and temperature sensor to obtain the external ambient temperature and humidity, as well as the internal temperature and humidity of the cabinet in real time. These data help the system understand the current heat dissipation requirements and environmental factors that may cause the equipment to overheat. Then, the battery power, voltage, current and temperature are obtained through the BMS battery management system. Monitoring these data can ensure that the battery is in a safe operating range and provide the necessary battery status information for the next load adjustment and heat dissipation strategy. Finally, the flow rate of the liquid cooling component and the speed of the air cooling component are obtained. The flow rate of the liquid cooling system can affect the heat conduction efficiency, and the working status of the air cooling system is obtained through the fan speed sensor. After obtaining the data, standardize and clean it to remove noise, outliers, and data that does not meet the standards. After the data is cleaned, it can be input into the subsequent analysis model for feature extraction and learning.

[0035] Step 2: Use the LSTM long short-term memory network model to extract key features from the data obtained in step 1, such as temperature change patterns, load fluctuation patterns, etc. LSTM will learn the long-term dependencies and trends of these features. It will also analyze the two factors of temperature change and load fluctuation. Then, for these two factors, the LSTM long short-term memory network model will learn the temperature change patterns under different time periods and environmental conditions, and predict the temperature changes in the future. Furthermore, it will analyze the fluctuations in battery load and the impact of the load on temperature and heat dissipation, so as to determine whether it is necessary to adjust the load current, power distribution, etc. Therefore, the relationship between temperature changes and load fluctuations is captured through its loop structure. For example, when the load is large, the temperature rises, and whether it is necessary to increase the cooling intensity, and then provide a real-time prediction result.

[0036] Step 3: Use a reinforcement learning algorithm to adjust the device behavior based on the two factors of temperature change and load fluctuation. Specifically, use the DeepQNetwork (DQN) reinforcement learning algorithm to adjust the behavior of the power supply device based on the real-time prediction results obtained in step 2, including:

[0037] (1) According to temperature and load fluctuations, choose to increase or decrease the liquid cooling flow rate, air cooling speed, or a combination of the two;

[0038] (2) Dynamically adjust the discharge ratio of the main battery compartment and the backup battery compartment according to the battery power, temperature and load requirements;

[0039] (3) When the load is low, the system can choose to reduce the charging current to save energy, and increase the charging current to ensure sufficient power when the load increases.

[0040] Furthermore, after each operation, the strategy is adjusted according to the actual effect (such as temperature change, energy saving effect, battery health, etc.) to optimize the decision-making process, thereby ensuring the reliability of emergency lighting source control and meeting the needs of special situations.

[0041] An outer edge portion 3 is provided at the lower end of the inner cabinet body 1, and an outer cabinet body 4 is sleeved on the outer side of the inner cabinet body 1. A socket 17 is provided on the outer edge portion 3, and the socket 17 is evenly arranged in a plurality of groups. A portion of the lower end of the outer cabinet body 4 extends into the socket 17 and is connected to the outer edge portion 3 by bolts. The design of the socket 17 facilitates installation and disassembly between the outer cabinet body 4 and the inner cabinet body 1.

[0042] A heat dissipation cavity 5 is formed between the outer cabinet 4 and the inner cabinet 1. An air inlet 18 is provided on the outer cabinet 4. The air inlet 18 is provided in several groups. A filter 19 is installed inside the air inlet 18. The air inlet 18 is connected to the heat dissipation cavity 5. An air cooling component is installed at the upper end of the outer cabinet 4. The air cooling component includes a heat dissipation fan 16. An installation port is provided at the upper end of the outer cabinet 4. The installation port is provided in several groups. In this embodiment, the installation port is evenly provided with four groups. The heat dissipation fan 16 is installed inside the installation port through a bracket. The wind direction of the heat dissipation fan 16 faces upward. Correspondingly, the control end of the heat dissipation fan 16 is connected to the intelligent controller 2, and the intelligent controller 2 adjusts its speed according to the result of the control algorithm.

[0043] Liquid cooling components are installed on both sides of the outer cabinet 4. The liquid cooling components include a heat conducting plate 13. A circulating liquid pipe 14 is installed on the inner side of the heat conducting plate 13. The circulating liquid pipe 14 is provided with several groups. At the same time, a vent 26 is also provided on the heat conducting plate 13. In this embodiment, three groups of circulating liquid pipes 14 are correspondingly provided on the heat conducting plate 13. The ends of the three groups of circulating liquid pipes 14 all pass through the outer cabinet 4 and are connected through the distribution seat 15. Therefore, the distribution seat 15 is respectively arranged on the upper side and the lower side. The distribution seat 15 is connected to the external circulating water pump through a pipeline. For the liquid cooling component, it also includes a circulating liquid barrel, which is also arranged outside the device like the external circulating water pump, and the control end of the external circulating water pump is connected to the intelligent controller 2. The intelligent controller 2 adjusts its power according to the result of the control algorithm, so as to achieve the effect of controlling the flow rate of the circulating liquid. Correspondingly, the output end of the external circulating water pump is connected to the lower distribution seat 15 through a pipeline, and the upper distribution seat 15 is connected to the input end of the circulating liquid barrel through a pipeline, and the output end of the circulating liquid barrel is connected to the input end of the external circulating water pump through a pipeline.

[0044] The heat conducting plate 13 is attached to the inner cabinet 1 , so that the heat in the inner cabinet 1 interacts with the heat conducting plate 13 by transfer.

[0045] The main battery compartment and the backup battery compartment are installed on both sides of the inner cabinet 1, and the main battery compartment and the backup battery compartment are electrically connected to the BMS battery management system. The main battery compartment and the backup battery compartment both include a partition 8, which is fixedly connected to the inner cabinet 1. A placement plate 9 is installed on the partition 8, and the placement plate 9 is provided with several groups. In this embodiment, the placement plate 9 is evenly provided with four groups. The placement plate 9 is installed with storage batteries 10. The partition 8 is provided with a wire groove 11, and the number and position of the wire groove 11 correspond to the storage batteries 10. The wire groove 11 is used to provide a channel for wiring. A baffle 12 is installed at the end of the partition 8, and the number and position of the baffle 12 correspond to the storage batteries 10. The baffle 12 is connected to the partition 8 by bolts. After the storage batteries 10 are installed, the baffle 12 is installed. At this time, the baffle 12 contacts the storage batteries 10, and then has a limiting effect on it. Furthermore, a groove is provided on the placement plate 9, and a support roller 23 is installed inside the groove. The support rollers 23 are evenly arranged in a plurality of groups. The support rollers 23 are in contact with the lower end surface of the battery 10, so as to facilitate pushing in or pulling out.

[0046] A first ATS switching switch 6 is installed on the inner side of the inner cabinet 1, and the input end of the first ATS switching switch 6 is electrically connected to the main battery compartment and the backup battery compartment. A load connection terminal 7 is installed on the inner cabinet 1, and the load connection terminal 7 is connected to the output end of the first ATS switching switch 6. In this device, the load connection terminal 7 is responsible for connecting the first ATS switching switch 6 to an external fire emergency lighting source, so that the centralized power supply can supply power to the fire emergency lighting, ensuring that it can provide emergency lighting functions in an emergency state. When working, the first ATS switching switch 6 automatically selects to supply power to the load according to the power of the main battery compartment and the backup battery compartment. If the main battery compartment has sufficient power, the load connection terminal 7 will obtain power from the main battery compartment; if the main battery compartment is insufficient or fails, the ATS will automatically switch to the backup battery compartment to continue supplying power. Under normal conditions, the main battery compartment is responsible for the main work, while the backup battery compartment serves as a backup. Therefore, the main battery compartment will often participate in the battery charging and discharging, while the backup battery compartment will be in standby mode and will not participate in the battery discharging process. It will only serve as a backup power supply when a power failure occurs. Therefore, by designing some battery compartments as backup batteries, this device can effectively prevent the battery from aging due to frequent charging and discharging, thereby extending the service life of the backup battery. The backup battery will not frequently participate in the power supply, reducing its cycle times. Accordingly, if the main battery compartment fails or the battery power is insufficient, the backup battery compartment can be quickly enabled to ensure continuous power supply to the system and enhance the reliability of the system. As the number of battery cycles increases, the battery life will gradually decrease. Therefore, only the main battery compartment will frequently participate in charging and discharging in daily work, while the backup battery compartment will not participate in the power supply at ordinary times. This can significantly reduce the number of cycles of the backup battery, thereby extending its service life.

[0047] Then, when replacing the battery in the main battery compartment, the battery in the spare battery compartment can be replaced, and then the new battery can be put into the spare battery compartment.

[0048] Furthermore, the front end of the inner cabinet 1 is of an open design, and chargers 20 are installed on both sides of the bottom of the inner cabinet 1. The chargers 20 on both sides are respectively connected to the input ends of the main battery compartment and the backup battery compartment. A second ATS switching switch 21 and a charging connection terminal 22 are installed on the inner side of the inner cabinet 1. The second ATS switching switch 21 is electrically connected to the chargers 20 on both sides, and the charging connection terminal 22 is electrically connected to the second ATS switching switch 21. Correspondingly, the charging connection terminal 22 is connected to an external power supply device through a wire. When the battery power is low, the charger 20 will start working, converting the external power supply into a voltage and current suitable for battery charging, charging the main battery compartment and the backup battery compartment, and cutting off the connection between the charger 20 and each battery compartment after being fully charged.

[0049] The front end of the outer cabinet 4 is equipped with a sealed door 24, which can be opened. A monitoring control panel 25 is installed on the sealed door 24. The monitoring control panel 25 is electrically connected to the intelligent controller 2. The monitoring control panel 25 is the main interface for the user to interact with the system. It can display real-time data and status, including battery power, temperature, current, voltage, air cooling / liquid cooling working status, etc. Through this panel, the operator can directly view the operating status of the system, perform manual settings or adjustments, and enable or stop certain functions. The outer cabinet 4 is provided with openings corresponding to the charging connection terminal 22 and the load connection terminal 7 to facilitate the passage of wires.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the framework and scope of application 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 centralized power supply device for fire emergency lighting, comprising an inner cabinet (1) and an intelligent controller (2), characterized in that: The lower end of the inner cabinet (1) is provided with an outer edge portion (3), and the outer side of the inner cabinet (1) is sleeved with an outer cabinet (4), a heat dissipation cavity (5) is formed between the outer cabinet (4) and the inner cabinet (1), and an air cooling component is installed at the upper end of the outer cabinet (4), and liquid cooling components are installed on both sides of the outer cabinet (4), an intelligent controller (2) is installed on the inner side of the inner cabinet (1) through a fixed frame, and a control algorithm and a BMS battery management system are preset in the intelligent controller (2), a main battery compartment and a backup battery compartment are installed on both sides of the inner cabinet (1), and the main battery compartment and the backup battery compartment are electrically connected to the BMS battery management system, a first ATS switching switch (6) is installed on the inner side of the inner cabinet (1), and the input end of the first ATS switching switch (6) is electrically connected to the main battery compartment and the backup battery compartment, and a load connection terminal (7) is installed on the inner cabinet (1), and the load connection terminal (7) is connected to the output end of the first ATS switching switch (6).

2. The centralized power supply device for fire emergency lighting according to claim 1 is characterized in that: The control steps of the control algorithm are: Step 1: Obtain the external ambient temperature and the internal temperature of the cabinet in real time, then obtain the battery power, voltage, current and temperature through the BMS battery management system, and finally obtain the flow rate of the liquid cooling component and the speed of the air cooling component; Step 2: Use the LSTM long short-term memory network model to extract the key features of the data obtained in step 1, and analyze the two factors of temperature change and load fluctuation; Step 3: Use reinforcement learning algorithms to adjust device behavior based on temperature changes and load fluctuations.

3. The centralized power supply device for fire emergency lighting according to claim 1 is characterized in that: The main battery compartment and the backup battery compartment both comprise a partition (8), a placement plate (9) is mounted on the partition (8), and the placement plates (9) are provided with a plurality of groups, a storage battery (10) is mounted on the placement plates (9), a wire groove (11) is provided on the partition (8), and the number and position of the wire groove (11) correspond to the storage battery (10), and a baffle (12) is mounted at the end of the partition (8), and the number and position of the baffle (12) correspond to the storage battery (10).

4. The centralized power supply device for fire emergency lighting according to claim 1 is characterized in that: The liquid cooling assembly comprises a heat conducting plate (13), a circulating liquid pipe (14) is installed on the inner side of the heat conducting plate (13), and the circulating liquid pipe (14) is provided with a plurality of groups, the ends of the plurality of groups of circulating liquid pipes (14) all pass through the outer cabinet (4) and are connected via a distribution seat (15), and the distribution seat (15) is connected to an external circulating water pump via a pipeline.

5. The centralized power supply device for fire emergency lighting according to claim 1 is characterized in that: The air cooling component comprises a cooling fan (16); the upper end of the outer cabinet (4) is provided with a mounting opening, and the mounting opening is provided with a plurality of groups; the cooling fan (16) is mounted on the inner side of the mounting opening via a bracket, and the wind direction of the cooling fan (16) faces upward.

6. The centralized power supply device for fire emergency lighting according to claim 1, characterized in that: The outer edge portion (3) is provided with a socket (17), and the sockets (17) are evenly arranged in a plurality of groups. The lower end portion of the outer cabinet (4) extends into the socket (17) and is connected to the outer edge portion (3) via bolts.

7. The centralized power supply device for fire emergency lighting according to claim 1 is characterized in that: The outer cabinet (4) is provided with an air inlet (18), the air inlet (18) is provided with a plurality of groups, and a filter screen (19) is installed on the inner side of the air inlet (18).

8. The centralized power supply device for fire emergency lighting according to claim 1 is characterized in that: The front end of the inner cabinet (1) is of an open design, and chargers (20) are installed on both sides of the lower side of the inner cabinet (1), and the chargers (20) on both sides are respectively connected to the input ends of the main battery compartment and the backup battery compartment. A second ATS switch (21) and a charging connection terminal (22) are installed on the inner side of the inner cabinet (1), and the second ATS switch (21) is electrically connected to the chargers (20) on both sides, and the charging connection terminal (22) is electrically connected to the second ATS switch (21).

9. The centralized power supply device for fire emergency lighting according to claim 3 is characterized in that: The placement plate (9) is provided with a groove, and a support roller (23) is installed inside the groove. The support rollers (23) are evenly arranged in a plurality of groups.

10. The centralized power supply device for fire emergency lighting according to claim 1, characterized in that: A sealed door (24) is installed at the front end of the outer cabinet (4), a monitoring control panel (25) is installed on the sealed door (24), and the monitoring control panel (25) is electrically connected to the intelligent controller (2).

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