Liquid-cooled energy storage outdoor cabinet

Abstract

The utility model discloses a kind of liquid-cooled energy storage outdoor cabinet, and it relates to energy storage technical field, including cabinet mechanism, the cabinet mechanism includes installation cabinet, the top of the inner chamber of installation cabinet is fixedly connected with access control switch, the inner wall of installation cabinet and below access control switch is provided with battery high voltage box, the bottom of battery high voltage box is provided with PCS module. The utility model is started when detecting fire by prefabricated perfluorocyclohexanone fire extinguishing device, and fire spreads is inhibited;Surge protection and anti-backflow detection ammeter joint action, effectively resist lightning and power grid fluctuation, system impact resistance is significantly improved, dehumidifier and water immersion switch real-time monitoring cabinet humidity and waterlogging situation, when humidity is too high, automatically start dehumidification, EMS screen and controller integrated design, provide man-machine interface, support remote monitoring and fault diagnosis, shorten operation and maintenance response time, make it more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically to a liquid-cooled outdoor energy storage cabinet. Background Technology

[0002] Traditional outdoor energy storage cabinets are widely used in photovoltaic power plants, data centers, and communication base stations, undertaking the core functions of energy storage and stable power supply. They integrate key components such as battery packs, inverters, and control systems, storing electrical energy by converting it into chemical energy and releasing it during power outages or peak electricity demand to ensure continuous equipment operation. For example, in communication base stations in remote areas, energy storage cabinets can store solar-converted electrical energy, ensuring uninterrupted 24-hour communication.

[0003] However, in high-temperature and high-humidity outdoor environments, the heat generated by the continuous charging and discharging of the battery packs in existing energy storage cabinets cannot be dissipated in time, which can easily lead to battery thermal runaway, shorten service life, or even cause safety accidents. At the same time, outdoor rainwater infiltration, lightning surges, and other factors may damage electrical components and affect system reliability. For example, in the plum rain season in the south, excessive humidity inside the cabinet can easily cause short circuits in the circuit boards, increasing maintenance costs and the risk of power outages. Therefore, a liquid-cooled outdoor energy storage cabinet is proposed. Utility Model Content

[0004] This invention provides a liquid-cooled energy storage outdoor cabinet to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A liquid-cooled energy storage outdoor cabinet includes a cabinet body, which includes a mounting cabinet. An access control switch is fixedly connected to the top of the mounting cabinet's inner cavity. A high-voltage battery box is located on the inner wall of the mounting cabinet below the access control switch. A PCS module is located at the bottom of the high-voltage battery box. A prefabricated perfluorohexanone fire extinguishing device is located at the top of the cabinet's inner cavity. The cabinet also includes a door, with an EMS screen fixedly connected inside the door. An EMS controller is fixedly connected below the EMS screen and to the surface of the door. A fire controller is fixedly connected to one side of the EMS controller, and a maintenance socket is fixedly connected to one side of the fire controller.

[0007] A further improvement of this utility model is that the cabinet mechanism further includes a water-cooled unit, which is located below the PCS module, and the surface of the water-cooled unit is fixedly connected to the inner wall of the cabinet.

[0008] A further improvement of this utility model is that the cabinet mechanism also includes surge protection, and the surface of the surge protection is fixedly connected to the inner wall of the cabinet.

[0009] A further improvement of this utility model is that: a backflow prevention detection meter is fixedly connected to one side of the surge protection, and a billing meter is fixedly connected to the bottom of the surge protection.

[0010] A further improvement of this utility model is that: one end of the billing meter is provided with an input electric circuit breaker, and the surface of the input electric circuit breaker is fixedly connected to the inner wall of the cabinet.

[0011] A further improvement of this utility model is that: a PACK battery pack is provided below the water-cooled unit, the surface of the PACK battery pack is fixedly connected to the inner wall of the cabinet, and a water immersion switch is fixedly connected to the bottom of the inner cavity of the cabinet.

[0012] A further improvement of this utility model is that: the cabinet door mechanism further includes a pressure relief valve, the surface of which is fixedly connected to the surface of the cabinet door; a power distribution switch group is provided below the maintenance socket; and a dehumidifier is provided below the power distribution switch group.

[0013] A further improvement of this utility model is that: a PACK battery pack is fixedly connected to the inner wall of the cabinet, a water immersion switch is fixedly connected to the lower end of the PACK battery pack, an EMS screen waterproof cover is fixedly connected to one side of the EMS screen and the surface of the cabinet door, and a prefabricated perfluorohexanone fire extinguishing device is installed at the top of the inner cavity of the cabinet.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This invention provides a liquid-cooled outdoor energy storage cabinet. Through the collaborative operation of a water-cooled unit and a PCS module, heat is removed via coolant circulation, keeping the battery pack's operating temperature within the optimal range. This results in higher cooling efficiency and longer battery life compared to traditional air-cooled solutions. Simultaneously, a pre-installed perfluorohexanone fire extinguishing device activates upon fire detection to suppress its spread. Surge protection and a backflow prevention detection meter work together to effectively resist lightning strikes and grid fluctuations, significantly improving the system's impact resistance. A dehumidifier and water immersion switch monitor the cabinet's humidity and water accumulation in real time, automatically activating dehumidification when humidity is too high. The integrated design of the EMS screen and controller provides a human-machine interface, supporting remote monitoring and fault diagnosis, shortening maintenance response time and making it easier to use. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0018] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point B.

[0020] In the diagram: 1. EMS screen; 2. EMS controller; 3. Fire control controller; 4. Maintenance socket; 5. Power distribution switch group; 6. Dehumidifier; 7. Access control switch; 8. Surge protection; 9. Backflow prevention detection meter; 10. Billing meter; 11. Input electric circuit breaker; 12. Battery high-voltage box; 13. PCS module; 14. Water-cooled unit; 15. Pressure relief valve; 16. PACK battery pack; 17. Water immersion switch; 18. EMS screen waterproof cover; 19. Prefabricated perfluorohexanone fire extinguishing device. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to embodiments:

[0022] Example 1

[0023] like Figure 1-4 As shown, this utility model provides a liquid-cooled energy storage outdoor cabinet, including a cabinet body mechanism, which includes a mounting cabinet. An access control switch 7 is fixedly connected to the top of the inner cavity of the mounting cabinet. A high-voltage battery box 12 is installed on the inner wall of the mounting cabinet and below the access control switch 7. A PCS module 13 is installed at the bottom of the high-voltage battery box 12. A prefabricated perfluorohexanone fire extinguishing device 19 is installed at the top of the inner cavity of the cabinet. The cabinet door mechanism includes a cabinet door. An EMS screen 1 is fixedly connected inside the cabinet door. An EMS controller 2 is fixedly connected below the EMS screen 1 and on the surface of the cabinet door. A fire controller 3 is fixedly connected to one side of the EMS controller 2. A maintenance socket 4 is fixedly connected to one side of the fire controller 3.

[0024] In this embodiment, the mains power or photovoltaic power is connected to the cabinet via the input electric circuit breaker 11. After being metered by the billing meter 10 and filtered by the surge protection 8, the reverse current detection meter 9 ensures unidirectional current. The battery high-voltage box 12 converts the electrical energy into high-voltage DC power and transmits it to the PCS module 13. The PCS module 13 then inverts it into standard AC power for the load. The PACK battery pack 16 stores electrical energy. The water-cooled unit 14 maintains the battery pack's operating temperature at 25-35°C through coolant circulation. The coolant path is water-cooled unit → battery pack → PCS module → water-cooled unit.

[0025] Example 2

[0026] like Figure 1-4As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the cabinet mechanism further includes a water-cooled unit 14, which is disposed below the PCS module 13. The surface of the water-cooled unit 14 is fixedly connected to the inner wall of the cabinet. The cabinet mechanism also includes a surge protection 8, which is fixedly connected to the inner wall of the cabinet. A backflow prevention detection meter 9 is fixedly connected to one side of the surge protection 8. A billing meter 10 is fixedly connected to the bottom of the surge protection 8. An input electric circuit breaker 11 is provided at one end of the billing meter 10. The surface of the input electric circuit breaker 11 is fixedly connected to the inner wall of the cabinet.

[0027] In this embodiment, the EMS controller 2 collects battery status data in real time through sensors, uploads it to the EMS screen 1 for display, and remotely transmits it to the monitoring center. At the same time, it automatically adjusts the charging and discharging strategy according to parameters such as peak and off-peak electricity prices and load demand. The dehumidifier 6 continuously monitors the humidity inside the cabinet and automatically starts when the RH exceeds 60%. The water-cooled unit 14 synchronously adjusts the coolant temperature to ensure that the temperature and humidity inside the cabinet are constant. The fire controller 3 is connected to the smoke sensor and the prefabricated perfluorohexanone fire extinguishing device 19, which responds to the fire within 0.5 seconds.

[0028] Example 3

[0029] like Figure 1-4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a PACK battery pack 16 is provided below the water-cooled unit 14, the surface of the PACK battery pack 16 is fixedly connected to the inner wall of the cabinet, a water immersion switch 17 is fixedly connected to the bottom of the cabinet cavity, the cabinet door mechanism also includes a pressure relief valve 15, the surface of the pressure relief valve 15 is fixedly connected to the surface of the cabinet door, a power distribution switch group 5 is provided below the maintenance socket 4, a dehumidifier 6 is provided below the power distribution switch group 5, the PACK battery pack 16 is fixedly connected to the inner wall of the cabinet, a water immersion switch 17 is fixedly connected to the lower end of the PACK battery pack 16, an EMS screen waterproof cover plate 18 is fixedly connected to one side of the EMS screen 1 and located on the surface of the cabinet door, and a prefabricated perfluorohexanone fire extinguishing device 19 is provided at the top of the cabinet cavity.

[0030] In this embodiment, the water immersion switch 17 at the bottom of the cabinet monitors the water accumulation in real time and cuts off the circuit when the warning value is reached; maintenance personnel interact with the EMS screen 1, the maintenance socket 4 provides maintenance power, the access control switch 7 automatically cuts off the high-voltage circuit when the cabinet door is opened, and the pressure relief valve 15 releases pressure when the pressure is abnormal; each sensor monitors the system status in real time, and when a fault is detected, it is handled according to the hierarchical mechanism, and all fault information is stored in the database of the EMS controller 2.

[0031] The working principle of this liquid-cooled energy storage outdoor cabinet will be explained in detail below.

[0032] like Figure 1-4 As shown, mains power or photovoltaic power is connected to the cabinet via input electric circuit breaker 11. After being metered by billing meter 10 and filtered by surge protection 8, the reverse current detection meter 9 ensures unidirectional current. The battery high-voltage box 12 converts the electrical energy into high-voltage DC power and transmits it to PCS module 13. PCS module 13 then inverts it into standard AC power for the load. PACK battery pack 16 stores electrical energy. Water-cooled unit 14 maintains the battery pack's operating temperature at 25-35℃ through coolant circulation. The coolant path is water-cooled unit → battery pack → PCS module → water-cooled unit. EMS controller 2 collects battery status data in real time through sensors, uploads it to EMS screen 1 for display, and remotely transmits it to the monitoring center. At the same time, it automatically adjusts the battery status data according to parameters such as grid peak and valley electricity prices and load demand. The system dynamically adjusts the charging and discharging strategy; the dehumidifier 6 continuously monitors the humidity inside the cabinet and automatically starts when the RH exceeds 60%; the water-cooled unit 14 synchronously adjusts the coolant temperature to ensure constant temperature and humidity inside the cabinet; the fire controller 3 connects the smoke sensor and the prefabricated perfluorohexanone fire extinguishing device 19, responding to fire within 0.5 seconds; the water immersion switch 17 at the bottom of the cabinet monitors the water accumulation in real time and cuts off the circuit when the alarm value is reached; maintenance personnel can interact with the system through the EMS screen 1; the maintenance socket 4 provides maintenance power; the access control switch 7 automatically cuts off the high-voltage circuit when the cabinet door is opened; the pressure relief valve 15 releases pressure when the pressure is abnormal; each sensor monitors the system status in real time, and when a fault is detected, it is handled according to the hierarchical mechanism, and all fault information is stored in the database of the EMS controller 2.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A liquid-cooled energy storage outdoor cabinet, characterized in that: include The cabinet structure includes an installation cabinet, with a door access switch (7) fixedly connected to the top of the inner cavity of the installation cabinet, a battery high-voltage box (12) located on the inner wall of the installation cabinet and below the door access switch (7), a PCS module (13) located at the bottom of the battery high-voltage box (12), and a prefabricated perfluorohexanone fire extinguishing device (19) located at the top of the inner cavity of the cabinet. Cabinet door mechanism, the cabinet door mechanism includes a cabinet door, an EMS screen (1) is fixedly connected inside the cabinet door, an EMS controller (2) is fixedly connected below the EMS screen (1) and on the surface of the cabinet door, a fire controller (3) is fixedly connected to one side of the EMS controller (2), and a maintenance socket (4) is fixedly connected to one side of the fire controller (3).

2. The liquid-cooled energy storage outdoor cabinet according to claim 1, characterized in that: The cabinet structure also includes a water-cooled unit (14), which is located below the PCS module (13), and the surface of the water-cooled unit (14) is fixedly connected to the inner wall of the cabinet.

3. The liquid-cooled energy storage outdoor cabinet according to claim 1, characterized in that: The cabinet structure also includes surge protection (8), the surface of which is fixedly connected to the inner wall of the cabinet.

4. The liquid-cooled energy storage outdoor cabinet according to claim 3, characterized in that: A backflow detection meter (9) is fixedly connected to one side of the surge protection (8), and a billing meter (10) is fixedly connected to the bottom of the surge protection (8).

5. The liquid-cooled energy storage outdoor cabinet according to claim 4, characterized in that: One end of the billing meter (10) is provided with an input electric circuit breaker (11), and the surface of the input electric circuit breaker (11) is fixedly connected to the inner wall of the cabinet.

6. The liquid-cooled energy storage outdoor cabinet according to claim 2, characterized in that: A PACK battery pack (16) is provided below the water-cooled unit (14). The surface of the PACK battery pack (16) is fixedly connected to the inner wall of the cabinet. A water immersion switch (17) is fixedly connected to the bottom of the inner cavity of the cabinet.

7. The liquid-cooled energy storage outdoor cabinet according to claim 1, characterized in that: The cabinet door mechanism also includes a pressure relief valve (15), the surface of which is fixedly connected to the surface of the cabinet door. A power distribution switch group (5) is provided below the maintenance socket (4), and a dehumidifier (6) is provided below the power distribution switch group (5).

8. The liquid-cooled energy storage outdoor cabinet according to claim 1, characterized in that: A PACK battery pack (16) is fixedly connected to the inner wall of the cabinet. A water immersion switch (17) is fixedly connected to the lower end of the PACK battery pack (16). An EMS screen waterproof cover plate (18) is fixedly connected to one side of the EMS screen (1) and on the surface of the cabinet door. A prefabricated perfluorohexanone fire extinguishing device (19) is installed at the top of the inner cavity of the cabinet.

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