Outdoor centralized energy storage cabinet

Abstract

The utility model discloses an outdoor centralized energy storage cabinet which comprises a machine frame, a bottom plate arranged at the bottom of the machine frame, a top plate arranged at the top of the machine frame, a first vertical plate arranged on the bottom plate, a partition plate arranged on the side wall of the first vertical plate, and a plurality of second vertical plates arranged at the top of the partition plate in an array mode. The plurality of groups of battery modules adopt a group string type energy storage system architecture, inter-cluster ring current is actively avoided, potential safety hazards are completely eradicated, the charge and discharge capacity of the system is increased, the condition of the first accommodating cavity is monitored in real time through the detection device, the fire control panel processes the condition, and when the detection device detects a thermal runaway signal, the fire control panel sends the thermal runaway signal to the battery module. The fire control panel sends an electric signal to the heptafluoropropane fire extinguishing system to start fire extinguishing and alarm starting in the first containing cavity, an alarm lamp of the alarm box gives an alarm, when the EMS receives a fire extinguishing signal, the main circuit breaker is actively cut off, meanwhile, a signal is sent to the PCS, operation of the PCS is stopped, a circuit breaking device in the PCS is cut off, and secondary cut-off protection is provided for the main circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of energy storage cabinet technology, and in particular to an outdoor centralized energy storage cabinet. Background Technology

[0002] An energy storage cabinet is an integrated energy storage device that integrates an energy storage system, a battery management system, an energy conversion system, and other equipment. It typically appears as a large container and contains multiple battery modules, heat dissipation modules, fire protection modules, etc. It can serve as an independent power station to participate in grid frequency / voltage regulation, provide backup power, and peak shaving and valley filling. It can also cooperate with renewable energy power generation to increase the amount of renewable energy fed into the grid. Furthermore, on the user side, it can profit from price arbitrage through peak-valley price differences and participate in demand-side response.

[0003] However, most existing battery modules adopt a centralized energy storage system architecture, and the inter-cluster circulating current seriously affects the battery capacity. Moreover, the fire protection module cannot detect and extinguish cell abnormalities in a timely manner.

[0004] Therefore, it is necessary to provide an outdoor centralized energy storage cabinet to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an outdoor centralized energy storage cabinet to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an outdoor centralized energy storage cabinet, comprising a frame, a bottom plate at the bottom of the frame, a top plate at the top of the frame, a first upright plate on the bottom plate, a partition on the side wall of the first upright plate, and an array of second upright plates on the top of the partition. The multiple second upright plates, the top plate, the first upright plate, and the partition form multiple first accommodating cavities, in which battery modules are disposed. The lower end of the partition has an array of third upright plates, and the multiple third upright plates, the partition, the first upright plate, and the bottom plate form multiple second accommodating cavities, in which a main control box is disposed. The front of the frame has an opening and closing door that closes the first and second accommodating cavities. A warning box and a placement box are disposed on the side wall of the frame, with the placement box located above the warning box. The placement box contains a low-voltage distribution box, a fire control panel, and a main control box. A detection device is disposed in the first accommodating cavity. A heptafluoropropane fire extinguishing system and an aerosol automatic fire extinguishing device are disposed in the first accommodating cavity.

[0007] As a preferred technical solution of this utility model, a cooling unit is provided on the side wall of the first upright plate away from the partition plate, and the cooling unit ventilates and cools the first and second receiving cavities through the ventilation holes on the first upright plate.

[0008] As a preferred technical solution of this utility model, the multiple sets of battery modules adopt a string energy storage system architecture.

[0009] As a preferred embodiment of this utility model, the warning box is equipped with an alarm device, and the alarm device is equipped with a warning light.

[0010] As a preferred embodiment of this utility model, a cable assembly is provided at the bottom of the placement box.

[0011] As a preferred embodiment of this invention, the detection device includes a hazardous and combustible gas sensor, a temperature sensor, and a smoke sensor.

[0012] As a preferred technical solution of this utility model, the temperature sensor adopts cell-level BMU temperature detection and safety early warning.

[0013] As a preferred embodiment of this utility model, the top plate is provided with an array of multiple reinforcing ribs.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model discloses an outdoor centralized energy storage cabinet. It incorporates multiple battery modules within a first receiving cavity, employing a string-type energy storage system architecture to actively prevent inter-cluster circulation, eliminate safety hazards, and increase system charging and discharging capacity. The first receiving cavity is equipped with a detection device, a heptafluoropropane fire extinguishing system, and an automatic aerosol fire extinguishing device. The detection device monitors the condition of the first receiving cavity in real time, promptly transmitting any abnormal signals to the fire control panel. The fire control panel then controls the corresponding systems for processing. When the detection device detects thermal runaway signals... After the signal is received, the fire control panel sends an electrical signal to the heptafluoropropane fire extinguishing system to begin extinguishing the fire in the first containment chamber. At the same time, the alarm is activated and the warning light in the alarm box is activated. The fire control panel communicates with the Energy Management System (EMS) in real time. When the EMS receives the fire extinguishing signal, it actively cuts off the main circuit breaker and sends a signal to the PCS to stop the operation of the PCS and cut off the internal circuit breaker of the PCS, providing secondary cut-off protection for the main circuit breaker. When the temperature in the first containment chamber reaches the set temperature, the automatic aerosol fire extinguishing device is automatically activated to extinguish the fire, with a rapid response. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the overall internal structure of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the frame structure of this utility model;

[0020] Figure 4 This is an isometric drawing of the frame structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal connection of the battery module of this utility model.

[0022] In the diagram: 1. Frame; 101. Base plate; 102. First upright plate; 103. Partition; 104. Second upright plate; 105. Third upright plate; 106. Warning box; 107. Storage box; 108. First receiving cavity; 109. Second receiving cavity; 2. Opening door; 3. Top plate; 4. Reinforcing rib plate; 5. Main control box; 6. Battery module; 7. Refrigeration unit; 8. Low-voltage distribution box; 9. Fire control panel; 10. Main control box; 11. Cable group; 12. Alarm box; 13. Warning light. Detailed Implementation

[0023] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.

[0024] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the user's or operator's intent or convention. Therefore, these terms are defined based on the entire contents of this specification.

[0025] like Figures 1 to 5As shown, an outdoor centralized energy storage cabinet includes a frame 1. A base plate 101 is provided at the bottom of the frame 1, and a top plate 3 is provided at the top of the frame 1. Multiple reinforcing ribs 4 are arranged in an array on the top plate 3. A first upright plate 102 is provided on the base plate 101. A partition plate 103 is provided on the side wall of the first upright plate 102. Multiple second upright plates 104 are arranged in an array on the top of the partition plate 103. The multiple second upright plates 104, the top plate 3, the first upright plates 102, and the partition plates 103 form multiple first receiving cavities 108. Battery modules 6 are arranged within the first receiving cavities 108. The multiple battery modules 6 adopt a string energy storage system architecture to actively avoid inter-cluster loops. To prevent safety hazards and increase the system's charging and discharging capacity, the lower end of the partition 103 is arrayed with multiple third upright plates 105. The multiple third upright plates 105, partition 103, first upright plate 102, and bottom plate 101 form multiple second accommodating cavities 109. The main control box 5 is arranged in the second accommodating cavity 109. The side wall of the first upright plate 102 away from the partition 103 is provided with a cooling unit 7. The cooling unit 7 ventilates and cools the first accommodating cavity 108 and the second accommodating cavity 109 through ventilation holes on the first upright plate 102. The front of the frame 1 is provided with an opening and closing door 2, which closes the first accommodating cavity 108 and the second accommodating cavity 109.

[0026] like Figures 2 to 4 As shown, a warning box 106 and a storage box 107 are provided on the side wall of the rack 1 away from the refrigeration unit 7. The storage box 107 is located above the warning box 106. An alarm device is provided inside the warning box 106, and a warning light 13 is provided on the alarm device. A cable group 11 is provided at the bottom of the storage box 107. A low-voltage distribution box 8, a fire control panel 9, and a main control box 10 are provided inside the storage box 107. A detection device is provided inside the first receiving cavity 108. The detection device includes a hazardous and combustible gas sensor, a temperature sensor, and a smoke sensor. The detection device monitors the condition of the first receiving cavity 108 in real time. When an abnormal signal is detected, it is promptly transmitted to the fire control panel 9, which then controls the corresponding... The system processes the signal. The first containment cavity 108 is also equipped with a heptafluoropropane fire extinguishing system and an aerosol automatic fire extinguishing device. When the detection device detects a thermal runaway signal, the fire control panel 9 sends an electrical signal to the heptafluoropropane fire extinguishing system to start extinguishing the fire in the first containment cavity 108. At the same time, the alarm is activated and the alarm is triggered by the warning light 13 of the alarm box 12. The fire control panel 9 communicates with the energy management system (EMS) in real time. The battery module 6 is electrically connected to the serial control system (PCS). When the EMS receives the fire extinguishing signal, it actively cuts off the main circuit breaker and sends a signal to the PCS to stop the operation of the PCS and cut off the internal circuit breaker of the PCS, providing secondary cut-off protection for the main circuit breaker.

[0027] The temperature sensor employs a cell-level BMU for temperature detection and safety early warning. It monitors the cell temperature of battery module 6 in real time and reports it to the EMS. The EMS analyzes and detects the signal. Based on the monitoring data of hazardous gas state and cell expansion coefficient, and combined with big data analysis algorithms, it can issue a fault warning 30 minutes in advance and report it to the EMS to prevent fires.

[0028] The specific implementation involves installing multiple battery modules 6 within the first receiving cavity 108. These battery modules 6 employ a string energy storage system architecture to actively avoid inter-cluster circulation, eliminate safety hazards, and increase the system's charging and discharging capacity. A detection device, a heptafluoropropane fire extinguishing system, and an aerosol automatic fire extinguishing device are installed within the first receiving cavity 108. The detection device monitors the condition of the first receiving cavity 108 in real time, and promptly transmits any abnormal signals to the fire control panel 9. The fire control panel 9 then controls the corresponding systems for processing. When the detection device detects a thermal runaway signal, the fire control panel... 9 sends an electrical signal to the heptafluoropropane fire extinguishing system to begin extinguishing the fire in the first containment chamber 108. At the same time, the alarm is activated and the alarm is triggered by the warning light 13 in the alarm box 12. The fire control panel 9 communicates with the powerful interactive energy management system (EMS) in real time. When the EMS receives the fire extinguishing signal, it actively cuts off the main circuit breaker and sends a signal to the PCS to stop the operation of the PCS and cut off the internal circuit breaker of the PCS, providing secondary cut-off protection for the main circuit breaker. When the temperature in the first containment chamber 108 reaches the set temperature, the aerosol automatic fire extinguishing device automatically starts to extinguish the fire, with a rapid response.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An outdoor centralized energy storage cabinet, characterized in that: The system includes a frame (1), a bottom plate (101) at the bottom of the frame (1), a top plate (3) at the top of the frame (1), a first upright plate (102) on the bottom plate (101), a partition plate (103) on the side wall of the first upright plate (102), a plurality of second upright plates (104) arranged in an array on the top of the partition plate (103), the plurality of second upright plates (104), the top plate (3), the first upright plate (102) and the partition plate (103) forming a plurality of first receiving cavities (108), a battery module (6) arranged in the first receiving cavity (108), and a plurality of third upright plates (105) arranged in an array at the lower end of the partition plate (103), the plurality of third upright plates (105), the partition plate (103) and the first upright plate (102) and the base plate (101) form a plurality of second accommodating cavities (109). A main control box (5) is provided in the second accommodating cavity (109). An opening and closing door (2) is provided on the front of the frame (1). The opening and closing door (2) closes the first accommodating cavity (108) and the second accommodating cavity (109). A warning box (106) and a placement box (107) are provided on the side wall of the frame (1). The placement box (107) is located above the warning box (106). A low-voltage distribution box (8), a fire control panel (9) and a main control box (10) are provided in the placement box (107). A detection device is provided in the first accommodating cavity (108). A heptafluoropropane fire extinguishing system and an aerosol automatic fire extinguishing device are provided in the first accommodating cavity (108).

2. The outdoor centralized energy storage cabinet according to claim 1, characterized in that: A refrigeration unit (7) is provided on the side wall of the first upright plate (102) away from the partition plate (103). The refrigeration unit (7) ventilates and cools the first receiving cavity (108) and the second receiving cavity (109) through the ventilation holes on the first upright plate (102).

3. An outdoor centralized energy storage cabinet according to claim 1, characterized in that: Multiple battery modules (6) adopt a string energy storage system architecture.

4. An outdoor centralized energy storage cabinet according to claim 1, characterized in that: The warning box (106) is equipped with an alarm device, and the alarm device is equipped with a warning light (13).

5. An outdoor centralized energy storage cabinet according to claim 1, characterized in that: The bottom of the placement box (107) is provided with a cable assembly (11).

6. An outdoor centralized energy storage cabinet according to claim 1, characterized in that: The detection device includes sensors for harmful and combustible gases, temperature sensors, and smoke sensors.

7. An outdoor centralized energy storage cabinet according to claim 6, characterized in that: The temperature sensor uses a cell-level BMU for temperature detection and safety early warning.

8. An outdoor centralized energy storage cabinet according to claim 1, characterized in that: Multiple reinforcing ribs (4) are arranged in an array on the top plate (3).

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