Temperature control energy storage cabinet

Abstract

This utility model belongs to the field of energy storage cabinet technology, and particularly relates to a temperature-controlled energy storage cabinet. The cabinet includes a cabinet body and internal electrical units, a temperature control unit, and a fire suppression unit. The internal cabinet body is divided into an electrical compartment and a battery compartment. The temperature control unit includes a liquid cooler and a temperature control board. The liquid cooler and the temperature control board are connected by cooling pipes through which a cooling medium flows. The liquid cooler is located within the electrical compartment, and the temperature control board is located within the battery compartment and supported below the electrical unit. This temperature-controlled energy storage cabinet, through a rationally designed layout within the cabinet, separates the electrical unit and the battery pack. It effectively controls the overall temperature of the battery pack, maintaining it at a suitable operating temperature. By installing a temperature control board outside the battery pack, the temperature can be adjusted in real time, ensuring that the battery temperature remains within the ideal range and minimizing temperature differences between individual batteries, thereby protecting the batteries and ensuring their safe operation.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage cabinet technology, and in particular relates to a temperature-controlled energy storage cabinet. Background Technology

[0002] With the continuous growth of energy demand and the increasing emphasis on renewable energy, energy storage technology has gradually become a key component. As an integrated energy storage device, energy storage cabinet systems play the following roles: improving energy utilization efficiency, ensuring stable power supply, promoting the development of renewable energy, reducing electricity costs, and optimizing energy allocation.

[0003] Therefore, devices and machines using energy storage batteries and storage cabinets as core energy sources are gradually entering our daily lives. The battery packs in the storage cabinets have high temperature requirements during use; excessively high temperatures can cause irreversible damage to the batteries, making temperature management of the battery packs particularly important. Current temperature management technologies mainly divide into air cooling and water cooling. Air-cooled equipment occupies a large space and has high duct costs. Furthermore, the large gaps between batteries in air-cooled battery packs result in low energy density. Therefore, water-cooled equipment for battery packs has become a research hotspot. However, water-cooled equipment typically requires simultaneous control of multiple batteries, leading to high costs, complex overall structures, long liquid cooling pipes, uneven coolant temperature within the pipes, and difficulty in controlling temperature performance, all of which negatively impact the energy utilization rate of the battery pack. Utility Model Content

[0004] The purpose of this utility model is to provide a temperature-controlled energy storage cabinet to address the shortcomings of existing technologies. The cabinet includes an electrical unit, a temperature control unit, and a fire protection unit. The cabinet is divided into an electrical compartment and a battery compartment. The electrical unit is divided into a battery pack and a high-voltage box. The battery pack and the high-voltage box are electrically connected to each other. The battery pack is located in the battery compartment, and the high-voltage box is located in the electrical compartment.

[0005] The temperature control unit includes a liquid cooler and a temperature control board. The liquid cooler and the temperature control board are connected by a cooling pipe. A cooling medium flows through the cooling pipe. The liquid cooler is located in the electrical compartment, and the temperature control board is located in the battery compartment and supported below the battery pack.

[0006] The fire protection unit includes a detection device and a fire protection device. The detection device is located inside the cabinet, and the fire protection device is located outside the battery pack.

[0007] By rationally designing and planning the layout within the cabinet, the electrical units and battery packs are separated. This allows for effective control of the overall temperature of the battery packs, maintaining them at a suitable operating temperature. A temperature control board installed outside the battery packs allows for real-time temperature adjustment, ensuring the battery temperature remains within the ideal range and minimizing temperature differences between individual batteries, thus protecting the batteries and ensuring safe operation. The liquid cooling unit controls the circulation of the cooling medium within the cooling plate to regulate the temperature of the corresponding battery pack on the cooling plate. The cooling medium has a high heat transfer coefficient, large heat capacity, and faster cooling speed. High temperatures and high-rate charging / discharging can easily cause battery overheating, which can lead to thermal runaway, or even fire and explosion. The temperature control unit provides timely cooling, and the fire suppression unit continuously monitors and inspects, effectively improving the performance and extending the lifespan of the battery packs, and preventing accidents.

[0008] Preferably, the battery compartment is provided with a plurality of battery racks, the temperature control plate is fixed on the battery racks, and the battery pack is placed on the temperature control plate. In this invention, multiple battery racks are arranged to accommodate multiple temperature control plates, which are then fixed within the battery racks. Different numbers of temperature control plates and their battery packs can be set according to actual production needs to meet different capacity requirements.

[0009] Preferably, the temperature control plate includes a water inlet, a water outlet, and a flow guide channel. The flow guide channel is located inside the temperature control plate, and the cooling pipes are connected to the water inlet and the water outlet. The cooling medium flows within the flow guide channel. By rationally setting the shape and direction of the flow guide channel, the temperature control plate can more quickly change the temperature of the battery pack, maintaining the battery pack at a suitable operating temperature.

[0010] Preferably, a self-sealing joint is provided at the junction of the cooling pipe and the temperature control plate. This self-sealing joint allows for quick installation and disassembly of the cooling pipe while ensuring the airtight flow of the cooling medium and preventing leaks.

[0011] Preferably, the battery pack includes several batteries, which are electrically connected in series or parallel via quick-connect wiring harnesses. The battery pack is electrically connected to the high-voltage box, which serves as the main high and low voltage output interface. In this invention, different numbers of batteries can be set according to production needs, and each battery can be fixed to the temperature control board.

[0012] Preferably, the fire-fighting device includes an aerosol fire extinguishing device or a perfluorohexanone gas fire extinguishing device, and the detection device includes a temperature detector and a smoke detector. The temperature and smoke detectors monitor the temperature changes inside the cabinet in real time. When a temperature exceeding the safe limit or smoke is detected, the corresponding fire-fighting device is activated. It can be configured as an aerosol fire extinguishing device or a perfluorohexanone gas fire extinguishing device as needed. The extinguishing agent in the perfluorohexanone gas fire extinguishing device is released into the cabinet through nozzles to extinguish the fire. The specialized nozzle design ensures the atomization effect of the extinguishing agent, causing it to rapidly evaporate and absorb heat, fully utilizing its complete fire extinguishing effect. The extinguishing agent is released in gaseous form, thus filling all equipment space.

[0013] Preferably, the aerosol fire extinguishing device includes an automatic thermal aerosol fire extinguishing device electrically connected to the temperature detector and the smoke detector; it also includes a manual control box electrically connected to the automatic thermal aerosol fire extinguishing device. The aerosol fire extinguishing device utilizes a chemical reaction generated by the gas to release aerosol particles dissolved in the gas, forming a mist-like substance that dilutes the oxygen around the flame and lowers the temperature, thereby achieving the purpose of extinguishing the fire.

[0014] Preferably, the perfluorohexanone gas fire extinguishing device includes a perfluorohexanone fire extinguishing control panel and a spray pipe connected to it. The end of the spray pipe is equipped with a control valve and a nozzle. The extinguishing agent within the perfluorohexanone gas fire extinguishing device is released into the cabinet through the nozzle to extinguish the fire. The specialized nozzle design ensures the atomization effect of the extinguishing agent, causing it to rapidly evaporate and absorb heat, thus maximizing its complete fire extinguishing effect. The extinguishing agent is released in gaseous form, thereby filling all equipment space.

[0015] Preferably, the fire protection unit further includes an audible and visual alarm, which is electrically connected to the detection device. When the detection device detects an unexpected hazard inside the cabinet, it simultaneously activates the audible and visual alarm to alert personnel to take emergency measures or evacuate in a timely manner.

[0016] Preferably, the cabinet is also equipped with a dehumidification device. This is suitable for use in relatively humid environments, quickly drying the inside of the cabinet, reducing humidity, and preventing short circuits or other dangerous accidents caused by excessive humidity in the battery pack.

[0017] Compared to existing technologies, the advantages of this utility model are as follows: This utility model provides a temperature-controlled energy storage cabinet. Through a rational design and layout within the cabinet, the electrical units and battery packs are separated. The overall temperature of the battery packs can be effectively controlled, maintaining them at a suitable operating temperature. By installing a temperature control plate outside the battery packs, the temperature can be adjusted in real time, ensuring that the battery temperature is always within the ideal range and minimizing temperature differences between individual batteries, thereby protecting the batteries and ensuring their safe operation. The temperature of the corresponding battery packs on the cooling plate is adjusted by controlling the circulation of the cooling medium in the cooling plate using a liquid cooling unit. The cooling medium has a high heat transfer coefficient, large heat capacity, and faster cooling speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cabinet structure of this utility model.

[0020] Figure 3 This is an assembly diagram of the battery pack and temperature control board of this utility model.

[0021] Figure 4 This is a schematic diagram of the temperature control board structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the temperature control unit structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the fire protection unit structure of Embodiment 1 of this utility model.

[0024] Figure 7 This is a schematic diagram of the fire protection unit structure of Embodiment 2 of this utility model.

[0025] Figure label:

[0026] 1. Cabinet; 11. Electrical compartment; 12. Battery compartment; 13. Battery rack; 14. Dehumidifier.

[0027] 2. Electrical unit; 21. Battery pack; 22. High voltage box;

[0028] 3. Temperature control unit; 31. Liquid cooling unit; 32. Temperature control board; 321. Water inlet; 322. Water outlet; 323. Flow guide channel; 324. Self-sealing joint; 33. Cooling pipes.

[0029] 4. Firefighting unit; 41. Detection device; 42. Firefighting device; 43. Aerosol extinguishing device; 44. Perfluorohexanone gas extinguishing device; 441. Perfluorohexanone fire control panel; 442. Spray pipeline; 443. Sub-control valve; 444. Nozzle; 45. Temperature detector; 46. Smoke detector; 47. Audible and visual alarm. Detailed Implementation

[0030] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Example 1:

[0032] like Figure 1-5 As shown, in this embodiment, the temperature-controlled energy storage cabinet includes a cabinet body 1 and an electrical unit 2, a temperature control unit 3, and a fire suppression unit 4 within it. The cabinet body 1 is divided into an electrical compartment 11 and a battery compartment 12. The electrical unit 2 includes a battery pack 21 and a high-voltage box 22. The battery pack 21 and the high-voltage box 22 are electrically connected to each other. The battery pack 21 is located in the battery compartment 12, and the high-voltage box 22 is located in the electrical compartment 11. The high-voltage box 22 serves as the overall high and low voltage output interface. The individual batteries of the battery pack 21 are connected to each other using quick-connect wiring harnesses to achieve high and low voltage connections, which are then uniformly input into the high-voltage box 22. The high-voltage box 22 can systematically transmit and distribute the electrical energy stored in the battery pack 21 between different devices and links. It can transmit electrical energy at a higher voltage level, reduce energy loss, and improve transmission efficiency. The high-voltage box can integrate the electrical energy from the battery pack 21 and distribute it to the power grid or specific loads as needed. This ensures that electrical energy flows efficiently throughout the energy storage system, meeting the needs of different application scenarios.

[0033] The temperature control unit 3 includes a liquid cooler 31 and a temperature control board 32. The liquid cooler 31 and the temperature control board 32 are connected by a cooling pipe 33 through which a cooling medium flows. The liquid cooler 31 is located inside the electrical compartment 11, and the temperature control board 32 is located inside the battery compartment 12 and supported below the battery pack 21. The liquid cooler 31 cools or heats the battery pack 21 inside the battery compartment 12, maintaining it at a suitable operating temperature for various applications. The cooling medium in the liquid cooler 31 can quickly remove high-density heat, keeping the temperature difference inside the battery compartment 12 at a low level, maintaining a constant operating temperature for the battery pack 21, effectively extending the battery pack 21's lifespan, and improving equipment reliability. The temperature control board 32 reduces the space and volume occupied by the overall heat dissipation system, making it suitable for highly integrated energy storage systems and increasing the density of energy storage modules.

[0034] In this embodiment, the battery compartment 12 is provided with several battery racks 13, a temperature control board 32 is fixed on the battery racks 13, and the battery pack 21 is placed on the temperature control board 32. The battery pack 21 includes several batteries, which are electrically connected in series or parallel via quick-connect wiring harnesses. The battery pack 21 is electrically connected to the high-voltage box 22, which serves as the overall high and low voltage output interface. Figure 1 As shown, the battery compartment 12 has eight battery racks 13, each of which has a temperature control plate 32 fixed on it, and a battery is placed on the temperature control plate 32. The eight batteries are connected in series by quick-connect wiring harness to form a battery pack 21, which is then connected to the battery box to realize the storage and output of electrical energy.

[0035] The aforementioned temperature control plate 32 includes an inlet 321, an outlet 322, and a guide channel 323. The guide channel 323 is located inside the temperature control plate 32. The cooling pipe 33 is connected to the inlet 321 and the outlet 322, and the cooling medium flows within the guide channel 323. A self-sealing joint 324 is provided at the junction of the cooling pipe 33 and the temperature control plate 32. As shown in the figure, the cooling pipe 33 is divided into a main line that connects to the liquid cooling unit 31 and a branch line that connects to the temperature control board 32. The pipe interfaces extending from the branch line are connected to the water inlet 321 and water outlet 322 on the temperature control board 32 through the self-sealing joint 324. The cooling medium flows from the liquid cooling unit 31 into the guide groove 323 of the temperature control board 32 through the cooling pipe 33, realizing heat exchange between the battery pack 21 which is in close contact with the temperature control board 32, so as to maintain the constant operating temperature of the battery pack 21, significantly reducing the safety risks caused by local overheating and improving the safety of the overall energy storage system.

[0036] The fire protection unit 4 includes a detection device 41 and a fire-fighting device 42. The detection device 41 is located inside the cabinet 1, and the fire-fighting device 42 is located outside the battery pack 21. The detection device 41 is used to monitor the internal temperature of the cabinet 1 in real time to determine whether the battery pack 21 inside the cabinet 1 has overheated or even caught fire or exploded. The feedback from the detection device 41 controls the activation of the fire-fighting device 42 to promptly extinguish any fires that may occur in the battery pack 21.

[0037] like Figure 6 As shown, in this embodiment, the fire-fighting device 42 includes an aerosol fire extinguishing device 43, and the detection device 41 includes a heat detector 45 and a smoke detector 46. The aerosol fire extinguishing device 43 includes an automatic thermal aerosol fire extinguishing device electrically connected to the heat detector 45 and the smoke detector 46; the manual control box is electrically connected to the automatic thermal aerosol fire extinguishing device. The fire-fighting unit 4 also includes a manual control box and an audible and visual alarm 47. The manual control box (not shown in the figure) is electrically connected to the automatic thermal aerosol fire extinguishing device, and the audible and visual alarm 47 is electrically connected to the detection device 41.

[0038] The aerosol fire extinguishing device 43 is a device that uses aerosol technology to extinguish fires. It achieves its extinguishing effect by generating aerosols. The working principle of the aerosol fire extinguishing device 43 is that the solid extinguishing particle generator inside rapidly decomposes under the action of the gas-generating agent, releasing a large amount of highly effective extinguishing substances. These substances can quickly fill the protected space, achieving rapid fire extinguishing. Aerosol fire extinguishers are lightweight and highly portable, and because they are stored without pressure, they do not require frequent annual inspections and maintenance. They have very high extinguishing efficiency and are suitable for various types of fires, including electrical fires, solid surface fires, and liquid fires.

[0039] Specifically, the automatic thermal aerosol fire extinguishing device contains a high-pressure container filled with flammable solid powder. When the aerosol fire extinguishing device 43 is activated, the internal circuitry converts electrical signals into energy, triggering an internal chemical reaction that generates the high temperatures required for combustion. Simultaneously, the solid powder inside the container ignites instantly, releasing a large amount of thermal aerosol. The ambient temperature rises rapidly, creating a thermal concentration zone that dilutes the oxygen around the fire source to a non-flammable concentration, thereby extinguishing the fire.

[0040] When the aerosol fire extinguishing device 43 receives emergency signals from the smoke detector 46 and the heat detector 45, the controller outputs a 30-second delayed start signal to automatically activate the thermal aerosol automatic fire extinguishing device. After activation, the thermal aerosol automatic fire extinguishing device will send a release signal to the audible and visual alarm 47, illuminating the release indicator light and emitting a buzzer alarm to warn personnel not to enter the fire zone. The manual control box is used for emergency activation or deactivation of the thermal aerosol automatic fire extinguishing device. Regardless of whether the detection device 41 is in automatic or manual mode, pressing the manual control box will activate the thermal aerosol automatic fire extinguishing device in an emergency.

[0041] The cabinet 1 is equipped with a dehumidifier 14. High humidity inside the cabinet 1 often leads to equipment corrosion, short circuits, and performance degradation. Therefore, the dehumidifier 14 is a crucial component ensuring the normal operation of the energy storage cabinet. The main purpose of the dehumidifier 14 is to regulate the humidity level within the cabinet 1, ensuring stable equipment operation. The basic operating procedure of the dehumidifier 14 includes detecting the humidity inside the cabinet; if it exceeds the set value, the dehumidifier 14 is activated, reducing the humidity to within the set value, thus maintaining it within an appropriate humidity range. The dehumidifier 14 allows for real-time monitoring of the humidity inside the cabinet 1. Users can set upper and lower humidity limits according to specific needs. Once the humidity exceeds the set range, the dehumidifier 14 will automatically activate and quickly adjust to the ideal humidity value. This precise control effectively prevents equipment malfunctions caused by moisture.

[0042] Example 2:

[0043] like Figure 1-5As shown, in this embodiment, the rest are the same as in embodiment 1, except that the fire unit 4 uses a perfluorohexanone gas fire extinguishing device 44. As shown in the figure, the perfluorohexanone gas fire extinguishing device 44 includes a perfluorohexanone fire control panel 441 and a spray pipe 442 connected to it. The end of the spray pipe 442 is equipped with a sub-control valve 443 and a nozzle 444. Figure 7 As shown.

[0044] During the fire extinguishing process, the heat-sensitive wires wrapped around various ignition points inside cabinet 1 detect the fire, and the sub-control valve 443 of the fire extinguishing device is opened. The extinguishing agent in the fire control panel is released through the spray pipe 442 and nozzles 444 to the corresponding fire points inside the cabinet for extinguishing. Each individual battery in the battery compartment 12 is equipped with a corresponding nozzle 444. The dedicated nozzle 444 design ensures the atomization effect of the extinguishing agent, causing the extinguishing agent to rapidly evaporate and absorb heat, thus fully exerting its complete extinguishing effect. The extinguishing agent is released in gaseous form, thereby filling the equipment space of cabinet 1 or the corresponding battery.

[0045] The extinguishing agent in this embodiment is perfluorohexanone, a fluorinated ketone compound that is a clear, colorless, and odorless liquid at room temperature. Its clear, colorless, and odorless liquid properties make it easy to store and handle. It is typically superpressurized with nitrogen and stored in high-pressure cylinders as part of a fire extinguishing system. The non-conductive and residue-free nature of perfluorohexanone ensures that it will not damage sensitive equipment such as electronic devices after extinguishing a fire, nor will it contaminate protected objects such as paper documents. The physical properties of perfluorohexanone give it a significant vaporization capacity, achieving effective fire extinguishing primarily through an endothermic mechanism. Compared to water, the heat of vaporization of perfluorohexanone is only 1 / 25 that of water, while its vapor pressure is 25 times that of water. These characteristics promote its rapid vaporization and diffusion during the fire extinguishing process.

[0046] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A temperature-controlled energy storage cabinet, characterized in that: The cabinet (1) includes an electrical unit (2), a temperature control unit (3), and a fire protection unit (4) inside it. The cabinet (1) is divided into an electrical compartment (11) and a battery compartment (12). The electrical unit (2) is divided into a battery pack (21) and a high-voltage box (22). The battery pack (21) and the high-voltage box (22) are electrically connected to each other. The battery pack (21) is located in the battery compartment (12), and the high-voltage box (22) is located in the electrical compartment (11). The temperature control unit (3) includes a liquid cooler (31) and a temperature control plate (32). The liquid cooler (31) and the temperature control plate (32) are connected by a cooling pipe (33). A cooling medium flows through the cooling pipe (33). The liquid cooler (31) is located in the electrical compartment (11), and the temperature control plate (32) is located in the battery compartment (12) and supported below the battery pack (21). The fire protection unit (4) includes a detection device (41) and a fire protection device (42). The detection device (41) is located inside the cabinet (1), and the fire protection device (42) is located outside the battery pack (21).

2. The temperature-controlled energy storage cabinet according to claim 1, characterized in that: The battery compartment (12) is provided with several battery racks (13), the temperature control plate (32) is fixed on the battery racks (13), and the battery pack (21) is placed on the temperature control plate (32).

3. The temperature-controlled energy storage cabinet according to claim 2, characterized in that: The temperature control plate (32) includes an inlet (321), an outlet (322), and a guide channel (323). The guide channel (323) is located inside the temperature control plate (32). The cooling pipe (33) is connected to the inlet (321) and the outlet (322), and the cooling medium flows in the guide channel (323).

4. The temperature-controlled energy storage cabinet according to claim 3, characterized in that: A self-sealing joint (324) is provided at the junction of the cooling pipe (33) and the temperature control plate (32).

5. The temperature-controlled energy storage cabinet according to claim 1, characterized in that: The battery pack (21) includes several batteries, which are electrically connected in series or in parallel through quick-connect harnesses. The battery pack (21) is electrically connected to the high voltage box (22), which serves as the main high and low voltage output interface.

6. The temperature-controlled energy storage cabinet according to claim 1, characterized in that: The fire-fighting device (42) includes an aerosol fire extinguishing device (43) or a perfluorohexanone gas fire extinguishing device (44), and the detection device (41) includes a heat detector (45) and a smoke detector (46).

7. The temperature-controlled energy storage cabinet according to claim 6, characterized in that: The aerosol fire extinguishing device (43) includes an automatic thermal aerosol fire extinguishing device electrically connected to the heat detector (45) and the smoke detector (46); it also includes an audible and visual alarm (47) electrically connected to the automatic thermal aerosol fire extinguishing device.

8. The temperature-controlled energy storage cabinet according to claim 6, characterized in that: The perfluorohexanone gas fire extinguishing device (44) includes a perfluorohexanone fire control unit (441) and a spray pipe (442) connected thereto. The end of the spray pipe (442) is provided with a sub-control valve (443) and a nozzle (444).

9. The temperature-controlled energy storage cabinet according to claim 1, characterized in that: The cabinet (1) is also equipped with a dehumidification device (14).

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