Outdoor liquid-cooled energy storage cabinet

Abstract

The utility model discloses an outdoor liquid cooling energy storage cabinet, including energy storage cabinet cabinet, energy storage cabinet cabinet inside is equipped with electrical storehouse, battery storehouse and liquid cooling storehouse and installs the cabinet door of energy storage cabinet cabinet. Electrical storehouse is equipped with high pressure control box and electrical power supply loop. The battery module of built -in modularization is arranged in battery storehouse, and the modularization fire control system and dehumidification system are installed on the cabinet door. Liquid cooling storehouse is equipped with the liquid cooling machine for intercommunication battery storehouse and carries out liquid cooling, and the upper portion of cabinet door is equipped with the blast -resistant exhaust air outlet fan. The opening circumferential side of cabinet is equipped with waterproof flow guide groove and is equipped with sealing strip, and then cooperates with cabinet door. The non -opening portion of battery storehouse is equipped with blast -resistant exhaust air inlet fan and water fire control interface, and blast -resistant exhaust air inlet fan and water fire control interface are arranged in sequence up and down, and blast -resistant exhaust air inlet fan is used for the cooling of battery storehouse inside.

Description

Technical Field

[0001] This utility model belongs to the technical field of energy storage cabinet equipment, specifically relating to an outdoor liquid-cooled energy storage cabinet. Background Technology

[0002] Existing energy storage cabinets meet the needs of various application scenarios, requiring high heat dissipation efficiency, fast heat dissipation speed, and good temperature uniformity. However, existing energy storage cabinets are costly, and liquid-cooled energy storage cabinets, in particular, pose a risk of coolant leakage. They are not suitable for applications requiring high battery pack energy density, fast charging and discharging speeds, and large ambient temperature variations. Although existing technologies meet the needs of outdoor energy storage to some extent, they still have the following drawbacks:

[0003] (1) Low heat dissipation efficiency

[0004] Air-cooled energy storage cabinets: In high-temperature or high-load environments, air-cooling is not efficient enough, making it difficult to effectively control battery temperature, which can lead to shortened battery life or even thermal runaway.

[0005] Naturally cooled energy storage cabinets have limited heat dissipation capacity and cannot meet the demands of high-power charging and discharging. They also suffer from significant thermal management losses, resulting in low overall system efficiency.

[0006] (2) Poor environmental adaptability

[0007] Outdoor liquid-cooled energy storage cabinets are installed and used in outdoor environments, which places higher demands on outdoor protection conditions, requiring them to be waterproof, dustproof, and resistant to foreign object ingress. However, the equipment generates heat during operation, which requires ventilation to dissipate heat internally. Once ventilation is achieved, waterproofing, dustproofing, and foreign object ingress prevention cannot be maintained, creating a contradiction.

[0008] Existing technologies use air conditioning for heat dissipation or add a rainproof canopy around the cabinet, but these methods are too costly in terms of manufacturing and floor space, resulting in low economic efficiency.

[0009] Insufficient protection level: Some outdoor energy storage cabinets have low protection levels and are unable to withstand the effects of harsh environments such as rain, dust, and corrosion.

[0010] Poor temperature adaptability: The performance and reliability of existing energy storage cabinets are significantly reduced in extreme high or low temperature environments.

[0011] (3) Low level of intelligence

[0012] Lack of intelligent management: Existing energy storage cabinets mostly adopt simple control strategies, which cannot achieve real-time monitoring and optimized management of battery status.

[0013] Low charging and discharging efficiency: The temperature control system is not precise, resulting in a lot of losses. The charging and discharging process is inefficient and cannot meet the needs of complex working conditions.

[0014] (4) Insufficient security

[0015] Thermal runaway risk: Insufficient heat dissipation may cause the battery temperature to overheat, leading to thermal runaway or even fire. Without an explosion-proof system, the energy storage cabinet is at risk of explosion.

[0016] Lack of emergency protection: Some energy storage cabinets are not equipped with fire extinguishing devices, posing a safety hazard.

[0017] (5) Inconvenient maintenance

[0018] The integrated design makes maintenance inconvenient and requires extensive disassembly. After maintenance, numerous reassemblies are needed, and incorrect installation can easily lead to malfunctions. Utility Model Content

[0019] The purpose of this invention is to solve the above problems and provide an outdoor liquid-cooled energy storage cabinet with high heat dissipation efficiency, good adaptability, high safety and convenient maintenance.

[0020] To solve the above-mentioned technical problems, the technical solution of this utility model is: an outdoor liquid-cooled energy storage cabinet, including an energy storage cabinet body, an electrical compartment, a battery compartment, and a liquid-cooling compartment inside the energy storage cabinet body, as well as a cabinet door installed on the energy storage cabinet body. The electrical compartment is equipped with a high-voltage control box and an electrical power supply circuit; the battery compartment has built-in modular battery modules, and the cabinet door is equipped with a modular fire protection system and a dehumidification system; the liquid-cooling compartment is equipped with a liquid chiller for connecting to the battery compartment for liquid cooling; the upper part of the cabinet door is equipped with an explosion-proof exhaust fan; the opening of the cabinet body is equipped with a waterproof guide groove and a sealing strip around its perimeter, which cooperates with the cabinet door; the non-opening part of the battery compartment is equipped with an explosion-proof exhaust fan and a water fire protection interface, which are arranged sequentially vertically, and the explosion-proof exhaust fan is used to cool the inside of the battery compartment.

[0021] Preferably, the liquid cooler is connected to the liquid cooling chamber and the battery chamber via a liquid cooling pipe, and the liquid cooler and the battery module are electrically connected.

[0022] Preferably, the cabinet door is connected to the cabinet body via hinges.

[0023] Preferably, the cabinets of the electrical compartment, liquid cooling compartment, and battery compartment are all equipped with mutually compatible waterproof drainage channels and sealing strips for the protection of the entire cabinet.

[0024] Preferably, the electrical compartment and battery compartment have openings at the bottom for connecting electrical cables.

[0025] Preferably, the top of the energy storage cabinet is provided with lifting lugs for hoisting the equipment.

[0026] Preferably, the liquid cooling pipe is an insulated liquid cooling pipe, with the outside of the liquid cooling pipe wrapped with heat insulation cotton to insulate it from the external environment and enhance heat dissipation efficiency.

[0027] Preferably, the energy storage cabinet is made of high-strength material and adopts a fully sealed design to improve the protection level. The energy storage cabinet adopts a sandwich design, with the internal sandwich layer made of heat insulation cotton, which can effectively isolate the temperature inside the cabinet from the outside temperature.

[0028] The beneficial effects of this utility model are:

[0029] 1. This utility model provides an outdoor liquid-cooled energy storage cabinet, which features efficient heat dissipation and extended battery life. The liquid cooling system, through coolant circulation and a radiator, can quickly dissipate the heat generated by the battery, achieving efficient heat dissipation and solving the problems of low efficiency in traditional air cooling and natural cooling. It keeps the battery within its optimal operating temperature range (typically 20℃-40℃), thus improving battery lifespan.

[0030] 2. This utility model can adapt to harsh outdoor environments. The outer shell of the energy storage cabinet is made of high-strength steel and features a sealed design, achieving an overall protection level of IP54. This effectively prevents the intrusion of rainwater, dust, and corrosive gases, and has passed the IP54 protection level test. The cabinet's inner lining is designed with heat-insulating cotton, achieving an IP54 protection level and isolating it from ambient temperature, enabling it to adapt to various harsh outdoor environments. This effectively solves the problem of poor environmental adaptability of traditional energy storage cabinets.

[0031] 3. The outdoor liquid-cooled energy storage cabinet provided by this utility model overcomes the contradiction between heat dissipation and ventilation and protection. It achieves battery heat dissipation through liquid cooling unit and liquid cooling pipeline. The liquid cooling unit is placed in the liquid cooling chamber. The battery chamber and electrical chamber are completely sealed, effectively solving the problem of water ingress protection.

[0032] 4. Improved energy utilization: The outdoor liquid-cooled energy storage cabinet provided by this utility model incorporates a battery management system that integrates cell temperature control with a temperature control system. When the cell operating temperature is within the optimal operating temperature range, the temperature control system remains in standby mode, consuming very little power. This effectively reduces the auxiliary power consumption of the entire system and improves the energy utilization efficiency of the product. The outdoor liquid-cooled energy storage cabinet provided by this utility model has a simple structure, small footprint, reduced manufacturing costs, and improved economic benefits.

[0033] 5. This utility model is equipped with an active fire suppression system that monitors the fire status in real time, enabling proactive prevention and control, and ensuring the safe operation of the system. It effectively solves the problem of insufficient safety. This utility model features triple fire protection: PACK fire suppression, cabinet-level fire suppression, and water fire suppression, further enhancing the system's safety.

[0034] 6. Conventional integrated energy storage systems are integrally molded, making installation and maintenance inconvenient. This utility model's outdoor liquid-cooled energy storage cabinet adopts a compartmentalized and modular design, enabling rapid installation and maintenance. Attached Figure Description

[0035] Figure 1 This is a structural schematic diagram of an outdoor liquid-cooled energy storage cabinet according to this utility model;

[0036] Figure 2 This is a rear view structural schematic diagram of an outdoor liquid-cooled energy storage cabinet according to this utility model;

[0037] Figure 3 This is a schematic diagram of the cabinet door of an outdoor liquid-cooled energy storage cabinet in the open state according to this utility model;

[0038] Figure 4 This is a structural schematic diagram of the fire protection system of this utility model;

[0039] Figure 5 This is a partial structural schematic diagram of the waterproof drainage channel of this utility model;

[0040] Figure 6 This is a schematic diagram of the hinge structure of this utility model;

[0041] Figure 7 This is a schematic diagram of the installation position of the lifting lugs of this utility model;

[0042] Figure 8 This is a partial schematic diagram of the bottom opening structure of the electrical compartment and battery compartment of the present invention.

[0043] Explanation of reference numerals in the attached diagram: 1. Electrical compartment; 2. Battery compartment; 3. Liquid cooling compartment; 4. Energy storage cabinet body; 5. Cabinet door; 6. High-voltage control box; 7. Electrical power supply circuit; 8. Battery module; 9. Fire protection system; 10. Dehumidification system; 11. Liquid chiller; 12. Explosion-proof exhaust outlet fan; 13. Waterproof guide channel; 14. Sealing strip; 15. Explosion-proof exhaust inlet fan; 16. Water fire protection interface; 17. Liquid cooling pipe; 18. Hinge; 19. Lifting lug; 20. Opening; 9.1. Temperature detector; 9.2. Smoke detector; 9.3. Audible and visual alarm; 9.4. H2 detector; 9.5. Fire extinguishing device; 18.1. Rotating mechanism; 18.2. Connecting rod; 18.3. Locking mechanism. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0045] like Figures 1 to 8As shown, this utility model provides an outdoor liquid-cooled energy storage cabinet, including a cabinet body 4. The cabinet body 4 contains an electrical compartment 1, a battery compartment 2, and a liquid-cooled compartment 3, as well as a cabinet door 5 installed on the cabinet body 4. The electrical compartment 1 is equipped with a high-voltage control box 6 and an electrical power supply circuit 7. The battery compartment 2 houses modular battery modules 8, and the cabinet door 5 is equipped with a modular fire suppression system 9 and a dehumidification system 10. The liquid-cooled compartment 3 is equipped with a liquid chiller 11 for liquid cooling of the battery compartment 2; the upper part of the cabinet door 5 is equipped with an explosion-proof exhaust fan 12. The opening of the cabinet body 4 has a waterproof guide groove 13 and a sealing strip 14 around its perimeter, which cooperates with the cabinet door 5. The non-opening part of the battery compartment 2 is equipped with an explosion-proof exhaust fan 15 and a water fire suppression interface 16, arranged sequentially vertically. The explosion-proof exhaust fan 15 is used to cool the interior of the battery compartment 2.

[0046] The energy storage cabinet 4 has a rectangular parallelepiped structure, and its interior is divided into compartments with different functions by metal partitions. In this embodiment, the metal partitions are plate-like structures.

[0047] The high-voltage control box 6 in electrical compartment 1 is electrically connected to the battery module 8 via an electrical power supply circuit 7. The electrical power supply circuit 7 is an existing connection interface, equipped with a power interface and a communication interface. There are at least two power interfaces, which are respectively connected to the battery module 8 and an external power supply circuit. The communication interface is an existing CAN communication / RS485 / LAN interface. In this embodiment, the high-voltage control box 6 is a mature existing technology device, model: PDU-1500-250-L-UC.

[0048] The battery module 8 installed in battery compartment 2 is an existing battery device, model TEM-166.4-315-Y. Liquid chiller 11 connects liquid cooling chamber 3 and battery compartment 2 via liquid cooling pipe 17, and is electrically connected to battery module 8. Liquid chiller 11 cools both liquid cooling chamber 3 and battery compartment 2. In this embodiment, liquid chiller 11 is an existing 9kW cooling capacity chiller.

[0049] Cabinet door 5 is connected to cabinet body 4 via hinge 18. Hinges 18 allow cabinet door 5 to rotate relative to cabinet body 4, thus enabling cabinet door 5 to open and close.

[0050] The hinge 18 includes a rotating mechanism 18.1, a connecting rod 18.2, and a locking mechanism 18.3. The two ends of the connecting rod 18.2 are connected to the rotating mechanism 18.1 and the locking mechanism 18.3, respectively. In this embodiment, the rotating mechanism 18.1, the connecting rod 18.2, and the locking mechanism 18.3 constitute a conventional hinge device, model MS828-1F-1P.

[0051] The fire protection system 9 includes a heat detector 9.1, a smoke detector 9.2, an audible and visual alarm 9.3, an H2 detector 9.4, and a fire extinguishing device 9.5. Heat detectors 9.1 and 9.2 are arranged vertically; audible and visual alarms 9.3 and 9.4 are also arranged vertically; and the fire extinguishing device 9.5 is arranged parallel to the audible and visual alarm 9.3. Heat detector 9.1 is existing equipment, model: DCD-135V. Smoke detector 9.2 is existing equipment, model: SOE-24V. Audible and visual alarm 9.3 is existing equipment, model: FHS-400-RR. H2 detector 9.4 is existing equipment, model: Xgard TYPE 5. Fire extinguishing device 9.5 is existing equipment, model: JAD300-U01.

[0052] The dehumidification system 10 includes a dehumidifier used for dehumidification. The dehumidifier is a readily available and mature technology device, model ADSBD-500ML (DC24V).

[0053] The cabinets of electrical compartment 1, liquid cooling compartment 3, and battery compartment 2 are all equipped with mutually compatible waterproof drainage channels 13 and sealing strips 14 for the protection of the entire cabinet. In this embodiment, the waterproof drainage channel 13 has a groove structure, and the sealing strip 14 is located inside the waterproof drainage channel 13. When the cabinet door 5 is closed, the sealing strip 14 can play a sealing role.

[0054] The bottom of the electrical compartment 1 and the battery compartment 2 are provided with openings 20, which connect the bottom of the electrical compartment 1 and the bottom of the battery compartment 2 for the connection of electrical cables.

[0055] The top of the energy storage cabinet 4 is equipped with a lifting lug 19, which is welded to the cabinet 4 and used for hoisting the equipment. In this embodiment, the top of the energy storage cabinet 4 has a recessed area with a trapezoidal cross-section. The lifting lug 19 is located inside the recessed area and is fixedly connected to the cabinet 4. The lifting lug 19 is a block structure with a trapezoidal cross-section. A through hole is provided in the middle of the lifting lug 19, through which external equipment is connected to the lifting lug 19 to complete the hoisting operation.

[0056] Liquid cooling pipe 17 is an insulated liquid cooling pipe. The outside of liquid cooling pipe 17 is wrapped with heat insulation cotton to insulate it from the external environment and enhance heat dissipation efficiency.

[0057] Coolant flows through the liquid cooling pipe 17 and exchanges heat with the outside through the liquid chiller 11. The liquid cooling pipe 17 itself is thermally separated from the outside to avoid heat loss.

[0058] The energy storage cabinet body 4 is made of high-strength materials and adopts a fully sealed design to improve the protection level. The energy storage cabinet body 4 adopts a sandwich design, with the internal sandwich layer using heat insulation cotton, which can effectively isolate the temperature inside the cabinet from the outside temperature. In this embodiment, the high-strength material refers to 1.5mm thick cold-rolled steel plate.

[0059] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. An outdoor liquid-cooled energy storage cabinet, characterized in that: The system includes an energy storage cabinet (4), which contains an electrical compartment (1), a battery compartment (2), and a liquid cooling compartment (3), as well as a cabinet door (5) installed on the cabinet (4). The electrical compartment (1) is equipped with a high-voltage control box (6) and an electrical power supply circuit (7). The battery compartment (2) contains modular battery modules (8), and the cabinet door (5) is equipped with a modular fire protection system (9) and a dehumidification system (10). The liquid cooling compartment (3) is equipped with a liquid cooling system for connecting the battery compartment (2) for liquid cooling. The cabinet door (5) is equipped with an explosion-proof exhaust fan (12) at the top; the cabinet body (4) is equipped with a waterproof guide groove (13) and a sealing strip (14) around the opening, which is then matched with the cabinet door (5); the non-opening part of the battery compartment (2) is equipped with an explosion-proof exhaust fan (15) and a water fire-fighting interface (16), which are arranged vertically in sequence. The explosion-proof exhaust fan (15) is used to cool the inside of the battery compartment (2).

2. The outdoor liquid-cooled energy storage cabinet according to claim 1, characterized in that: The liquid cooler (11) is connected to the liquid cooling chamber (3) and the battery chamber (2) through the liquid cooling pipe (17), and the liquid cooler (11) and the battery module (8) are electrically connected.

3. An outdoor liquid-cooled energy storage cabinet according to claim 1, characterized in that: The cabinet door (5) is connected to the cabinet body (4) via a hinge (18).

4. An outdoor liquid-cooled energy storage cabinet according to claim 1, characterized in that: The cabinets of the electrical compartment (1), liquid cooling compartment (3) and battery compartment (2) are all equipped with mutually compatible waterproof drainage channels (13) and sealing strips (14) for the protection of the entire cabinet.

5. An outdoor liquid-cooled energy storage cabinet according to claim 1, characterized in that: The electrical compartment (1) and battery compartment (2) are provided with openings at the bottom for connecting electrical cables.

6. An outdoor liquid-cooled energy storage cabinet according to claim 1, characterized in that: The top of the energy storage cabinet (4) is provided with lifting lugs (19) for hoisting the equipment.

7. An outdoor liquid-cooled energy storage cabinet according to claim 2, characterized in that: The liquid cooling pipe (17) is an insulated liquid cooling pipe. The liquid cooling pipe (17) is wrapped with heat insulation cotton to insulate it from the external environment and enhance its heat dissipation efficiency.

8. An outdoor liquid-cooled energy storage cabinet according to claim 1, characterized in that: The energy storage cabinet (4) is made of high-strength materials and is fully sealed to improve the protection level. The energy storage cabinet (4) adopts a sandwich design, and the internal sandwich is made of heat insulation cotton, which can effectively isolate the temperature inside the cabinet from the outside temperature.

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