Liquid-cooled energy storage device

Abstract

The utility model discloses a liquid -cooled energy storage device, including the cabinet body of cabinet, the inside of cabinet body is fixed with first baffle and second baffle from top to bottom in proper order, the inside of cabinet body is divided into battery compartment, electrical compartment and heat dissipation storehouse by first baffle, second baffle, the inside installation of battery compartment has battery pack, fire -fighting water pipe, battery cabin space composite detector, puncture and spray integrated valve, illuminating lamp, travel switch, the inside of electrical compartment is equipped with distribution high -voltage integrated box, energy storage converter, uninterruptible power supply and fire suppression device through support, the inside installation of heat dissipation storehouse has liquid -cooled unit. The utility model whole adopts three storehouses design, divides upper middle lower three storehouses, wherein the uppermost is battery compartment, the middle is electrical compartment, the lowermost is heat dissipation storehouse, and the heat dissipation effect is better, and the safety is improved, and the overall size can reduce, and the application scene is wider.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, and in particular to a liquid-cooled energy storage device. Background Technology

[0002] Liquid-cooled commercial and industrial cabinets are small energy storage devices primarily used in businesses. Traditional liquid-cooled commercial and industrial cabinets have a two-compartment design, with the electrical compartment and the heat dissipation compartment connected together. This design has the following disadvantages:

[0003] 1. Poor heat dissipation:

[0004] Heat transfer obstruction: Electrical components within the electrical compartment generate a significant amount of heat during operation. Although there is a heat dissipation chamber, the connection between the two can complicate the heat transfer path. For example, the heat generated by the electrical components may need to pass through the connection between the compartments before being transferred to the heat dissipation chamber. This process may involve thermal resistance, affecting the efficiency of heat conduction.

[0005] Disrupted airflow: Because the two compartments are connected, the originally ideal airflow pattern may be disrupted during heat dissipation. For example, the airflow generated by the cooling fan in the heat dissipation compartment may be interfered with by the electrical compartment structure, preventing the formation of a smooth airflow and thus hindering heat dissipation.

[0006] 2. Poor security:

[0007] Electrical faults pose a fire risk: Electrical components in the electrical compartment are susceptible to short circuits, overloads, and other faults. If a fault occurs and generates electrical sparks or high temperatures, these sparks or high temperatures can easily ignite flammable materials inside the heat dissipation compartment, such as plastic parts of the cooling fan or accumulated dust, due to the lack of effective isolation measures. This can lead to a fire and expand the scope of the accident.

[0008] A malfunctioning cooling system can negatively impact electrical components: If the cooling equipment in the heat dissipation chamber malfunctions, such as a fan stopping or a blockage in the cooling pipes, it will lead to poor heat dissipation, causing the temperature inside the electrical chamber to rise rapidly. High temperatures accelerate the aging of electrical components, reduce their insulation performance, increase the probability of electrical faults, creating a vicious cycle that further threatens the safe operation of the equipment.

[0009] 3. Increase the size:

[0010] Structural design limitations: In order to ensure that the electrical compartment and the heat dissipation compartment can still work normally after being connected, some transition structures, such as connection channels and sealing structures, need to be set at the connection point. These additional structures will occupy a certain amount of space, thus increasing the size of the entire device.

[0011] Increased space requirements due to cooling needs: Because heat dissipation is affected, increasing the size of the heat dissipation chamber may be necessary to improve cooling capacity in order to ensure the equipment operates normally within a certain temperature range. For example, increasing the number of cooling fans or enlarging the area of ​​the heat sink requires more space, thus increasing the overall size of the equipment.

[0012] To better address the above problems, we propose a liquid-cooled energy storage device. Utility Model Content

[0013] The purpose of this invention is to address the shortcomings of existing technologies by proposing a liquid-cooled energy storage device.

[0014] To achieve the above objectives, the present invention adopts the following technical solution:

[0015] A liquid-cooled energy storage device includes a cabinet. A first partition and a second partition are fixed inside the cabinet from top to bottom. The cabinet's interior is divided into a battery compartment, an electrical compartment, and a heat dissipation compartment by the first and second partitions. The battery compartment houses a battery pack, fire hoses, a battery compartment space composite detector, a puncture spray valve, lighting, and limit switches. The electrical compartment houses a high-voltage distribution box, an energy storage converter, an uninterruptible power supply, and a fire suppression device, all mounted on a support frame. The heat dissipation compartment houses a liquid-cooled chiller unit.

[0016] Preferably, a display screen and a dehumidifier are installed on the inside of the cabinet door of the cabinet body, and the dehumidifier is used to dehumidify the battery compartment.

[0017] Preferably, the side of the cabinet is provided with a display screen antenna through hole, and the antenna of the display screen is located inside the display screen antenna through hole.

[0018] Preferably, a buzzer, a first metal indicator light, a second metal indicator light, and an emergency stop button are installed on the outside of the cabinet door of the cabinet body.

[0019] Preferably, the uninterruptible power supply is located above the fire suppression device, the uninterruptible power supply and the fire suppression device are located on one side of the energy storage converter, and the integrated high-voltage distribution box is located above the energy storage converter and the uninterruptible power supply.

[0020] Preferably, a first electric push rod type explosion-proof valve for venting the battery compartment is installed on the inside of the cabinet door of the cabinet body, a second electric push rod type explosion-proof valve for venting the battery compartment is installed on the side of the cabinet body, and a fan for cooling the electrical compartment is installed on the side of the cabinet body.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. In this utility model, the overall design adopts a three-compartment design, which is divided into upper, middle and lower compartments. The uppermost compartment is the battery compartment, the middle compartment is the electrical compartment, and the lowermost compartment is the heat dissipation compartment. This design provides better heat dissipation, improves safety, reduces the overall size, and expands the application scenarios.

[0023] 2. In this utility model, the battery compartment space composite detector detects combustible gases, smoke, temperature, etc., within the battery compartment to achieve early fire warning. When the cabinet door is opened, a limit switch automatically turns on the lighting; when the cabinet door is closed, the limit switch automatically turns off the lighting. The lighting is used for internal illumination of the battery compartment. The extinguishing agent of the fire suppression device is delivered to the puncture spray valve through a fire hose, which can effectively extinguish fires inside the battery pack. The liquid cooling unit uses circulating coolant to remove heat generated inside the battery compartment. The dehumidifier is used to dehumidify the battery compartment. A buzzer is used to sound an alarm in case of fire. A first metal indicator light provides a high-temperature warning, a second metal indicator light provides a fire alarm, and an emergency stop button can cut off the power supply immediately to prevent the fire from spreading. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a liquid-cooled energy storage device proposed in this utility model;

[0025] Figure 2 for Figure 1 Cross-sectional view in the AA direction;

[0026] Figure 3 for Figure 1 Rear view;

[0027] Figure 4 for Figure 1 The left view;

[0028] Figure 5 for Figure 1 The right view;

[0029] Figure 6 This is an isometric view of a liquid-cooled energy storage device proposed in this utility model.

[0030] In the diagram: 1 Cabinet, 2 Liquid-cooled unit, 3 Energy storage converter, 4 High-voltage power distribution box, 5 Liquid-cooled pipes, 6 Battery pack, 7 First electric actuator explosion-proof valve, 8 Display screen, 9 Dehumidifier, 10 Uninterruptible power supply, 11 Fire suppression device, 12 Fire water pipe, 13 Battery compartment space composite detector, 14 Piercing spray valve, 15 Lighting, 16 Limit switch, 17 Display screen antenna perforation, 18 Buzzer, 19 First metal indicator light, 20 Second metal indicator light, 21 Emergency stop button, 22 Second electric actuator explosion-proof valve, 23 Fan, 24 First partition, 25 Second partition. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Reference Figure 1-6 A liquid-cooled energy storage device includes a cabinet 1. Inside the cabinet 1, a first partition 24 and a second partition 25 are fixed sequentially from top to bottom. The interior of the cabinet 1 is divided into a battery compartment, an electrical compartment, and a heat dissipation compartment by the first partition 24 and the second partition 25. The device adopts a three-compartment design, with the battery compartment at the top, the electrical compartment in the middle, and the heat dissipation compartment at the bottom. This design improves heat dissipation, enhances safety, reduces overall size, and broadens application scenarios. The battery compartment houses a battery pack 6, a fire hose 12, a battery compartment space composite detector 13, a puncture spray valve 14, a lighting lamp 15, and a limit switch 16. The battery compartment space composite detector 13 detects combustible gases, smoke, temperature, etc., within the battery compartment, enabling early fire warning. When the cabinet door of the cabinet 1 is opened, the limit switch 16 senses this and automatically turns on the lighting 15. When the cabinet door of the cabinet 1 is closed, the limit switch 16 senses this and automatically turns off the lighting 15. The lighting 15 is used for internal lighting of the battery compartment. The extinguishing agent of the fire suppression device 11 is delivered to the puncture spray valve 14 through the fire water pipe 12. The puncture spray valve 14 can effectively extinguish fires inside the battery pack in a timely manner. The electrical compartment is equipped with a high-voltage distribution box 4 and a storage unit installed inside via brackets. The battery compartment includes a power converter 3, an uninterruptible power supply 10, and a fire suppression device 11. A liquid-cooled unit 2 is installed inside the heat dissipation compartment, using circulating coolant to remove heat generated inside the battery compartment. A display screen 8 and a dehumidifier 9 are installed inside the cabinet door of the cabinet 1. The dehumidifier 9 is used to dehumidify the battery compartment. An antenna perforation 17 for the display screen 8 is located on the side of the cabinet 1. The antenna of the display screen 8 is located inside the antenna perforation 17. A buzzer 18, a first metal indicator light 19, a second metal indicator light 20, and an emergency stop button 21 are installed on the outside of the cabinet door of the cabinet 1. The buzzer 18 is used to sound an alarm in case of fire. The first metal indicator light... 19 provides a high temperature warning, 20 provides a fire alarm, 21 provides an emergency stop button to cut off the power supply and prevent the fire from spreading, 10 is located above the fire suppression device 11, and 10 and 11 are located on one side of the energy storage converter 3, 4 is located above the energy storage converter 3 and 10, 7 is installed inside the cabinet door of the cabinet body 1 for venting the battery compartment, 22 is installed on the side of the cabinet body 1 for venting the battery compartment, and 23 is installed on the side of the cabinet body 1 for cooling the electrical compartment.

[0033] Working Principle: The system employs a three-compartment design, consisting of an upper, middle, and lower compartment. The top compartment is for the battery, the middle for the electrical components, and the bottom for heat dissipation. This design improves heat dissipation, enhances safety, reduces overall size, and broadens application scenarios. The battery compartment space composite detector 13 detects combustible gases, smoke, and temperature within the battery compartment, providing early fire warning. When the cabinet door 1 is opened, the limit switch 16 automatically activates the lighting 15; conversely, when the cabinet door is closed, the limit switch 16 automatically deactivates the lighting 15. 5. Lighting 15 is used for internal lighting of the battery compartment. The extinguishing agent of the fire suppression device 11 is delivered to the puncture spray valve 14 through the fire water pipe 12. The puncture spray valve 14 can extinguish the fire inside the battery pack in a timely and effective manner. The liquid cooling unit 2 uses circulating coolant to remove the heat generated inside the battery compartment. The dehumidifier 9 is used to dehumidify the battery compartment. The buzzer 18 is used to alarm in case of fire. The first metal indicator light 19 provides a high temperature warning, the second metal indicator light 20 provides a fire alarm, and the emergency stop button 21 can cut off the power supply in an emergency to prevent the fire from spreading.

[0034] It should be noted that in this plan:

[0035] Fire suppression devices 11 typically employ a combination of technologies to achieve fire prevention and control. For example, they may use aerosol, dry powder, or gas extinguishing methods. Taking aerosol extinguishing as an example, when a fire occurs, the aerosol extinguishing agent generates a large number of tiny particles through a chemical reaction. These particles can quickly diffuse within the energy storage cabinet, interrupting the chain reaction of combustion and reducing the oxygen concentration, thereby achieving the purpose of extinguishing the fire.

[0036] The liquid cooling unit 2 removes the heat generated by the energy storage battery by circulating coolant. Its working process is generally as follows: the water pump in the liquid cooling unit pumps the coolant into the cooling pipes in the energy storage cabinet. The coolant flows in the pipes, absorbs the heat generated by the battery, and then flows back to the liquid cooling unit. In the liquid cooling unit, the coolant is cooled by the evaporator and then circulated back to the energy storage cabinet. This cycle is repeated to cool the energy storage battery.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A liquid-cooled energy storage device, comprising a cabinet (1), characterized in that, The cabinet body (1) is fixed with a first partition (24) and a second partition (25) from top to bottom inside. The cabinet body (1) is divided into a battery compartment, an electrical compartment and a heat dissipation compartment by the first partition (24) and the second partition (25). The battery compartment is equipped with a battery pack (6), a fire water pipe (12), a battery compartment space composite detector (13), a puncture spray valve (14), a lighting lamp (15) and a limit switch (16). The electrical compartment is equipped with a high-voltage distribution box (4), an energy storage converter (3), an uninterruptible power supply (10) and a fire suppression device (11) installed by a bracket. The heat dissipation compartment is equipped with a liquid cooling unit (2). The uninterruptible power supply (10) is located above the fire suppression device (11). The fire suppression device (11) is located on one side of the energy storage converter (3). The high voltage distribution box (4) is located above the energy storage converter (3) and the uninterruptible power supply (10). The cabinet door of the cabinet body (1) is equipped with a first electric push rod explosion-proof valve (7) for venting the battery compartment. The cabinet body (1) is equipped with a second electric push rod explosion-proof valve (22) for venting the battery compartment. The cabinet body (1) is equipped with a fan (23) for heat dissipation of the electrical compartment. The extinguishing agent of the fire suppression device (11) is delivered to the puncture spray valve (14) through the fire water pipe (12). The heat dissipation compartment is also equipped with a liquid cooling pipe (5). The liquid cooling unit (2) circulates the coolant through the liquid cooling pipe (5) to remove the heat generated inside the battery compartment.

2. The liquid-cooled energy storage device according to claim 1, characterized in that, The cabinet (1) is equipped with a display screen (8) and a dehumidifier (9) on the inside of the cabinet door. The dehumidifier (9) is used to dehumidify the battery compartment.

3. The liquid-cooled energy storage device according to claim 2, characterized in that, The cabinet (1) has a display screen antenna through hole (17) on its side, and the antenna of the display screen (8) is located inside the display screen antenna through hole (17).

4. The liquid-cooled energy storage device according to claim 1, characterized in that, The cabinet (1) is equipped with a buzzer (18), a first metal indicator light (19), a second metal indicator light (20), and an emergency stop button (21) on the outside of the cabinet door.

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