Battery charging and battery replacing cabinet fire extinguishing system

Abstract

The utility model discloses a battery charging and battery replacing cabinet fire extinguishing system, which comprises a cabinet body, a water tank, a water pump, a control module and a power supply module, a plurality of battery cabins are arranged in the cabinet body, each battery cabin comprises a sealing cabin door, and the battery cabins are used for accommodating batteries; the water tank is communicated with a water inlet of the water pump; a water outlet of the water pump is communicated with the battery compartments; the control module is electrically connected with the water pump and the power module, and the power module supplies power to the control module and the water pump in a controlled mode. Independent fire fighting of each battery compartment is achieved in a compartment control mode, and single-compartment fire fighting is achieved without interfering with other units by means of independent electromagnetic valves and sensor networks; meanwhile, the water-saving efficiency is improved by utilizing a water circulation design and combining a water return port and a closed-loop pipeline of the water tank; in addition, multi-stage fault early warning is further configured, water flow, liquid level and temperature triple detection is integrated, and the reliability of the whole fire fighting system is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery charging and swapping cabinet technology, specifically a fire protection system for battery charging and swapping cabinets based on water circulation cooling, which is suitable for fire prevention and control in centralized charging and swapping scenarios of lithium batteries such as electric bicycles and energy storage equipment. Background Technology

[0002] With the widespread use of battery swapping cabinets, the risk of fires caused by thermal runaway during lithium battery charging has increased significantly. Traditional fire suppression systems (such as dry powder extinguishing) pose a risk of reignition and cannot accurately locate the fire source, while existing water-based fire suppression systems mostly use a unified sprinkler system, which suffers from problems such as high water consumption, high risk of electrical short circuits, and inability to recycle water resources. To address these issues, this invention proposes a compartmentalized water-circulating fire suppression system that achieves precise fire suppression through independent control and multi-level detection. Utility Model Content

[0003] To address this problem, this utility model proposes a battery charging and swapping cabinet fire protection system, comprising a cabinet, a water tank, a water pump, a control module, and a power module. The cabinet contains multiple battery compartments, each with a sealed door, and the battery compartments are used to house batteries. The water tank is connected to the inlet of the water pump, and the outlet of the water pump is connected to each of the multiple battery compartments. The control module is electrically connected to the water pump and the power module, and the power module controls the supply of power to both the control module and the water pump.

[0004] Preferably, a solenoid valve is further provided between the water pump outlet and the multiple battery compartments, and the solenoid valve is electrically connected to the control module to control the connection or disconnection between the water pump and the multiple battery compartments.

[0005] Preferably, a water flow sensor is further provided between the solenoid valve and the water pump, and the water flow sensor is electrically connected to the control module.

[0006] Preferably, temperature sensors are installed in the battery compartment, and the temperature sensors are electrically connected to the control module.

[0007] Preferably, the battery compartment is further provided with a water return port, which is connected to the water tank.

[0008] Preferably, a liquid level sensor is further provided in the water tank, and the liquid level sensor is electrically connected to the control module.

[0009] Preferably, the battery compartment includes a water injection nozzle, which is connected to the water outlet of the solenoid valve.

[0010] Preferably, the control module is further connected to an external power source.

[0011] Preferably, a heat dissipation module is further provided between the return water outlet and the water tank.

[0012] Preferably, a filter module is further provided between the return water outlet and the heat dissipation module.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This invention achieves independent fire protection for each battery compartment through compartmentalized control. By utilizing independent solenoid valves and sensor networks, fire suppression in a single compartment can be achieved without interfering with other units. At the same time, the water circulation design, combined with the return water inlet and the closed-loop pipeline of the water tank, improves water-saving efficiency. In addition, it is equipped with multi-level fault early warning and integrates triple detection of water flow, liquid level and temperature to improve the reliability of the overall fire protection system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front structure of the battery charging and swapping cabinet in this utility model.

[0016] Figure 2 This is a schematic diagram of the back structure of the battery charging and swapping cabinet in this utility model.

[0017] Figure 3 This is a schematic diagram of the system architecture of this utility model.

[0018] Figure Labels

[0019] 1 Battery compartment

[0020] 2 water tanks

[0021] 3 Water pumps

[0022] 4. Control Module

[0023] 5 Power Module

[0024] 6 water pipes

[0025] 7 Return water outlet

[0026] 8 Filtering Modules

[0027] 9. Heat dissipation module

[0028] 10. Solenoid valve

[0029] 11. Water Flow Sensor

[0030] 12 Temperature Sensors

[0031] 13 Liquid level sensor

[0032] 100 cabinet Detailed Implementation

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Please refer to Figures 1-3 For ease of understanding, Figure 3 The solid line indicates that the connection is via water pipe 6, and the dashed line indicates the electrical connection. This utility model discloses a battery charging and swapping cabinet fire protection system, which includes a cabinet 100, a water tank 2, a water pump 3, a control module 4, and a power module 5. The cabinet 100 includes multiple battery compartments 1, each with a sealed door, and the battery compartments 1 can be used to house batteries.

[0037] The inlet of water tank 2 and water pump 3 are connected via water pipe 6, allowing water pump 3 to draw water from water tank 2. The outlet of water pump 3 is connected to multiple battery compartments 1. More specifically, water injection nozzles are installed in battery compartments 1, and the outlet of water pump 3 is connected to the water injection nozzles via water pipe 6, allowing water to be injected into battery compartments 1. In addition, a return water inlet 7 is installed in battery compartment 1, which is connected to water tank 2 via water pipe 6. When the water level in battery compartment 1 reaches the return water inlet 7, water can flow back from the return water inlet 7 to water tank 2, preventing battery compartment 1 from becoming full and unable to continue water injection for cooling, while also saving water. Furthermore, a filter module 8 and a heat dissipation module 9 are further provided between the return water inlet 7 and the water tank 2. If a fire occurs in the battery compartment 1, the water flowing back through the return water inlet 7 may contain impurities from the combustion. The filter module 8 can filter out the impurities in the return water, and the heat dissipation module 9 can cool down the high-temperature return water for subsequent recycling.

[0038] Furthermore, a solenoid valve 10 is installed between the outlet of the water pump 3 and each battery compartment 1. The solenoid valve 10 is electrically connected to the control module 4. The solenoid valve 10 controls the connection or closure between the water pump 3 and the multiple battery compartments 1. A water flow sensor 11 is also installed between the solenoid valve 10 and the water pump 3. The water flow sensor 11 is electrically connected to the control module 4. The water flow sensor 11 can detect whether there is a leak in the water pipe 6, and can also detect whether the water pump 3 is operating normally in case of an emergency.

[0039] Temperature sensors 12 are installed in the battery compartment 1. The temperature sensors 12 are electrically connected to the control module 4. The control module 4 is electrically connected to the water pump 3 and the power module 5. When the temperature sensor 12 in the battery compartment 1 detects that the temperature is too high, the control module 4 can control the water pump 3 to start and open the solenoid valve 10 to fill the battery compartment 1 with water to cool it down or extinguish the fire. In addition, the control module 4 can be connected to an external power source (such as mains power). In case of an emergency, the control module 4 can cut off the external power supply and switch to the power module 5 for power supply. Therefore, the power module 5 can controllably supply power to the control module 4 and the water pump 3 respectively.

[0040] To prevent insufficient water storage in water tank 2, a liquid level sensor 13 is further installed in water tank 2. The liquid level sensor 13 is electrically connected to the control module 4. When the water level in water tank 2 is insufficient, the control module 4 can notify the water tank 2 to be replenished.

[0041] The specific working principle of this utility model is as follows:

[0042] Fire Detection: When the temperature sensor 12 of a battery compartment 1 detects a temperature ≥80℃, the control system activates the water pump 3 and the corresponding solenoid valve 10. At this time, the control module 4 cuts off the mains power and switches to power supply from the power module 5. The power module 5 can use a 12V battery to avoid the risk of electrical short circuits. After the water pump 3 starts, water flows through the solenoid valve 10 and the water nozzle into the target battery compartment 1. The water pump 3 is designed for high flow, with a drainage capacity of 10-12 L / min and a pressure of 0.8 MPa, and can fill the solenoid compartment within 1 minute. Once full, the water is returned to the water tank 2 through the return port 7, forming a closed loop and reducing water consumption.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A battery charging and swapping cabinet fire protection system, comprising a cabinet, a water tank, a water pump, a control module, and a power supply module, characterized in that: The cabinet includes multiple battery compartments, each battery compartment having a sealed door, and the battery compartment is used to house batteries. The water tank is connected to the inlet of the water pump, and the outlet of the water pump is connected to the plurality of battery compartments respectively. The control module is electrically connected to the water pump and the power module, and the power module controls the supply of power to the control module and the water pump respectively.

2. The battery swap charging cabinet fire extinguishing system according to claim 1, characterized in that: Solenoid valves are further provided between the outlet of the water pump and each of the battery compartments. The solenoid valves are electrically connected to the control module to control the connection or disconnection between the water pump and the battery compartments.

3. The battery swap charging cabinet fire extinguishing system according to claim 2, characterized in that: A water flow sensor is further provided between the solenoid valve and the water pump, and the water flow sensor is electrically connected to the control module.

4. The battery swap charging cabinet fire extinguishing system according to claim 1, wherein: Temperature sensors are installed in the battery compartment and are electrically connected to the control module.

5. The battery swap charging cabinet fire extinguishing system according to claim 1, wherein: The battery compartment is further provided with a water return port, which is connected to the water tank.

6. The battery swap charging cabinet fire extinguishing system according to claim 1, wherein: A liquid level sensor is further installed in the water tank, and the liquid level sensor is electrically connected to the control module.

7. A battery charging and swapping cabinet fire protection system according to claim 2, characterized in that: The battery compartment includes a water injection nozzle, which is connected to the outlet of the solenoid valve. 8.The battery swap charging cabinet fire extinguishing system according to claim 1, characterized in that: The control module is further connected to an external power source. 9.The battery swap charging cabinet fire extinguishing system according to claim 5, characterized in that: A heat dissipation module is further provided between the return water inlet and the water tank.

10. The battery swap charging cabinet fire extinguishing system according to claim 9, characterized in that: A filter module is further provided between the return water inlet and the heat dissipation module.

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