KR-102961667-B1 - Electric Vehicle Fire Spread Prevention System

Abstract

An electric vehicle fire spread prevention system comprises: a fire detection unit including a plurality of sensors that detect at least one of heat, smoke, and flames generated in an electric vehicle parking area; a fire spread prevention unit including a fire shutter movably installed in the electric vehicle parking area to close the electric vehicle parking area and a fire shutter driving unit that drives the fire shutter to move; and a control unit that stores a fire judgment range for each of the heat, smoke, and flames in the electric vehicle parking area that is judged to be a fire, and controls the fire shutter driving unit to close the electric vehicle parking area by the fire shutter when it is determined that at least one detection value among the heat, smoke, and flames detected by the fire detection unit is within the fire judgment range.

Inventors

• 김희원

Dates

Publication Date

20260513

Application Date

20240102

Claims (5)

1. In an electric vehicle fire spread prevention system, A fire detection unit comprising a plurality of sensors that detect at least one of heat, smoke, and flames generated in an electric vehicle parking area; A fire spread prevention unit comprising a fire shutter movably installed in the electric vehicle parking area to close the electric vehicle parking area, and a fire shutter driving unit that drives the fire shutter to move; A communication unit that communicates with an external device; A camera for photographing an electric vehicle parked in the above-mentioned electric vehicle parking area; and It includes a control unit that stores a fire judgment range for each of the heat, smoke, and flames of the electric vehicle parking area, and controls the fire shutter driving unit to close the electric vehicle parking area if at least one detection value among the heat, smoke, and flames detected by the fire detection unit is determined to be within the fire judgment range. The above control unit is, It stores user terminal information corresponding to a registered electric vehicle, and transmits at least one detection value among heat, smoke, and flame of the electric vehicle parking area in real time to the user terminal of the electric vehicle parked in the electric vehicle parking area, and controls the transmission of a notification to the corresponding user terminal when at least one detection value among heat, smoke, and flame detected by the fire detection unit approaches the fire judgment range, and determines the degree of fire based on the rate of change of a fire detection signal including the rate of increase in the amount of smoke generated in the electric vehicle parking area detected by the plurality of sensors, the rate of increase in the temperature of the electric vehicle parking area, the rate of change in the frequency of flame generation or the size of the flame of the electric vehicle parking area, and the rate of change in the size of the fire captured by the camera, and stores the degree of fire classified into first, second, and third stages for determining the degree of fire for each of the plurality of sensors, and analyzes the detection signals and images detected and captured by the plurality of sensors and the camera to determine the current degree of fire progression. The above fire shutter consists of four parts to close off the electric vehicle parking area, and The above fire spread prevention unit is, A suffocation extinguishing unit comprising a fluid receiving unit that is positioned and supported along the perimeter of the fire shutter and has an internal space formed to accommodate fluid, and a fluid supply unit that supplies fluid to the fluid receiving unit to prevent air inflow into the electric vehicle parking area while the fire shutter is in a position to shield the electric vehicle parking area; A suffocating flame retardant that is positioned by being engaged with the ceiling area of the electric vehicle parking area, and which unfolds upon release to fall in the form of a parachute to cover the electric vehicle and extinguish it by suffocation; and The device further comprises a locking unit including a locking hook portion formed to be releaseable and supported on the ceiling area of the electric vehicle parking area, a locking portion fixedly supported on the suffocation extinguishing portion and engaging with the locking hook portion, and a locking release driving portion that drives the locking hook portion to be released. The above fluid supply unit supplies at least one fluid, either air or water, to the fluid receiving unit disposed along the edge of the fire shutter, and The above fluid supply unit includes an air supply unit, an air valve, a water supply unit, and a water valve. The air supply unit is an air pipe connected to an external compressor and controls the compressed air by means of an air valve. The air supply unit is composed of an expandable air pipe so that compressed air is supplied to the fluid receiving unit when the locking ring is moved. The water supply unit is a water pipe connected to an external water supply or fire hydrant and controls the flow of water by means of a water valve. The water supply unit is composed of an expandable water pipe so that water is supplied to the fluid receiving unit when the locking ring is moved. It further includes a fire suppression unit for suppressing a fire in the electric vehicle parking area and a vacuum forming unit for moving air from the electric vehicle parking area to the outside to make the electric vehicle parking area a vacuum. The above control unit is, An electric vehicle fire spread prevention system characterized by controlling the above-mentioned fire shutter to completely lower, the above-mentioned fluid supply unit to supply fluid to the above-mentioned fluid receiving unit to seal the electric vehicle parking area, and subsequently, the above-mentioned vacuum forming unit to discharge air from the electric vehicle parking area to the outside to extinguish the fire by suffocation, and the above-mentioned fire suppression unit to suppress the fire simultaneously and in stages.
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Description

Electric Vehicle Fire Spread Prevention System The present invention relates to an electric vehicle fire spread prevention system, and more specifically, to an electric vehicle fire spread prevention system for the rapid suppression of a fire that occurs in an electric vehicle parking area. Interest and demand for electric vehicles (EVs) are rising due to environmental and energy conservation concerns, as well as technological advancements. However, there is still a tendency to avoid EVs due to various issues. These reasons include the lack of sufficient charging infrastructure, the financial burden of purchasing due to the prevalence of imported or high-priced models, battery lifespan, and finally, safety concerns regarding charging and battery management systems. Among these, the charging system and battery management system have the potential to lead to fires in electric vehicles. Since electric vehicles are equipped with large-capacity batteries and their charging systems are highly complex and use high voltage, there is a possibility of fire. Although there are various causes of electric vehicle fires, most of them are battery problems, and fires frequently occur when the battery is overcharged due to errors in the charger or charging facilities. To prevent electric vehicle fires, design and development that consider safety from the initial design stage are necessary, but safety must also be the top priority for batteries and charging systems. In particular, given the circumstances in Korea, most apartment complexes have charging facilities located in their underground parking lots. However, electric vehicle charging systems must be equipped with various safety devices, and personnel, equipment, and response systems capable of responding quickly in the event of a fire must be established; currently, a system is required to rapidly extinguish fires and prevent their spread in the event of a fire in an electric vehicle. FIG. 1 is an example diagram of the operation of an electric vehicle fire spread prevention system according to the present invention. Figure 2 is an example diagram of the operation of the suffocation extinguishing unit. Figure 3 is a diagram of a suffocation extinguishing operation using a suffocation flame retardant. Figure 4 is a diagram of the fire spread prevention and suppression operation of an electric vehicle fire spread prevention system. Figure 5 is an operation diagram of a fire spread prevention system for electric vehicles that is manually operated to prevent and suppress the spread of fire. Figure 6 is an operation diagram that enables monitoring of an electric vehicle. Figure 7 is a control block diagram of an electric vehicle fire spread prevention system. Hereinafter, an electric vehicle fire spread prevention system (1) according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is an example of operation of an electric vehicle fire spread prevention system (1) according to the present invention, FIG. 2 is an example of operation of a suffocation extinguishing unit (23), FIG. 3 is a suffocation extinguishing operation using a suffocation flame retardant unit (24), FIG. 4 is a fire spread prevention and suppression operation of the electric vehicle fire spread prevention system (1), FIG. 5 is a fire spread prevention and suppression operation by manually operating the electric vehicle fire spread prevention system (1), FIG. 6 is an operation that enables monitoring of the electric vehicle (2), and FIG. 7 is a control block diagram of the electric vehicle fire spread prevention system (1). An electric vehicle fire spread prevention system (1) is described with reference to FIGS. 1 to 7. The electric vehicle fire spread prevention system (1) includes a fire detection unit (10), a fire spread prevention unit (20), a fire suppression unit (30), a communication unit (40), and a control unit (50). The fire detection unit (10) includes a plurality of sensors that detect at least one of heat, smoke, and flames generated in the electric vehicle (2) parking area. The fire detection unit (10) includes a heat detection sensor (11), a smoke detection sensor (12), a flame detection sensor (13), a vibration detection sensor (14), and a humidity detection sensor (15). A heat sensor (11) is placed in the electric vehicle parking area and can detect heat inside. The smoke detection sensor (12) is placed in the electric vehicle parking area and can detect smoke inside. The flame detection sensor (13) can be an ultraviolet type, an infrared type, or an ultraviolet and infrared combined type, and can detect flames including those caused by discharge. A vibration detection sensor (14) can be placed in an electric vehicle parking area to detect vibrations. A humidity sensor (15) is placed in the electric vehicle parking area and can detect humidity inside. The fire spread prevention unit (20) includes a fire shutter