Fire extinguishing equipment for extinguishing fires in electric vehicles

Abstract

It is installed in an indoor parking lot equipped with an electric vehicle charging system and comprises: a water supply unit having a structure that can be deployed by external force and simultaneously spraying fire extinguishing liquid onto the bottom and sides of the electric vehicle; a fire extinguishing equipment unit for storing and supplying the fire extinguishing liquid supplied to the water supply unit; a valve unit for controlling the movement of the fire extinguishing liquid supplied from the fire extinguishing equipment unit to the water supply unit; a fire detection unit installed on the ceiling of the indoor parking lot to detect a fire; and a control unit connected to the fire detection unit to control the operation of the fire extinguishing equipment unit and the valve unit, wherein, in the event of a fire in the electric vehicle, the fire extinguishing liquid is supplied to the water supply unit manually or automatically, and the fire is suppressed by deploying the water supply unit by the pressure of the supplied fire extinguishing liquid.

Description

Technology Field

[0001] The present invention relates to a fire extinguishing system for suppressing electric vehicle fires to prevent the spread of damage when an electric vehicle fire occurs in an indoor parking lot. Background Technology

[0003] Generally, electric vehicles are vehicles that generate driving force by supplying electrical energy from a high-voltage battery to an electric motor; as they do not use fossil fuels, they are eco-friendly cars with virtually no exhaust emissions or noise. As the number of such electric vehicles gradually increases, the number of electric vehicle chargers installed in indoor parking lots of apartment complexes or large shopping malls is also on the rise.

[0004] However, secondary batteries, which are primarily used in electric vehicles, pose a risk of fire during the charging process due to overheating, overcharging, internal short circuits, and poor contact. Furthermore, since secondary battery fires are difficult to extinguish, there is a high possibility of damage to surrounding vehicles, and in severe cases, the fire can spread to the entire parking lot, resulting in significant damage per incident. As such cases of electric vehicle fires continue to be reported, concerns about fire-related damage are increasing, and resistance to installing electric vehicle charging stations in indoor parking lots is also growing.

[0005] Accordingly, there is an urgent need to devise measures to prevent fires and the spread of damage in electric vehicles, and various solutions are being developed. Regarding prior art related to this, Korean registered patent publication No. 10-2491008 (Electric vehicle fire suppression device, Jan. 27, 2023) discloses a technology that suppresses a fire by cutting off oxygen using a fire extinguishing blanket covering the electric vehicle in the event of a fire in the electric vehicle.

[0006] However, conventional fire suppression devices for electric vehicles have problems such as requiring high installation costs and a large space, making it difficult to rapidly suppress the fire in its initial stages, and also making it difficult to prevent the fire from spreading to the surrounding area. Prior art literature

[0008] Korean Registered Patent Publication No. 10-2491008 (Electric Vehicle Fire Suppression Device) (Published January 27, 2023) The problem to be solved

[0009] The present invention aims to provide a fire suppression system for electric vehicles that, when a fire occurs in an electric vehicle parked in a parking lot, can not only rapidly suppress the fire within the electric vehicle itself by concentrating water extinguishing on the underside of the vehicle automatically or manually through a lower water supply system, but also prevent the spread of fire to the surroundings of the vehicle through a side water supply system.

[0010] In addition, the present invention aims to provide a fire extinguishing system for electric vehicles that can significantly reduce installation costs and time by being formed with a telescopic structure so that the fire extinguishing device can be simply installed even in existing narrow parking areas without expanding the space.

[0011] In addition, the present invention aims to provide a fire suppression system for electric vehicles that can prevent accidents caused by electric shock from trace amounts of voltage remaining in the battery module of an electric vehicle by extinguishing a vehicle on fire using a bottom water supply system and a side water supply system, and can also prevent exposure to explosions, radiant heat, and toxic gases caused by the fire. means of solving the problem

[0013] A fire extinguishing system for suppressing an electric vehicle fire according to an embodiment of the present invention is installed in an indoor parking lot where an electric vehicle charging system is installed, and comprises: a water supply unit having a structure that can be deployed by external force and simultaneously spraying a fire extinguishing liquid onto the bottom and side of the electric vehicle; a fire extinguishing system unit for storing and supplying the fire extinguishing liquid supplied to the water supply unit; a valve unit for controlling the movement of the fire extinguishing liquid supplied from the fire extinguishing system unit to the water supply unit; a fire detection unit installed on the ceiling of the indoor parking lot to detect a fire; and a control unit connected to the fire detection unit to control the operation of the fire extinguishing system unit and the valve unit, so that when a fire occurs in the electric vehicle, the fire extinguishing liquid is supplied to the water supply unit manually or automatically, and the fire can be suppressed by deploying the water supply unit by the pressure of the supplied fire extinguishing liquid.

[0014] Additionally, the above-mentioned water supply unit may include a lower water supply unit for supplying fire extinguishing liquid to the lower part of the electric vehicle; a side water supply unit for forming a water film on the side of the electric vehicle; a water supply pipe connecting the valve unit and the lower water supply unit and the side water supply unit; and a sprinkler unit connected to the valve unit for supplying fire extinguishing liquid to the upper part of the electric vehicle.

[0015] Additionally, the lower water supply unit comprises: a first lower water supply facility including a hollow first main pipe having a certain length and connected to the water supply pipe, a first extension pipe extending in both directions from the tip of the first main pipe, and a first lower discharge port each at both ends of the first extension pipe for discharging fire extinguishing liquid upward; and a second lower water supply facility including a hollow second main pipe having a certain length and inserted into the interior of the first main pipe, a second extension pipe extending in both directions from the tip of the second main pipe, and a second lower discharge port each at both ends of the second extension pipe for discharging fire extinguishing liquid upward. It may include a third lower water supply facility comprising a third main pipe having a certain length and inserted into the interior of the second main pipe, a third extension pipe extending in both directions from the tip of the third main pipe, and a third lower discharge port that discharges fire extinguishing liquid upwardly from each end of the third extension pipe, and when a fire occurs in an electric vehicle, the first, second, and third main pipes may be deployed in a telescopic manner by the pressure of the supplied fire extinguishing liquid to supply fire extinguishing liquid to the lower part of the electric vehicle.

[0016] Additionally, the side water supply unit may include a first side water supply facility comprising a hollow first side pipe having a certain length connected to the water supply pipe and a first side discharge port that discharges fire extinguishing liquid upwardly at one end of the first side pipe; and a second side water supply facility comprising a second side pipe having a certain length inserted into the interior of the first side pipe and a second side discharge port that discharges fire extinguishing liquid upwardly at one end of the second side pipe, and when a fire occurs in an electric vehicle, the first and second side pipes may be deployed in a telescopic manner by the pressure of the supplied fire extinguishing liquid to form a water film on the side of the electric vehicle.

[0017] Additionally, the fire extinguishing equipment may include: a fire extinguishing liquid tank in which the fire extinguishing liquid is stored; a fire extinguishing liquid supply pipe through which the fire extinguishing liquid stored in the fire extinguishing liquid tank moves; a dedicated pump that pressurizes and moves the fire extinguishing liquid within the fire extinguishing liquid supply pipe; and an indoor fire hydrant connected to the fire extinguishing liquid supply pipe and the water supply unit to supply the fire extinguishing liquid to the water supply unit.

[0018] Additionally, the valve section may include a pre-action valve section that controls the movement of the extinguishing liquid of the fire extinguishing equipment section to the water supply section using a pre-action valve; and an indoor fire hydrant valve that controls the movement of the extinguishing liquid of the indoor fire hydrant to the water supply section, and the pre-action valve section may include a primary valve that controls the movement of the extinguishing liquid to the water supply section at the lower end of the pre-action valve; and a secondary valve that controls the movement of the extinguishing liquid to the water supply section and the sprinkler at the upper end of the pre-action valve.

[0019] In addition, the indoor fire hydrant valve and the primary valve are manually operated shut-off valves, and the secondary valve may be an automatically operated check valve.

[0020] Additionally, the fire detection unit may include a flame detector that detects the occurrence of a fire by detecting flames during a fire; and an IP camera that detects the fire via wired or wireless means. Effects of the invention

[0022] The present invention allows for the concentrated application of fire extinguishing liquid to the underside of a vehicle, either automatically or manually, through a lower water supply unit when an electric vehicle fire occurs, thereby enabling rapid suppression of the fire.

[0023] In addition, the side water supply can prevent the fire from spreading to the surroundings of the vehicle where the fire occurred.

[0024] In addition, the fire extinguishing system of the present invention can be simply installed in existing narrow parking areas without expanding the space, which can significantly reduce installation costs and time.

[0025] In addition, since the lower water supply unit and the side water supply unit of the present invention are deployed in a telescopic manner by the pressure of the supplied fire extinguishing liquid, fire extinguishing can be initiated simply by opening the valve without the need for a separate equipment installation process in the event of a fire.

[0026] In addition, the fire extinguishing system of the present invention can supply fire extinguishing liquid from the primary side, secondary side of the pre-action valve and the indoor fire hydrant, enabling a quick response in the event of a fire.

[0027] In addition, it should be noted that, in addition to the effects specifically stated above, unique effects that can be easily derived and expected from the characteristic configuration of the present invention may also be included in the effects of the present invention. Brief explanation of the drawing

[0029] FIG. 1 is a drawing showing the overall configuration of a fire extinguishing system for suppressing electric vehicle fires according to the present invention. FIG. 2 is an exemplary diagram showing the operation of the lower water supply unit and the side water supply unit of the present invention. Figure 3 is an example of the operation of a fire extinguishing system for suppressing electric vehicle fires according to the present invention. Figure 4 is a block diagram showing the operation of the control unit. Specific details for implementing the invention

[0030] Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited by the embodiments described below. These embodiments are provided to more fully explain the present invention to those with average knowledge in the art. Accordingly, the shapes of components in the drawings are exaggerated to emphasize clearer explanations.

[0031] In the following description, terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention.

[0032] The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0033] FIG. 1 is a drawing showing the overall configuration of a fire extinguishing system for suppressing fire in an electric vehicle according to the present invention, FIG. 2 is an example diagram showing the operation of the lower water supply unit and the side water supply unit of the present invention, FIG. 3 is an example diagram of the operation of a fire extinguishing system for suppressing fire in an electric vehicle according to the present invention, and FIG. 4 is a block diagram showing the operation of the control unit.

[0034] Referring to FIGS. 1 to 4, the fire extinguishing equipment for suppressing an electric vehicle fire according to the present invention is installed in an indoor parking lot where an electric vehicle charging system is installed, and when an electric vehicle fire occurs, it supplies a fire extinguishing liquid to a water supply unit (100) manually or automatically, and suppresses the fire by deploying the water supply unit (100) by the pressure of the supplied fire extinguishing liquid, and may include a water supply unit (100), a fire extinguishing equipment unit (200), a valve unit (300), a fire detection sensor (400), and a control unit (500).

[0035] The water supply unit (100) has a structure that can be deployed by external force and simultaneously supplies fire extinguishing liquid to the lower and side of the electric vehicle. It can be formed along the rear of the parking space and may include a lower water supply unit (1000), a side water supply unit (2000), a water supply pipe (3000), and a sprinkler unit (4000).

[0036] The lower water supply unit (1000) is formed at the rear of the parking space and supplies fire extinguishing liquid to the lower part of the electric vehicle, and may include a first lower water supply facility (1100), a second lower water supply facility (1200), and a third lower water supply facility (1300).

[0037] The first lower water supply facility (1100) may include a hollow first main pipe (1110) having a certain length and connected to a water supply pipe (3000), a first extension pipe (1120) extending in both directions from the tip of the first main pipe (1110), and a first lower discharge port (1130) that discharges fire extinguishing liquid upward at each end of the first extension pipe (1120).

[0038] The second lower water supply facility (1200) may include a hollow second main pipe (1210) having a certain length and inserted into the interior of the first main pipe (1110), a second extension pipe (1220) extending in both directions from the tip of the second main pipe (1210), and a second lower discharge port (1230) that discharges fire extinguishing liquid upward at each end of the second extension pipe (1220).

[0039] The third lower water supply facility (1300) may include a third main pipe (1310) having a certain length and inserted into the interior of the second main pipe (1210), a third extension pipe (1320) extending in both directions from the tip of the third main pipe (1320), and a third lower discharge port (1330) that discharges fire extinguishing liquid upward at each end of the third extension pipe (1320).

[0040] Accordingly, when a fire occurs in the electric vehicle, high-pressure extinguishing liquid is supplied to the first, second, and third lower water supply facilities, causing the first, second, and third main pipes to be deployed in a telescopic manner and positioned at the bottom of the electric vehicle, and the extinguishing liquid can be directly supplied to the vicinity of the battery at the bottom of the electric vehicle through the first lower discharge port (1130), the second lower discharge port (1230), and the third lower discharge port (1330) formed upwardly in the first, second, and third extension pipes.

[0041] At this time, the shape of the lower water supply unit (1000) is not limited, but it is preferable to use a shape in which the first, second, and third main pipes and the first, second, and third extension pipes are each formed vertically as shown in the drawing, and the first, second, and third lower discharge ports are each provided at both ends of the first, second, and third extension pipes so that the fire extinguishing liquid can be sprayed more effectively into the lower part of the electric vehicle.

[0042] The side water supply unit (2000) is installed on both sides of the parking space to form a water film on the side of the electric vehicle, and may include a first side water supply facility (2100) and a second side water supply facility (2200).

[0043] The first side water supply facility (2100) is connected to the water supply pipe (3000) and may include a hollow first side pipe (2110) having a certain length and a first side discharge port (2120) that discharges fire extinguishing liquid upward at one end of the first side pipe (2110).

[0044] The second side water supply facility (2200) may include a second side pipe (2210) that has a certain length and is inserted into the interior of the first side pipe (2110), and a second side discharge port (2220) that discharges fire extinguishing liquid upward at one end of the second side pipe (2210).

[0045] Accordingly, when a fire occurs in an electric vehicle, high-pressure extinguishing liquid is supplied to the first and second side water supply facilities, causing the first and second side pipes to be deployed in a telescopic manner and positioned on both sides of the electric vehicle, and by discharging the extinguishing liquid through the first side discharge port (2120) and the second side discharge port (2220) formed at one end of the first and second side pipes, a water film is formed on both sides of the electric vehicle to prevent the spread of fire.

[0046] In this case, the extinguishing agent is not limited to any type used for firefighting, such as water, carbon dioxide, or powder extinguishing agents; however, it is preferable to use water so that it can be used in conjunction with the building's fire extinguishing system.

[0047] Additionally, the lower water supply unit (1000) is described as having a three-stage form of the first, second, and third lower water supply facilities, and the side water supply unit (2000) is described as having a two-stage form of the first and second side water supply facilities, but the number of lower water supply facilities and side water supply facilities is not limited.

[0048] In addition, as shown in the drawing, it is desirable to reduce interference between adjacent lower discharge ports by making the distances between the multiple first, second, and third lower discharge ports different, but the distances between the first, second, and third lower discharge ports may be the same.

[0049] Additionally, the lower water supply unit (1000) and the side water supply unit (2000) may further include wheels at the bottom. When the lower water supply unit (1000) and the side water supply unit (2000) are instantaneously deployed by high pressure, the wheels located at the bottom of the first, second, and third extension pipes mediate support and movement, thereby reducing the impact applied to the lower water supply unit (1000) and the side water supply unit (2000).

[0050] Additionally, assuming the side length of the parking space is a standard length of 500 cm, the first lower water supply facility (1100), the second lower water supply facility (1200), and the third lower water supply facility (1300) are each formed with a length of 100 cm, and the first side water supply facility (2100) and the second side water supply facility (2200) are each formed with a length of 150 cm, so that fire extinguishing liquid can be supplied to the entire lower part of the electric vehicle and a water film can be easily formed on the side, but the lengths are not limited.

[0051] In addition, the discharge rate of the extinguishing liquid discharged through the first, second, and third lower discharge ports and the first and second side discharge ports may be 80 L / min. If the discharge rate of the extinguishing liquid exceeds 80 L / min, the extinguishing liquid may be rapidly depleted, and there is a risk that firefighting will be stopped before the fire truck arrives. If it is less than 80 L / min, the pressure of the extinguishing liquid is weak, making it difficult to deploy the telescopic type of the first, second, and third lower water supply facilities and the first and second side water supply facilities, and fire suppression may be difficult due to insufficient extinguishing liquid.

[0052] In addition, a protrusion may be provided at one end so that the first, second, and third main pipes and the first and second side pipes do not separate from each other when unfolded by the pressure as described above.

[0053] For example, a protrusion protruding outwardly is provided at the end of the second main pipe (1210) on the side inserted into the first main pipe (1110), and a protrusion protruding inwardly is provided at the end of the first main pipe (1110) on the side into which the second main pipe (1210) is inserted, so that they can be joined. When joined as described above, when the second main pipe (1210) is extended forward, the protrusion of the second main pipe (1210) catches on the protrusion of the first main pipe (1110) and cannot be separated, so that the length of the lower water supply section (1000) can be maintained in an extended state.

[0054] The water supply pipe (3000) connects the valve section (300), the lower water supply section (1000), and the side water supply section (2000) along the parking lot wall, and the fire extinguishing liquid supplied when the valve section (300) is opened and closed can be supplied to the lower water supply section (1000) and the side water supply section (2000) through the water supply pipe (3000).

[0055] The sprinkler unit (4000) is connected to the valve unit (300) to supply fire extinguishing liquid to the upper part of the electric vehicle and is provided on the ceiling of the indoor parking lot. It may include a sprinkler pipe (4100) connected to the valve unit (300) to supply fire extinguishing liquid, and a sprinkler discharge port (4200) that discharges fire extinguishing liquid downward to extinguish the fire in the electric vehicle.

[0056] The fire extinguishing equipment unit (200) stores and supplies fire extinguishing liquid to the water supply unit (100), and may be a fire extinguishing equipment facility including a fire extinguishing liquid tank (210), fire extinguishing liquid supply pipe (201), a dedicated pump (220), and an indoor fire hydrant (230).

[0057] The fire extinguishing liquid tank (210) may be a space where fire extinguishing liquid is stored, the fire extinguishing liquid supply pipe (201) may be a pipe through which the fire extinguishing liquid stored in the fire extinguishing liquid tank (210) moves, and the dedicated pump (220) may pressurize and move the fire extinguishing liquid within the fire extinguishing liquid supply pipe (201).

[0058] That is, the fire extinguishing liquid contained in the fire extinguishing liquid tank (210) can be pressurized by a dedicated pump (220) and moved along the fire extinguishing liquid supply pipe (201). The fire extinguishing liquid supply pipe (201) can be connected to an indoor fire hydrant (230) or valve unit (300) provided on each floor so that the fire extinguishing liquid is supplied to the location where the fire occurred.

[0059] The indoor fire hydrant (230) is installed inside a building to enable immediate response in the event of a fire. Normally, it is filled with pressurized fire extinguishing liquid, and a person in charge can use it by manually opening the valve. Further detailed explanation regarding this is omitted as it is a known technology.

[0060] The valve section (300) controls the movement of fire extinguishing liquid supplied from the fire extinguishing equipment section (200) to the water supply section (100) and may include a pre-action valve section (310) and an indoor fire hydrant valve section (320).

[0061] The pre-action valve section (310) may control the movement of the fire extinguishing liquid from the fire extinguishing equipment section (200) to the water supply section (100) using a pre-action valve.

[0062] Here, the pre-action valve is a firefighting device useful for minimizing water consumption and preventing malfunctions in sensitive environments; it may be a device that opens the valve to supply firefighting water when a fire detection signal is detected and a sprinkler head opens. A further detailed explanation regarding this is omitted as it is known technology.

[0063] The pre-action valve section (310) may include a primary valve (311) that controls the movement of fire extinguishing liquid from the primary pipe (313), which is the lower part of the pre-action valve, to the water supply section (100), and a secondary valve (312) that controls the movement of fire extinguishing liquid from the secondary pipe (314), which is the upper part of the pre-action valve, to the water supply section (100) and the sprinkler (4000).

[0064] The primary pipe (313) may be connected to the fire extinguishing liquid supply pipe (201) and normally filled with pressurized fire extinguishing liquid, and the secondary pipe (314) may normally be in an atmospheric pressure state, that is, the pipe may be empty.

[0065] Additionally, the primary valve (311) may be a shut-off valve that is manually opened and closed by a person in charge, and the secondary valve (312) may be a check valve that is automatically opened and closed when a fire detection signal is transmitted and the sprinkler head is confirmed to be open.

[0066] The indoor fire hydrant valve (320) is provided in the indoor fire hydrant pipe (321) connecting the indoor fire hydrant (230) and the water supply pipe (3000) to control the movement of fire extinguishing liquid to the water supply unit (100), and can be provided as an opening / closing valve that is manually opened and closed by a person in charge.

[0067] The fire detection unit (400) is installed on the ceiling of an indoor parking lot to detect fire and may include a flame detector (410) that detects the occurrence of a fire by detecting flames in the event of a fire, and an IP camera (420) that detects the fire via wired or wireless means.

[0068] The flame detector (410) detects a fire by analyzing a combination of optical characteristics such as ultraviolet (UV) wavelengths, infrared (IR) wavelengths, and flickering generated from the flame, and the IP camera (420) may be connected to the internet to determine the fire through video when a fire occurs.

[0069] In addition, the fire detection unit (400) can use various sensors capable of detecting fire, such as smoke detectors and heat detectors, in addition to the flame detector (410) and IP camera (420).

[0070] The control unit (500) is connected to the fire detection unit (400) and controls the operation of the fire extinguishing equipment unit (200) and the valve unit (300). It may include a drive control unit (510) that controls the operation of the fire extinguishing equipment unit (200) and the valve unit (300), and an electric cutoff unit (520) that cuts off the electricity between the electric vehicle and the charging system (S), i.e., stops charging.

[0071] Therefore, when a fire is detected by the fire detection unit (400), the control unit (500) can open the secondary valve (312) and drive the dedicated pump (220) to supply fire extinguishing liquid to the fire location.

[0073] The operation of the fire extinguishing equipment for suppressing electric vehicle fires according to the present invention is described in more detail as follows.

[0074] Normally, the primary pipe (313), which is the lower part of the pre-action valve, is always filled with pressurized water supplied from the fire extinguishing liquid supply pipe (210), and the supply of fire extinguishing liquid from the primary pipe (313) to the water supply pipe (3000) is blocked by the primary valve (311) provided in the primary pipe (313).

[0075] In addition, the secondary pipe (314), which is the upper part of the pre-action valve, is normally kept empty at atmospheric pressure, and the supply of fire extinguishing liquid to the secondary pipe (314) and the water supply pipe (3000) is blocked by the secondary valve (312) provided in the secondary pipe (314).

[0076] Additionally, the indoor fire hydrant (230) is normally filled with pressurized water, and the supply of fire extinguishing liquid from the indoor fire hydrant (320) to the water supply pipe (3000) is blocked by the indoor fire hydrant valve (320) provided in the indoor fire hydrant pipe (321).

[0077] If a fire occurs, the flame detector (410) and IP camera (420) can detect the fire or the sprinkler discharge port (4200) can open and send a signal to the control unit (500). In this case, a person can detect the fire and manually operate the valve unit (300), and the electrical cutoff unit (520) can electrically cut off the charging system (S) and the electric vehicle.

[0078] At this time, since the pre-action valve opens the secondary valve (312) only when both fire detection and the opening of the sprinkler discharge port (4200) are achieved, the primary valve (311) and indoor fire hydrant valve (320) of the person in charge can be opened first.

[0079] When a person in charge opens the primary valve (311), the fire extinguishing liquid filled in the primary pipe (313) can flow into the water supply pipe (3000), and when the indoor fire hydrant valve (320) is opened, the fire extinguishing liquid of the indoor fire hydrant (230) can flow into the water supply pipe (3000).

[0080] The opening of the primary valve (311) and the indoor fire hydrant valve (230) as described above may occur simultaneously or sequentially. When the valves are opened, high-pressure fire extinguishing liquid flows into the water supply pipe (3000), and due to the pressure, the second lower water supply facility (1200) and the third lower water supply facility (1300) can be sequentially deployed and positioned on the underside of the electric vehicle. Additionally, due to the high-pressure fire extinguishing liquid, the second side water supply facility (2200) can be deployed and positioned on the side of the electric vehicle.

[0081] Subsequently, extinguishing liquid can be discharged from the first, second, and third lower discharge ports to spray extinguishing liquid onto the lower part of the electric vehicle, and extinguishing liquid can be discharged from the first and second side discharge ports to form a water film on the side of the electric vehicle.

[0082] As described above, when the discharge of the extinguishing liquid proceeds, the drive control unit (510) can drive the dedicated pump (220) to continuously supply the extinguishing liquid.

[0083] As the fire progresses, if the conditions for operating the pre-action valve are met, the drive control unit (510) can open the secondary valve (312).

[0084] When the secondary valve (312) is opened, the fire extinguishing liquid in the primary pipe (313) flows into the secondary pipe (314), and the fire extinguishing liquid in the secondary pipe (314) flows into the water supply pipe (3000) and the sprinkler pipe (4100).

[0085] The fire extinguishing liquid flowing from the secondary pipe (314) into the water supply pipe (3000) is combined with the fire extinguishing liquid flowing from the primary pipe (313) to carry out fire extinguishing, and the fire extinguishing liquid flowing into the sprinkler pipe (4100) can be discharged to the top of the electric vehicle through the open sprinkler discharge port (4200).

[0086] That is, the fire extinguishing liquid in the fire extinguishing liquid tank (210) is supplied to the primary pipe (313), secondary pipe (314), sprinkler pipe (4100), and indoor fire hydrant pipe (321) respectively through the fire extinguishing liquid supply pipe (201) according to the operation of the dedicated pump (220) of the drive control unit (510), and fire suppression can be achieved.

[0087] As described above, the present invention allows for the rapid and concentrated application of water to the underside of an electric vehicle through manual operation by a relevant person in the event of a fire in the electric vehicle, and also prevents the spread of fire by forming a water film on the side of the electric vehicle.

[0088] In addition, since fire extinguishing fluid can be supplied using both the pre-action valve and the indoor fire hydrant, firefighting can proceed even if one of them fails.

[0090] In the foregoing, the configuration and operation of a fire extinguishing system for electric vehicles according to the present invention have been illustrated with reference to the detailed description and drawings; however, this is merely an example, and various changes and modifications are possible within the scope of the technical concept of the present invention. Explanation of the symbols

[0092] S: Charging system 100: Main Sub-unit 1000: Lower water supply section 1100: 1st Lower Water Supply Facility 1110: 1st Main Pipe 1120: 1st extension pipe 1130: 1st lower discharge port 1200: 2nd Lower Water Supply Facility 1210: 2nd Main Pipe 1220: 2nd extension pipe 1230: Second lower discharge port 1300: 3rd Lower Water Supply Facility 1310: 3rd Main Pipe 1320: 3rd extension pipe 1330: 3rd lower discharge port 2000: Side water supply unit 2100: 1st Side Water Supply System 2110: 1st side pipe 2120: First side discharge port 2200: 2nd Side Water Supply System 2210: Second side pipe 2220: Second side discharge port 3000: Water supply pipe 4000: Sprinkler unit 200: Firefighting Equipment Department 201: Fire extinguishing fluid supply pipe 210: Digestive fluid tank 220: Dedicated pump 230: Indoor fire hydrant 300: Valve section 310: Pre-action valve section 311: Primary valve 312: Secondary valve 313: Primary piping 314: Secondary piping 320: Indoor fire hydrant valve 321: Indoor fire hydrant piping 400: Fire detection unit 410: Flame detector 420: IP Camera 500: Control unit 510: Drive control unit 520: Electrical cutoff

Claims

Claim 1 It is installed in an indoor parking lot equipped with an electric vehicle charging system, and comprises: a water supply unit having a structure that can be deployed by external force and simultaneously supplying fire extinguishing liquid to the bottom and side of the electric vehicle; a fire extinguishing equipment unit for storing and supplying fire extinguishing liquid supplied to the water supply unit; a valve unit for controlling the movement of fire extinguishing liquid supplied from the fire extinguishing equipment unit to the water supply unit; a fire detection unit installed on the ceiling of the indoor parking lot to detect a fire; and a control unit connected to the fire detection unit to control the operation of the fire extinguishing equipment unit and the valve unit, wherein the water supply unit comprises: a bottom water supply unit for supplying fire extinguishing liquid to the bottom of the electric vehicle; a side water supply unit for forming a water film on the side of the electric vehicle; and a water supply pipe connecting the valve unit and the bottom water supply unit and the side water supply unit. The apparatus includes a sprinkler unit connected to the valve unit and supplying fire extinguishing liquid to the upper part of the electric vehicle, wherein the lower water supply unit comprises: a first lower water supply facility including a hollow first main pipe having a certain length and connected to the water supply pipe, a first extension pipe extending in both directions from the tip of the first main pipe, and first lower discharge ports each at both ends of the first extension pipe for discharging fire extinguishing liquid upward; and a second lower water supply facility including a hollow second main pipe having a certain length and inserted into the interior of the first main pipe, a second extension pipe extending in both directions from the tip of the second main pipe, and second lower discharge ports each at both ends of the second extension pipe for discharging fire extinguishing liquid upward.A fire extinguishing system for suppressing an electric vehicle fire, comprising a third lower water supply facility including a third main pipe having a predetermined length and inserted into the interior of the second main pipe, a third extension pipe extending bidirectionally from the tip of the third main pipe, and third lower discharge ports each discharging fire extinguishing liquid upwardly from both ends of the third extension pipe; wherein, in the event of an electric vehicle fire, the first, second, and third main pipes are deployed in a telescopic manner by the pressure of the supplied fire extinguishing liquid to supply fire extinguishing liquid to the lower part of the electric vehicle; and, in the event of an electric vehicle fire, the fire extinguishing liquid is supplied to the water supply unit manually or automatically, and the fire is suppressed by deploying the water supply unit by the pressure of the supplied fire extinguishing liquid. Claim 2 delete Claim 3 delete Claim 4 It is installed in an indoor parking lot equipped with an electric vehicle charging system, and comprises: a water supply unit having a structure that can be deployed by external force and simultaneously spraying fire extinguishing liquid onto the bottom and side of the electric vehicle; a fire extinguishing equipment unit for storing and supplying the fire extinguishing liquid supplied to the water supply unit; a valve unit for controlling the movement of the fire extinguishing liquid supplied from the fire extinguishing equipment unit to the water supply unit; a fire detection unit installed on the ceiling of the indoor parking lot to detect a fire; and a control unit connected to the fire detection unit to control the operation of the fire extinguishing equipment unit and the valve unit, wherein, in the event of a fire in the electric vehicle, the fire extinguishing liquid is supplied to the water supply unit manually or automatically, and the water supply unit is deployed by the pressure of the supplied fire extinguishing liquid to suppress the fire, and the water supply unit comprises: a bottom water supply unit for spraying fire extinguishing liquid onto the bottom of the electric vehicle; a side water supply unit for forming a water film on the side of the electric vehicle; and a water supply pipe connecting the valve unit, the bottom water supply unit, and the side water supply unit. A fire extinguishing system for suppressing a fire in an electric vehicle, comprising a sprinkler unit connected to the valve unit and supplying fire extinguishing liquid to the upper part of the electric vehicle, wherein the side water supply unit comprises: a first side water supply facility including a hollow first side pipe having a certain length and connected to the water supply pipe and a first side discharge port at one end of the first side pipe for discharging fire extinguishing liquid upward; and a second side water supply facility including a second side pipe having a certain length and inserted into the interior of the first side pipe and a second side discharge port at one end of the second side pipe for discharging fire extinguishing liquid upward, wherein when a fire occurs in the electric vehicle, the first and second side pipes are deployed in a telescopic manner by the pressure of the supplied fire extinguishing liquid to form a water film on the side of the electric vehicle. Claim 5 delete Claim 6 It is installed in an indoor parking lot equipped with an electric vehicle charging system, and comprises: a water supply unit having a structure that can be deployed by external force and simultaneously spraying fire extinguishing liquid onto the bottom and sides of the electric vehicle; a fire extinguishing equipment unit for storing and supplying the fire extinguishing liquid supplied to the water supply unit; a valve unit for controlling the movement of the fire extinguishing liquid supplied from the fire extinguishing equipment unit to the water supply unit; a fire detection unit installed on the ceiling of the indoor parking lot to detect a fire; and a control unit connected to the fire detection unit to control the operation of the fire extinguishing equipment unit and the valve unit, wherein, in the event of a fire in the electric vehicle, the fire extinguishing liquid is supplied to the water supply unit manually or automatically, and the fire extinguishing liquid is deployed by the pressure of the supplied fire extinguishing liquid to suppress the fire, and the fire extinguishing equipment unit comprises: a fire extinguishing liquid tank in which the fire extinguishing liquid is stored; a fire extinguishing liquid supply pipe through which the fire extinguishing liquid stored in the fire extinguishing liquid tank moves; and a dedicated pump for pressurizing and moving the fire extinguishing liquid within the fire extinguishing liquid supply pipe. A fire extinguishing system for suppressing fires in electric vehicles, comprising an indoor fire hydrant connected to the fire extinguishing liquid supply pipe and the water supply unit to supply the fire extinguishing liquid to the water supply unit, wherein the valve unit comprises: a pre-action valve unit that controls the movement of the fire extinguishing liquid of the fire extinguishing system unit to the water supply unit using a pre-action valve; and an indoor fire hydrant valve that controls the movement of the fire extinguishing liquid of the indoor fire hydrant to the water supply unit, wherein the pre-action valve unit comprises: a primary valve that controls the movement of the fire extinguishing liquid to the water supply unit at the lower end of the pre-action valve; and a secondary valve that controls the movement of the fire extinguishing liquid to the water supply unit and sprinklers at the upper end of the pre-action valve. Claim 7 A fire extinguishing system for suppressing fires in electric vehicles, characterized in that, in claim 6, the indoor fire hydrant valve and the primary valve are manually operated shut-off valves, and the secondary valve is an automatically operated check valve. Claim 8 A fire extinguishing system for an electric vehicle, characterized in that, in claim 1, the fire detection unit comprises: a flame detector that detects a flame at the time of a fire to detect the occurrence of a fire; and an IP camera that detects the fire via wired or wireless connection.

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