An apparatus and method for extinguishing a fire in an electric vehicle

Abstract

The present invention relates to an electric vehicle fire suppression device and method. When a fire occurs in an electric vehicle, the electric vehicle fire suppression device is moved toward the electric vehicle, and the entire electric vehicle is enclosed and sealed using a barrier, thereby blocking the oxygen supply and preventing the leakage of extinguishing water and harmful gases, which can effectively suppress the spread of the fire. Additionally, when a fire occurs in an electric vehicle, a drilling tool (e.g., a drill) is used to drill into the lower part of the electric vehicle's battery, and then extinguishing the fire by directly spraying extinguishing water through water pressure, thereby delivering the extinguishing water to the inside of the battery and effectively suppressing thermal runaway.

Description

Technology Field

[0001] The present invention relates to an electric vehicle fire suppression device and method, and more specifically, to an electric vehicle fire suppression device and method that, when a fire occurs in an electric vehicle, can effectively suppress the spread of fire by moving the electric vehicle fire suppression device toward the electric vehicle and then enveloping and sealing the entire electric vehicle using a barrier to cut off the oxygen supply and prevent leakage of extinguishing water and harmful gases, and can effectively suppress an electric vehicle fire caused by thermal runaway by, when a fire occurs in an electric vehicle, drilling a hole in the lower part of the electric vehicle battery using a drilling tool (e.g., a drill, etc.) and then directly spraying extinguishing water into the battery using water pressure to suppress the fire. Background Technology

[0002] Generally, automobiles have used internal combustion engines powered by gasoline or diesel fuel; however, due to the problem of carbon dioxide emissions from these engines, the adoption of eco-friendly electric vehicles (EVs) has been increasing recently. This trend reflects the growing global push to phase out internal combustion engine vehicles due to global warming, while the adoption of EVs continues to rise steadily every year.

[0003] The battery, which is the most important component of an electric vehicle, is configured as a single battery pack by incorporating multiple battery modules to enable long-term use on a single charge, and is then mounted on the underside of the vehicle.

[0004] Battery packs can catch fire due to various causes, including external impact, and this can occur even while driving or charging.

[0005] Thermal runaway fires in electric vehicles are the most dangerous and complex form of fire that can occur in EV batteries, a phenomenon in which the internal thermal and chemical instability of lithium-ion batteries triggers a rapid chain reaction.

[0006] Thermal runaway refers to a phenomenon in which heat generated inside a lithium-ion battery exceeds its internal cooling capacity, triggering a chain reaction of heat; this condition causes the internal temperature to rise to an uncontrollable level, leading to an explosive fire.

[0007] With the increasing adoption of electric vehicles (EVs), EV fire accidents are gradually on the rise. Since these fires spread rapidly due to thermal runaway and are difficult to suppress with conventional fire extinguishing devices, and given that battery modules located at the bottom of the vehicle are hard to access, along with the generation of toxic gases and the risk of explosion, there is an urgent need to develop fire suppression devices specialized for EV fires.

[0009] Korean Registered Patent No. 10-2407326 (registered on June 20, 2022) presents a cooling tank for stabilizing the battery of an electric vehicle that has caught fire. The patent proposes installing inner and outer walls to enclose the electric vehicle and filling the interior with water to immerse the vehicle's battery, thereby achieving stabilization.

[0010] In addition, Korean Registered Patent No. 10-2376222 (registered on March 15, 2022) and Korean Registered Patent No. 10-2431466 (registered on August 8, 2022) present a cooling tank and method in which a lifting tube or lifting bag is installed on the floor of an electric vehicle to lift the electric vehicle, and while the electric vehicle is lifted, individual waterproof plates are connected to the lifting tube or laid on the floor and a wall is erected, thereby preventing firefighting water from being discharged through the gap between the existing floor and the wall while stabilizing the battery.

[0011] All of the aforementioned prior art documents apply a method of creating a temporary tank to contain an electric vehicle and then filling it with firefighting water to submerge the battery.

[0012] However, while conventional electric vehicle fire suppression methods have significantly reduced the amount of firefighting water used compared to previous spraying methods, they still require enough water to submerge the vehicle. Furthermore, there is a problem in that battery electrolyte, damaged by explosions, mixes with the firefighting water and contaminates nearby groundwater, rivers, and soil when discharged.

[0013] Therefore, the need has been raised for a new fire suppression system optimized for electric vehicle fires that can rapidly stabilize the battery while reducing the use of firefighting water to prevent the fire from continuing. Prior art literature

[0014] Korean Registered Patent No. 10-2407326 (Registered June 20, 2022): Cooling tank for stabilizing a battery of an electric vehicle that has caught fire Korean Registered Patent No. 10-2376222 (Registered March 15, 2022): Cooling tank for stabilizing a battery of an electric vehicle that has caught fire Korean Registered Patent No. 10-2431466 (Registered August 8, 2022): Cooling tank for stabilizing a battery in the event of an electric vehicle fire and a method for stabilizing an electric vehicle battery using the same The problem to be solved

[0015] The present invention was developed to improve upon the aforementioned problems. The first objective of the present invention is to provide an electric vehicle fire suppression device and method capable of effectively suppressing the spread of fire by moving the electric vehicle fire suppression device toward the electric vehicle and then enveloping and sealing the entire electric vehicle using a barrier to cut off the oxygen supply and prevent leakage of extinguishing water and harmful gases when a fire occurs in the electric vehicle.

[0017] The second problem that the present invention aims to solve is to provide an electric vehicle fire suppression device and method capable of effectively suppressing thermal runaway by using a drilling tool (e.g., a drill) to drill a hole in the lower part of the electric vehicle battery and then spraying fire extinguishing water directly into the interior of the battery using water pressure to suppress the fire when a fire occurs in the electric vehicle.

[0019] The third problem that the present invention aims to solve is to provide an electric vehicle fire suppression device and method in which an AI-based thermal image analysis algorithm enables rapid response by pre-detecting signs of fire and automatically determining priorities, accurate and efficient fire suppression without direct human access, and integrated response with smart cities, allowing for real-time connection with fire departments and control systems to enable automatic dispatch in the event of a fire.

[0021] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0022] To achieve the above objective, an electric vehicle fire suppression device according to an example of the present invention is an electric vehicle fire suppression system for suppressing a fire in an electric vehicle, and has the technical features comprising: a base frame capable of being seated on the lower part of the electric vehicle; a battery internal fire extinguishing water spraying means installed on one side of the base frame for perforating the lower surface of the battery of the electric vehicle where a fire has occurred, spraying fire extinguishing water into the perforated hole, and cooling the battery; a barrier installed on the upper side of the base frame for covering and sealing the entire exterior of the electric vehicle; a moving means detachably installed on the base frame to move the battery internal fire extinguishing water spraying means and the barrier together; a barrier opening / closing means for selectively opening or closing the barrier; and an external fire extinguishing water spraying means installed inside the barrier for spraying fire extinguishing water and cooling the surface of the electric vehicle where a fire has occurred.

[0024] The above-described battery internal fire extinguishing water spraying means may be configured to include: a hollow-structured perforating pipe having a perforating tool (perforating tool) for perforating the lower surface of the battery and a fire extinguishing water spraying nozzle part for spraying fire extinguishing water, which is installed to be rotatable at a certain angle on one side of the base frame; and a perforating pipe angle adjustment lever for adjusting the angle of the perforating pipe to prevent the perforating tool from interfering with the battery when the perforating pipe is moved toward the lower surface of the battery.

[0026] The above-mentioned moving means includes an electric moving cart that is detachably installed on the other side of the base frame, wherein the electric moving cart can be controlled directly or remotely by a driver and includes multi-directional drive wheels to enable precise positional movement even in confined spaces.

[0028] The above barrier opening and closing means may be configured to include: a rotary arm configured to open and close the barrier by rotating around a hinge; a coil spring fixedly installed on the base frame to elastically support the rotary arm; a winding roller rotatably installed on the upper part of the vertical frame of the base frame and the upper part of the rotary arm to elastically wind or unwind the barrier; and a driving motor that controls the rotation of the rotary arm by rotating the winding roller in forward and reverse directions.

[0030] The above barrier is flexible and composed of non-combustible or flame-retardant material, so that it can cover the entire electric vehicle where a fire has occurred to cut off the oxygen supply and prevent the leakage of extinguishing water and harmful gases, thereby suppressing the spread of fire.

[0032] The above external fire extinguishing water spraying means includes a heat sensor-based automatic targeting nozzle and can automatically detect high-temperature zones and selectively spray fire extinguishing water.

[0034] The fire extinguishing water supply source is connected to an external water source or includes a built-in pressure tank and pressurized pump, enabling it to independently supply fire extinguishing water even without an external water source in emergency situations.

[0036] Meanwhile, an electric vehicle fire suppression device according to another example of the present invention is an electric vehicle fire suppression system for suppressing a fire in an electric vehicle, comprising: a base frame capable of being seated on the lower part of the electric vehicle; a battery internal fire extinguishing water spraying means installed on one side of the base frame for perforating the lower surface of the battery of the electric vehicle where a fire has occurred, spraying fire extinguishing water into the perforated hole, and cooling the battery; a barrier installed on the upper side of the base frame capable of covering and sealing the entire exterior of the electric vehicle; a moving means detachably installed on the base frame to move the battery internal fire extinguishing water spraying means and the barrier together; a barrier opening / closing means capable of selectively opening or closing the barrier; an external fire extinguishing water spraying means installed inside the barrier for spraying fire extinguishing water and cooling the surface of the electric vehicle where a fire has occurred; thermal and optical fire detection sensors for detecting the occurrence of a fire in the electric vehicle; a GNSS-based position sensor for tracking the real-time location of the electric vehicle where a fire has occurred; a vision system for recording and monitoring the fire suppression process as an image; and a control unit for controlling the fire detection of the electric vehicle and a series of fire suppression processes. There are technical features configured including.

[0038] The above control unit includes an artificial intelligence-based thermal image analysis algorithm and is equipped with a function to predict signs of thermal runaway in an electric vehicle in advance, determine suppression priorities, and automatically determine the order of operation.

[0040] The vision system described above includes a license plate recognition function for electric vehicles, enabling the identification and history tracking of vehicles on fire, and determines the risk level and automatically sets the suppression strategy by linking with a historical vehicle database.

[0042] An electric vehicle fire suppression device according to another example of the present invention further includes a remote control communication module, and is linked with a smart city integrated safety network, a fire department, and a vehicle control system to receive relevant information immediately upon the occurrence of a fire and enable automatic dispatch.

[0044] An electric vehicle fire suppression device according to another example of the present invention includes an autonomous driving module and can perform obstacle avoidance and secure an accurate stopping position by utilizing front and side LIDAR sensors, a video camera, and an ultrasonic sensor.

[0046] Furthermore, the electric vehicle fire suppression method according to the present invention is an electric vehicle fire detection and suppression method for detecting and suppressing a fire in an electric vehicle, comprising: a step of detecting the occurrence of a fire in an electric vehicle (S10); a step of determining the occurrence of a fire in an electric vehicle (S20); a step of tracking the real-time location of the electric vehicle where the fire occurred if, as a result of the determination, it is determined to be a fire (S30); a step of moving an electric vehicle fire suppression device to the location of the fire (S40); a step of covering and sealing the entire exterior of the electric vehicle (S50); a step of spraying extinguishing water on the exterior of the electric vehicle and cooling it (S60); a step of perforating the bottom surface of the battery of the electric vehicle, spraying extinguishing water into the perforated hole, and cooling the battery (S70); a step of recording and monitoring the fire suppression process as a video (S80); and a step of controlling the fire detection of the electric vehicle and a series of fire suppression processes (S90).

[0048] In the above step (S30), by using the remote control communication module (180), the smart city integrated safety network, fire department, and vehicle control system are linked to receive the relevant information immediately upon the occurrence of a fire and enable automatic dispatch.

[0050] In the above step (S80), the vision system enables fire identification and history tracking of the electric vehicle by including a license plate recognition function of the electric vehicle, and in the above step (S90), the control unit determines the risk level in conjunction with the past vehicle database and automatically sets a suppression strategy.

[0052] In the above step (S90), the control unit includes an artificial intelligence-based thermal image analysis algorithm to predict signs of thermal runaway in the electric vehicle in advance, determine the suppression priority, and automatically determine the operation sequence. Effects of the invention

[0053] As explained above, the present invention has the following effects.

[0054] First, as an electric vehicle fire suppression device, this technology is highly useful industrially for suppressing the spread of fire and preventing casualties in EV charging stations, underground parking lots, logistics warehouses, and the like.

[0055] Second, in the event of a fire in an electric vehicle, the fire can be suppressed by using a drilling tool (e.g., a drill) to perforate the bottom of the electric vehicle's battery and then directly spraying extinguishing water into the battery using water pressure, thereby delivering the extinguishing water to the inside of the battery and effectively suppressing thermal runaway.

[0056] Third, in the event of a fire in an electric vehicle, the electric vehicle fire suppression device is moved toward the electric vehicle, and the entire electric vehicle is enclosed and sealed using a barrier, thereby cutting off the external oxygen supply and preventing the leakage of extinguishing water and harmful gases, which can effectively suppress the spread of the fire.

[0057] Fourth, the means of movement includes an electric moving trolley that is detachably installed on the other side of the base frame, which can be controlled remotely, and includes multi-directional drive wheels so that precise positional movement is possible even in confined spaces.

[0058] Fifth, the AI-based thermal image analysis algorithm enables rapid response by pre-detecting signs of fire and automatically determining priorities.

[0059] Sixth, accurate and efficient fire suppression is possible without direct human access.

[0060] Seventh, vehicle information can be automatically analyzed through license plate recognition and historical database integration, and customized suppression strategies can be established by considering vehicle characteristics and risk levels.

[0061] Eighth, it enables integrated response with smart cities, connecting in real-time with fire departments and control systems, allowing for automatic dispatch in the event of a fire.

[0062] Ninth, damage can be minimized by entering within the golden time, and autonomous driving-based accessibility is improved.

[0063] Tenth, through LIDAR, ultrasonic, and camera sensors, it is possible to stop at precise locations via autonomous driving, and it is capable of avoiding obstacles and rapidly approaching vehicles on fire even in complex urban areas or underground parking lots.

[0065] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0066] FIG. 1 is a front perspective view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention. FIG. 2 is a rear perspective view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention. FIG. 3 is a side view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention. FIG. 4 is a plan view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention. FIGS. 5 and 6 are perspective views illustrating a battery internal fire extinguishing water spraying means in an electric vehicle fire suppression device according to a first embodiment of the present invention. FIGS. 7 and 8 are side views illustrating a battery internal fire extinguishing water spraying means in an electric vehicle fire suppression device according to a first embodiment of the present invention. FIGS. 9 to 11 are side views illustrating the operation of a barrier opening and closing means in an electric vehicle fire suppression device according to a first embodiment of the present invention. FIG. 12 is a drawing illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention, wherein a perforation tool is used to perforate the lower part of the electric vehicle battery, and then fire extinguishing water is sprayed directly into the battery using water pressure to suppress the fire, while simultaneously suppressing the fire while the entire electric vehicle is sealed by enveloping it with a barrier. FIG. 13 is a front perspective view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention. FIG. 14 is a rear perspective view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention. FIG. 15 is a side view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention. FIG. 16 is a plan view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention. FIGS. 17 and 18 are side views illustrating the operation of a barrier opening and closing means in an electric vehicle fire suppression device according to a second embodiment of the present invention. FIG. 19 is a configuration diagram of an electric vehicle fire suppression device according to a second embodiment of the present invention. FIG. 20 is a flowchart illustrating an electric vehicle fire suppression method according to a second embodiment of the present invention. Specific details for implementing the invention

[0067] Hereinafter, an electric vehicle fire suppression device and method according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0068] FIG. 1 is a front perspective view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention, FIG. 2 is a rear perspective view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention, FIG. 3 is a side view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention, and FIG. 4 is a plan view illustrating an electric vehicle fire suppression device according to a first embodiment of the present invention.

[0069] FIGS. 5 and 6 are perspective views illustrating a means for spraying fire extinguishing water inside a battery in an electric vehicle fire suppression device according to a first embodiment of the present invention, and FIGS. 7 and 8 are side views illustrating a means for spraying fire extinguishing water inside a battery in an electric vehicle fire suppression device according to a first embodiment of the present invention.

[0070] FIGS. 9 to 11 are side views illustrating the operation of a barrier opening and closing means in an electric vehicle fire suppression device according to a first embodiment of the present invention.

[0071] FIG. 12 is a drawing illustrating an electric vehicle fire suppression device according to the first embodiment of the present invention, in which a perforation tool is used to perforate the lower part of the electric vehicle battery, and then fire extinguishing water is sprayed directly into the battery through water pressure to suppress the fire, while simultaneously using a barrier to enclose and seal the entire electric vehicle to suppress the fire.

[0072] Referring to FIGS. 1 to 12, the electric vehicle fire suppression device (100) according to the first embodiment of the present invention is an electric vehicle fire suppression system for suppressing a fire in an electric vehicle (1) by spraying fire extinguishing water not only inside the battery but also outside the electric vehicle.

[0073] An electric vehicle fire suppression device (100) according to a first embodiment of the present invention comprises: a base frame (10) that can be seated on the lower part of an electric vehicle (1); a battery internal fire extinguishing water spraying means (110) installed on one side of the base frame (10) for perforating the lower surface of the battery (1a) of the electric vehicle (1) where a fire has occurred, spraying fire extinguishing water into the perforated hole, and cooling the battery (1a); a barrier (20) installed on the upper side of the base frame (10) to cover and seal the entire exterior of the electric vehicle; a moving means (30) detachably installed on the base frame (10) to move the battery internal fire extinguishing water spraying means (110) and the barrier (20) together; a barrier opening / closing means (120) for selectively opening or closing the barrier (20); and an external fire extinguishing water spraying means (130) installed inside the barrier (20) to spray fire extinguishing water and cool the exterior of the electric vehicle (1) where a fire has occurred. It consists of including

[0075] The above battery internal fire extinguishing water spraying means (110) may be configured to include: a hollow structured perforating pipe (111) having a perforating tool (112) for perforating the lower surface of the battery (1a) and a fire extinguishing water spraying nozzle part (113) for spraying fire extinguishing water, which is installed to be rotatable at a certain angle on one side of the base frame (10); and a perforating pipe angle adjustment lever (115) for adjusting the angle of the perforating pipe (111) to prevent the perforating tool from interfering with the battery (1a) when the perforating pipe (111) is moved toward the lower surface of the battery (1a).

[0077] The above-mentioned moving means (30) includes an electric moving cart that is detachably installed on the other side of the base frame (10), and the electric moving cart can be controlled directly or remotely by a driver and includes multi-directional drive wheels (32) to enable precise positional movement even in confined spaces.

[0078] For example, the means of transport (30) is equipped with a driving wheel (32) and a control plate (33), etc. on an electric moving trolley frame (31), and a connection part (34) with a base frame (10) may be formed at the front of the electric moving trolley frame (31).

[0080] The above barrier opening / closing means (120) may include both a configuration having one winding roller (123) as shown in FIGS. 1 to 11 (first embodiment) and a configuration having two winding rollers (123) (123') as shown in FIGS. 13 to 18 (second embodiment).

[0081] First, as illustrated in FIGS. 1 to 11 and FIG. 12, the barrier opening / closing means (120) may be configured to include: a rotating arm (121) configured to rotate around a hinge (H) to open / close the barrier (20); a coil spring (122) fixedly installed on the base frame (10) to elastically support the rotating arm (121); a winding roller (123) rotatably installed on the upper end of the vertical frame (11) of the base frame (10) and the upper end of the rotating arm (121) to elastically wind or unwind the barrier (20); and a driving motor (124) that controls the rotation of the rotating arm (121) by rotating the winding roller (123) (123') in forward and reverse directions.

[0082] The above barrier (20) is flexible and is made of a non-combustible or flame-retardant material to cover the entire electric vehicle (1) where a fire has occurred, thereby blocking the oxygen supply and preventing the leakage of extinguishing water and harmful gases to suppress the spread of fire.

[0083] The above barrier (20) is configured to block all front, rear, left, and right directions of the electric vehicle (1), and a means to stably maintain the barrier (20) downward, such as a weight (21), may be installed at the bottom of the barrier (20). The weight must be installed so as not to interfere with the winding of the barrier.

[0085] The external fire extinguishing water spraying means (130) installed inside the above barrier (20) includes a flexible fire extinguishing water pipe (131) and a nozzle (135).

[0086] That is, the fire extinguishing water pipe (131) is formed separately and flexibly on the inner wall surface of the barrier (20) or formed integrally on the inner wall surface so as not to be interfered with when the barrier (20) is wound onto the winding roller (123). The nozzle (135) is configured as a heat sensor-based automatic targeting nozzle to automatically search for high-temperature zones and selectively spray fire extinguishing water.

[0087] In other words, the heat sensor-based automatic targeting nozzle can effectively reduce cooling time by automatically detecting high-temperature zones and selectively spraying extinguishing water.

[0088] The fire extinguishing water supply source is connected to an external water source or includes a built-in pressure tank and pressurized pump, enabling it to independently supply fire extinguishing water even without an external water source in emergency situations.

[0089] The operation of the electric vehicle fire suppression device (100) according to the first embodiment of the present invention configured as described above is as follows.

[0090] The electric vehicle fire suppression device (100) is moved to the fire location using a means of transportation, such that the drilling tool of the drilling pipe is positioned on the lower surface of the battery (1a) of the electric vehicle (1).

[0091] The barrier opening / closing means (120) is operated to close the barrier (20) and cover the entire exterior of the electric vehicle (1), thereby sealing it.

[0092] When looking at the operation of the barrier opening / closing means (120), the drive motor (124) is driven to overcome the elastic force of the coil spring (122) and rotate the rotating arm (121), thereby unwinding the barrier (20) wound on the winding roller (123) so that the barrier (20) covers the entire exterior of the electric vehicle (1) and seals it.

[0093] Firefighting water is sprayed and cooled on the outside of the electric vehicle (1) through the nozzle (132) of the flexible firefighting water pipe (131) installed inside the barrier (20), and at the same time, the perforation pipe angle adjustment lever (115) is rotated to perforate the bottom surface of the battery (1a) of the electric vehicle (1), and then firefighting water is sprayed into the perforated hole through the spray nozzle part (113) to cool the battery (1a). After the fire is extinguished, the barrier opening / closing means (120) is operated to open the barrier (20).

[0095] Meanwhile, FIG. 13 is a front perspective view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention, FIG. 14 is a rear perspective view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention, FIG. 15 is a side view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention, FIG. 16 is a plan view illustrating an electric vehicle fire suppression device according to a second embodiment of the present invention, and FIG. 17 and FIG. 18 are side views explaining the operation of a barrier opening and closing means in an electric vehicle fire suppression device according to a second embodiment of the present invention.

[0096] FIG. 19 is a configuration diagram of an electric vehicle fire suppression device according to a second embodiment of the present invention, and FIG. 20 is a flowchart illustrating an electric vehicle fire suppression method according to a second embodiment of the present invention. In the drawings, the same numbers are assigned to components identical to those in the first embodiment, and a detailed description thereof is omitted.

[0097] Referring to FIGS. 12, 13 to 20, an electric vehicle fire suppression device (200) according to a second embodiment of the present invention is an electric vehicle fire suppression system for suppressing a fire in an electric vehicle (1), comprising: a base frame (10) that can be seated on the lower part of the electric vehicle (1); a battery internal fire extinguishing water spraying means (110) installed on one side of the base frame (10) for perforating the lower surface of the battery (1a) of the electric vehicle (1) where a fire has occurred, spraying fire extinguishing water into the perforated hole, and cooling the battery (1a); a barrier (20) installed on the upper side of the base frame (10) that can cover and seal the entire exterior of the electric vehicle; a moving means (30) detachably installed on the base frame (10) so as to move the battery internal fire extinguishing water spraying means (110) and the barrier (20) together; and a barrier opening / closing means (120) that can selectively open or close the barrier (20). It is configured to include: an external fire extinguishing water spraying means (130) installed inside the above barrier (20) to spray fire extinguishing water and cool the outside of the electric vehicle (1) where a fire has occurred; a thermal and optical fire detection sensor (140) that detects the occurrence of a fire in the electric vehicle; a GNSS-based position sensor (150) that tracks the real-time location of the electric vehicle where a fire has occurred; a vision system (160) that records and monitors the fire suppression process as video; and a control unit (170) that controls the fire detection and a series of suppression processes of the electric vehicle.

[0098] And the above barrier opening / closing means (120) may be configured to include: a rotating arm (121) configured to rotate around a hinge (H) to open / close the barrier (20); a coil spring (122) fixedly installed on the base frame (10) to elastically support the rotating arm (121); a winding roller (123) (123') rotatably installed on the upper part of the vertical frame (11) of the base frame (10) and the upper part of the rotating arm (121) so as to elastically wind or unwind the barrier (20); and a driving motor (124) (124') that controls the rotation of the rotating arm (121) by rotating the winding roller (123) (123') in forward and reverse directions.

[0100] The above thermal and optical fire detection sensors (140) are sensors for detecting the occurrence of a fire in an electric vehicle (1). The thermal sensor detects the fire by detecting heat or temperature changes, and the optical sensor detects the fire by using light.

[0101] Thermal sensors activate when the temperature rises above a certain level or when a rapid temperature change occurs, while optical sensors detect fires by sensing smoke particles, flames, or light of specific wavelengths.

[0102] The above GNSS-based position sensor (150) is a GNSS (Global Navigation Satellite System)-based position sensor for tracking the real-time location of an electric vehicle 91) that has caught fire, and is a sensor that obtains three-dimensional position information of an object using satellite signals. The GNSS-based position sensor uses signals from various satellite systems such as GPS, GLONASS, and Galileo, and can be utilized in various fields such as LiDAR surveying, autonomous driving, construction, and agriculture.

[0104] The above vision system (160) includes a license plate recognition function for electric vehicles (1) to enable identification and history tracking of fire vehicles, and determines the risk level and automatically sets a suppression strategy in conjunction with a past vehicle database.

[0106] The above control unit (170) includes an artificial intelligence-based thermal image analysis algorithm and has the function of predicting signs of thermal runaway in the electric vehicle in advance, determining the priority of suppression, and automatically determining the order of operation.

[0108] The electric vehicle fire suppression device (200) according to the second embodiment of the present invention further includes a remote control communication module (180) and is linked with a smart city integrated safety network, a fire department, and a vehicle control system to receive relevant information immediately upon the occurrence of a fire and enable automatic dispatch.

[0110] The electric vehicle fire suppression device (200) according to the second embodiment of the present invention includes an autonomous driving module (190), and the autonomous driving module (190) can perform obstacle avoidance and secure an accurate stopping position by utilizing front and side LIDAR sensors, an image camera, and an ultrasonic sensor.

[0112] Meanwhile, referring further to FIGS. 19 and 20, a method for suppressing an electric vehicle fire according to the present invention will be described.

[0113] Referring further to FIGS. 19 and 20, the electric vehicle fire suppression method according to the present invention comprises: a step of detecting the occurrence of a fire in an electric vehicle (1) (S10); a step of determining the occurrence of a fire in an electric vehicle (1) (S20); a step of tracking the real-time location of the electric vehicle (1) where the fire occurred if, as a result of the determination, it is determined to be a fire (S30); a step of moving an electric vehicle fire suppression device (200) to the location of the fire (S40); a step of covering and sealing the entire exterior of the electric vehicle (1) (S50); a step of spraying extinguishing water on the exterior of the electric vehicle (1) and cooling it (S60); a step of perforating the bottom surface of the battery (1a) of the electric vehicle (1), spraying extinguishing water into the perforated hole, and cooling the battery (1a) (S70); a step of recording and monitoring the fire suppression process as an image (S80); and a step of controlling the fire detection of the electric vehicle (1) and a series of fire suppression processes (S90).

[0114] To elaborate, in the above step (S10), a thermal and optical fire detection sensor (140) detects the occurrence of a fire in the electric vehicle (1).

[0115] In the above step (S20), the control unit (170) determines the occurrence of a fire in the electric vehicle (1) based on information received from the thermal and optical fire detection sensors (140).

[0116] In the above step (S30), if the result of the judgment is that a fire has occurred, the GNSS-based position sensor (150) tracks the real-time location of the electric vehicle (1) where the fire occurred.

[0117] In the above step (S30), by using the remote control communication module (180), the smart city integrated safety network, fire department, and vehicle control system are linked to receive the relevant information immediately upon the occurrence of a fire and enable automatic dispatch.

[0118] In the above step (S40), the electric vehicle fire suppression device (200) is moved to the fire location, such that the drilling tool (112) of the drilling pipe (111) is positioned on the lower surface of the battery (1a) of the electric vehicle (1).

[0119] In the above step (S50), the barrier opening / closing means (120) closes the barrier (20) to cover and seal the entire exterior of the electric vehicle (1).

[0120] When looking at the operation of the barrier opening / closing means (120), the drive motor (124) is driven to overcome the elastic force of the coil spring (122) and rotate the rotating arm (121), thereby unwinding the barrier (20) wound on the winding roller (123) so that the barrier (20) covers the entire exterior of the electric vehicle (1) and seals it.

[0121] In the above step (S60), fire extinguishing water is sprayed and cooled on the outside of the electric vehicle (1) through the spray nozzle (135) of the fire extinguishing water spray pipe (131) installed inside the barrier (20).

[0122] In the above step (S70), after turning the perforation pipe angle adjustment lever (115), the electric movable cart is lifted upward to perforate the bottom surface of the battery (1a) of the electric vehicle (1), then the electric movable cart is moved back and forth, the perforation pipe (111) is rotated, and fire extinguishing water is sprayed into the perforated hole through the spray nozzle part (113) to cool the battery (1a).

[0123] In the above step (S80), the vision system (160) records and monitors the fire suppression process as video.

[0124] Furthermore, in the above step (S80), the vision system (160) enables identification and history tracking of the fire vehicle by including a license plate recognition function of the electric vehicle (1), and in the above step (S90), the control unit (170) can determine the risk level and automatically set a suppression strategy in conjunction with a past vehicle database.

[0125] And in the above step (S90), the control unit (170) controls the fire detection of the electric vehicle (1) and a series of fire suppression processes.

[0126] In the above step (S90), the control unit (170) includes an artificial intelligence-based thermal image analysis algorithm to predict signs of thermal runaway in the electric vehicle (1) in advance, determine the priority of suppression, and automatically determine the order of operation.

[0128] As explained above, the present invention has the following effects.

[0129] First, as an electric vehicle fire suppression device, this technology is highly useful industrially for suppressing the spread of fire and preventing casualties in EV charging stations, underground parking lots, logistics warehouses, and the like.

[0130] Second, in the event of a fire in an electric vehicle, the fire can be suppressed by using a drilling tool (e.g., a drill) to perforate the bottom of the electric vehicle's battery and then directly spraying extinguishing water into the battery using water pressure, thereby delivering the extinguishing water to the inside of the battery and effectively suppressing thermal runaway.

[0131] Third, in the event of a fire in an electric vehicle, the electric vehicle fire suppression device is moved toward the electric vehicle, and the entire electric vehicle is enclosed and sealed using a barrier, thereby cutting off the external oxygen supply and preventing the leakage of extinguishing water and harmful gases, which can effectively suppress the spread of the fire.

[0132] Fourth, the means of movement includes an electric moving trolley that is detachably installed on the other side of the base frame, which can be controlled remotely, and includes multi-directional drive wheels so that precise positional movement is possible even in confined spaces.

[0133] Fifth, the AI-based thermal image analysis algorithm enables rapid response by pre-detecting signs of fire and automatically determining priorities.

[0134] Sixth, accurate and efficient fire suppression is possible without direct human access.

[0135] Seventh, vehicle information can be automatically analyzed through license plate recognition and historical database integration, and customized suppression strategies can be established by considering vehicle characteristics and risk levels.

[0136] Eighth, it enables integrated response with smart cities, connecting in real-time with fire departments and control systems, allowing for automatic dispatch in the event of a fire.

[0137] Ninth, damage can be minimized by entering within the golden time, and autonomous driving-based accessibility is improved.

[0138] Tenth, through LIDAR, ultrasonic, and camera sensors, it is possible to stop at precise locations via autonomous driving, and it is capable of avoiding obstacles and rapidly approaching vehicles on fire even in complex urban areas or underground parking lots.

[0140] The present specification and drawings disclose preferred embodiments of the present invention. Although specific terms have been used, they are used merely in a general sense to facilitate the explanation of the technical content of the invention and to aid in understanding the invention, and are not intended to limit the scope of the invention.

[0141] It is obvious to those skilled in the art that, in addition to the embodiments disclosed herein, other variations based on the technical concept of the present invention are possible. Explanation of the symbols

[0142] 100: Electric vehicle fire suppression device according to the first embodiment of the present invention 200: Electric vehicle fire suppression device according to the second embodiment of the present invention 1: Electric vehicle 1a: Electric vehicle battery 10: Base Frame 20: Barrier 30: Means of transportation 110: Battery internal fire extinguishing water spraying means 111: Perforated pipe 112: Drilling Tool 113; Fire extinguishing water spray nozzle part 115; Perforated pipe angle adjustment lever 120: Means for opening and closing the barrier 121; meeting Aam 122; coil spring 123,123': Winding roller 124: Drive motor 130: External fire extinguishing water spraying means 140: Thermal and Optical Fire Detection Sensors 150: GNSS-based position sensor 160: Vision System 170: Control unit 180: Remote control communication module 190: Autonomous driving module

Claims

Claim 1 In an electric vehicle fire suppression device for suppressing a fire in an electric vehicle (1), the device comprises: a base frame (10) that can be seated on the lower part of the electric vehicle (1); a battery internal fire extinguishing water spraying means (110) installed on one side of the base frame (10) for perforating the lower surface of the battery (1a) of the electric vehicle (1) where a fire has occurred, spraying fire extinguishing water into the perforated hole, and cooling the battery (1a); a barrier (20) installed on the upper side of the base frame (10) to cover and seal the entire exterior of the electric vehicle (1); a moving means (30) detachably installed on the base frame (10) to move the battery internal fire extinguishing water spraying means (110) and the barrier (20) together; a barrier opening / closing means (120) for selectively opening or closing the barrier (20); and an external fire extinguishing water spraying means (130) installed inside the barrier (20) to spray fire extinguishing water and cool the exterior of the electric vehicle (1) where a fire has occurred. An electric vehicle fire suppression device including Claim 2 The electric vehicle fire suppression device according to claim 1, wherein the battery internal fire extinguishing water spraying means (110) comprises: a hollow structured perforating pipe (111) installed to be rotatable at a certain angle on one side of the base frame (10) and having a perforating tool (112) for perforating the lower surface of the battery (1a) and a fire extinguishing water spraying nozzle part (113) for spraying fire extinguishing water; and a perforating pipe angle adjustment lever (115) for adjusting the angle of the perforating pipe (111) to prevent the perforating tool (112) from interfering with the battery (1a) when the perforating pipe (111) is moved toward the lower surface of the battery (1a). Claim 3 An electric vehicle fire suppression device according to claim 1, wherein the moving means (30) includes an electric moving cart detachably installed on the other side of the base frame (10), and the electric moving cart is remotely controllable and includes multi-directional drive wheels (32) to enable precise positional movement even in confined spaces. Claim 4 In claim 1, the barrier opening / closing means (120) comprises: a pivot arm (121) configured to rotate around a hinge (H) to open / close the barrier (20); a coil spring (122) fixedly installed on the base frame (10) to elastically support the pivot arm (121); a winding roller (123) rotatably installed on the upper part of the vertical frame (11) of the base frame (10) to elastically wind or unwind the barrier (20); and a driving motor (124) that controls the rotation of the pivot arm (121) by rotating the winding roller (123) in forward and reverse directions; an electric vehicle fire suppression device. Claim 5 An electric vehicle fire suppression device according to claim 1, wherein the barrier (20) is flexible and composed of a non-combustible or flame-retardant material to cover the entire electric vehicle where a fire has occurred, thereby blocking the supply of external oxygen and preventing leakage of extinguishing water and harmful gases to suppress the spread of fire. Claim 6 An electric vehicle fire suppression device according to claim 1, wherein the external fire extinguishing water spraying means (130) installed inside the barrier (20) includes a heat sensor-based automatic targeting nozzle (135) and automatically searches for a high-temperature zone and selectively sprays fire extinguishing water. Claim 7 An electric vehicle fire suppression device according to claim 1, characterized in that the fire extinguishing water supply source is connected to an external water source or includes a built-in pressure water tank and a pressurized pump, so that in an emergency situation, it can independently supply fire extinguishing water even without an external water source. Claim 8 In an electric vehicle fire suppression device for suppressing a fire in an electric vehicle (1), the device comprises: a base frame (10) that can be seated on the lower part of the electric vehicle (1); a battery internal fire extinguishing water spraying means (110) installed on one side of the base frame (10) for perforating the lower surface of the battery (1a) of the electric vehicle (1) where a fire has occurred, spraying fire extinguishing water into the perforated hole, and cooling the battery (1a); a barrier (20) installed on the upper side of the base frame (10) that can cover and seal the entire exterior of the electric vehicle (1); a moving means (30) that is detachably installed on the base frame (10) to move the battery internal fire extinguishing water spraying means (110) and the barrier (20) together; and a barrier opening / closing means (120) that can selectively open or close the barrier (20). An electric vehicle fire suppression device comprising: an external fire extinguishing water spraying means (130) installed inside the above barrier (20) for spraying fire extinguishing water and cooling the outside of the electric vehicle (1) where a fire has occurred; a thermal and optical fire detection sensor (140) for detecting the occurrence of a fire in the electric vehicle (1); a GNSS-based position sensor (150) for tracking the real-time location of the electric vehicle where a fire has occurred; a vision system (160) for recording and monitoring the fire suppression process as video; and a control unit (170) for controlling the fire detection of the electric vehicle (1) and a series of fire suppression processes. Claim 9 In claim 1, the barrier opening / closing means (120) comprises: a rotating arm (121) configured to rotate around a hinge (H) to open / close the barrier (20); a coil spring (122) fixedly installed on the base frame (10) to elastically support the rotating arm (121); a winding roller (123) (123') rotatably installed on the upper end of the vertical frame (11) of the base frame (10) and the upper end of the rotating arm (121) so as to elastically wind or unwind the barrier (20); and a driving motor (124) (124') that controls the rotation of the rotating arm (121) by rotating the winding roller (123) (123') in forward and reverse directions. Claim 10 In claim 8, the electric vehicle fire suppression device is characterized in that the control unit (170) includes an artificial intelligence-based thermal image analysis algorithm to predict signs of thermal runaway in the electric vehicle in advance, determine the suppression priority, and automatically determine the order of operation. Claim 11 In claim 8, the electric vehicle fire suppression device is characterized in that the vision system (160) includes a license plate recognition function of the electric vehicle (1) to enable fire identification and history tracking of the electric vehicle (1), and determines the risk level and automatically sets a suppression strategy in conjunction with a past vehicle database. Claim 12 An electric vehicle fire suppression device according to claim 8, characterized by including a remote control communication module (180) and being linked with a smart city integrated safety network, a fire department, and a vehicle control system to receive information immediately upon occurrence of a fire and to enable automatic dispatch. Claim 13 An electric vehicle fire suppression device according to claim 8, further comprising an autonomous driving module (190), wherein the autonomous driving module (190) utilizes front and side LIDAR sensors, video cameras, and ultrasonic sensors to perform obstacle avoidance and secure an accurate stopping position. Claim 14 A method for detecting and suppressing a fire in an electric vehicle (1), comprising: a step of detecting the occurrence of a fire in the electric vehicle (1) (S10); a step of determining the occurrence of a fire in the electric vehicle (1) (S20); a step of tracking the real-time location of the electric vehicle (1) where the fire occurred if, as a result of the determination, it is determined to be a fire (S30); a step of moving an electric vehicle fire suppression device (200) to the location of the fire (S40); a step of covering and sealing the entire exterior of the electric vehicle (1) (S50); a step of spraying extinguishing water on the exterior of the electric vehicle (1) and cooling it (S60); a step of perforating the bottom surface of the battery (1a) of the electric vehicle (1), spraying extinguishing water into the perforated hole, and cooling the battery (1a) (S70); a step of recording and monitoring the fire suppression process as a video (S80); and a step of controlling the fire detection of the electric vehicle (1) and a series of fire suppression processes (S90). Claim 15 A method for suppressing an electric vehicle fire according to claim 14, wherein in step (S90) above, the control unit (170) includes an artificial intelligence-based thermal image analysis algorithm to predict signs of thermal runaway in the electric vehicle (1) in advance, determine the suppression priority, and automatically determine the order of operation. Claim 16 A method for suppressing an electric vehicle fire according to claim 14, wherein in step (S80), the vision system (160) includes a license plate recognition function of the electric vehicle (1) to enable identification and history tracking of the vehicle on fire, and in step (S90), the control unit (170) determines the risk level in conjunction with a past vehicle database and automatically sets a suppression strategy. Claim 17 A method for suppressing electric vehicle fires according to claim 14, characterized in that, in the above step (S30), a remote control communication module (180) is used to link with a smart city integrated safety network, a fire department, and a vehicle control system, thereby receiving information immediately upon the occurrence of a fire and enabling automatic dispatch.

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