Apparatus for extinguishing fire by moving electric vehicles

Abstract

The present invention relates to a mobile fire suppression device for electric vehicles capable of extinguishing fires in multiple electric vehicles parked on a single floor by installing a single fire suppression parking platform and only two parking robots on a single floor of a parking lot. The device comprises a main body having a certain height upon which a burning electric vehicle steps, an installation groove formed around the upper perimeter of the main body for installing a tube-shaped fire suppression fence, a flow path formed inside the main body for supplying fire extinguishing water from a fire extinguishing water pipe equipped with an electronic shut-off valve to the installation groove, an inclined surface formed on the front of the main body, a tube-shaped expandable fire suppression fence that unfolds upward as fire extinguishing water is filled into the installation groove, a hydraulic drilling device installed in the center of the main body including a tube-shaped drilling spray drill connected to the flow path and a connecting flow path, which rotates upward upon the supply of fire extinguishing water to drill the lower part of the burning electric vehicle and spray fire extinguishing water into the battery pack from the inside, and an operation control unit that wirelessly operates and controls the electronic shut-off valve. Each is controlled by a wireless control unit, and when the fire suppression fence is not deployed upward with the electronic opening / closing valve closed, the two parking robots move to the front and rear of the lower part of the electric vehicle where the fire has occurred through the control of the operator of each wireless control unit, and then the wheel lifting bars installed on the front and rear of each side are rotated so that the outer sides are close to each other around the inner hinge part through the drive of a motor to lift the wheels of the electric vehicle where the fire has occurred, and then the wheels are rotated by the drive of a motor to move the electric vehicle where the fire has occurred to the upper part of the parking platform body, and then operate to detach from the lower part of the electric vehicle where the fire has occurred.

Description

Technology Field

[0001] The present invention relates to a mobile fire suppression device for electric vehicles, and more specifically, to a mobile fire suppression device for electric vehicles capable of extinguishing fires in multiple electric vehicles parked on a single floor by installing a single fire suppression parking bay and only two parking robots on a single floor of a parking lot. 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 internal combustion engines, the adoption of electric vehicles, which are eco-friendly energy vehicles, has been increasing recently.

[0003] Due to this trend, the global sentiment to phase out internal combustion engine vehicles will intensify as a result of global warming; conversely, the adoption of electric vehicles is steadily increasing every year, and their market share is expected to rise even further in the future.

[0004] Batteries are an indispensable and important component of electric vehicles, and as the number of electric vehicles increases, vehicle fires caused by batteries are occurring frequently.

[0005] If a fire occurs in an electric vehicle, even if the fire is initially extinguished with a fire extinguisher, a secondary fire may occur in the battery over time. Therefore, it is essential to stabilize the battery within 24 hours after the initial fire is extinguished.

[0006] Batteries used in electric vehicles are characterized by the high-density arrangement of high-capacity cells, as there are significant constraints on weight and size due to the unique spatial characteristics of the vehicle. Furthermore, because they are installed in a sealed form to minimize physical impact from the outside, it is difficult for fire extinguishing agents typically used in general fire incidents to penetrate, making fire suppression challenging.

[0007] Therefore, in the event of a fire in an electric vehicle, the only option is to suppress the flames visible to the outside using firefighting water. Due to the characteristics of thermal runaway fires in electric vehicles, extinguishing the fire is nearly impossible once it is fully activated and the vehicle is completely burned down.

[0008] Furthermore, in the event of a fire, if the diaphragm separating the positive and negative electrodes in the battery fails to function properly and the electrodes come into contact with each other, heat generation and flammable gases are produced due to a chain reaction. If this chain reaction continues, toxic gases, including carbon monoxide, and flammable gases are rapidly generated along with high temperatures, causing the battery to ignite and explode due to a spark. Additionally, if physical impact is applied to a cell causing an explosion, the explosive force transmits physical impact to adjacent cells, triggering a chain reaction of thermal runaway and subsequent explosions of adjacent cells.

[0009] Furthermore, lithium-ion batteries in electric vehicles have a problem where they are difficult to extinguish once they catch fire and easily reignite until they are completely burned. Since the large batteries built into medium-sized electric vehicles are capable of supplying two days' worth of power to a household, a fire in an electric vehicle equipped with such a large battery is extremely dangerous, as the temperature can rise uncontrollably.

[0010] In particular, since electric vehicle batteries are integrated and built into a sealed space inside the vehicle body, fire extinguishing agents or water cannot be sprayed precisely where needed and can only be supplied to flames that appear on the outside, resulting in the problem of having to continuously supply a very large amount of water for a long time. According to statistics, 28,000 gallons of water are required to completely extinguish a fire in one electric vehicle, which is similar to the amount typically used by a fire station in one month.

[0011] Furthermore, due to the high-voltage batteries located beneath electric vehicles, there is a risk of electric shock and explosion, making it difficult to extinguish fires using conventional suppression methods. Therefore, considering the growing electric vehicle industry, it is necessary to develop a device capable of effectively extinguishing fires in electric vehicle batteries.

[0012] Meanwhile, when a fire occurs while a vehicle is parked or charging its battery in low-ceilinged locations such as underground parking lots or ships carrying electric vehicles for export, a tow truck must enter the underground parking lot to quickly remove the burning electric vehicle. However, the ground clearance is typically very low, ranging from 1.5m to 1.7m, making it impossible for tow trucks to enter. Additionally, sprinklers installed inside the building are typically positioned near the ceiling, which results in extremely low fire suppression efficiency in the event of a fire involving an electric vehicle.

[0013] Due to these spatial constraints, there is a problem where fire spreads rapidly and becomes difficult to extinguish when it occurs during parking or battery charging in low-ground-height locations, such as underground parking lots or ships carrying electric vehicles for export. Prior art literature

[0014] Republic of Korea Patent Registration No. 2753762 The problem to be solved

[0015] Accordingly, the present invention has been devised to resolve the various problems of the prior art as described above.

[0016] The objective of the present invention is to provide a mobile fire suppression device for electric vehicles that enables the fire of multiple electric vehicles parked on a single floor to be extinguished in a compatible manner by installing only one parking space and two parking robots in a parking lot on a single floor, by moving the electric vehicle on fire to a single fire extinguishing parking space through two parking robots and extinguishing the fire of the electric vehicle on fire by the operation of a single fire extinguishing parking space.

[0017] In addition, another objective of the present invention is to provide a mobile fire suppression device for electric vehicles that can shorten the fire extinguishing time by perforating the lower part of the battery pack, which is the lower part of the electric vehicle, and actively spraying fire extinguishing water directly onto the battery pack. means of solving the problem

[0018] The "mobile fire suppression device for electric vehicles" of the present invention for achieving the above-mentioned purpose comprises a main body having a certain height upon which a burning electric vehicle steps, an installation groove formed around the upper circumference of the main body for installing a tube-shaped fire suppression fence, a flow path formed inside the main body for supplying fire extinguishing water from a fire extinguishing water pipe equipped with an electronic shut-off valve to the installation groove, an inclined surface formed on the front of the main body, a tube-shaped expandable fire suppression fence that unfolds upward as fire extinguishing water is filled is embedded and installed in the installation groove, a hydraulic drilling device installed in the center of the main body including a tube-shaped drilling spray drill connected to the flow path and a connecting flow path, which rotates upward upon the supply of fire extinguishing water to drill the lower part of the burning electric vehicle and spray fire extinguishing water into the battery pack from the inside, and a parking stand including an operation control unit that wirelessly operates and controls the electronic shut-off valve; Each is controlled by a wireless control unit, and when the fire suppression fence is not deployed upward with the electronic opening / closing valve closed, the two parking robots move to the front and rear of the lower part of the electric vehicle where the fire has occurred through the control of the operator of each wireless control unit, and then the wheel lifting bars installed on the front and rear of each side are rotated so that the outer sides are close to each other around the inner hinge part through the drive of a motor to lift the wheels of the electric vehicle where the fire has occurred, and then the wheels are rotated by the drive of a motor to move the electric vehicle where the fire has occurred to the upper part of the parking platform body, and then operate to detach from the lower part of the electric vehicle where the fire has occurred. Effects of the invention

[0019] The present invention, configured as described above, allows a fire in an electric vehicle to be moved to a single fire extinguishing parking space using two parking robots, thereby enabling the fire in the electric vehicle to be extinguished by the operation of a single fire extinguishing parking space. By installing only one fire extinguishing parking space and two parking robots in a single-story parking lot, the fires of multiple electric vehicles parked in a single-story parking lot can be extinguished in a compatible manner, thus eliminating the need to install multiple fire extinguishing parking spaces in a single-story parking lot.

[0020] In addition, the present invention has the effect of shortening the fire extinguishing time and simultaneously minimizing the use of fire extinguishing water by perforating the lower part of the battery pack, which is the lower part of the electric vehicle, and actively spraying fire extinguishing water directly onto the battery pack. Brief explanation of the drawing

[0021] FIG. 1 shows a parking rack constituting a fire suppression device according to the present invention. FIG. 1a is a perspective view, and FIG. 1b is a cross-sectional view along line AA of FIG. 1a, and Fig. 1c is a top view of Fig. 1b. FIG. 2 shows a parking robot constituting a fire suppression device according to the present invention, FIG. 2a is a left side view, and Figure 2b is a top view of Figure 2a. FIG. 3 illustrates the process of extinguishing a fire in an electric vehicle using a fire suppression device according to the present invention. Figure 3a shows the process of two parking robots moving a burning electric vehicle, and FIG. 3b shows the state in which two parking robots have moved a burning electric vehicle to the top of the parking rack, FIG. 3c shows the state in which two parking robots have been detached from the underside of the burning electric vehicle, and Figure 3d shows the process of extinguishing a fire by supplying firefighting water to the parking lot. Specific details for implementing the invention

[0022] Preferred embodiments of the present invention are described in more detail below with reference to the accompanying drawings. However, it should be understood that the present invention may be implemented in a number of different forms and is not limited to the described embodiments.

[0023] FIG. 1 is a drawing showing a parking rack constituting a fire suppression device according to the present invention, FIG. 2 is a drawing showing a parking robot constituting a fire suppression device according to the present invention, and FIG. 3 is a drawing showing the process of extinguishing a fire in a burning electric vehicle through a fire suppression device according to the present invention.

[0024] As illustrated in the drawing, the electric vehicle mobile fire suppression device according to the present invention (hereinafter referred to as the "fire suppression device") is capable of extinguishing fires in multiple electric vehicles parked on a single floor by installing a single fire suppression parking bay and only two parking robots on a single floor of a parking lot, and comprises one parking bay and two parking robots.

[0025] The above parking platform (1) allows a burning electric vehicle to stand on it, and extinguishes the fire by perforating the lower part of the battery pack section of the burning electric vehicle and directly spraying fire extinguishing water onto the battery pack section to submerge the lower part of the burning electric vehicle.

[0026] This parking stand (1) includes a rectangular main body (11) having a certain height on which a fire electric vehicle stands.

[0027] An installation groove (12) is formed around the upper circumference of the main body (11) to which a tube-shaped fire suppression fence (15), to be described later, is installed. Additionally, a flow path (13) is formed inside the main body (11) to supply fire extinguishing water from a fire extinguishing water pipe (14), in which an electronic opening / closing valve (141) is installed, to the installation groove (12).

[0028] A downwardly inclined surface (111) is formed at the front of the main body (11) so that a fire-resistant electric vehicle can be moved to the upper part of the main body (11) by the operation of two parking robots (2) to be described later.

[0029] A tube-shaped, expandable fire suppression fence (15) that extends upward as fire extinguishing water is injected through the above-mentioned water channel (13) is embedded in the above-mentioned installation groove (12). Furthermore, it is preferable that only the lower part of the fire suppression fence (15) be fixed to the above-mentioned installation groove (12) so that it can extend upward. In addition, it is preferable that the fire suppression fence (15) be composed of one of the following: fire-resistant carbon fiber, aramid fiber, or a fabric coated with a non-combustible coating material.

[0030] In the center of the main body (11), a hydraulic drilling device (17) is installed that includes a pipe-shaped drilling spray drill connected to the above-mentioned main body (13) and the connecting main body (16), which rotates upward by supplying fire extinguishing water to drill the lower part of the fire electric vehicle and spray fire extinguishing water into the battery pack inside.

[0031] The above hydraulic drilling device (17) includes a pipe-shaped drilling spray drill that rotates upward by a hydraulic motor that rotates by hydraulic pressure and sprays fire extinguishing water from the inside upward. Since such hydraulic drilling device (17) is known in various forms, a description of its configuration and operation will be omitted.

[0032] The above parking rack (1) includes an operation control unit (not shown) that wirelessly operates and controls the electronic opening and closing valve (141).

[0033] Additionally, the parking platform (1) is formed to protrude upward from the upper rear of the main body (11) and further includes an anti-detachment ridge (112) that prevents the electric vehicle from moving to the rear of the main body (11) and becoming detached during the process in which the electric vehicle is moved to the upper part of the main body (11) by the operation of the two parking robots (2) to be described later.

[0034] And, each of the two parking robots (2) constituting the present invention is operated and controlled by a wireless control unit (not shown).

[0035] The two parking robots (2) are operated such that, when the electronic opening / closing valve (141) is closed and the fire suppression fence (15) is not deployed upward, they move to the front and rear of the lower part of the electric vehicle where the fire has occurred through the operation control of the operator of each wireless control unit, and then the wheel lifting bars (21) installed on the front and rear of each side are rotated so that the outer sides are close to each other around the inner hinge part (211) through the drive of the motor to lift the wheels of the electric vehicle where the fire has occurred, and then each wheel (22) is rotated by the drive of the motor to move the electric vehicle where the fire has occurred to the upper part of the main body (11) of the parking platform (1), and then detach from the lower part of the electric vehicle where the fire has occurred.

[0036] Each parking robot (2) performing such operations has already been disclosed in various forms, such as in Korean Patent Publication No. 2019-0048193, and the specific configuration and operation of each parking robot (2) are omitted.

[0037] The fire extinguishing process of an electric vehicle is described below using the fire extinguishing device according to the present invention configured as described above.

[0038] As shown in FIGS. 1 to 3, first, one parking space and two parking robots (2) are installed in a parking lot on one floor.

[0039] Accordingly, when a fire occurs in one of the electric vehicles among several electric vehicles in a parking lot on one floor, the fire extinguishing operator operates the respective wireless control unit controlling the two parking robots (2) to move and position the two parking robots (2) to the front and rear of the electric vehicle at fire, and then rotates the wheel lifting bars (21) installed on the front and rear of both sides of each parking robot (2) by driving a motor so that the outer sides are close to each other around the inner hinge part to lift the wheels of the electric vehicle at fire, and then drives the wheels (22) of the two parking robots (2) to move the electric vehicle at fire to the upper part of the main body (11) of the parking lot (1), and then returns the wheel lifting bars (21) of the two parking robots (2) to their original positions, and then moves the two parking robots (2) away from the electric vehicle at fire.

[0040] Next, the fire operator controls the control unit constituting the parking lot (1) to open the electronic opening / closing valve (141) installed in the fire extinguishing water pipe.

[0041] Then, fire extinguishing water passes through the water passage (13) via the above-mentioned fire extinguishing water pipe and flows into the lower part of the installation groove (12), supplying fire extinguishing water to the inside of the fire extinguishing fence (15), causing the fire extinguishing fence (15) to extend upward and protrude, and the fire extinguishing fence (15) extended upward blocks the lower perimeter of the fire-resistant electric vehicle placed on the upper part of the main body (11).

[0042] Next, after the fire suppression fence (15) is deployed to protrude upward, the fire extinguishing water passes through the connecting channel (16) by the inflow pressure and flows into the hydraulic motor (171), which rotates the tubular drilling spray drill (172) upward to drill the lower part of the battery pack section of the electric vehicle at fire, and the fire extinguishing water is sprayed from inside the raised and rotated tubular drilling spray drill (172) to directly spray the fire extinguishing water onto the battery pack section, thereby shortening the fire extinguishing time of the battery pack section. Therefore, the present invention has the advantage of shortening the fire extinguishing time by drilling the lower part of the battery pack of the electric vehicle at fire and actively spraying fire extinguishing water directly onto the battery pack section, while simultaneously minimizing the use of fire extinguishing water.

[0043] And the fire extinguishing water sprayed from inside the above-mentioned drilling (172) extinguishes the battery part and fills the inside of the above-mentioned fire suppression fence (15), thereby flooding the battery pack part, which is the lower part of the electric vehicle, and further shortens the extinguishing time of the battery pack part.

[0044] Next, when the fire in the electric vehicle is extinguished through the above process, the fire extinguisher operates the control unit constituting the parking rack (1) to close the electronic opening / closing valve (141) installed in the fire extinguishing water pipe (14) and cuts off the supply of fire extinguishing water, thereby completing the extinguishing of the electric vehicle.

[0045] Accordingly, the present invention is a useful invention that eliminates the need to install multiple fire extinguishing parking spaces (1) in a parking lot on one floor by allowing a fire-extinguishing electric vehicle to be moved to a parking space (1) through two parking robots (2) and the fire of the electric vehicle to be extinguished by the operation of one parking space (1), thereby enabling the fire of multiple electric vehicles to be extinguished in a compatible manner by installing only two parking robots (2) in a parking lot on one floor.

[0046] Although preferred embodiments of the present invention have been described above, the present invention may use various variations, modifications, and equivalents. It is clear that the present invention can be applied in the same way by appropriately modifying the above embodiments. Therefore, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

[0047] Meanwhile, although specific embodiments have been described in the detailed description of the present invention, it will be obvious to those skilled in the art that various modifications are possible within the scope of the present invention. Explanation of the symbols

[0048] 1 : Parking rack 11 : Main body 12 : Installation Home 13 : Euro 14: Fire extinguishing water pipe 15 : Fire suppression fence 16 : Connecting Euro 17: Hydraulic drilling device 2 : Parking robot 21 : Wheel lifting bar 22 : Wheel

Claims

Claim 1 A parking stand comprising a main body having a certain height upon which a fire-fighting electric vehicle steps, an installation groove formed around the upper perimeter of the main body for installing a tube-shaped fire suppression fence, a flow path formed inside the main body for supplying fire extinguishing water from a fire extinguishing water pipe equipped with an electronic shut-off valve to the installation groove, an inclined surface formed on the front of the main body, a tube-shaped expandable fire suppression fence that unfolds upward as fire extinguishing water is filled into the installation groove, a hydraulic drilling device installed in the center of the main body including a tube-shaped drilling spray drill connected to the flow path and a connecting flow path, which rotates upward upon the supply of fire extinguishing water to drill the lower part of the fire-fighting electric vehicle and spray fire extinguishing water into the battery pack from the inside, and an operation control unit for wirelessly operating and controlling the electronic shut-off valve; An electric vehicle mobile fire suppression device characterized by comprising two parking robots, each of which is controlled by a wireless control unit, and which, when the fire suppression fence with the electronic opening / closing valve in a closed state is not deployed upward, moves to the front and rear of the lower part of the electric vehicle where a fire has occurred through the control of the operator of each wireless control unit, and then the wheel lifting bars installed on the front and rear of each side are rotated so that the outer parts are close to each other around the inner hinge part through the drive of a motor to lift the wheels of the electric vehicle where the fire has occurred, and then the wheels are rotated by the drive of a motor to move the electric vehicle where the fire has occurred to the upper part of the parking platform body, and then detach from the lower part of the electric vehicle where the fire has occurred. Claim 2 The electric vehicle mobile fire suppression device according to claim 1, characterized in that the parking stand further includes an anti-detachment projection protruding upward from the upper rear of the main body. Claim 3 A fire suppression device for an electric vehicle according to claim 1, wherein the fire suppression fan is composed of any one of carbon fiber, aramid fiber, or a fabric coated with a non-combustible coating material.

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