KR102786387B1 - Mobile Electric Vehicle Fighting System - Google Patents

Abstract

The present invention relates to a mobile electric vehicle firefighting system that automatically extinguishes a fire occurring in an electric vehicle battery by means of a mobile vehicle equipped with a perforation device and a water tank. More specifically, when a fire occurs in an electric vehicle, the mobile vehicle moves to the electric vehicle where the fire occurred, pushes the perforation device into the lower part of the electric vehicle, lifts it up, and closes the perforation device to the lower part of the electric vehicle. A hydraulically driven turbine and a drill attached to the turbine are provided inside the housing of the perforation device, and the inlet and outlet of the housing are each connected to a water tank by pipes, and a water pump is provided in the pipe entering the inlet, and a valve is provided in the pipe entering the outlet. When firefighting water stored in the water tank is injected into the housing at high pressure through the pump, the turbine rotates due to the water pressure, and the drill rotates to perforate the battery pack at the lower part of the electric vehicle. At this time, the water coming out of the outlet of the housing is recovered in the water tank and recycled. After the perforation is completed, the valve is locked so that firefighters are not returned to the water tank but are injected into the electric vehicle battery pack through the perforated hole, thereby enabling direct extinguishment of a fire occurring in an electric vehicle. In addition, the use of unnecessary firefighters can be prevented during this process, thereby enabling more efficient extinguishment of an electric vehicle.

Description

{Mobile Electric Vehicle Fighting System}

The present invention relates to a mobile electric vehicle fire-fighting system configured to extinguish a fire by directly spraying fire-fighting water on a battery pack where a fire has occurred at the scene without moving the electric vehicle or dispatching firefighters through a mobile vehicle equipped with a perforation device and a water tank when a fire in the electric vehicle occurs.

The content described below merely provides background information related to the present embodiment and does not constitute prior art.

Recently, the electric vehicle market using batteries is growing rapidly to reduce carbon emissions. Accordingly, the electric vehicle charger market is also growing rapidly, and the installation of electric vehicle chargers in building parking lots is also spreading. However, fires often occur during or after electric vehicle charging. Once a fire occurs in an electric vehicle, thermal runaway occurs and the fire does not go out until all the energy stored in the battery is consumed, so it is very dangerous because it can burn not only nearby vehicles but also buildings. Furthermore, in the case of underground parking lots, smoke can cause casualties, so if the fire is not extinguished in the early stage, it can lead to greater damage.

Although several methods for suppressing electric vehicle fires have been proposed to date, they all have one or more drawbacks, making effective fire suppression difficult. Some examples include:

The first method is to cover the electric vehicle with a suffocating fire blanket. The suffocating fire blanket method is very advantageous for initial fire suppression by blocking oxygen by covering the electric vehicle, and it is the most advantageous method for initial firefighting by minimizing smoke generation. However, if the suffocating fire blanket is left on for a long time, hydrogen gas is generated inside and there is a risk of explosion, so although it can last for about 20 to 30 minutes, it is not the ultimate extinguishing method because the fire will catch fire again after that. In addition, currently, a person approaches and covers the suffocating fire blanket, but there is a disadvantage that it takes too much time for a firefighter to arrive and cover the suffocating fire blanket.

The second method is to submerge the electric vehicle in a tank. This is known as the most reliable method because the firefighters cool the electric vehicle until all the energy stored in the electric vehicle battery is consumed. However, it is very difficult to lift and move the electric vehicle on fire and put it in a tank, and it takes a lot of time for the fire department to arrive and finish this task. In particular, if a fire breaks out in an underground parking lot, the electric vehicle on fire must be covered with a suffocating fire extinguisher, taken out to the ground, and placed in a tank, which is very unrealistic as it requires 20-30 people and a long time. In addition, it is dangerous because it involves direct human intervention.

First, both methods are not practical because it takes 20-30 minutes from the time an electric vehicle fire is reported to the time firefighters arrive, the electric vehicle may already have thermal runaway, the fire may spread to nearby parked vehicles, and a lot of smoke may be generated, which may lead to loss of life.

The third method is to hang a suffocating fire extinguisher and a water tank on top of an electric vehicle charging station to reduce the initial response time, connect a fire hose, and immediately lower them when a fire breaks out and fill the suffocating fire extinguisher and water tank with water. This is the fastest and most reliable way to put out the fire. However, electric vehicle fires do not only occur during charging, but also occur frequently during storage after charging, so it is too expensive to install on all runner surfaces, and it is difficult to secure installation space because the parking lot ceiling is generally low.

Fourth, research on using robots for unmanned firefighting has been active recently. Korean Patent No. 10-2579070 proposes a method of using an unmanned firefighting vehicle equipped with a foldable suffocating fire extinguishing blanket to cover the suffocating fire extinguishing blanket and then lift and move an electric vehicle to a tank to completely extinguish the fire. However, in this case, there are many difficulties in having the unmanned vehicle remove and transport an electric vehicle on fire from the parking lot, and there is a disadvantage in that a separate tank must be installed in the underground parking lot. In addition, there is a problem that it may take time to fill the tank with water and place the electric vehicle in the tank.

Fifth, in order to overcome the time, space, and cost limitations of electric vehicle extinguishing operations using the above-mentioned water tank, there is a method of directly spraying firefighting water under the electric vehicle to cool the heat of the battery pack. However, this method requires a person to directly approach the electric vehicle where a fire has broken out, insert the spraying device under the electric vehicle, and spray the firefighting water, which consumes too much firefighting water and is very dangerous because a person must also directly approach, and it takes 20-30 minutes for firefighters to arrive, which takes a lot of time for the initial response and makes the initial extinguishment difficult.

Sixth, another method was proposed to directly inject fire water into the battery pack by drilling a hole in the bottom of the electric vehicle with a drilling device. Since the fire water is directly injected into the battery pack, it can directly extinguish the source of the fire occurring in the battery, and actively suppress the temperature rise of the battery when extinguishing the fire, so it can be said to be the most efficient fire fighting method. However, it has the disadvantage that it takes 20-30 minutes for firefighters to arrive, so there is a disadvantage that thermal runaway can occur during that time, and the fire can spread. In addition, there is a disadvantage that a fire hose must be connected because high-pressure fire water must be sent to operate the drilling device, and a lot of fire water can flow out during the drilling, turning the parking lot into a sea of water. In addition, there is a disadvantage that it cannot prevent smoke generation. In order to quickly respond before firefighters arrive, a method was proposed to lay rails across several parking lots and move the drilling device to do fire fighting, but it is difficult to cover many parking lots because the fire hose must be dragged around.

The preferred methods for extinguishing electric vehicle fires are as follows:

First, electric vehicle fires require quick action. Technology is needed to detect fires before gas emissions and thermal runaway occur. Therefore, surveillance cameras, thermal imaging cameras, or smoke detectors should be used throughout the parking lot to detect signs of fire early.

Second, it basically takes 20-30 minutes for firefighters to respond, so it is impossible to prevent thermal runaway. It is also very unrealistic to take the electric vehicle outside. It should be taken care of immediately in the underground parking lot where it is parked. To this end, fire suppression should preferably be done automatically. If it is not possible to do so automatically, it should be done remotely without the dispatch of firefighters. Preferably, fire suppression equipment should be dispatched to the burning electric vehicle within 5 minutes of the fire and start to suppress the fire. The deployment of people to the scene should be limited to unavoidable cases and minimized.

Third, we must prevent casualties from smoke emissions. Fire causes property damage, but smoke causes casualties, so measures against smoke are essential.

Fourth, because fires can occur not only during charging but also while parking after charging, the entire parking lot must be covered, not just the parking space where the charger is installed.

Fifth, we should try to avoid causing secondary damage to the parking lot as much as possible. This is because fire water can overflow and turn the parking lot into a sea of water.

Sixth, it should be possible to install it not only in new building parking lots but also in existing building parking lots.

Seventh, it must be possible to implement it at low cost.

Previously invented fire suppression methods mostly do not satisfy the above conditions. The present invention was devised to satisfy all of the above requirements, and the purpose is to enable more efficient and safe fire extinguishment by quickly dispatching when a fire occurs and simultaneously covering the fire with a suffocating fire extinguishing cloth to prevent smoke as much as possible.

To achieve the above purpose,

The present invention provides a vehicle equipped with a hydraulically driven drilling device and a water tank, and when a fire breaks out in the electric vehicle, the vehicle automatically runs to push the drilling device into the bottom of the electric vehicle, drills a hole in a battery pack arranged under the electric vehicle, and injects firefighting water stored in the water tank into the battery pack so as to directly extinguish the source of the fire, while the firefighting water used during drilling is recovered into the water tank and recycled, thereby reducing waste of firefighting water, and thus enabling the fire to be extinguished with a small water tank capacity. In addition, a suffocating fire extinguishing foam is covered over the electric vehicle to suppress initial smoke generation and facilitate fire extinguishment.

More specifically, the present invention comprises a bogie that is moved and positioned under an electric vehicle and has its height adjusted; a drill module that is installed on the top of the bogie and is in close contact with a battery pack arranged under the electric vehicle, perforates a hole, and sprays fire extinguishing water into the inside of the electric vehicle battery pack through the perforated hole;

The above drill module includes a housing into which fire water is injected, a turbine provided in the housing and generating rotational force by the injected fire water, a cylindrical hole cutter connected to the turbine and drilling a hole in the lower part of the electric vehicle through the rotational force of the turbine, and an elastic body arranged at the lower part of the hole cutter and applying an upward pressure to the hole cutter, and at least one fire water discharge port is provided at the end or side of the hole cutter so that the fire water can enter the battery pack after drilling.

An inlet for firefighters to enter and an outlet for the firefighters to return through the turbine are provided on the side of the housing.

A drilling device including the above-mentioned cart and drill module; a moving means on which the drilling device is mounted; a water tank provided on the moving means; a first pipe connecting the water tank and the inlet; a water pump inserted in the middle of the first pipe; a second pipe connecting the discharge port and the water tank; a valve inserted in the middle of the second pipe; and a driving means for pushing the drilling device to a set position at the bottom of the electric vehicle.

In the event of a fire in an electric vehicle, the above-mentioned means of transportation moves to the electric vehicle where the fire occurred, pushes the perforation device into the bottom of the electric vehicle where the fire occurred, lifts the bogie, and places the top plate of the bogie against the bottom of the electric vehicle.

By operating the water pump, the fire water stored in the water tank is injected into the drill module through the first pipe to drive the drill module, and while the drill module is drilling a hole in the battery pack, the valve of the second pipe is opened so that the fire water injected into the drill module is recovered into the water tank and reused.

After the drill module has drilled the hole, the valve of the second pipe is locked to induce the fire water to be injected into the electric vehicle battery pack through the hole.

The above drill module is configured to surround the hole cutter on the outside of the hole cutter and includes a water barrier that prevents fire water from being sprayed out through the fire water discharge port of the hole cutter, thereby minimizing the loss of the fire water by preventing fire water from being sprayed out through the space between the upper surface of the bogie and the floor plate of the electric vehicle through the water barrier.

The above-mentioned means of transportation further includes a suffocating fire extinguishing cloth that unfolds along the front-rear direction of the electric vehicle, wherein the suffocating fire extinguishing cloth is fixed to a folding frame composed of two “ㄷ”-shaped frames, and the two “ㄷ”-shaped frames are attached facing each other but have a joint at the upper part such that one side of the “ㄷ”-shaped frame is fixed to the means of transportation and the other side is structured to be folded and unfolded by rotation of the joint, and when the folding frame is normally folded, the suffocating fire extinguishing cloth is also stored in a folded state, and when the folding frame is unfolded over the vehicle, the suffocating fire extinguishing cloth is implemented to cover the electric vehicle in which a fire has broken out.

The above folding frame needs to be at least 5 m long when unfolded because the length of the electric vehicle may be longer than 5 m, and it is longer than 2.5 m even when folded once, causing a problem in that it protrudes too much from the means of transportation. To improve this, the ‘ㄷ’ shaped frame fixed to the means of transportation is designed to have a variable length, and the ‘ㄷ’ shaped frame folded through the joint is designed to be shorter than 2 m in length to reduce the length that protrudes when folded.

In the case of the present invention

First, there is no need for a person to directly approach the electric vehicle on fire. By installing a perforation prevention device on the vehicle, if a fire occurs in the electric vehicle, the person can immediately move to the electric vehicle on fire and inject firefighting water by drilling a hole in the bottom of the electric vehicle on fire, which enables safe and quick fire fighting.

Second, before using a perforation device to extinguish the fire, the vehicle on fire is covered with a suffocating fire extinguishing blanket to block oxygen, thereby minimizing smoke generation and conducting initial firefighting to prevent the fire from spreading to adjacent vehicles and causing casualties.

Third, the means of transportation perforates the battery pack by the firefighter's hydraulic pressure, and while the hole is being perforated, the firefighter's hydraulic water injected into the perforation device is recovered into the water tank and reused, thereby resolving the disadvantage of the conventional hydraulic perforation method that uses a lot of firefighter's hydraulic water, and has the advantage of reducing the size of the water tank.

Fourth, since the vehicle is equipped with a water tank and can be accessed anywhere in the parking lot, it is very economical as one fire extinguishing system can cover a large parking lot.

Due to these advantages, the present invention has the effect of enabling faster and more efficient extinguishing of a fire in an electric vehicle.

Figure 1 is a configuration diagram of a moving vehicle equipped with a perforation device and a water tank according to the present invention.
Figures 2 and 3 are drawings for explaining the configuration and operation of a perforation device according to the present invention.
FIG. 4 is a drawing exemplifying the structure of a driving means for front movement of a perforation device according to the present invention.
FIG. 5 is a drawing exemplifying the structure of a driving means for lateral movement of a perforation device according to the present invention.
FIG. 6 is a drawing illustrating a process in which a moving means according to the present invention moves a perforating device to an electric vehicle where a fire has occurred.
FIG. 7 is a drawing exemplifying the process of introducing a perforation device into the bottom of an electric vehicle when a perforation device is mounted on the front part of a means of transportation according to the present invention.
FIG. 8 is a drawing exemplifying a process of introducing a perforation device into the bottom of an electric vehicle when a perforation device is mounted on a side portion of a means of transportation according to the present invention.
Figure 9 is a drawing illustrating a fire extinguishing method of a perforation device according to the present invention.
FIGS. 10 and 11 are drawings illustrating the configuration and operation of an auxiliary means for assisting the entry of a perforation device into the lower part of an electric vehicle according to the present invention.
Figures 12 and 13 are exemplary drawings for explaining the configuration and operation of a folding frame equipped with a suffocating fire extinguisher according to the present invention.
Figure 14 is a drawing illustrating an unfolded form of a suffocating fire extinguisher according to the present invention.
FIG. 15 is a drawing exemplifying a method for preventing fire from spreading to adjacent vehicles in an electric vehicle in which a fire has occurred according to the present invention.
Figure 16 is a drawing for explaining the height adjustment function of the moving means according to the present invention.
Figure 17 is a drawing for explaining a method for remotely operating a moving means according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The following detailed description is merely exemplary and merely illustrates preferred embodiments of the present invention.

The mobile electric vehicle fire-fighting system according to the present invention is configured to spray fire-fighting water directly on a battery pack where a fire has occurred at the scene without moving the electric vehicle or dispatching firefighters through a mobile vehicle equipped with a perforation device and a water tank, thereby suggesting a new method for more quickly and efficiently extinguishing a fire in an electric vehicle where a fire has occurred.

FIG. 1 is a configuration diagram of a means of transportation equipped with a perforation device and a water tank according to the present invention. Referring to FIG. 1, the means of transportation according to the present invention includes a body (110), a perforation device (120), a water tank (130), a pipe (142, 144) connecting the water tank (130) and the perforation device (120), a water pump (140) and a valve (not shown), a motor (150), a driving means (160) for pushing the perforation device (120) to a predetermined position at the bottom of the electric vehicle, a sensing means including at least one of a real-world camera (170) and a thermal imaging camera (not shown), a lidar (not shown), a radar (not shown), and an ultrasonic sensor (172) provided on the front, rear, or side of the means of transportation, four driving wheels (180), and a means of transportation controller (not shown) for controlling the entire means of transportation and wirelessly communicating with the outside.

Meanwhile, although not clearly shown in FIG. 1, the means of transportation (100) may be provided with a steering means (not shown) connected to the driving wheels (180), and may be implemented so that the direction of movement of the means of transportation (100) can be adjusted using the steering means. It is preferable that the driving wheels (180) be at least a certain size to be able to go up and down a ramp for moving between floors. The steering means may be installed only on the front or rear wheels, or may be installed on all four wheels to drastically reduce the turning radius.

The means of transportation (100) according to the present invention is characterized in that the means of transportation includes a perforation device (120) and a water tank (130). That is, the present invention is configured to extinguish a fire by directly spraying firefighting water into the inside of a battery pack using the perforation device (120), but instead of the conventional method of having a person approach an electric vehicle where a fire has broken out and insert the perforation device (120) into the bottom of the electric vehicle, an unmanned transport vehicle is utilized to push the perforation device (120) under the electric vehicle, a hole is made in a battery pack placed under the electric vehicle, and firefighting water stored in a water tank is injected into the battery pack to directly extinguish the source of the fire.

To this end, in the present invention, the moving means (100) may be provided with a water tank (130) for storing fire water in the body (110) as illustrated in FIG. 1, and through this, fire water is directly supplied to the perforation device (120) without having to bring in a fire hose, so there is an advantage in that fire fighting operations can be performed in a short period of time. It is preferable that the size of the water tank (130) be such that it can store enough fire water to perform fire fighting operations for a certain period of time. Here, when the amount of water in the water tank (130) is insufficient, an inlet (132) may be provided to bring in and connect a fire hose to replenish fire water in the water tank (130). In addition, the water tank (130) may be implemented in a form that is separated and connected from the moving means (100).

In another embodiment, the water tank may be provided externally, and in this case, during the fire suppression process, it may be implemented to supply firefighting water to the perforation device (120) by being connected to a pipe provided in the moving means (100).

In addition, the means of transportation (100) is configured to include at least one perforation device (120), and the perforation device (120) can be implemented to be inserted into the lower part of the electric vehicle by the driving means (160). The perforation device (120) can be configured to perforate a hole penetrating a battery pack arranged in the lower part of the electric vehicle and inject fire extinguishing water into the battery pack through the perforated hole. Hereinafter, the present invention will be described in more detail with reference to the drawings.

Figure 2 shows the configuration of a perforation device (120). The perforation device (120) may be configured to include a cart (200) that is moved and positioned under an electric vehicle and has its height adjusted, a drill module (210) that is installed on the top of the cart and is in close contact with a battery pack placed under an electric vehicle to perforate a hole, and spray fire extinguishing water into the inside of the electric vehicle battery pack through the perforated hole.

The bogie (200) includes a height adjustment means (202) to lift the drill module (210) and to attach it to the lower part of the electric vehicle. In addition, the bogie (200) includes a plurality of wheels (204) and can roll under the electric vehicle. The wheels (204) stand and roll by springs, and when a certain amount of load is applied to the bogie (200), the wheels (204) spread out to the outside of the bogie so that the bottom plate of the bogie can be attached to the floor of the parking lot.

In the present invention, the height adjustment device (202) of the bogie (200) includes an X-lift (260) composed of two ‘X’ shaped structures between the top plate and the bottom plate of the bogie, through which the height of the drill module (210) itself can be adjusted. More specifically, the X-lift (260) may be composed of four structures on the upper, lower, left, and right sides of one side of the X-lift (260) as fixed bearings (262), and four structures on the upper, lower, left, and right sides of the opposite side as sliding bearings (264).

In the present invention, the X-lift (260) includes a bar (270) that connects structures connected to the lower two sliding bearings (264) to each other, and the X-lift (260) can be driven by pushing or pulling the bar (270). For example, when the bar (270) is pushed, the structure of the X-lift connected to the sliding bearings (264) slides, thereby increasing the height of the carriage, and when the bar is pulled, the height of the carriage is decreased.

Here, in the case of the present invention, it is preferable to implement the movement of the bar by a hydraulic cylinder. More specifically, a first hydraulic cylinder (272) is included between the middle part of the bar and the floor plate, so that the bar can be pushed by hydraulic pressure to lift the bogie until it is in close contact with the lower part of the electric vehicle. For example, for this purpose, a separate pipe may be provided between the first hydraulic cylinder (272) and the water tank, and the first hydraulic cylinder (272) can be driven by fire water supplied from the water tank. A motor and a rack-and-pinion gear may be used to drive the X-lift (260), but it is necessary to provide good cooling so that it can withstand a high-temperature fire environment.

The X-lift (260) may be equipped with a fixing means that lifts the drill module (210) and fixes it so that the height of the X-lift is maintained after it is pressed against the bottom of the battery pack. For example, the fixing means may include a linear gear (280) and a wedge (282), and after the X-lift is lifted by the first hydraulic cylinder (272), the wedge (282) may be fixed so that the height of the X-lift (260) is maintained even without applying pressure to the first hydraulic cylinder (272). In the case where the fixing means is equipped on the bottom surface of the carriage (200), since the drill module (210) and the bottom of the carriage (210) cannot be pressed against each other, there is a limit to reducing the height of the drilling device even if the X-lift (260) is completely lowered.

In order to solve this problem in the present invention, a fixing means can be provided on the outer side of the bogie (200). With this structure, when the X-lift (260) is completely lowered, the height of the bogie (200) can be reduced to the maximum, which has the advantage of making it easier to push it under the vehicle.

The drill module (210) may be configured to include a housing (250) into which fire water is injected, a turbine (not shown) provided within the housing (250) that generates rotational force by the injected fire water, a cylindrical hole cutter (220) that is connected to the turbine and drills a hole in the lower part of the electric vehicle through the rotational force of the turbine, and an elastic body provided at the lower part of the cylindrical hole cutter (220) that applies an upward pressure to the hole cutter (220). An inlet (230) for entering fire water is provided on the side of the housing (250), and a pipe and a water pump connected to the inlet (230) are provided to push water injected from the outside at a high pressure into the inlet (230). The turbine inside rotates due to the water pressure of the fire water injected through the inlet (230). The rotational force of the turbine is directly transmitted to the hole cutter (220), and as a result, the hole cutter (220) drills a hole in the lower part of the electric vehicle battery pack due to the water pressure.

Meanwhile, before the hole is drilled by the hole cutter (220), the fire water injected through the injection port (230) must be discharged outside the housing. To this end, there is a discharge port (240) on the side of the housing, and in the case of the present invention, a second pipe (144) connecting the discharge port (240) and the water tank (130) and a valve (not shown) inserted in the middle of the second pipe (144) may be provided. At this time, if the valve is opened, the discharged water is returned to the water tank.

The hole cutter (220) has a hollow cylindrical shape inside, and a fire water discharge port (222) is provided at the end and the side to discharge the fire water injected through the injection port (230) into the electric vehicle battery pack through the perforated hole. For example, when the hole cutter (220) completes the perforation and enters the battery pack by a certain length, the fire water is sprayed through a plurality of fire water discharge ports (222) formed at the center and the side of the hole cutter (220). In the case of the present invention, when the perforation is completed, the valve (not shown) is locked to block the discharge port (240) to prevent the fire water from escaping, and the fire water is strongly sprayed into the battery pack by the pressure of the fire water.

Meanwhile, the conventional drilling device is structured so that the fire water injected into the housing of the drilling device (120) passes through the turbine and returns to the outside while drilling a hole, and is then discarded. Accordingly, since a considerable amount of fire water is required, the fire water stored in the water tank cannot be used, and a fire hose must be brought in to drill. In addition, there is a major disadvantage in that the area around the parking lot can turn into a sea of water due to the discarded fire water.

In the present invention, the moving means drives the drilling device (120) by the water pressure of the firefighter to drill a battery pack, and while drilling the hole, the firefighter water injected into the drilling device (120) is recovered into the water tank (130) and reused, thereby minimizing the amount of firefighter water used, and as a result, it has the advantage of being able to carry a small firefighter water tank and perform drilling work and extinguish electric vehicle fires. In addition, in order to block the water flowing out of the turbine after the drilling is completed, a complex mechanical means is used, but the present invention has the advantage of reducing the cost and increasing the reliability by using a simple valve.

To this end, in the case of the present invention, the drilling device (120) is provided with an inlet (230) through which fire water enters the side of the housing (250) of the drill module (210) and an outlet (240) through which fire water passes through the turbine and returns. At this time, the turbine is formed in a structure in which the blades arranged in the housing are only on the outer side and not in the center, so that before the drilling is completed, most of the fire water entering the inlet (230) rotates the turbine and then returns through the outlet (240), and after the drilling is completed, the fire water exiting the outlet (240) is blocked, so that most of the fire water entering the inlet enters the center of the turbine and enters the battery pack through the fire water discharge outlet (222) of the hole cutter (220).

In the present invention, the water pump (140) is driven at a constant water pressure, and the second pipe (144) includes a water pressure sensor or a flow rate sensor, so that when the hole cutter (220) completes drilling and the firefighter starts to enter the battery pack, the water pressure of the second pipe (144) is detected to drop or the flow rate is reduced, and thus it is determined that the drilling is complete. Thereafter, the moving means can lock the valve so that the firefighter does not turn the turbine any more and all of the firefighter enters the battery pack.

The water pump (140) controls the water pressure differently before the valve is locked and after the fire water starts to flow into the battery pack after the valve is locked, so that an appropriate amount of fire water can be injected before and after the perforation is completed.

In addition, in the case of a conventional drilling device, as shown in (a) of FIG. 3, a lot of fire water leaks between the lower plate (300) of the electric vehicle and the drill module (210) through the fire water discharge port (222) provided in the hole cutter (220) while the hole cutter (220) is drilling or while the drilling is completed and fire water is injected into the battery pack. In fact, a conventional drilling device requires about 30 tons of fire water to extinguish a fire by drilling and injecting fire water. The fire water required to extinguish a fire is less than 1%, and most of it is wasted on the parking lot floor.

In order to solve these problems, the perforation device (120) according to the present invention is configured in a form that surrounds the hole cutter (220) on the outside of the hole cutter (220), and can be implemented by including a water barrier (290) that prevents fire water from being sprayed out through the fire water discharge port (222) of the hole cutter (220).

More specifically, the drilling device (120) of the present invention is implemented to lift a bogie (200) and press it against the lower part of an electric vehicle, drive the drill module (210) by injecting fire water into the inside of the drill module (210), and prevent fire water coming out of the fire water discharge port (222) of the hole cutter (220) through the water barrier (290) from being sprayed out through the space between the upper surface of the bogie (200) and the floor plate (300) of the electric vehicle, thereby minimizing the loss of fire water.

Referring to (b) of FIG. 3, in the case of the perforation device (120) equipped with a water barrier according to the present invention, it can be confirmed that the fire water coming out of the fire water discharge port (222) of the hole cutter (220) is prevented from being sprayed out to the outside by blocking the space between the upper surface of the bogie and the floor plate of the electric vehicle through the water barrier (290).

Meanwhile, in the present embodiment, the drilling device (120) raises the drill module until it is in close contact with the lower part of the electric vehicle. At this time, the drill module (120) is provided with at least a plurality of sharp awls (212) that are protruded and formed on the upper part of the drill module (120), and the sharp awls (212) can be implemented so that they strike the lower part of the vehicle to fix the drill module (120) to the lower part of the vehicle. Due to this point, the water barrier (290) is preferably implemented so that an appropriate depth at which the awl (212) enters the lower part of the vehicle is determined in advance, and the water barrier (290) is configured with a height that is the total height of the awl (212) minus the length that enters the lower part of the vehicle, so that when drilling a hole, the water barrier (290) is in close contact with the lower part of the vehicle as much as possible to prevent external leakage of firefighters. The awl (212) can be configured as a sharp awl that enters the vehicle floorboard at the end of the cylinder, and the height of the water barrier (290) can be configured to be the same as the height of the cylinder of the awl, so that when the bogie (200) is lifted, the sharp part of the awl (212) enters the vehicle floorboard (300), and when the cylinder touches the vehicle floorboard (300), the water barrier (290) also touches the vehicle floorboard (300) and is configured to be in close contact with it.

Here, the water barrier (290) can be implemented so that the water barrier is in maximum contact with the lower part of the vehicle by having an elastic, heat-resistant cushion part (not shown) on the upper side.

Likewise, the perforation device (120) according to the present invention can be implemented as a mobile fire extinguishing system by being mounted on a mobile vehicle equipped with a water tank because of its advantage of minimizing the outflow of fire water. Since a conventional perforation device requires a large amount of fire water, such as about 30 tons, it is necessary to bring in a fire hose to operate the perforation device.

In the present invention, the perforation device (120) is preferably mounted on the lower part or side of the body of the means of transportation (100) and may be implemented so that when a fire occurs, it can be moved outward from the body and inserted into the lower part of the electric vehicle. More specifically, the perforation device (120) is normally placed in a raised state on the lower part or side of the body of the means of transportation and when a fire occurs, it is lowered to the parking lot floor and then pushed into the lower part of the electric vehicle where the fire occurred, so that it can be implemented so as to be placed in the lower battery pack of the electric vehicle.

To this end, referring to FIG. 4, the moving means (100) may be configured to include a fixed bracket (not shown) for mounting a perforation means (120) and a horizontally configured X-shaped foldable variable arm (160) as a driving means for pushing the perforation device (120) toward the bottom of the vehicle. Accordingly, in the case of the present invention, when the moving means stands at the location of an electric vehicle where a fire has broken out, the fixed bracket is released to lower the perforation device (120) to the parking lot floor, and the foldable variable arm (160) is unfolded to push the perforation device (120) to a specific location under the electric vehicle.

In more detail, the X-shaped foldable variable arm (160) is arranged at the bottom of the vehicle, and one side of the X-shaped foldable variable arm (160) is fixed to the inside of the bottom of the vehicle, and the other side is fixed to the perforation device (120). Normally, the foldable variable arm (160) is folded and the perforation device (120) is fixed to the fixed bracket provided at the bottom of the vehicle. In order to unfold the perforation device (120) under the electric vehicle where a fire has occurred, the fixed bracket is released, the perforation device (120) is lowered to the parking lot floor, and the foldable variable arm (160) is unfolded so that the perforation device (120) can be pushed into the bottom of the vehicle. At this time, since one side of the foldable variable arm (160) is fixed to the inside of the bottom of the vehicle, the X-shaped foldable variable arm can operate in an inclined manner. According to the structure described above, the X-shaped foldable variable arm (160) can be configured so that the center of the foldable variable arm is lowered by gravity when the foldable variable arm mechanism is configured to be thin and wide so that the foldable variable arm does not touch the front part of the vehicle when it goes under the vehicle. In addition, when the X-shaped foldable variable arm is fixed to the means of transportation, the height of the fixing part can be adjusted so that when the foldable variable arm is expanded under the vehicle, the height of the fixing part can be lowered so that it does not touch the front part of the vehicle.

In the present invention, the foldable variable arm (160) may preferably be driven by a motor drive. For example, referring to (d) of FIG. 4, the foldable variable arm (160) may be driven by opening or closing both ends of an X-structure fixed to a moving means, and may be implemented by including a linear driving unit in the form of a bolt-nut. In more detail, the bolt (306) is configured such that both ends are fixed with bearings and a gear (304) is formed on the bolt (306), and the motor-reducer-gear assembly (302, 304) is configured to rotate the bolt (306) by engaging the bolt gear, but the bolt (306) has threads on both sides opposite each other with the middle as the boundary, and a corresponding nut (308, 310) is fitted thereto so that when the bolt (306) is turned in one direction, the nuts (308, 310) on both sides move toward or away from each other, and the two ends of the X-shaped foldable variable arm are respectively connected to the two nuts (308, 310) so that the two ends perform a linear movement simultaneously, thereby enabling the foldable variable arm to be driven.

Meanwhile, if the perforation device (120) is mounted on the front of the vehicle, the vehicle must stop in front of the electric vehicle on fire, use the steering device to turn vertically, and then insert the perforation device (120) under the vehicle. However, this method has the disadvantage that it may be difficult to turn the vehicle vertically accurately, and the cost of the vehicle may increase if four-axis steering is used.

To solve this problem, in another embodiment of the present invention, the perforation device (120) may be fixed in the lateral direction of the moving means (100). FIG. 5 is a drawing exemplifying the structure of the driving means when the perforation device (120) is mounted on the lateral direction of the moving means (100). In this case, similarly, the moving means (100) may be configured to include a fixed bracket (not shown) for fixing the perforation device (120) and an X-shaped foldable variable arm (160) for pushing the perforation device (120), and the X-shaped foldable variable arm (160) may be configured to push the perforation device (120) toward the lateral side of the moving means. In other words, the moving means may not stand in front of the electric vehicle on fire, but may simply proceed and then stop, release the fixed bracket, and then the X-shaped foldable variable arm (160) may push the perforation device toward the lower part of the electric vehicle from the lateral direction of the moving means to push it to a specific position under the electric vehicle. In this case, the means of transportation only needs to stand exactly in front of the electric vehicle where the fire has broken out, so it has the advantage of being very easy to control the position and angle at which the perforation device (120) is pushed in.

Hereinafter, in explaining various devices applied in the process of extinguishing an electric vehicle fire by a means of transportation (100) according to the present invention, the case where the perforation device (120) is mounted on the front or side of the means of transportation (100) will be described interchangeably. For example, even if not clearly shown in the drawing, each component can be installed at an appropriate location on the front or side depending on the mounting location of the perforation device (120).

Meanwhile, the side attachment method of such fire suppression means can be equally applied not only to the perforation device (120) but also to various fire suppression-related structures including the vehicle lift and asphyxiating fire extinguisher described later. However, this is only one example, and the structures may be attached to the front of the vehicle depending on the situation.

Hereinafter, with reference to FIGS. 6 to 8, a process in which a means of transportation (100) according to the present invention moves to an electric vehicle in which a fire has occurred and a perforation device (120) is introduced into the lower part of the vehicle will be described in more detail.

Referring to Fig. 6, the moving means (100) can be stored in a parking lot as if it were parked in a specific parking space with the water tank (130) filled with fire water in normal times. At this time, the perforation device (120) is stored in a state of being lifted up to the lower or side of the body of the moving means (100).

In the event of a fire in a specific electric vehicle parked in a parking lot, the vehicle (100) moves to the parking location of the electric vehicle in which the fire occurred. In the case of the present invention, the vehicle receives a front image from sensors such as a camera, a thermal imaging camera, a radar, a lidar, an ultrasonic wave, etc., which are installed in the vehicle, and drives along the parking lot passageway. The vehicle may be driven autonomously or remotely controlled in which a person remotely views the screen and operates it. In addition, the vehicle may be implemented so that the driver follows the vehicle and operates the device by operating the control terminal.

In the case of autonomous driving, if an obstacle appears in front, it stops and waits for a certain period of time until the obstacle is removed, and if it is not removed, it drives around the obstacle. In particular, since the vehicle (100) may collide with a person while driving, it must be able to detect the obstacle and stop, so there may be cases where it cannot drive quickly. To solve this problem, the vehicle may include a warning light (190) and a speaker (not shown), turn on the warning light (190), sound a siren, and announce that a fire has occurred and tell people to evade the driving path. In this way, the vehicle can increase its speed. In addition, in order to assist autonomous driving, a vehicle driving guideline (320) and a vehicle stop guideline (321) are included on the floor of the parking lot, so that the vehicle (100) follows the driving guideline (320) when driving, and when the vehicle (100) approaches the location where it is to stop, it moves along the vehicle stop guideline (321) and stops, so that it can easily stop in front of an electric vehicle where a fire has occurred.

The means of transportation (100) can also be controlled remotely by looking at the monitor. At this time, information from cameras, lidars, radars, etc. can be received through wireless communication between the means of transportation (100) and the remote controller (920), and the means of transportation can be controlled remotely using a joystick. In addition, a control terminal can be attached to the means of transportation (100) and a person can control the means of transportation while following it.

Meanwhile, Fig. 6 shows a process in which a drilling device (120) is mounted on the side of a vehicle, and the vehicle does not stand facing the front of an electric vehicle on fire, but simply moves forward and stops, lowers the cart (200) to the ground, and moves the cart (200) further into the vehicle so that the drill module (210) is accurately placed on the lower battery pack of the electric vehicle.

Figures 7 and 8 show specific operations for introducing the perforation device (120) into the bottom of an electric vehicle when the perforation device (120) is mounted on the front or side of the vehicle, respectively.

When the perforation device (120) is placed on the lower battery pack of the electric vehicle, the moving vehicle (100) extinguishes the fire by injecting firefighting water stored in the water tank (130) equipped on the moving vehicle into the perforation device (120).

Referring to FIG. 9, it can be seen that the perforation device (120) of the present invention perforates a hole in a battery pack using fire water provided from a water tank (130), and then injects fire water into the battery pack through the perforated hole to extinguish a fire.

Here, the moving means (100) can use the X-lift (260) equipped on the carriage (200) of the drilling device (120) to attach the drill module (210) to the lower part of the electric vehicle battery pack before drilling the hole through the drilling device (120). A detailed description of this will be omitted as it has been described above in FIG. 2.

Meanwhile, if a certain amount of time passes while the electric vehicle is on fire, damage to the vehicle, such as a flat tire, may occur. In this case, the electric vehicle body may sink, and a situation may arise where there is not enough space for the perforation device (120) to enter the lower part of the electric vehicle.

For this reason, in the case of the present invention, the means of transportation (100) may be configured to include a pair of foldable variable arms (400) having an X shape at the lower part of the body, and a lift structure (410) at the ends of the foldable variable arms (400). When there is not enough space for the perforation device (120) to enter the lower part of the electric vehicle due to a reason such as a flat tire, the pair of foldable variable arms (400) mounted at the lower part of the means of transportation may be unfolded to push the lift structure (410) into the lower part of the electric vehicle, and then the lift structure may be driven to raise the electric vehicle by a certain height, thereby securing a space for the perforation device to enter.

Meanwhile, the foldable variable arm (400) for the lift structure has the same configuration as the X-shaped foldable variable arm for the perforation device (120), so a detailed description is omitted.

For example, referring to (a) to (c) of FIG. 10, when there is not enough space for the puncture device (120) to enter the lower part of the electric vehicle due to reasons such as a flat tire, it can be confirmed that a pair of foldable variable arms (400) mounted on the lower part of the vehicle are unfolded to push the lift structure (410) into the lower part of the electric vehicle, and then the lift structure (410) is inflated by air or hydraulic pressure to lift the electric vehicle to a certain height.

In addition, referring to (a) and (b) of 11, it can be confirmed that the moving means (100) lifts the front part of the electric vehicle due to the expansion of the lift structure (410) and allows the perforation device (120) to enter the lower part of the electric vehicle through the newly formed entry space.

FIGS. 12 and 13 are exemplary drawings for explaining the configuration and operation of a folding frame (500) equipped with a suffocating fire extinguisher according to the present invention.

In the present invention, the moving means (100) may be configured to additionally include a suffocating fire extinguishing cloth (600) as a means for fire suppression together with the perforation device (120). The suffocating fire extinguishing cloth (600) may preferably be implemented on the upper part of a folding frame (500) mounted on the moving means (100).

The suffocating fire extinguishing blanket (600) can be implemented so that when the folding frame (500) is folded, the suffocating fire extinguishing blanket (600) is also folded and stored, and when the folding frame (500) is unfolded over the vehicle, the suffocating fire extinguishing blanket (600) covers the electric vehicle that has caught fire.

In more detail, the suffocating fire extinguisher (600) is implemented on the upper part of a folding frame (500) composed of two ‘ㄷ’ shaped frames as shown in FIG. 12, and the two ‘ㄷ’ shaped frames (502, 504) can be configured by facing each other and attached, and can be connected through a joint (510). At this time, one side of the ‘ㄷ’ shaped frame is a fixed ‘ㄷ’ shaped frame (502) that is fixed to a means of transportation, and the other side of the ‘ㄷ’ shaped frame can be configured as a rotating ‘ㄷ’ shaped frame (504) that is connected through the joint (510) and can be folded and unfolded. At this time, the fixed ‘ㄷ’ shaped frame (502) can be fixed to a frame (520) that can move up and down.

In the present invention, the folding frame (500) is implemented so that it can cover the entire length of the electric vehicle when the folding frame (500) is unfolded for more efficient operation of the means of transportation equipped with the folding frame (500), and the fixed ‘ㄷ’ shaped frame (502) fixed to the means of transportation is configured to have a variable length, and the rotating ‘ㄷ’ shaped frame (504) folded through the joint (510) can be implemented so that the length protruding when the folding frame is folded is minimized by being shorter than half the length of the fully unfolded length of the folding frame.

For example, in cases where the length of an electric vehicle is 5 m or longer, a folding frame needs to be 5 m or longer when unfolded, and even when folded once, it exceeds 2.5 m, which causes a problem in that it protrudes too much from the means of transportation. To address this, a fixed ‘ㄷ’ shaped frame (502) that is fixed to the means of transportation is designed to have a variable length, and a rotary ‘ㄷ’ shaped frame (504) that folds through a joint (510) is designed to be shortened to about 1.5 m in length, thereby reducing the protruding length when folded.

At this time, since the fixed ‘ㄷ’ shaped frame (502) whose length is variable is longer than about 3.5 m when unfolded, it may be difficult to support the weight of the frame in the means of transportation, so a frame support wheel (506) may be included at the end of the fixed ‘ㄷ’ shaped frame (502). The fixed ‘ㄷ’ shaped frame (502) whose length is variable may be driven hydraulically.

Meanwhile, in order to fold and unfold the folding frame (500), a joint gear (512) is provided on the axis of a joint (510) where two ‘ㄷ’ shaped frames are connected, and this joint gear (512) is driven by a rack-pinion (514, 516), but can be driven by pushing and pulling the rack gear by a separate hydraulic cylinder (518). In order to vary the length of the fixed ‘ㄷ’ shaped frame (502), a single hydraulic cylinder can be used for the fixed frame itself, and the driving of the hydraulic cylinder (502) can be driven by including a separate pump and pipe (519) and valve (not shown) connecting the water tank. The driving of the hydraulic cylinder for the joint driving can also be implemented in the same way.

Referring to Fig. 13, the overall process of unfolding the folding frame can be confirmed. When the means of transportation is moving, the folding frame (500) is folded and raised high, and when covering the electric vehicle, the folding frame (500) first comes down to the ground in a folded state, but does not come down completely. In that state, the rotating ‘ㄷ’ shaped frame (504) is first unfolded vertically, and in this state, the fixed ‘ㄷ’ shaped frame (502) is stretched horizontally as much as possible, and then the rotating ‘ㄷ’ shaped frame (504) is unfolded vertically again. After that, the entire folding frame (500) is completely lowered to the ground, and finally, the folding frame can be unfolded.

In Fig. 13, an example of folding the folding frame (500) once is shown, but it can also be folded twice. If it is folded twice, the second joint (not shown) can be placed in a part of the fixed ‘ㄷ’ shaped frame (502) closer to the means of transportation (100), and if the two joints are folded in sequence, the folding frame (500) stands vertically so that it does not protrude much from the means of transportation (100) and is closely attached (not shown). When the perforation device (120) is placed on the side of the means of transportation (500), the suffocating fire extinguisher (600) must also be placed on the side of the means of transportation (100), but in the case of having two joints, there is an advantage in that the suffocating fire extinguisher (600) can be placed on the side.

Figure 14 is a drawing showing an example of a form in which a suffocating fire extinguishing blanket (600) is unfolded together with the folding frame (500) when it is unfolded over the vehicle to cover an electric vehicle on fire. When a fire occurs in an electric vehicle, the moving means (100) moves to the electric vehicle with the suffocating fire extinguishing blanket (600) folded, inserts the perforation device (120) under the electric vehicle and places it under the battery pack, and at the same time unfolds the suffocating fire extinguishing blanket (600) to completely cover the electric vehicle to primarily extinguish the fire.

When covered with a fire extinguishing blanket (600), the battery pack is cooled by the perforation device (120) and oxygen is blocked at the same time, enabling more effective and faster fire suppression. In addition, it also has the advantage of preventing smoke and induced gas from being emitted.

Meanwhile, if a fire breaks out while the electric vehicle is charging, the electric vehicle has a charging cable connected to the charger, so when the folding frame (500) unfolds, the folding frame (500) may not unfold properly due to the charging cable getting caught.

In consideration of this point, the asphyxiating fire extinguishing blanket is fixed to the folding frame, but the end of the asphyxiating fire extinguishing blanket is configured to hang lower than the folding frame like a skirt (602), and a number of weights (604) are attached to the end of the asphyxiating fire extinguishing blanket so that when the folding frame is automatically unfolded and the asphyxiating fire extinguishing blanket covers the electric vehicle, even if the folding frame is not in close contact with the floor of the parking lot, the end of the asphyxiating fire extinguishing blanket can touch the floor of the parking lot and completely wrap the electric vehicle. This has the effect of allowing the asphyxiating fire extinguishing blanket to completely wrap the electric vehicle by allowing the asphyxiating fire extinguishing blanket to wrap around the charging cable and go down even when the charging cable is caught during the unfolding process of the folding frame (500).

Meanwhile, considering the above situation, an Auto-unplug charging gun has been proposed that is implemented to automatically unplug the charging plug when a fire occurs in an electric vehicle. Using this, in another embodiment, when the charging gun is plugged into the inlet, it is locked, and when a fire occurs, the lock is automatically released and the charging plug is pushed out to be unplugged.

Since it is difficult to implement this function in an existing charger, a cable cutting module capable of cutting the charging cable can be installed so that the charging cable is automatically cut in the event of a fire.

On the other hand, if a fire breaks out in an electric vehicle, thermal runaway can occur, which can spread the fire to adjacent vehicles. In this case, if the fire that spread to adjacent vehicles is not extinguished quickly, the fire can continue to spread to adjacent vehicles and surrounding buildings, which can potentially lead to greater damage.

In consideration of this, referring to FIG. 15, the means of transportation (100) according to the present invention may be configured to additionally include at least one spray module (700) for spraying firefighting water onto adjacent vehicles to prevent fire from spreading to adjacent vehicles of an electric vehicle where a fire has occurred. More specifically, the means of transportation (100) may operate to spray firefighting water onto adjacent vehicles of an electric vehicle where a fire has occurred via the spray module (700) after positioning itself to extinguish a fire, thereby preventing further flames from spreading to adjacent vehicles or extinguishing flames that have already spread. In particular, in the case where there is only a perforation device (120) without a suffocating fire extinguishing foam (600), it is even more necessary to spray firefighting water.

The spray module (700) preferably starts operating from the time the vehicle (100) is positioned as an electric vehicle for firefighting, and continues to spray water while extinguishing a fire in an electric vehicle, such as during the process of pushing a perforation device under the electric vehicle and the perforation process, and then stops operating when the flames in an adjacent vehicle disappear.

Hereinafter, the overall process of the mobile means (100) according to the present invention, which includes both a perforation device (120) and a suffocating fire extinguisher and a spray module, moving to an electric vehicle where a fire has occurred and performing firefighting work will be described as follows. Meanwhile, each process for the firefighting work described below has been described in detail in the process of explaining the configuration and operation of the mobile means above, so a detailed description will be omitted.

The mobile electric vehicle firefighting system installs a separate fire detection sensor in the parking lot, and when a fire in a specific electric vehicle is detected by the fire detection sensor, it sends fire report data to the fire department and transmits the location of the electric vehicle in question to the vehicle and remote control.

The means of transportation (100) moves to the location of the electric vehicle by autonomous driving or manual driving by a remote controller. At this time, the means of transportation (100) moves to the electric vehicle with the perforation device (120) and the folding frame (500) folded and lifted from the parking lot floor, and after moving, the perforation device (120) is lowered to the floor and inserted under the electric vehicle to be placed under the battery pack, and at the same time, the folding frame (500) is lowered to the floor and unfolded, and the asphyxiating fire extinguishing cloth (600) is unfolded to completely cover the electric vehicle to primarily extinguish the fire. In this process, the means of transportation (100) operates the spray module (700) to spray fire water onto the electric vehicle where the fire occurred and the adjacent vehicles, thereby preventing the fire from spreading to the adjacent vehicles or extinguishing the fire even if it has spread. The means of transportation (100) can stop the operation of the spray module (700) when the asphyxiating fire extinguishing cloth (600) is covered over the electric vehicle and there is no flame in the adjacent vehicles.

Thereafter, the moving means (100) drives the perforation device (120) to perforate a hole through the battery pack. During the perforation, water injected into the perforation device (120) is recovered into a water tank and reused. After the hole is perforated, firefighters are allowed to flow into the battery pack to extinguish the fire.

Meanwhile, the order of the firefighting work performed by the mobile electric vehicle firefighting system is not necessarily limited to this. In other words, depending on the embodiment, the order of the firefighting work may be applied by changing one or more processes or executing one or more processes in parallel, so each process is not limited to a chronological order.

Figure 16 is a drawing depicting a situation where a vehicle goes up a ramp to move between floors.

According to Fig. 16, in order for the means of transportation to go up a ramp, it must pass over a slope, in which case the end of the folding frame may touch the ground. To this end, the means of transportation includes a height adjustment means (804) that can adjust the height of the folding frame, and when going up the ramp surface (802), the means of transportation can be moved by appropriately raising the height of the folding frame using the height adjustment means.

Separately from this, the means of transportation (100) may have difficulty in making contact with the floor of the parking lot if the floor of the parking lot is uneven. To this end, the frame that fixes the folding frame may be implemented to additionally include a tilt function for adjusting the angle.

Fig. 17 is a drawing for explaining a method for remotely operating a means of transportation according to the present invention. Meanwhile, Fig. 17 exemplifies a case where a means of transportation according to the present invention is operated by a remote control method.

The mobile electric vehicle fire fighting system according to the present invention may be equipped with a separate remote control (920) and a monitor (900) and joystick (910) connected thereto.

Accordingly, the means of transportation (100) according to the present invention sends various data from the means of transportation controller to the remote controller through communication, and the remote controller displays information such as images on a monitor, and a remote manager can remotely manually operate the means of transportation using a joystick while looking at the monitor.

Meanwhile, although not shown in FIG. 17, in another embodiment of the present invention, the mobile vehicle (100) may be driven by an auto-navigation method in which the vehicle drives itself, and in another embodiment, the mobile electric vehicle firefighting system may include a control terminal connected to the controller of the mobile vehicle by a cable, so that when a fire occurs, the driver can follow the mobile vehicle and operate the control terminal to move the mobile vehicle and operate the perforation device and the suffocating fire extinguisher.

As described above, the present specification and drawings have disclosed embodiments of the present invention, and although specific terms have been used, they are only used in a general sense to easily explain the technical contents of the present invention and to help understand the invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100: Vehicle 110: Vehicle body
120: Perforation device 130: Water tank
132: Inlet 140: Water pump
142: 1st pipe 144: 2nd pipe
150: Motor 160: X-shaped folding variable arm
170: Camera 172: Ultrasonic sensor
180: Drive wheel 190: Warning light
200: Bogie 202: Height adjustment means
204: Wheel 210: Drill Module
212: Awl 220: Hole Cutter
222: Fire outlet 230: Inlet
240: exhaust port 250: housing
260: X-Lift 262: Fixed Bearing
264: Sliding bearing 270: Bar
272: Hydraulic cylinder 280: Wedge
282: Linear gear 290: Water barrier
300: Electric vehicle lower plate 302: Motor
304: Gear 306: Bolt
308, 310: Nuts 320: Guidelines for Driving Vehicles
321: Guidelines for stopping vehicles
400: X-shaped folding variable arm 410: Lift structure
500: Folding frame 502: Fixed 'ㄷ' shaped frame
504: Rotating 'ㄷ' shaped frame 506: Wheel for frame support
510: Joint 512 Joint Gear
514, 516: Rack-and-pinion 520: Up-and-down frame
600: Choking fire extinguisher 602: Skirt
604:Choo 700:Spray Module
800: Parking lot floor 802: Ramp surface
804: Height adjustment means
900: Monitor 910: Joystick
920: Remote Control

Claims (20)

In mobile electric vehicle fire fighting systems,
A bogie that moves and is positioned underneath the electric vehicle and has adjustable height;
A drill module is fixed to the top plate of the above-mentioned bogie, is in close contact with the battery pack arranged at the bottom of the above-mentioned electric vehicle, and perforates a hole and sprays fire extinguishing water into the inside of the above-mentioned electric vehicle battery pack through the perforated hole;
The above drill module
A housing into which fire extinguishing fluid is injected;
A turbine provided within the housing and generating rotational force by injected fire water;
A cylindrical hole cutter connected to the turbine and drilling a hole in the lower part of the electric vehicle through the rotational force of the turbine;
An elastic body positioned at the bottom of the hole cutter and applying upward pressure to the hole cutter;
One or more fire water discharge ports provided at the end or side of the above hole cutter and configured to allow fire water to enter the battery pack;
It includes an inlet for firefighters to enter and an outlet for the firefighters to return through the turbine, which is provided on the side of the housing;
A drilling device including the above-mentioned bogie and drill module;
A moving means on which the above perforation device is mounted;
Water tank provided in the above means of transportation;
A first pipe connecting the water tank and the inlet;
A water pump inserted in the middle of the first pipe;
A second pipe connecting the above discharge port and the water tank;
A valve inserted in the middle of the second pipe;
Including a driving means for pushing the above perforation device to a set position on the bottom of the electric vehicle.
In the event of a fire in an electric vehicle, the above-mentioned moving means moves to the electric vehicle where the fire occurred, pushes the perforation device into the bottom of the electric vehicle where the fire occurred, lifts the bogie, and places the top plate of the bogie against the bottom of the electric vehicle.
By operating the water pump, the fire water stored in the water tank is injected into the drill module through the first pipe to drive the drill module, and while the drill module is drilling a hole in the battery pack, the valve of the second pipe is opened so that the fire water injected into the drill module is recovered into the water tank and reused.
A mobile electric vehicle fire fighting system characterized in that after the drill module has drilled the hole, the valve of the second pipe is closed to induce the fire fighting water to be injected into the electric vehicle battery pack through the hole. In paragraph 1,
The above turbine
The structure is formed so that the wings are only on the outer side and not on the center side, and the fire water that enters the inlet before the perforation is completed rotates the turbine and then returns through the outlet.
A mobile electric vehicle fire fighting system characterized in that it is structured so that after the perforation is completed, the fire water flowing out of the discharge port is blocked so that the fire water entering the inlet enters the battery pack through the fire water discharge port of the hole cutter. In paragraph 1,
The above water pump operates at a constant water pressure,
A mobile electric vehicle firefighting system characterized in that the second pipe includes a water pressure sensor or a flow rate sensor, and when the hole cutter completes drilling and the firefighters start to enter the battery pack, the water pressure of the second pipe is detected to drop or the flow rate is reduced, thereby determining that the drilling is completed and closing the valve so that the firefighters do not turn the turbine any longer and all enter the battery pack. In the third paragraph,
The above water pump
A mobile electric vehicle fire fighting system characterized by controlling water pressure differently before locking the valve and after the fire water starts to enter the battery pack after locking the valve. In paragraph 1,
The above drill module
A mobile electric vehicle firefighting system characterized in that it comprises a water barrier configured to surround the hole cutter on the outside of the hole cutter and block fire water from being sprayed out through the fire water discharge port of the hole cutter, thereby minimizing the loss of the fire water by blocking fire water from being sprayed out through the space between the upper surface of the bogie and the floor plate of the electric vehicle through the water barrier. In paragraph 5,
The above perforation device
A mobile electric vehicle firefighting system characterized in that a plurality of sharp awls are included on the upper part of the bogie so that the bogie does not rotate along when the hole cutter rotates after the bogie is closely attached to the lower part of the vehicle, and an appropriate depth at which the awls enter the vehicle floor plate is determined in advance, and the water barrier is configured with a height of the entire height of the awls excluding the length that enters the lower part of the vehicle, so that when the hole is drilled, the water barrier is closely attached to the lower part of the vehicle as much as possible to prevent external leakage of the firefighter. In paragraph 1,
The above car is
A mobile electric vehicle firefighting system comprising: an X-lift configured with two X-shaped structures between the upper plate and the floor plate of the bogie; four upper, lower, left, and right structures on one side of the X-lift configured with fixed bearings and four upper, lower, left, and right structures on the opposite side configured with sliding bearings; and a bar connecting the two lower sliding bearing structures to drive the X-lift by pushing the bar; and a first hydraulic cylinder included between the middle portion of the bar and the floor plate to push the bar by hydraulic pressure and lift the X-lift until it comes into close contact with the lower part of the electric vehicle. In Article 7,
The above X-lift is
Including a fixing means consisting of a linear gear and a wedge.
A mobile electric vehicle fire fighting system characterized in that after lifting the X-lift by the first hydraulic cylinder, the wedge is fixed so that the height of the X-lift is maintained even without applying pressure to the first hydraulic cylinder. In paragraph 1,
The above means of transportation
A mobile electric vehicle firefighting system, comprising: a fixed bracket for fixing the perforation device to the mobile means; and an X-shaped foldable variable arm configured in a horizontal direction as a driving means for pushing the perforation device toward the bottom of the vehicle, wherein one end of the X-shaped foldable variable arm is fixed to the bottom of the mobile means and the other end is connected to the perforation device, and in normal times, the X-shaped foldable variable arm is folded to store the perforation device under the bottom of the mobile means; and when the mobile means stands at the location of the electric vehicle where a fire has broken out, the fixed bracket is opened to place the perforation device on the parking lot floor, and the X-shaped foldable variable arm is unfolded to push the perforation device to a specific position under the electric vehicle. In Article 9,
The above perforation device
A mobile electric vehicle firefighting system characterized by having a structure in which the wheels are supported by a spring and roll, and when a certain or greater load is applied to the perforation device, the wheels are spread out toward the outside of the perforation device so that the bottom plate of the perforation device comes into contact with the floor of the parking lot. In paragraph 1,
The above means of transportation
A mobile electric vehicle firefighting system comprising a pair of X-shaped foldable variable arms at the lower part of the body, and a vehicle lift at the end of the X-shaped foldable variable arms, wherein when the electric vehicle has a flat tire due to a fire and it is difficult for the perforation device to enter, the X-shaped foldable variable arms are unfolded to push the vehicle lift into the lower part of the electric vehicle, and the vehicle lift is driven to raise the electric vehicle by a predetermined height to secure a space for the perforation device to enter. In clause 9 or 11,
The above X-shaped foldable variable arm
A mobile electric vehicle firefighting system characterized in that the X-structure fixed to the above-mentioned means of transportation is driven by spreading or retracting both ends thereof, and includes a bolt-nut type driving unit, wherein the bolt has both ends fixed with bearings and a gear configured on the bolt, and a motor-reducer-gear assembly is added to the bolt gear to rotate the bolt, and the bolt has threads on both sides reversed with respect to the middle and a corresponding nut is fitted thereto so that when the bolt is turned in one direction, the nuts on both sides move toward or away from each other, and the X-type foldable variable arm is driven by connecting both ends of the X-type foldable variable arm to the two nuts respectively so that the both ends perform a linear movement simultaneously. In paragraph 1,
The above means of transportation
Including a suffocating fire extinguisher that is deployed along the forward and backward directions of the electric vehicle,
A mobile electric vehicle firefighting system characterized in that the asphyxiating fire extinguishing cloth is fixed to a folding frame composed of two 'ㄷ' shaped frames, and the two 'ㄷ' shaped frames are attached facing each other but have a joint at the upper part so that one side of the 'ㄷ' shaped frame is fixed to the moving vehicle and the other side is structured so that it can be folded and unfolded by rotation of the joint, and when the folding frame is normally folded, the asphyxiating fire extinguishing cloth is also stored in a folded state, and when the folding frame is unfolded over the vehicle, the asphyxiating fire extinguishing cloth covers the electric vehicle that is on fire. In Article 13,
The above folding frame
A mobile electric vehicle fire fighting system characterized by a structure that can be folded more than once. In Article 13,
The above folding frame,
A mobile electric vehicle firefighting system characterized in that the folding frame is implemented so as to fully cover the length of the electric vehicle when unfolded, the 'ㄷ' shaped frame fixed to the means of transportation is structured so as to have a variable length, and the 'ㄷ' shaped frame folded through the joint is implemented so as to be shorter than half the length of the fully unfolded length of the folding frame, thereby reducing the length that protrudes when the folding frame is folded. In Article 13,
The above folding frame fixed to the above moving means
A mobile electric vehicle fire fighting system characterized by being fixed to a frame capable of moving up and down. In Article 13,
The above suffocating digestive system,
A mobile electric vehicle firefighting system characterized in that the asphyxiating fire extinguishing blanket is fixed to the above folding frame, the end of the asphyxiating fire extinguishing blanket is configured to hang lower than the folding frame like a skirt, and a number of weights are attached to the end of the asphyxiating fire extinguishing blanket so that when the folding frame is unfolded and the asphyxiating fire extinguishing blanket covers the electric vehicle, even if the folding frame does not touch the floor of the parking lot, the end of the asphyxiating fire extinguishing blanket touches the floor of the parking lot and completely covers the electric vehicle. In Article 13,
The above means of transportation
Steering means for driving and turning
One or more sensing means among a camera, a lidar, a radar, a thermal imaging camera, an ultrasonic sensor; and
Including a vehicle controller with communication functions
A mobile electric vehicle firefighting system characterized by autonomously driving to find an electric vehicle in which a fire has broken out when a fire occurs, pushing the perforation device into the bottom of the electric vehicle to perforate the bottom, and covering the electric vehicle with the asphyxiating fire extinguishing cloth to prevent the spread of fire and smoke. In paragraph 1,
The above mobile electric vehicle fire fighting system
A mobile electric vehicle firefighting system characterized by having a remote controller with a separate communication function, a monitor, and a joystick, wherein the remote controller receives various data from a mobile vehicle controller provided in the mobile vehicle through communication and displays them on the monitor, and a remote manager remotely manually operates the mobile vehicle using the joystick while looking at the monitor. In paragraph 1,
The above means of transportation
A mobile electric vehicle firefighting system further comprising at least one spray module for spraying firefighting water onto an electric vehicle where a fire has occurred and onto both sides of the electric vehicle, wherein the spray module prevents the spread of fire by spraying the firefighting water onto the electric vehicle and a vehicle adjacent to the electric vehicle after the moving means is positioned toward the electric vehicle.