KR102765601B1 - Electric vehicle fire suppression system - Google Patents

Abstract

The present invention proposes an electric vehicle fire suppression system, characterized in that a vehicle is equipped with a foldable tank, and when a fire occurs in the electric vehicle, the vehicle moves toward the electric vehicle in a folded state, the foldable tank enters both sides of the electric vehicle, the foldable tank is unfolded over the electric vehicle to complete a tank surrounding the electric vehicle, and firefighting water is supplied to the tank to extinguish the electric vehicle.

Description

Electric vehicle fire suppression system {Electric vehicle fire suppression system}

The present invention relates to an electric vehicle fire suppression system configured to enable complete extinguishment of a fire in an electric vehicle on-site without moving the electric vehicle when a fire occurs in the electric vehicle by using an unmanned transport vehicle equipped with a foldable water tank for fire suppression.

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 with the aim of drastically reducing fossil fuel use due to climate change caused by pollution caused by fossil fuels.

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 breaks out 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 various methods for extinguishing electric vehicle fires have been proposed to date, they all have drawbacks, making effective fire extinguishment difficult. Some examples include:

The first method is to spray firefighters water under the electric vehicle to cool the battery pack, but this method requires a person to directly approach the electric vehicle on fire, insert the sprayer into the bottom of the electric vehicle, and spray the firefighters water. This method consumes too much firefighters water and causes water to overflow onto the parking lot floor. In addition, since a person must directly approach the fire, it is very dangerous, and it takes a lot of time to respond initially, making it difficult to extinguish the fire in the early stages.

The second method was proposed to drill a hole in the bottom of the electric vehicle and directly push firefighters into the battery pack. This method has the advantage of being able to put out the fire by directly pouring firefighters into the burning battery, but since there is not much empty space inside the battery pack, it is not possible to put in a lot of firefighters, and in some cases, drilling holes in healthy cells can actually amplify the fire. In addition, it takes about 10 minutes to drill a hole in the bottom of the electric vehicle, and since drilling only one hole is not effective, it takes a lot of time to drill multiple holes, and this also requires a person to approach and insert a drilling tool under the vehicle, and if a tire is punctured due to a fire, the car must be lifted to insert a drilling tool, so it is known to be an ineffective method for initial response.

The third 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 minimizes smoke generation, making it an advantageous method for initial firefighting. However, if the suffocating fire blanket is left on for a long time, hydrogen gas will be generated inside, causing an explosion, so it can last for about 20 to 30 minutes, but it is not the ultimate extinguishing method. This method also currently requires a person to approach and cover it with a suffocating fire blanket, but it has the disadvantage of taking a long time. Therefore, the key to effective initial extinguishment is how quickly the suffocating fire blanket can be covered.

The fourth 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 that has caught fire and put it in a tank, and it takes a lot of time for the fire department to come and finish this task.

The current fire department's fire response manual is to have firefighters go out, cover with suffocating fire extinguishers, take the vehicle out of the parking lot, assemble a water tank outside, and put the electric car into the tank. Since all of this involves direct human intervention, it is dangerous, and since it takes 20-30 minutes for firefighters to arrive, it is difficult to put out the fire in the early stages, making it difficult to prevent the spread of the fire, and there is a disadvantage that human casualties can occur due to the initial generation of toxic gases.

The fifth 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 and fill the suffocating fire extinguisher and water tank with water in the event of a fire. This is the fastest and most reliable way to put out a fire. However, electric vehicle fires occur more often in the storage state after charging than during charging, and since the number of charging stations needs to continue to increase, it is too expensive to install them on all charging surfaces, and since the ceiling height of parking lots is generally low, it is difficult to secure installation space, so it is not a realistic method.

Recently, there has been active research on using robots for unmanned firefighting. Korean Patent No. 10-2579070 proposes a method of using an unmanned firefighting vehicle equipped with a foldable asphyxiating fire extinguishing blanket to cover the fire with the asphyxiating 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 a lot of time to fill the tank with water and place the electric vehicle in the tank.

Therefore, a technology is needed to overcome the limitations in time, space, and cost of electric vehicle fire extinguishing operations using the above-mentioned tanks, thereby enabling more efficient and rapid fire suppression.

The present invention has been made to solve the above problems, and aims to present a very efficient and safe firefighting method in which a robot is used to quickly move to an electric vehicle on fire, create a water tank, and cover it with a suffocating fire extinguishing foam and a water tank to conduct firefighting, instead of a person approaching an electric vehicle on fire, covering it with a suffocating fire extinguishing foam, lifting the electric vehicle, and immersing it in a water tank.

In order to achieve the above purpose, the present invention,

In an electric vehicle fire suppression system, a foldable water tank having a square shape surrounding the electric vehicle and having a structure that can be folded and unfolded in the length direction, and a moving means that mounts and moves the foldable water tank and unfolds the folded water tank over the electric vehicle to create a water tank surrounding the electric vehicle are included.

The above-mentioned means of transportation is characterized by having a water tank for storing fire water, and by supplying the fire water stored in the water tank to the tank to extinguish the electric vehicle. The above-mentioned means of transportation has the advantage of being able to form the tank in a short period of time, as it can directly put the fire water into the collapsible tank without the need to pull and connect a separate fire hose, including the water tank.

In addition, in the present invention, a suffocating fire extinguishing blanket is fixed to the upper part of the frame of a foldable tank, and when the foldable tank is folded, the suffocating fire extinguishing blanket is also stored in a folded state, and when the foldable tank is unfolded over the vehicle, the suffocating fire extinguishing blanket is unfolded together to completely cover the electric vehicle on fire.

In the case of the present invention, a person does not need to directly approach an electric vehicle where a fire has broken out, but a mobile device (robot) is equipped with a foldable water tank and a foldable asphyxiating fire extinguishing foam, so that when a fire breaks out in an electric vehicle, the device is immediately moved to the electric vehicle where the fire broke out and unfolded over the electric vehicle where the fire broke out, so that a water tank and asphyxiating fire extinguishing foam surrounding the electric vehicle can be formed simultaneously on the scene, and a water tank is equipped on the mobile device so that water can be immediately filled in the water tank without the need to connect a water hose, thereby enabling safe and rapid fire fighting.

In addition, since one fire suppression system of the present invention can cover a wide parking lot and can move between floors, it can also cover a multi-story parking lot, and thus has the advantage of being able to be implemented at the lowest cost compared to methods known to date.

Figure 1 is a configuration diagram of a mobile vehicle equipped with a foldable water tank in an electric vehicle fire suppression system according to the present invention.
FIG. 2 and FIG. 3 are drawings illustrating a process in which a mobile means according to the present invention moves and enters a foldable water tank into an electric vehicle where a fire has occurred.
FIG. 4 is a drawing illustrating the driving operation of a foldable tank mounted on a means of transportation according to the present invention.
FIG. 5 is a drawing illustrating the driving operation of a foldable tank and a foldable suffocating fire extinguisher mounted on a means of transportation according to the present invention.
FIG. 6 is a drawing illustrating a fully unfolded form of a foldable tank and a foldable suffocating fire extinguisher according to the present invention.
FIGS. 7 and 8 are drawings illustrating additional configurations of a foldable tank according to the present invention.
FIGS. 9 and 10 are drawings for explaining the height adjustment and angle adjustment functions of the foldable tank of the means of transportation according to the present invention.
Figure 11 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 electric vehicle fire suppression system according to the present invention implements an unmanned fire extinguishing vehicle equipped with a foldable water tank, thereby suggesting a new method for more quickly and completely extinguishing a fire in an electric vehicle.

FIG. 1 is a configuration diagram of a mobile means equipped with a foldable water tank in an electric vehicle fire suppression system according to the present invention. Referring to FIG. 1, a mobile means (100) according to the present invention is configured to include a mobile means body (110), a foldable water tank (120), four drive wheels (170) having a diameter large enough to allow ramp entry for interfloor movement, a drive module (not shown) including a motor and a reducer for driving the drive wheels (170), a water tank drive module (136, 138) for folding and unfolding a foldable water tank frame, a water tank lifting means (140) for adjusting the height of the entire foldable water tank, a real-time camera and a thermal imaging camera (150) provided on the front, rear, and side of the mobile means, at least one sensor (152) among a lidar (not shown) and an ultrasonic wave (not shown), and a mobile means controller (not shown) for controlling the entire mobile means and communicating wirelessly 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 (170), 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 (170) 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 different from conventional unmanned guided vehicles in that it includes a water tank and a water tank in the body (110) of the means of transportation. The water tank is preferably configured in a square shape surrounding the electric vehicle, but may be implemented as a foldable water tank (120) that can be folded and unfolded in the longitudinal direction. The foldable water tank (120) is preferably configured with a light metal material so as to withstand flame. However, a non-metallic material may be used, or a tube-shaped water tank may be used.

The foldable tank (120) of the present invention is composed of a metal frame in which a vertical plate (126) is attached to a horizontal plate (124), and can be composed by attaching two ‘ㄷ’ shaped frames facing each other. To this end, the two ‘ㄷ’ shaped frames can be connected through a rotary joint (132) on the horizontal plate (124) facing each other. One of the ‘ㄷ’ shaped frames is a fixed ‘ㄷ’ shaped frame (121) fixed to the moving means (100), and the other is connected through the joint (132) to be a rotary ‘ㄷ’ shaped frame (122) that folds and unfolds the tank.

When the above-mentioned foldable tank (120) is unfolded, the length of the entire tank should be longer than the overall length of the vehicle to be covered. Since a vehicle with a long overall length is about 5.5 m, it is preferable that the length of the foldable tank (120) be about 6 m. The length of the rotating ‘ㄷ’ shaped frame (122) should be shorter than the floor height of the parking lot so as not to hit the ceiling of the parking lot when it is unfolded by rotation. However, if the length of the rotating ‘ㄷ’ shaped frame (122) is too short, the length of the tank in the folded state becomes long, and the length of the entire fire suppression system combined with the length of the vehicle becomes too long, which increases the turning radius and makes it difficult to operate. Therefore, it is preferable that the length of the rotating ‘ㄷ’ shaped frame (122) be as long as possible so as not to hit the ceiling of the parking lot, but not exceed half of the overall tank length. The width of the above-mentioned foldable tank (120) should be larger than the width of the vehicle and small enough not to hit a vehicle parked in a neighboring parking space. It is generally desirable to make the width similar to that of the parking space. In this regard, it is advantageous for the width of the horizontal plate (124) to be as narrow as possible.

Meanwhile, in the case of the present invention, it is preferable that the foldable tank (120) is implemented as a two-stage foldable when considering the conditions described above, but it is not necessarily limited thereto. For example, in another embodiment, the foldable tank (120) may be implemented as a larger size considering the size of the vehicle, and in this case, the foldable tank (120) may be implemented as a three-stage foldable or more stages. For example, in the case of a three-stage foldable, an ‘=’-shaped rotating frame may be additionally provided between the two ‘ㄷ’-shaped frames of the two-stage foldable.

Meanwhile, after the foldable tank (120) is covered over the electric vehicle and lowered to the floor to form the tank, a cushion material (128) that blocks the gap between the tank and the floor to prevent water from leaking due to the curvature of the floor of the parking lot or foreign substances can be added to the end of the vertical plate (126). The cushion material (128) can be implemented with a highly elastic rubber material or can be in the form of a tube that is inflated with air. The cushion material (128) can be pressed by the weight of the tank so that it is well pressed against the floor surface.

When the foldable tank (120) is unfolded, a connecting packing means (129) may be included to prevent water from leaking into the area where the cross sections of the two ‘ㄷ’ shaped frames meet each other. The packing means (129) is preferably made of a rubber material with good elasticity, and it is preferable to use a flame-retardant material so that it is not damaged by flame. The packing means may be pressed down too much by the weight of the rotating ‘ㄷ’ shaped frame (122), so to prevent this, a tank reinforcing means (ex: support, 142) may be provided at the point where the two frames meet so that a certain amount of pressure is not applied.

In order to fold and unfold the above-described foldable tank, a joint gear (134) may be configured on the above-described rotary joint (132), and a motor may be directly attached to the gear to drive it. However, there is a disadvantage that the motor and the driving device may melt if exposed to flame for a certain period of time. In order to solve this problem, a driving gear (136) and a motor assembly (138) may be configured on both sides of the above-described moving means, and then the driving gear (136) and the above-described joint gear (134) may be connected by a chain (139) to drive the foldable tank. In this case, since there is no plastic or rubber material other than metal around the rotary joint, there is an advantage of safety even if exposed to flame for a long period of time.

The moving means (100) may be configured to include a motor drive module (not shown) that drives the drive wheel (170), a tank drive gear (136) and a motor assembly (138) that fold and unfold the foldable tank frame, and a tank lifting means (140) that adjusts the height of the entire foldable tank.

In addition, the front and rear of the above-mentioned means of transportation may be equipped with sensors such as a real-time camera, a thermal imaging camera, a lidar, and ultrasonic waves to sense images of the front and rear of the vehicle and use them for driving. The above-mentioned means of transportation may be configured to include a means of transportation controller that controls the entire means of transportation and communicates wirelessly with the outside.

The means of transportation (100) is equipped with a camera or ultrasonic sensor (154) at the end of the foldable tank (120) so that the height of the foldable tank (120) can be adjusted so as not to hit the ceiling of a parking lot or a fire vehicle when unfolding the foldable tank.

The means of transportation (100) has a built-in battery and is driven by energy stored in the battery, and may be equipped with a charging port for charging the battery.

Meanwhile, the means of transportation (100) is equipped with a water tank (160) for storing fire water, so that fire water can be directly supplied to the collapsible water tank without having to bring in a fire hose, and thus has the advantage of being able to create a water tank in a short period of time. It is preferable that the size of the water tank (160) be such that it can store enough fire water to fill the water tank. Here, in case the water quantity of the water tank (160) is insufficient, an inlet (162) can be provided to connect a fire hose and replenish the water tank (160) with fire water. However, since connecting the fire hose can be done with a sufficient amount of time, it does not cause any burden on fire suppression.

Hereinafter, with reference to FIGS. 2 and 3, a process of moving and entering a foldable tank (120) into an electric vehicle where a fire has occurred by a means of transportation (100) according to the present invention will be described. Referring to FIG. 2, the means of transportation can be stored in a parking lot as if it were parked in a specific parking space with the water tank filled with fire water and the foldable tank folded in a normal state. At this time, the foldable tank is stored in a state of being lifted using a foldable tank lifting device (140).

In the event of a fire in a specific electric vehicle parked in a parking lot, the vehicle moves to the parking location of the electric vehicle (200) in which the fire occurred. The vehicle receives front images from sensors such as cameras, thermal imaging cameras, lidars, and ultrasonic waves installed in the vehicle and drives along the parking lot passageway. The vehicle may drive autonomously or may be driven remotely by a person viewing the screen and operating it. In the event of autonomous driving, the vehicle stops when an obstacle appears in front and waits for a certain period of time until the obstacle is removed. If the obstacle is not removed, the vehicle drives around the obstacle. In the event of remote control, a person makes a judgment to stop or drive around the obstacle.

FIG. 3 shows an operation of the above-described moving means stopping in front of an electric vehicle on fire, turning vertically using a steering means, and then entering the foldable tank into the electric vehicle. Here, the moving means (100) enters the foldable tank (120) on both sides of the electric vehicle (200) on fire, but must monitor the surrounding situation using a camera, a thermal imaging camera, etc. provided in the moving means so that the foldable tank (120) does not collide with a vehicle parked nearby. The camera, the thermal imaging camera, etc. can be installed at the end of the moving means so that the end of the foldable tank is clearly visible. The moving means (100) stops entering when the distance between the inside of the foldable tank and the front of the electric vehicle becomes a certain interval.

Figure 4 shows an operation of unfolding a foldable tank after the vehicle stops. When the foldable tank (120) enters both sides of the electric vehicle (200), the vehicle (100) lowers the foldable tank (120) onto the parking lot floor using the foldable tank lifting device (140). Thereafter, the tank drive gear (136) and motor assembly (138) provided on the vehicle are driven, and power is transmitted to the joint gear (134) via a chain (139) so that the foldable tank (120) unfolds over the electric vehicle (200). As a result, a frame-shaped tank surrounding the electric vehicle can be formed.

Meanwhile, in the present invention, the tank drive module (130) that drives the foldable tank (120) is described as a chain-type tank drive module, but it is not necessarily limited to this. For example, the tank drive module (130) can be implemented to drive the foldable tank (120) according to various drive methods such as a hydraulic drive method and a motor drive method.

When the above-mentioned foldable tank is fully unfolded and the tank is completed, firefighting water stored in the water tank equipped on the above-mentioned moving means is supplied to the tank to extinguish the fire. The water tank (160) and the foldable tank (120) are connected by a pipe (161), and the height of the water tank is made higher than the height at which water is filled in the tank, so that water can be lowered into the tank without a separate pump. At this time, a valve is provided in the pipe (161), so that the valve can be operated to close after the tank is filled with firefighting water. A water pump can also be applied to the pipe to quickly inject firefighting water regardless of the height of the water tank.

The foldable tank includes a water level sensor (not shown) so that when the water level reaches a target value, the valve is locked, and when the water level drops below a predetermined value due to a leak, the valve is opened again to control the water level of the foldable tank. It is preferable that the water level target value is set high enough to sufficiently submerge the battery pack of the electric vehicle. The foldable tank includes a temperature sensor (not shown), and when the temperature of the tank rises above a certain range, more fire water from the water tank is added, so that the heated fire water overflows into the tank, thereby controlling the water temperature inside the tank to within a certain range. In addition, the means of transportation may be provided with an inlet (162) for connecting a fire hose to replenish fire water to the water tank (160) when the fire water stored in the water tank (160) is insufficient.

Meanwhile, if a fire occurs while the electric vehicle (200) is being charged, the charging cable connected to the charger is connected to the electric vehicle (200), so the folding tank (120) may not be properly opened due to the charging cable getting caught in the process of unfolding. If there is slack in the charging cable and the charging cable is lowered to the floor, a cushion material (128) provided at the end of the folding tank can be used to wrap the charging cable to implement a certain degree of waterproofing. However, if there is no slack in the charging cable and the cable is lifted from the floor, there is a problem with waterproofing and the tank cannot be properly implemented.

Considering this, an Auto-unplug charging gun has been proposed that automatically unplugs the charging plug in the event of a fire in an electric vehicle. When the charging gun is plugged into the inlet, it locks, and in the event of a fire, the lock is automatically released and the charging plug can be pushed out to be unplugged.

Since it is difficult to implement this function in the case of existing chargers, a cable cutting module capable of cutting the charging cable is provided, and the cable cutting module can be implemented to automatically cut the charging cable in the event of a fire.

FIG. 5 shows an operation of adding a suffocating fire extinguishing blanket (300) to the above-described foldable tank (120) and covering the suffocating fire extinguishing blanket together with the above-described foldable tank. In the present invention, the means of transportation (100) may be configured to additionally include a suffocating fire extinguishing blanket (300) as a means for extinguishing a fire together with the foldable tank. The suffocating fire extinguishing blanket (300) is fixed to the upper part of the frame of the foldable tank (120), and when the foldable tank (120) is folded, the suffocating fire extinguishing blanket (300) is also stored in a folded state, and when the foldable tank (120) is unfolded over the vehicle, it is unfolded together to cover the electric vehicle (200) that has caught fire. When the suffocating fire extinguishing blanket is covered together, the battery pack is cooled by the tank and oxygen is blocked at the same time, so that more effective and faster fire extinguishment is possible.

Fig. 6 (a) shows a firefighting means implementing only a collapsible tank, and Fig. 6 (b) shows a three-dimensional drawing of a firefighting means combining a collapsible tank and a suffocating fire extinguisher. Since the implementation of a suffocating fire extinguisher is not difficult, a system combining two firefighting means, as in Fig. 6 (b), can be a much more effective method.

FIGS. 7 and 8 are drawings illustrating additional configurations of a foldable tank according to the present invention.

As shown in Fig. 7 (a), the foldable tank (120) may be provided with an additional reinforcing member (400) that supports the horizontal plate (124) and the vertical plate (126) so that the ‘ㄷ’ shaped frame constituting the foldable tank (120) can maintain its shape more firmly.

In another embodiment, referring to FIG. 7 (b), the foldable tank (120) may include a leak-preventing film member (410) made of a material much more flexible than the cushion material (128) on the inside of the cushion material (128), and the leak-preventing film member (310) may be implemented to additionally block leakage by coming into close contact with the floor surface of the parking lot.

In order to further prevent leakage of the above-described foldable tank (120), a leak-prevention film member may be additionally installed on the entire surface of a certain portion of the bottom surface at both ends of the above-described foldable tank, as shown in FIG. 8. When the foldable tank enters an electric vehicle in which a fire has broken out, even if the first leak-prevention film member (412) is attached to the entire bottom surface of a portion of the lower part of the fixed ‘ㄷ’ shaped frame (121), there is no problem in entering up to the front wheels of the electric vehicle (when parked at the rear). In this case, since there may be various obstacles such as water channels at the front of the parking lot, it can be of great help in preventing leakage. The same second leak-prevention film member (414) may also be attached to the bottom surface of the lower part of the end of the rotating ‘ㄷ’ shaped frame (122) of the foldable tank (120).

Here, the first auxiliary water-leakage prevention film member (412) additionally provided on the inner bottom surface of the end of the fixed ‘ㄷ’ shaped frame (121) may preferably be provided so as to extend to the point where the front wheel of the electric vehicle (200) is located when the electric vehicle (200) is accommodated inside the foldable tank (120).

In addition, the second auxiliary leak-prevention film member (414) additionally provided on the inner bottom surface of the end of the rotating ‘ㄷ’ shaped frame (122) may preferably be provided wider than the end of the electric vehicle (200) when the electric vehicle (200) is accommodated inside the foldable tank (120) in consideration of the situation in which the rotating ‘ㄷ’ shaped frame (122) is folded in the future. At this time, the second auxiliary leak-prevention film member (414) is made of a flexible material so that even if the second auxiliary leak-prevention film member (414) hits the electric vehicle when the foldable tank (120) is unfolded, the leak-prevention film member can be easily stretched so that the foldable tank (120) can be fully unfolded.

FIG. 9 and FIG. 10 are drawings for explaining the height adjustment and angle adjustment functions of the foldable tank of the means of transportation according to the present invention. In the present invention, the means of transportation (100) may be provided with a function for adjusting the overall height of the foldable tank (120) including the tank lifting means (140). The tank lifting means (140) may be implemented hydraulically or may be implemented with a gear assembly such as a rack-and-pinion.

First, referring to FIG. 9, in the embodiment of the present invention, the transportation means (100) can adjust the overall height of the foldable tank (120) differently according to the size of the electric vehicle (200) in which the foldable tank (120) is unfolded. In the case of most electric vehicles in the present invention, when the foldable tank (120) is unfolded while being placed on the floor, it can be configured to unfold without hitting the ceiling of the electric vehicle and cover the electric vehicle (200). However, in the case of a vehicle with a tall garage and a large overall length, such as a truck, there is a possibility that the foldable tank (120) may hit the electric vehicle and may not be fully unfolded. In this case, the means of transportation (100) lifts the foldable tank (120) higher than before through the tank height adjustment function (140) and unfolds the foldable tank (120), thereby allowing the foldable tank (120) to unfold completely over the electric vehicle, thereby completing a tank that surrounds the electric vehicle.

To this end, the foldable tank (120) includes one or more collision-avoidance sensors (154), such as a camera, a contact sensor, or an ultrasonic sensor, at the end of the tank to prevent the tank from hitting the vehicle or the ceiling of the parking lot when it enters both sides of the fire electric vehicle and unfolds the tank over the vehicle, and the moving means can adjust the height of the foldable tank according to the result value of the collision-avoidance sensor (154). This collision-avoidance sensor (154) can be implemented to be formed protruding from the upper part of the body of the moving means (100) so as to have a wider field of view.

According to FIG. 9, the moving means (100) may have difficulty in contacting the foldable tank (120) with the parking lot floor when the parking lot floor is uneven. To this end, the moving means (100) may be implemented by additionally including a tilt function for adjusting the angle of the tank lifting means (140).

Figure 10 is a drawing depicting a situation in which the above-mentioned moving means goes up a ramp for moving between floors. In order to go up a ramp, since the end of the above-mentioned foldable tank may touch the floor even when folded on an inclined surface, it is necessary to operate the above-mentioned tank lifting means (140) to appropriately increase the height of the above-mentioned foldable tank.

Meanwhile, as shown in FIG. 1, in the case of the present invention, a reinforcing means (142) may be provided between the tank lifting means (140) and the foldable tank (120) to support the weight of the foldable tank (120) supported by the tank lifting means (140).

Figure 11 is a drawing for explaining a method of operating a means of transportation according to the present invention.

Meanwhile, Fig. 11 illustrates a case where a means of transportation according to the present invention is operated by remote control.

As described above, in the present invention, the moving means (100) may be equipped with a camera (150), one or more sensors (152) among a thermal imaging camera, a lidar, and an ultrasonic wave, and a status indicator light (156). At this time, the camera (150) and one or more sensors (152) may be protected by a protective means made of a flame retardant material.

In addition, the electric vehicle fire suppression system may be equipped with a separate remote control unit (520) and a monitor (500) and joystick (510) 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 (520) through communication, and the remote controller displays information such as images on the monitor (500), and the remote manager can remotely manually operate the means of transportation using the joystick (510) while looking at the monitor (500).

Meanwhile, although not shown in FIG. 11, in another embodiment of the present invention, the moving means (100) may be driven by an auto-navigation method in which it drives itself.

For example, in the present invention, the electric vehicle fire suppression system is provided with a separate fire monitoring means in the parking lot, and when a fire in a specific electric vehicle is recognized by the fire monitoring means, the fire monitoring means transmits the location of the electric vehicle in which the fire occurred to the moving means and the remote controller, and the moving means moves to the location of the electric vehicle autonomously or by the remote controller and can cover the water tank to extinguish the fire. The fire monitoring means may preferably be provided on a pillar or wall of a parking space or on a passageway of the parking lot. The fire monitoring means may be a camera, a thermal imaging camera, or a detection means capable of detecting odor or gas.

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: Folding tank 121: Fixed frame
122: Folding frame 124: Horizontal plate
126: Vertical plate 128: Cushion material
129: Packing means for bonding
132: Joints
134: Gear 136: Drive Gear
138: Motor 139: Chain
140: Tank lifting means 142: Tank reinforcing means
150: Camera 152: Sensor
154: Collision prevention sensor 156: Status indicator light
160: Water tank 162: Inlet
200: Electric car 300: Asphyxiating fire extinguisher
400: Reinforcing member 410: Leakage prevention film member
412, 414: Auxiliary leak prevention film member 420: Parking lot floor
4430: Ramp surface
500: Monitor 510: Joystick
520: Remote Control

Claims (17)

In electric vehicle fire suppression systems,
A foldable tank having a square shape surrounding the electric vehicle and a structure that can be folded and unfolded lengthwise;
A moving means for mounting and moving the above-mentioned foldable tank and folding and unfolding the above-mentioned foldable tank;
water tank;
Including a pipe connecting the above water tank and the above foldable tank;
When a fire occurs in an electric vehicle, the above-mentioned transportation means moves to the electric vehicle with the above-mentioned foldable tank folded, and after the above-mentioned foldable tank enters both sides of the electric vehicle, the above-mentioned foldable tank is unfolded over the electric vehicle and then lowered to the floor to complete a tank surrounding the electric vehicle, and the above-mentioned fire fighting water stored in the above-mentioned water tank is poured into the above-mentioned tank to extinguish the electric vehicle.
The above folding tank is
It is composed of a frame with a vertical plate attached to a horizontal plate, and two 'ㄷ' shaped frames are attached facing each other, and a joint is placed on the horizontal plate so that one side of the 'ㄷ' shaped frame is fixed to the moving means and the other side is structured to be folded and unfolded by rotation of the joint, or
An electric vehicle fire suppression system characterized in that the two 'ㄷ' shaped frames are arranged to face each other, and at least one '=' shaped frame is additionally provided between the two 'ㄷ' shaped frames, so that the system can be folded and unfolded in multiple stages. delete In paragraph 1,
The above folding tank
An electric vehicle fire suppression system characterized in that a gear is formed at the above joint, a drive gear and a motor assembly are formed on both sides of the above moving means, and then the drive gear and the above joint gear are connected by a chain to drive a foldable tank. In paragraph 1,
The above folding tank
An electric vehicle fire suppression system characterized in that it includes a cushion material in the lower part of a tank to block the gap between the tank and the floor to prevent water from leaking due to the curvature of the parking lot floor or foreign substances, and includes a packing means to prevent water from leaking in the part where the cross sections of the foldable tank meet each other when the foldable tank is unfolded. delete In paragraph 4,
The above folding tank
An electric vehicle fire suppression system characterized in that it includes a leak-prevention film member made of a material more flexible than the cushion material on the inside of the cushion material, and the leak-prevention film adheres closely to the floor of the parking lot to further block leakage. In paragraph 1,
The above folding tank is
An electric vehicle fire suppression system characterized in that an auxiliary leak-prevention film member can be additionally installed throughout a certain portion of the bottom surface at both ends of the above-mentioned foldable tank. In paragraph 1,
The above folding tank is
An electric vehicle fire suppression system characterized in that a suffocating fire extinguishing blanket is fixed to the upper part of the above-mentioned foldable tank frame, and when the above-mentioned foldable tank is folded, the suffocating fire extinguishing blanket is also stored in a folded state, and when the above-mentioned foldable tank is unfolded over the vehicle, the suffocating fire extinguishing blanket is unfolded together to cover the electric vehicle on fire. In paragraph 1,
The above means of transportation
Drive wheels thick enough to allow ramp entry for moving between floors;
A steering means for changing the direction of the above-mentioned means of transportation;
A motor drive module for driving the above driving wheel;
A tank drive module that folds and unfolds the above-mentioned foldable tank frame;
A tank lifting means for adjusting the height of the entire above-mentioned foldable tank;
At least one sensor among a real-time camera, a thermal imaging camera, a lidar, and an ultrasonic sensor provided on the front and rear of the above-mentioned means of transportation;
An electric vehicle fire suppression system, characterized in that it further includes a vehicle controller that controls the entire vehicle and wirelessly communicates with the outside. In Article 9,
The above means of transportation
An electric vehicle fire suppression system characterized by including a function for adjusting the angle (tilt) of the tank lifting means so that the above-mentioned foldable tank can be placed in close contact with the floor of the parking lot. delete In paragraph 1,
The above moving means includes a valve in the middle of the water tank and the pipe connecting the water tank and the foldable water tank.
The above foldable tank includes a water level sensor.
An electric vehicle fire suppression system characterized in that the valve is locked when the water level reaches a target value, and the valve is opened again when the water level drops below a predetermined value due to leakage to control the water level of the foldable water tank. In paragraph 1,
An electric vehicle fire suppression system, characterized in that the above-mentioned foldable tank includes a temperature sensor, and when the water temperature of the tank rises above a certain range, more firefighting water from a water tank is added so that the heated firefighting water overflows over the tank, thereby controlling the water temperature inside the tank to within a certain range. In Article 12,
The above means of transportation
An electric vehicle fire suppression system characterized by having an inlet for connecting a fire hose to replenish fire water to the water tank when the water quantity of the water tank is insufficient. In paragraph 1,
The above means of transportation
An electric vehicle fire suppression system characterized by driving itself to find an electric vehicle in fire and automatically extinguishing the fire by covering it with the above-mentioned foldable water tank. In Article 9,
Electric vehicle fire suppression system
Equipped with a separate remote control and a monitor and joystick connected to the remote control
An electric vehicle fire suppression system, characterized in that the remote controller receives various data from the vehicle controller through communication and displays information such as images, sounds, etc. on the monitor, and the remote manager remotely manually operates the vehicle using the joystick while looking at the monitor. delete