KR102784698B1 - Mobile electric vehicle fire extinguishing apparatus and mobile electric vehicle fire extinguishing system including the same - Google Patents

Abstract

A portable electric vehicle fire extinguishing device according to the present invention comprises: a tubular tank which is compressible and deformable into a compressed state and an expanded state in which water is filled inside, and which is formed into an annular shape when in the expanded state to surround the ground so that at least a part of the electric vehicle is accommodated in the fire extinguishing space formed therein; a flame retardant cover coupled to the tubular tank so as to cover an opening formed in the tubular tank so as to cover the fire extinguishing space; a compressible water injection hose coupled so as to be in communication with the tubular tank and configured to fill the inside of the tubular tank with water; and a compressible fire extinguishing fluid injection unit which is in communication with the inner side of the flame retardant cover so as to inject a fire extinguishing fluid for a lithium-based battery into the fire extinguishing space.

Description

{MOBILE ELECTRIC VEHICLE FIRE EXTINGUISHING APPARATUS AND MOBILE ELECTRIC VEHICLE FIRE EXTINGUISHING SYSTEM INCLUDING THE SAME}

The present invention relates to a mobile electric vehicle fire extinguishing device and a mobile electric vehicle fire extinguishing system including the same. More specifically, the present invention relates to a mobile electric vehicle fire extinguishing device that is capable of extinguishing a fire in an electric vehicle and being easily carried when a fire suddenly occurs in the battery of the electric vehicle, and a mobile electric vehicle fire extinguishing system including the same.

Conventional automobiles mainly used internal combustion engines that used gasoline or diesel fuel. However, as environmental issues due to carbon dioxide have become a concern recently, interest in and demand for electric vehicles, rather than internal combustion engine vehicles that generate carbon dioxide, are increasing.

In electric vehicles, batteries are one of the most important elements. Lithium batteries, which are generally used as batteries for electric vehicles, can ignite and explode due to external impact and internal short circuits. If an explosion occurs in one cell of a lithium battery, the explosive force can physically impact adjacent cells, causing a chain reaction of thermal runaway.

Therefore, once an electric vehicle fire starts, it is difficult to extinguish and can easily be re-ignited until it is completely burned. Furthermore, since the electric vehicle battery is installed in a sealed space under the vehicle, it is difficult to spray fire water exactly where it is needed in the event of a fire, and there is the difficulty of having to continuously pour in a large amount of fire water for a long time to extinguish the fire.

Currently, the most effective method of extinguishing a fire in an electric vehicle is to lift the burning electric vehicle with a crane and place it in a tank filled with water to extinguish it.

However, this requires the installation of a large water tank on site, and there is the difficulty of having to lift the electric vehicle in question using a crane, etc. In particular, if a fire breaks out while the electric vehicle is parked in an indoor parking lot, it is difficult to lift the electric vehicle using a crane, etc., and the fire must be extinguished because it can spread to other cars or buildings.

Furthermore, fires that occur in electric vehicles do not occur at a set time and place, but are mostly accidental. Therefore, it is difficult to prepare a water tank at the scene of an accidental electric vehicle fire.

The background technology described above is technology that the inventor possessed or acquired in the process of deriving the disclosure content of the present application, and cannot necessarily be said to be a publicly known technology disclosed to the general public prior to the present application.

The present invention has been made to solve the above problems, and the object of the present invention is to provide a movable tank that is easy to install, can extinguish a fire by putting it in a tank without moving a vehicle, and is portable.

The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary skill in the technical field to which the present disclosure belongs from the description below.

A portable electric vehicle fire extinguishing device according to one embodiment of the present invention comprises: a tubular tank that is compressible and can be transformed into a compressed state and an expanded state in which water is filled inside, and is configured to accommodate at least a portion of an electric vehicle in a fire extinguishing space formed by surrounding the ground by forming an annular shape when in the expanded state; a flame retardant cover coupled to the tubular tank so as to cover an opening formed in the tubular tank so as to cover the fire extinguishing space; a compressible water injection hose coupled so as to be in communication with the tubular tank and configured to fill the inside of the tubular tank with water; and a compressible fire extinguishing liquid injection unit that is in communication with the inner side of the flame retardant cover so as to inject a fire extinguishing liquid for a lithium-based battery into the fire extinguishing space.

The tubular tank may include a tank body configured to protrude from the ground and a deformable pad coupled to a side of the tank body facing the ground.

The height of the tubular tank from the ground may be greater than the height of the battery pack from the ground to enable the battery pack of the electric vehicle to be immersed in the fire retardant solution.

The flame retardant cover may be located on the side opposite the ground-facing side of the tubular tank.

The flame retardant cover may include at least one of carbon fiber or glass fiber to provide flame retardancy.

The flame retardant cover may further include a gas exhaust hose coupled to the flame retardant cover so as to communicate with the inner side of the flame retardant cover.

The gas discharge hose may be configured to be compressible.

The gas discharge hose may further include a filter positioned inside the gas discharge hose to filter out hydrogen fluoride or hydrogen sulfite.

A mobile electric vehicle fire extinguishing system according to one embodiment of the present invention includes a mobile electric vehicle fire extinguishing device and a fire extinguishing liquid injection device configured to penetrate a fire extinguishing liquid injection port of the mobile electric vehicle fire extinguishing device and configured to inject a fire extinguishing liquid for a lithium-based battery into a fire extinguishing space, wherein the fire extinguishing liquid for a lithium-based battery includes lime powder, a sodium compound, vanadium carbide, cerium oxide, manganese, and graphite.

It may further include a storage case configured to accommodate a tubular tank, a flame retardant cover, a water injection hose and a fire retardant injection port.

A mobile electric vehicle fire extinguishing device according to one embodiment of the present invention is compressible, so that a fire can be extinguished by putting the vehicle in a tank without moving it, and a movable tank can be formed.

The height of the tubular tank of the portable electric vehicle fire extinguishing device according to one embodiment of the present invention is formed to be higher than the height of the battery pack, so that when the tubular tank is filled with the fire extinguishing liquid, the battery pack is immersed in the fire extinguishing liquid, thereby effectively suppressing a fire.

A mobile electric vehicle fire extinguishing device according to one embodiment of the present invention can ensure close contact between a tubular tank and the ground by positioning a deformable pad on a side of the tank body facing the ground.

A mobile electric vehicle fire extinguishing device according to one embodiment of the present invention includes a gas discharge hose and a filter installed in the gas discharge hose, thereby allowing gas generated in an electric vehicle fire to flow to a safe location.

A mobile electric vehicle fire extinguishing system according to one embodiment of the present invention can have the above effects by including the mobile electric vehicle fire extinguishing device.

A mobile electric vehicle fire extinguishing system according to one embodiment of the present invention is configured to spray a lithium battery fire extinguishing liquid that neutralizes toxic substances and suppresses chemical exothermic reactions onto the lower part of a vehicle, thereby effectively extinguishing a fire in the vehicle.

The effects obtainable from the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by a person skilled in the art to which the present disclosure belongs from the description below.

FIG. 1 is a conceptual diagram illustrating an electric vehicle and a mobile electric vehicle fire extinguishing device according to one embodiment of the present invention.
Figure 2 is a conceptual diagram illustrating the mobile electric vehicle fire extinguishing device illustrated in Figure 1 covered on an electric vehicle.
Figure 3 is a conceptual diagram illustrating the tubular tank of the mobile electric vehicle fire extinguishing device illustrated in Figure 2 being filled with water.
Figure 4 is a conceptual diagram illustrating a fire extinguishing liquid injection device inserted into the fire extinguishing space of the mobile electric vehicle fire extinguishing device illustrated in Figure 3.
Figure 5 is a conceptual diagram illustrating a fire being extinguished by spraying water on the flame retardant cover of the mobile electric vehicle fire extinguishing device illustrated in Figure 4.

Hereinafter, with reference to the attached drawings, preferred embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited or restricted by the following embodiments.

In order to clearly explain the present invention, a detailed description of a part that is irrelevant to the description or a related known technology that may unnecessarily obscure the gist of the present invention has been omitted, and when adding reference signs to components in each drawing in this specification, the same or similar reference signs are attached to the same or similar components throughout the specification.

In addition, terms or words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical idea of the present invention based on the principle that an inventor can appropriately define the concept of a term in order to explain his or her own invention in the best way.

It should be understood that the various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents (W1), or substitutes (W1) of the embodiments.

In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

The singular form of a noun corresponding to an item may include one or more of said items, unless the context clearly indicates otherwise.

In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in that phrase, or all possible combinations of them.

The term "and/or" includes any combination of multiple related described elements or any one of multiple related described elements.

Terms such as “first,” “second,” or “first” or “second” may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order) (130a-1).

When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

The terms "include" or "have" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in this document, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

When a component is said to be “connected,” “coupled,” “supported,” or “contacted” with another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

Meanwhile, the terms “upper and lower direction,” “lower side,” and “front and rear direction” used in the following description are defined based on the drawing, and the shape and position of each component are not limited by these terms.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is a conceptual diagram illustrating an electric vehicle (V) and a mobile electric vehicle fire extinguishing device (1) according to one embodiment of the present invention.

Referring to FIG. 1, a mobile electric vehicle fire extinguishing device (1) according to one embodiment of the present invention is described.

As shown in Fig. 1, an electric vehicle (V) may be provided for movement. The electric vehicle (V) in the description of one embodiment of the present invention may be a vehicle using a general internal combustion engine or something that is a target of fire suppression, as needed. However, in the present disclosure, for the convenience of explanation, it is assumed and described that the electric vehicle (V) is provided as a target of fire suppression. Furthermore, the electric vehicle (V) may mean not only a vehicle that is driven solely by electricity, but also all vehicles that are driven by electricity, such as hybrid vehicles.

The electric vehicle (V) may include a battery pack (BP) configured to generate electricity. The battery pack (BP) may accommodate a battery (not shown) therein. The battery pack (BP) may be located at the bottom of the electric vehicle (V) for reasons such as securing a passenger boarding space. A fire may occur in the battery pack (BP). If a fire occurring in the battery pack (BP) is not extinguished, it may cause a risk of burns to passengers on board, or may cause damage such as the fire spreading to an adjacent vehicle or building (W1).

A portable electric vehicle fire extinguishing device (1) may be provided to extinguish a fire occurring in an electric vehicle (V). The portable electric vehicle fire extinguishing system (ES) is provided to be portable and can be used to extinguish a fire in an electric vehicle (V) when necessary.

A mobile electric vehicle fire extinguishing system (ES) may include a compressible mobile electric vehicle fire extinguishing device (1) and a storage case (100) configured to accommodate the mobile electric vehicle fire extinguishing device (1). More specifically, the mobile electric vehicle fire extinguishing device (1) may be compressed and accommodated in the storage case (100). A user may carry the storage case (100) accommodating the mobile electric vehicle fire extinguishing device (1), and when a fire occurs in the electric vehicle (V), the user may install the mobile electric vehicle fire extinguishing device (1) in the electric vehicle (V) to extinguish the fire in the electric vehicle (V). More specifically, the storage case (100) may be configured to accommodate a tubular water tank (200), a flame retardant cover (300), a water injection hose (500), and a fire extinguishing liquid injection unit (400) described below.

The following is a more detailed explanation with reference to the drawings.

FIG. 2 is a conceptual diagram illustrating a mobile electric vehicle fire extinguishing device (1) illustrated in FIG. 1 covered on an electric vehicle (V). FIG. 3 is a conceptual diagram illustrating a tubular water tank (200) of a mobile electric vehicle fire extinguishing device (1) illustrated in FIG. 2 filled with water (W1). FIG. 4 is a conceptual diagram illustrating a fire extinguishing liquid injection device (700) inserted into a fire extinguishing space (200S) of a mobile electric vehicle fire extinguishing device (1) illustrated in FIG. 3. FIG. 5 is a conceptual diagram illustrating a fire extinguishing by spraying water (W1) onto a flame retardant cover (300) of a mobile electric vehicle fire extinguishing device (1) illustrated in FIG. 4.

Referring to FIGS. 2 to 5, a mobile electric vehicle fire extinguishing device (1) according to one embodiment of the present invention is described.

The mobile electric vehicle fire extinguishing device (1) may include a tubular water tank (200), a flame retardant cover (300), a water injection hose (500), a fire retardant liquid injection part (400), and a gas discharge hose (600), as shown in FIG. 2. At this time, the gas discharge hose (600) may be omitted as needed. At this time, the tubular water tank (200), the flame retardant cover (300), the water injection hose (500), the fire retardant liquid injection part (400), and the gas discharge hose (600) are each configured to be compressible, so that the volume can be minimized, as shown in FIG. 1.

The tubular tank (200) can be transformed into a compressed state and an expanded state in which water (W1) is filled inside. The tubular tank (200) is connected to a water injection hose (500) so that the water (W1) supplied through the water injection hose (500) is filled inside, thereby being expanded. At this time, the water injection hose (500) is connected to a fire extinguisher (not shown) so that water (W1) can be supplied to the tubular tank (200). As shown in FIG. 3, the tubular tank (200) can be configured so that at least a part of the electric vehicle (V) is accommodated in a fire extinguishing space (200S) formed by forming an annular shape and surrounding the ground when in an expanded state.

More specifically, as illustrated in FIG. 3, the tubular tank (200) may form a kind of wall when in an expanded state. The wall formed by the tubular tank (200) may be formed in a square frame shape with one corner open. Furthermore, if necessary, the tubular tank (200) may be formed with an opening/closing portion (not illustrated) that can open/close one corner with one side open. When the opening/closing portion is formed, the tubular tank (200) may be more easily compressed. Unlike the prior art that generally requires lifting a vehicle and placing it in a tank in order to submerge a vehicle, the tubular tank (200) according to the present invention forms a wall surrounding the vehicle, thereby forming a tank that surrounds the vehicle without moving the vehicle. In particular, since the tubular water tank (200) according to one embodiment of the present invention having an opening and closing portion has a square frame shape with one corner open, it is possible to form a water tank that surrounds a vehicle from the side without having to pass the tubular water tank (200) over the vehicle where a fire has occurred.

A leak-blocking membrane (not shown) is formed on the lower inner surface of the tubular water tank (200) to primarily block leakage of the disaster prevention liquid (W2) filled in the tubular water tank (200). In addition, the wall is pressed against the ground by the load of the water (W1) injected into the wall, thereby secondarily blocking leakage of the disaster prevention liquid (W2). Furthermore, the tubular water tank (200) may include a water tank body (210) configured to protrude from the ground and a deformable pad (220) coupled to a side of the water tank body (210) facing the ground, and when the ground is uneven, the pad (220) in contact with the ground is deformed, thereby sealing the space between the ground and the pad (220), thereby thirdly blocking leakage of the disaster prevention liquid (W2). The pad (220) may include, for example, silicone.

Additionally, the tank body (210) may include an inner liner (not shown), an outer material (not shown), and a coating (not shown) to have durability and heat resistance. The inner liner may be usually made of synthetic rubber (e.g., EPDM, SBR) or polyurethane. These materials have excellent resistance to water (W1) and chemicals (W1) and can reduce internal friction to facilitate the flow of water (W1). The outer material may be made of high-strength polyester, nylon, or aramid fibers (e.g., Kevlar). These fibers can withstand high pressure and protect against external physical damage (W1). A coating may be applied to the outside of the outer material to increase chemical resistance or heat resistance. The coating may be made of polyurethane or silicone.

Generally, the battery pack (BP) of an electric vehicle (V) is positioned at a height of about 70 cm from the ground, so the height of the tubular water tank (200) can be set so that the battery pack (BP) of the electric vehicle (V) can be sufficiently submerged. In other words, as shown in FIG. 4, the height (H1) of the tubular water tank (200) from the ground can be higher than the height (H2) of the battery pack (BP) from the ground so that the battery pack (BP) of the electric vehicle (V) can be submerged in the disaster prevention liquid (W2).

The tubular tank (200) can form a more solid tank by stacking multiple unit tubes vertically, but is not limited thereto.

The water injection hose (500) is configured to be connected to the tubular tank (200) and fill the inside of the tubular tank (200) with water (W1), and may be compressible. The water injection hose (500) may be configured of a material similar to that of the tubular tank (200). Accordingly, when the water injection hose (500) is compressed, instead of maintaining a circular cross-section, the water injection hose (500) may be folded so that the facing inner surfaces come into contact with each other, like a fire hose. A water injection hose cover (501) may be provided to cover an opening formed at one end of the water injection hose (500) connected to the tubular tank (200) and the other end on the opposite side. For example, after the injection of water (W1) into the tubular water tank (200) is completed, the opening of the water injection hose (500) can be blocked with a water injection hose cover (501) to prevent water (W1) from escaping from the tubular water tank (200) through the water injection hose (500).

The flame retardant cover (300) can be coupled to the tubular tank (200) to cover the opening formed in the tubular tank (200) to cover the fire extinguishing space (200S). Through this, the front, back, left, and right sides of the fire extinguishing space (200S) can be covered by the tubular tank (200), the lower side of the fire extinguishing space (200S) can be covered by the ground, and the upper side of the fire extinguishing space (200S) can be covered by the flame retardant cover (300). Accordingly, the fire extinguishing space (200S) can be sealed to the outside, so that the supply of oxygen to the fire extinguishing space (200S) can be blocked. That is, the flame retardant cover (300) can be configured to block the supply of oxygen to the electric vehicle (V) and extinguish a fire.

The flame retardant cover (300) may be positioned on the opposite side of the tubular tank (200) facing the ground. That is, the flame retardant cover (300) may be positioned on the upper side of the tubular tank (200). Since flames tend to rise, the flame retardant cover (300) may be positioned on the upper side, thereby being positioned on the upper side of the flame. As described below, the flame retardant cover (300) may be moved downward by its own weight or by a sprayed liquid sprayed on the flame retardant cover (300), thereby effectively hindering the growth of the flame.

The flame retardant cover (300) may include at least one of carbon fiber or glass fiber to have flame resistance. Furthermore, the flame retardant cover (300) may be a type of fabric, so that it may be easily folded or deformed into a shape. Accordingly, as described above, it may be easily compressed when compression is required.

The extinguishing liquid injection part (400) may be communicated with the inner side of the flame retardant cover (300) to inject the extinguishing liquid (W2) for lithium batteries into the extinguishing space (200S). The extinguishing liquid injection part (400) may be a type of deformable tube, as illustrated in FIG. 2. That is, the extinguishing liquid injection part (400) may extend from the flame retardant cover (300) toward the outer side of the extinguishing space (200S). Accordingly, the inner surface of the extinguishing liquid injection part (400) may guide the movement of the extinguishing liquid injection device (700) into the extinguishing space (200S). However, if necessary, the extinguishing liquid injection part (400) may be a hole. In other words, through the liquid injection unit (400), the liquid injection device (700) can be moved toward the electric vehicle (V) as shown in FIG. 4, and the liquid injection device (700) can be injected into the fire extinguishing space (200S) through the liquid injection device (700).

Furthermore, the fire retardant injection unit (400) may be configured to be compressible. The fire retardant injection unit (400) may be formed of a material similar to the flame retardant cover (300).

A fire retardant injection part cover (401) may be provided to cover the opposite end of the side facing the flame retardant cover (300) of the fire retardant injection part (400). The fire retardant injection part cover (401) can prevent foreign substances (W1) from penetrating through the fire retardant injection part (400).

The gas discharge hose (600) may be connected to the flame retardant cover (300) so as to be in communication with the inside of the flame retardant cover (300), as shown in FIG. 2. The gas discharge hose (600) may be configured to be compressible. The gas discharge hose (600) may be formed of a material similar to the flame retardant cover (300). Through the gas discharge hose (600), gas generated in the fire extinguishing space (200S) may be induced and discharged. If a fire occurs in the battery, hydrogen fluoride or hydrogen sulfurous acid may be generated. Since hydrogen fluoride or hydrogen sulfurous acid is a gas harmful to the human body, it is necessary to move these gases to a place far away from the user and discharge them so that they do not affect the user. However, the gas discharge hose (600) may be configured to be compressed at the beginning of fire suppression so that the gas cannot pass through, and thus, the flame retardant cover (300) may help block oxygen. Here, the compression of the gas discharge hose (600) may mean that the inner surfaces are in contact with each other. However, if the fire progresses to a certain extent and more gas is generated in the fire extinguishing space (200S) or the flame retardant cover (300) moves downward, and the volume of the fire extinguishing space (200S) is reduced, the gas discharge hose (600) may be decompressed and the gas may be discharged through the gas discharge hose (600).

A filter (610) may be positioned inside the gas discharge hose (600) to filter out hydrogen fluoride or hydrogen sulfite (610).

A fire extinguishing liquid injection device (700) configured to penetrate the fire extinguishing liquid injection part (400) of the mobile electric vehicle fire extinguishing device (1) described above and configured to inject fire extinguishing liquid (W2) for a lithium-based battery into a fire extinguishing space (200S) may be provided. The fire extinguishing liquid injection device (700) may spray the fire extinguishing liquid (W2) for a lithium-based battery into the lower portion of the electric vehicle (V). Since a battery may be located at the lower portion of the electric vehicle (V), the fire extinguishing liquid injection device (700) may spray the fire extinguishing liquid (W2) directly onto the battery. The fire extinguishing liquid injection device (700) may be connected to a fire extinguishing liquid (W2) tank (not shown) that stores the fire extinguishing liquid (W2) for a lithium-based battery. Here, the fire extinguishing liquid (W2) tank may be buried underground in a parking lot.

In addition, the fire prevention liquid (W2) for a lithium battery according to one embodiment of the present invention may include a sodium compound (W1), vanadium carbide, cerium oxide, manganese, and graphite. Here, the sodium compound (W1) and manganese can form a physical film (W1) between the lithium battery and the air and block the air, vanadium carbide and graphite can neutralize fluorine-based toxic substances (W1) such as hydrogen fluoride (HF) and phosphoryl fluoride (POF3) generated when a lithium battery catches fire, and cerium oxide can suppress a chemical exothermic reaction, thereby extinguishing a fire occurring in a lithium battery.

The sodium compound (W1) may include at least one of, but is not limited to, sodium chloride (NaCl), sodium carbonate (Na2CO3), sodium bicarbonate (NaHCO3), and sodium hydroxide (NaOH).

The method for extinguishing a fire in an electric vehicle (V) using the mobile electric vehicle fire extinguishing system (ES) described above is described. The method for extinguishing a fire in an electric vehicle (V) can follow the order of FIGS. 1 to 5.

First, as shown in Fig. 1, when it is confirmed that a fire has broken out in an electric vehicle (V), a portable electric vehicle fire extinguishing device (1) can be taken out from the storage case (100) and thrown toward the electric vehicle (V).

As shown in Fig. 2, the positions of each component of the thrown mobile electric vehicle fire extinguishing device (1) can be well aligned. At this time, the tubular water tank (200) can be positioned to surround the electric vehicle (V). At this time, the pad (220) can be positioned to be in close contact with the ground, and the flame retardant cover (300) can be positioned to cover the upper side of the electric vehicle (V). Since the oxygen supply to the flame is blocked by the flame retardant cover (300), the fire can be extinguished to some extent.

As shown in Fig. 3, by connecting a water injection hose (500) to a fire extinguisher, the inside of a tubular water tank (200) can be filled with water (W1). The tubular water tank (200) is in an expanded state and can expand upward.

As shown in FIG. 4, when the tubular tank (200) is expanded to the maximum, the tubular tank (200) can be in close contact with the ground. At this time, the height of the tubular tank (200) can be higher than the height of the battery pack (BP). Through the extinguishing liquid injection part (400) of the flame retardant cover (300), the end of the extinguishing liquid injection device (700) can be moved to the lower part of the vehicle. When the extinguishing liquid (W2) is sprayed to the lower part of the vehicle through the extinguishing liquid injection device (700), the extinguishing liquid (W2) can be sprayed and filled in the fire extinguishing space (200S). At this time, the extinguishing liquid (W2) can be sprayed in the fire extinguishing space (200S) to the extent that the battery or the battery pack (BP) is submerged. Since the height (H1) of the tubular tank (200) can be greater than or equal to the height (H2) of the battery pack (BP), even if the fire retardant liquid (W2) submerges the battery pack (BP), the fire retardant liquid (W2) may not overflow the tubular tank (200). Even if it overflows the tubular tank (200), since a flame retardant cover (300) is positioned on the upper side of the tubular tank (200), the fire retardant liquid (W2) can be prevented from moving to the outside of the fire extinguishing space (200S).

As illustrated in FIG. 5, a sprinkler (SC) may burst from the upper side of the flame retardant cover (300), or a user may directly spray the spray liquid onto the upper side of the flame retardant cover (300). When the sprinkler (SC) bursts, the sprinkler spray liquid (W3) may be sprayed from the sprinkler (SC) and positioned on the upper side of the flame retardant cover (300). The flame retardant cover (300) may move downward due to the weight of the sprinkler spray liquid (W3). Accordingly, the volume of the fire extinguishing space (200S) may be reduced, and the volume occupied by the fire extinguishing liquid (W2) in the fire extinguishing space (200S) may be increased. As the volume of the fire extinguishing space (200S) is reduced, harmful gases generated by a fire may be moved farther away along the gas discharge hose (600). At this time, the gas passing through the gas discharge hose (600) can be purified by a filter (610) located inside the gas discharge hose (600) and discharged to the outside of the gas discharge hose (600).

Unless explicitly stated otherwise, the embodiments described above may be combined with other embodiments. Alternatively, combinations between embodiments may be considered possible unless one embodiment is explicitly restricted from being combined with another embodiment. Combinations of one embodiment with another embodiment are considered to be disclosed in this document.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto, and various embodiments are possible within the scope equivalent to the technical idea of the present invention and the scope of the patent claims to be described below by a person skilled in the art to which the present invention pertains.

V: Electric vehicle
BP: Battery Pack
ES: Mobile electric fire extinguishing system
1: Mobile electric fire extinguishing device
100: Storage Case
200: Tubular tank
200S: Digestive space
210: Tank body
220: Pad
300: Flame retardant cover
400: Disaster prevention liquid injection part
401: Disaster prevention liquid injection cover
500: Water injection hose
501: Water injection hose cover
600: Gas discharge hose
610: Filter
W1: Water
W2: Disaster prevention solution for lithium batteries
SC: Spring Cooler
W3: Spring cooler spray
700: Disaster prevention liquid injection device

Claims (10)

As a compressible, portable electric fire extinguishing device,
A tubular water tank which is deformable into a compressed state and an expanded state filled with water on the inside, and which is formed into an annular shape when in the expanded state so as to surround the fire extinguishing space together with the ground so that at least a part of the electric vehicle is accommodated therein;
A flame retardant cover coupled to the tubular tank to cover an opening formed in the tubular tank to cover the digestion space so as to block the supply of oxygen to the digestion space;
A compressible water injection hose configured to be connected to the tubular tank and to fill the inside of the tubular tank with water;
A compressible fire retardant solution injection unit, which is connected to the inner side of the fire retardant cover and communicates with the inner side of the fire retardant cover to inject a fire retardant solution for lithium batteries into the fire extinguishing space; and
A compressible gas discharge hose is coupled to the flame retardant cover so as to be in communication with the inner side of the flame retardant cover,
The above flame retardant cover,
Located on the opposite side of the tube-shaped tank facing the ground,
A mobile electric vehicle fire extinguishing device that is compressed by being combined with the tubular tank when the tubular tank is in the compressed state. In the first paragraph,
The above tubular tank
A tank body configured to protrude from the above ground; and
A mobile electric vehicle fire extinguishing device coupled to the ground-facing side of the above tank body and including a deformable pad. In the first paragraph,
A mobile electric vehicle fire extinguishing device in which the height of the tubular tank from the ground is greater than the height of the battery pack from the ground so that the battery pack of the electric vehicle can be immersed in the fire extinguishing liquid. delete In the first paragraph,
A mobile electric vehicle fire extinguishing device wherein the flame retardant cover comprises at least one of carbon fiber or glass fiber to have flame retardancy. delete In the first paragraph,
A mobile electric vehicle fire extinguishing device wherein the above gas discharge hose is configured to be compressible. In the first paragraph,
A mobile electric vehicle fire extinguishing device further comprising a filter positioned inside the gas discharge hose to filter hydrogen fluoride or hydrogen sulfite. The mobile electric vehicle fire extinguishing device according to Article 1; and
A fire extinguishing fluid injection device configured to penetrate the fire extinguishing fluid injection part of the above-mentioned mobile electric vehicle fire extinguishing device and configured to inject the fire extinguishing fluid for the lithium battery into the fire extinguishing space,
The above lithium battery fire extinguishing solution is a mobile electric vehicle fire extinguishing system containing lime powder, sodium compound, vanadium carbide, cerium oxide, manganese, and graphite. In Article 9,
A mobile electric vehicle fire extinguishing system further comprising a storage case configured to accommodate all of the above tubular tank, the flame retardant cover, the water injection hose and the fire extinguishing liquid injection port.

Images