KR102682291B1 - System for extinguishing fire of automobile and method thereof - Google Patents

Abstract

The present invention relates to a fire extinguishing system and method for an electric vehicle that, when a fire occurs in an electric vehicle, extinguishes the fire in the electric vehicle by shielding the entire electric vehicle from the outside and releasing a fire extinguishing agent into the space where the electric vehicle is shielded. The fire extinguishing system for an electric vehicle according to the present invention includes a plurality of block units installed to surround the exterior of an electric vehicle in which a fire occurs and provided with a chamber into which a fire extinguishing agent is injected; an injection port formed in communication with the chamber on the rear surface of one or more of the plurality of block parts through which a fire extinguishing agent is injected; an outlet formed in a lower portion of the front surface of each of the block portions to communicate with the chamber and discharge the fire extinguishing agent injected into the chamber toward the electric vehicle; A plurality of liquid transfer ports located at lower sides of each of the block units that communicate with chambers of other block units adjacent to the side and transfer the fire extinguishing liquid injected into the chamber to the chambers of other block units; And, a fire extinguishing agent supply unit that supplies a fire extinguishing agent through the injection port.

Description

Fire extinguishing system for electric vehicles and method for extinguishing electric vehicles using the same {SYSTEM FOR EXTINGUISHING FIRE OF AUTOMOBILE AND METHOD THEREOF}

The present invention relates to a device for extinguishing a fire in an electric vehicle. More specifically, when a fire occurs in an electric vehicle, the entire electric vehicle is shielded from the outside and a fire extinguishing agent is discharged into the space where the electric vehicle is shielded. It relates to a fire extinguishing system and method for an electric vehicle that extinguishes a fire.

In general, electric vehicles (E-Mobility), unlike general internal combustion engine mobility devices, are composed of batteries and power conversion devices. The battery is an energy storage device, and the power conversion device is a device that converts the electric energy of the battery to generate the necessary driving force. This electric energy is used to drive the pump to move the electric vehicle.

Unlike conventional internal combustion engine mobility devices, these electric vehicles have the advantage of being eco-friendly, but if a fire occurs due to external shock or internal short circuit, the battery burns down completely, making it difficult to extinguish the fire.

Specifically, when a battery cell is split due to a collision, etc., more heat is generated due to a 'thermal runaway phenomenon', that is, a short circuit in the battery, causing a chain reaction of fire, and more heat is generated in adjacent cells, leading to a chain explosion.

Therefore, as the number of electric vehicles is expected to increase in the future, there is a need for technology that can more quickly and effectively extinguish initial fires occurring in the batteries of electric vehicles.

Korean Patent No. 10-2197265 Korean Patent No. 10-2416107 International Publication WO2018/222046 German Patent Publication DE102019003289

The present invention is intended to solve the above problems, and the problem to be solved by the present invention is to provide a fire extinguishing system and method for an electric vehicle that can be installed without being limited to the type and size of the electric vehicle.

In addition, another problem to be solved by the present invention is to provide a fire extinguishing system and method for an electric vehicle that is easy to carry, does not take a long time to install, and can minimize environmental pollution by recovering the used fire extinguishing agent. there is.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the description below.

A fire extinguishing system for an electric vehicle according to the present invention for achieving the above object includes a plurality of block units installed to surround the exterior of an electric vehicle in which a fire occurs and provided with a chamber into which a fire extinguishing agent is injected; an injection port formed on the rear surface of at least one of the plurality of block parts to communicate with the chamber and through which a fire extinguishing agent is injected; an outlet formed in a lower portion of the front surface of each of the block portions to communicate with the chamber and discharge the fire extinguishing agent injected into the chamber toward the electric vehicle; A plurality of liquid transfer ports at lower sides of each of the block units that communicate with chambers of other block units adjacent to the side and transfer the fire extinguishing liquid injected into the chamber to the chambers of other block units; And, a fire extinguishing agent supply unit that supplies a fire extinguishing agent through the injection port.

The block portion may be made of a flexible and heat-resistant material that can be expanded by the fire extinguishing agent injected into the chamber.

The block portion is made up of an 'L' shape consisting of a horizontal portion that is seated on the road or floor surface and a vertical portion that extends vertically upward to the rear or front of the horizontal portion, and the horizontal portion is made of a hard, high heat-resistant material, and the vertical portion is The unit may be made of a flexible, highly heat-resistant material that can be expanded by the fire extinguishing agent flowing into the chamber.

The front surface of the block portion may be coated with a heat-resistant reinforcing layer having high heat resistance.

The fire extinguishing system of an electric vehicle according to another form of the present invention may further include a fire extinguishing agent portion containing a solid fire extinguishing agent that performs a fire extinguishing action while being dissolved by the fire extinguishing agent supplied through the inlet.

The fire extinguishing system for an electric vehicle according to another form of the present invention is formed at the lower end of the front surface of the block portion to be in communication with the chamber to recover the fire extinguishing agent discharged into the space where the electric vehicle is located after the fire suppression of the electric vehicle is completed. It may further include a recovery port and a recovery pump connected to the recovery port, which suctions the fire extinguishing agent through the recovery port and transfers the fire extinguishing agent into the block portion.

The fire extinguishing system for an electric vehicle according to another form of the present invention is formed at the lower end of the front surface of the block portion to be in communication with the chamber to recover the fire extinguishing agent discharged into the space where the electric vehicle is located after the fire suppression of the electric vehicle is completed. It may further include a recovery port and an opening and closing unit that opens and closes the recovery port.

The opening and closing unit includes a valve plate installed in the recovery port to rotate about a hinge axis to open and close the recovery port, one end connected to the valve plate and the other end so that a person can operate the valve plate from outside the block unit. It may include an opening and closing operation member protruding to the outside through the rear surface of the block portion.

A friction pad having a plurality of protrusions may be installed on the bottom surface of the block portion.

A fire extinguishing system for an electric vehicle according to another form of the present invention includes a plurality of rings installed in the block portion for connection to other block portions, and a binder that wraps and supports the entire plurality of block portions through the rings. Additional bands may be included.

The fire extinguishing method for extinguishing a fire in an electric vehicle using the fire extinguishing system for an electric vehicle according to the present invention as described above includes,

(S1) installing a plurality of block units to surround the exterior of the electric vehicle in which a fire occurs;

(S2) supplying the fire extinguishing liquid supply unit into the chamber through the injection port of the block part;

(S3) transferring the fire extinguishing liquid supplied to the chamber to the chamber of another block unit through the liquid transfer port;

(S4) extinguishing the fire by discharging the fire extinguishing agent supplied to the chamber into the space where the electric vehicle is located through the outlet of the plurality of block parts; and,

(S5) recovering the fire extinguishing agent after fire suppression is completed;

may include.

In step (S5), the fire extinguishing agent can be recovered into the chamber of the block unit through a recovery port formed in the lower part of the plurality of block units.

The fire extinguishing system of the present invention quickly supplies a large amount of fire extinguishing agent into the chambers of the plurality of block parts through the inlet of the block part, and supplies and fills the space where the electric vehicle is located with the fire extinguishing solution through the outlet of the plurality of block parts, thereby Fires can be extinguished quickly.

In addition, if all or part of the block is made of a flexible, high heat-resistant material, the volume of the block can be maintained in a contracted state before supplying the fire extinguishing liquid into the block, making it very easy to carry, and the fire extinguishing liquid is supplied through the injection port of the block. If this is done, the space that accommodates the electric vehicle that expands quickly and catches fire can be quickly partitioned.

The fire extinguishing system of the present invention has the advantage of minimizing environmental pollution because the extinguishing liquid used to extinguish a fire in an electric vehicle can be recovered and stored inside the block through the recovery port of the block, then purified and discharged.

1 is a plan view showing a fire extinguishing system for an electric vehicle according to an embodiment of the present invention.
Figure 2 is a longitudinal cross-sectional view from the front showing the fire extinguishing system of an electric vehicle according to an embodiment of the present invention.
Figure 3 is a longitudinal cross-sectional view showing the fire extinguishing system of an electric vehicle according to an embodiment of the present invention.
Figure 4 is an enlarged longitudinal cross-sectional view of a portion of the fire extinguishing system of an electric vehicle according to an embodiment of the present invention.
Figure 5 is a longitudinal cross-sectional view showing an embodiment of the configuration for recovering the fire extinguishing agent of the fire extinguishing system of an electric vehicle according to an embodiment of the present invention.
Figure 6 is a longitudinal cross-sectional view showing another embodiment of the configuration for recovering fire extinguishing agent from the fire extinguishing system of an electric vehicle according to an embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, and the present embodiments are provided to ensure that the disclosure of the present invention is complete and to those skilled in the art to which the present invention pertains. It is provided to fully inform the scope of the present invention, and the present invention is defined only by the scope of the claims.

The terms used in this specification are for describing embodiments and are not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other elements in addition to the mentioned elements. Like reference numerals refer to like elements throughout the specification, and “and/or” includes each and every combination of one or more of the referenced elements. Although “first”, “second”, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

The term “horizontal direction” used in the following description means the front, rear, left or right direction with the upper or lower position unchanged, and the term “vertical direction” used in the following description means The term refers to the upper or lower direction without changing the position of the anterior side, posterior side, left or right direction.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless clearly specifically defined.

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

1 to 5, the fire extinguishing system of an electric vehicle according to an embodiment of the present invention includes a block unit 100 provided with a chamber 101, and a fire extinguishing agent is injected into the chamber 101 of the block unit 100. an injection port 110, an outlet 120 for discharging the fire extinguishing solution injected into the chamber toward the space where the electric vehicle 1 is located, and an outlet 120 discharging the fire extinguishing solution injected into the chamber 101 of the block unit 100 to another block unit. A liquid transfer port 130 that delivers the liquid to the chamber 101 of (100), a fire extinguishing liquid supply unit that supplies the fire extinguishing liquid through the injection port 110, and a recovery liquid that recovers the fire extinguishing liquid from the front lower part of the block unit 100. Includes sphere (140).

In order to facilitate understanding of the configuration and operation of the fire extinguishing system of an electric vehicle according to the present invention, in the following description, the side facing the electric vehicle 1 is defined as the front with respect to the direction of the block unit 100, and the opposite side is defined as the front. It is defined and explained backwards.

Additionally, an electric vehicle refers to an eco-friendly mobile device that is powered by electricity. Specifically, it refers to a mobile device that generates driving force by supplying electric energy from a battery to an electric pump.

The block unit 100 is installed to surround the exterior of the electric vehicle 1 where a fire occurs and functions as a barrier to shield the electric vehicle 1. The block portion 100 is comprised of a plurality of blocks, and is laterally connected to each other, dividing a space similar to a water tank and surrounding the outside of the electric vehicle 1. The height of the block unit 100 may be designed to be approximately 1 to 2 m, but may vary depending on the height of the electric vehicle 1 where the fire occurs.

In order for the block unit 100 to maintain a stable standing position on the road or floor, the block unit 100 may be formed in an approximately 'L' shape when viewed from the side. That is, the block portion 100 may be composed of a horizontal portion 102 that is seated on the road surface or floor, and a vertical portion 103 that extends vertically upward to the rear or front of the horizontal portion 102. In order to facilitate portability, the entire block portion 100 may be made of a flexible, high heat-resistant material that can be contracted and expanded by air or fire extinguishing agent. However, unlike this, the horizontal portion 102 of the block portion 100 is deformed in shape. It may be made of a rigid, high-heat-resistant material, and only the vertical portion 103 may be made of a flexible, high-heat-resistant material capable of shrinking and expanding.

In this way, when the horizontal part 102 is made of a hard material and only the vertical part 103 is made of a flexible material, it is easy to install the horizontal part 102 on the road surface and connect them to each other, so quick installation is possible and stable bearing capacity on the road surface is possible. can be provided. In addition, since it is possible to transport and store the vertical portion 103 in a contracted state, the advantages of being very easy to carry, store, and handle can be obtained at the same time.

It is preferable that the plurality of block parts 100 are laterally connected to each other by a binding device and are in close contact to prevent the fire extinguishing agent from leaking to the outside. For this purpose, a plurality of rings 161 may be installed on the block part 100. . In addition, the binding band 163 can support the entire plurality of block portions 100 by wrapping them around the ring 161. In addition, a plurality of block parts 100 adjacent to each other may be connected to each other by fastening a binding tool 162 such as a cable tie through the ring 161. In addition, the plurality of block parts 100 may be connected in close contact with each other using various known binding devices.

The block portion 100 is made of a highly heat-resistant material that is not damaged or deformed even by the high heat and flame of a fire. The block portion 100 may be made of a hard, high heat-resistant material that has a constant shape without deformation, but may be made of a flexible, high heat-resistant material that can expand by the fire extinguishing agent injected into the chamber 101 of the block portion 100. It can be done. In particular, since the front surface of the block portion 100 is directly exposed to the high heat and flame of the fire, very high heat resistance is required, so the front surface of the block portion 100 must be coated with a heat-resistant reinforcing layer 105 having high heat resistance. You can.

The space surrounded by the plurality of block units 100 is filled with fire extinguishing agent, and since the block unit 100 is installed on a road surface or similar environment, it prevents the block unit 100 from being pushed out by the pressure of the fire extinguishing solution. To this end, a friction pad 150 having a plurality of protrusions 151 may be installed on the bottom surface of the block portion 100.

The interior of the chamber 101 of the block unit 100 is a storage space where the fire extinguishing agent (e.g., water) injected through the injection port 110 formed on the upper rear surface of the block unit 100 is temporarily stored. It communicates with (110), the outlet 120, the liquid transfer port 130, and the recovery port 140. When the fire extinguishing liquid is injected into the block unit 100, the internal air is smoothly discharged and the exhaust port 170 is installed in the block unit 100 to penetrate to the outside so that the fire extinguishing liquid can flow smoothly into the chamber 101. can be formed.

The injection port 110 may not be formed in all of the plurality of block portions 100, but may be provided in one or more of the plurality of block portions 100, or in the block portion 100 in which the injection port 110 is not formed. The chamber 101 can receive extinguishing liquid from the adjacent block unit 100 through the liquid transfer port 130.

The discharge port 120 is formed in communication with the chamber 101 at the lower portion of the front surface of each of the plurality of block portions 100, and discharges the fire extinguishing agent injected into the chamber 101 toward the electric vehicle 1. It is desirable that the discharge port 120 has a long hole shape left and right so that the fire extinguishing agent can be quickly supplied to the space formed by the block portion 100.

In addition, if the fire extinguishing liquid is discharged directly through the outlet 120, the supply of the fire extinguishing liquid to the other block unit 100 through the liquid transfer pipe may not be smooth, so the height of the discharge port 120 and the liquid transfer port 130 is approximately It is preferable that they are formed at the same height.

The recovery port 140 is formed in communication with the chamber 101 at the lower end of the front surface of the block portion 100 to collect the fire extinguishing agent discharged into the space where the electric vehicle 1 is located after the fire suppression of the electric vehicle 1 is completed. It functions to allow recovery into the block unit 100. In order to allow the fire extinguishing agent to flow smoothly through the recovery port 140, the recovery port 140 may be formed to slope downwardly toward the rear.

In order to quickly recover the fire extinguishing agent used through the recovery port 140 into the block unit 100 or a separate recovery container, the fire extinguishing agent is sucked through the recovery port 140 as shown in FIGS. 1 and 5. Thus, a recovery pump 142 that transfers the fire extinguishing agent can be installed inside the chamber 101 of the block unit 100 or to a separate recovery container (not shown).

The recovery pump 142 forcibly suctions the fire extinguishing liquid through the recovery port 140 and discharges it into the chamber 101 of the plurality of block units 100 through the drain pipe 143 for recovery or separate recovery. It is configured to be discharged into a bin.

If the used fire extinguishing solution is allowed to naturally flow into the recovery port 140 without configuring the recovery pump 142, the fire extinguishing agent will not flow in through the recovery port 140 while extinguishing the fire of the electric vehicle 1. In order to prevent the fire extinguishing agent from flowing in through the recovery port 140 only after fire suppression is completed, the recovery port 140 may be opened and closed by an opening and closing unit.

As shown in FIG. 6, the opening and closing unit is installed to rotate around the hinge axis 146 in the recovery port 140, and includes a valve plate 145 that opens and closes the recovery port 140, and a block portion 100. An opening/closing operation member (147) with one end connected to the valve plate (145) and the other end protruding to the outside through the rear surface of the block portion (100) so that a person can rotate the valve plate (145) from the outside. It can be included.

The opening/closing operation member 147 may be made of a lever or rod in the form of a wire or a long bar. The valve plate 145 or the opening and closing operation member 147 is elastically supported against the block unit 100 by a spring not shown in the drawing, so that in a situation where a person does not operate the opening and closing operation member 147, the valve plate ( It is desirable that 145) be able to stably maintain the recovery port 140 in a closed state. In this embodiment, the opening and closing operation member 147 consists of a lever that rotates the valve plate 145 forward by a user's pushing or pulling motion.

On the side of the block part 100, there is a liquid transfer port for supplying water, which is a fire extinguishing liquid, from the block part 100 in which the injection port 110 is formed to the inside of the chamber 101 of the other block part 100 in which the injection port 110 is not formed. (130) is formed. As shown in FIG. 4, the liquid transfer port 130 may be made of a pair of male and female connection pipes. In order to facilitate the connection of the liquid transfer port 130 and prevent the liquid transfer port 130 from separating or leaking the fire extinguishing liquid when the fire extinguishing liquid is delivered through the liquid transfer port 130, the liquid transfer port 130 has opposite polarity A magnetic fastener 132 made of magnets may be installed.

The fire extinguishing agent supply unit 200 is designed to supply fire extinguishing agent through the injection port 110, and can be configured using, for example, a fire extinguishing agent nozzle connected to a water tank of a fire hydrant or fire engine.

A digestive system with this configuration operates as follows.

If a fire occurs in the electric vehicle 1, a plurality of block parts 100 are installed to surround the outside of the electric vehicle 1. At this time, the liquid transfer ports 130 provided on the sides of the plurality of block units 100 are connected to each other.

When the block portion 100 is made of a flexible, high heat-resistant material that expands with fluid, when the fire extinguishing agent is injected into the block portion 100 through the injection port 110, it expands to form a wall.

When the fire extinguishing liquid supply unit 200 is connected to the injection port 110 of one block unit 100 to supply the fire extinguishing liquid, the fire extinguishing liquid is injected into the chamber 101 of the block unit 100. At this time, as described above, if the block portion 100 is made of a flexible, high heat-resistant material, the block portion 100 may expand with the fire extinguishing agent to form a wall.

The fire extinguishing liquid injected through the inlet 110 of the block unit 100 is filled from the bottom of the chamber 101, and some of it is discharged to the outside through the outlet 120 at the bottom of the front surface, allowing the electric vehicle 1 to be positioned. The interior of the space is gradually filled to perform a fire extinguishing effect, and the remaining portion is filled into the chamber 101 of the other block portion 100 disposed on the side through the liquid transfer port 130.

In this way, the fire extinguishing liquid filled inside the plurality of block parts 100 is sequentially supplied to the other block parts 100 through the liquid transfer port 130, so that the chamber 101 of the plurality of block parts 100 is filled with the fire extinguishing liquid. filled. The fire extinguishing agent filled inside the plurality of block units 100 gradually fills the space where the electric vehicle 1 is located through each outlet 120 to extinguish the fire of the electric vehicle 1.

When the fire suppression of the electric vehicle 1 is completed, a person from outside operates the opening/closing operation member () to rotate the valve plate 145 to open the recovery port 140. When the recovery port 140 is opened, the fire extinguishing liquid inside the space where the electric vehicle 1 is accommodated flows into the chamber 101 of the block unit 100 through the recovery port 140 and is stored.

Since the fire extinguishing liquid used to extinguish the electric vehicle (1) is contaminated with various foreign substances, there is a possibility of environmental pollution if it is discharged directly to the outside. Therefore, it is desirable to recover the used fire extinguishing agent inside the chamber 101 of the plurality of block units 100 or transfer it to a separate recovery container and then transfer it to a purification facility to purify it and then discharge it.

The recovery pump 142 forcibly suctions the fire extinguishing liquid through the recovery port 140 and then discharges it into the chamber 101 of the plurality of block units 100 through the drain pipe 143 to recover it.

In addition, the fire extinguishing system of the present invention may further include a safety net 400 that covers the upper surface of the electric vehicle 1 while being fixed to the upper surface of the block portion 100 installed surrounding the electric vehicle 1. The safety net 400 covers the upper surface of the electric vehicle 1 to prevent components from flying out due to a fire or explosion of the electric vehicle 1.

The fire extinguishing system of the present invention as described above quickly supplies a large amount of fire extinguishing agent into the chamber 101 of the plurality of block parts 100 through the inlet 110 of the block part 100, and provides a plurality of block parts ( A fire in the electric vehicle 1 can be quickly extinguished by supplying and filling the space where the electric vehicle 1 is located with fire extinguishing liquid through the outlet 120 of 100).

In addition, when all or part of the block part 100 is made of a flexible, high heat-resistant material, the volume of the block part 100 can be maintained in a contracted state before supplying the fire extinguishing agent into the block part 100, making it very easy to carry. When the fire extinguishing agent is supplied through the inlet 110 of the block portion 100, it expands quickly and the space accommodating the electric vehicle 1 where the fire occurs can be quickly partitioned.

Meanwhile, as shown in FIG. 2, when water is injected as a fire extinguishing agent through the inlet 110, an inlet 110 is installed on one side of the inlet 110 or the outlet 120 in order to further improve fire extinguishing performance. A fire extinguishing agent unit 300 containing a solid fire extinguishing agent that acts on fire while being dissolved by the fire extinguishing agent supplied through the fire extinguishing agent may be installed.

The solid extinguishing agent may be at least one of salt, solid aerosol, or monobasic ammonium phosphate, and the extinguishing agent unit 300 may be made of a mesh or porous enclosure that accommodates the solid extinguishing agent.

Above, embodiments of the present invention have been described with reference to the attached drawings, but those skilled in the art will understand that the present invention is within the scope without departing from the technical spirit and technical scope of the present invention as set forth in the claims to be described later. It will be understood that various modifications and changes can be made to the present invention. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

100: block part 101: chamber
102: horizontal part 103: vertical part
105: heat-resistant reinforcing layer 110: injection port
120: outlet 130: liquid transfer port
132: magnetic fastener 140: recovery port
142: recovery pump 143: drain pipe
145: valve plate 146: hinge axis
147: Opening and closing operation member 150: Friction pad
151: projection 161: ring
162: Binding tool 163: Binding band
170: exhaust port 200: fire extinguishing fluid supply unit
300: Fire extinguishing agent unit 400: Safety net

Claims (12)

A plurality of block units installed to surround the exterior of the electric vehicle where a fire occurs and provided with a chamber into which a fire extinguishing agent is injected;
an injection port formed in communication with the chamber on the rear surface of one or more of the plurality of block parts through which a fire extinguishing agent is injected;
an outlet formed in a lower portion of the front surface of each of the block portions to communicate with the chamber and discharge the fire extinguishing agent injected into the chamber toward the electric vehicle;
A plurality of liquid transfer ports at lower sides of each of the block units that communicate with chambers of other block units adjacent to the side and transfer the fire extinguishing liquid injected into the chamber to the chambers of other block units;
A fire extinguishing agent supply unit that supplies a fire extinguishing agent through the injection port;
A recovery port formed at the lower end of the front surface of the block portion to communicate with the chamber to recover the fire extinguishing agent discharged into the space where the electric vehicle is located after the fire suppression of the electric vehicle is completed; and,
A recovery pump connected to the recovery port, sucks the extinguishing agent through the recovery port, and transports and recovers the extinguishing agent inside the chamber of the block portion;
A fire extinguishing system for an electric vehicle including. The fire extinguishing system of an electric vehicle according to claim 1, wherein the block portion is made of a flexible and heat-resistant material that can be expanded by a fire extinguishing agent injected into the chamber. The method of claim 1, wherein the block portion is formed in an 'L' shape consisting of a horizontal portion that is seated on the road surface or floor and a vertical portion that extends vertically upward to the rear or front of the horizontal portion, and the horizontal portion is hard and highly heat-resistant. A fire extinguishing system for an electric vehicle made of a flexible, highly heat-resistant material that can be expanded by the fire extinguishing agent flowing into the chamber. The fire extinguishing system for an electric vehicle according to claim 1, wherein the front surface of the block portion is coated with a heat-resistant reinforcing layer having high heat resistance. The fire extinguishing system of an electric vehicle according to claim 1, further comprising a fire extinguishing agent portion containing a solid fire extinguishing agent that performs a fire extinguishing action while being dissolved by the fire extinguishing agent supplied through the inlet. delete delete delete The fire extinguishing system for an electric vehicle according to claim 1, wherein a friction pad having a plurality of protrusions is installed on the bottom surface of the block portion. The fire extinguishing system of an electric vehicle according to claim 1, further comprising a plurality of rings installed on the block portion for connection to other block portions, and a binding band that wraps and supports the entire plurality of block portions through the rings. . A fire extinguishing method for extinguishing a fire in an electric vehicle using the fire extinguishing system for an electric vehicle according to any one of claims 1 to 5 and 9 to 10, comprising:
(S1) installing a plurality of block units to surround the exterior of the electric vehicle in which a fire occurs;
(S2) supplying the fire extinguishing liquid supply unit into the chamber through the inlet of the block part;
(S3) transferring the fire extinguishing liquid supplied to the chamber to the chamber of another block unit through the liquid transfer port;
(S4) extinguishing the fire by discharging the fire extinguishing agent supplied to the chamber into the space where the electric vehicle is located through the outlet of the plurality of block parts; and,
(S5) recovering the fire extinguishing agent after fire suppression is completed;
Including,
A fire extinguishing method for an electric vehicle in which the fire extinguishing agent is recovered into the chamber of the block unit through a recovery port formed in the lower part of the plurality of block units in the step (S5).
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