Battery Fire Suppression Device

Abstract

The present invention relates to a battery fire suppression device, and in particular, to prevent the temperature rise of the extinguishing agent that blocks thermal runaway of the battery by utilizing existing facilities of an aircraft, thereby enabling continuous and safe suppression of a battery fire and maintenance of the suppression state even with limited space and resources, the device comprises a suppression pouch member comprising: an outer pouch having a cylindrical shape with an open top surface; an inner pouch having a cylindrical shape smaller than the outer pouch and having an open top surface, disposed inside the outer pouch, and having a supply hole formed to communicate with the outer pouch; a extinguishing agent supply tube disposed between the outer pouch and the inner pouch such that the lower end is spaced apart from the bottom surface of the outer pouch and the upper end is positioned on the upper side of the outer pouch; and a extinguishing agent discharge hose disposed such that one end is positioned inside the inner pouch and the other end is positioned on the outside of the outer pouch, wherein the battery can be accommodated in the inner pouch with the extinguishing agent filled to a predetermined height within the outer pouch and through the extinguishing agent supply tube The present invention relates to a battery fire suppression device characterized by supplying fire extinguishing liquid to an external pouch and, in addition, being able to discharge fire extinguishing liquid from an internal pouch to the outside through the fire extinguishing liquid discharge hose.

Description

Technology Field

[0001] The present invention relates to a battery fire suppression device, and more specifically, to a device capable of effectively suppressing a battery fire and maintaining the suppression state by utilizing limited space and resources in a thermal runaway fire situation involving lithium-ion batteries, etc., that may occur inside an aircraft cabin. Background Technology

[0002] Generally, lithium-ion batteries are widely used in various portable electronic devices due to their high energy density and lightweight properties, and carrying them on board aircraft has also become common practice. However, these batteries can cause thermal runaway due to external impact, manufacturing defects, or overcharging, which can lead to fires accompanied by high-temperature flames, toxic gases, and smoke.

[0003] The interior of an aircraft is a confined space, making it difficult to respond immediately to fires and secondary hazards using standard fire suppression devices or conventional ventilation systems. In particular, in the event of a fire occurring during flight, on-site suppression capabilities and equipment by the crew are crucial, as a large number of passengers are on board in a closed space and ground response is impossible. Accordingly, there is a continuously being raised need for a dedicated device capable of safely suppressing battery fires on board.

[0004] To date, the only response to battery runaway fires occurring on aircraft has been to immerse the battery in a heat-resistant pouch filled with water. However, while this method may be effective for initial suppression, as the temperature of the water inside the pouch gradually rises, the cooling function deteriorates, making it difficult to effectively prevent the battery's continuous thermal runaway. Furthermore, there is a problem in that secondary risks are not sufficiently controlled because repeated cooling or the efficient evacuation of harmful gases is not taken into account. Prior art literature

[0005] Republic of Korea Published Utility Model No. 20-2024-0001099 'Glove Pouch for Suppressing Battery Fires' The problem to be solved

[0006] The present invention aims to solve the aforementioned problems by utilizing existing aircraft facilities to prevent the temperature rise of the extinguishing agent used to block thermal runaway of the battery, thereby providing a battery fire suppression device capable of continuously and safely suppressing a battery fire and maintaining the suppression state even with limited space and resources. means of solving the problem

[0007] The battery fire suppression device of the present invention for achieving the above objective comprises a suppression pouch member including an outer pouch having a cylindrical shape with an open top surface, an inner pouch having an open top surface and a cylindrical shape smaller than the outer pouch, disposed inside the outer pouch, and having a supply hole formed to communicate with the outer pouch, a fire extinguishing liquid supply tube disposed between the outer pouch and the inner pouch having a tube shape with its lower end spaced apart from the bottom surface of the outer pouch and its upper end positioned on the upper side of the outer pouch, and a fire extinguishing liquid discharge hose disposed such that one end is positioned inside the inner pouch and the other end is positioned on the outside of the outer pouch, thereby allowing a battery to be accommodated in the inner pouch with fire extinguishing liquid filled to a predetermined height within the outer pouch and the outer pouch, and in addition to supplying fire extinguishing liquid to the outer pouch through the fire extinguishing liquid supply tube, the fire extinguishing liquid can be discharged to the outside from the inner pouch through the fire extinguishing liquid discharge hose.

[0008] In addition, the outer pouch is equipped with a heat-sensing film that changes color according to the temperature of the extinguishing liquid filled inside, so that the supply of extinguishing liquid can be determined based on the color of the heat-sensing film.

[0009] Additionally, it may further include a gas discharge member comprising a harmful gas cover that can cover the upper side of the outer pouch and surround the upper part of the fire extinguishing liquid supply tube by being joined at the lower end along the upper circumference of the outer pouch and tightened at the upper end, and a gas discharge hose having one end located within the harmful gas cover and the other end located in an in-flight facility where suction force can be generated.

[0010] In addition, the above-mentioned suppression pouch member can be fixed to an in-flight facility through at least one of a fixing structure formed at the other end of the fire extinguishing liquid discharge hose and a pouch fixing device provided in the outer pouch.

[0011] Additionally, the suppression pouch member may further include a fire extinguishing liquid supply member comprising: a supply pouch that is formed in the shape of a tube with an open top surface and can be seated on the washbasin, and can receive water, which is a fire extinguishing liquid, from the faucet, wherein the upper end of the fire extinguishing liquid supply tube is positioned lower than the upper surface of the washbasin on the front side of the washbasin on which a washbasin bowl and a faucet are provided on the upper surface, and the supply pouch can be seated on the washbasin bowl and can receive water, which is a fire extinguishing liquid, from the faucet; and a fire extinguishing liquid supply hose, one end of which is positioned in the inner lower part of the supply pouch, and the other end of which is positioned inside the fire extinguishing liquid supply tube, passing over the front edge of the washbasin adjacent to the washbasin bowl. Effects of the invention

[0012] According to the present invention, a thermal runaway fire of a battery can be primarily prevented through the fire extinguishing liquid filled in the outer pouch and the inner pouch. When the temperature of the fire extinguishing liquid containing the battery rises, the supply of fire extinguishing liquid through the fire extinguishing liquid supply tube and the discharge of fire extinguishing liquid through the fire extinguishing liquid discharge hose can be carried out simultaneously, thereby preventing the temperature of the fire extinguishing liquid filled in the outer pouch and the inner pouch from rising and allowing the thermal runaway fire of the battery to be continuously suppressed.

[0013] In addition, hazardous gases generated during the battery suppression process can be prevented from spreading into the cabin through hazardous gas covers and gas exhaust hoses, and instead be vented to the outside through cabin equipment that allows for suction during flight, thereby preventing suffocation accidents caused by hazardous gases in a confined space.

[0014] Furthermore, the supply of fire extinguishing fluid through the fire extinguishing fluid supply tube can be achieved using the existing facility, such as a washbasin, via a fire extinguishing fluid supply member based on the siphon principle; thus, anyone can install it quickly, and since it operates without various electrical devices and utilizes existing facilities, battery fires can be continuously and safely suppressed even with limited space and resources. Brief explanation of the drawing

[0015] FIG. 1 is a schematic diagram showing the structure of a battery fire suppression device according to one embodiment of the present invention, FIG. 2 is a perspective view showing the appearance of a suppression pouch member according to one embodiment, FIG. 3 is a schematic diagram showing an example in which a suppression pouch member according to one embodiment is fixed to an in-flight facility through a pouch fixing device. FIGS. 4 to 6 are exemplary diagrams showing the process of suppressing a battery fire using a battery fire suppression device according to one embodiment of the present invention. FIG. 7 is an exemplary diagram showing an installation structure for discharging harmful gas through a washbasin in a battery fire suppression device according to one embodiment of the present invention. FIG. 8 is an exemplary diagram showing an installation structure for discharging harmful gas through a toilet in a battery fire suppression device according to another embodiment of the present invention. FIG. 9 is an exemplary diagram showing harmful gas and extinguishing liquid being discharged into a toilet in a battery fire suppression device according to another embodiment of the present invention. Specific details for implementing the invention

[0016] In this invention, by utilizing existing aircraft facilities to prevent the temperature rise of the extinguishing agent that blocks thermal runaway of the battery, thereby enabling continuous and safe suppression of battery fires and maintenance of the suppression state even with limited space and resources, the suppression pouch member comprises: an outer pouch having a cylindrical shape with an open top surface; an inner pouch having a cylindrical shape smaller than the outer pouch and having an open top surface, disposed inside the outer pouch, and having a supply hole formed to communicate with the outer pouch; a extinguishing agent supply tube disposed between the outer pouch and the inner pouch having a tubular shape, with its lower end spaced apart from the bottom surface of the outer pouch and its upper end positioned on the upper side of the outer pouch; and a extinguishing agent discharge hose disposed with one end positioned inside the inner pouch and the other end positioned on the outside of the outer pouch. The battery can be accommodated in the inner pouch with the extinguishing agent filled to a predetermined height within the outer pouch and the extinguishing agent supplied to the outer pouch through the extinguishing agent supply tube. In addition, a battery fire suppression device is proposed that is characterized by being able to discharge fire extinguishing liquid from an internal pouch to the outside through the aforementioned fire extinguishing liquid discharge hose.

[0017] The scope of the present invention is not limited to the embodiments described below, and various modifications may be made by those skilled in the art within the scope of the technical essence of the present invention.

[0018] Hereinafter, the battery fire suppression device of the present invention will be described in detail with reference to the attached FIGS. 1 to 9.

[0020] The battery fire suppression device of the present invention is a device for suppressing a fire in a battery (10), and below, the battery (10) is defined to include not only a portable battery (10) but also an electronic device including a battery (10). Furthermore, the present invention can block thermal runaway of the battery (10) by utilizing existing facilities, such as a washbasin (20) provided in a restroom, in environments where it is difficult to suppress a fire in a battery (10), such as an aircraft in operation, and basically includes a suppression pouch member (100).

[0021] The suppression pouch member (100) is configured to block the thermal runaway of the battery (10) by inserting the battery (10) which is undergoing thermal runaway into the fire extinguishing liquid filled inside, and to allow for the supply and discharge of the fire extinguishing liquid in preparation for a rise in the temperature of the fire extinguishing liquid. The fire extinguishing liquid in the present invention may be water that can be easily supplied through a washbasin (20), etc., and the following description is based on this premise, but is not necessarily limited thereto.

[0022] For example, the suppression pouch member (100) may include an outer pouch (110), an inner pouch (120), a fire extinguishing liquid supply tube (130), and a fire extinguishing liquid discharge hose (140) as shown in FIG. 1. The configuration of the suppression pouch member (100) described above is preferably made of a foldable waterproof material so that it can be stored in a confined space (e.g., a storage space formed inside a lower cabinet constituting a washbasin (20)) and used immediately. However, the following description is based on the premise that each component of the suppression pouch member (100) is unfolded.

[0023] The outer pouch (110) may be in the form of a container with an open top surface as shown in FIGS. 1 and 2, and may contain fire extinguishing liquid inside. For example, when the outer pouch (110) is placed on the ground, the top may be formed lower than the top surface of the washbasin (20), and at least some of the walls may be formed transparent so that the user can check the internal situation from the outside.

[0024] And the outer pouch (110) may be equipped with a fire extinguishing liquid temperature indicator that allows the user to easily know the temperature of the fire extinguishing liquid filled inside, as shown in FIG. 2. The fire extinguishing liquid temperature indicator may be, for example, a heat-sensing film (111). The heat-sensing film (111) may be configured to change color according to the temperature of the fire extinguishing liquid filled inside. For example, the heat-sensing film (111) may display blue when the fire extinguishing liquid is at room temperature, and as the temperature of the fire extinguishing liquid rises, the color may gradually change and display red when it reaches a limit temperature. Accordingly, the user can determine the temperature of the fire extinguishing liquid contained in the outer pouch (110) by observing the color change of the heat-sensing film (111), and determine whether to supply the fire extinguishing liquid through the fire extinguishing liquid supply tube (130) and discharge the fire extinguishing liquid through the fire extinguishing liquid discharge hose (140).

[0025] Additionally, the outer pouch (110) may be placed on the ground adjacent to the aircraft equipment and may be equipped with a pouch fixing device (112) that can be fixed to a washbasin (20) or toilet (30), which is one of the aircraft equipment. For example, as shown in FIG. 3, the washbasin (20) may have a lower cabinet door (24) on the lower side of the upper surface that can be opened toward the front to open and close the inner receiving space, and the pouch fixing device (112) can be inserted into the inner side of the opened lower cabinet door (24), and then, as the lower cabinet door (24) closes, the suppression pouch member (100) can be fixed to the front adjacent to the lower cabinet door (24). Therefore, when suppressing a fire in a battery (10) using a suppression pouch member (100), the suppression pouch member (100) can be effectively prevented from falling over or moving due to external shaking (e.g., shaking caused by aircraft operation).

[0026] As shown in FIGS. 1 and 2, the inner pouch (120) has an open top surface and forms a tube shape smaller than the outer pouch (110), and is positioned inside the outer pouch (110). For example, the inner pouch (120) may be formed to have a smaller width and lower height than the outer pouch (110), and may be positioned inside the outer pouch (110) such that its bottom surface is spaced apart from the bottom surface of the outer pouch (110). To this end, the inner wall of the outer pouch (110) and the outer wall of the inner pouch (120) may be connected through a connecting member, and a plurality of connecting members may be provided at predetermined intervals. And the inner pouch (120) may be positioned such that its upper end is lower than the upper end of the outer pouch (110) when placed inside the outer pouch (110), taking into account the subsequent rise in water level due to the supply of digestive fluid.

[0027] As shown in FIG. 1, the inner pouch (120) has a supply hole (121) formed to communicate with the interior of the outer pouch (110), and a plurality of supply holes (121) may be formed on at least the bottom surface. Preferably, a plurality of supply holes (121) may be formed not only on the bottom surface of the inner pouch (120) but also on the lower side wall of the inner pouch (120). However, this is not limited thereto, and the supply holes (121) may be formed at various locations with sizes suitable for use and purpose. Since the interior of the inner pouch (120) communicates with the interior of the outer pouch (110) through the supply hole (121), the fire extinguishing liquid can be filled into both the outer pouch (110) and the inner pouch (120).

[0028] In order to quickly fill the fire extinguishing liquid in the outer pouch (110) and the inner pouch (120) in the beginning, the fire extinguishing liquid can be filled through each open upper surface, and as shown in FIG. 4, when the fire extinguishing liquid is filled to a certain height in the inner pouch (120), the battery (10) in thermal runaway can be submerged in the fire extinguishing liquid contained in the inner pouch (120) to block the thermal runaway of the battery (10).

[0029] The fire extinguishing liquid supply tube (130) is formed in the shape of a tube having a predetermined length as shown in FIGS. 1 and 2, and, for example, can be formed in the shape of a tube longer than the height of the outer pouch (110). The fire extinguishing liquid supply tube (130) can be provided such that its lower end is spaced apart from the bottom surface of the outer pouch (110), its longitudinal direction is connected to the inner wall of the outer pouch (120), and its upper end is positioned above the outer pouch (110). That is, when fire extinguishing liquid is supplied through the upper end of the fire extinguishing liquid supply tube (130) placed between the outer pouch (110) and the inner pouch (120), the fire extinguishing liquid is filled into the outer pouch (110) through the lower part of the outer pouch (110), and also filled into the inner pouch (120) through the supply hole (121).

[0030] The fire extinguishing liquid discharge hose (140) is formed in the shape of a tube having a predetermined length as shown in FIG. 1, and can be positioned such that one end is located inside the inner pouch (120) and the other end is located outside the outer pouch (110). For example, the fire extinguishing liquid discharge hose (140) can be positioned such that one end is located adjacent to the top of the inner pouch (120), and the other end passes near the top of the outer pouch (110) and is positioned outside the outer pouch (110) at a lower level than the one end. At this time, the discharge of the fire extinguishing liquid through the fire extinguishing liquid discharge hose (140) is carried out according to the siphon principle and continues until the level of the fire extinguishing liquid filled in the inner pouch (120) drops below the one end.

[0031] Additionally, the other end of the fire extinguishing liquid discharge hose (140) can be positioned inside a toilet (30), which is one of the in-flight facilities provided near the washbasin (20). At this time, the other end of the fire extinguishing liquid discharge hose (140) can be formed to have a structure that can be fixed using an inner step formed on the edge of the toilet (30), as shown in FIGS. 8 and 9. For example, the fire extinguishing liquid discharge hose (140) can be formed in a pipe shape from one end to a point adjacent to the other end, and the other end can be formed in a flat shape, and the fire extinguishing liquid discharge hose (140) can be formed in a structure that is bent so as to wrap around the step formed on the edge of the toilet (30). Accordingly, the suppression pouch member (100) can be fixed to the toilet (30) through the fire extinguishing liquid discharge hose (140), and can be used to fix the suppression pouch member (100) separately or together with the pouch fixing device (112) described above.

[0032] Accordingly, when the extinguishing liquid is filled in the outer pouch (110) and the inner pouch (120) up to a predetermined height (a height lower than one end of the extinguishing liquid discharge hose (140)), and the extinguishing liquid is supplied to the outer pouch (110) through the extinguishing liquid supply tube (130) as shown in FIG. 6, the level of the extinguishing liquid in the outer pouch (110) and the inner pouch (120) rises, and when the level rises above one end of the extinguishing liquid discharge hose (140), the extinguishing liquid is discharged through the extinguishing liquid discharge hose (140).

[0033] That is, the present invention can primarily prevent a thermal runaway fire of the battery (10) through the extinguishing liquid filled in the outer pouch (110) and the inner pouch (120), and if the temperature of the extinguishing liquid rises during the suppression process, the extinguishing liquid with a relatively lower temperature is supplied through the extinguishing liquid supply tube (130), and the extinguishing liquid with a higher temperature is discharged through the extinguishing liquid discharge hose (140), thereby preventing the temperature of the extinguishing liquid filled in the outer pouch (110) and the inner pouch (120) from rising, so that the thermal runaway fire of the battery (10) can be continuously suppressed.

[0034] Meanwhile, in order for the supply of fire extinguishing liquid through the fire extinguishing liquid supply tube (130) to be carried out according to the siphon principle while using a washbasin (20), which is one of the in-flight facilities, the present invention may further include a fire extinguishing liquid supply member (200), and the fire extinguishing liquid supply member (200) may include a supply pouch (210) and a fire extinguishing liquid supply hose (220) as shown in FIG. 1.

[0035] Here, the washbasin (20) is provided with a washbasin bowl (21) and a faucet (22) adjacent to the washbasin bowl (21) on the upper surface, and a front edge (23) positioned higher than the lowest point of the washbasin bowl (21) is provided in the front adjacent to the washbasin bowl (21), and the suppression pouch member (100) is provided with the upper end of the fire extinguishing liquid supply tube (130) positioned lower than the upper surface of the washbasin (20) on the front side of the washbasin (20).

[0036] The supply pouch (210) can be seated on the wash bowl (21) in the shape of a container with an open top surface. Considering that the wash bowl (21) is typically formed in a concave shape, the lower part of the supply pouch (210) can be formed in a concave shape so as to be adjacent to the wash bowl (21). Additionally, the supply pouch (210) can be seated on the wash bowl (21) so that the drain (21a) formed at the bottom of the wash bowl (21) remains open. At this time, if the drain (21a) of the wash bowl (21) is installed in an aircraft, suction force is generated through the drain (21a) during aircraft operation; therefore, in order to discharge harmful gases, it is preferable that the supply pouch (210) not close the entire drain (21a). In addition, the supply pouch (210) filled with fire extinguishing liquid inside forms a state in which the washbasin (21) is in close contact, so that harmful gas can be discharged only through the drain (21a), thus maintaining airtightness.

[0037] As shown in FIG. 5, this supply pouch (210) can be filled with water, which is a fire extinguishing liquid, from a faucet (22) up to a certain height. At this time, it is preferable that the water level of the fire extinguishing liquid filled in the supply pouch (210) is lower than the discharge port of the faucet (22) and higher than the front edge (23). In addition, a faucet installation hole may be formed in the upper side wall of the supply pouch (210) so that water can be stably supplied from the faucet (22), and the discharge port of the faucet (22) may be inserted into the supply pouch (210) through the faucet installation hole.

[0038] The fire extinguishing liquid supply hose (220) is formed in the shape of a tube having a predetermined length, and one end is positioned at the inner lower part of the supply pouch (210), and the other end is positioned within the fire extinguishing liquid supply tube (130) after passing the front edge (23) of the washbasin (20) adjacent to the washbasin bowl (21). At this time, it is preferable that the fire extinguishing liquid supply hose (220) be positioned so that one end is positioned lower than the point where it passes the front edge (23), and the other end is positioned lower than the one end. Accordingly, when the water level of the fire extinguishing liquid filled in the supply pouch (210) rises above the point of the fire extinguishing liquid supply hose (220) passing the front edge (220) as shown in FIG. 6, the fire extinguishing liquid can be supplied to the fire extinguishing liquid supply tube (130) through the fire extinguishing liquid supply hose (220).

[0039] Meanwhile, the present invention may further include a gas discharge member (300) for discharging harmful gases generated during the process of suppressing a fire in a battery (10) that is undergoing thermal runaway to the outside, and the gas discharge member (300) may include a harmful gas cover (310) and a gas discharge hose (320) as shown in FIGS. 7 to 9, for example.

[0040] The harmful gas cover (310) is configured to minimize the release of harmful gas to the outside during the process of suppressing a fire in the battery (10) by covering the upper side of the outer pouch (110). As shown in FIG. 7, the lower end is connected along the upper circumference of the outer pouch (110), and the upper end is tightened to surround the upper part of the fire extinguishing liquid supply tube (130). Thus, after placing the battery (10) in heat runaway into the fire extinguishing liquid contained in the inner pouch (120), the upper end of the harmful gas cover (310) is tightened to cover the upper side of the outer pouch (110), thereby preventing the release of harmful gas to the outside.

[0041] As shown in FIG. 7, the gas discharge hose (320) is formed in the shape of a pipe having a predetermined length, and one end is located within the harmful gas cover (310), and the other end can be located in an in-flight facility where suction force can be generated. For example, the drain (21a) of the washbasin (21) installed in the aircraft's restroom maintains suction force to maintain drainage performance during flight, and the harmful gas present within the harmful gas cover (310) can be moved to the drain (21a) connected to the outside through the gas discharge hose (320), which passes through the front edge (23) of the washbasin (20) and the lower side of the supply pouch (210), and the other end is located at the drain (21a) formed at the bottom of the washbasin (21).

[0042] As another example, the toilet (30) installed in the restroom of an aircraft can generate suction force according to the user's operation, so that the other end of the gas discharge hose (320) is positioned inside the toilet (30) and harmful gas can be discharged through the outlet of the toilet (30) through the user's operation. At this time, the gas discharge hose (320) can be positioned so that the other end is positioned inside the toilet (30) through the gap between the toilet body and the toilet cover covering the upper side thereof, as shown in FIGS. 8 and 9, and it is preferable that gas discharge be made with the toilet cover closed. When gas is discharged through the toilet (30) in this way, the fire extinguishing liquid supply tube (130) and the gas discharge hose (320) can be formed as a single unit, for example, the gas discharge hose (320) can be provided inside the fire extinguishing liquid supply tube (130). Accordingly, if the other end of the fire extinguishing liquid supply tube (130) is positioned inside the toilet (30), the other end of the gas discharge hose (320) is also positioned inside the toilet (30), so that the fire extinguishing liquid discharge and gas discharge can be performed together.

[0043] Meanwhile, the process of suppressing a battery (10) fire using the battery fire suppression device of the present invention described above is as follows.

[0044] When a fire occurs in a battery (10) that is running hot, the user can take out a fire suppression pouch (100) that is stored in a folded state and place it in front of a washbasin (20) provided in the bathroom, fill the outer pouch (110) and inner pouch (120) with fire extinguishing liquid up to a certain height through the open top surface as shown in FIG. 4, and then immerse the battery (10) that is running hot in the fire in the inner pouch (120) to suppress the fire in the first stage.

[0045] Afterwards, the user can detect through the heat detection film (111) that the temperature of the fire extinguishing liquid is rising due to heat or flame generated from the battery (10) that is running hot, and when the limit temperature is reached, the user can prevent the temperature of the fire extinguishing liquid filled in the outer pouch (110) and inner pouch (120) from rising by simultaneously supplying the fire extinguishing liquid through the fire extinguishing liquid supply tube (130) and discharging the fire extinguishing liquid through the fire extinguishing liquid discharge hose (140).

[0046] At this time, to supply fire extinguishing liquid through the fire extinguishing liquid supply tube (130), the user may install a fire extinguishing liquid supply member (200) as shown in FIGS. 5 and 6, and water, which is the fire extinguishing liquid discharged through the faucet (22), may be supplied to the fire extinguishing liquid supply tube (130) via the supply pouch (210) and the fire extinguishing liquid supply hose (220). Additionally, the other end of the fire extinguishing liquid discharge hose (140) may be positioned inside the toilet (30) so that the discharged fire extinguishing liquid is released to the outside through the toilet (30).

[0047] And as shown in FIGS. 7 to 9, the upper side of the outer pouch (110) is covered using a harmful gas cover (310), and a gas discharge hose (320) is installed so that harmful gas generated during the process of suppressing the battery (10) is sucked in through the drain (21a) of the washbasin (21) or the toilet (30) and escapes to the outside, thereby preventing the user in the space where the fire of the battery (10) is suppressed from inhaling the harmful gas.

[0048] The present invention is easy to store and can be installed quickly by anyone. It also utilizes existing facilities such as washbasins to prevent the temperature rise of the fire extinguishing liquid that blocks the thermal runaway of the battery (10), thereby allowing the battery (10) fire to be suppressed continuously and safely even with limited space and resources. Explanation of the symbols

[0049] 10 : Battery 20 : Washbasin 21 : Washbasin 21a : Drain 22 : Faucet 23 : Front ledge 24 : Base cabinet door 30 : Toilet 100 : Absence of suppression pouch 110 : External pouch 111 : Heat-sensing film 112 : Pouch fixing device 120 : Inner pouch 121 : Supply hole 130 : Fire extinguishing fluid supply tube 140 : Fire extinguishing fluid discharge hose 200 : Digestive fluid supply member 210 : Supply pouch 220 : Fire extinguishing fluid supply hose 300 : Gas exhaust member 310 : Hazardous gas cover 320 : Gas exhaust hose

Claims

Claim 1 A suppression pouch member (100) comprising: an outer pouch (110) having a tube shape with an open top surface; an inner pouch (120) having a tube shape smaller than the outer pouch (110) with an open top surface, disposed inside the outer pouch (110), and having a supply hole (121) formed to communicate with the outer pouch (110); a fire extinguishing liquid supply tube (130) disposed between the outer pouch (110) and the inner pouch (120) such that the lower end is spaced apart from the bottom surface of the outer pouch (110) and the upper end is positioned on the upper side of the outer pouch (110); and a fire extinguishing liquid discharge hose (140) disposed such that one end is positioned inside the inner pouch (120) and the other end is positioned on the outside of the outer pouch (110), wherein the outer pouch (110) and A battery fire suppression device characterized by further including a gas discharge member (300) comprising a harmful gas cover (310) that can cover the upper side of the outer pouch (110) and has one end located inside the harmful gas cover (310) and the other end located in an internal facility where suction force can be generated. The device can accommodate a battery (10) within an internal pouch (120) with the fire extinguishing liquid filled to a predetermined height within the internal pouch (120), supply the fire extinguishing liquid to an external pouch (110) through the fire extinguishing liquid supply tube (130), and discharge the fire extinguishing liquid from the internal pouch (120) to the outside through the fire extinguishing liquid discharge hose (140). The gas discharge member (300) further comprises a harmful gas cover (310) that can cover the upper side of the external pouch (110) by wrapping around the upper part of the fire extinguishing liquid supply tube (130) as the lower end is connected along the upper circumference of the external pouch (110) and the upper end is tightened, and a gas discharge hose (320) that can have one end located inside the harmful gas cover (310) and the other end located in an internal facility where suction force can be generated. Claim 2 A battery fire suppression device according to claim 1, wherein the outer pouch (110) is provided with a heat-sensing film (111) that changes color according to the temperature of the fire extinguishing liquid filled inside, and the supply of fire extinguishing liquid can be determined according to the color of the heat-sensing film (111). Claim 3 A battery fire suppression device according to claim 1, wherein the suppression pouch member (100) can be fixed to an in-flight facility through at least one of a fixing structure formed at the other end of a fire extinguishing liquid discharge hose (140) and a pouch fixing member (112) provided in an outer pouch (110). Claim 4 A battery fire suppression device according to claim 1, wherein the suppression pouch member (100) further comprises a supply pouch (210) which is formed in the shape of a container with an open top surface and can be seated on the washbasin (21) and can receive water, which is a fire suppression liquid, from the faucet (22), and which is provided on the front side of the washbasin (20) on which a washbasin bowl (21) and a faucet (22) are provided on the upper surface, such that the upper end of the fire suppression liquid supply tube (130) is positioned lower than the upper surface of the washbasin (20), and can be seated on the washbasin bowl (21); and a fire suppression liquid supply hose (220) which has one end disposed in the inner lower part of the supply pouch (210), passes through the front edge (23) of the washbasin (20) adjacent to the washbasin bowl (21), and has the other end disposed within the fire suppression liquid supply tube (130). Claim 5 delete

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