A Storing Pack for an Auxiliary Battery Loaded within an Airplane with a Function of Preventing an Explosion and Removing a Smoke

Abstract

The present invention relates to an auxiliary battery storage pack for an aircraft with explosion-proof and smoke-removing functions. The auxiliary battery pack for an aircraft with explosion-proof and smoke-removing functions comprises: a receiving pack (13) in which an auxiliary battery is received; a lid (11) coupled to the open upper surface of the receiving pack (13); a filter module (20) coupled to the lower surface of the receiving pack (13); and a porous structured discharge induction unit (30) coupled to one end of the filter module (20).

Description

Technology Field

[0001] The present invention relates to an auxiliary battery storage pack for an aircraft with explosion-proof and smoke-repellent functions, and specifically, to an auxiliary battery storage pack for an aircraft with explosion-proof and smoke-repellent functions capable of preventing explosion and external leakage of smoke in the event of a fire while storing an auxiliary battery for an aircraft passenger. Background Technology

[0002] Auxiliary batteries for charging smartphones, tablets, laptops, or similar portable electronic devices have a lithium-ion battery structure and can cause fire or explosion through a chain reaction caused by thermal runaway due to internal damage resulting from overcharging, over-discharging, external impact, or exposure to high temperatures. When carrying an auxiliary battery with such a risk of explosion on an airplane, it is advantageous to store the auxiliary battery in a separate storage pack. A fire may occur in a battery stored inside a battery storage pack or storage case, and the storage pack or storage case may have a structure that prevents the spread of combustion and prevents the leakage of a large amount of smoke caused by thermal runaway. Regarding cases for storing auxiliary batteries, Patent Publication No. 10-2022-0064048 discloses a functional storage device for storing auxiliary batteries for fire prevention. Additionally, Patent Registration No. 10-2816309 discloses a portable storage case for auxiliary batteries. Auxiliary battery storage cases of prior art or known technology have the disadvantage that, for example, while capable of storing auxiliary batteries when boarding an aircraft and preventing explosions in the event of a fire, it is difficult to prevent smoke leakage caused by thermal runaway. Therefore, there is a need to develop an auxiliary battery storage pack having such functions.

[0003] The present invention aims to solve the problems of the prior art and has the following objectives. Prior art literature

[0004] Prior Art 1: Patent Publication No. 10-2022-0064048 (Published by Jin-Ho Lee, May 18, 2022) Functional storage device for storing auxiliary batteries for fire prevention Prior Art 2: Patent Registration No. 10-2816309 (Published by Asan S&Tech Co., Ltd., June 4, 2025) Portable storage case for auxiliary batteries The problem to be solved

[0005] The objective of the present invention is to provide an aircraft auxiliary battery storage pack with explosion-proof and smoke-removing functions that allows the auxiliary battery to be stored when boarding an aircraft, while preventing external leakage of explosion and smoke even if a fire occurs during the storage process. means of solving the problem

[0006] According to a suitable embodiment of the present invention, an auxiliary battery storage pack for an aircraft with explosion-proof and smoke-removing functions comprises: a receiving pack in which an auxiliary battery is received; a lid coupled to the open upper surface of the receiving pack; a filter module coupled to the lower surface of the receiving pack; and a porous structured exhaust induction unit coupled to one end of the filter module.

[0007] According to another suitable embodiment of the present invention, the filter module comprises a plurality of filter units connected in a stacked structure.

[0008] According to another suitable embodiment of the present invention, the receiving pack further includes a temperature-changing layer formed on the outer periphery surface.

[0009] According to another suitable embodiment of the present invention, the filter module is detachably coupled to the receiving pack. Effects of the invention

[0010] The aircraft auxiliary battery storage pack with explosion-proof and smoke-control functions according to the present invention enables the auxiliary battery to be stored safely when boarding an aircraft. Specifically, even if a fire occurs during the storage process, it prevents an explosion caused by thermal runaway of the battery and prevents a large amount of smoke resulting from thermal runaway from leaking to the outside of the storage pack. The storage pack according to the present invention can store various types of auxiliary batteries and can be deployed on various types of aircraft, and the present invention is not limited thereby. Brief explanation of the drawing

[0011] FIG. 1 illustrates an example of an auxiliary battery storage pack for an aircraft with explosion-proof and smoke-removing functions according to the present invention. FIG. 2 illustrates an example of a structure in which a storage pack according to the present invention is assembled. FIG. 3 illustrates an example of a fastening structure in which modules for a storage pack according to the present invention are fastened together. FIG. 4 illustrates an example of a structure for fixing an auxiliary battery to a storage pack according to the present invention. FIG. 5 illustrates an example of a filter module for a storage pack according to the present invention. Specific details for implementing the invention

[0012] The present invention is described in detail below with reference to embodiments shown in the attached drawings, but the embodiments are for a clear understanding of the invention and the invention is not limited thereto. In the description below, components having the same reference numeral in different drawings have similar functions and are not described repeatedly unless necessary for understanding the invention, and known components are described briefly or omitted, but should not be understood as being excluded from the embodiments of the present invention.

[0013] FIG. 1 illustrates an example of an auxiliary battery storage pack for an aircraft with explosion-proof and smoke-removing functions according to the present invention.

[0014] Referring to FIG. 1, an aircraft auxiliary battery storage pack with explosion-proof and smoke-removing functions comprises: a receiving pack (13) in which an auxiliary battery is received; a lid (11) coupled to the open upper surface of the receiving pack (13); a filter module (20) coupled to the lower surface of the receiving pack (13); and a porous structured exhaust induction unit (30) coupled to one end of the filter module (20).

[0015] The receiving pack (13) may have various structures in which an auxiliary battery can be received inside, for example, the receiving pack (13) may be a hollow cylindrical shape, a hollow hexahedron shape, a hollow polyhedron shape, a hollow ellipsoid shape or a similar shape, but is not limited thereto. The receiving pack (13) may include a receiving body (131) in which an auxiliary battery is received inside; a fixing structure (132) formed inside the receiving body (131) to stably secure the auxiliary battery; a first fastening part (134a) formed at one end of the receiving body (131); and a second fastening part (134b) formed at the other end of the receiving body (131). The fixing structure (132) may have various structures capable of fixing the auxiliary battery inside the receiving body (131), and the first and second fastening parts (134a, 134b) may be structures capable of being fastened, for example, to a screw thread structure, a groove-protrusion structure, or other similar parts formed on the inner or outer circumference of the end portion of the receiving body (131). The entrance of the receiving body (131) may be an open structure for receiving the auxiliary battery, and the opposite side of the entrance of the receiving body (131) may be a closed structure in which the auxiliary battery can be fixed. A fixing plate (135) may be placed on the bottom surface of the receiving body (131) so that the auxiliary battery can be stably fixed inside the receiving body (131). The fixing plate (135) may have various structures that allow for the flow of gas and support the auxiliary battery to be fixed inside the receiving body (131), and the present invention is not limited by this. A lid (11) may be attached to the open entrance side of the receiving body (131), and the lid may have various structures such that one part is closed and the open part is attached to the entrance of the receiving body (131).Specifically, the lid (11) may consist of a lid body (111) that seals the open opening of the receiving body (131) and a connecting part (112) that is detachably connected to a first connecting part (134a). The lid body (111) may be made of various structures capable of sealing the opening, and the connecting part (112) may be connected to the first connecting part (134a), for example, by a screw connection. The lid (11) may have various structures that can be detachably connected to one side of the receiving pack (13), and the present invention is not limited thereto.

[0016] A filter module (20) comprising at least one filter unit (21, 22, 23) may be coupled to the lower portion of the receiving pack (13), and at least one filter unit (21, 22, 23) may be connected to each other in a stacked structure. For example, the filter module (20) may consist of a first filter unit (21), such as a diffusion filter layer; a second filter unit (22), such as a carbon filter layer or an activated carbon filter layer connected to the first filter unit (21); and a third filter unit (23), such as a ULPA filter or a HEPA filter. The first, second, and third filter units (21, 22, 23) may be arranged in a stacked form inside a filter case (FC), and the filter module (20) may be detachably coupled to a second coupling portion (134b) by a sealed coupling portion (24). For example, the second coupling part (134b) and the sealed coupling part (24) may be coupled so as to be separable by a screw coupling method, but are not limited thereto, and may be coupled so as to be separable in various ways to prevent smoke leakage in the event of a fire. The first filter unit (21) may have the function of filtering solid explosion residue while inducing a gas containing smoke, and may be, for example, a pre-filter, a non-woven filter, or a porous filter. The first filter unit (21) may include flow holes having a relatively large diameter so that smoke generated by a fire in the auxiliary battery can be quickly discharged. Smoke passing through the first filter unit (21) may be collected in the second filter unit (22). The second filter unit (22) may be an activated carbon filter or a carbon filter and may include flow holes having a relatively small diameter compared to the first filter unit (21). The gas from which smoke components have been removed while passing through the second filter unit (22) can be completely purified in the third filter unit (23), and the third filter unit (23) can be a ULPA filter or a HEPA filter.In this way, air from which harmful components, including smoke, have been completely removed by a plurality of filter units (21, 22, 23) can be discharged to the outside through an exhaust induction unit (30). The exhaust induction unit (30) may be in the shape of a plate with a plurality of exhaust holes formed therein and may have the function of fixing the first, second, and third filter units (21, 22, 23) inside the filter case (FC). The filter module (20) may include various filter layers capable of removing smoke and harmful components contained in the gas, and the present invention is not limited thereto.

[0017] FIG. 2 illustrates an example of a structure in which a storage pack according to the present invention is assembled.

[0018] Referring to FIG. 2, the auxiliary battery pack further includes a thermochromic layer (26) formed on the outer periphery of the receiving pack (13). The auxiliary battery pack may be a sealed structure having a receiving space formed inside, and the receiving body (131) may be made of aluminum, duralumin, or a similar metal material, but is not limited thereto. The receiving body (131) may be made of various materials capable of resisting a certain level of high temperature, and a fixing structure (132) for fixing the auxiliary battery may be formed inside the receiving body (131). A lid (11) may be attached to one open end of the receiving pack (13), and a filter module (20) may be detachably attached to the other end of the receiving pack (13). An exhaust induction unit (30) may be attached to the end of the filter module (20). The filter module (20) may be formed integrally or may consist of a plurality of detachable filter unit modules. Specifically, the filter module (20) may be composed of first, second, and third filter unit modules, each comprising first, second, and third filter units (21, 22, 23). The first, second, and third filter unit modules may be combined so as to be separable from each other and may be separated from each other by separation tabs (27_1 to 27_L). For example, the first, second, and third filter units (21, 22, 23) may be combined so as to be separable from each other by a screw connection method, but are not limited thereto, and may be combined in various ways that are sealable and separable, and the present invention is not limited thereby.

[0019] According to one embodiment of the present invention, a thermochromic layer (26) may be formed on at least the circumferential surface of a receiving body (131), and optionally, a thermochromic layer (26) may be formed on the circumferential surface of a lid (11) or the circumferential surface of a filter module (20). The thermochromic layer (26) may be formed, for example, from a silicone material having flame-retardant properties, and the thermochromic layer (26) may include a thermochromic pigment. The thermochromic layer (26) may change color at a temperature of 40°C or higher. Alternatively, the thermochromic layer (26) may change color first at a temperature of 40°C, for example, and then change color secondarily at a temperature exceeding 80°C. The color change temperature of the thermochromic layer (26) may be set to various values ​​depending on the selection of the thermochromic dye, and the present invention is not limited by this. The temperature-changing layer (26) may be formed on the periphery of the receiving pack (13), the lid (11), or the filter module (30), and accordingly, the temperature-changing layer (26) may be formed to wrap around the entire storage pack. The discharge induction unit (30) may consist of a disc-shaped induction body (132) and a plurality of through holes (32_1 to 32_N) formed to penetrate the induction body (132), and the through holes (32_1 to 32_N) may have various diameters so that air purified by the filter module (30) can be stably discharged, and the present invention is not limited by this. The receiving pack (13) and the lid (11) may be made independently, and the filter module (30) may also be made independently. An independently manufactured filter module (30) can be detachably coupled to a receiving pack (13), and the filter module (30) can be coupled to the receiving pack (13) with a sealed structure, or the coupling portion can be sealed. In this state, an auxiliary battery can be accommodated inside the storage pack, and the storage pack containing the battery can be placed inside an aircraft.In this way, even if a fire occurs in the auxiliary battery while the auxiliary battery is housed in the storage pack, an explosion due to thermal runaway is prevented, and smoke generated by the fire is removed by the filter module (30), and purified air is discharged to the outside. The storage pack according to the present invention can be placed in various types of aircraft, and the present invention is not limited thereby.

[0020] FIG. 3 illustrates an example of a fastening structure in which modules for a storage pack according to the present invention are fastened together.

[0021] Referring to FIG. 3, different modules (31, 32) forming a storage pack can be combined so as to be detachable, for example, the lid and the storage pack can be combined so as to be detachable. Additionally, the storage pack and the filter module can be combined so as to be detachable, or a plurality of filter units forming the filter module can be combined so as to be detachable from each other. The first module (31) and the second module (32) can be joined to each other by a screw connection method or by a groove (33) and a projection (34). At least two grooves (33) can be formed on the periphery of the first module (31), and each groove (33) can be formed with a guide path that gradually decreases in width inwardly towards the end and a square-shaped fixing part formed at the end of the guide path. And a projection (34) that is coupled to each groove (33) can be formed on the periphery of the second module (32). Each projection (34) may consist of a guiding portion that gradually increases in width from the end portion of the second module (32) or extends with a constant width, and a connecting fixing portion formed at the end portion of the guiding portion. The connecting fixing portion may consist of a first surface extending vertically from the end portion of the guiding portion; a pair of sides extending at an angle from the first surface; and a finishing surface connecting the ends of the pair of sides. The first surface and the finishing surface may be parallel to each other, and the finishing surface may have a shorter length than the first surface. Each groove (33) and projection (34) may be a forced-fit connection. The first module (31) and the second module (32) may be connected in various connection structures, and the present invention is not limited thereto. A sealing unit (35) may be formed at the connection portion of the first module (31) and the second module (32). The sealing unit (35) may be, for example, a sealing tape or a sealing ring surrounding the connection portion, but is not limited thereto.

[0022] FIG. 4 illustrates an example of a structure for fixing an auxiliary battery to a storage pack according to the present invention.

[0023] Referring to FIG. 4, a battery fixing structure for receiving an auxiliary battery may be formed inside a receiving body (131). The receiving body (131) may have a cuboid shape, and a pair of base plates (41a, 41b) may be fixed facing each other inside the receiving body (131). The pair of base plates (41a, 41b) may have a square plate shape, and the pair of base plates (41a, 41b) may be fixed facing each other on the inner surfaces of the receiving body (131). A pair of fixing tabs (42a, 42b, 43a, 43b) may be coupled to each base plate (41a, 41b) so as to be movable in a direction facing each other. Specifically, it may consist of first and second fixing tabs (42a, 42b) coupled to the first base plate (41a) and third and fourth fixing tabs (43a, 43b) disposed on the second base plate (41b), and the first and second fixing tabs (42a, 42b) and the third and fourth fixing tabs (43a, 43b) may be moved in a direction facing each other, and the auxiliary battery may be stably fixed inside the receiving body (131) by the four fixing tabs (42a, 42b, 43a, 43b). A fixing member (44) may be disposed on one part of the first base plate (41a), and an elastic induction path (45) may be formed from the fixing member (45). A linear elastic unit (46), such as a coil spring, may be placed in an elastic guide path (45), and a fixed tab (42a) may be attached to the end of the linear elastic unit (46). The fixed tab (42a) may be moved along the linear elastic unit (46). Each fixed tab (42a, 42b, 43a, 43b) may be moved along the linear elastic unit (46), thereby allowing the first and second fixed tabs (42a, 42b) and the third and fourth fixed tabs (43a, 43b) to be moved in a direction facing each other.And the auxiliary battery can be stably fixed inside the receiving body (131) by means of two pairs of fixing tabs (42a, 42b, 43a, 43b) facing each other. The auxiliary battery can be fixed inside the receiving body (131) in various ways, and the present invention is not limited by this.

[0024] FIG. 5 illustrates an example of a filter module for a storage pack according to the present invention.

[0025] Referring to FIG. 5, the first filter unit (21) may be a diffusion filter and may include at least one filter layer (51, 52, 53). For example, it may consist of a first filter layer (51) made of a flame-retardant and thermal insulation material; a second filter layer (52) formed with a second induction hole (H2_1 to H2_M) having a relatively larger diameter than that of the first filter layer (51) while being laminated to the first filter layer (51); and a third filter layer (53) formed with a third induction hole (H3_1 to H3_N) having a relatively larger diameter than that of the second filter layer (52). The first filter layer (51) may be made of, for example, ceramic, zeolite, or a similar flame-retardant or thermal insulation material. First induction holes (H1_1 to H1_L) may be uniformly formed in the first filter layer (51), and the first induction holes (H1_1 to H1_L) may have various diameters capable of gas flow. The second filter layer (51) may be made of, for example, non-woven fabric or a similar material, and the second induction holes (H2_1 to H2_M) may have a larger diameter than the first induction holes (H1_1 to H1_L). The third filter layer (53) may be made of a material similar to the second filter layer (52), and the third induction holes (H3_1 to H3_N) may have a larger diameter than the second induction holes (H2_1 to H2_M). The first, second, or third filter layers (51, 52, 53) may be made of various materials and each filter layer (51, 52, 53) may include induction holes (H1_1 to H3_N) having various diameters, and the present invention is not limited by this.

[0026] As illustrated on the right side of FIG. 5, the second filter unit (22) may include carbon powder (56_1 to 56_N). Specifically, the second filter unit (22) may be made of a gas shielding material and may consist of a perimeter unit (54) having an open front and rear surface forming a passage; a pair of limiting plates (55a, 55b) formed on the open front and rear surfaces of the perimeter unit (54); and carbon powder (56_1 to 56_N) disposed inside the pair of limiting plates (55a, 55b). Limiting holes (H4_1 to H4_K, H5_1 to H5_L) that allow gas flow while limiting the flow of carbon powder (56_1 to 56_N) may be formed in the limiting plates (55a, 55b). Smoke generated by a fire in the auxiliary battery may be captured by the carbon powder (H4_1 to H5_L). The second filter unit (22) can be made of various structures capable of capturing smoke components, and the present invention is not limited thereto.

[0027] Although the present invention has been described in detail above with reference to the presented embodiments, those skilled in the art may make various modifications and variations without departing from the technical spirit of the invention by referring to the presented embodiments. The present invention is not limited by such modifications and variations, but is limited only by the claims appended below. Explanation of the symbols

[0028] 11: Lid 13: Storage pack 20: Filter module 30: Exhaust induction unit 21 to 23: Filter unit 26: Temperature-changing layer

Claims

Claim 1 A receiving pack (13) including an open top surface for receiving an auxiliary battery for a portable electronic device; a lid (11) coupled to the open top surface of the receiving pack (13); a filter module (20) coupled to the bottom surface of the receiving pack (13); and a discharge induction unit (30) having a porous structure coupled to one end of the filter module (20), wherein the receiving pack (13) is formed in a hollow cylindrical shape or a hollow hexahedron shape and includes a receiving body (131) in which an auxiliary battery is received inside; and a first fastening part (134a) formed at one end of the receiving body (131). An auxiliary battery storage pack for an aircraft with explosion-proof and smoke-removing functions, comprising a second fastening portion (134b) formed at the other end of a receiving body (131), and a lid (11) comprising a lid body (111) that seals the open opening of the receiving body (131) and a coupling portion (112) that is detachably coupled to the first fastening portion (134a) in a screw thread structure or a groove-protrusion structure, wherein the filter module (20) comprises a first filter unit (21) including a diffusion filter; a second filter unit (22) including a carbon filter layer or an activated carbon filter layer; and a third filter unit (23) including a ULPA filter or a HEPA filter, arranged in a stacked form inside a filter case (FC), and the filter module (20) further comprises a sealing coupling portion (24) that is detachably coupled to the second coupling portion (134b) in a screw-coupling manner by means of a sealing coupling portion (24). Claim 2 delete Claim 3 An auxiliary battery storage pack for an aircraft with explosion-proof and smoke-removing functions according to claim 1, further comprising a temperature-changing layer (26) formed on the outer periphery surface of the receiving pack (13). Claim 4 delete

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