Aerospace emergency fire containment bag assembly for small lithium battery products

Abstract

The present application relates to a kind of aviation emergency fireproof isolation disposal bag assemblies for small lithium battery products, the aviation emergency fireproof isolation disposal bag assemblies include bag body, glove, heat-insulating blanket;Glove and the heat-insulating blanket are placed in the bag body;Glove is the heat-resistant glove for grabbing and placing the small lithium battery product on fire, and the heat-insulating blanket is used to wrap the small lithium battery product on fire;The opening position of bag body is equipped with sealing unit, and the sealing unit is used for the sealing of opening after the small lithium battery product is placed into bag body;Water inlet is provided on bag body, and seal plug type active fire extinguishing unit is detachably provided on water inlet.Compared with prior art, the present application meets the use of small space in aircraft cabin, integrates heat-insulating blanket, glove and bag body, forms a complete emergency processing assembly, is suitable for the emergency situation of small lithium battery product on fire, and can realize rapid fire extinguishing and cooling.

Description

Technical Field

[0001] This invention relates to the field of emergency response technology, and in particular to an aviation emergency fireproof isolation bag assembly for small lithium battery products. Background Technology

[0002] With the continuous advancement of technology, more and more electronic products are equipped with lithium batteries, such as mobile phones, tablets, and laptops. However, improper use and aging power supplies can lead to a series of safety hazards related to lithium batteries. A fire involving a lithium battery not only produces a large amount of debris but also releases a significant amount of toxic and harmful fumes, posing unpredictable dangers to people and the environment.

[0003] Aviation safety has always been a major concern. In a confined environment, especially during flight, if a lithium battery experiences thermal runaway, the resulting fire or explosion within the sealed cabin could cause incalculable damage if proper emergency procedures are not followed promptly. According to the International Civil Aviation Organization (ICAO), lithium batteries with a capacity exceeding 100Wh are prohibited from being carried on board. Therefore, equipping aircraft with thermal runaway emergency response devices for small batteries is essential to ensure a rapid emergency response in the event of thermal runaway, significantly reducing the likelihood of accidents.

[0004] CN202557965U discloses a lithium battery explosion-proof and fireproof bag, comprising a fiber cloth forming a bag body for housing the lithium battery. The fiber cloth includes an inner layer and an outer layer. The inner layer is a fire-resistant and explosion-proof composite fiber cloth, which is either a soft copper foil fiberglass cloth with a copper foil layer as the base layer or a soft aluminum foil fiberglass cloth with an aluminum foil layer as the base layer. The outer layer is a polyvinyl chloride (PVC) mesh fiber cloth. This lithium battery explosion-proof and fireproof bag is primarily designed as a fire-resistant and explosion-proof container for housing lithium batteries. Its design focuses on providing physical isolation and basic fire and explosion protection, but it cannot achieve rapid fire extinguishing and cooling, nor facilitate rapid fire extinguishing operations by users. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art by providing an aviation emergency fireproof isolation bag assembly for small lithium battery products. This assembly meets the requirements of use in the confined space of an aircraft cabin, integrates a heat insulation blanket, gloves, and bag body to form a complete emergency treatment component, suitable for emergency situations where small lithium battery products catch fire, and can achieve rapid fire extinguishing and cooling.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] This invention provides an aviation emergency fireproof isolation bag assembly for small lithium battery products, the aviation emergency fireproof isolation bag assembly including a bag body, gloves, and a heat insulation blanket;

[0008] Both the gloves and the heat insulation blanket are placed inside the bag;

[0009] The gloves are heat-resistant gloves used for handling small lithium battery products on fire, and the heat insulation blanket is used to wrap the small lithium battery products on fire.

[0010] The bag body is provided with a sealing unit at the opening position. The sealing unit is used to seal the opening after the small lithium battery product is put into the bag body.

[0011] The bag is provided with a water inlet, and a detachable plug-type active fire extinguishing unit is provided on the water inlet;

[0012] The plug-type active fire extinguishing unit can actively spray fire extinguishing material based on the temperature of the bag. The plug-type active fire extinguishing unit can also draw water from the external container and spray it into the bag.

[0013] Furthermore, the plug-type active fire extinguishing unit has a plug-like structure;

[0014] The plug-type active fire extinguishing unit includes a plug body, a carbon dioxide storage chamber located in the plug body, an infrared temperature sensor located at the inner end of the plug body, a miniature water pump located in the plug body, a hose connected to the inlet end of the miniature water pump, and a nozzle located at the inner end of the plug body.

[0015] The hose can extend from the inner end of the sealing body and be used to draw water from the outer container;

[0016] The outlet end of the micro water pump is connected to the nozzle for pumping water into the bag body;

[0017] The carbon dioxide storage chamber stores liquid carbon dioxide, and the output end of the carbon dioxide storage chamber is located at the inner end of the sealing body.

[0018] Furthermore, the sealing-type active fire extinguishing unit also includes a controller, a first solenoid valve located at the outlet end of the carbon dioxide storage chamber, a second solenoid valve located at the outlet end of the micro water pump, and a water pump start button located at the outer end of the sealing body.

[0019] The controller is communicatively connected to the first solenoid valve, the micro water pump, the second solenoid valve, the infrared temperature sensor, and the water pump start button.

[0020] The sealing body has a hose receiving cavity, and the hose can be retracted into or withdrawn from the hose receiving cavity.

[0021] Furthermore, a handle is provided at the top of the bag;

[0022] The bag is made of an inner layer material, a middle layer material, and an outer layer material sewn together;

[0023] The inner layer material is a fire-retardant fiber layer with a fire-resistant coating on the surface, and the fire resistance rating of the inner layer material is the highest fire resistance rating among fabrics.

[0024] The middle layer material is a heat insulation cotton layer;

[0025] The outer layer material is a waterproof and wear-resistant woven layer.

[0026] Furthermore, the sealing unit is a Velcro closure located at the opening.

[0027] Furthermore, the plug-type active fire extinguishing unit is matched with the water inlet, and the plug body is made of silicon dioxide material.

[0028] Furthermore, the inner layer material is selected from one of Nomex fiber, aramid fiber, and basalt fiber, and the thickness of the inner layer material is 2-4 mm;

[0029] The fire-retardant coating on the inner layer material is selected from silicate materials and intumescent flame retardants.

[0030] Furthermore, the material of the middle layer is selected from one of glass fiber, aluminum silicate fiber, and ceramic fiber, and the thickness of the middle layer is 2-5 mm.

[0031] Furthermore, the outer layer material is selected from one of polyethylene fiber, polypropylene fiber, and carbon fiber, and the thickness of the outer layer material is 2-4 mm.

[0032] Furthermore, the surface of the heat insulation blanket is coated with a fire-retardant material layer;

[0033] The fireproof material layer is selected from silicate materials and intumescent flame retardants.

[0034] The insulation blanket is made of either aluminosilicate fiber or ceramic fiber. Compared with the prior art, the present invention has the following technical advantages:

[0035] (1) The present invention provides an aviation emergency fireproof isolation disposal bag for small lithium battery products. It is lightweight, portable, easy to store and simple to operate, and meets the needs of use in the small space inside the aircraft cabin. It integrates heat insulation blanket, gloves and bag body to form a complete emergency treatment component, which is suitable for emergency situations where small lithium battery products catch fire.

[0036] (2) The fire resistance rating of the aviation emergency fireproof isolation bag provided by the present invention can reach the B1 level specified in GB 8264 "Classification of Combustion Performance of Building Materials and Products", which is the highest fire resistance rating of fabrics and can effectively retard flame.

[0037] (3) The aviation emergency fireproof isolation bag provided by the present invention takes into account the high temperature hazards generated by the combustion of lithium battery products, and can isolate the burning battery inside the bag, reduce the temperature outside the bag, and reduce the damage of high temperature to personnel and the environment.

[0038] (4) The aviation emergency fireproof isolation bag provided by the present invention is designed with a waterproof layer. It can extinguish and cool the thermal runaway lithium battery by injecting cold water, reduce the risk of battery thermal spread, and control the intensity of battery combustion.

[0039] (5) The plug-type active fire extinguishing unit can automatically start when high temperature is detected, spray fire extinguishing material, and effectively control the fire. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the main structure of an aviation emergency fireproof isolation bag for small lithium battery products, provided in an embodiment of the present invention.

[0041] Figure 2 This is a left-side view of an aviation emergency fireproof isolation bag for small lithium battery products, provided as an embodiment of the present invention.

[0042] Figure 3 This is a schematic diagram of the three-layer material structure of an aviation emergency fireproof isolation bag for small lithium battery products, provided as an embodiment of the present invention.

[0043] Figure 4 This is a schematic diagram of the glove and heat insulation blanket structure of an aviation emergency fireproof isolation bag for small lithium battery products, provided as an embodiment of the present invention.

[0044] Figure 5 This is a schematic diagram of the sealing-type active fire extinguishing unit in this invention.

[0045] In the diagram: Bag body – 1; Glove – 2; Insulation blanket – 3; Inner layer material – 4; Middle layer material – 5; Outer layer material – 6; Handle – 7; Water inlet – 8; Opening – 9; Velcro – 10; Sealing body – 11; Carbon dioxide storage chamber – 12; Infrared temperature sensor – 13; Miniature water pump – 14; Hose – 15; Nozzle – 16; Controller – 17; First solenoid valve – 18; Second solenoid valve – 19; Water pump start button – 20; Hose receiving chamber – 21. Detailed Implementation

[0046] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0047] Example 1

[0048] like Figures 1 to 4 The image shows an aviation emergency fireproof isolation bag for small lithium battery products. The fireproof isolation bag includes a bag body 1, gloves 2, and a heat insulation blanket 3. The gloves 2 and the heat insulation blanket 3 are placed inside the bag body 1. The bag body 1 is made of an inner layer material 4, a middle layer material 5, and an outer layer material 6 sewn together. A handle 7 is provided at the top of the bag body. A water inlet 8 is provided on the front of the bag body. An opening 9 is provided at the top of the bag body. A Velcro 10 is provided at the opening of the bag body. The small lithium battery product is placed inside the bag body 1 and sealed by the Velcro 10.

[0049] The bag consists of a front, back, left, right, and bottom. There is an opening 9 at the top of the bag. The lithium battery device is placed into the bag 1 through the opening 9. The shape of the bag 1 is similar to a cuboid when it is open. The bag 1 is closed by Velcro 10 provided at the top of the front and back. The shape of the bag 1 when it is closed is similar to a house.

[0050] The bag body 1 is provided with a water inlet 8, and the water inlet 8 is detachably provided with a plug-type active fire extinguishing unit; the plug-type active fire extinguishing unit can actively spray fire extinguishing material based on the temperature of the bag body 1, and the plug-type active fire extinguishing unit can also draw water from the external container and spray it into the bag body 1.

[0051] The plug-type active fire suppression unit has a plug-like structure, see [link / reference]. Figure 5 The plug-type active fire extinguishing unit includes a plug body 11, a carbon dioxide storage chamber 12 located within the plug body 11, an infrared temperature sensor 13 located at the inner end of the plug body 11, a miniature water pump 14 located within the plug body 11, a hose 15 connected to the inlet end of the miniature water pump 14, and a nozzle 16 located at the inner end of the plug body 11. The hose 15 extends from the inner end of the plug body 11 and is used to draw water from an external container. The outlet end of the miniature water pump 14 is connected to the nozzle 16 for pumping water into the bag body 1. The carbon dioxide storage chamber 12 stores liquid carbon dioxide, and the output end of the carbon dioxide storage chamber 12 is located at the inner end of the plug body 11. The plug-type active fire extinguishing unit also includes a controller 17, a first solenoid valve 18 located at the outlet end of the carbon dioxide storage chamber 12, a second solenoid valve 19 located at the outlet end of the miniature water pump 14, and a water pump start button 20 located at the outer end of the plug body 11.

[0052] The controller 17 is communicatively connected to the first solenoid valve 18, the micro water pump 14, the second solenoid valve 19, the infrared temperature sensor 13, and the water pump start button 20, respectively; the controller is a single-chip microcomputer or a processor with x86 architecture, ARM architecture, or RISC-V architecture.

[0053] The sealing body 11 is provided with a hose receiving cavity 21, and the hose 15 can be retracted into or drawn out of the hose receiving cavity 21. After the hose 15 is drawn out, its end can be placed in a mineral water bottle to extract water from the bottle and pump it into the bag body 1.

[0054] The infrared temperature sensor 13 at the inner end of the sealing body 11 starts working, detecting the ambient temperature to determine whether the fire extinguishing procedure needs to be initiated. When the detected ambient temperature exceeds a preset threshold, the controller 17 activates the first solenoid valve 18, opening the output end of the carbon dioxide storage chamber 12 to release liquid carbon dioxide. Simultaneously, the user can activate the fire extinguishing unit by pressing the water pump start button 20 at the outer end of the sealing body 11. At the same time, the second solenoid valve 19 at the outlet end of the micro water pump 14 opens, drawing water from the bottle and pumping it into the bag 1. A small amount of water is sufficient to cool the small lithium battery. All electrical devices within the sealing body 11 can be powered by button batteries embedded inside.

[0055] The hook and loop fastener 10 is made of a blend of polyester and nylon. Existing hook and loop fastener products can be directly used. Both polyester and nylon have good thermal stability. The hook and loop fastener 10 is not easily flammable and is durable. The hook and loop fastener 10 is closed by physical adhesion and can be repeatedly adhered and used.

[0056] The bag body 1 is sewn together from an inner layer material 4, a middle layer material 5, and an outer layer material 6. The inner layer is a fire-retardant fiber layer with a fire-retardant coating, achieving the highest fire resistance rating for fabrics and effectively retardant flames. The inner layer material 4 is selected from one of Nomex fiber, aramid fiber, and basalt fiber, and its thickness is 2-4 mm. The fire-retardant coating on the inner layer material 4 is selected from one of silicate materials and intumescent flame retardants.

[0057] The middle layer is a heat-insulating cotton layer, and the outer layer is a waterproof and wear-resistant woven layer. The inside of the bag 1 can withstand temperatures up to 1000℃, while the maximum conductive temperature outside the bag 1 is below 100℃. The heat-insulating cotton layer is made of one of glass fiber, aluminum silicate fiber, or ceramic fiber, and its thickness is 2–5 mm. The outer layer material 6 is made of one of polyethylene fiber, polypropylene fiber, or carbon fiber, and its thickness is 2–4 mm.

[0058] The gloves 2 and the heat insulation blanket 3 are placed inside the bag 1. When in use, the gloves 2 and the heat insulation blanket 3 are taken out of the bag 1, the personnel wear the gloves 2, wrap the small lithium battery product that has caught fire with the heat insulation blanket 3, and put it into the bag 1.

[0059] Glove 2 is a heat-insulating protective glove with a fire-resistant coating. The glove 2 can withstand a high temperature of 500°C. The glove 2 is used for safety protection of personnel during the operation of transferring thermal runaway lithium battery equipment into the bag 1.

[0060] The heat insulation blanket 3 is four times the area of ​​the bag body 1. The surface of the heat insulation blanket 3 is coated with a fire-retardant layer and can withstand temperatures up to 800°C. The heat insulation blanket 3 is used to wrap small lithium battery products that have caught fire for transfer. The surface of the heat insulation blanket 3 is coated with a fire-retardant material layer; the fire-retardant material layer is selected from silicate materials and intumescent flame retardants. The material of the heat insulation blanket 3 is selected from aluminum silicate fiber and ceramic fiber. The sealing body 11 is made of silica material and can withstand temperatures exceeding 500°C. The side seals of the bag body 1 are adhered with a strong adhesive and sewn with nylon thread.

[0061] This invention provides an aviation emergency fireproof isolation bag for small lithium battery products. It is lightweight, portable, easy to store, and simple to operate, meeting the needs of use in the confined space of aircraft cabins.

[0062] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. An aviation emergency fireproof isolation bag assembly for small lithium battery products, characterized in that, The aviation emergency fireproof isolation bag assembly includes a bag body (1), gloves (2), and a heat insulation blanket (3); the gloves (2) and the heat insulation blanket (3) are both placed inside the bag body (1); The gloves (2) are heat-resistant gloves for handling small lithium battery products on fire; the heat insulation blanket (3) is used to wrap small lithium battery products on fire, and the surface of the heat insulation blanket (3) is coated with a fireproof material layer; the top of the bag (1) is provided with a handle (7); the bag (1) is made of inner layer material (4), middle layer material (5) and outer layer material (6) sewn together, the inner layer material (4) is a fireproof and flame-retardant fiber layer with a fireproof layer on the surface, the fireproof rating of the inner layer material (4) is the highest fireproof rating of fabrics, the middle layer material (5) is a heat insulation cotton layer, and the outer layer material (6) is a waterproof and wear-resistant woven layer; The bag body (1) is provided with a sealing unit at the opening (9) position. The sealing unit is used to seal the opening (9) after the small lithium battery product is put into the bag body (1). The bag body (1) is provided with a water inlet (8), and the water inlet (8) is detachably provided with a plug-type active fire extinguishing unit; the plug-type active fire extinguishing unit can actively spray fire extinguishing material based on the temperature of the bag body (1), and the plug-type active fire extinguishing unit can also draw water from the external container and spray it into the bag body (1); the plug-type active fire extinguishing unit is a plug-shaped structure, and the plug-type active fire extinguishing unit includes a plug body (11), a carbon dioxide storage chamber (12) in the plug body (11), an infrared temperature sensor (13) in the inner end of the plug body (11), a miniature water pump (14) in the plug body (11), a hose (15) connected to the inlet end of the miniature water pump (14), and a nozzle (16) in the inner end of the plug body (11); the hose (15) can extend from the inner end of the plug body (11) and be used to draw water from the external container; The outlet end of the micro water pump (14) is connected to the nozzle (16) for pumping water into the bag body (1); The carbon dioxide storage chamber (12) stores liquid carbon dioxide, and the output end of the carbon dioxide storage chamber (12) is located at the inner end of the sealing body (11); the sealing active fire extinguishing unit also includes a controller (17), a first solenoid valve (18) located at the outlet end of the carbon dioxide storage chamber (12), a second solenoid valve (19) located at the outlet end of the micro water pump (14), and a water pump start button (20) located at the outer end of the sealing body (11). The controller (17) is connected to the first solenoid valve (18), the micro water pump (14), the second solenoid valve (19), the infrared temperature sensor (13), and the water pump start button (20) respectively; the sealing body (11) is provided with a hose receiving cavity (21), and the hose (15) can be put into the hose receiving cavity (21) or pulled out from the hose receiving cavity (21).

2. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The inner layer material (4) is selected from one of Nomex fiber, aramid fiber, and basalt fiber, and the thickness of the inner layer material (4) is 2-4 mm; the fireproof coating material on the inner layer material (4) is selected from one of silicate material and intumescent flame retardant.

3. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The sealing unit is a Velcro (10) located at the opening (9).

4. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The material of the middle layer (5) is selected from one of glass fiber, aluminum silicate fiber and ceramic fiber, and the thickness of the middle layer (5) is 2 to 5 mm.

5. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The fireproof material layer of the heat insulation blanket (3) is selected from silicate materials and intumescent flame retardants; the material of the heat insulation blanket (3) is selected from aluminum silicate fiber and ceramic fiber.

6. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The outer layer material (6) is selected from one of polyethylene fiber, polypropylene fiber, and carbon fiber, and the thickness of the outer layer material (6) is 2 to 4 mm.

7. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The controller (17) is a single-chip microcomputer or a processor with x86 architecture, ARM architecture, or RISC-V architecture.

8. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The side seal of the bag (1) is bonded with a strong adhesive and sewn with nylon thread.

9. The aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The sealing body (11) is made of silicon dioxide material, which can withstand high temperatures of over 500°C.

10. An aviation emergency fireproof isolation bag assembly for small lithium battery products according to claim 1, characterized in that, The bag body (1) can withstand temperatures up to 1000°C inside, and the highest conduction temperature outside the bag body (1) is less than 100°C.

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