Fireproof and explosion-proof portable delivery bag for power banks

Abstract

We provide fireproof and explosion-proof transport bags for mobile power supplies and courier services. [Solution] The fireproof and explosion-proof transport bag for mobile power supplies has a lid 2 with a hook-and-loop fastener surface 5 on the inside at the top of the bag body 1, a storage case 3 inside, a hook-and-loop fastener hook surface 4 on the outside, and reinforcing strips 8 fixed to the four corners. An insulating buffer layer with a fireproof layer (silicone glass fiber) on the outside is fixed to the outside of the inner lining layer, there is a pressure outlet 7 at the seam of the bag body, and the opening of the bag is sealed with a zipper 9. By arranging five layers of material in stages from the inside to the outside, a composite structure that integrates antistatic, heat insulating, pressure relief, explosion-proof, and fireproof properties is realized, and it can respond to all risk scenarios in the transport of mobile power supplies.

Description

Technical Field

[0001] The utility model belongs to the technical field of delivery bags, and specifically relates to a fireproof and explosion-proof transport bag for delivery of mobile power supplies.

Background Art

[0002] With the advent of the high-speed Internet in the 5G era, many industries have changed. Modern people's dependence on smartphones has become increasingly strong, and the daily usage time has also become longer. As a result, the battery life has become a source of anxiety. To eliminate the battery anxiety, the demand for mobile power supplies has increased rapidly year by year, and most of them are purchased online and delivered by express delivery. However, due to the instability of lithium batteries themselves, there are cases where delivery vehicles catch fire during the transportation of lithium battery products every year, resulting in huge property losses and affecting public safety. In order to address the above problems, a fireproof and explosion-proof transport bag for mobile power supplies for express delivery is proposed.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The purpose of the utility model is to provide a fireproof and explosion-proof transport bag for mobile power supplies for express delivery with a fire and explosion prevention function to solve the problem that the lithium battery catches fire due to reasons such as pressure, high temperature, and internal short circuit during the transportation of the mobile power supply, affecting the transportation safety of express delivery.

Means for Solving the Problems

[0004] To achieve the above object, the utility model provides the following technical means: a fireproof and explosion-proof transport bag for mobile power supplies with a bag body, on which a lid is fixed at the upper part, a storage case is provided inside the bag body, and a hook surface with a magic sticker is fixed on the outside; a rough surface with a magic sticker is fixed inside the lid, strips for reinforcing the edges are fixed at all four corners of the bag body, a pressure outlet is provided at the stitching part, and a zipper is provided at the opening. By adopting the aforementioned technical solutions, the product's size and appearance are similar to conventional envelopes and courier bags, and it is smaller than conventional courier file bags; its thickness is typically 2 cm or less, and the weight of an A4-sized product is kept to 400 g, thus minimizing waste during transportation.

[0005] To further explain the aforementioned technical solution, the bag body is provided with an inner lining layer, an insulating buffer layer is fixed to the outside of it, and a fire-resistant layer (silicone glass fiber) is fixed to the outside of the insulating buffer layer. By employing the aforementioned technical solutions, the bag achieves gradual protection from the inside out with five layers of material, providing gradual protection functions including antistatic, heat insulating, cushioning, pressure reducing, explosion-proof, and fire-resistant properties. To further explain the aforementioned technical configuration, the adhesive surface and the hooking surface are bonded together, and two filling blocks are provided in the storage case. By employing the aforementioned technical means, the storage case can be sealed to prevent short circuits or overheating of the portable power supply, thus preventing smoke and electrolyte leakage, and also to block external ignition sources from coming into contact with the power supply inside the bag.

[0006] To further explain the aforementioned technical solution, a zipper-type sealing method is employed at the opening and closing part of the bag. By employing the aforementioned technical means, even if the mobile power source spontaneously ignites due to the intervention of the closed zipper, the oxygen concentration in the air inside the bag can be controlled to an extremely low range. As a result, even if the power source becomes uncontrollable, only heat will be generated, and a fire will not occur. As a more detailed explanation of this technical means, the inner layer is an anti-static electronic fabric. By adopting the aforementioned technical solution, an anti-static effect can be achieved.

[0007] To further explain the aforementioned technical solution, in the process of forming the integrated bag, first, hidden stitching is applied to the three sides that require edging (in order to ensure production convenience and an optimal process, this embodiment employs an integrated cutting method, where the lower part is folded to form the internal space of the bag, and the upper part is left unfolded to maintain its height, and this part is used as a lid to achieve airtightness); and when applying hidden stitching to both the left and right ends of the opening side of the bag, a notch no wider than 1 cm is provided to form a pressure release vent. By adopting the aforementioned technical solution, the installation of a pressure outlet solves the problem of large amounts of smoke filling the internal space of the bag when a mobile power supply spontaneously ignites or explodes violently. This prevents structural damage to the bag and allows for rapid release of gas.

[0008] To further explain the aforementioned technical solution, the insulation layer in question is a flexible insulation material with a low thermal conductivity coefficient. By employing the aforementioned technical solution, the high-temperature heat transfer problem that occurs when lithium batteries spontaneously ignite can be solved; this is because the specially designed insulating layer structure prevents the temperature from rising high enough to burn surrounding materials before the heat is transferred to the outside. [Effects of the Invention]

[0009] Compared to conventional technology, the beneficial effects of this new practical model are as follows: This new, practical, fireproof and explosion-proof transport bag for mobile power supplies features a structure with five layers of material arranged in stages from the inside to the outside of the bag, achieving integrated protection functions of antistatic, heat insulation, pressure distribution, explosion protection, and fire protection, addressing all risks in the transport of mobile power supplies; the internal antistatic design prevents static electricity generated by friction during transport, avoiding short circuits of electronic components; the bag opening uses a zipper for initial opening and closing, creating an effective sealed space; in addition, the structure is sealed by bonding the adhesive surface and the hook surface, and the four corners are equipped with... The reinforced strips improve the tensile strength of the corners, and the storage case is secondarily tightly closed, ensuring the overall stability of the structure; the flattened design, similar to a flat envelope bag, limits the air storage capacity within the enclosed space, so even if spontaneous ignition occurs due to a short circuit, the lack of oxygen will prevent the ignition from continuing; and the design of the insulation layer effectively solves the problem of high temperature transmission that occurs after a short circuit in the mobile power supply (although the previous method prevented the outward ejection of flames, the chemical reaction of the electrolyte inside the lithium battery still continues). The high-temperature phenomenon of mobile power supplies still exists; due to heat transfer, the external packaging (e.g., cardboard box) may spontaneously ignite at high temperatures, potentially causing a fire; if the mobile battery short-circuits, a large amount of smoke is instantly generated, and a powerful gas expansion phenomenon occurs. In a confined space, this pressure can easily exceed the pressure resistance limit of the sutures, potentially causing the entire structure to break down or the sealing to fail; therefore, a fundamental countermeasure is taken: first, explosion-proof thread with a tensile strength exceeding 7 kg is used to perform initial sealing of the structure, and then, when reinforcing the edges, fire-proof thread with a tensile strength exceeding 3 kg is used for a second edge fixing treatment to ensure the reliability of the structure; after more than 200 tests on actual examples, it was confirmed that this structure can fully withstand the gas expansion pressure caused by the spontaneous combustion of mobile power supplies; however, to prevent extreme situations, as an explosion-proof measure, assuming the product satisfies the original design principles, a rebound hole no larger than 1 cm is provided at the joint, which functions as a pressure outlet; while ensuring the overall airtightness (oxygen isolation) of the product, gas is rapidly discharged through this pressure outlet, avoiding impact on the structure due to continuous gas release;This mechanism not only prevents flames from forming inside, but also prevents the high internal temperature from transferring to external materials and causing a fire, thus fundamentally blocking the transmission of risk. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a diagram of the overall structure of a single, practical, new model. [Figure 2] Figure 2 is a cross-sectional view of this new, practical bag. [Modes for carrying out the invention]

[0011] The following will clearly and completely describe the technical configuration of the embodiments of this utility model with reference to the accompanying diagrams; obviously, the embodiments described herein are only a part of the utility model and do not include all of it; all other embodiments that can be obtained by a person skilled in the art without creative work based on the embodiments of this utility model are included in the scope of protection of this utility model. To further understand the contents of this utility model, the following detailed explanation will be provided with reference to the drawings. [Examples]

[0012] Referring to Figures 1 and 2, this new type of fireproof and explosion-proof delivery bag for mobile power supplies comprises a bag body 1 and a lid 2 fixed to its top, the material of the lid 2 being the same as that of the bag body 1; a storage case 3 is provided inside the bag body 1, with a magnetic clasp 4 fixed to its outside, a magnetic fur surface 5 fixed to the inside of the lid 2, and strips 8 that reinforce the edges are fixed to all four corners of the bag body 1; a sewn zipper 9 is provided at the opening inside the bag body 1 to enhance airtightness.

[0013] Referring to Figure 2, the bag 1 has an inner coating layer 6 on the inside, a heat insulating buffer layer 10 fixed to the outside of it, and a fire-resistant layer (silicone glass fiber layer) 11 fixed to the outside of the heat insulating buffer layer 10. This silicone glass fiber layer 11 has excellent fire-resistant properties; the bag 1 has five layers of material arranged in stages from the inside to the outside, achieving staged protection of antistatic, heat insulating buffer, pressure release, explosion-proof, and fire-resistant properties; if the product thickness is 10 mm, even if the extremely high temperature generated after the spontaneous ignition of a lithium battery is transmitted to the surface, the temperature can be kept below 163°C (making it possible to prevent spontaneous ignition of delivery boxes). If it is necessary to lower the temperature of the outer layer even further, the product thickness can be increased to enhance the effect; in actual laboratory tests, it has been confirmed that the temperature can be kept below 120°C even with a thickness of 20 mm.

[0014] Referring to Figures 1 and 2, the adhesive surface 5 and the snagging surface 4 adhere to each other, thereby sealing the storage case 3. The seams of the bag body 1 are provided with a pressure outlet 7 to prevent a large amount of gas from being rapidly released under extreme conditions; the zipper 9 is a structure that seals the opening of the storage case, and the zipper 9 keeps the amount of air inside the delivery bag at an extremely low level; the inner lining layer 6 is an anti-static electronic fabric that prevents the generation of static electricity, prevents short circuits in electronic components, and prevents the mobile power supply from spontaneously igniting due to a short circuit.

[0015] Operating principle The lid 2 at the top of the bag 1 double-seals the storage case 3 by adhering the outer zipper 9 and the inner magnetic adhesive surface 5 to the outer magnetic adhesive hook surface 4, thereby preventing leakage of the electrolyte of the power supply; it also prevents flames from being generated when smoke expands due to short circuits or overheating, breaking the sealed structure of the bag and replacing the oxygen inside, thus preventing external fire sources from coming into contact with the power supply inside; the reinforcing strips 8 at the four corners strengthen the sealing part and the corners of the bag 1, preventing tearing due to impact; the inner lining layer 6 uses an anti-static electronic fabric to prevent short circuits caused by static electricity generated by friction during transport, and the outer heat-insulating buffer layer 10 absorbs heat generation and minor impact energy from the power supply, reducing the risk of thermal failure; the fireproof layer 11 is high temperature resistant and blocks the spread of fire caused by thermal failure or minor combustion of the power supply, preventing flames from penetrating the bag 1.

[0016] It is necessary to explain that in this paper, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply the existence of an actual relationship or order between them; and terms such as "include" mean non-exclusive inclusion, meaning that a process, method, article, or apparatus that includes a set of elements not only includes other elements not explicitly listed, but may also include elements specific to that process, method, article, or apparatus. Although embodiments of the present invention have been shown and described, those skilled in the art can modify, alter, replace, and transform these embodiments in various ways without departing from the principles and spirit of the utility model; the technical scope of the present invention is limited by the appended claims and their equivalents. [Explanation of Symbols]

[0017] 1. Bag body; 2. Lid; 3. Storage case; 4. Anti-stick surface; 5. Anti-stick surface; 6. Inner lining layer; 7. Pressure outlet; 8. Reinforcement strip to strengthen the edges; 9. Zipper; 10. Thermal insulation buffer layer; 11. Fireproof layer (silicone glass fiber layer)

Claims

1. A delivery bag equipped with a fireproof and explosion-proof delivery bag for mobile power supply (1), A lid (2) is fixed to the top of the bag body (1), a storage case (3) is provided inside, a hook surface (4) with magic adhesive is fixed to the outside, and a fur surface (5) with magic adhesive is fixed to the inside of the lid (2); edge reinforcing strips (8) are fixed to all four corners of the bag body (1), pressure outlets (7) are provided at the seams, and a zipper (9) is provided at the opening. A fireproof, explosion-proof transport bag for mobile power supplies and courier services, characterized by the following features.

2. In the fireproof and explosion-proof delivery bag for mobile power supply according to claim 1, The bag (1) has an inner lining layer (6) on its inside, an insulating buffer layer (10) is fixed to the outside of that, and a fire-resistant layer (such as silicone glass fiber) (11) is fixed to the outside of that. A fireproof, explosion-proof transport bag for mobile power supplies and courier services, characterized by the following features.

3. In the fireproof and explosion-proof delivery bag for mobile power supply according to claim 1, The adhesive side (5) and the adhesive hook side (4) are bonded to each other. A fireproof, explosion-proof transport bag for mobile power supplies and courier services, characterized by the following features.

4. In the fireproof and explosion-proof delivery bag for mobile power supply according to claim 1, A pressure outlet (7) is provided at the edge of the bag body (1). A fireproof, explosion-proof transport bag for mobile power supplies and courier services, characterized by the following features.

5. In the fireproof and explosion-proof delivery bag for mobile power supply according to claim 1, The inner lining layer (6) is an electronic fabric for static electricity prevention. A fireproof, explosion-proof transport bag for mobile power supplies and courier services, characterized by the following features.

6. In the fireproof and explosion-proof delivery bag for mobile power supply according to claim 2, The bag has a sewn-on zipper (9) for opening and closing. A fireproof, explosion-proof transport bag for mobile power supplies and courier services, characterized by the following features.

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