Edge sealing structure of zinc-air battery power bank with hot melt non-woven fabric

Abstract

The utility model discloses a kind of zinc-air battery power bank edge sealing structure of hot melt non-woven fabric, it is related to zinc-air power bank technical field.The utility model includes double-layer non-woven fabric structure, for wrapping zinc-air battery power bank main body, double-layer non-woven fabric structure includes the air-permeable layer located outer layer and the hot melt layer located inner layer;After double-layer non-woven fabric structure wraps zinc-air battery power bank main body, its edge is sealed by hot-pressing process, and only hot melt layer melts in hot-pressing process, air-permeable layer keeps unmelted state.The utility model utilizes double-layer non-woven fabric structure to wrap zinc-air battery power bank main body, its edge is sealed by hot-pressing process, and only hot melt layer melts in hot-pressing process, air-permeable layer keeps unmelted state, to make only inner layer melt to realize sealing when hot-pressing edge sealing, outer layer keeps strength unmelted, both avoid the rupture problem caused by fabric and heating head adhesion, also make edge sealing edge soft without hard edge, significantly improve processing stability and use safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of zinc-air power banks, and specifically relates to a hot-melt nonwoven fabric edge sealing structure for zinc-air battery power banks. Background Technology

[0002] A zinc-air battery power bank is a charging device that uses a zinc-air battery as its energy source. A zinc-air battery is a hybrid of a battery and a fuel cell, characterized by low cost, high energy output, and high safety. Its working principle involves using oxygen from the air as the positive electrode active material and metallic zinc as the negative electrode active material to generate electrical energy through an electrochemical reaction. Due to the high safety of zinc-air batteries, the use of flexible fabric as the casing offers significant advantages.

[0003] However, many problems arise when using non-woven fabrics or other materials for edge sealing. For example, when using hot pressing, the fabric is difficult to detach from the heating head when it melts, causing a break between the molten and unheated areas. In addition, using flat molds such as hot pressing can create hard edges on the fabric, which can easily cause cuts and other problems.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a hot-melt nonwoven fabric edge-sealing structure for zinc-air battery power banks, comprising: A double-layer non-woven fabric structure is used to wrap the main body of the zinc-air battery power bank. The double-layer non-woven fabric structure includes a breathable outer layer and a heat-melting inner layer. After the zinc-air battery power bank is wrapped with a double-layer non-woven fabric structure, its edges are sealed by a hot-pressing process. During the hot-pressing process, only the hot-melt layer melts, while the breathable layer remains unmelted.

[0006] The breathable layer is made of heat-resistant non-woven fabric.

[0007] The hot-melt layer is a breathable non-woven fabric that can melt at low temperatures.

[0008] The weight of heat-resistant nonwoven fabric is 20g-100g / cm².

[0009] Low-temperature melting breathable nonwoven fabrics have a basis weight of 0.5-20 g / cm².

[0010] The material of the heat-resistant nonwoven fabric is selected from any one of polypropylene (PP), polyester (PET), or adhesive fiber.

[0011] The low-temperature melting breathable nonwoven material is selected from any one of polyamide (PA), polyethersulfone (PES), ethylene-vinyl acetate copolymer (EVA), and thermoplastic polyurethane elastomer (TPU).

[0012] Mesh fabric is placed on the side of the hot-melt layer facing the main body of the zinc-air battery power bank.

[0013] The mesh fabric is fixed to the breathable nonwoven fabric that can be melted at low temperature using a hot-melt process.

[0014] After the double-layer non-woven fabric structure is heat-sealed, the edges will be trimmed.

[0015] This utility model has the following beneficial effects: This utility model utilizes a double-layer non-woven fabric structure to wrap the main body of the zinc-air battery power bank. Its edges are sealed through a hot-pressing process. During the hot-pressing process, only the heat-melting layer melts, while the breathable layer remains unmelted. This ensures that only the inner layer melts to achieve a seal during hot-pressing, while the outer layer maintains its strength and does not melt. This avoids the problem of breakage caused by the fabric sticking to the heating head, and also makes the sealed edge soft without any hard edges, completely eliminating the risk of cutting hands and significantly improving processing stability and usage safety.

[0016] This invention places a mesh fabric on the side of the hot-melt layer facing the main body of the zinc-air battery power bank. The mesh fabric is fixed to the low-temperature energy-melting breathable non-woven fabric through a hot-melt process, eliminating the need for additional adhesive application. This simplifies the production process and reduces costs. When the product is placed flat on a table, the mesh fabric extends the breathable path on the side of the product to the mesh fabric position, improving the side breathability.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present utility model Figure 1 A magnified view of the structure at point A in the middle; Figure 3 This is a schematic diagram showing the installation position of the mesh fabric of this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Double-layer non-woven fabric structure; 101. Breathable layer; 102. Hot-melt layer; 2. Mesh fabric. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-3 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0021] Please see Figure 1 , Figure 2 As shown: This embodiment provides a hot-melt nonwoven fabric edge sealing structure for a zinc-air battery power bank, including a double-layer nonwoven fabric structure 1 for wrapping the main body of the zinc-air battery power bank. The double-layer nonwoven fabric structure 1 includes an outer breathable layer 101 and an inner hot-melt layer 102. After the double-layer non-woven fabric structure 1 wraps the main body of the zinc-air battery power bank, its edges are sealed by hot pressing. During the hot pressing process, only the hot-melt layer 102 melts, while the breathable layer 101 remains unmelted. This ensures that only the inner layer melts to achieve a seal during hot pressing, while the outer layer maintains its strength and does not melt. This avoids the problem of breakage caused by the fabric sticking to the heating head, and also makes the sealed edge soft without any hard edges, completely eliminating the risk of cutting hands and significantly improving processing stability and usage safety.

[0022] like Figure 2 As shown, the breathable layer 101 is a heat-resistant non-woven fabric, which has breathability. The heat-resistant nonwoven fabric has a basis weight of 20g-100g / cm², which ensures a sealing effect after melting without affecting the breathability of the inner layer. The material of the heat-resistant nonwoven fabric is selected from any one of polypropylene (PP), polyester (PET), and adhesive fiber, with polyester (PET) being preferred. Polyester (PET) has strong heat resistance, high structural strength, and is better suited for hot pressing processes, and its air permeability is stable.

[0023] like Figure 2 As shown, the hot-melt layer 102 is a breathable non-woven fabric that can be melted at low temperatures. The weight of the breathable non-woven fabric that can be melted at low temperatures is 0.5-20 g / cm², which ensures the sealing effect after melting without affecting the breathability of the inner layer. The low-temperature meltable breathable nonwoven material is selected from any one of polyamide (PA), polyethersulfone (PES), ethylene-vinyl acetate copolymer (EVA), and thermoplastic polyurethane elastomer (TPU), preferably thermoplastic polyurethane elastomer (TPU). TPU has high softness after melting, which can make the sealing edge more comfortable to the touch, and it has good melt sealing and is not easy to crack.

[0024] like Figure 2 , Figure 3 As shown, it also includes a mesh fabric 2, which is set on the side of the hot melt layer 102 facing the main body of the zinc-air battery power bank. The mesh fabric 2 is fixed to the low-temperature energy-melting breathable non-woven fabric through a hot melt process, eliminating the need for additional adhesive application, simplifying the production process and reducing costs. Thus, when the product is placed flat on a table, the mesh fabric 2 can extend the breathable path on the side of the product to the position of the mesh fabric 2, improving the side breathability.

[0025] like Figure 1As shown, the edges of the double-layer non-woven fabric structure 1 will be cut after heat sealing to ensure that it is flat and burr-free, which not only improves the neatness of the product appearance, but also further reduces the risk of use.

[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A hot-melt nonwoven fabric edge-sealing structure for a zinc-air battery power bank, characterized in that, include: A double-layer nonwoven fabric structure (1) is used to wrap the main body of the zinc-air battery power bank. The double-layer nonwoven fabric structure (1) includes an outer breathable layer (101) and an inner hot melt layer (102). After the double-layer nonwoven fabric structure (1) wraps the main body of the zinc-air battery power bank, its edges are sealed by hot pressing. During the hot pressing process, only the hot melt layer (102) melts, while the breathable layer (101) remains unmelted.

2. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 1, characterized in that, The breathable layer (101) is a heat-resistant non-woven fabric.

3. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 1, characterized in that, The hot melt layer (102) is a breathable nonwoven fabric that can melt at low temperatures.

4. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 2, characterized in that, The weight of the heat-resistant nonwoven fabric is 20g-100g / cm².

5. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 3, characterized in that, The low-temperature melt-permeable nonwoven fabric has a basis weight of 0.5-20 g / cm².

6. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 4, characterized in that, The heat-resistant nonwoven fabric is made of any one of polypropylene (PP), polyester (PET), or adhesive fiber.

7. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 5, characterized in that, The low-temperature melt-permeable nonwoven material is selected from any one of polyamide (PA), polyethersulfone (PES), ethylene-vinyl acetate copolymer (EVA), and thermoplastic polyurethane elastomer (TPU).

8. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 1, characterized in that, It also includes a mesh fabric (2), which is disposed on the side of the hot melt layer (102) facing the main body of the zinc-air battery power bank.

9. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 8, characterized in that, The mesh fabric (2) is fixed to a low-temperature molten breathable nonwoven fabric by a hot-melt process.

10. The edge-sealing structure of a zinc-air battery power bank made of hot-melt nonwoven fabric according to claim 1, characterized in that, The edges of the double-layer nonwoven fabric structure (1) will be cut after hot-press sealing.

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