Novel packaging structure connected with Busbar fuse

Abstract

The utility model discloses a novel packaging structure connected with a Busbar fuse, which comprises an aluminum bar fuse, and a plurality of layers of adhesive tapes are wound on the aluminum bar fuse. And the aluminum bar fuse is connected with the battery. The aluminum bar fuse comprises a fusing part, and the adhesive tape is wound on the fusing part; the fusing part is provided with a plurality of notches to form a plurality of fusing intervals. The adhesive tape is a polyimide film silica gel adhesive tape. According to the utility model, the plurality of layers of polyimide film tape silica gel adhesive tape are wound on the aluminum bar fuse, so that compared with the prior art in which the Busbar fuse is packaged and connected by using plastic injection molding or ceramic sintering equipment, the problems of high temperature resistance, anti-splashing performance and large occupied space required by the packaging of the Busbar fuse are solved.

Description

Technical Field

[0001] This utility model relates to the field of circuit protection device technology, and in particular to a novel packaging structure for connecting a Busbar fuse. Background Technology

[0002] With the development of new energy batteries, the current in battery packs is gradually increasing. If a fault occurs during battery charging or discharging, causing a sharp increase in current, the fuse will blow when the current exceeds its rated value. This fuse melts, generating a large amount of heat and causing metal to splatter, potentially leading to short circuits and overheating of components such as wires and batteries, or even a fire. Therefore, a good fuse encapsulation is crucial. Conventional busbar fuse encapsulations cannot withstand the high temperatures generated by a large current blowing the fuse. Conventional high-temperature-resistant encapsulation structures are space-consuming and have high manufacturing costs. The large space and high manufacturing cost of conventional encapsulation technologies are due to the following reasons: encapsulation manufacturing requires specialized equipment, such as plastic injection molding and ceramic sintering equipment, to encapsulate the busbar fuse; simultaneously, the battery pack needs sufficient space to house the high-temperature-resistant encapsulation structure for the busbar fuse. However, solving both problems simultaneously in production would significantly increase costs and occupy other structural space in the customer's product, and customers may not be able to provide enough space for the encapsulation structure.

[0003] Therefore, it is crucial to address the challenges of high-temperature resistance in high-current busbar fuse packaging, the limited space of the fuse within the battery pack, and the cost of packaging processes. Utility Model Content

[0004] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a novel packaging structure for connecting Busbar fuses that is resistant to high temperature, splash-proof, and occupies little space.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A novel encapsulation structure for connecting a Busbar fuse includes: an Albar fuse with several layers of adhesive tape wound around it; the Albar fuse being connected to a battery.

[0007] Preferably, the Albar fuse includes a fusible portion, and the adhesive tape is wrapped around the fusible portion.

[0008] Preferably, several cuts are designed in the fusion section to form several fusion intervals.

[0009] Preferably, the adhesive tape is a polyimide film tape with silicone adhesive.

[0010] Preferably, the adhesive tape covers an area extending from the outer edge of the cut towards the end of the Alba fuse, with an extension range greater than 5 mm.

[0011] Preferably, positioning holes are designed at both ends of the Alba fuse.

[0012] Preferably, the fuse section is designed with a bend at each of the two ends of the Albar fuse.

[0013] The beneficial effects of this utility model are:

[0014] This invention solves the problems of complex packaging and manufacturing processes, large space occupation, and high manufacturing costs associated with existing technologies that use plastic injection molding or ceramic sintering equipment to encapsulate and connect Busbar fuses by wrapping several layers of polyimide film with silicone adhesive tape around the fuse. Furthermore, the design of several cuts and the formation of several fusing intervals in the fuse-breaking section reduces the amount of slag generated during fusing. Combined with the high-temperature resistant polyimide film with silicone adhesive tape, it solves the problem of slag splattering during fuse fusing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a novel packaging structure for connecting a Busbar fuse according to this utility model;

[0016] Figure 2 This is an exploded schematic diagram of a novel encapsulation structure for connecting a Busbar fuse.

[0017] Figure 3 The diagram shows the structure of an aluminum bar fuse.

[0018] The components in the attached diagram are labeled as follows:

[0019] 1. Alba fuse; 2. Adhesive tape; 3. Fuse section; 4. Cutout; 5. Fuse interval; 6. Positioning hole; 7. Bending section. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] Example:

[0022] This embodiment describes a novel encapsulation structure for connecting a Busbar fuse.

[0023] like Figure 1 As shown, Figure 1This is a schematic diagram of a novel encapsulation structure for connecting a Busbar fuse according to this utility model. The novel encapsulation structure for connecting a Busbar fuse includes: an Alba fuse 1, with several layers of adhesive tape 2 wound around the Alba fuse 1; the Alba fuse 1 is connected to a battery.

[0024] like Figure 2 , 3 As shown, Figure 2 This is an exploded schematic diagram of a novel encapsulation structure for connecting a Busbar fuse. Figure 3 This is a schematic diagram of the Albar fuse structure. The Albar fuse 1 includes a fusing part 3, and the adhesive tape 2 is wrapped around the fusing part 3.

[0025] To prevent the fuse from generating a large amount of slag when it blows due to excessive current, this invention designs several cuts 4 in the fuse section 3 and forms several fuse intervals 5 to reduce the amount of slag generated when the fuse blows.

[0026] Furthermore, to achieve a high-temperature resistant and non-splattering encapsulation effect for the fuse, the adhesive tape 2 is selected as a polyimide film tape with silicone adhesive. This polyimide film tape with silicone adhesive is a tape with a polyimide film as the substrate and a single-sided coating of silicone pressure-sensitive adhesive. This adhesive tape possesses many excellent properties, such as excellent high-temperature resistance, enabling long-term use in high-temperature environments, typically withstanding temperatures of 260°C or even higher, and even higher temperatures for short periods; it also has good chemical resistance, exhibiting strong resistance to various chemicals such as acids, alkalis, and solvents, and is not easily corroded or dissolved, making it suitable for use in various chemical environments; and it has good insulation properties, as the polyimide film itself has good electrical insulation properties, which are further enhanced by the application of silicone adhesive. In this invention, the use of polyimide film tape with silicone adhesive for encapsulation ensures that the encapsulated fuse does not easily melt at high temperatures upon fusing, and that molten splatter is contained within the structure, preventing it from splashing out. In addition, this adhesive tape has high bonding strength, can firmly adhere to various material surfaces, and can maintain good bonding effect even after long-term use.

[0027] To improve the adhesion between the adhesive tape and the Alba fuse, the adhesive tape 2 extends from the outer edge of the cut 4 to the end of the Alba fuse 1, with an extension range greater than 5mm.

[0028] To facilitate the positioning and connection between the Alba fuse and the battery, positioning holes 6 are designed at both ends of the Alba fuse 1.

[0029] Example 2

[0030] Based on Example 1, this example introduces a novel encapsulation structure for connecting a Busbar fuse with optimal encapsulation performance.

[0031] like Figure 1 , 2 As shown, Figure 1 This is a schematic diagram of a novel encapsulation structure for connecting a Busbar fuse according to this utility model. Figure 2 This is an exploded view of a novel encapsulation structure for connecting a Busbar fuse. The novel encapsulation structure includes: an Albar fuse 1, with two layers of adhesive tape 2 wound around it. The adhesive tape 2 is made of polyimide film with silicone adhesive tape, achieving a high-temperature resistant encapsulation effect for the Albar fuse and preventing molten slag from splashing. Positioning holes 6 are designed at both ends of the Albar fuse 1, facilitating the positioning and connection of the Albar fuse to the battery.

[0032] The Albar fuse 1 includes a fusible part 3, and the adhesive tape 2 is wrapped around the fusible part 3.

[0033] Using polyimide film wrapped with silicone adhesive tape for encapsulation and sealing is a more efficient and cost-effective method than using plastic injection molding or ceramic sintering equipment to encapsulate and connect Busbar fuses in existing technologies.

[0034] like Figure 3 As shown, Figure 3 The diagram shows a schematic of an aluminum bar fuse. In this embodiment, six cuts 4 are designed in the fuse-breaking section 3, forming three fuse-breaking intervals 5. When the fuse blows, it will not generate a large amount of molten slag.

[0035] In addition, since the battery will heat up and expand during use, in order to ensure stable use of the battery, bending portions 7 are designed between the two ends of the fuse part 3 and the Alba fuse 1. When the battery heats up and expands, the bending portions increase the flexible space and ensure the stability of the connection between the battery and the Alba fuse.

[0036] This invention only optimizes the product structure and manufacturing process; other operating methods remain unchanged. For example, after the polyimide film tape and silicone adhesive tape are wrapped around the Busbar fuse, they are placed in the fixture and pressed tightly to prevent the Albar fuse 1 and the polyimide film tape and silicone adhesive tape 2 from separating.

[0037] This invention solves the problems of complex manufacturing process, large space occupation, and high manufacturing cost of connecting busbar fuses by selecting packaging materials, optimizing product structure, and optimizing process; it also solves the problems of high temperature resistance, splash resistance, and large space occupation required for connecting busbar fuse packaging.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel encapsulation structure for connecting a Busbar fuse, characterized in that, include: An Alba fuse (1) is provided, with several layers of adhesive tape (2) wrapped around it; the Alba fuse (1) is connected to a battery.

2. The novel encapsulation structure for connecting a Busbar fuse according to claim 1, characterized in that: The Alba fuse (1) includes a fusible part (3), and the adhesive tape (2) is wrapped around the fusible part (3).

3. The novel encapsulation structure for connecting a Busbar fuse according to claim 2, characterized in that: Several cuts (4) are designed in the fuse section (3) to form several fuse intervals (5).

4. The novel encapsulation structure for connecting a Busbar fuse according to claim 1, characterized in that: The adhesive tape (2) is a polyimide film tape with silicone adhesive.

5. The novel encapsulation structure for connecting a Busbar fuse according to claim 3, characterized in that: The adhesive tape (2) covers an area extending from the outer edge of the cut (4) to the end of the Alba fuse (1), with an extension range greater than 5 mm.

6. The novel encapsulation structure for connecting a Busbar fuse according to claim 1, characterized in that: Positioning holes (6) are designed at both ends of the Alba fuse (1).

7. A novel encapsulation structure for connecting a Busbar fuse according to claim 2, characterized in that: The two ends of the fuse section (3) to the Alba fuse (1) are respectively designed with bent sections (7).

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