A flexible printed coil

Abstract

The utility model relates to the technical field of electronic components discloses a kind of flexible printed coil, including coil conductor, the lower part of coil conductor is provided with flexible substrate, insulating layer is provided between flexible substrate and coil conductor, the upper part of coil conductor is provided with anti-tear layer, the upper part of anti-tear layer is provided with wear layer, the upper part of wear layer is provided with protective layer, and the left and right ends of coil conductor are provided with electrical connection sheet.The utility model discloses a kind of flexible printed coil, by polyimide film as flexible substrate, and in combination with graphene reinforcing layer, so that flexible printed coil can easily realize the bending and distortion of various angles, ultra-high molecular weight polyethylene wear-resistant coating can effectively resist external friction, the anti-tear layer woven by aramid fiber can disperse stress, prevent tearing, significantly improve the durability of product in complex use environment, reduce the failure caused by abrasion and tearing, prolong the service life of product.

Description

Technical Field

[0001] This utility model relates to the field of electronic component technology, and in particular to a flexible printed coil. Background Technology

[0002] With the rapid development of electronic devices towards miniaturization, lightweighting, and multifunctionality, unprecedented demands are being placed on the flexibility, reliability, and durability of electronic components. Traditional rigid coils, due to frequent bending and friction during long-term use, are prone to wire breakage, leading to equipment malfunctions and severely shortening product lifespan. Utility Model Content

[0003] The main objective of this invention is to provide a flexible printed coil that can effectively solve the problems in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a flexible printed coil, including a coil conductor, a flexible substrate disposed at the lower part of the coil conductor, an insulating layer disposed between the flexible substrate and the coil conductor, a tear-resistant layer disposed at the upper part of the coil conductor, a wear-resistant layer disposed at the upper part of the tear-resistant layer, a protective layer disposed at the upper part of the wear-resistant layer, and contact plates disposed at the left and right ends of the coil conductor.

[0005] Preferably, the flexible substrate is a polyimide film, and a graphene reinforcement layer with a thickness of 0.006 mm to 0.008 mm is provided on the surface of the polyimide film.

[0006] Preferably, the insulating layer is made of parylene and has a thickness of 0.005 mm to 0.01 mm.

[0007] Preferably, the wear-resistant layer is an ultra-high molecular weight polyethylene coating with a thickness of 0.02 mm to 0.05 mm.

[0008] Preferably, the tear-resistant layer is an aramid fiber woven layer with a thickness of 0.02 mm to 0.05 mm.

[0009] Preferably, the protective layer is a transparent silicone rubber layer with a thickness of 0.03 to 0.08 mm.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] By using polyimide film as a flexible substrate and combining it with a graphene reinforcement layer, the flexible printed coil can easily be bent and twisted at various angles. The ultra-high molecular weight polyethylene wear-resistant coating can effectively resist external friction, and the aramid fiber woven tear-resistant layer can disperse stress and prevent tearing, significantly improving the product's durability in complex operating environments, reducing failures caused by wear and tear, and extending the product's service life. The silicone rubber protective layer can isolate moisture, dust, and chemicals, protecting the internal structure from external environmental corrosion, ensuring stable operation of the product in various harsh environments, and improving product reliability. The addition of a parylene insulation layer effectively isolates the coil conductor from the flexible substrate, greatly reducing the risk of leakage and providing reliable electrical protection for stable product operation, further enhancing the product's safety and stability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a flexible printed coil according to the present invention.

[0013] In the diagram: 1. Flexible substrate; 2. Insulation layer; 3. Coil conductor; 4. Tear-resistant layer; 5. Wear-resistant layer; 6. Protective layer; 7. Connector. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figure 1 As shown, a flexible printed coil includes a coil conductor 3, a flexible substrate 1 at the bottom of the coil conductor 3, an insulating layer 2 between the flexible substrate 1 and the coil conductor 3, a tear-resistant layer 4 at the top of the coil conductor 3, a wear-resistant layer 5 at the top of the tear-resistant layer 4, a protective layer 6 at the top of the wear-resistant layer 5, and contact plates 7 at both ends of the coil conductor 3. In summary, by using a polyimide film as the flexible substrate 1 and combining it with a graphene reinforcing layer, the flexible printed coil can easily achieve bending and twisting at various angles. The ultra-high molecular weight polyethylene wear-resistant coating can effectively resist external friction, and the aramid fiber woven tear-resistant layer... The crack layer 4 can disperse stress and prevent tearing, significantly improving the product's durability in complex operating environments, reducing failures caused by wear and tear, and extending the product's service life. The silicone rubber protective layer 6 can isolate moisture, dust, and chemicals, protecting the internal structure from external environmental corrosion, ensuring stable operation of the product in various harsh environments, and improving product reliability. The setting of the parylene insulation layer 2 effectively isolates the coil conductor 3 from the flexible substrate 1, greatly reducing the risk of leakage current, providing reliable electrical protection for the stable operation of the product, and further improving the product's safety and stability.

[0016] The flexible substrate 1 is a polyimide film, and a graphene reinforcement layer with a thickness of 0.006 mm to 0.008 mm is formed on the surface of the polyimide film. The flexible substrate 1 uses a polyimide film as the base flexible substrate 1. This material has excellent flexibility, insulation and high temperature resistance. A graphene reinforcement layer with a thickness of 0.006 mm to 0.008 mm is formed on the surface of the polyimide film. Graphene further improves the comprehensive performance of the substrate with its high mechanical strength, so that the substrate has a certain tensile strength while maintaining flexibility.

[0017] The insulating layer 2 is made of parylene material with a thickness of 0.005 mm to 0.01 mm. A layer of parylene material with a thickness of 0.005 mm to 0.01 mm is coated on the graphene reinforcement layer. Parylene has good insulation properties, flexibility and chemical stability. It can not only effectively isolate the coil conductor 3 from the flexible substrate 1 to prevent leakage, but also provide buffer protection for the coil conductor 3 during bending, which can significantly improve the electrical safety of the product.

[0018] The wear-resistant layer 5 is an ultra-high molecular weight polyethylene coating with a thickness of 0.02mm to 0.05mm. On the surface of the tear-resistant layer 4, an ultra-high molecular weight polyethylene wear-resistant coating with a thickness of 0.02mm to 0.05mm is covered. This coating has extremely high wear resistance and self-lubricating properties, which can effectively resist external friction, protect the coil conductor 3 from wear, and thus extend the service life of the product.

[0019] The tear-resistant layer 4 is an aramid fiber braided layer with a thickness of 0.02mm to 0.05mm. It is bonded to the coil conductor 3 with a layer of aramid fiber braid. Aramid fibers have the characteristics of high strength and high modulus. Its braided structure can effectively disperse stress and prevent the coil conductor 3 from tearing when it is stretched or scratched by sharp objects. The thickness of the tear-resistant layer 4 is controlled at 0.02mm to 0.05mm, which greatly enhances the tear resistance of the product without affecting the overall flexibility.

[0020] The protective layer 6 is a transparent silicone rubber layer with a thickness of 0.03 to 0.08 mm. The outermost layer is a transparent silicone rubber protective layer 6 with a thickness of 0.03 to 0.08 mm. Silicone rubber has good flexibility, weather resistance and waterproof performance, which can protect the internal structure from external environmental erosion, such as moisture, dust and chemicals, and further improve the reliability and stability of the product.

[0021] Working principle:

[0022] By using a polyimide film as the flexible substrate 1 and combining it with a graphene reinforcement layer, the flexible printed coil can easily be bent and twisted at various angles. The ultra-high molecular weight polyethylene wear-resistant coating can effectively resist external friction, and the aramid fiber woven tear-resistant layer 4 can disperse stress and prevent tearing, significantly improving the product's durability in complex operating environments, reducing failures caused by wear and tear, and extending the product's service life. The silicone rubber protective layer 6 can isolate moisture, dust, and chemicals, protecting the internal structure from external environmental corrosion, ensuring stable operation of the product in various harsh environments, and improving the product's reliability. The setting of the parylene insulation layer 2 effectively isolates the coil conductor 3 from the flexible substrate 1, greatly reducing the risk of leakage current, providing reliable electrical protection for the stable operation of the product, and further improving the product's safety and stability.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible printed coil, comprising a coil conductor (3), characterized in that: A flexible substrate (1) is provided at the lower part of the coil conductor (3), an insulating layer (2) is provided between the flexible substrate (1) and the coil conductor (3), an anti-tear layer (4) is provided at the upper part of the coil conductor (3), a wear-resistant layer (5) is provided at the upper part of the anti-tear layer (4), a protective layer (6) is provided at the upper part of the wear-resistant layer (5), and a contact piece (7) is provided at both ends of the coil conductor (3).

2. The flexible printed coil according to claim 1, characterized in that: The flexible substrate (1) is a polyimide film, and a graphene reinforcement layer with a thickness of 0.006 mm to 0.008 mm is provided on the surface of the polyimide film.

3. The flexible printed coil according to claim 1, characterized in that: The insulating layer (2) is made of parylene and has a thickness of 0.005 mm to 0.01 mm.

4. A flexible printed coil according to claim 1, characterized in that: The wear-resistant layer (5) is an ultra-high molecular weight polyethylene coating with a thickness of 0.02 mm to 0.05 mm.

5. A flexible printed coil according to claim 1, characterized in that: The tear-resistant layer (4) is an aramid fiber woven layer with a thickness of 0.02mm to 0.05mm.

6. A flexible printed coil according to claim 1, characterized in that: The protective layer (6) is a transparent silicone rubber layer with a thickness of 0.03 to 0.08 mm.

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