Anti-metal electronic tag

Abstract

The utility model relates to the technical field of electronic tags, and discloses an anti-metal electronic tag, which comprises a tag body, a substrate is arranged in the tag body, the top of the substrate is fixedly connected with a metal reflecting layer, the top of the metal reflecting layer is fixedly connected with a dielectric layer, the top of the dielectric layer is fixedly connected with an antenna, and the antenna is fixedly connected with the antenna. The top of the antenna is fixedly connected with a protective layer, the bottom of the substrate is fixedly connected with a bonding layer, the interior of the antenna is electrically connected with a chip, the outer wall of the antenna is provided with an insulating coating, and the outer wall of the tag body is provided with anti-skid grains. According to the utility model, the combined design of the metal reflecting layer and the dielectric layer effectively isolates the interference of metal to electromagnetic waves and improves the stability of signal transmission; the antenna adopts an optimized layout, and the reading distance is enhanced; the durability is improved through the protective layer and the anti-skid lines; the metal label is simple in overall structure, low in cost and suitable for metal environments such as industry and logistics.

Description

Technical Field

[0001] This utility model relates to the field of electronic tag technology, and in particular to an anti-metal electronic tag. Background Technology

[0002] Against the backdrop of information management and the development of the Internet of Things (IoT), electronic tags (RFID tags) are widely used in various fields such as industrial manufacturing, warehousing and logistics, and asset management. Electronic tags achieve item identification and information transmission through wireless communication with readers. In metallic environments, electronic tags can be directly attached to metal surfaces to identify metal components, track equipment operating status, and achieve refined material management. However, traditional electronic tags have certain performance limitations in metallic environments; therefore, developing anti-metal electronic tags suitable for metallic environments has become a key technical problem that urgently needs to be solved.

[0003] In existing technologies, to improve the usability of electronic tags on metal surfaces, methods such as adding isolation layers, adjusting antenna shapes, and using materials with high dielectric constants are commonly employed to improve the propagation path of electromagnetic waves in metallic environments. For example, some tags incorporate a foam layer or ceramic substrate between the antenna and the metal surface to achieve physical isolation; other designs adjust the antenna's resonant structure to reduce signal interference from metal reflections. Furthermore, to enhance tag durability, encapsulation structures or adhesive additives are often used to improve the tag's adhesion to metal surfaces and extend its lifespan.

[0004] However, existing technologies still have the following problems: When electronic tags are directly attached to metal surfaces, the strong reflection and absorption of electromagnetic waves by the metal material can significantly shorten the tag signal reading and writing distance, affecting identification stability. Simultaneously, the lack of effective shielding and structural design between the tag antenna and the metal surface easily causes signal interference, limiting its application in high-density metal environments. Furthermore, during long-term service, due to weak adhesion or insufficient protective layer performance, tags are prone to detachment and damage, affecting the reliability of system operation and the continuity of management. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-metal electronic tag, which aims to improve the situation where the strong reflection and absorption of electromagnetic waves by metal materials can easily lead to a significant reduction in the tag signal reading and writing distance, thus affecting the identification stability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-metal electronic tag, comprising a tag body, a substrate disposed inside the tag body, a metal reflective layer fixedly connected to the top of the substrate, a dielectric layer fixedly connected to the top of the metal reflective layer, an antenna fixedly connected to the top of the dielectric layer, a protective layer fixedly connected to the top of the antenna, and an adhesive layer fixedly connected to the bottom of the substrate.

[0007] As a further description of the above technical solution:

[0008] The antenna has a chip electrically connected inside, and the outer wall of the antenna is provided with an insulating coating.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the label body is provided with anti-slip texture, which is used to prevent the label body from slipping during installation.

[0011] As a further description of the above technical solution:

[0012] The tag body has a grounding terminal inside, which is used to discharge residual current.

[0013] As a further description of the above technical solution:

[0014] The tag body is composed of a substrate, a metal reflective layer, a dielectric layer, an antenna, a protective layer, and an adhesive layer.

[0015] As a further description of the above technical solution:

[0016] The adhesive layer is used to fix the position of the label body.

[0017] This utility model has the following beneficial effects:

[0018] In this invention, the combination design of a metal reflective layer and a dielectric layer effectively isolates the interference of metal on electromagnetic waves and improves the stability of signal transmission; the antenna adopts an optimized layout to enhance the reading distance; the protective layer and anti-slip texture improve durability; the adhesive layer ensures that the label is firmly attached to the metal surface. The overall structure is simple and low in cost, and it is suitable for metal environments such as industrial and logistics facilities. Attached Figure Description

[0019] Figure 1 This is a perspective view of an anti-metal electronic tag proposed in this utility model;

[0020] Figure 2 This is an exploded view of the tag body of an anti-metal electronic tag proposed in this utility model;

[0021] Figure 3This is a schematic diagram of the antenna structure of an anti-metal electronic tag proposed in this utility model.

[0022] Legend:

[0023] 1. Substrate; 2. Metal reflective layer; 3. Dielectric layer; 4. Antenna; 5. Chip; 6. Protective layer; 7. Adhesive layer; 8. Anti-slip texture; 9. Grounding terminal; 10. Insulating coating; 11. Tag body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-3This utility model provides an embodiment of an anti-metal electronic tag, comprising a tag body 11, with a substrate 1 disposed inside the tag body 11. The substrate 1 serves as the structural support base for the tag, supporting various functional layers and maintaining overall structural stability. A metal reflective layer 2 is fixedly connected to the top of the substrate 1, reflecting electromagnetic interference from the metal surface, reducing the influence of the metal on signal transmission, and improving the tag's electromagnetic compatibility performance. A dielectric layer 3 is fixedly connected to the top of the metal reflective layer 2, providing electromagnetic isolation between the antenna 4 and the metal, and optimizing the electromagnetic wave propagation path. An antenna 4 is fixedly connected to the top of the dielectric layer 3, receiving and transmitting radio frequency signals to enable communication between the tag and the reader. A protective layer 6 is fixedly connected to the top of the antenna 4, preventing the antenna 4 from getting damp, worn, and affected by the external environment, enhancing its durability. An adhesive layer 7 is fixedly connected to the bottom of the substrate 1, fixing the tag to the metal surface. To ensure the label remains stable and does not easily fall off during use, the antenna 4 is internally electrically connected to a chip 5. The chip 5 stores the label identification information and works with the antenna 4 to complete data interaction. The outer wall of the antenna 4 is provided with an insulating coating 10 to prevent the antenna 4 from directly contacting external metal and causing a short circuit, ensuring stable signal transmission. The outer wall of the label body 11 is provided with anti-slip textures 8 to prevent the label body 11 from slipping during installation, improving installation efficiency and application accuracy. The label body 11 is provided with a grounding terminal 9 inside to discharge residual current inside the label or on the metal surface, preventing static electricity accumulation from interfering with the chip 5 or the antenna 4. The label body 11 is composed of a substrate 1, a metal reflective layer 2, a dielectric layer 3, an antenna 4, a protective layer 6, and an adhesive layer 7. The multi-layer structure works together to shield against metal interference and optimize signal transmission. The adhesive layer 7 is used to fix the position of the label body 11, ensuring the stability of the label application process and extending its service life.

[0026] Working principle: When using this anti-metal electronic tag, when the reader transmits a radio frequency signal, antenna 4 receives the electromagnetic wave and activates chip 5 to feed back data. Metal reflective layer 2 blocks electromagnetic interference from the metal surface, while grounding terminal 9 conducts residual current; dielectric layer 3 adjusts the dielectric constant to reduce signal attenuation; insulating coating 10 prevents antenna oxidation. Adhesive layer 7 fixes the tag position, and anti-slip texture 8 prevents slippage during installation. Ultimately, stable communication is achieved in metal environments, with a reading distance of 5-10 meters.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-metal electronic tag, comprising a tag body (11), characterized in that: The label body (11) has a substrate (1) inside. A metal reflective layer (2) is fixedly connected to the top of the substrate (1). A dielectric layer (3) is fixedly connected to the top of the metal reflective layer (2). An antenna (4) is fixedly connected to the top of the dielectric layer (3). A protective layer (6) is fixedly connected to the top of the antenna (4). An adhesive layer (7) is fixedly connected to the bottom of the substrate (1).

2. The anti-metal electronic tag according to claim 1, characterized in that: The antenna (4) is electrically connected to a chip (5), and the outer wall of the antenna (4) is provided with an insulating coating (10).

3. The anti-metal electronic tag according to claim 1, characterized in that: The label body (11) has anti-slip texture (8) on its outer wall, which is used to prevent the label body (11) from slipping during installation.

4. The anti-metal electronic tag according to claim 1, characterized in that: The tag body (11) is provided with a grounding terminal (9) inside, which is used to discharge residual current.

5. The anti-metal electronic tag according to claim 1, characterized in that: The tag body (11) is composed of a substrate (1), a metal reflective layer (2), a dielectric layer (3), an antenna (4), a protective layer (6), and an adhesive layer (7).

6. The anti-metal electronic tag according to claim 1, characterized in that: The adhesive layer (7) is used to fix the position of the label body (11).

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