Flexible vulcanized radio frequency tag

Abstract

The utility model belongs to the technical field of radio frequency tags, and particularly relates to a flexible vulcanized radio frequency tag. The utility model comprises: a base material layer; the antenna layer is arranged above the base material layer, and a chip is bound on the antenna layer; the first plane material layer is arranged above the antenna layer; the second plane material layer is arranged below the base material layer; the substrate layer is provided with a plurality of holes, and the positions of the plurality of holes are correspondingly arranged in the gap of the antenna layer. The first plane material layer and the second plane material layer are made of rubber materials. The tire radio frequency identification tag is used for solving the technical problem that after a tire radio frequency identification tag in the prior art is embedded in the tire, the tire is vulcanized and used, and the tire radio frequency identification tag is invalid.

Description

Technical Field

[0001] The utility model belongs to the technical field of radio frequency tags, and in particular relates to a flexible vulcanized radio frequency tag. Background Art

[0002] Tire management and tracking have always been a critical task in the automotive industry. Tire radio frequency identification (RFID) tags are a powerful tool for intelligent tire management and improved management efficiency. Tire RFID tags utilize radio frequency technology and are embedded in tires to facilitate tire tracking and management. The tags contain a built-in chip and antenna, which interact with a reader / writer via radio frequency signals to read and write information from the tag. Tire RFID tags are primarily categorized as externally attached or internally attached, depending on application requirements and technical characteristics. Internally attached tire RFID tags can become ineffective after tire vulcanization and during tire movement due to interference from external factors such as physical deformation and tension. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the existing technology and provide a flexible vulcanized RFID tag to solve the technical problem in the existing technology that after the tire RFID tag is embedded in the tire, the tire will become ineffective after vulcanization and use.

[0004] The utility model solves the above technical problems with the following technical solutions: A flexible vulcanized radio frequency tag, comprising:

[0005] substrate layer;

[0006] an antenna layer, the antenna layer being disposed above the substrate layer and having a chip bonded thereto;

[0007] a first surface material layer, the first surface material layer being arranged above the antenna layer;

[0008] a second surface material layer, the second surface material layer being arranged below the base material layer;

[0009] The substrate layer is provided with a plurality of holes, and the positions of the plurality of holes correspond to the gaps in the antenna layer;

[0010] The first surface material layer and the second surface material layer are made of rubber-based materials.

[0011] The utility model opens a plurality of holes on the base material layer. During the vulcanization process, the temperature of the first surface material layer and the second surface material layer will exceed the softening point, and the upper and lower rubber materials can be effectively connected through the holes. This not only reduces the area of the base material layer, but also makes it difficult for the antenna layer to be damaged when the tag is physically stretched and deformed for a long time.

[0012] Furthermore: the material of the substrate layer is PET, and the material of the antenna layer is aluminum foil.

[0013] The beneficial effects of this step are as follows: the antenna layer is aluminum foil, which is convenient for die-cutting; the formed antenna is laid on the substrate layer, and PET can protect the aluminum foil.

[0014] Furthermore: the thickness of the first surface material layer and the second surface material layer is 10-50 μm, the thickness of the antenna layer is 10-20 μm, and the thickness of the chip is 100-140 μm;

[0015] The chip has an outline size of less than 680*680 μm.

[0016] The beneficial effects of adopting this step are: the first surface material layer and the second surface material layer should not be too thick. Excessively thick rubber materials can easily cause glue overflow during label die-cutting and adhesion problems during the winding and unwinding of roll labels; the contour design size of the chip can reduce the force-bearing area of the chip, avoiding damage to the chip caused by stretching and deformation.

[0017] Furthermore: the surface of the chip is covered with UV glue.

[0018] The beneficial effect of this step is that the UV glue not only protects the chip, but also strengthens the adhesion between the chip and the first surface material layer.

[0019] Furthermore, a recess is provided at a position on the bottom surface of the first surface material layer corresponding to the chip, and UV glue is filled between the chip and the recess.

[0020] The beneficial effect of this step is that the pit can accommodate the chip and UV glue, ensuring the flatness of the first surface material layer.

[0021] Furthermore, the first surface material layer and the second surface material layer have the same profile, and the areas of the first surface material layer and the second surface material layer are larger than the areas of the base material layer and the antenna layer;

[0022] A plurality of through holes are formed in the first surface material layer and the second surface material layer in areas beyond the base material layer and the antenna layer.

[0023] The beneficial effect of adopting this step is that the through holes in the first surface material layer and the second surface material layer can enhance the connection strength with the tire.

[0024] The beneficial effects of the utility model are:

[0025] 1. In this application, the label is composed of a rubber material, a radio frequency chip, and a radio frequency antenna. The first and second surface material layers of the label are made of rubber material. The PET substrate of the radio frequency antenna is provided with holes. After high-temperature vulcanization, the upper and lower rubber layers of the label are tightly connected through the holes, so that the rubber material of the label is integrated and the performance of the label is reduced due to deformation or stretching.

[0026] This tag is an embedded tag for tires, enabling tire tracking and management. The tag has a built-in chip and antenna, and interacts with the reader / writer through radio frequency signals to read and write the information in the tag.

[0027] 2. The through holes in the first and second surface material layers of the present application are designed as a through-type structure, so that the rubber liquid can flow through the through-type design after vulcanization, and the rubber and the RFID tag are more tightly combined. During the flow of the rubber, the bubbles between the rubber and the tag can also be effectively discharged, reducing internal bubbles, making the rubber tighter after the vulcanization process, and enhancing the tightness and safety of the tag when it is deformed inside the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of a flexible vulcanized radio frequency tag provided by the utility model;

[0030] Figure 2 This is a structural diagram of an antenna layer and a substrate layer in a flexible vulcanized radio frequency tag according to the present invention;

[0031] Figure 3 This is a structural diagram of a second embodiment of an antenna layer and a substrate layer in a flexible vulcanized radio frequency tag provided by the present invention;

[0032] Figure 4 This is a schematic structural diagram of the antenna layer, substrate layer and second surface material layer in a flexible vulcanized radio frequency tag provided by the utility model.

[0033] Reference numerals:

[0034] 1-base material layer; 2-antenna layer; 3-chip; 4-first surface material layer; 5-second surface material layer; 6-UV adhesive;

[0035] 11-hole; 51-through hole. DETAILED DESCRIPTION

[0036] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0037] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0040] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] Example

[0043] like Figures 1 to 4 As shown, the present invention provides a flexible vulcanized radio frequency tag, comprising:

[0044] Base material layer 1;

[0045] An antenna layer 2 is provided above the substrate layer 1 and a chip 3 is bonded to the antenna layer 2;

[0046] a first surface material layer 4, wherein the first surface material layer 4 is provided above the antenna layer 2;

[0047] The second surface material layer 5 is provided below the substrate layer 1. In order to facilitate label packaging, winding and peeling of the material, a release layer is provided on the bottom surface of the second surface material layer 5 during actual use.

[0048] The substrate layer 1 is provided with a plurality of holes 11. The positions of the plurality of holes 11 correspond to the gaps in the antenna layer 2. The holes 11 preferably correspond to the periphery of the antenna layer 2 and the gaps in the inductor coil. When the bending gap of the dipole antenna arm of the antenna layer is large enough, the holes 11 may also correspond to the aforementioned areas.

[0049] The first and second surface material layers 4 and 5 are made of a rubber-based material. Rubber-based materials have the following characteristics: low elasticity, resistance to flexing, high elasticity and plasticity at room temperature, and crystallization and hardening at low temperatures. They are alkali-resistant but not acid-resistant. They are insoluble in water, low ketones, and alcohols, but swell in non-polar solvents such as chloroform and carbon tetrachloride. They have an operating temperature range of -50°C to 100°C, soften at 130°C to 140°C, and solidify at 150°C to 160°C. Furthermore, to ensure bonding between the first and second surface material layers 4 and 5, the adjacent surfaces of the two are coated with a rubber-based glue.

[0050] The present invention has a plurality of holes 11 formed on the substrate layer 1. During the vulcanization process, the temperature of the first surface material layer 4 and the second surface material layer 5 will exceed the softening point, and the upper and lower rubber materials can be effectively connected through the holes 11. This not only reduces the area of the substrate layer 1 material, but also makes it less likely that the antenna layer will be damaged when the tag is physically stretched and deformed for a long time.

[0051] On the basis of the above technical solution, the material of the substrate layer 1 is PET, and the material of the antenna layer 2 is aluminum foil.

[0052] The antenna layer 2 is aluminum foil, which is convenient for die-cutting. The formed antenna is laid on the substrate layer 1, and PET can protect the aluminum foil.

[0053] On the basis of the above technical solution, the thickness of the first surface material layer 4 and the second surface material layer 5 is 10-50 μm, the thickness of the antenna layer 2 is 10-20 μm, and the thickness of the chip 3 is 100-140 μm;

[0054] The chip 3 has an outline size smaller than 680*680 μm.

[0055] The first surface material layer 4 and the second surface material layer 5 should not be too thick. Excessively thick rubber materials can easily cause glue overflow during label die-cutting and adhesion problems during the winding and unwinding of roll labels. The contour design size of the chip 3 can reduce the force-bearing area of the chip 3 and avoid damage to the chip 3 caused by stretching and deformation.

[0056] On the basis of the above technical solution, the surface of the chip 3 is covered with UV glue 6 .

[0057] The UV adhesive 6 not only protects the chip 3 , but also strengthens the adhesion between the chip 3 and the first surface material layer 4 .

[0058] On the basis of the above technical solution, a recess is provided at the bottom surface of the first surface material layer 4 corresponding to the chip 3 , and UV glue 6 is filled between the chip 3 and the recess.

[0059] The recess can accommodate the chip 3 and the UV adhesive 6 to ensure that the first surface material layer 4 is flat.

[0060] On the basis of the above technical solution, the first surface material layer 4 and the second surface material layer 5 have the same profile, and the area of the first surface material layer 4 and the second surface material layer 5 is larger than the area of the base material layer 1 and the antenna layer 2;

[0061] A plurality of through holes 51 are formed in the first surface material layer 4 and the second surface material layer 5 in areas beyond the base material layer 1 and the antenna layer 2 .

[0062] When the tire is vulcanized, the rubber material of the tire can pass through the through holes 51 of the first surface material layer 4 and the second surface material layer 5, which can enhance the connection strength between the label and the tire.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible vulcanized radio frequency tag, characterized in that: include: substrate layer; an antenna layer, the antenna layer being disposed above the substrate layer and having a chip bonded thereto; a first surface material layer, the first surface material layer being arranged above the antenna layer; a second surface material layer, the second surface material layer being arranged below the base material layer; The substrate layer is provided with a plurality of holes, and the positions of the plurality of holes correspond to the gaps in the antenna layer; The first surface material layer and the second surface material layer are made of rubber-based materials.

2. The flexible vulcanized radio frequency tag according to claim 1, characterized in that: The material of the substrate layer is PET, and the material of the antenna layer is aluminum foil.

3. The flexible vulcanized radio frequency tag according to claim 1, characterized in that: The thickness of the first surface material layer and the second surface material layer is 10-50 μm, the thickness of the antenna layer is 10-20 μm, and the thickness of the chip is 100-140 μm; The chip has an outline size of less than 680*680 μm.

4. The flexible vulcanized radio frequency tag according to claim 1, characterized in that: The surface of the chip is covered with UV glue.

5. The flexible vulcanized radio frequency tag according to claim 4, characterized in that: A recess is provided at a position on the bottom surface of the first surface material layer corresponding to the chip, and UV glue is filled between the chip and the recess.

6. The flexible vulcanized radio frequency tag according to claim 1, characterized in that: The first surface material layer and the second surface material layer have the same profile, and the areas of the first surface material layer and the second surface material layer are larger than the areas of the base material layer and the antenna layer; A plurality of through holes are formed in the first surface material layer and the second surface material layer in areas beyond the base material layer and the antenna layer.

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