RU205475U1 - RFID Transponder with Sleeve - Google Patents

Abstract

The utility model relates to the field of radio frequency identification, in particular to radio frequency tags. The technical result, which consists in increasing the reliability and durability of the transponder structure in the area of the hole, is achieved due to the presence in the transponder for radio frequency identification of a radio frequency identification tag and sequentially arranged layers; the front outer layer and the back outer layer are made of polymeric material, and a sleeve is located in the hole. 8 p.p. f-ly, 4 dwg.

Description

The utility model relates to the field of radio frequency identification, in particular to radio frequency tags.

Hereinafter, the following terms and abbreviations will be used.

Radio frequency identification (abbreviated RFID, RFID - English Radio Frequency IDentification) is a method of wireless information transmission, in which data stored in so-called transponders or RFID tags is read or written by means of radio signals. As a rule, RFID tags are passive, that is, they do not contain batteries.

Chip - an integrated (micro) circuit - a microelectronic device with complexes of input resistances and / or matching circuits, made of a semiconductor wafer. The chip performs the function of processing signals when receiving and transmitting information through radio frequency exchange with the reader, contains protected memory, user memory, a unique identification number, may contain a processor for processing cryptography, a programmable area for executing firmware, etc.

Antenna is a conductor configuration geometrically and technically made in accordance with the type of chip used. The antenna can be closed (HF range) and open type (microwave range). The antenna has various shapes: circle, oval, square, rectangle and other free geometric shapes. The antenna shape is designed according to the specification of the chip used. The antenna is made of materials containing conductive substances such as aluminum, copper, silver, tin, gold, graphite and other materials. The antenna is applied to a substrate made of thin-film synthetic materials and paper by wire laying, etching, silk-screen printing (screen printing), thermal transfer, embossing, inkjet, offset, flexographic and digital printing with special inks.

RFID inlay is a part of an RFID product consisting of a substrate and containing at least one chip and one antenna. The arrangement of antennas and chips can be either synchronous with respect to the sides of the RFID tagged sheet material, or asynchronously, depending on the intended design and configuration of the future RFID product. Additional electronic components can be located on the inlay, for example, LEDs, buttons, capacitors, resistors, sensors, microcontrollers, etc.

RFID tag is a combination of a chip and an antenna.

RFID product - an end product containing an RFID tag, such as a card, tag, label, sticker, packaging, bracelet and other forms of a product, which can be obtained by die-cutting from a sheet of RFID material, inside of which there is an RFID inlay.

RFID reader (reader) - a device designed to exchange data with RFID products, for example, reading and writing information.

The closest analogue of the claimed utility model is a device known from patent RU 2629143, which is a plastic key fob with full color printing, equipped with a built-in RFID tag and having a round hole for fastening a ring.

However, in use, the eyelet formed by the circular hole is subject to stress and may break off over time.

The technical problem to be solved by the utility model is the prevention of deformations and destruction of the transponder in the area of the hole.

The technical result is to increase the reliability and durability of the transponder structure in the area of the hole.

The ring, inserted into the hole of the transponder during its operation, abrades the plastic layers, leading to deformation of the transponder ear. Irregularities on the surface of the ring provide an additional wear effect on the inner surface of the hole and its edges. Integration of an additional object inside the hole eliminates the effect of the ring on the layers of the transponder. Mounting the sleeve prior to the application of composite layers on the outer layers of the transponder increases the thickness of the composite material along the edge of the hole, increasing the structural strength in the lug area.

The claimed technical result is achieved due to the fact that in a transponder for radio frequency identification, made with a hole and containing a radio frequency identification tag, and sequentially located layers: front outer layer; a layer of plastic base in which the RFID tag is located; revolving outer layer; while the front outer layer and the back outer layer are made of polymeric material, a sleeve is located in the hole.

The utility model is illustrated using FIG. 1-4, which show:

in FIG. 1 - general view of the transponder;

in FIG. 2 - section of the transponder in the area of the hole;

in FIG. 3 - bushing in the form of a ring, top view;

in FIG. 4 - bush in the form of a ring, cross-section.

FIG. 1-4, positions 1-11 indicate:

1 - transponder;

2 - through hole;

3 - bushing;

4 - a layer of plastic base;

5 - front outer layer;

6 - reverse outer layer;

7 - radio frequency identification tag;

8 - outer diameter of the sleeve;

9 - inner diameter of the sleeve;

10 - sleeve height;

11 - sleeve thickness.

FIG. 1 shows a general view of the transponder 1 with the sleeve 3 in the hole 2.

The transponder 1 for radio frequency identification is a key fob made with a through hole 2 and containing a radio frequency identification tag (RFID tag) 7. The RFID tag 7 consists of an integrated circuit and an antenna (not shown in the figures).

FIG. 2 shows a section of transponder 1 in the area of hole 2, where the layers of transponder 1 are visible. Transponder 1 contains sequentially arranged layers: front outer layer 5, layer of plastic base 4, in which the RFID tag is located 7, reverse outer layer 6. Layer of plastic base 4 can be made of one or several layers of plastic, for example, according to the classical technology of manufacturing plastic smart cards. The front outer layer 5 and the back outer layer 6 are made of a polymeric material, for example, based on polyurethane. A bushing 3 is located in the through hole 2, which can be made of metal, plastic, polyurethane, wood, carbon fiber or other material.

Depending on the material used, the sleeve 3 can be made by stamping, casting, rolling, cutting, additive technologies, including 3D printing.

The plastic for the sleeve 3 can be polyvinyl chloride (PVC), polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile butadiene styrene (ABS), glass fiber reinforced plastic (GRP - Glassfiber Reinforced Plastic) or any other suitable type of plastics.

As the metal for the sleeve 3, aluminum, steel, copper and any other suitable metals can be used.

The bushing 3 can be equipped with a thread or locking fittings for the subsequent fastening of the fittings.

The shape of the hole 2, like the shape of the sleeve 3, can be any and depends on the functional purpose and design of the product: round, oval, quadrangular, triangular or other shape, as well as the hole 2 itself inside can have the shape of a cylinder, parallelepiped or truncated cone.

The sleeve 3 can be made with a height corresponding to the thickness of the layer of the plastic base 4, in the particular case with a height of 0.8 ± 0.05 mm.

The sleeve 3 can be made with a height exceeding the thickness of the finished transponder 1 for performing the flaring operation.

The outer surface of the sleeve 3 can be made in the form of a truncated cone, so that the outer diameter of the sleeve 3 in the region of the maximum diameter is greater than the maximum inner radius of the hole 2 by 1-3%. Such a design of the sleeve 3 with a bevel on the outer surface provides a tighter fixation of the sleeve 3 in the hole 2 due to the wedging effect, since when mounting the sleeve 3, the outer diameter of the sleeve 3 increases linearly in the area of contact of the sleeve 3 with the inner surface of the hole 2 in the layer of the plastic base 4. This design allows the use of robotic mounting of the sleeves 3.

In a particular case, the sleeve can be made in the form of a symmetrical ring (Figs. 3-4), the height of which corresponds to the thickness of the layer of the plastic base 4.

The device is manufactured as follows.

The device is manufactured on equipment designed for the production of plastic smart cards, using sheet materials of the same size, for example, 295 × 480 mm format. First, a central prelaminate is formed, for which, on a sheet with an installed RFID tag (s), they are laid on both sides, front and back sides, plastic sheets and thermocompression are connected between the sheets. Next, a multilayer structure is formed - a plastic base, for which, on both sides of the central prelaminate, it is laid on an information and decorative sheet and a protective laminating layer. Then, all sheets are connected by a thermocompression method, and a plurality of, for example, 24, 48, 72 and more transponder blanks with through holes 2 each are cut from the resulting multilayer structure. In this case, the transponders 1 remain on the sheet of the plastic base, holding the corner near the hole 2.

Then a sleeve 3 is placed in each hole 3. The height of the sleeve 3 can be greater than the thickness of the layer of the plastic base 4 or correspond to the thickness of the layer of the plastic base 4. Temporary fixation of the sleeve 3 in the hole 2 can be provided with glue, thread, or using a substrate with recesses, the depth of which corresponds to the height the protruding part of the sleeve above the layer of plastic base. Thus, the positioning of the sleeves 3 in the hole 2 is carried out.

Next, a liquid polymeric material based on polyurethane is applied to the layer of the plastic base 4 and left for 4-6 hours for polymerization. In the process of polymerization, the polymer material reliably adheres to the layer of the plastic base 4, which prevents it from peeling off during use and storage of the transponder 1, and fixes the sleeve 3 in the hole 2. After polymerization, the layer of the plastic base 4 with sleeves 3 and one layer of polymer material forming the front outer layer 5 is turned over, covered with a liquid polymeric material based on polyurethane on the other side to form a back outer layer 6 and wait for its polymerization. The finished transponders 1 obtained in this way are removed from the base and packaged.

Thanks to the sleeve 3, the layer of polymer material near the hole 2 is obtained the same thickness as in the central part of the transponder 1, increasing the resistance of the ear of the resulting key fob to deformation.

Another option for mounting the sleeve can be a method of mounting in hole 2 with already formed front 5 and back 6 layers. Sleeve 3 in this case can be fixed by flaring the edges of sleeve 3, using glue or thread, heating sleeve 3 and / or layers of transponder 1.

In this case, protection against deformation of the layers of the transponder 1 is provided by the sleeve 3 and the flared edges of the sleeve 3.

Examples of implementation.

Example 1.

In a particular case, the height of the sleeve is 3.25 ± 0.1 mm, the inner diameter of the sleeve is 4 ± 0.1 mm, the outer diameter of the sleeve is 4.5 ± 0.1 mm, and the thickness of the transponder is 3.25 ± 0.1 mm. , the diameter of the round hole of the transponder is 4.5 ± 0.1 mm.

Example 2.

In a particular case, the outer surface of the sleeve is made in the form of a truncated cone, the height of the sleeve is 3.25 ± 0.1 mm, the minimum outer diameter of the sleeve is 4 ± 0.1 mm, the maximum outer diameter of the sleeve is 4.6 ± 0.1 mm, the thickness of the transponder is 3.25 ± 0.1 mm, the diameter of the round hole of the transponder is 4.5 ± 0.1 mm.

Example 3.

In the particular case of making a sleeve for a flaring operation, the height of the sleeve is 4 ± 0.1 mm, the inner diameter of the sleeve is 4 ± 0.1 mm, the outer diameter of the sleeve is 4.5 ± 0.1 mm, and the thickness of the transponder is 3.25 ± 0. , 1 mm, inner diameter of a round hole - 4.5 ± 0.1 mm.

Example 4.

The sleeve is made with a height of 0.8 ± 0.05 mm and corresponds to the thickness of the plastic base layer, the inner diameter of the sleeve is 4 ± 0.1 mm, the outer diameter of the sleeve is 4.5 ± 0.1 mm, the thickness of the transponder is 3.25 ± 0 , 1 mm, diameter of the round hole of the transponder - 4.5 ± 0.1 mm.

Example 5.

In the particular case of making the sleeve in the form of a symmetric ring, the outer diameter of the sleeve 8 is 4.45 ± 0.1 mm, the inner diameter of the sleeve 9 is 2.85 ± 0.1 mm, the height of the sleeve 10 is 0.85 ± 0.1 mm, sleeve 11 thickness - 0.8 ± 0.1 mm.

Claims (9)

1. A transponder for radio frequency identification, made with a hole and containing a radio frequency identification tag and sequentially located layers: a front outer layer, a layer of plastic base, which contains the radio frequency identification tag, a reverse outer layer; in this case, the front outer layer and the back outer layer are made of a polymer material, characterized in that a sleeve is located in the hole. 2. A transponder according to claim 1, characterized in that the sleeve is made of metal. 3. A transponder according to claim 1, wherein the sleeve is made of plastic. 4. Transponder according to claim 1, characterized in that the sleeve is made in the form of a hollow cylinder. 5. Transponder according to claim 1, characterized in that the sleeve is made with a height exceeding the thickness of the transponder. 6. Transponder according to claim 1, characterized in that the sleeve is made with a height corresponding to the thickness of the transponder. 7. Transponder according to claim 1, characterized in that the sleeve is made with a height corresponding to the thickness of the layer of the plastic base. 8. Transponder according to claim 1, characterized in that the outer surface of the sleeve is made in the form of a truncated cone. 9. A transponder according to claim 8, characterized in that the outer diameter of the sleeve in the region of the maximum diameter is larger than the maximum inner radius of the hole by 1-3%.

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