KR20050105675A - Eyelet for a radio frequency identification - Google Patents

Abstract

Disclosed is an RFID eyelet capable of performing a contactless identification function. The RFID eyelet has an eyelet washer with a washer hole formed therebetween, and an RFID module interposed between the eyelet washer and the eyelet base, with the eyelet base and the object fixed to the eyelet washer through the washer hole and being fixed to the eyelet washer. It includes. The RFID module is interposed between the eyelets, so that the RFID module can be easily fixed and protected. By providing the RFID function to the conventional eyelet function, the application range of the RFID tag can be expanded in various ways, and the conventional eyelet fastening device can be used as it is. This makes it possible to produce RFID tags at low cost without additional costs.

Description

EYELET FOR A RADIO FREQUENCY IDENTIFICATION}

The present invention relates to a tag using RFID (Radio Frequency IDentification) technology, and more particularly, to a tag for RFID that can be applied regardless of the type and shape of the object requiring identification, and can be used for various purposes.

The RFID tag generally refers to a device that consists of an antenna and an IC chip to transmit and receive predetermined data with an external reading device, and is also called a transponder. The RFID tag can transmit and receive necessary data with an external reader-writer device according to a non-contact method using high frequency. For example, the RFID tag is used for the management of goods due to the nature of the contactless method, and is used in various ways such as an IC card or a pass for payment. These RFID tags can transmit / receive necessary data by the non-contact method with the reader-writer device and operate without a separate battery because some methods can generate induced current by using high frequency generated from the reader-writer device. It has the advantage of being able to.

As summarized in [Table 1] above, the identification method using RFID technology includes a tag itself, a method of integrating into a card manufactured by laminating, a method using an adhesive medium such as a sticker, and a tag through molding. And a method of integrally forming the same. However, the method of using a tag in a parcel or clothes has the advantage that it is easy to fasten and can be reused. However, there is a risk of loss or loss and the tag can be easily damaged by an external impact. In addition, the tag formed through the molding has the advantage that it can be used in a harsh environment by protecting the RFID module inside, but once the tag produced by molding has the disadvantage that it is difficult to recycle and molding through molding.

As already mentioned, the RFID tag is composed of an antenna unit and an IC chip. Basically, a sheet made of various plastic materials such as PVC, PCB, PE, and PA is used, and the sheet is formed to a thickness within about 100 μm to provide a substrate on which an antenna unit is formed. The conductor of the antenna unit may be mounted on the sheet together with the chip or connected to the chip outside the sheet by a direct bonding method or an embedding method.

In general, the size of the RFID tag is determined by the size of the chip, the size of the antenna, the technical skill of the process, the use of a battery according to an active / passive method, etc. As the level of technology for chip size and technical proficiency increases significantly, the size of the RFID tag is mainly determined depending on the size of the antenna. Therefore, the size of the antenna is determined according to the sensing range required by the reader / writer, and the size of the tag may be increased or decreased according to the determined size of the antenna. In addition, the size of the antenna may be determined according to the height of the frequency used. In recent years, since the frequency of the conventional RFID used is about 13.56 MHz or less, there are limitations on the length of the antenna and the material of the outer housing. However, in the future, efforts will be made to use the communication frequency for RFID at about 900 MHz or more, and in this case, it is expected that the size of the RFID tag can be greatly reduced. It is expected that implementation will be possible.

However, the fastening or mounting of the conventional RFID tag has a problem that there is a risk of loss or detachment of the RFID tag correspondingly, and it can be reused by separating the RFID module from the tag, but it may be exposed to the surrounding environment. There is also a problem that you can receive a lot. In addition, there is disclosed an RFID tag that blocks the RFID module by molding molding to protect the RFID module from the harsh environment around, but the molding process is complicated because injection molding is used, and the manufacturing cost for manufacturing the RFID tag This is disadvantageous because it is uneconomical and the use process itself is wasteful because it is almost impossible to separate and reuse the RFID module from the tag produced through injection molding.

Accordingly, an object of the present invention is to provide an RFID tag that can be easily fastened or mounted, and to provide an RFID tag that can be easily detached or dismantled so that the RFID module can be reused for other purposes. .

In addition, another object of the present invention is to provide an RFID tag that can effectively protect an RFID module from an external harsh environment and minimize the space and proportion occupied by the tag itself.

In addition, another object of the present invention can be used for various purposes other than the RFID tag, it is possible to use a conventional fastening device as it is to provide an RFID tag that can minimize the installation burden to be added separately.

In addition, another object of the present invention is to provide a tag for RFID that can protect the RFID module from external shocks while fixing and protecting the RFID module without disturbing smooth communication between the RFID module and the reader-writer device. .

In addition, another object of the present invention is to provide a tag for RFID having a structure capable of expressing a variety of shapes, shapes and colors, and can be usefully used for purposes other than tags.

According to a preferred embodiment of the present invention for achieving the above objects of the present invention, an RFID eyelet includes an RFID washer and an eyelet base.

Generally, the eyelet is composed of eyelet washers and eyelet bases fixed on both sides with the object sandwiched therebetween, and the eyelet washer includes a washer hole formed therein as a female, and the eyelet base is a male as a rim and barrel. An object, including a portion, is disposed opposite the eyelet washer with the object interposed therebetween and secured to the eyelet washer. The barrel portion is formed in a cylindrical, separated cylindrical or leg (leg), etc., and is fixed to the eyelet washer through the object and the washer hole. Eyelet or Grommet herein is used for the purpose of forming a relatively reinforced hole by partially applying a strong material to the hole formed in a weak material such as paper or fabric, in addition to the eyelet as a simple fastener (Fastener) It will also include eyelets used for the purpose of adding decorative elements to clothing or other textiles.

The conventional eyelets are composed of ordinary eyelet washers and eyelet bases, but in the eyelet according to the present invention, an RFID washer, that is, an RFID module is used as the eyelet washer and is fastened to the eyelet base. Basically, since the structure of the RFID tag can be applied to the structure of a conventional eyelet, it is possible to obtain both the advantages of the eyelet and the advantages of the RFID tag, and it is simple to install and detach because the eyelet washer and the RFID module are integrated. The range of applications in real life is very wide.

However, in general, the eyelet is composed of a metal material having good malleability and ductility such as aluminum and copper, and the metal corresponds to a conductive material in view of metal. The conductive material may interfere with the smooth communication between the RFID tag and the reader-writer device regardless of the length of the antenna and the frequency elevation used. Because, when RFID tag is attached to metal surface or surrounded by metal like eyelet, eddy current is generated in metal by alternating magnetic field generated by electromagnetic waves, and this eddy current is repulsed by magnetic flux for transmitting and receiving This is because a magnetic flux is generated to attenuate the communication flux by attenuating the magnetic flux for transmission and reception. In particular, a frequency of about 13.56 MHz or less, which is conventionally used, corresponds to a relatively low frequency region, and the RFID tag in such a low frequency region is often subjected to communication failure by surrounding conductive materials.

Since the RFID washer is disposed opposite to the eyelet base with the object interposed therebetween, even if the eyelet base is made of a conductive material, the RFID washer can be less affected by electromagnetic waves. As a result, the RFID eyelet according to the present invention is about 13.56 MHz or less. Even in the low frequency region, it can be usefully used without disturbing electromagnetic waves. Of course, the eyelet base may be made of a nonconductive material such as plastic, or may be effectively intercepted by electromagnetic waves through a magnetic material such as ferrite between the RFID washer and the eyelet base.

The RFID washer includes an eyelet substrate including a washer hole, an antenna unit, and an RFID circuit unit. Conventional eyelets have a small size of several tens to several tens of millimeters, but it is possible to implement an RFID circuit in the form of a chip, and as RFID related technologies such as antenna manufacturing technology develop, the size of an RFID module is the size of the eyelet. Can be made to fit. In addition, by manufacturing the size of the RFID washer in a conventional tag size, the functions of the washer, the information sheet, and the RFID module may be combined into one.

RFID eyelets according to the present invention can effectively fix the RFID module on the object by using a conventional eyelet structure, can maintain and improve the conventional eyelet function that is used daily, and the conventional eyelet fastening device as it is It is also economical because it can be used for practical applications without significant cost increase. In addition, the manufacturing and fastening process of the RFID eyelets is simple, and since the production facilities systems of the eyelets are already widely distributed, the tag price of the RFID can be significantly lowered. In addition, eyelets are widely used in so many fields in real life, and their applications and ramifications can grow tremendously.

For example, a rubber band or a wire is bound to a tag used to identify an air or train cargo, and eyelets are used in most of the holes where the rubber band or the wire is bound. In this case, if the conventional ordinary eyelets are used by replacing them with RFID eyelets, the information can be automatically detected without checking the information about the cargo, and the loss or wrong delivery of the cargo can be prevented in advance. In addition, the RFID eyelet is very economical because it can withstand external shocks or other harsh environments and can protect the internal RFID module, and can be reused when used as a tag using a rubber band.

In addition, even in areas where eyelets are used, such as clothing and shoes, shading tents, and construction materials tents, and even those where eyelets are not currently used, conventional eyelet fastening devices can be used to easily fix RFID eyelets to various objects. Through RFID eyelets, contactless identification technology using RFID can be applied to various fields.

In the future, attempts are being made to use the communication frequency for RFID above about 900 MHz, and by using the high frequency, there is no need to expose the antenna part from the rim or the eyelet washer, and the size of the RFID tag can be greatly reduced. In addition, various types of RFID tags may be implemented without limiting the shape or size of the RFID eyelet. In addition, in the case of using a high frequency of more than 900MHz band, even a polarized antenna such as a dipole can perform the RFID function. The dipole antenna can be simply composed of a straight line of a constant length, in addition, it can be formed in various shapes such as U-shaped. In this case, the dipole antenna uses a backscattering scheme.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments.

Example 1

1 is an exploded perspective view of an RFID eyelet according to a first embodiment of the present invention, FIG. 2 is a partial cross-sectional view showing a fastened state of the RFID eyelet according to the first embodiment, and FIG. 3 is a first embodiment. In order to explain the structure of the RFID washer according to FIG.

1 and 2, the RFID eyelet 100 according to the first embodiment includes an RFID washer 110 and an eyelet base 120, and the object OBJ includes an RFID washer 110 and an eyelet base. Interposed between the 120, the RFID washer 110 and the eyelet base 120 are tightly fixed by fastening both parts.

The RFID washer 110 is electrically connected to the eyelet substrate 112 including the washer hole 114, the antenna unit 116 and the antenna unit 116 formed on the eyelet substrate 112 along the periphery of the washer hole 114. It includes an RFID chip 118 connected to.

In this embodiment, the eyelet substrate 112 includes a washer hole 114 formed at the center thereof and is formed in a ring shape. In addition, the eyelet substrate 112 is made of a non-conductive material such as PVC, PCB, PE, PA, etc., and forms a laminated structure to improve bending strength and the like. As shown in FIG. 3, one eyelet substrate 112 is formed by stacking three plastic sheets up and down, and if the plastic sheets are directional, they are stacked while crossing each material direction at an angle of about 90 degrees up and down. do. When the plurality of thin plates are laminated so as to cross each other, the weakness of the strength of one thin plate can be compensated for each other, and the strength of the eyelet substrate 112 constituting the laminated structure can be greatly improved. This strength improvement is one of the important characteristics required because the RFID module is used as the eyelet washer. In addition, an inner margin 113 is formed around the washer hole 114 in the RFID washer 110, and the eyelet base 120 and the RFID washer 110 are fixed to each other through the inner margin 113. In this embodiment, the eyelet substrate 112 is composed of three thin plates, but according to various embodiments of the present invention, the eyelet substrate may be composed of a plurality of plastic thin plates.

An antenna unit 116 is formed around the washer hole 114 on the eyelet substrate 112. In this embodiment, the antenna unit 116 is formed in a ring shape as a whole, specifically, a conductive material such as aluminum, iron, or copper is spirally connected to form a ring shape as a whole. In the present specification, the spiral is basically formed in a circular shape and includes a typical spiral that is continuously connected with a slight increase in radius. In addition, the spiral is formed in a polygon such as a square or a hexagon and is continuously connected while being slightly away from the center. It is used as a concept that also includes shapes. In addition, the spiral in the antenna unit may also include the shape of various structures for smoothly moving electrons.

In this embodiment, the antenna unit 116 is formed spirally around the washer hole 114. In order to form the antenna unit 116, a thin copper or aluminum thin film is formed on the eyelet substrate 112, and the thin film is etched according to a predetermined antenna pattern to form an antenna unit 116 corresponding to the antenna pattern. do. In addition, it may be formed by implanting a copper or aluminum conductor directly on the eyelet substrate 112 by an embedding (embedding) method.

After mounting the RFID chip 118 on the eyelet substrate 122, the RFID washer 110 is completed by electrically connecting the RFID chip 118 with the copper / aluminum pattern forming the antenna unit 116.

An eyelet base 120 is provided opposite the RFID washer 110. The eyelet base 120 according to the present exemplary embodiment is made of a conductive material and includes a rim 125 having a circular outline and a barrel portion 130 formed integrally with the rim 125. The barrel 130 is formed in a cylindrical shape and passes through the hole of the object OBJ and the washer hole 114 of the RFID washer 110. The barrel portion 130 protruding outward through the RFID washer 110 is pressed by the punch press P, which is the eyelet fastening device, and starts to be wound from the end by the annular groove of the punch press P. The barrel portion 130 is continuously wound from the end to form a winding portion 136, and the winding portion 136 is in close contact with the inner margin 113 of the RFID washer 110, thereby the RFID washer 110 and the eyelet base. 120 is firmly fixed. In this embodiment, the end of the barrel portion 130 is wound to fasten the RFID washer 110 and the eyelet base 120, but other conventional eyelet fastening methods may be used in addition to the RFID fastened by these methods. Dragon eyelets will also be included in the present invention.

As shown in FIG. 1, the eyelet base 120, the object OBJ, and the RFID washer 110 are sequentially arranged up and down, and the barrel portion 130 is provided with the washer hole 114 of the RFID washer 110. While passing through limiting the horizontal movement of the RFID washer 110, while the RFID washer 110 and the eyelet base 120 is tightly fixed to the object (OBJ) by a punch press (P), such as the RFID washer 110 and eyelet base ( 120 is firmly fixed so that vertical movement is limited.

In the RFID eyelet 100 according to the present embodiment, the eyelet base 120 and the RFID washer 110 are tightly fixed, and the RFID washer 110 may be firmly fixed to the object OBJ. In addition, since the RFID washer 110 is closely adhered to the object OBJ, the number of collisions with other objects or surroundings of the surroundings is reduced, and even if a collision occurs, the shock can be absorbed through the object. Can be effectively protected.

4 is a partially enlarged cross-sectional view for describing an eyelet for RFID according to another embodiment of the present invention similar to the first embodiment.

Referring to FIG. 4, the RFID washer 140 according to the present embodiment similar to the first embodiment includes an eyelet substrate 142, an antenna unit 146, and an RFID chip 148. In the first embodiment, the antenna portion 116 and the RFID chip 118 are formed on the eyelet substrate 112, but in this embodiment, the antenna portion 146 and the RFID chip 148 are stacked on the eyelet substrate 142. It is characterized in that formed in the structure. By forming the antenna unit 146 and the RFID chip 148 in a laminated structure from the manufacturing process, it is possible to safely protect the RFID components sensitive to impacts or environmental conditions, and is used for articles that are inevitable in the harsh conditions of experimentation or tough management. It can be used stably without damaging the tag. In addition, since the RFID-related components can be safely protected, the life of the RFID washer 140 can be extended, and the RFID-related cost can be reduced by reusing the RFID washer 140.

However, in the RFID eyelet 100 according to the first embodiment, since the eyelet base 120 is made of a conductive material, an eddy current is generated from the eyelet base 120 as the reader-writer device approaches. This eddy current may interfere with the smooth electromagnetic communication between the RFID washer 110 and the reader-writer device. Of course, since the RFID washer 110 is separated from the eyelet base 120 with the object OBJ interposed therebetween, the RFID washer 110 is less disturbed by the conductive material, but there is an electromagnetic wave blocking material between the eyelet base 120 and the RFID washer 110. It is also possible to further improve the reception rate of the RFID eyelet 100 by interposing it.

FIG. 5 is a cross-sectional view for describing an RFID eyelet according to another embodiment of the present invention similar to the first embodiment, wherein an electromagnetic wave is interposed between the RFID washer 110 and the eyelet base 120. An example of improving the reception rate of is shown.

Referring to FIG. 5, the RFID eyelet 101 includes an RFID washer 110 and an eyelet base 120, and the eyelet base 120 includes a rim 125 and a barrel 130. Compared with the RFID eyelet 100 of the first embodiment, the RFID eyelet 101 of FIG. 5 further includes a magnetic material blocking material 150, and an object OBJ and a magnetic material blocking material 150 on the RFID washer 110. And eyelet base 120 are sequentially arranged.

The ferrite and the magnetic material may block external electromagnetic waves to suppress the eyelet base 120 from interfering with electromagnetic communication. Therefore, by using the magnetic material blocking material 150 in the high frequency region of about 900 MHz or more as well as the low frequency region below it, more improved communication efficiency can be obtained.

Referring back to FIGS. 1 and 2, the RFID eyelet 100 according to the first embodiment may be usefully used in a high frequency region of about 900 MHz or more as well as in a low frequency region of about 13.56 MHz or less. In detail, the RFID eyelet 100 passes close to the reader-writer device (not shown), receives a signal for a data request from the reader-writer device, and responds to the signal received from the antenna unit 116. The chip 118 may generate signals or modify data stored internally.

The object (OBJ) may be a tag that is bound to a cargo and indicates a destination and a departure point of the cargo, and may be various kinds of mails, parcels, logistics packaging materials, tags for clothes, and tents for cargo vehicles.

In addition, the RFID eyelets may be formed in various shapes, which may be variously selected and changed from conventional eyelets according to a user's needs or inclinations, and use examples of various conventional eyelets may be applied to the present invention. .

6 is a schematic view for explaining an RFID washer of an RFID eyelet according to another embodiment of the present invention similar to the first embodiment.

Referring to FIG. 6, in addition to the coil type inductively coupled antenna unit 116, a dipole type antenna A may be used for the RFID washer 110. Antenna (A) and RFID chip (C) that can be used in the RFID module can be manufactured in various shapes and sizes as shown in (a) to (d), in addition to other polarity antennas that can be conventional and developed Can be replaced with In particular, these antennas can be effectively used at UHF frequencies above 900 MHz.

Example 2

7 is an exploded perspective view of an RFID eyelet according to a second embodiment of the present invention, and FIG. 8 is a partial cross-sectional view showing a fastened state of the RFID eyelet according to the second embodiment.

7 and 8, the RFID eyelet 200 according to the second embodiment includes an RFID washer 210 and an eyelet base 220, and the object OBJ includes an RFID washer 210 and an eyelet base. Interposed between the 220, the RFID washer 210 and the eyelet base 220 are tightly fixed by fastening both parts. Since the basic structure is similar in principle to the RFID eyelet 100 of the first embodiment, most of the description can refer to the description and the drawings of the previous embodiment. However, in the RFID eyelet 200 according to the present embodiment, the antenna unit 216 is formed larger than the rim 225 in the RFID washer 110, and the inner radius of the antenna unit 216 is outside the rim 225. It is characterized in that it is larger than the radius, the RFID washer 210 of this structure can be usefully operated as an RFID tag in the reader-writer device using a low frequency region of about 13.56MHz or less.

The RFID washer 210 is electrically connected to the eyelet substrate 212 including the washer hole 214, the antenna unit 216 and the antenna unit 216 formed on the eyelet substrate 212 along the periphery of the washer hole 214. It includes an RFID chip 218 connected to.

Although the eyelet substrate 212 is formed to have a larger size than the rim 225 of the eyelet base 220 in the present embodiment, it is almost similar to the ring substrate including the washer hole 214 formed at the center thereof. In addition, the eyelet substrate 212 has a greatly improved strength by forming a laminated structure of a non-conductive material such as PVC, PCB, PE, PA, and the like. In addition, an inner margin 213 is formed around the washer hole 214 in the RFID washer 210, and the eyelet base 220 and the RFID washer 210 are fixed to each other through the inner margin 213.

An antenna unit 216 is formed around the washer hole 214 on the eyelet substrate 212. In this embodiment, the antenna unit 216 is formed in a ring shape as a whole. Specifically, a conductive material such as aluminum, iron, or copper is spirally connected to form a ring shape as a whole. However, since the inner radius of the antenna portion 216 is larger than the outer radius of the rim 225, the antenna portion 216 is spaced apart from the rim 225 by a predetermined interval. This is to be spaced apart from the rim 225 made of a conductive material so as not to interfere with the electromagnetic wave as much as possible, preferably at least 5 mm or more from the other portions of the rim 225 or the eyelet base 220. However, the minimum separation distance may be further narrowed through the frequency domain and the actual application case.

The RFID chip 218 is mounted on the eyelet substrate 222, and the RFID washer 210 is completed by electrically connecting the RFID chip 218 with the copper / aluminum pattern forming the antenna unit 216. The completed RFID washer 210 is disposed such that the antenna unit 216 and the RFID chip 218 face the eyelet base 220, and the antenna washer 216 is fixed by the RFID washer 210 and the eyelet base 220. ) And the RFID chip 218 are secured in close contact with the object OBJ.

An eyelet base 220 is provided opposite the RFID washer 210. Eyelet base 220 according to the present embodiment is composed of a conductive material, and includes a rim 225 having a circular outline and a barrel portion 230 formed integrally with the rim 225. The barrel portion 230 is formed in a cylindrical shape and passes through the hole of the object OBJ and the washer hole 214 of the RFID washer 210. The barrel 230 which protrudes outwards through the RFID washer 210 is pressed by the punch press P, which is an eyelet fastening device, is wound from the end by the annular groove of the punch press P, and is wound up 236. ), And the winding part 236 is in close contact with the inner margin 213 of the RFID washer 210, thereby firmly fixing the RFID washer 210 and the eyelet base 220. In this embodiment, the end of the barrel portion 230 is wound to fasten the RFID washer 210 and the eyelet base 220, but other conventional eyelet fastening methods may be used, and RFID fastened by these methods may be used. Dragon eyelets will also be included in the present invention.

As shown in FIG. 7, the eyelet base 220, the object OBJ, and the RFID washer 210 are sequentially arranged up and down, and the barrel portion 230 forms the washer hole 214 of the RFID washer 210. While passing through limiting the horizontal movement of the RFID washer 210, the RFID washer 210 and the eyelet base 220 is tightly fixed to the object (OBJ) by the punch press (P), etc. RFID washer 210 and eyelet base ( 220 is firmly fixed so that vertical movement is limited.

In addition, the RFID eyelet 200 may be usefully used in a high frequency region of about 900 MHz or more as well as in a low frequency region of about 13.56 MHz or less. The RFID eyelet 200 passes close to the reader-writer device (not shown), receives a signal for a data request from the reader-writer device, and responds to the signal received from the antenna unit 216. ) Can generate signals or modify data stored internally.

As shown in FIG. 5, even in the RFID eyelet according to the present embodiment, improved communication efficiency may be obtained by interposing a magnetic material such as ferrite between the rim 225 and the RFID washer 210. In addition, the description of the present embodiment may refer to the description of the previous embodiment, and other modifications described in the previous embodiment may also be applied to the present embodiment.

Example 3

9 is an exploded perspective view of an RFID eyelet according to a third embodiment of the present invention, and FIG. 10 is a bottom view for explaining a fastened state of the RFID eyelet according to the third embodiment.

9 and 10, the RFID eyelet 300 according to the third embodiment includes an RFID washer 310 and an eyelet base 320, and the object OBJ includes an RFID washer 310 and an eyelet base. Interposed between the 320, the RFID washer 310 and the eyelet base 320 are tightly fixed to the object OBJ by fastening both parts. Since the basic structure is similar in principle to the eyelets for RFID 100 and 200 of the previous embodiments, most of the description may refer to the description and the drawings of the previous embodiments. However, in the RFID eyelet 300 according to the present embodiment, the RFID washer 310 is largely formed and the necessary information such as the product number or the price can be described on the extra area, so that it can be used as a single tag. have. In addition, the antenna portion 316 is also large and is exposed from the outside of the rim 325, the barrel portion 330 is not cylindrical, but includes two barrel legs (332, 334) easy to mount the eyelet And can be separated.

Unlike the conventional eyelet washer, the RFID washer 310 according to the present embodiment can be used as a tag in addition to its use as a washer for fixing the eyelet base 320, and the necessary information can be written by the user. By integrating conventional tag and RFID module and eyelet washer, RFID tag can be installed and detached more easily, and it can reduce the cost of distribution and convenience of management by collectively managing logistics and products through mass production. have.

In addition, the antenna unit 316 of this structure also overcomes communication obstacles from the rim 325 and the barrel legs 332 and 334, so that the RFID eyelet 300 can be used even in a low frequency region of about 13.56 MHz or less. will be.

The eyelet base 320 is made of a conductive material and includes a rim 325 having a circular outline and a barrel portion 330 integrally formed with the rim 325. The barrel portion 330 includes a first barrel leg 332 and a second barrel leg 334, and the first and second barrel legs 332 and 334 are disposed to face each other and are formed downward. As shown, the first and second barrel legs 332 and 334 sequentially pass through the hole of the object OBJ and the washer hole 314 of the RFID washer 310, and are then bent left and right to form the eyelet base 320. ) Is fixed to the RFID washer 310. In order to bend the barrel legs 332 and 334, a separate press device may be used, but the user may bend and detach by hand by hand, which is very easy.

An RFID washer 310 is provided opposite the eyelet base 320. The RFID washer 310 includes an eyelet substrate 312 manufactured in the form of a tag, an antenna unit 316 formed around the washer hole 314, and an RFID chip 318. In the RFID washer 340, the eyelet substrate 312 is formed into a square or other tag shape. Information such as product information and product price may be described on the eyelet substrate 312, and a washer hole 314 is formed at one side of the eyelet substrate 312.

As shown in FIG. 10, a portion of the antenna portion 316 is adjacent to the first and second barrel legs 332 and 334, but the inner diameter of the antenna portion 316 is larger than the outer diameter of the rim 325. And the portions overlapping with the barrel legs 332 and 334 occupy a relatively small area and thus are less affected by electromagnetic wave communication. This is to avoid disturbing the electromagnetic wave as much as possible from the rim 325 made of a conductive material, and according to the state of the art, at least about 5 mm away from the rim 325 or other eyelet structure.

After mounting the RFID chip 318 on the eyelet substrate 312, the RFID washer 340 is completed by electrically connecting the RFID chip 318 with the copper / aluminum pattern that becomes the antenna unit 316. The completed RFID washer 310 is disposed such that the antenna unit 316 and the RFID chip 318 face the eyelet base 320, and the RFID washer 310 and the eyelet base 320 are fixed to each other to fix the antenna unit and the RFID. The chip 318 is in close contact with the object OBJ and protected.

The object OBJ and the eyelet base 320 are sequentially positioned on the RFID washer 310, and the eyelet fastening device (not shown) arranges the components of the RFID eyelet 300 in the above order, and then the washer. The eyelets can be fastened by opening the first and second barrel legs 332 and 334 protruding from the hole 314 to both sides.

In the RFID eyelet 300, the antenna unit 316 is spaced apart from the rim 325 by a predetermined interval, and most of the antenna unit 316 is spaced apart from the barrel legs 332 and 334 by a predetermined interval. . Accordingly, the RFID washer 310 can sufficiently transmit and receive a necessary signal with the reader-writer device despite disturbing the conductive material, and the RFID chip 318 generates a signal or internally in response to the signal received from the antenna unit. You can modify the stored data. In particular, the RFID eyelet 300 having the improved communication function of the electromagnetic wave can communicate smoothly with the reader / writer even in a low frequency region of about 13.56 MHz or less.

As can be seen in Figure 5, even in the RFID eyelet according to the present embodiment it is possible to obtain a further improved communication efficiency by interposing a magnetic material blocking material such as ferrite between the rim 325 and the RFID washer 310. In addition, the description of the present embodiment may refer to the description of the previous embodiment, and other modifications described in the previous embodiment may also be applied to the present embodiment.

Therefore, the RFID eyelet according to the present invention can effectively protect the RFID washer from an external harsh environment by closely fixing the RFID washer to the object, and the eyelet structure is fixed in close contact with the object and has a relatively small size. This takes up less space.

In addition, by using an RFID washer integrated with the RFID module and the eyelet washer, it is possible to facilitate the fastening of the eyelet, it is possible to shorten the assembly process can be usefully applied through mass production and assembly facilities. In addition, RFID washers can be removed and reused to significantly reduce RFID management and operating costs.

In addition, conventional RFID tags suffer from electromagnetic communication from surrounding conductive materials when used in the low frequency region of about 13.56 MHz or less. However, the RFID eyelet according to the present invention can solve the communication problem in the low frequency region by exposing the antenna unit by a predetermined distance from the RFID washer. In addition, since the choice of electromagnetic wave communication becomes wider in the high frequency region of about 900 MHz or more, the RFID eyelet according to the present invention can effectively fix and protect the RFID washer by using the structure of the eyelet. By adding RFID function, it is possible to obtain more improved use effect.

In addition, since eyelets are widely used in various fields in real life, they have great potential for their application and ripple effects, and their manufacturing and mounting processes are simple, which is very advantageous for mass production. Moreover, assembly systems such as eyelet fastening devices may not be expensive to combine eyelet and RFID technology since the related technologies are already mature and used in many fields.

In addition, RFID eyelets can be applied in various fields because the size of the tag can be miniaturized.

In addition, since the RFID washer among the RFID eyelets is relatively expensive, many economic effects can be obtained when the RFID washer is reused. Therefore, by using the eyelet structure that can be easily separated or dismantled, even after using the RFID eyelet once, the expensive RFID washer can be easily separated and used again, and thus the economic effect can be easily obtained.

In addition, as eyelets of various shapes and designs are used, RFID eyelets can express various shapes, shapes, and colors, and thus are very valuable as products.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

1 is an exploded perspective view of an RFID eyelet according to a first embodiment of the present invention.

2 is a partial cross-sectional view showing a fastened state of the RFID eyelet according to the first embodiment.

FIG. 3 is an enlarged cross-sectional view partially illustrating part A of FIG. 2 to explain the structure of the RFID washer according to the first embodiment.

4 is a partially enlarged cross-sectional view for describing an eyelet for RFID according to another embodiment of the present invention similar to the first embodiment.

5 is a cross-sectional view for explaining an eyelash for RFID according to another embodiment of the present invention similar to the first embodiment;

6 is a schematic view for explaining an RFID washer of an RFID eyelet according to another embodiment of the present invention similar to the first embodiment.

7 is an exploded perspective view of an RFID eyelet according to a second embodiment of the present invention.

8 is a partial cross-sectional view showing the fastened state of the RFID eyelet according to the second embodiment.

9 is an exploded perspective view of an RFID eyelet according to a third embodiment of the present invention.

10 is a bottom view for explaining a fastened state of the RFID eyelet according to the third embodiment.

<Explanation of symbols for main parts of the drawings>

100, 200: Eyelet 110, 210 for RFID: RFID washer

112 and 212: eyelet substrates 114 and 214: washer holes

116.216: Antenna part 118, 218: RFID chip

120, 220: Eyelet base 125, 225: Rim

130, 230: barrel 136, 236: winding

Claims (8)

An RFID washer including an eyelet substrate having a washer hole formed at one side thereof, an antenna unit formed on the eyelet substrate along the periphery of the washer hole, and an RFID circuit formed at the eyelet substrate and electrically connected to the antenna unit; And An RFID eyelet having an eyelet base including a rim disposed to face the RFID washer with an object interposed therebetween, and a barrel portion formed integrally with the rim and fixed to the RFID washer through the washer hole. . The method of claim 1, The eyelet substrate is an RFID eyelet, characterized in that formed in a laminated structure. The method of claim 2, And the antenna unit and the RFID circuit unit are interposed between the stacked structure of the eyelet substrate. And the antenna unit of the RFID washer is separated from the adjacent rim by a predetermined distance or more. The method of claim 4, wherein RFID eyelet, characterized in that the entire antenna portion is located outside the adjacent rim. The method of claim 1, The barrel portion is formed in a cylindrical shape having a circular or polygonal cross section, and the barrel portion is partially wound from an end portion of the barrel portion and is fixed to the RFID washer. The method of claim 1, The barrel portion includes at least one barrel leg formed integrally with the rim, wherein the barrel leg is bent outward after passing through the washer hole to fasten the eyelet base and the RFID washer. Eyelet. The method of claim 1, At least one magnetic material blocking material is interposed between the rim of the eyelet base and the object or between the RFID washer and the object.