KR20050105674A - 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 contactless method using 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 and receive the necessary data by the non-contact method with the reader-writer device. In some cases, the RFID tag resonates the induced current by using the electromagnetic wave generated from the reader-writer device, so it is used as a power source. It has the advantage of being able to work without it.

As summarized in [Table 1], identification methods using RFID technology include a method using a tag itself, a method of integrating a card manufactured by laminating, a method using an adhesive medium such as a sticker, and injection molding. molding to integrally mold a tag. 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 can not be used for other purposes by separating the RFID parts separately, Injection molding itself has the disadvantage of being difficult and relatively expensive compared to other processing.

As already mentioned, the RFID tag is composed of an antenna unit and an IC chip. Basically, a sheet-shaped substrate made of various plastic materials such as PVC, PCB, PE, and PA is used, and the substrate is generally formed to a thickness of about 100 μm, thereby forming an antenna unit. The conducting wire of the antenna unit may be mounted on a substrate together with a chip or connected to a chip outside the film by a direct bonding method or a chip on board (COB) 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. Accordingly, the size of the antenna is determined according to the recognition 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. Since the existing RFID employing frequency is used in the range of about 13.56 MHz or less, there are limitations in the size 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, which will alleviate many restrictions on the antenna size and housing material. This is because the RFID tag used in the high frequency region of about 900 MHz or more is smoothly communicated with the reader-writer device compared to the RFID tag used in the low frequency region, and thus the antenna size and the material of the component are limited. . Therefore, it is expected that the size of the RFID tag can be greatly reduced in the future, and it is expected that various types of RFID tags can be implemented without limitations on shape or size.

However, the fastening or mounting of conventional RFID tags has a problem that there is a risk of loss or detachment of the RFID tag correspondingly, and the RFID module can be separated and reused from the tag, but exposed to the surrounding environment Another problem is that it can be affected by the environment. In addition, there is disclosed an RFID tag that blocks the RFID module by injection molding to separate the RFID module from the harsh environment, but the molding process is complicated because of the complicated molding process, and the manufacturing cost for manufacturing the RFID tag It can be a cause of the increase in manufacturing cost and selling price is high, and since it is almost impossible to reuse and reuse the RFID module from the tag produced through the molding, there is a disadvantage that the use process itself is wasteful.

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

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 object of the present invention, an RFID eyelet includes an eyelet washer, an eyelet base, and an RFID module. Basically, in constructing the RFID tag, the advantages of the eyelet and the advantages of the RFID tag can be obtained by using the structure of the conventional eyelet, and the RFID module is interposed between the eyelet base and the eyelet washer together with the object. It is easily fixed by

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. It includes a part and is disposed opposite to the eyelet washer with the object interposed therebetween and engaged with the eyelet washer. The barrel portion may be formed in a cylindrical, separated cylindrical or leg (leg), etc., the barrel portion is fixed to the eyelet washer through the object and the washer hole. Here, the separated cylindrical means a cylindrical shape as a whole, but means a structure composed of two semi-cylindrical shapes or three or more round cylindrical walls.

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. In addition, in the present invention, the shape and type of eyelets may refer to conventional eyelets. That is, according to the shape of the rim or the eyelet washer can be changed in various ways, such as circular, oval, square, etc., the barrel portion may also be formed in various shapes.

The RFID module for performing the RFID function is fixed between the eyelet washer and the eyelet base together with the object, and the RFID module includes an RFID substrate, an antenna unit, and an RFID circuit unit. As RFID-related technology develops, it becomes possible to implement an RFID circuit in the form of a chip, and according to the development of RFID-related technology related to antenna manufacturing technology, the size of an RFID module can be adjusted to several to several tens of millimeters. The size of the RFID module can be made smaller than the size of the eyelet. By using the eyelet, the RFID module can be effectively fixed on the object, the conventional eyelet function can be maintained and improved, and the conventional eyelet fastening device can be used as it is. It is possible and economical in many ways. The eyelet base or eyelet washer formed in the same size or larger than the RFID module can be protected by blocking the internal RFID module from the outside, and using the structure of the eyelet firmly fixed to the RFID module against the object, It can effectively protect against external shock.

In addition, eyelets are widely used in many fields in real life, and their applications and ramifications can grow tremendously, and their manufacturing and mounting processes are simple, and at the same time, the production facilities system of eyelets is already widely distributed. Has the advantage that can be significantly lowered.

For example, eyelets are currently used in tags used to identify air cargo or train cargo, stock cargoes such as warehouses, and merchandise for sale in various distribution stores. 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 or goods can be prevented in advance. In addition, RFID eyelets can withstand external shocks or other harsh environments and can protect the internal RFID module.If the RFID tags are bound to cargo using rubber bands or wires, they can be separated and reused. It is economical.

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.

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 when the size of the antenna and the frequency used are low. 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 that is conventionally used corresponds to a relatively low frequency, and RFID tags in such a low frequency region are often subjected to communication obstacles by surrounding conductive materials.

In order to overcome the above problems, there is a method of partially exposing the antenna unit to the outside from the rim or eyelet washer adjacent to the RFID module. By exposing the antenna unit for directly receiving the electromagnetic wave to the outside for transmitting and receiving electromagnetic waves without interference of the conductive material. In order to improve the efficiency of electromagnetic wave transmission, the entire antenna formed in the form of a conductor or a dipole spirally around the through hole in the RFID substrate at the antenna unit can be exposed from the rim or the eyelet washer. It can also be spaced apart from the outside by some distance.

Of course, in the future, attempts are being made to use the communication frequency for RFID at about 900 MHz or more, and by using the high frequency, there is no need to expose the antenna unit 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, by inserting a barrier material such as ferrite between the eyelet base, the eyelet washer and the RFID module, it is possible to supplement and solve the communication problem.

In particular, when using a high frequency of 900MHz or more can perform the RFID function even with a polarized antenna, such as a dipole. 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.

One of the great advantages of RFID eyelets is that conventional eyelet fastening devices can be used to mount eyelets to an object. A device capable of automatically or manually feeding an RFID module to a conventional eyelet fastening device may be used, and the RFID module is simply attached to an object first, and then the eyelet is used as a conventional eyelet fastening device. Can be fastened RFID eyelets. That is, since a conventional fastening device can be used, there is no great burden to add RFID technology to eyelets.

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

1 and 2, the RFID eyelet 100 according to the first embodiment includes an eyelet washer 110, an eyelet base 120, and an RFID module 140, and an object OBJ and an RFID module. 140 is interposed between the eyelet washer 110 and the eyelet base 120 is tightly fixed by the fastening of both parts.

The eyelet washer 110 is formed in a circular shape and is made of a conductive material such as aluminum, iron, or copper. A washer hole 112 is formed in the center of the eyelet washer 110. The inner margin 114 is formed around the washer hole 112 in the eyelet washer 110, and the eyelet base 120 and the eyelet washer 110 are fixed to each other through the inner margin 114.

An eyelet base 120 is provided opposite the eyelet washer 110. The eyelet base 120 is also made of a conductive material, such as the eyelet washer 110, 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 through hole 143 of the RFID module 140, the hole of the object OBJ, and the washer hole 112 of the eyelet washer 110. The barrel portion 130 protruding outward through the eyelet 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 be in close contact with the inner margin 114 of the eyelet washer 110, the eyelet washer 110 and the eyelet base 120 is firmly fixed. In this embodiment, the ends of the barrel 130 are fastened to fasten the eyelet washer 110 and the eyelet base 120, but in addition, 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.

Referring back to FIGS. 1 and 2, before the eyelet washer 110 and the eyelet base 120 are fastened, an RFID module 140 is interposed between the rim 125 and the object OBJ of the eyelet base 120. do. A ring-shaped RFID module 140 is disposed, and the barrel portion 130 fixes the RFID module 140 while passing through the through hole 143 of the RFID module 140, and punches P and the like. As the eyelet washer 110 and the eyelet base 120 are tightly fixed to the object OBJ, the RFID module 140 is firmly fastened to the object OBJ.

In the present embodiment, the rim 125 of the eyelet base 120 is formed to have a size larger than that of the RFID module 140, thereby covering the entire RFID module 140 to be blocked from the outside and protecting the RFID module 140 from external shocks. can do. However, since the rim 125 is made of a conductive material, an eddy current may be generated as the reader-writer device approaches, and the eddy current formed on the rim 125 may be an RFID module 140 and a reader-writer device. It can interfere with smooth communication between them. Basically, the low frequency or high frequency is not particularly distinguished, but the RFID eyelet 100 according to the present embodiment may be particularly useful in the high frequency region of about 900 MHz.

The RFID module 140 is formed in a ring shape similarly to the eyelet washer 110. To this end, the RFID module 140 includes an RFID substrate 142 including a passage hole 143 corresponding to the barrel 130, an antenna unit 144 formed on the RFID substrate along the periphery of the passage hole 143, and The RFID chip 146 is electrically connected to the antenna unit 144. The RFID substrate 142 is made of a non-conductive material such as PVC, PCB, PE, PA, and the like, and is a thin sheet formed to a thickness of about 100 μm or less. An antenna unit 144 is formed on the RFID substrate 142.

The antenna unit 144 includes a spiral conductor formed on the RFID substrate 142. In the present specification, the spiral is basically formed in a circular shape, and in addition to the spiral of increasing radius, it may be used as a concept including a shape overlapping with a polygonal shape, such as a rectangle or a hexagon, and moving away from the center. Shapes of various structures for smoothly moving may also be included. In this embodiment, the antenna unit 144 is formed in a spiral around the through-hole 143, generally forming a copper thin film or an aluminum thin film formed on the RFID substrate 142, and etching according to the antenna pattern The antenna portion 144 may be formed by partially removing the thin film by a method of forming a thin film, or may be formed by an embedding method of directly forming a copper or aluminum conductor.

After mounting the RFID chip 146 on the RFID substrate 142, the RFID module 140 is completed by electrically connecting the RFID chip 146 with the copper / aluminum pattern that becomes the antenna unit 144.

As shown in FIG. 1, the object OBJ, the RFID module 140, and the eyelet base 120 are sequentially positioned on the eyelet washer 110, and the eyelet fastening device (not shown) is RFID in the above order. After arranging the components of the dragon eyelet 100, the eyelets can be fastened.

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 144 in response to the RFID chip 146. ) Can generate signals or modify data stored internally. At this time, the RFID module 140 is physically protected by the eyelet washer 110 and the eyelet base 120 made of metal, and can communicate with the reader-writer device using high frequency.

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.

3 is an exploded perspective view for explaining an RFID eyelet according to another embodiment of the present invention similar to the first embodiment.

Referring to FIG. 3, the RFID eyelet 101 includes an eyelet washer 110, an eyelet base 120, and an RFID module 140, and the eyelet base 120 includes a rim 125 and a barrel 130. It includes. Compared to the RFID eyelet 100 of the first embodiment, the RFID eyelet 101 of FIG. 3 further includes a magnetic barrier material 150, and the RFID module 140 and the object OBJ on the eyelet washer 110. And eyelet base 120 are sequentially arranged.

First, the ferrite and the magnetic material may block external electromagnetic waves, thereby preventing the eyelet washer 110 or 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.

In addition, the RFID module 140 may select any one of the eyelet washer 110 and the eyelet base 120 to be adjacent to each other, and is not particularly limited. 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. .

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

Referring to FIG. 4, in addition to the coil type inductively coupled antenna unit 144, a dipole type antenna A may be used for the RFID module 140. 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

FIG. 5 is an exploded perspective view of an RFID eyelet according to a second embodiment of the present invention, FIG. 6 is a partial cross-sectional view showing a fastened state of the RFID eyelet according to the second embodiment, and FIG. 7 is a second embodiment. Is a perspective view showing a fastened state of the RFID eyelet according to the present invention.

5 to 7, the RFID eyelet 200 according to the second embodiment includes an eyelet washer 210, an eyelet base 220, and an RFID module 240, and an object OBJ and an RFID module. The 240 is interposed between the eyelet washer 210 and the eyelet base 220 to be tightly fixed to the object OBJ 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, the RFID eyelet 200 according to the present embodiment is characterized in that the entire antenna portion 244 is exposed from the outside of the rim 225 in the RFID module 240, and the RFID module 240 having such a structure It can be applied as an RFID tag for a reader-writer device using a low frequency region of about 13.56 MHz or less.

The eyelet washer 210 is formed in a circular shape and is made of a conductive material such as aluminum, iron, or copper. A washer hole 212 is formed in the center of the eyelet washer 210, and an inner margin 214 is formed around the washer hole 212. As shown in FIG. 5, the end of the barrel portion 230 is wound to form a winding portion 236, and the winding portion 236 and the inner margin 214 are in close contact with each other, and the eyelet base 220 and the eyelet washer. Secure 210 to each other.

The eyelet base 220 is also made 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 part 230 is formed in a cylindrical shape and passes through the through hole 243 of the RFID module 240, the hole of the object OBJ, and the washer hole 212 of the eyelet washer 210. The end portion of the barrel portion 230 protruding from the eyelet washer 210 is pressed by the punch press P, and the end portion of the barrel portion 230 is also wound in an annular shape by the annular groove of the punch press P. 236). As the winding part 236 is in close contact with the inner margin 214 of the eyelet washer 210, the eyelet washer 210 and the eyelet base 220 are firmly fixed. In this embodiment, the end of the barrel portion 230 is wound to fasten the eyelet washer 210 and the eyelet base 220, but other conventional eyelet fastening methods may be used.

A ring-shaped RFID module 240 is interposed between the rim 225 of the eyelet base 220 and the object OBJ. The barrel part 230 fixes the RFID module 240 while passing through the passage hole 243 of the RFID module 240, and the eyelet washer 210 and the eyelet base 220 are formed by the punch press P or the like. While tightly fixed to the OBJ, the RFID module 240 is firmly fastened to the object OBJ.

In this embodiment, the RFID module 240 of the eyelet base 220 is formed to have a larger size than the rim 225. The RFID module 240 is also formed in a ring shape, and includes an RFID substrate 242 including a passage hole 243, an antenna portion 244 and an antenna portion 244 formed on the RFID substrate along the periphery of the passage hole 243. ) And an RFID chip 246 electrically connected thereto. In particular, since the antenna unit 244 is formed relatively far from the passage hole 243, the antenna unit 244 is spaced apart from the exterior of the rim 225 by a predetermined distance d even after being engaged with the eyelet base 220. This is to avoid disturbing the electromagnetic wave as much as possible from the rim 225 made of a conductive material, preferably at least about 5mm away from the rim 225 or other eyelet structure. Since the eyelet base 220 and the eyelet washer 210 are firmly fastened to each other, the RFID module 240 may be stably fixed to the object OBJ.

The antenna portion 244 is formed in a spiral around the through hole 243, and the conductive portion of the antenna portion 244 is an antenna pattern formed by etching a thin film made of copper and aluminum (etching method), or a conductive material May be an antenna pattern formed by directly implanting into the RFID substrate 242 (invading method).

After mounting the RFID chip 246 on the RFID substrate 242, the RFID module 240 is completed by electrically connecting the RFID chip 246 with the copper / aluminum pattern that becomes the antenna unit 244.

As shown in FIG. 5, the object OBJ, the RFID module 240, and the eyelet base 220 are sequentially positioned on the eyelet washer 210, and the eyelet fastening device (not shown) is RFID in the above order. After arranging the components of the dragon eyelet 200, the eyelets can be fastened by pressing in the vertical direction.

In the RFID eyelet 200, since the antenna unit 244 is spaced apart from the rim 225 by a predetermined distance d, the RFID module 240 requires a reader-writer device and a necessary signal despite disturbing the conductive material. In response to the signal received from the antenna unit 244, the RFID chip 246 may generate a signal or modify data stored internally. The RFID eyelet 200 according to the present embodiment can communicate smoothly with the reader / writer even in a low frequency region of about 13.56 MHz or less.

As shown in FIG. 3, 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 module 240. 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

FIG. 8 is an exploded perspective view of an RFID eyelet according to a third embodiment of the present invention, FIG. 9 is an enlarged cross-sectional view of a portion AA showing the fastened state of the RFID eyelet according to the third embodiment, and FIG. 3 is a bottom view illustrating a state viewed in a B direction to explain a fastened state of the RFID eyelet according to the third embodiment.

8 to 10, the RFID eyelet 300 according to the third embodiment includes an eyelet washer 310, an eyelet base 320, and an RFID module 340, and includes an object OBJ and an RFID module. 340 is interposed between the eyelet washer 310 and the eyelet base 320 is 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 entire antenna part is exposed from the outside of the rim 325 in the RFID module 340, and the barrel part 330 is not cylindrical but has two barrel legs. ), 332 and 334, and the antenna unit is divided into two parts on the RFID substrate 342. The RFID module 340 having such a structure may add two or more functions to one RFID tag, and overcome the communication obstacles caused by the ring 325 and the barrel legs 333 and 334, and the low frequency region of about 13.56 MHz or less. RFID eyelet 300 can also be used.

The eyelet washer 310 is formed in a circular shape and is made of a conductive material such as aluminum, iron, or copper. A washer hole 312 is formed at the center of the eyelet washer 310. Correspondingly, the eyelet base 320 is also 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 through hole 343 of the RFID module 340, the hole of the object OBJ, and the washer hole 312 of the eyelet washer 310. After passing through, it is bent left and right to fix the eyelet base 320 to the eyelet 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 fasten directly.

A ring-shaped RFID module 340 is interposed between the rim 325 of the eyelet base 320 and the object OBJ. In this embodiment, the RFID module 340 of the eyelet base 320 is formed to have a larger size than the rim 325. As in the previous embodiment, the RFID module 340 is formed in a ring shape, and is electrically connected to the RFID substrate 342 including the through hole 343, the antenna unit and the antenna unit formed around the through hole 343. RFID chips 346a and 346b.

In particular, the antenna unit includes a first lead portion 344a and a second lead portion 344b disposed on the RFID substrate 342 so as to face each other, and the first and second lead portions 344a and 344b may include pass-through holes. It is formed relatively far from 343 and is spaced apart from the outside of the rim 325 by a predetermined distance. This is to avoid disturbing the electromagnetic wave as much as possible from the rim 325 made of a conductive material, preferably at least about 5mm away from the rim 325 or other eyelet structure. In addition, the first and second lead portions 334a and 344b are locally divided and formed in different regions, and the RFID chips 346a and 346b are electrically connected to the first and second lead portions 334a and 344b, respectively. do. By substantially forming two or more antenna units and RFID chips separately in one RFID module, the same or different functions may be performed. For example, there are cases in which each RFID chip type needs to be changed according to a peripheral device and a frequency used, but the RDIF chip may perform the same function although the RDIF chip is different. In addition, there is a case in which a user or an administrator needs to manage the information separately according to the characteristics of the information to be obtained. At this time, by separately managing the RFID chip, two or more information can be independently managed in one process.

When the antenna portion is formed in a circular spiral shape, the first and second barrel legs 332 and 334 are partially bent, so that the antenna portion and the metal barrel legs 332 and 334 are too close to each other to communicate electromagnetic waves. It can interfere. As in the present embodiment, the first and second lead portions 334a and 344b are locally divided and formed in different regions so that the first and second lead portions 344a and 344b are disposed to face each other. , 334) can minimize communication disturbance. The first and second conductive portions 344a and 344b form a spiral shape as a whole while thin conductive wires form spirals.

After mounting the RFID chip 346 on the RFID substrate 342, the RFID module 340 is completed by electrically connecting the RFID chip 346 with the copper / aluminum pattern serving as the antenna unit.

In addition, the RFID module 340 is disposed such that the first and second conductive portions 344a and 344b face downward. The surface on which the first and second conductive parts 344a and 344b and the RFID chip 346 are formed may be in close contact with the object OBJ to protect the RFID module 340 from the outside.

The object OBJ, the RFID module 340, and the eyelet base 320 are sequentially positioned on the eyelet washer 310, and the eyelet fastening device (not shown) is a component of the RFID eyelet 300 in the above order. After arranging, the eyelets may be fastened by opening the first and second barrel legs 332 and 334 protruding from the washer holes 312.

As shown in FIG. 10, in the RFID eyelet 300, the antenna part is spaced apart from the rim 325 by a predetermined interval, and the antenna part is divided into the first and second conductive parts 344a and 344b to make a barrel leg ( 332 and 334 are also spaced apart by a predetermined interval. Accordingly, the RFID module 340 may transmit and receive the necessary signal with the reader-writer device despite disturbing the conductive material, and the RFID chip 346 generates or internally stores the signal in response to the signal received from the antenna unit. You can modify the data. As such, the RFID eyelet 300 having an improved communication function of the electromagnetic wave can smoothly communicate with the reader / writer even in a low frequency region of about 13.56 MHz or less.

In this embodiment, two barrel legs 332 and 334 are formed corresponding to the conductive portions 344a and 344b formed locally in the two regions. However, according to various embodiments of the present disclosure, the number of lead portions and barrel legs may be variously adjusted according to the designer's intention.

In addition, as shown in FIG. 3, even in the RFID eyelet according to the present embodiment, improved communication efficiency may be obtained by interposing a magnetic material blocking material such as ferrite between the rim 325 and the RFID module 340. 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 module from the harsh environment by fixing the RFID module in close contact with 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, 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 part in whole or in part in the RFID module. 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 module by using the eyelet structure. 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 RFID modules are relatively expensive among the RFID eyelets, many economic effects may be obtained when the RFID module 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 module 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.

3 is an exploded perspective view for explaining an RFID eyelet according to another embodiment of the present invention similar to the first embodiment.

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

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

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

7 is a perspective view showing a fastened state of the RFID eyelet according to the second embodiment.

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

9 is an enlarged cross-sectional view of a portion A-A showing the fastened state of the RFID eyelet according to the third embodiment.

FIG. 10 is a bottom view illustrating a state viewed in the B direction to explain a fastened state of the RFID eyelet according to the third embodiment.

<Explanation of symbols for main parts of the drawings>

100: Eyelet 110 for RFID: Eyelet washer

112: washer hole 114: internal margin

120: Eyelet base 125: Rim

130: barrel 140: RFID module

142 ： RFID board 144 ： Antenna part

146 ： RFID chip

Claims (11)

Eyelet washer formed with a washer hole on one side; An eyelet base including a rim disposed to face the eyelet washer with an object interposed therebetween, and a barrel portion integrally formed with the rim and fixed to the eyelet washer through the washer hole through the object; And An RFID eyelet having an RFID module interposed between the eyelet washer and the eyelet base together with the object. The method of claim 1, The RFID module includes an RFID substrate including a passage hole corresponding to the barrel, an antenna unit formed on the RFID substrate along the periphery of the passage hole, and an RFID circuit unit formed on the RFID substrate and electrically connected to the antenna unit. And an RFID module interposed between the eyelet washer and the eyelet base together with the object. The method of claim 2, And said antenna portion is partially exposed from said adjacent rim or said eye washer. The method of claim 3, The antenna unit includes a conductive wire portion formed spirally around the passage hole, the entirety of the conductive wire portion is located in the outer side of the adjacent rim or the eyelet washer. The method of claim 2, The antenna unit is an RFID eyelet, characterized in that it comprises a lead portion formed in the form of a dipole antenna around the through hole. The method of claim 2, And the antenna unit includes a plurality of conductive wire parts formed spirally locally around the passage hole. The method of claim 6, The eyelets for RFID, wherein the RFID circuit unit is independently connected to the lead portion. 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 the end of the barrel portion is RFID eyelet, characterized in that tightly fixed to the eyelet washer. The method of claim 1, The barrel portion includes at least one barrel leg integrally formed with the rim, and the barrel leg is bent outwards after passing through the washer hole to fasten the eyelet base and the eyelet washer. Eyelet. The method of claim 9, The RFID module includes an RFID substrate including a passage hole corresponding to the barrel, an antenna unit formed on the RFID substrate along the periphery of the passage hole, and an RFID circuit unit formed on the RFID substrate and electrically connected to the antenna unit. And the antenna unit includes a conductive part formed in a spiral shape around the through hole so as to be spaced apart from the bent barrel leg by a predetermined distance. The method of claim 1, At least one magnetic blocking material is interposed between the RFID module and the eyelet base or the eyelet washer.