JP2007179489A - Non-contact data carrier, magnetic module and magnetic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnetic module and a magnetic device that enable a non-contact data carrier unsuitable for mounting on a metal surface to operate properly on a metal surface and that operate optimally for each non-contact data carrier size, and to provide a non-contact data carrier mounted with the magnetic module or the magnetic device. <P>SOLUTION: The magnetic module can be used by laminating and arranging it on one surface of the body of the non-contact data carrier that includes a board having an electrically insulating substrate on which an antenna coil and an IC chip that sends and receives information via the antenna coil are arranged. The magnetic module includes a magnetic sheet 11 and an adhesive layer 12 formed on one side or both sides of the magnetic sheet 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a magnetic module, a magnetic device, and a non-contact data carrier to which this magnetic module or magnetic device is attached, which can be arbitrarily attached to a non-contact data carrier that communicates information without contact.

A conventional non-contact type data carrier includes, for example, a non-contact type data carrier inlet having an antenna coil capable of communicating in a predetermined frequency band. In such a conventional non-contact data carrier, even when installed on a metal surface, a technique including a magnetic sheet is disclosed in order to operate normally without disturbing the magnetic field of the coil. (For example, refer to Patent Document 1).
Japanese Patent No. 3262948

  Non-contact type data carriers are arranged and used in various objects. However, in the conventional non-contact type data carrier, specifications of both a type that is installed on the metal surface as described above and a type that does not correspond to the installation of the metal surface are manufactured, and it is preferable from the viewpoint of productivity. It was hard to say. In addition, in the conventional non-contact type data carrier, it is difficult to install a non-contact type data carrier of a type that does not support the installation of the metal surface on the metal surface and operate normally without disturbing the magnetic field of the coil. A new type of contactless data carrier to be installed on the metal surface had to be installed, which was not economical.

  Accordingly, the present invention has been made to solve the above-described problems. A non-contact type data carrier of a type that does not correspond to the installation of a metal surface can be normally operated even on the metal surface. It is an object of the present invention to provide a magnetic body module, a magnetic body device, and a non-contact type data carrier to which the magnetic body module or the magnetic body device is attached that enables an optimum operation corresponding to the size of the data carrier.

  In order to achieve the above object, a non-contact data carrier according to the present invention is a substrate in which an antenna coil and an IC chip that transmits and receives information via the antenna coil are disposed on an electrically insulating substrate. The non-contact type data carrier main body provided with the non-contact type data carrier main body is configured separately from the non-contact type data carrier main body and has a magnetic body stacked on one surface of the non-contact type data carrier main body. And a magnetic module.

  According to this non-contact type data carrier, the non-contact type data carrier main body and the magnetic body module are configured separately, and the magnetic body module is configured to be stacked on one surface of the non-contact type data carrier main body. Can do. In this way, by attaching a separately configured magnetic module, for example, a non-contact type data carrier body that does not support the installation of a metal surface can be attached to the metal surface and operated normally. Become.

  In addition, a non-contact type data carrier according to the present invention includes a non-contact type data carrier including a substrate in which an antenna coil and an IC chip that transmits and receives information are arranged on an electrically insulating substrate. A data carrier main body and the non-contact type data carrier main body are configured separately, and a magnetic module including a magnetic body stacked on one surface of the non-contact type data carrier main body is provided inside. And a magnetic body device comprising a housing for housing.

  According to this non-contact type data carrier, the non-contact type data carrier main body and the magnetic body device are configured separately, and the magnetic body device is configured to be stacked on one surface of the non-contact type data carrier main body. Can do. In this way, by attaching a magnetic device configured separately, for example, even a non-contact type data carrier body that does not support the installation of a metal surface can be attached to the metal surface and operated normally. Become.

  A magnetic body module according to the present invention is a magnetic body module used for any of the non-contact data carriers described above, and is characterized by having a magnetic body.

  The magnetic module according to the present invention is a magnetic module used for any one of the non-contact data carriers described above, and is formed on the magnetic sheet and one or both surfaces of the magnetic sheet. And an adhesive layer formed.

  Further, the magnetic body module according to the present invention is a magnetic body module used for any of the above-described non-contact data carriers, and sandwiches the magnetic body sheet and the magnetic body sheet around the magnetic body sheet. And a resin sheet covering the substrate.

  According to these magnetic body modules, they are configured separately from the non-contact type data carrier body, and can be used by being stacked on one surface of the non-contact type data carrier body. By attaching this magnetic body module, for example, even a non-contact type data carrier body that does not support the installation of a metal surface can be attached to the metal surface and operated normally.

  Here, any of the above-described magnetic body modules may be housed in the housing body to constitute a magnetic body device.

  According to the non-contact type data carrier, the magnetic body module and the magnetic body device of the present invention, the non-contact type data carrier of the type that does not correspond to the installation of the metal surface can be normally operated even on the metal surface. Optimum operation can be enabled corresponding to the size of the contact data carrier.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIGS. 1-6 is the figure which showed typically the cross section of each magnetic body module which concerns on embodiment of this invention. 7-9 is the figure which showed typically the cross section of each magnetic body apparatus which concerns on embodiment of this invention. In addition, the same code | symbol is attached | subjected to the same structure and the overlapping description is simplified or abbreviate | omitted.

  First, the configuration of the magnetic module 10 will be described with reference to FIG.

  As shown in FIG. 1, the magnetic body module 10 includes a magnetic body sheet 11, an adhesive layer 12 laminated on one surface of the magnetic body sheet 11, and a release paper 13 laminated on the adhesive layer 12. Composed.

  The magnetic material sheet 11 is a magnetic material having a sheet shape and high magnetic permeability. Specifically, Mn—Mg—Zn ferrite, Mn—Zn ferrite, Ni—Zn ferrite, hexagonal ferrite and the like are suitable as the magnetic material used here. Further, in the formation of the magnetic sheet 11, a paste in which magnetic powder such as ferrite described above and a resin binder are mixed may be used. This resin binder is mainly composed of a thermoplastic resin, and if necessary, coupling agents such as silane, titanate and aluminum which improve the affinity between the magnetic powder and the resin, phthalic acid and sulfone which improve the fluidity of the resin. Acidic, phosphoric acid and epoxy plasticizers, stearic acid, stearates, fatty acid amides, waxes and other lubricants that increase the fluidity of the mixture, and hindered phenols to prevent oxidation of fillers, sulfur Those to which antioxidants such as those based on phosphorus and phosphorus are appropriately added are suitable.

  The adhesive layer 12 is for adhering the magnetic body module 10 to the main body of the non-contact type data carrier. Specifically, the adhesive layer 12 is composed of a double-sided tape using an acrylic, rubber, or silicon adhesive. Is done. In addition, the adhesive layer 12 is formed with a double-sided tape using an acrylic adhesive, in particular, a double-sided tape using a re-peeling (weakly adhesive) type acrylic adhesive, etc. You may comprise so that attachment or detachment is possible. The release paper 13 covering the surface of the adhesive layer 12 in a peelable manner protects the adhesive layer 12 until the magnetic body module 10 is adhered to the non-contact data carrier. For example, kraft paper, glassine paper, etc. Formed with.

  As shown in FIG. 2, the adhesive layer 12 and the release paper 13 may be provided on the other surface of the magnetic sheet 11. As described above, by providing the adhesive layers 12 on both surfaces of the magnetic sheet 11, adhesion to the non-contact type data carrier main body and non-contact type data constituted by the non-contact type data carrier main body and the magnetic body module 10 are provided. The carrier can be bonded to a predetermined installation surface.

  Next, the configuration of the magnetic module 20 will be described with reference to FIG.

  As shown in FIG. 3, the magnetic body module 20 includes a magnetic body sheet 11 and a resin sheet 21 that sandwiches the magnetic body sheet 11 and covers the periphery thereof.

  The resin sheet 21 is, for example, a so-called pouch film (product name) composed of a two-layer sheet in which a hot melt (resin-based glue that melts by heat) is applied to a base made of a polyethylene terephthalate (PET) material. It is the sheet | seat formed with this resin. By pouching the resin sheet 21, the magnetic sheet 11 is sandwiched between the resin sheets 21 and the periphery thereof is covered.

  Further, as shown in FIG. 4, the magnetic sheet 11 may be sandwiched, and an adhesive layer 12 may be laminated on one surface of the resin sheet 21 covering the periphery, and a release paper 13 may be laminated on the adhesive layer 12. . Thereby, the magnetic body module 20 can be bonded to the non-contact type data carrier body.

  Further, as shown in FIG. 5, the adhesive layer 12 and the release paper 13 may be provided on the other surface of the resin sheet 21. As described above, by providing the adhesive layers 12 on both surfaces of the resin sheet 21, adhesion to the non-contact type data carrier main body and non-contact type data carrier constituted by the non-contact type data carrier main body and the magnetic body module 20 are provided. Can be adhered to a predetermined installation surface.

  Next, the configuration of the magnetic module 30 will be described with reference to FIG.

  As shown in FIG. 6, the magnetic body module 30 includes a magnetic body sheet 11 and a resin sheet 31 that sandwiches and surrounds the magnetic body sheet 11.

  The resin sheet 31 is a sheet composed of, for example, a resin sheet such as PET, polyethylene terephthalate copolymer (PETG), polyvinyl chloride (PVC), and an adhesive (adhesive sheet) processed into a hot-mel double-sided tape. . By laminating (carding) the resin sheet 31, the magnetic sheet 11 is sandwiched between the resin sheets 31 and the periphery thereof is covered.

  Although not shown, an adhesive layer may be laminated on one surface of the resin sheet 31 and a release paper may be laminated on the adhesive layer, as in the magnetic module 20 shown in FIG. Thereby, the magnetic body module 30 can be bonded to the non-contact type data carrier body. Further, although not shown, an adhesive layer and release paper may be provided on both surfaces of the resin sheet 31 as in the magnetic module 20 shown in FIG. Thus, by providing an adhesive layer on both surfaces of the resin sheet 31, adhesion to the non-contact type data carrier main body and non-contact type data carrier composed of the non-contact type data carrier main body and the magnetic body module 30 are provided. Adhesion to a predetermined installation surface can be performed.

  Next, the configuration of the magnetic device 40 will be described with reference to FIG.

  The magnetic body device 40 includes a magnetic body module 10 in a state where the release paper 13 is peeled off from the magnetic body module 10 described above, and a housing body 41 that houses the magnetic body module 10 therein.

  The container 41 accommodates the magnetic module 10 in a liquid-tight manner. For example, polyphenylene sulfide (PPS), polysulfone (PSF), polyamide (PA), polyacetal (POM), polyether ether ketone (PEEK), etc. The so-called engineering plastics are used for forming.

  Here, an example of the molding process of the magnetic body device 40 will be described.

  First, the magnetic material sheet 11 is bonded to one surface of the plate-like lid portion 41 a constituting the container 41 via the adhesive layer 12. Subsequently, the lid 41a is arranged at a predetermined position of the mold that forms the housing main body 41b of the container 41 so that the side to which the magnetic body module 10 is bonded faces the inside of the mold. Subsequently, a resin for forming the housing body 41b is press-fitted into the mold, and the housing body 41 having the magnetic body module 10 therein and the lid portion 41a and the housing body 41b being integrated is formed. Further, the magnetic body module 10 is not inclined with respect to the housing body 41, but is horizontal with respect to the lid portion 41a and the housing body 41b, that is, for example, the upper surface of the lid portion 41a or the bottom surface of the housing body 41b and the surface thereof. It is preferable that the distance between the magnetic sheet 11 and the surface of the magnetic sheet 11 is constant in all regions.

  Although not shown, an adhesive layer may be provided on one or both surfaces of the magnetic device 40, and a release paper may be laminated on the adhesive layer. Thereby, for example, a non-contact type data carrier body and a non-contact type data carrier device, which will be described later, can be bonded to the magnetic device 40. Furthermore, by providing an adhesive layer on both surfaces of the magnetic device 40, a non-contact data carrier body and a non-contact data carrier device to be described later can be bonded, and the magnetic device 40 is attached to a metal surface. It can be attached in place.

  Here, the magnetic body device 40 having the magnetic body module 10 in the containing body 41 is shown. However, as described above with reference to FIGS. Also for the magnetic body modules 20 and 30, the magnetic body devices 50 and 60 in which the magnetic body modules 20 and 30 are housed in the housing body 41 can be configured. Here, in the case where the magnetic body modules 10, 20, and 30 have a configuration without the adhesive layer 12, for example, the magnetic body modules 10, 20, and 30 are integrated by thermocompression bonding to one surface of the lid portion 41 a. Thus, the magnetic modules 10, 20, and 30 that do not have the adhesive layer 12 can be accommodated in the accommodating body 41 by the same method as the molding process of the magnetic device 40 described above.

  In addition, the shaping | molding processing method which accommodates the magnetic body modules 10, 20, and 30 in the container 41 is not restricted to an above-described method, The liquid material modules 10, 20, and 30 are liquid-tight in the container 41. Any material that can be molded is acceptable. For example, the lid portion 41a and the housing body 41b are formed separately without integrating the lid portion 41a and the housing body 41b, and the lid portion 41a to which the magnetic sheet 11 is bonded is screwed to the housing body 41b. It may be fixed liquid-tightly.

  As described above, according to the magnetic body modules 10, 20, 30 and the magnetic body devices 40, 50, 60, a non-contact type data carrier body and a non-contact type data carrier device which will be described later can be bonded. Even in a non-contact type data carrier body or a non-contact type data carrier device of a type that does not correspond to the installation of the metal surface, the magnetic body modules 10, 20, 30 and the magnetic body devices 40, 50, 60 are bonded to each other. It can be attached to the surface and operated normally. As a result, there is no need to newly install a non-contact type data carrier body or non-contact type data carrier device of a type corresponding to the installation of the metal surface. Therefore, it is not necessary to manufacture a non-contact type data carrier body or a non-contact type data carrier device of a type corresponding to the above, and thus productivity can be improved.

  Next, regarding the configuration of the non-contact type data carrier body that can be installed and used on a metal surface by attaching the above-described magnetic body modules 10, 20, 30 and magnetic body devices 40, 50, 60, This will be described with reference to FIGS.

  10 to 12 are diagrams schematically showing cross sections of the non-contact data carrier bodies 100, 110, and 120. FIG. FIG. 13 is a diagram schematically showing a cross-section of the non-contact type data carrier inlet 200 accommodated in each of the non-contact type data carrier main bodies 100, 110, 120. FIG. 14 is a diagram schematically showing a cross section of the non-contact type data carrier device 300.

  As shown in FIG. 10, the non-contact type data carrier main body 100 includes a non-contact type data carrier inlet 200 and one surface of the non-contact type data carrier inlet 200 with an adhesive layer 102 provided on one surface. A sheet member 101 that adheres and covers the non-contact type data carrier inlet 200, an adhesive layer 104 provided on the other side of the non-contact type data carrier inlet 200, and provided on the other side of the non-contact type data carrier inlet 200 The adhesive layer 104 and the edge portion of the adhesive layer 102 of the sheet member and the release paper 103 that is detachably bonded are configured.

  The sheet member 101 is made of, for example, resin such as YUPO (synthetic paper using polypropylene resin as a main raw material), crisper (white, opaque polyester-based synthetic paper), PET, and the like, and is formed by label processing.

  As shown in FIG. 11, the non-contact type data carrier main body 110 includes a non-contact type data carrier inlet 200 and a resin sheet 111 that sandwiches the non-contact type data carrier inlet 200 and covers the periphery thereof. The resin sheet 111 is formed of, for example, a resin such as a so-called pouch film (product name) formed of a two-layer sheet in which a hot melt (resin-based glue that melts by heat) is applied to a base made of a PET material in the form of a sheet. Sheet. By pouching the resin sheet 111, the non-contact data carrier inlet 200 is sandwiched between the resin sheets 111 and the periphery thereof is covered.

  As shown in FIG. 12, the non-contact type data carrier main body 120 includes a non-contact type data carrier inlet 200 and a resin sheet 121 that sandwiches the non-contact type data carrier inlet 200 and covers the periphery thereof. The resin sheet 121 is a sheet made of, for example, a resin sheet such as PET, PETG, PVC, or polypropylene (PP) and an adhesive (adhesive sheet) obtained by processing hot melt into a double-sided tape. By laminating (carding) the resin sheet 121, the non-contact type data carrier inlet 200 is sandwiched between the resin sheets 121 and the periphery thereof is covered.

  Note that the configuration of the non-contact type data carrier body is not limited to these, and may be a commonly used configuration of a known non-contact type data carrier body.

  Here, the configuration of the non-contact type data carrier inlet 200 will be described.

  As shown in FIG. 13, the non-contact type data carrier inlet 200 includes a base film 201, an antenna coil 202 formed on the base film 201, and an IC chip 203 mounted on the base film 201. It is mainly prepared for.

  The base film 201 is a base material having electrical insulating properties, and is made of, for example, PET (polyethylene terephthalate). In addition to this, for example, phenol resin, urea resin, melamine resin, polytetrafluoro It can also be composed of ethylene, polyethylene, polypropylene, polystyrene, polyethersulfone, polyphenylene sulfide, PBT, polyarylate, silicon resin, diallyl phthalate, polyimide, and the like.

  The antenna coil 202 is formed by rotating around one surface of the base film 201 a plurality of times. One end of the antenna coil 202 is connected to one of the connection bumps 204 of the IC chip 203. On the other hand, the other end of the antenna coil 202 is connected to one end of a jumper wire (inter-terminal connection pattern) 205 wired on the other surface of the base film 201, and the other end of the jumper wire 205 is The base film 201 is connected to a base end portion of a wiring pattern (not shown) wired on one surface of the base film 201. The end portion of this wiring pattern is connected to the other of the connection bumps 204 of the IC chip 203.

  The configuration of the non-contact type data carrier inlet is not limited to these, and may be a commonly used configuration of a known non-contact type data carrier inlet.

  Next, the configuration of the non-contact type data carrier device 300 will be described with reference to FIG.

  The non-contact type data carrier device 300 includes a non-contact type data carrier main body 110 formed by pouching as described above, and a container 250 that accommodates the non-contact type data carrier main body 110 therein.

  This non-contact type data carrier device 300 constitutes the non-contact type data carrier device 300 in which the non-contact type data carrier main body 110 is accommodated in the accommodating body 250 by the same method as the molding process of the magnetic body device 40 described above. be able to.

  In addition, here, the non-contact type data carrier device 300 having the non-contact type data carrier body 110 in the container 250 is shown. As for the contact type data carrier main bodies 100 and 120, a non-contact type data carrier device in which the non-contact type data carrier main bodies 100 and 120 are accommodated in the container 250 can be configured.

  Next, the non-contact type data carrier main bodies 100, 110, 120 and the non-contact type data carrier device 300 are stacked on the magnetic body modules 10, 20, 30 and the magnetic body devices 40, 50, 60, and attached to the metal surface. A configuration when used in the following will be described with reference to FIG. Here, the non-contact type data carrier 400 configured by the magnetic body device 50 and the non-contact type data carrier device 300 is illustrated, but the present invention is not limited to this configuration. Each non-contact type data carrier device can be arbitrarily combined.

  FIG. 15 is a diagram schematically showing a cross section of the non-contact data carrier 400 attached to the metal surface 350.

  The non-contact data carrier 400 includes a magnetic device 50 and a non-contact data carrier device 300 attached to the magnetic device 50 via an adhesive layer 401. The non-contact type data carrier 400 is attached to the metal surface 350 through the adhesive layer 402.

  In this way, the magnetic body device 50 and the non-contact type data carrier device 300 are configured separately, and are bonded to each other through, for example, an adhesive layer, so that the non-contact type data carrier device 300 is made of metal. Even if the type does not correspond to the installation of the surface, it is possible to attach the magnetic body device 50 to the metal surface and operate normally.

  Here, the distance (L) between the metal surface 350 and the surface of the magnetic sheet 11 of the magnetic device 50 facing the metal surface 350 (see FIG. 15), or the surface of the antenna coil 202 of the non-contact data carrier device 300 And the distance (M) (refer FIG. 15) with the magnetic material sheet 11 surface of the magnetic body apparatus 50 which opposes this antenna coil 202 surface affects the communication distance of the non-contact-type data carrier 400. FIG. Therefore, it is important to optimally design these distances, and knowledge about the set distances has been obtained.

  The distance (L) between the metal surface 350 and the magnetic sheet 11 surface of the magnetic device 50 facing the metal surface 350, the surface of the antenna coil 202 of the non-contact type data carrier device 300, and the antenna coil 202 described above. The optimum value (M) of the distance (M) between the magnetic material device 50 facing the surface and the surface of the magnetic material sheet 11 is the antenna size used in the non-contact type data carrier device 300 (vertical and horizontal antenna patterns on the outermost periphery of the antenna coil). Length).

First, a non-contact type antenna having an antenna coil whose effective area calculated by multiplying the vertical length of the antenna pattern on the outermost circumference of the antenna coil by the horizontal length based on the antenna size is in the range of 225 to 465 mm ^2. The case where the formula data carrier device 300 is used will be described.

  Examples of the antenna size having an effective area of the antenna coil in this range include 25 mm × 9 mm, 28 mm × 12 mm, 31 mm × 15 mm, and the like.

  When the non-contact type data carrier device 300 including the antenna coil having the effective area of the antenna coil is used, the allowable range of the resonance frequency is 13.3 to 14.3 MHz, and the antenna coil 202 of the non-contact type data carrier device 300 is used. The distance (M) between the surface and the surface of the magnetic sheet 11 of the magnetic device 50 facing the surface of the antenna coil 202 is preferably 1 mm or more. Here, the reason why the distance (M) is 1 mm or more is that when the distance (M) is shorter than 1 mm, a suitable communication distance with the reader / writer cannot be obtained. The communication distance is a distance between the reader / writer and the surface of the antenna coil 202 of the non-contact data carrier device 300 facing the reader / writer.

  A more preferable range of the distance (M) is 3 mm or more when the resonance frequency is 13.55 MHz. By setting the distance (M) within this more preferable range, a communication distance of 30 mm or more can be obtained. When the resonance frequency is 14 MHz, a communication distance of 1 mm or more and 30 mm or more can be obtained.

  Further, if this distance (M) is 1 mm or more, a suitable communication distance with the reader / writer can be obtained, but considering the practical size of the non-contact type data carrier 400, for example, about 7 mm is set as the upper limit value. It is preferable to do this. The upper limit value can be changed as appropriate according to the application.

  In the range of the distance (M) described above, the distance (L) between the metal surface 350 and the surface of the magnetic material sheet 11 of the magnetic device 50 facing the metal surface 350 is preferably 0 mm or more. Here, the distance (L) of 0 mm is when the magnetic sheet 11 is directly installed on the metal surface 350. If the distance (L) is 0 mm or more, a suitable communication distance with the reader / writer can be obtained. Although the influence of the distance (L) on the communication distance is small, the non-contact data carrier 400 is practically used. In consideration of the size, for example, the upper limit is preferably about 5 mm. The upper limit value can be changed as appropriate according to the application.

Next, based on the antenna size, the antenna coil effective area calculated by multiplying the vertical length of the outermost antenna pattern of the antenna coil by the horizontal length has an antenna coil in the range of 1600 to 2500 mm ^2. A case where the contact data carrier device 300 is used will be described.

  Examples of the antenna size having an effective area of the antenna coil in this range include 40 mm × 40 mm, 45 mm × 45 mm, and 50 mm × 50 mm.

  When the non-contact type data carrier device 300 including the antenna coil having the effective area of the antenna coil is used, the allowable range of the resonance frequency is 12.8 to 14.5 MHz, and the antenna coil 202 of the non-contact type data carrier device 300 is used. The distance (M) between the surface and the magnetic sheet 11 surface of the magnetic device 50 facing the antenna coil 202 surface is preferably 1 mm or more. Here, the reason why the distance (M) is 1 mm or more is that when the distance (M) is shorter than 1 mm, a suitable communication distance with the reader / writer cannot be obtained.

  Moreover, if this distance (M) is 1 mm or more, by adjusting the distance (L) between a metal surface 350 described later and the surface of the magnetic sheet 11 of the magnetic device 50 facing the metal surface 350. A communication distance of 60 mm or more can be obtained. The communication distance is easily affected by the distance (M) and the distance (L) described later, but it is preferable to set the upper limit value of the distance (M) in a range where the communication distance is 60 mm or more.

  In the range of the distance (M), a predetermined communication distance can be obtained even if the distance (L) between the metal surface 350 and the surface of the magnetic sheet 11 of the magnetic device 50 facing the metal surface 350 is 0 mm. However, in order to obtain a suitable communication distance, it is preferably 3 mm or more. Further, the communication distance is easily affected by the distance (L), and varies depending on the distance (M). However, it is preferable to set the upper limit value of the distance (L) in a range where the communication distance is 60 mm or more. .

  Next, the distance (L) between the metal surface 350 and the surface of the magnetic sheet 11 of the magnetic device 50 facing the metal surface 350, the surface of the antenna coil 202 of the non-contact data carrier device 300, and the antenna coil 202 It will be described that it is preferable to set the distance (M) between the magnetic body device 50 facing the surface and the magnetic sheet 11 within the above range.

(Example)
On the metal plate, a first spacer portion whose thickness can be changed by adjusting the number of laminated plate-like spacers is installed. From the magnetic powder and the resin binder on the first spacer portion. A magnetic sheet having a thickness of 250 μm was installed. In addition, a second spacer portion whose thickness can be changed by adjusting the number of laminated plate-like spacers is installed on the magnetic sheet, and non-contact type data is provided on the second spacer portion. A carrier inlet was installed. The plate spacer is made of polypropylene (PP), and the thickness of one sheet is 1 mm. The non-contact type data carrier inlet used had an antenna size (vertical and horizontal lengths of the antenna pattern on the outermost periphery of the antenna coil) of 28 mm × 12 mm, 45 mm × 45 mm, and a resonance frequency of 13.55 MHz. .

  By adjusting the number of laminated plate spacers, the thickness of the first spacer portion is adjusted, the distance (L) between the metal surface and the magnetic sheet surface facing this metal surface is changed, Adjust the thickness of the spacer part 2 and change the distance (M) between the antenna coil surface of the non-contact data carrier inlet and the magnetic sheet surface facing this antenna coil surface, and measure the communication distance. did. Here, the communication distance was measured by changing the position of the reader / writer (manufactured by Welcat; RCT-200-01, output 500 mW) at the antenna coil surface of the non-contact type data carrier inlet and the upper position facing it. . The communication distance here is the distance between the reader / writer and the antenna coil surface of the non-contact data carrier inlet facing it.

  FIG. 16 shows the measurement result of the communication distance when the non-contact type data carrier inlet having an antenna size of 28 mm × 12 mm is used.

  From the measurement results shown in FIG. 16, when the distance (M) between the antenna coil surface of the non-contact type data carrier inlet and the magnetic sheet surface facing the antenna coil surface is 1 mm or more, the metal surface and the metal A communication distance of at least about 15 mm was obtained regardless of the distance (L) from the surface of the magnetic sheet facing the surface. When the distance (M) was 3 mm or more, a communication distance of 30 mm or more was obtained regardless of the distance (L).

  Further, as described above, the communication distance is hardly affected by the distance (L), and the distance (L) is 0 mm or more in the range (1 mm or more) of the distance (M) where the predetermined communication distance is obtained. It was found that a suitable communication distance with the reader / writer can be obtained.

  FIG. 17 shows a measurement result of a communication distance when a non-contact data carrier inlet having an antenna size of 45 mm × 45 mm is used.

  From the measurement results shown in FIG. 17, the distance (L) is adjusted when the distance (M) between the antenna coil surface of the non-contact type data carrier inlet and the magnetic material sheet surface facing the antenna coil surface is 1 mm or more. As a result, it was found that a communication distance of 60 mm or more can be obtained. Moreover, in the above range of distance (M) (1 mm or more), it has been found that a predetermined communication distance can be obtained even if the distance (L) is 0 mm, but a suitable communication distance of 60 mm or more is obtained in the range of 3 mm or more. It was found that the distance (M) can be obtained over a wide range.

  Although the present invention has been specifically described with the embodiments, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the invention.

The figure which showed typically the cross section of the magnetic body module which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body module which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body module which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body module which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body module which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body module which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body apparatus which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body apparatus which concerns on embodiment of this invention. The figure which showed typically the cross section of the magnetic body apparatus which concerns on embodiment of this invention. The figure which showed typically the cross section of the non-contact-type data carrier main body. The figure which showed typically the cross section of the non-contact-type data carrier main body. The figure which showed typically the cross section of the non-contact-type data carrier main body. The figure which showed typically the cross section of the non-contact-type data carrier inlet accommodated in the non-contact-type data carrier main body. The figure which showed the cross section of the non-contact-type data carrier apparatus typically. The figure which showed typically the cross section of the non-contact-type data carrier attached to the metal surface. The figure which shows the measurement result of a communication distance when using the non-contact-type data carrier inlet whose antenna size is 28 mm x 12 mm. The figure which shows the measurement result of communication distance when using the non-contact-type data carrier inlet whose antenna size is 45 mm x 45 mm.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Magnetic body module, 11 ... Magnetic body sheet, 12 ... Adhesion layer, 13 ... Release paper.

Claims (11)

A non-contact type data carrier body comprising a substrate on which an antenna coil and an IC chip for transmitting and receiving information are arranged via an antenna coil on an electrically insulating substrate;
A magnetic module that is configured separately from the non-contact type data carrier main body and includes magnetic bodies stacked on one surface of the non-contact type data carrier main body. A non-contact data carrier. A non-contact type data carrier body comprising a substrate on which an antenna coil and an IC chip for transmitting and receiving information are arranged via an antenna coil on an electrically insulating substrate;
A container that contains a magnetic module that is configured separately from the non-contact type data carrier body and has a magnetic body stacked on one surface of the non-contact type data carrier body. A non-contact type data carrier comprising: a magnetic device comprising:   The antenna coil surface of the non-contact type data carrier body and the magnetic body surface of the magnetic body module facing the antenna coil surface are configured to have a predetermined distance. Non-contact data carrier.   4. The non-contact type according to claim 1, wherein the metal surface on which the magnetic module is installed and the magnetic surface of the magnetic module facing the metal surface are configured to have a predetermined distance. 5. Contact data carrier.   3. The antenna coil surface of the non-contact type data carrier main body and the magnetic body surface of the magnetic body device facing the antenna coil surface are configured to have a predetermined distance. Non-contact data carrier.   6. The non-conducting device according to claim 2, wherein the metal surface on which the magnetic device is installed and the magnetic surface of the magnetic device facing the metal surface are at a predetermined distance. Contact data carrier. A magnetic module used for the non-contact data carrier according to any one of claims 1 to 6,
A magnetic body module comprising a magnetic body. A magnetic module used for the non-contact data carrier according to any one of claims 1 to 6,
A magnetic sheet,
A magnetic module, comprising: an adhesive layer formed on one surface or both surfaces of the magnetic sheet. A magnetic module used for the non-contact data carrier according to any one of claims 1 to 6,
A magnetic sheet;
And a resin sheet covering the periphery of the magnetic sheet with the magnetic sheet interposed therebetween.   The magnetic body module according to claim 9, further comprising an adhesive layer on one surface or both surfaces of the resin sheet. A magnetic device for use in a non-contact data carrier according to any one of claims 2, 5 and 6,
The magnetic body module according to any one of claims 7 to 10,
A magnetic body device comprising: a housing body for housing the magnetic body module therein.

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