JP2007310488A - Non-contact data carrier device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly reliable non-contact data carrier device which is hardly damaged due to an action such as bending. <P>SOLUTION: This non-contact data carrier device 1 is provided with a plate-shaped non-contact data carrier 4 equipped with a hard substrate 2 having an antenna pattern and an IC chip 3 electrically connected to the antenna pattern and a mounting part 5 extended to the non-contact data carrier 4 so as to be mounted on the mounting object. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a non-contact data carrier apparatus that performs non-contact communication of information.

  In recent years, contactless data carriers using IC chips (for example, also referred to as IC tags, wireless tags, RFIDs, etc.) have been used as carriers for tag information of articles. The main components of the non-contact data carrier are an IC chip that holds data and an antenna connected to the IC chip.

  There is a non-contact data carrier in which an antenna is formed on a soft resin film such as polyimide or polyester, and an IC chip is connected to the antenna (for example, see Patent Document 1). In addition, a non-contact data carrier having a resin film provided with an antenna and an IC chip is integrated with a thermoplastic elastomer (for example, see Patent Document 2).

However, since the antenna is formed on, for example, a film-like soft resin base material, the antenna is easily deformed and damaged by an external force, the antenna is disconnected, the IC chip is cracked, and the connection portion between the IC chip and the antenna is Peeling or the like occurs, and the reliability of the obtained non-contact data carrier device is reduced.
JP 2004-139276 A Noto 3117539

  An object of the present invention is to provide a non-contact data carrier device which is made in order to cope with such a problem and is not easily damaged even by an operation such as bending, and which has excellent reliability.

A non-contact data carrier device according to an aspect of the present invention includes a plate-shaped non-contact data carrier including a hard substrate having an antenna pattern and an IC chip electrically connected to the antenna pattern, and the non-contact data And an attachment portion that extends to the carrier and is attached to an attachment object. In addition, the hard board | substrate said here is the amount of bending | deflection when a 1 kg load is applied on the centerline with respect to the two sides which supported the board | substrate movably, for example, and the both ends (two sides) of a 5 mm square size are supported. Means a substrate having a rigidity of 1 mm or less, preferably 0.5 mm or less. When the size of the substrate is smaller than 5 mm square, measurement is performed with a measurable size substrate having the same layer structure. Here, if the substrate has a width of 5 mm, the measurement can be performed with a length of 5 mm or more.
That is, a non-contact data carrier is used in which an antenna pattern is formed on a hard substrate that is difficult to bend against an external force, and an IC chip is connected to the antenna pattern. As a result, the contactless data carrier with excellent reliability is less likely to cause disconnection of the antenna pattern or peeling of the connection part between the IC chip and the antenna pattern even when external force such as bending is applied to the mounting target. An apparatus can be provided. In addition, by extending the attachment portion on the non-contact data carrier, when the user attaches the device to the object to be attached, the arrangement of the non-contact data carrier can be confirmed visually. The risk of damaging the components by providing through holes in the carrier is eliminated.

In the non-contact data carrier device according to the present invention, the attachment portion has a plate shape.
According to this, a user can attach easily to an attachment target object using attachment tools, such as a stapler, for example.

In the non-contact data carrier device according to the present invention, the material of the hard substrate is an epoxy resin, an epoxy resin with glass cloth, an aramid resin, a liquid crystal polymer, or a BT resin.
According to this, it is possible to obtain a hard substrate that is difficult to bend with respect to an external force.

The non-contact data carrier device according to the present invention is characterized in that the attachment portion has a through hole or a notch.
According to this, since a through-hole or a notch can also be provided in an attachment part, the freedom degree of selection of an attachment method increases.

In the non-contact data carrier device according to the present invention, the through hole or the notch has a hard member on a side wall thereof.
According to this, when attaching to an attachment target through a screw, for example through a screw, it is possible to prevent deformation and breakage of the attachment part by improving the strength of the through hole.

Moreover, the non-contact data carrier device of the present invention is characterized in that the non-contact data carrier and the mounting portion are connected via a soft member.
According to this, when the non-contact data carrier and the attachment portion are connected via the soft member, for example, when attached to an attachment object of a relatively soft material such as clothes or sheets, the bending stress during use is reduced. It can be alleviated and deformation and damage can be prevented.

In the non-contact data carrier device of the present invention, the soft member is made of a thermoplastic elastomer or rubber.
According to this, a soft member having a rubber hardness value of JIS A hardness of 95 or less, more preferably a hardness value of 90 or less can be obtained.

In the non-contact data carrier device of the present invention, the soft member includes a fiber.
According to this, the softness | flexibility and intensity | strength of a soft member can be improved. Moreover, if the attachment part is integrally formed of a soft member containing fibers, flexibility can be further increased.

In the non-contact data carrier device of the present invention, the outer size of the non-contact data carrier viewed from the direction orthogonal to the surface of the antenna pattern is 25 mm × 25 mm or less.
According to this, the user can wear the clothes to which the non-contact data carrier device is attached without feeling uncomfortable.

Moreover, the non-contact data carrier device of the present invention is characterized in that the non-contact data carrier is included in a soft member.
According to this, the non-contact data carrier can be protected from the external environment. Moreover, it can apply also to the attachment target comprised from a metal by making a soft member into predetermined thickness.

In the non-contact data carrier device of the present invention, the non-contact data carrier has a soft magnetic layer on the mounting surface side.
According to this, even when the attachment object is made of metal, the occurrence of overcurrent on the attachment object side during communication can be reduced, and the non-contact data carrier side and the reader / writer side (not shown) can be reduced. Good communication can be realized.

In the non-contact data carrier device of the present invention, the main surface of the non-contact data carrier is inclined at an angle of 10 to 90 ° with respect to the main surface of the mounting portion.
According to this, even when the attachment object is made of metal, generation of eddy current can be suppressed and good communication performance can be ensured.

  According to the present invention, it is possible to provide a non-contact data carrier device which is not easily damaged even by an operation such as bending and has excellent reliability.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view schematically showing a non-contact data carrier device according to a first embodiment of the present invention.

  As shown in FIG. 1, the non-contact data carrier device 1 includes a plate-like non-contact data including a hard substrate 2 having an antenna pattern and an IC chip 3 electrically connected to the antenna pattern (not shown). A carrier 4 and an attachment portion 5 extending to the non-contact data carrier 4 and attaching to an attachment object are provided.

  In the non-contact data carrier 4, for example, an antenna pattern in which a copper foil is patterned is provided on the hard substrate 2 in a spiral shape, and an IC chip 3 for data carrier is mounted by being connected to the antenna pattern.

  The hard substrate 2 may be a multilayer structure composed of a plurality of layers in which antenna patterns are provided in a plurality of wiring layers and these are connected in series by vias (interlayer connection conductors), or a structure composed of a single layer. The hard substrate 2 is made of a hard organic insulating material such as epoxy resin, epoxy resin with glass cloth, aramid resin, liquid crystal polymer, or BT resin, and the thickness may be 0.1 to 0.5 mm. it can. Instead of these organic insulating material plates, for example, inorganic materials such as ceramics may be used.

  The IC chip 3 is provided with a communication circuit unit and a memory unit as main internal components. The communication circuit unit is connected to the antenna pattern, receives a data read command signal from the outside through the antenna pattern, and mediates the output of data stored in the memory unit in response thereto.

  The non-contact data carrier 4 is fixed to the attachment portion 5 with an adhesive or the like, for example.

  The attachment portion 5 is a member for attachment to an attachment object, and extends from the non-contact data carrier 4. Although the shape is not particularly limited, it is preferably a plate shape so that it can be easily attached. Specifically, various shapes such as a square shape, a substantially square shape, a rectangular shape, a substantially rectangular shape, a circular shape, an oval shape, etc. The shape is illustrated. The size is not particularly limited as long as it can be attached to an attachment object with an attachment device such as a stapler device, a pin, a screw, an adhesive, or the like and does not impair the required strength. The material constituting the attachment portion 5 may be any hardness as long as it can be attached by the above-described attachment device, and is made of an organic insulating material that is softer than the material constituting the hard substrate 2, such as polyimide or polyester. The attachment portion 5 is obtained by injection molding these organic insulating materials or cutting a sheet-like material.

  In the non-contact data carrier device 1 of the present embodiment, the external size of the non-contact data carrier 4 viewed from the direction orthogonal to the pattern surface of the antenna pattern is 25 mm × 25 mm or less, for example, 5 mm × 5 mm. is there. Thereby, when this non-contact data carrier device 1 is attached to clothes, for example, a user can wear this clothes without a sense of incongruity. At this time, the outer shape of the non-contact data carrier 4 can be variously selected depending on the application, such as a square, a rectangle, a square whose corners are chamfered, and a circle. This is preferable. On the other hand, such a non-contact data carrier 4 is usually required to have an outer size of 2 mm × 2 mm or more because the communication distance becomes shorter as the antenna becomes smaller due to downsizing.

  When the attachment object is made of metal, a spacer made of an insulating resin having a thickness of 2 mm or more is provided between the attachment object and the non-contact data carrier 4. By adopting such a configuration, it is possible to reduce the generation of eddy currents and apply it to a metal attachment object.

  FIG. 2 shows a non-contact data carrier device 21 in which the thickness of the attachment portion 22 is smaller than that of the non-contact data carrier 4 with respect to the non-contact data carrier device 1 shown in FIG. The thickness of the attachment portion 22 can be appropriately determined according to the attachment method.

  FIG. 3 shows a non-contact data carrier device 31 in which a through hole 32 is provided in the mounting portion 22 with respect to the non-contact data carrier device 21 shown in FIG. According to this non-contact data carrier device 31, the through hole 32 is formed in the attachment portion 22, and an eyelet or the like is provided in the through hole 32 as necessary, and the attachment can be attached to the object to be attached with, for example, a screw or a string. it can. The shape and size of the through hole 32 may be any shape and size that can use a predetermined screw or the like, and the number of the through holes 32 is not particularly limited. In addition to the through hole 32, the attachment portion 22 may be formed with a notch 42 as shown in FIG. 4 as needed, and attached to the attachment object. FIG. 4 shows an example of the notch 42, which has a shape in which the open side of the notch 42 is narrowed to prevent dropping when it is hung on a button or a button hole. The material of the mounting portion 22 used in this way is preferably composed of fibers (cloth) or a member containing fibers.

  FIG. 5 shows a non-contact data carrier device 51 in which a hard member 52 is provided on the side wall of the through hole 32 of the mounting portion 22 with respect to the non-contact data carrier device 31 shown in FIG. Examples of the material constituting the hard member 52 include hard organic insulating materials such as epoxy resin, epoxy resin with glass cloth, aramid resin, liquid crystal polymer, and resin. According to the non-contact data carrier device 51, when the through hole 32 is attached to an attachment target through, for example, a screw, the strength of the through hole 32 can be improved to prevent the attachment portion 22 from being deformed or damaged. it can.

  As described above, according to the non-contact data carrier device 1, 21, 31, 41, 51 of the present embodiment, even when an operation such as bending is applied when the device is attached to an attachment target, Since the non-contact data carrier 4 is composed of the hard substrate 2, it is possible to provide a non-contact data carrier device that is unlikely to be deformed or damaged and that has excellent reliability. Further, by extending the attachment portions 5 and 22 from the non-contact data carrier 4, when the user attaches the device to the attachment object, the arrangement of the non-contact data carrier 4 can be visually confirmed. The risk of accidentally providing a through-hole in the non-contact data carrier 4 and damaging it is eliminated. Moreover, the through-hole 32 and the notch 42 can also be provided in the attachment parts 5 and 22, and the freedom degree of selection of an attachment method increases.

  Next, a non-contact data carrier device according to the second embodiment will be described with reference to FIG. FIG. 6 is a perspective view schematically showing a non-contact data carrier device according to the second embodiment. In the non-contact data carrier device 61 of the present embodiment, the non-contact data carrier 4 and the attachment portion 22 are connected via a soft member 62 to the non-contact data carrier device of the first embodiment described above. The point is different. In addition, the same code | symbol is attached | subjected to the component same as 1st Embodiment, and the description is simplified or abbreviate | omitted.

  As shown in FIG. 6, in the non-contact data carrier device 61, the non-contact data carrier 4 and the attachment portion 22 are connected via a soft member 62. The soft member 62 is fixed to the non-contact data carrier 4 and the attachment portion 22 with an adhesive or the like.

  The soft member 62 is made of, for example, a flexible resin such as a thermoplastic elastomer or rubber, and the hardness thereof has a rubber hardness value of JIS A hardness of 95 or less, more preferably 90 or less. Examples of the thermoplastic elastomer include styrene / butadiene / styrene block copolymer (SBS), epoxidized styrene elastomer (Epofriend), styrene / isoprene / styrene block copolymer (SIS), hydrogenated styrene block copolymer (hydrogenated SBC), Hydrogenated SBC compound (hydrogenated TPS), simple blend type olefin elastomer (non-crosslinked TPO), cross-linked elastomer (TPV), vinyl chloride elastomer (TPVC), chlorinated ethylene copolymer crosslinked alloy (Alcryn), chlorinated polyethylene Elastomer (CPE), syndiotactic 1,2-polybutadiene (Syn-1,2-BR), urethane elastomer (TPU), polyester elastomer (TPEE), polyamide elastomer Chromatography (TPAE), fluorine-based elastomer, and silicone-based elastomer (SILGRAFT) and the like. Examples of the rubber include known polymer materials such as natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, butyl rubber, and ethylene-propylene rubber. The soft member 62 can also contain fibers in order to increase flexibility and strength. The attachment portion 22 may be integrally formed of the material constituting the soft member 62.

  Further, the soft member 62 can be a print area for displaying information stored in the non-contact data carrier 4 on the main surface thereof. Laser printing is preferred in the sense of micro printing on a small area. For information display, a preprinted seal can be pasted on the main surface of the soft member 62.

  As described above, according to this non-contact data carrier device 61, by connecting the non-contact data carrier 4 and the attachment portion 22 via the soft member 62, for example, from a relatively soft material such as clothes and sheets. When the device 61 is attached to the attachment object, the bending stress applied to the device 61 during use can be relaxed, and deformation and breakage can be prevented. In addition, when the device 61 is attached to clothes, for example, it is attached along the clothes surface, so that the user can wear it without feeling uncomfortable. Therefore, it can also attach to the attachment target object which has a curved surface.

  Moreover, the form which connects the non-contact data carrier 4 and the attachment part 22 via such a soft member 62 is applicable similarly to the form shown in FIGS.

  Next, a non-contact data carrier device according to a third embodiment will be described with reference to FIG. FIG. 7 shows a non-contact data carrier device according to the third embodiment. In the non-contact data carrier device 71 of this embodiment, the non-contact data carrier 4 is included in the soft member 72. In addition, the same code | symbol is attached | subjected to the component same as 1st Embodiment, and the description is simplified or abbreviate | omitted.

  As shown in FIG. 7, in the non-contact data carrier device 71, the entire non-contact data carrier 4 is covered with a soft member 72. The thickness of the soft member 72 is preferably about 1 to 5 mm from the surface of the non-contact data carrier 4. The soft member 72 can be made of the same material as the soft member 62 described in the second embodiment. For example, the non-contact data carrier 4 is inserted into a predetermined mold of the soft member 72 and is integrally formed with the soft member 72 by injection molding using a synthetic resin or the like, and then fixed to the attachment portion 22 with an adhesive or the like.

  FIG. 8 shows a non-contact data carrier device 81 integrally formed with the non-contact data carrier 4 with a material constituting the soft member 72 with respect to the non-contact data carrier device 71 shown in FIG. In this case, the non-contact data carrier 4 is inserted into a predetermined mold of the non-contact data carrier device 81 and is integrally formed with the soft member 72 by injection molding using synthetic resin or the like. The attachment portion 82 may be provided with the above-described through hole and notch as necessary.

  According to the non-contact data carrier devices 71 and 81, the non-contact data carrier 4 can be protected from the external environment by enclosing the non-contact data carrier 4 with the soft member 72. Further, by setting the interval between the bottom surface of the non-contact data carrier 4 and the bottom surface of the soft member 72 to 1 to 5 mm, the bottom surface of the soft member 72 including the non-contact data carrier 4 is attached to the bottom surface of the soft member 72 via the attachment portions 22 and 82. Since the object to be attached comes into contact with the non-contact data carrier 4 and the object to be attached, the communication performance can be reduced even when the object to be attached is made of metal or the like.

  Moreover, the form which encloses such non-contact data carrier 4 with the soft member 72 is applicable similarly to the form shown in FIGS.

  Next, a non-contact data carrier device according to a fourth embodiment will be described with reference to FIG. FIG. 9 is a cross-sectional view schematically showing a non-contact data carrier device according to the fourth embodiment. In the non-contact data carrier device 91 of this embodiment, a soft magnetic layer 92 is provided on the mounting surface side of the non-contact data carrier 4. In addition, the same code | symbol is attached | subjected to the component same as 1st Embodiment, and the description is simplified or abbreviate | omitted.

  As shown in FIG. 9, the soft magnetic layer 92 is provided on the back surface side (attachment surface side) of the non-contact data carrier 4. The thickness of the soft magnetic layer 92 is, for example, in the range of 0.05 mm to 5 mm, preferably 0.1 mm to 0.5 mm. In addition, by providing a metal thin film layer on the back surface side (attachment surface side) of the soft magnetic layer 92 as necessary, a change in the resonance frequency of the antenna when attached to the metal surface can be reduced.

  According to this non-contact data carrier device 91, even when the attachment object is made of metal, the occurrence of overcurrent on the attachment object side during communication can be reduced, and the non-contact data carrier 4 side and the reader / writer side Good communication with (not shown) can be realized.

  Moreover, the form which provides the soft-magnetic-material layer 92 in the attachment surface side of such a non-contact data carrier 4 is applicable similarly also in the form shown in FIGS.

  Next, a non-contact data carrier device according to a fifth embodiment will be described with reference to FIG. FIG. 10 is a perspective view schematically showing a non-contact data carrier device according to the fifth embodiment. In the non-contact data carrier device 101 of the present embodiment, the main surface of the non-contact data carrier 4 is inclined with respect to the main surface of the mounting portion 22 with respect to the non-contact data carrier device of the first embodiment described above. Is different. In addition, the same code | symbol is attached | subjected to the component same as 1st Embodiment, and the description is simplified or abbreviate | omitted.

  As shown in FIG. 10, the bottom surface of the non-contact data carrier 4 is set to 10 ° <α <90 ° when the inclination angle is α with respect to the mounting surface (bottom surface) of the mounting portion 22.

  According to the non-contact data carrier device 101 of this embodiment, even when the attachment object is made of metal, the occurrence of overcurrent on the attachment object side during communication can be suppressed, and the non-contact data carrier 4 side And communication with the reader / writer (not shown) can be realized.

  Such a form in which the non-contact data carrier 4 is inclined with respect to the attachment portion 22 can be similarly applied to the embodiments shown in FIGS.

  The embodiments of the present invention have been specifically described above, but the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention.

1 is a perspective view schematically showing a non-contact data carrier device according to a first embodiment of the present invention. The perspective view which shows the modification of the non-contact data carrier apparatus shown in FIG. The perspective view which shows the modification of the non-contact data carrier apparatus shown in FIG. The perspective view which shows the modification of the non-contact data carrier apparatus shown in FIG. The perspective view which shows the modification of the non-contact data carrier apparatus shown in FIG. The perspective view which shows typically the non-contact data carrier apparatus which concerns on the 2nd Embodiment of this invention. The perspective view which shows typically the non-contact data carrier apparatus which concerns on the 3rd Embodiment of this invention. The perspective view which shows the modification of the non-contact data carrier apparatus shown in FIG. The perspective view which shows typically the non-contact data carrier apparatus which concerns on the 4th Embodiment of this invention. The perspective view which shows typically the non-contact data carrier apparatus which concerns on the 5th Embodiment of this invention.

Explanation of symbols

  1, 2, 31, 41, 51, 61, 71, 81, 91, 101 ... Non-contact data carrier device, 2 ... Hard substrate, 3 ... IC chip, 4 ... Non-contact data carrier, 5, 22, 82 ... Installation 32, through-hole, 42, notch, 52, hard member, 62, 72, soft member, 92, soft magnetic layer, α, tilt angle.

Claims (12)

A plate-like non-contact data carrier comprising a hard substrate having an antenna pattern and an IC chip electrically connected to the antenna pattern;
A non-contact data carrier device, characterized in that the non-contact data carrier device includes an attachment portion that extends to the non-contact data carrier and is attached to an attachment object.   The non-contact data carrier device according to claim 1, wherein the attachment portion has a plate shape.   3. The non-contact data carrier device according to claim 1, wherein the material of the hard substrate is epoxy resin, epoxy resin with glass cloth, aramid resin, liquid crystal polymer, or BT resin.   The non-contact data carrier device according to claim 1, wherein the attachment portion has a through hole or a notch.   The non-contact data carrier device according to claim 4, wherein the through hole or the notch has a hard member on a side wall thereof.   The non-contact data carrier device according to claim 1, wherein the non-contact data carrier and the attachment portion are connected via a soft member.   The non-contact data carrier device according to claim 6, wherein the soft member is made of a thermoplastic elastomer or rubber.   The non-contact data carrier device according to claim 6, wherein the soft member includes a fiber.   The contactless data carrier according to any one of claims 1 to 8, wherein an outer size of the contactless data carrier viewed from a direction orthogonal to the surface of the antenna pattern is 25 mm x 25 mm or less. apparatus.   The non-contact data carrier device according to claim 1, wherein the non-contact data carrier is included in a soft member.   11. The non-contact data carrier device according to claim 1, wherein the non-contact data carrier has a soft magnetic layer on an attachment surface side thereof.   12. The non-contact data according to claim 1, wherein a main surface of the non-contact data carrier is inclined at an angle of 10 to 90 ° with respect to a main surface of the attachment portion. Carrier device.

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