JP6614533B2 - Non-contact type data transmitter / receiver and method of using the same - Google Patents

Description

  The present invention relates to a non-contact type data receiving / transmitting body capable of receiving information from the outside using radio waves as a medium, such as an information recording medium for RFID (Radio Frequency IDentification), and transmitting information to the outside. Regarding usage.

Communication devices operating in an electromagnetic field such as RFID are easily affected by moisture and metal, and may not be able to communicate at all on a metal surface.
In order to avoid the influence of metal, an RFID having a ground and a three-dimensional structure is known.

  For example, the first base material and the second base material stacked via the adhesive layer, the antenna and the IC chip provided on the second base material, and a part of the portion of the second base material provided with the antenna However, there is known a non-contact type data transmitter / receiver that is folded on the first substrate, unfolded on the second substrate, and separated from the first substrate. (For example, refer to Patent Document 1).

  Further, the RFID includes a space forming portion having an arrangement portion arranged so that the long side thereof is parallel to the edge portion in the width direction of the seal, and the space forming portion is parallel to the edge portion in the width direction of the seal. There is known an RFID tag in which a plurality of broken lines are formed, and the interval between the RFID antenna and the adherend can be adjusted by the number of times the bent lines are bent (for example, see Patent Document 2).

  The label substrate includes a label substrate to which the RFID is attached and a mount temporarily attached to the back surface of the label substrate. The label substrate is folded back so that the surface of the first region is opposed to the mount and the back surface of the first region is relatively The second region, and a third region having an adhesive on the back surface, and the RFID is interposed between the first region and the second region, and the first region and the second region The third region is attached to the adherend in such a state that the end portion of the first region which is attached to either one is brought into contact with the surface of the adherend and a chevron is formed by the first region and the second region. There is known an RFID label that can be attached and held in a state where the RFID attached to either one of the first region and the second region is separated from the adherend (see, for example, Patent Document 3).

Japanese Patent No. 4916841 JP 2009-193262 A Japanese Patent No. 4799243

In order to reduce the influence of metal, it is necessary to separate the RFID antenna from the adherend made of metal.
In the above prior art, since the direction of the electric field of the antenna is parallel to one surface (attachment surface) of the adherend, it is necessary to greatly separate the antenna from the adherend, and the RFID tag (RFID label) thickness (high ) Sometimes increased.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a non-contact type data receiving / transmitting body capable of communicating without greatly separating one surface of an adherend from an antenna and a method of using the same. To do.

  The non-contact type data receiving / transmitting body of the present invention is a non-contact type data receiving / transmitting body attached to one surface of an adherend made of metal, and extends in opposite directions with the IC chip as a base end. A first conductive part serving as a ground and a second conductive part serving as an antenna, and the first conductive part has a pasting structure that can be pasted so as to overlap the adherend, The one conductive part is arranged on one surface of the adherend so as to be electrically coupled to the adherend, the second conductive part is separated from the adherend, and a longitudinal direction thereof is one surface of the adherend. It is arranged so that it may extend in the direction away from.

  In the non-contact type data transmitting / receiving body of the present invention, the second conductive portion may be folded along the longitudinal direction thereof.

  The method of using the non-contact type data receiving / transmitting body of the present invention is a method of using the non-contact type data receiving / transmitting body of the present invention, wherein the first structure is formed on one surface of an adherend made of metal by the pasting structure. The conductive portion is affixed so as to overlap the surface, the first conductive portion is disposed on one surface of the adherend so as to be electrically coupled to the adherend, and the second conductive portion is disposed on the adherend. It is separated from a kimono and it distribute | arranges so that the longitudinal direction may extend in the direction spaced apart with respect to the one surface of the said adherend.

  According to the present invention, since the electric field direction of the second conductive portion serving as the antenna is different from that of the one surface of the adherend, the communication of the non-contact type data receiving / transmitting body is performed without greatly separating the one surface of the adherend and the second conductive portion. Is possible.

It is a schematic plan view which shows the non-contact type data transmission / reception body which concerns on embodiment of this invention. It is sectional drawing which follows the AA line of FIG. 1, and is a figure which shows an example of a non-contact-type data receiving / transmitting body. It is sectional drawing which follows the AA line of FIG. 1, and is a figure which shows the other example of a non-contact-type data receiving / transmitting body. It is a schematic perspective view which shows an example of the usage method of the non-contact-type data transmission / reception body which concerns on embodiment of this invention. It is a schematic sectional drawing which shows an example of the usage method of the non-contact-type data transmission / reception body which concerns on embodiment of this invention. It is a schematic perspective view which shows the other example of the usage method of the non-contact-type data transmission / reception body which concerns on embodiment of this invention. It is a schematic sectional drawing which shows the other example of the usage method of the non-contact-type data transmission / reception body which concerns on embodiment of this invention.

Embodiments of the contactless data receiving / transmitting body and the method of using the same according to the present invention will be described.
Note that this embodiment is specifically described in order to better understand the gist of the invention, and does not limit the present invention unless otherwise specified.

[Non-contact data receiving / transmitting body and method of use thereof]
FIG. 1 is a schematic plan view showing a contactless data receiving / transmitting body according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 and is a diagram illustrating an example of a non-contact type data receiving / transmitting body. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1 and is a view showing another example of a non-contact type data receiving / transmitting body.
As shown in FIG. 1, the non-contact type data receiving / transmitting body 10 of the present embodiment includes a base material 21 having a rectangular shape in plan view, an IC chip 31 provided on one surface 21a of the base material 21, and an IC chip. A first conductive portion 41 serving as a ground and a second conductive portion 42 serving as an antenna extending in opposite directions with 31 as a base end.
The contactless data receiving / transmitting body 10 of the present embodiment is used by being attached to one surface of an adherend made of metal.

  The first conductive portion 41 and the second conductive portion 42 are a pair of conductive portions that face each other with the IC chip 31 as a center, and that have feeding points (portions that connect to the IC chip 31) 41a and 42a on the opposite sides. is there. In the present embodiment, the first conductive portion 41 and the second conductive portion 42 have a bow tie shape extending in the longitudinal direction of the base material 21.

  In the present embodiment, the case where the first conductive portion 41 and the second conductive portion 42 have a line-symmetric shape with respect to the center line passing through the IC chip 31 is exemplified, but the present invention is not limited to this. In the present invention, the first conductive portion and the second conductive portion may have an asymmetric shape.

The length of the first conductive portion 41 serving as the ground is not particularly limited, and is appropriately adjusted according to the characteristics of the IC chip 31 and the length of the second conductive portion 42 serving as the antenna.
The shape of the 1st electroconductive part 41 is not limited to the shape shown in FIG. 1, It adjusts suitably according to the shape of the one surface (attachment surface) of a to-be-adhered body.

The length of the second conductive portion 42 serving as an antenna is 1/2 of the frequency (300 MHz to 30 GHz) of the ultra-high frequency band <UHF> or microwave band that can be used for a non-contact IC module such as a non-contact IC card. The length corresponds to the wavelength.
The shape of the second conductive portion 42 is not limited to the shape shown in FIG. 1, and may be a meander shape.

  The first conductive part 41 and the second conductive part 42 branch from each other and are electrically connected by an inductance part 43 provided so as to straddle the feeding points 41a and 42a.

The 1st electroconductive part 41 has the sticking structure which can be stuck so that it may overlap with the surface of the adherend which sticks the non-contact-type data transmission / reception body 10 on the surface.
As such a pasting structure, for example, as shown in FIG. 2, there is an adhesive layer 51 provided on a surface (upper surface) 41 b opposite to the surface in contact with the base material 21 in the first conductive portion 41. Moreover, as a sticking structure, for example, as shown in FIG. 3, an adhesive layer provided on a surface (the other surface of the base material 21) 21 b opposite to the surface in contact with the first conductive portion 41 of the base material 21. 52.

  Note that the adhesive layer 51 is not necessarily provided on the upper surface 41 b of the first conductive portion 41. An adhesive layer 51 is provided so that the first conductive portion 41 overlaps with one surface of the adherend, and the first conductive portion 41 is disposed on one surface of the adherend so as to be electrically coupled to the adherend. It only has to be done. For example, the adhesive layer 51 may be provided around the first conductive portion 41 on the one surface 21 a of the base material 21.

  It is preferable that the adhesive layer 52 is provided in a portion facing the first conductive portion 41 on the other surface 21 b of the base material 21. In addition, the adhesive layer 52 may be provided in the vicinity of a portion facing the first conductive portion 41 on the other surface 21 b of the base material 21.

By such adhesive layers 52 and 53, the 1st electroconductive part 41 is affixed so that it may overlap with one surface of an adherend, and it electrically couple | bonds with one surface of an adherend. Here, the first conductive portion 41 and the adherend are electrically coupled means that the first conductive portion 41 and the adherend are electrostatically coupled, or the first conductive portion 41 and the adherend are directly coupled. say.
Further, the first conductive portion 41 is affixed to one surface of the adherend, while the second conductive portion 42 is separated from the adherend and its longitudinal direction extends in a direction away from the one surface of the adherend. Arranged.

  The non-contact type data transmitting / receiving body 10 includes a first region 61 including the first conductive portion 41 and a second region including a part of the IC chip 31 and the second conductive portion 42 along the longitudinal direction of the base material 21. 62, a third region 63 including a part of the second conductive part 42, and a fourth region 64 including a part of the second conductive part 42. The first region 61, the second region 62, the third region 63, and the fourth region 64 are connected in this order.

  The non-contact type data transmitting / receiving body 10 divides the first region 61 and the second region 62 along the direction perpendicular to the longitudinal direction of the base material 21, and the second region 62 and the third region 63. The fold line 72 and the fold line 73 that divides the third region 63 and the fourth region 64 can be mountain-folded or valley-folded in a direction perpendicular to the longitudinal direction.

  By providing such folding lines 71, 72, 73 and making them fold or valley fold, the second conductive portion 42 can be folded along the longitudinal direction thereof (see FIGS. 4 and 6). . Further, by adjusting the distance between the first area 61 and the second area 62, the distance between the second area 62 and the third area 63, and the distance between the third area 63 and the fourth area 64, The distance at which the second conductive portion 42 is separated from the one surface can be adjusted.

  In addition, the form which folds the non-contact-type data transmission / reception body 10 is not limited to said form, The number of the area | regions including the 2nd electroconductive part 42 is according to the length etc. of the 2nd electroconductive part 42 (antenna). Are adjusted accordingly. For example, the non-contact type data transmitting / receiving body 10 includes a first region including the first conductive part 41 and a second part including the IC chip 31 and a part of the second conductive part 42 along the longitudinal direction of the base material 21. A region and a third region including a part of the second conductive portion 42 may be included. Further, the non-contact type data transmitting / receiving body 10 includes a first region including the first conductive part 41 and a second part including the IC chip 31 and a part of the second conductive part 42 along the longitudinal direction of the base material 21. A region, a third region including a part of the second conductive part, a fourth region including a part of the second conductive part, and a fifth region including a part of the second conductive part. You may do it.

  The base material 21 is not particularly limited, and examples thereof include a base material made of various resins, a base material made of paper such as fine paper, thin paper, glassine paper, and sulfuric acid paper.

  The IC chip 31 is not particularly limited as long as it can write and read information in a non-contact state via the second conductive portion 42. Any IC chip 31 can be used as long as it can be applied to RFID media such as a non-contact type IC tag, a non-contact type IC label, or a non-contact type IC card.

  The material constituting the first conductive part 41 and the second conductive part 42 is formed by, for example, a known polymer type conductive ink, conductive ink such as a silver ink composition, metal foil, electroplating or electrostatic plating. Examples thereof include metal thin films, metal thin films formed by various thin film forming methods such as metal vapor deposition, and metal plates.

The adhesive layers 51 and 52 may be appropriately selected from those known in the field of adhesive labels, and are not particularly limited.
The pressure-sensitive adhesive layers 51 and 52 can be formed by applying a pressure-sensitive adhesive or a pressure-sensitive adhesive-containing composition containing a pressure-sensitive adhesive to a target location and drying it as necessary.

Next, a method of using the non-contact type data receiving / transmitting body 10 of the present embodiment will be described.
As shown in FIG. 2, a method of using the non-contact type data receiving / transmitting body 10 in which the adhesive layer 51 is provided on the upper surface 41 b of the first conductive portion 41 will be described.
First, as shown in FIG. 4, with reference to the case where the first conductive portion 41 and the second conductive portion 42 are on the front side, the folding line 71 is folded in a mountain, the folding line 72 is folded in a valley, and the folding line 73 is folded in a mountain.
Next, in the first region 61 of the non-contact type data receiving / transmitting body 10, one surface 21a of the base material 21 is disposed so as to face one surface (upper surface) 100a of the adherend 100 made of metal. Then, as shown in FIGS. 4 and 5, the first conductive portion 41 is pasted on the surface 100 a of the adherend 100 with the adhesive layer 51 so as to overlap the surface. Thus, the first conductive portion 41 is disposed on the surface 100a side of the adherend 100, and the first conductive portion 41 is disposed on the surface 100a of the adherend 100 so as to be electrically coupled to the adherend 100. To do.

Next, by adjusting the interval between the first region 61 and the second region 62, the interval between the second region 62 and the third region 63, and the interval between the third region 63 and the fourth region 64, the second conductive The part 42 is separated from the adherend 100. That is, as shown in FIG. 4, the first region 61 and the second region 62 are arranged so as to be separated from each other without contacting (overlapping). At this time, the IC chip 31 is sufficiently separated from the first region 61 attached to the adherend 100. Similarly, the second region 62 and the third region 63 are arranged so as to be separated from each other without contacting (overlapping), and the third region 63 and the fourth region 64 are separated from each other without contacting (overlapping). To arrange.
Thereby, the 2nd electroconductive part 42 is spaced apart from the to-be-adhered object 100, and it distribute | arranges so that the longitudinal direction may extend in the direction spaced apart with respect to the one surface 100a of the to-be-adhered object 100. FIG.

Moreover, as shown in FIG. 3, the usage method of the non-contact-type data transmission / reception body 10 by which the adhesion layer 52 was provided in the other surface 21b of the base material 21 is demonstrated.
First, as shown in FIG. 6, with reference to the case where the first conductive portion 41 and the second conductive portion 42 are on the front side, the folding line 71 is valley-folded, the folding line 72 is mountain-folded, and the folding line 73 is valley-folded.
Next, in the first region 61 of the non-contact type data receiving / transmitting body 10, the other surface 21 b of the base material 21 is disposed to face the one surface 100 a of the adherend 100 made of metal. Then, as shown in FIGS. 6 and 7, the first conductive portion 41 is pasted on one surface 100 a of the adherend 100 by the adhesive layer 52 so as to overlap the surface. Accordingly, the first conductive portion 41 is disposed on the opposite side of the surface 100a of the adherend 100, and the first conductive portion 41 is electrically coupled to the adherend 100 on the surface 100a of the adherend 100. Arrange as follows.

Next, by adjusting the interval between the first region 61 and the second region 62, the interval between the second region 62 and the third region 63, and the interval between the third region 63 and the fourth region 64, the second conductive The part 42 is separated from the adherend 100. That is, as shown in FIG. 6, the first region 61 and the second region 62 are arranged so as to be separated from each other without contacting (overlapping). At this time, the IC chip 31 is sufficiently separated from the first region 61 attached to the adherend 100. Similarly, the second region 62 and the third region 63 are arranged so as to be separated from each other without contacting (overlapping), and the third region 63 and the fourth region 64 are separated from each other without contacting (overlapping). To arrange.
Thereby, the 2nd electroconductive part 42 is spaced apart from the to-be-adhered object 100, and it distribute | arranges so that the longitudinal direction may extend in the direction spaced apart with respect to the one surface 100a of the to-be-adhered object 100. FIG.

The distance at which the second conductive portion 42 is separated from the one surface 100 a of the adherend 100 is appropriately adjusted according to the communication distance required for the non-contact type data receiving / transmitting body 10. However, in order to reduce the overall thickness of the non-contact type data receiving / transmitting body 10 (height from the one surface 100a of the adherend 100) as much as possible, a separation distance (adherend that can achieve a desired communication distance) It is preferable that the second conductive portion 42 be separated from the one surface 100a by a distance of 100.
The separation distance of the second conductive portion 42 from the one surface 100a of the adherend 100 is the distance of the end in the longitudinal direction of the second conductive portion 42 relative to the one surface 100a of the adherend 100.

  In the present embodiment, the case where the first region 61 is pasted on the one surface 100a of the adherend 100 after the non-contact type data receiving / transmitting body 10 is bent is illustrated, but the present invention is not limited to this. In the present invention, after attaching the first region 61 to the one surface 100a of the adherend 100, the non-contact type data receiving / transmitting body 10 may be bent as described above.

  According to the non-contact type data transmitting / receiving body 10 of the present embodiment, the non-contact type data receiving / transmitting body 10 is arranged so that the electric field direction of the second conductive portion 42 serving as the antenna differs from the one surface 100a of the adherend 100. Therefore, communication of the non-contact type data receiving / transmitting body 10 can be performed without greatly separating the one surface 100a of the adherend 100 from the second conductive portion 42.

  Further, according to the non-contact type data receiving / transmitting body 10 of the present embodiment, the second conductive portion 42 is folded along the longitudinal direction thereof, so that the thickness (high) of the entire non-contact type data receiving / transmitting body 10 is increased. The surface 100 of the adherend 100 and the second conductive portion 42 can be separated by a distance that allows the non-contact type data receiving / transmitting body 10 to communicate with each other.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further more concretely, this invention is not limited to a following example.

[Example 1]
As shown in FIG. 1, a non-contact type data transmitter / receiver 10 having a bow tie antenna composed of a first conductive part 41 and a second conductive part 42 and an IC chip 31 electrically connected to the bow tie antenna is produced. did. Further, in this non-contact type data receiving / transmitting body 10, as shown in FIG. 2, an adhesive layer 51 is provided on the upper surface 41 b of the first conductive portion 41.
As the IC chip 31, a Monza-4 chip manufactured by Impinj was used.
The length of the bow tie antenna in the longitudinal direction was 80 mm.
As shown in FIG. 4, the non-contact type data receiving / transmitting body 10 is formed by folding the folding line 71 and folding the folding line 72 on the basis of the case where the first conductive part 41 and the second conductive part 42 are on the front side. The fold line 73 was folded in a mountain, and in the first region 61, one surface 21a of the base material 21 was arranged to face one surface (upper surface) 100a of the adherend 100 made of metal. Then, as shown in FIGS. 4 and 5, the first conductive portion 41 was stuck on one surface 100 a of the adherend 100 with the adhesive layer 51 so as to overlap the surface.
In this state, the separation distance of the second conductive portion 42 with respect to the one surface 100a of the adherend 100 was changed, and the communication distance of the non-contact type data receiving / transmitting body 10 was measured with a Voyant tag tester.
The results are shown in Table 1.

[Example 2]
As shown in FIG. 1, a non-contact type data transmitter / receiver 10 having a bow tie antenna composed of a first conductive part 41 and a second conductive part 42 and an IC chip 31 electrically connected to the bow tie antenna is produced. did. Further, in the non-contact type data receiving / transmitting body 10, as shown in FIG. 3, an adhesive layer 52 is provided on the other surface 21 b of the base material 21.
As the IC chip 31, a Monza-4 chip manufactured by Impinj was used.
The length of the bow tie antenna in the longitudinal direction was 80 mm.
As shown in FIG. 6, the non-contact type data receiving / transmitting body 10 is folded on the fold line 71 and the fold line 72 in a mountain fold with reference to the case where the first conductive portion 41 and the second conductive portion 42 are on the front side. The folding line 73 was valley-folded, and in the first region 61, the other surface 21b of the base material 21 was arranged to face one surface (upper surface) 100a of the adherend 100 made of metal. Then, as shown in FIGS. 6 and 7, the first conductive portion 41 was stuck on one surface 100 a of the adherend 100 with the adhesive layer 52 so as to overlap the surface.
In this state, the separation distance of the second conductive portion 42 with respect to the one surface 100a of the adherend 100 was changed, and the communication distance of the non-contact type data receiving / transmitting body 10 was measured with a Voyant tag tester.
The results are shown in Table 1.

[Comparative example]
As a comparative example, the non-contact type data receiving / transmitting body 10 shown in FIG. 1 is arranged so as to face the adherend 100 made of metal, the one surface 100a of the adherend 100, the feeding point 41a of the first conductive portion 41, or the first A styrofoam spacer was installed between the non-contact type data receiving / transmitting body 10 and the adherend 100 so that the distance between the power supply point 42a of the two conductive portions 42 was a separation distance.
In this state, similarly to Example 1, the separation distance of the second conductive portion 42 with respect to the one surface 100a of the adherend 100 was changed, and the communication distance of the non-contact type data receiving / transmitting body 10 was measured with a VOANTIC tag tester.

  From the results in Table 1, the non-contact type data receiving / transmitting bodies of Examples 1 and 2 obtained substantially the same communication distance, and the communication distance was longer than that of the non-contact type data receiving / transmitting body of the comparative example. For example, when the communication distance of the non-contact type data receiving / transmitting body is set to 0.9 m, the non-contact type data receiving / transmitting body of the comparative example has a separation distance of the second conductive portion of 5.0 mm. In the non-contact type data receiving / transmitting bodies of Examples 1 and 2, the separation distance of the second conductive portion was 1.0 mm. That is, even if the non-contact type data receiving / transmitting body of Examples 1 and 2 is made smaller than the non-contact type data receiving / transmitting body of the comparative example, the communication distance equivalent to that of the non-contact type data receiving / transmitting body of the comparative example is obtained. It has been confirmed that this can be achieved.

DESCRIPTION OF SYMBOLS 10 ... Non-contact type data transmission / reception body, 21 ... Base material, 31 ... IC chip, 41 ... 1st electroconductive part, 42 ... 2nd electroconductive part, 51, 52 ... Adhesive layer, 61 ... 1st area, 62 ... 2nd area, 63 ... 3rd area, 64 ... 4th area, 71, 72, 73 ... fold line.

Claims (3)

A non-contact type data receiving / transmitting body to be attached to one surface of an adherend made of metal,
An IC chip, and a first conductive portion serving as a ground extending in opposite directions with the IC chip as a base end, and a second conductive portion serving as an antenna,
The first conductive portion has a pasting structure that can be pasted so as to overlap the adherend on the surface,
The first conductive part is disposed on one surface of the adherend so as to be electrically coupled to the adherend,
The non-contact type data transmitter / receiver characterized in that the second conductive portion is disposed so as to be separated from the adherend and the longitudinal direction thereof extends in a direction away from one surface of the adherend. .   The contactless data receiving / transmitting body according to claim 1, wherein the second conductive portion is folded along a longitudinal direction thereof. A method of using the contactless data receiving / transmitting body according to claim 1 or 2,
The first conductive part is pasted on one surface of the adherend made of metal by the pasting structure so as to overlap the surface, and the first conductive portion is electrically connected to the adherend on the one surface of the adherend. Arrange to bond to
A non-contact type data receiving / transmitting body characterized in that the second conductive portion is arranged so as to be separated from the adherend and the longitudinal direction thereof extends in a direction away from one surface of the adherend. how to use.

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