JP2015143912A - RFID inlet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an RFID inlet capable of including a heat radiation function in itself, storing various kinds of information on optional devices, such as a highly functional or multifunctional portable terminal and a battery and being manufactured at a low cost without separately winding a heat radiation sheet, etc., and impairing beauty as a product.SOLUTION: An RFID inlet, which includes an RFID antenna 6 having an antenna area 7 and residual coating area 9 formed by etching, and an IC chip 5 connected with the RFID antenna 6 and capable of storing information, allows data communication by radio. The antenna area 7 used as the RFID antenna 6 and the residual coating area 9 having a gap formed to the antenna area 7 are formed by etching a metal film 4, and the residual coating area 9 has a heat radiation function.

Description

    The present invention relates to an RFID inlet, and more particularly to an RFID inlet that applies RFID (Radio Frequency Identification) technology.

Conventionally, an RFID inlet includes a base film made of a PET (polyethylene terephthalate) film or any other film material, an RFID antenna provided on the base film, and an IC chip that can be connected to the RFID antenna and store information. And wireless data communication is possible.
In addition, since the RFID inlet has a large amount of data that can be stored, it is processed into a form such as a label or a tag and used for management of various systems and articles.

On the other hand, for example, lithium batteries and other batteries used for high-function or multi-function portable terminals are wound with a heat-dissipating sheet to dissipate heat generated by the use.
However, since this heat dissipation sheet is mainly composed of aluminum or other metal material, in the state where the label or tag by the RFID inlet is in direct contact with the heat dissipation sheet for the management of the portable terminal or the battery, There is a problem that the radio wave for wireless data communication is blocked by the heat dissipation sheet, and the RFID inlet cannot perform its wireless data communication function.

Therefore, in general, when an RFID inlet is attached to a battery, depending on the frequency of the radio wave used, for example, in the HF band (3 MHz to 30 MHz (preferably 13.56 MHz)), the battery and the RFID inlet In the UHF band (300 MHz to 3 GHz (preferably 860 to 960 MHz)), it is necessary to sandwich a spacer having a predetermined thickness.
However, such a battery having a structure in which a magnetic sheet or spacer is sandwiched with an RFID inlet can be stored in a limited space in the portable terminal because of the local thickness of the RFID inlet. In addition to being difficult, there is a problem that the beauty as a product is impaired.

Note that visible information is not displayed on the RFID inlet itself as a data carrier, and design or aesthetics with a predetermined design or the like is not given.
In other words, if necessary, another paper or film on which desired information has been printed in advance is laminated to the RFID inlet by using a method such as affixing the RFID inlet to an RFID label or RFID tag. Information that can be visually recognized by the user is displayed by being attached to or attached to.
However, if a label or tag made of another paper or film is mistakenly attached, there is a problem that this visible information is different from the data stored in the IC chip in the RFID inlet.

Furthermore, there is a problem that it is difficult to prevent counterfeiting and other fraudulent acts that intentionally make the visible information on the surface of the label or tag different from the data in the IC chip.
Of course, there is also a problem of labor and cost that a label or tag made of the other paper or film on which desired information is printed must be prepared in advance and attached to the RFID inlet.

Special table 2008-532223 gazette JP 2007-26844 A

    The present invention has been considered in view of the above problems, and an object of the present invention is to provide an RFID inlet that can be provided with a heat dissipation function.

    It is another object of the present invention to provide an RFID inlet that stores various types of information related to an arbitrary device such as a high-function or multi-function mobile terminal and a battery, and that does not require a separate heat dissipation sheet.

    It is another object of the present invention to provide an RFID inlet that can keep its thickness to a minimum even when stacked on an arbitrary device such as a high-function or multi-function portable terminal or a battery.

    Another object of the present invention is to provide an RFID inlet that does not impair the aesthetics of the product even if it is laminated on any device such as a high-function or multi-function portable terminal or a battery, and can be manufactured at low cost. And

    That is, the present invention focuses on forming an antenna region as an RFID antenna and a residual film region with a gap between the antenna region by etching, and includes a base film and the base film. An RFID inlet having an RFID antenna provided on the IC and an IC chip that can be connected to the RFID antenna and store information, and is capable of wireless data communication, wherein a metal film laminated on the base film is provided. Etching forms an antenna region as the RFID antenna and a residual film region with a gap between the antenna region and has a heat dissipation function by the residual film region. RFID inlet.

    The metal film may cover most of the area of the base film.

    The antenna region may be formed along the contour line of the metal coating.

    The antenna region can be formed on the outer peripheral side of the residual coating region.

    A heat dissipation function can be provided by the antenna region formed as the RFID antenna.

    The residual film region can be used as a free design region for forming an arbitrary design by the etching.

    The design can be related to the information stored in the IC chip.

    In the RFID inlet according to the present invention, an antenna region as an RFID antenna and a residual film region with a gap between the antenna region are formed by an etching process, and the residual film region is provided with a heat dissipation function. As a result, the RFID inlet itself laminated or attached to various devices such as high-function or multi-function mobile terminals and batteries can dissipate heat generated from various devices. Since it is not necessary to laminate, any device can be equipped at low cost without deteriorating the beauty.

It is a perspective view of the film-like laminated body 2 for manufacturing RFID inlet 1 by the 1st example of the present invention. FIG. 2 is a plan view of the RFID inlet 1. It is the III-III sectional view taken on the line of FIG. FIG. 2 is a schematic cross-sectional view showing a state where the RFID inlet 1 is attached so as to be wound around the battery 10. It is a top view of RFID inlet 20 by the 2nd example of the present invention. It is a top view of RFID inlet 30 by the 3rd example of the present invention. It is a top view of RFID inlet 40 by the 4th example of the present invention.

    The present invention forms an antenna region as an RFID antenna and a residual film region with a gap between the antenna region by etching the metal film laminated on the base film, and this residual film region Because it has a heat dissipation function, it has realized an RFID inlet that can retain heat dissipation performance by itself.

Next, the RFID inlet 1 according to the first embodiment of the present invention will be described with reference to FIGS.
1 is a perspective view of a film-like laminate 2 for manufacturing an RFID inlet 1, FIG. 2 is a plan view of the RFID inlet 1, and FIG. 3 is a sectional view taken along line III-III in FIG.
As shown in FIG. 1, the film-like laminate 2 has a base film 3 and a metal film 4 laminated on the upper layer of the base film 3. As shown in FIG. After the formation, the IC chip 5 is electrically connected to the metal film 4 (RFID antenna 6).

The base film 3 is composed of a PET film or any other film material having a size necessary for the RFID inlet 1.
The metal film 4 is made of, for example, copper, aluminum, silver, gold or any other metal material having electrical conductivity and thermal conductivity (heat dissipation).
The IC chip 5 is a device capable of storing various types of information depending on the field in which the RFID inlet 1 is used.

In particular, as shown in FIG. 2, the RFID inlet 1 includes an RFID antenna 6 provided on a base film 3 and the IC chip 5 connected to the RFID antenna 6. The data necessary for the IC chip 5 can be read and written (data communication) via the wireless LAN.
However, the specific configurations of the IC chip 5 and the RFID antenna 6 are appropriate according to the radio waves used.
In particular, a radio wave having a wavelength in the UHF band (for example, 860 to 960 MHz) has a maximum communication distance of about 5 to 10 m, and is expected to be applied in various fields.

The metal film 4 covers most of the area of the base film 3.
That is, the RFID inlet 1 is formed by etching the metal film 4 laminated on the base film 3, so that the antenna area 7 as the RFID antenna 6 located at the peripheral edge of the base film 3 is interposed between the antenna area 7 and the antenna area 7. A residual film region 9 located at the center of the base film 3 with a slight linear gap 8 is formed simultaneously (in the same etching step) on the same plane.

    The RFID antenna 6 has a loop antenna portion 6A and a dipole antenna portion 6B connected to the IC chip 5, and enables wireless data communication with a reader / writer (not shown).

    The antenna region 7 is on the outer peripheral side of the remaining coating region 9 in the RFID inlet 1 (base film 3), and is formed along the contour line of the metal coating 4.

    The residual film region 9 occupies a relatively larger area than the antenna region 7 formed as the RFID antenna 6 and dissipates heat generated from this device when wound around an arbitrary device (for example, a battery). It has a heat dissipation function.

The RFID inlet 1 having such a configuration has a heat radiation function by the remaining film region 9 as well as a general wireless data communication function as the RFID inlet 1.
For example, FIG. 4 is a schematic cross-sectional view showing a state where the RFID inlet 1 is attached so as to be wound around the battery 10. In attaching the RFID inlet 1, an adhesive or a double-sided tape can be used.
However, as shown in the drawing, it is necessary to wind the two ends of the pair of dipole antenna portions 6B in the RFID antenna 6 so as not to overlap each other.
The RFID inlet 1 can read and write various types of information related to the battery 10 by wireless data communication, and is attached so as to be in contact with the outer peripheral surface of the battery 10, and thus can dissipate heat generated from the battery 10. .

In addition, by combining both of these functions (data communication function and heat dissipation function), wireless data communication can be performed on the heat dissipation sheet itself without increasing the stacking thickness of the battery 10 by stacking with a conventional heat dissipation sheet. The function is incorporated. Alternatively, the RFID inlet 1 itself can be a heat radiating sheet or a heat radiating label.
That is, the RFID inlet 1 can be affixed to the battery 10 in the same manner as the conventional method of affixing a heat dissipation sheet or heat dissipation label without impairing the rise and aesthetics associated with the increase in the thickness of the stack as in the prior art.
Moreover, the heat radiation function can be exhibited only by attaching the RFID inlet 1 to the battery 10, and the conventional heat radiation sheet attaching step and the RFID inlet attaching step can be omitted in the same step.

    Thus, by performing the same mounting operation as the conventional heat radiation sheet or heat radiation label, the data management function of the battery 10 by the RFID inlet 1 can be provided, and the heat radiation sheet or heat radiation label and the RFID inlet 1 are produced in one piece. This eliminates the need for a magnetic sheet and a spacer, and can be manufactured at a low cost.

FIG. 5 is a plan view of the RFID inlet 20 according to the second embodiment of the present invention. The RFID inlet 20 etches the film-like laminate 2 (FIG. 1) in the same manner as the RFID inlet 1 (FIG. 2). By processing, the antenna region 22 and the remaining coating region 23 as the RFID antenna 21 are simultaneously formed on the same plane of the metal coating 4. That is, the antenna region 22 and the remaining coating region 23 are both composed of the metal coating 4.
As illustrated, the RFID antenna 21 is positioned so as to surround the periphery of the remaining film region 23 with a gap 8 therebetween.

    The RFID antenna 21 includes a loop antenna unit 21A and a boost antenna unit 21B connected to the IC chip 5, and enables wireless data communication.

    Similarly to the RFID inlet 1 described above, the RFID inlet 20 having such a configuration also has a wireless data communication function and a heat dissipation function, and can be wound or attached to various devices with a minimum thickness.

FIG. 6 is a plan view of an RFID inlet 30 according to a third embodiment of the present invention. The RFID inlet 30 is a film-like laminate similar to the RFID inlet 1 (FIG. 2) and the RFID inlet 20 (FIG. 5). By etching the body 2 (FIG. 1), the antenna region 32 and the remaining coating region 33 as the RFID antenna 31 are simultaneously formed on the same plane of the metal coating 4. That is, the antenna region 32 and the remaining covering region 33 are both composed of the metal film 4.
As shown in the drawing, a part of the antenna region 32 (the lower portion in FIG. 5) has an area equal to or larger than the remaining covering region 33, and the antenna region 32 formed as the RFID antenna 31 also has the same area. A heat dissipation function can be provided.

    The RFID antenna 31 includes a loop antenna unit 31A and a boost antenna unit 31B connected to the IC chip 5, and enables wireless data communication.

    Like the RFID inlet 1 and the RFID inlet 20, the RFID inlet 30 having such a configuration also has a wireless data communication function and a heat dissipation function, and can be wound or attached to various devices with a minimum necessary thickness.

    FIG. 7 is a plan view of an RFID inlet 40 according to a fourth embodiment of the present invention, and the RFID inlet 40 is used to etch the film-like laminate 2 in the same manner as the RFID inlet 20 (FIG. 5). Thus, the antenna region 22 and the remaining coating region 23 as the RFID antenna 21 are simultaneously formed on the same plane of the metal coating 4.

However, in the RFID inlet 40, when the antenna region 22 and the residual coating region 23 are etched, the residual coating region 23 is utilized as a free design region 41 capable of forming an arbitrary design at the same time.
That is, in the free design area 41, simultaneously with the formation of the antenna area 22 and the residual film area 23 by etching, an arbitrary character or figure or other pattern or image according to an arbitrary design is formed according to the intention of the user. The RFID inlet 40 itself can be used as an information display body having a display function. For example, in the illustrated example, the character 42 (“ABC”) is formed as a white character.
The design such as the character figure, the pattern, and the image can be related to the information stored in the IC chip 5.

Similar to the RFID inlet 20, the RFID inlet 40 having such a configuration also has a wireless data communication function and a heat dissipation function, and can be wound around or pasted on various devices with a necessary minimum thickness.
In addition, according to the manufacturing method of the RFID inlet 40, the antenna region 22 and the remaining coating region 23 (free design region 41), and further, the character 42 (for example, “ABC”) and other designs in the free design region 41 It can be formed simultaneously in the same process by etching, and the RFID inlet 40 itself can be manufactured efficiently and simply.

Furthermore, by utilizing the remaining coating area 23 as the free design area 41, the user can visually confirm the design of various figures and patterns, images, etc. related to the information in the IC chip 5. Can do.
That is, in the conventional RFID inlet, the data communication function is given priority, and the shape of the RFID antenna is the main, and it is difficult to exhibit any design or aesthetics as it is, but the RFID inlet 40 Then, an arbitrary design can be given to the free design area 41 according to the user's wishes.
Therefore, even if the RFID inlet 40 itself is directly attached to an arbitrary article (not shown), the design and convenience of the RFID inlet 40 (data by radio are not affected) without deteriorating the brand image displayed in advance on the article. Communication function). As a method for attaching the RFID inlet 40, any method such as applying an adhesive to the RFID inlet 40 to form an RFID label or using a double-sided tape can be employed.
Further, since the RFID inlet 40 itself has a visual information display function, a configuration and a process of printing necessary visual information in advance on another paper or film and pasting it on the RFID inlet 40 as in the past are not required, and simple. In addition, it can be manufactured at low cost.
In addition, a plurality of RFID inlets 40 are connected to form a strip-like RFID continuous body, which is loaded into, for example, a thermal transfer printer (not shown), and the remaining film region 9 is variable as necessary using a thermal transfer ink ribbon or the like. Information can also be printed.

    In addition, the information or data that can be visually recognized in the free design area 41 (for example, the letter “ABC” 42) is associated with the data stored in the IC chip 5 in the RFID inlet 40 so that the information or data can be collated with each other. It is. Therefore, it is possible to prevent forgery and other illegal acts that intentionally make the visible information in the free design area 41 different from the data in the IC chip 5.

    Of course, in the free design area 41, optically readable patterns and images are formed along with various visually recognizable character figures, patterns and images, and camera functions such as the above-mentioned high-function or multi-function portable terminals are provided. It can also be configured to obtain arbitrary information from this image.

    Further, an arbitrary continuous design can be given to the antenna region 22 itself formed as the RFID antenna 21 so that the design can be seen or read.

1 RFID inlet (first embodiment, FIG. 2)
2 Film-like laminate (Figure 1)
DESCRIPTION OF SYMBOLS 3 Base film 4 Metal film 5 IC chip 6 RFID antenna 6A Loop antenna part 6B of RFID antenna 6 Dipole antenna part of RFID antenna 6 7 Antenna area 8 Slight gap of linear 9 Remaining film area 10 Battery 20 RFID inlet (second Example of FIG. 5)
21 RFID antenna 21A Loop antenna portion 21B of RFID antenna 21 Boost antenna portion 22 of RFID antenna 21 Antenna region 23 Residual coating region 30 RFID inlet (third embodiment, FIG. 6)
31 RFID antenna 31A Loop antenna portion 31B of RFID antenna 31 Boost antenna portion 32 of RFID antenna 31 Antenna region 33 Residual coverage region 40 RFID inlet (fourth embodiment, FIG. 7)
41 Free design area (residual film area 23)
42 characters (“ABC”)

Claims (7)

A base film,
RFID antenna provided on this base film,
An RFID inlet having an IC chip that can be connected to the RFID antenna and store information, and capable of wireless data communication,
Etching the metal film laminated on the base film to form an antenna area as the RFID antenna, and a residual film area with a gap between the antenna area,
An RFID inlet characterized by having a heat dissipation function by the residual film region.     The RFID inlet according to claim 1, wherein the metal film covers most of the area of the base film.     3. The RFID inlet according to claim 1, wherein the antenna region is formed along a contour line of the metal coating.     The RFID inlet according to any one of claims 1 to 3, wherein the antenna region is formed on an outer peripheral side of the residual coating region.     The RFID inlet according to any one of claims 1 to 4, further comprising a heat radiation function by the antenna region formed as the RFID antenna.     6. The RFID inlet according to claim 1, wherein the remaining film region can be used as a free design region for forming an arbitrary design by the etching.     7. The RFID inlet according to claim 1, wherein the design is related to the information stored in the IC chip.

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