JP2002042096A - Setting structure for electromagnetic induction tag - Google Patents
Setting structure for electromagnetic induction tagInfo
- Publication number
- JP2002042096A JP2002042096A JP2000223313A JP2000223313A JP2002042096A JP 2002042096 A JP2002042096 A JP 2002042096A JP 2000223313 A JP2000223313 A JP 2000223313A JP 2000223313 A JP2000223313 A JP 2000223313A JP 2002042096 A JP2002042096 A JP 2002042096A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic induction
- base material
- induction tag
- magnetic material
- metal base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 92
- 239000000463 material Substances 0.000 claims abstract description 83
- 239000000696 magnetic material Substances 0.000 claims abstract description 74
- 229910052751 metal Inorganic materials 0.000 claims description 80
- 239000002184 metal Substances 0.000 claims description 80
- 238000009434 installation Methods 0.000 claims description 23
- 125000006850 spacer group Chemical group 0.000 abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Credit Cards Or The Like (AREA)
- Details Of Aerials (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アンテナコイル
と、制御部とを有する電磁誘導タグを磁性体や金属母材
に設ける設置構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation structure in which an electromagnetic induction tag having an antenna coil and a control unit is provided on a magnetic material or a metal base material.
【０００２】[0002]
【従来の技術】従来、電磁誘導タグ（ＲＦ−ＩＤタグ）
は、内部に埋設されたアンテナコイルを貫く磁界の変化
により電力の受電と信号の送受信を可能にするものであ
るため電磁誘導タグの設置場所付近に磁性体や金属が存
在すると、磁性体や金属の影響によって磁界が減衰して
利用出来なくなるという固定観念があったため電磁誘導
タグの近辺から磁性体や金属を排除しようとするのが電
磁誘導においては常識であった。2. Description of the Related Art Conventionally, electromagnetic induction tags (RF-ID tags)
Is a device that enables power reception and signal transmission / reception by changing the magnetic field that penetrates the antenna coil embedded inside.If a magnetic material or metal exists near the installation location of the electromagnetic induction tag, the magnetic material or metal There was a stereotype that the magnetic field was attenuated and became unusable due to the influence of, and it was common sense in electromagnetic induction to try to remove magnetic materials and metals from the vicinity of the electromagnetic induction tag.
【０００３】従って、電磁誘導タグを磁性体や金属物品
に取り付けて利用したい場合には、電磁誘導タグを磁性
体や金属物品から出来るだけ離した位置に設置するか、
或いは磁性体や金属母材の表面に非磁性体材料を介在さ
せて電磁誘導タグを磁性体や金属母材の表面から突出且
つ露出した状態で設けるのが当り前であると考えられて
いた。Therefore, when it is desired to use an electromagnetic induction tag attached to a magnetic material or a metal article, it is necessary to install the electromagnetic induction tag at a position as far as possible from the magnetic substance or the metal article,
Alternatively, it has been considered natural to provide an electromagnetic induction tag with a nonmagnetic material interposed on the surface of a magnetic material or a metal base material so as to protrude and be exposed from the surface of the magnetic material or the metal base material.
【０００４】また、マンホール蓋等の金属製の物品にワ
イヤレスＩＣタグを設置する従来例として、図７に示す
特開平9-331279号公報（公知例１）及び図８に示す特開
平10-4374号公報（公知例２）に開示された技術が提案
されている。図７及び図８において、マンホール鉄蓋10
1の表面に開けた底の有る穴102の内部に電磁誘導型ワイ
ヤレスＩＣタグ103が設置されており、図７に示す公知
例１ではアンテナコイル104の両面を穴102の金属側壁面
に対向するように配置し、電磁誘導型ワイヤレスＩＣタ
グ103の情報通信媒体である交流磁界が穴102の内部で最
も減衰しない方向へ向けたとしている。As a conventional example of installing a wireless IC tag on a metal article such as a manhole cover, Japanese Patent Laid-Open No. 9-331279 (known example 1) shown in FIG. 7 and Japanese Patent Laid-Open No. 10-4374 shown in FIG. A technique disclosed in Japanese Patent Application Laid-Open Publication (KOKAI) No. 2 (known example 2) is proposed. 7 and 8, the manhole iron cover 10
An electromagnetic induction type wireless IC tag 103 is installed inside a hole 102 having a bottom formed in the surface of the antenna coil 1. In the known example 1 shown in FIG. 7, both surfaces of the antenna coil 104 face the metal side wall surface of the hole 102. The AC magnetic field, which is the information communication medium of the electromagnetic induction type wireless IC tag 103, is directed to the direction in which the inside of the hole 102 is least attenuated.
【０００５】また、図８に示す公知例２では中心点で導
線が交差する８の字状のコイル、或いは２つのコイルか
らなるアンテナコイル105を誘導電流の向きが逆になる
ように配置し、穴102の内部でアンテナコイル105の２分
割された夫々のコイル105a，105bに同一の磁力線106が
貫く方向が逆になり、夫々のコイル105a，105bで生じる
誘導電流が同じ方向になり、アンテナコイル105の全体
で生じる誘導電流が大きくなって大きな信号が取り出せ
るとしている。[0005] Further, in the known example 2 shown in FIG. 8, a figure-shaped coil in which conductors intersect at a center point or an antenna coil 105 composed of two coils is arranged so that the directions of induced currents are reversed. The direction in which the same line of magnetic force 106 passes through each of the two divided coils 105a and 105b of the antenna coil 105 inside the hole 102 is reversed, and the induced current generated in each of the coils 105a and 105b becomes the same direction. It is said that the induced current generated in the entire 105 becomes large and a large signal can be taken out.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、前述の
従来例において、磁性体や金属母材の表面に非磁性体材
料からなるスペーサ等を介さずに電磁誘導タグを設置す
るといった発想は無く、非磁性体材料や空間等を介在さ
せるため設置構造が複雑であった。However, in the conventional example described above, there is no idea that an electromagnetic induction tag is installed on the surface of a magnetic material or a metal base material without a spacer or the like made of a non-magnetic material. The installation structure was complicated because magnetic materials, spaces, etc. were interposed.
【０００７】また、図７及び図８に示された公知例１、
２においても電磁誘導型ワイヤレスＩＣタグ103とマン
ホール鉄蓋101との間に空間を確保するか、マンホール
鉄蓋101の穴102の底面に非磁性体材料を介在させて電磁
誘導型ワイヤレスＩＣタグ103を設けるのが常識的であ
った。[0007] Further, a known example 1 shown in FIGS.
2 also, a space is secured between the electromagnetic induction type wireless IC tag 103 and the manhole iron cover 101, or a nonmagnetic material is interposed on the bottom surface of the hole 102 of the manhole iron cover 101, and the electromagnetic induction type wireless IC tag 103 is provided. Was common sense.
【０００８】そのため、穴102を深くまで穿設しなけれ
ばならず、マンホール鉄蓋101等の金属母材の強度を著
しく低下させるおそれがあり、穴102の形成も困難であ
った。また、空間を確保する構成が複雑であり、非磁性
体材料を介在させる場合には別途、非磁性体材料を用意
しなければならず、部品点数が増大してコストがかかる
という問題がある。[0008] Therefore, the hole 102 must be formed deep, and the strength of the metal base material such as the manhole iron cover 101 may be remarkably reduced, and it is difficult to form the hole 102. Further, the structure for securing the space is complicated, and when a non-magnetic material is interposed, a separate non-magnetic material must be prepared, resulting in a problem that the number of parts increases and the cost increases.
【０００９】本発明は前記課題を解決するものであり、
その目的とするところは、電磁誘導タグを磁性体や金属
母材に１０μｍ以上、且つ５mm以下の離間距離で設置す
ることで電磁誘導タグの設置構造が簡単に出来、磁性体
や金属母材の表面側が開放された空間内に電磁誘導タグ
を設置する場合でも該空間の深さを最小限に抑えること
が出来、これにより磁性体や金属母材の性能や強度を維
持することが出来、構成が簡単で非磁性体材料等のスペ
ーサを不要とした電磁誘導タグの設置構造を提供せんと
するものである。The present invention has been made to solve the above problems, and
The purpose is to install the electromagnetic induction tag on a magnetic material or metal base material at a separation distance of 10 μm or more and 5 mm or less, so that the installation structure of the electromagnetic induction tag can be simplified, and the magnetic material or metal base material can be used. Even when the electromagnetic induction tag is installed in a space where the front side is open, the depth of the space can be minimized, thereby maintaining the performance and strength of the magnetic material and the metal base material. However, the present invention provides an electromagnetic induction tag installation structure that is simple and does not require a spacer such as a nonmagnetic material.
【００１０】[0010]
【課題を解決するための手段】本発明者等は、磁性体や
金属母材への電磁誘導タグの有効利用を目的として、電
磁誘導タグの設置場所付近に磁性体や金属が存在する
と、該磁性体や金属の影響によって磁界が減衰して使用
出来なくなるという従来の固定観念を排除して、磁性体
や金属母材に電磁誘導タグを非磁性体材料からなるスペ
ーサ等を介さずに設けた場合でも利用出来ることを実験
的に見い出し、更には磁性体や金属母材の表面側が開放
された空間に電磁誘導タグを埋設しても有効に利用出来
ることを実現させたものである。Means for Solving the Problems The inventors of the present invention have proposed that if a magnetic substance or metal is present near the installation location of an electromagnetic induction tag for the purpose of effectively using the electromagnetic induction tag on a magnetic substance or metal base material, The conventional fixed idea that the magnetic field is attenuated due to the influence of the magnetic material or metal is eliminated, and the electromagnetic induction tag is provided on the magnetic material or metal base material without using a spacer made of a non-magnetic material. It has been experimentally found that it can be used even in such a case, and furthermore, it has been realized that even if an electromagnetic induction tag is buried in a space where the surface side of a magnetic material or a metal base material is open, it can be used effectively.
【００１１】即ち、例えば、電磁誘導タグでは外部のリ
ーダライタ端末機から送電された交流磁界を電磁誘導タ
グに内蔵されたアンテナコイルの共振周波数により受電
する。その際に従来の電磁誘導タグでは、アンテナコイ
ルを複数巻きにし、且つ線径を太くすることで起電力を
大きくして通信距離を延ばす方式が一般的であった。そ
のために比較的消費電力が大きくなり、これに見合った
電力を得るためにアンテナコイルを複数巻きにしなけれ
ばならないという制約があった。That is, for example, an electromagnetic induction tag receives an AC magnetic field transmitted from an external reader / writer terminal at a resonance frequency of an antenna coil incorporated in the electromagnetic induction tag. At that time, in a conventional electromagnetic induction tag, a method of extending the communication distance by increasing the electromotive force by increasing the number of turns of the antenna coil and increasing the wire diameter was generally used. Therefore, power consumption is relatively large, and there is a restriction that a plurality of turns of the antenna coil are required to obtain power corresponding to the power consumption.
【００１２】一方、アンテナコイルの近くに磁性体や金
属材があると共振周波数がずれて起電力が低下し、通信
が出来なくなる場合がある。特に通信距離を延ばすため
にアンテナコイルを複数巻きにした場合、該アンテナコ
イルの近くに磁性体や金属材があるとアンテナコイルの
共振周波数がずれて受電する起電力が低下し、磁性体や
金属材の影響を受け易くなる。そのため、磁性体や金属
母材に電磁誘導タグを設けて利用することは不可能であ
るとの固定観念が支配的であった。On the other hand, if there is a magnetic material or a metal material near the antenna coil, the resonance frequency is shifted, the electromotive force is reduced, and communication may not be performed. In particular, when the antenna coil is wound in a plurality of turns in order to extend the communication distance, if there is a magnetic material or a metal material near the antenna coil, the resonance frequency of the antenna coil shifts, the electromotive force to be received decreases, and the magnetic material or metal It is more susceptible to wood. For this reason, the prevailing notion that it is impossible to provide an electromagnetic induction tag on a magnetic substance or a metal base material and use it is dominant.
【００１３】しかしながら、最近では巻き数を少なくし
て共振周波数帯域の偏差範囲を広く設定したアンテナコ
イルが提案されており、このような磁性体や金属材が近
くにあっても受電による起電力は低下せず、磁性体や金
属母材に磁力が吸収され難い電磁誘導タグにおいて本発
明を適用した結果、磁性体や金属母材に電磁誘導タグを
非磁性体材料からなるスペーサ等を介さずに設置して利
用することが可能であることが本発明者等が行った実験
結果により判明した。However, recently, an antenna coil in which the number of windings is reduced and the deviation range of the resonance frequency band is set wide has been proposed. Even if such a magnetic or metal material is nearby, the electromotive force due to power reception is small. As a result of applying the present invention to an electromagnetic induction tag in which the magnetic force is not easily absorbed by the magnetic substance or the metal base material without lowering, the electromagnetic induction tag is not attached to the magnetic substance or the metal base material without using a spacer made of a non-magnetic material. It has been found from the results of experiments conducted by the present inventors that they can be installed and used.
【００１４】更に、本発明者等が行った実験結果によれ
ば、磁界は狭い隙間であっても同心円盤状に形成された
アンテナコイルの径方向の大きさを確保すれば回析現象
により狭い隙間から伝搬することが判明したものであ
り、これにより、電磁誘導タグと外部のリーダライタ端
末機との間で電力送電媒体及び情報通信媒体である交流
磁界を相互に送受信することが出来ることを見い出した
ものである。Further, according to the results of experiments conducted by the present inventors, the magnetic field is narrow due to the diffraction phenomenon if the radial size of the concentric disk-shaped antenna coil is ensured even in a narrow gap. It has been found that it propagates through a gap, and this allows the electromagnetic induction tag and an external reader / writer terminal to mutually transmit and receive an AC magnetic field that is a power transmission medium and an information communication medium. That is what I found.
【００１５】そして、前記目的を達成するための本発明
に係る電磁誘導タグの設置構造は、アンテナコイルと、
制御部とを有する電磁誘導タグを、磁性体または金属母
材に設ける設置構造であって、前記電磁誘導タグは同心
円盤状に形成されたアンテナコイルを有し、該アンテナ
コイルの磁性体側または金属母材側の導電性の外表面
と、これに対面する前記磁性体または金属母材の壁面と
の間の離間距離を１０μｍ以上、且つ５mm以下に設定し
たことを特徴とする。[0015] The installation structure of the electromagnetic induction tag according to the present invention for achieving the above object comprises an antenna coil,
An electromagnetic induction tag having a control unit and a magnetic material or a metal base material, wherein the electromagnetic induction tag has an antenna coil formed in a concentric disc shape, and the magnetic material side of the antenna coil or metal. The distance between the conductive outer surface on the base material side and the wall surface of the magnetic material or the metal base material facing the outer surface is set to 10 μm or more and 5 mm or less.
【００１６】本発明は、上述の如く構成したので、アン
テナコイルの磁性体側または金属母材側の導電性の外表
面と、これに対面する磁性体または金属母材の壁面との
間の離間距離を１０μｍ以上、且つ５mm以下に設定した
ことで、アンテナコイルの導電性の外表面と、磁性体ま
たは金属母材の壁面との間にアンテナコイルの巻線の電
気的絶縁被膜程度の１０μｍ以上の離間距離を確保する
だけで電磁誘導タグを磁性体または金属母材に非磁性体
材料からなるスペーサ等を介さずに設置して利用するこ
とが出来る。Since the present invention is constructed as described above, the separation distance between the conductive outer surface of the magnetic material or the metal base material of the antenna coil and the wall surface of the magnetic material or the metal base material facing the outer surface. Is set to 10 μm or more and 5 mm or less, so that the electric insulation coating of the winding of the antenna coil is at least 10 μm between the conductive outer surface of the antenna coil and the wall surface of the magnetic material or the metal base material. The electromagnetic induction tag can be installed and used on a magnetic or metal base material without interposing a spacer or the like made of a non-magnetic material simply by ensuring the separation distance.
【００１７】また、アンテナコイルの導電性の外表面
と、磁性体または金属母材の壁面との間の離間距離を５
mm以下に設定したことで、磁性体または金属母材の表面
からの電磁誘導タグの突出量、或いは磁性体または金属
母材に設けた表面側が開放された空間の深さを小さくす
ることが出来る。従って、磁性体や金属母材の性能や強
度を維持することが出来る。The distance between the conductive outer surface of the antenna coil and the wall surface of the magnetic or metal base material is 5
By setting the diameter to be equal to or less than mm, the amount of protrusion of the electromagnetic induction tag from the surface of the magnetic material or metal base material, or the depth of the space provided on the surface of the magnetic material or metal base material that is open can be reduced. . Therefore, the performance and strength of the magnetic material and the metal base material can be maintained.
【００１８】また、前記電磁誘導タグが前記磁性体また
は金属母材の表面に設けられた場合には、電磁誘導タグ
の取付構造が簡単であり、前記電磁誘導タグが前記磁性
体または金属母材に設けた表面側が開放された空間内に
埋設された場合には、電磁誘導タグの保全が確保出来
る。Further, when the electromagnetic induction tag is provided on the surface of the magnetic material or the metal base material, the mounting structure of the electromagnetic induction tag is simple, and the electromagnetic induction tag is mounted on the magnetic material or the metal base material. When the surface side provided in the above is buried in the open space, the maintenance of the electromagnetic induction tag can be secured.
【００１９】[0019]
【発明の実施の形態】図により本発明に係る電磁誘導タ
グの設置構造の一実施形態を具体的に説明する。図１
（ａ）は本発明に係る電磁誘導タグの設置構造の構成を
示す斜視説明図、図１（ｂ）は本発明に係る電磁誘導タ
グの設置構造の構成を示す断面説明図、図２は電磁誘導
タグの構成を示す正面及び側断面説明図、図３は電磁誘
導タグに発生する磁界の様子を示す模式図、図４は外部
のリーダライタ端末機に設けられたアンテナから発生し
た磁界が磁性体や金属母材に設けた表面側が開放された
空間に到達する様子を示す模式図、図５は磁性体や金属
母材に設けた表面側が開放された空間に埋設した電磁誘
導タグから発生した磁界が磁性体や金属母材の外部に伝
搬する様子を示す模式図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an installation structure of an electromagnetic induction tag according to the present invention will be specifically described with reference to the drawings. Figure 1
(A) is a perspective explanatory view showing the configuration of the installation structure of the electromagnetic induction tag according to the present invention, FIG. 1 (b) is a cross-sectional explanatory view showing the configuration of the installation structure of the electromagnetic induction tag according to the present invention, and FIG. FIG. 3 is a schematic front view showing a configuration of an induction tag, and FIG. 3 is a schematic diagram showing a state of a magnetic field generated in the electromagnetic induction tag. FIG. 4 is a diagram showing a magnetic field generated from an antenna provided in an external reader / writer terminal. FIG. 5 is a schematic diagram showing a state in which a front side provided on a body or a metal base material reaches an open space, and FIG. 5 is generated from an electromagnetic induction tag embedded in a space provided on a magnetic body or a metal base material with an open front side. It is a schematic diagram which shows a mode that a magnetic field propagates outside a magnetic body and a metal base material.
【００２０】図１及び図２において、１は電磁誘導タグ
（ＲＦ−ＩＤタグ）本体であり、その内部には同心円盤
状に形成されたアンテナコイル２が封止されている。1 and 2, reference numeral 1 denotes an electromagnetic induction tag (RF-ID tag) main body, in which an antenna coil 2 formed in a concentric disk shape is sealed.
【００２１】アンテナコイル２には電気的に接続された
制御部となる半導体ＩＣチップ４が接続されており、該
半導体ＩＣチップ４には外部から電磁誘導により受電し
た電力を蓄電する蓄電手段となるコンデンサが設けられ
ている。尚、蓄電手段となるコンデンサが無く、外部の
リードライト端末機から連続的に半導体ＩＣチップ４に
電力が供給されるものでも良い。The antenna coil 2 is connected to a semiconductor IC chip 4 serving as a control unit electrically connected thereto. The semiconductor IC chip 4 serves as power storage means for storing power received from outside by electromagnetic induction. A capacitor is provided. It should be noted that the semiconductor IC chip 4 may be continuously supplied with power from an external read / write terminal without a capacitor serving as power storage means.
【００２２】半導体ＩＣチップ４の内部には記憶手段と
なるメモリが設けられており、このメモリに、例えば、
電磁誘導タグ１が設けられる磁性体や金属母材５を有す
る製品等の履歴データやロット管理データ等が記憶され
ている。A memory serving as a storage means is provided inside the semiconductor IC chip 4.
Stores history data, lot management data, and the like of a product having a magnetic substance or a metal base material 5 provided with the electromagnetic induction tag 1.
【００２３】ここで、磁性体としては、樹脂、セメン
ト、コンクリート等に鉄粉等の磁性体を混練した材料や
磁石等が適用可能であり、金属母材としては鉄材やアル
ミニウム材、銅材、ステンレス材等の種々の金属材料が
適用可能である。Here, as the magnetic material, a material obtained by kneading a magnetic material such as iron powder with resin, cement, concrete, or the like, a magnet, or the like can be used. As the metal base material, an iron material, an aluminum material, a copper material, Various metal materials such as stainless steel are applicable.
【００２４】本実施形態の電磁誘導タグ１はアンテナコ
イル２の径方向の外径Ｄ1に応じた外径Ｄ2を有する樹脂
容器３に封止されており、磁性体や金属母材５に設けら
れた表面側が開放された空間６に挿入され、該空間６の
側壁面６ａ、底壁面６ｂに略密着してスペーサ等を介さ
ずに直に設置される。空間６内に埋設された電磁誘導タ
グ１の外周には非磁性体材料等からなる樹脂７や接着剤
等を充填して固定する。尚、樹脂容器３の代わりにガラ
ス等で封止したものでも良い。The electromagnetic induction tag 1 of the present embodiment is sealed in the resin container 3 having an outer diameter D 2 corresponding to the outer diameter D 1 of the radial direction of the antenna coil 2, the magnetic body and the metal matrix 5 The provided surface side is inserted into the open space 6, and is substantially directly attached to the side wall surface 6a and the bottom wall surface 6b of the space 6, and is directly installed without a spacer or the like. The outer periphery of the electromagnetic induction tag 1 embedded in the space 6 is filled and fixed with a resin 7 made of a non-magnetic material or the like, an adhesive or the like. In addition, what was sealed with glass etc. instead of the resin container 3 may be used.
【００２５】尚、アンテナコイル２の磁性体や金属母材
５側の導電性の外表面と、これに対面する磁性体や金属
母材５の壁面となる底壁面６ｂとの間の離間距離Ｇ
1は、アンテナコイル２の巻線の電気的絶縁被膜程度の
１０μｍ以上で、且つ５mm以下に設定されている。The distance G between the magnetic material of the antenna coil 2 or the conductive outer surface of the metal base material 5 and the bottom surface 6b which faces the magnetic material or the metal base material 5 facing the outer surface.
Numeral 1 is set to 10 μm or more, which is about the same as the electrical insulation film of the winding of the antenna coil 2, and 5 mm or less.
【００２６】従って、アンテナコイル２の電気的絶縁被
膜と、半導体ＩＣチップ４のパッケージにより電気的絶
縁が施されていれば、樹脂容器３を除去してアンテナコ
イル２と半導体ＩＣチップ４を裸のまま空間６内に埋設
することでも良い。これにより空間６のスペースを小さ
く出来、磁性体や金属母材５の性能や強度を維持するこ
とが出来る。Therefore, if the electrical insulation coating of the antenna coil 2 and the package of the semiconductor IC chip 4 are electrically insulated, the resin container 3 is removed and the antenna coil 2 and the semiconductor IC chip 4 are bare. It may be buried in the space 6 as it is. Thereby, the space of the space 6 can be reduced, and the performance and strength of the magnetic material and the metal base material 5 can be maintained.
【００２７】アンテナコイル２は磁性体や金属母材５の
表面５ａから突出しても構わないが、電磁誘導タグ１の
保全を確保するためには表面５ａから突出していない方
が望ましい。Although the antenna coil 2 may protrude from the surface 5a of the magnetic material or the metal base material 5, it is preferable that the antenna coil 2 does not protrude from the surface 5a in order to secure the integrity of the electromagnetic induction tag 1.
【００２８】図３はフリーの状態の電磁誘導タグ１から
発生する磁界Ｈの様子を示し、図４（ａ），（ｂ）は外
部のリーダライタ端末機に設けられたアンテナ８から発
生した磁界Ｈが磁性体や金属母材５に設けた空間６に到
達する様子を示す。図４（ａ）はアンテナ８の軸方向
（磁束方向）から見た図、図４（ｂ）は図４（ａ）の空
間６近傍での拡大図である。FIG. 3 shows a state of a magnetic field H generated from the electromagnetic induction tag 1 in a free state. FIGS. 4A and 4B show a magnetic field generated from an antenna 8 provided in an external reader / writer terminal. The state in which H reaches the space 6 provided in the magnetic material or the metal base material 5 is shown. 4A is a diagram viewed from the axial direction (magnetic flux direction) of the antenna 8, and FIG. 4B is an enlarged diagram in the vicinity of the space 6 in FIG.
【００２９】また、図５は図１に示すように磁性体や金
属母材５の空間６の内部に埋設された電磁誘導タグ１か
ら発生した磁界Ｈが磁性体や金属母材５の外部に伝搬す
る様子を示す。FIG. 5 shows a magnetic field H generated from the electromagnetic induction tag 1 embedded in the space 6 of the magnetic material or the metal base material 5 as shown in FIG. The state of propagation is shown.
【００３０】本実施形態で採用した電磁誘導タグ１の樹
脂３の外径Ｄ2は１２．２mm〜６８．２mm程度であり、
厚さＴは０．７mm〜１２．０mm程度である。従って、磁
性体や金属母材５の空間６は電磁誘導タグ１の外径Ｄ2
及び厚さＴに応じた大きさで形成される。また、電磁誘
導タグ１の重量は、０．７g〜５．２g程度である。The outer diameter D 2 of the resin 3 of the electromagnetic induction tag 1 employed in this embodiment is about 12.2 mm to 68.2 mm,
The thickness T is about 0.7 mm to 12.0 mm. Therefore, the space 6 of the magnetic material or the metal base material 5 is the outer diameter D 2 of the electromagnetic induction tag 1.
And a size corresponding to the thickness T. The weight of the electromagnetic induction tag 1 is about 0.7 g to 5.2 g.
【００３１】以下に本実施形態で採用した電磁誘導タグ
１の樹脂３の外径Ｄ2、及びアンテナコイル２の外径Ｄ1
及びアンテナコイル２の内径Ｄ3の一例を示す。Hereinafter, the outer diameter D 2 of the resin 3 of the electromagnetic induction tag 1 and the outer diameter D 1 of the antenna coil 2 employed in the present embodiment will be described.
And shows an example of the internal diameter D 3 of the antenna coil 2.
【００３２】[0032]
【表１】 [Table 1]
【００３３】例えば、アンテナコイル２の一例として
は、直径３０μｍ程度の銅線が単線巻きで径方向に多重
層をなして同心円盤状に巻かれており、そのアンテナコ
イル２のインダクタンスは９．５mH（周波数１２５kH
z）程度で、アンテナコイル２に共振用に別途接続され
たコンデンサの静電容量は１７０pF（周波数１２５kH
z）程度であった。For example, as an example of the antenna coil 2, a copper wire having a diameter of about 30 μm is wound in a single wire and is wound in a concentric disc shape in a radially multiple layer, and the inductance of the antenna coil 2 is 9.5 mH. (Frequency 125 kHz
z), and the capacitance of a capacitor separately connected to the antenna coil 2 for resonance is 170 pF (frequency 125 kHz
z).
【００３４】図２に示すように、電磁誘導タグ１のアン
テナコイル２の外径端部と、樹脂容器３の外径端部とは
上記表１に示したＤ1，Ｄ2の寸法差に応じた位置関係に
あり、図１に示す空間６の側壁面６ａと、アンテナコイ
ル２の外径端部との間に所定の離間間隔が形成され、こ
れによりアンテナコイル２を貫く磁束が形成され易く、
磁界Ｈの形成に寄与する。As shown in FIG. 2, the outer diameter end of the antenna coil 2 of the electromagnetic induction tag 1 and the outer diameter end of the resin container 3 have a difference in dimension between D 1 and D 2 shown in Table 1 above. A predetermined spacing is formed between the side wall surface 6a of the space 6 shown in FIG. 1 and the outer diameter end of the antenna coil 2 so that a magnetic flux penetrating the antenna coil 2 is formed. Easy,
It contributes to the formation of the magnetic field H.
【００３５】電磁誘導タグ１を磁性体や金属母材５に設
けた表面側が開放された空間６の底壁面６ｂに略密着し
て直付けで設置しても図５に示すように磁性体や金属母
材５の表面側に磁界Ｈが発生している。磁界Ｈは空間６
の開口部が狭い隙間であってもアンテナコイル２の外径
の大きさＤ1を確保すれば回析現象により隙間を通して
伝搬することが出来、これにより、電磁誘導タグ１と図
示しない外部のリーダライタ端末機との間で電力送電媒
体及び情報通信媒体である交流磁界を相互に送受信する
ことが出来るものである。Even when the electromagnetic induction tag 1 is installed directly and in close contact with the bottom wall 6b of the open space 6, the surface of the electromagnetic induction tag 1 provided on the magnetic material or the metal base material 5 is provided as shown in FIG. A magnetic field H is generated on the surface side of the metal base material 5. Magnetic field H is space 6
Can opening of the propagate through the gap by diffraction phenomenon when securing the narrower even clearance of the outer diameter of the antenna coil 2 size D 1, thereby, the external reader (not shown) and electromagnetic induction tag 1 An AC magnetic field, which is a power transmission medium and an information communication medium, can be transmitted to and received from a writer terminal.
【００３６】次に図６を用いて、本発明に係る電磁誘導
タグの設置構造の第２実施形態について説明する。図６
（ａ）は本発明に係る電磁誘導タグの設置構造の第２実
施形態の構成を示す斜視説明図、図６（ｂ）は本発明に
係る電磁誘導タグの設置構造の第２実施形態の構成を示
す断面説明図である。尚、前記第１実施形態と同様に構
成したものは同一の符号を付して説明を省略する。Next, a second embodiment of the installation structure of the electromagnetic induction tag according to the present invention will be described with reference to FIG. FIG.
FIG. 6A is a perspective explanatory view showing a configuration of an electromagnetic induction tag installation structure according to a second embodiment of the present invention, and FIG. 6B is a configuration of an electromagnetic induction tag installation structure according to a second embodiment of the present invention. FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
【００３７】本実施形態では、図６に示すように、磁性
体や金属母材５の表面５ａにアンテナコイル２及び半導
体ＩＣチップ４を樹脂等を被覆してモールドした電磁誘
導タグ１が当接してビス９等により固定されている。
尚、ビス９の代わりに接着剤等により固定しても良い
し、アンテナコイル２や半導体ＩＣチップ４を裸のまま
磁性体や金属母材５の表面５ａに固定しても良い。In this embodiment, as shown in FIG. 6, the electromagnetic induction tag 1 in which the antenna coil 2 and the semiconductor IC chip 4 are coated with a resin or the like and molded on the surface 5a of the magnetic material or the metal base material 5 comes into contact. Screw 9 and the like.
The screw 9 may be fixed by an adhesive or the like, or the antenna coil 2 and the semiconductor IC chip 4 may be fixed to the magnetic material or the surface 5a of the metal base material 5 while being naked.
【００３８】本実施形態の場合もアンテナコイル２の磁
性体や金属母材５側の導電性の外表面と、これに対面す
る磁性体や金属母材５の壁面となる表面５ａとの間の離
間距離Ｇ1は、アンテナコイル２の巻線の電気的絶縁被
膜程度の１０μｍ以上で、且つ５mm以下に設定されてい
る。Also in the case of the present embodiment, the gap between the magnetic material of the antenna coil 2 and the conductive outer surface on the metal base material 5 side and the magnetic material and the surface 5a which becomes the wall surface of the metal base material 5 facing it. distance G 1 is above 10μm about electrical insulating coating of the winding of the antenna coil 2 is and set to 5mm or less.
【００３９】上記構成によれば、前記第１実施形態のよ
うに磁性体や金属母材５に空間６を形成する必要がな
く、磁性体や金属母材５の性能や強度を維持することが
出来る。また、アンテナコイル２や半導体ＩＣチップ４
を被覆するケースの強度を高めれば、電磁誘導タグ１の
保全を確保することが出来る。According to the above configuration, it is not necessary to form the space 6 in the magnetic body or the metal base material 5 as in the first embodiment, and the performance and strength of the magnetic body or the metal base material 5 can be maintained. I can do it. In addition, the antenna coil 2 and the semiconductor IC chip 4
If the strength of the case for covering the electromagnetic induction tag is increased, the maintenance of the electromagnetic induction tag 1 can be ensured.
【００４０】[0040]
【発明の効果】本発明は、上述の如き構成と作用とを有
するので、電磁誘導タグを磁性体や金属母材に非磁性体
材料からなるスペーサ等を介さずに設置することで電磁
誘導タグの設置構造が簡単に出来、磁性体や金属母材の
表面側が開放された空間内に電磁誘導タグを設置する場
合でも該空間の深さを最小限に抑えることが出来、これ
により磁性体や金属母材の性能や強度を維持することが
出来、構成が簡単で非磁性体材料等のスペーサを不要と
した電磁誘導タグの設置構造を提供することが出来る。Since the present invention has the above-described configuration and operation, the electromagnetic induction tag can be installed on a magnetic or metal base material without interposing a spacer made of a non-magnetic material. The installation structure can be simplified, and the depth of the space can be minimized even when the electromagnetic induction tag is installed in a space where the surface side of the magnetic material or the metal base material is open. It is possible to provide an installation structure of an electromagnetic induction tag which can maintain the performance and strength of a metal base material, has a simple configuration, and does not require a spacer such as a nonmagnetic material.
【００４１】即ち、アンテナコイルの磁性体側または金
属母材側の導電性の外表面と、これに対面する磁性体ま
たは金属母材の壁面との間の離間距離を１０μｍ以上、
且つ５mm以下に設定したことで、アンテナコイルの導電
性の外表面と、磁性体または金属母材の壁面との間にア
ンテナコイルの巻線の電気的絶縁被膜程度の１０μｍ以
上の離間距離を確保するだけで電磁誘導タグを磁性体ま
たは金属母材に非磁性体材料からなるスペーサ等を介さ
ずに設置して利用することが出来る。That is, the distance between the conductive outer surface of the magnetic material or the metal base material side of the antenna coil and the wall surface of the magnetic material or the metal base material facing the outer surface is 10 μm or more.
In addition, by setting it to 5 mm or less, a distance of at least 10 μm, which is equivalent to the electrical insulation coating of the winding of the antenna coil, is secured between the conductive outer surface of the antenna coil and the wall surface of the magnetic material or metal base material. By simply doing so, the electromagnetic induction tag can be installed and used on a magnetic or metal base material without using a spacer made of a non-magnetic material.
【００４２】また、アンテナコイルの導電性の外表面
と、磁性体または金属母材の壁面との間の離間距離を５
mm以下に設定したことで、磁性体または金属母材の表面
からの電磁誘導タグの突出量、或いは磁性体または金属
母材に設けた表面側が開放された空間の深さを小さくす
ることが出来る。従って、磁性体や金属母材の性能や強
度を維持することが出来る。The distance between the conductive outer surface of the antenna coil and the wall surface of the magnetic material or metal base material is 5
By setting the diameter to be equal to or less than mm, the amount of protrusion of the electromagnetic induction tag from the surface of the magnetic material or metal base material, or the depth of the space provided on the surface of the magnetic material or metal base material that is open can be reduced. . Therefore, the performance and strength of the magnetic material and the metal base material can be maintained.
【００４３】また、電磁誘導タグが磁性体または金属母
材の表面に設けられた場合には、電磁誘導タグの取付構
造が簡単であり、電磁誘導タグが磁性体または金属母材
に設けた表面側が開放された空間内に埋設された場合に
は、電磁誘導タグの保全が確保出来る。When the electromagnetic induction tag is provided on the surface of the magnetic or metal base material, the mounting structure of the electromagnetic induction tag is simple, and the surface of the electromagnetic induction tag provided on the magnetic or metal base material is simple. When buried in an open space, the integrity of the electromagnetic induction tag can be ensured.
【図１】（ａ）は本発明に係る電磁誘導タグの設置構造
の構成を示す斜視説明図、（ｂ）は本発明に係る電磁誘
導タグの設置構造の構成を示す断面説明図である。FIG. 1A is a perspective explanatory view showing a configuration of an installation structure of an electromagnetic induction tag according to the present invention, and FIG. 1B is a sectional explanatory view showing a configuration of an installation structure of an electromagnetic induction tag according to the present invention.
【図２】電磁誘導タグの構成を示す正面及び側断面説明
図である。FIG. 2 is an explanatory front and side sectional view showing a configuration of an electromagnetic induction tag.
【図３】電磁誘導タグに発生する磁界の様子を示す模式
図である。FIG. 3 is a schematic diagram illustrating a state of a magnetic field generated in the electromagnetic induction tag.
【図４】外部のリーダライタ端末機に設けられたアンテ
ナから発生した磁界が磁性体や金属母材に設けた表面側
が開放された空間に到達する様子を示す模式図である。FIG. 4 is a schematic diagram showing a state in which a magnetic field generated from an antenna provided in an external reader / writer terminal reaches a space provided on a magnetic material or a metal base material and having an open front side.
【図５】磁性体や金属母材に設けた表面側が開放された
空間に埋設した電磁誘導タグから発生した磁界が磁性体
や金属母材の外部に伝搬する様子を示す模式図である。FIG. 5 is a schematic view showing a state in which a magnetic field generated from an electromagnetic induction tag embedded in a space provided on a magnetic body or a metal base material and having an open front side propagates to the outside of the magnetic body or the metal base material.
【図６】（ａ）は本発明に係る電磁誘導タグの設置構造
の第２実施形態の構成を示す斜視説明図、（ｂ）は本発
明に係る電磁誘導タグの設置構造の第２実施形態の構成
を示す断面説明図である。FIG. 6 (a) is a perspective explanatory view showing a configuration of an electromagnetic induction tag installation structure according to a second embodiment of the present invention, and FIG. 6 (b) is a second embodiment of an electromagnetic induction tag installation structure according to the present invention. FIG. 3 is an explanatory sectional view showing the configuration of FIG.
【図７】公知例１を説明する図である。FIG. 7 is a diagram illustrating a known example 1.
【図８】公知例２を説明する図である。FIG. 8 is a diagram illustrating a known example 2.
１…電磁誘導タグ ２…アンテナコイル ３…樹脂容器 ４…半導体ＩＣチップ ５…磁性体や金属母材 ５ａ…表面 ６…空間 ６ａ…側壁面 ６ｂ…底壁面 ７…樹脂 ８…アンテナ ９…ビス Ｈ…磁界 DESCRIPTION OF SYMBOLS 1 ... Electromagnetic induction tag 2 ... Antenna coil 3 ... Resin container 4 ... Semiconductor IC chip 5 ... Magnetic substance or metal base material 5a ... Surface 6 ... Space 6a ... Side wall surface 6b ... Bottom wall surface 7 ... Resin 8 ... Antenna 9 ... Screw H …magnetic field
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｂ 5/02 Ｇ０６Ｋ 19/00 Ｈ (72)発明者 木田 茂 東京都新宿区西新宿１丁目22番２号 羽田 ヒューム管株式会社内 Ｆターム(参考） 2C005 MA19 MA22 MA25 MA35 NA09 NB03 NB05 NB14 5B035 AA00 BA04 BB09 CA01 CA23 5J046 AA07 AA12 AB11 QA02 5K012 AA03 AB03 AC06 BA02 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (Reference) H04B 5/02 G06K 19/00 H (72) Inventor Shigeru Kida 1-22-2 Nishishinjuku, Shinjuku-ku, Tokyo Haneda Hume F Co., Ltd. F term (reference) 2C005 MA19 MA22 MA25 MA35 NA09 NB03 NB05 NB14 5B035 AA00 BA04 BB09 CA01 CA23 5J046 AA07 AA12 AB11 QA02 5K012 AA03 AB03 AC06 BA02
Claims (3)
磁誘導タグを、磁性体または金属母材に設ける設置構造
であって、 前記電磁誘導タグは同心円盤状に形成されたアンテナコ
イルを有し、該アンテナコイルの磁性体側または金属母
材側の導電性の外表面と、これに対面する前記磁性体ま
たは金属母材の壁面との間の離間距離を１０μｍ以上、
且つ５mm以下に設定したことを特徴とする電磁誘導タグ
の設置構造。An installation structure in which an electromagnetic induction tag having an antenna coil and a control unit is provided on a magnetic material or a metal base material, wherein the electromagnetic induction tag has an antenna coil formed in a concentric disk shape. The distance between the conductive outer surface of the magnetic material side or the metal base material side of the antenna coil and the wall surface of the magnetic material or the metal base material facing the outer surface is 10 μm or more,
The installation structure of the electromagnetic induction tag, characterized in that it is set to 5 mm or less.
属母材の表面に設けられたことを特徴とする請求項１に
記載の電磁誘導タグの設置構造。2. The installation structure of claim 1, wherein the electromagnetic induction tag is provided on a surface of the magnetic material or the metal base material.
属母材に設けた表面側が開放された空間内に埋設された
ことを特徴とする請求項１または請求項２に記載の電磁
誘導タグの設置構造。3. The electromagnetic induction tag according to claim 1, wherein the electromagnetic induction tag is buried in a space provided on the magnetic body or the metal base material and having an open front side. Installation structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000223313A JP2002042096A (en) | 2000-07-25 | 2000-07-25 | Setting structure for electromagnetic induction tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000223313A JP2002042096A (en) | 2000-07-25 | 2000-07-25 | Setting structure for electromagnetic induction tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002042096A true JP2002042096A (en) | 2002-02-08 |
Family
ID=18717426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000223313A Pending JP2002042096A (en) | 2000-07-25 | 2000-07-25 | Setting structure for electromagnetic induction tag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002042096A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004263724A (en) * | 2003-02-14 | 2004-09-24 | Ntn Corp | Machine parts using ic tag |
| JP2005078114A (en) * | 2003-08-29 | 2005-03-24 | Dainippon Printing Co Ltd | Non-contact type data carrier |
| JP2014080850A (en) * | 2012-09-28 | 2014-05-08 | Inoue Research Office | Manhole cover incorporated with ic tag and ic tag for manhole cover |
| KR101751880B1 (en) * | 2016-04-04 | 2017-07-06 | 김지훈 | Laying method of ring Tag for Road-guide on the road |
-
2000
- 2000-07-25 JP JP2000223313A patent/JP2002042096A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004263724A (en) * | 2003-02-14 | 2004-09-24 | Ntn Corp | Machine parts using ic tag |
| JP2005078114A (en) * | 2003-08-29 | 2005-03-24 | Dainippon Printing Co Ltd | Non-contact type data carrier |
| JP2014080850A (en) * | 2012-09-28 | 2014-05-08 | Inoue Research Office | Manhole cover incorporated with ic tag and ic tag for manhole cover |
| JP2014134099A (en) * | 2012-09-28 | 2014-07-24 | Inoue Research Office | Ic tag-embedded manhole cover and ic tag for the cover |
| KR101751880B1 (en) * | 2016-04-04 | 2017-07-06 | 김지훈 | Laying method of ring Tag for Road-guide on the road |
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