JPS60227406A - Connecting device for electronic or electric circuit - Google Patents

Connecting device for electronic or electric circuit

Info

Publication number
JPS60227406A
JPS60227406A JP59084947A JP8494784A JPS60227406A JP S60227406 A JPS60227406 A JP S60227406A JP 59084947 A JP59084947 A JP 59084947A JP 8494784 A JP8494784 A JP 8494784A JP S60227406 A JPS60227406 A JP S60227406A
Authority
JP
Japan
Prior art keywords
coil
substance
electronic
signal
power
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
Application number
JP59084947A
Other languages
Japanese (ja)
Inventor
Shinji Oki
大木 信二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON LSI KAADE KK
Original Assignee
NIPPON LSI KAADE KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON LSI KAADE KK filed Critical NIPPON LSI KAADE KK
Priority to JP59084947A priority Critical patent/JPS60227406A/en
Publication of JPS60227406A publication Critical patent/JPS60227406A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10336Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14Inductive couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

PURPOSE:To ensure the transmission of a power or a signal to a substance to be connected, by a construction wherein a connecting substance is formed to have a U- shaped section, a coil is embedded in the upper and lower sides thereof, and the substance to be connected is inserted into said U-shaped portion, so that the power or the signal can be induced in this substance by electromagnetic induction. CONSTITUTION:A circuit 3, a coil 4 connected thereto, etc. are embedded in a base 2 formed of an insulating material such as synthetic resin, so as to prepare a substance 1 to be connected, such as an IC card or an electronic substrate. A connecting substance 5 to be coupled to said substance, on the other hand, is prepared to have a U- shaped section by using synthetic resin likewise, a coil 7 is embedded in the upper and lower portions of the main body 6 of the substance 5 respectively, and a coil lead 8 for the application of voltage is led out therefrom. When the substance 1 to be connected and the connecting substance 5 are coupled to each other, in this construction, the substance 1 is inserted into the U-shaped portion, so that a power or an electric signal can be generated in the coil 4 of the substance 1 by electromagenetic induction, and then the power or the signal thus generated is detected. According to this construction or the like occurs, since there is no connecting element or the like in the construction.

Description

【発明の詳細な説明】 本発明はシートその他の基体に設けられた電子または電
気回路を、他の電子または電気回路と非接触で接続する
接続装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connection device for connecting electronic or electric circuits provided on a sheet or other substrate to other electronic or electric circuits without contact.

データを記録する媒体として、シートの表面に磁性膜が
塗布されたものが各種の用途に多く使用されているが、
これは強い磁力が作用したり、磁性膜に摩損やきすが生
じるとデータが破壊されるなどの各種の問題が発生して
いる。したがって、薄膜上などに構成された集積回路(
以下ICという)をシートなどの基体に取付けた、たと
えばICカードと称されるものがあるが、そのICに対
するデータの入力または出力あるいは電圧の印加は、カ
ードの一部に表出させたターミナルに、他の電子機器の
接点を機械的に接触させることで行っている。したがっ
て、カードのターミナルに異物が付着したり、ターミナ
ルが化学変化などで変質すると、導通不良となり、デー
タの授受が不能になるなどの問題が発生するから、IC
カードはその取扱いに注意を要している。このような問
題はICカードに限らず、電子または電気機器でも、そ
れらの基板の接点の接触不良によって機器の作動が不能
になる問題が発生している。
As media for recording data, sheets with magnetic films coated on the surface are often used for various purposes.
This has caused various problems such as data being destroyed if a strong magnetic force acts on them or if the magnetic film becomes abraded or scratched. Therefore, integrated circuits (
For example, there are devices called IC cards that have an IC (hereinafter referred to as an IC) attached to a base such as a sheet, but data input or output or voltage application to the IC is done through a terminal exposed on a part of the card. This is done by mechanically contacting the contacts of other electronic devices. Therefore, if foreign matter adheres to the card's terminal or the terminal deteriorates due to chemical changes, problems such as poor continuity and the inability to send and receive data will occur.
Cards require careful handling. Such problems are not limited to IC cards, but also occur in electronic or electrical equipment, where poor contact between the contacts of the substrates makes the equipment inoperable.

本発明は、ICカードや電子または電気機器の基板など
の基体のターミナルの接続を非接触とすることで接触不
良による問題を解決することを目的とする。
An object of the present invention is to solve problems caused by poor contact by connecting terminals of a substrate such as an IC card or a board of an electronic or electric device in a non-contact manner.

本発明は接続体と電子または電気回路を備えた被接続体
のそれぞれがコイルを有し、かつ被接続体の前記回路に
接続され、接続体のコイルが形成した磁束内に被接続体
のコイル部を挿入して、被接続体のコイルに電力または
電気信号を誘起させることを特徴とする。
In the present invention, each of the connecting body and the connected body having an electronic or electric circuit has a coil, and the coil of the connected body is connected to the circuit of the connected body, and the coil of the connected body is included in the magnetic flux formed by the coil of the connecting body. It is characterized by inserting a section to induce electric power or an electric signal in the coil of the connected object.

本発明の装置の実施例を図面について説明すると、1は
ICカード、電子または電気機器の基板などの被接続体
で、合成樹脂その他の絶縁材料からなる基体2の内部に
埋め込まれた電子または電気回路3を有している。4は
基体2内に埋め込み状態に設けたコイルで、その両端が
回路3に接続されている。
An embodiment of the device of the present invention will be described with reference to the drawings. Reference numeral 1 denotes an object to be connected such as an IC card or a board of an electronic or electric device, and an electronic or electrical device embedded inside a base body 2 made of synthetic resin or other insulating material. It has a circuit 3. A coil 4 is embedded in the base 2, and both ends thereof are connected to the circuit 3.

5は接続体で、これは合成樹脂などで断面コ字状に形成
された本体6の両対向壁内のそれぞれに、互いに接続さ
れたコイル7を埋め込んで構成され、かつ本体6の両射
向壁間に基体2を挿入しうる間隔がおかれている。8は
コイル7のリード部で、これに電圧を印加することが可
能になっている。
Reference numeral 5 denotes a connecting body, which is constructed by embedding coils 7 connected to each other in both opposing walls of a main body 6 formed of synthetic resin or the like and having a U-shaped cross section. A space is provided between the walls so that the base body 2 can be inserted. Reference numeral 8 denotes a lead portion of the coil 7, to which a voltage can be applied.

そして、接続体5は、被接続体1がICカードなどのよ
うにデータが格納されたものであるときは、そのデータ
の読取装置に取付けられ、被接続体1が基板のときは、
電子または電気機器のケースなどに取付けられる。
When the connected object 1 stores data such as an IC card, the connecting body 5 is attached to a data reading device, and when the connected object 1 is a board,
It can be attached to the case of electronic or electrical equipment.

被接続体1のコイル4は、たとえば、電力供給用と信号
の取出し用などと所要数を別々に設けることはもちろん
であり、かつ接続体5におけるコイル7もコイル4の数
に応じて所要数を設ける。
Of course, the required number of coils 4 of the connected body 1 are provided separately for power supply and signal extraction, for example, and the required number of coils 7 of the connected body 5 is also provided according to the number of coils 4. will be established.

基体2の回路3とコイル4は、第6図のように、基体2
の表面に設けることも可能である。そして、接続体5は
、第7図のように、その本体6を鉄心で構成し、その一
部にコイル7を巻き付けるなど任意で、本体6の形状お
よびコイル7の取付は位置について、コイル7で形成す
る磁束内に、それを切る状態にして被接続体1を挿入可
能にすればたりる。基体2は板状のみに限定することは
不要で、その用途に応じて任意の形状になしうる。
The circuit 3 and coil 4 of the base 2 are connected to the base 2 as shown in FIG.
It is also possible to provide it on the surface of. As shown in FIG. 7, the connecting body 5 has a main body 6 made of an iron core, and a coil 7 is wound around a part of the core. This can be achieved by breaking the magnetic flux and making it possible to insert the connected body 1 into the magnetic flux formed by the magnetic flux. The base body 2 does not need to be limited to a plate shape, and can be formed into any shape depending on its use.

コイル4.7としてはシート状のコイルを使用すれば、
そのかさを小さくすることに対して適するが、金属線を
巻いたものも使用可能である。
If a sheet-shaped coil is used as coil 4.7,
Although it is suitable for reducing the bulk, it is also possible to use a wire wound with metal wire.

接続体5と被接続体lの接続は、リード部8からコイル
7に電圧を印加した状態で、被接続体1のコイル4の部
分を、第3図のように接続体50対向壁間に挿入する。
The connection between the connecting body 5 and the connected body l is made by applying a voltage from the lead part 8 to the coil 7, and moving the coil 4 part of the connected body 1 between the opposite walls of the connecting body 50 as shown in FIG. insert.

すなわち、接続体5のコイル7.7には電圧が印加され
、第8図に例示するように、コイル7.7を通過する方
向の磁束Φが流れているから、この磁束Φ内に、被接続
体1のコイル4が挿入される結果となり、コイル4には
電磁誘導の現象によって電流が流れ、それが回路3に印
加される。したがって、被接続体1の回路3に電気信号
を印加するときは、それに応じた電気信号をコイル7に
流すことによって、それをコイル4を介して回路3に印
加することが可能である。
That is, since a voltage is applied to the coil 7.7 of the connecting body 5 and a magnetic flux Φ is flowing in the direction passing through the coil 7.7 as illustrated in FIG. The result is that the coil 4 of the connecting body 1 is inserted, and a current flows through the coil 4 due to the phenomenon of electromagnetic induction, which is applied to the circuit 3. Therefore, when applying an electrical signal to the circuit 3 of the connected object 1, it is possible to apply the corresponding electrical signal to the circuit 3 via the coil 4 by flowing the corresponding electrical signal to the coil 7.

被接続体1に格納したデータを取出すときは、電力供給
用のコイル7.4を介して回路3に電圧を印加すれば、
信号取出し用のコイル4に流れた信号に対応して、コイ
ル7に電気信号が伝達されるから、必要なときに信号を
取出すこともできる。
When retrieving data stored in the connected object 1, voltage is applied to the circuit 3 via the power supply coil 7.4.
Since an electric signal is transmitted to the coil 7 in response to the signal flowing through the signal extraction coil 4, the signal can be extracted when necessary.

信号の人、出力はコイル4.7の系列を複数にすれば、
パラレルで行うことも可能である。
For the signal person, the output can be obtained by using multiple series of coils 4.7.
It is also possible to perform it in parallel.

この装置は上記のように、電子または電気機器に取付け
られる接続体5のコイル7が形成する磁束Φ内に、IC
カードや基板となる被接続体1に設けたコイル4を挿入
することで、コイル4に電磁誘導の現象で電力や電気信
号を誘起させるものであって、接続体5に対して被接続
体1を非接触で接続する。したがって、導体を機械的に
接触させる場合のように導通不良による問題の発生がな
く、常に確実に電力を供給したり、電気信号を伝達する
ことが可能である。
As described above, in this device, the IC
By inserting the coil 4 provided in the connected object 1, which is a card or board, the coil 4 induces electric power and electric signals by the phenomenon of electromagnetic induction, and the connected object 1 is connected to the connected object 5. Connect without contact. Therefore, there is no problem caused by poor conduction, which occurs when conductors are brought into mechanical contact, and it is possible to always reliably supply power and transmit electrical signals.

接続体5と被接続体1とを非接触で接続するから、被接
続体1のコイル4は、その全体を基体2内に第1図に示
すように埋め込むことも可能であり、ICカードのよう
に携帯されるものの場合には、回路3とコイル4などの
全体を基体2内に埋め込んでおけば、回路3を保護しう
る、とともに、コイル4の破損などを防いで、常に確実
にデータの授受を行うことができる。また、ICカード
の表面が汚染などしてもデータの授受には支障がないか
ら、カードの取扱いも容易である。
Since the connecting body 5 and the connected body 1 are connected without contact, the coil 4 of the connected body 1 can be entirely embedded in the base body 2 as shown in FIG. If the device is to be carried around, embedding the entire circuit 3, coil 4, etc. in the base 2 will protect the circuit 3, prevent damage to the coil 4, and ensure that data is always securely stored. can give and receive. Furthermore, even if the surface of the IC card becomes contaminated, there is no problem with data exchange, so the card is easy to handle.

接続体5は第2図に示したように断面コ字状とし、その
両対向壁にコイル7を設ければ、磁束Φは両対向壁を貫
通する状態で流れるから、複数のコイル7を並置するこ
とが容易である、とともに、その磁束Φ内に対するコイ
ル4の挿入を確実化しうるが、接続体5は第2図の一方
の対向壁のみにすることも可能で、接続体5の形状をコ
イル7の配置は任意である。
If the connecting body 5 has a U-shaped cross section as shown in FIG. 2, and the coils 7 are provided on both opposing walls, the magnetic flux Φ will flow through both opposing walls, so it is possible to arrange a plurality of coils 7 side by side. It is easy to do this, and the insertion of the coil 4 into the magnetic flux Φ can be ensured, but the connecting body 5 can also be formed only on one opposing wall as shown in FIG. 2, and the shape of the connecting body 5 can be The arrangement of the coil 7 is arbitrary.

本発明は接続体と被接続体のそれぞれにコイルを設け、
接続体のコイルが形成した磁束内に被接続体のコイルを
挿入して、電磁誘導の現象で、被接続体のコイルに電力
または電気信号を誘起させるから、導通不良の問題の発
生がなく、確実に電力や電気信号を伝達できる。そして
、被接続体がICカードのように携帯されるものの場合
には、その取扱いも容易にしうる。
The present invention provides a coil in each of the connecting body and the connected body,
The coil of the connected object is inserted into the magnetic flux formed by the coil of the connected object, and power or electrical signals are induced in the coil of the connected object by the phenomenon of electromagnetic induction, so there is no problem of poor continuity. It can reliably transmit power and electrical signals. Furthermore, when the object to be connected is something that is carried around, such as an IC card, it can be easily handled.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の実施例を示し、第1図は被接続体の斜視
図、第2図は接続体の斜視図、第3図は接続状態の正面
図、第4図は被接続体の要部の断面図、第5図は接続体
の要部の断面図、第6図は被接続体の他の例の斜視図、
第7図は接続体の他の例の側面図、第8図は磁束の状態
を示す正面図である。 1:被接続体、2:基体、3:回路、4:コイル、5:
接続体、6:本体、7:コイル、8:リード部。
The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of a connected object, FIG. 2 is a perspective view of a connected object, FIG. 3 is a front view of the connected object, and FIG. 4 is a main view of the connected object. FIG. 5 is a sectional view of the main part of the connecting body, FIG. 6 is a perspective view of another example of the connected body,
FIG. 7 is a side view of another example of the connecting body, and FIG. 8 is a front view showing the state of magnetic flux. 1: Connected object, 2: Base, 3: Circuit, 4: Coil, 5:
Connection body, 6: main body, 7: coil, 8: lead part.

Claims (3)

【特許請求の範囲】[Claims] (1)接続体と電子または電気回路を備えた被接続体と
のそれぞれがコイルを有し、かつ被接続体のコイルが電
子または電気回路に接続され、接続体のコイルに生じた
磁束内に被接続体のコイル部が挿入される電子または電
気回路の接続袋W。
(1) The connecting body and the connected body having an electronic or electric circuit each have a coil, and the coil of the connected body is connected to the electronic or electric circuit, and the magnetic flux generated in the coil of the connecting body A connection bag W for an electronic or electric circuit into which a coil portion of a connected object is inserted.
(2)被接続体がICカードである特許請求の範囲の記
載第1項の電子または電気回路の接続装置。
(2) The electronic or electric circuit connection device according to claim 1, wherein the object to be connected is an IC card.
(3)被接続体が電子または電気機器の基板である特許
請求の範囲の記載第1項の電子または電気回路の接続装
置。
(3) The connecting device for an electronic or electric circuit according to claim 1, wherein the object to be connected is a substrate of an electronic or electric device.
JP59084947A 1984-04-25 1984-04-25 Connecting device for electronic or electric circuit Pending JPS60227406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59084947A JPS60227406A (en) 1984-04-25 1984-04-25 Connecting device for electronic or electric circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59084947A JPS60227406A (en) 1984-04-25 1984-04-25 Connecting device for electronic or electric circuit

Publications (1)

Publication Number Publication Date
JPS60227406A true JPS60227406A (en) 1985-11-12

Family

ID=13844833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59084947A Pending JPS60227406A (en) 1984-04-25 1984-04-25 Connecting device for electronic or electric circuit

Country Status (1)

Country Link
JP (1) JPS60227406A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213397A (en) * 1985-07-11 1987-01-22 東京磁気印刷株式会社 Integrated circuit card
JPS6361390A (en) * 1986-09-02 1988-03-17 Aihon Kk Contactless connecting system for ic card or the like
JPH01117005A (en) * 1987-10-28 1989-05-09 Internatl Business Mach Corp <Ibm> Electric source system
WO1994022111A1 (en) * 1993-03-17 1994-09-29 Droz Francois Method for producing a card with at least one electronic component
EP0820073A1 (en) * 1996-07-15 1998-01-21 Delco Electronics Corporation Inductive coupler assembly and having its primary winding formed in a printed wiring board
US5879502A (en) * 1994-05-27 1999-03-09 Gustafson; Ake Method for making an electronic module and electronic module obtained according to the method
EP1396454A1 (en) * 2001-05-30 2004-03-10 Hitachi, Ltd. Movable body system
CN105958594A (en) * 2016-06-17 2016-09-21 中国矿业大学(北京) Inductively coupled power transmission-based mining electric locomotive charging system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722325A (en) * 1980-07-11 1982-02-05 Hitachi Cable Method of supplying power to high potential system
JPS60211582A (en) * 1984-04-06 1985-10-23 Nippon Telegr & Teleph Corp <Ntt> Ic card connecting system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722325A (en) * 1980-07-11 1982-02-05 Hitachi Cable Method of supplying power to high potential system
JPS60211582A (en) * 1984-04-06 1985-10-23 Nippon Telegr & Teleph Corp <Ntt> Ic card connecting system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213397A (en) * 1985-07-11 1987-01-22 東京磁気印刷株式会社 Integrated circuit card
JPS6361390A (en) * 1986-09-02 1988-03-17 Aihon Kk Contactless connecting system for ic card or the like
JPH01117005A (en) * 1987-10-28 1989-05-09 Internatl Business Mach Corp <Ibm> Electric source system
JPH0642430B2 (en) * 1987-10-28 1994-06-01 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン Power supply
WO1994022111A1 (en) * 1993-03-17 1994-09-29 Droz Francois Method for producing a card with at least one electronic component
FR2703490A1 (en) * 1993-03-17 1994-10-07 Droz Francois Process for manufacturing a card comprising at least one electronic element
US5879502A (en) * 1994-05-27 1999-03-09 Gustafson; Ake Method for making an electronic module and electronic module obtained according to the method
EP0820073A1 (en) * 1996-07-15 1998-01-21 Delco Electronics Corporation Inductive coupler assembly and having its primary winding formed in a printed wiring board
JPH1094181A (en) * 1996-07-15 1998-04-10 Delco Electron Corp Inductive coupler assembly having primary winding made on printed wiring board
EP1396454A1 (en) * 2001-05-30 2004-03-10 Hitachi, Ltd. Movable body system
EP1396454A4 (en) * 2001-05-30 2008-11-05 Hitachi Ltd Movable body system
CN105958594A (en) * 2016-06-17 2016-09-21 中国矿业大学(北京) Inductively coupled power transmission-based mining electric locomotive charging system and method

Similar Documents

Publication Publication Date Title
JP2962580B2 (en) Chip card module and circuit device having coil connected thereto
EP0294966A2 (en) Autoregulating multi contact heater
TW512367B (en) Wiring boards and processes for manufacturing wiring boards
JPS60227406A (en) Connecting device for electronic or electric circuit
ATE254342T1 (en) ELECTRICAL CONTACTING DEVICE FOR CONNECTING ELECTRICAL COMPONENTS
AU703461B2 (en) A wave pickup in the form of a printed coil for an electronic portable object such as a no-contact card or badge
US3958155A (en) Packaged magnetic domain device having integral bias and switching magnetic field means
JP2586599Y2 (en) Impedance element
EP0212020B1 (en) Data processing card system and method of forming same
JPS6230101Y2 (en)
GB2265013A (en) Coil system for vibrating sample magnetometer
TW388112B (en) Semiconductor device and module
JPH0554155B2 (en)
JPS6196681A (en) Printed circuit board connector
JPH0548511B2 (en)
JPH09246063A (en) Thin transformer
JPH0836626A (en) Electronic card device
JPS63113791A (en) Thin film electromagnetic transducer
JPS63242595A (en) Thin-film electromagnetic converter
JPS62281710A (en) Clamp for transmission and distribution lines
JPS63193893A (en) Thin-film electromagnetic transducer
JPH04105512U (en) Laminated sheet coil device
JPS6258526A (en) Transfer type lead switch
JPS6140093A (en) Device for coupling flexible cable to circuit board
JPS6357294A (en) Thin-film electromagnetic converter and signal transmission and reception method thereof