JPH0746164A - Magnetic communication equipment - Google Patents

Magnetic communication equipment

Info

Publication number
JPH0746164A
JPH0746164A JP20463193A JP20463193A JPH0746164A JP H0746164 A JPH0746164 A JP H0746164A JP 20463193 A JP20463193 A JP 20463193A JP 20463193 A JP20463193 A JP 20463193A JP H0746164 A JPH0746164 A JP H0746164A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
coil
fixed coil
fixed
plate
magnetic
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
JP20463193A
Other languages
Japanese (ja)
Inventor
Yukio Hotta
幸雄 堀田
Original Assignee
Tokin Corp
株式会社トーキン
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

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01F2038/143Inductive couplings for signals

Abstract

PURPOSE:To prevent the Q of a fixed coil arranged closely to a metallic member in magentic communication equipment comprised of a moving coil and the fixed coil. CONSTITUTION:A magnetic plate 5 is arranged on a side opposite to a side where the fixed coil 6 is provided confronting with the moving coil 8 and the two-way communication of information is performed. The magnetic plate 5 is formed in the same size or larger than that of the plane of the fixed coil 6, and the center of it is located on the axis of the fixed coil 6, and it is located between a metallic plate, for example, a shield cabinet plate on the back wall 4 of the fixed coil. The magentic plate 5 is formed in such a way that the magnetic field of the fixed coil 6 is prevented from arriving at the metallic plate on the back wall 4, and eddy current loss generated on the metallic plate can dissipate. In this way, it is possible to keep the sensitivity of information transmission constant and to improve reliability for the equipment.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、磁場を利用した非接触で情報を伝送する装置で、より詳しくは固定コイルと移動コイルとを有する磁気通信装置における固定コイル周辺の構造に関するものである。 The present invention relates to a an apparatus for transmitting information in a non-contact using a magnetic field, and more particularly, to a structure fixed around the coil in the magnetic communication apparatus having a fixed coil and a moving coil.

【0002】 [0002]

【従来の技術】送受信用コイルの片方が固定されており、他方の送受信コイルが移動する非接触情報伝送装置は、スキー場リフトの自動改札装置や自動列車停止装置などに実用されている。 And one of the Related Art transceiver coil is fixed, the non-contact information transmission apparatus and the other receiving coil moves, has been practically in an automatic ticket gate apparatus and automatic train stop ski lifts.

【0003】リフトの自動改札装置は、乗り場の改札口に固定コイルを含む検札装置を設置して、移動コイルを収納したカード状利用券を利用者が購入し、利用者がカード状利用券を所持して検札装置を通過すると、固定コイルが検札装置内の対向位置を通る移動コイルにより、 [0003] The automatic ticket gate apparatus of the lift, installed a ticket inspector device includes a stationary coil to the entrance gate of the hall, the card-like voucher accommodating the movement coil purchased by the user, the user is a card-like vouchers When possession to pass through the ticket inspector apparatus, the moving coil is fixed coil through the position facing the ticket inspector device,
瞬時に、乗車券の種別、日時、利用回数などの双方向の情報伝送を行い、検札装置の制御回路が券情報により各種の信号を発令し、戸の開放、警報表示などを行うように構成されている。 Instantly, the ticket type, date and time, performs bidirectional information transmission, such as number of uses, the control circuit is issued various signals by ticket information ticket inspector device, configured to perform opening of the door, and alarm display It is.

【0004】自動列車停止装置は、運転士が信号を見落とし、列車が危険な状態になるのを防ぐために、赤信号や制限速度超過時には車上に警報を与え、無視されたときは非常ブレーキをかける設備である。 [0004] The automatic train stop, the train driver has overlooked a signal, in order to prevent the train from becoming a dangerous situation, given the alarm on the car at the time of red light and speed limit exceeded, the emergency brake when it was ignored is a facility to apply.

【0005】図3は、車上に情報を与える構成の一例を示す原理図である。 [0005] Figure 3 is a principle diagram showing an example of a configuration that gives information on the car. 地上子1は、レール間に設置した共振回路であり、固定コイル2を有している。 Balise 1 is a resonant circuit which is placed between the rails, and a stationary coil 2. 車上子3 Board coil 3
は、車上に備えた発振器である。 Is an oscillator which is provided on the car. 信号条件により地上子1のコンデンサを切り換えて、車上子3が地上子1の上を通過したときだけ、車上の発振周波数が地上子1の共振周波数に引き込まれることを利用し、地上子1の共振周波数を選択検知して自動列車停止装置の制御装置にトリガを与える点制御式と呼ばれる構成である。 By switching the capacitor ground coil 1 by the signal condition, only when the pickup coil 3 passes over the balise 1, utilizing the fact that the oscillation frequency of the car is drawn to the resonance frequency of the ground unit 1, a ground coil the first resonance frequency selective detection to a structure called a control unit control point to trigger the expression of the automatic train stop.

【0006】 [0006]

【発明が解決しようとする課題】この様な磁気通信装置の固定コイルは、その軸方向の片側で移動コイルに一定の間隔を置いて対向して情報の送受を行っている。 Fixed coil of the invention It is an object of such magnetic communication apparatus it performs transmission and reception of information so as to face at regular intervals in the moving coil on one side in the axial direction. 固定コイルの軸方向の他方側に金属部材が近接して存在する場合、固定コイルの磁界による渦電流が金属部材に流れて固定コイルのQが低下し、受信アンテナとしての固定コイルの感度が低下する。 When the metal member in the other axial side of the fixed coil are in close proximity, the eddy current due to the magnetic field of the fixed coil decreases the Q of the fixed coil flows to the metal member, the sensitivity of the fixed coil of the receiving antenna is reduced to. そのために情報の伝送を正しく行えないことがあった。 There is an inability to perform the transmission of the information correctly for that.

【0007】本発明の目的は、固定コイルの近傍に対向して存在する金属部材が、固定コイルのQの低下を招くことを解消した磁気通信装置を提供することにある。 An object of the present invention, the metal member present in opposition to the vicinity of the fixed coil is to provide a magnetic communication device which overcomes that lowers the Q of the fixed coil.

【0008】 [0008]

【課題を解決するための手段】本発明に係る磁気通信装置は、固定コイルの主面以上の面積をもつ磁性板を、固定コイルの軸方向の、移動コイルに対向する側の反対側に、中心が固定コイルの軸線上にあるように、固定コイルと固定コイルに対向する金属部材との間に配置したことを特徴とする。 Magnetic communication apparatus according to the present invention SUMMARY OF THE INVENTION are the magnetic plate having a main surface over the area of ​​the fixed coil, the axial direction of the fixed coil, the side opposite to the side facing the moving coil, center such that on the axis of the stationary coil, characterized in that disposed between the metallic member facing the fixed coil and the fixed coil.

【0009】即ち本発明は、所定個所に設置した固定コイルの軸方向の片側で、移動体に備えた移動コイルが固定コイルと間隔を置いて固定コイルに対向して情報の双方向伝送を行う磁気通信装置において、固定コイルの主面以上の大きさの磁性板を、固定コイルの移動コイルに対面する反対側に、中心を固定コイルの軸線上にして固定コイルと固定コイルに対面する金属部材との間に配置して、固定コイルと金属部材との磁気的結合を遮断するように構成したことを特徴とする磁気通信装置である。 [0009] The present invention is in the axial direction on one side of the fixed coil installed in a predetermined position, performs the bidirectional transmission of information to face the fixed coil moving coil with the moving body at a fixed coil and spacing in the magnetic communication device, the magnetic plate of the main surface than the size of the fixed coil, on the opposite side facing the moving coil of the stationary coil, a metal member facing the the fixed coil fixed coil and centered on the axis of the stationary coil disposed between a magnetic communication apparatus characterized by being configured to block magnetic coupling between the stationary coil and the metal member.

【0010】 [0010]

【作用】磁性板は、固定コイルに近接して存在する金属部材と固定コイルとの磁気的結合を遮断して、移動コイルが通過する際の交流信号による金属部材に渦電流が流れることを防止し、渦電流損による固定コイルのQの低下を防ぐ。 [Action] magnetic plate prevents blocking the magnetic coupling between the metal member in close proximity to the fixed coil and the fixed coil, eddy currents in the metal member by the AC signal when the moving coil passes flows to prevent a reduction in the Q of the fixed coil due to eddy current loss. 磁性板は、また、外部からの磁界が固定コイルに及ぼす影響を小さくする。 Magnetic plate is also to reduce the influence of an external magnetic field is on the stationary coil.

【0011】 [0011]

【実施例】図1に示す実施例は、リフト乗り場の検札装置要部の斜視図である。 EXAMPLE shown in FIG. 1 is a perspective view of a ticket inspector apparatus main portion of the lift station. 乗り場に設置した検札装置の金属製シールド筐体(以下、筐体と称す)の背壁の内面に軟磁気特性を有するフェライト板からなる磁性板5を固着している。 Metal shield housing of the installed ticket inspector apparatus landing (hereinafter referred to as housing) are fixed to the magnetic plate 5 made of ferrite plate having a soft magnetic characteristics on the inner surface of the rear wall of. 筐体は図において左手前が開口した箱形(図は背壁4と側壁との一部を示す)である。 Housing is the left front in FIG an open ended box-shaped (figure shows a portion of a back wall 4 and the side wall). 筐体内に扁平な固定コイル6が方形主面を背壁4と平行にして背壁4から離間して配置されている。 Flat stationary coil 6 in the housing are spaced from the rear wall 4 into parallel rectangular main surface back wall 4. 磁性板5は、中心が固定コイル6の軸線上にあり、固定コイル6に対向させて背壁4に固着する。 Magnetic plate 5 is centered located on the axis of the fixed coil 6, to face the stationary coil 6 is fixed to the rear wall 4.

【0012】乗車券7に内臓した移動コイル8が固定コイル6に対向できるように、筐体の開口側に筐体から離して断面U字形の浅い券走行路9を、背壁4と平行に、 [0012] As mobile coil 8 that is built into ticket 7 can be opposed to the fixed coil 6, a shallow flights running path 9 of a U-shaped cross section away from the housing on the opening side of the housing, parallel to the back wall 4 ,
かつ水平に配置してある。 And it is arranged horizontally.

【0013】図3における地上子1が、鉄橋梁10上に設置された場合を、地上子1の要部を縦断して、第2の実施例として図2に示す。 [0013] balise 1 in FIG. 3, a case where it is placed on an iron bridge 10, and longitudinal main portions of the ground element 1, shown in FIG. 2 as a second embodiment.

【0014】地上子1は、底部が肉厚である樹脂製密閉容器11の内底の凹部に例えば複数個のフェライトタイルからなる磁性板12を敷き詰めて、磁性板12の中央部に磁性板12よりも一回り小さな扁平な固定コイル2 [0014] the ground coil 1, the bottom is paved with magnetic plate 12 in the recess of the inner bottom of the resin sealed container 11 comprising a plurality of ferrite tiles for example, which is a thick, magnetic plate 12 in the central portion of the magnetic plate 12 slightly larger than a small flat fixed coil 2
(簡略に図示)を寝かせて載設している。 It is No設 flat using (briefly shown).

【0015】なお磁性板に使用する磁性材には、金属系、酸化金属系、非晶質系あるいは金属磁性微粉末からなる圧粉磁性材等があるが、使用する信号の周波数に応じ適宜選定する。 [0015] Note that the magnetic material used in the magnetic plate, metallic, metal oxide-based, there is a powder magnetic material such consisting of amorphous-based or metal magnetic fine powder, suitably selected according to the frequency of the signal used to.

【0016】 [0016]

【発明の効果】固定コイルと、金属製筐体や、鉄橋梁などに近接して対向した金属部材との間に、固定コイルの主面以上の大きさの磁性板を、固定コイルの周辺を磁気遮蔽するように配置することにより、固定コイルと金属部材の磁気的な結合を絶ち、固定コイルと金属部材との間に固定コイルの主面以上の大きさの磁性板を配置することにより、金属部材に流れる渦電流を阻止し、渦電流損をなくして固定コイルのQの低下を防ぐことができ、 Effect of the Invention and the fixed coil, and the metal housing, in proximity like iron bridges between the opposed metal member, the magnetic plate of the main surface than the size of the fixed coil, the periphery of the stationary coil by arranging so that a magnetic shield, by cut off magnetic coupling between the stationary coil and the metal member, placing the magnetic plate of the main surface than a size of the stationary coil between the stationary coil and the metal member, prevent eddy currents flowing in the metal member, it is possible to prevent a reduction in Q of the fixed coil to eliminate the eddy current loss,
装置の正常な動作を維持でき、装置の信頼性を向上する。 It can maintain normal operation of the apparatus, improving the reliability of the device. 磁性板は、外部からの擾乱磁界に対する防護板にもなり、伝送装置の誤動作の防止にも有効である。 Magnetic plate also becomes protective plate for noise fields from the outside, it is also effective in preventing erroneous operation of the transmission device.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】図1は、本発明の一実施例を示す改札装置の要部斜視図である。 FIG. 1 is a perspective view of a main portion of a ticket gate apparatus according to an embodiment of the present invention.

【図2】図2は、本発明の他の実施例を示す、自動列車停止装置の地上子の要部縦断面図である。 Figure 2 shows another embodiment of the present invention, an essential part longitudinal cross sectional view of the ground coil of the automatic train stop.

【図3】図3は、自動列車停止装置の情報伝送の構成の一例を示す原理図である。 Figure 3 is a principle diagram showing an example of a configuration of an information transmission automatic train stop.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 地上子 2、6 固定コイル 3 車上子 4 背壁 5、12 磁性板 7 乗車券 8 移動コイル 9 券走行路 10 鉄橋梁 11 樹脂性密閉容器 1 balise 2,6 fixed coil 3 board coil 4 back wall 5,12 magnetic plate 7 tickets 8 moving coil 9 flights traveling path 10 iron bridges 11 resin tight container

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 所定個所に設置した固定コイルの軸方向の片側で、移動体に備えた移動コイルが固定コイルと間隔を置いて固定コイルに対向して情報の双方向伝送を行う磁気通信装置において、固定コイルの主面以上の大きさの磁性板を、固定コイルの移動コイルに対面する反対側に、中心を固定コイルの軸線上にして固定コイルと固定コイルに対面する金属部材との間に配置して、固定コイルと金属部材との磁気的結合を遮断するように構成したことを特徴とする磁気通信装置。 1. A in the axial direction on one side of the fixed coil installed in a predetermined position, the magnetic communication device moving coil with the moving body perform bidirectional transmission of information to face the stationary coil at a fixed coil and spacing in between the magnetic plate of the main surface than the size of the fixed coil, on the opposite side facing the moving coil of the stationary coil, a metal member facing the fixed coil and the fixed coil and centered on the axis of the stationary coil It is placed, magnetic communication device characterized by being configured to block magnetic coupling between the stationary coil and the metal member.
JP20463193A 1993-07-26 1993-07-26 Magnetic communication equipment Pending JPH0746164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20463193A JPH0746164A (en) 1993-07-26 1993-07-26 Magnetic communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20463193A JPH0746164A (en) 1993-07-26 1993-07-26 Magnetic communication equipment

Publications (1)

Publication Number Publication Date
JPH0746164A true true JPH0746164A (en) 1995-02-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP20463193A Pending JPH0746164A (en) 1993-07-26 1993-07-26 Magnetic communication equipment

Country Status (1)

Country Link
JP (1) JPH0746164A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000002212A1 (en) * 1998-07-06 2000-01-13 Abiomed, Inc. Magnetic shield for primary coil of transcutaneous energy transfer device
US6324431B1 (en) 1998-07-06 2001-11-27 Abiomed, Inc. Transcutaneous energy transfer device with magnetic field protected components in secondary coil
US6324430B1 (en) 1998-07-06 2001-11-27 Abiomed, Inc. Magnetic shield for primary coil of transcutaneous energy transfer device
WO2008018211A1 (en) * 2006-08-07 2008-02-14 Sony Chemical & Information Device Corporation Magnetic sheet, antenna device, and method for manufacturing antenna device
JP2010093180A (en) * 2008-10-10 2010-04-22 Showa Aircraft Ind Co Ltd Non-contact power supply
US8862232B2 (en) 1998-07-06 2014-10-14 Abiomed, Inc. Transcutaneous energy transfer module with integrated conversion circuitry
US9002468B2 (en) 2011-12-16 2015-04-07 Abiomed, Inc. Automatic power regulation for transcutaneous energy transfer charging system
US9002469B2 (en) 2010-12-20 2015-04-07 Abiomed, Inc. Transcutaneous energy transfer system with multiple secondary coils
US9220826B2 (en) 2010-12-20 2015-12-29 Abiomed, Inc. Method and apparatus for accurately tracking available charge in a transcutaneous energy transfer system
US9412513B2 (en) 2012-03-30 2016-08-09 Tdk Corporation Wireless power transmission system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000002212A1 (en) * 1998-07-06 2000-01-13 Abiomed, Inc. Magnetic shield for primary coil of transcutaneous energy transfer device
US6324431B1 (en) 1998-07-06 2001-11-27 Abiomed, Inc. Transcutaneous energy transfer device with magnetic field protected components in secondary coil
US6324430B1 (en) 1998-07-06 2001-11-27 Abiomed, Inc. Magnetic shield for primary coil of transcutaneous energy transfer device
US6389318B1 (en) 1998-07-06 2002-05-14 Abiomed, Inc. Magnetic shield for primary coil of transcutaneous energy transfer device
US6496733B2 (en) 1998-07-06 2002-12-17 Abiomed, Inc. Transcutaneous energy transfer device with magnetic field protected components in secondary coil
US8862232B2 (en) 1998-07-06 2014-10-14 Abiomed, Inc. Transcutaneous energy transfer module with integrated conversion circuitry
WO2008018211A1 (en) * 2006-08-07 2008-02-14 Sony Chemical & Information Device Corporation Magnetic sheet, antenna device, and method for manufacturing antenna device
JP2010093180A (en) * 2008-10-10 2010-04-22 Showa Aircraft Ind Co Ltd Non-contact power supply
US9002469B2 (en) 2010-12-20 2015-04-07 Abiomed, Inc. Transcutaneous energy transfer system with multiple secondary coils
US9220826B2 (en) 2010-12-20 2015-12-29 Abiomed, Inc. Method and apparatus for accurately tracking available charge in a transcutaneous energy transfer system
US9002468B2 (en) 2011-12-16 2015-04-07 Abiomed, Inc. Automatic power regulation for transcutaneous energy transfer charging system
US9412513B2 (en) 2012-03-30 2016-08-09 Tdk Corporation Wireless power transmission system

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