DE102006044057A1 - Wireless power supply system for multiple electronic devices e.g. sensors, actuators has at least one field reinforcement or deflection unit that is brought into magnetic field such that resonance is adjusted - Google Patents

Wireless power supply system for multiple electronic devices e.g. sensors, actuators has at least one field reinforcement or deflection unit that is brought into magnetic field such that resonance is adjusted

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Publication number
DE102006044057A1
DE102006044057A1 DE102006044057A DE102006044057A DE102006044057A1 DE 102006044057 A1 DE102006044057 A1 DE 102006044057A1 DE 102006044057 A DE102006044057 A DE 102006044057A DE 102006044057 A DE102006044057 A DE 102006044057A DE 102006044057 A1 DE102006044057 A1 DE 102006044057A1
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Germany
Prior art keywords
field
magnetic field
feldverstärkungs
deflection unit
resonance
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DE102006044057A
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German (de)
Inventor
Berthold Dipl.-Ing. Dilger
Rolf Dr. Disselnkötter
Jean Dr.-Ing. Schutz
Richard Dipl.-Ing. Steigmann
Christian Dipl.-Ing. Willmes
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ABB Patent GmbH
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ABB Patent GmbH
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Priority to DE102006044057A priority Critical patent/DE102006044057A1/en
Publication of DE102006044057A1 publication Critical patent/DE102006044057A1/en
Application status is Withdrawn legal-status Critical

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J17/00Systems for supplying or distributing electric power by electromagnetic waves
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Abstract

An MF oscillator drives a primary winding to produce a magnetic field for wireless power supply to devices connected to a secondary winding. At least one field reinforcement or deflection unit (4) is brought into the magnetic field at a desired angle of inclination such that the field reinforcement or deflection unit is adjusted in resonance by the magnetic field. An auxiliary field produced over the resulting high resonance current increases a field range and the available field strength.

Description

  • Die Erfindung bezieht sich auf ein System zur drahtlosen Versorgung einer Vielzahl von Sensoren und/oder Aktoren und/oder anderer Elektronik gemäß dem Oberbegriff des Anspruchs 1. The invention relates to a system for wireless power to a plurality of sensors and / or actuators and / or other electronics according to the preamble of claim 1.
  • Aus der From the DE 199 26 799 A1 DE 199 26 799 A1 sind ein Verfahren respektive eine Anordnung respektive ein System zur drahtlosen Versorgung einer Vielzahl von Näherungssensoren (z. B. an einer Maschine, insbesondere Fertigungsautomat montiert) bekannt, are respectively a method, an arrangement, respectively, a system for wireless power to a plurality of proximity sensors (z. B. on a machine, in particular an automated production machine is mounted) is known,
    • – wobei mindestens eine von einem mittelfrequenten Oszillator gespeiste Primärwicklung vorgesehen ist, welche ein mittelfrequentes Magnetfeld erzeugt, um derart Näherungssensoren drahtlos mit elektrischer Energie zu versorgen (Primärfeld), - wherein a is fed by a medium frequency oscillator primary winding is provided at least, which generates a magnetic field Transmission Ratio for Medium to such proximity sensors wirelessly with electrical energy to supply (primary field),
    • – wobei jeder Näherungssensor mindestens eine zur Energieaufnahme aus dem mittelfrequenten Magnetfeld geeignete Sekundärwicklung aufweist, - each proximity sensor has at least one energy absorption from the medium-frequency magnetic field suitable secondary winding,
    • – wobei jeder Näherungssensor mit einer Sendeeinrichtung ausgestattet ist, welche interessierende Sensor-Informationen beinhaltende Funksignale an eine zentrale, mit einem Prozessrechner der Maschine verbundene Empfangseinrichtung abgibt. - each proximity sensor is equipped with a transmitting device which emits interest sensor information-containing radio signals to a central, connected to a process computer of the machine receiving device.
  • Für die Erzeugung des Magnetfeldes (Primärfeld) dienen zwei oder drei orthogonal zueinander angeordnete Primärwicklungen. two or three mutually orthogonal primary coils serve for generating the magnetic field (the primary field). Zusätzlich kann zur Realisierung einer „Spot- Wirkung" mindestens eine, mindestens eine Sekundärwicklung eines Näherungssensors lokal beeinflussende Primärwicklung vorgesehen sein. In addition to the realization of a at least one, at least one secondary winding of a proximity sensor locally influencing primary winding can be provided "spot" effect.
  • Die Näherungssensoren sind mit zwei oder drei zur Energieaufnahme aus einem mittelfrequenten Magnetfeld geeigneten orthogonalen Sekundärwicklungen versehen, welche mit einem Resonanzkondensator und mit einem AC/DC-Steller beschaltet sind, welcher einen Energiespeicher auflädt. The proximity sensors are provided with two or three energy from a medium magnetic field suitable orthogonal secondary windings which are switched with a resonant capacitor and an AC / DC actuator which charges an energy store.
  • Aus der From the DE 199 26 562 A1 DE 199 26 562 A1 ist ein dementsprechendes Verfahren respektive eine Anordnung respektive ein System für eine Vielzahl von Aktoren bekannt. discloses a method corresponding thereto, respectively, an arrangement of, respectively, a system for a plurality of actuators.
  • Aus der From the DE 100 55 404 A1 DE 100 55 404 A1 ist eine hierzu korrespondierende Anordnung zur Erzeugung elektrischer Energie aus einem Magnetfeld bekannt, mit einer dreidimensionalen Wicklungsanordnung, gebildet aus einem zentralen, kubusförmigen Kern aus einem magnetisch wirksamen Material, auf welchem mindestens drei Wicklungen aufgebracht sind, deren Wicklungsachsen jeweils rechtwinklig zueinander angeordnet sind und sich in einem gemeinsamen Punkt schneiden. discloses a corresponding thereto arrangement for generating electrical energy from a magnetic field with a three-dimensional winding arrangement formed from a central cube-shaped core of a magnetically active material, deposited on which at least three windings whose winding axes are each arranged at right angles to each other and in intersect a common point. Jede der drei Wicklungen ist mit einem Resonanzkondensator zu einem Resonanzkreis verschaltet und mit einem Gleichrichter verbunden, an welchem die verfügbare Ausgangsleistung abgenommen werden kann. Each of the three windings is connected with a resonant capacitor into a resonant circuit and connected to a rectifier to which the available output power can be removed.
  • Im Idealfall wird jeder Sensor respektive jeder Aktor, der sich im Primärfeld respektive Magnetfeld befindet, an seinem Montageort eine ausreichende Feldstärke für die Energieversorgung vorfinden. Ideally, each sensor, respectively, each actuator, which is located in the primary field magnetic field, respectively, will find at its installation location, a sufficient field strength for the power supply. In der Praxis wird es aber durchaus vorkommen, dass bestimmte Volumenbereiche im Primärfeld ungenügende Feldstärkewerte aufweisen. In practice, it is however quite possible that certain volume areas have insufficient field strength values ​​in the primary field. Beispiele für derart abgeschattete Feldbereiche sind der Fundamentbereich bei einem Industrieroboter oder eine von Metallflächen umgebene Nische. Examples of such a shadowed box spaces the foundation area for an industrial robot or surrounded by metal surfaces niche. In diesen abgeschatteten Feldbereichen ist die sichere und ausreichende Energieversorgung von dort befindlichen Sensoren respektive Aktoren nicht gewährleistet. In these areas shaded box safe and adequate supply of energy located there sensors respectively actuators can not be guaranteed.
  • Der Erfindung liegt die Aufgabe zugrunde, ein System zur drahtlosen Versorgung einer Vielzahl von Sensoren und/oder Aktoren und/oder anderer Elektronik der eingangs genannten Art anzugeben, welches auch in abgeschatteten Feldbereichen angeordnete Sensoren und/oder Aktoren ausreichend mit Energie versorgt. The object underlying the invention is to provide a system for wireless power to a plurality of sensors and / or actuators and / or other electronics of the type mentioned, an adequate supply which is arranged in the shaded field regions sensors and / or actuators with energy.
  • Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffes erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst. This object is achieved in conjunction with the features of the preamble according to the invention by the features specified in the characterizing part of claim 1.
  • Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass es unter Verwendung der vorgeschlagenen Feldverstärkungs- oder Ablenkungseinheiten in einfacher Art und Weise und dem konkreten und speziellen Anwendungsfall angepasst möglich ist, die magnetische Feldstärke in abgeschatteten Feldbereichen gezielt zu verstärken, indem Feldlinien des Primärfeldes in diese feldstärkeschwachen Bereiche in verstärkter Form eingeleitet oder umgelenkt werden. The advantages attainable with the invention consist in particular in that it is possible using the proposed Feldverstärkungs- or deflection units in a simple manner and the concrete and specific application adapted to increase the magnetic field strength in the shaded field regions targeted by field lines of the primary field in this field strength weak areas are introduced in amplified form or diverted. Die Feldverstärkungs- oder Ablenkungseinheiten sind als fertige Komponenten produzierbar und somit ab Lager sofort verfügbar, so dass ihr Einsatz zur Feldverstärkung im Bedarfsfall preiswert und komplikationslos erfolgen kann. The Feldverstärkungs- or distraction units are available as finished components and thus immediately available from stock, so its use for field enhancement, if necessary, can be carried out inexpensively and without complications.
  • Weitere Vorteile sind aus der nachstehenden Beschreibung ersichtlich. Other advantages will be apparent from the following description.
  • Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Advantageous embodiments of the invention are characterized in the subclaims.
  • Die Erfindung wird nachstehend anhand der in der Zeichnung dargestellten Ausführungsbeispiele erläutert. The invention is explained below with reference to shown in the drawings embodiments. Es zeigen: Show it:
  • 1 1 , . 2 2 zwei unterschiedliche Ausführungsformen einer Feldverstärkungs- oder Ablenkungseinheit, Two different embodiments of a Feldverstärkungs- or deflection unit,
  • 3 3 , . 4 4 , . 5 5 , . 6 6 vier Ausführungsbeispiele für den Einsatz einer Feldverstärkungs- oder Ablenkungseinheit oder mehrerer Feldverstärkungs- oder Ablenkungseinheiten. four exemplary embodiments for the use of a deflecting unit or Feldverstärkungs- or more Feldverstärkungs- or deflection units.
  • Wie eingangs bereits erwähnt, wird von einem System zur drahtlosen Versorgung einer Vielzahl von Sensoren und/oder Aktoren und/oder anderer Elektronik ausgegangen, wobei mindestens eine von einem mittelfrequenten Oszillator gespeiste Primärwicklung ein Magnetfeld zur drahtlosen Versorgung der Sensoren und/oder Aktoren und/oder anderer Elektronik mit elektrischer Energie erzeugt und wobei jeder Sensor und/oder Aktor und/oder andere Elektronik mindestens eine zur Energieaufnahme aus dem mittelfrequenten Magnetfeld geeignete Sekundärwicklung aufweist. As already mentioned above, it is assumed that a system for wireless power to a plurality of sensors and / or actuators and / or other electronics, wherein at least one fed by a medium frequency oscillator primary winding, a magnetic field for wireless supply of the sensors and / or actuators and / or other electronics generate electrical energy and wherein each sensor and / or actuator and / or other electronics having at least one energy absorption from the medium-frequency magnetic field suitable secondary winding. Es wird hierzu auf die Ausführungen der eingangs erwähnten It is for this purpose to the statements of the aforementioned DE 199 26 799 A1 DE 199 26 799 A1 und and DE 199 26 562 A1 DE 199 26 562 A1 hingewiesen. pointed.
  • In feldschwachen, insbesondere abgeschatteten Bereichen wird der Einsatz mindestens einer Feldverstärkungs- oder Ablenkungseinheit vorgeschlagen, welche am gewünschten Ort in das durch die Primärwicklung erzeugte Magnetfeld mit einem gewünschten Neigungswinkel eingebracht (montiert) wird, wobei die Feldverstärkungs- oder Ablenkungseinheit aus einem auf Resonanz mit dem Magnetfeld abgeglichenen ungedämpften Schwingkreis gebildet und derart im Magnetfeld ausgerichtet ist, dass das über den resultierenden hohen Resonanzstrom in der Feldverstärkungs- oder Ablenkungseinheit erzeugte Hilfsfeld einen abgeschatteten Feldbereich erreicht und derart die dort verfügbare Feldstärke verstärkt. At zero field, weak, in particular the shadowed areas, the use of at least one Feldverstärkungs- or deflection unit is proposed which is introduced into the generated by the primary coil magnetic field with a desired inclination angle at the desired location (mount) is, wherein the Feldverstärkungs- or deflection unit of an on resonance with the is magnetic field aligned undamped resonant circuit and formed in such a manner aligned in the magnetic field that the auxiliary field generated through the resultant high resonant current in the Feldverstärkungs- or deflection unit reaches a shaded box area and so enhances the available there field strength. Dabei können zwei unterschiedlichen Ausführungsformen einer Feldverstärkungs- oder Ablenkungseinheit eingesetzt werden: In this case, can be used two different embodiments of a deflection unit or Feldverstärkungs-:
  • In In 1 1 ist eine erste Ausführungsform einer Feldverstärkungs- oder Ablenkungseinheit dargestellt. a first embodiment of a Feldverstärkungs- or distraction unit is shown. Die Feldverstärkungs- oder Ablenkungseinheit The Feldverstärkungs- or deflection unit 4 4 besteht aus einem von einer Wicklung consists of a winding of a 2 2 umschlossenen Ferritstab enclosed ferrite 1 1 , wobei an die Enden der Wicklung Wherein the ends of the winding 3 3 ein Resonanzkondensator a resonance capacitor 3 3 angeschlossen ist. connected.
  • In In 2 2 ist eine zweite Ausführungsform einer Feldverstärkungs- oder Ablenkungseinheit dargestellt. a second embodiment of a Feldverstärkungs- or distraction unit is shown. Die Feldverstärkungs- oder Ablenkungseinheit The Feldverstärkungs- or deflection unit 6 6 besteht aus einer Luftspule consists of an air coil 5 5 , an deren Enden ein Resonanzkondensator At the ends of a resonant capacitor 3 3 angeschlossen ist. connected. Die Luftspule The air coil 5 5 kann mehrere Windungen aufweisen (vorzugsweise im Bereich 1...10 Windungen) und hat einen auf die gegebene Feldverstärkungsaufgabe angepassten Durchmesser, welcher vorzugsweise im Bereich 20...100 cm liegt. can more turns (preferably in the range 1 ... 10 turns) and has an adjusted to the given field enhancement task diameter which preferably is in the range 100 cm ... 20th
  • Selbstverständlich weisen beide Ausführungsformen der Feldverstärkungs- oder Ablenkungseinheiten vorzugsweise einstellbare bzw. verstellbare Montagemittel auf, welche eine einfache Befestigung am gewünschten Ort und in gewünschter Ausrichtung im Magnetfeld ermöglichen. Of course, have both embodiments of the Feldverstärkungs- or deflection units preferably adjustable or adjustable mounting means which permit a simple mounting in the desired location and in the desired orientation in the magnetic field.
  • Für beide Ausführungsformen gemäß For both embodiments according to 1 1 und and 2 2 gilt für den erforderlichen Resonanzabgleich mit dem eingangs erwähnten Primärfeld (Magnetfeld) die allgemein bekannte Schwingkreis-Beziehung applies to the required resonant matching with the above-mentioned primary field (magnetic field) the well-known resonant circuit relationship
    Figure 00050001
    mit With
  • L L
    = Induktivität des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit = Inductance of the resonant circuit of the deflection unit or Feldverstärkungs-
    C C
    = Kapazität des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit = Capacitance of the resonant circuit of the deflection unit or Feldverstärkungs-
    T T
    = Periodendauer des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit = Period of the oscillating circuit of the deflection unit or Feldverstärkungs-
    f f
    = Frequenz des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit = Frequency of the resonant circuit of the deflection unit or Feldverstärkungs-
  • In In 3 3 ist ein erstes Ausführungsbeispiel für den konkreten Einsatz einer Feldverstärkungs- oder Ablenkungseinheit dargestellt. A first embodiment for the specific use of a Feldverstärkungs- or distraction unit is shown. Es ist zu erkennen, dass die Feldverstärkungs- oder Ablenkungseinheit It can be seen that the Feldverstärkungs- or deflection unit 4 4 in ein Magnetfeld mit Feldlinien in a magnetic field with field lines 7 7 eingebracht ist, wobei der Neigungswinkel der Feldverstärkungs- oder Ablenkungseinheit is introduced, wherein the inclination angle of the deflection unit or Feldverstärkungs- 4 4 bezüglich der Richtung der Feldlinien α1 beträgt. is relative to the direction of the field lines α1. Die Feldverstärkungs- oder Ablenkungseinheit The Feldverstärkungs- or deflection unit 4 4 bewirkt eine partielle Ablenkung eines Teils der Feldlinien causes a partial deflection of a part of the field lines 7 7 – siehe abgelenkte Feldlinien - see deflected field lines 8 8th . ,
  • In In 4 4 ist ein zweites Ausführungsbeispiel für den konkreten Einsatz einer Feldverstärkungs- oder Ablenkungseinheit dargestellt. A second embodiment for the specific use of a Feldverstärkungs- or distraction unit is shown. Es ist zu erkennen, dass die Feldverstärkungs- oder Ablenkungseinheit It can be seen that the Feldverstärkungs- or deflection unit 6 6 in ein Magnetfeld mit Feldlinien in a magnetic field with field lines 7 7 eingebracht ist, wobei der Neigungswinkel der Feldverstärkungs- oder Ablenkungseinheit is introduced, wherein the inclination angle of the deflection unit or Feldverstärkungs- 6 6 bezüglich der Richtung der Feldlinien α2 beträgt. is relative to the direction of the field lines α2. Die Feldverstärkungs- oder Ablenkungseinheit The Feldverstärkungs- or deflection unit 6 6 bewirkt wiederum eine partielle Ablenkung der Feldlinien in turn, causes a partial deflection of the field lines 7 7 – siehe abgelenkte Feldlinien - see deflected field lines 8 8th . ,
  • In In 5 5 ist ein drittes Ausführungsbeispiel dargestellt, welches einen speziellen Einsatz mehrerer „nacheinander geschalteter" Feldverstärkungs- oder Ablenkungseinheiten zeigt. Es ist zu erkennen, dass drei Feldverstärkungs- oder Ablenkungseinheiten A third embodiment is shown, which shows a specific use of several "successively switched" Feldverstärkungs- or deflection units. It will be appreciated that three or deflection units Feldverstärkungs- 4.1 4.1 , . 6 6 und and 4.2 4.2 in ein Magnetfeld mit Feldlinien in a magnetic field with field lines 7 7 eingebracht sind, are incorporated,
    • • wobei der Neigungswinkel der Feldverstärkungs- oder Ablenkungseinheit • wherein the inclination angle of the deflection unit or Feldverstärkungs- 4.1 4.1 bezüglich der Richtung der Feldlinien α3 beträgt, respect to the direction of the field lines is α3,
    • • wobei der Neigungswinkel der Feldverstärkungs- oder Ablenkungseinheit • wherein the inclination angle of the deflection unit or Feldverstärkungs- 6 6 bezüglich der Richtung der Feldlinien α4 > α3 beträgt, respect to the direction of the field lines α4> α3 is,
    • • wobei der Neigungswinkel der Feldverstärkungs- oder Ablenkungseinheit • wherein the inclination angle of the deflection unit or Feldverstärkungs- 4.2 4.2 bezüglich der Richtung der Feldlinien α5 > α4 beträgt. is relative to the direction of the field lines α5> α4.
  • Die drei Feldverstärkungs- oder Ablenkungseinheit The three Feldverstärkungs- or deflection unit 4.1 4.1 , . 6 6 und and 4.2 4.2 sind derart „nacheinander" im Magnetfeld angeordnet, dass die abgelenkten Feldlinien are so arranged "sequentially" in the magnetic field that the deflected field lines 8.1 8.1 der Feldverstärkungs- oder Ablenkungseinheit the deflection unit or Feldverstärkungs- 4.1 4.1 in die Feldverstärkungs- oder Ablenkungseinheit in the deflection unit or Feldverstärkungs- 6 6 eintreten und dass nachfolgend die abgelenkten Feldlinien occur, and that subsequently the deflected field lines 8.2 8.2 der Feldverstärkungs- oder Ablenkungseinheit the deflection unit or Feldverstärkungs- 6 6 in die Feldverstärkungs- oder Ablenkungseinheit in the deflection unit or Feldverstärkungs- 4.2 4.2 eintreten. enter. Im Ergebnis zeigen die abgelenkten und aus der Feldverstärkungs- oder Ablenkungseinheit As a result, the deflected and out of Feldverstärkungs- or deflection unit show 4.2 4.2 austretenden Feldlinien emerging field lines 8.3 8.3 in Richtung des abgeschatteten Feldbereiches, welcher verstärkt werden soll. To be amplified which in the direction of the shaded box area. Im Ausführungsbeispiel gemäß In the embodiment of 5 5 werden die Feldlinien be the field lines 8.3 8.3 quasi rechtwinklig gegenüber den Feldlinien quasi-right angles with respect to the field lines 7 7 abgelenkt. distracted. Auf diese Weise kann ein durch eine Metallabschirmung In this way, by a metal screen 10 10 vom Magnetfeld abgeschirmter und in einer unzugänglichen Nische befindlicher Sensor oder Aktor (oder andere beliebige Elektronik) (Or any other electronics) by the magnetic field shielded and those under an inaccessible niche sensor or actuator 9 9 drahtlos aus dem Magnetfeld gespeist werden. wirelessly fed from the magnetic field.
  • In In 6 6 ist ein viertes Ausführungsbeispiel dargestellt, welches einen durch eine Metallabschirmung A fourth embodiment is shown, which has a by a metal shield 10 10 vom Magnetfeld abgeschirmten und in einer unzugänglichen Nische befindlichen Sensor oder Aktor shielded from the magnetic field and located in an inaccessible niche sensor or actuator 9 9 (oder andere Elektronik) zeigt. (Or other electronics) shows. Durch die Feldverstärkungs- oder Ablenkungseinheit By Feldverstärkungs- or deflection unit 6 6 erfolgt eine Verstärkung (Konzentration) der Feldlinien an amplification (concentration) of the field lines 7 7 des Magnetfeldes, welche als verstärkte Feldlinien of the magnetic field, which as amplified field lines 8.4 8.4 gezielt zum Sensor/Aktor (bzw. zur beliebigen Elektronik) targeted to the sensor / actuator (or to any electronic) 9 9 gerichtet sind und derart dessen ausreichende Energieversorgung sicherstellen. and are directed in such a way to ensure its sufficient energy supply.
  • 1 1
    Ferritstab ferrite
    2 2
    Wicklung winding
    3 3
    Resonanzkondensator resonant capacitor
    4 4
    4.1 4.1 , . 4.2 4.2 Feldverstärkungs- oder Ablenkungseinheit Feldverstärkungs- or deflection unit
    5 5
    Luftspule air coil
    6 6
    Feldverstärkungs- oder Ablenkungseinheit Feldverstärkungs- or deflection unit
    7 7
    Feldlinien des Magnetfeldes Field lines of the magnetic field
    8 8th
    8.1 8.1 , . 8.2 8.2 , . 8.3 8.3 abgelenkte Feldlinien, deflected field lines, 8.4 8.4 verstärkte Feldlinien enhanced field lines
    9 9
    Sensor oder Aktor oder andere beliebige Elektronik Sensor or actuator or any other electronics
    10 10
    Metallabschirmung metal shield
    α1, α2, α3, α4, α5 α1, α2, α3, α4, α5
    Neigungswinkel der Feldverstärkungs- oder Ablenkungseinheit bezüglich der Richtung der Feldlinien des Primärfeldes Inclination angle of the Feldverstärkungs- or deflection unit relative to the direction of the field lines of the primary field

Claims (4)

  1. System zur drahtlosen Versorgung einer Vielzahl von Geräten wie Sensoren und/oder Aktoren und/oder anderer Elektronik, wobei mindestens eine von einem mittelfrequenten Oszillator gespeiste Primärwicklung ein Magnetfeld zur drahtlosen Versorgung dieser Geräte mit elektrischer Energie erzeugt und wobei jedes dieser Geräte mindestens eine zur Energieaufnahme aus dem mittelfrequenten Magnetfeld geeignete Sekundärwicklung aufweist, dadurch gekennzeichnet , dass mindestens eine Feldverstärkungs- oder Ablenkungseinheit ( System for wireless power a variety of devices such as sensors and / or actuators and / or other electronics, wherein at least one fed by a medium frequency oscillator primary winding generates a magnetic field for wireless supply of these devices with electrical energy and wherein each of these devices at least one energy absorption from having the medium-frequency magnetic field suitable secondary winding, characterized in that at least one deflection unit Feldverstärkungs- or ( 4 4 , . 4.1 4.1 , . 4.2 4.2 , . 6 6 ) in das durch die Primärwicklung erzeugte Magnetfeld mit einem gewünschten Neigungswinkel (α1...α5) eingebracht wird, wobei die Feldverstärkungs- oder Ablenkungseinheit ( ) Is introduced into the generated magnetic field through the primary winding with a desired angle of inclination (α1 ... α5), said deflection unit Feldverstärkungs- or ( 4 4 , . 4.1 4.1 , . 4.2 4.2 , . 6 6 ) aus einem auf Resonanz mit dem Magnetfeld abgeglichenen ungedämpften Schwingkreis gebildet und derart im Magnetfeld ausgerichtet ist, dass das über den resultierenden hohen Resonanzstrom erzeugte Hilfsfeld einen abgeschatteten Feldbereich erreicht und die dort verfügbare Feldstärke verstärkt. is) formed from a balanced to resonance with the magnetic field undamped resonant circuit and so aligned in the magnetic field that the auxiliary field generated through the resultant high resonance current reaches a shaded box area and increases the available there field strength.
  2. System nach Anspruch 1, gekennzeichnet durch eine Hintereinanderschaltung von mindestens zwei Feldverstärkungs- oder Ablenkungseinheiten ( System according to claim 1, characterized by a series connection of at least two Feldverstärkungs- or deflection units ( 4 4 , . 4.1 4.1 , . 4.2 4.2 , . 6 6 ). ).
  3. System nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Feldverstärkungs- oder Ablenkungseinheit ( System according to claim 1 or 2, characterized in that the deflection unit or Feldverstärkungs- ( 4 4 , . 4.1 4.1 , . 4.2 4.2 ) aus einer einen Ferritstab ( ) (From a a ferrite rod 1 1 ) umschließenden Wicklung ( ) Enclosing winding ( 2 2 ) besteht, an welche ein Resonanzkondensator ( ) Is made to which (a resonance capacitor 3 3 ) angeschlossen ist. ) connected.
  4. System nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Feldverstärkungs- oder Ablenkungseinheit ( System according to claim 1 or 2, characterized in that the deflection unit or Feldverstärkungs- ( 6 6 ) aus einer Luftspule ( ) (From an air-core coil 5 5 ) besteht, an welche ein Resonanzkondensator ( ) Is made to which (a resonance capacitor 3 3 ) angeschlossen ist. ) connected.
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