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 Download PDFInfo
- 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
- Authority
- DE
- Germany
- Prior art keywords
- field
- magnetic field
- deflection unit
- resonance
- sensors
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
Abstract
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 The invention relates to a wireless service system a plurality of sensors and / or actuators and / or other electronics according to the preamble of claim 1.
Aus
der
- – 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),
- – wobei jeder Näherungssensor mindestens eine zur Energieaufnahme aus dem mittelfrequenten Magnetfeld geeignete Sekundärwicklung aufweist,
- – 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.
- Wherein at least one primary winding fed by a medium-frequency oscillator is provided, which generates a medium-frequency magnetic field in order to supply such proximity sensors wirelessly with electrical energy (primary field),
- Each proximity sensor having at least one secondary winding suitable for absorbing energy from the medium-frequency magnetic field,
- - Wherein each proximity sensor is equipped with a transmitting device which outputs sensor information containing interest 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. Zusätzlich kann zur Realisierung einer „Spot- Wirkung" mindestens eine, mindestens eine Sekundärwicklung eines Näherungssensors lokal beeinflussende Primärwicklung vorgesehen sein.For the generation the magnetic field (primary field) serve two or three orthogonal arranged primary windings. additionally For the realization of a "spot effect", at least one, at least one secondary winding a proximity sensor provided locally influencing primary winding be.
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 using two or three to absorb energy from a medium frequency Provided magnetic field suitable orthogonal secondary windings, which are connected with a resonance capacitor and with an AC / DC controller, which charges an energy store.
Aus
der
Aus
der
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. In der Praxis wird es aber durchaus vorkommen, dass bestimmte Volumenbereiche im Primärfeld ungenügende Feldstärkewerte aufweisen. Beispiele für derart abgeschattete Feldbereiche sind der Fundamentbereich bei einem Industrieroboter oder eine von Metallflächen umgebene Nische. In diesen abgeschatteten Feldbereichen ist die sichere und ausreichende Energieversorgung von dort befindlichen Sensoren respektive Aktoren nicht gewährleistet.in the Ideally, every sensor, or each actuator, which is in the primary field respectively magnetic field, at its installation a sufficient field strength for the Find energy supply. In practice, it is quite Occur that certain volume areas in the primary field insufficient field strength values exhibit. examples for such shaded field areas are the foundation area an industrial robot or a niche surrounded by metal surfaces. In these shaded field areas is the safe and sufficient energy supply from there located sensors respectively actuators not 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.Of the Invention is based on the object, a system for wireless Supplying a variety of sensors and / or actuators and / or specify other electronics of the type mentioned, which also in shaded field areas arranged sensors and / or Actuators are sufficiently supplied with energy.
Diese Aufgabe wird in Verbindung mit den Merkmalen des Oberbegriffes erfindungsgemäß durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.These The object is achieved in conjunction with the features of the preamble according to the invention solved specified in the characterizing part of claim 1 features.
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. 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 particular advantages of the invention are that, using the proposed field enhancement or deflection units in a simple manner and the concrete and special application is possible, the magnetic field strength selectively strengthen in shaded field areas by field lines of the primary field in this field strength weak Areas in reinforced Form initiated or diverted. The field enhancement or deflection units can be produced as finished components and thus immediately available from stock, so that their use for field amplification in case of need cheap and can be done without complications.
Weitere Vorteile sind aus der nachstehenden Beschreibung ersichtlich.Further 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. Es zeigen:The Invention will be described below with reference to the drawing Embodiments explained. It demonstrate:
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. Es wird hierzu auf die Ausführungen der eingangs erwähnten
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. Dabei können zwei unterschiedlichen Ausführungsformen einer Feldverstärkungs- oder Ablenkungseinheit eingesetzt werden:In Field-weak, especially shaded areas will be the use at least one field enhancement or deflection unit proposed, which at the desired Place in that by the primary winding generated magnetic field with a desired angle of inclination introduced (mounted), wherein the field enhancement or deflection unit from a balanced to resonance with the magnetic field undamped resonant circuit is formed and aligned in the magnetic field that over the resulting high resonance current in the field amplification or deflection unit generated auxiliary field reaches a shaded field area and so available there Field strength intensified. there can two different embodiments a field enhancement or deflection unit are used:
In
In
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, wise both embodiments the field enhancement or deflection units preferably adjustable or adjustable Mounting means on which a simple attachment to the desired Place and in desired Allow alignment in the magnetic field.
Für beide
Ausführungsformen
gemäß
- L
- = Induktivität des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit
- C
- = Kapazität des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit
- T
- = Periodendauer des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit
- f
- = Frequenz des Schwingkreises der Feldverstärkungs- oder Ablenkungseinheit
- L
- = Inductance of the resonant circuit of the field amplification or deflection unit
- C
- = Capacitance of the resonant circuit of the field amplification or deflection unit
- T
- = Period of the resonant circuit of Feldverstärkungs- or deflection unit
- f
- = Frequency of the resonant circuit of the field amplification or deflection unit
In
In
In
- • wobei
der Neigungswinkel der Feldverstärkungs-
oder Ablenkungseinheit
4.1 bezüglich der Richtung der Feldlinien α3 beträgt, - • wobei
der Neigungswinkel der Feldverstärkungs-
oder Ablenkungseinheit
6 bezüglich der Richtung der Feldlinien α4 > α3 beträgt, - • wobei
der Neigungswinkel der Feldverstärkungs-
oder Ablenkungseinheit
4.2 bezüglich der Richtung der Feldlinien α5 > α4 beträgt.
- • where the inclination angle of the field enhancement or deflection unit
4.1 with respect to the direction of the field lines α3, - • where the inclination angle of the field enhancement or deflection unit
6 with respect to the direction of the field lines α4> α3, - • where the angle of inclination of the field amplifier kung or deflection unit
4.2 with respect to the direction of the field lines α5> α4.
Die
drei Feldverstärkungs-
oder Ablenkungseinheit
In
- 11
- Ferritstabferrite
- 22
- Wicklungwinding
- 33
- Resonanzkondensatorresonant capacitor
- 44
-
4.1 ,4.2 Feldverstärkungs- oder Ablenkungseinheit4.1 .4.2 Field enhancement or deflection unit - 55
- Luftspuleair coil
- 66
- Feldverstärkungs- oder AblenkungseinheitFeldverstärkungs- or deflection unit
- 77
- Feldlinien des Magnetfeldesfield lines of the magnetic field
- 88th
-
8.1 ,8.2 ,8.3 abgelenkte Feldlinien,8.4 verstärkte Feldlinien8.1 .8.2 .8.3 deflected field lines,8.4 reinforced field lines - 99
- Sensor oder Aktor oder andere beliebige Elektroniksensor or actuator or any other electronics
- 1010
- Metallabschirmungmetal shield
- α1, α2, α3, α4, α5α1, α2, α3, α4, α5
- Neigungswinkel der Feldverstärkungs- oder Ablenkungseinheit bezüglich der Richtung der Feldlinien des Primärfeldestilt angle the field enhancement or deflection unit with respect to the direction of the field lines of the primary field
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006044057A DE102006044057A1 (en) | 2006-09-20 | 2006-09-20 | 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 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006044057A DE102006044057A1 (en) | 2006-09-20 | 2006-09-20 | 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 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006044057A1 true DE102006044057A1 (en) | 2008-04-10 |
Family
ID=39154423
Family Applications (1)
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DE102006044057A Withdrawn DE102006044057A1 (en) | 2006-09-20 | 2006-09-20 | 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 |
Country Status (1)
Country | Link |
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DE (1) | DE102006044057A1 (en) |
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