EP1416445A2 - Coil arrangement for coin validator - Google Patents

Coil arrangement for coin validator Download PDF

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Publication number
EP1416445A2
EP1416445A2 EP03017366A EP03017366A EP1416445A2 EP 1416445 A2 EP1416445 A2 EP 1416445A2 EP 03017366 A EP03017366 A EP 03017366A EP 03017366 A EP03017366 A EP 03017366A EP 1416445 A2 EP1416445 A2 EP 1416445A2
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EP
European Patent Office
Prior art keywords
coil
bobbin
core portion
coins
coin
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.)
Granted
Application number
EP03017366A
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German (de)
French (fr)
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EP1416445B1 (en
EP1416445A3 (en
Inventor
Anton Glück
Ulrich Dipl.-Ing. Cohrs
Wilfried Dipl.-Ing. Meyer
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.)
Crane Payment Innovations GmbH
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National Rejectors Inc GmbH
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Publication date
Application filed by National Rejectors Inc GmbH filed Critical National Rejectors Inc GmbH
Publication of EP1416445A2 publication Critical patent/EP1416445A2/en
Publication of EP1416445A3 publication Critical patent/EP1416445A3/en
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Publication of EP1416445B1 publication Critical patent/EP1416445B1/en
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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D5/00—Testing specially adapted to determine the identity or genuineness of coins, e.g. for segregating coins which are unacceptable or alien to a currency
    • G07D5/08—Testing the magnetic or electric properties

Definitions

  • the invention relates to a coil assembly for a coin validator, in particular for testing bicolour coins according to the preamble of claim 1.
  • DE 101 40 225.2 discloses a method and a device for measuring the diameter of coins indicated, in which the coins an electromagnetic Go through field that is designed so that at least the upper Field of the field is covered by the coin of the smallest diameter.
  • the field is transmitted by a transmitting coil and by a receiving coil receive.
  • the transmission coil is periodically given a short pulse, whose duration is small in relation to the coin transit time. It will be for different Times of the transmitted pulse determines the maximum attenuation values.
  • the Attenuation readings are extrapolated to time zero.
  • the extrapolation measured value is measured with a given acceptance band or a predetermined characteristic for coin diameter for comparison with a stored setpoint compared.
  • the receiving coils into subsections.
  • An upper one Section is arranged so that it is at least partially covered also by Coins with the smallest diameter.
  • the lower section is arranged that in any case it is covered by the material of the coin. Therefore, can be with a coil arrangement both the diameter and the material of the coin determine. If bicolour coins are to be tested, such a coil arrangement is used a lower section is divided into two subsections, of which the upper subsection the core and the lower subsection the edge of a Bicolor coin captured.
  • US 6,398,001 B1 discloses a coil arrangement for a coin test become with an oval coil, which in an oval space of a bowl-shaped Ferrite housing is arranged. It serves primarily for diameter determination.
  • a circular, relatively small coil is located within the ferrite core and is surrounded by a circular shell.
  • the second coil can be e.g. the inner sections of a bi-color coin on the material properties check out.
  • the invention is based on the object for the described receiving coil arrangement to create an easy to produce, yet effective solution.
  • the coil assembly according to the invention has a one-piece, only one outer wall containing ferrite shell with a cylindrical core portion within the Shell for the lower section and an oval or elongated core section within the shell above the cylindrical core section. It is also an elongated one Spool provided, which can be mounted in the shell or with this is fauxbringbar. The coil winding on the elongated bobbin extends down beyond the cylindrical core portion. A separate one Spool of approximately circular cross-section is on the cylindrical Kemab mustard arranged.
  • the bobbin or the coil winding for the upper one Section or the elongated core it is theoretically conceivable to use the bobbin or the coil winding for the upper one Section or the elongated core to be arranged so that they are substantially surrounding the elongated core. For reasons of space, however, is advantageous, the coil to extend approximately over the entire length of the ferrite shell and the To arrange coil for the cylindrical core portion within the elongated coil. An impairment of the diameter measurement is negligible here.
  • the manufacture and assembly of such a coil arrangement is extraordinary easy.
  • the ferrite shell is a pressing part, and the bobbins are one-piece Plastic moldings on which then the coil winding is applied.
  • the elongated bobbin is preferably designed so that its outline the interior corresponds to the ferrite shell, so that the bobbin fits into the ferrite shell can be used.
  • the bobbin for the lower section is how mentioned, executed as a separate part and is separated on the cylindrical core portion put on the ferrite shell.
  • the inventive design of the receiving coil also has the advantage that Almost the same configuration can be used as a transmitting coil. It is only necessary to the arrangement of the separate bobbin with coil to without. Thus, for the training of the transmitting coil, the same production and Moritza measure required.
  • both the core and the ring can be a bicoloured coin with regard to the material.
  • the only requirement is that the cylindrical core sections or the bobbin in the correct Height above the Münzlaufbahn are arranged, so that also coins different Value can be tested with different dimensions.
  • the bottom of the Ferrite shell has a breakthrough for the passage of two Connection contacts for the coil of the round bobbin.
  • the oval or elongated core portion is hollow. This facilitates manufacturing, because of a massive core of greater length cracks or other impairments occur during sintering of the ferrite shell.
  • the coil winding on the bobbins is known to be electrical Connecting circuit for checking the coins.
  • looks An embodiment of the invention that the bobbin a radial approach have two parallel openings whose axis is parallel to the axis of the coil windings runs and the openings each receive an angled pin, the vertical leg with one end of the coil winding and the other Thigh forms a connection for a circuit.
  • the angled pins are preferably formed from a rectangular in cross-section wire, while the openings are round. In this way can be a pressing down the wires reach in the openings.
  • the coin moves through a coil arrangement consisting of a transmitting coil 14 and a receiving coil 16.
  • the coil assemblies 14, 16 are rectangular and in the direction of the coin 12 shorter than their diameter.
  • the receiver coil 16 is in three sections 18, Divided 20 and 22. The subdivision is in height. It is such that the Section 18 in each case temporarily from the top of the coin at least temporarily is partially covered, regardless of their diameter.
  • the coin 12 consists of an inner core 24 and a ring 26 around the core 24 (Bicoloured).
  • the upper portion 18 is arranged to be normally is not covered by the core 24 of the coin, if this the coil assembly passes.
  • the portion 20 is designed to be substantially the core portion captured a bicoloured coin.
  • the lower portion 22 substantially covers the lower portion of the rim or ring 26 from.
  • Section 18 will be for the Diameter determined while the sections 20 and 22 of the Material determination, e.g. according to a method as described in DE 197 26 449 previously described or proposed in DE 101 40 225.2.
  • Figures 2 to 6 relate primarily to the Forming the receiving coil assembly, which already pointed out will not realize the portions 18, 20 and 22 in FIG. 1 thereby need that e.g. the coil for the section 18 extend only in the upper region got to.
  • Fig. 2 is generally a ferrite shell 30 can be seen. It consists of one Bottom 32 and parallel spaced side walls 34, 36 which at the ends to each other to be bent, however, each have a gap 38 or 40 for the connections of Release coil 60.
  • To the bottom 32 are longitudinally spaced cylindrical Core sections 42, 44 integrally formed.
  • Each above a core portion 42, 44th is an elongated transverse slot 46 and 48 formed in the bottom 32.
  • an oval bobbin 60 can be seen. It is made of one piece of plastic material shaped and shaped like a frame with a first flange 62 and a second flange 64 which are spaced apart to form a Winding space for the coil winding, which is not shown here.
  • the flange 62 has a radially upwardly facing lug 66, of which an axis-parallel approach 68 going off. In this approach, parallel holes are formed to accommodate Angled pins 70 and 72, respectively.
  • the horizontal leg of the pins 70, 72 extends through the holes, the holes are round in cross section and the wires for the pins 70, 72 rectangular.
  • the vertical legs of the pins 70, 72 are of recesses 74, 76 fitted, so that the pins 70, 72 at a Pivoting or rotation are prevented.
  • the ends of the vertical legs extend beyond the radial extension 68.
  • the horizontal legs of the pins 70, 72 are used for Connection to a, not shown circuit board for the circuit for operation the coil arrangement.
  • FIG. 5 another bobbin 80 is shown with a flange 82 and a shoulder 84 at a parallel distance therebetween, between which sections Winding space is formed for the coil winding, not shown.
  • the approach 84 is similar to the approach 86.
  • In an axis-parallel section 86 are in turn two parallel openings formed for receiving wire pins 88, 90, the right angle are shaped.
  • the attachment of the pins 88, 90 is the same as that of the Pins 70, 72 in the neck 66. Therefore, it will not be discussed in detail.
  • Fig. 4 the arrangement of the bobbin 60 and 80 in the ferrite shell 30 is shown.
  • the bobbin 60 is disposed between the side walls 34, 36 and lies against the bottom 32 of the ferrite shell 30 at.
  • the insides of the frame-shaped Coil body 60 are therefore located laterally on the longitudinal sides of the core portion 50 and extend to both sides of the flanges 62 of the two bobbins 80, which are pushed onto the core sections 42, 44.
  • the facing side of the Walls 34, 36, the Kemabterrorisms 50, the cylindrical core portions 42, 44 and the flanges 82 are all in one plane.
  • FIG. 6 the opposite side of the coil assembly of FIG. 4 is in perspective shown. It can be seen that the lugs 86 of the bobbin 80 fit are received by the slots 46, 48. The projection 68 extends above the ferrite shell 30 in the gap between the ends of the side walls 34, 36th
  • a 10 cent and a 50 cent coin are shown in side view.
  • a 1 euro and a 2 euro coin are shown, which are known as bicolor coins.
  • the bobbins 80 on the core portions 42, 44 are in With regard to the coin track 10 of FIG. 1 arranged so that in this Area received field of the transmitting coil essentially only through the core of the Coins or their edge is covered.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Coins (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

The coil apparatus has a rectangular transmitter (14) and receiver (16) coil which extend perpendicular to the direction in which the coins travel. The receiver coil is divided into an upper and a lower section (18,22). The upper section extends so far over the lower section that it is only partly covered by the smallest diameter coins. The lower section extends as far as or beyond the track (10) on which the coins (12) travel. The receiver coil has a one piece ferrite shell with a cylindrical core section (24) for the lower section, and an oval or elongate core section above the cylindrical core. An elongate coil body is provided which can be attached to the ferrite shell. The coil winding extends on the elongate coil body over the core section and downwards. A separate round coil body has a coil winding and is arranged within the elongate coil body on the cylindrical core.

Description

Die Erfindung bezieht sich auf eine Spulenanordnung für einen Münzprüfer, insbesondere zum Prüfen von Bicolormünzen nach dem Oberbegriff des Anspruchs 1.The invention relates to a coil assembly for a coin validator, in particular for testing bicolour coins according to the preamble of claim 1.

Bekanntlich wird bei der Prüfung von Münzen eine Vielzahl von Eigenschaften der eingeworfenen Münzen geprüft, um eine zuverlässige Diskriminierung von Falschmünzen zu ermöglichen. Zu den ermittelten Eigenschaften der Münzen gehört ihr Durchmesser, aber auch als besonders wichtiges Kriterium das Material. Besonders problematisch ist das Prüfen von so genannten Bicolormünzen, die einen inneren Kern und einen darum herumgelegten äußeren Ring aufweisen. Kern und Ring bestehen aus unterschiedlichem Werkstoff. Um eine einwandfreie Prüfung vornehmen zu können, ist es erforderlich, sowohl den Werkstoff des Kerns als auch den des Rings unabhängig voneinander zu prüfen.As is well known, when testing coins a variety of properties of Throwed coins checked for reliable discrimination of counterfeit coins to enable. She belongs to the characteristics of the coins Diameter, but also as a particularly important criterion the material. Especially problematic is the testing of so-called Bicolor coins, which have an inner Core and have a wrapped around outer ring. Core and ring consist of different material. To make a proper check It is necessary to know both the material of the core and that of the Rings independently test.

In der DE 101 40 225.2 werden ein Verfahren und eine Vorrichtung zum Messen des Durchmessers von Münzen angegeben, bei dem die Münzen ein elektromagnetisches Feld durchlaufen, das so ausgebildet ist, dass zumindest auch der obere Bereich des Feldes von der Münze mit dem kleinsten Durchmesser abgedeckt wird. Das Feld wird von einer Sendespule gesendet und von einer Empfangsspule empfangen. Auf die Sendespule wird periodisch ein kurzer Sendeimpuls gegeben, dessen Dauer im Verhältnis zur Münzdurchlaufzeit klein ist. Es werden für unterschiedliche Zeiten des Sendeimpulses die maximalen Dämpfungswerte ermittelt. Die Dämpfungsmesswerte werden auf den Zeitpunkt Null extrapoliert. Der durch Extrapolation ermittelte Messwert wird mit einem vorgegebenen Annahmeband bzw. einer vorgegebenen Kennlinie für Münzdurchmesser zwecks Vergleich mit einem gespeicherten Sollwert verglichen. In der erwähnten Patentanmeldung ist ferner beschrieben, die Empfangsspulen in Unterabschnitte zu unterteilen. Ein oberer Abschnitt ist so angeordnet, dass er zumindest teilweise abgedeckt wird auch von Münzen mit dem kleinsten Durchmesser. Der untere Abschnitt ist so angeordnet, dass er in jedem Falle vom Material der Münze abgedeckt wird. Daher lässt sich mit einer Spulenanordnung sowohl der Durchmesser als auch der Werkstoff der Münze ermitteln. Sollen Bicolormünzen geprüft werden, wird bei einer derartigen Spulenanordnung ein unterer Abschnitt in zwei Unterabschnitte unterteilt, von denen der obere Unterabschnitt den Kern und der untere Unterabschnitt den Rand einer Bicolormünze erfasst.DE 101 40 225.2 discloses a method and a device for measuring the diameter of coins indicated, in which the coins an electromagnetic Go through field that is designed so that at least the upper Field of the field is covered by the coin of the smallest diameter. The field is transmitted by a transmitting coil and by a receiving coil receive. The transmission coil is periodically given a short pulse, whose duration is small in relation to the coin transit time. It will be for different Times of the transmitted pulse determines the maximum attenuation values. The Attenuation readings are extrapolated to time zero. The extrapolation measured value is measured with a given acceptance band or a predetermined characteristic for coin diameter for comparison with a stored setpoint compared. In the mentioned patent application is further described subdivide the receiving coils into subsections. An upper one Section is arranged so that it is at least partially covered also by Coins with the smallest diameter. The lower section is arranged that in any case it is covered by the material of the coin. Therefore, can be with a coil arrangement both the diameter and the material of the coin determine. If bicolour coins are to be tested, such a coil arrangement is used a lower section is divided into two subsections, of which the upper subsection the core and the lower subsection the edge of a Bicolor coin captured.

Aus US 5,323,891 ist eine Spulenanordnung bekannt geworden zur induktiven Prüfung von Münzen. Sie weist zwei ineinander geschachtelte. Spulen auf jeder Seite der Münzlaufbahn auf, wobei die Spulen koaxial angeordnet sind.From US 5,323,891 a coil assembly has become known for inductive testing of coins. It has two nested ones. Coils on each side the Münzlaufbahn, wherein the coils are arranged coaxially.

Aus US 6,398,001 B1 ist eine Spulenanordnung für eine Münzprüfung bekannt geworden mit einer ovalen Spule, die in einem ovalen Zwischenraum eines schalenförmigen Ferritgehäuses angeordnet ist. Sie dient in erster Linie zur Durchmesserbestimmung. Eine kreisförmige, relativ kleine Spule befindet sich innerhalb des Ferritkerns und ist von einer kreisförmigen Schale umgeben. Mit Hilfe der zweiten Spule lassen sich z.B. die inneren Abschnitte einer Bicolormünze auf die Werkstoffeigenschaften hin prüfen.US 6,398,001 B1 discloses a coil arrangement for a coin test become with an oval coil, which in an oval space of a bowl-shaped Ferrite housing is arranged. It serves primarily for diameter determination. A circular, relatively small coil is located within the ferrite core and is surrounded by a circular shell. With the help of the second coil can be e.g. the inner sections of a bi-color coin on the material properties check out.

Der Erfindung liegt die Aufgabe zugrunde, für die beschriebene Empfangsspulenanordnung eine einfach zu fertigende, jedoch wirksame Lösung zu schaffen.The invention is based on the object for the described receiving coil arrangement to create an easy to produce, yet effective solution.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Die erfindungsgemäße Spulenanordnung weist eine einteilige, nur eine Aussenwand enthaltende Ferritschale auf mit einem zylindrischen Kernabschnitt innerhalb der Schale für den unteren Abschnitt und einem ovalen oder länglichen Kernabschnitt innerhalb der Schale oberhalb des zylindrischen Kernabschnitts. Ferner ist ein länglicher Spulenkörper vorgesehen, der in der Schale anbringbar bzw. mit dieser zusammenbringbar ist. Die Spulenwicklung auf dem länglichen Spulenkörper erstreckt sich über den zylindrischen Kernabschnitt hinaus nach unten. Ein getrennter Spulenkörper von annähernd kreisförmigem Querschnitt wird auf dem zylindrischen Kemabschnitt angeordnet.The coil assembly according to the invention has a one-piece, only one outer wall containing ferrite shell with a cylindrical core portion within the Shell for the lower section and an oval or elongated core section within the shell above the cylindrical core section. It is also an elongated one Spool provided, which can be mounted in the shell or with this is zusammenbringbar. The coil winding on the elongated bobbin extends down beyond the cylindrical core portion. A separate one Spool of approximately circular cross-section is on the cylindrical Kemabschnitt arranged.

Es ist theoretisch denkbar, den Spulenkörper bzw. die Spulenwicklung für den oberen Abschnitt bzw. den länglichen Kern so anzuordnen, dass sie im Wesentlichen den länglichen Kern umgibt. Aus Platzgründen ist jedoch vorteilhaft, die Spule annähernd über die gesamte Länge der Ferritschale erstrecken zu lassen und die Spule für den zylindrischen Kernabschnitt innerhalb der länglichen Spule anzuordnen. Eine Beeinträchtigung der Durchmessermessung ist hierbei zu vernachlässigen.It is theoretically conceivable to use the bobbin or the coil winding for the upper one Section or the elongated core to be arranged so that they are substantially surrounding the elongated core. For reasons of space, however, is advantageous, the coil to extend approximately over the entire length of the ferrite shell and the To arrange coil for the cylindrical core portion within the elongated coil. An impairment of the diameter measurement is negligible here.

Die Fertigung und Montage einer derartigen Spulenanordnung ist außerordentlich einfach. Der Ferritschale ist ein Pressteil, und die Spulenkörper sind einteilige Kunststoffformteile, auf welche dann die Spulenwicklung aufzubringen ist. Der längliche Spulenkörper ist vorzugsweise so ausgeführt, dass sein Umriss dem Inneren des Ferritschalenkerns entspricht, sodass der Spulenkörper passend in die Ferritschale eingesetzt werden kann. Der Spulenkörper für den unteren Abschnitt ist, wie erwähnt, als separates Teil ausgeführt und wird getrennt auf den zylindrischen Kernabschnitt der Ferritschale aufgesetzt.The manufacture and assembly of such a coil arrangement is extraordinary easy. The ferrite shell is a pressing part, and the bobbins are one-piece Plastic moldings on which then the coil winding is applied. Of the elongated bobbin is preferably designed so that its outline the interior corresponds to the ferrite shell, so that the bobbin fits into the ferrite shell can be used. The bobbin for the lower section is how mentioned, executed as a separate part and is separated on the cylindrical core portion put on the ferrite shell.

Die erfindungsgemäße Ausbildung der Empfangsspule hat ferner den Vorteil, dass annähernd die gleiche Ausgestaltung als Sendespule verwendet werden kann. Es ist lediglich erforderlich, auf die Anordnung des separaten Spulenkörpers mit Spule zu verzichten. Mithin ist für die Ausbildung der Sendespule die gleiche Fertigung und Moritagemaßnahme erforderlich.The inventive design of the receiving coil also has the advantage that Almost the same configuration can be used as a transmitting coil. It is only necessary to the arrangement of the separate bobbin with coil to without. Thus, for the training of the transmitting coil, the same production and Moritza measure required.

Nach einer Ausgestaltung der Erfindung sind zwei vertikal beabstandete zylindrische Kernabschnitte vorgesehen, auf denen jeweils ein runder Spulenkern angeordnet ist. Mit dieser Ausführungsform lassen sich sowohl der Kern als auch der Ring einer Bicolormünze im Hinblick auf den Werkstoff prüfen. Voraussetzung ist lediglich, dass die zylindrischen Kernabschnitte bzw. die Spulenkörper in der richtigen Höhe oberhalb der Münzlaufbahn angeordnet sind, sodass auch Münzen unterschiedlichen Wertes mit unterschiedlichen Abmessungen geprüft werden können.According to one embodiment of the invention are two vertically spaced cylindrical Core sections provided, on each of which a round bobbin core arranged is. With this embodiment, both the core and the ring can be a bicoloured coin with regard to the material. The only requirement is that the cylindrical core sections or the bobbin in the correct Height above the Münzlaufbahn are arranged, so that also coins different Value can be tested with different dimensions.

In einer anderen Ausgestaltung der Erfindung ist vorgesehen, dass der Boden der Ferritschale einen Durchbruch aufweist für die Hindurchführung von zwei Anschlusskontakten für die Spule des runden Spulenkörpers.In another embodiment of the invention it is provided that the bottom of the Ferrite shell has a breakthrough for the passage of two Connection contacts for the coil of the round bobbin.

Bei einer anderen Ausgestaltung der Erfindung ist vorgesehen, dass der ovale oder längliche Kernabschnitt hohl ausgebildet ist. Hierdurch wird die Fertigung erleichtert, da bei einem massiven Kern größerer Länge Risse oder sonstige Beeinträchtigungen beim Sintern des Ferritschale auftreten können.In another embodiment of the invention it is provided that the oval or elongated core portion is hollow. This facilitates manufacturing, because of a massive core of greater length cracks or other impairments occur during sintering of the ferrite shell.

Die Spulenwicklung auf den Spulenkörpern ist bekanntlich mit der elektrischen Schaltung zur Prüfung der Münzen zu verbinden. In diesem Zusammenhang sieht eine Ausgestaltung der Erfindung vor, dass die Spulenkörper einen radialen Ansatz aufweisen mit zwei parallelen Öffnungen, deren Achse parallel zur Achse der Spulenwicklungen verläuft und die Öffnungen jeweils einen winkligen Stift aufnehmen, dessen vertikaler Schenkel mit einem Ende der Spulenwicklung und dessen anderer Schenkel einen Anschluss für eine Schaltung bildet. Die winkligen Stifte sind vorzugsweise aus einem im Querschnitt rechteckigen Draht geformt, während die Öffnungen rund sind. Auf diese Weise lässt sich eine pressende Festlegung der Drähte in den Öffnungen erreichen.The coil winding on the bobbins is known to be electrical Connecting circuit for checking the coins. In this regard, looks An embodiment of the invention, that the bobbin a radial approach have two parallel openings whose axis is parallel to the axis of the coil windings runs and the openings each receive an angled pin, the vertical leg with one end of the coil winding and the other Thigh forms a connection for a circuit. The angled pins are preferably formed from a rectangular in cross-section wire, while the openings are round. In this way can be a pressing down the wires reach in the openings.

Die Erfindung wird nachfolgend anhand eines in Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.

Fig. 1
zeigt äußerst schematisch eine Spulenanordnung zum Prüfen des Durchmessers und des Werkstoffs von Münzen.
Fig. 2
zeigt perspektivisch eine Ferritschale einer Spulenanordnung nach der Erfindung.
Fig. 3
zeigt perspektivisch einen Spulenkörper für die Spulenanordnung nach der Erfindung.
Fig. 4
zeigt perspektivisch die Verbindung des Spulenkörpers nach Fig. 3 mit der Ferritschale nach Fig. 2.
Fig. 5
zeigt perspektivisch einen weiteren Spulenkörper für die Spulenanordnung nach der Erfindung.
Fig. 6
zeigt perspektivisch aus einer anderen Sicht den Zusammenbau von Ferritschale und Spulenkörpern.
Fig. 7
zeigt zwei Darstellungen übereinandergelegter Euromünzen.
The invention will be explained in more detail with reference to an embodiment shown in the drawings.
Fig. 1
shows very schematically a coil arrangement for checking the diameter and the material of coins.
Fig. 2
shows in perspective a ferrite shell of a coil assembly according to the invention.
Fig. 3
shows in perspective a bobbin for the coil assembly according to the invention.
Fig. 4
shows in perspective the connection of the bobbin according to FIG. 3 with the ferrite shell according to FIG. 2.
Fig. 5
shows in perspective another bobbin for the coil assembly according to the invention.
Fig. 6
shows in perspective from another point of view, the assembly of ferrite shell and bobbins.
Fig. 7
shows two representations of superimposed euro coins.

In Fig. 1 ist eine Münzlaufbahn 10 eines nicht weiter dargestellten Münzprüfers zu erkennen, auf der eine Bicolormünze 12 entlangrollt. Die Münze bewegt sich durch eine Spulenanordnung, bestehend aus einer Sendespule 14 und einer Empfangsspule 16. Die Spulenanordnungen 14, 16 sind rechteckig und in Laufrichtung der Münze 12 kürzer als deren Durchmesser. Die Empfangsspule 16 ist in drei Abschnitte 18, 20 und 22 unterteilt. Die Unterteilung erfolgt in der Höhe. Sie ist derart, dass der Abschnitt 18 in jedem Fall vom oberen Bereich der Münze vorübergehend zumindest teilweise abgedeckt ist, unabhängig von deren Durchmesser. Die Münze 12 besteht aus einem inneren Kern 24 und einem Ring 26 um den Kern 24 herum (Bicolormünze). Der obere Abschnitt 18 ist so angeordnet, dass er normalerweise von dem Kern 24 der Münze nicht abgedeckt ist, wenn diese die Spulenanordnung durchläuft. Der Abschnitt 20 ist so ausgelegt, dass er im Wesentlichen den Kernbereich einer Bicolormünze erfasst. Der untere Abschnitt 22 deckt im Wesentlichen den unteren Bereich des Randes oder des Rings 26 ab. Der Abschnitt 18 wird für die Durchmesserbestimmung herangezogen, während die Abschnitte 20 und 22 der Werkstoffbestimmung dienen, z.B. nach einem Verfahren, wie es in der DE 197 26 449 vorbeschrieben oder in der DE 101 40 225.2 vorgeschlagen ist.In Fig. 1, a coin tray 10 of a Münzprüers not shown to recognize, on which a Bicolor coin 12 rolls along. The coin moves through a coil arrangement consisting of a transmitting coil 14 and a receiving coil 16. The coil assemblies 14, 16 are rectangular and in the direction of the coin 12 shorter than their diameter. The receiver coil 16 is in three sections 18, Divided 20 and 22. The subdivision is in height. It is such that the Section 18 in each case temporarily from the top of the coin at least temporarily is partially covered, regardless of their diameter. The coin 12 consists of an inner core 24 and a ring 26 around the core 24 (Bicoloured). The upper portion 18 is arranged to be normally is not covered by the core 24 of the coin, if this the coil assembly passes. The portion 20 is designed to be substantially the core portion captured a bicoloured coin. The lower portion 22 substantially covers the lower portion of the rim or ring 26 from. Section 18 will be for the Diameter determined while the sections 20 and 22 of the Material determination, e.g. according to a method as described in DE 197 26 449 previously described or proposed in DE 101 40 225.2.

Die folgende Beschreibung der Figuren 2 bis 6 bezieht sich in erster Linie auf die Ausbildung der Empfangsspulenanordnung, wobei bereits jetzt darauf hingewiesen wird, dass die Abschnitte 18, 20 und 22 in Fig. 1 nicht dadurch verwirklicht werden müssen, dass z.B. die Spule für den Abschnitt 18 lediglich im oberen Bereich verlaufen muss.The following description of Figures 2 to 6 relates primarily to the Forming the receiving coil assembly, which already pointed out will not realize the portions 18, 20 and 22 in FIG. 1 thereby need that e.g. the coil for the section 18 extend only in the upper region got to.

In Fig. 2 ist allgemein eine Ferritschale 30 zu erkennen. Sie besteht aus einem Boden 32 und parallel beabstandeten Seitenwänden 34, 36, die an den Enden aufeinander zu gebogen sind, jedoch jeweils eine Lücke 38 bzw. 40 für die Anschlüsse der Spule 60 freilassen. An den Boden 32 sind in Längsrichtung beabstandete zylindrische Kernabschnitte 42, 44 angeformt. Jeweils oberhalb eines Kernabschnitts 42, 44 ist ein länglicher Querschlitz 46 bzw. 48 im Boden 32 geformt. Oberhalb des Querschlitzes 36 befindet sich ein hohler ovaler Kernabschnitt 50.In Fig. 2 is generally a ferrite shell 30 can be seen. It consists of one Bottom 32 and parallel spaced side walls 34, 36 which at the ends to each other to be bent, however, each have a gap 38 or 40 for the connections of Release coil 60. To the bottom 32 are longitudinally spaced cylindrical Core sections 42, 44 integrally formed. Each above a core portion 42, 44th is an elongated transverse slot 46 and 48 formed in the bottom 32. Above the transverse slot 36 is a hollow oval core portion 50th

In Fig. 3 ist ein ovaler Spulenkörper 60 zu erkennen. Er ist einteilig aus Kunststoffmaterial geformt und rahmenartig ausgebildet mit einem ersten Flansch 62 und einem zweiten Flansch 64, die einen Abstand voneinander haben zur Bildung eines Wickelraums für die Spulenwicklung, die hier nicht gezeigt ist. Der Flansch 62 hat einen radialen nach oben weisenden Ansatz 66, von dem ein achsparalleler Ansatz 68 abgeht. In diesem Ansatz sind parallele Löcher gebildet zur Aufnahme von winkligen Stiften 70 bzw. 72. Der horizontale Schenkel der Stifte 70, 72 erstreckt sich durch die Löcher, wobei die Löcher im Querschnitt rund sind und die Drähte für die Stifte 70, 72 rechteckig. Durch eine pressende Festlegung wird eine sichere Anbringung der Stifte 70, 72 erreicht. Die vertikalen Schenkel der Stifte 70, 72 sind von Ausnehmungen 74, 76 passend aufgenommen, sodass die Stifte 70, 72 an einer Verschwenkung oder Drehung gehindert sind. Die Enden der vertikalen Schenkel erstrecken sich über den radialen Ansatz 68 hinaus. Mit den vertikalen Schenkeln der Stifte 70, 72 werden die Enden der nicht gezeigten Spulenwicklung verbunden, beispielsweise durch Lötung. Die horizontalen Schenkel der Stifte 70, 72 dienen zur Verbindung mit einer, nicht gezeigten Schaltplatine für die Schaltung zum Betrieb der Spulenanordnung.In Fig. 3, an oval bobbin 60 can be seen. It is made of one piece of plastic material shaped and shaped like a frame with a first flange 62 and a second flange 64 which are spaced apart to form a Winding space for the coil winding, which is not shown here. The flange 62 has a radially upwardly facing lug 66, of which an axis-parallel approach 68 going off. In this approach, parallel holes are formed to accommodate Angled pins 70 and 72, respectively. The horizontal leg of the pins 70, 72 extends through the holes, the holes are round in cross section and the wires for the pins 70, 72 rectangular. By pressing down becomes a safe Attachment of the pins 70, 72 achieved. The vertical legs of the pins 70, 72 are of recesses 74, 76 fitted, so that the pins 70, 72 at a Pivoting or rotation are prevented. The ends of the vertical legs extend beyond the radial extension 68. With the vertical thighs the pins 70, 72 are connected to the ends of the coil winding, not shown, for example, by soldering. The horizontal legs of the pins 70, 72 are used for Connection to a, not shown circuit board for the circuit for operation the coil arrangement.

In Fig. 5 ist ein weiterer Spulenkörper 80 dargestellt mit einem Flansch 82 und einem Ansatz 84 in parallelem Abstand dazu, zwischen welchen Abschnitten ein Wickelraum für die nicht gezeigte Spulenwicklung gebildet ist. Der Ansatz 84 ist vergleichbar dem Ansatz 86. In einem achsparallelen Abschnitt 86 sind wiederum zwei parallele Öffnungen gebildet zur Aufnahme von Drahtstiften 88, 90, die rechtwinklig geformt sind. Die Anbringung der Stifte 88, 90 ist die gleiche wie die der Stifte 70, 72 im Ansatz 66. Daher wird darauf nicht im Einzelnen eingegangen.In Fig. 5, another bobbin 80 is shown with a flange 82 and a shoulder 84 at a parallel distance therebetween, between which sections Winding space is formed for the coil winding, not shown. The approach 84 is similar to the approach 86. In an axis-parallel section 86 are in turn two parallel openings formed for receiving wire pins 88, 90, the right angle are shaped. The attachment of the pins 88, 90 is the same as that of the Pins 70, 72 in the neck 66. Therefore, it will not be discussed in detail.

In Fig. 4 ist die Anordnung der Spulenkörper 60 und 80 in der Ferritschale 30 dargestellt. Der Spulenkörper 60 ist zwischen den Seitenwänden 34, 36 angeordnet und liegt gegen den Boden 32 der Ferritschale 30 an. Die Innenseiten des rahmenförmigen Spulenkörpers 60 liegen daher seitlich an den Längsseiten des Kernabschnitts 50 an und erstrecken sich zu beiden Seiten der Flansche 62 der beiden Spulenkörper 80, welche auf die Kernabschnitte 42, 44 aufgeschoben sind. Die zugekehrte Seite der Wände 34, 36, des Kemabschnitts 50, der zylindrischen Kernabschnitte 42, 44 und der Flansche 82 liegen sämtlich in einer Ebene.In Fig. 4, the arrangement of the bobbin 60 and 80 in the ferrite shell 30 is shown. The bobbin 60 is disposed between the side walls 34, 36 and lies against the bottom 32 of the ferrite shell 30 at. The insides of the frame-shaped Coil body 60 are therefore located laterally on the longitudinal sides of the core portion 50 and extend to both sides of the flanges 62 of the two bobbins 80, which are pushed onto the core sections 42, 44. The facing side of the Walls 34, 36, the Kemabschnitts 50, the cylindrical core portions 42, 44 and the flanges 82 are all in one plane.

In Fig. 6 ist die gegenüberliegende Seite der Spulenanordnung nach Fig. 4 perspektivisch dargestellt. Man erkennt, dass die Ansätze 86 der Spulenkörper 80 passend von den Schlitzen 46, 48 aufgenommen sind. Der Ansatz 68 erstreckt sich oberhalb der Ferritschale 30 in der Lücke zwischen den Enden der Seitenwände 34, 36.In Fig. 6, the opposite side of the coil assembly of FIG. 4 is in perspective shown. It can be seen that the lugs 86 of the bobbin 80 fit are received by the slots 46, 48. The projection 68 extends above the ferrite shell 30 in the gap between the ends of the side walls 34, 36th

In Fig. 7 sind eine 10 Cent- und eine 50 Cent-Münze in Seitenansicht dargestellt. Außerdem sind daneben eine 1 Euro- und eine 2 Euro-Münze dargestellt, welche bekanntlich Bicolormünzen sind. Man erkennt die Anordnung der Kerne bzw. der Ringe um die Kerne. Die Spulenkörper 80 auf den Kernabschnitten 42, 44 sind im Hinblick auf die Münzlaufbahn 10 gemäß Fig. 1 so angeordnet, dass das in diesem Bereich empfangene Feld der Sendespule im Wesentlichen nur durch den Kern der Münzen bzw. deren Rand abgedeckt ist. Die Wicklung des Spulenkörpers 60 nach Fig. 3 erstreckt sich zwar um sämtliche Kernabschnitte der Ferritschale 30, ausgewertet wird jedoch nur der Signalanteil, der durch den ovalen Kernabschnitt 50 beeinflusst wird. Dessen Abdeckung lässt eine Aussage über den Durchmesser der geprüften Münze zu.In Fig. 7, a 10 cent and a 50 cent coin are shown in side view. In addition, next to a 1 euro and a 2 euro coin are shown, which are known as bicolor coins. One recognizes the arrangement of the cores or the Rings around the cores. The bobbins 80 on the core portions 42, 44 are in With regard to the coin track 10 of FIG. 1 arranged so that in this Area received field of the transmitting coil essentially only through the core of the Coins or their edge is covered. The winding of the bobbin 60 after Although FIG. 3 extends around all core sections of the ferrite shell 30, it is evaluated However, only the signal portion passing through the oval core portion 50 being affected. Its coverage makes a statement about the diameter of the checked coin too.

Claims (6)

Spulenanordnung für einen Münzprüfer, insbesondere zum Prüfen von Bicolormünzen, mit einer Sende- und Empfangsspule in länglicher Rechteckform, die quer zur Laufrichtung der Münzen erstreckt sind, wobei die Empfangsspule in einen oberen und einen unteren Abschnitt unterteilt ist und der obere Abschnitt so weit oberhalb der Münzlaufbahn erstreckt ist, dass er von der Münze mit dem kleinsten Durchmesser nur teilweise abgedeckt ist, während der untere Abschnitt bis an die Münzlaufbahn heranreicht oder etwas über diese hinaussteht, dadurch gekennzeichnet, dass die Empfangsspule eine einteilige Ferritschale (30) aufweist mit einem zylindrischen Kernabschnitt (42, 44) für den unteren Abschnitt und einem ovalen oder länglichen Kernabschnitt (50) oberhalb des zylindrischen Kernabschnitts (42, 44), ferner ein länglicher Spulenkörper (60) vorgesehen ist, der an der Ferritschale (30) anbringbar ist, die Spulenwicklung auf dem länglichen Spulenkörper (60) sich über den zylindrischen Kernabschnitt (42, 44) nach unten erstreckt und ein getrennter, im Wesentlichen runder Spulenkörper mit Spulenwicklung vorgesehen ist, der innerhalb des länglichen Spulenkörpers (60) auf dem zylindrischen Kernabschnitt (42, 44) angeordnet ist.Coil assembly for a coin validator, in particular for testing bicolour coins, having a longitudinally rectangular transmitting and receiving coil extending transversely to the direction of travel of the coins, the receiving coil being divided into upper and lower portions and the upper portion being so far above Coin runway extends that it is only partially covered by the coin with the smallest diameter, while the lower portion reaches up to the Münzlaufbahn or slightly beyond this, characterized in that the receiving coil has a one-piece ferrite shell (30) having a cylindrical core portion (42, 44) for the lower portion and an oval or elongated core portion (50) above the cylindrical core portion (42, 44), further comprising an elongated bobbin (60) attachable to the ferrite shell (30), the coil winding on the elongated bobbin (60) over the cylindrical Chen core portion (42, 44) extends downwardly and a separate, substantially round bobbin with coil winding is provided, which is disposed within the elongated bobbin (60) on the cylindrical core portion (42, 44). Spulenanordnung nach Anspruch 1, dadurch gekennzeichnet, dass zwei vertikal beabstandete zylindrische Kernabschnitte (42, 44) vorgesehen sind, auf denen jeweils ein runder Spulenkörper (80) angeordnet ist.Coil arrangement according to claim 1, characterized in that two vertically spaced cylindrical core sections (42, 44) are provided, on each of which a round bobbin (80) is arranged. Spulenanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Boden (32) der Ferritschale (30) einen Durchbruch (46, 48) aufweist für die Hindurchführung von zwei Anschlusskontakten (88, 90) für die Spule des runden Spulenkörpers (80). Coil arrangement according to claim 1 or 2, characterized in that the bottom (32) of the ferrite shell (30) has an opening (46, 48) for the passage of two terminal contacts (88, 90) for the coil of the round bobbin (80). Spulenanordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der ovale oder längliche Kernabschnitt (50) hohl ausgebildet ist.Coil arrangement according to one of claims 1 to 3, characterized in that the oval or elongated core portion (50) is hollow. Spulenanordnung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Spulenkörper (60, 80) einen radialen Ansatz (66, 84) aufweisen mit zwei parallelen Öffnungen, deren Achsen parallel zur Achse der Spulenwicklungen verläuft und die Öffnungen jeweils einen winkligen Stift (70, 72 bzw. 88, 90) aufnehmen, dessen vertikaler Schenkel mit einem Ende der Spulenwicklung und dessen horizontaler Schenkel mit einem Anschluss für eine Schaltungsanordnung bildet.Coil assembly according to any one of claims 1 to 4, characterized in that the coil body (60, 80) has a radial projection (66, 84) with two parallel openings whose axes parallel to the axis of the coil windings and the openings each have an angled pin ( 70, 72 and 88, 90), the vertical leg forms with one end of the coil winding and the horizontal leg with a connection for a circuit arrangement. Spulenanordnung nach Anspruch 5, dadurch gekennzeichnet, dass der Draht der Stifte (70, 72 bzw. 88, 90) im Querschnitt rechteckig ist und die Öffnungen im Querschnitt kreisförmig sind.Coil arrangement according to claim 5, characterized in that the wire of the pins (70, 72 or 88, 90) is rectangular in cross section and the openings are circular in cross section.
EP03017366A 2002-10-31 2003-07-31 Coil arrangement for coin validator Expired - Lifetime EP1416445B1 (en)

Applications Claiming Priority (2)

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DE20216785U DE20216785U1 (en) 2002-10-31 2002-10-31 Coil arrangement for coin validators
DE20216785U 2002-10-31

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EP1416445A2 true EP1416445A2 (en) 2004-05-06
EP1416445A3 EP1416445A3 (en) 2004-11-03
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EP (1) EP1416445B1 (en)
AT (1) ATE475157T1 (en)
DE (2) DE20216785U1 (en)
ES (1) ES2345190T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008027037B4 (en) * 2008-06-06 2010-06-10 International Currency Technologies Corporation coin validator
DE102009003993A1 (en) * 2009-01-07 2010-07-08 National Rejectors, Inc. Gmbh Inductive measuring system for free-fall coins

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969885A (en) * 1982-10-13 1984-04-20 神鋼電機株式会社 Coin discriminator
US5458225A (en) * 1991-09-28 1995-10-17 Anritsu Corporation Coin discriminating apparatus
DE19726449A1 (en) * 1997-06-21 1999-01-07 Nat Rejectors Gmbh Method and circuit arrangement for checking coins
US6173826B1 (en) * 1997-02-24 2001-01-16 Mars Incorporated Method and apparatus for validating coins
US6398001B1 (en) * 1997-02-24 2002-06-04 Mars Incorporated Coin validator
DE10140225A1 (en) * 2001-08-16 2003-03-06 Nat Rejectors Gmbh Method and device for measuring the diameter of coins

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969885A (en) * 1982-10-13 1984-04-20 神鋼電機株式会社 Coin discriminator
US5458225A (en) * 1991-09-28 1995-10-17 Anritsu Corporation Coin discriminating apparatus
US6173826B1 (en) * 1997-02-24 2001-01-16 Mars Incorporated Method and apparatus for validating coins
US6398001B1 (en) * 1997-02-24 2002-06-04 Mars Incorporated Coin validator
DE19726449A1 (en) * 1997-06-21 1999-01-07 Nat Rejectors Gmbh Method and circuit arrangement for checking coins
DE10140225A1 (en) * 2001-08-16 2003-03-06 Nat Rejectors Gmbh Method and device for measuring the diameter of coins

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ATE475157T1 (en) 2010-08-15
DE20216785U1 (en) 2003-01-09
DE50312904D1 (en) 2010-09-02
EP1416445A3 (en) 2004-11-03
ES2345190T3 (en) 2010-09-17

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