EP2207148A2 - Agencement de mesure inductif pour appareils à monnaie en chute libre - Google Patents

Agencement de mesure inductif pour appareils à monnaie en chute libre Download PDF

Info

Publication number: EP2207148A2
Authority: EP; European Patent Office
Prior art keywords: coil; bobbin; inductive measuring; measuring arrangement; fall
Prior art date: 2009-01-07
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

EP09013874A

Other languages

German (de)

English (en)

Other versions

EP2207148A3 (fr

EP2207148B1 (fr

Inventor

Wilfried Meyer

Ulrich Cohrs

Anton Glück

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 Ltd

Original Assignee

National Rejectors Inc GmbH

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2009-01-07

Filing date

2009-11-05

Publication date

2010-07-14

2009-11-05 Application filed by National Rejectors Inc GmbH filed Critical National Rejectors Inc GmbH

2009-11-05 Priority to PL09013874T priority Critical patent/PL2207148T3/pl

2010-07-14 Publication of EP2207148A2 publication Critical patent/EP2207148A2/fr

2011-05-04 Publication of EP2207148A3 publication Critical patent/EP2207148A3/fr

2019-10-30 Application granted granted Critical

2019-10-30 Publication of EP2207148B1 publication Critical patent/EP2207148B1/fr

Status Active legal-status Critical Current

2029-11-05 Anticipated expiration legal-status Critical

Links

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Classifications

- 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 an inductive measuring arrangement for coin testing in free-fall coin devices according to claim 1.
Inductive measuring probes preferably consist of a transmitting coil and a receiving coil, which are arranged on both sides of a coin channel.
a transmissive and a reflexive measurement In this inductive measurement, a distinction is made between a transmissive and a reflexive measurement.
transmissive measurement the field of the transmitting coil passes through a coin. From the attenuation of the field, the receiving coil measures at least one specific parameter of the coin.
the transmit and receive coils are located on one side of the free fall path. These Measurement detects the surface and / or the near-surface calculation of the coins as, for example, specific outer layers.
the invention has for its object to provide an inductive measuring arrangement for coin testing in free-fall coin devices, which is well suited for both a transmissive and a reflective measurement of coins in free-fall coins.
inductive Meßanrodnung invention are two elongated coils coaxially arranged side by side in an E-shaped shell core housed.
the middle leg of the E-shaped shell core extends through a first coil and not at all or partially into the second outer coil.
an elongated linear bobbin made of plastic which has two axially spaced circumferential grooves for receiving at least one coil winding and within the area surrounded by the grooves an elongated axially directed recess on one side of the bobbin, wherein the depth of the recess may extend at least to the facing groove.
a shell of ferrite is E-shaped in section and takes the bobbin between its outer legs approximately fitting. The middle leg extends into the recess.
Such an inductive measuring arrangement is suitable for both transmissive and reflexive measurement.
the transmissive measurement only one coil winding as a transmitting coil and one coil winding as a receiving coil on opposite sides of the drop path are required.
the reflective measurement a coil body is required on at least one side, in which a transmitting and a receiving coil winding are arranged in each case a groove.
a reflective and transmissive measurement is made on the opposite sides of the fall path.
the measuring arrangement according to the invention is used for measuring free-fall coins. Since the fall path from grounds should be as short as possible, it is of great advantage if the elongated coil shape has a very narrow width. Preferably, the aspect ratio is 4: 1, that is, the long side is four times as large as the narrow side. This allows an effective measuring width of the channel. In addition, the height is kept small. A small dimension in the direction of fall also has the advantage that a short measurement time is achieved, so that a high pick-up frequency is possible. Finally, it can be distinguished relatively well between ring and core material in so-called Bicolor coins by the low measurement height of the coils. In the edge region, only the ring material and in the central region essentially also the core material is detected.
the middle core section extends only in the region of the respective transmitting coil, but preferably not into the receiving coil, a smaller coupling between the transmitting coil and the receiving coil is achieved in the reflexive measurement.
the decoupling is not as extensive as in the known coil arrangement described above, in which the transmitting coil is wound on an elongated bobbin and the receiving coil is arranged in a recess of significantly smaller diameter on the front side of the core, is nevertheless with an inductive measuring device according to the Invention to obtain an optimal measurement result, if you want to perform both a transmissive and a reflective measurement on opposite sides of a free fall path in a free fall coin device.
the bobbin is preferably formed integrally from a suitable plastic material, wherein according to an embodiment of the invention to the bobbin extending beyond one end of the bobbin addition approach is formed, which receives solder pins in preformed holes, which in turn connectable to wire ends of the coil winding are.
tabs of small thickness are formed on opposite sides of the bobbin in the central region, which cover the coil winding laterally protective after its folding over at least one groove. After forming the tabs initially protrude laterally outward and are folded around only after winding the coil winding. The tabs protect the windings in particular when inserting the bobbin in the ferrite shell. In addition, they allow the clamping of the bobbin in the shell. Gluing is not necessary.
Fig. 1 shows schematically an inductive measuring arrangement in a free fall coin unit with transmitting and receiving coils on each side of the fall path.
Two walls 10, 12 of a free fall coin device define a drop path 14 for coins, one of which is shown at 16.
two inductive measuring arrangements 18, 20 are arranged, each having a transmitting coil 22, 24 and a receiving coil 26, 28.
the coils 22 to 28 extend linearly perpendicular to the plane of the drawing over the entire width of the drop path 14. As a result, coins of any diameter always fall through the measuring range of the measuring arrangements 18, 20.
the basic structure of the measuring arrangements according to Fig. 1 is known.
Fig. 2 is an elongated coil assembly 30 can be seen with a bobbin 32 which receives in two coaxial grooves coil windings 54, 56. This will be discussed in more detail below.
the coil assembly 30 is inserted into a ferrule core 34 which is E-shaped in cross-section with two outer legs 36, 38 and a middle leg 40. As can be seen, the middle leg 40 extends less than half the height of the legs 36.38 ,
the bobbin 32 is integrally molded from a suitable plastic material and has at one end a triangular neck 42 which in holes 44th Solder pins 46 receives.
the solder pins are angular. With the solder pins 46, the wire ends of the coil windings 54, 56 are connected by being soldered to them. To the coil winding 56 may also occur another winding that meets the compensation purposes.
the coil is preferably wound bifilar.
tabs 48, 50 are integrally formed on the bobbin 32 in the middle in view of the longitudinal extension of the bobbin 32. They are folded after winding the coils and cover the coils in the central region, so that the coils are protected when inserted into the shell core.
the bobbin 32 has two circumferential grooves 51, 52 which are trapezoidal in section. They expand to the outside.
the grooves 51, 52 each receive a coil 54 and 56, as well as in Fig. 4 to recognize.
an elongated axial recess 60 is formed on one side of the bobbin 32. It extends largely over the entire length of the bobbin. However, the depth of the recess 60 extends only slightly beyond the groove 52 to central groove portions 58.
the bobbin 32 has a series of longitudinally spaced webs 62.
the coil assembly 30 can be inserted into the shell core, wherein the legs 36, 38 with the opposite surface of the bobbin 32 is flush. This area is then the fall path 14 in FIG. 1 faces.
the middle leg 40 extends into the recess 60 and therefore covers only the groove 52, but not the groove 51st
the coil 56 When used as an inductive measuring arrangement, the coil 56 is the transmitting coil, and the coil 54, the receiving coil. It can be seen that there is less coupling between the transmitting coils 54 and the receiving coil 56 than in conventional coil arrangements in which the core extends through both coils.
a reflective measurement of the coins is therefore possible.
a reflexive measurement of both sides of the fall path is mandatory if the coins do not have identical outer layers and it is not clear which coin surface is facing which measurement arrangement.
the distance of the coins to the receiving coil is included in the measurement, which can be compensated by a measurement on both sides, as well as in the transmissive measurement.
the middle leg 40 of the shell core determines the coupling of the two coils. Its length can thus be matched to the optimal measurement.

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Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Testing Of Coins (AREA)

EP09013874.4A 2009-01-07 2009-11-05 Agencement de mesure inductif pour appareils à monnaie en chute libre Active EP2207148B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL09013874T PL2207148T3 (pl)	2009-01-07	2009-11-05	Indukcyjny układ pomiarowy do urządzenia na monety o swobodnym spadaniu

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102009003993A DE102009003993A1 (de)	2009-01-07	2009-01-07	Induktive Messordnung für Freifall-Münzgeräte

Publications (3)

Publication Number	Publication Date
EP2207148A2 true EP2207148A2 (fr)	2010-07-14
EP2207148A3 EP2207148A3 (fr)	2011-05-04
EP2207148B1 EP2207148B1 (fr)	2019-10-30

Family

ID=42101561

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP09013874.4A Active EP2207148B1 (fr)	2009-01-07	2009-11-05	Agencement de mesure inductif pour appareils à monnaie en chute libre

Country Status (5)

Country	Link
US (1)	US8162126B2 (fr)
EP (1)	EP2207148B1 (fr)
DE (1)	DE102009003993A1 (fr)
ES (1)	ES2760498T3 (fr)
PL (1)	PL2207148T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN102831691A (zh) *	2012-08-21	2012-12-19	上海海事大学	基于电磁传感器的硬币分拣与辨伪装置及其分拣辨伪方法
IT202400004009A1 (it)	2024-02-26	2025-08-26	Microhard Srl	Discriminatore di moneta o gettone a caduta libera e gettoniera che lo comprende

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0839364A1 (fr)	1995-07-14	1998-05-06	Coin Controls Limited	Dispositif de validation de pieces
DE102004013286A1 (de)	2004-03-18	2005-11-10	National Rejectors, Inc. Gmbh	Vorrichtung zum Prüfen von Münzen
DE102007046390B3 (de)	2007-09-20	2008-11-27	National Rejectors, Inc. Gmbh	Verfahren zum Prüfen von Münzen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4924201A (en) *	1988-08-29	1990-05-08	General Electric Company	Core and coil assembly for a transformer having an amorphous steel core
JP2767278B2 (ja) *	1989-04-10	1998-06-18	株式会社日本コンラックス	硬貨選別装置
US6098777A (en) *	1996-09-30	2000-08-08	Coin Mechanisms, Inc.	Method and apparatus for discriminating different coins in free fall
DE20216785U1 (de) *	2002-10-31	2003-01-09	National Rejectors, Inc. Gmbh, 21614 Buxtehude	Spulenanordnung für Münzprüfer
JP5167470B2 (ja) *	2006-06-30	2013-03-21	旭精工株式会社	コイン識別センサおよびコインセレクタのコイン識別装置

2009
- 2009-01-07 DE DE102009003993A patent/DE102009003993A1/de not_active Withdrawn
- 2009-11-05 EP EP09013874.4A patent/EP2207148B1/fr active Active
- 2009-11-05 ES ES09013874T patent/ES2760498T3/es active Active
- 2009-11-05 PL PL09013874T patent/PL2207148T3/pl unknown
- 2009-12-04 US US12/631,222 patent/US8162126B2/en active Active

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0839364A1 (fr)	1995-07-14	1998-05-06	Coin Controls Limited	Dispositif de validation de pieces
DE102004013286A1 (de)	2004-03-18	2005-11-10	National Rejectors, Inc. Gmbh	Vorrichtung zum Prüfen von Münzen
DE102007046390B3 (de)	2007-09-20	2008-11-27	National Rejectors, Inc. Gmbh	Verfahren zum Prüfen von Münzen

Also Published As

Publication number	Publication date
US8162126B2 (en)	2012-04-24
US20100170766A1 (en)	2010-07-08
PL2207148T3 (pl)	2020-05-18
DE102009003993A1 (de)	2010-07-08
EP2207148A3 (fr)	2011-05-04
EP2207148B1 (fr)	2019-10-30
ES2760498T3 (es)	2020-05-14

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DE60116079T2 (de)	2006-08-31	Strommessvorrichtung
DE3235114C2 (fr)	1992-04-23
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