EP1143461A1 - Automatically mounted coil - Google Patents

Automatically mounted coil Download PDF

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Publication number
EP1143461A1
EP1143461A1 EP01000072A EP01000072A EP1143461A1 EP 1143461 A1 EP1143461 A1 EP 1143461A1 EP 01000072 A EP01000072 A EP 01000072A EP 01000072 A EP01000072 A EP 01000072A EP 1143461 A1 EP1143461 A1 EP 1143461A1
Authority
EP
European Patent Office
Prior art keywords
coil
windings
air
turns
magnetic material
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.)
Withdrawn
Application number
EP01000072A
Other languages
German (de)
French (fr)
Inventor
Detlef Horst Philips Corp.Int.Prop.GmbH Marbach
Henk Philips Corp.Int.Prop.GmbH van der Wijst
Günther Philips Corp.Int.Prop.GmbH Spee
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Corporate Intellectual Property GmbH
Philips Patentverwaltung GmbH
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Corporate Intellectual Property GmbH, Philips Patentverwaltung GmbH, Koninklijke Philips Electronics NV filed Critical Philips Corporate Intellectual Property GmbH
Publication of EP1143461A1 publication Critical patent/EP1143461A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/02—Fixed inductances of the signal type  without magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires

Definitions

  • the present invention relates to a coil with multiple turns.
  • the object of the present invention is to provide a coil that minimized Has scattering losses due to air gaps between the turns of the coil and one enables easy, fully automatic assembly on circuit boards.
  • the object is achieved in an air coil according to the invention in that the Coils contain magnetic material.
  • the task is also according to the invention solved in that the turns an outer layer for guiding an electrical Electricity and magnetic material inside. Air gaps between each Windings of the coil cause leakage and deteriorate the electrical Properties of such a coil.
  • the Windings of the coil do not have to be glued together or on a core wrapped or held together by other additional means.
  • the sink is wound in the desired shape and keeps its shape by the magnetic Forces between turns. This allows easy manufacture, especially when High volume production.
  • the configurations according to claims 2 and 3 are particularly suitable for applications in high-frequency technology, in which air coils without a core are mostly used.
  • the magnetic one Wire from which the air coil is wound with one especially for high-frequency applications suitable material coated.
  • the magnetic wire in front of the Wrap covered with a layer of gold, silver or copper.
  • the assembly of the coil is made considerably easier. So that the automatic assembly machine recognizes the shape of the coil and its correct installation direction the coil must have the relevant information on the machine deliver. An easy way to provide this information is that the Automatic assembly machine has a magnetic sensor that detects the degree and type of Magnetization of the coil to be mounted is detected. Because the magnetization depends on the length the coil is different and uses wires with different magnetization can be different coils in their magnetic properties be recognized.
  • the embodiment according to claim 5 allows a fully automatic assembly of the coil Circuit boards. This can be a particular advantage in the case of SMD mounting (Surface Mounted Device) high production rate can be achieved. With SMD assembly, the components are on the side attached to the board on which they are mounted.
  • SMD mounting Surface Mounted Device
  • the coil is inserted with its connections in holes 4 Board and is from the bottom e.g. attached by a soldering process.
  • Figure 4 is the coil 1, however, attached to the top without holes 4 in SMD technology.
  • To the coil has particularly curved connecting legs 5 which are flat on the circuit board 6 be attached.
  • the coils 1 are by means of a Electromagnets seized by the machine and placed on the board 6, aligned and attached. Alternatively, the coils 1, as in FIG Automats are sucked in and then assembled.

Abstract

The coil has multiple windings containing magnetic material. The windings have an outer layer (3) for carrying electrical current and contain magnetic material on the inside. The windings may be coated with a material of good high frequency characteristics, such as copper, gold or silver. The form and direction in which the coil is mounted can be detected from the type and degree of magnetization of the coil.

Description

Die vorliegende Erfindung betrifft eine Spule mit mehreren Windungen.The present invention relates to a coil with multiple turns.

In modernen Elektrogeräten werden oft viele Spulen benötigt, welche auf den Platinen des jeweiligen Elektrogeräts montiert werden. Die Spulen sollen dabei möglichst gute elektrische Eigenschaften mit kompaktem Bauvolumen und hoher Montagefreundlichkeit verbinden. Aus JP-A06 036937 ist eine Spule mit einem magnetischen Kern bekannt, bei welcher der magnetische Streufluss auf ein Minimum reduziert wird, indem die Windungen der Spule und der Kern ein einziges Bauteil bilden.In modern electrical devices, many coils are often required, which are on the circuit boards of the respective electrical device. The coils should be as good as possible electrical Properties with a compact construction volume and easy installation connect. From JP-A06 036937 a coil with a magnetic core is known which reduces the magnetic leakage flux to a minimum by using the Windings of the coil and the core form a single component.

Die Aufgabe der vorliegenden Erfindung ist es, eine Spule zu schaffen, welche minimierte Streuverluste durch Luftspalte zwischen den Windungen der Spule aufweist und eine einfache vollautomatische Montage auf Platinen ermöglicht.The object of the present invention is to provide a coil that minimized Has scattering losses due to air gaps between the turns of the coil and one enables easy, fully automatic assembly on circuit boards.

Die Aufgabe wird bei einer Luftspule erfindungsgemäß dadurch gelöst, dass die Windungen magnetisches Material enthalten. Die Aufgabe wird erfindungsgemäß auch dadurch gelöst, dass die Windungen eine äußere Lage zur Führung eines elektrischen Stroms und im Innern magnetisches Material enthalten. Luftspalte zwischen einzelnen Windungen der Spule sorgen für einen Streufluss und verschlechtern die elektrischen Eigenschaften einer solchen Spule. Um diese Luftspalte zu vermeiden, bestehen die Windungen einer erfindungsgemäßen Spule aus magnetischem Draht. Durch die Magnetkräfte zwischen den einzelnen Windungen der Spule werden diese fest zusammengehalten und so Luftspalte zwischen den Windungen vermieden. Die Windungen der Spule müssen dazu weder zusammengeklebt noch auf einen Kern gewickelt oder mit sonstigen zusätzlichen Mitteln zusammengehalten werden. Die Spule wird in der gewünschten Form gewickelt und behält ihre Form durch die magnetischen Kräfte zwischen den Windungen. Dies erlaubt eine einfache Herstellung besonders bei Fertigung in hohen Stückzahlen.The object is achieved in an air coil according to the invention in that the Coils contain magnetic material. The task is also according to the invention solved in that the turns an outer layer for guiding an electrical Electricity and magnetic material inside. Air gaps between each Windings of the coil cause leakage and deteriorate the electrical Properties of such a coil. To avoid these air gaps, there are Windings of a coil made of magnetic wire according to the invention. Through the Magnetic forces between the individual turns of the coil make them firm held together, thus avoiding air gaps between the turns. The Windings of the coil do not have to be glued together or on a core wrapped or held together by other additional means. The sink is wound in the desired shape and keeps its shape by the magnetic Forces between turns. This allows easy manufacture, especially when High volume production.

Die Ausgestaltungen nach den Ansprüchen 2 und 3 eignen sich besonders für Anwendungen in der Hochfrequenztechnik, in der meist Luftspulen ohne Kern verwendet werden. Um die Leitfähigkeit für hochfrequente Ströme zu verbessern, ist der magnetische Draht, aus dem die Luftspule gewickelt ist, mit einem besonders für Hochfrequenzanwendungen geeigneten Material beschichtet. Dazu wird der magnetische Draht vor dem Wickeln mit einer Schicht aus Gold, Silber oder Kupfer überzogen.The configurations according to claims 2 and 3 are particularly suitable for applications in high-frequency technology, in which air coils without a core are mostly used. To improve the conductivity for high-frequency currents, the magnetic one Wire from which the air coil is wound, with one especially for high-frequency applications suitable material coated. To do this, the magnetic wire in front of the Wrap covered with a layer of gold, silver or copper.

Mit der Ausgestaltung nach Anspruch 4 wird die Montage der Spule wesentlich erleichtert. Damit der Montageautomat die Form der Spule und ihre richtige Einbaurichtung erkennen kann, muss die Spule die entsprechenden Informationen an den Automaten liefern. Eine einfache Möglichkeit diese Informationen bereit zustellen ist die, dass der Montageautomat einen magnetischen Sensor besitzt, der den Grad und die Art der Magnetisierung der zu montierenden Spule erfasst. Da die Magnetisierung je nach Länge der Spule unterschiedlich ist und Drähte mit unterschiedlicher Magnetisierung verwendet werden können, können unterschiedliche Spulen an ihren magnetischen Eigenschaften erkannt werden.With the configuration according to claim 4, the assembly of the coil is made considerably easier. So that the automatic assembly machine recognizes the shape of the coil and its correct installation direction the coil must have the relevant information on the machine deliver. An easy way to provide this information is that the Automatic assembly machine has a magnetic sensor that detects the degree and type of Magnetization of the coil to be mounted is detected. Because the magnetization depends on the length the coil is different and uses wires with different magnetization can be different coils in their magnetic properties be recognized.

Die Ausgestaltung nach Anspruch 5 erlaubt eine vollautomatische Montage der Spule auf Platinen. Damit kann insbesondere bei SMD-Montage (Surface Mounted Device) eine hohe Fertigungsrate erzielt werden. Bei SMD-Montage werden die Bauteile auf der Seite der Platine befestigt, auf der sie montiert sind.The embodiment according to claim 5 allows a fully automatic assembly of the coil Circuit boards. This can be a particular advantage in the case of SMD mounting (Surface Mounted Device) high production rate can be achieved. With SMD assembly, the components are on the side attached to the board on which they are mounted.

Ein Ausführungsbeispiel der vorliegenden Erfindung wird nachfolgend an Hand mehrer Figuren beschrieben und näher erläutert. Es zeigen:

  • Figur 1 eine herkömmliche Luftspule,
  • Figur 2 eine erfindungsgemäße Luftspule aus magnetischem Draht,
  • Figur 3 die erfindungsgemäße Luftspule auf einer Platine montiert,
  • Figur 4 die erfindungsganäße Luftspule auf einer Platine in SMD-Technik montiert,
  • Figur 5 einen elektromagnetischen Montageautomaten und
  • Figur 6 einen Montageautomaten mit Vakuumtechnik.
    • An embodiment of the present invention is described below with reference to several figures and explained in more detail. Show it:
  • FIG. 1 shows a conventional air coil,
  • FIG. 2 shows an air coil made of magnetic wire according to the invention,
  • FIG. 3 the air coil according to the invention mounted on a circuit board,
  • FIG. 4 shows the air coil according to the invention mounted on a circuit board using SMD technology,
  • 5 shows an electromagnetic automatic assembly machine
  • Figure 6 shows an automatic assembly machine with vacuum technology.

    • Bei herkömmlichen Spulen 1 wie in Figur 1 stellt sich das Problem, dass sich zwischen den Windungen 2 nach dem Wickeln Luftspalte bilden. Diese beeinträchtigen jedoch die elektromagnetischen Eigenschaften der Spule 1. Deshalb bestehen die Windungen 2 der erfindungsgemäßen Spule nach Figur 2 aus magnetischem Draht, wodurch die Windungen 2 ohne weitere Hilfsmittel zusammengehalten werden. Damit behält die Spule 1 nach dem Wickeln ihre endgültige Form und es entstehen keine Luftspalte wie in Figur 1. Gleichzeitig kann ein Montageautomat mit einem magnetischen Sensor an der je nach Länge und Größe der Spule 1 unterschiedlich starken und unterschiedlich gerichteten Magnetisierung zwischen verschiedenen Spulenbautypen unterscheiden. Um die Spule 1 für Hochfrequenzanwendungen zu optimieren, wird der magnetische Draht vor dem Wickeln mit einer Beschichtung 3 aus Gold, Silber, Kupfer oder einem anderen gut leitenden Material überzogen. In Figur 3 ist die erfindungsgemäße Spule 1 auf einer Platine 6 montiert. Die Spule steckt dabei mit ihren Anschlüssen in Bohrungen 4 der Platine und wird von der Unterseite z.B. durch ein Lötverfahren befestigt. In Figur 4 ist die Spule 1 dagegen auf der Oberseite ohne Bohrungen 4 in SMD-Technik befestigt. Dazu weist die Spule besonders gebogene Anschlussbeine 5 auf, welche auf der Platine 6 flächig befestigt werden.In conventional coils 1 as in Figure 1, the problem arises that between the Form windings 2 after winding air gaps. However, these affect the electromagnetic properties of the coil 1. Therefore, the turns 2 of the 2 coil of magnetic wire according to the invention, whereby the turns 2 are held together without further aids. This keeps the coil 1 after winding their final shape and there are no air gaps as in Figure 1. At the same time, an automatic assembly machine with a magnetic sensor can be attached to the Length and size of the coil 1 of different strengths and different directions Differentiate magnetization between different coil types. Around the coil 1 To optimize for high frequency applications, the magnetic wire is in front of the Wrap well with a coating 3 of gold, silver, copper or another conductive material coated. In Figure 3, the coil 1 according to the invention is on a Board 6 mounted. The coil is inserted with its connections in holes 4 Board and is from the bottom e.g. attached by a soldering process. In Figure 4 is the coil 1, however, attached to the top without holes 4 in SMD technology. To the coil has particularly curved connecting legs 5 which are flat on the circuit board 6 be attached.

    Bei dem in Figur 5 gezeigten Montageverfahren werden die Spulen 1 mittels eines Elektromagneten vom Automaten ergriffen und auf der Platine 6 platziert, ausgerichtet und befestigt. Alternativ können die Spulen 1 wie in Figur 6 auch mittels Vakuum vom Automaten angesaugt werden und dann montiert werden.In the assembly method shown in Figure 5, the coils 1 are by means of a Electromagnets seized by the machine and placed on the board 6, aligned and attached. Alternatively, the coils 1, as in FIG Automats are sucked in and then assembled.

    Claims (5)

    Luftspule (1) mit mehreren Windungen (2),
    dadurch gekennzeichnet, dass die Windungen (2) magnetisches Material enthalten.    Air coil (1) with several turns (2),
    characterized in that the turns (2) contain magnetic material.         Spule (1) mit mehreren Windungen (2),
    dadurch gekennzeichnet, dass die Windungen (2) eine äußere Lage (3) zur Führung eines elektrischen Stroms und im Innern magnetisches Material enthalten.    Coil (1) with several turns (2),
    characterized in that the windings (2) contain an outer layer (3) for carrying an electrical current and magnetic material inside.         Spule (1) nach Anspruch 1,
    dadurch gekennzeichnet, dass die Spule (1) eine Luftspule für Hochfrequenzanwendungen ist und
    dass die Windungen (2) der Luftspule mit einem Material (3) mit guten Hochfrequenzeigenschaften, insbesondere Kupfer, Gold oder Silber, beschichtet sind.    Coil (1) according to claim 1,
    characterized in that the coil (1) is an air coil for high frequency applications and
    that the windings (2) of the air coil are coated with a material (3) with good high-frequency properties, in particular copper, gold or silver.         Spule (1) nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass Form und Richtung, in der die Spule (1) montiert wird, an der Art und dem Grad der Magnetisierung der Spule (1) erkennbar ist.    Coil (1) according to claim 1 or 2,
    characterized in that the shape and direction in which the coil (1) is mounted can be recognized by the type and degree of magnetization of the coil (1).         Spule (1) nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass die Spule (1) zur Montage auf einer Platine (6) mittels eines Montageautomaten, welcher durch elektromagnetische Kraft oder Vakuumkraft die Spule (1) greift und auf der Platine (6) platziert, vorgesehen ist.    Coil (1) according to claim 1 or 2,
    characterized in that the coil (1) is provided for mounting on a circuit board (6) by means of an automatic assembly machine which grips the coil (1) by electromagnetic force or vacuum force and places it on the circuit board (6).
    EP01000072A 2000-04-06 2001-03-28 Automatically mounted coil Withdrawn EP1143461A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10016974 2000-04-06
    DE10016974A DE10016974A1 (en) 2000-04-06 2000-04-06 Automated assembly coil

    Publications (1)

    Publication Number Publication Date
    EP1143461A1 true EP1143461A1 (en) 2001-10-10

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    EP01000072A Withdrawn EP1143461A1 (en) 2000-04-06 2001-03-28 Automatically mounted coil

    Country Status (6)

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    US (1) US6633219B2 (en)
    EP (1) EP1143461A1 (en)
    JP (1) JP2001358021A (en)
    KR (1) KR20010095333A (en)
    CN (1) CN1316750A (en)
    DE (1) DE10016974A1 (en)

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    WO2008036142A1 (en) * 2006-06-26 2008-03-27 Battelle Energy Alliance, Llc Motor/generator
    EP1970923A1 (en) * 2005-11-14 2008-09-17 Sumida Corporation Power inductor
    US7688036B2 (en) 2006-06-26 2010-03-30 Battelle Energy Alliance, Llc System and method for storing energy

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    JP5057259B2 (en) * 2001-06-06 2012-10-24 小宮 邦文 Coil filter and manufacturing method thereof
    DE102005022927A1 (en) † 2005-05-13 2006-11-16 Würth Elektronik iBE GmbH Electrical coil element produced by automatic assembly has coil wound onto a core with increased spacing between sections
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    CN103839661B (en) 2014-03-12 2017-06-20 华为技术有限公司 A kind of taper inductance, printed circuit board (PCB) and optical module
    JP6428387B2 (en) * 2015-03-06 2018-11-28 株式会社デンソー Power converter
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    GB2553842B (en) * 2016-09-16 2021-04-07 Drayson Tech Europe Ltd Three dimensional coil and method of making the same for inductive power transfer systems

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    EP1970923A4 (en) * 2005-11-14 2009-01-07 Sumida Corp Power inductor
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    Also Published As

    Publication number Publication date
    US6633219B2 (en) 2003-10-14
    CN1316750A (en) 2001-10-10
    DE10016974A1 (en) 2001-10-11
    KR20010095333A (en) 2001-11-03
    JP2001358021A (en) 2001-12-26
    US20010033175A1 (en) 2001-10-25

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