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EP1474814A1 - Former and coil for printed circuit board assembly - Google Patents

Former and coil for printed circuit board assembly

Info

Publication number
EP1474814A1
EP1474814A1 EP03706107A EP03706107A EP1474814A1 EP 1474814 A1 EP1474814 A1 EP 1474814A1 EP 03706107 A EP03706107 A EP 03706107A EP 03706107 A EP03706107 A EP 03706107A EP 1474814 A1 EP1474814 A1 EP 1474814A1
Authority
EP
European Patent Office
Prior art keywords
coil
wire
foot part
bobbin according
bobbin
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
EP03706107A
Other languages
German (de)
French (fr)
Other versions
EP1474814B1 (en
Inventor
Thomas Rothmayer
Harald Weinmeier
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.)
Siemens AG Oesterreich
Original Assignee
Siemens AG Oesterreich
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 Siemens AG Oesterreich filed Critical Siemens AG Oesterreich
Priority to AT03706107T priority Critical patent/ATE316688T1/en
Publication of EP1474814A1 publication Critical patent/EP1474814A1/en
Application granted granted Critical
Publication of EP1474814B1 publication Critical patent/EP1474814B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • 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
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • 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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/04—Fixed inductances of the signal type with magnetic core
    • H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • 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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F2027/297—Terminals; Tapping arrangements for signal inductances with pin-like terminal to be inserted in hole of printed path
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins

Definitions

  • the invention relates to a Spuleh redesign and a coil for PCB assembly, consisting of a prismatic or cylindrical winding body for at least one coil and from a integrally formed with the winding body foot part, which at least partially protrudes outwardly beyond the winding body.
  • the coils located on a bobbin are usually connected to solder pins by connecting the wire ends of one or more coils to corresponding solder pins, wrapping them and then soldering them become.
  • the coil consists of a wide and relatively rigid sheet-metal strip, which is directly soldered to a conductor track of a printed circuit board.
  • An object of the invention is to simplify the construction of the winding material with simple mounting on a circuit board and thereby reduce costs.
  • connection wires for the at least one coil formed by the winding wire are formed with their ends as solder pins, which are received in wire guides of the foot part and held therein.
  • the invention can be omitted in the manufacture of the bobbin with the coil, thus the winding material, a single operation, namely the soldering of the coil with its own solder pins. Since the ends of the winding wire are received in the wire guides of the foot part and held therein, there is a defined distance of the solder pins according to the holes provided on the circuit board.
  • wire guides are formed in sections of the foot part which lie opposite relative to the coil axis, which results in increased stability of the winding material arranged on the printed circuit board.
  • the wire guides are formed as holes in the foot part, in which one end of the coil wire can be pushed through. This results in a simple way an immovable fixing of the solder pins.
  • the wire guides are formed as outwardly open grooves in the foot part, in which one end of the coil wire from the outside can be inserted.
  • This design is especially useful when the wire is relatively stiff due to its diameter or its material properties, so that after winding a threading through holes could encounter difficulties. It is advantageous in view of the desired securing of the solder pins when the grooves are narrowed to the outside, wherein the coil wire snaps when inserting.
  • At least one wire guide is formed as a bore in a section of the foot part and at least one wire guide is formed as an open groove in an opposite section.
  • the coil wire has a diameter of 1 to 4 mm and the coil wire is advantageously designed as a copper wire.
  • FIG. 1 is a plan view of a first embodiment of the invention
  • FIG. 2 is a side view in the direction of arrow II of FIG. 1,
  • FIG. 3 is a side view in the direction of arrow II of FIG. 1,
  • FIG. 4 a coil former according to FIGS. 1 to 3, wound and provided with a core in plan view, FIG.
  • FIG. 5 shows the arrangement bobbin-coil-core as in FIG. 4, but soldered in side view on a printed circuit board, FIG.
  • FIG. 6 is a view like FIG. 5, but seen from the opposite side
  • FIG. 7 is a plan view of another possible embodiment of a bobbin in the context of the invention, and 8 shows a further embodiment of a bobbin in a plan view, similar to FIG. 7.
  • a bobbin 1 consists of a cylindrical bobbin 2 and a foot part 3 integrally formed therewith.
  • the entire bobbin 1 is made of plastic, such as e.g. Polyamide, for example, produced by an injection molding process.
  • plastic such as e.g. Polyamide, for example, produced by an injection molding process.
  • all materials can be used, which are suitable for the particular application of their electrical, thermal and mechanical properties.
  • the foot part 3 is rectangular in the present case and is - not seen in plan view - anywhere above the winding body 2 before.
  • the coil axis 1 opposite portions 3a, 3b, in which wire guides are formed, namely here two holes 4 in the one section 3b and two outwardly open grooves 5 in the other section 3a.
  • the grooves 5 are narrowed outwardly, so that a suitable diameter for a wire, which is pressed into the grooves from the outside, there is a snap fit.
  • the holes 4 and the grooves 5 are parallel to the coil axis a.
  • FIGS. 4 to 6 show the wound bobbin according to FIGS. 1 to 3.
  • a winding or coil 6 is formed of two parallel wound wires 7, 8, e.g. made of damaged copper wire.
  • the wires 7, 8 are inserted with their beginning through the holes 4 (Fig. 5), then the coil 6 is wound on the winding body 2 and then the ends of the wires 7, 8 are guided down and placed in the grooves 5.
  • the downwardly projecting ends of the wires 7, 8 are shortened so far that protrude a few millimeters above the holes 4 and grooves 5 and thereby form solder pins 9.
  • solder pins 9 the winding material can then be mounted in a known manner on a printed circuit board 10 and soldered, which is indicated in Fig. 5.
  • the otherwise customary connecting wires for the soldering pins (pins) in the invention are formed by the winding wire of the coil and pass directly, integrally into the soldering pins.
  • the coil 6 is completed by an E-core 11, which consists of two halves, wherein in the air gap bonded spacers 12 are made of plastic, which mechanically fix the two core halves.
  • the winding of the coil 6 can optionally be fixed with adhesive, for example a synthetic resin. Due to the asymmetrical arrangement of the solder pins 9 a correct mounting of the entire winding material on a circuit board 10 is ensured.
  • the coil 6 is a single winding, but double wound to allow a high current with reduced spin effect and modest wire diameter. In the context of the invention, all variants of coils or windings are possible. Of course, two connections or solder pins are sufficient for a single, single-wound coil.
  • a coil body suitable for this purpose is shown for example in FIG. 7, wherein in the foot part 3 only a groove 5 and a bore 4 are provided as wire guides.
  • coil is intended to include tapped windings as well as multiple windings of a transformer or transformer.Also in these cases, three or more solder pins will be required , wherein in the foot part 3, two grooves 5 and two holes 4 are formed as wire guides.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Windings For Motors And Generators (AREA)
  • Burglar Alarm Systems (AREA)
  • General Induction Heating (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

The invention relates to a former and a coil for printed circuit board assembly, consisting of a prismatic or cylindrical coil form for at least one coil and a foot part, which is configured as one piece with the coil form, at least sections of said part protruding externally above the coil form. According to the invention, connecting wires for the coil or coils are formed from the coil wire and their ends are configured as solder terminals, which are housed and held in wire guides of the foot part.

Description

SPULENKÖRPER UND SPULE FÜR LEITERPLATTENMONTAGE COIL BODY AND COIL ASSEMBLY
Die Erfindung bezieht sich auf einen Spulehkörper und eine Spule für Leiterplattenmontage, bestehend aus einem prismatischen oder zylindrischen Wickelkörper für zumindest eine Spule und aus einem mit dem Wickelkörper einstückig ausgebildeten Fußteil, welcher zumindest abschnittsweise nach außen über den Wickelkörper vorsteht.The invention relates to a Spulehkörper and a coil for PCB assembly, consisting of a prismatic or cylindrical winding body for at least one coil and from a integrally formed with the winding body foot part, which at least partially protrudes outwardly beyond the winding body.
Bei Wickelgütern, darunter sind im wesentlichen induktive Bauelemente im Bereich der Energieversorgung zu verstehen, werden die auf einem Wickelkörper befindlichen Spulen üblicherweise dadurch mit Einlötstiften (Pins) verbunden, dass die Drahtenden einer oder mehrerer Spulen zu entsprechenden Lötstiften geführt, um diese geschlungen und dann verlötet werden. Bei einer anderen bekannten Lösung besteht die Spule aus einem breiten und verhältnismäßig starren Blechband, welches unmittelbar mit einer Leiterbahn einer Leiterplatte verlötbar ist.In the case of winding products, which are essentially inductive components in the field of energy supply, the coils located on a bobbin are usually connected to solder pins by connecting the wire ends of one or more coils to corresponding solder pins, wrapping them and then soldering them become. In another known solution, the coil consists of a wide and relatively rigid sheet-metal strip, which is directly soldered to a conductor track of a printed circuit board.
Bei den bekannten Lösungen ist entweder der Arbeitsaufwand für die Herstellung des gesamten Wickelguts groß, z.B. wenn die Anschlussdrähte der Spule mit Lötstiften zu verlöten sind, oder es ergeben sich Schwierigkeiten beim Verlöten mit Leiterbahnen der Leiterplatte, wie dies beispielsweise bei der erwähnten Ausführung mit einem gewickelten Blechband der Fall ist.In the known solutions, either the labor required for the production of the entire winding material is great, e.g. if the lead wires of the coil are to be soldered with solder pins, or there are difficulties in soldering with printed conductors of the printed circuit board, as is the case for example in the mentioned embodiment with a wound sheet metal strip.
Eine Aufgabe der Erfindung liegt darin, bei einfacher Montage auf einer Leiterplatte den Aufbau des Wickelguts zu vereinfachen und dadurch Kosten zu senken.An object of the invention is to simplify the construction of the winding material with simple mounting on a circuit board and thereby reduce costs.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass Anschlussdrähte für die zumindest eine Spule von deren Wicklungsdraht gebildet und mit ihren Enden als Lötstifte ausgebildet sind, die in Drahtführungen des Fußteils aufgenommen und darin gehalten sind.This object is achieved in that connection wires for the at least one coil formed by the winding wire and are formed with their ends as solder pins, which are received in wire guides of the foot part and held therein.
Dank der Erfindung kann bei der Herstellung des Spulenkörpers mit der Spule, somit des Wickelguts, ein Arbeitsgang entfallen, nämlich das Verlöten der Spule mit eigenen Lötstiften. Da die Enden des Wicklungsdrahtes in den Drahtführungen des Fußteils aufgenommen und darin gehalten sind, ergibt sich ein definierter Abstand der Lötstifte entsprechend den auf der Leiterplatte vorgesehenen Bohrungen.Thanks to the invention can be omitted in the manufacture of the bobbin with the coil, thus the winding material, a single operation, namely the soldering of the coil with its own solder pins. Since the ends of the winding wire are received in the wire guides of the foot part and held therein, there is a defined distance of the solder pins according to the holes provided on the circuit board.
Bei einer zweckmäßigen Variante sind Drahtführungen in bezüglich der Spulenachse gegenüberliegenden Abschnitten des Fußteils ausgebildet, wodurch sich eine erhöhte Stabilität des auf der Leiterplatte angeordneten Wickelguts ergibt. Bei einer anderen zweckmäßigen Variante ist vorgesehen, dass die Drahtführungen als Bohrungen in dem Fußteil ausgebildet sind, in welche eine Ende des Spulendrahtes durchsteckbar ist. Hierdurch ergibt sich auf einfache Weise eine unverrückbare Festlegung der Lötstifte.In an expedient variant, wire guides are formed in sections of the foot part which lie opposite relative to the coil axis, which results in increased stability of the winding material arranged on the printed circuit board. In another expedient variant it is provided that the wire guides are formed as holes in the foot part, in which one end of the coil wire can be pushed through. This results in a simple way an immovable fixing of the solder pins.
Andererseits kann es auch zweckdienlich sein, wenn die Drahtführungen als nach außen offene Nuten in dem Fußteil ausgebildet sind, in welche ein Ende des Spulendrahtes von außen einlegbar ist. Diese Ausführung bewährt sich vor allem dann, wenn der Draht aufgrund seines Durchmessers oder seiner Materialeigenschaften relativ steif ist, so dass nach dem Wickeln ein Durchfädeln durch Bohrungen auf Schwierigkeiten stoßen könnte. Dabei ist es im Hinblick auf die gewünschte Sicherung der Lötstifte vorteilhaft, wenn die Nuten nach außen hin verengt sind, wobei der Spulendraht beim Einlegen einschnappt.On the other hand, it may also be expedient if the wire guides are formed as outwardly open grooves in the foot part, in which one end of the coil wire from the outside can be inserted. This design is especially useful when the wire is relatively stiff due to its diameter or its material properties, so that after winding a threading through holes could encounter difficulties. It is advantageous in view of the desired securing of the solder pins when the grooves are narrowed to the outside, wherein the coil wire snaps when inserting.
Bei einer besonders praxisbewährten Ausführung ist vorgesehen, dass in einem Abschnitt des Fußteils zumindest eine Drahtführung als Bohrung und in einem gegenüberliegenden Abschnitt zumindest eine Drahtführung als offene Nut ausgebildet ist. Diese Ausführung ergibt einerseits eine hohe Stabilität und Passgenauigkeit der Lötstifte und ermöglicht andererseits auch bei relativ steifem Wicklungsdraht eine einfache Herstellung.In a particularly well-proven embodiment, it is provided that at least one wire guide is formed as a bore in a section of the foot part and at least one wire guide is formed as an open groove in an opposite section. On the one hand, this design results in a high stability and accuracy of fit of the soldering pins and, on the other hand, enables easy production even with relatively stiff winding wire.
Bei üblichen und zweckmäßigen Ausführungsformen der Erfindung weist der Spulendraht einen Durchmesser von 1 - 4 mm auf und der Spulendraht wird mit Vorteil als Kupferdraht ausgeführt.In conventional and expedient embodiments of the invention, the coil wire has a diameter of 1 to 4 mm and the coil wire is advantageously designed as a copper wire.
Die Erfindung samt weiteren Vorteilen ist im folgenden anhand beispielsweiser Ausführungen näher erläutert, die in der Zeichnung veranschaulicht sind. In dieser zeigenThe invention together with further advantages is explained in more detail below with reference to exemplary embodiments, which are illustrated in the drawing. In this show
■ Fig. 1 eine Draufsicht auf eine erste Ausführungsform der Erfindung,FIG. 1 is a plan view of a first embodiment of the invention, FIG.
■ Fig. 2 eine Seitenansicht in Richtung des Pfeiles II der Fig. 1,2 is a side view in the direction of arrow II of FIG. 1,
■ Fig. 3 eine Seitenansicht in Richtung des Pfeiles II der Fig. 1,3 is a side view in the direction of arrow II of FIG. 1,
■ Fig. 4 einen Spulenkörper nach Fig. 1 bis 3, bewickelt und mit einem Kern versehen in Draufsicht,4 a coil former according to FIGS. 1 to 3, wound and provided with a core in plan view, FIG.
■ Fig. 5 die Anordnung Spulenkörper-Spule-Kern wie Fig. 4, jedoch in Seitenansicht auf einer Leiterplatte aufgelötet,FIG. 5 shows the arrangement bobbin-coil-core as in FIG. 4, but soldered in side view on a printed circuit board, FIG.
■ Fig. 6 eine Ansicht wie Fig. 5, jedoch von der gegenüberliegenden Seite gesehen,6 is a view like FIG. 5, but seen from the opposite side,
■ Fig. 7 eine Draufsicht auf eine weitere mögliche Ausführungsform eines Spulenkörpers im Rahmen der Erfindung, und ■ Fig. 8 eine weitere Ausführungsform eines Spulenkörpers in einer Draufsicht, ähnlich wie Fig. 7.7 is a plan view of another possible embodiment of a bobbin in the context of the invention, and 8 shows a further embodiment of a bobbin in a plan view, similar to FIG. 7.
Wie aus Fig. 1 und 2 ersichtlich, besteht ein Spulenkörper 1 aus einem zylindrischen Wickelkörper 2 und einem mit diesem einstückig ausgebildeten Fußteil 3. Der gesamte Spulenkörper 1 ist aus Kunststoff, wie z.B. Polyamid, beispielsweise nach einem Spritzgussverfahren hergestellt. Für den Spulenkörper 1 können selbstverständlich alle Werkstoffe Verwendung finden, die für den jeweiligen Anwendungsfall ihren elektrischen, thermischen und mechanischen Eigenschaften nach geeignet sind.As can be seen from Figures 1 and 2, a bobbin 1 consists of a cylindrical bobbin 2 and a foot part 3 integrally formed therewith. The entire bobbin 1 is made of plastic, such as e.g. Polyamide, for example, produced by an injection molding process. For the bobbin 1, of course, all materials can be used, which are suitable for the particular application of their electrical, thermal and mechanical properties.
Der Fußteil 3 ist im vorliegenden Fall rechteckig und steht - in Draufsicht nicht gesehen - überall über den Wickelkörper 2 vor. Von Bedeutung für die Erfindung sind zwei bezüglich der Spulenachse 1 gegenüberliegende Abschnitte 3a, 3b, in welche Drahtführungen ausgebildet sind, nämlich hier zwei Bohrungen 4 in dem einen Abschnitt 3b und zwei nach außen offene Nuten 5 in dem anderen Abschnitt 3a. Wie am besten aus Fig. 1 ersichtlich, sind die Nuten 5 nach außen hin verengt, sodass für einen Draht geeigneten Durchmesser, der in die Nuten von außen eingedrückt wird, eine Schnapppassung vorliegt. Die Bohrungen 4 und die Nuten 5 verlaufen parallel zu der Spulenachse a.The foot part 3 is rectangular in the present case and is - not seen in plan view - anywhere above the winding body 2 before. Of importance for the invention are two with respect to the coil axis 1 opposite portions 3a, 3b, in which wire guides are formed, namely here two holes 4 in the one section 3b and two outwardly open grooves 5 in the other section 3a. As best seen in Fig. 1, the grooves 5 are narrowed outwardly, so that a suitable diameter for a wire, which is pressed into the grooves from the outside, there is a snap fit. The holes 4 and the grooves 5 are parallel to the coil axis a.
Den Fig. 4 bis 6 ist der bewickelte Spulenkörper nach den Fig. 1 bis 3 zu entnehmen. Im vorliegenden Fall ist eine Wicklung oder Spule 6 aus zwei parallel gewickelten Drähten 7, 8 gebildet, z.B. aus lädiertem Kupferdraht. Bei der Herstellung der Spule 6 werden die Drähte 7, 8 mit ihrem Anfang durch die Bohrungen 4 gesteckt (Fig. 5), sodann wird die Spule 6 auf den Wickelkörper 2 gewickelt und dann werden die Enden der Drähte 7, 8 nach unten geführt und in die Nuten 5 gelegt. Die nach unten vorstehenden Enden der Drähte 7, 8 werden so weit gekürzt, dass die einige Millimeter über die Bohrungen 4 bzw. Nuten 5 vorstehen und hierdurch Lötstifte 9 bilden. Mit Hilfe dieser Lötstifte 9 kann dann das Wickelgut in bekannter Weise auf einer Leiterplatte 10 montiert und verlötet werden, was in Fig. 5 angedeutet ist.FIGS. 4 to 6 show the wound bobbin according to FIGS. 1 to 3. In the present case, a winding or coil 6 is formed of two parallel wound wires 7, 8, e.g. made of damaged copper wire. In the preparation of the coil 6, the wires 7, 8 are inserted with their beginning through the holes 4 (Fig. 5), then the coil 6 is wound on the winding body 2 and then the ends of the wires 7, 8 are guided down and placed in the grooves 5. The downwardly projecting ends of the wires 7, 8 are shortened so far that protrude a few millimeters above the holes 4 and grooves 5 and thereby form solder pins 9. With the help of these solder pins 9, the winding material can then be mounted in a known manner on a printed circuit board 10 and soldered, which is indicated in Fig. 5.
Man erkennt somit, dass die sonst üblichen eigenen Anschlussdrähte für die Lötstifte (Pins) bei der Erfindung von dem Wicklungsdraht der Spule gebildet werden und direkt, einstückig in die Lötstifte übergehen.It can thus be seen that the otherwise customary connecting wires for the soldering pins (pins) in the invention are formed by the winding wire of the coil and pass directly, integrally into the soldering pins.
Bei der Ausführung nach den Fig. 4 bis 6 ist die Spule 6 durch einen E-Kern 11 vervollständigt, der aus zwei Hälften besteht, wobei sich in dem Luftspalt verklebte Distanzstücke 12 aus Kunststoff befinden, welche auch die beiden Kernhälften mechanisch fixieren. Auch die Wicklung der Spule 6 kann gegebenenfalls mit Klebstoff, z.B. einem Kunstharz, fixiert werden. Durch die asymmetrische Anordnung der Lötstifte 9 wird eine richtige Montage des gesamten Wickelguts auf einer Leiterplatte 10 sichergestellt. Bei dem gezeigten Ausführungsbeispiel ist die Spule 6 eine einzige Wicklung, die jedoch doppelt gewickelt ist, um eine hohe Stromstärke bei vermindertem Spineffekt und bescheidenem Drahtdurchmesser zu ermöglichen. Im Rahmen der Erfindung sind sämtliche Varianten von Spulen bzw. Wicklungen möglich. Bei einer einzigen, einfach gewickelten Spule genügen natürlich auch zwei Anschlüsse bzw. Lötstifte. Ein dafür geeigneter Spulenkörper ist z.B. in Fig. 7 dargestellt, wobei in dem Fußteil 3 lediglich eine Nut 5 und eine Bohrung 4 als Drahtführungen vorgesehen sind.In the embodiment of FIGS. 4 to 6, the coil 6 is completed by an E-core 11, which consists of two halves, wherein in the air gap bonded spacers 12 are made of plastic, which mechanically fix the two core halves. The winding of the coil 6 can optionally be fixed with adhesive, for example a synthetic resin. Due to the asymmetrical arrangement of the solder pins 9 a correct mounting of the entire winding material on a circuit board 10 is ensured. In the embodiment shown, the coil 6 is a single winding, but double wound to allow a high current with reduced spin effect and modest wire diameter. In the context of the invention, all variants of coils or windings are possible. Of course, two connections or solder pins are sufficient for a single, single-wound coil. A coil body suitable for this purpose is shown for example in FIG. 7, wherein in the foot part 3 only a groove 5 and a bore 4 are provided as wire guides.
Der Begriff „Spule" soll hier natürlich auch angezapfte Wicklungen ebenso beinhalten, wie mehrere Wicklungen eines Transformators oder Übertragers. Auch in diesen Fällen wird man drei oder mehrere Lötstifte benötigen. Fig. 8 zeigt ein Ausführungsbeispiel, bei welchem der Wickelkörper 2 annähernd quadratischen Querschnitt besitzt, wobei in dem Fußteil 3 zwei Nuten 5 und zwei Bohrungen 4 als Drahtführungen ausgebildet sind. Of course, the term "coil" is intended to include tapped windings as well as multiple windings of a transformer or transformer.Also in these cases, three or more solder pins will be required , wherein in the foot part 3, two grooves 5 and two holes 4 are formed as wire guides.

Claims

PATENTANSPRÜCHE
1. Spulenkörper und Spule für Leiterplattenmontage, bestehend aus einem prismatischen oder zylindrischen Wickelkörper (2) für zumindest eine Spule (6) und aus einem mit dem Wickelkörper einstückig ausgebildeten Fußteil (3), welcher zumindest abschnittsweise nach außen über den Wickelkörper vorsteht, dadurch gekennzeichnet, dass1. bobbin and coil for PCB assembly, consisting of a prismatic or cylindrical winding body (2) for at least one coil (6) and of a wound with the winding body integrally formed foot part (3), which at least partially protrudes outwardly beyond the winding body, characterized that
Anschlussdrähte für die zumindest eine Spule (6) von deren Wicklungsdraht (7, 8) gebildet und mit ihren Enden als Lötstifte (9) ausgebildet sind, die in Drahtführungen (4, 5) des Fußteiles (3) aufgenommen und darin gehalten sind.Connection wires for the at least one coil (6) of the winding wire (7, 8) are formed and formed with their ends as solder pins (9) which are received in wire guides (4, 5) of the foot part (3) and held therein.
2. Spulenkörper nach Anspruch 1, dadurch gekennzeichnet, dass Drahtführungen (4, 5) in bezüglich der Spulenachse (a) gegenüberliegenden Abschnitten (3a, 3b) des Fußteils (3) ausgebildet sind.2. bobbin according to claim 1, characterized in that wire guides (4, 5) in relation to the coil axis (a) opposite portions (3a, 3b) of the foot part (3) are formed.
3. Spulenkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Drahtführungen als Bohrungen (4) in dem Fußteil (3) ausgebildet sind, in welche ein Ende des Spulendrahtes durchsteckbar ist.3. bobbin according to claim 1 or 2, characterized in that the wire guides are formed as holes (4) in the foot part (3), in which one end of the coil wire is pushed through.
4. Spulenkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Drahtführungen als nach außen offene Nuten (5) in dem Fußteil (3) ausgebildet sind, in welche ein Ende des Spulendrahtes von außen einlegbar ist.4. bobbin according to claim 1 or 2, characterized in that the wire guides are formed as outwardly open grooves (5) in the foot part (3) into which one end of the coil wire from the outside can be inserted.
5. Spulenkörper nach Anspruch 4, dadurch gekennzeichnet, dass die Nuten (5) nach außen hin verengt sind, wobei der Spulendraht bei Einlegen einschnappt.5. bobbin according to claim 4, characterized in that the grooves (5) are narrowed to the outside, wherein the coil wire snaps when inserting.
6. Spulenkörper nach Anspruch 2 und Anspruch 3 und Anspruch 4, dadurch gekennzeichnet, dass in einem Abschnitt des Fußteiles (3) zumindest eine Drahtführung als Bohrung (4) und in einem gegenüberliegenden Abschnitt zumindest eine Drahtführung als offene Nut (5) ausgebildet ist.6. bobbin according to claim 2 and claim 3 and claim 4, characterized in that in a portion of the foot part (3) at least one wire guide as a bore (4) and in an opposite section at least one wire guide as an open groove (5) is formed.
7. Spulenkörper nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Spulendraht einen Durchmesser von 1 bis 4 mm aufweist.7. bobbin according to one of claims 1 to 6, characterized in that the coil wire has a diameter of 1 to 4 mm.
8. Spulenkörper nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Spulendraht ein Kupferdraht ist. 8. bobbin according to one of claims 1 to 7, characterized in that the coil wire is a copper wire.
EP03706107A 2002-02-12 2003-02-10 Former and coil for printed circuit board assembly Expired - Lifetime EP1474814B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT03706107T ATE316688T1 (en) 2002-02-12 2003-02-10 COIL COIL AND COIL FOR PCB MOUNTING

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT2182002 2002-02-12
AT0021802A AT414075B (en) 2002-02-12 2002-02-12 COIL BODY AND COIL ASSEMBLY
PCT/AT2003/000037 WO2003069640A1 (en) 2002-02-12 2003-02-10 Former and coil for printed circuit board assembly

Publications (2)

Publication Number Publication Date
EP1474814A1 true EP1474814A1 (en) 2004-11-10
EP1474814B1 EP1474814B1 (en) 2006-01-25

Family

ID=27671427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03706107A Expired - Lifetime EP1474814B1 (en) 2002-02-12 2003-02-10 Former and coil for printed circuit board assembly

Country Status (6)

Country Link
US (1) US7057487B2 (en)
EP (1) EP1474814B1 (en)
CN (1) CN1266717C (en)
AT (2) AT414075B (en)
DE (1) DE50302289D1 (en)
WO (1) WO2003069640A1 (en)

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EP1450379B1 (en) * 2004-03-26 2008-04-16 Phonak Ag Component directly on telephone coil
US7170399B2 (en) * 2004-04-01 2007-01-30 Omron Automotive Electronics, Inc. Immobilizer coil attachment
DE602004012566T2 (en) * 2004-10-13 2009-04-16 Osram Gesellschaft mit beschränkter Haftung Assembly for inductors and methods of manufacture
WO2008090656A1 (en) * 2007-01-24 2008-07-31 Sumida Corporation Inductor
US20130200975A1 (en) * 2010-02-12 2013-08-08 Cramer Coil & Transformer Co. Integrated common mode, differential mode audio filter inductor
CN102522188B (en) * 2011-12-22 2014-08-13 江苏固德威电源科技有限公司 Fixing base for inductance line terminal
CN102694439A (en) * 2012-06-12 2012-09-26 倍磁科技（天津）有限公司 Generator of printed wiring coil framework
DE102018201488A1 (en) * 2018-01-31 2019-08-01 Siemens Aktiengesellschaft Electrical device with pressing plates for clamping a magnetizable core

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Also Published As

Publication number Publication date
ATA2182002A (en) 2005-11-15
EP1474814B1 (en) 2006-01-25
CN1266717C (en) 2006-07-26
US7057487B2 (en) 2006-06-06
ATE316688T1 (en) 2006-02-15
DE50302289D1 (en) 2006-04-13
AT414075B (en) 2006-08-15
WO2003069640A1 (en) 2003-08-21
US20050104707A1 (en) 2005-05-19
CN1623212A (en) 2005-06-01

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