EP1474814B1 - Former and coil for printed circuit board assembly - Google Patents
Former and coil for printed circuit board assembly Download PDFInfo
- Publication number
- EP1474814B1 EP1474814B1 EP03706107A EP03706107A EP1474814B1 EP 1474814 B1 EP1474814 B1 EP 1474814B1 EP 03706107 A EP03706107 A EP 03706107A EP 03706107 A EP03706107 A EP 03706107A EP 1474814 B1 EP1474814 B1 EP 1474814B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coil
- wire
- former
- circuit board
- winding
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 abstract description 12
- 239000000463 material Substances 0.000 description 8
- 238000005476 soldering Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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 bobbin and a coil for PCB assembly, consisting of a prismatic or cylindrical bobbin for at least one coil and from an integrally formed with the winding body foot part, which projects at least partially outwardly beyond the bobbin.
- 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.
- wire guides are formed in sections of the foot part which lie opposite relative to the coil axis, resulting 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.
- 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.
- a bobbin 1 consists of a cylindrical bobbin 2 and an integrally formed with this foot part 3.
- the entire bobbin 1 is made of plastic, such. Polyamide, for example, produced by an injection molding process.
- plastic such as 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 on 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 diameter suitable 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. from loaded 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 With the help of these solder pins 9 then the winding material can 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 completeness completeness by an E-core 11, which consists of two halves, which are glued in the air gap spacers 12 made of plastic, which mechanically fix the two core halves and the Winding the coil 6 can optionally be fixed with adhesive, such as 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.
- all variants of coils or windings are possible.
- two connections or solder pins are sufficient for a single, single-wound coil.
- a coil former suitable for this purpose is e.g. shown in Fig. 7, wherein in the foot part 3, only a groove 5 and a bore 4 are provided as wire guides.
- Fig. 8 shows an embodiment in which the winding body 2 has approximately square cross-section, 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)
- Burglar Alarm Systems (AREA)
- Windings For Motors And Generators (AREA)
- General Induction Heating (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Spulenkörper 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 bobbin and a coil for PCB assembly, consisting of a prismatic or cylindrical bobbin for at least one coil and from an integrally formed with the winding body foot part, which projects at least partially outwardly beyond the bobbin.
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.
Aus Dokument US-A-2941172 ist der Oberbegriff des Hauptanspruches 1 zu entnehmen.From document US-A-2941172 the preamble of the
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 durch die Merkmale des Anspruchs 1 gelöst.This object is achieved by the features of
Bei der Herstellung des Spulenkörpers mit der Spule, somit des Wickelguts, kann 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.In the preparation of the bobbin with the coil, thus the winding material, one operation can be omitted, 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.In an expedient variant, wire guides are formed in sections of the foot part which lie opposite relative to the coil axis, resulting in increased stability of the winding material arranged on the printed circuit board.
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 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.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.
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 zeigen
- ■ Fig.1 eine Draufsicht auf eine erste Ausführungsform der Erfindung,
- ■ Fig. 2 eine Seitenansicht in Richtung des Pfeiles II der Fig. 1,
- ■ Fig. 3 eine Seitenansicht in Richtung des Pfeiles II der Fig.1,
- ■ Fig. 4 einen Spulenkörper nach Fig.1 bis 3, bewickelt und mit einem Kern versehen in Draufsicht,
- ■ Fig. 5 die Anordnung Spulenkörper-Spule-Kern wie Fig. 4, jedoch in Seitenansicht auf einer Leiterplatte aufgelötet,
- ■ Fig. 6 eine Ansicht wie Fig. 5, jedoch von der gegenüberliegenden Seite gesehen,
- ■ 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.
- 1 shows a plan view of a first embodiment of the invention,
- 2 is a side view in the direction of arrow II of FIG. 1,
- 3 is a side view in the direction of arrow II of Figure 1,
- 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.
- 6 is a view like FIG. 5, but seen from the opposite side,
- 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
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
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 ladiertem 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
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 vervollstän digt, 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.In the embodiment of FIGS. 4 to 6, the
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 shown, the
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 you will need three or more solder pins. Fig. 8 shows an embodiment in which the
Claims (4)
- Coil former with coil for printed circuit board assembly, consisting of a prismatic or cylindrical winding former (2) for at least one coil (6) and one base section (3) embodied in one piece with the winding former, of which at least sections project outwards beyond the coil former, with connecting wires for the at least one coil (6) being formed from its winding wire (7, 8) and being embodied with their ends as pins (9), which are accepted and held in wire guides (4, 5), embodied as slots (5) open to the outside in the base part (3),
characterized in that
the slots are narrowed towards the outside, with the coil wire snapping into the slot when inserted. - Coil former according to claim 1, characterized in that in a section of the base part (3)at least one wire guide is embodied as a hole (4) and in an opposite section at least one wire guide as an open slot (5).
- Coil former in accordance with claim 1 or 2, characterized in that the coil wire has a diameter of between 1 and 4 mm.
- Coil former in accordance with one of the claims 1 to 3, characterized in that the coil wire is a copper wire.
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 EP1474814A1 (en) | 2004-11-10 |
| EP1474814B1 true 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) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7177436B2 (en) | 2004-03-26 | 2007-02-13 | Phonak Ag | Component arranged directly on a t-coil |
| DK1450379T3 (en) * | 2004-03-26 | 2008-08-18 | 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 |
| US7969266B2 (en) * | 2007-01-24 | 2011-06-28 | 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 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2941172A (en) * | 1957-09-24 | 1960-06-14 | Essex Electronics | Electrical winding construction |
| US3169234A (en) * | 1959-08-17 | 1965-02-09 | Coileraft Inc | Coil form, and coils and transformers mounted thereto |
| US3548356A (en) * | 1969-06-05 | 1970-12-15 | Bel Tronics Corp | Electrical winding construction |
| FR2067840A5 (en) * | 1969-11-18 | 1971-08-20 | Amp France | |
| US3649939A (en) * | 1970-01-13 | 1972-03-14 | Standard Int Corp | Electrical component |
| DE2047901B2 (en) | 1970-09-29 | 1975-10-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Encapsulated coil with bobbin type former for PCB - has cylinder axis parallel to board and socket blocks integrated into flanges |
| US4345231A (en) * | 1979-11-13 | 1982-08-17 | Basler Electric Company | Support member |
| US4484170A (en) * | 1983-02-25 | 1984-11-20 | Ncr Corporation | Dot matrix print head solenoid assembly |
| DE19958199A1 (en) * | 1998-12-11 | 2000-06-29 | Continental Teves Inc | Electrical connector for producing solderless connection between coil and circuit board e.g. for motor vehicle anti-lock braking system, has coil body with protruding plastic stud, and pre-tinned coil wire section |
| US6842101B2 (en) * | 2002-01-08 | 2005-01-11 | Eagle Comtronics, Inc. | Tunable inductor |
-
2002
- 2002-02-12 AT AT0021802A patent/AT414075B/en not_active IP Right Cessation
-
2003
- 2003-02-10 AT AT03706107T patent/ATE316688T1/en active
- 2003-02-10 DE DE50302289T patent/DE50302289D1/en not_active Expired - Lifetime
- 2003-02-10 CN CNB038027895A patent/CN1266717C/en not_active Expired - Fee Related
- 2003-02-10 US US10/503,274 patent/US7057487B2/en not_active Expired - Fee Related
- 2003-02-10 WO PCT/AT2003/000037 patent/WO2003069640A1/en active IP Right Grant
- 2003-02-10 EP EP03706107A patent/EP1474814B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1474814A1 (en) | 2004-11-10 |
| CN1266717C (en) | 2006-07-26 |
| US7057487B2 (en) | 2006-06-06 |
| ATE316688T1 (en) | 2006-02-15 |
| AT414075B (en) | 2006-08-15 |
| CN1623212A (en) | 2005-06-01 |
| WO2003069640A1 (en) | 2003-08-21 |
| ATA2182002A (en) | 2005-11-15 |
| US20050104707A1 (en) | 2005-05-19 |
| DE50302289D1 (en) | 2006-04-13 |
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