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EP0129656A1 - Coil bobbin - Google Patents

Coil bobbin Download PDF

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Publication number
EP0129656A1
EP0129656A1 EP84104157A EP84104157A EP0129656A1 EP 0129656 A1 EP0129656 A1 EP 0129656A1 EP 84104157 A EP84104157 A EP 84104157A EP 84104157 A EP84104157 A EP 84104157A EP 0129656 A1 EP0129656 A1 EP 0129656A1
Authority
EP
European Patent Office
Prior art keywords
parts
coil former
coil
coil body
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
EP84104157A
Other languages
German (de)
French (fr)
Other versions
EP0129656B1 (en
Inventor
Otfried Zipser
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.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig 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.)
Filing date
Publication date
Application filed by Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH filed Critical Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Priority to AT84104157T priority Critical patent/ATE21577T1/en
Publication of EP0129656A1 publication Critical patent/EP0129656A1/en
Application granted granted Critical
Publication of EP0129656B1 publication Critical patent/EP0129656B1/en
Expired 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications
    • 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
    • H01F2005/046—Details of formers and pin terminals related to mounting on printed circuits

Definitions

  • the invention relates to a coil former for insertion into printed circuit boards, preferably for a line transformer in combination with a switching power supply transformer of a television set, the coil former consisting of at least two cylindrical hollow parts which are injection-molded from one another and coaxially plugged into one another, and each of the coil former parts has a plurality of winding chambers.
  • coil formers for small transformers which have soldering pins on one side or on two opposite sides for inserting the transformer into printed circuit boards.
  • line transformers for television sets in which the coil body has a row of solder pins on one end face and which in standing arrangement can be inserted and soldered into printed circuit boards.
  • the bobbin is wound using the film winding technique, and the network is separated using the appropriate film intermediate layer.
  • This winding technique is particularly complex and requires appropriate care.
  • the so-called chamber winding technology coil former with molded-on separating webs

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Fluid-Damping Devices (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Air Bags (AREA)

Abstract

1. Coil former for fitting in printed circuit boards, preferably for a line output transformer in combination with a switched-mode power supply transformer of a television set, the coil former (1) consisting of at least two cylindrical hollow sections (2, 3) which are integrally injection-moulded from plastic and can be plugged coaxially one into the other, and each of the coil former sections (2, 3) having several winding chambers (12), characterised in that at least two cylindrical coil former sections (2, 3) have on a face side (5, 6) a flange segment (7, 8) with soldering pins (11) fitted in axial direction in the outer region, and in that, once the coil former sections have been plugged one into the other, a row of soldering pins lying in one plane and arranged in the shape of an arc or of a U is produced.

Description

Die Erfindung betrifft einen Spulenkörper zum Einsetzen in gedruckte Leiterplatten, vorzugsweise für einen Zeilentrafo in Kombination mit einem Schaltnetzteiltrafo eines Fernsehgerätes, wobei der Spulenkörper aus wenigstens zwei einstückig aus Kunststoffgespritzten koaxial ineinander steckbaren zylindrischen Hohlteilen besteht, und jedes der Spulenkörperteile mehrere Wickelkammern aufweist.The invention relates to a coil former for insertion into printed circuit boards, preferably for a line transformer in combination with a switching power supply transformer of a television set, the coil former consisting of at least two cylindrical hollow parts which are injection-molded from one another and coaxially plugged into one another, and each of the coil former parts has a plurality of winding chambers.

Es sind verschiedene Ausführungen von Spulenkörpern für Kleintransformatoren bekannt, die an einer Seite oder an zwei gegenüberliegenden Seiten Lötstifte zum Einsetzen des Trafos in gedruckte Leiterplatten aufweisen. Es sind auch Zeilentrarisformatoren für Fernsehgeräte bekannt, bei denen der Spulenkörper auf einer Stirnseite eine Lötstiftreihe aufweist und die in stehender Anordnung in Leiterplatten einsteck- und einlötbar sind. Der Spulenkörper wird hierbei in Folienwickeltechnik bewickelt, und die Netztrennung erfolgt über die entsprechende Folienzwischenlage. Diese Wickeltechnik ist besonders aufwendig und erfordert entsprechende Sorgfalt. Vorteilhafterweise kommt auch hierbei die sogenannte Kammerwickeltechnik (Spulenkörper mit angespritzten Trennstegen) zur Anwendung, da hierbei insbesondere unter Einsatz von Wickelautomaten eine wesentliche Vereinfachung und Verbilligung bei der Herstellung der zu bewikkelnden Spulenkörper gegeben ist. Für die netzseitige Trennung bei Kleintransformatoren empfiehlt sich das koaxiale Zusammenstecken von Kammerspulenkörpern, da so eine einfache und vorteilhafte Trennung zwischen dem sekundär- und primärseitigen Wicklungsbereich ermöglicht ist. Nachteilig ist hierbei jedoch, daß die bekannte platzsparende und fertigungsgerechte einseitige Ausführung der festen Anschlüsse bei zwei koaxial ineinandergesteckter Spulenkörper bisher nicht möglich ist.Various designs of coil formers for small transformers are known which have soldering pins on one side or on two opposite sides for inserting the transformer into printed circuit boards. There are also line transformers for television sets in which the coil body has a row of solder pins on one end face and which in standing arrangement can be inserted and soldered into printed circuit boards. The bobbin is wound using the film winding technique, and the network is separated using the appropriate film intermediate layer. This winding technique is particularly complex and requires appropriate care. Advantageously, the so-called chamber winding technology (coil former with molded-on separating webs) is also used here, since this considerably simplifies and reduces the cost of producing the coil former to be wound, in particular using automatic winding machines. For the line-side separation of small transformers, the coaxial plugging of chamber bobbins is recommended, since this enables simple and advantageous separation between the secondary and primary-side winding areas. The disadvantage here, however, is that the known space-saving, one-sided design of the fixed connections, which is suitable for production, has not hitherto been possible with two coaxially inserted bobbins.

Aufgabe der Erfindung ist es daher, eine koaxial ineinandersteckbare Kammerspulenkörperanordnung zu schaffen, die getrennt für jeden einzelnen Spulenkörper eine einseitige Anschlußmöglichkeit gewährleistet und die gleichzeitig z.B. die Verwendung eines Zeilentrafos für Fernsehgeräte in gedruckten Leiterplatten in stehender Montageanordnung ermöglicht. Diese Aufgabe wird erfindungsgemäß durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.The object of the invention is therefore to provide a coaxially pluggable chamber bobbin assembly, which separately guarantees a single-sided connection option for each individual bobbin and which, for example, enables the use of a line transformer for television sets in printed circuit boards in a standing mounting arrangement. This object is achieved by the features specified in the characterizing part of claim 1.

Vorteilhafte Ausgestaltungen des erfindungsgemäßen Spulenkörpers ergeben sich aus den Unteransprüchen.Advantageous configurations of the coil former according to the invention result from the subclaims.

Die Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnungsfiguren beispielsweise näher erläutert.The invention is explained in more detail below with reference to the drawing figures, for example.

Es zeigen:

  • Fig. 1 eine perspektivische Darstellung eines erfindungsgemäßen Spulenkörpers in auseinandergezogenem Zustand,
  • Fig. 2 eine perspektivische Darstellung eines zusammengesetzten Spulenkörpers, jedoch eingesetzt in einem kompletten Zeilentrafo eines Fernsehgerätes.
Show it:
  • 1 is a perspective view of a bobbin according to the invention in an exploded state,
  • Fig. 2 is a perspective view of an assembled coil former, but used in a complete line transformer of a television set.

Die Figur 1 zeigt in perspektivischer Darstellung im auseinandergezogenen Zustand einen Spulenkörper, der aus mehreren koaxial ineinandersteckbaren zylindrischen Hohlteilen besteht. Der komplette Spulenkörper 1 besteht hierbei aus drei verschiedenen zylindrischen Spulenkörperteilen 2, 3, 4. Von diesen Spulenkörperteilen weisen wenigstens zwei Spulenkörperteile 2, 3 an einer Stirnseite 5, 6 je ein Flanschsegment 7, 8 auf. Diese beiden Flanschsegmente der Spulenkörperteile 2, 3 sind derart versetzt angeordnet und im Segmentradius abgestimmt, daß sich nach ineinandergesteckter Spulenkörperteile 2, 3 ein in einer Ebene liegendes zusammenhängendes Flanschsegment ergibt. Die Flanschsegmente 7, 8 weisen mehrere einzelne auf Stegen 9 sitzende Befestigungsaugen 10 auf. In den Befestigungsaugen ist jeweils ein Lötstift 11 eingedrückt bzw. eingespritzt. Mittels dieser Lötstifte ist z.B. ein komplett gewickelter und zusammengesetzter Zeilentrafo eines Fernsehgerätes in eine gedruckte Leiterplatte einzusetzen und mit dieser kontaktierend verlötbar. Die Befestigungsaugen und Lötstifte 11 sind zusätzlich so ausgeführt, daß die einzelnen Anschlußdrähte der später aufgebrachten Wicklungen ebenfalls an den Lötstiften anlötbar sind und zwar bereits vor dem Zusammenstecken beider Spulenkörperteile, d. h. bereits auf dem Wickelautomaten. Nach dem Zusammenstecken der beiden Spulenkörperteile 2, 3 ergibt die sich bildende Lötstiftreihe eine kreisbogenförmige oder U-förmige Anordnung (s. Fig. 2). Die einzelnen Spulenkörperteile weisen verschiedene Wickelkammern 12 auf. Die Spulenkörperteile 2, 3, 4 werden nach Ineinanderstecken - in Pfeilrichtung - über eine Rasteinrichtung lagenfixierend gehalten. Die Rasteinrichtung besteht nach dem Ausführungsbeispiel aus drei federnden Rasthaken 13. Die Anzahl der Wickelkammern und die zugeordneten Lötstifte kann beliebig sein. Ebenso können die Kammergrößen unterschiedlich sein. Die Anschlüsse des dritten koaxial übereinandersteckbaren Spulenkörperteils können über ein drittes dem Spulenkörperteil zugeordnetes Segment oder durch Lötstifte der beiden ersten Spulenkörpersegmente vorgenommen werden.FIG. 1 shows a perspective view in the pulled-apart state of a coil former, which consists of a plurality of cylindrical hollow parts which can be plugged into one another coaxially. The complete coil body 1 here consists of three different cylindrical coil former parts 2, 3, 4. Of these coil former parts, at least two coil former parts 2, 3 each have a flange segment 7, 8 on one end face 5, 6. These two flange segments of the bobbin parts 2, 3 are arranged so as to be offset and matched in the segment radius in such a way that, after the bobbin parts 2, 3 are inserted into one another, there is a coherent flange segment lying in one plane. The flange segments 7, 8 have a plurality of individual fastening eyes 10 seated on webs 9. A soldering pin 11 is pressed or injected into each of the fastening eyes. By means of these soldering pins, for example, a completely wound and assembled line transformer of a television set can be inserted into a printed circuit board and can be soldered by contacting it. The attachment eyes and solder pins 11 are additionally designed so that the individual connecting wires of the windings applied later can also be soldered to the solder pins, specifically before the two coil body parts are plugged together, ie already on the winding machine. After the two bobbin parts 2, 3 have been plugged together, the row of solder pins that is formed results in an arcuate or U-shaped arrangement (see FIG. 2). The individual coil former parts have different winding chambers 12. The bobbin parts 2, 3, 4 are plugged into one another Direction of arrow - held in place by a locking device. According to the exemplary embodiment, the latching device consists of three resilient latching hooks 13. The number of winding chambers and the associated soldering pins can be as desired. The chamber sizes can also be different. The connections of the third coil body part, which can be plugged coaxially one above the other, can be made via a third segment assigned to the coil body part or by soldering pins of the two first coil body segments.

Die Figur 2 zeigt einen kompletten Zeilentrafo 14 eines Fernsehgerätes in perspektivischer Ansicht mit einem gewickelten Spulenkörper, der aus drei Spulenkörperteilen besteht und mit einem eingesetzten Doppel-U-Kern 15 bestückt ist. Die Darstellung dieses Zeilentrafos zeigt in eindeutiger Weise die in einer Ebene liegende kreisbogenförmig angeordnete Lötstiftreihe, wobei diese sich aus den Flanschsegmenten 7 und 8 der beiden Spulenkörperteile 2 und 3 ergibt.FIG. 2 shows a complete line transformer 14 of a television set in a perspective view with a wound coil former, which consists of three coil former parts and is equipped with an inserted double U core 15. The representation of this line transformer clearly shows the row of solder pins arranged in the form of a circular arc, which results from the flange segments 7 and 8 of the two coil body parts 2 and 3.

Claims (8)

1. Spulenkörper zum Einsetzen in Leiterplatten, vorzugsweise für einen Zeilentrafo in Kombination mit einem Schaltnetzteiltrafo eines Fernsehgerätes, wobei der Spulenkörper aus wenigstens zwei einstückig aus Kunststoff gespritzten, koaxial ineinander steckbaren zylindrischen Hohlteilen besteht, und jedes der Spulenkörperteile mehrere Wickelkammern aufweist, dadurch gekennzeichnet , daß wenigstens zwei zylindrische Spulenkörperteile (2, 3) an einer Stirnseite (5, 6) ein Flanschsegment (7, 8) mit im äußeren Bereich in axialer Richtung eingesetzten Lötstiften (11) aufweisen, und daß sich nach ineinandergesteckter Spulenkörperteile ein in einer Ebene liegende kreisbogenförmig angeordnete Lötstiftreihe ergibt.1. coil former for insertion in printed circuit boards, preferably for a line transformer in combination with a switching power supply transformer of a television set, the coil former consisting of at least two integrally molded cylindrical hollow parts which can be plugged into one another, and each of the coil former parts has several winding chambers, characterized in that at least two cylindrical bobbin parts (2, 3) on one end face (5, 6) have a flange segment (7, 8) with solder pins (11) inserted in the outer area in the axial direction, and that, after the bobbin parts have been inserted into one another, a circular arc lies in one plane arranged row of solder pins results. 2. Spulenkörper nach Anspruch 1, dadurch gekennzeichnet , daß die sich durch Ineinanderstecken der beiden Spulenkörperteile (2, 3) ergebende Lötstiftreihe eine U-förmige Anordnung aufweist.2. Coil body according to claim 1, characterized in that the resulting by inserting the two coil body parts (2, 3) resulting solder pin row has a U-shaped arrangement. 3. Spulenkörper nach den Ansprüchen 1 und 2, dadurch gekennzeichnet , daß die Spulenkörperteile (2, 3, 4) verschiedene Wickelkammern (12) aufweisen, und daß die Lötstifte (11) bedarfsweise und unabhängig von der Wickelkammerzahl einsetzbar sind.3. Coil body according to claims 1 and 2, characterized in that the coil body parts (2, 3, 4) have different winding chambers (12), and that the soldering pins (11) can be used as required and regardless of the number of winding chambers. 4. Spulenkörper nach einem der bisherigen Ansprüche, dadurch gekennzeich- net , daß das Flanschsegment (7, 8) des einzelnen Spulenkörperteils zwischen den Lötstiften ausgespart ist, und daß die einzelnen Lötstifte (11) von auf Stegen (9) sitzenden Befestigungsaugen (10) getragen sind.4. Coil body according to one of the preceding claims, characterized in that the flange segment (7, 8) of the individual coil body part is recessed between the soldering pins, and that the individual soldering pins (11) of fastening eyes (10) seated on webs (9) are worn. 5. Spulenkörper nach einem der bisherigen Ansprüche, dadurch gekennzeich- net , daß die Spulenkörperteile (2, 3, 4) über eine Rasteinrichtung in Form von federnden Rasthaken (13) verriegelbar sind.5. Bobbin according to one of the preceding claims, characterized in that the coil body parts (2, 3, 4) can be locked via a locking device in the form of resilient locking hooks (13). 6. Spulenkörper nach einem der bisherigen Ansprüche, dadurch gekennzeich- net , daß ein drittes Spulenkörperteil mit oder ohne Flanschsegment über beide ineinandergesteckten Spulenkörperteile koaxial aufsteck- und verriegelbar ist.6. Bobbin according to one of the preceding claims, characterized gekennzeich- net that a third coil former part with or without a flange segment over both nested coil former parts can be plugged and locked coaxially. 7. Spulenkörper nach einem der bisherigen Ansprüche, dadurch gekennzeich- net , daß die Anschlüsse in Form von Lötstiften (11) für den dritten Spulenkörperteil (4) einem der beiden ersten Spulenkörperteile (2, 3) zugeordnet sind.7. Coil body according to one of the preceding claims, characterized in that the connections in the form of solder pins (11) for the third coil body part (4) are assigned to one of the two first coil body parts (2, 3). 8. Spulenkörper nach einem der bisherigen Ansprüche, dadurch gekennzeich- net , daß der innere Spulenkörperteil (2) auf der Flansch-Segmentseite einen Schenkel eines eingesetzten Doppel-U-Kerns (15) teilweise umfaßt.8. Coil former according to one of the preceding claims, characterized in that the inner coil former part (2) on the flange segment side partially comprises one leg of an inserted double U core (15).
EP84104157A 1983-06-15 1984-04-12 Coil bobbin Expired EP0129656B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104157T ATE21577T1 (en) 1983-06-15 1984-04-12 COIL BODY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3321506A DE3321506A1 (en) 1983-06-15 1983-06-15 BOBBIN
DE3321506 1983-06-15

Publications (2)

Publication Number Publication Date
EP0129656A1 true EP0129656A1 (en) 1985-01-02
EP0129656B1 EP0129656B1 (en) 1986-08-20

Family

ID=6201489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104157A Expired EP0129656B1 (en) 1983-06-15 1984-04-12 Coil bobbin

Country Status (3)

Country Link
EP (1) EP0129656B1 (en)
AT (1) ATE21577T1 (en)
DE (2) DE3321506A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2339497A (en) * 1998-06-22 2000-01-26 Koito Mfg Co Ltd Transformer and method of assembling it
CN105990007A (en) * 2015-01-29 2016-10-05 高准有限公司 Winding structure, transformer and transmitter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013209104A1 (en) 2013-05-16 2014-11-20 Carl Zeiss Microscopy Gmbh Apparatus and method for spectroscopic analysis
CN105529141A (en) * 2016-01-22 2016-04-27 刘国泉 Novel transformer base and transformer, and transformer terminal wiring method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787799A (en) * 1971-09-15 1974-01-22 Coilform Co Inc Multi-piece coil form assembly
US4247889A (en) * 1979-02-23 1981-01-27 Blaupunkt-Werke Gmbh High-voltage-secondary transformer, particularly television line transformer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1250827A (en) * 1969-06-16 1971-10-20
FR2509515A1 (en) * 1981-07-10 1983-01-14 Orega Electro Mecanique Electrical winding terminal connection system - is for CRT pulse transformers and has insulating radial to defect winding wires when wound using automatic cabling machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787799A (en) * 1971-09-15 1974-01-22 Coilform Co Inc Multi-piece coil form assembly
US4247889A (en) * 1979-02-23 1981-01-27 Blaupunkt-Werke Gmbh High-voltage-secondary transformer, particularly television line transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2339497A (en) * 1998-06-22 2000-01-26 Koito Mfg Co Ltd Transformer and method of assembling it
GB2339497B (en) * 1998-06-22 2000-09-06 Koito Mfg Co Ltd Transformer and method of assembling it
CN105990007A (en) * 2015-01-29 2016-10-05 高准有限公司 Winding structure, transformer and transmitter

Also Published As

Publication number Publication date
ATE21577T1 (en) 1986-09-15
DE3321506A1 (en) 1984-12-20
EP0129656B1 (en) 1986-08-20
DE3460502D1 (en) 1986-09-25

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