EP0124860B1 - Coil bobbin - Google Patents

Coil bobbin Download PDF

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Publication number
EP0124860B1
EP0124860B1 EP84104900A EP84104900A EP0124860B1 EP 0124860 B1 EP0124860 B1 EP 0124860B1 EP 84104900 A EP84104900 A EP 84104900A EP 84104900 A EP84104900 A EP 84104900A EP 0124860 B1 EP0124860 B1 EP 0124860B1
Authority
EP
European Patent Office
Prior art keywords
coil bobbin
holding pins
opening
winding
connecting element
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
Application number
EP84104900A
Other languages
German (de)
French (fr)
Other versions
EP0124860A1 (en
Inventor
Erwin Dipl.-Ing. Müller
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP0124860A1 publication Critical patent/EP0124860A1/en
Application granted granted Critical
Publication of EP0124860B1 publication Critical patent/EP0124860B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/443—Connections to coils
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H2050/446—Details of the insulating support of the coil, e.g. spool, bobbin, former

Definitions

  • the invention relates to a coil former made of insulating material with openings provided in a flange part for the pluggable fastening of metallic connection elements for winding ends.
  • Coils for relays or other switching devices are usually wound with automatic machines and then inserted as a whole into the corresponding device.
  • connection pins are already fixed in the coil former by injecting or plugging in before winding, the winding ends can be wound onto the connection pins directly by the automatic winding machine and soldered to them in a subsequent operation.
  • the object of the invention is to design a coil former in such a way that the winding ends can be mechanically wound onto auxiliary support points in a simple manner and then connected to subsequently inserted metal connecting elements by simple soldering.
  • this object is achieved on a bobbin of the type mentioned at the outset in that retaining pins are formed on at least two opposite edge regions of an opening, which are each at least as wide as the part of a connecting element which can be inserted between them through the opening.
  • two breakpoints for a connecting element between them form a winding base, on which a winding end can be wound so that a connecting element is subsequently inserted between the holding pin or in the loop of the winding end and with the winding end can be soldered.
  • the holding pins either have a shoulder towards their free end or stand together on a stepped surface of the coil body. In this case it is ensured that the winding end is easily accessible for the soldering tool.
  • the connecting element is expediently twisted with its free end between the two holding pins. In this case, the width of the holding pins should correspond to the twisted and thus transverse end of the connecting element.
  • the connecting element can also be fixed to the coil body by a bent tab.
  • FIGS. 1 and 2 show a coil former according to the invention in two views
  • FIG. 3 to 5 in detail each different embodiments of retaining pins with intermediate connecting element and wound winding end.
  • the coil body 1 shown in FIGS. 1 and 2 has a coil tube 2 for receiving a winding and two flanges 3 and 4.
  • An extension 5 is formed on the coil flange 4, which has openings 6 for receiving sheet metal connecting elements, not shown here.
  • Holding pins 7 are formed on both sides of each opening 6, each of which is wider than the opening 6, so that a winding end wound over both holding pins 7 does not hinder the insertion of a connecting element.
  • the holding pins each have a shoulder 8, so that the winding end wound on the free end 7a cannot slide down and thus remains easily accessible for soldering.
  • FIG. 3 shows a perspective view of a detail from the coil former shown in FIGS. 1 and 2.
  • the holding pins 7 arranged on the extension 5 of the bobbin already have a wound winding end 9 which is wound with several turns around the offset ends 7a of the holding pins 7.
  • connection element 10 After winding the coil, a connection element 10 is inserted into the opening 6, so that its free end 10a lies between the holding pins 7. This free end 10a is twisted to fix the connection element. Thereafter, the electrical connection between the winding end 9 and the connecting element 10 can be made in a simple manner by soldering.
  • FIG. 4 shows a somewhat modified embodiment compared to FIG. 3.
  • two holding pins 17 are arranged on an elevated surface 18 of the coil body extension 5, so that the winding end 9 is prevented from slipping in this case as well.
  • the connecting element 10 is inserted and twisted in the same way as before.
  • FIG. 5 A further modification is shown in FIG. 5.
  • Two retaining pins 27 are each shaped so that they surround the connecting element 30 inserted between them in a U-shape.
  • This connecting element 30 is then soldered to the winding end 9 in the slot 31 provided on both sides.
  • a paragraph 28 prevents this too The winding end slides down.
  • this is provided in this embodiment with a lateral tab 32 which lies in a lateral slot 33 of a holding pin 27 and fixes the connecting element 30 on the coil body by lateral bending.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Electromagnets (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

Die Erfindung bezieht sich auf einen Spulenkörper aus Isolierstoff mit in einem Flanschteil vorgesehenen Durchbrüchen zur steckbaren Befestigung von metallischen Anschlußelementen für Wicklungsenden.The invention relates to a coil former made of insulating material with openings provided in a flange part for the pluggable fastening of metallic connection elements for winding ends.

Spulen für Relais oder andere Schaltgeräte werden gewöhnlich mit Automaten gewickelt und dann als ganzes in das entsprechende Gerät eingesetzt. Soweit im Spulenkörper bereits Anschlußstifte vor dem Wickeln durch Einspritzen oder durch Einstecken befestigt sind, können die Wicklungsenden unmittelbar vom Wicklungsautomaten an die Anschlußstifte angewickelt und in einem nachfolgenden Arbeitsgang mit diesen verlötet werden.Coils for relays or other switching devices are usually wound with automatic machines and then inserted as a whole into the corresponding device. Insofar as connection pins are already fixed in the coil former by injecting or plugging in before winding, the winding ends can be wound onto the connection pins directly by the automatic winding machine and soldered to them in a subsequent operation.

Vielfach ist es jedoch aus fertigungstechnischen Gründen nicht möglich, die Spulenanschlußelemente bereits vor dem Wickeln am Spulenkörper anzubringen, beispielsweise, wenn es sich um größere Blech-Anschlußelemente handelt. In diesem Fall ist für das mechanisierte Anwickeln der Spulenenden jeweils ein Hilfsstützpunkt erforderlich, der entweder am Isolierstoff des Spulenkörpers angeformt oder in Form eines Drahtes in diesem verankert sein kann. In diesen Fällen ist es meist arbeitsaufwendig, die Wicklungsenden bzw. die sie tragenden Anschlußdrähte nachträglich mit eingesteckten Blechanschlußteilen zu verbinden.In many cases, however, it is not possible for production-related reasons to attach the coil connection elements to the coil former before winding, for example if larger sheet metal connection elements are involved. In this case, an auxiliary support point is required for the mechanized winding of the coil ends, which can either be molded onto the insulating material of the coil body or anchored in the form of a wire in this. In these cases, it is usually labor intensive to subsequently connect the winding ends or the connecting wires carrying them to inserted sheet metal connecting parts.

Aufgabe der Erfindung ist es, einen Spulenkörper so auszubilden, daß die Wicklungsenden in einfacher Weise mechanisiert an Hilfsstützpunkte angewickelt und danach durch einfaches Löten mit nachträglich eingesteckten metallischen Anschlußelementen verbunden werden können.The object of the invention is to design a coil former in such a way that the winding ends can be mechanically wound onto auxiliary support points in a simple manner and then connected to subsequently inserted metal connecting elements by simple soldering.

Erfindungsgemäß wird diese Aufgabe an einem Spulenkörper der eingangs genannten Art dadurch gelöst, daß zumindest an zwei gegenüberliegenden Randbereichen eines Durchbruches Haltezapfen am Spulenkörper angeformt sind, welche jeweils mindestens so breit sind wie der zwischen ihnen durch den Durchbruch steckbare Teil eines Anschlußelementes.According to the invention, this object is achieved on a bobbin of the type mentioned at the outset in that retaining pins are formed on at least two opposite edge regions of an opening, which are each at least as wide as the part of a connecting element which can be inserted between them through the opening.

Bei dem erfindungsgemäßen Spulenkörper bilden also jeweils zwei einen Durchbruch für ein Anschlußelement zwischen sich einschließende Haltezapfen gemeinsam einen Wickelstützpunkt, auf welchem ein Wicklungsende so aufgewickelt werden kann, daß ein Anschlußelement nachträglich noch zwischen die Haltezapfen bzw. in die Schlaufe des Wicklungsendes eingesteckt und mit dem Wicklungsende verlötet werden kann. Dabei ist es zweckmäßig, daß die Haltezapfen entweder zu ihrem freien Ende hin einen Absatz aufweisen oder gemeinsam auf einer abgesetzten Fläche des Spulenkörpers stehen. In diesem Fall wird sichergestellt, daß das Wicklungsende gut für das Lötwerkzeug zugänglich ist. Das Anschlußelement wird zweckmäßigerweise mit seinem freien Ende zwischen den beiden Haltezapfen verdrallt. In diesem Fall sollten die Haltezapfen in ihrer Breite dem verdrallten und damit querstehenden Ende des Anschlußelementes entsprechen. Das Anschlußelement kann jedoch auch durch einen abgebogenen Lappen am Spulenkörper fixiert werden.In the bobbin according to the invention, two breakpoints for a connecting element between them form a winding base, on which a winding end can be wound so that a connecting element is subsequently inserted between the holding pin or in the loop of the winding end and with the winding end can be soldered. It is expedient that the holding pins either have a shoulder towards their free end or stand together on a stepped surface of the coil body. In this case it is ensured that the winding end is easily accessible for the soldering tool. The connecting element is expediently twisted with its free end between the two holding pins. In this case, the width of the holding pins should correspond to the twisted and thus transverse end of the connecting element. However, the connecting element can also be fixed to the coil body by a bent tab.

Die Erfindung wird nachfolgend an Aus: führungsbeispielen anhand der Zeichnung näher erläutert. Es zeigenThe invention is explained in the following: Examples of management based on the drawing. Show it

Figuren 1 und 2 einen erfindungsgemäßen Spulenkörper in zwei Ansichten,FIGS. 1 and 2 show a coil former according to the invention in two views,

Figuren 3 bis 5 in Detaildarstellung jeweils verschiedene Ausführungsformen von Haltezapfen mit zwischenliegendem Anschlußelement und angewickeltem Wicklungsende.Figures 3 to 5 in detail each different embodiments of retaining pins with intermediate connecting element and wound winding end.

Der in den Fig. 1 und 2 dargestellte Spulenkörper 1 besitzt ein Spulenrohr 2 zur Aufnahme einer Wicklung sowie zwei Flansche 3 und 4. Am Spulenflansch 4 ist ein Ansatz 5 angeformt, welcher Durchbrüche 6 zur Aufnahme von hier nicht dargestellten Blech-Anschlußelementen besitzt. Zu beiden Seiten eines jeden Durchbruchs 6 sind Haltezapfen 7 angeformt, welche jeweils breiter sind als der Durchbruch 6, so daß ein über beide Haltezapfen 7 gewickeltes Wicklungsende das Einstecken eines Anschlußelementes nicht behindert. Die Haltezapfen besitzen jeweils einen Absatz 8, so daß das auf das freie Ende 7a gewickelte Wicklungsende nicht nach unten rutschen kann und somit zum Löten gut zugänglich bleibt.The coil body 1 shown in FIGS. 1 and 2 has a coil tube 2 for receiving a winding and two flanges 3 and 4. An extension 5 is formed on the coil flange 4, which has openings 6 for receiving sheet metal connecting elements, not shown here. Holding pins 7 are formed on both sides of each opening 6, each of which is wider than the opening 6, so that a winding end wound over both holding pins 7 does not hinder the insertion of a connecting element. The holding pins each have a shoulder 8, so that the winding end wound on the free end 7a cannot slide down and thus remains easily accessible for soldering.

In Fig. 3 ist in perspektivischer Darstellung ein Detailausschnitt aus dem in Fig. 1 und 2 dargestellten Spulenkörper gezeigt. Die auf dem Ansatz 5 des Spulenkörpers angeordneten Haltezapfen 7 tragen dabei bereits ein angewickeltes Wicklungsende 9, das mit mehreren Windungen um die abgesetzten Enden 7a der Haltezapfen 7 geschlungen ist.3 shows a perspective view of a detail from the coil former shown in FIGS. 1 and 2. The holding pins 7 arranged on the extension 5 of the bobbin already have a wound winding end 9 which is wound with several turns around the offset ends 7a of the holding pins 7.

Nach dem Wickeln der Spule wird in den Durchbruch 6 ein Anschlußelement 10 eingesteckt, so daß sein freies Ende 10a zwischen den Haltezapfen 7 liegt. Zur Fixierung des Anschlußelementes wird dieses freie Ende 10a verdrallt. Danach kann auf einfache Weise durch Löten die elektrische Verbindung zwischen dem Wicklungsende 9 und dem Anschlußelement 10 hergestellt werden.After winding the coil, a connection element 10 is inserted into the opening 6, so that its free end 10a lies between the holding pins 7. This free end 10a is twisted to fix the connection element. Thereafter, the electrical connection between the winding end 9 and the connecting element 10 can be made in a simple manner by soldering.

Eine etwas abgewandelte Ausführungsform gegenüber Fig. 3 zeigt Fig. 4. Hierbei sind zwei Haltezapfen 17 auf einer erhöhten Fläche 18 des Spulenkörperansatzes 5 angeordnet, so daß auch in diesem Fall ein Abrutschen des Wicklungsendes 9 verhindert wird. Das Anschlußelement 10 ist in gleicher Weise wie vorher eingesteckt und verdrallt.FIG. 4 shows a somewhat modified embodiment compared to FIG. 3. Here, two holding pins 17 are arranged on an elevated surface 18 of the coil body extension 5, so that the winding end 9 is prevented from slipping in this case as well. The connecting element 10 is inserted and twisted in the same way as before.

Eine weitere Abwandlung zeigt Fig. 5. Dabei sind zwei Haltezapfen 27 jeweils so geformt, daß sie das zwischen ihnen eingesteckte Anschlußelement 30 jeweils U-förmig umgeben. Dieses Anschlußelement 30 wird dann in dem beiderseitig vorgesehenen Schlitz 31 mit dem Wicklungsende 9 verlötet. Ein Absatz 28 verhindert auch hier das Abrutschen des Wicklungsendes nach unten. Zur Fixierung des Halteelementes 30 ist dieses bei diesem Ausführungsbeispiel mit einem seitlichen Lappen 32 versehen, welcher in einem seitlichen Schlitz 33 eines Haltezapfens 27 liegt und durch seitliches Biegen das Anschlußelement 30 am Spulenkörper fixiert.A further modification is shown in FIG. 5. Two retaining pins 27 are each shaped so that they surround the connecting element 30 inserted between them in a U-shape. This connecting element 30 is then soldered to the winding end 9 in the slot 31 provided on both sides. A paragraph 28 prevents this too The winding end slides down. To fix the holding element 30, this is provided in this embodiment with a lateral tab 32 which lies in a lateral slot 33 of a holding pin 27 and fixes the connecting element 30 on the coil body by lateral bending.

Claims (7)

1. A coil bobbin of insulating material having openings (6) arranged in a flange component (4) for the plug-in fastening of metallic connecting elements (10 ; 30) for winding ends (9), characterised in that on at least two oppositely arranged edge regions of an opening (6) holding pins (7 ; 17 ; 27) are attached to the coil bobbin (1) which are respectively at least as wide as the component (10a ; 30a) of a connecting element (10 ; 30) which can be inserted between them through the opening (6).
2. A coil bobbin as claimed in Claim 1, characterised in that the holding pins (17) are arranged on a raised surface (18) which surrounds the opening (6).
3. A coil bobbin as claimed in Claim 1. characterised in that the holding pins (7) are offset towards their free end (7a) on their side facing away from the opening (6).
4. A coil bobbin as claimed in one of Claims 1 to 3, with at least one winding, characterised in that each of the holding pins (7 ; 17 ; 27) enclosing an opening (6) is commonly embraced by a winding end (9).
5. A coil bobbin as claimed in one of Claims 1 to 4, characterised in that a connecting element (10) can be inserted into the opening (6), it having one free end (10a) twisted between the holding pins (7 ; 17).
6. A coil bobbin as claimed in Claim 5, characterised in that the width of the holding pins (7 ; 17) corresponds to that of the end (10a) of the connecting element (10) which is transverse as a result of the twisting.
7. A coil bobbin as claimed in one of Claims 1 to 4, characterised in that the holding element (30) inserted between the holding pins (27) is fixed by bending a lug (32).
EP84104900A 1983-05-05 1984-05-02 Coil bobbin Expired EP0124860B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833316456 DE3316456A1 (en) 1983-05-05 1983-05-05 BOBBIN
DE3316456 1983-05-05

Publications (2)

Publication Number Publication Date
EP0124860A1 EP0124860A1 (en) 1984-11-14
EP0124860B1 true EP0124860B1 (en) 1986-08-20

Family

ID=6198239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104900A Expired EP0124860B1 (en) 1983-05-05 1984-05-02 Coil bobbin

Country Status (4)

Country Link
US (1) US4547759A (en)
EP (1) EP0124860B1 (en)
JP (1) JPS6038848B2 (en)
DE (2) DE3316456A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0613284B2 (en) * 1985-01-16 1994-02-23 アイシン精機株式会社 Wiper device
US4675639A (en) * 1985-05-10 1987-06-23 Rca Corporation Transformer assembly and winding therefor
DE3544974A1 (en) * 1985-12-19 1987-06-25 Aweco Kunststofftech Geraete Electromagnet with plug connection
US4945328A (en) * 1988-10-31 1990-07-31 Furnas Electric Company Electrical contactor
US5264816A (en) * 1991-01-09 1993-11-23 Furnas Electric Company Electrical winding termination structure

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL286849A (en) *
US2999962A (en) * 1957-06-10 1961-09-12 Wahl Clipper Corp Coil construction
US3445797A (en) * 1967-03-16 1969-05-20 Mallory & Co Inc P R Inductor coil and bobbin with terminals
US3566322A (en) * 1969-06-20 1971-02-23 Stephen Horbach Bobbin for electrical windings
DE2226034A1 (en) * 1972-05-29 1973-12-20 Vogt & Co Kg PROCESS FOR AUTOMATICALLY ATTACHING WINDING WIRES TO CONNECTING PINS OF SPOOLS
US3928831A (en) * 1974-11-22 1975-12-23 Controls Co Of America Coil and solenoid incorporating same
US3979707A (en) * 1975-02-07 1976-09-07 Ault Incorporated Power-pack assembly
DE2706887B2 (en) * 1977-02-17 1979-06-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Bobbin
US4251911A (en) * 1979-05-14 1981-02-24 Amp Incorporated Method of terminating coil windings
DE3039457A1 (en) * 1980-10-18 1982-05-27 Brown, Boveri & Cie Ag, 6800 Mannheim Coil body with formed coupling socket - has external connections made using latching plug and built-in socket
DE3151943C2 (en) * 1981-12-30 1986-01-23 Kabushiki Kaisha Tamura Seisakusho, Tokio/Tokyo Winding body
US4423399A (en) * 1982-04-23 1983-12-27 Essex Group, Inc. Electromagnetic contactor

Also Published As

Publication number Publication date
DE3460503D1 (en) 1986-09-25
EP0124860A1 (en) 1984-11-14
US4547759A (en) 1985-10-15
DE3316456A1 (en) 1984-11-08
JPS59207607A (en) 1984-11-24
JPS6038848B2 (en) 1985-09-03

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