EP0395012B1 - Spulenkörper für elektrische Spulen - Google Patents

Spulenkörper für elektrische Spulen Download PDF

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Publication number
EP0395012B1
EP0395012B1 EP90107862A EP90107862A EP0395012B1 EP 0395012 B1 EP0395012 B1 EP 0395012B1 EP 90107862 A EP90107862 A EP 90107862A EP 90107862 A EP90107862 A EP 90107862A EP 0395012 B1 EP0395012 B1 EP 0395012B1
Authority
EP
European Patent Office
Prior art keywords
solder
winding
coil former
wire
whose
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
Application number
EP90107862A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0395012A1 (de
Inventor
Horst Ing.-Grad. Scheffler
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
Priority to AT90107862T priority Critical patent/ATE93990T1/de
Publication of EP0395012A1 publication Critical patent/EP0395012A1/de
Application granted granted Critical
Publication of EP0395012B1 publication Critical patent/EP0395012B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00Coils
    • H01F5/04Arrangements of electric connections to coils, e.g. leads
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00Coils
    • H01F5/04Arrangements of electric connections to coils, e.g. leads
    • H01F2005/046Details of formers and pin terminals related to mounting on printed circuits
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/4902Electromagnet, transformer or inductor

Definitions

  • the invention relates to a bobbin for electrical coils with molded on the bobbin flange solder terminal strips with series-arranged soldering eye connections, one end of which is for the loading and winding of winding wire ends and the other ends of which are pins for mounting on printed circuit boards.
  • electrical coils e.g. consist of a wound bobbin and ferrite E core halves, which dip into the bobbin with their central slugs, in which larger electrical currents flow mainly in the secondary circuit, are generally thicker wires with a diameter of at least 0.45 mm due to the current load occurring there and strands required.
  • winding curls When such strong winding wires are wound onto straight connection pins, there is a risk that these wire ends, usually referred to as winding curls, will spring open.
  • winding wire ends are subsequently soldered onto the connecting pins and possibly already onto the corresponding conductor tracks of printed circuit boards, this can result in so-called “cold soldering points” and contact bridges to adjacent connecting pins.
  • winding ends are unambiguous in their position in relation to the coil former connection or respective connecting pin, i.e. are defined either positively or non-positively.
  • thinner winding wires e.g. Wires in strand thickness can be automatically wound onto the connecting pins by means of automatic winding machines.
  • soldering eye connections which meet the requirements with regard to the fixing of thick wires and strands, are used, for example, in the known EC coil formers shown in FIGS. 1, 1a.
  • very thin wires can also be wound onto such soldering eye connections; but this is a relative pivoting movement between the bobbin and wire guide of the automatic winder from 90 ° - winding position - winding position - necessary. This further delays the already time-consuming start-up process.
  • solder eyelet connections of these known EC bobbins are stamped parts which are tin-plated and have to be subsequently inserted into the slot-shaped recesses in the sprayed bobbin.
  • the manufacturing steps of stamping, tinning and equipping require considerable effort and thus tax the coil formers.
  • an angular soldering tab which is held in a carrier body of a coil body and has two legs standing at right angles to one another, one of which has a hook-shaped end and one has a tapering end.
  • the hook-shaped ends can serve, for example, for fastening the winding ends of an electrical winding arranged on the coil former, while the tapering ends can be soldered, for example, to a circuit board.
  • the present invention has for its object to provide a bobbin for electrical coils of the type mentioned, which can be produced with little effort and in addition to automatically winding even extremely thin wires, for. B. is suitable in strand thickness.
  • the invention provides for the bobbin according to the preamble of the claim that the solder eyelet connections are inserted into the solder connection strips rectangular wire pins, one end of which is curved in a U-shape, and that the distance between the solder connection strips and the end faces of the U- shaped curved ends is chosen at least so large that wires, preferably round or square wires, even with stranded wire, can be automatically wound onto these ends.
  • wire pins as solder eye connections, these can be continuously withdrawn from a wire reel and injected directly into the solder terminal strips of the coil body when the coil body is being sprayed, an automatic U-shaped curvature of one of the two wire pin ends being possible at the same time.
  • strands and thick wires are used as coil winding wires, these are formed by the wire execution slot, which may be formed partly in the coil former flange and partly in the solder connection strips, and by the U-shaped curved end of the solder connection pulled, with the strands or wires jamming between the solder terminal block and the solder connection. In addition, the winding ends are secured against slipping.
  • solder connection strip in which the soldering eye connection is embedded, and the end faces of its U-shaped curved ends is chosen at least so large that the wire guide tube of an automatic winder can "tumble" through the intermediate space thus created, thinner wires can also be used are automatically wound onto the soldering eye connection without having to perform a pivoting movement of the wire guide tube after winding the winding support of the coil former for the purpose of winding the end of the winding wire onto the soldering eye.
  • the coil former 1 according to FIG. 1, 1a, already mentioned at the beginning, has a coil former 2 with coil former flanges 3, 4 and solder connection strips 5, 6.
  • solder terminal strips 5, 6 have rectangular cutouts indicated by dashed lines in FIG. 1, into which the soldering eye connections 7 punched out of sheet metal are inserted, as shown in FIG. 1a, one end of which has soldering eyes 8 and the other ends of which have pin-shaped ends 9 for placement on printed circuit boards.
  • the coil former 10 according to FIGS. 2, 2a and 3 has a winding carrier 17 indicated in broken lines, coil former flanges 16 and solder terminal strips 11 integrally formed thereon, which have at least one wire execution slot 18 and elements 20, 20, into which the wire-pin-shaped solder terminals 12, 12 are injected.
  • These right-angled solder connections are each U-shaped in the areas of their one ends 13 or are designed in their end areas 14 as pins, by means of which the coil formers or their connections can be placed on printed circuit boards.
  • a winding wire end 15 of a thick winding wire is pulled through the wire execution slot 18 of the coil former 10 and through the U-shaped end 13 of the soldering eye connection 12, whereby it extends between the wall of the element 20 of the soldering terminal block 11 and the soldering eyes -The connection is jammed and thus also secured against slipping.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Mushroom Cultivation (AREA)
  • External Artificial Organs (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP90107862A 1989-04-25 1990-04-25 Spulenkörper für elektrische Spulen Expired - Lifetime EP0395012B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90107862T ATE93990T1 (de) 1989-04-25 1990-04-25 Spulenkoerper fuer elektrische spulen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8905229U DE8905229U1 (de) 1989-04-25 1989-04-25 Oberflächenmontierbare elektrische Spule
DE8905229U 1989-04-25

Publications (2)

Publication Number Publication Date
EP0395012A1 EP0395012A1 (de) 1990-10-31
EP0395012B1 true EP0395012B1 (de) 1993-09-01

Family

ID=6838667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107862A Expired - Lifetime EP0395012B1 (de) 1989-04-25 1990-04-25 Spulenkörper für elektrische Spulen

Country Status (7)

Country Link
US (1) US5235305A (ja)
EP (1) EP0395012B1 (ja)
AT (1) ATE93990T1 (ja)
CA (1) CA2015123A1 (ja)
DE (2) DE8905229U1 (ja)
ES (1) ES2043170T3 (ja)
FI (1) FI902058A0 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309130A (en) * 1992-10-26 1994-05-03 Pulse Engineering, Inc. Self leaded surface mount coil lead form
US5320206A (en) * 1993-05-03 1994-06-14 Ogura Corporation Coil mounting and terminals for an electromagnetic clutch
TW506612U (en) * 2000-10-30 2002-10-11 Delta Electronics Inc Improved line-exiting apparatus of device
EP2009650A1 (en) * 2006-04-20 2008-12-31 Panasonic Corporation High-voltage transformer
US7456717B2 (en) * 2007-02-02 2008-11-25 Astec International Limited Electrical pin-type connector
KR20140145663A (ko) * 2013-06-13 2014-12-24 삼성전기주식회사 스테이터 코어의 코일 결선구조
TWM471092U (zh) * 2013-10-21 2014-01-21 Bothhand Entpr Inc 電子元件座
DE102018119331A1 (de) * 2018-08-08 2020-02-13 Endress+Hauser Flowtec Ag Herstellungsverfahren einer Spulenvorrichtung, Spulenvorrichtung, Messaufnehmer mit Spulenvorrichtung, Messgerät mit einem Messaufnehmer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB611347A (en) * 1945-05-05 1948-10-28 Stackpole Carbon Co Improvements in or relating to formers for electric inductance and like coils
DE2320820A1 (de) * 1973-04-25 1974-11-21 Lothar Sachsse Induktionsspule mit hilfsflanschen
US4010435A (en) * 1975-06-04 1977-03-01 Katumi Shigehara Terminals for coil bobbin
DE2612582C3 (de) * 1976-03-24 1978-11-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Herstellung eines Spulenkörpers mit eingespritzten Anschlußstiften
DE2617466A1 (de) * 1976-04-21 1977-11-03 Siemens Ag Spulenkoerper
DE3138936C1 (de) * 1981-09-30 1983-02-03 Norbert 5275 Bergneustadt Weiner Trägerkörper für eine winkelige Lötfahne
JPS6329916A (ja) * 1986-07-23 1988-02-08 Matsushita Electric Ind Co Ltd トランス
EP0304593A1 (de) * 1987-08-24 1989-03-01 Siemens Aktiengesellschaft SMD-Baustein
GB2229427B (en) * 1989-03-17 1993-04-14 Hardall International Limited Refuse chute

Also Published As

Publication number Publication date
ES2043170T3 (es) 1993-12-16
CA2015123A1 (en) 1990-10-25
DE59002520D1 (de) 1993-10-07
FI902058A0 (fi) 1990-04-24
DE8905229U1 (de) 1989-06-29
ATE93990T1 (de) 1993-09-15
US5235305A (en) 1993-08-10
EP0395012A1 (de) 1990-10-31

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