EP0069973A1 - Bobine de transformateur - Google Patents

Bobine de transformateur Download PDF

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Publication number
EP0069973A1
EP0069973A1 EP82106040A EP82106040A EP0069973A1 EP 0069973 A1 EP0069973 A1 EP 0069973A1 EP 82106040 A EP82106040 A EP 82106040A EP 82106040 A EP82106040 A EP 82106040A EP 0069973 A1 EP0069973 A1 EP 0069973A1
Authority
EP
European Patent Office
Prior art keywords
coil
winding
support points
winding support
core
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
EP82106040A
Other languages
German (de)
English (en)
Other versions
EP0069973B1 (fr
Inventor
Erwin Ing.grad. Müller
Josef Robl
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 EP0069973A1 publication Critical patent/EP0069973A1/fr
Application granted granted Critical
Publication of EP0069973B1 publication Critical patent/EP0069973B1/fr
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
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • 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

Definitions

  • the invention relates to a coil former made of insulating material with flanges formed on both ends and with a core bore for receiving an axially arranged iron core which extends beyond the coil flanges.
  • Coil formers with and without iron core are known in many forms. For certain applications, however, problems arise in production, for example if the iron core of a transformer coil is widened at both ends in such a way that it can no longer be inserted in one piece into the core bore. In such coils, it is therefore customary either to isolate the core, which is provided in one piece with two iron flanges, without the bobbin, only with varnish on the surface, or to line it with insulating films and then to wind it, or to put on plastic half-shells instead of this varnish insulation.
  • the object of the invention is to design a bobbin of the type mentioned at the outset in such a way that both the manufacture and the winding and, if appropriate, the assembly of a multi-part slotted core is possible in a simple and inexpensive manner.
  • the one-piece coil former has an integrally formed longitudinal rib in the region of the core bore, in the extension of which at least one coil flange carries winding support points.
  • the inventive design of a coil former makes it possible, for example, to insert a two-part slotted core from the two ends into the coil former and to align the slots in each case on the longitudinal rib of the coil former.
  • winding support points in the extension of this longitudinal rib these also come into the slot of the coil core when the core outside the coil is enlarged in a disk shape over the entire radius of the coil flange.
  • These winding support points can be provided on a rib-shaped extension of the longitudinal rib, this extension coming to rest in a radial recess in the core, which for example extends outside the coil to form an iron flange.
  • winding support points are expediently arranged one above the other in the radial direction on the coil flange in order to obtain good insulation for the applied winding ends even in a narrow slot in the iron flange.
  • the winding support points themselves can be formed on the coil flange or on the rib-shaped extension in the form of two hook-shaped lugs.
  • the winding axes of the two winding support points form such an angle with respect to one another that, depending on the winding movement of the wire on a winding support point because other winding base is not touched. The angle required for this can be determined in individual cases on the basis of the size relationships of the coil flange and the winding support points.
  • the winding support points have grooves which are recessed at least on one side, as a result of which the distance between the wound winding ends and a slotted iron core is also increased. It would also be beneficial to fix the winding ends in recessed grooves all around, but in general the one-sided groove is easier to manufacture using tools. Furthermore, it is expedient that the coil flange carrying the winding support points is axially slotted next to these winding support points and thus enables the wire entry of the winding start.
  • the winding support points can also be embedded in the form of wires in the end of the longitudinal rib or in the extension thereof.
  • further metal inserts can also be embedded in the longitudinal rib, for example in order to shift the phase in the case of a transformer. With a corresponding design of the longitudinal rib with chambers, metal parts of this type can also be inserted subsequently.
  • a bobbin 1 which preferably consists of elastic, temperature-resistant, thermoplastic insulating material.
  • the winding 3 which is only indicated, is applied to the coil tube 2 and is delimited by the flanges 4 and 5 at both ends of the coil body.
  • the core bore 6 serves to receive an iron core, as is shown, for example, in FIG. 4.
  • the bobbin has a longitudinal rib 7 in the bore 6, which extends beyond the flange 4 into a rib-shaped extension 8 and forms two hook-shaped winding support points 9 and 10. This makes it possible to use a core with an iron flange overlapping the coil flange 4 if it has a slot for receiving the rib-shaped extension 8.
  • This slot can be relatively narrow. be, since the winding support points 9 and 10 are arranged radially one above the other in a line. This means that coils that are to accommodate a core with iron flanges can also be wound quickly and inexpensively, since even very thin untwisted winding ends can be wound quickly at the winding support points 9 and 10 and the binding and knotting of the winding ends previously required in such coils is no longer required. In addition, due to the lack of the tying knots, there is a considerable gain in changing space.
  • the coil flange 4 has a slot 12 for the wire entry of the winding start 11, the slot edges are also rounded, and an inlet bevel 13 is formed on the coil flange with a small angle.
  • the winding end 14 is again in turn guided through the slot 12 of the coil flange 4 onto the winding base 10.
  • Both winding support points 9 and 10 are inclined relative to one another in their winding axis in such a way that when the one support point is wound up, the other one Looping movement of the wire is not impeded.
  • the angles of the winding plane ⁇ at the winding base 9 and 0 at the winding base 10 are chosen to be correspondingly large with respect to the end plane of the coil former, taking into account the distances between these two winding bases and the other dimensions.
  • winding support points 9 and 10 secure the winding ends against slipping.
  • these winding support points continue to have grooves 15 on one side, so that the applied winding ends can be flush with the lateral surface of the winding support points.
  • the winding support points could also be provided with grooves on all sides, but this would result in a more complicated tool design for the manufacture of the coil former.
  • the coil flanges 4 and 5 are on the one hand tapered outwards for reasons of strength and shape, and on the other hand to facilitate mechanized winding and are rounded on the inside edges.
  • FIGS. 4 and 5 show the application of the coil former from FIGS. 1 to 3 in a transformer, as is used, for example, in a slip ring-less resolver.
  • a two-part core is arranged in the coil former 1 with the winding 2, the two parts 16 and 17 of which are each inserted into the core bore from the coil ends.
  • these core halves 16 and 17 are each sleeve-shaped and placed with their inner bore on a rotor shaft 18.
  • Core halves are each formed into iron flanges 19 and 20, which extend in the radial direction next to the coil flanges and each form air gaps 25 with respect to the iron core 21 of a stator coil 22 (bearings are not shown).
  • the core halves 16 and 17 including their iron flanges 19 and 20 are continuously provided with a slot 23, by means of which they are aligned with the longitudinal rib 7 of the coil body 1.
  • the slot 23 is expanded to a recess 24 in order to ensure a sufficient insulating distance from the wound winding ends of the coil 3.
  • 6 to 10 show modified versions of the bobbin 1 in a schematic representation.
  • 6 shows a bobbin 31 which has a chamber 33 in the longitudinal rib 32 which, for example, can accommodate short-circuiting pieces for phase shifting a transformer.
  • Such metal parts can be subsequently inserted into the chamber 33 or embedded during the manufacture of the coil former.
  • winding support points which also serve as soldering support points, can be provided, for example, on the invisible side of the opposite coil flange 34.
  • FIG. 7 shows a coil body 41 with a longitudinal rib 42, in which two wire pieces 44 and 45 are embedded as winding support points in the area of the coil flange 43.
  • the longitudinal rib 52 on the coil flange 53 has an extension 54 which also has embedded winding support points in the form of wires 55 and 56.
  • the wires are arranged at an angle to one another such that the winding movement of the wire around one winding base does not hinder the other winding base.
  • bobbin 61 the longitudinal rib 62 of which forms two webs 63 and 64. These webs in turn form a chamber for inserts, such as short-circuit pieces or other metal inserts.
  • these webs 63 and 64 each have extensions 65 and 66, which extend along the coil flange 67 in the radial direction. This enables angled inserts to be insulated up to the outer diameter of the coil flange.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
EP82106040A 1981-07-10 1982-07-06 Bobine de transformateur Expired EP0069973B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3127341A DE3127341C2 (de) 1981-07-10 1981-07-10 Transformatorspule
DE3127341 1981-07-10

Publications (2)

Publication Number Publication Date
EP0069973A1 true EP0069973A1 (fr) 1983-01-19
EP0069973B1 EP0069973B1 (fr) 1985-11-13

Family

ID=6136635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106040A Expired EP0069973B1 (fr) 1981-07-10 1982-07-06 Bobine de transformateur

Country Status (2)

Country Link
EP (1) EP0069973B1 (fr)
DE (2) DE3127341C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000690A1 (fr) * 1991-06-21 1993-01-07 Motorola Lighting, Inc. Bobine pour enroulements electriques
CN111344829A (zh) * 2017-11-21 2020-06-26 三菱电机株式会社 起动器用电磁开关装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1919729A1 (de) * 1969-04-18 1970-11-05 Rau Swf Autozubehoer Spulenkoerper fuer Relais,Warnsummer od.dgl.
DE2208457A1 (de) * 1972-02-23 1973-08-30 Loewe Opta Gmbh Wickelkoerper fuer transformatoren
DE2236241A1 (de) * 1972-07-24 1974-02-07 Siemens Ag Spulenkoerper
DE1790110B2 (de) * 1968-09-12 1974-10-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung zur Halterung von Anschlußlaschen für Steckanschlüsse an Kunststoffteilen elektrischer Geräte
DE2717081A1 (de) * 1977-04-18 1978-11-09 Bbc Brown Boveri & Cie Spulenkoerper
US4166265A (en) * 1978-02-03 1979-08-28 Amp Incorporated Coil bobbins and termination of coil windings

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779490U (de) * 1958-03-01 1958-12-18 Standard Elektrik Lorenz Ag Spule mit massekern.
DE1942992U (de) * 1966-03-15 1966-07-28 Licentia Gmbh Spulenkoerper fuer gekapselte spulen.
DE1539679B2 (de) * 1966-03-25 1973-09-13 Blaupunkt-Werke Gmbh, 3200 Hildesheim Spulenkörper aus Kunststoff
DE2330301C3 (de) * 1973-06-14 1979-01-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zum Einstellen der Zugentlastung von Spulendrahtenden von Spulen, insbesondere für elektromagnetische Relais

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1790110B2 (de) * 1968-09-12 1974-10-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung zur Halterung von Anschlußlaschen für Steckanschlüsse an Kunststoffteilen elektrischer Geräte
DE1919729A1 (de) * 1969-04-18 1970-11-05 Rau Swf Autozubehoer Spulenkoerper fuer Relais,Warnsummer od.dgl.
DE2208457A1 (de) * 1972-02-23 1973-08-30 Loewe Opta Gmbh Wickelkoerper fuer transformatoren
DE2236241A1 (de) * 1972-07-24 1974-02-07 Siemens Ag Spulenkoerper
DE2717081A1 (de) * 1977-04-18 1978-11-09 Bbc Brown Boveri & Cie Spulenkoerper
US4166265A (en) * 1978-02-03 1979-08-28 Amp Incorporated Coil bobbins and termination of coil windings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000690A1 (fr) * 1991-06-21 1993-01-07 Motorola Lighting, Inc. Bobine pour enroulements electriques
CN111344829A (zh) * 2017-11-21 2020-06-26 三菱电机株式会社 起动器用电磁开关装置

Also Published As

Publication number Publication date
DE3267408D1 (de) 1985-12-19
DE3127341A1 (de) 1983-01-27
EP0069973B1 (fr) 1985-11-13
DE3127341C2 (de) 1983-12-08

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