EP0590741B1 - Transformateur ou inductance - Google Patents

Transformateur ou inductance Download PDF

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Publication number
EP0590741B1
EP0590741B1 EP93250221A EP93250221A EP0590741B1 EP 0590741 B1 EP0590741 B1 EP 0590741B1 EP 93250221 A EP93250221 A EP 93250221A EP 93250221 A EP93250221 A EP 93250221A EP 0590741 B1 EP0590741 B1 EP 0590741B1
Authority
EP
European Patent Office
Prior art keywords
transformer
flanges
plates
choke according
choke
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
EP93250221A
Other languages
German (de)
English (en)
Other versions
EP0590741A1 (fr
Inventor
Peter Dipl.-Ing. Bradt
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 EP0590741A1 publication Critical patent/EP0590741A1/fr
Application granted granted Critical
Publication of EP0590741B1 publication Critical patent/EP0590741B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F27/32—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 transformer or a choke according to the preamble of claim 1.
  • a transformer whose winding body consists of a multi-chamber injection molded part for receiving the transformer windings. Part of the windings should be applied concentrically, with insulating half-shells snapped onto the inner winding separating them mechanically and electrically from the outer winding.
  • This known winding body is specially tailored to a specific type of transformer with three windings of very specific dimensions. Its geometric design precludes its use in transformers with differently designed windings and in transformers for higher electrical outputs.
  • a ferrite transformer is known from DE-U1-89 05 200, the core of which can be constructed from several smaller, E-shaped or E- and I-shaped ferrites, depending on the power requirement. These ferrites penetrate the transformer windings with their central webs and completely enclose them with their yokes and their external webs.
  • the windings consist of several individual windings, without winding bodies, which are arranged next to each other parallel to the parting plane of the ferrite cores.
  • the ferrite cores are fixed by mutual gluing.
  • This known transformer can be different by default design many ferrites for different performances; for this purpose, however, it requires prefabricated winding elements which are adapted to the individual application and which are plugged onto the ferrites.
  • a choke according to the preamble of claim 1 is known, which is suitable for the use of gas and / or vapor discharge lamps.
  • the winding body of the choke has two flanges and two rectangular plates connecting them, the winding winding from the outside around the flanges and the plates.
  • the winding body is made in one piece and thus adapted to a specific winding; Windings that are adapted to other electrical outputs require a differently designed winding body.
  • the object of the invention is to design a transformer or a choke according to the preamble of claim 1 so that he / she can be designed as required for different outputs without the need for specially designed, prefabricated winding elements or complex winding element elements.
  • the windings / windings are to be applied in a known manner to a winding body and the windings are to be placed together with the winding body on the core elements of the transformer / choke or the core elements are to be fitted into the winding body provided with windings.
  • the invention solves this problem by the characterizing features of claim 1.
  • the construction of a winding body from flanges which are always of the same size and at least two plates of predetermined length allows the construction of winding bodies of different sizes to accommodate differently high core sheet stacks or a different number of individual ferrite cores with a minimum of effort .
  • the winding body is formed by simply plugging its individual parts together and thus obtains its strength from the winding / windings wrapping around it. These windings can be applied to the winding body in a known manner using an automatic machine.
  • the cores should consist of E- or E- and I-shaped sheets or according to claim 4 of E- or E- and I-shaped ferrites, which if necessary are to be strung together in a row. This makes it easy to produce cores for different outputs.
  • the stack height of the sheets or ferrites is to be coordinated with the length of the plates spacing the winding flanges, which may have to be done by using ferrites of different thicknesses.
  • a change in the magnetic properties of the transformer / choke core as a whole can be effected according to claim 6 by using ferrites with different magnetic properties and / or according to claim 7 by differently designing the webs on the ferrites or the laminated sheets of the core.
  • Such measures are taken, for. B. to control at least parts of the core into saturation at certain current levels and thus change the transmission properties of the core.
  • the sheets or ferrites of the core should be glued together according to claim 8; in this way, noises when magnetizing the cores are largely avoided, and the transformer or choke is mechanically stable.
  • the yokes of the winding body are preferably designed as plastic injection-molded parts, on which, according to claim 12, angle pieces can be provided for mounting the transformer / choke on any mounting surface.
  • the plates, which keep the flanges at a distance and together with these form the winding body, are preferably made of hard tissue or hard paper executed.
  • At least one layer of an insulating tape is to be arranged between the winding body and the winding. This tape holds the winding body together until it is braced by the winding / windings after it has been applied.
  • An embodiment characterized in claim 13 provides for the flanges to be provided with recesses for the rotationally secure reception of hexagon screws. About these hexagon screws u. a. the winding / windings are contacted.
  • the heads of the hexagon screws pointing inwards to the cores are to be covered according to claim 14 by insulation plates.
  • the electrical separation of the screw heads from the core is achieved through them.
  • the insulation plates according to claim 15 are to be provided with recesses and the flanges with elevations that fit into the recesses.
  • the flanges are to be provided with corresponding recesses.
  • the invention is explained below with reference to an embodiment shown in the drawing.
  • the drawing shows an exploded view of the structure of a transformer designed according to the invention, the illustration of the transformer windings being omitted for reasons of clarity; the arrows indicate the assembly of the transformer during assembly.
  • the transformer core consists of several E-shaped ferrite cores, which work together in pairs. These Ferrite cores, in the exemplary embodiment each two or three pieces FK11 to FK13 and FK21 to FK23 each adjoin one another with their profiled sides; they are later in the winding body of the transformer z. B. determined by gluing with the help of a varnish.
  • the winding body consists of two separate flanges F1, F2, which are of identical construction and are preferably designed as plastic injection-molded parts, and two separate plates P1 and P2 standing vertically on them. These plates are preferably made of hard paper or hard tissue. With their sides facing the two flanges, they are inserted into corresponding recesses A on the inner sides of the two flanges when the winding former is assembled, and provisionally fixed in this position by an insulating tape (not shown) placed around the plates and the flanges. The plates then keep the two yokes at a distance; the distance between the plates corresponds to the width of the central web of the ferrite cores.
  • the winding body pre-fixed with the aid of the insulating tape can now be wound by hand or by machine, the windings wrapping around the two plates P1 and P2 and the parts of the flanges F1 and F2 delimited by them.
  • the ferrite cores are placed onto the winding body from the side, with their central webs reaching between the plates P1 and P2 and the flanges F1 and F2 and the outer webs closing around the windings; the windings run parallel to the separating surface TF between the ferrite cores interacting in pairs.
  • the flanges F1 and F2 have molded angle pieces W11 and W12 or W21 and W22, by means of which the transformer can be attached to any base surface. Further the flanges have recesses B for the non-rotatable reception of hexagon screws S penetrating the flanges from the inside. The transformer windings can be contacted via these hexagon screws; however, the screws can also be used to attach terminals or any other components to the transformer.
  • the flanges in the area of the inside are provided with flat recesses M, into which insulation plates IP can be inserted, which cover the screw heads towards the cores.
  • the flanges and the insulation plates are provided with aligned elevations D and recesses C, by means of which the insulation plates can be fixed to the flanges.
  • plates P1 and P2 of different lengths By using plates P1 and P2 of different lengths, it is possible in a simple manner to produce winding cores of different sizes for transformers with different outputs using the same flanges.
  • the length of the boards to be used is determined by the stack height of the respective transformer core.
  • the available lengths of the plates are advantageously matched to certain stack heights of the ferrites, which result from the stringing together of ferrites of the same width or of different widths.
  • corresponding sheets can of course also be used to build up laminated core packages.
  • sheets or ferrites with different magnetic properties can be used and / or sheets or ferrites with webs of different lengths can be used.
  • E- and I-shaped sheets or ferrites can also be used, in which case the webs of the sheets or ferrites must be long enough to completely penetrate the winding body.
  • Shortened middle legs MS can also be used to achieve a defined characteristic or to build a throttle.
  • the transformer / choke according to the invention allows the construction of transformers with different powers using uniform flanges; Different lengths only have to be provided for the size of the respective transformer / choke, by means of which the flanges are assembled to form bobbins.
  • the bobbins can be easily assembled, which can happen shortly before they are wound, so that very little space is required for storage, in contrast to the provision of one-piece bobbins.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Claims (16)

  1. Transformateur ou inductance comprenant une carcasse de bobine, qui reçoit vers l'extérieur le bobinage/ les bobinages, et vers l'intérieur les barrettes médianes d'au moins un noyau (FK11 à FD23) en forme de E et qui est constituée de deux flasques (F1,F2) et, entre ceux-ci, d'au moins deux plaques (P1,P2) rectangulaires qui leur sont perpendiculaires, et dans lequel le noyau vient, par sa barrette (MS) médiane, par le côté entre les plaques (P1, P2) et s'applique, par ses barrettes (AS) extérieures par le côté autour du bobinage/des bobinages du transformateur ou de l'inductance, qui entoure en une couche ou en plusieurs couches les plaques et les flasques de la carcasse de bobine, caractérisé
    en ce qu'il est prévu des plaques (P1,P2) distinctes et des flasques (F1,F2) distincts, les plaques étant maintenues entre les flasques positivement et/ou par complémentarité de formes en venant au moins partiellement dans des évidements correspondants ménagés sur le côté intérieur des flasques.
  2. Transformateur ou inductance suivant la revendication 1,
    caractérisé
    en ce que la longueur des plaques (P1,P2) déterminant la distance entre les flasques (F1,F2), peut être choisie dans une trame prescrite pour construire des transformateurs/inductances de puissances différentes.
  3. Transformateur ou inductance suivant la revendication 1,
    caractérisé
    en ce que le noyau est constitué de tôles coopérant par paires en forme de E ou en forme de E et de I.
  4. Transformateur ou inductance suivant la revendication 1,
    caractérisé
    en ce que le noyau est constitué de ferrite (FK11 à FK13, FK21 à FK23) d'épaisseur donnée coopérant par paires en forme de E ou en forme de E et de I qui, en cas de besoin, peuvent être mises les unes à la suite des autres.
  5. Transformateur ou inductance suivant la revendication 4 ou suivant les revendications 2 et 4,
    caractérisé
    en ce que l'épaisseur des ferrites peut être choisie dans une trame prescrite qui est en harmonie avec la trame des plaques.
  6. Transformateur ou inductance suivant la revendication 3, 4 ou 5,
    caractérisé
    en ce que les tôles ou les ferrites ont des propriétés magnétiques différentes.
  7. Transformateur ou inductance suivant l'une des revendications 3 à 6,
    caractérisé
    en ce que les barrettes (MS, AS) des tôles ou des ferrites ont des longueurs différentes.
  8. Transformateur ou inductance suivant l'une des revendications 3 à 7,
    caractérisé
    en ce que les tôles ou les ferrites sont collées les unes aux autres.
  9. Transformateur ou inductance suivant la revendication 1,
    caractérisé
    en ce que les flasques (F1,F2) sont sous forme de pièces en matière plastique moulées par injection.
  10. Transformateur ou inductance suivant la revendication 1,
    caractérisé
    en ce que les plaques (P1,P2) sont en stratifié de matière plastique ou en stratifié au papier.
  11. Transformateur ou inductance suivant la revendication 1, 9 ou 10,
    caractérisé
    en ce qu'il est prévu entre la carcasse de bobine et le bobinage/les bobinages au moins une couche d'un ruban isolant.
  12. Transformateur ou inductance suivant la revendication 9,
    caractérisé
    en ce que les flasques (F1,F2) sont munis de cornières (W11, W12,W21,W22) pour le montage du transformateur/de l'inductance.
  13. Transformateur ou inductance suivant la revendication 9 ou 12,
    caractérisé
    en ce que les flasques (F1,F2) sont munis d'évidements (B) pour la réception sans possibilité de tourner de vis (S) à six pans traversant les flasques depuis la face intérieure.
  14. Transformateur ou inductance suivant la revendication 13,
    caractérisé
    en ce que les flasques (F1, F2) ont, sur leur face intérieure, des cuvettes (M) plates de réception de plaques (IP) isolantes recouvrant les têtes de vis (S) à six pans.
  15. Transformateur ou inductance suivant la revendication 13 ou 14,
    caractérisé
    en ce que les flasques (F1,F2) ont des parties saillantes (D) et les plaques (IP) isolantes des cavités (C) alignées en vue d'immobiliser les plaques isolantes sur les flasques.
  16. Transformateur ou inductance suivant la revendication 1, 9, 12, 14 ou 15,
    caractérisé
    en ce que les flasques (F1,F2) sont munis de trous pour faire sortir de la carcasse de bobine les bornes du bobinage.
EP93250221A 1992-09-28 1993-08-05 Transformateur ou inductance Expired - Lifetime EP0590741B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9213190U 1992-09-28
DE9213190U DE9213190U1 (de) 1992-09-28 1992-09-28 Transformator oder Drossel

Publications (2)

Publication Number Publication Date
EP0590741A1 EP0590741A1 (fr) 1994-04-06
EP0590741B1 true EP0590741B1 (fr) 1996-04-03

Family

ID=6884332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93250221A Expired - Lifetime EP0590741B1 (fr) 1992-09-28 1993-08-05 Transformateur ou inductance

Country Status (3)

Country Link
EP (1) EP0590741B1 (fr)
AT (1) ATE136393T1 (fr)
DE (2) DE9213190U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638957A1 (de) * 1996-09-12 1998-03-26 Siemens Ag Wickelkörper für einen Transformator oder eine Drossel
DE19641387A1 (de) * 1996-09-27 1998-04-09 Siemens Ag Wickelkörper für einen Transformator oder eine Drossel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29913485U1 (de) * 1999-08-02 2000-12-07 Tridonic Bauelemente Spule mit variabler Induktivität
US9007794B2 (en) * 2011-08-18 2015-04-14 Solidstate Controls, Llc Control system for a power supply having a first half-bridge leg and a second half-bridge leg
DE102014107829B4 (de) * 2014-06-04 2020-07-30 Michael Riedel Transformatorenbau Gmbh Induktivität sowie Herstellungsverfahren hierfür und Baukasten
EP3054465A1 (fr) * 2015-02-05 2016-08-10 ABB Technology AG Filtre passe-bas passif et limiteur de courant avec un filtre passe-bas passif

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481190A (en) * 1921-05-31 1924-01-15 Holtzer Cabot Electric Co Spool
US2428826A (en) * 1944-10-27 1947-10-14 Shure Bros Coil and support construction
FR1021257A (fr) * 1950-07-03 1953-02-17 Perfectionnements aux carcasses de transformateurs
DE1255797B (de) * 1962-01-10 1967-12-07 Lloyd Dynamo Werke G M B H Transformator mit kammartig ausgebildeten Wicklungsstuetzkoerpern
NL7401806A (nl) * 1974-02-09 1975-08-12 Philips Nv Induktieve stabilisatie-ballast voor een gas- dampontladingslamp.
US4668930A (en) * 1985-10-21 1987-05-26 Webster Electric Company, Inc. Transformer coil construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638957A1 (de) * 1996-09-12 1998-03-26 Siemens Ag Wickelkörper für einen Transformator oder eine Drossel
DE19638957C2 (de) * 1996-09-12 1999-05-27 Siemens Ag Wickelkörper für einen Transformator oder eine Drossel
DE19641387A1 (de) * 1996-09-27 1998-04-09 Siemens Ag Wickelkörper für einen Transformator oder eine Drossel
DE19641387C2 (de) * 1996-09-27 2000-09-07 Siemens Ag Wickelkörper für einen Transformator oder eine Drossel

Also Published As

Publication number Publication date
EP0590741A1 (fr) 1994-04-06
DE59302100D1 (de) 1996-05-09
ATE136393T1 (de) 1996-04-15
DE9213190U1 (de) 1992-11-26

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