EP1085535B1 - Transformateur planaire - Google Patents

Transformateur planaire Download PDF

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Publication number
EP1085535B1
EP1085535B1 EP00116058A EP00116058A EP1085535B1 EP 1085535 B1 EP1085535 B1 EP 1085535B1 EP 00116058 A EP00116058 A EP 00116058A EP 00116058 A EP00116058 A EP 00116058A EP 1085535 B1 EP1085535 B1 EP 1085535B1
Authority
EP
European Patent Office
Prior art keywords
planar transformer
turns
transformer according
current
carrier
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
EP00116058A
Other languages
German (de)
English (en)
Other versions
EP1085535A1 (fr
Inventor
Matthias Haubner
Karl Stoll
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.)
TDK Electronics AG
Original Assignee
Epcos 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 Epcos AG filed Critical Epcos AG
Publication of EP1085535A1 publication Critical patent/EP1085535A1/fr
Application granted granted Critical
Publication of EP1085535B1 publication Critical patent/EP1085535B1/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
    • H01F27/2847—Sheets; Strips
    • H01F27/2852—Construction of conductive connections, of leads
    • 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
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • 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
    • H01F27/292—Surface mounted devices

Definitions

  • the invention relates to a planar transformer with high-current windings, a multi-layer structure, the layers of which are formed by flat electrically conductive windings and insulations arranged therebetween, a magnetic core surrounding the windings and a support for the multi-layer structure.
  • a bobbin for a flat transformer consisting of a multi-layer structure, in which planar windings are arranged one above the other and are integrated in a housing.
  • a flat transformer consisting of a multi-layer structure in which planar windings and insulating layers are arranged one above the other and have a multi-part bobbin as a stabilizing carrier.
  • a bobbin for a flat coil in which on a carrier circuit boards are stacked, each having one or more windings for the coil winding. In the carrier pins are pressed, which are used for electrical connection of the circuit boards.
  • the object of the invention is to provide a planar transformer of the type mentioned, in which the electrical contacting of the high current windings is simplified.
  • the support can be made of plastic, for example by plastic injection molding.
  • the carrier and the high-current windings integrated in it have the shape of a rectangular and square frame with a center hole through which a part of the magnetic core protrudes.
  • the multilayer structure formed from the flat electrically conductive windings and insulations arranged therebetween can be arranged on the top side and / or on the underside of the carrier.
  • the led out of the carrier terminals of the high current windings may be formed in the form of connecting lugs and are preferably led out laterally on a frame side.
  • On the opposite side of the frame of the carrier further connections in the form of pins or for SMD technology for contacting the existing multi-layer structure (multilayer) turns are provided.
  • the carrier thus forms a connection carrier for all turns of the planar transformer.
  • the high current windings may be formed as shaped pieces of an electrically conductive material, e.g. Copper, be formed.
  • the high-current windings are formed as stampings or straps.
  • a high-current winding or can be arranged a plurality of high-current windings In the carrier, a high-current winding or can be arranged a plurality of high-current windings.
  • the arrangement and the lateral lead-out of the high-current power connections is preferably symmetrical to a center plane of the carrier, wherein the high-current windings are arranged in the carrier in several levels.
  • a carrier 1 is used, in which one or more high current windings 3 are integrated.
  • two high-current windings 3 are integrated into the carrier 1.
  • the high current windings 3 are located in superimposed planes in the carrier 1.
  • This consists of plastic and is made in particular by plastic injection molding.
  • the carrier 1 has the shape of a square or rectangular frame, as can be seen from the figures. However, the carrier 1 may also have a circular frame or another shape adapted to the purpose. This shape is the respective high-current winding 3 adapted.
  • the respective high-current winding consists of a molded part which is formed from a conductive material, in particular copper. Preferably, it is stamped parts made of copper. How out Fig. 2 can be seen, the respective high current winding is formed as a flat disc.
  • the frame-shaped carrier 1 and the high-current windings integrated in it have a center hole 4, through which in the assembled state a center piece of a magnetic core 6 protrudes.
  • the protruding into the central hole 4 part of the magnetic core 6 is surrounded by the high current windings 3.
  • Ports 5 in the form of connecting lugs are integrally formed on each high-current winding 3. These connections protrude laterally from the carrier 1. In a preferred manner, the terminals 5 project laterally out of a frame part of the carrier 1. The respective terminals 5 are parallel to each other. In the arrangement of several high-current windings in the carrier 1 have this one with respect to a central plane mirror image arrangement of the lead out terminals 5, as shown in particular from Fig. 1 can be seen. The high current windings can be isolated from each other by insulating coating, such as paint.
  • the respective multi-layer structure may be formed as a standard multilayer and, as shown in Fig. 3 can be seen, at the top and the bottom of the carrier 1 are arranged.
  • the respective multilayer structure 7 contains turns in the form of copper disks or copper laminations on plastic substrates or otherwise formed flat and flat conductors, which are insulated from each other by insulating layers. It is also possible to use a plurality of multilayer structures 7 (standard multilayer) in a stacked arrangement, as is the case in the exemplary embodiment of FIG Fig. 4 is shown. In this embodiment, the stack of standard multilayer is arranged on the upper side of the carrier 1.
  • the pins 2 are used for receiving and connecting a multi-layer structure (multilayer) or other winding parts.
  • the connecting pieces 2 protrude from the carrier both at the top and at the bottom. At the bottom of the carrier, the connection to the motherboard via the pins 2 take place. This is done with the same pins as the contacting with the winding parts of the multi-layer structure. 7

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (11)

  1. Transformateur planaire comprenant :
    - des spires (3) pour du courant intense,
    - une structure (7) à plusieurs couches, dont les couches sont formées de spires plates et conductrices de l'électricité et d'isolants disposés entre elles,
    - un noyau (6) magnétique entouré par les spires,
    - un support (1) , en forme de cadre en matière plastique de la structure (7) à plusieurs couches, les spires (3) pour du courant intense étant intégrées dans le support (1) en étant isolées les unes des autres et du support sortent latéralement des bornes (5) électrique de courant pour les spires pour du courant intense,
    caractérisé
    - en ce que les broches (2) de borne pour les spires de la structure à plusieurs couches passent à travers le support et en sortent en haut et en bas.
  2. Transformateur planaire suivant la revendication 1, dans lequel les spires (3) pour du courant intense sont formées de pièces moulées, plates, en un matériau conducteur de l'électricité.
  3. Transformateur planaire suivant la revendication 2, dans lequel les spires (3) pour du courant intense sont sous la forme de pièce découpées.
  4. Transformateur planaire suivant la revendication 1 à 3, dans lequel les spires (3) pour du courant intense sont en cuivre.
  5. Transformateur planaire suivant l'une des revendications 1 à 4, dans lequel les spires (3) pour du courant intense sont en forme d'étrier.
  6. Transformateur planaire suivant l'une des revendications 1 à 5, dans lequel les spires (3) pour du courant intense sont disposées dans des plans différents dans le support (1).
  7. Transformateur planaire suivant l'une des revendications 1 à 6, dans lequel le support à la forme d'un cadre rectangulaire, carré ou circulaire, les bornes (5) des spires (3) pour du courant intense sortant sur un côté du cadre.
  8. Transformateur planaire suivant l'une des revendications 1 à 7, dans lequel dans un trou (4) au milieu du support (1) est disposé une partie du noyau (6) magnétique, qui est entourée par les spires.
  9. Transformateur planaire suivant l'une des revendications 1 à 8, dans lequel les spires (3) pour du courant intense sont isolées mutuellement par un revêtement isolant.
  10. Transformateur planaire suivant l'une des revendications 1 à 9, dans lequel le support est constitué des spires (3) pour du courant intense recouvertes de matière plastique par extrusion.
  11. Transformateur planaire suivant l'une des revendications 1 à 10, dans lequel les broches (2) de borne sont disposées sur le côté du cadre qui est opposé au côté du cadre ayant les bornes (5) des spires (3) pour du courant intense.
EP00116058A 1999-09-20 2000-07-26 Transformateur planaire Expired - Lifetime EP1085535B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19945013A DE19945013C5 (de) 1999-09-20 1999-09-20 Planartransformator
DE19945013 1999-09-20

Publications (2)

Publication Number Publication Date
EP1085535A1 EP1085535A1 (fr) 2001-03-21
EP1085535B1 true EP1085535B1 (fr) 2009-09-09

Family

ID=7922640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116058A Expired - Lifetime EP1085535B1 (fr) 1999-09-20 2000-07-26 Transformateur planaire

Country Status (3)

Country Link
EP (1) EP1085535B1 (fr)
AT (1) ATE442655T1 (fr)
DE (2) DE19945013C5 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9620278B2 (en) 2014-02-19 2017-04-11 General Electric Company System and method for reducing partial discharge in high voltage planar transformers
DE102018118551A1 (de) 2018-07-31 2020-02-06 Tdk Electronics Ag Verfahren zur Herstellung eines induktiven Bauelements und induktives Bauelement
FR3109837B1 (fr) 2020-05-04 2023-12-22 Mbda France Transformateur planaire équipé de composants, carte mère comprenant un tel transformateur planaire et procédé d’assemblage d’une telle carte mère.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476898B1 (fr) * 1980-02-22 1985-06-28 Mini Informatiq System Ste Eur Bobinage electromagnetique comportant des elements discrets et dispositif d'alimentation electrique comportant de tels bobinages
US5010314A (en) * 1990-03-30 1991-04-23 Multisource Technology Corp. Low-profile planar transformer for use in off-line switching power supplies
DE4122796A1 (de) * 1991-07-10 1993-01-21 Abb Patent Gmbh Induktives bauelement und verfahren zu seiner herstellung
JPH0613247A (ja) * 1992-06-26 1994-01-21 Fujitsu Ltd プレーナトランス用巻線
JPH0661071A (ja) * 1992-08-11 1994-03-04 Mitsubishi Electric Corp 静止電磁誘導機器
US5345670A (en) * 1992-12-11 1994-09-13 At&T Bell Laboratories Method of making a surface-mount power magnetic device
EP0608127A1 (fr) * 1993-01-22 1994-07-27 AT&T Corp. Système d'isolation pour enroulements magnétiques avec des conducteurs plats empilés
US5559487A (en) * 1994-05-10 1996-09-24 Reltec Corporation Winding construction for use in planar magnetic devices
DE69512324T2 (de) * 1994-06-21 2000-04-13 Sumitomo Special Metals Co., Ltd. Herstellungsverfahren für Substrat mit mehrschichtigen gedruckten Spulen
EP0741395A1 (fr) * 1995-05-04 1996-11-06 AT&T IPM Corp. Dispositif magnétique planaire montable sur les terminaux et sa méthode de fabrication
AT1045U1 (de) * 1995-10-03 1996-09-25 Fronius Schweissmasch Spulenkörper und verfahren zu dessen herstellung für einen transformator
JPH1012454A (ja) * 1996-06-21 1998-01-16 Toko Inc トランスの巻線構造
DE69601460T2 (de) * 1996-07-17 1999-06-24 Magnetek S.P.A., Siena Flache magnetische Anordnung für elektronische Schaltungen
DE29907035U1 (de) * 1999-04-20 1999-07-15 Weiner, René, 51702 Bergneustadt Spulenkörper für eine Flachspule mit einpreßbarer Stiftleiste

Also Published As

Publication number Publication date
DE19945013C5 (de) 2005-10-13
DE19945013C1 (de) 2001-04-05
EP1085535A1 (fr) 2001-03-21
DE50015737D1 (de) 2009-10-22
ATE442655T1 (de) 2009-09-15

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