EP0824259A2 - Corps de bobine pour une bobine plate - Google Patents

Corps de bobine pour une bobine plate Download PDF

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Publication number
EP0824259A2
EP0824259A2 EP97107798A EP97107798A EP0824259A2 EP 0824259 A2 EP0824259 A2 EP 0824259A2 EP 97107798 A EP97107798 A EP 97107798A EP 97107798 A EP97107798 A EP 97107798A EP 0824259 A2 EP0824259 A2 EP 0824259A2
Authority
EP
European Patent Office
Prior art keywords
pins
coil former
former according
coil
carrier plate
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
EP97107798A
Other languages
German (de)
English (en)
Other versions
EP0824259B1 (fr
EP0824259A3 (fr
Inventor
René Weiner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0824259A2 publication Critical patent/EP0824259A2/fr
Publication of EP0824259A3 publication Critical patent/EP0824259A3/fr
Application granted granted Critical
Publication of EP0824259B1 publication Critical patent/EP0824259B1/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
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers

Definitions

  • the invention relates to a coil former for a flat coil with several stacked circuit boards on which one or more turns are applied.
  • Flat coils are used as inductive components in the form of Chokes, transformers etc. in electronic circuit arrangements used.
  • the height of such components is defined generally the total height of one with different Components populated circuit board and so the distance between two circuit boards in one Assembly.
  • Conventional coils have a relatively high overall height, so that the number of circuit boards per assembly is limited. It is now possible to have multiple coil circuit boards to be arranged one above the other, each on such Printed circuit board one or more turns are applied.
  • the conductor tracks that define these turns can have a large area, reducing the influence of the skin effect is reduced and large currents at high frequencies can be achieved. It is also one of them Arrangement the height for the coil low and the inductive Coupling between the turns on the circuit boards is great.
  • a bobbin create which takes up the different turns and Provides connectors to ends of the turns to connect with each other and with other components.
  • a bobbin for a flat coil provided that several stacked circuit boards has applied one or more turns are.
  • the new bobbin is characterized by that on the edge of a support plate made of insulating material in arranged in a straight row of electrically conductive pins are used to connect the conductor tracks on the boards and which protrude towards the plates that the Pins spaced from each other according to a predetermined grid spacing are that the carrier plate has a first recess for holding a leg of a magnet that the Carrier plate can be connected to a lid, which is one for has first recess aligned second recess, and that at least the pins when the cover is closed protrude on one side of the bobbin.
  • the carrier plate Pins are electrically conductive in the carrier plate Pins inserted. These pens have a dual function. On the one hand they are used for the electrical connection of Turns of several circuit boards together, creating windings generated with a predetermined number of turns will. On the other hand, the pins also serve as connection elements, around ends of the windings with the outside world, e.g. With to connect other components. It is possible within to generate several windings in one flat coil, e.g. one To create transformer.
  • the pins are according to a predetermined one Grid spaced apart.
  • a grid spacing preferably uses a standard grid, as is the case with circuit boards and other connecting elements is common. In this way, ends of the pins can be in contact holes be used on a circuit board and by Form a specific conductor structure on the circuit board additional connection options can be provided will. Because of the bobbin according to the invention the flat coil can be kept flexible be used. It should be noted that not A pin is provided for each grid point at grid spacing have to be. It is only essential that adjacent pins an integer multiple of the grid spacing as a spacing from each other.
  • the carrier plate can also be connected to a cover, wherein both elements have recesses aligned with one another.
  • the carrier plate takes over and cover the function of a flange which the Windings limited. Through the recess, the Legs of a magnetic core are used to pass through the magnetic field lines generated in the windings to bundle.
  • the height of the indirectly created by the coil body Flat coil is essentially by the number of used Printed circuit boards defined. Because of the relatively large Surface of the circuit board it is possible to use a flat coil to produce high coil quality and low overall height.
  • Figure 1 shows essential in an exploded view Parts of a flat coil.
  • a circuit board 10 On a circuit board 10 is one large-area conductor track 12 (hatched) applied, which has three connections 14 which, as in circuit board technology usual, each have a through hole.
  • the conductor track 12 defines a turn around a central recess 16.
  • Die Circuit board 10 can be made of conventional rigid material, for example FR4 material or made of flexible material. It can be coated on one or two sides or as a multilayer be trained.
  • Figure 1 there is only one Printed circuit board 10 shown. It is understood that the Entire flat coil comprises several printed circuit boards 10, which are stacked one above the other and their cutouts 16 with one another swear.
  • the coil former according to the invention has a carrier plate 20 with a U-shape forming side walls 22, 24.
  • a central one Recess 26 is rectangular in the manner of an attachment insulating panel 28 arranged to the around the circuit boards in the manner of the circuit board 10 with their respective recesses 16 are arranged.
  • the costume 28 takes over the function of a winding former conventional bobbin.
  • pins 30, 32 At the open ends of the carrier 20 are two rows of pins 30, 32 provided with pins 34 which 36 in through holes are attached.
  • the pins 34 project on the one hand in the direction of the circuit board 10 to pass through the through holes of the terminals 14 and optionally with the conductor track 12 to be connected.
  • the pins 34 of the rows of pins 30, 32 are standardized Grid spacing a spaced apart. This Grid spacing a matches the usual grid spacing Printed circuit boards or circuit boards. That’s it possible, ends of pins 34 with standard components of electrical engineering, e.g. a circuit board, a terminal block etc. to connect.
  • spacer elements 38 in the form of Sleeves are provided which comprise the pins 34.
  • each through hole 36 is not with one Pin 34 occupied, i.e. the distance between two pins 34 can also be an integer multiple of the grid spacing a be.
  • a cover 42 according to Art shown a U-shaped bracket. Its side walls 44, 46 are closed over the free ends of the Carrier plate 20 slipped.
  • the cover 42 also has a recess 48, which in the closed state of the lid with the Recess 26 and the recess 16 of the printed circuit board 10 flees.
  • Insulating elements 50 are on the side walls 44, 46 provided which in the closed state of the cover 42nd Isolate adjacent pins 34 from each other. In this way the clearance and creepage distance between the pins 34 is increased and the dielectric strength of the entire flat coil elevated.
  • Figure 2 shows in the upper part of the coil body with the closed Cover 42, the side walls 44, 46 of the open Close sections of the carrier plate 20 with a precise fit.
  • the open ends of the carrier plate 20th are expedient (see FIG. 1) in order to ensure accessibility to the To receive pins 34 and the inserted printed circuit boards 10, e.g. to carry out a soldering process or a repair can.
  • the shaft 52 can be the middle leg of a magnetic core be introduced.
  • the magnetic core 54 consists of two halves 54a, 54b.
  • a magnetic core with an E-shape is preferably used, however, other magnetic forms are also conceivable.
  • FIG. 3 shows an embodiment of a flat coil, on the top of the top half of the magnetic core 54 a heat sink 56 with cooling fins 58 is attached is.
  • This heat sink 56 increases the heat dissipation to the ambient air. Due to the large area of the flat coil these work with a higher heat loss than a conventional one Kitchen sink.
  • FIG. 4 shows two embodiments of flat coils with magnetic cores, which are designed as shell cores 60, 62. in the a relatively flat flat coil is shown on the left part of the picture. In the right part of the picture is the height of the flat coil significantly enlarged because the number of printed circuit boards is large which the bobbin takes up.
  • Figure 5 shows another embodiment in the right part of the picture of the bobbin, in which the pins 34 through through holes are led out upwards in the cover 42.
  • the End portions of these pins 34 form the outward ones Connection elements 40.
  • On these connection elements 40 as can be seen in the left part of the figure, a connection strip 60 with standardized grid dimensions. Via the contact bar 60 can be the respective pin 34 with a connecting line 62 are electrically connected.
EP97107798A 1996-07-18 1997-05-13 Corps de bobine pour une bobine plate Expired - Lifetime EP0824259B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19629067A DE19629067A1 (de) 1996-07-18 1996-07-18 Spulenkörper für eine Flachspule
DE19629067 1996-07-18

Publications (3)

Publication Number Publication Date
EP0824259A2 true EP0824259A2 (fr) 1998-02-18
EP0824259A3 EP0824259A3 (fr) 1998-04-29
EP0824259B1 EP0824259B1 (fr) 2000-08-09

Family

ID=7800221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107798A Expired - Lifetime EP0824259B1 (fr) 1996-07-18 1997-05-13 Corps de bobine pour une bobine plate

Country Status (3)

Country Link
US (1) US5929734A (fr)
EP (1) EP0824259B1 (fr)
DE (2) DE19629067A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19901172C2 (de) * 1998-07-15 2001-04-26 Mitsubishi Electric Corp Hochspannungstransformator und Verfahren zum Herstellen des Hochspannungstransformators

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802762A1 (fr) * 1999-12-17 2001-06-22 Microspire Composant inductif de faible epaisseur
IL139714A0 (en) * 2000-11-15 2002-02-10 Payton Planar Magnetics Ltd A bobbin for hybrid coils in planar magnetic components
US20040113739A1 (en) * 2000-12-07 2004-06-17 Delta Electronics Inc. Low profile transformer
ES2197830B1 (es) * 2002-06-26 2005-01-01 Premo, S.A. Procedimiento para la fabricacion de transformadores planares y transformador planar fabricado de acuerdo con el mismo.
NO320550B1 (no) * 2004-06-07 2005-12-19 Applied Plasma Physics Asa Anordning ved planar hoyspenningstransformator
WO2009042232A1 (fr) * 2007-09-25 2009-04-02 Flextronics Ap, Llc Transformateur magnétique à optimisation thermique
US8975523B2 (en) * 2008-05-28 2015-03-10 Flextronics Ap, Llc Optimized litz wire
US8339231B1 (en) 2010-03-22 2012-12-25 Flextronics Ap, Llc Leadframe based magnetics package
CN101847496A (zh) * 2010-05-26 2010-09-29 深圳市欣锐特科技有限公司 变压器以及应用该变压器的开关电源和led日光灯
CN102592802B (zh) * 2011-01-05 2014-09-17 台达电子工业股份有限公司 可维持高度的变压器
US9490058B1 (en) 2011-01-14 2016-11-08 Universal Lighting Technologies, Inc. Magnetic component with core grooves for improved heat transfer
US9067099B2 (en) * 2011-03-15 2015-06-30 David Beard Apparatus, system, and method for generating power for exercise equipment
US8441331B2 (en) * 2011-03-16 2013-05-14 Delphi Technologies, Inc. Planar magnetic structure
DE102011075707A1 (de) * 2011-05-12 2012-11-15 SUMIDA Components & Modules GmbH Transformator mit geblechter Wicklung
TWM426149U (en) * 2011-09-23 2012-04-01 Yujing Technology Co Ltd Ultra thin filter structure
JP5729405B2 (ja) * 2013-02-22 2015-06-03 Tdk株式会社 コイル部品
US20140320254A1 (en) * 2013-04-30 2014-10-30 Nextek Power Systems, Inc. Assembly Having Transformer and Inductor Properties and Method of Making the Assembly
US10312012B2 (en) * 2013-08-29 2019-06-04 Solum Co., Ltd. Transformer and power supply device including the same
US9396865B1 (en) * 2013-11-07 2016-07-19 Universal Lighting Technologies, Inc. Magnetic component with auxiliary winding circuit board
US10553339B1 (en) 2018-03-30 2020-02-04 Universal Lighting Technologies, Inc. Common-mode choke with integrated RF inductor winding
JP7342424B2 (ja) * 2019-05-30 2023-09-12 Tdk株式会社 コイル部品及びこれを備える非接触電力伝送装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163603A (en) * 1984-08-25 1986-02-26 Stc Plc Miniature transformer or choke
JPH06163266A (ja) * 1992-11-26 1994-06-10 Hitachi Ferrite Ltd 薄型トランス
EP0601791A1 (fr) * 1992-12-11 1994-06-15 AT&T Corp. Composant à puissance magnétique monté en surface et procédé pour le fabriquer
EP0435461B1 (fr) * 1989-12-29 1995-01-18 AT&T Corp. Composant magnétique de faible profil ayant plusieurs enroulements à couches

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SU426249A1 (ru) * 1972-04-24 1974-04-30 Е. С. Бландова, Е. И. Каретникова , Е. И. Фридман Способ изготовления трансформатора с радиаторами
JPS61168617A (ja) * 1985-01-21 1986-07-30 Sanyo Kokusaku Pulp Co Ltd 高純度臭素化エポキシ樹脂の製造法
JPH03283404A (ja) * 1990-03-29 1991-12-13 Tabuchi Denki Kk シートコイル接続用端子台を備えた積層コイル装置
US5010314A (en) * 1990-03-30 1991-04-23 Multisource Technology Corp. Low-profile planar transformer for use in off-line switching power supplies
JPH0559818A (ja) * 1991-04-15 1993-03-09 Natl House Ind Co Ltd 壁パネル仮固定装置
JP2971220B2 (ja) * 1991-11-13 1999-11-02 富士電気化学株式会社 トランス用コイル素子、並びにそのコイル素子を用いたトランス、及びそのトランスの結線方法
JP2530797B2 (ja) * 1992-04-15 1996-09-04 日立金属株式会社 薄型トランス

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163603A (en) * 1984-08-25 1986-02-26 Stc Plc Miniature transformer or choke
EP0435461B1 (fr) * 1989-12-29 1995-01-18 AT&T Corp. Composant magnétique de faible profil ayant plusieurs enroulements à couches
JPH06163266A (ja) * 1992-11-26 1994-06-10 Hitachi Ferrite Ltd 薄型トランス
EP0601791A1 (fr) * 1992-12-11 1994-06-15 AT&T Corp. Composant à puissance magnétique monté en surface et procédé pour le fabriquer

Non-Patent Citations (1)

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Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 477 (E-1602), 6.September 1994 & JP 06 163266 A (HITACHI FERRITE LTD), 10.Juni 1994, *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19901172C2 (de) * 1998-07-15 2001-04-26 Mitsubishi Electric Corp Hochspannungstransformator und Verfahren zum Herstellen des Hochspannungstransformators

Also Published As

Publication number Publication date
EP0824259B1 (fr) 2000-08-09
US5929734A (en) 1999-07-27
DE59702130D1 (de) 2000-09-14
DE19629067A1 (de) 1998-01-22
EP0824259A3 (fr) 1998-04-29

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