EP0177759A1 - Composant électronique, en particulier pour une micro-inductance - Google Patents

Composant électronique, en particulier pour une micro-inductance Download PDF

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Publication number
EP0177759A1
EP0177759A1 EP85111179A EP85111179A EP0177759A1 EP 0177759 A1 EP0177759 A1 EP 0177759A1 EP 85111179 A EP85111179 A EP 85111179A EP 85111179 A EP85111179 A EP 85111179A EP 0177759 A1 EP0177759 A1 EP 0177759A1
Authority
EP
European Patent Office
Prior art keywords
contact elements
recesses
electronic component
component according
winding
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
EP85111179A
Other languages
German (de)
English (en)
Other versions
EP0177759B1 (fr
Inventor
Kurt Dipl.-Phys. Marth
Gerhard Müller
Jürgen Dipl.-Ing. Pütz
Josef Schindler
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 EP0177759A1 publication Critical patent/EP0177759A1/fr
Application granted granted Critical
Publication of EP0177759B1 publication Critical patent/EP0177759B1/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
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F2017/048—Fixed inductances of the signal type  with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
    • 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
    • H01F2027/295—Surface mounted devices with flexible terminals

Definitions

  • the invention relates to an electronic component, in particular for a chip inductance, in particular air coil and RF choke, with a solid core part with a vertical prismatic spatial shape, in particular cuboids, cubes or cylinders, consisting of ferromagnetic or electrically non-conductive material, in particular ferrite, ceramic or Plastic, with a winding space that can be wound in one or more layers and is set apart from parallel ends of the core part and with recesses arranged in the area of these ends for receiving electrical contact elements.
  • Chip inductors are smaller in comparison to conventional wired inductors, can be manufactured with less effort and are more suitable for use in the automatic assembly machines for printed circuit boards.
  • the known chip inductors are partly produced using layer technology and partly designed as rectangular or cylindrical, wire-wound magnetic cores, in particular ferrite cores
  • a carrier is coated with a layer of magnetic material and a conductor track shaped into a coil is applied to this layer, the partial inductance thus produced being combined with further partial inductances to form a stack, depending on the desired inductance.
  • Numerous methods are not known for through-contacting the ends of the individual coils or partial inductors
  • chip inductors are characterized by their space-saving design, can be killed directly on printed circuit boards and do not require any additional wires as connection elements.
  • the disadvantage is their complex production, which is due to the layering technique. Variations in the layer thickness of the magnetic layer that are unavoidable in production cause undesirable fluctuations in the L and Q values of the inductors. Silver or a silver-palladium alloy, for example, must be used as the material for the coil conductor tracks and a high ohmic resistance of the conductor tracks must be accepted. Since the conductor tracks are embedded in the magnetic layer, magnetic saturation occurs due to the closed magnetic circuit even at low values; the DC bias properties of the chip inductance are consequently deteriorated. In addition, the number of coil turns cannot be selected to any desired height and therefore no inductance of any desired value can be set.
  • a likewise known chip inductor has a rectangular ferrite core with a rectangular or cylindrical central part as a winding support and flanges integrally formed on this support, which also have a rectangular cross section.
  • the winding ends are contacted by means of electrically conductive layers on the flanges on the end face, to which the winding ends are soldered.
  • the finished wrap is embedded in synthetic resin, which forms a cuboid together with the flanges
  • connection elements have to be fastened to the coil core in two processing steps. First, a metal plate is glued to the coil body and only then is the actual connection strip soldered on.
  • US Pat. No. 3,585,553 discloses a chip inductor with a solid ferrite part with a cuboid shape, which has a winding space which is wound in one layer and is set down against the parallel ends of the core part and has recesses arranged in the region of these ends for leading out the winding ends.
  • the recesses are guided in the longitudinal direction of the chip inductor and the surfaces of the stimulators arranged on both sides are covered with electrically conductive layers, via which the winding ends are contacted.
  • the structure of this chip inductor is relatively simple; however, the electrically conductive contact layers have to be manufactured in a complicated manner.
  • the present invention has for its object to provide an electronic component of the type mentioned, which can be produced with little effort, is suitable for manufacturing chip inductors and meets the requirements of certain electronic devices in terms of high resonance frequencies insofar as it e.g. single layer and can be wound with high numbers of turns despite small dimensions.
  • the connection elements of this electronic component should also be such that they meet both the high mechanical requirements such. B. during assembly and also the mechanical loads caused by any bending of the printed circuit boards.
  • the invention provides for an electronic component according to the preamble of the patent claim that the end faces of parallel ends of the core part of this electronic component have mutually parallel cutouts which run over the entire narrow or broad side of these end faces and which accommodate platelet-shaped contact elements are suitable.
  • the contact elements which are glued, clamped or resiliently held in the recesses, protrude with their one ends in each case beyond the ends and are in these parts intended for winding the winding ends, e.g. bent in a U-shape or permitted as connector pins
  • the production of these electronic components and their chip inductors is considerably simplified if - as is known per se - the contact elements are first formed as detachable parts of a system carrier, the wound core parts are placed on these contact elements, their winding ends are wound onto the contact elements and - if necessary required - the chip inductance manufactured in this way is encased with insulating material, which can be mixed with carbonyl iron or ferrite for certain shielding requirements.
  • the system carriers equipped with these chip inductors can be separated before or, if necessary, only after they have been coated with insulating material.
  • Fig. 1 is a solid core part in cuboid shape, which z. B. in the manufacture of an RF choke made of magnetic material, in particular ferrite, or, if z. B. an air coil is to be made of electrical non-conductive material, in particular ceramic or plastic.
  • the core part 1 is formed with a winding space opposite its one parallel ends 2, which in the exemplary embodiment shown carries a single-layer winding 4.
  • the end faces of the ends 2, 2 have parallel cut-outs 3, 3, which run over the entire narrow or broad side of the end faces and have a dovetail-shaped cross section.
  • Platelet-shaped contact elements 5 are inserted into these recesses and are chamfered at one corner edge 7 to facilitate their insertion.
  • the contact elements 5 each have a part 8 projecting over the front ends 2, 2 and bent in a U-shape and intended for winding the winding ends 6.
  • the contact elements 5 can be glued into the recesses 3 or can be resiliently held in the recesses by appropriate design of their parts guided in the recess.
  • the chip inductance is surrounded by an insulating material covering 11, which can be offset with carbonyl iron or ferrite for shielding.
  • the contacting of the winding ends 7 with the contact elements 5, the z. B. can be carried out by means of welding or soldering, takes place here directly in the part of the contact elements 5 guided in the recesses 3.
  • the parts 12 of the contact elements 5 led out of the insulating material sheath 11 can, for. B. be designed as connector pins for drilled circuit boards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)
EP85111179A 1984-09-13 1985-09-04 Composant électronique, en particulier pour une micro-inductance Expired - Lifetime EP0177759B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3433692 1984-09-13
DE3433692 1984-09-13

Publications (2)

Publication Number Publication Date
EP0177759A1 true EP0177759A1 (fr) 1986-04-16
EP0177759B1 EP0177759B1 (fr) 1990-05-16

Family

ID=6245346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111179A Expired - Lifetime EP0177759B1 (fr) 1984-09-13 1985-09-04 Composant électronique, en particulier pour une micro-inductance

Country Status (4)

Country Link
US (1) US4704592A (fr)
EP (1) EP0177759B1 (fr)
JP (1) JPS6171609A (fr)
DE (1) DE3577771D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332638A1 (de) * 1993-09-24 1995-03-30 Siemens Matsushita Components Chip-Induktivität
EP0675513A1 (fr) * 1994-03-30 1995-10-04 Matsushita Electric Industrial Co., Ltd. Micro inductance
EP1250828A1 (fr) * 2000-01-13 2002-10-23 Sonion Microtronic Nederland B.V. Conditionnement et blindage r.f. pour phonocapteurs t l phoniques
DE19547091B4 (de) * 1995-12-16 2005-04-07 Kaschke Kg (Gmbh & Co.) Antennenspule mit oberflächenmontierbarem Gehäuse und Verfahren zu deren Herstellung
DE10031599B4 (de) * 1999-06-29 2005-06-23 Matsushita Electric Industrial Co., Ltd., Kadoma Spulenelement

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606544B1 (fr) * 1986-11-07 1990-05-18 Thomson Csf Inductance
JPS63187312U (fr) * 1987-05-26 1988-11-30
JPH06325938A (ja) * 1993-05-11 1994-11-25 Murata Mfg Co Ltd 巻線型コイル
DE4432740A1 (de) 1994-09-14 1996-03-21 Siemens Matsushita Components Chip-Induktivität
US6144280A (en) 1996-11-29 2000-11-07 Taiyo Yuden Co., Ltd. Wire wound electronic component and method of manufacturing the same
US5959587A (en) * 1997-09-12 1999-09-28 Ppg Industries Ohio, Inc. On the glass antenna system
FI105294B (fi) 1997-12-16 2000-07-14 Nokia Networks Oy Järjestely magneettipiirin toteuttamiseksi piirilevylle
US6137390A (en) * 1999-05-03 2000-10-24 Industrial Technology Research Institute Inductors with minimized EMI effect and the method of manufacturing the same
US7088211B2 (en) * 2003-07-15 2006-08-08 Astec International Limited Space saving surface-mounted inductors
US20050145408A1 (en) * 2003-12-03 2005-07-07 Scott Hess Electronic component
CN101501791A (zh) * 2006-07-14 2009-08-05 美商·帕斯脉冲工程有限公司 自引线表面安装电感器和方法
US20150137919A1 (en) * 2011-10-25 2015-05-21 Correlated Magnetics Research, Llc System and Method for Producing Magnetic Structures
US20120249107A1 (en) * 2011-04-01 2012-10-04 Cowley Nicholas P Coupled inductor to facilitate integrated power delivery
EP2530686B1 (fr) * 2011-06-01 2014-08-06 ABB Research Ltd. Pression des enroulements de transformateur durant le séchage de la partie active
CN104335342A (zh) 2012-03-13 2015-02-04 英特尔公司 反向微电子封装上的微电子器件附着
US10136516B2 (en) 2012-03-13 2018-11-20 Intel Corporation Microelectronic device attachment on a reverse microelectronic package
US9526175B2 (en) * 2012-04-24 2016-12-20 Intel Corporation Suspended inductor microelectronic structures
US9177714B2 (en) * 2012-12-28 2015-11-03 Power Integrations, Inc. Transverse shield wire for energy transfer element
JP2021002577A (ja) * 2019-06-21 2021-01-07 株式会社村田製作所 巻線型インダクタ部品

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3533054A (en) * 1968-01-11 1970-10-06 United Carr Inc Electrical terminal structure
US3735214A (en) * 1972-01-27 1973-05-22 Coilcraft Inc A header for mounting circuit elements for incorporation in an electric circuit
DE2454175A1 (de) * 1974-11-15 1976-05-26 Lothar Sachsse Einstueckiger spulenwickelkoerper ohne bohrung

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US3117294A (en) * 1964-01-07 Bobbin with insulated lead-in means
US1997198A (en) * 1931-01-31 1935-04-09 Bell Telephone Labor Inc Terminal mounting for resistances
GB397536A (en) * 1932-02-19 1933-08-21 Pye Radio Ltd Improvements in or relating to electrical transformers, particularly for use as intervalve transformers in radio apparatus
US2339067A (en) * 1941-04-05 1944-01-11 Western Electric Co Coil unit
GB1278257A (en) * 1968-08-16 1972-06-21 Bsr Ltd Improvements relating to bobbin assemblies
US3585553A (en) * 1970-04-16 1971-06-15 Us Army Microminiature leadless inductance element
US3663914A (en) * 1971-06-14 1972-05-16 Western Electric Co Bobbin wound coil assembly and electrical terminals therefor
DE2148534A1 (de) * 1971-09-29 1973-04-05 Plathner Ernst Transformatoren Anschlussfahne fuer transformatoren, drosseln od. dgl
DE2236241A1 (de) * 1972-07-24 1974-02-07 Siemens Ag Spulenkoerper
US3800172A (en) * 1972-11-10 1974-03-26 Oster J Mfg Co Hair clipper having blade illumination and field wire strain relief
JPS585317B2 (ja) * 1974-12-12 1983-01-29 日本化薬株式会社 セルロ−ズケイセンイノ センシヨクホウ
US4166265A (en) * 1978-02-03 1979-08-28 Amp Incorporated Coil bobbins and termination of coil windings
JPS5926577Y2 (ja) * 1979-09-17 1984-08-02 ティーディーケイ株式会社 小型インダクタンス素子
JPS59746Y2 (ja) * 1980-06-06 1984-01-10 四国変圧器株式会社 放電灯用安定器の端子部
US4361773A (en) * 1980-12-15 1982-11-30 Whirlpool Corporation Coil retainer and terminal assembly
JPS57149709A (en) * 1981-03-11 1982-09-16 Idec Izumi Corp Coil drawing-out method of coil bobbin
JPS585317U (ja) * 1981-07-01 1983-01-13 東光株式会社 チツプ形インダクタ
NL188772C (nl) * 1981-07-09 1992-09-16 Tdk Corp Inductantie.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533054A (en) * 1968-01-11 1970-10-06 United Carr Inc Electrical terminal structure
US3735214A (en) * 1972-01-27 1973-05-22 Coilcraft Inc A header for mounting circuit elements for incorporation in an electric circuit
DE2454175A1 (de) * 1974-11-15 1976-05-26 Lothar Sachsse Einstueckiger spulenwickelkoerper ohne bohrung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332638A1 (de) * 1993-09-24 1995-03-30 Siemens Matsushita Components Chip-Induktivität
EP0675513A1 (fr) * 1994-03-30 1995-10-04 Matsushita Electric Industrial Co., Ltd. Micro inductance
DE19547091B4 (de) * 1995-12-16 2005-04-07 Kaschke Kg (Gmbh & Co.) Antennenspule mit oberflächenmontierbarem Gehäuse und Verfahren zu deren Herstellung
DE10031599B4 (de) * 1999-06-29 2005-06-23 Matsushita Electric Industrial Co., Ltd., Kadoma Spulenelement
EP1250828A1 (fr) * 2000-01-13 2002-10-23 Sonion Microtronic Nederland B.V. Conditionnement et blindage r.f. pour phonocapteurs t l phoniques
EP1250828A4 (fr) * 2000-01-13 2006-08-02 Sonion Microtronic Nederland B Conditionnement et blindage r.f. pour phonocapteurs t l phoniques

Also Published As

Publication number Publication date
JPS6171609A (ja) 1986-04-12
EP0177759B1 (fr) 1990-05-16
JPH0564845B2 (fr) 1993-09-16
DE3577771D1 (de) 1990-06-21
US4704592A (en) 1987-11-03

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