DE4217434A1 - Chip inductance with coil wound on core - with undercut end faces for contact attachment - Google Patents

Chip inductance with coil wound on core - with undercut end faces for contact attachment

Info

Publication number
DE4217434A1
DE4217434A1 DE4217434A DE4217434A DE4217434A1 DE 4217434 A1 DE4217434 A1 DE 4217434A1 DE 4217434 A DE4217434 A DE 4217434A DE 4217434 A DE4217434 A DE 4217434A DE 4217434 A1 DE4217434 A1 DE 4217434A1
Authority
DE
Germany
Prior art keywords
winding
electrical component
contact elements
component according
core part
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.)
Withdrawn
Application number
DE4217434A
Other languages
German (de)
Inventor
Josef Schindler
Herbert Dipl Ing Baschke
Leo Dipl Ing Kienzle
Kurt Dipl Phys Marth
Wilfried Dipl Ing Scherer
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
Priority to DE4217434A priority Critical patent/DE4217434A1/en
Priority to JP5145517A priority patent/JPH0636930A/en
Publication of DE4217434A1 publication Critical patent/DE4217434A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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

Abstract

Chip inductance (1) consists of a solid core section (2) of cubic or cyulindrical shape consisting of ferromagnetic or electrically non-conductive material, partic. ferrite, ceramic or plastic with a coil space (5) for the coil (6), displaced from the parallel end faces (3, 4) of the core. These end faces have undercut recesses (7,8) into which contact elements (9, 10) are clipped or snapped. The component has a casing of insulating material (15) contg. carbonyl Fe and/or ferrite for screening. ADVANTAGE - Cheap to mfr.

Description

Die Erfindung betrifft ein elektrisches Bauteil, insbeson­ dere Chip-Induktivitat wie Luftspule, HF-Drossel oder Übertrager, mit einem massiven Kernteil mit senkrechter prismatischer Raumform, insbesondere Quader, Würfel oder Zylinder, bestehend aus ferromagnetischem oder elektrisch nicht leitendem Werkstoff, insbesondere Ferrit, Keramik oder Kunststoff, mit einem ein- oder mehrlagig bewickelba­ ren und einem gegenüber parallelen Stirnenden des Wickel­ teils abgesetzten Wickelraum und mit im Bereich der Stirn­ enden angeordneten elektrischen Kontaktelementen, die einen zum Anwickeln der Wickelenden bestimmten Teil auf­ weisen, der mit den Wickelenden elektrisch leitend verbun­ den ist.The invention relates to an electrical component, in particular their chip inductance such as air coil, RF choke or Transformer, with a solid core part with a vertical prismatic spatial form, in particular cuboids, cubes or Cylinder consisting of ferromagnetic or electric non-conductive material, especially ferrite, ceramic or plastic, with a single or multi-layer wrap ren and one opposite parallel ends of the winding partly separated changing room and with in the area of the forehead ends arranged electrical contact elements that a part intended for winding the winding ends point, which is connected to the winding ends in an electrically conductive manner that is.

Ein derartiges Bauteil ist aus der EP 0 177 759 B1 bekannt. Dort sind die Kontaktelemente plättchenförmig ausgebildet und in im Bereich der Stirnenden des Kernteils angeordne­ ten Aussparungen, z. B. Nuten, Schlitzen oder dergleichen gehaltert. Die Herstellung derartiger Kernteile mit schlitzförmigen Aussparungen ist jedoch recht kosteninten­ siv und verteuert damit das fertige Bauelement nicht uner­ heblich.Such a component is known from EP 0 177 759 B1. There, the contact elements are plate-shaped and arranged in the area of the front ends of the core part ten recesses, e.g. B. grooves, slots or the like supported. The production of such core parts with slot-shaped recesses, however, is quite expensive siv and thus makes the finished component more expensive considerable.

Aufgabe der Erfindung ist es daher, das eingangs genannte elektrische Bauteil derart auszugestalten, daß es in ko­ stengünstiger Weise hergestellt werden kann.The object of the invention is therefore the above To design electrical component such that it is in ko most inexpensive way can be produced.

Diese Aufgabe wird erfindungsgemaß dadurch gelöst, daß die Stirnenden des Kernteils hinterschnittene Ausnehmungen aufweisen und daß die elektrischen Kontaktelemente in diesen Ausnehmungen angeklammert oder eingeschnappt sind. This object is achieved in that the Recesses in the front ends of the core part have and that the electrical contact elements in these recesses are clipped or snapped.  

Vorteilhafte Ausgestaltungen des elektrischen Bauteils nach der Erfindung sind in den Unteransprüchen angeführt.Advantageous configurations of the electrical component according to the invention are set out in the subclaims.

Die Erfindung wird anhand der folgenden Ausführungsbeispie­ le erläutert.The invention is illustrated by the following example le explained.

In der dazugehörenden einzigen Figur ist eine Chip-Induk­ tivität 1 dargestellt. Die Chip-Induktivität 1 besteht aus einem massiven Kernteil 2 in Quaderform. Zur Fertigung beispielsweise einer HF-Drossel besteht das Kernteil 2 aus magnetischem Werkstoff, insbesondere Ferrit, während es zur Fertigung beispielsweise einer Luftspule aus elektrisch nicht leitendem Werkstoff, insbesondere Keramik oder Kunst­ stoff besteht.In the associated single figure, a chip inductivity 1 is shown. The chip inductor 1 consists of a solid core part 2 in a cuboid shape. For manufacturing, for example, an HF choke, the core part 2 is made of magnetic material, in particular ferrite, while it is for manufacturing, for example, an air coil made of electrically non-conductive material, in particular ceramic or plastic.

Das Kernteil 2 weist einen gegenüber den parallelen Stirn­ enden 3, 4 abgesetzten Wickelraum 5 auf, in welchem die Wicklung 6 der Chip-Induktivität 1 angeordnet ist.The core part 2 has a winding space 5 which is offset from the parallel ends 3 , 4 and in which the winding 6 of the chip inductor 1 is arranged.

Die Stirnenden 3, 4 des Kernteils 2 weisen hinterschnitte­ ne Ausnehmungen 7, 8 auf, in die die elektrischen, flächen­ förmigen Kontaktelemente 9, 10 angeklammert bzw. einge­ schnappt sind. Zur Unterstutzung der Fixierung können die Kontaktelemente 9, 10 zusätzlich durch eine Kleberschicht 11, 12 an den Stirnenden 3, 4 des Kernteils 2 befestigt sein.The front ends 3 , 4 of the core part 2 have undercuts ne recesses 7 , 8 , in which the electrical, flat-shaped contact elements 9 , 10 are clipped or snapped. To support the fixation, the contact elements 9 , 10 can additionally be fastened to the front ends 3 , 4 of the core part 2 by an adhesive layer 11 , 12 .

Die Kontaktelemente 9, 10 weisen im Bereich der Stirnenden 3, 4 ein zum Anwickeln der Wickelenden 13 der Wicklung bestimmtes und im Bereich der Stirnenden 3, 4 über das Kontaktelement 10, 11 überstehendes U-förmig gebogenes Teil 14 auf.The contact elements 9 , 10 have in the region of the front ends 3 , 4 a U-shaped part 14 intended for winding the winding ends 13 of the winding and projecting beyond the contact elements 10 , 11 in the region of the end ends 3 , 4 .

Die Wickelenden 13 werden während des Wickelvorganges sandwichartig im Teil 14 festgehalten. Anschließend erfolgt eine Verschweißung der Wickelenden 13 mit dem Kontaktteil 10.The winding ends 13 are sandwiched in part 14 during the winding process. The winding ends 13 are then welded to the contact part 10 .

Diese Schweißung erfolgt am Rand des Kontaktelementes 10, weil dann einerseits der Restdraht mit abgeschmolzen wird und andererseits die Schmelze sich derart ausbildet, daß der Spulendraht 13 ohne Veränderung seines Querschnittes in die Schmelze eingebettet ist. Der Schweißvorgang kann dabei so erfolgen, daß durch genaue Zentrierung des zu schweißenden Teils und einer beispielsweise Laser-Schweiß- Einrichtung an der richtigen Stelle geschweißt wird, wobei z. B. das zu schweißende Teil und die Laser-Schweiß-Ein­ richtung mittels Bilderkennungssystemen so aufeinander ab­ gestimmt sind, daß die Schweißung an der gewünschten Stel­ le ausgeführt wird.This welding takes place at the edge of the contact element 10 , because on the one hand the residual wire is also melted and on the other hand the melt is formed in such a way that the coil wire 13 is embedded in the melt without changing its cross section. The welding process can be carried out in such a way that, by exact centering of the part to be welded and, for example, a laser welding device, welding is carried out at the correct point, z. B. the part to be welded and the laser welding device are matched to one another by means of image recognition systems so that the welding is carried out at the desired position.

Nach Herstellung der Wicklung und Verschweißung der Wickel­ enden 13 erhält die Chip-Induktivität eine Umhüllung 15 aus einem Kunststoff, z. B. Epoxidharz. Falls eine Abschir­ mung erwünscht ist, können in der Umhüllung 15 fein ver­ teilte Carbonyleisen- oder Ferritteilchen enthalten sein.After manufacture of the winding and welding of the winding ends 13 , the chip inductor receives an envelope 15 made of a plastic, for. B. epoxy. If a shielding is desired, 15 finely divided carbonyl iron or ferrite particles can be contained in the covering.

Nach Herstellung der Umhüllung 15 werden die flächenförmi­ gen Enden 16, 17 der elektrischen Kontaktelemente 9, 10 auf die Umhüllung 15 umgebogen. Um die Abmessungen der Chip-Induktivität möglichst klein zu halten, können in der Umhüllung 15 Aussparungen 18, 19 angeordnet sein, die die Enden 16, 17 der Kontaktelemente 9, 10 aufnehmen.After the casing 15 has been produced , the ends 16 , 17 of the electrical contact elements 9 , 10 are bent over the casing 15 . In order to keep the dimensions of the chip inductance as small as possible, recesses 18 , 19 can be arranged in the casing 15 , which receive the ends 16 , 17 of the contact elements 9 , 10 .

Falls eine Chip-Induktivität ohne Umhüllung hergestellt werden soll, werden für die Wicklung 6 bevorzugt Kupfer­ lackdrähte mit hochtemperaturfester Lackisolierung einge­ setzt, um die erforderliche Schwallötfestigkeit zu ge­ währleisten.If a chip inductance is to be produced without a covering, copper enamelled wires with high-temperature-resistant enamel insulation are preferably used for the winding 6 in order to ensure the required resistance to wave soldering.

Claims (5)

1. Elektrisches Bauteil, insbesondere Chip-Induktivität wie Luftspule, HF-Drossel oder Übertrager, mit einem massiven Kernteil mit senkrechter prismatischer Raumform, insbesondere Quader, Würfel oder Zylinder, bestehend aus ferromagnetischem oder elektrisch nicht leitendem Werk­ stoff, insbesondere Ferrit, Keramik oder Kunststoff, mit einem ein- oder mehrlagig bewickelbaren und gegenüber parallelen Stirnenden des Wickelteils abgesetzten Wickel­ raum und mit im Bereich der Stirnenden angeordneten elek­ trischen Kontaktelementen, die ein zum Anwickeln der Wickel­ enden bestimmtes Teil aufweisen, das mit den Wickelenden elektrisch leitend verbunden ist, dadurch gekennzeichnet, daß die Stirnenden (3, 4) des Kernteils (2) hinterschnitte­ ne Ausnehmungen (7, 8) aufweisen und daß die elektrischen Kontaktelemente (9, 10) in diesen Ausnehmungen (7, 8) ange­ klammert oder eingeschnappt sind.1. Electrical component, in particular chip inductance such as air coil, RF choke or transformer, with a solid core part with a vertical prismatic shape, in particular cuboid, cube or cylinder, consisting of ferromagnetic or electrically non-conductive material, in particular ferrite, ceramic or plastic , With a one or more layers and opposite to the parallel ends of the winding part offset winding space and with arranged in the region of the ends electrical contact elements, which have a certain end for winding the winding part that is electrically conductively connected to the winding ends, characterized in that the front ends (3, 4) of the core part (2) undercuts ne recesses (7, 8) and in that the electrical contact elements (9, 10) in these recesses (7, 8) clamped or snapped. 2. Elektrisches Bauteil nach Anspruch 1, dadurch gekennzeichnet, daß die angeklammerten oder eingeschnappten elektrischen Kontaktelemente (9, 10) zusätzlich mit Kleber (11, 12) an den Stirnenden (3, 4) des Kernteils (2) fixiert sind.2. Electrical component according to claim 1, characterized in that the clamped or snapped electrical contact elements ( 9 , 10 ) are additionally fixed with adhesive ( 11 , 12 ) on the front ends ( 3 , 4 ) of the core part ( 2 ). 3. Elektrisches Bauteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Wickeldrahte (6) aus Kupferlackdrähten mit einer hochtemperaturfesten Lackisolierung bestehen.3. Electrical component according to claim 1 or 2, characterized in that the winding wires ( 6 ) consist of enamelled copper wires with a high temperature resistant enamel insulation. 4. Elektrisches Bauteil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß es eine Umhüllung (15) besitzt. 4. Electrical component according to one of claims 1 to 3, characterized in that it has a sheath ( 15 ). 5. Elektrisches Bauteil nach Anspruch 4, dadurch gekennzeichnet, daß die Umhüllung (15) aus einer Isoliermasse besteht, die zum Zweck der Schirmung Karbonyleisen und/oder Ferrit enthält.5. Electrical component according to claim 4, characterized in that the sheath ( 15 ) consists of an insulating compound containing carbonyl iron and / or ferrite for the purpose of shielding.
DE4217434A 1992-05-26 1992-05-26 Chip inductance with coil wound on core - with undercut end faces for contact attachment Withdrawn DE4217434A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4217434A DE4217434A1 (en) 1992-05-26 1992-05-26 Chip inductance with coil wound on core - with undercut end faces for contact attachment
JP5145517A JPH0636930A (en) 1992-05-26 1993-05-24 Electric device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4217434A DE4217434A1 (en) 1992-05-26 1992-05-26 Chip inductance with coil wound on core - with undercut end faces for contact attachment

Publications (1)

Publication Number Publication Date
DE4217434A1 true DE4217434A1 (en) 1993-12-02

Family

ID=6459777

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4217434A Withdrawn DE4217434A1 (en) 1992-05-26 1992-05-26 Chip inductance with coil wound on core - with undercut end faces for contact attachment

Country Status (2)

Country Link
JP (1) JPH0636930A (en)
DE (1) DE4217434A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326358C1 (en) * 1993-08-05 1994-11-24 Siemens Audiologische Technik Induction coil for use as an electromagnetic induction transducer (hearing coil) in electrical hearing aids
DE4332638A1 (en) * 1993-09-24 1995-03-30 Siemens Matsushita Components Chip inductance
EP1250828A1 (en) * 2000-01-13 2002-10-23 Sonion Microtronic Nederland B.V. Packaging and rf shielding for telecoils
EP2197004A1 (en) * 2007-09-10 2010-06-16 Sumida Corporation Magnetic component
DE102013101364A1 (en) * 2013-02-12 2014-10-30 Epcos Ag Electrical transformer component

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6841085B2 (en) * 2017-02-28 2021-03-10 日本電産リード株式会社 Coiled electronic components
WO2018159333A1 (en) * 2017-02-28 2018-09-07 日本電産リード株式会社 Coiled electronic component, coil component, coil component manufacturing method, inductance element, t-type filter, oscillating circuit, and inductance element manufacturing method
JP6838426B2 (en) * 2017-02-28 2021-03-03 日本電産リード株式会社 Coil parts and manufacturing method of coil parts

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2132378A1 (en) * 1971-06-30 1973-01-18 Siemens Ag GLOWING THROTTLE
DE2320819A1 (en) * 1973-04-25 1974-11-14 Lothar Sachsse ELECTRIC COIL, IN PARTICULAR THROTTLE
DE3225782A1 (en) * 1981-07-09 1983-02-10 TDK Electronics Co., Ltd., Tokyo ELECTRONIC COMPONENT
EP0175461A1 (en) * 1984-08-15 1986-03-26 Standex International Corporation Coil assembly
EP0213982A1 (en) * 1985-07-23 1987-03-11 Compagnie Europeenne De Composants Electroniques Lcc Electronic inductive chip component, and method of making the same
US4755784A (en) * 1985-07-02 1988-07-05 Matsushita Electric Industrial Co., Ltd. Chip inductor
US4842352A (en) * 1988-10-05 1989-06-27 Tdk Corporation Chip-like inductance element
DE4023141A1 (en) * 1990-07-20 1992-01-30 Siemens Matsushita Components Encapsulating prismatic inductance - has fixing contact ends in off=centre split plane of mould and injecting resin asymmetrically to inductance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2132378A1 (en) * 1971-06-30 1973-01-18 Siemens Ag GLOWING THROTTLE
DE2320819A1 (en) * 1973-04-25 1974-11-14 Lothar Sachsse ELECTRIC COIL, IN PARTICULAR THROTTLE
DE3225782A1 (en) * 1981-07-09 1983-02-10 TDK Electronics Co., Ltd., Tokyo ELECTRONIC COMPONENT
EP0175461A1 (en) * 1984-08-15 1986-03-26 Standex International Corporation Coil assembly
US4755784A (en) * 1985-07-02 1988-07-05 Matsushita Electric Industrial Co., Ltd. Chip inductor
EP0213982A1 (en) * 1985-07-23 1987-03-11 Compagnie Europeenne De Composants Electroniques Lcc Electronic inductive chip component, and method of making the same
US4842352A (en) * 1988-10-05 1989-06-27 Tdk Corporation Chip-like inductance element
DE4023141A1 (en) * 1990-07-20 1992-01-30 Siemens Matsushita Components Encapsulating prismatic inductance - has fixing contact ends in off=centre split plane of mould and injecting resin asymmetrically to inductance

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326358C1 (en) * 1993-08-05 1994-11-24 Siemens Audiologische Technik Induction coil for use as an electromagnetic induction transducer (hearing coil) in electrical hearing aids
DE4332638A1 (en) * 1993-09-24 1995-03-30 Siemens Matsushita Components Chip inductance
EP1250828A1 (en) * 2000-01-13 2002-10-23 Sonion Microtronic Nederland B.V. Packaging and rf shielding for telecoils
EP1250828A4 (en) * 2000-01-13 2006-08-02 Sonion Microtronic Nederland B Packaging and rf shielding for telecoils
EP2197004A1 (en) * 2007-09-10 2010-06-16 Sumida Corporation Magnetic component
EP2197004A4 (en) * 2007-09-10 2010-09-22 Sumida Corp Magnetic component
DE102013101364A1 (en) * 2013-02-12 2014-10-30 Epcos Ag Electrical transformer component
DE102013101364B4 (en) 2013-02-12 2023-02-02 Tdk Electronics Ag Electrical transformer component

Also Published As

Publication number Publication date
JPH0636930A (en) 1994-02-10

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