DE3820976A1 - SMD inductor or transformer - Google Patents

SMD inductor or transformer

Info

Publication number
DE3820976A1
DE3820976A1 DE19883820976 DE3820976A DE3820976A1 DE 3820976 A1 DE3820976 A1 DE 3820976A1 DE 19883820976 DE19883820976 DE 19883820976 DE 3820976 A DE3820976 A DE 3820976A DE 3820976 A1 DE3820976 A1 DE 3820976A1
Authority
DE
Germany
Prior art keywords
core
transformer
smd
molded projections
wire
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Withdrawn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
DE19883820976
Other languages
German (de)
Inventor
Anton Dipl Ing Schmeller
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.)
Vogt Electronic AG
Original Assignee
Vogt Electronic 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 Vogt Electronic AG filed Critical Vogt Electronic AG
Priority to DE19883820976 priority Critical patent/DE3820976A1/en
Publication of DE3820976A1 publication Critical patent/DE3820976A1/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Withdrawn legal-status Critical Current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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/341—Surface mounted components
    • H05K3/3421—Leaded components

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

SMD inductors or transformers are described which can be manufactured fully automatically, independently of the core shape (single- or multiple-hole core).

Description

Für die Hochfrequenztechnik werden in steigendem Maße Drosseln und Übertrager, in SMD-Technik benötigt. Diese wurden bisher in konventioneller Weise mit großem manuellem Aufwand gefer­ tigt. Gemäß der Erfindung ist es möglich, mit geeigneten Wickel­ vollautomaten die Fertigung dieser SMD-Bauteile von jeder manu­ ellen Verarbeitung zu lösen.Chokes are increasingly being used for high-frequency technology and transformer, required in SMD technology. So far these have been gefer in a conventional manner with great manual effort does. According to the invention it is possible to use suitable wraps Fully automated the production of these SMD components by every manu to solve processing.

Eine Induktivität besteht aus einem Kern, einer oder mehreren Wicklung(en) und entsprechend ausgestalteten Drahtanschlußkonfi­ gurationen, z. B. Stiften oder (für SMD) Lötflächen. Die an sich bekannte Verformungstechnik von Ferriten durch Spritzgießen erlaubt praktisch beliebige Konfiguration des Kernes.An inductor consists of a core, one or more Winding (s) and appropriately designed wire connection confi gurations, e.g. B. pins or (for SMD) soldering pads. The well-known deformation technique of ferrites through Injection molding allows practically any configuration of the Kernes.

Für die erfindungsgemäßen Anwendungen haben sich verschiedene Kernformen als geeignet erwiesen.Various have been found for the applications according to the invention Core forms proved to be suitable.

Beschreibung der AbbildungenDescription of the pictures

In Abb. 1 wird ein Übertrager mit 2 Wicklungen (1) gezeigt, dessen Kern eine Bohrung (3) aufweist. Die Wicklungsenden (4) sind in üblicher Weise mit den angeformten Vorsprüngen verbunden und für SMD-Lötung geeignet.In Fig. 1 a transformer with 2 windings ( 1 ) is shown, the core of which has a bore ( 3 ). The winding ends ( 4 ) are connected in a conventional manner to the molded projections and are suitable for SMD soldering.

In Abb. 2 wird eine Spule gezeigt, bei der die Wicklung (6) durch 2 Bohrungen des Kerns (7) geführt ist. (Die Befestigung der Wick­ lungsenden wie bei Abb. 1.)In Fig. 2 a coil is shown, in which the winding ( 6 ) is guided through 2 holes in the core ( 7 ). (The winding ends are attached as in Fig. 1.)

In Abb. 3 wird eine Drossel gezeigt, bei der die Wicklung (8) um den Steg des H-förmig ausgestalteten Kerns (9) herumgeführt ist. (Befestigung der Wicklungsenden wie bei Abb. 1.)In Fig. 3 a choke is shown in which the winding ( 8 ) is guided around the web of the H-shaped core ( 9 ). (Fastening the winding ends as in Fig. 1)

Claims (7)

1. SMD-Drossel bzw. Übertrager, gekennzeichnet durch einen Kern mit einem Durchgangsloch mit angeformten Vorsprüngen, die der Drahtfestlegung dienen, und mindestens einer Drahtwicklung.1. SMD choke or transformer, characterized by a core with a through hole with molded projections, which serve to fix the wire, and at least one wire winding. 2. nach Anspruch 1, gekennzeichnet durch einen Kern mit 2 Durch­ gangslöchern.2. according to claim 1, characterized by a core with 2 through holes. 3. nach Anspruch 1, gekennzeichnet durch einen Kern mit H-förmigem Querschnitt.3. according to claim 1, characterized by a core with an H-shaped Cross-section. 4. nach Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß der Kern im Spritzgußverfahren hergestellt ist.4. according to claims 1 to 3, characterized in that the core is manufactured by injection molding. 5. nach einem oder mehreren vorhergehenden Ansprüchen, dadurch ge­ kennzeichnet, daß ein Ferrit-Material mit hohem spezifischem Widerstand Verwendung findet.5. according to one or more of the preceding claims, characterized ge indicates that a ferrite material with high specific Resistance is used. 6. SMD-Drossel bzw. -Übertrager, dadurch gekennzeichnet, daß an Stelle der angeformten Vorsprünge zur Drahtfestlegung eine Kunststoffplatte verwendet wird.6. SMD inductor or transformer, characterized in that Place the molded projections for wire fixing one Plastic plate is used. 7. nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß die um die angeformten Vorsprünge gewickelten Wicklungsenden wenig­ stens auf der für die Verbindung auf der Leiterplatte vorge­ sehenen Seite von der Isolation befreit, und für die Verbin­ dung in SMD-Technik vorbereitet, z. B. verzinnt, sind.7. according to claim 1 to 6, characterized in that the order the molded projections wound little winding ends least on the for the connection on the circuit board released from the isolation, and for the verb prepared in SMD technology, e.g. B. tinned are.
DE19883820976 1988-06-22 1988-06-22 SMD inductor or transformer Withdrawn DE3820976A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883820976 DE3820976A1 (en) 1988-06-22 1988-06-22 SMD inductor or transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883820976 DE3820976A1 (en) 1988-06-22 1988-06-22 SMD inductor or transformer

Publications (1)

Publication Number Publication Date
DE3820976A1 true DE3820976A1 (en) 1989-12-28

Family

ID=6356952

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883820976 Withdrawn DE3820976A1 (en) 1988-06-22 1988-06-22 SMD inductor or transformer

Country Status (1)

Country Link
DE (1) DE3820976A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393599A2 (en) * 1989-04-19 1990-10-24 Siemens Aktiengesellschaft Surface mounted electric coil
DE19812836A1 (en) * 1998-03-24 1999-09-30 Pemetzrieder Neosid Inductive miniature component for SMD assembly
DE19547091B4 (en) * 1995-12-16 2005-04-07 Kaschke Kg (Gmbh & Co.) Antenna coil with surface mountable housing and method of making the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7509610U (en) * 1975-07-17 Neosid Pemetzrieder Kg Electric coil
GB2084407A (en) * 1980-09-19 1982-04-07 Tdk Electronics Co Ltd Coil element
US4498067A (en) * 1981-04-20 1985-02-05 Murata Manufacturing Co., Ltd. Small-size inductor
EP0282646A1 (en) * 1987-03-18 1988-09-21 Robert Bosch Gmbh Ferrite core coil with more than two coil tags for reflow soldering on a printed-circuit board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7509610U (en) * 1975-07-17 Neosid Pemetzrieder Kg Electric coil
GB2084407A (en) * 1980-09-19 1982-04-07 Tdk Electronics Co Ltd Coil element
US4498067A (en) * 1981-04-20 1985-02-05 Murata Manufacturing Co., Ltd. Small-size inductor
EP0282646A1 (en) * 1987-03-18 1988-09-21 Robert Bosch Gmbh Ferrite core coil with more than two coil tags for reflow soldering on a printed-circuit board

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 61-2 80 606 A Patents Abstracts of Japan E504, May 9, 1987, Vol. 11/ No. 143 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0393599A2 (en) * 1989-04-19 1990-10-24 Siemens Aktiengesellschaft Surface mounted electric coil
EP0393599A3 (en) * 1989-04-19 1991-01-09 Siemens Aktiengesellschaft Surface mounted electric coil
DE19547091B4 (en) * 1995-12-16 2005-04-07 Kaschke Kg (Gmbh & Co.) Antenna coil with surface mountable housing and method of making the same
DE19812836A1 (en) * 1998-03-24 1999-09-30 Pemetzrieder Neosid Inductive miniature component for SMD assembly

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal