EP0371434B1 - Multipole suppression choke for data lines with multiple leads - Google Patents

Multipole suppression choke for data lines with multiple leads Download PDF

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Publication number
EP0371434B1
EP0371434B1 EP89121885A EP89121885A EP0371434B1 EP 0371434 B1 EP0371434 B1 EP 0371434B1 EP 89121885 A EP89121885 A EP 89121885A EP 89121885 A EP89121885 A EP 89121885A EP 0371434 B1 EP0371434 B1 EP 0371434B1
Authority
EP
European Patent Office
Prior art keywords
core
multipole
holder
windings
suppressor
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
EP89121885A
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German (de)
French (fr)
Other versions
EP0371434A1 (en
Inventor
Willi Wimmer
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 AT89121885T priority Critical patent/ATE89683T1/en
Publication of EP0371434A1 publication Critical patent/EP0371434A1/en
Application granted granted Critical
Publication of EP0371434B1 publication Critical patent/EP0371434B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01F17/041—Means for preventing rotation or displacement of the core
    • 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
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • 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
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F2017/065—Core mounted around conductor to absorb noise, e.g. EMI filter

Definitions

  • the invention relates to a multi-pole interference suppression choke according to the introductory part of patent claim 1.
  • interference suppression of multiple lines has so far been achieved by means of lead-in capacitors which are easier to manufacture but much less effective in terms of inductances, and which also have an inductive component by coating the inner conductor with magnetically conductive material , accomplished, whereby such an element was required for each of the often very many lines of data lines.
  • the assembly of the many individual interference suppression elements was again complex and therefore expensive.
  • the frame core or multi-hole core can be snapped into it in a particularly simple manner by machine using the snap connection provided on the holder.
  • Its special shape allows the use of automatic machines for winding the core snapped into the holder with the large number of windings, fixing the winding ends to the connecting pins carried by the holder and the subsequent connection Solder the winding ends to the connector pins.
  • subclaims relate to preferred embodiments of the interference suppressor according to claim 1.
  • Subclaims 2 and 3 relate to preferred designs of the core with regard to the fully automatic winding, and claims 4 and 5 relate to preferred measures in connection with the possibility of using placement machines in the Manufacture of the components to be equipped with a suppression choke according to the invention.
  • a frame core 1 and below it a multi-hole core 2 is shown, both of which have a substantially rectangular, elongated outer contour.
  • the frame core 1 has a substantially constant thickness around the single hole 1a, so that the single hole 1a has a cross section similar to the outer contour of the frame core 1.
  • the plurality of holes 2a have a substantially rectangular cross section and they lie in a row parallel to each other.
  • the elongated core which is a frame core 1 here, but could also be a multi-hole core 2 is received by a holder 3, into which it can be snapped onto the holder 3 by means of resilient snap hooks 3a.
  • the holder carries in a row parallel connection pins 4, which are angled at right angles to form fastening ends 4a for the winding ends and perpendicularly projecting from the bottom surface of the holder 3 contact pins 4b.
  • a plurality of windings 5 are wound side by side, the ends of which are fixed to the fastening ends 4a of the connecting pins 4.
  • the flat shape of the core part, on which the windings 5 are located, and the substantially rectangular shape of the individual opening 1a, through which they extend, enable the use of automatic winding machines to apply the windings without further ado.
  • the winding ends of the unit consisting of the holder 3 and the frame core 1 can also be fixed fully automatically to the connecting pins 4 and then soldered fully automatically.
  • the winding of the frame core 1 takes place in the assembled state with the holder 3.
  • the above also applies in connection with the use of the multi-hole core 2 shown in Fig.1.
  • the core, which also extends on the upper, longitudinally extending flat section on wound individual turns is separated from one another by magnetic inferences, ie are completely decoupled from each other.
  • the multi-pole interference suppression choke according to Fig. 2 has a configuration according to the DIL standard, so that with its contact pins 4b lying in a row with automatic assembly machines can be handled during assembly on the components to be equipped with it. For this purpose, it is preferably introduced into a housing (not shown in the drawing).

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Electroluminescent Light Sources (AREA)
  • Non-Insulated Conductors (AREA)

Abstract

The invention relates to a multipole suppression choke, in particular for data buses, which is distinguished by small dimensions and can be easily produced and handled fully automatically. This is achieved by means of a special shape of the core 1 or 2 in conjunction with a special mount 3 of plastic for the core and a snap-in device 3a on the mount for snapping the core 1 or 2 into the latter. <IMAGE>

Description

Die Erfindung bezieht sich auf eine mehrpolige Entstördrossel gemäß dem einleitenden Teil des Patentanspruchs 1.The invention relates to a multi-pole interference suppression choke according to the introductory part of patent claim 1.

Speziell in der Technik der Datenverarbeitung stellen Transienten und Hochfrequenzeinstrahlungen in die Datenleitungen ein gravierendes Problem dar. Es ist daher unabdingbar, diese Störungen von den Datenverarbeitungsgeräten fernzuhalten.Especially in the technology of data processing, transients and high-frequency radiation into the data lines represent a serious problem. It is therefore essential to keep these interferences away from the data processing devices.

Üblicherweise ist eine Entstörung mittels Induktivitäten besonders wirksam. Bisher wurden mehrpolige Einzeldrosseln im allgemeinen in Form von Ringkerndrosseln realisiert siehe z.B. EP-A-0 096 808, die wegen der zu fordernden Kleinheit von Hand bewickelt werden mußten. So ist beispielsweise derzeit eine mehrpolige Drossel im Einsatz, die einen Ringkern aufweist, auf den zehn Wicklungen à zwanzig Windungen händisch aufgebracht sind, wobei die herausstehenden Wicklungsenden händisch an entsprechende Kontakte angeschlossen sind. Das händische Aufbringen der Vielzahl von Wicklungen auf den Ringkern ist ein mühsamer, zeitraubender Vorgang, und beim händischen Anlegen der Wicklungsenden an die entsprechenden Kontakte besteht eine außerordentlich große Verwechslungsgefahr.Interference suppression using inductors is usually particularly effective. Up to now, multipole single chokes have generally been implemented in the form of toroidal core chokes, see for example EP-A-0 096 808, which had to be wound by hand because of the small size required. For example, a multi-pole choke is currently in use, which has a toroid, on which ten windings of twenty turns are manually applied, the protruding winding ends being manually connected to corresponding contacts. The manual application of the large number of windings to the toroid is a tedious, time-consuming process, and there is an extremely high risk of confusion when the winding ends are applied manually to the corresponding contacts.

Wegen der vorgenannten Schwierigkeiten bei der Fertigung von mehrpoligen Drosseln wurde die Entstörung von Mehrfachleitungen, insbesondere Datenleitungen mit mehreren Leitungszügen, bisher mittels zwar einfacher herzustellender, bezüglich Induktivitäten aber wesentlich weniger wirksamer Durchführungskondensatoren, die auch eine induktive Komponente durch Umhüllung des Innenleiters mit magnetisch leitendem Material aufweisen, bewerkstelligt, wobei für jeden der oft sehr vielen Leitungszüge der Datenleitungen ein solches Element benötigt wurde. In diesem Falle war wiederum die Montage der vielen einzelnen Entstörelemente aufwendig und damit teuer.Because of the aforementioned difficulties in the manufacture of multi-pole chokes, interference suppression of multiple lines, in particular data lines with multiple lines, has so far been achieved by means of lead-in capacitors which are easier to manufacture but much less effective in terms of inductances, and which also have an inductive component by coating the inner conductor with magnetically conductive material , accomplished, whereby such an element was required for each of the often very many lines of data lines. In this case, the assembly of the many individual interference suppression elements was again complex and therefore expensive.

In Anbetracht der Tatsache, daß einerseits eine besonders wirksame Entstörung mit Hilfe von Induktivitäten erzielbar ist und andererseits bei der Herstellung mehrpoliger Drosseln und bei der Montage von Durchführungskondensatoren bisher die vorgenannten Schwierigkeiten bestanden haben, besteht ein Bedarf für eine mehrpolige Entstördrossel, die eine Vielzahl von Induktivitäten auf kleinstem Raum vereinigt, in die Reihe der üblichen Bauteilekonfiguration paßt, um Bestückungsautomaten einsetzen zu können, und trotzdem einfach zu fertigen ist. Der Erfindung liegt die Aufgabe zugrunde, eine solche Entstördrossel zu schaffen.In view of the fact that, on the one hand, a particularly effective interference suppression can be achieved with the aid of inductors and, on the other hand, the above-mentioned difficulties have arisen in the manufacture of multi-pole chokes and in the assembly of feedthrough capacitors, there is a need for a multi-pole interference choke which has a large number of inductors combined in the smallest space, fits into the range of the usual component configuration in order to be able to use automatic placement machines, and is nevertheless easy to manufacture. The invention has for its object to provide such a suppressor.

Die vorgenannte Aufgabe wird durch die im Patentanspruch 1 genannten Merkmale gelöst.The above object is achieved by the features mentioned in claim 1.

Bei der erfindungsgemäßen Entstördrossel kann der Rahmenkern oder Viellochkern vor dem Bewickeln mit Hilfe der an der Halterung vorgesehenen Schnappverbindung besonders einfach maschinell in diese eingeschnappt werden. Seine besondere Gestalt gestattet den Einsatz von Automaten für das Bewickeln des in die Halterung eingeschnappten Kerns mit der Vielzahl von Wicklungen, das Festlegen der Wicklungsenden an den von der Halterung getragenen Anschlußstiften und das anschließende Verlöten der Wicklungsenden mit den Anschlußstiften.In the suppression choke according to the invention, the frame core or multi-hole core can be snapped into it in a particularly simple manner by machine using the snap connection provided on the holder. Its special shape allows the use of automatic machines for winding the core snapped into the holder with the large number of windings, fixing the winding ends to the connecting pins carried by the holder and the subsequent connection Solder the winding ends to the connector pins.

Die Unteransprüche betreffen bevorzugte Ausführungsformen der Entstördrossel gemäß Patentanspruch 1. Die Unteransprüche 2 und 3 haben bevorzugte Gestaltungen des Kerns im Hinblick auf das vollautomatische Bewickeln zum Gegenstand, und die Patentansprüche 4 und 5 betreffen bevorzugte Maßnahmen im Zusammenhang mit der Möglichkeit des Einsatzes von Bestükkungsautomaten bei der Fertigung der mit einer erfindungsgemäßen Entstördrossel auszurüstenden Bauteile.The subclaims relate to preferred embodiments of the interference suppressor according to claim 1. Subclaims 2 and 3 relate to preferred designs of the core with regard to the fully automatic winding, and claims 4 and 5 relate to preferred measures in connection with the possibility of using placement machines in the Manufacture of the components to be equipped with a suppression choke according to the invention.

Nachstehend wird ein Ausführungsbeispiel der mehrpoligen Entstördrossel gemäß der Erfindung anhand der Zeichnung näher erläutert.An exemplary embodiment of the multi-pole interference suppression choke according to the invention is explained in more detail with reference to the drawing.

In der Zeichnung zeigt, jeweils in perspektivischer Darstellung,

Abb.1
je eine bevorzugte Ausführungsform eines Rahmenkernes und eines Viellochkernes für die Entstördrossel, und
Abb.2
eine vollständige mehrpolige Entstördrossel mit einem Rahmenkern gemäß Abb. 1.
The drawing shows, each in perspective,
Fig.1
each a preferred embodiment of a frame core and a multi-hole core for the interference suppression, and
Fig.2
a complete multi-pole interference suppression choke with a frame core as shown in Fig. 1.

In Abb. 1 ist oben ein Rahmenkern 1 und darunter ein Viellochkern 2 dargestellt, die beide einen im wesentlichen rechteckigen, langgestreckten Außenumriß aufweisen. Der Rahmenkern 1 hat um das Einzelloch 1a herum eine im wesentlichen gleichbleibende Dicke, sodaß das Einzelloch 1a einen dem Außenumriß des Rahmenkerns 1 ähnlichen Querschnitt aufweist.In Fig. 1, a frame core 1 and below it a multi-hole core 2 is shown, both of which have a substantially rectangular, elongated outer contour. The frame core 1 has a substantially constant thickness around the single hole 1a, so that the single hole 1a has a cross section similar to the outer contour of the frame core 1.

Auch beim Viellochkern 2 haben die mehreren Löcher 2a einen im wesentlichen rechteckigen Querschnitt, und sie liegen in einer Reihe parallel nebeneinander.Also in the multi-hole core 2, the plurality of holes 2a have a substantially rectangular cross section and they lie in a row parallel to each other.

Gemäß Abb. 2 wird der langgestreckte Kern, der hier ein Rahmenkern 1 ist, aber auch ein Viellochkern 2 sein könnte, von einer Halterung 3 aufgenommen, in die er mit Hilfe von elastisch nachgiebigen Schnapphaken 3a an der Halterung 3 einschnappbar ist. Die Halterung trägt in einer Reihe parallel zueinander angeordnete Anschlußstifte 4, die zur Bildung von Befestigungsenden 4a für die Wicklungsenden und senkrecht von der Bodenfläche der Halterung 3 vorragenden Kontaktstiften 4b rechtwinklig abgewinkelt sind.According to Fig. 2, the elongated core, which is a frame core 1 here, but could also be a multi-hole core 2, is received by a holder 3, into which it can be snapped onto the holder 3 by means of resilient snap hooks 3a. The holder carries in a row parallel connection pins 4, which are angled at right angles to form fastening ends 4a for the winding ends and perpendicularly projecting from the bottom surface of the holder 3 contact pins 4b.

Auf den sich in Längsrichtung des Kerns erstreckenden oberen Abschnitt des Rahmenkernes 1 sind nebeneinander mehrere Wicklungen 5 aufgewickelt, deren Enden an den Befestigungsenden 4a der Anschlußstifte 4 festgelegt sind. Die flache Form des Kernteiles, auf dem sich die Wicklungen 5 befinden, und die im wesentlichen rechteckige Form der Einzelöffnung 1a, durch die sich diese hindurcherstrecken, ermöglichen ohne weiteres den Einsatz von Wickelautomaten zum Aufbringen der Wicklungen. Auch die Wicklungsenden können bei der aus der Halterung 3 und dem Rahmenkern 1 bestehenden Einheit vollautomatisch an den Anschlußstiften 4 festgelegt und danach vollautomatisch verlötet werden. Das Bewickeln des Rahmenskernes 1 erfolgt im mit der Halterung 3 zusammengebauten Zustand. Das Vorhergesagte gilt auch im Zusammenhang mit der Verwendung des in Abb.1 dargestellten Viellochkernes 2. Der Unterschied besteht lediglich darin, daß die ebenfalls auf den oberen, sich in Längsrichtung erstreckenden flachen Abschitt des Kernes auf gewickelten einzelnen Windungen durch magnetische Rückschlüsse voneinander getrennt, also vollständig in Bezug aufeinander entkoppelt sind.On the upper section of the frame core 1, which extends in the longitudinal direction of the core, a plurality of windings 5 are wound side by side, the ends of which are fixed to the fastening ends 4a of the connecting pins 4. The flat shape of the core part, on which the windings 5 are located, and the substantially rectangular shape of the individual opening 1a, through which they extend, enable the use of automatic winding machines to apply the windings without further ado. The winding ends of the unit consisting of the holder 3 and the frame core 1 can also be fixed fully automatically to the connecting pins 4 and then soldered fully automatically. The winding of the frame core 1 takes place in the assembled state with the holder 3. The above also applies in connection with the use of the multi-hole core 2 shown in Fig.1. The only difference is that the core, which also extends on the upper, longitudinally extending flat section on wound individual turns, is separated from one another by magnetic inferences, ie are completely decoupled from each other.

Die mehrpolige Entstördrossel gemäß Abb. 2 hat eine Konfiguration gemäß DIL-Norm, so daß sie mit ihren in einer Reihe liegenden Kontaktstiften 4b mit automatischen Bestückungsmaschinen bei der Montage auf den mit ihr auszurüstenden Bauteilen gehandhabt werden kann. Vorzugsweise wird sie hierfür noch in ein in der Zeichnung nicht dargestelltes Gehäuse eingebracht.The multi-pole interference suppression choke according to Fig. 2 has a configuration according to the DIL standard, so that with its contact pins 4b lying in a row with automatic assembly machines can be handled during assembly on the components to be equipped with it. For this purpose, it is preferably introduced into a housing (not shown in the drawing).

Claims (5)

  1. Multipole suppressor choke with several windings (5) wound on a single core, especially for data conductors with several leads, characterised by an elongated core (1, 2), which either encloses an elongate single aperture in the manner of a frame (frame core 1) or has several apertures disposed beside one another in its longitudinal direction (multiple aperture core 2), a plurality of windings (5) which are wound through the single aperture (1a) or the several apertures (2a) on portions of the core (1, 2) extending in the longitudinal direction thereof, a holder (3) of synthetic material for the core (1, 2), which holder carries terminal pins (4) for the ends of the windings (5) in an arrangement of one beside the other in longitudinal direction of the core (1, 2), and a snap device (3a) at the holder (3) for snapping of the core (1, 2) in the holder (3).
  2. Multipole suppressor choke according to claim 1, characterised thereby tht the core (1, 2) has a substantially rectangular outer circumference.
  3. Multipole suppressor choke according to claim 1 or 2, characterised thereby that the single aperture (1a) on the several apertures (2a) each have a substantially rectangular cross-section.
  4. Multipole suppressor chock according to one of the preceding claims, characterised by a configuration according to DIL standard.
  5. Multipole suppressor choke according to one of the preceding claims, characterised thereby that it is housed in a housing.
EP89121885A 1988-12-01 1989-11-27 Multipole suppression choke for data lines with multiple leads Expired - Lifetime EP0371434B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89121885T ATE89683T1 (en) 1988-12-01 1989-11-27 MULTI-POLE SUPPRESSION CHOKE, ESPECIALLY FOR DATA LINES WITH SEVERAL CABLES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840523 1988-12-01
DE3840523A DE3840523A1 (en) 1988-12-01 1988-12-01 MULTIPOLE INTERFERENCE CHASSIS FOR DATA LINES

Publications (2)

Publication Number Publication Date
EP0371434A1 EP0371434A1 (en) 1990-06-06
EP0371434B1 true EP0371434B1 (en) 1993-05-19

Family

ID=6368257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121885A Expired - Lifetime EP0371434B1 (en) 1988-12-01 1989-11-27 Multipole suppression choke for data lines with multiple leads

Country Status (3)

Country Link
EP (1) EP0371434B1 (en)
AT (1) ATE89683T1 (en)
DE (2) DE3840523A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332638A1 (en) * 1993-09-24 1995-03-30 Siemens Matsushita Components Chip inductance
DE4421986A1 (en) * 1994-06-23 1996-01-04 Miele & Cie Radio interference filter for electronically-controlled device
DE19600308A1 (en) * 1996-01-05 1997-07-10 Siemens Matsushita Components Inductive component for damping common-mode and push-pull interference
DE10000118B4 (en) * 2000-01-04 2004-05-13 Epcos Ag Magnetic core
DE102013205977A1 (en) * 2012-04-04 2013-10-10 Continental Automotive Gmbh Core for easy achievement of common-mode damping properties in ECUs
DE102012215862B4 (en) * 2012-09-06 2022-10-06 Deutsches Zentrum für Luft- und Raumfahrt e.V. Surface mount choke

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1614522C3 (en) * 1967-05-12 1975-05-15 Siemens Ag, 1000 Berlin Und 8000 Muenchen Magnetic component
DE8015111U1 (en) * 1980-06-06 1980-09-04 Vogt Gmbh & Co Kg, 8391 Erlau CURRENT COMPENSATED EMISSION CONTROLLER FOR HIGHER CURRENTS
DE3220737A1 (en) * 1982-06-02 1983-12-08 Siemens AG, 1000 Berlin und 8000 München COLUMN-LOW RADIO EMISSION CONTROL
JPS58110A (en) * 1982-06-21 1983-01-05 Toshiba Corp Manufacture of induction electrical apparatus
JPH0246098Y2 (en) * 1984-11-06 1990-12-05
GB8520997D0 (en) * 1985-08-22 1985-09-25 Emc Datacare Ltd Radio frequency choke
US4656451A (en) * 1986-01-23 1987-04-07 Ferronics, Inc. Electronic noise suppressor
DE3779608D1 (en) * 1986-12-23 1992-07-09 Siemens Ag CURRENT COMPENSATED THROTTLE FOR RADIO INTERFERENCE.

Also Published As

Publication number Publication date
DE3840523A1 (en) 1990-06-07
ATE89683T1 (en) 1993-06-15
DE3840523C2 (en) 1993-09-23
EP0371434A1 (en) 1990-06-06
DE58904425D1 (en) 1993-06-24

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