EP0801443A1 - Noise-damping arrangement for damping noise currents of electronic devices - Google Patents

Noise-damping arrangement for damping noise currents of electronic devices Download PDF

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Publication number
EP0801443A1
EP0801443A1 EP97105377A EP97105377A EP0801443A1 EP 0801443 A1 EP0801443 A1 EP 0801443A1 EP 97105377 A EP97105377 A EP 97105377A EP 97105377 A EP97105377 A EP 97105377A EP 0801443 A1 EP0801443 A1 EP 0801443A1
Authority
EP
European Patent Office
Prior art keywords
damping
operating current
pin
noise
damping device
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
EP97105377A
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German (de)
French (fr)
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EP0801443B1 (en
Inventor
Hans-Joachim Poess
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.)
Vacuumschmelze GmbH and Co KG
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Vacuumschmelze GmbH and Co KG
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Application filed by Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of EP0801443A1 publication Critical patent/EP0801443A1/en
Application granted granted Critical
Publication of EP0801443B1 publication Critical patent/EP0801443B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters

Definitions

  • the invention relates to a damping device for interference currents which are superimposed on an operating current and have a higher frequency than the operating current, at least consisting of an inductance through which the operating current flows.
  • the object of the present invention is now a damping device for electronic consumers using the special properties of the nanocrystalline and / or amorphous materials with a relative permeability of over 20,000 in order to produce a damping of interference currents of electronic components in a wide frequency range, without the need for special components.
  • This object is achieved in that an inductor made of amorphous or nanocrystalline material with a relative permeability of more than 20,000 existing toroid is applied to a pin inside the housing of a plug connection.
  • the housing 1 is shown consisting of two joined parts 2 and 3.
  • the pins 4 are fastened in a holding body 6 via insulation material 5 and are, for example, at a distance of 3 mm from one another.
  • the part 3 is at a distance from the holding body 6.
  • the intermediate space thus formed is used according to the invention to accommodate cores 7, which consist of amorphous or nanocrystalline tape.
  • the material of these cores has a relative permeability of over 20,000 and thus gives the pin 4, which surround them, an inductive resistance that prevents high-frequency interference currents and thus significantly improves the electromagnetic compatibility of the device connected to the plug, without additional space for damping devices is available.
  • a further improvement can be achieved if the cores 7 are insulated from the pins 4 and the cores 7 are electrically connected to the housing 1.
  • the cores 7 serve, in addition to their effect as inductors, as electrodes of a capacitor, the other electrode of which is the pin 4 represents. This results in a certain resonant circuit effect, which further improves protection against high-frequency interference currents. Since amorphous or nanocrystalline tapes are cast directly from the melt into extremely thin-walled tapes, the cores wound from them can be dimensioned so small that they can also be attached to pins whose spacing is less than, for example, 4 mm from one another.
  • the effect of the damping device already results if only one pin is provided with such a core.
  • An improvement is achieved, however, if several or all of the pins of a plug are surrounded by such a ring core.
  • each pin is to be provided with a ring core, it is necessary to choose the outer diameter of the ring core to be smaller than the free space between two pins 4.

Landscapes

  • Coils Or Transformers For Communication (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Soft Magnetic Materials (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

The HF interference current suppression device uses an inductance through which the operating current is passed, provided by an annular core (7) of an amorphous or nano-crystalline material with a relative permeability of above 20000. The core is fitted over a pin (4) within a plug connector housing (1). A capacitor can be connected between the operating current lead and earth, with the annular core insulated relative to the pin and connected to earth, so that it acts as a capacitor electrode.

Description

Die Erfindung betrifft eine Dämpfungseinrichtung für einem Betriebsstrom überlagerte, gegenüber dem Betriebsstrom höherfrequente Störströme, mindestens bestehend aus einer vom Betriebsstrom durchflossenen Induktivität.The invention relates to a damping device for interference currents which are superimposed on an operating current and have a higher frequency than the operating current, at least consisting of an inductance through which the operating current flows.

Aus EP 057 832 B1 ist es bekannt, zur Funkentstörung stromkompensierte Drosseln vorzusehen, die in Reihe zum Verbraucher geschaltet sind, während Kondensatoren zwischen den Verbraucherzuleitungen und Masse geschaltet sind. Zusätzlich ist es hieraus bekannt, zur Verminderung von einer Gleichspannung überlagerten Wechselspannung bzw. -strömen eine vom Betriebsstrom durchflossene Induktivität vorzusehen sowie einen Kondensator zwischen der Leitung mit Betriebsspannung und Masse anzuordnen. Die Induktivität bildet zusammen mit dem Kondensator ein Glättungsglied, welches überlagerte Störströme in einem weiten Bereich dämpft. Hierbei wirkt der Kondensator insbesondere bei sehr hochfrequenten Strömen, während weniger hochfrequente Störströme insbesondere durch die Induktivität vermindert werden.From EP 057 832 B1 it is known to provide current-compensated chokes for radio interference suppression which are connected in series to the consumer, while capacitors are connected between the consumer leads and ground. In addition, it is known from this to provide an inductance through which the operating current flows to reduce an alternating voltage or currents superimposed on a direct voltage, and to arrange a capacitor between the line with the operating voltage and ground. Together with the capacitor, the inductance forms a smoothing element that dampens superimposed interference currents over a wide range. Here, the capacitor acts in particular with very high-frequency currents, while less high-frequency interference currents are reduced, in particular, by the inductance.

Aus EP 0299 498 A1 ist es weiterhin bekannt, magnetische Kerne herzustellen, die aus nanokristallinem Material bestehen. Hierdurch lassen sich Ringkerne mit relativ hoher Permeabilität herstellen.It is also known from EP 0299 498 A1 to produce magnetic cores which consist of nanocrystalline material. As a result, toroidal cores with a relatively high permeability can be produced.

Aufgabe der vorliegenden Erfindung ist es nun, eine Dämpfungseinrichtung für elektronische Verbraucher unter Ausnutzung der besonderen Eigenschaften der nanokristallinen und/oder amorphen Materialien mit einer relativen Permeabilität von über 20 000 auszunutzen, um eine Dämpfung von Störströmen elektronischer Komponenten in einem weiten Frequenzbereich zu erzeugen, ohne daß hierzu besondere Bauelemente erforderlich sind.The object of the present invention is now a damping device for electronic consumers using the special properties of the nanocrystalline and / or amorphous materials with a relative permeability of over 20,000 in order to produce a damping of interference currents of electronic components in a wide frequency range, without the need for special components.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß als Induktivität ein aus amorphem oder nanokristallinem Material mit einer relativen Permeabilität vom mehr als 20 000 bestehender Ringkern auf einen Stift innerhalb des Gehäuses einer Steckverbindung aufgebracht ist.This object is achieved in that an inductor made of amorphous or nanocrystalline material with a relative permeability of more than 20,000 existing toroid is applied to a pin inside the housing of a plug connection.

Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous further developments are described in the subclaims.

In der Zeichnung ist das Gehäuse 1 bestehend aus zwei zusammengefügten Teilen 2 und 3 dargestellt. Die Stifte 4 sind über Isolationsmaterial 5 in einem Haltekörper 6 befestigt und besitzen beispielsweise einen Abstand von 3 mm voneinander. Üblicherweise hat bei genormten Steckergehäusen das Teil 3 von dem Haltekörper 6 einen Abstand. Der dadurch gebildete Zwischenraum wird erfindungsgemäß ausgenutzt, um Kerne 7, die aus amorphem oder nanokristallinem Band bestehen, unterzubringen. Das Material dieser Kerne besitzt eine relative Permeabilität von über 20.000 und verleiht so dem Stift 4, den sie umgeben, einen induktiven Widerstand, der hochfrequente Störströme verhindert und somit die elektromagnetische Verträglichkeit des mit dem Stecker verbundenen Gerätes wesentlich verbessert, ohne daß zusätzlicher Raum für Dämpfungseinrichtungen vorhanden ist. Eine weitere Verbesserung kann man erreichen, wenn man die Kerne 7 gegenüber den Stiften 4 isoliert und die Kerne 7 elektrisch mit dem Gehäuse 1 verbindet. Hierdurch erreicht man, daß die Kerne 7 zusätzlich zu ihrer Wirkung als Induktivität als Elektrode eines Kondensators dienen, dessen andere Elektrode der Stift 4 darstellt. Somit ergibt sich ein gewisser Schwingkreiseffekt, der eine weitere Verbesserung des Schutzes gegen hochfrequente Störströme erreicht. Da amorphe bzw. nanokristalline Bänder direkt aus der Schmelze zu extrem dünnwandigen Bändern gegossen werden, können die daraus gewickelten Kerne so klein dimensioniert werden, daß sie auch auf Stifte aufgesteckt werden können, deren Abstand geringer ist als beispielsweise 4 mm voneinander.In the drawing, the housing 1 is shown consisting of two joined parts 2 and 3. The pins 4 are fastened in a holding body 6 via insulation material 5 and are, for example, at a distance of 3 mm from one another. Usually, in the case of standardized connector housings, the part 3 is at a distance from the holding body 6. The intermediate space thus formed is used according to the invention to accommodate cores 7, which consist of amorphous or nanocrystalline tape. The material of these cores has a relative permeability of over 20,000 and thus gives the pin 4, which surround them, an inductive resistance that prevents high-frequency interference currents and thus significantly improves the electromagnetic compatibility of the device connected to the plug, without additional space for damping devices is available. A further improvement can be achieved if the cores 7 are insulated from the pins 4 and the cores 7 are electrically connected to the housing 1. As a result, the cores 7 serve, in addition to their effect as inductors, as electrodes of a capacitor, the other electrode of which is the pin 4 represents. This results in a certain resonant circuit effect, which further improves protection against high-frequency interference currents. Since amorphous or nanocrystalline tapes are cast directly from the melt into extremely thin-walled tapes, the cores wound from them can be dimensioned so small that they can also be attached to pins whose spacing is less than, for example, 4 mm from one another.

Der Effekt der Dämpfungseinrichtung ergibt sich prinzipiell schon, wenn nur ein Stift mit einem solchen Kern versehen ist. Eine Verbesserung erzielt man jedoch, wenn mehrere bzw. alle Stifte eines Steckers von einem derartigen Ringkern umgeben sind. Wenn allerdings jeder Stift mit einem Ringkern versehen werden soll, ist es erforderlich, den Außendurchmesser des Ringkerns kleiner zu wählen, als der freie Zwischenraum zwischen zwei Stiften 4 beträgt.In principle, the effect of the damping device already results if only one pin is provided with such a core. An improvement is achieved, however, if several or all of the pins of a plug are surrounded by such a ring core. However, if each pin is to be provided with a ring core, it is necessary to choose the outer diameter of the ring core to be smaller than the free space between two pins 4.

Claims (5)

Dämpfungseinrichtung für einem Betriebsstrom überlagerte, gegenüber dem Betriebsstrom höherfrequente Störströme, mindestens bestehend aus einer vom Betriebsstrom durchflossenen Induktivität, dadurch gekennzeichnet , daß als Induktivität ein aus amorphem oder nanokristallinem Material mit einer relativen Permeabilität vom mehr als 20000 bestehender Ringkern (7) auf einen Stift (4) innerhalb des Gehäuses (1) einer Steckverbindung aufgebracht ist.Damping device for an operating current superimposed on the operating current, higher-frequency interference currents, at least consisting of an inductance through which the operating current flows, characterized in that the inductance is an amorphous or nanocrystalline material with a relative permeability of more than 20,000 toroidal core (7) onto a pin ( 4) a plug connection is applied within the housing (1). Dämpfungseinrichtung nach Anspruch 1, mit einem Kondensator, der zwischen den vom Betriebsstrom durchflossenen Leiter und Masse geschaltet ist, dadurch gekennzeichnet , daß der Ringkern gegenüber dem Stift isoliert und mit Masse verbunden ist, so daß der Ringkern gleichzeitig als Elektrode des Kondensators wirkt.Damping device according to claim 1, with a capacitor which is connected between the conductor and ground through which the operating current flows, characterized in that the ring core is insulated from the pin and connected to ground, so that the ring core simultaneously acts as an electrode of the capacitor. Dämpfungseinrichtung nach Anspruch 1, dadurch gekennzeichnet , daß der Ringkern auf einen Stift in einer Steckverbindung aufgebracht ist, deren Stifte voneinander einen Abstand von unter 4 mm haben.Damping device according to claim 1, characterized in that the toroidal core is applied to a pin in a plug connection, the pins of which are at a distance of less than 4 mm from one another. Dämpfungseinrichtung nach Anspruch 3, dadurch gekennzeichnet , daß mehrere Stifte der Steckverbindung mit Ringbandkernen versehen sind.Damping device according to claim 3, characterized in that several pins of the plug connection are provided with toroidal cores. Dämpfungseinrichtung nach Anspruch 3, dadurch gekennzeichnet , daß der Außendurchmesser des Ringkerns kleiner ist als der freie Zwischenraum zwischen zwei Stiften.Damping device according to claim 3, characterized in that the outer diameter of the ring core is smaller than the free space between two pins.
EP97105377A 1996-04-12 1997-04-01 Noise-damping arrangement for damping noise currents of electronic devices Expired - Lifetime EP0801443B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19614507 1996-04-12
DE19614507 1996-04-12

Publications (2)

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EP0801443A1 true EP0801443A1 (en) 1997-10-15
EP0801443B1 EP0801443B1 (en) 2003-02-19

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EP97105377A Expired - Lifetime EP0801443B1 (en) 1996-04-12 1997-04-01 Noise-damping arrangement for damping noise currents of electronic devices

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EP (1) EP0801443B1 (en)
JP (1) JPH1064628A (en)
DE (1) DE59709325D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1877761B (en) * 2006-06-26 2010-05-26 天通控股股份有限公司 Method for fabricating nickel zinc ferrite integrated with PIN and dedicated smelting tool therefor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5216265B2 (en) * 2006-10-10 2013-06-19 Ｎｅｃトーキン株式会社 Inductance element, filter circuit, and noise filter
CN111613440B (en) * 2020-06-12 2022-03-29 佛山市顺德区科晟电子股份有限公司 Automatic heat dissipation capacitor capable of preventing welding heat damage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879691A (en) * 1971-07-28 1975-04-22 Amp Inc Pluggable filter unit
EP0070683A2 (en) * 1981-07-17 1983-01-26 Automation Industries Inc. Electrical connector and filter circuit
DE3526047A1 (en) * 1985-07-20 1987-01-22 Vacuumschmelze Gmbh CURRENT COMPENSATING RADIO INTERFERENCE THROTTLE
EP0299498A1 (en) * 1987-07-14 1989-01-18 Hitachi Metals, Ltd. Magnetic core and method of producing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879691A (en) * 1971-07-28 1975-04-22 Amp Inc Pluggable filter unit
EP0070683A2 (en) * 1981-07-17 1983-01-26 Automation Industries Inc. Electrical connector and filter circuit
DE3526047A1 (en) * 1985-07-20 1987-01-22 Vacuumschmelze Gmbh CURRENT COMPENSATING RADIO INTERFERENCE THROTTLE
EP0299498A1 (en) * 1987-07-14 1989-01-18 Hitachi Metals, Ltd. Magnetic core and method of producing same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BOLI R.: "WEICHMAGNETISCHE WERKSTOFFE.EINFÜRUNG IN DEN MAGNETISMUS. VAC-WERKSTOFFE UND IHRE ANWENDUNGEN.", 1990, VACUUMSCHMELZE GMBH, HANAU, XP002035600, 220700 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1877761B (en) * 2006-06-26 2010-05-26 天通控股股份有限公司 Method for fabricating nickel zinc ferrite integrated with PIN and dedicated smelting tool therefor

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Publication number Publication date
EP0801443B1 (en) 2003-02-19
DE59709325D1 (en) 2003-03-27
JPH1064628A (en) 1998-03-06

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