EP0194424A1 - Dispositif pour la protection de circuits électriques - Google Patents

Dispositif pour la protection de circuits électriques Download PDF

Info

Publication number
EP0194424A1
EP0194424A1 EP86100954A EP86100954A EP0194424A1 EP 0194424 A1 EP0194424 A1 EP 0194424A1 EP 86100954 A EP86100954 A EP 86100954A EP 86100954 A EP86100954 A EP 86100954A EP 0194424 A1 EP0194424 A1 EP 0194424A1
Authority
EP
European Patent Office
Prior art keywords
connection
plug
plug connection
supply lines
shielding housing
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.)
Ceased
Application number
EP86100954A
Other languages
German (de)
English (en)
Inventor
Niyazi Dr. Ari
Diethard Dr. Hansen
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0194424A1 publication Critical patent/EP0194424A1/fr
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Such a device protects electrical circuits against interference caused by electromagnetic fields, but not against interference that can penetrate into the housing via the connecting or supply lines, ie against so-called line-related interference.
  • electrical circuits are protected against conducted interference, in particular overvoltages, by Zener diodes, but these are generally arranged within the housing.
  • the interference can therefore penetrate into the interior of the shielding housing and, even if the Zener diodes respond correctly, can cause considerable damage if the amplitude is sufficient by coupling.
  • NEMP nuclear electro-magnetic pulse
  • the invention as characterized in claim 1, solves the problem of preventing the penetration of line-borne interference into the shielding housing in a technically simple, rational and therefore inexpensive manner.
  • the advantages of the invention are essentially to be seen in the fact that the conducted interference is diverted to the shielding housing before it can penetrate it.
  • the arrangement of the surge arresters in the plug connection has the advantage that there is no line section outside the shielding housing in which interference can be coupled in via electromagnetic fields.
  • the inventive design of the plug connection with regard to its number of poles and the function assignment of the individual poles has the particular advantage that a single type of plug connection can be used universally for a large number of different electrical circuits. It is therefore not necessary to adapt the plug connection to the particular electrical circuit, in particular to dimension the surge arrester in each case. Existing electrical circuits can therefore also be retrospectively protected against wired interference without having to worry about their internal structure.
  • Fig. 1 denotes a circuit board which is a carrier of an electrical circuit in a manner not shown.
  • the circuit board 1 is enclosed in an electrically conductive shield housing 2.
  • the connection and supply lines 3 for the electrical circuit mounted on the printed circuit board 1, of which a number of 8 is shown in FIG. 1, are led through the wall of the shielding housing 2 via a multipole plug connection 4.
  • the plug connection 4 has a first part 4.1, which is fixedly mounted in the wall of the shielding housing 2, and a second part 4.2, which can be detached from the shielding housing.
  • the latter can, as shown in Fig. 1, contain contact pins 4.2.1, which can be inserted into corresponding sockets 4.1.1 of the fixed part of the connector 4.1.
  • the contact pins and sockets can also be arranged in the other part of the plug connection 4.
  • the connection and supply lines 3 are connected via a surge arrester 4.2.3 to a common contact 4.2.4.
  • This is preferably as an outer conductive shield of the detachable part of the connector 4.2 and the connection and Supply lines 3 are formed and in the plugged-in state of the detachable part of the connector 4.2 on the fixed part of the connector 4.1 with the shielding housing 2 in a highly conductive connection.
  • a well conductive connection of the contact 4.2.4 to the shielding housing 2 can be achieved, for example, by correspondingly large contact surfaces of the contact 4.2.4 on the housing 2.
  • Zn0 varistors are preferably used as the surge arrester 4.2.3.
  • the connection and supply lines 3, as shown in FIG. 2 in a section through the detachable part of the plug connection 4.2 along the section line AA can be simply carried out by ZnO disks, which in connection with the common contact 4.2.4 stand.
  • the thickness d of the Zn0 layer between the connection and supply lines 3 and the common contact 4.2.4 determines the response threshold, i.e. the protection level of the varistor.
  • the individual ZnO disks can be embedded in a non-conductive material 4.2.5 and thus mechanically held and electrically insulated from one another.
  • fast Zener diodes can also be used as surge arresters, i.e. those that switch within a few ns.
  • any one of the connecting or supply lines 3 reaches the response level of the respective surge arrester 4.2.3, it switches to the conductive state and limits the voltage by current dissipation to the common contact 4.2.4 and from there to the shielding housing 2. that can be caused on the connection or supply lines 3 by an external fault do not penetrate into the interior of the shielding housing 2 for the electrical circuit.
  • the overvoltage arresters 4.2.3 naturally also limit those overvoltages that have their cause inside the shielding housing 2.
  • the electrical circuit 1 can therefore not be a source of overvoltages for other circuits which are connected to it via the connection and supply lines 3.
  • the plug connection 4 In the area of the data input lines 3.2 and data output lines 3.3, two poles of the plug connection 4 are not connected in FIG. 1. However, these excess poles can be used when contacting an electrical circuit other than that in the example in FIG. 1. They are expediently connected to the common contact 4.2.4 and can thus help to prevent overlapping between the poles adjacent to them. ⁇ As many poles are to be provided in the plug connection 4 for each type of line as the circuit with most lines of this type has lines of this type under all the given circuits. Overall, the plug connection 4 must therefore have at least as many poles as in the given number of different electrical circuits, the combination of all connection and supply lines contains 3 elements which differ from one another in terms of their type, in particular the voltage amplitude permissible on them.
  • the standardization of the plug connection 4 is expediently completed by assigning the individual line types to fixed poles or pole groups of the plug connection 4 for all predetermined circuits and adapting the surge arrester 4.2.3 to the desired protection level of the individual line types.
  • the plug-in connection can also be subdivided into several sub-units, each of which is adapted to a specific type of line with regard to the surge arrester 4.2.3.
  • the breakdown can also be such that certain functional groups of lines, such as e.g. only input or only output lines are combined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Thermistors And Varistors (AREA)
EP86100954A 1985-02-08 1986-01-24 Dispositif pour la protection de circuits électriques Ceased EP0194424A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH577/85A CH667960A5 (de) 1985-02-08 1985-02-08 Vorrichtung zum schutz elektrischer schaltungen.
CH577/85 1985-02-08

Publications (1)

Publication Number Publication Date
EP0194424A1 true EP0194424A1 (fr) 1986-09-17

Family

ID=4190221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100954A Ceased EP0194424A1 (fr) 1985-02-08 1986-01-24 Dispositif pour la protection de circuits électriques

Country Status (4)

Country Link
EP (1) EP0194424A1 (fr)
JP (1) JPS61287101A (fr)
CH (1) CH667960A5 (fr)
NO (1) NO855381L (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209893A (en) * 1987-09-12 1989-05-24 Rainford Racks Limited Shielded line protection device
DE9107385U1 (de) * 1991-06-14 1992-07-16 Filtec Filtertechnologie für die Elektronikindustrie GmbH, 59557 Lippstadt Mehrpoliger Steckverbinder für elektronische Signalleitungen
US5181864A (en) * 1990-12-03 1993-01-26 Murata Manufacturing Co., Ltd. Connector
EP0577311A1 (fr) * 1992-06-30 1994-01-05 The Whitaker Corporation Dispositif de protection contre les surcharges électriques et connecteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH482320A (de) * 1969-01-16 1969-11-30 Sprecher & Schuh Ag Elektrische Mehrfach-Steckverbindung
US3711794A (en) * 1971-10-21 1973-01-16 Gen Electric Surge suppression transmission means
US3850498A (en) * 1971-05-27 1974-11-26 Amp Inc Filter assembly for printed circuit board connectors
US4265506A (en) * 1979-08-17 1981-05-05 Amp Incorporated Filtered connector assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140047A (en) * 1981-02-24 1982-08-30 Nissan Motor Co Ltd Noise preventing device for electronic controller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH482320A (de) * 1969-01-16 1969-11-30 Sprecher & Schuh Ag Elektrische Mehrfach-Steckverbindung
US3850498A (en) * 1971-05-27 1974-11-26 Amp Inc Filter assembly for printed circuit board connectors
US3711794A (en) * 1971-10-21 1973-01-16 Gen Electric Surge suppression transmission means
US4265506A (en) * 1979-08-17 1981-05-05 Amp Incorporated Filtered connector assembly

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS, Band 38, Nr. 10, 17. Mai 1965, Seiten 65-67, New York, US; E. ROWLANDS et al.: "Suppressing noise at the connector" *
PATENTS ABSTRACTS OF JAPAN, Band 6, Nr. 238 (E-144) [1116], 26. November 1982; & JP - A - 57 140 047 (NISSAN JIDOSHA K.K.) 30.08.1982 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209893A (en) * 1987-09-12 1989-05-24 Rainford Racks Limited Shielded line protection device
US5181864A (en) * 1990-12-03 1993-01-26 Murata Manufacturing Co., Ltd. Connector
DE9107385U1 (de) * 1991-06-14 1992-07-16 Filtec Filtertechnologie für die Elektronikindustrie GmbH, 59557 Lippstadt Mehrpoliger Steckverbinder für elektronische Signalleitungen
EP0517952A2 (fr) * 1991-06-14 1992-12-16 FILTEC FILTERTECHNOLOGIE FUR DIE ELEKTRONIKINDUSTRIE GmbH Connecteur électrique multipolaire pour lignes de signaux électroniques
EP0517952A3 (en) * 1991-06-14 1993-08-11 Filtec Filtertechnologie Fur Die Elektronikindustrie Gmbh Multipole electrical connector for electronic signal lines
EP0577311A1 (fr) * 1992-06-30 1994-01-05 The Whitaker Corporation Dispositif de protection contre les surcharges électriques et connecteur

Also Published As

Publication number Publication date
CH667960A5 (de) 1988-11-15
NO855381L (no) 1986-08-11
JPS61287101A (ja) 1986-12-17

Similar Documents

Publication Publication Date Title
DE69120063T2 (de) Schaltungsbauelemente und schaltungen für netzleitungsfilter und überspannungsschutz
DE69525207T2 (de) Schützende Durchführung
CH675933A5 (en) Triaxial electromagnetic pulse conductor - has inner conductor and two screening conductors with unit to maintain contact with overload conductor
EP2128941B1 (fr) Appareil de protection contre les surtensions
DE69002847T2 (de) Elektrische Verbinder.
DE4036081A1 (de) Tragbare halbleiterspeichervorrichtung
EP0152127A2 (fr) Dispositif pour la supression de pointes de surtension
EP0194424A1 (fr) Dispositif pour la protection de circuits électriques
DE19707769A1 (de) Einrichtung zum Schutz von elektrischen Schaltungen, insbesondere der Automobiltechnik, vor elektrostatischen Entladungen
DE3013911A1 (de) Schutzschaltung fuer zinkoxid-varistoren
DE3425296A1 (de) Vorrichtung zum schutz gegen ueberspannungen mit einer grobschutz- und einer feinschutzeinrichtung
DE3346753C2 (de) Überspannungsschutzgerät
DE1936899A1 (de) Baugruppentraeger fuer Steuer- bzw. Regelanlagen
DE2203497A1 (de) Fehlstromueberwachung
DE2342772C3 (de) Hochspannungshalbleitergleichrichter
DE102011115722A1 (de) Überspannungsschutzgerät
DE2355924A1 (de) Logische baueinheit zur verwendung in logischen schaltungen fuer industrielle anwendungszwecke
DE2753171A1 (de) Vorrichtung zum schutz elektrischer, insbesondere fernmeldetechnischer anlagen gegen ueberspannungsimpulse
DE3905427C2 (de) Überspannungsschutz für den Anschluß von Datenleitungen
DE3027469A1 (de) Blitzschutz von transportablen fernmelde-betriebsstellen
DE3218160C2 (de) Vorrichtung zum Schutz von Fernmeldeanlagen gegen Überspannungen
DE4005076A1 (de) Ueberspannungsschutzeinrichtung fuer daten verarbeitende geraete
EP0050091A1 (fr) Enroulement pour machines ou appareils électriques
DE8422793U1 (de) Vorrichtung zur Aufnahme wenigstens einer Baugruppe
DE102008050154A1 (de) Verdrahtungsplatte und Verfahren zum Verhindern eines Hochspannungsschadens

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19861003

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BBC BROWN BOVERI AG

17Q First examination report despatched

Effective date: 19880203

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19880813

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ARI, NIYAZI, DR.

Inventor name: HANSEN, DIETHARD, DR.