EP0895646B1 - Element coupe-circuit pyrotechnique pour circuits - Google Patents

Element coupe-circuit pyrotechnique pour circuits Download PDF

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Publication number
EP0895646B1
EP0895646B1 EP97922911A EP97922911A EP0895646B1 EP 0895646 B1 EP0895646 B1 EP 0895646B1 EP 97922911 A EP97922911 A EP 97922911A EP 97922911 A EP97922911 A EP 97922911A EP 0895646 B1 EP0895646 B1 EP 0895646B1
Authority
EP
European Patent Office
Prior art keywords
severing
pyrotechnic
current
fuse element
conductor
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
EP97922911A
Other languages
German (de)
English (en)
Other versions
EP0895646A1 (fr
Inventor
Heinz Kern
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.)
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
Original Assignee
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
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 Dynamit Nobel AG, Dynamit Nobel GmbH Explosivstoff und Systemtechnik filed Critical Dynamit Nobel AG
Publication of EP0895646A1 publication Critical patent/EP0895646A1/fr
Application granted granted Critical
Publication of EP0895646B1 publication Critical patent/EP0895646B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/006—Opening by severing a conductor

Definitions

  • the invention relates to a pyrotechnic security element for circuits, such as from DE 42 11 079 A1 and DE 44 22 177 A1 known.
  • the pyrotechnic known in the prior art Securing elements according to DE 42 11 079 A1 and DE 44 22 177 A1 each have a current conductor, which means a disconnecting device in the event of overcurrents is severable. Cutting the conductor takes place by means of a separating or cutting element, the acts on a separating section of the conductor.
  • the Separating device can be operated pyrotechnically by a pyrotechnic charge is ignited, the the separating device thereby liberating combustion gases with velvet with separating or cutting element on the Separating section of the conductor to and through this move through.
  • the well-known pyrotechnic Fuse elements can each have a conductor cut through. With a multi-pole shutdown so several pyrotechnic security elements required, which is expensive.
  • the invention has for its object a pyrotechnic Create security element with which to simple way and at low manufacturing costs several Have the conductor cut.
  • the pyrotechnic security element multiple conductors, each with a separating section is provided, on which a separating element, which is, for example, a cutting element can act, acts. All separators are arranged on a common support part, which is due to the ignition of the pyrotechnic charge is movable to the conductor to the separating elements through the separating sections of the current conductors float.
  • the invention creates the possibility multiple electrical conductors through the action of one single pyrotechnic charge.
  • the current conductors simultaneously or temporally offset to cut.
  • the simultaneous cutting all current conductors are realized that the distance of the separating sections from each assigned separators is the same. Should they Current conductors are cut at different times, see above this is expediently achieved in that the Distances of the current conductors or the separating sections of the Current conductor from the respectively assigned separating elements are different sizes.
  • the Separating elements of the separating device as one piece Separation tool trained.
  • a one-piece Cutting tool can be simple constructive Way, for example, by a sloping or stepped front edge at the same height arranged conductor separation sections for a timed separation of the current conductors become.
  • the basic rule is that for the severing of several Conductor when using a single pyrotechnic Cargo must be designed sufficiently large, thus the carrier part carrying the separating elements kinetic energy necessary to cut through all Conductor can be awarded.
  • Fuse element as well as in relation to the Possibility of comparatively small-sized pyrotechnic It’s an advantage to use loads, if the current conductors in their separating sections are "similar to breaking points" are trained. It has to be done be ensured that the predetermined breaking point is only advantageous in terms of the desired severing of the conductor affects, however, electrically none brings significant disadvantages.
  • the current conductor in the area their separating sections are formed in one piece and have a cross-sectional area that is smaller than in the area outside of their separating sections.
  • the cross-sectional reduction is in the area of the separating sections expediently to choose such that it too there is no significant voltage drop.
  • the Cross-sectional reduction has an advantageous effect on the separating forces to be applied, which compared to the case where the conductors cover their entire Cross-sectional area must be separated, reduced are. It can also be used to cut several Current conductor, as in the pyrotechnic according to the invention Securing element provided, a comparatively small-sized pyrotechnic charge used become.
  • the separating sections of the current conductor as recesses in the outer surfaces are executed in the form of grooves.
  • These recesses are expedient in the separating elements facing side sections of the outer surfaces the conductor arranged. In this way serve the opposite flanks of the depressions as a guide for each of the separating sections assigned separators during their movements towards the separating sections and through the current conductors through it.
  • the separating elements in their starting positions from which as a result of the ignition of the pyrotechnic charge Cut the conductor towards and through these are movable through, if necessary immersed to different degrees in the wells are.

Landscapes

  • Fuses (AREA)

Claims (12)

  1. Elément coupe-circuit pyrotechnique pour circuits électriques comprenant
    plusieurs conducteurs (16; 16'), qui comportent chacun un tronçon de sectionnement (17, 17') au niveau duquel le conducteur (16; 16') concerné peut être sectionné et
    un dispositif de sectionnement (18, 18') actionné par voie pyrotechnique et comportant un élément formant support (20; 20') qui porte plusieurs éléments de sectionnement (32; 32') pour sectionner les tronçons de sectionnement (17; 17') des conducteurs (16; 16') et qui, suite à l'allumage d'une charge pyrotechnique (24; 24'), peut être déplacé en direction des conducteurs (16; 16'), un élément de sectionnement (32; 32') étant associé à chaque conducteur (16; 16').
  2. Elément coupe-circuit pyrotechnique selon la revendication 1, caractérisé par le fait que la distance des extrémités (34; 34') antérieures des éléments de sectionnement (32; 32') tournées vers les conducteurs par rapport aux tronçons de sectionnement (17; 17') des conducteurs (16; 16'), dans la position de départ de l'élément formant support (20; 20'), depuis laquelle celui-ci se déplace en direction des conducteurs (16; 16') à la suite de l'allumage de la charge pyrotechnique (24; 24'), est variable.
  3. Elément coupe-circuit pyrotechnique selon la revendication 1 ou 2, caractérisé par le fait que les éléments de sectionnement (32) sont conformés en outil de sectionnement (22) monobloc.
  4. Elément coupe-circuit pyrotechnique selon une des revendications 1 à 3, caractérisé par le fait que l'extrémité antérieure (34) de l'outil de sectionnement (22) tournée vers les tronçons de sectionnement (17) des conducteurs (16) s'étend en biais ou est étagée.
  5. Elément coupe-circuit pyrotechnique selon une des revendications 1 à 4, caractérisé par le fait que chaque conducteur (16; 16') est réalisé d'une pièce et présente, dans la région de son tronçon de sectionnement (17; 17'), une surface en section transversale qui est inférieure à la surface en section transversale du conducteur (16; 16') en dehors du tronçon de sectionnement (17; 17;) .
  6. Elément coupe-circuit pyrotechnique selon la revendication 5, caractérisé par le fait que le tronçon de sectionnement (17; 17') de chaque conducteur (16; 16') comporte une dépression (68) aménagée dans sa surface extérieure.
  7. Elément coupe-circuit pyrotechnique selon la revendication 6, caractérisé par le fait que la dépression (68) est aménagée dans la partie latérale (72) de la surface extérieure du conducteur (16; 16') associée à l'élément de sectionnement (32; 32').
  8. Elément coupe-circuit pyrotechnique selon la revendication 6 ou 7, caractérisé par le fait que chaque élément de sectionnement (32; 32'), dans la position de départ de l'élément formant support (20; 20'), depuis laquelle ledit élément peut être déplacé par allumage de la charge pyrotechnique (24; 24') aux fins de sectionner le conducteur (16; 16'), s'engage dans la dépression (68) du conducteur (16; 16') associée à l'élément de sectionnement.
  9. Elément coupe-circuit pyrotechnique selon une des revendications 1 à 8, caractérisé par le fait que chaque élément de sectionnement (32; 32') est formé d'un matériau électriquement isolant, en particulier de matière plastique.
  10. Elément coupe-circuit pyrotechnique selon une des revendications 1 à 9, caractérisé par le fait que la surface en section transversale de chaque conducteur (16; 16') au niveau du tronçon de sectionnement (17; 17') est inférieure à 50% de la surface en section transversale du conducteur (16; 16') en dehors du tronçon de sectionnement (17; 17').
  11. Elément coupe-circuit pyrotechnique selon la revendication 10, caractérisé par le fait que la surface en section transversale de chaque conducteur (16; 16') au niveau du tronçon de sectionnement (17; 17') est inférieure à 30% de la surface en section transversale du conducteur (16; 16') en dehors du tronçon de sectionnement (17; 17').
  12. Elément coupe-circuit pyrotechnique selon la revendication 10 ou 11, caractérisé par le fait que la surface en section transversale de chaque conducteur (16; 16') au niveau du tronçon de sectionnement (17; 17') représente 5% à 15%, en particulier 10%, de la surface en section transversale du conducteur (16; 16') en dehors du tronçon de sectionnement (17; 17').
EP97922911A 1996-04-27 1997-04-25 Element coupe-circuit pyrotechnique pour circuits Expired - Lifetime EP0895646B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19616994A DE19616994A1 (de) 1996-04-27 1996-04-27 Pyrotechnisches Sicherungselement für Stromkreise
DE19616994 1996-04-27
PCT/EP1997/002129 WO1997041583A1 (fr) 1996-04-27 1997-04-25 Element coupe-circuit pyrotechnique pour circuits

Publications (2)

Publication Number Publication Date
EP0895646A1 EP0895646A1 (fr) 1999-02-10
EP0895646B1 true EP0895646B1 (fr) 1999-12-01

Family

ID=7792707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97922911A Expired - Lifetime EP0895646B1 (fr) 1996-04-27 1997-04-25 Element coupe-circuit pyrotechnique pour circuits

Country Status (3)

Country Link
EP (1) EP0895646B1 (fr)
DE (2) DE19616994A1 (fr)
WO (1) WO1997041583A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9901932D0 (sv) * 1999-05-26 1999-05-26 Cassiopeja Ab Anordning för att skydda ett fordon mot brand
DE502004005631D1 (de) * 2003-02-04 2008-01-17 Delphi Tech Inc Pyromechanisches Trennelement
DE10337958A1 (de) * 2003-02-04 2004-08-12 Dynamit Nobel Ais Gmbh Automotive Ignition Systems Pyromechanisches Trennelement
DE102004010071A1 (de) * 2003-03-12 2004-09-23 Dynamit Nobel Ais Gmbh Automotive Ignition Systems Gehäuse und Stromleiterschiene für eine Batterieabschaltung
DE102004011863A1 (de) * 2003-04-03 2004-10-14 Dynamit Nobel Ais Gmbh Automotive Ignition Systems Gehäuse mit Stromleiterschiene für ein Trennsystem
EP1464544B1 (fr) 2003-04-03 2010-09-15 Delphi Technologies, Inc. Boîtier avec une barre conductrice pour un dispositif de sectionnement
EP1492139B1 (fr) * 2003-06-26 2016-01-06 Autoliv Development AB Ciseau pour element de séparation pyromecanique
DE102004016884A1 (de) * 2003-06-26 2005-01-13 Dynamit Nobel Ais Gmbh Automotive Ignition Systems Meißel für ein pyromechanisches Trennelement
EP2187417A1 (fr) * 2008-11-14 2010-05-19 Delphi Technologies, Inc. Disjoncteur pyromécanique
EP2704117A2 (fr) 2012-08-28 2014-03-05 Erich Matouschek Dispositif de déclenchement d'alarme et de sécurité contre l'effraction
DE102013009544A1 (de) 2013-06-04 2014-12-04 Erich Matouschek Alarmauslösende Einbruchsicherung
DE102012221664B4 (de) * 2012-09-25 2022-04-21 Te Connectivity Germany Gmbh Kurzschlussabschalter
FR3017240B1 (fr) * 2014-02-04 2016-01-29 Ncs Pyrotechnie Et Tech Sas Coupe-circuit pyrotechnique
DE102014106532B4 (de) 2014-05-09 2017-06-22 Erich Matouschek Vorrichtung zur Alarmauslösung und Einbruchsicherung
DE102014222230A1 (de) * 2014-10-30 2016-05-04 Leoni Bordnetz-Systeme Gmbh Pyrotechnischer Schutzschalter
FR3071658B1 (fr) * 2017-09-26 2019-10-18 Arianegroup Sas Dispositif pyrotechnique destine a ouvrir un premier circuit electrique et a fermer un deuxieme circuit electrique
FR3071659B1 (fr) * 2017-09-26 2019-10-11 Arianegroup Sas Dispositif de coupure pyrotechnique
FR3071657B1 (fr) * 2017-09-26 2020-11-13 Arianegroup Sas Dispositif de coupure pyrotechnique
EP3863036B1 (fr) * 2018-10-01 2024-05-01 Panasonic Intellectual Property Management Co., Ltd. Appareil de coupure de circuit et système de coupure de circuit
EP4033510A4 (fr) * 2020-12-11 2022-08-03 Xi' An Sinofuse Electric Co., Ltd. Fusible d'excitation multi-fracture combiné à une rupture et à une fusion mécaniques

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793501A (en) * 1972-12-04 1974-02-19 Ici America Inc Explosive switch
US4224487A (en) * 1978-02-23 1980-09-23 Simonsen Bent P Fast acting explosive circuit interrupter
US4417519A (en) * 1981-06-04 1983-11-29 Mcdonnell Douglas Corporation Explosive switch
JP2542704B2 (ja) * 1989-09-29 1996-10-09 工業技術院長 高速大電流スイッチ

Also Published As

Publication number Publication date
DE19616994A1 (de) 1997-10-30
WO1997041583A1 (fr) 1997-11-06
EP0895646A1 (fr) 1999-02-10
DE59700801D1 (de) 2000-01-05

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