EP0266783A1 - Initiateur pyrotechnique - Google Patents

Initiateur pyrotechnique Download PDF

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Publication number
EP0266783A1
EP0266783A1 EP87116358A EP87116358A EP0266783A1 EP 0266783 A1 EP0266783 A1 EP 0266783A1 EP 87116358 A EP87116358 A EP 87116358A EP 87116358 A EP87116358 A EP 87116358A EP 0266783 A1 EP0266783 A1 EP 0266783A1
Authority
EP
European Patent Office
Prior art keywords
capacitor
ignition
base body
bridge
insulating body
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
EP87116358A
Other languages
German (de)
English (en)
Other versions
EP0266783B1 (fr
Inventor
Kurt Fiedler
Bernhard Kratz
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.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6313403&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0266783(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0266783A1 publication Critical patent/EP0266783A1/fr
Application granted granted Critical
Publication of EP0266783B1 publication Critical patent/EP0266783B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/18—Safety initiators resistant to premature firing by static electricity or stray currents
    • F42B3/188—Safety initiators resistant to premature firing by static electricity or stray currents having radio-frequency filters, e.g. containing ferrite cores or inductances

Definitions

  • the invention relates to an ignition component with a base body, in which electrical connecting wires are held and which carries an insulating body, on which an ignition bridge is arranged, which lies on a capacitance-forming electrodes connected to the connecting wires.
  • Such ignition components should be protected against high-frequency electromagnetic interference so that the ignition component cannot be triggered by interference voltages.
  • Such an ignition component is described in DE-OS 35 02 526.
  • an insulating plate is inserted into the base body, which carries electrodes on both sides.
  • One electrode is provided with a meandering opening, whereby a capacitance is formed.
  • Dielectric properties of the insulating body itself are not evaluated here for the capacitance formation.
  • the width of the opening must be very small. This is manufacturing technology and unfavorable in operation, since there is a slight risk that the opening will be bridged.
  • the object of the invention is to propose an ignition component of the type mentioned at the outset, the capacitance of which is as close as possible to both ends of the ignition bridge and is simple in construction and not susceptible to faults.
  • the above object is achieved in the case of an ignition component of the type mentioned at the outset in that the base body and / or the insulating body is provided with a capacitor coating on each of its two opposite surfaces, and in that the base body or the insulating body is made of ceramic, so that it itself together forms the capacitance with the capacitor coatings.
  • the base body or the insulating body not only form the carrier for the ignition bridge, but also a capacitor.
  • the size of the base body or insulating body itself is available for dimensioning the capacity.
  • the two ends of the ignition bridge are extremely close to the capacitor linings. This is advantageous since there are hardly any line pieces between the ignition bridge and the capacitor that can receive interference radiation.
  • An ignition pill has a base body (1) on which an insulating body (2) is arranged. Lead wires (3, 4) are guided through the base body (1) and are connected at solder points (5, 6) to an ignition wire (7) which is carried by the insulating body (2).
  • the ignition wire (7) and the insulating body (2) are embedded in ignition kits (8, 9) which surround a protective lacquer layer (10).
  • ignition kits (8, 9) which surround a protective lacquer layer (10).
  • the primers are not shown in detail.
  • the disk-shaped base body (1) is not made of glass, but from a ceramic with suitable dielectric properties.
  • An electrically conductive capacitor coating (11) is applied to the underside of the base body (1).
  • a capacitor covering (12) is provided on the opposite top.
  • the insulating body (2) is applied to this.
  • the insulating body (2) carries the ignition bridge (7), which is an ignition wire or is applied to the insulating body (2) from resistance paste.
  • the connecting wires (3, 4) protrude just above the ignition bridge (7) (see FIG. 2).
  • the connecting wire (3) is electrically conductively connected to the capacitor coating (11) on the underside and one end of the ignition bridge (7). It is electrically insulated from the capacitor covering (12).
  • the connecting wire (4) is electrically conductively connected to the ignition bridge (7) and the capacitor coating (12) on the upper side; however insulated from the capacitor coating (11).
  • the base body (1) thus not only forms the stable leadthrough for the connecting wires (3, 4) and the holder for the insulating body (2) with the ignition bridge (7), but at the same time an electrical capacitor due to its capacitor coatings (11, 12), which is electrically connected in parallel with the ignition bridge (7).
  • the ignition bridge (7) Since the ignition bridge (7) is connected directly to the connecting wires (3, 4) to which the capacitor linings (11, 12) are also connected directly, on the one hand only a few connection points are necessary. On the other hand, the capacitor is spatially extremely close to the ignition bridge (7), so that interference voltage radiation between the capacitor linings (11, 12) and the ignition bridge (7) cannot take place.
  • a plurality of capacitor coatings (11, 12) are provided to increase the capacitance in the base body (1), as a result of which a stacked capacitor is created.
  • a desired capacity can be achieved by cascading a corresponding number of individual elements.
  • tubes made of a ferrite material can be attached to the connecting wires (3, 4) (see FIGS. 13 and 14).
  • a commercially available single-chip capacitor component (13) is provided instead of the insulating body (2) and the capacitor coverings (11, 12) of the base body (1).
  • the ignition wire (7) runs between its capacitor coatings (11, 12).
  • a resistance paste can also be applied to the component (13) as the ignition bridge.
  • the component (13) is arranged lying on the base body (1). It is sufficient here in each case a soldered or welded connection to connect the connecting wire (3) to the capacitor covering (11) and one end of the ignition bridge (7) and to connect the connecting wire (4) to the capacitor covering (12) and the other end of the Ignition bridge (7).
  • the component (13) is arranged standing on the base body (1).
  • the component (13) can be glued to the base body (1).
  • the ignition bridge (7) extends on one of the large surfaces of the component (13), it being laid in a Z-shape according to FIG.
  • the ignition bridge (7) runs on the end face of the component (13) facing away from the base body (1).
  • the ignition bridge (7) extends from one side over the end edge to the other side of the component (13).
  • the capacitor is also used in this version arranged directly at the ignition bridge (7).
  • the capacitor component (13) also takes on the function of the insulating body (2). It is also advantageous here that a commercially available capacitor component (13) can be used to manufacture the ignition component.
  • tubes (14, 15) made of a ferrite material are pushed onto the connecting wires (3, 4). This creates an L-C-L protective circuit for the ignition bridge (7).
  • the equivalent circuit diagram of this protective circuit is shown in FIG. 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP87116358A 1986-11-07 1987-11-06 Initiateur pyrotechnique Expired - Lifetime EP0266783B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863637988 DE3637988A1 (de) 1986-11-07 1986-11-07 Anzuendbauteil
DE3637988 1986-11-07

Publications (2)

Publication Number Publication Date
EP0266783A1 true EP0266783A1 (fr) 1988-05-11
EP0266783B1 EP0266783B1 (fr) 1990-04-18

Family

ID=6313403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87116358A Expired - Lifetime EP0266783B1 (fr) 1986-11-07 1987-11-06 Initiateur pyrotechnique

Country Status (2)

Country Link
EP (1) EP0266783B1 (fr)
DE (2) DE3637988A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0648997A1 (fr) * 1993-10-13 1995-04-19 Thomson Brandt Armements Dispositif de mise à feu à haute énergie
EP0863379A1 (fr) * 1997-03-07 1998-09-09 Livbag S.N.C. Initiateur électro-pyrotechnique constitué autour d'un circuit imprimé complet

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638084A1 (de) * 1986-11-07 1988-05-19 Diehl Gmbh & Co Mehrfach-steckverbindung fuer elektrisch ansteuerbare zuendmittel
DE3812958A1 (de) * 1988-04-19 1989-11-02 Diehl Gmbh & Co Elektrisches anzuendmittel
AT522U1 (de) * 1994-03-23 1995-12-27 Hirtenberger Ag Antriebsvorrichtung fuer rueckhaltesysteme in kraftfahrzeugen
DE19637587A1 (de) * 1996-09-14 1998-03-19 Dynamit Nobel Ag Zünd-/Anzündelement mit einer auf einem Chip angeordneten Zündbrücke

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818020A (en) * 1955-11-17 1957-12-31 Glenn A Burklund Safeguarded electric firing initiating devices
US3324793A (en) * 1965-04-29 1967-06-13 Detoronics Corp Transmission line type surge attenuator for transient voltage and current impulses
US3449999A (en) * 1967-04-24 1969-06-17 Myron A Coler Method of making an electrical initiator
US3524408A (en) * 1968-01-22 1970-08-18 Conax Corp Electrostatic discharge dissipator for a heater bridgewire circuit of an electro-explosive device
EP0029671A1 (fr) * 1979-11-20 1981-06-03 Ici Americas Inc. Elément de sécurité électrostatique pour amorce-détonateur électrique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE431486B (sv) * 1979-09-03 1984-02-06 Bofors Ab Elektrisk tendare
US4422381A (en) * 1979-11-20 1983-12-27 Ici Americas Inc. Igniter with static discharge element and ferrite sleeve
DE3204279A1 (de) * 1982-02-08 1983-08-18 FPE-Cornell-Dubilier Electric GmbH, 8025 Unterhaching Elektrisches entstoerfilter
DE3502526A1 (de) * 1984-01-31 1985-08-01 Dynamit Nobel Ag, 5210 Troisdorf Elektrisches anzuendelement
DE3431818A1 (de) * 1984-08-30 1986-03-13 Dynamit Nobel Ag, 5210 Troisdorf Sicherheitsschaltung fuer ein elektrisches zuendmittel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818020A (en) * 1955-11-17 1957-12-31 Glenn A Burklund Safeguarded electric firing initiating devices
US3324793A (en) * 1965-04-29 1967-06-13 Detoronics Corp Transmission line type surge attenuator for transient voltage and current impulses
US3449999A (en) * 1967-04-24 1969-06-17 Myron A Coler Method of making an electrical initiator
US3524408A (en) * 1968-01-22 1970-08-18 Conax Corp Electrostatic discharge dissipator for a heater bridgewire circuit of an electro-explosive device
EP0029671A1 (fr) * 1979-11-20 1981-06-03 Ici Americas Inc. Elément de sécurité électrostatique pour amorce-détonateur électrique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0648997A1 (fr) * 1993-10-13 1995-04-19 Thomson Brandt Armements Dispositif de mise à feu à haute énergie
FR2711237A1 (fr) * 1993-10-13 1995-04-21 Thomson Brandt Armements Dispositif de mise à feu à haute énergie.
EP0863379A1 (fr) * 1997-03-07 1998-09-09 Livbag S.N.C. Initiateur électro-pyrotechnique constitué autour d'un circuit imprimé complet
FR2760525A1 (fr) * 1997-03-07 1998-09-11 Livbag Snc Initiateur electro-pyrotechnique constitue autour d'un circuit imprime complet

Also Published As

Publication number Publication date
DE3637988A1 (de) 1988-05-11
DE3762375D1 (de) 1990-05-23
EP0266783B1 (fr) 1990-04-18

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