EP0179201A2 - Couplage de sécurité pour amorce électrique - Google Patents

Couplage de sécurité pour amorce électrique Download PDF

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Publication number
EP0179201A2
EP0179201A2 EP85108803A EP85108803A EP0179201A2 EP 0179201 A2 EP0179201 A2 EP 0179201A2 EP 85108803 A EP85108803 A EP 85108803A EP 85108803 A EP85108803 A EP 85108803A EP 0179201 A2 EP0179201 A2 EP 0179201A2
Authority
EP
European Patent Office
Prior art keywords
ignition
current
ignition means
triggering
circuit
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
EP85108803A
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German (de)
English (en)
Other versions
EP0179201A3 (en
EP0179201B1 (fr
Inventor
Friedrich Dr. Heinemeyer
Winfried Nass
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
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of EP0179201A2 publication Critical patent/EP0179201A2/fr
Publication of EP0179201A3 publication Critical patent/EP0179201A3/de
Application granted granted Critical
Publication of EP0179201B1 publication Critical patent/EP0179201B1/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
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/40—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically

Definitions

  • the invention relates to a safety circuit of the type specified in the preamble of claim 1.
  • the invention is therefore based on the object of further increasing the safety of electrical ignition means with downstream detonable charges, such as detonator, transfer charge and actual explosive charge.
  • a safety circuit which is designed in accordance with the characterizing part of claim 1. This advantageously makes it possible to restore handling safety in the case of ignition means of the type mentioned, the intended triggering of which has not been successful due to interruptions in the electrical system, by establishing a defined short-circuit connection in parallel with the ignition means. Such interruptions are critical because they can be unstable so that after their disappearance an unwanted triggering by eg stray currents would be possible. The actual existence of the short final connection can be checked by measuring the ignition circuit.
  • this short-circuit connection e.g. Semiconductor resistors are used, which can be destroyed with a current of corresponding voltage so that a short circuit is formed.
  • the use of sintered tantalum capacitors in which targeted electrical breakdowns always result in a short circuit is particularly advantageous. The energy for generating this short-circuit connection is not so great that the entire component is destroyed.
  • an additional fuse can be arranged according to claim 3 in a supply line, which can be blown by means of a current that is greater than the maximum ignition current for 100% ignition.
  • a current that is greater than the maximum ignition current for 100% ignition.
  • the two aforementioned measures can also be combined with one another in such a way that - seen from the supply side of the ignition energy - the component producing the short-circuit connection is arranged in front of the additional fuse. With this circuit it is then possible to blow the fuse first and then generate a defined short circuit.
  • This fuse element is a short-circuit bridge, which is preferably designed as a wire soldered between the two supply lines, which can be selectively destroyed by means of a current of corresponding size and polarity due to a downstream blocking semiconductor element, preferably a blocking diode, without triggering the ignition means becomes.
  • a wire bridge e.g. a thin conductor track that burns or a low-resistance resistor that is interrupted can also be provided.
  • This short-circuit element represents an additional pre-safety device that is only canceled immediately before the intended triggering by means of a corresponding electrical current. Before this, it is possible to measure the ignition lines separately via this short-circuit element with regard to compliance with the required resistance data. After eliminating this pre-release, the entire ignition circuit can then be measured again in order to determine its perfect condition or a possible interruption or short circuit.
  • the safety circuit according to the invention is preferably integrated directly into the ignition device arrangement, but it can also be arranged close to it.
  • the safety circuit according to the invention is shown in the drawing in an exemplary embodiment and is explained in more detail below with reference to this.
  • the ignition means 1 with a downstream detonation-capable charge, not shown, can be connected via the feed lines 2 and 3 to an electrical power source, not shown.
  • the supply lines are shown interrupted at 2 1 and 3 'to indicate that the safety circuit explained in more detail below can also be arranged at a distance from the ignition means 1.
  • the component 4, preferably a sintered tantalum capacitor, which enables a targeted short circuit is arranged between the two supply lines 2 and 3.
  • the fuse 5 is also arranged, which enables a targeted interruption of the feed line 2 in the event of a short circuit.
  • the short-circuit bridge 7 parallel to the ignition means 1, the short-circuit bridge 7 is provided with a low-resistance fuse 7 ', which is symbolically indicated here.
  • the bridge 7 is preferably a wire bridge soldered directly between the two supply lines 2 and 3. Seen from the supply side of the ignition energy, the blocking diode 8 is finally arranged behind the short-circuit bridge 7 in the feed line 2, which is designed here so that it blocks against a negative current.
  • the resistor 9 can then be provided parallel to the ignition means 1 in order to achieve a current branch.
  • component 10 which can be a resistor or a choke coil, can also be provided in the feed line 2 in a manner known per se.
  • strong interference voltages can occur, for example, when blasting in the vicinity of transformer stations, radar systems, high-voltage lines or areas prone to lightning, where extremely high stray current is safe is required.
  • the short-circuit bridge 7 turns a sensitive ignition device into a highly insensitive one.
  • the functioning of the safety circuit is as follows:
  • the short-circuit bridge 7 is deliberately destroyed by a negative voltage applied to the lead 2, possibly after measuring the ignition lines beforehand, the blocking diode 8 preventing the ignition means 1 from being influenced. After removal of the short-circuit bridge 7, the entire ignition circuit can then optionally be measured. If it should be found that the resistance is infinite or at least significantly too large, a short circuit can be produced in a targeted manner in parallel with the ignition means 1 via the component 4 by means of a current of appropriate size.
  • the supply line 2 can be specifically interrupted by interrupting the fuse 5 by means of a positive voltage applied to the supply line 2, so that the handling safety is again ensured here. Possibly.
  • an additional defined short circuit can also be generated via the component 4 by means of a positive voltage on the feed line 2.
  • the intended triggering of the ignition means 1 with a downstream detonable charge takes place, if no faulty states of the ignition circuit have been determined, by applying a positive voltage of the appropriate size to the lead 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Automotive Seat Belt Assembly (AREA)
EP85108803A 1984-08-30 1985-07-13 Couplage de sécurité pour amorce électrique Expired - Lifetime EP0179201B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843431818 DE3431818A1 (de) 1984-08-30 1984-08-30 Sicherheitsschaltung fuer ein elektrisches zuendmittel
DE3431818 1984-08-30

Publications (3)

Publication Number Publication Date
EP0179201A2 true EP0179201A2 (fr) 1986-04-30
EP0179201A3 EP0179201A3 (en) 1990-03-07
EP0179201B1 EP0179201B1 (fr) 1992-03-04

Family

ID=6244222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108803A Expired - Lifetime EP0179201B1 (fr) 1984-08-30 1985-07-13 Couplage de sécurité pour amorce électrique

Country Status (3)

Country Link
US (1) US4769734A (fr)
EP (1) EP0179201B1 (fr)
DE (2) DE3431818A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637988A1 (de) * 1986-11-07 1988-05-11 Diehl Gmbh & Co Anzuendbauteil
CN103411486A (zh) * 2013-08-21 2013-11-27 南通迅翔自动化设备有限公司 一种数码电子雷管交直流耐压保护装置

Families Citing this family (24)

* 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
US4967665A (en) * 1989-07-24 1990-11-06 The United States Of America As Represented By The Secretary Of The Navy RF and DC desensitized electroexplosive device
DE4225330C1 (de) * 1992-07-31 1993-11-04 Bergwerksverband Gmbh Vorrichtung zum sequentiellen zuenden von elektrischen zuendern
US5367428A (en) * 1992-12-18 1994-11-22 Raymond Engineering Inc. Integrated safety discharge module
US6199484B1 (en) 1997-01-06 2001-03-13 The Ensign-Bickford Company Voltage-protected semiconductor bridge igniter elements
US5992326A (en) * 1997-01-06 1999-11-30 The Ensign-Bickford Company Voltage-protected semiconductor bridge igniter elements
US6729240B1 (en) * 2002-11-26 2004-05-04 The Boeing Company Ignition isolating interrupt circuit
US7286333B2 (en) * 2004-10-28 2007-10-23 The Boeing Company Switch card apparatus and methods
CA2598836C (fr) * 2005-03-18 2014-05-27 Orica Explosives Technology Pty Ltd Ensemble a detonateur sans fil et procedes d'abattage a l'explosif
AU2008226861B2 (en) * 2007-03-12 2012-08-16 Dyno Nobel Inc. Detonator ignition protection circuit
US12203350B2 (en) 2013-07-18 2025-01-21 DynaEnergetics Europe GmbH Detonator positioning device
US9605937B2 (en) 2013-08-26 2017-03-28 Dynaenergetics Gmbh & Co. Kg Perforating gun and detonator assembly
US10188990B2 (en) 2014-03-07 2019-01-29 Dynaenergetics Gmbh & Co. Kg Device and method for positioning a detonator within a perforating gun assembly
CN106468761B (zh) * 2016-09-22 2019-03-26 中国运载火箭技术研究院 一种飞行器火工品短路保护电路及状态切换方法
US9915513B1 (en) 2017-02-05 2018-03-13 Dynaenergetics Gmbh & Co. Kg Electronic ignition circuit and method for use
US11307011B2 (en) 2017-02-05 2022-04-19 DynaEnergetics Europe GmbH Electronic initiation simulator
WO2019007532A1 (fr) * 2017-07-07 2019-01-10 Siemens Aktiengesellschaft Dispositif de court-circuit électrique
US11661824B2 (en) 2018-05-31 2023-05-30 DynaEnergetics Europe GmbH Autonomous perforating drone
US11408279B2 (en) 2018-08-21 2022-08-09 DynaEnergetics Europe GmbH System and method for navigating a wellbore and determining location in a wellbore
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
WO2021116338A1 (fr) 2019-12-10 2021-06-17 DynaEnergetics Europe GmbH Système de perforation orienté
BR112021015329A2 (pt) * 2019-02-04 2021-10-05 Detnet South Africa (Pty) Ltd Bomba de reforço
WO2021185749A1 (fr) 2020-03-16 2021-09-23 DynaEnergetics Europe GmbH Adaptateur d'étanchéité en tandem avec matériau traceur intégré
US12546194B2 (en) 2023-08-04 2026-02-10 DynaEnergetics Europe GmbH Method and apparatus for automatic arming of perforating gun

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295447A (en) * 1965-04-06 1967-01-03 Atlas Chem Ind Electric match assembly and electric explosion initiators made therewith
DE2259378C3 (de) * 1972-12-05 1979-03-22 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Schutzschaltung für elektrische Zunder
US3793535A (en) * 1972-12-06 1974-02-19 Gen Electric Circuit for protecting semiconductors against transient voltages
GB1496652A (en) * 1973-09-27 1977-12-30 Edwards Ltd C Fire protection apparatus
US3934175A (en) * 1973-12-03 1976-01-20 General Semiconductor Industries, Inc. Power surge protection system
JPS5261212A (en) * 1975-11-13 1977-05-20 Toyota Motor Co Ltd Electric detonator
FR2341836A1 (fr) * 1976-02-18 1977-09-16 Gevelot Sa Artifice electropyrotechnique de securite vis-a-vis des decharges electrostatiques
SU630697A1 (ru) * 1977-06-20 1978-10-30 Предприятие П/Я Г-4377 Устройство дл защиты электроустановки от перенапр жени
DE2747163A1 (de) * 1977-10-20 1979-04-26 Dynamit Nobel Ag Elektrisches anzuendelement
JPS5722198A (en) * 1980-07-16 1982-02-05 Nippon Oils & Fats Co Ltd Electric detonator
DE3029491C2 (de) * 1980-08-02 1983-05-11 Diehl GmbH & Co, 8500 Nürnberg Verfahren zum dauernden Speisen einer Last in einem Geschoß
US4380958A (en) * 1980-12-17 1983-04-26 The United States Of America As Represented By The Secretary Of The Army Electrostatic safe electric match
DE3231143C2 (de) * 1982-08-21 1984-08-23 Robert Bosch Gmbh, 7000 Stuttgart Verpol- und Überspannungsschutzschaltung für elektronische Verbraucher
US4587588A (en) * 1984-03-02 1986-05-06 Perma Power Electronics, Inc. Power line transient surge suppressor
US4563720A (en) * 1984-04-17 1986-01-07 General Semiconductor Industries, Inc. Hybrid AC line transient suppressor
US4584622A (en) * 1984-07-09 1986-04-22 Gte Products Corporation Transient voltage surge suppressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3637988A1 (de) * 1986-11-07 1988-05-11 Diehl Gmbh & Co Anzuendbauteil
CN103411486A (zh) * 2013-08-21 2013-11-27 南通迅翔自动化设备有限公司 一种数码电子雷管交直流耐压保护装置

Also Published As

Publication number Publication date
US4769734A (en) 1988-09-06
EP0179201A3 (en) 1990-03-07
DE3585487D1 (de) 1992-04-09
EP0179201B1 (fr) 1992-03-04
DE3431818A1 (de) 1986-03-13

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