EP0925480A1 - Element d'amorcage/allumage avec un cavalier d'allumage installe sur une puce electronique - Google Patents

Element d'amorcage/allumage avec un cavalier d'allumage installe sur une puce electronique

Info

Publication number
EP0925480A1
EP0925480A1 EP97944872A EP97944872A EP0925480A1 EP 0925480 A1 EP0925480 A1 EP 0925480A1 EP 97944872 A EP97944872 A EP 97944872A EP 97944872 A EP97944872 A EP 97944872A EP 0925480 A1 EP0925480 A1 EP 0925480A1
Authority
EP
European Patent Office
Prior art keywords
ignition
chip
metal body
housing
element according
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
EP97944872A
Other languages
German (de)
English (en)
Other versions
EP0925480B1 (fr
Inventor
Uwe Albrecht
Uwe Brede
Anton Bretfeld
Heinz-Peter Cornelius
Josef Kraft
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 EP0925480A1 publication Critical patent/EP0925480A1/fr
Application granted granted Critical
Publication of EP0925480B1 publication Critical patent/EP0925480B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F42B3/12—Bridge initiators
    • F42B3/13—Bridge initiators with semiconductive bridge
    • 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
    • F42B3/12—Bridge initiators

Definitions

  • the invention relates to an ignition / ignition element according to the preamble of claim 1.
  • the ignition unit for triggering detonators is known from DE 38 83 266 T2.
  • the ignition unit consists of an electrically actuated ignition or melting head, a current source which is connected to the ignition head via a switching device and an electronics unit.
  • the electronics unit has at least one chip, made of a semiconductor material and provided with a microcircuit.
  • the chip carries an ignition head or an ignition bridge on its surface. The primer is applied directly to the ignition bridge.
  • the invention has for its object to provide an ignition / ignition element according to the preamble of claim 1, which due to its compact design can be used universally and in which an uncontrolled blow-off is avoided when the ignition / ignition element is ignited.
  • the connecting lines are pins which are led through a glass bushing into the housing
  • the ignition / ignition element works as follows: when an electrical voltage is applied to the two pins, a current flows through the ignition / ignition element and the electrical energy is converted into thermal energy in the ignition bridge; the ignition bridge heats up. The ignition charge applied to the ignition bridge is thereby initiated, and a pressed-out base of the housing is broken open by the gas pressure which arises during the implementation of the ignition charge or the ignition charges. The hot gases and particles can then escape through this opening in order to ignite a downstream charge.
  • the metal body advantageously has a reduced diameter with a circumferential groove at its end directed towards the ignition charge. At least two openings to the bores above the glass bushings are made in this groove.
  • the plastic body When the plastic body is molded or molded onto it, it engages around the area of the smaller diameter of the metal body and penetrates into the bores via the groove and the openings and completely fills them above the glass bushings. This ensures an optimal connection.
  • the housing is expediently sleeve-shaped, the metal body forming the lower base plate.
  • the housing advantageously comprises the plastic body and the metal body and is connected at the lower end of the metal body to this via a flange and a potting compound.
  • the chip rests on the metal body.
  • the chip has on its front side a conductive surface on which at least one resistance track is applied, which is separated from the conductive surface by laser cuts in such a way that there is at least one ignition bridge with the required resistance values. Laser cuts cause certain areas of the conductive surface to be removed.
  • a ignition bridge material that initiates an exothermic reaction when ignited. Magnesium or zirconium or an alloy thereof is suitable for this. This has the advantage that the ignition charge no longer has to be mechanically firmly pressed onto the ignition bridge, since the ignition bridge itself performs an exothermic reaction after initiation.
  • One way to avoid unwanted triggering by interference pulses, high-frequency radiation, etc. is to connect a capacitor in parallel with the ignition circuit.
  • the back of the chip is therefore advantageously metallized, so that the chip forms a capacitor in connection with the conductive surface on the front and this capacitor is connected in parallel with the ignition circuit.
  • other electronic components such as resistors, coils, capacitors, etc. can also be arranged on the chip.
  • FIG. 2 shows a metal body with inserted pins in section (FIG. 2a) and in a view rotated by 90 ° to FIG. 2a (FIG. 2b),
  • Fig. 3 is a plan view of a chip
  • Fig. 4 shows a metal body with an attached chip in section (Fig. 4a) and in plan view from above (Fig. 4b).
  • Fig. 1 shows the complete ignition / ignition element in section.
  • a metal body 7 is arranged as the base plate, through which pins 5 are guided as electrical feed lines.
  • the metal body 7 holes 8, in each of which a glass bushing 6 is embedded, through which the pins 5 are guided.
  • the glass bushing 6 insulates the pins 5 from the metal body 7.
  • the ignition bridge of the ignition / ignition element is arranged on a chip 2 which rests on the metal body 7. The chip 2 will be described in detail later.
  • the pins 5 are led up to the chip 2 and even protrude slightly beyond the chip 2.
  • the pins 5 are electrically connected to the chip 2 via soldering or bonding.
  • a plastic body 9 is positively connected to the metal body 7 and completely fills the peripheral wall of the housing 1.
  • a bottle neck-shaped indentation 16 is arranged in the interior of the plastic body 9, the chip 2 being located at the lower end.
  • An ignition charge 4a and a second ignition charge 4b are applied to the chip 2 or the ignition bridge.
  • the housing 1 is connected to the metal body 7 via a flange 21 and a potting compound 12 on the lower base plate.
  • the ignition / ignition element or primer is a compact unit that is resistant to mechanical, thermal and climatic influences. This makes the ignition / ignition element extremely reliable.
  • the ignition / ignition element is absolutely tight due to the metallic sheathing by means of the sleeve-shaped housing 1 and the subsequent application of the potting compound 12, as well as the sealed glass bushing 6!
  • the type area or the primer 4 can be additionally protected by a cover 18 if necessary.
  • the primers 4a, 4b can be introduced both in the dry and in the moist state, with subsequent drying. Which type is selected depends on the record types and the associated economically meaningful contribution. Set types and sets depend on the respective application and can be varied accordingly. It is also entirely possible to fill the ignition / ignition element with only one set type. This has the advantage that the handling costs are lower than when two sets of types 4a, 4b are introduced.
  • FIGS. 1 An essential feature is the positive connection of the plastic body 9 to the metal part 7. This is shown particularly well by FIGS.
  • the pins 5 are electrically insulated from the metal body 7 through the glass bushing 6 or the glass inserts and are thus tight against moisture during storage and prevent the gas from escaping when the ignition / ignition element is ignited.
  • the metal body 7 has a reduced diameter at its end facing the igniter (not shown in FIG. 2) with a circumferential groove 10. At least two openings 11 to the bores 8 above the glass bushings 6 are made in this groove 10. As a result, the plastic of the plastic body can penetrate into the groove 10 along the drawn-in wall 19 and from there through the openings 11 into the bores 8 and fill them. 1 shows the result, namely an extremely strong and permanent and therefore tight coupling of the plastic body 9 to the metal body 7.
  • the top of the metal part 7 and the pins 5 should be designed so that the chip 2 can be electrically connected permanently. This is e.g. a tin layer on the pins 5 when the chip 2 is contacted by soldering, or a gold layer on the pins 5 when the chip connection is made by bonding.
  • the chip 3 shows a top view of the chip 2.
  • the chip 2 has a gold layer 13 as the surface.
  • the semicircular bulges 20 serve to receive the pins 5, which are connected to the gold layer 13.
  • Across the surface is a wi- derstandsbahn 14 applied. This resistance path 14 is separated from the gold layer 13 by laser cuts 15 such that only one ignition bridge 3 remains.
  • the ignition bridge geometry can be cut variably and thus a broad spectrum can be manufactured inexpensively. In practice, this is necessary because it enables the required different electrical functional data to be realized. Further parameters for ensuring the functionality in the required performance data are the layer thickness and the materials, which are preferably applied using the sputtering method.
  • the resistance track 14 and thus the ignition bridge 3 consists in a special embodiment of an exothermic material, such as Magnesium or zirconium or an alloy of these substances.
  • One way of avoiding the unwanted triggering by means of interference pulses, high-frequency radiation, etc. is to design the chip 2 as a capacitor, which is connected in parallel to the ignition circuit. This can be achieved in that the back of the chip 2 is metallized accordingly.
  • Fig. 4 shows the assembly metal body 7 with inserted pins 5 and connected chip 2 in section (Fig. 4a) and in plan view from above (Fig. 4b).
  • the chip 2 is electrically connected to the pins 5 by means of soldering 21.
  • the chip 2 lies flat on the surface of the metal body 7 and has two half bores 20 which are filled by the pins 5. A fixation of the two components during assembly as well as a subsequent secure electrical connection can thus be achieved.
  • the connection can be made by means of soldering, a bond connection or in another suitable manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Fuses (AREA)
  • Packaging Frangible Articles (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Control Of Combustion (AREA)

Abstract

La présente invention concerne un élément d'allumage doté d'un boîtier (1) dans lequel passent des lignes de raccordement électrique reliées à un cavalier d'allumage (3) monté sur une puce électronique (2) pourvue d'au moins un bloc d'allumage (4a, 4b). Pour permettre l'utilisation universelle de l'invention et éviter une décharge involontaire, il est proposé de concevoir les lignes de raccordement sous forme de pointes (pins) amenées dans le boîtier (1) par une traversée de verre (6), que le fond du boîtier (1) soit un corps métallique (7) présentant des alésages (8) dans lesquels pénètrent les traversées de verre (6), et que le corps métallique soit en liaison de forme avec le corps de plastique (9) qui recouvre la paroi périphérique du boîtier (1) et enveloppe les extrémités des pointes (5) ressortant de la traversée de verre (6).
EP97944872A 1996-09-14 1997-09-11 Element d'amorcage/allumage avec un cavalier d'allumage installe sur une puce electronique Expired - Lifetime EP0925480B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19637587A DE19637587A1 (de) 1996-09-14 1996-09-14 Zünd-/Anzündelement mit einer auf einem Chip angeordneten Zündbrücke
DE19637587 1996-09-14
PCT/EP1997/004976 WO1998011400A1 (fr) 1996-09-14 1997-09-11 Element d'amorçage/allumage avec un cavalier d'allumage installe sur une puce electronique

Publications (2)

Publication Number Publication Date
EP0925480A1 true EP0925480A1 (fr) 1999-06-30
EP0925480B1 EP0925480B1 (fr) 2001-12-05

Family

ID=7805701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97944872A Expired - Lifetime EP0925480B1 (fr) 1996-09-14 1997-09-11 Element d'amorcage/allumage avec un cavalier d'allumage installe sur une puce electronique

Country Status (15)

Country Link
US (1) US6262875B1 (fr)
EP (1) EP0925480B1 (fr)
JP (1) JP4030130B2 (fr)
KR (1) KR100614121B1 (fr)
CN (1) CN1080410C (fr)
AT (1) ATE210271T1 (fr)
BR (1) BR9712821A (fr)
CA (1) CA2265585A1 (fr)
CZ (1) CZ298386B6 (fr)
DE (2) DE19637587A1 (fr)
ES (1) ES2165093T3 (fr)
PL (1) PL183951B1 (fr)
RU (1) RU2196292C2 (fr)
TR (1) TR199900564T2 (fr)
WO (1) WO1998011400A1 (fr)

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US20060208474A1 (en) * 2003-12-24 2006-09-21 Nippon Kayaku Kabushiki Kaisha Gas producer
CN100389299C (zh) * 2005-10-21 2008-05-21 贵州久联民爆器材发展股份有限公司 半导体电雷管
JP5020571B2 (ja) * 2006-08-29 2012-09-05 株式会社ダイセル 電気式点火器の製造方法
JP4914193B2 (ja) * 2006-12-01 2012-04-11 日本化薬株式会社 スクイブならびにエアバッグ用ガス発生装置およびシートベルトプリテンショナー用ガス発生装置
DE102007017679A1 (de) 2007-01-11 2008-07-17 Rheinmetall Waffe Munition Gmbh Anzündmittel
RU2347900C1 (ru) * 2008-01-29 2009-02-27 Общество с ограниченной ответственностью "Центр внедрения технологий" Способ вскрытия продуктивных пластов
JP5364354B2 (ja) * 2008-12-08 2013-12-11 日本工機株式会社 携行型拘束網展開装置
CN101487680B (zh) * 2009-02-23 2012-11-21 北京铱钵隆芯科技有限责任公司 点火头
RU2401412C1 (ru) * 2009-04-07 2010-10-10 Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики" (ФГУП "РФЯЦ - ВНИИЭФ") Электровоспламенительное устройство с защитой от разрядов статического электричества
RU2400693C1 (ru) * 2009-04-07 2010-09-27 Федеральное государственное унитарное предприятие "Российский Федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики" - ФГУП "РФЯЦ-ВНИИЭФ" Электровоспламенительное устройство
CN101666595B (zh) * 2009-09-08 2012-08-29 北京维深数码科技有限公司 一种数码电子雷管控制芯片
CN103512439A (zh) * 2012-06-20 2014-01-15 新疆创安达电子科技发展有限公司 一种电子雷管桥丝单体及其生产方法
JP5958915B2 (ja) * 2013-03-29 2016-08-02 昭和金属工業株式会社 点火ユニットの製造方法
DE102014016469B4 (de) 2014-11-06 2016-05-25 Diehl Bgt Defence Gmbh & Co. Kg Zündvorrichtung zum Zünden einer Treibladung
BR112017028155B1 (pt) * 2015-06-26 2023-05-02 Nederlandse Organisatie Voor Toegepast -Natuurwetenschappelijk Onderzoek Tno Dispositivo iniciador de circuito integrado
CN108489347B (zh) * 2018-01-18 2019-12-27 融硅思创(北京)科技有限公司 一种多芯片结构的数码电子雷管芯片
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Also Published As

Publication number Publication date
JP4030130B2 (ja) 2008-01-09
JP2001500602A (ja) 2001-01-16
CA2265585A1 (fr) 1998-03-19
CN1080410C (zh) 2002-03-06
BR9712821A (pt) 1999-11-23
RU2196292C2 (ru) 2003-01-10
DE19637587A1 (de) 1998-03-19
DE59705692D1 (de) 2002-01-17
PL332160A1 (en) 1999-08-30
EP0925480B1 (fr) 2001-12-05
WO1998011400A1 (fr) 1998-03-19
CZ9900868A3 (en) 2001-06-13
KR100614121B1 (ko) 2006-08-22
CN1230252A (zh) 1999-09-29
CZ298386B6 (cs) 2007-09-19
PL183951B1 (pl) 2002-08-30
ATE210271T1 (de) 2001-12-15
ES2165093T3 (es) 2002-03-01
US6262875B1 (en) 2001-07-17
KR20000036083A (ko) 2000-06-26
TR199900564T2 (xx) 1999-06-21

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