EP0925480B1 - 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 Download PDF

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Publication number
EP0925480B1
EP0925480B1 EP97944872A EP97944872A EP0925480B1 EP 0925480 B1 EP0925480 B1 EP 0925480B1 EP 97944872 A EP97944872 A EP 97944872A EP 97944872 A EP97944872 A EP 97944872A EP 0925480 B1 EP0925480 B1 EP 0925480B1
Authority
EP
European Patent Office
Prior art keywords
chip
metal body
ignition
fuse
firing element
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
EP97944872A
Other languages
German (de)
English (en)
Other versions
EP0925480A1 (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

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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
    • F42B3/12—Bridge initiators
    • 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

Definitions

  • the invention relates to an ignition / ignition element according to the preamble of the claim 1.
  • the ignition unit for triggering detonators is known from DE 38 83 266 T2.
  • the ignition unit consists of an electrically operated ignition or Melting head, a power source connected to the ignition head via a switching device is connected and an electronic unit.
  • the electronics unit has at least one Chip, made of a semiconductor material and provided with a microcircuit, on.
  • the chip carries an ignition head or an ignition bridge on its surface. The Ignition charge is applied directly to the ignition bridge.
  • the invention is based, an ignition / ignition element according to the task Generic preamble of claim 1, which due to its compact design can be used universally and in which when the ignition / Ignition element an uncontrolled blowing is avoided.
  • the principle of operation of the ignition / ignition element is as follows: when one is put on electrical voltage at the two pins, a current flows through the ignition / ignition element and the electrical energy is converted into thermal energy in the ignition bridge converted; the ignition bridge heats up. The one on the ignition bridge Ignition rate is initiated and by the implementation of the ignition rate or the gas pressure resulting from the ignition charges becomes a pressed bottom of the housing broken up. The hot gases and particles can then pass through this opening escape to ignite a downstream charge.
  • the metal body For permanently durable coupling of the plastic body to the metal body the metal body at its end facing the igniter reduced diameter with a circumferential groove. At least in this groove introduced two openings to the holes above the glass bushings.
  • the plastic body When the plastic body is molded or molded on, it engages around the Range of the smaller diameter of the metal body and penetrates through the groove and the openings in the holes and fill them above the glass bushings completely out. This ensures an optimal connection.
  • the housing is expediently sleeve-shaped, the metal body forms the lower base plate.
  • the housing advantageously includes the Plastic body and the metal body and is at the bottom of the metal body with this connected by a flare and a potting compound.
  • the chip rests on the metal body.
  • the chip has a conductive surface on its front side, onto which at least one resistance track is applied, which is laser cut in the conductive surface is so separated from it that there is at least one ignition bridge with the required resistance values. Laser cuts cause certain areas of the conductive surface are removed.
  • a spark plug material to be used, which initiates an exothermic reaction when ignited.
  • a spark plug material e.g. Magnesium or zirconium or an alloy thereof is suitable. This has the advantage that the ignition charge is no longer mechanically fixed on the ignition bridge must be pressed on, since the ignition bridge itself initiates an exothermic reaction executes.
  • One way to avoid unwanted triggering by interference pulses, High frequency radiation etc. consists of a capacitor parallel to the ignition circuit to switch.
  • the back of the chip is therefore advantageously metallized, so that the chip in connection with the conductive surface on the front Forms capacitor and this capacitor is connected in parallel to the ignition circuit.
  • other electronic components such as resistors, coils, capacitors can also be used etc. can also be arranged on the chip.
  • Fig. 1 shows the complete ignition / ignition element in section.
  • a sleeve-shaped Housing 1 is arranged as a base plate, a metal body 7, through which pins or pins 5 are guided as electrical supply lines.
  • the metal body 7 holes 8, in each of which a glass bushing 6 is inserted through the pins 5 are guided.
  • the glass bushing 6 insulates the pins 5 from one another the metal body 7.
  • the ignition bridge of the ignition / ignition element is on a chip 2 arranged, which rests on the metal body 7. Chip 2 will be detailed later described.
  • the pins or pins 5 are guided up to the chip 2 and protrude the chip 2 even something.
  • the pins 5 are connected to the soldering or bonding Chip 2 electrically connected.
  • a plastic body 9 is form-fitting with the metal body 7 connected and completely fills the peripheral wall of the housing 1.
  • the chip 2 in the A bottle neck-shaped indentation 16 is arranged inside the plastic body 9, the chip 2 being located at the lower end.
  • the ignition / ignition element or primer is a compact unit that is resistant to mechanical, thermal and climatic influences. That’s it Ignition / ignition element extremely reliable. Through the metallic sheathing the sleeve-shaped housing 1 and the subsequent application of the sealing compound 12, as well as through the dense glass bushing 6, is the ignition / ignition element absolutely tight!
  • the type area can be used to increase the mechanical strength against sentence breakouts or the primer 4 are additionally protected by a cover 18, if necessary.
  • the introduction of the ignition charges 4a, 4b can be carried out both in the dry and in the wet condition - with subsequent drying. Which type is chosen is of the sentence types and the associated economically meaningful contribution dependent.
  • Set types and set quantities depend on the respective application and can accordingly can be varied. It is also quite possible to use the ignition / ignition element can only be filled with one record type. This has the advantage that the handling costs are lower are than when introducing two types of sets 4a, 4b.
  • FIGS. 2a, b An essential feature is the positive connection of the plastic body 9 with the metal part 7. This is shown particularly well in FIGS. 2a, b, which the metal body 7 with inserted pins 5 in the glass bushing 6 shows.
  • the pins 5 are from the metal body 7 electrically insulated by the glass bushing 6 or the glass inserts and are so tight against moisture during storage and prevent the Gas when the ignition / ignition element is ignited.
  • the metal body 7 has an ignition charge on it (not shown in Fig. 2) directed end with a reduced diameter circumferential groove 10.
  • this groove 10 are at least two openings 11 to the Bores 8 introduced above the glass bushings 6. This allows the Plastic of the plastic body along the drawn-in wall 19 into the groove 10 and from there penetrate through the openings 11 into the bores 8 and fill them.
  • Fig. 1 shows the result, namely an extremely strong and durable 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 permanently connected electrically. This is e.g. a layer of tin on the pins 5 when the chip 2 is contacted by soldering, or a Gold layer on pins 5 when the chip connection is made by bonding becomes.
  • the chip 3 shows a plan view of the chip 2.
  • the chip 2 has a gold layer as the surface 13.
  • the semicircular bulges 20 serve to receive the pins 5, which are connected to the gold layer 13.
  • There is a resistance track across the surface 14 applied. This resistance path 14 is formed by laser cuts 15 so separated from the gold layer 13 that only one ignition bridge 3 remains.
  • the ignition bridge geometry can be cut variably with the laser cut 15 and thus a wide range can be manufactured inexpensively. In practice it is necessary, because it enables the realization of the required different electrical Functional data is possible. Other parameters to ensure functionality the required performance data are the layer thickness and the materials that are preferably applied with the sputtering process.
  • the resistance track 14 and thus the ignition bridge 3 is in a special embodiment made of an exothermic material, e.g. Magnesium or zirconium or an alloy of these substances.
  • One way to avoid unwanted triggering by means of interference pulses, High-frequency radiation etc. consists in designing the chip 2 as a capacitor, which is connected in parallel to the ignition circuit. This can be achieved that the back of the chip 2 is metallized accordingly.
  • Fig. 4 shows the unit 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 2 half holes 20 which are filled by the pins 5. This can both fix the two components during assembly as well as a subsequent secure electrical connection can be achieved.
  • the Connection can be by means of soldering, a bond connection or another suitable one Way.

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)

Claims (6)

  1. Elément d'amorçage/allumage comportant un boítier (1) à l'intérieur duquel pénètrent des conducteurs de liaison électriques, qui sont connectés à un pont d'amorçage (3) formé sur une puce (2), au-dessus de laquelle est disposée au moins une charge d'allumage (4a, 4b), dans lequel les conducteurs de liaison sont des broches (pins) (5) qui pénètrent dans le boítier (1) par des traversées en verre (6) et dans lequel un corps métallique (7) constitue le fond du boítier (1) et ledit corps métallique (7) comporte des trous (8) dans lesquels sont logées les traversées en verre (6), caractérisé en ce que le corps métallique (7) est lié par obstacle à un corps en matière plastique (9), qui couvre la paroi périphérique du boítier (1) et enveloppe les extrémités des broches (5) sortant des traversées en verre (6) et en ce que le corps métallique (7), à son extrémité tournée vers la charge d'allumage (4a, 4b), présente un diamètre réduit avec une gorge circulaire (10) et qu'au moins deux passages (11) communiquant avec les trous (8) au-dessus des traversées en verre (6) sont aménagés dans ladite gorge (10).
  2. Elément d'amorçage/allumage selon la revendication 1, caractérisé en ce que le boítier (1) entoure le corps en matière plastique (9) et le corps métallique (7) et, à l'extrémité inférieure du corps métallique (7), est lié à ce dernier par un collet (21) et une masse de scellage (12).
  3. Elément d'amorçage/allumage selon la revendication 1, caractérisé en ce que la puce (2) repose sur le corps métallique (7).
  4. Elément d'amorçage/allumage selon la revendication 1, caractérisé en ce que la puce (2) comporte une surface (13) conductrice, sur laquelle est formée au moins une piste formant résistance (14) qui est séparée de la surface conductrice (13) par des coupes (15) au laser, telles qu'au moins un pont d'allumage (3) présentant les résistances nécessaires soit formé.
  5. Elément d'amorçage/allumage selon la revendication 4, caractérisé en ce que la piste formant résistance (14) et avec elle le pont d'allumage (3) sont en un matériau à réaction exothermique, tel que par exemple du magnésium ou du zirconium ou un alliage de ces matériaux.
  6. Elément d'amorçage/allumage selon la revendication 4 ou 5, caractérisé en ce que la face arrière de la puce (2) est métallisée et qu'ainsi la puce (2), en liaison avec la surface (13) conductrice sur la face antérieure, forme un condensateur et que ledit condensateur est branché en parallèle avec le circuit d'allumage.
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 EP0925480A1 (fr) 1999-06-30
EP0925480B1 true 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
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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
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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
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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
RU2751184C1 (ru) * 2020-08-27 2021-07-12 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Воспламенительное устройство
CN114267651A (zh) * 2021-12-21 2022-04-01 北京智芯传感科技有限公司 一种预留装药室形式的桥膜式换能元封装结构

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Also Published As

Publication number Publication date
EP0925480A1 (fr) 1999-06-30
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
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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