EP3006889A1 - Amorce chimique dotee d'un declenchement electrique - Google Patents

Amorce chimique dotee d'un declenchement electrique Download PDF

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Publication number
EP3006889A1
EP3006889A1 EP15187173.8A EP15187173A EP3006889A1 EP 3006889 A1 EP3006889 A1 EP 3006889A1 EP 15187173 A EP15187173 A EP 15187173A EP 3006889 A1 EP3006889 A1 EP 3006889A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
chemical
detonator according
plug
chemical detonator
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
EP15187173.8A
Other languages
German (de)
English (en)
Other versions
EP3006889B1 (fr
Inventor
Joachim Sturm
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.)
Fr Sobbe GmbH
Original Assignee
Fr Sobbe GmbH
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 Fr Sobbe GmbH filed Critical Fr Sobbe GmbH
Priority to PL15187173T priority Critical patent/PL3006889T3/pl
Publication of EP3006889A1 publication Critical patent/EP3006889A1/fr
Application granted granted Critical
Publication of EP3006889B1 publication Critical patent/EP3006889B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • 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
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
    • 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
    • F42B3/11—Initiators therefor characterised by the material used, e.g. for initiator case or electric leads
    • 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
    • F42B3/125—Bridge initiators characterised by the configuration of the bridge initiator case
    • 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
    • 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
    • F42B3/182—Safety initiators resistant to premature firing by static electricity or stray currents having shunting means

Definitions

  • the invention relates to a chemical detonator with a sleeve made of plastic, which accommodates both an igniter connected to Zünddrähten, a Anzündsatz and a Brennsatz igniting pill as well as a pyrotechnic set and to the sleeve outlet through an end plug and the sleeve inlet out with the ignition wires on the primer is closed.
  • Such detonators are usually used as an initial for a detonating chain or the like.
  • the primer contains a priming charge and a fuel assembly, which cause electrically triggered that the upstream pyrotechnic sentence as an initial delay the downstream explosive devices responsive.
  • both the priming pill and the pyrotechnic set are arranged in a sleeve, wherein the primer is connected to ignition wires, which can be connected at the sleeve inlet with the priming pill.
  • This sleeve is usually made of polyamide, a slightly conductive plastic. Both during storage and above all during transport and in the field of use, electrostatic charges may occur in the area of such detonators.
  • the invention is therefore an object of the invention to provide a chemical igniter, the ESD (electrostatic discharge) is safe and thus the EC-type examination the BAM (Federal Institute for Materials Research and Testing) is sufficient.
  • the object is achieved according to the invention in that the sleeve surrounded by a tight-fitting aluminum sleeve and the primer is sealed with a potting against the funnel-shaped expiring inner wall of the sleeve.
  • a predetermined rollover point is provided in the region of the connection between the ignition wires and the primer.
  • the end plug is designed in such a way that it can not interfere with the pyrotechnic composition and the other parts of the igniter.
  • the closure plug has a predetermined breaking point. So if there is a corresponding build-up of pressure in the part of the sleeve containing the pyrotechnic composition, the end plug is certainly destroyed and the pyrotechnic composition can fulfill its function fully.
  • an insert is provided between end stopper and pyrotechnic set, which should expediently consist of absorbent paper.
  • This absorbent insert prevents even in unfavorable storage and influencing the chemical detonator that the pyrotechnic composition is affected for example by moisture.
  • the encapsulation according to the invention in the area of the priming pill can be introduced simply and safely and fully functional if an adhesive, preferably a 2K epoxy resin adhesive, is used as encapsulation.
  • an adhesive preferably a 2K epoxy resin adhesive
  • This epoxy resin adhesive is particularly suitable here, because it acts against the material of the sleeve and at the same time also the ignition pill so that an accidental destruction of the potting is completely excluded. This ensures that even with longer storage times and also stresses, the casting always fully retains its function.
  • the detonators have different energy content levels.
  • the invention provides that the end plug has a coloration characterizing the energy content level of the particular igniter used.
  • the advantage here is that the anyway required end plug is always easily recognizable and even with appropriate storage in boxes o. ⁇ ., The task or effect of the end plug is affected by this color in any way. It takes only a relatively small part of the igniter to obtain the color, wherein, as mentioned, the end plug as such is always easily identifiable.
  • the color should be chosen so that at the largest energy content level black is used to indicate hereby that a large pyrotechnic composition is used.
  • the ignition wires are made of copper-plated, tinned or galvanized iron or copper and have PVC insulation. With such executed Zünddrähten an influence of the igniter can be excluded from the outside.
  • the different energy content levels already mentioned are in particular characterized in that a different amount of pyrotechnic material is used.
  • the invention provides that the sleeve is formed extensible on a Aufsteckteil to larger energy content levels, sleeve and Aufsteckteil are bordered by a continuous, comprehensive aluminum sleeve.
  • the advantage here is that always the same sleeve can be used with their peculiarities, wherein the "content" of the sleeve the respective energy content levels can be changed accordingly.
  • the invention is characterized in particular by the fact that a chemical detonator is created, which fully satisfies the ESD requirement, so that it can no longer be endangered by such electrostatic charges. This is achieved by changing the outer shell of the sleeve, but also by a seal of the actual interior of the corresponding sleeve of the chemical detonator. It has been found that with this design of the chemical igniter ignitions by electrostatic charges have ceased to occur.
  • the sleeve From the funnel 22 of the sleeve 2, the sleeve extends with a smaller diameter to the sleeve inlet 11. In this area, openings 12 are provided for the ignition wires 3, 4, wherein the ignition wires 3, 4 are fixed on the pillar base 6 of the priming pill 5 via brackets 13 ,
  • a Sollüberschlagstelle 26 which has the task of providing potential equalization, if corresponding dangers exist.
  • an adhesive in particular a 2-component epoxy adhesive is used, which is compatible with both the material of the inner wall 23 of the sleeve 2, as well as with the material of Pillenfußes 6 and the desired sealing function provides.
  • the sleeve outlet 9 is a closure plug 10, which as well as the casting described 21 ensures that the stored in the space 15 pyrotechnic set 8 can be stored tightly and safely.
  • the stopper 10 has a predetermined breaking point 27, so that it is ensured that the response of the pyrotechnic set 8, the flame or the pressure escape to the outside and can be effective.
  • the stopper 10 is placed from above on the sleeve 2 and seals as described also well because it is secured by the sleeve 2 comprising the aluminum sleeve 20 with. The aluminum sleeve 20 is pulled up into the region of the actual lid of the end stopper 10.
  • This aluminum sleeve 20 comprises the entire sleeve 2 from the sleeve inlet 9 to the sleeve outlet 11.
  • the same also shows FIG. 2 , Downwards, only the ignition wires 3, 4 protrude beyond the sleeve 2. They are connected to the igniter or other suitable device.
  • the existing of copper or corresponding iron wire ignition wires 3, 4 are formed so that the corresponding Zünddrahtkern 30 is surrounded by a Zünddrahtmantel 31, wherein for this Zünddrahtmantel 31, a PVC insulation 32 is preferable.
  • a predetermined rollover point 26 is provided, which in FIG. 1 is clarified.
  • an insert 28 is provided, which consists of absorbent paper and is supported from below to the insertion piece 16 and ensures that this area is additionally sealed to the outside.
  • FIG. 3 shows a plan view of a sleeve 2, wherein the aluminum sleeve 20 is recognizable as an outer shell, which includes the actual sleeve 20 all around tight.
  • This sleeve 2 is closed by the sleeve outlet 9 through the end plug 10.
  • FIG. 4 shows a structure with respect. Ignition Pill 5 and the arrangement or management of the ignition wires 3, 4 forth identical structure as FIG. 1 , However, the room is 15 'opposite the in FIG. 1 shown significantly enlarged. This is achieved by a Aufsteckteil 34, which is placed from above on the sleeve inlet 9, which then carries the connecting plug 10 at the opposite end. Visible here are also the predetermined breaking point 27 and the insert 28.
  • the Aufsteckende 36 of the Aufsteckteils 34 extends so far into the "old" sleeve 2 in that the overall sleeve receives the necessary stability. This stability is further supported by the fact that both the Aufsteckteil 34 as well as the old sleeve 2 are bordered by a long continuous aluminum sleeve 35.
  • the chemical detonator 1 shown here is intended for an energy content level of 20,000 Ws.
  • FIG. 5 illustrates that through the continuous aluminum sleeve 35, a continuous protective jacket is created.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
EP15187173.8A 2014-10-08 2015-09-28 Amorce chimique dotee d'un declenchement electrique Active EP3006889B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15187173T PL3006889T3 (pl) 2014-10-08 2015-09-28 Zapalnik chemiczny z wyzwalaniem elektrycznym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014114566.6A DE102014114566A1 (de) 2014-10-08 2014-10-08 Chemischer Zünder mit elektrischer Auslösung

Publications (2)

Publication Number Publication Date
EP3006889A1 true EP3006889A1 (fr) 2016-04-13
EP3006889B1 EP3006889B1 (fr) 2017-06-14

Family

ID=54359712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15187173.8A Active EP3006889B1 (fr) 2014-10-08 2015-09-28 Amorce chimique dotee d'un declenchement electrique

Country Status (4)

Country Link
US (1) US9551556B2 (fr)
EP (1) EP3006889B1 (fr)
DE (1) DE102014114566A1 (fr)
PL (1) PL3006889T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2642570C1 (ru) * 2017-02-02 2018-01-25 Акционерное общество "Чебоксарское производственное объединение имени В.И. Чапаева" Воспламенитель
EP3771881B1 (fr) * 2019-07-29 2024-03-13 Fog GmbH Initiateur pyrotechnique destiné à initier un tuyau d'allumage et procédé d'initialisation d'un tuyau d'allumage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612942A1 (de) * 1976-02-18 1977-08-25 Gevelot S A Elektropyrotechnisches zuendmittel, das gegen elektrostatische entladungen geschuetzt ist
CA1295185C (fr) * 1986-02-21 1992-02-04 Wang Quicheng Detonateur a charge secondaire
DE4429175A1 (de) * 1993-08-25 1995-03-02 Ems Patvag Ag Gekapselter elektrischer Zünder mit integriertem Überspannungsableiter für einen Gasgenerator
EP1898175A1 (fr) * 2006-09-05 2008-03-12 Daicel Chemical Industries, Ltd. Appareil comportant un assemblage d'allumeur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366055A (en) * 1966-11-15 1968-01-30 Green Mansions Inc Semiconductive explosive igniter
DE4214033A1 (de) * 1992-04-29 1993-11-04 Dynamit Nobel Ag Elektrisches zuendelement mit soll-entladungsstrecke
US6164208A (en) * 1998-07-14 2000-12-26 Chung Shan Institute Of Science & Technology Igniter for vehicle airbag inflator
US6739264B1 (en) * 2002-11-04 2004-05-25 Key Safety Systems, Inc. Low cost ignition device for gas generators

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612942A1 (de) * 1976-02-18 1977-08-25 Gevelot S A Elektropyrotechnisches zuendmittel, das gegen elektrostatische entladungen geschuetzt ist
CA1295185C (fr) * 1986-02-21 1992-02-04 Wang Quicheng Detonateur a charge secondaire
DE4429175A1 (de) * 1993-08-25 1995-03-02 Ems Patvag Ag Gekapselter elektrischer Zünder mit integriertem Überspannungsableiter für einen Gasgenerator
EP1898175A1 (fr) * 2006-09-05 2008-03-12 Daicel Chemical Industries, Ltd. Appareil comportant un assemblage d'allumeur

Also Published As

Publication number Publication date
US20160102957A1 (en) 2016-04-14
US9551556B2 (en) 2017-01-24
EP3006889B1 (fr) 2017-06-14
PL3006889T3 (pl) 2017-12-29
DE102014114566A1 (de) 2016-04-14

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