EP3030857A1 - Electrical igniting cap for small caliber munition - Google Patents

Electrical igniting cap for small caliber munition

Info

Publication number
EP3030857A1
EP3030857A1 EP14750181.1A EP14750181A EP3030857A1 EP 3030857 A1 EP3030857 A1 EP 3030857A1 EP 14750181 A EP14750181 A EP 14750181A EP 3030857 A1 EP3030857 A1 EP 3030857A1
Authority
EP
European Patent Office
Prior art keywords
cup
pole piece
pole
resistance bridge
anzündhütchen
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
EP14750181.1A
Other languages
German (de)
French (fr)
Other versions
EP3030857B1 (en
Inventor
Andreas Winter
Wolfgang Mosig
Ulrich Bley
Aleksej Hoschenko
Martin Liebl
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.)
RWS GmbH
Original Assignee
RUAG Ammotec 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 RUAG Ammotec GmbH filed Critical RUAG Ammotec GmbH
Priority to PL14750181T priority Critical patent/PL3030857T3/en
Priority to RS20180527A priority patent/RS57301B1/en
Publication of EP3030857A1 publication Critical patent/EP3030857A1/en
Application granted granted Critical
Publication of EP3030857B1 publication Critical patent/EP3030857B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F42B3/12—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
    • F42B3/124—Bridge initiators characterised by the configuration or material of the 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
    • F42B3/128—Bridge initiators characterised by the composition of the pyrotechnic material
    • 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
    • F42C19/12—Primers; Detonators electric

Definitions

  • the invention relates to a primer cap for small-caliber ammunition with an outer metal cup in which a priming mixture is arranged, which after
  • Initiation generates hot combustion gases.
  • a preferred use should be specified.
  • igniter mixture abbreviated to AZM
  • the invention has for its object to improve a primer according to the preamble of claim 1 in terms of a more versatile control of the initiating tion process in the weapon.
  • the primer must be constructed so that it contains the same size components that can ensure the conversion of electrical energy into a chemical reaction of the igniter mixture (AZM). This is the Heat is used, which arises when an ohmic resistance is traversed by electric current.
  • the outer dimension of the primer corresponds to that of a classic mechanical primer (ANZDH), so that it can continue to be used in standard sleeves for small-caliber ammunition.
  • ANZDH classic mechanical primer
  • a separation of the two electrical poles, which is made possible by introducing an electrically conductive pole piece in the ANZDH is required.
  • Characterized in that in the primer additionally an electrically initiatable resistance bridge and an electrically conductive pole piece are arranged, wherein the first pole of the resistance bridge with the cup and the second pole is connected to the pole piece which protrudes from the cup and is electrically insulated from this, is a versatile control of the initiation process in the weapon possible.
  • a through bore is introduced in the bottom of the cup and has the pole piece on a pin which projects into the bore, wherein between the pole piece and the cup an insulation is arranged.
  • the insulation is elastic and does not break under pressure load.
  • the insulation consists of vulcanized fiber. Due to the insulation, the pole piece is electrically separated from the outer cup of the primer cap. In addition, the insulation ensures gas-tightness during firing, as it is slightly compressed by the rising pressure and thus into any possibly present ones
  • the pole piece on its end facing away from the bore on a projection. On this projection is a small plate, which will be described below.
  • a plate made of an electrically insulating material eg FR4 or PVC
  • PVC electrically insulating material
  • a plate made of an electrically insulating material with an upper side and a pole piece facing bottom and arranged with a hole and the resistance bridge is arranged on top, wherein the bottom and the hole metallized and are electrically connected to each other and on the edge of the upper side a metallic edge contact is arranged, which is connected to the first pole of the resistance bridge and the second pole of the resistance bridge is connected to the metallization of the hole and the plate rests on the electrically conductive pole piece.
  • the edge contact is connected to an electrically conductive support member which presses the plate with its underside on the pole piece and which rests against the inner wall of the cup.
  • an electrically conductive support member which presses the plate with its underside on the pole piece and which rests against the inner wall of the cup.
  • the support element is preferably the inwardly bent by 180 ° edge of the outer cup.
  • the support member may also be an inner cup of smaller diameter than the outer cup, or a pressed-in ring which is preferably slotted, i. having a slot.
  • the top and bottom of the platelet passes over a respective slope on the outer lateral surface passes. This ensures that When applying the edge contact in any case remains a distance from the outer surface.
  • FIG. 1 shows an inventive (thin) plate 1 with an ohmic
  • FIG. 2 shows a schematic section through an inventive electric primer for small-caliber ammunition.
  • an electrically conductive pole piece 5 is arranged, wherein the first pole of the resistance bridge 2 with the cup 3 and the second pole is connected to a pole piece 5, which protrudes from the cup 3 in a bore 14 and with respect to this via an insulation 4 is electrically isolated.
  • the actual ohmic resistance or the resistance bridge 2 is applied as a metal film on the thin plate 1 of insulating material, the top and bottom are metallized.
  • This plate 1 forms a stable and Well-defined basis for the manufacturing process, but at the same time to some extent elastic, so that it can be contacted by pressing the contacts without breaking.
  • the resistance bridge 2 is formed by a thin layer of a high-resistance material (eg CrNi alloy). A radial region 1 1 on the top, the
  • Length of the length of the resistance bridge corresponds, the outer surface 9 and the transitional slopes 10 are not metallized.
  • the exact geometry of the resistance bridge 2 (length, width, thickness) determines the value of the ohmic resistance of the resistance bridge 2 and the subsequent sensitivity of the primer cap and can be easily adapted as required.
  • Typical resistances are in the lower single-digit range of ohms and the voltages required for ignition are usually less than 10 V. No high voltage is required. Due to the structural design of the geometry of the resistance bridge 2, it is still possible to make the ANZDH insensitive to electrostatic charge.
  • the second pole of the resistance bridge 2 is located as a metallization 8a on the underside of the plate 1, the other first pole of the resistance bridge 2 is located as an edge region 8d at the edge of the top.
  • the current can flow from the underside or its metallization 8a via the metallized walls 8b of the hole 12 to the inner metallization 8c to the second pole of the resistance bridge 2.
  • an electrically conductive support element is pressed, which fixes the plate 1 in its position and ensures electrical contact with the outer cup 3 of the primer cap and thus the sleeve of the small caliber ammunition.
  • This upper support element that makes the metallic contact with the outer metal cup 3 can on For example, the top of the outer cup 3 can be bent inwardly by 180 °, and this bent portion forms the support member, or an inner cup 7 of smaller diameter can be inserted (see Figure 2) or it can only be one small (possibly slotted) ring or even several rings are pressed. All support elements must be supported against the inner wall of the outer cup 3. Still other methods are conceivable which hold the wafer in position and ensure electrical contact with the outer bowl 3.
  • the priming mixture (AZM) 6 is pressed onto the upper side of the plate 1, ie into the upper free space of the ignition cap, analogously to classical mechanical ANZDH.
  • the composition of the AZM 6 can be adapted to the specific requirements of electrical initiation (eg by avoiding particularly impact-sensitive components).
  • the AZM is sealed with a cover and a varnish, so that no residue can escape during further processing.
  • a current can flow: From the pole piece 5 in the metallization 8a on the underside of the plate 1, through the Metallization 8b in the central hole 12 of the plate 1, on the inner metallization 8c on the upper side of the plate 1, by the ohmic resistance of the resistance bridge 2, to the outer metallization or the edge contact 8d on the upper side of the plate 1, the inner cup 7 and finally to the outer cup 3.
  • the metallizations on the plate 1 are marked with the reference numeral 8 or 8a, 8b, 8c, 8d. Depending on the caliber of the small-caliber ammunition

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Spark Plugs (AREA)
  • Paints Or Removers (AREA)
  • Fuses (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

The invention relates to an igniting cap for small caliber munition having an external metallic cup (3) in which an igniting mixture (6) is arranged, which generates hot combustion gases following initiation. In order to enable more versatile control of the initiation process in the weapon, according to the invention an electrically initiated resistance bridge (2) and an electrically conductive pole piece (5) are additionally arranged in the igniting cap, wherein the first pole of the resistance bridge (2) is connected to the cup (3) and the second pole is connected to the pole piece (5), which protrudes out of the cup (3) and is electrically insulated therefrom.

Description

Elektrisches Anzündhütchen für Kleinkalibermunition  Electric primer for small caliber ammunition
Die Erfindung betrifft ein Anzündhütchen für Kleinkalibermunition mit einem äu- ßeren metallischen Napf in dem eine Anzündmischung angeordnet ist, die nachThe invention relates to a primer cap for small-caliber ammunition with an outer metal cup in which a priming mixture is arranged, which after
Initiierung heiße Verbrennungsgase erzeugt. Außerdem soll eine bevorzugte Verwendung angegeben werden. Initiation generates hot combustion gases. In addition, a preferred use should be specified.
In Kleinkalibermunition wird aktuell zur Anzündung des Treibladungspulvers (TLP) stets ein Anzündhütchen (ANZDH) eingesetzt, das durch den Aufschlag eines Schlagbolzens initiiert wird. Bei der Initiierung wird ein Gemisch aus Primärexplosivstoffen und Energie liefernden Zuschlägen (=Anzündmischung, kurz AZM) zur chemischen Umsetzung gebracht und die heißen Verbrennungsgase zünden das TLP an. Diese Anzündhütchen sind klein und günstig in der Herstel- lung, aber die notwendige Mechanik in der Waffe ist relativ aufwändig. In small-caliber ammunition, a primer (ANZDH) is always used to ignite the propellant charge powder (TLP), which is initiated by the impact of a firing pin. During the initiation, a mixture of primary explosives and energy-supplying additives (= igniter mixture, abbreviated to AZM) is brought to chemical conversion and the hot combustion gases ignite the TLP. These primers are small and inexpensive to manufacture, but the necessary mechanics in the weapon are relatively expensive.
Der Erfindung liegt die Aufgabe zugrunde, ein Anzündhütchen nach dem Oberbegriff des Anspruchs 1 in Hinblick auf eine vielseitigere Kontrolle des Initiie- rungsvorgangs in der Waffe zu verbessern. The invention has for its object to improve a primer according to the preamble of claim 1 in terms of a more versatile control of the initiating tion process in the weapon.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst. According to the invention, this object is solved by the features of claim 1.
Um eine vielseitigere Kontrolle des Initiierungsvorgangs in der Waffe zu ermögli- chen ist es leichter, die Initiierung des Anzündhütchens elektrisch auszuführen.In order to allow a more versatile control of the initiation process in the weapon, it is easier to carry out the initiation of the primer cap electrically.
Dazu muss das Anzündhütchen so gebaut sein, dass es bei gleicher Größe Komponenten enthält, die die Umsetzung der elektrischen Energie in eine chemische Reaktion der Anzündmischung (AZM) sicherstellen kann. Dazu wird die Wärme genutzt, die entsteht, wenn ein ohmscher Widerstand von elektrischem Strom durchflössen wird. For this purpose, the primer must be constructed so that it contains the same size components that can ensure the conversion of electrical energy into a chemical reaction of the igniter mixture (AZM). This is the Heat is used, which arises when an ohmic resistance is traversed by electric current.
Die äußere Dimension des Anzündhütchens entspricht dem eines klassischen mechanischen Anzündhütchens (ANZDH), damit es weiterhin in Standardhülsen für Kleinkalibermunition eingesetzt werden kann. Zusätzlich erforderlich ist allerdings eine Separation der beiden elektrischen Pole, welche durch Einführung eines elektrisch leitenden Polstücks in das ANZDH ermöglicht wird. Dadurch, dass im Anzündhütchen zusätzlich eine elektrisch initiierbare Widerstandsbrücke und ein elektrisch leitendes Polstück angeordnet sind, wobei der erste Pol der Widerstandsbrücke mit dem Napf und der zweite Pol mit dem Polstück verbunden ist, welches aus dem Napf ragt und gegenüber diesem elektrisch isoliert ist, ist eine vielseitige Kontrolle des Initiierungsvorgangs in der Waffe möglich. The outer dimension of the primer corresponds to that of a classic mechanical primer (ANZDH), so that it can continue to be used in standard sleeves for small-caliber ammunition. In addition, however, a separation of the two electrical poles, which is made possible by introducing an electrically conductive pole piece in the ANZDH is required. Characterized in that in the primer additionally an electrically initiatable resistance bridge and an electrically conductive pole piece are arranged, wherein the first pole of the resistance bridge with the cup and the second pole is connected to the pole piece which protrudes from the cup and is electrically insulated from this, is a versatile control of the initiation process in the weapon possible.
Bevorzugt ist im Boden des Napfes eine durchgehende Bohrung eingebracht und weist das Polstück einen Pin auf, der in die Bohrung ragt, wobei zwischen dem Polstück und dem Napf eine Isolation angeordnet ist. Preferably, a through bore is introduced in the bottom of the cup and has the pole piece on a pin which projects into the bore, wherein between the pole piece and the cup an insulation is arranged.
Bevorzugt ist die Isolation elastisch und bricht bei Druckbelastung nicht. Bevorzugt besteht die Isolation aus Vulkanfiber. Durch die Isolation ist das Polstück elektrisch vom äußeren Napf des Anzündhütchens getrennt. Außerdem stellt die Isolation Gasdichtigkeit beim Abfeuern dadurch sicher, dass sie durch den an- steigenden Druck leicht komprimiert wird und damit in alle eventuell vorhandenePreferably, the insulation is elastic and does not break under pressure load. Preferably, the insulation consists of vulcanized fiber. Due to the insulation, the pole piece is electrically separated from the outer cup of the primer cap. In addition, the insulation ensures gas-tightness during firing, as it is slightly compressed by the rising pressure and thus into any possibly present ones
Zwischenräume gedrückt wird. Die Isolation ist zu diesem Zweck aus einem leicht elastischen Material gefertigt, das bei Druckbelastung nicht bricht. ln einer vorteilhaften Ausführungsform weist das Polstück auf seinem der Bohrung abgewandten Ende eine Auskragung auf. Auf dieser Auskragung liegt ein Plättchen auf, welches nachfolgend beschrieben wird. In einer vorteilhaften Ausführungsform ist im Napf ein Plättchen aus einem elektrisch isolierenden Material (z.B. FR4 oder PVC) mit einer Oberseite und einer zum Polstück gewandten Unterseite und mit einem Loch angeordnet und ist die Widerstandsbrücke auf der Oberseite angeordnet, wobei die Unterseite und das Loch metallisiert und elektrisch miteinander verbunden sind und auf dem Rand der Oberseite ein metallischer Randkontakt angeordnet ist, der mit dem ersten Pol der Widerstandsbrücke verbunden ist und der zweite Pol der Widerstandsbrücke mit der Metallisierung des Lochs verbunden ist und das Plättchen auf dem elektrisch leitenden Polstück aufliegt. Bevorzugt ist der Randkontakt mit einem elektrisch leitenden Stützelement verbunden ist, welches das Plättchen mit seiner Unterseite auf das Polstück drückt und welches an der inneren Wandung des Napfs anliegt. Dadurch ist die elektrische Verbindung des äußeren Napfes mit dem elektrisch leitenden Stützelement und über den Randkontakt bis zum ersten Pol der Widerstandsbrücke sicherge- stellt. Intermediate spaces is pressed. The insulation is made for this purpose of a slightly elastic material that does not break under pressure. In an advantageous embodiment, the pole piece on its end facing away from the bore on a projection. On this projection is a small plate, which will be described below. In an advantageous embodiment, in the cup a plate made of an electrically insulating material (eg FR4 or PVC) with an upper side and a pole piece facing bottom and arranged with a hole and the resistance bridge is arranged on top, wherein the bottom and the hole metallized and are electrically connected to each other and on the edge of the upper side a metallic edge contact is arranged, which is connected to the first pole of the resistance bridge and the second pole of the resistance bridge is connected to the metallization of the hole and the plate rests on the electrically conductive pole piece. Preferably, the edge contact is connected to an electrically conductive support member which presses the plate with its underside on the pole piece and which rests against the inner wall of the cup. As a result, the electrical connection of the outer cup to the electrically conductive support element and via the edge contact to the first pole of the resistance bridge is ensured.
Das Stützelement ist bevorzugt der nach innen um 180° umgebogene Rand des äußeren Napfes. Alternativ kann das Stützelement auch ein innerer Napf mit kleinerem Durchmesser als der äußere Napf sein oder ein eingepresster Ring sein, der bevorzugt geschlitzt ist, d.h. einen Schlitz aufweist. The support element is preferably the inwardly bent by 180 ° edge of the outer cup. Alternatively, the support member may also be an inner cup of smaller diameter than the outer cup, or a pressed-in ring which is preferably slotted, i. having a slot.
Bevorzugt geht die Ober- und Unterseite des Plättchens über jeweils eine Schräge auf die äußere Mantelfläche übergeht. Dadurch ist sichergestellt, dass beim Aufbringen des Randkontaktes auf jeden Fall ein Abstand zur äußeren Mantelfläche bleibt. Preferably, the top and bottom of the platelet passes over a respective slope on the outer lateral surface passes. This ensures that When applying the edge contact in any case remains a distance from the outer surface.
Bevorzugt ist die Verwendung des erfindungsgemäßen Anzündhütchens für Pis- tolen- und Gewehrmunition im Kaliberbereich von 4,6 mm bis 12,7 mm. The use of the primer cap for pistol ammunition and rifle ammunition in the caliber range from 4.6 mm to 12.7 mm is preferred.
Nachfolgend wird die Erfindung an einer bevorzugten Ausführungsform des Anzündhütchens weiter erläutert. Figur 1 zeigt ein erfindungsgemäßes (dünnes) Plättchen 1 mit einem ohmschenThe invention will be further explained in a preferred embodiment of the primer cap. FIG. 1 shows an inventive (thin) plate 1 with an ohmic
Widerstand als elektrisch initiierbare Widerstandsbrücke 2. Ober- und Unterseite des Plättchens 1 sind metallisiert. Nur die äußere Mantelfläche 9, der innere Bereich 1 1 und jeweils eine Schräge 10, die den Übergangsbereich zwischen Ober- und Unterseite und Mantelfläche 9 des Plättchens 1 bildet, sind nicht metallisiert und damit isolierend. Nur zur besseren Erkennbarkeit ist der ringförmige isolierende Bereich 1 1 , der den Randbereich 8d bzw. die äußere Metallisierung von der inneren Metallisierung 8c trennt, vertieft dargestellt. Verbunden sind diese zwei Bereiche 8c und 8d nur über die Widerstandsbrücke 2. Figur 2 zeigt in einem schematischen Schnitt durch ein erfindungsgemäßes elektrisches Anzündhütchen für Kleinkalibermunition. Resistance as electrically initiatable resistance bridge 2. The top and bottom of the plate 1 are metallized. Only the outer circumferential surface 9, the inner region 1 1 and in each case a bevel 10, which forms the transition region between upper and lower sides and lateral surface 9 of the small plate 1, are not metallized and thus insulating. Only for better recognition, the annular insulating region 1 1, which separates the edge region 8d or the outer metallization of the inner metallization 8c, shown recessed. These two regions 8c and 8d are connected only via the resistance bridge 2. FIG. 2 shows a schematic section through an inventive electric primer for small-caliber ammunition.
Im äußeren Napf 3 ist ein elektrisch leitendes Polstück 5 angeordnet, wobei der erste Pol der Widerstandsbrücke 2 mit dem Napf 3 und der zweite Pol mit einem Polstück 5 verbunden ist, welches aus dem Napf 3 in eine Bohrung 14 ragt und gegenüber diesem über eine Isolation 4 elektrisch isoliert ist. In the outer cup 3, an electrically conductive pole piece 5 is arranged, wherein the first pole of the resistance bridge 2 with the cup 3 and the second pole is connected to a pole piece 5, which protrudes from the cup 3 in a bore 14 and with respect to this via an insulation 4 is electrically isolated.
Der eigentliche ohmsche Widerstand bzw. die Widerstandsbrücke 2 wird als Metallfilm auf das dünne Plättchen 1 aus isolierendem Material aufgebracht, dessen Ober- und Unterseite metallisiert sind. Dieses Plättchen 1 bildet eine stabile und gut definierte Basis für den Herstellungsprozess, ist aber gleichzeitig bis zu einem gewissen Grad elastisch, damit es durch Aufpressen der Kontakte kontaktiert werden kann ohne zu brechen. Auf der Oberseite des Plättchens wird die Widerstandsbrücke 2 durch eine dünne Schicht eines hochohmigen Materials (z.B. CrNi-Legierung) gebildet. Ein radialer Bereich 1 1 auf der Oberseite, dessenThe actual ohmic resistance or the resistance bridge 2 is applied as a metal film on the thin plate 1 of insulating material, the top and bottom are metallized. This plate 1 forms a stable and Well-defined basis for the manufacturing process, but at the same time to some extent elastic, so that it can be contacted by pressing the contacts without breaking. On the upper side of the plate, the resistance bridge 2 is formed by a thin layer of a high-resistance material (eg CrNi alloy). A radial region 1 1 on the top, the
Länge der Länge der Widerstandsbrücke entspricht, die äußere Mantelfläche 9 und deren Übergangsschrägen 10 werden nicht metallisiert. Die genaue Geometrie der Widerstandsbrücke 2 (Länge, Breite, Dicke) bestimmt den Wert des ohmschen Widerstandes der Widerstandsbrücke 2 und die spätere Empfindlich- keit des Anzündhütchens und kann je nach Anforderung leicht angepasst werden. Length of the length of the resistance bridge corresponds, the outer surface 9 and the transitional slopes 10 are not metallized. The exact geometry of the resistance bridge 2 (length, width, thickness) determines the value of the ohmic resistance of the resistance bridge 2 and the subsequent sensitivity of the primer cap and can be easily adapted as required.
Typische Widerstände bewegen sich im unteren einstelligen Ohm-Bereich und die für eine Zündung benötigen Spannungen liegen in aller Regel unter 10 V. Es ist keine Hochspannung erforderlich. Durch die konstruktive Ausführung der Geometrie der Widerstandsbrücke 2 ist es aber dennoch möglich, die ANZDH unempfindlich gegen elektrostatische Aufladung zu machen. Der zweite Pol der Widerstandsbrücke 2 befindet sich als Metallisierung 8a auf der Unterseite des Plättchens 1 , der andere erste Pol der Widerstandsbrücke 2 befindet sich als Randbereich 8d am Rand der Oberseite. Durch ein kleines Loch 12 in der Mitte des Plättchens 1 , dessen Wände metallisiert sind, kann der Strom von der Unterseite bzw. dessen Metallisierung 8a über die metallisierten Wände 8b des Lochs 12 auf die innere Metallisierung 8c zum zweiten Pol der Widerstandsbrücke 2 fließen. Typical resistances are in the lower single-digit range of ohms and the voltages required for ignition are usually less than 10 V. No high voltage is required. Due to the structural design of the geometry of the resistance bridge 2, it is still possible to make the ANZDH insensitive to electrostatic charge. The second pole of the resistance bridge 2 is located as a metallization 8a on the underside of the plate 1, the other first pole of the resistance bridge 2 is located as an edge region 8d at the edge of the top. Through a small hole 12 in the center of the plate 1, the walls of which are metallized, the current can flow from the underside or its metallization 8a via the metallized walls 8b of the hole 12 to the inner metallization 8c to the second pole of the resistance bridge 2.
Auf den Randbereich 8d der Oberseite des Plättchens 1 wird ein elektrisch leitendes Stützelement gepresst, der das Plättchen 1 in seiner Position fixiert und den elektrischen Kontakt zum äußeren Napf 3 des Anzündhütchens und damit zur Hülse der Kleinkalibermunition sicherstellt. Dieses obere Stützelement, dass den metallischen Kontakt zum äußeren metallischen Napf 3 herstellt, kann auf verschiedene Arten ausgeführt sein: z.B. kann die Oberseite des äußeren Napfes 3 nach innen um 180° umgebogen werden und dieser umgebogene Teil bildet das Stützelement oder es kann ein innerer Napf 7 mit kleinerem Durchmesser eingesetzt werden (siehe Figur 2) oder es kann auch nur ein kleiner (evtl. geschlitzter) Ring oder auch mehrere Ringe eingepresst werden. Alle Stützelemente müssen sich gegen die innere Wand des äußeren Näpfchens 3 abstützen. Es sind noch andere Methoden vorstellbar, die das Plättchen in Position halten und elektrischen Kontakt zum äußeren Napf 3 sicherstellen. Auf die Oberseite des Plättchens 1 , d.h. in den oberen Freiraum des Anzündhüt- chens wird die Anzündmischung (AZM) 6 eingepresst, analog zu klassischen mechanischen ANZDH. Die Zusammensetzung der AZM 6 kann für die speziellen Anforderungen der elektrischen Initiierung angepasst werden (z.B. durch Verzicht auf besonders schlagempfindliche Komponenten). Wie bei mechani- sehen Anzündhütchen wird die AZM mit einer Abdeckung und einem Lack verschlossen, damit in der weiteren Verarbeitung keine Satzstäube austreten können. On the edge region 8d of the upper side of the plate 1, an electrically conductive support element is pressed, which fixes the plate 1 in its position and ensures electrical contact with the outer cup 3 of the primer cap and thus the sleeve of the small caliber ammunition. This upper support element that makes the metallic contact with the outer metal cup 3, can on For example, the top of the outer cup 3 can be bent inwardly by 180 °, and this bent portion forms the support member, or an inner cup 7 of smaller diameter can be inserted (see Figure 2) or it can only be one small (possibly slotted) ring or even several rings are pressed. All support elements must be supported against the inner wall of the outer cup 3. Still other methods are conceivable which hold the wafer in position and ensure electrical contact with the outer bowl 3. The priming mixture (AZM) 6 is pressed onto the upper side of the plate 1, ie into the upper free space of the ignition cap, analogously to classical mechanical ANZDH. The composition of the AZM 6 can be adapted to the specific requirements of electrical initiation (eg by avoiding particularly impact-sensitive components). As with mechanical primers, the AZM is sealed with a cover and a varnish, so that no residue can escape during further processing.
Bei Anlegen einer elektrischen Spannung an das Polstück 5, bzw. an dessen Pin 13 und an den äußeren Napf 3, der die Patronenhülse des Anzündhütchens bildet kann ein Strom fließen: Vom Polstück 5 in die Metallisierung 8a auf der Unterseite des Plättchens 1 , durch die Metallisierung 8b im zentralen Loch 12 des Plättchens 1 , auf die innere Metallisierung 8c auf der Oberseite des Plättchens 1 , durch den ohmschen Widerstand der Widerstandsbrücke 2, zur äußeren Metalli- sierung bzw. den Randkontakt 8d auf der Oberseite des Plättchens 1 , den inneren Napf 7 und schließlich zum äußeren Napf 3. Upon application of an electrical voltage to the pole piece 5, or at its pin 13 and the outer cup 3, which forms the cartridge case of the primer cap, a current can flow: From the pole piece 5 in the metallization 8a on the underside of the plate 1, through the Metallization 8b in the central hole 12 of the plate 1, on the inner metallization 8c on the upper side of the plate 1, by the ohmic resistance of the resistance bridge 2, to the outer metallization or the edge contact 8d on the upper side of the plate 1, the inner cup 7 and finally to the outer cup 3.
Durch den Stromfluss erwärmt sich der Widerstand der Widerstandsbrücke 2 und der darauf aufgepresste Anzündsatz 6 wird initiiert. Die bei der folgenden chemischen Reaktion entstehenden Anzündgase können das ANZDH nach oben verlassen und strömen in einer Patrone zum Treibladungspulver und zünden dieses an. Die Metallisierungen auf dem Plättchen 1 sind mit dem Bezugszeichen 8 bzw. 8a, 8b, 8c, 8d gekennzeichnet. Je nach Kaliber der Kleinkalibermunition kommen unterschiedliche große AN-Due to the current flow, the resistance of the resistance bridge 2 heats up and the ignition charge 6 pressed thereon is initiated. The ignition gases produced during the following chemical reaction can move the ANZDH upwards leave and flow in a cartridge to the propellant powder and ignite this. The metallizations on the plate 1 are marked with the reference numeral 8 or 8a, 8b, 8c, 8d. Depending on the caliber of the small-caliber ammunition
ZDH mit unterschiedlichen Satzmengen zum Einsatz. Dimensionen und Aufbau des hier dargestellten Anzündhütchens lassen eine Skalierung ohne Probleme zu, so dass Anzündhütchen für Pistolen- und Gewehrmunition im Kaliberbereich von 4,6 mm bis 12,7 mm hergestellt werden können. ZDH with different set amounts are used. Dimensions and construction of the primer shown here allow a scaling without problems, so that primer for pistol and rifle ammunition in the caliber range of 4.6 mm to 12.7 mm can be produced.

Claims

Patentansprüche claims
1 . Anzündhütchen für Kleinkalibermunition mit einem äußeren metallischen Napf (3) in dem eine Anzündmischung (6) angeordnet ist, die nach Initiierung heiße Verbrennungsgase erzeugt, dadurch gekennzeichnet, dass im Anzündhütchen zusätzlich eine elektrisch initiierbare Widerstandsbrücke (2) und ein elektrisch leitendes Polstück (5) angeordnet sind, wobei der erste Pol der Widerstandsbrücke (2) mit dem Napf (3) und der zweite Pol mit dem Polstück (5) verbunden ist, welches aus dem Napf (3) ragt und gegenüber diesem elektrisch isoliert ist. 1 . An ignition cap for small-caliber ammunition with an outer metal cup (3) in which a priming mixture (6) is arranged which generates hot combustion gases after initiation, characterized in that in the primer additionally an electrically initiatable resistance bridge (2) and an electrically conductive pole piece (5) are arranged, wherein the first pole of the resistance bridge (2) with the cup (3) and the second pole with the pole piece (5) is connected, which protrudes from the cup (3) and is electrically insulated from this.
2. Anzündhütchen nach Anspruch 1 , dadurch gekennzeichnet, dass im Boden des Napfes (3) eine durchgehende Bohrung (14) eingebracht ist und das Polstück (5) einen Pin (13) aufweist, der in die Bohrung (14) ragt, wobei zwischen dem Polstück (5) und dem Napf (3) eine elektrische Isolation (4) angeordnet ist. 2. Anzündhütchen according to claim 1, characterized in that in the bottom of the cup (3) has a through bore (14) is introduced and the pole piece (5) has a pin (13) which projects into the bore (14), wherein between the pole piece (5) and the cup (3) an electrical insulation (4) is arranged.
3. Anzündhütchen nach Anspruch 2, dadurch gekennzeichnet, dass die Isolation (4) elastisch ist und bei Druckbelastung nicht bricht und bevorzugt aus Vulkanfiber besteht. 3. Anzündhütchen according to claim 2, characterized in that the insulation (4) is elastic and does not break under pressure load and preferably consists of vulcanized fiber.
4. Anzündhütchen nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass das Polstück (5) auf seinem der Bohrung (14) abgewandten Ende eine Auskragung (5a) aufweist. 4. Anzündhütchen according to claim 2 or 3, characterized in that the pole piece (5) on its bore (14) facing away from the end a projection (5 a).
5. Anzündhütchen nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass im Napf (3) ein Plättchen (1 ) aus einem elektrisch isolierenden Material mit einer Oberseite und einer zum Polstück (5) gewandten Unterseite und mit einem Loch (12) angeordnet ist und die Widerstandsbrücke (2) auf der Oberseite angeordnet ist, wobei die Unterseite und das Loch (12) metal- lisiert und elektrisch miteinander verbunden sind und auf dem Rand der Oberseite ein metallischer Randkontakt (8d) angeordnet ist, der mit dem ersten Pol der Widerstandsbrücke (2) verbunden ist und der zweite Pol der Widerstandsbrücke (2) mit der Metallisierung (8b) des Lochs (12) verbunden ist und das Plättchen (1 ) auf dem Polstück (5) aufliegt. 5. Anzündhütchen according to one of claims 1 to 4, characterized in that in the cup (3) a plate (1) made of an electrically insulating material having an upper side and a pole piece (5) facing the bottom and with a hole (12) is and the resistance bridge (2) is arranged on the top, wherein the bottom and the hole (12) metal lisiert and electrically connected to each other and on the edge of the top of a metallic edge contact (8d) is arranged, which is connected to the first pole of the resistance bridge (2) and the second pole of the resistance bridge (2) with the metallization (8b) of the hole (12) is connected and the plate (1) rests on the pole piece (5).
6. Anzündhütchen nach Anspruch 5, dadurch gekennzeichnet, dass der Randkontakt (8d) mit einem elektrisch leitenden Stützelement verbunden ist, welches das Plättchen (1 ) mit seiner Unterseite auf das Polstück (5) drückt und welches an der inneren Wandung des Napfs (3) anliegt. 6. Anzündhütchen according to claim 5, characterized in that the edge contact (8d) is connected to an electrically conductive support member which presses the plate (1) with its underside on the pole piece (5) and which on the inner wall of the cup (3 ) is present.
7. Anzündhütchen nach Anspruch 6, dadurch gekennzeichnet, dass das Stützelement der nach innen um 180° umgebogene Rand des äußeren Napfes (3) ist. 7. primer according to claim 6, characterized in that the support element of the inwardly bent by 180 ° edge of the outer cup (3).
8. Anzündhütchen nach Anspruch 6, dadurch gekennzeichnet, dass das Stützelement ein innerer Napf (7) mit kleinerem Durchmesser als der äußere Napf (3) ist. 8. primer cap according to claim 6, characterized in that the supporting element is an inner cup (7) with a smaller diameter than the outer cup (3).
9. Anzündhütchen nach Anspruch 6, dadurch gekennzeichnet, dass das Stützelement ein eingepresster Ring ist, der bevorzugt geschlitzt ist. 9. primer cap according to claim 6, characterized in that the support element is a pressed-in ring, which is preferably slotted.
10. Anzündhütchen nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Ober- und Unterseite des Plättchens (1 ) über jeweils eine Schräge (10) auf die äußere Mantelfläche (9) übergeht. 10. Anzündhütchen according to one of claims 1 to 9, characterized in that the upper and lower sides of the small plate (1) via a respective slope (10) on the outer lateral surface (9) passes.
1 1 . Verwendung eines Anzündhütchens nach einem der Ansprüche 1 bis 10 für Pistolen- und Gewehrmunition im Kaliberbereich von 4,6 mm bis 12,7 mm. 1 1. Use of a primer cap according to one of claims 1 to 10 for pistol and rifle ammunition in the caliber range from 4.6 mm to 12.7 mm.
EP14750181.1A 2013-08-05 2014-08-05 Electrical igniting cap for small caliber munition Active EP3030857B1 (en)

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PL14750181T PL3030857T3 (en) 2013-08-05 2014-08-05 Electrical igniting cap for small caliber munition
RS20180527A RS57301B1 (en) 2013-08-05 2014-08-05 Electrical igniting cap for small caliber munition

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DE102013012910 2013-08-05
PCT/EP2014/066817 WO2015018828A1 (en) 2013-08-05 2014-08-05 Electrical igniting cap for small caliber munition

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KR101921167B1 (en) 2018-11-22
US10415944B2 (en) 2019-09-17
CA2920448C (en) 2021-05-25
CA2920448A1 (en) 2015-02-12
US20160161237A1 (en) 2016-06-09
ES2667953T3 (en) 2018-05-16
DE102014011375A1 (en) 2015-02-05
PL3030857T3 (en) 2018-10-31
TR201806310T4 (en) 2018-06-21
KR20160078951A (en) 2016-07-05
BR112016002532B1 (en) 2021-01-19
RS57301B1 (en) 2018-08-31
EP3030857B1 (en) 2018-02-21

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