EP0447757B1 - Dispositif pour l'allumage par induction de charges propulsives pour munition - Google Patents

Dispositif pour l'allumage par induction de charges propulsives pour munition Download PDF

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Publication number
EP0447757B1
EP0447757B1 EP91100941A EP91100941A EP0447757B1 EP 0447757 B1 EP0447757 B1 EP 0447757B1 EP 91100941 A EP91100941 A EP 91100941A EP 91100941 A EP91100941 A EP 91100941A EP 0447757 B1 EP0447757 B1 EP 0447757B1
Authority
EP
European Patent Office
Prior art keywords
firing
ignition
cup
firing tube
disposed
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
EP91100941A
Other languages
German (de)
English (en)
Other versions
EP0447757A2 (fr
EP0447757A3 (en
Inventor
Frank Abels
Stephan Berger
Hans-Jürgen Reese
Joachim Franke
Marcus Fidomski
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.)
Wegmann and Co GmbH
Original Assignee
Wegmann and Co 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 Wegmann and Co GmbH filed Critical Wegmann and Co GmbH
Publication of EP0447757A2 publication Critical patent/EP0447757A2/fr
Publication of EP0447757A3 publication Critical patent/EP0447757A3/de
Application granted granted Critical
Publication of EP0447757B1 publication Critical patent/EP0447757B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/58—Electric firing mechanisms
    • F41A19/63—Electric firing mechanisms having means for contactless transmission of electric energy, e.g. by induction, by sparking gap

Definitions

  • the invention relates to a device for inductively igniting the propellant charge of missiles and projectiles, in particular in a throwing system for fog candles, explosives and.
  • a device for inductively igniting the propellant charge of missiles and projectiles in particular in a throwing system for fog candles, explosives and.
  • an electrically ignitable squib arranged in the vicinity of the propellant charge, the connecting elements of which are connected to the ends of an ignition coil in which an ignition pulse is generated by means of induction from an ignition device.
  • Such devices are e.g. known from DE-OS-38 22 255.
  • Known devices for igniting propellant charges work either via contacts or by electro-inductive energy transfer.
  • the invention has for its object to provide a device of the type described in the preamble of claim 1 in such a way that vulnerable and complex assemblies are avoided and inductive interference is avoided when generating the ignition pulses become.
  • the device should be simple in construction and be able to be combined in a simple manner with devices for detecting the type of ammunition and for sensing the launch.
  • the basic idea of the invention is based on the fact that when using the electrodynamic principle, ignition pulses can be generated without the use of a complex frequency generator. Only a small, simple electric motor, for example a standard DC electric motor, is used. A specially designed permanent magnet is attached to the output shaft of the electric motor, which protrudes into the interior of the ignition coil. When the electric motor is switched on, the permanent magnet rotates and induces an alternating voltage in the ignition coil, which is fed to the squib. It has been found that, with appropriate control of the electric motor, the rotational speed is reached after about 35 ms at which the voltage induced in the ignition coil or the current caused by it is sufficient to ignite a connected squib. The ignition process is complete after 40 to 60 ms (varies depending on the squib - sample distribution). The DC voltage required to start the electric motor can vary over the range of 12 - 24V nominal voltage without significant ignition delays.
  • a particularly advantageous application of the device according to the invention relates to a throwing system for fog candles, explosive devices and.
  • a launching device with at least one launching cup with which a launching tube can be connected, in which projectiles can be inserted.
  • the device expediently has the features of claim 2.
  • the electric motor When used in the above throw system, the electric motor can be an integral part of the launch cup and can be easily wired.
  • the permanent magnet attached to the electric motor protrudes from the bottom of the launch cup.
  • a protective cover (claim 3) under which it can rotate freely.
  • a cast coil with an iron core is embedded (claim 4), into which the protective hood with the permanent magnet located below it projects.
  • the device according to the invention in particular when it is used in the above-mentioned throwing system, can be combined in a particularly simple manner with a device for detecting the type of throwing body (claim 6) and with an additional device for detecting shooting (claim 7) which can also work inductively.
  • the electrodynamic ignition device and the inductive ammunition type and firing detection can be made particularly simple, since both the electric motor with permanent magnet and the ignition coil with iron core and the proximity switches can be easily protected against the weather.
  • the electrical part of the system can largely consist of standard parts that have already proven their reliability and are inexpensive and always available due to their mass production.
  • a particular advantage of the device according to the invention can be seen in the very good electromagnetic compatibility of the direct current electric motor.
  • Fig. 1 shows a generally designated 18 launcher in a throwing system for fog candles, explosive devices and. Like., With a launching cup 1, is connected to a launch tube 6 via a bayonet holder 11, wherein a launcher 7 is inserted into the launch tube 6.
  • a direct current motor 2 is arranged coaxially to the longitudinal axis L of the launch device, the connecting lines 2.2 of which are led through the cup base 1.2 to the outside.
  • the launcher can be arranged, for example, on a combat vehicle (not shown), the connecting lines 2.2 being connected to the on-board network (not shown) of the combat vehicle via a relay 15 (FIG. 3).
  • a relay 15 FIG. 3
  • an operating device arranged in the combat vehicle with an ignition device and a control computer for controlling the relay 15.
  • a permanent magnet 5 is fixed so that it protrudes from the bottom 1.1 of the launch cup 1.
  • the permanent magnet 5 projects into a recess 6.3 in the bottom part 6.1 of the launch tube 6.
  • a protective hood 9 which is connected to the bottom 1.1 of the firing cup, in such a way that it can rotate freely within this protective hood.
  • the permanent magnet 5 is surrounded by an ignition coil 10 with an iron core (not shown), which is arranged in the side walls of the recess 6.3.
  • the ignition coil 10 is arranged within a potting compound so that it also protects against the weather is well protected. With the winding ends of the ignition coil 10, a squib 8 is connected, which is arranged in an upwardly open approach 6.2 of the base piece 6.1 and is thus directly below the lower part of the throwing body 7.
  • the rotating permanent magnet 5 When the electric motor 2 is started by the ignition device 17, the rotating permanent magnet 5 generates an alternating voltage in the ignition coil 10, which supplies the ignition current for the squib 8.
  • the embodiment of the launcher 18 shown in FIG. 1 is further equipped with a device for inductive detection of the type of missile.
  • coding pins 12 made of steel are arranged in the base piece 6.1 of the launch tube 6 on a circular arc around the longitudinal axis L such that their ends lie in the lower surface of the base piece 6.1.
  • electrical proximity switches 3 are arranged, so that their sensing ends in the bottom 1.1 of the launch cup 1 lie at predetermined angular intervals on a circular arc around the longitudinal axis L, the radius of which corresponds exactly to the circular arc on which the coding pins 12 are also arranged .
  • the proximity switches 3 lie outside the electric motor 2 and the type of bayonet holder 11 between the launch tube 6 and launch cup 1 ensures that when the launch tube 6 is inserted in the launch cup 1, each coding pin 12 is opposite a proximity switch 3 (see FIG. 2). As shown in FIG. 3, the proximity switches 3 are connected via lines 16 to evaluation electronics arranged in the operating device 17. The three proximity switches 3 make it possible to obtain an identification signal about the type of throwing body, which is sent to the evaluation electronics as a 3-bit binary value is passed on, the different signal values being given by the fact that zero to a maximum of three coding pins 12 are arranged in the base piece 6.1 of the launch tube 6, which actuate the proximity switches 3 in the launch cup 1 when the launch tube 6 is mounted.
  • Launch tube displaceable sensing pin 4 is made of steel.
  • the sensing pin 4 is arranged so that its end facing the inside of the launch tube 6 in the drawing lies at the top of the bottom piece 6.1 and a throwing body 7 inserted into the launch tube 6 sits with its lower edge on the sensing pin 4 and by its weight moves against the force of a compression spring 14 downwards towards the opposite proximity switch 13.
  • the sensing pin 4 is relieved and raised by the force of the spring 14. This is recognized by the proximity switch 13 and a corresponding signal is sent to the evaluation electronics 17 via a line 16. The launch or a possible ignition failure can thus be recognized.
  • the launch device 18 is operated from an operating device 17 which is arranged in the combat vehicle and, as mentioned, contains the ignition device and the control and evaluation device containing a control computer. If no shot is detected by sensor 13, the ammunition So sharp and the firing command is given by the control unit 17, the electric motor 2 is switched on via the ignition relay 15 for about 2 to 5 seconds. This is enough to ensure a safe ignition. The operator is informed by the control and evaluation electronics in the operating device 17 about the firing or a dud (misfire). There is also a main switch on the operating device 17, with which all the ignition relays for changing the ammunition can be blocked.
  • FIG. 4 shows how a plurality of launching devices 18 'can be connected to a common operating device 17' via lines 2.2 'and 16' and ignition relays 15 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Air Bags (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of El Displays (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (8)

  1. Dispositif pour l'allumage par induction de la charge propulsive de projectiles et d'obus, en particulier incorporé dans un système de projection de chandelles de brume, d'explosifs et analogues, comportant, disposée à proximité de la charge propulsive, une pastille d'amorçage à allumage électrique dont les éléments de connexion sont raccordés aux bornes d'une bobine d'allumage dans laquelle est générée par induction, par un dispositif d'allumage, une impulsion d'allumage, caractérisé en ce que, dans l'espace interne de la bobine d'allumage (10), est disposé de manière rotative un aimant permanent (5) lequel est relié à l'arbre de sortie (2.1) d'un moteur électrique (2) dont l'alimentation énergétique (2.2) peut être pilotée à partir du dispositif d'allumage électrique (17).
  2. Dispositif selon la revendication 1, incorporé dans un système d'éjection pour chandelles de brume, explosifs et analogues, constitué d'un dispositif de lancement (18) comportant au moins un boîtier de lancement (1) auquel peut être raccordé un tube de lancement (6) dans lequel est inserré un projectile (7), caractérisé en ce que la pastille (8) et la bobine d'allumage (10) sont disposées dans un élément de base du tube de lancement (6) de manière sensiblement coaxiale à l'axe longitudinal (L) dudit tube (6) et que le moteur électrique (2) est disposé coaxialement dans le boîtier de tir (1), de telle sorte que l'aimant permanent (5) fait saillie dudit boîtier (1) et pénètre à proximité du tube de lancement (6) relié au boîtier de lancement (1) dans un trou (6.3) pratiqué dans l'élément de base (6.1) dudit tube (6), ce trou étant entouré par la bobine d'allumage (10).
  3. Dispositif selon la revendication 2, caractérisé en ce que l'aimant permanent (5) est entouré par une hotte de protection (9) fixée au fond (1.1) du boîtier de lancement (1).
  4. Dispositif selon la revendication 3, caractérisé en ce que la bobine d'allumage (10) est disposée dans les parois latérales du trou (6.3), noyée dans l'élément de base (6.1) du tube de lancement (6).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le moteur électrique (2) est un moteur à courant continu dont l'alimentation électrique passe par un élément interrupteur pouvant être piloté, qui est commandé de manière informatisée par le dispositif d'allumage (17).
  6. Dispositif selon l'une des revendications 2 à 5, caractérisé en ce qu'il contient une installation pour la détection du type de projectile comportant des broches métalliques de codage (12) disposées dans l'élément de base (6.1) du tube (6) sur un premier cercle entourant l'axe longitudinal (L), à l'extérieur de la bobine d'allumage (10), ainsi que des commutateurs de proximité (3) faisant face aux broches de codage (12) et disposés à l'extérieur du moteur électrique (2), dans le fond (1.1) du boîtier de lancement (1) sur un deuxième cercle entourant l'axe longitudinal (L) dont le rayon correspond au premier cercle, commutateurs de proximité (3) au moyen desquels est piloté un analyseur électronique (17).
  7. Dispositif selon la revendication 6, caractérisé par la présence d'un commutateur de proximité supplémentaire (13) relié à l'analyseur électronique (17), de commutateurs associés à un broche métallique de sondage (4) traversant l'élément de base (6.1) du tube (6) et pouvant coulisser en direction axiale parallèlement à l'axe longitudinal (L) dudit tube (6), d'une broche (4) sur laquelle est monté, à l'extrémité opposée au tube (6), un projectile (7) inséré dans le tube (6), le poids de ce projectile permettant de faire coulisser la broche de sondage (4) en direction du commutateur de proximité supplémentaire (13) en s'opposant à la force exercée par un ressort (14).
  8. Dispositif selon les revendications 6 et 7, caractérisé en ce qu'un tube de lancement (6) et un boîtier de lancement (1) sont assemblés mutuellement par une monture à baïonnette (11) de telle sorte que chacune des broches de codage (12) ainsi que la broche de sondage (4) correspondent de manière précise à l'un des commutateurs de proximité (3, 13) situé dans le fond (1.1) du boîtier de lancement (1).
EP91100941A 1990-02-16 1991-01-25 Dispositif pour l'allumage par induction de charges propulsives pour munition Expired - Lifetime EP0447757B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4004848A DE4004848A1 (de) 1990-02-16 1990-02-16 Vorrichtung zum induktiven zuenden der treibladung von wurfkoerpern und geschossen, insbesondere in einem wurfsystem fuer nebelkerzen, sprengkoerper u. dgl.
DE4004848 1990-02-16

Publications (3)

Publication Number Publication Date
EP0447757A2 EP0447757A2 (fr) 1991-09-25
EP0447757A3 EP0447757A3 (en) 1992-07-22
EP0447757B1 true EP0447757B1 (fr) 1995-03-15

Family

ID=6400300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100941A Expired - Lifetime EP0447757B1 (fr) 1990-02-16 1991-01-25 Dispositif pour l'allumage par induction de charges propulsives pour munition

Country Status (3)

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EP (1) EP0447757B1 (fr)
DE (2) DE4004848A1 (fr)
NO (1) NO173294C (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137819A1 (de) * 1991-11-16 1993-05-19 Wegmann & Co Gmbh Vorrichtung zum identifizieren von munition
NL9301487A (nl) * 1993-08-27 1995-03-16 Halteren Metaal B V Van Ondervraag- en identificatiesysteem ten gebruike bij geschut.
DE19706605A1 (de) * 1997-02-20 1998-08-27 Dynamit Nobel Ag Sekundärspule für ein induktives Anzündsystem
DE102010026639B4 (de) * 2010-07-09 2019-12-12 Diehl Defence Gmbh & Co. Kg Trägervorrichtung für einen modularen Nebelwurfkörper
DE102012000114A1 (de) * 2012-01-05 2013-07-11 Rheinmetall Waffe Munition Gmbh Vorrichtung zur Erkennung einer Geschossvorlage
DE202012008823U1 (de) 2012-09-14 2012-11-23 Rheinmetall Waffe Munition Gmbh Vorrichtung zur Erkennung auch eines Zündversagers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459854A (en) * 1946-04-18 1949-01-25 Jr Willard E Swift Grenade projector
DE2048743A1 (de) * 1970-10-03 1973-05-30 Mauser Werke Ag Vorrichtung zum ausloesen einer initialzuendung fuer die treibladung von patronen auf elektrischem wege
AT330030B (de) * 1973-02-15 1976-06-10 Urbach Ing Erich Werfer
DE2355255C2 (de) * 1973-11-05 1984-05-10 Gianni Verga Milano Casati Anzündvorrichtung für Artillerietreibladungen
CH630756A5 (en) * 1978-09-08 1982-06-30 Mefina Sa Device generating monophase current comprising a stator and a rotor
DE3343485C2 (de) * 1983-12-01 1986-08-28 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Impulstransformator für elektrische Zünder
DE3417614A1 (de) * 1984-05-11 1985-11-14 Dynamit Nobel Ag, 5210 Troisdorf Waffenverschluss mit einem induktiven zuendenergie-uebertragungssystem
DE3705700A1 (de) * 1987-02-23 1988-09-01 Buck Chem Tech Werke Werfereinheit
DE3822255A1 (de) * 1988-07-01 1990-01-04 Wegmann & Co Wurfsystem fuer wurfkoerper, wie nebelkerzen und dergleichen
DE3844300C2 (de) * 1988-12-30 1998-05-07 Nico Pyrotechnik Wurfsystem für Nebelkerzen, Sprengkörper und dergleichen

Also Published As

Publication number Publication date
EP0447757A2 (fr) 1991-09-25
EP0447757A3 (en) 1992-07-22
DE59104923D1 (de) 1995-04-20
DE4004848A1 (de) 1991-08-22
NO910594L (no) 1991-08-19
NO910594D0 (no) 1991-02-14
NO173294B (no) 1993-08-16
NO173294C (no) 1993-11-24

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