DE1901271A1 - Inductive connection for an electrical ignition system of a powder or explosive charge - Google Patents

Description

Messerschmitt-Bölkow Ottobrunn, January 8, 1969

Society with BP 798

limited liability SXl Me / gö Munich

Inductive connection for an electrical ignition system of a powder or explosive charge

The invention relates to an indiiikfcive lez & tndv & g between an electrical ignition system of a Ρι> 1ΐ ^: «ι: - οά $ ν explosive charge and elrisr SpeisespannmigsqueXle m% ^ WHi * vo ,; dbs rtragerwieklungen *

Such inductive YerbiEcI ^ Egeo, irar inferEieYOrs-irsysg ^ «^ exektriswhe ^, ^ fUids ^ tems ¥ O £ i Pul shipments si ^ fi ξ» Β * '- ^ V- ^ öigung mit Fiu ^ Kr ^ i - pei'ai>3e;; ha / ^r s ^ ir; 2'iahtiu: -e> i-ri. ΦΑ'η - \ - ν Τΐ-Λ? ^ - script 2 640 4i7 tjakarmt «. With thesr hmQim% ^; ? 2 iiij i; _feti:; .. ^ is a tine only "übartragerwiakXimg," Ji = "g" xfect ^^ foCir ^ ^ α • y * tfm and diis in öits "" case than 5 * r # il) safca ? ψθ (? β,: 11ύ £ κ · * - ϊ'Ώ ^ loading auiWtietndir missile tr ft «s eintfö IbsaliiiflVokT ^ ge«

V: Ο0ϋ3 · / Ο · Ή BADORIGiNAL

starts. The launch tube has a second transformer winding which is connected to a suitable supply voltage source and is inductively coupled to the first transformer winding in the launch position of the missile.

The first transformer winding housed in the plug body is surrounded by a steel jacket that shields magnetic interference fields, but with strong magnetic interference fields in the first transformer winding, voltages can be induced that are sufficient to ignite the plug body propellant. For safety reasons alone, however, such an undesired ignition of the propellant charge must be avoided. If not only propellant charges from plug bodies, but also explosive charges from projectiles are to be ignited or supplied with ignition energy with such known inductive connections, undesired ignition by magnetic or electrostatic interference fields must be avoided under all circumstances.

The object of the invention is therefore to improve such known inductive connections so that an undesired output

solution of the electrical ignition system is avoided with certainty.

Starting from an inductive connection of the above ge = named type, this task is according to the invention ge = * iöBtj, since it's the transfer location / development of the Sundays tarns · from two in Sari · -: · g-a switch ten coils of different wiatelurig senses bo «=>

Τ., · Λ :: ■ -: ■ '-. ■; / ... ■ :. . '? ".- ί't Q ίluiig de w \ t the connected Züiidsystem νΓ-π ^ ¹ rW ■.!'·;.!. :: .-- ng in 2WQi elQlcüris SII iiintereinandii'gGSGhal A. ^ u.:. uz-Lni'.iii [ giavjickslte Spulön, öics are coupled with mioi QBtsp Uin ^ oion aiifweisende coils of the supply voltage source induls ° * Λν , "the effects of any magnetic interference fields that may be present in the ignition system are offset

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Transformer winding on each other, so that no undesirable Triggering of the ignition system due to these interference fields occur can.

According to a further development of the invention, the electrical ignition element of the ignition system is via the coils of the transformer winding shorted. The ohmic resistance of the transformer winding connected to the ignition system is so low that that an effective electrical short circuit of the electrical ignition element occurs, so that an undesired triggering of the ignition system by electrostatic charges with certainty is avoided. This is particularly the case when storing warheads equipped with such an ignition system or explosive charges with separated inductive connection required.

According to a preferred embodiment of the invention, the transformer windings are the supply voltage source and the ignition system dimensioned so that the resistance between the supply voltage source and the ignition system is matched. Through this' Design will the inductive transmission anyway? necessary transformer windings at the same time for the resistance transformation of the output resistance of the supply voltage source used on the input resistance of the ignition system, so that e.g. also relatively low-resistance electrical ignition elements Can be safely triggered with the aid of a supply voltage source having a high output resistance.

The inductive connection is preferably in the manner of a conventional one Coaxial connector with concentrically overlapping transformer windings. According to another Embodiment of the invention, however, the transformer windings can also be designed as flat coils, so that the actual plug connection by two

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Stirring planparellele plates are formed, which form the transformer windings included as flat coils.

The invention is based on the embodiments shown in the drawing explained in more detail.

Show in detail:

FIG. 1 shows an inductive plug connection in a coaxial design;

FIG. 2 shows an inductive plug connection with transformer windings designed as flat coils and

Figure 2 shows the simplified electrical circuit diagram of this Plug connections.

The connector shown in Figure 1 consists of a socket part 1 in which two cylindrical coils 2 and 5 are embedded one behind the other. This socket part 1 corresponds with a plug part 4, on the part of which can be inserted into the socket part 1, two further cylindrical coils 5 and 6 are arranged so that they are plugged together Plug connection from coils 2 and j5 of socket part 1 are covered.

In Figure 2, the one part of a connector designed with flat coils is shown schematically, which consists of a Plate 7 consists in which two adjacent flat coils 8 and 9 are embedded. The other part of the, not shown here Plug connection consists of the same arrangement, so that two further flat coils arranged in this with the here flat coils 8 and 9 shown lying congruently one on top of the other when the connector is plugged together.

From the simplified electrical ' The circuit diagram shows that the electrical ignition system ίο belonging transformer winding 11 made of two oppositely wound

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th coils 111 and 112, which are electrically connected in series are and act directly on an electrical ignition element 12, which at the same time has a very low ohmic resistance having transformer winding 11 is short-circuited. A supply voltage source not shown here 20 acts on a second transformer winding 21, which also consists of two coils 211 and 212 having opposite winding directions.

Are the ignition system 10 and the supply voltage source 20 over the transformer windings 11 and 21 are inductively connected to one another, so the corresponding Coils 111 and 211 as well as 112 and 212 each have the same winding sense, so that the induced in the coils 111 and 112 Add voltages to a total voltage, which trigger the ignition element 12 safely.

The transformer windings 11 and 21 are made of suitable materials 13 and 14, those in the unmated condition act as a magnetic short circuit, shielded against magnetic interference fields. Favor when assembled These materials, on the other hand, induce the inductive coupling, as the magnetic resistance for the area between the two transformer windings 11 and 21 forming magnetic flux is relatively small.

The number of turns of the transformer windings are 11 and 21 coordinated so that a resistance adjustment of the Supply voltage source 20 to the electrical ignition element 12 as a consumer of the output from the supply voltage source 20 Energy takes place.

This executed like this! Inductive plug-in connection has in addition to its advantageous «! electrical properties, such as insensitivity to magnetic 3-peat oil and electrical short-circuit of the tltlctrischsn ignition element in the unmated state for the sttokv connection, the further advantage,

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that they can be made mechanically very resistant, so that for certain applications of modern
Explosive charges directly connected to the plug part of the plug connection can be triggered without the reusable socket part connected to the plug part being damaged or even destroyed by the considerable shock wave load that occurs.

Patent claims:

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Claims (1)

Messerschmitt-Bölkow Ottobrunn, Jan 8, 1969 Society with BP 798 limited liability SXl Me / gö Munich Claims 1. Inductive connection between an electrical ignition system of a powder or explosive charge and a supply voltage source with the help of transformer windings, characterized in that the transformer winding (11) of the ignition system (10) consists of two series-connected coils (111, 112) different Winding sense exists. 2. Inductive connection according to claim 1, characterized in that the electrical ignition element (12) of the ignition system (30) is short-circuited via the coils (111, 112) of the transformer winding (11). 5. Inductive connection according to claims 1 or 2, characterized characterized in that the transformer windings (11,21) are dimensioned so that a resistance adjustment takes place between the supply voltage source (20) and the ignition system (10). 4. Inductive connection according to one of claims 1 to 3, characterized in that the transformer windings (11, 21) are designed as flat coils (8, 9). 5. Inductive connection according to one of claims 1 to 4, characterized in that for the transformer winding (11) of the ignition system (10) an additional magnetic short circuit when the connection is broken is provided. 009838/081 1 Blank page