KR20010033279A - Device for inducing a magnetic field in the mouth area of a launching device - Google Patents

Abstract

Once a missile, a shell or a rocket is propelled from a launching device, a tension can be induced in an induction device of the missile by using a device for generating a magnetic field. Said tension can be used to regulate and set off the igniter and optionally to control the missile. According to prior art, the magnetic field is generated in the launching device using induction coils, which use up a lot of electrical power. Since the device is generally mounted in the area of the mouth of the launching device, the latter is exposed to shocks and corrosive burning gases, having a negative effect on the contacts of the electrical connections. According to the invention, at least one permanent magnet (5) is mounted in the area of the mouth (2) of the launching device (1) to generate a magnetic field (9).

Description

DEVICE FOR INDUCING A MAGNETIC FIELD IN THE MOUTH AREA OF A LAUNCHING DEVICE}

Power can be generated by induction in missiles, in particular shells, and also in induction devices such as, for example, coil systems in launching rockets. This power is used to power an electrically triggered igniter, but to control circuitry so that any operation, such as a safe-release procedure or a release procedure, can be performed during flight or when the target is reached. It may be used to supply.

Coil placement in the muzzle of the firearm barrel is already known from US Pat. This coil acts as a first coil, such as a transformer on a second coil disposed in the shell, in which voltage is induced while passing through the magnetic field of the first coil, and the voltage is used to control the igniter over time. do. Along with this type of voltage generation in igniter systems, a source of power has the disadvantage of being provided for supplying a magnetic coil in the muzzle portion of the launch device. The magnetic coil and the terminal of the magnetic coil are in danger of being corroded by outgoing emission gas, and a contact problem may occur at the terminal due to vibration.

A device for generating an electrical ignition current in the igniter of the shell is known from DE-OS 27 06 168. The shell includes a permanent magnet ring and a portion of the yoke. The other part of the yoke includes many ferromagnetic rings disposed at the ends of the weapon barrel and placed between paramagnetic rings. The shell body is disposed in the cartridge case, and the magnetic field generated by the permanent magnet is shorted by the cartridge case. When the shot is fired, the weapon barrel shorts the magnetic field. Only when the shell passes so that the voltage is induced in the induction coil placed in the shell due to the change of the magnetic field, the arrangement of ferromagnetic rings is isolated and selectively open the magnetic field. The level of this voltage is due to many interruptions of the isolated magnetic field. In conjunction with known ignition systems, the permanent magnets necessary to generate the ignition current are contained within the shell itself. As a result, there is a risk that the igniter will operate with unexpected removal of the short circuit of the magnetic field. Moreover, as a result of the further transport of permanent magnets, the transport of useful rods, such as explosives, in shells is reduced.

The invention relates to a device for generating a magnetic field in a muzzle region of a launch device corresponding to the preamble of claim 1.

1 shows an arrangement of a permanent magnet in the muzzle portion of the launch device.

2 is a view in which one permanent magnet is disposed behind another permanent magnet when viewed in the shooting direction, showing the arrangement of three permanent magnets in the muzzle portion of the launch device.

3 is a view in which the permanent magnets are arranged with one permanent magnet behind another permanent magnet at different distances, showing the arrangement of three permanent magnets having different field strengths.

It is an object of the present invention to provide a simple and reliable device for generating a voltage in a missile guidance device during launch.

This object is achieved by the features of claim 1.

Useful improvements of the invention are claimed in the dependent claims.

As a result of the present invention, there is provided a sensitive electrical device in the muzzle portion of the launch device that supplies power to generate a magnetic field for the induction of voltage in the missile's guidance device for the provision of an electrically triggered primer and optional control circuitry. It is no longer necessary. At least one permanent magnet according to the present invention does not require any power source and can be embedded in a housing that constitutes a suitable material to prevent incoming exhaust gases.

At least one permanent magnet is preferably arranged around the firing channel in a ring shape. This results in the same configuration of magnetic field and the same effect of induction reaching the firing channel.

The magnetic fields of the permanent magnets are therefore not adversely affected from the outside or from each other, and preferably the permanent magnets are not embedded in the magnetizable material. The material can be, for example, a heat resistant rosin or plastic or a material that is free from magnetization. As described above, a complete sheath of the permanent magnet is provided so that it can be protected against each effect coming from the launch device.

The magnetic field strength generated by the permanent magnets or magnets is adjusted for power demand by the control circuitry of the igniter or missile, shell or rocket. Therefore, it is useful when one permanent magnet is disposed behind another permanent magnet when several permanent magnets are viewed in the shooting direction. The voltage induced in the induction device can be increased by multiple inductions in the coil.

It is useful when several permanent magnets with different magnetic field strengths are combined to induce the forward at any level in an intentional manner. The preferred order of field strength is achieved with the corresponding arrangement of permanent magnets.

Furthermore, the sequence of magnetic field strengths, and in each case the level of the induced voltage, can be used to deliver a signal to an igniter or control circuit as a continuation of each voltage of a variable level is induced, and corresponding electronics Guidance sequences, if present in shells or rockets, can be used as codes, for example, to adjust instantaneous ignition or flight duration or flight direction.

The order of derivation at different time intervals can be used as a signal. This signal order is usefully achieved when the magnets are arranged at specified distances from each other, and it is possible that these distances have different lengths.

The placement of permanent magnets at a specified distance is useful if the magnets are placed as far as possible in such a way that the magnetic fields do not adversely affect each other. Permanent magnets with magnetic fields of variable field strength and distance can be selected to adjust the magnetic field.

A further possibility of transmitting a signal to the shell's igniter and the rocket's control circuit is configured such that permanent magnets of different magnetic fields are arranged at different distances from each other. In this way the order of signals can be generated by a transiently variable order of induction combined with different intensities. A requirement for this is that the ignition system comprises an electronic circuit which generates a signal which is desirable for a particular case in terms of variable intensity and in terms of variable order of induction. In this way it is even possible to make a larger number of codings possible, for example, at the moment of ignition or in a limited adjustment of the control circuit. By a large number of inductions, the temporal spacing corresponding to the requirements referred to and the variable levels of induction voltages, three different items of information, if properly set up, are directed to the electronics or control circuitry of the igniter, such as the missile's guide system, etc. Can be delivered.

Preferred embodiments of the invention are described in more detail.

1 shows the weapon barrel 1 of the launch device. Only features for understanding the invention are shown and described above. The magnetic field generating device is arranged in the muzzle portion 2 of the firing device 1, and the magnetic field generating device is indicated as 3 as a whole. The device 3 comprises a housing 4 comprising a permanent magnet 5.

In the embodiment of the present invention, the permanent magnet 5 simultaneously forms a housing for the magnet and is completely enclosed by a non-magnetizing material 4 such as a heat-resistant plastic material 4 or the like which protects the permanent magnet from the ejecting gas in this manner. Wrapped.

The connection between the housing 4 and the firing barrel 1 is by means of a screw coupling 6. The housing 4 is screwed onto the muzzle 2 of the weapon barrel 1. The shell 7 is fired from the muzzle portion 2 of the weapon barrel 1. The inorganic barrel 1, the magnetic field 9 generating device 3 and the shell 7 are shown in cross section.

In an embodiment of the invention, the permanent magnet 5 surrounds the firing channel 8 in a ring manner. The generated magnetic field 9 has a specified magnetic field strength. The shell 7 travels through the firing duct 8 according to the invention, in the shooting direction 10 and through the device 3 with the permanent magnet 5. In this course, the induction device 11 of the igniter z of the shell 7, ie the annular coil 11 in the embodiment of the invention, moves through the magnetic field 9. By the change of the magnetic flux, a voltage is induced to the induction coil 11, and the voltage is determined by the movement of the specific magnetic field 9 and the shell 7. The induced voltage is supplied by the conductor 12 of the electronics 13 of the shell 7 and stored in the conductor in a suitable form, such as a capacitor 14, and prepared for ignition of the initial explosive 25. Moreover, the induced voltage can be used to determine instantaneous ignition by electronics, which is not seen in more detail herein. The use of induced voltages is not a major problem of the present invention and has already been properly disclosed from the cited prior art.

In the embodiment of FIG. 2, it can be seen that the firing device 1 for generating the magnetic field, the weapon barrel part comprises three permanent magnets 51, 52 and 53. The three permanent magnets 51, 52 and 53 are arranged with one permanent magnet behind the other permanent magnet when viewed in the shooting direction 10. The magnetic field strengths of the three magnets can be the same size but different sizes.

When the shell 7 moves continuously through the individual magnetic fields 91, 92 and 93 when viewed in the shooting direction 10, the voltage is induced three times in sequence in the induction device 11 of the shell 7. In this case, the voltage corresponds to the magnetic field strength. The total voltage available can be increased by proper switching of the coils.

In an embodiment of the invention, the electronics 13 of the shell 7 may additionally comprise a counting circuit 15 which can calculate the number of inductions, ie the number passing through the permanent magnets 91 to 93. . The counting circuit 15 can be used to make the information available for the number of inductions of the electronics 13 of the shell 7. For example, it can be used to specify the momentary lighting of the shell. In an embodiment of the invention, the housings 41, 42 and 43 of the permanent magnets 51 or 52 and 53 can be connected to each other by means of screw threads 16. The housings 41, 42, and 43 each have the same size as the distance 17 between the permanent magnet 51 and the permanent magnet 52 and the distance 18 between the permanent magnet 52 and the permanent magnet 53. It is formed in such a way.

The embodiment according to FIG. 3 shows as an apparatus 32 for generating a magnetic field, such as three permanent magnets intensively arranged with respect to the firing channel 8. Looking in the shooting direction 10, two additional permanent magnets 522 and 533 are connected to the permanent magnet 511. The permanent magnets have magnetic fields 922 and 933, respectively, and the magnetic field strengths are different from the magnetic field 911 of the permanent magnet 511. The magnetic field strengths of the magnetic fields 922 and 933 are different. Moreover, the distance 19 between the permanent magnet 511 and the permanent magnet 522 is greater than the distance 20 between the permanent magnet 522 and the permanent magnet 533.

The electronics 13 of the shell 7 comprise a storage 14 for power and a counting circuit 15 for the number of inductions occurring on the passage of the shell 7 through the magnetic fields 911, 922 and 933. do. In each case, various levels of voltage are induced into the passages through the individual magnetic fields having a level determined by the electronic circuit 24 and depending on the respective magnetic field strengths of the field. Moreover, the induction occurs at different time intervals that increase with the distances 19 and 20 between the individual permanent magnets 511, 522 and 533. For this reason, the electronic circuit 13 of the shell 7 additionally includes the circuit 21 by means of a temporary spacing which lies between the individual inductions, ie the continuous magnetic fields 911, 922 and 933. Between the individual passages of the induction device 11 through is determined.

Variable intensity of the magnetic field strength and therefore different levels of induced voltage and temporarily different intervals between inductions can be used for the transfer of information to the electronics 13 of the shell 7. In comparison with the preceding embodiment, the possibility of information transfer is substantially increased due to the variable strength of the magnetic field and the variable distance between the magnetic fields. In this way, different functions of the igniter z corresponding to the number of possible codings can be activated.

The housings 411 and 422 are connected to each other by screw threads 16. In the embodiment of the present invention, because the distance between the two permanent magnets 522 and 533 is short, each of the housings 422 and 433 has respective outer threads 23 and is connected to each other by a bushing 22. Because of the screw connection, the permanent magnets are easily exchanged for each other and other permanent magnets. Because of the different distances and couplings of the permanent magnets with different magnetic field strengths, it is possible in this way to induce respective voltages at any level of the induction device 11 of the shell 7 and to change the temporary strength of the induction. In this way it is possible to convey different items of information to the electronics 13 of the shell 7.

Claims (11)

A device for generating a magnetic field in the muzzle of the launch device, A device for inducing a voltage in an induction device of a missile that leaves the launch device when passing through the magnetic field to supply an igniter that is electrically triggered and functionally affects flight control circuitry. One or more permanent magnets 5; 51, 52, 53; 511, 522, 533 generate the muzzle portion of the launch device 1 to generate the magnetic field 9; 91, 92, 93; 911, 922, 933. And (2). 2. The launch duct (8) according to claim 1, characterized in that the at least one permanent magnet (5; 51, 52, 53; 511, 522, 533) surrounds the launch duct (8) in an annular manner at the part of the muzzle (2). Device. The non-magnetic material (4; 41, 42, 43; 411, 422, 433) of claim 1 or 2, wherein the one or more permanent magnets (5; 51, 52, 53; 511, 522, 533) A device, characterized in that it is embedded. 4. A permanent magnet according to any one of claims 1 to 3, characterized in that the permanent magnets (51, 52, 53; 511, 522, 533) are disposed behind the other permanent magnet when viewed in the shooting direction (10). Device. 5. Device according to claim 4, characterized in that the permanent magnets (51, 52, 53; 511, 522, 533) have magnetic fields (91, 92, 93; 911, 922, 933) with different magnetic field strengths. 6. Device according to claim 4 or 5, characterized in that the permanent magnets (51, 52, 53; 511, 522, 533) are arranged at specified distances (17, 18; 19, 20) from each other. 5. The induction according to claim 4, wherein the induction, which occurs on the basis of the number of permanent magnets (5; 51, 52, 53; 511, 522, 533) is based on the igniter z and functionally the electronics 13 of the control circuit of the missile 7. And can be used as a signal for delivery of an item of information. 6. The electronics (13) of the missile (7) according to claim 5, wherein the electronics (13) of the missile (7) comprise circuits (24) for determining respective levels of different induced voltages, The different level and order of levels of the induced voltage is used as a signal for conveying an item of information to the igniter (z) and to the electronics (13) of the control circuit of the missile (7). 7. The electronics (13) of the missile (7) has an electronic circuit (21) by determining the temporary spacing between inductions, A device characterized in that different temporary intervals between individual inductions are used as signals for the transfer of an item of information to the igniter (z) and to the electronics (13) of the control circuit of the missile (7). 10. A method according to any of claims 7 to 9, wherein the magnitude of the information conveyed to the igniter z and to the electronics 13 functionally of the control circuit of the missile 7 is determined by a combination of one or more claimed features. Device determined. The permanent magnet (5; 51, 52, 53; 511, 522, 533) is arranged in a replaceable manner in the muzzle portion (92) of the launch device (1). Device characterized in that.