Electronic ignition unit for a stun grenade and stun grenade

Abstract

The invention relates to an electronic ignition unit for a stun grenade, comprising at least one energy source, at least one igniter, at least one control device, wherein the electronic ignition device further comprises an igniter driver connected to the at least one energy source and to the at least one control device.

Claims

1. An electronic ignition unit for a stun grenade, the electronic ignition unit comprising: at least one energy source; at least two igniters; at least one control device; and an igniter driver connected to the at least one energy source and to the at least one control device, the igniter driver configured to transmit power from the at least one energy source to each igniter of the at least two igniters; wherein said each igniter is connected to the igniter driver via its own channel, and wherein the control device is configured to control said each igniter separately via the igniter driver.

2. The electronic ignition unit according to claim 1, wherein the at least one control device is configured to control an ignition time of the at least two igniters.

3. The electronic ignition unit according to claim 1, wherein the at least one control device is configured to control ignition times of the respective igniters individually.

4. The electronic ignition unit according to claim 1, further comprising at least one radio interface connected to the at least one control device, wherein the at least one control device is configured to trigger one of the at least two igniters immediately or with a delay in response to a signal received from the radio interface.

5. The electronic ignition unit according to claim 1, further comprising at least one radio interface connected to the at least one control device, wherein the at least one control device is configured to trigger the at least two igniters immediately and/or with a delay in response to a signal received from the radio interface.

6. The electronic ignition unit according to claim 1, further comprising at least one sensor connected to the at least one control device, wherein the at least one control device is configured to trigger one of the at least two igniters immediately or with a delay in response to a state or value detected by the sensor.

7. The electronic ignition unit according to claim 1, further comprising at least one sensor connected to the at least one control device, wherein the at least one control device is configured to trigger the at least two igniters immediately and/or with a delay in response to a state or value detected by the sensor.

8. The electronic ignition unit according to claim 1, further comprising at least one position detection device, wherein the at least one control device is configured to trigger one of the at least two igniters immediately or with a delay when a specific position is reached.

9. The electronic ignition unit according to claim 1, further comprising at least one position detection device, wherein the at least one control device is configured to trigger the at least two igniters immediately and/or with a delay when a specific position is reached.

10. A stun grenade comprising an electronic ignition unit according to claim 1.

11. The stun grenade according to claim 10, wherein the stun grenade has at least one pyrotechnic charge, each igniter being assigned to a pyrotechnic charge in each case, and/or the at least one pyrotechnic charge being flash and/or explosion sound charges.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is to be explained below by way of example based on embodiments with reference to the drawings.

(2) In the drawings:

(3) FIG. 1 is a schematic representation of an electronic ignition unit according to the invention in accordance with one embodiment;

(4) FIG. 2 is a schematic representation of an electronic ignition unit according to the invention in accordance with one further embodiment; and

(5) FIG. 3 is a schematic representation of the control of the electronic ignition unit according to FIG. 1 and according to FIG. 2;

(6) FIG. 4 is a schematic representation of an ignition sequence of the ignition unit according to the invention;

(7) FIG. 5 is a further schematic representation of an ignition sequence of the ignition unit according to the invention; and

(8) FIG. 6 is a schematic representation of a system which comprises at least one stun grenade according to the invention.

DETAILED DESCRIPTION

(9) FIG. 1 shows an electronic ignition unit 10 for a stun grenade. The ignition unit 10 comprises at least one energy source 201, 202, 20n. In the embodiment shown in FIG. 1, these are three energy sources 201, 202, 20n. However, the number of energy sources 201, 202, 20n can also be different from three. In the case of the energy sources 201, 202, 20n shown in FIG. 1, it is an energy store such as supercapacitors (ultracaps) for providing an energy store with high power densities or batteries, such as a LiSOCl battery for providing energy stores with high energy densities. At least one igniter driver 30 is connected to the at least one energy source 201, 202, 20n.

(10) The electronic ignition unit 10 further comprises at least two igniters 701, 702, 70n which are each assigned to a pyrotechnic charge. The igniters 701, 702, 70n are used to trigger or ignite the pyrotechnic charge.

(11) The electronic ignition unit 10 also has a control device 60. According to one embodiment, the control device 60 is preferably designed as a microcontroller on a printed circuit board.

(12) Furthermore, the electronic ignition unit 10 has at least one igniter driver 30. The igniter driver 30 is connected to the control device 60 and is controlled by the control device 60. The igniter driver 30 also has a plurality of channels 751, 752, 75n. This number of channels 751, 752, 75n preferably corresponds to the number of igniters 701, 702, 70n so that the igniters 701, 702, 70n are connected in each case to the igniter driver 30 via its own channel 751, 752, 75n.

(13) The control device 60 is configured to control the igniter 701, 702, 70n separately via the igniter driver 30. The control device 60 is configured to control the ignition times of the respective igniters 701, 702, 70n individually.

(14) According to the embodiment shown in FIG. 1, the electronic ignition unit 10 has at least one radio interface 80 operationally connected to the control device and the control device 60 is configured to trigger the igniter 701, 702, 70n immediately or with a delay via the igniter driver in response to a signal received from the radio interface 80.

(15) In one embodiment, it can also be provided that the electronic ignition unit 10 has at least one position detection device 90 and at least one sensor 100. The sensor 100 is a sensor 100 that is operationally connected to the control device 60, and the control device 60 is configured to trigger the igniter 701, 702, 70n either immediately or with a delay in response to a state or value detected by the sensor 100. The position detection device 90 is also operationally connected to the control device 60. The control device 60 is configured to be triggered immediately or with a delay with one or more igniters 701, 702, 70n when a specific position is reached.

(16) The embodiment shown in FIG. 1 shows an electronic ignition unit which can be integrated into the stun grenade.

(17) The embodiment of the electronic ignition unit 10 shown in FIG. 2 is a configuration which can be attached to the underside of a stun grenade as an attachment variant or as a screw-on variant. Accordingly, additional electronic modules can be formed on the underside of the electronic ignition unit, as described below. However, the embodiment shown in FIG. 2 substantially corresponds to the embodiment according to FIG. 1, only the differences between the two embodiments being presented below.

(18) According to the embodiment shown in FIG. 2, the electronic ignition unit 10 has at least one energy source. In the embodiment shown in FIG. 1, these are four energy sources 201, 202, 203, 20n. However, the number of energy sources 201, 202, 203, 20n can also be different from four.

(19) The control device 60 is formed on a separate circuit board. The electronic ignition unit 10 further comprises a radio interface 80 which is formed on a separate circuit board. In addition, the electronic ignition unit 10 has at least one position detection device 90. Furthermore, the electronic ignition unit 10 has at least one sensor 100 which is formed on a separate circuit board.

(20) FIG. 3 shows again schematically the structure of the above-described embodiments of the electronic ignition unit 10. The electronic ignition unit 10 has a control device 60 at least one energy source 201 . . . n, an igniter driver 30, and preferably an interface 50. The interface 50 can, for example, be designed to be connected via cables. The at least one energy source 201 . . . n is connected to the interface 50 of the control device in order to supply it with energy. Furthermore, the at least one energy source 201 . . . n is connected to the igniter driver 30 in order to supply it with energy and to transmit energy to the igniter via the individual channels 751 . . . n. The control device 60 is operationally connected to the igniter driver 30 in order to control the latter. Furthermore, the control device 60 is operationally connected to an interface 50.

(21) As already stated above, the control device 60 is configured to control the igniter 701, 702, 70n separately via the igniter driver 30. This allows for the individual igniters 701, 702, 70n to implement specific ignition sequences. Two of these ignition sequences are shown by way of example in FIGS. 4 and 5.

(22) FIG. 4 shows a synchronous ignition of two igniters 701, 702, via the channels 751 and 752. The ignition of the two channels 751 and 752 takes place at a common point in time t1. This can cause a particularly strong stun event, for example, or different pyrotechnic charges can be ignited at the same time, which have different effects.

(23) FIG. 5 shows a sequential ignition of four igniters 701, 702, 703, 704 via four channels 751, 752, 753, 754. The four channels 751, 752, 753, 754 are ignited at different times t1, t2, t3, t4. In this way, for example, a particularly long-lasting stun event can be caused in which the individual pyrotechnic charges are ignited in sequence with a delay, in succession, or one after the other.

(24) FIG. 6 shows a system 200 comprising at least one stun grenade 1. The system further comprises at least one terminal 250. The terminal 250 is configured to communicate with the electronic ignition unit 10 of each stun grenade 1 via the interface 50 and/or the radio interface 80. The control device 60 of each electronic ignition unit 10 of each stun grenade 1 can be programmed via the terminal 250. The control device 60 of each electronic ignition unit 10 of each stun grenade 1 can be controlled via the terminal 250 in order to trigger, immediately and/or with a delay, the at least one pyrotechnic charge of the at least one stun grenade 1 individually or in combination with other stun grenades 1.

(25) Although the above description of the drawings describes an electronic ignition unit, this disclosure also expressly relates to a stun grenade which comprises such an ignition unit as disclosed in all of the embodiments described above.

LIST OF REFERENCE SIGNS

(26) 1 Stun grenade 10 Ignition unit 201, 202, 20n Energy source 30 Igniter driver 50 Interface 60 Control device 70 Igniter 80 Radio interface 90 Sensors 100 Position detection 200 System 250 Terminal