Igniter unit and munition

Patent metadata

Field	Value
Publication number	US-11460277-B2
Application number	US-201917289814-A
Country	US
Kind code	B2
Filing date	Sep 30, 2019
Priority date	Oct 30, 2018
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

The invention relates to an igniter unit for a munition, comprising a housing and at least one pyrotechnic charge, the igniter unit comprising a control and communication device arranged in the housing and at least one interface connected to the control and communication unit and arranged in the housing.

First claim

What is claimed is:

1. An igniter unit for a munition, comprising a housing and at least one pyrotechnic charge, wherein the igniter unit comprises a control and communication device arranged in the housing, at least one interface arranged on or in the housing and connected to the control and communication device, and a Zener diode connected to the control and communication device to form a communication connection, wherein the communication connection is a bidirectional single-wire connection and wherein the control and communication device is configured to operate in a single-wire communication mode below a breakdown voltage of the Zener diode.

2. The igniter unit according to claim 1 , wherein the igniter unit comprises a circuit board, wherein the circuit board is electrically connected to the interface, the control and communication device and the at least one pyrotechnic charge.

3. The igniter unit according to claim 2 , wherein the interface is an ignition contact.

4. The igniter unit according to claim 3 , wherein the Zener diode is connected to the circuit board, the control and communication device and the at least one pyrotechnic charge to form an ignition connection between the ignition contact and the at least one pyrotechnic charge above the breakdown voltage of the Zener diode.

5. The igniter unit according to claim 2 , wherein the Zener diode is connected to the circuit board, the control and communication device and the at least one pyrotechnic charge, and wherein the communication connection is formed between the interface and the control and communication device below the breakdown voltage of the Zener diode.

6. The igniter unit according to claim 2 , wherein the control and communication device, the circuit board, the Zener diode and at least part of the at least one pyrotechnic charge are encapsulated in the housing by a housing base.

7. The igniter unit according to claim 1 , wherein the interface is a wired interface.

8. The igniter unit according to claim 1 , wherein the igniter unit comprises additional contacts as an interface for communication with the control and communication device.

9. The igniter unit according to claim 1 , wherein the igniter unit comprises an additional interface for effectively charging the munition, via which information relevant to which function and effect can be exchanged.

10. A munition comprising the igniter unit according to claim 1 .

11. The munition according to claim 10 , wherein the munition is a decoy, deflector or camouflage body.

Assignees

• Rheinmetall Waffe Munition Gmbh

Inventors

• Kadavanich Vikorn
• Giebel Karl-Friedrich

Classifications

• F42B3/10

  Initiators therefor (percussion fuzes F42C7/00; percussion caps F42C19/10; electric primers F42C19/12) · CPC title

• F42B12/02

  characterised by the warhead or the intended effect · CPC title

• F42B35/00

  Testing or checking of ammunition {(apparatus for measuring the energy of projectiles G01L5/14)} · CPC title

• F42B5/15 Primary

  for creating a screening or decoy effect, e.g. using radar chaff or infrared material (infrared flares F42B4/26) · CPC title

• F42C11/001

  Electric circuits for fuzes characterised by the ammunition class or type (F42C11/02 - F42C11/06 take precedence; mechanical fuzes having electric igniters for hand grenades or marine warheads F42C14/025, F42C14/045) · CPC title