Ignition safety device for rocket motor

Patent metadata

Field	Value
Publication number	US-10378482-B2
Application number	US-201816132856-A
Country	US
Kind code	B2
Filing date	Sep 17, 2018
Priority date	Oct 20, 2017
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

Provided is an ignition safety device for a rocket motor. The device includes an ignition circuit part including a main body and a control unit configured to generate an initiation signal on the basis of a specific signal, and an initiation part mounted at one end of the ignition circuit part and including at least one high voltage initiator electrically connected to the ignition circuit part. The initiation part includes a housing having at least one reception space for receiving the at least one high voltage initiator, and the housing and the main body are coupled by welding.

First claim

What is claimed is:

1. An ignition safety device for a rocket motor, the ignition safety device comprising:
an ignition circuit part comprising a main body and a control unit configured to generate an initiation signal on the basis of a predetermined signal and configured to be accommodated in the main body; and
an initiation part mounted at one end of the ignition circuit part and comprising a plurality of high voltage initiators electrically connected to the ignition circuit part,
wherein the plurality of high voltage initiators each comprise a sleeve assembly that houses a gunpowder therein and forms a body of a high voltage igniter and an explosion assembly configured to ignite the gunpowder by the initiation signal,
wherein the initiation part comprises a housing having a plurality of reception spaces for receiving the plurality of high voltage initiators, respectively,
wherein the housing is coupled at one end of the main body,
wherein the high voltage initiators are received at one end of the housing coupled to the main body, and
wherein the housing further comprises a plurality of inner holes corresponding to the high voltage initiators, respectively.

2. The ignition safety device of claim 1 , further comprising an O-ring inserted between the high voltage initiators and the reception space of the housing to prevent fluid movement,
wherein a recess area for inserting the O-ring is disposed at an outer surface of the high voltage initiator.

3. The ignition safety device of claim 1 , wherein the plurality of reception spaces are disposed apart from each other to separately store the plurality of high voltage initiators.

4. The ignition safety device of claim 1 , wherein the housing is formed of aluminum (AI).

Assignees

• Agency Defense Dev

Inventors

• HWANG Jungmin
• Jang Seunggyo

Classifications

• F02K9/38 Primary

  Safety devices, e.g. to prevent accidental ignition · CPC title

• F02K9/95

  characterised by starting or ignition means or arrangements (safety devices F02K9/38) · CPC title