Gas generator with integrated electrical plug

• US 20070001440A1
• Filed: 06/15/2006
• Published: 01/04/2007
• Est. Priority Date: 06/15/2005
• Status: Abandoned Application

• Current Assignee: Indet Safety Systems AS (Nippon Kayaku Company Limited)
• Original Assignee: Hirschmann Automation & Control GmbH (Belden Inc.)
• Inventors: Schmid, Gunther, Mahr, Manfred
• Application Number:
  US11/453,570
• Publication Number:
  US 20070001440A1
• Time in Patent Office: Days
• US Class Current: 280/741
• CPC Class Codes: B60R 21/017 including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
• CPC Class Codes: B60R 21/2644 using only solid reacting substances, e.g. pellets, powder
• CPC Class Codes: B60R 22/4628 characterised by fluid actuators, e.g. pyrotechnic gas generators actuating a cable B60R22/4619
• CPC Class Codes: F42B 3/103 Mounting initiator heads in initiators; Sealing-plugs
• CPC Class Codes: H01R 13/64 Means for preventing incorrect coupling
• CPC Class Codes: H01R 13/7032 making use of a separate bridging element directly cooperating with the terminals
• CPC Class Codes: H01R 2201/26 for vehicles
• CPC Class Codes: H01R 33/06 with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other

Abstract

A gas generator has a housing extending along an axis and having a front end and a rear end, a propellant charge in the front end of the housing, and an electrically firable igniter in the housing adjacent the charge. An end fitting fitted to the rear end of the housing is formed as a plug. Electrical contacts exposed at the end fitting and extending therethrough are connected to the igniter.

Claims

1. A gas generator comprising:

a housing extending along an axis and having a front end and a rear end;

a propellant charge in the front end of the housing;

an electrically firable igniter in the housing adjacent the charge;

an end fitting fitted to the rear end of the housing and formed as a plug; and

electrical contacts exposed at the end fitting, extending therethrough, and connected to the igniter.

2. The gas generator defined in claim 1 wherein the end fitting forming an axial extension of the housing.

3. The gas generator defined in claim 1 wherein the end fitting has a coding.

4. The gas generator defined in claim 1 wherein the end fitting is formed with a snap connection for a plug.

5. The gas generator defined in claim 1 wherein the end fitting is provided with a shorting bridge engageable with the contacts.

6. The gas generator defined in claim 1 wherein at least an outer portion of the fitting is of plastic.

7. The gas generator defined in claim 1 wherein the plastic is duroplast.

8. The gas generator defined in claim 1 further comprising

formations forming a snap connection between the fitting and the housing.

9. The gas generator defined in claim 1 wherein the end fitting is force-fitted to the housing.

10. The gas generator defined in claim 1 wherein the end fitting is molded to the housing.

11. The gas generator defined in claim 1 wherein the fitting has a radially projecting rim axially buttable against a mounting formation.

12. The gas generator defined in claim 1 wherein the fitting has a collar fitted to the housing and spreadable on firing of the igniter to tightly grip and block against the housing.