Electrical connector and squib connection device

Patent metadata

Field	Value
Publication number	US-9147971-B2
Application number	US-201414317093-A
Country	US
Kind code	B2
Filing date	Jun 27, 2014
Priority date	Jul 1, 2013
Publication date	Sep 29, 2015
Grant date	Sep 29, 2015

Abstract

In an electrical connector, in a state in which an abutting portion of a support is abutted against a receiving face of a retainer or an inflator housing, if the connector housing is pressed toward the mating side and then released before being inserted into the retainer to a predetermined depth, then the connector housing is pressed back in the counter mating direction due to restoring force generated in the support. If the connector housing is pressed toward the mating side and inserted into the retainer to the predetermined depth, the abutting portion becomes displaced in the abutment cancelation direction so as to separate from the receiving face, and thus the connector housing is inserted into the retainer to the predetermined depth or more so as to be mated to the retainer, and electrical terminals become connected to squib terminals. Also, a squib connection device includes this electrical connector.

First claim

The invention claimed is:

1. An electrical connector for mating to a partner device that has an inflator housing provided with a socket that is recessed toward a counter mating side from a surface on a mating side, a squib provided on the counter mating side of the inflator housing such that a squib terminal rises up toward the mating side from a bottom portion of the socket, and a retainer that is attached to the socket, the electrical connector comprising:
a connector housing for mating to the retainer;
an electrical terminal that is provided in the connector housing and is for coming into contact with the squib terminal; and
a support that is provided with, on an end portion on the mating side, an abutting portion that is displaced relative to the connector housing in the counter mating direction and an abutment cancelation direction intersecting a mating direction when pressed in the counter mating direction, and generates restoring force due to the displacement of the abutting portion,
wherein in a state in which the abutting portion of the support is abutted against a receiving face of the retainer or the inflator housing whose edge descends toward the counter mating side, if the connector housing is pressed toward the mating side and then released before being inserted into the retainer to a predetermined depth, the connector housing is pressed back in the counter mating direction due to restoring force generated in the support, and if the connector housing is pressed toward the mating side and inserted into the retainer to the predetermined depth, the abutting portion becomes displaced in the abutment cancelation direction so as to separate from the receiving face, and thus the connector housing is inserted into the retainer to the predetermined depth or more so as to be mated to the retainer, and the electrical terminal becomes connected to the squib terminal.

2. The electrical connector according to claim 1 ,
wherein a flexible lock arm extends from the connector housing in the counter mating direction or the mating direction,
wherein the lock arm is provided with a projection portion that, as the connector housing is fitted to the retainer, rides over a wall of the socket or the retainer and then engages with a step portion of the socket or the retainer, and that moves away from the step portion when the lock arm undergoes flexure, and
wherein when the connector housing is mated to the retainer, the projection portion engages with the step portion.

3. The electrical connector according to claim 1 ,
wherein in a state where the connector housing is mated to the retainer, if the connector housing is pulled toward the counter mating side, the abutting portion of the support rides over the edge of the receiving face and then rides over the receiving face and abuts against the receiving face due to restoring force of the support.

4. The electrical connector according to claim 3 ,
wherein a flexible lock arm extends from the connector housing in the counter mating direction or the mating direction,
wherein the lock arm is provided with a projection portion that, as the connector housing is fitted to the retainer, rides over a wall of the socket or the retainer and then engages with a step portion of the socket or the retainer, and that moves away from the step portion when the lock arm undergoes flexure, and
wherein when the connector housing is mated to the retainer, the projection portion engages with the step portion.

5. The electrical connector according to claim 1 ,
wherein in a state where the abutting portion of the support is abutted against the receiving face, if the connector housing is not pressed toward the mating side, the electrical terminal is not in contact with the squib terminal.

6. The electrical connector according to claim 5 ,
wherein in a state where the connector housing is mated to the retainer, if the connector housing is pulled toward the counter mating side, the abutting portion of the support rides over the edge of the receiving face and then rides over the receiving face and abuts against the receiving face due to restoring force of the support.

7. The electrical connector according to claim 6 ,
wherein a flexible lock arm extends from the connector housing in the counter mating direction or the mating direction,
wherein the lock arm is provided with a projection portion that, as the connector housing is fitted to the retainer, rides over a wall of the socket or the retainer and then engages with a step portion of the socket or the retainer, and that moves away from the step portion when the lock arm undergoes flexure, and
wherein when the connector housing is mated to the retainer, the projection portion engages with the step portion.

8. The electrical connector according to claim 5 ,
wherein a flexible lock arm extends from the connector housing in the counter mating direction or the mating direction,
wherein the lock arm is provided with a projection portion that, as the connector housing is fitted to the retainer, rides over a wall of the socket or the retainer and then engages with a step portion of the socket or the retainer, and that moves away from the step portion when the lock arm undergoes flexure, and
wherein when the connector housing is mated to the retainer, the projection portion engages with the step portion.

9. A squib connection device comprising:
a partner device that has an inflator housing provided with a socket that is recessed toward a counter mating side from a surface on a mating side, a squib provided on the counter mating side of the inflator housing such that a squib terminal rises up toward the mating side from a bottom portion of the socket, and a retainer that is attached to the socket; and
an electrical connector for mating to the partner device,
wherein the electrical connector comprises:
a connector housing for mating to the retainer;
an electrical terminal that is provided in the connector housing and is for coming into contact with the squib terminal; and
a support that is provided with, on an end portion on the mating side, an abutting portion that is displaced relative to the connector housing in the counter mating direction and an abutment cancelation direction intersecting a mating direction when pressed in the counter mating direction, and generates restoring force due to the displacement of the abutting portion, and
in a state in which the abutting portion of the support is abutted against a receiving face of the retainer or the inflator housing whose edge descends toward the counter mating side, if the connector housing is pressed toward the mating side and then released before being inserted into the retainer to a predetermined depth, the connector housing is pressed back in the counter mating direction due to restoring force generated in the support, and if the connector housing is pressed toward the mating side and inserted into the retainer to the predetermined depth, the abutting portion becomes displaced in the abutment cancelation direction so as to separate from the receiving face, and thus the connector housing is inserted into the retainer to the predetermined depth or more so as to be mated to the retainer, and the electrical terminal becomes connected to the squib terminal.

Assignees

• Jst Mfg Co Ltd

Inventors

• Osada Tsuyoshi
• Matsumoto Hiroyuki
• Yasuda Munetaka

Classifications

• H01R13/6273

  comprising two latching arms · CPC title

• H01R13/639 Primary

  Additional means for holding or locking coupling parts together, after engagement, {e.g. separate keylock, retainer strap} · CPC title

• H01R13/64 Primary

  Means for preventing incorrect coupling · CPC title

• H01R13/641

  by indicating incorrect coupling; by indicating correct or full engagement · CPC title

• H01R24/00

  Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure (contact members H01R13/02; securing contact members in or to a base or case or insulating of contact members H01R13/40; bases or cases H01R13/46; means for supporting coupling part when not engaged H01R13/60; means for facilitating engagement or disengagement of coupling parts or for holding them in engagement H01R13/62; means for preventing, inhibiting or avoiding incorrect coupling H01R13/64) · CPC title