Electrical connectors and methods for using same
View Patent ↗An electrical connector for forming a mechanical and electrical coupling with an electrical conductor includes a tubular housing, at least one jaw member, a sealant containment membrane, and a sealant. The tubular housing has a connector axis. The housing defines a conductor receiving opening and an interior cavity each configured to receive the conductor along the connector axis. The at least one jaw member is configured to clamp the conductor within the interior cavity. The sealant containment membrane is disposed in the interior cavity and defines a sealant chamber. The sealant is contained in the sealant chamber in the interior cavity to environmentally protect an electrical contact engagement between the conductor and the electrical connector when the conductor is clamped in the interior cavity by the at least one jaw member.
1. An electrical connector for forming a mechanical and electrical coupling with an electrical conductor, the electrical connector comprising:
a tubular housing having a connector axis, the housing defining a conductor receiving opening and an interior cavity each configured to receive the conductor along the connector axis;
at least one jaw member;
a spring to force the at least one jaw member to clamp the conductor within the interior cavity; and
a trigger mechanism configured to retain the spring in a compressed position and, responsive to insertion of the conductor into the interior cavity through the conductor receiving opening, to collapse and permit the spring to decompress and force the at least one jaw member to clamp the conductor within the interior cavity;
wherein:
the trigger mechanism includes first and second retainer arms coupled to one another by a hinge connection; and
the trigger mechanism is collapsible by relatively pivoting the first and second retainer arms about the hinge connection.
2. The electrical connector of claim 1 wherein:
the trigger mechanism includes an actuator member coupled to the retainer arms and positioned to engage the conductor when the conductor is inserted into the interior cavity; and
the trigger mechanism is operative to collapse the first and second retainer arms about the hinge connection when the conductor displaces the actuator member.
3. The electrical connector of claim 1 wherein:
the spring defines a spring passage; and
when the spring decompresses and forces the at least one jaw member to clamp the conductor within the interior cavity and the trigger mechanism is collapsed, the collapsed trigger mechanism is received in the spring passage.
4. The electrical connector of claim 1 wherein the trigger mechanism includes a jaw retainer feature engaging the at least one jaw member to hold the at least one jaw member in place relative to the housing.
5. The electrical connector of claim 1 wherein a cable insertion force required to actuate the trigger mechanism to collapse and permit the spring to decompress and force the at least one jaw member to clamp the conductor is less than about 50% of a spring force of the spring in the compressed position.
6. The electrical connector of claim 1 wherein a cable insertion force required to actuate the trigger mechanism to collapse and permit the spring to decompress and force the at least one jaw member to clamp the conductor is less than about 25 pounds-force.
7. The electrical connector of claim 1 wherein:
the electrical connector is configured to clamp and electrically contact the first conductor within the interior cavity; and
the at least one jaw member includes electrical contact enhancing teeth configured to penetrate into an outer surface of the conductor to electrically couple the at least one jaw member to the conductor.
8. The electrical connector of claim 7 wherein the at least one jaw member further includes mechanical grip teeth configured to grip the outer surface of the conductor to support a conductor tension load from the conductor and thereby reduce or prevent application of the conductor tension load to the electrical contact enhancing teeth.
9. The electrical connector of claim 8 wherein the electrical contact enhancing teeth have a more aggressive profile than the mechanical grip teeth.
10. The electrical connector of claim 3 further including a trigger guide configured to guide the collapsed trigger mechanism into the spring passage.