Plug-and-socket connector with screw-type connection

US7585193B2 · kind B2 · utility

Assignee

• LAPP ENGINEERING AG · CH

Inventors

• Bernd Hagmann · Geislingen, DE
• Johann Krech · Horb am Neckar, DE

Key dates

• Filing date: Jul 2, 2008
• Grant date: Sep 8, 2009
• Expiry date: Jul 2, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01R13/53
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An improved electrical plug-and-socket connectors with screw-type clamping connections has a step-shaped screw brake for protecting against loss of the clamping screw of connecting stranded conductors of electrical components having as the clamping mode a screw-type clamping connection. The screw brake has one, two or more strips. The plug-and-socket connector has a screw-type connection, having an insulating part, arranged to accommodate at least one contact insert. The contact insert has a substantially cylindrical shape and comprises a contact portion for electrical/mechanical connection to an oppositely shaped contact piece of a matched plug-and-socket connector at a first end of the contact insert. It further comprises an insertion opening for at least one connecting stranded conductor at a second end of the contact insert, there opening in the insertion opening a screw hole which is oriented substantially transversely relative to the central longitudinal axis thereof and comprises an internal thread. The insulating part has a screw channel which is substantially in alignment with the screw hole when a contact insert is accommodated in the insulating part. The screw channel ha…