Connection arrangement for supplying power to an electric motor

US8084903B2 · kind B2 · utility

Assignee

• Woidmueller Interface GmbH & Co. KG · DE

Inventors

• Andrea Goetze · Schlangen, DE
• Jens Oesterhaus · Detmold, DE
• Stefan Aporius · Detmold, DE
• Thorsten Beck · Mainburg, DE
• Wolfgang Schild · Herford, DE

Key dates

• Filing date: Mar 10, 2009
• Grant date: Dec 27, 2011
• Expiry date: Jan 6, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K5/225
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A connector arrangement is provided for supplying electric power to a three-phase motor to produce motor operation in either a delta mode or a star mode, use being made of modular units that are removably mounted within a chamber contained in an outer frame that is secured to the motor housing. A power supply module arranged within the chamber includes a main receptacle containing a stack of terminal blocks having bus bars that transmit to the motor windings three-phase power that is supplied either by external power supply lines that extend into the chamber though openings contained in the side walls of the outer frame, or from an inverter arranged externally of the outer frame. Auxiliary receptacles are removably connected with the external surface of the main receptacle for monitoring the operating condition of the motor, or for controlling a motor operation, such as braking.