Electronically commutated dc motor, in particular for an oil pump

US9948154B2 · kind B2 · utility

Assignees

• Buhler Motor GmbH · DE
• MELECS EWS GmbH & Co. KG · AT
• Swoboda KG · DE

Inventors

• Ralph Böhm · Stockach, DE
• Georg Bernreuther · Nuremberg, DE
• Olaf Richter · Stein, DE
• Andreas Wall · Nürnberg, DE
• Leopold Hellinger · Ziersdorf, AT
• Gerhard Neumann · Waldkraiburg, DE
• Armin Koch · Uhingen, DE
• Peter Woschni · Kempten (Allgäu), DE

Key dates

• Filing date: Oct 2, 2015
• Grant date: Apr 17, 2018
• Expiry date: Oct 10, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K2211/03
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An electronically commutated DC motor has a stator wound with a multi-phase stator winding, a permanent magnet rotor mounted rotatably about a motor axis, a circuit board, a guide plate electrically connected to the winding and a housing component. In one implementation, a DC motor can easily be manufactured with the fewest possible process steps, which exhibits a short axial length and a low weight as well as good heat-dissipation properties. It is also an object of the invention to create a DC motor with integrated electronics, whose motor interior can be filled with oil, and which holds the electronics sealed against this oil. For reasons of logistics, an attempt is also made for partial components, such as the electronics, to be designed such that they are capable of complete prior assembly and testing.