EP 3072221 A2 20160928 - ELECTRIC MACHINE HAVING A SENSOR DEVICE FOR DETECTING THE ROTOR POSITION
Title (en)
ELECTRIC MACHINE HAVING A SENSOR DEVICE FOR DETECTING THE ROTOR POSITION
Title (de)
ELEKTRISCHE MASCHINE MIT EINER SENSOREINRICHTUNG ZUR ROTORLAGEERKENNUNG
Title (fr)
MACHINE ÉLECTRIQUE COMPORTANT UN DISPOSITIF DE DÉTECTION DE LA POSITION D'UN ROTOR
Publication
Application
Priority
- AT 507662013 A 20131119
- EP 2014074267 W 20141111
Abstract (en)
[origin: WO2015074914A2] The invention relates to an electric machine, in particular an electric motor, comprising a stator (6) and a rotor (5) and a stationary sensor device (1-4) for sensing the relative position between the stator and the rotor, wherein the sensor device comprises a flux-conducting element (3) and a magnetic sensor element (2) and the magnetic flux of a magnet revolving with the rotor (5) can be conducted to the sensor element (2) by means of the flux-conducting element, wherein the sensor element (2) is arranged at a distance from the rotor (5) and an air gap located between the sensor element (2) and the rotor (5) is bridged by the flux-conducting element, and wherein the sensor element (2) is arranged directly on a circuit board (1). According to the invention, the flux-conducting element is as simple to produce as possible, in that the flux-conducting element has a single ferromagnetic pin (3), which is arranged parallel to the axis of rotation of the rotor (5), wherein an end of the pin (3) is located in close proximity to the sensor element (2).
IPC 8 full level
H02K 11/215 (2016.01)
CPC (source: AT EP)
H02K 11/215 (2016.01 - AT EP); H02K 2211/03 (2013.01 - EP)
Citation (search report)
See references of WO 2015074914A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015074914 A2 20150528; WO 2015074914 A3 20160331; AT 515170 A2 20150615; AT 515170 A3 20180115; EP 3072221 A2 20160928
DOCDB simple family (application)
EP 2014074267 W 20141111; AT 507662013 A 20131119; EP 14801971 A 20141111