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1. (WO2017036549) AUTOMOTIVE AUXILIARY DEVICE WITH ELECTRIC DRIVE MOTOR

Pub. No.:    WO/2017/036549    International Application No.:    PCT/EP2015/070219
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 05 01:59:59 CEST 2015
IPC: H02K 29/08
Applicants: PIERBURG PUMP TECHNOLOGY GMBH
Inventors: SCHRÖDER, Viktor
WULF, Andreas
BÜRGER, Frank
MALVASI, Alessandro
Title: AUTOMOTIVE AUXILIARY DEVICE WITH ELECTRIC DRIVE MOTOR
Abstract:
Automotive auxiliary device (1) with a brushless and electronically commutated electric drive motor (2), the drive motor (2) comprising: •a rotatable motor rotor (3) defining a longitudinal rotor axis (10) and comprising a rotor shaft (31), a magnet carrier (32) and at least one permanent-magnet (33) which generates at least two rotor poles, •wherein the permanent-magnet (33) is fixed to the magnet carrier (32) and has an axial protruding portion (33a) which axially protrudes from at least one side of the magnet carrier (32), •a motor stator (4) comprising at least two stator coils (41) which are arranged radially around the motor rotor (3), •and at least one stator-sided hall-sensor (5) being a type of radial rotor detection sensor and being arranged in a free space (35) between the rotor shaft (31) and the permanent-magnet (33).