Title:
自動車用電動式流体ポンプ
Document Type and Number:
Japanese Patent JP6626212
Kind Code:
B2
Abstract:
An automotive electric fluidic pump includes a brushless and electronically commutated electric drive motor. The electric drive motor includes a permanent-magnetic motor rotor which rotates around a rotation axis and includes rotor poles, stator-sided electro-magnetic coils, a printed circuit board with openings, at least two stator-sided Hall sensors arranged on a proximal side of the printed circuit board to face the permanent-magnetic motor rotor, and a ferromagnetic back iron member arranged at a distal side of the printed circuit board to provide a direct magnetic coupling of the Hall sensors with each other. The Hall sensors are arranged eccentrically to detect axial magnetic fields of the rotor poles. The ferromagnetic back iron member comprises axial protrusions. An axial protrusion extends into an opening of the printed circuit board. Each axial protrusion faces a Hall sensor.
Inventors:
Burger, frank
Schumacher, Martin
Michael Hase
Halz, halald
Schrader, Victor
Malvage, Alessandro
Bruch, Andreas
Schumacher, Martin
Michael Hase
Halz, halald
Schrader, Victor
Malvage, Alessandro
Bruch, Andreas
Application Number:
JP2018535122A
Publication Date:
December 25, 2019
Filing Date:
January 13, 2016
Export Citation:
Assignee:
Pierburg Pump Technology GmbH
International Classes:
H02K29/08; H02K7/14; H02K11/215
Domestic Patent References:
| JP2001506368A | ||||
| JP56156378U | ||||
| JP60135041U | ||||
| JP2011128028A |
Foreign References:
| EP2701291A1 |
Attorney, Agent or Firm:
Patent Corporation Nagato & Partners