US 11,735,981 B2
Electrical machine with an integrated measurement printed circuit board
Marie-Luies Schoeneck, Grossbottwar (DE); Michael Mayer, Reutlingen (DE); Patrick Fruehauf, Besigheim (DE); and Wolfram Kienle, Magstadt (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Oct. 28, 2021, as Appl. No. 17/512,956.
Claims priority of application No. 102020213570.3 (DE), filed on Oct. 29, 2020.
Prior Publication US 2022/0140705 A1, May 5, 2022
Int. Cl. H02K 11/27 (2016.01); H02K 3/50 (2006.01); H02K 5/15 (2006.01)
CPC H02K 11/27 (2016.01) [H02K 3/50 (2013.01); H02K 5/15 (2013.01); H02K 2203/09 (2013.01); H02K 2211/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrical machine (1), comprising
an interconnection assembly (3) that creates contact for a stator (9) of the electrical machine (1),
a busbar (5a) that creates contact for the interconnection assembly (3),
a measurement printed circuit board (4) that is arranged perpendicularly to an axis of rotation of the electrical machine (1), on a side of the interconnection assembly (3) that is averted from the stator (9), wherein a field sensor (8a) is arranged on the measurement printed circuit board (4), and
a flux concentrator (7a) that engages around the busbar (5a) and the field sensor (8a),
wherein the flux concentrator (7a) comprises a U-shaped metal plate, wherein the measurement printed circuit board (4) lies in a plane, and wherein a section taken through the flux concentrator (7a) in the plane of the measurement printed circuit board is a U shape, such that the flux concentrator (7a) engages around the busbar (5a) and the field sensor (8a).