US 12,266,970 B2
Electrical contacting of stator connections on pcb by crimp connection
Frank Schwamberger, Schleusingen (DE); Jakob Schnitzer, Hilburghausen (DE); and Conrad Nickel, Troistedt (DE)
Assigned to NIDEC GPM GMBH, Merbelsrod (DE)
Filed by NIDEC GPM GmbH, Auengrund OT Merbelsrod (DE)
Filed on Aug. 16, 2021, as Appl. No. 17/402,958.
Application 17/402,958 is a continuation in part of application No. PCT/EP2020/054896, filed on Feb. 25, 2020.
Claims priority of application No. 102019104705.6 (DE), filed on Feb. 25, 2019.
Prior Publication US 2021/0376669 A1, Dec. 2, 2021
Int. Cl. H02K 1/12 (2006.01); F04D 13/06 (2006.01); H02K 3/04 (2006.01); H02K 7/14 (2006.01); H02K 15/06 (2025.01)
CPC H02K 1/12 (2013.01) [F04D 13/0693 (2013.01); H02K 3/04 (2013.01); H02K 7/14 (2013.01); H02K 15/06 (2013.01); H02K 2203/03 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A pump, comprising:
an electric motor with a rotor rotatably about an axis of rotation and circumferentially surrounding a stator; wherein
the stator includes a stator core and coils wound on the stator core, the coils being defined by a winding wire with winding wire end sections which are electrically contacted with a printed circuit board by a crimp connection;
splice elements are on the printed circuit board, and each of the splice elements includes an opening permitting insertion of two winding wire end sections of one phase, the opening extending parallel or substantially parallel to a surface of the printed circuit board;
the winding wire end sections extend radially outward beyond an outer circumference of the stator core such that ends of the winding wire end sections do not overlap the stator core in a direction parallel to the axis of rotation; and
the openings of the splice elements are directed in a circumferential direction which is parallel or substantially in parallel to the surface of the circuit board.