US 12,003,137 B2
Motor winding design for an electric motor
Andrew T. Beyerl, Pewaukee, WI (US); and Derek J. Schwab, Glendale, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Nov. 22, 2022, as Appl. No. 18/057,844.
Application 18/057,844 is a continuation of application No. 16/698,293, filed on Nov. 27, 2019, granted, now 11,515,743.
Claims priority of provisional application 62/772,934, filed on Nov. 29, 2018.
Prior Publication US 2023/0084485 A1, Mar. 16, 2023
Int. Cl. H02K 1/17 (2006.01); H02K 3/28 (2006.01); H02K 15/12 (2006.01)
CPC H02K 1/17 (2013.01) [H02K 3/28 (2013.01); H02K 15/12 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An electric motor comprising:
a stator assembly including
a lamination stack,
a printed circuit board assembly (PCBA) coupled to the lamination stack at an axial end of the stator assembly,
a plurality of windings wrapped about the lamination stack to form a plurality of coils, the plurality of windings comprising a first winding defining a first coil of the plurality of coils and a second coil of the plurality of coils located opposite from the first coil, and
a plurality of terminals configured to electrically connect the plurality of windings to the PCBA, the plurality of terminals comprising a first terminal and a second terminal;
wherein the first coil and the second coil are connected in parallel between the first terminal and the second terminal; and
wherein the PCBA is configured to supply a current to the first coil and the second coil.