US 11,936,273 B2
Stator and conductor connections for a planar motor
Rolf Brinkmann, Bad Salzuflen (DE); Uwe Prüssmeier, Lemgo (DE); and Lukas Bentfeld, Delbrück (DE)
Assigned to Beckhoff Automation GmbH, Verl (DE)
Filed by Beckhoff Automation GmbH, Verl (DE)
Filed on Dec. 14, 2020, as Appl. No. 17/121,219.
Application 17/121,219 is a continuation of application No. PCT/EP2019/068144, filed on Jul. 5, 2019.
Claims priority of application No. 10 2018 118 004.7 (DE), filed on Jul. 25, 2018.
Prior Publication US 2021/0099068 A1, Apr. 1, 2021
Int. Cl. H02K 3/28 (2006.01); H01F 27/28 (2006.01); H02K 3/47 (2006.01); H02K 41/03 (2006.01); H02P 25/06 (2016.01)
CPC H02K 41/031 (2013.01) [H01F 27/28 (2013.01); H02K 3/28 (2013.01); H02K 3/47 (2013.01); H02P 25/06 (2013.01); H02K 2201/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A stator assembly for driving a rotor of an electrical planar motor,
wherein the stator assembly comprises:
coil conductors arranged in a stator layer of the stator assembly,
wherein the coil conductors extend in an elongated manner a first direction and are arranged side by side in a second direction oriented perpendicularly with regard to the first direction,
wherein the coil conductors are connected on the stator assembly to form a three-phase system having a first phase U, a second phase V and a third phase W, and
wherein the coil conductors are configured as a first forward conductor and as a first return conductor of the first phase U connected in series with the first forward conductor, as a second forward conductor and as a second return conductor of the second phase V connected in series with the second forward conductor and as a third forward conductor and as a third return conductor of the third phase W connected in series with the third forward conductor;
wherein the three-phase system has a first side and a second side opposite to the first side,
wherein the first forward conductor and the first return conductor are electroconductively connected in series by a first horizontal connecting conductor arranged in the stator layer and at the second side of the three-phase system, and
wherein the second forward conductor and the second return conductor are electroconductively connected in series by a second horizontal connecting conductor arranged in the stator layer and at the first side of the three-phase system.