US 11,750,062 B2
Drive device with circulating airflow
Waldemar Becker, Graben-Neudorf (DE); Domenik Hettel, Au am Rhein (DE); Thomas Rung, Flemlingen (DE); and Jens Schillinger, Rastatt (DE)
Assigned to SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Filed by SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Filed on Dec. 14, 2021, as Appl. No. 17/550,155.
Application 17/550,155 is a continuation of application No. 15/577,737, granted, now 11,201,520, previously published as PCT/EP2016/000570, filed on Apr. 7, 2016.
Claims priority of application No. 102015006688.9 (DE), filed on May 28, 2015.
Prior Publication US 2022/0103041 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02K 5/20 (2006.01); H02K 7/116 (2006.01); H02K 9/14 (2006.01); H02K 9/16 (2006.01); H02K 9/22 (2006.01)
CPC H02K 7/116 (2013.01) [H02K 5/207 (2021.01); H02K 9/14 (2013.01); H02K 9/16 (2013.01); H02K 9/227 (2021.01)] 22 Claims
OG exemplary drawing
 
1. A drive device, comprising:
a housing; and
a stator housing adapted to accommodate a stator of an electric motor, the stator housing including recesses that are axially uninterrupted, the stator housing being surrounded by the housing, the housing being set apart from the stator housing, such that an airflow is generatable within the housing, the recesses adapted to guide the airflow through in an axial direction, the airflow returnable in an opposite direction in a set-apart region between the stator housing part and the housing.