US 12,284,787 B2
Electric appliance having a housing part
Franz Daminger, Ludwigshafen am Rhein (DE); and Ralph Mayer, Ubstadt-Weiher (DE)
Assigned to SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Appl. No. 17/603,141
Filed by SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
PCT Filed Mar. 10, 2020, PCT No. PCT/EP2020/025120
§ 371(c)(1), (2) Date Oct. 12, 2021,
PCT Pub. No. WO2020/207621, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 102019002627.6 (DE), filed on Apr. 10, 2019.
Prior Publication US 2022/0201899 A1, Jun. 23, 2022
Int. Cl. H05K 7/20 (2006.01); H05K 5/04 (2006.01)
CPC H05K 7/20409 (2013.01) [H05K 5/04 (2013.01); H05K 7/209 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An electric appliance, comprising:
a housing part including a wall and two side walls; and
first cooling fins, second cooling fins, and third cooling fins premolded and/or provided on the housing part, each cooling fin extending along the wall and at least one of the side walls;
wherein each side wall includes a reinforced region of a wall thickness of the housing part arranged as a transverse bar connecting two cooling fins that are arranged closest to each other in a transverse direction relative to an extension direction of the cooling fins; and
wherein the wall thickness of the housing part in a region of a respective transverse bar is thinner than the wall thickness of the housing part in a region of the cooling fins that abuts the respective transverse bar and a height of each transverse bar measured from the side wall is less than a height of the cooling fins in the region of the cooling fins that abuts the respective transverse bar; and
wherein, along a length of the cooling fins along a length of the wall and along a length of the side walls, the wall thickness of the housing part between each pair of adjacent cooling fins is thinner than the wall thickness of the housing part along the cooling fins.