US 12,070,998 B2
Electric drive unit for a motor vehicle
Dominik Brunner, Berg TG (CH); and Urs Steiner, Bronschhofen (CH)
Assigned to BPW Bergische Achsen KG, Wiehl (DE)
Appl. No. 17/626,557
Filed by BPW Bergische Achsen KG, Wiehl (DE)
PCT Filed Jul. 7, 2020, PCT No. PCT/DE2020/100595
§ 371(c)(1), (2) Date Jan. 12, 2022,
PCT Pub. No. WO2021/008654, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 10 2019 118 967.5 (DE), filed on Jul. 12, 2019.
Prior Publication US 2022/0234438 A1, Jul. 28, 2022
Int. Cl. F16H 57/04 (2010.01); B60K 11/02 (2006.01); B60K 17/04 (2006.01); B60K 1/00 (2006.01)
CPC B60K 11/02 (2013.01) [B60K 17/046 (2013.01); F16H 57/0409 (2013.01); F16H 57/0412 (2013.01); B60K 2001/001 (2013.01); B60K 2001/006 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric drive unit for a motor vehicle, comprising:
an electric drive (5);
a transmission housing (4) comprising a housing shell (11), annularly surrounding a central axis (A) of the electric drive unit, and further comprising an end wall (13) comprising an opening (17) and extending radially outwardly from the opening (17) as far as a connecting region (14) of the end wall (13), wherein the end wall (13) and the housing shell (11) are connected to each other at the connecting region (14);
a transmission (6) arranged in an interior of the transmission housing (4) and connected to the electric drive (5) downstream in a power flow direction, wherein the transmission (6) comprises a rotatably arranged input or output shaft (19, 18) extending through the opening (17) of the end wall (13) of the transmission housing (4);
means for circulating a cooling liquid in the interior (7) of the transmission housing (4);
an annular chamber (33) extending in a circumferential direction along the connecting region (14) and connected to the interior (7) of the transmission housing (4) via individual openings (40).