US 11,855,513 B2
Electric drive having an electrical connection including a sleeve
Harald Merz, Sinzheim (DE); and Harold Bitzer, Buehl (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/042,321
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Mar. 28, 2019, PCT No. PCT/EP2019/057878
§ 371(c)(1), (2) Date Sep. 28, 2020,
PCT Pub. No. WO2019/185807, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 10 2018 204 790.1 (DE), filed on Mar. 28, 2018.
Prior Publication US 2021/0083549 A1, Mar. 18, 2021
Int. Cl. H02K 5/10 (2006.01); H02K 5/22 (2006.01)
CPC H02K 5/225 (2013.01) [H02K 5/10 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electric drive (10) comprising
an electric connection (22),
a housing (12) having a housing interior (14), and
a drive device (16) arranged in the housing interior,
wherein the electric connection (22) has at least one electric line (41) contacting the drive device (16), wherein a housing opening (20) for the passage of the electric line (41) is formed on the housing (12) and a seal (24) is arranged in a region of the housing opening (20), wherein the electric line (41) has a first section (50) and a second section (52), wherein the first section (50) has a conductor (44) and a sheath (48) enclosing the conductor (44), and the second section (52) forms an exposed conductor (44), and wherein the electric connection (22) has a sleeve-like element (42) in which the second section (52) is at least partially arranged, characterized in that the sleeve-like element (42) is connected to the second section (52) in a fluid-tight fashion and the seal (24) bears at least partially on the sleeve-like element (42) and the electric connection (22) is fluid-tight with respect to the housing interior (14) in a region of the sleeve-like element (42) in a direction of extent (54) of the sleeve-like element (42),
wherein the sleeve-like element (42) is open on both sides such that the conductor (44) passes entirely through the sleeve-like element (42) and into the housing interior (14),
wherein the conductor (44) has a plurality of strands (46), and
wherein the strands (46) and the sleeve-like element (42) are configured in fluid-tight fashion and tin-plated by means of solder (57).