US 12,068,649 B2
Electrical machine with improved electrical connection cooling
Andreas Ruppert, Bühlertal (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/629,869
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Jun. 23, 2020, PCT No. PCT/DE2020/100530
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/018337, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 10 2019 120 412.7 (DE), filed on Jul. 29, 2019; and application No. 10 2019 121 187.5 (DE), filed on Aug. 6, 2019.
Prior Publication US 2022/0278578 A1, Sep. 1, 2022
Int. Cl. H02K 3/24 (2006.01); H02K 3/50 (2006.01); H02K 5/20 (2006.01); H02K 9/193 (2006.01)
CPC H02K 3/24 (2013.01) [H02K 3/50 (2013.01); H02K 5/20 (2013.01); H02K 9/193 (2013.01); H02K 2203/09 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electrical machine, comprising: a machine housing containing a stator, which has a winding comprising a plurality of conductors associated with one or more phases that are interconnected; and a power connection, arranged outside the winding and having a plurality of line portions corresponding to a number of phases, wherein the line portions are connected to the conductors and are connected to phase connections, the line portions being at least partly accommodated in a connection housing having a cavity through which the line portions extend, wherein the cavity communicates, after the connection housing has been inserted into the machine housing, with a coolant channel, such that a coolant flowing in the coolant channel flows through the cavity, wherein a receiving space for the connection housing is formed in the machine housing, wherein the coolant channel opens into the receiving space with an inlet and an outlet, and wherein an inlet and an outlet of the cavity of the connection housing communicate with the coolant channel after insertion into the receiving space.