US 12,266,985 B2
Axial flux motor with cooling jacket
Mikhail Goykhman, Reseda, CA (US); Galen Chui, Ladera Ranch, CA (US); and Armen Baronian, Toronto (CA)
Assigned to EATON INTELLIGENT POWER LIMITED, Dublin (IE)
Appl. No. 17/783,913
Filed by EATON INTELLIGENT POWER LIMITED, Dublin (IE)
PCT Filed Dec. 10, 2020, PCT No. PCT/EP2020/025570
§ 371(c)(1), (2) Date Jun. 9, 2022,
PCT Pub. No. WO2021/115632, PCT Pub. Date Jun. 17, 2021.
Claims priority of provisional application 62/946,172, filed on Dec. 10, 2019.
Prior Publication US 2023/0038386 A1, Feb. 9, 2023
Int. Cl. H02K 11/33 (2016.01); H02K 5/20 (2006.01); H02K 9/197 (2006.01); H02K 9/22 (2006.01)
CPC H02K 11/33 (2016.01) [H02K 5/203 (2021.01); H02K 9/197 (2013.01); H02K 9/223 (2021.01); H02K 2213/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric motor assembly comprising:
a) a motor shaft, a stator assembly, and a rotor assembly; and
b) a cooling jacket surrounding the stator assembly, the cooling jacket including:
(i) an inner wall facing radially inwardly towards the stator assembly and an opposite outer wall facing radially outwardly;
(ii) a circumferential internal fluid passageway for allowing a cooling fluid to be pumped through an interior of the cooling jacket, the internal fluid passageway being disposed between the inner and outer walls and extending between an inlet and an outlet;
(iii) a mounting pad defining an opening in the outer wall; and
(iv) a heat generating component associated with the motor assembly, the heat generating component being mounted to cover the opening such that the heat generating component is in direct fluid communication with the internal fluid passageway such that the cooling fluid can provide cooling to the heat generating component.