US 12,074,497 B2
Liquid cooled motor enclosure, liquid cooled motor, vehicle including liquid cooled motor, and method for cooling a motor
Ryan Biffard, Kelowna (CA); Eddie Smith, Scotts Valley, CA (US); and Brian Wismann, Felton, CA (US)
Assigned to ZERO MOTORCYCLES, INC., Scotts Valley, CA (US)
Filed by Zero Motorcycles, Inc., Scotts Valley, CA (US)
Filed on Dec. 16, 2021, as Appl. No. 17/553,625.
Prior Publication US 2023/0198334 A1, Jun. 22, 2023
Int. Cl. H02K 5/20 (2006.01); B60K 1/04 (2019.01); H02K 9/19 (2006.01); H02K 11/00 (2016.01); B60K 1/00 (2006.01)
CPC H02K 5/203 (2021.01) [B60K 1/04 (2013.01); H02K 9/19 (2013.01); H02K 11/0094 (2013.01); B60K 2001/006 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A liquid cooled motor enclosure, comprising:
an outer shell;
an inner shell connected to the outer shell, a fluid tight space being formed between the inner shell and the outer shell, the inner shell having a recess adapted to receive a motor therein, the inner shell being adapted to thermally couple to the motor;
an inlet manifold arranged proximate to a first axial end of the inner shell and/or the outer shell; and
an outlet manifold arranged proximate to a second axial end of the inner shell and/or the outer shell opposite the first axial end;
wherein the inner shell includes a plurality of projections extending into the space formed between the inner shell and the outer shell; and
wherein the manifolds have a larger cross-section in a radial direction, over at least a portion of an entire circumference of the motor enclosure, than the fluid tight space.