US 12,136,869 B1
Heat dissipation plate for electric machine
Tamer Qaimari, Künzell (DE); Victor Kislev, Kfar Yona (IL); Ruslan Shabinski, Maale Adumim (IL); and Eliyahu Rozinsky, Hod Hasharon (IL)
Assigned to EVR MOTORS LTD, Petah Tikva (IL)
Filed by EVR MOTORS LTD, Petah Tikva (IL)
Filed on Dec. 28, 2023, as Appl. No. 18/398,488.
Int. Cl. H02K 9/10 (2006.01); H02K 9/22 (2006.01)
CPC H02K 9/10 (2013.01) [H02K 9/227 (2021.01)] 20 Claims
OG exemplary drawing
 
1. An air coolable electric machine, comprising:
a rotor;
a stator;
a heat dissipation plate having a first side arranged for thermal communication with the stator, the heat dissipation plate having a central opening therein and an outer periphery; and
a plurality of circumferentially distributed Y-shaped or u-shaped cooling fins extending from a second side of the heat dissipation plate opposite the first side, wherein each cooling fin includes a radially extending leg portion and a V-shaped or ψ-shaped deflector portion, wherein distal-most ends of each V-shaped or ψ-shaped deflector portion extend radially to the outer periphery an outer edge of the heat dissipation plate to deflect a first portion of airflow outwardly, and wherein each radially extending leg portion is arranged to direct a portion of airflow inwardly toward the central opening.