STATOR WINDING HEAT SINK CONFIGURATION

1 . An motor comprising:

a) a rotor; and

b) a stator comprising:

i) front cooling fins thermally mounted to a front of the stator via a front stator yoke;

ii) rear cooling fins thermally coupled to a rear portion of the stator via a rear stator yoke; and

iii) a winding between the front stator yoke and the front cooling fins from the rear stator yoke and the rear cooling fins.

2 . The motor of claim 1 , wherein the front stator yoke is mounted to a front end of the winding and surrounds three sides of the front end of the winding.

3 . The motor of claim 2 , wherein the front cooling fins are mounted to a front side of the front stator yoke.

4 . The motor of claim 3 , wherein the front cooling fins have a solid front annular face, the front cooling fins being oriented radially and extending laterally between the front annular face and the front stator yoke.

5 . The motor of claim 1 , wherein the rear stator yoke is mounted to a rear end of the winding and surrounds three sides of the rear end of the winding.

6 . The motor of claim 5 , wherein the rear cooling fins are mounted to an outer surface of the rear stator yoke.

7 . The motor of claim 6 , wherein the rear cooling fins have a solid outer annular face, the rear cooling fins oriented radially and extend radially between the rear stator yoke and the outer annular face.

8 . The motor of claim 1 , wherein the front cooling fins have an outer radius and an inner radius, the outer radius being about a same outer radius as the winding.

9 . The motor of claim 8 , wherein the rotor comprises and outer rotor, and wherein the rear cooling fins have an outer radius and an inner radius, the inner radius being about at a same radius as an outer radius of the outer rotor.

10 . The motor of claim 1 , wherein the rotor comprises and outer rotor, and wherein the rear cooling fins have an outer radius and an inner radius, the inner radius being about at a same radius as an outer radius of the outer rotor.

11 . The motor of claim 1 , wherein the motor is an aircraft motor comprising a spinner, and wherein the front cooling fins are housed within the spinner.

12 . The motor of claim 11 , wherein the rear cooling fins have an outer radius that is larger than an outer radius of the spinner.

13 . The motor of claim 1 , wherein the motor is an aircraft motor comprising a spinner, and wherein the rear cooling fins have an outer radius that is larger than an outer radius of the spinner.

14 . The motor of claim 1 , wherein the motor is an aircraft motor comprising a spinner, and wherein the front cooling fins have an outer radius that is less than a radius of a rear opening of the spinner.

15 . A motor comprising:

a) an inner and outer rotor connected together;

b) a stator between the inner and outer rotors, the stator comprising:

i) a winding comprising conductors encased in a thermally conductive material;

ii) a thermally conductive front yoke mounted to a front end of the winding;

iii) front cooling fins mounted to the front yoke;

iv) a thermally conductive rear yoke mounted to a rear end of the winding; and

v) rear cooling fins mounted to the rear yoke; and

c) wherein the winding is disposed between and separates the front yoke and the front cooling fins from the rear yoke and the rear cooling fins.

16 . The motor of claim 15 , wherein the front cooling fins are mounted to a front end of the front yoke.

17 . The motor of claim 16 , wherein the rear cooling fins are mounted to an outer surface of the rear yoke.

18 . The motor of claim 17 , wherein the front yoke surrounds three sides of the front end of the winding, and wherein the rear yoke surrounds three sides of the rear end of the winding.

19 . The motor of claim 15 , wherein the rear cooling fins are mounted to an outer surface of the rear yoke.