Multiple-discharge rain manifold for electric motor cooling and related system and method

1. An apparatus comprising:

a housing configured to receive at least a portion of an electric motor; and

a manifold disposed on an upper surface of the housing, the manifold comprising a number of vertical jets configured to target one or more portions of the electric motor, the vertical jets comprising multiple vias extending between (i) a cavity within the manifold and (ii) an interior portion of the housing;

wherein the cavity within the manifold is formed by a first channel over one side of the electric motor, a second channel extending from the first channel across a width of the electric motor at a first end of the electric motor, a third channel extending from the first channel across the width of the electric motor at a second end of the electric motor, and a fourth channel extending from the first channel part way across the width of the electric motor over a central portion of the electric motor, and

wherein the cavity is defined by:

at least a portion of the upper surface of the housing,

one or more side walls extending from the upper surface of the housing, and

a cover lid coupled to the one or more side walls and configured to cover the cavity and the vias.

2. The apparatus of claim 1 , wherein the one or more side walls are integral with the housing.

3. The apparatus of claim 1 , wherein the cover lid is permanently affixed to the one or more side walls.

4. The apparatus of claim 1 , wherein the vias are positioned to permit a coolant fluid to exit the cavity and strike one or more targeted portions of the electric motor.

5. The apparatus of claim 1 , wherein the vias are configured to permit a coolant fluid to exit the cavity and strike one or more targeted portions of the electric motor regardless of a fluid pressure within the cavity.

6. The apparatus of claim 1 , wherein the vias are patterned in an “M”-shaped pattern.

7. A system, comprising:

a power source; and

an electric motor electrically coupled to the power source, wherein the electric motor comprises:

a housing, and

a manifold disposed on an upper surface of the housing, the manifold comprising a number of vertical jets configured to target one or more portions of the electric motor, the vertical jets comprising multiple vias extending between (i) a cavity within the manifold and (ii) an interior portion of the housing,

wherein the cavity within the manifold is formed by a first channel over one side of the electric motor, a second channel extending from the first channel across a width of the electric motor at a first end of the electric motor, a third channel extending from the first channel across the width of the electric motor at a second end of the electric motor, and a fourth channel extending from the first channel part way across the width of the electric motor over a central portion of the electric motor, and

wherein the cavity is defined by:

at least a portion of the upper surface of the housing,

one or more side walls extending from the upper surface of the housing, and

a cover lid coupled to the one or more side walls and configured to cover the cavity and the vias.

8. The system of claim 7 , wherein the one or more side walls are integral with the housing.

9. The system of claim 7 , wherein the cover lid is permanently affixed to the one or more side walls.

10. The system of claim 7 , wherein the vias are positioned to permit a coolant fluid to exit the cavity and strike one or more targeted portions of the electric motor.

11. The system of claim 7 , wherein the vias are configured to permit a coolant fluid to exit the cavity and strike one or more targeted portions of the electric motor regardless of a fluid pressure within the cavity.

12. The system of claim 7 , wherein the vias are patterned in an “M”-shaped pattern.

13. The system of claim 7 , further comprising:

a pump configured to direct a coolant fluid into the manifold.

14. The system of claim 13 , wherein the pump is configured to vary a pressure of the coolant fluid within the manifold.

15. The system of claim 7 , wherein at least some of the vias are spaced apart to create a rainfall pattern of coolant over the electric motor.

16. A method, comprising:

forming a housing configured to receive at least a portion of an electric motor, the housing comprising at least one channel on an upper surface of the housing, the at least one channel defined by one or more side walls extending from the upper surface of the housing;

forming multiple jets, each of the jets comprising a via extending between (i) the at least one channel of a cavity within a manifold and (ii) an interior portion of the housing, wherein the cavity within the manifold is formed by a first channel over one side of the electric motor, a second channel extending from the first channel across a width of the electric motor at a first end of the electric motor, a third channel extending from the first channel across the width of the electric motor at a second end of the electric motor, and a fourth channel extending from the first channel part way across the width of the electric motor over a central portion of the electric motor; and

coupling a cover lid to the one or more side walls to form a manifold on the upper surface of the housing.

17. The method of claim 16 , wherein the cover lid is permanently affixed to the one or more side walls.

18. The method of claim 16 , wherein at least some of the jets are spaced apart to create a rainfall pattern of coolant over the electric motor.

19. The method of claim 16 , wherein coupling the cover lid comprises friction stir welding the cover lid to the one or more side walls.

20. The method of claim 16 , wherein the jets permit a coolant fluid to exit the at least one channel and strike one or more targeted portions of the electric motor regardless of a fluid pressure within the at least one channel.