HIGH EFFICIENCY SALIENT POLE MACHINE AND METHOD OF FORMING THE SAME

• US 20090083966A1
• Filed: 10/02/2007
• Published: 04/02/2009
• Est. Priority Date: 10/02/2007
• Status: Active Grant

• Current Assignee: Kato Engineering, Inc. (Nidec Corporation)
• Original Assignee: Emerson Electric Company
• Inventors: Lorenz, Josh A., Saint-Michel, Jacques Andre, Myers, Louis R., Cox, Brian N., Fowler, John T., McCabe, Joseph B., Smithback, Jerhod T.
• Granted Patent: US 7,982,359 B2
• Time in Patent Office: Days
• US Class Current: 29/598
• CPC Class Codes: H02K 1/24 Rotor cores with salient poles ; Variable reluctance rotors
• CPC Class Codes: H02K 1/325 between salient poles
• CPC Class Codes: H02K 9/04 having means for generating a flow of cooling medium
• CPC Class Codes: Y10T 29/49009 Dynamoelectric machine
• CPC Class Codes: Y10T 29/49012 Rotor

Abstract

A salient pole machine and method of forming the same comprising a rotating field assembly and at least one inter-pole cap connected to the rotating field assembly and/or at least end coil cap connected to the rotating field assembly. Each inter-pole cap preferably includes a top surface that has a curvature and/or at least one cavity. Each end coil cap may include at least one support. The salient pole machine may also include at least one fan assembly independent of the rotating field assembly. In a preferred embodiment, the salient pole machine includes at least one mounting plate, wherein each fan assembly is mounted on the mounting plate. The inter-pole caps and the end coil caps preferably comprise composites, polymers, alloys, ceramics, or naturally occurring materials.

Claims

1. A salient pole machine comprising:

a rotating field assembly; and

at least one inter-pole cap connected to the rotating field assembly.

2. The salient pole machine of claim 1, wherein each inter-pole cap comprises a top surface and wherein the top surface of each inter-pole cap has a curvature.

3. The salient pole machine of claim 1, wherein each inter-pole cap comprises at least one cavity.

4. The salient pole machine of claim 1, wherein each inter-pole cap comprises composites, polymers, alloys, ceramics, or naturally occurring materials.

5. The salient pole machine of claim 1, further comprising at least one end coil cap connected to the rotating field assembly.

6. The salient pole machine of claim 5, wherein each end coil cap comprises composites, polymers, alloys, ceramics, or naturally occurring materials.

7. The salient pole machine of claim 1, further comprising at least one fan assembly independent of the rotating field assembly.

8. The salient pole machine of claim 7, further comprising at least one mounting plate, wherein each fan assembly is mounted on the mounting plate.

9. A salient pole machine comprising:

a rotating field assembly; and

at least one end coil cap connected to the rotating field assembly.

10. The salient pole machine of claim 9, wherein each end pole cap comprises at least one support.

11. The salient pole machine of claim 9, wherein each end coil cap comprises composites, polymers, alloys, ceramics, or naturally occurring materials.

12. The salient pole machine of claim 9, further comprising at least one inter-pole cap connected to the rotating field assembly.

13. The salient pole machine of claim 12, wherein each inter-pole cap comprises a top surface and wherein the top surface of each inter-pole cap has a curvature.

14. The salient pole machine of claim 12, wherein each inter-pole cap comprises at least one cavity.

15. The salient pole machine of claim 10, further comprising at least one fan assembly independent of the rotating field assembly.

16. The salient pole machine of claim 15, further comprising at least one mounting plate, wherein each fan assembly is mounted on the mounting plate.

17. A method of forming a salient pole machine having a rotating field assembly, the method which comprises the step of connecting at least one inter-pole cap to the rotating field assembly.

18. The method of claim 17, which further comprises the step of connecting at least end coil cap to the rotating field assembly.

19. The method of claim 17, which further comprises the step of connecting at least one fan assembly independent of the rotating field assembly to the salient pole machine.

20. The method of claim 17, wherein each inter-pole cap comprises a top surface and wherein the top surface of each inter-pole cap has curvature.