Pole shoe of a generator, preferably a generator of a wind turbine generator system

Patent metadata

Field	Value
Publication number	US-9742224-B2
Application number	US-201214008244-A
Country	US
Kind code	B2
Filing date	Mar 23, 2012
Priority date	Apr 1, 2011
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

The invention concerns a pole shoe, in particular of a generator, comprising a pole assembly which is of a laminated configuration, at least one winding arranged around the pole assembly, and a body which passes through the laminated pole assembly in the longitudinal direction and which has a plurality of transversely directed engagement locations, preferably at most three transversely directed engagement locations, into which a respective holding means can engage to fasten the pole shoe on a support, in particular the rotor or stator of a generator. The present invention further concerns a pole shoe, in particular of a generator, comprising a pole assembly which is of a laminated configuration, at least one winding arranged around the pole assembly, and an insulating means arranged between the pole assembly and the winding, wherein the insulating means has a fiber composite material.

First claim

The invention claimed is:

1. A pole shoe of a generator, the pole shoe comprising:
a pole assembly that includes laminated materials;
at least one winding arranged around the pole assembly; and
an end portion provided at an end of the pole assembly and located between the pole assembly and the winding, wherein the end portion has an outer surface that is concave shaped, the winding located in the concave shape of the outer surface of the end portion, wherein the end portion has rounded edges that provide an edge free transition between the end portion and the pole assembly.

2. The pole shoe according to claim 1 further comprising a side portion located over the winding, wherein at least one of the end portion and the side portion has at least one projecting edge extending parallel to the winding.

3. The pole shoe according to claim 1 wherein the end portion is coupled to the pole assembly by a pressure portion.

4. A generator comprising:
a pole shoe according to claim 1 .

5. A wind power installation comprising:
a generator according to claim 4 , the generator comprising:
a stator; and
a rotor, wherein the support to which the pole shoe is fastened is part of the stator or the rotor.

6. The pole shoe according to claim 1 further comprising an insulating means arranged between the pole assembly and the winding, wherein the insulating means produces an adhesive connection between the pole assembly and the winding.

7. The pole shoe according to claim 6 wherein the insulating means has at least one of a fiber composite material and a glass fiber-reinforced plastic.

8. The pole shoe according to claim 7 wherein the insulating means is a fiber composite material and the fiber composite material has meta aramid fibers.

9. The pole shoe according to 1 further comprising a body that passes through the pole assembly in a longitudinal direction and has a plurality of transversely directed engagement locations into which a respective holding means can engage to fasten the pole shoe to a support.

10. The pole shoe according to claim 9 wherein the plurality of transversely directed engagement locations are at most three engagement locations, wherein at least two of the engagement locations are provided at the ends of the pole assembly.

11. The pole shoe according to claim 10 wherein a third engagement location is provided at the center of the pole assembly.

12. The pole shoe according to claim 9 wherein the plurality engagement locations are so provided that heat can be discharged from the pole shoe to at least one cooling region in the support by way of the surfaces of the pole shoe between the engagement locations.

13. The pole shoe according to claim 9 wherein the holding means are screws.

14. The pole shoe according to claim 9 wherein the body is a cylindrical pin.

Assignees

• Gudewer Wilko
• Hildebrand Arno
• Wobben Properties Gmbh

Inventors

• Gudewer Wilko
• Hildebrand Arno

Classifications

• H02K7/1838

  Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine · CPC title

• H02K1/08 Primary

  Salient poles · CPC title

• H02K7/183

  wherein the turbine is a wind turbine (adaptation of a wind turbine to an electric generator F03D9/25) · CPC title

• H02K3/52 Primary

  Fastening salient pole windings or connections thereto · CPC title

• H02K3/325

  for windings on salient poles, such as claw-shaped poles · CPC title