SUPPORT STRUCTURE SEGMENT FOR A GENERATOR OF A WIND TURBINE

• US 20200136442A1
• Filed: 01/31/2018
• Published: 04/30/2020
• Est. Priority Date: 04/24/2017
• Status: Active Grant

• Current Assignee: Siemens Gamesa Renewable Energy A/S (Siemens AG)
• Original Assignee: Siemens Gamesa Renewable Energy A/S (Siemens AG)
• Inventors: Andersen, Mads Peter Zippor Leth, Jacobsen, Bo Nedergaard, Jayaraman, Saravanan, Schaldemose, Stefan
• Granted Patent: US 10,886,797 B2
• Time in Patent Office: Days
• CPC Class Codes: F03D 9/25 the apparatus being an electrical generator F03D9/22 takes precedence
• CPC Class Codes: H02K 1/187 to inner stators
• CPC Class Codes: H02K 1/20 with channels or ducts for flow of cooling medium
• CPC Class Codes: H02K 15/028 for fastening to casing or support, respectively to shaft or hub
• CPC Class Codes: H02K 7/183 wherein the turbine is a wind turbine adaptation of a wind turbine to an electric generator F03D9/25

Abstract

Provided is a support structure segment for a stator of a generator, in particular of a wind turbine, wherein the support structure segment includes a carrier element extending in an axial direction AD, wherein the carrier element includes a base section, a side section and a top section, and wherein the top section is configured to be coupled to a lamination sheet section of the stator by means of a fixing connection.

Claims

1. A support structure segment for a stator of a generator of a wind turbine, the support structure segment comprising:

a carrier element extending in an axial direction, wherein

the carrier element comprises a base section, a side section and a top section, wherein;

the base section and the side section are oriented relative to each other at an outer angle in a range of 70°

to 130°

,

the side section and the top section are oriented relative to each other at an inner angle in a range of 70°

to 130°

,

the base section coupled to the side section,

the side section is coupled to the top section,

the base section is spaced apart from the top section in a radial direction, and

the top section is configured to be coupled to a lamination sheet section of the stator by a fixing connection.

2. The support structure segment according to claim 1, wherein

the carrier element is a monolithically formed metal carrier element.

3. The support structure segment according to claim 1, wherein the carrier element further comprises:

a further side section being coupled to the top section and being spaced apart from the side section essentially in circumferential direction, wherein;

an end section of the support structure segment in circumferential direction is formed by the further side section of the carrier element.

4. The support structure segment according to any of the claim 1, wherein the carrier element further comprises:

a further base section being coupled to the further side section and being spaced apart from the top section essentially in a radial direction.

5. The support structure segment according to claim 1, wherein the support structure segment comprises at least two carrier elements.

6. The support structure segment according to claim 5, wherein the support structure segment further comprises a plate element extending at least between the at least two carrier elements in a circumferential direction.

7. The support structure segment according to claim 6, wherein

the plate element extends essentially from an end section of the support structure segment to an opposite further end section of the support structure segment in the circumferential direction.

8. The support structure segment according to claim 6, wherein

a plurality of plate elements are aligned in the circumferential direction extending essentially from an end section of the support structure segment to an opposite further end section of the support structure segment in the circumferential direction.

9. The support structure segment according to claim 6,

wherein the plate element further comprises a channel configured to channel air in the axial direction.

10. The support structure segment according to claim 5, wherein the support structure segment further comprises

a top plate,

wherein the top plate is coupled to the carrier element connecting the at least two carrier elements in the circumferential direction.

11. The support structure segment according to claim 10, wherein the connecting of the at least two carrier elements by the top plate in circumferential direction leaves at least a portion of the top section of the carrier element uncovered by the top plate to allow a coupling of the top plate to a lamination sheet section by means of a fixing connection.

12. The support structure segment according any of the claim 5, wherein the support structure segment further comprises a bottom plate, wherein the bottom plate is coupled to the carrier element, preferably to the base section of the carrier element, connecting the at least two carrier elements in the circumferential direction.

13. A stator for a generator of a wind turbine, the stator comprising:

a lamination sheet section, and

a support structure, wherein

the support structure comprises a plurality of support structure segments according to claim 1, and

the lamination sheet section of the stator is coupled to the top section of the carrier element by means of a dove-tail joint connection.

14. The stator according to claim 13, wherein

at least two support structure segments of the a plurality of support structure segments are coupled to each other by means of at least one block element between corresponding end sections of the two support structure segments in the circumferential direction.

15. A method for manufacturing of a stator, the method comprising:

providing a lamination sheet section;

providing a support structure,

wherein the support structure comprises a plurality of support structure segments according to claim 1;

coupling the lamination sheet section of the stator to the top section of the carrier element by means of a fixing connection, by means of a dovetail joint connection.