STATOR BAR CLIP ADAPTER FOR LIQUID COOLED DYNAMOELECTRIC DEVICE

• US 20150229185A1
• Filed: 02/13/2014
• Published: 08/13/2015
• Est. Priority Date: 02/13/2014
• Status: Active Grant

• Current Assignee: GE Infrastructure Technology, LLC (General Electric Company)
• Original Assignee: General Electric Company
• Inventors: Villani, Michael Christopher, Petti, John Anthony, Rigosu, Anthony, Garguilo, Vance John
• Granted Patent: US 9,601,972 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02K 3/12 arranged in slots
• CPC Class Codes: H02K 3/24 with channels or ducts for cooling medium between the conductors
• CPC Class Codes: H02K 9/19 for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

A stator bar clip adapter for a liquid cooled dynamoelectric device having a stator bar bottle clip coupled to a first stator bar and a stator bar leaf clip coupled to a second, same series-loop stator bar, and a related dynamoelectric device are disclosed. The stator bar clip adapter includes a bottle clip engaging member configured to engage a stator bar bottle clip; and a leaf clip engaging member coupled to the bottle clip engaging member and configured to engage a stator bar leaf clip.

Claims

1. A stator bar clip adapter for a liquid cooled dynamoelectric device having a stator bar bottle clip coupled to a first stator bar and a stator bar leaf clip coupled to a second, same series-loop stator bar, the adapter comprising:

a bottle clip engaging member configured to engage the stator bar bottle clip; and

a leaf clip engaging member coupled to the bottle clip engaging member and configured to engage the stator bar leaf clip.

2. The stator bar clip adapter of claim 1, wherein the bottle clip engaging member includes a collar having an inner diameter configured for sliding engagement about an outer diameter of the stator bar bottle clip.

3. The stator bar clip adapter of claim 2, wherein the collar is sized such that, in a seated position, the stator bar bottle clip extends through the collar allowing a piping connection to the stator bar bottle clip.

4. The stator bar clip adapter of claim 2, wherein the collar includes a braze ring therein for engaging the outer diameter of the stator bar bottle clip.

5. The stator bar clip adapter of claim 1, wherein the leaf clip engaging member includes:

a base coupled to the bottle clip engaging member; and

a plurality of leaf members extending from the base and configured for intermeshing engagement with a plurality of leafs of the stator bar leaf clip.

6. The stator bar clip adapter of claim 5, wherein the plurality of leaf members are flexible.

7. The stator bar clip adapter of claim 5, wherein the base includes a plurality of slots, each slot for seating one of the plurality of leaf members therein.

8. The stator bar clip adapter of claim 7, wherein the intermeshing engagement includes a brazed connection between each leaf member and a respective leaf of the stator bar leaf clip.

9. The stator bar clip adapter of claim 8, wherein each leaf member is coupled within a respective seat by a brazed connection having a reflow temperature greater than the brazed connection used to engage each leaf member to a respective leaf of the stator bar leaf clip.

10. The stator bar clip adapter of claim 5, wherein the plurality of leaf members of the leaf clip engaging member have varying lengths configured to seat with a space between the plurality of leafs of the stator bar leaf clip.

11. The stator bar clip adapter of claim 5, wherein the first stator bar is structured to accommodate a stator bar leaf clip.

12. The stator bar clip adapter of claim 5, wherein the bottle clip engaging member includes a collar having an inner diameter configured for sliding engagement about an outer diameter of the stator bar bottle clip, and wherein the base extends axially toward the stator bar relative to the collar.

13. The stator bar clip adapter of claim 12, wherein the collar is configured to position the plurality of leaf seal members relative to the stator bar bottle clip to extend toward the plurality of leafs of the stator bar leaf clip.

14. The stator bar clip adapter of claim 5, wherein the base has a shape configured to mate with an outer shape of the stator bar bottle clip.

15. The stator bar clip adapter of claim 1, wherein the bottle clip engaging member extends at an obtuse angle relative to the leaf clip engaging member.

16. The stator bar clip adapter of claim 1, wherein each member includes copper.

17. A stator bar clip adapter comprising:

a bottle clip engaging member including a collar having an inner diameter configured for sliding engagement about an outer diameter of a stator bar bottle clip coupled to a first stator bar; and

a leaf clip engaging member configured to engage a stator bar leaf clip coupled to a second, same series-loop stator bar, the leaf clip engaging member including;

a base coupled to the bottle clip engaging member; and

a plurality of leaf members extending from the base and configured for intermeshing engagement with a plurality of leafs of the stator bar leaf clip.

18. The stator bar clip adapter of claim 17, wherein the base includes a plurality of slots, each slot for seating one of the plurality of leaf members therein.

19. A liquid cooled dynamoelectric device comprising:

a first stator bar;

a stator bar bottle clip coupled to an end of the first stator bar;

a second, same series-loop stator bar adjacent the first stator bar;

a stator bar leaf clip coupled to an end of the second stator bar; and

a stator bar clip adapter coupling the stator bar bottle clip to the stator bar leaf clip.

20. The liquid cooled dynamoelectric device of claim 19, wherein the stator bar clip adapter includes:

a bottle clip engaging member including a collar having an inner diameter configured for sliding engagement about an outer diameter of the stator bar bottle clip; and

a leaf clip engaging member configured to engage the stator bar leaf clip, the leaf clip engaging member including;

a base coupled to the bottle clip engaging member; and

a plurality of leaf members extending from the base and configured for intermeshing engagement with a plurality of leafs of the stator bar leaf clip.