LIQUID COOLED SERIES LOOP CONNECTOR

• US 3,693,036 A
• Filed: 06/14/1971
• Issued: 09/19/1972
• Est. Priority Date: 06/14/1971
• Status: Expired due to Term

• Current Assignee: Nikolas Schmitt
• Original Assignee: Nikolas Schmitt
• Inventors: Schmitt, Nikolas
• Primary Examiner(s): Miller, J. D.
• Assistant Examiner(s): Skudy, R.
• Application Number:
  US05/152,680
• Time in Patent Office: 463 Days
• Field of Search: 310/52,54,64,65,59,58,71,260,270 285/235,169,150,132
• US Class Current: 310/52
• CPC Class Codes: H02K 3/22 consisting of hollow conductors
• CPC Class Codes: H02K 3/505 for large machine windings, e.g. bar windings H02K3/51 takes precedence

Abstract

A connector for forming a fluid tight, electrically conductive joint between two juxtaposed, fluid-colled stator bar ends or between a bar end and a connection ring of a dynamoelectric machine which may be misaligned during stator assembly. The connector is comprised of two movable and rotatable fittings with a sleeve member therebetween which are so formed as to correct slight bar or connection ring misalignment. The sleeve member has an interior brazing surface at each end defined by a counterbored hole. In one embodiment, the sleeve is bent so that the centerlines of the counterbored holes are noncoincident. In other embodiments, the sleeve is straight but the counterbored holes are formed so that the centerlines of one or both counterbored holes do not coincide with the centerline of the sleeve.

Claims

1. In a fluid cooled dynamoelectric machine including, a stator core with a plurality of electrically conductive members disposed therein, said electrically conductive members having passages therein for transporting fluid coolant through the electrically conductive members;

a connector for electrically and fluidly coupling first and second electrically conductive members, including;

electrically and fluidly conductive headers attached to the ends of said first and second members;

a first electrically conductiVe fitting rotatably and slidably mounted into said header on said first member;

a second electrically conductive fitting rotatably and slidably mounted into said header on said second member; and

, a substantially straight, rigid electrically conductive sleeve interconnected between said first and second fittings providing the sole electrical and fluidic connection, said sleeve having end bores, the centerlines of which are non-coincident with respect to one another, whereby misalignment between the first and second electrically conductive members is accommodated.

2. The connector as recited in claim 1 wherein said first and second electrically conductive members are stator bars.

3. The connector as recited in claim 1 wherein at least one of said first and second electrically conductive members is a stator bar.

4. The connector as recited in claim 1 wherein said first and second fittings are elbow joints.

5. The connector as recited in claim 1 wherein said first fitting is an elbow joint and said second fitting is a T-joint, the latter providing inlet and outlet fluid passages.

6. The connector as recited in claim 1 wherein the sleeve is formed with a bend so that the centerlines of the end bores intersect at an angle in the order of 10*.

7. In a fluid cooled dynamoelectric machine including, a stator core with a plurality of electrically conductive members disposed therein, said electrically conductive members having passages therein for transporting fluid coolant through the electrically conductive members;

a connector for electrically and fluidly coupling first and second electrically conductive members, including;

electrically and fluidly conductive headers attached to the ends of said first and second members;

a first electrically conductive fitting rotatably and slidably mounted into said header on said first member;

a second electrically conductive fitting rotatably and slidably mounted into said header on said second member; and

, an electrically conductive sleeve interconnected between said first and second fittings, said sleeve having end bores, the centerlines of which are non-coincident with respect to one another and non-coincident with the centerline of the sleeve whereby misalignment between the first and second electrically conductive members is accommodated.

8. In a fluid cooled dynamoelectric machine including, a stator core with a plurality of electrically conductive members disposed therein, said electrically conductive members having passages therein for transporting fluid coolant through the electrically conductive members;

a connector for electrically and fluidly coupling first and second electrically conductive members, including;

electrically and fluidly conductive headers attached to the ends of said first and second members;

a first electrically conductive fitting rotatably and slidably mounted into said header on said first member;

a second electrically conductive fitting rotatably and slidably mounted into said header on said second member; and

, an electrically conductive sleeve interconnected between said first and second fittings, said sleeve having end bores, the centerlines of which are non-coincident with respect to one another and wherein one end bore has a centerline coincident with the centerline of the sleeve while the other end bore has a centerline which is non-coincident with the centerline of the sleeve and said one end bore, whereby misalignment between the first and second electrically conductive members is accommodated.