High speed rotor connection support

Patent metadata

Field	Value
Publication number	US-9755472-B2
Application number	US-201414162287-A
Country	US
Kind code	B2
Filing date	Jan 23, 2014
Priority date	Oct 8, 2013
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A rotor connection support comprising a main connection ring configured to reduce the moment load on fastener locations (such as threaded fastener locations) by integrating stand-off posts into a high strength plate are discussed herein. These stand-offs may be configured to reduce the stresses on the high stress concentration/low cross section threads. Also, included is an improved wire routing and wire support configured to maximize the fatigue cycles of the main field lead wires.

First claim

What is claimed is:

1. A rotor connection ring comprising:
a threaded stand-off configured to couple to a male threaded coupler,
wherein the threaded stand-off comprises female threading,
wherein at least a portion of the female threading is located above a plane defined by a top outwardly facing surface of the rotor connection ring,
wherein the male threaded coupler comprises a wire support fastener configured to retain a wire cover,
the wire cover is positioned at least partially overlapping a wire support,
the wire support comprises a pair of channels configured to house two different wires, and
the pair of channels are substantially aligned in the same axial plane.

2. The rotor connection ring of claim 1 , wherein the rotor connection ring further comprising an integral counter balance weight.

3. The rotor connection ring of claim 2 , wherein the counter balance weight is sized and positioned to offset at least a weight of a wire cover, a wire support, and the DC threaded coupler.

4. The rotor connection ring of claim 1 , wherein the threaded stand-off is integral to the rotor connection ring.

5. The rotor connection ring of claim 1 , wherein the threaded stand-off is configured to carry an axial load.

6. The rotor connection ring of claim 1 , further comprising a DC bus bar comprising an integral cup washer configured to retain an annularly shaped wire, wherein the integral cup washer couples to a wire configured to be secured via the male threaded coupler.

7. A DC rotor system comprising:
a connection ring comprising:
a wire support fastener stand-off configured to couple to a wire support fastener, wherein the wire support fastener is configured to retain a wire cover, wherein wire support fastener stand-off comprises female threading, wherein at least a portion of the female threading is located above a plane defined by a top outwardly facing surface of the connection ring, and
a wire support retained by the wire cover, wherein the wire support comprises a pair of channels configured to house two different wires wherein the pair of channels are substantially traverse the same axial plane.

8. A DC rotor system comprising:
a connection ring comprising:
a wire support fastener stand-off configured to couple to a wire support fastener, wherein the wire support fastener is configured to retain a wire cover, wherein wire support fastener stand-off comprises female threading, wherein at least a portion of the female threading is located above a plane defined by a top outwardly facing surface of the connection ring, and
at least one of:
a counter balance weight formed integral to the connection ring; and
a DC coupler stand-off configured to couple to a male threaded coupler, wherein DC coupler stand-off comprises female threading, wherein at least a portion of the female threading is located above the plane defined by the top outwardly facing surface of the connection ring.

9. A DC rotor system comprising:
a connection ring comprising:
a wire support fastener stand-off configured to couple to a wire support fastener, wherein the wire support fastener is configured to retain a wire cover, wherein wire support fastener stand-off comprises female threading, wherein at least a portion of the female threading is located above a plane defined by a top outwardly facing surface of the connection ring, and
a DC coupler stand-off, wherein the DC coupler stand-off and the wire support fastener standoff are configured to carry at least one of axial loads and radial loads.

10. The DC rotor system of claim 9 , further comprising a DC bus bar comprising an integral cup washer configured to retain an annularly shaped wire secured by the male threaded coupler.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Welch Timothy R
• Konopa Brian C
• Lemmers Jr Glenn C
• Wagner Luke

Classifications

• H02K3/51 Primary

  applicable to rotors only · CPC title

• H02K3/50

  Fastening of winding heads, equalising connectors, or connections thereto · CPC title

• H02K3/52

  Fastening salient pole windings or connections thereto · CPC title

• H02K11/20

  for measuring, monitoring, testing, protecting or switching (rectifiers H02K11/04; power electronics H02K11/33) · CPC title

• H02K13/06

  Resistive connections, e.g. by high-resistance chokes or by transistors · CPC title