Current control brush assembly

Patent metadata

Field	Value
Publication number	US-8963398-B2
Application number	US-201213601549-A
Country	US
Kind code	B2
Filing date	Aug 31, 2012
Priority date	Oct 28, 2011
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

A system, in certain embodiments, includes a current control brush assembly including a first electrically conductive arcuate housing section retaining a first set of electrically conductive filaments. The first set of electrically conductive filaments extends generally inward along a radial direction. The current control brush assembly also includes a second electrically conductive arcuate housing section retaining a second set of electrically conductive filaments. The second set of electrically conductive filaments extends generally inward along the radial direction. Furthermore, the current control brush assembly includes a hinge configured to facilitate rotation of the second electrically conductive arcuate housing section relative to the first electrically conductive arcuate housing section about an axis substantially perpendicular to a first axial surface of the first electrically conductive arcuate housing section.

First claim

The invention claimed is:

1. A system comprising:
a current control brush assembly, comprising:
a first electrically conductive arcuate housing section retaining a first plurality of electrically conductive filaments, wherein the first plurality of electrically conductive filaments extends generally inward along a radial direction;
a second electrically conductive arcuate housing section retaining a second plurality of electrically conductive filaments, wherein the second plurality of electrically conductive filaments extends generally inward along the radial direction; and
a hinge configured to facilitate rotation of the second electrically conductive arcuate housing section relative to the first electrically conductive arcuate housing section about an axis substantially perpendicular to a first axial surface of the first electrically conductive arcuate housing section.

2. The system of claim 1 , wherein the hinge comprises a flexible strip coupled to a first outer radial surface of the first electrically conductive arcuate housing section, and to a second outer radial surface of the second electrically conductive arcuate housing section.

3. The system of claim 2 , wherein the flexible strip is coupled to the first outer radial surface via a first adhesive layer, and the flexible strip is coupled to the second outer radial surface via a second adhesive layer.

4. The system of claim 1 , wherein the hinge is positioned adjacent to a first circumferential end of the first electrically conductive arcuate housing section, and adjacent to a second circumferential end of the second electrically conductive arcuate housing section, and wherein the current control brush assembly comprises a locking assembly configured to secure a third circumferential end of the first electrically conductive arcuate housing section to a fourth circumferential end of the second electrically conductive arcuate housing section.

5. The system of claim 4 , wherein the locking assembly comprises a first arcuate plate configured to couple to the first axial surface of the first electrically conductive arcuate housing section adjacent to the first circumferential end, and to a second axial surface of the second electrically conductive arcuate housing section adjacent to the second circumferential end.

6. The system of claim 5 , wherein the first arcuate plate is configured to couple to the first axial surface via a first adhesive layer, and the first arcuate plate is configured to couple to the second axial surface via a second adhesive layer.

7. The system of claim 5 , wherein the current control brush assembly comprises a second arcuate plate configured to couple to the first axial surface adjacent to the third circumferential end, and to the second axial surface adjacent to the fourth circumferential end.

8. The system of claim 1 , wherein the first plurality of electrically conductive filaments extends radially inward toward a shaft, the first plurality of electrically conductive filaments is configured to transfer a first electrical charge from the shaft to the first electrically conductive arcuate housing section, the second plurality of electrically conductive filaments extends radially inward toward the shaft, and the second plurality of electrically conductive filaments is configured to transfer a second electrical charge from the shaft to the second electrically conductive arcuate housing section.

9. The system of claim 8 , wherein the first and second electrically conductive arcuate housing sections are configured to mount to a surface of an electrically conductive structure such that at least a portion of the first and second pluralities of electrically conductive filaments contacts the shaft extending through the electrically conductive structure.

10. The system of claim 9 , wherein the electrically conductive structure comprises a faceplate of an electric motor.

11. A system comprising:
a current control brush assembly, comprising:
a first arcuate housing section retaining a first plurality of filaments, wherein the first plurality of filaments extends generally inward along a radial direction;
a second arcuate housing section retaining a second plurality of filaments, wherein the second plurality of filaments extends generally inward along the radial direction; and
a hinge coupled to the first and second arcuate housing sections, wherein the hinge is configured to enable the current control brush assembly to transition between a closed position in which the first and second arcuate housing sections form a substantially annular housing configured to surround a circumference of a shaft, and an open position configured to facilitate disposition of the current control brush assembly about the shaft,
wherein the first arcuate housing section, the second arcuate housing section, the first plurality of filaments, and the second plurality of filaments are electrically conductive.

12. The system of claim 11 , wherein the hinge is positioned adjacent to a first circumferential end of the first arcuate housing section, and adjacent to a second circumferential end of the second arcuate housing section, and wherein the current control brush assembly comprises a locking assembly configured to secure a third circumferential end of the first arcuate housing section to a fourth circumferential end of the second arcuate housing section.

13. The system of claim 11 , wherein the hinge comprises a flexible strip coupled to a first outer radial surface of the first arcuate housing section, and to a second outer radial surface of the second arcuate housing section.

14. The system of claim 13 , wherein the flexible strip is coupled to the first outer radial surface via a first adhesive layer, and the flexible strip is coupled to the second outer radial surface via a second adhesive layer.

15. The system of claim 11 , wherein at least one of the first plurality of filaments is made from a material comprising micro conductive fiber, and at least one of the second plurality of filaments is made from a material comprising micro conductive fiber.

16. A method of manufacturing a current control brush assembly, comprising:
forming a first grounding assembly by coupling a first plurality of electrically conductive filaments to a first electrically conductive arcuate housing section such that the first plurality of electrically conductive filaments extends generally inward along a radial direction;
forming a second grounding assembly by coupling a second plurality of electrically conductive filaments to a second electrically conductive arcuate housing section such that the second plurality of electrically conductive filaments extends generally inward along the radial direction; and
coupling the first grounding assembly to the second grounding assembly via a hinge configured to enable the current control brush assembly to transition between a closed position in which the first and second electrically conductive arcuate housing sections form a substantially annular housing configured to surround a circumference of a shaft, and an open position configured to facilitate disposition of the current control brush assembly about the shaft.

17. The method of claim 16 , wherein the hinge comprises a flexible strip, and wherein coupling the first grounding assembly to the second grounding assembly comprises coupling the flexible strip to a first outer radial surface of the first electrically conductive arcuate housing section, and coupling the flexible strip to a second outer radial surface of the second electrically conductive arcuate hous

Assignees

• Roman Matthew D
• Richardson Jason
• Richardson Jeffrey W
• Willwerth Adam
• Illinois Tool Works

Inventors

• Roman Matthew D
• Richardson Jason
• Richardson Jeffrey W
• Willwerth Adam

Classifications

• H02K11/0089 Primary

  Electricity · mapped topic

• Y10T29/49009

  Dynamoelectric machine · CPC title

• H02K11/40 Primary

  Structural association with grounding devices · CPC title