IP Library Patent Application 13649578
Patent Application
App. No. 13/649,578

BRUSH SYSTEM FOR BRUSH MOTOR DESIGN

Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US None
App. No.
13/649,578
Abstract

A brush system for a brush motor design for an electric power steering system is provided. The brush motor includes a commutator rotatable about an axis, a brush guide positioned about the commutator, at least one brush disposed in the brush guide and positioned proximate to a radially outer edge of the commutator and a spring supported by the brush guide urging the at least one brush into contact with the commutator. The at least one brush includes a contact end having at least one flat portion configured to contact the commutator.

Claims (13)

1 . A brush motor for an electric power steering system comprising:

a commutator rotatable about an axis;

a brush guide positioned about the commutator;

at least one brush disposed in and supported by the brush guide, the brush guide configured to apply a brush guide force to one side of the at least one brush, and the at least one brush positioned proximate to a radially outer edge of the commutator; and

a spring supported by the brush guide urging the at least one brush into contact with the commutator;

the at least one brush comprising a contact end including two flat portions, each configured to contact the commutator.

2 . The brush motor of claim 1 , wherein the two flat portions are disposed on opposite sides of a longitudinal axis of the brush, each flat portion configured to contact the commutator.

3 . The brush motor of claim 1 , wherein the at least one brush includes a plurality of brushes disposed along a radially outer edge of the commutator and spaced along a circumference of the commutator.

4 . The brush motor of claim 1 , wherein the brush includes a longitudinal axis and the spring defines a spring axis, the spring axis positioned at an angle relative to the longitudinal axis of the brush.

5 . The brush motor of claim 4 , wherein the spring applies a spring force to the brush at an angle relative to the longitudinal axis of the brush.

6 . The brush motor of claim 1 , wherein the commutator further comprises commutator leads.

7 . The brush motor of claim 1 , wherein the commutator is rotatable in a first direction and a second direction opposite to the first direction.

8 . The brush motor of claim 1 , wherein the at least one brush guide includes a cutout formed along the one side.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2013
From: OZSOYLU, SUAT; GLUMM, WILLIAM
To: STEERING SOLUTIONS IP HOLDING CORPORATION
Reel/Frame 030718/0119 →