System and method for monitoring the status of one or more components of an electrical machine

    公开(公告)号:USRE48756E1

    公开(公告)日:2021-09-28

    申请号:US16393079

    申请日:2019-04-24

    申请人: CUTSFORTH, INC.

    摘要: A monitoring apparatus configured for monitoring a carbon brush of a brush holder assembly of an electrical machine. The monitoring apparatus may include a flexible sensor and a signal processing circuit for processing a signal received from the flexible sensor. The flexible sensor may have an electrical resistance that varies based on a radius of curvature of the flexible sensor, wherein the radius of curvature of the flexible sensor may be associated with a deflection of a spring providing a force to engage the carbon brush with a rotating component of the electrical machine. The signal processing circuit may be coupled to the sensor and may be configured to determine a measure of a wear state of the carbon brush using information about the variable resistance of the flexible sensor.

    Brush wear and vibration monitoring

    公开(公告)号:US11050205B2

    公开(公告)日:2021-06-29

    申请号:US16295530

    申请日:2019-03-07

    申请人: CUTSFORTH, INC.

    IPC分类号: H01R39/58 H01R39/38

    摘要: A brush holder assembly for use in an electrical generator having a moving conductive surface may include a brush holder, such as a brush box, that is configured to be removably mounted to a mounting element on the electrical generator. A carbon brush may be slidingly disposed with the brush holder and may be biased into sliding contact with the moving conductive surface. The brush holder assembly includes a handle that is moveable between an unlocked position in which the brush holder is removable from the mounting element and a locked position in which the brush holder is secured relative to the mounting element. A circuit board is disposed within the handle and includes a sensor that provides an indication of an occurrence of an anomalous and/or threshold condition of the carbon brush.

    BRUSH HOLDER FOR ELECTRICAL CONTACT BRUSHES
    4.
    发明申请

    公开(公告)号:US20200313497A1

    公开(公告)日:2020-10-01

    申请号:US16767533

    申请日:2018-11-28

    IPC分类号: H02K5/14 H01R39/58 H01R39/38

    摘要: The present inventive concept relates to a brush holder for electrical machines comprising a clamping piece comprising a first mounting part and a second clamping part, which when assembled define a clamping hole, which is adapted to be assembled around a spindle; and two brush holder arms, wherein a proximal end of said arm is pivotally mounted on the first mounting part of said clamping piece, and wherein a distal end of said arm is adapted to receive and retain a brush, and wherein said arms have an upper side which is opposite to a lower side facing a slip ring; at least one biasing spring which spring is adapted to act upon said brush holder arms in such a way that said brush holder arms move pivotally towards a slip ring, and when in use presses said brushes against the slip ring; at least one conductive wire connecting the brush to the clamping piece; and wherein a brush holder arm locking mechanism is arranged at or along the upper side of each respective brush holder arm, that said locking mechanism is adapted to be inserted into a slot arranged in the second clamping part; and wherein a brush locking pin is arranged to retain the brush in said brush holder arm, which pin when in use is provided in corresponding bores arranged in the brush holder arm and the brush, wherein said brush locking pin comprises a pipe portion and a spring portion, wherein said spring portion is arranged inside the pipe and has a portion protruding on the outside of said pipe portion from a slot in a wall of said pipe; and wherein said mounting part of said clamping piece is provided with a brush arm stop, arranged to limit a pivot movement of the brush holder arm in a direction towards a slip ring.

    GENERATOR GROUNDING STRAP MODULE
    5.
    发明申请

    公开(公告)号:US20200251967A1

    公开(公告)日:2020-08-06

    申请号:US16267976

    申请日:2019-02-05

    摘要: A generator grounding module selectively mountable to a support bracket and selectively engageable with a rotor includes a plate member movable along a mounting axis to selectively attach the generator grounding module to the support bracket, the plate member movable between a first position and a second position in which the plate member is substantially fixed with respect to the support bracket. A mounting block is movable along the mounting axis with respect to the plate member, a grounding strap is coupled to the mounting block and is movable between a disengaged position and an engaged position in which the grounding strap contacts the rotor, and a biasing assembly is connected to the plate member and the mounting block and operable to bias the mounting block along the mounting axis toward the plate member, wherein the plate member is fixedly attached to the support bracket when in the second position and the biasing assembly biases the grounding strap into the engaged position.

    SLIP RING WITH SELECTIVE WEAR INDICATION
    6.
    发明申请

    公开(公告)号:US20190267765A1

    公开(公告)日:2019-08-29

    申请号:US16404098

    申请日:2019-05-06

    申请人: Schleifring GmbH

    IPC分类号: H01R39/58

    摘要: A slip ring unit comprises a brush block with multiple brushes rotatable against a module with multiple sliding tracks. A position encoder is connected to the brush block and the module, for detecting the relative position between the brush block and the module. An evaluation unit receives signals from the position encoder and generates a position-dependent signal indicating wear. The evaluation unit has multiple wear counters assigned to multiple positions and/or sections of the slip ring. If a movement is detected within a certain section, the related wear counter is incremented to allow to monitor wear at slip rings that are not continuously rotating.

    Propeller assembly having a brush block assembly

    公开(公告)号:US10301029B2

    公开(公告)日:2019-05-28

    申请号:US15156664

    申请日:2016-05-17

    发明人: Mark R. Plickys

    摘要: A brush wear indicating arrangement is provided. The brush wear indicating arrangement includes an insert, a first electrically conductive brush, and a wear indicator. The insert is disposed within a brush block housing and defines a first aperture. The first electrically conductive brush is movably engaged within the first aperture. The electrically conductive brush is configured to move outward from the first aperture as a wear surface of the first electrically conductive brush wears. The wear indicator is coupled to the first electrically conductive brush. The wear indicator is configured to extend beyond a first insert face of the insert as wear condition of the wear surface of the first electrically conductive brush exceeds a wear threshold.

    Brush holder apparatus and system

    公开(公告)号:US09647404B2

    公开(公告)日:2017-05-09

    申请号:US14300329

    申请日:2014-06-10

    摘要: A brush holder apparatus includes a stationary support member having at least one groove, and a fork electrical connector. The stationary support member has a conductive bar configured to pass through a portion of the stationary support member's main body. The conductive bar is configured to provide electrical conductivity with a collector mount and the fork electrical connector. A brush retainment member is configured to be releasably affixed to the stationary support member. The brush retainment member has at least one rail configured to slide along the at least one groove, and a knife electrical connector configured to mate with the fork electrical connector. The stationary support member is configured for electrical connection to a collector mount and the brush retainment member is configured to retain at least one brush.