公开(公告)号：US3710160A

公开(公告)日：1973-01-09

申请号：US3710160D

申请日：1971-08-12

Applicant: DYNAMICS CORP AMERICA

Inventor： VOGLESONGER H

IPC: H01R39/40 ,  H01R39/58 ,  H02K13/00

CPC classification number: H01R39/40 ,  H01R39/58

Abstract: A brush holder assembly for an electric motor wherein during the useful life of the brush a spring wire clip bears against the brush through a slot in the brush housing to improve mechanical rigidity and electrical conductivity. When the brush wears to the extent that it no longer extends beneath the slot, the spring clip extends further down into the slot and obstructs the brush channel thereby preventing further extension of the brush compression spring and its eventual contact with the motor commutator.

Abstract translation: 一种用于电动机的电刷架组件，其中在电刷的使用寿命期间，弹簧线夹通过电刷壳体中的狭槽抵靠电刷，以提高机械刚度和导电性。 当刷子磨损到其不再在槽下方延伸的程度时，弹簧夹进一步向下延伸到槽中并阻塞刷通道，从而防止刷压缩弹簧的进一步延伸并且其最终与电动机换向器接触。

公开(公告)号：US2813208A

公开(公告)日：1957-11-12

申请号：US42443354

申请日：1954-04-20

Applicant: RITTER GEORGE D

Inventor： RITTER GEORGE D

IPC: H01R39/58

CPC classification number: H01R39/58

公开(公告)号：US1891634A

公开(公告)日：1932-12-20

申请号：US50663531

申请日：1931-01-05

Applicant: ELECTROLUX CORP

Inventor： FREDRIK CARLSTEDT

IPC: H01R39/58

CPC classification number: H01R39/58

公开(公告)号：US1821405A

公开(公告)日：1931-09-01

申请号：US45603930

申请日：1930-05-27

Applicant: HEINRICH RIESE

Inventor： HEINRICH RIESE

IPC: H01R39/58

CPC classification number: H01R39/58

公开(公告)号：US20240291217A1

公开(公告)日：2024-08-29

申请号：US18660394

申请日：2024-05-10

Applicant: CUTSFORTH, INC.

Inventor： ROBERT S. CUTSFORTH ,  DUSTIN L. CUTSFORTH ,  DOUGLAS CHRISTOPHER BRUEY ,  MICHAEL LEE SCHAAF ,  DAVID WILLIAM DRURY HARRISON

IPC: H01R39/58 ,  G01B21/22 ,  H01R39/26 ,  H01R39/38 ,  H02K11/20

CPC classification number: H01R39/58 ,  G01B21/22 ,  H01R39/26 ,  H01R39/38 ,  H02K11/20

Abstract: A system for monitoring the wear state of a carbon brush of a brush holder assembly in which the length of the carbon brush is diminished from an initial length as an end of the carbon brush wears away during use. The system includes a wear state monitor, including a sensor, coupled to the carbon brush. The wear state monitor is configured to rotate as the length of the carbon brush diminishes. The sensor is configured to measure an angular displacement of the wear state monitor as the wear state monitor rotates. The measured angular displacement of the wear state monitor correlates to an amount of diminution in the length of the carbon brush.

公开(公告)号：US12003067B2

公开(公告)日：2024-06-04

申请号：US17529521

申请日：2021-11-18

Applicant: CUTSFORTH, INC.

Inventor： Robert S. Cutsforth ,  Dustin L. Cutsforth ,  Douglas Christopher Bruey ,  Michael Lee Schaaf ,  David William Drury Harrison

IPC: H01R39/58 ,  G01B21/22 ,  H01R39/26 ,  H01R39/38 ,  H02K11/20

CPC classification number: H01R39/58 ,  G01B21/22 ,  H01R39/26 ,  H01R39/38 ,  H02K11/20

Abstract: A system for monitoring the wear state of a carbon brush of a brush holder assembly in which the length of the carbon brush is diminished from an initial length as an end of the carbon brush wears away during use. The system includes a wear state monitor, including a sensor, coupled to the carbon brush. The wear state monitor is configured to rotate as the length of the carbon brush diminishes. The sensor is configured to measure an angular displacement of the wear state monitor as the wear state monitor rotates. The measured angular displacement of the wear state monitor correlates to an amount of diminution in the length of the carbon brush.

公开(公告)号：US20230411914A1

公开(公告)日：2023-12-21

申请号：US18032224

申请日：2021-09-16

Applicant: ALEXSAVA Holdings Limited

Inventor： Anthony L. Morgan

IPC: H01R39/58 ,  H01R39/38

CPC classification number: H01R39/58 ,  H01R39/381

Abstract: Disclosed herein is a brush wear indicator comprising and brush (3) moveable within a holder (2). The brush (3) is urged against a collector surface (10) of a rotor by a spring (4) which is mounted to a bracket (6) supported by the holder (2). A proximity sensor (5) is mounted to either a) the spring (4) or the brush (3), or b) a non-moveable part of the indicator which includes the bracket and configured to determine the distance to a) the non-moveable parts or b) the spring (4) or brush (3), respectively. The proximity sensor (5) in electrical communication with a CPU configured to determine the amount of wear that has occurred to the at least one brush (3) depending on the distance determined by the sensor (5) between the spring (4) or the brush (3) and the non-moveable parts.

公开(公告)号：US20220209481A1

公开(公告)日：2022-06-30

申请号：US17695138

申请日：2022-03-15

Applicant: CUTSFORTH, INC.

Inventor： ROBERT S. CUTSFORTH

IPC: H01R39/58 ,  H04L43/08 ,  H04L43/04 ,  H02K11/20 ,  H01R43/00 ,  G05B23/02 ,  G06Q10/06 ,  G06Q10/08 ,  G08B21/18 ,  G05B19/4065 ,  G06Q10/10 ,  G06Q10/00 ,  H02K5/14

Abstract: Methods and systems for monitoring a brush holder assembly and/or detecting wear of a brush in a brush holder assembly are disclosed. One method includes sending data from a plurality of remote monitoring locations to a central control unit, where the data may be evaluated in order to monitor states of brushes at a plurality of remote electrical facilities. For example, multiple images of a marker tracking longitudinal movement of the brush may be acquired. A comparison of the images, for example, a comparative imaging technique, such as pixel-by-pixel comparison, may then be performed in order to evaluate a condition of the brush, such as the wear rate, wear state, or life expectancy of the brush.

公开(公告)号：US20220077641A1

公开(公告)日：2022-03-10

申请号：US17529521

申请日：2021-11-18

Applicant: CUTSFORTH, INC.

Inventor： ROBERT S. CUTSFORTH ,  DUSTIN L. CUTSFORTH ,  DOUGLAS CHRISTOPHER BRUEY ,  MICHAEL LEE SCHAAF ,  DAVID WILLIAM DRURY HARRISON

IPC: H01R39/58 ,  H02K11/20 ,  G01B21/22 ,  H01R39/26 ,  H01R39/38

Abstract: A system for monitoring the wear state of a carbon brush of a brush holder assembly in which the length of the carbon brush is diminished from an initial length as an end of the carbon brush wears away during use. The system includes a wear state monitor, including a sensor, coupled to the carbon brush. The wear state monitor is configured to rotate as the length of the carbon brush diminishes. The sensor is configured to measure an angular displacement of the wear state monitor as the wear state monitor rotates. The measured angular displacement of the wear state monitor correlates to an amount of diminution in the length of the carbon brush.

公开(公告)号：US11177716B2

公开(公告)日：2021-11-16

申请号：US16767533

申请日：2018-11-28

Applicant: AB Dynamoborstfabriken

Inventor： Magnus Rehn ,  Erik Björklund

IPC: H02K5/14 ,  H01R39/38 ,  H01R39/58

Abstract: A brush holder for electrical machines has a clamping piece with a first mounting part and a second clamping part, which when assembled define a clamping hole to be assembled around a spindle; and two brush holder arms pivotally mounted on the first mounting part of said clamping piece, and adapted to receive and retain a brush. The arms have an upper side which is opposite to a lower side facing a slip ring; at least one biasing spring to act upon said brush holder arms in such a way that said brush holder arms move pivotally towards and presses said brushes against the slip ring. A conductive wire connects the brush to the clamping piece. A brush holder arm locking mechanism is adapted to be inserted into a slot in the second clamping part. A brush locking pin retains the brush in said brush holder arm and provided in corresponding bores arranged in the brush holder arm and the brush. The brush locking pin has a pipe portion and a spring portion arranged inside the pipe and that protrudes from a slot in a wall of said pipe. The mounting part of said clamping piece is provided with a brush arm stop to limit a pivot movement of the brush holder arm towards a slip ring.