公开(公告)号：US20210115991A1

公开(公告)日：2021-04-22

申请号：US16981900

申请日：2019-03-15

Applicant: AB Dynamoborstfabriken

Inventor： Erik Björklund

IPC: F16D66/02 ,  F16D65/092

Abstract: A graphite material device (1), wherein the graphite material device is provided, internally and/or externally, with at least one conductive pattern (2) and/or at least one sensor (2) and wherein the graphite material device is used as any one of a carbon brush, a brake disc, a bushing and a bearing.

公开(公告)号：US20200313497A1

公开(公告)日：2020-10-01

申请号：US16767533

申请日：2018-11-28

Applicant: AB Dynamoborstfabriken

Inventor： Magnus Rehn ,  Erik Björklund

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

Abstract: 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.

公开(公告)号：US11566675B2

公开(公告)日：2023-01-31

申请号：US16981900

申请日：2019-03-15

Applicant: AB Dynamoborstfabriken

Inventor： Erik Björklund

IPC: F16D66/02 ,  F16D65/092 ,  F16D66/00

Abstract: A graphite material device (1), wherein the graphite material device is provided, internally and/or externally, with at least one conductive pattern (2) and/or at least one sensor (2) and wherein the graphite material device is used as any one of a carbon brush, a brake disc, a bushing and a bearing.

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.