US 11,955,867 B2
Liftable brush holder system able to operate statically and corresponding rotary electric machine
Cesar Luis Pinter, Jaragua do Sul (BR); Nilson Sacht, Jaragua do Sul (BR); and Alini Emmanuele Gracinski, Jaragua do Sul (BR)
Assigned to WEG EQUIPAMENTOS ELETRICOS S.A., Jaraguá do Sul (BR)
Appl. No. 17/595,558
Filed by WEG EQUIPAMENTOS ELETRICOS S.A., Jaraguá do Sul (BR)
PCT Filed May 22, 2019, PCT No. PCT/BR2019/050187
§ 371(c)(1), (2) Date Nov. 18, 2021,
PCT Pub. No. WO2020/232516, PCT Pub. Date Nov. 26, 2020.
Prior Publication US 2022/0247256 A1, Aug. 4, 2022
Int. Cl. H02K 5/14 (2006.01)
CPC H02K 5/14 (2013.01) 17 Claims
OG exemplary drawing
 
1. A liftable brush holder system comprising a motor that drives a speed reducer, the speed reducer driving a shaft that moves a disc, wherein the disc is connected to a brush holder comprising sides, and wherein the disc independently moves the sides of the brush holder, each side of the brush holder having a plurality of brushes and a brush support, wherein the brushes abut a slip ring, wherein the disc is connected to a short-circuit bushing, and
wherein the disc has an upper eccentric slot and a lower eccentric slot arranged on opposite sides of the disc and offset by an angle between 160° to 200°.