公开(公告)号：US10436204B2

公开(公告)日：2019-10-08

申请号：US14292150

申请日：2014-05-30

Applicant: ABB Schweiz AG

Inventor： Darren Dale Tremelling ,  Ghanshyam Shrestha ,  Patrick Schneider ,  Zhiguo Pan

IPC: H02K9/06 ,  F04D19/00 ,  H02K9/14 ,  F04D25/06 ,  H02K21/22 ,  H02K3/26 ,  F04D29/58

Abstract: The subject matter described herein includes a fan assembly for cooling an electric machine and an electric machine incorporating such a fan assembly. One exemplary fan assembly according to the subject matter described herein includes a first fan annulus for surrounding a portion of an electric machine. The fan assembly further includes a fan drive circuit for driving the first fan annulus separately from a drive mechanism of the electric machine. The first fan annulus is configured to be, when rotating to cool the electric machine, mechanically disconnected from a housing and a rotor of the electric machine and separated from the housing by radial gap.

公开(公告)号：US09666977B2

公开(公告)日：2017-05-30

申请号：US14812648

申请日：2015-07-29

Applicant: ABB Schweiz AG

Inventor： Yu Du ,  Emanuele Borla ,  Rajib Mikail ,  Hongrae Kim ,  Patrick Schneider

IPC: H01R13/53 ,  H01F27/00 ,  H01R13/66

CPC classification number: H01R13/53 ,  H01F27/00 ,  H01R13/6633

Abstract: Technologies for providing DC arc protection in a DC socket include an electromagnet positioned in the DC socket configured to produce a magnetic field. The electromagnet is positioned to be adjacent to a contact region between one or more supply terminals of a DC socket and one or more prongs of a DC plug. As the DC plug is disconnected from the DC socket, a DC arc might form between one or more of the supply terminals and one or more of the prongs. The magnetic field produced by the electromagnet reduces the energy of the DC arc and reduces the time duration of the DC arc.