公开(公告)号：US20240328429A1

公开(公告)日：2024-10-03

申请号：US18735395

申请日：2024-06-06

Applicant: ABB SCHWEIZ AG

Inventor： Xiaoliang Zhou ,  Yang Xu ,  Weimin Li

IPC: F04D29/28 ,  F04D1/00 ,  H02K9/06

CPC classification number: F04D29/281 ,  F04D1/00 ,  H02K9/06

Abstract: An electrical machine that includes a centrifugal fan. The centrifugal fan is for cooling an electrical machine and configured to rotate around a rotating axis. The centrifugal fan includes a first plate with an air inlet configured to face a rotor of the electrical machine to receive air; a second plate spaced apart from the first plate in a direction parallel to the rotating axis (R); a plurality of first blades arranged between the first plate and the second plate; and a plurality of second blades arranged on a side of the second plate away from the first plate and configured to reduce an air pressure in vicinity of the second plate.