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.

公开(公告)号：US20230123226A1

公开(公告)日：2023-04-20

申请号：US17907387

申请日：2021-03-10

Applicant: ABB Schweiz AG

Inventor： Hua Xu ,  Yingrui Ling ,  Yang Xu

IPC: H02K5/20 ,  H02K5/18 ,  H02K5/22

Abstract: A machine with a housing, wherein the housing has a body formed into a cylindrical structure extending along an axial direction. The housing includes a plurality of radiation ribs extending along the axial direction and disposed circumferentially outside the body. Further, the housing includes at least one pair of ventilation windows arranged to radially protrude outward from two ends of the body in the axial direction respectively, so as to dispose a part of the plurality of radiation ribs therebetween; and at least one ventilation duct arranged radially outside the radiation ribs along the axial direction and coupled to the at least one pair of ventilation windows, enabling an internal heat radiating airstream of the electric machine to flow through the ventilation duct. The radiation ribs also can be configured at the position where the ventilation duct is disposed.