公开(公告)号：US10079528B2

公开(公告)日：2018-09-18

申请号：US15116690

申请日：2015-01-23

Applicant: GRUNDFOS HOLDING A/S

Inventor： Christian Wolf

IPC: H02K11/01 ,  H02M7/00 ,  H05K9/00 ,  H02K11/33 ,  H02K5/24 ,  H02M5/297 ,  H02P27/06

CPC classification number: H02K11/01 ,  H02K5/24 ,  H02K11/33 ,  H02M5/297 ,  H02M7/003 ,  H02P27/06 ,  H05K9/0026 ,  H05K9/0037

Abstract: A frequency converter includes an enclosure, in which electrical and electronic components (5, 6, 7, 22) are arranged and which at least partly is designed as a Faraday cage. At least two Faraday cages (4, 9, 15, 29) are provided within the enclosure, in order to improve the electromagnetic compatibility (EMC).

公开(公告)号：US10697649B2

公开(公告)日：2020-06-30

申请号：US15532238

申请日：2015-03-10

Applicant: Grundfos Holding A/S

Inventor： René Stig Bergqvist ,  Christian Wolf ,  Jens Milthers

IPC: F24D19/10 ,  F04D13/06 ,  F04D15/00 ,  F24D3/10 ,  H04Q9/00

Abstract: An electronic converter unit for retrofitting to an external part of a housing of a pump unit is described. The housing comprises a light source for emitting light to display an operating status of the pump unit. The electronic converter unit comprises: a photo detector for measuring light emitted from the light source of the pump unit, a converter unit for converting optical signals to electrical signals, and transmitting means for wirelessly transmitting the electrical signals to an external communication unit.