公开(公告)号：US10071880B2

公开(公告)日：2018-09-11

申请号：US14768526

申请日：2013-02-21

Applicant: OTIS ELEVATOR COMPANY

Inventor： Andreas Tutat ,  Ibrahim Ia Atalmis ,  Herbert Horbrügger ,  Marvin Dehmlow

IPC: B66B1/06 ,  B66B1/30 ,  B66B11/00 ,  H01H71/10 ,  H05K1/02

CPC classification number: B66B1/302 ,  B66B1/306 ,  B66B1/308 ,  B66B11/002 ,  H01H71/10 ,  H05K1/0206 ,  H05K1/0265 ,  H05K2201/10166 ,  H05K2201/10416 ,  Y02B50/127

Abstract: A drive unit for an elevator system, the drive unit including a multilayer, power circuit board; a first DC link formed in a layer of the power circuit board; a second DC link formed in a layer of the power circuit board; a first switch having a first terminal, the first switch mounted to a surface of the power circuit board; a first via electrically coupling the first terminal to the first DC link; a second switch having a second terminal, the second switch mounted to the surface of the power circuit board; and a second via electrically coupling the second terminal to the second DC link; the first via conducting heat from the first switch to the first DC link; the second via conducting heat from the second switch to the second DC link.