公开(公告)号：US20180148297A1

公开(公告)日：2018-05-31

申请号：US15570463

申请日：2015-04-30

Applicant: Dirk H. TEGTMEIER ,  Otis Elevator Company

Inventor： Dirk H. Tegtmeier ,  Peter Herkel

IPC: B66B1/46 ,  B66B5/00

CPC classification number: B66B1/466 ,  B66B1/461 ,  B66B5/0087

Abstract: Embodiments as disclosed herein provide a car operation panel for commanding travel of an elevator car from a boarding landing to a destination landing during normal operation of an elevator system. The car operation panel has a plurality of car operation switches to be operated by a passenger from inside of the elevator car during normal operation of the elevator system. The car operation panel is mechanically convertible such as to switch the car operation panel from a first configuration corresponding to the normal operation mode to a second configuration corresponding to an inspection and maintenance operation mode. The car operation panel, when switched to the second configuration, allows manual control of the elevator car to travel in up direction and/or in down direction by operating at least a part of the car operation switches of the car operation panel.

公开(公告)号：US09938115B2

公开(公告)日：2018-04-10

申请号：US15104810

申请日：2013-12-19

Applicant: Otis Elevator Company

Inventor： Juergen Gewinner ,  Peter Herkel

IPC: B66B1/30 ,  B66B1/34 ,  B66B5/00 ,  G01R19/165 ,  B66B9/00 ,  B66B1/28

CPC classification number: B66B1/30 ,  B66B1/28 ,  B66B1/3446 ,  B66B5/0031 ,  B66B5/0087 ,  B66B9/00 ,  G01R19/165

Abstract: A system and method for providing a protective extra low voltage power supply in an elevator system (2) is disclosed. The power supply system (10) may include a switch mode power supply (12) configured to provide an output voltage, a first voltage monitor (18) and a second voltage monitor (20). Each of the first voltage monitor (18) and the second voltage monitor (20) may be configured to receive the output voltage and determine an over-voltage condition at the switch mode power supply (12).

公开(公告)号：US20170283212A1

公开(公告)日：2017-10-05

申请号：US15509643

申请日：2014-09-12

Applicant: Otis Elevator Company

Inventor： Peter Herkel ,  Frank Kirchhoff

IPC: B66B1/32 ,  B66B5/02 ,  B66B11/00

CPC classification number: B66B1/32 ,  B66B5/02 ,  B66B5/027 ,  B66B11/0045

Abstract: An elevator brake control system (10) is described, in particular for controlling an elevator brake in a machine roomless elevator, the elevator including a drive machine drivingly coupled to an elevator car for moving the elevator car between a plurality of landings in a hoistway, and an elevator brake having at least an engaged condition for holding the elevator car at a fixed position in the hoistway, and a released condition for allowing the elevator car to move along the hoistway; the elevator brake control system (10) comprising a first safety device (T1) and a second safety device (T2), each of the first safety device (T1) and the second safety device (T2) responsive to detection of a failure in any sub-system of the elevator, such as to bring the elevator brake into its engaged condition in response to detection of such failure; wherein each of the first safety device (T1) and the second safety device (T2) comprises a power semiconductor switching device.