公开(公告)号：US10450164B2

公开(公告)日：2019-10-22

申请号：US16137736

申请日：2018-09-21

Applicant: Kone Corporation

Inventor： Olli Pokkinen ,  Teppo Vuorio ,  Arto Nakari

IPC: B66B5/02 ,  B66B5/00 ,  B66B5/06 ,  B66B5/04

Abstract: The invention relates to an arrangement for releasing the operating brake of an elevator in an emergency situation and for driving an elevator car of the elevator to a floor level, comprising at least one electric operating brake of the elevator as well as a brake release lever, which brake release lever is connected with the brake via a mechanical transmission means, which arrangement further comprises an overspeed governor connected with a gripping device of the elevator car. According to the invention in between the brake release lever and the brake a coupling device is arranged, which coupling device is controlled by the overspeed governor. Via this means the car velocity is controlled also during release of trapped passengers.

公开(公告)号：US20220128606A1

公开(公告)日：2022-04-28

申请号：US17469547

申请日：2021-09-08

Applicant: KONE Corporation

Inventor： Teppo Vuorio ,  Juhamatti Nikander

IPC: G01R19/165 ,  G01R19/04 ,  B66B5/00 ,  B66B25/00

Abstract: A method for detecting a loss or an undervoltage condition of phase of an electric converter unit, wherein the method comprises: determining an extremum value, such as a maximum and/or a minimum value, of a phase voltage of the electric converter unit for at least one fundamental period of the phase voltage, and comparing the extremum value to a first threshold value, and if, based on the comparison, a first threshold criterion related to the first threshold value is satisfied, then determining the loss or the undervoltage condition of phase.

公开(公告)号：US11815535B2

公开(公告)日：2023-11-14

申请号：US17469547

申请日：2021-09-08

Applicant: KONE Corporation

Inventor： Teppo Vuorio ,  Juhamatti Nikander

IPC: G01R11/63 ,  G01R19/165 ,  B66B5/00 ,  B66B25/00 ,  G01R19/04

CPC classification number: G01R19/16547 ,  B66B5/0018 ,  B66B25/006 ,  G01R19/04

Abstract: A method for detecting a loss or an undervoltage condition of phase of an electric converter unit, wherein the method comprises: determining an extremum value, such as a maximum and/or a minimum value, of a phase voltage of the electric converter unit for at least one fundamental period of the phase voltage, and comparing the extremum value to a first threshold value, and if, based on the comparison, a first threshold criterion related to the first threshold value is satisfied, then determining the loss or the undervoltage condition of phase.

公开(公告)号：US11567138B2

公开(公告)日：2023-01-31

申请号：US17021394

申请日：2020-09-15

Applicant: Kone Corporation

Inventor： Teppo Vuorio ,  Juhamatti Nikander

IPC: G01R31/00 ,  G01R31/388 ,  G01R31/36 ,  G01R31/367

Abstract: A method for testing a capacity of a drive rescue battery includes opening a first switching device and second switching device to disconnect a LCL filter from AC mains and form a test load for testing the capacity of the drive rescue battery while disconnecting one of the LCL filter capacitors associated with a third phase from the test load, the test load including a series connection from one of the downstream LCL filter inductors and the LCL filter capacitors associated with the first phase to one of the LCL filter capacitors and the downstream LCL filter inductors associated with the second phase; and determining at least one of a voltage or a current of the drive rescue battery resulting from the test load.