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公开(公告)号：US20180057309A1
公开(公告)日：2018-03-01
申请号：US15637101
申请日：2017-06-29
Applicant: KONE Corporation
Inventor： Juhamatti NIKANDER , Olli POKKINEN
Abstract: The invention relates to an elevator comprising an elevator control having a motor drive of an elevator motor driving an elevator car on an movement path, which motor drive comprising a frequency converter with a rectifier bridge designed to be connected to mains, a converter bridge for feeding the elevator motor and an intermediate DC circuit located in-between, the elevator further comprising a brake drive for supplying energy to at least two motor brakes with the brake drive being connected to the intermediate DC circuit as well as an emergency power supply battery designed to allow safe release of passengers in case of a power outage. According to the invention the battery is connected to the intermediate DC circuit, and the elevator control has a measuring circuit connected to the intermediate DC circuit and the elevator control has a battery testing module which is configured to apply a defined load to the battery and to measure the voltage of the DC circuit for a defined time period. The battery testing module comprises a comparator for comparing the measured voltage with at least one stored first threshold value, whereby the elevator control is configured to issue a replacement signal for the battery dependent on the signal of the comparator.
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公开(公告)号：US20190084793A1
公开(公告)日：2019-03-21
申请号：US16122700
申请日：2018-09-05
Applicant: KONE Corporation
Inventor： Arto NAKARI , Olli POKKINEN , Juhamatti NIKANDER
IPC: B66B1/30 , B66B5/00 , B66B5/02 , G05B19/048 , B66B1/32
Abstract: The invention relates to a transport conveyor drive having a rectifier and an inverter which are connected via a DC link, whereby the inverter comprises power switches for suppling electric power to an transport conveyor motor, comprising a motor controller for controlling the power switches of the inverter which is configured to produce control pulses in the control poles of the power switches, at least one safety signal interface, which is adapted to receive safety signals from a safety controller of the transport conveyor, and a brake control circuit having an output for supplying power to a brake coil of an electromagnetic brake, wherein the motor controller is referenced to a first bus bar in the DC link, at least one STO circuit is connected between the motor controller and each of the power switches of at least one half bridge of the inverter, the STO circuit being referenced to the first bus bar of the DC link and is configured to transfer/cut the control pulses to the power switches, a galvanically isolated power supply for the STO circuit is connected between the safety signal interface and the STO circuit, such that an output terminal of the isolated power supply is referenced to the same bus bar of the DC link as the motor controller, the isolated power supply being controlled via at least one safety signal received via the safety signal interface, and/or the brake control circuit comprising a transformer with a primary and a secondary side, the transformer primary side being referenced to a/the first bus bar (DC-, -) of the DC link and the secondary side being configured to be connected to a brake coil of an transport conveyor brake, and an isolated power supply is connected between the safety interface and the brake controller to supply power to the brake controller, whereby an output terminal of the isolated power supply is referenced to the same bus bar of the DC link as the brake controller.
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Patent Agency Ranking
公开(公告)号：US20240132325A1
公开(公告)日：2024-04-25
申请号：US18402482
申请日：2024-01-02
Applicant: KONE Corporation
Inventor： Arto NAKARI , Olli POKKINEN , Teppo VUORIO
CPC classification number: B66B1/32 , B66B1/3492 , B66B1/36 , B66B5/02
Abstract: A method includes monitoring position and/or movement of an elevator car in a standby mode of a braking arrangement, and activating the braking arrangement from the standby mode in response to a detection of a change in the position or of the movement. An elevator and an electric power converter are also disclosed.
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公开(公告)号：US20190023531A1
公开(公告)日：2019-01-24
申请号：US16137736
申请日：2018-09-21
Applicant: Kone Corporation
Inventor： Olli POKKINEN , Teppo VUORIO , Arto NAKARI
CPC classification number: B66B5/027 , B66B5/0031 , B66B5/044 , B66B5/06
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.
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公开(公告)号：US20190248626A1
公开(公告)日：2019-08-15
申请号：US16255108
申请日：2019-01-23
Applicant: Kone Corporation
Inventor： Olli POKKINEN , Arto Nakari
Abstract: The invention relates to an elevator comprising an elevator motor and an elevator drive comprising a backup power supply and an emergency drive module to enable release of trapped passengers in case of a power fault, based on the energy of the backup power supply, whereby the elevator drive comprises a drive housing and the backup power supply is located in a separate backup module which is releasably supported in a mounting position at the drive housing of the elevator drive, which backup module comprises an insulated backup module housing and an electric interface which connects to a complementary interface of the elevator drive located at the drive housing.
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公开(公告)号：US20190135585A1
公开(公告)日：2019-05-09
申请号：US16172386
申请日：2018-10-26
Applicant: KONE Corporation
Inventor： Arto NAKARI , Olli POKKINEN
Abstract: An elevator includes an elevator motor; a motor drive for the elevator motor having a frequency converter comprising a rectifier bridge, an inverter bridge and a DC link in between, which frequency converter is controlled via a controller, the rectifier bridge being connected to AC mains via three feed lines comprising chokes, and the rectifier bridge being realised via controllable semiconductor switches; a contactor being located between the feed lines and AC mains; a backup power supply at least for emergency drive operation; and an emergency control for performing an automatic emergency drive. The backup power supply is via a first switch connectable with only a first of said feed lines. A second and/or third of the feed lines is, via a second switch, connectable as power supply to a car door arrangement, the first switch, as well as the second switch, are controlled by the emergency control, and the emergency control is connected to a manual drive circuit having a manual drive switch for a manual rescue drive.
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公开(公告)号：US20180090925A1
公开(公告)日：2018-03-29
申请号：US15643786
申请日：2017-07-07
Applicant: Kone Corporation
Inventor： Pasi RAASSINA , Juhamatti NIKANDER , Pasi RINNESAARI , Ari-Pekka LAHTINEN , Arto NAKARI , Olli POKKINEN
CPC classification number: H02H7/0833 , B66B1/30 , B66B5/0031 , B66B9/00 , B66B11/043 , H02H1/0007 , H02H7/09 , H02H7/1216 , H02M5/4585 , H02P27/06
Abstract: The invention relates to a motor drive comprising a rectifier bridge for connection with mains, a converter bridge configured to be connected with an elevator motor and an intermediate DC circuit in-between, whereby between a positive and a negative branch of the intermediate DC circuit at least one capacitor and/or battery is connected,whereby at the mains side of the rectifier bridge a controlled main relay with contacts is arranged, which are configured to connect or disconnect the rectifier bridge with the corresponding mains phase, characterized in that the motor drive comprises a charging circuit being connected between the mains and the rectifier bridge and/or intermediate DC circuit, which charging circuit comprises at least one charging switch connected in series with at least one current limiting component, and which motor drive comprises a voltage sensor connected between the positive and the negative branch of the intermediate DC circuit, which voltage sensor is connected to a fault evaluation circuit comprising at least one reference value and a comparator, which evaluation circuit is configured compare the actual sensor signal of the voltage sensor to the reference value and to operate the main relay dependent on the comparison result.
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