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公开(公告)号：US09802790B2
公开(公告)日：2017-10-31
申请号：US14532753
申请日：2014-11-04
Applicant: KONE Corporation
Inventor： Ari Kattainen , Pasi Raassina , Tapio Saarikoski , Lauri Stolt , Arto Nakari , Antti Kallioniemi
CPC classification number: B66B5/02 , B66B1/30 , B66B1/32 , B66B5/00 , B66B5/0031 , B66B5/06 , B66B13/22
Abstract: A drive device of an elevator includes a DC bus, a motor bridge connected to the DC bus for the electricity supply of the elevator motor, a control circuit with which control circuit the operation of the motor bridge is controlled by producing control pulses in control poles of high-side and low-side switches of the motor bridge, a brake controller, which comprises a switch for supplying electric power to an electromagnetic brake, a brake control circuit, with which the operation of the brake controller is controlled, an input circuit for the safety signal to be disconnected/connected from outside the drive device, drive prevention logic and brake drop-out logic connected to the input circuit and configured to prevent the passage of control pulses to the control poles of the high-side and/or low-side switches when the safety signal is disconnected.
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公开(公告)号：US11498806B2
公开(公告)日：2022-11-15
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：US11469749B2
公开(公告)日：2022-10-11
申请号：US15850209
申请日：2017-12-21
Applicant: Kone Corporation
Inventor： Arto Nakari
Abstract: A power controller with a cable connected remote controlling device configured to transmit a pulsed instruction signal according to a predetermined signal pattern to the power controller. The power controller determines if the instruction signal corresponds with a predetermined signal pattern. If the instruction signal corresponds with a predetermined signal pattern, the controller passes the instruction signal to switches that control power supply of an electric device.
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公开(公告)号：US11332342B2
公开(公告)日：2022-05-17
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：US11038457B2
公开(公告)日：2021-06-15
申请号：US16460707
申请日：2019-07-02
Applicant: KONE Corporation
Inventor： Olli Pokkinen , Arto Nakari
IPC: H02P29/024 , H02P27/06 , H02M7/5387 , H02H3/06 , H02H7/08 , H02H7/122 , H02H3/16
Abstract: A motor drive includes a rectifier bridge, which rectifier bridge is connected to an DC link, which is connected to an inverter bridge having phase outputs configured to be connected to an elevator motor, as well as a drive control controlling the semiconductor switches of the inverter bridge. The inverter bridge has upper semiconductor switches of the upper side connected to plus of the DC link and lower semiconductor switches of the lower side connected to minus of the DC link, the upper semiconductor switches are semiconductor switches without desaturation- and/or over-current protection whereas the lower semiconductor switches comprise a desaturation- and/or over-current protection, or vice versa. The drive control includes an earth fault control circuit which is configured to establish an earth fault test, in which each single semiconductor switch comprising a desaturation- and/or over-current protection is switched through, only one at a time, over a test time period, whereby the earth fault control circuit is configured to enable start of the motor drive only if the earth fault test has not lead to a tripping of the desaturation- and/or over-current protection of one of the semiconductor switches.
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Patent Agency Ranking
公开(公告)号：US10899579B2
公开(公告)日：2021-01-26
申请号：US15694396
申请日：2017-09-01
Applicant: KONE Corporation
Inventor： Arto Nakari
Abstract: The invention refers to an elevator brake controller, comprising a brake supply circuit comprising a rectifier with a mains input side and a DC link output side, whereby in the mains input side and/or in the DC link output side at least one fuse is connected, a brake control circuit with at least one brake coil of an elevator brake, which brake coil is connected in series with a control switch configured to be controlled by an elevator control, which series connection of brake coil and control switch is connected to the DC link, a brake safety circuit which is connected between the brake supply circuit and the brake control circuit, which brake safety circuit comprises a first safety switch being connected in series with the brake coil as well as a second safety switch which is connected in parallel to the brake coil, whereby the first and second safety switches are configured to be controlled by an elevator safety circuit. This brake controller offers an improved cut-off safety in safety relevant situations.
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公开(公告)号：US20180327215A1
公开(公告)日：2018-11-15
申请号：US15969527
申请日：2018-05-02
Applicant: KONE Corporation
Inventor： Ari Kattainen , Juha-Matti Aitamurto , Juhamatti Nikander , Arto Nakari
CPC classification number: B66B1/308 , B66B1/32 , B66B1/3423 , B66B5/02 , B66B13/22 , B66B2201/00 , G05B9/02
Abstract: The arrangement comprises a drive driving an electric motor, a contactor and a control circuit connecting a control coil of the contactor to a power supply. The control circuit comprises a manual control part provided with a manually operated first switch, and an electronical control part provided with an electronically operated second switch and a processor controlling the second switch. The first switch and the second switch are connected in series in the control circuit with the power supply and the control coil of the contactor so that de-energization of the control coil of the contactor may be done either by the first switch or by the second switch.
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公开(公告)号：US20180198441A1
公开(公告)日：2018-07-12
申请号：US15850209
申请日：2017-12-21
Applicant: Kone Corporation
Inventor： Arto Nakari
CPC classification number: H03K7/08 , B66B1/28 , B66B1/32 , B66B1/3453 , B66B1/3461 , B66B5/028 , B66B25/00 , B66B25/003 , Y02B50/225
Abstract: A power controller with a cable connected remote controlling device is disclosed. The remote controlling device is configured to transmit a pulsed instruction signal according to a predetermined signal pattern to the power controller. The power controller determines if the instruction signal corresponds with a predetermined signal pattern. If the instruction signal corresponds with a predetermined signal pattern, the controller passes the instruction signal to switches that control power supply of an electric device.
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公开(公告)号：US09873591B2
公开(公告)日：2018-01-23
申请号：US14533764
申请日：2014-11-05
Applicant: KONE Corporation
Inventor： Ari Kattainen , Pasi Raassina , Tapio Saarikoski , Lauri Stolt , Arto Nakari , Antti Kallioniemi
CPC classification number: B66B5/02 , B66B1/30 , B66B1/32 , B66B5/00 , B66B5/0031 , B66B5/06 , B66B13/22
Abstract: A brake controller, an elevator system and a method for performing an emergency stop are provided. The brake controller includes an input for connecting the brake controller to the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator, an output for connecting the brake controller to the electromagnet of the brake, a switch for supplying electric power from the DC intermediate circuit of the frequency converter driving the hoisting machine of the elevator via the output to the electromagnet of a brake, and also a processor with which the operation of the brake controller is controlled by producing control pulses in the control pole of the switch of the brake controller.
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公开(公告)号：US09776829B2
公开(公告)日：2017-10-03
申请号：US14533603
申请日：2014-11-05
Applicant: KONE Corporation
Inventor： Ari Kattainen , Pasi Raassina , Tapio Saarikoski , Lauri Stolt , Arto Nakari , Antti Kallioniemi
CPC classification number: B66B5/02 , B66B1/30 , B66B1/32 , B66B5/00 , B66B5/0031 , B66B5/06 , B66B13/22
Abstract: The invention relates to a safety arrangement of an elevator, which includes sensors configured to indicate functions that are critical to the safety of the elevator, and also a safety circuit, with which the data formed by the sensors indicating the safety of the elevator is read. The safety arrangement includes a drive device including a control circuit of a motor bridge, an input circuit for a safety signal that can be disconnected/connected from outside the drive device, and also drive prevention logic, to prevent the passage of control pulses to the control poles of high-side and/or low-side switches of the motor bridge when the safety signal is disconnected. The safety circuit brings the elevator into a state preventing a run by disconnecting the safety signal and removes the state preventing a run by connecting the safety signal.
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