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公开(公告)号：US11511965B2
公开(公告)日：2022-11-29
申请号：US16796674
申请日：2020-02-20
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 including 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 including chokes, and the rectifier bridge being realised via controllable semiconductor switches, an isolation relay being located between the feed lines and AC mains, a backup power supply at least for emergency drive operation, an emergency control for performing an automatic emergency drive, the backup power supply is via a first switch connectable with only a first of the 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. The elevator includes a first feedback circuit configured to provide to the emergency control first information indicating the switching state of the isolation relay, a second feedback circuit which is configured to provide to the emergency control second information indicating switching state of the first switch. The emergency control is configured to selectively allow or prevent the emergency drive operation on the basis of the first information and the second information.
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公开(公告)号：US11431051B2
公开(公告)日：2022-08-30
申请号：US16439942
申请日：2019-06-13
Applicant: Kone Corporation
Inventor： Arto Nakari , Olli Pokkinen
IPC: H01M6/46 , H01M50/20 , H01M10/0525 , H01M50/502
Abstract: The invention relates to a battery pack, comprising a plurality of battery cells arranged consecutively. Each of said battery cells comprise a positive and a negative terminal on opposite sides of the battery cell, the battery cells being electrically connected in series with each other, wherein the terminals of the plurality of battery cells are arranged on two opposite sides of the battery pack such that positive and negative terminals of the consecutive battery cells are on both sides of the battery pack by turns next to each other. The battery pack further comprises a first and a second printed circuit board portion arranged on said two opposite sides of the battery pack, respectively. The first and the second printed circuit board portions comprise connection interfaces arranged next to the terminals of the battery cells. The first and the second printed circuit board portions comprise signal traces connected to the terminals of the battery cells via the connection interfaces. The battery pack further comprises a third printed circuit board portion arranged next to the battery cells and extending between the first and the second printed circuit board portions, such that the battery cells are located in a channel defined by the first, the second and the third printed circuit board portions. The third printed circuit board portion comprises a battery pack condition management unit connected to the signal traces of the first and the second printed circuit board portion.
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公开(公告)号：US10723589B2
公开(公告)日：2020-07-28
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：US20190135584A1
公开(公告)日：2019-05-09
申请号：US16168488
申请日：2018-10-23
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 including 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 including chokes, and the rectifier bridge being realised via controllable semiconductor switches; a contactor being located between the feed lines and AC mains; and a backup power supply at least for emergency drive operation. An emergency control is associated with the motor drive, which emergency control is configured to perform an automatic emergency drive. The emergency control is connected to a manual drive circuit having a manual drive switch for a manual rescue drive. The elevator includes a motion sensor connected to the emergency control, whereby the emergency control is configured to activate a brake and/or gripping device of the elevator in case the car speed during a manual rescue drive exceeds a predetermined threshold value.
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