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公开(公告)号：US12077410B2
公开(公告)日：2024-09-03
申请号：US18335746
申请日：2023-06-15
CPC分类号： B66B1/32 , B66B5/22 , H01F7/0221 , H02K7/1023
摘要： An electronic actuator for an elevator safety brake system, the actuator having: an electromagnet assembly; and a first magnet assembly configured for being retracted from engagement with a rail depending on an energized state of the electromagnet assembly, the first magnet assembly including: blocks spaced apart from each other, respectively defining block bodies, and elongated block legs respectively extending aft from the block bodies; and a first magnet is disposed between the block bodies; wherein the electromagnet assembly includes: a core that defines: a core body extending between core ends that are spaced apart from each other; and core stub legs respectively extending forward from the core ends that are positioned adjacent to the elongated block legs when the first magnet assembly is retracted; and a coil winding wound about bobbins that are placed over the core body, the elongated block legs are longer than the core stub legs.
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公开(公告)号：US20240239634A1
公开(公告)日：2024-07-18
申请号：US18621741
申请日：2024-03-29
申请人： KONE Corporation
发明人： Lauri STOLT , Juhamatti NIKANDER
摘要： An elevator includes a manual active dynamic braking function, which elevator includes an elevator control for operating at least one elevator car in at least one elevator driveway between landing floors in response to elevator calls, an AC elevator motor, which is able to generate power in a generator mode, a motor drive connected to the elevator control for the regulation of the speed of the elevator motor, including a frequency converter, whereby the frequency converter of the motor drive includes a rectifier bridge and an inverter bridge with semiconductor switch circuits, which rectifier bridge and inverter bridge are connected via a DC link, the motor drive further including a drive controller at least to control the semiconductor switches of the semiconductor switch circuits of the inverter bridge to regulate the elevator motor to a reference speed, whereby the semiconductor switch circuits of the inverter bridge are provided with diodes connected anti-parallel to the semiconductor switches, the motor drive including a safety logic for cutting off control pulses to the semiconductor switches, at least during power outage, at least one elevator brake is located in connection with the elevator motor and/or with a traction sheave of the elevator motor, a manual brake release lever is functionally linked to the elevator brake, movable between a rest position and at least one operating position to release the elevator brake manually. The motor drive includes a bypass switch being arranged to operate the safety logic, as to enable dynamical braking of the elevator motor by connecting the semiconductors of the semiconductor switch circuits of the inverter bridge with the drive controller, and the motor drive includes a DC supply circuit connected with the DC link, which is arranged to feed DC power at least to the drive controller and to the bypass switch to enable dynamic braking control of the semiconductor switches. The manual brake release lever is functionally connected with the bypass switch and is arranged to operate the bypass switch, when it is moved away from its rest position. Alternatively, the elevator includes a manual actuator, such as a key switch, disposed in the same location with the manual brake release lever, whereby the manual actuator is arranged to operate the manual bypass switch.
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公开(公告)号：US20240174484A1
公开(公告)日：2024-05-30
申请号：US18432514
申请日：2024-02-05
申请人： KONE Corporation
发明人： Henri WENLIN , Tapani TALONEN
CPC分类号： B66B5/0025 , B66B1/32 , B66B1/3461 , B66B5/0037
摘要： An elevator system includes an elevator car, and a hoisting machine moving the elevator car in a hoistway. To simplify maintenance work of the hoisting machine, the elevator system includes an acceleration sensor connected to the hoisting machine, and a computing unit which is responsive to a signal provided by the acceleration sensor and which sends condition data based on a predetermined processing of the signal.
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公开(公告)号：US11958719B2
公开(公告)日：2024-04-16
申请号：US18340021
申请日：2023-06-22
发明人： Yang Ge , Fusheng Zhang , Anbo Jiang , Lingyun Ma , Zhen Zhao , Jianxin Ding , Jiancong Qin , Yong Ren , Guodong Sun
摘要： The present invention relates to the field of elevator braking, in particular to an action state detection method and system for an elevator brake, comprising: acquiring matching pairs of brake linings in the same braking state; constructing normal record data sets based on the matching pairs; grouping the normal record data sets based on braking power corresponding to samples in the normal record data sets to determine a median of elevator running speed corresponding to the samples in each group; dividing the operating state levels of the elevator brake according to the size of the median; constructing a data training set; training a constructed network model to obtain a trained network model; acquiring the operating state levels of an elevator to be detected by the trained network model, evaluating the elevator brake according to the operating state levels, and controlling the elevator.
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公开(公告)号：US11958717B2
公开(公告)日：2024-04-16
申请号：US16360768
申请日：2019-03-21
申请人： KONE Corporation
发明人： Janne Rossi , Henri Wenlin , Asmo Tenhunen
IPC分类号： B66B1/32 , B66B5/00 , F16D66/00 , F16D121/20
CPC分类号： B66B1/32 , B66B5/0031 , B66B5/0037 , F16D2066/005 , F16D2121/20
摘要： An elevator brake includes a frame part including an electromagnet; a moving armature movably supported on the frame part; at least one energy storage, such as a work spring, arranged between the frame part and the moving armature; a friction lining associated with the moving armature and fitted to engage a braking surface with a normal force originating from the at least one energy storage, to brake movement of an elevator car or to hold the elevator car standstill; and a sensor system including one or more sensors mounted into the elevator brake and adapted to sense one or more operational parameters of the elevator brake and/or to directly measure normal force of the friction lining.
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公开(公告)号：US20240059522A1
公开(公告)日：2024-02-22
申请号：US18271672
申请日：2021-03-29
发明人： Yasushi OTSUKA , Hisahiro WADAYAMA
摘要： A third instruction determination unit determines a current instruction on the basis of a first current instruction determined by a first instruction determination unit (23) and a second current instruction determined by a second instruction determination unit (24). A brake control unit (25) controls a brake device (6) on the basis of the current instruction. The second instruction determination unit (24) determines the second current instruction so that the value of a current indicated by the current instruction determined by the third instruction determination unit increases stepwise when a brake switch (7) ceases to detect that the brake device (6) is in a non-braking state.
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公开(公告)号：US11767194B2
公开(公告)日：2023-09-26
申请号：US16258755
申请日：2019-01-28
发明人： Tadeusz Pawel Witczak , Craig Drew Bogli , Derk Oscar Pahlke , Nikola Trcka , Yrinee Michaelidis
摘要： An illustrative example elevator sensor device includes at least one sensor supported on a door of an elevator car. The sensor provides an output including an indication of at least movement of the door along at least one axis and movement of the elevator car along at least one axis. A processor associated with the at least one sensor receives the output and determines at least one characteristic of the movement of the door based on the indication of the movement of the door. The processor also determines a location of the elevator car where the movement of the door occurs based on the indication of movement of the elevator car.
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公开(公告)号：US20230242373A1
公开(公告)日：2023-08-03
申请号：US17973671
申请日：2022-10-26
发明人： Uwe Schönauer , Peter Herkel , Felix Donath
CPC分类号： B66B1/32 , B66B5/0031 , B66B5/16
摘要： An elevator system (201) includes an elevator car (203) arranged to move within an elevator shaft, an elevator drive (211) including a brake (208), an elevator controller (230) configured to control the elevator drive so as to control the movement of the elevator car between a plurality of landings in the elevator shaft, a position reference system (240) configured to measure a position of the elevator car within the elevator shaft, and a safety controller (232) connected to the position reference system (240) to receive car position information and configured to selectively apply the brake of the elevator drive so as to stop the elevator car. The safety controller is configured to monitor the received car position information at least when the elevator car is moving in a designated unlocking zone of a given landing with an elevator car door open and to apply the brake.
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公开(公告)号：US11649139B2
公开(公告)日：2023-05-16
申请号：US16531746
申请日：2019-08-05
发明人： Juan Antonio Illan
IPC分类号： B66B5/22 , B66B1/32 , F16D121/20
CPC分类号： B66B5/22 , B66B1/32 , F16D2121/20
摘要： An electronic safety actuator assembly for an elevator system includes a safety case vertically moveable relative to an elevator car. Also included is a safety brake disposed within the safety case. Further included is an electromagnet operatively coupleable to the elevator car. Yet further included is a link member operatively coupleable to the elevator car and to the safety brake. Also included is a magnet disposed between the electromagnet and the safety case, the magnet vertically moveable relative to the elevator car, the electromagnet switchable between an energized condition and an un-energized condition, one of the energized condition and the un-energized condition magnetically attracting the magnet to the electromagnet, the other of the energized condition and the un-energized condition magnetically repulsing the magnet away from the electromagnet, repulsion of the magnet moving the safety brake from a non-braking position to a braking position.
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公开(公告)号：US20190202658A1
公开(公告)日：2019-07-04
申请号：US16295327
申请日：2019-03-07
发明人： Amir Lotfi , Randall Keith Roberts , Ronnie E. Thebeau , Michael Garfinkel , Edward Piedra , Dennis Hanvey , Daniel Rush
摘要： A method includes determining that an elevator car is arriving at a landing at which re-leveling is anticipated; upon the elevator car arriving at the landing at which re-leveling is anticipated, initiating the at least one of a brake cycling operation and a power cycling operation to reduce elevator car sag at the landing; monitoring transfer of weight to or from the elevator car at the landing over a period of time; terminating the at least one of the brake cycling operation and the power cycling operation upon at least one of (i) the transfer of weight to or from the elevator car at the landing over the period of time being less than a threshold and (ii) the elevator car sag at the landing meeting a sag threshold.
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