EP3915920A1 - Appareil de secours et ascenseur - Google Patents

Appareil de secours et ascenseur Download PDF

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Publication number
EP3915920A1
EP3915920A1 EP21175227.4A EP21175227A EP3915920A1 EP 3915920 A1 EP3915920 A1 EP 3915920A1 EP 21175227 A EP21175227 A EP 21175227A EP 3915920 A1 EP3915920 A1 EP 3915920A1
Authority
EP
European Patent Office
Prior art keywords
elevator
rescue device
emergency rescue
power unit
controller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21175227.4A
Other languages
German (de)
English (en)
Other versions
EP3915920B1 (fr
Inventor
Elumalai ADHIKESAVAN
Krishnan Saravanan
Raj Mohan
Na NANDHAKUMARAN
Ps JAYARAM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kone Corp
Original Assignee
Kone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kone Corp filed Critical Kone Corp
Publication of EP3915920A1 publication Critical patent/EP3915920A1/fr
Application granted granted Critical
Publication of EP3915920B1 publication Critical patent/EP3915920B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415—Control system configuration and the data transmission or communication within the control system
    • B66B1/3423—Control system configuration, i.e. lay-out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415—Control system configuration and the data transmission or communication within the control system
    • B66B1/3446—Data transmission or communication within the control system
    • B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations

Definitions

  • the subject matter described herein relates to elevators and in particular to elevator rescue devices.
  • an operational anomaly such as a power failure interrupts elevator travel, causing stopping of elevator car between landings. In that case elevator car needs to be relocated to a landing to release passengers from the car. This operation is referred to as rescue operation.
  • hoisting motor and / or hoisting machinery brakes may be energized by a battery-operated emergency rescue device to move the car.
  • emergency rescue device In machine-room less elevators emergency rescue device is usually disposed inside an elevator shaft, for example in upper part of the shaft, close to the elevator hoisting machinery. In that case the rescue device is not easily accessible. In case of a failure, service person must enter elevator shaft and try to debug the rescue device for example from elevator car roof.
  • the objective of the present invention is to solve at least partially the above-identified problems. Therefore the invention discloses an elevator according to claim 1. Some preferred embodiments of the invention are described in the dependent claims. Some inventive embodiments, as well as inventive combinations of various embodiments, are presented in the description and in the drawings.
  • an elevator comprising an elevator car vertically movable in an elevator shaft, an elevator hoisting machinery disposed in the elevator shaft, an emergency rescue device disposed in the elevator shaft, an elevator controller disposed at an elevator landing and a communication channel between the elevator controller and the emergency rescue device.
  • the emergency rescue device comprises a battery acting as a voltage supply of the emergency rescue device during an operational anomaly of the elevator and a power unit connected to the battery and configured for energizing at least one of elevator hoisting motor and hoisting machinery brakes to relocate the elevator car during an operational anomaly of the elevator.
  • the emergency rescue device further comprises a sensor array comprising at least one sensor configured for measuring one or more operational parameters of the emergency rescue device and a processing unit connected to the sensor array and configured to generate a rescue device performance indicator based on the information received from sensor array and to send the performance indicator to the elevator controller. This means that debugging of the emergency rescue device may be performed from a landing, outside of the elevator shaft.
  • the elevator controller is disposed next to a landing door or inside a landing door frame.
  • the emergency rescue device comprises a contactor for separating the emergency rescue device from the mains.
  • the operational parameter of the emergency rescue device is one of contactor status, status of a power transistor of the power unit, temperature of the power unit, battery current, battery voltage, battery power, output voltage of the power unit, output current of the power unit, phase failure of the power unit.
  • the elevator controller is configured to display a fault code based on the performance indicator.
  • the elevator controller may comprise a display, or it may be connectable with an external display device, such as a mobile device to display the information.
  • the elevator controller comprises a manual input for receiving a debug command.
  • the elevator controller is configured to send an energizing command to the power unit responsive to receiving a debug command. This can mean that debug commands for emergency rescue device can be provided from a landing, outside of elevator shaft.
  • the elevator controller comprises a remote connection to a cloud or to a remote server.
  • the elevator controller is configured to send the performance indicator to a cloud or a remote server via a remote connection.
  • the cloud or remote server may perform computing operations based on a performance indicator or a sequence of performance indicators to diagnose degraded condition and schedule a service request before failure of the emergency rescue device.
  • degraded condition of the emergency rescue device may be diagnosed early and adequate service may be provided to minimize elevator downtime.
  • the elevator controller is configured to receive a fault code or maintenance instruction as a response from the cloud or remote server, and to display said fault code or maintenance instruction received. Therefore elevator may be diagnosed remotely in the remote server or in the cloud on the basis of the performance indicators, and the diagnostics result may be utilized by service personnel on elevator site.
  • Fig. 1 shows an elevator according to an exemplary embodiment.
  • Elevator comprises an elevator car 1 and a counterweight (not shown) suspended on hoisting ropes.
  • Hoisting ropes run via a traction sheave of an elevator hoisting machinery 9.
  • Hoisting machinery 9 has electrical motor 19, preferably a permanent magnet motor, which provides driving torque to move the elevator car 1.
  • Power signals for operating the electrical motor 19 are generated by the inverter 18.
  • Hoisting machinery 9 comprises brakes 10, which are controlled by an actuator, such as an electromagnetic actuator. Brakes 10 are engaged to hold elevator car 1 standstill in elevator shaft and opened to enable elevator car 1 movement. Opening of the brakes 10 takes place by supplying electrical power to the actuators. Brakes 10 are engaged by interrupting the power supply. In normal operation, electrical power for the motor 19 and the brakes 10 is supplied from mains. Control commands for operating the elevator are generated by an elevator controller 3.
  • the elevator of Fig. 1 comprises an emergency rescue device 2.
  • the emergency rescue device 2, as well as the elevator hoisting machinery 9 and the inverter 18 are disposed in upper portion of elevator shaft 4. Elevator controller 3 is disposed at an elevator landing 5.
  • a communication channel 6 is arranged between the elevator controller 3 and the emergency rescue device 2.
  • Communication channel 6 may be in the form of any suitable wired or wireless communication bus, such as serial data bus or parallel data bus. Exemplary embodiments of the communication bus are CAN bus, LON bus and ethernet bus.
  • control commands and / or debug commands may be provided from the elevator controller 3 to the emergency rescue device 2.
  • performance information of the rescue device 2 may be provided from the energy rescue device 2 to the elevator controller 3 via the communication channel 6 such that debugging and / or condition monitoring of the emergency rescue device 2 may be performed from outside of the elevator shaft 4.
  • the emergency rescue device 2 comprises a battery 7, which provides voltage supply for the electronics of the emergency rescue device 2 as well as power supply to the hoisting motor 19 and / or the hoisting machinery brakes 10 during specific operational anomalies of the elevator.
  • the emergency rescue device 2 of Fig. 1 comprises a power unit 8 connected to the battery 7.
  • Power unit 8 comprises power components, such as contactor and power transistors.
  • the emergency rescue device 2 further comprises a sensor array 11 and a processing unit 12 connected to the sensor array 11.
  • the sensor array 11 comprises at least one sensor configured for measuring one or more operational parameters of the emergency rescue device 2.
  • Sensor may be an auxiliary contact of the contactor 17, indicating contactor 17 status, i.e. actual open or closed state.
  • Sensor may be voltage or current meter indicating status of power transistor of the power unit 8 (e.g. to determine transistor failure or short circuit)
  • Sensor may be a temperature sensor indicating temperature of the power unit 8 and / or the battery 7 (e.g.
  • Sensor may be a voltage or current meter indicating voltage or current of the battery 7 (e.g. to determine possible over - or undervoltage of the battery 7 under load condition or in an overcurrent situation), or a power meter indicating output power of the battery 7 (e.g. power supply capability of the battery 7). Additionally or alternatively, the sensor may be a voltage or current meter indicating output voltage or current of the power unit 8 or- if the power unit has a multi-phase AC output - a phase failure of the power unit 8.
  • the processing unit 12 is configured to generate a rescue device performance indicator based on the information received from sensor array 11 and addressing at least some of the above-identified defects. Further, processing unit 12 is configured to send the performance indicator to the elevator controller 3.
  • the elevator controller 3 may be configured to display a fault code based on the performance indicator.
  • the elevator controller 3 may comprise a display, or it may be connectable with an external display device, such as a mobile device to display the information.
  • the drive unit of elevator hoisting machinery (e.g. motor inverter 18 and brake control unit) is part of the emergency rescue device 2.
  • the drive unit is configured for providing electrical power to hoisting machinery brakes 10 and motor 19 from the battery 7 when an operational anomaly is determined.
  • the emergency rescue device 2 may comprise a contactor 17 or a relay for separating the drive unit from mains and connecting with the battery 7 in case of an operational anomaly.
  • the emergency rescue device 2 is a separate unit from the drive unit.
  • the elevator controller 3 comprises a remote connection 15 to a cloud or to a remote server 16.
  • Such remote connection may be an internet connection via a router, or a wireless cellular network.
  • the elevator controller 3 is configured to send a performance indicator or a sequence of performance indicators to a cloud or to a remote server 16 via a remote connection 15, to diagnose degraded operating condition and to schedule a service request before failure of the emergency rescue device 2. This way availability of the elevator service may be improved.
  • the elevator controller 3 is configured to receive a related fault code or maintenance instruction as a response from the cloud or remote server 16, and to display said fault code or maintenance instruction received to facilitate debugging work of the service personnel.
  • the elevator controller 3 comprises a manual input 14, such as touchscreen, a button set or a keyboard, for receiving a debug command.
  • the elevator controller 3 is configured to send an energizing command to the power stage 8 responsive to receiving a debug command. This way operation of the emergency rescue device 2 may be tested.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP21175227.4A 2020-05-24 2021-05-21 Appareil de secours et ascenseur Active EP3915920B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN202031021796 2020-05-24

Publications (2)

Publication Number Publication Date
EP3915920A1 true EP3915920A1 (fr) 2021-12-01
EP3915920B1 EP3915920B1 (fr) 2023-11-22

Family

ID=76059708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21175227.4A Active EP3915920B1 (fr) 2020-05-24 2021-05-21 Appareil de secours et ascenseur

Country Status (2)

Country Link
EP (1) EP3915920B1 (fr)
CN (1) CN113716419A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023126047A1 (fr) * 2021-12-27 2023-07-06 Kone Corporation Agencement d'ascenseur et procédé de fonctionnement d'ascenseur

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107055230A (zh) * 2017-03-10 2017-08-18 黄宸 一种电梯火灾救援和日常使用节能系统及该系统使用方法
EP3290375A1 (fr) * 2016-08-29 2018-03-07 KONE Corporation Élévateur
US20190248626A1 (en) * 2018-02-13 2019-08-15 Kone Corporation Elevator
KR102034016B1 (ko) * 2018-08-16 2019-10-18 세라에스이 주식회사 승객 구출 운전장치
CN110356943A (zh) * 2019-06-24 2019-10-22 苏州汇川技术有限公司 电梯控制系统及直梯救援装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3290375A1 (fr) * 2016-08-29 2018-03-07 KONE Corporation Élévateur
CN107055230A (zh) * 2017-03-10 2017-08-18 黄宸 一种电梯火灾救援和日常使用节能系统及该系统使用方法
US20190248626A1 (en) * 2018-02-13 2019-08-15 Kone Corporation Elevator
KR102034016B1 (ko) * 2018-08-16 2019-10-18 세라에스이 주식회사 승객 구출 운전장치
CN110356943A (zh) * 2019-06-24 2019-10-22 苏州汇川技术有限公司 电梯控制系统及直梯救援装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023126047A1 (fr) * 2021-12-27 2023-07-06 Kone Corporation Agencement d'ascenseur et procédé de fonctionnement d'ascenseur

Also Published As

Publication number Publication date
EP3915920B1 (fr) 2023-11-22
CN113716419A (zh) 2021-11-30

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