CN108750838A - A kind of elevator control system - Google Patents

A kind of elevator control system Download PDF

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Publication number
CN108750838A
CN108750838A CN201810972805.0A CN201810972805A CN108750838A CN 108750838 A CN108750838 A CN 108750838A CN 201810972805 A CN201810972805 A CN 201810972805A CN 108750838 A CN108750838 A CN 108750838A
Authority
CN
China
Prior art keywords
switch board
frequency converter
control system
module
elevator control
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.)
Pending
Application number
CN201810972805.0A
Other languages
Chinese (zh)
Inventor
郑世云
何旭均
唐川东
李彬
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.)
Chongqing Macro Lift Co Ltd
Original Assignee
Chongqing Macro Lift Co Ltd
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 Chongqing Macro Lift Co Ltd filed Critical Chongqing Macro Lift Co Ltd
Priority to CN201810972805.0A priority Critical patent/CN108750838A/en
Publication of CN108750838A publication Critical patent/CN108750838A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/02Control systems without regulation, i.e. without retroactive action
    • B66B1/06Control systems without regulation, i.e. without retroactive action electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04Driving gear ; Details thereof, e.g. seals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006Monitoring devices or performance analysers
    • B66B5/0018Devices monitoring the operating condition of the elevator system

Abstract

The present invention, which provides one kind, can improve lift circuit system stability, the timely and effective regenerative electric energy consumed in circuit, ensure each electric component safety in circuit, the cabinet internal electrical components that tighten control protect while reducing the elevator control system of in-site installation demand, including control cabinet and frequency converter, frequency converter is set to inside switch board, frequency converter connects control traction machine by power power-line, the frequency converter DC circuit connects active heat radiating device, elevator control system is not provided with braking resistor, and switch board wall is not provided with passive heat emission hole.The invention has the advantages that electric energy of the present invention by generating traction machine work avoids the waste of energy, improves the efficiency of cooling system work, reduce switch board size and switch board is made to be easily installed for the heat dissipation of itself of traction machine control system.

Description

A kind of elevator control system
Technical field
The present invention relates to a kind of electrical control systems, and in particular to a kind of elevator control system.
Background technology
Elevator currently on the market is distinguished according to traction machine working condition, and elevator operation generally can be divided into four operating modes:
1. the lighter rising on one side of empty wagons uplink or fully loaded downlink, i.e. car or counterweight, the potential energy of system release at this time, traction machine work Make in generating state;
2. empty wagons downlink is fully loaded with up and down, i.e. the heavier decline on one side of car or counterweight, potential energy of system increases at this time, traction machine work Make in motoring condition;
3. where lift car reaches when floor retarding braking, system discharges potential energy, and traction machine is also operated in power generation shape at this time State;
4. when elevator is run in semi-load or close under half cargo condition, traction machine is operated in balance or close to balance condition at this time, Traction machine is operated in motoring condition at this time.
As described above:When the potential energy that elevator traction machine is driven loads decentralization, traction machine is in generating state, power train Stored mechanical energy is converted into electric energy through traction machine in system, and frequency converter is transmitted back to by six fly-wheel diodes of inverter In DC loop.Inverter at this time is in rectification state.At this moment, if not taking the measure of consumption energy in frequency converter, this Portion of energy will cause the voltage of the energy-storage capacitor of intermediate loop to rise, and damage may be brought to frequency converter.And existing market On what thermal energy had wasted is reconverted into generally by dynamic braking resistance to the processing of this portion of energy.
The energy that the power generation of elevator device traction machine generates, is converted to thermal energy consumption, although can guarantee back by elevator brake Road is stablized, and plays the role of effective protection to frequency converter, but computer room temperature can be caused to increase when braking resistor consumption electric energy, computer room Interior switch board due to temperature is higher and there are circuit safety hidden danger, in addition itself can also be sent out when frequency converter work inside switch board Heat, the radiating mode generally used are real by the temperature difference of the inside and outside air of switch board to open many ventilation holes on switch board cabinet Existing cross-ventilation, that is, heat exchange is radiated, when the heat that braking resistor generates causes computer room temperature to increase, switch board cabinet Inside and outside Air Temperature Difference is smaller, when frequency converter heat dissipation effect is poor or even switch board cabinet outside air temperature higher, frequency converter Cannot radiate or radiate for a long time deficiency, lead to frequency converter service life degradation.In addition it is opened up on switch board cabinet Ventilation hole will cause dust, sundries easily to enter inside switch board, may influence switch board interior section electric component just Often work induces the dangerous situations such as short circuit, on fire when serious.Obviously one kind not influencing computer room temperature raising, does not increase existing Field installation requirements, can effectively consume the electric energy generated under traction machine generating state and good heat dissipation effect, protective is strong, safely may be used The research and development of the elevator control cabinet leaned on are extremely urgent.
The prior art also has the technical solution for using and the electric energy that frequency converter generates being fed back to power grid, but can be made to power grid At harmonic pollution.
Switch board in the prior art is unfavorable for site environment installation as shown in Fig. 2, appearance and size is larger, and side wall is provided with More ventilation opening is easy to cause dust, sundries entrance, influences switch board internal electrical components use environment, influence switch board Interior electric component service life, when serious, conductive sundries enters switch board, will lead to the short circuit of switch board internal electrical components, rises The security risks such as fire.
In the prior art, elevator device circuit is as shown in Figure 1:External electrical network electric energy R1, S1, T1 is connect by frequency converter input Tentaculum is correspondingly connected with frequency converter R, S, T, and U, V, W are electronic by frequency converter output contactor and traction after frequency converter regulates and controls electric energy Machine U1, V1, W1 connection, controls traction machine;Frequency converter P (+), N (-) are connect with brake unit, brake unit parallel connection braking resistor R。
When potential energy of system increases, consumption electric energy, traction machine is in electronic working condition, and brake unit does not work;When being System decrease of potential energy or system slowdown braking, system discharge potential energy, and traction machine is in generating state, and traction machine produces electricl energy, and returns Direct-current loop of frequency converter is flowed to, being converted into thermal energy consumption by braking resistor R falls, and ensures circuit stability.Braking resistor is by energy The temperature of switch board can be increased by being converted into thermal energy, influence traction machine heat dissipation, and energy is wasted.
Prior art China patent CN105584921A is disclosed a kind of " a kind of energy saving system of elevator ", what which used Technical solution is that " a kind of energy saving system of elevator includes the braking resistor being connect with the DC bus of frequency converter, is dissipated by consuming energy The mode of heat stablizes the DC bus-bar voltage of frequency converter, and the braking resistor is set in incubator;Incubator, for electricity will to be braked The heat that resistance energy consumption gives out is collected in incubator;Thermo-electric generation unit in the incubator, being used for will be in incubator Converting heat at electric energy;The DC/DC voltage regulation units being connect with thermo-electric generation unit, the control being connect with DC/DC voltage regulation units Device, the load being connect with controller and accumulator.The energy saving system of elevator of the present invention can fully recycling traction machine return Feed energy." program realizes that energy regenerating, frequency converter pass through in such a way that the converting heat that generates braking resistor is electric energy It converts extra electric energy to thermal energy by braking resistor, stored by incubator, incubator is stored into heat again when needing It can be converted into electric energy use, energy is converted by more to program in this way, and conversion every time can all generate energy loss, imitate Rate is very low, and incubator storage energy is limited, needs to execute heat dissipation action more than threshold values and causes energy loss, at the same incubator and Temperature difference electricity generation device is with high costs, and energy loss also can constantly occur for the process of incubator storage thermal energy, using this technical side Case inefficiency with high costs.
Invention content
To solve the above-mentioned problems, the present invention, which provides one kind, can improve lift circuit system stability, timely and effective to disappear The regenerative electric energy in circuit is consumed, ensures that each electric component safety, the cabinet internal electrical components that tighten control protect simultaneously in circuit The elevator control system of in-site installation demand is reduced, including control cabinet and frequency converter, frequency converter are set to inside switch board, are become Frequency device connects control traction machine by power power-line, which is characterized in that the frequency converter DC circuit connection active heat removal dress It sets.
Further, the active heat radiating device is electric fan.
Further, the electric fan is embedded in switch board wall.
Further, the active heat radiating device is liquid-cooling heat radiator;
The liquid-cooling heat radiator includes liquid cooling block, circulation fluid, water pump, pipeline and heat exchanger;
The liquid cooling block is set to frequency converter surface;
The heat exchanger is set to outside switch board;
Pipeline connects liquid cooling block and heat exchanger;
Water pump driving circulation fluid circulates in pipeline.
Further, further include control module, battery module, temperature sensor;
Control module respectively with battery module, temperature sensor connection;
Control module is microcontroller or PLC;
Battery module includes battery control circuit and battery.
Further, control module obtains switch board internal temperature information by temperature sensor, and according in switch board Portion's temperature information control radiating module operation.
Further, further include communication module;
Communication module is connect with control module, Cloud Server respectively;
Temperature information and active heat radiating device operation data are sent to Cloud Server by control module by communication module.
Further, further include warning device;
The warning device is connect with control module;
Control module monitors to send out alarm by warning device when active heat radiating device failure;
The warning device is flash alarm or buzzer siren.
Further, further include intelligent movable equipment, intelligent movable equipment is connect with communication module, and control module passes through logical Temperature information and active heat radiating device operation data are sent to intelligent movable equipment by letter module.
Further, the frequency converter is connect by inputting contactor with external electrical network, passes through output contactor and traction Motor connects.
The beneficial effects of the invention are as follows:
1 cancels resistance box, and installation is simply, conveniently, lower to present installation requirements;
2 cancel tradition ventilation hole, electric component, circuit cable protection inside the cabinet that tightens control;
3 increase radiators improve radiating efficiency;
4 radiator main function positions are frequency converter, and heating position heat dissipation effect is apparent;
5 radiators are made of aluminium alloy, and heat dissipation effect is good;
The electric energy generated under 6 radiators consumption traction machine generating state, ensures that circuit system is stablized;
7 radiators do not consume electric energy in power grid, lower energy expenditure, reduce cost;
8 by being arranged warning device, sends out the safety that alarm improves system in time when the system failure.
9 improve the remote monitoring that elevator is run by the way that Cloud Server realization is arranged the safety of system.
Description of the drawings
Fig. 1 is prior art elevator control system circuit diagram.
Fig. 2 is prior art switch board structural schematic diagram.
Fig. 3 is one embodiment of the invention elevator device circuit diagram.
Fig. 4 is one embodiment of the invention elevator driving structure schematic diagram.
Fig. 5 is one embodiment of the invention switch board structural schematic diagram.
Fig. 6 is one embodiment of the invention module connection relationship diagram.
In figure, 1 is compensation chain, and 2 be counterweight, and 3 be hoist ropes, and 4 be directive wheel, and 5 be traction machine, and 6 be power power-line, 7 It is switch board, 8 input power cords, 9 be trailing cable, and 10 be trailing cable fixed bin, and 11 be car, and 12 be switch board, and 13 are Resistance box, 14 be heat emission fan, and 15 is have a ventilation opening side wall, 16 for no ventilation opening side wall.
Specific implementation mode
As shown in Fig. 4 elevator driving structure schematic diagrames:Power grid electric energy passes through 8 input control cabinet 7 of input power cord, switch board Control by power power-line 6 connection control traction machine 5, traction machine by between hoist ropes 3 frictional force dragging counterweight 2, About 11 car is run.When traction machine 3 is in motoring condition, consumption electric energy is provided by power power-line 6, when traction machine 3 When in generating state, the electric energy of generation is back to switch board 7 by power power-line 6.
As shown in Figure 3:External electrical network electric energy R1, S1, T1 inputs contactor and frequency converter R, S, T couple by TDC frequency converters It should connect, U, V, W are connect by TDD frequency converters output contactor with hoisting motor U1, V1, W1 after frequency converter regulation and control electric energy, Control traction machine;Frequency converter P (+), N (-) are connect with brake unit, brake unit parallel connection braking resistor R.
When potential energy of system increases, consumption electric energy, traction machine is in electronic working condition, and brake unit does not work;When being System decrease of potential energy or system slowdown braking, system discharge potential energy, and traction machine is in generating state, and traction machine produces electricl energy, and returns The reflux of frequency converter direct current is flowed to, kinetic energy is converted by heat emission fan, wind energy consumes, ensures circuit stability, and carry to frequency converter For fanning Thermal protection.
As shown in figure 5, radiating fan structure switch board of the present invention, heat emission fan is embedded in inside switch board, is not increased outside switch board Shape size is conducive to in-site installation, while cancelling side vents, and foreign hardly enters switch board, ensure fully, have In the case of effect heat dissipation, the protection to switch board internal electrical components is further increased.Switch board cancels ventilation hole but simultaneously non-fully Closing, there are gaps for switch board installation, and air can enter switch board by gap when heat emission fan works.It is arranged relative to tradition The mode of ventilation hole is not in air circulation when heat emission fan does not work, and dust is not easily accessible inside switch board.
The present invention provides a kind of elevator control system as shown in Figure 6, including control cabinet and frequency converter, frequency converter are set to Inside switch board, frequency converter connects control traction machine by power power-line, and the frequency converter DC circuit connects active heat removal Device, elevator control system are not provided with braking resistor, and switch board wall is not provided with passive heat emission hole.
Frequency converter DC circuit is frequency changer direct current bus.
Further, the active heat radiating device is electric fan.
Further, the electric fan is embedded in switch board wall.
By the way that electric fan is arranged and electric fan is embedded in switch board wall, the energy generated when traction machine is worked is used for electric wind Work is fanned, traction machine will produce heat when working, radiate, and the ability generated when traction machine working at this time is for electricity The energy that fan work cleverly generates traction machine works for cooling system, has saved energy consumption and has avoided in the prior art The electric energy that traction machine is sent out is consumed by braking resistor, increases switch board temperature and the defect of energy dissipation.Electric fan is not Air effectively avoids dust debris and enters switch board, improve control system not with external circulation in switch board when work Service life.
Further, the active heat radiating device is liquid-cooling heat radiator;
The liquid-cooling heat radiator includes liquid cooling block, circulation fluid, water pump, pipeline and heat exchanger;
The liquid cooling block is set to frequency converter surface;
The heat exchanger is set to outside switch board;
Pipeline connects liquid cooling block and heat exchanger;
Water pump driving circulation fluid circulates in pipeline.
By the way that liquid-cooling heat radiator is arranged, the energy generated when traction machine is worked works for liquid-cooling heat radiator, drags Heat is will produce when drawing machine work, is radiated, the ability generated when traction machine working at this time is filled for liquid-cooling heat radiation It sets the energy that work cleverly generates traction machine to work for cooling system, has saved energy consumption and avoided and in the prior art will The electric energy that traction machine is sent out is consumed by braking resistor, increases switch board temperature and the defect of energy dissipation.Switch board uses Switch board can be completely closed by liquid-cooling heat radiator, avoid air from circulating with the external world, it is entirely avoided dust and sundries Into inside switch board, service life and the safety of control system are improved.
By the setting of liquid cooling block and frequency converter surface, directly radiates to sites of heat generation, improve the working efficiency of system.
Further, further include control module, battery module, temperature sensor;
Control module respectively with battery module, temperature sensor connection;
Control module is microcontroller or PLC;
Battery module includes battery control circuit and battery.
Further, control module obtains switch board internal temperature information by temperature sensor, and according in switch board Portion's temperature information control radiating module operation.
Control module can will be draged according to the control active heat radiating device work of switch board internal temperature information when temperature is not high The electric energy for drawing machine output stores in the battery, when the temperature is excessively high, even if do not work can if not exporting electric energy for traction machine It drives active heat radiating device work to reduce switch board internal temperature to use the electric energy stored in battery, mould is controlled by setting Block and battery module increase the flexibility of cooling system, extend application scenarios.Control module can be microcontroller or PLC, Battery control circuit is that known technology no longer illustrates herein.
Further, further include communication module;
Communication module is connect with control module, Cloud Server respectively;
Temperature information and active heat radiating device operation data are sent to Cloud Server by control module by communication module.
Communication module can be mobile communications network module, can also be wifi communication modules or bluetooth communication.Electricity The operation of terraced system is related to human life's safety, by the way that temperature information and active heat radiating device operation data are sent to cloud service Device, remote server can monitor the operation conditions of cooling system, exception occur and send someone to handle in time, greatly improve system Safety.
Further, further include warning device;
The warning device is connect with control module;
Control module monitors to send out alarm by warning device when active heat radiating device failure;
The warning device is flash alarm or buzzer siren.
The operation of elevator device is related to human life's safety and it is timely abnormal work personnel occurs by the way that alarm module is arranged Processing, greatly improves the safety of system.
Further, further include intelligent movable equipment, intelligent movable equipment is connect with communication module, and control module passes through logical Temperature information and active heat radiating device operation data are sent to intelligent movable equipment by letter module.
Further, the frequency converter is connect by inputting contactor with external electrical network, passes through output contactor and traction Motor connects.
The invention has the advantages that the present invention is used for traction machine control system by the electric energy for generating traction machine work The heat dissipation of itself avoids the waste of energy, improves the efficiency of cooling system work, reduces switch board size and to control Cabinet is easily installed.

Claims (10)

1. a kind of elevator control system, including control cabinet and frequency converter, frequency converter are set to inside switch board, frequency converter passes through Power power-line connection control traction machine, which is characterized in that the frequency converter DC circuit connects active heat radiating device.
2. a kind of elevator control system as described in claim 1, which is characterized in that the active heat radiating device is electric fan.
3. a kind of elevator control system as claimed in claim 2, which is characterized in that the electric fan is embedded in switch board wall.
4. a kind of elevator control system as described in claim 1, which is characterized in that the active heat radiating device is liquid-cooling heat radiation Device;
The liquid-cooling heat radiator includes liquid cooling block, circulation fluid, water pump, pipeline and heat exchanger;
The liquid cooling block is set to frequency converter surface;
The heat exchanger is set to outside switch board;
Pipeline connects liquid cooling block and heat exchanger;
Water pump driving circulation fluid circulates in pipeline.
5. a kind of elevator control system as described in claim 1, which is characterized in that further include control module, battery module, temperature Spend sensor;
Control module respectively with battery module, temperature sensor connection;
Control module is microcontroller or PLC;
Battery module includes battery control circuit and battery.
6. a kind of elevator control system as claimed in claim 5, which is characterized in that control module is obtained by temperature sensor Switch board internal temperature information, and according to the control radiating module operation of switch board internal temperature information.
7. a kind of elevator control system as claimed in claim 6, which is characterized in that further include communication module;
Communication module is connect with control module, Cloud Server respectively;
Temperature information and active heat radiating device operation data are sent to Cloud Server by control module by communication module.
8. a kind of elevator control system as claimed in claim 6, which is characterized in that further include warning device;
The warning device is connect with control module;
Control module monitors to send out alarm by warning device when active heat radiating device failure;
The warning device is flash alarm or buzzer siren.
9. a kind of elevator control system as claimed in claim 7, which is characterized in that further include intelligent movable equipment, mobile intelligence Energy equipment is connect with communication module, and control module is sent temperature information and active heat radiating device operation data by communication module To intelligent movable equipment.
10. a kind of elevator control system as described in claim 1, which is characterized in that the frequency converter is by inputting contactor It connect with external electrical network, is connect with hoisting motor by output contactor.
CN201810972805.0A 2018-08-24 2018-08-24 A kind of elevator control system Pending CN108750838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810972805.0A CN108750838A (en) 2018-08-24 2018-08-24 A kind of elevator control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810972805.0A CN108750838A (en) 2018-08-24 2018-08-24 A kind of elevator control system

Publications (1)

Publication Number Publication Date
CN108750838A true CN108750838A (en) 2018-11-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810972805.0A Pending CN108750838A (en) 2018-08-24 2018-08-24 A kind of elevator control system

Country Status (1)

Country Link
CN (1) CN108750838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110456844A (en) * 2019-07-18 2019-11-15 日立电梯(中国)有限公司 The anti-condensation equipment of elevator control cabinet, method, apparatus and elevator

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Publication number Priority date Publication date Assignee Title
CN201240741Y (en) * 2008-07-11 2009-05-20 林肯电梯(中国)有限公司 Energy-saving inverter for elevator
CN101752998A (en) * 2010-02-11 2010-06-23 杭州优迈科技有限公司 Frequency converter for heat pipe heat radiation type elevator and an elevator control cabinet adopting same
CN201598075U (en) * 2010-02-11 2010-10-06 杭州优迈科技有限公司 Elevator control cabinet
CN203033574U (en) * 2012-12-14 2013-07-03 西子奥的斯电梯有限公司 Elevator control cabinet water-cooling cooling device
CN103754119A (en) * 2014-01-15 2014-04-30 南车株洲电力机车研究所有限公司 AC-DC electric locomotive braking device
CN203691296U (en) * 2014-01-23 2014-07-02 武汉迈信电气技术有限公司 Auxiliary apparatus for energy-consumption braking of servo driver
CN105584921A (en) * 2016-02-29 2016-05-18 广州广日电梯工业有限公司 Energy conversation system for elevators
CN208994890U (en) * 2018-08-24 2019-06-18 重庆迈高电梯有限公司 A kind of elevator control system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201240741Y (en) * 2008-07-11 2009-05-20 林肯电梯(中国)有限公司 Energy-saving inverter for elevator
CN101752998A (en) * 2010-02-11 2010-06-23 杭州优迈科技有限公司 Frequency converter for heat pipe heat radiation type elevator and an elevator control cabinet adopting same
CN201598075U (en) * 2010-02-11 2010-10-06 杭州优迈科技有限公司 Elevator control cabinet
CN203033574U (en) * 2012-12-14 2013-07-03 西子奥的斯电梯有限公司 Elevator control cabinet water-cooling cooling device
CN103754119A (en) * 2014-01-15 2014-04-30 南车株洲电力机车研究所有限公司 AC-DC electric locomotive braking device
CN203691296U (en) * 2014-01-23 2014-07-02 武汉迈信电气技术有限公司 Auxiliary apparatus for energy-consumption braking of servo driver
CN105584921A (en) * 2016-02-29 2016-05-18 广州广日电梯工业有限公司 Energy conversation system for elevators
CN208994890U (en) * 2018-08-24 2019-06-18 重庆迈高电梯有限公司 A kind of elevator control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110456844A (en) * 2019-07-18 2019-11-15 日立电梯(中国)有限公司 The anti-condensation equipment of elevator control cabinet, method, apparatus and elevator
CN110456844B (en) * 2019-07-18 2021-06-08 日立电梯(中国)有限公司 Anti-condensation equipment, method and device for elevator control cabinet and elevator

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