CN108750838A - A kind of elevator control system - Google Patents
A kind of elevator control system Download PDFInfo
- 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
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- 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
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- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 8
- 230000001172 regenerating effect Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000005381 potential energy Methods 0.000 description 10
- 238000009423 ventilation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
-
- 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
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices 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
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.
Priority Applications (1)
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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 |
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CN201810972805.0A CN108750838A (en) | 2018-08-24 | 2018-08-24 | A kind of elevator control system |
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Publication Number | Publication Date |
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CN108750838A true CN108750838A (en) | 2018-11-06 |
Family
ID=63966556
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CN201810972805.0A Pending CN108750838A (en) | 2018-08-24 | 2018-08-24 | A kind of elevator control system |
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Cited By (1)
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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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 |
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2018
- 2018-08-24 CN CN201810972805.0A patent/CN108750838A/en active Pending
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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 |
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Cited By (2)
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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