CN1401553A - Elevator control device - Google Patents
Elevator control device Download PDFInfo
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- CN1401553A CN1401553A CN 01141160 CN01141160A CN1401553A CN 1401553 A CN1401553 A CN 1401553A CN 01141160 CN01141160 CN 01141160 CN 01141160 A CN01141160 A CN 01141160A CN 1401553 A CN1401553 A CN 1401553A
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- charge capacity
- temperature
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Abstract
The invention provides an elevator control device allowing a long life power storage device to be manufactured and a regenerative power generated at the time of regeneration to be recycled so as to realize an energy saving. This elevator control device comprises a power storage device 21 installed between DC bus-bars between a converter 11 and an inverter 15, storing a DC power from the DC bus-bars during the regenerative operation of an elevator, and supplying the DC power stored in the DC bus-bars during the power running, a charging and discharging control circuit 23 controlling the charging and discharging of the power storage device, a voltage detector 24 measuring the voltage of the power storage device, a temperature detector 25 detecting the temperature of the power storage device, and a stored amount estimating circuit 20 setting a test mode for flowing a specified charging and discharging current through the power storage device, detecting the voltage or temperature of the power storage device and, based on the detected voltage or temperature, estimating the stored amount from a relation between a preset voltage or a preset temperature and the stored amount. A current supply from the power storage device 21 is controlled according to the estimated stored amount.
Description
Technical field
The present invention relates to utilize the elevator control gear of electric power storing device.
Background technology
Fig. 7 is the block diagram of existing elevator control gear.
In Fig. 7, the 1st, the source of AC of civil power (calling civil power in the following text), the 2nd, electrical motors such as induction motor (IM), permanent-magnet synchronous electric motor, by driving the method for towing machine 3 rotations, the lift car 5 and the counterweight 6 that are connected in steel rope 4 two ends are moved, the passenger in the lift car 5 is transported to the floor of regulation.
Rectifier 11 is made of diode etc., and the alternating current that mains supply 1 is provided carries out rectification it is transformed to direct current (DC).Inverter 15 is made of transistor or IGBT etc., direct current (DC) is transformed to the alternating current of variable voltage variable frequency.Controller 8 determines the starting of elevators and stops, generating its position, speed command simultaneously.Inverter control circuit 13 utilizes the current feedback and the velocity feedback that is installed on the coder 7 on the towing machine 3 of current probe 12 according to the instruction of controller 8, and electrical motor 2 is rotated driving, realizes position, the speed control of elevator.At this moment, inverter control circuit 13 is controlled by output voltage, the frequency of 14 pairs of inverters 15 of gate driver circuit.
The counterweight 6 of elevator is set at the weight that can realize balance under the situation that lift car 5 has suitable number to take.For example when the state of equilibrium elevator moves, when quickening, want consumed power, otherwise can make the speed energy conversion of savings when slowing down is electric energy with raising speed.But in general elevator, being to utilize regeneration resistance control circuit 17, is that thermal energy consumption is fallen with regeneration resistance 16 with the speed energy conversion.
In so existing elevator control gear, provide electric power to make the elevator operation by civil power 1 usually.
In above-mentioned existing elevator control gear, be transformed to heat exhaustion and fall because the electric power that produces when elevator regenerated is reproduced resistance 16, therefore wish its effective utilization.Again, the afternoon electricity needs of hot summer peaks now, needs to reduce the power consumption of this time period.
Also have, the instantaneous power during the elevator operation is big, and the time that stops is long, so average consumprion power is little.But the electricity charge are to be made of the energy charge that makes that the basic charge as per installed capacity of contract power decision and power consumption determine, though therefore power consumption is few under the situation of elevator, make energy charge less by what power consumption determined, because instantaneous power is big, basic charge as per installed capacity is higher, and the result still needs many electricity charge.
The present invention makes for solving above-mentioned existing problems, its purpose is to provide the regenerated electric power that produces in the time of can utilizing elevator regenerated the operation again energy-conservation to realize, when the electricity needs peak, can adapt to simultaneously the requirement of depowering consumption, so that can make the electricity charge lower, can reduce the elevator control gear of the running power electricity charge.
Summary of the invention
Elevator control gear of the present invention has: AC rectification is transformed to galvanic rectifier; Described direct current (DC) is transformed to the inverter of the alternating current of variable voltage variable frequency; And the alternating current that utilizes described variable voltage variable frequency drives the electrical motor that makes the elevator operation, also possess: between the dc bus between described rectifier and the described inverter, be provided with, when elevator regenerated operation, store direct current (DC), when power moves, provide the galvanic electric power storing device of being stored to dc bus from dc bus; Control the charge-discharge control circuit that discharge and recharge of described electric power storing device to described dc bus; Measure the piezoelectric detector of the voltage of described electric power storing device; Detect the Temperature Detector of the temperature of described electric power storing device; And the Actuator Test Modes of setting the charging and discharging currents that passes to regulation at described electric power storing device, utilize described piezoelectric detector or described Temperature Detector to detect the voltage or the temperature of electric power storing device in this Actuator Test Modes, according to detected voltage or temperature, infer that from the relation of predefined voltage or temperature and charge capacity the charge capacity of charge capacity infers circuit, the electric current when described charge-discharge control circuit is inferred charge capacity that circuit infers to described electric power storing device power supply according to described charge capacity is controlled.
Again, described charge capacity is inferred circuit enforcement Actuator Test Modes elevator stops after or when stopping.
Again, described charge capacity infers that circuit does not have according to the detector that stops that elevator-calling detects the elevator time-out takes place at the appointed time, utilizes the described detector that stops to implement Actuator Test Modes when elevator suspends.
Again, described charge capacity infers that circuit detects the situation that elevator suspends at the described detector that stops, and the temperature of the detected described circuit storage facility of described Temperature Detector is implemented Actuator Test Modes in the range of temperatures of regulation the time.
Again, described charge capacity infers that circuit passes to the charging current of regulation as Actuator Test Modes at specific time, or passes to the discharge current of regulation at specific time, or passes to the combination current of the discharge current of the charging current of regulation and regulation with the pattern of regulation.
Again, the voltage of described electric power storing device or the detected value of temperature when described charge capacity is inferred the circuit basis with Actuator Test Modes and specific time galvanization are inferred charge capacity from the relation of predefined voltage or temperature and charge capacity.
Again, described charge capacity infers that circuit is according to the voltage that passes through described electric power storing device behind the specific time after Actuator Test Modes and the specific time galvanization again or the detected value of temperature, from the relation deduction charge capacity of predefined voltage or temperature and charge capacity.
Also have, described charge capacity infers that relation that circuit makes voltage or temperature and charge capacity changes along with the discharging and recharging number of times, period of service of battery.
Summary of drawings
Fig. 1 is the constructional drawing of the elevator control gear of the invention process form.
Fig. 2 is the instruction diagram that the charge capacity of presentation graphs 1 is inferred an example of the relation of voltage, temperature and the charge capacity of the Actuator Test Modes of regulation in the circuit 20.
Fig. 3 is the circuit diagram of the charge-discharge circuit 22 of Fig. 1.
Fig. 4 is the block scheme of detailed structure of the inverter control circuit 13 of presentation graphs 1.
Fig. 5 is the charge-discharge control circuit 23 of presentation graphs 1 and the block scheme that charge capacity is inferred the part-structure of circuit 20.
Fig. 6 is the experiment process figure that the charge capacity of Fig. 1 is inferred circuit 20.
Fig. 7 is the block scheme of existing elevator control circuit.
Concrete example
Fig. 1 is the constructional drawing of the elevator control gear of example of the present invention.
In Fig. 1, the part identical with existing example shown in Figure 7 is marked with identical symbol, and it illustrates omission.21 expressions of new symbol are arranged between dc bus between rectifier 11 and the inverter 15, when elevator regenerated operation, store direct current (DC) from dc bus, the electric power storing device of the formations such as galvanic battery of storage when moving, power is provided to dc bus, the 22nd, the charge-discharge circuit that DC/DC changer etc. constitute, the 23rd, control the charge-discharge control circuit that discharge and recharge of described charge-discharge circuit 22 with 21 pairs of dc buss of control electric power storing device, the 24th, the piezoelectric detector of the voltage of mensuration electric power storing device 21, the 25th, the Temperature Detector of the temperature of detection electric power storing device 21, the 20th, with each detection signal input of piezoelectric detector 24 and Temperature Detector 25, utilization is pre-formed form stores, the relation of voltage in the Actuator Test Modes of regulation as shown in Figure 2 or temperature and charge capacity, infer the charge capacity deduction circuit of the charge capacity of electric power storing device 21, the 50th, the power demand arithmetical circuit of calculating elevator power demand.
Fig. 3 is the block scheme of the circuit example of the described charge-discharge circuit 22 of expression.In Fig. 3, the 30th, reactor, the 26, the 27th, on-off elements such as IGBT, the 28, the 29th, antiparallel diode.Charging to circuit storage facility 21 is to utilize the voltage-dropping type chopper circuit that is made of reactor 30, on-off element 26, diode 29 to carry out, and the discharge that circuit storage facility 21 carries out is to utilize the booster type chopper circuit that is made of reactor 30, on-off element 27, diode 28 to carry out.
Following Fig. 4 is the inverter control circuit that elevator control gear had 13 of expression example 1 shown in Figure 1 and the block diagram of power demand arithmetical circuit 50.In Fig. 4,33 is 3 phases-2 phase coordinates changers, utilize this 3 phase-2 phase coordinates changer 33,3 cross streams electric current I u, Iv, Iw are transformed to and put on frequencies omega 1 value in the rotating coordinate system (d-q system of axes) of the diaxon of rotation synchronously of the alternating-current voltage/AC voltage of stator winding, promptly be transformed to stator winding electric current I d, Iq.The 38th, according to the magnetic flux arithmetic and logic unit that calculates at the stator winding electric current I d of d-q system of axes with the magnetic flux Φ 2d of rotor interlinkage, the 32nd, voltage instruction value Vd, the Vq of d-q system of axes is transformed to the 2 phases-3 phase coordinates changer of 3 cross streams voltage instruction values.The 31st, the pwm signal that generates to the pwm signal of gate driver circuit 14 according to the 3 cross streams voltage instruction values that utilize 32 conversion of 2 phases-3 phase coordinates changer makes circuit.
Again, the 34th, d shaft current controller carries out for example proportional integral (PI) computing to the d axle component instruction value Id* of stator winding electric current and the difference of its actual value Id, and the d shaft current is controlled to be command value.35 is q shaft current controller equally, and the q axle component instruction value Iq* of stator winding electric current and the difference of its actual value Iq are carried out for example proportional integral (PI) computing, and the q shaft current is controlled to be command value.The 36th, be used for the d axle component Φ 2d of armature loop interlinkage flux is controlled to be the flux guide of desirable numerical value Φ 2d*, the 37th, be used for rotor velocity ω r is controlled to be the speed controller of desirable numerical value ω r*.The 39th, divider, the 40th, the coefficient device calculates slip frequency instruction ω s by divider 39 and coefficient device 40.
Again, the 41,42,43,44,45, the 47th, adder or subtracter, the 46th, integrator, the 48, the 49th, multiplier.The 50th, the power demand arithmetic and logic unit with the product addition of sum of products voltage instruction value Vq and the stator winding electric current I q of voltage instruction value Vd in the d-q system of axes and stator winding electric current I d, calculates elevator desired power Pw.Again, power demand arithmetic and logic unit 50 also can carry out identical computing with the product addition of sum of products voltage instruction value Vq and the stator winding electric current I q* of voltage instruction value Vd in the d-q system of axes and stator winding electric current I d*.
Below, Fig. 5 is the charge-discharge control circuit that elevator control gear had 23 of expression example 1 shown in Figure 1 and the block scheme that charge capacity is inferred the part-structure of circuit 20.In Fig. 5,51,52,53,54,58,60 constitute the control circuit that charge power is used, 55,56,57,59 constitute the control circuit that discharge power is used, 51, the 55th, gate driver circuit, 52, the 56th, make the pwm signal circuit of PWM modulation signal, the 53rd, the charging current controller carries out for example proportional integral (PI) computing to the difference of charging current command value Icc and its actual value Ic, is controlled to be the charging current command value.The 54th, voltage controller carries out for example proportional integral (PI) computing to the difference of voltage instruction value Vd* and its actual value Vd, and the vdc of the mouth of charge-discharge circuit is controlled to be voltage instruction value.The 57th, the discharge current controller carries out for example proportional integral (PI) computing to the difference of discharge current command value Idc and its actual value Ic, is controlled to be the discharge current command value.58, the 59, the 60th, subtracter, the 61st, divider.
Again, the 62nd, Actuator Test Modes (test pattern) producer, the 63rd, the instruction that gives charging current controller, discharge current controller is switched to Actuator Test Modes (test mode) switch of Actuator Test Modes from operating instruction, 64, the 65th, change-over switch, the 66th, detecting elevator-calling does not have the situation of generation in the regular hour, thereby is judged as the detector that stops that elevator is in almost obsolete time out section.
Action to said structure describes below.
When elevator moves, utilize inverter control circuit shown in Figure 4 13 to control, make elevator according to predetermined speed command operation.Simultaneously, 50 pairs of elevator power demands of power demand arithmetic and logic unit Pw carries out computing, and this power demand Pw outputs to charge-discharge control circuit 23.
Charge-discharge control circuit 23 is according to power demand Pw, and when elevator is regenerated operation, when power demand is negative value, the control circuit work that charging power is used is charged elevator regenerated electric power to electric power storing device 21.The control circuit that charging power is used voltage instruction (than the high voltage of the voltage of power line voltage rectification) according to the rules, utilize 54 pairs of voltages of voltage controller to control, utilize 53 pairs of charging currents of charging current controller to control, charge capacity according to electric power storing device 21, regenerated electric power is accurately charged to electric power storing device 21, up to the charge capacity that reaches regulation.The electric power that surpasses the regulation charge capacity is by 16 discharges of regeneration resistance.
Again, elevator carry out power when operation, power demand be on the occasion of the time, the control circuit work that discharged power is used, power demand Pw and cell pressure Vb with power demand arithmetic and logic unit 50 calculates make discharge current according to following formula and instruct.
Idc＝Pw/Vb
But, if the charge capacity of electric power storing device 21 less than the charge capacity of regulation, then discharge current instruction gets 0, does not discharge.
Discharge current controller 57 is controlled discharge current according to discharge current instruction Idc and discharge current Ic.
Utilize experiment process figure shown in Figure 6 below, illustrate and utilize charge capacity to infer the method for the charge capacity of circuit 20 deduction electric power storing devices 21.
Charge capacity infers that circuit 20 is (also identical when moving after for example elevator stops or when stopping, but can make the charging and discharging currents stable after stopping or when stopping), setting passes to the Actuator Test Modes of the charging and discharging currents of regulation to electric power storing device 21, use piezoelectric detector 24 respectively, the voltage or the temperature traverse of the electric power storing device 21 of 25 pairs of these Actuator Test Modes of Temperature Detector are measured, according to described detected voltage or temperature, infer charge capacity (the step S61～S66) of electric power storing device 21 from the relation of predefined voltage shown in Figure 2 or temperature and charge capacity.
Like this, infer the charge capacity that circuit 20 is inferred according to charge capacity, electric current when utilizing 23 pairs of charge-discharge control circuits by 21 power supplies of electric power storing device is controlled, when utilizing 21 realizations of electric power storing device energy-conservation, if electric power storing device 21 performance degradations, energy-saving effect will be affected, but also may influence the realization of elevator functions, but can find the deterioration of electric power storing device 21 as early as possible, make it keep function, the regenerated electric power that produces in the time of can utilizing elevator regenerated the operation again, to realize energy-conservation purpose, can adapt to simultaneously the requirement that when the electricity needs peak, reduces power consumption, can make the electricity charge more cheap, can reduce the running power expense.
Here, as shown in Figure 6, after Actuator Test Modes and specific time galvanization,, then can get rid of the influence of the transient of electric power storing device 21 if voltage or the temperature traverse through the electric power storing device 21 behind the specific time detected (step S64, S65).
Again, if when elevator stops, also utilizing according to not having elevator-calling to detect the detector 66 that stops that elevator just temporarily stops at specific time, detect the time out section of elevator, the enforcement Actuator Test Modes (step S61～S63), elevator-calling can not take place then when test, Actuator Test Modes is interrupted, or implement the situation of Actuator Test Modes with unsettled data, the precision that charge capacity is inferred improves.
Also have, if implement Actuator Test Modes (step S62～S63), the precision raising that charge capacity is inferred in the temperature of Temperature Detector 25 detected electric power storing devices 21 is in the stable set point of temperature scope of the relation of charge capacity and temperature the time.
Actuator Test Modes is undertaken by following manner, promptly pass to the charging current of regulation at specific time, or pass to the discharge current of regulation, or pass to the combination current of the discharge current of the charging current of regulation and regulation with the pattern (pattern) of regulation at specific time.
Again, if the relation of the voltage of predefined formization or temperature and charge capacity is changed, reflect electric power storing device 21 with discharging and recharging number of times and period of service the situation of deterioration year by year, just can adapt to the timeliness variation.
As mentioned above, adopt the present invention, set Actuator Test Modes (mode), utilize the smart charge capacity of but inferring the electric power storing device of Actuator Test Modes (pattern), electric current during according to the power supply of charge capacity control electric power storing device, can prolong the life-span of electric power storing device with this, can constitute more cheap system, can also utilize the regenerated electric power that produces when elevator regenerated again, realize energy-conservation purpose, cut down the requirement of electric power consumption in the time of simultaneously can adapting to the electricity needs peak, make the electricity charge more cheap, reduce the running power expense.
Claims (8)
1. elevator control gear has AC rectification is transformed to galvanic rectifier; Described direct current (DC) is transformed to the inverter of the alternating current of variable voltage variable frequency; And the alternating current that utilizes described variable voltage variable frequency drives the electrical motor that makes elevator operation, it is characterized in that possessing
Between the dc bus between described changer and the described inverter, be provided with, when elevator regenerated operation, store direct current (DC), when power moves, provide the galvanic electric power storing device of being stored to dc bus from dc bus;
Control the charge-discharge control circuit that discharge and recharge of described electric power storing device to described dc bus;
Measure the piezoelectric detector of the voltage of described electric power storing device;
Detect the Temperature Detector of the temperature of described electric power storing device; And
Set the Actuator Test Modes of the charging and discharging currents that passes to regulation at described electric power storing device, utilize described piezoelectric detector or described Temperature Detector to detect the voltage or the temperature of electric power storing device in this Actuator Test Modes, according to detected voltage or temperature, infer the charge capacity deduction circuit of charge capacity from the relation of predefined voltage or temperature and charge capacity
Electric current when described charge-discharge control circuit infers that according to described charge capacity the charge capacity of circuit deduction supplies power to described electric power storing device is controlled.
2. elevator control gear according to claim 1 is characterized in that,
Described charge capacity is inferred circuit enforcement Actuator Test Modes elevator stops after or when stopping.
3. elevator control gear according to claim 1 is characterized in that,
Described charge capacity infers that circuit does not have according to the detector that stops that elevator-calling detects the elevator time-out takes place at the appointed time, utilizes the described detector that stops to implement Actuator Test Modes when elevator suspends.
4. elevator control gear according to claim 3, it is characterized in that, described charge capacity infers that circuit detects the situation that elevator suspends at the described detector that stops, and the temperature of the detected described circuit storage facility of described Temperature Detector is implemented Actuator Test Modes in the range of temperatures of regulation the time.
5. elevator control gear according to claim 1 is characterized in that,
Described charge capacity infers that circuit passes to the charging current of regulation as Actuator Test Modes at specific time, or passes to the discharge current of regulation at specific time, or passes to the combination current of the discharge current of the charging current of regulation and regulation with the pattern of regulation.
6. elevator control gear according to claim 1 is characterized in that,
The voltage of described electric power storing device or the detected value of temperature when described charge capacity is inferred the circuit basis with Actuator Test Modes and specific time galvanization are inferred charge capacity from the relation of predefined voltage or temperature and charge capacity.
7. elevator control gear according to claim 1 is characterized in that,
Described charge capacity infers that circuit is according to the voltage that passes through described electric power storing device behind the specific time after Actuator Test Modes and the specific time galvanization again or the detected value of temperature, from the relation deduction charge capacity of predefined voltage or temperature and charge capacity.
8. according to each the described elevator control gear in the claim 1～7, it is characterized in that,
Described charge capacity infers that relation that circuit makes voltage or temperature and charge capacity changes along with the discharging and recharging number of times, period of service of battery.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001236244A JP2003048672A (en) | 2001-08-03 | 2001-08-03 | Elevator control device |
| JP236244/2001 | 2001-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401553A true CN1401553A (en) | 2003-03-12 |
| CN1185156C CN1185156C (en) | 2005-01-19 |
Family
ID=19067553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011411600A Expired - Fee Related CN1185156C (en) | 2001-08-03 | 2001-09-29 | Elevator control device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003048672A (en) |
| CN (1) | CN1185156C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020155A (en) * | 2009-09-18 | 2011-04-20 | 东芝电梯株式会社 | Elevator control device |
| CN101531301B (en) * | 2008-03-13 | 2011-12-14 | 东芝电梯株式会社 | Group management control device for elevator system |
| CN101746656B (en) * | 2008-12-16 | 2014-06-11 | 中国建筑科学研究院建筑机械化研究分院 | Elevator regenerated electricity utilizing system |
| CN104380560A (en) * | 2012-07-11 | 2015-02-25 | 三菱电机株式会社 | Elevator device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004289986A (en) * | 2003-03-25 | 2004-10-14 | Toshiba Corp | Power converter |
| JP2005117804A (en) * | 2003-10-08 | 2005-04-28 | Toshiba Corp | Power conversion apparatus |
| JP4804020B2 (en) * | 2005-03-24 | 2011-10-26 | 東芝エレベータ株式会社 | Electric storage control device for elevator |
| JP2006321607A (en) * | 2005-05-18 | 2006-11-30 | Hitachi Building Systems Co Ltd | Elevator call registration device |
| CN102372205B (en) * | 2010-08-26 | 2014-05-28 | 上海三菱电梯有限公司 | Elevator energy-saving device based on cooperative control mode |
| CN102452588B (en) * | 2010-10-21 | 2014-01-01 | 上海三菱电梯有限公司 | Energy-saving device for elevator |
| EP3317214B1 (en) * | 2015-07-01 | 2020-02-19 | Otis Elevator Company | Lithium-ion battery charging system for a battery powered elevator system |
| CN113224808A (en) * | 2021-04-14 | 2021-08-06 | 钟亮 | Novel elevator energy-saving device based on super capacitor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0850159A (en) * | 1994-08-05 | 1996-02-20 | Hitachi Building Syst Eng & Service Co Ltd | Surface layer short-circuit diagnostic device for electric motor |
| JPH1017235A (en) * | 1996-07-04 | 1998-01-20 | Hitachi Building Syst Co Ltd | Residual capacity judging device for battery of elevator |
| JP3376832B2 (en) * | 1996-09-30 | 2003-02-10 | 日産自動車株式会社 | Battery charge / discharge power calculation method |
| JP3594283B2 (en) * | 1998-01-09 | 2004-11-24 | 東芝エレベータ株式会社 | Elevator blackout rescue operation device |
| JPH11299275A (en) * | 1998-04-14 | 1999-10-29 | Osaka Gas Co Ltd | Power unit for elevator |
-
2001
- 2001-08-03 JP JP2001236244A patent/JP2003048672A/en active Pending
- 2001-09-29 CN CNB011411600A patent/CN1185156C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531301B (en) * | 2008-03-13 | 2011-12-14 | 东芝电梯株式会社 | Group management control device for elevator system |
| CN101746656B (en) * | 2008-12-16 | 2014-06-11 | 中国建筑科学研究院建筑机械化研究分院 | Elevator regenerated electricity utilizing system |
| CN102020155A (en) * | 2009-09-18 | 2011-04-20 | 东芝电梯株式会社 | Elevator control device |
| CN104380560A (en) * | 2012-07-11 | 2015-02-25 | 三菱电机株式会社 | Elevator device |
| CN104380560B (en) * | 2012-07-11 | 2016-12-21 | 三菱电机株式会社 | Lift appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1185156C (en) | 2005-01-19 |
| JP2003048672A (en) | 2003-02-21 |
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Granted publication date: 20050119 Termination date: 20200929 |