CN102040133A - Elevator power supply device - Google Patents
Elevator power supply device Download PDFInfo
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- CN102040133A CN102040133A CN2010106152917A CN201010615291A CN102040133A CN 102040133 A CN102040133 A CN 102040133A CN 2010106152917 A CN2010106152917 A CN 2010106152917A CN 201010615291 A CN201010615291 A CN 201010615291A CN 102040133 A CN102040133 A CN 102040133A
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Abstract
The invention relates to an elevator power supply device which comprises a charger, a battery, a detecting unit, a three-phase pure sine wave inverter power unit, a first switch, a second switch, a switch control unit and a three-phase transformer, wherein the battery is connected with the charger, the detecting unit is connected to mains supply, and the three-phase pure sine wave inverter power unit is connected to the battery and the detecting unit and is used to start emergency operation to output three-phase pure sine wave PWM signals when the mains supply is disconnected; the first switch is connected between the mains supply and the elevator; the second switch is connected between the elevator and the three-phase transformer; the switch control unit is connected to the detecting unit, the first switch and the second switch and has a control part to control the first switch and the second switch; and the three-phase pure sine wave inverter power unit is connected between the three-phase transformer and the second switch. The elevator power supply device can ensure that an elevator can operate normally for certain time after the mains supply is disconnected without changing the elevator control system. With the advantage of simplicity, the elevator power supply device can improve the overall safety factor of the elevator.
Description
Technical field
The present invention relates to a kind of electric supply installation, particularly a kind of power supply for elevator with emergency function.
Background technology
In lift facility, when the situation of mains-supplied interruption occurring suddenly, can come the operation of lift car is controlled by manually or automatically starting emergency facility.
Elevator emergency device generally includes control unit, storage battery, charhing unit, single-phase or three-phase inversion unit, driver element, relay, static switch, guidance panel etc., and wherein control unit is connected to storage battery, band-type brake coil and elevator door-motor etc.After power failure, control unit control band-type brake coil in the elevator emergency device and elevator door-motor come lift car is carried out flat bed and opens the door.
Fig. 1 is the constructional drawing of existing elevator emergency device.As shown in Figure 1, this elevator emergency device comprises power module 2, control loop 4, door machine 47, loop of the door lock 6, safety return circuit 7 and is connected to the band-type brake coil 3 etc. of elevator traction machine 8.When civil power 1 supply regular power, by 1 pair of elevator supply of civil power, civil power 1 charges by 21 pairs of storage batterys 22 of charger simultaneously.When civil power 1 interrupted suddenly, the automatic testing circuit 41 of power supply detected power failure, then sent power cut signal and gave impulse deviser 42.Voltage changer 23 is exported the voltage of storage battery 22 through after the conversion, impulse deviser 42 is by driving 44 pairs of band-type brake coils of first switch, 3 output PWM ripples to open band-type brake, the dutycycle that changes the PWM ripple according to the induced signal that receives flat bed inductor 90 or 91 is to control the dynamics that band-type brake compresses, stop to open band-type brake when the accurate flat bed of elevator, the controller 48 that at this moment opens the door is connected dynamo-electric pressure of door by second switch 45 controls and is given 47 power supplies of door machine to open elevator door.
The elevator emergency device of the prior art of employing said structure can be taken over the control system of elevator itself fully and come the flat bed of lift car is controlled with opening the door when having a power failure, the inventor finds that this structure has the shortcoming of the following aspects at least:
1, because this elevator emergency device must possess necessary parts such as control loop, flat bed inductor, band-type brake coil, when civil power interrupts, to take over apparatus for controlling elevator the operation of car is controlled, so its circuit structure is comparatively complicated usually, productive costs is higher.And because the elevator manufacturer need order elevator emergency device mostly to special elevator emergency device manufacturer, under the not high situation of the profit on sales of elevator itself, the expensive of elevator emergency device will be caused burden to manufacturing industry of the lift.
2, because this elevator emergency device need be taken over elevator itself fully when civil power interrupts control system, therefore the internal circuit configuration of the control system of elevator itself need be made some corresponding changes, to cooperate the control operation of elevator emergency device, this has not only increased the complexity of elevator manufacturing, has further improved manufacturing cost, and apparatus for controlling elevator taken over the safety that can reduce elevator itself fully.
3, owing to when civil power interrupts, take over apparatus for controlling elevator fully by elevator emergency device, therefore when the city power recovery powers, apparatus for controlling elevator recovers the control to elevator usually immediately, needs the technician to restart apparatus for controlling elevator to recover the normal operation of elevator.
Summary of the invention
For solving above-mentioned shortcoming of the prior art, the present invention proposes a kind of power supply for elevator, makes in its a period of time that can have no progeny in civil power that elevator still can normally operation under the control of control system of itself.
For this reason, the present invention proposes a kind of power supply for elevator, and it is connected to civil power and elevator, described power supply for elevator except comprise with civil power bonded assembly charger and with charger bonded assembly storage battery, also comprise:
Detecting unit, it is connected to civil power and detects whether supply regular power of civil power;
Three-phase pure wave inverter unit, it is connected to storage battery and detecting unit, and starts emergency operating with output three-phase pure wave pwm signal when described detecting unit detects the civil power interruption of power supply under the power supply of storage battery;
First switch, it is connected between civil power and the elevator;
Second switch, it is connected between elevator and the three phase transformer;
Switch control unit, it is connected to described detecting unit, first switch and second switch, described switch control unit has control part, it controls closed first switch when described detecting unit detects the civil power supply regular power, and when described three-phase pure wave inverter unit starting emergency operating the control closed second switch; And
Three phase transformer, it is connected to three-phase pure wave inverter unit and second switch, described three phase transformer is used for the three-phase pure wave pwm signal of three-phase pure wave inverter unit output is converted to three-phase pure wave voltage, and provides standby power by second switch for elevator.
As preferably, described detecting unit has the control signal producer, it produces first control signal, described control signal producer is changed to significant condition with first control signal when detecting unit detects the civil power supply regular power, and when detecting the civil power interruption of power supply, detecting unit is changed to disarmed state, described three-phase pure wave inverter unit has first acceptance division, it receives described first control signal and notify described three-phase pure wave inverter unit starting emergency operating when described first control signal is changed to disarmed state, described switch control unit has second acceptance division, and it receives described first control signal and notifies the control part of described switch control unit to control closed first switch when described first control signal is changed to significant condition.
As preferably, described three-phase pure wave inverter unit has first sending part, it is connected to described switch control unit, and described three-phase pure wave inverter unit produces second control signal and is sent to described switch control unit to control described switch control unit in one of them of only closed first switch of synchronization and second switch by described first sending part.
As preferably, described three-phase pure wave inverter unit has the 3rd acceptance division, it is used to receive the 3rd control signal, stop emergency operating in the inverter of three-phase pure wave described in emergency operating process unit under the control of described the 3rd control signal, perhaps described three-phase pure wave inverter unit shields the startup of emergency operating under the control of described the 3rd control signal when emergency operating does not start as yet.
As preferably, the 3rd acceptance division of described three-phase pure wave inverter unit is connected to elevator and receives described the 3rd control signal from described elevator.
As preferably, described three-phase pure wave inverter unit also comprises second sending part, and it is connected to elevator to send the emergency rating signal to elevator.
As preferably, described three-phase pure wave inverter unit comprises that the model that is used to produce three-phase pure wave pwm signal is the chip of HT3183A.
As preferably, described three-phase pure wave inverter unit has the crystal oscillator that can change, and the crystal oscillator of change has different concussion frequencies, corresponding to the three-phase pure wave pwm signal of different frequency.
Described three phase transformer is set to and can changes, and to export the three-phase pure wave voltage of different amplitudes, described characteristic parameter comprises no-load voltage ratio, leakage inductance and/or frequency to the three phase transformer of change corresponding to the different characteristic parameter.
Elevator still can normally move in a period of time that power supply for elevator of the present invention can be guaranteed to have no progeny in civil power, and do not need the internal circuit configuration of the control system of elevator itself is made any change, its implementation is simple and easy to usefulness, and can improve elevator single-piece safe operation coefficient.
Description of drawings
Fig. 1 is the structural representation of the elevator emergency device of prior art;
Fig. 2 is the structural representation of power supply for elevator of the present invention;
Fig. 3 is the circuit diagram of each control signal in the power supply for elevator of the present invention;
Fig. 4-7 is the circuit diagram of each circuit part in the three-phase pure wave inverter unit in the power supply for elevator of the present invention.
The specific embodiment
Followingly embodiments of the invention are elaborated with reference to accompanying drawing.
Fig. 2 is the structural representation of power supply for elevator of the present invention, as shown in Figure 2, power supply for elevator of the present invention comprises first switch 7, second switch 9, detecting unit 5, switch control unit 6, three-phase pure wave inverter unit 8, three phase transformer 10 and charger 3 and storage battery 4.
Wherein, first switch 7 is connected between civil power 1 and the elevator 2 civil power is sent to elevator 2, and detecting unit 5 is connected to civil power 1 so that whether civil power is interrupted detecting.Charger 3 is connected to civil power 1 and storage battery 4, to utilize civil power storage battery 4 is charged.Storage battery 4 is connected to three-phase pure wave inverter unit 8, being that three-phase pure wave inverter unit 8 provides standby power when civil power interrupts.
Detecting unit 5 can have the control signal generating unit, it receives switch control unit 6 and three-phase pure wave inverter unit 8 simultaneously so that control signal CS1 to be provided, the control signal generating unit is changed to this control signal CS1 significant condition and is changed to disarmed state when detecting unit 5 detects civil power 1 interruption of power supply when detecting unit 5 detects civil power 1 supply regular power, the example of the generation functional block diagram of CS1 signal is seen Fig. 3 A.Three-phase pure wave inverter unit 8 is connected to three phase transformer 10, and three phase transformer 10 is connected with second switch 9, and second switch 9 is connected to elevator 2 to transmit the standby three-phase power that is produced by three phase transformer 10 to elevator 2 when civil power interrupts.
In one embodiment, three-phase pure wave inverter unit 8 also has the 3rd acceptance division, and it can receive from exterior control signal CS3 as cut-off command.For example three-phase pure wave inverter unit 8 stops emergency operating under the control of control signal CS3 when the 3rd acceptance division of three-phase pure wave inverter unit 8 receives control signal CS3.Control signal CS3 can be from elevator, promptly, be in the process of emergency operating at elevator, the 3rd acceptance division of three-phase pure wave inverter unit 8 can receive this control signal CS3 from elevator 2, at this moment control signal CS3 can be that elevator 2 interior personnel operation elevator 2 interior for example buttons send to instruct three-phase pure wave inverter unit 8 to stop emergency operating, and the example of the acceptor circuit of this control signal CS3 is seen Fig. 3 C.Control signal CS3 can also for example control key of position sends outside the elevator 2 by being arranged on, so that the staff is making three-phase pure wave inverter unit 8 stop emergency operating according to demand in elevator is in the process of emergency operating outside the elevator 2.In addition, for example when for the needs that keep in repair during the manual-lock civil power, at this moment emergency operating starts does not as yet need to start yet, and described three-phase pure wave inverter unit 8 can shield the startup of emergency operating under the control of described the 3rd control signal CS3.
In the embodiment that uses control signal CS3, in case three-phase pure wave inverter unit 8 can detect the CS3 invalidating signal then promptly stopping emergency operating, this can carry out elevator 2 has been finished necessary work during emergency operating after, though promptly civil power 1 does not restore electricity as yet, also can manually stop the emergency operating of three-phase pure wave inverter unit 8 to save standby power by the related work personnel.
When the civil power supply regular power, first switch, 7 closures that are connected to civil power 1 are to flow to the three-phase mains in elevator 2, and elevator 2 is in normal operation, and concrete working process is as follows: regularly or aperiodically whether supply regular power detects detecting unit 5 to civil power 1.When civil power 1 supply regular power, detecting unit 5 output control signal CS1 are to second acceptance division of switch control unit 6 and first acceptance division of three-phase pure wave inverter unit 8, at this moment because civil power 1 supply regular power so control signal CS1 are significant condition, therefore three-phase pure wave inverter unit 8 does not start emergency operating, second acceptance division of switch control unit 6 is when to detect the control signal CS1 that receives be effective, the control part of switch control unit 6 promptly transmits control signal CS4 with closed first switch 7 to first switch 7, makes elevator 2 normal operation under the power supply of civil power 1.The example of the generation circuit of CS4 signal is seen Fig. 3 D.
In civil power 1 supply regular power, the charger 3 that is connected to civil power 1 utilizes civil power to storage battery 4 chargings, and the state that charger 3 can be set to detect storage battery 4 determines whether to storage battery 4 chargings and when stop to storage battery 4 chargings so that prevent storage battery 4 being overcharged.
In one embodiment, after 4 chargings of 3 pairs of storage batterys of charger finished, exportable charging completion signal was so that the staff monitors it.
In another embodiment, charger 3 is free of attachment to civil power 1 but is connected to elevator 2.When civil power 2 supply regular powers, elevator 2 possesses generating state when descending, so charger 3 can utilize the generatings of elevator 2 itself that storage battery 4 is charged, thereby effectively utilizes electric power energy.
When civil power 1 interrupted suddenly, power supply for elevator shown in Figure 2 was in standby mode of operation, and concrete working process is as follows:
Detecting unit 5 detects civil power 1 interruption of power supply, then its control signal generating unit places disarmed state with control signal CS1, second acceptance division of switch control unit 6 detects the control signal CS1 of reception when invalid, and the control part control of switch control unit 6 disconnects first switch 7.At this moment first acceptance division of three-phase pure wave inverter unit 8 is owing to its control signal CS1 that receives is that disarmed state notifies three-phase pure wave inverter unit 8 to start emergency operating.
Three-phase pure wave inverter unit 8 can have first sending part and be used to send second control signal (CSE) that three-phase pure wave inverter unit 8 produces, be specially, after three-phase pure wave inverter unit 8 started emergency operating, switch control unit 6 received the control signal CSE that is changed to significant condition from first sending part of three-phase pure wave inverter unit 8.Under the control of control signal CSE, switch control unit 6 can only closed first switch 7 and one of them of second switch 9 at synchronization.Promptly, no matter which kind of state the CS1 signal is, its control part disconnects first switch 7 closed second switch 9 simultaneously when switch control unit 6 receives the control signal CSE of significant condition, its control part disconnects second switch 9 closed first switch 7 simultaneously when switch control unit 6 receives the control signal CSE of disarmed state, to guarantee when detecting civil power 1 supply regular power and three-phase pure wave inverter unit 8 and be not in emergency operating just closed first switch 7, prevent that elevator 2 from receiving duplex feeding simultaneously.
In another embodiment, first acceptance division of three-phase pure wave inverter unit 8 is when the control signal CS1 that detects reception is disarmed state, also detect an outside that receives and enable whether control signal (not shown) effectively starts as three-phase pure wave inverter unit 8 and the necessary condition of operation, and be invalid and to enable control signal be just to start operation under the actv. situation in this outside, thereby can further the emergency operating of three-phase pure wave inverter unit 8 be controlled and intervene from the outside at control signal CS1.
After three-phase pure wave inverter unit 8 started emergency operating, switch control unit 6 transmitted control signal CS5 with closed second switch 9 to second switch 9.The example of the generation circuit of CS5 signal is seen Fig. 5 E.
In one embodiment, three-phase pure wave inverter unit 8 also comprises second sending part, it is connected to elevator 2 when civil power interrupts emergency rating signal CS2 is sent to elevator 2, thereby the notice elevator is in standby mode of operation 2 this moments, thereby the related personnel can finish necessary work as soon as possible according to emergent notice before the electric weight of storage battery 4 is used up.The example of the generation circuit of CS2 signal is seen Fig. 3 B.
Three-phase pure wave inverter unit 8 is after starting operation under the electric power supply of storage battery 4, can directly export three-phase pure wave pwm signal to three phase transformer 10, also can when detection confirms that it is effective enabling control signal CS3 once more, export three-phase pure wave pwm signal to three phase transformer 10.Has the crystal oscillator that can change in the three-phase pure wave inverter unit 8, can be by the crystal oscillator in the three-phase pure wave inverter unit 8 being changed the three-phase pure wave pwm signal frequency that changes 8 outputs of three-phase pure wave inverter unit for the crystal oscillator of different oscillation frequency, thereby make power supply for elevator of the present invention when emergent the use, can export the voltage of required frequency to elevator, to be applicable to the elevator of different operating frequency, for example 50Hz or 60Hz.
10 pairs of three phase transformers receive three-phase pure wave pwm signal to carry out after leakage inductance filtering and voltage promotes, and the output three-phase electricity is to elevator 2, make elevator 2 can be in the time of one section in still with normal condition work.Three phase transformer 10 can be set to and can change, the different three phase transformers that change corresponding to the different characteristic parameter to export the three-phase pure wave voltage of different amplitudes, for example 200V, 380V or 400V etc., export the three phasevoltage of different amplitudes, described characteristic parameter comprises no-load voltage ratio, leakage inductance and/or frequency.
After civil power 1 restores electricity, detecting unit 5 detects the civil power supply regular power, its control signal generating unit then is changed to control signal CS1 effectively, and first acceptance division of three-phase pure wave producer 8 can notify three-phase pure wave producer 8 to stop emergency operating after effectively at the CS1 signal that detects reception.
Fig. 4-7 is the circuit diagram of each circuit part in the three-phase pure wave inverter unit 8, comprise as shown in Figure 4 pure wave pwm signal generation circuit and power driving circuit, auxiliary power circuit as shown in Figure 5 and accessory feed control circuit, power output grade circuit as shown in Figure 6, and input direct voltage telemetry circuit as shown in Figure 7, input stage emperature emasuring and controlling circuit, direct current circuit telemetry circuit, alternating-current voltage/AC voltage output telemetry circuit and ac output voltage amplitude fine setting control circuit.Foregoing circuit is the exemplary circuit configuration for adopting in the present embodiment partly, and the foregoing circuit structure that the three-phase pure wave producer 8 among the present invention is not limited to adopt present embodiment to provide realizes.
Wherein, as shown in Figure 4, the model that has adopted Harmotech Technology (Beijing) Co., Ltd. to produce in the three-phase pure wave inverter unit 8 in the present embodiment is the acp chip of the chip of HT3183A as three-phase pure wave pwm signal generation circuit part.
As mentioned above, in a period of time after civil power 1 is stopped power supply suddenly, power supply for elevator of the present invention can provide standby power to elevator, still can normally move in a period of time that elevator has no progeny in civil power guaranteeing.And because power supply for elevator of the present invention only provides power supply for elevator, therefore do not need the internal circuit configuration of the control system of elevator itself is made any change, guaranteed that apparatus for controlling elevator can control elevator all the time, also simplify simultaneously the internal circuit configuration of power supply for elevator itself, reduced productive costs to a great extent.Implementation of the present invention is simple and easy to usefulness, can improve elevator single-piece safe operation coefficient.
It more than is the explanation of embodiments of the invention; but the present invention is not limited to above-mentioned particular implementation example; do not deviating under spirit of the present invention and the real situation thereof; skilled personnel can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong within the claims protection domain of the present invention.
Claims (10)
1. power supply for elevator, it is connected to civil power (1) and elevator (2), described power supply for elevator comprise with civil power (1) bonded assembly charger (3) and with charger (3) bonded assembly storage battery (4), it is characterized in that described power supply for elevator also comprises:
Detecting unit (5), it is connected to civil power (1) and detects whether supply regular power of civil power (1);
Three-phase pure wave inverter unit (8), it is connected to storage battery (4) and detecting unit (5), and starts emergency operating with output three-phase pure wave pwm signal when described detecting unit (5) detects civil power (1) interruption of power supply under the power supply of storage battery (4);
First switch (7), it is connected between civil power (1) and the elevator (2);
Second switch (9), it is connected between elevator (2) and the three phase transformer (10);
Switch control unit (6), it is connected to described detecting unit (5), first switch (7) and second switch (9), described switch control unit (6) has control part, and it controls closed first switch (7) and control closed second switch (9) when described three-phase pure wave inverter unit (8) startup emergency operating when described detecting unit (5) detects civil power (1) supply regular power; And
Described three phase transformer (10), it is connected to three-phase pure wave inverter unit (8) and second switch (9), described three phase transformer (10) is used for the three-phase pure wave pwm signal of three-phase pure wave inverter unit (8) output is converted to three-phase pure wave voltage, and provides standby power by second switch (9) for elevator (2).
2. power supply for elevator as claimed in claim 1, it is characterized in that, described detecting unit (5) has the control signal generating unit, it produces first control signal (CS1), described control signal generating unit is changed to described first control signal (CS1) significant condition and when detecting unit (5) detects civil power (1) interruption of power supply described first control signal (CS1) is changed to disarmed state when detecting unit (5) detects civil power (1) supply regular power
Described three-phase pure wave inverter unit (8) has first acceptance division, and it receives described first control signal and notifies described three-phase pure wave inverter unit (8) to start emergency operating when described first control signal is changed to disarmed state,
Described switch control unit (6) has second acceptance division, and it receives described first control signal and notifies the control part of described switch control unit (6) to control closed first switch (7) when described first control signal is changed to significant condition.
3. power supply for elevator as claimed in claim 2, it is characterized in that, described three-phase pure wave inverter unit (8) has first sending part, it is connected to described switch control unit (6), and described three-phase pure wave inverter unit (8) produces second control signal (CSE) and is sent to described switch control unit (6) to control described switch control unit (6) in one of them of only closed first switch of synchronization (7) and second switch (9) by described first sending part.
4. power supply for elevator as claimed in claim 1, it is characterized in that, described three-phase pure wave inverter unit (8) has the 3rd acceptance division, it is used to receive the 3rd control signal (CS3), stops emergency operating in the inverter unit of three-phase pure wave described in the emergency operating process (8) under the control of described the 3rd control signal (CS3).
5. power supply for elevator as claimed in claim 1, it is characterized in that, described three-phase pure wave inverter unit (8) has the 3rd acceptance division, it is used to receive the 3rd control signal (CS3), and described three-phase pure wave inverter unit (8) does not shield the startup of emergency operating under the control of described the 3rd control signal (CS3) when emergency operating starts as yet.
6. as claim 4 or 5 described power supply for elevator, it is characterized in that described the 3rd acceptance division of described three-phase pure wave inverter unit (8) is connected to elevator (2) to receive described the 3rd control signal (CS3) from described elevator (2).
7. power supply for elevator as claimed in claim 1 is characterized in that, described three-phase pure wave inverter unit (8) also comprises second sending part, and it is connected to elevator (2) to send emergency rating signal (CS2) to elevator (2).
8. power supply for elevator as claimed in claim 1 is characterized in that, described three-phase pure wave inverter unit (8) comprises that the model that is used to produce three-phase pure wave pwm signal is the chip of HT3183A.
9. power supply for elevator as claimed in claim 1 is characterized in that, described three-phase pure wave inverter unit (8) has the crystal oscillator that can change, and the crystal oscillator of change is corresponding to the three-phase pure wave pwm signal of different frequency.
10. power supply for elevator as claimed in claim 1, it is characterized in that, described three phase transformer (10) is set to and can changes, to export the three-phase pure wave voltage of different amplitudes, described characteristic parameter comprises no-load voltage ratio, leakage inductance and/or frequency to the three phase transformer that changes corresponding to the different characteristic parameter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010615291 CN102040133B (en) | 2010-12-30 | 2010-12-30 | Elevator power supply device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010615291 CN102040133B (en) | 2010-12-30 | 2010-12-30 | Elevator power supply device |
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| CN102040133A true CN102040133A (en) | 2011-05-04 |
| CN102040133B CN102040133B (en) | 2012-12-12 |
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| CN 201010615291 Expired - Fee Related CN102040133B (en) | 2010-12-30 | 2010-12-30 | Elevator power supply device |
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Cited By (9)
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| CN102931718A (en) * | 2011-08-08 | 2013-02-13 | 秦皇岛国安电力电子技术有限公司 | Emergency power supply device and method for lift |
| CN106655471A (en) * | 2016-12-28 | 2017-05-10 | 温州申嘉电梯科技有限公司 | Elevator car emergency power supply |
| CN106980279A (en) * | 2017-04-11 | 2017-07-25 | 快意电梯股份有限公司 | Auto-power on power-down control device for elevator |
| CN107416624A (en) * | 2017-05-25 | 2017-12-01 | 厦门微智电子科技有限公司 | The elevator emergency for inductively detecting door lock break-make using detection declutches supply unit |
| CN107840219A (en) * | 2017-11-21 | 2018-03-27 | 广州广日电气设备有限公司 | Band-type brake coil control circuit, method, band-type brake control power-supply device and elevator |
| CN108190678A (en) * | 2017-12-25 | 2018-06-22 | 佛山市顺德区鼎力电气有限公司 | A kind of elevator faults determination method and intelligent deliverance apparatus |
| CN109720949A (en) * | 2017-10-30 | 2019-05-07 | 上海三菱电梯有限公司 | Elevator power supply system |
| CN111788138A (en) * | 2018-03-05 | 2020-10-16 | 三菱电机株式会社 | Elevator control device and elevator control method |
| CN116534692A (en) * | 2023-07-06 | 2023-08-04 | 通用电梯股份有限公司 | Elevator power failure emergency leveling system and control method thereof |
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| CN102931718A (en) * | 2011-08-08 | 2013-02-13 | 秦皇岛国安电力电子技术有限公司 | Emergency power supply device and method for lift |
| CN106655471A (en) * | 2016-12-28 | 2017-05-10 | 温州申嘉电梯科技有限公司 | Elevator car emergency power supply |
| CN106655471B (en) * | 2016-12-28 | 2023-06-20 | 温州申嘉电梯科技有限公司 | Elevator car emergency power supply |
| CN106980279A (en) * | 2017-04-11 | 2017-07-25 | 快意电梯股份有限公司 | Auto-power on power-down control device for elevator |
| CN106980279B (en) * | 2017-04-11 | 2024-01-02 | 快意电梯股份有限公司 | Automatic power-on and power-off control device for elevator |
| CN107416624A (en) * | 2017-05-25 | 2017-12-01 | 厦门微智电子科技有限公司 | The elevator emergency for inductively detecting door lock break-make using detection declutches supply unit |
| CN109720949A (en) * | 2017-10-30 | 2019-05-07 | 上海三菱电梯有限公司 | Elevator power supply system |
| CN107840219A (en) * | 2017-11-21 | 2018-03-27 | 广州广日电气设备有限公司 | Band-type brake coil control circuit, method, band-type brake control power-supply device and elevator |
| CN108190678B (en) * | 2017-12-25 | 2023-06-02 | 佛山市顺德区鼎力电气有限公司 | Elevator fault judging method and intelligent rescue device |
| CN108190678A (en) * | 2017-12-25 | 2018-06-22 | 佛山市顺德区鼎力电气有限公司 | A kind of elevator faults determination method and intelligent deliverance apparatus |
| CN111788138A (en) * | 2018-03-05 | 2020-10-16 | 三菱电机株式会社 | Elevator control device and elevator control method |
| CN111788138B (en) * | 2018-03-05 | 2021-11-12 | 三菱电机株式会社 | Elevator control device and elevator control method |
| CN116534692A (en) * | 2023-07-06 | 2023-08-04 | 通用电梯股份有限公司 | Elevator power failure emergency leveling system and control method thereof |
| CN116534692B (en) * | 2023-07-06 | 2023-09-26 | 通用电梯股份有限公司 | Elevator power failure emergency leveling system and control method thereof |
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