JP2009035408A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator capable of reducing the cost of apparatuses for elevating/lowering a plurality of cars during power failure, and to enhance the services for passengers. <P>SOLUTION: When a power failure detector 14 detects power failure, a group supervisory operation control device 22 selects a machine for restarting the normal operation. A changing circuit 23 turns on a contactor 15 for the drive power supply and a contactor 17 for the control power supply of the selected machine, and starts the power supply from an electric storage device 21 to a driving system circuit and a control circuit 12 of the selected machine to restart the normal operation. The group supervisory operation control device 22 further selects a machine for the landing operation during power failure. The changing circuit 23 turns on the contactor 15 for the drive power supply and the contactor 17 for the control power supply of this selected machine, and starts the power supply from the electric storage device 21 to the driving system circuit and the control circuit 12 of the selected machine to start the landing operation during the power failure. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator having an operation function during a power failure.

  Conventionally, in an elevator, when a power failure occurs, the power of the car is lost, and this car is suddenly braked and stopped. For such a time, for example, there is a method in which a self-generating device is provided in a building-side facility. However, since this method is very costly, a power failure floor landing device having a built-in battery is generally used.

  This landing device at the time of a power failure is a device that is operated by a battery at the time of a power failure and rescues passengers from the inside of the car by driving the stopped car at a low speed to the nearest floor. For example, one landing device for power failure is added to each elevator. Further, for example, as disclosed in Patent Document 1, only one landing device at the time of power failure is mounted, and this landing device at the time of power failure operates each of a plurality of cars in order to make the landing device at the time of power failure. Some have reduced this cost.

Further, as disclosed in, for example, Patent Document 2, regenerative energy during regenerative operation is stored in a power storage device, and the stored energy is used during powering operation with a load, or a backup power source for resuming normal operation during a power failure There is something to use as.
JP 7-252049 A JP 2005-324887 A

  In recent years, the number of buildings has increased, and the elderly population has increased. As mentioned above, if the landing device is used during a power outage, passengers can get out of the car even during a power outage, but if the passenger is an elderly person and the building is a high-rise apartment, the elderly person It is assumed that it will be left behind on a higher floor.

  In addition, the power storage device that stores the regenerative energy during the regenerative operation has a larger power storage capacity than the battery of the landing device at the time of power outage described above, and normal operation can also be performed using this device. However, this power storage device is more expensive than the landing device at the time of a power failure, and as described above, in order to prevent the elderly from being left on the higher floors, the power storage device is not installed in each of the multiple units. The cost is enormous.

  Therefore, an object of the present invention is to provide an elevator that can improve the service to passengers while reducing the cost of equipment for raising and lowering a plurality of cars at the time of a power failure.

  In other words, the elevator according to the present invention is provided for each of a plurality of units, and is operated by a commercial power source during normal times to raise and lower the car, a power storage device that stores power, and a power failure of the commercial power source. When the power failure detection means detects a power failure, the power stored in the power storage device is supplied to the power circuit of a specific unit among a plurality of units, so that By driving and supplying the power stored in the power storage device to the power supply circuit of the car that is not landing on a car other than a specific car, the car of that car is moved up and down at a lower speed than during normal operation. It is characterized by being made to land on the nearest floor.

  ADVANTAGE OF THE INVENTION According to this invention, the service for a passenger | crew can be improved, after reducing the cost of the apparatus for the raising / lowering of the some vehicle at the time of a power failure.

Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
First, a first embodiment of the present invention will be described.
FIG. 1 is a diagram schematically showing the configuration of an elevator according to the first embodiment of the present invention. In the first embodiment, only two units are illustrated and described.

  In the example shown in FIG. 1, “a” is added to the end of the reference numerals of the constituent elements of the first elevator, and “n” is added to the end of the reference numerals of the constituent elements of the second and subsequent elevators. Hereinafter, when referring generically, it demonstrates with the number which abbreviate | omitted these characters.

Each elevator has a commercial power source 1, a rectifier 2 that converts an AC voltage of the commercial power source 1 into a DC voltage, a smoothing capacitor 3 that smoothes a ripple of the DC voltage, and a DC voltage as a drive system. The inverter 4 which converts into the alternating voltage of a variable voltage variable frequency and the electric motor 5 which receives the electric power from this inverter 4, and operate | moves are provided.
Further, a resistance chopper circuit 6 in which a resistor and a self-extinguishing element are connected in series is provided between the DC buses between the rectifier 2 and the inverter 4.

  The commercial power source 1 is a three-phase power source. The AC voltage from the three-phase power source is full-wave rectified by the rectifier 2 and the ripple is absorbed by the smoothing capacitor 3 and smoothed to DC. The smoothed direct current is supplied to the inverter 4, converted into an alternating voltage having a predetermined frequency, and supplied to the electric motor 5 as drive power.

  The electric motor 5 is rotationally driven by such electric power supply, and the sheave 7 is rotated accordingly. Through the rope wound around the sheave 7, the counterweight 9 is lifted and lowered in a lifting manner in the hoistway. Operate.

  Each elevator unit is operated by a load detection device 11 that detects the load in the car 9, normally, that is, when it is not during a power failure, and is operated by a commercial power source 1 and is driven according to a predetermined traveling pattern. Is controlled by the inverter 4 so as to be output to the electric motor 5. The control circuit 12 controls the raising and lowering operation of the car 9. The car 9 is normally operated at the time of a power failure, that is, the speed is lower than that at the time of operation according to call registration. The power failure operation unit 13 for controlling the landing operation at the time of power failure to be lifted and lowered at the nearest floor of the lift destination, the power failure detection device 14 which is a power failure detection means for detecting this at the time of a power failure, and the drive power contactor 15 A commercial power contactor 16 and a control power contactor 17 are provided.

  The power supply circuit of the elevator is a drive system circuit from the rectifier 2 to the inverter 4 and a power supply circuit in the control circuit 12. The control circuit 12 and the power failure operation unit 13 are connected to a pulse generator 8 that detects shaft rotation of the electric motor 5 and generates a number of pulse signals proportional to the rotation angle.

  The elevator also includes one charging / discharging circuit 20 and one power storage device 21 to be used in common at the time of a power failure for each unit. The power storage device 21 is composed of, for example, a secondary battery such as a nickel metal hydride battery, a lithium ion battery, or a lithium polymer battery, or a large capacity capacitor such as an electric double layer capacitor, and supplies power to the inverter 4 during regenerative operation of the car 9. Regenerative energy (electric power) generated between DC buses that are lines is stored.

  The power storage device 21 can store electric power necessary for normal operation of at least one unit at the time of a power outage and landing operation at the time of power outage of at least one other unit. The stored electric power is used as a drive power source for the elevator 9 and the control circuit 12 during a power failure.

  The commercial power contactor 16 of each unit is provided between the commercial power source 1 and the rectifier 2 and is normally short-circuited, that is, turned on, and opened during a power failure, that is, turned off. In this embodiment, the commercial power source 1, the power failure detection device 14, and the commercial power source contactor 16 are configured to be provided in each unit, but one commercial power source 1 is shared by each unit, and the power failure detection device 14. And it is good also as one contactor 16 for commercial power supplies.

  The charge / discharge circuit 20 is a circuit for switching charge / discharge of the power storage device 21. The charging / discharging circuit 20 is connected to a DC bus between the rectifier 2 and the inverter 4 via a drive power contactor 15 of each unit. The charging / discharging circuit 20 includes a switching element (not shown) for switching between a charging operation and a discharging operation.

In this embodiment, during normal times, the drive power contactor 15a for the first elevator is on, and the elevator power contactor 15n for the second and subsequent elevators is off.
Moreover, the control power contactor 17 of each unit is provided between the charge / discharge circuit 20 and the control circuit 12, and is normally in an OFF state.

As described above, regenerative energy is generated from the inverter 4 to the input terminal side during the regenerative operation of the car 9. The charging / discharging circuit 20 switches on / off of the switching elements in the circuit so that the power storage device 21 is charged from between the DC buses of the drive system circuit of the No. 1 elevator.
Moreover, at the time of a power failure, the charging / discharging circuit 20 switches on / off of the switching element in a circuit so that the electric power stored in the power storage device 21 is discharged.

  The drive power contactor 15 and the control power contactor 17 of each unit are all turned on during a power failure. Thereby, the electric power stored in the power storage device 21 is supplied to the control circuit 12 between the DC buses of the drive system circuit of each unit.

  In addition, as shown in FIG. 1, a group management control device 22 is provided for performing group management control of the elevators of each unit. The group management control device 22 is connected to the power failure detection device 14 and the control circuit 12 of each unit.

  A switching circuit 23 is connected to the group management control device 22. The switching circuit 23 switches on and off the switching elements of the drive power contactor 15, the commercial power contactor 16, the control power contactor 17, and the charge / discharge circuit 20. The switching circuit 23 may be built in the group management control device 22.

  In addition, the group management control device 22, the switching circuit 23, and the power failure detection device 14 incorporate a battery that stores power for operation during a power failure. The charging / discharging circuit 20 charges the regenerative energy generated on the input terminal side from the inverter 4 to the battery of the group management control device 22, the switching circuit 23, and the power failure detection device 14, respectively. The group management control device 22 and the power failure detection device 14 operate with power from the commercial power source 1 during normal times, but are switched to battery operation during a power failure.

FIG. 2 is a block diagram showing the configuration of the power failure operation unit of the elevator according to the first embodiment of the present invention.
As shown in FIG. 2, the power failure operation unit 13 includes a car position detection unit 31 that detects the position of the car 9 based on a signal from the pulse generator 8, and a load signal input unit that inputs a load signal from the load detection device 11. 32, an operation direction determination unit 33 for determining the operation direction of the landing operation at the time of power failure based on the load signal input by the load signal input unit 32, and a speed control for controlling the speed of the car 9 in the landing operation at the time of power failure. And a landing detector 35 that detects landing of the car 9 on the nearest floor on the basis of the car position detected by the car position detector 31 during the power outage landing operation.

  Next, the operation of the elevator having the configuration shown in FIGS. 1 and 2 will be described. FIG. 3 is a flowchart showing an example of the control operation by the elevator according to the first embodiment of the present invention. In this embodiment, one unit performs normal operation during a power failure, and each of the other units performs landing operation during a power failure. Passengers who get off from the car 9 of the car that performed landing operation at the time of a power outage will get into the car 9 of the car that has resumed normal operation as described above if the landing call operation is performed on the floor where the car got off. I can do it.

  First, when the commercial power source 1 fails, the power failure detection device 14 connected to the commercial power source 1 detects a power failure and outputs a power failure notification signal indicating this power failure to the group management control device 22 (step S1).

  When the power failure notification signal from the power failure detection device 14 is input, the group management control device 22 outputs a signal for instructing switching of the commercial power contactor 16 of each unit to the switching circuit 23. When the signal from the group management control device 22 is input, the switching circuit 23 turns off the commercial power supply 1 by turning off the commercial power supply contactor 16 of each unit (step S2). The commercial power contactor 16 of each unit remains off until the commercial power source 1 is restored. When the commercial power source 1 is thus cut off, a brake device (not shown) of each car is operated and the elevator 9 stops moving up and down.

  In normal times, the control circuit 12 of each car detects the car position of the car 9 based on the signal from the pulse generator 8, and uses the car position, call registration information, and the load signal from the load detection device 11. A signal indicating the indicated load value is output to the group management control device 22. After the commercial power source 1 is shut off, the group management control device 22 performs normal operation of each unit based on the car position, call registration information and load value of each unit indicated by a signal from the control circuit 12 of each unit. One machine to be resumed is selected (step S3).

  Specifically, the group management control device 22, for example, in order to efficiently transport passengers of the car 9 of each car to the entrance floor, for example, the car position is as high as possible and the load value is as low as possible. Then, a unit that can be moved up and down to the floor indicated by the call registration information of each unit with as few ascending / descending operations is selected as a unit for which normal operation is resumed.

  However, when the operation mode is the inspection operation mode or when a failure is detected, the control circuit 12 of each unit outputs a notification signal indicating this to the group management control device 22, and the group management control device 22 manages the machine from which this notification signal is output. The group management control device 22 does not select this output source number as a normal operation resumption target number.

The group management control device 22 outputs to the switching circuit 23 a signal for instructing power feeding to the power supply circuit of the car selected as the car whose normal operation is to be resumed.
When the signal from the group management control device 22 is input, the switching circuit 23 turns on the drive power supply contactor 15 and the control power supply contactor 17 of the vehicle whose normal operation is to be resumed, and the power storage device 21 is discharged. The switching elements in the charge / discharge circuit 20 are switched so that As a result, the power supply from the power storage device 21 to the DC buses of the drive system circuit of the vehicle whose normal operation is to be resumed and to the control circuit 12 is started (step S4).

  Then, the group management control device 22 outputs a signal instructing the control circuit 12 of the machine that is the target of normal operation resumption to resume normal operation. When the control circuit 12 of the machine that is the target of normal operation resumption receives the normal operation resumption instruction signal from the group management control device 22, if there is a call registration, the braking by the brake device is released and normal operation is resumed (step) S5). Therefore, the car 9 of this unit responds to the car call and the landing call.

  In other words, the group management control device 22 and the control circuit 12 supply the power stored in the power storage device 21 to the power circuit of a specific unit among a plurality of units in the event of a power failure, thereby performing normal operation of the car of that unit. It functions as the first operation control means to be performed.

  Then, the group management control device 22 selects one car other than the car selected as the car for which normal operation is to be resumed as the car for landing operation during power failure (step S6). However, the group management control device 22 does not select the above-described inspection operation mode and the number of the output source of the notification signal indicating the failure as the number of landing operation targets at the time of power failure.

  The group management control device 22 outputs a signal for instructing power supply to the power supply circuit of the selected number machine to the switching circuit 23. When the signal from the group management control device 22 is input, the switching circuit 23 turns on the drive power contactor 15 and the control power contactor 17 of the machine selected in the process of step S 6, The switching element in the charge / discharge circuit 20 is kept in the ON state so that the discharge is performed. As a result, power feeding from the power storage device 21 to the control circuit 12 and between the DC buses of the drive system circuit of the machine that is the target for landing operation during a power failure is started (step S7).

  Then, the group management control device 22 outputs a signal instructing the start of the landing operation at the time of power failure to the control circuit 12 of the unit selected as the landing operation target at the time of the power failure. When the signal from the group management control device 22 is input, the control circuit 12 outputs a signal instructing the start of landing operation at the time of power failure to the power failure operation unit 13 of the own machine.

  When the power failure operation unit 13 inputs a signal from the control circuit 12, the car position detection unit 31 of the power failure operation unit 13 receives the signal from the pulse generator 8 and detects the position of the car 9. If the car position detected by the car position detection unit 31 is between the floors, that is, outside the door zone (YES in step S8), the operation direction determination unit 33 is based on the load signal input by the load signal input unit 32. The driving direction of the car 9 is determined (step S9).

  In this embodiment, when the weight of the passenger in the car 9 is half of the maximum load capacity, the total weight of the weight of the passenger and the weight of the car 9 is suspended from the weight of the counterweight 10. That is, when the weight of the passenger in the car 9 is less than half of the maximum loading load, or when the passenger is not on the car, the total weight described above is lighter than the weight of the counterweight 10. When the weight of the passenger in the car 9 exceeds half of the maximum load capacity, the total weight becomes heavier than the weight of the counterweight 10.

  Thus, considering the magnitude relationship between the total weight and the weight of the counterweight 10, when the total weight is lighter than the weight of the counterweight 10 during a power failure, the counterweight 9 is moved downward by moving the counterweight 10 downward. If the car is moved upward, the load is lighter than when the car 9 is moved downward. In addition, when the total weight is heavier than the weight of the counterweight 10, if the counterweight 10 is moved upward and the car 9 is moved downward, it is compared with the case where the car 9 is moved upward. And the load is light.

  Therefore, when the load value indicated by the load signal input by the load signal input unit 32 is equal to or less than half of the maximum load weight of the car 9, the driving direction determination unit 33 is landing operation during power failure of the car 9. When the load value mentioned above exceeds half of the maximum load weight, the ascending / descending direction of the landing operation at the time of power failure is determined downward.

  And the power failure operation part 13 outputs the signal which instruct | indicates raising / lowering of the passenger car 9 to the direction which the driving | running direction determination part 33 determined to the control circuit 12 of the own machine. Further, the speed control unit 34 of the power failure operation unit 13 outputs a speed control signal for raising and lowering at a predetermined speed lower than that during normal operation to the control circuit 12. Thereby, the control circuit 12 of the power supply destination car releases the braking by the brake device and starts the landing operation at the time of power failure (step S10).

  That is, the group management control device 22, the control circuit 12, and the power failure operation unit 13 are the units in which the car 9 is not landing among the units other than the unit that resumes normal operation of the electric power stored in the power storage device 21 at the time of the power failure. By supplying the power to the power supply circuit, it functions as second operation control means for raising and lowering the car of the relevant car and landing on the nearest floor of the lift destination.

  When the landing detection unit 35 detects that the car 9 has landed on the nearest floor of the lift destination (YES in step S11), the power failure operation unit 13 of the power supply destination unit signals door opening control. Is output to the control circuit 12. When the control circuit 12 receives a signal from the power failure operation unit 13, the control circuit 12 performs door opening control (step S12).

Then, the power failure operation unit 13 outputs a signal for instructing the end of power supply for the landing operation at the time of power failure of the car 9 of the own car to the switching circuit 23.
When the signal from the power failure operation unit 13 is input, the switching circuit 23 turns off the drive power contactor 15 and the control power contactor 17 of the signal output source machine. Thereby, the power feeding from the power storage device 21 to the drive system circuit and the control circuit 12 of the car that performed the landing operation at the time of power failure is completed (step S13).

  In addition, when there is a car that is not selected as a landing operation target at the time of a power failure in addition to the car selected in the processes of step S3 and step S6, the processes after step S6 are performed again. By repeating this process, among the multiple units, each of the unselected units as the landing operation target at the time of power failure is sequentially selected as the landing operation target at the time of power failure.

  Further, when the result of the process of step S8 is “NO”, that is, the car position detected by the car position detecting unit 31 of the power failure operating unit 13 is not between the floors but in the door zone, the process proceeds to the process of step S12. .

  As described above, in the elevator according to the first embodiment of the present invention, the power storage device stores the electric power for the operation of the drive system circuit and the control circuit 12 of the car selected from a plurality of cars at the time of a power failure. Normal operation resumes by supplying from No. 21, and power for operation of the drive system circuit and control circuit 12 of the car selected from other cars is supplied from the power storage device 21 to start landing operation at power failure Let

  That is, by installing one power storage device 21 that can store the electric power required for normal operation of some of the units and the electric power required for landing operation of other units during a power failure, Unit 9 that not only rescued passengers in 9 but also resumed normal operation if passengers who got off from the car that landed at the time of a power outage made a landing call operation on the floor that got out of car 9 You can change to

  Therefore, the passengers of each unit that performed the landing operation at the time of power failure can move to the destination floor again after getting out of the car 9. Therefore, it is possible to improve the service to passengers while reducing the cost of equipment for raising and lowering a plurality of cars during a power failure.

  In this embodiment, it has been described that one of a plurality of units is selected as a unit whose normal operation is to be resumed. However, there are three or more units, and the power storage device 21 operates normally in the car 9 of the plurality of units. When the electric power necessary for landing operation at the time of a power failure of the car 9 of other cars can be stored, a plurality of cars may be selected as the cars for which normal operation is resumed. Thereby, even when many passengers are already in the car 9 of each car, the passengers of the car that performed the landing operation at the time of power failure can be transported efficiently.

  Further, as a method of selecting a plurality of units for which normal operation is to be resumed, in order to minimize the amount of discharge from the power storage device 21, the group management control device 22 selects the first unit for which normal operation is to be resumed. When the load value of the car 9 of the selected car is greater than or equal to a predetermined value, the number of cars proportional to the magnitude of this load value may be further selected as the car for which normal operation is to be resumed.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In addition, description of the same part as what was shown in FIG. 1 among the structures of the elevator which concerns on each following embodiment is abbreviate | omitted.
FIG. 4 is a diagram showing an outline of the configuration of the elevator according to the second embodiment of the present invention.
As shown in FIG. 4, in the elevator according to the second embodiment of the present invention, an announcement device 18 as a notification means is provided in the control circuit 12 in the car 9 of each car as compared with the first embodiment. Provided connected with.

  The announcement device 18 of each unit incorporates a storage device for storing announcement voice information. This storage device stores voice information for notifying passengers in the car 9 that normal operation has been resumed, and voice information for guidance during landing operation during a power failure. Audio information for guidance when resuming normal operation is, for example, “Power outage has occurred, but normal operation has resumed.” For example, audio information for guidance during landing operation during a power outage is “ As a power outage has occurred, we will stop operation at the nearest floor. Please change to another elevator from the floor where you got off. "

FIG. 5 is a flowchart showing an example of the control operation by the elevator according to the second embodiment of the present invention.
In this embodiment, after the processing from steps S1 to S5 described in the first embodiment is performed, the control circuit 12 of the unit that resumes normal operation outputs voice information for guidance when normal operation is resumed. Is output to the announcement device 18. When the announcement device 18 receives a signal from the control circuit 12, the announcement device 18 outputs voice information for guidance when resuming normal operation, out of the voice information stored in the storage device, into the car 9 (step S21). .

  Thereafter, after the processing from step S6 to step S10 described in the first embodiment is performed, the control circuit 12 of the unit that has started the landing operation at the time of power outage provides voice information for guidance at the time of landing operation at the time of power outage. Is output to the announcement device 18. When the announcement device 18 receives a signal from the control circuit 12, the announcement device 18 outputs voice information for guidance during landing operation at the time of power outage into the car 9 among the voice information stored in the storage device (step S22). ). Thereafter, the processing subsequent to step S11 described in the first embodiment is performed.

  As described above, in the elevator according to the second embodiment of the present invention, in addition to the features described in the first embodiment, the unit that resumed normal operation at the time of a power failure or the unit that started the landing operation at the time of a power failure Since an announcement for notifying the current driving situation is output in the car 9, the passengers in the car 9 of each car when a power failure occurs can grasp the driving situation.

  In particular, the passenger can be relieved by making an announcement to the car 9 that started landing operation at the time of power failure, and prompting the user to change to the car that resumed normal operation on the floor where he got off. It is possible to change to the car 9 of the car that resumed normal operation without getting lost.

  In this embodiment, it has been described that voice information is output in the car 9 of the car that has resumed normal operation or the car that has started landing operation at the time of a power failure. However, the present invention is not limited to this. For example, an indicator is provided in the car 9. It is good also as a structure which outputs the character information for the guidance to the effect of resuming normal driving | operation, and the landing operation at the time of a power failure to this display. Also, not only in the car 9 but also in a landing place on the floor where the landing operation was performed at the time of a power failure, it may be prompted to change to another unit that resumed normal operation by voice or text information. Good.

(Third embodiment)
Next, a third embodiment of the present invention will be described.
FIG. 6 is a diagram schematically showing the configuration of the elevator according to the third embodiment of the present invention.
As shown in FIG. 6, the elevator according to the third embodiment of the present invention has one rescue operation circuit 19 as a group management control device 22 or a control circuit for each unit as compared with the first embodiment. 12 is provided.
The rescue operation circuit 19 instructs the control circuit 12 of the car that has resumed normal operation to call and register the floor on which the car 9 of the car that performed the landing operation at the time of a power failure has landed.

FIG. 7 is a flowchart showing an example of the control operation by the elevator according to the third embodiment of the present invention.
In this embodiment, the processing from Steps S1 to S13 described in the first embodiment is performed, and after the processing in Step S13, the control circuit 12 of the car that performed the landing operation at the time of power outage is the stop floor of the car 9. A signal indicating the floor is output to the group management control device 22.

  The group management control device 22 detects the stop floor of this unit by inputting a signal from the control circuit 12 of the unit that performed the landing operation at the time of power failure (step S31). That is, the group management control device 22 functions as a floor detection unit that detects a floor that has been landed by a landing operation during a power failure.

Then, the group management control device 22 outputs the detected floor information and a signal indicating the output machine of the floor information to the rescue operation circuit 19.
When the rescue operation circuit 19 receives a signal from the group management control device 22, the rescue operation circuit 19 instructs the control circuit 12 of the machine that outputs the floor information to register the detected floor call as described above. Is output.

  The control circuit 12 performs call registration of the floor indicated by the signal from the rescue operation circuit 19 (step S32). That is, the control circuit 12 functions as a call registration means for performing call registration for the unit that has resumed normal operation at the stop floor of the unit that has performed landing operation during a power failure. Thus, the car 9 of the car that has resumed normal operation will land on the floor where the car 9 of the car that carried out the landing operation at the time of a power failure has stopped.

  As described above, in the elevator according to the third embodiment of the present invention, in addition to the features described in the first embodiment, the landing operation at the time of power failure was performed for the unit that resumed normal operation at the time of power failure. Because the call registration of the stop floor of the car 9 of the car was performed, the normal operation resumed even if the passenger who got off the car 9 of the car that landed at the time of the power outage did not perform the landing call operation. The car 9 of the Unit No. 9 is landed on the floor where the passenger has descended. Therefore, the passenger of the car that performed the landing operation at the time of power failure can smoothly change to the car 9 of the car that has resumed normal operation after getting out of the car 9.

  The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be omitted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

The figure which shows the outline of a structure of the elevator according to the 1st Embodiment of this invention. The block diagram which shows the structure of the power failure operation part of the elevator according to the 1st Embodiment of this invention. The flowchart which shows an example of the control action by the elevator according to the 1st Embodiment of this invention. The figure which shows the outline of a structure of the elevator according to the 2nd Embodiment of this invention. The flowchart which shows an example of the control action by the elevator according to the 2nd Embodiment of this invention. The figure which shows the outline of a structure of the elevator according to the 3rd Embodiment of this invention. The flowchart which shows an example of the control action by the elevator according to the 3rd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Commercial power source, 2 ... Rectifier, 3 ... Smoothing capacitor, 4 ... Inverter, 5 ... Electric motor, 6 ... Resistance chopper circuit, 7 ... Sheave, 8 ... Pulse generator, 9 ... Car, 10 ... Counterweight, 11 ... Load detection device, 12 ... control circuit, 13 ... blackout operation unit, 14 ... blackout detection device, 15 ... contactor for driving power supply, 16 ... contactor for commercial power supply, 17 ... contactor for control power supply, 18 ... announcement device, DESCRIPTION OF SYMBOLS 19 ... Rescue operation circuit, 20 ... Charging / discharging circuit, 21 ... Power storage device, 22 ... Group management control device, 23 ... Switching circuit, 31 ... Car position detection part, 32 ... Load signal input part, 33 ... Driving direction determination part, 34 ... speed control unit, 35 ... landing detection unit.

Claims (7)

A power supply circuit that is provided for each of a plurality of units and operates by a commercial power supply during normal times to raise and lower the car;
A power storage device for storing electric power;
A power failure detection means for detecting a power failure of the commercial power supply;
When the power failure detection means detects a power failure, the power stored in the power storage device is supplied to the power circuit of a specific car among the plurality of cars to perform normal operation of the car of the car Operation control means,
When the power outage detection means detects a power outage, the power stored in the power storage device is supplied to the power circuit of a car other than the specific car that is not landing on the car. And a second operation control means for moving the vehicle up and down at a lower speed than during normal operation and landing on the nearest floor. A first contactor which is provided to connect the commercial power supply and each power supply circuit of each unit and is normally short-circuited;
A second contactor that is provided to connect the power storage device and each power supply circuit of each unit and is normally opened;
The first operation control means, when the power failure detection means detects a power failure, opens the first contactor of the specific car and short-circuits the second contactor of the car. Supply the power stored in the power storage device to the power circuit of the specific machine,
The second operation control means opens the first contactor of a car that is not landing on a car other than the specific car when the power failure detecting means detects a power failure. 2. The elevator according to claim 1, wherein the second contactor is short-circuited, and the electric power stored in the power storage device is supplied to a power supply circuit of a car that is not landing on the car. There are multiple units other than the specific unit,
The second operation control means, when the power failure detection means detects a power failure, selects a single car on which a car is not landing other than the specific car, and the selected car of the selected car The first contactor is opened, the second contactor is short-circuited, and after the landing of the car of the corresponding unit, unselected units among the units other than the specific unit are sequentially selected. The elevator according to claim 2.   The elevator according to claim 1, further comprising notification means for notifying guidance information when the power failure detection means detects a power failure. Floor detection means for detecting the floor when the car has landed by the second operation control means;
The elevator according to claim 1, further comprising call registration means for performing call registration of the floor detected by the floor detection means for the specific car. The elevator according to claim 1, wherein the power storage device stores electric power generated during regenerative operation of the car. 5. The elevator according to claim 4, wherein the notification means prompts a transfer from a floor at a landing destination to the specific car in a car of a car that is raised and lowered by the second operation control means. .

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