JP2009137743A - Automatic landing device at power failure time for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To rescue passengers in a car in a short time by increasing speed of the car with the passengers. <P>SOLUTION: This automatic landing device is provided with: the first to third automatic landing devices 21 to 23 for automatically traveling and landing first to third cars 9a to 9c at a power failure time; the first to third load detecting devices 11a to 11c for generating first to third passenger detection signals when the passengers exist by discriminating the presence or absence of the passengers in the first to third cars 9a to 9c; a connecting part 30 for serially connecting a storage battery of the landing device in the car where the first to third passenger detection signals are not generated to a storage battery of the landing device in which the passenger detection signals are generated; and the first to third control panel parts 7a to 7c which correspond to the automatic landing devices having the serially connected storage batteries and travel and land the car by increasing rescue speed of the car as compared with the speed before the serial connection. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an automatic landing device for a power failure of an elevator.

As described in the following patent document, a conventional automatic landing device for a power failure of an elevator is installed in a car at the time of a power failure while installing one set of automatic landing devices during a power failure for a plurality of elevators. There is an emergency power supply circuit that sequentially supplies power from the built-in storage battery of the automatic landing device during power failure to the control panel of each elevator in the order of signal input from the emergency push button during power failure provided in .

According to such an automatic landing device at the time of a power failure, at the time of a power failure, when a power failure occurs in each elevator through an emergency power supply circuit from the built-in storage battery of one set of automatic landing devices at the time of a power failure Power can be sequentially supplied in the order of signal input from the emergency push button, and each vehicle can be automatically moved to the nearest floor sequentially and landed. Therefore, it suffices to install one set of an automatic flooring device with built-in storage battery, and the cost of the automatic flooring device during a power failure can be greatly reduced.

JP 7-252049 A

However, the automatic landing device at the time of a power failure is a system in which a plurality of elevators are sequentially supplied with power from the built-in storage battery of the automatic landing device at the time of a power failure. There was a problem that passengers in the cage were confined for a long time because the elevator could not be operated until it finished driving to the nearest floor.

The present invention has been made to solve the above-described problems. When the vehicle is confined in a car due to a power failure, the battery of the automatic landing device during a power failure without detecting the presence of a passenger in the car is detected. The purpose of the present invention is to provide an automatic landing device at the time of power outage of an elevator that connects the battery to the storage battery of the automatic landing device where the passenger is present and increases the speed of the passenger car and rescues the passenger in the car in a short time .

The automatic landing device for a power failure of the elevator according to the first invention has a plurality of elevators, a storage battery for each of the elevators, and automatically travels and arrives at the car in the event of a power failure. A plurality of automatic landing devices to be floored, passenger detection means for generating a passenger detection signal when a passenger is present by determining the presence or absence of a passenger in the car, and the automatic landing of a car in which the passenger detection signal is not generated Connecting means for connecting the storage battery of the apparatus in series to the storage battery of the automatic landing apparatus for generating the passenger detection signal, and the rescue speed of the car corresponding to the automatic landing apparatus connecting the storage batteries in series Control means for raising the car as compared to before the serial connection and causing the car to land on the floor.

It is preferable that the control means in the automatic landing device at the time of a power failure of the elevator according to the second invention changes the traveling speed of the car according to the series number of storage batteries.
Thereby, the capacity | capacitance of a storage battery can fully be exhibited and this can carry out rescue rescue driving | running | working.

According to the present invention, when confined in a car due to a power outage, the storage battery of the automatic landing device without passengers is connected to the storage battery of the automatic landing device where passengers are located by detecting the presence or absence of passengers in the car. The speed of the passenger car can be increased and the passengers in the car can be rescued in a short time.

Embodiment 1 FIG.
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall view of an elevator showing an embodiment of the present invention, FIG. 2 is an internal connection diagram of a connecting portion shown in FIG. 1, and FIG. 3 is a view showing an opening / closing operation of a normally open contact of the connecting portion according to FIG. is there.
In FIG. 1, the elevator system is composed of three elevators. The elevator uses first to third control panels as control means for AC power supply 3 via first to third change-over switches 5a, 5b and 5c. 7a, 7b and 7c are connected to the respective inputs, and the first to third motors M1, M2 and M3 are driven to the outputs of the first to third control panels 7a, 7b and 7c, respectively. The first to third cars 9a, 9b, 9c are formed to be raised and lowered via a hoisting machine (not shown).
In the first to third cars 9a to 9c, the first to third load detectors 11a as passenger detecting means for generating a passenger detection signal when a passenger is present by determining the presence or absence of a passenger by the load in the car, 11b and 11c.

The b terminals of the first to third changeover switches 5a, 5b, and 5c are connected to the automatic landing device 20 at the time of power failure, and the automatic landing device 20 at the time of power failure includes the first to third landing devices 22a, 22b, The first to third landing devices 22 a to 22 c are connected to the first to third storage batteries 81, 82, and 83 having the voltage V through the connection part 30.

The connection unit 30 is used to appropriately connect the first to third storage batteries 81 to 83 to the first to third landing devices 22a to 22c based on the first to third passenger detection signals. When the three passenger detection signals are not generated, the first to third storage batteries 81 to 83 are not connected to the first to third landing devices 21 to 23, and the first to third passenger detections are performed. When the signal is generated, the first to third storage batteries 81 to 83 are connected to the first to third landing devices 21 to 23, respectively.

When two of the first to third passenger detection signals are generated, the connection unit 30 is connected in series to one of the landing devices generating the storage battery of the landing device that has not been generated. If the voltage is doubled and one of the first to third passenger detection signals is generated, the landing battery generating the storage batteries of the two landing devices that are not generated is generated. It is formed so as to be connected in series to one of the floor devices so that the voltage is tripled.

In FIG. 2, one end of the output of the first landing device 21 is connected to the negative side of the first storage battery 81, and the other end is connected to the first via the first normally open contact 31a and the first series contact 31b. The positive side of the storage battery 81 is connected, one end of the output of the second landing device 22 is connected to the negative side of the second storage battery 82 via the second cathode side contact 32b, and the other end is the second normally open contact 32a, The positive side of the second storage battery 82 is connected via the second series contact 32c, one end of the output of the third landing device 23 is connected to the negative side of the third storage battery 83 via the third cathode side contact 33b, The other end of the third storage battery 83 is connected to the positive side via the third anode side contact 33a.

The connection unit 30 connects the first connecting contact 41 that opens and closes one end of the outputs of the first landing device 21 and the second landing device 22, and outputs the second landing device 22 and the third landing device 23. A second connecting contact 42 for opening and closing one end of each of the first landing device 21 and a third connecting contact 43 for opening and closing the other ends of the outputs of the first landing device 21 and the second landing device 22. The 4th connection contact 44 which opens and closes the other end of the output of the landing device 22 and the 3rd landing device 23 is connected.
The connecting part 30 has a positive side of the first storage battery 81 and a negative side of the second storage battery 82 connected via the first storage battery contact 61, and a positive side of the second storage battery 82 and a negative side of the third storage battery 83. Are connected via the second storage battery contact 62.

The operation of the elevator automatic landing apparatus configured as described above will be described with reference to FIGS. FIG. 4 is a flowchart showing the operation of the control device of FIG.
<When only one passenger detection signal is generated>
When a power failure occurs in the commercial power source 3 (step S101), the connecting unit 30 is connected to the first to third motors M1 to M3 by the first to third control panels 7a to 7c, and a brake (not shown) is restrained. And the first to third cars 9a to 9c are stopped, and the first to third change-over switches 5a, 5b, and 5c are turned on from the a terminal to the b terminal (step S103). The second normally open contacts 31a and 32a, the first series contact 31b, the second cathode side contact 32b, the second series contact 32c, the third cathode side contact 33b, and the third anode side contact 33a are closed to start from the first. The third storage batteries 81 to 83 are connected to the first to third landing devices 21 to 23, respectively, and a passenger detection signal is taken into the connecting unit 30, and the closed contact is opened after the taking in (step S105).

Since the first passenger detection signal is generated, the connection unit 30 closes the first normally open contact 31a, the third and fourth connection contacts 43 and 44, the first and second storage battery contacts 61 and 62, and the first contact detection signal is generated. The third storage batteries 81 to 83 are serially input to the first landing device 21 as a voltage of 3 V (step S107). The connecting unit 30 drives the first motor M1 via the first landing device 21 and the first control panel 7a, and stops by driving the first car 9a to the nearest floor at a rescue speed three times normal. Then, the door is opened (step S109).

<When passenger detection signals are generated in two units>
After executing the above steps S101 to S105, the connection unit 30 generates the first and second passenger detection signals, so the first and second normally open contacts 31a, 32a, the first series contact 31b, the second The cathode side contact 32b, the fourth connection contact 44, and the second storage battery contact 62 are closed to connect the first storage battery 81 to the first landing device 21, and the second and third storage batteries 82 are connected to the second landing device 22. , 83 are serially input to the first landing device 21 as a voltage of 2 V (step S107). The connecting unit 30 drives the first motor M1 via the first landing device 21 and the first control panel 7a, travels the first car 9a to the nearest floor at a normal rescue speed, and stops at the same time. The second car 9b is driven through the second landing device 22 and the second control panel 7b to drive the second car 9b to the nearest floor at twice the normal rescue speed, and the door is opened. Release (step S109).

<When the first to third passenger detection signals are generated>
After executing the above steps S101 to S105, the connection unit 30 generates the first to third passenger detection signals, so the first and second normally open contacts 31a and 32a, the first series contact 31b, the second The cathode side contact 32b, the second series contact 32c, the third anode side, and the cathode side contacts 33a and 33b are closed. The connection unit 30 drives the first to third motors M1 to M3 via the first to third landing devices 21 to 23 and the first to third control panels 7a to 7c, respectively, and at a normal rescue speed. The first to third cars 9a to 9c travel to the nearest floor and stop, and the door is opened (step S109).
In addition, when a passenger detection signal does not generate | occur | produce, the said step S101-S105 are performed and it complete | finishes. This is because it is not necessary to run the first to third cars 9a to 9c.

The elevator floor automatic landing device of the above embodiment has a plurality of elevators, first to third storage batteries 81 to 83 for each of the elevators, and from the first in the event of a power failure. The first to third automatic landing devices 21 to 23 for automatically traveling and landing the third cars 9a to 9c and the presence or absence of passengers in the first to third cars 9a to 9c When present, the passenger detection signal includes a storage battery of the first to third load detectors 11a to 11c that generate the first to third passenger detection signals and the landing device of the car that does not generate the first to third passenger detection signals. The connecting part 30 connected in series to the storage battery of the generated landing device and the rescue speed of the car corresponding to the automatic flooring device connected in series with the storage battery is increased compared to before the serial connection and the car is run to land The first to third control panel sections 7a to 7c It includes those were.
Thereby, when confined in the car due to a power outage, the presence or absence of passengers in the car is detected and the storage battery of the automatic landing device at the time of power failure without passengers is connected to the storage battery of the automatic landing device where passengers exist, Passengers in the car can be rescued in a short time by increasing the speed of the car in which the passenger is present.

In the elevator automatic power landing apparatus of the above embodiment, the control means preferably changes the traveling speed of the car according to the number of storage batteries in series.
As a result, the car can be rescued while fully demonstrating the capacity of the storage battery.

  The present invention can be applied to an automatic landing device at the time of a power failure of an elevator.

1 is an overall view of an elevator showing an embodiment of the present invention. It is an internal connection figure of the connection part shown in FIG. It is a figure which shows the opening / closing operation | movement of the normally open contact of the connection part by FIG. It is a flowchart which shows operation | movement of the automatic landing apparatus at the time of a power failure of FIG.

Explanation of symbols

  7a 1st control panel, 7b 2nd control panel, 7c 3rd control panel, 9a 1st car, 9b 2nd car, 9c 3rd car, 11a 1st load detector, 11b 2nd load detector, 11c 3rd Load detector, 21 first landing device, 21 first landing device, 22 second landing device, 23 third landing device, 30 connection section, 81 first storage battery, 82, second storage battery, 82, second 3 storage batteries.

Claims (2)

A plurality of elevators, a storage battery for each one of the elevators, and a plurality of automatic landing devices for automatically running and landing a car in the event of a power failure;
Passenger detection means for generating a passenger detection signal when there is a passenger by determining the presence or absence of a passenger in the car,
Connecting means for serially connecting the storage battery of the automatic landing device of the car not generating the passenger detection signal to the storage battery of the automatic landing device generating the passenger detection signal;
Control means for increasing the rescue speed of the car corresponding to the automatic flooring device in which the storage batteries are connected in series as compared to before the serial connection and running the car and landing;
An automatic landing system for elevators during a power failure. The control means changes the traveling speed of the car according to the series number of storage batteries.
The elevator control device according to claim 1.

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