JPH1179593A - Emergency rescue operating device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve drastic reduction of the capacity of a high voltage side storage battery, reduction of costs of the storage battery itself, reduction of costs of a battery charger and miniaturization of the battery charger, and to improve reliability of a rescue operating device by reliably performing the rescue operation. SOLUTION: An emergency power source device is constituted by providing a low voltage side storage battery 5 and a high voltage side storage battery 4 for an emergency case and connecting both batteries in series, main circuit current for driving a three phase induction motor 13 is supplied form the low voltage side battery 5 and power is supplied from the low voltage side battery 5 to a DC/DC converter 16 for various power sources for performing rescue operation control, and power for performing brake release control is supplied from the high voltage side battery 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency rescue operation for performing a rescue operation in the event of a power failure or failure of an elevator.

[0002]

2. Description of the Related Art FIG. 10 is a schematic diagram showing a conventional elevator emergency rescue operation apparatus. 10, reference numeral 1 denotes a customer AC power supply, and 4 denotes a high-voltage storage battery (first battery) using a lead storage battery or the like.
Storage batteries), 48 batteries of 12 V rating are usually connected in series.
V voltage is being made. Similarly, reference numeral 5 denotes a low-voltage side storage battery (second storage battery) for generating a voltage of 48V.

[0003] Reference numeral 2 denotes a first high-voltage charger (first charger) for charging the high-voltage storage battery 4, and 3 denotes a low-voltage storage battery 5.
Is a low-voltage side charger (second charger). The storage batteries 4 and 5 are connected in series (series),
A voltage of 6 V is created and used as various voltage sources during rescue operation.

[0004] Reference numeral 13 denotes a three-phase induction motor serving as a drive source for moving an elevator car (not shown) up and down. Reference numeral 12 denotes a rescue operation inverter device 12 for driving the three-phase induction motor 13 during rescue operation. Contactor contacts for main circuit power supply during rescue operation when power is supplied from the storage batteries 4 and 5 to the inverter device 12;
2 is a smoothing capacitor for smoothing the DC voltage of the storage batteries 1 and 2 provided near the storage battery 2.

Reference numeral 9 denotes a brake coil of an electromagnetic brake device (not shown) for restraining the drive of the three-phase induction motor 13;
Is a brake release control contactor contact which is installed in the main control device and is turned on / off by a brake release command (not shown) output from the main control device side and the emergency rescue operation device side; This is a brake current limiting brake resistor installed in

Reference numeral 18 denotes a gate drive power supply for controlling each of the semiconductor power elements (IGBT and the like) in the inverter device 13 controlled during the rescue operation. Reference numeral 15 denotes a gate drive power supply for supplying control power to the gate drive power supply 18. DC / DC converter.

A rescue controller 19 monitors operation during rescue operation and overall control of the inverter control, and outputs an ignition signal for driving the inverter to a gate drive power supply 18. This is a DC / DC converter for supplying a rescue operation control power supply.

Reference numeral 20 denotes an input / output interface device which controls an input / output interface for inputting an external signal from a detector or the like in an elevator hall or a car and outputs the signal to the rescue controller 19;
0 is a DC / DC converter for supplying power to the input / output interface for supplying control power to the power supply.

Reference numeral 22 denotes a power failure detection relay which is demagnetized when the customer AC power supply 1 fails or becomes inoperable due to a failure of the main control unit, and instructs a rescue operation. 1
4 is a DC / DC converter 15 to 1 during rescue operation.
7 is a relay contact for rescue operation control power supply for supplying power to the relay 7.

Here, the general operation of the emergency operation device of FIG. 10 will be described. When a power failure or failure occurs, the power failure detection relay 22 is demagnetized. As a result, the rescue operation main circuit power supply contactor contact 10, the brake power supply contactor contact 6, and the control power supply relay contact 14 are turned on by a control command circuit (not shown), and the rescue operation control circuits 20, 19, The circuits 18 and 12 control each other, and the rescue operation is performed.

[0011]

In the emergency rescue operation apparatus having the above-mentioned structure, the three-phase induction motor 13 is driven as a power supply of the inverter 12 by being supplied from a 96 V DC voltage circuit in which the storage batteries 4 and 5 are connected in series. doing.

Here, 96V is adopted as the power supply of the conventional inverter device 12 for the following three reasons. (1) Rescue at the fastest possible rescue operation speed.

(2) In the rescue operation mode, the three-phase induction motor 13 is operated in the power running mode when the amount of unbalance is maximum.
The DC voltage has enough margin so that rescue operation can be performed normally even if the voltage of the DC voltage rises.

(3) As the rated capacity of the three-phase induction motor 13 increases, the size of the electromagnetic brake device also increases. As a result, the forcing holding current of the brake current increases. .

However, among the above-mentioned reasons, the reason for (1) increasing the rescue operation speed of the item is that the faster the rescue operation, the more the service is improved and the advantage of the customer is obtained. If the passenger is informed that the elevator car is moving and "rescue operation is in progress", the passenger can be relieved for the time being and it is not necessary to extremely increase the rescue operation speed.

The speed at which the rescue operation is performed to the nearest floor due to a failure of the main control device is also performed at a low speed in consideration of safety, but it is not very meaningful to change the rescue operation speed to a higher speed at that time. Absent. In addition, when the emergency rescue operation is performed depending on the magnitude of the earthquake when the earthquake and the power outage overlap, when the rescue operation mode is set to the rescue operation mode because the rescue operation speed may be dangerous rather than fast Considering that the elevator system is operated at the time of abnormality, it is desirable that the speed is not too fast.

Therefore, it is better to set the rescue operation speed of the emergency rescue operation device to be equal to the rescue operation speed of the main control device when the main control device fails. From the above, 10 m / min to 15 m / min is appropriate as the emergency rescue operation speed.

If the rated voltage is 380 V at a rated speed of 210 m / min as the induced voltage of the three-phase induction motor 13 at this time, V ₁ = (10/210) × 380 = 18 Vms (= 25.
5Vop), 15 m / min, V ₂ = (15/210) × 380 =
27 Vms (= 38 Vop), and in each case, the three-phase induction motor 13 can be driven only by the storage battery 5 because the voltage is as low as 53% to 80% of the 480 V voltage of the storage battery 2.

(2) Among the above-mentioned reasons, the variation in the induced voltage of the three-phase induction motor 13 in the powering mode in the two items can be reduced by 110% in general if the inverter control by the vector control is performed. It can be suppressed within the extent.

Even when the full load increasing operation is performed at the rescue operation speed of 15 m / min, the induced voltage V _{3 of the} three-phase induction motor 13 is increased.
Is V ₃ = (15/210) × 380 × 1.1 = 30.0V
ms = 42Vop, and the rescue operation can be performed even with the DC voltage of 480V.

In the actual emergency rescue operation, the storage batteries 4, 5
In order to suppress the decrease in capacity of the three-phase induction motor 13 in order to operate in the regenerative operation mode, the induced voltage of the three-phase induction motor 13 is further lower than the induced voltage in the power running operation mode. The speed is limited to a door zone in which rescue can be performed by opening the door, and the speed at this time is set to about 1/5 of the rescue operation speed in consideration of the landing level, so that the induced voltage of the three-phase induction motor 13 is 10 Vop or less. That is, there is a sufficient margin at a DC voltage of 48 V.

Among the above-mentioned reasons, the capacity of the storage batteries 4 and 5 corresponding to the capacity of each electromagnetic brake device is required for (3) the braking current forcing and the increase of the holding current. If this power supply is to be realized by the DC / DC converters 15, 16, 17 and the like in FIG. 10, if the forcing current increases, the capacity of the DC / DC converter also increases, resulting in an increase in cost and the capacity of the electromagnetic brake. DC / DC converters 15-17
When the capacity of the converter is changed, the number of converters increases and the productivity deteriorates, which is uneconomical. DC / DC converter 15
To 17 can be connected in parallel (in parallel), but there is a possibility that the load may be concentrated on one side due to the difference in the output impedance of each converter 15 to 17, and the DC / DC converter output due to overcurrent may occur. It can also be accompanied by shutdowns or converter breaks, the para-connection is not effective and one unit must cover the full load. Therefore, when a large capacity is required as the brake power source, it is more economical to take the load with the storage batteries 4 and 5.

As described above, a voltage of 48 V is required as a power source for the inverter device 12 and a voltage of 96 V is required as a brake power source. However, since a 96 V power source is conventionally produced by a storage battery, the inverter device 12 also takes a load from the 96 V power source. Was.

Next, the capacity of the storage batteries 4 and 5 will be described. The capacity of the storage batteries 4 and 5 is determined by the discharge current and the discharge time of the storage batteries. The pattern of the discharge current during the rescue operation is represented as shown in FIG. 11 (a). The acceleration / deceleration times t ₁ and t ₃ are t ₁ = t ₃ , and the time is as short as 0.5 seconds or less, so
₁ and I ₃ are equivalently regarded as I _2, and FIG.
It is assumed that the I ₂ current flows uniformly for t ₁ + t ₂ + t ₃ seconds as shown in FIG. Although the rescue operation is described as the operation in the regenerative direction before as the I ₂ current, a power running operation may be performed due to a load contact (not shown) abnormality or the like. Stipulate.

As a method of selecting the storage battery capacity, the method of calculating the capacity of a stationary storage battery SBA600 of the Japan Storage Battery Industry Association standard
Although there are various calculation methods according to the discharge current pattern in "1", a case where the discharge current decreases with time is employed in the rescue operation. The calculation formula is as follows, taking the pattern of FIG. 11A as an example.

C _A = (1 / L) K ₁ I ₁ ... C _B = (1 / L) [K ₂ I ₁ + K ₃ (I ₂ −I ₁ )]... C _C = (1 / L) [K _{4 I 1 + K 3 - (} I 2 -I 1) + K 6 (I 3 -I 2)] ... C A, C B, C C: rated discharge rate conversion at 25 ° C. capacity L: maintenance rate (usually 0.8 to) K _1: capacitance conversion factor in _{t 1 K 2: t 1 +} t 2 in volume conversion factor K _3: equivalent oxide in t ₂ coefficient _{K 4: t 1 + t 2} + capacity at t ₃ conversion factor K _5: t ₂ + T ₃ capacity conversion coefficient K ₆ : capacity conversion coefficient at t ₃ K _{1 to} K ₆ are capacity conversion coefficients determined by the characteristics of the storage batteries 4 and 5, and show the characteristics as shown in FIG. battery capacity _{C a} ~C C conversion factor is increased becomes larger. In addition, the storage battery capacities C _A , C _B ,
Determine with the largest value of C _C.

Since the discharge current pattern at the time of the rescue operation is represented by FIG. 11B as described above, the capacity of the storage batteries 4 and 5 at this time is calculated by using the following equation. Can be calculated.

C ₁ = (1 / L) K ₇ I ₂ ... K ₇ = t ₁ + t ₂ + t ₃ Capacity Conversion Coefficient at T _{3 From} the above equation, the storage battery capacity is uniquely determined by the discharge time and the magnitude of the discharge current I _2. it can. The discharge current I ₂ is the capacity of the three-phase induction motor 13 to substantially coincide with the rated current determined by the capacity of the three-phase induction motor increases battery capacity is also increased. On the other hand, the brake current at the time of the brake suction is as shown in FIG. 11C, and is controlled by the forcing current I ₄ for the time t ₄ (about 0.5 seconds) and the holding current I ₅ for the time t ₅ . The time t ₄ and t ₅ of the brake current is t ₄ << t
_{Since the} holding current time is almost as long as ₅ , the storage battery capacity required for the brake release control can be calculated as follows using an equation.

C ₂ = (1 / L) K ₈ I ₄ C ₃ = (1 / L) [K ₉ I ₄ + K ₁₀ (I ₅ −I ₄ )] K ₈ : Capacity conversion coefficient at t ₄ K ₉ : Capacitance conversion coefficient at t ₄ + t ₅ K ₁₀ : Capacity conversion coefficient at t ₅ (t ₄ + t ₅ ３０t ₅ ) For example, 30; rated current 70 of kW three-phase induction motor
A, rescue operation time t ₁ + t ₂ + t ₃ · K ₇ = 0.8, brake forcing current 7A, holding current 3.5A, t ₄
The storage battery capacity when K ₈ = 0.3 and K ₇ ≒ K ₉ ≒ K ₁₀ is as follows.

C ₁ = (1 / 0.8) 0.8 × 70 = 70.0 AH ｛C ₂ = (1 / 0.8) 0.3 × 7 = 2.6 AH C ₃ = (1/0. 8) [0.8 × 7 + 0.8 (3.5-7)] = 3.5 AH｝ Accordingly, C ₃ = 35 as the storage battery capacity when the brake is released.
AH is adopted, but (3.5 / 70) × 1 for a discharge capacity C ₁ = 70 AH for driving by the three-phase induction motor 13.
Only a capacity of about 00 = 5.0% is required.

[0031]

As described above, since the capacity of the storage battery 4 on the high voltage side is only required for the brake capacity, the power of the inverter device 12 is supplied from the high voltage side. emergency capacity of the storage battery 4 also apply the battery of the same volume as the low-voltage side battery 5 (the C ₁ capacitor = 70 Ah), and the use of fairly generous end as the storage battery, with has led to cost The rescue driving device was also large. When the capacity of the three-phase induction motor 13 is further increased or the rescue operation time is prolonged, the capacity difference between the storage batteries 4 and 5 is further increased, which leads to excess facilities of the storage batteries 4 and 5.

The present invention has been made in order to eliminate the above-mentioned problems. The low-voltage side storage battery has a capacity capable of powering the three-phase induction motor based on the conventional capacity calculation, and a DC / D power supply.
The storage battery capacity is selected based on the sum of the capacity that can control the C converter and the capacity that can perform the brake release control. For the high-voltage storage battery, select the storage battery capacity with the capacity that allows the brake release control to reduce the high-voltage storage battery capacity. By using the charger output as a high-voltage power supply during rescue operation, the high-voltage storage battery is eliminated, reducing the cost and weight of the device.
It aims at miniaturization.

[0033]

According to a first aspect of the present invention, there is provided a main controller for controlling a three-phase induction motor by inverter driving by opening and closing a brake of an elevator car hoist. In emergency rescue operation equipment that starts when control is stopped due to power failure or failure,
An inverter device in a rescue operation device for driving and controlling the three-phase induction motor; a drive control device for driving and controlling the inverter device; and a first DC for supplying power to the device.
/ DC converter, a rescue controller for monitoring operation during rescue operation and overall control of the inverter drive, a second DC / DC converter for supplying power to the rescue controller, and input of an external signal and the rescue controller. An interface device that performs output, a third DC / DC converter that supplies power to the device, a large-capacity low-voltage storage battery that supplies power to the inverter device and the first to third DC / DC converters, A low-voltage storage battery connected in series to the low-voltage storage battery, and a small-capacity high-voltage storage battery having a capacity equal to or less than の of the large-capacity low-voltage storage battery; and two chargers for individually charging the two types of storage batteries. When the emergency rescue operation device is activated, the large-capacity low-voltage storage battery
The power is supplied to the inverter device and the first to third DC / DC converters, and the small-capacity high-voltage storage battery further connected in series to the large-capacity high-voltage storage battery performs the brake opening / closing control and the same voltage. An emergency rescue operation device for an elevator that supplies power to a sequence control device that performs control.

According to the first aspect of the present invention, a large-capacity low-voltage storage battery is supplied as power for the main circuit and various DC / DC converters. Power supply capacity is required, and the high-voltage storage battery is 1 /
Those having a small capacity of 2 or less can be used.

In order to achieve the above object, the invention according to claim 2 is characterized in that an intermediate tap is provided in the large-capacity low-voltage storage battery to supply power to the interface device.
The emergency rescue operation device for an elevator according to claim 1, wherein power is directly supplied to said interface device from said intermediate tap instead of said DC / DC converter.

According to the second aspect of the present invention, a 24V voltage is taken out from an intermediate tap provided in a large-capacity low-voltage storage battery, and the 24V voltage is supplied to an input / output interface circuit used for emergency rescue operation. By supplying the DC / DC converter, the 24 V unit constituted by the DC / DC converter which has been conventionally required can be omitted.

According to a third aspect of the present invention, there is provided a power failure detector for detecting a power failure or failure, a first battery voltage detector for detecting a voltage of the high-voltage storage battery, and the storage battery. A first storage battery charge control relay that is excited when the voltage detector detects that the voltage is equal to or higher than a set voltage, a second storage battery voltage detector that detects the voltage of the low-voltage storage battery, and the storage battery voltage detector A second storage battery charging control relay that is excited when detecting that the voltage is equal to or higher than a set voltage; a first storage battery charging relay that performs charging when the voltage of the high-voltage storage battery decreases; A second storage battery charging relay for charging when the voltage of the side storage battery decreases, and a shared charger for alternately charging the low-voltage storage battery and the high-voltage storage battery, wherein the customer power supply is normal when the customer power supply is normal. No. When battery voltage detector detects a voltage drop, and excited the second battery charging relay,
After charging the low-voltage storage battery, the low-voltage storage battery is fully charged, and after the second storage battery voltage detector detects full charge, the first storage battery voltage detector detects a voltage drop. Then, the first storage battery charging relay is excited to charge the high-voltage storage battery, the high-voltage storage battery is fully charged, and when the first storage battery voltage detector detects full charge, The emergency rescue operation device for an elevator according to claim 1, wherein charging of the low-voltage storage battery and the high-voltage storage battery is stopped.

According to the third aspect of the present invention, the configuration is such that the voltages of the low-voltage storage battery and the high-voltage storage battery are individually detected, and the charging circuit is switched only when the voltage drops, so that one battery Can be shared by two chargers, so that the number of chargers is one
Can be deleted.

In order to achieve the above object, an invention according to claim 4 is characterized in that the first and second storage battery voltage detectors include:
Both have an on-off delay timer that operates when detecting the full charge of the low-voltage storage battery and the high-voltage storage battery.After the low-voltage storage battery and the high-voltage storage battery are fully charged, the on-off delay timer is activated. In the on-delay mode, the low-voltage storage battery is charged with a constant voltage during the on-delay period. After the on-delay time, the timer is set in the off-delay mode, and the high-voltage storage battery is charged with the constant voltage in the off-delay period. 4. The emergency rescue operation device for an elevator according to claim 3, wherein the low voltage side storage battery and the high voltage side storage battery are constantly charged at a constant voltage and a constant current by repeating the above.

According to the invention corresponding to claim 4, since the low-voltage storage battery and the high-voltage storage battery can be equally charged after being charged, a voltage drop due to self-discharge of both storage batteries can be prevented beforehand, and the storage battery can always be charged. The fully charged state can be maintained, the rescue operation cannot be disabled due to the voltage drop, and the reliability of the rescue operation can be improved.

According to a fifth aspect of the present invention, there is provided an electromagnetic brake device for releasing the restraint of the three-phase induction motor, a brake coil for releasing the brake, and detecting that the brake is actually released. A brake release confirmation limit switch to perform, a brake release confirmation relay that is demagnetized when the limit switch detects release, and a contact for rescue operation brake power supply for supplying a forcing current for releasing the brake at the start of rescue operation. And a contactor for releasing the brake and supplying a brake holding current after the brake release confirming relay is demagnetized, and a power supply after brake release, and a high voltage side storage battery when switching from the forcing current to the holding current. It has a block diode to prevent current from flowing into the low-voltage storage battery, As a power source, when releasing the brake at the start, the rescue operation brake power supply contactor is excited to supply a forcing current, the brake is released, and when the brake release confirmation relay is demagnetized, the forcing is performed. The emergency rescue operation device for an elevator according to any one of claims 1 to 3, wherein the contactor for the elevator is demagnetized to excite the power supply contactor after the brake is released so that a holding current flows.

According to the fifth aspect of the present invention, the brake power is supplied from the high-voltage storage battery only when the forcing current is applied when the brake is released, and after the brake release is detected, the brake power is supplied from the low-voltage storage battery 5. By supplying the battery, the high-voltage storage battery 4 does not need a capacity for flowing the brake holding current, and the storage battery capacity can be further reduced.

According to a sixth aspect of the present invention, there is provided a step-down transformer for lowering the customer AC power supply to a voltage equivalent to the voltage of the low-voltage storage battery, and a voltage of the high-voltage storage battery. A first storage battery voltage detector to be detected, a first storage battery charge control relay that is excited when the detector detects that the voltage is equal to or higher than a set voltage, and a voltage drop due to insufficient charging or abnormality of the high-voltage storage battery. A first storage battery abnormality rescue operation preparation relay that is excited when a power failure or failure occurs during the operation, and when the voltage of the high-voltage storage battery is low, the emergency rescue operation mode is set. In this case, by charging the first storage battery abnormality rescue operation preparation relay, the circuit of the high-voltage storage battery is disconnected, and the high-voltage storage battery is charged from the low-voltage storage battery. 3. An elevator emergency stop according to claim 1, wherein power is supplied to an input of the elevator, and the charger is operated to create a high-voltage side power supply to supply as a brake power supply. When rescue driving device.

According to the invention, when the voltage of the high-voltage storage battery drops, the charger is operated and its output is used as the high-voltage power supply, thereby reducing the voltage of the high-voltage storage battery. Can prevent rescue operation failure and improve service.

According to a seventh aspect of the present invention, there is provided a rescue operation charger operation command relay which is energized when the power failure detection relay detects a power failure or failure and is demagnetized, Or, a high-voltage smoothing capacitor for smoothing and charging the output power of the charger in the event of a failure, a current limiting resistor for suppressing an inrush current during charging of the smoothing capacitor, and a rescue operation charger which is excited by a voltage near the completion of smoothing capacitor charging. A power supply relay, and when a power failure or failure occurs, the charger operation command relay during rescue operation is energized to receive the supply of power from the low-voltage storage battery, and the charger operates to operate the high-voltage side voltage. The emergency rescue operation device for an elevator according to claim 3 or 6, wherein brake power is supplied.

According to the present invention, when the smoothing capacitor is fully charged from the output of the charger supplied with power from the low-voltage storage battery during rescue operation, the brake power is supplied from the high-voltage circuit. By supplying, during braking forcing control, the forcing current is supplied from the parallel output of the charger output and the smoothing capacitor, and the brake holding current is supplied from the charger output, so the high-voltage storage battery is deleted. can do.

To achieve the above object, the invention according to claim 8 is a first storage battery charge command relay which is excited when the first storage battery voltage detector detects a voltage drop; When the first storage battery charge command relay is energized, during a power failure rescue operation to be demagnetized, a storage battery series connection relay is provided, and when a voltage drop of the high voltage storage battery is detected at the time of power failure or failure, the first The storage battery charge command relay is excited, and the high-voltage storage battery and the second storage battery charging relay are also excited together, so that charging of the high-voltage storage battery from the low-voltage storage battery is started. 4. The brake power source is supplied after the voltage of the high-voltage storage battery is increased.
Or an emergency rescue operation device for an elevator according to claim 4.

According to the invention corresponding to claim 8, when a power failure occurs when the voltage of the high-voltage storage battery is low, the brake cannot be suctioned and rescue operation may not be performed, but when the low-voltage storage battery is fully charged. By charging the high-voltage storage battery from the low-voltage storage battery and performing the brake release control after the high-voltage storage battery is fully charged, the rescue possibility can be increased.

[0049]

BEST MODE FOR CARRYING OUT THE INVENTION

<First Embodiment (Corresponding to Claim 1)> The components in FIG. 1 have exactly the same operations as the configuration described in FIG. 10 of the prior art. In FIG. 1, the DC power of the inverter device 12 that drives the three-phase induction motor 13 is changed from being conventionally supplied from the high-voltage storage battery 4 to being supplied from the low-voltage storage battery 5. I have.

More specifically, it has a 48V emergency storage battery 4 constituting a low-voltage power supply such as a lead storage battery, and a 48V emergency storage battery 5 constituting a high-voltage power supply. The side storage batteries 4 are connected in series (series) and 96
The emergency rescue operation device of the elevator constituting the emergency power supply device of V is premised.

The three-phase induction motor 13 is supplied from the low-voltage storage battery 5.
DC / DC converters 15, 16 for generating a main circuit power supply for driving the power supply and various power supplies for performing rescue operation control.
17, and a power supply for performing the brake release control is supplied from the high-voltage storage battery 4.

As a result, the capacity of the low-voltage side storage battery 5 is the same as the conventional power supply capacity for driving the three-phase induction motor 13 and the DC / DC converter 1 constituting the control power supply during rescue operation.
It is possible to select a large-capacity storage battery that makes up for the power supply capacity of 5, 16 and 17 and the brake release control power supply capacity, and to select a small-capacity storage battery that makes up only the brake release control power supply capacity for the high-voltage side storage battery 4. it can.

As described above, for example, in the case of a 40 kW motor, the difference in capacity is 5% higher on the high voltage side than on the low voltage side.
It is possible to make up for it with about the capacity. According to the first embodiment described above, the following operational effects can be obtained. That is, the main circuit power supply and the DC / D
By supplying power to the C converters 15 to 17, the high-voltage storage battery 4 only needs a power supply capacity for brake release control. Therefore, the low-voltage storage battery 5 needs to have a large capacity. The capacity of the high-voltage storage battery 4 can be a small-capacity storage battery that is １ ／ or less of the capacity of the low-voltage storage battery 5.

<Second Embodiment (Corresponding to Claim 2)> FIG. 2 is different from FIG. 1 in that an intermediate tap is provided in the large-capacity low-voltage storage battery 5 of the circuit in FIG. And a circuit for connecting a 24V power supply for controlling the rescue operation by the emergency rescue operation device from the 24V voltage is added.

Specifically, the normally open contact 21 of the input / output interface power supply relay (not shown) is connected between the intermediate tap of the storage battery 5 and the interface device. Also, the input / output interface power supply DC / DC converter 17 provided in FIG. 1 is omitted.

The operation of the embodiment configured as described above is as follows. That is, when a power outage or failure occurs,
Contacts 6,10,1 for supplying various control power during rescue operation
4 and the normally opened contact 21 added this time are also closed together. When the normally open contact 21 is closed, the input / output interface device 2
0 is supplied with power, and rescue operation control is started.

With the configuration shown in FIG. 2, the input / output interface power supply DC / DC
Since the DC converter 17 can be omitted, downsizing and cost reduction can be realized.

<Third Embodiment (corresponding to claim 3)> FIG. 3 (a) is a schematic configuration diagram of a rescue operation device, and FIG. 3 (b) shows a relay sequence for controlling FIG. 3 (a). FIG.
In (a) and (b), reference numeral 23 designates the high voltage side storage battery 4 as the charger 2
Is a first storage battery charging relay that controls charging by
23a is the normally open contact and 23b is the normally closed contact.

Reference numeral 24 denotes a second storage battery charging relay for controlling charging of the low-voltage storage battery 5 by the charger 2;
Is a normally open contact, and 24b is a normally closed contact. A first storage battery voltage detector 25 detects the voltage of the high-voltage storage battery 4 and outputs an ON signal when the battery is fully charged, and 26 detects a voltage of the low-voltage storage battery 5 and turns on when the battery is fully charged. It is a second storage battery voltage detector that outputs a signal.

Reference numeral 27 denotes a first storage battery charging control relay which is excited when the storage battery voltage detector 25 outputs an ON signal, and 27b is a normally closed contact. 28 is a second magnetized when the battery voltage detector 26 outputs an ON signal.
, A normally open contact 28a and a normally closed contact 28b.

Next, the operation of FIG. 3 will be described. When the customer's AC power supply 1 is normal (when the relay 22 is energized), the voltages of the high-voltage storage battery 4 and the low-voltage storage battery 5 are monitored by the voltage detectors 25 and 27, and both are now monitored. It is assumed that the storage batteries 4 and 5 have both detected that the voltage has dropped.

At this time, according to FIG.
Are both demagnetized. In this state, the normally open contact 28a is inserted in the relay 23 so that it is not excited. However, since the relay 24 has only the normally closed contact 28b, the storage battery charging relay 24 is first excited and the normally open contact 28a is opened. 24a is closed to charge the low-voltage storage battery 5. At this time, since the customer AC power supply 1 is normal and the relay 22 is energized, the normally closed contact 22k is opened, and the circuits of the storage batteries 4 and 5 are disconnected.

This is because when the voltage of the low-voltage storage battery 5 increases with time and becomes fully charged, the voltage detector 2
6 outputs an ON signal, and when the relay 28 is excited, the relay 24 is demagnetized. Conversely, the relay 23 is excited, the normally open contact 23a is closed, and the high-voltage storage battery 4 is charged. When the storage batteries 4 and 5 are fully charged, the charging is terminated.

After a certain time has passed since the end of the charging, the voltage drops again due to the self-discharge of the storage batteries 4 and 5, or the voltage detectors 25 and 26 which detect the voltage drop are charged sequentially. As can be seen from the excitation condition of the relay 23, the relay 28 is excited. That is, only when the low-voltage storage battery 5 is fully charged, the high-voltage storage battery 4 is charged, and as a charging condition, the low-voltage storage battery 5 is preferentially charged.

According to the present embodiment, both the storage batteries 4 and 5 can be charged alternately only by the charger 2.
Can be reduced to only one, further lower cost,
The size can be reduced.

<Fourth Embodiment (Corresponding to Claim 4)> FIG. 4A shows a relay sequence for performing charge control.
(B) shows a charging timing chart of the equal charging after the storage batteries 4 and 5 are fully charged.

In FIG. 4A, P and N are control buses,
27c is a normally open contact of the battery charge control relay 27,
Reference numeral 28c denotes a normally open contact of the battery charge control relay 28. Reference numeral 29 denotes an on / off delay timer which operates after the storage batteries 4 and 5 are fully charged and performs time setting for equal charging.
a is the normally open contact, 29b and 29c are the normally closed contacts.

In this case, the configuration of the rescue operation device itself is shown in FIG.
Since the configuration is the same as that shown in FIG. Next, the operation of FIGS. 4A and 4B will be described. The charging operation when the voltage of the storage battery 4 or 5 is low is omitted because it is the same as that in FIG. 3, and the operation of equal charging after both the storage batteries 4 and 5 detect the full charge will be described. When both the storage batteries 4 and 5 are fully charged, the relays 27 and 28 are both excited, and the normally open contacts 27c and 28c are closed. As a result, power is supplied to the ON / OFF delay timer 29 to start the ON / delay timer operation, and since the normally closed contact 29b remains closed until counting up, the relay 24 is energized again and the storage battery 5 is restarted. Charge.

When the timer 29 counts up on delay, the timer is turned on, the normally open contact 29a is closed and the normally closed contact 29b is opened, so that the storage battery 4 is recharged.

On the other hand, since the normally closed contact 29c is also opened,
Although the power supply of the timer 29 is extinguished, the storage battery 4 continues to be charged until the off-delay operation of the timer 29 is counted up by the off-delay operation. This can be continued while the customer AC power supply 1 is normal, so that the storage batteries 4 and 5 can be equally charged. FIG. 4B shows the charging timing.

According to this embodiment, since the storage batteries 4 and 5 can be equally charged after being fully charged, the storage batteries 4 and 5 can be charged.
, The voltage drop due to self-discharge can be prevented beforehand, the full charge state can be always maintained, the rescue operation cannot be disabled due to the voltage drop, and the reliability of the rescue operation can be improved.

<Fifth Embodiment (Corresponding to Claim 5)> FIG. 5A is a schematic configuration of a rescue operation device, particularly showing only a brake power supply circuit, and FIG. 2 shows a relay sequence for controlling the configuration of the first embodiment. In FIG. 5, P and N are control buses, 30 is a limit switch for confirming brake release included in the electromagnetic brake device, and 33 is a limit switch 3
0 is a brake release confirmation relay that is energized when on (brake release) and demagnetized when off (brake release).
3a is the normally open contact, and 33b is the normally closed contact.

Reference numeral 34b denotes a normally closed contact of a not-shown inspection mode confirmation relay (excited in the inspection mode), and reference numeral 35a denotes a normally opened contact of a not-shown power receiving breaker mode confirmation relay (excited when the power receiving breaker is turned on). Reference numeral 36 denotes a rescue operation brake power supply contactor which is excited when a forcing current is applied during brake suction, and 6 denotes a contact thereof. Reference numeral 37 denotes a contactor for supplying power after the brake is released, which is excited when the brake release confirmation relay 33 is excited, and 31 is a contact point thereof.

Reference numeral 32 denotes a block diode for preventing a current from flowing to the negative polarity of the high-voltage storage battery 4 from the brake circuit when the contacts 6 and 31 are switched. Reference numeral 38 denotes a contacting contact for controlling a forcing brake which is closed when a forcing current of the brake provided in the main control device is supplied.

Next, the operation of FIG. 5 will be described. When the brake before the rescue operation is released, the limit switch 30 is on, so that the relay 33 is excited, the normally open contact 33a is closed, and the normally closed contact 33b is open. At this time, when the power failure detection relay 22 detects the power failure, the normally closed contact 22b is closed. In addition, when it is confirmed that the rescue operation is not in the inspection operation mode and that the power receiving breaker is in the ON state, The switch 36 is excited, and the contact 6 is first closed.

When the contacts 7 and 38 in the main control unit are closed by the brake release control, a brake forcing current flows and the brake is released. When the brake is released, the limit switch 30 is turned off, the relay 33 is demagnetized, the contactor 36 is demagnetized, the contactor 37 is excited, and the contact 31 is closed. Supply.

According to the present embodiment, the high-voltage storage battery 4
The brake forcing supplies only the current and the brake holding current is supplied from the low-voltage storage battery 5, so that the capacity of the high-voltage storage battery 4 can be further reduced.

As described in the section of the prior art, the capacity reduction rate is C ₂ when only the forcing current is supplied.
= 2.6 AH = 2.6 A / 3.5 × 100 = for a capacitance C ₃ = 3.5 AH when a holding current is also supplied.
A capacity of 74% can be selected, and the cost of the storage battery 4 can be reduced and the size can be reduced by further reducing the capacity of the storage battery 4.

<Sixth Embodiment (Corresponding to Claim 6)> FIG. 6A shows a schematic configuration of a rescue operation device, and FIG. 6B shows a relay sequence for controlling the above configuration. In FIG.
P and N are control buses, and 22c to 22f are power failure detection relays 2.
2 is a normally open contact. 27d is a normally closed contact of the storage battery 1 charge control relay 27. Reference numeral 39 indicates that the storage battery 1 is regarded as abnormal when the voltage of the high-voltage storage battery 1 is low, is disconnected from the brake circuit, and supplies power from the low-voltage storage battery 2 to the charger input side. The relays 39a and 39b are normally open contacts, and 39c is a normally closed contact. Reference numeral 40 denotes a step-down insulating transformer that steps down the voltage on the input side of the charger so that the voltage becomes the same as the voltage of the storage battery 2. 41, 4
Reference numerals 2 and 43 denote internal components of the charger 1. Reference numeral 41 denotes a rectifier for rectifying an AC power source stepped down by a step-down transformer, reference numeral 42 denotes a smoothing capacitor for smoothing the output of the rectifier 41, reference numeral 43 denotes a switching element, and DC / DC including an insulating transformer. It is a DC converter. The storage battery 1 is charged from the output of 43. 44
Are the load devices shown in FIG. 1 (the three-phase induction machine 13, the inverter device 12, the brake coil 9, the DC / DC converters 15, 16, 17 and the control device 18 for controlling during rescue operation,
19, 20) are described together. Next, the operation of FIG. 6 will be described. When it is detected that the voltage of the high-voltage storage battery 1 has dropped when the power failure detection relay is demagnetized and a power failure occurs, the normally closed contact 27d and the normally closed contact 22g are closed, and the 39 relays are excited. Is done. This gives 39a,
The normally open contact 39b is closed, power is supplied from the low-voltage storage battery 2 to the input side of the charger 1, and a power failure occurs. The battery is charged, and a charger output is generated from the output of 43.

On the other hand, since the normally closed contact 39c is opened, the storage battery 1 is disconnected from the load circuit, and only the charging output becomes the power supply on the high voltage side. The brake current when the brake is released is supplied from the output of the charger to perform the brake release control. According to the present embodiment, even when the voltage of the storage battery 1 is low and the brake cannot be released, the rescue operation can be performed by creating a high-voltage power source from the charger 1 and using the power source as the brake power source, thereby improving the reliability of the rescue operation. Performance can be improved.

<Seventh Embodiment (Corresponding to Claim 7)> FIG. 7A shows a schematic configuration of a rescue operation device, and FIG. 7B shows a relay sequence for controlling the above configuration. In FIG.
P and N are control buses, 45 is a rechargeable battery operation command relay during rescue operation that is excited when the power failure detection relay 22 is demagnetized and a power failure occurs, and 45a to 45d are normally open contacts. Reference numeral 49 denotes a smoothing capacitor for smoothing the output of the charger 2 when the charger 2 operates during a power failure. Reference numerals 47 and 48 denote limiting resistors for suppressing an inrush current when charging the smoothing capacitor 49.

Reference numeral 46 denotes a rechargeer power supply relay for rescue operation which is turned on when the smoothing capacitor 49 is charged and becomes almost fully charged (about 80%).
46b is the normally open contact. 22h and 22i are normally open contacts of the power failure detector 22, and 22j is its normally closed contact.

Next, the operation of FIG. 7 will be described. When the customer AC power supply 1 is normal, the power failure detection relay 22 is energized, so that the normally open contacts 22h and 22i are closed, and the charger output always charges the low-voltage storage battery 5. When the customer's AC power supply 1 loses power, the relay 22 is demagnetized, and the relay 45 is excited.

As a result, the normally open contacts 22h and 22i are opened, and the charging circuit of the low-voltage storage battery 5 is disconnected. or,
When the normally open contacts 45d and 45c are closed, the low-voltage storage battery 5 is connected to the input of the charger 1 and power is supplied. The charger 2 starts operation by receiving power supply from the low-voltage storage battery 5 and outputs a charging voltage. At the same time, the normally open contacts 45a and 45b are closed together, so that when the output voltage is output from the charger 2, the smoothing capacitor 49 is charged through the limiting resistors 47 and 48.

When the voltage of the smoothing capacitor 49 increases and becomes equal to or higher than the operating voltage of the relay 46, the relay 46 is turned on, the normally open contacts 46a and 46b are closed, and the preparation of the high-voltage side power supply circuit is completed. When the rescue operation is actually started and the brake forcing current is supplied, the brake release control is performed by supplying the brake current from the two-system para power supply of the charged smoothing capacitor 49 and the charger 2.
After opening, it is supplied from the charger power supply.

According to the present embodiment, the elimination of one charger by sharing the charger 2, the elimination of the high-voltage storage battery and the use of the smoothing capacitor 4 by using the output of the charger 2 as the high-voltage power supply. By performing brake forcing control with added charging energy, it is possible to reduce the charger output current (reduce the charger capacity), and to further reduce the cost and size of the charger and the storage battery.

<Eighth Embodiment (Corresponding to Claim 8)> FIG. 8A shows a schematic configuration of a rescue operation device, and FIG.
Shows a relay sequence for controlling FIG. FIG.
In the figures, P and N are control buses, 22l is a normally closed contact of the power failure detection relay 22, 22m is a normally closed contact, 27d is a normally closed contact of the first storage battery charging control relay 27, and 28d is a second storage battery charging control. This is a normally closed contact of the relay 28. Reference numeral 50 denotes a storage battery charging command relay which is excited when the voltage of the high-voltage storage battery 4 decreases and the voltage of the low-voltage storage battery 5 is fully charged, and 50a is a normally open contact. Reference numeral 51 is a relay for connecting the storage battery series at the time of power failure rescue operation which is excited when the relay 50 and the relay 22 are not excited, and 51a is a normally open contact. Reference numeral 52 denotes a block diode for preventing the voltage of the storage battery 4 or 5 from decreasing and the relay 50 from being excited when the relay 23 or 24 is excited.

Next, the operation of FIG. 8 will be described. Regarding the operation of charging when the storage battery 4 or 5 is not fully charged,
This is as described in the above embodiment. However, if a power failure occurs while the storage battery 4 is being charged and the battery is not yet fully charged, the brake power supply voltage is insufficient and brake release control cannot be performed.

Therefore, when the storage battery 5 is fully charged when the power failure occurs but the voltage of the storage battery 4 is low, the normally closed contact 2
When 21 is opened and the normally closed contacts 27d and 28d are closed, the relay 50 is excited, the normally open contact 50a is closed, and the relay 51 is excited. As a result, the normally closed contact 51b is opened, and the circuits of the storage batteries 4 and 5 are separated.

When the relay 50 is excited, the relays 23 and 24 are also excited together.
When the battery 24a is closed, the storage battery 4
Is charged. Thereafter, after the voltage of the storage battery 4 is detected to be fully charged, brake release control is performed to start rescue operation.

When the customer AC power supply 1 is normal, the normally closed contact 22m is opened, so that the normally closed contact 51b is always opened and individual charging is performed. According to the present embodiment, even if a power failure occurs in a state where the storage battery 4 is not fully charged and the brake release control cannot be performed and the output of the charger of the storage battery 4 is lost, the storage battery 5 is charged and the storage battery 4 is fully charged. Thereby, the reliability of the rescue operation device can be greatly improved.

[0092]

According to the emergency rescue operation system for an elevator of the present invention, the power supply for driving the three-phase induction motor is supplied from the low-voltage storage battery, and the power is supplied from the high-voltage storage battery only for the brake release control. With this configuration, the capacity of the high-voltage storage battery can be significantly reduced, the charger can be used for both the low-voltage and high-voltage storage batteries, and the low-voltage storage battery can be connected to the charger. To reduce the cost of the storage battery itself, reduce the cost and size of the charger, and ensure that the rescue operation is performed by creating a high-voltage side voltage even when the voltage of the high-voltage storage battery drops. The reliability of the rescue operation device can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a schematic configuration diagram showing a third embodiment of the present invention.

FIG. 4 is a relay sequence diagram showing a third embodiment of the present invention.

FIG. 5 is a diagram for explaining a fourth embodiment of the present invention, in which (a) is a relay sequence diagram for performing charge control,
(B) is a charging timing chart.

FIGS. 6A and 6B are diagrams for describing a fifth embodiment of the present invention, wherein FIG. 6A is a schematic configuration diagram, and FIG.

7A and 7B are diagrams for explaining a sixth embodiment of the present invention, wherein FIG. 7A is a schematic configuration diagram, and FIG. 7B is a relay sequence diagram.

8A and 8B are diagrams for explaining a seventh embodiment of the present invention, wherein FIG. 8A is a schematic configuration diagram, and FIG. 8B is a relay sequence diagram.

FIGS. 9A and 9B are diagrams for explaining an eighth embodiment of the present invention, wherein FIG. 9A is a schematic configuration diagram, and FIG. 9B is a relay sequence diagram.

FIG. 10 is a schematic configuration diagram of a conventional technique.

11A and 11B are diagrams for explaining a current pattern during a rescue operation in FIG. 10, wherein FIG. 11A is an actual main circuit current pattern diagram, FIG. 11B is an equivalent current pattern diagram, and FIG. FIG.

FIG. 12 is a graph showing a discharge time-capacity conversion coefficient determined for the storage battery of FIG. 10;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Customer AC power supply 2 ... High voltage side charger 3 ... Low voltage side charger 4 ... High voltage side storage battery 5 ... Low voltage side storage battery 6 ... Contactor contact for brake power supply during rescue operation 7 ... For brake release control Contactor contact 8 ... Brake resistance 9 ... Brake coil 10 ... Contactor contact for main circuit power supply during rescue operation 11 ... DC smoothing capacitor 12 ... Inverter device for rescue operation 13 ... Three-phase induction motor 14 ... Control power supply during rescue operation Contactor contact 15: Gate drive power supply DC / DC converter 16: Rescue operation control power supply DC / DC converter 17: Input / output interface power supply DC / DC converter 18: Gate drive power supply 19: Rescue controller Reference Signs List 20 input / output interface device 21 input / output interface power supply relay contact 22 power failure detection relay Reference numeral 23: battery charging relay 24: battery charging relay 25: battery voltage detector 26: battery voltage detector 27: battery charging control relay 28: battery charging control relay 29: equal charge control on / off delay timer 30: brake Release confirmation limit switch 33 ... Brake release confirmation relay 36 ... Brake power supply contactor during rescue operation 37 ... Current supply contactor after brake release 39 ... Storage battery abnormality detection operation preparation relay 40 ... Step-down insulation transformer 41 ... Inside the charger Rectifier 42 Smoothing capacitor in charger 43 Switching regulator device in charger 44 Rescue operation control load circuit 45 Relay for charger operation command during rescue operation 46 Relay for supplying power to charger during rescue operation 47, 48 Capacitor Limiting resistor for charging 49 ... Smoothing capacitor 50 ... Storage battery Electricity directive for the relay 51 ... relay for power failure the rescue operation during battery connection

Claims (8)

[Claims] 1. An emergency rescue operation device which is started when a main control device for controlling the three-phase induction motor by inverter driving by opening and closing a brake of an elevator car hoisting machine stops due to a power failure or a failure. An inverter device in a rescue operation device for driving and controlling an induction motor; a drive control device for driving and controlling the inverter device; a first DC / DC converter for supplying power to the device; an operation during rescue operation and overall inverter driving Rescue control device for monitoring the control of the rescue control device, a second DC / DC converter for supplying power to the rescue control device, an interface device for inputting / outputting an external signal and the rescue control device, and a power supply for supplying power to the device. 3D
A large-capacity low-voltage storage battery that supplies power to the inverter device and the first to third DC / DC converters; a large-capacity low-voltage storage battery connected in series to the low-voltage storage battery; A high-voltage storage battery having a small capacity equal to or less than a half of the voltage storage battery, and two chargers for individually charging the two types of storage batteries; , The inverter device and the first to third
And a small-capacity high-voltage storage battery connected in series to the large-capacity high-voltage storage battery to supply power to a sequence control device that performs the brake opening / closing control and control at the same voltage. An emergency rescue operation device for an elevator, characterized in that: 2. An intermediate tap is provided in the large-capacity low-voltage storage battery, and power is supplied directly to the interface device from the intermediate tap instead of a third DC / DC converter that supplies power to the interface device. The emergency rescue operation device for an elevator according to claim 1, wherein the emergency rescue operation device is provided. 3. A power failure detector for detecting a power failure or a failure, a first storage battery voltage detector for detecting a voltage of the high-voltage storage battery, and detecting that the storage battery voltage detector is higher than a set voltage. A first storage battery charging control relay to be excited; a second storage battery voltage detector for detecting a voltage of the low-voltage storage battery; and a battery when the storage battery voltage detector detects that the storage battery voltage detector is higher than a set voltage. A second storage battery charging control relay, a first storage battery charging relay that performs charging when the voltage of the high-voltage storage battery is reduced, and a second storage device that performs charging when the voltage of the low-voltage storage battery is reduced. A storage battery charging relay, and a shared charger for alternately charging the low-voltage storage battery and the high-voltage storage battery, wherein the second storage battery voltage detector detects a voltage drop when the customer power supply is normal. Time, The second storage battery charging relay is excited to charge the low-voltage storage battery, the low-voltage storage battery is fully charged, and after the second storage battery voltage detector detects full charge, If the storage battery voltage detector 1 detects a voltage drop, the first storage battery charging relay is excited to charge the high-voltage storage battery, and the high-voltage storage battery is fully charged. 2. The emergency rescue operation device for an elevator according to claim 1, wherein when the first battery voltage detector detects full charge, charging of the low-voltage storage battery and the high-voltage storage battery is stopped. 4. An on-off delay timer which operates when both the first and second battery voltage detectors detect a full charge of a low-voltage battery and a high-voltage battery, and After the storage battery and the high-voltage storage battery have been fully charged, the on-off delay timer is set to the on-delay mode, and during the on-delay period, the low-voltage storage battery is charged at a constant voltage. As a mode, during the off-delay period, the high-voltage storage battery is charged at a constant voltage, and by repeating this, the low-voltage storage battery and the high-voltage storage battery are always charged at a constant voltage and constant current. 4. The emergency rescue operation device for an elevator according to claim 3, wherein: 5. An electromagnetic brake device for releasing the restraint of the three-phase induction motor and a brake coil for releasing the brake, a brake release confirmation limit switch for detecting that the brake has actually been released, and a release detection for the limit switch. The brake release confirmation relay that is demagnetized when the brake is released, the rescue operation brake power supply contactor that supplies a forcing current for releasing the brake at the start of the rescue operation, and the brake release confirmation relay that releases the brake A contactor for supplying power after brake release that supplies a brake holding current after being demagnetized, and a block diode that prevents a current from flowing from the high-voltage storage battery to the low-voltage storage battery when switching from the forcing current to the holding current. When releasing the brake at the start as the brake power supply during rescue operation, At the time of rescue operation, the brake power supply contactor is excited, forcing current flows, and the brake is released.
2. The contactor for forcing is demagnetized when the relay for confirming release of the brake is demagnetized, and the contactor for supplying power is excited after the release of the brake so that a holding current flows. The emergency rescue operation device for an elevator according to any one of claims 1 to 3. 6. A step-down transformer for lowering the customer AC power supply to a voltage equivalent to a voltage of a low-voltage storage battery, a first storage battery voltage detector for detecting a voltage of the high-voltage storage battery, and a detector thereof. A first storage battery charge control relay that is excited when it detects that the voltage is equal to or higher than a set voltage; and a second battery battery that is excited when a power failure or failure occurs when the high-voltage storage battery has a voltage drop due to insufficient charging or abnormality. 1. A relay for rescue operation preparation at the time of abnormality of the storage battery of 1, wherein when the voltage of the high-voltage storage battery is decreasing,
When the emergency rescue operation mode is set, the circuit of the high-voltage storage battery is disconnected by exciting the first storage battery abnormality rescue operation preparation relay, and the high-voltage side storage battery is separated from the low-voltage storage battery. 3. A power supply is supplied to an input of a charger for charging a storage battery, and a high-voltage side power supply is created by operating the charger, and supplied as a brake power supply. An emergency rescue operation device for an elevator according to claim 1. 7. A rescue operation charger operation command relay which is energized when the power failure detection relay detects a power failure or failure and is demagnetized, and a relay for smoothing the output power of the charger in the event of a power failure or failure. A voltage smoothing capacitor, a current limiting resistor for suppressing an inrush current during charging of the smoothing capacitor, and a charger power supply relay during rescue operation which is excited by a voltage near the completion of smoothing capacitor charging, and a power failure or failure occurs. Then, the charger operation command relay at the time of rescue operation is excited and receives the power supply of the low voltage side storage battery,
The emergency rescue operation device for an elevator according to claim 3 or 6, wherein a high-voltage side voltage is generated by operating the charger to supply a brake power. 8. A first storage battery charge command relay that is excited when the first storage battery voltage detector detects a voltage drop, and when the first storage battery charge command relay is excited. In a power failure rescue operation to be demagnetized, a relay for connecting the storage battery series is provided. When a voltage drop of the high-voltage storage battery is detected at the time of power failure or failure, the first storage battery charging command relay is excited, and Voltage-side storage battery and the second
By also energizing the storage battery charging relay,
5. The elevator according to claim 3, wherein charging of the high-voltage storage battery from the low-voltage storage battery is started, and brake power is supplied after the voltage of the high-voltage storage battery increases. 6. Emergency rescue driving equipment.