CN102653371A - Elevator control device and method - Google Patents

Abstract

The present invention provides an elevator control device and its control method. The guide rail brake device of the elevator is configured so that even if the power failure lasts for a long time, the voltage of the backup battery of the guide rail brake device drops and the guide rail brake device becomes an operating state. , can also release the guide rail brake device, thereby quickly rescuing the passengers in the elevator car. The backup battery (30) of the safety control device is composed of a plurality of unit batteries connected in series and parallel. In the case of a long-term power failure, the connection of the unit battery pack is reorganized to output the voltage required to start the guide rail brake device 7 (such as the voltage of 96V), the guide rail brake device (7) is kept in a standby (release) state, thus the passengers in the elevator car can be released quickly.

Description

Elevator control device and control method thereof

technical field

The present invention relates to an elevator control device capable of easily rescuing passengers when a power failure occurs in an elevator having a guide rail brake device and a control method thereof.

Background technique

In a traction elevator, it is necessary to provide either (a) a always-operating type backup brake or (b) a standby type backup brake as one of the safety devices in addition to the brake during a normal stop. Among them, as (b) standby type backup brakes, for example, there are suspension brake devices and guide rail brake devices. These brake devices do not operate when the elevator car stops normally, but operate to make The elevator car stops lifting.

(1) When the elevator car moves upward or downward from the floor of the elevator hall with the elevator hall door and the elevator car door open and exceeds the specified distance.

(2) When the speed of the elevator car that is going up and down accelerates above the set speed.

The standby type backup brake must be configured to generate braking force by cutting off the power supply of the standby type backup brake when any of the above-mentioned abnormalities are detected, that is, when the safety control device detects any of the above-mentioned abnormalities (1) or In case of (2), the braking force is generated by cutting off the power supply of the braking device.

On the other hand, when a power failure occurs, the power supply to the braking device is cut off. Therefore, as disclosed in Patent Document 1 and Patent Document 2, in order to prevent the brake device from being in a situation other than the above (1) and (2), When a power failure occurs, the brake device is powered by the battery to keep the brake device in a standby state. In addition, in order to detect the abnormalities of (1) and (2) above during a power outage, it is also necessary to supply power to the safety control device through the battery.

In the event of a power failure, if it is an elevator with an automatic stop device during power failure, the battery can supply power to the braking device to maintain the standby state of the brake, and during this period the elevator car will run to the nearest floor, free the passengers in the elevator car.

Patent Document 1 Japanese Patent Application Laid-Open No. 2006-193281

Patent document 2WO 2005/105647A1

Contents of the invention

However, in an elevator that is not equipped with an automatic stop device during a power failure, due to the limited power of the battery, when the power failure lasts for a long time, the braking device may operate due to the voltage drop of the battery. At this time, if the elevator car is located between the floors where the passengers cannot be rescued, if the guide rail brake device is installed on the upper part of the elevator car, even if the maintenance personnel arrives at the scene, the elevator can only be moved after the power supply is restored. Car, and before that, passengers cannot be freed.

In addition, the guide rail brake device consisting of an operating arm, an operating spring, and an electromagnetic coil (solenoid) requires different electric potentials when starting (when the brake is released by the initial excitation of the electromagnetic coil) and when releasing and holding thereafter. Voltage. Therefore, in order to restart the guide rail brake device during a power failure, it is necessary to back up a high-voltage starting voltage power supply. However, if a battery and a charging circuit dedicated to the starting voltage power supply are installed, there is a problem that the size of the device will increase. .

The object of the present invention is to configure the guide rail brake device so that even if the voltage of the backup battery of the guide rail brake device drops due to a power failure for a long time, the guide rail brake device can be activated and maintained by starting and maintaining the device without increasing the size of the device. device to release the brake, thereby enabling the release of passengers in the elevator car.

As one aspect of the present invention, an elevator control device is provided, which has: an elevator car; a guide rail guiding the elevator car up and down; a guide rail brake device, the guide rail brake device is mounted on the elevator car, and When the excitation of the electromagnetic winding is released, the elevator car is stopped by clamping the guide rail; the guide rail brake control device detects the abnormal lifting of the elevator car, and controls the guide rail brake The action of the device; the starting power supply, which excites the electromagnetic winding of the guide rail brake device with a first voltage according to the starting command from the guide rail brake control device; the maintenance power supply, the maintenance power supply is used to maintain the guide rail In the standby state of the brake device, the electromagnetic winding is kept in an excited state with a second voltage lower than the first voltage; the guide rail brake uses a backup power supply, and the guide rail brake uses a backup power supply for the first Two voltages to keep the guide rail brake device in a standby state; and a backup power supply for the guide rail brake control device during a power failure, and the elevator control device is characterized in that the backup power supply for the guide rail brake control device is composed of a plurality of storage batteries The accumulators are configured to be connected to the electromagnetic winding after switching the connection state between the state of outputting the first voltage and the state of outputting the second voltage.

In a preferred embodiment of the present invention, the backup power supply for the guide rail brake control device is configured such that in normal times, the series bodies of a plurality of battery cells are connected in parallel to form a plurality of series groups, and when connected to the electromagnetic winding, It is possible to switch between a state in which all the battery cells are connected in series to output a voltage value corresponding to the first voltage, and a state in which a voltage value corresponding to the second voltage is output from a small number of the battery cells. After being connected, it is connected with the electromagnetic winding.

In other preferred embodiments of the present invention, there are further provided a first terminal block and a second terminal block, and the first terminal block is configured to connect the positive and negative terminals of a plurality of battery cells to a plurality of connectable terminals, respectively. When the input terminal is used, the voltage is output to the output terminal in the state where the series bodies of the plurality of battery cells are connected in parallel to form a plurality of series bodies groups, and the output terminals of the second terminal block have a first output terminal and a second output terminal, When the positive and negative terminals of the plurality of battery cells are respectively connected to a plurality of connectable input terminals, the first output terminal outputs a voltage value corresponding to the first voltage in a state where all the battery cells are connected in series, The second output terminal outputs a voltage value corresponding to the second voltage from a small number of the battery cells.

As another aspect of the present invention, a control method of an elevator control device is provided, the elevator control device has: an elevator car; a guide rail for guiding the elevator car up and down; a guide rail brake device, and the guide rail brake device is mounted on On the elevator car, when the excitation of the electromagnetic winding is released, the elevator car is stopped by clamping the guide rail; the guide rail brake control device detects the lift of the elevator car Abnormal, and control the action of the guide rail brake device; start the power supply, the start power supply, according to the start command from the guide rail brake control device, excite the electromagnetic winding of the guide rail brake device with the first voltage; maintain the power supply, the In order to maintain the standby state of the guide rail brake device, the holding power supply keeps the electromagnetic winding in the excitation state with a second voltage lower than the first voltage; the backup power supply for the guide rail brake, and the backup power supply for the guide rail brake keeping the guide rail brake device in a standby state with the second voltage during a power failure; The method is characterized in that: when a power failure occurs, the excitation of the electromagnetic winding is switched from the holding power supply to the backup power supply for the guide rail brake, and thereafter, when the power failure lasts for a long time, the backup power supply for the guide rail brake When the power is reduced and the guide rail brake device is in an operating state, the connection structure of a plurality of battery cells of the backup power supply for the guide rail brake control device is reorganized, and the first voltage is applied to the electromagnetic winding a restarting step of restarting; and a standby maintaining step of applying the second voltage to the electromagnetic winding thereafter to maintain the standby state of the guide rail brake device.

According to a preferred embodiment of the present invention, the operation state of the guide rail brake device can be restored to the standby state when the power failure lasts for a long time without causing the device to become larger, so that passengers in the elevator car can be released.

Description of drawings

Fig. 1 is a schematic diagram showing the overall structure of an elevator according to an embodiment of the present invention, showing the relationship among an elevator car, a counterweight, a control device, a guide rail brake device, and the like.

Fig. 2 is a view showing the operating state (when the elevator car is stopped) of the guide rail brake device applicable to the present invention.

Fig. 3 is a diagram showing a standby (released) state of the rail brake device applicable to the present invention.

Fig. 4 is a diagram showing the braking state of the guide rail brake device applicable to the present invention when the elevator car is ascending.

Fig. 5 is a diagram showing the braking state of the guide rail brake device applicable to the present invention when the elevator car is descending.

Fig. 6 is a diagram showing a power supply circuit configuration of a guide rail brake device and a safety control judging section in the elevator control device according to the embodiment of the present invention.

Fig. 7 is a circuit diagram showing a power supply circuit capable of starting and maintaining the guide rail brake device after recharging the battery in the elevator control device according to the embodiment of the present invention.

Fig. 8 is a diagram showing a power supply circuit configuration of a guide rail brake device and a safety control judging section in an elevator control device according to another embodiment of the present invention instead of Fig. 6 .

9 is a diagram showing a power supply circuit capable of starting and maintaining the guide rail brake device after recharging the battery according to another embodiment of the present invention instead of FIG. 7 .

FIG. 10 is a configuration diagram of a wiring connection connector that can be used in the embodiments of FIGS. 6 to 9 in a normal state.

FIG. 11 is a configuration diagram of a wiring connection connector that can be used in the embodiments of FIGS. 6 to 9 during a power failure.

Symbol Description

1: Driving sheave, 2: Steering pulley, 3: Main sling, 4: Elevator car, 5: Counterweight, 6 (61, 62): Guide rail, 7 (71, 72): Guide rail brake device, 8: Elevator control device, 9: tail cable, 10: electromagnetic winding (solenoid), 11: spring for operation, 12: arm for operation, 13: support shaft, 14: wedge member, 15: spring for brake, 16: Braking arm, 17: commercial power supply, 18: starting voltage power supply, 19: holding voltage power supply, 20: control power supply, 21: safety control judging part, 22: starting holding voltage switching unit, 23: car position detection unit, 24: Elevator hall door detection unit, 25: Elevator car door detection unit, 26: Car speed detection unit, 27: Electromagnetic winding power cut-off unit, 28: Power failure detection unit, 29: Electromagnetic winding holding battery, 30: Safety Storage battery for control and judgment section, 31 (311, 312): circuit switching unit at power failure, 32: switching device, 33: voltage drop detection unit, 34: discharge stop unit, 35: notification device, 36: connector for wiring connection (right half), 37: connector for first wiring connection (left half), 38: connector for second wiring connection (left half)

Detailed ways

Embodiments of the present invention will be described below with reference to FIGS. 1 to 11 .

Fig. 1 is a schematic diagram showing the overall structure of an elevator according to an embodiment of the present invention, showing the relationship among an elevator car, a counterweight, a control device, a guide rail brake device, and the like.

The elevator has a main rope 3 wound on a drive sheave 1 and a deflection pulley 2 , one end of the main rope 3 is suspended to hold an elevator car 4 , and the other end of the main rope 3 is suspended to hold a counterweight 5 . A hoist (not shown) is connected to the drive sheave 1, and the drive sheave 1 is rotationally driven by a driving force transmitted from the hoist. By rotationally driving the driving sheave 1 , frictional force is generated between the main rope 3 and the driving sheave 1 , and the main rope 3 is raised and lowered by this frictional force, whereby the elevator car 4 is driven up and down. The ascending and descending movement of the elevator car 4 is guided by guide rails 6 (61, 62).

The guide rail brake device 7 (71, 72) is arranged on the upper part of the elevator car 4, and generates braking force by clamping the guide rail 6. The hoist is driven by the elevator control 8 and the guide rail brake device 7 is controlled by the elevator control 8 via the tail cable 9 .

2 to 5 are explanatory diagrams showing the structure of the guide rail brake device applicable to the present invention. In each drawing, drawing (a) shows a plan view, and drawing (b) shows a side view.

The guide rail brake device 7 is composed of an action mechanism part and a brake mechanism part, wherein the action mechanism part is made of an electromagnetic winding 10, an action spring 11, an action arm 12, a support shaft 13 and a wedge member 14, and the brake mechanism part is composed of a brake It is composed of a spring 15 , a brake arm 16 , a support shaft 13 and a wedge member 14 . The support shaft 13 and the wedge member 14 are shared by the action mechanism part and the braking mechanism part. Two arms 12 for operation and two arms 16 for braking are provided facing each other, and are rotatably supported by support shafts 13 . The front end of the brake arm 16 near the guide rail side is branched up and down on the action arm 12. As will be described later, when the elevator car 4 rises, the brake arm on the lower side works, and when the elevator car 4 descends, the lower brake arm works. , the brake arm on the upper side works.

The front end of the brake arm 16 and the side opposite to the guide rail of the wedge-shaped member 14 have a slope (referring to FIG. The flex needed for a stable bite action and braking.

Fig. 2 shows the operating state of the guide rail brake device 7 when the elevator car is stopped.

As shown in FIG. 2 , the wedge-shaped member 14 clamps the guide rail 6 by the elastic force of the operating spring 11 to keep the elevator car 4 in a static state.

In this state, a starting voltage is applied to the electromagnetic winding 10 from the elevator control device 8 ( FIG. 1 ), and the electromagnetic winding 10 is excited. By exciting the electromagnetic winding 10, the electromagnetic winding 10 generates an electromagnetic force, thereby performing an attracting operation. The operation arm 12 rotates around the support shaft 13 by the attracting operation of the electromagnetic coil 10 . The rail-side end portion of the operating arm 12 moves in a direction away from the rail 6 . The result is shown in Figure 3.

Fig. 3 shows the standby (released) state of the guide rail brake device. The electromagnetic winding 10 is in an excited state, and its attractive force is greater than the reaction force of the operating spring 11, and the rail-side front end of the operating arm 12 is held in an open state. Therefore, there is a gap between the wedge member 14 and the guide rail 6, and the guide rail brake device does not generate braking force.

When in this state, whether the electromagnetic winding 10 has become the attracting state and has become the state shown in FIG. , the voltage is switched to a holding voltage by the elevator control device 8 . Since this holding voltage only needs to hold the tip of the arm 12 on the rail side in an open state, a voltage lower than the starting voltage can be used. For example, the starting voltage can be set to 96V, and the holding voltage can be set to 24V.

When the power supply to the electromagnetic winding 10 is cut off in the standby state shown in FIG. When the elevator car 4 is in a stopped state, it is in the state shown in FIG. 2 .

On the other hand, when the power supply of the electromagnetic winding 10 is cut off during the running of the elevator car 4, the guide rail 6 is clamped by the wedge-shaped member 14, so that a friction force is generated between the guide rail 6 and the wedge-shaped member 14, and by this friction force and the elevator car The raising and lowering operation of the car 4 moves the wedge member 14 from the operating arm 12 to the upper and lower braking arm side.

FIG. 4 shows the braking state of the guide rail brake device when the elevator car 4 is ascending.

Since the elevator car 4 is moving in the upward direction, the wedge-shaped member 14 pressed on the guide rail 6 stays at the position of the action under the action of the frictional force generated between it and the guide rail 6, therefore, relative to the elevator car As far as the compartment 4 is concerned, the wedge member 14 is equal to moving downwards, thereby forming the state shown in FIG. 4 . The wedge-shaped member 14 bites into the narrowed gap between the inclined portion on the lower side of the brake arm 16 and the guide rail 6, and the brake spring 15 is compressed. At this time, under the reaction force of the braking spring 15, a large braking force is generated between the wedge member 14 and the two surfaces of the guide rail 6, so that the elevator car 4 decelerates and stops.

Fig. 5 shows the guide rail brake device in the braking state when the elevator car 4 is descending.

Since the elevator car 4 is traveling in the downward direction, the wedge-shaped member 14 pressed on the guide rail 6 stays at the position of the action under the action of the friction force generated between it and the guide rail 6. Therefore, relative to the elevator car For the compartment 4, the wedge-shaped member 14 is equal to moving upwards, thereby forming the state shown in FIG. 5 . The wedge member 14 bites into the narrowed gap between the upper inclined portion of the brake arm 16 and the guide rail 6, and the brake spring 15 is compressed. At this time, under the reaction force of the braking spring 15, a large braking force is generated between the wedge member 14 and the two surfaces of the guide rail 6, so that the elevator car 4 decelerates and stops.

Fig. 6 is a diagram showing a power supply circuit configuration of a guide rail brake device and a safety control judging section in the elevator control device according to the embodiment of the present invention.

The AC voltage supplied from the commercial power supply 17 is converted into an appropriate voltage by the starting voltage device 18 , the holding voltage device 19 and the control power source 20 , and supplies power to the connected devices.

The starting voltage device 18 and the holding voltage device 19 are power sources for respectively applying a starting voltage (such as a voltage of 96V) and a holding voltage (such as a voltage of 24V) to the electromagnetic winding (solenoid) 10 of the rail brake device 7 . The starting voltage and the holding voltage are switched by turning on or off the starting and holding voltage switching means 22 according to the state of the electromagnetic winding 10 detected by the electromagnetic winding state checking means (not shown). In this embodiment, the contact point 311 of the circuit switching unit 31 for switching to the standby power supply 29 during a power failure maintains the state shown in the figure as long as the power supply continues to supply power. By turning on the starting and holding voltage switching unit 22 in this state, the high voltage for starting is supplied to the electromagnetic winding 10, and after confirming that the guide rail brake device 7 has changed to the standby state shown in FIG. 3 , the starting and holding voltage switching is turned off. The unit 22 is switched to a low hold voltage capable of maintaining the standby state.

The control power supply 20 supplies power (for example, a voltage of 48V) to the safety control judging section 21 .

The guide rail brake device 7 as a standby type backup brake operates in the following cases (1) and (2) to stop the elevator car 4 from moving up and down.

(1) When the elevator car moves upward or downward from the floor of the elevator hall with the elevator hall door and the elevator car door open and exceeds the specified distance.

(2) When the speed of the elevator car that is going up and down accelerates above the set speed.

The safety control judging part 21 detects the above-mentioned states of (1) and (2) according to signals from the car position detection unit 23, the elevator hall door detection unit 24, the elevator car door detection unit 25 and the car speed detection unit 26. When any one of the above-mentioned (1) and (2) is detected, the power supply to the electromagnetic winding 10 is immediately cut off by the electromagnetic winding power cut-off unit 27, and the elevator car 4 is stopped from lifting by the guide rail brake device 7. As a result, the guide rail brake device 7 enters the braking state shown in FIG. 4 or FIG. 5 according to the running direction of the elevator car.

On the other hand, during a power failure, the rail brake device 7 may operate because the power supplied to the electromagnetic winding 10 from a normal power supply is interrupted regardless of whether the electromagnetic winding power cutoff unit 27 is activated. In order to prevent this guide rail brake device 7 from performing unnecessary actions, a power failure detection unit 28 is provided to switch the contact 311 of the circuit switching unit 31 during a power failure according to its detection signal, so that the electromagnetic winding is kept from the battery 29 to the electromagnetic winding 10. Power supply. As shown in FIG. 6 , a series body of a diode 101 and a resistor 102 is connected to the electromagnetic winding 10 , and even if there is some delay when the contact 311 is turned on during a power failure, the electromagnetic winding 10 can be kept in a holding state.

The safety control judging section 21 continues to receive power from the safety control judging section battery 30 via the contact point 312 of the circuit switching unit 31 at the time of power failure. The electromagnetic coil holding battery 29 and the safety control judging unit battery 30 are each provided with a charging circuit not shown.

In this way, even during a power failure, the rail brake device 7 can be kept in a held (released) state.

However, when the power failure lasts for a long time, the voltage of the electromagnetic coil holding battery 29 drops, and the guide rail brake device 7 enters the operating state shown in FIG. 2 . If the guide rail brake device 7 is always maintained in the operating state, it will be difficult for maintenance personnel to stop the elevator car to the nearest floor.

In order to prevent the above situation, the configuration of the battery 30 for the safety control judging section is set as follows.

(1) It is possible to output the holding voltage (voltage B: for example, a voltage of 24V) of the rail brake device.

(2) The starting voltage (voltage A: a voltage of 96 V, for example) of the guide rail brake device can be output.

Therefore, as shown in FIG. 6 , the battery 30 for the safety control judging part is configured to connect battery cells of voltage B (for example, a voltage of 24V) in 2 series and 2 in parallel to output a voltage C (for example, a voltage of 48V). In addition, in order to prevent the guide rail brake device 7 from operating unnecessarily, the power capacity of this battery is set so that the backup time is longer than the backup time of the electromagnetic coil holding battery 29 .

Therefore, when the power failure lasts for a long time and the voltage of the electromagnetic winding storage battery 29 drops, as shown in FIG. 32 is connected with the electromagnetic winding 10. Thus, by operating the switch device 32 , the starting voltage (DC96V) and the holding voltage (DC24V) can be alternately applied to the electromagnetic winding 10 , and the guide rail brake device 7 can be held in the standby state.

As a result, even when the power failure lasts for a long time, the elevator car 4 can be moved, so that the passengers in the elevator car 4 can be released quickly.

According to this embodiment, there is no need to provide a dedicated backup battery required for starting the guide rail brake device 7 during a power failure, so that the elevator control device does not need to be configured as a large elevator control device.

Fig. 8 is a power supply circuit structure diagram of the guide rail brake device and the safety control judging part in the elevator control device according to other embodiments of the present invention, and a voltage drop detection unit and a voltage drop detection unit are added to the power supply circuit structure diagram shown in Fig. 6 . Discharge stop unit. Components that are the same as those in FIG. 6 are denoted by the same symbols, and repeated description thereof will be omitted.

As shown in FIG. 8 , the voltage drop detection unit 33 of the storage battery 29 for electromagnetic winding and the discharge stop unit 34 of the storage battery 30 for the safety control judging part are provided. When the voltage of 29 drops, the discharge stop means 34 stops the discharge of the storage battery 30 for the safety control judging part. As a result, battery power for starting and maintaining the guide rail brake device 7 can be ensured even in the event of a long-term power failure.

Fig. 9 is a power circuit diagram for starting and maintaining the guide rail brake device after battery reorganization according to another embodiment of the present invention, which adds a car position detection unit and an alarm device to the power circuit diagram shown in Fig. 7 .

As shown in Figure 9, by combining the notifying device 35 and the car position detection unit 23, when a power failure occurs, it can be notified to the maintenance personnel performing the passenger rescue operation whether the elevator car 4 is in the area where the elevator door can be opened or whether the elevator car 4 is in the elevator door. Outside the openable area.

FIG. 10 is a configuration diagram of a wiring connection connector that can be used in the embodiments of FIGS. 6 to 9 in a normal state. The right-half connector 36 for wiring connection has 8 input terminals, which are always connected to 4 battery cells, and the same number of output terminals of the left-half connector 37 can be inserted with plugs ( plug in) for quick connection (One Touch Connection). The output terminal of the connector 37 in the left half serves as a power supply terminal for a reference potential and a voltage C (for example, a voltage of 48V), as shown in FIG. 10 . As described above, during normal operation, the storage battery 30 used as the safety control judging section 21 shown in FIG. 6 or FIG. 8 constitutes a required power source of, for example, 48V.

FIG. 11 is a configuration diagram of a wiring connection connector that can be used in the embodiments of FIGS. 6 to 9 during a power failure. The right-half connector 36 for wiring connection has 8 input terminals, which are always connected to 4 battery cells, plugged into the same number of output terminals of the second left-half connector 38 to connect quickly. As shown in FIG. 11, the output terminal of the connector 38 on the left half becomes a reference potential, a voltage A (for example, a voltage of 96V), a voltage B (for example, a voltage of 24V), and a voltage C (for example, a voltage of 48V). Power terminals. In this way, during a power failure, the starting voltage A (DC96V) and the holding voltage B (DC24V) of the electromagnetic winding 10 can be applied by switching as shown in FIG. 7 , and the notification device 35 shown in FIG. A power supply such as 48V is required for power supply.

According to the above embodiment, the operating state of the guide rail brake device can be restored to the standby state when the power failure lasts for a long time without causing the size of the device to be increased by using the storage battery used at ordinary times. passenger.

Claims (8)

1. A control device for an elevator, which has: an elevator car; guide rails for guiding the lifting of the elevator car; a guide rail brake device, the guide rail brake device is mounted on the elevator car, and the excitation of the electromagnetic winding is released , the elevator car is stopped by clamping the guide rail; the guide rail brake control device detects the abnormal lifting of the elevator car and controls the action of the guide rail brake device; the power supply , the starting power supply excites the electromagnetic winding of the guide rail brake device with a first voltage according to the start command from the guide rail brake control device; the holding power supply is used to maintain the standby state of the guide rail brake device maintaining the electromagnetic winding in an excited state with a second voltage lower than the first voltage; a backup power supply for guide rail brakes, the backup power supply for guide rail brakes being used to activate the guide rails at the second voltage in the event of a power failure The brake device is kept in a standby state; and a backup power source for the guide rail brake control device in the event of a power failure, the elevator control device is characterized in that, The backup power supply for the guide rail brake control device is composed of a plurality of accumulators, and the accumulator is configured to be connected to the electromagnetic winding after switching the connection state between the state of outputting the first voltage and the state of outputting the second voltage. connect. 2. The elevator control device according to claim 1, wherein the backup power supply for the guide rail brake control device is configured such that at ordinary times, the series bodies of a plurality of unit storage batteries are connected in parallel to form a plurality of series body groups, and in normal times When connected to the electromagnetic winding, it is possible to output a voltage equivalent to the first voltage from a small number of the battery cells in a state where all the battery cells are connected in series to output a voltage value corresponding to the second voltage. After switching the connection state between the states of the voltage value, it is connected with the electromagnetic winding. 3. The elevator control device according to claim 1, further comprising a first connector and a second connector, The first connector is configured such that when the positive and negative terminals of the plurality of battery cells are respectively connected to a plurality of connectable input terminals, in a state where the series bodies of the battery cells are connected in parallel to form a plurality of series body groups output voltage to the output terminal, The output terminals of the second connector have a first output terminal and a second output terminal, and when the positive and negative terminals of a plurality of battery cells are respectively connected to a plurality of input terminals that can be connected, the first output terminal is connected to all The battery cells are connected in series to output a voltage value corresponding to the first voltage, and the second output terminal outputs a voltage value corresponding to the second voltage from a small number of the battery cells. 4. Elevator control device as claimed in claim 1, it is characterized in that, be further provided with standby power drop detection unit and prevent discharge unit, described backup power drop detection unit detects the power drop of described guide rail brake with backup power supply, so The discharge prevention unit stops discharging of the backup power supply for the guide rail brake control device according to the output of the backup power drop detection unit. 5. The elevator control device according to claim 1, further having a car position detection unit and a notification device, the car position detection unit detects that the position of the elevator car is in the openable area of the elevator door Inside or outside the area where the elevator door can be opened, when the guide rail brake control device is powered by a backup power supply, the notification device notifies the position of the elevator car according to the output of the car position detection unit. In the door openable area or outside the elevator door openable area. 6. A control method for an elevator control device, the elevator control device has: an elevator car; a guide rail for guiding the elevator car to go up and down; a guide rail brake device, the guide rail brake device is mounted on the elevator car, When the excitation of the electromagnetic winding is released, the elevator car is stopped by clamping the guide rail; the guide rail brake control device detects abnormal lifting of the elevator car, and makes the guide rail The brake device operates; the starting power supply, according to the starting command from the guide rail brake control device, excites the electromagnetic winding of the guide rail brake device with a first voltage; the maintenance power supply, the maintenance power supply is used to maintain the guide rail In the standby state of the brake device, the electromagnetic winding is kept in an excited state with a second voltage lower than the first voltage; the guide rail brake uses a backup power supply, and the guide rail brake uses a backup power supply for the first Two voltages keep the guide rail brake device in a standby state; and a backup power supply for the guide rail brake control device that maintains power supply to the guide rail brake control device during power failure, and the control method of the elevator control device is characterized in that it has: When a power failure occurs, the excitation of the electromagnetic winding is switched from the holding power supply to the backup power supply for the guide rail brake. When the guide rail brake device is in the operating state, reorganize the connection structure of the plurality of unit batteries of the backup power supply for the guide rail brake control device, and apply the first voltage to the electromagnetic winding to restart the restart. a starting step; and thereafter a standby maintaining step of applying the second voltage to the electromagnetic winding to maintain a standby state of the guide rail brake device. 7. The control method of the elevator control device as claimed in claim 6, characterized in that, it further has a standby power drop detection step and a discharge prevention step, and in the standby power drop detection step, it is detected that the guide rail brake uses a backup power supply. In the step of preventing discharge, the backup power supply of the guide rail brake control device is stopped from discharging according to the output of the backup power drop detection step. 8. The control method of an elevator control device as claimed in claim 6, further comprising a car position detection step and a notification step, in which the position of the elevator car is detected in the car position detection step In the area where the elevator door can be opened or outside the area where the elevator door can be opened, when the guide rail brake control device is powered by a backup power supply, in the notification step, the elevator is notified according to the output of the car position detection step Whether the position of the car is within the openable area of the elevator door or outside the openable area of the elevator door.

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