Elevator power outage operation system

Abstract

An elevator power failure operation system. Electricity is supplied from a storage battery on the control panel side to a door control device via a tail line. Therefore, when the building becomes taller and the tail line becomes longer, a line voltage drop due to the line resistance of the tail line occurs. When the commercial power fails, the elevator power failure operation system switches from the commercial power supply to the storage battery, so that the car stopped between floors runs to the nearest floor and then opens the door to rescue passengers. The system is characterized by comprising: a power conversion unit that converts the power supplied from the storage battery to the car side via the tail line, and the storage battery is set in the control panel that controls the lifting of the car; a door opening and closing control unit that is connected to the power conversion unit and controls the opening and closing of the car door; and car equipment other than the door opening and closing control unit that is connected to the power conversion unit via an opening and closing unit, and the door opening and closing control unit disconnects the opening and closing unit during a specified period including the start of door opening during power failure operation.

Description

Technical Field

[0001] The present invention relates to a power failure operation system for operating an elevator by using a storage battery as a power source after a power failure occurs. Background Art

[0002] In the event of a commercial power outage, the existing power outage operation system uses an internal battery to perform a rescue operation to stop the car at a floor with a landing station. The door control device, which is powered by the battery via a traveling cable, opens the door to rescue passengers from being trapped in the car (for example, refer to Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2005-330017 Summary of the invention

[0006] The existing power outage operation system supplies power to the door control device via the tail wire from the battery on the control panel side. Therefore, when the building becomes taller and the tail wire becomes longer, the line voltage drops due to the line resistance of the tail wire. In addition, the temporary peak power caused by the door opening action increases the line voltage drop, making it difficult to ensure the voltage required for the door control device to open the door. In order to suppress this line voltage drop, the power outage operation system needs to thicken the wire of the tail wire or increase the number of wiring roots.

[0007] The present invention is completed to solve the above-mentioned problems. Its purpose is to suppress the line voltage drop by cutting off the power supply to other car equipment during the specified period of peak power generated by door opening action, thereby suppressing the situation of thickening the tail wire or increasing the number of wiring roots.

[0008] The power outage operation system of the elevator of the present invention switches from commercial power to battery when the commercial power is cut off, so that the car stopped between floors can be operated to the nearest floor and then the door can be opened to rescue the passengers. It is characterized by comprising: a power conversion unit, which converts the power supplied from the battery to the car side via the tail line, and the battery is arranged on a control panel for controlling the lifting and lowering of the car; a door opening and closing control unit, which is connected to the power conversion unit and controls the opening and closing of the car door; and car equipment other than the door opening and closing control unit, which is connected to the power conversion unit via an opening and closing unit, and the door opening and closing control unit disconnects the opening and closing unit during a specified period of time including the start of door opening during power outage operation.

[0009] Effects of the Invention

[0010] According to the present invention, the elevator power outage operation system has the following effect: by disconnecting the opening and closing unit during a specified period including the start of door opening during power outage operation, the line voltage drop can be suppressed, thereby suppressing the situation of thickening the tail wire or increasing the number of wiring roots. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall structural diagram of the elevator of the present invention.

[0012] Figure 2 This is a schematic diagram of the interior of the car of the present invention.

[0013] Figure 3 It is a block diagram of the power outage operation system of the elevator of the present invention.

[0014] Figure 4 This is the operation flow of the power outage operation system of the elevator according to the first embodiment.

[0015] Figure 5 This is the operation flow of the power outage operation system of the elevator according to the second embodiment.

[0016] Description of symbols

[0017] 1: Car; 2: Main rope; 3: Counterweight; 4: Traction machine; 6: Door opening and closing control unit; 7: Control panel; 8: Control cable; 9: Car operating panel; 11: Car door; 12: Floor door; 13: Door sensor; 16: Door closing button; 17: Door opening button; 18: Destination registration button; 19: Notification unit; 20: Destination display unit; 31: Commercial power supply; 32: Battery; 33: Power failure detection unit; 41: Converter; 42: Smoothing capacitor; 43: Inverter; 44: Door motor; 46: Door control unit; 47: DC / DC circuit; 50: 1st opening and closing unit; 51: 1st switching unit; 52: 2nd switching unit; 53: 1st power failure operation control unit; 55: 2nd opening and closing unit; 56: 3rd switching unit; 57: 2nd power failure operation control unit. DETAILED DESCRIPTION

[0018] Implementation Method 1

[0019] use Figure 1 The overall structure of the elevator of the present invention will be described. Figure 1 This is an overall structural diagram of an elevator including the power outage operation system of the present invention.

[0020] The elevator includes a car 1 , a main rope 2 , a counterweight 3 , a traction machine 4 , a door opening and closing control unit 6 , a control panel 7 , a control cable 8 , a car operating panel 9 , a car door 11 , a landing door 12 , and a door sensor 13 .

[0021] One end of the main rope 2 is connected to the upper end of the car 1, and the other end of the main rope 2 is connected to the counterweight 3. The hoisting machine 4 is provided at the middle of the main rope 2 so as to raise and lower the car 1 and the counterweight 3 in opposite directions.

[0022] The control panel 7 transmits and receives signals to and from the door opening and closing control unit 6 connected by a control cable 8 .

[0023] Here, the door control unit 46 is defined as a door opening and closing control unit, the control cable 8 is defined as a tail wire, and the car operating panel 9 and the door sensor 13 provided in the car 1 are defined as car equipment.

[0024] The door opening and closing control unit 6 provided in the car 1 receives a door opening command and a door closing command of the car door 11 from the control panel 7 , and opens and closes the car door 11 .

[0025] The landing door 12 engages with the car door 11 to perform an opening and closing operation.

[0026] The door sensor 13 is a sensor provided at the car door 11 , detects a user entering the car 1 from a landing and a user getting off the car 1 to a landing, and transmits a detection signal to the door opening / closing control unit 6 .

[0027] In response to the detection signal sent from the door sensor 13, the door opening and closing control unit 6 temporarily stops the car door 11 during the door closing operation and then switches to the door opening operation.

[0028] The door sensor 13 uses an optical sensor such as a photoelectric device. The photoelectric device uses a transmission type sensor or a reflection type sensor in which a pair of light projectors and light receivers are arranged at both ends of the entrance and exit of the car 1. In addition to using an optical sensor, the door sensor 13 can also use a non-optical sensor such as an ultrasonic wave or a millimeter wave.

[0029] use Figure 2 A schematic diagram of the interior of the car of the present invention will be described. Figure 2 This is a schematic diagram of a car door 11 viewed from the inside of the car 1 of the present invention.

[0030] A car operating panel 9 , a sub-car operating panel 9 a , and a car door 11 are provided inside the car 1 .

[0031] The car door 11 is opened and closed by the door opening and closing control unit 6 .

[0032] The car operating panel 9 inside the car 1 is equipped with a door closing button 16, a door opening button 17, a destination floor registration button 18, a notification unit 19 and a floor display unit 20, among which the door closing button 16 is used by the user to close the car door 11, the door opening button 17 is used by the user to open the car door 11, the destination floor registration button 18 is used by the users in the car 1 to register the destination floor, the notification unit 19 notifies the users in the car 1, and the floor display unit 20 displays the current floor of the car 1.

[0033] Although the door closing button 16, the door opening button 17 and the destination floor registration button 18 are described as being independently prepared, they may be input means using a touch panel. The input method of the touch panel may be any input method such as a contact method or a non-contact method for the user to operate the car door 11.

[0034] The auxiliary car operating panel 9a inside the car 1 is provided with the same door closing button, door opening button, destination floor registration button, notification means, floor display means, etc. as the car operating panel 9 .

[0035] In addition, among the plurality of car facilities, there are a sub-car operating panel 9a installed at a location different from the car operating panel 9, a wheelchair car operating panel (not shown) used by wheelchair users, and an image pickup device (not shown) for photographing the interior of the car 1.

[0036] use Figure 3 The block diagram of the power outage operation system of the elevator according to Embodiment 1 and Embodiment 2 will be described. Figure 3 This is a block diagram of a power outage operation system of an elevator according to Embodiment 1 and Embodiment 2.

[0037] The control panel 7 includes a battery 32 and a power failure detection unit 33 .

[0038] The commercial power supply 31 input to the control panel 7 is connected to the door opening and closing control unit 6 via the control cable 8 .

[0039] The power failure detection unit 33 provided in the control panel 7 detects a power failure of the commercial power supply 31 input to the control panel 7 .

[0040] The power failure detection unit 33 sends information to the door opening and closing control unit 6 as to whether the commercial power source 31 has failed.

[0041] When the commercial power supply 31 is not out of power, the power outage detection unit 33 opens the circuit between the battery 32 and the door opening and closing control unit 6. When a power outage of the commercial power supply 31 is detected, the battery 32 and the door opening and closing control unit 6 are connected to supply power from the battery 32 to the door opening and closing control unit 6.

[0042] The door opening and closing control unit 6 includes a converter 41 , a smoothing capacitor 42 , an inverter 43 , a door control unit 46 , a DC / DC circuit 47 , and an opening and closing unit 50 .

[0043] The first opening and closing unit 50 includes a first switching unit 51 , a second switching unit 52 , and a first power-off operation control unit 53 .

[0044] The second opening and closing unit 55 includes a third switching unit 56 and a second power-off operation control unit 57 .

[0045] The door opening and closing control unit 6 receives power from the commercial power supply 31 of the control board 7 via the control cable 8, rectifies the AC voltage of the commercial power supply 31 received by the inverter 41, and smoothes it by the smoothing capacitor 42 to convert it into a DC voltage.

[0046] The inverter 43 converts a DC voltage into an AC voltage, supplies power to the door motor 44, and opens and closes the car door 11 using the supplied power.

[0047] exist Figure 3 In the embodiment, the door control unit 46 receives the door opening and closing instructions from the control panel 7 (not shown), the rotation signal from the door motor 44, the signal from the door closing button 16 and the door opening button 17 of the car operating panel 9, the user detection signal from the door sensor 13, etc., and controls the inverter 43.

[0048] When the car door 11 is in the middle of closing, the door control unit 46 stops the closing action of the car door 11 when it receives at least one of a signal from the door opening button 17 of the car operating panel 9, a signal from the door opening button of the auxiliary car operating panel 9a, and a user detection signal from the door sensor 13.

[0049] Door control unit 46 receives information from power failure detection unit 33 regarding whether commercial power source 31 has failed.

[0050] The DC / DC circuit 47 converts the direct current voltage smoothed by the smoothing capacitor 42 into a voltage used in the gate control unit 46. The output voltage of the DC / DC circuit 47 is generally a voltage value of 5V or 12V.

[0051] Even when the commercial power source 31 fails, the DC / DC circuit 47 outputs a DC voltage using the power of the battery 32 .

[0052] Here, the DC / DC circuit 47 is defined as a power conversion unit.

[0053] The first power-off operation control unit 53 opens or closes the connection between the DC / DC circuit 47 and the car operating panel 9 by using the first switching unit 51. Similarly, the first power-off operation control unit 53 opens or closes the connection between the DC / DC circuit 47 and the door sensor 13 by using the second switching unit 52.

[0054] The first power-off operation control unit 53 receives power from the DC / DC circuit 47 , and transmits and receives signals to and from the door control unit 46 .

[0055] Among the signals received by the first power failure operation control unit 53 from the door control unit 46, there are signals indicating whether the commercial power supply 31 is out of power, door opening action start signals, door closing action start signals, etc. On the other hand, among the signals sent by the first power failure operation control unit 53 to the door control unit 46, there are opening completion signals indicating that the first switching unit 51 and the second switching unit 52 are respectively opened, and closing completion signals indicating that they are respectively closed.

[0056] The second power-off operation control means 57 opens or closes the connection between the DC / DC circuit 47 and the auxiliary car operating panel 9a by using the third switching means 56 .

[0057] The second power-off operation control unit 57 receives power from the DC / DC circuit 47 , and transmits and receives signals to and from the door control unit 46 .

[0058] Among the signals received by the second power failure operation control unit 57 from the door control unit 46, there are a signal indicating whether the commercial power supply 31 is out of power, a door opening action start signal, a door closing action start signal, etc. On the other hand, among the signals sent by the second power failure operation control unit 57 to the door control unit 46, there are an opening completion signal indicating that the third switching unit 56 is open and a closing completion signal indicating that the circuit is closed.

[0059] use Figure 4 The operation flow of the power outage operation system according to the first embodiment will be described. Figure 4 This is an operation flow for explaining the operation of the first switching unit 50 and the second switching unit 55 after a power outage of the commercial power source 31 in the power outage operation system of the first embodiment.

[0060] In step S1 , the first switching means 51 and the second switching means 52 of the first opening and closing means 50 are closed, and power is supplied from the DC / DC circuit 47 to the car operating panel 9 and the door sensor 13 .

[0061] Similarly, the third switching means 56 of the second opening and closing means 55 is closed, and power is supplied from the DC / DC circuit 47 to the auxiliary car operating panel 9 a .

[0062] The control panel 7 of the elevator raises and lowers the car 1 using the commercial power supply 31. When the commercial power supply 31 fails during the raising and lowering of the car 1, the power failure detection unit 33 of the control panel 7 detects the failure of the commercial power supply 31.

[0063] In step S2 , the power failure detection unit 33 connects the battery 32 and the door opening and closing control unit 6 .

[0064] The door control unit 46 of the door opening and closing control unit 6 receives information about a power failure of the commercial power supply 31 from the power failure detection unit 33 , and transmits the information about the power failure of the commercial power supply 31 to the first power failure operation control unit 53 and the second power failure operation control unit 57 .

[0065] The first power-off operation control unit 53 opens the second switching unit 52 to cut off the power supply from the DC / DC circuit 47 to the door sensor 13 , and transmits a second opening completion signal indicating that the second switching unit 52 is opened to the door control unit 46 .

[0066] Regarding the cutoff of the power supply to the door sensor 13, there is no problem because the car door 11 is closed during the raising and lowering of the car 1 and the door sensor 13 is not used.

[0067] After receiving the information that the power supply from the door control unit 46 to the door sensor 13 has been cut off, the control panel 7 uses the power of the battery 32 to drive the traction machine 4 and controls the traction machine 4 so that the elevator car 1 stopped due to the power outage of the commercial power supply 31 stops at the nearest floor.

[0068] In step S3, the control panel 7 determines whether the car 1 has stopped at the nearest floor. If the car 1 has stopped at the nearest floor, the control panel 7 transfers to step S4 ("Yes" in step S3). On the other hand, if the car 1 has not stopped at the nearest floor, the control panel 7 continues the movement of the car 1 to the nearest floor and repeats step S3 ("No" in step S3).

[0069] In step S4 , after the car 1 stops at the nearest floor, the control panel 7 cuts off the power supply from the battery 32 to the traction machine 4 , and sends a door opening command to the door control unit 46 .

[0070] After receiving the door opening command from the control panel 7, the door control unit 46 broadcasts to the users in the car 1 using at least one of the notification units 19 of the car operating panel 9 and 9a of the auxiliary car operating panel, so that the users move to the landing after the car door 11 is opened.

[0071] In step S5 , after receiving the door opening command from the control panel 7 , the door control unit 46 transmits a door opening operation start signal for starting the door opening operation to the first power-off operation control unit 53 and the second power-off operation control unit 57 .

[0072] After receiving the door opening operation start signal from the door control unit 46 , the first power-off operation control unit 53 opens the first switching unit 51 to cut off the power supply from the DC / DC circuit 47 to the car operating panel 9 .

[0073] Regarding cutting off the power supply to the car operating panel 9, there is no problem because the door closing button 16, door opening button 17, destination floor registration button 18, etc. provided on the car operating panel 9 are not used while the car door 11 is opening.

[0074] Similarly, upon receiving the door opening operation start signal from the door control unit 46, the second power-off operation control unit 57 opens the third switching unit 56 to cut off the power supply from the DC / DC circuit 47 to the auxiliary car operating panel 9a.

[0075] Regarding cutting off the power supply to the auxiliary car operating panel 9a, there is no problem because the door closing button, door opening button, destination floor registration button, etc. provided on the auxiliary car operating panel 9a are not used while the car door 11 is opening.

[0076] In this way, while the car door 11 is opening, the minimum power supply control required for the car equipment is performed, and the line voltage drop caused by the line resistance of the tail line can be reduced.

[0077] The door control unit 46 receives the first opening completion signal from the first power outage operation control unit 53 and the third opening completion signal from the second power outage operation control unit 57, and controls the inverter 43 to open the car door 11. The first opening completion signal indicates that the first switching unit 51 has been opened, and the third opening completion signal indicates that the third switching unit 56 has been opened.

[0078] Here, the predetermined period is defined as a period during which at least one of the first switching unit 51 , the second switching unit 52 , and the third switching unit 56 is opened.

[0079] In step S6, the door control unit 46 determines whether the car door 11 is fully opened.

[0080] When the car door 11 is fully opened, the door control unit 46 proceeds to step S7 ("Yes" in step S6). On the other hand, when the car door 11 is not fully opened, the door control unit 46 continues to open the car door 11 and repeats step S6 ("No" in step S6).

[0081] In step S7 , the door control unit 46 keeps the car door 11 fully open for a predetermined time, and transmits to the control panel 7 that the car door 11 is fully open.

[0082] The users in the car 1 move toward the landing.

[0083] In step S8, the control panel 7 sends a door closing command to the door control unit 46 after a predetermined time.

[0084] After receiving the door closing command from the control panel 7 , the door control unit 46 transmits a door closing operation start signal for starting the door closing operation to the first power-off operation control unit 53 and the second power-off operation control unit 57 .

[0085] The first power-off operation control unit 53 receives a door closing start signal of the car door 11 from the door opening and closing control unit 6 , closes the first switching unit 51 and the second switching unit 52 , and restarts supplying power from the DC / DC circuit 47 to the car operating panel 9 and the door sensor 13 .

[0086] Similarly, the second power-off operation control unit 57 receives the door closing operation start signal of the car door 11 from the door opening and closing control unit 6, closes the third switching unit 56, and restarts the supply of power from the DC / DC circuit 47 to the auxiliary car operating panel 9a.

[0087] The door control unit 46 receives the first closing completion signal and the second closing completion signal indicating that the first switching unit 51 and the second switching unit 52 have been closed from the first power outage operation control unit 53, and receives the third closing completion signal indicating that the third switching unit 56 has been closed from the second power outage operation control unit 57, and controls the inverter 43 to close the car door 11.

[0088] In step S9, the door control unit 46 determines whether the car door 11 is fully closed.

[0089] When the car door 11 is fully closed, the door control unit 46 proceeds to step S10 ("Yes" in step S9). On the other hand, when the car door 11 is not fully closed, the door control unit 46 continues closing the car door 11 and repeats step S9 ("No" in step S9).

[0090] In step S10 , the first power-off operation control unit 53 receives a signal from the door opening and closing control unit 6 that the car door 11 is fully closed, opens the first switching unit 51 and the second switching unit 52 , and stops supplying power from the DC / DC circuit 47 to the car operating panel 9 and the door sensor 13 .

[0091] Similarly, the second power-off operation control means 57 receives a signal from the door opening and closing control means 6 that the car door 11 is fully closed, opens the third switching means 56, and stops the supply of power from the DC / DC circuit 47 to the auxiliary car operating panel 9a.

[0092] The door control unit 46 receives the first opening completion signal and the second opening completion signal indicating that the first switching unit 51 and the second switching unit 52 are open from the first power failure operation control unit 53, and receives the third opening completion signal indicating that the third switching unit 56 is open from the second power failure operation control unit 57, keeps the car door 11 closed, and ends after sending the information indicating that the car door 11 is fully closed to the control panel 7.

[0093] As described above, the power outage operation system of the elevator in the first embodiment has the following effects: during the specified period of power outage operation including the start of door opening, the opening and closing unit is disconnected to cut off the power supply to other car equipment, thereby suppressing the line voltage drop and being able to avoid thickening the tail wire or increasing the number of wiring roots.

[0094] Implementation Method 2

[0095] use Figure 5 The operation flow of the power outage operation system according to the second embodiment will be described. Figure 5 This is an operation flow for explaining the operation of the first switching unit 50 and the second switching unit 55 after a power outage of the commercial power source 31 in the power outage operation system according to the second embodiment.

[0096] In addition, Figure 5 In the description of the embodiment 1, the steps corresponding to the operation flow of the power outage operation system are assumed to be the same as those in the embodiment 1. Figure 4 The same step numbers are used and their descriptions are omitted.

[0097] In step S11, the door control unit 46 determines whether the door sensor 13 has received a user detection signal of a user moving from the car 1 to the landing station, and whether the door opening button 17 of the car operating panel 9 installed in the car 1 and the door opening button of the auxiliary car operating panel 9a installed in the car 1 have been pressed while the door is closed.

[0098] The door control unit 46 transfers to step S13 ("Yes" of step S11) when the door sensor 13 does not receive a user detection signal of a user moving from the inside of the car 1 to the landing, the door opening button 17 of the car operating panel 9 installed in the car 1 is not pressed, and the door opening button of the auxiliary car operating panel 9a installed in the car 1 is not pressed during the door closing period. On the other hand, in at least any one of the following cases, the door sensor 13 receives a user detection signal of a user moving from the inside of the car 1 to the landing, the door opening button 17 of the car operating panel 9 installed in the car 1 is pressed, and the door opening button of the auxiliary car operating panel 9a installed in the car 1 is pressed, the control unit 46 transfers to step S12 ("No" of step S11).

[0099] In step S12, the door control unit 46 stops the door closing operation of the car door 11, and makes a request to the control panel 7 to stop the door closing command and to change the door closing command to the door opening command.

[0100] The control panel 7 sends a door opening command to the door control unit 46 in response to the door opening command request from the door control unit 46 .

[0101] After the car door 11 stops, the door control unit 46 receives a door opening command from the control panel 7 and sends a door opening operation start signal to start the door opening operation to the first power-off operation control unit 53 and the second power-off operation control unit 57 .

[0102] Upon receiving the door opening operation start signal from the door control unit 46 , the first power-off operation control unit 53 opens the second switching unit 52 to cut off the power supply from the DC / DC circuit 47 to the door sensor 13 .

[0103] Similarly, upon receiving the door opening operation start signal from the door control unit 46 , the second power-off operation control unit 57 opens the third switching unit 56 to cut off the power supply from the DC / DC circuit 47 to the door sensor 13 .

[0104] After receiving the second opening completion signal indicating that the second switching unit 52 has been opened from the first power-off operation control unit 53 and the third opening completion signal indicating that the third switching unit 56 has been opened from the second power-off operation control unit 57 , the door control unit 46 moves to step S5 .

[0105] In step S13, the door control unit 46 determines whether the car door 11 is fully closed.

[0106] When the car door 11 is fully closed, the door control unit 46 proceeds to step S10 ("Yes" in step S13). On the other hand, when the car door 11 is not fully closed, the door control unit 46 continues to close the car door 11 and proceeds to step S11 ("No" in step S13).

[0107] As described above, the power outage operation system of the elevator in the second embodiment has the following effects: during the specified period of power outage operation including the start of door opening, the opening and closing unit is disconnected to cut off the power supply to other car equipment, thereby suppressing the line voltage drop and being able to avoid thickening the tail wires or increasing the number of wiring roots.

[0108] The power outage operation system of the elevator of the present invention constructed as described above switches from the commercial power supply 31 to the battery 32 when the commercial power supply 31 fails, so that the car 1 stopped between floors can be operated to the nearest floor, and then the door is opened to rescue the passengers. It is characterized by comprising: a power conversion unit, which converts the power supplied from the battery 32 to the car 1 side via the tail line, and the battery 32 is arranged on the control panel for controlling the lifting of the car 1; a door opening and closing control unit, which is connected to the power conversion unit and controls the opening and closing of the door of the car 1; and car equipment other than the door opening and closing control unit, which is connected to the power conversion unit via an opening and closing unit, and the door opening and closing control unit disconnects the opening and closing unit during a specified period including the start of door opening during power outage operation.

[0109] Thus, the elevator power outage operation system has the following effect: by disconnecting the opening and closing unit during a specified period including the start of door opening during power outage operation, the line voltage drop can be suppressed, thereby preventing the situation of thickening the tail wire or increasing the number of wiring lines.

[0110] Furthermore, the power failure operation system for an elevator of the present invention is characterized in that the door opening and closing control unit includes a plurality of opening and closing means and performs a required minimum power supply control on a plurality of car devices.

[0111] Thus, the elevator power outage operation system has the following effect: by disconnecting the opening and closing unit during a specified period including the start of door opening during power outage operation, the line voltage drop can be suppressed, thereby preventing the situation of thickening the tail wire or increasing the number of wiring lines.

Claims

1. An elevator power failure operation system, which switches from the commercial power supply to the battery when the commercial power supply fails, so that the car stopped between floors can be operated to the nearest floor, and then the door is opened to rescue passengers, characterized in that: The power outage operation system of the elevator comprises: A power conversion unit that converts power supplied from the storage battery to the car side via a tail line, the storage battery being provided in a control panel that controls the lifting and lowering of the car; a door opening and closing control unit connected to the power conversion unit and performing opening and closing control of the door of the car; and The car equipment other than the door opening and closing control unit is connected to the power conversion unit via the opening and closing unit, The door opening and closing control section opens the opening and closing means during a predetermined period including the start of door opening during power-off operation, thereby cutting off power supply to car equipment other than the door opening and closing control section.

2. The power outage operation system of an elevator according to claim 1, characterized in that: The door opening and closing control section includes a plurality of the opening and closing units, and performs a minimum required power supply control on a plurality of the car devices.

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