Passenger conveyor
AssigneeMitsubishi Electric Corporation
InventorAtsushi MORIGAMI
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Abstract
A power supply circuit of a passenger conveyor converts includes an electrolytic capacitor and a control power supply device configured to supply an electric power to a charging circuit configured to charge the electrolytic capacitor. A storage battery is disposed between a converter and an inverter in parallel with the electrolytic capacitor. When an operation of the passenger conveyor is stopped in response to a key operation, the power supply to the control power supply device is shut off. When the operation of the passenger conveyor is resumed in response to a key operation, a DC electric power charged in the storage battery is supplied to the inverter, to thereby allow the passenger conveyor to resume the operation.
Claims5
A passenger conveyor comprising a power supply circuit, which is configured to cause a converter to convert an AC electric power supplied from an AC power supply into a DC electric power, and then to cause an inverter to reconvert the DC electric power into an AC electric power,
- the power supply circuit comprising:
- a capacitor disposed between the converter and the inverter and configured to smoothen the DC electric power output from the converter, and
- a control power supply to supply an electric power to a charging circuit configured to charge the capacitor when the passenger conveyor is stopped;
- and
- wherein a storage battery is disposed between the converter and the inverter in parallel with the capacitor, and
- wherein, when an operation of the passenger conveyor is stopped in response to a key operation, a power supply from the AC power supply to the control power supply is shut off, and
- wherein, when the operation of the passenger conveyor is resumed in response to a key operation, a DC electric power charged in the storage battery is supplied to the inverter, to thereby allow the passenger conveyor to resume the operation.
Dependencies are inferred from the claim text.