ELEVATOR Russian patent published in 2021 - IPC B66B9/00 B66B5/02 B66B1/00 

FIELD: electrical engineering.

SUBSTANCE: group of inventions relates to an elevator, a method for controlling and conducting a rescue operation in an elevator. The elevator contains: an engine, a drive for the engine, a contactor, a backup power source and an emergency control device. The drive for the engine contains a frequency converter. The frequency converter contains: a rectifying bridge, an inverter bridge and a DC current line between them. The frequency converter is controlled via a controller, the rectifying bridge, and it is connected to an AC network via three power lines. Power lines contain throttles. The rectifying bridge is implemented by means of controlled semiconductor switches. The contactor is located between power lines and the AC network. The backup power source is designed for the operation of an emergency drive. The emergency control device is designed for implementation of the automatic emergency drive. The backup power source has the possibility of connection only to the first of the specified power lines via the first switch. The second and/or the third of the specified power lines have the possibility of connection to a door assembly via the second switch, as a power source, when the second and the third lines are disconnected from the AC network by the contractor. The emergency control device controls the first switch, as well as the second switch. The emergency control device is connected to a manual drive chain. The manual drive chain has a manual drive switch to turn on the emergency manual drive.

EFFECT: creation of an elevator providing automatic, as well as manual emergency drive for the release of stranded passengers.

19 cl, 2 dwg