Elevator propulsion device including a power supply arranged to reduce noise in the cab

Abstract

An illustrative example embodiment of an elevator propulsion device includes at least one drive member configured to engage and climb along a vertical structure, a motor module including at least one motor configured to cause movement of the drive member and corresponding movement of an elevator cab, and a power supply including at least one energy source that is configured to provide power to the motor. The power supply is situated adjacent the motor module such that a mass of the at least one energy source provides a noise barrier to reduce transmission of noise from the motor into the elevator cab.

Dependencies are inferred from the claim text.