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1. (WO2014193341) COOLING OF MACHINE FOR ELEVATOR SYSTEM

Pub. No.:    WO/2014/193341    International Application No.:    PCT/US2013/042874
Publication Date: Fri Dec 05 00:59:59 CET 2014 International Filing Date: Wed May 29 01:59:59 CEST 2013
IPC: H02K 9/22
B66B 1/00
Applicants: OTIS ELEVATOR COMPANY
Inventors: HUBBARD, James L.
VENTURINI, Marco
TENTI, Davide
Title: COOLING OF MACHINE FOR ELEVATOR SYSTEM
Abstract:
In one embodiment, an electric machine includes a rotor including a plurality of permanent magnets and rotatable about a central axis of the machine. The machine further includes a stator including a cylindrical stator shell and a plurality of stator windings positioned at the stator shell and located radially inboard of the plurality of permanent magnets. A plurality of heat sink segments are secured to a radially inboard surface of the stator shell. Each heat sink segment of the plurality of heat sink segments includes a base portion located at the radially inboard surface and a plurality of fins extending radially inwardly from the base portion.