Title:
【発明の名称】誘導モータ用導電体/バックアイアン複合化セコンダリ
Document Type and Number:
Japanese Patent JPH11510997
Kind Code:
A
Abstract:
An induction motor is provided with a secondary portion 20 comprising an interlaced conductor/back-iron (or ferromagnetic) portion 60 and a purely ferromagnetic back-iron portion 62. The interlaced portion 60 comprises an electrically conductive lattice (or foam) material 61 having pores 63 filled with a ferromagnetic material which results in two interlaced lattices 61,63 which are continuous through a shared volume. The interlaced region 60 provides both good magnetic permeability for passing magnetic flux 30 and good electrical conductivity for flowing induced electrical currents necessary for induction motors. As a result, the effective magnetic gap G1 is minimized while also providing a low-cost induction motor. Alternatively, the lattice 61 may be a ferromagnetic material which is embedded with a conductor.
Inventors:
Peach, Zbignew
Miller, Robin M.
Peter fin
Miller, Robin M.
Peter fin
Application Number:
JP50941997A
Publication Date:
September 21, 1999
Filing Date:
August 14, 1996
Export Citation:
Assignee:
United Technologies Corporation
International Classes:
H02K41/025; H02K41/03; H02K17/02; (IPC1-7): H02K41/025; H02K17/02
Attorney, Agent or Firm:
Fujiya Shiga (2 outside)