Traction drive for elevator

Details Traction drive for elevator Traction drive for elevator

2007-04-24

2010-02-16

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156530, C187S258000

Reexamination Certificate

active

07663282

ABSTRACT:
A traction drive for an elevator comprises a sheave for actuating a transmission device of the elevator and a synchronous motor, the synchronous motor comprising a stator with at least one winding for generating a magnetic field rotating around a motor axis and a rotor comprising at least one permanent magnet, the rotor being coupled to the sheave for transmitting a torque. The permanent magnet is longer in the motor axis direction than the stator core and/or the rotor is composed from a plurality of separate permanent magnets and separate magnetic sectors provided alternating in a circumferential direction perpendicular to the motor axis to concentrate the magnetic flux in axial and/or radial direction.

REFERENCES:
patent: 4283875 (1981-08-01), Daniels
patent: 4403161 (1983-09-01), Miyashita et al.
patent: 4464595 (1984-08-01), Hamano et al.
patent: 4468005 (1984-08-01), Nakamura
patent: 4469308 (1984-09-01), Nakamura et al.
patent: 4587449 (1986-05-01), West
patent: 4594525 (1986-06-01), Stokes
patent: 4625392 (1986-12-01), Stokes
patent: 4793054 (1988-12-01), Abbratozzato et al.
patent: 4794291 (1988-12-01), Abukawa et al.
patent: 4954736 (1990-09-01), Kawamoto et al.
patent: 5018603 (1991-05-01), Ito
patent: 5033588 (1991-07-01), Nakai et al.
patent: 5264749 (1993-11-01), Maeda et al.
patent: 5338264 (1994-08-01), Kempf
patent: 5378953 (1995-01-01), Uchida et al.
patent: 5397951 (1995-03-01), Uchida et al.
patent: 5697848 (1997-12-01), Bosley
patent: 5786650 (1998-07-01), Uchida et al.
patent: 5788018 (1998-08-01), Mendelsohn et al.
patent: 5939809 (1999-08-01), Mobius
patent: 6094119 (2000-07-01), Reznik et al.
patent: 6271613 (2001-08-01), Akemakou et al.
patent: 6342745 (2002-01-01), Sakai et al.
patent: 6472789 (2002-10-01), Akemakou
patent: 6522042 (2003-02-01), Du et al.
patent: 6601828 (2003-08-01), Strbuncelj et al.
patent: 6727627 (2004-04-01), Sasaki et al.
patent: 6822359 (2004-11-01), Joho
patent: 6974522 (2005-12-01), Peresada et al.
patent: 7116026 (2006-10-01), Kuwabara et al.
patent: 2002/0135252 (2002-09-01), Burton
patent: 2002/0163270 (2002-11-01), Almada
patent: 2002/0171307 (2002-11-01), Verbrugge et al.
patent: 2003/0025408 (2003-02-01), Miekka et al.
patent: 2004/0004407 (2004-01-01), Laurent et al.
patent: 2004/0108789 (2004-06-01), Marshall
patent: 2004/0217664 (2004-11-01), Kuwabara et al.
patent: 2005/0088052 (2005-04-01), Ionel et al.
patent: 2005/0161413 (2005-07-01), Close
patent: 2005/0168089 (2005-08-01), Miyashita et al.
patent: 2006/0060428 (2006-03-01), Hashiguchi
patent: 0180120 (1986-05-01), None
patent: 385254 (1990-09-01), None
patent: 0445308 (1991-09-01), None
patent: 0473534 (1992-03-01), None
patent: 1 630 120 (2006-03-01), None
patent: 1630120 (2006-03-01), None
patent: 1655259 (2006-05-01), None
patent: 2125362 (1984-03-01), None
patent: 1206859 (1989-08-01), None
patent: 01231631 (1989-09-01), None
patent: 11032462 (1999-02-01), None
patent: 11079627 (1999-03-01), None
patent: 2001322781 (2001-11-01), None
patent: 2002101615 (2002-04-01), None
patent: 2002274770 (2002-09-01), None
patent: 2002345227 (2002-11-01), None
patent: 2005253146 (2005-09-01), None
patent: 9105396 (1991-04-01), None
patent: WO 2005012154 (2005-02-01), None

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