Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-07-03
2007-07-03
Tamai, Karl (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S180000, C310S234000
Reexamination Certificate
active
11117356
ABSTRACT:
Structures of direct current motors or ac commutator (Universal) motors which use a concentrated winding on the rotor with coils wound around the teeth. The number of commutator segments is higher than the number of rotor teeth. Several coils are wound around the same tooth. The terminals of the coils are connected to different segments of the commutator. The parallel paths of the armature winding are perfectly balanced. An equal current distribution through the parallel circuits of the armature is maintained and there is no circulation current between these parallel circuits. The problems related to commutation are reduced because the value of the coil inductances is low. The copper volume of the end-windings, the Joule losses and the axial length of the motor armature are lower than a lap or a wave winding with interlocked coils. Two kinds of structures with a concentrated winding are presented: some with rotor teeth with identical dimensions and some with rotor teeth with different dimensions.
REFERENCES:
patent: 1785515 (1930-12-01), Douglas
patent: 3095515 (1963-06-01), Case et al.
patent: 3515919 (1970-06-01), Houtman
patent: 3553509 (1971-01-01), Schellekens
patent: 3818257 (1974-06-01), Porter et al.
patent: 4197475 (1980-04-01), Ban et al.
patent: 4323804 (1982-04-01), Zelt
patent: 4329610 (1982-05-01), Klein
patent: 4369388 (1983-01-01), Ban et al.
patent: 4437028 (1984-03-01), Ikeda
patent: 4501983 (1985-02-01), Schmider
patent: 4857790 (1989-08-01), Kamiyama et al.
patent: 4868433 (1989-09-01), Fujisaki
patent: 4876472 (1989-10-01), Shiraki et al.
patent: 5121021 (1992-06-01), Ward
patent: 5202599 (1993-04-01), Kao
patent: 5304885 (1994-04-01), Wong et al.
patent: 5374867 (1994-12-01), Takehara
patent: 5691590 (1997-11-01), Kawai et al.
patent: 5723931 (1998-03-01), Andrey
patent: 5929579 (1999-07-01), Hsu
patent: 5949172 (1999-09-01), Katagiri
patent: 5994812 (1999-11-01), Muszynski
patent: 6057626 (2000-05-01), Tanaka et al.
patent: 6300702 (2001-10-01), Jack et al.
patent: 6891304 (2005-05-01), Cros et al.
patent: 55-92558 (1980-07-01), None
patent: 63-23550 (1988-01-01), None
patent: 64-089842 (1989-04-01), None
patent: 6-178473 (1994-06-01), None
patent: 6-189480 (1994-07-01), None
patent: 11-341722 (1999-12-01), None
patent: 11/341723 (1999-12-01), None
patent: 11-341755 (1999-12-01), None
patent: WO 99 33159 (1999-07-01), None
patent: WO 99/50949 (1999-07-01), None
“Design of PM Brushless Motors Using Iron-Resin Composites for Automotive Applications,” J. Cros, P. Viarouge, IEEE, Jan. 1998.
“Synthesis of High Performance PM Motors with Concentrated Windings,” J. Cros, P. Viarouge, IEEE, Sep. 1999.
C.S. Siskind,Direct-Current Machinery, McGraw-Hill Book Company, Inc., pp. 17-39 Jan. 1952.
A. Binder, “Comparison of the Electromagnetic Performance of Simplex Wave and Lap Windings,” IEEE Transactions on Energy Conversion, vol. 8, No. 4, Dec. 1993, pp. 698-703.
E.P. Anderson, et al.,Electronic Motors, Audel, pp. 587-588, Jan. 1983.
Cros Jérôme
Viarouge Philippe
Quebec Metal Powders Limited
Tamai Karl
LandOfFree
Brush DC motors and AC commutator motor structures with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Brush DC motors and AC commutator motor structures with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brush DC motors and AC commutator motor structures with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3805074