Motor with simplified structure and related control device

Details Motor with simplified structure and related control device Motor with simplified structure and related control device

2007-01-30

2010-11-02

Le, Dang D (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S179000

Reexamination Certificate

active

07825561

ABSTRACT:
A brushless motor and a related control device are disclosed in a structure wherein a stator has U-phase, V-phase and W-phase stator poles, with two of the U-phase V-phase and W-phase stator poles carry thereon respective phase windings, in the absence of a selected phase winding related to a remaining one of the U-phase V-phase and W-phase stator poles. The respective phase windings have end portions connected together at a junction point. A three-phase alternating voltage is applied to the respective phase windings and the junction point to allow the stator to have an electromagnetic action thereby drivably rotating a rotor. The stator poles may be formed in trapezoid shapes to minimize interference between associated component parts for easy assembly in high productivity and efficiency with a reduction in torque ripple.

REFERENCES:
patent: 3465225 (1969-09-01), O'Regan et al.
patent: 4733113 (1988-03-01), Smith
patent: 6114782 (2000-09-01), Lin et al.
patent: 2005/0189843 (2005-09-01), Imai et al.
patent: A 06-261513 (1994-09-01), None
patent: A 2005-261182 (2005-09-01), None
Chinese Patent Office, “Chinese Office Action for Chinese Patent Application No. 20070003550.9 (with English translation),” dated Apr. 22, 2010, pp. 1-5 (pp. 1-10 for English translation).

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