Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2002-09-27
2004-04-20
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S256000, C310S256000
Reexamination Certificate
active
06724120
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a stator including a single pole plate having a radial winding, the pole plate being formed by means of punching a plate.
2. Description of the Related Art
FIG. 1
of the drawings illustrates a conventional stator with radial winding. The stator
90
includes a plurality of laminated pole plates
91
and coils
92
wound around the pole arms of the stator
90
. The stator
90
includes a central hole
93
for engaging with an axle tube
94
. In manufacture of the stator
90
, a plurality of pole plates
91
are formed by punching, and the pole plates
91
are then laminated. Thus, manufacture of the stator
90
is time-consuming and is costly in material.
SUMMARY OF THE INVENTION
It is the primary object of the present invention to provide a stator with radial winding, wherein the stator includes a single pole plate that is formed by means of punching a plate. Thus, the stator can be easily and rapidly manufactured.
A stator with radial winding in accordance with the present invention comprises a single pole plate formed by means of punching a plate having excellent conductivity in magnetism and having an appropriate thickness. The pole plate includes a central tubular portion defining a central hole. A plurality of pole arms project from an outer periphery of the tubular portion and extend radially. Each pole arm terminates at an edge. At least one pole face projects from each edge and extends along a direction perpendicular to a plane on which the edge lies.
REFERENCES:
patent: 5331245 (1994-07-01), Burgbacher et al.
patent: 5525852 (1996-06-01), Fanning et al.
patent: 5604389 (1997-02-01), Nitta et al.
patent: 5760512 (1998-06-01), Ohi et al.
patent: 5798583 (1998-08-01), Morita
patent: 6242835 (2001-06-01), Uemura et al.
Hong Ching-Sheng
Horng Alex
Lam Thanh
Sunonwealth Electric Machine Industry Co. Ltd.
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