Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2000-05-01
2001-09-04
Ramirez, Nestor (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S154090, C310S098000, C310S090000, C310S090500, C310S091000, C310S07500D
Reexamination Certificate
active
06285103
ABSTRACT:
TECHNICAL FIELD
The present invention relates generally to a permanent magnetic generator which can generate electricity by the use of a drive motor. The permanent magnetic generator can be prevented to happen to a cogging phenomenon (the revolving with a trembling caused by an attracted phenomenon of the magnetic force when a motor is started), the cost for manufacturing and its weight can be reduced. Also the present invention is suitable for mounting to real property or movable property such as a building, a mountain hut, a ship, an automobile, or the like.
BACKGROUND ART
An exemplary conventional permanent magnetic generator is disclosed in Japanese Patent application Laid-Open (kokai) No. 7-184360, in which a generator comprises an annular magnets (rotor) disposed North and South poles mutually to the direction of rotation, a stator (generative coil housing) have annular coils therein with projections (yoke projection) formed of the silicon steel plate as many poles, five pieces for example as the rotor into the annular magnet, and slits which are formed on the projection to the same direction of projection as respectively to decrease the electromotive force on the projection.
Although the permanent magnetic generator of the above-mentioned structure allows electromotive force decrease or cogging phenomenon control, there are problems as follows:
1. A weight of the permanent magnetic generator is heavy because the stator, made of silicon steel plate, is one of the its elements.
2. It is impossible to increase the amount of the generation of electricity because the annular magnets (rotor) do not have (super) strong magnetic flux density itself.
3. The rotation of the rotor is done inefficiently.
4. The permanent magnetic generator can not be improved to deminish the manufacturing cost and to reduce its size.
Then, the inventor suggested an exemplary conventional permanent magnetic generator as illustrated in
FIGS. 12
to
14
to improve the above-mentioned problems (it does not remain non laid-opens when this application is filed).
The above-mentioned permanent magnetic generator comprises a support member
4
further which is composed of a pair of stationary columns
4
a
,
4
a
fixedly provided at the base
1
and a support arm
4
b
disposed horizontally and fixed to the upper ends of the columns
4
a
,
4
a
; a drive motor
5
which is supported fixedly at the support arm
4
b
of the support member
4
such that the drive motor
5
is centrally located with respect to the axis of the permanent magnetic rotor
10
; a rotary shaft having an elongated bar-like shape, the upper end
6
a
of the rotary shaft
6
coaxially connected to the output shaft
5
a
of the drive motor
5
via a coupling
7
, while the lower end
6
b
of the rotary shaft
6
entering an inverted-conical depression
3
to be supported by the bearing at the base
1
; a permanent magnetic rotor
10
fixed to the rotary shaft, having a plurality of permanent magnets
12
a
,
12
b
, or the like; and a stator
15
having a cylindrical shape and which is disposed on the base
1
such that a predetermined gap
16
is formed between the stator
15
and the rotor
10
.
The permanent magnetic rotor
10
is composed of a synthetic resin mold
11
and a plurality of permanent magnets
12
a
,
12
b
,
12
c
, and
12
d
. The synthetic resin mold
11
is fixedly disposed on the central portion of the rotary shaft
6
, and each end surface thereof has a wheel-like shape. The permanent magnets
12
a
,
12
b
,
12
c
, and
12
d
are circumferen-tially arranged within an outer tubular portion
11
a
of the synthetic resin mold
11
. The synthetic mold
11
is further composed of an outer tubular portion
11
a
, an inner tubular fixing portion
11
b
through which the rotary shaft
6
penetrates, and the connection portions
11
c
radially connect the inner tubular fixing portion
11
b
and the outer tubular portion
11
a.
Concerning with the above-mentioned structure, when the drive motor is started through use of a power supply, the rotary shaft
6
rotates together with the output shaft
5
a
. The rotary shaft
6
smoothly rotates while being supported by the depression
3
of the bearing
2
in a point contact manner, since the synthetic resin mold
11
of the rotor
10
rotates together with the rotary shaft
6
. As a result, magnetic field of the permanent magnetic rotor
10
crosses the stator windings
19
or the stator
15
, so that an induction voltage is generated. Thus electricity can be taken out from the stator windings
19
. Therefore, the permanent magnetic generator can efficiently generate electricity in amount.
The permanent magnetic generator of the present invention is a reformed generator to the above-mentioned invention to efficiently generate electricity in a still more amount.
DISCLOSURE OF THE INVENTION
The present invention (the invention described in claim
1
) provides a permanent magnetic generator which comprises a base
21
, a stator member
35
, a drive-motor support
50
, a rotoary shaft
55
, a rotor
60
, a second magnetic body
56
, a bearing member
80
, and a drive motor
70
. The stator member
35
is horizontally disposed above the base
21
through support members
27
and has a stator support
36
. The drive-motor support
50
is horizontally disposed and fixed to the support members
27
such that a space
61
is formed above the stator member
35
. The rotary shaft
55
penetrtes a first center hole
42
formed in the stator support
36
and a second center hole
51
formed in the drive-motor support
50
and is supported by means of bearing
43
and
52
. The rotor
60
is fixed to the rotary shaft
55
to be located within the space
61
and has annular permanent magnets
65
that face stator windings
38
of the stator member
35
. The second magnetic body
56
is fixedly attached to the projected lower end
55
a
of the rotary shaft
55
such that the second magnetic body
56
floats due to a repulsive force generated between the first and second magnetic bodies
23
and
56
. The bearing member
80
is attached to the drive-motor support
50
in order to support the rotary shaft
55
urged upward through the second magnetic body
56
. The drive motor
70
is fixed to the drive-motor support
50
and is adapted to rotate the rotary shaft
55
through power transmission means
74
and
75
. Therefore, the rotary shaft can be improved to the performance for its rotation.
The present invention (the invention described in claim
5
) provides a permanent magnetic generator including a rotor
60
which further comprises: a rotary plate
62
, annular steel plates
64
, and annular permanent magnets
65
. The rotary plate
62
is horizontally disposed and fixed to the rotary shaft
55
. The annular steel plates
64
are integrally fixed to the lower surface of the rotary plate
62
such that they are opposed to conductor attachment blocks
37
of the stator member
35
. The annular permanent magnets
65
are integrally fixed to the lower surface of the rotary plate
62
such that the annular steel plates
64
and the annular permanent magnets
65
are alternately arranged and are opposed to stator windings
38
of the conductor attachment blocks
37
in a non-contacting state. Therefore, a strong magnetic field can be generated within the space
61
, and the rotary shaft can be improved to the performance for its rotation.
The present invention (the invention described in claim
6
) provides a permanent magnetic generator which comprises a first magnetic body
23
fixedly provided on a base
21
, a stator member
35
, a drive-motor support
50
B, a rotary shaft
55
B, a rotor
60
, a second magnetic body
56
B, and a drive motor
70
B. The stator member
35
is horizontally disposed above the base
21
through support members
27
and has a stator support
36
. The drive-motor support
50
is horizontally disposed and fixed to the support members
27
such that a space
61
is formed above the stator member
35
. The rotary shaft
55
B penetrtes a first center hole
42
formed
Lam Thanh
Laubscher & Laubscher
Ramirez Nestor
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