Revolving electric machine.

AS AFRICAN AND MALAGASY

INDUSTRIAL PROPERTY PATENT P. 887

Yaounde (Cameroon)

International Patent Classification: 02 hr

NO. 00507

o.cm ïpïp.i

THE V *

13 November 1964 to 16 hr requested 35 min. to the OA m P. I-.

(G.P. no. 50,589) by the financial anonymous said: Companion MCMs, residing in France.

Delivered 15 July 1966, published at Official ballot n° 6/7 of 1966. Priority: Patent application filed in France under the no. 801,692 31 July 1959 on behalf of the applicant.

A rotating electric machine. (Disclosure: George moressée and Robert waste.)

It has already been proposed to associate, in the same machine

electric rotating machine, a set of stator and rotor means,

the latter being mounted on a common shaft.

The present invention concerns a machine of that

genus, but little space.

The present invention provides method of mounting features

various elements of such a machine, as well as the suitable -

nexions and the terminals thereof, for the provision of a

wide range of change in power.

According to the present invention, the machine

electrical machine comprises a plurality of elements

rotor thin, disk-shaped, tapering in opposite

corresponding stator element with which they

define gaps axial planes, these elements, or

least some of them, which includes a flat

to laminar conductive made, for example, by impres -

siON is a known technique.

Among the many advantages of the electrical machine

rotating thus constituted, it should above all the Encom - retaining the

brement in length very small rises

particular diameter. Another notable advantage of

electrical machines of the invention lies in the low

inertia of the rotating part.

Of course, the power variation can be done

according to known methods using either a

speed variation, either a torque variation, either

even both of them.

The description which will follow opposite the drawing

appended will further, by the examples of delivering -

except exemplary non-limiting, how the invention

may be carried out, the features which protrude from both

text that the pattern being, of course, part of

the invention:

Figure 1 is an axial cross-section of a machine

rotating electric multipole DC, SUI provides -

efore the invention;

Figure 2 is an axial section of a variant

embodiment of such a machine;

Figures 3 and 4 are half-axial cuts of

two embodiments of multipolar machines to

alternating current with application of the invention;

Figure 5 is a partial schematic view showing the connections of a stator winding AC such machines;

Figures 6 and 7 are partial cut-outs, made under the lines such as a or b of Figure 5 and corresponding to productions of the kind of those shown Figure 3 and 4 respectively.

The direct current machine according to the invention, shown in Figure 1 includes, by way of non-limiting example, a pair of rotors mounted on a common shaft and evolving between the chordal hinge with which they define flat annular air gaps.

The rotating part of the machine is indeed composed of two armatures 1 and 2 carrying electrical coils flat laminar conductive double sided, same or different, formed or mounted on an insulating support thin disk-shaped, by known methods. Both armatures are attached via a hub 3, 4 on a common shaft rotating in two bearings 5 - 5.

The stator part of said machine as a result of two magnetic circuits respectively corresponding to the rotors 1 and 2 and comprise fixed magnetic yokes 7 and 8 support permanent magnets 9 and 10 provided with pole shoe 11 and 12. A magnetic yoke fixed annular 13, common to both circuits and stator magnetic 7-9-11 8-10-12, is interposed between the two armatures 1, 2, according to a feature of the present invention fitting method.

Brushes bearing 14 of conventional construction, and judiciously distributed in suitable number, lie on one side of the electrical winding of each armature and pick or receive current according to whether it is a generator or a motor. The outputs or inputs of the current are performed by the shunts 15 is where the brushes and their coupling varied, to outside the machine, which can be obtained, according to the characteristics of the armatures, the power variations or of desired speeds.

The casing of the machine is formed of two demiboîtiers 16 and 17 assembled by known means and which can be fitted with conventional fixing members provided.

Figure 2 represents a variant embodiment of rotating machine multipolar electrical direct current, according to the invention, including, by way of non-limiting example, a turning portion with four mounted on a common shaft and defining flat annular air gaps with corresponding stator elements.

The rotating part of the machine is composed, on the one hand, of two armatures 18 - 18 with simple flat laminar conductive electrical coils, analogous to those of the previous example and, on the other hand, an armature 19 double-α - 196 with two flat laminar conductive electrical coils to the same genus, assembled and bonded with the interposition of insulation 19c support and drive.

The two armatures simple 18 - 18 and the armature 19 dual are fixed to a common shaft 20 by means of struts 21, 22 of a nut and a ring stop 23, the assembly of the rotating part being supported by bearings 24 and 25.

Stator magnetic circuits are comprised of two O-rings 26, for example hard ferrite magnet and two covers 27 of sheet steel forming magnetic case for closing the stream, the dimensions of these various elements and their respective positions with respect to the turning part giving much reduced flat annular air gaps. Annular workpieces internal shapes suitable 28 serves as a reinforcement to the entire machine shown in the Figures.

The brush holder device of simple two armatures 18 - 18 has a ring brush holder 31 centered and supported with interposition of an insulating crown 30 in each of the covers 27.

The brushes 29, in suitable number and judiciously distributed, bear, by means of a blade spring 29", on the winding of each armature 18 and pick or receive current. The electrical receptacles 296 of the brush holder device of each of the armatures 18 are passed through openings 27 in the hoods.

Similarly, the electrical sockets of the armature dual 19 extend through openings in holes in the annular parts armature 28. The brush holder device of the armature 19 is twice the same design as that of induced simple, but the output power outlets is via of hard ferrite magnet 26 of the stator, the surfaces at taps instead contact brushes and conduction path being sensitized and, therefore, rendered conductive by deposition indicated diagrammatically at 32 and allow not only conducting the current route but also the connection sockets 33 armatures 19a and 196.

Thus, each of the four electrical circuits having its ends accessible outside, any coupling mode is thereby made possible and the rotary electric machine thus constructed, due to its multiple magnetic circuits, allows the different possihlities mechanical variation of power or speed.

Figure 3 represents an electric rotary machine multi-pole alternating current, according to the invention, including, by way of non-limiting example, three rotors 34 thin disk shaped evolving between the chordal hinge seal and determining therewith flat annular air gaps. The three rotors are mounted on the same shaft 36; their number is whereas nonlimiting. These three rotors 34 are made of squirrel-cage, by means of slits 35, but they could also be solid in thin sheets with hysteresis. They are mounted on the common shaft 36 is by means of a sleeve 37 fixed to this shaft which rotates in bearings (not shown in Figure).

The stator part comprises two magnetic yokes toric soft ferrite end 38 and two intermediate yokes 39 also toric soft ferrite. On each of the yokes 38, 39 is fixed, with the interposition of a thin insulator, an electric winding conductor flat lamellar 40 of the same type as those of the previous examples. These yokes are mounted in parts 41, 42, 43, 44, 45 armature, a housing (whose outline is only initiated) protecting the while forming a housing for the bearings (not shown).

Figure 4 represents a variant of multipolar machine AC, including, by way of non-limiting IEP exem, four rotors 46 thin, disk-shaped, mounted on a common shaft, the number of rotors can be even be different. These may be made of a squirrel cage, but could also be solid and made of thin sheet metal to hysteresis.

The corresponding stator part comprises only two magnetic yokes 47 toric soft ferrite.

On each of these yokes is fixed, with the interposition of a thin insulator, an electric winding conductor flat lamellar double face 48 of the same type as those of the previous examples. It further comprises three other electrical coils stator flat laminar conductive double-sided 49 interposed, without ferrite carrier, in the gaps between the rotors 46 annular flat, thereby determining a succession of axial air gaps.

Through their insulating support the construction of which has been provided for this purpose, these windings spacers 49 are centered by means of spacers 50, 51, 52, 53.

The clamping of the assembly of the stator of the rotating machine thus constituted is effected by means of flanges 54 and housing clamp rods 55 judiciously distributed.

An example of a coupling device and connection of the stator elements multiple machines according to the present invention and more particularly those having been depicted in Figures 3 and 4, is shown in the 5, 6 and 7.

In Figure 5, is shown, larger scale, partial plan schematic view of a constructive disposition as possible. The output terminals 1 and b an electrical winding conductor flat lamellar Dou -