TECHNICAL FIELD

The present invention relates to an electrical generator that is applicable in vehicles manufacturing, shipbuilding, aircraft building, power industry and household.

BACKGROUND OF THE STATE OF THE ART

The WO 2010138970 Al discloses a magnet driving motor and electric generator, combined in one and the same construction. The generator consists of at least one cylindrical stator, having a cylinder with inner diameter, having copper wire coil windings. The cylindrical rotor is axially mounted inside the stator on a driving shaft. Permanent magnets are mounted on the rotor and are located to the coils so that when the generator rotor is rotated by the magnetic motor, permanent magnets mounted to the rotor of the generator to induce electric currents in the coils.

US20102251 12 discloses an electrical machine that can work as a motor as well as a generator. The machine comprises a cylindrical rotor with permanent magnets mounted thereon. The rotor is mounted inside the stator equipped with a plurality number of poles with coils. EP 2107664 A2 discloses an electrical generator comprising cylindrical rotor having permanent magnets, mounted on the rotor outer circumference and having stator with stator windings mounted between the teeth.

The generators widely known from the state of the art require great mechanical or other kind of power to drive the rotor and characterize with complicated construction and are not enough efficient.

SUMMARY OF THE INVENTION

The object of the present invention is a generator having a rotor driven with mechanical or other kind of power applied to the rotor of generator, furthermore the generator to have reduced weight, simplifies constriction, bigger efficiency, and to be embodied in industry and household.

This object is achieved by using a generator with a construction of the rotor and stator, as follows.

According to the present invention the rotor characterizes with cylindrical shape with short shoulder made of nonmagnetic material, aluminum for example. On the cylindrical surface inside the rotor an even number of magnets with equal shape, size and strength of magnetization are fixed. The number and the size of magnets depend on the embodiment of generator. Magnets are arranged at equal distance with their face to the stator in a consecutive direction of magnets N-S, N-S, and so forth.

On the facial side of magnets pole tips, which are metal plates in oval shape are fixed. According to yet another embodiment of the invention forging the magnets themselves are produced in oval shape.

Magnets can be mounted on the rotor through gluing, grouting, clench or trough using another manner.

According to one of the embodiments of the present invention, every one of permanent magnets can be glued with another permanent magnet and a magnet battery to be created in this manner. In front of the facial side of the outer magnet a pole tip copying the rotor shape is arranged.

According to the present invention the pole tip corresponds to the rotor size.

According to the present invention the stator comprises several coil windings with cores of even or uneven number depending on particular generator embodiment. The core of each coil is made of metal with low carbon contents and high electro-conductivity, silicon metal for example. In the center of each coil a groove is formed to improve the magnetic flux distribution.

According to one of the embodiments of the present invention the coil cores can be formed in triangle shape.

The length of each coil winding has to be no more than twice bigger than the length of the whole magnet arranged inside the rotor.

The width of each coil cannot exceed twice the width of magnet. The shape of each coil is concave, i.e. the opposite of convex shape of the facial part of corresponding magnet.

The height of each coil core is equal to the magnet height. Each coil is formed from evenly coiled windings on the core from one or more copper wires. Copper wires are coiled in one and the same direction.

The thickness of the windings cannot exceed 1.5 the width of coil core.

Coils can be fixed to the housing through grouting, gluing, clenching or trough using other fasteners.

Coils are arranged around rotor asymmetrically. The distance between coil windings is defined by width of magnets and distance between magnets.

The center of the first coil is located opposite the center of anyone permanent magnet. In accordance with coil windings number every adjacent coil is arranged at an equal distance multiple to the total of half width of two magnets and distance between magnets.

In order to reduce magnetic losses the shape of each coil core is identical to the rotor shape and it has small fixing tabs in the front part of coil.

The number of coil windings varies from 2 to 100 depending on the embodiments of the present invention forging and the coils arrangement is said above and it is always one and the same regardless their number.

According to the present invention the number of windings and section of copper wire are one and the same for all the coils. According to yet another embodiment of the present invention the number of windings and the number section of copper wire of every coil can vary from coil to coil and at constant rotor revolutions each coil produces electrical power with different voltage.

The generator can be driven via internal combustion engine, electrical motor, steam turbine as well as natural energy recourses such as water, wind or any other kind of energy recourse.

The generator advantages, according to the present invention, in comparison with ones widely known are as follows:

Generator provides generating of electrical power with high voltage at very low speed (rpm).

The rotor revolving is equally efficient at clockwise direction as well as at counter-clockwise direction.

The generator, according to the present invention, characterizes with high efficiency, simplified structure and reduced weight.

BRIEF DESCRIPTIONS OF THE DRAWINGS

Fig.1 is a schematic top view of the generator according to the present invention.

Fig.2 is a schematic side cross section view of the generator according to the present invention. DESCRIPTION OF THE PREFERED EMBODIMENTS

The rotor 8 is made of nonmagnetic material for example Aluminum with dimensions: radius - 223 mm, arm - 111 mm and height - 40 mm and twenty pieces permanent magnets 7 with dimensions 15 mm/ 15 mm/40 mm are fixed through gluing or clench therein. The magnets are arranged at equal distance of 20 mm from one another in the following consequence N - S, N - S. A pole tip with outer shape corresponding to the rotor shape and with dimensions: width equal to 15 mm and thickness equal to 1 mm at the highest part is glued to the facial side of the external magnet to the coils.

The stator comprises upper and bottom aluminum plates 1 and 2 and coils with cores 5 with dimensions: width equal to 30 mm, height equal to 55 mm and length equal to 30 mm fixed thereto. Six coils with cores 5 are mounted. The cores 5 of each coil are made of metal and have dimensions: height equal to 40 mm, width equal to 15 mm and length equal to 30 mm. Each coil consists of 1200 windings and thickness 3 of the conductor 3 pes. of 0.22 mm.

The shaft 3 is connected to upper plate 1 and to bottom plate 2 respectively through upper and bottom bearing 9 and 10 and is driven via disc 4 (Fig.2) having a connection to the shaft of internal combustion engine through driving belt (not shown). On the shaft 3 the rotor 8 is mounted stationary (Fig.2) and 20 equal pieces of permanent magnets 7 are integrally mounted thereon, arranged into nonmagnetic material at an equal distance of 2 mm from one another in a consecutive direction north - south, north - south, and so forth. Outside the rotor 8 six pieces of coils are arranged, and each of them consists of metal core 5 (Fig.2) and winding from copper wires 6. At consecutive movement of north and south magnet poles in front of coil core 5, an electrical current is induced therein. The generator can induce electrical current with different voltage 12, 36, 110, 220 and 380 volts simultaneously and the ends of each coil are connected to different appliances using electric power.

The six coils la, 2a, 3a, 4a, 5a, and 6a are arranged asymmetrically relatively magnets 7 of rotor 8 (Fig.1) and the center of the first coil la coincides with the center of the magnet 7. The center of the second coil 2a (Fig. 1) is arranged with deviation of 5.83 mm from the center of magnet 7 on the counterclockwise direction, being the nearest magnet to the second coil 2a. The center of the third coil 3a (Fig. 1) is arranged with deviation of 11.66 mm from the center of the nearest magnet 7 on the counter-clockwise direction. The coils 4a, 5a, and 6a (Fig.l) are arranged in the same manner with deviation of 5.83 mm on the counter-clockwise direction. Through this coils deviation the achievable effect is the less rotating mechanical power needed to rotate shaft 3 (Fig. 2) in comparison with known generators.

If necessary it is possible several generators to be connected into one system.

Nevertheless the present invention is described in regard to preferable exemplary embodiments and with reference to the drawings it has to be noticed that different changes and modifications are obvious for a specialist in this field. These changes and modifications have to be considered as part of the scope of the present invention as it is defined by the appended patent claims without exceeding this scope.