Rotor of segmental electric generator

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and wind energetics. Rotor of the segmental electric generator includes shaft, hub, rim and magnetic cores in form of two angle connections of straps, one is inside the other one. The straps have fixtures for securing on the rim. Technical result is improvement of the generator efficiency upon minimisation of its price as the rotor is magnetically interacts with the stator via two air gaps: outside and inside, thus reducing magnetic dispersion. Additional electromotive force increasing is due to additional rotor elements only, at that the magnetic field source is the same.

EFFECT: use of strap elements increases produceability.

1 dwg

 

The invention relates to the field of wind energy.

Well-known segment of the rotor, for example, patent RF №2270360, publ. 20.02.2006, bull. No. 5. Segmental rotor includes a hub, blades, rims and cores, which are made in the form of their chain of ferromagnetic and non-ferromagnetic plates, sealed rollers, the chain is located on the rim and provided with a tensioning device.

The downside of it is only the implementation of the radial orientation of the air gap, and the need for a tensioning device.

Also known rotor of wind power by the RF patent №2275530, publ. 27.04.2006, bull. No. 12, which contains the hub, blades, curved elements and magnetic circuits. When the magnetic rotor segment wind power made in the form of coils of the ferromagnetic wire that is installed on the curved elements.

The disadvantage of this rotor is a large number of winding operations.

Of all known analogues closest to the claimed by the totality of existing signs is the rotor according to the patent of Russian Federation №2290534, publ. 27.12.2006, bull. No. 36. The technical result consists in reducing the weight and size of the rotor of the wind power while minimizing its cost by simplifying the manufacturing technology, is ensured by the fact that the rotor segment is aqueous generator, containing the hub, blades, curved elements and the magnetic circuits according to the invention the magnetic core of the rotor is made in the form of ferromagnetic parallelepipeds, alternating with non-magnetic prisms, which are made in the form of an isosceles trapezoid, and the side faces provided with holes for accommodating fastening elements.

The disadvantage of this rotor is that despite the lack of a tension device provides only a radial direction of the air gap, which reduces the efficiency of the generator.

The invention is directed to improving the efficiency of the generator while minimizing its cost.

This is achieved in that the rotor segment generator containing the shaft, the hub, the rim with a magnetic circuit, according to the invention the rotor comprises an external corner connection plates, through which the strip stacked plate inner corner connection, while the rim of the rotor is made with boards, on which were laid these corner joints and secured to them by the collars.

The achievement of the technical result is ensured by the fact that the rotor interact with the stator by two air gaps.

The invention is illustrated in the drawing, which shows the claimed rotor, cut in the vertical plane.

Roto the segment generator includes a wheel rim 1, the hub 2, the shaft 3, the rim has a bead 4 with holes 5, on the side lying external corner connection of the rotor, which is a plate 6, and 7, in this corner connection stacked strip 8 and a similar plate 9 internal corner joints. The rotor interact with the stator having a magnetic circuit 10, between the upper ends of which is ring-shaped magnet 11 is covered by the working coil 12 and tightened nonmagnetic bolt 13. The mounting angle of the compounds of the rotor is carried by a collar 14. The gaps 15 and 16 reduce the flow of dispersion compared to the prototype. The clamps 14 are United with them screws 17 which pass through the opening in the gasket 18, and by means of nuts 19 clamps pull together the design against the outer side of the flanges 4.

Corner connections are tightened by the bolts 20 and 21. The fastening of the stator not shown.

The rotor operates as follows. During rotation of the rim 1 by means of any engine, such as blades of wind power connected with the rim, corner connections, composed of plates 6 and 9, are periodically magnetic contact through the gaps 15 and 16 with the magnetic stator 10. Closing and opening periodically magnetic circuit: the rotor, the left air gaps 15 and 16, the magnetic core 10, a ring-shaped magnet 11, the magnetic circuit 10, the left gaps 15 and 16, the rotor, ka is the eyelet 11 is induced EMF.

Feasibility advantage of this rotor is its high technology based on the use of elements of the bandpass type, and that the additional increment EMF is achieved by only an additional rotary elements, the source of the magnetic field remains the same, but its effectiveness increases due to the presence of two air gaps 15 and 16, and not one, as in the similar.

The rotor segment generator containing the shaft, the hub, the rim with a magnetic circuit, wherein the rotor comprises an external corner connection plates, through which the strip stacked plate inner corner connection, while the rim of the rotor is made with boards, on which were laid these corner joints and secured to them with clamps.



 

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