Magnetoelectric motor

FIELD: electricity.

SUBSTANCE: magnetoelectric motor comprises a rotor, made of two parallel discs fixed on the shaft, on every of which there is a ring-shaped row of permanent magnets with alternating polarity. Poles of the permanent magnets arranged at one of rotor discs face the opposite poles of the magnets placed on the other disc of the rotor, the stator is placed between discs of the rotor with a gap relative to the shaft and is equipped with circular windings in the form of isosceles trapezoids, sides of which are arranged radially relative to the axis of rotor rotation. According to the invention, the stator is made in the form of two plates parallel to each other, circular windings are placed between plates, sections of circular windings in the bases of trapezoids are bent according to the arc, circular windings of one plate of the stator are inserted into circular windings of the other plate of the stator with formation of modules, besides, the distance l between sections of circular windings in bases of trapezoids exceeds the width b of the ring-shaped row of permanent magnets of the rotor.

EFFECT: increased evenness of torque on a shaft of a magnetoelectric motor and evenness of rotor rotation.

2 cl, 11 dwg

 

The invention relates to the field of electrical engineering and can be used in particular in hybrid cars and electric vehicles, Electromechanical, including automatic control systems, etc.

Known electromagnetic torque motor with two stator with toroidal magnetic circuit and coil windings, the disk rotor with permanent magnet with axial magnetization and alternating polarity, bearings with outer and inner rings and the rotor shaft, with one of the stator is rigidly fixed in the housing; the motor comes with a second disc rotor with the shaft, similar to the first rotor, a stationary hollow axle with wheel hub and adjusting rings, and the rotors are aligned and installed with the possibility of mutual rotation, rotor shafts are hollow and is placed on the outer rings of the bearings, which with two ends mounted on a stationary hollow shaft first stationary stators mounted on the hub of the hollow axis, and a second stator mounted can rotate relative to the first, the adjustment ring is placed on a fixed axis between the end surfaces of the hub and the inner ring of the bearing; a toroidal cores made with trapezoidal teeth and yoke, and the height of the yoke is greater than the height of the teeth on the two heights of the stator winding, SU 1775807 A1.

The main disadvantage of this engine is the so-called "sticking" of the rotor due to the mutual attraction of teeth of the stator and the permanent magnets of the rotor.

Also known magneto-electric motor, the rotor of which is made of two mounted on a shaft parallel discs, each of which is placed an annular series of permanent magnets with alternating polarity, the poles of permanent magnets placed on one of the disks of the rotor facing toward opposite poles of the magnets placed on another disk rotor, the stator is a plate in the form of a disk and placed between the disks of the rotor with a clearance relative to the shaft and provided with an annular windings in the shape of an isosceles trapezoid, the sides of which are located radially relative to the axis of rotation of the rotor; the stator has many divergent fan out in a circle with spokes slots; an annular winding is placed in said spokes; for fixing the stator windings are the inner and outer rings, CN 101951106(A).

This engine is adopted as the prototype of the present invention.

Its disadvantage is uneven torque on the motor shaft and the resulting unevenness of rotation of the rotor. This is because the maximum interaction of the magnetic field winding is of the commutator and the permanent magnet of the rotor occurs when the coincidence of the axes of symmetry of the annular coil and magnet. When changing the mutual position of these axes relative to each other, this interaction is reduced.

The present invention is to improve the uniformity of the torque on the shaft of the magneto of the engine and, accordingly, the uniformity of rotation of the rotor.

According to the invention the electromagnetic motor, the rotor of which is made of two mounted on a shaft parallel discs, each of which is placed an annular series of permanent magnets with alternating polarity, the poles of permanent magnets placed on one of the disks of the rotor facing toward opposite poles of the magnets placed on another disk rotor, a stator disposed between the rotor disks with a clearance relative to the shaft and provided with an annular windings in the shape of an isosceles trapezoid, the sides of which are located radially relative to the axis of rotation of the rotor, the stator is made in the form of two parallel plates, an annular winding is placed between the plates, land annular windings at the bases of the trapezoid are bent in an arc, the circular winding of one stator plate is inserted in the annular winding the other plate of the stator education modules, and the distance / between the land annular windings at the bases of the trapezoid is larger than the width b of koltseobraznoj the number of permanent magnets; between the annular stator windings placed additional flat annular coil in the shape of an isosceles trapezoid, the sides of which are located in one plane between the sides of the other annular windings.

The applicant has not identified any technical solution that is identical to the declared that allows to make a conclusion about conformity of the invention the condition of "Novelty".

Thanks to the implementation of the distinguishing features of independent claim maximum interaction of the magnetic field of the ring of stator windings of the permanent magnet of the rotor occurs twice as often in comparison with the prototype, since the axis of symmetry of the permanent magnet alternately coincides first with the axes of symmetry of the annular windings on one of the plates of the stator, and then with the symmetry axes of adjacent annular windings located on the other plate of the stator, which smoothes uneven torque on the motor shaft. Implementation of the distinctive features of the dependent claims of the invention provides an additional improvement of the uniformity of the torque on the motor shaft.

The applicant has not identified the sources of information, which would contain information about the impact of the distinctive features of invention technical result achieved, which leads, according to the applicant, compliance is a journey of the invention, the criterion of "inventive step".

The invention is illustrated by drawings, which shows:

figure 1 - elements of the engine in a perspective view;

figure 2 - schematic representation of the rotor and stator of the motor, a variant according to claim 1 claims, side view;

figure 3 - section a-a and C of figure 2;

figure 4 - connecting the annular stator winding associated with each other in a perspective view, (module) variant according to claim 1 claims

nafig - adjacent annular stator winding, a view in plan on figure 5;

figure 6 - section b-B in figure 5;

nafig - same as figure 2, a variant according to claim 2;

on Fig - section b-7

nafig - same as figure 4, a variant according to claim 2 of the formula

inventions;

figure 10 is a view in plan in figure 9;

figure 11 - section G-g of figure 10;

The electromagnetic motor includes a rotor made of two mounted on a shaft parallel disks 1 and 2.

On the disk 1 is fixed annular series 3 permanent magnets with alternating polarity, the disk 2 is placed the same number of 4 permanent magnets. The poles of the permanent magnets series 3 facing toward opposite poles of the magnets of the number 4.

The motor stator is designed as two parallel plates 5 and 6 and placed between the disks 1 and 2 with a clearance relative to the shaft 7. The stator is provided with an annular windings 8 in the form of an isosceles trapezoid, the lateral side is s 9 which are located radially relative to the axis of rotation of the rotor. The sections 10 and 11 of the annular windings 8 at the bases of the trapezoid are bent in an arc, with the annular coil 8 mounted on the plate 5 of the stator is inserted in the annular winding 8 of the plate 6 of the stator (4, 9) and filled with epoxy compound to form a unified modules; the distance l between the sections 10, 11 of the annular windings 8 is larger than the width b of the annular series of permanent magnets. Ring winding on the stator plate 5 are connected to each other. Similarly interconnected annular winding on the plate 6.

In the embodiment of Fig.7-11 between the annular windings 8 of the stator placed additional annular winding 12 in the form of an isosceles trapezium. The sides 13 of the windings 12 are located in one plane with the sides 9 of the windings 8. Winding 12 are connected to each other.

Magneto the engine works as follows. In the variant according to claim 1 claims when applying an alternating electric current in winding 8 with a phase shift of 90° between the current in the windings on the plate 5 and the current in the windings on the plate 6 (two-phase current) or in the variant according to claim 2 with a phase shift of 120° between the windings 8 of the plate 5, the windings 12 and the windings 8 of the plate 6 (three phase current) there is an interaction between the magnetic fields of the rows 3 and 4 of the permanent magnets and the magnetic fields generated by flow of electric current in the windings of the stator. The resulting torque, providing the rotation shaft 7 of the engine.

The maximum interaction of the magnetic fields of the windings of the stator with permanent magnets of the rotor occurs when the coincidence of the axes of symmetry of the windings of the stator and the magnets of the rotor.

Since the annular winding of one stator plate is inserted in the annular winding the other stator plate with some shift circumference, increases the number of matches above the axes of the windings of the stator with the symmetry axes of the windings of the rotor in each module in two or, in the variant according to claim 2, three times (in comparison with the prototype), which leads to an increase uniformity of torque on the motor shaft and smoother his work.

For the manufacture of devices used ordinary materials of construction and plant equipment. This circumstance, according to the applicant, allows to conclude that the invention conforms to the criterion "Industrial applicability".

1. Magneto-electric motor, the rotor of which is made of two mounted on a shaft parallel discs, each of which is placed an annular series of permanent magnets with alternating polarity, the poles of permanent magnets placed on one of the disks of the rotor facing to the opposite poles of the mA is nicov, posted on another disk rotor, a stator disposed between the rotor disks with a clearance relative to the shaft and provided with an annular windings in the shape of an isosceles trapezoid, the sides of which are located radially relative to the axis of rotation of the rotor, wherein the stator is made in the form of two parallel plates, an annular winding is placed between the plates, the sections of the annular windings at the bases of the trapezoid are bent in an arc, the circular winding of one stator plate is inserted in the annular winding the other plate of the stator education modules, and the distance l between the sections of the annular windings at the bases of the trapezoid is larger than the width b of the annular series of permanent magnets.

2. The electromagnetic motor according to claim 1, characterized in that between the annular stator windings placed additional flat annular coil in the shape of an isosceles trapezoid, the sides of which are located in one plane between the sides of the other annular windings.



 

Same patents:

FIELD: electricity.

SUBSTANCE: in an electromagnetic generator a rotor is equipped with permanent magnets, and a stator comprises two parallel plates (5, 6), between which there are circular windings (7), made in the form of isosceles trapezoids, sides (8, 9) of which are arranged radially relative to the axis of rotor rotation, and sections (11, 12) of circular windings (7) in trapezoid bases are bent along the arc. The rotor is made of two parallel discs (1, 2) fixed on a shaft (10), on every of which there are ring-shaped rows of permanent magnets (3, 4) arranged on opposite surfaces, and their polarity in every row alternates. Poles of permanent magnets (3, 4) in a single row face opposite poles of permanent magnets (3, 4) of another row. Circular windings (7) are inserted into each other to form modules, at the same time the distance 6 between sections of circular windings (7) in trapezoid bases exceeds width b of the ring-shaped row of permanent magnets (3, 4). At the same time according to this invention between circular windings (7) there is an additional flat circular winding (13) in the form of an isosceles trapezoid, sides (14) of which are arranged in one plane between sides (8, 9) of other circular windings (7).

EFFECT: provision of the possibility to generate three-phase electric current.

FIELD: electrical engineering.

SUBSTANCE: nonsalient pole rotor of synchronous electric machine contains a shaft with flux core having channels for excitation winding, exiting coils laid in channels of the flux core, rings aligning with axial ventilation channels, retaining rings and banding insulation. In pursuance of the present invention retaining rings and banding insulation are made with tangential-oriented radial slots located along length of retaining rings located in several rows preferably opposite gaps between end parts of exciting coils.

EFFECT: improved cooling of front parts of excitation coils located in channels of the core of nonsalient pole rotor of synchronous electric machine.

3 dwg

FIELD: electricity.

SUBSTANCE: in proposed magnetoelectric generator the rotor of which is provided with constant magnets (3) and (4), and stator contains two parallel plates (5) and (6), between which annular windings (7) are arranged, according to this invention the rotor is made of two parallel discs (1) and (2) fixed on shaft, on each of which ring-shaped rows of constant magnets (3) and (4) are arranged on surfaces facing each other and located in each row at equal distance; polarity of constant magnets of each row alternates. At that, poles of constant magnets of one row face opposite poles of constant magnets of other row, and annular windings (7) of stator are made in the form of equal trapezoids the lateral sides (8) and (9) of which are located radially relative to rotor rotation axis, and sections (11) and (12) of annular windings (7) in bases of trapezoids are bent through an arc; annular windings (7) are inserted into each other in pairs. At that, distance ℓ between sections (11) and (12) of annular windings (7) in bases of trapezoids exceeds width b of ring-shaped row of constant magnets.

EFFECT: increasing efficiency coefficient and reducing starting moment of generator, and decreasing noise level during generator operation.

5 dwg

FIELD: electricity.

SUBSTANCE: invention refers to the field of electric engineering and electric machine building, namely, to features of design of rotors of electric machines. Proposed nonsalient pole rotor of synchronous electric machine comprises massive magnetic conducting barrel (1) with slots for excitation winding, coils (2) of excitation winding laid in it and arranged of strip conductor with its bending during winding of coils onto narrow side of strip, band rings (3) distant from ends of magnetic conducting barrel (1) and placed onto aligning rings (6) with axial channels in zone of their inner diameter. In front ends of excitation winding every second turn of coil (2) is insulated, and on wide side of strip of non-insulated conductors (9), along their full length in front parts of excitation winding, there are transverse slots (10) that form a system of slot ventilation channels in assembled excitation winding.

EFFECT: improved cooling of front parts of excitation winding of nonsalient pole rotor of synchronous electric machine.

4 dwg

FIELD: electrical engineering; salient-pole electrical machine manufacture.

SUBSTANCE: proposed magnetic-system coil is wound on edge on flat rectangular-section bus. End portions have air gaps between internal turn and pole core butt-end, very thick slot insulation, and air gaps between all adjacent turns of coil end portion, as well as very thick turn-to-turn insulation. Installed in turn-to-turn gaps in longitudinal symmetry plane of coil are solid insulating spacers, their thickness being equal to turn-to-turn gaps in this plane and their width, much smaller than that of pole; these spacers are attached to surfaces of adjacent turns by means of adhesive. Stack of structural components incorporating end portions of coil turns and spacers in-between is braced in longitudinal symmetry plane by means of nonconducting band characterized in high tensile strength. These H-shaped spacers have top height equal to bus width and total height greater by double thickness of band between projections formed by using proposed method. In this way all four rectangular-section sides of each conductor form surfaces within end portion of coil directly cooled with flushing air.

EFFECT: enhanced efficiency due to higher current density in windings and improved heat transfer.

6 cl, 5 dwg

FIELD: electro-mechanical engineering, in particular, engineering of constructive cooling elements for cooling winding of rotor of salient-pole electric machine.

SUBSTANCE: rotor contains cores of poles with winding coil held on them, in coils of which ventilation channels are made, and spreader wedges mounted along internal perimeter between coils and cores, forming vertical chambers, connected to ventilation channels, chambers are made communicating by means of transverse channels, distributed along height of spreader wedges and positioned in planes of wedges, directed towards coil or towards core, and directed one towards another planes of wedges, and positioned with inclination, while channels in spreader wedges are made on surfaces of wedges, directed towards the coil in through manner along longitudinal axis of wedges in form of slit and positioned with enveloping by longitudinal plane of channel of transverse channels, positioned in adjacent coils of winding.

EFFECT: improved cooling of excitation winding due to more intensive longitudinal circulation of cooling air between coil and core and evening out of flow of cooling air along perimeter of coil.

3 dwg

The invention relates to electrical engineering and of electrical engineering and can be used in high-voltage electrical machines, in particular in the turbo-generators with a rated voltage of 110 kV and above

The invention relates to the field of electrical and mechanical engineering

The invention relates to the field of electrical engineering

The invention relates to the field of electrical engineering and relates to the specifics of the design execution pole submersible electric machine with liquid cooling, intended for electrical machines used, for example, for the electromagnetic stirring of liquid metal on the machines continuous casting

FIELD: electricity.

SUBSTANCE: in an electromagnetic generator a rotor is equipped with permanent magnets, and a stator comprises two parallel plates (5, 6), between which there are circular windings (7), made in the form of isosceles trapezoids, sides (8, 9) of which are arranged radially relative to the axis of rotor rotation, and sections (11, 12) of circular windings (7) in trapezoid bases are bent along the arc. The rotor is made of two parallel discs (1, 2) fixed on a shaft (10), on every of which there are ring-shaped rows of permanent magnets (3, 4) arranged on opposite surfaces, and their polarity in every row alternates. Poles of permanent magnets (3, 4) in a single row face opposite poles of permanent magnets (3, 4) of another row. Circular windings (7) are inserted into each other to form modules, at the same time the distance 6 between sections of circular windings (7) in trapezoid bases exceeds width b of the ring-shaped row of permanent magnets (3, 4). At the same time according to this invention between circular windings (7) there is an additional flat circular winding (13) in the form of an isosceles trapezoid, sides (14) of which are arranged in one plane between sides (8, 9) of other circular windings (7).

EFFECT: provision of the possibility to generate three-phase electric current.

FIELD: electricity.

SUBSTANCE: direct current electromagnetic machine contains a stator frame with permanent magnets installed its inner surface, a rotor with winding and shaft installed in the stator frame suitable for rotation so that a magnetic field of the winding could interact with a magnetic field of permanent magnets made as a block of permanent magnets with central body of soft magnetic material having a polyhedron shape with lateral sides and two sides serving as the bases and at that one base side is an active face of the pole; lateral permanent magnets of hard magnetic material joining lateral sides of the central body so that their magnet field is directed inwards of the central body; a permanent magnet of hard magnetic material joining on of the central body bases with its magnetic field directed towards the active face of the pole, it joins the base of the central body opposite to the pole active face. According to the invention at that at the shaft slip rings are installed and blocks of permanent magnets are installed perpendicular to a plane of the rotor rotation at two opposite sides and directed by the pole active face towards the rotor winding; meanwhile the machine contains closing magnet cores in order to create U-shape at magnetic poles in order to amplify power of the magnetic field and permanent magnets adjoining the central body join the above closing magnet core by the opposite side, at that rotor coils are connected in parallel.

EFFECT: increasing efficiency coefficient of the direct current electromagnetic machine.

6 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: proposed submersible water-filled synchronous generator of vertical design comprises a basic shield, where a circular flat magnetic conductor is fixed, wound from electric steel, with a winding, a rotor disc with permanent magnets, a bearing shield arranged as cantilevered relative to the basic shield and comprising bearings of the rotor shaft. At the same time, according to this invention, the generator is equipped with a thrust sliding bearing, which has a journal in the form of a disc arranged on the rotor shaft, and a step-bearing in the form of a thrust sleeve, which covers the bearing shield at the side opposite to the basic shield, and is fixed with the help of bolts. The entire inner cavity of the generator is filled with water, and the generator with a hydraulic turbine arranged above it is submerged under the water level and is retained in this position with the help of floats, and is kept away from displacement by a retaining device.

EFFECT: reduced axial dimensions and material intensity of a generator with simultaneous increase of its operational reliability.

1 dwg

FIELD: electricity.

SUBSTANCE: in a magnetoelectric generator, the rotor of which comprises a disc (1) fixed on a shaft, and on the disc there is a ring-shaped row of permanent magnets (2) with alternating polarity, arranged as equidistant relative to each other, and the stator comprises two parallel plates (3,4), between which there are windings, besides, stator windings are arranged on U-shaped cores from electrotechnical steel, which are fixed on plates (3, 4) of the stator, width Bc of the end of the U-shaped core (6) makes a half of the width B of the permanent magnet (2) of the rotor, besides, ends of the U-shaped cores (6) of one plate (3) face the ends of the U-shaped cores (6) of the other plate (4) and are displaced relative to them by the distance equal to the half of the width of the permanent magnet (2) of the rotor, besides, the permanent magnets (2) of the rotor are arranged between opposite ends of U-shaped cores (6) of the stator.

EFFECT: reduced magnet resistance in a magnetic circuit, increased intensity of magnetic field, electromotive force induced in stator windings, and a coefficient of generator efficiency.

4 dwg

FIELD: electricity.

SUBSTANCE: low-speed end synchronous generator comprising a rotor arranged in the form of a disc from a non-magnetic material with an excitation system based on permanent magnets and a stator with coils, comprises sections, at the same time in each section a stator is made of one circular magnetic conductor arranged in parallel to the rotor and fixed on stiffening ribs of a casing-free generator frame, coils of stator are placed fully in slots, not protruding beyond limits of a magnetic conductor, in an excitation system the permanent magnets are installed on a rotor disc at its one lateral side in parallel to a magnetic conductor of a stator, besides, rotors of each section are arranged on a single shaft, at the same time to coordinate operation of generator sections, a rotor of each following section is displaced relative to the rotor of the previous section by the following angle: Jmag. = 360° : quantity of permanent magnets of the rotor: quantity of generator sections.

EFFECT: reduction of dimensions due to its execution of several sections, considerable reduction of generator diameter, which is especially important for submersible mini hydraulic power plants, reduction of generator weight due to the fact that its units are fixed on the frame of stiffening ribs, and a rotary rotor is equipped with a protective rim, which eliminates the necessity to use a solid casing, increased efficiency factor due to complete usage of stator coil turns placed fully in slots of a magnetic conductor and not having head parts protruding beyond its borders, making it possible to modify generator low speed when used on rivers with various speed of water flow, which is provided by variation of sections number and displacement of a rotor in each section relative to a rotor of a previous section by an angle between magnets, increased reliability of generator's operation, since availability of a frame from stiffening ribs improves cooling of stator coils protecting them against heating.

3 dwg

FIELD: electrical engineering.

SUBSTANCE: device refers to the wind energy, pacifically to the wind-energy equipment, designed to charge accumulator batteries and power supply for various recipients. The device contains a motionless stator winding solenoid type and two rotors made of nonmagnetic materials. Rotors have disk form and are placed in axial alignment. The same even number of permanent magnets is distributed on each rotor. Stator winding is reeled on the wind powered generator's axis and is placed between the two cylindrical cores made of the ferromagnetic materials. Large-diameter core is fasten from the outside in the body frame. Both rotors are placed on a single spindle which is connected to the wind wheel and has the ability to rotate in the bearing assemblies. The permanent magnets have a Pi shape. Their poles are placed in axial alignment on each of the rotor and are directed in a heteropolar manner towards each other. Each of the permanent magnets is with heteropolar alternating poles on each rotor has the ability of axial alignment placement with cylindrical core ends. Cylindrical core ends have serrate shape with number of serratures half as less as a number of the permanent magnets. Serratures are placed in axial alignment to each other.

EFFECT: enhanced directed EMF in the stator winding and facilitated stator manufacturing technology.

3 dwg

FIELD: power industry.

SUBSTANCE: double-rotor tooth wind-driven generator includes stationary stator winding of solenoid type, as well as two rotors from non-magnetic material. Rotors are made in the form of discs and located coaxially. Equal even number of constant magnets is distributed uniformly on each rotor. Stationary stator winding of solenoid type is wound along axis of wind-driven generator and located between two cylindrical cores from ferromagnetic material. Core with larger diameter is fixed with its outer side in the housing. Both rotors are arranged on one shaft. Shaft is connected to wind wheel and has the possibility of being rotated in bearing supports fixed in the housing. Constant magnets are U-shaped, and their poles are located coaxially on each of the rotors and directed unipolar to each other. Each of constant magnets has the possibility of coaxial rotation with edges of cylindrical cores. Edges of cylindrical cores have tooth shape with number of teeth equal to number of constant magnets. Teeth of one edge of cylindrical cores are coaxial to slots of other edge of cylindrical cores. In each slot there located is connection strap from ferromagnetic material, which connects both cores.

EFFECT: increasing EMF induced in stator winding and simplifying the manufacturing procedure of stator winding.

4 dwg

FIELD: electricity.

SUBSTANCE: in the proposed design of the unipolar electric machine (UM) the electric contacts are electroconductive roller swinging contacts and fixed cylindrical cartridges, to which electric conductors are soldered. Such design of electric contacts without high complexity makes it possible to electrically serially connect all their rotor discs into the anchor circuit, which allows increasing of working voltage. At the same time the swinging friction between electroconductive rollers and fixed cylindrical cartridges, and also active parts of rotor discs (hubs) is incomparably less than sliding friction between conventional sliding brush contacts and contact rings.

EFFECT: improved electromechanical characteristics, increased reliability of operation, increased wear resistance, simplified design, increasing working voltage of the unipolar electric machine several times, expansion of its field of application.

2 dwg

FIELD: electricity.

SUBSTANCE: in proposed magnetoelectric generator the rotor of which is provided with constant magnets (3) and (4), and stator contains two parallel plates (5) and (6), between which annular windings (7) are arranged, according to this invention the rotor is made of two parallel discs (1) and (2) fixed on shaft, on each of which ring-shaped rows of constant magnets (3) and (4) are arranged on surfaces facing each other and located in each row at equal distance; polarity of constant magnets of each row alternates. At that, poles of constant magnets of one row face opposite poles of constant magnets of other row, and annular windings (7) of stator are made in the form of equal trapezoids the lateral sides (8) and (9) of which are located radially relative to rotor rotation axis, and sections (11) and (12) of annular windings (7) in bases of trapezoids are bent through an arc; annular windings (7) are inserted into each other in pairs. At that, distance ℓ between sections (11) and (12) of annular windings (7) in bases of trapezoids exceeds width b of ring-shaped row of constant magnets.

EFFECT: increasing efficiency coefficient and reducing starting moment of generator, and decreasing noise level during generator operation.

5 dwg

FIELD: engines and pumps.

SUBSTANCE: in compliance with first version, permanent magnets and electromagnets are arranged on two disks fitted on shaft. Note here that first disk with lower moment of inertia supports permanent magnets while second disk support electromagnets. Note also that retainers to fix disk position and adjust their pitch in rotation are fitted on both disks. In compliance with second version, electromagnets and said both retainers are arranged on both disks fitted on shaft.

EFFECT: simplified design, stable operation at low rpm.

2 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: in an electromagnetic generator a rotor is equipped with permanent magnets, and a stator comprises two parallel plates (5, 6), between which there are circular windings (7), made in the form of isosceles trapezoids, sides (8, 9) of which are arranged radially relative to the axis of rotor rotation, and sections (11, 12) of circular windings (7) in trapezoid bases are bent along the arc. The rotor is made of two parallel discs (1, 2) fixed on a shaft (10), on every of which there are ring-shaped rows of permanent magnets (3, 4) arranged on opposite surfaces, and their polarity in every row alternates. Poles of permanent magnets (3, 4) in a single row face opposite poles of permanent magnets (3, 4) of another row. Circular windings (7) are inserted into each other to form modules, at the same time the distance 6 between sections of circular windings (7) in trapezoid bases exceeds width b of the ring-shaped row of permanent magnets (3, 4). At the same time according to this invention between circular windings (7) there is an additional flat circular winding (13) in the form of an isosceles trapezoid, sides (14) of which are arranged in one plane between sides (8, 9) of other circular windings (7).

EFFECT: provision of the possibility to generate three-phase electric current.

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