Magnetoelectric generator |
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IPC classes for russian patent Magnetoelectric generator (RU 2474032):
  
 Low-speed end synchronous generator / 2446548
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.
 Twin-rotor solenoid wind powered generator with a tooth stator / 2442018
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.
 Double-rotor tooth wind-driven generator / 2435983
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.
 Multi-disc unipolar dc machine without sliding contacts / 2435286
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.
 Magnetoelectric generator / 2427067
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.
 High-torque engine (versions) / 2426212
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.
 Motor with transverse flow and turbomotor with motor with transverse flow of this type / 2410823
Invention refers to the field of electric engineering, in particular, - to electric machines, and relates to arrangement of motors with transverse flow used, in particular, in the field of aviation. In proposed motor with transverse flow the rotor has several rings of permanent magnets arranged along axis next to each other, formed by separate magnets with magnetic orientation alternating in radial direction. Stator has several coils oriented coaxially relative to rings of permanent magnets of rotor. Each of coils of stator has two connections and on its side that faces rotor is covered with poles that enter into each other, which face rings of permanent magnets of rotor. Each of poles is located on the same line with one of separate magnets. Controlled active source of reactive power has two connections for each coil, with which according stator coil is connected. Control device in case of failure in one or several coils of stator generates control signals for active sources of reactive power so that two connections of according stator coil are connected to each other in a low-ohm manner. Besides, proposed motor with transverse flow may be used as start generator for turbomotor, and at the same time it is connected without possibility of rotation with rotary shaft of turbomotor.
 Face-type electrical machine / 2406213
Proposed face-type electrical machine includes two pairs of packages containing stators of different diametres, which are shifted in axial direction with regard to each other, and two pairs of packages containing rotors of different diametre, which are shifted in axial direction with regard to each other. In addition, one pair of large diametre stator packages is installed on inner surface of machine housing, one pair of minor diametre stator packages is installed on end bracket. Rotor packages are provided with poles represented as permanent magnets and installed on common basis so that poles of minor diametre rotor packages are faced to the working surfaces of minor diametre stator packages, and poles of the pair of large diametre rotor packages are directed to the working surfaces of the pair of large diametre stator packages.
 Axial contactless direct current generator / 2402858
Proposed axial contactless direct current generator contains a housing, a subexciter, an exciter and the main generator. The permanent magnets of the subexciter inductor and the magnetic conductors in the grooves whereof the windings of the subexciter, the exciter and the main generator are laid are designed to be axial. The side axial magnetic conductors are rigidly mounted inside the housing while the permanent magnets of the subexciter inductor and the inner axial magnetic conductor are rigidly mounted on a shaft so that to be capable of rotation relative to the side axial magnetic conductors. The permanent magnets of the subexciter inductor are mounted on the butt-end of one side axial magnetic conductor while the inner axial magnetic conductor is mounted between the side axial magnetic conductors. The inner axial magnetic conductor and the side axial magnetic conductor on the butt-end whereof the permanent magnets of the subexciter inductor are mounted have two active but-end surfaces with grooves while the other side axial magnetic conductor has one active but-end surface with grooves. Laid in the grooves of the side axial magnetic conductor with two active but-end surfaces on the side of the permanent magnets of the subexciter inductor is a single-phase exciter excitation winding connected to the subexciter operational winding via a multi-phase double half-period rectifier. Laid in the grooves of the inner axial magnetic conductor on the side of the exciter excitation winding is a multi-phase exciter operational winding while on the other side a single-phase main generator excitation winding is laid connected to the exciter operational winding via the multi-phase double half-period rectifier. Laid in the grooves of the side axial magnetic conductor with a single active but-end surface is a multi-phase main generator excitation winding connected to the multi-phase rectifier.
 Disk electric machine / 2394340
Proposed disk electric machine comprises inductor and anchor, every of which includes a set of disks, which form common set of electric machine disks, at the same time anchor disks are made of non-magnetic dielectric material and contain magnetic elements that create magnetic flow of anchor, and disks of inductor are made of non-magnet material, and comprises magnetic elements, which create magnetic flow of inductor, besides magnetic elements are located in each disk radially at identical angle, and to each other so that axis of electric machine rotation is parallel to vector of magnetisation of each magnetic element, and directions of magnetisation vectors of two near magnetic elements arranged on a single disk are opposite, besides number of magnetic element in each disk is identical and even. Also electric machine comprises closers of magnetic flow, which are arranged in the form of solid disks from soft magnetic material and are located on sides of common disks set. According to invention, magnetic elements of inductor are made of permanent magnets, magnetic elements of anchor disk are arranged in the form of wave winding with working sections arranged mostly radially in zone of location of magnetic elements of inductor and closed between each other with front sections.
 Electromechanic variator / 2447569
Electromechanic variator is made as electrically interconnected generator and electric motor. It is equipped with induction coils and excitation windings installed in alignment, one armature common for electric motor and generator with winding connected to its current collector. Magnetic flows of both induction coils cross armature winding and induce opposed electromotive forces in it. Variator driving shaft is connected to common armature. One of induction coils is stationary while the second one is rotary and connected to driven shaft of variator. Excitation winding of rotary induction coil has independent current collector. Depending on required direction of driven shaft rotation in regard to driving shaft this unit ensures possibility to connect excitation winding of rotary induction coil to independent direct current source or current collector of armature winding. At that excitation winding of stationary induction coil is connected to current collector of armature winding or to independent source of direct current respectively.
 Pulse motor / 2443048
Pulse motor in general (without frame) includes three discs on one rotation axis, with two outer discs (stator) are retractable and are placed on the guideways in extreme positions, and the middle disc is the rotating rotor. Identical halves of stator, moved on the axis relative to electric magnets of each other by 90° have different poles of working surfaces located on them on the ring of electric magnets and permanent magnets (left half of the stator - N pole, right half of the stator - S pole), retractable along the guideways, with third disc - rotor - rotating between them with one electric magnet and two permanent magnets placed on it with the shift of 120° with left plane of the working surfaces of all three magnets of the rotor having N pole and the right plane having S pole. Operating principle of pulse motor is based on repulsion of similar poles of the rotor from magnets of each of the halves of stator, with permanent magnet of the stator interacting with permanent magnets of rotor give additional acceleration to rotor rotation, with stator electric magnets are powered in pulse mode, and rotor electric magnet is powered in continuous mode.
 Super-flywheel energy storage / 2417504
Super-flywheel energy storage comprises a motor-generator and a super-flywheel enclosed into a tight vacuumised shell. The motor-generator is arranged in the form of a double-disc stator and a disc rotor Y arranged between them with permanent magnets arranged on its surfaces, besides, value of air gap between the upper stator disc and the rotor disc is arranged of smaller diametre compared to value of air gap between the lower disc of stator and rotor disc. The super-flywheel, accumulating energy, is rigidly connected to the rotor disc. As a result of various value of air gaps, the considerable axial electromagnet force is generated, which is directed upwards and fully or partially balances weight of super-flywheel and rotor, thus unloading the device magnetic supports. The super-flywheel energy storage comprises heat exchangers, which exhaust heat released by windings and magnetic conductors of the stator. For emergency braking there is a braking device made of braking electric coils and a braking disc, role of which is performed by the rotor disc.
 Commutatorless ac motor / 2358376
Invention relates to the field of electrical engineering immediately dealing with design of frequency regulated ac motors and is to be implemented for design and manufacture of an electric drive enabling smooth and cost-efficient adjustment of the shaft speed within a wide range of its measurements with the starting torque value maintained sufficiently high. The proposed commutatorless ac motor contains an armature with insulated short-circuited windings rigidly mounted on the shaft and a stator composed of two parts that have separate excitation windings. The stator first part is designed as poled and asynchronous; the stator second part is circular-shaped having projections and axial grooves arranged alternatively on the inside. A match of a projection and a groove arranged on diametrically opposed sides of the stator has a redoubled width.
 Electrical machine (alternatives) / 2286641
Proposed electrical machine has power supply, magnetic inductor with shaft-mounted commutator disposed within frame, and two shaft-mounted armatures with respective commutators and brushes; armatures are disposed in opposition on butt ends of magnetic inductor. Electrical machine of other design alternate has power supply, shaft-mounted internal armature with commutator and brushes, shaft-mounted magnetic inductor with commutator around internal armature, as well as additional external armature with commutator and brushes which is designed so that magnetic inductor is disposed between internal and external armatures.
 Electric motor / 2248657
Proposed motor has circular stator core with permanent magnets symmetrically disposed on its outer and inner surfaces over its circumference in alternating polarity and through core thickness in opposing polarity; it also has double-section rotor one of whose sections encloses stator and functions as external section while other section is disposed inside stator and functions as internal section. In addition motor has commutator-type current distributor and current collector both mounted for contacting commutator-type distributor segments and are connected to area of electromagnets of mentioned rotor sections.
 The electric motor for sealed objects / 2173926
The invention relates to the field of special electrical machines, in particular to the design of asynchronous electric sealed engines used in industrial plants to operate in a chemically aggressive, radiation and explosive gaseous and liquid environments, at high pressures and temperatures and containing encapsulated stators
 Drive unit / 2129965
The invention relates to driving devices for mobile media, and can be used in the manufacture of roller platforms, wheelchairs and accessories their drive-wheel motor
 Three-phase motor / 2088027
 Two transformers motor / 2086068
The invention relates to electrical engineering and can be used in the design dvuhstronnih motors
 Structures of coil from foil and methods of their winding for axial electrodynamic machines / 2471278
Stator for electrodynamic machines comprises a coil, providing for the possibility to generate ampere-turns ("AT") of a magnetic flow. A coil comprises a foil conductor, comprising a section of foil conductor displacement, configured as capable of displacing sections of the foil conductor and an element of an excitation pole having multiple zones. Sections of the foil conductor are arranged on the element of the excitation pole, which comprises the first and second zones. The first section of the foil conductor is arranged on the first zone, and the second one - on the second zone. A section of foil conductor displacement connects the first section of the foil conductor with the second section of the foil conductor. A version of a foil coil is proposed, with an excitation pole having a surface to oppositely install conical magnets, for instance.
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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
The invention relates to the field of electrical engineering, namely low-speed electric generators, and can be used in particular in wind turbines. Known low-speed magneto generator containing an annular series of stator windings on an iron core sheets or extruded iron powder and a corresponding annular series of permanent magnets of the rotor, in particular a synchronous machine with permanent magnetization for a sinusoidal voltage, the concentrated windings are made and not distributed in the slots, the cores with windings are interleaved with iron core without windings, so that every second iron core has a winding, the number of intervals between the cores is different from the number of poles, the number of intervals between the cores s and the number of poles p follows the expression |s-p|=2·m and s=12·n·m, where n and m are natural numbers, and the machine is designed for three-phase voltage with a series connection of adjacent coils to obtain ·m such groups per phase, which can be connected in series or parallel, EN 2234788 C2. The disadvantage of this generator is the low coefficient of performance (COP), since the winding in the annular row are located at a considerable distance from each other, and mo is UNT find magnets in the gap between the windings EMF in them not induced. Also known magneto-electric generator, the rotor is equipped with permanent magnets and the stator contains two parallel plates in the form of interconnected disks, between which is placed a winding; a stator has a magnetic circuit in the form of flat rings, RU 2168062. This solution has the same drawback as described above, the analogue of (EN 2234788 C2): low efficiency for the same reason. In addition, with the passage of permanent magnets of the rotor above the cores of the windings of the stator is mutual attraction of the permanent magnets of the rotor and of the cores of the windings of the stator (the so-called effect of "sticking" of the rotor), making it difficult to start the generator and creates a lot of noise during its operation. Some of the increase in the efficiency of the generator, reducing the starting torque and the noise level during operation is provided in a magneto generator, the rotor is equipped with permanent magnets and the stator contains two parallel plates, between which is placed an annular winding, the rotor is constructed of two mounted on a shaft parallel disks, each of which facing each other surfaces placed annular series of permanent magnets located in each row of equidistant, the polarity of the permanent magnets of each row alternates, with the pole of the permanent magnets of one row facing toward opposite poles of the permanent magnets of the other series, and an annular stator winding is made in the shape of an isosceles trapezoid, the sides of which are located radially relative to the axis of rotation of the rotor, and the ring sections of the windings at the bases of the trapezoid are bent in an arc, an annular winding pairs are inserted into each other, the distance 1 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, EN 94083 U1. This solution is accepted as the prototype of the present invention. In this device, the magnetic circuit includes a rotor disk and the permanent magnets of the rotor. However, the permanent magnets of one disk are located at a considerable distance from the permanent magnets of the other disk, which is determined by the dimensions of the windings of the stator. An air gap between the rows of permanent magnets represents a significant magnetic resistance, significantly reducing the magnetic field strength in the circuit, which reduces induced in the windings of the stator EMF and, accordingly, the efficiency of the generator. The present invention is to reduce the magnetic resistance in the magnetic circuit and, accordingly, increase the intensity of the magnetic field, the EMF induced in the windings of the stator, and the efficiency of the generator. According to the invention in a magneto-electric generator, the rotor of which the CSOs contains fixed on the shaft of the disk, hosting annular series of permanent magnets with alternating polarity, located equidistant relative to each other, and the stator contains two parallel plates, between which is placed a winding, the stator winding is placed on the U-shaped cores of electrical steel, which are mounted on the stator plates, the width Bcend of the U-shaped core is half the width B of the permanent magnet rotor, and the ends of the U-shaped cores of one plate facing towards the ends of the U-shaped cores of the other plate and offset them by a distance equal to half the width of the permanent magnet of the rotor, permanent magnets of the rotor are placed between the opposing ends of the U-shaped stator cores. 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 criterion of "Novelty". Thanks to the implementation of the distinguishing features of the invention is due to a new property object: significantly reduced air gaps in the magnetic circuit, since the gap between the ends of the U-shaped cores of the stator and the permanent magnets of the rotor may be minimal and depends almost only on the accuracy of manufacturing a rotor and stator of the generator. the thus, the features of the invention provide an important technical result, consisting in reducing the magnetic resistance in the magnetic circuit by minimizing air gaps, which allows to increase the intensity of a magnetic field, an EMF is induced in the windings, and, accordingly, to increase the efficiency of the generator. 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. These new properties of an object determine, according to the applicant, according to the invention, the criterion of "Inventive step". The invention is illustrated by drawings, which shows: figure 1 is a front view with a cutout portion of the casing; figure 2 - section a-a in figure 1; figure 3 - rotor in a perspective view; figure 4 is a U-shaped core with winding. Magnetoelectric generator includes a rotor comprising a disk 1, on which is placed an annular series of permanent magnets 2 of rectangular shape. The polarity of the permanent magnets 2 alternates (figure 1). The magnets 2 are equidistant relative to each other. The stator of the generator contains two parallel plates 3 and 4, made of a nonmagnetic material, in particular aluminum alloy, winding 5 of the stator is placed in the space between the Plaza is ins 3, 4 U-financially cores 6 from electrical steel, reinforced with screws on the plates 3, 4. The length L of the permanent magnet 2 is equal to the length Lcend of the U-shaped core 6. Width Bcend of the U-shaped core is equal to half the width B of the permanent magnet 2. The ends of the U-shaped cores mounted on the plate 3, facing towards the ends of the U-shaped cores mounted on the plate 4, and offset them by a distance equal to half the width B of the permanent magnet 2 of the rotor. Disc 1 rotor mounted on the shaft 7 of the rotor through the keyway. The shaft 7 is connected with the plates 3, 4 by means of bearings 8. Plates 3 and 4 are drawn together by pins 9, which provides rigidity. Permanent magnets 2 disposed between opposing ends of the U-shaped cores 6, tied bandage tape 11 of non-magnetic material and filled with epoxy compound 10; the design of the closed casing 12. The device operates as follows. During the rotation of the shaft 7 with the disc 1 to the ends of the U-shaped cores 6, alternately, suitable pole permanent magnets 2 of opposite polarity, which leads to the magnetization switching of the cores 6 and, respectively, to the change in the magnetic field, inducing an EMF in the coils of the windings 5. Because of the winding 5 (unlike the prototype) are not in the gap between the poles and the magnets 2 and the U-shaped cores, this gap may be minimal and depends only on the precision and rigidity of the whole construction. Thanks to the minimum value of the specified gap increases the magnetic field strength, reduced losses in the magnetic circuit increases the EMF induced in the windings 5, and, consequently, increases the efficiency of the generator. Since the ends of the U-shaped cores of one plate are offset from the ends of the other plate by a distance equal to half the width of the permanent magnet rotor, and the width of the U-shaped core half the width of the permanent magnet of the rotor is eliminated so-called effect of "sticking" of the rotor, complicating the generator and will produce excessive noise when it is working, because the magnetic field of the U-shaped cores 6 one series balances the impact on permanent magnets 2 of the magnetic field of the U-shaped cores of the other series. Thus, at any position of the rotor of the total component of the magnetic forces acting on the rotor is zero. For the manufacture of devices used construction materials and plant equipment. This circumstance, according to the applicant, allows to conclude that the invention conforms to the criterion "Industrial applicability". Magneto-electric generator, the rotor of which is about contains fixed on the shaft of the disk, hosting annular series of permanent magnets with alternating polarity, located equidistant relative to each other, and the stator contains two parallel plates, between which is placed a winding, wherein the stator winding is placed on the U-shaped cores of electrical steel, which are mounted on the stator plates, the width of thewithwith the end of the U-shaped core half width of the permanent magnet rotor, and the ends of the U-shaped cores of one plate facing towards the ends of the U-shaped cores of the other plate and offset them by a distance equal to half the width of the permanent magnet of the rotor, permanent magnets of the rotor are placed between the opposing ends of the U-shaped stator cores.
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