Permanent magnet machine |
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IPC classes for russian patent Permanent magnet machine (RU 2516270):
 
 Single-phase generator with annular armature winding / 2513986
Invention relates to electrical engineering and design of electrical machines, particularly single-phase alternating current generators. The technical result achieved by using the present invention is considerably high efficiency and improved electromechanical properties of single-phase generators. Said technical result is achieved due to that in a single-phase synchronous generator with an annular armature winding, consisting of an armature and an inductor, separated by an air gap, according to the invention the armature consists of two series-connected annular windings with semi-annular ferromagnetic cores, the nearest rectangular ends of which are attached by nonmagnetic bushings, and the inductor consists of a central cylindrical core mounted on a rotating shaft, wherein on diametrically opposite surfaces of the core there are two rod-shaped permanent magnets with concave like poles. During operation of the generator, turns of the annular windings are penetrated by induction field lines of one direction, originating from like poles of the permanent magnets of the inductor.
 Low-speed current generator / 2510565
Low-speed current generator has, mounted on a shaft, a rotor with a multipolar system of permanent magnets, a stator in form of a magnetic conductor and stator windings, leads of which are connected to corresponding rectifier units, a high-frequency pulse master generator and as many power correctors as there are rectifier units, each connected to the output of the corresponding rectifier unit and control inputs of which are connected to the output of the high-frequency pulse master generator, wherein the stator is single-sectional, and the number of poles of the rotor differs by one from the number of stator windings, the stator being cogless.
 Magnetic generator / 2507667
Magnetic generator comprises a non-magnetic body, in which cores of working windings of a stator and a rotor made of non-magnetic material are fixed and evenly distributed along the circumference. Cores of the working winding of the stator consist of an H-shaped magnetic conductor and two fixed DC electromagnets installed at its ends, and mobile DC electromagnets are fixed on the rotor. Poles of DC electromagnets of the rotor are aligned in turns as like and unlike towards the specified poles of DC electromagnets of the H-shaped magnetic conductor. During rotor rotation, as at least one DC electromagnet of the rotor aligned in a heteropolar manner approaches one DC electromagnet of the H-shaped magnetic conductor of the stator working winding, the magnetic flow between their poles is closed, and inducing of electromotive force on the working winding of the stator is provided by two other DC electromagnets of the rotor and stator aligned in a unipolar manner. Simultaneous interaction of DC electromagnets of the rotor and stator aligned in a unipolar and heteropolar manner creates an effect of magnetic balance.
 Rotor and method to manufacture rotor of electric machine / 2499342
Method to manufacture a rotor (14) is proposed for an electric machine (13), including the following stages of its realisation: a) manufacturing of a magnetic element (8) by means of adhesion of permanent magnets (1, 1', 1", 1'") to each other with the help of the first glue, at the same time each permanent magnet (1, 1', 1", 1'") has one side (2) with the magnetic north (N) and one side (3) with the magnetic south (S), at the same time permanent magnets (1, 1', 1", 1'") when adhered are arranged so that sides of the magnetic north (N) or sides of the magnetic south (S) form a common lower side (3, 3', 3", 3'") of the magnetic element (8), at the same time the first glue in the hardened condition has the solid consistency; b) adhesion of the lower side of the magnetic element (8) with the yoke (12) with the help of the second glue, at the same time the second glue in the hardened condition is soft and elastic, which eliminates break of the second glue as the temperature of expansion of the magnetic element (8) and the yoke (12) increases. At the same time the yoke (12) in the place where the magnetic element (8) is adhered to the yoke (12), has the soft and elastic layer (2).
 Machine with transverse magnetic flux (versions) / 2496213
Electric machine with transverse magnetic flux includes at least three phases, each of which is formed with core stator and windings. All the above phases are arranged in common housing. Parallel connected electric lines are branched from the above phases. There is also current converter from current source, which is formed with inductors connected in each of the above electric lines, switching circuit and switching capacitors. All the above components are placed in common housing. Two versions of the present invention are proposed.
 Electric motor / 2490772
Electric motor contains a rotor with pole permanent magnets magnetised radially and number of poles more than two and a stator consisting of a magnet core in the form of a hollow cylinder and a symmetrical three-phase biplane single-layer winding at inner surface with minimum gaps required for stator assembly between lateral surfaces of working areas of the coils. Working areas of the coils are located along the electric motor axis; at that number of coils in a phase circuit is selected as equal to the number of pole permanent magnets of the rotor.
 Electric machine / 2489788
Electric machine has a hermetically sealed housing, inside of which there is an interleaved stator core which rests on the housing of the electric machine by the external diameter. The stator core is provided with open grooves which accommodate spools. The spools of each stator groove are fixed by a wedge and a splined insert in contact with it, the cross-section of which can fix the back of the splined insert under the wedge of the groove. The surface of the back of the splined insert on its entire length is provided with a longitudinal channel which opens inside the housing of the electric machine, which is configured to feed compressed gas therein. The splined insert has radial holes, wherein the volumes of the splined inserts which protrude over the surface of the cavity of the stator core are merged into a tubular bushing, preferably composed of segments with formation of an inner surface of a cylindrical shape. Inside the housing, there are cylinder bushings, the cavity diameter of which is equal to the diameter of the tubular bushing. Between the ends of the stator core and the ends of the cylinder bushings facing them, there are stopper rings, the cavity of which is greater than the diameter of the cylindrical cavity of the stator core, provided with a shoulder which encircles part of the outer surface of the cylinder bushing. The stopper rings are made from nonmagnetic material and are fastened with the stator core. The cylinder bushings are mounted with possibility of radial displacement relative the longitudinal axis of the cylindrical cavity of the stator core, for which contacts of the bushings with the housing, an end shield and stopper rings are provided with seal rings, which can be elastically deformed radially and along the longitudinal axis of the stator core. The rotor has an inductor with a cylindrical outer surface, made from poles consisting of permanent magnets, nonmagnetic wedges and a shaft, the length of which exceeds that of the inductor. The ends of the inductor are rigidly fastened to end cylinder bushings made from nonmagnetic material, placed flush with the outer surface of the inductor, which is provided with a band, the outer surface of which has a cylindrical shape which corresponds on the diameter and roughness to the outer surface of the end cylinder bushings, wherein a gas bearing is formed by the gap between the inner cylindrical surfaces of segments of the splined inserts, cylinder bushings and the outer surface of end cylindrical inserts and the rotor band; furthermore, the axial bearing assembly of the electric machine has axial lobed gas bearings and a bearing disc.
 Generator / 2488211
In the suggested generator containing permanent magnets at rotor, fan and electronic module according to the invention in the area of radial surfaces of the stator end windings there is a centrifugal radial fan made in form of plates at the rotor, at that axes of magnets at the rotor are located at the angle towards the rotor axis and electronic module is located in space between the stator winding and rotor shaft.
 Permanent magnet motor / 2484573
Proposed permanent magnet motor consists of n equal modules, each of which includes a housing, a stator with phase windings, a rotor with constant magnets, which are magnetised in radial direction. Similar phase windings of adjacent modules are connected in series, housings and rotors of modules are connected to each other mechanically, and each module includes circular orientation elements of the stator with phase windings and rotors. At that, according to this invention, in each rotor, one half of magnets is offset relative to the other half in a circumfenertial direction by the half of the tooth division of stator tzs, and in adjacent modules, similar magnets of rotors are offset in a circumferential direction through value tzs/(2n).
 Reduction magnetoelectric machine with pole gear-type inductor / 2478250
Invention refers to design of contactless magnetoelectric machines with electromagnetic reduction, and can be used in direct drives, in automation systems, in mechanisms with high moments on the shaft and low rotation frequencies of the shaft, as well as high-frequency electric generators and synchronous frequency converters. The proposed reduction magnetoelectric machine with pole gear-type inductor includes stator, the armature core of which is charged and has salient poles, on inner surface of which elementary teeth are made, coil m-phase armature winding, each coil of which is arranged on the corresponding salient pole of the armature, one on each pole, and rotor containing an inductor with toothed poles with equal number of elementary teeth on each pole, which are symmetrically distributed along cylindrical surface; constant magnets magnetised in tangential direction are located between toothed poles of the inductor. When performing certain relations between the number of salient poles of the armature, number of elementary teeth on salient pole of the armature, number of salient armature poles in the phase, total number of armature teeth, number of toothed poles of the inductor, total number of inductor teeth, number of elementary teeth on toothed pole of the inductor and number of phases of m-phase armature winding of reduction magnetoelectric machine with pole toothed inductor, the method is implemented.
 Single-phase asynchronous motor / 2516250
Invention is related to the field of electric engineering, namely to single-phase asynchronous motors with a starting winding, and can be used for electric tools and household appliances, for example in refrigerant compressors subject to essential shaft load at start-up and common operating conditions at the mains low voltage. In a single-phase asynchronous motor containing a rotor and a stator with slots with placed main and auxiliary windings with magnet axes shift in regard to each other per a half of polar pitch according to the invention in the area of stator slots located in the areas of the main winding magnet axes there are through nonmagnetic gaps filled with air or nonmagnetic inserts.
 Stator of rotating electric machine with constant excitation / 2516246
In the middle of the first coil group (10a) there is a middle tooth (8a), which has the first MB width of the middle tooth. A stator (5) has the second group (10b) of coils. The first and second groups of coils are placed in the circumferential direction (U), directly in sequence one after another. Between the first and second groups of coils there is the first edge tooth (9), which has the first RB width of the edge tooth. In essence the first RB width of the edge tooth is equal to RB=a·ZB, and the first MB width of the middle tooth is equal to MB=(2-a)·ZB. The coefficient a is bigger than 0 and less than 1.
 Electric machine with axial off-centre coolant flow and respective method / 2516234
Invention is related to the field of electric machines. The electric machine has at least one radial cooling groove (16) and axial cooling channels. The first cooling channels (18) with their central axis pass at another radial height in regard to a rotor axis (11) in comparison with the second cooling channels (19). In at least one radial cooling groove (16) there is a spacer (29) by which the first coolant flow (28) from the first cooling channels (18) can be directed to one of the second cooling channels (19). Due to that the second partial packet (T2) in the flow direction can be supplied with colder air when it passes through the first partial packet (T1) in the cold area, for example, close to the shaft.
 Permanent magnet, method of its production, rotor and motor with internal permanent magnet (ipm) / 2516005
Permanent magnet production process comprises the steps that follow. a) Fabrication of permanent magnet (1). b) Cracking of permanent magnet (1) to get two or more separate parts (13). c) Recovery of permanent magnet (1) by jointing rupture surfaces of separate adjacent parts (13) together.
 Magnetoelectric engine / 2515999
In a magnetoelectric engine rotor contains a disc fixed at a shaft whereat a ring-shaped line of permanent magnets with alternating polarity is mounted. A stator contains two parallel plates and the stator windings are placed between them. The stator plates are equipped with cores of electric steel, at which the stator windings are placed. The cores are made as two rings and there are protrusions at their surfaces faced to each other. Width of the protrusion B is equal to half of the permanent magnet C width. Protrusions of one core are off-centred in regard to protrusions of the other core to the half of the permanent magnet C width. The rotor disc is placed between the cores of the stator windings.
 Magnetoelectric generator / 2515998
In a magnetoelectric generator a rotor contains a disc fixed at a shaft whereat a ring-shaped line of permanent magnets with alternating polarity is mounted. The magnets are regularly spaced in regard to each other. A stator contains two parallel plates and the stator windings are placed between them at cores of electric steel, which are fixed at the stator plates. The cores are made as two rings and there are protrusions at their surfaces faced to each other. Width of the protrusion B is equal to half of the permanent magnet C width. Protrusions of one core are off-centred in regard to protrusions of the other core to the half of the permanent magnet C width.
 Liquid-cooling system for electric machinery stators at autonomous objects / 2513042
According to the invention the suggested inductor-type generator containing the front and rear covers, a stator with operating winding, an excitation source and a rotor with a shaft, is equipped additionally with a ferromagnetic ring, closing elements, a star-shaped magnet core with an opening and a non-ferrous insert; at that the ferromagnetic ring is inserted tightly with its first lateral side in the stator zone free of end-connectors, at the other side of the ferromagnetic ring there are installed closing elements connected to sprocket teeth and the sprocket itself is connected to the rear cover by the non-ferrous insert and the rotor with the shaft is placed in a central opening of the sprocket.
 Modular electromagnetic device with reversible generator-motor operation / 2510559
Modular electromagnetic device has a stator and a rotor rotating between facing surfaces of the stator and bearing a plurality of magnets distributed with alternate orientations in a substantially annular pattern. The stator comprises at least one pair of magnetic yokes symmetrically located at both sides of the rotor. Each yoke has a pair of projecting arms extending towards the magnets and bearing a respective coil for receiving electric power from or supply of electric power to the electromagnetic device. Each yoke is individually mounted on its own support equipped with adjusting units arranged to adjust the yoke position relative to the oppositely lying magnets. The yoke forms, together with its coils, its support, its adjusting units and measuring and control means controlling the yoke adjustment, an elementary stator cell that can be replicated to form single-phase or multiphase modules.
 Modular electric machine / 2510121
Modular electric machine comprises electromagnetic modules, which consist of two U-shaped cores arranged with their ends to each other so that ferromagnetic inserts on the rotor installed between two cores match in the projection with ends of each pair of two U-shaped cores. Electromagnetic modules are fixed along the circumference without radial displacement relative to each other, windings of the anchor are wound separately on each rod of the U-shaped core, which are arranged further from the machine shaft, and the excitation winding is made toroidal, common for all electromagnetic modules of each fixed part of the stator, as a result of which rods of U-shaped cores that are close to the machine shaft are arranged tightly to each other, which results in maximum reduction of distance between electromagnetic modules. At the same time anchor windings of one phase displaced by a pole division are connected as matching in series.
 Single-phase induction motor / 2510120
Single-phase induction motor comprises a rotor and a stator with slots, where main and auxiliary windings are installed, forming nonsalient poles with displacement of magnetic axes relative to each other by half of a pole division. In the stator yoke in the field of slots arranged in zones of magnetic axes of the main winding, there are non-magnetic gaps with formation of saturation bridges.
 Rotor magnetic system / 2244370
Rotor magnetic system has more than two magnetically permeable steel laminations with pole horns formed by prismatic tangentially magnetized N-S permanent magnets placed inside laminated stack; inner and outer diameters of laminations are uninterrupted and rectangular prismatic magnets are installed inside them so that distance over outer arc between external planes of two adjacent magnets of unlike-polarity poles is shorter than that over internal arc between same planes; magnets do not contact one another and have at least one projection on inner diameter for coupling with rotor shaft.
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FIELD: electricity. SUBSTANCE: permanent magnet machine contains a fixed stator and a movable rotor made of non-magnet material, in the stator frame there are U-shaped imbricated cores with windings, the rotor contains operating components made as the permanent magnets placed in the openings in the form of slots with size l and l1, at that the number of slots m is equal to the number of the permanent magnets. At that the stator frame of the permanent magnet machine is made as a hollow cylinder with at least 3 groups of U-shaped imbricated cores with windings placed at its inner surface. Each group contains at least 3 U-shaped imbricated cores with windings interconnected in series and shifted in regard to each other per the distance L. The rotor is placed inside the stator and consists of a hollow cylinder with the permanent magnets placed in its slots and shifted in regard to each other per the angle of α=120°, poles of the permanent magnets protrude the limits of the hollow cylinder per a value Δ: Δ=d-l', where Δ is a value of the magnet poles protrusion outside the limits of the hollow cylinder; d is a circle diameter defined by the inner diameter of the stator and sizes of the magnet core; l' is a value of the air gap between the magnet core and the magnet. EFFECT: improving efficiency of the permanent magnet machine with simultaneous reducing of pulling force in the axial direction and simplifying of the design, providing maximum power factor at the disc-type design of the machine. 3 dwg
The invention relates to power engineering, namely motors and generators containing in the design of permanent magnets, namely the magnetoelectric generators of electricity to the presence of permanent magnets. Known disk electric machine [Plates L.M. Synchronous machine self-contained power sources. - M.: Energy, 1980, p.76-78], which represents the end duhaney generator, having in its composition a stator housing consisting of two disks in contact on the side surface. In the case of the stator is enclosed three-phase winding and mounted on supports (bearings) shaft with rotor in the form of a disc. On the rotor installed work items from magnetospirillum materials (permanent magnets). The machine is equipped with a traditional cooling system. The closest device to the same destination on the totality of symptoms is an electric machine disk [patent # 116714]. Magnetoelectricity disk machine consists of a stator and rotor that is made in the form of discs and placed on the shaft. The stator consists of at least 4 disks and the rotor 2 at least 2 drives and made of nonmagnetic material. On the stator rigidly to the diameter d of the set n - "P"-shaped laminated magnetic circuit 6 with the windings connected in parallel to each other and evenly distribution of Alannah around the circumference of the stator disk. "P"-shaped laminated cores with windings n1the stator is placed on the radius d. Each of the rotary disk 2 holes m in the form of rectangular slots 1, 11which posted operating parts (magnets) arranged around the circumference of the rotor diameter d, equidistant from each other and from the axis of the shaft, wherein the number of slots m is equal to the number n of poles "P"-shaped laminated magnetic circuit of the stator (m=n)and the size of the slots l, l1depends on the size of the working bodies (magnets). Geometrical dimensions of the pole cores 6 and poles of permanent magnets are the same. In the known construction in view of the small value of the air gap between the magnetic core and the permanent magnets will inevitably have significant traction in the axial direction of the disk of the machine, this increases friction during rotation and the possibility of deformation of the rotor, which significantly reduces the efficiency of the magnetic disk of the machine as a whole. This disadvantage is eliminated only when accurate positioning of the rotor between the stator discs at the same distance from them, and the displacement of the disk rotor with permanent magnets from the center will lead to the conclusion of the equilibrium magnetic system. The task of the invention is to simplify the design, can reduce tagonoura in the axial direction, to increase the efficiency of the magnetic disk of the machine as a whole and to ensure the maximum value of the power factor magnetic disk of the machine. This technical result is achieved in that the magneto-electric machine having in its composition a fixed stator and a movable rotor made of a nonmagnetic material, in the case of stationary stator is made of "P"-shaped laminated cores with windings, a movable rotor contains work items that are made in the form of permanent magnets and arranged in the openings, in the form of slots dimensions l and l1and the number of slots m is equal to the number of permanent magnets. Additionally, in the case of stationary stator magneto-electric machine is made in the form of a hollow cylinder on the inner surface of which is placed at least 3 groups of U-shaped laminated magnetic circuit with the windings. Each of which contains at least 3 of the U-shaped laminated cores with windings connected in series with each other and offset from each other by the distance L. the Rotor located inside the stator and comprises a hollow cylinder permanent magnets which are displaced relative to each other at an angle α=120°, also poles of permanent magnets placed in the slots that are outside of the hollow cylinder is and the value of Δ: Δ=d-l', where Δ is the magnitude of the projection of the poles of the magnets outside of the hollow cylinder; d - diameter of a circle defined by the inner diameter of the stator and the size of the magnetic core; l' - value of the air gap between the magnet core and the magnet. 1 shows an external view of a magneto-electric machine. Figure 2 presents a view of the magneto-electric machine. Figure 3 presents the design of a rotor of the magneto-electric machine. The proposed magneto-electric machine, having in its composition a stator and a rotor mounted on the shaft, made of non-magnetic material, in the case of stationary stator is made of "P"-shaped laminated cores with windings, a movable rotor contains work items that are made in the form of permanent magnets and arranged in the openings, in the form of slots dimensions l and l1moreover , the number and size of the slots l and l1depends on the number and size of the magnets. A housing fixed to the stator consists of a hollow cylinder 1 made of durable insulating non-magnetic material on the inner surface of which is placed at least 3 groups of 3 U-shaped laminated cores 2 with windings 3, connected in series with each other, and each group is shifted relative to the other, a distance L. the Rotor is the inside of the stator and comprises a hollow cylinder 4, made from non-magnetic material having a slot offset from each other by the angle α=120°. In the slots are permanent magnets 5, the poles of the magnets protrude from the hollow cylinder by the amount Δ. To ensure smooth rotation of the rotor Δ=d-l' where Δ is the magnitude of the projection of the poles of the magnets outside of the hollow cylinder; d - diameter of a circle defined by the inner diameter of the stator and the size of the magnetic core; l' - value of the air gap between the magnet core and the magnet. Magneto-electric machine operates as follows. During the rotation of the shaft (Fig. not shown) rotates the rotor 3 mounted in the slots of the permanent magnets 5, made of magnetic alloys, for example, rare earth-based alloys, Nd, Fe, B, Cm, Co. Permanent magnets are displaced by angle α=120°, which reduces the tractive resistance torque during the passage of the permanent magnet 5 under the pole of the magnetic circuit 2. When the rotor 4 in the zone of poles "P"-shaped magnetic circuits of the stator electromagnetic field is abruptly variable in nature, resulting in pulses of alternating current in each winding of the rotor 4. Laminated "P"-shaped yokes allow to significantly reduce the eddy-current loss at the ends of the magnetic core is in, thereby increasing the efficiency of the magnetic disk of the machine as a whole. The proposed design reduces the pulling force in the axial direction, thereby to increase the efficiency of the magnetic disk by the machine that has the degree is designed to provide maximum power coefficient magnetoelectric machine. Magneto-electric machine, having in its composition a fixed stator and a movable rotor made of a nonmagnetic material, in the case of stationary stator is made of "P"-shaped laminated cores with windings, a movable rotor contains work items that are made in the form of permanent magnets and located in apertures in the form of slots dimensions l and l1,moreover, the number of slots m equals the number of poles n "N"-shaped laminated cores (m=n), and the number and size of the slots l and l1depends on the number and size of the magnets, characterized in that the housing is fixed to the stator is made in the form of a hollow cylinder, the inner surface of which is placed at least 3 groups of "N"-shaped laminated cores with windings, each group containing at least 3 "P"-shaped laminated cores with windings connected in series with each other, and each group is shifted relative to the other ináaádifferent L, a rotor located inside the stator and consists of a hollow cylinder, the permanent magnets which are displaced relative to each other at an angle α=120°, in addition, the poles of the permanent magnets placed in the slots that are outside of the hollow cylinder on the value of Δ:
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