Non-contact electric machine with axial excitation

FIELD: electricity.

SUBSTANCE: invention refers to the design of non-contact synchronous electric machines with axial excitation and can be used in wide range of frequencies of machine shaft rotation (from units of revolutions per minute to several tens of thousand revolutions per minute) in automation systems, independent electric equipment systems, in military, space engineering, on aviation and automobile transport, as traction controlled and non-controlled electric actuators, wind-driven generators, multiphase synchronous motors and high-frequency synchronous electric AC generators, multiphase generators of frequency converters (including three-phase systems), as well as at rectification of output variable voltage and current of generators by means of semiconductor rectifying devices and with possibility of using smoothing filters to reduce fluctuations of output parameters - as DC (rectified current) power supply sources. Stator of non-contact electric machine with axial excitation includes odd and even armature cores with salient poles of armature, which represent laminated packs from insulated electrotechnical steel plates with high magnetic permeability and fixed in soft magnetic housing; the number of armature cores - not less than two, on salient poles of armature there concentrated is coil multi-phase armature winding, each coil of which envelopes in axial direction one of salient poles of armature of each armature core; between armature cores there located are ring-shaped coils of inductor excitation winding, the axes of which coincide in axial direction with machine shaft axis, connected to each other in magnetic opposite ratio, of ring-shaped coils of inductor excitation winding is one less than the number of armature cores. Rotor without winding includes non-magnetic shaft with soft magnetic bushing on which there coaxially located are odd and even rotor magnetic conductors with pole projections, which are represented with laminated packs and consist of insulated electrotechnical steel plates with high magnetic permeability; the number of rotor magnetic conductors is equal to the number of armature cores; odd and even rotor magnetic conductors are located relative to the appropriate odd and even armature cores and have the same active length in axial direction; even rotor magnetic conductors are offset relative to odd magnetic conductors in tangential direction through the half of pole pitch of rotor magnetic conductor. At that, certain ratios are fulfilled between the number of salient armature poles, number of phases of multi-phase coil winding of armature, number of salient poles of armature in phase and number of pole projections of each magnetic conductor of the rotor.

EFFECT: obtaining reliable design appropriate to the material of multi-phase non-contact electric machine with axial excitation with high energy properties and operating characteristics at wide range of shaft rotation frequencies and with various ratio of active length and bore diameter of machine stator.

18 cl, 5 dwg

 

The invention relates to the field of electrical engineering, in particular to a high-torque electric motors, electric drives and high-frequency generators, concerns the design of contactless synchronous electric machines with axial excitation and can be used in a wide range of frequencies of rotation of the shaft of the machine (from units of revolutions per minute to several tens of thousands rpm) in automation systems, Autonomous systems, electrical, military, space technology, aviation and road transport, as a traction managed and unmanaged drives, wind turbines, multi-phase synchronous electric motors, multi-phase, high frequency synchronous electric alternators and multiphase generators converters frequency (including three-phase system), as well as by straightening the output AC voltage and current generators using semiconductor rectifying devices and the possibility of applying a smoothing filter to reduce the ripple of the output parameters as sources of DC power (rectified) current.

Known alternators with permanent magnets (Vasilopoulou, FLA. Electric generators with permanent magnets. - M.: Energoatomizdat, 1988. Page 2346.), with a magnetic system with rotating and stationary magnets. On the constructive implementation of the rotors with permanent magnets can be divided into the following groups:

- with a cylindrical magnet in the form of rings, magnetized in the radial direction;

- type the asterisk with salient poles without pole shoes and pole shoes;

- type "star" with a prismatic magnets and pole shoes;

collector with prismatic magnets and tangential magnetization;

- claw with a cylindrical permanent magnet magnetized in the axial direction.

For magnetic systems with rotating magnets is also a system for the mechanical type. Magnetic non-contact system of generators with fixed permanent magnets are of the following types: vnesheconom magnetic circuit, inductor and switch types. In addition, the known magnetic systems and the design of alternators combined excitation, in which the magnetic worker thread is created by the joint action of permanent magnets and electromagnetic field windings when applying thereon a constant electric current. The disadvantages of magnetic systems and structures of alternating current generators described on page the medium 25, 2630, 33, 36, 40, 43, 44, 46 the specified source.

Known single-phase electric generator (Patent RU, 2392724 C1 IPC H02K 19/22, H02K 19/16, H02K 19/36, author Chernukhin VM)that contains the stator with the laminated armature core with salient poles and coil single-phase winding of the armature coils which are placed on the respective salient poles of the armature, one for each pole, single-phase coil windings of the armature are connected according to the magnetic relation, and the rotor inductor with odd and even cores with the same number of salient poles on each core, the cores of the inductor is made in the form of packets, recruited from the isolated electrical sheets steel with high magnetic permeability, the number of cores of the inductor at least two active length of the far inductor cores in the axial direction are the same, even the cores of the inductor is displaced relative to the odd cores of the inductor in the tangential direction by half the pole dividing the core of the inductor, the inductor cores pressed on the sleeve, which is a magnetic core of the inductor is made of soft magnetic steel with high magnetic permeability and mounted on non-magnetic rotor shaft, expressed pole anchors and expressed pole inductor facing each other and RA is divided by an air gap, between the cores of the inductor is the excitation winding of the inductor is made in the form of covering the magnetic core of the inductor ring-shaped coils, the number of which is one less than the number of cores of the inductor, the annular coil winding of the inductor when there is more than one are connected so that during the flow through them is constant (rectified) current pole of the odd cores of the inductor is magnetized by the formed magnetic pole of one polarity and the pole of the even cores of the inductor is magnetized by the formed magnetic pole of the other polarity, the electric connection of the excitation winding of the inductor with DC (rectified) voltage via slip rings and brushes, the number of clearly expressed poles of the armature is determined by the equality: Z1P=2k, the number of salient poles of each core of the inductor is determined by the equality: Z2P=k, where k=2, 3, 4, 5, ... - positive integer, starting with two, the width of the pole arc of the salient poles of the armature in the angular dimension is determined by the expression b1P=(0,761,0)t1Pwidth pole arc salient poles of each core inductor in the angular dimension is determined by the expression: b2P=(0,380,5)t2Pwhile t1P=360/Z1Pis own the th pole division of the salient poles of the armature in the angular dimension, t2P=360/Z2Pis a pole division of the salient poles of each core inductor in the angular dimension. The disadvantage of analog is the limited application, as it can only be used as irreversible electrical machines - generator and generate only single-phase alternating electric current. In addition, the electrical connection of the excitation winding of the inductor is described generator with DC (rectified) voltage via slip rings and brushes, which reduces the reliability of the generator.

Famous adopted for the prototype contactless induction brushless electric machine with electromagnetic excitation (Patent RU, 2277284 C2, IPC H02K 19/10, H02K 29/00, authors: ALEXANDER Demyanenko; Zherdev, I.A.; Kozachenko V.F.; Rusakov A.M.; Esterov VN), comprising a housing defined therein a laminated stack of electrical steel sheets packages stator, the number of which is divisible by two, with grooves in them for laying phase windings, the phase winding placed in the slots of the wound stator so that their coils in the slot parts of the winding parallel to the longitudinal axis of the machine and one coil covers all teeth wound stator located opposite each other, the excitation winding with a longitudinal axis parallel to the longitudinal axis of the machine, located on the stator between acetami stator, metal non-magnetic shaft of magnetic metal on it, running gear packages rotor laminated plates of soft magnetic steel, the number of which equals the number of packets of the stator, two caps with bearings, the total number of phase windings of more than three and the number is a multiple of three, with each three-phase winding are independent zero point and between adjacent phases of different triads have the angle of phase shift, while the ratio of the number of stator teeth Zarticlethe number of teeth of the rotor Zpexpressed as a fraction, in which the number of teeth of the rotor is a simple number, starting with five 5, 7, 11, 13, 17, ... the disadvantage of the prototype is the implementation of a number of packets of the stator only in multiples of two phase windings of more than three and only multiples of three, and the number of teeth of the rotor are the only Prime numbers, starting with five. This reduces the possible design of this technical devices and the possibility of its use.

The aim of the present invention is to provide a construction of the multi-phase contactless electrical machines with axial electromagnetic excitation, the active portion of the inductor which is presented in the form of annular coils located on the stator, with a high energy performance with wide frequency range, shaft rotation (from diniconazole per minute to several tens of thousands of revolutions per minute).

The present invention is the communication necessary for the function of the machine and get the best energy performance, between the number of salient poles of the armature, the number of phases m-phase armature coil winding, the number of salient poles of the armature in the phase and the number of pole protrusions of each of the magnetic rotor, and the development of the algorithm for the construction of a wiring diagram m-phase coil winding of the armature and field winding of the inductor contactless electrical machines with axial excitation.

The technical result of the present invention to provide a reliable and manufacturable designs multi-phase contactless electrical machines with axial excitation with high energy performance and operational characteristics under a wide range of frequencies of rotation of the shaft and with different ratio of active length and bore diameter of the stator of the machine.

A distinctive feature of the present invention from most used electric cars is the design of the stator, which consists of an armature cores with salient poles and concentrated on them multiphase coil of the armature winding and the active portion of the inductor in the form of an annular coil winding of the inductor, and besom the exact inactive rotor, that allows the machine is non-invasive and capable of working at very high speed shaft and a high electromagnetic loads.

In order to achieve the objectives and the technical result of the invention a contactless electric machine with axial excitation contains a stator with odd and even cores anchor, made of laminated packages of isolated sheets of electrical steel with high magnetic permeability and fixed in the magnetic case, the number of cores anchors not less than two, each laminated stack has the same number of evenly distributed around the circumference of the salient poles of the armature, even the cores of the armature are relatively odd in the axial direction without displacement in the tangential direction on the distinct poles of the armature concentrated reel multiphase armature winding, each coil of which covers one of each against other in the axial direction is clearly expressed pole anchors of each of the armature core, between the armature cores are annular coil winding of the inductor, the axis of which in the axial direction coincident with the axis of the shaft of the machine, interconnected counter in magnetic relation to the number of annular coils of the winding, the excitation is Oia inductor to one less than the number of cores of the armature, and winding rotor with a non-magnetic shaft and impaled on his soft magnetic sleeve, which are coaxially arranged odd and even with the pole protrusions of the magnetic rotor is made of laminated packages of isolated sheets of electrical steel with high magnetic permeability, the number of laminations of the rotor is equal to the number of cores of the armature, the odd-numbered and even-numbered magnetic rotor positioned relative to the respective odd and even cores of the armature and are equal to the active length in the axial direction, the active length of the extreme magnetic rotor in the axial direction are the same, in the presence of magnetic rotor more than two active length of the magnetic rotor in the axial direction between the extreme core two times more active length extreme magnetic rotor, even the magnetic rotor is displaced relative to the odd cores in the tangential direction by half the pole division of the magnetic rotor.

In accordance with the present invention for the health contactless electrical machines with axial excitation and get the best energy performance when the maximum specific point on the shaft between the number of salient poles of the armature Z1Pthe number of phases m is aznoe coil armature winding m=3, 4, 5, 6, ..., the number of salient poles of the armature in the phase of Z1mand the number of pole protrusions of each of the magnetic rotor Z2Pa connection is established, which is expressed by equations (1) and (2):

moreover, when m=3, 5, 7, 9, ... - the number of salient poles of the armature in the phase of Z1m=1, 2, 3, 4, ..., when m=4, 6, 8, 10, ... - the number of salient poles of the armature in the phase of Z1m=2, 4, 6, 8, ..., the width of the pole arc of the salient poles of the armature in the angular dimension is in the range b1P=(2/31,0)t1Pwidth pole arc pole protrusions of each of the magnetic rotor in the angular dimension is in the range b2P=(1/31,2)t2Pwhile t1Pand t2Prepresent the pole dividing the armature and each of the magnetic rotor, respectively.

The algorithm wiring diagrams armature winding is simple: the coil in the phase can be interconnected in series, parallel, or mixed, but in magnetic relation with the odd number of phases must be connected to a counter, and when there is an even number of phases according in order, starting with the coil phase, which belongs to the beginning of the phase, the early phases of the armature winding of an odd number of phases may belong to any of the coils in the respective phase, and when there is an even number of phases of the coils in the respective phases, focused onfirst according to the numbering of poles Z 1P/Z1msalient poles of the armature phase windings of the armature can be interconnected in a star" or "polygon". The annular coil winding of the inductor when there is more than one can be interconnected in series or in parallel and at even numbers, starting with four, mixed, but in any case must be interconnected counter in magnetic relation. The excitation winding of the inductor can be powered constant (rectified) by electric current or by connecting it directly to a DC voltage source or by connecting it through m-phase diode bridge to the output ends of the armature winding (in the mode of operation of the machine, an electric motor).

The invention is illustrated by figures:

figure 1 - General view with a longitudinal section of a contactless electrical machines with axial excitation with four annular coil winding of the inductor;

figure 2 - cross section of a contactless electrical machines with axial excitation;

figure 3 - example of circuit connection of the coils of the 3-phase armature winding, the phase of which is connected in a polygon, with the excitation winding of the inductor is connected directly to the DC voltage source;

figure 4 is an example of the implementation of the scheme with the unity of the coils of the 3-phase armature winding during operation of the machine motor, when the excitation winding of the inductor is connected through m-phase diode bridge to the output ends of the armature winding;

5 is an example implementation of the circuit connections of the coils of the 3-phase armature winding during operation of the machine by the generator when it is used as a power source constant (rectified) by an electric current. As a smoothing filter in the figure shows the capacitor. Figure 25 a letter marked coil of the multiphase armature winding located on the respective salient poles of the armature. For example, B3 is a coil phase "B", located on the third pole of the armature. The numbering of poles made in the direction of counterclockwise.

In the present invention are possible in various designs multi-phase contactless electrical machines with axial excitation:

- with an external stator and an internal rotor;

- with an internal stator and an external rotor.

Consider the design performance of the multi-phase contactless electrical machines with axial excitation with an external stator and an internal rotor (figure 1, figure 2). Paramagnetically high frequency odd 11 and even 2 cores anchors made of laminated packages of isolated sheets of electrical steel with high magnetic permeability and enshrined in the soft magnetic metal is at enclosure 1. The housing material can be, for example, steel with high magnetic permeability or cast iron. Laminated packages cores anchors have expressed pole 3 anchors, which focuses reel multiphase armature winding. Each coil winding 4 covers one of being against each other in the axial direction Express each pole of the armature core. Coil 4 armature windings are made of copper winding wire or winding copper bus. Between the armature cores are annular coil 10 winding of the inductor, the axis of which in the axial direction coincident with the axis of the shaft 5. The annular coil 10 winding of the inductor are made of coiled copper wire or copper winding bus. They are wound onto the winding machines for insulating elektroprovodyashchie frames and along with them are installed between the armature cores in the Assembly machine. To create a constant magnetic flux inductor, unipolar mud through the working air gap, the annular coil 10 winding of the inductor is connected between a counter in magnetic relation. The rotor of the machine in order to prevent "bearing currents, adversely affect the performance and life of the bearing 12 has a non-magnetic shaft 5, the implementation of the tion, for example, from non-magnetic steel or titanium, which planted soft magnetic sleeve 6, which is made of a material with high magnetic permeability, for example of steel 10. On the sleeve 6 are coaxially arranged odd 7 and even 8 with pin lugs 9 of the magnetic circuit of the rotor, a laminated packages of isolated sheets of electrical steel with high magnetic permeability, the number of laminations of the rotor is equal to the number of cores anchors, odd 7 and even 8 cores of the rotor through the shaft 5, the bearing 12 and the bearing shields 13 are positioned relative to the odd-numbered 11 and even 2 cores anchors and have equal active length in the axial direction, the active length of the extreme magnetic rotor in the axial direction are the same, in the presence of magnetic rotor more than two active length of the magnetic rotor in the axial direction, located between the extreme magnetic circuits, two times more active length extreme magnetic rotor, even 8 cores of the rotor is offset odd 7 of the magnetic rotor in the tangential direction by half the pole division of the magnetic rotor.

Contactless electrical machine with axial excitation can work in the mode of unmanaged and managed sync the frame of the engine, in controlled stepper motor mode controlled DC motor with independent or sequential excitation, as well as synchronous m-phase of the alternating voltage. In addition, by straightening the AC output voltage and electric current contactless electric machine in the mode of its operation generator using semiconductor rectifying devices and the possibility of applying a smoothing filter to reduce the ripple of the output electric parameters it can be used as a power source constant (rectified) by an electric current. In this case, the output ends of the armature winding are connected to the input of the semiconductor rectifier device (figure 5).

Consider motor mode (14). When applying to the annular coil 10 winding inductor DC voltage from the power source and under the influence of this voltage on the coil 10 will be constant electric current, creating a constant magnetic field of the inductor with a constant MDS inductor and unipolar constant magnetic flux, mud through the soft magnetic body 1 of the stator yoke and expressed pole 3 odd 11 and even 2 cores anchors, working air gap, the field is by the protrusions 9 and the yoke 7 odd and even 8 cores of the rotor and the magnetic sleeve 6 of the rotor. When applying for the m-phase armature winding of the AC voltage from the m-phase of the power source and under the influence of this voltage in the armature winding will be alternating electric current, creating alternating rotating magnetic field of the anchor variable in time MDS anchors and variable in time rotor flux. Due to the interaction of the alternating magnetic field of the armature with a permanent magnetic field of the inductor to the rotor of the applied unidirectional during the entire operating time of the electric motor torque. According to the invention, in one period, changes in the magnetic field of the armature, the rotor moves to one pole division of the magnetic rotor. It should be noted that in this construction the rotor rotates in the direction opposite to the direction of rotation of the magnetic field of the armature.

Consider the generating mode (13, figure 5). When applying to the annular coil 10 winding inductor DC voltage from the power source and under the influence of this voltage on the coil 10 will be constant electric current, creating a constant magnetic field of the inductor with a constant MDS inductor and unipolar constant magnetic flux, mud through the soft magnetic stator housing 1 odd 11 and even 2 cores anchors, work in zduny gap, odd 7 and even 8, the magnetic rotor and the magnetic sleeve 6 of the rotor. During rotation of the rotor by a third-party source point, the magnetic flux of the inductor will maintain its direction in the soft magnetic body 1 of the stator and the magnetic sleeve 6 of the rotor, pulsing in distinct poles 3 odd 11 and even 2 cores of the armature from the pole protrusions 9 odd 7 and even 8 cores of the rotor. This AC (pulsed) magnetic flux will be induced in the coils 4 armature winding of a variable in time, EDS. It should be noted that if more than one phase coil 4 value induced in each coil phase armature winding of the variable EMF at any point in time will be the same, and the variable EMF phase armature winding is equal to the algebraic sum inductively EMF in each coil 4 phases due to the connection of the coils in phase, based on the algorithm wiring diagrams armature winding. If the external circuit load circuit is closed, in a multiphase armature winding will be alternating electric current, the electric power will be given to the consumer. Frequency f (Hz) variable EMF multiphase armature winding associated with the frequency of rotation n (rpm) of the rotor and is determined by the equation: f=nZ2P/60.

1. Contactless electrical machine with axial excitation, containing the stator with kreplennymi in soft magnetic body laminated sheets of electrical steel packages, the field winding located on the stator between the wound stator, and a rotor with a metal non-magnetic shaft and a sleeve of magnetic material installed laminated packages rotor therein, the number of which equals the number of packets of the stator, characterized in that the housing is fixed odd and even cores of the armature, the number of cores anchors not less than two, each armature core has a laminated stack of isolated sheets of electrical steel with high magnetic permeability with the same number of uniformly distributed around the circumference of the salient poles of the armature, even the cores of the armature are relatively odd in the axial direction without displacement in the tangential direction, obviously expressed poles of the armature concentrated reel multiphase armature winding, each coil of which covers one of the located opposite each other in the axial direction is clearly expressed pole anchors each armature core located between the cores of the annular armature coil winding of the inductor, the axis of which in the axial direction coincident with the axis of the shaft of the machine, are connected opposite in magnetic relation to the number of annular coils winding of the inductor to one less than the number of cores of the armature on magnetoresistance, mounted on non-magnetic winding shaft of the rotor are coaxially arranged odd and even with the pole protrusions of the magnetic rotor is made of laminated packages of isolated sheets of electrical steel with high magnetic permeability, the odd-numbered and even-numbered magnetic rotor positioned relative to the respective odd and even cores of the armature and are equal to the active length in the axial direction, the active length of the extreme magnetic rotor in the axial direction are the same, in the presence of magnetic rotor more than two active length of the magnetic rotor in the axial direction between the extreme magnetic circuits, two times more active length extreme magnetic rotor, even the magnetic rotor is displaced relative to the odd cores in the tangential direction by half the pole division of the magnetic circuit of the rotor, between the number of salient poles of the armature Z1Pthe number of phases m-phase armature coil winding m=3, 4, 5, 6, ..., the number of salient poles of the armature in the phase of Z1mand the number of pole protrusions of each of the magnetic rotor Z2Pa connection is established, which is expressed by equations (1) and (2):


moreover, when m=3, 5, 7, 9, ... - the number expressed is olasov anchor in the phase of Z 1m=1, 2, 3, 4, ..., when m=4, 6, 8, 10, ... - the number of salient poles of the armature in the phase of Z1m=2, 4, 6, 8, ..., the width of the pole arc of the salient poles of the armature in the angular dimension is in the range b1P=(2/31,0)t1Pwidth pole arc pole protrusions of each of the magnetic rotor in the angular dimension is in the range b2P=(1/31/2)t2Pwhile t1Pand t2Prepresent the pole dividing the armature and each of the magnetic rotor, respectively.

2. Contactless electrical machine with axial excitation according to claim 1, characterized in that it is made with an external stator and an internal rotor.

3. Contactless electrical machine with axial excitation according to claim 1, characterized in that it is made with an internal stator and an external rotor.

4. Contactless electrical machine with axial excitation according to claim 1, characterized in that the coils are in phase armature winding with the odd number of phases are connected opposite in magnetic relation.

5. Contactless electrical machine with axial excitation according to claim 1, characterized in that the coils are in phase armature winding with an even number of phases connected according in magnetic relation in order, starting with the coil phase, which belongs to the beginning of the phase.

6. Contactless electrical machine with axial excitation according to claim 4 or 5, which distinguishes the I, the coils in phase armature winding are connected in series.

7. Contactless electrical machine with axial excitation according to claim 4 or 5, characterized in that the coil in the phase of the armature winding are connected in parallel.

8. Contactless electrical machine with axial excitation according to claim 4 or 5, characterized in that the coil in the phase of the armature winding are connected together.

9. Contactless electrical machine with axial excitation according to claim 1, characterized in that the early phases of the armature winding of an odd number of phases belong to any of the coils in the respective phase.

10. Contactless electrical machine with axial excitation according to claim 1, characterized in that beginning phase armature winding with an even number of phases belong to the coils in the respective phases, focused on the first according to the numbering of poles Z1P/Z1msalient poles of the armature.

11. Contactless electrical machine with axial excitation according to claim 1, characterized in that the phases of armature windings are connected in star.

12. Contactless electrical machine with axial excitation according to claim 1, characterized in that the phase of the armature winding are connected in a polygon.

13. Contactless electrical machine with axial excitation according to claim 1, characterized in that colaab asnie coil winding of the inductor in the presence of more than one interconnected in sequence.

14. Contactless electrical machine with axial excitation according to claim 1, characterized in that the annular coil winding of the inductor in the presence of more than one interconnected in parallel.

15. Contactless electrical machine with axial excitation according to claim 1, characterized in that the annular coil winding inductor with an even number of them, starting with four, interconnected mixed.

16. Contactless electrical machine with axial excitation according to claim 1, characterized in that the excitation winding of the inductor is connected directly to the DC voltage source.

17. Contactless electrical machine with axial excitation according to claim 1, characterized in that when used as an electric motor, the excitation winding of the inductor is connected through m-phase diode bridge to the output ends of the armature winding.

18. Contactless electrical machine with axial excitation according to claim 1, characterized in that when used as a power source constant (straight) electric current output ends of the armature winding is connected to the input of the semiconductor rectifier device.



 

Same patents:

FIELD: electricity.

SUBSTANCE: in the proposed synchronous reluctance machine, which comprises a multiphase power winding on a stator, which is evenly distributed along an inner bore of the stator and designed for connection to a valve converter, and also a multiphase excitation winding with a full pitch, designed for connection to controlled exciters, according to the invention, at the edges of each rotor pole there is a corrugation arranged in the form of grooves with the pitch h = 8 - 10 mm, and their bases are located in planes parallel to axis of rotor rotation, at the same time the width of each groove is a = 2 - 4 mm, the depth b = 8- 10 mm.

EFFECT: reduced heating of a synchronous reluctance machine rotor due to lower magnetic losses caused by pulsations of excitation magnetomotive force.

3 dwg, 2 ex

FIELD: electricity.

SUBSTANCE: invention refers to low-speed high-torque electric motors, electric drives and generators, to the design of non-contact electric machines with electromagnetic reduction and can be used in automation systems as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, direct drives in domestic equipment, electric drives of high and average power of ships, trolleybuses, trams, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as well as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous generators of frequency converters and as controlled stepped motors. Non-contact electric reduction machine with salient-pole armature includes stator with housing made from soft magnetic material with odd and even packs of stator, which are laminated and consist of insulated electrotechnical steel plates with high magnetic permeability, and the number of which is not less than two; non-magnetic shaft with bushing from soft magnetic steel with high magnetic permeability with odd and even rotor packs with high permeability, which are laminated and consist of insulated electrotechnical steel plates, and the number of which is equal to the number of stator packs; active length of extreme stator and rotor packs in axial direction is equal if the number of stator packs is more than two; active length of stator and rotor packs in axial direction, which are located between extreme packs, is more by two times than active length of extreme packs; stator packs contain salient poles uniformly distributed along cylindrical surface, on inner surface of which there are elementary teeth, the number of salient poles on each stator pack is equal, the number of elementary teeth on each salient pole of stator pack is equal, stator packs in tangential direction are located so that axes of their salient poles located opposite each other in axial direction coincide; rotor packs contain the teeth uniformly distributed along cylindrical surface and the number of which on each rotor pack is equal; even rotor packs are offset relative to odd rotor packs in tangential direction through the half of tooth division of rotor pack, on salient poles of stator packs there is coil m-phase winding of armature, each coil of which in axial direction envelopes the appropriate salient poles of even and odd stator packs of one pole of each pack; between stator packs there located is excitation winding of inductor, which is made in the form of ring-shaped coils with longitudinal axis coinciding with longitudinal axis of machine, number of ring-shaped coils of excitation winding of inductor is one less than the number of stator packs. At that, there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each pack of rotor and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions of non-contact electric reduction machines with salient-pole armatures by applying electromagnetic reduction in wide range at providing high energy parametres and operating characteristics with possibility of smooth and deep control by means of output parametres.

9 cl, 5 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention refers to low-speed high-torque electric motors, electric drives and generators, to the design of synchronous electric machines with contact rings with possibility of deep electromagnetic reduction and can be used in automation systems, in domestic equipment, as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, electric drives of high and average power of ships, trolleybuses, trams of the underground, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as well as wind-driven generators, hydraulic generators, high-frequency electric generators and synchronous generators of frequency converters. Electric reduction machine with salient-pole armature includes stator the armature core of which consists of insulated electrotechnical steel plates with high magnetic permeability and has salient poles on inner surface of which there are elementary teeth, coil m-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, and inductor with odd and even tooth cores with even number of teeth on each core; the number of cores of inductor is at least two, active length of extreme inductor cores in axial direction is equal; if there are more than two inductor cores, active length of cores in axial direction, which are located between extreme inductor cores is more by two times than active length of extreme cores, even inductor cores are offset relative to odd ones in tangential direction through the half of its tooth division; salient tooth poles of armature and tooth inductor cores face each other and are divided with air gap; between inductor cores there located is excitation winding of inductor, which is made in the form of ring-shaped coils the number of which is one less than the number of inductor cores, excitation of inductor is performed during feeding of excitation winding with direct (rectified) current through contact rings and brushes; tooth-and-slot zone of armature is comb-shaped and distributed. At that, for serviceability of electric reduction machine with salient-pole armature there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each inductor core and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology and highly repairable constructions of electric reduction machines with salient-pole armatures by applying electromagnetic reduction in wide range at providing high energy parametres and operating characteristics with possibility of smooth and deep control by means of output parametres.

9 cl, 5 dwg, 1 tbl

Reluctance machine // 2412519

FIELD: electricity.

SUBSTANCE: reluctance machine includes toothed stator with Z1 teeth enveloped with coils of m - phase 2p - pole armature winding, is equipped with clamps for connection of capacitors, and rotor on the shaft of which there installed is toothed magnetic core with Z2 = Z1 2p teeth. On the shaft there also installed is electromagnetic pack forming in circumferential direction of the rotor Z2 poles of alternating polarity. Active resistance of each phase of armature winding comprises less than one fourth of difference of its maximum and minimum inductive resistance determined at permanent frequency of forced rotation of rotor in generator mode. Owing to electromagnetic pack introduced on the rotor, as well as owing to the winding used with the specified ratio of active and inductive parameters, the proposed reluctance machine is capable of operating in generator mode by self-excitation to capacitive load; at that, braking electromagnetic torque is developed.

EFFECT: enlarging the application area of reluctance machine.

7 dwg

FIELD: electricity.

SUBSTANCE: in the proposed synchronous reluctance machine there is multiphase power winding on a stator that is evenly distributed along the inner bore of the stator and serves for connection to valve inverter, and also multiphase exciting winding located in stator grooves and serving for connection to controlled exciters. According to the invention each phase of multiphase exciting winding is laid in one of the grooves of each stator phase zone in the centre of this zone, groove section represents equilateral trapezium with the base at stator backside. Note that groove walls formed by teeth are tilted towards each other.

EFFECT: reduction of synchronous reluctance machine rotor heating ensured by decreasing of magnetic losses caused by pulses of exciting magnetomotive forces.

2 dwg

FIELD: electricity.

SUBSTANCE: invention relates to the field of electric engineering and in particular to slow-speed high-torque electric motors, electric drives and generators, relates to peculiarities of design of contactless magnetoelectric machines with electromagnet reduction and may be used in systems of automatics, as motor-wheels, motor-drums, starter-generators, electric steering boosters, direct drives in domestic appliances, electric drives of concrete mixers, weight-lifting mechanisms, belt conveyors, pumps for liquids pumping, mechanisms with high torques on shaft and low frequencies of its rotation, and also in wind generators, hydraulic generators, high-frequency electric generators and synchronous generators of frequency converters. Proposed contactless redactor magnetoelectric machine with pole geared inductor comprises stator, anchor core of which is assembled from insulated sheets of electrotechnical steel with high magnetic permeability and has explicit poles, on inner surface of which there are elementary cogs provided, coil m - phased winding of anchor, each coil of which is arranged on according explicit pole of anchor by one on each pole, and rotor comprising inductor with geared poles symmetrically distributed along cylindrical surface with identical number of elementary cogs on each pole, between geared poles of inductor there are permanent magnets installed, which are magnetised in tangential direction. When certain ratios are maintained between number of explicit poles of anchor, number of elementary cogs on explicit pole of anchor, number of explicit poles of anchor in phase, common number of anchor cogs, number of geared poles of inductor, common number of inductor cogs, number of elementary cogs on geared pole of inductor and number of phases in m-phased winding of anchor in contactless reductor magnetoelectric machine with pole geared inductor.

EFFECT: provides for high power and operational indices, high specific rotation torque on shaft and high electromagnetic reduction of rotation frequency in mode of electric motor, and high specific power at high frequencies of EMF in mode of electric generator.

10 cl, 11 dwg

FIELD: electricity.

SUBSTANCE: invention relates to peculiarities of design of contactless electric machines with electromagnet reduction and may be used in systems of automatics, as motor-wheels, motor-drums, starter-generators, electric steering boosters, electric drives of large and medium capacity vessels, transport means, concrete mixers, weight-lifting mechanisms, belt conveyors, pumps for liquids pumping, mechanisms with high torques on shaft and low frequencies of its rotation, and also in wind generators, hydraulic generators, high-frequency electric generators and synchronous generators of frequency converters. Proposed contactless redactor electric machine with combined excitation comprises teethed stator with odd and even laminated packs from insulated sheets of electrotechnical steel with high magnetic permeability with explicit poles, on inner surface of which there are elementary teeth arranged. Besides packets of stator in tangential direction are arranged so that axes of their explicit poles located opposite to each other in axial direction in all packets of rotor coincide, and between odd and even packets of stator there is winding of inductor excitation, arranged in the form of ring-shaped coils with longitudinal axis that matches longitudinal axis of machine, coil m-phase winding of anchor, each coil of which is placed on according explicit poles of stator packets and covers one explicit pole of every packet each, and winding-free ferromagnetic rotor with non-magnetic bush, on which odd and even magnetic conductors of rotor are placed with odd and even rotor packets pressed on them as according charged packets made of insulated sheets of electrotechnical steel with high magnetic permeability, and their number equals number of stator packets, with identical number of teeth on each rotor packet, besides even packets of rotor are shifted relative to odd ones in tangential direction by half of teeth division of rotor packet, and between odd and even magnetic conductors of rotor there are circular layers of permanent magnets axially magnetised in the same direction. At the same time certain ratios are maintained between a number of explicit poles in each stator packet, number of elementary teeth at each explicit pole of stator packet, number of elementary teeth on each explicit pole of stator packet, number of explicit poles of each stator packet in phase, number of teeth of each stator packet, number of teeth in every rotor packet and number of phases of m-phase winding of anchor in contactless redactor electric machine with combined excitation.

EFFECT: invention provides for high power and operational indices, high specific rotation torque on shaft and high electromagnetic reduction of rotation frequency in mode of electric motor, and high specific power at high frequencies of EMF in mode of electric generator.

18 cl, 11 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention is related to the field of electric engineering, in particular to synchronous machines of inductor type, which rotate in process of anchor polarity change and shaft rotation synchronisation. Proposed synchronous machine of inductor type has a structure with an axial shift, which comprises a part of shaft in its centre, besides this machine comprises stator on the side of the field, which includes yoke made of magnetic material, and excitation body protruding from yoke in axial direction of shaft for creation of pole N and pole S in radial direction, rotor, which comprises inductors of pole S arranged so that to be located opposite to pole N formed by excitation body, besides inductors of pole S are arranged so that to be located opposite to pole S formed by excitation body, and stator on the anchor side, where anchor coil is installed so that to be located opposite to inductors of pole N and inductors of pole S.

EFFECT: simplified design and reduced axial dimensions of synchronous machine of inductor type.

3 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: invention refers to the sphere of electrical engineering and is highly relevant for design of controlled electric drives of general-purpose industrial machinery and transportation vehicles, in particular - on-board power system equipment of motor cars, tractors, cross-country vehicles etc. Conceptually the invention consists in the synchronous reluctance machine stator being wrapped in multiphase power winding, uniformly distributed along the stator inner bore and enabling connection to a valve inverter, and multiphase full-pitch excitation winding providing for connection to controlled exciters. The invention concept envisages a rectangular shape design of the stator core stack, with the excitation winding coils being laid in additional grooves arranged at the stack corners.

EFFECT: improved efficiency of electrotechnical steel utilisation in the process of synchronous reluctance machinery fabrication.

5 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and is designed to be used in various electrical hardware with rotary and linear motion of movable parts. The propose method proceeds from the principle of simultaneous control of several independent, consecutively located magnetic fluxes induced by permanent magnets (1) with magnetic circuits representing rods (2) and (3). The operating magnetic fluxes are bridged by magnetic shunts (4) making, as well, the magnetic circuits for control magnetic fluxes induced by the common winding (6) connecting all magnetic shunts (4). Since the operating and control magnetic fluxes in the aforesaid shunts (4) are mutually perpendicular, the control over the shunt magnetic resistance allows a simultaneous control over all magnetic fluxes of permanent magnets (1) influencing magnetic elements (5). The method is implemented in the inductor machine made up of stator (7) and rotor (8).

EFFECT: simplified control over magnetic fluxes in more than one magnetic circuit at a time.

6 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: non-contact reduction machine with axial excitation includes stator with housing made from soft magnetic material with odd and even packs of stator, which are laminated and consist of insulated electrotechnical steel plates with high magnetic permeability, and the number of which is not less than two, non-magnetic shaft; stator packs contain salient poles uniformly distributed along cylindrical surface, on inner surface of which there are elementary teeth; stator packs in tangential direction are located so that axes of their salient poles located opposite each other in axial direction coincide; odd and even rotor packs the number of which is equal to number of stator packs are pressed on the appropriate odd and even magnetic conductors of rotor, which are put on non-magnetic bushing installed on non-magnetic shaft; rotor packs contain teeth uniformly distributed along cylindrical surface; even packs of rotor are offset relative to odd rotor packs in tangential direction through the half of tooth division of rotor pack; between rotor magnetic conductors there located are ring-shaped layers of constant magnets axially magnetised in one direction; number of ring-shaped layers of constant magnets is one less than number of rotor packs; on salient poles of stator packs there is coil m-phase armature winding each coil of which in axial direction envelopes the appropriate salient poles of even and odd stator packs of one pole of each pack; excitation winding of inductor is made in the form of ring-shaped coils with longitudinal axis coinciding with longitudinal axis of machine; number of ring-shaped coils of excitation winding of inductor is one less than the number of stator packs. At that, for serviceability of machine there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each pack of rotor and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions with possibility of using frame coils of armature winding of non-contact electric reduction machines with axial combined excitation and using electromagnetic reduction in wide ranges at providing high energy parameters and operating characteristics with possibility of smooth and deep control by means of output parameters.

9 cl, 5 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention refers to the design of non-contact electric machines with electromagnetic reduction and can be used in automation systems, in military equipment, as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, direct drives in domestic equipment, electric drives of high and average power of ships, trolleybuses, trams of the underground, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as well as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous generators of frequency converters and as controlled stepped motors. Non-contact electric reduction machine with axial excitation includes stator with housing made from soft magnetic material with odd and even packs of stator, which are laminated and consist of insulated electrotechnical steel plates with high magnetic permeability, and the number of which is not less than two; non-magnetic shaft with bushing from soft magnetic steel with high magnetic permeability with odd and even rotor packs with high magnetic permeability, which are laminated and consist of insulated electrotechnical steel plates, and the number of which is equal to the number of stator packs; stator packs contain salient poles uniformly distributed along cylindrical surface, on inner surface of which there are elementary teeth; the number of salient poles on each stator pack is the same; the number of elementary teeth on each salient pole of stator pack is the same; stator packs in tangential direction are located so that axes of their salient poles located opposite each other in axial direction coincide; rotor packs contain the teeth uniformly distributed along cylindrical surface and the number of which on each rotor pack is the same; even rotor packs are offset relative to odd rotor packs in tangential direction through the half of tooth division of rotor pack, on salient poles of stator packs there is coil m-phase winding of armature, each coil of which in axial direction envelopes the appropriate salient poles of even and odd stator packs of one pole of each pack and can be frame for the purpose of manufacturability; between stator packs there located is excitation winding of inductor, which is made in the form of ring-shaped coils with longitudinal axis coinciding with longitudinal axis of machine, number of ring-shaped coils of excitation winding of inductor is one less than the number of stator packs. At that, for serviceability of machine there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each pack of rotor and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions having the possibility of using frame coils of armature winding of non-contact electric reduction machines with axial excitation and using electromagnetic reduction in wide ranges at providing high energy parameters and operating characteristics with possibility of smooth and deep control of output parameters.

9 cl, 5 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention refers to the design of synchronous electric machines with contact rings with possibility of high electromagnetic reduction and can be used in automation systems, in military equipment, in domestic equipment, as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, electric drives of high and average power of ships, trolleybuses, trams of the underground, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as well as wind-driven generators, hydraulic generators, high-frequency electric generators and synchronous generators of frequency converters. Electric reduction machine with axial excitation includes stator the armature core of which consists of insulated electrotechnical steel plates with high magnetic permeability and has salient poles on inner surface of which there are elementary teeth, coil m-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, and inductor with odd and even tooth cores with even number of teeth on each core; the number of cores of inductor is at least two, active length of extreme inductor cores in axial direction is the same; if there are more than two inductor cores, active length of cores in axial direction, which are located between extreme inductor cores, is more by two times than active length of extreme cores, even inductor cores are offset relative to odd ones in tangential direction through the half of its tooth division; salient tooth poles of armature and tooth inductor cores face each other and are divided with air gap; between inductor cores there located is excitation winding of inductor, which is made in the form of ring-shaped coils the number of which is one less than the number of inductor cores; excitation of inductor is performed during feeding of excitation winding with direct (rectified) current through brushes and contact rings; tooth-and-slot zone of armature is comb-shaped and distributed. At that, for serviceability of electric reduction machine with axial excitation there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each inductor core and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology and highly repairable constructions of electric reduction machines with axial excitation by applying electromagnetic reduction in wide ranges at providing high energy parameters and operating characteristics with possibility of smooth and deep control by means of output parameters.

9 cl, 5 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: result is achieved by a special configuration of a motor magnetic conductor and a control circuit, which makes it possible to generate unipolar currents of phases, having a shape of "detected sinusoid" and amplitude-controlled with the help of an inverter, which consists of three half-bridge circuits of a rotor position sensor and a control system.

EFFECT: reduced torque pulsation.

4 dwg

Inductor machine // 2422971

FIELD: electricity.

SUBSTANCE: inductor machine comprises a double-pack geared stator with Z1 teeth and 2p - pole multiphase winding with even number of phases on each packet, formed by a series connection of p coils in each phase, and a double-pack geared rotor. The rotor comprises two geared magnetic conductors with Z2 = 3p teeth at each packet, is divided into two parts with a plane passing between geared packets and is equipped with additional bearing units in the separation area.

EFFECT: saving of structural materials, simplification and compactness of a double-pack inductor machine, provision of possibility of independent rotation of a rotor under each pack and usage of a single electric machine to drive two various mechanisms, which provides for a wider application field of this inductor machine.

4 dwg

FIELD: electricity.

SUBSTANCE: invention refers to low-speed high-torque electric motors, electric drives and generators, to the design of non-contact electric machines with electromagnetic reduction with combined excitation of inductor and can be used in automation systems as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, direct drives in domestic equipment, electric drives of high and average power of ships, trolleybuses, trams of the underground, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous generators of frequency converters and as controlled stepped motors. Non-contact reduction machine with salient-pole armature includes stator with housing made from soft magnetic material with odd and even packs of stator, which are laminated and consist of insulated electrotechnical steel plates with high magnetic permeability, and the number of which is not less than two, non-magnetic shaft, stator packs contain salient poles uniformly distributed along cylindrical surface, on inner surface of which there are elementary teeth, stator packs in tangential direction are located so that axes of their salient poles located opposite each other in axial direction coincide; odd and even rotor packs the number of which is equal to number stator packs are pressed on the appropriate odd and even magnetic conductors of rotor, which are put on non-magnetic bushing installed on non-magnetic shaft, rotor packs contain teeth uniformly distributed along cylindrical surface, even packs of rotor are offset relative to odd rotor packs in tangential direction through the half of tooth division of rotor pack; between rotor magnetic conductors there located are ring-shaped layers of constant magnets axially magnetised in one direction, number of ring-shaped layers of constant magnets is one less than number of rotor packs; on salient poles of stator packs there is coil m-phase armature winding each coil of which in axial direction envelopes the appropriate salient poles of even and odd stator packs of one pole of each pack; excitation winding of inductor is made in the form of ring-shaped coils with longitudinal axis coinciding with longitudinal axis of machine; number of ring-shaped coils of excitation winding of inductor is one less than the number of stator packs. At that, for serviceability of machine there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each pack of rotor and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions of non-contact electric reduction machines with salient-pole armatures with combined excitation and application of electromagnetic reduction in wide ranges at providing high energy parametres and operating characteristics with possibility of smooth and deep control by means of output parametres.

9 cl, 5 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention refers to low-speed high-torque electric motors, electric drives and generators, to the design of non-contact magnetic electric machines with electromagnetic reduction and can be used in automation systems, in domestic equipment, as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, lifting mechanisms, electric drives of concrete mixers, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of the shaft rotation, as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous frequency converters, and as controlled stepped motors. Non-contact magnetic electric reduction machine with salient-pole armature includes stator the armature core of which consists of insulated electrotechnical steel plates with high magnetic permeability, and has salient poles on inner surface of which there are elementary teeth, coil m-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, and ferromagnetic rotor without winding, which contains inductor with odd and even toothed cores with equal number of teeth on each core, odd and even toothed cores of inductor are made in the form of packs consisting of insulated electrotechnical steel plates with high magnetic permeability, number of inductor cores is not less than two, even inductor cores are offset relative to odd ones in tangential direction through the half of its toothed division; between magnetic conductors of inductor there located are ring-shaped layers of segmental constant magnets axially magnetised in one direction. At that, for serviceability of non-contact magnetic electric reduction machine with salient-pole armature there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each inductor core and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions of non-contact magnetic electric reduction machines with salient-pole armatures with deep electromagnetic reduction and enlarged capabilities of their application at maintaining high energy parametres and operating characteristics.

5 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention relates to the field of electric engineering and designs of contactless reducer electromagnetic machines with electromagnet reduction, intended for use as motor - wheels, motor - drums, direct drives in electrical appliances (electric meat grinders, washing machines, etc), electric drives of concrete mixers, weight-lifting mechanisms, belt conveyors, pumps for pumping of fluids, mechanisms with high torque on shaft and low frequencies of shaft rotation, and also as high-frequency electric generators. Proposed contactless reducer electromagnet machine comprises stator with explicit poles, on inner surface of which there are elementary cogs, m-phased focused anchor winding of which consists of coils, each coil covering an appropriate anchor pole, and winding-free ferromagnetic rotor, comprising two inductor cores displaced relative to each other in tangential direction by half of gear division, with toroid permanent magnet magnetised in axial direction and installed between cores of inductor, to develop magnetic flow of excitation. At the same time certain ratios are maintained between number of anchor poles, number of elementary teeth on anchor pole, number of anchor poles in phase, common number of anchor teeth, number of teeth on each inductor core and number of phases of anchor winding of contactless reducer electromagnetic machine.

EFFECT: high power and operational indices, high specific rotary torque on shaft and high electromagnetic reduction of rotation frequency in mode of electric motor, high specific capacity at high frequencies of electromotive force in mode of electric generator.

12 cl, 14 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention may be used in systems of automatics, as motor - wheels, motor - drums, starter - generators, electric power steering, direct drives in electrical appliances, electric drives of high and medium capacity of vessels, vehicles, concrete mixers, weight-lifting mechanisms, belt conveyors, pumps for pumping of fluids, mechanisms with high torque on shaft and low frequencies of its rotation, and also as wind-powered generators, hydraulic generators, high-frequency electric generators and synchronous generators of frequency converters. Proposed contactless reducer electric machine with electromagnet excitation comprises geared stator with odd and even packs charged from insulated sheets of electric steel with high magnetic permeability with explicit poles, on inner surface of which there are elementary cogs, besides, packets of stator in tangential direction are arranged so that axes of their explicit poles of all stator packets arranged opposite to each other in axial direction match, and between odd and even packets of stator there is inductor excitation winding arranged in the form of circular coils with longitudinal axis, matching with longitudinal axis of machine, coil m-phase winding of anchor, each coil of which is arranged on according explicit poles of stator packets and covers one explicit pole of each packet, and winding-free ferromagnetic rotor, comprising non-magnet shaft and soft magnetic bush on it with odd and even packets charged from insulated sheets of electric steel with high magnetic permeability with identical number of teeth at each packet, besides, even packets of rotor are displaced relative to odd ones in tangential direction by half of gear division of rotor packet. At the same time certain ratios are maintained between number of explicit poles of each stator packet, number of elementary teeth on each explicit pole of stator packet, number of explicit poles of each stator packet in phase, number of teeth of each stator packet, number of teeth of each rotor packet and number of phases of m-phase winding of anchor of contactless reducer electric machine with electromagnetic excitation.

EFFECT: provision of high power and operational indices, high specific rotary torque on shaft and high electromagnetic reduction of rotation frequency in mode of electric motor, high specific capacity at high frequencies of electromotive force in mode of electric generator.

17 cl, 15 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: electric reducing machine with electromagnetic excitation contains stator with salient poles on the inner surface of which elementary teeth are executed. The stator's m-phase concentrated winding of armature is comprised of coils, each coil wraps corresponding armature pole. The machine also contains ferromagnetic toothed rotor without windings with odd and even inductor cores the number of which is not less than two. Even inductor cores are shifted relative to odd cores in tangential direction by half of inductor tooth mark, between odd and even inductor cores the ring-shaped inductor exciting coils are located. Electric connection of inductor exciting winding with constant (rectified) voltage source is implemented via contact rings and brushes. In this machine, certain relations between armature poles number, elementary teeth number on armature pole, number of teeth on each inductor core and armature winding phases number of electric reducing machine with electromagnetic excitation are observed.

EFFECT: achievement of high power and operational indicators, high specific rotation torque on shaft and high electromagnetic reduction of rotation speed in electric motor mode and high specific power at high frequencies of EMF in electric generator mode.

16 cl, 14 dwg, 1 tbl

FIELD: electricity.

SUBSTANCE: invention refers to the design of non-contact electric machines with electromagnetic reduction and can be used in automation systems, in military equipment, as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, direct drives in domestic equipment, electric drives of high and average power of ships, trolleybuses, trams of the underground, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as well as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous generators of frequency converters and as controlled stepped motors. Non-contact electric reduction machine with axial excitation includes stator with housing made from soft magnetic material with odd and even packs of stator, which are laminated and consist of insulated electrotechnical steel plates with high magnetic permeability, and the number of which is not less than two; non-magnetic shaft with bushing from soft magnetic steel with high magnetic permeability with odd and even rotor packs with high magnetic permeability, which are laminated and consist of insulated electrotechnical steel plates, and the number of which is equal to the number of stator packs; stator packs contain salient poles uniformly distributed along cylindrical surface, on inner surface of which there are elementary teeth; the number of salient poles on each stator pack is the same; the number of elementary teeth on each salient pole of stator pack is the same; stator packs in tangential direction are located so that axes of their salient poles located opposite each other in axial direction coincide; rotor packs contain the teeth uniformly distributed along cylindrical surface and the number of which on each rotor pack is the same; even rotor packs are offset relative to odd rotor packs in tangential direction through the half of tooth division of rotor pack, on salient poles of stator packs there is coil m-phase winding of armature, each coil of which in axial direction envelopes the appropriate salient poles of even and odd stator packs of one pole of each pack and can be frame for the purpose of manufacturability; between stator packs there located is excitation winding of inductor, which is made in the form of ring-shaped coils with longitudinal axis coinciding with longitudinal axis of machine, number of ring-shaped coils of excitation winding of inductor is one less than the number of stator packs. At that, for serviceability of machine there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each pack of rotor and number of phases of m-phase armature winding.

EFFECT: manufacture of high-technology constructions having the possibility of using frame coils of armature winding of non-contact electric reduction machines with axial excitation and using electromagnetic reduction in wide ranges at providing high energy parameters and operating characteristics with possibility of smooth and deep control of output parameters.

9 cl, 5 dwg, 1 tbl

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