SUBSTANCE: invention is referred to electric engineering and power engineering, in particular, to electromagnetic motors. The electromagnetic motor comprises a rotor arranged in the form of a shaft installed as capable of rotation of at least two discs installed on the shaft, with permanent magnets arranged along their periphery, a stator comprising electromagnets installed as capable of interaction with permanent magnets, besides, the permanent magnets are arranged in the form of cylinders, planes of ends of which are located in the radial plane of each disc, besides, permanent magnets of the first and second discs face each other with poles, and the stator comprises electromagnets in the form of solenoids without magnetic conductors installed between discs of the rotor, two start-up electromagnets, comprising non-linked magnetic conductors and installed oppositely to a permanent magnet, of any of rotor discs, a contactless induction switch installed on the stator opposite to any of permanent magnets of rotor discs with the possibility of interaction with each of permanent magnets arranged on one of rotary discs of the rotor, at the moment of permanent magnet passing through a zone of sensitivity of a sensor part of the contactless induction switch.
EFFECT: increased capacity of a motor.
The invention relates to the field of energy, in particular to electromagnetic engines.
Known magnetodynamics engine with contactless switching, containing the constant current source, a stator with evenly spaced on its circumference solenoids, a rotor with permanent magnets, a distribution manifold, an optical sensor mounted on the stator, reflective stripes on the rotor interacting with the optical sensor, and the solenoid is connected to the constant current source in parallel, the permanent magnets are connected between the same poles, and the distribution manifold made in the form of electronic keys that are included in the circuit of the solenoids and controlled by the microprocessor signals from the optical sensor (1) (a utility model RU # 89301, CL H02K 29/03, publ. 2009).
The disadvantages of the known device is that to start the engine requires a powerful current source connected between the same poles of the permanent magnets of the rotor during operation of the engine under load lose their magnetic properties, which can lead to the stop of the engine, the Assembly of such a great engine power will cause difficulties due to the fact that it is necessary to connect the same poles of a strong magnet that will be a start.
The most the closest to the technical essence and the achieved effect to the proposed electromagnetic motor is an electromagnetic motor, containing the rotor, made in the form of a shaft mounted for rotation of the two disks mounted on the shaft located on the periphery of the disk permanent magnets and the balancers, the stator containing electromagnets mounted on the outer side of the disk with the opportunity to interact with the permanent magnets connected by a magnetic microswitch and the flywheel permanent magnets made in the form of rectangles, and are located on the disc surface so that their poles of the same name directed along the outer surface of the disk and opposite to the center of the disk, and the permanent magnets are located on the disc surface so that the longitudinal their axes are at an angle to the radii of the discs (US patent No. 5594289, CL H02K 16/00, publ. 1997).
A disadvantage of the known electromagnetic motor is the low power of the engine due to the fact that the magnets of the rotor is placed at an angle to the axes of the coils of the electromagnets of the stator, which is formed when this region of interaction between the permanent magnets of the rotor and the electromagnets of the stator is characterized by the fact that it is the density of the lines of force of the permanent magnets is less than their pole ends, therefore, will be less than the repulsive force arising from the interaction of the permanent magnets of the rotor and who is wedenig electromagnets of the stator; in addition, for any of the cooperating permanent magnets of the rotor vector repulsive force is not directed along the tangent to the circumference of the disk and along the chord, which reduces torque of the engine.
The present invention is to increase the capacity of the engine.
The essence of the invention lies in the fact that in the known electromagnetic motor contains a rotor that is made in the form of a shaft mounted for rotation, and at least two disks mounted on the shaft, located at their periphery by the permanent magnets and the stator containing the electromagnets installed with the opportunity to interact with permanent magnets according to the invention the permanent magnets are made in the form of cylinders, planes, the ends of which are located in a radial plane of each of the disks, while the permanent magnets of the first and second disks facing each other unlike poles, and the stator contains electromagnets the form of coils without cores, installed between the rotor disks, two starting electromagnet having an unbound magnetic and installed opposite the permanent magnet, any of the disks of the rotor, the switch contactless induction mounted on the stator opposite of any of the permanent magnet disc rotor in which aimogasta with each of the permanent magnets, located on one of the rotating discs of the rotor, the passage of the permanent magnet proximity touch of the switch contactless induction.
1 shows the inventive electromagnetic engine in cross-section a-A.
Figure 2 presents the rotor disc in the cross-section B-B.
Figure 3 presents the stator in the context of In-C.
4 shows the actuator electromagnets in the context of G-D,
Figure 5 presents the control circuit of the inventive electromagnetic engine.
Figure 6 presents the schema fragment of the motor with the designation of the poles on the magnets and solenoids.
Figure 7 presents the scheme of the repulsive forces on the first disc of the rotor.
On Fig presents the scheme of the repulsive forces on the second disk of the rotor.
The inventive electromagnetic motor includes a rotor consisting of a shaft 1 mounted rotatably on the supporting bearings 2, 3, are placed in vertical base plates 4, 5, respectively, a base plate, tighten the studs 6, the first disk 7 with a fixed permanent magnets 8, the second disk 9 with a fixed permanent magnet 10, and the permanent magnets 8 and 10 is cylindrical and located at the periphery of the disks 7 and 9 of the rotor, respectively, on a circle of constant radius is almost equal to the radius of the disks 7 and rotor, the plane ends of the permanent magnets 8 and 10, which are the poles are located in a radial plane of each of the disks 7 and 9, the permanent magnets 8 of the first disk 7 is turned in the area between the disks 7 and 9 poles of one polarity, and the permanent magnets 10 of the second disk 9 is turned in the above field poles of opposite polarity, the disks 7 and 9 of the rotor made of a nonmagnetic material, such as fiberglass, and with the sleeves 11, 12 are rigidly connected with the shaft 1. Between the disks 7 and 9 of the rotor placed the stator 13, containing the solenoids 14 without cores, installed opposite the permanent magnets 8 and 10, respectively disks 7 and 9 of the rotor, and each of the solenoids 14 with one end facing the poles of the permanent magnets 8 of the first drive rotor 7, and the other opposite to the poles of the permanent magnets 10 of the second disk 9 of the rotor, thereby to generate rotational motion will involve both poles of each of the solenoid 14, which will provide a significant increase in engine power, in addition, the interaction between the permanent magnets 8 and 10 discs 7 and 9 of the rotor and the solenoid 14 of the stator 13 will be practically in the area of the maximum density of magnetic field lines of each of the cooperating permanent magnets 8 and 10, and to create a torque used max the maximum possible value of the radius of the periphery of the disks 7 and 9 of the rotor, which shoulder for vector repulsive forces, which are directed almost tangent to the circumference of the periphery of the disks 7 and 9.
In front of one of the permanent magnets 10 of the second rotor disk 9 is installed and fixed two starting electromagnet 15, 16, the magnetic circuits which are not connected. The magnetic circuit is made of a material providing their interaction with the permanent magnets. Between the ends of the permanent magnets 10 of the second rotor disk 9 and the ends of the electromagnets 15, 16 includes a gap which does not impede the rotation of the rotor. Starting the electromagnets 15 and 16 facing to the permanent magnets 10 of the second rotor disk 9 by the like poles, thereby providing the appearance of repulsive forces between them, when the power supply to any of the electromagnets 15 or 16. At the periphery of the second disk 9 of the rotor in close proximity to the circumference of the disk that hosts the permanent magnets 10, permanently installed switch contactless induction 17, is activated as a result of interaction with each of the permanent magnets 10, placed on a rotating together with the drive shaft 9 of the rotor, the passage of the permanent magnet 10 in the zone of sensitivity of the touch of the switch 17. Idle the engine with any of the constant is of Agnico 10 of the second rotor disk 9, freely rotating together with the shaft 1, has the possibility to be installed between the starter solenoids 15, 16 due to the interaction of the permanent magnet 10 of the second disk 9 of the rotor magnetic circuits starting electromagnets 15, 16.
The inventive electromagnetic engine works as follows.
When turning on the toggle switch 18, the voltage is supplied from an independent source of electric power 19 (battery) to the motor control circuit consisting of a control circuit 20 starting electromagnets 15, 16, switch contactless induction 17 and the control circuit 21 of the solenoid 14 of the stator 13, consisting of five channels, in accordance with the number of solenoids 14. Selecting the direction of rotation of the engine and clicking the appropriate button 22 or 23, serves the voltage of the electric power to the electromagnet 15 or 16. As a result of interaction, for example, starting electromagnet 16 with a permanent magnet 10 of the second rotor disk 9 will receive the initial rotation in the selected direction. During the time of rotation of the rotor permanent magnets 8, 10 respectively disks 7, 9 of the rotor, making a rotational movement around the axis of the shaft 1, are installed in front of the solenoids 14 of the stator 13 so that the magnetic neutral permanent magnets 10 and the axis of the solenoids 14 are displaced relative to each the Ruga. At this point one of the permanent magnets 10 of the second disk 9 of the rotor to rotate around the axis of the shaft 1, falls within the sensing range of the switch 17, the interaction of the magnetic field of the permanent magnet 10 of the second rotor disk 9 with the sensor element of the switch 17 causes the output of the last signal is formed, which provides the enable control circuit 21 of the solenoid 14 of the stator 13, the switching power supply at the same time with all the solenoids 14 of the stator 13, which leads to the simultaneous occurrence of a magnetic field on each of the solenoids 14 of the stator 13. The emerged magnetic field of the solenoid 14 will interact with the magnetic fields of permanent magnets 8 and 10. Due to the interaction of magnetic fields of permanent magnets 8 and 10 respectively disks 7 and 9 of the rotor with the magnetic fields of the solenoids 14 of the stator 13 and the rotor becomes the main rotational movement. The solenoids 14 of the stator 13 are to receive electrical power until such time as the permanent magnet 10 of the second disk 9, which interact with the switch 17 rotates together with the disk 9 will not be released from the zone of sensitivity of the switch 17. Then the signal level at the output of the switch 17 becomes zero, the control circuit 21 of the solenoid 14 of the stator 13 is turned off, the solenoid 14 is de-energized, resulting in their disappearance is magnitnykh fields and end the interaction with the permanent magnets 8 and 10 discs 7 and 9 of the rotor. Since then, the rotor rotates by inertia. With him are rotated around the shaft axis permanent magnets 8 and 10. Since the permanent magnets 8 and 10 are distributed on the periphery of the disks 7 and 9 evenly and follow one after the other, as the rotor turns, following another permanent magnet 10 of the second rotor disk 9 will be included in the sensitivity of the switch 17. At the same time, relative to the solenoids 14, following another permanent magnets 8 and 10 discs 7 and 9 of the rotor, after turning around the axis of the motor shaft, are mounted in front of the solenoids 14 of the stator 13 so that the magnetic neutral permanent magnets 8 and 10 and the axis of the solenoids 14 are displaced relative to each other, at the output of the switch 17 is again a signal that provides the enable control circuit 21 of the solenoid 14 of the stator 13. The interaction of the magnetic fields of the solenoids 14 with the magnetic fields of permanent magnets 8 and 10 discs 7 and 9 of the rotor, respectively, again leads to repulsive forces between the poles of the solenoid 14 of the stator 13 and the poles of the permanent magnets 8 and 10 discs 7 and 9 of the rotor, respectively, which provides rotational movement of the latter.
The rotor of the motor becomes stable rotation, and the process of converting the potential energy of permanent magnets 8 and 10 into mechanical energy the Yu becomes continuous.
For translation engine from the operating mode to stop mode, you must turn off the switch 18, this cuts the power supply to the control circuit 20 starting electromagnets 15, 16, switch 17 and the control circuit 21 of the solenoid 14 of the stator 13, the interaction between the permanent magnets 8 and 10 discs 7 and 9 of the rotor, respectively, and the solenoid 14 of the stator 13 is stopped, the rotor no longer work force and the motor stops. After the complete stop of the engine of one of the permanent magnets 10 of the second disk 9 of the rotor due to the interaction with the magnetic pad electromagnets 15, 16, is placed between the starting electromagnets 15 and 16, ensuring the readiness of the engine for the next run.
Sources of information
1. Utility model RU # 89301, CL H02K 29/03, publ. 2009
2. The US patent No. 5594289, CL H02K 16/00, publ. 1997 - the prototype.
Electromagnetic engine that contains the rotor, made in the form of a shaft mounted for rotation and at least two disks mounted on the shaft, located at their periphery by the permanent magnets and the stator containing the electromagnets installed with the possibility of interaction with the permanent magnets, wherein the permanent magnets are made in the form of cylinders, planes, the ends of which are located in idealnoi plane of each of the disks, while permanent magnets of the first and second disks facing each other unlike poles, and the stator contains the electromagnets in the form of coils without cores, installed between the rotor disks, two starting electromagnet having no associated magnetic circuits, and installed opposite the permanent magnet, any of the disks of the rotor, the switch contactless induction mounted on the stator opposite of any of the permanent magnet disc rotor interoperable with each of the permanent magnets disposed on one of the rotating discs of the rotor, the passage of the permanent magnet proximity touch of the switch contactless induction.
SUBSTANCE: invention relates to automotive power plants. Proposed power plant comprises thermal engine and rotary machine. Rotary machine comprises stator, first and second rotors. One of the latter is coupled with thermal engine. Another rotor is coupled with. Stator incorporates several armatures to generate rotary magnetic field. First rotor comprises some magnetic poles. The latter are made up of multiple magnetic poles arranged with clearance in direction along the circle. Every two adjacent poles feature unlike polarities. Second rotor comprises some elements from magnetically soft material. The latter are arranged between armatures and magnetic poles. Relationship between number of armature poles, magnetic poles and elements from magnetically soft material satisfy the following condition: 1:m:(1+m)/2, where m ≠ 1,0.
EFFECT: higher efficiency.
17 cl, 31 dwg
SUBSTANCE: electric motor (1) consists of the first structure (4) that includes some magnetic poles formed by a certain sum of magnetic poles (4a) organised in certain direction and arranged in such a way that every two neighbouring magnetic poles (4a) have polarity that differ from one another, the second structure (3) that includes some armatures located opposite to the said magnetic poles for generating movable magnetic fields moving in certain direction between the row of armature and row of magnetic poles under the influence of certain sum of armature magnetic poles generated in the armatures (3c - 3e) at electric power supply to them, and the third structure (5) that includes a row of elements from magnetic-soft material formed by certain sum of elements (5a) from magnetic-soft material organised in certain direction with a one gap in relation to the other and arranged in such a way that a row of elements from magnetic-soft material is located between a row of magnetic poles and a row of armatures, number of magnetic poles (4a) and number of elements (5a) from magnetic-soft material is determined by the ratio 1 : m : (1 + m)/2 (m ≠ 1.0).
EFFECT: decrease of dimensions and manufacturing cost of the said electric motor with simultaneous provision of possibility to increase freedom degree at its designing.
6 cl, 19 dwg
SUBSTANCE: method is realised by variation of terminal electric machine stator and rotors design variation, and also by using non-magnet and dielectric materials in bearing structures of the machine, which make it possible to reduce losses from occurrence of vortex currents. Application of up-to-date non-magnet and dielectric materials with sufficient heat resistance and strength exceeding strength of metals, and also with lower volume weight in manufacturing of electric machines will make it possible to wider use terminal electric machines of the proposed design in aircraft building.
EFFECT: improved manufacturability of terminal machines production, higher stiffness of their main parts and increased power indices of a terminal electric machine.
FIELD: electrical engineering; engines.
SUBSTANCE: applied engine has metal armature bodies with coils on them and magnets placed in numerous levels. The magnetic conductors with their concentric placement form a rotor, according to this invention. The rotor includes numerous cylindrical magnetic conductors placed in many levels in radial direction, and numerous magnets attached to their respective conductors with alternation of the magnets' polarity in relation to each other in the peripheral direction. The stator has metal armature bodies turned to their respective magnetic conductors and numerous coils turned to magnets. Furthermore, an actuating mechanism for engaging the abovementioned engine is suggested, including the brake disc and the calliper. The brake disc is fixedly connected with the engine's rotor. The calliper is installed on one side of the brake disc to limit the brake disc rotation.
EFFECT: increase in the engine's power and in the power of the actuating mechanism for the said engine, which at the same time improves the mass and dimensions parameters for both devices.
19 cl, 16 dwg
SUBSTANCE: in a proposed electrical machine, comprising a device for development of a magnetic field, where an inductor is represented by ferromagnetic cores with electric coils, and devices for conversion of one type of energy into another one, according to the invention, the device for development of the magnetic field is made as a separate unit in the form of a flange with concentric flanges on the wall made of non-magnetic and dielectric materials. In through radial slots made on flange collar rims, in a certain sequence, ferromagnetic cores are fixed with electric coils, which form pole pairs of the electrical machine. Stiffness of ferromagnetic cores fixation with electric coils in slots is ensured by a pressing cover, which is also made from non-magnetic and dielectric material. The device to convert one type of energy into another one consists of two rotors. One rotor is installed in the inner part of the device to develop a magnetic field and interacts with a so called main magnetic flux Φm and interacts with a so called magnetic leakage flux Φl.
EFFECT: higher efficiency of electrical machine operation due to using a magnetic leakage flux Φl in electric motors to develop a torque Mt, and in current generators - for production of electric energy.
SUBSTANCE: electrical machine of double rotation includes stator, rotors installed so that they can rotate, the first blades that are connected to the first rotor and are rotated with the first rotor in the first direction, the second blades that are connected to the second rotor and are rotated with the second rotor in the second direction, shafts of rotors, and bearings that allow rotation of shafts, load-carrying housing; the first blades and the second blades are arranged outside the housing; stator is made in the form of individual teeth with winding without yoke, and rotors are made in the form of concentric sleeves from material with high magnetic permeability, which are located on outer and inner side of stator; on sleeves there fixed are radially magnetised constant magnets; polarity of neighbouring constant magnets alternates; on each tooth there located is concentric winding insulated from housing; number of poles of the first rotor is equal to the number of periods of the first fundamental harmonic of magnetomotive force of stator winding; number of poles of the second rotor is equal to the number of periods of the second fundamental harmonic of magnetomotive force of stator winding; rotors are not attached to each other and directions of their rotation are opposite.
EFFECT: improving reliability of electric machine of double rotation at simultaneous exclusion of transmission to its stator of reactive moment and providing the possibility of using air flows with low linear speeds for operation of this machine in generator mode.
9 cl, 3 dwg
FIELD: power industry.
SUBSTANCE: double-rotor tooth wind-driven generator includes stationary stator winding of solenoid type, as well as two rotors from non-magnetic material. Rotors are made in the form of discs and located coaxially. Equal even number of constant magnets is distributed uniformly on each rotor. Stationary stator winding of solenoid type is wound along axis of wind-driven generator and located between two cylindrical cores from ferromagnetic material. Core with larger diameter is fixed with its outer side in the housing. Both rotors are arranged on one shaft. Shaft is connected to wind wheel and has the possibility of being rotated in bearing supports fixed in the housing. Constant magnets are U-shaped, and their poles are located coaxially on each of the rotors and directed unipolar to each other. Each of constant magnets has the possibility of coaxial rotation with edges of cylindrical cores. Edges of cylindrical cores have tooth shape with number of teeth equal to number of constant magnets. Teeth of one edge of cylindrical cores are coaxial to slots of other edge of cylindrical cores. In each slot there located is connection strap from ferromagnetic material, which connects both cores.
EFFECT: increasing EMF induced in stator winding and simplifying the manufacturing procedure of stator winding.
FIELD: engines and pumps.
SUBSTANCE: engine includes stator with the first and the second armatures which form rotating magnetic field, inner rotor with the first and the second constant magnets, and outer rotor (13) located between stator and inner rotor. Outer rotor (13) includes rotor housing (31) that supports the first and the second induction magnetic poles (38L, 38R) made from feebly magnetic material so that they are inserted into rotor housing. Phase of the first induction magnetic pole (38L) coincides with phase of the second induction magnetic pole (38R). The first and the second induction magnetic poles are assembled in rotor housing (31) so that they are inserted into linear slots (31a) formed in rotor housing in (L) axis direction. Since the first and the second induction magnetic poles (38L, 38R) are aligned in (L) axis direction, outer rotor (13) has simple design and improved reliability. Besides, support and assembly of the first and the second induction magnetic poles (38L, 38R) in outer rotor (13) is simplified.
EFFECT: simpler structure of rotor supporting the induction magnetic poles, improving reliability of rotating electric machine.
16 cl, 39 dwg
SUBSTANCE: in proposed magnetoelectric generator the rotor of which is provided with constant magnets (3) and (4), and stator contains two parallel plates (5) and (6), between which annular windings (7) are arranged, according to this invention the rotor is made of two parallel discs (1) and (2) fixed on shaft, on each of which ring-shaped rows of constant magnets (3) and (4) are arranged on surfaces facing each other and located in each row at equal distance; polarity of constant magnets of each row alternates. At that, poles of constant magnets of one row face opposite poles of constant magnets of other row, and annular windings (7) of stator are made in the form of equal trapezoids the lateral sides (8) and (9) of which are located radially relative to rotor rotation axis, and sections (11) and (12) of annular windings (7) in bases of trapezoids are bent through an arc; annular windings (7) are inserted into each other in pairs. At that, distance ℓ between sections (11) and (12) of annular windings (7) in bases of trapezoids exceeds width b of ring-shaped row of constant magnets.
EFFECT: increasing efficiency coefficient and reducing starting moment of generator, and decreasing noise level during generator operation.
SUBSTANCE: electric generator is proposed for a wind-driven plant, comprising a stator, a rotor with a base and a cover, magnets and a flat coil. The magnets are installed on the cover and the base along a ring with a certain gap, and there is a flat coil installed between the magnets with a minimum gap, which is closed by circular plates at two sides. The flat coil is made of three windings located in radial gaps of a matrix. The matrix consists of an outer and an inner parts. Circular plates and the matrix are made of a dielectric non-magnetic material, and the base with the rotor cover are made of a magnetically conductive material. The magnets on the cover and the base are arranged as alternating with opposite poles, at the same time the magnets installed on the cover and the base opposite to each other also have the opposite poles.
EFFECT: simplified design of an electric generator for a wind-driven plant with simultaneous increase of its efficiency factor.
7 cl, 9 dwg
SUBSTANCE: invention describes direct rotation generator that includes holder of iron cores and rotating shaft arranged on holder of iron cores. The first and the second rotating discs are located on two corresponding ends of rotating shaft. The first iron core is located on holder of iron cores, and the first winding is located at the periphery of holder of iron cores. The first sealing plate is located on the first rotating disc; the first magnet is located on the first rotating disc or on the first sealing plate, and surface of the first magnet and surface of the first sealing plate share one surface. The fourth magnet is located on the second rotating disc. The first magnet and the fourth magnet correspond to two ends of the first iron core, and poles of the first and the fourth magnets, which face each other, are opposite. One end of the first iron core includes liquid tank that is filled with magnetic liquid; at that, end of the first iron core, which is filled with magnetic liquid, contacts the first sealing plate. The main magnetic flux of direct rotation generator and magnetic flux created with induced current are horizontal and parallel to iron core, which considerably reduces the impact of resistance on rotation of iron core and magnets.
EFFECT: saving of energy for generation of electric energy and increase in generator efficiency.
10 cl, 5 dwg
SUBSTANCE: in single-phase electric motor containing rotor and stator with the main and auxiliary poles with pole tips and windings offset relative to each other through the half of pole division of the system, along the axes of poles of the main phase and in stator yoke adjacent to them and in pole tips there made are non-magnetic through gaps; stator yoke is one and the same for both systems of poles, and poles of auxiliary phase and stator yoke and pole tips, which are adjacent to them, are one-piece. According to the invention, non-magnetic gaps of poles of the main phase, stator yoke adjacent to them and pole tips are made with formation of saturation bridges in the area or poles of the main phase, or stator yoke adjacent to them, or pole tips, or simultaneously in the area of stator yoke and pole tips.
EFFECT: simpler manufacturing procedure of single-phase asynchronous motor with auxiliary winding and increased starting torque.
SUBSTANCE: invention relates to the field of electric engineering and may be used in an automated electric drive and systems of automatics. In the proposed inverted valve motor, comprising a stator with an m-phase winding and a rotor comprising an external bushing and permanent magnets, according to the invention, a stator is installed inside the motor, and a rotor comprises an external bushing, on the inner surface of which there is a magnetic system made of 12 pre-magnetised and cut elements, besides, the magnetisation angle of each segment is identified in accordance with the following formula: αSn= 90°(N - 1), where N-an order number of a segment in a shell, the number of pairs in poles of the rotor magnetic field complies with the number of pairs of the stator winding poles.
EFFECT: technical result achieved by this invention consists in increased power and dynamic characteristics of inverted valve motors (IVM).
2 cl, 6 dwg
SUBSTANCE: electric motor comprises a body (1), where a stator yoke (2) is placed with explicit-pole teeth (3), excitation coils (4) from a winding wire with polyimide-fluoroplastic insulation. On a shaft (6) there is a rotor (7) mounted with similar teeth (8) without a winding by number by two teeth less than on the stator. Between the teeth (3) of the stator and teeth (8) of the rotor there is a non-magnet working gap (10), along which cooling sea water passes. To prevent contact corrosion of electric steels of packages of the stator, rotor, body and shaft, discs (11) from magnesium alloy are pressed onto free ends of the rotor shaft, and between the stator teeth there are tyre treads (5) pressed from the same alloy. Discs (11) and tyre treads (5) have a tight electric contract with packages of the rotor (7) and the stator (2).
EFFECT: higher reliability, operability, durability and energy characteristics of valve-inductor electric motors of open design by higher efficiency of electrochemical protection of inner active parts against contact corrosion with their submersion into sea aggressive water - electrolyte.
SUBSTANCE: in a universal commutator electrical machine using for operation process a magnetic field of anchor reaction as a source of excitation flow arranged without a special winding or magnets and with a winding-free inductor, according to this invention, the inductor is divided in the circumferential direction into parts in the middle of its pole ledges with air gaps.
EFFECT: increased capacity in order to increase machine capacity with a winding-free inductor.
FIELD: machine building.
SUBSTANCE: proposed plant comprises housing accommodating motor stator with multiphase winding, compressor compression radial-flow stage flow section fixed elements, housing cover accommodating stator elements of plant rotor magnetic suspension system bearings, and plant rotor carrying rotor elements of bearings and compressor and motor rotary assemblies. Note here that motor stator magnetic core is made up of sections, their number complying with that of compression stages. Magnetically and electrically not conducting separation cylinders are arranged between said sections. Note here that stator winding is shared by all sections and laid in core section and separation cylinder grooves. Every integrated rotary assembly of compressor and motor comprises impeller. Said impeller inlet has guide channels to feed gas to impeller inlet while motor rotor section is located there outside. Note also that magnetic coupling between motor and rotor sections is ensured by fixed cylinders made from electrically nonconducting materials with built-in cores made up of thin stacks of radial plates of electric steel.
EFFECT: decreased overall dimensions.
2 cl, 2 dwg
SUBSTANCE: multipolar magnetic system in the form of a circular cylinder comprises 2·P external pole magnets, 2·P internal pole magnets and 2·P interpolar magnets, connected into a mosaic structure, where P is a number of pole pairs. Interpolar magnets are magnetised tangentially, and external and internal pole magnets - radially. According external and internal magnets are magnetised in opposite directions. Interpolar and pole magnets adjoin each other with opposite poles. The cross section of an external pole magnet represents a figure limited with an external arc with a central angle α=360°/(2·P) of the ring and two chords, drawn from arc ends and crossing on the bisector of the angle α. The cross section of an internal pole magnet represents a figure limited with an internal arc with a central angle α=360°/(2·P) of the ring and two chords, drawn from arc ends and also crossing on the bisector of the angle a. Interpolar magnets are made so that they supplement external and internal pole magnets to the circular cylinder.
EFFECT: production of a maximum value of workflow induction at specified dimensions along both sides in a radial direction.
SUBSTANCE: electric machine contains a stator (1), a rotor (2), an external blower (3), the stator core (1) assembled of electrotechnical steel sheets designed as having concentric projections (9) within the outer diameter zone with ventilation holes (10) therein. During the stator assembly each sequential sheet (group of sheets) of the stator core is tangentially shifted relative to the preceding sheet (group of sheets) by a distance of the pitch of ventilation holes (10) in the core sheets concentric projections (9). Envisaged in the structural element (6) for the stator support on the external blower (3) side are air-directing enclosures (14), ventilation holes (16) and windows (15) for cooling air passage.
EFFECT: electric machine cooling improvement.
2 cl, 3 dwg
SUBSTANCE: active element represents two-sectional winding from isolated current conducting tape that has narrow transverse notches alternating from one and the other sides of the tape and forming slots in section ends at tape winding. The slots of two sections are shifted to the half of rotor magnet pole pitch. The beginning and the end of the tape of each section are connected to the switchboards that control the signals of rotor position sensor. The winding is located in the gap between rotor magnet and magnetic core and is mounted directly to the engine housing providing a better heat removal.
EFFECT: increase of engine moment by means of heavy current supply through active element.
SUBSTANCE: inductor generator includes static stator (1) that consists of central cylindrical core (2) and two side rods (3) located around and symmetrically to the core (2), the core and the rods have common foundation (4), the rods front parts are done in the form of sectors with arc length equal to π/2, near the stator there is a salient-pole rotor (5) that has the central part (6) contacting the stator core (2) with a gap and two poles (7) performed in a form of sectors with arc length equal to π/2, i.e. equal to the sectors arc length of stator rods. Note that the section area of rotor pole (7) sector is equal to section area of stator (1) rod (3) sector, rotor poles (7) are arranged parallel to stator rods, there is an excitation winding (8) in a form of a coil at the central cylindrical core (2). There is power winding (9) at the side rods (3) covering the corresponding rods and performed in a form of coils. Rotor shaft (10) is connected to the mechanism that activates rotor rotation.
EFFECT: creation of inductor generator that has simple structure and able to generate electric energy in a form of one-phase or three-phase current with high coefficient of efficiency.
9 cl, 5 dwg
FIELD: electrical engineering; mechanical design of commutatorless magnetoelectric machines.
SUBSTANCE: 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.
EFFECT: enhanced manufacturability.
3 cl, 2 dwg