Single-phase alternating current motor |
|
IPC classes for russian patent Single-phase alternating current motor (RU 2516413):
 
 Inductor electric machine / 2507666
Inductor electric machine comprises a stator with a working winding and an excitation winding in the form of a coil, a rotor placed inside a stator and mounted on a non-magnetic shaft, magnetically conductive shields, equipped with ledges, between which there is an external closed magnetic conductor with adjacency to it, at the same time there are three excitation windings, every of which is equidistant from the adjacent ones by 120° and is made according to the type of a three-phase three-bar transformer, the rods of which are arranged in the same plane and are oriented tangentially to a generatrix of the rotor made in the form of a steel cylinder, which have channels drilled along the perimeter, where copper electrically isolated conductors are inserted according to the shape of cylindrical springs, which electrically connect at the ends of the rotor with copper rings, having holes that are coaxial to copper cylindrical springs.
 Synchronous electric motor / 2499344
In the proposed synchronous electric motor "П"-shaped magnetic conductors (1) of the stator are made as laminated from electric steel and are combined into a single structure with the help of two rings (3), made of non-magnetic material. On each "П"-shaped magnetic conductor (1) there is a phase (2) of stator winding. The rotor (4) is made of ferromagnetic material, installed on the shaft (5) and has a cylinder shape with two teeth displaced along the axis and having identical angular position. At the same time supply of stator winding phases is carried out with AC voltages shifted by phase to the angle that is less than the space shift of "П"-shaped magnetic conductors.
 Synchronous electric motor / 2499343
Synchronous electric motor comprises a magnetic conductor of a stator (2) with teeth (3), made of laminated electric steel and resting against a body (1) and has a three-phase winding (4). The rotor (5) is made in the form of a hollow cylinder and comprises ferromagnetic teeth. With the help of the non-magnetic disc (9) the rotor is fixed on the shaft (8). The inner magnetic conductor (7) of the stator (2) is made in the form of a hollow cylinder from laminated electric steel, which is fixed on the body (1) with the help of a non-magnetic bushing (10) and has radially magnetised permanent magnets (6) on the outer surface, which are arranged opposite to the teeth (3) of the stator (2) and having alternating polarity. Due to design of the rotor (5) in the form of a hollow cylinder and introduction of an additional magnetic conductor (7) of the stator with permanent magnets (6), located to the teeth (3) of the stator.
 Synchronous jet engine with electromagnetic reduction / 2497264
Synchronous jet engine with electromagnetic reduction includes a toothed rotor with the number of teeth zp, a toothed rotor with uniformly distributed teeth zc, the number of which is related to the number of teeth of rotor zp by the ratio zp = zc ± p, where: p = 1, 2, 3… number of pairs of poles of m-phase winding located in the stator slots, each phase of which consists of semi-phases that are parallel and opposite connected to each other with diodes connected relative to the beginning of those semi-phases; those semi-phases are offset relative to each other through 180 electric degrees, and each semi-phase consists of p coil groups connected to each other. With that, according to this invention, coil groups of each semi-phase are connected parallel to each other, the number of slots of stator zn, in which m-phase winding is arranged, is equal to zn=zc/k, where: k= 1, 2, 3…, besides, m capacitors connected to each other are connected to m-phase winding, which at m equal to 3 are connected to each other as per a star network or a triangle network, along with phase windings.
 Single-key electric drive / 2459341
In a single-key electric drive a DC voltage source consists of two independent voltage sources (1) and (2), at the same time the plus of a source (1) is connected to the plus of a capacitor (3), with the start of a part (4) of a winding and a cathode of a diode (5). The minus of the source (1) is connected with the first output of a semiconductor key (6), with the minus of the capacitor (3) and with the start of a part (7) of the winding. The plus of a source (2) is connected to the second output of the semiconductor key (6), with the plus of a capacitor (8) and the end of the part (4) of the winding. The minus of the source (2) is connected with the minus of the capacitor (8), the end of the winding part (7) and the diode (5) anode.
 Non-contact electric reduction machine with salient-pole armature / 2416859
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.
 Electric reduction machine with salient-pole armature / 2416858
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.
 Contactless reducer electric machine with electromagnet excitation / 2407134
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.
 Electric reducing machine with electromagnetic excitation / 2401499
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.
 Synchronous machine of inductor type / 2384931
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.
 Electromagnetic device with reversible generator and motor operation / 2516373
Invention relates to electrical engineering. The electromagnetic device has a stator and a rotor rotating between facing surfaces of the stator and bearing a plurality of magnets distributed at regular intervals along its periphery. The magnets are arranged such that they form a sequence of alternately opposite poles on the surfaces of the rotor directed towards the stator, and the stator comprises two sets of independently supported magnetic yokes located at both sides of the rotor in front of the magnets. The magnetic yokes have two axially oriented arms, the end surfaces of which, when the rotor is in a fixed state, at least partly face a pair of successive magnets on a same surface of the rotor.
 Stator of rotating electric machine excited by permanent magnets / 2516367
Stator has a variety of segments located close to each other in the circumferential direction. According to the invention the above segments have teeth and slots passing in the longitudinal direction of the stator, at that the neighbouring segments touch each other at the segment boundary and teeth of the neighbouring segments are located so that at the segment boundary a tooth of one segment touches the tooth of the neighbouring segment, herewith the total width of the teeth touching each other at the respective boundary is bigger than the total width of the majority of teeth which are not placed at the segment boundaries or all teeth which are not placed at the segment boundaries directly, at that the minority of teeth not placed directly at the boundary of the specified segments has the same width, which is bigger than the total width of the majority of teeth which are not located directly at the segment border.
 Synchronous micromotor with electromagnetic unipolar excitation / 2516286
Invention refers to the field of electric engineering, in particular, to electric machines, and relates to manufacture of synchronous micromotor with unipolar excitation. A synchronous micromotor with unipolar excitation contains a stator with a standard core with a three-phase power winding that creates a rotary magnetic field of the stator and a direct-current excitation winding that creates an excitation flux, as well as a cylindrical solid rotor of iron-copper alloy divided by a non-magnet conductive layer into two magnet isolated parts - two cores of the rotor. According to the invention, at that in order to increase reliability of the synchronous motor operation contactless electromagnetic unipolar excitation is carried out when two cores of the rotor form two permanent magnet poles with invariable different polarity, the north N and the south S ones, at their interaction with the rotary magnetic field of the stator the synchronising torque is created and availability of solid cores at the rotor ensures asynchronous start without a starting winding.
 Permanent magnet machine / 2516270
Permanent magnet machine contains a fixed stator and a movable rotor made of non-magnet material, in the stator frame there are U-shaped imbricated cores with windings, the rotor contains operating components made as the permanent magnets placed in the openings in the form of slots with size l and l1, at that the number of slots m is equal to the number of the permanent magnets. At that the stator frame of the permanent magnet machine is made as a hollow cylinder with at least 3 groups of U-shaped imbricated cores with windings placed at its inner surface. Each group contains at least 3 U-shaped imbricated cores with windings interconnected in series and shifted in regard to each other per the distance L. The rotor is placed inside the stator and consists of a hollow cylinder with the permanent magnets placed in its slots and shifted in regard to each other per the angle of α=120°, poles of the permanent magnets protrude the limits of the hollow cylinder per a value Δ: Δ=d-l', where Δ is a value of the magnet poles protrusion outside the limits of the hollow cylinder; d is a circle diameter defined by the inner diameter of the stator and sizes of the magnet core; l' is a value of the air gap between the magnet core and the magnet.
 Single-phase asynchronous motor / 2516250
Invention is related to the field of electric engineering, namely to single-phase asynchronous motors with a starting winding, and can be used for electric tools and household appliances, for example in refrigerant compressors subject to essential shaft load at start-up and common operating conditions at the mains low voltage. In a single-phase asynchronous motor containing a rotor and a stator with slots with placed main and auxiliary windings with magnet axes shift in regard to each other per a half of polar pitch according to the invention in the area of stator slots located in the areas of the main winding magnet axes there are through nonmagnetic gaps filled with air or nonmagnetic inserts.
 Stator of rotating electric machine with constant excitation / 2516246
In the middle of the first coil group (10a) there is a middle tooth (8a), which has the first MB width of the middle tooth. A stator (5) has the second group (10b) of coils. The first and second groups of coils are placed in the circumferential direction (U), directly in sequence one after another. Between the first and second groups of coils there is the first edge tooth (9), which has the first RB width of the edge tooth. In essence the first RB width of the edge tooth is equal to RB=a·ZB, and the first MB width of the middle tooth is equal to MB=(2-a)·ZB. The coefficient a is bigger than 0 and less than 1.
 Electric machine with axial off-centre coolant flow and respective method / 2516234
Invention is related to the field of electric machines. The electric machine has at least one radial cooling groove (16) and axial cooling channels. The first cooling channels (18) with their central axis pass at another radial height in regard to a rotor axis (11) in comparison with the second cooling channels (19). In at least one radial cooling groove (16) there is a spacer (29) by which the first coolant flow (28) from the first cooling channels (18) can be directed to one of the second cooling channels (19). Due to that the second partial packet (T2) in the flow direction can be supplied with colder air when it passes through the first partial packet (T1) in the cold area, for example, close to the shaft.
 Permanent magnet, method of its production, rotor and motor with internal permanent magnet (ipm) / 2516005
Permanent magnet production process comprises the steps that follow. a) Fabrication of permanent magnet (1). b) Cracking of permanent magnet (1) to get two or more separate parts (13). c) Recovery of permanent magnet (1) by jointing rupture surfaces of separate adjacent parts (13) together.
 Magnetoelectric engine / 2515999
In a magnetoelectric engine rotor contains a disc fixed at a shaft whereat a ring-shaped line of permanent magnets with alternating polarity is mounted. A stator contains two parallel plates and the stator windings are placed between them. The stator plates are equipped with cores of electric steel, at which the stator windings are placed. The cores are made as two rings and there are protrusions at their surfaces faced to each other. Width of the protrusion B is equal to half of the permanent magnet C width. Protrusions of one core are off-centred in regard to protrusions of the other core to the half of the permanent magnet C width. The rotor disc is placed between the cores of the stator windings.
 Magnetoelectric generator / 2515998
In a magnetoelectric generator a rotor contains a disc fixed at a shaft whereat a ring-shaped line of permanent magnets with alternating polarity is mounted. The magnets are regularly spaced in regard to each other. A stator contains two parallel plates and the stator windings are placed between them at cores of electric steel, which are fixed at the stator plates. The cores are made as two rings and there are protrusions at their surfaces faced to each other. Width of the protrusion B is equal to half of the permanent magnet C width. Protrusions of one core are off-centred in regard to protrusions of the other core to the half of the permanent magnet C width.
 Rotor magnetic system / 2244370
Rotor magnetic system has more than two magnetically permeable steel laminations with pole horns formed by prismatic tangentially magnetized N-S permanent magnets placed inside laminated stack; inner and outer diameters of laminations are uninterrupted and rectangular prismatic magnets are installed inside them so that distance over outer arc between external planes of two adjacent magnets of unlike-polarity poles is shorter than that over internal arc between same planes; magnets do not contact one another and have at least one projection on inner diameter for coupling with rotor shaft.
|
FIELD: electricity. SUBSTANCE: invention relates to electric engineering, particularly to electric machines and covers design features of a single-phase alternating current motor. The suggested single-phase alternating current motor contains a stator with teeth-forming slots for the primary winding and slots for an auxiliary winding. The primary winding can be connected to the alternating current supply source in order to generate the main magnetic field with the main magnetic axis, the auxiliary winding can be connected to the power supply source through an operating capacitor to generate an auxiliary magnet field with an auxiliary magnetic axis, at that the above main and auxiliary axes set the rotating vector by means of vector summation and this vector represents the resultant magnetic field with permanent magnetic induction at operation of the motor at the rated load. Herewith according to the invention the teeth group located at the auxiliary magnet axis has a higher magnetic conductivity in comparison with other teeth, at that the least tooth of all teeth forming slots for the primary winding is bigger that the biggest tooth of all teeth forming slots for the auxiliary winding. EFFECT: providing higher operating performance for the single-phase motor, in particular, at the load different from the rated one. 10 cl, 3 dwg
The technical FIELD The invention relates to single phase AC motor, containing a stator forming the teeth of the slots for the main and auxiliary windings. Provided for connecting the primary winding to the power source to generate the primary magnetic field from the main magnetic axis, and connecting the auxiliary winding to the power source through the working capacitor to generate an auxiliary magnetic field and the auxiliary magnetic axis. The LEVEL of TECHNOLOGY The engine of the type specified above may be a conventional induction motor of the compressor and the linear actuator motor. Working capacitor provides a 90-degree phase shift between the voltages of the primary and secondary windings so that the magnetic fields of the two windings are shifted in time. The magnetic field created by the main and auxiliary windings have a direction generally defined main and auxiliary magnetic axes, and their position depends on the placement of the windings. By summing the vectors, the major and minor axes specified rotating vector representing the resultant magnetic field is essentially constant magnetic induction at rated load of the engine. To ensure the optimum ratio of the magnetic induction is the weight of the engine and therefore, to obtain good performance engine designed stators, in which grooves for laying the windings have different forms. In the document GB 887047 presents stator slots located between the first radial hole axis passing through the angle of stator plates, and a second radial hole axis passing through the midpoint between two adjacent cores, formed with a continuous increase of the step of stator teeth, and their width, and continuous reduction in cross-sectional area of the groove and the depth in the gap between the first and second axis. Therefore, changing the dimensions of the slots depends on the angles of the stator. In the documents DE 10029549 A1/US 20030178906 A1 theory of vector rotation applied to engines of the type described and its disclosure is incorporated by reference. Usually the engine is designed to operate at rated load. When a load value of the magnetic flux is constant over the full period of the AC voltage, this means that the main and auxiliary windings contribute equally in the generated rotating magnetic field and the resulting magnetic field has a constant magnetic induction. It usually mean when they talk about the symmetry of the electric motor, and that his condition is preferred. When the load deflection from its nominal value the contribution of the auxiliary winding does not correspond to the contribution of the primary winding, and there is a violation of the symmetry of the electric motor. Therefore, in most cases, the preferred operation of the engine under load as close as possible to its nominal value. The INVENTION In accordance with the purpose of the invention proposed versions of the engine with higher performance, in particular, when the load is different from the nominal one. In accordance with the first aspect of the invention provides a motor of the type specified above, in which a group of teeth located on the auxiliary magnetic axis, has a higher magnetic permeability compared with the other teeth. Due to this feature, due to the higher magnetic permeability, provided stronger support auxiliary magnetic field than that of the main magnetic field, and the field weakening resulting from the power supply through the working capacitor, balanced by the greater magnetic permeability. With increasing engine load to a level above its nominal value, possibly lowering the voltage on the auxiliary winding, accompanied by the occurrence of unwanted phase shift in the secondary winding of the deviation from the ideal value of phase shift equal to 90 degrees. The reason for this with the her is what auxiliary winding is usually powered by the capacitor providing the required and very close to the 90 degrees phase shift relative to the voltage of the main phase. This means that the power supply auxiliary winding is usually weaker than the main. To compensate for this phenomenon, it is preferable to place these different from other teeth relative to the directions of the main and auxiliary magnetic axes so as to provide the best magnetic permeability of the auxiliary magnetic axis, where the magnetic force is most sensitive to weak power supply auxiliary phase. In accordance with the invention is provided by the teeth of various sizes, shapes and with different material properties, such as their location relative to the main and auxiliary magnetic axes that different magnetic permeability contributes to maintaining a symmetrical rotating vector at load values that differ from the nominal value. Thus provided with the improved performance of the motor is increased in the range of applied torque. For the main magnetic axis forth in the description of the invention adopted the axis that defines the direction of the resulting magnetic field created ampere-turns of the main winding and the auxiliary is agnaou axis was the axis, defines the direction of the resulting magnetic field created ampere-turns of the auxiliary winding. While the magnitude and direction of resultant magnetic field due to the ampere-turns of the primary winding is set to the main rotating vector. Similarly, the magnitude and direction of resultant magnetic field due to the ampere-turns of the auxiliary winding is defined auxiliary rotating vector. The sum of the main and auxiliary rotating vectors results in a vector, hereinafter referred to as "stator rotating vector, which determines the magnitude and direction of the magnetic field created by the stator, i.e. the magnetic field, determining the contribution of the stator during rotation of the rotor. Additional magnetic field is produced by the rotor so that the motor, as such, is driven is actually due to the interaction of two different systems of the magnetic field and the magnetic field set stator rotating vector and the magnetic field created by the rotor. When this motor in accordance with the invention is designed for the rated load, and it is at rated load stator rotating vector has constant length, describing a constant magnetic induction. In accordance with the invention, the difference value is th magnetic permeability of teeth used to maintain a constant magnetic induction due to the support of the two rotating vectors, main and auxiliary, which is weaker and therefore more susceptible to the influence of the load, a larger or smaller nominal value, namely a rotating vector, the generated power is fed through the working capacitor. In particular, the difference values of the magnetic permeability due to execution of teeth of different width so that at least some of the teeth have a smaller or larger width compared to the other teeth or form groups of teeth of the specified width. For the width of the tooth accepted size perpendicular to the axis, passing in the radial direction from the center axis around which the rotation of the rotor relative to the stator. If the teeth have a variable width depending on the distance from the center, i.e. from the bottom of the groove to the free end of the prong, in this case, the width of the tooth adopted its width at the midpoint between the bottom of the groove and the free end of the prong, that is, in place adjacent to the winding placed in the groove, or otherwise, for the width of the tooth adopted its average width along the full length of the tooth, that is, between the bottom of the groove and the free end of the prong. The difference values of the magnetic permeability also, at least partially, caused by the difference between the full-forming teeth grooves for the primary winding, coincident with the magnetic axis where gateley phase, and the full-forming teeth grooves for the auxiliary winding, coincident with the magnetic axis of the core phase. The difference values of the magnetic permeability also, at least partially, caused by the difference between the average width of the forming teeth of the slots for the main and auxiliary windings. The average width of the forming teeth of the slots for the primary winding is, for example, about 5-15 percent, 10-13 11-12 percent or 5 percent of the average width of the forming teeth of the slots for the auxiliary winding. Able to accommodate forming the teeth of the slots for the primary winding in the zone referred to in the description of the invention to zone primary winding". This zone is provided between the teeth of the primary winding located on the opposite edges of the zone of the main winding. The difference values of the magnetic permeability may be achieved by gradually increasing the width of teeth, depending on the distance of the teeth of the main winding to the center of the zone of the main winding so that the size of the teeth in the area of the primary winding is essentially larger than the outside of this zone. The smallest of these teeth forming slots for the primary winding is larger than the large teeth from the number of teeth forming slots for the auxiliary winding. The difference values of the magnetic permeability also, measures at the part, due to the difference in properties of the materials forming the teeth of the slots for the main winding and material properties of teeth forming slots for the auxiliary winding. Provided by the possibility that the stator forms a magnetic circuit located on a circle, covering all the slots, while the magnetic core contains the main part in the main winding, and an auxiliary part located at the auxiliary winding and the main part of the magnetic circuit provides a lower magnetic permeability compared with the auxiliary part. The magnetic permeability of the main part of the magnetic circuit, for example, is 80-95 percent of the magnetic permeability of the auxiliary part of the magnetic circuit with the same width of the main and auxiliary parts. DETAILED description of the INVENTION Next, the embodiments of the invention are described in more detail with reference to the following drawings, which depict the following: Figure 1 is known from the previous prior art stator, shown in cross section made perpendicular to the axis of rotation; Figure 2 - image of the stator and the magnetic field in the case of non-ideal load; Figure 3 is a stator in accordance with the invention, shown in cross section made perpendicular to the axis of rotation; Figure 1 shows a stator of the first plate 1, which can be used for manufacturing the stator of the single-phase AC motor. The stator plate has such a shape that when adding a package from the same plates, the formation of a number of grooves 2 for laying the windings. The slots separated by teeth shown and marked once by reference 3 in figure 1. The primary winding 4 is conventionally depicted in two of these grooves and the auxiliary winding 5 is conventionally depicted in the other two of these slots, with the remaining slots in the final design also laid winding, but in order to simplify the drawing shows only eight grooves with the windings. Usually provided for the connection of the primary winding directly to a power source, not shown in the drawing, while the auxiliary winding is made with the possibility of connection to a power source through the working capacitor, providing a phase shift. When connecting the primary winding to the power source, it creates a magnetic field from the main magnetic axis, shown by the vector 6. When connecting auxiliary winding to the power source through the working capacitor it generates an auxiliary magnetic field from the auxiliary magnetic axis, shown by the vector 7. Main and auxiliary magnetic field is formed through tiroidea magnetic field. The resulting magnetic field may be displayed by summing vectors, and denote the resulting vector 8 in the description of the invention used the term "rotating vector. Rotating the vector represents a magnetic field having essentially constant magnetic induction when the engine is running at rated load, i.e. when the estimated workload of the motor. In the drawing shown in figure 1, the main and auxiliary magnetic field and the rotating vector is shown at different points in time, and therefore depicted rotating the vector represents the vector summation shows vectors of the primary and auxiliary magnetic fields. Rotating the vector 8 vector defined by summing the vectors of the primary and auxiliary magnetic field at a particular point in time. In the shown embodiment of the invention the grooves are located around the opening 9. This hole is provided for mounting the rotor functioning as an internal rotor. The invention may also be used in constructions with external rotor, in which the teeth and, consequently, the grooves facing radially outwards in the direction of the rotor rotating around the stator. Figure 2 shows the electric motor of the type described working with loading the coy, exceeding the nominal value. In this case there is a change in the length of the rotating vector as a rotation field, and as a result, as shown in the drawing, the displacement of the free end of the rotating vector 8 is on the ellipse. This situation is undesirable. Figure 3 the stator in accordance with the invention is depicted in cross section made perpendicular to the axis of rotation. In this case, the stator teeth have a variable width so that the teeth in the primary winding, that is located on the auxiliary magnetic axis is wider than the teeth of the auxiliary winding located on the main magnetic axis. Figure 3 the two most wide tooth indicated by the numeral 10, and two of the most narrow - figure 11. Due to the higher resulting magnetic permeability in the direction of the auxiliary magnetic axis provided improved performance in non-ideal load, that is, when the load values that differ from the nominal value. 1. Single-phase AC motor, containing the stator (1) with the forming teeth (3) slots (2) for the primary winding (4) and grooves for auxiliary winding (5), the primary winding (4), configured to connect to a source of AC power to generate the primary magnetic field from the main magnetic axis, and an auxiliary winding, done is nnow with the ability to connect to a power source through the working capacitor to generate an auxiliary magnetic field and the auxiliary magnetic axis, moreover, these primary and secondary axis through vector summation ask rotating the vector (8)representing the resulting magnetic field is essentially constant magnetic induction when the engine is running at rated load, characterized in that the group of teeth (10), located on the auxiliary magnetic axis, has a higher magnetic permeability than other teeth, and the lowest tooth of the teeth forming slots for the primary winding is larger than the maximum tooth from the teeth, forming grooves for the auxiliary winding. 2. The engine according to claim 1, characterized in that the difference of values of the magnetic permeability is provided, at least partially, due to the different width, at least some teeth. 3. The engine according to claim 1 or 2, characterized in that the difference of values of the magnetic permeability is provided, at least partly, due to differences between the full-forming teeth grooves for the primary winding, corresponding to the magnetic axis of the support phase, and the full-forming teeth grooves for the auxiliary winding, corresponding to the magnetic axis for the main phase. 4. The engine according to claim 1 or 2, characterized in that the difference of values of the magnetic permeability is provided, at least partly, due to differences between the CPE is it the width of the forming teeth of the slots for the main winding and an average width of forming the teeth grooves for the auxiliary winding. 5. The engine according to claim 4, characterized in that the average width of the forming teeth of the slots for the primary winding is approximately 5-15 percent relative to the average width of the forming teeth of the slots for the auxiliary winding. 6. The engine according to claim 5, wherein forming the teeth of the slots for the primary winding are located in the primary winding between the teeth of the primary winding located on the opposite edges of the zone of the main winding, and the teeth are made with a gradual increase in width depending on the distance of the teeth of the main winding to the center of the zone of the main winding. 7. The engine according to any one of claims 1, 2, 5, 6, characterized in that the difference of values of the magnetic permeability is provided, at least partially, the difference between the properties of the materials forming the teeth of the slots for the main winding and the materials forming the teeth grooves for the auxiliary winding. 8. The engine according to any one of claims 1, 2, 5, 6, characterized in that the stator is formed of a magnetic core located on a circle, covering all the slots, while the magnetic core contains the main part located in the main winding, and an auxiliary part located at the auxiliary winding, and through the auxiliary part of the magnetic circuit provided with a higher magnetic permeability than the main customerdataprovider. 9. The engine of claim 8, characterized in that the permeability of the main part of the magnetic circuit is 80-95 percent of the magnetic permeability of the auxiliary part of the magnetic circuit. 10. The engine according to any one of claims 1, 2, 5, 6, 9, characterized in that the stator is formed a number of groups of teeth, with one group of teeth have the same width different from the width of the teeth of the other group.
|