Multi-loop armature winding for besasavy dc machines |
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IPC classes for russian patent Multi-loop armature winding for besasavy dc machines (RU 2122270):
 Two-pole commutator electric machine / 2079953
 Method for manufacturing of electric machine rotor winding / 2368995
Invention is related to the field of electric engineering and concerns technology for manufacturing of electric machine rotor winding. Method is suggested for manufacturing of electric machine (10) rotor winding, comprising at least four excitation poles (P) installed in stator (11), collector rotor (13), having grooves arranged along circumference and pole teeth (Z), number of which differs from number of excitation poles, sections (S) of winding and the same number of collector plates (L), number of which is at least twice more than number of pole teeth (Z). As sections (S) are wound onto pole teeth by winding wire in continuous mode, after fixation of winding wire (17) on initial plate (La) on the first pole - tooth (Z1) the first section (S1) of winding is wound with selected angle shift (φ0) relative to initial plate (La), then winding wire (17) with specified pitch (Y) along collector is fixed on another collector plate (L), which is a final plate (Le) for wound section, then serially from each collector plate (L) winding section (S) is wound onto pole tooth (Z) with lowest deviation (Wf) of selected angle shift (φ0) from electric angle identified by pole division of stator, afterwards winding wire (17) is entered in contact with another plate (Le), which is spaced by specified pitch (Y) along collector until all winding sections (S) are wound on pole teeth (Z).
 Equalising connection of second type / 2392720
Invention relates to the field of electric engineering, namely to DC electric machines with duplex lap winding of anchor, when deciding factor is simplicity and manufacturability of assembly of applied equalising connections of the second type. Beginning of equaliser is connected to collector plate of considered section, and connection itself is arranged in the form of turn laid till the middle of axial length of anchor slots, where this section is installed.
 Electric machine with fractional tooth winding / 2414798
Proposed electric machine (10) includes at least eight excitation poles (P) located in stator (11) and collector rotor (13) with pole teeth (Z) the number of which differs from the number of excitation poles; at that, on pole teeth there located is at least one section (S) of winding the ends of which are connected to commutator bars (L) which are electrically connected in pairs to each other by means of contact jumpers (K), are supplied with electric power through carbon brushes (B) and the number of which is divisible by the number of pole teeth. At that, according to this invention, the above number of commutator bars (L) in this electric machine is divisible by the half of the number of pairs (P) of excitation poles, but is not divisible by the number of pairs of poles, which is even.
 Method for manufacture of electric machine rotor windings manufacture as well as electric machine with rotor winding manufactured by this method / 2488935
One manufactures rotor winding with at least four poles (P) of the stator (11) excitation and a collector rotor (13) having grooves (N) and pole cogs (Z) (the number whereof is other than that of excitation poles), coils (S) wound onto individual pole cogs and the same number of collector plates (L) being at least twice in excess of that of the pole cogs. Each coil beginning with the first one (S1) is wound onto the pole cog for which angular deviation (Wf) from the angle determined by the polar pitch (Pt) is the minimum. For simplification of the winding wire (17) laying within the zone of its connection to the collector plates it is stipulated that, at least for the coils (S) of the winding line (B) which is the last to be wound (and preferably - for all the winding coils), the winding wire (17) being placed in contact with the collector plate (L) between two coils (S) is led to the plate (L) on one side and led from the plate - on the other side. Positioned between the grooves (N) wherefrom the winding wire (17) is led to the plate (L) and the groove whereto (N) the wire is led from the plate is at least one pole cog (Z) but no more than to pole cogs (Z).
 Electric motor with multilayered rhomb-shaped windings / 2359387
Present invention relates to electrical engineering, particularly to electric motors, with windings with an air core, and can be used in rotors of dc motors, as well as in stators of electronic-commuted (EC) motors. The electric motor contains a winding with an air core, made from several separate windings, made from conductors. The separate windings are superimposed on each other and have such a shape that there is shifting in the region of at least two opposite corners. According to the first version of the invention, half the sides of the separate windings is in an inner hollow cylinder, and the other half is in an outer hollow cylinder without overlapping the inner hollow cylinder. According to the second version, half of the sides of separate windings is in a first plane, and the other in a second plane, without overlapping the first plane. The overlapping separate windings together form a flat winding, which comprises a first plane and a second plane. The separate windings are provided with an extra amount of conductor material as allowance in the shifting region, which forms preferably a U-shaped or loop-shaped bulge on the inner contour of the separate windings.
 Torque transmission assembly for superconducting rotating machines / 2418352
Proposed rotor assembly includes superconducting winding assembly located in cryogenic zone of rotor assembly. The above rotor assembly includes torque transmission assembly which according to this invention includes the first and the second pipes which are located with a radial gap outside the assembly of superconducting winding and which pass along longitudinal axis of rotor assembly. Besides, superconducting rotating machine containing such torque transmission assembly is proposed.
 Electric generator for wind-driven plant / 2423773
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.
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(57) Abstract: Usage: multi-loop armature winding for besasavy DC machines medium and high power with a single layer of windings. The inventive multi-loop armature winding with the number of moves m is made in the form 2z polyinosinic groups containing upsides of the sections in each, located on the 2P pole divisions of the surface of the armature core. To reduce the magnitude of the ripple voltage between adjacent collector plates and the magnitude of the unbalanced EMF parallel branches belonging to different turns of the winding, the ratio of the number polyinosinic groups 2z to the number of pole divisions 2P selects even ( z/p is an even number), not a multiple of m, the number of moves is odd, preferably m = 3.5, and the number of sides of the sections in polyinosinic groups even, but not more than up= 4 (6). Section of the armature winding are staggered so that one half of the incoming reel in a group of sections is shorter step, and the other extended. Effect: improved commutation. 2 Il. The present invention relates to the field of electrical engineering and can be used for besasavy DC machines (MPT). the electric MPT with multi-way asymmetrical windings of the armature by pairwise removal of cores of the main pole in the direction located between the extension pole [1]. However, this approach complicates the design of MPP due to the need of manufacturing sheets of cores of the main poles of various configurations, has limited capacity, as the amount of displacement of the cores of the main poles should not lead to the violation of the terms of the commutation switching sections due to the penetration of main field poles in the zone switching, reduces the useful power MPT, since the offset of the cores of the main poles it is necessary to reduce the magnitude of the pole arc of the main poles due to the penetration of main field poles in the zone switching. Also known recommendations developed in [2], on the most favorable combinations of parameters of the three-way loop windings of the armature for MPT with toothed anchors that reduce the ripple voltage between adjacent collector plates, due to the presence of higher harmonic components of the magnetic field of the main pole. In [2] it is shown that this is achieved when the ratio of the number of grooves z to the number of pairs of poles p z/p = odd number, the reduction step, sections = 0, and the number of collector plates in the groove/z = up= 2 or 4, and with the reduction of the step section = 0.3 with respect to z = 5, where the reduction step section, expressed the to rule, to reduce the magnitude of the non-magnetic gap between the armature and the poles of the magnetic system, the armature winding is a single layer, and in MPT serrated anchor windings are dual layer. As the prototype is set considered in [3] single-layer patentowa the armature winding containing section, the sides of which are distributed on the surface of the armature core in the form of alternating series polyinosinic groups on the 2p pole divisions in the amount 2z period /Z and including upthe sides of these sections. For traction motor is considered patentowa loop winding, containing five of the parties to the partition (up= 5) in polyinosine group (grouped coil). The peculiarity of this winding is that polyethylene groups containing straight side sections extending from collector plates alternate with polyethylene groups containing reverse side sections and belonging to other sections parallel branches, forming a so-called "conditional grooves" with anchor gear above polyethylene group housed in one and the same groove, and polyethylene group with straight sides would be at the top of the groove, alucinogenos group and five back next polyinosine groups together form a "conditional groove". As follows from the text of the article [3], this traction engine made four, 2p = 4 and has 230 coils, i.e., when up= 5z = 46. So when up= 5 for this engine is the ratio z/p = odd number, z/p = 23, with the implementation of sections of the winding as with diametrically, and with longer or shorter steps. The disadvantages proposed in [3] variant multi-armature winding, first, is the fact that in the winding when the selected parameters (z/p = odd number) order dangerous harmonics, which determines the frequency of the ripple voltage between adjacent collector plates, is of low magnitude and is found by the formula = z/mp n/m, n < m and is =3.If the distribution curve of the magnetic field harmonic components, the procedure for which is the same order as dangerous harmonics, defined above, between adjacent collector plates are higher ripple voltage. For the considered armature winding, made with up= 5, the uneven distribution of voltage between adjacent collector plates, caused by alternating forward and backward sides of the sections of the armature winding. The highest voltage is osmatrivaem polyinosine group and the straight side of the first section follows the specified polyinosine group, since EMF in these sections are shifted by an angle exceeding in (up+ 1 + 2*) times the angle between adjacent sides of the sectionsclocated in the same polyinosine group = 360 (up+ 1 + 2*)cand, consequently, the magnitude of the EMF of these sections will be significantly different. Angleccan be expressed through the anglez"according to subcolony division", i.e. the angle between adjacent polyethylene groups formed by straight sides of the partitions, ac=z/2(up+*), andz= 360/(z/p) and*the relative thickness of the strip between adjacent polyethylene groups, which can be expressed through the anglec,*= (p-c)/c. Herep- the angle between the sides last section in polyinosine group and the first section in the following for the above polyinosine group. The disadvantage of this winding is also the inability to install the levelers of the 2nd kind, since this winding is made with an odd number of collector plates to the number of pole pairs (p = 230/2 = 115) that affects the working conditions of the brush contact. The proposed technical solution to reduce the magnitude of the ripple between adjacent Koli, for besasavy MPT is recommended to use multi-layer windings with an odd number of moves m = 3, 5, etc. even when the ratio z/p, but not a multiple of m, i.e., the ratio z/p should not be equal to m, where is a positive integer, and an even number of sides of the sections in polyinosine group up= 2.4 and so on, and sections armature winding is performed in this step, and one half sections of the total number of upsections considered polyinosine group has shortened step INMCand the other half of the sections constituting the following for the second half of the first sections of this polyinosine group, elongated Ubeatsby the same amount, which reduced the step of the first half group of sections, i.e., |to| = |d|.It should be noted that because besasavy MPT, as a rule, the armature winding is a single layer, it is not feasible to apply a multi-winding with a large number of moves and a large number of sides of the sections in polyinosine group, and preferable are an odd number of moves, not exceeding 5, and an even number of sides of the sections in polyinosine group not to exceed 4 (6). In single-layer multi-loop coil with the proposed combination of paramam, and, consequently, reduces the magnitude of the ripple voltage between adjacent collector plates, as with higher order harmonics the amplitude of the harmonic component of the induction in the distribution curve of the induction in the non-magnetic gap is reduced. The run winding with respect to z/p is an even number gives an opportunity to enter a small reduction step sectionsto= - up/4 for one (the first) half of the total number of sections polyinosine the group consisting of straight sides of the sections (step sections INMC= /2p - up/4) and a small elongation step d= + up/4 for the other (second) half sections of the same polyinosine group (step sections INbeats= K/2p + up/4). In case of equality relations z/p is an odd number reducing or lengthening the step sections have to take great due to the fact that at a distance y = are the reverse side sections. For multi-winding with the proposed parameters z/p, upthat also ensures a more uniform distribution of voltage between adjacent collector plates by performing sections of the armature winding speed. In addition, the proposed winding always allows you to set ravnitelnaya even number, since K = zupand sop= (zup)/p. The levelers of the 2nd kind of connect the collector plate belonging to different turns of the winding, and thus helps to reduce ripple voltages between adjacent collector plates and equalize the distribution of voltage on the collector plates. The invention is illustrated in the drawing (Fig. 1) and circuit armature winding with the procedure of connecting the conductors to the collector on the double pole division (Fig. 2). In Fig. 1 adopted sequentially numbered as polyinosinic groups from 1 to 2, and conductors straight sides of the sections marked with number one bar at the top (1', 2', ..., 2z'), and reverse sides of the sections marked with number two strokes at the top (1", 2", ... , 2z). In Fig. 2 conductors polyinosinic groups formed by the straight sides of the sections, shown in solid lines and marked as mentioned above, the room with the bar at the top, and the conductors polyinosinic groups formed by the opposite sides of the sections, the dotted lines and with two strokes at the top. For multi-loop coils, is shown in Fig. 1 and in Fig. 2, number of conductors included in polyfusion group with an odd number, the muscle group with an even number, for example, 2, 4,. .. following the above and formed in the opposite sides of the sections, but differ in the number of strokes. In Fig. 1 shows a detailed diagram of the location on the surface of the armature core 2z polyinosinic groups multi-loop single-layer winding with two sections in the coil group (up= 2) 2p pole divisions for even the relationship z/p, so that the distance of each pole of the dividing are odd ordinal (1, z/p+1, 2z/p+1, and so on) polyethylene the group consisting of straight sides of the sections, and its the first conductors (1', (z/p+1)', (2z/p+1)' and so on) are located symmetrically with respect to the neutral axis of the respective pole divisions. The conductors of the armature winding is distributed over the surface of the armature core in the form of alternating series polyinosinic groups containing upsections each, with a period of /z In Fig. 2 presents a diagram of the multi-loop coil with the number of moves m, containing two side sections each polyinosine group up= 2, and the first section included in polyethylene group formed by straight sides of the sections made with a reduced step YMCand the latter is extended FROMbeats. So, for example, p is'dnik (K/2p)" (the reverse side of the section) is displaced to the left from the neutral axis, separating the next pole dividing by the distance measured in the collector divisions to= -up/4 so that the step section 1 is INMC= /2p - 1/2 and in this case reduced by 0.5 collector division to= - 0.5 in. The second section 2 (conductors 2', (2p + 1)") of the same conditional groove" performed with elongated step INbeatsand its return conductor (2p+1)" is shifted to the right from the neutral axis, separating the following pole divide by distance, also expressed in manifold divisions, respectivelyd= up/4. The step section 2 is expressed by the formula Ybeats= K/2p + 1/2 and in this case increased by 0.5 collector division. When the rotation of the armature winding in a magnetic field generated by the excitation winding of the MPT in the conductors of the armature winding, forming parallel branches of the same moves, induced EMF vector addition which find the EMF of the parallel branches of the various turns of the winding. Due to the asymmetry of the execution of multi-windings of the armature MPT, as they are not the condition of symmetry 2p/a is not an integer, and because of the nonsinusoidal shape of the distribution of the magnetic field in the air gap EMF different parallel ve is in the distribution curve of the induction B = f(x/), where x is the current coordinate - pole division, and may be dangerous harmonica, a period which coincides with the periodicity of the arrangement of conductors of a single turn winding. Harmonic composition distribution curve of induction in the non-magnetic gap besasavy MPT depends on many factors. In particular, the harmonic spectrum of B = f(x/) is determined by the shape of the nonmagnetic gap, uneven saturation of individual sections of the magnetic circuit MPT and its asymmetry. Typically, the amplitude of the harmonics with high order decreases. However, the low order harmonics (3, 5, 7) this pattern may not be observed. As a percentage of the amplitude of the first harmonic amplitude of the harmonics of a higher order vary from 10-15% for the 3rd, 5th and 7th harmonics up to 0.1-0.5% for 17-th harmonic and above. Thus the magnitude of the unbalanced EMF is determined by not only the first harmonic, but the harmonics of a higher order. Additionally, when the rotation of the armature winding between adjacent collector plates occurs pulsating voltage, the order and the amplitude of which depends on the harmonic content of the curve B = f(x/) and placement of conductors armature winding on the armature core. Under unfavorable location, provodnikov cause a deterioration in performance ITT reducing the effective capacity, the "serristori" collector. In single-layer multi-pass loop windings with the proposed combination of parameters z/p, m, up,MC,beats, |to| = |d| these adverse factors significantly attenuated, since the choice of z/p = even number increases by half the order dangerous harmonics and allows you to take small magnitude of contraction and elongation of the step sections and the selection of the same number of sections located in the same "conditional groove", with shorter and longer steps, respectively, reduces the unbalanced EMF and more uniform distribution of voltage between the collector plates. In conclusion, we can formulate the main advantages of the proposed windings: 1. Application of multi-layer windings for besasavy MPT with respect to z/p = even number and up= 2,4 reduces the cost of manufacture by reducing the flow of insulating materials. 2. Increases reliability of the MPT by reducing the maximum voltage between adjacent collector plates and a more even distribution between the collector plates connected to secci EMF different parallel branches, belonging to different turns of the winding, and therefore increases the service life of the collector and brushes, as well as their wear. 4. Several increases the efficiency of the MPT by reducing the incremental losses caused by the flow of surge currents in the armature winding. 5. In multi-windings with the proposed settings allows you to set the levelers of the 2nd kind, because for them the condition z/p = an even number, and hence K/p = an even number, which gives the opportunity to align EMF parallel branches of different moves. The influence of the magnetic asymmetry for besasavy MPT due to the large size of the nonmagnetic gap appears less so to install the levelers of the 1st kind is not strictly necessary. In [3] also considered the option patchtool winding, polyethylene groups which contain on one side of the partition (up= 1) (distributed coil). In this case, the ratio of z and p is an odd number of z/p = 115, and hence the ratio K/p is an odd number and the ability to install the levelers of the 2nd kind in this case is absent. In addition this option patchtool armature winding requires increased consumption insulation storename sections, under full voltage MPT. Multi-loop armature winding for besasavy DC machines containing m moves and composed of sections, the sides of which are located on the armature core in the form of a single layer of a number of polyinosinic groups on the 2p pole divisions in the amount 2z with the period of alternation of /z generated from updirect or reverse sides of these sections, characterized in that the armature winding is performed with an odd number of moves, preferably m = 3.5 and the ratio of the number polyinosinic groups to the number of pole divisions z/p is an even number that is not a multiple of m, i.e., z/p is not equal to m, and each polykatoikia group formed from an even number of sides of the sections, preferably up= 2 or 4 in each hand, so that the first half of the sections polyinosine group formed following each other their straight sides, made with a reducedto= -up/step 4THEMC= /2p - up/4, and second half sections of the same polyinosine group with extendedd= up/step 4 THEbeats= K/2p + up/4, where m is the number of turns of the winding; p - number of pole pairs of the machine; z is the number of coil groups obmo the Steen; THEMC,beatsthe steps are shortened and elongated sections of the armature winding, expressed in manifold divisions; to,d- magnitude of the reduction or elongation steps of the sections of the armature winding relative to the diametrically step, expressed in manifold divisions.
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