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Winding design, rotating electrical machine and method for manufacturing of rotating electrical machine

Winding design, rotating electrical machine and method for manufacturing of rotating electrical machine
IPC classes for russian patent Winding design, rotating electrical machine and method for manufacturing of rotating electrical machine (RU 2533163):
Another patents in same IPC classes:
Integrated winding of synchronous machine for 2p=2, z=18 Integrated winding of synchronous machine for 2p=2, z=18 / 2528179
Invention enables to produce energy-efficient electrical machines, particularly high-performance, high-torque low-noise asynchronous motors. The disclosed integrated winding of an asynchronous machine with the number of pairs of poles 2p=2, with the number of grooves z=18 for the number of parallel braches a=1 is made with spacing y=1-10 and 6 has coils, wherein the number m"з" of turns of odd coils and the number m"тр" of turns of even coils satisfies the relationship m / " т р " m = " з " 3 .
Stator of rotating electric machine with constant excitation 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.
Rectifying free-running asynchronous generator Rectifying free-running asynchronous generator / 2516217
Invention is related to the sphere of electric equipment and may be used for production of rectifying asynchronous generators of stand-alone power plants. Technical result is attained by the reason that in a rectifying free-running asynchronous generator with capacitor excitation and a stator winding made of six coil group having outputs, according to this invention, the first output of the winding is taken from the united end of the fourth and beginning of the first coil groups, the second output of the winding is taken from the united end of the first and beginning of the second coil groups, the third output is taken from united end of the sixth and beginning of the third coil groups, the fourth output is taken from the united end of third and beginning of the fourth coil groups, the fifth output is taken from the united second and beginning of the fifth coil groups, the sixth output is taken from the united end of the fifth and beginning of the sixth coil groups, in parallel to the above stator windings there are six in-series delta connected excitation capacitors, which can connect these capacitors and outputs of the second, fourth and sixth capacitors as per the wye-wye connection scheme and the load is connected to these outputs in compliance with the voltage value and phase number matching the required load.
Multifunctional free-running asynchronous generator Multifunctional free-running asynchronous generator / 2516013
Invention is related to the sphere of electric equipment and may be used for production of asynchronous generators of stand-alone power plants. Technical result is attained by the reason that in a multifunctional free-running asynchronous generator with capacitor excitation and a stator winding made of six coil group having outputs the first output of the winding is taken from the united end of the fourth and beginning of the first coil groups, the second output of the winding is taken from the united end of the first and beginning of the second coil groups, the third output is taken from united end of the sixth and beginning of the third coil groups, the fourth output is taken from the united end of third and beginning of the fourth coil groups, the fifth output is taken from the united end of the second and beginning of the fifth coil groups, the sixth output is taken from the united end of the fifth and beginning of the sixth coil groups, in parallel to the above stator windings there are six in-series delta-connected excitation capacitors, which can connect these capacitors and outputs of the second, fourth and sixth capacitors as per the wye-wye connection scheme and the load is connected to these outputs in compliance with the voltage value and phase number matching the required load.
Asynchronous generator with eight-pole stator winding Asynchronous generator with eight-pole stator winding / 2516012
Invention is related to the sphere of electric equipment and may be used in asynchronous generators of stand-alone power plants. One part of a phase winding with a large vector sum of load and exciting currents is made with a heavy-gage wire, while the other part of the phase winding with a less vector sum of load and exciting currents is made with a wire of the lesser gage. In the suggested asynchronous generator with the eight-pole stator winding out of twenty four coil groups (from the first up to the twenty fourth) and excitation capacitors, according to the invention, the first output is taken from the united beginning of the first coil group and ending of the sixth one, the second output is taken from the united end of the second coil group and beginning of the third one, the third output is taken from the united end of the fourth coil group and beginning of the fifth one, the fourth output is taken from the united end of the nineteenth coil group and beginning of the twentieth coil group, the fifth output is taken from the united end of the twenty first coil group and beginning of the twenty second coil group, the sixth output is taken from the united end of the twenty third coil group and beginning of the twenty fourth coil group; at that the end of the first coil group is connected to the beginning of the seventh coil group, the beginning of the second group is connected to the end of the eighth group, the end of the third coil group is connected to the beginning of the ninth group, the beginning of the fourth group is connected to the end of the tenth group, the end of the fifth coil group is connected to the beginning of the eleventh group, the beginning of the sixth group is connected to the end of the twelfth group, the end of the seventh coil group is connected to the beginning of the thirteenth group, the beginning of the eighth group is connected to the end of the fourteenth group, the end of the ninth coil group is connected to the beginning of the fifteenth group, the beginning of the tenth group is connected to the end of the sixteenth group, the end of the eleventh coil group is connected to the beginning of the seventeenth coil group, the beginning of the twelfth group is connected to the end of the eighteenth group , the end of the thirteenth coil group is connected to the beginning of the nineteenth coil group, the beginning of the fourteenth group is connected to the end of the twentieth group, the end of the fifteenth coil group is connected to the beginning of the twenty first coil group, the beginning of the sixteenth group is connected to the end of the twenty second group, the end of the seventeenth coil group is connected to the beginning of the twenty third coil group, the beginning of the eighteenth group is connected to the end of the twenty fourth group, at that the excitation capacitors are connected to the first, second and third outputs and the generator load is connected to the fourth, fifth and sixth outputs.
Winding of electric machine Winding of electric machine / 2509402
Front links for connection of turn groups are arranged above the end surface of the tooth area of the core with that part of the slots, where the winding layer is available, rods of which they connect, places of connections of turn front links with rods of that layer of winding, above which there are front links for connection of turn groups, arranged at the side of centres of the core slots. Places of connections of at least most other front links with the rods of the upper layer of the winding are arranged at the side of the tooth surface of the core, and places of connections of these front links with rods of the lower layer of the winding are arranged at the side of the core back.
Winding of stator of three-phase alternating-current electric machines Winding of stator of three-phase alternating-current electric machines / 2508593
Stator winding includes three single-phase windings formed with equal number of coils arranged in slots. Coils are connected to each other as per equal schemed providing spatial displacement of axes of windings through 120 degrees. Each of the single-phase windings throughout double pole division of the stator is formed with 2Z/2pm coils that include Z/2pm groups with similar number of coils in groups. Each of the groups of coils has different width of coils included into it and different number of turns forming coils in comparison to other groups of coils. Besides, coils of one of the groups have minimum width with minimum number of turns. Width and number of coil turns of every next group have different width and number of coil turns of the previous group. Coils with larger width and larger number of turns are arranged concentrically relative to coils with minimum width and minimum number of turns. Some parts of the volume of slots, which remain free after laying of coils of this single-phase windings, are used for arrangement of coils of two other single-phase windings that are made in a similar way.
Low noise induction motor Low noise induction motor / 2507664
Low noise induction motor comprises two mutually dependent combined windings, one of which is assembled as "star", and the second one - as "delta". These windings are laid into slots so that resulting vectors of induction of magnetic flows of pole pairs in identical phases of "star" and "delta" form an angle of 30 el. degrees between each other.
Autonomous induction generator with bipolar stator winding Autonomous induction generator with bipolar stator winding / 2498483
In the suggested autonomous asynchronous generator bipolar stator winding including twelve coil groups consists of a triangle scheme formed by the second and eighth, fourth and tenth, sixth and twelfth coils groups with the first, second and third outputs to which excitation capacitors are connected and star scheme formed by the first and seventh, third and tenth, fifth and eleventh coil groups with the fourth, Fifth, sixth and seventh outputs; at that the first output is taken from the beginning of united beginnings of the second and twelfth coil groups; the second output - from united beginnings of the fourth and sixth coil groups; the third output - from united beginnings of the eighth and tenth coil group; the fourth output - from beginning of the first coil group; the fifth output - from beginning of the fifth coil group; the sixth output - from united beginnings of the third, seventh and eleventh coil group; the seventh output - from beginning of the ninth coil group. The end of the first coil group is connected to the end of the seventh coil group; the end of the second coil group is connected to the end of the eighth one; end of the third coil group is connected to the end of the ninth one; end of the fourth coil group - with the end of the tenth one; end of the fifth coil group - with the end of eleventh one; end of the sixth coil group is connected to the end of the twelfth coil group; additionally, the first, second and third outputs of the triangle scheme and the fourth, fifth and seventh outputs of the star scheme are interconnected in pairs by compensation capacitors connected in-series and common points of these capacitors connection have outputs to connect load to the generator.
Six-phase winding of alternating current machine Six-phase winding of alternating current machine / 2498481
According to this invention winding of alternating current machine with fractional number of slots Q per a pole and phase (both for Q> 1 and Q< 1) is made as per scheme "two stars under 30 el. degrees", with denominator C corresponding to the relationship C = 6·k ± 1, where k = 1, 3, 5 ….
Stator winding of dual-speed induction generator Stator winding of dual-speed induction generator / 2248082
Proposed stator winding has 24 coil groups and field capacitors. Finishing lead of coil group 8i + 5 is connected to starting lead of coil group 8i + 8; finishing lead of coil group 8i + 8, to finishing lead of coil group 8i + 15; starting lead of coil group (8i + 15), to finishing lead of 8i + 18. Starting leads of coil groups 8i + 18 are interconnected at neutral point. Starting lead of coil group 8i - 7 is connected to finishing lead of coil group 8i - 4; starting lead of coil group 8i - 4, to starting lead of coil group 8i + 3, finishing lead of coil group 8i + 3, to starting lead of coil group 8i + 6. First phase leads are formed from finishing leads of coil groups 8i - 7, second phase leads, from interconnected starting lead of coil group 8i + 5 and finishing lead of coil group 8i + 6, where i = 1, 2, 3, number 24 being subtracted from that higher than 24. Windings are connected in star or in star-star whose leads are connected to field capacitors and load for different current frequencies. Such winding design makes it possible to produce off-line power supplies for different current frequencies and same voltage at fixed speed of drive motor.
Stator winding of dual-speed induction generator Stator winding of dual-speed induction generator / 2248083
Proposed stator winding has six pairs of concentrically disposed variable-pitch coil groups with single-layer coils of external coil groups and double-layer ones of internal coil groups. Connected in first phase are first and fourth pairs of coil groups, in second phase, third and sixth coil groups, in third phase, fifth and second coil groups. Differentially connected in each phase are variable-pitch coil groups of different pairs. Starting leads of internal coil groups of first, third, and fifth pairs are interconnected at neutral point. Phase leads are formed by finishing leads of coil groups of first, third, and fifth pairs. Additional phase leads are formed from interconnected starting leads of external coil groups and finishing leads of internal ones of fourth, sixth, and second pairs connected in star or star-star; field capacitors are connected to phase leads in compliance with generator load. Proposed design of this winding makes it possible to produce power supplies for different current frequencies at same voltage and same speed of drive motor.
Composite stator winding of induction generator Composite stator winding of induction generator / 2249289
Proposed stator winding has 18 coil groups. Finishing leads of coil groups k and (k + 9), where k = 1, 2, 3 through 9, are paired. Phase leads are taken from starting leads of coil groups 3, 9, 15 and constitute star connection; Additional phase leads constituting delta connection are formed from starting leads of coil groups 4, 6, 8, from integrated starting leads of coil groups 10, 12, 14, from integrated starting leads of coil groups 16, 18, 2, from integrated starting leads of coil groups 5, 7, from integrated starting leads of coil groups 11, 13, and from integrated starting leads of coil groups 17, 1. Field capacitors are connected to phase leads in compliance with desired power supply conditions of load. Such design of proposed winding makes it possible to obtain different voltages across generator output at fixed speed of drive motor.
Composite stator winding of induction generator Composite stator winding of induction generator / 2249290
Proposed composite stator winding has 18 coil groups. Finishing lead of coil group 1 is connected to starting lead of coil group 10; finishing lead of coil group 3, to starting lead of coil group 12; finishing lead of coil group 5, to starting lead of coil group 14; finishing lead of coil group 7, to starting lead of coil group 16; finishing lead of coil group 9, to starting lead of coil group 18; finishing lead of coil group 11, to starting lead of coil group 2; finishing lead of coil group 13, to starting lead of coil group 4; finishing lead of coil group 15, to starting lead of coil group 6; finishing lead of coil group 17, to starting lead of coil group 8. Star constituting leads are taken from starting leads of coil groups 3, 9, and 15. Additional delta-constituting leads are taken from integrated finishing leads of coil groups 4, 6, 8, from integrated finishing leads of coil groups 10, 12, 14, and from integrated finishing leads of coil groups 16, 18, 2; from integrated starting leads of coil groups 5, 7, from integrated starting leads of coil groups 11, 13, and from integrated starting leads of coil groups 17, 1. Field capacitors are connected to winding star or delta depending on desired voltage across generator output. In this way different voltages can be obtained across generator output at constant speed of drive motor.
Multifunction stator winding of induction generator Multifunction stator winding of induction generator / 2249291
Proposed stator winding has six concentrically disposed pairs of different-pitch coil groups with single-layer coils of external groups and double-layer ones of internal groups. Coil groups of pairs 1 and 4 are included in first phase, those of pairs 3 and 6, in second phase, and coil groups of pairs 5 and 2, in third phase. Different-pitch coil groups of different pairs are differentially connected in each phase. First phase leads are taken from finishing leads of external coil groups of pairs 1, 3, 5. Second phase leads are formed by integrated starting leads of external coil groups and from finishing leads of internal coil groups of pairs 4, 6, 2. Connected to starting leads of internal coil groups of pairs 1,3, 5 is additional eight-pole low-voltage winding; field capacitors and main load are connected to first and second phase leads. Such design of stator winding makes it possible to build off-line power supplies for different current frequencies at different voltages around capacitor-excited induction generators with drive motor rotating at fixed speed.
Composite stator winding of induction generator Composite stator winding of induction generator / 2249292
Composite stator winding of induction generator designed to build off-line power supplies for different output voltages at forced rotor speed has 36 coils. Finishing lead of coil 1 is connected to that of coil 4; starting lead of coil 4, to finishing lead of coil 19; starting lead of coil 19, to that of coil, 22; finishing lead of coil 5, to that of coil 8; starting lead of coil 8, to finishing lead of coil 23; starting lead of coil 23, to that of coil 26; finishing lead of coil 9, to that of coil 12; starting lead of coil 12, to finishing lead of coil 27; starting lead of coil 27, to that of coil 30; finishing lead of coil 13, to that of coil 16; starting lead of coil 16, to finishing lead of coil 31; starting lead of coil 31, to that of coil 34; finishing lead of coil 17, to that of coil 20; starting lead of coil 20, to finishing lead of coil 35; starting lead of coil 35, to that of coil 2; finishing lead of coil 21, to that of coil 24; starting lead of coil 24, to finishing lead of coil 3; starting lead of coil 3, to that of coil 6; finishing lead of coil 25, to that of coil 28; starting lead of coil 28, to finishing lead of coil 7; starting lead of coil 7, to that of coil 10; finishing lead of coil 29, to that of coil 32; starting lead of coil 32, to finishing lead of coil 11; starting lead of coil 11, to that of coil 14; finishing lead of coil 33, to that of coil 36; starting lead of coil 36, to finishing lead of coil 15; starting lead of coil 15, to that of coil 18. First phase leads are formed by starting leads of coils 5, 17, and 29. Second phase leads are formed by integrated finishing leads of coils 22, 26, and 30, by integrated finishing leads of coils 34, 2, and 6, and by integrated finishing leads of coils 10, 14, and 18. Third phase leads are formed by integrated starting leads of coils 9 and 13, by integrated starting leads of coils 21 and 25, and by integrated starting leads of coils 33 and 1. Generator also has field capacitors connected to any phase leads in compliance with desired output voltage of generator.
Stator winding of dual-speed induction generator Stator winding of dual-speed induction generator / 2249900
Proposed multifunctional stator winding has 24 coil groups. Finishing lead of coil group (8i +5) is connected to starting lead of coil group (8i + 8); finishing lead of the latter is connected to finishing lead of coil group (8i + 15) whose starting lead is connected to finishing lead of coil group (8i + 8). Starting lead of coil group (8i + 7) is connected to finishing lead of coil group (8i + 4) whose starting lead is connected to starting lead of coil group (8i + 3) and finishing lead of the latter, to starting lead of group (8i + 6). First phase leads are formed by finishing leads of coil groups (i - 7). Second phase leads of main winding are formed of interconnected starting lead of group (8i + 5) and finishing lead of group (8i + 6). Third leads are formed of starting lead of coil groups (8i + 18) with additional sixteen-pole winding connected to them (i = 1, 2, 3, number 24 being subtracted from number greater than 24).Main winding uses star or star-star connection and is connected to load and to field capacitor; low-voltage load is connected to third phase leads. Such design of winding makes it possible to produce off-line power supplies for different current frequencies and voltages at constant speed.
Composite stator winding of induction generator Composite stator winding of induction generator / 2249901
Proposed winding has thirty six coils. Finishing lead of coil 1 is connected to finishing lead of coil 6 whose starting lead is connected to starting lead of coil 19; finishing lead of the latter is connected to finishing lead of coil 24. Finishing lead of coil 5 is connected to finishing lead of coil 10 whose starting lead is connected to starting lead of coil 23; finishing lead of the latter is connected to finishing lead of coil 28. Finishing lead of coil 9 is connected to finishing lead of coil 14 whose starting lead is connected to starting lead of coil 27; finishing lead of the latter is connected to finishing lead of coil 32. Finishing lead of coil 13 is connected to finishing lead of coil 18 whose starting lead is connected to starting lead of coil 31, finishing lead of the latter is connected to finishing lead of coil 36. Finishing lead of coil 17 is connected to finishing lead of coil 22 whose starting lead is connected to starting lead of coil 35; finishing lead of the latter is connected to finishing lead of coil 4. Finishing lead of coil 21 is connected to finishing lead of coil 26 whose starting lead is connected to starting lead of coil 3; finishing lead of the latter is connected to finishing lead of coil 8. Finishing lead of coil 25 is connected to finishing lead of coil 30 whose starting lead is connected to starting lead of coil 7; finishing lead of the latter is connected to finishing lead of coil 12. Finishing lead of coil 29 is connected to finishing lead of coil 34 whose starting lead is connected to starting lead of coil 11; finishing lead of the latter is connected to finishing lead of coil 16. Finishing lead of coil 33 is connected to finishing lead of coil 2 whose starting lead is connected to starting lead of coil 15; finishing lead of the latter is connected to finishing lead of coil 20. First phase leads run from starting leads of coils 5, 17, and 29. Second phase leads are brought out from interconnected starting leads of coils 24, 28, 32, from interconnected starting leads of coils 36. 4, 6, and from interconnected starting leads of coils 12, 16, 20. Third phase leads are formed from interconnected starting leads of coils 9 and 13, from interconnected starting leads of coils 21 and 25, and from interconnected starting leads of coils 33 and 1. Field capacitors are connected to first and second phase leads and load, to first, second and first phase leads in any combination. Such design of this winding makes it possible for generator to produce different output voltages.
Multifunction stator winding of induction generator Multifunction stator winding of induction generator / 2249902
Proposed multifunction winding has twelve pairs of concentric single-layer internal coils and double-layer external ones in each pair; first phase includes pairs 1, 4, 7, 10; second phase has pairs 3, 6, 9, 12; third phase has pairs 5, 8, 11, 2; single- and double-layer coils of different phases are differentially connected in phase. First phase leads are formed by starting leads of single-layer coils of pairs 1, 3, 5. Second phase leads are formed by interconnected starting leads of double-layer coils and finishing leads of single-layer ones of pairs 2, 10, 12. Third leads are formed by finishing leads of double-layer coils of pairs 1, 3, 5 and connected to additional twelve-pole winding. Main winding uses star or star-star connection and its leads are connected to load and to field capacitors; low-voltage load is connected to third leads. Such arrangement of winding makes it possible to build off-line power supplies for different current frequencies and voltages around capacitor-excited induction generators at constant speed of drive motor.
Stator winding of dual-speed induction generator Stator winding of dual-speed induction generator / 2249903
Proposed stator winding has twelve pairs of concentrically disposed external single-layer coils and internal double layer coils in each pair, first phase including pairs 1, 4, 7, 10, second phase, pairs 3, 6, 9, 12, and third phase, pairs 5, 8, 11, 2 ; single- and double-layer coils of different pairs are differentially connected in each phase. First phase leads are taken from starting leads of single-layer coils of pairs 1, 3, 5. Second phase leads are formed from interconnected starting leads of double-layer coils and finishing leads of single-layer coils of pairs 2, 10, 12. Finishing leads of double-layer coils of pairs 1, 3, 5 form neutral point. Winding uses star or star-star connection and is connected to load and to field capacitors for different current frequency. Such design of winding makes it possible to build off-line power supplies for different current frequency at constant speed of drive motor.

FIELD: electricity.

SUBSTANCE: winding design for a rotating electrical machine includes the core with slots and a coil comprising the first and second windings combined by their intercrossing. Each straight section of the coil is inserted to one of two slots made with the preset interval so that the core is assembled at the core.

EFFECT: reducing end size of the coil.

17 cl, 17 dwg

 

The technical field

[0001] the Present invention relates to a winding structure and a rotating electric machine. In particular, the present invention relates to reducing the size of the end coils of a rotating electric machine (motor or generator), with the design of the winding in the form of a distributed winding.

The level of technology

[0002] as a similar technology JP4234749B reveals the design of the winding in the form of a distributed winding for rotating electrical machines. The design of the winding includes winding in the form of a conventional winding, which is wound around the electric wire, while the two side surfaces intersect. Winding in each phase has coenobite curved sections on the end parts of the coil, and coenobite curved sections are made close to each other in the direction of the width. In addition, the winding in each phase is wound on many of the slots of the iron core of a stator of a rotating electric machine.

A brief statement of the substance of the invention

[0003] However, a certain winding passes over and under the adjacent winding in a very narrow region, which includes the form of a knee-shaped bend. As a result, the winding force is subject to considerable strain. When the size of the form a knee-shaped bend increases, crobiological strain value, ultimately hampered reducing end of the coil size.

[0004] considering the above problems, this invention has the task to reduce butt size of the coils of a rotating electric machine, which includes the design of the winding in the form of a distributed winding.

[0005] According to the aspect of this invention, the design of the winding for a rotating electric machine includes: a core that includes grooves; and a coil including a first winding and a second winding, combined by crossing a first winding and a second winding each other. Each straight section of the coil is inserted in either of the two grooves, performed at set intervals, so that the coil is assembled on the core.

Brief description of drawings

[0006] the invention is further explained in the description of the preferred embodiments with reference to the accompanying drawings, in which

[0007] Fig.1 is a view in cross section along the axial direction of the rotating electrical machine,

Fig.2 is a view in perspective of a stator of a rotating electric machine,

Fig.3A is a view in perspective depicting an example of the coil

Fig.3B is a view in perspective showing another example of the coil

Fig.4 is a detailed view in cross-section, the image is ajaxim part of the stator, deployed along the direction of the circumference,

Fig.5A is a view in perspective of the first winding or the second winding,

Fig.5B is a side view of the first winding or the second winding,

Fig.5C is a view in cross section of the first winding or the second winding.

Fig.6 is a partial view in cross section of the stator,

Fig.7 is a schematic diagram of the windings of rotating electrical machines,

Fig.8A is a diagram depicting the first step of the method of manufacture for the stator,

Fig.8B is a diagram depicting the second stage of the method of manufacture for the stator,

Fig.8C is a diagram depicting a third step of the method of manufacture for the stator,

Fig.8D is a diagram depicting the stator hosting winding,

Fig.9A is a view from the side showing the state in which the straight sections on one side of the set of coils simultaneously inserted into the slots,

Fig.9B is a view from the end face of the stator after the completion of the installation, and

Fig.10 is a diagram depicting the design of the winding, in which the usual winding is applied to the winding in the form of a traditional and a distributed winding.

A detailed description of the preferred embodiments

[0008] the following is a more detailed description of a variant of implementation of this invention with the exile of left-wing is on the drawings.

[0009] Fig.1 is a schematic view in cross section along the axial direction of the rotating electric machine having a winding design according to a variant implementation. Rotating electric machine acts as a motor, generator or both.

[0010] a Rotating electric machine 1 includes a stator 2, a rotor 3 that runs coaxially with the stator 2 and the casing 4 accommodating the stator 2 and the rotor 3. The stator 2 and the rotor 3 have an essentially round shape, and the stator 2 is provided so that it encompasses the outer border of the rotor 3. The rotating shaft 5 is attached to the Central section of the rotor 3, and the rotating shaft 5 is supported rotatably through bearings 6 through the casing 4. With this design, the rotor 3 can rotate relative to the stator 2 which is fixed to the casing 4.

[0011] the Rotor 3 includes multiple permanent magnets 7, performed at regular intervals in the circumferential direction. The rotor 3 is rotated around the rotating shaft 5 by means of the reaction force of permanent magnets formed by rotating the magnetic flux provided by the body coil 11 of the stator 2.

[0012] Fig.2 is a view in perspective of the stator 2. The stator 2 includes an iron core stator 10 having essentially circular shape, and the body 11 of the coils, fixed on the inner peripheral section of the iron core 10 of the stator (stator core). The iron core 10 of the stator includes a section 10a of the main body element having essentially circular in shape, and many of the plots (10b of the tooth (teeth), radially projecting from the section 10a of the main body element. The groove 12 for placement of the body 11 of the winding is formed between adjacent sections 10b. Many sections 10b of teeth running in the peripheral direction through a predetermined angular intervals. Many of the slots 12 is also in the peripheral direction through a predetermined angular intervals.

[0013] the Body 11 of the winding includes many coils 14, being distributed on the grooves 12. Many coils 14 includes a coil 14 in the respective phases.

[0014] Fig.3A and Fig.3B are views in perspective, depicting each reel 14. Fig.4 is a partial expanded view in cross-section, depicting the stator 2 having essentially circular shape, which expands in the direction of the circumference.

[0015] As shown in Fig.3A and Fig.3B, the coil 14 includes a first coil 15 and the second coil 16. The first coil 15 and the second coil 16 constitute one coil 14 in the connection between a respective electric p is horseflies 30 in the connecting section 35. The connecting wire 30 is a metal conductor, for example copper wire. End sections 15a and 15b of the coil on the upper side and the lower side of the first winding 15 respectively include first coenobite curved sections 15aA and 15bA, curving in the direction of the axis of rotation of the rotating electrical machine 1. In addition, the end sections 15a and 15b of the coil on the upper side and the lower side of the first winding 15 respectively include second coenobite curved sections 15aB and 15bB, curving in the radial direction of the rotating electrical machine 1. It should be noted that the end sections of the coil by winding arranged on the end surfaces in the axial direction of the iron core 10 of the stator (section 10b of the tooth).

[0016] in Addition, the end sections 16a and 16b of the coil on the upper side and the lower side of the second winding 16 respectively include first coenobite curved sections 16aA and 16bA, curving in the direction of the axis of rotation of the rotating electrical machine 1. End sections 16a and 16b of the coil on the upper side and the lower side of the second winding 16 respectively include second coenobite curved sections 16aB and 16bB, curving in the radial direction of the rotating electrical machine 1.

[0017] As indicated by circles PU is Chernoy line in Fig.3A and Fig.3B, first coenobite curved sections 15aA and 15bA and second coenobite curved sections 15aB and 15bB first winding 15, respectively, and are intersected with the second coenobite curved sections 16aB and 16bB and the first coenobite curved sections 16aA and 16bA of the second winding 16. In other words, the first coenobite curved sections 15aA and 15bA first winding 15, curving in the direction of the axis of rotation, and the second coenobite curved sections 16aB and 16bB of the second winding 16, curving in the radial direction, are located opposite each other and intersect each other. Second coenobite curved sections 15aB and 15bB first winding 15, curving in a radial direction, and the first coenobite curved sections 16aA and 16bA of the second winding 16, curving in the direction of the axis of rotation are opposite to each other and intersect each other.

[0018] This configuration prevents such a situation that a certain winding passes over and under the winding collected on the adjacent groove in a very narrow region (see Fig.4 and Fig.9B). As a result, the coil is not exposed to significant deformation and compared with similar technology can decrease mechanical dimensions of the coil. In addition, it is not necessarily much to separate end sections of the coil from the grooves, and, respectively, compared with similar technology and total p is opredelennoi winding, can be significantly reduced mechanical dimensions of the coil.

[0019] As depicted in Fig.4, due to the presence of the first and second coenobite curved sections, the first winding 15 a particular coil 14 (the first coil) is inserted into the groove when passing under the end section of the first coil winding 15' another adjacent coil 14' (the second coil). On the contrary, the second winding 16' adjacent coil 14' is inserted into the groove when passing under the end section of the second coil winding 16 of the coil 14.

[0020] Additionally, the first winding 15 a particular coil 14 on the section 10b of the tooth is parallel to and overlaps the second winding 16' adjacent coils 14' with the shifted position between them (see also Fig.9B). In other words, the first winding coil 15 14 passes the area 10b of the teeth in contact with the second winding 16' adjacent coils 14' in the direction perpendicular to the axial direction of the rotating electrical machine 1 (namely, in the radial direction). The second winding 16 of a particular coil 14 on the section 10b of the tooth is parallel to and overlaps the first coil 15' adjacent coils 14' with the shifted position between them. In other words, the second winding 16 of the coil 14 is held at the site 10b of the teeth in contact with the first winding 15' adjacent coils 14' in the direction perpendicular to the axial direction of the rotating electric is th machine 1 (namely, in the radial direction). As a result, increases the fill factor of the windings and increases the output torque of the rotating electrical machine 1. It should be noted that the fill factor of the windings is obtained by dividing the full cross-sectional area of the connecting wires 30 (includes coating) inside the groove on the cross-sectional area of the groove in the direction perpendicular to the rotation axis.

[0021] the Coil 14 includes two groove having a given interval, and thus going on the iron core 10 of the stator. In other words, the straight sections of the first winding 15 and the second winding 16 (straight coil) is inserted into either of the two grooves having a given interval. In this case one groove 12a left straight section 15c of the first winding 15 is located on the radially outer side of the left straight section 16c of the second winding 16 in the rotating electric machine 1. In another groove 12b right straight section 15d of the first winding 15 is located on the radially outer side with a straight right section 16d of the second winding 16 in the rotating electric machine 1.

[0022] the range of the two grooves, which are inserted in the coil 14, namely the winding step (step coil), is set equal to two. In other words, the coil 14, the first winding and the second winding) is wound in two sections of teeth, with which the front with each other on both sides of a single groove. In this case, when all the steps of the winding can best be reduced mechanical size of the coil of the rotating electrical machine 1.

[0023] it Should be noted that at the end of the coil located on the end surface in the axial direction of the iron core 10 of the stator, the number of coils (pair of windings) is identical to the winding step. As a result, when the pitch of the winding is large, a large number of pairs of windings must be crossed coenobite curved sections and the effect of reducing the size is reduced due to gaps formed when going to the stator 2, and the small protrusions coenobite curved sections. On the other hand, when the winding step is one that is shared concentrated winding and the windings must not overlap. Thus, when the winding step is two, can achieve the maximum reduction in size.

[0024] the Number of intersections of the first coil 15 and the second winding 16 on the end section of the coil is two. When the pitch of the coils is two, and feature at least two intersections, the winding is collected in a groove, can nakativaetsa when passing just above and below the winding collected in the adjacent groove without significant bending.

[0025] Fig.5A and Fig.5B depict the details of the first coil 15 and the second coil 16. Although the first winding 15 a second winding 16 differ in shape, more or less due to the circular shape of the stator 2, the first coil 15 and the second coil 16 are essentially identical in shape. Provided that Fig.5A corresponds to the first winding 15, a view obtained by inverting Fig.5A in the direction of left/right, essentially corresponds to the second coil 16. Fig.5C illustrates a view in cross section of the winding.

[0026] the First coil 15 and the second coil 16 have the shape of a conventional winding, and combined electric wire 30 constituting the first coil 15 and the second coil 16. As a result, increases the fill factor of the winding inside the groove. Conventional winding increases the fill factor of the winding inside the groove to a level identical to the level of concentrated winding. The first and second coenobite curved sections provided on the windings in a conventional winding, to provide such a configuration, in which the first winding 15 (or the second winding 16 of a certain coil is inserted into the groove when the overlapping end section of the first coil winding 15 (or the second winding 16) other coil (see Fig.4 and Fig.9A). Thus, winding, passing over irrelevant groove, which does not winding Assembly, not blocking irrelevant groove, which leads to an increase of the fill factor of the winding.

[0027] When a winding is applied to the winding in the form of traditional the total ion distributed winding, as is shown in Fig.10, the end parts of the coil windings, wound in normal form, pass over irrelevant grooves and blocking grooves. In this case greatly reduces the fill factor of the winding inside the groove and increase the size of the rotating electrical machine, which leads to increased losses. Therefore, for conventional distributed winding is wrapped in an abnormal form and by a significant branch of the end section of the coil from the slot is not allowed to block irrelevant groove. As a result, the fill factor of the winding inside of the groove increases, but the winding is in an abnormal form, and, therefore, there is a limit to increasing the fill factor, and increases the size of the end coil.

[0028] As depicted in Fig.5A and Fig.5B, the winding is formed of two layers, wound in the form of α-winding. As a result, additionally increases the fill factor of the winding inside the groove. In addition, as shown in Fig.5C, the cross-sectional shape of the electric wire 30 (elemental wire) winding is essentially rectangular. In other words, as the electric wire winding 30 is used square wire. As a result, further increases the fill factor of the winding inside the slot.

[0029] the Number of turns of the winding is non-integer number (fraction), and location of the two conclusions 18, respectively, are assigned on the end parts on both sides. As a result, by reducing the number of turns of straight pipe posting on one side of one coil can be provided with the space used to change the phase winding, etc. in Addition, there is additional space on the external border of the end sections of the coil, and therefore, by distributing the connecting parts to the first winding and the second winding on both sides of the rotating electric machine is effectively used space and hence can decrease the size of the coil ends.

[0030] As shown in Fig.3A, the first coil 15 and the second coil 16 can form one coil 14 in the series connection between a respective electric wires 30 in the connection area 35 on the side end surface on one side of the stator 2. As a result, can decrease mechanical dimensions of the coil.

[0031] in Addition, as shown in Fig.3B, when the first coil 15 and the second coil 16 are produced by α-winding, the first winding 15 and the second coil 16 can be interconnected within a groove in the connecting section 35 straight sections 15c and 16c of the windings. The layout of the connecting section 35 in the straight sections of ammo is OK does not lead to such a situation, the coupling section 35 becomes a hindrance to education coenobite curved sections, and, therefore, can decrease the size of the coil ends.

[0032] As shown in Fig.6, section 10b of the teeth of the iron core 10 of the stator (stator core) may have a wedge shape. Due to the cross-sectional shape of the windings, the groove 12 has an essentially rectangular shape, and the shape of the section 10b of the tooth thereby is wedge-shaped. As a result, the magnetic flux density is reduced at the bottom of the section 10b of the tooth, which leads to the reduction of losses in the core.

[0033] Fig.7 is an example schematic diagram of the windings of the rotating electrical machine 1. Typically, the number C of the coils 14 is represented by (P/2)×m, where P denotes the number of the magnetic poles, and m denotes the number of phases of the power source excitation rotating electrical machine. In addition, the number C of the coils 14 is equal to the number of SLthe slots 12. In Fig.7 the number P of poles is eight (the number of pairs of poles is four, the number m of phases is five, the number of SLthe grooves 20 and the winding step is two. The connection method is a Y-connection (star) and is the type with four parallel/single serial connection, in which the number of neutral points (N1-N4) is four. Coil in five phases according to the government, connect with the U-, V-, W-, R - and S-phases of the power source excitation.

[0034] By increasing the coefficient K of the shortening of the step winding (winding VP step of rotating electric machine 1 may have a high torque. When SLindicates the number of slots, P denotes the number of poles and L denotes the winding step, the VP of the winding step is represented by the following equation (1). Therefore, the number of SLthe grooves preferably two to three times greater than the number P of magnetic poles. In the example of Fig.7, the number of SLgrooves 2.5 times greater than the number P of magnetic poles.

··· (1)

[0035] in Addition, by increasing the distribution coefficient (ratio of the distributed winding) can be increased torque. Of the main combinations of the number of grooves and the number of poles, a combination that can increase not only the VP of the winding step, but also the distribution coefficient, when the winding step is two, include a combination in which the number of phases is five, and the ratio of the number of SLslots to the number P of magnetic poles is 5:2, and a combination in which the number of phases is three, and the ratio of the number of SLslots to the number P of magnetic poles is 3:1.

[0036] Fig.8A-8D, the image is jut a method of manufacturing a stator 2. As is shown in Fig.8A, as the first stage are formed of the set of first windings 15 and many of the second winding 16 in the form of a conventional winding, as shown in Fig.5A. As is shown in Fig.8B, in the second step, respectively, are combined, the first coil 15 and the second winding 16 and thereby made many coils 14.

[0037] In the second stage, the first coil 15 and the second coil 16 are combined in such a way that they intersect twice in the respective end sections of the coil. First coenobite curved section of the first winding 15 is in the second coenobite curved section of the second winding 16. Second coenobite curved section of the first winding 15 is included in the first coenobite curved section of the second winding 16.

[0038] As shown in Fig.8C and Fig.8D, in the third stage, each set of coils 14 is inserted in the two slots, thereby builds on the iron core 10 of the stator. In the fourth phase coil 14 is pushed into the grooves so that the first winding 15 (or the second winding 16) of the coil 14 overlaps the second winding 16' (or the first winding 15') adjacent coils 14' in section 10b of the teeth in the radial direction of the stator 2.

[0039] As shown in Fig.9A and Fig.9B, in the third stage many coils 14 can be simultaneously inserted into the slots 12, thereby builds on the glands of the second core 10 of the stator. As a result, adequately meets the stator 2. It should be noted that the two slots, which are inserted in the coil 14 are not parallel to each other, and therefore, after one straight section of each of the coils 14 is inserted into one groove, the other straight section of each of the coils 14 to be inserted into the other groove when rotating each of the reels 14. To provide the space required for this round, the section 22 is provided with a notch at the bottom of the section 10b of the tooth. As a result, simplifies the Assembly of the iron core 10 of the stator and the body 11 of the winding.

[0040] In the above embodiment describes the case when the design of the winding is applied to the stator, but for a rotating electric machine in which the winding is provided for the iron core of the rotor winding design, described above, may be applied to the rotor.

[0041] According to a variant implementation of the design of the winding rotating electric machine 1 includes an iron core 10 (also referred to as core)having the grooves 12 and coil 14 having a first winding 15 and the second coil 16, which are combined by crossing the first coil 15 and the second winding 16 with each other. Each of the straight sections of the coil 14 is inserted into either of the two grooves 12 having a given interval,so that the coil 14 is assembled on the iron core 10. Therefore, can decrease the size of the end coil of the rotating electric machine and, optionally, its stator (or rotor).

[0042] the End sections 15a, 15b, 16a and 16b of the first coil winding 15 and the second coil 16, respectively, include first coenobite curved sections 15aA, 15bA, 16aA and 16bA, curving in the direction of the axis of rotation of the rotating electrical machine 1, and the second coenobite curved sections 15aB, 15bB and 16aB and 16bB, curving in the radial direction of the rotating electric machine. First coenobite curved sections 15aA and 15bA first winding 15 and are, therefore, intersect with the second coenobite curved sections 16aB and 16bB of the second winding 16. Second coenobite curved sections 15aB and 15bB first winding 15 are thereby intersect with the first coenobite curved sections 16aA and 16bA of the second winding 16. As a result, can more reliably be reduced mechanical dimensions of the coil of the rotating electric machine.

[0043] the First winding of a particular coil 14 (the first coil) on the end section of the coil overlaps the second winding 16' other coil 14' (second coil) with the shifted position between them. In addition, the second winding 16 of a particular coil 14 on the end section of the coil overlaps the first coil 15' the other coil 14' with the shifted position between them.As a result, increasing the fill factor of the windings (wires) inside the groove, and increases the output torque of the rotating electrical machine.

[0044] When the winding step, with which the coil 14 is wound on the groove 12 of the iron core 10 is two, in order to decrease mechanical dimensions of the coil of the rotating electric machine. The number of intersections between the first coil 15 and the second winding 16 on the end parts of the coils is two. As a result, the first coil 15 and the second coil 16 are only over or under winding collected in the adjacent groove, and wound without useless space.

[0045] the Number of the slots of the iron core 10 in two or three times the number of magnetic poles of a rotating electric machine, and thus, in effect this increases the VP of the step winding, and a rotating electric machine has a high torque. Preferably, if the number of phases of the rotary electric machine 1 is five, and the ratio of the number of the slots of the iron core 10 to the number of magnetic poles of the rotating electric machine is 5:2. Alternatively, preferably, if the number of phases of the rotary electric machine is three, and the ratio of the number of the slots of the iron core 10 to the number of magnetic poles of the rotating electric is th machine is 3:1. As a result of increasing the distribution coefficient and the rotating electrical machine 1 has a higher torque.

[0046] the First coil 15 and the second coil 16 wound in normal form, and the fill factor of the conductor within the groove thereby can be increased to a level identical to the level of concentrated winding. The cross-sectional shape of the electric wire 30 constituting the first coil 15 and the second coil 16, is essentially rectangular, and thus can be further increased fill factor of the conductor within the groove. The first coil 15 and the second coil 16 wound in the form of α-winding, and thus can be further increased fill factor of the conductor within the groove.

[0047] When the first coil 15 and the second winding 16 are connected inside of the groove, the connecting section 35 is located on the straights windings, which does not become a hindrance to education coenobite curved sections. The number of turns of the first coil 15 and the second coil 16 is not an integer, and when the wire 18 with two terminals of each of the windings are on the end parts of the coil on both sides, can be provided with the space used to change the phase windings, etc., When the first coil 15 and the second coil 16 sequentially connect the I between the end section of the coil on one side, can be reduced mechanical size of the coil of the rotating electric machine.

[0048] the Section 22 is provided with a notch at the bottom of the section 10b of the teeth of the iron core 10, and thereby simplifies the Assembly of the stator 2. When the section 10b of the teeth of the iron core 10 has a tapered lower core loss of the iron core 10 of the stator.

[0049] a Method of manufacturing a rotating electric machine 1 includes a first step of forming the first winding 15 and the second winding 16, a second step of combining the first winding 15 and the second winding 16 through the intersection of the first winding 15 and the second winding 16 with each other to produce the coil 14, and a third stage in the insertion of the coils 14 in the grooves 12 of the iron core 10, to assemble the coil 14 on the iron core 10. As a result, can be made of rotating electric machine 1 having end parts of the coil and the stator 2 (or rotor) of a reduced size.

[0050] Made many coils 14, and all coils 14 are respectively inserted into the corresponding slots 12 of the iron core 10 simultaneously, thereby simultaneously performing the coil Assembly 14 on the iron core 10. As a result, properly assembled stator 2.

[0051] the following is a description of the comparison between the prototype rotating when the second machine according to the traditional technology, having a design in a distributed winding form, and the prototype of the rotating electrical machine 1 according to a variant implementation. As in the prototype, the rotating electrical machine 1 and the prototype of the rotating electrical machine traditional technology diameters and axial lengths of the iron cores of the stator are identical, the rotors are identical, and all materials of electromagnetic steel plates, the electrical wires (copper wires), magnets, etc. are identical. In addition, in both prototypes maximum instantaneous torque, maximum instantaneous conclusions, maximum speed and maximum current density of windings are identical.

[0052] the ratio of the size of the ends of the coil relative to the iron core is small (25%) for the prototype of the rotating electrical machine 1, and the ratio of the size is large (47%) for the prototype of the rotating electrical machine to the conventional technology. It should be understood that the reduced end of the coil size of the rotating electric machine 1 according to a variant of implementation compared with the end coil of the rotating electric machine to the conventional technology. It should be noted that the ratio of the mechanical dimensions of the coil is obtained by the equation: (LE/LC)×100%, based on the length of LE Thor is and the coils in the axial direction of the rotating electric machine and the length LC of the iron core in the axial direction. In addition, by reducing the face amount of the coil size of the prototype under option exercise becomes equal to 85% (=125/147×100%) relative to the size of the prototype of the traditional technology.

[0053] the winding fill Factor, defined as described above, is a large (55%) for the prototype of the rotating electrical machine 1, and the fill factor is small (45%) for the prototype of the rotating electrical machine to the conventional technology. It should be understood that in the rotating electric machine 1 according to a variant implementation in one groove passes more wires than the number of wires rotating electrical machines traditional technology. In addition, the rotational speed of 10000 rpm, the output (output torque) of a prototype rotating electric machine 1 is increased by 30% compared with the output (output torque) of a prototype rotating electrical machines traditional technology.

[0054] This invention is not limited to the above embodiment, and various modifications and changes are possible within the framework of its technical ideas, and modifications and changes are clearly included in the scope of this invention.

[0055] All of the disclosure of patent applications (Japan) No. 2010-211193, filed September 21, 2010 contained in this document is ante by reference.

1. The design of the winding for a rotating electric machine, comprising:
the core includes grooves; and
the coil includes a first winding and a second winding, combined by crossing a first winding and a second winding each other, including:
each straight section of the coil is inserted in either of the two grooves, performed at set intervals, so that the coil is assembled on the core,
moreover, in the coil end parts of the first coil winding and the second winding contain:
first coenobite curved section that curves in the direction of the axis of rotation of the rotating electrical machine; and
second coenobite curved section that curves in the radial direction of the rotating electric machine; and
- when viewing from the direction of the axis of rotation of the first coenobite curved section of the first winding overlaps with the second coenobite curved section of the second winding and the second coenobite curved section of the first winding overlaps with the first coenobite curved section of the second winding.

2. The design of the winding under item 1, additionally containing other coil, in which:
the first coil winding overlaps the end section of the second coil winding of the other coil; and
the second coil winding overlaps the end section of the first coil is th winding of the other coil.

3. Rotating electrical machine containing the design of the winding under item 1.

4. Rotating electric machine according to p. 3, in which the winding step for winding the coils in the slots of the core is two.

5. Rotating electric machine according to p. 3, in which the number of intersections of the first winding and the second winding on the end parts of the coils is two.

6. Rotating electric machine according to p. 3, in which the number of grooves of the core at two to three times the number of magnetic poles of the rotating electric machine.

7. Rotating electric machine according to p. 3, in which the number of phases of the rotary electric machine is five, and the ratio of the number of the slots of the core to the number of magnetic poles of the rotating electric machine is 5:2, or the number of phases of the rotary electric machine is three, and the ratio of the number of the slots of the core to the number of magnetic poles of the rotating electric machine is 3:1.

8. Rotating electric machine according to p. 3, in which the first winding and the second winding is wound in the form of a conventional winding.

9. Rotating electric machine according to p. 3, in which the first winding and the second winding is made of electric wires having essentially rectangular cross-sectional shape.

10. Rotating electric machine according to p. 3, in which the first winding and the second on the coil is wound in the form of α-winding.

11. Rotating electric machine according to p. 3, in which the first winding and the second winding are connected in the slots.

12. Rotating electric machine according to p. 3, in which the number of turns of the first winding and the number of turns of the second winding are non-integer numbers and wire with two terminals of each of the first winding and the second winding are located on the end parts of the coil on both sides.

13. Rotating electric machine according to p. 3, in which the first winding and the second winding is connected in series between an end section of the coil on one side.

14. Rotating electric machine according to p. 3, additionally containing section with a recess provided in the bottom section of the tooth of the core.

15. Rotating electric machine according to p. 3, in which the area of the tooth core is wedge-shaped.

16. A method of manufacturing a rotating electric machine, comprising:
the first stage, which form a first winding and a second winding, each of which contains:
first coenobite curved section that curves in one direction; and
second coenobite curved section that curves in a direction perpendicular to the one direction;
the second stage, which combine the first winding and the second winding through the intersection of the first winding and the second winding each other is ω, to make the coil so that the first coenobite curved section of the first winding part and intersects with the second coenobite curved section of the second winding and the second coenobite curved section of the first winding part and overlaps with the first coenobite curved section of the second winding; and
the third phase, in which insert the coil into the slots of the core to form a coil on the core so that the first coenobite curved section and the second coenobite curved area is included in a face area of the coil,
- after the coil is assembled on the core, one direction corresponds to the direction of the axis of rotation rotating electrical machine and the direction perpendicular to the one direction corresponds to the radial direction of the rotating electric machine.

17. The method of manufacturing according to p. 16, in which the third step includes the steps are:
- made many coils; and
- insert the whole set of coils respectively and simultaneously into the corresponding slots of the core, in order to collect a lot of coils simultaneously on the core.

 

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