CN101795026A - Rotating electrical machine - Google Patents
Rotating electrical machine Download PDFInfo
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- CN101795026A CN101795026A CN200910163415A CN200910163415A CN101795026A CN 101795026 A CN101795026 A CN 101795026A CN 200910163415 A CN200910163415 A CN 200910163415A CN 200910163415 A CN200910163415 A CN 200910163415A CN 101795026 A CN101795026 A CN 101795026A
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Abstract
The invention provides a rotating electric machine which is improved of the electrical characteristics. A stator in the electric rotating machine is disposed in a rotor with a gap, and has a coil wound with two stator magnetic poles 91, 92 formed by an in-phase coil turn and a stator core within 360[deg.], in an electric angle defined by the magnetic pole of the rotor. Furthermore, the stator has the coil turn forming each of the stator magnetic poles 91, 92 with a smaller peripheral angular width than 180 degrees in the electrical angle. The coil turn forming the two static magnetic poles 91, 92 is made free from alternately overlapping, and at the same time the individual stator magnetic poles 91, 92 are wound so as to have mutually reverse polarity.
Description
Technical field
The present invention relates to a kind of electric rotating machine.
Background technology
Known construction as the stator coil of electric rotating machine has the modes such as twining, concentrate winding that distributes.
Wherein known a kind of winding construction of forming by the 1st three-phase connecting coil and the 2nd three-phase connecting coil, the 1st three-phase connecting coil is with respect to be connected 3 stator coils on the overlapping tooth that is wrapped in stator core of short pitch of the pole pitch three of rotor; The 2nd three-phase connecting coil is offset 3 stator coils of the overlapping winding of mode short pitch on tooth that (staggering) electric angle 60 is spent respectively with each stator coil of relative the 1st three-phase connecting coil, and connects (with reference to patent documentation 1) with the connected mode identical with the 1st three-phase connecting coil.
[patent documentation 1] Japanese kokai publication hei 6-165422 communique
In view of energy problem in recent years, electric rotating machine is also pursued high efficiency.But, because above-mentioned technology is to concentrate to twine on principle, so it is the zones of 120 degree that the stator coil of 1 phase part only utilizes the electric angle in the magnetic flux of handing over the rotor chain, thereby be difficult to obtain higher efficient with respect to the distribution winding that in electric angle 360 degree zones, utilizes.
On the other hand, distribute to twine and to have that full pitch is twined and short pitch twines, but its structure winding around in electric angle 180 degree basically oppositely twines remaining 180 degree, thus the coil of all phases of winding on the tooth of stator.Therefore, the chain that the caused magnetic flux of the electric current that coil midstream is crossed and self coil chain are handed over hands over the magnetic flux quantitative change many, and the inductance of coil (inductance) becomes bigger value.Therefore, in generator, suppressed the generation current in high speed rotating zone, in motor, made the control response variation of coil current.
Summary of the invention
The objective of the invention is to improve the electrical characteristics of electric rotating machine.
The present invention relates to be configured on the rotor and the stator of the mode winding around of two magnetic pole of the stator that electric angle 360 degree that constitute with the magnetic pole at rotor are formed by the coil turn of homophase with interior configuration across the space.The coil turn that is preferably formed each magnetic pole of the stator is the coil turn of all orientation angles less than electric angle 180 degree.Also preferred in addition, the coil turn that constitutes two magnetic pole of the stator is set to the phase non-overlapping copies.Also preferably constitute the mode winding around circle of antipolarity (opposite polarity) mutually with above-mentioned two magnetic pole of the stator.
Can improve the electrical characteristics of electric rotating machine according to the present invention.
Description of drawings
Fig. 1 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Fig. 2 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Fig. 3 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Fig. 4 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Fig. 5 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Fig. 6 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Fig. 7 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Fig. 8 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Fig. 9 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Figure 10 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 11 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 12 is the variation of expression Figure 11.
Figure 13 is the variation of expression Figure 11.
Figure 14 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 15 is the U phase winding figure of expression Figure 14.
Figure 16 is the vectogram of expression Figure 15.
Figure 17 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 18 is the U phase winding figure of expression Figure 17.
Figure 19 is the vectogram of expression Figure 18.
Figure 20 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 21 is the U phase winding figure of expression Figure 20.
Figure 22 is the vectogram of expression Figure 21.
Figure 23 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 24 is the vectogram of expression Figure 23.
Figure 25 is that expression constitutes the cutaway view of the air-cooled car of one embodiment of the invention with alternating current generator 100.
Figure 26 is the rectified three-phase circuit that expression is made of winding shown in Figure 25.
Figure 27 is the schematic diagram of the embodiment of presentation graphs 2.
Figure 28 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 29 is the skeleton diagram that expression constitutes the electric rotating machine of one embodiment of the invention.
Figure 30 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Figure 31 is the example of the coil winding methods of the expression electric rotating machine that constitutes one embodiment of the invention.
Among the figure: 1-rotor, 2-stator, 21-tooth (テ イ one ス), 31,311,312, the 313-U phase coil, 32,321,322, the 323-V phase coil, 33,331,332, the 333-W phase coil, 31A-three-phase system A coil, 31B-three-phase system B coil, 91, the 92-magnetic pole of the stator.
Embodiment
Execution mode shown below relate to have motor, generator with and the electric rotating machine of the motor generator (electric power generation machine) of both sides' function etc., be widely used in power motor, industry, household electrical appliances, the automobile etc.
Electric rotating machine such as generator, motor has: various forms of motors, generators such as inductor motor, permanent magnet synchronous motor, DC commutator machine.When these electric rotating machines are for example used as generator, stator, rotor are made of winding and iron core, flow through direct current in the epitrochanterian winding or in rotor, possess permanent magnet by being wrapped in, come that rotor is added magnetic and make this rotor rotation, thereby by obtaining magnetomotive force rotating on the stator in the coil that comes on stator, to twine in magnetic field, to generate electricity.
The stator coil of electric rotating machine has the winding of distribution and concentrated the winding as the mode of twining on the tooth that constitutes magnetic pole of the stator.
Distribute to twine and to have that full pitch is twined and short pitch twines, but its structure electric angle 180 degree winding arounds basically oppositely twine remaining 180 degree, and be formed in the coil of all phases of winding on the tooth of stator.Under the situation of distribute twining, hand over the coil of self, the i.e. adjacent in-phase coil circle of the certain chain friendship of magnetic flux responded to of a coil turn (turn) because flow through whole chains of magnetic flux that the electric current of coil responds to, so the inductance of coil is bigger.Therefore, generation current diminishes in generator, makes the control response variation of coil current in motor.
On the other hand, concentrated winding is that coil separates fully mutually, also is wrapped on the tooth independently according to each.The magnetic flux that each coil is accepted from rotor is spent the zones in electric angle 360, is roughly 1 of number of phases branch.For example the three-phase alternating current system is roughly 1/3.Therefore, hand over magnetic flux in order to improve chain, need the number of turns of increase coil, thus, cause coil inductance to increase, even also same with the winding that distributes when concentrated the winding like this, generation current diminishes in generator, makes the control response variation of coil current in motor.
The armature reaction of the electric current that flows through in addition, existing based on stator coil in concentrate twining and the electromagnetic force higher harmonic components that produces be many, the bigger such problem of noise in rotating.In order to offset 6 time higher harmonic components, can adopt two three-phase systems, with this phase difference as the one of the main reasons of noise
Be made as roughly 30 degree, thereby offset the time higher harmonic components 6 times.Because the phase difference of above-mentioned prior art
Be 60 degree, so be difficult to reduce 6 time higher harmonic components as the one of the main reasons of noise.
In addition, above-mentioned prior art is to concentrate winding on principle, so the stator coil of 1 phase part only can utilize the chain that is provided by rotor to hand over electric angle 120 degree in the magnetic flux regional in the occasion of generator.Be wrapped in situation about utilizing in the electric angle 360 degree zones with respect to distribution, three-phase system concentrates winding only to utilize a part.
According to following execution mode, swell (hypertrophy) of coil turn that can be by suppressing to be configured in stator end suppresses copper loss lower, thereby can improve the running efficiency of electric rotating machine.
In addition, according to following execution mode, can high order harmonic component electromagnetic force component is smaller than concentrating winding to be suppressed to, so can obtain the effect of low noiseization.
In addition according to following execution mode, obtaining the system of identical induced voltage, promptly in the system identical, twining and concentrate to twine and compare and to suppress self inductance of coil lower with distributing with the phase mutual inductance of rotor-side.Its reason is that different with the distribution winding of carrying out the coil winding in whole zone, the coil of 1 phase part only utilizes the part in electric angle 360 degree in the following embodiments, so an only part and the friendship of coil self chain of the chain friendship magnetic flux of coil self generation.In addition and since in concentrate twining the opposed area of fixed coil and rotor magnetic pole be of the present invention half, so need the increase coil turn in order to improve induced voltage, coil inductance is with square increase of coil turn, so coil inductance must increase.In the present embodiment, because can suppress self inductance of coil lower,, in addition, under situation about using, also can improve power generation characteristics as generator so under situation about using, can improve the control characteristic of coil current as motor.
In addition according to following execution mode, the motorcar alternator that the low rotary area below 2000rpm uses in the wide region of the high rotary area more than the 15000rpm, can obtain very good electrical characteristics.Motorcar alternator produces electric power according to the rotating energy of the internal combustion engine that uses when running car.Because the non-constant width of employed rotary area,, thereby there is the problem that suppresses output current so the impedance based on the inductance of stator coil increases in the high speed rotating zone.It reduces also can cause the efficient reduction.Can suppress the increase of inductance in the following embodiments, improve the output characteristic of electric current in the high speed rotating zone.
In the above description, the improvement of electric generation is illustrated, but can also solves in the following embodiments and above-mentioned different problem, obtain and above-mentioned different effect.According to following execution mode, few and be applicable under the situation of motorcar alternator and can improve productivity in the number of turns of stator winding.That is, owing to motorcar alternator is installed on the vehicle, so the strong request miniaturization.In the following embodiments because can reduce the number of turns of stator, so even, also can make productivity superior requiring to make under the situation of stator miniaturization according to miniaturization.In addition, can reduce the number of turns of stator than existing, thus the demand of seeking miniaturization easily.
Because not increasing the connection of stator winding counts,, obtain higher reliability in the following embodiments so can optimize productivity.Especially under the environment that transmits body vibrations and gasoline engine vibration easily, use motorcar alternator.In addition, can also under the environment of the variations in temperature fierceness that changes to high temperature from negative temperature, use this motorcar alternator.The tie point of therefore wishing welding etc. is few.In addition, also because the number of turn of coil is few, coil to expose area big, so can avoid easily, also be good aspect thermal endurance therefore because of coil is embedded in heat that other coils produce etc.From this point of view, following execution mode is fit to motorcar alternator very much.
Below, adopt accompanying drawing that the execution mode that constitutes the embodiment of the invention is described.
Fig. 1 illustrates the skeleton diagram of the electric rotating machine that constitutes one embodiment of the invention.There is shown the part of electric rotating machine is launched with linearity.
Electric rotating machine is made of rotor 1 and stator 2, is equipped with a plurality of rotor magnetic poles 11 on rotor 1, is equipped with a plurality of teeth 21 that form magnetic pole of the stator on stator 2, is wound with U phase coil 31, V phase coil 32, W phase coil 33 on a plurality of teeth 21.Here, the V phase coil is defined as with respect to the alternating current that flows through the U phase coil coil that alternating current flow through of phase delay 120 degree (240 degree in advance).In addition, the W phase coil is defined as with respect to the alternating current that flows through the U phase coil coil that alternating current flow through of phase delay 240 degree (120 degree in advance).The direction of rotation of in Fig. 1, representing rotor 1 with the direction of arrow.
Solid line represents that coil is twined (seeing that from internal side diameter tooth twines in a clockwise direction) by forward, dotted line represent with above-mentioned opposite reverse winding (seeing that from internal side diameter tooth is with winding counterclockwise).In Fig. 1, present the coil that forward is twined and be wrapped in locational situation, but also can be wrapped on the near position of rotor away from rotor.As shown in the figure, the stator coil of present embodiment constitutes two concentrated winding arounds is configured on the position of mutual skew electric angle 180 degree doubly, and separately U phase coil, V phase coil, W phase coil are connected in series to each other.In other words, stator 2 is configured on the rotor 1 across the space, two magnetic pole of the stator 91,92 that the winding around configuration is formed by the in-phase coil circle in the zone of electric angle amplitude (width) 360 degree, each coil turn that forms magnetic pole of the stator 91,92 is set to all deflection amplitudes less than electric angle 180 degree and constitute the coil turn phase non-overlapping copies of two magnetic pole of the stator 91,92, and the winding around circle makes each magnetic pole of the stator 91,92 form reciprocal polarity mutually.Here, the coil turn of two magnetic pole of the stator 91,92 of formation is set to be offset mutually electric angle 180 degree.And, be configured to constitute the magnetic pole of the stator of U, V, W three-phase, and be offset electric angle 60 degree respectively one by one.In addition, the V phase coil carries out the winding opposite with the U phase coil.Thus, become+60 degree-180 degree=-120 degree, the V phase coil is compared phase delay 120 degree with the U phase coil.In addition, the W phase coil carries out and the winding in the same way of U phase coil, so compare 2 * 60 degree=120 degree phase places in advance with the U phase coil.In addition, in this embodiment, the electric angle amplitude of a coil turn formation is 120 degree, and is being wrapped on the 240 degree tooth regional, i.e. 2/3 whole quantity with two coil turn on the homophase.Below, such coil winding methods is called " disperseing to twine ".
Therefore, the stator coil in the present embodiment with compare with the interior concentrated winding arrangement that a concentrated winding around is set at electric angle 360 degree, the circuit area of each coil turn of handing over the magnetic flux chain of rotor is its 2 times, the coil utilization ratio is for concentrating 2 times that twine.In the present embodiment, hand over magnetic flux in order to obtain with concentrate twining identical chain, the coil turn that twines on the tooth is compared half and both can with concentrating to twine under the situation that is conceived to certain 1 tooth.Each coil of U phase, V phase, W phase is dispersed into 2 times with concentrate twining to compare, and in addition, only is wrapped in winding around on the tooth of 2/3 whole quantity, rather than as the winding that distributes on all teeth winding around.Therefore, compare, can suppress coil inductance lower with concentrating winding and distribution winding.
Present embodiment constitutes in addition, compare with concentrated the winding, with the coil decentralized configuration is 2 times, U phase coil, V phase coil and the superimposed winding of W phase coil are about half, therefore armature reaction is compared and can be distributed on Zhou Fangxiang smootherly with concentrating winding, thereby becomes the structure of the electromagnetic force higher harmonic components that has reduced high order.Therefore, compare with concentrating winding, can be as more quiet electric rotating machine performance function.
In addition, in the example of Fig. 1, constitute every 1 stator tooth of electric angle 60 degree configurations, and with electric angle amplitude 120 degree winding around circles, but dispose 1 stator tooth and also can play same effect with electric angle amplitude 90 degree, 120 degree or 150 structures of spending the winding around circles every electric angle 30 degree.In addition, the embodiment of the single three-phase system of following Fig. 2～shown in Figure 9 also is every 1 stator tooth of electric angle 60 degree configurations, with the structure of electric angle amplitude 120 degree winding around circles, but comes the structure of winding around circle also can play same effect every electric angle 30 1 stator tooth of degree configuration and with electric angle amplitude 90 degree, 120 degree or 150 degree.
Fig. 2 represents to constitute the skeleton diagram of the electric rotating machine of one embodiment of the invention.All same as the previously described embodiments except the item of the following stated.
Present embodiment is with respect to embodiment 1, the winding method difference of stator coil.For tooth 21, tilt in the position of the close rotor of groove with away from 2 layers of the position of rotor respectively and twine whole stator coils, all on average twine at whole coils the radial direction position of coil.That is, on the position with one in two groove insertion sections of each coil turn close rotor that is configured in groove, another is configured on the position away from rotor of groove, so that the coil inductance equalization of each phase.In embodiment 1, each phase coil on average disposes by the coil that is connected in series the radial direction of tooth 21, but in the present embodiment, the whole coils before being connected in series also are average.Its schematic diagram shown in Figure 27.Coil position in each 1/3 zone in whole cycle is loop configuration successively, from the whole cycle, on average disposes with respect to each coil.
About the coil configuration of the radial direction of tooth 21, constituting the preferred average situation of each phase coil in the uniform three-phase alternating current system.
Fig. 3 illustrates the example of the coil winding methods of the electric rotating machine that constitutes one embodiment of the invention.
These figure illustrate U phase, V phase, the W phase coil of the coil winding methods when the radial direction inboard of the stator that is configured in the electric rotating machine outside is seen respectively.These figure are in order to be easy to represent the winding method of coil, and have ignored the thickness of coil, in coil interbody spacer space, so that understand the roughly situation of winding method.The transverse direction of accompanying drawing is equivalent to the Zhou Fangxiang of stator.Here be provided with 6 grooves (6 teeth) at electric angle 360 degree.Therefore, adjacent groove (tooth) has the phase difference that electric angle 60 is spent.
In the example of Fig. 3, in order to constitute 1 magnetic pole of the stator 91, and be after the mode of electric angle 120 degree (being two teeth 21 here) has been twined the coil of 2 circles with all deflection amplitudes, insert this coil to groove at a distance of the groove of electric angle 180 degree (tooth 21 being made as 3 here) with last insertion, from this groove, oppositely twine the coil of 2 circle homophases with the coil turn that constitutes magnetic pole of the stator 91, to constitute other magnetic pole of the stator 92.Here so-called 2 circles twine and are meant that two grooves to twining coil insert two coils respectively.These coils are connected in series.Thus, can make the total length of coil the shortest, thereby can reduce copper loss widely.
In addition, the three-phase coil that inserts in the groove that is formed at 21 in a plurality of teeth twines in total number identical mode in each groove.Like this,, then can dispose coil equably,,, in the ventilation cooling of coil, have and to cool off such effect equably so twine easily because coil is not concentrated if the coil number is identical in each groove.Even self-evident is not that identical number also can obtain the structure that the dispersion in the present embodiment is twined.
In this example, in a groove, insert 4 coils altogether.In addition, when total number of the coil that inserts to a groove is even number, can use this embodiment.
Fig. 4 represents to constitute the example of coil winding methods of the electric rotating machine of one embodiment of the invention.Except item shown below, all same as the previously described embodiments.
In this example, after the mode that in order to constitute a magnetic pole of the stator 91 with all deflection amplitudes is electric angle 120 degree (being two teeth 21) is here twined the coil of 2.5 circles, to spending (here at a distance of electric angle 180 with the groove of last insertion, if tooth 21 is 3) groove insert this coil, from this groove, oppositely twine the coil of 2.5 circle homophases with the coil turn that constitutes magnetic pole of the stator 91, constitute other magnetic pole of the stator 92.Here so-called 2.5 circles that twine are illustrated among of two grooves inserting coil and insert 2 coils, insert 3 coils in another.Because can with each mutually all the end winding of coils to be configured to both sides even, so can prevent the swelling of end winding.Here show the example of 2.5 circles, but so long as the number of turn of half-integer (half of integer) just can be suitable for present embodiment.
In in addition should example, insert 5 coils altogether to a groove.When the total number of inserting to a groove of coil is odd number, can use this embodiment.
Fig. 5 represents to constitute the example of winding method of the dynamoelectric coil of one embodiment of the invention.Except item shown below, all same as the previously described embodiments.The arrow that coil marked among the figure is represented to exist during each mutually two coil system electric currents the moment towards.
This example is that the forward winding around separates the example that constitutes with reverse winding around.In order to constitute the magnetic pole of the stator 91 that forward twines, with all deflection amplitudes is that the mode winding around that electric angle 120 is spent (being two teeth 21) here constitutes magnetic pole of the stator 91, in the groove of electric angle 240 degree (establishing tooth 21 here is 4), insert this coil to groove with last this coil of insertion, from this groove, twine 2 circle coils in the same way with the coil turn that constitutes magnetic pole of the stator 91.Equally, for the magnetic pole of the stator 92 that constitutes reverse winding, in electric angle 240 degree that the coil that above-mentioned forward twines is crossed over, mode with magnetic pole of the stator 91 phase deviations 180 degree that twine with forward, make this week deflection amplitude leap electric angle 120 degree (being two teeth) here, and the said stator magnetic pole that twines with above-mentioned forward is winding around oppositely, constitute the magnetic pole of the stator 92 of reverse winding, and from the groove of last insertion groove at a distance of electric angle 240 degree (establishing tooth 21 here is 4), with the coil turn that constitutes magnetic pole of the stator 92 winding around in the same way, constitute reverse winding around.
Preferred forward winding around is connected in series with reverse winding around.Thus because can with each mutually all the end winding of coils to be configured to both sides even, so can prevent the swelling of end winding, and be easy to winding around, thereby optimize the batch process property.
In in addition should example, in a groove, insert 4 coils altogether.When total number of going into coil a groove interpolation is even number, can use this embodiment.
Fig. 6 represents to constitute the example of coil winding methods of the electric rotating machine of one embodiment of the invention.Except item shown below, all same as the previously described embodiments.Among the figure to the arrow of coil mark represent to have in each phase two coil system electric currents the moment towards.
This example will be wound in the example of waveform winding of the phase difference of electric angle 180 degree as the U phase coil 313 of tertiary coil, V phase coil 323, W phase coil 333 in addition in any one of two grooves that insert the coil turn that forward twines and oppositely twine respectively except the embodiment of Fig. 5.That is to say, become and disperse the compound of winding arrangement and distribution winding arrangement to have the advantage that distributes and twine, that is, improved the characteristic that reduces high order harmonic component slightly.
Should in a groove, insert 5 coils altogether in the example in addition.When total number of going into coil a groove interpolation is odd number, can use this embodiment.
Fig. 7 illustrates the example of the coil winding methods of the electric rotating machine that constitutes one embodiment of the invention.Except item shown below, all same as the previously described embodiments.Among the figure to the arrow that coil marked represent to have in each phase two coil system electric currents the moment towards.
Fig. 7 is the forward winding around separates formation with reverse winding around other examples.Is that the mode of electric angle 120 degree (being two teeth 21 here) is according to the wave winding winding around in order to constitute magnetic pole of the stator 91 that forward twines with all deflection amplitudes of coil, from with the groove of last this coil of insertion groove at a distance of electric angle 240 degree (establishing tooth 21 here is 4), twine two coils according to wave winding in the same way with the coil turn that constitutes magnetic pole of the stator 91.Equally, for the magnetic pole of the stator 92 that constitutes reverse winding, in electric angle 240 degree of in the coil that above-mentioned forward twines, having crossed over, mode with magnetic pole of the stator phase deviation 180 degree that twine with forward, make this deflection amplitude according to waveform winding winding around is electric angle 120 degree in week, spend the groove of (establishing tooth 21 here is 4) from the electric angle 240 of having crossed over the magnetic pole of the stator that constitutes the forward winding, identically with the coil turn that constitutes magnetic pole of the stator 92 twine two coils according to the waveform winding, constitute reverse winding around to ground.Two coils both can be connected in parallel and also can be connected in series, but preferred forward winding around is connected in series with reverse winding around.Thus because can with each mutually all the end winding of coils to be configured to both sides even, so can prevent the swelling of end winding.In addition because be not wound coil but constitute, so winding around is easily optimized and produced property in batches with the waveform winding.
In in addition should example, in a groove, insert 4 coils altogether.When total number of going into coil a groove interpolation is even number, can use this embodiment.
Fig. 8 illustrates the example of the coil winding methods of the electric rotating machine that constitutes one embodiment of the invention.Except item shown below, all same as the previously described embodiments.Among the figure to the arrow of coil mark represent to have in each phase two coil system electric currents the moment towards.
This example will be wound in the example of waveform winding of the phase difference of electric angle 180 degree as the U phase coil 313 of tertiary coil, V phase coil 323, W phase coil 333 in addition in any one of two grooves that insert the coil turn that forward twines and oppositely twine respectively except the embodiment of Fig. 7.That is to say, become and disperse the compound of winding arrangement and distribution winding arrangement to have the advantage that distributes and twine, that is, improved the characteristic that reduces high order harmonic component slightly.
In in addition should example, in a groove, insert 5 coils altogether.When total number of going into coil a groove interpolation is odd number, can use this embodiment.
Fig. 9 illustrates the example of the coil winding methods of the electric rotating machine that constitutes one embodiment of the invention.Except item shown below, all same as the previously described embodiments.Among the figure to the arrow of coil mark represent to have in each phase two coil system electric currents the moment towards.
This example is the example that the embodiment of Fig. 7 has been carried out distortion.Make the sense of current of coil of reverse winding reverse, and the combination of a side overlap joint line and the opposing party's coil turn is configured to be rotated around two teeth 21 in twining or oppositely twine by forward.Thus, can constitute as circular current around two teeth 21.
In in addition should example, in a groove, insert 4 coils altogether.When total number of going into coil a groove interpolation is even number, can use this embodiment.
Figure 10 illustrates the skeleton diagram of the electric rotating machine that constitutes one embodiment of the invention.Except the item of the following stated, all same as the previously described embodiments.
The structure of present embodiment is to have made up above-mentioned dispersion winding arrangement and dual three-phase structure.That is, be provided with two winding groups shown in Figure 1, and be offset the ground configuration phase mutually.Constitute as shown in figure 10, the number of tooth 21 is that the electric angle phase difference between 12, adjacent tooth 21 is 30 degree in each electric angle 360 degree.Part in the radial direction outside in tooth 21 disposes the three-phase alternating current anchor line (string) circle of the dispersion winding arrangement of a three-phase alternating current system (three-phase system A), and the part in the radial direction inboard also disposes the three-phase alternating current anchor line (string) circle of the dispersion winding arrangement of another three-phase alternating current system (three-phase system B).Three-phase system B is configured on the positions of electric angle skew 30 degree and is connected in parallel at three-phase system A.Three-phase system A, B for example twine each coil in the mode of 4 teeth of harness.
Figure 11 illustrates the skeleton diagram of the electric rotating machine that constitutes one embodiment of the invention.Except the item of the following stated, all same as the previously described embodiments.
The winding group of three-phase system A and the winding group of three-phase system B are equal as circuit element preferably.Thus, can effectively reduce the high order harmonic component electromagnetic force, in addition, the output current when being considered as generator is also even, and the fluctuation in the output current after will synthesizing is suppressed to less.Therefore, as shown in figure 11, the coil that twines along Zhou Fangxiang is offset and tilted configuration on radial direction.Promptly, the winding group of three-phase system A constitutes 3 magnetic pole of the stator mutually respectively with the winding group of three-phase system B, mutually the winding of the phase of skew electric angle 30 degree is wrapped on the groove that the winding of this phase adjoins each other to each other, and with the mutually disjoint mode of end winding respectively the close rotor of insertion groove the position and away from the position of rotor.Thereby two three-phase systems have average electric circuit characteristic mutually.
Figure 11 illustrates with each coil turn and twines 4 teeth, promptly is the example that electric angle 120 degree twine along Zhou Fangxiang, but also can twine 3 teeth as shown in figure 12, promptly is electric angle 90 degree along Zhou Fangxiang and twines.In addition as shown in figure 13, can also twine 5 teeth, promptly be electric angle 150 degree and twine along Zhou Fangxiang.
As shown in this embodiment, double three-phase system by constitute disperseing winding arrangement also is set at the electric angle phase difference of two three-phase systems about 30 degree or its, can reduce by 6 the time higher harmonic components relevant effectively, the noise of electric rotating machine is significantly reduced with electromagnetic force.
Figure 14 illustrates the skeleton diagram of the electric rotating machine that constitutes one embodiment of the invention.Except the item of the following stated, all same as the previously described embodiments.
Make the number of tooth become 2 times in order to obtain dual three-phase structure in Figure 11, present embodiment is that the number of teeth keeps existing situation, is that the tooth of each rotor 1 magnetic pole is the embodiment that 3 situation realizes dual three-phase structure.Figure 14 illustrates the one example.Here, make dispersion winding arrangement change a part as the basis.The forward winding around of representing with solid line of the U phase coil shown in the three-phase system A of Figure 14 twines 3 teeth, and oppositely winding around twines 2 teeth.On the other hand, the forward winding around of the U phase coil shown in the three-phase system B twines 2 teeth, and oppositely winding around twines 3 teeth.The forward winding around all has identical groove with reverse winding around, and its position is same place in three-phase system A and three-phase system B.Figure 15 illustrates the winding line chart of the U phase coil of this moment.The forward winding around 314 of three-phase system A is with oppositely forward winding around 317 and the reverse winding around 316 of winding around 315, three-phase system B are wavy winding as shown in figure 15.The forward winding around that Figure 16 illustrates this moment is identical with the number of turns of reverse winding around.Figure 16 has considered that phase place utilizes vectogram that the magnetic flux that picked up of U phase coil of this moment is shown.Numerical value 6 and 2 among the figure are expressions with the forward winding around and oppositely the number of turns of winding around be made as the amount of relative size of 2 o'clock magnetic flux vector, by vector calculus, the electric angle phase difference of the magnetic flux vector that the U phase coil of three-phase system A and three-phase system B is picked up is 27.8 degree.Than the skew slightly of 30 degree, the reduced rate of 6 time high order harmonic component electromagnetic exciting force components of this moment is 1.3%, obtain by following formula, promptly (1+cos (6 * 27.8deg))/2=0.013, thus can obtain the effect of abundant reduction and realize quietization.
Like this, in the three-phase coil system that is formed by U phase coil, V phase coil and W phase coil, the forward winding around is different with the number of teeth of oppositely winding around winding.In the present embodiment,, the number of teeth do not get final product, so have the effect that coil twines easily because not being increased to 2 times.
Here, be under the situations of 20 degree at the relative angle of dual three-phase system, (1+cos (6 * 20deg))/2=0.25; Under the situation that is 40 degree, (1+cos (6 * 40deg))/2=0.25, thus the reduced rate of 6 time high order harmonic component electromagnetic exciting force components all is 25%.Therefore, if the relative angle of dual three-phase system is set at the zone of 20～40 degree, then the reduced rate of 6 time high order harmonic component electromagnetic exciting force components can be suppressed to below 25%.
Figure 17～Figure 19 illustrates other modes based on same consideration.This is the example that appends ancillary coil in the example of Figure 15.As shown in figure 18, the whole wavy windings of coil (wave winding).In the case, the reduced rate of 6 time high order harmonic component electromagnetic exciting force components also can access identical value, obtains effect same as the previously described embodiments.
Figure 20～Figure 22 illustrates other modes based on same consideration, is the example that has changed the three-phase system B of Figure 17.As shown in figure 21, coil is all with wavy winding.The reduced rate of 6 time high order harmonic component electromagnetic exciting force components of this moment is obtained the value identical with previous embodiment by following formula, and promptly (1+cos (6 * 32.2deg))/2=0.013, thus the effect identical can be obtained with previous embodiment.
Figure 23 illustrates other modes based on same consideration.By with the coil of three-phase system A and three-phase system B shift position slightly, can make electric angle phase difference between three-phase system A and the three-phase system B near 30 degree.In the present embodiment, according to the vectogram of Figure 24, the electric angle phase difference between three-phase system A and the three-phase system B is 43.9-16.1=27.8 (deg).The reduced rate of 6 time high order harmonic component electromagnetic exciting force components of this moment is that (1+cos (6 * 27.8deg))/2=0.013 has the effect identical with previous embodiment.The coil configuration of Figure 23 is represented skeleton diagram, and is self-evident, even along radial direction moving coil and twining easily suitably, also can reduce time high order harmonic component electromagnetic exciting force component effectively 6 times.
Above-mentioned embodiment arbitrarily can both be applicable to electric rotating machine such as widely used motor, generator in power motor is used with, automobile with, household electrical appliances with, industry etc.Can expect to be widely used in the various fields, in big equipment, may be used on wind-driven generator, automobile driving motor, generating electric rotating machine, industry electric rotating machine, in medium size installations, may be used in industry with, automobile electric rotating machine with use in the subsidiary engine etc., in little equipment, may be used at household electrical appliances with, OA electric rotating machine with use in the machine etc.
For example be illustrated in the embodiment when utilizing in the generator.By constituting aforesaid double three-phase system, can obtain the littler generation current of fluctuation.
Figure 25 illustrates the cutaway view that the air-cooled car that constitutes one embodiment of the invention is used alternating current generator 100.Central part at rotor 1 axis disposes claw-type pole 113, disposes magnetic field winding 112 at the central part of this claw-type pole 113.Front end at axle is equipped with pulley 101, is provided with at its opposition side to be used for collector ring 109 that above-mentioned magnetic field winding is powered.In addition, the both ends of the surface of the claw-type pole 113 of rotor 1 are by constituting with the forefan 107F and the aft-fan 107R that rotate the cooling fan that is rotated synchronously.In addition, on the pawl magnetic pole utmost point 113, dispose permanent magnet 116, play the effect of the additive excitation that makes magnetic field winding magnetic flux increase.On the other hand, stator 2 is made of magnetic pole of the stator 91,92 and stator winding, and opposed via a little gap and rotor 1.Stator 2 is kept by front rack 114 and tail-bracket 115, and two carriages and rotor 1 utilize bearing 102F and 102R rotatably mounted.Previous described collector ring 109 constitutes to contact with brush 108 provides electric power.Stator winding is made of three phase windings as above-mentioned embodiment, and the lead-out wire of each winding is connected with rectification circuit 111.Rectification circuit 111 is made of rectifier cells such as diodes, constitutes full-wave rectifying circuit thus.For example in the occasion of diode, negative terminal is connected with terminal 106.In addition, the terminal of side of the positive electrode is electrically connected with the vehicle-mounted dlternator main body.Back cover 110 plays the effect of the protective cover of rectification circuit 111.
Then, the generating action is described.Engine (not shown) transmits with vehicle-mounted dlternator 100 general using and brings binding.Vehicle-mounted dlternator 100 utilizes conveyer belt to be connected by pulley 101 with starting pusher side, and in engine rotation, rotor 1 is rotated.By in the magnetic field winding 112 of claw-type pole 113 central parts that are set to rotor 1, flowing through electric current, make this claw-type pole 113 magnetization, and by being rotated in the induced electromotive force that produces three-phase in the stator winding.Carry out full-wave rectification in the formerly described rectification circuit 111 of its voltage, produce direct voltage.The positive side of this direct voltage is connected with terminal (terminal) 106, further is connected with battery (not shown).But the controlling magnetic field electric current makes the direct voltage after the rectification become the suitable voltage (detailed content omission) that battery is charged.
Figure 26 illustrates the rectified three-phase circuit that is made of winding shown in Figure 25.Figure 26 (a) is corresponding with the embodiment of Fig. 1～Fig. 9, and the later embodiment of Figure 26 (b) and Figure 10 is corresponding.Each phase winding connects through three-phase Y.The terminal of the inverse neutral point side of three-phase coil (neutral point opposition side) is connected with 6 diode D1+～D3-as shown in the figure.In addition, (cathode) is shared for the side of the positive electrode diode cathode, is connected with the side of the positive electrode of battery.The positive pole of negative side diode terminal (anode) is connected with the negative terminal of battery equally.
In Figure 26 (b), the U1 winding of electric independently three phase windings and the voltage of U2 winding equate, electric phase deviation 30 degree, so select current potential big, finally become the fluctuation of 30 degree amplitudes.
In addition, show the example of Y-connection here, but also can adopt triangle to connect.Under the situation that has adopted triangle to connect, compare with the situation of Y-connection, can obtain and make the coil-induced voltage improve 11.5% such effect.
In addition, in other words the foregoing description is following electric rotating machine, this electric rotating machine is made of stator and rotor, the stator coil that this stator is flow through by single three-phase alternating current system power, back core (core back) formation of twining the tooth of this stator coil and making the flux return that flows through tooth; This rotor has and the opposed magnetic pole of tooth, and in this electric rotating machine, the stator coil that is wrapped on each tooth only is U phase coil and V phase coil or V phase coil and W phase coil or W phase coil and U phase coil.
In addition, can also be following electric rotating machine, this electric rotating machine is made of stator and rotor, the stator coil that this stator is flow through by single three-phase alternating current system power, twines the tooth of this stator coil and the back core of the magnetic flux circulation of flowing through tooth is constituted; This rotor has and the opposed magnetic pole of tooth, in this electric rotating machine, concentrated winding around system at the radial direction outer fix of tooth configuration U phase coil, V phase coil and W phase coil, and, the concentrated winding around system of U phase coil, V phase coil and the W phase coil that twines at inboard configuration of radial direction and the concentrated winding around system reverse of stating earlier, and be in series according to each and connect these two concentrated winding around systems.
In addition, can also be following electric rotating machine, this electric rotating machine has two three-phase coil systems that formed by U phase coil, V phase coil and W phase coil, the electric angle phase difference of each coil system is set in the scopes of approximate 30 degree or 20 degree-40 degree.
Figure 28 represents to constitute the skeleton diagram of the electric rotating machine of one embodiment of the invention, and its mode of launching with straight line shows the part of electric rotating machine.The upside figure of Figure 28 is the figure that observes electric rotating machine from the rotating shaft direction, and downside figure is the figure that observes to the radial direction outside from the rotor-side of inboard.All same as the previously described embodiments except item shown below.
Electric rotating machine is made of rotor 1 and stator 2, is equipped with a plurality of rotor magnetic poles 11 on rotor 1, is equipped with a plurality of teeth 21 that form magnetic pole of the stator on stator 2.Here the example that has 12 teeth 21 in electric angle in 1 cycle is described.Twine 3 phase coils on these teeth 21, U phase coil 31 only is shown among the figure, V phase coil and W phase coil are wrapped on the position of phase delay 120 degree in the electric angle.The tooth 21 of stator is configured at interval with electric angle 30 degree, so V phase coil and W phase coil are wrapped on the position of 4 teeth 21 that have been offset stator with respect to U phase coil 31.Here, the V phase coil is defined as: the AC current phase that relative current is crossed the U phase coil postpones the coil that 120 alternating currents of spending (240 degree in advance) flow to.In addition, the W phase coil is defined as: the AC current phase that relative current is crossed the U phase coil postpones the coil that 240 alternating currents of spending (120 degree in advance) flow to.
Solid line represents that coil carries out forward and twines (observing tooth from internal side diameter is that clockwise direction twines), and dotted line represents to carry out the reverse winding opposite with it (observing tooth for counterclockwise twining from internal side diameter).Figure 28 illustrates the situation that coil that forward is twined twines on distance rotor position far away, but also can be wrapped on the near position of rotor.As shown in the figure, the stator coil structure of present embodiment is: 2 concentrated winding around bilayers are configured in electric angle are offset mutually on the position of 180 degree, and each U phase coil 31 is connected in series to each other.Stator 2 is configured on the rotor 1 via the space, in electric angle amplitude 360 degree zones, 6 magnetic poles that will form by the coil turn of homophase as two magnetic pole of the stator 91,92 of one group on winding around, 1 circle in each coil turn that forms magnetic pole of the stator 91,92 is electric angle 180 degree of all orientation angle amplitudes, and remaining coil turn is twined in the scope narrower and small than electric angle 180 degree of all orientation angle amplitudes.Be to be wrapped in 4 forms on the tooth 21 in the example of Figure 28.This example is for only to twine 1 circle on 4 teeth 21, but also can twine multiturn.It is not overlapped that this electric rotating machine is set to constitute the coil turn of these two magnetic pole of the stator 91,92, and come the winding around circle in modes that each magnetic pole of the stator 91,92 constitutes opposite polarities mutually.
Here the coil turn that is set to constitute two magnetic pole of the stator 91,92 is offset electric angle 180 degree mutually.And, constitute U, V, the magnetic pole of the stator of this 3 phase of W is configured to be offset separately electric angle 60 degree (omitting V in Figure 28, the W phase coil).In addition, V phase coil and U phase coil be the amount of 2 teeth 21 of ratio deviation mutually, and oppositely twines with the U phase coil.Be+60 degree-180 degree=-120 degree thus, the V phase coil is compared phase delay 120 degree with the U phase coil.In addition, W phase coil and U phase coil be the amount of 4 teeth 21 of ratio deviation mutually, twines with identical direction with the U phase coil, so compare 2 * 60 degree=120 degree phase places in advance with the U phase coil.
Stator coil in the present embodiment with compare with the interior concentrated winding arrangement that 1 concentrated winding around is set at electric angle 360 degree, the loop area of each coil turn of handing over the magnetic flux chain of rotor is that 2 times, coil utilance are for concentrating 2 times that twine.Under the situation that is conceived to certain 1 tooth, in the present embodiment, in order to obtain to hand over magnetic flux with concentrate twining identical chain, the coil turn that is wrapped on the tooth is compared half and both can with concentrating to twine.Each coil of U phase, V phase, W phase is compared with concentrated winding and is dispersed into 2 times, in addition, and be to twine the same winding around on all teeth like that not as distributing, though on the whole on the winding around, but the tooth to whole 2/3 quantity carries out multiple winding, the tooth of remaining 1/3 quantity is only twined the coil of 1 circle.Therefore, compare, can suppress coil inductance lower with concentrating winding and distribution winding.
Present embodiment constitutes in addition, compare with concentrated the winding, with the coil decentralized configuration is 2 times, the overlapping winding in half left and right sides in U phase coil, V phase coil and the W phase coil, therefore armature reaction is compared and can be distributed on Zhou Fangxiang smootherly with concentrating winding, thereby becomes the structure of the electromagnetic force higher harmonic components that has reduced high order.Therefore, compare with concentrating winding, can be as more quiet electric rotating machine performance function.
In addition, the example of Figure 28 be every 1 stator tooth of electric angle 30 degree configuration, on 4 stator tooths the mode of multiple winding around circle, but also can be the mode of on 2,3 or 5 stator tooths, carrying out multiple winding.
Then, other embodiment are described.Embodiment shown in Figure 28 is the example that stator is twined the coil of even number circle in electric angle 360 degree, and embodiment shown in Figure 29 is the example that twines the coil of odd number circle.Same as the previously described embodiments except the item of the following stated.
Present embodiment is with respect to the embodiment of Figure 28, the canoe difference of stator coil.The embodiment of Figure 28 is with forward to be twined and oppositely twine the mode that these two kinds of coils 31 twine and they are connected in series endways relative, in the present embodiment for directly link the canoe that has forward to twine and oppositely twine these two kinds of coils 31 in continual mode.Be directly to link to each other or oppositely winding around form to each other of forward winding around in the embodiment of Figure 28, so in the distance of electric angle 180 degree, producing invalid end winding, alternately connect forward winding around and reverse winding around in the present embodiment, therefore do not produce invalid end winding, compare with embodiment 1 and can effectively utilize coil.
About the coil configuration of the radial direction of tooth 21, preferred each phase coil is the average structure of electric loop in the uniform three-phase alternating current system constituting.
When Figure 30, Figure 31 are illustrated in the stator coil shown in the embodiment of embodiment, Figure 29 of Figure 28 and constitute 3 phase systems, make the position embodiment of the average coil canoe of coil electric loop in full week of whole phases.Because coil tiltedly twines in the radial direction updip of stator, thus take place hardly based on the difference of phase and the inequality of the radial direction position that causes, and coil inductance is roughly even.
Here 4 embodiment that illustrate are 3 single phase systems, but in order to reduce the caused noise of high order harmonic component electromagnetic force, it is effective constituting dual 3 phase systems with the phase difference about 30 degree.Angle θ is made as 20 degree＜θ＜30 degree.Constitute two 3 phase system U, V, W, U ', V ', W ', U ' phase coil makes electric angle θ phase delay with respect to the U phase coil.Equally, V ' phase coil makes electric angle θ phase delay with respect to the V phase coil, and W ' phase coil makes electric angle θ phase delay with respect to the W phase coil.When specifically narrating among the embodiment at Figure 28～shown in Figure 31, the stator coil 31 of Figure 28～shown in Figure 31 as the U phase coil, is offset to the right on the position of an about stator tooth 21 and similarly twines U ' coil.Similarly twine V coil further being offset on 3 the position to the right.Further be offset same winding V ' coil on 1 the position to the right.Similarly be offset W coil further being offset on 3 the position to the right.Similarly twine W ' coil further being offset on 1 the position to the right.Can constitute dual 3 phase systems like this.
The foregoing description is to have rotor that a plurality of magnetic poles are set on Zhou Fangxiang and the electric rotating machine that is configured in epitrochanterian stator via the space, in stator, electric angle 360 degree that constitute at the magnetic pole of rotor are with interior winding around, to dispose two magnetic pole of the stator that form by the coil turn and the stator core of homophase, it is electric angle 180 degree zones that the above-mentioned coil turn that forms each magnetic pole of the stator is configured to all orientation angle amplitudes, in the angular regions narrower, has multiple coil turn than the central portion of each angular regions, constitute the coil turn phase non-overlapping copies of two magnetic pole of the stator, and become the mode winding around circle of antipolarity with adjacent magnetic pole of the stator mutually.
Two coil turn that preferred stator is set to constitute magnetic pole of the stator in electric rotating machine are offset electric angle 180 degree mutually.
In addition, preferred stator constitutes the magnetic pole of the stator of three-phase in electric rotating machine, and is configured to be offset electric angle 120 degree respectively.
In addition, preferably in the stator of electric rotating machine, all orientation angle amplitudes of the multiple coil turn of 1 coil turn formation are electric angle 90 degree, 120 degree or 150 degree.
In addition, preferably in the stator of electric rotating machine, on the position with one in two groove insertion sections of each coil turn close rotor that is configured in groove, another is configured on the position away from rotor of groove.
In addition, preferably in the stator of electric rotating machine, spend with interior winding around, to dispose two homophase magnetic pole of the stator that form by coil turn with 2 or 2.5 numbers of turn in the defined electric angle 360 of rotor magnetic pole.
In addition, preferably in the stator of electric rotating machine, constitute the mode winding around of electric angle 180 degree with all orientation angle amplitudes in order to constitute a magnetic pole of the stator, insert this coil to groove at a distance of the groove of electric angle 180 degree afterwards with last insertion, from this groove, oppositely twine the coil of homophase with the coil turn that constitutes magnetic pole of the stator, to constitute other magnetic pole of the stator.
In addition, preferably in the stator of electric rotating machine, twine the coil of half-integer circle in the mode of all orientation angle amplitude formation electric angle 180 degree in order to constitute 1 magnetic pole of the stator, insert this coil to groove at a distance of the groove of electric angle 180 degree afterwards with last insertion, from this groove, oppositely twine the coil of homophase with the coil turn that constitutes magnetic pole of the stator, to constitute other magnetic pole of the stator.
In addition, preferably in the stator of electric rotating machine, for this in week the orientation angle amplitude constitute electric angle 180 degree and winding around, constitute the magnetic pole of the stator that forward twines, insert the magnetic pole of the stator that this coil constitutes the forward winding to groove at a distance of the groove of electric angle 180 degree with last this coil of insertion, with the coil turn that constitutes the magnetic pole of the stator that forward twines thus in the same way winding around constitute the magnetic pole of the stator that next forward twines, and in electric angle 180 degree of in the coil that forward twines, having crossed over, mode with magnetic pole of the stator phase deviation 180 degree that twine with forward, make this in week the orientation angle amplitude constitute magnetic pole of the stator that electric angle twines with forward in 180 degree oppositely winding around constitute the magnetic pole of the stator of reverse winding, insert this coil to groove at a distance of the groove of electric angle 180 degree with last insertion, from this groove, with the coil turn that constitutes the magnetic pole of the stator that oppositely twines winding around in the same way, to constitute magnetic pole of the stator that next oppositely twines.
In addition, preferably in above-mentioned electric rotating machine, the coil that will twine with forward and other different coils of the coil that oppositely twines insert in any one of two grooves being inserted with the coil turn that forward twines and oppositely twine respectively, and are wound in the waveform winding that constitutes electric angle 180 degree phase differences.
In addition, preferably in the stator of electric rotating machine, with this in week the orientation angle amplitude constitute electric angle 180 degree and the mode of winding around is twined according to wave winding and constituted the magnetic pole of the stator that forward twines, insert this coil to groove at a distance of the groove of electric angle 180 degree with last this coil of insertion, constitute the magnetic pole of the stator that next forward twines with the wave winding winding around in the same way with the coil turn of the magnetic pole of the stator that constitutes the forward winding, and in electric angle 180 degree that the coil that forward twines is crossed over, mode with magnetic pole of the stator phase deviation 180 degree that twine with forward, make this orientation angle amplitude constitute electric angle 180 degree and oppositely constitute the magnetic pole of the stator of reverse winding with the mode winding around of wave winding with the magnetic pole of the stator that forward twines in week, insert this coil to groove at a distance of the groove of electric angle 180 degree with last insertion, with the coil turn that constitutes the magnetic pole of the stator that oppositely twines in the same way with the mode winding around of wave winding, constitute magnetic pole of the stator that next oppositely twines.
In addition, in electric rotating machine, preferably possesses the rotor that on Zhou Fangxiang, is provided with a plurality of magnetic poles; And stator, this stator have above-mentioned the 1st winding group and with isostructural the 2nd winding group of the 1st winding faciation, the 1st winding group and the 2nd winding flock mating be changed to electric angle be offset mutually 20～40 the degree.
In addition in above-mentioned electric rotating machine, preferred the 1st winding group and the 2nd winding group constitute the said stator magnetic pole of three-phase respectively, the winding mutually of the 1st winding group and the 2nd winding group's mutual skew electric angle 20～40 degree is wrapped on the adjacent tooth to each other, and with the position of the close rotor that is inserted into groove in the mutually disjoint mode of end winding respectively with away from the position of rotor.Also preferred stator has 12 grooves in electric angle 360 degree in electric rotating machine in addition, and all orientation angle amplitudes of 1 coil turn formation are electric angle 90 degree, 120 degree or 150 degree.
In addition, in electric rotating machine, preferably have rotor and stator that a plurality of magnetic poles are set at Zhou Fangxiang, this stator have above-mentioned the 1st winding group and with the 2nd winding group of the 1st winding group different structure, the 1st winding group and the 2nd winding group are configured to electric angle and are offset 20～40 degree mutually, and the coil number that inserts in each groove equates.
Claims (16)
1. electric rotating machine, it has:
Rotor, it is provided with a plurality of magnetic poles on Zhou Fangxiang; And
Stator, it is configured on the above-mentioned rotor, and has the space between this stator and the above-mentioned rotor,
Said stator, the mode winding around of the magnetic pole of the stator that forms by the coil turn and the stator core of homophase with two of interior configurations with electric angle 360 degree that constitute at the magnetic pole of above-mentioned rotor, the all deflection amplitudes that form the above-mentioned coil turn of each magnetic pole of the stator are spent less than electric angle 180, the above-mentioned coil turn that constitutes two said stator magnetic poles is set to the phase non-overlapping copies, and above-mentioned coil turn is wound in adjacent said stator magnetic pole reversed polarity each other.
2. electric rotating machine according to claim 1, wherein,
Two above-mentioned coil turn that constitute the said stator magnetic pole in the said stator are offset electric angle 180 degree mutually.
3. electric rotating machine according to claim 1, wherein,
Said stator constitutes the said stator magnetic pole of 3 phases and is electric angle 60 degree skews respectively.
4. electric rotating machine according to claim 1, wherein,
All deflection amplitudes of an above-mentioned coil turn formation are electric angle 90 degree, 120 degree or 150 degree in the said stator.
5. electric rotating machine according to claim 1, wherein,
One of two of each coil turn groove insertion sections are configured in the position of the close rotor of groove in the said stator, and another of above-mentioned two groove insertion sections is configured in the position away from rotor of groove.
6. electric rotating machine according to claim 1, wherein,
Said stator is with the mode winding around of the homophase magnetic pole of the stator that formed by the coil turn with 2 numbers of turn or 3 numbers of turn with two of interior configurations by electric angle 360 degree of the magnetic pole of above-mentioned rotor definition.
7. electric rotating machine according to claim 1, wherein,
In said stator, is that the mode of electric angle 120 degree has been twined after the coil in order to constitute a said stator magnetic pole with all deflection amplitudes, insert this coil to groove at a distance of the groove of electric angle 180 degree, begin to constitute other magnetic pole of the stator with the coil of the direction winding homophase opposite with the above-mentioned coil turn that constitutes the said stator magnetic pole from this groove with last insertion.
8. electric rotating machine according to claim 1, wherein,
In said stator, is that the mode half-integer of electric angle 120 degree is enclosed the land after the winding around in order to constitute a said stator magnetic pole with all deflection amplitudes, insert this coil to groove at a distance of the groove of electric angle 180 degree, begin to constitute other magnetic pole of the stator with the coil of the direction winding homophase opposite with the above-mentioned coil turn that constitutes the said stator magnetic pole from this groove with last insertion.
9. electric rotating machine according to claim 1, wherein,
In said stator, with its all deflection amplitude is the said stator magnetic pole of the mode winding around formation forward winding of electric angle 120 degree, insert this coil to groove at a distance of the groove of electric angle 240 degree with last this coil of insertion, constitute the said stator magnetic pole that next forward twines with the direction winding around identical with the coil turn of the magnetic pole of the stator that constitutes above-mentioned forward winding, and in electric angle 240 degree that the coil that above-mentioned forward twines is crossed over, mode with magnetic pole of the stator phase deviation 180 degree that twine with above-mentioned forward, making its all deflection amplitude is oppositely winding around of electric angle 120 degree and the said stator magnetic pole that twines with above-mentioned forward, constitute the magnetic pole of the stator that oppositely twines, in the groove of electric angle 240 degree, insert this coil to groove with last this coil of insertion, from this groove begin with the identical direction winding around of coil turn of the magnetic pole of the stator that constitutes above-mentioned reverse winding, constitute said stator magnetic pole that next oppositely twines.
10. electric rotating machine according to claim 9, wherein,
The coil that twines with above-mentioned forward other coils different with the coil of above-mentioned reverse winding are inserted into any one party in two grooves that are inserted with the coil turn that forward twines and oppositely twine respectively, and are wound in the waveform winding that constitutes electric angle 180 degree phase differences.
11. electric rotating machine according to claim 1, wherein,
In said stator, with its all deflection amplitude is the said stator magnetic pole of the mode of electric angle 120 degree according to the winding of wave winding winding around formation forward, insert this coil to groove at a distance of the groove of electric angle 240 degree with last this coil of insertion, twine above-mentioned coil with the direction identical according to wave winding and constitute the said stator magnetic pole that next forward twines with the coil turn of the magnetic pole of the stator that constitutes above-mentioned forward winding, and in electric angle 240 degree that the coil that above-mentioned forward twines is crossed over, mode with magnetic pole of the stator phase deviation 180 degree that twine with above-mentioned forward, making its all deflection amplitude is that electric angle 120 degree and the said stator magnetic pole that twines with above-mentioned forward are oppositely according to the wave winding winding around, constitute the magnetic pole of the stator that oppositely twines, in the groove of electric angle 240 degree, insert this coil to groove with last this coil of insertion, twine above-mentioned coil with the direction identical according to wave winding, constitute the said stator magnetic pole that next oppositely twines with the coil turn of the magnetic pole of the stator that constitutes above-mentioned reverse winding.
12. electric rotating machine, possess rotor and the described stator of claim 1 that Zhou Fangxiang is provided with a plurality of magnetic poles, said stator have the 1st winding group and with isostructural the 2nd winding group of above-mentioned the 1st winding faciation, above-mentioned the 1st winding group and above-mentioned the 2nd winding group be configured to electric angle be offset mutually 20～40 the degree.
13. electric rotating machine according to claim 12, wherein,
Above-mentioned the 1st winding group constitutes 3 said stator magnetic poles mutually respectively with the 2nd winding group,
The winding mutually that above-mentioned the 1st winding group and the 2nd winding faciation are offset electric angle 20～40 degree mutually is wrapped on the adjacent tooth each other, and, be inserted into respectively in mutually disjoint mode at end winding groove close rotor the position and away from the position of rotor.
14. electric rotating machine according to claim 12, wherein,
Said stator has 12 grooves at electric angle 360 degree, and all deflection amplitudes of an above-mentioned coil turn formation are electric angle 90 degree, 120 degree or 150 degree.
15. electric rotating machine, possess rotor and the described stator of claim 1 that Zhou Fangxiang is provided with a plurality of magnetic poles, said stator have the 1st winding group and with the 2nd winding group of above-mentioned the 1st winding group different structure, above-mentioned the 1st winding group and above-mentioned the 2nd winding group are configured to electric angle and are offset 20～40 degree mutually, and the coil number that inserts in each groove equates.
16. an electric rotating machine has:
Rotor, it is provided with a plurality of magnetic poles on Zhou Fangxiang; And
Stator, it is configured on the above-mentioned rotor, and has the space between this stator and the above-mentioned rotor,
Said stator, the mode winding around of the magnetic pole of the stator that forms by the coil turn and the stator core of homophase with two of interior configurations with electric angle 360 degree that constitute at the magnetic pole of above-mentioned rotor, the all orientation angle amplitudes that form the above-mentioned coil turn of each magnetic pole of the stator are set in the electric angle 180 degree zones, narrow angular zone in each angular regions has multiple coil turn, constitute the above-mentioned coil turn phase non-overlapping copies of two said stator magnetic poles, and above-mentioned coil turn is wound in adjacent said stator magnetic pole reversed polarity each other.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593976A (en) * | 2011-01-04 | 2012-07-18 | 阿斯莫有限公司 | Motor |
| CN102957223A (en) * | 2011-08-24 | 2013-03-06 | 三菱电机株式会社 | Automotive alternating-current generator |
| CN103329404A (en) * | 2010-12-01 | 2013-09-25 | 罗伯特·博世有限公司 | Stator winding comprising multiple phase windings |
| CN106464109A (en) * | 2014-05-16 | 2017-02-22 | 电装多利牡株式会社 | Rotating electric machine for internal combustion engine and method for manufacturing same |
| CN110556934A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator assembly and motor with same |
| CN110556932A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator module and motor |
| CN110556952A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator module and motor |
| CN110556957A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | stator assembly and motor |
| CN110556933A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator module and motor |
| CN111835102A (en) * | 2019-04-22 | 2020-10-27 | 株式会社电装 | Rotating electrical machine |
| CN113544944A (en) * | 2019-03-04 | 2021-10-22 | 三菱电机株式会社 | Generator motor and method for manufacturing the same |
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| JPS6237406Y2 (en) * | 1978-02-28 | 1987-09-24 | ||
| JPS60128852A (en) * | 1983-12-12 | 1985-07-09 | Toshiba Corp | Double 3-phase commutatorless motor |
| JPH07143696A (en) * | 1993-11-16 | 1995-06-02 | Nissan Motor Co Ltd | Motor |
| US5994812A (en) * | 1996-10-29 | 1999-11-30 | Siemens Canada Limited | D.C. motor phase windings and their commutation |
| US5929549A (en) * | 1998-04-02 | 1999-07-27 | Pacific Scientific Company | Fault tolerant electric machine |
| US6864667B2 (en) * | 2001-01-18 | 2005-03-08 | Delphi Technologies, Inc. | Stator winding pattern for reduced magnetic noise |
| CN2548352Y (en) * | 2002-05-23 | 2003-04-30 | 重庆力帆实业（集团）有限公司 | 12-step single-phase magnetor |
| CN1458734A (en) * | 2003-05-28 | 2003-11-26 | 刘硕成 | Three phase AC permanent magnet synchronous motor |
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- 2009-08-19 CN CN201210350217.6A patent/CN102931748B/en not_active Expired - Fee Related
- 2009-08-19 CN CN200910163415XA patent/CN101795026B/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329404A (en) * | 2010-12-01 | 2013-09-25 | 罗伯特·博世有限公司 | Stator winding comprising multiple phase windings |
| CN102593976A (en) * | 2011-01-04 | 2012-07-18 | 阿斯莫有限公司 | Motor |
| CN102593976B (en) * | 2011-01-04 | 2016-09-28 | 阿斯莫有限公司 | Motor |
| CN102957223A (en) * | 2011-08-24 | 2013-03-06 | 三菱电机株式会社 | Automotive alternating-current generator |
| CN102957223B (en) * | 2011-08-24 | 2015-02-25 | 三菱电机株式会社 | Automotive alternating-current generator |
| CN106464109A (en) * | 2014-05-16 | 2017-02-22 | 电装多利牡株式会社 | Rotating electric machine for internal combustion engine and method for manufacturing same |
| CN106464109B (en) * | 2014-05-16 | 2018-12-07 | 电装多利牡株式会社 | Internal combustion engine rotating electric machine and its manufacturing method |
| CN110556932A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator module and motor |
| CN110556934A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator assembly and motor with same |
| CN110556952A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator module and motor |
| CN110556957A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | stator assembly and motor |
| CN110556933A (en) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | Stator module and motor |
| CN110556957B (en) * | 2018-05-31 | 2021-09-21 | 比亚迪股份有限公司 | Stator assembly and motor |
| CN110556932B (en) * | 2018-05-31 | 2021-10-22 | 比亚迪股份有限公司 | Stator module and motor |
| CN113544944A (en) * | 2019-03-04 | 2021-10-22 | 三菱电机株式会社 | Generator motor and method for manufacturing the same |
| US11855500B2 (en) | 2019-03-04 | 2023-12-26 | Mitsubishi Electric Corporation | Generator-motor and method for manufacturing generator-motor |
| CN113544944B (en) * | 2019-03-04 | 2024-01-02 | 三菱电机株式会社 | Generator motor and method for manufacturing same |
| CN111835102A (en) * | 2019-04-22 | 2020-10-27 | 株式会社电装 | Rotating electrical machine |
| CN111835102B (en) * | 2019-04-22 | 2023-09-26 | 株式会社电装 | Rotary electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102931748B (en) | 2016-04-20 |
| CN102931748A (en) | 2013-02-13 |
| CN101795026B (en) | 2012-11-14 |
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