CN204886471U - Rotor, motor and electric motor car - Google Patents
Rotor, motor and electric motor car Download PDFInfo
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- CN204886471U CN204886471U CN201520673731.2U CN201520673731U CN204886471U CN 204886471 U CN204886471 U CN 204886471U CN 201520673731 U CN201520673731 U CN 201520673731U CN 204886471 U CN204886471 U CN 204886471U
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Abstract
The utility model provides a rotor, motor and electric motor car, wherein, the rotor includes: rotor core, rotor core is last to set up a plurality of magnet steel grooves, the magnet steel piece is arranged in the magnet steel groove to form a plurality of N level, S level magnetic poles of distribution in turn of pressing on rotor core, wherein, arbitrary magnetic pole includes at least one first magnetic pole and at least one second magnetic pole, and just first magnetic pole, second magnetic pole are formed by two magnet steel pieces combinations at least. In addition, rotor core's lateral wall comprises a plurality of arc surfaces along circumference distribution and decentraction, and the quantity of arc surface is unanimous with the quantity of magnetic pole. This technical scheme, each magnetic pole on the rotor all include shape that a plurality of magnet steel pieces made up first magnetic pole, the second magnetic pole like V -arrangement or U -shaped to alright form two V magnetic poles, double -H groove weld magnetic pole etc. On rotor core, gather magnetic energy power with what improve the rotor, in addition, back electromotive force that the setting of arc surface can make the motor is convergence in sine wave more, thereby has improved the wholeness ability of motor.
Description
Technical field
The utility model relates to electric automobiles, more specifically, relates to a kind of rotor, motor and electric motor car.
Background technology
In recent years, because electric motor car has environmental protection, practicality, the advantage such as light, to become a kind of main stream traffic instrument gradually, but the rotor of the magneto of electric motor car at present or low-speed electronic automobile, as shown in Figure 1, generally all adopts tile type magnetic steel structure, tile type magnetic steel structure can cause magnetic steel material (rare earth, a kind of non-renewable strategic resource, price comparison is expensive) a large amount of wastes, thus the cost of magneto can be caused higher.Meanwhile, in correlation technique, the magnetic pole of rotor by monolithic magnet steel composition, thus makes that the poly-magnetic energy power of rotor is more weak, power is less.In addition, in correlation technique, the sine of the back electromotive force of magneto, the waveform of air-gap field is poor, harmonic wave is more and noise is comparatively large, efficiency is lower, thus make motor that sine wave or low cost vector controller can not be adopted to control the work of motor, thus namely reduce the operating efficiency of motor, again reduce Consumer's Experience.
Therefore, how to design a kind of poly-magnetic energy power and the power that namely can improve motor, the rotor that can improve again the air gap flux density of motor becomes current problem demanding prompt solution.
Utility model content
The utility model is intended at least to solve one of technical problem existed in prior art or correlation technique.
The utility model, just based on the problems referred to above, provides a kind of poly-magnetic energy power and the power that namely can improve motor, can improve again the rotor of the air gap flux density of motor.
Another object of the present utility model is, provides a kind of motor containing above-mentioned rotor.
Another object of the present utility model is, provides a kind of electric motor car containing above-mentioned motor.
For achieving the above object, the utility model first aspect embodiment provides a kind of rotor, for motor, comprising: rotor core, described rotor core is arranged multiple magnet steel groove; Magnetic links, is arranged in described magnet steel groove, multiple by N level, the alternatively distributed magnetic pole of S level to be formed on described rotor core; Wherein, arbitrary described magnetic pole comprises at least one first magnetic pole and at least one second magnetic pole, and described first magnetic pole, described second magnetic pole are at least combined by two described magnetic links.
According to the rotor of embodiment of the present utility model, epitrochanterian magnetic pole presses N level on rotor core, S level is alternately distributed, and each magnetic pole includes at least one first magnetic pole, at least one second magnetic pole, and the first magnetic pole and the second magnetic pole combine by multiple magnetic links, thus, multiple magnetic links can be combined into various shape by us, to obtain the first magnetic pole of respective shapes, second magnetic pole, thus the acting in conjunction of the first magnetic pole and the second magnetic pole can be utilized, improve the poly-magnetic energy power of motor and the power of rotor, increase the maximum twist moment of motor, and then the overall performance of motor can be improved.In addition, this kind of structure can also improve the air gap flux density of motor, thus make the torque density of motor larger, namely the motor of Unit Weight (or unit volume) can export larger power, therefore, this kind of rotor can combine with without Hall control technology and use, thus makes motor namely can have many-sided advantage such as less trouble without Hall control technology, the shortcoming be short of power without Hall control technology can be made up again, and then the overall performance of motor can be improved from many aspects.
Preferably, the lateral wall of described rotor core by multiple circumferentially distribution and the arc surface of decentraction form, and the quantity of described arc surface is consistent with the quantity of described magnetic pole.
Preferably, multiple arc surface is symmetrical on described outer side surface.
According to the rotor of embodiment of the present utility model, the lateral wall of rotor core is by circumferentially to distribute and multiple arc surfaces of decentraction form, and the quantity of arc surface is consistent with the quantity of the magnetic pole of rotor.This kind of design can make the air-gap field waveform of the back electromotive force of motor, motor more level off to sine wave, thus just can improve the operating efficiency of motor, simultaneously, also sinusoidal wave isovector controller just can be utilized to control the work of motor, thus namely can lifting motor run time stationarity, can reduce again motor run time noise.Therefore, when this rotor to combine with without Hall control technology use time, namely motor just can have without many-sided advantages such as Hall control technology less troubles, can make up again without the large shortcoming of Hall control technology noise, thus can improve the overall performance of motor further from many aspects.
According to an embodiment of the present utility model, preferably, described first magnetic pole, described second magnetic pole are by two described magnetic links compositions, and two described magnetic links all arrange forming V-shape on described rotor core; Wherein, the first V-arrangement forming described first magnetic pole is positioned at the second V-arrangement forming described second magnetic pole, and described first V-arrangement is consistent with the opening direction of described second V-arrangement.
According to the rotor of embodiment of the present utility model, first magnetic pole is made up of two magnetic links, and two magnetic links are arranged in the first V-arrangement on rotor core, second magnetic pole is also made up of two magnetic links, and these two magnetic links arrange the second V-arrangement on rotor core, and the second V-arrangement is set in outside the first V-arrangement.Particularly, when the quantity of the first magnetic pole and the second magnetic pole is one, namely four magnetic links are symmetric with arbitrary radius of rotor core, and when being arranged in two V-arrangement, just two V magnetic pole can formed on rotor core, this kind of two V magnetic pole has better poly-magnetic energy power compared to the magnetic pole that single V-arrangement magnetic pole or tile magnet steel are formed, thus can improve the maximum twist moment of the power of motor and efficiency, increase motor.Wherein, preferably, two V magnetic poles of multiple N level, S level are centrosymmetric distribution on described rotor core, because Central Symmetry can make rotor produce uniform magnetic field, thus can make rotor uniform force, and then just can improve the stationarity of rotor.Certainly, the quantity of the first magnetic pole and the second magnetic pole also can be multiple, therefore, just can form multilayer V-arrangement magnetic pole.
In addition, in other embodiments of the present utility model, arbitrary magnetic pole is except comprising the first magnetic pole, outside second magnetic pole, arbitrary magnetic pole also can also comprise the 3rd magnetic pole, 4th magnetic pole, N magnetic pole, and due to the first magnetic pole, second magnetic pole is preferably the V-arrangement magnetic pole of two magnetic links compositions, therefore just can be formed on rotor core and press N level, the three V magnetic poles that S level is arranged alternately, four V magnetic poles and NV magnetic pole (N be greater than four integer), and then by the synergy of many V magnetic pole, improve the power of motor and efficiency further and increase the maximum twist moment of motor further, simultaneously, also the air gap magnetic density waveform of motor can be improved further, to improve the overall performance of motor.
According to another embodiment of the present utility model, preferably, described first magnetic pole, described second magnetic pole are by three described magnetic links compositions, and three described magnetic links are all arranged in U-shaped on described rotor core; Wherein, the first U-shaped forming described first magnetic pole is positioned at the second U-shaped forming described second magnetic pole, and described first U-shaped is consistent with the opening direction of described second U-shaped.
According to the rotor of embodiment of the present utility model, first magnetic pole is made up of three magnetic links, and three magnetic links are arranged in the first U-shaped on rotor core, second magnetic pole is also made up of three magnetic links, and these three magnetic links arrange the second U-shaped on rotor core, and the second U-shaped is set in outside the first U-shaped.Particularly, when the quantity of the first magnetic pole and the second magnetic pole is one, namely six magnetic links are symmetric with arbitrary radius of rotor core, and when being arranged in dual U-shaped, just double-H groove weld magnetic pole can be formed on rotor core, this kind of double-H groove weld magnetic pole has better poly-magnetic energy power compared to the magnetic pole that single U-shaped magnetic pole or tile magnet steel are formed, thus can improve the maximum twist moment of the power of motor and efficiency, increase motor.Wherein, preferably, the double-H groove weld magnetic pole of multiple N level, S level is centrosymmetric distribution on described rotor core, because Central Symmetry can make rotor produce uniform magnetic field, thus can make rotor uniform force, and then just can improve the stationarity of rotor.Certainly, the quantity of the first magnetic pole and the second magnetic pole also can be multiple, therefore, just can form Multilayer U-shaped magnetic pole.
In addition, in other embodiments of the present utility model, arbitrary magnetic pole is except comprising the first magnetic pole, outside second magnetic pole, arbitrary magnetic pole also can also comprise the 3rd magnetic pole, 4th magnetic pole, N magnetic pole, and due to the first magnetic pole, second magnetic pole is preferably the U-shaped magnetic pole of three magnetic links compositions, therefore, thus three U magnetic poles can be formed on rotor core, four U magnetic poles and NU magnetic pole, and then by the synergy of many U magnetic pole, improve the power of motor and efficiency further and increase the maximum twist moment of motor further, simultaneously, also the air gap magnetic density waveform of motor can be improved further, to improve the overall performance of motor.
Preferably, the circular arc of described arc surface is sine curve circular arc.
According to embodiment of the present utility model, the circular arc of arc surface is sine curve circular arc, that is the cross section of the outer side surface of rotor core is the annular edge as petal of multiple sinusoidal segments composition, this kind of design, sine wave is more leveled off to by making the back electromotive force of motor, thus be namely convenient to the operating efficiency improving motor, be convenient to again utilize sinusoidal wave isovector controller to control the work of motor, thus namely can further lifting motor run time stationarity, can reduce further again motor run time noise.Particularly, if multiple magnetic links forms multiple U-shaped or V magnetic pole, then the opening corresponding ground sidewall of each U-shaped or V is then arranged to correspondingly arc surface, and therefore, the quantity of arc surface just can be consistent with the quantity of the magnetic pole of rotor all the time.Certainly, in other embodiment of the present utility model, the circular arc of arc surface also can also be common circular arc, and therefore, in the present embodiment, the circular arc of arc surface is preferably sine curve circular arc but is not limited to sine curve circular arc.
Preferably, described magnet steel groove is rectangular channel, described magnetic links is rectangle magnetic links.
According to the rotor of embodiment of the present utility model, magnet steel groove is rectangular channel, magnetic links is rectangle magnetic links, therefore, when concrete processing magnetic links, a large amount of wastes of magnetic steel material can not be caused as tile type magnet steel, thus the consumption of rare earth material can be reduced, to reduce the material cost of the magnet steel of rotor.
Certainly, the shape of magnetic links also can also be the polygon of the Else Rules such as square, and therefore magnetic links is preferably rectangle magnetic links but is not limited to rectangle magnetic links.
Preferably, the length forming the described magnetic links of described first magnetic pole is less than the length of the described magnetic links forming described second magnetic pole.
According to the rotor of embodiment of the present utility model, the length forming the described magnetic links of described first magnetic pole is less than the length of the described magnetic links forming described second magnetic pole, and the magnetic links forming described first magnetic pole is distributed in one end of the magnetic links of described composition second magnetic pole, such as, when magnetic pole is two V magnetic pole, first V-arrangement is only positioned at the opening part of the second V-arrangement, this kind of structure can improve poly-magnetic energy power and the power of rotor, the maximum twist moment of increase motor of motor, and then can improve the operating efficiency of motor.
Particularly, the quantity of described magnetic pole is even number.
According to the rotor of embodiment of the present utility model, because magnetic pole comprises N level and S level, and need to occur in pairs, therefore the quantity of magnetic pole is even number, and even number of poles is alternately distributed by N level, S level.
Particularly, described rotor also comprises: rotating shaft, for the Power output by described rotor; Wherein, described rotor core is set on described rotor.
According to the rotor of embodiment of the present utility model, rotating shaft is used for the Power output produced by rotor, thus motor can be utilized to drive load, particularly, rotor core is set in rotating shaft, and rotating shaft can rotate under the driving of rotor core, thus rotating shaft just can be utilized to drive load movement.
The embodiment of the utility model second aspect provides a kind of motor, comprising: stator; And the rotor described in above-mentioned any one embodiment; Wherein, described stator rotates for driving described rotor.
According to the motor that embodiment of the present utility model provides, comprise the rotor that above-mentioned any one embodiment provides, therefore, the motor that embodiment of the present utility model provides has whole beneficial effects of the rotor that above-mentioned any one embodiment provides, and at this, repeats no more.
In addition, this motor also comprises stator, and wherein, stators and rotators coordinates, and rotor can be made to continue to rotate, thus motor just can be utilized to drive load movement.Meanwhile, by changing the size of stators and rotators, to change the air gap flux density of motor, thus the object of the operating efficiency improving motor can also can also be reached.
Particularly, described stator is wound with coil, wherein, the induced field produced during described coil electricity, the magnetic field interaction produced with the magnetic links of described rotor, can drive described rotor to rotate.
According to the motor that embodiment of the present utility model provides, stator is wound with multiturn coil, during multiturn coil energising, can produce magnetic field, the magnetic field of this magnetic field and magnetic links attracts each other, just rotor can be made to rotate, therefore, as long as change sense of current in coil, the polarity in the magnetic field that coil produces can just be changed, thus the magnetic field of stator and the magnetic field of rotor can be made to attract each other all the time, and then rotor just can be made to continue to rotate.
The embodiment of the utility model third aspect provides a kind of electric motor car, comprising: controller; And the motor of above-mentioned any one embodiment; Wherein, described controller is for controlling the work of described motor.
According to the electric motor car that embodiment of the present utility model provides, comprise the motor that above-described embodiment provides, therefore, the motor that embodiment of the present utility model provides has whole beneficial effects of the rotor that above-mentioned any one embodiment provides, in addition, also comprise controller in this electric motor car, this controller can be used for the size, direction etc. of the electric current of the coil controlled on motor stator, thus rotating speed, moment of torsion, the power of just adjustable motor.
Preferably, described controller is vector controller.
According to the electric motor car that embodiment of the present utility model provides, controller is vector controller, and be preferably sinusoidal wave controller, because, sinusoidal wave controller can produce stable control signal, thus can improve motor run time stationarity, lower motor run time noise, and then can improve electric motor car combination property, promote Consumer's Experience.
Preferably, described controller is without hall controller.
According to the electric motor car that embodiment of the present utility model provides, the advantage that the power combining the rotor of above-described embodiment is large, noise is low etc., there is again the advantage without Hall element failure rate is low simultaneously, thus from many aspects improve electric motor car overall performance, and then improve Consumer's Experience.
Additional aspect of the present utility model and advantage provide in description part below, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the rotor provided according to prior art;
Fig. 2 is the structural representation of the rotor provided according to embodiment of the present utility model;
Fig. 3 is the structural representation of the rotor provided according to another embodiment of the present utility model.
Embodiment
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from mode described here to implement, and therefore, protection range of the present utility model is not by the restriction of following public specific embodiment.
The rotor provided according to an embodiment of the present utility model is described referring to Fig. 2 and Fig. 3.
As shown in Figure 2, the utility model first aspect embodiment provides a kind of rotor, for motor, comprising: rotor core 1, rotor core 1 is arranged multiple magnet steel groove; Magnetic links 2, is arranged in magnet steel groove, multiple by N level, the alternatively distributed magnetic pole of S level to be formed on rotor core 1; Wherein, arbitrary magnetic pole comprises at least one first magnetic pole 3 and at least one second magnetic pole 4, and the first magnetic pole 3, second magnetic pole 4 is at least combined by two magnetic links 2.
According to the rotor of embodiment of the present utility model, epitrochanterian magnetic pole presses N level on rotor core 1, S level is alternately distributed, and each magnetic pole includes at least one first magnetic pole 3, at least one second magnetic pole 4, and the first magnetic pole 3 and the second magnetic pole 4 combine by multiple magnetic links 2, thus, multiple magnetic links 2 can be combined into various shape by us, to obtain the first magnetic pole 3 of respective shapes, second magnetic pole 4, thus the acting in conjunction of the first magnetic pole 3 and the second magnetic pole 4 can be utilized, improve the poly-magnetic energy power of motor and the power of rotor, increase the maximum twist moment of motor, and then the operating efficiency overall performance of motor can be improved.In addition, this kind of structure can also improve the air gap flux density of motor, thus make the torque density of motor larger, namely the motor of Unit Weight (or unit volume) can export larger power, therefore, this kind of rotor can combine with without Hall control technology and use, thus makes motor namely can have many-sided advantage such as less trouble without Hall control technology, the shortcoming be short of power without Hall control technology can be made up again, and then the overall performance of motor can be improved from many aspects.
Preferably, as shown in Figure 3, the lateral wall of rotor core 1 by multiple circumferentially distribution and the arc surface 11 of decentraction form, and the quantity of arc surface 11 and the quantity of magnetic pole consistent.
Preferably, multiple arc surface 11 is symmetrical on outer side surface.
According to the rotor of embodiment of the present utility model, the lateral wall of rotor core 1 is by circumferentially to distribute and multiple arc surfaces 11 of decentraction form, and the quantity of arc surface 11 is consistent with the quantity of the magnetic pole of rotor.This kind of design can make the back electromotive force of motor, the air-gap field waveform of motor levels off to sine wave more, thus just can improve the operating efficiency of motor, simultaneously, also sinusoidal wave isovector controller just can be utilized to control the work of motor, thus namely can lifting motor run time stationarity, noise when motor runs can be reduced again, therefore, when this rotor to combine with without Hall control technology use time, namely motor just can have without many-sided advantages such as Hall technology less troubles, can make up again without the large shortcoming of Hall technology noise, thus the overall performance of motor can be improved further from many aspects.
According to an embodiment of the present utility model, preferably, as shown in Figures 2 and 3, the first magnetic pole 3, second magnetic pole 4 forms by two magnetic links 2, and two magnetic links 2 all arrange forming V-shape on rotor core 1; Wherein, the first V-arrangement forming the first magnetic pole 3 is positioned at the second V-arrangement of composition second magnetic pole 4, and the first V-arrangement is consistent with the opening direction of the second V-arrangement.
According to the rotor of embodiment of the present utility model, first magnetic pole 3 is made up of two magnetic links 2, and two magnetic links 2 are arranged in the first V-arrangement on rotor core 1, second magnetic pole 4 is also made up of two magnetic links 2, and these two magnetic links 2 arrange the second V-arrangement on rotor core 1, and the second V-arrangement is set in outside the first V-arrangement.Particularly, when the quantity of the first magnetic pole and the second magnetic pole is one, namely four magnetic links 2 are symmetric with arbitrary radius of rotor core 1, and when being arranged in two V-arrangement, just two V magnetic pole can be formed on rotor core 1, this kind of two V magnetic pole has better poly-magnetic energy power compared to the magnetic pole that single V-arrangement magnetic pole or tile magnet steel are formed, thus can improve the maximum twist moment of the power of motor and efficiency, increase motor.Wherein, preferably, two V magnetic poles of multiple N level, S level are centrosymmetric distribution on rotor core 1, because Central Symmetry can make rotor produce uniform magnetic field, thus can make rotor uniform force, and then just can improve the stationarity of rotor.Certainly, the quantity of the first magnetic pole and the second magnetic pole also can be multiple, therefore, just can form multilayer V-arrangement magnetic pole.
In addition, in other embodiments of the present utility model, arbitrary magnetic pole is except comprising the first magnetic pole 3, outside second magnetic pole 4, also the 3rd magnetic pole can also be comprised, 4th magnetic pole, N magnetic pole, and due to the first magnetic pole 3, second magnetic pole 4 is preferably the V-arrangement magnetic pole that two magnetic links 2 form, therefore, just can be formed on rotor core and press N level, the three V magnetic poles that S level is arranged alternately, four V magnetic poles and NV magnetic pole (N be greater than four integer), and then by the synergy of many V magnetic pole, improve the power of motor and efficiency further and increase the maximum twist moment of motor further, simultaneously, also the air gap magnetic density waveform of motor can be improved further, to improve the overall performance of motor.
According to another embodiment of the present utility model, preferably, the first magnetic pole 3, second magnetic pole 4 forms by three magnetic links 2, and three magnetic links 2 are all arranged in U-shaped on rotor core 1; Wherein, the first U-shaped forming the first magnetic pole 3 is positioned at the second U-shaped of composition second magnetic pole 4, and the first U-shaped is consistent with the opening direction of the second U-shaped.
According to the rotor of embodiment of the present utility model, first magnetic pole 3 is made up of three magnetic links 2, and three magnetic links 2 are arranged in the first U-shaped on rotor core 1, second magnetic pole 4 is also made up of three magnetic links 2, and these three magnetic links 2 arrange the second U-shaped on rotor core 1, and the second U-shaped is set in outside the first U-shaped.Particularly, when the quantity of the first magnetic pole and the second magnetic pole is one, namely six magnetic links 2 are symmetric with arbitrary radius of rotor core 1, and when being arranged in dual U-shaped, just double-H groove weld magnetic pole can be formed on rotor core 1, this kind of double-H groove weld magnetic pole has better poly-magnetic energy power compared to the magnetic pole that single U-shaped magnetic pole or tile magnet steel are formed, thus can improve the maximum twist moment of the power of motor and efficiency, increase motor.Wherein, preferably, the double-H groove weld magnetic pole of multiple N level, S level is centrosymmetric distribution on rotor core 1, because Central Symmetry can make rotor produce uniform magnetic field, thus can make rotor uniform force, and then just can improve the stationarity of rotor.Certainly, the quantity of the first magnetic pole and the second magnetic pole also can be multiple, therefore, just can form Multilayer U-shaped magnetic pole.
In addition, in other embodiments of the present utility model, arbitrary magnetic pole is except comprising the first magnetic pole 3, outside second magnetic pole 4, arbitrary magnetic pole also can also comprise the 3rd magnetic pole, 4th magnetic pole, N magnetic pole, and due to the first magnetic pole 3, second magnetic pole 4 is preferably the U-shaped magnetic pole of three magnetic links compositions, therefore, thus can be formed on rotor core and press N level, the three U magnetic poles that S level is arranged alternately, four U magnetic poles and NU magnetic pole (N be greater than four integer), and then by the synergy of many U magnetic pole, improve the power of motor and efficiency further and increase the maximum twist moment of motor further, simultaneously, also the air gap magnetic density waveform of motor can be improved further, to improve the overall performance of motor.
Preferably, as shown in Figure 3, the circular arc of arc surface 11 is sine curve circular arc.
According to embodiment of the present utility model, the circular arc of arc surface 11 is sine curve circular arc, that is the cross section of the outer side surface of rotor core 1 is the annular edge as petal of multiple sinusoidal segments composition, this kind of design, sine wave is more leveled off to by making the back electromotive force of motor, thus be namely convenient to the operating efficiency improving motor, be convenient to again utilize sinusoidal wave isovector controller to control the work of motor, thus namely can further lifting motor run time stationarity, can reduce further again motor run time noise.Particularly, if multiple magnetic links 2 forms multiple U-shaped or V magnetic pole, then the opening corresponding ground sidewall of each U-shaped or V is then arranged to correspondingly arc surface 11, and therefore, the quantity of arc surface 11 just can be consistent with the quantity of the magnetic pole of rotor all the time.Certainly, in other embodiment of the present utility model, the circular arc of arc surface also can also be common circular arc, and therefore, in the present embodiment, the circular arc of arc surface is preferably sine curve circular arc but is not limited to sine curve circular arc.
Preferably, as shown in Figures 2 and 3, magnet steel groove is rectangular channel, magnetic links 2 is rectangle magnetic links.
According to the rotor of embodiment of the present utility model, magnet steel groove is rectangular channel, magnetic links 2 is rectangle magnetic links, therefore, when concrete processing magnetic links 2, a large amount of wastes of magnetic steel material can not be caused as tile type magnet steel, thus the consumption of rare earth material can be reduced, to reduce the material cost of the magnet steel of rotor.
Certainly, the shape of magnetic links 2 also can also be the polygon of the Else Rules such as square, and therefore magnetic links 2 is preferably rectangle magnetic links but is not limited to rectangle magnetic links.
Preferably, as shown in Figures 2 and 3, the length forming the magnetic links of the first magnetic pole 3 is less than the length of the magnetic links of composition second magnetic pole 4.
According to the rotor of embodiment of the present utility model, the length forming the magnetic links of the first magnetic pole 3 is less than the length of the magnetic links of composition second magnetic pole 4, and the magnetic links of composition the second magnetic pole 4 is distributed in one end of the magnetic links of composition first magnetic pole 3, such as, when magnetic pole is two V magnetic pole, first V-arrangement is only positioned at the opening part of the second V-arrangement, and this kind of structure can improve poly-magnetic energy power and the power of rotor, the maximum twist moment of increase motor of motor, and then can improve the operating efficiency of motor.
Particularly, as shown in Figures 2 and 3, the quantity of magnetic pole is even number.
According to the rotor of embodiment of the present utility model, because magnetic pole comprises N level and S level, and need to occur in pairs, therefore the quantity of magnetic pole is even number, and even number of poles is alternately distributed by N level, S level.
Particularly, rotor also comprises: rotating shaft, for the Power output by rotor; Wherein, rotor core 1 is set in rotating shaft.
According to the rotor of embodiment of the present utility model, rotating shaft is used for the Power output produced by rotor, thus motor can be utilized to drive load, particularly, rotor core 1 is set in rotating shaft, and rotating shaft can rotate under the driving of rotor core 1, thus rotating shaft just can be utilized to drive load movement.
The embodiment of the utility model second aspect provides a kind of motor (not shown), comprising: stator; And the rotor described in above-mentioned any one embodiment; Wherein, stator rotates for driving rotor.
According to the motor that embodiment of the present utility model provides, comprise the rotor that above-mentioned any one embodiment provides, therefore, the motor that embodiment of the present utility model provides has whole beneficial effects of the rotor that above-mentioned any one embodiment provides, and at this, repeats no more.
In addition, this motor also comprises stator, and wherein, stators and rotators coordinates, and rotor can be made to continue to rotate, thus motor just can be utilized to drive load movement.Meanwhile, by changing the size of stators and rotators, to change the air gap flux density of motor, thus the object of the operating efficiency improving motor can also can also be reached.
Particularly, stator is wound with coil, wherein, during coil electricity, the magnetic field interaction produced with the magnetic links of rotor, can drive rotor to rotate.
According to the motor that embodiment of the present utility model provides, stator is wound with multiturn coil, during multiturn coil energising, can produce magnetic field, the magnetic field of this magnetic field and magnetic links 2 attracts each other, just rotor can be made to rotate, therefore, as long as change sense of current in coil, the polarity in the magnetic field that coil produces can just be changed, thus the magnetic field of stator and the magnetic field of rotor can be made to attract each other all the time, and then rotor just can be made to continue to rotate.
The embodiment of the utility model third aspect provides a kind of electric motor car (not shown), comprising: controller; And the motor of above-mentioned any one embodiment; Wherein, controller is for controlling the work of motor.
According to the electric motor car that embodiment of the present utility model provides, comprise the motor that above-described embodiment provides, therefore, the motor that embodiment of the present utility model provides has whole beneficial effects of the rotor that above-mentioned any one embodiment provides, in addition, also comprise controller in this electric motor car, this controller can be used for the size, direction etc. of the electric current of the coil controlled on motor stator, thus rotating speed, moment of torsion, the power of just adjustable motor.
Preferably, controller is vector controller.
According to the electric motor car that embodiment of the present utility model provides, controller is vector controller, and be preferably sinusoidal wave controller, because, sinusoidal wave controller can produce stable control signal, thus can improve motor run time stationarity, lower motor run time noise, and then can improve electric motor car combination property, promote Consumer's Experience.
Preferably, described controller is without hall controller.
According to the electric motor car that embodiment of the present utility model provides, the advantage that the power combining the rotor of above-described embodiment is large, noise is low etc., there is again the advantage without Hall element failure rate is low simultaneously, thus from many aspects improve electric motor car overall performance, and then improve Consumer's Experience.
In the description of this specification, term " connection ", " installation ", " fixing " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this specification, specific features, structure, material or feature that the description of term " embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
These are only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a rotor, for motor, is characterized in that, comprising:
Rotor core, described rotor core is arranged multiple magnet steel groove;
Magnetic links, is arranged in described magnet steel groove, multiple by N level, the alternatively distributed magnetic pole of S level to be formed on described rotor core;
Wherein, arbitrary described magnetic pole comprises at least one first magnetic pole and at least one second magnetic pole, and described first magnetic pole, described second magnetic pole are at least combined by two described magnetic links.
2. rotor according to claim 1, is characterized in that, the lateral wall of described rotor core by multiple circumferentially distribution and the arc surface of decentraction form, and the quantity of described arc surface is consistent with the quantity of described magnetic pole.
3. rotor according to claim 1 and 2, is characterized in that, described first magnetic pole, described second magnetic pole are by two described magnetic links compositions, and two described magnetic links all arrange forming V-shape on described rotor core;
Wherein, the first V-arrangement forming described first magnetic pole is positioned at the second V-arrangement forming described second magnetic pole, and described first V-arrangement is consistent with the opening direction of described second V-arrangement.
4. rotor according to claim 1 and 2, is characterized in that, described first magnetic pole, described second magnetic pole are by three described magnetic links compositions, and three described magnetic links are all arranged in U-shaped on described rotor core;
Wherein, the first U-shaped forming described first magnetic pole is positioned at the second U-shaped forming described second magnetic pole, and described first U-shaped is consistent with the opening direction of described second U-shaped.
5. rotor according to claim 2, is characterized in that,
The circular arc of described arc surface is sine curve circular arc.
6. rotor according to claim 1, is characterized in that,
Described magnet steel groove is rectangular channel, described magnetic links is rectangle magnetic links;
The length forming the described magnetic links of described first magnetic pole is less than the length of the described magnetic links forming described second magnetic pole.
7. a motor, is characterized in that, comprising:
Stator; And
Rotor according to any one of claim 1 to 6;
Wherein, described stator rotates for driving described rotor.
8. motor according to claim 7, is characterized in that, described stator is wound with coil, and wherein, the induced field produced during described coil electricity, the magnetic field interaction produced with the magnetic links of described rotor, can drive described rotor to rotate.
9. an electric motor car, is characterized in that, comprising:
Controller; And
Motor as claimed in claim 7 or 8;
Wherein, described controller is for controlling the work of described motor.
10. electric motor car according to claim 9, is characterized in that, described controller is vector controller and/or described controller is without hall controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673731.2U CN204886471U (en) | 2015-09-01 | 2015-09-01 | Rotor, motor and electric motor car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520673731.2U CN204886471U (en) | 2015-09-01 | 2015-09-01 | Rotor, motor and electric motor car |
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| CN204886471U true CN204886471U (en) | 2015-12-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846627A (en) * | 2016-03-24 | 2016-08-10 | 东南大学 | Rotor structure for improving permanent magnet motor power and torque density |
| CN107338961A (en) * | 2016-12-27 | 2017-11-10 | 浙江孚盾智能科技有限公司 | A kind of high frequency concrete vibration bar |
-
2015
- 2015-09-01 CN CN201520673731.2U patent/CN204886471U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846627A (en) * | 2016-03-24 | 2016-08-10 | 东南大学 | Rotor structure for improving permanent magnet motor power and torque density |
| CN107338961A (en) * | 2016-12-27 | 2017-11-10 | 浙江孚盾智能科技有限公司 | A kind of high frequency concrete vibration bar |
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