CN102624108B - Stator for axial clearance type motor and axial clearance type motor - Google Patents
Stator for axial clearance type motor and axial clearance type motor Download PDFInfo
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- CN102624108B CN102624108B CN201210066866.3A CN201210066866A CN102624108B CN 102624108 B CN102624108 B CN 102624108B CN 201210066866 A CN201210066866 A CN 201210066866A CN 102624108 B CN102624108 B CN 102624108B
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Abstract
The invention provides a stator for an axial clearance type motor and the axial clearance type motor. Stator teeth stator windings are symmetrically arranged on the two end faces of the stator to support the axial clearance type motor to adopt a dual-rotor mode which can make the stress of a rotating shaft balanced, so that improvement in the bearable maximum torque and rotating speed of the axial clearance type motor is facilitated. In addition, a stator slot formed on the stator replaces a collector ring and a cooling shell, so that the structure of the axial clearance type motor can be simplified. Moreover, clearance slots of the stator are equal in width along a radial direction, so that the utilization of air clearances is improved; and chambers are formed at the end part edges of the stator teeth of the stator, so that the dispersion of lines of magnetic force can be suppressed. Therefore, the specific power of the axial clearance type motor can be improved.
Description
Technical field
The present invention relates to motor technology, particularly a kind of rotor of axial gap electric motor, and apply a kind of axial gap electric motor of this stator.
Background technology
Axial gap electric motor is as the core drive parts of electric automobile, and its power performance plays vital effect to electric automobile.Wherein, specific power is a kind of index of the power performance that is used for weighing axial gap electric motor, and specific power equals the ratio of maximum power and the quality of axial gap electric motor.
But, prior art is often more paid close attention to the various factors of the power that directly has the greatest impact such as how improving radiating effect, poly-magnetic property, breakdown torque, and improve whereby the maximum power of axial gap electric motor, but meanwhile, but be difficult to prevent the structure complicated of axial gap electric motor, and cause thus the quality of end play motor to increase.
Therefore, prior art cannot really improve the specific power of end play motor effectively, and likely can further hinder due to the complicated of structure the raising of maximum power, and causes the raising of cost.
Summary of the invention
In view of this, the invention provides a kind of stator of axial gap electric motor, and apply a kind of axial gap electric motor of this stator.
The rotor of a kind of axial gap electric motor provided by the invention, described stator on the bearing of trend of the rotating shaft of described axial gap electric motor between two rotors of described axial gap electric motor;
Described stator has the stator yoke portion of a ring-type, and described stator yoke portion is provided with multiple stator tooths symmetrically towards the both ends of the surface of two described rotors respectively, and each described stator tooth is formed the stator winding of a correspondence by wire intertwist.
Preferably, the side face of described stator yoke portion is further formed with the stator slot of ring-type, and the both ends of the surface of described stator yoke portion are further formed with the wiring hole being communicated with described stator slot; And described electric wire is interspersed in multiple described wiring holes by described stator slot, be wound respectively corresponding described stator winding with stator tooth described in each.
More preferably, described in each, stator tooth is corresponding with a pair of described wiring hole of its place end face; Described electric wire is along the bearing of trend wiring of described stator slot, alternately from every pair of described wiring hole of different end faces passes described stator slot, and penetrate described stator slot from another, and described electric wire is positioned at part outside described stator slot, at this, described stator tooth corresponding to described wiring hole is wound to a described stator winding corresponding to stator tooth described in this in the position of wiring hole every pair described.
Preferably, each described stator tooth successively decreases from the inner side of stator yoke portion described in the lateral of described stator yoke portion in the circumferential width of the position in the radial direction of described stator yoke portion.
Preferably, the end of described stator tooth is formed with chamfering.
A kind of axial gap electric motor provided by the invention, comprises rotating shaft and can, around the rotor of described rotating shaft rotation, also comprise stator as above.
Preferably, described in each, rotor comprises:
Reel, it is fixedly connected with described rotating shaft;
The rotor frame of ring-type, it is fixedly connected with described reel;
The rotor yoke portion of ring-type, it is fixedly connected with described rotor frame;
Multiple main permanent magnets, multiple described main permanent magnets are arranged and are fixed on described rotor yoke portion along the circumferential direction of described rotor yoke portion;
Multiple secondary permanent magnets, multiple described secondary permanent magnets are located at respectively between every two adjacent described main permanent magnets, and are fixed on described rotor yoke portion;
Wherein, the pole orientation of multiple described main permanent magnets is parallel to the bearing of trend of described rotating shaft; The pole orientation of every two adjacent described main permanent magnets is contrary; Two magnetic poles of each described secondary permanent magnet are opposed with the magnetic pole homopolarity towards described stator one end of the described main permanent magnet of its both sides respectively;
And the described reel of two described rotors is fixedly connected with same described rotating shaft, and the pole orientation of the mutual opposed described main permanent magnet of two described rotors is contrary.
More preferably, each described main permanent magnet successively decreases from the inner side of rotor yoke portion described in the lateral of described rotor yoke portion in the circumferential width of the position in the radial direction of described rotor yoke portion.
More preferably, described rotor frame is made up of non magnetic material.
More preferably, described rotor yoke portion is that magnetic conductive material forms
As above visible, in the present invention two of the stator of axial gap electric motor end surface symmetrics be provided with stator tooth and stator winding, thereby can allow, in the both sides of this stator, rotor to be all set, support axial gap electric motor to adopt birotor mode.And, because birotor mode can improve breakdown torque and the rotating speed that motor can bear by the stress point of balance rotating axle, thereby can contribute to the raising of the maximum power of axial gap electric motor, thereby can improve the specific power of axial gap electric motor.
In the present invention, the stator of axial gap electric motor can also have stator slot, and this stator slot can be used in electric wire wiring and heat radiation, thereby installs for the collector ring of electric wire wiring and the cooled enclosure for dispelling the heat without stator again.And, because the structure of the stator without collector ring and cooled enclosure is simplified, thereby the quality of axial gap electric motor can be reduced, thereby the specific power of axial gap electric motor can be improved.In addition, designs simplification can also allow the volume of axial gap electric motor to reduce, and the designs simplification of axial gap electric motor can also reduce costs.
The end edge that the stator tooth of stator can also be set in the present invention is formed with chamfering, in order to suppress the dispersion of the magnetic line of force, like this, the further raising of the maximum power of axial gap electric motor can be contributed to, thereby the specific power of axial gap electric motor can be further improved.
Brief description of the drawings
Fig. 1 is the sectional arrangement drawing of the axial gap electric motor in the specific embodiment of the invention;
Fig. 2 is the decomposing schematic representation of the axial gap electric motor in the specific embodiment of the invention;
Fig. 3 is the three-dimensional view of the stator in the specific embodiment of the invention;
Fig. 4 is the end face direction view of the stator in the specific embodiment of the invention;
Fig. 5 is the side face direction view of the stator in the specific embodiment of the invention;
Fig. 6 is that A-A in Fig. 5 is to cutaway view;
Fig. 7 is the polarity distribution schematic diagram of the permanent magnet of the rotor in the specific embodiment of the invention;
Fig. 8 is the schematic diagram of the flux circuit of the rotor generation in the specific embodiment of the invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 1 is the sectional arrangement drawing of the axial gap electric motor in the specific embodiment of the invention.Fig. 2 is the decomposing schematic representation of the axial gap electric motor in the specific embodiment of the invention.
Refer to Fig. 1 and Fig. 2, the axial gap electric motor 1 in the specific embodiment of the invention comprises: a shell 10 (not shown in Figure 2), two bearings 20, a rotating shaft 30, a stator 40, two rotors 50.Wherein:
Shell 10 have relative two end faces and closed-loop around side face;
Two bearings 20 are located at respectively two end faces of shell 10;
Rotating shaft 30 is carried on two bearings 20;
Stator 40 is fixed in shell 10;
Rotor 50 can rotate around rotating shaft 30 in shell 10;
And stator 40 is on the bearing of trend of rotating shaft 30 between two rotors 50, that is, two rotors 50 lay respectively at the both sides of stator 40 on the bearing of trend of rotating shaft 30, thereby make axial gap electric motor 1 adopt birotor mode.
Fig. 3 is the three-dimensional view of the stator in the specific embodiment of the invention.Fig. 4 is the end face direction view of the stator in the specific embodiment of the invention.Fig. 5 is the side face direction view of the stator in the specific embodiment of the invention.Fig. 6 is that A-A in Fig. 5 is to cutaway view.
Refer to Fig. 1 and Fig. 2 while in conjunction with Fig. 3, Fig. 4, Fig. 5 and Fig. 6, stator 40 comprises:
The stator yoke portion 41 of one ring-type, two end face is respectively towards a rotor 50 of respective side that is positioned at stator 40;
Multiple stator tooths 42 (not shown in Figure 6), multiple stator tooths 42 are arranged on the both ends of the surface of stator yoke portion 41 symmetrically, and each stator tooth 42 can be formed by wire intertwist the stator winding (all having omitted stator winding in each view) of a correspondence.
In practical application, those skilled in the art can set arbitrarily the main pole configuration mode of the stator winding of multiple stator tooths 42 and correspondence according to actual needs.That is, based on the principle of revolving varying magnetic field, those skilled in the art can be according to the demand of different poles logarithm and the number of phases, and stator winding is set to three-phase, six phases, 12 equate, is no longer repeated herein.
Visible, due to two end surface symmetrics of the stator yoke portion 41 of stator 40 be provided with stator tooth 42 and stator winding, thereby can allow, in the both sides of this stator 40, rotor 50 to be all set, support axial gap electric motor to adopt birotor mode.Thereby, utilize the stress point that birotor mode can balance rotating axle 30, and improve breakdown torque with this, and then can contribute to the raising of the maximum power of axial gap electric motor 1.
And, each stator tooth 42 is in the circumferential width of the position in the radial direction of stator yoke portion 41, successively decrease in inner side from the lateral of stator yoke portion 41 stator yoke portion 41, preferably, the clearance groove forming between every two adjacent stator tooths 42 equates in the circumferential width of the position in the radial direction of stator yoke portion 41,, the clearance groove between every two adjacent stators teeth 42 is radially wide.Like this, can make stator winding more effectively be utilized at the air gap at clearance groove place, thereby can contribute to the further raising of the maximum power of axial gap electric motor 1.
In addition, stator tooth 42 comprises that base portion, the bottom of connecting stator yoke portion 41 connect the binding post of base portion and be positioned at the end on binding post top, and wherein, the end of stator tooth 42 can form chamfering.Like this, the dispersion of the magnetic line of force can be suppressed, to reduce flux leakage, thereby the further raising of the maximum power of axial gap electric motor can be contributed to.And the end of stator tooth 42 and the circumferential width of base portion and radical length all can be greater than binding post, like this, can prevent that without any accessory stator winding from coming off from the binding post of stator tooth 42.
Please again referring to Fig. 1 and Fig. 2 and simultaneously in conjunction with Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the side face of the stator yoke portion 41 of this stator 40 is further formed with the stator slot 43 (not shown in Figure 4) of ring-type, and the both ends of the surface of stator yoke portion 41 are further formed with the wiring hole 44 (not shown in Fig. 1 and Fig. 5) being communicated with stator slot 43.
Stator slot 43 and wiring hole 44 can be used for the wiring of electric wire, electric wire is interspersed in multiple wiring holes 44 incessantly by stator slot 43 can be wound respectively corresponding stator winding at each stator tooth 42, like this, just install again the collector ring for electric wire wiring without stator 40.
In the specific embodiment of the invention, the relative example that should be of a pair of wiring hole 44 with each stator tooth 42 with its place end face.Now, electric wire can be along the bearing of trend wiring of stator slot 43, and alternately from every butted line hole 44 of different end faces passes stator slot 43, and penetrate stator slot 43 from another, correspondingly, electric wire is positioned at part outside stator slot 43 and can be wound at a stator tooth 42 of these butted line hole 44 correspondences a stator winding of these stator tooth 42 correspondences in the position in every butted line hole 44.
In Fig. 3, two stator tooths 42 are expressed as to 42-1 and 42-2 according to the interspersed order of electric wire, a pair of wiring hole 44 corresponding stator tooth 42-1 is expressed as to 44-1a, 44-1b according to the interspersed order of electric wire, a pair of wiring hole 44 corresponding stator tooth 42-2 is expressed as to 44-2a, 44-b according to the interspersed order of electric wire.In Fig. 3, first insert to the electric wire of stator slot 43 and can first pass stator slot 43 from wiring hole 44-1a, then after stator tooth 42-1 is wound stator winding, wears and be back in stator slot 43 from wiring hole 44-1b again; After this, then pass stator slot 43 from wiring hole 44-2a, and wear and be back in stator slot 43 from wiring hole 44-2b after stator tooth 42-2 is wound stator winding; By that analogy, electric wire can be interspersed in incessantly each wiring hole 44 and be wound corresponding stator winding at each stator tooth 42 along the bearing of trend of stator slot 43.
And stator slot 43 also can be used for heat radiation, like this, just install again the cooled enclosure for dispelling the heat without stator 40.Certainly, can also within stator yoke portion 41, lay cooling water pipe in actual applications, for example, cooling water pipe can star-like in the form of a ring distribution, like this, and also without the cooled enclosure of stator 40 installings for dispelling the heat.
Visible, because stator slot 43 can make stator 40 without installing for the collector ring of electric wire wiring and the cooled enclosure for dispelling the heat, thereby can make the structure of stator 40 be simplified again, thereby can reduce the quality of axial gap electric motor 1.
As mentioned above, because the structure of stator 40 can contribute to improve the maximum power of axial gap electric motor 1, and can reduce the quality of axial gap electric motor 1, thereby can improve the specific power of axial gap electric motor 1.
And the designs simplification of stator 40 can contribute to the raising of the maximum power of axial gap electric motor 1, and can not hinder the raising of maximum power.And the designs simplification of stator 40 can also reduce the cost of axial gap electric motor 1.
Fig. 7 is the polarity distribution schematic diagram of the permanent magnet of the rotor in the specific embodiment of the invention.Fig. 8 is the schematic diagram of the flux circuit of the rotor generation in the specific embodiment of the invention.
Refer to Fig. 1 and Fig. 2 while in conjunction with Fig. 7 and Fig. 8, rotor 50 comprises:
Reel 51, it is fixedly connected with rotating shaft 30;
The rotor frame 52 of ring-type, it is fixedly connected with reel 51;
The rotor yoke portion 53 of ring-type, it is fixedly connected with rotor frame 52;
Multiple main permanent magnets 54, multiple main permanent magnets 54 are arranged along the circumferential direction of rotor yoke portion 53, and are fixed on rotor yoke portion 53;
Multiple secondary permanent magnets 55 (not shown in Figure 1), multiple secondary permanent magnets 55 are located at respectively between every two adjacent main permanent magnets 54, and are fixed on rotor yoke portion 53.
Wherein:
The pole orientation of the multiple main permanent magnet 54 in each rotor 50 is parallel to the bearing of trend of rotating shaft 30;
The pole orientation of every two the adjacent main permanent magnets 54 in each rotor 50 is contrary; ; in the orientation of the circumferential direction along rotor yoke portion 53; the magnetic pole towards stator 40 one end of multiple main permanent magnets 54 is alternately N utmost point 54a and S utmost point 54b (polarity of the magnetic pole towards stator 40 one end of multiple main permanent magnets 54 is only indicated in Fig. 7 and Fig. 8, and the polarity of the magnetic pole of 40 other ends of stator dorsad of multiple main permanent magnets 54 is only indicated in Fig. 8);
Two magnetic poles of the each secondary permanent magnet 55 in each rotor 50 are opposed with the magnetic pole homopolarity towards stator 40 one end of the main permanent magnet 54 of its both sides respectively; ; the N utmost point 55a of each secondary permanent magnet 55 towards the adjacent main permanent magnet 54 of a side; its magnetic pole towards stator 40 one end is N utmost point 54a; the S utmost point 55b of each secondary permanent magnet 55 towards the adjacent main permanent magnet 54 of opposite side, its magnetic pole towards stator 40 one end is S utmost point 54b (only being indicated in Fig. 7 and Fig. 8).
Based on said structure, setting lays respectively at the pole orientation of opposed main permanent magnet 54 of two rotors 50 of stator 40 both sides when contrary,, certain main permanent magnet 54 in a rotor 50 is N utmost point 54a towards the magnetic pole of stator 40 one end, in another rotor 50, opposed main permanent magnet 54 is just S utmost point 54b towards the magnetic pole of stator 40 one end, certain main permanent magnet 54 in a rotor 50 is S utmost point 54b towards the magnetic pole of stator 40 one end, and in another rotor 50, opposed main permanent magnet 54 is just N utmost point 54a towards the magnetic pole of stator 40 one end.
Correspondingly, the rotor 50 that lays respectively at stator 40 both sides can utilize opposite main permanent magnet 54 to be created on the bearing of trend of rotating shaft 30 and come and go respectively the main flux that runs through stator 40, wherein, so-called " come and go and run through " refers to that the rotor 50 that is positioned at stator 40 1 sides can produce the main flux that runs through stator 40 from this side towards opposite side, and the rotor 50 that is positioned at stator 40 opposite sides also can produce the main flux that runs through stator 40 from opposite side towards an above-mentioned side, , the rotor 50 that is positioned at stator 40 each side all can produce from the main permanent magnet 54 of this rotor 50 and run through stator 40 to the axial magnetic flux of the opposed main permanent magnet 54 of opposite side rotor 50 towards the S utmost point 54b of stator 40 one end towards the N utmost point 54a of stator 40 one end.
Meanwhile, the rotor 50 that is positioned at stator 40 each side can also utilize the magnetic pole of multiple main permanent magnets 54 oppositely to replace, and can be created in the circumferential magnetic flux in rotor yoke portion 53 circumferential direction between the other end of the stator dorsad 40 of adjacent main permanent magnet 54.
The circumferential magnetic flux producing due to the air gap between stator 40 one end of adjacent main permanent magnet 54 can make the magnetic flux coming and going through stator 40 reduce, , the circumferential magnetic flux between stator 40 one end of adjacent main permanent magnet 54 can cause " magnetic leakage ", therefore, secondary permanent magnet 55 main permanent magnet 54 adjacent with both sides is set opposed towards the magnetic pole homopolarity of stator 40 one end, what can stop adjacent main permanent magnet 54 produces circumferential magnetic flux between stator 40 one end, , the circumferential magnetic flux between stator 40 one end of adjacent main permanent magnet 54 is proofreaied and correct to the axial magnetic flux that runs through stator 40 for coming and going, thereby can reduce magnetic leakage,
And circumferential magnetic flux between the other end of the stator dorsad 40 of adjacent main permanent magnet 54 can affect the size of magnetic resistance, , the circumferential magnetic flux between stator 40 one end of adjacent main permanent magnet 54 is larger, magnetic resistance is just less, therefore, the opposed secondary permanent magnet 55 of the magnetic pole homopolarity of main permanent magnet 54 adjacent with both sides towards stator 40 one end, its also main permanent magnet 54 adjacent with both sides the magnetic pole heteropole of the other end of stator 40 is opposed dorsad, , contribute to produce circumferential magnetic flux between the other end of stator dorsad 40 of adjacent main permanent magnet 54, thereby can reduce magnetic resistance,
And the circumferential magnetic flux between the other end of the stator dorsad 40 of adjacent main permanent magnet 54 can be connected for flux circuit coming and going respectively the axial magnetic flux that runs through stator 40; This flux circuit represents in the mode of arrow and is marked with magnetic pole, and in Fig. 8, omitted stator slot 43 and wiring hole 44 in Fig. 8.
Visible, rotor 50 can be arranged on the both sides of a stator 40 in couples, and utilize relative to one another the orthogonal main permanent magnet 54 of flow direction and secondary permanent magnet 55 to produce the round flux loop that runs through stator 40, thereby can utilize the magnetic flux lens effect of flux loop to support axial gap electric motor 1 to adopt birotor mode.Thereby, because magnetic flux lens effect can increase effective flux, birotor mode can improve breakdown torque by the stress point of balance rotating axle 30, thereby contribute to the raising of the maximum power of axial gap electric motor.
And each main permanent magnet 54, in the circumferential width of the position in the radial direction of rotor yoke portion 53, can successively decrease from the inner side of the lateral of rotor yoke portion 53 rotor yoke portion 53.Like this, can make main permanent magnet 54 and secondary permanent magnet 55 arrange in limited space more tight, to carry high-magnetodensity, thereby contribute to the further raising of the maximum power of axial gap electric motor.
In addition, rotor frame 52 can be made up of non magnetic material, and like this, the vortex flow loss producing can reduce energising time also reduces the temperature rise causing thus, thereby contributes to the further raising of the maximum power of axial gap electric motor.And rotor yoke portion 53 can be made up of magnetic conductive material, like this, demagnetize and the magnetic conductance that can suppress main permanent magnet reduce, thereby contribute to the further raising of the maximum power of axial gap electric motor.
Further, the specific embodiment of the invention also provides the assembling mode that can make rotor 50 simple in structure for each parts of rotor 50, specific as follows:
Rotor frame 52 can comprise ring-type housing 52a and ring-type inside casing 52b;
Ring-type inside casing 52a is sheathed on the outward flange of described reel, so that rotor frame 52 can be sheathed on the outward flange of reel 51, thereby can realize and being fixedly connected with of reel 51 without any connector; In practical application, ring-type housing 52b can be connected with ring-type inside casing 52a, and one-body molded with reel 51;
Ring-type housing 52b is looped around outside the outer peripheral face of ring-type inside casing 52a, and and the outer peripheral face of ring-type inside casing 52a between leave the gap that can embed for rotor yoke portion 53, can be embedded in rotor frame 52 with rotor yoke portion 53, thereby can realize and being fixedly connected with of rotor frame 52 without any connector;
And, the inner peripheral surface concave-convex surface of the outer peripheral face of the rotor yoke portion 53 being in contact with one another and ring-type housing 52b, and/or, the outer peripheral face concave-convex surface of the inner peripheral surface of the rotor yoke portion 53 being in contact with one another and ring-type inside casing 52a, like this, can make between rotor yoke portion 53 and rotor frame 52 be fixedly connected with more firm;
In addition, rotor yoke portion 53 can be formed with the main groove 53a (only shown in Figure 7) for accommodating main permanent magnet 54, and for accommodating the secondary groove 53b (only shown in Figure 7) of secondary permanent magnet 55, so that main permanent magnet 54 and secondary permanent magnet 55 can be embedded in rotor yoke portion 53, thereby can realize main permanent magnet 54 and secondary permanent magnet 55 being fixedly connected with in rotor yoke portion 53 without any connector.Certainly, main permanent magnet 54 and secondary permanent magnet 55 are not must be embedded in rotor yoke portion 53, but can also be positioned at the end face towards stator 40 of rotor yoke portion 53, or adopt other modes to be fixed on rotor yoke portion 53.
As mentioned above, because the structure of rotor 50 can contribute to improve the maximum power of axial gap electric motor 1, and can reduce the quality of axial gap electric motor 1, thereby can improve the specific power of axial gap electric motor 1.
It should be noted that, the rotor 50 in the specific embodiment of the invention, stator 40 also can coordinate with the rotor of other structures that can support birotor mode; Similarly, the stator 40 in the specific embodiment of the invention, rotor 50 also can coordinate with the stator of other structures that can support birotor mode.
That is to say, axial gap electric motor 1 can only be selected the stator 40 in the specific embodiment of the invention, and the rotor that is aided with other structures matches, or, axial gap electric motor also can only be selected the rotor 50 in the specific embodiment of the invention, and the stator that is aided with other structures matches.Now, still can improve specific power.
In addition, in actual applications:
Axial gap electric motor 1 in the specific embodiment of the invention is in the time of the power part as automobile, and the output shaft that rotating shaft 30 can be used as axial gap electric motor 1 is connected with the power shaft of speed changer or decelerator;
And according to the axial gap electric motor 1 in the specific embodiment of the invention, in the time of car deceleration, axial gap electric motor 50 can serve as generator and realize generator function, produces so-called regenerative braking power, is electric energy by the recover kinetic energy of vehicle body;
Certainly, because the axial gap electric motor 1 in the specific embodiment of the invention has higher specific power, thereby except can serving as the power part of automobile, can also be applicable to the every field such as factory, medical treatment, metallurgy, aviation.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (9)
1. a stator for axial gap electric motor, is characterized in that, described stator on the bearing of trend of the rotating shaft of described axial gap electric motor between two rotors of described axial gap electric motor;
Described stator has the stator yoke portion of a ring-type, and described stator yoke portion is provided with multiple stator tooths symmetrically towards the both ends of the surface of two described rotors respectively, and each described stator tooth is formed the stator winding of a correspondence by wire intertwist;
The side face of described stator yoke portion is further formed with the stator slot of ring-type, and the both ends of the surface of described stator yoke portion are further formed with the wiring hole being communicated with described stator slot; And described electric wire is interspersed in multiple described wiring holes by described stator slot, be wound respectively corresponding described stator winding with stator tooth described in each.
2. stator according to claim 1, is characterized in that, described in each, stator tooth is corresponding with a pair of described wiring hole of its place end face; Described electric wire is along the bearing of trend wiring of described stator slot, alternately from every pair of described wiring hole of different end faces passes described stator slot, and penetrate described stator slot from another, and described electric wire is positioned at part outside described stator slot, at this, described stator tooth corresponding to described wiring hole is wound to a described stator winding corresponding to stator tooth described in this in the position of wiring hole every pair described.
3. stator according to claim 1, is characterized in that, each described stator tooth successively decreases from the inner side of stator yoke portion described in the lateral of described stator yoke portion in the circumferential width of the position in the radial direction of described stator yoke portion.
4. stator according to claim 1, is characterized in that, the end of described stator tooth is formed with chamfering.
5. an axial gap electric motor, comprises rotating shaft, it is characterized in that, also comprising can be around two rotor of described rotating shaft rotation, and a stator as described in any one in claim 1 to 4.
6. axial gap electric motor according to claim 5, is characterized in that, described in each, rotor comprises:
Reel, it is fixedly connected with described rotating shaft;
The rotor frame of ring-type, it is fixedly connected with described reel;
The rotor yoke portion of ring-type, it is fixedly connected with described rotor frame;
Multiple main permanent magnets, multiple described main permanent magnets are arranged along the circumferential direction of described rotor yoke portion, and are fixed on described rotor yoke portion;
Multiple secondary permanent magnets, multiple described secondary permanent magnets are located at respectively between every two adjacent described main permanent magnets, and are fixed on described rotor yoke portion;
Wherein, the pole orientation of multiple described main permanent magnets is parallel to the bearing of trend of described rotating shaft; The pole orientation of every two adjacent described main permanent magnets is contrary; Two magnetic poles of each described secondary permanent magnet are opposed with the magnetic pole homopolarity towards described stator one end of the described main permanent magnet of its both sides respectively;
And the described reel of two described rotors is fixedly connected with same described rotating shaft, and the pole orientation of the mutual opposed described main permanent magnet of two described rotors is contrary.
7. axial gap electric motor according to claim 6, it is characterized in that, each described main permanent magnet successively decreases from the inner side of rotor yoke portion described in the lateral of described rotor yoke portion in the circumferential width of the position in the radial direction of described rotor yoke portion.
8. axial gap electric motor according to claim 6, is characterized in that, described rotor frame is made up of non magnetic material.
9. axial gap electric motor according to claim 6, is characterized in that, described rotor yoke portion is that magnetic conductive material forms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210066866.3A CN102624108B (en) | 2012-03-14 | 2012-03-14 | Stator for axial clearance type motor and axial clearance type motor |
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| CN201210066866.3A CN102624108B (en) | 2012-03-14 | 2012-03-14 | Stator for axial clearance type motor and axial clearance type motor |
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| CN102624108B true CN102624108B (en) | 2014-07-30 |
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| US11139707B2 (en) | 2015-08-11 | 2021-10-05 | Genesis Robotics And Motion Technologies Canada, Ulc | Axial gap electric machine with permanent magnets arranged between posts |
| US9742225B2 (en) | 2015-08-11 | 2017-08-22 | Genesis Robotics Llp | Electric machine |
| US11043885B2 (en) | 2016-07-15 | 2021-06-22 | Genesis Robotics And Motion Technologies Canada, Ulc | Rotary actuator |
| CN109245340B (en) * | 2018-11-28 | 2024-02-23 | 浙江盘毂动力科技有限公司 | Stator core processing method |
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| WO2018010032A1 (en) * | 2016-07-15 | 2018-01-18 | Genesis Robotics Llp | Rotary actuator |
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| CN102624108A (en) | 2012-08-01 |
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Effective date of registration: 20190715 Address after: 450016 Zhengzhou economic and Technological Development Zone, Henan Road, No. 1689 Patentee after: Hippocampus Motor Co., Ltd. Address before: 201201 Shanghai, East long avenue, No. 6111, Pudong New Area Road intersection Co-patentee before: HAIMA AUTOMOBILE GROUP CO., LTD. Patentee before: Shanghai Haima Automobile Co., Ltd. |
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Effective date of registration: 20220107 Address after: 450000 No. 1689, hanghai East Road, Zhengzhou Economic and Technological Development Zone, Zhengzhou, Henan Province Patentee after: HAIMA MOTOR Corp. Patentee after: HAIMA NEW ENERGY VEHICLE Co.,Ltd. Patentee after: Hainan Haima Automobile Co.,Ltd. Address before: 450016 Haihai East Road 1689, Zhengzhou Economic and Technological Development Zone, Henan Province Patentee before: HAIMA MOTOR Corp. |