CN102624108A - 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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- CN102624108A CN102624108A CN2012100668663A CN201210066866A CN102624108A CN 102624108 A CN102624108 A CN 102624108A CN 2012100668663 A CN2012100668663 A CN 2012100668663A CN 201210066866 A CN201210066866 A CN 201210066866A CN 102624108 A CN102624108 A CN 102624108A
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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 a kind of axial gap electric motor of using this stator.
Background technology
Axial gap electric motor is as the core drive parts of electric automobile, and its power performance plays crucial effects to electric automobile.Wherein, specific power is a kind of index that is used for weighing the power performance of axial gap electric motor, and specific power equals the ratio of the maximum power and the quality of axial gap electric motor.
Yet; Prior art often more pay close attention to how to improve radiating effect, gather magnetic property, the various factors of the power that directly has the greatest impact such as breakdown torque; And improve the maximum power of axial gap electric motor whereby; But meanwhile, but be difficult to prevent the structure complicated of axial gap electric motor, and cause the quality of end play property motor to increase thus.
Therefore, prior art can't really improve the specific power of end play property motor effectively, and might further hinder the raising of maximum power owing to the complicated of structure, and causes the raising of cost.
Summary of the invention
In view of this, the present invention provides a kind of stator of axial gap electric motor, and a kind of axial gap electric motor of using this stator.
The rotor of a kind of axial gap electric motor provided by the invention, said stator is on the bearing of trend of the rotating shaft of said axial gap electric motor between two rotors at said axial gap electric motor;
Said stator has the stator yoke portion of a ring-type, and said stator yoke portion is provided with a plurality of stator tooths towards the both ends of the surface of two said rotors respectively symmetrically, and each said stator tooth is twined the stator winding that forms a correspondence by electric wire.
Preferably, the side face of said stator yoke portion further is formed with the stator slot of ring-type, and the both ends of the surface of said stator yoke portion further are formed with the wiring hole that is communicated with said stator slot; And said electric wire is interspersed in a plurality of said wiring holes through said stator slot, forms corresponding said stator winding to twine respectively at each said stator tooth.
More preferably, each said stator tooth is corresponding with a pair of said wiring hole of its place end face; Said electric wire is along the bearing of trend wiring of said stator slot; Alternately from every pair of said wiring hole of different end faces passes said stator slot; And penetrate said stator slot from another; And the part that said electric wire is positioned in the position of every pair of said wiring hole outside the said stator slot is twined a said stator winding that forms this said stator tooth correspondence at this to a corresponding said stator tooth of said wiring hole.
Preferably, each said stator tooth successively decreases from the inboard of the lateral said stator yoke portion of said stator yoke portion in the circumferential width of the position in the radial direction of said stator yoke portion.
Preferably, the end of said stator tooth is formed with chamfering.
A kind of axial gap electric motor provided by the invention comprises rotating shaft and can also comprise aforesaid stator around said rotating shaft rotor rotated.
Preferably, each said rotor comprises:
Reel, it is fixedly connected with said rotating shaft;
The rotor frame of ring-type, it is fixedly connected with said reel;
The rotor yoke portion of ring-type, it is fixedly connected with said rotor frame;
A plurality of main permanent magnets, a plurality of said main permanent magnets are arranged and are fixed in said rotor yoke portion along the circumferential direction of said rotor yoke portion;
A plurality of secondary permanent magnets, a plurality of said secondary permanent magnets are located at respectively between per two adjacent said main permanent magnets, and are fixed in said rotor yoke portion;
Wherein, the pole orientation of a plurality of said main permanent magnets is parallel to the bearing of trend of said rotating shaft; The pole orientation of per two adjacent said main permanent magnets is opposite; Two magnetic poles of each said secondary permanent magnet are opposed with the magnetic pole homopolarity towards said stator one end of the said main permanent magnet of its both sides respectively;
And the said reel of two said rotors is fixedly connected with same said rotating shaft, and the pole orientation of the mutual opposed said main permanent magnet of two said rotors is opposite.
More preferably, each said main permanent magnet successively decreases from the inboard of the lateral said rotor yoke portion of said rotor yoke portion in the circumferential width of the position in the radial direction of said rotor yoke portion.
More preferably, said rotor frame is made up of non magnetic material.
More preferably, said rotor yoke portion is that magnetic conductive material constitutes
As above visible, among the present invention two of the stator of axial gap electric motor end face symmetries be provided with stator tooth and stator winding, thereby can allow all rotor can be set in the both sides of this stator, promptly support axial gap electric motor to adopt the birotor mode.And; Because the birotor mode can improve breakdown torque and the rotating speed that motor can bear through the stress point of balance rotating axle; Thereby can help the raising of the maximum power of axial gap electric motor, thereby can improve the specific power of axial gap electric motor.
The stator of axial gap electric motor can also have stator slot among the present invention, and this stator slot can be used in electric wire wiring and heat radiation, thereby need not stator and install collector ring that is used for the electric wire wiring and the cooled enclosure that is used to dispel the heat again.And, be simplified owing to need not the structure of the stator of collector ring and cooled enclosure, thereby can reduce the quality of axial gap electric motor, thereby can improve the specific power of axial gap electric motor.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 cost.
The end edge that the stator tooth of stator can also be set among 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 helped, thereby the specific power of axial gap electric motor can be further improved.
Description of 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 among 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 sketch map of the flux circuit of the rotor generation in the specific embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to further explain of the present invention.
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.
See also 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 Fig. 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 two end faces of shell 10 respectively;
Rotating shaft 30 is carried on two bearings 20;
And, stator 40 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 the 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 among Fig. 5 is to cutaway view.
See also Fig. 1 and Fig. 2 and combine Fig. 3, Fig. 4, Fig. 5 and Fig. 6 simultaneously, stator 40 comprises:
The stator yoke portion 41 of one ring-type, its two end faces are respectively towards a rotor 50 of the respective side that is positioned at stator 40;
A plurality of stator tooths 42 (not shown in Fig. 6), a plurality of stator tooths 42 are arranged on the both ends of the surface of stator yoke portion 41 symmetrically, and each stator tooth 42 can twine the stator winding (all having omitted stator winding in each view) that forms a correspondence by electric wire.
In the practical application, those skilled in the art can set the main pole configuration mode of the stator winding of a plurality of stator tooths 42 and correspondence according to actual needs arbitrarily.That is, based on the principle of revolving varying magnetic field, those skilled in the art can be according to the demand of the different poles logarithm and the number of phases, and stator winding is set to three-phase, six phase, 12 equates that this paper no longer gives unnecessary details.
Thus it is clear that,, promptly support axial gap electric motor to adopt the birotor mode because two end faces of the stator yoke portion 41 of stator 40 are provided with stator tooth 42 and stator winding symmetrically, thereby can allow all rotor 50 can be set in the both sides of this stator 40.Thereby, utilize the stress point that the birotor mode can balance rotating axle 30, and improve breakdown torque, and then can help the raising of the maximum power of axial gap electric motor 1 with this.
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 the inboard of stator yoke portion 41 from the lateral of stator yoke portion 41, preferred, and the clearance groove that forms between per two adjacent stator tooths 42 equates in the circumferential width of the position in the radial direction of stator yoke portion 41; That is, the clearance groove between per two adjacent stators teeth 42 is radially wide.Like this, stator winding is more effectively utilized at the air gap at clearance groove place, thereby can help the further raising of the maximum power of axial gap electric motor 1.
In addition, stator tooth 42 comprises that the base portion, the bottom that connect stator yoke portion 41 connect the binding post of base portion and the end that is positioned at the 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, reducing flux leakage, thereby the further raising of the maximum power of axial gap electric motor can be helped.And the end of stator tooth 42 and the circumferential width of base portion and radical length all can like this, need not any accessory and can prevent that stator winding from coming off from the binding post of stator tooth 42 greater than binding post.
Please also combine Fig. 3, Fig. 4, Fig. 5 and Fig. 6 simultaneously referring to Fig. 1 and Fig. 2 again; The side face of the stator yoke portion 41 of this stator 40 further is formed with the stator slot 43 (not shown in Fig. 4) of ring-type; And the both ends of the surface of stator yoke portion 41 further are formed with the wiring hole 44 (not shown in Fig. 1 and Fig. 5) that is communicated with stator slot 43.
In the specific embodiment of the invention, should be example relatively with a pair of wiring hole 44 of each stator tooth 42 and its place end face.At this moment; 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 the stator slot 43 and can twines at these butted line hole 44 corresponding stator tooths 42 and form a corresponding stator winding of this stator tooth 42 in the position in every butted line hole 44.
Among Fig. 3 two stator tooths 42 are expressed as 42-1 and 42-2 respectively according to the interspersed order of electric wire; The a pair of wiring hole 44 that stator tooth 42-1 is corresponding is expressed as 44-1a, 44-1b respectively according to the interspersed order of electric wire, and a pair of wiring hole 44 that stator tooth 42-2 is corresponding is expressed as 44-2a, 44-b respectively according to the interspersed order of electric wire.In Fig. 3, insert earlier to the electric wire of stator slot 43 and can pass stator slot 43 from wiring hole 44-1a earlier, twine to wear from wiring hole 44-1b again after forming stator winding at stator tooth 42-1 then and be back in the stator slot 43; After this, pass stator slot 43 from wiring hole 44-2a again, and after stator tooth 42-2 twine to form stator winding, wear and be back in the stator slot 43 from wiring hole 44-2b; By that analogy, electric wire can be interspersed in each wiring hole 44 along the bearing of trend of stator slot 43 incessantly and twine the stator winding that forms correspondence at each stator tooth 42.
And stator slot 43 also can be used for heat radiation, like this, just need not stator 40 and installs the cooled enclosure that is used to dispel the heat again.Certainly, in practical application, can also within stator yoke portion 41, lay cooling water pipe, for example, cooling water pipe can star-like in the form of a ring distribution, like this, also need not the cooled enclosure that stator 40 installings are used to dispel the heat.
Thus it is clear that, be used for the collector ring of electric wire wiring and the cooled enclosure that is used to dispel the heat because stator slot 43 can make stator 40 need not to install again, thereby can make the structure of stator 40 be able to simplify, thereby can reduce the quality of axial gap electric motor 1.
As stated, because the structure of stator 40 can help 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 help 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 sketch map of the flux circuit of the rotor generation in the specific embodiment of the invention.
See also Fig. 1 and Fig. 2 and combine Fig. 7 and Fig. 8 simultaneously, rotor 50 comprises:
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;
A plurality of main permanent magnets 54, a plurality of main permanent magnets 54 are arranged along the circumferential direction of rotor yoke portion 53, and are fixed in rotor yoke portion 53;
A plurality of secondary permanent magnets 55 (not shown in Fig. 1), a plurality of secondary permanent magnets 55 are located at respectively between per two adjacent main permanent magnets 54, and are fixed in rotor yoke portion 53.
Wherein:
The pole orientation of a plurality of main permanent magnet 54 in each rotor 50 is parallel to the bearing of trend of rotating shaft 30;
The pole orientation of per two the adjacent main permanent magnets 54 in each rotor 50 is opposite; Promptly; Along in the orientation of the circumferential direction of rotor yoke portion 53; A plurality of main permanent magnets 54 alternately be N utmost point 54a and S utmost point 54b (polarity towards the magnetic pole of stator 40 1 ends of a plurality of main permanent magnets 54 only indicates, and the polarity of the magnetic pole of 40 other ends of stator dorsad of a plurality of main permanent magnets 54 then only indicates) towards the magnetic pole of stator 40 1 ends in Fig. 7 and Fig. 8 in Fig. 8;
Two magnetic poles of each the secondary permanent magnet 55 in each rotor 50 are opposed with the magnetic pole homopolarity towards stator 40 1 ends of the main permanent magnet 54 of its both sides respectively; Promptly; 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 1 ends 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 1 ends is S utmost point 54b (only in Fig. 7 and Fig. 8, indicating).
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 opposite; Promptly; Certain main permanent magnet 54 in rotor 50 is N utmost point 54a towards the magnetic pole of stator 40 1 ends; Opposed main permanent magnet 54 be S utmost point 54b just towards the magnetic pole of stator 40 1 ends in another rotor 50, and certain the main permanent magnet 54 in rotor 50 is S utmost point 54b towards the magnetic pole of stator 40 1 ends, and opposed main permanent magnet 54 is N utmost point 54a just towards the magnetic pole of stator 40 1 ends in another rotor 50.
Correspondingly; The rotor 50 that lays respectively at stator 40 both sides can utilize mutually opposed main permanent magnet 54 to be created on the bearing of trend of rotating shaft 30 and come and go the main flux that runs through stator 40 respectively; Wherein, So-called " come and go run through " is meant that the rotor 50 that is positioned at stator 40 1 sides can produce from this side and also can produces the main flux that runs through stator 40 from opposite side towards an above-mentioned side towards the rotor 50 that opposite side runs through the main flux of stator 40 and is positioned at stator 40 opposite sides; That is, be positioned at the main permanent magnet 54 that the rotor 50 of stator 40 each side all can produce from this rotor 50 and run through the axial magnetic flux of stator 40 to opposite side rotor 50 opposed main permanent magnets 54 towards the S utmost point 54b of stator 40 1 ends towards the N utmost point 54a of stator 40 1 ends.
Meanwhile, the rotor 50 that is positioned at stator 40 each side can also utilize the magnetic pole of a plurality of main permanent magnets 54 oppositely to replace, and can be created in the circumferential magnetic flux on rotor yoke portion 53 circumferential direction between the other end of the stator dorsad 40 of adjacent main permanent magnet 54.
Because the circumferential magnetic flux that air gap produced between stator 40 1 ends of adjacent main permanent magnet 54 can make the magnetic flux that comes and goes through stator 40 reduce; Promptly; The circumferential magnetic flux between stator 40 1 ends of adjacent main permanent magnet 54 can cause " magnetic leakage ", and therefore, it is opposed towards the magnetic pole homopolarity of stator 40 1 ends that secondary permanent magnet 55 adjacent main permanent magnets 54 with both sides are set; The circumferential magnetic flux of generation between stator 40 1 ends that can stop adjacent main permanent magnet 54; That is, the circumferential magnetic flux between stator 40 1 ends of adjacent main permanent magnet 54 is proofreaied and correct the axial magnetic flux that runs through stator 40 for coming and going, thereby can reduce magnetic leakage;
And the circumferential magnetic flux between the other end of the stator dorsad 40 of adjacent main permanent magnet 54 can influence the size of magnetic resistance; That is, the circumferential magnetic flux between stator 40 1 ends of adjacent main permanent magnet 54 is big more, and magnetic resistance is just more little; Therefore; Adjacent main permanent magnet 54 with both sides is towards the opposed secondary permanent magnet 55 of the magnetic pole homopolarity of stator 40 1 ends, and its also adjacent with both sides main permanent magnet 54 magnetic pole heteropole of the other end of stator 40 dorsad is opposed, promptly; Help 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 flux circuit with coming and going the axial magnetic flux linking that runs through stator 40 respectively; This flux circuit is represented with the mode of arrow in Fig. 8 and is marked with magnetic pole, and omitted stator slot 43 and wiring hole 44 among Fig. 8.
It is thus clear that; Rotor 50 can be arranged on the both sides of a stator 40 in couples; And utilize the main permanent magnet 54 of flow direction quadrature and secondary permanent magnet 55 to produce the round flux loop that runs through stator 40 relative to one another, thereby can utilize the magnetic flux lens effect of flux loop to support axial gap electric motor 1 to adopt the birotor mode.Thereby,, thereby help the raising of the maximum power of axial gap electric motor because the magnetic flux lens effect can increase effective flux, the birotor mode can improve breakdown torque through the stress point of balance rotating axle 30.
And each main permanent magnet 54 is in the circumferential width of the position in the radial direction of rotor yoke portion 53, can be from the lateral of rotor yoke portion 53 inboard of rotor yoke portion 53 successively decrease.Like this, it is more tight that main permanent magnet 54 and secondary permanent magnet 55 are arranged in limited space, putting forward high-magnetodensity property, thereby helps 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 that produces in the time of can reducing energising also reduces the temperature that causes thus and rises, thereby helps 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, and like this, the demagnetize and the magnetic conductance that can suppress main permanent magnet reduce, thereby help the further raising of the maximum power of axial gap electric motor.
Further, the specific embodiment of the invention also provides the fit that can make rotor 50 simple in structure for each parts of rotor 50, and is specific as follows:
Ring-type inside casing 52a is sheathed on the outward flange of said reel, so that rotor frame 52 can be sheathed on the outward flange of reel 51, can realize and being fixedly connected of reel 51 thereby need not any connector; In the practical application, ring-type housing 52b can link to each other 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 supply rotor yoke portion 53 to embed; Can be embedded in the rotor frame 52 with rotor yoke portion 53, can realize and being fixedly connected of rotor frame 52 thereby need not any connector;
And; The inner peripheral surface concave-convex surface of the outer peripheral face of the rotor yoke portion 53 that is 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 that is in contact with one another and ring-type inside casing 52a, like this, can make between rotor yoke portion 53 and the rotor frame 52 be fixedly connected more firm;
In addition; Rotor yoke portion 53 can be formed with the main groove 53a (only shown in Fig. 7) that is used to accommodate main permanent magnet 54; And the secondary groove 53b (only shown in Fig. 7) that is used to accommodate secondary permanent magnet 55; So that main permanent magnet 54 can be embedded in the rotor yoke portion 53 with secondary permanent magnet 55, can realize main permanent magnet 54 and secondary permanent magnet 55 being fixedly connected in rotor yoke portion 53 thereby need not any connector.Certainly, main permanent magnet 54 is not must be embedded in the rotor yoke portion 53 with secondary permanent magnet 55, but can also be positioned at the end face towards stator 40 of rotor yoke portion 53, or adopts other modes to be fixed in rotor yoke portion 53.
As stated, because the structure of rotor 50 can help 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.
Need to prove that the rotor 50 in the specific embodiment of the invention, stator 40 also can cooperate with the rotor of other structures that can support the birotor mode; Likewise, the stator 40 in the specific embodiment of the invention, rotor 50 also can cooperate with the stator of other structures that can support the 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 for use; And the rotor that is aided with other structures matches; Perhaps, axial gap electric motor also can only be selected the rotor 50 in the specific embodiment of the invention for use, and the stator that is aided with other structures matches.At this moment, still can improve specific power.
In addition, in practical application:
Axial gap electric motor 1 in the specific embodiment of the invention is as the power part of automobile the time, and the output shaft that rotating shaft 30 can be used as axial gap electric motor 1 is connected with speed changer or input shaft of speed reducer;
And according to the axial gap electric motor in the specific embodiment of the invention 1, when car deceleration, axial gap electric motor 50 can serve as generator to be realized generator function promptly producing so-called regenerative braking power, is electric energy with 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 power part, can also be applicable to every field such as factory, medical treatment, metallurgy, aviation as automobile.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (10)
1. the stator of an axial gap electric motor is characterized in that, said stator is on the bearing of trend of the rotating shaft of said axial gap electric motor between two rotors at said axial gap electric motor;
Said stator has the stator yoke portion of a ring-type, and said stator yoke portion is provided with a plurality of stator tooths towards the both ends of the surface of two said rotors respectively symmetrically, and each said stator tooth is twined the stator winding that forms a correspondence by electric wire.
2. stator according to claim 1 is characterized in that, the side face of said stator yoke portion further is formed with the stator slot of ring-type, and the both ends of the surface of said stator yoke portion further are formed with the wiring hole that is communicated with said stator slot; And said electric wire is interspersed in a plurality of said wiring holes through said stator slot, forms corresponding said stator winding to twine respectively at each said stator tooth.
3. stator according to claim 2 is characterized in that, each said stator tooth is corresponding with a pair of said wiring hole of its place end face; Said electric wire is along the bearing of trend wiring of said stator slot; Alternately from every pair of said wiring hole of different end faces passes said stator slot; And penetrate said stator slot from another; And the part that said electric wire is positioned in the position of every pair of said wiring hole outside the said stator slot is twined a said stator winding that forms this said stator tooth correspondence at this to a corresponding said stator tooth of said wiring hole.
4. stator according to claim 1 is characterized in that, each said stator tooth successively decreases from the inboard of the lateral said stator yoke portion of said stator yoke portion in the circumferential width of the position in the radial direction of said stator yoke portion.
5. stator according to claim 1 is characterized in that the end of said stator tooth is formed with chamfering.
6. an axial gap electric motor comprises rotating shaft, it is characterized in that, also comprising can be around two rotor of said rotating shaft rotation, and like any one described one stator in the claim 1 to 5.
7. axial gap electric motor according to claim 6 is characterized in that, each said rotor comprises:
Reel, it is fixedly connected with said rotating shaft;
The rotor frame of ring-type, it is fixedly connected with said reel;
The rotor yoke portion of ring-type, it is fixedly connected with said rotor frame;
A plurality of main permanent magnets, a plurality of said main permanent magnets are arranged along the circumferential direction of said rotor yoke portion, and are fixed in said rotor yoke portion;
A plurality of secondary permanent magnets, a plurality of said secondary permanent magnets are located at respectively between per two adjacent said main permanent magnets, and are fixed in said rotor yoke portion;
Wherein, the pole orientation of a plurality of said main permanent magnets is parallel to the bearing of trend of said rotating shaft; The pole orientation of per two adjacent said main permanent magnets is opposite; Two magnetic poles of each said secondary permanent magnet are opposed with the magnetic pole homopolarity towards said stator one end of the said main permanent magnet of its both sides respectively;
And the said reel of two said rotors is fixedly connected with same said rotating shaft, and the pole orientation of the mutual opposed said main permanent magnet of two said rotors is opposite.
8. axial gap electric motor according to claim 7; It is characterized in that each said main permanent magnet successively decreases from the inboard of the lateral said rotor yoke portion of said rotor yoke portion in the circumferential width of the position in the radial direction of said rotor yoke portion.
9. axial gap electric motor according to claim 7 is characterized in that said rotor frame is made up of non magnetic material.
10. axial gap electric motor according to claim 7 is characterized in that, said rotor yoke portion is that magnetic conductive material constitutes.
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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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| 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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| CN102624108A true CN102624108A (en) | 2012-08-01 |
| CN102624108B CN102624108B (en) | 2014-07-30 |
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| CN104158361A (en) * | 2014-09-03 | 2014-11-19 | 肖振霞 | Rudder-shaped stator double-rotor permanent magnet generator |
| CN104158362A (en) * | 2014-09-05 | 2014-11-19 | 东南大学 | Non-coaxial disc-type magnetic gear |
| US10075030B2 (en) | 2015-08-11 | 2018-09-11 | Genesis Robotics & Motion Technologies Canada, Ulc | Electric machine |
| CN109245340A (en) * | 2018-11-28 | 2019-01-18 | 核心驱动科技（金华）有限公司 | A kind of stator core and processing method |
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| US11043885B2 (en) | 2016-07-15 | 2021-06-22 | Genesis Robotics And Motion Technologies Canada, Ulc | Rotary actuator |
| 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 |
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