CN1157502A - Unyoked slotless axial magnetic circuit motor - Google Patents
Unyoked slotless axial magnetic circuit motor Download PDFInfo
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- CN1157502A CN1157502A CN 96114011 CN96114011A CN1157502A CN 1157502 A CN1157502 A CN 1157502A CN 96114011 CN96114011 CN 96114011 CN 96114011 A CN96114011 A CN 96114011A CN 1157502 A CN1157502 A CN 1157502A
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Abstract
The present invention relates to an unyoked slotless axial magnetic circuit motor. It is a brushless disk-type motor which possesses a structure formed from birotor, double gap and indepdendent column cores free from stator yoke and stator slot, at the same time can provide permanent magnet and exciting magnet composite excitation and can effectively regulate output voltage. Said invention possesses the advantages of simple manufacturing process and equipment, simple structure, high efficiency and low cost and the like, and a brushless disk-type motor of magnetizer moulding free from waster materials and of mixing excitation of permanent magnet and exciting magnet is provided.
Description
The present invention relates to axial magnetic circuit motor.Specifically a kind ofly do not have stator yoke, do not have stator slot, have the motor of plane working gas gap.The generator of especially a kind of permanent magnet, excitation body composite excitation brushless structure.
Existing axial magnetic circuit motor, the promptly domestic best typical case who is called disc type electric machine, its stator core (seeing Fig. 6 a, 6b) Yi Bian band commonly used punching on one side apart from unequal slotted eyes all, roll, constitute tooth at last, groove is arranged, the complete iron core of yoke arranged.Another is to adopt the tooth of independent coiling and the disk yoke of independent coiling, is combined as a whole with securing member, and constitutes complete iron core.
The motor of above-mentioned two kinds of structures still exists certain shortcoming.
The former though iron core adopts band, has improved the utilance of silicon steel, but, since with on slotted eye, any adjacent distance is all unequal, require machining accuracy height, complex process, apparatus expensive, cause the unit cost very high, make axial magnetic circuit motor be subjected to great restriction in the popularization of China.The latter is a kind of composite type, has simplified the tooling device of iron core forming, but exists the technology air gap between tooth and the yoke again inevitably, has promptly additionally increased the potential drop in this air gap, and also added certain trouble on technology.
Above two kinds of situations, all cored yoke portion.In the design of present motor, owing to technical reason, often select very greatly with the magnetic of yoke portion is close, the magnetic of long-range dried tooth portion is close, therefore, has just increased the potential drop and the iron loss of this section magnetic circuit, brings obstacle for improving electric efficiency undoubtedly.
Moreover the hybrid excitation generator that has occurred at present is to be integrally combined by axial direction with permanent magnet generator by the excitation generating.The magnetic circuit of its excitation effect and the magnetic circuit of permanent magnetic action join together on rotor pole faces, still provide radial flux.Its permanent magnet generator part does not have any difference with existing common permanent magnet generator.Obviously, it is on the basis of magnetic circuit permanent magnet generator radially, increases by one section excitation power generation part.Its structure relative complex many, the manufacturing process complexity, cost strengthens.Because it has permanent magnetism and electromagnetism two parts magnetic circuit, design and calculating all comparatively bother again.In addition, this kind generator voltage is regulated needed changes of magnetic field, assigned to realize by electric excitation division, and the magnetic field of this part only accounts for the sub-fraction of total magnetic field.So its variation causes that the variation of total magnetic field is less, therefore, certain limitation is arranged to the adjusting of voltage.When especially rotating speed, load were significantly with frequent variations, its voltage-regulation was just not competent, as alternator for vehicle.
No yoke provided by the present invention, slotless axial magnetic circuit motor especially use permanent magnetism, excitation mixed structure, exactly the novel concept axial magnetic circuit motor that designs at above-mentioned shortcoming and defect.
First purpose of the present invention provides no yoke, slotless axial magnetic circuit motor, and province outspan portion and groove further improve the utilance of silicon steel, and simplify the processing technology and the tooling device of motor greatly, reduce production costs.
Further object of the present invention provides no yoke, slotless axial magnetic circuit motor, eliminates the potential drop and the various consume thereof of yoke portion.And shortened magnetic circuit, eliminated the remaining air gap of technology,, found feasible way for improving electric efficiency once more.
A free-revving engine of the present invention, provide no yoke slotless, the axial magnetic circuit generator of permanent magnetism, excitation composite excitation has been realized brushless excitation, overcome the shortcoming that permanent magnet generator can not pressure regulation, for exploitation permanent magnetic material and exploitation permanent magnet generator are found out a reliable and effective approach.
Another purpose of the present invention provides no yoke, slotless axial magnetic circuit motor, has increased the area of dissipation of stator, and convenient axial, radial ventilation under the same conditions, can increase the power output of motor Unit Weight.
Still a further object of the present invention provides no yoke, slotless axial magnetic circuit motor, adapts to the stator Shooting Technique and utilizes composite material to replace steel, is convenient to make ultra-micromotor.
The present invention does not have yoke, the slotless axial magnetic circuit motor is achieved in that
In a kind of no yoke of mainly forming, slotless, axial magnetic circuit motor by casing, rotor, stator, bearing and arbor, by independently n columnar iron core and the winding above iron core constitute the stator of no yoke, slotless separately, a said n columnar iron core and top winding thereof are by support unit supporting location, and are contained on the arbor by bearing holder (housing, cover).Have rotor at the stator core two ends, on rotor, press a circle distribution m magnetic pole.Rotor is fastened on the arbor by nut, spring washer.Motor does not have end cap.The ratio that number of magnetic poles m and columnar iron core are counted n is 1: 1 or 1: 2,2: 3.
The motor of this structure of the present invention also can be realized like this: stator core and top coil, combine by support unit and arbor, and an end of arbor is fixed on the support.Rotor and casing combine, and casing props up the rotation of winding arbor, casing double as belt pulley by bearing by arbor.
The motor of this structure of the present invention also can be realized like this: an end of columnar iron core, by circle distribution, directly be fixed on the support plate, and be with winding coil above.Have the other end of the rotor of magnetic pole at columnar iron core, and be fixed on an end of arbor, arbor is rotated by the bearing supporting by support plate.
No yoke provided by the invention, slotless axial magnetic circuit motor is characterized in that: no stator yoke, no stator slot.The some columns that roll into permeability magnetic material are as stator core.Be wound with coil on each columnar iron core, press certain way and connect as armature; Rotor can be put with excitation winding brushless excitation at the two ends of stator between two rotors.Using permanent magnet pole and excitation body magnetic pole on every rotor simultaneously, set up air-gap field jointly, is a kind of brushless composite excitation structure of axial magnetic flux.
The present invention does not have yoke, slotless axial magnetic circuit mixed excitation electric machine is achieved in that in a kind of no yoke of mainly being made up of birotor, single stator, arbor, end cap, slotless axial magnetic circuit motor, permanent magnet, excitation body are set up main field jointly, have birotor, double-acting air gap, excitation winding occupies between two rotors, mixes on every rotor and uses excitation body magnetic pole and permanent magnet pole.Independently columnar iron core and the winding on the iron core press circumference uniform distribution by support plate and are located separately.Excitation winding is fixed on the central authorities of support plate, and promptly the no yoke of formation, slotless axial magnetic circuit have the stator of excitation winding.
In the motor of this structure, the arbor stage casing is as magnetic excitation circuit, and on every rotor, permanent-magnet pole and field pole are alternately placed.The magnetic potential series connection of two rotors is used or in parallel the use, constitutes the composite excitation structure.
Motor of the present invention also can be realized like this: in the no yoke of mainly being made up of casing, rotor, stator and arbor, slotless axial magnetic circuit motor, by independent columnar iron core and the winding above iron core are fixed on the support plate by circle distribution separately, the other end at stator has rotor, one end of rotor and arbor tightens together, and is contained on the support plate by bearing.
The motor of this structure of the present invention can be realized like this: the magnetic pole of motor all is permanent magnet or all is the excitation body.
No yoke provided by the invention, slotless axial magnetic circuit motor and mixed excitation electric machine, its number of magnetic poles and columnar iron core number connect certain proportion, can realize single-phase, two-phase, three-phase.
No yoke provided by the invention, slotless axial magnetic circuit motor are not difficult to find out by the said structure feature, and its advantage is: dual-rotor structure has strengthened air-gap field, and then has improved the unit volume power output.This structure can realize brushless composite excitation, and permanent magnet pole and excitation body magnetic pole intert and use, and have accomplished real " mixing ", change the interaction relationship of permanent magnet magnetic potential and electric excitation gesture at any time arbitrarily, and the pole arrangement situation.Therefore, main field is regulated in can be on a large scale, and then has solved the problem of permanent magnet generator pressure regulation difficulty.
Another advantage of the present invention, because motor of the present invention adopts columnar iron core, simple shape, makes things convenient for machine-shaping at the system of can folding of can reeling, and has simplified technology, tooling device etc. greatly.Owing to adopt band silicon steel, be convenient to blanking, make raw-material utilance higher, realize that magnetic conductor does not have waste material production.Therefore can reduce production costs significantly, overcome the expensive shortcoming of existing disc type electric machine.
Magnetic circuit is simplified and shortened to an advantage more of the present invention because no yoke is eliminated potential drop and other loss on this section magnetic circuit,, and not only calculation Design is convenient, can further raise the efficiency again.
Another advantage of the present invention: this motor can use no end cap structure, and iron core is that some independently columns are formed in addition, and surface area is big, and the radial-axial ventilating hole channel that has nature to form has good radiating condition.And do not have yoke, slotless configuration, adapt to the stator Shooting Technique.Can be with axial magnetic circuit motor to meticulousr field development.
Description of drawings is as follows:
Fig. 1 is embodiments of the invention one, and birotor does not have the structural representation of yoke, slotless, hybrid excitation generator.
Fig. 2 a is the embodiment of the invention two, and rotor is at the no yoke at two ends, the structural representation of slotless axial magnetic circuit motor, and Fig. 2 b is the A-A cutaway view of Fig. 2 a.
Fig. 3 is a motor of the present invention when being 4 utmost points, magnetic flux approach expanded view.
Fig. 4 is the structural representation of embodiments of the invention three.
Fig. 5 is embodiments of the invention four, the structural representation of rotor at one end the time.
Fig. 6 a, 6b are existing disk type motor stator core structural representations.
9. support 10. excitation winding of 1. arbors, 2. bearings, 3. rotor 3-1. excitation body magnetic pole 3-2. permanent magnet poles, 4. casing 4-1. rear end cap 4-2. front end housings, 5. working gas gaps, 6. columnar iron core 7. windings, 8. support plates (support unit) among the figure
Be described further below in conjunction with drawings and Examples:
Embodiment one: consult Fig. 1, and this no yoke, the axial hybrid excitation generator of slotless, the excitation winding 10 above mainly being reached by arbor 1, rotor 3, rear end cap 4-1, front end housing 4-2, columnar iron core 6, support plate 8 etc. are formed.As seen from the figure: columnar iron core 6 is together with top winding 7, and by support plate 8 location combinations, excitation winding 10 promptly constitutes the field frame assembly of motor by the central authorities of winding skeletal fixation at support plate 8.Field frame assembly is by rear end cap 4-1 and front end housing 4-2 clamping location.Rotor 3 is at the two ends of columnar iron core, and fastening with arbor 1, above distribution excitation body magnetic pole 3-1 and permanent magnet pole 3-2.Magnetic pole end face and iron core end face have working gas gap 5.Arbor is by the 2 supporting rotations of the bearing on the end cap.The iron core ratio of counting of epitrochanterian number of magnetic poles and stator is 1: 1 or 1: 2,2: 3.9 is support.
Embodiment two: consult Fig. 2 a, this no yoke, slotless axial magnetic circuit motor mainly are made up of axle 1, bearing 2, casing 4, columnar iron core 6 etc.As can be seen from the figure rotor 3 is fixed on the arbor 1, and rotor 3 is a disk, above lobed magnetic pole 3-1.Between two rotors 3, be columnar iron core 6, winding 7 is arranged on columnar iron core 6.They are by support unit 8, and are enclosed within on the arbor 1 by bearing 2.Between iron core 6 and the magnetic pole 3-1 working gas gap 5 is arranged.Arbor is rotated by the support unit supporting by bearing.The ratio of number of magnetic poles and columnar iron core number is 1: 1 or 1: 2,2: 3.9 is support.
Shown in Figure 3, be to be the expanded view that example illustrates operation principle with 4 utmost point motors.The centre is a columnar iron core 6, and two ends are epitrochanterian magnetic pole 3-1, and dotted line is the approach of main flux among the figure.Magnetic pole is alternately arranged, and when rotor rotation, just has alternating flux to produce in the columnar iron core, then just produces induced electromotive force in the winding 7 on the iron core 6.
Embodiment three: consult Fig. 4, mainly be made up of arbor 1, bearing 2, rotor 3, casing 4, columnar iron core 6 etc.With embodiment two dissimilarities, be columnar iron core 6 together with the winding on it 7, be combined into one by support unit 8 and arbor 1, arbor 1 is fixed together by securing member and support 9, does not rotate.Rotor 3 is then fastening by screw with casing 4, and rotates around arbor 1 by bearing.Casing double as belt pulley.
Embodiment four, consult Fig. 5, and this is to have only an end that the structure of rotor is arranged, and magnetic pole 3-1 is arranged on the rotor 3, the situation that the other end then combines for columnar iron core 6 and support plate 8.9 is support.The title of other part is all identical with embodiment one, two with Part No..
Claims (10)
1, a kind of no yoke, slotless, axial magnetic circuit motor, it mainly is made up of casing, rotor, stator, bearing and arbor, it is characterized in that: by n columnar iron core (6) and be wound on the stator that winding (7) above the iron core (6) constitutes no yoke, slotless independently separately, a said n columnar iron core (6) and top winding (7) thereof are by support unit (8) supporting location, and are sleeved on the arbor (1) by bearing (2); Have rotor (3) at the stator core two ends, go up by a circle distribution m magnetic pole (3-1) at rotor (3); Rotor (3) is fastened on the arbor (1) by nut, spring washer; Motor does not have end cap.
2, no yoke according to claim 1, slotless axial magnetic circuit motor is characterized in that: casing (4) is fixed together with stator, and casing (4) bottom has support (9).
3, no yoke according to claim 1, slotless axial magnetic circuit motor is characterized in that: casing (4) is fixed together with rotor (3), and stator and arbor (1) are fixed together; Casing (4) cylindrical forms a belt pulley.
4, a kind of no yoke, slotless, axial magnetic circuit motor mainly are made up of birotor, single stator, arbor, end cap, it is characterized in that: permanent magnet, excitation body are set up main field jointly, have birotor (3), double-acting air gap (5); Excitation winding (10) occupies between two rotors, mix on every rotor and use excitation body magnetic pole (3-1) and permanent magnet pole (3-2), independently columnar iron core (6) and winding (7) above iron core (6) separately, press the circumference uniform distribution location by support plate (8), excitation winding (10) is fixed on the central authorities of support plate (8), and promptly the no yoke of formation, slotless, axial magnetic circuit have the stator of excitation winding.
5, no yoke according to claim 4, slotless, axial magnetic circuit motor is characterized in that: the arbor stage casing is as magnetic excitation circuit, and on every rotor, permanent-magnet pole and field pole are alternately placed; The magnetic potential series connection of two rotors is used or in parallel the use, constitutes the composite excitation structure.
6, a kind of no yoke, slotless axial magnetic circuit motor, mainly form by casing, rotor, stator and arbor, it is characterized in that: by independent columnar iron core (6) separately and the winding (7) above iron core (6), connecing circle distribution is fixed on the support plate (8), the other end at stator has rotor (3), rotor (3) is fastening with an end of arbor (1), is contained on the support plate (8) by bearing (2).
7, according to claim 1,4,6 described no yokes, slotless axial magnetic circuit motor, it is characterized in that: magnetic pole all is a permanent magnet.
8, according to claim 1,4,6 described no yokes, slotless axial magnetic circuit motor, it is characterized in that: magnetic pole all is the excitation body.
9, according to claim 1,2,3 described no yokes, slotless axial magnetic circuit motor, it is characterized in that: epitrochanterian magnetic pole is that permanent magnet, excitation body mix placement.
10, according to claim 1,4,6 described no yokes, slotless axial magnetic circuit motor, it is characterized in that: the ratio that number of magnetic poles m and columnar iron core are counted n is 1: 1 or 1: 2,2: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96114011A CN1055181C (en) | 1996-01-10 | 1996-12-27 | Unyoked slotless axial magnetic circuit motor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96100040.6 | 1996-01-10 | ||
| CN 96100040 CN1142135A (en) | 1996-01-10 | 1996-01-10 | Unyoked solt-less axial magnetic-path motor |
| CN96114011A CN1055181C (en) | 1996-01-10 | 1996-12-27 | Unyoked slotless axial magnetic circuit motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1157502A true CN1157502A (en) | 1997-08-20 |
| CN1055181C CN1055181C (en) | 2000-08-02 |
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ID=25743930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96114011A Expired - Fee Related CN1055181C (en) | 1996-01-10 | 1996-12-27 | Unyoked slotless axial magnetic circuit motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055181C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999035731A1 (en) * | 1997-12-31 | 1999-07-15 | Zhenxia Xiao | Slotless synchronous generator |
| CN1060893C (en) * | 1997-12-31 | 2001-01-17 | 肖振霞 | Non-groove synchronous generator |
| CN1062091C (en) * | 1997-12-31 | 2001-02-14 | 肖振霞 | Non-groove static excitation synchronous generator |
| CN1300914C (en) * | 2004-11-29 | 2007-02-14 | 天津大学 | Controllable flux permanent magnetic synchronous motor of multiple pole number built-in mixed rotor magnetic path structure |
| CN102843012A (en) * | 2012-09-26 | 2012-12-26 | 赵春荣 | Toggling type energy-saving motor |
| CN109228895A (en) * | 2018-10-25 | 2019-01-18 | 李洪广 | A kind of range extender of electric vehicle and control method |
| CN110034639A (en) * | 2018-01-12 | 2019-07-19 | 开利公司 | Electrical motor driven machine is integrated |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6229771U (en) * | 1985-08-02 | 1987-02-23 |
-
1996
- 1996-12-27 CN CN96114011A patent/CN1055181C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999035731A1 (en) * | 1997-12-31 | 1999-07-15 | Zhenxia Xiao | Slotless synchronous generator |
| CN1060893C (en) * | 1997-12-31 | 2001-01-17 | 肖振霞 | Non-groove synchronous generator |
| CN1062091C (en) * | 1997-12-31 | 2001-02-14 | 肖振霞 | Non-groove static excitation synchronous generator |
| CN1300914C (en) * | 2004-11-29 | 2007-02-14 | 天津大学 | Controllable flux permanent magnetic synchronous motor of multiple pole number built-in mixed rotor magnetic path structure |
| CN102843012A (en) * | 2012-09-26 | 2012-12-26 | 赵春荣 | Toggling type energy-saving motor |
| CN110034639A (en) * | 2018-01-12 | 2019-07-19 | 开利公司 | Electrical motor driven machine is integrated |
| CN109228895A (en) * | 2018-10-25 | 2019-01-18 | 李洪广 | A kind of range extender of electric vehicle and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1055181C (en) | 2000-08-02 |
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