CN202713104U - Outer rotor-type eccentric rotor variable-magnetic resistance motor - Google Patents
Outer rotor-type eccentric rotor variable-magnetic resistance motor Download PDFInfo
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- CN202713104U CN202713104U CN2011204573767U CN201120457376U CN202713104U CN 202713104 U CN202713104 U CN 202713104U CN 2011204573767 U CN2011204573767 U CN 2011204573767U CN 201120457376 U CN201120457376 U CN 201120457376U CN 202713104 U CN202713104 U CN 202713104U
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- variable reluctance
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Abstract
The utility model discloses an outer rotor-type eccentric rotor variable-magnetic resistance motor. The outer rotor-type eccentric rotor variable-magnetic resistance motor includes an eccentric rotor, a stator, excitation windings and a drive outer gear ring and a driven inner gear ring. The stator is composed of a salient-pole stator and a shaft for fixing the salient-pole stator, wherein the salient pole stator is provided with a plurality of stator salient poles which are circumferentially and evenly arranged outwardly with the excitation windings winding around the stator salient poles of the salient-pole stator; an annular stamped sheet made of a soft magnetic material is laminated and pressed to form the eccentric rotor; the drive outer gear ring is fixedly installed with the eccentric rotor, and the driven inner gear ring is fixed inside a motor housing and maintains engagement with the drive outer gear ring; and the eccentric rotor is eccentric relative to the stator, thereby forming the outer rotor-type eccentric rotor variable-magnetic resistance motor of the utility model. A radial force is used for operation, and the weight of the rotor is light, so the outer rotor-type eccentric rotor variable-magnetic resistance motor of the utility model has the advantages of high power density, compact structure and excellent dynamic performance; and in addition, gradient air-gap structures enable more stable torque output and low-vibration noise.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to the outer-rotor-type eccentric rotor variable reluctance motor of a kind of relative stator and rotating motor housing off-centre, belongs to the electric equipment field.
Background technology
Variable reluctance motor is a kind of novel buncher, and governing system has direct current concurrently, exchanges the advantage of two class governing systems, is the latest generation stepless time adjustment system of frequency conversion speed-adjusting system, Speed Regulating System of Brushless DC Motor of continuing.It simple in structure firm, speed-regulating range width, speed adjusting performance is excellent, and all has greater efficiency in whole speed adjustable range, and system reliability is high, is suitable for high-speed cruising, is subject to the extensive concern of personage in the industry.
Usually variable reluctance motor comprises stator and the rotor with respect to the stator rotation that is installed in the support, and the outstanding magnetic pole of opening according to certain intervals is arranged on stator and the rotor, and the number of magnetic poles of stator and rotor is staggered relatively with certain rule.Attempt to rotate to when rotor and magnetic circuit reluctance is minimized or during the maximized position of stator winding inductance, variable reluctance motor produces reluctance force and produces torque and externally does work.
Yet, because the inherent shortcoming of traditional variable reluctance motor (torque ripple, iron loss and magnetic loss are large, noise is large) so that the application of variable reluctance motor is extremely restricted; Large such as the control difficulty, the height of controlling cost, iron loss is large, etc.; In order to improve the defective of traditional variable reluctance motor, the countries in the world scholar has carried out positive research to root and the improved measure of its defective, for reducing iron loss and energization density, has and takes single-phase multiple tooth short magnetic circuit structural.
For improve its torque fluctuations with and the vibration noise level, Chinese invention patent application: switched reluctance machines (number of patent application: 200680043128.X) improve noise level by the mode of optimizing rotor magnetic pole structure; And Chinese invention patent application: magnetic resistant electric motor with double stator switch (number of patent application: 200510037635.X) adopt double-stator structure to improve its torque ripple situation, but the source that the technical scheme that above two kinds of applications for a patent for invention are adopted is not all improved vibration noise, namely the excessive while also is the radial load that flogs a dead horse.
The utility model content
The technical problem that the utility model solves provides a kind of outer-rotor-type eccentric rotor variable reluctance motor of new structure, to reduce magnetic loss, improves electric efficiency and energy density and reduces the output torque fluctuation; Improve simultaneously the useful life of motor.
Be technical problem described in the technical solution background, the utility model adopts following technical scheme:
A kind of outer-rotor-type eccentric rotor variable reluctance motor, comprise eccentric rotor, stator and excitation winding and driving external toothing and be subjected to ring gear, wherein, described stator comprises salient pole stator and axle, the salient pole stator is fixed in the periphery of axle, the periphery of described salient pole stator has a plurality of stator salient poles of arranging along even circumferential, and excitation winding is wound on the stator salient poles, and each excitation winding consists of a phase;
The annulus punching that described eccentric rotor is made by soft magnetic material is overrided to form, and with respect to stator and rotating motor housing arranged off-centre, stator places in the eccentric rotor;
Drive middle part or two ends that external toothing is fixed in eccentric rotor, be fixed in the rotating motor housing by ring gear, described driving ring gear and be subjected to external toothing always to keep interior engagement, and the eccentric rotor inner headed face always keeps nonslipping the contact with the stator periphery, two breath structures that ladder becomes that eccentric rotor inner headed face and stator outside is round-formed like this;
Can freely rotate around axle by ring gear and rotating motor housing;
During loaded work piece, described excitation winding energising, described eccentric rotor is around described stator rotation, around self axis autobiography, when excitation winding is switched on, pass through magnetic fields simultaneously, drive eccentric rotor around stator rotation, the eccentric rotor inner headed face always keeps nonslipping the contact with a place of stator periphery, is subjected to ring gear by driving the external toothing driving, rotates the output torque acting thereby drive rotating motor housing.
Wherein, described stator is in the described eccentric rotor.
Wherein, eccentric rotor axial line and stator and the certain distance of rotating motor housing axial line skew, namely eccentric rotor is eccentric with respect to stator and rotating motor housing.
Wherein, the material that rotating motor housing adopts is indefinite, and it is connected by bearing with axle, and concentric with stator.
Wherein, the eccentric rotor annular punching of being made by soft magnetic material is overrided to form.
Wherein, the punching that the salient pole stator is made by soft magnetic material is overrided to form, and this punching periphery has several stator salient poles of arranging along even circumferential.
Wherein, the notch of salient pole stator is mounted with one or polylith permanent magnet.
Wherein, the notch of salient pole stator can install that fixing non-magnet material makes every magnetic patch.
Wherein, the driving external toothing that is fixedly installed in the eccentric rotor two ends can keep being rotationally connected by two bearings and axle respectively.
Wherein, keep to drive in external toothing and axle two bearings free to rotate, a bearing supports eccentric rotor around the revolution of axle, and bearing supports eccentric rotor around the autobiography of self axis, and two bearings are by a bearing bracket stand installation.
Wherein, the salient pole stator can be comprised of the stator segment of segmentation.
Compared with prior art, the utlity model has following beneficial effect:
Outer-rotor-type eccentric rotor variable reluctance motor of the present utility model, stator comprise salient pole stator and axle, and place in the eccentric rotor; The annular punching that eccentric rotor is made by soft magnetic material is overrided to form, and itself and stator and rotating motor housing are eccentric; Like this, the inner headed face of eccentric rotor always has a place to keep nonslipping with the stator periphery to contact, and drives external toothing and be subjected to ring gear also always to keep engagement; When load, the excitation winding energising generates an electromagnetic field, and drives eccentric rotor, rotates externally output acting by driving external toothing and being subjected to ring gear to drive rotating motor housing; Collection magnetic function by eccentric rotor, so that leakage field reduces, breath structure by the change of the ladder between eccentric rotor and the stator, the output of acquisition counter balance torque, and because radial load is used for work and lighter eccentric rotor, so the utility model outer-rotor-type eccentric rotor variable reluctance motor is compared the traditional switch reluctance motor and is possessed higher energy density, higher operating efficiency, better dynamic characteristic and higher output torque quality.
Description of drawings
Fig. 1 is the outer-rotor-type eccentric rotor variable reluctance motor structural representation of the utility model the first specific embodiment;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is that the driving external toothing of the outer-rotor-type eccentric rotor variable reluctance motor of the utility model the second specific embodiment is fixed in the two ends of eccentric rotor and is subjected to ring gear to be fixed in the structural representation at rotating motor housing two ends;
Fig. 4 is the structural scheme of mechanism that is wound with excitation winding on the salient pole stator of outer-rotor-type eccentric rotor variable reluctance motor of the utility model the 3rd specific embodiment;
Fig. 5 is the B-B sectional view of Fig. 4;
Fig. 6 is the outer-rotor-type eccentric rotor variable reluctance motor segmentation salient pole stator structure schematic diagram of the utility model the 4th specific embodiment.
Embodiment
With reference to figure 1, this figure is the first specific embodiment structural representation of a kind of outer-rotor-type eccentric rotor variable reluctance motor of the utility model.
The outer-rotor-type eccentric rotor variable reluctance motor of the present embodiment, include stator (1), eccentric rotor (4), excitation winding (8A, 8B, 8C, 8D, 8E, 8F) and driving external toothing (7) and be subjected to ring gear (10), stator (1) comprises salient pole stator (2) and axle (3), and the outer surface that salient pole stator (2) is fixed in axle (3) forms stator (1); Excitation winding is wound on the stator salient poles (9-1,9-2,9-3,9-4,9-5,9-6), and wherein each excitation winding is a phase, that is, this specific embodiment outer-rotor-type eccentric rotor variable reluctance motor is six phases; In this specific embodiment, a stator salient poles is arranged between every phase, do not twine any winding on this stator salient poles; Each notch on the salient pole stator (2) is mounted with a permanent magnet or three permanent magnets (6); Drive the middle part that external toothing (7) is fixed in eccentric rotor, be fixed in the rotating motor housing (11) by ring gear (10), drive external toothing and always keep interior engagement with being subjected to ring gear; Eccentric rotor (4) and stator (1) arranged off-centre, in this specific embodiment, eccentric distance between the axial line O ' of eccentric rotor and the center line O of stator is L, the inner surface S2 of eccentric rotor and the outer surface S1 of stator (1) always keep not contacting slidably, like this, two breath structures that ladder becomes have been formed between S1 and the S2; Rotating motor housing (11) forms by two bearings (5-1,5-2) with axle (3) and is rotationally connected;
In this specific embodiment, eccentric rotor (4) and stator (1) and rotating motor housing (11) arranged off-centre, drive external toothing and always keep engagement with being subjected to ring gear, the eccentric rotor inner headed face always keeps nonslipping the contact with the stator periphery, the both sides, position of contact are that symmetrical ladder becomes the breath structure, during work, the excitation winding energising produces excitation field, this magnetic field is always by the salient pole stator, breath and eccentric rotor form the loop, drive eccentric rotor around the actuating force of stator rotation thereby form, finally by driving external toothing and be subjected to ring gear, externally output acting; Simultaneously conducting of two-phase that also can be adjacent energising is to obtain larger moment of torsion output;
In the work, permanent magnet (6) magnetic field by notch, eccentric rotor forms fricton-tight the contact with the stator periphery all the time, so also allows the driving external toothing that is fixedly installed in eccentric rotor periphery middle part always keep engagement with the ring gear that is subjected to that is fixed in the rotating motor housing;
With reference to figure 2, be the A-A sectional view of Fig. 1;
Form free to rotate being connected by bearing (5-1,5-2) between axle (3) and the rotating motor housing (11).Be fixed in the rotating motor housing (11) by ring gear (10), and drive the middle part that external toothing (7) is fixed in the periphery S3 of eccentric rotor.
With reference to figure 3, for the driving external toothing of the utility model the second specific embodiment outer-rotor-type eccentric rotor variable reluctance motor is mounted on the eccentric rotor two ends and is subjected to ring gear to be mounted on the structural representation at rotating motor housing two ends.
Drive the two ends that external toothing (90-1,90-2) is fixed in eccentric rotor (111), be subjected to ring gear (100-1,100-2) to be fixed in the two ends of rotating motor housing (110), and drive external toothing and keep engagement with being subjected to ring gear, drive external toothing (90-2) and form free to rotate being connected by two bearings (60-2,80-2) with axle, these two bearings are installed by bearing bracket stand (70-2), in two bearings, support eccentric rotor around the revolution of stator axial line for one, support eccentric rotor around the rotation of Pivot Point Center line for one; Two bearings are by a bearing bracket stand fixed installation; Drive external toothing (90-1) and form free to rotate being connected by two bearings (60-1,80-1) with axle, these two bearings are installed by bearing bracket stand (70-1), in two bearings, support eccentric rotor around the revolution of stator axial line for one, support eccentric rotor around the rotation of Pivot Point Center line for one; Two bearings are by a bearing bracket stand fixed installation; In four bearings (60-1,60-2,80-1,80-2), support rotor around the rotation of self axis for two, other two bearings support rotors around the revolution of axis stator; During work, eccentric rotor (111) is around stator rotation, be subjected to ring gear by driving the external toothing driving, while driving shaft bolster (70-1,70-2), purpose drives external toothing and is subjected to ring gear always to keep engagement for making, and the outer surface of the inner surface of eccentric rotor and stator always has a place to form nonslipping the contact;
Should be noted that content that this specific embodiment discloses can be applicable to any situation of the utility model institute disclosure.
With reference to figure 4, all be wound with the structural representation of excitation winding on the salient pole stator for the 3rd specific embodiment outer-rotor-type eccentric rotor variable reluctance motor of the present utility model.
Stator (100) comprises salient pole stator (200) and axle (300), stator salient poles on the salient pole stator (200) (200-1,200-2,200-3,200-4) all is wound with excitation winding (400-1,400-2,400-3,400-4), and notch is installed with a permanent magnet or polylith permanent magnet or NULL (600);
With reference to figure 5, be the B-B schematic cross-section of Fig. 4.
Drive the middle part that external toothing (700) is fixed in eccentric rotor (800), and be fixed in that the ring gear (1000) that is subjected at middle part keeps meshing in the rotating motor housing (1100), the inner headed face of eccentric rotor (800) always keeps nonslipping with the periphery of stator (100) and contacts, and rotating motor housing (1100) forms free to rotate being connected by bearing (500) with axle;
In this specific embodiment, when work, the mode of its output torque acting is identical with the first specific embodiment, repeats no more herein; Difference is, in this specific embodiment, each stator salient poles on the salient pole stator is wound with excitation winding, and neither one stator salient poles in the middle of the excitation winding.
With reference to figure 6, adopt the structural representation of segmentation salient pole stator for the outer-rotor-type eccentric rotor variable reluctance motor of the utility model the 4th specific embodiment.
The salient pole stator is interfixed by dovetail groove by four " recessed " shape stator segments (1600-1,1600-2,1600-3,1600-4) and forms, and also fixes by dovetail groove and axle simultaneously;
Should be noted that content that this specific embodiment discloses can be applicable to all situations of the utility model institute disclosure, simultaneously, also can adopt other sectionalized stator structures to interfix and form the salient pole stator; Other identical with aforementioned specific embodiment repeats no more herein.
Although preferred embodiment of the present utility model has disclosed as above, the utility model is not limited to above-described embodiment, and the technical staff is not breaking away from the situation of the present utility model when understanding, and can change disclosed configuration; Therefore, top several embodiment only are used for example and are not used in the restriction purpose; Not obvious change aforesaid operations it will be apparent to those skilled in the art that, in the situation that can be made amendment to configuration.
Claims (10)
1. outer-rotor-type eccentric rotor variable reluctance motor, include eccentric rotor, stator, excitation winding and driving external toothing and be subjected to ring gear, it is characterized in that, the annular punching that described eccentric rotor is made by soft magnetic material is overrided to form, stator is in the eccentric rotor, eccentric rotor and stator arranged off-centre, so that always having a place to keep nonslipping with a place of the periphery of stator, the inner headed face of eccentric rotor contacts, by this contact, two breath structures that ladder becomes have been formed between eccentric rotor inner headed face and the stator periphery;
Stationary part comprises salient pole stator and the fixing axle of salient pole stator, the punching that the salient pole stator is made by soft magnetic material is overrided to form, the periphery of salient pole stator has several along the stator salient poles that even circumferential is arranged, excitation winding is wound on the stator salient poles, and the salient pole stator is fixed on the axle;
Drive external toothing and fixed with eccentric rotor and rotating motor housing respectively by ring gear, and keep engagement;
During loaded work piece, described excitation winding energising, described eccentric rotor is around described stator rotation, simultaneously around self axis autobiography, in rotation process, the inner headed face of described eccentric rotor always has a place to keep nonslipping with a place of the outer garden face of described stator to contact, and drives external toothing and be subjected to ring gear always to have a place to keep meshing, like this, drive the described ring gear that is subjected to by described driving external toothing and externally export acting.
2. outer-rotor-type eccentric rotor variable reluctance motor according to claim 1, it is characterized in that, described stator is fixedly formed by salient pole stator and axle, and salient pole stator periphery wherein has several stator salient poles of arranging along even circumferential, and stator places in the eccentric rotor.
3. outer-rotor-type eccentric rotor variable reluctance motor according to claim 1, it is characterized in that, described excitation winding is wound on the stator salient poles, and when between two described excitation winding a stator salient poles being arranged, this described stator salient poles is not twined any coil windings.
4. outer-rotor-type eccentric rotor variable reluctance motor according to claim 1 is characterized in that, each notch of described stator salient poles is installed with one or polylith permanent magnet or every magnetic patch.
5. outer-rotor-type eccentric rotor variable reluctance motor according to claim 1, it is characterized in that, described eccentric rotor and described stator arranged off-centre, one place of the inner surface of eccentric rotor always forms nonslipping the contact with a place of the outer surface of stator, like this, eccentric rotor inner surface and stator outer surface have formed the breath structure of terraced change from the position that contacts.
6. outer-rotor-type eccentric rotor variable reluctance motor according to claim 1 is characterized in that, described driving external toothing and eccentric rotor are fixed, and are positioned at the middle part of eccentric rotor, or is positioned at the two ends of eccentric rotor.
7. outer-rotor-type eccentric rotor variable reluctance motor according to claim 6, it is characterized in that, the described driving external toothing that is fixed in the eccentric rotor two ends forms free to rotate being connected by two bearings and a bearing bracket stand with axle, wherein, in two bearings, support eccentric rotor around the revolution of stator axial line for one, support eccentric rotor around the rotation of Pivot Point Center line for one; Two bearings are by a bearing bracket stand fixed installation.
8. outer-rotor-type eccentric rotor variable reluctance motor according to claim 1 is characterized in that, be fixed in the rotating motor housing by ring gear, and remains engagement with the driving external toothing.
9. according to claim 1 or 8 described outer-rotor-type eccentric rotor variable reluctance motors, it is characterized in that, rotating motor housing forms free to rotate being connected with axle by bearing, and rotating motor housing is concentric with stator, like this, can freely rotate around axle by ring gear and rotating motor housing.
10. outer-rotor-type eccentric rotor variable reluctance motor according to claim 1 is characterized in that, the stator segment that the salient pole stator in the stator can be segmentation forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204573767U CN202713104U (en) | 2011-11-18 | 2011-11-18 | Outer rotor-type eccentric rotor variable-magnetic resistance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204573767U CN202713104U (en) | 2011-11-18 | 2011-11-18 | Outer rotor-type eccentric rotor variable-magnetic resistance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713104U true CN202713104U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204573767U Expired - Fee Related CN202713104U (en) | 2011-11-18 | 2011-11-18 | Outer rotor-type eccentric rotor variable-magnetic resistance motor |
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| Country | Link |
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| CN (1) | CN202713104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386742A (en) * | 2011-11-18 | 2012-03-21 | 何嘉颖 | Outer-rotor-type eccentric rotor variable reluctance motor |
| TWI481159B (en) * | 2013-02-23 | 2015-04-11 | Univ Nat Yunlin Sci & Tech | Energy conversion device with eccentric rotor |
-
2011
- 2011-11-18 CN CN2011204573767U patent/CN202713104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386742A (en) * | 2011-11-18 | 2012-03-21 | 何嘉颖 | Outer-rotor-type eccentric rotor variable reluctance motor |
| TWI481159B (en) * | 2013-02-23 | 2015-04-11 | Univ Nat Yunlin Sci & Tech | Energy conversion device with eccentric rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20141118 |
|
| EXPY | Termination of patent right or utility model |