CN209120021U - A kind of suspension tooth external outer rotor bearing-free switch reluctance motor - Google Patents
A kind of suspension tooth external outer rotor bearing-free switch reluctance motor Download PDFInfo
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- CN209120021U CN209120021U CN201822149124.2U CN201822149124U CN209120021U CN 209120021 U CN209120021 U CN 209120021U CN 201822149124 U CN201822149124 U CN 201822149124U CN 209120021 U CN209120021 U CN 209120021U
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- tooth
- suspension
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- rotor
- torque
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- 239000000725 suspension Substances 0.000 title claims abstract description 122
- 238000004804 winding Methods 0.000 claims abstract description 38
- 210000000529 third trochanter Anatomy 0.000 claims abstract description 20
- 230000005389 magnetism Effects 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000004907 flux Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Synchronous Machinery (AREA)
Abstract
The utility model discloses a kind of suspension tooth external outer rotor bearing-free switch reluctance motors, it includes outer rotor, exhausted magnetic axis and the first suspension stator being successively set on exhausted magnetic axis, torque stator and the second suspension stator, outer rotor includes magnetically permeable rotor body and the first rotor tooth being successively set on rotor body inner wall, the second rotor tooth and third trochanter tooth, and the first rotor tooth and third trochanter tooth are oppositely arranged with the suspension tooth on the first suspension stator and the second suspension stator respectively.Suspension tooth and torque tooth are separately positioned on different stators by use in the utility model, and the mode that suspension tooth is external, suspending windings and torque winding are not only enabled to control, work respectively, are independent of each other respectively, improve the control precision of motor, also make torque winding two sides be provided with suspending windings, improves suspension stability, device-based higher suspension stability, it is just able to satisfy the torque being stepped up, i.e., also improves torque stability simultaneously.
Description
Technical field
The utility model relates to technical field of switch reluctance motor, more particularly to a kind of suspension tooth external outer rotor without
Bearing switched reluctance machines.
Background technique
Bearing-free motor with no friction, abrasion, without lubrication and sealing, it is easy to accomplish higher revolving speed and more high-power fortune
Row, has broad application prospects in fields such as aerospace, turbomolecular pump, flywheel energy storage, canned pump, high-speed electric main shafts.
Bearing-free motor is broadly divided into asynchronous (induction) motor of bearing-free, bearing-free permanent magnet synchronous motor and bearing-free switch reluctance motor
Three kinds.Bearing-free switch reluctance motor especially therein has structure simple, and high mechanical strength controls flexible, error resilience performance
Good, the advantages such as robustness is good have broad application prospects in fields such as electric car, universal industrial, household electrical appliance.
Currently, traditional bearing-free switch reluctance motor is that the winding that magnetic bearing is generated suspending power is integrated into switching magnetic-resistance
In motor stator slot, equal coiling double winding, i.e. suspending windings and torque winding, pass through coordinated control torque on each stator tooth
Winding and suspending windings electric current, generate suspending windings magnetic field and torque winding magnetic field, the two are overlapped mutually, by rotor side
Air-gap field enhancing, opposite direction air-gap field weaken to obtain the radial suspension force for being directed toward air-gap field enhancing direction, torque
There are close couplings between control and the control that suspends.However, torque winding and suspending windings are arranged traditional bearing-free simultaneously
The same stator tooth of same stator or the mode on adjacent stators tooth, so that the magnetic flux generated between torque winding and suspending windings
Between can influence each other, cause the control precision, rotational stability and suspension stability of motor to reduce.
Utility model content
The purpose of this utility model is that in view of the drawbacks of the prior art and insufficient, provide that a kind of control precision is high, rotates
The suspension tooth external outer rotor bearing-free switch reluctance motor that stability is high and suspension stability is high.
To achieve the above object, the utility model provides following scheme: it is external that the utility model provides a kind of suspension tooth
Formula outer rotor bearing-free switch reluctance motor, including outer rotor, exhausted magnetic axis and be successively set on the exhausted magnetic axis first
In the outer rim of suspension stator, torque stator and the second suspension stator, the first suspension stator and the second suspension stator
It is provided with the identical suspension tooth in axially symmetric disposition of quantity, is provided with suspending windings, the torque on the suspension tooth
It is provided with the torque tooth in axially symmetric disposition in the outer rim of stator, is provided with torque winding on the torque tooth, described the
Permanent magnetism set is provided between one suspension stator and the second suspension stator, the both ends of the permanent magnetism set are outstanding with described first respectively
Floating fixed is connected with the second suspension stator, and the torque stator ring is located on the outer wall of the permanent magnetism set, the torque
It is provided with the first magnetism-isolating loop between stator and permanent magnetism set, the outer rotor includes magnetically permeable rotor body and successively sets
Set the first rotor tooth, the second rotor tooth and third trochanter tooth on the rotor body inner wall, the first rotor tooth and institute
It states third trochanter tooth to be oppositely arranged with the suspension tooth on the first suspension stator and the second suspension stator respectively, institute
It states the second rotor tooth and the torque tooth of the torque stator is oppositely arranged.
Preferably, the facewidth of the first rotor tooth is equal to the facewidth of the third trochanter tooth, the first suspension stator
It is identical with the facewidth of suspension tooth described on the second suspension stator.
Preferably, the facewidth of second rotor tooth is less than the facewidth of the first rotor tooth or the third trochanter tooth.
Preferably, the facewidth of the torque tooth is less than the facewidth of the suspension tooth.
Preferably, the number of teeth of the torque tooth is greater than the number of teeth of the suspension tooth.
Preferably, the number of teeth of the suspension tooth is 6, and the number of teeth of the torque tooth is 9.
Preferably, the second magnetism-isolating loop is provided between the first rotor tooth and second rotor tooth, the third turns
Sub- tooth and second rotor tooth are provided with second magnetism-isolating loop, are arranged between second rotor tooth and the rotor body
There is third magnetism-isolating loop.
Preferably, the material of first magnetism-isolating loop, second magnetism-isolating loop and the third magnetism-isolating loop is aluminium.
Preferably, displacement sensor, institute's rheme are provided on the first suspension stator and the second suspension stator
Displacement sensor is electrically connected with controller, and the controller is also electrically connected with the suspending windings.
Preferably, the permanent magnetism set is made of rare-earth permanent magnet or ferrite permanent magnet.
The utility model achieve compared with the existing technology it is following the utility model has the advantages that
1, using the tooth that will suspend in suspension tooth external outer rotor bearing-free switch reluctance motor provided by the utility model
It is separately positioned on different stators with torque tooth, and the mode that suspension tooth is external, not only enables suspending windings and torque winding
It is enough to control respectively, work, be independent of each other respectively, the control precision of motor is improved, torque winding two sides are provided with
Suspending windings, improve suspension stability, together device-based higher suspension stability is just able to satisfy the torque being stepped up, i.e.,
When also improve torque stability.
2, using setting first in suspension tooth external outer rotor bearing-free switch reluctance motor provided by the utility model
The mode of magnetism-isolating loop, the second magnetism-isolating loop or third magnetism-isolating loop, so that suspension work and rotation work are thoroughly separated, further
It ensure that control precision, torque stability and the suspension stability of motor.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the overall structure diagram of the utility model suspension tooth external outer rotor bearing-free switch reluctance motor；
Fig. 2 is the explosive view of Fig. 1；
Fig. 3 is whole after the utility model suspension tooth external outer rotor bearing-free switch reluctance motor removal rotor body
Body structural schematic diagram；
Fig. 4 is the cross-sectional view in Fig. 1 at suspending windings；
Fig. 5 is the cross-sectional view in Fig. 1 at torque winding；
Wherein, 1- rotor body, 2- the first rotor tooth, the second rotor tooth of 3-, 4- third trochanter tooth, 5- first suspend fixed
Son, 6- torque stator, the second suspension of 7- stator, 8- suspension tooth, 9- suspending windings, 10- torque tooth, 11- torque winding, 12- are forever
Magnetosheath, the first magnetism-isolating loop of 13-, the second magnetism-isolating loop of 14-, the exhausted magnetic axis of 15-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of this utility model is that in view of the drawbacks of the prior art and insufficient, provide that a kind of control precision is high, rotates
The suspension tooth external outer rotor bearing-free switch reluctance motor that stability is high and suspension stability is high.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
As shown in Figs. 1-5, the utility model provides a kind of 8 external outer rotor bearing-free switch reluctance motor of suspension tooth,
It is outstanding including outer rotor, exhausted magnetic axis 15 and the first suspension stator 5 being successively set on exhausted magnetic axis 15, torque stator 6 and second
It is identical in axially symmetric disposition that quantity is provided in the outer rim of floating fixed 7, the first suspension stator 5 and the second suspension stator 7
Suspension tooth 8, be provided with suspending windings 9 on suspension tooth 8, be provided in the outer rim of torque stator 6 in axially symmetric disposition
Torque tooth 10 is provided with torque winding 11 on torque tooth 10, is provided between the first suspension stator 5 and the second suspension stator 7
The both ends of permanent magnetism set 12, permanent magnetism set 12 are connected with the first suspension stator 5 and the second suspension stator 7 respectively, and 6 ring of torque stator is set
On the outer wall of permanent magnetism set 12, it is provided with the first magnetism-isolating loop 13 between torque stator 6 and permanent magnetism set 12, outer rotor includes magnetically permeable
Rotor body and the first rotor tooth 2, the second rotor tooth 3 and the third trochanter tooth 4 that are successively set on rotor body inner wall,
The first rotor tooth 2 and third trochanter tooth 4 are set with the suspension tooth 8 on the first suspension stator 5 and the second suspension stator 7 relatively respectively
It sets, the second rotor tooth 3 and the torque tooth 10 of torque stator 6 are oppositely arranged.
Wherein, radial suspension principle is: permanent magnetism set 12 generates biasing magnetic flux, and biasing magnetic flux passes through from the pole N of permanent magnetism set 12
Suspension stator (i.e. the first suspension stator 5 or the second suspension stator 7, are determined since which being first passed through by different pole orientations,
So specifically describe pass through which stator) suspension tooth 8, working gas gap, rotor tooth (i.e. the first rotor tooth 2 or third turn
Sub- tooth 4, reason is with above-mentioned suspension stator), rotor body, (i.e. the first rotor tooth 2 or third trochanter tooth 4, reason is same as above rotor tooth
State suspension stator), the pole S of working gas gap, the suspension tooth 8 of suspension stator, permanent magnetism ring set, form axial closed path.
The suspending windings 9 of first suspension stator 5 and the second suspension stator 7 be powered, generate respectively the first suspension control magnetic flux,
Second suspension control magnetic flux, the first suspension control magnetic flux are formed radially closed path in side side, and the second suspension control magnetic flux exists
The other side is formed radially closed path, biasing magnetic flux is adjusted in two sides respectively, in the radial suspension force for generating respective direction.
Axial suspension principle is: when outer rotor central axis is not overlapped with the central axis of inner stator, bias magnetic field will
Reluctance force is generated, outer rotor is retracted into equilbrium position, realizes the passive control of common outer roller axial and inclined direction.
Principle of Rotating is: torque winding 11 divided for heterogeneous structure, it is suitable to every phase wheel flow-thru electrode, or using other energizations
Sequence generates 11 magnetic field of torque winding, and 11 magnetic field of torque winding forms closed path between torque tooth 10 and rotor tooth, generates magnetic
Resistance generates torque, realizes rotor rotation.
In order to improve the stability of magnetic flux, suspension tooth 8, torque tooth 10, the first rotor tooth 2, second in the utility model
The end face of rotor tooth 3 and third trochanter tooth 4 is arc surface, further, suspension tooth 8 and the first rotor tooth 2 or third trochanter
When tooth 4 is in contact, contact surface is bonded completely, and when torque tooth 10 is in contact with the second rotor tooth 3, contact surface is bonded completely.
In order to guarantee suspension stability, the facewidth of the first rotor tooth 2 is equal to the tooth of third trochanter tooth 4 in the utility model
The facewidth of suspension tooth 8 is identical on width, the first suspension stator 5 and the second suspension stator 7.
In order to improve suspension tooth 8 it is external when, the rotational stability and revolving speed of torque tooth 10, the second rotor in the utility model
The facewidth of tooth 3 is less than the facewidth of the first rotor tooth 2 or third trochanter tooth 4.
The facewidth of torque tooth 10 is less than the facewidth of suspension tooth 8 in the utility model.
The number of teeth of torque tooth 10 is greater than the number of teeth of suspension tooth 8 in the utility model.
The number of teeth of suspension tooth 8 is 6 in the utility model, and the number of teeth of torque tooth 10 is 9.
The second magnetism-isolating loop 14, third trochanter tooth are provided in the utility model between the first rotor tooth 2 and the second rotor tooth 3
4 and second rotor tooth 3 be provided with the second magnetism-isolating loop 14, be provided with third magnetism-isolating loop between the second rotor tooth 3 and rotor body.
The material of the first magnetism-isolating loop 13, the second magnetism-isolating loop 14 and third magnetism-isolating loop is aluminium in the utility model.
Displacement sensor, displacement sensing are provided on the first suspension stator 5 and the second suspension stator 7 in the utility model
Device is electrically connected with controller, and controller is also electrically connected with suspending windings 9；Displacement sensor is installed, displacement closed-loop system is established,
When rotor displacement equilbrium position, by being displaced negative-feedback, the current value of suspending windings 9 is adjusted, generation makes rotor return to balance
The suspending power of position realizes that rotor stability suspends.
Permanent magnetism set 12 is made of rare-earth permanent magnet or ferrite permanent magnet in the utility model.
Specific case is applied in the utility model to be expounded the principles of the present invention and embodiment, it is above
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field
As technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of suspension tooth external outer rotor bearing-free switch reluctance motor, which is characterized in that including outer rotor, exhausted magnetic axis with
And it is successively set on the first suspension stator, torque stator and the second suspension stator on the exhausted magnetic axis, described first, which suspends, determines
The identical suspension tooth in axially symmetric disposition of quantity, the suspension are provided in the outer rim of the sub and described second suspension stator
Suspending windings are provided on tooth, being provided in the outer rim of the torque stator is in the torque tooth being axially and symmetrically disposed, and described turn
It is provided with torque winding on square tooth, permanent magnetism set, institute are provided between the first suspension stator and the second suspension stator
The both ends for stating permanent magnetism set are connected with the first suspension stator and the second suspension stator respectively, and the torque stator ring is set
On the outer wall of permanent magnetism set, the first magnetism-isolating loop, the outer rotor are provided between the torque stator and permanent magnetism set
Including magnetically permeable rotor body and the first rotor tooth being successively set on the rotor body inner wall, the second rotor tooth and
Third trochanter tooth, the first rotor tooth and the third trochanter tooth suspend with the first suspension stator and described second respectively
The suspension tooth on stator is oppositely arranged, and second rotor tooth and the torque tooth of the torque stator are oppositely arranged.
2. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 1, which is characterized in that described
The facewidth of the first rotor tooth is equal to the facewidth of the third trochanter tooth, on the first suspension stator and the second suspension stator
The facewidth of the suspension tooth is identical.
3. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 2, which is characterized in that described
The facewidth of second rotor tooth is less than the facewidth of the first rotor tooth or the third trochanter tooth.
4. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 2 or 3, which is characterized in that
The facewidth of the torque tooth is less than the facewidth of the suspension tooth.
5. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 4, which is characterized in that described
The number of teeth of torque tooth is greater than the number of teeth of the suspension tooth.
6. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 5, which is characterized in that described
The number of teeth of suspension tooth is 6, and the number of teeth of the torque tooth is 9.
7. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 1, which is characterized in that described
The second magnetism-isolating loop, the third trochanter tooth and second rotor tooth are provided between the first rotor tooth and second rotor tooth
It is provided with second magnetism-isolating loop, is provided with third magnetism-isolating loop between second rotor tooth and the rotor body.
8. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 7, which is characterized in that described
The material of first magnetism-isolating loop, second magnetism-isolating loop and the third magnetism-isolating loop is aluminium.
9. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 1, which is characterized in that described
Displacement sensor, institute's displacement sensors and controller Electricity Federation are provided on first suspension stator and the second suspension stator
It connects, the controller is also electrically connected with the suspending windings.
10. suspension tooth external outer rotor bearing-free switch reluctance motor according to claim 1, which is characterized in that institute
Permanent magnetism set is stated to be made of rare-earth permanent magnet or ferrite permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149124.2U CN209120021U (en) | 2018-12-17 | 2018-12-17 | A kind of suspension tooth external outer rotor bearing-free switch reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822149124.2U CN209120021U (en) | 2018-12-17 | 2018-12-17 | A kind of suspension tooth external outer rotor bearing-free switch reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209120021U true CN209120021U (en) | 2019-07-16 |
Family
ID=67208357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822149124.2U Expired - Fee Related CN209120021U (en) | 2018-12-17 | 2018-12-17 | A kind of suspension tooth external outer rotor bearing-free switch reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209120021U (en) |
-
2018
- 2018-12-17 CN CN201822149124.2U patent/CN209120021U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 |