CN107124054A - Consequent pole permanent magnet motor and its rotor - Google Patents
Consequent pole permanent magnet motor and its rotor Download PDFInfo
- Publication number
- CN107124054A CN107124054A CN201710516311.7A CN201710516311A CN107124054A CN 107124054 A CN107124054 A CN 107124054A CN 201710516311 A CN201710516311 A CN 201710516311A CN 107124054 A CN107124054 A CN 107124054A
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- China
- Prior art keywords
- pole
- alternately
- rotor
- guiding groove
- permanent magnet
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2746—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets arranged with the same polarity, e.g. consequent pole type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of Consequent pole permanent magnet motor and its rotor, the rotor of Consequent pole permanent magnet motor includes alternately pole, and alternately pole is provided with guiding groove；Along the circumference of rotor, alternately the stage casing of pole is between two sides section of alternately pole, fluting density of the fluting density more than the alternately stage casing of pole of the side section of alternating pole；Density of slotting is the mean breadth of guiding groove in unit length along the chord length direction of the alternately arcuate structure of pole.The rotor of above-mentioned Consequent pole permanent magnet motor, improves the air gap density that the magnetic line of force is formed in the stage casing of alternately pole, improves adjacent permanent-magnet pole and the alternately symmetry of the magnetic density distribution of pole, reduces the second harmonic aberration rate of back-emf, reduce core loss.
Description
Technical field
The present invention relates to technical field of motors, more specifically to a kind of Consequent pole permanent magnet motor and its rotor.
Background technology
The rotor of Consequent pole permanent magnet motor has the permanent-magnet pole circumferentially distributed alternately along rotor and alternating pole, circumferential along rotor
The air gap density at the middle part of permanent-magnet pole is larger, smaller, i.e., the adjacent permanent magnetism of the air gap density along the middle part of rotor circumference alternating pole
The symmetry of pole and alternately pole is poor so that back-emf has larger second harmonic aberration rate, causes larger core loss；
Larger vibration is produced when also resulting in motor operation.
Further, since permanent magnet is not present on alternately extremely, lack the constraint for the magnetic line of force, quadrature axis armature reaction is easier to
Ground changes the trend of the magnetic line of force, causes magnetic force line distortion, larger torque pulsation is had during motor operation.
In summary, the rotor of Consequent pole permanent magnet motor how is designed, to reduce the second harmonic aberration rate of back-emf, drop
Low core loss, is current those skilled in the art's urgent problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of rotor of Consequent pole permanent magnet motor, distorted with the second harmonic for reducing back-emf
Rate, reduces core loss.It is an object of the invention to provide a kind of Consequent pole permanent magnet motor with above-mentioned rotor.
To achieve these goals, the present invention provides following technical scheme：
A kind of rotor of Consequent pole permanent magnet motor, including alternately pole, the alternately pole are provided with guiding groove；
Along the circumference of rotor, the stage casing of the alternately pole is located between two sides section of the alternately pole, the alternately pole
Side section fluting density be more than it is described replace pole stage casing fluting density；
The fluting density is the guiding groove in unit length along the chord length direction of the alternately arcuate structure of pole
Mean breadth.
Preferably, the magnetic line of force of the guiding groove along its position moves towards extension.
Preferably, the guiding groove is provided only on two sides section of the alternately pole.
Preferably, the guiding groove is provided only on the side section of the alternately pole.
Preferably, two sides section of the alternately pole is respectively the alternately side of pole first section and alternately pole tow side section；Along institute
The direction of rotation of rotor is stated, the side of pole first section that alternately replaces described in pole is located at before the alternately pole tow side section
Side, the guiding groove is provided only on the alternately side of pole first section.
Preferably, guiding groove described in any two is equal close to the inner distance away from the rotor axis of rotor axis.
Preferably, the fluting density of the alternately pole is not more than 0.35.
Preferably, the width of the guiding groove is more than 0.5mm.
Preferably, the guiding groove is opened on the outer wall of the rotor.
Preferably, the guiding groove is arranged between the outer wall of the rotor and inwall.
Preferably, non-magnetic part is filled with the guiding groove.
Preferably, the permanent magnet of the rotor has rare earth element.
The rotor of Consequent pole permanent magnet motor based on above-mentioned offer, present invention also offers a kind of Consequent pole permanent magnet motor,
The Consequent pole permanent magnet motor includes rotor, and the rotor is the rotor described in above-mentioned any one.
In the rotor for the Consequent pole permanent magnet motor that the present invention is provided, guiding groove is compared with the soft magnetic materials of rotor, guiding groove
Magnetic resistance it is larger, and the magnetic line of force can select to pass through from the less place of magnetic resistance, i.e., the magnetic line of force can select the ground of never guiding groove
Side passes through, because the fluting density of two sides section of alternating pole is all higher than the fluting density in the alternately stage casing of pole, then most of magnetic
The line of force can pass through in the stage casing of alternately pole, improve the air gap density that the magnetic line of force is formed in the stage casing of alternately pole, then improve phase
Adjacent permanent-magnet pole and the symmetry of the magnetic density distribution of alternating pole, so as to reduce the second harmonic aberration rate of back-emf, are reduced
Core loss；Meanwhile, also reduce the vibration produced during motor operation.
Meanwhile, the rotor for the Consequent pole permanent magnet motor that the present invention is provided, due to being provided with guiding groove, guiding on alternately extremely
Groove is compared with the soft magnetic materials of rotor, and the magnetic resistance of guiding groove is larger, then guiding groove adds the magnetic resistance of quadrature axis magnetic circuit, weakens friendship
The change that armature axis reaction is moved towards to the magnetic line of force, that is, reduce the influence that quadrature axis armature reaction is distributed to the magnetic line of force, it is to avoid magnetic
The line of force distorts, and it also avoid making motor produce larger torque pulsation because of magnetic force line distortion.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of structural representation of the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention；
Fig. 2 is another structural representation of the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention；
What Fig. 3 provided for motor and prior art using the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention
Comparison diagram of the Consequent pole permanent magnet motor on second harmonic aberration rate；
What Fig. 4 provided for motor and prior art using the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention
Comparison diagram of the Consequent pole permanent magnet motor on iron loss；
What Fig. 5 provided for motor and prior art using the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention
Comparison diagram of the Consequent pole permanent magnet motor on torque.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1-2, the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention, including along the circumferential phase of rotor
Between the alternating pole 2 that is distributed and permanent-magnet pole 1, wherein, alternately pole 2 is provided with guiding groove 4, and the alternately fluting density of the side section of pole 2
More than the fluting density in the alternately stage casing of pole 2, the fluting density is along the chord length direction of the alternately arcuate structure of pole 2, in unit
The mean breadth of guiding groove 4 in length.
It is understood that along the circumference of rotor, alternately the stage casing of pole 2 is between two sides section of alternately pole 2.Alternately
The chord length direction of the arcuate structure of pole 2 is the width of alternately pole 2, is also the width of guiding groove 4.As shown in figure 1,
Alternately the width of pole 2 is L, and the width of guiding groove 4 is W.
If alternately the width sum of the upper all guiding grooves 4 of side section of pole 2 is (when drawing in the alternately side section of pole 2
When guide groove 4 is one, refer to the width of a guiding groove 4) it is W1, alternately the width of the side section of pole 2 is L1, then alternately pole 2
The fluting density of side section is W1/L1。
If alternately the width sum of the upper all guiding grooves 4 of another side section of pole 2 is (when in the alternately side section of pole 2
When guiding groove 4 is one, refer to the width of a guiding groove 4) it is W2, alternately the width of the side section of pole 2 is L2, then alternately pole 2
The side section fluting density be W2/L2。
If alternately the width sum of guiding groove 4 all on the stage casing of pole 2 is (when the guiding groove 4 on the alternately stage casing of pole 2 is
At one, refer to the width of a guiding groove 4) it is W3, alternately the width in the stage casing of pole 2 is L3, then alternately the stage casing of pole 2 is opened
Groove density is W3/L3。
If alternately the width sum of guiding groove 4 all on pole 2 (when the guiding groove 4 on alternately pole 2 is one, refers to
The width of one guiding groove 4) it is W4, alternately the width of pole 2 is L, then alternately the fluting density of pole 2 is W4/L。
Guiding groove 4 on one alternating pole 2 can be one, or two or more, the guiding groove on an alternating pole 2
4 be two or more when, prioritizing selection any one alternating pole 2 in, the width of any two guiding groove 4 is equal, now, guiding groove
4 number is more, i.e. the closeness of guiding groove 4 is bigger, and fluting density is bigger.
When the guiding groove 4 on an alternating pole 2 is two or more, prioritizing selection is on alternately pole 2, and guiding groove 4 is along turning
The circumference of son is sequentially distributed.
For the ease of description, alternately the stage casing of pole 2 is alternately pole stage casing 23, and alternately two sides section of pole 2 is respectively to replace
The side of pole first section 21 and alternately pole tow side section 22.Along the circumference of rotor, the alternately side of pole first section 21, alternately pole stage casing 23 and friendship
For pole tow side section 22 along the circumferentially distributed of rotor.
The rotor of above-mentioned Consequent pole permanent magnet motor is overrided to form by diskette, and the rotor is provided with mounting groove, and permanent magnet 3 is pacified
In mounting groove, the polarity of permanent magnet 3 towards the rotor axis of permanent-magnet pole 1 is same polarity.Two adjacent mounting groove quilts
Soft magnetic materials is separated, and the soft magnetic materials is magnetized to alternately pole 2 by adjacent permanent magnet 3.
In the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention, guiding groove 4 compared with the soft magnetic materials of rotor,
The magnetic resistance of guiding groove 4 is larger, and the magnetic line of force can select to pass through from the less place of magnetic resistance, i.e., the magnetic line of force can select never to guide
The place of groove 4 passes through, because the fluting density of two sides section along the circumferential alternately pole 2 of rotor is all higher than the stage casing of alternately pole 2
Fluting density, then most of magnetic line of force can pass through in the stage casing of alternately pole 2, improve stage casing shape of the magnetic line of force in alternately pole 2
Into larger air gap density, then adjacent permanent-magnet pole 1 and the alternately symmetry of the magnetic density distribution of pole 2 are improved, so as to reduce
The second harmonic aberration rate of back-emf, reduces core loss；Meanwhile, also reduce the vibration produced during motor operation.
Meanwhile, the rotor of Consequent pole permanent magnet motor provided in an embodiment of the present invention, due to being provided with guiding on alternately pole 2
Groove 4, guiding groove 4 is compared with the soft magnetic materials of rotor, and the magnetic resistance of guiding groove 4 is larger, then guiding groove 4 adds the magnetic of quadrature axis magnetic circuit
Resistance, weakens the change that quadrature axis armature reaction is moved towards to the magnetic line of force, that is, reduces the shadow that quadrature axis armature reaction is distributed to the magnetic line of force
Ring, it is to avoid magnetic force line distortion, it also avoid making because of magnetic force line distortion motor produce larger torque pulsation.
In the rotor of above-mentioned Consequent pole permanent magnet motor, permanent-magnet pole 1 and alternately pole 2 equal at least two, such as He of permanent-magnet pole 1
Alternating pole 2 equal three, four or six etc..
Produce and manufacture for convenience, the two ends that axially penetrate through alternately pole 2 of the above-mentioned guiding groove 4 along rotor.
Preferably, the magnetic line of force of the above-mentioned guiding groove 4 along its position moves towards extension.So, 4 pairs of main magnetic of guiding groove can be made
The magnetic resistance increase on road reduces as far as possible, it is ensured that the service behaviour of motor.
The fluting density at middle part of above-mentioned alternately pole 2 can be zero, i.e., alternately the stage casing of pole 2 without guiding groove 4.
The side section of above-mentioned alternately pole 2 is two, and the fluting density that two sides section of above-mentioned alternately pole 2 may be selected is all higher than
Zero, i.e., alternately two sides section of pole 2 is equipped with guiding groove 4；The fluting density that the side section of alternately pole 2 also may be selected is zero,
Alternately the fluting density of another side section of pole 2 is more than zero, i.e., alternately the side section of pole 2 is provided with guiding groove 4.
In order to solve the above-mentioned technical problem, pole first is replaced in direction of rotation of the prioritizing selection along rotor, an alternating pole 2
Side section 21 is located at the front side of alternately pole tow side section 22, and guiding groove 4 is provided only on the alternately side of pole first section 21.
Above-mentioned set-up mode, it is therefore prevented that the magnetic line of force is assembled to direction of rotation causes the maximum air gap magnetic of alternately pole 2 is close to deviate
The center of alternating pole 2 so that the detection of rotor-position is more accurate.
Certainly, above-mentioned guiding groove 4 also may be selected and is provided only on alternately pole tow side section 22, it is not limited to above-mentioned implementation
Example.
Preferably, any two guiding groove 4 is equal close to the inner distance away from rotor axis of rotor axis, so sets
Influence of the guiding groove 4 to main magnetic circuit magnetic resistance can be reduced, to ensure the normal operation of rotor.
It is understood that when the inner inner face of guiding groove 4 is plane, the inner of guiding groove 4 is away from rotor axis
Distance can be inner face distance of the middle part away from rotor axis, or inner face distance of the side away from rotor axis；When drawing
When the inner inner face of guide groove 4 is cambered surface, the inner of guiding groove 4 is on same circle, the axis of the center of circle of the circle in rotor
On.
It should be noted that along the circumference of rotor, the middle part of the inner face of guiding groove 4 is located at the inner face of guiding groove 4
Between two sides.
In the above-mentioned alternately rotor of pole permanent magnet, fluting density is bigger, and the close mutation of magnetic on rotor outer periphery will be smaller.
Preferably, the fluting density of above-mentioned alternately pole 2 is not more than 0.35.So, the fluting density control by pole 2 is replaced is passed through
System will not be allowed in the range of this motor exert oneself it is excessive reduce, and farthest have adjusted the magnetic line of force alternately on pole 2
Distribution.
Certainly, the fluting density that alternately pole 2 also may be selected is other numerical value, it is not limited to above-described embodiment.
Process for convenience, the width of above-mentioned guiding groove 4 is more than 0.5mm.The width of guiding groove 4 is controlled for convenience, will
The width of guiding groove 4 and the diskette thickness of rotor are contrasted, specifically, and the width of guiding groove 4 is more than the thickness of diskette.
Further, above-mentioned diskette is silicon steel sheet.
For the higher limit of the width of guiding groove 4, it is designed according to actual needs, as long as ensureing that normally operation is rotor
Can, the embodiment of the present invention is not limited this.
In the rotor of above-mentioned Consequent pole permanent magnet motor, guiding groove 4 can have the opening away from rotor axis, i.e. guiding groove 4
It is opened on the outer wall of rotor；Also guiding groove 4 may be selected and is arranged on rotor without the opening away from rotor axis, i.e. guiding groove 4
Between outer wall and inwall, as depicted in figs. 1 and 2.
Non-magnetic part can be filled in above-mentioned guiding groove 4, any part can be also not filled with.When interior filled with non-in guiding groove 4
During magnetic conductive part, for the specific material of non-magnetic part, selected according to actual needs, the embodiment of the present invention is not limited this
It is fixed.
Preferably, the permanent magnet 3 of above-mentioned permanent-magnet pole 1 has rare earth element.So, the performance of permanent magnet 3 is effectively increased.
For the type of rare earth element, it is designed according to actual needs, the embodiment of the present invention is not limited this.
In the rotor of above-mentioned Consequent pole permanent magnet motor, for the shape of guiding groove 4, it can be designed according to actual needs,
Such as the cross section of guiding groove 4 is triangular in shape, quadrangle, kidney-shaped.Further, the cross section of guiding groove 4 is rectangle.Can
With understanding, the cross section of guiding groove 4 is perpendicular to rotor axis.
When guiding groove 4 is irregular shape, the width that could dictate that a certain position of guiding groove 4 is the width of guiding groove 4,
For example, regulation guiding groove 4 is close to the width that the inner width of rotor axis is guiding groove 4, or regulation guiding groove 4 is away from rotor
The width of the outer end of axis is width of guiding groove 4 etc..
For the advantage of the rotor of the above-mentioned Consequent pole permanent magnet motor of explanation become apparent, using above-mentioned alternately pole Permanent Magnet and Electric
The motor of the rotor of machine, is tested, as in Figure 3-5 with existing Consequent pole permanent magnet motor under environment of the same race.Fig. 3-5
In, existing motor is existing Consequent pole permanent magnet motor, and motor of the present invention is to use alternating provided in an embodiment of the present invention
The motor of the rotor of pole permanent magnet motor.
Specifically, as shown in figure 3, obtaining the second harmonic aberration rate comparison diagram of back-emf, it can be seen that present invention electricity
The second harmonic aberration rate of the back-emf of machine has obtained effective reduction and improvement；As shown in figure 4, iron loss comparison diagram is obtained, can
It is effectively improved with the iron loss for finding out motor of the present invention；As shown in figure 5, obtaining the comparison of wave shape figure of torque, it can see
The pulsation for going out the torque of motor of the present invention is improved.
It should be noted that in Fig. 5, the curve with stain represents that the torque of motor of the present invention changes with time, without
The curve of stain represents that the torque of existing motor changes with time.
The rotor of the Consequent pole permanent magnet motor provided based on above-described embodiment, the embodiment of the present invention additionally provides a kind of alternating
Pole permanent magnet motor, the Consequent pole permanent magnet motor includes rotor, and the rotor is the Consequent pole permanent magnet motor described in above-described embodiment
Rotor.
Because the rotor of the Consequent pole permanent magnet motor of above-described embodiment offer has above-mentioned technique effect, above-mentioned alternately pole is forever
Magneto has the rotor of above-mentioned Consequent pole permanent magnet motor, then above-mentioned Consequent pole permanent magnet motor also has correspondingly technique effect,
Repeat no more herein.
The foregoing description of the disclosed embodiments, enables those skilled in the art to realize or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and generic principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with features of novelty with principles disclosed herein most wide
Scope.
Claims (13)
1. a kind of rotor of Consequent pole permanent magnet motor, including alternately pole (2), it is characterised in that alternately pole (2), which are provided with, draws
Guide groove (4)；
Along the circumference of rotor, the stage casing of alternately pole (2) is located between two sides section of alternately pole (2), the alternating
The fluting density of the side section of pole (2) is more than the fluting density in the alternately stage casing of pole (2)；
The fluting density is the guiding groove in unit length along the chord length direction of the alternately arcuate structure of pole (2)
(4) mean breadth.
2. rotor according to claim 1, it is characterised in that the guiding groove (4) is walked along the magnetic line of force of its position
To extension.
3. rotor according to claim 1, it is characterised in that the guiding groove (4) is provided only on alternately pole (2)
Two side sections.
4. rotor according to claim 1, it is characterised in that the guiding groove (4) is provided only on alternately pole (2)
One side section.
5. rotor according to claim 4, it is characterised in that
Two sides section of alternately pole (2) is respectively the alternately side of pole first section (21) and alternately pole tow side section (22)；
Along the direction of rotation of the rotor, the side of pole first section (21) that alternately replaces described in pole (2) is located at described hand over
For the front side of pole tow side section (22), the guiding groove (4) is provided only on the alternately side of pole first section (21).
6. rotor according to claim 1, it is characterised in that guiding groove described in any two (4) is close to rotor axis
The inner distance away from the rotor axis is equal.
7. rotor according to claim 1, it is characterised in that the fluting density of alternately pole (2) is not more than 0.35.
8. rotor according to claim 1, it is characterised in that the width of the guiding groove (4) is more than 0.5mm.
9. rotor according to claim 1, it is characterised in that the guiding groove (4) is opened on the outer wall of the rotor.
10. rotor according to claim 1, it is characterised in that the guiding groove (4) be arranged on the rotor outer wall and
Between inwall.
11. rotor according to claim 1, it is characterised in that non-magnetic part is filled with the guiding groove (4).
12. rotor according to claim 1, it is characterised in that the permanent magnet (3) of the rotor has rare earth element.
13. a kind of Consequent pole permanent magnet motor, including rotor, it is characterised in that the rotor is as any in claim 1-12
Rotor described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516311.7A CN107124054B (en) | 2017-06-29 | 2017-06-29 | Alternating pole permanent magnet motor and rotor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516311.7A CN107124054B (en) | 2017-06-29 | 2017-06-29 | Alternating pole permanent magnet motor and rotor thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107124054A true CN107124054A (en) | 2017-09-01 |
| CN107124054B CN107124054B (en) | 2023-04-25 |
Family
ID=59719763
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710516311.7A Active CN107124054B (en) | 2017-06-29 | 2017-06-29 | Alternating pole permanent magnet motor and rotor thereof |
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| Country | Link |
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| CN (1) | CN107124054B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033948A (en) * | 2017-09-05 | 2020-04-17 | 三菱电机株式会社 | Alternating pole rotor, motor, compressor, blower, and air conditioner |
| EP3813231A4 (en) * | 2018-06-25 | 2021-06-16 | Mitsubishi Electric Corporation | Rotor, electric motor, fan, and air conditioner |
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| CN206948062U (en) * | 2017-06-29 | 2018-01-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Consequent pole permanent magnet motor and its rotor |
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| US20100148612A1 (en) * | 2008-12-17 | 2010-06-17 | Asmo Co., Ltd. | Brushless motor |
| JP2011259692A (en) * | 2010-05-13 | 2011-12-22 | Denso Corp | Rotor of rotary electric machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033948A (en) * | 2017-09-05 | 2020-04-17 | 三菱电机株式会社 | Alternating pole rotor, motor, compressor, blower, and air conditioner |
| CN111033948B (en) * | 2017-09-05 | 2022-08-05 | 三菱电机株式会社 | Alternating pole rotor, motor, compressor, blower, and air conditioner |
| EP3813231A4 (en) * | 2018-06-25 | 2021-06-16 | Mitsubishi Electric Corporation | Rotor, electric motor, fan, and air conditioner |
| US11552515B2 (en) | 2018-06-25 | 2023-01-10 | Mitsubishi Electric Corporation | Rotor, motor, fan, and air conditioner |
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| Publication number | Publication date |
|---|---|
| CN107124054B (en) | 2023-04-25 |
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