CN107968501A - Motor rotor and permanent magnet motor - Google Patents
Motor rotor and permanent magnet motor Download PDFInfo
- Publication number
- CN107968501A CN107968501A CN201711388521.9A CN201711388521A CN107968501A CN 107968501 A CN107968501 A CN 107968501A CN 201711388521 A CN201711388521 A CN 201711388521A CN 107968501 A CN107968501 A CN 107968501A
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- Prior art keywords
- permanent magnet
- mounting groove
- rotor
- motor
- intersection point
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005389 magnetism Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000005347 demagnetization Effects 0.000 description 14
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a motor rotor and a permanent magnet motor. The motor rotor comprises a rotor core (1), a first permanent magnet (2) and a second permanent magnet (3), wherein the first permanent magnet (2) and the second permanent magnet (3) are arranged in the rotor core (1), the first permanent magnet (2) is located at the center of a magnetic pole where the first permanent magnet (2) is located, the second permanent magnet (3) is arranged on two sides of the first permanent magnet (2), and the coercive force of the first permanent magnet (2) is lower than that of the second permanent magnet (3). According to the motor rotor disclosed by the invention, the magnetizing and demagnetizing difficulty can be effectively reduced, the field regulating range of the motor is enlarged, and the motor efficiency is improved.
Description
Technical field
The invention belongs to technical field of motors, and in particular to a kind of rotor and magneto.
Background technology
Conventional permanent magnet motor provides magnetic flux by permanent magnet, but permanent magnet provides magnetic field and fixes, and motor internal magnetic field is difficult to
Adjust, efficiency when making the magneto be difficult to take into account high and low frequency.And in the case where power supply voltage is fixed, limit
The maximum running frequency of motor.At present, most magneto can only be controlled by weak magnetic expands range of operation, but weak magnetic controls
In the presence of increase copper olse, reduce electric efficiency, speed adjustable range is limited the problems such as.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to provide a kind of rotor and magneto, can effectively drop
It is low to fill demagnetization difficulty, increase motor adjustable magnetic scope, improve electric efficiency.
To solve the above-mentioned problems, the present invention provides a kind of rotor, including rotor core and is arranged on rotor core
Interior the first permanent magnet and the second permanent magnet, the pole center position of magnetic pole where the first permanent magnet is located at first permanent magnet,
The both sides of first permanent magnet are provided with the second permanent magnet, and the coercivity of the first permanent magnet is less than the coercivity of the second permanent magnet.
Preferably, the first permanent magnet is arranged in yi word pattern, and the first permanent magnet is perpendicular to magnetic pole where first permanent magnet
D axis.
Preferably, three permanent magnet is additionally provided with rotor core, three permanent magnet is located at the second permanent magnet away from first
The side of permanent magnet, the coercivity of the first permanent magnet are less than the coercivity of three permanent magnet.
Preferably, the second permanent magnet and the V-shaped arrangement of three permanent magnet, and the first permanent magnetism is arranged on relative to d axial symmetry
The both sides of body.
Preferably, the width-thickness ratio of the first permanent magnet of each magnetic pole is 1.9~4.6；And/or second permanent magnet it is generous
Than for 1.8~4；And/or the width-thickness ratio of three permanent magnet is 2.8~5.5.
Preferably, rotor core is provided with the first mounting groove, and the first permanent magnet is installed in the first mounting groove, the first installation
Minimum range L between the madial wall of groove and the central axis of rotor is 0.65~0.85R, and wherein R is rotor outer circle half
Footpath.
Preferably, the angle theta 1 between the first permanent magnet and the second permanent magnet is 75 ° of+π/(6*p)~75 °+π/(2*p)；
And/or the second angle theta 2 between permanent magnet and three permanent magnet is 30 ° of+π/(6*p)~30 °+π/(2*p)；P is motor pole
Logarithm.
Preferably, rotor core is provided with the first mounting groove, and the first permanent magnet is installed in the first mounting groove, the first installation
Angle theta 3 between two outer dead centres of the remote rotor center of groove and the line of rotor center is 0.10* π/p~0.35* π/p；
P is motor number of pole-pairs.
Preferably, rotor core is provided with the second mounting groove and the 3rd mounting groove, and the second permanent magnet is arranged on the second installation
In groove, three permanent magnet is arranged in the 3rd mounting groove, the second mounting groove and the 3rd mounting groove formation V-groove, under each magnetic pole,
It is the first intersection point positioned at the second mounting groove of first the first side of permanent magnet and the intersection point of the 3rd mounting groove, positioned at the first permanent magnet
Second mounting groove of two sides and the intersection point of the 3rd mounting groove are that the second intersection point, the first intersection point and the line of rotor center and second are handed over
Angle theta 4 between point and the line of rotor center is 0.4* π/p~0.7* π/p；And/or first between intersection point and rotor center
Distance S be 0.4*R~0.8*R；P is motor number of pole-pairs, and R is rotor outer circle radius.
Preferably, rotor core is provided with the first mounting groove and the second mounting groove, and the first permanent magnet is installed on the first installation
In groove, the second permanent magnet is installed in the second mounting groove, minimum range d between the first mounting groove and the second mounting groove for 0~
2* δ, wherein δ are the unilateral air gap of motor.
Preferably, between two adjacent magnetic poles, the distance between adjacent two three permanent magnets for δ 0.65~
1.5 times, wherein δ is the unilateral air gap of motor.
Preferably, rotor core is provided with the 3rd mounting groove, and three permanent magnet is arranged in the 3rd mounting groove, adjacent
Between two magnetic poles, dowel is provided between adjacent two the 3rd mounting grooves.
According to another aspect of the present invention, there is provided a kind of magneto, including rotor, the rotor are above-mentioned
Rotor.
Rotor provided by the invention, including rotor core and the first permanent magnet for being arranged in the rotor core and
Second permanent magnet, the pole center position of magnetic pole, first permanent magnetism where first permanent magnet is located at first permanent magnet
The both sides of body are provided with second permanent magnet, and the coercivity of first permanent magnet is less than the coercive of second permanent magnet
Power.For the rotor in motor low-frequency operation, low-coercivity permanent magnet is positive to increase magnetic, can improve winding back emf, improve electricity
Machine low frequency efficiency；When motor high frequency is run, the reverse weak magnetic of low-coercivity permanent magnet, reduces winding back emf, increases motor high frequency
Range of operation.And demagnetization current size can be filled by control, low-coercivity permanent magnet is reached the different states that magnetizes, realize
Multistage adjustable magnetic, realizes different degrees of adjustable magnetic under different rotating speeds, increases motor adjustable magnetic scope, enables motor in wider frequency
On operate in best efficiency point.In the magnetic pole of magnetic pole where being located at first permanent magnet due to the first relatively low permanent magnet of coercivity
Heart position, therefore can reduce motor fills demagnetization difficulty, significantly reduces the relatively low permanent magnet of coercivity and fills demagnetization current size.
Brief description of the drawings
Fig. 1 is the structure chart of a magnetic pole of the rotor of the embodiment of the present invention；
Fig. 2 is the structural relation figure of each permanent magnet of a magnetic pole of the rotor of the embodiment of the present invention；
Fig. 3 is that the rotor of the embodiment of the present invention removes the structure diagram after permanent magnet.
Reference numeral is expressed as：
1st, rotor core；2nd, the first permanent magnet；3rd, the second permanent magnet；4th, three permanent magnet；5th, the first mounting groove；6th, second
Mounting groove；7th, the 3rd mounting groove；8th, dowel.
Embodiment
With reference to shown in referring to Fig. 1 to 3, according to an embodiment of the invention, rotor includes rotor core 1 and is arranged on to turn
The first permanent magnet 2 and the second permanent magnet 3 in sub- iron core 1, the first permanent magnet 2 are located at the magnetic of the 2 place magnetic pole of the first permanent magnet
Pole center, the both sides of the first permanent magnet 2 are provided with the second permanent magnet 3, and the coercivity of the first permanent magnet 2 is less than the second permanent magnetism
The coercivity of body 3.
For the rotor in motor low-frequency operation, the relatively low permanent magnet of coercivity is positive to increase magnetic, and it is anti-electric to improve motor
Gesture, improves motor low frequency efficiency；When motor high frequency is run, the reverse weak magnetic of the relatively low permanent magnet of coercivity, reduces winding back emf,
Increase motor high frequency range of operation.And demagnetization current size can be filled by control, the permanent magnet for making coercivity relatively low reaches not
The same state that magnetizes, realizes multistage adjustable magnetic, different degrees of adjustable magnetic is realized under different rotating speeds, increase motor adjustable magnetic scope, make
Motor can operate in best efficiency point in wider frequency.Since the first relatively low permanent magnet 2 of coercivity is located at this first forever
The pole center position of 2 place magnetic pole of magnet, therefore can reduce motor fills demagnetization difficulty, and it is relatively low significantly to reduce coercivity
Permanent magnet fills demagnetization current size.
Preferably, the first permanent magnet 2 is rectangle, and is arranged in yi word pattern, and the first permanent magnet 2 is perpendicular to first permanent magnetism
The d axis of 2 place magnetic pole of body, so that the structure design of the first permanent magnet 2 is more reasonable, reduces the first permanent magnet 2 and exists
Volume on rotor radial direction takes, and the permanent magnet dosage of the second higher permanent magnet 3 of increase coercivity, improves turning for motor
Square and power density, while more efficiently reduce motor when adjusting magnetic field fills demagnetization current size, reduces motor and fills demagnetization
Difficulty, realizes that motor internal magnetic field real-time synchronization is adjusted.
Preferably, three permanent magnet 4 is additionally provided with rotor core 1, it is remote that three permanent magnet 4 is located at the second permanent magnet 3
The side of first permanent magnet 2, the coercivity of the first permanent magnet 2 are less than the coercivity of three permanent magnet 4.The three permanent magnet 4 can
To be engaged with the second permanent magnet 2, the coercitive feature of the first permanent magnet 2 is higher than using coercivity, further increase is high rectifys
Stupid power permanent magnet dosage, improves torque and the power density of motor.
Preferably, 4 V-shaped arrangement of the second permanent magnet 3 and three permanent magnet, and it is arranged on first forever relative to d axial symmetry
The both sides of magnet 2, so as to more efficiently increase permanent magnet effective volume, increase High-coercivity Permanent Magnets dosage, improve motor
Torque and power density.In addition, the higher permanent magnet of two groups of coercivitys is distributed in the relatively low permanent magnet two of coercivity in " V " type
Side, by increasing capacitance it is possible to increase the arrangement size of permanent magnet；The wherein higher magnet size bigger of outside coercivity, can be by magnetic field concentration
To pole center, the sine degree in motor gas-gap magnetic field is improved, reduces motor torque ripple.
Preferably, the width-thickness ratio of the first permanent magnet 2 of each magnetic pole is 1.9~4.6；And/or second permanent magnet 3 width
Thickness rate is 1.8~4；And/or the width-thickness ratio of three permanent magnet 4 is 2.8~5.5.Second permanent magnet 3 He higher to coercivity
Three permanent magnet 4 sets suitable width-thickness ratio, can reduce in the case where ensureing enough magnetic field intensities, anti-demagnetization capability
Permanent magnet dosage；First permanent magnet 2 relatively low to coercivity sets suitable width-thickness ratio, can ensure low during motor normal operation
Coercivity permanent magnet state does not change, and lifts the working performance of rotor.Each permanent magnet herein is with rotor axial direction
For length direction, for rotors normal in the section of axial direction, the extending direction on the longer side of permanent magnet is width, compared with
The extending direction on short side is thickness direction.
Preferably, rotor core 1 is provided with the first mounting groove 5, and the first permanent magnet 2 is installed in the first mounting groove 5, and first
Minimum range L between the madial wall of mounting groove 5 and the central axis of rotor is 0.65~0.85R, and wherein R is outside rotor
Radius of circle.Control the madial wall of the first mounting groove 5 and the central shaft of rotor where relatively low the first permanent magnet 2 of coercivity
Minimum range between line, in the case of can meeting requirement of mechanical strength ensureing rotor, demagnetization difficulty is filled in reduction.
Preferably, the angle theta 1 between the first permanent magnet 2 and the second permanent magnet 3 is 75 ° of+π/(6*p)~75 °+π/(2*
p)；And/or the second angle theta 2 between permanent magnet 3 and three permanent magnet 4 is 30 ° of+π/(6*p)~30 °+π/(2*p)；P is electricity
Machine number of pole-pairs.Angle between the relatively low permanent magnet of coercivity and the higher permanent magnet of adjacent coercivity, can influence low coercive
State during power permanent magnet normal operation, the too small permanent magnet that coercivity can be made relatively low of angle easily produce local demagnetization, angle
Arrangement space big then that the higher permanent magnet of coercivity can be reduced.Therefore suitable angle is set, can ensure coercivity compared with
On the basis of the arrangement space of high permanent magnet, effectively avoid the problem that the relatively low permanent magnet of coercivity produces local demagnetization, or
Person reduces the local demagnetization that the relatively low permanent magnet of coercivity produces.The permanent magnet higher to two adjacent coercivitys sets suitable
Angle, can more efficiently increase permanent magnet effective volume, increase the flux density and power density of motor.
Preferably, the folder between two outer dead centres of the remote rotor center of the first mounting groove 5 and the line of rotor center
Angle θ 3 is 0.10* π/p~0.35* π/p；P is motor number of pole-pairs.In general, the first mounting groove 5 is rectangular channel or trapezoidal
Groove, two outer dead centres herein refer to two vertex for being located at outside in the radial direction of rectangular channel or dovetail groove.Pass through choosing
The central angle between relatively low two outer dead centres of permanent magnet trough of suitable coercivity is taken, can be according to the adjustable magnetic for needing setting motor
Ability.
Preferably, rotor core 1 is additionally provided with the second mounting groove 6 and the 3rd mounting groove 7, and the second permanent magnet 3 is arranged on
In two mounting grooves 6, three permanent magnet 4 is arranged in the 3rd mounting groove 7, and the second mounting groove 6 and the 3rd mounting groove 7 form V-groove,
It is the first intersection point positioned at the second mounting groove 6 of 2 first side of the first permanent magnet and the intersection point of the 3rd mounting groove 7 under each magnetic pole, position
In the second mounting groove 6 of 2 second side of the first permanent magnet and the intersection point of the 3rd mounting groove 7 be the second intersection point, the first intersection point and rotor
Angle theta 4 between the line at center and the second intersection point and the line of rotor center is 0.4* π/p~0.7* π/p；And/or first
The distance between intersection point and rotor center S are 0.4*R~0.8*R；P is motor number of pole-pairs, and R is rotor outer circle radius.
Preferably, rotor core 1 is provided with the first mounting groove 5 and the second mounting groove 6, the first mounting groove 5 and the second installation
Minimum range d between groove 6 is 0~2* δ, and wherein δ is the unilateral air gap of motor.Due to the first mounting groove 5 and the second mounting groove 6 it
Between minimum range can influence the operating status of the relatively low permanent magnet of coercivity, therefore, set suitable d values to avoid coercive
The operating status of the higher permanent magnet of the power permanent magnet relatively low to coercivity affects greatly, and avoids the permanent magnetism that coercivity is relatively low
Body produces the problem of local demagnetization.
Preferably, between two adjacent magnetic poles, the distance between adjacent two three permanent magnets 4 for δ 0.65~
1.5 times, wherein δ is the unilateral air gap of motor.
Preferably, between two adjacent magnetic poles, dowel 8 is provided between adjacent two the 3rd mounting grooves 7, so that
It can strengthen the mechanical strength of rotor.
According to an embodiment of the invention, magneto includes rotor, which is above-mentioned rotor.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made within principle etc., should all be included in the protection scope of the present invention.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
On the premise of bright technical principle, some improvement and modification can also be made, these improvements and modifications also should be regarded as the guarantor of the present invention
Protect scope.
Claims (13)
- A kind of 1. rotor, it is characterised in that including rotor core (1) and be arranged in the rotor core (1) first Permanent magnet (2) and the second permanent magnet (3), first permanent magnet (2) are located in the magnetic pole of first permanent magnet (2) place magnetic pole Heart position, the both sides of first permanent magnet (2) are provided with second permanent magnet (3), the coercive of first permanent magnet (2) Power is less than the coercivity of second permanent magnet (3).
- 2. rotor according to claim 1, it is characterised in that first permanent magnet (2) is rectangular, and described D axis of one permanent magnet (2) perpendicular to magnetic pole where first permanent magnet (2).
- 3. rotor according to claim 1 or 2, it is characterised in that be additionally provided with the 3rd in the rotor core (1) Permanent magnet (4), the three permanent magnet (4) are located at side of second permanent magnet (3) away from first permanent magnet (2), The coercivity of first permanent magnet (2) is less than the coercivity of the three permanent magnet (4).
- 4. rotor according to claim 3, it is characterised in that second permanent magnet (3) and the 3rd permanent magnetism Body (4) V-shaped arrangement, and it is arranged on relative to d axial symmetry the both sides of first permanent magnet (2).
- 5. rotor according to claim 3, it is characterised in that the width of first permanent magnet (2) of each magnetic pole Thickness rate is 1.9~4.6；And/or the width-thickness ratio of second permanent magnet (3) is 1.8~4；And/or the three permanent magnet (4) width-thickness ratio is 2.8~5.5.
- 6. rotor according to claim 1, it is characterised in that the rotor core (1) is provided with the first mounting groove (5), first permanent magnet (2) is installed in first mounting groove (5), the madial wall of first mounting groove (5) and institute It is 0.65~0.85R to state the minimum range L between the central axis of rotor, and wherein R is rotor outer circle radius.
- 7. rotor according to claim 4, it is characterised in that first permanent magnet (2) and second permanent magnetism Angle theta 1 between body (3) is 75 ° of+π/(6*p)~75 °+π/(2*p)；And/or second permanent magnet (3) and the described 3rd Angle theta 2 between permanent magnet (4) is 30 ° of+π/(6*p)~30 °+π/(2*p)；P is motor number of pole-pairs.
- 8. rotor according to claim 1, it is characterised in that the rotor core (1) is provided with the first mounting groove (5), first permanent magnet (2) is installed in first mounting groove (5), in the remote rotor of first mounting groove (5) Angle theta 3 between two outer dead centres of the heart and the line of the rotor center is 0.10* π/p~0.35* π/p；P is motor pole Logarithm.
- 9. rotor according to claim 3, it is characterised in that the rotor core (1) is provided with the second mounting groove (6) it is arranged on the 3rd mounting groove (7), second permanent magnet (3) in second mounting groove (6), the three permanent magnet (4) it is arranged in the 3rd mounting groove (7), second mounting groove (6) forms V-groove with the 3rd mounting groove (7), often Under one magnetic pole, second mounting groove (6) and the 3rd mounting groove (7) positioned at (2) first side of the first permanent magnet Intersection point is the first intersection point, second mounting groove (6) and the 3rd mounting groove positioned at (2) second side of the first permanent magnet (7) intersection point is the second intersection point, the line and second intersection point of first intersection point and rotor center and the rotor center Line between angle theta 4 be 0.4* π/p~0.7* π/p；And/or between first intersection point and the rotor center away from It is 0.4*R~0.8*R from S；P is motor number of pole-pairs, and R is rotor outer circle radius.
- 10. rotor according to claim 1, it is characterised in that the rotor core (1) is provided with the first mounting groove (5) it is installed on the second mounting groove (6), first permanent magnet (2) in first mounting groove (5), second permanent magnet (3) it is installed in second mounting groove (6), the minimum range d between first mounting groove (5) and the second mounting groove (6) For 0~2* δ, wherein δ is the unilateral air gap of motor.
- 11. rotor according to claim 3, it is characterised in that between two adjacent magnetic poles, adjacent two The distance between three permanent magnet (4) is 0.65~1.5 times of δ, and wherein δ is the unilateral air gap of motor.
- 12. rotor according to claim 3, it is characterised in that the rotor core (1) is provided with the 3rd mounting groove (7), the three permanent magnet (4) is arranged in the 3rd mounting groove (7), between two adjacent magnetic poles, adjacent two Dowel (8) is provided between 3rd mounting groove (7).
- 13. a kind of magneto, including rotor, it is characterised in that the rotor is any in claim 1 to 12 Rotor described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388521.9A CN107968501B (en) | 2017-12-21 | 2017-12-21 | Motor rotor and permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711388521.9A CN107968501B (en) | 2017-12-21 | 2017-12-21 | Motor rotor and permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107968501A true CN107968501A (en) | 2018-04-27 |
| CN107968501B CN107968501B (en) | 2024-04-23 |
Family
ID=61995666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711388521.9A Active CN107968501B (en) | 2017-12-21 | 2017-12-21 | Motor rotor and permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107968501B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030339A (en) * | 2019-12-16 | 2020-04-17 | 珠海格力电器股份有限公司 | Electric motor rotor and alternating-pole electric motor |
| CN111463940A (en) * | 2020-06-19 | 2020-07-28 | 宁波海特技术转移有限公司 | Built-in magnet steel permanent magnet motor rotor, motor and vehicle |
| CN112072811A (en) * | 2020-08-03 | 2020-12-11 | 东南大学 | Embedded-permanent magnet reluctance type mixed magnetic pole type memory motor |
| WO2021217671A1 (en) * | 2020-04-30 | 2021-11-04 | 华为技术有限公司 | Rotor, permanent magnet motor, motor driving system and vehicle |
| CN114123572A (en) * | 2021-11-12 | 2022-03-01 | 珠海格力电器股份有限公司 | Variable flux permanent magnet motor rotor and variable flux permanent magnet motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012023855A (en) * | 2010-07-14 | 2012-02-02 | Toyota Industries Corp | Permanent magnet embedded rotor and rotary electric machine |
| CN103036323A (en) * | 2011-09-29 | 2013-04-10 | 株式会社东芝 | Permanent magnet and motor and generator using the same |
| CN205377491U (en) * | 2015-12-29 | 2016-07-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Electric motor rotor and permanent -magnet machine |
| CN207782525U (en) * | 2017-12-21 | 2018-08-28 | 珠海格力电器股份有限公司 | Motor rotor and permanent magnet motor |
-
2017
- 2017-12-21 CN CN201711388521.9A patent/CN107968501B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012023855A (en) * | 2010-07-14 | 2012-02-02 | Toyota Industries Corp | Permanent magnet embedded rotor and rotary electric machine |
| CN103036323A (en) * | 2011-09-29 | 2013-04-10 | 株式会社东芝 | Permanent magnet and motor and generator using the same |
| CN205377491U (en) * | 2015-12-29 | 2016-07-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Electric motor rotor and permanent -magnet machine |
| CN207782525U (en) * | 2017-12-21 | 2018-08-28 | 珠海格力电器股份有限公司 | Motor rotor and permanent magnet motor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030339A (en) * | 2019-12-16 | 2020-04-17 | 珠海格力电器股份有限公司 | Electric motor rotor and alternating-pole electric motor |
| CN111030339B (en) * | 2019-12-16 | 2022-01-28 | 珠海格力电器股份有限公司 | Electric motor rotor and alternating-pole electric motor |
| WO2021217671A1 (en) * | 2020-04-30 | 2021-11-04 | 华为技术有限公司 | Rotor, permanent magnet motor, motor driving system and vehicle |
| CN111463940A (en) * | 2020-06-19 | 2020-07-28 | 宁波海特技术转移有限公司 | Built-in magnet steel permanent magnet motor rotor, motor and vehicle |
| CN112072811A (en) * | 2020-08-03 | 2020-12-11 | 东南大学 | Embedded-permanent magnet reluctance type mixed magnetic pole type memory motor |
| CN112072811B (en) * | 2020-08-03 | 2022-03-08 | 东南大学 | Embedded-permanent magnet reluctance type mixed magnetic pole type memory motor |
| CN114123572A (en) * | 2021-11-12 | 2022-03-01 | 珠海格力电器股份有限公司 | Variable flux permanent magnet motor rotor and variable flux permanent magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107968501B (en) | 2024-04-23 |
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