CN207968107U - Rotor and magneto - Google Patents
Rotor and magneto Download PDFInfo
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- CN207968107U CN207968107U CN201721820007.3U CN201721820007U CN207968107U CN 207968107 U CN207968107 U CN 207968107U CN 201721820007 U CN201721820007 U CN 201721820007U CN 207968107 U CN207968107 U CN 207968107U
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- 238000002955 isolation Methods 0.000 claims abstract description 56
- 230000004888 barrier function Effects 0.000 claims description 25
- 238000009966 trimming Methods 0.000 claims description 24
- 230000005389 magnetism Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000005347 demagnetization Effects 0.000 abstract description 13
- 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 16
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of rotor of the utility model offer and magneto.The rotor includes the multiple magnetic poles of rotor core (1) and setting in rotor core (1), magnetic pole includes the first permanent magnet (2) and the second permanent magnet (3), the pole center position of magnetic pole where first permanent magnet (2) is located at first permanent magnet (2), the both sides of first permanent magnet (2) are provided with the second permanent magnet (3), the coercivity of first permanent magnet (2) be less than the second permanent magnet (3) coercivity, the first permanent magnet (2) along circumferential direction be provided at both ends with the first magnet isolation tank (8).Rotor according to the present utility model can be reduced effectively and fill demagnetization difficulty, increase the reliability of motor operation.
Description
Technical field
The utility model 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
It adjusts, efficiency when magneto being made to be difficult to take into account high and low frequency.And it is fixed in power supply voltage, it limits
The maximum running frequency of motor.
Currently, the shortcomings that magneto internal magnetic field is difficult to adjust mostly, results in motor maximum speed by input direct-current
The problems such as factors such as busbar voltage limit, and motor low speed, high-speed cruising area efficiency are difficult to take into account, in motor operation course,
The problem of low-coercivity magnet steel is influenced to be also easy to produce demagnetization by high-coercive force magnet steel, and under the influence of high-coercive force magnet steel, it is required
It fills that demagnetization current is larger, the adjustable magnetic difficulty of motor can be increased.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of rotor and magneto, Neng Gouyou
Effect, which reduces, fills demagnetization difficulty, reduces influence of the high-coercive force magnet steel to low-coercivity magnet steel, ensures the reliability of motor operation.
To solve the above-mentioned problems, the utility model provides a kind of rotor, and rotor includes rotor core and sets
Set multiple magnetic poles in rotor core, magnetic pole includes the first permanent magnet and the second permanent magnet, the first permanent magnet be located at this first
The both sides of the pole center position of magnetic pole where permanent magnet, the first permanent magnet are provided with the second permanent magnet, and the first permanent magnet is rectified
Stupid power be less than the second permanent magnet coercivity, the first permanent magnet along circumferential direction be provided at both ends with the first magnet isolation tank.
Preferably, the first permanent magnet is rectangular, and the first permanent magnet is perpendicular to the d axis of magnetic pole where first permanent magnet.
Preferably, third permanent magnet is additionally provided in rotor core, third permanent magnet is located at the second permanent magnet far from first
The side of permanent magnet, the coercivity of the first permanent magnet are less than the coercivity of third permanent magnet.
Preferably, the second permanent magnet and the V-shaped arrangement of third permanent magnet, and be arranged in the first permanent magnetism relative to d axial symmetry
The both sides of body.
Preferably, in rotor in the cross-wise direction of axis of rotor rotation line,
First magnet isolation tank extends along the length direction of the second permanent magnet, along the length direction of the first permanent magnet, first
The width of magnet isolation tank is 0.7~1 times of the width of the second permanent magnet；And/or rotor core includes the first mounting groove, first forever
Magnet be arranged in the first mounting groove, the first magnet isolation tank have the first side adjacent with the outer side edges of the first mounting groove, first
Angle theta between side and outer side edges is 75 °~105 °；And/or first magnet isolation tank outer side edges and rotor core outer circle it
Between magnetic bridge width L2 be 0.3mm+0.3* δ~0.3mm+0.9* δ；Wherein δ is unilateral gas length.
Preferably, when being provided with third permanent magnet in rotor core, rotor core further includes third mounting groove, and third is forever
Magnet is arranged in third mounting groove, and the radial outside of third mounting groove is connected with the second magnet isolation tank.
Preferably, the distance between outer circle of the second magnet isolation tank and rotor core L3 is 0.2mm+0.4* δ~0.2mm+
1.1*δ；And/or in two adjacent magnetic poles, the magnetic bridge width L4 between adjacent two the second magnet isolation tanks is 0.3mm+0.3*
δ~0.3mm+0.9* δ；Wherein δ is unilateral gas length.
Preferably, when the second permanent magnet and the V-shaped arrangement of third permanent magnet, between the second permanent magnet and third permanent magnet
V-type region be provided with third magnet isolation tank.
Preferably, third magnet isolation tank includes the first groove body and the second groove body, in rotor perpendicular to axis of rotor rotation
In the cross-wise direction of line,
The width L5 of first groove body and the second groove body is 0.2mm+0.4* δ~0.2mm+0.8* δ；And/or it is located at same V
The angle theta 1 between the first groove body and the second groove body in type region is 5 °~30 °；And/or first groove body be positioned close to
The side of two permanent magnets, the second groove body are positioned close to the side of third permanent magnet, and wherein δ is unilateral gas length.
Preferably, rotor core includes the first mounting groove, and the first permanent magnet is arranged in the first mounting groove, in rotor
In the cross-wise direction of axis of rotor rotation line,
First magnet isolation tank extends along the width direction of the second permanent magnet, the side setting of the width direction of the first magnet isolation tank
There is the first trimming, the angle theta 2 between the first trimming and the outer side edges of the first mounting groove is 40 °~80 °.
Preferably, the first trimming is located at side of first magnet isolation tank far from the first mounting groove.
Preferably, when being provided with third permanent magnet in rotor core, rotor core further includes the second mounting groove and third
Mounting groove, the second permanent magnet are arranged in the second mounting groove, and third permanent magnet is arranged in third mounting groove；
The outer circle of rotor core is provided with the second trimming, and the second trimming is located at magnetic pole side, and is arranged in third mounting groove
Close to the side of the second mounting groove.
Preferably, the angle theta 3 of the second trimming and third mounting groove between the side of the second mounting groove side is 95 °
~130 °.
Preferably, it is arranged fluted on the outer circle q axis magnetic circuits of rotor core, the depth L6 of groove is δ~0.8 0.8+0.5*
+2.5*δ；And/or the angle theta 4 between one of groove side wall and motor q axis is 30 °~60 °, wherein δ is unilateral gas
Gap length.
Preferably, when being provided with third permanent magnet in rotor core, the two neighboring third permanent magnetism of two neighboring magnetic pole
It is radially spaced on q axis magnetic circuits between body to be provided with multiple magnetic barriers.
Preferably, radially, magnetic barrier is arc groove, and the radial thickness L7 of magnetic barrier is 0.3mm+0.2* δ~0.3mm+
0.7*δ；And or, the radial spacing L8 between two neighboring magnetic barrier is 0.2mm+0.3* δ~0.2mm+0.9* δ, wherein δ is unilateral
Gas length.
Preferably, radially, magnetic barrier is arc groove, and multiple magnetic barriers are concentric with the outer circle of rotor core；Or, multiple magnetic
The center of circle of barrier is located in the outer circle of rotor core.
Preferably, rotor core includes the first mounting groove, and the first permanent magnet is arranged in the first mounting groove, the first mounting groove
Both sides along circumferential direction be provided with the protrusion positioned to the installation of the first permanent magnet, diameter of the protrusion from the first mounting groove
Extend to the side in direction towards the other side of radial direction.
Another aspect according to the present utility model provides a kind of magneto, including rotor, which is
Above-mentioned rotor.
Rotor provided by the utility model, rotor include rotor core and are arranged in rotor core multiple
Magnetic pole, magnetic pole include the first permanent magnet and the second permanent magnet, the magnetic pole of magnetic pole where the first permanent magnet is located at first permanent magnet
The both sides of center, the first permanent magnet are provided with the second permanent magnet, and the coercivity of the first permanent magnet is less than the second permanent magnet
Coercivity, the first permanent magnet along circumferential direction be provided at both ends with the first magnet isolation tank.By pole center be arranged coercivity compared with
Higher second permanent magnet of coercivity is arranged in the both sides of the first permanent magnet, then in the first permanent magnet in the first low permanent magnet
The first magnet isolation tank is arranged in both ends along circumferential direction, and magnet steel fills demagnetization difficulty when can reduce adjustable magnetic, motor when reducing adjustable magnetic
The size for filling demagnetization current avoids or reduces the lower permanent magnet of coercivity and influenced to be also easy to produce by the permanent magnet of high-coercive force and moves back
The problem of magnetic, reduces influence of the high-coercive force magnet steel to low-coercivity magnet steel, ensures the reliability of motor operation.
Description of the drawings
Fig. 1 is the structure chart of a magnetic pole of the rotor of the utility model embodiment；
Fig. 2 is that the rotor of the utility model embodiment removes the structural schematic diagram after permanent magnet；
Fig. 3 is the enlarged structure schematic diagram at the M of Fig. 2；
Fig. 4 is the enlarged structure schematic diagram at the N of Fig. 2；
Fig. 5 is the dimensional structure figure of the third magnet isolation tank of the rotor of the utility model embodiment；
Fig. 6 is the size relationship figure of the first trimming of the first magnet isolation tank of the rotor of the utility model embodiment；
Fig. 7 is the size relationship figure of the first trimming of the rotor of the utility model embodiment；
Fig. 8 is the dimensional structure figure of the first magnetic barrier of the rotor of the utility model embodiment；
Fig. 9 is the dimensional structure figure of second of the magnetic barrier of the rotor of the utility model embodiment.
Reference numeral is expressed as：
1, rotor core；2, the first permanent magnet；3, the second permanent magnet；4, third permanent magnet；5, the first mounting groove；6, second
Mounting groove；7, third mounting groove；8, the first magnet isolation tank；9, the second magnet isolation tank；10, the first groove body；11, the second groove body；12, third
Magnet isolation tank；13, the first trimming；14, the second trimming；15, groove；16, magnetic hinders；17, raised.
Specific implementation mode
In conjunction with referring to shown in Fig. 1 to 9, embodiment according to the present utility model, rotor includes rotor core 1 and setting
Multiple magnetic poles in rotor core 1, magnetic pole include the first permanent magnet 2 and the second permanent magnet 3, the first permanent magnet 2 be located at this
The both sides of the pole center position of one permanent magnet, 2 place magnetic pole, the first permanent magnet 2 are provided with the second permanent magnet 3, the first permanent magnet
2 coercivity be less than the second permanent magnet 3 coercivity, the first permanent magnet 2 along circumferential direction be provided at both ends with the first magnet isolation tank
8。
By the way that lower first permanent magnet 2 of coercivity is arranged in pole center, coercive is set in the both sides of the first permanent magnet 2
Then higher second permanent magnet 3 of power is arranged the first magnet isolation tank 8 at the both ends of the first permanent magnet 2 along circumferential direction, can reduce
Magnet steel fills demagnetization difficulty when adjustable magnetic, and when reducing adjustable magnetic motor fills the size of demagnetization current, avoids or to reduce coercivity relatively low
Permanent magnet the problem of being influenced to be also easy to produce demagnetization by the permanent magnet of high-coercive force, it is normal to improve internal rotor low-coercivity permanent magnet
Magnetic stability when operation.
For the rotor in motor low-frequency operation, the lower permanent magnet forward direction of coercivity increases magnetic, and it is anti-electric to improve motor
Gesture improves motor low frequency efficiency；When motor high frequency is run, the reversed weak magnetic of the lower permanent magnet of coercivity reduces winding back emf,
Increase motor high frequency range of operation.And demagnetization current size can be filled by control, so that the lower permanent magnet of coercivity is reached not
Same magnetization status, the multistage adjustable magnetic of realization, different degrees of adjustable magnetic is realized under different rotating speeds, increases the range of operation of motor,
Motor is set to operate in best efficiency point in wider frequency.
Preferably, the first permanent magnet 2 is rectangular, and the first permanent magnet 2 is perpendicular to the d of the 2 place magnetic pole of the first permanent magnet
Axis reduces the first permanent magnet 2 on rotor radial direction so that the structure design of the first permanent magnet 2 is more reasonable
Volume occupy, increase the permanent magnet dosage of higher second permanent magnet of coercivity 3, improve torque and the power density of motor,
More efficiently reduce motor when adjusting magnetic field simultaneously fills demagnetization current size, reduces motor and fills demagnetization difficulty, realizes motor
Internal magnetic field real-time synchronization is adjusted.
Preferably, third permanent magnet 4 is additionally provided in rotor core 1, it is separate that third 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 third permanent magnet 4.The third permanent magnet 4 can
To be matched with the second permanent magnet 3, the coercitive feature of the first permanent magnet 2 is higher than using coercivity, further increases high rectify
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 third permanent magnet, and be arranged first forever relative to d axial symmetry
The both sides of magnet 2 increase High-coercivity Permanent Magnets dosage to more efficiently increase permanent magnet effective volume, improve motor
Torque and power density.In addition, two groups of higher permanent magnets of coercivity are distributed in the lower permanent magnet of coercivity two in " V " type
Side can increase the arrangement size of permanent magnet；The wherein outside higher magnet size bigger of 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, in rotor in the cross-wise direction of axis of rotor rotation line, the first magnet isolation tank 8 is along second
The length direction of permanent magnet 3 extends, and the width of the first magnet isolation tank 8 is 0.7~1 times of the width of the second permanent magnet 3, can be effective
Reduce influence of second permanent magnet 3 to the first permanent magnet 2, and the influence to motor magnetic circuit can be reduced as far as possible.In conjunction with referring to Fig. 3
Shown, the width direction of the first magnet isolation tank 8 in the present embodiment is the length direction of the first permanent magnet 2.In 2 liang of the first permanent magnet
The first magnet isolation tank 8 is arranged by the outer circle side of rotor core 1 in side, can reduce motor by the first magnet isolation tank 8 and fill demagnetization difficulty, reduce
Influence of the higher permanent magnet of coercivity to the lower permanent magnet of coercivity.
Two first magnet isolation tanks 8 at 2 both ends of the first permanent magnet can dividing equally relative to the radial direction of the first permanent magnet 2
Line is symmetrical arranged, and can not also be symmetrical arranged.When the asymmetric setting of two the first magnet isolation tanks 8, structure size can be optimized, subtracted
Small machine torque pulsation.
Preferably, rotor core 1 include the first mounting groove 5, the first permanent magnet 2 be arranged in the first mounting groove 5, first every
Magnetic slot 8 has the first side adjacent with the outer side edges of the first mounting groove 5, and the angle theta between first side and outer side edges is 75 °
~105 °.By optimizing the angle between the first magnet isolation tank 8 and lower first permanent magnet of coercivity 2, motor gas-gap can be improved
Flux density reduces motor torque ripple.
Magnetic bridge width L2 between the outer side edges and the outer circle of rotor core 1 of first magnet isolation tank 8 be 0.3mm+0.3* δ~
0.3mm+0.9*δ；Wherein δ is unilateral gas length.By limiting the range of L2, the second permanent magnet 3 can be reduced to first forever
The influence of magnet 2, and rotor mechanical strength can be kept, while ensureing that prior art can process.
Preferably, when being provided with third permanent magnet 4 in rotor core 1, rotor core 1 further includes third mounting groove 7, the
Three permanent magnet 4 is arranged in third mounting groove 7, and the radial outside of third mounting groove 7 is connected with the second magnet isolation tank 9.By
The second magnet isolation tank 9 is arranged in the radial outside of three mounting grooves 7, can reduce rotor leakage, improves rotor rotational efficienty, improves motor
Working performance.
Preferably, in each magnetic pole, the distance between the second magnet isolation tank 9 and the outer circle of rotor core 1 L3 are 0.2mm+
0.4* δ~0.2mm+1.1* δ.
Preferably, in two adjacent magnetic poles, the magnetic bridge width L4 between adjacent two the second magnet isolation tanks 9 is 0.3mm+
0.3* δ~0.3mm+0.9* δ；Wherein δ is unilateral gas length, can not only reduce interelectrode magnetic leakage, while can ensure machinery
Intensity, while ensureing that prior art can process.
Preferably, when the second permanent magnet 3 and third 4 V-shaped arrangement of permanent magnet, the second permanent magnet 3 and third permanent magnet 4
Between V-type region be provided with third magnet isolation tank 12.By setting third magnet isolation tank 12, rotor field distribution can be optimized, it is excellent
Change air gap magnetic density waveform, reduce motor torque ripple, improves motor job stability.Preferably, third magnet isolation tank 12 is two,
And it is arranged about motor d axial symmetry.
Third magnet isolation tank 12 includes the first groove body 10 and the second groove body 11, in rotor perpendicular to axis of rotor rotation line
Cross-wise direction on, the width L5 of the first groove body 10 and the second groove body 11 is 0.2mm+0.4* δ~0.2mm+0.8* δ, to protect
Card can effectively guide magnetic field, while not influence magnetic circuit reluctance.
Be preferably located at the first groove body 10 in same V-type region and the angle theta 1 between the second groove body 11 be 5 °~
30 °, to more optimize Distribution of Magnetic Field.
Preferably, the first groove body 10 is positioned close to the side of the second permanent magnet 3, and the second groove body 11 is positioned close to third
The side of permanent magnet 4, the first groove body 10 are parallel to the setting of the second permanent magnet 3, and the second groove body 11 is set perpendicular to third permanent magnet 4
It sets, wherein δ is unilateral gas length.
Preferably, rotor core 1 includes the first mounting groove 5, and the first permanent magnet 2 is arranged in the first mounting groove 5, in motor
Rotor in the cross-wise direction of axis of rotor rotation line, the first magnet isolation tank 8 prolongs along the width direction of the second permanent magnet 3
It stretches, the side of the width direction of the first magnet isolation tank 8 is provided with the first trimming 13, the outside of the first trimming 13 and the first mounting groove 5
Angle theta 2 between side is 40 °~80 °.
By that in the first trimming of setting of the side of the first magnet isolation tank 8, motor gas-gap flux density can be improved, optimize Distribution of Magnetic Field,
Reduce motor torque ripple.
Preferably, the first trimming 13 is located at side of first magnet isolation tank 8 far from the first mounting groove 5, can preferably optimize
Distribution of Magnetic Field.
Preferably, when being provided with third permanent magnet 4 in rotor core 1, rotor core 1 further includes 6 He of the second mounting groove
Third mounting groove 7, the second permanent magnet 3 are arranged in the second mounting groove 6, and third permanent magnet 4 is arranged in third mounting groove 7；Turn
The outer circle of sub- iron core 1 is provided with the second trimming 14, and the second trimming 14 is located at magnetic pole side, and is arranged close in third mounting groove 7
Motor working efficiency is improved so as to optimize motor torque ripple in the side of second mounting groove 6.
Preferably, the angle theta 3 of the second trimming 14 and third mounting groove 7 between the side of 6 side of the second mounting groove is
95 °~130 °, asymmetric trimming can be formed in rotor outer circle week, Distribution of Magnetic Field can be optimized, reduce torque pulsation.
Preferably, fluted 15 are arranged on the outer circle q axis magnetic circuits of rotor core 1, the depth L6 of groove 15 is 0.8+0.5* δ
~0.8+2.5* δ reduce q axle inductances so as to increase q axis magnetic resistance, improve efficiency of the motor operation in Id=0.
Preferably, the angle theta 4 between one of groove 15 side wall and motor q axis is 30 °~60 °, and wherein δ is single
Side gas length can protect groove structure, and can optimize Distribution of Magnetic Field to a certain degree.
Preferably, when being provided with third permanent magnet 4 in rotor core 1, the two neighboring third of two neighboring magnetic pole is forever
It is radially spaced on q axis magnetic circuits between magnet 4 to be provided with multiple magnetic barriers 16.Between the adjacent third permanent magnet 4 of interpolar
Region is arranged magnetic and hinders 16, can increase q axis magnetic resistance, reduces q axle inductances, electric efficiency when improving Id=0 operations
Preferably, radially, magnetic barrier 16 be arc groove, magnetic barrier 16 radial thickness L7 be 0.3mm+0.2* δ~
0.3mm+0.7* δ, to guarantee effectively to increase q axis magnetic barrier.Preferably, the radial spacing L8 between two neighboring magnetic barrier 16
For 0.2mm+0.3* δ~0.2mm+0.9* δ, wherein δ is unilateral gas length, can ensure the magnetic circuit between two-poled permanent magnets.
Preferably, radially, magnetic barrier 16 is arc groove, and multiple magnetic barriers 16 are concentric with the outer circle of rotor core 1；Or,
The center of circle of multiple magnetic barriers 16 is located in the outer circle of rotor core 1, to ensure that magnetic barrier has better effect, can more effectively increase
Big q axis magnetic circuits.
Preferably, it is provided with magnetic bridge between the two neighboring third permanent magnet 4 of two neighboring magnetic pole, which can connect
Between two adjacent third mounting grooves 7 for installing third permanent magnet 4, to improve the mechanical strength of rotor.
Preferably, rotor core 1 includes the first mounting groove 5, and the first permanent magnet 2 is arranged in the first mounting groove 5, the first peace
The both sides along circumferential direction of tankage 5 are provided with the protrusion 17 positioned to the installation of the first permanent magnet 2, protrusion 17 from first
The side of the radial direction of mounting groove 5 extends towards the other side of radial direction.Along circumferential direction the two of the first mounting groove 5
Side is respectively provided with protrusion 17, can form good location, more convenient fixed permanent magnet position by 17 pair of first permanent magnet 2 of protrusion
It sets.
Above-mentioned permanent magnet is, for example, magnet steel.
Embodiment according to the present utility model, magneto include rotor, which turns for above-mentioned motor
Son.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill of the art
For personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with modification.
Claims (19)
1. a kind of rotor, which is characterized in that multiple in the rotor core (1) including rotor core (1) and setting
Magnetic pole, the magnetic pole include the first permanent magnet (2) and the second permanent magnet (3), and first permanent magnet (2) is located at first permanent magnetism
The pole center position of magnetic pole where body (2), the both sides of first permanent magnet (2) are provided with second permanent magnet (3), institute
The coercivity for stating the first permanent magnet (2) is less than the coercivity of second permanent magnet (3), and first permanent magnet (2) is circumferentially
Direction is provided at both ends with the first magnet isolation tank (8).
2. rotor according to claim 1, which is characterized 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, which is characterized in that be additionally provided with third forever in the rotor core (1)
Magnet (4), the third permanent magnet (4) are located at side of second permanent magnet (3) far from first permanent magnet (2), institute
The coercivity for stating the first permanent magnet (2) is less than the coercivity of the third permanent magnet (4).
4. rotor according to claim 3, which is characterized in that second permanent magnet (3) and the third permanent magnetism
Body (4) V-shaped arrangement, and be arranged in the both sides of first permanent magnet (2) relative to d axial symmetry.
5. rotor according to any one of claim 1 to 4, which is characterized in that in the vertical of the rotor
In in the cross-wise direction of axis of rotor rotation line,
First magnet isolation tank (8) extends along the length direction of second permanent magnet (3), along first permanent magnet
(2) length direction, the width of first magnet isolation tank (8) are 0.7~1 times of the width of second permanent magnet (3)；With/
Or, the rotor core (1) includes the first mounting groove (5), first permanent magnet (2) is arranged in first mounting groove (5)
Interior, first magnet isolation tank (8) has the first side adjacent with the outer side edges of the first mounting groove (5), first side
Angle theta between side and the outer side edges is 75 °~105 °；And/or the outer side edges of first magnet isolation tank (8) with described turn
Magnetic bridge width L2 between the outer circle of sub- iron core (1) is 0.3mm+0.3* δ~0.3mm+0.9* δ；Wherein δ is that unilateral air gap is long
Degree.
6. rotor according to any one of claim 1 to 4, which is characterized in that set when in the rotor core (1)
When being equipped with third permanent magnet (4), the rotor core (1) further includes third mounting groove (7), third permanent magnet (4) setting
In the third mounting groove (7), the radial outside of the third mounting groove (7) is connected with the second magnet isolation tank (9).
7. rotor according to claim 6, which is characterized in that in each magnetic pole, second magnet isolation tank (9) and institute
It is 0.2mm+0.4* δ~0.2mm+1.1* δ to state the distance between the outer circle of rotor core (1) L3；And/or two adjacent magnetic
In extremely, the magnetic bridge width L4 between adjacent two the second magnet isolation tanks (9) is 0.3mm+0.3* δ~0.3mm+0.9* δ；Wherein δ
For unilateral gas length.
8. rotor according to claim 3 or 4, which is characterized in that when second permanent magnet (3) and the third
When permanent magnet (4) V-shaped arrangement, the V-type region between second permanent magnet (3) and the third permanent magnet (4) is provided with
Third magnet isolation tank (12).
9. rotor according to claim 8, which is characterized in that the third magnet isolation tank (12) includes the first groove body
(10) and the second groove body (11), in the rotor in the cross-wise direction of axis of rotor rotation line,
The width L5 of first groove body (10) and second groove body (11) is 0.2mm+0.4* δ~0.2mm+0.8* δ；With/
Or, the angle theta 1 between the first groove body (10) and the second groove body (11) that are located in same V-type region is 5 °~30 °；And/or
First groove body (10) is positioned close to the side of second permanent magnet (3), and second groove body (11) is positioned close to
The side of third permanent magnet (4), wherein δ are unilateral gas length.
10. rotor according to any one of claim 1 to 4, which is characterized in that the rotor core (1) includes
First mounting groove (5), the first permanent magnet (2) setting is in first mounting groove (5), in the vertical of the rotor
In in the cross-wise direction of axis of rotor rotation line,
First magnet isolation tank (8) extends along the width direction of second permanent magnet (3), first magnet isolation tank (8)
The side of width direction is provided with the first trimming (13), the outer side edges of first trimming (13) and first mounting groove (5)
Between angle theta 2 be 40 °~80 °.
11. rotor according to claim 10, which is characterized in that first trimming (13) be located at described first every
Side of the magnetic slot (8) far from first mounting groove (5).
12. rotor according to any one of claim 1 to 4, which is characterized in that when in the rotor core (1)
When being provided with third permanent magnet (4), the rotor core (1) further includes the second mounting groove (6) and third mounting groove (7), described
In second mounting groove (6), the third permanent magnet (4) is arranged in the third mounting groove for second permanent magnet (3) setting
(7) in；
The outer circle of the rotor core (1) is provided with the second trimming (14), and second trimming (14) is located at the magnetic pole side,
And the side in the third mounting groove (7) close to second mounting groove (6) is set.
13. rotor according to claim 12, which is characterized in that second trimming (14) is installed with the third
Angle theta 3 of the slot (7) between the side of the second mounting groove (6) side is 95 °~130 °.
14. rotor according to any one of claim 1 to 4, which is characterized in that outside the rotor core (1)
It is arranged fluted (15) on circle q axis magnetic circuits, the depth L6 of the groove (15) is 0.8+0.5* δ~0.8+2.5* δ；And/or institute
It is 30 °~60 ° to state the angle theta 4 between one of groove (15) side wall and motor q axis, and wherein δ is unilateral gas length.
15. rotor according to any one of claim 1 to 4, which is characterized in that when in the rotor core (1)
When being provided with third permanent magnet (4), on the q axis magnetic circuits between the two neighboring third permanent magnet (4) of two neighboring magnetic pole
It is radially spaced to be provided with multiple magnetic barriers (16).
16. rotor according to claim 15, which is characterized in that radially, the magnetic barrier (16) is arc
The radial thickness L7 of slot, the magnetic barrier (16) is 0.3mm+0.2* δ~0.3mm+0.7* δ；With or, two neighboring magnetic barrier (16) it
Between radial spacing L8 be 0.2mm+0.3* δ~0.2mm+0.9* δ, wherein δ is unilateral gas length.
17. rotor according to claim 15, which is characterized in that radially, the magnetic barrier (16) is arc
Slot, multiple magnetic barriers (16) and the outer circle of the rotor core (1) are concentric；Or, the center of circle of multiple magnetic barriers (16) is located at
In the outer circle of the rotor core (1).
18. rotor according to claim 1, which is characterized in that the rotor core (1) includes the first mounting groove
(5), the first permanent magnet (2) setting is in first mounting groove (5), and first mounting groove (5) is along circumferential direction
Both sides be provided with the protrusion (17) positioned to the installation of first permanent magnet (2), the protrusion (17) is from described the
The side of the radial direction of one mounting groove (5) extends towards the other side of radial direction.
19. a kind of magneto, including rotor, which is characterized in that the rotor is any in claim 1 to 18
Rotor described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721820007.3U CN207968107U (en) | 2017-12-21 | 2017-12-21 | Rotor and magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721820007.3U CN207968107U (en) | 2017-12-21 | 2017-12-21 | Rotor and magneto |
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|---|---|
| CN207968107U true CN207968107U (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721820007.3U Withdrawn - After Issue CN207968107U (en) | 2017-12-21 | 2017-12-21 | Rotor and magneto |
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| Country | Link |
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| CN (1) | CN207968107U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968502A (en) * | 2017-12-21 | 2018-04-27 | 珠海格力电器股份有限公司 | Rotor and magneto |
| CN109274187A (en) * | 2018-11-30 | 2019-01-25 | 史政齐 | A kind of hybrid permanent magnet rotor for electric vehicle |
| CN109391113A (en) * | 2018-11-30 | 2019-02-26 | 史政齐 | A kind of electric car permanent-magnet synchronous driving motor |
-
2017
- 2017-12-21 CN CN201721820007.3U patent/CN207968107U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968502A (en) * | 2017-12-21 | 2018-04-27 | 珠海格力电器股份有限公司 | Rotor and magneto |
| CN107968502B (en) * | 2017-12-21 | 2024-05-07 | 珠海格力电器股份有限公司 | Motor rotor and permanent magnet motor |
| CN109274187A (en) * | 2018-11-30 | 2019-01-25 | 史政齐 | A kind of hybrid permanent magnet rotor for electric vehicle |
| CN109391113A (en) * | 2018-11-30 | 2019-02-26 | 史政齐 | A kind of electric car permanent-magnet synchronous driving motor |
| CN109274187B (en) * | 2018-11-30 | 2020-12-01 | 山东理工大学 | Hybrid permanent magnet rotor for electric automobile |
| CN109391113B (en) * | 2018-11-30 | 2020-12-22 | 赣州富尔特电子股份有限公司 | Permanent magnet synchronous driving motor of electric automobile |
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