CN203180672U - Permanent magnet motor rotor assembly, permanent magnet motor stator assembly and corresponding permanent magnet motor - Google Patents
Permanent magnet motor rotor assembly, permanent magnet motor stator assembly and corresponding permanent magnet motor Download PDFInfo
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- CN203180672U CN203180672U CN 201320055921 CN201320055921U CN203180672U CN 203180672 U CN203180672 U CN 203180672U CN 201320055921 CN201320055921 CN 201320055921 CN 201320055921 U CN201320055921 U CN 201320055921U CN 203180672 U CN203180672 U CN 203180672U
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Abstract
A permanent magnet motor rotor assembly, comprising: a plurality of magnet receiving grooves arranged at intervals along a circumferential direction of the rotor assembly; and a plurality of permanent magnets, each of which is disposed in each of the plurality of magnet accommodating grooves and has a symmetrical center line. The outer edge of the rotor assembly corresponding to each of the plurality of permanent magnets comprises a first outer edge and a second outer edge, each of the first outer edge and the second outer edge comprises a first curve-shaped outer edge far away from the symmetrical center line and a second curve-shaped outer edge close to the symmetrical center line, and the distance between the first curve-shaped outer edge and the center of the rotor assembly is smaller than the distance between the second curve-shaped outer edge and the center of the rotor assembly. Adopt the basis the utility model discloses a permanent-magnet machine of rotor subassembly has improved the anti demagnetization ability of permanent magnet, has reduced output torque's pulsation. It also relates to a permanent magnet motor stator assembly and a corresponding permanent magnet motor.
Description
Technical field
The utility model relates to a kind of rotor assembly of magneto, more specifically, relates to a kind of pulsation of the output torque that can reduce magneto and the rotor assembly that improves the anti-demagnetization capability of magneto.Also relate to a kind of permanent magnet motor stator assembly and corresponding magneto.
Background technology
In the application of existing frequency conversion refrigerant compressor, adopt rare-earth permanent-magnet electric machine as the driver part of compressor usually.The magnetic energy product of rare-earth permanent magnet is 6 times to 10 times of ferrite permanent magnet, so rare-earth permanent magnet is widely used in high-power, the high efficiency frequency conversion refrigerant compressor.Therefore but rare-earth permanent magnet is expensive, and the processing technology complexity has increased the manufacturing cost of rare-earth permanent-magnet electric machine widely, thereby makes the cost of the compressor that adopts this motor correspondingly increase.In addition, rare earth element not only reserves is little, and the refinement of rare earth element causes than havoc, seriously polluted environment.Therefore, along with the strictness day by day to environmental protection requirement, the exploitation of rare earth element is paid bigger cost with refinement with needs, so its application also will have bigger limitation.
Because rare-earth magnet has above-described limitation, and the raw material wide material sources of ferrimagnet, with low cost become the selection of a kind of economy that replaces rare-earth permanent magnet gradually.But, existing ferrite permanent-magnet motor exist power output relative with torque less, efficient is lower and output torque pulsation big shortcoming, so it only can be applied under power demand is less, required precision is the not high environment.Therefore, need a kind ofly can to improve power output and torque in the prior art, efficient increases and the little ferrite permanent-magnet motor of torque pulsation.
The utility model content
The utility model provides a kind of rotor assembly of magneto, and it comprises: a plurality of magnet storage tanks, and a plurality of magnet storage tanks are along the setting of turning up the soil at interval of the circumferential direction of rotor assembly; And a plurality of permanent magnets, each in a plurality of permanent magnets is arranged in a plurality of magnet storage tanks each, and each in a plurality of permanent magnets all has symmetrical center line.Wherein, the outer rim of each the corresponding rotor assembly in a plurality of permanent magnets comprises first outer rim and second outer rim, in first outer rim and second outer rim each includes the second shaped form outer rim away from the first shaped form outer rim of symmetrical center line and close symmetrical center line, and the distance at the center of the first shaped form outer rim and rotor assembly is less than the distance at the center of the second shaped form outer rim and rotor assembly.
In an embodiment according to permanent magnet machine rotor assembly of the present utility model, first outer rim and second outer rim are about the symmetrical center line symmetry of permanent magnet.
According to an embodiment of permanent magnet machine rotor assembly of the present utility model, the first shaped form outer rim is the isocentric circular arc outer rim in the center of circle for the center with rotor assembly.
In another embodiment according to permanent magnet machine rotor assembly of the present utility model, the first shaped form outer rim is positioned to the end corresponding to permanent magnet.
According to another embodiment of permanent magnet machine rotor assembly of the present utility model, the second shaped form outer rim is corresponding to the middle part of permanent magnet.
In another embodiment according to permanent magnet machine rotor assembly of the present utility model, the second shaped form outer rim of first outer rim is the eccentric arc outer rim, and the center of circle of eccentric arc outer rim is with respect to the off-centring of rotor assembly.
According to also embodiment of permanent magnet machine rotor assembly of the present utility model, the center of circle of eccentric arc outer rim is positioned on the straight line perpendicular to the symmetrical center line of permanent magnet and the center by rotor assembly.
In another embodiment according to permanent magnet machine rotor assembly of the present utility model, the center of circle of eccentric arc outer rim lateral deviation opposite with first outer rim of mind-set symmetrical center line from rotor assembly moved eccentric throw, and the scope of the ratio of the thickness of eccentric throw and permanent magnet is 0.02 to 0.8.Further, the ratio of the thickness of eccentric throw and permanent magnet is 0.28.
According to another embodiment of permanent magnet machine rotor assembly of the present utility model, be 0.40 to 0.85 about two section second shaped form outer rim of symmetrical center line symmetry and adjacency scope of corresponding first central angle and the ratio of the corresponding corresponding magnetic pole angle of permanent magnet in rotor assembly.Advantageously, the ratio of first central angle and magnetic pole angle is 0.52.
In another embodiment according to permanent magnet machine rotor assembly of the present utility model, the scope at the ratio between the least radius at the first shaped form outer rim place of the maximum radius at the second shaped form outer rim place and rotor assembly of rotor assembly is 1.0 to 1.15.Advantageously, the ratio of maximum radius and least radius is 1.01.
The utility model also relates to a kind of permanent magnet motor stator assembly, it comprises: stator base portion and a plurality of stator tooth, each in a plurality of stator tooths include the neck that extends towards the center of stator module from the stator base portion and the alar part that extends to both sides from the end of neck.Wherein, the end of the alar part of stator module has otch.
According to an embodiment of permanent magnet motor stator assembly of the present utility model, the inner edge along alar part extends towards the middle part of alar part otch from the end of alar part.
In another embodiment according to permanent magnet motor stator assembly of the present utility model, the otch on the alar part is 0.1 to 1.0mm along the width of the radial direction of stator module.Advantageously, the width of above-mentioned otch is 0.25mm.
According to another embodiment of permanent magnet motor stator assembly of the present utility model, wherein, otch is 1.5 ° to 6 ° along the scope of corresponding second central angle of the circumferential direction of stator module.Advantageously, above-mentioned second central angle is 2.56 °.
The utility model further provides a kind of magneto, and it comprises stator module and rotor assembly, and rotor assembly is contained in the inner chamber of stator module rotatably.Wherein, rotor assembly is aforesaid permanent magnet machine rotor assembly.
In another embodiment according to magneto of the present utility model, rotor assembly comprises 6 permanent magnets.
The utility model also relates to a kind of magneto, and it comprises rotor assembly and stator module, and rotor assembly is contained in the inner chamber of stator module rotatably.Wherein, stator module is aforesaid permanent magnet motor stator assembly.
In another embodiment according to magneto of the present utility model, rotor assembly is aforesaid permanent magnet machine rotor assembly.
According to another embodiment of magneto of the present utility model, stator module comprises 9 stator tooths.
Not only improved the anti-demagnetization capability of permanent magnet according to magneto of the present utility model, and reduced the pulsation of output torque, made its motion more stable thus, efficient is higher.
Description of drawings
By following with reference to accompanying drawing provide to the detailed description according to specific embodiment of the utility model, can be expressly understood feature and advantage of the present utility model more, in the accompanying drawings:
Fig. 1 is the schematic diagram that illustrates according to magneto of the present utility model;
Fig. 2 is the schematic diagram that illustrates according to permanent magnet machine rotor assembly of the present utility model;
Fig. 3 is the schematic diagram that illustrates according to permanent magnet motor stator assembly of the present utility model;
Fig. 4 is the partial enlarged drawing of stator module shown in Figure 3; And
Fig. 5 illustrates ferrite permanent-magnet motor of the prior art and according to the correlation curve figure of the pulsation of the output torque of ferrite permanent-magnet motor of the present utility model.
Embodiment
With reference to the accompanying drawings the utility model illustrative embodiments is described in detail.Description to illustrative embodiments only is for serve exemplary purposes, and never is the restriction to the utility model and application or usage.
As shown in Figure 1, illustrate according to magneto 200 of the present utility model.Magneto 200 comprises stator module 220 and is contained in rotor assembly 240 in the inner chamber of stator module 220 rotatably.According to the prior art of structure electric rotating machine, by using armature spindle, rotor bearing and end cap rotor assembly 240 is positioned in the inner chamber of stator module 220.
A plurality of stator tooths 222 that stator module 220 comprises stator base portion 221 and 220 radial direction is extended towards the inner chamber of stator module 220 from stator base portion 221 along stator module.Each stator tooth 222 comprises from the stator base portion 221 extended necks 224 of stator module 220 and the alar part 226 that extends to both sides respectively from the end of neck 224.The end of two the relative alar parts 226 that extend from the end of two adjacent necks 224 is separated from each other by notch respectively.The winding 228 of stator module 220 is wound on the neck 224 of each stator tooth 222, and is provided for making the magnetic field of rotor assembly 240 rotations when being supplied to electric current.Rotor assembly 240 comprises along turn up the soil at interval a plurality of magnet storage tanks 242 of arranging and be contained in permanent magnet 244 in a plurality of magnet storage tanks 242 each of its circumferential direction.As shown in Figure 1 according to magneto 200 of the present utility model in, a plurality of magnet storage tanks 242 and corresponding permanent magnet 244 are along the setting of evenly turning up the soil at interval of the circumferential direction of rotor assembly 240.
As shown in Figure 2, in according to permanent magnet machine rotor assembly 240 of the present utility model, each permanent magnet 244 all has the symmetrical center line by the center O of rotor assembly 240, such as, a permanent magnet 244 shown in Fig. 2 has symmetrical center line OA.The outer rim of each permanent magnet 244 corresponding rotor assembly 240 comprises first outer rim 246 and second outer rim 248, and advantageously, first outer rim 246 and second outer rim 248 are about symmetrical center line OA symmetry.Certainly, first outer rim 246 and second outer rim 248 also can be not in relation to symmetrical center line OA symmetry, as long as arrange symmetrically about the center O center of rotor assembly 240 such as satisfying a plurality of permanent magnets 244.First outer rim 246 comprises away from the first shaped form outer rim 246-1 of symmetrical center line OA and the second shaped form outer rim 246-2, and the distance between the point on the first shaped form outer rim 246-1 and the center O of rotor assembly is less than the distance between the center O of the point on the second shaped form outer rim 246-2 and rotor assembly.Because the end of permanent magnet 244 is arranged to corresponding to the first curve outer rim 246-1, and in the bigger gap of first curve outer rim 246-1 place formation with the inner edge of stator module 220, can reduce magnetic field that stator winding 228 produces thus to the influence of the end of permanent magnet 244, thereby improve the anti-demagnetization capability of permanent magnet 244.
Advantageously, the first shaped form outer rim 246-1 is the isocentric circular arc outer rim in the center of circle for the center O with rotor assembly 240.Further, in conjunction with aforesaid feature, the distance of the center O of the second shaped form outer rim 246-2 and rotor assembly 240 is greater than the radius R min of isocentric circular arc outer rim.In addition, the first shaped form outer rim 246-1 also can be other curve shapes, such as multistage straight line or the center of circle arc with respect to the center O skew of rotor assembly 240.At this, the second shaped form outer rim 246-2 can be the circular arc in the center of circle for the center O with rotor assembly 240, and this moment, and the radius of the second shaped form outer rim 246-2 is greater than the radius R min as the first shaped form outer rim 246-1 of isocentric circular arc outer rim; Perhaps the second shaped form outer rim 246-2 can for circular arc as the first shaped form outer rim 246-1 decentraction of isocentric circular arc outer rim, perhaps be other curve shapes.Advantageously, the second shaped form outer rim 246-2 is circular arc, and its center of circle O1 is with respect to the center O skew certain distance of rotor assembly 240, and the distance of wherein said skew is called eccentric distance e.Further, the first shaped form outer rim 246-1 compares the center O of more close rotor assembly 240 with the second shaped form outer rim 246-2, and the first shaped form outer rim 246-1 is formed on the place, end of permanent magnet 244, and the second shaped form outer rim 246-2 is formed on the medium position place of permanent magnet 244.Such as in embodiment as shown in Figure 2, for the U-shaped permanent magnet 244 shown in the figure, be formed on the corresponding outer rim place, end of U-shaped permanent magnet 244 as the first shaped form outer rim 246-1 of isocentric circular arc outer rim, extend near the symmetrical center line OA towards permanent magnet 244 of the end of U-shaped permanent magnet 244 as the second shaped form outer rim 246-2 of eccentric arc outer rim.Also comprise the first shaped form outer rim 248-1 and the second shaped form outer rim 248-2 with first edge 246 about second outer rim 248 of symmetrical center line OA symmetry, the first shaped form outer rim 246-1 of its structure and first outer rim 246 is identical with the structure of the second shaped form outer rim 246-2, omits detailed description thereof at this.The second shaped form outer rim 246-2 of first outer rim 246 engages at symmetrical center line OA place with the second shaped form outer rim 248-2 of second outer rim 248.
For the pole regions of each permanent magnet 244, two section second shaped form outer rim 246-2 and 248-2 that the outer rim of rotor assembly 240 comprises two section first shaped form outer rim 246-1 and 248-1 of the end that is positioned at each permanent magnet 244 and is positioned at the medium position place of each permanent magnet 244.Advantageously, it is the isocentric circular arc outer rim in the center of circle that two section first shaped form outer rim 246-1 and 248-1 are with the center O of rotor assembly 240, and two section second shaped form outer rim 246-2 and 248-2 are center of circle O1 with respect to the eccentric arc outer rim of the center O skew eccentric distance e of rotor assembly 240.The second shaped form outer rim 248-2 of the second shaped form outer rim 246-2 of first outer rim 246 and second outer rim 248 intersects at the symmetrical center line OA of each permanent magnet 244, and rotor assembly 240 has maximum radius Rmax at the intersection point place of the second shaped form outer rim 246-2 and 248-2.The first shaped form outer rim 248-1 of the first shaped form outer rim 246-1 of first outer rim 246 and second outer rim 248 is about the symmetrical center line OA symmetry of permanent magnet 244, and the second shaped form outer rim 248-2 of the second shaped form outer rim 246-2 of first outer rim 246 and second outer rim 248 is also about the symmetrical center line OA symmetry of permanent magnet 244.Adjacent two permanent magnets, the 244 corresponding first shaped form outer rims have identical radius and are engaged with each other.
When being installed in rotatably in the inner chamber of stator module 220 according to the described rotor assembly 240 of above embodiment of the present utility model, when forming magneto 200 as shown in Figure 1, between the inner edge of the outer rim of the rotor assembly 240 that is formed by the first shaped form outer rim 246-1 as the isocentric circular arc outer rim and stator module 220, form air gap, be called concentric air gap; Between the inner edge of the outer rim of the rotor assembly 240 that is formed by the second shaped form outer rim 246-2 as the eccentric arc outer rim and stator module 220, form air gap, be called eccentric air gap.Because the first shaped form outer rim 246-1 is with respect to the center O of the second shaped form outer rim 246-2 along the more close rotor assembly 240 of the radial direction of rotor assembly 240, that is to say, has bigger air gap between the inner edge of the first shaped form outer rim 246 with respect to the second shaped form outer rim 246-2 and stator module 220, therefore, above-mentioned concentric air gap along the width of the radial direction of rotor assembly 240 greater than the width of above-mentioned eccentric air gap along the radial direction of rotor assembly 240.Because rotor assembly 240 has the outer rim that is formed by the second shaped form outer rim 246-2 as the eccentric arc outer rim, can reduce the pulsation of the output torque of magneto 200, and can strengthen the poly-magnetic effect of rotor assembly 240.In addition, the outer rim that is formed by the isocentric circular arc outer rim is adopted at magnetic pole position at the permanent magnet 244 of rotor assembly 240, because the relative bigger concentric air gap of formation between the inner edge of isocentric circular arc outer rim and stator module 220, therefore, this design can improve the anti-demagnetization capability of permanent magnet 244.
Below the relative dimensions according to the rotor assembly 240 of magneto 200 of the present utility model is described in detail.Formation is Rmin according to the radius of the first shaped form outer rim 246-1 of the outer rim of rotor assembly 240 of the present utility model, is the least radius of rotor assembly 240, and at this moment, the first shaped form outer rim 246-1 is the isocentric circular arc outer rim.Distance between the second shaped form outer rim 246-2 that is adjacent to engage and the center O of the intersection point between the 248-2 and rotor assembly 240 is the maximum radius Rmax of rotor assembly 240.At this, satisfy following relation between Rmin and the Rmax: 1.0≤Rmax/Rmin≤1.15, advantageously, both ratio is 1.0142, that is, and Rmax/Rmin=1.01.In addition, the radius of the formed pitch circle in outermost summit along the circumferential direction of rotor assembly 240 is Rm, then Rm=Rmax.Further, for each permanent magnet 244, be called the first central angle θ 1 about two section second shaped form outer rim 246-2 of the symmetrical center line OA symmetry of rotor assembly 240 and both side ends corresponding central angle in rotor assembly 240 of 248-2, every utmost point permanent magnet 244 occupied central angle on the whole circumference of rotor assembly 240 is called magnetic pole angle θ, then satisfy following relation between the first central angle θ 1 and the magnetic pole angle θ: 0.40≤θ, 1/ θ≤0.85, advantageously, θ 1 is 0.52 with the ratio of θ, that is θ 1/ θ=0.52.Need to prove at this, the magnetic pole angle θ of every utmost point permanent magnet 244 is the size of the central angle that on average occupied in rotor assembly of every utmost point permanent magnet 244, such as in the embodiment shown in Figure 2, has 6 utmost point permanent magnets 244, then the magnetic pole angle θ of every utmost point permanent magnet 244 is 360 °/6, namely 60 °.
In addition, be the center O of rotor assembly 240 according to the center of circle of the isocentric circular arc outer rim of the rotor assembly 240 of magneto 200 of the present utility model, namely the first shaped form outer rim 246-1 is the isocentric circular arc outer rim in the center of circle for the center O with rotor assembly 240.On the straight line vertical by the symmetrical center line OA of center O and the permanent magnet 244 corresponding with this isocentric circular arc outer rim, along the direction skew eccentric distance e that points to the eccentric arc outer rim from this isocentric circular arc outer rim, be the center of circle O1 of eccentric arc outer rim.That is to say that the circular O1 of eccentric arc outer rim moves eccentric distance e from the center O of rotor assembly 240 to the lateral deviation opposite with the eccentric arc outer rim of symmetrical center line OA.In according to embodiment of the present utility model, the thickness of permanent magnet 244 is W1, be that minimum range between two lateral margins of permanent magnet 244 is W1, then satisfy following relation between the thickness W1 of eccentric distance e and permanent magnet 244: 0.02≤e/W1≤0.8, advantageously, ratio between the thickness W1 of eccentric distance e and permanent magnet 244 is 0.2811, that is, and and e/W1=0.2811.Because as the second shaped form outer rim 246-2 of eccentric arc outer rim and the 248-2 symmetrical center line OA symmetry about permanent magnet 244, therefore, the center of circle of the center of circle O1 of the second shaped form outer rim 246-2 and the second shaped form outer rim 248-2 is about the symmetrical center line OA symmetry of permanent magnet 244.
In the stator module 220 according to magneto 200 of the present utility model, the side towards stator center O ' of the end of the alar part 226 of stator tooth 222 is provided with otch 227, as shown in Figure 3 and Figure 4.Under perfect condition, when rotor assembly 240 was installed in the inner chamber of stator module 220, the center O of rotor assembly 240 overlapped with the stator center O ' of stator module 220.The inner edge towards stator center O ' along stator tooth 222 extends to the middle part of stator tooth 222 otch 227 from the outermost end of alar part 226, thereby in the position of otch 227, at the inner edge of the stator module 220 that is formed by stator tooth 222 and be installed between the outer rim of the rotor assembly 240 in the inner chamber of stator module 220 and form bigger gap.Otch 227 is 1.5 ° to 6 ° from the scope of the span angle θ 2 that extend to the middle part outermost end of the alar part 226 of stator tooth 222, and advantageously, the span angle θ 2 of otch 227 is 2.56 °.Need to prove that at this span angle θ 2 of otch 227 is otch 227 along the corresponding central angle in the end of the both sides of the circumferential direction of stator module 220.In addition, otch 227 is 0.1mm to 1.0mm along the span of the width W 2 of the radial direction of stator module 220, and advantageously, the width W 2 of otch 227 is 0.25mm.Other parts of the stator tooth 222 of the inner edge of formation stator module 220 are made of the identical circular arc inner edge of radius.That is to say that it is on the same circle in the center of circle that the part except otch 227 of the inner edge of stator module 220 is positioned at O '.Otch 227 can increase the gap between the outer rim of the part of the end of the alar part 226 of stator tooth 222 and rotor assembly 240 of the inner edge of stator module 220, thereby can adjust the Distribution of Magnetic Field that produced by winding 228 in the intensity near the outer rim place of rotor assembly 240.Thereby the rotation of the position that is easy to demagnetize of permanent magnet 244 that can be in rotor assembly 240 is during through the end of alar part 226, reduce the magnetic field of winding 228 generations to the influence at the easy demagnetization position of permanent magnet 244, thereby can improve the anti-demagnetization capability of permanent magnet 244.In addition, because the alar part 226 of the stator tooth 222 of the inner edge of formation stator module 220 has adopted the staged form, the pulsation of output torque of magneto and the excitation leakage field that reduces stator winding 228 can also be reduced thus, thereby the efficient of magneto can be improved.
Can reduce the harmonic wave that rotor assembly 240 produces according to magneto 200 of the present utility model, reduce the pulsation of the output torque of magneto 200 thus, make that the running of magneto 200 is more steady, thereby can improve the efficient of magneto 200.In addition, because rotor assembly 240 has adopted radius littler isocentric circular arc outer rim relatively near the end of permanent magnet 244, and the end of the alar part 226 of stator tooth 222 has otch 227, the anti-demagnetization capability of permanent magnet 244 can be improved thus, thereby the useful life of magneto 200 can be prolonged.The inventor draws following data through verification experimental verification, when adopting ferrite permanent magnet, compare with the stator module of complete circumference form and the magneto of rotor assembly of all adopting of the prior art according to magneto 200 of the present utility model, its improved efficiency 0.2% to 0.8%, the efficiency of motor of its efficient and employing rare-earth permanent magnet of the prior art is roughly suitable.Further, compare with the ferrite permanent-magnet motor of prior art according to the magneto 200 of employing ferrite permanent magnet of the present utility model, make the pulsation of output torque reduce 30% to 50%, can see this point in the experimental data contrast from Fig. 5.As shown in Figure 5, illustrate according to the ferrite permanent-magnet motor of prior art with according to the correlation curve figure of the output torque time to time change of ferrite permanent magnet motor of the present utility model.Wherein, be 1.0898Nm according to the difference between the peak value of the output torque of the ferrite permanent-magnet motor of prior art, and be 0.4923Nm according to the difference between the peak value of the output torque of ferrite permanent-magnet motor 200 of the present utility model.Wherein, two kinds of ferrite permanent-magnet motors that compare experiment are same model and size.This shows, reduced it widely according to ferrite permanent-magnet motor 200 of the present utility model and exported the pulsation of torque, can correspondingly improve efficiency of motor thus.
Though with reference to illustrative embodiments the utility model is described, but be to be understood that, the utility model is not limited in the literary composition embodiment describing in detail and illustrate, under the situation that does not depart from claims institute restricted portion, those skilled in the art can make various modifications and variations to described illustrative embodiments.
Claims (24)
1. a permanent magnet machine rotor assembly (240) comprising:
A plurality of magnet storage tanks (242), described a plurality of magnet storage tanks (242) are along the setting of turning up the soil at interval of the circumferential direction of described rotor assembly (240); And
A plurality of permanent magnets (244), each in described a plurality of permanent magnets (244) are arranged in described a plurality of magnet storage tanks (242) each, and each in described a plurality of permanent magnets (244) all has symmetrical center line (OA),
It is characterized in that, the outer rim of each the corresponding rotor assembly (240) in described a plurality of permanent magnet (244) comprises first outer rim (246) and second outer rim (248), in described first outer rim (246) and described second outer rim (248) each includes the first shaped form outer rim (246-1 away from described symmetrical center line (OA), 248-1) with near the second shaped form outer rim (246-2 of described symmetrical center line (OA), 248-2), the described first shaped form outer rim (246-1,248-1) with the distance at the center (O) of described rotor assembly (240) less than the described second shaped form outer rim (246-2,248-2) with the distance at the center (O) of described rotor assembly (240).
2. permanent magnet machine rotor assembly as claimed in claim 1 (240), wherein, described first outer rim (246) and described second outer rim (248) are about described symmetrical center line (OA) symmetry.
3. permanent magnet machine rotor assembly as claimed in claim 1 (240), wherein, the described first shaped form outer rim (246-1,248-1) is that the center (O) with described rotor assembly (240) is the isocentric circular arc outer rim in the center of circle.
4. as each the described permanent magnet machine rotor assembly (240) among the claim 1-3, wherein, the described first shaped form outer rim (246-1,248-1) is positioned to the end corresponding to described permanent magnet (244).
5. permanent magnet machine rotor assembly as claimed in claim 4 (240), wherein, the described second shaped form outer rim (246-2,248-2) is positioned to the middle part corresponding to described permanent magnet (244).
6. permanent magnet machine rotor assembly as claimed in claim 5 (240), wherein, the described second shaped form outer rim (246-2) of described first outer rim (246) is the eccentric arc outer rim, and the center of circle of described eccentric arc outer rim (O1) is with respect to center (O) skew of described rotor assembly (240).
7. permanent magnet machine rotor assembly as claimed in claim 6 (240), wherein, the center of circle of described eccentric arc outer rim (O1) is positioned on the straight line perpendicular to the symmetrical center line (OA) of described permanent magnet (244) and the center (O) by described rotor assembly (240).
8. permanent magnet machine rotor assembly as claimed in claim 7 (240), wherein, with described first outer rim (246) the opposite lateral deviation of the center of circle of described eccentric arc outer rim (O1) from described center (O) to described symmetrical center line (OA) moved eccentric throw (e), and described eccentric throw (e) is 0.02 to 0.8 with the scope of the ratio of the thickness (W1) of described permanent magnet (244).
9. permanent magnet machine rotor assembly as claimed in claim 8 (240), wherein, described eccentric throw (e) is 0.28 with the ratio of the thickness (W1) of described permanent magnet (244).
10. permanent magnet machine rotor assembly as claimed in claim 1 (240), wherein, be 0.40 to 0.85 about two section second shaped form outer rim (246-2,248-2) of described symmetrical center line (OA) symmetry and adjacency scope of corresponding first central angle (θ 1) and the ratio of the corresponding magnetic pole angle of corresponding described permanent magnet (244) (θ) in described rotor assembly (240).
11. permanent magnet machine rotor assembly as claimed in claim 10 (240), wherein, described first central angle (θ 1) is 0.52 with the ratio of described magnetic pole angle (θ).
12. permanent magnet machine rotor assembly as claimed in claim 1 (240), wherein, the scope that is positioned at the ratio between the least radius (Rmin) that the described first shaped form outer rim (246-1) locates that is positioned at maximum radius (Rmax) that the described second shaped form outer rim (246-2) locates and described rotor assembly (240) of described rotor assembly (240) is 1.0 to 1.15.
13. permanent magnet machine rotor assembly as claimed in claim 12 (240), wherein, described maximum radius (Rmax) is 1.01 with the ratio of described least radius (Rmin).
14. a permanent magnet motor stator assembly (220) comprising:
Stator base portion (221); With
A plurality of stator tooths (222), in described a plurality of stator tooth (222) each includes the neck (224) that extends towards the center of described stator module (220) from described stator base portion (221) and the alar part (226) that extends to both sides from the end of described neck (224)
It is characterized in that the end of the alar part (226) of described stator module (220) has otch (227).
15. permanent magnet motor stator assembly as claimed in claim 14 (220), wherein, the inner edge along described alar part (226) extends towards the middle part of described alar part (226) described otch (227) from the end of described alar part (226).
16. permanent magnet motor stator assembly as claimed in claim 15 (220), wherein, the described otch (227) on the described alar part (226) is 0.1 to 1.0mm along the width (W2) of the radial direction of described stator module (220).
17. permanent magnet motor stator assembly as claimed in claim 16 (220), wherein, the described width (W2) of described otch (227) is 0.25mm.
18. as each the described permanent magnet motor stator assembly (220) among the claim 14-17, wherein, described otch (227) is 1.5 ° to 6 ° along the scope of corresponding second central angle of the circumferential direction of described stator module (220) (θ 2).
19. permanent magnet motor stator assembly as claimed in claim 18 (220), wherein, described second central angle (θ 2) is 2.56 °.
20. a magneto (200) comprising:
Stator module; With
Rotor assembly, described rotor assembly is contained in the inner chamber of described stator module rotatably, it is characterized in that, and described rotor assembly is each described permanent magnet machine rotor assembly (240) among the claim 1-13.
21. magneto as claimed in claim 20 (200), wherein, described rotor assembly (240) comprises 6 permanent magnets (244).
22. a magneto (200) comprising:
Rotor assembly; With
Stator module, described rotor assembly is contained in the inner chamber of described stator module rotatably, it is characterized in that, and described stator module is each described permanent magnet motor stator assembly (220) among the claim 14-19.
23. magneto as claimed in claim 22 (200), wherein, described rotor assembly is each described permanent magnet machine rotor assembly (240) among the claim 1-13.
24. magneto as claimed in claim 22 (200), wherein, described stator module (220) comprises 9 stator tooths (222).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055921 CN203180672U (en) | 2013-01-31 | 2013-01-31 | Permanent magnet motor rotor assembly, permanent magnet motor stator assembly and corresponding permanent magnet motor |
| PCT/CN2013/087233 WO2014117564A1 (en) | 2013-01-31 | 2013-11-15 | Rotor assembly for permanent magnet motor, and corresponding permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055921 CN203180672U (en) | 2013-01-31 | 2013-01-31 | Permanent magnet motor rotor assembly, permanent magnet motor stator assembly and corresponding permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180672U true CN203180672U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320055921 Expired - Lifetime CN203180672U (en) | 2013-01-31 | 2013-01-31 | Permanent magnet motor rotor assembly, permanent magnet motor stator assembly and corresponding permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180672U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973004A (en) * | 2013-01-31 | 2014-08-06 | 艾默生环境优化技术(苏州)有限公司 | Permanent magnet motor rotor assembly and corresponding permanent magnet motor |
| WO2014117564A1 (en) * | 2013-01-31 | 2014-08-07 | 艾默生环境优化技术(苏州)有限公司 | Rotor assembly for permanent magnet motor, and corresponding permanent magnet motor |
| CN105743314A (en) * | 2016-05-06 | 2016-07-06 | 吕三元 | Brushless energy-saving automobile motor of highly efficient new energy rare earth permanent magnet direct-current |
| CN107370269A (en) * | 2017-09-15 | 2017-11-21 | 青岛理工大学 | A kind of p-m rotor and asynchronous starting permanent magnet synchronous motor |
-
2013
- 2013-01-31 CN CN 201320055921 patent/CN203180672U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973004A (en) * | 2013-01-31 | 2014-08-06 | 艾默生环境优化技术(苏州)有限公司 | Permanent magnet motor rotor assembly and corresponding permanent magnet motor |
| WO2014117564A1 (en) * | 2013-01-31 | 2014-08-07 | 艾默生环境优化技术(苏州)有限公司 | Rotor assembly for permanent magnet motor, and corresponding permanent magnet motor |
| CN103973004B (en) * | 2013-01-31 | 2016-08-17 | 艾默生环境优化技术(苏州)有限公司 | Permanent magnet motor rotor assembly and corresponding permanent magnet motor |
| CN105743314A (en) * | 2016-05-06 | 2016-07-06 | 吕三元 | Brushless energy-saving automobile motor of highly efficient new energy rare earth permanent magnet direct-current |
| CN107370269A (en) * | 2017-09-15 | 2017-11-21 | 青岛理工大学 | A kind of p-m rotor and asynchronous starting permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |