CN108923560A - A kind of interior permanent magnet machines - Google Patents
A kind of interior permanent magnet machines Download PDFInfo
- Publication number
- CN108923560A CN108923560A CN201810591992.8A CN201810591992A CN108923560A CN 108923560 A CN108923560 A CN 108923560A CN 201810591992 A CN201810591992 A CN 201810591992A CN 108923560 A CN108923560 A CN 108923560A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- width
- interior permanent
- magnet machines
- interior
- Prior art date
- 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.)
- Pending
Links
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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew
-
- 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)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention relates to magneto fields, disclose a kind of interior permanent magnet machines, including casing, regular polygon stator core, asymmetric mixed rotor iron core, permanent magnet, axis, winding and Insulating frame；Regular polygon stator core connects yoke by multiple T-type teeth and encloses；The gap that the contact site of regular polygon stator core and casing is formed between ground protection system, with casing forms region filling；Asymmetric mixed rotor iron core includes axle sleeve, axis hole, sector, connecting bridge and support protrusion, and asymmetric hybrid iron core includes full crossover formula lamination and half crossover formula lamination；Full crossover formula lamination is located at the both ends of asymmetric mixed rotor iron core, and full crossover formula lamination axially sandwiches half crossover formula lamination；Insulating frame is coated on the teeth portion that each T-type tooth connects yoke, and winding is wound on Insulating frame.The present invention can simplify the production technology of motor, and the structural strength of motor can be improved.
Description
Technical field
The present invention relates to magneto fields, more particularly to a kind of interior permanent magnet machines.
Background technique
Conventional brushless DC motor uses surface-mount type magnetic shoe or built-in radial magnetizing ring alnico structure, and power density is lower,
It is limited to cost factor, the every pole magnetic flux of motor is improved by cutting orientation magnetizing parallel circuits structure.Existing cutting orientation magnetizing structure there are still
The big problem of leakage field limits motor performance promotion.
Patent CN201611226568.0 designs a kind of rotor core, which has at least one teeth portion sector and rotor set
The disconnection of ring, while thering is at least one teeth portion sector to be connected with axle sleeve.Inhibit the leakage field at paraxial place with this.The rotor core axle sleeve
It is externally provided with positioning convex portion, the positioning and support to permanent magnet.By analysis, the teeth portion sector axis disconnected due to program rotor
To no fixed support part, axial arrangement intensity is poor, is unfavorable for being mass produced, meanwhile, it is above-mentioned to support and position
The positioning protrusion of permanent magnet will be produced from interlinked leakage, reduce power of motor density, be unfavorable for improving performance.
On the other hand, for the motor of built-in cutting orientation magnetizing due to the promotion of power density, stator core is easily saturated generation
Higher core loss reduces electric efficiency.Electromagnetic force wave enhancing simultaneously causes vibration noise to increase.The prior art passes through tiltedly extremely oblique
The methods of slot inhibits vibration noise, and corresponding method increases manufacturing process difficulty and simultaneously increase production hour, patent
CN201320738896.4 devises the stator core of the curved circle of bar shaped, and the program inwardly stretches out teeth portion, phase from stator ring yoke portion
Line embedding groove is formed between two adjacent stator teeths.Stator magnetic circuit balance, flux density is moderate average, reduces part saturation, technique
Simply, production efficiency is higher.But above-mentioned patent only relies on the parameters such as stator rabbet width, teeth portion width and yoke portion width to flux density
It is averaging processing, fails to consider the influence of stator profile and structure to motor-field, loss etc., not applicable and high power density
Electric machine structure does not provide energy also to consider to reduce motor oscillating noise by the combined method between stator core and casing
The structure of enough considering power density and vibration suppression noise reduction.
Therefore, a kind of simple process that can be suitably used for mass production is needed, the reliable high power density of structure, and
The permanent-magnet brushless DC electric machine of low-vibration noise.
Summary of the invention
In order to overcome the shortcomings of the prior art, the technical problem to be solved in the present invention is to provide a kind of built-in type permanent-magnets
Motor, which not only can simplify production technology, but also structural strength and power density can be improved.
In order to solve above-mentioned technical problem of the invention, the present invention provides a kind of interior permanent magnet machines, including casing, just
Polygon stator core, asymmetric mixed rotor iron core, permanent magnet, axis, winding and Insulating frame；
The regular polygon stator core connects yoke by multiple T-type teeth and encloses；
The contact site of the regular polygon stator core and the casing forms the sky between ground protection system, with the casing
Gap forms region filling；
The asymmetric mixed rotor iron core includes axle sleeve, axis hole, sector, connecting bridge and support protrusion, described non-right
Claiming hybrid iron core includes full crossover formula lamination and half crossover formula lamination；
The Insulating frame is coated on the teeth portion formation stator slot that each T-type tooth connects yoke, and the winding is wound in described
On stator slot.
Preferably, it is 12 that the T-type tooth, which connects the quantity of yoke, and the outer boundary of the regular polygon stator core is in positive 12
Side shape；
The yoke portion surfaces externally and internally that each T-type tooth connects yoke is parallel, and the teeth portion that each T-type tooth connects yoke is inside from the yoke portion
It stretches out, the teeth portion is vertical with the boundary face in yoke portion.
Preferably, each T-type tooth connects yoke equipped with inside and outside two rivet points of different sizes, and the size of outer rivet point is big
In the size of interior rivet point；The outer rivet point is set to yoke portion center, and the interior rivet point is set to the teeth portion
In the middle part of crown；
The crown shape of the teeth portion is inclined shoulder type, and the outer inclined-plane of inclined shoulder type crown slot and the angle of teeth portion radial boundary are
Obtuse angle.
Preferably, tubular molding compound is marked in the region filling；
The Insulating frame is coated on the teeth portion formation stator slot that each T-type tooth connects yoke, and the winding is wound in described
On stator slot.
Preferably, the full crossover formula lamination is located at the both ends of the asymmetric mixed rotor iron core, and full crossover formula is folded
Piece axially sandwiches the half crossover formula lamination；
The full crossover formula lamination is overrided to form by multi-disc rotor punching A along axial direction, at least one full crossover formula lamination
Laminate in, the rotor punching A is radially raised, forms the connecting bridge, and two adjacent connecting bridges have not
Same width and length, connecting bridge extends radially outward to form the sector.
Preferably, in same laminate, the sector is asymmetric, two adjacent sectors and the connecting bridge connecting place
With different sizes, the permanent magnet is placed in the slot, the polarity of two adjacent permanent magnets is different, corresponding described turn in slot
Sub- punching A is radially raised, forms support bridge.
Preferably, the half crossover formula lamination is overrided to form by multi-disc rotor punching B along axial direction, at least one half crossover
In the laminate of formula lamination, the rotor punching B extends radially outward to form protrusion, the radial protrusion tool of adjacent two
Have different width and length, the small radial protrusion of width is connect with the sector, the big radial protrusion of width not with the fan
Area's connection.
Preferably, in same laminate, sector is asymmetric, and two adjacent sector areas are differed, are placed in the slot
The permanent magnet, the polarity of permanent magnet is different in two neighboring slot, and the corresponding rotor punching B is extended radially outward in slot
Form radial slot bottom protrusion.
Preferably, the rotor punching A and rotor punching B are laminated along axial direction, and it is asymmetric described to form axial and circumferential
Asymmetric mixed rotor iron core.
Preferably, the big connecting bridge of width extends outward to form 5 big sectors, and the small connecting bridge of width is outside
Extend to form 5 small sectors.
Preferably, the support bridge is contacted with the permanent magnet.
Preferably, the radial slot bottom protrusion outermost is greater than 0.5mm at a distance from the permanent magnet.
Preferably, along axially coincident, the width is small for the big connecting bridge of the width and the big radial protrusion of the width
The connecting bridge connecting bridge small with the width along axially coincident.
Preferably, the big connecting bridge of the width pair sector be connected along axial sides with axle sleeve, axially intermediate portion
Vacantly；
The small connecting bridge of the width pair sector be connected with axle sleeve.
Preferably, the support bridge is with radial slot bottom protrusion along axially coincident, the asymmetric mixed rotor iron
Core is contacted in axial sides with the permanent magnet, and middle section is hanging.
Preferably, of same size, the width of the big connecting bridge width of the width radial protrusion big with the width
Spend the of same size of the small connecting bridge width radial protrusion small with the width.
Preferably, width of the support bridge with radial slot bottom protrusion in axle sleeve side is equal.
Preferably, the ratio of number of the rotor punching A and rotor punching B is less than 0.5.
Preferably, the external arc surface of the rotor punching A and rotor punching B includes x sections for reducing torque wave
Dynamic batten, the batten are arc section or straightway；
The x sections of batten includes at least two sections of straightways.
Preferably, the number of segment x of the batten meets：
If LCM (2P, S)/2P is odd number, then x=[LCM (2P, S)/2P]；
If LCM (2P, S)/2P is even number, then x=[LCM (2P, S)/2P] -1；
Wherein, x, LCM, P, S are respectively batten number of segment, least common multiple, number of pole-pairs and slot number.
Preferably, if the center of circle degree of the main batten in the centre is α, the central angle of remaining each section of batten is respectively β i, then full
Foot：
The present invention can simplify the production technology of motor, and the structural strength of motor can be improved.By designing partition-type
Support bridge and the wide magnetic bridge of partition-type, motor rotor construction intensity are substantially improved.Meanwhile half crossover formula lamination guarantee rotor core one
The sector of a lamination at least half can be connected with axle sleeve, be easy to position in large-scale production process.
Rotor slot bottom can be greatly reduced through the invention from interlinked leakage, to improve air-gap flux, yoke is connected by T-type tooth
Stator structure can reduce motor degree of saturation, maximize every pole magnetic flux.It compares electric machine structure of the present invention and conventional full bridge connects
The back emf coefficient of the electric machine structure connect can be seen that be obviously improved using the winding back emf coefficient of the structure, in motor weight
When carrying row, the torque-current curve linear degree of motor is good, does not occur saturated phenomenon, to improve motor performance.
By five sections of batten formula structures of rotor, the back-emf percent harmonic distortion of motor is lower, the sine degree of air-gap field compared with
It is good, the tangential torque pulsation of motor and radial vibration are reduced with this.Meanwhile yoke structure is connected using T-type tooth, contain between stator and casing
There is region filling, weaken the transmitting vibrated between stator itself and casing with this, realizes the vibration and noise reducing of motor.
Rotor slot bottom is reduced from interlinked leakage to improve power density, it is ensured that the high sine of air-gap field, substantially
Improve back emf coefficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention；
Fig. 2 is the structural schematic diagram of rotor pack in one embodiment of the invention；
Fig. 3 is the structural schematic diagram that T-type tooth connects yoke in one embodiment of the invention；
Fig. 4 is field frame assembly structural schematic diagram in one embodiment of the invention；
Fig. 5 is the structural schematic diagram of rotor punching B in one embodiment of the invention；
Fig. 6 is the structural schematic diagram of rotor punching A in one embodiment of the invention；
Fig. 7 (a) is that full-bridge linking rotor slot bottom is (b) that box is irised out in (a) from the Leakage flux distribution that interlinks in the prior art
Partial partial enlarged view；
Fig. 8 (a) is in the prior art without partition support bridge type rotor slot bottom from the Leakage flux distribution that interlinks, and is (b) box in (a)
Iris out the partial enlarged view of part；
Fig. 9 (a) is present invention partition support bridge type rotor slot bottom from the Leakage flux distribution that interlinks, and is (b) that box irises out portion in (a)
The partial enlarged view divided；
Figure 10 be three kinds of different structure motors paraxial place's slot bottom from interlinkage magnetic leakage factor correlation curve；
Figure 11 is that regular polygon T-type tooth connects space schematic diagram in yoke stator slot in one embodiment of the invention；
Figure 12 is space schematic diagram in traditional structure stator slot；
Figure 13 is each section of batten distribution schematic diagram of five sections of batten rotor punchings in one embodiment of the invention；
Figure 14 is the unloaded back-emf harmonic content of one embodiment of the invention；
Figure 15 is the decomposition texture schematic diagram of rotor pack in one embodiment of the invention；
Figure 16 is the structural schematic diagram of half crossover formula lamination in one embodiment of the invention.
Description of symbols
Casing 1；
Stator core 2；Ground protection system 22；Region filling 23；
T-type tooth connects yoke 21；Yoke portion 211；Stator slot bottom 2111；Inflection point 2112；Teeth portion 212；Inclined shoulder type crown slot 2121；
Outer rivet point 213；Interior rivet point 214；
Rotor core 3；
Full crossover formula lamination 31；Full crossover punching 311；External arc surface 3111；Plastic through-hole 3112；Rivet point 3113；
Support bridge 312；Wide magnetic bridge 313；Narrow magnetic bridge 314；
Half crossover formula lamination 32；Half crossover punching 321；The external arc surface 3211 of half crossover punching；Half crossover punching
Plastic through-hole 3212；The rivet point 3213 of half crossover punching；Separate punching 322；Separate the external arc surface 3221 of punching；Separation
The plastic through-hole 3222 of punching；Separate the rivet point 3223 of punching；Partition-type support bridge 323；The wide magnetic bridge 324 of partition-type；Narrow magnetic
Bridge 325；
Permanent magnet 4；Axis 5；Winding 6；7 Insulating frames.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
As shown in Figure 1, one embodiment of the present of invention is permanent-magnet brushless DC electric machine, including casing 1, regular polygon stator
Iron core 2, asymmetric mixing closed assembly rotor core 3, permanent magnet 4, axis 5, winding 6 and Insulating frame 7.
As shown in Figures 3 and 4, stator core 2 connects yoke 21 by 12 T-type teeth and encloses, between stator core 2 and casing 1
Connect the connection point contact between yoke 21 by adjacent T-type tooth, contact site forms ground protection system 22, and each T-type tooth connects the yoke portion of yoke 21
The gap of 211 outer surface or top surface between plane, and the inner wall of circular casing 1 forms region filling 23, region filling 23
Interior fillable multiple material, in this example, casing 1 is tubular molding compound, then tubular molding compound is also injected into region filling 23, i.e.,
Casing 1 and packing material are same material, and the two mixing plays enhancing motor rigidity, improves damping, absorb the effect of vibration.
Winding 6 uses flying trident coiling, and designed stator groove profile can effectively avoid flying trident coiling interference, improve and produce efficiency in enormous quantities.
As shown in figure 3, the outer surface that T-type tooth connects the yoke portion 211 of yoke 21 is parallel with stator slot bottom 2111, T-type tooth connects yoke 21
Inside and outside two rivet points of different sizes are equipped with, the size of outer rivet point 213 is greater than the size of interior rivet point 214, this implementation
In example, outer 213 diameter of rivet point is 1.2mm, 214 diameter of interior rivet point is 1.0mm；Outer rivet point 213 is set to 211 center of yoke portion
Position, interior rivet point 214 are set in the middle part of the crown of teeth portion 212；The crown shape of teeth portion 212 is inclined shoulder type, inclined shoulder type crown slot
2121 outer inclined-plane and the angle of 212 radial boundary of teeth portion are obtuse angle, preferably 120 °, the outer surface of teeth portion 212 and yoke portion 211
Or stator slot bottom 2111 is vertical, the straight line slope over 10 of inclined shoulder type crown slot 2121 is 30 °, and 212 narrowest place width of teeth portion is
5.2mm, 211 height of yoke portion are 3.5mm, are calculated in conjunction with production technology, in the present embodiment, as shown in figure 11, the reason of stator core 2
By can around groove area compared to typical round stator core stamping sheet shown in Figure 12 can around groove area improve 8.5%.Inflection point
2112 primarily serve the effect that curved circle release stress is carried out for stator core 2.
As shown in Fig. 2,15 and 16, in the present embodiment, rotor core 3 is by two groups of full crossover formula laminations 31 and one and half crossovers
32 axial backmixing closed assembly of formula lamination forms, and two groups of full crossover formula laminations 31 are located at the both ends of rotor core 3, two groups of full crossovers
Formula lamination 31 is axial to sandwich half crossover formula lamination 32, and half crossover formula lamination 32 is formed by multi-disc punching B closed assembly as shown in Figure 5,
Full crossover formula lamination 31 is formed by punching A closed assembly as shown in FIG. 6, and punching A31 and punching B32 are axially provided with through-hole, using modeling
Property material by through-hole penetrate through to rotor core 3 carry out wrapped strengthening, be located by connecting by rivet point 3113,3213,3223, rush
The through-hole edge of piece and the frontier distance of adjacent permanent magnet slot are 2.6mm, are A+B+A along axial closed assembly structure, and full crossover formula is folded
Piece 31 includes 10 punching A, and half crossover formula lamination 32 includes 30 punching B, with the motor phase for all forming rotor by punching B
Than the back emf coefficient of the present embodiment motor improves 34.4%.
As shown in fig. 6, punching A be connect bridge architecture entirely, permanent magnet 4 selected by the present embodiment with a thickness of 5mm, narrow magnetic bridge
314 width are 0.8mm, and wide 313 width of magnetic bridge is 1.5mm, and magnetic bridge length is 2.8mm, and 312 width of support bridge is 1.2mm, are such as schemed
Punching B shown in 5 is partly to connect bridge architecture, and narrow 325 width of magnetic bridge is 0.8mm, the spacing of partition-type support bridge 323 and permanent magnet 4
For 2.5mm, by the optimization of above-mentioned parameter, the permanent magnet trough bottom at the paraxial place of rotor core 3 is greatly reduced from interlinked leakage, guarantees
Other parameters are constant, respectively compare full-bridge connecting type rotor structure (as shown in Figure 7), without separate support bridge type structure (such as Fig. 8 institute
Show) and the present embodiment Distribution of Magnetic Field (as shown in Figure 9), and calculate from interlinkage magnetic leakage factor (as shown in Figure 10), three kinds can be obtained
Certainly interlinkage magnetic leakage factor is respectively 0.207,0.065,0.018 to the slot bottom of structural electromotor, it was demonstrated that the present embodiment can greatly improve electricity
Machine power density.
In the embodiment as shown in Fig. 5, Fig. 6 and 13, be 10 pole, 12 slot motor, i.e. 2P=10, S=12, LCM (10,12)/
10=6, then batten number of segment x=6-1=5.The external arc surface of punching A and punching B reduces torque using five sections of batten structures
Fluctuation improves vibration noise of motor, and each rotor sections use this structure, i.e., intermediate one section and the concentric central angle of stator are α
The main batten of circular arc line, with off-centre operation camber line batten and the edge center of circle Liang Duan that two sections of adjacent central angles of main batten or so are β 1
Angle is that the straightway batten of β 2 should meet as shown in figure 13Then+2 β 1+2 β 2=36 ° of α.
By 5 sections of batten formula rotors of comparative analysis completely circular structure rotor, traditional three sections of arc construction rotors and the present embodiment,
The unloaded back-emf aberration rate optimized is only 1.18% (analyzing 50 subharmonic), corresponding harmonic components such as Figure 14 institute
Show.In the present embodiment, plastic shaping is carried out to rotor surface using tubular molding compound, and acquires motor highest structural failure and turns
Speed is 19000rpm, more than 6 times of motor actual running speed or more, it was demonstrated that the rotor surface structure design of the present embodiment can guarantee
The high sine of air-gap field and enough structural strengths.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (21)
1. a kind of interior permanent magnet machines, which is characterized in that including casing, regular polygon stator core, hybrid turn asymmetric
Sub- iron core, permanent magnet, axis, winding and Insulating frame；
The regular polygon stator core connects yoke by multiple T-type teeth and encloses；
The asymmetric mixed rotor iron core includes axle sleeve, axis hole, sector, connecting bridge and support protrusion, described asymmetric mixed
Box-like iron core includes full crossover formula lamination and half crossover formula lamination.
2. interior permanent magnet machines as described in claim 1, which is characterized in that the quantity that the T-type tooth connects yoke is 12, institute
The outer boundary of regular polygon stator core is stated in dodecagon；
The yoke portion surfaces externally and internally that each T-type tooth connects yoke is parallel, and the teeth portion that each T-type tooth connects yoke is inwardly stretched from the yoke portion
Out, the teeth portion is vertical with the boundary face in yoke portion.
3. interior permanent magnet machines as claimed in claim 2, which is characterized in that each T-type tooth connects yoke equipped with inside and outside two
A rivet point of different sizes, the size of outer rivet point are greater than the size of interior rivet point；The outer rivet point is set to the yoke portion
Center, the interior rivet point are set in the middle part of the crown of the teeth portion；
The crown shape of the teeth portion is inclined shoulder type, and the outer inclined-plane of inclined shoulder type crown slot and the angle of teeth portion radial boundary are blunt
Angle.
4. interior permanent magnet machines as described in claim 1, which is characterized in that be marked with tubular molding compound in the region filling；
The Insulating frame is coated on the teeth portion formation stator slot that each T-type tooth connects yoke, and the winding is wound in the stator
On slot.
5. interior permanent magnet machines as described in claim 1, which is characterized in that it is described non-right that the full crossover formula lamination is located at
Claim the both ends of mixed rotor iron core, full crossover formula lamination axially sandwiches the half crossover formula lamination；
The full crossover formula lamination is overrided to form by multi-disc rotor punching A along axial direction, in the folded of at least one full crossover formula lamination
In pressurized layer, the rotor punching A is radially raised, forms the connecting bridge, and two adjacent connecting bridges have different
Width and length, connecting bridge extend radially outward to form the sector.
6. interior permanent magnet machines as claimed in claim 5, which is characterized in that in the laminate of same full crossover formula lamination
Interior, the sector is asymmetric, and two adjacent sectors have different sizes from the connecting bridge connecting place, is placed with institute in the slot
Permanent magnet is stated, the polarity of two adjacent permanent magnets is different, and the corresponding rotor punching A is radially raised in slot, is formed
Support bridge.
7. interior permanent magnet machines as claimed in claim 6, which is characterized in that the half crossover formula lamination is rushed by multi-disc rotor
Piece B is overrided to form along axial direction, and in the laminate of at least one half crossover formula lamination, the rotor punching B radially prolongs
Stretch to form protrusion, two adjacent radial protrusions have different width and length, the small radial protrusion of width with it is described
Sector connection, the big radial protrusion of width are not connect with the sector.
8. interior permanent magnet machines as claimed in claim 7, which is characterized in that in the laminate of same half crossover formula lamination
Interior, sector is asymmetric, and two adjacent sector areas differ, and the permanent magnet, permanent magnetism in two neighboring slot are placed in the slot
The polarity of body is different, and the corresponding rotor punching B extends radially outward to form radial slot bottom protrusion in slot.
9. interior permanent magnet machines as claimed in claim 7, which is characterized in that the rotor punching A and rotor punching B are along axis
To laminating, the asymmetric asymmetric mixed rotor iron core of axial and circumferential is formed.
10. interior permanent magnet machines as claimed in claim 5, which is characterized in that the big connecting bridge of width extends outwardly
5 big sectors are formed, the small connecting bridge of width extends outward to form 5 small sectors.
11. interior permanent magnet machines as claimed in claim 6, which is characterized in that the support bridge is contacted with the permanent magnet.
12. interior permanent magnet machines as claimed in claim 8, which is characterized in that the radial slot bottom protrusion outermost and institute
The distance for stating permanent magnet is greater than 0.5mm.
13. interior permanent magnet machines as claimed in claim 7, which is characterized in that the big connecting bridge of the width and the width
Big radial protrusion is spent along axially coincident, and the small connecting bridge of the width connecting bridge small with the width is along axially coincident.
14. interior permanent magnet machines as claimed in claim 11, which is characterized in that the big connecting bridge of the width pair fan
Area is connected along axial sides with axle sleeve, and axially intermediate portion is hanging；
The small connecting bridge of the width pair sector be connected with axle sleeve.
15. interior permanent magnet machines as claimed in claim 8, which is characterized in that the support bridge and the radial slot bottom are convex
It rises along axially coincident, the asymmetric mixed rotor iron core is contacted in axial sides with the permanent magnet, and middle section is hanging.
16. interior permanent magnet machines as claimed in claim 7, which is characterized in that the big connecting bridge width of the width and institute
State the of same size of the big radial protrusion of width, the width of the width small connecting bridge width and the small radial protrusion of the width
It spends identical.
17. interior permanent magnet machines as claimed in claim 8, which is characterized in that the support bridge and the radial slot bottom are convex
The width risen in axle sleeve side is equal.
18. interior permanent magnet machines as claimed in claim 7, which is characterized in that the rotor punching A and the rotor punching
The ratio of number of B is less than 0.5.
19. interior permanent magnet machines as claimed in claim 7, which is characterized in that the rotor punching A and the rotor punching
The external arc surface of B includes the x sections of battens for reducing torque ripple, and the batten is arc section or straightway；
The x sections of batten includes at least one section of main batten in centre and sets up two sections of straightways of two sides separately.
20. interior permanent magnet machines as claimed in claim 19, which is characterized in that the number of segment x of the batten meets：
If LCM (2P, S)/2P is odd number, then x=[LCM (2P, S)/2P]；
If LCM (2P, S)/2P is even number, then x=[LCM (2P, S)/2P] -1；
Wherein, x, LCM, P, S are respectively batten number of segment, least common multiple, number of pole-pairs and slot number.
21. interior permanent magnet machines as claimed in claim 20, which is characterized in that set the center of circle degree of the main batten in the centre as
α, the central angle of remaining each section of batten are respectively β i, then meet：
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810591992.8A CN108923560A (en) | 2018-05-31 | 2018-05-31 | A kind of interior permanent magnet machines |
| CN202110807671.9A CN113364183A (en) | 2018-05-31 | 2018-11-30 | Permanent magnet motor |
| CN201811459944.XA CN110556947A (en) | 2018-05-31 | 2018-11-30 | Built-in permanent magnet motor |
| CN202110809037.9A CN113346652A (en) | 2018-05-31 | 2018-11-30 | Permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810591992.8A CN108923560A (en) | 2018-05-31 | 2018-05-31 | A kind of interior permanent magnet machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108923560A true CN108923560A (en) | 2018-11-30 |
Family
ID=64418720
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810591992.8A Pending CN108923560A (en) | 2018-05-31 | 2018-05-31 | A kind of interior permanent magnet machines |
| CN202110807671.9A Pending CN113364183A (en) | 2018-05-31 | 2018-11-30 | Permanent magnet motor |
| CN201811459944.XA Pending CN110556947A (en) | 2018-05-31 | 2018-11-30 | Built-in permanent magnet motor |
| CN202110809037.9A Pending CN113346652A (en) | 2018-05-31 | 2018-11-30 | Permanent magnet motor |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110807671.9A Pending CN113364183A (en) | 2018-05-31 | 2018-11-30 | Permanent magnet motor |
| CN201811459944.XA Pending CN110556947A (en) | 2018-05-31 | 2018-11-30 | Built-in permanent magnet motor |
| CN202110809037.9A Pending CN113346652A (en) | 2018-05-31 | 2018-11-30 | Permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN108923560A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725923A (en) * | 2020-07-27 | 2020-09-29 | 威灵（芜湖）电机制造有限公司 | Motor and household appliance |
| CN112421924A (en) * | 2020-11-09 | 2021-02-26 | 广东威灵电机制造有限公司 | Motor and household appliance |
| CN112421905A (en) * | 2020-12-18 | 2021-02-26 | 山东理工大学 | Production method of radial-crossed block-type salient pole rotor for driving motor |
| CN112564344A (en) * | 2019-09-26 | 2021-03-26 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN112564350A (en) * | 2019-09-26 | 2021-03-26 | 广东威灵电机制造有限公司 | Motor, household appliance and manufacturing method of motor |
| CN114465381A (en) * | 2022-01-21 | 2022-05-10 | 华为数字能源技术有限公司 | Rotor and electric excitation synchronous motor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130027417A (en) * | 2011-09-07 | 2013-03-15 | 삼성전자주식회사 | Motor and washing machine having the same |
| CN105024469A (en) * | 2015-08-19 | 2015-11-04 | 广东威灵电机制造有限公司 | Rotor iron core, rotor and motor |
| CN105099012A (en) * | 2015-09-17 | 2015-11-25 | 上海电机系统节能工程技术研究中心有限公司 | High-performance permanent magnet servo motor |
| CN205377492U (en) * | 2015-12-31 | 2016-07-06 | 卧龙电气集团股份有限公司 | Direct current permanent -magnet machine rotor core |
| US10312756B2 (en) * | 2016-03-31 | 2019-06-04 | Nidec Motor Corporation | Spoked rotor with inner structural bridges providing low flux leakage |
| CN106712348A (en) * | 2016-12-27 | 2017-05-24 | 威灵（芜湖）电机制造有限公司 | Rotor core, rotor and motor with same |
| CN113691041A (en) * | 2017-11-01 | 2021-11-23 | 莱克电气股份有限公司 | Rotor core |
| CN107834730A (en) * | 2017-11-01 | 2018-03-23 | 莱克电气股份有限公司 | Embedded permanent magnet synchronous motor rotor core |
| CN108923553A (en) * | 2018-05-31 | 2018-11-30 | 广东威灵电机制造有限公司 | A kind of high power density permanent magnet motor |
-
2018
- 2018-05-31 CN CN201810591992.8A patent/CN108923560A/en active Pending
- 2018-11-30 CN CN202110807671.9A patent/CN113364183A/en active Pending
- 2018-11-30 CN CN201811459944.XA patent/CN110556947A/en active Pending
- 2018-11-30 CN CN202110809037.9A patent/CN113346652A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564344A (en) * | 2019-09-26 | 2021-03-26 | 广东威灵电机制造有限公司 | Rotor and motor |
| CN112564350A (en) * | 2019-09-26 | 2021-03-26 | 广东威灵电机制造有限公司 | Motor, household appliance and manufacturing method of motor |
| CN112564350B (en) * | 2019-09-26 | 2022-04-01 | 广东威灵电机制造有限公司 | Motor, household appliance and manufacturing method of motor |
| CN111725923A (en) * | 2020-07-27 | 2020-09-29 | 威灵（芜湖）电机制造有限公司 | Motor and household appliance |
| CN112421924A (en) * | 2020-11-09 | 2021-02-26 | 广东威灵电机制造有限公司 | Motor and household appliance |
| CN112421924B (en) * | 2020-11-09 | 2021-09-10 | 广东威灵电机制造有限公司 | Motor and household appliance |
| CN112421905A (en) * | 2020-12-18 | 2021-02-26 | 山东理工大学 | Production method of radial-crossed block-type salient pole rotor for driving motor |
| CN112421905B (en) * | 2020-12-18 | 2022-06-21 | 山东理工大学 | Production method of radial-crossed block-type salient pole rotor for driving motor |
| CN114465381A (en) * | 2022-01-21 | 2022-05-10 | 华为数字能源技术有限公司 | Rotor and electric excitation synchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110556947A (en) | 2019-12-10 |
| CN113364183A (en) | 2021-09-07 |
| CN113346652A (en) | 2021-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108923560A (en) | A kind of interior permanent magnet machines | |
| CN209250350U (en) | A kind of high power density permanent magnet motor | |
| US8710711B2 (en) | Permanent magnet rotor with flux concentrating pole pieces | |
| US8471424B2 (en) | Permanent-magnet (PM) rotors and systems | |
| CN103219814B (en) | Asynchronous starting permanent magnet synchronous motor rotor based on permanent magnets with different residual magnetic densities | |
| US9461510B2 (en) | Permanent magnet electrical machine | |
| CN106464048A (en) | Permanent-magnet dynamo-electric machine and compressor using same | |
| CN205622461U (en) | Device of making an uproar falls in brushless motor | |
| CN205489836U (en) | Stator is towards piece, motor stator and use this motor stator's motor | |
| CN111313576B (en) | Modularized permanent magnet motor | |
| CN113949244B (en) | Single-tooth concentrated winding few-harmonic axial flux motor | |
| CN109245346B (en) | Split combined stator | |
| CN210350986U (en) | Birotor permanent magnet synchronous reluctance motor | |
| CN206620033U (en) | A kind of permanent-magnet synchronous electric motor for compressor | |
| CN208241417U (en) | A kind of high power density permanent magnet motor | |
| CN210041604U (en) | 24 groove 10 utmost point axial magnetic current motor and electric vehicle | |
| CN210016332U (en) | Permanent magnet brushless DC motor stator core structure | |
| CN103618391B (en) | A kind of permanent magnet brushless electromotor of ten pole 12 grooves | |
| CN206283341U (en) | The rotor sheet of permanent magnet motor of work frequency conversion performance is taken into account with self-starting ability | |
| Ming et al. | Electromagnetic performance comparison of doubly salient PM machines with different stator iron core segments | |
| CN101924442B (en) | Permanent magnet synchronous motor with damping slot on rotor | |
| CN210183204U (en) | Dislocation birotor magnetic flux switching type permanent magnet motor and power generation equipment | |
| CN221177388U (en) | Rotor punching sheet, rotor structure and motor | |
| CN203660681U (en) | Ten-pole and twelve-groove permanent magnetic brushless motor | |
| CN216414006U (en) | Low-vibration variable-frequency permanent magnet motor punching sheet for air cooling island |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181130 |