CN116599255A - Motor rotor structure and high-performance servo motor - Google Patents
Motor rotor structure and high-performance servo motor Download PDFInfo
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- CN116599255A CN116599255A CN202310358375.4A CN202310358375A CN116599255A CN 116599255 A CN116599255 A CN 116599255A CN 202310358375 A CN202310358375 A CN 202310358375A CN 116599255 A CN116599255 A CN 116599255A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 108
- 239000010959 steel Substances 0.000 claims abstract description 108
- 238000004080 punching Methods 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 3
- 230000004888 barrier function Effects 0.000 claims 1
- 238000002955 isolation Methods 0.000 description 17
- 230000004907 flux Effects 0.000 description 7
- 238000009826 distribution Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention discloses a motor rotor structure and a high-performance servo motor, which belong to the technical field of motors, wherein the rotor structure comprises a rotor punching sheet, the center of the rotor punching sheet is provided with a rotating shaft hole matched with a rotating shaft of the motor, convex magnetic steel grooves are uniformly and uniformly arranged at equal angle intervals on the periphery of the rotor punching sheet, and convex magnetic steel is correspondingly embedded in the convex magnetic steel grooves.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor rotor structure and a high-performance servo motor.
Background
In the industrial manufacturing field, industrial robot has characteristics such as technical requirement is high, and the application scene is extensive, increases fast. The servo motor is used as a core component of the robot, and the performance of the servo motor determines the accuracy, stability and production efficiency of the robot. Therefore, the servo motor is required to have the capabilities of small torque fluctuation, wide speed regulation range, high efficiency, large torque density, strong overload capacity and the like. In order to realize small cogging torque and torque fluctuation of a motor, the prior main technology is to optimize the shape of an eccentric arc of a circular gear shoe in a stator or an eccentric arc of an outer circle of a rotor, and the torque fluctuation can be reduced, but the output capacity of the motor torque is reduced.
Wherein, patent one: CN110022044a discloses a low torque ripple permanent magnet synchronous motor for a vehicle-mounted air conditioner compressor.
According to the invention, the arc shape of the stator tooth boot is changed through the optimal design of the stator tooth part and the rotor excircle, and meanwhile, the rotor excircle is optimally designed, so that the purposes of reducing torque fluctuation and further reducing the vibration noise of the compressor are achieved. But only the optimized torque fluctuation and the air gap flux density harmonic wave are considered, and whether the output performance of the optimized motor is reduced is not considered.
And a second patent: CN112928842a discloses a rotor punching sheet, a rotor, a permanent magnet synchronous motor and a vehicle.
The invention aims to provide a rotor punching sheet, which adopts V-shaped and one-shaped arrangement to increase the magnetic flux area, and adopts an arc surface structure for a second permanent magnet in a straight shape, so that the magnetic flux path from the permanent magnet to the outer circle of the rotor is reduced, the magnetic resistance is reduced, and the output torque is improved. However, only the capability of improving the torque output by optimizing the magnetic circuit is considered, and the influence of the magnetic circuit change on other motor characteristics, such as the increase of torque fluctuation, the change condition of air gap harmonic loss and the like, is not considered.
Disclosure of Invention
The technical purpose is that: aiming at the defects of the prior motor rotor structure optimization, the invention discloses a motor rotor structure capable of improving the torque output capability and increasing the motor overload operation range while reducing the torque fluctuation and the cogging torque, and a high-performance servo motor.
The technical scheme is as follows: in order to achieve the technical purpose, the invention adopts the following technical scheme:
the utility model provides a motor rotor structure, includes the rotor punching, rotor punching center is equipped with and motor shaft matched with pivot hole, has evenly equiangular interval arranged the boss magnet steel groove in rotor punching periphery, corresponds in the boss magnet steel groove and inlays and be equipped with boss magnet steel, rotor punching periphery is equipped with the eccentric circular arc curved surface corresponding with boss magnet steel groove, forms the pole shoe between eccentric circular arc curved surface and boss magnet steel groove's upper surface, and the thickness of pole shoe reduces gradually from the center to both ends.
Preferably, the convex magnetic steel adopts a symmetrical structure, and comprises a magnetic steel upper arc curved surface and a magnetic steel lower arc curved surface which are symmetrically arranged, wherein the shape of a convex magnetic steel groove is matched with that of the convex magnetic steel, and a vertical plane is used for connection transition between the magnetic steel upper arc curved surface and the magnetic steel lower arc curved surface; the curvature radius of the eccentric arc curved surface is smaller than that of the arc curved surface on the magnetic steel.
Preferably, two ends of the pole shoe form a magnetism isolating bridge which continuously converges outwards from the end part of the convex magnetic steel outside the convex magnetic steel groove.
Preferably, the convex circular magnetic steel groove comprises an upper circular arc curved surface of the magnetic steel groove and a lower circular arc curved surface of the magnetic steel groove, wherein the circle center of the outline of the eccentric circular arc curved surface is Q1, and the curvature radius is R1; the circle center of the arc curved surface contour line on the magnetic steel groove is Q2, the curvature radius is R2,0 < (R2-R1)/T1 < 1, and T1 is the distance between the circle centers Q1 and Q2.
Preferably, the thickness of the pole shoe is H3 at the center, the thickness of the two end magnetic isolation bridges is L1, L1 is more than 0.9 and less than 1.2, and H3=2.6×L1.
Preferably, the thickness of the middle part of the convex magnetic steel is H2, the thickness of the end part is H1, H1 is 2.5 times H1 < H2 < 3 times H1, H1 is more than 2.2 times Gair, and Gair is the average value of the length of an air gap between a rotor and a stator.
Preferably, the magnetizing direction of the convex circular magnetic steel is parallel magnetizing.
Preferably, the rotor punching sheet of the invention is uniformly provided with the lightening holes in the area between the rotating shaft hole and the convex magnetic steel groove.
The invention also provides a high-performance servo motor, which uses the motor rotor structure, wherein the servo motor comprises a stator and a rotor, the rotor is concentrically arranged in an inner ring of the stator, an air gap is formed between the periphery of the rotor and the stator, the stator comprises laminated stator punching sheets and windings positioned on the stator punching sheets, and the windings are positioned in stator grooves of the stator punching sheets.
The beneficial effects are that: the motor rotor structure and the high-performance servo motor provided by the invention have the following beneficial effects:
1. the motor rotor structure adopts the convex magnetic steel and the convex magnetic steel groove with double-sided convex structures, the magnetomotive force of the convex magnetic steel is more close to sinusoidal distribution by adjusting the curvature radius of the outline circular arc of the convex magnetic steel, and meanwhile, the eccentric arc of the outer circle of each rotor is optimized, and the cooperative adjustment of the two circular arcs enables the air gap magnetic field to better trend to a sine wave magnetic field. The higher harmonic wave of the air gap flux density can be reduced, and particularly nZ/2p harmonic wave can be reduced, so that the cogging torque of the motor is reduced, and the cogging torque can be reduced by 32% through simulation comparison. Meanwhile, the no-load counter potential waveform is more similar to a sine wave, so that the motor has lower additional loss, higher efficiency, lower temperature rise and smaller torque fluctuation.
2. According to the invention, the pole shoe with the thickness gradually converging from the center to two ends is formed between the eccentric arc curved surface and the arc curved surface on the magnetic steel groove, so that the magnetic field leakage rate can be reduced, and the utilization rate of the convex magnetic steel magnetic field can be increased.
3. The convex magnetic steel with the double-sided convex structure can increase magnetomotive force of a middle magnetic field of the convex magnetic steel, can provide higher magnetomotive force on the premise of the same material consumption of the convex magnetic steel, and can provide higher torque, 2.5 percent of torque improvement and 19.7 percent of torque fluctuation reduction compared with the traditional linear convex magnetic steel motor. Meanwhile, when the motor is overloaded, the motor can resist a higher demagnetizing field of armature current, and has strong demagnetizing resistance, so that the range of the maximum working range of the motor is wider.
4. The magnetic isolation bridge is formed by the eccentric arc curved surface of the rotor and the arc curved surface on the magnetic steel groove, and the two sides of the magnetic isolation bridge are arc structures, so that compared with the broken line magnetic isolation bridge structure of the traditional linear convex magnetic steel rotor, the arc magnetic isolation bridge reduces stress concentration at the magnetic isolation bridge under the condition of not increasing the thickness of the magnetic isolation bridge, thereby improving the stability of the structure of the motor rotor and enabling the motor to operate at higher rotating speed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a diagram of the overall structure of a servo motor of the present invention;
FIG. 2 is an enlarged partial view of a portion of a motor rotor convex magnetic steel groove according to the present invention;
FIG. 3 is a schematic view of a motor rotor convex magnetic steel structure according to the present invention;
FIG. 4 is a schematic diagram of a linear convex magnetic steel motor structure in the invention;
FIG. 5 is a diagram showing the structure of a magnetic isolation bridge according to the present invention in comparison with a conventional magnetic isolation bridge;
FIG. 6 is a waveform diagram of an air gap of the motor of the present invention;
FIG. 7 is a graph showing the numerical comparison of cogging torque between a motor of the present invention and a linear convex magnetic steel motor;
FIG. 8 is a graph showing the comparison of no-load counter potential waveforms of the motor and the linear convex magnetic steel motor according to the invention;
FIG. 9 is a graph comparing torque fluctuation values of the motor and the linear convex magnetic steel motor according to the invention;
FIG. 10 is a graph of the maximum operating interval T-N between the motor and the linear convex magnetic steel motor according to the invention;
the rotor comprises a 1-rotor punching sheet, a 2-rotating shaft hole, a 3-convex magnetic steel groove, 4-convex magnetic steel, a 5-magnetic steel upper arc curved surface, a 6-magnetic steel lower arc curved surface, a 7-vertical plane, an 8-eccentric arc curved surface, a 9-pole shoe, a 10-magnetism isolating bridge, a 11-magnetic steel groove upper arc curved surface, a 12-magnetic steel groove lower arc curved surface, a 13-lightening hole, a 14-stator, a 15-stator punching sheet, a 16-winding and a 17-stator groove.
Description of the embodiments
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, but in which the invention is not so limited.
As shown in fig. 1-10, the motor rotor structure disclosed by the invention comprises a rotor punching sheet 1, a rotating shaft hole 2 matched with a motor rotating shaft is formed in the center of the rotor punching sheet 1, convex magnetic steel grooves 3 are uniformly and uniformly arranged at equal angle intervals on the periphery of the rotor punching sheet 1, convex magnetic steel 4 are correspondingly embedded in the convex magnetic steel grooves 3, eccentric arc curved surfaces 8 corresponding to the convex magnetic steel grooves 3 are arranged on the periphery of the rotor punching sheet 1, pole shoes 9 are formed between the eccentric arc curved surfaces 8 and the upper surface of the convex magnetic steel grooves 3, the thickness of the pole shoes 9 gradually decreases from the center to two ends, and magnetic isolation bridges 10 continuously converging outwards from the end parts of the convex magnetic steel 4 are formed at the outer sides of the convex magnetic steel grooves 3 at the two ends of the pole shoes 9.
The convex magnetic steel 4 adopts a symmetrical structure and comprises a magnetic steel upper arc curved surface 5 and a magnetic steel lower arc curved surface 6 which are symmetrically arranged, the shape of the convex magnetic steel groove 3 is matched with that of the convex magnetic steel 4, and a vertical plane is used for connection and transition between the magnetic steel upper arc curved surface 5 and the magnetic steel lower arc curved surface 6; the curvature radius of the eccentric arc curved surface 8 is smaller than that of the arc curved surface 5 on the magnetic steel.
The upper and lower sides of the magnetic isolation bridge 10 are eccentric arc curved surfaces and arc curved surfaces on the magnetic steel grooves, as shown in fig. 5, the magnetic isolation bridge structure of the convex magnetic steel groove is compared with the magnetic isolation bridge structure of the traditional linear convex magnetic steel motor, and compared with the broken line magnetic isolation bridge of the traditional linear convex magnetic steel groove, the structure formed by smooth transition inner and outer arcs in the invention has the advantages that the stress concentration at the magnetic isolation bridge is reduced under the condition that the thickness of the magnetic isolation bridge is not increased, so that the stability of the motor rotor structure is improved, the motor can operate at higher rotating speed, and the performance of the motor is improved.
The convergence structure of the pole shoe can reduce the leakage rate of the magnetic field and increase the utilization rate of the magnetic field of the convex magnetic steel; the rotor periphery eccentric arc structural design can form unequal air gaps with the motor stator, the air gaps at the middle of the magnetic poles are smaller, and the air gaps at the two sides are larger, so that the air gap magnetic flux density distribution of the outer circle of each pole rotor is close to sinusoidal distribution, and the reduction of cogging torque and torque fluctuation is facilitated.
Specifically, as shown in fig. 2 and 3, the convex circular magnetic steel groove 3 of the invention comprises an upper circular arc curved surface 11 of the magnetic steel groove and a lower circular arc curved surface 12 of the magnetic steel groove, wherein the circle center of the outline line of the eccentric circular arc curved surface 8 is Q1, and the curvature radius is R1; the center of the contour line of the arc curved surface 11 on the magnetic steel groove is Q2, the curvature radius is R2, R1 is less than R2,0 < (R2-R1)/T1 is less than 1, T1 is the distance between the centers Q1 and Q2, the middle thickness of the convex magnetic steel 4 is H2, the end thickness is H1, H1 is less than H2 and less than 3H 1, H1 is more than 2.2 Gair, gair is the average value of the length of an air gap between a rotor and a stator, and the magnetizing direction of the convex magnetic steel 4 is parallel magnetization, so that magnetomotive force inside the convex magnetic steel tends to be in sinusoidal distribution through the structure; the thickness of the pole shoe 9 at the center is H3, the thickness of the two end magnetic isolation bridges 10 is L1, L1 is more than 0.9 and less than 1.2, and H3=2.6×L1.
In order to reduce the weight of the rotor and improve the performance of the motor, the rotor punching sheet 1 of the invention is also uniformly provided with weight reducing holes 13 in the area between the rotating shaft hole 2 and the convex magnetic steel groove 3.
The invention also provides a high-performance servo motor, which uses the motor rotor structure, wherein the servo motor comprises a stator 14 and a rotor, the rotor is concentrically arranged at the inner ring of the stator 14, an air gap 18 is formed between the periphery of the rotor and the stator 14, the stator 14 comprises a laminated stator punching sheet 15 and a winding 16 positioned on the stator punching sheet 15, and the winding 16 is positioned in a stator groove 17 of the stator punching sheet 15.
The rotor punching sheet and the convex magnetic steel structure of the servo motor can be optimized by utilizing a finite element method in the design size, the optimal matching size is sought, so that the air gap magnetic flux density distribution of each pole of the rotor is more similar to the sinusoidal distribution shown in figure 6, and meanwhile, the higher harmonic wave of the air gap magnetic flux density, particularly the nZ/2p subharmonic component, can be better reduced, the subharmonic is the main harmonic for generating cogging torque, Z is the number of teeth of a stator, 2p is the number of poles, n is the integer for enabling the value of nZ/2p to be an integer, the amplitude of the nZ/2p subharmonic can be reduced, the cogging torque can be reduced, the pole number 2p is 10 by way of pole slot matching provided by the invention, and the value of nZ/2p is an integer, namely the integer subharmonic of nZ/2 p=6 when n is an integer multiple of 5. The following table 1 shows the amplitude table of the integral multiple air gap harmonics of 6 in two rotor structures, and the amplitude of the integral multiple harmonics of 6 using the rotor with double-faced convex structure of the invention is reduced, so that the cogging torque of the motor is reduced by 32%, as shown in the following table and fig. 7.
| Air gap harmonic order | Rotor with straight-shaped convex circular magnetic steel structure | The invention relates to a rotor with a double-sided convex magnetic steel structure |
| 6 | 0.0228 | 0.0181 |
| 12 | 0.0133 | 0.0126 |
| 18 | 0.0061 | 0.0055 |
| Total value of | 0.0422 | 0.0362 |
Meanwhile, the no-load counter potential waveform of the motor with the double-faced convex magnetic steel structure is more similar to a sine wave, as shown in fig. 8, the no-load counter potential waveforms of the two motors are compared, and the rotor structure of the motor has the advantages of lower additional loss, higher efficiency, lower temperature rise and smaller torque fluctuation.
As shown in fig. 9-10, the structural form of the double-sided convex magnetic steel increases the magnetomotive force of the middle magnetic field of the convex magnetic steel, can provide higher magnetomotive force on the premise of the same material consumption of the convex magnetic steel, can provide higher torque, improves the torque by 2.5 percent and reduces the torque fluctuation by 19.7 percent compared with the traditional linear convex magnetic steel motor, and meanwhile, when the motor is overloaded, the convex magnetic steel with the double-sided convex structure can resist higher armature current demagnetizing field, has strong demagnetizing capability and strong overload capability, and ensures that the maximum working range of the motor is wider.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (9)
1. The utility model provides a motor rotor structure, its characterized in that, including rotor punching (1), rotor punching (1) center is equipped with motor shaft matched with pivot hole (2), has evenly equiangular interval at rotor punching (1) periphery and has arranged convex circular magnet steel groove (3), corresponds in convex circular magnet steel groove (3) and inlays and be equipped with convex circular magnet steel (4), rotor punching (1) periphery is equipped with eccentric circular arc curved surface (8) corresponding with convex circular magnet steel groove (3), forms pole shoe (9) between eccentric circular arc curved surface (8) and the upper surface of convex circular magnet steel groove (3), and the thickness of pole shoe (9) reduces gradually from the center to both ends.
2. The motor rotor structure according to claim 1, wherein the convex magnetic steel (4) adopts a symmetrical structure, and comprises a magnetic steel upper arc curved surface (5) and a magnetic steel lower arc curved surface (6) which are symmetrically arranged, the shape of the convex magnetic steel groove (3) is matched with that of the convex magnetic steel (4), and a vertical plane is used for connection transition between the magnetic steel upper arc curved surface (5) and the magnetic steel lower arc curved surface (6); the curvature radius of the eccentric arc curved surface (8) is smaller than that of the arc curved surface (5) on the magnetic steel.
3. A rotor structure of an electric motor according to claim 1, characterized in that the two ends of the pole shoe (9) form, outside the convex magnetic steel groove (3), a magnetism isolating bridge (10) which continuously converges from the end of the convex magnetic steel (4) to the outside.
4. The motor rotor structure according to claim 1, wherein the convex magnetic steel groove (3) comprises an upper arc curved surface (11) and a lower arc curved surface (12) of the magnetic steel groove, the circle center of the outline of the eccentric arc curved surface (8) is Q1, and the curvature radius is R1; the circle center of the contour line of the arc curved surface (11) on the magnetic steel groove is Q2, the curvature radius is R2,0 < (R2-R1)/T1 < 1, and T1 is the distance between the circle centers Q1 and Q2.
5. A rotor structure for an electric machine according to claim 1, characterized in that the pole shoe (9) has a thickness H3 in the central position and two end magnetic barriers (10) have a thickness L1, 0.9 < L1 < 1.2, h3=2.6×l1.
6. A rotor structure of an electric machine according to claim 1, characterized in that the thickness of the convex magnetic steel (4) is H2 in the middle, H1 in the end, H1 is 2.5 x H1 < H2 < 3 x H1, and H1>2.2 x gair, gair being the average value of the length of the air gap between the rotor and the stator.
7. A motor rotor structure according to claim 1, characterized in that the magnetizing direction of the convex magnetic steel (4) is parallel magnetizing.
8. A motor rotor structure according to claim 1, characterized in that the rotor punching (1) is evenly provided with lightening holes (13) in the area between the spindle hole (2) and the convex magnetic steel groove (3).
9. A high performance servo motor employing a motor rotor structure as claimed in any one of claims 1 to 8, comprising a stator (14) and a rotor, the rotor being arranged concentrically within the stator (14), an air gap (18) being formed between the periphery of the rotor and the stator (14), the stator (14) comprising laminated stator laminations (15) and windings (16) located on the stator laminations (15), the windings (16) being located within stator slots (17) of the stator laminations (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310358375.4A CN116599255B (en) | 2023-04-06 | 2023-04-06 | Motor rotor structure and high-performance servo motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310358375.4A CN116599255B (en) | 2023-04-06 | 2023-04-06 | Motor rotor structure and high-performance servo motor |
Publications (2)
| Publication Number | Publication Date |
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| CN116599255A true CN116599255A (en) | 2023-08-15 |
| CN116599255B CN116599255B (en) | 2023-11-07 |
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| CN202310358375.4A Active CN116599255B (en) | 2023-04-06 | 2023-04-06 | Motor rotor structure and high-performance servo motor |
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| JP2001178037A (en) * | 1999-12-14 | 2001-06-29 | Hitachi Ltd | Permanent-magnet dynamo-electric machine |
| JP2003164082A (en) * | 2001-11-22 | 2003-06-06 | Hitachi Metals Ltd | Ferrite magnet, rotating machine and production method of ferrite magnet |
| JP2010130884A (en) * | 2008-12-01 | 2010-06-10 | Mitsubishi Electric Corp | Rotating electric machine and method for manufacturing rotating electric machine |
| JP2012105447A (en) * | 2010-11-10 | 2012-05-31 | Mitsubishi Electric Corp | Permanent magnet rotor and manufacturing method thereof |
| CN203312944U (en) * | 2012-05-30 | 2013-11-27 | 三菱电机株式会社 | Embedded-type permanent magnet motor |
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| CN107431421A (en) * | 2015-04-09 | 2017-12-01 | 大众汽车有限公司 | Motor |
| CN110971031A (en) * | 2018-09-29 | 2020-04-07 | 广东威灵电机制造有限公司 | Rotor and motor |
-
2023
- 2023-04-06 CN CN202310358375.4A patent/CN116599255B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11285184A (en) * | 1998-03-27 | 1999-10-15 | Fujitsu General Ltd | Permanent-magnet motor |
| JP2000078780A (en) * | 1998-09-01 | 2000-03-14 | Toyota Motor Corp | Electric motor |
| JP2001178037A (en) * | 1999-12-14 | 2001-06-29 | Hitachi Ltd | Permanent-magnet dynamo-electric machine |
| JP2003164082A (en) * | 2001-11-22 | 2003-06-06 | Hitachi Metals Ltd | Ferrite magnet, rotating machine and production method of ferrite magnet |
| JP2010130884A (en) * | 2008-12-01 | 2010-06-10 | Mitsubishi Electric Corp | Rotating electric machine and method for manufacturing rotating electric machine |
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| JP2016072995A (en) * | 2014-09-26 | 2016-05-09 | パナソニックＩｐマネジメント株式会社 | Embedded magnet type rotor and electric motor including the same |
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| CN110971031A (en) * | 2018-09-29 | 2020-04-07 | 广东威灵电机制造有限公司 | Rotor and motor |
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| Publication number | Publication date |
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| CN116599255B (en) | 2023-11-07 |
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