CN116633052A - Multilayer series magnetic circuit permanent magnet synchronous motor - Google Patents
Multilayer series magnetic circuit permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN116633052A CN116633052A CN202310346375.2A CN202310346375A CN116633052A CN 116633052 A CN116633052 A CN 116633052A CN 202310346375 A CN202310346375 A CN 202310346375A CN 116633052 A CN116633052 A CN 116633052A
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- Prior art keywords
- shaped
- permanent magnet
- grooves
- permanent magnets
- synchronous motor
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000004907 flux Effects 0.000 abstract description 9
- 230000010349 pulsation Effects 0.000 abstract description 8
- 238000004804 winding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 235000013580 sausages Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- H02K1/278—Surface mounted magnets; Inset magnets
-
- 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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The application discloses a multilayer series magnetic circuit permanent magnet synchronous motor, which is provided with a stator and a rotor, wherein m surface-mounted permanent magnets are uniformly arranged on the outer circumferential surface of a rotor core, and m is an even number; the inside of the rotor core is uniformly and alternately provided with m V-shaped through grooves and m Ʌ through grooves along the circumferential direction, the V-shaped through grooves are in one-to-one correspondence with the surface-mounted permanent magnets, the openings of the V-shaped through grooves are opposite to the surface-mounted permanent magnets, and the tips of the V-shaped through grooves face the center of the rotor core; Ʌ -shaped through grooves are distributed along the radial direction of the rotor core; v-shaped permanent magnets are placed in the V-shaped through grooves, and Ʌ -shaped permanent magnets are placed in the Ʌ -shaped through grooves. According to the application, the surface-mounted permanent magnet, the V-shaped permanent magnet and the Ʌ -shaped permanent magnet form a series permanent magnet circuit structure, and the magnetomotive forces of the permanent magnets are overlapped, so that the main magnetic flux is enhanced, the torque density is improved, the torque pulsation is reduced, and the requirements of direct drive application on high torque density and low torque pulsation can be met.
Description
Technical Field
The application relates to a motor, in particular to a multilayer series magnetic circuit permanent magnet synchronous motor.
Background
With the increasing prominence of energy problems and the rapid development of high and new technologies such as wind power generation, electric automobiles, sea wave power generation and the like, how to further improve the power density and the torque density of a motor system in a low-speed running state becomes a research hot spot in the field of direct driving. The traditional surface-mounted permanent magnet synchronous motor has a simple structure, but the torque density of the traditional surface-mounted permanent magnet synchronous motor at a low speed is not high enough, and the requirements of direct drive application occasions cannot be completely met; compared with a surface-mounted permanent magnet synchronous motor, the embedded synchronous motor utilizing the V-shaped permanent magnet can improve the torque performance of the motor in low-speed operation, but the leakage coefficient and the cogging torque are correspondingly improved. Therefore, how to increase the torque density of the permanent magnet synchronous motor and reduce the cogging torque of the motor aiming at the direct drive application requirement is a problem to be solved.
Disclosure of Invention
The application aims to: the application aims to provide a multilayer series magnetic circuit permanent magnet synchronous motor which can meet the requirements of direct drive application occasions on low-speed large torque and torque pulsation reduction.
In order to achieve the above object, the present application provides the following solutions: a multilayer series magnetic circuit permanent magnet synchronous motor is provided with a stator and a rotor, and is characterized in that m surface-mounted permanent magnets are uniformly arranged on the outer circumferential surface of a rotor core, and m is an even number; the inside of the rotor core is uniformly and alternately provided with m V-shaped through grooves and m Ʌ through grooves along the circumferential direction, the V-shaped through grooves are in one-to-one correspondence with the surface-mounted permanent magnets, the openings of the V-shaped through grooves are opposite to the surface-mounted permanent magnets, and the tips of the V-shaped through grooves face the center of the rotor core; Ʌ through grooves are uniformly distributed along the rotor core; the opening of the Ʌ -shaped through groove is opposite to the center of the rotor core, and the tip of the Ʌ -shaped through groove faces to the middle of the two surface-mounted permanent magnets; v-shaped permanent magnets are placed in the V-shaped through grooves, and Ʌ -shaped permanent magnets are placed in the Ʌ -shaped through grooves.
Further, rectangular permanent magnet blocks are placed in two sausage-shaped side wings of the V-shaped through groove, and the V-shaped permanent magnet is composed of six rectangular permanent magnet blocks; rectangular permanent magnet blocks are placed in two sausage side wings of the Ʌ -shaped through groove, and the Ʌ -shaped permanent magnet consists of six rectangular permanent magnet blocks.
Further, the surface-mounted permanent magnet adopts a radial alternating magnetizing mode, six permanent magnet blocks of the V-shaped permanent magnet are oppositely or oppositely magnetized along the direction vertical to the length of the V-shaped permanent magnet, and the polarities of the surfaces of the surface-mounted permanent magnet, which are opposite to the V-shaped permanent magnet, are different; the magnetizing direction of the Ʌ -shaped permanent magnet is the same as that of the adjacent V-shaped permanent magnets, the polarities of the opposite surfaces of the Ʌ -shaped permanent magnets and the adjacent V-shaped permanent magnets at the two tangential sides are different, and the polarities of the opposite surfaces of the three rectangular permanent magnets at the left side and the three permanent magnets at the right side of the same Ʌ -shaped through groove are different.
Furthermore, magnetic barriers are arranged at two ends of each rectangular permanent magnet block in the length extending direction, and epoxy resin matrix composite materials are filled in the rectangular permanent magnet blocks.
Further, an air gap is left between the stator and the rotor.
Further, the stator slots of the stator core are semi-closed slots.
According to the specific embodiment provided by the application, the application discloses the following technical effects:
(1) The traditional surface-mounted permanent magnet synchronous motor has the advantages that as the inductance of the alternating-direct axis is approximately equal, the reluctance torque is zero, and the torque output depends on the permanent magnet torque; the application embeds the V-shaped permanent magnet and spoke permanent magnet on the rotor, and the magnetic circuit of the orthogonal axis is asymmetric, so that the inductance of the orthogonal axis is not equal any more, the difference between the inductance of the orthogonal axis is utilized to generate reluctance torque, and the torque output is jointly provided by the permanent magnet torque and the reluctance torque, thereby improving the torque output capability of the motor.
(2) Compared with the traditional built-in V-shaped permanent magnet synchronous motor, the surface-mounted permanent magnet, the V-shaped permanent magnet and the Ʌ -shaped permanent magnet have the characteristic of a series permanent magnet circuit, on one hand, the main magnetic flux is enhanced by superposition of magnetomotive force of the permanent magnets, and the torque density of the motor is improved; on the other hand, the multilayer series magnetic circuit structure can improve the demagnetization resistance of the permanent magnet material to a certain extent.
(3) Compared with the traditional built-in V-shaped permanent magnet synchronous motor, the V-shaped permanent magnet and the Ʌ -shaped permanent magnet adopt sectional type, so that eddy current loss can be reduced.
(4) Compared with the traditional built-in V-shaped permanent magnet synchronous motor, the application improves the waveform of the air gap flux density, reduces the harmonic distortion rate of no-load back electromotive force and reduces the torque pulsation output by the motor.
(5) Compared with the traditional built-in permanent magnet synchronous motor, the surface-mounted permanent magnet provides a magnetic circuit capable of hinging a stator winding for the original leakage magnetic flux, so that the leakage magnetic flux coefficient is reduced, the power factor is increased, and the power density is increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the drawings needed in the embodiments of the present application, and it is obvious that the drawings described below are only embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a multilayer series magnetic circuit permanent magnet synchronous motor according to an embodiment of the present application;
FIG. 2 is a schematic view of a stator according to an embodiment of the present application;
FIG. 3 is a schematic view of a rotor in an embodiment of the present application;
fig. 4 is a schematic structural view of a rotor core according to an embodiment of the present application;
FIG. 5 is a schematic view of the magnetization direction of a permanent magnet according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a Ʌ permanent magnet in accordance with an embodiment of the application;
FIG. 7 is a schematic view of V-shaped and Ʌ -shaped permanent magnets in an embodiment of the application;
FIG. 8 is a distribution diagram of magnetic field lines of a permanent magnet in an embodiment of the application;
fig. 9 is a graph showing the comparison of output torque of a permanent magnet synchronous motor and that of a conventional permanent magnet synchronous motor according to an embodiment of the present application;
reference numerals: 1, a stator; 2, a rotor; 3, rotating shaft; 11, a stator core; 12, stator slots; 21, a rotor core; 22, surface-mounted permanent magnets; 23, v-shaped permanent magnets; 24, Ʌ permanent magnets; 25, V-shaped through grooves; 26, Ʌ shaped through slots; 27, magnetic barriers; 231, left V-shaped permanent magnet; 232, right V-shaped permanent magnets; 241, Ʌ three rectangular permanent magnets on the left side; 242, Ʌ of the three rectangular permanent magnets on the right side.
Description of the embodiments
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present application based on the embodiments of the present application.
Fig. 1 shows a multilayer series magnetic circuit permanent magnet synchronous motor provided by an embodiment of the application, which comprises a stator 1, a rotor 2 and a rotating shaft 3, wherein the rotor 2 is fixedly sleeved on the rotating shaft 3 and is arranged inside the stator 1, and a radial air gap is reserved between the rotor 2 and the stator 1.
As shown in fig. 2, the stator 1 includes a stator core 11 and a stator winding, and a stator slot 12 inside the stator core 11 adopts a half-closed slot to reduce the effective air gap length, reduce core surface loss and intra-tooth pulse vibration loss, thereby improving the power factor; meanwhile, the semi-closed slot die is firm and durable, the slot area utilization rate is high, and the service life of slot insulation is long. A single-layer stator winding is placed in a stator slot 12 inside the stator core 11.
As shown in fig. 3 and 4, the rotor 2 includes a rotor core 21, 4 surface-mounted permanent magnets 22 are uniformly arranged on the outer circumferential surface of the rotor core 21, 4V-shaped through slots 25 are uniformly distributed in the rotor core 21 along the circumferential direction, the V-shaped through slots 25 are in one-to-one correspondence with the surface-mounted permanent magnets 22, the openings of the V-shaped through slots 25 are opposite to the surface-mounted permanent magnets 22, and the tips of the V-shaped through slots 25 face the center of the rotor core 21; rectangular permanent magnet blocks are fixedly embedded in two sausage-shaped side wings of each V-shaped through groove 25, and six rectangular permanent magnet blocks jointly form a V-shaped permanent magnet 23.Ʌ -shaped through grooves 26 with openings facing the center of the rotor core 21 are formed in the middle of any two adjacent V-shaped through grooves 25 on the rotor core 21, the Ʌ -shaped through grooves 26 are uniformly distributed along the rotor core 21, and the tips of the Ʌ -shaped through grooves 26 face the middle of two surface-mounted permanent magnets 22; rectangular permanent magnet blocks are fixedly embedded in two sausage-shaped side wings of each Ʌ -shaped through groove 26, and the six rectangular permanent magnet blocks jointly form the V-shaped permanent magnet 24. Magnetic barriers 27 are arranged at two ends of the Ʌ permanent magnet blocks 24 and the six rectangular permanent magnet blocks forming the V-shaped permanent magnet 23 in the length extending direction respectively, and epoxy resin matrix composite materials are filled in the magnetic barriers.
It should be noted that the surface-mounted permanent magnet 22, the V-shaped permanent magnet 23, and the Ʌ -shaped permanent magnet 24 given in the embodiment of the present application are all 4, and are merely exemplary. According to the need, the number of the rotor cores 21 may be 2, 6, 8 or … …, and the structure of the rotor cores 21 may be adaptively adjusted, which can be achieved by those skilled in the art without any inventive effort.
As shown in fig. 5, 6 and 7, the surface-mounted permanent magnet 22 adopts a radial alternating magnetizing mode, six rectangular permanent magnet blocks of the V-shaped permanent magnet 23 are oppositely or reversely magnetized along the direction perpendicular to the length of the rectangular permanent magnet blocks, and the polarities of the surfaces of the surface-mounted permanent magnet 22 opposite to the V-shaped permanent magnet 23 are different. The magnetizing direction of the Ʌ -shaped permanent magnet 241 is the same as that of the adjacent left V-shaped permanent magnet 231, and the polarities of the surfaces of the Ʌ -shaped permanent magnet 241 opposite to the adjacent V-shaped permanent magnets 231 on the two tangential sides are different; the magnetizing direction of the Ʌ -shaped permanent magnet 242 is the same as that of the adjacent right V-shaped permanent magnet 232, and the polarities of the surfaces of the Ʌ -shaped permanent magnet 242 opposite to the adjacent V-shaped permanent magnets 232 on the two tangential sides are different; the three rectangular permanent magnets 241 on the left side of the same Ʌ -shaped through slot 26 are opposite to the three permanent magnets 242 on the right side in polarity. Therefore, the surface-mounted permanent magnet 22, the V-shaped permanent magnet 23 and the Ʌ -shaped permanent magnet 24 have the characteristic of permanent magnet magnetic circuit series connection, magnetomotive force is overlapped, main magnetic flux is enhanced, and torque density is improved, as shown in fig. 8. Because the rotor is internally provided with the V-shaped permanent magnets 23 and the Ʌ -shaped permanent magnets 24, the internal AC-DC axis magnetic circuit of the rotor is asymmetric, so that the AC-DC axis inductances are not equal any more, and the difference between the AC-DC axis inductances generates reluctance torque. The surface-mounted permanent magnet 22 provides a magnetic circuit capable of hinging the stator winding for the original leakage magnetic flux, so that the leakage magnetic flux coefficient is reduced, the power factor is increased, and the power density is increased.
Fig. 9 shows output torque waveforms of the motor structure, the conventional V-type permanent magnet synchronous motor and the surface-mounted permanent magnet synchronous motor obtained by simulation under the premise of the same stator structure, electromagnetic load, permanent magnet volume and simulation parameters. The results show that the motor provided by the application can provide larger average output torque and smaller torque pulsation, so that better torque output performance can be obtained compared with the traditional surface-mounted and built-in permanent magnet synchronous motors. In practical driving system application, torque pulsation can be further weakened through stator and rotor pole pair numbers, winding connection, stator and rotor pole arc optimization and the like.
In summary, the permanent magnet synchronous motor provided by the embodiment of the application forms a series permanent magnet circuit structure through the three groups of permanent magnets of the surface-mounted permanent magnet, the V-shaped permanent magnet and the Ʌ -shaped permanent magnet, and magnetomotive forces of the permanent magnets are overlapped, so that main magnetic flux is enhanced, torque density is improved, torque pulsation is reduced, and the requirements of direct driving application on high torque density and low torque pulsation can be met.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions that may be easily conceived by those skilled in the art within the scope of the present application should be included in the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (6)
1. The multilayer series magnetic circuit permanent magnet synchronous motor is provided with a stator (1) and a rotor (2), and is characterized in that m surface-mounted permanent magnets (22) are uniformly arranged on the outer circumferential surface of a rotor core (21), and m is an even number; the inside of the rotor core (21) is uniformly and alternately provided with m V-shaped through grooves (25) and m Ʌ -shaped through grooves (26) along the circumferential direction, the V-shaped through grooves (25) are in one-to-one correspondence with the surface-mounted permanent magnets (22), the openings of the V-shaped through grooves (25) are opposite to the surface-mounted permanent magnets (22), and the tips of the V-shaped through grooves (25) face the center of the rotor core (21); Ʌ -shaped through grooves (26) are uniformly distributed along the rotor core (21); the opening of the Ʌ -shaped through groove (26) is opposite to the center of the rotor core (21), and the tip of the Ʌ -shaped through groove (26) faces to the middle of the two surface-mounted permanent magnets (22); a V-shaped permanent magnet (23) is arranged in the V-shaped through groove (25), and a Ʌ -shaped permanent magnet (24) is arranged in the Ʌ -shaped through groove (26).
2. Permanent magnet synchronous motor according to claim 1, characterized in that rectangular permanent magnets are placed in the two sausage-shaped flanks of the V-shaped through slots (25), the V-shaped permanent magnets (23) being composed of six rectangular permanent magnets; rectangular permanent magnet blocks are placed in two sausage-shaped side wings of the Ʌ -shaped through groove (26), and the Ʌ -shaped permanent magnet (24) is composed of six rectangular permanent magnet blocks.
3. The permanent magnet synchronous motor according to claim 2, wherein the surface-mounted permanent magnet (22) adopts a radial alternating magnetizing mode, six permanent magnet blocks of the V-shaped permanent magnet (23) are oppositely or reversely magnetized along a direction perpendicular to the length of the six permanent magnet blocks, and the polarities of the surfaces of the surface-mounted permanent magnet (22) opposite to the V-shaped permanent magnet (23) are different; the magnetizing direction of the Ʌ -shaped permanent magnet (241) is the same as that of the adjacent left V-shaped permanent magnet (231), and the polarities of the surfaces of the Ʌ -shaped permanent magnet (241) opposite to the adjacent V-shaped permanent magnets (231) at the two tangential sides are different; the magnetizing direction of the Ʌ -shaped permanent magnet (242) is the same as that of the adjacent right V-shaped permanent magnet (232), and the polarities of the surfaces of the Ʌ -shaped permanent magnet (242) opposite to the adjacent V-shaped permanent magnets (232) at the two tangential sides are different; the three rectangular permanent magnets (241) on the left side of the same Ʌ -shaped through groove (26) are different in polarity from the opposite surfaces of the three permanent magnets (242) on the right side.
4. Permanent magnet synchronous motor according to claim 2, characterized in that the two ends of the length extension direction of each of the Ʌ permanent magnet blocks (24) and the rectangular permanent magnet blocks forming the V-shaped permanent magnet (23) are provided with magnetic barriers (27), and the epoxy resin matrix composite is filled in the permanent magnet synchronous motor.
5. Permanent magnet synchronous motor according to claim 1, characterized in that an air gap is left between the stator (1) and the rotor (2).
6. Permanent magnet synchronous motor according to claim 1, characterized in that the stator slots (12) of the stator core (11) are semi-closed slots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310346375.2A CN116633052A (en) | 2023-04-03 | 2023-04-03 | Multilayer series magnetic circuit permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310346375.2A CN116633052A (en) | 2023-04-03 | 2023-04-03 | Multilayer series magnetic circuit permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116633052A true CN116633052A (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310346375.2A Pending CN116633052A (en) | 2023-04-03 | 2023-04-03 | Multilayer series magnetic circuit permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116633052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318343A (en) * | 2023-10-10 | 2023-12-29 | 淮阴工学院 | Permanent magnet synchronous motor rotor structure with low torque pulsation |
| CN117767610A (en) * | 2023-12-12 | 2024-03-26 | 淮阴工学院 | Double-magnetic-circuit permanent magnet synchronous motor rotor structure |
-
2023
- 2023-04-03 CN CN202310346375.2A patent/CN116633052A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318343A (en) * | 2023-10-10 | 2023-12-29 | 淮阴工学院 | Permanent magnet synchronous motor rotor structure with low torque pulsation |
| CN117767610A (en) * | 2023-12-12 | 2024-03-26 | 淮阴工学院 | Double-magnetic-circuit permanent magnet synchronous motor rotor structure |
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