CN118235313B - Rotor of a synchronous reluctance motor - Google Patents
Rotor of a synchronous reluctance motor Download PDFInfo
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- CN118235313B CN118235313B CN202280075283.9A CN202280075283A CN118235313B CN 118235313 B CN118235313 B CN 118235313B CN 202280075283 A CN202280075283 A CN 202280075283A CN 118235313 B CN118235313 B CN 118235313B
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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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
转子具有：圆筒状的转子铁心(1)，其是将由在径向排列的多个隔磁槽形成磁极的多个磁性钢板层叠而成的；圆板形状的平衡环(2)，其配置于转子铁心(1)的轴向的两端部，由磁体构成；以及非磁体的第1端板(3)及第2端板(4)，它们在轴向被平衡环(2)和转子铁心(1)之间夹持，以使得平衡环(2)不与转子铁心(1)抵接。第1端板(3)及第2端板(4)以一个面与在转子铁心(1)中的内周侧具有隔磁槽的全部磁路重叠的方式与转子铁心(1)抵接，另一个面与平衡环(2)抵接。
The rotor comprises: a cylindrical rotor core (1) formed by laminating a plurality of magnetic steel plates having magnetic poles formed by a plurality of magnetic isolation grooves arranged in a radial direction; a circular plate-shaped balance ring (2) arranged at both axial ends of the rotor core (1) and composed of a magnet; and a first end plate (3) and a second end plate (4) which are non-magnetic and are clamped between the balance ring (2) and the rotor core (1) in the axial direction so that the balance ring (2) does not contact the rotor core (1). The first end plate (3) and the second end plate (4) contact the rotor core (1) in such a manner that one surface overlaps with the entire magnetic path having magnetic isolation grooves on the inner circumference of the rotor core (1), and the other surface contacts the balance ring (2).
Description
Technical Field
The present invention relates to a rotor of a synchronous reluctance motor.
Background
The synchronous reluctance motor generates reluctance torque to the rotor by magnetic flux generated by current flowing through the coils of the stator, thereby obtaining rotational force. A rotor core constituting a rotor of a synchronous reluctance motor is formed by stacking electromagnetic steel plates in a cylindrical shape. The rotor core of the synchronous reluctance motor has a characteristic shape having saliency in order to increase reluctance torque and improve electrical performance. Specifically, the rotor core has a plurality of magnetically isolated grooves arranged in the radial direction so as to block the magnetic flux in the q-axis direction.
In a synchronous reluctance motor, in order to suppress deformation of a rotor core in an axial direction, a structure is used in which a balance ring or an end plate is disposed so as to abut against both end portions of the rotor core in the axial direction. In patent document 1, balance rings are provided on both outer sides in the axial direction of a rotor core having a plurality of slits as magnetism isolating grooves. The balance ring is composed of a1 st ring of a magnetic material and a2 nd ring of a non-magnetic material, and the outer periphery of the 1 st ring and the inner periphery of the 2 nd ring are bonded by heat-fitting or by adhesion or the like. The 1 st ring is formed in a cross shape to avoid the magnetic path between the slits, and is in contact with the rotor core at a portion other than the magnetic path.
Patent document 1 Japanese patent application laid-open No. 2015-104224
Disclosure of Invention
However, in patent document 1, the 1 st ring of the magnetic material is in contact with the rotor core. Therefore, in order to suppress leakage magnetic flux and eddy current loss of the rotor core, the 1 st ring is formed in a complex shape such as a cross shape, which has a problem of increasing cost.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rotor of a synchronous reluctance motor capable of suppressing torque reduction and eddy current loss due to leakage magnetic flux while suppressing axial deformation in each magnetic path of a rotor core at a minimum cost.
In order to solve the above problems and achieve the object, a rotor of a synchronous reluctance motor according to the present invention includes a cylindrical rotor core formed by stacking a plurality of magnetic steel plates having magnetic poles formed by a plurality of magnetic pole grooves arranged in a radial direction, a disk-shaped balance ring disposed at both axial end portions of the rotor core and made of a magnet, and a non-magnet end plate sandwiched between the balance ring and the rotor core in the axial direction so that the balance ring does not come into contact with the rotor core. The end plate is in contact with the rotor core so that one surface overlaps all the magnetic paths having the magnetism isolating grooves on the inner peripheral side of the rotor core, and the other surface is in contact with the balance ring.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the rotor of the synchronous reluctance motor of the present invention, torque reduction and eddy current loss due to leakage magnetic flux can be suppressed while suppressing axial deformation in each magnetic circuit of the rotor core at minimum cost.
Drawings
Fig. 1 is an axial cross-sectional view showing the structure of a rotor of a synchronous reluctance motor according to embodiment 1.
Fig. 2 is a cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 1, and is a cross-sectional view II-II of fig. 1.
Fig. 3 is a cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 1, and is an enlarged view of a portion III in fig. 1.
Fig. 4 is a perspective view showing the structures of the gimbal, the 1 st end plate, and the 2 nd end plate of the synchronous reluctance motor according to embodiment 1.
Fig. 5 is a plan view showing a structure of a rotor core of the synchronous reluctance motor according to embodiment 1.
Fig. 6 is an axial cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 2.
Fig. 7 is a cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 2, and is a cross-sectional view VII-VII of fig. 6.
Detailed Description
Hereinafter, a rotor of the synchronous reluctance motor according to the embodiment will be described in detail with reference to the drawings.
Embodiment 1.
Fig. 1 is an axial cross-sectional view showing the structure of a rotor of a synchronous reluctance motor according to embodiment 1. Fig. 2 is a cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 1, and is a cross-sectional view II-II of fig. 1. Fig. 3 is a cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 1, and is an enlarged view of a portion III in fig. 1. Fig. 4 is a perspective view showing the structures of the gimbal, the 1 st end plate, and the 2 nd end plate of the synchronous reluctance motor according to embodiment 1. Fig. 5 is a plan view showing a structure of a rotor core of the synchronous reluctance motor according to embodiment 1.
As shown in fig. 1, the rotor of the synchronous reluctance motor has a rotor core 1, a gimbal 2, a1 st end plate 3, a2 nd end plate 4, and a shaft 7 as a rotor shaft. A stator, not shown, is provided on the outer side of the rotor. The stator includes a stator core, not shown, and a coil, not shown, that generates a rotating magnetic field. The synchronous reluctance motor generates reluctance torque to the rotor by a rotating magnetic field generated by a current flowing through a coil of the stator, thereby obtaining a rotational force.
As shown in fig. 3, the rotor core 1 has a cylindrical shape and is formed by coaxially stacking a plurality of magnetic steel plates 1 a. The magnetic steel plates 1a may be stacked while being offset from each other in the rotation direction by a slight angle. The rotor core 1 is thermally mounted to the shaft 7. As shown in fig. 2 and 5, the rotor core 1 includes a plurality of magnetism isolating slots 6. The plurality of magnetism isolating grooves 6 are arranged at intervals in the radial direction from the rotation center of the rotor core 1 toward the periphery of the rotor core 1. Each of the magnetism blocking grooves 6 blocks the passage of magnetic flux in the rotor core 1. Each magnetism isolating slot 6 is a hole penetrating the rotor core 1 in the axial direction. The portions of the rotor core 1 other than the magnetism isolating grooves 6 constitute a magnetic circuit 5 including magnetic circuits 5a, 5b, 5c, 5d, and 5 e. The rotor core 1 has a plurality of magnetic pole grooves 6 arranged in the radial direction.
The magnet balance rings 2 are arranged in a circular plate shape at both ends of the rotor core 1 in the axial direction. For rotation balance adjustment, a balance adjustment hole 2a extending in the radial direction is provided in the outer peripheral surface of the balance ring 2. The thickness of the balance ring 2 in the axial direction is ensured to enable the balance adjustment hole 2a to be formed.
As shown in fig. 1 to 4, concentric grooves 2b and 2c are provided in annular shapes for fixing the 1 st end plate 3 and the 2 nd end plate 4 on the end surface of the balance ring 2 facing the rotor core 1. A C-shaped annular 1 st end plate 3 is fitted into the groove 2b, and a C-shaped annular 2 nd end plate 4 is fitted into the groove 2C on the inner peripheral side. The 1 st end plate 3 and the 2 nd end plate 4 are non-magnets. The 1 st end plate 3 and the 2 nd end plate 4 are C-shaped, and have joints 3a and 4a which are gaps between the start point and the end point of the ring.
The 1 st end plate 3 is made larger in outer diameter than the groove 2b, and is inserted into the groove 2b in a state where the width of the joint 3a is compressed so that the diameter of the 1 st end plate 3 becomes smaller. Therefore, if the compression force is released, a force is generated to expand the groove portion 2b, and the 1 st end plate 3 is fixed to the gimbal 2. Similarly, the 2 nd end plate 4 on the inner peripheral side is made larger in outer diameter than the groove portion 2c, and is fixed to the balance ring 2 similarly to the 1 st end plate 3. By providing the joints 3a and 4a, the 1 st end plate 3, the 2 nd end plate 4, and the gimbal 2 can be easily assembled, and the 1 st end plate 3 and the 2 nd end plate 4 can be molded to obtain a manufacturing method with high material yield. In addition, although the annular shape of the 1 st end plate 3 and the 2 nd end plate 4 may be used, in this case, the material yield is deteriorated, and relatively high machining accuracy is required for positioning the 1 st end plate 3 and the 2 nd end plate 4 in the groove portions 2b, 2 c.
The joint 3a of the 1 st end plate 3 and the joint 4a of the 2 nd end plate 4 are disposed diagonally at 180 degrees, and the interval between the joints 3a and 4a is set so that the rotational unbalance caused by the 2 joints 3a and 4a becomes substantially zero.
Half or more of the thickness of the 1 st end plate 3 and the 2 nd end plate 4 in the axial direction protrudes from the balance ring 2, and the distance between the balance ring 2 and the rotor core 1, which is a magnet, is secured to be in contact with the rotor core 1. As described above, the 1 st end plate 3 and the 2 nd end plate 4 are sandwiched between the balance ring 2 and the rotor core 1 in the axial direction so that the balance ring 2 does not abut against the rotor core 1. Since the rotor core 1 restricts the magnetic flux distribution of each magnetic pole by the arrangement of the magnetic circuit 5 and the magnetism isolating grooves 6, and generates reluctance torque, if the balance ring 2 serving as a magnet is too close to the rotor core 1, leakage magnetic flux flows into the balance ring 2, and the torque decreases, or eddy current loss occurs in the balance ring 2 by the leakage magnetic flux. Therefore, the 1 st end plate 3 and the 2 nd end plate 4 ensure a distance so that the balance ring 2 and the rotor core 1 do not abut.
As shown in fig. 2, the 1 st end plate 3 is in contact with all of the magnetic circuits 5a, 5b, 5c, 5d, 5e including the outermost magnetic circuit 5a in the rotor core 1. In this case, among the magnetic circuits 5a, 5b, 5c, 5d having the magnetism isolating grooves 6 on the inner peripheral side, the length of the innermost magnetic circuit 5d is longest, and the magnetic circuits 5a, 5b, 5c, 5d are most likely to be deformed in the axial direction. However, the innermost magnetic circuit 5d is substantially 3-equally in contact with the 2 nd end plate 4 at 2 positions, and the inner magnetic circuit 5c is also in contact with the 2 nd end plate 4 at the center. By setting the 1 st end plate 3, the 2 nd end plate 4, and the rotor core 1 to the positional relationship described above, deformation of the magnetic circuit 5 in the rotor core 1 in the axial direction can be suppressed, and further fatigue failure can be suppressed.
On the other hand, since the balance ring 2 and the 1 st and 2 nd end plates 3 and 4 are abutted on the entire surfaces of the 1 st and 2 nd end plates 3 and 4 when viewed in the axial direction, the deformation of the rotor core 1 in the axial direction can be effectively suppressed.
The balance ring 2 is thermally attached to the shaft 7 in a state of being in contact with the 1 st end plate 3 and the 2 nd end plate 4, similarly to the rotor core 1. In order to more effectively suppress the deformation of the rotor core 1 in the axial direction, it is preferable that the residual pressurizing force is applied to the rotor core 1 in the axial direction by the gimbal 2.
After the rotor core 1 and the balance ring 2 are thermally attached to the shaft 7, balance adjustment is performed. The rotation unbalance is measured, and a phase and a deep balance adjustment hole 2a for canceling the rotation unbalance are formed in the radial direction on the outer peripheral surface of the balance ring 2. In the case where the operation accuracy is high, there is little rotation unbalance, or in the case where the rotation speed is low, etc., if balance adjustment is not required, the balance adjustment hole 2a may not be formed. However, in order to suppress the deformation of the rotor core 1 in the axial direction, an appropriate fastening force of the balance ring 2 and the shaft 7 is required. That is, the balance ring 2 and the shaft 7 need to have appropriate interference and the area of the mating surface.
As described above, according to embodiment 1, since the balance ring 2 of the magnet is not in contact with the rotor core 1 by the 1 st end plate 3 and the 2 nd end plate 4, and the non-magnet 1 st end plate 3 is in contact with the rotor core 1 so that a part of the non-magnet 1 st end plate overlaps all of the magnetic circuits 5a, 5b, 5c, 5d of the plurality of magnetic circuits 5a, 5b, 5c, 5d having the magnetism isolating grooves 6 on the inner peripheral side of the rotor core 1, there is an effect that torque reduction and eddy current loss due to leakage magnetic flux can be suppressed while suppressing deformation in the axial direction of each magnetic circuit 5 of the rotor core 1 at minimum cost.
That is, since the magnet gimbal 2 does not contact the rotor core 1 through the non-magnet 1 st end plate 3 and 2 nd end plate 4, it is not necessary to have a complicated shape to suppress leakage magnetic flux and eddy current loss. Therefore, the gimbal 2 is only required to have a simple annular shape, and therefore the processing cost is suppressed to be low. The non-magnet 1 st end plate 3 is in contact with the rotor core 1 so that a part thereof overlaps all of the magnetic circuits 5a, 5b, 5c, 5d having the magnetism isolating grooves 6 on the inner peripheral side of the rotor core 1. As described above, the magnetic circuits 5a, 5b, 5c, 5d are pressed by the annular 1 st end plate 3 of small volume, so that the deformation of the rotor core 1 in the axial direction can be appropriately suppressed. Further, since the 2 nd end plate 4 presses the long, easily deformable inner magnetic circuits 5c and 5d, deformation of the rotor core 1 in the axial direction can be effectively suppressed.
Embodiment 2.
Fig. 6 is an axial cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 2. Fig. 7 is a cross-sectional view showing the structure of a rotor of the synchronous reluctance motor according to embodiment 2, and is a cross-sectional view VII-VII of fig. 6.
As shown in fig. 6, the rotor of the synchronous reluctance motor has a rotor core 1, a balance ring 12 of magnets, a non-magnet end plate 13, and a shaft 7. A stator, not shown, is provided on the outer side of the rotor. In embodiment 2, the end plate 13 is formed in a disk shape having only a hole into which the shaft 7 is inserted, and the gimbal 12 is formed to have a smaller outer diameter than the disk-shaped end plate 13. The rotor core 1 and the shaft 7 have the same structure as in embodiment 1. That is, the rotor core 1 is formed by coaxially stacking a plurality of magnetic steel plates 1a, and is thermally mounted on the shaft 7. As shown in fig. 7, the rotor core 1 includes a plurality of magnetism isolating slots 6. The portions of the rotor core 1 other than the magnetism isolating grooves 6 constitute a magnetic circuit 5 including magnetic circuits 5a, 5b, 5c, 5d, and 5 e.
End plates 13 arranged in a circular plate shape are in contact with the rotor core 1 at both ends in the axial direction of the rotor core 1. The balance ring 12 is disposed on the outer side of the end plate 13 in the axial direction so as to abut against the end plate 13. That is, the balance ring 12 and the end plate 13 overlap in the axial direction. The balance ring 12 and the end plate 13 are each of a simple disk shape (annular shape) and are not partially coexistent at the same axial position.
The balance ring 12 and the end plate 13 are simple disk-shaped, and therefore both are easy to process. The balance ring 12 is manufactured by, for example, turning round steel or cast iron using a magnet. The end plate 13 is manufactured by, for example, laser cutting of a stainless steel plate using a non-magnet. If strength and rigidity can be ensured, the end plate 13 may be formed using an aluminum alloy plate or the like instead of a stainless steel plate. The balance ring 12 or the end plate 13 may be provided with a hole or a key groove serving a function other than balance adjustment.
The inner diameters of the rotor core 1, the end plate 13, and the balance ring 12 are set to values having appropriate interference with respect to the outer diameter of the shaft 7, and are heat-fitted to the shaft 7. Torque is not applied to the end plate 13, and the end plate 13 is sandwiched by the rotor core 1 and the balance ring 12 in the axial direction, so that the shrink fit can be made smaller. Therefore, the inner diameter of the end plate 13 can be made relatively low in accuracy. In addition, as in embodiment 1, in order to more effectively suppress deformation of rotor core 1 in the axial direction, it is preferable that residual pressing force is applied to rotor core 1 in the axial direction by end plate 13 and balance ring 12.
The outer diameter of the end plate 13 may be preferably the same as the outer diameter of the rotor core 1. This is because if the end plate 13 is set to have a larger outer diameter than the rotor core 1, the rotor is difficult to insert into the stator at the time of motor assembly, and if the end plate 13 is set to have a smaller outer diameter than the rotor core 1, there is a high risk that the magnetic steel plate 1a of the rotor core 1 will be deformed by contact with other objects at the time of transportation or handling of the rotor.
When the outer diameter of the end plate 13 is the same as the outer diameter of the rotor core 1, as shown in fig. 7, the end plate 13 is in contact with all of the magnetic circuits 5a, 5b, 5c, 5d, 5e including the outermost magnetic circuit 5 a. This is because if the end plate 13 does not contact the outermost magnetic circuit 5a, the deformation of the outermost magnetic circuit 5a in the axial direction cannot be suppressed. Conversely, if the end plate 13 is in contact with the outermost magnetic circuit 5a, the end plate 13 is in contact with all the magnetic circuits 5 because of its circular plate shape.
The balance ring 12 has a smaller outer diameter than the end plate 13. The gimbal 12 is in contact with the end plate 13 so as to overlap the magnetic circuits 5c and 5d of the 3 rd and 4 th layers from the outer periphery when viewed in the axial direction, but not overlap the magnetic circuits 5a and 5b of the 1 st and 2 nd layers from the outer periphery. The reason why the outer diameter of the gimbal 12 is smaller than that of the end plate 13 is that the torque reduction and eddy current loss due to the leakage magnetic flux are effectively suppressed, and from this point of view, the number of overlapping magnetic circuits and the overlapping area can be as small as possible. If other magnets are close to the vicinity of the gap between the rotor core 1 and a stator core not shown, that is, the vicinity of the outer periphery of the rotor core 1, reluctance torque generated by restricting the magnetic flux distribution of each magnetic pole by the arrangement of the magnetic circuit 5 and the magnetism isolating grooves 6 is reduced, and therefore the gimbal 12 is separated from the vicinity of the outer periphery of the rotor core 1 in a range where the function is not impaired. Further, if the outer diameter of the gimbal 12 is reduced to a point where the gimbal 12 does not overlap the magnetism isolating groove 6 in the axial direction, the depth of the gimbal adjustment hole 12a cannot be ensured, and therefore there is a lower limit on the outer diameter of the gimbal 12.
Therefore, it is preferable that the end plate 13 has an outer diameter overlapping with the outermost magnetic circuit 5a in the rotor core 1, and the balance ring 12 has an outer diameter smaller than the end plate 13, and has at least an outer diameter not overlapping with the outermost magnetic isolation groove 6.
The relationship between the thickness of the magnetic steel plate 1a of the rotor core 1, the thickness of the end plate 13, and the thickness of the balance ring 12 preferably satisfies that the thickness×3 of the magnetic steel plate 1a of the rotor core 1 is equal to or less than the thickness of the end plate 13 is equal to or less than the thickness/3 of the balance ring 12. That is, the thickness of the end plate 13 is 3 times or more the thickness of the magnetic steel plate 1a of the rotor core 1 and less than or equal to one third the thickness of the balance ring 12. For example, the magnetic steel plate 1a of the rotor core 1 has a thickness of 0.5mm, the end plate 13 has a thickness of 3.2mm, and the gimbal 12 has a thickness of 10mm. Under the same load applied, the same length of plate flexes in proportion to the cube of the thickness. When the young's modulus is the same, the ratio of deflection thereof is magnetic steel plate 1a to end plate 13 to gimbal 12=1:262:8000. Therefore, it is found that the gimbal 12 has sufficient rigidity. The end plate 13 has lower rigidity than the balance ring 12, but the portion abutting the balance ring 12 does not substantially deform by the balance ring 12, so that the deformation in the axial direction of the rotor core 1 may be suppressed in the range from the outer diameter of the balance ring 12 to the outer diameter of the rotor core 1. For the above reasons, the thickness of the end plate 13 is set in consideration of the outer diameter of the balance ring 12.
As described above, by setting the dimensional relationships of the rotor core 1, the gimbal 12, and the end plates 13, it is possible to suppress torque reduction and eddy current loss due to leakage magnetic flux while suppressing deformation in the axial direction of each magnetic circuit 5 of the rotor core 1 at minimum cost.
As described above, according to embodiment 2, since the balance ring 12 of the magnet is not in contact with the rotor core 1 by the end plate 13 of the non-magnet, and the end plate 13 is in contact with the rotor core 1 so as to overlap all of the magnetic paths 5a, 5b, 5c, 5d having the magnetism isolating grooves 6 on the inner peripheral side in the rotor core 1, there is an effect that torque reduction and eddy current loss due to leakage magnetic fluxes can be suppressed while suppressing deformation in the axial direction in each of the magnetic paths 5 of the rotor core 1 at minimum cost, as in embodiment 1. Since the gimbal 12 and the end plate 13 have a simple disk shape, the machining cost is extremely low.
The configuration shown in the above embodiment represents a part of the content of the present invention, and may be combined with other known techniques, and may be appropriately combined, or a part of the configuration may be omitted or changed without departing from the scope of the present invention.
Description of the reference numerals
The rotor comprises a rotor core, a 1a magnetic steel plate, 2 and 12 balance rings, 2a and 12a balance adjustment holes, 2b and 2c groove parts, a 3 st end plate, a 3a and 4a joint, a4 nd end plate, 5 a-5 e magnetic circuits, 6 magnetism isolating grooves, 7 shafts and 13 end plates.
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2022/008574 WO2023166550A1 (en) | 2022-03-01 | 2022-03-01 | Rotor for synchronous reluctance motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118235313A CN118235313A (en) | 2024-06-21 |
| CN118235313B true CN118235313B (en) | 2024-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202280075283.9A Active CN118235313B (en) | 2022-03-01 | 2022-03-01 | Rotor of a synchronous reluctance motor |
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| Country | Link |
|---|---|
| JP (1) | JP7183487B1 (en) |
| CN (1) | CN118235313B (en) |
| WO (1) | WO2023166550A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024247041A1 (en) * | 2023-05-29 | 2024-12-05 | 日産自動車株式会社 | Rotating electric machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005176530A (en) * | 2003-12-12 | 2005-06-30 | Meidensha Corp | Rotation balance correction structure of permanent magnet type rotating electrical machine |
| CN105103420A (en) * | 2013-03-28 | 2015-11-25 | 东芝三菱电机产业系统株式会社 | Synchronous reluctance motor and rotor for synchronous reluctance motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011172432A (en) * | 2010-02-22 | 2011-09-01 | Ee C Ii Tec Kk | Rotor of embedded magnet synchronous motor |
| JP6220651B2 (en) * | 2013-11-25 | 2017-10-25 | オークマ株式会社 | Synchronous motor rotor |
| WO2018212054A1 (en) * | 2017-05-16 | 2018-11-22 | ダイキン工業株式会社 | Rotor |
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2022
- 2022-03-01 CN CN202280075283.9A patent/CN118235313B/en active Active
- 2022-03-01 JP JP2022552984A patent/JP7183487B1/en active Active
- 2022-03-01 WO PCT/JP2022/008574 patent/WO2023166550A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005176530A (en) * | 2003-12-12 | 2005-06-30 | Meidensha Corp | Rotation balance correction structure of permanent magnet type rotating electrical machine |
| CN105103420A (en) * | 2013-03-28 | 2015-11-25 | 东芝三菱电机产业系统株式会社 | Synchronous reluctance motor and rotor for synchronous reluctance motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7183487B1 (en) | 2022-12-05 |
| CN118235313A (en) | 2024-06-21 |
| WO2023166550A1 (en) | 2023-09-07 |
| JPWO2023166550A1 (en) | 2023-09-07 |
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