CN107370265B - Oblique-pole rotor iron core and iron core punching sheet thereof, oblique-pole rotor and motor - Google Patents
Oblique-pole rotor iron core and iron core punching sheet thereof, oblique-pole rotor and motor Download PDFInfo
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- CN107370265B CN107370265B CN201710538258.0A CN201710538258A CN107370265B CN 107370265 B CN107370265 B CN 107370265B CN 201710538258 A CN201710538258 A CN 201710538258A CN 107370265 B CN107370265 B CN 107370265B
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- iron core
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- pole rotor
- stamped sheet
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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
-
- 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
Abstract
The invention discloses an oblique-pole rotor iron core, an iron core punching sheet, an oblique-pole rotor and a motor, wherein the oblique-pole rotor iron core comprises: the plurality of iron core segments are coaxially and sequentially arranged, each iron core segment comprises a plurality of axially laminated iron core stamped sheets, the periphery of each iron core stamped sheet is provided with a plurality of outward convex parts which are distributed along the circumferential direction of the iron core stamped sheet and protrude outwards, a plurality of axial through holes which are spaced along the circumferential direction of the iron core stamped sheet and correspond to the outward convex parts one by one are arranged in each iron core stamped sheet, each outward convex part and each axial through hole are not symmetrical in the circumferential direction of the iron core segment, the outward convex parts and the axial through holes on each iron core segment are respectively overlapped, the outward convex parts and the axial through holes on the plurality of iron core segments are respectively staggered in the circumferential direction of the iron core segment, and the axial through holes on the plurality of iron core segments are overlapped to form magnet slots which extend along the axial direction of the iron; the permanent magnets are inserted into the magnet grooves in a one-to-one correspondence mode. The skewed pole rotor core disclosed by the embodiment of the invention has a good skewed pole effect and good manufacturability.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an oblique-pole rotor core, an iron core punching sheet of the oblique-pole rotor core, an oblique-pole rotor with the oblique-pole rotor core and a motor.
Background
The motor, especially the permanent magnet motor, can generate complex air gap harmonics due to slot opening and local saturation, and further generate induced voltage harmonics and torque pulsation, which are not beneficial to the stable control and operation of the motor. In practice, the rotor chute is usually used to attenuate the effect of air gap harmonics. Due to the structural particularity of the built-In Permanent Magnet (IPM) rotor, the built-In Permanent Magnet (IPM) rotor can only adopt a form that a permanent magnet and a rotor iron core are respectively segmented to perform pole inclination, and the manufacturability is poor, so that the improvement of large-scale production efficiency is not facilitated.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the oblique-pole rotor iron core which has a good oblique-pole effect and good manufacturability.
The invention also provides a skewed pole rotor with the skewed pole rotor iron core.
The invention also provides a motor with the oblique-pole rotor.
The invention also provides an iron core punching sheet of the oblique-pole rotor iron core.
The skewed pole rotor core according to an embodiment of the present invention includes: the plurality of iron core segments are coaxially and sequentially arranged, each iron core segment comprises a plurality of axially laminated iron core stamped sheets, a through hole is formed in the middle of each iron core stamped sheet, the periphery of each iron core stamped sheet is provided with a plurality of outward convex parts which are distributed along the circumferential direction of the iron core stamped sheet, a plurality of axial through holes which are spaced along the circumferential direction of the iron core stamped sheet, are adjacent to the periphery of the iron core stamped sheet and are in one-to-one correspondence with the outward convex parts are formed in each iron core stamped sheet, each outward convex part and each axial through hole are not symmetrical in the circumferential direction of the iron core segment, the outward convex parts and the axial through holes on each iron core segment are respectively overlapped, the outward convex parts and the axial through holes on the plurality of iron core segments are respectively staggered in the circumferential direction of the iron core segments, and the axial through holes on the plurality of iron core segments are overlapped to form magnet grooves which extend along the axial direction of the; the permanent magnets are inserted into the magnet grooves in a one-to-one correspondence mode.
The skewed pole rotor core disclosed by the embodiment of the invention has the advantages of good skewed pole effect and good manufacturability.
In addition, the oblique-pole rotor core according to the above embodiment of the present invention may further have the following additional technical features:
according to some embodiments of the invention, at least a portion of the axial through hole is provided on the male part.
In the oblique-pole rotor core according to one embodiment of the present invention, the permanent magnet is formed to have a square shape in axial cross section.
Optionally, the axial section of the permanent magnet is formed into a long strip shape, and the length direction of the long strip shape is perpendicular to the radial direction of the iron core segment or extends along the radial direction of the iron core segment.
In some embodiments of the present invention, the axial through hole is formed in a long strip shape and the extending direction of the axial through hole is not perpendicular to the bisector of the central angle corresponding to the convex portion.
Optionally, the outer edge of the outer protrusion extends in an arc.
According to some embodiments of the invention, the number of the iron core segments is two, the iron core sheets of the two iron core segments are the same, and one of the iron core sheets is turned 180 degrees relative to the other iron core sheet in the axial direction of the skewed pole rotor core.
Optionally, the staggered angle of the rotor sheets of two adjacent core segments is β/N, where β is a rotor slant angle, and N is the number of the core segments.
A skewed pole rotor according to an embodiment of the invention includes a skewed pole rotor core according to an embodiment of the invention.
A motor according to an embodiment of the invention comprises a skewed pole rotor according to an embodiment of the invention.
According to the iron core punching sheet of the oblique-pole rotor iron core, the middle of each iron core punching sheet is provided with the through hole, the outer periphery edge of each iron core punching sheet is provided with the plurality of outward convex parts which are distributed along the circumferential direction of the iron core punching sheet and protrude outwards, the inner part of each iron core punching sheet is provided with the plurality of axial through holes which are spaced along the circumferential direction of the iron core punching sheet, are adjacent to the outer periphery edge of the iron core punching sheet and correspond to the plurality of outward convex parts one by one, and each outward convex part and the corresponding axial through hole are not symmetrical along the circumferential direction of the iron.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a skewed pole rotor core according to an embodiment of the invention;
FIG. 2 is a schematic exploded view of a skewed pole rotor core according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of one core segment of a skewed pole rotor core according to an embodiment of the invention;
fig. 4 is a schematic structural view of another core segment of a skewed pole rotor core according to an embodiment of the invention;
fig. 5 is a schematic laminated view of two core segments of a skewed pole rotor core according to an embodiment of the invention.
Reference numerals:
a skewed pole rotor core 100;
an iron core segment 10; a permanent magnet 20;
an iron core punching sheet 11; a through hole 101; an outer protrusion 102; an axial through hole 103; a magnet slot 110; a shaft hole 120.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below are exemplary embodiments for explaining the present invention with reference to the drawings and should not be construed as limiting the present invention, and those skilled in the art can make various changes, modifications, substitutions and alterations to the embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
In the description of the present invention, it is to be understood that the terms "length," "inner," "outer," "axial," "radial," "circumferential," and the like, as used herein, refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The skewed pole rotor core 100 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 5, a skewed pole rotor core 100 according to an embodiment of the present invention may include: two core segments 10 and eight permanent magnets 20. The two core segments 10 may be coaxially arranged in sequence, one before the other after, and the two core segments 10 may or may not be connected to each other. The eight permanent magnets 20 are distributed along the circumferential direction of the core segment 10 and are respectively inserted into the core segment 10, and the number of rotor poles of the skewed-pole rotor core 100 is eight.
Here, the two core segments 10 and the eight permanent magnets 20 are described only as an example, and in the present invention, the number of the core segments 10 and the permanent magnets 20 is not particularly limited, and may be specifically set according to the specific situation, for example, the number of required rotor poles, etc.
Each core segment 10 may include a plurality of axially stacked core laminations 11, that is, each core segment 10 includes a plurality of core laminations 11, and the plurality of core laminations 11 are stacked in the axial direction of the core segment 10, where the axial direction of the core segment 10 is also the axial direction of the core laminations 11, that is, the axial direction of the skewed pole rotor core 100.
The core segment 11 will be described in detail below. Referring to fig. 1 to 5, a through hole 101 is formed in a central portion of each core segment 11, and the through holes 101 of the plurality of core segments 10 may be stacked to form a shaft hole 120, and a rotating shaft may be installed in the shaft hole 120. The outer periphery of each core punching sheet 11 has a plurality of outer protrusions 102, and the plurality of outer protrusions 102 are distributed along the circumferential direction of the core punching sheet 11 and protrude outward, where outward may be understood as a direction away from the through hole 101, for example, the outer protrusions 102 may extend in a radial direction of the core punching sheet 11 toward a direction away from the through hole 101.
As shown in fig. 3 to 5, each core sheet 11 is provided with a plurality of axial through holes 103, each axial through hole 103 penetrates through the core sheet 11 along an axial direction of the core sheet 11, the plurality of axial through holes 103 correspond to the plurality of outward protruding portions 102 one to one, and the axial through holes 103 may be disposed adjacent to an outer peripheral edge of the core sheet 11. Wherein each male protrusion 102 and each axial through hole 103 are asymmetric in the circumferential direction of the core segment 10. In other words, each of the lobes 102 is asymmetric about a bisector of the central angle to which the lobe 102 corresponds (i.e., the rotor pole face centerline, such as that shown by line a in fig. 3), and each of the axial through holes 103 is asymmetric about a bisector of the central angle to which the corresponding lobe 102 corresponds.
The outer convex portions 102 and the axial through holes 103 on each core segment 10 are respectively overlapped, that is, the outer convex portions 102 on each core segment 10 are overlapped, and the axial through holes 103 on each core segment 10 are overlapped. The outward protrusions 102 and the axial through holes 103 of the plurality of core segments 10 are respectively offset in the circumferential direction of the core segments 10, and the axial through holes 103 of the plurality of core segments 10 are formed with overlapping magnet grooves 110 extending in the axial direction of the core segments 10, as shown in fig. 5.
That is to say, the plurality of outward protruding portions 102 on the same core segment 10 correspond to each other in position in the circumferential direction of the core segment 10, and may be completely overlapped together, and the plurality of axial through holes 103 on the same core segment 10 may also be completely overlapped together in the circumferential direction of the core segment 10. The outer convex portions 102 located on different iron core segments 10 are arranged in a staggered mode in the circumferential direction of the iron core segments 10, the outer convex portions and the inner convex portions differ by a certain angle, and can be partially overlapped together, the axial through holes 103 located on the different iron core segments 10 can also be partially overlapped together to form the magnet grooves 110, the magnet grooves 110 penetrate through the iron core segments 10 along the axial direction of the iron core segments 10, and the permanent magnets 20 can be inserted into the magnet grooves 110 in a one-to-one correspondence mode.
Therefore, the asymmetric structure can enable the skewed-pole rotor core 100 to form a good skewed-pole effect, the skewed-pole rotor core 100 can be provided with the iron core sections 10 arranged in a segmented mode and the permanent magnets 20 arranged in a non-segmented mode, the plurality of iron core sections 10 can share one permanent magnet 20, the permanent magnet 20 is not twisted or segmented in the axial direction and can penetrate through the whole rotor core, the skewed-pole rotor core 100 can achieve the traditional segmented skewed-pole effect, meanwhile, the skewed-pole rotor core can have good and simplified manufacturability, is suitable for being applied to large-scale production, and can be applied to various built-In Permanent Magnet (IPM) rotor structures.
According to the oblique-pole rotor core 100 of the embodiment of the invention, by arranging the segmented core segments 10 and arranging the circumferentially asymmetric outer convex parts 102 and the axial through holes 103 on each core segment 10, the outer convex parts 102 and the axial through holes 103 on the plurality of core segments 10 are partially overlapped in the circumferential direction and the non-segmented permanent magnets 20 are inserted into the axial through holes 103 of the plurality of core segments 10, so that the oblique-pole rotor core 100 not only has good oblique-pole effect but also has good manufacturability.
As described above, the outward protruding portions 102 and the axial through holes 103 of the plurality of core segments 10 are respectively disposed in a staggered manner in the circumferential direction of the core segments 10, and thus, two adjacent core segments 10 may be formed in a twisted structure, that is, one of the core segments is twisted at a certain angle in the axial direction with respect to the other core segment, and in this application, the twisted angle may be set as needed. Optionally, in some embodiments of the present invention, the torsion angle may be β/N, which is a staggered angle of the rotor sheets of two adjacent core segments 10, where β is a rotor slant angle, N is the number of the core segments 10, and values of β and N may be specifically set according to an actual situation. Therefore, the entire skewed pole rotor core 100 can have a relatively excellent skewed pole effect, and the influence of air gap harmonics can be significantly reduced.
According to some embodiments of the invention, at least a portion of the axial through hole 103 may be provided on the male portion 102, that is, the axial through hole 103 may extend onto the male portion 102. This improves the correspondence between the axial through hole 103 and the outward protruding portion 102, and can further improve the pole-tilting effect of the rotor core 100. Fig. 3 shows an embodiment of the core segment 11 of the skewed pole rotor core 100 according to the embodiment of the present invention, in which a portion of the axial through hole 103 is disposed on the outer convex portion 102, the axial through hole 103 is formed in a long bar shape, and both axial ends are disposed adjacent to edges of the outer convex portion 102, respectively. Thus, the axial through hole 103 is relatively large in size, which facilitates the overlapping for mounting the permanent magnet 20, while reducing the amount of material used.
Alternatively, the permanent magnet 20 may be formed in a square shape in axial section. Therefore, the magnetic bearing is not only more convenient to manufacture and assemble, but also has good magnetic performance. Further, the axial section of the permanent magnet 20 may be formed in a long bar shape, for example, a rectangular shape, and alternatively, the length direction of the long bar shape may extend perpendicular to the radial direction of the core segment 10 or in the radial direction of the core segment 10. Thereby, the skewed pole rotor core 100 can have excellent magnetic properties. For example, in the embodiment shown in fig. 1 to 4, the length direction of the elongate strip is substantially perpendicular to the radial direction of the core segment 10.
To ensure better overlapping effect, referring to fig. 3 to 5, in some embodiments of the present invention, the axial through hole 103 may be formed in a long shape and the extending direction of the long shape is not perpendicular to a bisector (e.g., line a shown in fig. 3) of the central angle corresponding to the convex portion 102. Therefore, the axial through holes 103 of the two core segments 10 can have a larger overlapping area when being overlapped, that is, the size of the magnet slot 110 is larger, a more regular shape can be formed, the installation of the permanent magnet 20 is facilitated, and the utilization rate of the axial through holes 103 is larger.
Referring to fig. 1-4, the outer edge of the male portion 102 may extend in an arc shape. Thus, the outer convex portions 102 can be formed as arc-shaped convex portions, the outer shape of the skewed pole rotor core 100 can be further regulated, and the magnetic performance can be further improved. Alternatively, as shown in fig. 3 and 4, when the outward protrusion 102 is formed as an arc-shaped protrusion, one end of the outer edge of the outward protrusion 102 may be formed as a large arc and the other end may be formed as a small arc to achieve a good asymmetric effect.
In some embodiments of the present invention, when there are two core segments 10, the core laminations 11 of the two core segments 10 may be the same, and the core laminations 11 of one core segment 10 may be installed in the axial direction of the skewed pole rotor core 100 by being turned 180 degrees relative to the core laminations 11 of the other core segment 10. Taking the embodiment shown in fig. 1 to 5 as an example, the pole core rotor mainly comprises two core segments 10 and permanent magnets 20, the number of the segments is two, the number of the rotor poles is eight, and the two core segments 10 are respectively formed by assembling an iron core stamped piece 11a and an iron core stamped piece 11 b. The iron core stamped steel 11a and the iron core stamped steel 11b have the same structure, and one of the iron core stamped steel and the iron core stamped steel can be turned over 180 to form another one of the iron core stamped steel and the iron core stamped steel. That is, the core segment 11a and the core segment 11b can be regarded as the same core segment.
During installation, the iron core sheets 11 can be respectively stacked to form two iron core sections 10, then one of the iron core sections 10 is turned 180 degrees relative to the other iron core section 10 along the axial direction of the skewed pole rotor iron core 100, then one of the iron core sections 10 is rotated by a certain angle relative to the other iron core section 10 as required, so that the axial through holes 103 of the two iron core sections 10 are partially overlapped, that is, when the two iron core sections 10 are axially closed, the installation through holes 101 on the two iron core sections 10 are axially aligned but are staggered, and then the permanent magnet 20 is inserted into the two iron core sections 10, wherein the boundary size of the permanent magnet 20 does not exceed the boundaries of the axial through holes 103 reserved in the sections and the iron core sections 10, and the assembly performance is good.
From this, magnetic pole rotor core can adopt same kind of iron core towards piece 11 to make, can adopt same pair of mould punching press to come out, very big saving mould cost and simplification installation technology to magnetic pole rotor core 100 can realize better asymmetric effect, and the oblique utmost point effect is better.
In the present invention, after the permanent magnet 20 is assembled into the core segment 10, subsequent operations such as glue filling, injection molding, or end cap sealing may be performed. After the oblique-pole rotor core 100 is subjected to glue filling operation, the part of the axial through hole 103 not occupied by the permanent magnet 20 can be filled with glue, and after the oblique-pole rotor core 100 is subjected to injection molding operation, the part of the axial through hole 103 not occupied by the permanent magnet 20 can form an injection molding piece, so that a good fixing effect can be achieved on the permanent magnet 20 and the core segment 10.
The skewed pole rotor according to the embodiment of the invention comprises the skewed pole rotor core 100 according to the embodiment of the invention, and the skewed pole rotor core 100 according to the embodiment of the invention has the beneficial technical effects, so that the process is good and the skewed pole effect is good.
The motor provided by the embodiment of the invention comprises the oblique-pole rotor provided by the embodiment of the invention, and the motor provided by the embodiment of the invention has better manufacturability and good oblique-pole effect.
Other constructions and operations of the skewed pole rotor core 100, the skewed pole rotor, and the motor according to embodiments of the invention will be known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "embodiment" or "example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. A skewed pole rotor core, comprising:
the plurality of iron core segments are coaxially and sequentially arranged, each iron core segment comprises a plurality of axially laminated iron core stamped sheets, a through hole is formed in the middle of each iron core stamped sheet, the periphery of each iron core stamped sheet is provided with a plurality of outward convex parts which are distributed along the circumferential direction of the iron core stamped sheet, a plurality of axial through holes which are spaced along the circumferential direction of the iron core stamped sheet, are adjacent to the periphery of the iron core stamped sheet and are in one-to-one correspondence with the plurality of outward convex parts are arranged in each iron core stamped sheet, each outward convex part and each axial through hole are asymmetric in the circumferential direction of the iron core segment, the outward convex parts on each iron core segment are respectively overlapped with the axial through holes, the outward convex parts and the axial through holes on the plurality of iron core segments are staggered in the circumferential direction of the iron core segments respectively, and the axial through holes on the plurality of iron core segments are partially overlapped to form magnet grooves extending along the axial direction of the iron core segments;
the axial through hole is formed into a long strip shape, and the extending direction of the axial through hole is not vertical to the bisector of the central angle corresponding to the convex part;
the permanent magnets are inserted into the magnet grooves in a one-to-one correspondence mode.
2. The skewed rotor core of claim 1 wherein at least a portion of said axial through-hole is disposed on said outward protrusion.
3. The skewed pole rotor core of claim 1 wherein said permanent magnets are formed with a square axial cross-section.
4. The skewed pole rotor core of claim 1 wherein said permanent magnets are formed with an axial cross-section in the shape of a bar having a length that extends perpendicular to or along a radial direction of said core segments.
5. The skewed pole rotor core of claim 1, wherein the outer edges of said outer lobes extend in an arc.
6. The skewed pole rotor core of claim 1, wherein there are two core segments, and the core segments are identical and one is turned 180 degrees relative to the other in the axial direction of the skewed pole rotor core.
7. The skewed pole rotor core of claim 1, wherein the rotor laminations of two adjacent core segments are staggered by an angle β/N, where β is the rotor skewed pole angle and N is the number of core segments.
8. A skewed pole rotor comprising a skewed pole rotor core according to any of claims 1-7.
9. An electrical machine comprising the skewed pole rotor of claim 8.
10. The iron core stamped sheet of the oblique-pole rotor iron core is characterized in that a through hole is formed in the middle of each iron core stamped sheet, a plurality of outward convex parts which are distributed along the circumferential direction of each iron core stamped sheet and protrude outwards are arranged on the outer circumferential edge of each iron core stamped sheet, a plurality of axial through holes which are spaced along the circumferential direction of each iron core stamped sheet, are adjacent to the outer circumferential edge of each iron core stamped sheet and correspond to the plurality of outward convex parts one to one are formed in each iron core stamped sheet, and each outward convex part and the corresponding axial through hole are not symmetrical along the circumferential direction of each iron core stamped sheet;
the axial through hole is formed into a long strip shape, and the extending direction of the axial through hole is not perpendicular to the bisector of the central angle corresponding to the convex part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538258.0A CN107370265B (en) | 2017-07-04 | 2017-07-04 | Oblique-pole rotor iron core and iron core punching sheet thereof, oblique-pole rotor and motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538258.0A CN107370265B (en) | 2017-07-04 | 2017-07-04 | Oblique-pole rotor iron core and iron core punching sheet thereof, oblique-pole rotor and motor |
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| CN107370265A CN107370265A (en) | 2017-11-21 |
| CN107370265B true CN107370265B (en) | 2021-03-23 |
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| CN111130238B (en) * | 2018-10-30 | 2021-11-23 | 广东威灵电机制造有限公司 | Motor rotor and motor |
| CN109861482A (en) * | 2018-12-29 | 2019-06-07 | 中国第一汽车股份有限公司 | A kind of used in new energy vehicles Rotor Assembly |
| WO2023045264A1 (en) * | 2021-09-27 | 2023-03-30 | 佛山市威灵洗涤电机制造有限公司 | Rotor structure, electric motor structure, and electronic device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684337A (en) * | 2012-05-14 | 2012-09-19 | 浙江大学 | Subsection skewed-pole type permanent magnet synchronous motor rotor |
| CN103973008A (en) * | 2013-01-31 | 2014-08-06 | 山洋电气株式会社 | Rotor for permanent magnet type motor, method of manufacturing rotor for permanent magnet type motor, and permanent magnet type motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI224412B (en) * | 2003-07-30 | 2004-11-21 | Ming-Tsung Chu | Rotor structure of line-start permanent magnet synchronous motor |
| JP5239200B2 (en) * | 2007-04-17 | 2013-07-17 | 三菱電機株式会社 | Permanent magnet rotating electric machine |
| JP5433198B2 (en) * | 2008-10-16 | 2014-03-05 | 日立オートモティブシステムズ株式会社 | Rotating electric machines and electric vehicles |
| CN201910684U (en) * | 2011-01-26 | 2011-07-27 | 巢湖顺枫风力发电科技有限公司 | Permanent magnet rotor of small/medium-sized generator |
| CN202634112U (en) * | 2012-05-30 | 2012-12-26 | 中山大洋电机股份有限公司 | Rotor component structure |
| JP6128419B2 (en) * | 2013-01-15 | 2017-05-17 | 日本電産株式会社 | Rotating electric machine |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684337A (en) * | 2012-05-14 | 2012-09-19 | 浙江大学 | Subsection skewed-pole type permanent magnet synchronous motor rotor |
| CN103973008A (en) * | 2013-01-31 | 2014-08-06 | 山洋电气株式会社 | Rotor for permanent magnet type motor, method of manufacturing rotor for permanent magnet type motor, and permanent magnet type motor |
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