CN112821612A - Rotor lamination, rotor assembly and motor - Google Patents
Rotor lamination, rotor assembly and motor Download PDFInfo
- Publication number
- CN112821612A CN112821612A CN201911118752.7A CN201911118752A CN112821612A CN 112821612 A CN112821612 A CN 112821612A CN 201911118752 A CN201911118752 A CN 201911118752A CN 112821612 A CN112821612 A CN 112821612A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- sector
- positioning
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003475 lamination Methods 0.000 title claims abstract description 62
- 238000009434 installation Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The application provides a rotor lamination, rotor subassembly and motor. The rotor lamination includes: a central section having a shaft bore therein; and a plurality of sector segments extending radially from the central segment, respectively; and permanent magnet installation spaces are formed between adjacent sector sections; each sector section is provided with a stopping part at the far end part which is far away from the central section, and the stopping part is used for limiting the permanent magnet arranged in the permanent magnet mounting space to move along the radial direction; each sector section is provided with a deformable positioning part on the side part, and each sector section is correspondingly provided with a yielding hole on the inner side of the positioning part; when the permanent magnet is installed in the permanent magnet installation space, the positioning part is pressed to the yielding hole in the sector section by the permanent magnet to deform, and when the positioning pin is installed in the yielding hole, the positioning part is pressed to the permanent magnet installation space by the positioning pin to deform and tightly press the permanent magnet. According to the technical scheme of this application, through set up location portion and can provide the hole of stepping down in the space that warp for location portion at each fan-shaped section side of rotor lamination, realized the regulation to the interference degree of permanent magnet and rotor lamination in different assembly stages.
Description
Technical Field
The present application relates to the field of electric machines, and more particularly, to improved rotor laminations and rotor assemblies for electric machines.
Background
Electric machines are a widely used type of power source component in the prior art and typically include a rotor and a stator that cooperate to generate a magnetic field. In permanent magnet machines, the rotor or the stator is usually provided with at least one permanent magnet for generating the electromagnetic field. In one type of motor example, for a servo motor energized by a permanent magnet, the permanent magnet is typically mounted within a permanent magnet mounting space. In order to realize the tight assembly of the permanent magnet and the permanent magnet, the permanent magnet installation space and the permanent magnet should have interference fit parts. Such interference fits place high demands on the manufacturing tolerances and the mounting of the components. However, whether the manufacturing tolerance is too large or the assembling process has a deviation, the two may be excessively worn during the assembling process, and thus the reliability or performance of the motor may be insufficient. Although the occurrence of such problems can be alleviated by a high-precision manufacturing and assembling process, the process cost thereof is greatly increased. In addition, the assembly of the permanent magnet in the permanent magnet installation space can also be realized by adopting a glue filling technology. The method fills the gap between the permanent magnet and the permanent magnet installation space by applying glue, thereby effectively avoiding the abrasion problem of the permanent magnet and the permanent magnet due to interference fit. But it is relatively more costly, and it has a longer process time to achieve curing of the glue, and a more complex controlled process to achieve accurate sizing.
Disclosure of Invention
In view of the above, the present application provides a rotor lamination, a rotor assembly and a motor, which effectively solve or alleviate one or more of the above problems and other problems in the prior art.
To solve one of the above technical problems, according to one aspect of the present application, there is provided a rotor lamination according to another aspect of the present application, including: a central section having a shaft bore therein; and a plurality of sector-shaped sections extending radially from the central section, respectively; and permanent magnet installation spaces are formed between adjacent sector sections; each sector section is provided with a stopping part at the far end part which is far away from the central section, and the stopping part is used for limiting the permanent magnet installed in the permanent magnet installation space to move along the radial direction; each sector section is provided with a deformable positioning part on the side part, and each sector section is correspondingly provided with a yielding hole on the inner side of the positioning part; when the permanent magnet is installed in the permanent magnet installation space, the positioning part is pressed to the yielding hole in the sector section by the permanent magnet to deform, and when the positioning pin is installed in the yielding hole, the positioning part is pressed to the permanent magnet installation space by the positioning pin to deform and tightly press the permanent magnet.
According to yet another aspect of the present application, there is also provided a rotor assembly including: a rotor core formed by stacking a plurality of rotor laminations; each rotor lamination is provided with a shaft hole, a permanent magnet mounting space and a yielding hole; a permanent magnet installed in the permanent magnet installation space; a rotating shaft installed in the shaft hole; the positioning pin is arranged in the abdicating hole; wherein at least a portion of a plurality of said rotor laminations are configured as rotor laminations as previously described.
According to yet another aspect of the present application, there is also provided a motor including: a rotor lamination as previously described, or a rotor assembly as previously described.
According to the technical scheme of this application, through set up location portion and can provide the hole of stepping down in the deformation space for location portion at each segmental region lateral part of rotor lamination realized the regulation to the interference degree of permanent magnet and rotor lamination in different assembly stages. For example, the deformation of the positioning part towards the abdicating hole ensures that the permanent magnet cannot be excessively worn due to interference fit or assembly error when being installed in the permanent magnet installation space of the rotor lamination; as another example, the permanent magnets that have been fitted in place are firmly positioned in the permanent magnet mounting spaces of the rotor laminations by the deformation of the positioning portions toward the inside of the permanent magnet mounting spaces.
Drawings
The present application will be more fully understood from the detailed description given below with reference to the accompanying drawings, in which like reference numerals refer to like elements in the figures. Wherein:
FIG. 1 is a schematic view of one embodiment of a rotor assembly of the present application, in which permanent magnets and locating pins have not yet been incorporated;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is a schematic view of an embodiment of a rotor assembly of the present application in which permanent magnets have been incorporated, but in which locating pins have not been incorporated;
FIG. 4 is an enlarged partial schematic view at B of FIG. 3;
FIG. 5 is a schematic view of one embodiment of a rotor assembly of the present application, in which permanent magnets and locating pins have been incorporated;
FIG. 6 is an enlarged partial schematic view at C of FIG. 5;
fig. 7 is one embodiment of a locating pin of the rotor assembly of the present application.
Detailed Description
First, it should be noted that the composition, operation principle, features, advantages, etc. of the rotor lamination, the rotor assembly, and the motor according to the present application will be described below by way of example, but it should be understood that all the descriptions are given for illustration only and thus should not be construed as forming any limitation to the present application. In this document, the technical term "connected" and its derivatives cover that one component is directly connected to another component and/or indirectly connected to another component.
Furthermore, to any single feature described or implicit in an embodiment or shown or implicit in the drawings, the present application still allows any combination or permutation to continue between the features (or their equivalents) without any technical impediment, thereby achieving more other embodiments of the present application that may not be directly mentioned herein.
A schematic representation of three stages of assembly of rotor laminations with permanent magnets, wherein the rotor laminations are in an initial stage, a permanent magnet loading stage and a dowel loading stage, respectively, of an embodiment of a rotor assembly according to the present application is shown in schematic form in fig. 1-6. And the general structure and configuration of the locating pin employed is shown in figure 7. The technical solution of the present application will be described in detail below with reference to the above drawings.
Referring to fig. 1 and 2, which respectively show a rotor assembly and a partial axial view thereof, it thus appears in part that the structure and construction thereof and the single rotor lamination disposed at the axially outermost end thereof are similar. The rotor lamination 100 includes a central section 110 and a plurality of sector sections 120 each extending radially from the central section 110. Wherein, a shaft hole 111 is arranged in the central section 110; so as to mount the rotation shaft 230; and a permanent magnet installation space 130 is formed between the adjacent segment parts 120 so as to install the permanent magnet 220. Furthermore, a stop 121 is provided at each sector 120 at a distal end facing away from the central section 110, which stop can be used to limit the radial movement of the permanent magnets mounted in the permanent magnet mounting spaces 130. In this embodiment, each sector 120 is further provided with a deformable positioning portion 122 in the side portion 120a, 120b, and each sector 120 is correspondingly provided with a relief hole 123 on the inner side of the positioning portion 122, thereby realizing adjustment of the interference degree of the permanent magnet and the rotor lamination at different assembling stages. For example, when the permanent magnet is installed in the permanent magnet installation space 130, the positioning portion 122 is pressed by the permanent magnet to deform toward the yielding hole 123 in the segment 120, so that the permanent magnet 220 does not suffer from excessive wear due to interference fit or assembly error in the process of being installed in the permanent magnet installation space 130; for another example, when the positioning pins 240 are fitted into the relief holes 123, the positioning portions 122 are positioned to be pressed against to be deformed toward the permanent magnet mounting spaces 130, so that the permanent magnets 220 that have been fitted in place are securely positioned in the permanent magnet mounting spaces 130 of the rotor lamination 100.
On the basis of the foregoing embodiments, several modifications may be made to the portions of the rotor lamination or the connection positional relationship thereof to achieve other technical effects, as will be exemplarily described below.
For example, regarding the shapes of the positioning portion 122 and the offset hole 123, the requirement of easy processing and reliable positioning is mainly considered. As one example, the positioning portion 122 may be provided in a trapezoidal structure; and the receding hole 123 may be provided in a rectangular structure.
For example, there are many possibilities regarding the number and the installation position of the positioning portions 122. Meanwhile, it should be noted that the offset holes 123 are used in cooperation with the positioning portions 122 in the present application, and therefore, the number and the arrangement positions thereof should be changed according to the number and the positions of the positioning portions. Although the drawings show that one positioning portion 122 and the corresponding offset hole 123 are disposed on one of the side portions 120a and 120b of each segment 120, as another example, a plurality of positioning portions 122 and a plurality of offset holes 123 may be disposed on the side portions 120a and 120b of each segment 120, so as to achieve multi-point compression assembly of the permanent magnet and provide more reliable fixation. More specifically, the plurality of positioning parts 122 may be respectively provided at both sides 120a, 120b of each segment 120, that is, there is a positioning structure at both sides of any one permanent magnet installation space 130, thereby providing more reliable fixation of the permanent magnet.
For another example, the positioning portion 122 may be disposed on the side portion 120a, 120b of each sector segment 120 far from the central segment 110, and the relief hole 123 is correspondingly disposed on the inner side of the positioning portion 122. Since the segment 120 has a larger width at a position far from the central segment 110, the effect of the offset holes on the structural strength of the segment is relatively small, and thus the structure has higher reliability.
As shown in fig. 1, each positioning portion 122 may be disposed on the side portion 120b of each sector 120 having the same orientation, so as to facilitate the processing of the positioning structure.
With continued reference to fig. 1-6, an embodiment of a rotor assembly 200 is also provided herein. The rotor assembly includes a rotor core 210, a permanent magnet 220, a rotation shaft 230, and a positioning pin 240. The rotor core 210 is formed by stacking a plurality of rotor laminations 100, and each rotor lamination 100 has a shaft hole 111 for mounting a rotating shaft 230, a permanent magnet mounting space 130 for mounting a permanent magnet 220, and a relief hole 123 for mounting a positioning pin 240. It is more critical that at least a portion of the plurality of rotor laminations 100 used to construct the aforementioned rotor core 210 be configured as a rotor lamination 100 in any of the aforementioned embodiments or combinations thereof. With this arrangement, the rotor assembly can not only avoid excessive wear or even damage to the rotor core 210 or the permanent magnet 220 during assembly, but also achieve reliable fixation of the permanent magnet 220 after assembly. In addition, for a partial rotor assembly, when a plurality of rotor laminations 100 are punched and stacked to form the rotor core 210 during the assembly process, although adjacent rotor laminations 100 are already attached to each other by riveting, the bonding therebetween is not tight for adjustment or other processing. At this time, after the aligning pins 240 are inserted into the escape holes 123, the coupling therebetween can be made tighter by pressing the respective rotor laminations 100.
For example, referring to fig. 1 to 2, at this time, the permanent magnets 220 and the positioning pins 240 are not installed in the rotor core 210 of the rotor assembly 200, and the positioning portions 122 and the relief holes 123 are in an initial unpressurized state, and each has an initial profile. Referring again to fig. 3 to 4, at this time, permanent magnets 220 (e.g., magnets) have been installed through the permanent magnet installation spaces 130 of the respective rotor laminations 100 of the rotor core 210 and pressed against the rotor laminations 100 having the positioning portions 122 at least partially therein during the assembly process, so that the positioning portions 122 thereof are deformed toward the side of the relief holes 123. The permanent magnet 220 can be fitted into the permanent magnet installation space 130 with less resistance by the orientation space provided by the relief hole 123 and the deformation capability of the positioning part 122. Referring next to fig. 5-6, at this point, the locating pin 240 has been installed into the relief hole 123. Since the positioning pin 240 and the original undeformed abdicating hole 123 have shapes matching each other, the deformed portion in the abdicating hole 123 is gradually pressed with the insertion of the positioning pin 240, so that the positioning portion 122 returns to its original contour or approaches to its original contour, thereby completing the interference fit with the permanent magnet 220 and realizing the reliable fixation of the permanent magnet in the rotor core 210.
On the basis of the foregoing embodiments, several modifications may be made to the various components of the rotor assembly or their connection positions to achieve other technical effects, as will be exemplarily described below.
For example, the plurality of rotor laminations 100 constituting the rotor core 210 may all adopt the rotor laminations 100 with the positioning portions and the relief holes in any of the embodiments or combinations to provide a sufficient clamping firmness for the permanent magnets installed in the permanent magnet installation spaces 130; such rotor laminations may also be employed only partially, as long as the resultant of the positioning portions is able to securely grip the permanent magnets mounted in the permanent magnet mounting spaces 130. As one example, when only a portion of the rotor laminations 100 having the locating portions and the relief holes is present, the portion of the rotor laminations 100 may be arranged at one end of the rotor core 210 in the axial direction. As another example, the rotor core 210 may further have positioning portions and relief holes arranged at intervals in the axial direction.
Furthermore, although at least some of the rotor laminations 100 in the rotor core 210 may employ the rotor laminations 100 with the locating portions and the relief holes of any of the embodiments or combinations described above. However, the specific arrangement position of the rotor lamination abdicating hole and the positioning part is not required to be further limited. As one example, the relief holes 123 and the positioning portions 122 of each rotor lamination 100 may be staggered in a radial direction of the sector section 120. As another example, the relief holes 123 of each rotor lamination 100 and the positioning portions 122 may also have the same positioning.
Referring again to fig. 7, one form of the locating pin 240 is shown having a generally rectangular main body portion with a tapered, tapered boss at one end of the main body portion, thereby further facilitating insertion of the locating pin 240 into the relief hole 123. It should be understood that the structure of the positioning pin shown here is for illustrative purposes, and any structural or shape modification may be made as long as the change does not affect the achievement of the function of positioning the permanent magnet in the present application. Correspondingly, the abdicating hole for accommodating the same can also be modified in any structure or shape.
Furthermore, although not shown in the drawings, the present application also provides an embodiment of an electric machine, on which any embodiment or combination of the aforementioned rotor laminations 100 or any embodiment or combination of the aforementioned rotor assemblies 200 can be arranged according to application requirements, thereby also having the technical effects brought by the aforementioned technical solutions.
The above detailed description is merely illustrative of the present application and is not intended to be limiting. In the present application, relative terms such as left, right, up, and down are used to describe relative positional relationships, and are not intended to limit absolute positions. Various changes and modifications can be made by one skilled in the art without departing from the scope of the present application, and all equivalent technical solutions also belong to the scope of the present application, and the protection scope of the present application should be defined by the claims.
Claims (10)
1. A rotor lamination (100) comprising:
a central section (110) having a shaft aperture (111) within the central section (110); and
a plurality of sector-shaped sections (120) extending radially from the central section (110), respectively; and permanent magnet mounting spaces (130) are formed between adjacent sector sections (120); each sector (120) is provided with a stopping part (121) at the far end part facing away from the central section (110), and the stopping part (121) is used for limiting the permanent magnet installed in the permanent magnet installation space (130) to move along the radial direction;
wherein each sector section (120) is provided with a deformable positioning part (122) at the side part (120 a, 120 b), and each sector section (120) is correspondingly provided with a relief hole (123) at the inner side of the positioning part (122); when the permanent magnet is installed in the permanent magnet installation space (130), the positioning part (122) is pressed to the yielding hole (123) in the fan-shaped section (120) by the permanent magnet to deform, and when the positioning pin is installed in the yielding hole (123), the positioning part (122) is positioned to be pressed to the yielding hole (130) to deform and compress the permanent magnet.
2. The rotor lamination (100) according to claim 1, wherein a plurality of positioning portions (122) are provided at the side portions (120 a, 120 b) of each of the sector sections (120), and a plurality of relief holes (123) are correspondingly provided at the inner side of the plurality of positioning portions (122) of each of the sector sections (120).
3. Rotor lamination (100) according to claim 2, wherein a plurality of positioning portions (122) are provided at both sides (120 a, 120 b) of each sector (120), respectively.
4. The rotor lamination (100) according to claim 1, wherein the positioning portion (122) is provided on a side (120 a, 120 b) of each sector section (120) remote from the central section (110), and the relief hole (123) is correspondingly provided inside the positioning portion (122).
5. Rotor lamination (100) according to claim 1, wherein each positioning portion (122) is provided on a side (120 a, 120 b) of each sector (120) having the same orientation.
6. A rotor assembly (200), comprising:
a rotor core (210) formed by stacking a plurality of rotor laminations (100); each rotor lamination (100) is provided with a shaft hole (111), a permanent magnet mounting space (130) and a yielding hole (123);
a permanent magnet (220) installed in the permanent magnet installation space (130);
a rotating shaft (230) installed in the shaft hole (111); and
a locating pin (240) mounted within the relief hole (123);
wherein at least a portion of a plurality of said rotor laminations (100) is configured as a rotor lamination (100) according to any one of claims 1 to 5.
7. The rotor assembly (200) of claim 7, wherein at least a portion of the plurality of rotor laminations (100) are each axially disposed at one end of the rotor core (210); or at least a portion of a plurality of said rotor laminations (100) are axially spaced within said rotor core (210).
8. The rotor assembly (200) of claim 7, wherein all of the plurality of rotor laminations (100) are configured as a rotor lamination (100) of any one of claims 1 to 5.
9. The rotor assembly (200) of claim 7, wherein in the rotor lamination (100) of any one of claims 1 to 5, the relief holes (123) and the positioning portions (122) of each rotor lamination (100) are staggered in a radial direction of the sector section (120).
10. An electric machine, comprising: a rotor lamination (100) as claimed in any one of claims 1 to 5, or a rotor assembly (200) as claimed in any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118752.7A CN112821612B (en) | 2019-11-15 | 2019-11-15 | Rotor lamination, rotor assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118752.7A CN112821612B (en) | 2019-11-15 | 2019-11-15 | Rotor lamination, rotor assembly and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112821612A true CN112821612A (en) | 2021-05-18 |
| CN112821612B CN112821612B (en) | 2024-06-04 |
Family
ID=75851627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911118752.7A Active CN112821612B (en) | 2019-11-15 | 2019-11-15 | Rotor lamination, rotor assembly and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112821612B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5846857A (en) * | 1981-09-11 | 1983-03-18 | Fanuc Ltd | Manufacture of rotor for synchronous motor |
| CN104011975A (en) * | 2011-12-23 | 2014-08-27 | 博泽沃尔兹堡汽车零部件有限公司 | Rotor blade set of electric motor |
| CN104254963A (en) * | 2012-05-02 | 2014-12-31 | 罗伯特·博世有限公司 | Positioning a permanent magnet in a rotor or stator |
| CN104393730A (en) * | 2013-08-05 | 2015-03-04 | 通用电气公司 | Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof |
| CN104871402A (en) * | 2013-04-11 | 2015-08-26 | 标立电机有限公司 | Permanent magnet rotor for an electronically commutated dc motor |
| WO2018059877A1 (en) * | 2016-09-27 | 2018-04-05 | BSH Hausgeräte GmbH | Electric drive motor |
| CN110022017A (en) * | 2018-01-10 | 2019-07-16 | 标立电机有限公司 | P-m rotor |
-
2019
- 2019-11-15 CN CN201911118752.7A patent/CN112821612B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5846857A (en) * | 1981-09-11 | 1983-03-18 | Fanuc Ltd | Manufacture of rotor for synchronous motor |
| CN104011975A (en) * | 2011-12-23 | 2014-08-27 | 博泽沃尔兹堡汽车零部件有限公司 | Rotor blade set of electric motor |
| CN104254963A (en) * | 2012-05-02 | 2014-12-31 | 罗伯特·博世有限公司 | Positioning a permanent magnet in a rotor or stator |
| CN104871402A (en) * | 2013-04-11 | 2015-08-26 | 标立电机有限公司 | Permanent magnet rotor for an electronically commutated dc motor |
| US20150357872A1 (en) * | 2013-04-11 | 2015-12-10 | Bühler Motor GmbH | Permanent magnet rotor for an electrinically commutated dc motor |
| CN104393730A (en) * | 2013-08-05 | 2015-03-04 | 通用电气公司 | Spoke permanent magnet machine with reduced torque ripple and method of manufacturing thereof |
| WO2018059877A1 (en) * | 2016-09-27 | 2018-04-05 | BSH Hausgeräte GmbH | Electric drive motor |
| CN109792175A (en) * | 2016-09-27 | 2019-05-21 | Bsh家用电器有限公司 | Electric drive motor |
| CN110022017A (en) * | 2018-01-10 | 2019-07-16 | 标立电机有限公司 | P-m rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112821612B (en) | 2024-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9000650B2 (en) | Laminated core for electromagnetic applications | |
| US8823239B2 (en) | Electrical machine | |
| EP2120313B1 (en) | Electrical motor and method for manufacturing the same | |
| JP4715280B2 (en) | Permanent magnet embedded motor, pump device, and method of manufacturing permanent magnet embedded motor | |
| US20160156234A1 (en) | Electrical machine | |
| CN110022017B (en) | Permanent magnet rotor | |
| JPWO2017141361A1 (en) | Rotating electric machine and method of manufacturing rotating electric machine | |
| CN108702042B (en) | Rotating electrical machine and method for manufacturing rotating electrical machine | |
| CN112821612A (en) | Rotor lamination, rotor assembly and motor | |
| CN110637404B (en) | Armature core of rotating electrical machine | |
| KR102490607B1 (en) | magnet insert type motor rotor | |
| JP6416417B2 (en) | Rotating electric machine stator, rotating electric machine, and method of manufacturing rotating electric machine stator | |
| CN108702043B (en) | Rotating electrical machine and method for manufacturing rotating electrical machine | |
| EP3517811B1 (en) | Solenoid including axially aligned guides | |
| JP2024000994A (en) | Rotor for electric vehicle and electric machine | |
| US20210044186A1 (en) | Dual rotor-type motor for reducing torque ripple and compressor comprising same | |
| US11824405B2 (en) | Rotor of rotary electric machine | |
| CN112602253A (en) | Single tooth segment | |
| CN103155364A (en) | Rotor for an electric motor | |
| CN108292871B (en) | Rotating electrical machine | |
| EP2744082A1 (en) | Rotating electrical machine for vehicle | |
| CN111630752B (en) | Stator of rotating electric machine and method for manufacturing stator of rotating electric machine | |
| US20210036591A1 (en) | Dual rotor-type motor having improved stator structure, and compressor comprising same | |
| JP7146387B2 (en) | rotor unit | |
| CN111146882A (en) | Armature of rotating electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |