CN107394927B - Rotor core and rotor - Google Patents
Rotor core and rotor Download PDFInfo
- Publication number
- CN107394927B CN107394927B CN201710766380.3A CN201710766380A CN107394927B CN 107394927 B CN107394927 B CN 107394927B CN 201710766380 A CN201710766380 A CN 201710766380A CN 107394927 B CN107394927 B CN 107394927B
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- CN
- China
- Prior art keywords
- magnetic steel
- rotor core
- steel groove
- groove
- grooves
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
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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
Abstract
The invention discloses a rotor core and a rotor, wherein a first magnetic steel groove and a second magnetic steel groove are formed in the rotor core, the first magnetic steel groove and the second magnetic steel groove are arranged at intervals along the circumferential direction of the rotor core, the second magnetic steel groove is arranged on the inner side of the first magnetic steel groove, the second magnetic steel groove is opposite to the area between two adjacent first magnetic steel grooves in the radial direction of the rotor core, and the second magnetic steel groove extends along the radial direction of the rotor core. According to the rotor core provided by the embodiment of the invention, the cost can be reduced while the anti-demagnetizing capability is ensured.
Description
Technical Field
The invention relates to the technical field of energy conversion equipment, in particular to a rotor core and a rotor.
Background
The rotor of the rotary refrigeration compressor in the related art is generally made of a rubidium-iron-boron material with strong coercive force, and has strong demagnetization resistance, but higher cost.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, an object of the present invention is to provide a rotor core that can reduce costs while securing anti-demagnetization capability.
According to the rotor core provided by the embodiment of the invention, the rotor core is provided with the first magnetic steel groove and the second magnetic steel groove, the first magnetic steel groove and the second magnetic steel groove respectively comprise a plurality of magnetic steel grooves which are arranged at intervals along the circumferential direction of the rotor core, the second magnetic steel groove is arranged on the inner side of the first magnetic steel groove, the second magnetic steel groove is opposite to the area between the two adjacent first magnetic steel grooves in the radial direction of the rotor core, and the second magnetic steel groove extends along the radial direction of the rotor core.
According to the rotor core provided by the embodiment of the invention, the cost can be reduced while the anti-demagnetizing capability is ensured.
In addition, the rotor core according to the above embodiment of the present invention may further have the following additional technical features:
in one embodiment of the invention, the outer end of the second magnetic steel groove and the first magnetic steel groove are dislocated in the radial direction of the rotor core and generate a step part,
in one embodiment of the present invention, the second magnetic steel groove is rectangular extending in a radial direction of the rotor core.
In one embodiment of the present invention, the first magnetic steel groove is rectangular extending in a radial direction of the rotor core.
In one embodiment of the invention, the second magnetic steel groove is not communicated with the first magnetic steel groove; or the second magnetic steel groove is communicated with the corresponding first magnetic steel groove.
In one embodiment of the present invention, slits are provided on both sides of the first magnetic steel groove in the circumferential direction of the rotor core.
In one embodiment of the present invention, the slits on both sides of the first magnetic steel groove are opened in a direction away from the center of the rotor core.
In one embodiment of the present invention, the outer peripheral surface of the rotor core has a recess toward the first magnetic steel groove, the inner end of the slit is opposite to the recess in the radial direction of the rotor core, and the outer end of the slit is not opposite to the recess in the radial direction of the rotor core.
In one embodiment of the present invention, the outer circumferential surface of the rotor core is recessed toward the first magnetic steel groove.
In one embodiment of the invention, the number of the first magnetic steel grooves and the number of the second magnetic steel grooves are the same.
The invention also proposes a rotor comprising: the rotor core is the rotor core according to the above, and the second magnetic steel grooves are filled with permanent magnetic materials.
In one embodiment of the invention, a rubidium-iron-boron permanent magnet material with stronger coercive force is placed in the first magnetic steel groove, and a ferrite permanent magnet material with lower coercive force is placed in the second magnetic steel groove.
In one embodiment of the present invention, the first magnetic steel groove is magnetized in an tangential parallel manner, and the second magnetic steel groove is magnetized in an tangential parallel manner.
Drawings
Fig. 1, 4, 6, 8 and 10 are schematic views of a rotor core according to various embodiments of the present invention.
Fig. 2, 5, 7, and 9 are schematic views of rotors according to various embodiments of the present invention.
Fig. 3 is a partial schematic view of a rotor core according to an embodiment of the present invention.
Reference numerals: the rotor core 1, the first magnetic steel groove 101, the second magnetic steel groove 102, the step 103, the communication part 104, the slit 105, the recess 106, the first arc segment 1071, the second arc segment 1072, the face group 107, the third arc segment 1073, the first straight line segment 1074, the second straight line segment 1075, the shaft hole 108, and the through hole 109.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 9, the rotor core 1 according to the embodiment of the present invention may be applied to a motor or a generator, wherein the rotor core 1 is provided with a first magnetic steel groove 101 and a second magnetic steel groove 102, each of the first magnetic steel groove 101 and the second magnetic steel groove 102 includes a plurality of first magnetic steel grooves 101 and second magnetic steel grooves 102 arranged at intervals along a circumferential direction of the rotor core 1 (a direction surrounding the rotor core 1), the second magnetic steel groove 102 is provided on an inner side (a side close to a center line of the rotor core 1) of the first magnetic steel groove 101, or the first magnetic steel groove 101 is provided on an outer side (a side far from the center line of the rotor core 1) of the second magnetic steel groove 102, and a region between the second magnetic steel groove 102 and the adjacent two first magnetic steel grooves 101 is opposite in a radial direction of the rotor core 1 (a direction along a radius of the rotor core).
According to the rotor core 1 provided by the embodiment of the invention, the first magnetic steel groove 101 and the second magnetic steel groove 102 can be magnetized, so that the material cost of the rotor can be greatly reduced, and the anti-demagnetizing capability of the rotor cannot be reduced.
In the present invention, the area between two adjacent first magnetic steel grooves 101 includes the area where the two magnetic steel grooves are located.
In addition, the plurality of first magnetic steel grooves 101 may be provided so as to be arranged at regular intervals in the circumferential direction (the direction surrounding the rotor core 1), or may be provided so as to be symmetrically arranged about a plane passing through the axis (the axis of the rotor core 1). Likewise, the plurality of second magnetic steel grooves 102 may be provided at regular intervals in the circumferential direction (direction around the rotor core 1), or may be provided in a form symmetrical about a plane passing through the axis (axis of the rotor core 1).
A shaft hole is provided in the center of the rotor core 1, and a through hole may be provided at a position adjacent to the inner end of the second magnetic steel groove 102.
In addition, the rotor core 1 of the present invention may further have the following embodiments, and these embodiments may be provided separately, or one or more embodiments may be combined without collision.
Example 1
The second magnetic steel groove 102 may not communicate with the first magnetic steel groove 101.
Example 2
As shown in fig. 3, unlike in embodiment 1, the second magnetic steel groove 102 communicates with at least one adjacent first magnetic steel groove 101, that is, the second magnetic steel groove 102 may communicate with both of the adjacent first magnetic steel grooves 101 or with one of the adjacent two magnetic steel grooves. Specifically, the second magnetic steel groove 102 is provided at a position radially opposite to the adjacent two first magnetic steel grooves 101, and therefore, the two first magnetic steel grooves 101 are the first magnetic steel grooves 101 adjacent to the second magnetic steel groove 102.
Further, as shown in fig. 3, the first and second magnetic steel grooves 101 and 102 that are mutually communicated are partitioned by the stepped portion 103 and are communicated by the communicating portion 104, and the stepped portion 103 and the communicating portion 104 between the mutually communicated first and second magnetic steel grooves 101 and 102 are alternately arranged in the axial direction of the rotor core 1. That is, the communication portions of the first magnetic steel groove 101 and the second magnetic steel groove 102 that communicate with each other at intervals in the axial direction, for example, communicate with each other at intervals and are blocked from each other at intervals in the axial direction. The partition and the communication are described herein in terms of a cross section perpendicular to one plane of the axial direction, and it is possible that the first magnetic steel groove 101 and the second magnetic steel groove 102 are communicated in one cross section and a stepped portion 103 is partitioned between the first magnetic steel groove 101 and the second magnetic steel groove 102 in the other cross section in the axial direction. As a whole, the corresponding first and second magnetic steel grooves 101 and 102 are in communication as long as the communication portion 104 is provided.
Advantageously, as shown in fig. 3, the second magnetic steel groove 102 communicates with both of the adjacent two first magnetic steel grooves 101, and the stepped portions 103 and the communicating portions 104 are staggered in a cross section perpendicular to the axis of the rotor core 1.
In addition, on the same cross section perpendicular to the axis, all of the plurality of step portions 103 and the plurality of communication portions 104 may be provided in a symmetrical form (for example, symmetrical about a plane passing through the axis, etc.), or may be provided in a form in which the step portions 103 and the communication portions 104 are staggered in the axial direction.
Moreover, it may be arranged that each adjacent two or more are symmetrical about a plane passing through the axis.
Example 3
Referring to fig. 1 and 2, embodiment 3 includes a second magnetic steel groove 102 of a specific shape, wherein two ends of the second magnetic steel groove 102 are adjacent to two adjacent first magnetic steel grooves 101, respectively.
Further, both ends of the second magnetic steel groove 102 are respectively opposed to a part of the adjacent first magnetic steel groove 101 in the radial direction of the rotor core 1.
Preferably, both ends of the second magnetic steel groove 102 are opposed to and communicate with a portion of the adjacent first magnetic steel groove 101 in the radial direction of the rotor core 1, respectively.
Of course, two ends of the second magnetic steel groove 102 may not be in communication with the adjacent first magnetic steel groove 101, or one end of the second magnetic steel groove 102 may be in communication with one first magnetic steel groove 101, while the other end is not in communication with the other magnetic steel groove.
Example 4
In this embodiment, the second magnetic steel groove 102 has a circular arc shape with its middle portion protruding toward the central axis of the rotor core 1, as shown in fig. 1 and 2.
Example 5
In contrast to embodiment 3, this embodiment has a second magnetic steel groove 102 of another shape, with one end of the second magnetic steel groove 102 being adjacent to one of the first magnetic steel grooves 101 and the other end extending toward the center of the rotor core 1, in which the second magnetic steel groove 102 may extend along a straight line or may extend along a curved line (e.g., a circular arc shape, etc.), as shown in fig. 4 and 5.
The second magnetic steel groove 102 may not be in communication with the first magnetic steel groove 101, or the second magnetic steel groove 102 may also be in communication with the corresponding first magnetic steel groove 101.
Preferably, as shown in fig. 4, the second magnetic steel grooves 102 are circular arc-shaped with a central portion protruding in the circumferential direction of the rotor core 1, and a plurality of the second magnetic steel grooves 102 protrude in the same direction (clockwise or counterclockwise). Of course, it is also possible to provide a shape in which projections exist in different directions.
Further preferably, the end face of the second magnetic steel groove 102 extends in the radial direction of the rotor core 1 and is opposed to one of the first magnetic steel grooves 101.
In addition, the end surface of the second magnetic steel groove 102 may extend from the radial center line of one of the first magnetic steel grooves 101.
Example 6
With reference to fig. 6 to 9, a second magnetic steel groove 102 of still another shape is described, the second magnetic steel groove 102 extending in the radial direction of the rotor core 1.
The outer ends of the second magnetic steel grooves 102 are offset from the first magnetic steel grooves 101 in the radial direction of the rotor core 1, and a step 103 is generated by the offset, or, the second magnetic steel grooves 102 corresponding to each other are not completely aligned with the first magnetic steel grooves 101 in the radial direction, but it is also possible that one part of the first magnetic steel grooves 101 and the second magnetic steel grooves 102 which are opposite are aligned with each other and the other part is offset.
Preferably, the second magnetic steel groove 102 is rectangular extending along the radial direction of the rotor core 1, and of course, the second magnetic steel groove 102 may be strip-shaped or have other shapes.
Advantageously, the first magnetic steel groove 101 is rectangular extending in the radial direction of the rotor core 1.
In addition, the second magnetic steel groove 102 may not communicate with the first magnetic steel groove 101; or the second magnetic steel groove 102 may also be in communication with the corresponding first magnetic steel groove 101.
Example 7
The first magnetic steel groove 101 has a rectangular shape extending in the radial direction of the rotor core 1.
The shapes of the first magnetic steel groove 101 and the second magnetic steel groove 102 are described above, but the scope of the present invention is not limited thereto.
Example 8
Referring to fig. 6 to 9, embodiment 8 may be applied to any of the other embodiments in the present application, specifically, the first magnetic steel groove 101 is provided with slits 105 on both sides in the circumferential direction of the rotor core 1.
Further, the slits 105 on both sides of the first magnetic steel groove 101 open in a direction away from the center of the rotor core 1.
Preferably, the outer peripheral surface of the rotor core 1 has a recess 106 toward the first magnetic steel groove 101, the inner end of the slit 105 is opposed to the recess 106 in the radial direction of the rotor core 1, and the outer end of the slit 105 is not opposed to the recess 106 in the radial direction of the rotor core 1, that is, the outer end of the slit 105 extends to the outside of the recess 106 (a position not corresponding to the recess 106 in the radial direction).
Example 9
Embodiment 9 can be applied to other embodiments as well.
In the present invention, referring to fig. 1, 4, 6, and 8, the outer peripheral surface of the rotor core 1 is recessed 106 toward the first magnetic steel groove 101.
Further, the outer peripheral surface of the rotor core 1 includes a plurality of face groups 107 that are sequentially connected in the circumferential direction of the rotor core 1, the face groups 107 including: the first arc segment 1071, the second arc segment 1072, the third arc segment 1073, the first straight line segment 1074 and the second straight line segment 1075, wherein the second arc segment 1072 is connected with one end of the first arc segment 1071; the third arc segment 1073 is connected with the other end of the first arc segment 1071; the first straight line segment 1074 is connected with the second circular arc segment 1072; the second straight segment 1075 is connected to the third circular segment 1073, wherein the first straight segment 1074 and the second straight segment 1075 of the two adjacent sets of facets 107 are connected and form the recess 106.
Further, the first arc segment 1071 is concentric with the rotor core 1, the second arc segment 1072 is non-concentric and tangential to the first arc segment 1071, and the third arc segment 1073 is non-concentric and tangential to the first arc segment 1071.
In addition, the first straight line segment 1074 and the second straight line segment 1075 are both located outside the first magnetic steel groove 101, and the first straight line segment 1074 and the second straight line segment 1075 are both opposite to one first magnetic steel groove 101.
Example 10
Embodiment 10 is equally applicable to any of the foregoing embodiments.
In the present invention, the number of the first magnetic steel grooves 101 and the number of the second magnetic steel grooves 102 are the same.
Example 11
As shown in fig. 10, the rotor core 1 is provided in a plurality of stages stacked in the axial direction. Each section of the rotor core 1 is provided with a first magnetic steel groove 101 and a second magnetic steel groove 102.
Further, the second magnetic steel grooves 102 in the adjacent two sections in the rotor core 1 are axially opposed and the first magnetic steel grooves 101 are axially offset.
Further, the two adjacent laminated rotor cores are different in a pair of pole angles in the circumferential direction.
Wherein the second magnetic steel groove 102 and the first magnetic steel groove 101 may not be communicated; or the second magnetic steel groove 102 communicates with the corresponding first magnetic steel groove 101.
Further, the first magnetic steel groove 101 is rectangular extending in the radial direction of the rotor core 1, and the second magnetic steel groove 102 is circular arc with the middle protruding toward the center of the rotor core 1, circular arc with the middle protruding in the circumferential direction of the rotor core 1, or rectangular extending in the radial direction of the rotor core 1.
Adjacent first and second magnetic steel grooves 101, 102 in each section of the rotor core 1 are symmetrical about a plane passing through the core section axis. Of course, the first magnetic steel groove 101 and the second magnetic steel groove 102 may be provided in a circumferentially spaced, circumferentially uniformly spaced arrangement.
In addition, in conjunction with fig. 2, 5, 7 and 9, the invention also provides a rotor, which comprises: the rotor core 1, the rotor core 1 is the rotor core 1, and the second magnetic steel grooves 102 are filled with permanent magnetic materials.
According to the rotor core 1 provided by the embodiment of the invention, the first magnetic steel groove 101 and the second magnetic steel groove 102 can be magnetized, so that the material cost of the rotor can be greatly reduced, and the anti-demagnetizing capability of the rotor cannot be reduced.
In one embodiment of the present invention, a higher coercivity rubidium-iron-boron permanent magnet material is placed in the first magnetic steel tank 101, and a lower coercivity ferrite permanent magnet material is placed in the second magnetic steel tank 102. The anti-demagnetizing capability can be further improved.
Preferably, the first magnetic steel groove 101 is magnetized in a tangential parallel manner, and the second magnetic steel groove 102 is magnetized in a radial direction, or may be magnetized in a tangential parallel manner.
Specifically, when the second magnetic steel groove 102 is rectangular or long-strip-shaped, radial magnetization may be employed, and when the second magnetic steel groove 102 is circular arc-shaped, tangential parallel magnetization may be employed. Thereby greatly reducing the material cost of the rotor and not reducing the anti-demagnetizing capability of the rotor.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (11)
1. The rotor core is characterized in that a first magnetic steel groove and a second magnetic steel groove are formed in the rotor core, the first magnetic steel groove and the second magnetic steel groove comprise a plurality of magnetic steel grooves which are arranged at intervals along the circumferential direction of the rotor core, the second magnetic steel groove is formed in the inner side of the first magnetic steel groove, in the radial direction of the rotor core, the second magnetic steel groove is opposite to the area between two adjacent first magnetic steel grooves, and the second magnetic steel groove extends along the radial direction of the rotor core;
the outer end of the second magnetic steel groove and the first magnetic steel groove are staggered in the radial direction of the rotor core, and a step part is generated by the staggered arrangement;
the first magnetic steel grooves and the second magnetic steel grooves which are communicated with each other are separated by the step parts and are communicated by the communicating parts, and the step parts and the communicating parts between the first magnetic steel grooves and the second magnetic steel grooves which are communicated with each other are staggered in the axial direction of the rotor core.
2. The rotor core according to claim 1, wherein the second magnetic steel groove is rectangular extending in a radial direction of the rotor core.
3. The rotor core according to claim 1, wherein the first magnetic steel groove is rectangular extending in a radial direction of the rotor core.
4. A rotor core according to any one of claims 1-3, characterized in that both sides of the first magnetic steel groove in the circumferential direction of the rotor core are provided with slits.
5. The rotor core as recited in claim 4, wherein the slits on both sides of the first magnetic steel groove open in a direction away from a center of the rotor core.
6. The rotor core according to claim 5, wherein an outer peripheral surface of the rotor core has a recess toward the first magnetic steel groove, an inner end of the slit is opposite to the recess in a radial direction of the rotor core, and an outer end of the slit is not opposite to the recess in the radial direction of the rotor core.
7. A rotor core according to any one of claims 1-3, characterized in that the outer circumferential surface of the rotor core is recessed toward the first magnetic steel groove.
8. A rotor core according to any one of claims 1-3, characterized in that the number of the first and second magnetic steel slots is the same.
9. A rotor, comprising:
a rotor core, wherein the rotor core is according to any one of claims 1-8, and the second magnetic steel grooves are filled with permanent magnetic materials.
10. The rotor of claim 9, wherein a higher coercivity rubidium-iron-boron permanent magnet material is placed in the first magnetic steel tank and a lower coercivity ferrite permanent magnet material is placed in the second magnetic steel tank.
11. The rotor of claim 9, wherein the first magnetic steel grooves are magnetized in parallel and the second magnetic steel grooves are magnetized in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766380.3A CN107394927B (en) | 2017-08-30 | 2017-08-30 | Rotor core and rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766380.3A CN107394927B (en) | 2017-08-30 | 2017-08-30 | Rotor core and rotor |
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| Publication Number | Publication Date |
|---|---|
| CN107394927A CN107394927A (en) | 2017-11-24 |
| CN107394927B true CN107394927B (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710766380.3A Active CN107394927B (en) | 2017-08-30 | 2017-08-30 | Rotor core and rotor |
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| Country | Link |
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| CN (1) | CN107394927B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102625653B1 (en) * | 2021-10-14 | 2024-01-17 | 엘지전자 주식회사 | Flux concentrate type rotor and motor having the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015133839A (en) * | 2014-01-14 | 2015-07-23 | 株式会社ジェイテクト | Magnet-embedded rotor |
| CN106160281A (en) * | 2016-08-26 | 2016-11-23 | 广东威灵电机制造有限公司 | Magneto and air-conditioner |
| CN106469953A (en) * | 2015-08-18 | 2017-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor and its rotor |
| CN207124501U (en) * | 2017-08-30 | 2018-03-20 | 广东威灵电机制造有限公司 | Rotor core and rotor |
-
2017
- 2017-08-30 CN CN201710766380.3A patent/CN107394927B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015133839A (en) * | 2014-01-14 | 2015-07-23 | 株式会社ジェイテクト | Magnet-embedded rotor |
| CN106469953A (en) * | 2015-08-18 | 2017-03-01 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of motor and its rotor |
| CN106160281A (en) * | 2016-08-26 | 2016-11-23 | 广东威灵电机制造有限公司 | Magneto and air-conditioner |
| CN207124501U (en) * | 2017-08-30 | 2018-03-20 | 广东威灵电机制造有限公司 | Rotor core and rotor |
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| Publication number | Publication date |
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| CN107394927A (en) | 2017-11-24 |
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