CN106961174B - Permanent magnet motor rotor and motor - Google Patents
Permanent magnet motor rotor and motor Download PDFInfo
- Publication number
- CN106961174B CN106961174B CN201710182098.0A CN201710182098A CN106961174B CN 106961174 B CN106961174 B CN 106961174B CN 201710182098 A CN201710182098 A CN 201710182098A CN 106961174 B CN106961174 B CN 106961174B
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- magnetic
- rotor
- air
- magnetic steel
- grooves
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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
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A permanent magnet motor rotor without magnetic leakage and a motor are disclosed, wherein a rotor core is formed by overlapping punching sheets, and each punching sheet is provided with a central hole, a magnetic steel groove and an air magnetic isolation groove; the method is characterized in that: one side of the magnetic steel groove facing the air gap is broken with a fracture, and one side of the magnetic steel groove facing the air magnetic isolation groove is also broken with a fracture communicated with the air magnetic isolation groove, and each air magnetic isolation groove is communicated with two adjacent magnetic steel grooves; the two ends of the rotor core in the axial direction are respectively overlapped with a magnetism isolating fastening plate made of non-magnetic materials, fastening bolts penetrate through the rotor core in the axial direction of the rotor at positions between adjacent magnetic steel grooves, and the specific fastening bolts penetrate through the magnetism isolating fastening plate at one end and the magnetism isolating fastening plate from the rotor core to the other end and are matched and fastened with nuts. The invention greatly reduces the magnetic leakage, can basically achieve no magnetic leakage, greatly improves the utilization rate of the permanent magnet, simultaneously ensures that the strength of the rotor is not reduced, and is suitable for working occasions with high power and high rotating speed.
Description
Technical Field
The invention relates to a motor, in particular to a permanent magnet motor rotor and a motor.
Background
The permanent magnet motor refers to a motor rotor which is excited by a permanent magnet instead of a coil, and the motor has no magnetic winding, so that a large amount of copper and iron materials for manufacturing the coil are saved, the size of the whole motor is smaller, the weight is lighter, electric energy consumed when the coil is excited in working can be saved, and the electromechanical conversion efficiency of the motor is improved.
The rotor of the permanent magnet motor is composed of a rotating shaft, a rotor core, permanent magnets and additional supports, wherein the rotor core is formed by overlapping punching sheets, magnetic steel grooves are symmetrically and uniformly distributed on the punching sheets around the center of the rotating shaft in a rotating mode, the permanent magnets are embedded in the magnetic steel grooves, magnetic leakage can occur at two ends of each permanent magnet, a measure generally taken for limiting the magnetic leakage amount is to narrow a magnetic leakage bridge of each magnetic steel groove towards one side of an air gap as far as possible, air magnetic separation grooves are formed between two poles of each permanent magnet, the magnetic leakage bridges still need to be reserved between the air magnetic separation grooves, the magnetic leakage bridges cannot be too narrow, and the supporting force of the punching sheets on the permanent magnets is too narrow to resist the centrifugal force under high-speed rotation. Therefore, the magnetic flux leakage needs to be reduced, the utilization rate of the permanent magnet needs to be improved, and the rotor core needs to have enough supporting strength for the permanent magnet, which is always the research direction of technicians in the industry.
Disclosure of Invention
The invention aims to provide a permanent magnet motor rotor and a motor, which can reduce magnetic leakage or eliminate magnetic bridge magnetic leakage on the premise of ensuring the support strength of a rotor iron core to a permanent magnet.
In order to achieve the purpose, the technical scheme of the rotor adopted by the invention is as follows: a permanent magnet motor rotor comprises a rotating shaft, a rotor core and permanent magnets, wherein the rotor core is formed by overlapping punching sheets, a central hole connected with the rotating shaft is formed in the center of each punching sheet, a plurality of magnetic steel grooves used for containing the permanent magnets are rotationally and symmetrically arranged on the periphery of each punching sheet around the center of the rotating shaft, and a plurality of air magnetism isolating grooves are formed between the central hole and the magnetic steel grooves on each punching sheet; one side of each magnetic steel groove facing the air magnetic isolation groove is broken to form a fracture which is communicated with the air magnetic isolation groove, the air magnetic isolation grooves correspond to the magnetic steel grooves in a one-to-two mode, namely each air magnetic isolation groove is communicated with two adjacent magnetic steel grooves, and a connecting bridge is reserved between the two adjacent air magnetic isolation grooves; the two ends of the rotor core in the axial direction are respectively superposed with a magnetism isolating fastening plate of a non-magnetic material, fastening bolts penetrate through the rotor core in the axial direction of the rotor at positions between adjacent magnetic steel slots, and the fastening bolts are arranged through the magnetism isolating fastening plate at one end and the rotor core to the magnetism isolating fastening plate at the other end in a penetrating manner and are matched and fastened with nuts; and every air separates the magnetic groove middle part and radially is equipped with the reinforcement connection muscle of non-magnetic material along the towards piece, and the both ends of this reinforcement connection muscle are equipped with the joint convex body, and the cross-sectional width of this joint convex body on the radial cross-section of rotor is greater than the width of reinforcement connection muscle, the joint convex body that corresponds the both ends of reinforcement connection muscle on the towards piece is equipped with the caulking groove that matches with it, makes the one end of reinforcement connection muscle is connected in the position between two magnet steel grooves on the towards piece through joint convex body and caulking groove joint, and the other end also is connected in the position of being connected with the pivot on the towards piece through joint convex body and caulking groove joint.
In the scheme, the fracture is also broken at one side of the magnetic steel groove facing the air gap.
In the above scheme, the cross-sectional shape of the clamping convex body on the radial cross section of the rotor is trapezoidal, rectangular or circular.
In the scheme, the reinforcing connecting ribs are equal-section aluminum profiles arranged along the axial direction of the rotor.
In the above scheme, the number of the fastening bolts is the same as that of the magnetic steel slots, namely, one fastening bolt is respectively arranged between every two adjacent magnetic steel slots on the rotor core.
In the scheme, the adhesive is filled in the fracture of the magnetic steel slot towards the air gap side and the fracture of the magnetic steel slot towards the air magnetic isolation slot side.
In order to achieve the purpose, the technical scheme of the permanent magnet motor adopted by the invention is as follows: a permanent magnet motor comprises a rotor, wherein the rotor comprises a rotating shaft, a rotor core and permanent magnets, the rotor core is formed by overlapping punching sheets, the center of each punching sheet is provided with a central hole connected with the rotating shaft, a plurality of magnetic steel grooves used for containing the permanent magnets are rotationally and symmetrically arranged on the periphery of each punching sheet around the center of the rotating shaft, and a plurality of air magnetism isolating grooves are arranged between the central holes and the magnetic steel grooves on each punching sheet; the method is characterized in that: one side of each magnetic steel groove facing the air magnetic isolation groove is broken to form a fracture which is communicated with the air magnetic isolation groove, the air magnetic isolation grooves correspond to the magnetic steel grooves in a one-to-two mode, namely each air magnetic isolation groove is communicated with two adjacent magnetic steel grooves, and a connecting bridge is reserved between the two adjacent air magnetic isolation grooves; the two ends of the rotor core in the axial direction are respectively superposed with a magnetism isolating fastening plate of a non-magnetic material, fastening bolts penetrate through the rotor core in the axial direction of the rotor at positions between adjacent magnetic steel slots, and the fastening bolts are arranged through the magnetism isolating fastening plate at one end and the rotor core to the magnetism isolating fastening plate at the other end in a penetrating manner and are matched and fastened with nuts; and every air separates the magnetic groove middle part and radially is equipped with the reinforcement connection muscle of non-magnetic material along the towards piece, and the both ends of this reinforcement connection muscle are equipped with the joint convex body, and the cross-sectional width of this joint convex body on the radial cross-section of rotor is greater than the width of reinforcement connection muscle, the joint convex body that corresponds the both ends of reinforcement connection muscle on the towards piece is equipped with the caulking groove that matches with it, makes the one end of reinforcement connection muscle is connected in the position between two magnet steel grooves on the towards piece through joint convex body and caulking groove joint, and the other end also is connected in the position of being connected with the pivot on the towards piece through joint convex body and caulking groove joint.
In the scheme, the fracture is also broken at one side of the magnetic steel groove facing the air gap.
In the above scheme, the number of the fastening bolts is the same as that of the magnetic steel slots, namely, one fastening bolt is respectively arranged between every two adjacent magnetic steel slots on the rotor core.
In the scheme, the adhesive is filled in the fracture of the magnetic steel slot towards the air gap side and the fracture of the magnetic steel slot towards the air magnetic isolation slot side.
The principle and the advantages of the invention are as follows: according to the invention, the two adjacent magnetic steel grooves are communicated with each other by the air magnetism isolating groove at the inner side of the magnetic steel groove, so that a magnetic leakage loop at the inner side of the permanent magnet is broken, the problem of magnetic leakage is thoroughly solved, the magnetic leakage is greatly reduced, or the magnetic bridge magnetic leakage is completely eliminated, and the utilization rate of the permanent magnet is greatly improved. And the magnetism isolating fastening plates of non-magnetic materials are overlapped at the two axial ends of the punching sheets, the magnetism isolating fastening plates at the two ends and all the punching sheets in the middle are pressed and fastened together into a whole through fastening bolts and nuts, and fastening bolts are arranged between every two adjacent magnetic steel grooves, namely, the fastening bolts are fixed on the parts between every two adjacent magnetic steel grooves on the punching sheets, so that the strength of the rotor is ensured, and the high-power high-speed working occasion is suitable.
Drawings
FIG. 1 is a front view of a rotor according to an embodiment of the present invention,
FIG. 2 is a left side schematic view of FIG. 1;
fig. 3 is a schematic sectional view taken along line a-a of fig. 1.
In the above drawings: 1. a rotating shaft; 2. a rotor core; 21. punching; 211. a magnetic steel groove; 2111. breaking off; 2112. breaking off; 212. an air magnetism isolating groove; 213. a connecting bridge; 214. caulking grooves; 3. a permanent magnet; 4. a magnetism isolating fastening plate of non-magnetic material; 5. fastening a bolt; 6. a nut; 7. reinforcing the connecting ribs; 71. the convex body is clamped.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1 to 3:
a permanent magnet motor rotor comprises a rotating shaft 1, a rotor core 2 and permanent magnets 3, wherein the rotor core 2 is formed by stacking punching sheets 21, each punching sheet 21 is provided with a central hole connected with the rotating shaft at the center, a plurality of magnetic steel grooves 211 used for containing the permanent magnets 3 are arranged on the periphery of each punching sheet 21 in a rotation symmetry mode around the center of the rotating shaft 1, and a plurality of air magnetism isolating grooves 212 are arranged between the central hole and the magnetic steel grooves 211 on each punching sheet 21.
Referring to fig. 1 to 3, a fracture 2111 is cut off from one side of the magnetic steel slot 211 facing the air gap, a fracture 2112 is cut off from one side of the air magnetic isolation slot 212 and is communicated with the air magnetic isolation slot 212, the air magnetic isolation slot 212 corresponds to the magnetic steel slot 211 in a one-to-two manner, that is, each air magnetic isolation slot 212 is communicated with two adjacent magnetic steel slots 211, and a connecting bridge 213 is left between the adjacent air magnetic isolation slots 212.
Referring to fig. 1 to 3, magnetic isolation fastening plates 4 made of a non-magnetic material are stacked at both axial ends of the rotor core 2, fastening bolts 5 penetrate through the rotor core 2 at positions between adjacent magnetic steel slots 211 along the axial direction of the rotor, and the fastening bolts 5 are specifically arranged through the magnetic isolation fastening plate 4 at one end, the rotor core 2 and the magnetic isolation fastening plate 4 at the other end and are matched and fastened with nuts 6.
Referring to fig. 1 to 3, a reinforcing connecting rib 7 made of a non-magnetic material is radially arranged in the middle of each air magnetic isolation groove 212 along the stamped steel 21, clamping convex bodies 71 are arranged at two ends of the reinforcing connecting rib 7, the cross-sectional width of each clamping convex body 71 on the radial cross section of the rotor is greater than the width of each reinforcing connecting rib 7, and clamping convex bodies 71 corresponding to two ends of each reinforcing connecting rib 7 on the stamped steel 21 are provided with inserting grooves 214 matched with the clamping convex bodies 71, so that one end of each reinforcing connecting rib 7 is connected to a position between two magnetic steel grooves 211 on the stamped steel 21 through the clamping of the clamping convex bodies 71 and the inserting grooves 214, and the other end of each reinforcing connecting rib is also connected to a position on the stamped steel 21 connected with the rotating shaft 1 through the clamping of the clamping convex bodies 71.
The cross-sectional shape of the snap-fit projection 71 in the radial cross-section of the rotor is trapezoidal, rectangular or circular, as shown for example in the figure as trapezoidal. The reinforced connecting ribs 7 are preferably made of uniform-section aluminum profiles arranged along the axial direction of the rotor, and the cost is low.
Referring to fig. 1 to 3, specifically, the number of the fastening bolts 5 is the same as that of the magnetic steel slots 211, that is, one fastening bolt 5 is respectively disposed between each adjacent magnetic steel slots 211 on the rotor core 2.
And the side fracture 2111 facing the air gap and the fracture 2112 facing the air magnetic isolation groove side of the magnetic steel groove 211 are filled with adhesives to protect the magnetic steel and increase the strength.
Referring to fig. 1, the cross-sectional shapes of the magnetic steel slot 211 and the permanent magnet 3 are shown as trapezoids in fig. 1, and the specific shape is not limited to other shapes such as a rectangle in practice.
According to the invention, the fracture 2111 is arranged on the outer side of the magnetic steel groove 211 facing the air gap to break the magnetic leakage loop on the outer side of the permanent magnet 3, and the air magnetic isolation groove 212 is used for communicating two adjacent magnetic steel grooves 211 on the inner side of the magnetic steel groove 211 to break the magnetic leakage loop on the inner side of the permanent magnet 3, so that the problem of magnetic leakage is thoroughly solved, the magnetic leakage is greatly reduced, the purpose of no magnetic leakage is achieved, and the utilization rate of the permanent magnet is greatly improved. And, the two ends of the axial direction of the punching sheet 21 are overlapped with the magnetism isolating fastening plates 4 of non-magnetic material, the two ends of the magnetism isolating fastening plates 4 and all the punching sheets 21 in the middle are pressed together and fastened into a whole through the fastening bolts 5 and the nuts 6, the fastening bolts 5 are arranged between every two adjacent magnetic steel grooves 211, namely, the fastening bolts 5 are fixed on the part between every two adjacent magnetic steel grooves 211 on the punching sheet 21, the strength of the rotor is ensured, and the magnetic steel rotor is suitable for the working occasions with high power and high rotating speed.
Example two:
a permanent magnet machine rotor differing from the embodiments only in that: the magnetic steel slot 211 is closed towards one side of the air gap, and no fracture 2111 exists without interruption, and the other steps are the same as those in the first embodiment. Compared with the prior art, the design reduces the magnetic leakage to a certain extent.
Example three:
a permanent magnet motor comprises a rotor and a stator, and the specific rotor structure is the same as that of the first embodiment and is not repeated.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. A permanent magnet motor rotor comprises a rotating shaft, a rotor core and permanent magnets, wherein the rotor core is formed by overlapping punching sheets, a central hole connected with the rotating shaft is formed in the center of each punching sheet, a plurality of magnetic steel grooves used for containing the permanent magnets are rotationally and symmetrically arranged on the periphery of each punching sheet around the center of the rotating shaft, and a plurality of air magnetism isolating grooves are formed between the central hole and the magnetic steel grooves on each punching sheet; the method is characterized in that: one side of the magnetic steel groove facing the air magnetic isolation groove is broken to form a fracture which is communicated with the air magnetic isolation groove, and one side of the magnetic steel groove facing the air gap is also broken to form a fracture; the air magnetism isolating grooves correspond to the magnetic steel grooves in a one-to-two mode, namely each air magnetism isolating groove is communicated with two adjacent magnetic steel grooves, and a connecting bridge is reserved between the adjacent air magnetism isolating grooves; the two ends of the rotor core in the axial direction are respectively superposed with a magnetism isolating fastening plate of a non-magnetic material, fastening bolts penetrate through the rotor core in the axial direction of the rotor at positions between adjacent magnetic steel slots, and the fastening bolts are arranged through the magnetism isolating fastening plate at one end and the rotor core to the magnetism isolating fastening plate at the other end in a penetrating manner and are matched and fastened with nuts; and every air separates the magnetic groove middle part and radially is equipped with the reinforcement connection muscle of non-magnetic material along the towards piece, and the both ends of this reinforcement connection muscle are equipped with the joint convex body, and the cross-sectional width of this joint convex body on the radial cross-section of rotor is greater than the width of reinforcement connection muscle, the joint convex body that corresponds the both ends of reinforcement connection muscle on the towards piece is equipped with the caulking groove that matches with it, makes the one end of reinforcement connection muscle is connected in the position between two magnet steel grooves on the towards piece through joint convex body and caulking groove joint, and the other end also is connected in the position of being connected with the pivot on the towards piece through joint convex body and caulking groove joint.
2. The permanent magnet motor rotor of claim 1, wherein: the cross section of the clamping convex body on the radial section of the rotor is trapezoidal, rectangular or circular.
3. The permanent magnet motor rotor of claim 1, wherein: the reinforced connecting ribs are equal-section aluminum profiles arranged along the axial direction of the rotor.
4. The permanent magnet motor rotor of claim 1, wherein: the number of the fastening bolts is the same as that of the magnetic steel grooves, namely, one fastening bolt is respectively arranged between every two adjacent magnetic steel grooves on the rotor core.
5. A permanent magnet motor comprises a rotor, wherein the rotor comprises a rotating shaft, a rotor core and permanent magnets, the rotor core is formed by overlapping punching sheets, the center of each punching sheet is provided with a central hole connected with the rotating shaft, a plurality of magnetic steel grooves used for containing the permanent magnets are rotationally and symmetrically arranged on the periphery of each punching sheet around the center of the rotating shaft, and a plurality of air magnetism isolating grooves are arranged between the central holes and the magnetic steel grooves on each punching sheet; the method is characterized in that: one side of the magnetic steel groove facing the air magnetic isolation groove is broken to form a fracture which is communicated with the air magnetic isolation groove, and one side of the magnetic steel groove facing the air gap is also broken to form a fracture; the air magnetism isolating grooves correspond to the magnetic steel grooves in a one-to-two mode, namely each air magnetism isolating groove is communicated with two adjacent magnetic steel grooves, and a connecting bridge is reserved between the adjacent air magnetism isolating grooves; the two ends of the rotor core in the axial direction are respectively superposed with a magnetism isolating fastening plate of a non-magnetic material, fastening bolts penetrate through the rotor core in the axial direction of the rotor at positions between adjacent magnetic steel slots, and the fastening bolts are arranged through the magnetism isolating fastening plate at one end and the rotor core to the magnetism isolating fastening plate at the other end in a penetrating manner and are matched and fastened with nuts; and every air separates the magnetic groove middle part and radially is equipped with the reinforcement connection muscle of non-magnetic material along the towards piece, and the both ends of this reinforcement connection muscle are equipped with the joint convex body, and the cross-sectional width of this joint convex body on the radial cross-section of rotor is greater than the width of reinforcement connection muscle, the joint convex body that corresponds the both ends of reinforcement connection muscle on the towards piece is equipped with the caulking groove that matches with it, makes the one end of reinforcement connection muscle is connected in the position between two magnet steel grooves on the towards piece through joint convex body and caulking groove joint, and the other end also is connected in the position of being connected with the pivot on the towards piece through joint convex body and caulking groove joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182098.0A CN106961174B (en) | 2017-03-24 | 2017-03-24 | Permanent magnet motor rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182098.0A CN106961174B (en) | 2017-03-24 | 2017-03-24 | Permanent magnet motor rotor and motor |
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| Publication Number | Publication Date |
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| CN106961174A CN106961174A (en) | 2017-07-18 |
| CN106961174B true CN106961174B (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710182098.0A Active CN106961174B (en) | 2017-03-24 | 2017-03-24 | Permanent magnet motor rotor and motor |
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| CN (1) | CN106961174B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492965B (en) * | 2017-09-11 | 2020-06-30 | 广东威灵电机制造有限公司 | Insulating rotor and motor |
| DE102018201591A1 (en) * | 2018-02-01 | 2019-08-01 | Baumüller Nürnberg GmbH | rotor |
| CN110768421A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Rotor of permanent magnet motor, permanent magnet motor and compressor |
| CN110380542B (en) * | 2019-08-06 | 2024-07-16 | 华域汽车电动系统有限公司 | Motor rotor and permanent magnet motor |
| CN112260438A (en) * | 2020-10-13 | 2021-01-22 | 青岛中加特电气股份有限公司 | Motor and rotor thereof |
| CN113258699B (en) * | 2021-06-16 | 2022-03-25 | 常州神力电机股份有限公司 | Sectional type motor rotor iron core for diesel generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694430A (en) * | 2011-03-23 | 2012-09-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Silicon steel sheet for motor rotor, motor rotor body and motor rotor |
| CN203206018U (en) * | 2013-03-18 | 2013-09-18 | 向可为 | New type permanent magnet motor rotor |
| CN203827088U (en) * | 2014-02-24 | 2014-09-10 | 广东威灵电机制造有限公司 | Permanent-magnet motor and rotor thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002010548A (en) * | 2000-06-19 | 2002-01-11 | Sanyo Electric Co Ltd | Rotor |
| CN203206019U (en) * | 2013-04-26 | 2013-09-18 | 重庆东桐科技有限公司 | Rotor structure of embedded tangential magnetic field brushless direct current motor |
| CN205377492U (en) * | 2015-12-31 | 2016-07-06 | 卧龙电气集团股份有限公司 | Direct current permanent -magnet machine rotor core |
-
2017
- 2017-03-24 CN CN201710182098.0A patent/CN106961174B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694430A (en) * | 2011-03-23 | 2012-09-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Silicon steel sheet for motor rotor, motor rotor body and motor rotor |
| CN203206018U (en) * | 2013-03-18 | 2013-09-18 | 向可为 | New type permanent magnet motor rotor |
| CN203827088U (en) * | 2014-02-24 | 2014-09-10 | 广东威灵电机制造有限公司 | Permanent-magnet motor and rotor thereof |
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