CN115395753A - Single-layer permanent magnet axial flux generator permanent magnet rotor disc and power generation method - Google Patents

Single-layer permanent magnet axial flux generator permanent magnet rotor disc and power generation method Download PDF

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Publication number
CN115395753A
CN115395753A CN202211314969.7A CN202211314969A CN115395753A CN 115395753 A CN115395753 A CN 115395753A CN 202211314969 A CN202211314969 A CN 202211314969A CN 115395753 A CN115395753 A CN 115395753A
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China
Prior art keywords
permanent magnet
axial flux
flux generator
outer ring
carbon fiber
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CN202211314969.7A
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CN115395753B (en
Inventor
倪明玖
胡跃滨
阳倦成
吕泽
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Xian Jiaotong University
University of Chinese Academy of Sciences
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Xian Jiaotong University
University of Chinese Academy of Sciences
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • 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
    • H02K1/2793—Rotors axially facing stators
    • H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

The invention relates to a single-layer permanent magnet axial flux generator permanent magnet rotor disc and a power generation method, relates to the field of axial flux permanent magnet motors, and is used for solving the problem that a generator rotor in the prior art cannot bear huge inertia force caused by ultrahigh rotating speed, and the single-layer permanent magnet axial flux generator permanent magnet rotor disc comprises: the carbon fiber structure comprises a carbon fiber structure frame, a clamping structure and a permanent magnet, wherein the carbon fiber structure frame comprises an outer ring and inner side spokes, carbon fibers are laid in the outer ring along the tangential direction of the outer ring, the inner side spokes are laid in U-shaped shapes and the like, and the outer ring is attached to the inner side spokes; the clamping structure is connected with the inner side spokes to form mounting holes, and the carbon fiber structure frame is connected with the clamping structure through a high polymer bonding material; and part or all of the permanent magnet is arranged in the mounting hole, and the permanent magnet is connected with the carbon fiber structure frame through a polymer bonding material.

Description

Single-layer permanent magnet axial flux generator permanent magnet rotor disc and power generation method
Technical Field
The invention relates to the field of axial flux permanent magnet motors, in particular to a permanent magnet rotor disc of a single-layer permanent magnet axial flux generator and a power generation method.
Background
The axial flux permanent magnet motor is also called a disc motor, has the remarkable advantages of compact structure, high torque density, high efficiency and the like, and has good application prospect in the occasions of electric vehicles, wind power generation, aircraft propulsion systems and the like.
However, the outer diameter of the rotor of the axial magnetic field motor is generally the same as that of the stator, so that the outer diameter of the rotor is larger, and the rotational inertia is large. At present, an axial magnetic field permanent magnet motor is developing towards high speed and high power density, so that higher requirements are put forward on the structural strength of a disc rotor with large inertia. For high power axial magnetic fields, especially at high speed, rotor strength and protection of permanent magnets become important technical difficulties. In addition, most of the existing axial magnetic field motor rotors are complex in structure and high in cost.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a permanent magnet rotor disk of a single-layer permanent magnet axial flux generator and a power generation method, which are used for solving the problems.
In order to achieve the aim, the invention provides a permanent magnet rotor disk of a single-layer permanent magnet axial flux generator and a power generation method.
In a first aspect, the invention provides a single layer permanent magnet axial flux generator permanent magnet rotor disk. The single layer permanent magnet axial flux generator permanent magnet rotor disk comprises: the carbon fiber structure comprises a carbon fiber structure frame, a clamping structure and a permanent magnet, wherein the carbon fiber structure frame comprises an outer ring and inner side spokes, carbon fibers are laid in the outer ring along the tangential direction of the outer ring, the inner side spokes are laid in U-shaped shapes and the like, and the outer ring is attached to the inner side spokes; the clamping structure is connected with the inner side spokes to form mounting holes, and the carbon fiber structure frame is connected with the clamping structure through a high polymer bonding material; and part or all of the permanent magnet is arranged in the mounting hole, and the permanent magnet is connected with the carbon fiber structure frame through a polymer bonding material.
Optionally, at least one cross section of the outer ring is in the shape of a circular ring, and carbon fibers are laid in the outer ring along a tangential direction of the outer ring. Its advantage is high structural strength.
Optionally, at least one cross section of the inside spoke has a first shape, and the carbon fiber is laid in the inside spoke in the same direction as the first shape. Its advantages are simple structure, easy implementation and high strength.
Optionally, the first shape includes, but is not limited to, one or more of a U-shape, a V-shape, and a fan shape. The advantage is that different power generation requirements can be met.
Optionally, the inner spoke is provided with an opening, and the opening is located on one side of the inner spoke, which is far away from the outer ring. This has the advantage of providing sufficient space for mounting the permanent magnets.
Optionally, the width of the inner spoke in a direction away from the outer ring tapers. Its advantage lies in that it is convenient to be connected with the clamping structure.
Optionally, the clamping structure includes a main body and clamping members, the main body has at least one cross section in the shape of a circular ring, the main body includes a first surface and a second surface, the area of the second surface is larger than that of the first surface, the first surface and the second surface are coaxially disposed, and the clamping members are uniformly distributed on the second surface in a circumferential direction. Its advantage lies in having improved the centre gripping area, and then has promoted overall structure's intensity.
Optionally, the permanent magnet is partially or completely filled in the mounting hole. The bearing structure has the advantages that the problem that the bearing structure occupies an air gap is solved, and the upper limit of the rotating speed which can be borne by the rotor is improved.
In a second aspect, the invention also provides a method of generating electricity. The axial flux generator comprises a stator, a structural main shaft and any one of the single-layer permanent magnet axial flux generator permanent magnet rotor discs, so that the generating efficiency of the generator is improved.
Optionally, the structural main shaft drives the single-layer permanent magnet axial flux generator permanent magnet rotor disc to rotate, and a stator winding in the stator cuts a magnetic field to generate current.
Drawings
FIG. 1 is a schematic assembled view of a single layer permanent magnet axial flux generator permanent magnet rotor disk of the present invention;
FIG. 2 is a schematic illustration of a single layer permanent magnet axial flux generator permanent magnet rotor disk assembly of the present invention, shown disassembled;
FIG. 3 is a schematic diagram of permanent magnets used in a permanent magnet rotor disk of a single layer permanent magnet axial flux generator according to the present invention;
FIG. 4 is a flow chart of a method of generating power according to the present invention.
In the figure: 1-clamping part, 2-permanent magnet, 3-outer ring, 4-main body, 5-inner side spoke.
Detailed Description
Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described herein are only for illustration and are not intended to limit the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known circuits, software, or methods have not been described in detail in order to avoid obscuring the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "in one embodiment," "in an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale.
Referring to fig. 1-3, the illustrated embodiment of the present invention provides a single layer permanent magnet axial flux generator permanent magnet rotor disk comprising a carbon fiber structural frame, a clamping structure, and permanent magnets.
Referring to fig. 2, the carbon fiber structural frame includes an outer ring 3 and an inner side spoke 5, the inner side spoke 5 is attached to the outer ring 3, the carbon fiber structural frame uses high-strength carbon fiber to bear a large inertia force caused by an ultrahigh rotation speed, and simultaneously, elastic deformation generated in the ultrahigh-speed rotation of the rotor is reduced, so that the permanent magnet 2 only bears compressive stress.
The carbon fiber is a novel fiber material of high-strength and high-modulus fiber with the carbon content of more than 95%, the carbon fiber is light in weight, but high in strength, has the characteristics of corrosion resistance and high modulus, and can reduce the structural weight, reduce the inertia force of the rotor during high-speed rotation and improve the upper limit of the rotor rotation speed while improving the structural strength; the carbon fiber used in the embodiment is an M60 high modulus carbon fiber, and in other alternative embodiments, other types of carbon fibers can be selected according to actual situations.
Referring to fig. 2, the clamping structure is arranged coaxially with the carbon fiber structural frame, the clamping structure is used for being connected with the inner spokes 5 to form mounting holes, the mounting holes are used for mounting the permanent magnets 2, and the clamping structure comprises a main body 4 and a clamping part 1. Specifically, the clamping structure is made of 7068 aluminum alloy, has light weight and high tensile strength, can bear the centrifugal force of the rotor at high rotating speed, and can be made of other materials in other optional embodiments.
The permanent magnets 2 are all installed in the installation holes, the permanent magnets 2 are used for generating a fixed magnetic field, and the axial magnetic flux layout is adopted to avoid the problem that the force bearing structure occupies an air gap in the traditional layout. Specifically, the permanent magnet 2 used in the present embodiment is 12N 56 magnets, and in other alternative embodiments, other numbers and types of permanent magnets may be selected according to actual situations, but it should be noted that the compressive stress applied by the permanent magnets to the carbon fiber structural frame preferably does not exceed 100Mpa, so as to maintain the stability of the overall structure of the rotor.
In an alternative embodiment, the data for "thickness", "radius", "width", and "axial length", etc. are given as non-limiting data.
In this embodiment, at least one cross section of the outer ring 3 is in the shape of a circular ring, and the carbon fibers are laid along the tangential direction of the outer ring 3.
Specifically, the thickness of the carbon fiber of the outer ring 3 is 18mm.
The carbon fiber outer ring has the advantages that the outer ring formed by laying the carbon fibers along the tangential direction has higher structural strength, so that the outer ring can bear larger centrifugal force.
In this embodiment, at least one section of the inside spoke 5 has a first shape, the carbon fiber is laid in the inside spoke 5 in the same direction as the first shape, and the inside spoke is uniformly distributed on one surface of the outer ring 3 close to the center of the circle in the circumferential direction.
Specifically, the thickness of the carbon fiber of the inside spoke 5 is 2mm.
The permanent magnet protection device has the advantages of simple structure, easy realization, high strength, good constraint effect on the permanent magnet, and capability of effectively protecting the permanent magnet by only bearing compressive stress when the permanent magnet rotates at high speed.
In this embodiment, the first shape is a semicircular arc shape, which is similar to the shape of a sector of a paper fan, one end of the first shape close to the outer ring 3 is wider, and one end of the first shape far from the outer ring 3 is narrower; wherein, in other alternative embodiments, the first shape can also be selected from but not limited to one or more of a U-shape, a V-shape and a fan shape. The magnetic field generator has the advantages that different shapes and combinations can be selected to form different magnetic fields so as to meet different power generation requirements, and aesthetic requirements of people can be met to a certain extent.
In this embodiment, the inside spoke 5 is provided with an opening, the opening is located the inside spoke 5 is kept away from one side of the outer ring 3, the inside spoke 5 is close to the one end of the outer ring 3 reaches the distance at the center of the opening is the opening depth of the inside spoke 5, the opening depth is less than the minimum radius of the outer ring 3.
Specifically, the minimum radius of the outer ring 3 is 130mm, and the maximum radius is 150mm.
The permanent magnet clamping device has the advantages that enough installation space can be provided for the clamping structure and the permanent magnet, and the reasonability and the strength of the whole structure are improved.
In this embodiment, the width of the inside spokes 5 in the direction away from the outer ring 3 is gradually narrowed. Its advantage lies in that it is convenient to be connected with the clamping structure.
In this embodiment, the clamping structure includes the main body 4 and the clamping member 1, the clamping structure is made of an aluminum alloy, and in other embodiments, clamping structures made of other materials can be selected according to actual conditions; the main body 4 is provided with at least one section in the shape of a circular ring, the maximum radius of the circular ring is 70mm, the minimum radius of the circular ring is 5mm, the main body comprises a first surface and a second surface, the area of the second surface is larger than that of the first surface, the first surface and the second surface are coaxially arranged, the clamping parts 1 are uniformly distributed on the second surface in the circumferential direction, and the length of the clamping parts 1 is 20mm.
In an alternative embodiment, the first surface of the body 4 encloses a circular hole for insertion into and connection with a structural main shaft of the axial flux generator. The clamping part 1 is a clip type structure consisting of two flat strips with equal length, the width between the two flat strips with equal length is the same as the thickness of the inner spoke, namely 2mm, and the clamping structure is connected with the carbon fiber structure frame through a high polymer bonding material.
Specifically, the radius of the circular hole is 5mm, the polymer adhesive material is loctite 402 instant adhesive, and other types of polymer adhesive materials can be selected in other optional embodiments.
The clamping structure has the advantages that the clamping part with a special structure is used for increasing the contact area of the clamping structure and the carbon fiber structure frame, the clamping structure is guaranteed to have enough clamping strength to the carbon fiber frame, the problem that the strength of the overall structure of the permanent magnet rotor disc of the single-layer permanent magnet axial flux generator is weakened due to the fact that the shearing strength of the high-polymer bonding material is extremely low relative to the strength of carbon fibers is solved, the structural quality of the permanent magnet rotor disc is reduced, and the overall structure strength of the permanent magnet rotor disc of the single-layer permanent magnet axial flux generator is greatly improved.
In this embodiment, the shape of permanent magnet 2 with first shape is similar, 2 parts of permanent magnet or whole are filled in the mounting hole, 2 one sides of keeping away from the clamping structure of permanent magnet with 2 distances of being close to the clamping structure's one side of permanent magnet do 2 axial length of permanent magnet, 2 axial length of permanent magnet is less than the opening degree of depth, permanent magnet 2 with use polymer bonding material to connect between the carbon fiber structure frame.
Specifically, the axial length of the permanent magnet 2 is 40mm, the polymer adhesive material is loctite 402 instant adhesive, and other types of polymer adhesive materials can be used in other alternative embodiments.
The magnetic field structure reasonably designed cancels a rotor core in the traditional rotor, fully utilizes the magnetic flux of the permanent magnet, reduces the structural quality and improves the structural strength; replace traditional bolted connection structure through polymer bonding material for connect more firmly between the structure, can bear higher stress, further alleviateed the structure quality simultaneously, the centrifugal force that produces when having reduced the high-speed rotation of rotor, and then promoted the rotational speed upper limit that the rotor can bear.
In conclusion, the invention has the advantages of simple structure, low cost, high generated magnetic field intensity, capability of bearing extremely high rotating speed and great improvement on the working efficiency of the rotor.
Referring to fig. 4, the illustrated embodiment of the invention also provides a method of generating electricity for improving the efficiency of electricity generation using a single layer permanent magnet axial flux generator permanent magnet rotor disk.
S1: providing an axial flux generator comprising a stator, a structural main shaft and the single-layer permanent magnet axial flux generator permanent magnet rotor disc, wherein the single-layer permanent magnet axial flux generator permanent magnet rotor disc comprises;
s2: the carbon fiber structure frame is utilized to restrain the permanent magnet 2, and meanwhile, the elastic deformation of the rotor in the super-high-speed rotation process is reduced, so that the permanent magnet 2 only bears the compressive stress.
Specifically, the carbon fiber structure frame includes outer lane 3 and inboard spoke 5, inboard spoke 5 with the laminating of outer lane 3, the thickness of outer lane carbon fiber is 18mm, the thickness of the carbon fiber of inboard spoke is 2mm.
Further, the carbon fiber used in the present embodiment is an M60 high modulus carbon fiber, and in other alternative embodiments, other types of carbon fibers may be selected.
S3: the clamping structure is utilized to increase the contact area with the carbon fiber structure frame, and the overall structure strength is improved.
Specifically, the clamping structure with the carbon fiber structure frame sets up coaxially, the clamping structure with the carbon fiber structure frame passes through polymer connecting material and connects, the clamping structure with inboard spoke 5 is connected and is formed the mounting hole, the mounting hole is used for installing permanent magnet 2, the clamping structure includes main part 4 and clamping part 1, main part 4 has at least one cross-sectional shape for the ring, the maximum radius of ring is 70mm, and the minimum radius is 5mm, clamping part 1's length is 20mm.
Further, the material of the clamping structure is 7068 aluminum alloy, the polymer adhesive material is loctite 402 instant adhesive, and in other alternative embodiments, other materials and structures of the clamping structure and other types of polymer adhesive materials can be selected.
S4: the permanent magnet 2 is utilized to generate a fixed magnetic field, the permanent magnets 2 are all installed in the installation holes, and the permanent magnets 2 are connected with the carbon fiber structure frame through a high polymer bonding material, so that the problem that a bearing structure occupies an air gap in the traditional layout is solved.
Specifically, the polymer bonding material is a loctite 402 instant adhesive but not limited to the loctite 402 instant adhesive, the permanent magnet 2 is 12N 56 magnets, the axial length of the permanent magnet 2 is 40mm, but it is noted that the compressive stress applied by the magnets to the carbon fiber structural frame preferably does not exceed 100Mpa so as to maintain the stability of the whole structure; in other alternative embodiments, the number and type of permanent magnets is not limited.
In this embodiment, the structural main shaft drives the single-layer permanent magnet axial flux generator permanent magnet rotor disc to rotate, and the stator winding in the stator cuts a magnetic field to generate current.
Specifically, the structural main shaft is inserted into the circular hole, the structural main shaft is made of aluminum alloy, the stator can be made of various types of stators, the specific structure and design of the stator can refer to the prior art, and details are not repeated here for brevity of the lines.
The structure main shaft has the advantages that the structure main shaft can be better connected with a carbon fiber bearing main structure while maintaining the strength of the structure main shaft, and the structure strength is further improved; the rotor has simple structure, high rotation speed and high magnetic field intensity, reduces the cost and greatly improves the generating efficiency of the generator.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (10)

1. A single layer permanent magnet axial flux generator permanent magnet rotor disk, comprising:
the carbon fiber structure frame comprises an outer ring and an inner side spoke, and the inner side spoke is attached to the outer ring;
the clamping structure is coaxially arranged with the carbon fiber structure frame, and the clamping structure is connected with the inner side spokes to form mounting holes;
a permanent magnet installed in the mounting hole.
2. A single layer permanent magnet axial flux generator permanent magnet rotor disk according to claim 1, wherein: the outer ring is provided with at least one section in the shape of a circular ring, and carbon fibers are laid in the outer ring along the tangential direction of the outer ring.
3. A single layer permanent magnet axial flux generator permanent magnet rotor disk according to claim 1, wherein: the inside spoke has at least one section with a first shape, and the carbon fiber is laid in the inside spoke in the same direction as the first shape.
4. A single layer permanent magnet axial flux generator permanent magnet rotor disk according to claim 3, wherein: the first shape includes, but is not limited to, one or more of a U-shape, a V-shape, and a fan shape.
5. A single layer permanent magnet axial flux generator permanent magnet rotor disc according to claim 3, wherein: the inner side spokes are provided with openings, and the openings are located on one side, away from the outer ring, of the inner side spokes.
6. A single layer permanent magnet axial flux generator permanent magnet rotor disc according to claim 3, wherein: the width of the inner spoke in a direction away from the outer ring is gradually narrowed.
7. A single layer permanent magnet axial flux generator permanent magnet rotor disk according to claim 1, wherein: the clamping structure comprises a main body and clamping components, wherein the main body is provided with at least one section which is in a ring shape, the main body comprises a first surface and a second surface, the area of the second surface is larger than that of the first surface, the first surface and the second surface are coaxially arranged, and the clamping components are uniformly distributed on the second surface in the circumferential direction.
8. A single layer permanent magnet axial flux generator permanent magnet rotor disk according to claim 1, wherein: the permanent magnet is partially or completely filled in the mounting hole.
9. A method of generating electricity, comprising the steps of:
providing an axial flux generator comprising a stator, a structural main shaft and a single layer permanent magnet axial flux generator permanent magnet rotor disk as claimed in any one of claims 1 to 8;
restraining the permanent magnet by using the carbon fiber structure frame to enable the permanent magnet to bear only compressive stress;
utilizing the clamping structure to increase overall structural strength;
a magnetic field is generated with the permanent magnet.
10. A method of generating electricity according to claim 9, wherein: the structure main shaft drives the single-layer permanent magnet axial flux generator permanent magnet rotor disc to rotate, and a stator winding in the stator cuts the magnetic field to generate current.
CN202211314969.7A 2022-10-26 2022-10-26 Single-layer permanent magnet axial magnetic flux generator permanent magnet rotor disc and power generation method Active CN115395753B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090072639A1 (en) * 2007-09-19 2009-03-19 Richard Lex Seneff Segmented composite rotor
CN111010008A (en) * 2019-12-13 2020-04-14 南京理工大学 Surface-mounted permanent magnet rotor disc of high-strength axial magnetic field motor
CN111509880A (en) * 2019-01-30 2020-08-07 上海盘毂动力科技股份有限公司 Rotor, motor and electric automobile
CN112039241A (en) * 2020-09-16 2020-12-04 沈阳工业大学 High-speed permanent magnet motor rotor with sinusoidal magnetomotive force distribution rule and manufacturing method
US20210265884A1 (en) * 2018-09-24 2021-08-26 Whylot Sas Axial-flux rotor with magnets and body made of layers of composite with fibers of different orientations
CN114614601A (en) * 2022-04-18 2022-06-10 哈尔滨理工大学 Axial magnetic motor rotor
CN217115766U (en) * 2022-04-14 2022-08-02 胡积献 Axial magnetic field motor rotor disc

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090072639A1 (en) * 2007-09-19 2009-03-19 Richard Lex Seneff Segmented composite rotor
US20210265884A1 (en) * 2018-09-24 2021-08-26 Whylot Sas Axial-flux rotor with magnets and body made of layers of composite with fibers of different orientations
CN111509880A (en) * 2019-01-30 2020-08-07 上海盘毂动力科技股份有限公司 Rotor, motor and electric automobile
CN111010008A (en) * 2019-12-13 2020-04-14 南京理工大学 Surface-mounted permanent magnet rotor disc of high-strength axial magnetic field motor
CN112039241A (en) * 2020-09-16 2020-12-04 沈阳工业大学 High-speed permanent magnet motor rotor with sinusoidal magnetomotive force distribution rule and manufacturing method
CN217115766U (en) * 2022-04-14 2022-08-02 胡积献 Axial magnetic field motor rotor disc
CN114614601A (en) * 2022-04-18 2022-06-10 哈尔滨理工大学 Axial magnetic motor rotor

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