CN117294046A - A rotor disk for a disk motor - Google Patents
A rotor disk for a disk motor Download PDFInfo
- Publication number
- CN117294046A CN117294046A CN202311157221.5A CN202311157221A CN117294046A CN 117294046 A CN117294046 A CN 117294046A CN 202311157221 A CN202311157221 A CN 202311157221A CN 117294046 A CN117294046 A CN 117294046A
- Authority
- CN
- China
- Prior art keywords
- rotor
- disk
- connecting seat
- magnetic steel
- inner ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a rotor disk for a disk motor, comprising: the magnetic steel grooves are uniformly distributed on one side of the rotor disc, which is close to the outer circumference; the plurality of strip-shaped grooves are in one-to-one correspondence with the plurality of magnetic steel grooves and are radially arranged on the inner ring of the rotor disc, so that the strip-shaped grooves penetrate through the inner ring shaft hole and the magnetic steel grooves of the rotor disc. The invention provides a rotor disk for a disk motor, which does not change the original rotor overall structure, and the number of grooves is consistent with that of magnetic steels through the grooving design of the inner ring of the rotor, so that the eddy current paths generated by the magnetic steels are disconnected, thereby fundamentally avoiding the generation of eddy currents and reducing the rotor loss.
Description
Technical Field
The invention relates to the technical field of disc motors, in particular to a rotor disc for a disc motor.
Background
The disk motor, namely the axial flux motor, is mainly applicable to hybrid electric vehicle driving systems, electric drive axle hub power assemblies and three-in-one power assemblies with high structural size limit or higher dynamic property, and is applicable to new energy vehicles such as electric racing vehicles, high-performance sedan cars, electric commercial vehicles and the like.
The disc motor is mainly applied to medium and low rotation speed sections, and if the working rotation speed is to be increased, one current implementation method is to reduce the eddy current loss of a rotor by increasing a cooling mode and radiating the generated heat loss, for example, oiling the inside of the motor is adopted to reduce the eddy current loss, or a heat dissipation air duct is increased. Through promoting the radiating effect for disc motor can work under higher rotational speed, but limited by disc motor's volume and radiating efficiency, the rotational speed that can promote is limited, and can not adapt to current industry demand.
Therefore, how to provide a disc motor capable of operating at a high rotation speed to meet the current industrial requirements is a current problem to be solved.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a rotor disc for a disc motor, so as to solve the problem that the disc motor in the prior art is limited by volume and heat dissipation efficiency and cannot meet the high-rotation-speed operation requirement of the current industry.
An embodiment of the present invention provides a rotor disk for a disk motor, including:
the magnetic steel grooves are uniformly distributed on one side of the rotor disc, which is close to the outer circumference;
the plurality of strip-shaped grooves are in one-to-one correspondence with the plurality of magnetic steel grooves and are radially arranged on the inner ring of the rotor disc, so that the strip-shaped grooves penetrate through the inner ring shaft hole of the rotor disc and the magnetic steel grooves.
Optionally, the method further comprises:
and the abdication holes are arranged at four vertexes of each magnetic steel groove.
Optionally, the magnetic steel grooves are axially penetrated and arranged on the rotor disc, and partition strips with the same width are arranged between two adjacent magnetic steel grooves.
Optionally, the method further comprises:
the pair of limit strips are arranged at the edges of the partition strips; the limiting strips are arranged on the same side of the rotor disc; the limit strip is used for placing magnetic steel.
Optionally, the method further comprises:
the magnetic steel pressing plate is fixed on the partition strip through a bolt; the magnetic steel pressing plate is used for fixing two adjacent magnetic steels.
Optionally, the method further comprises:
the T-shaped positioning block is assembled at the positions of the strip-shaped groove and the magnetic steel groove; the thickness of the T-shaped positioning block is consistent with that of the rotor disc; the length of the rib of the T-shaped positioning block is consistent with the width of the corresponding position of the magnetic steel groove, the width of the main body of the T-shaped positioning block is consistent with the width of the strip-shaped groove, and the main body of the T-shaped positioning block is clamped in the strip-shaped groove to eliminate the deformation gap of the inner ring circular ring; the T-shaped positioning block is made of insulating materials.
Optionally, the method further comprises:
an insulating ring fixed on the inner ring of the inner ring circular ring; a plurality of T-shaped positioning blocks are fixed on the insulating ring; or, a plurality of T-shaped positioning blocks and the insulating ring are of an integrated structure.
Optionally, the method further comprises:
the first connecting seat is fixed on one side of the rotor disc through a bolt;
wherein, insulating spraying treatment is carried out on the contact surface of the first connecting seat and the rotor disk; the first connecting seat is fixedly connected with the motor rotating shaft; the inner ring bulge of the first connecting seat is tightly contacted with the inner side of the inner ring circular ring; one side of the insulating ring is provided with an everting structure which is clamped between the inner rings of the first connecting seat.
Optionally, the method further comprises:
the second connecting seat is fixed on one side of the rotor disc through a bolt; the second connecting seat is fixedly connected with the motor rotating shaft;
the third connecting seat is fixed on the other side of the rotor disc through a bolt;
the contact surface of the second connecting seat and the rotor disc and the contact surface of the third connecting seat and the rotor disc are subjected to insulation spraying treatment; the inner ring bulges of the second connecting seat and the inner ring bulges of the third connecting seat are in close contact with the inner side of the inner ring of the rotor disc; the second connecting seat and the third connecting seat are partially pressed together with the T-shaped positioning block.
Optionally, determining the opening position of the corresponding strip-shaped groove according to the central line of each magnetic steel groove; each slot is located on the diameter of the rotor disk.
The embodiment of the invention has the beneficial effects that:
the embodiment of the invention provides a rotor disk for a disk motor, which does not change the original rotor overall structure, and the number of grooves is consistent with that of magnetic steels through the grooving design of the inner ring of the rotor, so that the eddy current paths generated by the magnetic steels are disconnected, thereby fundamentally avoiding the generation of eddy currents and greatly reducing the eddy current loss of the rotor.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the invention in any way, in which:
fig. 1 shows a rotor disc body structure diagram for a disc motor in an embodiment of the present invention.
FIG. 2 illustrates an assembled side view of a rotor disk and magnetic steel for a disk motor in accordance with an embodiment of the present invention;
FIG. 3 shows a block diagram of a T-shaped positioning block for a disk motor in accordance with an embodiment of the present invention;
FIG. 4 illustrates an assembled side view of a rotor disk for a disk motor in accordance with an embodiment of the present invention;
FIG. 5 shows a block diagram of a connection base for a disc motor in accordance with an embodiment of the present invention;
FIG. 6 illustrates an assembled side view of another rotor disk for a disk motor in accordance with an embodiment of the present invention;
fig. 7 shows an assembled exploded view of a rotor disk for a disk motor in accordance with an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The embodiment of the invention provides a rotor disk for a disk motor, which comprises a plurality of magnetic steel grooves 1 and a plurality of strip-shaped grooves 3, wherein the magnetic steel grooves 1 are uniformly distributed on one side, close to the outer circumference 2, of the rotor disk; the strip-shaped grooves 3 are in one-to-one correspondence with the magnetic steel grooves 1 and are radially arranged on the inner ring 4 of the rotor disc, so that the strip-shaped grooves 3 penetrate through the inner ring shaft hole of the rotor disc and the magnetic steel grooves 1.
In this embodiment, the inner ring of the rotor is provided with the strip-shaped grooves, the number of the strip-shaped grooves is identical to that of the magnetic steels, as shown in fig. 1 and 2, the inner ring 4 is uniformly cut by the strip-shaped grooves 3, and thus the eddy current path generated by the magnetic steels is broken, and the generation of eddy current is avoided from the root.
As an alternative embodiment, a relief hole 5 is also included, disposed at the four vertices of each magnetic steel groove 1.
In this embodiment, as shown in fig. 1, the yielding holes 5 are disposed around the magnetic steel groove 1, so as to avoid the extrusion of the four ends of the magnetic steel during the rotation of the rotor disk, which leads to the fragmentation of the magnetic steel.
As an alternative embodiment, the magnetic steel grooves 1 are axially and penetratingly arranged on the rotor disc, and partition strips 6 with the same width are arranged between two adjacent magnetic steel grooves 1.
In this embodiment, as shown in fig. 1, the magnetic steel groove 1 has the shape of an isosceles trapezoid. In a specific embodiment, the rotor disk is integrally formed.
As an alternative embodiment, further comprising: a pair of limit bars 7 are arranged at the edges of the partition bars 6. Wherein the limit bars 7 are arranged on the same side of the rotor disc. The limit strip 7 is used for placing the magnetic steel 8. The magnetic steel pressing plate 9 is fixed on the partition strip 6 through bolts; the magnetic steel pressing plate 9 is used for fixing two adjacent magnetic steels 8.
In this embodiment, as shown in fig. 1 and 2, the limit bar 7 cooperates with the magnetic steel pressing plate 9 to realize the fixed assembly function for the magnetic steel 8.
As an alternative embodiment, it further comprises a T-shaped positioning block 10 fitted at the bar slot 3 and the magnetic steel slot 1. The thickness of the T-shaped positioning block 10 is consistent with the thickness of the rotor disc; the length of the rib of the T-shaped positioning block 10 is consistent with the width of the corresponding position of the magnetic steel groove 1, the width of the main body of the T-shaped positioning block 10 is consistent with the width of the strip-shaped groove 3, and the main body of the T-shaped positioning block 10 is clamped in the strip-shaped groove 3 to eliminate the deformation gap of the inner ring circular ring; the T-shaped positioning block 10 is made of insulating materials.
In this embodiment, as shown in fig. 2 and 3, the material of the T-shaped positioning block 10 is selected from PPS materials with high strength, which can play a role in supporting and buffering, and prevent the magnetic steel from being broken by impact.
In a specific embodiment, the thickness of the T-shaped positioning block is the same as or is close to optimal to the thickness of the rotor disc, and the thickness of the rib assembled at the magnetic steel groove is set according to the size of the rotor disc. In a specific embodiment, the thickness of the T-shaped positioning block is selected to be 1.5mm-4mm, and the purpose of the T-shaped positioning block is mainly to support and buffer, so that the situation that the magnetic steel is cracked due to stress deformation of the rotor disc is prevented.
As an alternative embodiment, the device further comprises an insulating ring fixed on the inner ring of the inner ring circular ring 4, and a plurality of T-shaped positioning blocks 10 are fixed on the insulating ring; or, a plurality of T-shaped positioning blocks 10 and the insulating ring are of an integrated structure.
In the embodiment, the strength of the rotor disc is increased through the insulating ring and the T-shaped positioning block.
As an alternative embodiment, a first connection seat 11 fixed to one side of the rotor disk by bolts is further included. Wherein, insulation spraying treatment is carried out on the contact surface of the first connecting seat 11 and the rotor disk; the first connecting seat 11 is fixedly connected with the motor rotating shaft; the inner ring bulge of the first connecting seat 11 is tightly contacted with the inner side of the inner ring circular ring 4; one side of the insulating ring is provided with an everting structure which is clamped between the inner rings 4 of the first connecting seat.
As shown in fig. 4, in this embodiment, the integrated T-shaped positioning block and insulating ring structure is adopted, and only one connecting seat disc may be used to connect the rotor disc with the rotating shaft, the inner ring of the first connecting seat 11 is in a threaded structure, or is fixedly connected with the rotating shaft of the motor in a welding manner, and the first connecting seat 11 and the rotor disc are fixed by bolts. In a specific embodiment, the inner ring protrusion of the first connecting seat 11 is nested in the inner ring of the insulating ring, the insulating ring is nested in the inner ring of the rotor disk, and the three are in close contact, so that the strength of the inner ring is improved. The contact surface of the first connecting seat 11 and the rotor disk is subjected to insulating spraying, so that the disconnection of the vortex path is ensured, and the complete blocking of the vortex path is realized.
As an alternative embodiment, a second connection seat 12 and a third connection seat 13 are further included, wherein the second connection seat is fixed at one side of the rotor disk through bolts; the second connecting seat 12 is fixedly connected with the motor rotating shaft; the third connecting seat 13 is fixed on the other side of the rotor disc through bolts; performing insulation spraying treatment on the contact surface of the second connecting seat 12 and the rotor disc and the contact surface of the third connecting seat 13 and the rotor disc; the inner ring bulges of the second connecting seat 12 and the inner ring bulges of the third connecting seat 13 are in close contact with the inner side of the inner ring 4 of the rotor disc; the second connecting seat 12 and the third connecting seat 13 are partially pressed together with the T-shaped positioning block 10.
In this embodiment, as shown in fig. 5 to 7, two connecting seats are provided on two sides of the rotor disc, so that on one hand, the strength of the inner ring of the rotor disc is improved, and the high-rotation-speed operation of the motor rotor can be realized, and on the other hand, the structure is fixed by pressing the T-shaped positioning blocks.
As an alternative embodiment, the first connecting seat 11 and the motor shaft are in an integral structure, the first connecting seat 11 is not provided with an inner ring protrusion, the first connecting seat 11 is not subjected to insulation spraying treatment, and an insulation gasket is arranged between the first connecting seat 11 and the rotor disc to ensure insulation of the first connecting seat 11 and the rotor disc.
As an alternative embodiment, the third connecting seat 13 and the motor shaft are in an integrated structure, the third connecting seat 13 is not provided with an inner ring protrusion, the third connecting seat 13 is not subjected to insulation spraying treatment, and as shown in fig. 7, an insulation gasket 14 is arranged between the rotor disc and the third connecting seat 13 to prevent the rotor disc and the third connecting seat from being conducted.
Table 1 comparison results of conventional disc motor and disc motor of this example
As can be seen from table 1, by the disc motor provided in this embodiment, the eddy current loss of the rotor disc is reduced by 67W at a rotation speed of 1500rpm and a power of 21kW, and the corresponding efficiency is improved by 0.3%. At a rotation speed of 2500rpm and a power of 35kW, the eddy current loss of the rotor disk is reduced by 205W, and the corresponding efficiency is improved by 0.53%. At 2500rpm and 21kW, the eddy current loss of the rotor disk is reduced by 169W, and the corresponding efficiency is improved by 0.76%. At a rotation speed of 2500rpm and a power of 35kW, the eddy current loss of the rotor disk is reduced by 442W, and the corresponding efficiency is improved by 1.2%. The above data demonstrate that the rotor disk of the present embodiment has significant advantages at high rotational speeds and high power.
The rotor disc provided by the embodiment can increase the highest working speed of the disc motor by one time, from 3500-4000rpm at present to 6500-7000rpm, the power is increased by 30% -40%, the volume of the motor can be reduced by 15-20% under the same power condition, and the application coverage of the motor can be further increased.
In addition, the rotor disk provided by the embodiment is provided with the strip-shaped grooves on the inner ring of the rotor disk without increasing the material cost, so that the vortex path is blocked, the PPS plastic with high cost performance is also selected for the corresponding structural reinforcement scheme of the strip-shaped grooves, the strength and balance weight removal problems of the rotor disk are comprehensively optimized, and the risk of cracking of the rotor disk at high rotating speed can be avoided.
The invention provides a rotor disk for a disk motor, which does not change the original rotor overall structure, and the number of grooves is consistent with that of magnetic steels through the grooving design of the inner ring of the rotor, so that the eddy current paths generated by the magnetic steels are disconnected, thereby fundamentally avoiding the generation of eddy currents and greatly reducing the eddy current loss of the rotor.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations are within the scope of the invention as defined by the appended claims.
Claims (10)
1. A rotor disk for a disk motor, comprising:
a plurality of magnetic steel grooves (1) are uniformly distributed on one side of the rotor disc, which is close to the outer circumference (2);
the strip-shaped grooves (3) are in one-to-one correspondence with the magnetic steel grooves (1) and are radially arranged on the inner ring circular ring (4) of the rotor disc, so that the strip-shaped grooves (3) penetrate through the inner ring shaft hole of the rotor disc and the magnetic steel grooves (1).
2. A rotor disc for a disc motor according to claim 1, further comprising:
and the abdication holes (5) are arranged at four vertexes of each magnetic steel groove (1).
3. Rotor disk for a disk motor according to claim 1, characterized in that the magnetic steel grooves (1) are axially and penetratingly opened on the rotor disk, and a partition strip (6) with the same width is arranged between two adjacent magnetic steel grooves (1).
4. A rotor disk for a disk motor according to claim 3, further comprising:
a pair of limit strips (7) arranged at the edges of the partition strips (6); wherein the limit strips (7) are arranged on the same side of the rotor disc; the limit strips (7) are used for placing magnetic steel (8).
5. The rotor disk for a disk motor as claimed in claim 4, further comprising:
the magnetic steel pressing plate (9) is fixed on the partition strip (6) through bolts; the magnetic steel pressing plates (9) are used for fixing two adjacent magnetic steels (8).
6. A rotor disc for a disc motor according to claim 1, further comprising:
the T-shaped positioning block (10) is assembled at the positions of the strip-shaped groove (3) and the magnetic steel groove (1); the thickness of the T-shaped positioning block (10) is consistent with that of the rotor disc; the length of the rib of the T-shaped positioning block (10) is consistent with the width of the corresponding position of the magnetic steel groove (1), the width of the main body of the T-shaped positioning block (10) is consistent with the width of the strip-shaped groove (3), and the main body of the T-shaped positioning block (10) is clamped in the strip-shaped groove (3) to eliminate the deformation gap of the inner ring circular ring (4); the T-shaped positioning block (10) is made of insulating materials.
7. The rotor disk for a disk motor as claimed in claim 6, further comprising:
the insulating ring is fixed on the inner ring of the inner ring circular ring (4); a plurality of T-shaped positioning blocks (10) are fixed on the insulating ring; or, a plurality of T-shaped positioning blocks (10) and the insulating ring are of an integrated structure.
8. The rotor disk for a disk motor as claimed in claim 7, further comprising:
the first connecting seat (11) is fixed on one side of the rotor disc through bolts;
wherein, insulating spraying treatment is carried out on the contact surface of the first connecting seat (11) and the rotor disk; the first connecting seat (11) is fixedly connected with the motor rotating shaft; the inner ring bulge of the first connecting seat (11) is tightly contacted with the inner side of the inner ring circular ring (4); one side of the insulating ring is provided with an everting structure which is clamped between the inner ring circular rings (4) of the first connecting seat.
9. The rotor disk for a disk motor as claimed in claim 6, further comprising:
a second connecting seat (12) fixed on one side of the rotor disk through bolts; the second connecting seat (12) is fixedly connected with the motor rotating shaft;
the third connecting seat (13) is fixed on the other side of the rotor disc through a bolt;
wherein, the contact surface of the second connecting seat (12) and the rotor disk and the contact surface of the third connecting seat (13) and the rotor disk are subjected to insulation spraying treatment; the inner ring bulges of the second connecting seat (12) and the inner ring bulges of the third connecting seat (13) are in close contact with the inner side of the inner ring (4) of the rotor disc; the second connecting seat (12) and the third connecting seat (13) are partially pressed together with the T-shaped positioning block (10).
10. Rotor disk for a disk electric machine according to claim 1, characterized in that the opening position of the corresponding bar-shaped groove (3) is determined according to the center line of each magnetic steel groove; each of the bar grooves (3) is located on the diameter of the rotor disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311157221.5A CN117294046B (en) | 2023-09-08 | 2023-09-08 | A rotor disc for a disc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311157221.5A CN117294046B (en) | 2023-09-08 | 2023-09-08 | A rotor disc for a disc motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117294046A true CN117294046A (en) | 2023-12-26 |
| CN117294046B CN117294046B (en) | 2025-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311157221.5A Active CN117294046B (en) | 2023-09-08 | 2023-09-08 | A rotor disc for a disc motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117294046B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118539630A (en) * | 2024-07-23 | 2024-08-23 | 小米汽车科技有限公司 | Axial flux electric machine and vehicle |
| CN119231802A (en) * | 2024-10-08 | 2024-12-31 | 仪坤动力科技(无锡)有限公司 | A disc-type motor rotor disk capable of reducing rotor heating and a processing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136090A (en) * | 2007-11-30 | 2009-06-18 | Sumitomo Electric Ind Ltd | Rotor plate |
| CN207968113U (en) * | 2018-04-12 | 2018-10-12 | 核心驱动科技（金华）有限公司 | A kind of motor in axial magnetic field rotor assembly |
| CN113300515A (en) * | 2021-06-11 | 2021-08-24 | 山东大学 | Tangential magnet structure disc type axial magnetic field permanent magnet brushless motor structure and method thereof |
| CN113364179A (en) * | 2021-06-21 | 2021-09-07 | 上海盘毂动力科技股份有限公司 | Rotor capable of reducing eddy current loss |
| CN218850482U (en) * | 2022-09-21 | 2023-04-11 | 上海盘毂动力科技股份有限公司 | Rotor core and rotor of axial magnetic field motor |
-
2023
- 2023-09-08 CN CN202311157221.5A patent/CN117294046B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136090A (en) * | 2007-11-30 | 2009-06-18 | Sumitomo Electric Ind Ltd | Rotor plate |
| CN207968113U (en) * | 2018-04-12 | 2018-10-12 | 核心驱动科技（金华）有限公司 | A kind of motor in axial magnetic field rotor assembly |
| CN113300515A (en) * | 2021-06-11 | 2021-08-24 | 山东大学 | Tangential magnet structure disc type axial magnetic field permanent magnet brushless motor structure and method thereof |
| CN113364179A (en) * | 2021-06-21 | 2021-09-07 | 上海盘毂动力科技股份有限公司 | Rotor capable of reducing eddy current loss |
| CN218850482U (en) * | 2022-09-21 | 2023-04-11 | 上海盘毂动力科技股份有限公司 | Rotor core and rotor of axial magnetic field motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118539630A (en) * | 2024-07-23 | 2024-08-23 | 小米汽车科技有限公司 | Axial flux electric machine and vehicle |
| CN119231802A (en) * | 2024-10-08 | 2024-12-31 | 仪坤动力科技(无锡)有限公司 | A disc-type motor rotor disk capable of reducing rotor heating and a processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117294046B (en) | 2025-10-31 |
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Effective date of registration: 20240116 Address after: 214174 Yanxing Road 55-2, Yanqiao Supporting Area, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Applicant after: Yikun Power Technology (Wuxi) Co.,Ltd. Address before: No. 16-21 Wensu Street, Hunnan District, Shenyang City, Liaoning Province, 110170 Applicant before: Shengke Pantong Power Technology (Shenyang) Co.,Ltd. |
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