CN110798039A - double-V-shaped motor rotor applied to permanent magnet synchronous motor of electric automobile - Google Patents
double-V-shaped motor rotor applied to permanent magnet synchronous motor of electric automobile Download PDFInfo
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- CN110798039A CN110798039A CN201911031516.1A CN201911031516A CN110798039A CN 110798039 A CN110798039 A CN 110798039A CN 201911031516 A CN201911031516 A CN 201911031516A CN 110798039 A CN110798039 A CN 110798039A
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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
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
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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
-
- 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
- H02K21/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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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 double-V-shaped motor rotor applied to a permanent magnet synchronous motor of an electric automobile, a plurality of magnetic poles are arranged in a rotor core along the circumferential direction, a first layer of V-shaped magnetic steel grooves and a second layer of V-shaped magnetic steel grooves are arranged below each magnetic pole, the first layer of V-shaped magnetic steel grooves are arranged close to the surface of the rotor core at intervals along the circumferential direction, the second layer of V-shaped magnetic steel grooves are arranged at two sides of the first layer of V-shaped magnetic steel grooves along the circumferential direction, the first layer of V-shaped magnetic steel grooves and the second layer of V-shaped magnetic steel grooves are symmetrical about the central axis of the magnetic steel grooves, a first layer of magnetic steel and a second layer of magnetic steel which are bonded by resin are respectively arranged in the grooves, the magnetizing direction of the first layer of magnetic steel is approximately radial. The motor rotor overcomes the defects of the traditional permanent magnet synchronous motor, effectively improves the structural strength of the rotor core, reduces the loss of the rotor core and the eddy current loss of magnetic steel, reduces the influence of higher harmonics on the vibration and the noise of the motor, and ensures high efficiency and reliability when the motor runs at high speed.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a double-V-shaped motor rotor applied to a permanent magnet synchronous motor of an electric automobile.
Background
The traditional permanent magnet synchronous motor has the advantages of high power factor, high power density, high efficiency and the like, and is widely applied to the new energy electric automobile industry. However, the conventional permanent magnet synchronous motor can cause the problems of rotor temperature rise, punching strength, vibration, noise and the like at high rotating speed. The structure strength of the rotor core has certain defects, the loss of the rotor core and the eddy current loss of the magnetic steel are large, and the influence of higher harmonics on the vibration and the noise of the motor is high. Therefore, the permanent magnet synchronous motor which can still work efficiently and reliably during high-speed running has great practical significance for application and development in the field of new energy vehicles on the premise of ensuring the performance of the motor.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-V-shaped motor rotor applied to a permanent magnet synchronous motor of an electric automobile, which overcomes the defects of the traditional permanent magnet synchronous motor, effectively improves the structural strength of a rotor core, reduces the loss of the rotor core and the eddy current loss of magnetic steel, reduces the influence of higher harmonics on the vibration and the noise of the motor, and ensures high efficiency and reliability of the motor in high-speed operation.
In order to solve the technical problem, the double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile comprises a rotor core, a plurality of magnetic poles are arranged in the rotor core along the circumferential direction, a first layer of V-shaped magnetic steel grooves and a second layer of V-shaped magnetic steel grooves are arranged below each magnetic pole, the first layer of V-shaped magnetic steel grooves are arranged close to the surface of the rotor core along the circumferential direction at intervals, the second layer of V-shaped magnetic steel grooves are arranged on two sides of the first layer of V-shaped magnetic steel grooves along the circumferential direction, the first layer of V-shaped magnetic steel grooves are symmetrical about the central axis of the magnetic steel grooves, first layer of magnetic steel is arranged in the first layer of V-shaped magnetic steel grooves and is bonded by resin, the second layer of V-shaped magnetic steel grooves are symmetrical about the central axis of the magnetic steel grooves, second layer of magnetic steel is arranged in the second layer of V-shaped magnetic steel grooves and is bonded by resin, the, and the magnetizing direction of the second layer of magnetic steel is approximately tangential.
Further, the first layer of magnetic steel and the second layer of magnetic steel are two long and thin rectangular magnetic steels with the same shape, the long and thin rectangular magnetic steels are made of high-remanence rare earth permanent magnet materials, the thicknesses of the long and thin rectangular magnetic steels of the first layer of magnetic steel and the second layer of magnetic steel are equal, and the width of the long and thin rectangular magnetic steel of the second layer of magnetic steel is larger than that of the long and thin rectangular magnetic steel of the first layer of magnetic steel.
Furthermore, the magnetizing direction of the first layer of magnetic steel and the included angle theta of the axis of the first layer of V-shaped magnetic steel groove1Is 0 DEG < theta1Less than 30 degrees, and the magnetizing direction of the second layer of magnetic steel and the included angle theta of the tangent line of the second layer of V-shaped magnetic steel groove2Is 0 DEG < theta2The magnetizing directions of the first layer of magnetic steel and the second layer of magnetic steel are towards the outer side or the inner side of the rotor core at the same time, and the N pole and the S pole of the magnetizing directions of the magnetic steels are alternately carried out under adjacent magnetic poles of the rotor core.
Further, the first layer of V-shaped magnetic steel grooves are formed in the surface of the rotor core, a first magnetism isolating groove is formed in the surface of the rotor core, a gap is reserved between the first layer of magnetic steel and the first magnetism isolating groove, the second layer of V-shaped magnetic steel grooves are formed in the surface of the rotor core, a second magnetism isolating groove is formed in the surface of the second layer of magnetic steel and the second magnetism isolating groove, reinforcing ribs are arranged at the connecting ends of the first layer of V-shaped magnetic steel grooves, air grooves are formed at the connecting ends of the second layer of V-shaped magnetic steel grooves, and the air grooves are connected with the groove ends of the second layer of V-shaped magnetic steel grooves through the reinforcing ribs.
Furthermore, the surface of the rotor core is provided with two first auxiliary arc-shaped grooves in the first layer of V-shaped magnetic steel groove at intervals, the width of the notch of each first auxiliary arc-shaped groove is 1.5-2.5 mm, the depth of each groove is 0.2-0.8 mm, the included angle b of the two first auxiliary arc-shaped grooves is more than 0 degree and less than b and less than a, wherein a is the polar arc angle of the outer side angle of the first layer of magnetic steel relative to the circle center, and a is more than 12 degrees and less than 22 degrees.
Furthermore, two second auxiliary arc-shaped grooves are arranged on the surface of the rotor core in the second layer of V-shaped magnetic steel grooves at intervals, the width of a notch of each second auxiliary arc-shaped groove is 2-4.5 mm, the depth of each groove is 0.5-1 mm, the included angle d of the two second auxiliary arc-shaped grooves is that d is greater than e and less than c, wherein c is the angle of the outer side of the second layer of magnetic steel relative to the pole arc of the circle center, c is greater than 25 degrees and less than 35 degrees, e is the angle of the inner side of the first layer of magnetic steel relative to the pole arc of the circle center, and e is greater than 15 degrees and less than 25 degrees.
Further, the double-V-shaped motor rotor is arranged on the motor rotating shaft and is positioned in a cavity of the motor stator, an air gap is arranged between the double-V-shaped motor rotor and the motor stator, and the motor stator is provided with an armature winding.
Because the double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile adopts the technical scheme, including rotor core promptly, a plurality of magnetic poles set up inside rotor core along the circumferencial direction, every magnetic pole has first layer V type magnet steel groove and second floor V type magnet steel groove, first layer V type magnet steel groove is located near rotor core surface along the circumferencial direction interval, the both sides in first layer V type magnet steel groove are located to second floor V type magnet steel groove along the circumferencial direction, first layer V type magnet steel groove is symmetrical about magnet steel groove axis, place first layer magnet steel and adopt the resin bonding in the first layer V type magnet steel groove, second floor V type magnet steel groove is symmetrical about magnet steel groove axis, place second floor magnet steel and adopt the resin bonding in the second floor V type magnet steel groove, the direction of magnetizing of first layer magnet steel is radial magnetizing roughly, the direction of magnetizing of second floor magnet steel is roughly tangential magnetizing. The motor rotor overcomes the defects of the traditional permanent magnet synchronous motor, effectively improves the structural strength of the rotor core, reduces the loss of the rotor core and the eddy current loss of magnetic steel, reduces the influence of higher harmonics on the vibration and the noise of the motor, and ensures high efficiency and reliability when the motor runs at high speed.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic view of a double V-shaped motor rotor applied to a permanent magnet synchronous motor of an electric vehicle according to the present invention;
FIG. 2 is a schematic view of an opening angle of magnetic steel in the double-V-shaped motor rotor;
FIG. 3 is a schematic diagram of a position of a first auxiliary arc-shaped groove on the surface of a rotor core in the double-V-shaped motor rotor;
fig. 4 is a schematic diagram of a second auxiliary arc-shaped slot on the surface of the rotor core in the double-V-shaped motor rotor.
Detailed Description
For example, as shown in fig. 1, the double V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric vehicle of the present invention includes a rotor core 3, a plurality of magnetic poles are arranged inside the rotor core 3 along a circumferential direction, a first layer of V-shaped magnetic steel slots 8 and a second layer of V-shaped magnetic steel slots 9 are arranged under each magnetic pole, the first layer of V-shaped magnetic steel slots 8 are arranged close to the surface of the rotor core 3 along the circumferential direction at intervals, the second layer of V-shaped magnetic steel slots 9 are arranged at two sides of the first layer of V-shaped magnetic steel slots 8 along the circumferential direction, the first layer of V-shaped magnetic steel slots 8 are symmetrical with respect to a magnetic steel slot central axis, a first layer of magnetic steel 4 is arranged in the first layer of V-shaped magnetic steel slots 8 and bonded by resin, the second layer of V-shaped magnetic steel slots 9 are symmetrical with respect to the magnetic steel slot central axis, a second layer of magnetic steel 5 is arranged, the magnetizing direction of the first layer of magnetic steel 4 is approximately radial magnetizing, and the magnetizing direction of the second layer of magnetic steel 5 is approximately tangential magnetizing.
Preferably, the first layer of magnetic steel 4 and the second layer of magnetic steel 5 are two long and thin rectangular magnetic steels with the same shape, the long and thin rectangular magnetic steels are made of high-remanence rare earth permanent magnet materials, the thicknesses of the long and thin rectangular magnetic steels of the first layer of magnetic steel 4 and the second layer of magnetic steel 5 are equal, the width of the long and thin rectangular magnetic steel of the second layer of magnetic steel 5 is larger than that of the long and thin rectangular magnetic steel of the first layer of magnetic steel 4, and the selected width is increased by 0.5-1 time.
As shown in fig. 2, preferably, an included angle θ between the magnetizing direction of the first layer of magnetic steel 4 and the axis of the first layer of V-shaped magnetic steel groove 81Is 0 DEG < theta1Less than 30 degrees, and the magnetizing direction of the second layer of magnetic steel 5 and the included angle theta of the tangent line of the second layer of V-shaped magnetic steel groove 92Is 0 DEG < theta2The magnetizing directions of the first layer of magnetic steel 4 and the second layer of magnetic steel 5 are towards the outer side of the rotor core 3 or the inner side of the rotor core 3 at the same time, and the N poles and the S poles of the magnetizing directions of the magnetic steels are alternately carried out under the adjacent magnetic poles of the rotor core 3.
As shown in fig. 1 and 2, preferably, the first layer of V-shaped magnetic steel slots 8 is provided with a first magnetism isolating slot 31 on the surface of the rotor core 3, a gap is left between the first layer of magnetic steel 4 and the first magnetism isolating slot 31, the second layer of V-shaped magnetic steel slots 9 is provided with a second magnetism isolating slot 32 on the surface of the rotor core 3, a gap is left between the second layer of magnetic steel 5 and the second magnetism isolating slot 32, the first layer of V-shaped magnetic steel slots 8 are provided with a reinforcing rib 81 at the connecting end of the slots, the second layer of V-shaped magnetic steel slots 9 are provided with an air slot 91 at the connecting end of the slots, and the air slot 91 is connected with the slot end of the second layer of V-shaped magnetic steel slots 9 through a reinforcing rib 92. A gap is left between the magnetic steel and the magnetism isolating groove, so that the magnetic leakage of the motor can be effectively reduced.
Wherein, the setting of strengthening rib can promote the structural strength of rotor, makes the more suitable high-speed operation of motor.
As shown in fig. 3, preferably, two first auxiliary arc-shaped grooves 33 are arranged on the surface of the rotor core 3 at intervals in the first layer of V-shaped magnetic steel groove 8, the width of the notch of each first auxiliary arc-shaped groove 33 is 1.5-2.5 mm, the depth of each first auxiliary arc-shaped groove 33 is 0.2-0.8 mm, and the included angle b between the two first auxiliary arc-shaped grooves 33 is 0 degree < b < a, where a is the polar arc angle of the outer side angle of the first layer of magnetic steel 4 relative to the center of the circle, and 12 degrees < a < 22 degrees.
As shown in fig. 4, preferably, two second auxiliary arc-shaped grooves 34 are arranged on the surface of the rotor core 3 at intervals in the second layer of V-shaped magnetic steel grooves 9, the width of the notch of each second auxiliary arc-shaped groove 34 is 2-4.5 mm, the depth of each second auxiliary arc-shaped groove is 0.5-1 mm, the included angle d between the two second auxiliary arc-shaped grooves 34 is e < d < c, wherein c is the polar arc angle of the outer side angle of the second layer of magnetic steel 5 relative to the center of the circle, c is greater than 25 degrees and less than 35 degrees, e is the polar arc angle of the inner side angle of the first layer of magnetic steel 4 relative to the center of the circle, and e is greater than 15 degrees.
The arrangement of the first auxiliary arc-shaped groove and the second auxiliary arc-shaped groove can improve the air gap flux density waveform of the motor, and the influence of higher harmonics on the loss and vibration of the motor is reduced.
Preferably, the double-V motor rotor is arranged on the motor rotating shaft 7 and is located in a cavity of the motor stator 1, an air gap is arranged between the double-V motor rotor and the motor stator 1, and the motor stator 1 is provided with the armature winding 2.
This two V type electric motor rotor sets up two-layer magnet steel through two-layer V type magnet steel groove, and two-layer magnet steel is the V-arrangement and distributes, effectively improves the power density of motor, and improves rotor core structural strength through setting up such as corresponding magnetism isolating slot, air bridge, strengthening rib and supplementary arc wall, reduces rotor core loss and magnet steel eddy current loss, reduces the influence of higher harmonic to motor vibration, noise, ensures the high-efficient reliable when the motor high-speed operation. Therefore, the motor is more suitable for high-speed operation, the air gap flux density waveform of the motor can be effectively improved, the higher harmonic content is reduced, the iron loss of the motor can be reduced, the overhigh temperature rise at high speed is prevented, the torque pulsation of the motor is reduced, and the vibration and noise of the motor are improved.
The double-V-shaped motor rotor is provided with the double-V-shaped magnetic steel, compared with the traditional built-in V-shaped structure, the double-V-shaped motor rotor can improve the reluctance torque utilization rate of the motor, and the use of the high-performance magnetic steel is beneficial to reducing the volume of the motor, so that the motor is more suitable for high-speed operation; the use of the auxiliary slot on the surface of the rotor can effectively improve the air gap flux density, and by reducing the content of higher harmonics, on one hand, the iron loss of the motor at high speed can be reduced, the overhigh temperature rise of the rotor can be prevented, on the other hand, the high-order radial electromagnetic force of the motor can be reduced, and the vibration and the noise of the motor at high speed can be reduced; the use of a plurality of reinforcing ribs between the V-shaped magnetic steel grooves ensures that the mechanical strength of the punching sheet can be ensured and the service life of the motor can be prolonged when the motor runs at high speed.
Claims (7)
1. The utility model provides a be applied to electric automobile PMSM's two V type electric motor rotor, includes rotor core, a plurality of magnetic poles along the circumferencial direction set up in inside the rotor core, its characterized in that: first layer V type magnet steel groove and second floor V type magnet steel groove are equipped with under every magnetic pole, first layer V type magnet steel groove is located along the circumferencial direction interval and is close to the rotor core surface, second floor V type magnet steel groove is located along the circumferencial direction the both sides in first layer V type magnet steel groove, first layer V type magnet steel groove is symmetrical about magnet steel groove axis, place first layer magnet steel and adopt the resin bonding in the first layer V type magnet steel groove, second floor V type magnet steel groove is symmetrical about magnet steel groove axis, place second floor magnet steel and adopt the resin bonding in the second floor V type magnet steel groove, the direction of magnetizing of first layer magnet steel is radial magnetization roughly, the direction of magnetizing of second floor magnet steel is the tangential magnetization roughly.
2. The double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile according to claim 1, characterized in that: the first layer of magnetic steel and the second layer of magnetic steel are two long and thin rectangular magnetic steels with the same shape, the long and thin rectangular magnetic steels are high-remanence rare earth permanent magnet materials, the thicknesses of the long and thin rectangular magnetic steels of the first layer of magnetic steel and the second layer of magnetic steel are equal, and the width of the long and thin rectangular magnetic steel of the second layer of magnetic steel is larger than that of the long and thin rectangular magnetic steel of the first layer of magnetic steel.
3. The double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile according to claim 1, characterized in that: the magnetizing direction of the first layer of magnetic steel and the included angle theta of the axis of the first layer of V-shaped magnetic steel groove1Is 0 DEG < theta1Less than 30 degrees, and the magnetizing direction of the second layer of magnetic steel and the included angle theta of the tangent line of the second layer of V-shaped magnetic steel groove2Is 0 DEG < theta2The magnetizing directions of the first layer of magnetic steel and the second layer of magnetic steel are towards the outer side or the inner side of the rotor core at the same time, and the N pole and the S pole of the magnetizing directions of the magnetic steels are alternately carried out under adjacent magnetic poles of the rotor core.
4. The double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile according to claim 1, characterized in that: the rotor comprises a rotor core and is characterized in that a first layer of V-shaped magnetic steel grooves are formed in the surface of the rotor core, a first magnetism isolating groove is formed in the surface of the rotor core, a gap is reserved between the first layer of magnetic steel and the first magnetism isolating groove, a second layer of V-shaped magnetic steel grooves are formed in the surface of the rotor core, a second magnetism isolating groove is formed in the surface of the second magnetism isolating groove, a gap is reserved between the second layer of magnetic steel and the second magnetism isolating groove, reinforcing ribs are arranged at the connecting ends of the first layer of V-shaped magnetic steel grooves, air grooves are formed in the connecting ends of the second layer of V-shaped magnetic steel grooves, and the air grooves are connected with the groove ends of the second.
5. The double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile according to claim 1, characterized in that: the rotor core surface is equipped with two first auxiliary arc wall at the interval in the first layer V type magnet steel groove, the notch width of first auxiliary arc wall is 1.5 ~ 2.5mm, the groove depth is 0.2 ~ 0.8mm, the contained angle b of two first auxiliary arc wall is 0 degree < b < a, wherein, a is the polar arc angle of first layer magnet steel outside angle for the centre of a circle, 12 degree < a < 22.
6. The double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile according to claim 1, characterized in that: the rotor core surface is in the second layer V type magnet steel inslot is equipped with two second auxiliary arc wall at an interval, the notch width of second auxiliary arc wall is 2 ~ 4.5mm, the groove depth is 0.5 ~ 1mm, the contained angle d of two second auxiliary arc wall is e < d < c, wherein, c is the polar arc angle of second layer magnet steel outside angle for the centre of a circle, 25 degrees < c < 35 degrees, e is the polar arc angle of first layer magnet steel inside angle for the centre of a circle, 15 degrees < e < 25 degrees.
7. The double-V-shaped motor rotor applied to the permanent magnet synchronous motor of the electric automobile according to any one of claims 1 to 6, characterized in that: the double-V-shaped motor rotor is arranged on a motor rotating shaft and is positioned in a cavity of the motor stator, an air gap is arranged between the double-V-shaped motor rotor and the motor stator, and the motor stator is provided with an armature winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031516.1A CN110798039A (en) | 2019-10-28 | 2019-10-28 | double-V-shaped motor rotor applied to permanent magnet synchronous motor of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031516.1A CN110798039A (en) | 2019-10-28 | 2019-10-28 | double-V-shaped motor rotor applied to permanent magnet synchronous motor of electric automobile |
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| Publication Number | Publication Date |
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| CN110798039A true CN110798039A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911031516.1A Withdrawn CN110798039A (en) | 2019-10-28 | 2019-10-28 | double-V-shaped motor rotor applied to permanent magnet synchronous motor of electric automobile |
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| CN (1) | CN110798039A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112653274A (en) * | 2020-12-25 | 2021-04-13 | 上海电气集团股份有限公司 | Rotor punching sheet and permanent magnet motor rotor |
| CN112865367A (en) * | 2021-01-19 | 2021-05-28 | 浙江零跑科技有限公司 | Permanent magnet motor rotor structure for electric automobile |
| CN112953055A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Rotor structure, motor and vehicle |
| CN113036965A (en) * | 2020-12-31 | 2021-06-25 | 上海大学 | Method for reducing magnetic steel eddy current loss of full neodymium iron boron permanent magnet motor at high speed and motor structure |
| WO2021244478A1 (en) * | 2020-06-01 | 2021-12-09 | 广州汽车集团股份有限公司 | Permanent magnet electric motor rotor and permanent magnet electric motor |
| CN114513069A (en) * | 2021-12-17 | 2022-05-17 | 天津大学 | Permanent magnet starting/power generator double V-shaped rotor for hybrid electric vehicle |
| CN114513070A (en) * | 2022-01-19 | 2022-05-17 | 浙江零跑科技股份有限公司 | Novel motor rotor |
| WO2022116533A1 (en) * | 2020-12-04 | 2022-06-09 | 上海威迈斯新能源有限公司 | Rotor and motor |
| DE102020215316A1 (en) | 2020-12-03 | 2022-06-09 | Valeo Siemens Eautomotive Germany Gmbh | Rotor of an electrical machine |
| CN114629268A (en) * | 2022-02-16 | 2022-06-14 | 珠海英搏尔电气股份有限公司 | Motor rotor, motor and vehicle |
| WO2023077966A1 (en) * | 2021-11-04 | 2023-05-11 | 安徽威灵汽车部件有限公司 | Electric motor and vehicle |
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| CN108988528A (en) * | 2018-07-11 | 2018-12-11 | 杭州中科赛思伺服电机有限公司 | The rotor core of motor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021244478A1 (en) * | 2020-06-01 | 2021-12-09 | 广州汽车集团股份有限公司 | Permanent magnet electric motor rotor and permanent magnet electric motor |
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| CN112865367A (en) * | 2021-01-19 | 2021-05-28 | 浙江零跑科技有限公司 | Permanent magnet motor rotor structure for electric automobile |
| CN112953055A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Rotor structure, motor and vehicle |
| WO2023077966A1 (en) * | 2021-11-04 | 2023-05-11 | 安徽威灵汽车部件有限公司 | Electric motor and vehicle |
| CN114513069A (en) * | 2021-12-17 | 2022-05-17 | 天津大学 | Permanent magnet starting/power generator double V-shaped rotor for hybrid electric vehicle |
| CN114513070A (en) * | 2022-01-19 | 2022-05-17 | 浙江零跑科技股份有限公司 | Novel motor rotor |
| CN114513070B (en) * | 2022-01-19 | 2024-03-08 | 浙江零跑科技股份有限公司 | Novel motor rotor |
| CN114629268A (en) * | 2022-02-16 | 2022-06-14 | 珠海英搏尔电气股份有限公司 | Motor rotor, motor and vehicle |
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Application publication date: 20200214 |