CN112152356B - Permanent magnet auxiliary synchronous reluctance motor for electric automobile - Google Patents
Permanent magnet auxiliary synchronous reluctance motor for electric automobile Download PDFInfo
- Publication number
- CN112152356B CN112152356B CN202010885766.8A CN202010885766A CN112152356B CN 112152356 B CN112152356 B CN 112152356B CN 202010885766 A CN202010885766 A CN 202010885766A CN 112152356 B CN112152356 B CN 112152356B
- Authority
- CN
- China
- Prior art keywords
- magnetic barrier
- magnetic
- barrier
- permanent magnet
- synchronous reluctance
- 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.)
- Active
Links
Images
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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- 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
- H02K21/021—Means for mechanical adjustment of the excitation flux
- H02K21/028—Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections
-
- 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
-
- 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)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a permanent magnet auxiliary synchronous reluctance motor for an electric automobile. The problems of large torque pulsation, narrow high-speed weak magnetic constant power range, low motor efficiency and low power density of a permanent magnet auxiliary synchronous reluctance motor in the prior art are solved. The motor includes rotor core, is provided with a plurality of magnetic barriers group on the rotor core, and magnetic barriers group is including the first magnetic barrier, second magnetic barrier and the third magnetic barrier of arranging along d axle interval, and first magnetic barrier is divided into two storage tanks through well disconnected portion, and second magnetic barrier and third magnetic barrier separate into four storage tanks through well disconnected portion side respectively, are provided with the ferrite in first magnetic barrier and third magnetic barrier, are provided with the tombarthite permanent magnet in the second magnetic barrier. The invention improves the power density and efficiency of the motor, and greatly improves the range of the motor with high weak magnetic constant power. The ferrite and the rare earth permanent magnet are mixed for use, so that the low-temperature demagnetization resistance of the ferrite is greatly improved, the magnetic density distribution is improved, and the torque pulsation is reduced.
Description
Technical Field
The invention relates to the technical field of synchronous motors, in particular to a permanent magnet auxiliary synchronous reluctance motor for an electric automobile.
Background
At present, the permanent magnet synchronous reluctance motor is more and more widely applied, but the commonly used rare earth permanent magnet is very expensive and accounts for about 50% of the raw material cost of the whole motor, the torque with the same size is increased, the reluctance torque proportion is improved, the permanent magnet torque is reduced, the corresponding magnetic steel consumption of the permanent magnet is also reduced, and the permanent magnet cost of the motor is also reduced, so that the development of a rare earth-less or even rare earth-free permanent magnet auxiliary synchronous reluctance motor is a future trend.
In order to pursue high saliency, the current permanent magnet auxiliary synchronous reluctance motor is generally designed to be of a multi-layer magnetic barrier structure, and permanent magnets or ferrite are inserted into the magnetic barriers to improve the efficiency and power density of the motor. However, compared with a common built-in permanent magnet synchronous motor, the conventional permanent magnet auxiliary synchronous reluctance motor has the defects of large torque pulsation, narrow high-speed weak-magnetic constant power range, low efficiency and power density and the like.
Disclosure of Invention
The invention mainly solves the problems of large torque pulsation, narrow high-speed weak magnetic constant power range, low motor efficiency and low power density of a permanent magnetic auxiliary synchronous reluctance motor in the prior art, and provides the permanent magnetic auxiliary synchronous reluctance motor for the electric automobile.
The technical problem of the invention is mainly solved by the following technical scheme: the utility model provides a synchronous reluctance motor is assisted to permanent magnetism for electric automobile, includes rotor core, is provided with a plurality of magnetic barriers group along the axial on the rotor core, magnetic barrier group includes first magnetic barrier, second magnetic barrier and the third magnetic barrier that the outside-in arranged along d axle interval at least, is provided with well wall portion on the first magnetic barrier, separates first magnetic barrier and forms two storage tanks, is provided with well wall portion and the side wall portion that is located both sides on second magnetic barrier and the third magnetic barrier respectively, separates into four storage tanks with third magnetic barrier and fourth magnetic barrier, is provided with the ferrite in first magnetic barrier and third magnetic barrier, is provided with the tombarthite permanent magnet in the second magnetic barrier. The multilayer magnetic barrier comprises a plurality of accommodating grooves, permanent magnets are arranged in the accommodating grooves, the power density and the efficiency of the motor are improved by the magnetism gathering effect of the permanent magnets, and the high weak magnetic constant power range of the motor is greatly improved. In the invention, the ferrite is arranged in the accommodating groove of the first magnetic barrier and the accommodating groove of the third magnetic barrier, the rare earth permanent magnet is arranged in the accommodating groove of the second magnetic barrier, the ferrite and the rare earth permanent magnet are mixed for use, and the rare earth permanent magnet is arranged between the two layers of ferrites, thus not only greatly improving the low-temperature demagnetization resistance of the ferrite, but also improving the magnetic density distribution and reducing the torque pulsation.
As a preferred scheme, the accommodating groove of the first magnetic barrier is arc-shaped, the arc-shaped inner arc faces the direction outside the rotor core, and the accommodating grooves of the second magnetic barrier and the third magnetic barrier are rectangular. First magnetic barrier storage tank is arc in this scheme, has increased the volume of storage tank to the anti demagnetization ability of ferrite low temperature has been improved. The accommodating grooves of the second magnetic barriers and the third magnetic barriers are rectangular, the second magnetic barriers are arranged around the first magnetic barriers, the third magnetic barriers are arranged around the second magnetic barriers, and the accommodating grooves of the second magnetic barriers and the third magnetic barriers are located on two sides of the d axis and symmetrically distributed relative to the d axis.
As a preferable scheme, the accommodating grooves at the two ends of the second magnetic barrier and the third magnetic barrier are parallel to the q-axis. The distribution of the magnetic force lines of the q axis of the motor can be optimized, and the ripple torque is reduced.
As a preferable scheme, the rotor core further comprises an outer layer magnetic barrier, and the outer layer magnetic barrier is arranged outside the first magnetic barrier. The scheme also adds one layer of magnetic barrier, so that four layers of magnetic barriers can be formed. The outer magnetic barrier is arranged on the outermost side, no partition is arranged in the outer magnetic barrier, and a permanent magnet is arranged in the outer magnetic barrier.
As a preferable scheme, the outer layer magnetic barrier is arc-shaped, and ferrite is arranged in the outer layer magnetic barrier. The outer magnetic barrier of the scheme is arc-shaped, so that the holding volume is increased, and the low-temperature demagnetization resistance of the ferrite is improved.
Preferably, the middle partition parts of the first magnetic barrier, the second magnetic barrier and the third magnetic barrier are located on the d axis, and the side partition parts of the second magnetic barrier and the third magnetic barrier are symmetrically distributed on two sides of the d axis.
As a preferable scheme, an angle between two accommodating grooves of the second magnetic barrier located in the middle is 130-160 °, and an angle between two accommodating grooves of the third magnetic barrier located in the middle is 145-165 °.
Preferably, the width of the middle partition part is 1mm-4mm, and the width of the side partition parts is 1mm-4 mm.
As a preferable scheme, a magnetic conduction channel is formed between the magnetic barriers, the width of the magnetic conduction channel on the rotor core is gradually increased from the outside to the inside, and the width between the second magnetic barrier and the third magnetic barrier is 3mm-10 mm.
As a preferable scheme, the width of the accommodating groove of the first magnetic barrier is 3mm-10mm, and the width of the accommodating groove of the third magnetic barrier of the second magnetic barrier is 3mm-8 mm.
Therefore, the invention has the advantages that:
1. the multilayer magnetic barrier comprises a plurality of accommodating grooves, permanent magnets are arranged in the accommodating grooves, the power density and the efficiency of the motor are improved by the magnetism gathering effect of the permanent magnets, and the high weak magnetic constant power range of the motor is greatly improved;
2. the ferrite and the rare earth permanent magnet are mixed for use, and the rare earth permanent magnet is arranged between the two layers of ferrites, so that the low-temperature demagnetization resistance of the ferrites can be greatly improved, the magnetic density distribution is improved, and the torque pulsation is reduced;
3. the outer magnetic barrier and the first magnetic barrier are arc-shaped, so that the volume of the accommodating groove is increased, and the low-temperature demagnetization resistance of the ferrite is improved.
Drawings
FIG. 1 is a schematic view of a magnetic barrier group according to the present invention;
fig. 2 is a map of the efficiency of a motor employing the structure of the present invention.
The magnetic-conductive rotor comprises a rotor core 1, a first magnetic barrier 3, a second magnetic barrier 4, a third magnetic barrier 5, an outer-layer magnetic barrier 6, a middle partition part 7, a side partition part 8, a ferrite 9, a rare earth permanent magnet 10, an accommodating groove 11 and a magnetic-conductive channel.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
the permanent magnet auxiliary synchronous reluctance motor for the electric automobile comprises a rotor core 1 as shown in figure 1, wherein a plurality of magnetic barrier groups are axially arranged on the rotor core, each magnetic barrier group comprises an outer magnetic barrier 5, a first magnetic barrier 2, a second magnetic barrier 3 and a third magnetic barrier 4 which are arranged from outside to inside at intervals along a d axis,
the outer layer magnetic barrier is not provided with a partition part. The first magnetic barrier is provided with a middle partition part 6 which divides the first magnetic barrier into two accommodating grooves 10. The second magnetic barrier and the third magnetic barrier are respectively provided with a middle partition part 6 and side partition parts 7 positioned on two sides, and the third magnetic barrier and the fourth magnetic barrier are divided into four accommodating grooves 10. The middle partition parts of the first magnetic barrier, the second magnetic barrier and the third magnetic barrier are positioned on the d axis, and the side partition parts of the second magnetic barrier and the third magnetic barrier are symmetrically distributed on two sides of the d axis. The width of the middle partition part 6 is 2mm, and the width of the side partition part 7 is 2 mm.
The outer-layer magnetic barrier is arc-shaped, the accommodating groove of the first magnetic barrier is arc-shaped, the accommodating grooves of the second magnetic barrier and the third magnetic barrier are rectangular, the arc-shaped inner arc edges of the outer-layer magnetic barrier and the first magnetic barrier face towards the outside, the second magnetic barrier accommodating grooves are arranged around the first magnetic barrier, the third magnetic barrier accommodating grooves are arranged around the second magnetic barrier, and the accommodating grooves of the second magnetic barrier and the third magnetic barrier are positioned on two sides of a d axis and are symmetrically distributed relative to the d axis. The containing grooves of the second magnetic barrier 3 and the third magnetic barrier 4 at the two ends are parallel to the q axis, the angle between the two containing grooves of the second magnetic barrier in the middle is 145 degrees, and the angle between the two containing grooves of the third magnetic barrier in the middle is 155 degrees. The width of the accommodating groove of the outer-layer magnetic barrier is 5mm, the width of the accommodating groove of the first magnetic barrier is 6mm, and the widths of the accommodating grooves of the second magnetic barrier and the third magnetic barrier are 5 mm.
And magnetic conduction channels 11 are formed among the magnetic barriers, and the width of the magnetic conduction channels gradually increases from the outside to the inside on the rotor core. The width between the second magnetic barrier 3 and the third magnetic barrier 4 is 6mm, and the width between the first magnetic barrier and the second magnetic barrier is 4.5 mm.
As shown in fig. 2, for an efficiency map of the improved permanent magnet assisted synchronous reluctance motor, it can be seen that the high efficiency region is located further downward at 8000rpm of rotation speed, that is, the improved permanent magnet assisted synchronous reluctance motor has higher efficiency under a high-speed working condition, and a short plate that the whole vehicle has too fast descent during high-speed operation of the electric vehicle can be better improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms rotor core, first magnetic barrier, second magnetic barrier, third magnetic barrier, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. The utility model provides a synchronous reluctance motor is assisted to permanent magnetism for electric automobile, includes rotor core, is provided with a plurality of magnetic barriers group, its characterized in that along the axial on the rotor core: the magnetic barrier group at least comprises a first magnetic barrier (2), a second magnetic barrier (3) and a third magnetic barrier (4) which are arranged from outside to inside at intervals along a d axis, wherein a middle partition part (6) is arranged on the first magnetic barrier to partition the first magnetic barrier into two accommodating grooves (10), the second magnetic barrier and the third magnetic barrier are respectively provided with the middle partition part (6) and side partition parts (7) positioned at two sides to partition the third magnetic barrier and the fourth magnetic barrier into four accommodating grooves (10), ferrites (8) are arranged in the first magnetic barrier and the third magnetic barrier, and rare earth permanent magnets (9) are arranged in the second magnetic barrier; the accommodating groove (10) of the first magnetic barrier (2) is arc-shaped, the inner arc of the arc is towards the direction of the outer part of the rotor core, and the accommodating grooves (10) of the second magnetic barrier and the third magnetic barrier are rectangular; the rotor core further comprises an outer-layer magnetic barrier (5), the outer-layer magnetic barrier is arranged on the outer side of the first magnetic barrier (2), the outer-layer magnetic barrier (5) is arc-shaped, and ferrite is arranged in the outer-layer magnetic barrier.
2. The permanent magnet-assisted synchronous reluctance motor for the electric vehicle as claimed in claim 1, wherein the second magnetic barrier (3) and the third magnetic barrier (4) are located in the containing grooves (10) at the two ends and are parallel to the q-axis.
3. The permanent magnet auxiliary synchronous reluctance motor for the electric automobile as claimed in claim 1, wherein the width of the receiving slot of the outer layer magnetic barrier is 3mm-8 mm.
4. The permanent magnet auxiliary synchronous reluctance motor for the electric automobile according to claim 1, wherein the middle partition (6) of the first magnetic barrier (2), the second magnetic barrier (3) and the third magnetic barrier (4) is located on the d-axis, and the side partitions (7) of the second magnetic barrier and the third magnetic barrier are symmetrically distributed on two sides of the d-axis.
5. The permanent magnet assisted synchronous reluctance motor for the electric vehicle as claimed in claim 1, wherein the angle between the two middle accommodating slots of said second magnetic barrier (3) is 130 ° -160 °, and the angle between the two middle accommodating slots of said third magnetic barrier (4) is 145 ° -165 °.
6. The permanent magnet auxiliary synchronous reluctance motor for the electric automobile according to claim 1, wherein the width of the middle partition (6) is 1mm-4mm, and the width of the side partition (7) is 1mm-4 mm.
7. The permanent magnet-assisted synchronous reluctance motor for the electric vehicle as claimed in claim 1, wherein a magnetic conduction channel (11) is formed between the magnetic barriers, the width of the magnetic conduction channel gradually increases from the outside to the inside on the rotor core, and the width between the second magnetic barrier (3) and the third magnetic barrier (4) is 3mm-10 mm.
8. The permanent magnet auxiliary synchronous reluctance motor for the electric automobile according to claim 1, wherein the width of the accommodating groove of the first magnetic barrier (2) is 3mm-10mm, and the width of the accommodating groove of the second magnetic barrier (3) and the third magnetic barrier (4) is 3mm-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885766.8A CN112152356B (en) | 2020-08-28 | 2020-08-28 | Permanent magnet auxiliary synchronous reluctance motor for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885766.8A CN112152356B (en) | 2020-08-28 | 2020-08-28 | Permanent magnet auxiliary synchronous reluctance motor for electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112152356A CN112152356A (en) | 2020-12-29 |
| CN112152356B true CN112152356B (en) | 2022-07-08 |
Family
ID=73889972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010885766.8A Active CN112152356B (en) | 2020-08-28 | 2020-08-28 | Permanent magnet auxiliary synchronous reluctance motor for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112152356B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116742856B (en) * | 2023-07-03 | 2024-05-31 | 山东理工大学 | Magnetic field distribution adjustable motor with arc-shaped magnetic barriers |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015098326A1 (en) * | 2013-12-27 | 2015-07-02 | 日立オートモティブシステムズ株式会社 | Rotor, and permanent-magnet-type rotational electric machine, electric drive system, and electric vehicle which are provided with said rotor |
| CN110247526A (en) * | 2019-04-25 | 2019-09-17 | 上海电机系统节能工程技术研究中心有限公司 | A kind of low harmony wave synchronous magnetic resistance motor rotor Core Design method |
| CN110971037A (en) * | 2019-12-06 | 2020-04-07 | 江苏大学 | Rotor structure of permanent magnet auxiliary type bearingless synchronous reluctance motor |
| CN213243663U (en) * | 2020-08-28 | 2021-05-18 | 浙江零跑科技有限公司 | Permanent magnet auxiliary synchronous reluctance motor for electric automobile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203504323U (en) * | 2013-09-25 | 2014-03-26 | 广东美芝制冷设备有限公司 | Rotor of motor |
| CN107852046B (en) * | 2015-07-17 | 2019-10-08 | 西门子公司 | Reluctance rotor with additional own magnetized portion |
| EP3128647B1 (en) * | 2015-08-05 | 2018-06-06 | ABB Schweiz AG | Rotor for rotating electric machine |
| EP3804091B1 (en) * | 2018-06-07 | 2023-11-29 | Mavel edt S.p.A. | Rotor for an electrical machine and electrical machine comprising said rotor |
| CN208479309U (en) * | 2018-08-10 | 2019-02-05 | 中车株洲电力机车研究所有限公司 | A kind of permanent magnetism assist in synchronization magnetic resistance motor rotor |
| JP7007651B2 (en) * | 2018-11-15 | 2022-01-24 | ダイキン工業株式会社 | Rotor and rotating electric machine equipped with it |
-
2020
- 2020-08-28 CN CN202010885766.8A patent/CN112152356B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015098326A1 (en) * | 2013-12-27 | 2015-07-02 | 日立オートモティブシステムズ株式会社 | Rotor, and permanent-magnet-type rotational electric machine, electric drive system, and electric vehicle which are provided with said rotor |
| CN110247526A (en) * | 2019-04-25 | 2019-09-17 | 上海电机系统节能工程技术研究中心有限公司 | A kind of low harmony wave synchronous magnetic resistance motor rotor Core Design method |
| CN110971037A (en) * | 2019-12-06 | 2020-04-07 | 江苏大学 | Rotor structure of permanent magnet auxiliary type bearingless synchronous reluctance motor |
| CN213243663U (en) * | 2020-08-28 | 2021-05-18 | 浙江零跑科技有限公司 | Permanent magnet auxiliary synchronous reluctance motor for electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112152356A (en) | 2020-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8138651B2 (en) | Methods and apparatus for a permanent magnet machine with an added air barrier | |
| US10211690B2 (en) | IPM machine with specialized rotor for automotive electric vehicles | |
| CN202721584U (en) | Permanent-magnet synchronous motor and compressor, hybrid electrical vehicle (HEV), electric vehicle (EV) and fuel cell vehicle embarked with the same | |
| US20100141076A1 (en) | Methods and apparatus for a permanent magnet machine with segmented ferrite magnets | |
| CN104221261A (en) | Permanent magnet motor | |
| CN111725916B (en) | Rotor structure and permanent magnet auxiliary synchronous reluctance motor | |
| CN101820238A (en) | Be used to have the method and apparatus of the magneto of asymmetric rotor magnet | |
| CN101741194A (en) | Internal permanent magnet synchronous motor for hybrid electric vehicle | |
| CN107276350B (en) | Double-stator hybrid excitation motor | |
| CN112152356B (en) | Permanent magnet auxiliary synchronous reluctance motor for electric automobile | |
| CN213243663U (en) | Permanent magnet auxiliary synchronous reluctance motor for electric automobile | |
| CN116191725A (en) | Permanent magnet auxiliary synchronous reluctance motor and compressor | |
| CN116191726A (en) | Motor rotor with magnetic barrier, motor and compressor | |
| CN110943558B (en) | Motor rotor, reluctance motor and electric automobile | |
| WO2024078131A1 (en) | Rotor having magnetic barriers, motor and compressor | |
| CN218386999U (en) | Permanent magnet auxiliary synchronous reluctance motor and compressor | |
| CN218633493U (en) | Motor rotor, motor and compressor | |
| CN218387000U (en) | Motor rotor with magnetic barrier, motor and compressor | |
| CN105634166A (en) | Synchronous s reluctance motor rotor | |
| CN115378155A (en) | Hybrid surface-embedded spoke type permanent magnet asymmetric magnetic axis offset motor | |
| CN110518725B (en) | Mixed permanent magnet type permanent magnet synchronous reluctance motor rotor structure for electric automobile | |
| CN114123580A (en) | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor | |
| CN105703503A (en) | Permanent magnet auxiliary synchronous reluctance motor rotor structure | |
| CN112671133A (en) | Rotor structure and motor | |
| CN221783931U (en) | Synchronous reluctance motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Zero run Technology Co.,Ltd. Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |