CN105811616A - Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same - Google Patents
Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same Download PDFInfo
- Publication number
- CN105811616A CN105811616A CN201610169748.3A CN201610169748A CN105811616A CN 105811616 A CN105811616 A CN 105811616A CN 201610169748 A CN201610169748 A CN 201610169748A CN 105811616 A CN105811616 A CN 105811616A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- magnetic steel
- tangential
- permanent magnet
- magnet
- 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.)
- Pending
Links
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
- H02K1/2706—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]
-
- 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
- H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses tangential sectional type magnetic steel. The tangential sectional type magnetic steel comprises a square-block-shaped magnetic steel body embedded in a magnetic steel groove of a rotor iron core, wherein the magnetic steel body adopts a tangential sectional type structure and comprises a left section magnetic steel body, a middle section magnetic steel body and a right section magnetic steel body; the left section magnetic steel body and the right section magnetic steel body are made from permanent magnet materials with relatively high intrinsic coercivity and relatively low residual magnetic flux density; and the middle section magnetic steel body is made from the permanent magnet material with relatively low intrinsic coercivity and relatively high residual magnetic flux density. The invention also discloses a permanent magnet synchronous motor rotor equipped with the magnetic steel. The tangential sectional type magnetic steel and the permanent magnet synchronous motor rotor equipped with the same have the beneficial effects as follows: due to the sectional type optimized combination of the permanent magnet materials with relatively high intrinsic coercivity and relatively low residual magnetic flux density and the permanent magnet material with relatively low intrinsic coercivity and relatively high residual magnetic flux density, the demagnetization resistance of the motor can be ensured; and meanwhile, the usage amount of neodymium iron boron with relatively high cost and high intrinsic coercivity can be the minimum, so that the cost of the motor can be lowered consequently.
Description
Technical field
The present invention relates to the drive motor technical field of new-energy automobile, particularly relate to a kind of tangential stagewise magnet steel and there is the permanent-magnetic synchronous motor rotor of this magnet steel.
Background technology
Compared with conventional motors, the operating mode of new-energy automobile drive motor is complicated, special requirement can start continually/stop, acceleration/deceleration, work under bad environment, requiring to adapt to higher operating temperature and stronger vibration environment, high reliability and safety, electric machine controller adopts space vector PWM to control, particularly in motor operating point and work-mode switching process, there is bigger transient state demagnetization current in the high voltage input terminal of motor.
Due to permagnetic synchronous motor have that volume is little, lightweight, torque density power and the advantage such as density is big, efficiency is high, governor control characteristics is good, existing new-energy automobile drive motor is generally adopted permagnetic synchronous motor.Permagnetic synchronous motor for drive motor is generally adopted Interior permanent magnet formula rotor, referring to Fig. 1, what provide in figure is existing permanent-magnetic synchronous motor rotor, including rotor core 10 and magnet steel 20, rotor core 10 is formed by silicon steel plate stacking, rotor core 10 is cut by line or punch process is formed with magnet steel groove 11, magnet steel 20 is inlaid in the magnet steel groove 11 on rotor core 10, the magnet steel 20 packet shape in " one " font, employing parallel mode magnetizes, arrow in magnet steel 20 represents magnetizing direction, and arrow length represents the size of residual flux density.Or, referring to Fig. 2, what provide in figure is existing another form of permanent-magnetic synchronous motor rotor, including rotor core 10 ' and magnet steel 20a ', 20b ', rotor core 10 ' is formed by silicon steel plate stacking, rotor core 10 ' is cut by line or punch process is formed with the magnet steel groove 11a ' and 11b ' in V-shape, magnet steel 20a ', 20b ' is inlaid in the magnet steel groove 11a ' and 11b ' on rotor core 10 respectively, make magnet steel 20a ', 20b ' is distributed in V-shape, employing parallel mode magnetizes, magnet steel 20a ', arrow in 20b ' represents magnetizing direction, arrow length represents the size of residual flux density.
The quadrature axis inductance of the permagnetic synchronous motor of this employing Interior permanent magnet formula rotor is bigger than d-axis inductance, has very big salient pole ratio, it is simple to weak-magnetic speed-regulating controls, and can effectively utilize reluctance torque, improves the torque density of motor.But owing to magnet steel 20 or 20a ', 20b ' are embedded in rotor core 10 or 10 ', magnet steel 20 or 20a ', 20b ' heating heat radiation difficulty, the operating temperature of magnet steel 20 or 20a ', 20b ' is higher, stronger reverse demagnetized field is there is in motor, it is easy to cause the irreversible demagnetization of magnet steel under weak-magnetic speed-regulating, mode of operation switching and abnormal operating state.In order to improve the high-temperature stability of permagnetic synchronous motor and anti-demagnetization performance, magnet steel 20 or 20a ', 20b ' on the rotor of permagnetic synchronous motor are generally adopted the magnet steel that HCJ is higher, and the price of this magnet steel generally can account for about the 40% of the motor cost of raw material, and along with HCJ increases (anti-demagnetization performance is more strong), the amplification of magnet steel cost is bigger.
New-energy automobile drive motor requires that noise is low, and this just requires that the sine degree of air-gap field that the magnet steel of permagnetic synchronous motor provides to be got well.Generally adopting short distance winding, skewed stator slot, the measure such as skewed-rotor improves the sine degree of air-gap field, but short distance winding can cause existing in same groove out of phase winding, winding and inserting difficulty, and needs the insulation in groove；Skewed stator slot and skewed-rotor, it is desirable to iron core rotates a certain angle, complex process, cost are high.
For this, applicant carried out useful exploration and trial, have found result of the above problems, technical scheme described below produces under this background.
Summary of the invention
One of the technical problem to be solved: a kind of tangential stagewise magnet steel is provided for the deficiencies in the prior art, when the anti-demagnetization capability ensureing motor is enough, the NdFeB material that use cost is higher as few as possible HCJ is big, the output moment of torsion of motor can be effectively improved simultaneously, the sine degree of the air-gap field of its offer is provided, reduces the purpose of torque ripple.
The two of the technical problem to be solved: a kind of permanent-magnetic synchronous motor rotor with above-mentioned tangential stagewise magnet steel is provided.
A kind of tangential stagewise magnet steel as first aspect present invention, including the magnet steel body being inlaid in the magnet steel groove of rotor core and in packet shape, it is characterized in that, described magnet steel body is tangential segmentation structure, it is made up of left section of magnet steel, stage casing magnet steel and right section of magnet steel, described left and right section of magnet steel adopts the permanent magnet material that HCJ is relatively large and residual magnetic flux density is relatively low to make, and described stage casing magnet steel adopts the permanent magnet material that HCJ is relatively small and residual magnetic flux density is of a relatively high to make.
In a preferred embodiment of the invention, described left and right section of magnet steel is for adopting same permanent magnet material to make.
In a preferred embodiment of the invention, described permanent magnet material is Nd-Fe-B permanent magnet, and magnetizing direction is identical.
In a preferred embodiment of the invention, described left and right section of magnet steel equivalently-sized, and 1st/1st to two/4th of the length that both length is described stage casing magnet steel.
In a preferred embodiment of the invention, described left section of magnet steel, stage casing magnet steel and right section of magnet steel are yi word pattern distribution.
In a preferred embodiment of the invention, described stage casing magnet steel is made up of left section of magnet steel and right section of magnet steel, described left section of magnet steel is connected with left section of magnet steel, and described right section of magnet steel is connected with right section of magnet steel so that described magnet steel body is V-shape distribution.
A kind of permanent-magnetic synchronous motor rotor as second aspect present invention, including rotor core and magnet steel, described rotor core is formed by silicon steel plate stacking, described rotor core is processed to form magnet steel groove, described magnet steel is inlaid in the magnet steel groove on described rotor core, it is characterized in that, described magnet steel is above-mentioned tangential stagewise magnet steel.
Owing to have employed technical scheme as above, the beneficial effects of the present invention is:
1) by by big for HCJ and permanent magnet material that residual magnetic flux density is little with HCJ is little and permanent magnet material subsection mapping that residual magnetic flux density is big, can when ensureing the anti-demagnetization capability of motor, the neodymium iron boron that HCJ that minimal use cost is higher is big, thus reducing the cost of motor；
2) residual magnetic flux density of stage casing magnet steel is higher compared with left and right two sections of magnet steels, it is possible to be effectively improved the output moment of torsion of motor, can improve the sine degree of the air-gap field that rotor magnetic steel provides, thus reducing torque ripple simultaneously；
3) present configuration is simple, and handling ease, cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing permanent-magnetic synchronous motor rotor, and its magnet steel is " one " type structure.
Fig. 2 is the structural representation of existing permanent-magnetic synchronous motor rotor, and its magnet steel is " V " type structure.
Fig. 3 is the structural representation of the permanent-magnetic synchronous motor rotor of the present invention, and its magnet steel is " one " type structure.
Fig. 4 is the structural representation of the permanent-magnetic synchronous motor rotor of the present invention, and its magnet steel is " V " type structure.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, the present invention is expanded on further.
Embodiment 1
Referring to Fig. 3, what provide in figure is a kind of permanent-magnetic synchronous motor rotor, including rotor core 100 and magnet steel 200, rotor core 100 is formed by silicon steel plate stacking, being cut by line on rotor core 100 or punch process forms magnet steel groove 110, magnet steel 200 is inlaid in the magnet steel groove 110 on rotor core 100.
Magnet steel 200 is in " one " font packet shape, it adopts tangential segmentation structure, it is made up of left section of magnet steel 210, stage casing magnet steel 220 and right section of magnet steel 230, wherein, left and right section of magnet steel 210,230 adopts the permanent magnet material that HCJ is relatively large and residual magnetic flux density is relatively low to make, and stage casing magnet steel 220 adopts the permanent magnet material that HCJ is relatively small and residual magnetic flux density is of a relatively high to make.Wherein, the permanent magnet material that left section of magnet steel 210 and right section of magnet steel 230 adopt is same middle permanent magnet material.The permanent magnet material that left section of magnet steel 210, stage casing magnet steel 220 and right section of magnet steel 230 adopt is Nd-Fe-B permanent magnet, and employing parallel magnetization, magnetizing direction is identical, arrow in left section of magnet steel 210, stage casing magnet steel 220 and right section of magnet steel 230 represents magnetizing direction, and arrow length represents the size of residual magnetic flux density.Left and right section of magnet steel 210,230 equivalently-sized, and 1st/1st to two/4th of the length that length is stage casing magnet steel 220 of left and right section of magnet steel 210,230.
The present invention by by big for HCJ and permanent magnet material that residual magnetic flux density is little with HCJ is little and permanent magnet material subsection mapping that residual magnetic flux density is big, can when ensureing the anti-demagnetization capability of motor, the neodymium iron boron that HCJ that minimal use cost is higher is big, thus reducing the cost of motor.Additionally, the residual magnetic flux density of stage casing magnet steel is higher compared with left and right two sections of magnet steels, it is possible to be effectively improved the output moment of torsion of motor, the sine degree of the air-gap field that rotor magnetic steel provides can be improved, thus reducing torque ripple simultaneously.
Embodiment 2
The present embodiment is roughly the same with embodiment 1, it is distinctive in that: referring to Fig. 4, rotor core 100 ' is cut by line or punch process is formed with magnet steel groove 110a ' and 110b ', magnet steel groove 110a ' and 110b ' arranges in V-shape, stage casing magnet steel 220 ' is made up of left section of magnet steel 220a ' and right section of magnet steel 220b ', left section of magnet steel 220a ' is connected with left section of magnet steel 210 ' and is inlaid in the magnet steel groove 110a ' on rotor core 100 ', right section of magnet steel 220b ' is connected with right section of magnet steel 230 ' and is inlaid in the magnet steel groove 110b ' on rotor core 100 ', making magnet steel body is V-shape distribution.Arrow in left section of magnet steel 210 ', left section of magnet steel 220a ', right section of magnet steel 220b ' and right section of magnet steel 230 ' represents magnetizing direction, and arrow length represents the size of residual flux density.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (7)
1. a tangential stagewise magnet steel, including the magnet steel body being inlaid in the magnet steel groove of rotor core and in packet shape, it is characterized in that, described magnet steel body is tangential segmentation structure, it is made up of left section of magnet steel, stage casing magnet steel and right section of magnet steel, described left and right section of magnet steel adopts the permanent magnet material that HCJ is relatively large and residual magnetic flux density is relatively low to make, and described stage casing magnet steel adopts the permanent magnet material that HCJ is relatively small and residual magnetic flux density is of a relatively high to make.
2. tangential stagewise magnet steel as claimed in claim 1, it is characterised in that described left and right section of magnet steel is made for adopting same permanent magnet material.
3. tangential stagewise magnet steel as claimed in claim 1, it is characterised in that described permanent magnet material is Nd-Fe-B permanent magnet, and magnetizing direction is identical.
4. stagewise magnet steel as claimed in claim 1 tangential, it is characterised in that described left and right section of magnet steel equivalently-sized, and 1st/1st to two/4th of the length that both length is described stage casing magnet steel.
5. the tangential stagewise magnet steel as according to any one of Claims 1-4, it is characterised in that described left section of magnet steel, stage casing magnet steel and right section of magnet steel are yi word pattern distribution.
6. the tangential stagewise magnet steel as according to any one of Claims 1-4, it is characterized in that, described stage casing magnet steel is made up of left section of magnet steel and right section of magnet steel, described left section of magnet steel is connected with left section of magnet steel, described right section of magnet steel is connected with right section of magnet steel so that described magnet steel body is V-shape distribution.
7. a permanent-magnetic synchronous motor rotor, including rotor core and magnet steel, described rotor core is formed by silicon steel plate stacking, described rotor core is processed to form magnet steel groove, described magnet steel is inlaid in the magnet steel groove on described rotor core, it is characterized in that, described magnet steel is the tangential stagewise magnet steel as according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169748.3A CN105811616A (en) | 2016-03-23 | 2016-03-23 | Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610169748.3A CN105811616A (en) | 2016-03-23 | 2016-03-23 | Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105811616A true CN105811616A (en) | 2016-07-27 |
Family
ID=56453711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610169748.3A Pending CN105811616A (en) | 2016-03-23 | 2016-03-23 | Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105811616A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696015A (en) * | 2017-03-30 | 2018-10-23 | Tdk株式会社 | Motor |
| CN108880040A (en) * | 2018-08-30 | 2018-11-23 | 包头瑞祥稀土科技有限公司 | A kind of anti-demagnetization magnet steel of rare-earth permanent-magnet electric machine high temperature resistant |
| CN110112851A (en) * | 2019-06-18 | 2019-08-09 | 无锡博华机电有限公司 | A kind of rotor reducing the fluctuation of synchronous motor main shaft torque |
| CN113410933A (en) * | 2021-06-28 | 2021-09-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Design method of motor rotor, motor rotor and double-winding motor |
| CN113644768A (en) * | 2021-08-13 | 2021-11-12 | 北京中科三环高技术股份有限公司 | Motor rotor and IPM motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516915A (en) * | 2002-03-20 | 2004-07-28 | ͬ�Ϳ�ҵ��ʽ���� | Permanent magnet type motor and compressor using it |
| JP2009038930A (en) * | 2007-08-03 | 2009-02-19 | Daikin Ind Ltd | Rotor and embedded magnet type motor |
| CN101485064A (en) * | 2006-06-12 | 2009-07-15 | 雷米技术有限公司 | Magnet for a dynamoelectric machine, dynamoelectric machine and method |
| CN102064622A (en) * | 2009-10-01 | 2011-05-18 | 信越化学工业株式会社 | Rotor for permanent magnet rotary machine |
-
2016
- 2016-03-23 CN CN201610169748.3A patent/CN105811616A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516915A (en) * | 2002-03-20 | 2004-07-28 | ͬ�Ϳ�ҵ��ʽ���� | Permanent magnet type motor and compressor using it |
| CN101485064A (en) * | 2006-06-12 | 2009-07-15 | 雷米技术有限公司 | Magnet for a dynamoelectric machine, dynamoelectric machine and method |
| JP2009038930A (en) * | 2007-08-03 | 2009-02-19 | Daikin Ind Ltd | Rotor and embedded magnet type motor |
| CN102064622A (en) * | 2009-10-01 | 2011-05-18 | 信越化学工业株式会社 | Rotor for permanent magnet rotary machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696015A (en) * | 2017-03-30 | 2018-10-23 | Tdk株式会社 | Motor |
| CN108880040A (en) * | 2018-08-30 | 2018-11-23 | 包头瑞祥稀土科技有限公司 | A kind of anti-demagnetization magnet steel of rare-earth permanent-magnet electric machine high temperature resistant |
| CN110112851A (en) * | 2019-06-18 | 2019-08-09 | 无锡博华机电有限公司 | A kind of rotor reducing the fluctuation of synchronous motor main shaft torque |
| CN113410933A (en) * | 2021-06-28 | 2021-09-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Design method of motor rotor, motor rotor and double-winding motor |
| CN113644768A (en) * | 2021-08-13 | 2021-11-12 | 北京中科三环高技术股份有限公司 | Motor rotor and IPM motor |
| CN113644768B (en) * | 2021-08-13 | 2022-12-06 | 北京中科三环高技术股份有限公司 | Motor rotor and IPM motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109412293B (en) | Series-parallel magnetic circuit memory motor | |
| CN105811616A (en) | Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same | |
| CN108599418A (en) | A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor | |
| CN203896066U (en) | Mixed magnetic steel rotor and permanent-magnet synchronous motor therewith | |
| CN105322744B (en) | Split type combined permanent-magnet brushless motor for electric vehicle | |
| CN101651371B (en) | Stator surface mounted doubly salient permanent magnet motor with auxiliary salient pole | |
| CN101325349A (en) | Permanent magnetism type motor of wide speed-adjusting magnetic flux memory type stator | |
| CN112072811B (en) | Embedded-permanent magnet reluctance type mixed magnetic pole type memory motor | |
| CN101562384B (en) | Magnetic-field-enhanced permanent-magnetic switching flux linkage motor with high fault tolerance | |
| CN104467333B (en) | Rotor excitation multi-phase reluctance motor and control method thereof | |
| CN104883019A (en) | Stator permanent magnet mixed excitation vernier motor | |
| CN105914984A (en) | Various magnetic flux-strong magnetic type permanent magnet synchronous motor | |
| CN107425629B (en) | Permanent magnet motor rotor | |
| WO2024078113A1 (en) | Permanent magnet-assisted synchronous reluctance motor and compressor | |
| CN114123581A (en) | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor | |
| WO2024078131A1 (en) | Rotor having magnetic barriers, motor and compressor | |
| CN104753212A (en) | Hybrid magnetic steel rotor and permanent magnet synchronous motor provided with rotor | |
| CN110829652A (en) | Series-parallel magnetic circuit mixed magnetic pole type memory motor | |
| KR100876173B1 (en) | Rotor manufacturing method for reluctance motor using magnetic anisotropy of oriented electrical steel sheet | |
| CN107086686B (en) | A kind of built-in permanent magnet motor rotor | |
| CN114123580B (en) | Self-starting permanent magnet auxiliary synchronous reluctance motor rotor and motor | |
| Chen et al. | Finite element analysis of interior composite-rotor controllable flux permanent magnet synchronous machine | |
| CN205725213U (en) | The low fluctuation slotted eye convolution p-m rotor of motor in electric automobile | |
| CN202424450U (en) | Hybrid excitation magnetic pole structure | |
| Zheng et al. | Design and comparison of interior permanent-magnet machines for hybrid electric vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160727 |