CN107124051A - A kind of permanent-magnetic synchronous motor rotor structure - Google Patents
A kind of permanent-magnetic synchronous motor rotor structure Download PDFInfo
- Publication number
- CN107124051A CN107124051A CN201710428513.6A CN201710428513A CN107124051A CN 107124051 A CN107124051 A CN 107124051A CN 201710428513 A CN201710428513 A CN 201710428513A CN 107124051 A CN107124051 A CN 107124051A
- Authority
- CN
- China
- Prior art keywords
- auxiliary
- ferrimagnet
- permanent
- neodymium iron
- iron boron
- 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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
- H02K1/243—Rotor cores with salient poles ; Variable reluctance rotors of the claw-pole type
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention discloses a kind of permanent-magnetic synchronous motor rotor structure, belongs to motor body design field.The rotor structure includes two Lundell iron cores, respectively upper core and lower core, neodymium iron boron magnetic body, the cylindrical ferrite magnet of axial magnetized and auxiliary ferrimagnet；Forming position deviation between upper core and lower core, it is interlaced to assemble, centre is embedded with neodymium iron boron magnetic body and auxiliary ferrimagnet, the cylindrical ferrite magnet of axial magnetized is placed in the middle of upper core and lower core, auxiliary ferrimagnet is distributed with the cylindrical ferrite magnet surrounding of axial magnetized, be embedded with neodymium iron boron magnetic body between adjacent auxiliary ferrimagnet, described neodymium iron boron magnetic body axial magnetized cylindrical ferrite magnet surrounding alternatively up and down.The present invention can reduce permanent magnet consumption, reduce cost, improve motor performance.
Description
Technical field
The present invention relates to a kind of permanent-magnetic synchronous motor rotor structure, belong to motor body design field.
Background technology
Motor is essential dynamical element in industrialization society, and permagnetic synchronous motor technology maturation, reliability is high, is
The environmentally friendly low-carbon motor of one high efficiency high-energy-density.It is simple in construction without winding on rotor, it is reliable, it is adapted to transport at a high speed
Row and severe working environment.Therefore various applications, such as Aero-Space, auto industry and wind-power electricity generation etc. have been obtained.In recent years,
Because spinner velocity adjustable range is wide, torque density is high and simple in construction etc. so that the advantage of permagnetic synchronous motor is increasingly dashed forward
Go out.Traditional magneto, due to the effect of permanent magnet, electric efficiency and power density are all of a relatively high, but permanent magnet needs
Permanent magnet material is more, and rare earth permanent magnet resource is nervous, and its cost limits its further development.
The content of the invention
The present invention proposes a kind of permanent-magnetic synchronous motor rotor structure, can reduce permanent magnet consumption, reduce cost, improves electricity
Machine performance.
The present invention adopts the following technical scheme that to solve its technical problem：
A kind of permanent-magnetic synchronous motor rotor structure, it is characterised in that：Including two Lundell iron cores, respectively upper core and lower iron
Core, neodymium iron boron magnetic body, the cylindrical ferrite magnet of axial magnetized and auxiliary ferrimagnet；Shape between upper core and lower core
Interlaced to assemble into position deviation, centre is embedded with neodymium iron boron magnetic body and auxiliary ferrimagnet, the cylinder of axial magnetized
Shape ferrimagnet is placed in the middle of upper core and lower core, and auxiliary iron is distributed with the cylindrical ferrite magnet surrounding of axial magnetized
Neodymium iron boron magnetic body is embedded between ferrite magnet, adjacent auxiliary ferrimagnet, described neodymium iron boron magnetic body is in axial magnetized
Cylindrical ferrite magnet surrounding is alternatively up and down.
The neodymium iron boron magnetic body and auxiliary ferrimagnet two magnetic flux paths of formation, two paths are parallel to each other to be formed altogether
Same magnetic circuit.
The angle of release a of the rotor magnetic pole of the neodymium iron boron magnetic body and the angle of release a ' of rotor with salient pole ratio are set to 1.18.
The auxiliary ferrimagnet is embedded between upper core and lower core salient pole, forms auxiliary magnetic circuit.
The cylindrical ferrite magnet of described axial magnetized is located between upper core and lower core, with auxiliary ferrite magnetic
Body is connected, and axial magnetized.
Beneficial effects of the present invention are as follows：
1st, it is simple in construction, reliable without winding on rotor with rotor with salient pole tooth slot structure.
2nd, because using Lundell core structure up and down, permanent-magnet material used can be greatly reduced, so can be with maximum limit
Reduce waste of material and manufacturing cost in degree ground.
3rd, neodymium iron boron magnetic body and auxiliary ferrimagnet two flux circuits of formation, reduce leakage field, improve motor and exert oneself.
4th, the angle of release a ' of the angle of release a of rotor magnetic pole and rotor with salient pole ratio is set to shape between 1.18, iron core upper and lower sides
Into position deviation, torque pulsation reduces.
Brief description of the drawings
Fig. 1 is novel permanent magnetic synchronous motor rotor structure expanded view of the invention, wherein：1st, upper core；2nd, lower core；3、
Neodymium iron boron magnetic body；4th, the cylindrical ferrite magnet of axial magnetized；5th, ferrimagnet is aided in.
Fig. 2 is the magnetic circuit schematic diagram of the novel permanent magnetic synchronous motor rotor of the present invention.
Fig. 3（a）For the permanent-magnetic synchronous motor rotor angle of release sectional view of the present invention, Fig. 3（b）For the permanent magnet synchronous electric of the present invention
The axial schematic diagram of machine.
Embodiment
The invention is described in further details below in conjunction with the accompanying drawings.
The example of illustrated embodiment is 8 pole permanent-magnet synchronous machine rotors.
Such as Fig. 1, permanent-magnetic synchronous motor rotor structure of the invention, including：Two Lundell iron cores, respectively upper core 1
With lower core 2, neodymium iron boron magnetic body 3, the cylindrical ferrite magnet 4 of axial magnetized and auxiliary ferrimagnet 5.The He of upper core 1
Lower core 2 is Lundell, respectively the groove of four tooth four, mutually adds misplaced put.The cylindrical ferrite magnet 4 of one axial magnetized is put
In the middle of upper core 1 and lower core 2, while thering is 8 neodymium iron boron magnetic bodies 3 and auxiliary ferrimagnet 5 to be placed in its surrounding, neodymium iron boron
Magnet interlocks about 3, and auxiliary ferrimagnet 5 is spatially positioned between upper core 1 and the salient pole of lower core 2.There are 4 N poles and 4
Individual S poles, are alternateed.
Shown in Fig. 2 is the magnetic circuit schematic diagram of permanent-magnetic synchronous motor rotor, it can be seen that permanent-magnetic synchronous motor rotor is run
When there are two flux circuits, neodymium iron boron magnetic body 3 and auxiliary ferrimagnet 5 form two magnetic flux paths with rotor with salient pole respectively
Formation common flux path parallel to each other, utilizes material to a greater extent while permanent-magnet material consumption reduces, reduce leakage field lifting electricity
Machine is exerted oneself.
Shown in Fig. 3 is the permanent-magnetic synchronous motor rotor angle of release sectional view and axial schematic diagram of invention, it can be seen that neodymium iron
The angle of release a of the rotor magnetic pole of boron magnet and the angle of release a ' of rotor with salient pole ratio are set between 1.18, iron core upper and lower sides can be with
Forming position deviation, reduces the torque pulsation of permagnetic synchronous motor from structure.
Claims (5)
1. a kind of permanent-magnetic synchronous motor rotor structure, it is characterised in that：Including two Lundell iron cores, respectively upper core (1)
And lower core（2）, neodymium iron boron magnetic body（3）, axial magnetized cylindrical ferrite magnet（4）With auxiliary ferrimagnet（5）；On
Iron core (1) and lower core（2）Between forming position deviation, interlaced to assemble, centre is embedded with neodymium iron boron magnetic body（3）With it is auxiliary
Help ferrimagnet（5）, the cylindrical ferrite magnet of axial magnetized（4）It is placed in upper core (1) and lower core（2）Centre, axle
To magnetized cylindrical ferrite magnet（4）Auxiliary ferrimagnet is distributed with surrounding（5）, adjacent auxiliary ferrimagnet
（5）Between be embedded with neodymium iron boron magnetic body（3）, described neodymium iron boron magnetic body（3）In the cylindrical ferrite magnet of axial magnetized（4）Four
Week is alternatively up and down.
2. a kind of permanent-magnetic synchronous motor rotor structure according to claim 1, it is characterised in that neodymium iron boron magnetic body（3）With
Aid in ferrimagnet（5）Form two magnetic flux paths, two paths formation common flux path parallel to each other.
3. a kind of permanent-magnetic synchronous motor rotor structure according to claim 1, it is characterised in that neodymium iron boron magnetic body（3）'s
The angle of release a of rotor magnetic pole and the angle of release a ' of rotor with salient pole ratio are set to 1.18.
4. a kind of permanent-magnetic synchronous motor rotor structure according to claim 1, it is characterised in that auxiliary ferrimagnet
（5）It is embedded in upper core (1) and lower core（2）Between salient pole, auxiliary magnetic circuit is formed.
5. a kind of permanent-magnetic synchronous motor rotor structure according to claim 1, it is characterised in that described axial magnetized
Cylindrical ferrite magnet（4）Positioned at upper core (1) and lower core（2）Between, with auxiliary ferrite magnetic（5）Body is connected,
And axial magnetized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428513.6A CN107124051B (en) | 2017-06-08 | 2017-06-08 | A kind of permanent-magnetic synchronous motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428513.6A CN107124051B (en) | 2017-06-08 | 2017-06-08 | A kind of permanent-magnetic synchronous motor rotor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107124051A true CN107124051A (en) | 2017-09-01 |
| CN107124051B CN107124051B (en) | 2019-08-13 |
Family
ID=59730343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710428513.6A Expired - Fee Related CN107124051B (en) | 2017-06-08 | 2017-06-08 | A kind of permanent-magnetic synchronous motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107124051B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880038A (en) * | 2018-07-26 | 2018-11-23 | 南京航空航天大学 | Mix pole rotor and motor |
| CN109301956A (en) * | 2018-10-16 | 2019-02-01 | 国网江苏省电力有限公司海门市供电分公司 | A kind of novel permanent magnetic synchronous motor rotor structure |
| CN109639002A (en) * | 2019-01-18 | 2019-04-16 | 南京航空航天大学 | A kind of rotor structure of permanent magnet synchronous motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232205A (en) * | 2008-01-25 | 2008-07-30 | 东南大学 | Variable flux permanent magnet synchronous motor |
| CN103066712A (en) * | 2012-12-29 | 2013-04-24 | 周智庆 | Novel magnetic pole structure |
| CN203632387U (en) * | 2013-10-30 | 2014-06-04 | 台州百格拉机电有限公司 | Motor rotor |
| CN205429907U (en) * | 2015-11-16 | 2016-08-03 | 西安航天动力测控技术研究所 | High power density rotor structure |
| CN106300729A (en) * | 2015-05-29 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet machine rotor and permagnetic synchronous motor |
-
2017
- 2017-06-08 CN CN201710428513.6A patent/CN107124051B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232205A (en) * | 2008-01-25 | 2008-07-30 | 东南大学 | Variable flux permanent magnet synchronous motor |
| CN103066712A (en) * | 2012-12-29 | 2013-04-24 | 周智庆 | Novel magnetic pole structure |
| CN203632387U (en) * | 2013-10-30 | 2014-06-04 | 台州百格拉机电有限公司 | Motor rotor |
| CN106300729A (en) * | 2015-05-29 | 2017-01-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Permanent magnet machine rotor and permagnetic synchronous motor |
| CN205429907U (en) * | 2015-11-16 | 2016-08-03 | 西安航天动力测控技术研究所 | High power density rotor structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880038A (en) * | 2018-07-26 | 2018-11-23 | 南京航空航天大学 | Mix pole rotor and motor |
| CN108880038B (en) * | 2018-07-26 | 2020-11-06 | 南京航空航天大学 | Mixed-pole rotor and motor |
| CN109301956A (en) * | 2018-10-16 | 2019-02-01 | 国网江苏省电力有限公司海门市供电分公司 | A kind of novel permanent magnetic synchronous motor rotor structure |
| CN109639002A (en) * | 2019-01-18 | 2019-04-16 | 南京航空航天大学 | A kind of rotor structure of permanent magnet synchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107124051B (en) | 2019-08-13 |
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Granted publication date: 20190813 Termination date: 20210608 |