CN104659940A - Rotor of rotating motor - Google Patents
Rotor of rotating motor Download PDFInfo
- Publication number
- CN104659940A CN104659940A CN201510065848.7A CN201510065848A CN104659940A CN 104659940 A CN104659940 A CN 104659940A CN 201510065848 A CN201510065848 A CN 201510065848A CN 104659940 A CN104659940 A CN 104659940A
- Authority
- CN
- China
- Prior art keywords
- magnetic steel
- slotted eye
- ferrite magnetic
- rotor
- rotary motor
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a rotor of a rotating motor. The rotor comprises a rotating shaft and a rotor core, wherein a plurality of pieces of neodymium iron boron magnetic steel are uniformly embedded in the rotor core in tangential directions; a piece of ferrite magnetic steel is embedded between two adjacent pieces of neodymium iron boron magnetic steel in a radial direction; two adjacent pieces of neodymium iron boron magnetic steel are arranged in an N-N opposite manner; two adjacent pieces of ferrite magnetic steel are arranged in an N-S separating manner. The rotor has the benefits that the ferrite magnetic steel and reluctance torque are sufficiently utilized, so that the consumption of the neodymium iron boron magnetic steel can be greatly reduced under the premise that motor output torque is guaranteed. Therefore, the cost of a permanent magnet motor can be reduced.
Description
Technical field
The present invention relates to a kind of rotary motor rotor, particularly relate to a kind of parallel rotary motor rotor utilizing ferrite magnetic steel and Nd-Fe-B magnet steel.
Background technology
Magneto receives increasing concern due to its advantage such as high power density, high efficiency.But the price of present high performance permanent magnetic materials neodymium iron boron rises steadily, many research institutions and electric machine manufacturer is made to start technical field research direction transfer at least being used neodymium iron boron or do not use neodymium iron boron.
The direction of magnetization of built-in type permanent-magnet according to permanent magnetic steel and the correlation of rotor direction of rotation, its rotor magnetic circuit structural be divided into radial, tangential, hybrid three kinds.Radial magnetic leakage factor is little, and rotating shaft does not need to take every magnetic measure, and rotor punching mechanical strength is high; Tangential magnetic leakage factor is comparatively large, and need to take accordingly every magnetic measure, the manufacturing process of motor and manufacturing cost comparatively radial are high, and advantage is that the magnetic flux under a pole span is provided by adjacent two magnetic pole parallels, can obtain larger every pole magnetic flux; Hybrid combination has concentrated the advantage of radial and tangential rotor structure, but structure and manufacturing process more complicated, manufacturing cost is higher.
Magneto, except having the permanent-magnet torque of permanent magnet generation, also has reluctance torque.Make full use of its reluctance torque, the use reducing Nd-Fe-B magnet steel is had great importance.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of rotary motor rotor of novel structure, take full advantage of reluctance torque and the low cost ferrite permanent-magnet magnet steel of motor, while maintenance magneto has higher efficiency, higher power density, greatly reduce the use amount of Nd-Fe-B magnet steel of motor internal high-performance, high cost, and then effectively reduce the cost of motor.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of rotary motor rotor, comprises rotating shaft and rotor core, some Nd-Fe-B magnet steels of tangential on board equably in described rotor core, and between adjacent two Nd-Fe-B magnet steels, radial direction is built-in with ferrite magnetic steel; The mode that adjacent Nd-Fe-B magnet steel adopts N, N positioned opposite, adjacent ferrite magnetic steel adopts the spaced apart mode of N, S.
Particularly, be formed in foregoing rotor iron core and be uniformly distributed and spaced some first kind slotted eyes and Equations of The Second Kind slotted eye, described first kind slotted eye comprises linear pattern kerve and side channel, described Equations of The Second Kind slotted eye is linear pattern, Nd-Fe-B magnet steel is placed in the side channel of first kind slotted eye, in the kerve that ferrite magnetic steel is placed in first kind slotted eye and Equations of The Second Kind slotted eye.
Preferably, aforementioned ferrite magnetic steel is diametrical magnetization.
Preferably, aforementioned Nd-Fe-B magnet steel is circumferential magnetization.
Preferably, this rotor is 8 electrode structures.
As a kind of specific embodiment, aforementioned ferrite magnetic steel is single layer structure.
As another kind of specific embodiment, the kerve of slotted eye and Equations of The Second Kind slotted eye is other is also arranged with the 3rd class slotted eye in parallel in first, be built-in with ferrite magnetic steel in described 3rd class slotted eye, described ferrite magnetic steel is double-decker.
Usefulness of the present invention is: rotor of the present invention takes full advantage of ferrite magnetic steel and reluctance torque, while guarantee motor output torque, significantly decreases the use amount of Nd-Fe-B magnet steel, reduces the cost of magneto.
Accompanying drawing explanation
Fig. 1 is the rotor cutaway view of embodiments of the invention 1;
Fig. 2 is magnetic circuit schematic diagram embodiment illustrated in fig. 1;
Fig. 3 is the electronics rotor cutaway view of embodiments of the invention 2;
Fig. 4 is magnetic circuit schematic diagram embodiment illustrated in fig. 3.
The implication of Reference numeral in figure: 1: rotor core, 2: rotating shaft, 3-1: first kind slotted eye, 4-1,4-2,6-1,6-2: ferrite magnetic steel, 5: Nd-Fe-B magnet steel, 7-1: Equations of The Second Kind slotted eye, 3-2,7-2: the 3rd class slotted eye.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
embodiment 1
See Fig. 1, rotary motor rotor of the present invention comprises rotating shaft 2 and rotor core 1, some Nd-Fe-B magnet steels 5 of tangential on board equably in rotor core 1, and between adjacent two Nd-Fe-B magnet steels 5, radial direction is built-in with ferrite magnetic steel 4-1,6-1; The mode that adjacent Nd-Fe-B magnet steel 5 adopts N, N positioned opposite, adjacent ferrite magnetic steel 4-1,6-1 adopt the spaced apart mode of N, S.
In order to reasonably accommodating each magnet steel, be formed in rotor core 1 and be uniformly distributed and spaced some first kind slotted eye 3-1 and Equations of The Second Kind slotted eye 7-1.Wherein, first kind slotted eye 3-1 comprises linear pattern kerve and side channel, and Equations of The Second Kind slotted eye 7-1 is linear pattern, and Nd-Fe-B magnet steel 5 is placed in the side channel of first kind slotted eye 3-1, in the kerve that ferrite magnetic steel 4-1,6-1 are placed in first kind slotted eye 3-1 and Equations of The Second Kind slotted eye 7-1.Ferrite magnetic steel 4-1,6-1 are diametrical magnetization, and Nd-Fe-B magnet steel 5 is circumferential magnetization.
Fig. 2 is the magnetic circuit schematic diagram of rotor embodiment illustrated in fig. 1, and rotor is 8 electrode structures, and Nd-Fe-B magnet steel 5 in adjacent side channel is circumferential magnetization, and adopt the mode that N, N are positioned opposite, magnetic flux is supplied separately by monolithic magnet steel; In the present embodiment, radial ferrite magnetic steel 4-1,6-1 adopt single layer structure, and adjacent pole is the configuration of N, S interval, and its magnetic flux is connected by adjacent two blocks of magnet steel and provided, and concrete magnetic flux trend as shown in Figure 2.
embodiment 2
See Fig. 3, the rotor structure of the present embodiment is roughly the same with embodiment 1, difference part is mainly: the kerve of slotted eye and Equations of The Second Kind slotted eye 7-1 is other is also arranged with the 3rd class slotted eye 3-2,7-2 in parallel in first, ferrite magnetic steel 4-2,6-2 is built-in with in 3rd class slotted eye 3-2,7-2, so, ferrite magnetic steel 4-1,4-2,6-1,6-2 is double-decker.As shown in Figure 4, tangential Nd-Fe-B magnet steel 5 monolithic provides magnetic flux separately, and radial ferrite magnetic steel 4-1,4-2,6-1,6-2 are together in series and provide magnetic flux together, and concrete magnetic flux trend as shown in Figure 4.
To sum up, in view of tangential Nd-Fe-B permanent magnetic magnet steel and the parallel connection of radial ferrite permanent-magnet magnet steel provide magnetic flux, both magnetic potentials keep being consistent.In actual application, the residual magnetic flux density of Nd-Fe-B magnet steel 5
br is generally at about 1.2T, and coercive force is about 907kA/m, and the residual magnetic flux density of ferrite magnetic steel
br is at about 0.38T, coercive force is 300kA/m, then every extremely lower radial ferrite magnetic steel gross thickness is about 3 times of tangential Nd-Fe-B magnet steel 5 thickness, the output of the reluctance torque substantially increased, while guarantee has magneto superior performance, significantly decrease the use amount of Nd-Fe-B magnet steel 5, reduce the cost of motor, there is good economic benefit.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (7)
1. a rotary motor rotor, is characterized in that, comprises rotating shaft and rotor core, some Nd-Fe-B magnet steels of tangential on board equably in described rotor core, and between adjacent two Nd-Fe-B magnet steels, radial direction is built-in with ferrite magnetic steel; The mode that adjacent Nd-Fe-B magnet steel adopts N, N positioned opposite, adjacent ferrite magnetic steel adopts the spaced apart mode of N, S.
2. a kind of rotary motor rotor according to claim 1, it is characterized in that, be formed in described rotor core and be uniformly distributed and spaced some first kind slotted eyes and Equations of The Second Kind slotted eye, described first kind slotted eye comprises linear pattern kerve and side channel, described Equations of The Second Kind slotted eye is linear pattern, Nd-Fe-B magnet steel is placed in the side channel of first kind slotted eye, in the kerve that ferrite magnetic steel is placed in first kind slotted eye and Equations of The Second Kind slotted eye.
3. described a kind of rotary motor rotor according to claim 1, is characterized in that, described ferrite magnetic steel is diametrical magnetization.
4. described a kind of rotary motor rotor according to claim 1, is characterized in that, described Nd-Fe-B magnet steel is circumferential magnetization.
5. a kind of rotary motor rotor according to claim 1, is characterized in that, this rotor is 8 electrode structures.
6. a kind of rotary motor rotor according to any one of claim 1-5, is characterized in that, described ferrite magnetic steel is single layer structure.
7. a kind of rotary motor rotor according to any one of claim 1-5, it is characterized in that, the kerve of slotted eye and Equations of The Second Kind slotted eye is other is also arranged with the 3rd class slotted eye in parallel in first, be built-in with ferrite magnetic steel in described 3rd class slotted eye, described ferrite magnetic steel is double-decker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065848.7A CN104659940A (en) | 2015-02-09 | 2015-02-09 | Rotor of rotating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065848.7A CN104659940A (en) | 2015-02-09 | 2015-02-09 | Rotor of rotating motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104659940A true CN104659940A (en) | 2015-05-27 |
Family
ID=53250746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510065848.7A Pending CN104659940A (en) | 2015-02-09 | 2015-02-09 | Rotor of rotating motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104659940A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356704A (en) * | 2015-10-22 | 2016-02-24 | 江苏大学 | U-shaped fault-tolerant permanent magnet motor made of hybrid magnetic material |
| CN105846570A (en) * | 2016-05-12 | 2016-08-10 | 张学义 | Electric automobile embedded tangential and tile permanent magnet steel wheel hub driving motor |
| CN105915006A (en) * | 2016-05-12 | 2016-08-31 | 张学义 | Electric automobile invisible magnetic pole and tile permanent magnet steel wheel hub driving 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 |
| WO2020057081A1 (en) * | 2018-09-21 | 2020-03-26 | 东南大学 | Double-layer permanent magnet compound magnetic circuit memory motor |
| CN114400855A (en) * | 2022-01-24 | 2022-04-26 | 沈阳工程学院 | Stator and rotor dual-modular permanent magnet synchronous motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240802Y (en) * | 1995-06-20 | 1996-11-20 | 大安电机厂 | Rare-earth permanent magnet high-effect synchronous motor |
| CN2602538Y (en) * | 2003-03-14 | 2004-02-04 | 上海大学 | Magnetic convergence type permanent-magnet generator with each phase of magnetic-path decoupling |
| JP2006280195A (en) * | 2005-03-01 | 2006-10-12 | Toshiba Corp | Permanent magnet type rotary electric machine |
| CN104011974A (en) * | 2011-12-26 | 2014-08-27 | 三菱电机株式会社 | Rotor |
| CN204046297U (en) * | 2014-09-10 | 2014-12-24 | 北京明正维元电机技术有限公司 | The U-shaped rotor of a kind of permagnetic synchronous motor |
| CN204465184U (en) * | 2015-02-09 | 2015-07-08 | 苏州力久新能源科技有限公司 | A kind of rotary motor rotor |
-
2015
- 2015-02-09 CN CN201510065848.7A patent/CN104659940A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240802Y (en) * | 1995-06-20 | 1996-11-20 | 大安电机厂 | Rare-earth permanent magnet high-effect synchronous motor |
| CN2602538Y (en) * | 2003-03-14 | 2004-02-04 | 上海大学 | Magnetic convergence type permanent-magnet generator with each phase of magnetic-path decoupling |
| JP2006280195A (en) * | 2005-03-01 | 2006-10-12 | Toshiba Corp | Permanent magnet type rotary electric machine |
| CN104011974A (en) * | 2011-12-26 | 2014-08-27 | 三菱电机株式会社 | Rotor |
| CN204046297U (en) * | 2014-09-10 | 2014-12-24 | 北京明正维元电机技术有限公司 | The U-shaped rotor of a kind of permagnetic synchronous motor |
| CN204465184U (en) * | 2015-02-09 | 2015-07-08 | 苏州力久新能源科技有限公司 | A kind of rotary motor rotor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356704A (en) * | 2015-10-22 | 2016-02-24 | 江苏大学 | U-shaped fault-tolerant permanent magnet motor made of hybrid magnetic material |
| CN105846570A (en) * | 2016-05-12 | 2016-08-10 | 张学义 | Electric automobile embedded tangential and tile permanent magnet steel wheel hub driving motor |
| CN105915006A (en) * | 2016-05-12 | 2016-08-31 | 张学义 | Electric automobile invisible magnetic pole and tile permanent magnet steel wheel hub driving motor |
| WO2020057081A1 (en) * | 2018-09-21 | 2020-03-26 | 东南大学 | Double-layer permanent magnet compound magnetic circuit memory 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 |
| CN114400855A (en) * | 2022-01-24 | 2022-04-26 | 沈阳工程学院 | Stator and rotor dual-modular permanent magnet synchronous motor |
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| PB01 | Publication | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150928 Address after: 200126, No. 251, Yaohua Road, Pudong New Area Free Trade Zone, Shanghai Applicant after: Macao tecka new energy technology (Shanghai) Co., Ltd. Address before: 215211 Jiangsu city of Suzhou province Wujiang FENHU Economic Development Zone, Road No. 35. Applicant before: Suzhou Pixcir Microelectronics Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |
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| RJ01 | Rejection of invention patent application after publication |