CN101420139A - Rotary motor and rotor thereof - Google Patents
Rotary motor and rotor thereof Download PDFInfo
- Publication number
- CN101420139A CN101420139A CNA2007101816407A CN200710181640A CN101420139A CN 101420139 A CN101420139 A CN 101420139A CN A2007101816407 A CNA2007101816407 A CN A2007101816407A CN 200710181640 A CN200710181640 A CN 200710181640A CN 101420139 A CN101420139 A CN 101420139A
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- Prior art keywords
- magnetic conduction
- conduction portion
- rotor
- long magnets
- electric rotating
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Abstract
The invention relates to a rotating motor. The rotating motor comprises a rotor and a stator, wherein, the rotor comprises a body, a plurality of long magnets and a plurality of non-magnetizers; the body is provided with a wall surface; a plurality of long magnets are contained inside the body; a plurality of non-magnetizers are arranged between a plurality of long magnets and the wall surface, and are close to the end part of the long magnets; the stator is arranged outside the rotor, and comprises a plurality of magnetizers. By the structure, the non-magnetizers can reduce vibration of the rotating motor generated during running.
Description
Technical field
The present invention relates to a kind of electric rotating machine and rotor thereof, especially a kind of electric rotating machine and rotor thereof that reduces vibration.
Background technology
Has the electric rotating machine of rotor and stator as motor, generator etc., the vibration of one of them major issue when reducing running.The electric rotating machine of prior art is example with the motor, and its shape that generally is designed to the inboard of the outer wall of rotor and stator is all just round, makes to form the fixed interval (FI) between rotor and the stator.The air gap flux density curve that this kind motor is obtained in the running slightly is a square wave, and the sine wave of nonideality represents that promptly this kind motor can produce the oscillation phenomenon of certain degree in the running.
Please refer to Fig. 1, it is the rotor of prior art and the schematic diagram of stator.In order to make the air gap flux density curve that slightly is square wave can level off to sine wave, therefore the wall 922 with rotor 90 forms non-positive toroidal.Wall 922 is a plurality of evaginations, and the quantity of the evagination of wall 922 cooperates the quantity of long magnets 94, makes to form uneven gap between wall 922 and stator 80 inboards.Wherein, 94 central pairing gap A are less near long magnets, and pairing gap B is bigger near long magnets 94 two ends.Because the gap between rotor 90 and the stator 80 is the non-territory, sector of leading, promptly bigger gap B produces the bigger non-territory, sector of leading at the two ends of long magnets 94, by this non-territory, sector of leading, former crest and the trough that slightly is square wave can be extended respectively up and down, further make waveform approach sine wave.Yet though this mode can reduce partial vibration really, the effect of its improvement is limited, and when the rotor evagination partly increases its evagination angle, is not to be directly proportional with the effect that reduces vibration.
Therefore, be necessary to provide a kind of electric rotating machine and rotor thereof, to improve the existing in prior technology problem.
Summary of the invention
The object of the present invention is to provide a kind of electric rotating machine, the vibration that is produced during its decreasing running.
Another object of the present invention is to provide a kind of rotor, it has a plurality of non-magnetic conduction portion, and described a plurality of non-magnetic conduction portion can reduce the vibration that electric rotating machine is produced in the running effectively.
For reaching above-mentioned purpose, the invention provides a kind of electric rotating machine, it comprises rotor and stator.Rotor comprises main body, a plurality of long magnets and a plurality of non-magnetic conduction portion.Wherein, main body has wall; A plurality of long magnets are placed in body interior; A plurality of non-magnetic conduction portion is positioned between a plurality of long magnets and the wall, and is adjacent to the end of long magnets.Stator is positioned at the rotor outside, and stator comprises a plurality of magnetic conduction portion.By above-mentioned structure, non-magnetic conduction portion can reduce the vibration that electric rotating machine is produced in the running.
For reaching another above-mentioned purpose, the invention provides a kind of rotor, it comprises main body, a plurality of long magnets and a plurality of non-magnetic conduction portion.Wherein, main body has wall; A plurality of long magnets are placed in body interior; A plurality of non-magnetic conduction portion is positioned between a plurality of long magnets and the wall, and is adjacent to the end of long magnets.Wherein each non-magnetic conduction portion comprises first end and second end, and first end is adjacent to each end of each long magnets, and non-magnetic conduction portion is tapered by first end to the second end.Comprise extrados and intrados between first end of non-magnetic conduction portion and second end, wherein the radian of extrados is identical with the radian of the wall of rotor.
Beneficial effect of the present invention is: electric rotating machine provided by the present invention and rotor thereof, utilize the non-magnetic conduction portion be positioned at internal rotor, and can reduce the vibration that electric rotating machine is produced in the running effectively, its effect is better than various prior aries.In addition, the length by adjusting non-magnetic conduction portion and the angle of bend of intrados, can further make the more approaching sine wave of air gap flux density waveform, solved in the prior art when the rotor evagination partly increases its evagination angle, be not the problem that is directly proportional with the effect that reduces vibration, and reach the purpose that reduces vibration.
Description of drawings
Fig. 1 is the rotor of prior art and the schematic diagram of stator.
Fig. 2 is the schematic diagram of electric rotating machine of the present invention.
Fig. 3 is the schematic diagram of rotor first embodiment of the present invention.
Fig. 4 is the schematic diagram of rotor second embodiment of the present invention.
Fig. 5 is the schematic diagram of rotor the 3rd embodiment of the present invention.
Wherein, description of reference numerals is as follows:
1: electric rotating machine 10,10a, 10b, 90: rotor
12,92: main body 122,922: wall
14,94: long magnets 16,16a, 16b: non-magnetic conduction portion
162,162a: extrados 164,164a: intrados
166,166a: first end 168,168a: second end
20,80: stator 22: magnetic conduction portion
24: notch A, B: gap
Embodiment
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularlyly go out specific embodiments of the invention, and conjunction with figs., do following detailed description.
Please refer to Fig. 2, it is the schematic diagram of electric rotating machine of the present invention.Electric rotating machine of the present invention 1 is for having the rotational structure of the rotor 10 that matches and stator 20, and for instance, electric rotating machine 1 can be motor or generator etc.Electric rotating machine 1 comprises rotor 10 and stator 20, and stator 20 is positioned at rotor 10 outsides, and promptly rotor 10 is coated on stator 20 central authorities.Rotor 10 inside comprise a plurality of long magnets 14, and stator 20 comprises a plurality of magnetic conduction portion 22, and wherein magnetic conduction portion 22 promptly often is called the position of " pole shoe ".The magnetic field that electric rotating machine 1 is produced after energising produces the phenomenon of inhaling mutually or repelling each other with the magnetic field of the long magnets 14 of rotor 10, makes rotor 10 rotate relatively with respect to stator 20.
The quantity of long magnets 14 is the number of poles of rotor core, and the quantity of magnetic conduction portion 22 is the groove number of stator core.In present embodiment, the quantity of a plurality of long magnets 14 is 6, and the quantity of a plurality of magnetic conduction portion 22 is 36, i.e. 6 utmost points, 36 grooves.It is noted that the long magnets 14 of electric rotating machine 1 of the present invention is not limited to this with the quantity of magnetic conduction portion 22.Below just be described further at rotor 10 structures of electric rotating machine 1 of the present invention.
Then please refer to Fig. 3, it is the schematic diagram of rotor first embodiment of the present invention.Rotor 10 of the present invention comprises main body 12, a plurality of long magnets 14 and a plurality of non-magnetic conduction portion 16.Wherein, main body 12 has wall 122, and it is the slightly cylindrical cambered surface of main body 12 outer most edge, has the gap between magnetic conduction portion 22 inboards of the wall 122 of rotor 10 and stator 20.
A plurality of long magnets 14 are placed in main body 12 inside and approach wall 122 positions, and each long magnets 14 is arranged around rotor 10 centers and an approximate ring-type, and each long magnets 14 regards to wall 122 (as shown in Figure 2).In present embodiment, long magnets 14 is a permanent magnet, and it can provide fixing pole orientation.
A plurality of non-magnetic conduction portion 16 and is adjacent to the end of long magnets 14 between a plurality of long magnets 14 and wall 122, i.e. the non-magnetic conduction in the two ends of each long magnets 14 all adjacent a portion 16.In present embodiment, rotor 10 comprises 6 long magnets 14, and the quantity of therefore non-magnetic conduction portion 16 is 12 (please in the lump with reference to figure 2).
When electric rotating machine moves, when presenting sine wave, the air gap flux density curve that it produced is perfect condition, the expression vibration that electric rotating machine produced is for minimum.Yet, in the prior art, the shape of rotor outer wall and stator inboard is all under the just round design, the air gap flux density curve slightly presents square wave, therefore how the air gap flux density curve is adjusted into by square wave and levels off to sinusoidal wave kenel, be an important problem, a plurality of non-magnetic conduction portion 16 in the rotor of the present invention 10 can reach this purpose.In present embodiment, each non-magnetic conduction portion 16 is a slender type hollow cell body.It is noted that, the purpose of non-magnetic conduction portion 16 be the both sides near long magnets 14 provide can't magnetic conduction the zone, so it is not limited to the kenel of hollow, non-magnetic conduction portion 16 also can fill in other material as non-magnetic conductions such as plastics.
Each non-magnetic conduction portion 16 comprises that first end 166 and second end, 168, the first ends 166 are adjacent to each end of each long magnets 14.For the waveform with the both sides of the crest of progressive adjustments air gap flux density waveform and trough, non-magnetic conduction portion 16 is tapered by first end, 166 to second ends 168.Via the effect of non-magnetic conduction portion 16, make adjusted air gap flux density waveform present and approach the sinusoidal wave crooked wave character that is had, thereby produce the effect that reduces vibration.
In order to promote the effect of the adjustment air gap flux density curve that non-magnetic conduction portion 16 produced, each non-magnetic conduction portion 16 also comprises extrados 162 and intrados 164 between first end 166 and second end 168.The radian of extrados 162 is similar in fact to the radian of the wall 122 of rotor 10, makes non-magnetic conduction portion 16 outer rotors reach the saturated uniform state of magnetic flux, flows into toward first end 166 of non-magnetic conduction portion 16 to avoid the part magnetic flux.Therefore, can guarantee that with the approximate in fact extrados 162 of the radian of the wall 122 of rotor 10 non-magnetic conduction portion 16 adjusts the air gap flux density curve effectively.
Among the embodiment as shown in Figure 3, the rough width with a magnetic conduction portion 22 of length of each non-magnetic conduction portion 16 equates, promptly from first end, 166 to second ends 168 of non-magnetic conduction portion 16 across a width that is equivalent to magnetic conduction portion 22 ends of stator 20.In addition, the intrados 164 formed central angles of each non-magnetic conduction portion 16 can be 30 degree.
Then please refer to Fig. 4, it is the schematic diagram of rotor second embodiment of the present invention.Each non-magnetic conduction 16a of portion comprises extrados 162a and intrados 164a.Different with first embodiment is, the formed central angle of intrados 164a of the non-magnetic conduction 16a of portion of each of present embodiment is less, and it is 25 degree.
Then please refer to Fig. 5, it is the schematic diagram of rotor the 3rd embodiment of the present invention.Each non-magnetic conduction 16b of portion comprises the first end 166a and the second end 168a.Different with first embodiment is, the length of the non-magnetic conduction 16b of portion of each of present embodiment is longer, the width that its length is essentially 1.5 magnetic conduction portions 22 adds the width of a notch 24 (between adjacent magnetic conduction portion 22), and the promptly non-magnetic conduction 16b of portion extends to the second end 168a successively across the width of a magnetic conduction portion 22, a notch 24 and half magnetic conduction portion 22 from the first end 166a.
It is noted that, the length of the non-magnetic conduction portion of rotor of the present invention, and the formed central angle of intrados of non-magnetic conduction portion is not limited to above-mentionedly, also can select other specification for use, being applicable to the collocation of different rotor number of poles and number of stator slots, or be applicable to the electric rotating machines of different sizes.Length with non-magnetic conduction portion is example, also can be essentially the width of half magnetic conduction portion end, or the width that can be a magnetic conduction portion end adds the width of half notch; The formed central angle of intrados with non-magnetic conduction portion is an example, and this angle also can be 13 degree.Other it is noted that, the profile of non-magnetic conduction portion also is not limited to above-mentioned.
Comprehensively above-mentioned, electric rotating machine of the present invention and rotor thereof, its utilization is positioned at the non-magnetic conduction portion of internal rotor, can reduce the vibration that electric rotating machine is produced in the running effectively, and its effect is better than various prior aries.In addition, the length by adjusting non-magnetic conduction portion and the angle of bend of intrados can further make the more approaching sine wave of air gap flux density waveform, to reach the purpose that reduces vibration.
In sum, no matter the present invention all shows it totally different in the feature of known technology with regard to purpose, means and effect.Must notice that the foregoing description only is illustrative principle of the present invention and effect thereof, but not is used to limit the scope of the invention.The scope of the present invention should be as described in the scope in following claims.
Claims (10)
1. rotor, it comprises:
One main body, this main body has a wall;
A plurality of long magnets, described a plurality of long magnets are placed in this body interior; And
A plurality of non-magnetic conduction portion, described a plurality of non-magnetic conduction portion is positioned between described a plurality of long magnets and this wall, and is adjacent to the end of long magnets.
2. rotor as claimed in claim 1, wherein each non-magnetic conduction portion is a cell body, and this cell body comprises one first end and one second end, and this first end is adjacent to each end of each long magnets, and this non-magnetic conduction portion is tapered by this first end to this second end.
3. rotor as claimed in claim 2 wherein comprises between this first end of this non-magnetic conduction portion and this second end:
One extrados, the radian of this extrados is identical in fact with the radian of this wall;
One intrados, this intrados has radian.
4. rotor as claimed in claim 2, wherein this cell body is the hollow cell body or fills in plastics.
5. rotor as claimed in claim 3, wherein the formed central angle of this intrados of each non-magnetic conduction portion between 25 degree between 35 degree.
6. electric rotating machine, it comprises:
One rotor, this rotor comprises:
One main body, this main body has a wall;
A plurality of long magnets, described a plurality of long magnets are placed in this body interior; And
A plurality of non-magnetic conduction portion, described a plurality of non-magnetic conduction portion is positioned between described a plurality of long magnets and this wall, and is adjacent to the end of long magnets;
One stator is positioned at this rotor outside, and this stator comprises a plurality of magnetic conduction portion;
Thereby this non-magnetic conduction portion can reduce the vibration that this electric rotating machine is produced when running.
7. electric rotating machine as claimed in claim 6, wherein each non-magnetic conduction portion is a cell body, and this cell body comprises one first end and one second end, and this first end is adjacent to each end of each long magnets, and this non-magnetic conduction portion is tapered by this first end to this second end.
8. electric rotating machine as claimed in claim 7 wherein comprises between this first end of this non-magnetic conduction portion and this second end:
One extrados, the radian of this extrados is identical in fact with the radian of this wall;
One intrados, this intrados has radian.
9. electric rotating machine as claimed in claim 8, wherein between 35 degree, and this cell body is the hollow cell body or fills in plastics the formed central angle of this intrados of each non-magnetic conduction portion between 25 degree.
10. electric rotating machine as claimed in claim 8, the length of wherein single non-magnetic conduction portion is identical in fact with the width of single magnetic conduction portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101816407A CN101420139A (en) | 2007-10-22 | 2007-10-22 | Rotary motor and rotor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101816407A CN101420139A (en) | 2007-10-22 | 2007-10-22 | Rotary motor and rotor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101420139A true CN101420139A (en) | 2009-04-29 |
Family
ID=40630800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101816407A Pending CN101420139A (en) | 2007-10-22 | 2007-10-22 | Rotary motor and rotor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101420139A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113489200A (en) * | 2021-08-20 | 2021-10-08 | 浙江浙能技术研究院有限公司 | Novel asymmetric alternating pole rotor |
-
2007
- 2007-10-22 CN CNA2007101816407A patent/CN101420139A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113489200A (en) * | 2021-08-20 | 2021-10-08 | 浙江浙能技术研究院有限公司 | Novel asymmetric alternating pole rotor |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090429 |