CN101635479A - Permanent-magnetic rotor for alternating current motor - Google Patents
Permanent-magnetic rotor for alternating current motor Download PDFInfo
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- CN101635479A CN101635479A CN200810132288A CN200810132288A CN101635479A CN 101635479 A CN101635479 A CN 101635479A CN 200810132288 A CN200810132288 A CN 200810132288A CN 200810132288 A CN200810132288 A CN 200810132288A CN 101635479 A CN101635479 A CN 101635479A
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- permanent magnet
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- alternating current
- current motor
- magnetic rotor
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Abstract
The invention provides a permanent-magnetic rotor for an alternating current motor, and belongs to the technical field of motors. The permanent-magnetic rotor for the alternating current motor uses a nonmagnetic body, a semi-magnetic body or an insulator to fix permanent magnets so as to prevent weakening the magnetic energy product of the permanent magnets and avoid vortex and hysteresis phenomenon as much as possible; and the poles of the permanent magnets on the adjacent side are of the same polarity to form a strong magnetic area between the poles of the same polarity, thereby increasing the attraction distance between a rotor pole part and a motor stator core for easy starting. If appropriate materials for fixing the permanent magnets are selected, the permanent-magnetic rotor for the alternating current motor has large capacity of bearing a centrifugal force. The permanent-magnetic rotor for the alternating current motor comprises a rotating shaft (1), a rotary body (2) for fixing the permanent magnets, the permanent magnets (3), fixing plates (4), and the like. The permanent-magnetic rotor for the alternating current motor has the advantages of easy starting, synchronous rotation, high rated rotating speed, easy manufacture, high energy-saving efficiency, and the like.
Description
Technical field
The invention relates to permanent-magnetic rotor for alternating current motor, be to utilize nonmagnetic material, semimagnetism body or insulator fixed permanent magnet, prevent to weaken the magnetic energy product of permanent magnet, avoid the generation of eddy current and hysteresis as far as possible, and, make the permanent magnetism of adjacent side be arranged in homopolarity, make with interpolar and form the ferromagnetism zone, distance and startup easily between rotor magnetic pole part and stator core in motor have been become estranged, also have as long as select the material of fixed permanent magnet proper, the ability that the permanent-magnetic rotor for alternating current motor of this invention bears centrifugal force is big.
Common synchronous motor is a kind of with the alternating current motor of the irrelevant synchronous rotation of load under certain frequency.
Common synchronous motor is the electromagnetic wire of reeling on the stator that forms of silicon steel sheet stack, make it form revolving magnetic system, add dc electromagnetic field on the rotor, motor is rotated synchronously, need actuating coil on this synchronous electric motor rotor, also need magnet exciting coil, after startup finishes, close the power supply on the actuating coil, also need excitation DC electricity generation equipment etc.
Invention in these several years is produced, and the p-m rotor synchronous motor is: have only on the basis of asynchronous motor to embed permanent magnet on the rotor, make its synchronous rotation, this synchronous motor does not need actuating coil., rotor forms with the silicon steel sheet stack, and this silicon steel sheet can absorb the part magnetic energy product of permanent magnet, and, produce eddy current on the silicon steel sheet of rotor, produce hysteresis again, consume some energy.It is relatively poor to also have this motor rotor to bear the ability of centrifugal force, the restriction high speed rotating.
Also have, the new invention technology of a kind of alternating current motor p-m rotor in addition is: be provided with permanent magnet on the circumference of rotor, smooth and easy in order to start, the electromagnetic wire of around each utmost point of that permanent magnet, having reeled, when coming to a startup, apply DC power supply from the outside, permanent magnet is temporarily lost its reliss, impel motor start-up.Behind the motor start-up, utilize centrifugal switch, turn off the DC power supply that applies from the outside.Just because of this, increased additional facilities, tripping force is faint again, cannot high speed rotating etc. disadvantage.
In order to remove these problems, I am in korean application and disclose the alternating current motor p-m rotor, and publication number is: 10-2008-0004153.This is to be the center with the axle, around the axle nonmagnetic material of fixed permanent magnet or the rotor block of semimagnetism body or insulator is arranged, and embeds permanent magnet on this rotor block, permanent magnet and the oblique angled arrangement of axis.In the technology of this alternating current motor p-m rotor, comprising the arrangement of permanent magnet around axle, the utmost point that adjacent side is relative has opposite pole, just under these circumstances, two utmost points that are not adjacent side are in contact, but nonmagnetic material occupies certain distance between opposite pole, and the shortcoming that weakens magnetic is arranged.
Summary of the invention
The present invention is exactly in order to solve the shortcoming on the above-mentioned prior art, utilize nonmagnetic material, semimagnetism body or insulator, fixed permanent magnet, prevented that the iron core of fixed permanent magnet from absorbing the phenomenon generation of the part magnetic energy product of permanent magnet, prevented the generation of eddy current and hysteresis, be easy to start maximum as much as possible again saves energy source.
Need the problem of solution and the means of solution
The feature of alternating current motor p-m rotor of the present invention has rotating shaft, have around the rotating shaft and select one of a kind of material formation to turn in nonmagnetic material, semimagnetism body or the insulator, this is turned on the circumference, with the axle is the center, symmetry has embedded plural permanent magnet uniformly mutually, and, the relative very homopolarity of adjacent side of the permanent magnet that embeds also comprises permanent magnet.
Effect
First effect
The material of turning of fixed permanent magnet of the present invention is nonmagnetic material, semimagnetism body or insulator, absorbs the part magnetic energy product of permanent magnetism and prevent turning of fixed permanent magnet, and, prevent to produce eddy current and hysteresis, to greatest extent the saves energy source.
Second effect
The permanent magnet that embeds is arranged in the relative very homopolarity of adjacent side, makes with interpolar and forms the ferromagnetism zone, has become estranged the utmost point of permanent magnet and the direct attraction distance between stator, and has started easily.
The 3rd effect
Though magnet steel is crisp, the material of turning of fixed permanent magnet of the present invention has wrapped up permanent magnet, has the usefulness of magnetic steel anti-shedding, can bear its powerful centrifugal force, is fit to high speed rotating.
The quadruple effect fruit
Permanent-magnetic rotor for alternating current motor of the present invention does not need the asynchronous motor stator coil to give rotor formation magnetic field required a large amount of reactive current, power factor height when permanent-magnetic rotor for alternating current motor of the present invention is for this reason worked, operate as normal under the minimum current can be rotated again synchronously.
For the particular content of implementing
Below describe the accompanying drawing of permanent-magnetic rotor for alternating current motor of the present invention in detail.
Fig. 1 is the decomposition view of an example of permanent-magnetic rotor for alternating current motor of the present invention;
Fig. 2 is that the axle that waits of permanent-magnetic rotor for alternating current motor of the present invention is surveyed view;
Fig. 3 is that the axle that waits after the stator on permanent-magnetic rotor for alternating current motor of the present invention is dismantled is surveyed a view;
Fig. 4 is the front view of the permanent-magnetic rotor for alternating current motor of the present invention in Fig. 3;
Fig. 5 is that the axle that waits of an example after the dismounting stator is surveyed view in another permanent-magnetic rotor for alternating current motor of the present invention;
Fig. 6 is the front view of the permanent-magnetic rotor for alternating current motor in Fig. 5;
Fig. 7 is that the axle of pulling down in the middle of another example of permanent-magnetic rotor for alternating current motor of the present invention after the stator that waits is surveyed a view;
Fig. 8 is the front view of the permanent-magnetic rotor for alternating current motor in Fig. 7;
Fig. 9 is that the axle of pulling down in the middle of another example of permanent-magnetic rotor for alternating current motor of the present invention after the stator that waits is surveyed a view;
Figure 10 is the front view of the permanent-magnetic rotor for alternating current motor in Fig. 9;
Permanent-magnetic rotor for alternating current motor of the present invention is on turn (2) of fixed permanent magnet, embeds plurally, and making the permanent magnet adjacent side is that homopolarity is arranged.Permanent-magnetic rotor for alternating current motor centre then of the present invention has the hole (21) of insertion rotating shaft (1), with the center is benchmark, the axis hole of keeping certain distance has turn (2) of the fixed permanent magnet of plural embedding permanent magnet trough (22) on every side, permanent magnet (3) is embedded in fixed permanent magnet turn (2) around on the embedding permanent magnet trough (22) that forms, and the utmost point of the permanent magnet of embedding (3) adjacent side is that homopolarity is relative.The permanent magnet (3) and axle (1) line parallel that embed.
Permanent-magnetic rotor for alternating current motor of the present invention is the same of diagrammatic sketch in Fig. 1 to Figure 10, and the quantity that embeds permanent magnet (3) is even number.
Turn (2) of fixed permanent magnet are to make permanent magnet (3) begin to keep certain distance from axle (1), be fixed up, self axis of centres is to connecting axis hole (21), with this axis hole (21) is the center, keep certain distance and form fixed permanent magnet groove (22), then, turn (2) of fixed permanent magnet are to select a kind of material in the middle of nonmagnetic material, semimagnetism body or insulator.The reason of like this selecting magnetic force does not attract or attraction is faint material to make turn (2) of fixed permanent magnet is, prevents the magnetic energy product of loss permanent magnet (3) and does.
Above-mentioned nonmagnetic material is not inhale the magnetic stainless steel, little suction magnetic stainless steel, copper, aluminium alloy, aluminium, magnesium etc.Turn (2) that utilize a kind of material wherein can make fixed permanent magnet.
Above-mentioned semimagnetism body is aluminium alloy, antimony, semimagnetism stainless steel, bismuth alloy etc.Turn (2) that utilize a kind of material wherein can make fixed permanent magnet.
Above-mentioned insulator is, resistivity is high, all materials of non-conducting low-tension current, and bigger mechanical strength is arranged, and high temperature resistant, the life-span is long etc. and utilize a kind of material wherein can make turning of fixed permanent magnet.
The turning of fixed permanent magnet (2) go up the fixed permanent magnet groove (22) that forms be with Fig. 1 to Fig. 4 and Fig. 7 to Figure 10 in the same, the external diameter of turn (2) of fixed permanent magnet is little and permanent magnet (3) partly exposes.Also have external diameter in turn (2) of illustrated the same fixed permanent magnet in Fig. 5 and Fig. 6 than Fig. 1 to Fig. 4 and Fig. 7 to Figure 10 in the external diameter of turn (2) of illustrated fixed permanent magnet big, held and whole permanent magnet (3) is embraced.
Here because turn (2) of fixed permanent magnet embrace and held permanent magnet (3), and permanent-magnetic rotor for alternating current motor can radially not come off when specified rotation, for this reason, it is just passable only need to prevent that permanent magnet from circumferentially moving.Thereby stator (4) has been installed in the both sides of turn (2) of fixed permanent magnet.In order to eliminate producible heat on the rotor as much as possible, and a side of stator (4) forms fin (42).This stator (4) is circular tabular, and there is the axis hole (41) of perforation rotating shaft (1) in central authorities.It corresponds to the bolt hole (43) in bolt hole (23) and the stator (4) on turn (2) of fixed permanent magnet in the both sides of turn (2) of fixed permanent magnet, then, making stator (4) be fixed on fixed permanent magnet with bolt (5) turns on (2).
The quantity that constitutes the permanent magnet (3) of permanent-magnetic rotor for alternating current motor of the present invention is illustrated the same in Fig. 1 to Figure 10, can only be even number.The relative magnetic pole of adjacent side is a homopolarity to make permanent magnet become even number to embed also like this, and a pair of homopolarity forms a strong polarity zone.
The size of the volume of permanent magnet (3) is that the size according to the magnetic energy product of permanent magnet determines that round column is arranged for this reason, also has oval column etc.
The shape that embeds permanent magnet trough (22) is the permanent magnet (3) that embeds this groove certainly for basis.
Description of drawings
Fig. 1 is the exploded view of an example of permanent-magnetic rotor for alternating current motor of the present invention;
Fig. 2 is that the axle that waits of permanent-magnetic rotor for alternating current motor example of the present invention is surveyed view;
Fig. 3 is that the axle that waits after the stator on permanent-magnetic rotor for alternating current motor of the present invention is dismantled is surveyed a view;
Fig. 4 is the front view of the permanent-magnetic rotor for alternating current motor of the present invention in Fig. 3;
Fig. 5 is that the axle that waits after the dismounting stator is surveyed view in another example of permanent-magnetic rotor for alternating current motor of the present invention;
Fig. 6 is the front view of permanent-magnetic rotor for alternating current motor in Fig. 5;
Fig. 7 is that the axle that waits after the dismounting stator is surveyed a view in the middle of another example of permanent-magnetic rotor for alternating current motor of the present invention;
Fig. 8 is the front view of the permanent-magnetic rotor for alternating current motor in Fig. 7;
Fig. 9 is that the axle that waits after the dismounting stator is surveyed a view in the middle of another example of permanent-magnetic rotor for alternating current motor of the present invention;
Figure 10 is the front view of the permanent-magnetic rotor for alternating current motor in Fig. 9;
1: rotating shaft
2: fixed permanent magnet is turned
21: axis hole 22: embed permanent magnet trough 23: fixing hole
3: permanent magnet
4: stator
41: axis hole 42: fin 43: fixing hole
5: bolt
Claims (8)
1. there is assembling rotating shaft (1) axis hole (21) in columned central authorities, the fixed permanent magnet of plural embedding permanent magnet trough (22) turn (2) is arranged from the position that axis hole is kept certain distance, stator (4) is arranged on fixed permanent magnet and turns on (2), permanent magnet (3) is (2) the upward embedding of turning at fixed permanent magnet, simultaneously, the permanent magnet that embeds, the utmost point relative with adjacent side is homopolarity.The permanent-magnetic rotor for alternating current motor that comprises above-mentioned technology and make.
2. the turn both sides of (2) of the fixed permanent magnet in the 1st are set to stator (4), prevent the alternating current motor permanent magnet rotor that permanent magnet is moved from permanent magnet trough (22) lining.
3. in the 1st and the 2nd, the quantity of the permanent magnet of embedding (3) is the permanent-magnetic rotor for alternating current motor of even number.
4. in the 3rd, the material of making turn (2) of fixed permanent magnet is that nonmagnetic material, semimagnetism body or insulator are the permanent-magnetic rotor for alternating current motor of feature.
5. in the 4th, the material of stator (4) is that nonmagnetic material, semimagnetism body or insulator are the permanent-magnetic rotor for alternating current motor of feature.
6. in the 5th, according to the turn size of external diameter of (2) of fixed permanent magnet, be arranged on the permanent magnet (3) of permanent magnet trough (22), in turn at fixed permanent magnet (2), the permanent-magnetic rotor for alternating current motor for feature is exposed or do not exposed to part.
7. in the 6th, stator (4) has the axis hole (41) of insertion rotating shaft (1), and fixed permanent magnet is turned, and corresponding with the fixing hole (43) on the stator (4) afterwards to be fixed on the turn two ends of (2) of fixed permanent magnet with bolt (5) be the permanent-magnetic rotor for alternating current motor of feature for fixing hole (23) that the two ends of (2) form.
8. set bolt (5) is that bolt is the permanent-magnetic rotor for alternating current motor of feature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810132288A CN101635479A (en) | 2008-07-24 | 2008-07-24 | Permanent-magnetic rotor for alternating current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810132288A CN101635479A (en) | 2008-07-24 | 2008-07-24 | Permanent-magnetic rotor for alternating current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101635479A true CN101635479A (en) | 2010-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810132288A Pending CN101635479A (en) | 2008-07-24 | 2008-07-24 | Permanent-magnetic rotor for alternating current motor |
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| Country | Link |
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| CN (1) | CN101635479A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522838A (en) * | 2011-11-30 | 2012-06-27 | 西安久和能源科技有限公司 | Tangential magnetic steel permanent magnet motor rotor |
| CN103516082A (en) * | 2012-06-22 | 2014-01-15 | Lg伊诺特有限公司 | Rotor with surface mounted magnets |
| CN104659939A (en) * | 2015-01-28 | 2015-05-27 | 深圳市良益实业有限公司 | Skewed slot anomalistic permanent magnet synchronous motor |
| CN104704711A (en) * | 2012-03-13 | 2015-06-10 | 博泽沃尔兹堡汽车零部件有限公司 | Electrical machine with a high level of efficiency |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19723302A1 (en) * | 1997-06-04 | 1998-12-10 | Sen Rainer Born | Permanent magnet system with reluctance support for rotors of electrical machines |
-
2008
- 2008-07-24 CN CN200810132288A patent/CN101635479A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19723302A1 (en) * | 1997-06-04 | 1998-12-10 | Sen Rainer Born | Permanent magnet system with reluctance support for rotors of electrical machines |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522838A (en) * | 2011-11-30 | 2012-06-27 | 西安久和能源科技有限公司 | Tangential magnetic steel permanent magnet motor rotor |
| CN104704711A (en) * | 2012-03-13 | 2015-06-10 | 博泽沃尔兹堡汽车零部件有限公司 | Electrical machine with a high level of efficiency |
| CN103516082A (en) * | 2012-06-22 | 2014-01-15 | Lg伊诺特有限公司 | Rotor with surface mounted magnets |
| CN104659939A (en) * | 2015-01-28 | 2015-05-27 | 深圳市良益实业有限公司 | Skewed slot anomalistic permanent magnet synchronous motor |
| CN104659939B (en) * | 2015-01-28 | 2018-05-25 | 深圳市良益实业有限公司 | Skewed slot abnormal shape permanent magnet synchronous motor |
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Application publication date: 20100127 |