CN102969812A - Modulation ring rotor based on magnetic shielding principle - Google Patents
Modulation ring rotor based on magnetic shielding principle Download PDFInfo
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- CN102969812A CN102969812A CN2012105435890A CN201210543589A CN102969812A CN 102969812 A CN102969812 A CN 102969812A CN 2012105435890 A CN2012105435890 A CN 2012105435890A CN 201210543589 A CN201210543589 A CN 201210543589A CN 102969812 A CN102969812 A CN 102969812A
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Abstract
The invention discloses a modulation ring rotor based on a magnetic shielding principle, belongs to the field of a permanent magnet motor, and aims at solving the problem that the existing modulation ring rotor can not consider both low loss and high mechanical strength. The modulation ring rotor comprises two end rings, n magnetic blocks and n connecting rods, wherein a plurality of through holes are uniformly formed in the end surfaces of the end rings along the periphery direction; a plurality of screw holes are uniformly formed in one end surface of the end rings; the two end rings are arranged in parallel; the screw hole sides of the end rings are arranged back to back; the positions of the through holes in the two end rings are opposite one by one; the n magnetic blocksare arranged between the two end rings; each magnetic block is fixed with the two end rings together through one connecting rod; a cylindrical screw is arranged at each end of a body of each connecting rod; the body of each connecting rod is embedded in the magnetic block; the screws at the two ends of the body of the connecting rod respectively penetrate through the through holes; and each screw is fixedly provided with a nut for clamping the end rings and the magnetic blocks.
Description
Technical field
The present invention relates to the modulation rotor based on the magnetic field shielding principle, belong to the magneto field.
Background technology
Brushless double-rotor machine based on the magnetic field modulation principle has two rotating speed rotors independent of each other and rotating shaft, can realize the twin shaft drive.It has solved has in the brush double-rotor machine in the past, because the operational efficiency that adopts the electric brush slip ring structure to cause descends, reliability reduces and the frequent maintenance issues of needs, and with the heating of armature winding rotor seriously and dynamic equilibrium problems.Therefore, have broad application prospects in occasions such as electric automobile, wind power generation, torpedo propellings.
The operation principle of this brushless double-rotor machine based on the magnetic field modulation principle has been to elaborate among ZL201010274167.9, ZL201010274160.7, ZL 201010274156.0, ZL201010274135.9, ZL201010274669.1, ZL201010274337.3, ZL201010274329.9, the ZL201010274325.0 in the patent No..By to the analysis of this machine operation principle as can be known, can realize that the core component of this machine operation is modulated rotor exactly.Be to be made of magnetic inductive block and non-magnetic at theory analysis modulation rotor, its effect is: the permanent magnetic field with p-m rotor is modulated into the magnetic field identical with stator armature field pole logarithm on the one hand, thereby produces torque with the stator armature magnetic fields; On the other hand the stator armature magnetic field modulation is become the magnetic field identical with the permanent magnetic field number of pole-pairs of p-m rotor, thus with the permanent magnetic field effect generation torque of p-m rotor.Therefore, can find out that the modulation rotor is the key point that realizes this brushless double-rotor machine work based on the magnetic field modulation principle.
In the electric machine structure of reality, magnetic inductive block is to be made of permeability magnetic material, and non-magnetic is to be made of non-magnet material.Permeability magnetic material can be selected the good materials of magnetic property such as silicon steel sheet, solid-iron, soft-magnetic composite material, soft magnetic ferrite; Non-magnet material can be selected air or epoxy resin, the non-magnet material such as magnetic conduction steel not.And the magnetic inductive block that consists of with present permeability magnetic material in the modulation rotor all can produce loss under the motor-field effect, the loss that different permeability magnetic materials produce is different, consisted of the loss minimum of magnetic inductive block under the equal volume by silicon steel material, and consisted of the loss maximum of magnetic inductive block by the solid-iron material.
And when motor moved, the modulation rotor will transmit certain moment of torsion, also will bear the centrifugal force of High Rotation Speed and the magnetic field pulling force that magnetic field produces, and therefore modulating rotor will have very high mechanical strength guarantee motor reliability service.
Thereby in service at the motor of reality, will there be such contradictory problems: otherwise used permeability magnetic material can make the loss of modulation rotor very low, do not make the modulation rotor can bear the centrifugal force of certain moment of torsion, High Rotation Speed generation and the magnetic field pulling force that magnetic field produces but do not possess very high mechanical strength, just be difficult to make this motor carry out practical engineering application yet; Used permeability magnetic material can make the modulation rotor have very high mechanical strength, thereby but make the very large efficient that greatly reduces motor of loss of modulating rotor, also just limited the application prospect of motor.
Existing modulation rotor can't be taken into account low-loss and high mechanical properties.
Summary of the invention
The present invention seeks to take into account in order to solve existing modulation rotor the problem of low-loss and high mechanical properties, a kind of modulation rotor based on the magnetic field shielding principle is provided.
Modulation rotor based on the magnetic field shielding principle of the present invention, it comprises two end ring, a n magnetic inductive block and n connecting rod,
Along the circumferential direction evenly be provided with a plurality of through holes on the end face of end ring, evenly be provided with a plurality of screw holes on the end face of end ring,
Two end ring be arranged in parallel, and the opposing setting of screw hole side of end ring, and the lead to the hole site in two end ring is relative one by one, and n magnetic inductive block is set between two end ring, and each magnetic inductive block is fixed together with a connecting rod and two end ring,
The shaft two ends of connecting rod arrange respectively a columniform screw rod, and the shaft of connecting rod is embedded in magnetic inductive block inside, and the screw rod that is positioned at the shaft two ends passes respectively through hole, all are fixed with nut on each screw rod, and described nut is used for clamping end ring and magnetic inductive block;
Wherein, n is positive integer.
Magnetic inductive block is formed by silicon steel plate stacking, laminates direction and the axially parallel of modulating rotor.
The shaft of connecting rod adopts non-magnet material or permeability magnetic material.
Can further include bandage, bandage is fastened on the outer round surface of modulation rotor.
Can further include epoxy resin, epoxy resin fills up the space between end ring and the magnetic inductive block.
Advantage of the present invention: silicon steel sheet has the good and little advantage of the loss under magnetic fields of magnetic property among the present invention, and when connecting rod is made of non-magnet material, the magnetic field that enters thus in the magnetic inductive block does not enter connecting rod substantially, and the loss in the connecting rod will be very little so.This shows, the extraordinary silicon steel sheet of magnetic property has shielded the magnetic field that enters in the non-magnet material connecting rod, even therefore connecting rod is metal material, its loss also can be very little, and connecting rod adopts the loss of the good metal material of magnetic property and non-magnetic metal material to extremely shown in Figure 15 such as Figure 12.Among Figure 12 to Figure 15, under identical motor conditions, only be that the material of connecting rod is adjusted, can find out: during the empty load of motor operation, 1/10 of the connecting rod loss when the connecting rod loss when connecting rod adopts non-magnet material is about permeability magnetic material; During the motor load operation, 1/2 of the connecting rod loss when the connecting rod loss when connecting rod adopts non-magnet material is about permeability magnetic material.
On the structure of the modulation rotor of final formation, silicon steel sheet adopts the mode that laminates of parallel modulation rotor axis to build up magnetic inductive block, and by the metal material connecting rod magnetic inductive block has been formed to have the very magnetic inductive block unit of high mechanical properties, be key point of the present invention.When connecting rod is non-magnetic conductive metal material formation, has the very little advantage of loss in such magnetic inductive block unit as can be known by the magnetic field shielding principle simultaneously.
The present invention adopts the mode that laminates of parallel modulation rotor axis to build up magnetic inductive block by silicon steel sheet, and magnetic inductive block has been formed have the very magnetic inductive block unit of high mechanical properties by the metal material connecting rod, thereby and then magnetic inductive block unit and end ring linked into an integrated entity be formed with the very modulation rotor of high mechanical properties.On the one hand, make the modulation rotor have very high mechanical strength, little this self material advantage of the loss that utilizes on the other hand silicon steel sheet under magnetic fields, to produce, simultaneously when connecting rod be non-magnetic conductive metal material when consisting of, utilize the magnetic field shielding principle to make the loss in the connecting rod also very little.This makes this brushless double-rotor machine based on the magnetic field modulation principle step essential step by theoretical motor model to practical engineering application so that modulation rotor of the present invention has the little and high advantage of mechanical strength of loss simultaneously.
Description of drawings
Fig. 1 is the structural representation of the modulation rotor based on the magnetic field shielding principle of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of end ring;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is the structural representation of magnetic inductive block, and the arrow among the figure is the direction that laminates of silicon steel sheet;
Fig. 6 is the structural representation of connecting rod;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the structural representation of the described modulation rotor based on the magnetic field shielding principle of execution mode two;
Fig. 9 is the C-C sectional view of Fig. 8;
Figure 10 is the structural representation of the described modulation rotor based on the magnetic field shielding principle of execution mode three;
Figure 11 is the D-D sectional view of Figure 10;
When Figure 12 was the empty load of motor operation, connecting rod adopted the damage curve figure of permeability magnetic material;
When Figure 13 was the empty load of motor operation, connecting rod adopted the damage curve figure of non-magnet material;
When Figure 14 was the motor load operation, connecting rod adopted the damage curve figure of permeability magnetic material;
When Figure 15 was the motor load operation, connecting rod adopted the damage curve figure of non-magnet material.
Embodiment
Embodiment one: below in conjunction with Fig. 1 to Fig. 7 present embodiment is described, the described modulation rotor based on the magnetic field shielding principle of present embodiment, it comprises two end ring 1, a n magnetic inductive block 2 and n connecting rod 3,
Along the circumferential direction evenly be provided with a plurality of through hole 1-1 on the end face of end ring 1, evenly be provided with a plurality of screw hole 1-2 on the end face of end ring 1,
Two end ring 1 be arranged in parallel, and the opposing setting of screw hole side of end ring 1, and the through hole 1-1 position in two end ring 1 is relative one by one, and n magnetic inductive block 2 is set between two end ring 1, and each 1 connecting rod 3 of magnetic inductive block 2 usefulness and two end ring 1 are fixed together,
The shaft two ends of connecting rod 3 arrange respectively a columniform screw rod 3-1, the shaft of connecting rod 3 is embedded in magnetic inductive block 2 inside, the screw rod 3-1 that is positioned at the shaft two ends passes respectively through hole 1-1, all is fixed with nut on each screw rod 3-1, and described nut is used for clamping end ring 1 and magnetic inductive block 2;
Wherein, n is positive integer.
Magnetic inductive block 2 is formed by silicon steel plate stacking, laminates the axially parallel of direction and modulation rotor.The lamination process of silicon steel sheet will guarantee the outline of all silicon steel sheets and the perforate alignment at two ends.Pass the hole of magnetic inductive block 2 with connecting rod 3, formed like this a magnetic inductive block unit.
The cross section of magnetic inductive block 2 is fan-shaped, trapezoidal, rectangle or circle.
The shaft of connecting rod 3 adopts non-magnet material or permeability magnetic material.The non-magnet material of selecting is such as not magnetic conduction steel, titanium alloy, aluminium alloy or copper.The permeability magnetic material selected is such as steel, cast iron or evanohm.
The cross section of the shaft of connecting rod 3 is circle, rectangle, square or oval.
Evenly be provided with a plurality of screw hole 1-2 on the end face of end ring 1, in order to be connected with the motor miscellaneous part.
Connecting rod 3 penetrates magnetic inductive block 2, and the end bar 3-1 at connecting rod 3 two ends passes the through hole 1-1 of two end ring 1, and with nut magnetic inductive block 2, connecting rod 3 and two end ring 1 is connected and fixed.So just make two end ring 1, a n magnetic inductive block 2 and n connecting rod 3 form one and have the very overall structure of high mechanical properties, also just formed the modulation rotor.
The structure of modulation rotor from present embodiment, silicon steel sheet adopts the mode that laminates of parallel modulation rotor axis to build up magnetic inductive block 2, and magnetic inductive block has been formed have the very magnetic inductive block unit of high mechanical properties by the metal material connecting rod, thereby and then magnetic inductive block unit and two end ring 1 are linked into an integrated entity be formed with the very modulation rotor of high mechanical properties.On the one hand, make the modulation rotor have very high mechanical strength, little this self material advantage of the loss that utilizes on the other hand silicon steel sheet under magnetic fields, to produce, simultaneously when connecting rod 3 are non-magnetic conductive metal materials when consisting of, utilize the magnetic field shielding principle to make the loss in the connecting rod also very little.This makes the brushless double-rotor machine based on the magnetic field modulation principle have good engineering practicability so that modulation rotor of the present invention has the little and high advantage of mechanical strength of loss simultaneously.
Embodiment two: below in conjunction with Fig. 8 and Fig. 9 present embodiment is described, present embodiment is described further execution mode one, and it also comprises bandage 4, and bandage 4 is fastened on the outer round surface of modulation rotor.
Embodiment three: below in conjunction with Figure 10 and Figure 11 present embodiment is described, present embodiment is described further execution mode one, and it also comprises epoxy resin 5, and epoxy resin 5 fills up the space between end ring 1 and the magnetic inductive block 2.
Modulation rotor Air part is watered with epoxy resin in Figure 10, has formed the modulation rotor among Figure 11.The modulation rotor Mechanical Reliability of this execution mode is higher.
Embodiment four: the described modulation rotor based on the magnetic field shielding principle of present embodiment, it comprises two end ring 1, a n magnetic inductive block 2 and nk connecting rod 3,
Along the circumferential direction be provided with nk through hole 1-1 on the end face of end ring 1, each group through hole is made of k through hole 1-1, embed k connecting rod 3 in the corresponding magnetic inductive block, the position of described k through hole 1-1 is corresponding with k connecting rod 3 positions of embedding in the magnetic inductive block 2, be provided with a plurality of screw hole 1-2 on the end face of end ring 1
Two end ring 1 be arranged in parallel, and the opposing setting of screw hole side of end ring 1, and the through hole 1-1 position in two end ring 1 is relative one by one, and n magnetic inductive block 2 is set between two end ring 1, and each magnetic inductive block 2 usefulness k connecting rod 3 and two end ring 1 are fixed together,
The shaft two ends of each connecting rod 3 arrange respectively a columniform screw rod 3-1, the shaft of connecting rod 3 is embedded in magnetic inductive block 2 inside, the screw rod 3-1 that is positioned at the shaft two ends passes respectively through hole 1-1, all is fixed with nut on each screw rod 3-1, and described nut is used for clamping end ring 1 and magnetic inductive block 2;
Wherein, n is positive integer, and k is the positive integer more than or equal to 2.
When present embodiment is applicable to the negligible amounts of magnetic inductive block 2, each magnetic inductive block 2 will be very large in the space that circumferencial direction accounts for so, in this case, the a plurality of connecting rods 3 of each magnetic inductive block 2 usefulness are connected more firm that magnetic inductive block 2 is connected with end ring 1 with end ring 1, the mechanical strength that magnetic inductive block 2 has is higher, do the time spent when the modulation rotor at the centrifugal force of certain moment of torsion, High Rotation Speed generation and the magnetic field pulling force of magnetic field generation, magnetic inductive block 2 deformation are less.
Claims (8)
1. based on the modulation rotor of magnetic field shielding principle, it is characterized in that it comprises two end ring (1), a n magnetic inductive block (2) and n connecting rod (3),
Along the circumferential direction evenly be provided with a plurality of through holes (1-1) on the end face of end ring (1), evenly be provided with a plurality of screw holes (1-2) on the end face of end ring (1),
Two end ring (1) be arranged in parallel, and the opposing setting of screw hole side of end ring (1), through hole (1-1) position in two end ring (1) is relative one by one, n magnetic inductive block (2) is set between two end ring (1), each magnetic inductive block (2) is fixed together with 1 connecting rod (3) and two end ring (1)
The shaft two ends of connecting rod (3) arrange respectively a columniform screw rod (3-1), the shaft of connecting rod (3) is embedded in magnetic inductive block (2) inside, the screw rod (3-1) that is positioned at the shaft two ends passes respectively through hole (1-1), all be fixed with nut on each screw rod (3-1), described nut is used for clamping end ring (1) and magnetic inductive block (2);
Wherein, n is positive integer.
2. described modulation rotor based on the magnetic field shielding principle according to claim 1 is characterized in that magnetic inductive block (2) is formed by silicon steel plate stacking, laminates the axially parallel of direction and modulation rotor.
3. described modulation rotor based on the magnetic field shielding principle according to claim 1 is characterized in that, the cross section of magnetic inductive block (2) is fan-shaped, trapezoidal, rectangle or circle.
4. described modulation rotor based on the magnetic field shielding principle according to claim 1 is characterized in that, the shaft of connecting rod (3) adopts non-magnet material or permeability magnetic material.
5. described modulation rotor based on the magnetic field shielding principle according to claim 1 is characterized in that the cross section of the shaft of connecting rod (3) is circle, rectangle, square or oval.
6. described modulation rotor based on the magnetic field shielding principle according to claim 1 is characterized in that it also comprises bandage (4), and bandage (4) is fastened on the outer round surface of modulation rotor.
7. described modulation rotor based on the magnetic field shielding principle according to claim 6 is characterized in that, bandage (4) adopts the glass fiber stringing to realize.
8. according to claim 1 or 6 described modulation rotors based on the magnetic field shielding principle, it is characterized in that it also comprises epoxy resin (5), epoxy resin (5) fills up the space between end ring (1) and the magnetic inductive block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210543589.0A CN102969812B (en) | 2012-12-14 | 2012-12-14 | Modulation ring rotor based on magnetic shielding principle |
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| CN201210543589.0A CN102969812B (en) | 2012-12-14 | 2012-12-14 | Modulation ring rotor based on magnetic shielding principle |
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| CN102969812B CN102969812B (en) | 2014-12-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106787512A (en) * | 2016-12-26 | 2017-05-31 | 株洲九方装备股份有限公司 | The accurate positioning method and device of a kind of permanent magnetism rotating shaft processing |
| CN108141068A (en) * | 2015-08-24 | 2018-06-08 | 马尼奥毛蒂奇有限公司 | Magnetic drive device and the pole piece for the device |
| CN108365733A (en) * | 2018-05-02 | 2018-08-03 | 盐城哈力动力传动及智能装备产业研究院有限公司 | A kind of magnetic gear structure that can improve production efficiency |
| CN108448869A (en) * | 2018-05-02 | 2018-08-24 | 盐城哈力动力传动及智能装备产业研究院有限公司 | A kind of the modulation ring and its manufacturing method of modulation permanent-magnet gear |
| CN112491244A (en) * | 2020-11-30 | 2021-03-12 | 珠海格力电器股份有限公司 | Magnetic adjusting ring supporting structure, magnetic adjusting ring component, magnetic gear and composite motor |
| CN113937979A (en) * | 2021-03-11 | 2022-01-14 | 国家电投集团科学技术研究院有限公司 | Permanent magnet gear speed change device |
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Cited By (13)
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| US10680502B2 (en) | 2015-08-24 | 2020-06-09 | Magnomatics Limited | Magnetically geared apparatus and a pole piece for such apparatus |
| CN108141068A (en) * | 2015-08-24 | 2018-06-08 | 马尼奥毛蒂奇有限公司 | Magnetic drive device and the pole piece for the device |
| CN108141068B (en) * | 2015-08-24 | 2021-03-09 | 马尼奥毛蒂奇有限公司 | Magnetic transmission device and pole piece for same |
| CN106787512A (en) * | 2016-12-26 | 2017-05-31 | 株洲九方装备股份有限公司 | The accurate positioning method and device of a kind of permanent magnetism rotating shaft processing |
| CN106787512B (en) * | 2016-12-26 | 2019-01-29 | 株洲九方装备股份有限公司 | A kind of accurate positioning method and device of the processing of permanent magnetism shaft |
| CN108448869A (en) * | 2018-05-02 | 2018-08-24 | 盐城哈力动力传动及智能装备产业研究院有限公司 | A kind of the modulation ring and its manufacturing method of modulation permanent-magnet gear |
| CN108365733A (en) * | 2018-05-02 | 2018-08-03 | 盐城哈力动力传动及智能装备产业研究院有限公司 | A kind of magnetic gear structure that can improve production efficiency |
| CN108448869B (en) * | 2018-05-02 | 2023-09-26 | 盐城永安科技有限公司 | Modulation ring of modulation type permanent magnet gear and manufacturing method thereof |
| CN108365733B (en) * | 2018-05-02 | 2023-09-29 | 盐城永安科技有限公司 | Magnetic gear structure capable of improving production efficiency |
| CN112491244A (en) * | 2020-11-30 | 2021-03-12 | 珠海格力电器股份有限公司 | Magnetic adjusting ring supporting structure, magnetic adjusting ring component, magnetic gear and composite motor |
| CN112491244B (en) * | 2020-11-30 | 2021-10-29 | 珠海格力电器股份有限公司 | Magnetic adjusting ring supporting structure, magnetic adjusting ring component, magnetic gear and composite motor |
| CN113937979A (en) * | 2021-03-11 | 2022-01-14 | 国家电投集团科学技术研究院有限公司 | Permanent magnet gear speed change device |
| CN113937979B (en) * | 2021-03-11 | 2023-03-14 | 国家电投集团科学技术研究院有限公司 | Permanent magnet gear speed change device |
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