CN101860104A - Magnetic mechanism for rotor of permanent magnet motor or permanent magnet generator - Google Patents
Magnetic mechanism for rotor of permanent magnet motor or permanent magnet generator Download PDFInfo
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- CN101860104A CN101860104A CN 201010195472 CN201010195472A CN101860104A CN 101860104 A CN101860104 A CN 101860104A CN 201010195472 CN201010195472 CN 201010195472 CN 201010195472 A CN201010195472 A CN 201010195472A CN 101860104 A CN101860104 A CN 101860104A
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Abstract
The invention discloses a magnetic mechanism for a rotor of a permanent magnet motor or a permanent magnet generator, and aims to provide the magnetic mechanism which increases the thrust effect of a magnetic field by changing the structure of the magnetic field. The magnetic mechanism of the invention is characterized in that S poles and N poles of a plurality of magnetic shoes made of permanent magnet materials are arranged alternately, and the magnetic force, of the magnetic shoes made of permanent magnet materials, of the S poles are greater than that of the N poles. The magnetic mechanism of the invention makes the magnetic force of the S poles and the N poles which are arranged alternately different by changing the structure of the magnetic field, increases the gap between the thrust and the resistance, improves the conversion rate of the electromagnetic energy, and improves the using efficiency and the useful power; when the torque angle used for the rotor of the permanent magnet motor is increased, the magnetic energy product is increased, so that the current flow is reduced, the service life is prolonged and the function of saving energy and power is realized; and when the torque angle used for the rotor of the permanent magnet generator is reduced, the magnetic energy product is increased, and the conversion rate of the electromagnetic energy is improved, so that energy is saved.
Description
Technical field
The present invention relates to a kind of magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator.
Background technology
The foundation structure of conventional electric rotary machine constitutes by a rotor, stator, rotating shaft with by common electronic circuit built-in or that be disposed at motor, the rotor of permanent-magnetic electric machine is formed by fixedly connecting by conventional magnetic material assembly and permanent-magnet component, permanent-magnet component is towards the stator armature iron core, armature core is provided with the coil windings assembly towards the circumferential surface of rotor, thereby constitutes an EM induction system of being made up of basic magnetic field and coil windings.In this system, the form of the S utmost point and N utmost point alternate layout is adopted in the basic magnetic field that the magnetic mechanism of being made up of the polylith permanent magnetic tile forms at present, and its S utmost point is identical with N utmost point magnetic force, and promptly magnetism intensity is identical, and magnetic field is thrust and resistance big or small identical in the running.When the magnetic mechanism of said structure was used for the rotor of motor, because the S utmost point is identical with N utmost point magnetic force, under the certain prerequisite of power output, the electric current of its generation was big, and action time is just few, and service time is short.When the magnetic mechanism of said structure was used for the rotor of generator, because the S utmost point is identical with N utmost point magnetic force, the magnetic field size differences of thrust and resistance in the running was less, and its commentaries on classics elongation is big, and the electric current of generation is little, and energy output is little.
Summary of the invention
The present invention is in order to overcome weak point of the prior art, a kind of magnetic mechanism is provided, by changing magnetic field structure, increase the thrust in magnetic field, be used on the permanent magnet motor and can reduce electric current, extend working time, play the effect of energy-conservation economize on electricity, be used on the permanent magnet generator and can increase electric current, raising energy output, energy savings.
The present invention is achieved through the following technical solutions:
A kind of magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator, comprise polylith permanent magnetic material magnetic shoe, the S utmost point and the N utmost point of polylith permanent magnetic material magnetic shoe are arranged alternately, it is characterized in that, the magnetic force of all S utmost point permanent magnetic material magnetic shoes is greater than the magnetic force of all N utmost point permanent magnetic material magnetic shoes, perhaps, the magnetic force of all S utmost point permanent magnetic material magnetic shoes is greater than the magnetic force of all N utmost point permanent magnetic material magnetic shoes.
In adjacent two blocks of permanent magnetic material magnetic shoes, when the magnetic force of S utmost point permanent magnetic material magnetic shoe was strong, a little less than the magnetic force of N utmost point permanent magnetic material magnetic shoe, perhaps, when a little less than the magnetic force of the S utmost point permanent magnetic material magnetic shoe, the magnetic force of N utmost point permanent magnetic material magnetic shoe was strong.
Every block of permanent magnetic material magnetic shoe is that a magnetic patch or piled up by the polylith magnetic patch forms, magnetic patch be shaped as in rectangle, circle, the ellipse any.
Polylith permanent magnetic material magnetic shoe is arranged in circle.
The present invention has following technique effect:
Magnetic mechanism of the present invention is by changing magnetic field structure, and the S utmost point that makes arranged alternate is strong and weak different with the N utmost point, has strengthened the gap between thrust and the resistance, has increased the thrust in magnetic field, has improved the transfer ratio of electromagnetic energy, has improved service efficiency and available power.Being used in changes the elongation increase on the permanent-magnet electric machine rotor, magnetic energy product increases, thereby reduces current flow, extends working time under the identical condition of power output, plays effect energy-conservation, economize on electricity.Being used on the rotor of permanent-magnetic power generator changes elongation and reduces, and magnetic energy product increases, and has improved the transfer ratio of electromagnetic energy, under identical condition, can increase electric current, improves energy output, energy savings.
Description of drawings
Fig. 1 is the schematic diagram that S utmost point magnetic force is strong in the magnetic mechanism of the present invention, N utmost point magnetic force is weak;
Fig. 2 is the schematic diagram that S utmost point magnetic force is weak in the magnetic mechanism of the present invention, N utmost point magnetic force is strong;
The structural representation of a kind of magnetic shoe of Fig. 3 the present invention;
The structural representation of a kind of magnetic shoe of Fig. 4 the present invention;
The schematic diagram of a kind of magnetic shoe shape of Fig. 5 the present invention;
The schematic diagram of a kind of magnetic shoe shape of Fig. 6 the present invention;
The schematic diagram of a kind of magnetic shoe shape of Fig. 7 the present invention;
The schematic diagram of a kind of magnetic structure of Fig. 8 the present invention;
Fig. 9 magnetic mechanism of the present invention is used for the schematic diagram of motor rotor.
Embodiment
Below in conjunction with the drawings and specific embodiments to the detailed description of the invention.
The magnetic mechanism that the present invention is used for permanent magnet motor or rotor of permanent-magnetic power generator comprises polylith permanent magnetic material magnetic shoe, the S utmost point and the N utmost point of polylith permanent magnetic material magnetic shoe are arranged alternately, the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes is greater than the magnetic force sum of all N utmost point permanent magnetic material magnetic shoes, perhaps, the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes is greater than the magnetic force sum of all N utmost point permanent magnetic material magnetic shoes.Every block of permanent magnetic material magnetic shoe is that a magnetic patch or piled up by the polylith magnetic patch forms.
Realize the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes and the different structures that can adopt various ways of magnetic force sum of all N utmost point permanent magnetic material magnetic shoes, the magnetic force of polylith S utmost point permanent magnetic material magnetic shoe can be the same or different, and the magnetic force of polylith N utmost point permanent magnetic material magnetic shoe can be the same or different.The power of every permanent magnetic material magnetic shoe magnetic force can be by forming every block of permanent magnetic material magnetic shoe the thickness difference of magnetic patch or the number of plies difference that magnetic patch piles up realize.The thickness of magnetic patch is big more, the number of plies is many more, and the active force in magnetic field is big more.
In order to keep the stable of magnetic force, the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes realizes by following manner greater than the magnetic force sum of all N utmost point permanent magnetic material magnetic shoes:
As shown in Figure 1, the magnetic force of the polylith S utmost point permanent magnetic material magnetic shoe 2 of composition magnetic mechanism of the present invention is identical, the magnetic force of polylith N utmost point permanent magnetic material magnetic shoe 1 is identical, S utmost point permanent magnetic material magnetic shoe and N utmost point permanent magnetic material magnetic shoe are arranged alternately, in adjacent two blocks of S utmost point permanent magnetic material magnetic shoes and N utmost point permanent magnetic material magnetic shoe, when the magnetic force of S utmost point permanent magnetic material magnetic shoe 2 is strong, a little less than the magnetic force of N utmost point permanent magnetic material magnetic shoe 1, like this, the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes is greater than the magnetic force sum of all N utmost point permanent magnetic material magnetic shoes.Magnetic field is when rotating, and magnetic induction line cutting dynamics changes because the thrust of the S utmost point is big with the drag effect size differences of the N utmost point, thrust and resistance be thrust with joint efforts, and thrust greater than the S utmost point active force when identical with N utmost point magnetic force, changed the size of angle of torsion.When being used for motor rotor, change elongation and increase, magnetic energy product increases, thereby reduces current flow.When being used for generator, change elongation and reduce, magnetic energy product increases, thereby increases the generation current flow, increases power output.
As shown in Figure 2, the magnetic force of the polylith S utmost point permanent magnetic material magnetic shoe 2 of composition magnetic mechanism of the present invention is identical, the magnetic force of polylith N utmost point permanent magnetic material magnetic shoe 1 is identical, S utmost point permanent magnetic material magnetic shoe and N utmost point permanent magnetic material magnetic shoe are arranged alternately, in adjacent two blocks of S utmost point permanent magnetic material magnetic shoes and N utmost point permanent magnetic material magnetic shoe, when a little less than the magnetic force of S utmost point permanent magnetic material magnetic shoe 2, the magnetic force of N utmost point permanent magnetic material magnetic shoe 1 is strong, like this, the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes is less than the magnetic force sum of all N utmost point permanent magnetic material magnetic shoes.Magnetic field is when rotating, and magnetic induction line cutting dynamics changes, because the thrust of the N utmost point is greater than the drag effect of the S utmost point, the increase of the force action of thrust and resistance has changed the size of angle of torsion.When being used for motor rotor, change elongation and increase, magnetic energy product increases, thereby reduces current flow.When being used for generator, change elongation and reduce, magnetic energy product increases, thereby increases the generation current flow, increases power output.
The magnetic force difference of forming the polylith S utmost point permanent magnetic material magnetic shoe of magnetic mechanism of the present invention, the magnetic force difference of polylith N utmost point permanent magnetic material magnetic shoe, Fig. 8 is the schematic diagram of a kind of magnetic mechanism of the present invention, and the magnetic patch number of plies of the local N utmost point or the S utmost point is many, and the magnetic patch number of plies at other positions is identical or different.
Fig. 3 and Fig. 4 are respectively the schematic diagram of different structure permanent magnetic material magnetic shoe, and the size of forming the magnetic patch of permanent magnetic material magnetic shoe magnetic shoe can be different, and every layer thickness also can be different.Form magnetic shoe magnetic patch be shaped as any or other Any shape in rectangle, circle, the ellipse.The schematic diagram of the permanent magnetic material magnetic shoe of forming by polylith rectangle magnetic patch as shown in Figure 5, the schematic diagram of the permanent magnetic material magnetic shoe of forming by the circular magnetic patch of polylith as shown in Figure 6, the schematic diagram of the permanent magnetic material magnetic shoe of being made up of polylith ellipse magnetic patch is as shown in Figure 7.
Fig. 9 magnetic mechanism of the present invention is used for the schematic diagram of motor rotor, can be external rotor, also can be internal rotor.In the present embodiment, polylith permanent magnetic material magnetic shoe is formed the circle of conventional rotors pattern, and the polylith permanent magnetic material magnetic shoe S utmost point and the N utmost point are arranged alternately rounded arrangement, and the magnetic patch number of plies that S utmost point permanent magnetic material magnetic shoe 2 is arranged is few, and the number of plies that N utmost point permanent magnetic material magnetic shoe 1 is arranged is many, forms the extremely weak magnetic field of the extremely strong S of N.The thrust of this magnetic field N utmost point can reduce current flow greater than the drag effect of the S utmost point, improves the effective power of electromagnetic energy.Through overtesting, the motor that magnetic mechanism of the present invention is formed through with market on the electric bicycle that generally uses motor relatively, under the certain prerequisite of voltage, power output changes little, and the magnitude of current obviously reduces.Motor voltage as a certain electric bicycle on the market is 48V, and revolution 1300 changes no-load current 1.15A, load-carrying electric current 10-13A.And the motor that is assembled into the magnetic mechanism of the present invention embodiment shown in Figure 9, when voltage was 48V, revolution can reach 1100 to be changeed, no-load current 0.1-0.25A, and load-carrying electric current 2-2.5A realizes effect energy-conservation, that economize on electricity.
Although relate to a kind of magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator and carried out special description disclosed with reference to embodiment, embodiment described above is illustrative and not restrictive, under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within the scope of the present invention.
Claims (5)
1. magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator, comprise polylith permanent magnetic material magnetic shoe, the S utmost point and the N utmost point of polylith permanent magnetic material magnetic shoe are arranged alternately, it is characterized in that, the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes is greater than the magnetic force sum of all N utmost point permanent magnetic material magnetic shoes, perhaps, the magnetic force sum of all S utmost point permanent magnetic material magnetic shoes is greater than the magnetic force sum of all N utmost point permanent magnetic material magnetic shoes.
2. the magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator according to claim 1, it is characterized in that, in adjacent two blocks of permanent magnetic material magnetic shoes, when the magnetic force of S utmost point permanent magnetic material magnetic shoe is strong, a little less than the magnetic force of N utmost point permanent magnetic material magnetic shoe, perhaps, when a little less than the magnetic force of the S utmost point permanent magnetic material magnetic shoe, the magnetic force of N utmost point permanent magnetic material magnetic shoe is strong.
3. the magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator according to claim 1 is characterized in that, every block of permanent magnetic material magnetic shoe is that a magnetic patch or piled up by the polylith magnetic patch forms.
4. the magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator according to claim 1 is characterized in that, magnetic patch be shaped as in rectangle, circle, the ellipse any.
5. the magnetic mechanism that is used for permanent magnet motor or rotor of permanent-magnetic power generator according to claim 1 is characterized in that, polylith permanent magnetic material magnetic shoe is arranged in circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010195472 CN101860104A (en) | 2009-06-17 | 2010-06-09 | Magnetic mechanism for rotor of permanent magnet motor or permanent magnet generator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910069291.9 | 2009-06-17 | ||
| CN200910069291 | 2009-06-17 | ||
| CN 201010195472 CN101860104A (en) | 2009-06-17 | 2010-06-09 | Magnetic mechanism for rotor of permanent magnet motor or permanent magnet generator |
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| Publication Number | Publication Date |
|---|---|
| CN101860104A true CN101860104A (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010195472 Pending CN101860104A (en) | 2009-06-17 | 2010-06-09 | Magnetic mechanism for rotor of permanent magnet motor or permanent magnet generator |
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| CN (1) | CN101860104A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570660A (en) * | 2010-10-29 | 2012-07-11 | 日立Via机械株式会社 | Galvanoscanner and laser processing machine |
| CN102624103A (en) * | 2011-01-31 | 2012-08-01 | 山西华夏动力科技有限公司 | Motor outer permanent magnet assembling structure |
| CN103846158A (en) * | 2014-02-27 | 2014-06-11 | 中国地质科学院郑州矿产综合利用研究所 | Power magnetic suspension separation and enrichment method and equipment |
| CN111614220A (en) * | 2020-06-10 | 2020-09-01 | 山东大学 | Low-torque pulsation high-speed axial magnetic flux surface-mounted permanent magnet motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370606Y (en) * | 1998-06-29 | 2000-03-22 | 许开灿 | High efficiency permanent magnetic motor |
| CN101431264A (en) * | 2007-11-05 | 2009-05-13 | 株式会社东芝 | Permanent magnet motor and washing machine |
-
2010
- 2010-06-09 CN CN 201010195472 patent/CN101860104A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2370606Y (en) * | 1998-06-29 | 2000-03-22 | 许开灿 | High efficiency permanent magnetic motor |
| CN101431264A (en) * | 2007-11-05 | 2009-05-13 | 株式会社东芝 | Permanent magnet motor and washing machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570660A (en) * | 2010-10-29 | 2012-07-11 | 日立Via机械株式会社 | Galvanoscanner and laser processing machine |
| CN102570660B (en) * | 2010-10-29 | 2015-10-21 | 维亚机械株式会社 | Electrical scanner and laser machine |
| CN102624103A (en) * | 2011-01-31 | 2012-08-01 | 山西华夏动力科技有限公司 | Motor outer permanent magnet assembling structure |
| CN102624103B (en) * | 2011-01-31 | 2015-10-14 | 山西华夏动力科技有限公司 | Motor outer permanent magnet assembly structure |
| CN103846158A (en) * | 2014-02-27 | 2014-06-11 | 中国地质科学院郑州矿产综合利用研究所 | Power magnetic suspension separation and enrichment method and equipment |
| CN103846158B (en) * | 2014-02-27 | 2016-05-11 | 中国地质科学院郑州矿产综合利用研究所 | Power magnetic suspension separation and enrichment method and equipment |
| CN111614220A (en) * | 2020-06-10 | 2020-09-01 | 山东大学 | Low-torque pulsation high-speed axial magnetic flux surface-mounted permanent magnet motor |
| CN111614220B (en) * | 2020-06-10 | 2021-11-09 | 山东大学 | Low-torque pulsation high-speed axial magnetic flux surface-mounted permanent magnet motor |
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Application publication date: 20101013 |