CN100547900C - Magnetic suspending wind turbine generator - Google Patents
Magnetic suspending wind turbine generator Download PDFInfo
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- CN100547900C CN100547900C CNB2006100114351A CN200610011435A CN100547900C CN 100547900 C CN100547900 C CN 100547900C CN B2006100114351 A CNB2006100114351 A CN B2006100114351A CN 200610011435 A CN200610011435 A CN 200610011435A CN 100547900 C CN100547900 C CN 100547900C
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Abstract
The invention provides a kind of magnetic suspending wind turbine generator, comprise impeller, axle, motor and bearing, described impeller is arranged at shaft end, described motor is arranged at an other end, one-sided or the bilateral of motor is provided with bearing, it is characterized in that: described bearing one or both sides are provided with magnetic levitation system, but described magnetic levitation system comprises one or one group of fixed cover and is loaded on rotor magnetic or magnetic conduction that has on the axle, and the magnetic stator device that is arranged at the described rotor outside, described magnetic stator device comprises stator magnet, and described stator magnet and rotor have a difference in height and maintain end play with it.It is simple and reasonable for structure, compact, with low cost that the present invention has, and Maintenance free not only makes the starting wind velocity of wind-driven generator reduce, and can also effectively improve the power output of generator.
Description
Technical field
The present invention relates to wind power plant, especially relate to a kind of novel magnetic suspending wind turbine generator.
Background technology
Wind energy not only has clean environment firendly, reproducible characteristics, and its distribution region is vast, we can say ubiquitously, and be convenient to utilize, and be a kind of novel energy that has development prospect.And people utilize wind power generation, not only can not produce any negative effect, but also can bring slow down the wind-force disaster, suppress desertification, minimizing or reduce the benefit of sandstorm quantity and intensity.
People are familiar with and utilize wind energy that long history is arranged, mainly be to utilize windmill to replace the mankind to irrigate in early days, simple work such as husk rice with mortar and pestle, we utilize wind power generation at present, but the wind that nature produced is variable direction not only, and the wind-force size is also changeable, and traditional mechanical type bearing wind-driven generator, it starts the wind speed requirement minimum is 3m/s, and for the most of places of China, its wind-force is below 3m/s the most of the time among 1 year, this has wasted with regard to making a large amount of wind resources to utilize, if can reduce the startup wind speed of wind-driven generator, not only can improve the usefulness of utilizing of wind power plant, and can produce a large amount of electric power more, its economic benefit and social benefit are all extremely huge.
Existing machinery formula bearing wind-driven generator impeller generally all places generator shaft one end with cantilevered fashion, such cantilever design causes generator shaft to be subjected to the downward action of gravity of impeller and its bearing is produced non-axial force, make shaft strength unbalanced, force-bearing situation is not good, frictional force is bigger, add that axle itself also has deadweight, the starting reactance square of therefore present mechanical type wind-driven generator, starting wind velocity, the general higher and power output low (three high is low) of incision wind speed, and people are attempting the starting reactance square, starting wind velocity, when the incision wind speed reduces, again power output has also been reduced, therefore be difficult to make low wind speed wind resource to be applied.
Promptly overcome impeller and axle action of gravity if can make wind-driven generator axle cantilever end be in suspended state, will significantly reduce the dynamo bearing force in radial, will significantly reduce the frictional force of bearing simultaneously, can effectively reduce the starting wind velocity of wind-driven generator.Present magnetic suspending wind turbine generator, electromagnetic suspension wind-driven generator as the U.S., because suspension bearing all needs control in each degree of freedom, therefore its control system is extremely complicated and huge, its cost is very high, and very fastidious to operating maintenance and applied environment, can not be widely used in wind power generation field.
Summary of the invention
At defective that exists in the prior art and deficiency, the invention provides a kind of magnetic levitation technology that utilizes and overcome the wind-driven generator that cantilevered axle is subjected to the gravity flexible deformation, simple in structure, cost is low.The present invention adopts novel magnetically levitated structure, utilize the magnetic force that makes progress that is produced to overcome the impeller self gravitation, thereby make the wind-driven generator shaft strength obtain equilibrium, reduce the frictional force that bearing produces, thereby effectively reduce starting reactance square, starting wind velocity and the incision wind speed of wind-driven generator and improve the generating power output.
Technical scheme of the present invention is as follows:
Magnetic suspending wind turbine generator, comprise impeller, axle, motor and bearing, described impeller is arranged at shaft end, described motor is arranged at an other end, one-sided or the bilateral of motor is provided with bearing, it is characterized in that: described bearing one or both sides are provided with magnetic levitation system, but described magnetic levitation system comprises one or one group of fixed cover and is loaded on rotor magnetic or magnetic conduction that has on the axle, and the magnetic stator device that is arranged at the described rotor outside, described magnetic stator device comprises stator magnet, and described stator magnet and rotor have a difference in height and maintain end play with it.
Two outsides, described rotor top are provided with stator magnet.
Described stator magnet is permanent magnet or electromagnet.
The radial section of described stator magnet is fan-shaped or semi-circular structure.
Described fan-shaped arc angle is 45 °.
Described magnetic stator device also comprises support, and described each stator magnet is arranged on this support.
Described support is inverted U-shaped framework magnetism guiding access structure.
Described inverted U-shaped frame structure, its two side are made up of the end cap and the motor housing of bearing respectively, and top, described two side links to each other by a magnetic conductivity thing, so that the two side constitutes magnetism guiding access.
But described rotor is sheet or plate-like magnetic conduction or the ferromagnetic body that magnetizes, and described ferromagnetic body is that silicon steel material or rare-earth alloy material are made.
Described rotor is sheet or plate-like permanent magnet.
Technique effect of the present invention is:
A kind of magnetic suspending wind turbine generator, by magnetic levitation system being set in the bearing one or both sides, but this device comprises one or one group of fixed cover and is loaded on rotor magnetic or magnetic conduction that has on the axle, and the magnetic stator device that is arranged at the rotor upper outside, magnetic stator device stator magnet and rotor have a difference in height, because rotor itself has magnetic or have corresponding magnetic under the magnetization of magnetic stator, this difference in height just can make rotor that magnetic action power (repulsion or gravitation) is upwards arranged, therefore axle is impeller and the axle downward power that self gravitation produced one of the active force that radially is subjected to, another is the support force that the magnetive attraction that makes progress that is subjected to of rotor and mechanical bearing make progress, because the magnetive attraction that makes progress, can offset the gravity of part impeller and axle, make the radial force of bearing greatly reduce, the suffered unbalanced force of axle be improved significantly, therefore, the frictional force that it produced also significantly reduces, make the starting reactance square of wind-driven generator, starting wind velocity, the incision wind speed reduces, can also effectively improve the power output of generator, huge economy and social value are arranged.
Because the present invention is provided with stator magnet in the rotor both sides, two stator magnets produce magnetive attraction respectively on rotor, its radial load direction of each magnetive attraction is identical, and the axial force direction is opposite, thereby its axial force is cancelled out each other, so the radial load upwards of making a concerted effort to be of suffered two magnetive attractions of ferromagnetic body.Therefore, adopt magnetic levitation system of the present invention not only can eliminate the adverse effect that wind wheel gravity is produced fully, and can avoid influencing the performance of wind-driven generator owing to the axial thrust load of magnetive attraction, simultaneously, permanent magnetic floating wind generator of the present invention is simple and reasonable for structure, compact, with low cost, Maintenance free.
Experiment showed, the minimum 3.5m/s of being of traditional its starting wind velocity of mechanical type bearing wind-driven generator, its starting wind velocity of wind-driven generator of the present invention can effectively be reduced to 1.5m/s, and can improve output generated output 20%.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
The 1-impeller, 2-axle, 3-rotor, 4-stator, 5-axle sleeve, 6-nut, 7-support.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Be the structural representation of the preferred embodiment of the present invention as shown in Figure 1 and Figure 2.
Impeller 1 is positioned at an end of axle 2, and the other end of axle 2 is respectively arranged with motor and bearing.Magnetic levitation system is arranged between motor and the impeller 1.
Magnetic levitation system comprises rotor 3, and the magnetic stator device that is arranged at described rotor 3 outsides, and described magnetic stator device comprises stator 4.
The bilateral symmetry of Fig. 1 rotor 3 is provided with stator 4, and stator 4 can be that magnet structure also can be an electromagnet.Stator 4 is arranged on the two side of support 7, support 7 is inverted U-shaped frame structure, and its two side can be respectively the end cap side and the motor housing side of bearing, and top, described two side links to each other by a magnetic conductivity thing, so that the two side constitutes magnetism guiding access, the magnetic conduction thing can be a carbon structural steel etc.Such supporting structure can utilize the permeance of support, and magnetic energy weakens because the magnetic line of force leaks to avoid being positioned at its stator 4.Support 7 is fixed on the frame of wind-driven generator.Certainly, support 7 also can be the independent inverted U-shaped magnetic conduction frame structure that is provided with.
Stator 4 has a difference in height with rotor 3 tops, when the top of stator 4 magnetic pole and rotor 3 are opposite, because magnetic pole attracts each other, rotor 3 is subjected to magnetive attraction effect upwards, thereby axle 2 also is subjected to an active force that makes progress, cancel out each other with the gravity of impeller 1 and axle, thereby reach the purpose of offsetting impeller and axle gravity.
And owing to be provided with stator 4 in rotor 3 both sides, the stator 4 of both sides all produces magnetive attraction to rotor 3, two magnetive attractions all have radial load upwards, but its axial force just in time direction is opposite, cancel out each other, thereby avoided axial magnetive attraction to the influence that wind-driven generator causes, made that magnetic suspension effect of the present invention is more remarkable.
Stator 4 and support 7 radial cross-sections are fan-shaped, and it is good that its outer arc angle is 45 °.Stator 4 and support 7 radial cross-sections also can be semi-circular or other shape.
In the present embodiment, stator 4 and support 7 are arranged at the top of rotor 3, certainly, when rotor 3 is magnet structure, stator 4 and support 7 also can be arranged at the below of rotor 3, but, this moment stator 4 the lower end magnetic pole require to be made as with rotor 3 lower ends be like pole, like this, rotor 3 will be subjected to magnetic repulsive force upwards and offset with impeller 1 gravity.
The above only is a preferred implementation of the present invention.Should be pointed out that for a person skilled in the art,, can also make a lot of modification and improvement, but these modification and improvement all will fall into protection scope of the present invention according to invention spirit of the present invention and essence.
Claims (9)
1. magnetic suspending wind turbine generator, comprise impeller, axle, motor and bearing, described impeller is arranged at shaft end, described motor is arranged at an other end, one-sided or the bilateral of motor is provided with bearing, it is characterized in that: described bearing one or both sides are provided with magnetic levitation system, but described magnetic levitation system comprises one or one group of fixed cover and is loaded on rotor magnetic or magnetic conduction that has on the axle, it is characterized in that also comprising the magnetic stator device that is arranged at the described rotor outside, described magnetic stator device comprises stator magnet, two outsides, described rotor top or two outsides, bottom are provided with stator magnet, and described stator magnet and rotor have a difference in height and maintain end play with it.
2. magnetic suspending wind turbine generator as claimed in claim 1 is characterized in that: described stator magnet is permanent magnet or calutron.
3. magnetic suspending wind turbine generator as claimed in claim 2 is characterized in that: the radial section of described stator magnet is fan-shaped or semi-circular structure.
4. magnetic suspending wind turbine generator as claimed in claim 3 is characterized in that: described fan-shaped arc angle is 45 °.
5. magnetic suspending wind turbine generator as claimed in claim 2 is characterized in that: described magnetic stator device also comprises support, and described each stator magnet is arranged on this support.
6. magnetic suspending wind turbine generator as claimed in claim 5 is characterized in that: described support is inverted U-shaped framework magnetism guiding access structure.
7. magnetic suspending wind turbine generator as claimed in claim 1 is characterized in that: but described rotor is sheet or plate-like magnetic conduction or the ferromagnetic body that magnetizes, and described ferromagnetic body is that silicon steel material or rare-earth alloy material are made.
8. magnetic suspending wind turbine generator as claimed in claim 1 is characterized in that: described rotor is sheet or plate-like permanent magnet.
9. magnetic suspending wind turbine generator, comprise impeller, axle, motor and bearing, described impeller is arranged at shaft end, described motor is arranged at an other end, the one-sided bearing that is provided with of motor, it is characterized in that: described bearing one side is provided with magnetic levitation system, but described magnetic levitation system comprises one or one group of fixed cover and is loaded on rotor magnetic or magnetic conduction that has on the axle, it is characterized in that also comprising the magnetic stator device that is arranged at the described rotor outside, described magnetic stator device comprises stator magnet, two outsides, described rotor top or two outsides, bottom are provided with stator magnet, described stator magnet and rotor have a difference in height and maintain end play with it, described stator magnet is permanent magnet or calutron, described magnetic stator device also comprises support, described stator magnet is arranged on this support, described support is inverted U-shaped framework magnetism guiding access structure, described inverted U-shaped framework magnetism guiding access structure, its two side is made up of the end cap and the motor housing of bearing respectively, top, described two side links to each other by a magnetic conductivity thing, so that the two side constitutes magnetism guiding access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100114351A CN100547900C (en) | 2006-03-06 | 2006-03-06 | Magnetic suspending wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100114351A CN100547900C (en) | 2006-03-06 | 2006-03-06 | Magnetic suspending wind turbine generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101034862A CN101034862A (en) | 2007-09-12 |
| CN100547900C true CN100547900C (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100114351A Active CN100547900C (en) | 2006-03-06 | 2006-03-06 | Magnetic suspending wind turbine generator |
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| CN (1) | CN100547900C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936261B (en) * | 2010-09-03 | 2012-06-27 | 余江海 | Sail blade type oriented wind driven generator |
| CN106114282B (en) * | 2016-07-01 | 2022-07-15 | 大连天亿软件有限公司 | Magnetic suspension power system |
| CN109268390A (en) * | 2018-11-26 | 2019-01-25 | 北京航空航天大学 | A kind of precision tracking bracket multi-coil axial magnetic bearing |
| CN112594215A (en) * | 2020-11-26 | 2021-04-02 | 珠海格力电器股份有限公司 | Centrifugal fan |
| CN113530985A (en) * | 2021-08-04 | 2021-10-22 | 珠海格力电器股份有限公司 | Rotating shaft assembly, rotating shaft axial magnetic suspension positioning structure, compressor and air conditioner |
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2006
- 2006-03-06 CN CNB2006100114351A patent/CN100547900C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101034862A (en) | 2007-09-12 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan ZKenergy Wind Power Industry Technology Co.,Ltd. Assignor: Hunan Zhongke Hengyuan Technology Co.,Ltd. Contract fulfillment period: 2009.9.20 to 2019.9.19 Contract record no.: 2009430000198 Denomination of invention: Vertical full magnetic suspension wind force power generator Granted publication date: 20091007 License type: Exclusive license Record date: 20091117 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.20 TO 2019.9.19; CHANGE OF CONTRACT Name of requester: HUNAN ZHONGKE HENGYUAN WIND POWER INDUSTRY SCIENCE Effective date: 20091117 |
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| C56 | Change in the name or address of the patentee |
Owner name: ZKENERGY SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HUNAN ZHONGKE HENGYUAN TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 410000 No. 198 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee after: ZK ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 410000 No. 198 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee before: Hunan Zhongke Hengyuan Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210622 Address after: Room 1301-02, northwest of Bayi Bridge, Furong Middle Road, wangluyuan street, Kaifu District, Changsha City, Hunan Province 410005 Patentee after: Hunan Zhongnanshan Technology Development Co.,Ltd. Address before: 101511 room 508-28, Xitiangezhuang town government office building, No.8 Xitong Road, Miyun Economic Development Zone, Beijing Patentee before: Beijing Huayuan Hongsheng Energy Technology Co.,Ltd. Effective date of registration: 20210622 Address after: 101511 room 508-28, Xitiangezhuang town government office building, No.8 Xitong Road, Miyun Economic Development Zone, Beijing Patentee after: Beijing Huayuan Hongsheng Energy Technology Co.,Ltd. Address before: 410000 No. 198 west slope, Changsha hi tech Industrial Development Zone, Changsha, Hunan, Yuelu District, Tongzi Patentee before: ZK ENERGY SCIENCE & TECHNOLOGY Co.,Ltd. |
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