CN201025689Y - A plane loop permanent magnetic wind generator - Google Patents
A plane loop permanent magnetic wind generator Download PDFInfo
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- CN201025689Y CN201025689Y CNU2007200673242U CN200720067324U CN201025689Y CN 201025689 Y CN201025689 Y CN 201025689Y CN U2007200673242 U CNU2007200673242 U CN U2007200673242U CN 200720067324 U CN200720067324 U CN 200720067324U CN 201025689 Y CN201025689 Y CN 201025689Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
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Abstract
The utility model relates to a plane coil type permanent magnet wind power generator, comprising a plurality of permanent magnetic steels, a winding coil body, an axis and a shell. The plurality of permanent magnet steels are arranged homogeneously and symmetrically on the both sides of upper and lower of the winding coil body which includes an annular column support body with a plurality of coil holes arranged on the circumference thereof. One coil is coiled in each coil hole horizontally; the axis locates in the rotation center of the power generator and drives the plurality of permanent magnetic steels to run. Compared with the prior art, the utility model has the advantages that electromotive force outputted from the power generator is enhanced at low rotational speed, and cut-in wind speed of the middle and small wind power generators descends by over 0.5m/s and comes up to 2 to 2.5m/s, even lower. Thus the utilization rate of energy sources-the wind power which is inexhaustible energy is improved greatly, which means the popularization of wind power generation in our country and wide promotion the use of low wind speed wind power generators are of great realistic significance.
Description
Technical field
The utility model relates to wind-driven generator, particularly relates to a kind of planar coil formula permanent-magnetic wind driven generator.
Background technology
At present most middle-size and small-size wind turbine generator are used the conventional generator of permanent magnetism.They follow the basic structure criterion of motor.Build up the stator core that circle has wire casing by silicon steel sheet promptly, be wound with the enamelled wire coil in the groove.Be peripherally equipped with by thulium permanent magnet at stator and inlay the coaxial annular pole wheel that forms.(seeing figure one) will produce electric current in the lead, just induced electromotive force according to the law of electromagnetic induction when the lead cutting magnetic line.It is expressed as: e=BLVsin (a) is under the basic the same situation of other conditions, and the effective power output power of generator depends on the size of permanent magnetic steel magnetic flux (B), or the speed of the length of coil and motor rotation.Yet the rotating speed of wind energy conversion system has only per minute tens to change to hundreds of again, reach certain effective output voltage, can only improve coil turn, but coil turn too much will increase the motor internal resistance greatly, reduces delivery efficiency.Certainly adopting the alloy magnet steel of ultra-high magnetic fiux density also is one of way, but can bring motor cost significantly to rise.
Therefore, how to design zero and play torque, ultralow rotating speed generating, exporting high efficiency wind-driven generator is an important topic of China's development wind power generation cause.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of planar coil formula permanent-magnetic wind driven generator for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of planar coil formula permanent-magnetic wind driven generator, it is characterized in that, comprise some permanent-magnet steels, winding wire circle body, axle, shell, described some permanent-magnet steels are located at the both sides up and down of winding wire circle body symmetrically, described winding wire circle body comprises the supporter of annular cylinder, circumference around supporter is provided with some coil hole, and each coil hole level is arranged with coil; Described axle is positioned at the pivot of generator, and drives some permanent-magnet steels rotations.
Described some permanent-magnet steels are embedded at the upper and lower inner surface of shell symmetrically, and connect into magnetic loop by soft magnetic material respectively; Fixedly connected with axle in the supporter center of described winding wire circle body.
The supporter of described winding wire circle body is passed by axle, and is fixed in the inner surface of shell both sides; Described axle is gone up the sheathed supporter of two annular cylinder up and down that is fixed with, these two supporters are arranged in the both sides up and down of winding wire circle body respectively, described some permanent-magnet steels are embedded at the one side that two supporters are pressed close to the winding wire circle body symmetrically, and connect into magnetic loop by soft magnetic material respectively.
The supporter of described winding wire circle body is provided with three an X coil hole around its circumference, and all coils hole is located on the same plane, and level is arranged with one group of coil in each coil hole, and every group of coil all drawn electric wire by series-parallel system and and be connected.
Described permanent-magnet steel is the high magnetic accumulated energy rare-earth permanent magnet steel.
The silicon steel body of described supporter for forming by the folded system of some soft magnetic material silicon steel sheets.
Described axle two ends are provided with ball bearing.
Described axle is stainless steel or alloy steel material axle.
Described shell is the shell with IP54 classification of waterproof.
Described shell is totally enclosed aluminum alloy casing.
Compared with prior art, the utility model has improved at gentle breeze, the electromotive force of generator output under the slow-speed of revolution condition, make more than incision wind speed decreased 0.5 meter per second of middle-size and small-size wind-driven generator, reach the 2-2.5 meter per second, in addition lower, improved the inexhaustible energy-utilization ratio of wind energy of nature greatly, this extensively promotes the use of low wind speed wind power generator and has great realistic meaning for popularizing wind power generation in China.
Description of drawings
Fig. 1 is existing common generator Structure schematic diagram;
Fig. 2 is the partial structurtes enlarged drawing of Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the structural representation of embodiment 1;
Fig. 6 is the structural representation of embodiment 2.
Wherein: 1-permanent-magnet steel, 2-winding wire circle body, 3-axle, 4-shell, 5-supporter, 6-coil, 7-electric wire, the 8-magnetic line of force.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1～6, a kind of planar coil formula permanent-magnetic wind driven generator, it is characterized in that, comprise some permanent-magnet steels 1, winding wire circle body 2, axle 3, shell 4, described some permanent-magnet steels 1 are located at the both sides up and down of winding wire circle body 2 symmetrically, described winding wire circle body 2 comprises the supporter of annular cylinder, and the circumference that centers on supporter is provided with some coil hole, and each coil hole level is arranged with coil 6; Described axle 3 is positioned at the pivot of generator, and drives some permanent-magnet steels 1 rotations.
Described some permanent-magnet steels 1 are embedded at shell 4 upper and lower inner surfaces symmetrically, and connect into magnetic loop by soft magnetic material respectively; Fixedly connected with axle 3 in the supporter center of described winding wire circle body 2; The supporter of described winding wire circle body 2 is passed by axle 3, and is fixed in the inner surface of shell 4 both sides; The sheathed supporter of two annular cylinder up and down that is fixed with on the described axle 3, these two supporters are arranged in the both sides up and down of winding wire circle body 2 respectively, described some permanent-magnet steels 1 are embedded at the one side that two supporters 5 are pressed close to winding wire circle body 2 symmetrically, and connect into magnetic loop by soft magnetic material respectively; The supporter of described winding wire circle body 2 is provided with three an X coil hole around its circumference, and all coils hole is located on the same plane, and level is arranged with one group of coil 6 in each coil hole, and every group of coil 6 all drawn electric wire 6 by series-parallel system and and be connected; Described permanent-magnet steel 1 is the high magnetic accumulated energy rare-earth permanent magnet steel; The silicon steel body of described supporter for forming by the folded system of some soft magnetic material silicon steel sheets; Described axle 3 two ends are provided with ball bearing; Described axle 3 is stainless steel or alloy steel material axle; Described shell 4 is for having the shell of IP54 classification of waterproof; Described shell 4 is totally enclosed aluminum alloy casing.
Change the version of traditional permanent magnet generator, significantly improving effective flux under substantially with the volume condition, will make generator under the gentle breeze slow-speed of revolution situation still can export the electric energy of certain electromotive force with general permanent magnet generator.Just greatly reduce the incision wind speed of wind-driven generator.
Specific design is exactly: abandon common loop coil, the common generator designs of annular magnetic steel field structure (seeing Fig. 1, Fig. 2).Adopt brand-new plane winding coil, the electric generator structure form of last lower plane rare earth magnetic steel magnetic pole.(seeing Fig. 3, Fig. 4).Stator is formed by the folded system of the circular silicon steel sheet of slices, has the winding coil hole of some around circumference.Level is embedded with the generator windings coil in the hole.The magnetic pole of being made up of thulium permanent magnet then is distributed in the both sides up and down of winding coil.Obviously, as can be seen from the figure, under the condition of same motor diameter, the structure of plane winding has more one times than the used magnet steel number of general loop configuration.B just
Newly=2B
OldThe magnetic line of force quantity of supposing each piece permanent magnetic steel is that magnetic flux is the same.So, the electromotive force E of the permanent magnet generator of new design generation
Newly=B
NewlyLVsin (a)=2B
OldLVsin (a)=2E
OldIn like manner: if we only need the identical generator of output voltage, so new design just can reach two effects: one reduces by one times of generator speed, if rotating speed was 100 rev/mins when originally generator was exported 100V voltage, exports same voltage now and only need 50 rev/mins.It two can reduce the winding coil number of turn, strengthens line footpath (number of turn X solid conductor sectional area less than generator wind the line slotted eye), reduces the generator loss thereby reduce winding resistance, improves the generator effective output.
Planar coil formula permanent-magnetic wind driven generator is mainly by stator, rotor, and shell, axle four parts are formed.Shell: whole-sealed aluminum alloy structure, classification of waterproof IP54; Axle: stainless steel or alloy steel material, two ends are equipped with ball bearing, to reduce frictional dissipation as far as possible;
Embodiment 1 (see figure 5)
The external rotor part: rare earth magnetic steel evenly is embedded in the upper and lower inner surface of shell, and is paired up and down, connects into magnetic loop by soft magnetic material;
The internal stator part: most crucial is the flat stator part, and the winding wire circle body is fixed on the axle by its supporter, and evenly is embedded with 3X coil, draws three wires by connection, the output three-phase alternating current.
Embodiment 2 (see figure 6)s
The external stator part: most crucial is the flat stator part, and the winding wire circle body is fixed on the shell by its supporter, and evenly is embedded with 3X coil, draws three wires by connection, the output three-phase alternating current;
The internal rotor part: rare-earth permanent magnet steel is embedded in the rotating shaft end face that the winding wire circle body is being shown consideration in two supports symmetrically, and is paired up and down, connects into magnetic loop by soft magnetic material.
Planar coil formula permanent-magnetic wind driven generator can be according to the difference of different wind power generation kinds (horizontal axis rotor or vertical axis rotor) and power output mounting means, select above two kinds to implement version: external rotor internal stator generator or external stator internal rotor generator, both generating design principles are the same.
Claims (10)
1. planar coil formula permanent-magnetic wind driven generator, it is characterized in that, comprise some permanent-magnet steels, winding wire circle body, axle, shell, described some permanent-magnet steels are located at the both sides up and down of winding wire circle body symmetrically, described winding wire circle body comprises the supporter of annular cylinder, circumference around supporter is provided with some coil hole, and each coil hole level is arranged with coil; Described axle is positioned at the pivot of generator, and drives some permanent-magnet steels rotations.
2. a kind of planar coil formula permanent-magnetic wind driven generator according to claim 1 is characterized in that described some permanent-magnet steels are embedded at the upper and lower inner surface of shell symmetrically, and connect into magnetic loop by soft magnetic material respectively; Fixedly connected with axle in the supporter center of described winding wire circle body.
3. a kind of planar coil formula permanent-magnetic wind driven generator according to claim 1 is characterized in that the supporter of described winding wire circle body is passed by axle, and is fixed in the inner surface of shell both sides; Described axle is gone up the sheathed supporter of two annular cylinder up and down that is fixed with, these two supporters are arranged in the both sides up and down of winding wire circle body respectively, described some permanent-magnet steels are embedded at the one side that two supporters are pressed close to the winding wire circle body symmetrically, and connect into magnetic loop by soft magnetic material respectively.
4. according to claim 1 or 2 or 3 described a kind of planar coil formula permanent-magnetic wind driven generators, it is characterized in that, the supporter of described winding wire circle body is provided with three an X coil hole around its circumference, the all coils hole is located on the same plane, level is arranged with one group of coil in each coil hole, and every group of coil all drawn electric wire by series-parallel system and and be connected.
5. a kind of planar coil formula permanent-magnetic wind driven generator according to claim 1 is characterized in that described permanent-magnet steel is the high magnetic accumulated energy rare-earth permanent magnet steel.
6. according to claim 2 or 3 described a kind of planar coil formula permanent-magnetic wind driven generators, it is characterized in that the silicon steel body of described supporter for forming by the folded system of some soft magnetic material silicon steel sheets.
7. a kind of planar coil formula permanent-magnetic wind driven generator according to claim 1 is characterized in that, described axle two ends are provided with ball bearing.
8. according to claim 1 or 7 described a kind of planar coil formula permanent-magnetic wind driven generators, it is characterized in that described axle is stainless steel or alloy steel material axle.
9. a kind of planar coil formula permanent-magnetic wind driven generator according to claim 1 is characterized in that described shell is the shell with IP54 classification of waterproof.
10. according to claim 1 or 9 described a kind of planar coil formula permanent-magnetic wind driven generators, it is characterized in that described shell is totally enclosed aluminum alloy casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200673242U CN201025689Y (en) | 2007-02-13 | 2007-02-13 | A plane loop permanent magnetic wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200673242U CN201025689Y (en) | 2007-02-13 | 2007-02-13 | A plane loop permanent magnetic wind generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025689Y true CN201025689Y (en) | 2008-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200673242U Expired - Fee Related CN201025689Y (en) | 2007-02-13 | 2007-02-13 | A plane loop permanent magnetic wind generator |
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| Country | Link |
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| CN (1) | CN201025689Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807839A (en) * | 2010-04-22 | 2010-08-18 | 福建福安闽东亚南电机有限公司 | Permanent magnet disk type coreless breeze start-up aerogenerator |
| CN103066782A (en) * | 2012-11-01 | 2013-04-24 | 北京理工大学 | Magnetoelectricity type micro generator |
-
2007
- 2007-02-13 CN CNU2007200673242U patent/CN201025689Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807839A (en) * | 2010-04-22 | 2010-08-18 | 福建福安闽东亚南电机有限公司 | Permanent magnet disk type coreless breeze start-up aerogenerator |
| CN103066782A (en) * | 2012-11-01 | 2013-04-24 | 北京理工大学 | Magnetoelectricity type micro generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100213 |