CN202443031U - Wind power collection and wind speed measurement device based on magnetoelectric effect - Google Patents
Wind power collection and wind speed measurement device based on magnetoelectric effect Download PDFInfo
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- CN202443031U CN202443031U CN2012200921417U CN201220092141U CN202443031U CN 202443031 U CN202443031 U CN 202443031U CN 2012200921417 U CN2012200921417 U CN 2012200921417U CN 201220092141 U CN201220092141 U CN 201220092141U CN 202443031 U CN202443031 U CN 202443031U
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Abstract
The utility model discloses a wind power collection and wind speed measurement device based on a magnetoelectric effect. The wind power collection and wind speed measurement device comprises a base, a permanent magnet, a transduction structure, a transduction structure base, a windmill and a windmill base; the permanent magnet is U-shaped, the transduction structure and the transduction structure base are arranged in a U-shaped cavity of the permanent magnet, and the transduction structure comprises a gear, a magnetic body, a rotary shaft and a stator; the magnetic body is circular annular and is fixedly connected below the gear and is sleeved on the rotary shaft with the gear, a plurality of small permanent magnets are uniformly arranged on the peripheral side of the magnetic body, and every two adjacent small permanent magnets are separated by an non-conductive magnetic body; the stator is annually sleeved on the outer ring of the magnetic body and is fixed on the transduction structure base, and the stator is uniformly provided with a plurality of magnetoelectric composite materials along an annular circumference; and the rotary shaft of the windmill is fixedly provided with a transmission gear, and the transmission gear is meshed with the gear of the transduction structure. The wind power collection and wind speed measurement device based on the magnetoelectric effect, disclosed by the utility model, can simultaneously realize functions of wind power collection and wide speed measurement.
Description
Technical field
The utility model relates to a kind of wind collecting and wind speed measuring device based on magnetoelectric effect.
Background technology
The human main energy sources of using is an oil and natural gas, along with the continuous increase of population and the raising of living standards of the people, the demands for energy amount is constantly increased, and can supply to exploit and the oil and natural gas that utilizes fewer and feweri.The mankind will face energy crisis, and therefore developing new forms of energy becomes extremely urgent task.For the protection environment economizes on resources, the human exploitation dynamics that is strengthening renewable resources such as wind energy, water ability and sun power.Inexhaustible, nexhaustible wind energy is the ideal green eco-friendly power source.Generator is to utilize electromagnetic induction principle in the wind power plant at present, when wind-force drives the air vane rotation, drives rotor (electromagnet or the permanent magnet) rotation of wind-power electricity generation machine head, makes the stator winding cutting magnetic line impel generator for electricity generation.According to the difference of rotor, generator can be divided into electric excitation generator and permanent magnet generator.Permanent magnet generator utilizes the rare-earth permanent magnet neodymium iron boron as rotor, compares with traditional electro-magnetic motor, does not need special winding and corresponding device thereof, have simple in structure, reliable, advantage such as loss is little.Small wind-driven generator generally adopts permanent magnet generator.
The measuring method of wind speed has Pitot tube to survey wind speed at present, the hot line hotting mask is surveyed wind speed, ultrasound wave survey wind speed and mechanical sensor and surveyed wind speed, and various measuring methods have the scope of application and the relative merits of oneself.But need adopt different devices, complicated operation with measuring wind speed for wind collecting.
Summary of the invention
The purpose of the utility model is to utilize the magnetoelectric effect of magnetic electric compound material, and a kind of device that can carry out wind collecting and measuring wind speed simultaneously is provided.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of wind collecting and wind speed measuring device based on magnetoelectric effect comprise base, permanent magnet, transducing structure, transducing structure pedestal, windmill and windmill pedestal; Said permanent magnet, transducing structure pedestal and windmill pedestal are fixed on the base; Said permanent magnet is the U type, stands on the base, and open side to the right; Said transducing structure and transducing structure pedestal place in the U die cavity of permanent magnet, and the transducing structure comprises gear, magnetic, rotating shaft and stator; Said magnetic is circular, is fixed on the gear below, and all is placed in the said rotating shaft with gear, and the rotating shaft bottom is connected on the transducing structure pedestal; Said magnetic evenly is provided with several little permanent magnets along outer circumferential side, separates through non-magnetizer between each little permanent magnet; Said stator is sleeved on the magnetic outer ring ringwise and is fixed on the transducing structure pedestal, and stator evenly is provided with some magnetic electric compound materials along annular side face; Said windmill bottom is arranged on the windmill pedestal; Install transmission gear on the said windmill shaft, said transmission gear is meshed with the gear of said transducing structure.
The further design of the utility model is that said stator is provided with a support ring, and the support ring inner ring is equipped with several partitions, between per two partitions a magnetic electric compound material is set, and each magnetic electric compound material is length direction and radially is provided with perpendicular to support ring.
The further design of the utility model is that also said magnetic electric compound material comprises two-layer magnetostriction materials layer and is clipped in the piezoelectric material layer between the two-layer magnetostriction materials layer; Said magnetostriction materials layer DOM is length direction; Said piezoelectric material layer polarised direction is a thickness direction.
The magnetic electric compound material of said stator is a plurality of, is distinguished corresponding magnetic electric compound material by the little permanent magnet that non-magnetizer separates; The quantity of the magnetic electric compound material of said stator and the little permanent magnet of magnetic is suitable.
The spacing of said adjacent partition is suitable with the width of magnetic electric compound material; The height of the length of magnetic electric compound material and partition and support ring is suitable.
Said magnetic is hollow columnar, and the little permanent magnet pole of outer circumferential side is provided with vertically, and adjacent little permanent magnet pole is opposite.
The upper and lower end face of said magnetic is respectively equipped with a non-magnetic conduction disk.
Said windmill pedestal is the right cylinder of hollow; Said windmill shaft is sleeved in the said windmill pedestal.
Said permanent magnet is a Nd-Fe-B permanent magnet.
The utility model is compared prior art and is had the following advantages:
The utility model adopts Nd-Fe-B permanent magnet to produce bigger direct current biasing magnetic field, and the magnetostriction materials layer in the magnetic electric compound material is magnetized along its length.Little permanent magnet rotates and produces alternating magnetic field; Make magnetic field generating period property variation through magnetic electric compound material in the stator; Bring out magnetostriction materials layer generation strain, be delivered to piezoelectric material layer, produce alternating electric field output by piezoelectric effect; Be connected to accumulator or big accumulate electric capacity through lead-in wire, reach the purpose of wind collecting and storage; The frequency of the frequency of the alternating electric field of output and alternating magnetic field is identical simultaneously; And the rotating speed of the frequency of alternating magnetic field and the transmission gear that drives little permanent magnet rotation is directly proportional; The rotating speed of transmission gear is directly proportional with wind speed again, therefore can realize the measurement of wind speed through the frequency of measuring the alternating electric field of exporting.
Description of drawings
Fig. 1 is the structural representation of wind collecting of the present invention and wind speed measuring device.
Fig. 2 is the structural representation of Fig. 1 middle gear and magnetic.
Fig. 3 is the perspective view of stator among Fig. 1.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the structural representation of magnetic electric compound material among Fig. 3 and Fig. 4.
Among the figure, 1-base, 2-transducing structure pedestal, 3-windmill pedestal, 4-permanent magnet; The 5-windmill, 6-transmission gear, 7-gear, 8-rotating shaft, the little permanent magnet of 9-; The 10-non-magnetizer, 11-magnetic electric compound material, 12-support ring, 13-partition, 14-magnetostriction materials layer; The 15-piezoelectric material layer, 16-lead-in wire, 17-magnetic, 18-windmill shaft, 19-stator.
Embodiment
Below in conjunction with embodiment the utility model wind collecting and wind speed measuring device are elaborated.
Referring to Fig. 1, the utility model wind collecting and wind speed measuring device comprise base 1, transducing structure pedestal 2, transducing structure, windmill pedestal 3, permanent magnet 4, windmill 5, windmill shaft 18 and transmission gear 6.Permanent magnet 4 adopts Nd-Fe-B permanent magnet, is the U type, and opening is installed in to the right on the base 1.Transducing structure pedestal 2 is fixed on the base 1, in the U type groove of permanent magnet 4, rotating shaft 8 is arranged on the transducing structure pedestal 2 through bearing.The transducing structure places on the transducing structure pedestal 2, and is in the bigger direct current biasing magnetic field of permanent magnet 4 generations.The transducing structure comprises gear 7, magnetic 17, rotating shaft 8 and stator 19.Stator 19 comprises some magnetic electric compound materials 11 and support ring 12.Magnetic 17 is circular, is fixed on the below of gear 7, and with gear 7 coaxial being enclosed within the rotating shaft 8, again stator 19 is fixedly set in the outer ring of magnetic 17, promptly be fixed on support ring 12 on the transducing structure pedestal 2.Windmill pedestal 3 is right cylinders of hollow, and the windmill shaft 18 that will have the windmill 5 of three blades passes through Bearing Installation in windmill pedestal 3.Transmission gear 6 fixed covers rotate with windmill on the windmill shaft 18 of windmill 5, and for slow-roll stabilization, windmill pedestal 3 also plays the effect of supporting transmission gear 6.Transmission gear 6 is meshed with gear 7 in the transducing structure.
Referring to Fig. 2, magnetic 17 is hollow columnar, and little permanent magnet 9 magnetic poles of outer circumferential side are along the axial setting of magnetic, and adjacent little permanent magnet pole is opposite, promptly a N utmost point outwardly, another S utmost point is outwardly.Be separated by through non-magnetizer 10 between each little permanent magnet 9, and the S utmost point between the adjacent little permanent magnet and N utmost point anti-phase setting.Windmill pedestal 3 exceeds a part than transducing structure pedestal 2, is meshed to guarantee transmission gear 6 and gear 7.
In conjunction with Fig. 3 and Fig. 4, support ring 12 is the tubular structure of hollow, and height is identical with the height of magnetic 17.Support ring 12 inwalls are along the even a plurality of partitions 13 that distribute of short transverse, and adjacent partition 13 is suitable with its interior magnetic electric compound material 11 with the space size that support ring 12 inwalls surround, and magnetic electric compound material 11 inserts wherein, is fixed on the support ring 12 through partition.Support ring 12 is placed in the outside of magnetic 17.Leave the space a little between magnetic 17 and the stator 19.Permanent magnet 4 provides bigger direct current biasing magnetic field for magnetic electric compound material 11; So the desktop of transducing structure pedestal 2 can be selected thin permeability magnetic material; Magnetostriction materials in the magnetic electric compound material 11 are magnetized along its length; Can select just bias magnetic field size according to the magneto-electric coupled characteristic of used magnetoelectric material, set the size and the size of Nd-Fe-B permanent magnet 4.
Referring to Fig. 5, because the magnetoelectric effect of three layers of magnetic electric compound material greater than bilayer, so magnetic electric compound material 11 uses three layers of magnetic electric compound material of strip, promptly is the sandwich structure in two-layer magnetostriction materials therebetween one layer of piezo-electric material.Two-layer up and down is magnetostriction materials layer 14 (or magnetostriction phase), and the middle layer is piezoelectric material layer 15 (or piezoelectric phase).Tb-Dy-Fe alloy (Terfenol-D, Tb that the general selection of magnetostriction materials has the giant magnetostrictive driver effect
1-xDy
xFe
2-y).The polycrystalline Tb-Dy-Fe alloy of oriented growth, its grain orientation along its length, promptly magnetic domain is as far as possible alongst arranged.Apply direct current biasing magnetic field when along its length, its magnetostriction can reach 1500 ~ 2000ppm.It also can be the magnetostriction compound substance that Tb-Dy-Fe alloy and polymkeric substance (PVDF, Kynoar) form.Magnetostriction materials layer 14 magnetizes along its length.Piezoelectric can be to have lead zirconate titanate (PZT) series piezoelectric ceramic, lead magnesio-niobate series piezoelectric ceramic or the barium titanate series piezoelectric ceramics of suppressing electrical effect, or the piezo-electricity composite material of piezoelectric ceramics and polymkeric substance (PVDF, Kynoar) formation.Piezoelectric material layer 15 is along thickness direction polarization, plates electrode at the upper and lower major surfaces of piezoelectric material layer 15, and the length of piezoelectric material layer 15 is slightly larger than magnetostriction materials layer 14, in the welding of the elongation position of piezoelectric material layer 15, goes between 16.With epoxy adhesive magnetostriction materials layer 14 and piezoelectric material layer 15 are bonded together, constitute sandwich structure stratiform magnetic electric compound material 11.It is 10mm or littler that the size of magnetostriction materials layer 14 and piezoelectric material layer 15 can be selected length, and width is 4 ~ 5mm, and every layer thickness can equate that size is 0.5mm ~ 1mm.Arrow among Fig. 5 representes that magnetostriction materials layer 14 magnetizes along its length, and piezoelectric material layer 15 polarizes along thickness direction.
When windmill shaft 18 drive transmission gears 6 rotations of windmill 5, thereby driven gear 78 rotates around the shaft, and the little permanent magnet 9 on the magnetic 17 rotates thereupon; Then pass through the variation of the magnetic field generating period property of each magnetic electric compound material 11; Its effect is equal to an alternating magnetic field, via magnetoelectric effect, generates alternating electric field in the magnetic electric compound material 11; 16 it is connected with energy storage device through going between, realizes wind energy, the conversion of electric energy and the storage of wind energy.Measure the frequency of the alternating electric field of some magnetic electric compound material 11 outputs, convert corresponding wind speed size again to, can realize the measurement of wind speed.The non-magnet material disk of processing by non-magnet material can be stained with in the upper and lower both sides of magnetic 17, the influence of magnetic field that permanent magnet 4 produced can be avoided like this little permanent magnet 9.For magnetic electric compound material 11 bigger direct current biasing magnetic field is provided simultaneously.
Claims (9)
1. wind collecting and wind speed measuring device based on a magnetoelectric effect, it is characterized in that: said device comprises base, permanent magnet, transducing structure, transducing structure pedestal, windmill and windmill pedestal; Said permanent magnet, transducing structure pedestal and windmill pedestal are fixed on the base; Said permanent magnet is the U type, stands on the base, and open side to the right; Said transducing structure and transducing structure pedestal place in the U die cavity of permanent magnet; Said transducing structure comprises gear, magnetic, rotating shaft and stator; Said magnetic is circular, is fixed on the gear below, and all is placed in the said rotating shaft with gear; Said rotating shaft bottom is connected on the transducing structure pedestal; Said magnetic evenly is provided with several little permanent magnets along outer circumferential side, separates through non-magnetizer between each little permanent magnet; Said stator is sleeved on the magnetic outer ring ringwise and is fixed on the transducing structure pedestal; Said stator evenly is provided with some magnetic electric compound materials along annular side face; Said windmill bottom is arranged on the windmill pedestal; Install transmission gear on the said windmill shaft, said transmission gear is meshed with the gear of said transducing structure.
2. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1; It is characterized in that: said stator is provided with a support ring; The support ring inner ring is equipped with several partitions; Between per two partitions a said magnetic electric compound material is set, each magnetic electric compound material is length direction and radially is provided with perpendicular to support ring.
3. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1 is characterized in that: said magnetic electric compound material comprises two-layer magnetostriction materials layer and is clipped in the piezoelectric material layer between the two-layer magnetostriction materials layer; Said magnetostriction materials layer DOM is length direction; Said piezoelectric material layer polarised direction is a thickness direction.
4. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1 is characterized in that: the magnetic electric compound material of said stator is a plurality of, is distinguished corresponding magnetic electric compound material by the little permanent magnet that non-magnetizer separates; The quantity of the magnetic electric compound material of said stator and the little permanent magnet of magnetic is suitable.
5. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1 is characterized in that: the spacing of said adjacent partition is suitable with the width of magnetic electric compound material; The height of the length of magnetic electric compound material and partition and support ring is suitable.
6. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1, it is characterized in that: said magnetic is hollow columnar, and the little permanent magnet pole of outer circumferential side is provided with vertically, and adjacent little permanent magnet pole is opposite.
7. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1 is characterized in that: the upper and lower end face of said magnetic is respectively equipped with a non-magnetic conduction disk.
8. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1 is characterized in that: said windmill pedestal is the right cylinder of hollow; Said windmill shaft is sleeved in the said windmill pedestal.
9. wind collecting and wind speed measuring device based on magnetoelectric effect according to claim 1 is characterized in that: said permanent magnet is a Nd-Fe-B permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200921417U CN202443031U (en) | 2012-03-13 | 2012-03-13 | Wind power collection and wind speed measurement device based on magnetoelectric effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200921417U CN202443031U (en) | 2012-03-13 | 2012-03-13 | Wind power collection and wind speed measurement device based on magnetoelectric effect |
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| Publication Number | Publication Date |
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| CN202443031U true CN202443031U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200921417U Expired - Fee Related CN202443031U (en) | 2012-03-13 | 2012-03-13 | Wind power collection and wind speed measurement device based on magnetoelectric effect |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015059422A1 (en) | 2013-10-25 | 2015-04-30 | Institut Polytechnique De Grenoble | Power generator |
| CN106894952A (en) * | 2017-03-18 | 2017-06-27 | 南昌工程学院 | A kind of magnetostriction type piezoelectricity breeze generating set |
| CN109863679A (en) * | 2016-09-27 | 2019-06-07 | 内尔贝公司 | For the translational motion of main body to be transformed into the generator of accumulation |
-
2012
- 2012-03-13 CN CN2012200921417U patent/CN202443031U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015059422A1 (en) | 2013-10-25 | 2015-04-30 | Institut Polytechnique De Grenoble | Power generator |
| FR3012701A1 (en) * | 2013-10-25 | 2015-05-01 | Inst Polytechnique Grenoble | ELECTRICITY GENERATOR |
| US9935255B2 (en) | 2013-10-25 | 2018-04-03 | Institut Polytechnique De Grenoble | Power generator |
| CN109863679A (en) * | 2016-09-27 | 2019-06-07 | 内尔贝公司 | For the translational motion of main body to be transformed into the generator of accumulation |
| JP2019535227A (en) * | 2016-09-27 | 2019-12-05 | エナビー | A generator that converts the translational motion of an object into charge accumulation |
| CN106894952A (en) * | 2017-03-18 | 2017-06-27 | 南昌工程学院 | A kind of magnetostriction type piezoelectricity breeze generating set |
| CN106894952B (en) * | 2017-03-18 | 2023-07-25 | 南昌工程学院 | Magnetostrictive piezoelectric breeze power generation device |
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| Date | Code | Title | Description |
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| 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: 20120919 Termination date: 20140313 |