CN201797431U - Linear generator suitable for low-speed waves - Google Patents
Linear generator suitable for low-speed waves Download PDFInfo
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- CN201797431U CN201797431U CN2010205135676U CN201020513567U CN201797431U CN 201797431 U CN201797431 U CN 201797431U CN 2010205135676 U CN2010205135676 U CN 2010205135676U CN 201020513567 U CN201020513567 U CN 201020513567U CN 201797431 U CN201797431 U CN 201797431U
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- iron core
- permanent magnet
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Abstract
The utility model relates to a linear generator suitable for low-speed waves, and solves the defects of large volume, complicated system and low efficiency of a motor used in wave power generation by adopting the manner of compounding a linear motor with a magnet gear. The high-speed side of the traditional magnet gear is eliminated, and the combination of the magnet gear with linear motor is realized. The motor includes a motor primary stage and a motor secondary stage, wherein the motor primary stage includes a primary iron core (1), a primary winding (2) and a magnet adjusting ring (3); the magnet adjusting ring (3) is distributed between the primary winding (2) and a permanent magnet (4) and in the axial direction of a cylinder, and is fixed on the primary iron core (1), the primary winding (2) is embedded in a slot of the primary iron core (1), and the primary iron core (1) is fixed on a water bottom; the motor secondary stage includes the permanent magnet (4) and a rotor iron core (5); the permanent magnet (4) is arranged on the low-speed side of the magnet gear and is evenly adhered onto the surface of the rotor iron core (5) and in the axial direction of the cylinder, the rotor iron core (5) is fixed in a buoy (6), and the rotor iron core (5) and the buoy (6) float as a whole on a water surface (7).
Description
Technical field
The utility model relates to a kind of novel linear wave-activated generator based on the magnetic gear, adopts magnetic gear governing speed, belongs to the wave power generation technical field.
Background technology
Water body is being contained huge energy, and in today of world energy sources growing tension, wave power generation becomes the important directions of development new forms of energy.What the tradition wave power generation was adopted is electric rotating machine, and low, the poor durability of efficient when low speed becomes the key factor that the restriction wave power generation develops.In recent years, the vertical displacement up and down that Chinese scholar proposition employing linear electric motors directly utilize wave is as power, and the secondary rectilinear motion of drive motors produces electric energy, can make the raising of whole system efficient, ILS etc.But because wave motion speed is lower, traditional gear box that adopts carries out speed governing as intermediate link, and with increase motor secondary speed, and gear box increases the whole drive system volume and weight, also has problems such as noise, wearing and tearing, response time length simultaneously.If adopt the magnetic gear drive then both can governing speed, can avoid noise, wearing and tearing again, reduce the response time.Therefore, be necessary to propose a kind of novel linear electric motors device to promote the development of wave power generation.
Summary of the invention
Technical problem: the utility model is at wave power generation the deficiencies in the prior art and defective, a kind of linear electric generator that is applicable to the low speed wave is proposed, adopt the magnetic gear to replace traditional mechanical step-up gear, and magnetic gear and linear electric motors integrated, saved magnetic high-speed gear side, as the electric mover permanent magnet, made structure simpler magnetic gear low speed side, and reduced the loss of electric machine, volume and weight, improved efficient and durability.
Technical scheme: the linear electric generator of low speed wave that is applicable to of the present utility model is used for the offshore wave power generation, utilizing the heaving of the sea campaign directly to promote floating drum moves up and down, make the magnetic field that is fixed on the secondary permanent magnet generation in the floating drum see through the adjustable magnetic ring cutting and cut the elementary winding that remains static, produce induced electromotive force.Because the size that the existence of adjustable magnetic ring can be regulated magnetic field, therefore can realize being equivalent to make the effect of mover speedup, the effect of the high electromotive force of elementary winding internal induction when reaching mover low speed, with converter plant the electromotive force that produces is converted into power frequency again, just can gives user or electrical network power delivery.
The linear electric generator that is applicable to the low speed wave of the present utility model, this motor combines linear electric motors and magnetic gear, and it comprises electric motor primary, motor secondary; Electric motor primary comprises columned elementary iron core, elementary winding, adjustable magnetic ring; The adjustable magnetic ring, and is fixed on the elementary iron core to being distributed between elementary winding and the permanent magnet along columned elementary iron mandrel, and elementary winding embeds in the wire casing of elementary iron core, and elementary iron core is fixed in the bottom; Motor secondary comprises permanent magnet, mover iron core cylindraceous, and magnetic gear low speed side is permanent magnet, and it axially evenly distributes along mover iron core cylindraceous surface, and the mover iron core is fixed in the floating drum, and they do as a whole swimming on the water surface.
Described adjustable magnetic ring is to be rearranged by the central spacer that permeability magnetic material and non-magnet material are made, and wherein the magnetic inductive block material is a ferromagnetic material.
Described permanent magnet is the ring of being made by the neodymium iron boron of a plurality of radial magnetizings, and distributing vertically constitutes cylindrical shape, and evenly is attached to mover iron core surface, and the magnetizing direction of adjacent two rings is opposite, makes magnetic field vertically by Sine distribution.
When wave promotes floating drum with speed v
1Up and down during rectilinear motion, because the existence of the adjustable magnetic ring of ferromagnetic material, be fixed on the magnetic field that the permanent magnet in the floating drum produces and arrive elementary winding by the adjustable magnetic ring of axial direction.The magnetic field speed that modulates in elementary air gap is-v
2, this magnetic field and electric motor primary winding produce relative motion and send electric energy.
Beneficial effect:
(1) saved mechanical step-up gear, substituted, do not had mechanical wear, maintenance and the noise problem of gear box, improved device reliability with the magnetic gear.Situation when being specially adapted to wave low speed can realize being equivalent to the effect of motor speedup, has reduced volume, weight and the manufacturing cost of motor.
(2) saved magnetic high-speed gear side, motor and magnetic gear are combined, magnetic gear low speed side is the electric mover permanent magnet, simplifies the structure, and manufacturing process is simplified greatly.
(3) rotor permanent magnet adopts high energy product neodymium iron boron excitation, does not have slip ring and brush, need not the additional power source excitation, have simple in structure, volume little in light weight, power density is high, efficient is high and advantage such as good reliability.
(4) magnetic inductive block adopts along Cylindorical rod to the structure that is distributed between permanent magnet and elementary winding in the adjustable magnetic ring, and is fixed on the elementary iron core, and easy for installation, compact conformation has improved Mechanical Reliability.
Description of drawings
Fig. 1 is the utility model structural representation.Wherein have: elementary iron core 1, elementary winding 2, adjustable magnetic ring 3, permanent magnet 4, mover iron core 5, floating drum 6, the water surface 7.
Embodiment
Be concrete enforcement of the present utility model below, be used for further describing:
The utility model is a kind of linear electric generator that is applicable to the low speed wave, and it comprises electric motor primary, motor secondary, and electric motor primary comprises elementary iron core 1, elementary winding 2, adjustable magnetic ring 3; Adjustable magnetic ring 3, and is fixed on the elementary iron core 1 to being distributed between elementary winding 2 and the permanent magnet 4 along Cylindorical rod, and elementary winding 2 embeds in the wire casing of elementary iron core 1, and elementary iron core 1 is fixed in the bottom; Motor secondary comprises permanent magnet 4, mover iron core 5; Magnetic gear low speed side is permanent magnet 4, and to evenly being attached to mover iron core 5 surfaces, mover iron core 5 is fixed in the floating drum 6 along Cylindorical rod for it, and they do as a whole swimming on the water surface 7.
Described elementary winding 2 adopts distributed winding, to reduce the induced electromotive force harmonic component.
Described adjustable magnetic ring 3 is to be rearranged by the central spacer that permeability magnetic material and non-magnet material are made, and wherein the magnetic inductive block material is a ferromagnetic material.
Described permanent magnet 4 is rings of being made by the neodymium iron boron of a plurality of radial magnetizings, and distributing vertically constitutes cylindrical shape, and evenly is attached to mover iron core surface, and the magnetizing direction of adjacent two rings is opposite, makes magnetic field vertically by Sine distribution.Have between permanent magnet 4 and the adjustable magnetic ring 3 between air gap, adjustable magnetic ring 3 and the elementary winding 2 air gap is arranged.Permanent magnet 4 is rings of being made by the neodymium iron boron of a plurality of radial magnetizings, and distributing vertically constitutes cylindrical shape, and the magnetizing direction of adjacent two rings is opposite, makes magnetic field vertically by Sine distribution.
Basic principle of the present invention is the space magnetic field modulation principle of adjustable magnetic ring, utilizes space harmonics to transmit magnetic field and energy, and the magnetic circuit form of motor is that cylinder ring is to magnetic circuit.Magnetic flux is produced by primary permanent magnet body 4, the radial air gap that passes between permanent magnet 4 and the adjustable magnetic ring 3 arrives adjustable magnetic ring 3, radial air gap between adjustable magnetic ring 3 and elementary winding arrives the tooth portion of elementary winding, radially gets back to rotor permanent magnet 4 through adjustable magnetic ring 3 again and constitutes the loop.
When wave promotes floating drum with speed v
1When moving up and down, be fixed on the magnetic field process adjustable magnetic ring modulating action that the permanent magnet in the floating drum produces, produce the modulating wave magnetic field along the cylinder axial translation in the close air gap of elementary winding, its speed is-v
2, this magnetic field and electric motor primary winding produce relative motion, and cutting produces induced electromotive force and sends electric energy.
Claims (4)
1. a linear electric generator that is applicable to the low speed wave is characterized in that this motor combines linear electric motors and magnetic gear, and it comprises electric motor primary, motor secondary; Electric motor primary comprises columned elementary iron core (1), elementary winding (2), adjustable magnetic ring (3); Adjustable magnetic ring (3), and is fixed on the elementary iron core (1) between elementary winding (2) and permanent magnet (4) along columned elementary iron core (1) axial distribution, and elementary winding (2) embeds in the wire casing of elementary iron core (1), and elementary iron core (1) is fixed in the bottom; Motor secondary comprises permanent magnet (4), mover iron core cylindraceous (5), magnetic gear low speed side is permanent magnet (4), it axially evenly distributes along mover iron core cylindraceous (5) surface, and mover iron core (5) is fixed in the floating drum (6), and they do as a whole swimming on the water surface (7).
2. the linear electric generator that is applicable to the low speed wave according to claim 1 is characterized in that having between air gap, adjustable magnetic ring (3) and the elementary winding (2) between permanent magnet (4) and the adjustable magnetic ring (3) air gap is arranged.
3. the linear electric generator that is applicable to the low speed wave according to claim 1 is characterized in that adjustable magnetic ring (3) is to be rearranged by the central spacer that permeability magnetic material and non-magnet material are made, and wherein the magnetic inductive block material is a ferromagnetic material.
4. the linear electric generator that is applicable to the low speed wave according to claim 1, it is characterized in that permanent magnet (4) is the ring of being made by the neodymium iron boron of a plurality of radial magnetizings, distributing vertically constitutes cylindrical shape, and the magnetizing direction of adjacent two rings is opposite, makes magnetic field vertically by Sine distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205135676U CN201797431U (en) | 2010-08-31 | 2010-08-31 | Linear generator suitable for low-speed waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205135676U CN201797431U (en) | 2010-08-31 | 2010-08-31 | Linear generator suitable for low-speed waves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201797431U true CN201797431U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205135676U Expired - Fee Related CN201797431U (en) | 2010-08-31 | 2010-08-31 | Linear generator suitable for low-speed waves |
Country Status (1)
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| CN (1) | CN201797431U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497133A (en) * | 2011-11-25 | 2012-06-13 | 河北工业大学 | Electromagnetic vibration generating device of permanent magnet and application thereof in vibration detection system |
| CN102570770A (en) * | 2012-01-17 | 2012-07-11 | 东南大学 | Low-speed high-torque permanent-magnet cursor linear wave generator |
| RU2489301C1 (en) * | 2012-04-06 | 2013-08-10 | Общество с ограниченной ответственностью "Научно-технический центр "Микротурбинные технологии" (ООО "НТЦ "МТТ") | Navigation buoy (versions) |
| CN105932854A (en) * | 2016-04-28 | 2016-09-07 | 中国科学院电工研究所 | Linear generator primary |
| CN106394157A (en) * | 2016-10-17 | 2017-02-15 | 江苏大学 | Electromagnetic suspension vibration isolation and energy feedback coordinating control method |
| CN108306479A (en) * | 2018-01-22 | 2018-07-20 | 南京理工大学 | Armature and permanent magnetism yoke sports type permanent-magnetism linear motor and its operation method simultaneously |
-
2010
- 2010-08-31 CN CN2010205135676U patent/CN201797431U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497133A (en) * | 2011-11-25 | 2012-06-13 | 河北工业大学 | Electromagnetic vibration generating device of permanent magnet and application thereof in vibration detection system |
| CN102497133B (en) * | 2011-11-25 | 2014-09-17 | 河北工业大学 | Electromagnetic vibration generating device of permanent magnet and application thereof in vibration detection system |
| CN102570770A (en) * | 2012-01-17 | 2012-07-11 | 东南大学 | Low-speed high-torque permanent-magnet cursor linear wave generator |
| RU2489301C1 (en) * | 2012-04-06 | 2013-08-10 | Общество с ограниченной ответственностью "Научно-технический центр "Микротурбинные технологии" (ООО "НТЦ "МТТ") | Navigation buoy (versions) |
| CN105932854A (en) * | 2016-04-28 | 2016-09-07 | 中国科学院电工研究所 | Linear generator primary |
| CN105932854B (en) * | 2016-04-28 | 2018-03-13 | 中国科学院电工研究所 | A kind of linear electric generator is primary |
| CN106394157A (en) * | 2016-10-17 | 2017-02-15 | 江苏大学 | Electromagnetic suspension vibration isolation and energy feedback coordinating control method |
| CN106394157B (en) * | 2016-10-17 | 2019-04-02 | 江苏大学 | A kind of control method for coordinating of electromagnetic suspension vibration isolation and energy regenerative |
| CN108306479A (en) * | 2018-01-22 | 2018-07-20 | 南京理工大学 | Armature and permanent magnetism yoke sports type permanent-magnetism linear motor and its operation method simultaneously |
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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: 20110413 Termination date: 20130831 |