CN201699566U - Permanent magnet linear generator - Google Patents
Permanent magnet linear generator Download PDFInfo
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- CN201699566U CN201699566U CN2010201637141U CN201020163714U CN201699566U CN 201699566 U CN201699566 U CN 201699566U CN 2010201637141 U CN2010201637141 U CN 2010201637141U CN 201020163714 U CN201020163714 U CN 201020163714U CN 201699566 U CN201699566 U CN 201699566U
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- permanent magnet
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- mover
- stator core
- generator
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Abstract
The utility model relates to a permanent magnet linear generator, which comprises a stator core, a winding embedded into a stator core groove, a permanent magnet, and a rotor arranged in the middle of the stator core, wherein the rotor consists of a rotor core and nonmagnetic materials arranged in a rotor core groove, the stator core is fixed on a coast platform by a motor shell, the rotor core is connected with a buoy via a transmission rod to make the buoy positioned at the point with a distance of 0.4-0.6 m away from the seal level in a floating state. Due to the effect of the sea wave on the buoy, the buoy drives the rotor core to reciprocate up and down via the transmission rod, the magnetic flux passing through the winding coil changes periodically at two adjacent positions due to the change of magnetic resistance of the return circuit, and induced potential changing periodically is generated in the coil. In the utility model, the conventional rotating generator is replaced by the permanent magnet linear generator, the mechanism of the generator is simplified, mechanical friction loss is reduced, the permanent magnet is arranged on the stator to improve the corrosion resistance of the motor, and the size and the cost of the generator are reduced, which is conducive to the further development of sea wave energy.
Description
Technical field: the utility model relates to electrical generator fields, specifically refers to a kind of device that is used for the wave energy of wave is converted to electric energy.
Background technology: as the oceanic energy of one of main regenerative resource, obtained very great development at present, under the support of relevant high-tech reinforcement, the oceanic energy application technology reaches its maturity, for the mankind have showed fine prospect at abundant development and utilization oceanic energy of new century.Ocean wave energy is called for short wave energy, and this is a kind of inexhaustible pollution-free regenerative resource.According to measuring and calculating, the electric energy that ocean wave is contained on the earth can reach 5000GW.21 century will be human comprehensive century of research, development and utilization ocean in depth.China is ocean big country, and from the Bohai Sea, the Huanghai Sea, the East Sea be to the South Sea, the gross area surpasses 4.7 * 10
6Km
2, also having more than 7000 island, the seashore line length surpasses 18000km.According to relevant department's observation, the wave energy density in China marine site is about 2～5KW/m
2, visible China can utilize wave energy very abundant.Ocean wave energy converts to after the electric energy, can provide electric power to the soldier of PLA on Marine Navigating Light, coastal resident, islander or guard island, can also realize generating electricity by way of merging two or more grid systems on a large scale.
Motor permanent magnet at present commonly used is to be placed on the mover, has improved anticorrosion difficulty to permanent magnet in the generating of seashore place like this; The a large amount of permanent magnet of designing requirement of long stator in next linear electric motors, the cost that integrates motor like this is very big.For volume and the cost that reduces motor, increase the useful life of motor, the conversion of more effective realization energy, invention novel wave permanent magnet linear generator just becomes the emphasis of research.
Summary of the invention:
Goal of the invention: the utility model provides a kind of permanent magnet linear generator, and purpose is to adapt to the requirement of seawave power generation, when effectively realizing that wave energy with wave is converted to electric energy, reduces motor cost and increases motor useful life.
Technical scheme: the utility model is implemented by the following technical programs:
A kind of permanent magnet linear generator, comprise stator core, embed winding and permanent magnet in the stator coring groove, it is characterized in that: described generator also comprises the mover that places stator core middle, mover is made up of mover core and non-magnet material, and wherein non-magnet material is embedded in the mover core groove; Stator core is fixed on by motor housing on the platform of seashore, and mover core is connected with floating drum by passing bar, makes floating drum be floating state and is positioned at the place apart from sea level 0.4-0.6m.
The air gap that 1mm is arranged between described stator core and the mover core.
Described permanent magnet is made up of the rare earth permanent-magnetic material neodymium iron boron, and the magnetizing direction of adjacent permanent magnet is opposite.
Described stator core and mover core are made by silicon steel sheet.
The tooth pitch of described mover core and slot pitch equate that the slot pitch of stator core equates with the slot pitch of mover core.
Described permanent magnet and winding are arranged along the direction perpendicular to mover core, and the magnetizing direction of permanent magnet parallels with mover core.
Described permanent magnet and winding are arranged along the direction that is parallel to mover core, and the magnetizing direction and the mover core of permanent magnet are perpendicular.
Advantage and effect: the present invention replaces traditional rotary generator with permanent-magnetism linear motor, and the mechanism of having simplified generator meets the characteristics of ocean wave motion, reduces the mechanical friction loss simultaneously; Permanent magnet is placed in the antiseptic power that has improved motor on the stator; The volume and the cost of generator have been reduced.Help the further exploitation of wave energy.
Description of drawings:
Fig. 1 is the conventional electric generators structural representation;
Fig. 2 is first kind of structural representation of the utility model;
Fig. 3 is the magnetic circuit loop of first kind of structural representation of the utility model;
Fig. 4 is the another kind of magnetic circuit loop of first kind of structural representation of the utility model;
Fig. 5 is second kind of structural representation of the utility model;
Fig. 6 is the magnetic circuit loop of second kind of structural representation of the utility model;
Fig. 7 is the another kind of magnetic circuit loop of second kind of structural representation of the utility model;
Description of reference numerals:
1, stator core 2, winding 3, permanent magnet 4, mover core 5, biography bar 6, floating drum 7, non-magnet material.
Embodiment:
Below in conjunction with accompanying drawing the utility model is specifically described:
Fig. 1 is the conventional electric generators structural representation, and as shown in the figure, the permanent magnet 3 of generator is arranged in non-magnetizer material 7 both sides in the prior art, and stator core 1 is positioned at permanent magnet 3 both sides, and winding 2 is installed in the groove of stator core 1.Adopting this traditional structure in the generating of seashore place, at first is the preservative treatment difficulty that has increased permanent magnet 3; Next is a large amount of permanent magnet 3 of the designing requirement of long stator in linear electric motors, integrates the cost that has strengthened generator like this.
Fig. 2 is first kind of structural representation of the present utility model, as shown in the figure, mover core 4 and non-magnet material 7 are formed mover, wherein non-magnet material 7 is installed in the groove of mover core 4, the tooth pitch of mover core 4 and slot pitch equate, mover core 4 places in the middle of the stator core 1, and mover core 4 and stator core 1 are made by silicon steel sheet, and the air gap of 1mm is arranged between mover core 4 and the stator core 1; Winding 2 and permanent magnet 3 are installed in the groove of stator core 1, and the distance between mover core 4 grooves is identical with distance between stator core 1 groove, and the grooved of the grooved of mover core 4 and stator core 1 can change according to the needs of actual conditions; Permanent magnet 3 is made up of the rare earth permanent-magnetic material neodymium iron boron, and the magnetizing direction of adjacent permanent magnet 3 is opposite; Winding 2 and permanent magnet 3 are arranged along the direction perpendicular to mover core 4, and winding 2 is positioned near mover core 4 one sides, and the magnetizing direction of permanent magnet 3 parallels with mover core 4.
Fig. 5 is second kind of structural representation of the present utility model, as shown in the figure, mover core 4 and non-magnet material 7 are formed mover, wherein non-magnet material 7 is installed in the groove of mover core 4, the tooth pitch of mover core 4 and slot pitch equate, mover core 4 places in the middle of the stator core 1, and mover core 4 and stator core 1 are made by silicon steel sheet, and the air gap of 1mm is arranged between mover core 4 and the stator core 1; Winding 2 and permanent magnet 3 are installed in the groove of stator core 1, and the distance between mover core 4 grooves is identical with distance between stator core 1 groove, and the grooved of the grooved of mover core 4 and stator core 1 can change according to the needs of actual conditions; Permanent magnet 3 is made up of the rare earth permanent-magnetic material neodymium iron boron, and the magnetizing direction of adjacent permanent magnet 3 is opposite; Winding 2 and permanent magnet 3 are arranged along the direction that is parallel to mover core 4, and the magnetizing direction of permanent magnet 3 and mover core 4 are perpendicular.
Claims (7)
1. permanent magnet linear generator, comprise stator core (1), embed winding (2) and permanent magnet (3) in stator core (1) groove, it is characterized in that: described generator also comprises the mover that places stator core (1) middle, mover is made up of mover core (4) and non-magnet material (7), and wherein non-magnet material (7) is embedded in mover core (4) groove; Stator core (1) is fixed on by motor housing on the platform of seashore, and mover core (4) is connected with floating drum (6) by passing bar (5), makes floating drum (6) be floating state and is positioned at the place apart from sea level 0.4-0.6m.
2. according to the described a kind of permanent magnet linear generator of claim 1, it is characterized in that: the air gap that 1mm is arranged between described stator core (1) and the mover core (4).
3. according to the described a kind of permanent magnet linear generator of claim 1, it is characterized in that: described permanent magnet (3) is made up of the rare earth permanent-magnetic material neodymium iron boron, and the magnetizing direction of adjacent permanent magnet (3) is opposite.
4. according to the described a kind of permanent magnet linear generator of claim 1, it is characterized in that: described stator core (1) and mover core (4) are made by silicon steel sheet.
5. according to the described a kind of permanent magnet linear generator of claim 1, it is characterized in that: the tooth pitch of described mover core (4) and slot pitch equate that the slot pitch of stator core (1) equates with the slot pitch of mover core (4).
6. according to the described a kind of permanent magnet linear generator of claim 1, it is characterized in that: described permanent magnet (3) is arranged along the direction perpendicular to mover core (4) with winding (2), and the magnetizing direction of permanent magnet (3) parallels with mover core (4).
7. according to the described a kind of permanent magnet linear generator of claim 1, it is characterized in that: described permanent magnet (3) is arranged along the direction that is parallel to mover core (4) with winding (2), and the magnetizing direction of permanent magnet (3) and mover core (4) are perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201637141U CN201699566U (en) | 2010-04-20 | 2010-04-20 | Permanent magnet linear generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201637141U CN201699566U (en) | 2010-04-20 | 2010-04-20 | Permanent magnet linear generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699566U true CN201699566U (en) | 2011-01-05 |
Family
ID=43400811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201637141U Expired - Fee Related CN201699566U (en) | 2010-04-20 | 2010-04-20 | Permanent magnet linear generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201699566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860171A (en) * | 2010-04-20 | 2010-10-13 | 沈阳工业大学 | Permanent magnet linear generator |
| CN103511170A (en) * | 2013-10-23 | 2014-01-15 | 东南大学 | Direct-driven wave power generation device |
-
2010
- 2010-04-20 CN CN2010201637141U patent/CN201699566U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860171A (en) * | 2010-04-20 | 2010-10-13 | 沈阳工业大学 | Permanent magnet linear generator |
| CN103511170A (en) * | 2013-10-23 | 2014-01-15 | 东南大学 | Direct-driven wave power generation device |
| CN103511170B (en) * | 2013-10-23 | 2016-04-06 | 东南大学 | A kind of direct-driven wave power generation device |
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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: 20110105 Termination date: 20130420 |