CN203352319U - Rare earth permanent magnetism aerogenerator - Google Patents
Rare earth permanent magnetism aerogenerator Download PDFInfo
- Publication number
- CN203352319U CN203352319U CN 201320304444 CN201320304444U CN203352319U CN 203352319 U CN203352319 U CN 203352319U CN 201320304444 CN201320304444 CN 201320304444 CN 201320304444 U CN201320304444 U CN 201320304444U CN 203352319 U CN203352319 U CN 203352319U
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- CN
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- Prior art keywords
- permanent magnet
- rotor
- rare earth
- stator
- dovetail groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a rare earth permanent magnetism aerogenerator. The aerogenerator comprises a housing, end covers disposed at two ends of the housing, a stator and a rotor that are disposed inside the housing. The stator utilizes double-layer winding. The periphery of the rotor is axially and uniformly provided with a plurality of dovetail slots having small upper parts and big lower parts. Each dovetail slot is provided with a plate-shaped neodymium iron boron permanent magnet in cooperation with the shape of each dovetail slot. S electrodes and N electrodes of the permanent magnets are oppositely disposed. The S and the N electrodes are fixed on the rotor through the dovetail slots. Magnetic isolation grooves are disposed among the dovetail slots. The beneficial effects are that the aerogenerator is small in size, light in weight, high in power generation efficiency, and can start under conditions of small winds. The neodymium iron boron permanent magnet is easily installed on the stator, so that installation steps are simplified.
Description
Technical field
The utility model relates to electrical generator fields, is specifically related to a kind of rare earth permanent magnet wind-driven generator.
Background technology
The existing rare earth permanent-magnetic generator advantage such as high and use cost is low due to efficiency, more and more be subject to user's favor, occupation rate of market is soaring rapidly, but in recent years, the rare earth market price is day by day surging, this makes the manufacturing cost of rare earth permanent-magnetic generator seem very high, to such an extent as to there is the part user to bear.
Existing wind-driven generator adopts ferrite permanent magnet, and the wind-driven generator of this structure not only structural volume is large, heavier, and startup is more difficult, and useful life is shorter, moreover the generating efficiency of this generator is not high, can not when gentle breeze, produce electric energy.
The utility model content
The purpose of this utility model is to provide a kind of rare earth permanent magnet wind-driven generator, by in the generator amature periphery, dovetail groove being set, and settle Nd-Fe-B permanent magnet in dovetail groove, overcome the undesirable shortcoming of existing ferrite permanent magnet generator generating effect, thereby realized the purpose of this utility model.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of rare earth permanent magnet wind-driven generator, comprise shell, be located at the end cap at shell two ends and be located at stator, the rotor in shell, wherein, stator adopts two layer winding, the periphery of rotor evenly offers some up-small and down-big dovetail grooves vertically, be provided with a tabular Nd-Fe-B permanent magnet matched with this dovetail groove shape in each dovetail groove, the S of these permanent magnets, N are extremely mutually opposed, and are fixed on rotor by dovetail groove;
Also be provided with magnet isolation tank between dovetail groove.
In a preferred embodiment of the present utility model, the quantity of dovetail groove is 10.
In a preferred embodiment of the present utility model, the cross section of magnet isolation tank is in-line.
The beneficial effects of the utility model are:
Volume, weight are little, at less wind-force, first can start, and generating efficiency is high; Nd-Fe-B permanent magnet is easy to be installed on stator, has simplified installation steps.
The accompanying drawing explanation
The sectional view of the stator that Fig. 1 is a kind of rare earth permanent magnet wind-driven generator described in the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
A kind of rare earth permanent magnet wind-driven generator described in the utility model comprises shell, is located at the end cap at shell two ends and is located at stator, the rotor 10 in shell.
Offer some dovetail grooves 11 for settling winding on the inwall of stator, and these windings adopt two layer winding.
The periphery of rotor 10 evenly offers some dovetail grooves 11 vertically, and it is up-small and down-big trapezoidal that the interface of these dovetail grooves 11 is; Be provided with a tabular Nd-Fe-B permanent magnet 12 matched with these dovetail groove 11 shapes in each dovetail groove 11, the S of these permanent magnets 12, N are extremely mutually opposed, and directly are fixed on rotor 10 by dovetail groove 11.
Also be provided with magnet isolation tank 13 between dovetail groove 11, the interface of these magnet isolation tanks 13 is in-line, for improving field waveform, reduces electromagnetism harmonic loss; In the present embodiment, the quantity of dovetail groove 11 is 10.
When assembling the utility model, Nd-Fe-B permanent magnet 12 can directly be inserted along dovetail groove 11 from the two ends of rotor 10, and now Nd-Fe-B permanent magnet 12 just is directly fixed in dovetail groove 11, has effectively simplified to install and has produced.
Because the utility model adopts Nd-Fe-B permanent magnet 12, there is higher magnetic energy product with respect to traditional ferrite permanent magnet, therefore can significantly reduce the volume and weight of whole wind-driven generator, make in the situation that less in wind, wind-driven generator also can start work, and generating efficiency significantly promotes.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a rare earth permanent magnet wind-driven generator, comprise shell, be located at the end cap at shell two ends and be located at stator, the rotor in shell, it is characterized in that, described stator adopts two layer winding, the periphery of described rotor evenly offers some up-small and down-big dovetail grooves vertically, be provided with a tabular Nd-Fe-B permanent magnet matched with this dovetail groove shape in each dovetail groove, the S of these permanent magnets, N are extremely mutually opposed, and are fixed on described rotor by dovetail groove;
Also be provided with magnet isolation tank between described dovetail groove.
2. a kind of rare earth permanent magnet wind-driven generator as claimed in claim 1, is characterized in that, the quantity of described dovetail groove is 10.
3. a kind of rare earth permanent magnet wind-driven generator as claimed in claim 1, is characterized in that, the cross section of described magnet isolation tank is in-line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320304444 CN203352319U (en) | 2013-05-29 | 2013-05-29 | Rare earth permanent magnetism aerogenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320304444 CN203352319U (en) | 2013-05-29 | 2013-05-29 | Rare earth permanent magnetism aerogenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352319U true CN203352319U (en) | 2013-12-18 |
Family
ID=49752169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320304444 Expired - Fee Related CN203352319U (en) | 2013-05-29 | 2013-05-29 | Rare earth permanent magnetism aerogenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203352319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450132A (en) * | 2018-10-19 | 2019-03-08 | 苏州源源机械设备有限公司 | A kind of small-sized wind power generator rotor arrangement |
| CN111042992A (en) * | 2019-12-27 | 2020-04-21 | 国家电网有限公司 | Generator installation device |
-
2013
- 2013-05-29 CN CN 201320304444 patent/CN203352319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450132A (en) * | 2018-10-19 | 2019-03-08 | 苏州源源机械设备有限公司 | A kind of small-sized wind power generator rotor arrangement |
| CN111042992A (en) * | 2019-12-27 | 2020-04-21 | 国家电网有限公司 | Generator installation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20180529 |