CN203352319U - Rare earth permanent magnetism aerogenerator - Google Patents

Rare earth permanent magnetism aerogenerator Download PDF

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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
Authority
CN
China
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
Application number
CN 201320304444
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Chinese (zh)
Inventor
王琼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Yuefeng Renewable Energy Co Ltd
Original Assignee
Shanghai Yuefeng Renewable Energy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Yuefeng Renewable Energy Co Ltd filed Critical Shanghai Yuefeng Renewable Energy Co Ltd
Priority to CN 201320304444 priority Critical patent/CN203352319U/en
Application granted granted Critical
Publication of CN203352319U publication Critical patent/CN203352319U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

A kind of rare earth permanent magnet wind-driven generator
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.
CN 201320304444 2013-05-29 2013-05-29 Rare earth permanent magnetism aerogenerator Expired - Fee Related CN203352319U (en)

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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111042992A (en) * 2019-12-27 2020-04-21 国家电网有限公司 Generator installation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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