CN201541158U - 1.5MW permanent-magnet direct-drive wind power generator inner rotor - Google Patents
1.5MW permanent-magnet direct-drive wind power generator inner rotor Download PDFInfo
- Publication number
- CN201541158U CN201541158U CN2009202138063U CN200920213806U CN201541158U CN 201541158 U CN201541158 U CN 201541158U CN 2009202138063 U CN2009202138063 U CN 2009202138063U CN 200920213806 U CN200920213806 U CN 200920213806U CN 201541158 U CN201541158 U CN 201541158U
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- CN
- China
- Prior art keywords
- internal rotor
- magnet
- permanent magnet
- inner rotor
- magnet direct
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a 1.5MW permanent-magnet direct-drive wind power generator inner rotor, which comprises an annular inner rotor outer casing, a plurality of magnets, a plurality of insulating plates, a plurality of mounting screws and high-density glass fiber fabrics. The insulating plates are uniformly arranged on the inner rotor outer casing, a magnet mounting grooves are formed among the insulating plates and are all provided with mounting holes inside, the magnets which all rectangular are provided with center holes corresponding to the mounting holes and uniformly fixed on the inner rotor outer casing via the mounting screws, and the high-density glass fiber fabrics are covered on the magnets via epoxy glue. Compared with the prior art, the inner rotor is simple in structure and fine in processability, reduces cost by 10% compared with that of the conventional method and obtains fine effect.
Description
Technical field
The utility model relates to permanent magnet direct-driving aerogenerator, particularly relates to a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor.
Background technology
The high-quality permanent magnet material of magneto is many alloy mixtures body mostly, and for example most popular Nd-Fe-Bo permanent magnet material is exactly the mixture of metallic iron, rare earth neodymium and nonmetal boron.The permanent magnet manufacturing generally all is to make various lattens earlier, will make mixture by design proportion behind the various material fragmentations again, and then presses design shape and size compression moulding.Also need carry out high temperature sintering and heat treatment after the permanent magnet compression moulding that magneto uses, carry out surface treatment at last again.Because this permanent magnet preparation technology, the tensile strength of permanent magnet can not be done very highly.
But because the magnet steel of the magneto of internal rotor mode is to be fixed on the rotor outside or outer surface, if motor speed is higher, then centrifugal force can very big (centrifugal force F=m ω
2R), for the magnet that prevents permanent magnet by the centrifugal force fragmentation, first method is, if the permanent magnet of the magneto of internal rotor is fixing at the outer surface of internal rotor, then general the employing adds a pressure ring in the permanent magnet outside and is used for protecting magnet.Another method then is that magnet is fastened in the epitrochanterian dovetail groove of special processing, fixes with the slot wedge mode.No matter but with which kind of mode fix, its processing request is all very high, very strict.So just cause difficulty of processing big, the cost height.(the 3rd joint is seen in the traditional approach introduction).
Because the rare earth permanent magnet direct wind-driven generator mostly adopt external rotor mode to avoid the problems referred to above and design abroad, but the external rotor external diameter is big, causes generator external form superelevation, super wide at the product that China does not still have independent development.Be unfavorable for transportation and install.And the similar thin wall cylinder of rotor shapes, with inner rotor core mutually specific stiffness to differ from many.
Summary of the invention
Technical problem to be solved by this invention is exactly to provide a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor, it is characterized in that, the internal rotor shell that comprises ring-type, a plurality of magnets, a plurality of insulation boards, a plurality of mounting screws and high-density glass fiber cloth, described a plurality of insulation board evenly is located on the internal rotor shell, constitute the magnet mounting groove between insulation board and the insulation board, be equipped with installing hole in the described mounting groove, described a plurality of magnet is rectangular, be equipped with on it and the corresponding centre bore of installing hole, described a plurality of magnet evenly is fixed on the internal rotor shell by mounting screw, and described high-density glass fiber cloth is coated on outside the magnet by epoxide-resin glue.
Described mounting screw is the not magnetic stainless steel sunk screw of 1Cr18Ni9Ti.
The thickness of described high-density glass fiber cloth is 0.1mm.
Described internal rotor housing diameter is 2948mm.
Described magnet is a sintered NdFeB 42SH magnet.
Described magnet is 1872.
Compared with prior art, simple in structure, the good manufacturability of the utility model, cost reduces about 10% than traditional approach, obtains good effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor, the internal rotor shell 1 that comprises ring-type, a plurality of magnets 3, a plurality of insulation boards 5, a plurality of mounting screws 2 and high-density glass fiber cloth 4, described a plurality of insulation board 5 evenly is located on the internal rotor shell 1, constitute the magnet mounting groove between insulation board 5 and the insulation board 5, be equipped with installing hole in the described mounting groove, described a plurality of magnet 3 is rectangular, be equipped with on it and the corresponding centre bore of installing hole, described a plurality of magnet 3 evenly is fixed on the internal rotor shell 1 by mounting screw 2, and described high-density glass fiber cloth 4 is coated on outside the magnet 3 by epoxide-resin glue.
Described mounting screw is the not magnetic stainless steel sunk screw of 1Cr18Ni9Ti; The thickness of described high-density glass fiber cloth is 0.1mm; Described internal rotor housing diameter is 2948mm; Described magnet is a sintered NdFeB 42SH magnet; Described magnet is 1872.
Claims (6)
1. 5MW permanent magnet direct-driving aerogenerator internal rotor, it is characterized in that, the internal rotor shell that comprises ring-type, a plurality of magnets, a plurality of insulation boards, a plurality of mounting screws and high-density glass fiber cloth, described a plurality of insulation board evenly is located on the internal rotor shell, constitute the magnet mounting groove between insulation board and the insulation board, be equipped with installing hole in the described mounting groove, described a plurality of magnet is rectangular, be equipped with on it and the corresponding centre bore of installing hole, described a plurality of magnet evenly is fixed on the internal rotor shell by mounting screw, and described high-density glass fiber cloth is coated on outside the magnet by epoxide-resin glue.
2. a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor according to claim 1 is characterized in that, described mounting screw is the not magnetic stainless steel sunk screw of 1Cr18Ni9Ti.
3. a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor according to claim 1 and 2 is characterized in that the thickness of described high-density glass fiber cloth is 0.1mm.
4. a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor according to claim 3 is characterized in that described internal rotor housing diameter is 2948mm.
5. according to claim 1 or 4 described a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotors, it is characterized in that described magnet is a sintered NdFeB 42SH magnet.
6. a kind of 1.5MW permanent magnet direct-driving aerogenerator internal rotor according to claim 5 is characterized in that described magnet is 1872.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202138063U CN201541158U (en) | 2009-11-18 | 2009-11-18 | 1.5MW permanent-magnet direct-drive wind power generator inner rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202138063U CN201541158U (en) | 2009-11-18 | 2009-11-18 | 1.5MW permanent-magnet direct-drive wind power generator inner rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201541158U true CN201541158U (en) | 2010-08-04 |
Family
ID=42592614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202138063U Expired - Fee Related CN201541158U (en) | 2009-11-18 | 2009-11-18 | 1.5MW permanent-magnet direct-drive wind power generator inner rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201541158U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011060685A1 (en) * | 2009-11-18 | 2011-05-26 | 上海万德风力发电股份有限公司 | Manufacturing method of inner rotor for large-sized permanent magnet direct-driving wind mill generator |
| CN104753276A (en) * | 2015-03-31 | 2015-07-01 | 郑州塞恩电气有限公司 | Permanent-magnetic wind driven generator started by breeze |
| CN106357031A (en) * | 2016-04-06 | 2017-01-25 | 深圳市帅泰科技有限公司 | Motor rotor, motor applying motor rotor and method for calculating angle of motor rotor |
-
2009
- 2009-11-18 CN CN2009202138063U patent/CN201541158U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011060685A1 (en) * | 2009-11-18 | 2011-05-26 | 上海万德风力发电股份有限公司 | Manufacturing method of inner rotor for large-sized permanent magnet direct-driving wind mill generator |
| CN104753276A (en) * | 2015-03-31 | 2015-07-01 | 郑州塞恩电气有限公司 | Permanent-magnetic wind driven generator started by breeze |
| CN106357031A (en) * | 2016-04-06 | 2017-01-25 | 深圳市帅泰科技有限公司 | Motor rotor, motor applying motor rotor and method for calculating angle of motor rotor |
| CN106357031B (en) * | 2016-04-06 | 2019-05-31 | 深圳市帅泰科技有限公司 | Rotor, using the motor of the rotor and the rotor angle calculation method |
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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: 20100804 Termination date: 20171118 |