CN101728882A - Permanent magnet generator rotor - Google Patents
Permanent magnet generator rotor Download PDFInfo
- Publication number
- CN101728882A CN101728882A CN200810230459A CN200810230459A CN101728882A CN 101728882 A CN101728882 A CN 101728882A CN 200810230459 A CN200810230459 A CN 200810230459A CN 200810230459 A CN200810230459 A CN 200810230459A CN 101728882 A CN101728882 A CN 101728882A
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- China
- Prior art keywords
- permanent magnet
- magnet steel
- permanent
- iron core
- generator rotor
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Abstract
The invention discloses a permanent magnet generator rotor comprising a shaft, an iron core (2) and the permanent magnet steel (3). The iron core (2) is made by punching a ring-shaped silicon steel sheet and is stacked into the cylinder shape; the top surface and the bottom surface of the iron core (2) are pressed by pressing plates (1) and (4); the matched parts of the middle parts of the pressing plates (1) and (4) and a rotating shaft are welded and fixed together; a plurality of permanent magnet steel (3) whose poles are arranged alternatively are fixed on the outer circumference of the iron core (2) uniformly; the permanent magnet steel (3) is shaped like both a trapezoid and a rectangle; after the poles of the permanent magnet steel (3) are positioned, the periphery of the permanent magnet steel (3) is sealed with epoxy resin. The permanent magnet generator rotor is integrally in the shape of a cylinder, uses less permanent magnet steel, has good magnetic performance and high specific power and a lighter than the permanent magnet generator rotor having the same power, keeps uniform gap (air gap) with the inner cavity of a stator, can be easily and reliably processed and mounted, can output larger power than the permanent magnet generator rotor having the same weight and is suitable for the wind power generator which is mounted on a pole.
Description
Technical field
The present invention relates to a kind of rotor of permanent-magnetic power generator, particularly a kind of rotor of permanent-magnetic power generator of hollow-core construction.
Background technology
Rotor of permanent-magnetic power generator is generally solid construction, as inner permanent magnetic type (IPM), surperficial permanent-magnet type (SPM) and inserted permanent-magnet type (ISPM) etc.The permanent magnet generator weight of solid construction rotor is all bigger, and specific power is less relatively.According to the definition of specific power (w/kg), improve specific power, must weight reduction.In recent years, the rotor of permanent-magnetic power generator that hollow-core construction occurred.Disclose a kind of rotor of permanent-magnetic power generator as Chinese patent 96227429.1, a multiedge cylinder that the centre is porose has been arranged in the outside of rotating shaft, on the multiedge cylinder outer cylinder, be bonded with strip permanent magnet.The rotor of permanent-magnetic power generator of this hollow-core construction, though weight alleviates significantly, air gap flux density is inhomogeneous, occurs " sweeping thorax " in the running easily or reduces power output.
Summary of the invention
The present invention aims to provide a kind of not only weight saving, and with stator in the gap (air gap) of thorax even, the rotor of permanent-magnetic power generator of the hollow-core construction that specific power is high.
Rotor of permanent-magnetic power generator iron core of the present invention comprises rotating shaft, iron core and permanent-magnet steel, iron core laminates into cylindric by the annular punching silicon-steel, top and bottom are tight by the pressing plate handle, fixing in the middle of the pressing plate with the welding of rotating shaft cooperation place, the iron core excircle evenly is fixed with the alternate permanent-magnet steel of several alternating polarities, being shaped as of permanent-magnet steel trapezoidally combines with rectangle, and along the sealing of permanent-magnet steel periphery, rotor integral body is cylindrical by epoxy resin for back, magnetic pole location.
Rotor of permanent-magnetic power generator provided by the invention, the magnet steel consumption is few, magnetic property is good, not only weight saving, and with stator in the gap (air gap) of thorax even, processing, install simple and reliable, the specific power height.Can export bigger power under identical unit weight, weight is the lightest under equal-wattage.Be particularly suitable for being contained in the wind-driven generator on the tower bar.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of rotor of permanent-magnetic power generator 16 utmost point embodiment of the present invention;
Fig. 2 is a plan structure schematic diagram embodiment illustrated in fig. 1.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Among the figure: 1, top board 2, iron core 3, permanent-magnet steel 4, lower platen 5, bolt
As shown in the figure, rotor of permanent-magnetic power generator of the present invention comprises rotating shaft, iron core 2 and permanent-magnet steel 3, iron core 2 is overrided to form by the annular punching silicon-steel, tight by top board 1 and lower platen 4 by 5 of 4 through bolts, fixing with the welding of rotating shaft cooperation place in the middle of the pressing plate, iron core 2 excircles evenly are fixed with 16 permanent-magnet steels 3 that alternating polarity is alternate, and being shaped as of permanent-magnet steel 3 trapezoidally combines with rectangle, back, magnetic pole location along permanent-magnet steel 3 peripheral sealing, forms the cylindrical permanent-magnet rotor by epoxy resin.Permanent magnetic material is a neodymium iron boron.This rotor of permanent-magnetic power generator magnet steel consumption is few, and magnetic property is good.
Claims (1)
1. rotor of permanent-magnetic power generator, comprise rotating shaft, iron core (2) and permanent-magnet steel (3), it is characterized in that: iron core (2) laminates into cylindric by the annular punching silicon-steel, top and bottom by pressing plate (1,4) tightly, fixing in the middle of the pressing plate (1,4) with the welding of rotating shaft cooperation place, iron core (2) excircle evenly is fixed with the alternate hydromagnetic steel (3) of several alternating polarities, being shaped as of permanent-magnet steel (3) trapezoidally combines with rectangle, along the peripheral sealing of permanent-magnet steel (3), rotor integral body is cylindrical by epoxy resin for back, magnetic pole location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230459A CN101728882A (en) | 2008-10-17 | 2008-10-17 | Permanent magnet generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230459A CN101728882A (en) | 2008-10-17 | 2008-10-17 | Permanent magnet generator rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101728882A true CN101728882A (en) | 2010-06-09 |
Family
ID=42449304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810230459A Pending CN101728882A (en) | 2008-10-17 | 2008-10-17 | Permanent magnet generator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101728882A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012012978A1 (en) * | 2010-07-26 | 2012-02-02 | 上海万德风力发电股份有限公司 | Magnetic steel for permanent-magnet direct-driven wind mill generator |
| CN102447328A (en) * | 2010-09-30 | 2012-05-09 | 河南森源电气股份有限公司 | Permanent magnetic wind generator system capable of obtaining maximum output power of wind rotor |
| CN103683698A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Production method of combined magnetic pole radial permanent magnet constant-voltage generator |
| CN108736608A (en) * | 2018-07-04 | 2018-11-02 | 中国电子科技集团公司第二十研究所 | The rotor structure and its manufacturing method of Halbach motors |
-
2008
- 2008-10-17 CN CN200810230459A patent/CN101728882A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012012978A1 (en) * | 2010-07-26 | 2012-02-02 | 上海万德风力发电股份有限公司 | Magnetic steel for permanent-magnet direct-driven wind mill generator |
| CN102447328A (en) * | 2010-09-30 | 2012-05-09 | 河南森源电气股份有限公司 | Permanent magnetic wind generator system capable of obtaining maximum output power of wind rotor |
| CN103683698A (en) * | 2013-12-05 | 2014-03-26 | 张学义 | Production method of combined magnetic pole radial permanent magnet constant-voltage generator |
| CN108736608A (en) * | 2018-07-04 | 2018-11-02 | 中国电子科技集团公司第二十研究所 | The rotor structure and its manufacturing method of Halbach motors |
| CN108736608B (en) * | 2018-07-04 | 2024-04-12 | 中国电子科技集团公司第二十一研究所 | Rotor structure of Halbach motor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100609 |