CN105071571B - A kind of special-shaped magnetic steel component structure - Google Patents
A kind of special-shaped magnetic steel component structure Download PDFInfo
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- CN105071571B CN105071571B CN201510544691.6A CN201510544691A CN105071571B CN 105071571 B CN105071571 B CN 105071571B CN 201510544691 A CN201510544691 A CN 201510544691A CN 105071571 B CN105071571 B CN 105071571B
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Abstract
The present invention relates to technical field of wind power generation, specially a kind of special-shaped magnetic steel component structure.It is big to solve installation difficulty existing for the magnet steel of current direct-drive permanent magnet wind power generator, and easily causes single magnetic pole surfaces injustice, and then the technical problem such as the air gap of motor and the uniformity of magnetic pole casting glue can be influenceed to a certain extent.Special-shaped magnetic steel component of the present invention includes：Special-shaped bottom plate, magnet steel, protecting box, rivet.Bottom plate is permeability magnetic material, has groove on bottom plate, is easy to magnet steel to position, and bottom plate bottom surface is arc form, is easy to be bonded with rotor casing；Magnet steel is NdFeB material, and easily corrosion is, it is necessary to consider anti-corrosion；Protecting box is stainless steel or plastic or other material, plays the protective effect to magnet steel；Rivet is the materials such as copper or stainless steel, plays the effect of being connected.It is used to rivet be installed between convex section and extension.The present invention uses modular structure, convenient to produce in enormous quantities；Using special-shaped bottom plate, it is easily installed.
Description
Technical field
The present invention relates to technical field of wind power generation, specially a kind of special-shaped magnetic steel component structure.
Background technology
With the fast development of wind generating technology, wind power generating set towards maximization, it is high-power the features such as constantly send out
Exhibition.Permanent magnet direct-drive technology is one of main force's trend of wind-power electricity generation, and large-scale direct wind-driven generator is its critical component, generally
It is divided into outer-rotor structure and inner rotor core.
Direct-drive permanent magnet wind power generator stator diameter dimension reaches more than 4.5m, and magnetic pole number of poles reaches 88 or more, magnetic pole
Upper mounting magnetic steel.For permanent magnet direct-driving aerogenerator, the installation protection of magnet steel is a problem.
The working environment very severe of wind-driven generator, it must be amenable to high temperature, severe cold, dust storm, humidity or even salt fog
Test.The projected life of wind-driven generator is usually 20 years.Permanent-magnetic wind driven generator selects sintered NdFeB permanent magnet at present.
Therefore, to the selection of Nd-Fe-B permanent magnetic magnetic parameter, and particularly significant is seemed to the corrosion proof requirement of magnet.
Another key factor for needing to consider for the design of permanent magnet direct-drive generator is the installation and fixation of magnet steel, generally
There are two kinds of mounting means：Surface-mount type and built-in.Patent document CN10271007A describes surface-mount type structure, and magnet steel, which is affixed on, to be turned
Its embedding is fixed using casting glue in sub- casing inner wall, outside, and the program requires higher for manufacturing, and is not easy to high-volume
Production.Patent document CN201138764Y describes built-in magnet steel protection form, and the structure is directly driven for internal rotor permanent magnet
Wind-driven generator.Above two structure serves preferable protective action to magnet steel, but also bring simultaneously production cost it is high,
The complicated, unfavorable factor such as large-scale mass production is constant.Concrete analysis is as follows.
The technical scheme of prior art one
For surface-mount type magnet steel mounting means, presently mainly magnet steel is fixed to by resin casting glue and turned
On son.
The shortcomings that prior art one
Using surface-mount type magnet steel mounting means, not only installation difficulty is big, and easily causes single magnetic pole surfaces injustice, meeting
The air gap of motor and the uniformity of magnetic pole casting glue are influenceed to a certain extent, and its manufacture efficiency is relatively low, cost is higher.
The technical scheme of prior art two
For built-in magnet steel mounting means, the silicon steel sheet lamination for folding one is rushed, will be inserted in magnet steel in lamination endoporus.
The shortcomings that prior art two
Using built-in magnet steel mounting means, it is necessary to rush folded silicon steel sheet, increase certain cost, and insertion lamination in magnet steel
Kong Shihui has certain destruction to magnet steel overcoat.
The content of the invention
The present invention is existing for the magnet steel of the current direct-drive permanent magnet wind power generator of solutionPeaceIt is big to fill difficulty, and easily causes
Single magnetic pole surfaces are uneven, and then can influence the technology such as the air gap of motor and the uniformity of magnetic pole casting glue to a certain extent and ask
A kind of topic, there is provided special-shaped magnetic steel component structure.
The present invention is realized using following technical scheme：A kind of special-shaped magnetic steel component structure, including upper surface be provided with it is recessed
The protecting box of the special-shaped bottom plate of groove, the magnet steel in groove and the bottom opening being enclosed on outside magnet steel；Special-shaped bottom plate exists
Projection parallelogram on horizontal plane, end where a pair of short side sides of special-shaped bottom plate project upwards the groove to form groove
Side, multiple convex sections are horizontally outward extended with a pair of long sides of special-shaped bottom plate；The protecting box and the one of special-shaped bottom plate
The lower end edge of two side corresponding to long side is also horizontally outward extended with and the one-to-one extension of convex section, extension
Section between convex section by rivet with mutually being fixed；The bottom surface of the special-shaped bottom plate is in be walked from a short side while to another short side
To arc surface, the arc surface and rotor case inner periphery match.
Described special-shaped magnetic steel component includes：Special-shaped bottom plate, magnet steel, protecting box, rivet.Bottom plate is permeability magnetic material, bottom plate
On have groove, be easy to magnet steel to position, bottom plate bottom surface c is arc form（As shown in Figure 3）, it is easy to be bonded with rotor case；Magnet steel is
NdFeB material, easily corrosion is, it is necessary to consider anti-corrosion；Protecting box is stainless steel or plastic or other material, plays the protection to magnet steel
Effect；Rivet is the materials such as copper or stainless steel, plays the effect of being connected.It is used to rivet be installed between convex section and extension.
During present invention installation, press strip is pre-fixed on rotor case by bolt first, accomplished fluently in advance on rotor case
Bolt hole, by magnetic steel component mounting tool by between magnet steel two row press strips of push-in, every press strip is linear structure, then by spiral shell
Bolt fastens, and forms a magnetic pole by polylith magnetic steel component, the polarity of each row magnet steel is identical, and the polarity with adjacent column is phase
Anti-, all magnetic steel component installations are formed into direct-drive permanent-magnetism rotor.
Further, when prepared by the special-shaped magnetic steel component structure, epoxy resin is first poured into protecting box, magnet steel is put
Enter in protecting box, then protecting box and bottom plate riveting are got up with rivet, form a special-shaped magnetic steel component, then special-shaped magnet steel group
Part is installed on the inner periphery of rotor case after magnetizing.
The beneficial effect that technical solution of the present invention is brought：
1）It is convenient to produce in enormous quantities using modular structure；
2）Using special-shaped bottom plate, it is easily installed, and is bonded with rotor case, strengthens bottom plate and the bonding strength of protecting box；
3）Using protecting box, the destruction to magnet steel during installation and operation is prevented, strengthens the protection of magnet steel；
4）Using epoxy resin encapsulated, prevent magnet steel from corroding, improve magnet steel stable operation, increase the service life of complete machine.
Brief description of the drawings
The dimensional structure diagram of Fig. 1 special-shaped magnetic steel components of the present invention.
The overlooking the structure diagram of Fig. 2 special-shaped magnetic steel components of the present invention.
The positive structure diagram of Fig. 3 special-shaped bottom plates of the present invention.
The overlooking the structure diagram of Fig. 4 special-shaped bottom plates of the present invention.
The overlooking the structure diagram of Fig. 5 protecting box.
The side structure schematic view of Fig. 6 protecting box.
Fig. 7 abnormity magnetic steel components are installed on rotor case, form the structural representation of p-m rotor.
1- abnormity bottom plates, 2- magnet steel, 3- protecting box, 4- rivets, 5- convex sections, 6- extensions, 7- rotor cases, 8- abnormity
Magnetic steel component, 9- press strips, 10- bolts.
Embodiment
Reeded special-shaped bottom plate 1, the magnet steel in groove are opened in a kind of special-shaped magnetic steel component structure, including upper surface
2 and the protecting box 3 for the bottom opening being enclosed on outside magnet steel 2；The projection parallelogram of special-shaped bottom plate 1 in the horizontal plane,
End where a pair of short side sides of special-shaped bottom plate 1 projects upwards the trough rim to form groove, on a pair of long sides of special-shaped bottom plate 1
Horizontally outward it is extended with multiple convex sections 5；The protecting box 3 two sides corresponding with a pair of long sides of special-shaped bottom plate 1
Lower end edge be also horizontally outward extended with extension 6 one-to-one with convex section 5, pass through riveting between extension 6 and convex section 5
4 phases are followed closely to fix；The bottom surface of the special-shaped bottom plate 1 is in the arc surface moved towards from a short side while to another short side, the circle
Cambered surface matches with the inner periphery of rotor case 7.Special-shaped bottom plate 1 is made up of permeability magnetic material.
When prepared by the special-shaped magnetic steel component structure, epoxy resin first is poured into protecting box 3, magnet steel 2 is put into protection
In box 3, then with rivet 4 protecting box and bottom plate riveting are got up, form a special-shaped magnetic steel component 8, then special-shaped magnetic steel component 8
It is installed on after magnetizing on the inner periphery of rotor case 7.
The adjacent spacing of convex section 5 is identical；The inner side edge of two trough rims and two long sides are vertical.
The protecting box 3 is made of stainless steel or plastics.
Magnet steel installation and protection produced problem, the present invention for current direct-drive permanent magnet wind power generator propose one kind
Special-shaped magnetic steel component structure, to manufacture direct-drive permanent-magnetism rotor.The technical characterstic of the present invention is as follows：
1）Using special-shaped bottom plate, it is easily installed, and is bonded with rotor case, strengthens bottom plate and the bonding strength of protecting box；
2）Using protecting box, the destruction to magnet steel during installation and operation is prevented, strengthens the protection of magnet steel；
3）Using epoxy resin encapsulated, prevent magnet steel from corroding, improve magnet steel stable operation, increase the service life of complete machine.
In order to show magnet steel in Fig. 1, Fig. 2, one jiao of protecting box is eliminated；The convex of special-shaped bottom plate is can be seen that in Fig. 2
Go out section, the bottom surface c of special-shaped bottom plate is in convex structure in Fig. 3, for being bonded the inner circumferential surface of rotor case；A ' in Fig. 4,
A is the inner side edge of trough rim, perpendicular with long side.Extension on Fig. 5,6 visible protecting box, the present invention is shown in Fig. 7
Structural representation on rotor case inner periphery.
Claims (4)
1. a kind of special-shaped magnetic steel component structure, it is characterised in that open reeded special-shaped bottom plate including upper surface（1）, be arranged on
Magnet steel in groove（2）And it is enclosed on magnet steel（2）The protecting box of outside bottom opening（3）；Special-shaped bottom plate（1）In the horizontal plane
Projection parallelogram, and the mutual out of plumb in adjacent both sides；Special-shaped bottom plate（1）A pair of short side sides where end project upwards
Form the trough rim of groove, special-shaped bottom plate（1）A pair of long sides on be horizontally outward extended with multiple convex sections（5）；The guarantor
Protect box（3）With special-shaped bottom plate（1）Corresponding two sides of a pair of long sides lower end edge be also horizontally outward extended with it is convex
Go out section（5）One-to-one extension（6）, extension（6）With convex section（5）Between pass through rivet（4）It is mutually fixed；The abnormity
Bottom plate（1）Bottom surface be in the arc surface that is moved towards from a short side while to another short side, the arc surface and rotor case（7）
Inner periphery matches.
A kind of 2. special-shaped magnetic steel component structure as claimed in claim 1, it is characterised in that the special-shaped magnetic steel component structure system
When standby, first in protecting box（3）Epoxy resin is inside poured into, by magnet steel（2）It is put into protecting box（3）It is interior, then use rivet（4）By protecting box
（3）And bottom plate（1）Riveting is got up, and forms a special-shaped magnetic steel component（8）, then special-shaped magnetic steel component（8）It is installed on after magnetizing
Rotor case（7）Inner periphery on；Epoxy resin encapsulated is used to prevent magnet steel from corroding.
A kind of 3. special-shaped magnetic steel component structure as claimed in claim 1 or 2, it is characterised in that adjacent convex section（5）Spacing phase
Together；The inner side edge of two trough rims and two long sides are vertical.
A kind of 4. special-shaped magnetic steel component structure as claimed in claim 1 or 2, it is characterised in that the protecting box（3）Using not
Rust steel or plastics are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544691.6A CN105071571B (en) | 2015-08-31 | 2015-08-31 | A kind of special-shaped magnetic steel component structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544691.6A CN105071571B (en) | 2015-08-31 | 2015-08-31 | A kind of special-shaped magnetic steel component structure |
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| Publication Number | Publication Date |
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| CN105071571A CN105071571A (en) | 2015-11-18 |
| CN105071571B true CN105071571B (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510544691.6A Active CN105071571B (en) | 2015-08-31 | 2015-08-31 | A kind of special-shaped magnetic steel component structure |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110870167A (en) * | 2017-06-15 | 2020-03-06 | 远景能源有限公司 | Magnet pole for generator |
| CN108964310B (en) * | 2018-07-27 | 2019-09-06 | 北京金风科创风电设备有限公司 | Motor rotor and method for manufacturing same |
| CN108777521B (en) * | 2018-07-27 | 2019-09-06 | 北京金风科创风电设备有限公司 | Magnetic pole module, motor rotor and method for manufacturing motor rotor |
| CN108736609B (en) * | 2018-07-27 | 2020-02-28 | 北京金风科创风电设备有限公司 | Magnetic pole module, motor rotor and method for manufacturing motor rotor |
| CN109921533B (en) * | 2019-04-11 | 2020-03-13 | 浙江大学 | Magnetic pole fixing device of permanent magnet wind driven generator and permanent magnet wind driven generator |
| DE102019116641A1 (en) * | 2019-06-19 | 2020-12-24 | Schütz Gmbh & Co Kgaa | Magnet assembly and magnet assembly assembly and rotor for an electrical generator with such a magnet assembly assembly |
Citations (4)
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| CN201846140U (en) * | 2009-12-31 | 2011-05-25 | 南车株洲电力机车有限公司 | Protection and fixing device for permanent magnet |
| CN102938591A (en) * | 2012-11-13 | 2013-02-20 | 永济新时速电机电器有限责任公司 | Magnetic pole box with location boss |
| CN204179783U (en) * | 2014-11-25 | 2015-02-25 | 南车株洲电机有限公司 | A kind of magneto magnetic pole box |
| CN204205767U (en) * | 2014-09-17 | 2015-03-11 | 欣达重工股份有限公司 | Wind power generation magneto |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004328989A (en) * | 2003-04-09 | 2004-11-18 | Kokusan Denki Co Ltd | Flywheel magnet generator and manufacturing method for rotor for flywheel magnet generator |
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2015
- 2015-08-31 CN CN201510544691.6A patent/CN105071571B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201846140U (en) * | 2009-12-31 | 2011-05-25 | 南车株洲电力机车有限公司 | Protection and fixing device for permanent magnet |
| CN102938591A (en) * | 2012-11-13 | 2013-02-20 | 永济新时速电机电器有限责任公司 | Magnetic pole box with location boss |
| CN204205767U (en) * | 2014-09-17 | 2015-03-11 | 欣达重工股份有限公司 | Wind power generation magneto |
| CN204179783U (en) * | 2014-11-25 | 2015-02-25 | 南车株洲电机有限公司 | A kind of magneto magnetic pole box |
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| CN105071571A (en) | 2015-11-18 |
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Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Applicant after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Applicant before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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