CN207732519U - A kind of stator core structure and wind-driven generator - Google Patents
A kind of stator core structure and wind-driven generator Download PDFInfo
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- CN207732519U CN207732519U CN201721817532.XU CN201721817532U CN207732519U CN 207732519 U CN207732519 U CN 207732519U CN 201721817532 U CN201721817532 U CN 201721817532U CN 207732519 U CN207732519 U CN 207732519U
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- silicon steel
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- fanning strip
- steel fanning
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Abstract
The utility model discloses a kind of stator core structure and wind-driven generators, including：Stator support with stator axis；Several silicon steel fanning strip groups are arranged in each silicon steel fanning strip group and are equipped with several silicon steel fanning strips；It misplaces and is stacked on stator support between several silicon steel fanning strips；At least one inclination ventilation channel plate is arranged between two adjacent silicon steel fanning strip groups；At least one studdle with nut, each studdle coordinate through stator support, silicon steel fanning strip group and inclination ventilation channel plate with nut so that stator support, silicon steel fanning strip group and inclination ventilation channel plate are fixed and laminated.The utility model is convenient with closed assembly, the advantages of reducing eddy-current loss, reduce heat dissipation, improve the efficiency and reliability of generator.
Description
Technical field
The utility model is related to technical field of wind power generation, more particularly to a kind of stator core structure and wind-force and power generation
Machine.
Background technology
Motor is to realize electrical energy production, transmission and the core equipment used, is had in all industries of modern society and department
It is widely applied and in national economy in occupation of extremely important status.
Generator includes mainly two big component of stator and rotor, and general generator is usually external stator, and stator dimensions ratio
Smaller, for outer diameter in 1000mm hereinafter, stator core is generally laminated using whole silicon steel punched chip, both ends pass through tooth support and end plate
It clamps, outer diameter is welded and fixed by dowel.Since stator dimensions are smaller and silicon steel punched chip is whole, lamination process
Fairly simple, tooth Zhang Xianxiang can be very good control in error range.Silicon steel punched chip and iron core holder in the prior art
Fixed form be generally welded to connect type, dovetail groove connecting-type, cramp connecting-type etc..
Limited due to being welded to connect type welding space, mostly and between welding material attribute is different for weld seam, is easy to produce in commissure
Raw rosin joint, is not easy to detect, welding quality can not ensure.The stator core dovetail groove dowel machining accuracy of dovetail groove connecting-type is wanted
It asks high, is required with stator core holder assembly precision high.Cramp connecting-type is mainly for external stator core construction.Above-mentioned several sides
For formula for stator core of wind driven generator, especially large directly driven permanent magnet wind generating stator, stator core inside and outside circle is straight
Diameter is very big, and if 3.2MW direct wind-driven generator stator outer diameters are 4600mm, and aerogenerator stator is usually default
Son；Stator coil is single layer coil, and span is small, and size is big, using general unit stator iron core pressing method, it is difficult to control stator iron
Heart tooth and precision cause iron core performance to decline, since single layer coil embedding requires height, the error of very little that will be caused to embedding
Difficult and hidden danger or even broken ring coil or it is embedding do not enter, cause motor damage.Therefore it is highly desirable to design and a kind of new determine
Sub- core construction solves the problems, such as this.
Utility model content
The purpose of this utility model is to provide a kind of stator core structure and wind-driven generator, and realization avoids weld defect,
Aerogenerator stator reliability is improved, eddy-current loss is reduced, heat dissipation is reduced, improves the efficiency and reliability of generator
Purpose.
In order to realize that object above the utility model is achieved through the following technical solutions：
A kind of stator core structure, including：Stator support with stator axis；Several silicon steel fanning strip groups, setting exist
It is equipped with several silicon steel fanning strips in each silicon steel fanning strip group；Dislocation is stacked in the stator between several silicon steel fanning strips
On holder；At least one inclination ventilation channel plate is arranged between two adjacent silicon steel fanning strip groups；It is at least one to carry spiral shell
Female studdle, each studdle run through the stator support, silicon steel fanning strip group and inclination ventilation channel plate and institute
State nut cooperation so that the stator support, silicon steel fanning strip group and inclination ventilation channel plate fixation laminate.
Preferably, the circle centre position of the close silicon steel fanning strip on each silicon steel fanning strip is equipped with and the stator axis phase
Matched locating aperture, each silicon steel fanning strip carry out positioning closed assembly by the locating aperture and the stator support.
Preferably, each thickness close to the stator axis side for tilting ventilation channel plate is H1, far from described fixed
The thickness of sub- axis side is H2, and H1 is more than H2.
Preferably, stator core structure is additionally provided with the driving end end plate and anti-drive end being arranged on the stator support
End plate, the driving end end plate are oppositely arranged with anti-drive end end plate；Drive end tooth pressing plate and anti-drive end tooth support, the drive
Moved end tooth support and anti-drive end tooth support are oppositely arranged；The driving end tooth pressing plate and anti-drive end tooth support are close to described fixed
One end of sub- axis corresponds to respectively to be connect with the driving end end plate with one end of the close stator axis of anti-drive end end plate；If
The dry silicon steel fanning strip group is between the driving end tooth pressing plate and anti-drive end tooth support.
Preferably, each silicon steel fanning strip is that the stamped operation of a rectangle silicon steel sheet is uniformly divided into the m silicon
Any one in steel fanning strip, the wherein range of m, 12≤m≤36；Outside the selection and motor pole number, slot number and stator core of m
Diameter size is related.
Preferably, as m=24, the left and right sides tooth root edge of each silicon steel fanning strip is respectively equipped with half spiral shell
Keyhole；It is equidistantly provided with first and second full circle bolt hole between the first half bolt hole and the second half bolts hole；Its
In the first and second half bolts hole and first and second full circle bolt hole along the symmetrical axial symmetry of silicon steel fanning strip.
Preferably, being respectively equipped on the first and second full circle bolt hole on each silicon steel fanning strip prevents magnetic
Road is around the gap for causing vortex.
Preferably, between the adjacent two silicon steel fanning strips using dislocation one third and/or 2/3rds it is folded
Pressure mode carries out closed assembly.
Preferably, the first full circle screw on a silicon steel fanning strip in the adjacent two silicon steel fanning strips
Hole is arranged concentrically with the second full circle screw hole on silicon steel fanning strip described in another or adjacent two silicon steel are fan-shaped
The second full circle screw hole on a silicon steel fanning strip in piece and the first full circle on another described silicon steel fanning strip
Screw hole is arranged concentrically.
Second technical solution of the utility model is a kind of large directly driven permanent magnet wind generating, including：Equipped with as above
The stator of stator core structure described in text, and the rotor that matches with the stator.
The utility model has the following advantages compared with prior art：
The utility model realizes positioning by the open slot being equipped in stator core, has closed assembly conveniently, accurate positioning
The advantages of；By equipped with studdle several silicon steel fanning strips are fixedly connected and need not be welded, reduce to material fur
Size requirement, reduce work hours, as 3MW aerogenerator stators exist 1000 a plurality of weld seams, and weld operating space it is narrow, shortening
Production cycle, weld defect is avoided, aerogenerator stator reliability is improved.Studdle one end and stator core end plate
Welding, the other end are fastened using nut, the adjustable tight ness rating axially laminated, while supporting the silicon steel jointly with stator support
Piece reduces Generator Vibration and noise.The open slot being equipped on the bolt hole that silicon steel fanning strip is equipped with reduces eddy-current loss, subtracts
Few heat dissipation, improves the efficiency and reliability of generator.
Description of the drawings
Fig. 1 is a kind of whole cross-sectional view of stator core structure of the utility model；
Fig. 2 is a kind of structural schematic diagram of the silicon steel fanning strip of stator core structure of the utility model；
Fig. 3 is a kind of front view of the ventilation channel plate of stator core structure of the utility model.
Specific implementation mode
The utility model is done and is further explained by the way that a preferable specific embodiment is described in detail below in conjunction with attached drawing
It states.
Fig. 1 is all subject in top as described herein, lower section, left and right side, and the wherein top of Fig. 1 is top, and bottom end is
Lower section, left are left side, and right is right side.
In conjunction with shown in Fig. 1 and Fig. 2, a kind of stator core structure of the utility model, including：Stator support 6 drives end end plate
4, anti-drive end end plate 7, driving end end plate 4 is oppositely arranged with anti-drive end end plate 7, wherein driving end end plate 4 is set
It sets in the top of the stator support 6；The anti-drive end end plate 7 is arranged in the lower section of the stator support 6.
Several are furnished with the studdle 8 of nut 5, wherein at least one studdle 8 sequentially passes through the driving
Three is connected and fixed by end end plate 4, stator support 6 and anti-drive end end plate 7.
The stator support 6 along vertical direction as shown in Figure 1 be equipped with a stator axis, driving end end plate 4 and
Anti-drive end end plate 7 connects with the both ends of the stator axis along in horizontal direction close to one end of the stator axis respectively
It connects.
A kind of stator core structure of the utility model also includes：End tooth pressing plate 3 and anti-drive end tooth support 9 are driven, it is described
Driving end tooth pressing plate 3 and anti-drive end tooth support 9 are oppositely arranged, wherein the driving end tooth pressing plate 3 is arranged in the stator branch
The top of frame 6；The anti-drive end tooth support 9 is arranged in the lower section of the stator support 6.
Several tilt ventilation channel plate 2, and the driving end tooth pressing plate 3 is arranged at intervals on along vertical direction shown in FIG. 1
Between anti-drive end tooth support 9.If the quantity for tilting ventilation channel plate 2 is n, in the driving end tooth pressing plate 3 and non-driven
The inclination ventilation channel plate space-number formed between end tooth pressing plate 9 is n+1.As shown in figure 3, each inclination ventilation described in as
The thickness of one end of the stator axis close to the stator support 6 of frid 2 is H1, and the thickness of one end far from the stator axis is
H2, wherein H1 ＞ H2, in the present embodiment, H1-H2=0.1mm.Using the stator iron in order to prevent of the inclination ventilation channel plate 2
There is tooth Zhang Xianxiang in the heart, and tooth Zhang Xianxiang can cause stator core loosening, generate vibration, so that noise is increased, insulation between plates is caused to damage
Bad and short-circuit, Localized wear increases, and temperature, which rises, to be increased, and insulation ag(e)ing is accelerated.In the present embodiment, 3 He of driving end tooth pressing plate
Anti-drive end tooth support 9 uses Prebending type, and the stator core is further prevented the excessive phenomenon of tooth occur.
A kind of stator core structure of the utility model, further includes：The silicon steel fanning strip of several dislocation closed assemblies, such as schemes
Shown in 2, each silicon steel fanning strip is that the stamped operation of a rectangle silicon steel sheet is uniformly divided into the m silicon steel fanning strips
Any one.12≤m≤36；The selection of m is related with motor pole number, slot number and frame diameter size.In the present embodiment
In, m=24.Wherein, the tip portions of each silicon steel fanning strip are for being arranged stator coil.
The left and right sides tooth root edge of each silicon steel fanning strip is respectively equipped with half bolt hole；Wherein the first half spiral shells
Keyhole 100 and the second half bolts hole 101 are along the symmetrical axial symmetry of silicon steel fanning strip.In the first half bolt hole 100 and
Two full circle bolts hole are equidistantly provided between 2 half bolts hole 101.Wherein respectively in the first full circle bolt hole 120 and second
Full circle bolt hole 121 set there are one width as the first gap 110 of b and the second gap 111.The selection of 2≤b≤8, b and bolt
Hole size and fanning strip thickness are related, and 110 and second gap 111 of above-mentioned first gap is for preventing magnetic circuit around caused whirlpool
Stream.Locating aperture is equipped at interval middle separated time between above-mentioned two adjacent bolts hole, that is, the first half 100 Hes of bolt hole
There is the first locating aperture 130 between first full-round hole 120, the center of circle of the first half bolt hole 100 and the first full-round hole 120 is arrived
The distance of first locating aperture, 130 center line is equal.Similarly, have between the first full-round hole 120 and the second full-round hole 121
Two locating apertures 131, the center of circle to 131 center of the second locating aperture of first full-round hole, 120 and second full-round hole 121
The distance of line is equal.There are third locating aperture 132, second full circle between second full-round hole 121 and the second half bolts hole 101
The distance of the center of circle to 132 center line of third locating aperture of hole 121 and the second half bolts hole 101 is equal.Above-mentioned positioning is opened
The positioning protrusion clamping that with locating aperture matches of the mouth for being equipped with stator axis, realizes determining for fixed each silicon steel fanning strip
Position.
Each of above-mentioned n+1 interval is equipped with the silicon steel fanning strip group to match with the interval in interval, and silicon steel is fan-shaped
Piece group is a stack of lamination of the stator core.It misplaces between each silicon steel fanning strip in silicon steel fanning strip group folded
It presses, the second full circle bolt hole 121 on the silicon steel fanning strip of lower layer is located in adjacent two silicon steel fanning strips and is located at upper layer
Silicon steel fanning strip on the first full circle bolt hole 120 it is opposite be arranged concentrically, the first half be located on the silicon steel fanning strip on upper layer
Circle bolt hole 100 is concentric with the first full circle bolt hole 120 on the silicon steel fanning strip of lower layer；Silicon steel positioned at lower layer is fan-shaped
Second semicircle bolt hole 101 of on piece and the second full circle bolt hole 121 on the silicon steel fanning strip on upper layer are concentric.Under being located at
Layer silicon steel fanning strip on the second locating aperture 131 and third locating aperture 132 with positioned at upper layer silicon steel fanning strip on
First locating aperture 130 and the second locating aperture 131 are located relatively at respectively in a middle separated time.Each tilt sets on ventilation channel plate
There is the ventilation channel plate screw hole to match with the screw hole in the silicon steel fanning strip group.
Screw hole and ventilation channel plate screw hole in the silicon steel fanning strip group match with studdle 8, each described
Studdle 8 runs through the anti-drive end end plate 7, and anti-drive end tooth support 9 is arranged in above-mentioned n+1 silicon steel fanning strip group
Screw hole and each ventilation channel plate screw hole tilted on ventilation channel plate and 3 attaching nut of driving end tooth pressing plate are by above-mentioned five
It is connected and fixed.
In conclusion fixed stator holder first, welds anti-drive end end plate and tooth support, then root on stator support
Start closed assembly silicon steel fanning strip according to the height of design requirement and tilt ventilation channel plate, then put driving end tooth pressing plate and end plate, finally
Studdle is inserted into silicon steel fanning strip and is tilted in the screw hole that ventilation channel plate is equipped with, groove profile integer and press fitting, support are carried out
It is welded with anti-drive end end plate and anti-drive end tooth support below screw rod, top is tightened by nut connection, is just made
Meet the stator core structure of design requirement.
One embodiment according to the present utility model, the invention also discloses a kind of wind-driven generators, and it includes upper
Stator core structure described in text, and the rotor that matches with the stator core structure.
The full circle bolt hole of each silicon steel fanning strip of the utility model is equipped with gap, and having, which prevents magnetic circuit from surrounding, causes
Vortex；Reduce eddy-current loss.Between two layers adjacent of silicon steel fanning strip using dislocation one third and/or 2/3rds it is folded
Pressure mode, and closed assembly positioning is carried out using the stator axis for the locating aperture and stator core being equipped with；So that the utility model tool
There is the advantages of positioning is simple, and iron core is completely embedded, and magnetic circuit is evenly distributed.Using inclination ventilation channel plate, silicon between stator core segment
Steel fanning strip root portions are thicker 0.1mm than tip portions, prevent the excessive phenomenon of tooth；Stator core both ends use Prebending type
Tooth support prevents the excessive phenomenon of tooth；Stator core increases stator by studdle and stator support dual support
Iron core fastness reduces vibration.
Although the content of the utility model is discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read the above, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the scope of protection of the utility model should be by appended
Claim limit.
Claims (10)
1. a kind of stator core structure, which is characterized in that include：Stator support with stator axis；Several silicon steel fanning strips
Group is arranged in each silicon steel fanning strip group and is equipped with several silicon steel fanning strips；Misplace closed assembly between several silicon steel fanning strips
On the stator support；
At least one inclination ventilation channel plate is arranged between two adjacent silicon steel fanning strip groups；
At least one studdle with nut, each studdle run through the stator support, silicon steel fanning strip group
Coordinate with the nut with ventilation channel plate is tilted so that the stator support, silicon steel fanning strip group and inclination ventilation channel plate are fixed
It laminates.
2. stator core structure as described in claim 1, which is characterized in that
The circle centre position of close silicon steel fanning strip on each silicon steel fanning strip is equipped with the positioning to match with the stator axis
Opening, each silicon steel fanning strip carry out positioning closed assembly by the locating aperture and the stator support.
3. stator core structure as described in claim 1, which is characterized in that
Each thickness close to the stator axis side for tilting ventilation channel plate is H1, the thickness far from the stator axis side
Degree is H2, and H1 is more than H2.
4. stator core structure as described in claim 1, which is characterized in that
Stator core structure is additionally provided with the driving end end plate being arranged on the stator support and anti-drive end end plate, the driving
End end plate is oppositely arranged with anti-drive end end plate；
Driving end tooth pressing plate and anti-drive end tooth support, the driving end tooth pressing plate and anti-drive end tooth support are oppositely arranged；Institute
State driving end tooth pressing plate and anti-drive end tooth support close to one end of the stator axis respectively it is corresponding with the driving end end plate and
Anti-drive end end plate is connected close to one end of the stator axis；
Several described silicon steel fanning strip groups are between the driving end tooth pressing plate and anti-drive end tooth support.
5. stator core structure as claimed in claim 1 or 2, which is characterized in that
It is any one in m silicon steel fanning strips that each silicon steel fanning strip is that a rectangle silicon steel sheet punching press is uniformly divided into
It is a, wherein 12≤m≤36.
6. stator core structure as claimed in claim 5, which is characterized in that
As m=24, the left and right sides tooth root edge of each silicon steel fanning strip is respectively equipped with half bolt hole；Described
It is equidistantly provided with first and second full circle bolt hole between the first half bolts hole and the second half bolts hole；Wherein first and second
Half bolt hole and first and second full circle bolt hole are along the symmetrical axial symmetry of silicon steel fanning strip.
7. stator core structure as claimed in claim 6, which is characterized in that
Being respectively equipped on the first and second full circle bolt hole on each silicon steel fanning strip, which prevents magnetic circuit from surrounding, causes
The gap of vortex.
8. stator core structure as claimed in claim 5, which is characterized in that
It is folded using the mode that laminates of dislocation one third and/or 2/3rds between two adjacent silicon steel fanning strips
Dress.
9. stator core structure as claimed in claim 8, which is characterized in that
The first full circle screw hole on a silicon steel fanning strip in two adjacent silicon steel fanning strips and another
The second full circle screw hole on the silicon steel fanning strip be arranged concentrically or adjacent two silicon steel fanning strips in one
The second full circle screw hole on the silicon steel fanning strip and the first full circle screw hole on silicon steel fanning strip described in another are concentric
Setting.
10. a kind of large directly driven permanent magnet wind generating, which is characterized in that include：Equipped with any one of such as claim 1 ~ 9
The stator of the stator core structure, and the rotor that matches with the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721817532.XU CN207732519U (en) | 2017-12-22 | 2017-12-22 | A kind of stator core structure and wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721817532.XU CN207732519U (en) | 2017-12-22 | 2017-12-22 | A kind of stator core structure and wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207732519U true CN207732519U (en) | 2018-08-14 |
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ID=63085724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721817532.XU Active CN207732519U (en) | 2017-12-22 | 2017-12-22 | A kind of stator core structure and wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207732519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445271A (en) * | 2019-09-05 | 2019-11-12 | 常州神力电机股份有限公司 | A kind of type fanning strip easy to disassemble of wind power generator rotor |
| CN112994285A (en) * | 2021-04-13 | 2021-06-18 | 哈动国家水力发电设备工程技术研究中心有限公司 | Aerogenerator silicon steel sheet with support fixed establishment |
-
2017
- 2017-12-22 CN CN201721817532.XU patent/CN207732519U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445271A (en) * | 2019-09-05 | 2019-11-12 | 常州神力电机股份有限公司 | A kind of type fanning strip easy to disassemble of wind power generator rotor |
| CN112994285A (en) * | 2021-04-13 | 2021-06-18 | 哈动国家水力发电设备工程技术研究中心有限公司 | Aerogenerator silicon steel sheet with support fixed establishment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200241 Dongchuan Road, Shanghai, No. 555, building No. 8, floor, floor, No. Patentee after: Shanghai Electric Wind Power Group Co., Ltd Address before: 200241, 4 floor, building 555, 4 Dongchuan Road, Shanghai, Minhang District Patentee before: Shanghai Electric Wind Power Group Co., Ltd. |
|
| CP03 | Change of name, title or address |