CN109842227A - Permanent magnet wind power generator rotor and permanent-magnetic wind driven generator including it - Google Patents
Permanent magnet wind power generator rotor and permanent-magnetic wind driven generator including it Download PDFInfo
- Publication number
- CN109842227A CN109842227A CN201910127439.3A CN201910127439A CN109842227A CN 109842227 A CN109842227 A CN 109842227A CN 201910127439 A CN201910127439 A CN 201910127439A CN 109842227 A CN109842227 A CN 109842227A
- Authority
- CN
- China
- Prior art keywords
- magnetic pole
- rotor
- mould group
- permanent magnet
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of permanent magnet wind power generator rotor and including its permanent-magnetic wind driven generator, there are multiple circumferentially distributed grooves in the rotor rim, the side wall of the groove is convex rib；The shape of the bottom surface of the magnetic pole mould group is adapted with the shape of the groove, and a part of the magnetic pole mould group is embedded at the inside of the groove；The convex rib is equipped with the fixation member for compressing the magnetic pole mould group.The present invention carries magnetic pole mould group using groove, greatly reduces the assembly difficulty of rotor and stator and the installation positioning difficulty of magnetic pole mould group；The present invention further fixes magnetic pole mould group using fixation member, greatly reduces the difficulty of processing and processing cost of rotor.
Description
Technical field
The present invention relates to wind power generation field, in particular to a kind of permanent magnet wind power generator rotor and the permanent magnetism wind including it
Power generator.
Background technique
Attention of the wind-power electricity generation due to environmental protection and public nuisance free, increasingly by countries in the world.Permanent magnetism synchronous wind generating
The rotor of machine includes rotor rim and permanent magnet, and general permanent magnet is fixed in rotor rim by the way of built-in or Surface Mount.
Surface-mount type is fixed with rotor rim is relatively easy to machine, permanent magnet dosage is relatively small, leakage field is relatively fewer, permanent magnetism shape
The advantages such as gain effect is obvious after optimization.It, often will forever in order to avoid permanent magnet corrodes and pollutes as caused by environment reason
Magnet paints or permanent magnet is encapsulated in magnetic pole mould group.
The existing rotor structure for surfacing, the fixed form of magnetic pole mould group are with bolt or other fixation members
Magnetic pole mould group is fixed in the rotor wall for offering multiple radial bolts holes.This maximum benefit of fixed form is rotor knot
Structure is simple, easy to process.But this fixed form has the shortcomings that three are difficult to overcome greatly: first is that magnetic pole mould group positions when installing
Relative difficulty；Second is that the huge tangential force that magnetic pole mould group is subject to when in order to overcome generator to run, it is necessary to many bolts be arranged and exist
The issuable circumferential movement of magnetic pole mould group could be limited in fixation member, while there is also the risks of bolt fatigue damage；
Another is that stator and rotor assembly must carry out after magnetic pole mould group is installed, and the huge magnetic force that permanent magnet generates is significantly
Assembly difficulty is improved, this disadvantage becomes apparent large-diameter rotor.It is existing for T-shaped (or other shapes
Shape, such as swallow-tail form) groove rotor structure.The fixed form of magnetic pole mould group is to be fabricated to magnetic pole mould group bottom and supratrochlear depression
Slot matches T-shaped, and then magnetic pole mould is assembled into groove.This fixed form overcomes above-mentioned based on surfacing
Rotor structure the shortcomings that.But process is tedious, required precision is high for T-shaped Pocket Machining, processing cost is high；Meanwhile with " T "
The processing of magnetic pole mould group and encapsulation difficulty that font groove matches are also higher, and Structural strength calls are also high.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the above-mentioned defects in the prior art, provide a kind of permanent-magnet wind power
Generator amature and permanent-magnetic wind driven generator including it.
The present invention is to solve above-mentioned technical problem by following technical proposals: a kind of permanent magnet wind power generator rotor,
Including rotor rim and magnetic pole mould group, it is characterized in that, there are multiple circumferentially distributed grooves in the rotor rim, it is described
The side wall of groove is convex rib；The shape of the bottom surface of the magnetic pole mould group is adapted with the shape of the groove, the magnetic pole mould
A part of group is embedded at the inside of the groove；The convex rib is equipped with the fixed part for compressing the magnetic pole mould group
Part.
Preferably, the groove extending radially into the rotor rim along the rotor rim in the depth direction,
Extend in the longitudinal direction from one end of the rotor rim towards other end.
Preferably, the groove axis along the axial direction of the rotor rim or with the rotor rim in the longitudinal direction
Extend at the angle less than 10 °.
Preferably, one end of the groove is closed end, one end is open end, is provided with sticking department at the open end
Part, for locking the magnetic pole mould group on the length direction of the groove.
Preferably, the cross sectional shape of the groove is rectangle or trapezoidal.
Preferably, at least one described magnetic pole mould group is arranged in the single groove.In the groove described in setting one
Magnetic pole mould group can reduce the packaging cost of top cover and substrate, reduces installation difficulty and improves installation effectiveness.
Preferably, the fixation member is press strip, several threaded holes are provided on the press strip, the press strip passes through described
Threaded hole is threadedly coupled with the convex rib.
Preferably, the fixation member is briquetting, threaded hole is provided on the briquetting, the briquetting passes through the screw thread
Hole is threadedly coupled with the convex rib.Briquetting is set by the fixation member, advantageously reduces rotor gross mass.
Preferably, the convex rib be on the length direction of the groove it is spaced, two convex ribs it
Between be provided with threaded hole, the fixation member is fixed on the threaded hole.The fixation member is distributed between convex rib,
Be conducive to positioning when fixation member installation, improve installation effectiveness.
Preferably, the fixation member is at least one, bottom is wider than at the top of the section of the fixation member, it is described solid
The side view for determining component is the cambered surface to match with the top surface of the magnetic pole mould group or inclined surface.The fixation member uses this
Kind structure is conducive to limit the radial motion of sporadic magnetic pole mould group when generator operation.
Preferably, the section of the fixation member is T-shaped；The top surface middle section of the magnetic pole mould group is cambered surface,
Both ends are divided into the plane to match with the fixation member.
The positive effect of the present invention is that: a kind of permanent magnet wind power generator rotor provided by the invention and including its
Permanent-magnetic wind driven generator, be by the way of fixation member being fixed in the convex rib of side wall of rectangle or trapezoidal groove come
Fixed magnetic pole mould group.The difficulty of processing of groove and magnetic pole mould group is advantageously reduced using rectangle or trapezoidal groove and machining accuracy is wanted
It asks, is conducive to the positioning when installation of magnetic pole mould group, can allow for smaller two circumferentially-adjacent magnetic pole mould group spacing.Using convex
Playing muscle and rotor rim is monoblock type, is mounted on the mode in rotor rim compared to by the convex rib later period, is able to bear bigger
Tangential force.And using after this fixed form, can first assemble rotor and stator, rear installation magnetic pole mould group, substantially reduce
Assembly difficulty caused by the huge magnetic force generated when rotor and stator assemble as magnetic pole mould group.
Detailed description of the invention
Fig. 1 is the partial schematic diagram of the permanent magnet wind power generator rotor of the embodiment of the present invention 1.
Fig. 2 is the schematic partial cross-sectional view of the permanent magnet wind power generator rotor of the embodiment of the present invention 1.
Fig. 3 is the schematic cross-section of the magnetic pole mould group of the embodiment of the present invention 1.
Fig. 4 is the schematic cross-section of the fixation member of the embodiment of the present invention 1.
Fig. 5 is the partial schematic diagram of the permanent magnet wind power generator rotor of the embodiment of the present invention 2.
Fig. 6 is the partial schematic diagram of the permanent magnet wind power generator rotor of the embodiment of the present invention 3.
Fig. 7 is the schematic cross-section of the fixation member of the embodiment of the present invention 4.
Fig. 8 is the schematic cross-section of the magnetic pole mould group of the embodiment of the present invention 5.
Fig. 9 is the schematic cross-section of the fixation member of the embodiment of the present invention 5.
Description of symbols:
Rotor rim 1
Groove 11
Convex rib 12
Threaded hole 13
Magnetic pole mould group 2
Substrate 21
Permanent magnet module 22
Top cover 23
Fixation member 3
Fixation member top surface 31
Fixation member bottom surface 32
Fixation member side 33
Threaded hole 34
Locking member 4
Specific embodiment
Preferred embodiment is enumerated below, and completely illustrates the present invention in conjunction with attached drawing to become apparent from.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of permanent magnet wind power generator rotors comprising rotor rim 1 and magnetic pole mould
Group 2, rotor rim 1 are equipped with multiple circumferentially distributed grooves 11, and the side wall of groove 11 is convex rib 12, open in convex rib 12
If several radial screw bores 13；The shape of the bottom surface of magnetic pole mould group 2 is adapted with the shape of groove 11, and one of magnetic pole mould group 2
Divide the inside for being embedded at groove 11, fixed with fixation member 3,3 one end of fixation member connects locking member 4.
Rotor rim 1 is permeability magnetic material, and the radial cross-sectional shape of the groove 11 in rotor rim 1 is rectangle, as one kind
The scheme of substitution, it is possible to use other shapes, it is such as trapezoidal, had the advantages that using this shape easy to process.Groove 11 is adopted
It is shaped with Xiyanping injection mode.Groove 11 extends radially into rotor rim 1 along rotor rim 1 in the depth direction, in length
Extend from an end face of rotor rim 1 along axial direction to other end on direction.Alternatively, in the longitudinal direction
It can also extend from one end towards other end with axial direction at an angle less than 10 °.One end of groove 11 is closed end, another
End is open end, and open end connects locking member 4.
Magnetic pole mould group 2 includes multiple permanent magnet modules 22 and shell, as shown in Fig. 2, the bottom shape of permanent magnet module 22
For the shape to match with groove 11, top surface is arc.It can be effectively reduced circumferentially-adjacent magnetic pole mould group 2 using this structure
Between leakage field.As shown in figure 3, shell is made of substrate 21 and top cover 23, substrate 21 uses permeability magnetic material, is mainly used for holding
Carry permanent magnet module 22；Top cover 23 uses non-magnet material, is mainly used for weakening the eddy-current loss generated in magnetic pole mould group, top cover
23, for protecting permanent magnet module 22, prevent it contaminated or corrosion；Substrate 21 and top cover 23 all have certain thickness.Permanent magnetism
Module 22 is arranged on the base plate (21, is then packaged top cover 23 and substrate 21 by welding.It is replaced as one kind
For scheme, can also be packaged using other modes.Before encapsulation, it also needs to fill between permanent magnet module 22 and shell
Resin material prevents permanent magnet module 22 mobile.The in-profile of shell and the exterior contour of permanent magnet module 2 match, favorably
In the manufacture and encapsulation of shell.
The magnetic pole mould group 2 that one groove 11 is embedded in an entirety can reduce top cover 23 and substrate in this way
21 packaging cost can be effectively reduced installation difficulty, improve installation effectiveness.The length of magnetic pole mould group 2 is less than the length of groove 11
Degree, width are equal to or slightly less than the width of groove 11, are highly greater than the height of convex rib.The height of magnetic pole mould group 2 is greater than protrusion
The height of muscle 12 can effectively weaken magnetic flux leakage.
Fixation member 3 is the press strip provided with several threaded holes 34, uses non-magnet material to be made, the screw thread on press strip
34 position of hole matches with 13 position of threaded hole in convex rib 12, and press strip is connect by bolt with convex rib 12.Such as Fig. 4 institute
Show, the top surface 31 of press strip is wider than bottom surface 32, and the bottom surface 32 of press strip and convex rib 12 are wide.The side 33 of press strip is and magnetic pole mould group
The cambered surface or at least part that 2 top surfaces and side match are adjacent with the top surface of magnetic pole mould group 2, to limit engine fortune
The radial motion of sporadic magnetic pole mould group 2 when row.
When rotor assembles, first fixation member 3 is fixedly connected with convex rib 12 with bolt；Then rotor and stator are carried out
Assembly；Then magnetic pole mould group 2 is packed into groove 11；Finally end lock component 4 is threadedly coupled with groove 11.Using this
The assembly difficulty as caused by the huge magnetic force of the generation of magnetic pole mould group 2 when mode greatly reduces rotor and stator assembly.
Embodiment 2
As shown in figure 5, the basic structure of the present embodiment is substantially the same manner as Example 1, and the difference is that: fixation member
3 be the briquetting for being provided with threaded hole 34, and multiple briquettings are threadedly coupled with convex rib 12.Using this fixation member 3, can reduce
The gross mass of rotor.And a groove 11 is embedded in multiple magnetic pole mould groups 2, the magnetic pole mould group 2 after can reduce encapsulation in this way
Magnetize difficulty.
Embodiment 3
As shown in fig. 6, the basic structure of the present embodiment and implementation 2 are essentially identical, and the difference is that: convex rib 12 exists
It is spaced setting on 11 length direction of groove, threaded hole 13, briquetting and 13 hole of threaded hole are provided between two convex ribs 12
It is threadedly coupled.In this way, be conducive to positioning when briquetting installation.
Embodiment 4
As shown in Figure 3 and Figure 7, the basic structure of the present embodiment is substantially the same manner as Example 1, the difference is that: Gu
The side 33 for determining component 3 is the clinoplain tangent with the side of the top surface of magnetic pole mould group 2, magnetic pole mould group, this clinoplain with
The top surface of magnetic pole mould group 2 and lateral parts are adjacent.
Embodiment 5
As shown in Figure 8 and Figure 9, the basic structure of the present embodiment is substantially the same manner as Example 1, the difference is that: Gu
The cross sectional shape of component 3 is determined using T-shaped.When using the fixation member 3 of this shape, magnetic pole mould group 2 is using in top surface
Between partially be cambered surface, both ends are divided into the plane to match with fixation member 3.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (12)
1. a kind of permanent magnet wind power generator rotor comprising rotor rim and magnetic pole mould group, which is characterized in that the rotor rim
Upper to have multiple circumferentially distributed grooves, the side wall of the groove is convex rib；The shape of the bottom surface of the magnetic pole mould group with
The shape of the groove is adapted, and a part of the magnetic pole mould group is embedded at the inside of the groove；It is set in the convex rib
There is the fixation member for compressing the magnetic pole mould group.
2. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that the groove is in the depth direction along institute
Extending radially into the rotor rim for rotor rim is stated, in the longitudinal direction from one end of the rotor rim towards another
End face extends.
3. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that the groove is in the longitudinal direction along institute
It states the axial direction of rotor rim or extends with the axial angle at less than 10 ° of the rotor rim.
4. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that one end of the groove is closed end,
One end is open end, is provided with locking member at the open end, for described in the locking on the length direction of the groove
Magnetic pole mould group.
5. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that the cross sectional shape of the groove is rectangle
Or it is trapezoidal.
6. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that setting at least one in the single groove
A magnetic pole mould group.
7. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that the fixation member is press strip, described
Several threaded holes are provided on press strip, the press strip is threadedly coupled by the threaded hole with the convex rib.
8. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that the fixation member is briquetting, described
Threaded hole is provided on briquetting, the briquetting is threadedly coupled by the threaded hole with the convex rib.
9. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that length of the convex rib in the groove
It is spaced for spending on direction, threaded hole is provided between two convex ribs, the fixation member is fixed on the spiral shell
On pit.
10. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that the fixation member is at least one,
It is wider than bottom at the top of the section of the fixation member, the shape of the side of the fixation member is the top with the magnetic pole mould group
The cambered surface or inclined surface that face matches.
11. permanent magnet wind power generator rotor as described in claim 1, which is characterized in that the section of the fixation member is " T "
Font；The middle section of the top surface of the magnetic pole mould group is cambered surface, and both ends are divided into the plane to match with the fixation member.
12. a kind of permanent-magnetic wind driven generator, which is characterized in that the permanent-magnetic wind driven generator includes as claim 1-11 is any
The sub- rotor of permanent magnet wind generating described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127439.3A CN109842227A (en) | 2019-02-20 | 2019-02-20 | Permanent magnet wind power generator rotor and permanent-magnetic wind driven generator including it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127439.3A CN109842227A (en) | 2019-02-20 | 2019-02-20 | Permanent magnet wind power generator rotor and permanent-magnetic wind driven generator including it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109842227A true CN109842227A (en) | 2019-06-04 |
Family
ID=66884623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910127439.3A Pending CN109842227A (en) | 2019-02-20 | 2019-02-20 | Permanent magnet wind power generator rotor and permanent-magnetic wind driven generator including it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109842227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342581A (en) * | 2020-04-01 | 2020-06-26 | 上海电气风电集团股份有限公司 | Magnetic pole protection structure, rotor, motor and rotor installation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116038A (en) * | 1998-09-29 | 2000-04-21 | Mitsubishi Electric Corp | Rotor for permanent magnet rotating machine |
| US20060220483A1 (en) * | 2005-03-30 | 2006-10-05 | Comprehensive Power, Inc. | Magnet retention on rotors |
| EP2555383A1 (en) * | 2011-08-01 | 2013-02-06 | Siemens Aktiengesellschaft | Permanent magnet assembly with sliding fixing arrangement and method for fixing a permanent magnet onto a base plate |
| CN106981938A (en) * | 2017-04-19 | 2017-07-25 | 远景能源（江苏）有限公司 | It is straight to drive generator field structure |
-
2019
- 2019-02-20 CN CN201910127439.3A patent/CN109842227A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116038A (en) * | 1998-09-29 | 2000-04-21 | Mitsubishi Electric Corp | Rotor for permanent magnet rotating machine |
| US20060220483A1 (en) * | 2005-03-30 | 2006-10-05 | Comprehensive Power, Inc. | Magnet retention on rotors |
| EP2555383A1 (en) * | 2011-08-01 | 2013-02-06 | Siemens Aktiengesellschaft | Permanent magnet assembly with sliding fixing arrangement and method for fixing a permanent magnet onto a base plate |
| CN106981938A (en) * | 2017-04-19 | 2017-07-25 | 远景能源（江苏）有限公司 | It is straight to drive generator field structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342581A (en) * | 2020-04-01 | 2020-06-26 | 上海电气风电集团股份有限公司 | Magnetic pole protection structure, rotor, motor and rotor installation method |
| CN111342581B (en) * | 2020-04-01 | 2021-09-24 | 上海电气风电集团股份有限公司 | Magnetic pole protection structure, rotor, motor and rotor installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7355309B2 (en) | Permanent magnet rotor for a direct drive generator or a low speed motor | |
| CA2894788C (en) | Permanent magnet machine with segmented sleeve for magnets | |
| CN102498640B (en) | Permanent magnet exited synchronous machine with embedded magnets | |
| EP2645537B1 (en) | Permanent magnet rotor | |
| EP1860755A2 (en) | Magnet retaining arrangement | |
| CN102439822B (en) | A permanent magnet module for an electrical machine | |
| US8766468B1 (en) | Rotor for a permanent magnet electrical machine of a mobile working machine | |
| EP2602911B1 (en) | Rotor with embedded permanent magnets for power transmission chain in a mobile working machine | |
| US9287740B2 (en) | Pole shoe arrangement for a machine element of an electrical machine | |
| CN111245124B (en) | Electric machine and turbomachine having such an electric machine | |
| FI117581B (en) | Rotor of permanent magnet machine | |
| CA2731616A1 (en) | Permanent magnet synchronous machine | |
| CN206575252U (en) | The rotor and brushless electric machine of brushless electric machine | |
| US20130270953A1 (en) | Magnet cover plate module for wind turbine generators, arrangement, mounting and dismounting method thereof | |
| CN204696825U (en) | Built-in permanent magnet motor rotor punching | |
| Wang et al. | Optimization design of rotor structure for high speed permanent magnet machines | |
| CN102916501A (en) | Permanent magnet assembly with moulded plastic cover and method for protecting a permanent magnet | |
| EP2645535A1 (en) | Permanent magnet rotor | |
| EP2712060B1 (en) | Permanent magnet modules and rotors | |
| CN109842227A (en) | Permanent magnet wind power generator rotor and permanent-magnetic wind driven generator including it | |
| EP2680401B1 (en) | Permanent magnet rotor | |
| CN102412644A (en) | Rotor magnetic pole structure for permanent motor | |
| CN207124497U (en) | Rotor sheath, rotor and high-speed permanent magnet motor | |
| CN206575251U (en) | The rotor and brushless electric machine of brushless electric machine | |
| EP3402045B1 (en) | Permanent magnet modules |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 310058 Xihu District, Zhejiang, Yuhang Tong Road, No. 866, No. Applicant after: Zhejiang University Applicant after: Shanghai Electric Wind Power Group Co., Ltd Address before: 310058 Xihu District, Zhejiang, Yuhang Tong Road, No. 866, No. Applicant before: Zhejiang University Applicant before: Shanghai Electric Wind Power Group Co., Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190604 |