CN209200782U - A kind of skewed-rotor structure of permanent-magnetic wind driven generator - Google Patents
A kind of skewed-rotor structure of permanent-magnetic wind driven generator Download PDFInfo
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- CN209200782U CN209200782U CN201821503813.2U CN201821503813U CN209200782U CN 209200782 U CN209200782 U CN 209200782U CN 201821503813 U CN201821503813 U CN 201821503813U CN 209200782 U CN209200782 U CN 209200782U
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- magnet steel
- magnetic pole
- slot
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Abstract
The utility model discloses a kind of skewed-rotor structures of permanent-magnetic wind driven generator, rotor magnetic pole component including rotor field spider and circle distribution on the rotor field spider, rotor magnetic pole component passes through square screw rod by the multiple rotor magnetic poles being mounted between two pieces of pole end-plates and is all connected in series, rotor magnetic pole is made of magnetic pole box, magnet steel, the magnetic pole box is overrided to form by rotor punching, and magnetic slot is provided on each rotor punching, magnet steel is put into the magnetic slot after multiple rotor punchings laminate；The length of magnetic slot is greater than the length of magnet steel, magnet steel in all magnetic slots is arranged along one end of rotor magnetic pole component axial direction to the other end into a ladder, to form oblique pole structure, gap location is filled with cushion block filler between the both ends or one end and magnetic slot of magnet steel, so as to which position of the magnet steel in magnetic slot is fixed.The utility model can be effectively reduced the cogging torque of permanent-magnetic wind driven generator, torque ripple.
Description
Technical field
The utility model relates to the technical fields of half directly-drive permanent magnet wind generating machine, refer in particular to a kind of permanent magnet wind generating
The skewed-rotor structure of machine.
Background technique
With the development of wind driven generator technology, and with the optimization of host weight, magneto alternator is in light weight
While change, generator speed develops towards low wind speed, while improving power density, reduces the minimum starting wind of wind-driven generator
Speed improves the utilization rate of wind energy resources.For low wind speed permanent-magnetic wind driven generator, the tooth socket of emphasis examination permanent magnet generator is needed
Torque, when low wind speed being avoided to start, since the torque ripple of permanent magnet generator leads to the unstability of unit.Therefore, it is designing
It needs that corresponding technical measures is taken to optimize torque ripple in the process, mainly take skewed slot or tiltedly extremely realizes.But it is existing
Most of half directly-drive permanent magnet wind generating machines use water-cooling pattern, cooling water pipe penetrates from stator punching, leads to skewed stator slot
Craftsmanship it is extremely complex.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, propose a kind of rotor of permanent-magnetic wind driven generator
Oblique pole structure, can be effectively reduced cogging torque, the torque ripple of permanent-magnetic wind driven generator, makes wind-driven generator unit in low wind
Speed rises with good stability when machine.
To achieve the above object, a kind of technical solution provided by the utility model are as follows: rotor of permanent-magnetic wind driven generator
Oblique pole structure, the rotor magnetic pole component including rotor field spider and circle distribution on the rotor field spider, the rotor magnetic pole component
Pass through square screw rod by the multiple rotor magnetic poles being mounted between two pieces of pole end-plates to be all connected in series, the rotor magnetic pole is by magnetic
Pole box, magnet steel are constituted, and the magnetic pole box is overrided to form by rotor punching, and magnetic slot is provided on each rotor punching, the magnetic
Steel is put into the magnetic slot after multiple rotor punchings laminate；The length of the magnetic slot is greater than the length of magnet steel, all magnetic slots
Interior magnet steel is arranged along one end of rotor magnetic pole component axial direction to the other end into a ladder, to form oblique pole structure, wherein institute
State between the both ends or one end of magnet steel and magnetic slot gap location and be filled with cushion block filler, so as to magnet steel in magnetic slot
Position be fixed.
Further, the magnet steel in the magnetic slot with two pieces for one group, along one end of rotor magnetic pole component axial direction to another
It arranges into a ladder at end.
The utility model compared with prior art, have the following advantages that with the utility model has the advantages that
1, the utility model improves permanent-magnetic wind driven generator no-load back electromotive force waveform.
2, the utility model effectively eliminates cogging torque, reduces the torque pulsation of generator, ensure that permanent magnetism wind
Stability of the power generator when low speed is run.
3, the utility model structure is simple, wherein magnetic pole simple installation.
4, the utility model can meet design requirement using same rotor punching mould and same magnet steel specification.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model rotor magnetic pole component.
Fig. 2 is the main view of the utility model rotor magnetic pole.
Fig. 3 is the structural schematic diagram of the utility model magnetic pole box.
Fig. 4 is the main view of the utility model rotor punching.
Fig. 5 is the structural schematic diagram of the utility model magnet steel.
Fig. 6 is the cross-sectional view of the utility model skewed-rotor structure.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
Referring to shown in Fig. 1 to Fig. 6, the skewed-rotor structure of permanent-magnetic wind driven generator provided by the present embodiment, including turn
The rotor magnetic pole component 1 of submounts (being not drawn into figure) and circle distribution on the rotor field spider, rotor magnetic pole component 1 is by installing
Multiple rotor magnetic poles 12 between two pieces of pole end-plates 11 pass through square screw rod 13 and are all connected in series, and rotor magnetic pole 12 is by magnetic pole
Box 121, magnet steel 122 are constituted, and magnetic pole box 121 is overrided to form by rotor punching 1211, and is provided with magnetic on each rotor punching 1211
Steel tank 1212, magnet steel 122 are put into the magnetic slot 1212 after multiple rotor punchings 1211 laminate；The length of magnetic slot 1212 is greater than
The length of magnet steel 122, with one block of magnet steel 122 or two blocks of magnet steel 122 be one group along the axial one end of rotor magnetic pole component 1 to another
End is arranged into a ladder, to form oblique pole structure, wherein gap between the both ends or one end and magnetic slot 1212 of magnet steel 122
Place is filled with cushion block filler 123, carries out so as to position of the magnet steel 122 to the oblique pole structure of formation in magnetic slot 1212
It is fixed.
In the present embodiment, the width of magnetic slot 1212 is L1, and the width of magnet steel 122 is L4, cushion block filler 123 it is total
Width is L3=L1-L4, and (not including the pole end-plate 11 at the both ends) axial length of rotor magnetic pole component 1 is L2, rotor magnetic pole 12
There are n, then the length of every section of rotor magnetic pole 12 is L2/n.
As shown in fig. 6, the number n of rotor magnetic pole is even number, rotor magnetic pole component 1 is with two rotor magnetic poles 12 for one group
Oblique pole is carried out, with the rotor magnetic pole 12 of 1 any end of rotor magnetic pole component for first group, magnet steel in the first group rotor magnetic pole 12
122 one end are close to magnetic slot 1212, and cushion block filler 123 is filled in other end gap, and the magnet steel 122 in remaining group is along rotor magnetic
Component 1 axial direction in pole is arranged into a ladder, then the cushion block filler 123 at 122 both ends of magnet steel in every group rotor magnetic pole 12
Width difference is successively are as follows:
First group: L2/n, 2*L2/n, left and right filling cushion block width is respectively L1-L4, and 0；
Second group: 3*L2/n, 4*L2/n, left and right filling cushion block width is respectively L1-L4-2* (L1-L4)/n, 2* (L1-
L4)/n；
Third group: 5*L2/n, 6*L2/n, left and right filling cushion block width is respectively L1-L4-4* (L1-L4)/n, 4* (L1-
L4)/n；
……
The n-th/2 group: (n-1) * L2/n, n*L2/n, left and right filling cushion block width is respectively L1-L4-n* (L1-L4)/n, n*
(L1-L4)/n。
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit the utility model with this
Practical range, therefore all shapes according to the utility model, change made by principle, it should all cover in the protection scope of the utility model
It is interior.
Claims (2)
1. the skewed-rotor structure of a kind of permanent-magnetic wind driven generator, including rotor field spider and circle distribution on the rotor field spider
Rotor magnetic pole component, the rotor magnetic pole component pass through square screw rod by the multiple rotor magnetic poles being mounted between two pieces of pole end-plates
It is all connected in series, the rotor magnetic pole is made of magnetic pole box, magnet steel, and the magnetic pole box is overrided to form by rotor punching, and every
Magnetic slot is provided on a rotor punching, the magnet steel is put into the magnetic slot after multiple rotor punchings laminate；It is characterized by: institute
The length for stating magnetic slot is greater than the length of magnet steel, and the magnet steel in all magnetic slots is along one end of rotor magnetic pole component axial direction to another
End is arranged into a ladder, to form oblique pole structure, wherein gap location is filled out between the both ends or one end and magnetic slot of the magnet steel
Filled with cushion block filler, so as to which position of the magnet steel in magnetic slot is fixed.
2. the skewed-rotor structure of a kind of permanent-magnetic wind driven generator according to claim 1, it is characterised in that: the magnetic slot
Interior magnet steel with two pieces for one group, arrange into a ladder to the other end by one end along rotor magnetic pole component axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821503813.2U CN209200782U (en) | 2018-09-14 | 2018-09-14 | A kind of skewed-rotor structure of permanent-magnetic wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821503813.2U CN209200782U (en) | 2018-09-14 | 2018-09-14 | A kind of skewed-rotor structure of permanent-magnetic wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209200782U true CN209200782U (en) | 2019-08-02 |
Family
ID=67405959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821503813.2U Active CN209200782U (en) | 2018-09-14 | 2018-09-14 | A kind of skewed-rotor structure of permanent-magnetic wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209200782U (en) |
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2018
- 2018-09-14 CN CN201821503813.2U patent/CN209200782U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201231 Address after: 102200 601, building 6, No.30 courtyard, Binhe Avenue, future science city, Changping District, Beijing Patentee after: Mingyang Smart Energy Group Beijing Technology Co.,Ltd. Address before: 528437 No. 22 Torch Road, Torch Development Zone, Zhongshan City, Guangdong Province Patentee before: MING YANG SMART ENERGY GROUP Co.,Ltd. |