CN203326757U - Large-scale permanent magnet direct drive aerogenerator and magnetic separation structure thereof - Google Patents
Large-scale permanent magnet direct drive aerogenerator and magnetic separation structure thereof Download PDFInfo
- Publication number
- CN203326757U CN203326757U CN2013202849112U CN201320284911U CN203326757U CN 203326757 U CN203326757 U CN 203326757U CN 2013202849112 U CN2013202849112 U CN 2013202849112U CN 201320284911 U CN201320284911 U CN 201320284911U CN 203326757 U CN203326757 U CN 203326757U
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- magnetic
- permanent magnet
- wind generating
- directly driven
- shielding structure
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Abstract
The utility model refers to a large-scale permanent magnet direct drive aerogenerator and a magnetic separation structure thereof. The magnetic separation structure comprises pole shoes, magnetic separation plates and pressure plates, wherein the pole shoes are fixed on the magnetic separation plates and form magnetic steel fixing grooves among the pole shoes; the magnetic separation plates are located under the magnetic steel fixing grooves. The aerogenerator employs a built-in magnetic pole type rotator; the magnetic separation plates of the magnetic separation structure are in fixed connection with a rotator structure member; connecting pieces, i.e., bolts and the rotator structure member are separated by gaskets and sleeves prepared by magnetic separation materials. The magnetic steels of the rotator are fixed in the magnetic steel fixing grooves of the magnetic separation structure. According to the utility model, the leakage flux of built-in magnetic steels can be effectively reduced and the magnetic steel utilization rate can be raised.
Description
Technical field
The utility model relates to wind power generation field, particularly relates to a kind of large directly driven permanent magnet wind generating and magnetic shielding structure thereof.
Background technology
At present, wind power generation generator special forward high reliability, low maintenance, low cost, high efficiency future development.Therefore, become following development trend based on variable-speed operation, change slurry apart from the direct-drive permanent magnet wind power generator of adjusting, the slow-speed of revolution, high efficiency, High Power Factor.Inner-rotor-type direct-drive permanent-magnetism formula generator adopts built-in magnetic pole usually according to the setting of permanent magnet, the permanent magnet of built-in magnetic pole is placed in unshakable in one's determination inner, can place more permanent magnet, to improve air gap flux density, reduce the weight and volume of motor, be widely used.But the processing of built-in magnetic pole and installation are complicated, leakage field is large, how found a kind of utilance that reduces leakage field, improves magnet steel, thereby improve the large directly driven permanent magnet wind generating of electric efficiency and the important topic that magnetic shielding structure becomes current research and development thereof.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of large directly driven permanent magnet wind generating and magnetic shielding structure thereof, makes it effective every magnetic, improve magnet steel utilance, thereby overcome the large deficiency of existing built-in magnetic pole leakage field.
For solving the problems of the technologies described above, the utility model provides a kind of magnetic shielding structure of large directly driven permanent magnet wind generating, comprises pole shoe, magnetic isolation plate and pressing plate, and pole shoe is fixed on magnetic isolation plate by pressing plate, and forming the magnet steel holddown groove between pole shoe, magnetic isolation plate is positioned at magnet steel holddown groove below.
As a kind of improvement of the present utility model, the utility model also can be realized by following manner:
A kind of magnetic shielding structure of large directly driven permanent magnet wind generating, wherein, described magnetic isolation plate is fixed on the rotor structure part by pole shoe by pressing plate and screw.
Also overlap magnetic shield cylinder and plain washer are arranged on described screw.
Described screw is stainless steel material.
Described pole shoe is provided with the pole shoe installation foot, and is fixed on magnetic isolation plate by pressing plate by this pole shoe installation foot.
Described magnetic isolation plate is glass-reinforced plastic material.
Described pressing plate is stainless steel material.
In addition, the utility model also provides a kind of large directly driven permanent magnet wind generating of applying above-mentioned magnetic shielding structure, it adopts built-in magnet pole formula rotor, the magnetic isolation plate of described magnetic shielding structure is fixedly connected with the rotor structure part, and the magnet steel of described rotor is fixed in the magnet steel holddown groove of described magnetic shielding structure.
As further improvement, described pressing plate, magnetic isolation plate, rotor structure part are fixedly connected with by screw.
Be provided with magnetic shield cylinder and plain washer between described screw and rotor structure part.
After adopting such design, the utility model at least has the following advantages:
1, the utility model is applied to the magnetic shielding structure of the built-in rotor magnet steel of large directly driven permanent magnet wind generating, and easy to assembly, cost is low.
2, the utility model can effectively reduce the leakage field of built-in magnet steel, improve magnet steel utilance.
3, the utility model service condition is succinct, is beneficial to adjustment, can effectively guarantee matching requirements, reaches the specification requirement effect, can be widely used in built-in magnet steel every the magnetic scheme.
The accompanying drawing explanation
Above-mentioned is only the general introduction of technical solutions of the utility model, and in order to better understand technological means of the present utility model, below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Fig. 1 is the structural representation of the magnetic shielding structure of a kind of large directly driven permanent magnet wind generating of the utility model.
Fig. 2 is A place broken section enlarged drawing in Fig. 1.
The end view that Fig. 3 is rotor.
Fig. 4 is B place partial enlarged drawing in Fig. 3.
The structural representation that Fig. 5 is the utility model pole shoe installation foot.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.Shown in Fig. 1-4, a kind of large directly driven permanent magnet wind generating that the utility model provides adopts built-in magnet pole formula rotor, its magnetic shielding structure, comprise pole shoe 2, magnetic isolation plate 3 and pressing plate 5, the magnet steel 1 of rotor is fixed in the groove of pole shoe 2 formation, and magnet steel 1 is pad magnetic isolation plate 3 below, and pole shoe 2 is fixedly connected with pressing plate 5, magnetic isolation plate 3 is connected by screw 6 with pressing plate 5, and is fastened on rotor structure part 4.
Wherein, magnetic isolation plate 3, pressing plate 5 and screw 6 are non-magnet_conductible material, magnetic isolation plate 3 preferred glass Steel materials, pressing plate 5 and the preferred stainless steel material of screw 6.Shown in Fig. 5, pole shoe 2 is provided with pole shoe installation foot 9, and pole shoe 2 is fixed on pressing plate 5.
For further guarantee rotor magnetic pole and rotor structure part 4 every the magnetic effect, the utility model also comprises sleeve 7 and plain washer 8, sleeve 7 and plain washer 8 are made by the NULL that insulate, and are enclosed within on screw 6, between screw 6 and rotor structure part 4.
During concrete the installation, first screw 6 is put to insulation magnetism isolating spacer circle 8 and insulation magnetic shield cylinder 7, magnetic isolation plate 3 and pressing plate 5 are installed on rotor structure part 4, rotor structure part 4 is provided with installing hole, the installing hole that the screw 6 that puts insulation magnetism isolating spacer circle 8 and insulation magnetic shield cylinder 7 is passed to rotor structure part 4 is connected on pressing plate 5, do not want trip bolt 6, axial insertion by pole shoe 2 along rotor, be arranged on pressing plate 5 times, after 2 installations of all pole shoes, the groove width of adjusting between pole shoe extremely is applicable to width, so that the installation of magnet steel 1, trip bolt, formed the magnetic shielding structure between rotor structure part and magnet steel and pole shoe, finally magnet steel 1 is installed in the groove between pole shoe 2.
The quantity of the size of magnet steel, pole shoe and data and magnetic isolation plate, screw, packing ring, sleeve etc. can be selected to install according to the needs of the size of motor.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection range of the present utility model.
Claims (10)
1. the magnetic shielding structure of a large directly driven permanent magnet wind generating, it is characterized in that: comprise pole shoe, magnetic isolation plate and pressing plate, pole shoe is fixed on magnetic isolation plate by pressing plate, and forms the magnet steel holddown groove between pole shoe, and magnetic isolation plate is positioned at magnet steel holddown groove below.
2. the magnetic shielding structure of a kind of large directly driven permanent magnet wind generating according to claim 1, it is characterized in that: described magnetic isolation plate is fixed on the rotor structure part by pole shoe by pressing plate and screw.
3. the magnetic shielding structure of a kind of large directly driven permanent magnet wind generating according to claim 2, is characterized in that: on described screw, also overlap magnetic shield cylinder and plain washer are arranged.
4. the magnetic shielding structure of a kind of large directly driven permanent magnet wind generating according to claim 2, it is characterized in that: described screw is stainless steel material.
5. the magnetic shielding structure of a kind of large directly driven permanent magnet wind generating according to claim 1, it is characterized in that: described pole shoe is provided with the pole shoe installation foot, and is fixed on magnetic isolation plate by pressing plate by this pole shoe installation foot.
6. the magnetic shielding structure of a kind of large directly driven permanent magnet wind generating according to claim 1, it is characterized in that: described magnetic isolation plate is glass-reinforced plastic material.
7. the magnetic shielding structure of a kind of large directly driven permanent magnet wind generating according to claim 1, it is characterized in that: described pressing plate is stainless steel material.
8. an application rights requires the large directly driven permanent magnet wind generating of the described magnetic shielding structure of any one in 1-7, it adopts built-in magnet pole formula rotor, it is characterized in that: the magnetic isolation plate of described magnetic shielding structure is fixedly connected with the rotor structure part, and the magnet steel of described rotor is fixed in the magnet steel holddown groove of described magnetic shielding structure.
9. large directly driven permanent magnet wind generating according to claim 8, it is characterized in that: described pressing plate, magnetic isolation plate, rotor structure part are fixedly connected with by screw.
10. large directly driven permanent magnet wind generating according to claim 9, is characterized in that: between described screw and rotor structure part, be provided with magnetic shield cylinder and plain washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202849112U CN203326757U (en) | 2013-05-22 | 2013-05-22 | Large-scale permanent magnet direct drive aerogenerator and magnetic separation structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202849112U CN203326757U (en) | 2013-05-22 | 2013-05-22 | Large-scale permanent magnet direct drive aerogenerator and magnetic separation structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326757U true CN203326757U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202849112U Expired - Lifetime CN203326757U (en) | 2013-05-22 | 2013-05-22 | Large-scale permanent magnet direct drive aerogenerator and magnetic separation structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564354A (en) * | 2020-12-03 | 2021-03-26 | 河北新四达电机股份有限公司 | Magnetic isolation method for permanent magnet motor |
-
2013
- 2013-05-22 CN CN2013202849112U patent/CN203326757U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564354A (en) * | 2020-12-03 | 2021-03-26 | 河北新四达电机股份有限公司 | Magnetic isolation method for permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |