CN202076908U - Double-winding permanent magnet synchronous generator with low rotation speed - Google Patents
Double-winding permanent magnet synchronous generator with low rotation speed Download PDFInfo
- Publication number
- CN202076908U CN202076908U CN201120153608XU CN201120153608U CN202076908U CN 202076908 U CN202076908 U CN 202076908U CN 201120153608X U CN201120153608X U CN 201120153608XU CN 201120153608 U CN201120153608 U CN 201120153608U CN 202076908 U CN202076908 U CN 202076908U
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- CN
- China
- Prior art keywords
- permanent magnet
- magnet synchronous
- synchronous generator
- windings
- magneto alternator
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a permanent magnet synchronous generator which comprises a rotor (1) with neodymium-iron-boron magnets and a stator (2), wherein the stator is made with windings instead of silicon steel plates by integral epoxy casting, the windings include two winding sets which have the same structure that the same numbers and sizes of coils are connected in a certain order, and the two winding sets are led out independently and located in the same magnetic field. Besides, the permanent magnet synchronous generator comprises a main shaft (3) which fixes the rotor and can not rotate. The permanent magnet synchronous generator can output electrical energy when rotating at a low speed.
Description
Technical field
The utility model relates to a kind of magneto alternator.
Background technology
At present, the wind-driven generator of breeze type of the prior art or low wind speed, the comparatively advanced part of its structure adopts permanent magnet excitation nothing more than, the stator and rotor structure of no iron core, no teeth groove.This class wind-driven generator has saved collector ring and brush, has reduced maintenance work, has increased reliability, has improved the efficient of generator.Secondly, this class wind-driven generator rotating speed is lower, thus wind wheel can with the direct couple drive of generator, and make electric machine structure simply many, whole system weight saving motor cost is reduced.Particularly do not have slot effect and do not produce magnetic resistance moment, can make the starting reactance square become very little, further improved the Wind Power Utilization degree.But, however, make wind-driven generator under the very low situation of wind speed, send the electric power that can use for load and the scope of application that enlarges wind energy and current, still very difficult.
Summary of the invention
The utility model is a kind ofly can just export electric energy when the slow-speed of revolution, and a kind of magneto alternator that when high rotating speed, also can use.
The rotor (1) that the utility model is made up of Nd-Fe-B magnet steel (6) and end cap, without silicon steel sheet is made into iron core only by winding with epoxy casting all-in-one-piece stator (2), this winding is to be connected into identical according to certain rule and to be drawn separately and with being in the cover of two under same magnetic field winding by some quantity and the identical coil of shape.In addition, a main shaft (3) that does not rotate that also has fixed rotor (1) and stator (2).When the utility model drove at gentle breeze or with the low water head current, two overlap independently, and winding all can send electricity, can not be needed battery charging but voltage is very faint.At this moment, we get up two cover windings in series, and (this two covers winding can be connected after the first rectification, the back rectification of also can connecting is earlier used.) voltage that generator is sent doubles, thereby realize that generator really just can generate electricity when the current of very low wind speed or very low head drive, the charging of accumulators group, can improve to greatest extent wind energy or water can usage factor.
When wind-force was very big or The turbulent river crashes its way through, the voltage that generator sends was very high, then can make two cover windings into back in parallel accumulators group charging by series connection, increased to the load power output.Enlarge the scope of application of wind-force and current.
Description of drawings
The utility model is described in further detail below by drawings and Examples.
Accompanying drawing 1: the utility model general assembly drawing.
Accompanying drawing 2: stator installation diagram.
Code name among the figure: 1 rotor, 2 stators, 3 main shafts, 4 lead lines, 5 bearings, 6 magnet steel.
Embodiment
The utility model is made up of above-mentioned parts as shown in Figure 1: by the rotor (1) that coil in the garden and end cap constitutes of Nd-Fe-B magnet steel, magnetic conduction, without silicon steel sheet is made into iron core only by winding with epoxy casting all-in-one-piece stator (2), this winding is to be connected into identical according to certain rule and to be drawn separately and with being in two under same magnetic field cover winding, they are drawn outside the motor by two groups of lead-out wires (4) respectively by quantity and the identical coil of shape.In addition, a main shaft (3) that does not rotate that also has fixed rotor (1) and stator (2).
Because the utility model does not have stator core, does not more have a slot effect, thus do not have bad magnetic resistance moment, thereby the very little further raising wind energy of starting reactance square or water can utilize degree.Use the Nd-Fe-B permanent magnet excitation,, reduced maintenance work, improved the efficient and the reliability of generator without collector ring and brush.Low thereby the wind wheel of generator speed can directly drive generator, and then makes generator system simple in structure, the weight saving of whole system, and motor cost descends.Because stator is no core structure, do not have slot effect, but thereby Mining with integer groove winding, this sampling technology is simple, can increase work efficiency, reduce production cost.
Claims (8)
1. magneto alternator comprises:
The rotor (1) of Nd-Fe-B magnet steel is housed,
By winding with epoxy casting all-in-one-piece stator (2), and
The main shaft of fixed stator and rotor (3).
2. magneto alternator according to claim 1, described winding is to be connected according to same rule by some quantity and the identical two groups of coils of shape to form, it is outer and be in generator under the identical magnetic field that described winding is drawn generator separately.
3. magneto alternator as claimed in claim 2, it has two groups of windings.
4. magneto alternator as claimed in claim 3, rectification again after wherein said two groups of windings can be connected in series.
5. its magneto alternator as claimed in claim 4, rectification again after wherein said two groups of windings also can be connected in parallel.
6. its magneto alternator as claimed in claim 5, wherein said two groups of windings also can be connected in series after the first rectification again.
7. its magneto alternator as claimed in claim 6, wherein said two groups of windings also can be connected in parallel after the first rectification again.
8. magneto alternator according to claim 1, wherein said main shaft does not rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120153608XU CN202076908U (en) | 2011-05-13 | 2011-05-13 | Double-winding permanent magnet synchronous generator with low rotation speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120153608XU CN202076908U (en) | 2011-05-13 | 2011-05-13 | Double-winding permanent magnet synchronous generator with low rotation speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076908U true CN202076908U (en) | 2011-12-14 |
Family
ID=45114985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120153608XU Expired - Fee Related CN202076908U (en) | 2011-05-13 | 2011-05-13 | Double-winding permanent magnet synchronous generator with low rotation speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202076908U (en) |
-
2011
- 2011-05-13 CN CN201120153608XU patent/CN202076908U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20200513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |