CN105429323A - Outer rotor type small-scale wind generator structure - Google Patents
Outer rotor type small-scale wind generator structure Download PDFInfo
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- CN105429323A CN105429323A CN201410470975.0A CN201410470975A CN105429323A CN 105429323 A CN105429323 A CN 105429323A CN 201410470975 A CN201410470975 A CN 201410470975A CN 105429323 A CN105429323 A CN 105429323A
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- rotor
- generator
- permanent magnet
- winding
- stator
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- 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
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- Permanent Magnet Type Synchronous Machine (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention relates to an outer rotor type small-scale wind generator structure, which includes a bearing system, a rotor and a stator. A maintenance-free high precision rolling bearing is utilized by the bearing system, an inner ring of the rolling bearing is in interference fit connection with a main shaft, and an outer ring of the rolling bearing and front and back end cap bearing chambers are bonded through glue. The extending end of the main shaft is connected to a frame, and blades and an air guide dome are installed on a front end cap. The rotor is formed by the front end cap and a back end cap connected via bolts. A front end cap cavity includes a magnetic conductive ring, a permanent magnet positioning stand and a permanent magnet, in this way, a great permanent magnet rotor magnetic field is provided, and the efficiency of the generator is improved. The stator includes the main shaft, a stator iron core, an insulating support, stator windings and a printed circuit board. The stator windings are distributed in a three-phase manner and are wound by a high precision winding machine, end portions of the windings are the smallest end portions, and the utilization rate of the windings is improved. The windings are connected in a certain manner and connected together on the basis of the printed circuit board. Moreover, the windings with the same phase are connected in parallel, so the internal resistance of the generator is reduced, and the output power of the generator is increased.
Description
Technical field
What this patent related to is a kind of external-rotor-type gentle breeze-driven generator structure.
Background technology
Generally traditional gentle breeze-driven generator structure as shown in Figure 1.
The generator amature permanent magnet of this structure adopts neodymium iron boron, and starting torque is very large, under 4m/s and following wind speed, is difficult to start, therefore cannot generates electricity.
So people attempt the staring torque reducing generator, adopt another kind of gentle breeze-driven generator structure as shown in Figure 2.
The generator amature permanent magnet of this structure still adopts Nd-Fe-B, but stator adopts iron-core-free structure, to reach the object reducing generator staring torque.But stator coil internal resistance is very large, therefore causes again generator efficiency to reduce.Even if normally rotate under gentle breeze environment, but due to efficiency low, power output is quite limited, is difficult to satisfy the demand.
Because above-mentioned existing product every shortcoming of deriving, the creation of this case exhausts its intelligence then, to be engaged in affiliated industry experience for many years, to concentrate on studies and is innovated improvement, finally successfully having researched and developed this part external-rotor-type gentle breeze-driven generator structure case, is the creation that a tool effect is promoted in fact.
Summary of the invention
For effectively solving the problem, the object of this patent is, provides a kind of external-rotor-type gentle breeze-driven generator structure.Rotor adopts the permanent magnet that magnetic property is good, and join custom-designed permanent magnet positioning seat, permanent magnet is fixed by viscose glue and permanent magnet positioning seat.The technique of the method is more simple and reliable than adopting single metal shell fragment to locate permanent magnet, well more a lot of than employing injection magnet ring on magnetic property.Permanent magnet position distribution is even, without the structure of any damage magnetic property.Good rotor field is provided, improves generator efficiency.
Another object of this patent is, provides a kind of outward rotation type gentle breeze-driven generator structure.Stator winding adopts three-phase distribution, and each phase winding uses precise winding machine directly around entering, and winding overhang has reached minimum, improves the utilance of winding, thus improves generator efficiency.
The another object of this patent is, provides a kind of outward rotation type gentle breeze-driven generator structure.Stator adopts a dedicated printed circuit board, is connected by each winding, reduce the internal resistance of generator, thus improve generator efficiency according to certain mode.
In order to achieve the above object, this patent provides a kind of external-rotor-type gentle breeze-driven generator structure.Comprise bearing arrangement, rotor and stator three parts.Bearing arrangement uses non-maintaining high-precision rolling bearing, and its inner ring and main shaft adopt interference fit to connect, and outer ring and front and rear cover bearing chamber adopt gluing connecing.Main shaft external part connects with frame, and blade and kuppe are arranged on front end housing.Rotor is made up of the front and rear cover by Bolt Connection.Front end housing inner chamber comprises magnetic guiding cycle, permanent magnet positioning seat and permanent magnet, provides good p-m rotor magnetic field by this, can improve generator efficiency.Stationary part is by main shaft, and stator core, insulating frame, stator winding and printed circuit board (PCB) form.Stator winding adopts three-phase distribution, and use the coiling of high accuracy coil winding machine, the end of each winding has reached minimum, improves the utilance of winding.And by certain connecting mode, each coiling is linked up based on printed circuit board (PCB), gets up with alternate each group of winding parallel, reduce the internal resistance of generator, improve output of a generator.
Characteristic on the above-mentioned purpose of this patent and structure and fuction thereof, is explained the preferred embodiments according to institute's accompanying drawing.
Accompanying drawing explanation
Fig. 1 is traditional gentle breeze-driven generator structure () cross-sectional schematic;
Fig. 2 is traditional gentle breeze-driven generator structure (two) cross-sectional schematic;
Fig. 3 is the cross-sectional schematic of the better enforcement of this patent;
Fig. 4 is the permanent magnet positioning seat schematic diagram of this patent;
Fig. 5 is the stator winding schematic diagram of this patent;
Fig. 6 is the power stage curve chart of this patent.
Annex description of symbols: 10-stator core; 101-stator winding; 102-rolling bearing; 11-end cap; 12-main shaft; 13-permanent magnet; 20-stator support; 201-main shaft; 202-permanent magnet; 203-rolling bearing; 21-stator winding; 22-rotor field spider; 311-rolling bearing; 3111-housing washer; 3112-rolling bearing inner ring; 312-rolling bearing; 3121-housing washer; 3122-rolling bearing inner ring; 321-front end housing; 3211-bearing chamber; 322-rear end cap; 3221-bearing chamber; 323-permanent magnet positioning seat; 324-permanent magnet; 325-magnetic guiding cycle; 326-sealing ring; 327-attachment bolt; 331-stator core; 3311-stator core endoporus; 332-insulating frame; Insulating frame after 3321-; Insulating frame before 3322-; 333-stator winding; 334-printed circuit board (PCB); 335-main shaft; 3351-axle journal; 3352-axle journal; 3353-collar; 336-wire.
Embodiment
This patent is to provide a kind of external-rotor-type gentle breeze-driven generator structure.Fig. 3 is this patent preferred embodiment.Rolling bearing inner ring 3112 and axle journal 3351, rolling bearing inner ring 3122 adopts interference fit to connect with axle journal 3352.Housing washer 3111 and bearing chamber 3221, housing washer 3121 and bearing chamber 3211 adopt gluing connecing.Main shaft external part connects with frame, and blade and kuppe are arranged on front end housing 321.Rotor is made up of with rear end cap 322 front end housing 321 connected by attachment bolt 327 and sealing ring 326.Front end housing 321 inner chamber comprises magnetic guiding cycle 325, permanent magnet positioning seat 323 and permanent magnet 324, provides good p-m rotor magnetic field by this, can improve generator efficiency.The structure of permanent magnet positioning seat 323 as shown in Figure 4, determine according to permanent magnet quantity by the quantity of permanent magnet fixed bit.Stationary part is by main shaft 335, and stator core 331, insulating frame 332, stator winding 333 and printed circuit board (PCB) 334 form.Stator core endoporus 3311 adopts interference fit to connect with axle journal 3353.Rear insulating frame 3321 is enclosed within stator coring groove 3312 with front insulating frame 3322, plays insulating effect.As shown in Figure 5, stator winding 333, adopt three-phase distribution, use precise winding machine, coiling is assemblied on the insulating frame 332 of core slots 3312.The end of each winding has reached minimum, improves the utilance of winding.And by certain connecting mode, each winding is linked up based on printed circuit board (PCB) 334, gets up with alternate each group of winding parallel, reduce the internal resistance of generator, improve output of a generator.Electric energy exports and is then transmitted by wire 336, and surveys the power curve obtained as shown in Figure 6.
More than illustrate this patent just illustrative, and nonrestrictive.Those of ordinary skill in the art understand, and when not departing from the spirit and scope that following claims limit, can make many amendments, change, or equivalence, but all will fall in the protection range of this patent.
Claims (7)
1. walk around outward a minor gentle breeze-driven generator structure, it is characterized in that, it comprises:
One front end housing, inner chamber fixes magnetic guiding cycle, permanent magnet positioning seat and permanent magnet, to provide the rotor field of generator; Central part has a bearing chamber, in order to rigid bearing with support rotor;
One bonnet, central part has a bearing chamber, in order to rigid bearing with support rotor;
One stator, comprises main shaft, stator core, insulating frame, stator winding and printed circuit board (PCB);
One connects combination, comprises bolt and sealing ring.
2. external-rotor-type gentle breeze-driven generator structure as claimed in claim 1, it is characterized in that, generator amature adopts more than two watts of shape magnetites (permanent magnet), and permanent magnet adopts permanent magnet positioning seat to realize circumferencial direction location; Positioning seat material is not limited to plastic-injection part or aluminum alloy die casting; Permanent magnetic material is not limited to ferrite and neodymium iron boron.
3. external-rotor-type gentle breeze-driven generator structure as claimed in claim 1, is characterized in that, generator amature adopts magnetic guiding cycle to improve rotor magnetic circuit, reduces magnetic circuit leakage field, increases air gap flux density value; Magnetic guiding cycle adopts permeability magnetic material, adopts bonding or wraps the mode of penetrating and be fixed in generator ' s cover.
4. external-rotor-type gentle breeze-driven generator structure as claimed in claim 1, it is characterized in that, rotor permanent magnet is fixed in front end housing or rear end cap.
5. external-rotor-type gentle breeze-driven generator structure as claimed in claim 1, is characterized in that, by a specific printed circuit board by each winding parallel, reduces generator internal resistance, increases output of a generator; Printed circuit board (PCB) adopts single or multiple lift plate, on demand by each for homophase winding parallel combination, to reduce the wiring complexity of winding parallel, improves reliability.
6. external-rotor-type gentle breeze-driven generator structure as claimed in claim 1, is characterized in that, with metallic conductor by each winding parallel, be then embedded in an insulation fabric part, reduces generator internal resistance, increases output of a generator.
7. external-rotor-type gentle breeze-driven generator structure as claimed in claim 1, it is characterized in that, generator adopts direct coiling list apart from winding, the centre of winding is permeability magnetic material or soft magnetic material, single apart from winding reduction End winding power consumption, adopt magnetic conduction or soft magnetic material in the middle of winding, increase the close value of generator windings cutting magnetic, reach the object increasing electrical power generators power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410470975.0A CN105429323A (en) | 2014-09-17 | 2014-09-17 | Outer rotor type small-scale wind generator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410470975.0A CN105429323A (en) | 2014-09-17 | 2014-09-17 | Outer rotor type small-scale wind generator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105429323A true CN105429323A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410470975.0A Pending CN105429323A (en) | 2014-09-17 | 2014-09-17 | Outer rotor type small-scale wind generator structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958679A (en) * | 2016-05-27 | 2016-09-21 | 天津大学 | Hybrid magnetic flux permanent magnetic wheel hub motor for driving of electric automobile |
-
2014
- 2014-09-17 CN CN201410470975.0A patent/CN105429323A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958679A (en) * | 2016-05-27 | 2016-09-21 | 天津大学 | Hybrid magnetic flux permanent magnetic wheel hub motor for driving of electric automobile |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |