CN203708146U - Permanent magnetic suspension disc type wind power generator - Google Patents
Permanent magnetic suspension disc type wind power generator Download PDFInfo
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- CN203708146U CN203708146U CN201420000681.7U CN201420000681U CN203708146U CN 203708146 U CN203708146 U CN 203708146U CN 201420000681 U CN201420000681 U CN 201420000681U CN 203708146 U CN203708146 U CN 203708146U
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- end cover
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Abstract
The utility model relates to a permanent magnetic suspension disc type wind power generator. The wind power generator comprises a disc type power generator part and a permanent magnetic suspension bearing which is arranged on the lower part of the disc type power generator part. A disc type motor stator iron core of the disc type power generator part is screwed on a central shaft via threads. The central shaft penetrates through a shaft ring of the permanent magnetic suspension bearing. On the lower part of the permanent magnetic suspension bearing, the central shaft and the shaft ring are circumferentially fixed via small screws and are axially fixed via circular nuts. A flange upper end cover of the permanent magnetic suspension bearing is connected with a lower end cover of a disc type motor rotor via the screws. The disc type motor rotor of the disc type power generator part is formed in a way that a disc type box body is formed by one upper end cover and one lower end cover via connection and accommodates a disc type motor stator. The wind power generator has characteristics of being stable in mechanics characteristics, great in starting performance and high in power generation efficiency. Meanwhile, the wind power generator has advantages of being simple in structure without lubrication or pollution, etc. and can work for a long time in severe environments.
Description
Technical field
It is bootable wind-driven generator that the utility model relates to a kind of ultralow wind speed, particularly a kind of permanent magnet suspension external rotor disc type three-phase alternating current wind-driven generator.
Background technology
Electric energy is the indispensable energy of modern society, and wind-powered electricity generation is the new forms of energy of nearly decades of emerging green non-pollution.Wind-driven generator is the device that wind energy is converted to electric energy, and its form is varied, and principle is all based on the law of electromagnetic induction.The characteristic feature that exchanges at present wind-driven generator is: 1) adopt the large drum forms of length; 2) adopt magnet exciting coil, brush and slip ring structure; 3) adopt and slide or rolling bearing, resistance of start square is large; 4) wind wheel is arranged on internal rotor.
Utility model content
The purpose of this utility model is to provide the permanent magnet suspension disk type wind-mill generator that a kind of mechanical characteristic is stable, startability is good, generating efficiency is high, have simple in structure, without the advantage such as lubricated, pollution-free, the while can work long hours under adverse circumstances.
In order to achieve the above object, design of the present utility model is:
The utility model adopts magnetic suspension bearing to replace original thrust bearing, substitutes thrust bearing bear axial force with magnetic suspension bearing, not only makes the shell integrated suspension of disc type electric machine, the square that reduces friction, simultaneously can also buffer shaft to concussion.Adopting disc type electric machine to replace conventional motors, is the disc type electric machine of external rotor internal stator type due to what adopt, wind wheel can be designed on the shell of disc type electric machine, has increased integrally-built stability.Disc type electric machine upper and lower covers is covered with fan-shaped permanent magnet simultaneously, simple in structure.Stator adopts cored armature, is by silicon steel sheet band material is formed along circumferential coiling.Iron core adopts fluting form, reduces air gap and increases air gap flux density, reduces required permanent magnet consumption, thereby can save the cost of generator.
According to above-mentioned utility model design, the utility model adopts following technical proposals:
A kind of permanent magnet suspension disk type wind-mill generator, comprise disk generator part and permanent-magnet suspension bearing, it is characterized in that: described permanent-magnet suspension bearing is positioned at disc type electric machine part bottom, the disk type motor stator core of described disk generator part screws on central shaft by screw thread, central shaft is through the blowout patche of permanent-magnet suspension bearing, in the bottom of permanent-magnet suspension bearing, central shaft (2) is circumferentially fixed by Screw with blowout patche, and carries out axial restraint by round nut; The flange upper end cover of permanent-magnet suspension bearing is connected with the bottom end cover of disk type electric motor rotor by screw; The disk type electric motor rotor of disk generator part connects into disc type box body by a upper end cover and a bottom end cover and contains disk type electric machine stator.
Described magnetic suspension bearing mainly contains blowout patche, flange upper end cover, permanent-magnetic clamp, spacer ring, Ceramic Balls assembly, several parts formations of bottom end cover.Flange upper end cover is connected with disc type electric machine, and permanent-magnetic clamp is arranged at the bottom of upper end cover simultaneously, and this permanent-magnetic clamp is relative with the permanent-magnetic clamp homopolarity on blowout patche, produces each other repulsion.All have ceramic ball bearing at the two ends of blowout patche, it act as radial location blowout patche simultaneously, keeps the steady running of blowout patche.
Described disc type electric machine mainly contains upper cover, lower cover, permanent magnet, stator core, central shaft composition.Permanent magnet adopts NdFeB material, on the fan-shaped circumference that is distributed in upper and lower end cap.Stator core is cored armature, is by silicon steel sheet band material is formed along circumferential coiling.Iron core adopts open flume type, can reduce air gap and increases air gap flux density, reduces required permanent magnet consumption, thereby can save the cost of generator.Disc type electric machine has adopted the form of external rotor internal stator, and magnetic Circuit Design adopts NN scheme, and the both sides of stator face two N magnetic poles, and winding is looped around in stator core yoke portion equably, and this winding also claims back-to-back winding.When user's line, the copper factor of back-to-back winding can be up to 80%.This winding construction is very simple, can select neatly pitch to improve electromotive force and magnetomotive force waveform, and coil dimension is identical, is convenient to manufacture, and can form more parallel branch, and end shape is neat, is conducive to heat radiation and enhance mechanical strength.
In the time that external force acts on the shell of disc type electric machine, can drive disc type electric machine to rotate, stator core just can produce three-phase alternating current by cutting magnetic induction line.Alternating current is sent out by central shaft inside by wire, completes mechanical energy and converts electric energy to.
Through above-mentioned improvement, the utility model design as compared with the past has following substantive distinguishing features and advantage:
(1) the little tray type structure of ratio in employing length/footpath, simple in structure;
(2) adopt permanent-magnet suspension bearing to replace traditional mechanical bearing, reduced staring torque, simultaneously axial carrying superior performance;
(3) generator external rotor and wind wheel are combined into one, and compact conformation is attractive in appearance, smooth running;
(4) adopt enclosed construction, adapt to work long hours under adverse circumstances, there are very large market prospects.
Brief description of the drawings
Fig. 1 is the utility model general structure front view;
Fig. 2 is the utility model axial permanent magnetic bearing front view;
Fig. 3 is the magnetic circuit schematic diagram of the utility model disc type electric machine;
Fig. 4 is the permanent magnet schematic diagram of arranging in the utility model disc type electric machine.
Embodiment
With preferred embodiment, the utility model is further described below:
Embodiment mono-:
Referring to Fig. 1 ~ Fig. 4, this permanent magnet suspension disk type wind-mill generator, comprise disk generator part and permanent-magnet suspension bearing, it is characterized in that: described permanent-magnet suspension bearing (6) is positioned at disc type electric machine part bottom, the disk type motor stator core (4) of described disk generator part screws on central shaft (2) by screw thread, central shaft (2) is through the blowout patche (1 ') of permanent-magnet suspension bearing (6), in the bottom of permanent-magnet suspension bearing (6), central shaft (2) is circumferentially fixed by Screw with blowout patche (1 '), and carry out axial restraint by round nut (7), the flange upper end cover (2 ') of permanent-magnet suspension bearing (6) is connected with the bottom end cover (5) of disk type electric motor rotor by screw, the disk type electric motor rotor of disk generator part connects into disc type box body by a upper end cover (3) and a bottom end cover and contains disk type electric machine stator (4).
Embodiment bis-:
The present embodiment and embodiment mono-are basic identical, and special feature is as follows:
Described permanent-magnet suspension bearing comprises blowout patche (1 '), flange upper end cover (2 '), permanent-magnetic clamp (3 '), spacer ring (4 '), Ceramic Balls assembly (5 '), bolt (6 '), packing ring (7 ') and bottom end cover (8 '), the top of the bottom of described flange upper end cover (2 ') and bottom end cover (8 ') is setting-in permanent-magnetic clamp (3 ') respectively, this permanent-magnetic clamp (3 ') is relative with permanent-magnetic clamp (the 3 ') homopolarity of setting-in on the bulge loop of blowout patche (1 ') middle part, all there is ceramic ball bearing (5 ') at the two ends of blowout patche (1 ') simultaneously.
The both sides of described disk type electric machine stator (4) face two fan-shaped permanent magnets (1) of disk type electric motor rotor, and the winding of disk type electric machine stator (4) is looped around in the yoke portion of stator core equably; Stator core is cored armature, is by silicon steel sheet band material is formed and adopt open flume type along circumferential coiling; The permanent magnet (1) of disk type electric motor rotor is the fan-shaped inner side that is arranged in upper end cover (3) and bottom end cover (5) evenly, adopts the mode of sticker to be fixed.
Described central shaft (2) adopts hollow form, upper end is connected with disk type electric machine stator (4) by external screw thread, lower end is connected with the blowout patche (1 ') of Permanent-magnet bearing (6) by Screw and round nut (7), wire (8) is derived by the endoporus of central shaft (2), is three-phase alternating current.
Embodiment tri-:
This permanent magnet suspension disk type wind-mill generator integral installation figure is referring to Fig. 1:
This figure is mainly made up of upper cover (3), lower cover (5), permanent magnet (1), stator core (4), central shaft (2), wire (8) and permanent-magnet suspension bearing (6).Permanent magnet (1) adopts NdFeB material, on the circumference of fan-shaped being distributed in (3) lid and lower cover (5).Stator core (4) is cored armature, is by silicon steel sheet band material is formed along circumferential coiling.Iron core (4) adopts open flume type, can reduce air gap and increases air gap flux density, reduces required permanent magnet consumption, thereby can save the cost of generator.Disk type motor stator core (4) is screwed and is fixed together by screw thread with central shaft (2), and central shaft (2) is connected with the blowout patche (1 ') of magnetic suspension bearing (6) again.Circumferentially located by Screw, bear axial force by round nut (7).Together with disc type electric machine shell is fixed by screws in the flange upper end cover (2 ') of magnetic suspension bearing (6).Be loaded on the shell of magnetic suspension bearing (6) with regard to the weight that has ensured disc type electric machine shell like this, and the final magnetic supporting by magnetic suspension bearing.Overall structure is the entirety of sealing, has without the advantage such as lubricated, pollution-free, and the while can work long hours under adverse circumstances.
Axial permanent magnetic bearing is referring to Fig. 2:
Axial magnetic suspension bearing comprises blowout patche (1 '), flange upper end cover (2 '), permanent-magnetic clamp (3 '), spacer ring (4 '), Ceramic Balls assembly (5 '), bolt (6 '), packing ring (7 '), several parts of bottom end cover (8 ').Flange upper end cover (2 ') is connected with disc type electric machine, the bottom setting-in permanent-magnetic clamp (3 ') of upper end cover simultaneously, this permanent-magnetic clamp (3 ') is relative with the permanent-magnetic clamp homopolarity on blowout patche, produces each other repulsion, and this repulsion is the power of bearing axial load.All have ceramic ball bearing (5 ') at the two ends of blowout patche (1 '), it act as radial location blowout patche simultaneously, keeps the steady running of blowout patche.The protection bearing at these magnetic suspension bearing blowout patche (1 ') two ends adopts ceramic ball bearing, mainly considers intensity and non-magnetic feature that pottery is high, so just can not affect the distribution of inner magnet field wire.Three magnet rings that inner magnet ring adopts simultaneously, do axially bidirectional stress like this.
In disc type electric machine, the distribution map schematic diagram of magnetic circuit is referring to Fig. 3:
Magnetic circuit in disc type electric machine is mainly produced by upper cover (3) and the permanent magnet (1) on lower cover (5), and centre is stator core (4).The armature winding of Disk Shape Permanent Magnet Synchronous Generator is radially-arranged, active conductor is positioned on the face in permanent magnet front, in the time that permanent magnet (1) is dragged to synchronous speed by wind energy conversion system, will in air gap, produce and the rotating magnetic field of armature winding interlinkage, thereby in armature winding, induce three-phase alternating current electromotive force.The both sides of stator core (4) face two N magnetic poles, and winding is looped around in stator core (4) yoke portion equably, and this winding also claims back-to-back winding.When user's line, the copper factor of back-to-back winding can be up to 80%.This winding construction is very simple, is convenient to manufacture, and end shape is neat simultaneously, is conducive to heat radiation and enhance mechanical strength.
Permanent magnet arrangement mode in disc type electric machine is as Fig. 4:
Taking lower cover (5) as example, can see evenly fan-shaped permanent magnet of arranging (1) and gap (5 ' 2), bolt hole (5 ' 3).Permanent magnet (1) sticker is in the inner side of upper cover (3) and lower cover (5), and this simple and reliable for structure, air gap is little and even, and smooth running, efficiency are high.
Claims (4)
1. a permanent magnet suspension disk type wind-mill generator, comprise disk generator part and permanent-magnet suspension bearing, it is characterized in that: described permanent-magnet suspension bearing (6) is positioned at disc type electric machine part bottom, the disk type motor stator core (4) of described disk generator part screws on central shaft (2) by screw thread, central shaft (2) is through the blowout patche (1 ') of permanent-magnet suspension bearing (6), in the bottom of permanent-magnet suspension bearing (6), central shaft (2) is circumferentially fixed by Screw with blowout patche (1 '), and carry out axial restraint by round nut (7), the flange upper end cover (2 ') of permanent-magnet suspension bearing (6) is connected with the lower cover (5) of disk type electric motor rotor by screw, the disk type electric motor rotor of disk generator part connects into disc type box body by a upper end cover (3) and a bottom end cover and contains disk type electric machine stator (4).
2. permanent magnet suspension disk type wind-mill generator according to claim 1, it is characterized in that: described permanent-magnet suspension bearing comprises blowout patche (1 '), flange upper end cover (2 '), permanent-magnetic clamp (3 '), spacer ring (4 '), Ceramic Balls assembly (5 '), bolt (6 '), packing ring (7 ') and bottom end cover (8 '), the top of the bottom of described flange upper end cover (2 ') and bottom end cover (8 ') is setting-in permanent-magnetic clamp (3 ') respectively, this permanent-magnetic clamp (3 ') is relative with permanent-magnetic clamp (the 3 ') homopolarity of setting-in on the bulge loop of blowout patche (1 ') middle part, all there is ceramic ball bearing (5 ') at the two ends of blowout patche (1 ') simultaneously.
3. permanent magnet suspension disk type wind-mill generator according to claim 1, it is characterized in that: the both sides of described disk type electric machine stator (4) face two fan-shaped permanent magnets (1) of disk type electric motor rotor, and the winding of disk type electric machine stator (4) is looped around in the yoke portion of stator core equably; Stator core is cored armature, is by silicon steel sheet band material is formed and adopt open flume type along circumferential coiling; The permanent magnet (1) of disk type electric motor rotor is the fan-shaped inner side that is arranged in upper end cover (3) and bottom end cover (5) evenly, adopts the mode of sticker to be fixed.
4. permanent magnet suspension disk type wind-mill generator according to claim 1, it is characterized in that: described central shaft (2) adopts hollow form, upper end is connected with disk type electric machine stator (4) by external screw thread, lower end is connected with the blowout patche (1 ') of Permanent-magnet bearing (6) by Screw and round nut (7), wire (8) is derived by the endoporus of central shaft (2), is three-phase alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420000681.7U CN203708146U (en) | 2014-01-02 | 2014-01-02 | Permanent magnetic suspension disc type wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420000681.7U CN203708146U (en) | 2014-01-02 | 2014-01-02 | Permanent magnetic suspension disc type wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708146U true CN203708146U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420000681.7U Expired - Fee Related CN203708146U (en) | 2014-01-02 | 2014-01-02 | Permanent magnetic suspension disc type wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203708146U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050017A (en) * | 2017-12-28 | 2018-05-18 | 桂林电子科技大学 | Integrated vertical axis aerogenerator |
| CN109904951A (en) * | 2017-12-11 | 2019-06-18 | 北京金风科创风电设备有限公司 | Ultra-high-speed permanent magnet disc type motor and mounting method thereof |
| CN110486382A (en) * | 2019-08-30 | 2019-11-22 | 上海大学 | A kind of diameter axial direction Permanent-magnet bearing system and device |
-
2014
- 2014-01-02 CN CN201420000681.7U patent/CN203708146U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904951A (en) * | 2017-12-11 | 2019-06-18 | 北京金风科创风电设备有限公司 | Ultra-high-speed permanent magnet disc type motor and mounting method thereof |
| CN108050017A (en) * | 2017-12-28 | 2018-05-18 | 桂林电子科技大学 | Integrated vertical axis aerogenerator |
| CN110486382A (en) * | 2019-08-30 | 2019-11-22 | 上海大学 | A kind of diameter axial direction Permanent-magnet bearing system and device |
| CN110486382B (en) * | 2019-08-30 | 2021-04-09 | 上海大学 | Radial-axial permanent magnetic bearing system device |
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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: 20140709 Termination date: 20180102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |