CN102025199A - Annular breeze generator - Google Patents
Annular breeze generator Download PDFInfo
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- CN102025199A CN102025199A CN2009101953865A CN200910195386A CN102025199A CN 102025199 A CN102025199 A CN 102025199A CN 2009101953865 A CN2009101953865 A CN 2009101953865A CN 200910195386 A CN200910195386 A CN 200910195386A CN 102025199 A CN102025199 A CN 102025199A
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- generator
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- iron core
- groove
- breeze
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Abstract
An annular breeze generator comprises a rotor body (1), a stator body (2) and a motor housing (3); wherein the rotor body is provided with a rotor shaft (11) and a permanent magnet (12); the motor housing (3) is provided with an end cap; the stator body (2) is a circular iron core without inner groove provided with at least three outer convex teeth (22), and with a plurality of armature windings (21) arranged by segments and winded on the circular iron core. The annular breeze generator is a generator without groove, has a small starting resistance moment because of no wire groove on the stator iron core, thoroughly eliminates the groove effect and groove resistance moment, can be started up in breeze, generates a good output wave and has a high efficiency with having no a tooth harmonic wave and an energy loss.
Description
Technical field
The invention belongs to the ac synchronous motor field, specifically, is the magneto alternator structure that proposes a kind of slotless.
Background technology
In wind power generation field, generator changes mechanical energy into electric energy, requisite electromechanical energy conversion device.In order to obtain more wind energy, particularly also can utilize the energy generating of gentle breeze, generator must have very little starting reactance square, but existing small-sized wind power generator extensively adopts permanent magnet rotor structure, stator to adopt the armature of " teeth groove structure ", promptly utilize tooth to guide magnetic current, utilize wire casing to lay winding, and with the tooth interlinkage, produce induced voltage at the volley.The existence of teeth groove structure can cause cogging torque, and it is to be interacted by the magnetic field of permanent magnet of the rotor teeth groove with stator core, the moment of resistance that forms at circumferencial direction.The electric current of this moment of resistance and stator is irrelevant, and it always attempts rotor is positioned on some position.The teeth groove structure also can produce slot ripples and relevant energy loss, reduces the efficient of generator.Just because of wind-driven generator need produce magnetic field by permanent magnet, and the cogging torque that magnetic field causes has greatly increased the resistance that starts, and therefore can't start generating in gentle breeze.
Summary of the invention
Generator of the present invention is to eliminate the teeth groove resistance by the teeth groove on the cancellation stator core, realize what gentle breeze started, the annular gentle breeze-driven generator is made up of rotor block (1), stator body (2) and electric machine casing (3), armature spindle (11) and permanent magnet (12) are arranged on the rotor block, two end caps are arranged on the electric machine casing (3), it is characterized by, stator body (2) be one do not have in circular groove but have the annular solid iron core of at least three outer double wedges (22), and there is a plurality of armature winding (21) segmentation to arrange, wears on this annular solid iron core.
By above-mentioned improvement of the present invention, cancelled tooth and groove on the ring in the stator core, where rotor at will forwards to, and magnetic resistance is all equally big, and the magnetic line of force does not change, and the teeth groove resistance is zero, effect is clearly; Because no teeth groove structure, slot ripples and tooth portion magnetic field are scratched the living energy loss of movable property and also be reduced to zero simultaneously, generator efficiency increases.
Description of drawings
Fig. 1 is the radial section schematic diagram of the annular gentle breeze-driven generator structure of the outer double wedge of band of the present invention.
Fig. 2 is the radial section schematic diagram of the annular gentle breeze-driven generator structure of band cushion block of the present invention.
Embodiment
As can be seen, generator of the present invention is made up of rotor block, stator body and electric machine casing three parts, and armature spindle and permanent magnet are arranged on the rotor block, and end cap is arranged on the electric machine casing in Fig. 1, and this is identical with existing conventional electric generators.But stator core of the present invention is a slotless configuration, just because of there is not wire casing, so armature winding just can't be placed in the ad hoc stator slot of original motor, for this reason, has to winding is worn on this annular solid iron core.So generator of the present invention just has the structure title of ring generator.
Because a limit of winding is also arranged on the outer shroud of ring generator, just must increase double wedge outside several in the outer rim of ring, stator core can lean on these outer double wedges securely to be connected with electric machine casing and locate, so that rotor puts on the transmission of torque of stator to casing, simultaneously, outer double wedge has also played supporting and positioning action, has avoided the outer rim of winding and electric machine casing to collide, and the gap that forms between outer double wedge and electric machine casing helps the circulation of air heat radiation.
Outer double wedge also can replace with cushion block, and so, stator core just becomes pure annular, and mould is simple, punching out is convenient, material economy, helps reducing the manufacturing cost of generator.Cushion block should adopt the non-magnetic material, and particularly when electric machine casing was ferrimagnet, if adopt the magnetic conductivity cushion block, magnetic pole just might produce leakage field by electric machine casing, and the cushion block scheme must be resolved the orientation problem of stator axis.
The number N of generator windings of the present invention, and between rotor magnetic pole number of pole-pairs 2p certain relation is arranged.Work as N=2p, and winding is when annular circumferential distributes evenly, the phase place of the ac induction voltage that winding produces or identical or opposite, winding can be exported single phase alternating current (A.C.) voltage by serial or parallel connection, and ring generator at this moment is exactly a single-phase generator.
Clearly, when N=4p or N=6p, can obtain two-phase or threephase generator.
When N=2p*m (m is a positive integer), when identical (or opposite) phase windings is connected by rule, generator then of the present invention just becomes the multiphase generator of a m phase.
Because a limit of armature winding (21) is in the air gap of rotor, bump winding for avoiding rotor block to wipe, so the electromagnetism air gap of generator of the present invention is bigger than conventional electric generators, air-gap field intensity B is reduced, can adopt neodymium iron boron superpower permanet magnetic body for this reason, can guarantee B value enough in the annular core and guarantee the higher rated power of generator.
Claims (5)
1. annular gentle breeze-driven generator, form by rotor block (1), stator body (2) and electric machine casing (3), armature spindle (11) and permanent magnet (12) are arranged on the rotor block, two end caps are arranged on the electric machine casing (3), it is characterized by, stator body (2) be one do not have in circular groove but have the annular solid iron core of at least three outer double wedges (22), and a plurality of armature winding (21) segmentation layout is arranged, wear on this annular solid iron core.
2. the described annular gentle breeze-driven generator of claim 1 is characterized by, and stator body (2) is pure annular core, and outer double wedge is replaced by cushion block.
3. claim 1 or 2 described annular gentle breeze-driven generators is characterized by, and generator is single-phase output.
4. claim 1 or 2 described annular gentle breeze-driven generators is characterized by, and generator is two-phase or three-phase output.
5. claim 1 or 2 described annular gentle breeze-driven generators is characterized by, and generator is heterogeneous output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101953865A CN102025199A (en) | 2009-09-09 | 2009-09-09 | Annular breeze generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101953865A CN102025199A (en) | 2009-09-09 | 2009-09-09 | Annular breeze generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102025199A true CN102025199A (en) | 2011-04-20 |
Family
ID=43866187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101953865A Pending CN102025199A (en) | 2009-09-09 | 2009-09-09 | Annular breeze generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102025199A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849581A (en) * | 2016-10-24 | 2017-06-13 | 瑞声科技(新加坡)有限公司 | Permagnetic synchronous motor |
| CN109067123A (en) * | 2018-07-31 | 2018-12-21 | 华南理工大学 | A kind of brushless slotless of Novel splicing formula is without rectification adverser permanent magnet DC motor |
-
2009
- 2009-09-09 CN CN2009101953865A patent/CN102025199A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849581A (en) * | 2016-10-24 | 2017-06-13 | 瑞声科技(新加坡)有限公司 | Permagnetic synchronous motor |
| CN109067123A (en) * | 2018-07-31 | 2018-12-21 | 华南理工大学 | A kind of brushless slotless of Novel splicing formula is without rectification adverser permanent magnet DC motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |