CN202495819U - Air-air cooling double-fed asynchronous aerogenerator - Google Patents
Air-air cooling double-fed asynchronous aerogenerator Download PDFInfo
- Publication number
- CN202495819U CN202495819U CN2012201362097U CN201220136209U CN202495819U CN 202495819 U CN202495819 U CN 202495819U CN 2012201362097 U CN2012201362097 U CN 2012201362097U CN 201220136209 U CN201220136209 U CN 201220136209U CN 202495819 U CN202495819 U CN 202495819U
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Abstract
The utility model relates to an air-air cooling double-fed asynchronous aerogenerator, in particular to an air-air cooling double-fed asynchronous aerogenerator with good radiation effects. The aerogenerator of the utility model solves the problem that in the prior double-fed asynchronous aerogenerators, unreasonable ventilation structures cause bad motor ventilation and radiation effects. The air-air cooling double-fed asynchronous aerogenerator comprises a support, a rotary shaft, a stator, a rotor, and an air-air cooler, wherein an axial ventilating duct is arranged on the rotary shaft, an radial air vent of the rotor is arranged on a rotor core, an radial air vent of the stator is arranged on a stator core, and a baffle plate is fixed in the axial ventilating duct. A left centrifugal type fan is fixed at the left end of the rotary shaft, while a right centrifugal type fan is fixed at the right end of the rotary shaft; and a rotor winding connecting terminal is positioned on the left of the rotor and the stator, while a stator winding connecting terminal is positioned on the left of the rotor and the stator. In the aerogenerator of the utility model, a mixing ventilation structure is adopted so that the radiation effects are better, and the ventilation structure can be widely used in double-fed asynchronous aerogenerators.
Description
Technical field
The utility model relates to absolutely empty cooling double-fed asynchronous wind generator, is specially but dual-feed asynchronous wind power generator of a kind of low temperature lift-off air cooling with mixed ventilation structure.
Background technology
The hollow cooler that existing absolutely empty cooling double-fed asynchronous wind generator comprises support, rotating shaft, stator, rotor and is positioned at the support top; Be supported with the annular gusset (outside of square-outside and round-inside finger ring shape gusset is square and inboard for circular) of several square-outside and round-insides in the support, be fixed with the axial gusset that several are used for support stator on the inwall of annular gusset; The top of support has the air inlet that is positioned at the support two ends that communicates with hollow cooler and is positioned at the middle air outlet of support; Rotating shaft is provided with several axial ventilation roads, and rotor core is provided with several rotor radial ventilation holes that communicates with the axial ventilation road, and stator core is provided with the stator radial ventilation hole identical at interval with the rotor radial ventilation hole; Rotor winding line end all is positioned at the homonymy of rotor.The heat-generating units of generator mainly contains rotor winding line end, stator and rotor cores; Draft type adopts radially compound ventilation structure; Being cold wind in the hollow cooler, the air inlet through the support two ends gets in the generator, through behind rotating shaft axial ventilation road, rotor radial ventilation hole, the stator radial ventilation hole with heat in the air outlet in the middle of the support brings to the hollow cooler of support top; Air gap, the stator radial ventilation hole of few part cold wind between stator and rotor gets in the hollow cooler, thereby reaches the ventilation and heat purpose.Though this draft type can be taken away the heat of stator and rotor cores; But for the serious and bigger problem of complex structure windage of rotor winding line end heating that is positioned at the rotor homonymy; Can only take away the part heat, thereby all the other heats can't be eliminated in time and cause that very easily electric machine temperature rise increases hidden danger.Thereby present similar generator adopts and strengthens power of motor (rising to 6kw from 4kw) in the hollow cooler the temperature rise of increasing ventilation quantity reduction generator, but meeting additive decrementation grid power, and effect is also not obvious.
Summary of the invention
The utility model causes the bad problem of motor ventilation radiating effect in order to solve existing dual-feed asynchronous wind power generator because of aeration structure is unreasonable, a kind of absolutely empty cooling double-fed asynchronous wind generator is provided.
The utility model is to adopt following technical scheme to realize: absolutely empty cooling double-fed asynchronous wind generator comprises the hollow cooler that inner support has support, rotating shaft, stator, the rotor of the annular gusset of several square-outside and round-insides and is positioned at the support top; Rotating shaft is provided with several axial ventilation roads, and rotor core is provided with several rotor radial ventilation holes that communicates with the axial ventilation road, and stator core is provided with the stator radial ventilation hole identical at interval with the rotor radial ventilation hole; Have several axial ventilation grooves on the inwall of annular gusset; Axial ventilation road internal fixation is useful on the baffle plate of isolating wind path and being positioned at below, rotor right part; The top of support has air inlet that is positioned at the support left end that communicates with hollow cooler and the air outlet that is positioned at the support right-hand member; The left end of rotating shaft is fixed with the acclivitous left centrifugal fan of air-out direction and the right-hand member of rotating shaft is fixed with the relative right centrifugal fan of the air outlet of air-out direction and support, is wound with the no latitude band between left centrifugal fan and rotor left part in the rotating shaft; Rotor winding line end is positioned at the right side of rotor and stator winding line end is positioned at the left side of rotor; Be fixed with on the inwall at support top at left deep bead between left centrifugal fan and the support air inlet and the right deep bead between rotor and right centrifugal fan.
During work; As shown in Figure 1; Cold wind in the hollow cooler divides three the tunnel heat taken away in support left end air inlet gets into generator: the rotor radial ventilation hole that moves downward axial ventilation road through rotating shaft under the barrier effect of one road cold wind at left deep bead, communicates with the axial ventilation road, walk the heat of stator and rotor cores with the identical stator radial ventilation pore area in rotor radial ventilation hole interval; Be wound with no latitude band between left centrifugal fan and rotor left part in the rotating shaft and can prevent that the cold wind in the axial ventilation road from running out of; And the baffle plate that is positioned at the axial ventilation road and is positioned at rotor right part below can prevent that cold wind from directly getting into the rotor right side; The gap of hot blast between annular gusset and stator gets into the rotor right side, and hot blast moves downward behind the part heat of taking away rotor winding line end effect through right centrifugal fan in support right-hand member air outlet entering hollow cooler under the barrier effect of right deep bead; One road cold wind is walked around the heat that left deep bead is taken away stator winding line end under the effect of left centrifugal fan, the right side that the gap of hot blast between annular gusset and stator gets into rotor takes away that the part heat of rotor winding line end is laggard goes in the hollow cooler; The air gap of few a part of cold wind between rotor taken away the laggard right side of going into rotor of the part heat of stator and rotor cores, takes away that the part heat of rotor winding line end is laggard goes in the hollow cooler.
The described generator of the utility model adopts the mixed ventilation structure; Rotor winding line end is separated heat radiation prevent that thereby electric machine temperature rise from eliminating safe hidden trouble; Radiating effect is better, and generator oepration at full load temperature rise is 78K, far below the 80K of domestic and international similar motor; Solved existing dual-feed asynchronous wind power generator and caused the bad problem of motor ventilation radiating effect because of aeration structure is unreasonable, its aeration structure can be adaptable across dual-feed asynchronous wind power generator.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is an A-A cutaway view among Fig. 1.
Among the figure: the 1-annular gusset; The 2-support; The 3-rotating shaft; The 4-hollow cooler; The axial gusset of 5-; 6-axial ventilation road; The 7-rotor core; 8-rotor radial ventilation hole; The 9-stator core; 10-stator radial ventilation hole; 11-axial ventilation groove; The 12-baffle plate; 13-left side centrifugal fan; The right centrifugal fan of 14-; 15-does not have the latitude band; 16-rotor winding line end; 17-stator winding line end; 18-left side deep bead; The right deep bead of 19-.
Embodiment
Absolutely empty cooling double-fed asynchronous wind generator comprises that inner support has support 2, rotating shaft 3, stator, the rotor of the annular gusset 1 of several square-outside and round-insides and the hollow cooler 4 that is positioned at support 2 tops; Rotating shaft 3 is provided with several axial ventilation roads 6, and rotor core 7 is provided with several rotor radial ventilation holes 8 that communicates with axial ventilation road 6, and stator core 9 is provided with the stator radial ventilation hole 10 identical at interval with rotor radial ventilation hole 8; Have several axial ventilation grooves 11 on the inwall of annular gusset 1, axial ventilation road 6 internal fixation are useful on the baffle plate 12 of isolating wind path and being positioned at below, rotor right part; The top of support 2 has air inlet that is positioned at support 2 left ends that communicates with hollow cooler 4 and the air outlet that is positioned at support 2 right-hand members; The left end of rotating shaft 3 is fixed with the acclivitous left centrifugal fan 13 of air-out direction and the right-hand member of rotating shaft 3 is fixed with the relative right centrifugal fan 14 of the air outlet of air-out direction and support 2, is wound with the no latitude band 15 between left centrifugal fan 13 and rotor left part in the rotating shaft 3; Rotor winding line end 16 is positioned at the right side of rotor and stator winding line end 17 is positioned at the left side of rotor; Be fixed with on the inwall at support 2 tops at left deep bead 18 between left centrifugal fan 13 and the support air inlet and the right deep bead 19 between rotor and right centrifugal fan 14.
During practical implementation, have several axial ventilation grooves 11 on the inwall of said annular gusset 1; It is faster that wind speed is flowed, thereby accelerate radiating rate.
Claims (2)
1. absolutely empty cooling double-fed asynchronous wind generator comprises the hollow cooler (4) that inner support has support (2), rotating shaft (3), stator, the rotor of the annular gusset (1) of several square-outside and round-insides and is positioned at support (2) top; Be fixed with several axial gussets (5) on the inwall of annular gusset (1); Rotating shaft (3) is provided with several axial ventilation roads (6); Rotor core (7) is provided with several rotor radial ventilation holes (8) that communicates with axial ventilation road (6), and stator core (9) is provided with the stator radial ventilation hole (10) identical at interval with rotor radial ventilation hole (8); It is characterized in that: axial ventilation road (6) internal fixation is useful on the baffle plate (12) of isolating wind path and being positioned at below, rotor right part; The top of support (2) has air inlet that is positioned at support (2) left end that communicates with hollow cooler (4) and the air outlet that is positioned at support (2) right-hand member; The left end of rotating shaft (3) is fixed with the acclivitous left centrifugal fan of air-out direction (13) and the right-hand member of rotating shaft (3) is fixed with the relative right centrifugal fan (14) of the air outlet of air-out direction and support (2), is wound with the no latitude band (15) that is positioned between left centrifugal fan (13) and the rotor left part in the rotating shaft (3); Rotor winding line end (16) is positioned at the right side of rotor and stator winding line end (17) is positioned at the left side of rotor; Be fixed with the left deep bead (18) that is positioned between left centrifugal fan (13) and the support air inlet on the inwall at support (2) top and at the right part of stator and the right deep bead (19) between the support air outlet.
2. absolutely empty cooling double-fed asynchronous wind generator according to claim 1 is characterized in that: have several axial ventilation grooves (11) on the inwall of said annular gusset (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201362097U CN202495819U (en) | 2012-03-31 | 2012-03-31 | Air-air cooling double-fed asynchronous aerogenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201362097U CN202495819U (en) | 2012-03-31 | 2012-03-31 | Air-air cooling double-fed asynchronous aerogenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495819U true CN202495819U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201362097U Expired - Lifetime CN202495819U (en) | 2012-03-31 | 2012-03-31 | Air-air cooling double-fed asynchronous aerogenerator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611229A (en) * | 2012-03-31 | 2012-07-25 | 永济新时速电机电器有限责任公司 | Air-to-air cooling double-fed asynchronous wind driven generator |
| CN103929006A (en) * | 2014-04-02 | 2014-07-16 | 新兴铸管股份有限公司 | Ventilation device reducing heat of large motor stator |
| CN106100220A (en) * | 2016-08-09 | 2016-11-09 | 中车株洲电机有限公司 | A kind of industrial motor, rotor and rotating shaft thereof |
| CN106787330A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | A kind of rotor for strengthening heat dispersion |
| CN111654126A (en) * | 2019-03-04 | 2020-09-11 | 东芝三菱电机产业系统株式会社 | Rotating electrical machine and method for assembling rotating electrical machine |
| CN111799903A (en) * | 2020-07-09 | 2020-10-20 | 安徽德科电气科技有限公司 | High-efficiency high-voltage generator |
-
2012
- 2012-03-31 CN CN2012201362097U patent/CN202495819U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611229A (en) * | 2012-03-31 | 2012-07-25 | 永济新时速电机电器有限责任公司 | Air-to-air cooling double-fed asynchronous wind driven generator |
| CN103929006A (en) * | 2014-04-02 | 2014-07-16 | 新兴铸管股份有限公司 | Ventilation device reducing heat of large motor stator |
| CN106100220A (en) * | 2016-08-09 | 2016-11-09 | 中车株洲电机有限公司 | A kind of industrial motor, rotor and rotating shaft thereof |
| CN106100220B (en) * | 2016-08-09 | 2018-05-22 | 中车株洲电机有限公司 | A kind of industrial motor, rotor and its shaft |
| CN106787330A (en) * | 2016-12-16 | 2017-05-31 | 卧龙电气集团股份有限公司 | A kind of rotor for strengthening heat dispersion |
| CN111654126A (en) * | 2019-03-04 | 2020-09-11 | 东芝三菱电机产业系统株式会社 | Rotating electrical machine and method for assembling rotating electrical machine |
| CN111799903A (en) * | 2020-07-09 | 2020-10-20 | 安徽德科电气科技有限公司 | High-efficiency high-voltage generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121017 Effective date of abandoning: 20131211 |
|
| RGAV | Abandon patent right to avoid regrant |