CN102290922B - Double-fed wind generator - Google Patents
Double-fed wind generator Download PDFInfo
- Publication number
- CN102290922B CN102290922B CN 201110260876 CN201110260876A CN102290922B CN 102290922 B CN102290922 B CN 102290922B CN 201110260876 CN201110260876 CN 201110260876 CN 201110260876 A CN201110260876 A CN 201110260876A CN 102290922 B CN102290922 B CN 102290922B
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- rotor
- support
- stator
- double
- fed wind
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- 238000009423 ventilation Methods 0.000 claims abstract description 36
- 230000002787 reinforcement Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 230000000191 radiation effect Effects 0.000 abstract 1
- 238000005273 aeration Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a generator, in particular to a double-fed wind generator, which solves the problem that ventilation and radiation effects of a motor of the existing double-fed wind generator are not so good due to an unreasonable ventilation structure and comprises a base, a stator, a rotor and a heat exchanger arranged above the base; the bottom of the base is provided with a reinforced rib board; two ends of a rotating shaft are fixed with axial flow fans located below air deflectors; a rotor axial vent hole and a plurality of rotor radial vent slots are formed on a rotor iron core; stator axial vent slots with same spacing with the rotor radial vent slots are formed on a stator iron core; and saw-tooth with the same spacing with the stator axial vent slots are formed on the reinforced rib board. The wind generator is simple in structure and ingenious in design; the saw-tooth structure of the reinforced rib board can be widely applied to all the air-to-water cooled and air-to-air cooled double-fed wind generators or self-ventilating alternate current motors.
Description
Technical field
The present invention relates to a kind of generator, be specially a kind of double-fed wind power generator.
Background technology
Existing double-fed wind power generator is general to be adopted axially or axially-radially compound ventilation structure, being cooling air enters motor internal from the air inlet through support top one end in heat exchanger, after air gap, stator and rotor cores air duct, by the centrifugal fan that is fixed in rotating shaft and is positioned at the support other end, heat is brought to the heat exchanger of support top through the air outlet of the support top other end, thereby reach the ventilation and heat purpose.There is following shortcoming in this structure: the temperature rise of air opening end motor bearings is high than the air inlet end; Simultaneously support adopts the gusset Welding Structure, and the support bottom is provided with the reinforcement gusset, so easy local overheating and then cause that electric machine temperature rise increases hidden danger.
Summary of the invention
The present invention causes the bad problem of motor ventilation radiating effect in order to solve existing double-fed wind power generator because aeration structure is unreasonable, a kind of double-fed wind power generator is provided.
The present invention adopts following technical scheme to realize: a kind of double-fed wind power generator, and the heat exchanger that comprises support, stator, rotor and be positioned at the support top, the support bottom is provided with the reinforcement gusset; The two ends of rotating shaft all are fixed with aerofoil fan; Some the rotor radial ventilation ductss that rotor core is provided with the rotor axial ventilation hole and communicates with the rotor axial ventilation hole, stator core is provided with the stator radial ventilation ditch identical with rotor radial ventilation ducts interval; The air outlet that is provided with the air inlet that is positioned at the support two ends between support and heat exchanger and is positioned at the support middle part; Described reinforcement gusset is provided with the sawtooth identical with stator radial ventilation ditch interval.
Aeration structure of the present invention adopts the radial ventilation mode, cooling air enters in motor from the air inlet of heat exchanger through the support two ends of support top respectively, then respectively after two aerofoil fans through being fixed in the rotating shaft two ends ，Fen tri-tunnels the motor heat is taken away: a road enters by the air outlet in the middle part of support in the heat exchanger above support through rotor axial ventilation hole, the rotor radial ventilation ducts communicated with the rotor axial ventilating opening, the stator radial ventilation ditch identical with rotor radial ventilation ducts interval; One tunnel, is taken away the stator coil end heat through stator core and support gap through stator coil end; A few part enters in heat exchanger by the air outlet at support middle part through air gap, stator radial ventilation ditch, and this heat exchanger can be the air water cooling mode, also can be absolutely empty cold mode.The sawtooth identical with stator radial ventilation ditch interval that the reinforcement gusset is provided with can reduce the motor internal windage, improves the aeration structure of stator core bottom, avoids because of local overheating and then causes that electric machine temperature rise increases hidden danger.
Further, on the inwall of described support, be fixed be positioned at the stator coil two ends and be positioned at aerofoil fan top two kuppes, kuppe can make air intake unobstructed, avoids forming eddy current at winding overhang, improves the motor ventilation heat-sinking capability; The two ends of described rotating shaft also are fixed with top and the tactile gusset support of rotor coil bottom connection, and the gusset support can play a supportive role to rotor winding end, and on its former, the hole corresponding with the rotor axial ventilation hole makes wind path more unobstructed.
The present invention compares with the aeration structure of existing double-fed wind power generator, and the heat exchange amount of motor improves greatly, and temperature rise is low, margin of temperature rise good; The motor of same power, the motor material therefor is few, lightweight, and performance index are better.
The present invention is simple in structure, it is ingenious to design, solved existing double-fed wind power generator and caused the bad problem of motor radiating effect because aeration structure is unreasonable, its broached-tooth design of strengthening gusset can be widely used in the alternating current machine of all air water coolings, absolutely empty cold double-fed wind power generator or self-ventilation.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 strengthens the structural representation of gusset in the support bottom.
Fig. 3 is the B-B profile of Fig. 2.
In figure: the 1-support; The 2-heat exchanger; 3-strengthens gusset; The 4-stator coil; The 5-kuppe; The 6-rotating shaft; The 7-aerofoil fan; The 8-rotor coil; 9-gusset support; 10-rotor axial ventilation hole; 11-rotor radial ventilation ducts; 12-stator radial ventilation ditch; The 13-sawtooth.
Embodiment
A kind of double-fed wind power generator, the heat exchanger 2 that comprises support 1, stator, rotor and be positioned at the support top, the support bottom is provided with strengthens gusset 3; The two ends of rotating shaft 6 all are fixed with aerofoil fan 7, some the rotor radial ventilation ductss 11 that rotor core is provided with rotor axial ventilation hole 10 and communicates with rotor axial ventilation hole 10, stator core is provided with the stator radial ventilation ditch 12 identical with rotor radial ventilation ducts 11 intervals; Be provided with the air inlet that is positioned at support 1 two ends and the air outlet that is positioned at support 1 middle part between support 1 and heat exchanger 2; Described reinforcement gusset 3 is provided with the sawtooth 13 identical with stator radial ventilation ditch 12 intervals.Be fixed with two kuppes 5 that are positioned at stator coil 4 two ends and are positioned at aerofoil fan 7 tops on the inwall of described support 1; The two ends of rotating shaft 6 also are fixed with top and the tactile gusset support 9 of rotor coil 8 bottom connections.
Claims (1)
1. a double-fed wind power generator, the heat exchanger (2) that comprises support (1), stator, rotor and be positioned at support (1) top, the support bottom is provided with strengthens gusset (3); It is characterized in that: the two ends of rotating shaft (6) all are fixed with aerofoil fan (7); Some the rotor radial ventilation ductss (11) that rotor core is provided with rotor axial ventilation hole (10) and communicates with rotor axial ventilation hole (10), stator core is provided with the stator radial ventilation ditch (12) identical with rotor radial ventilation ducts (11) interval; The air outlet that is provided with the air inlet that is positioned at support (1) two ends between support (1) and heat exchanger (2) and is positioned at support (1) middle part; Described reinforcement gusset (3) is provided with the sawtooth (13) identical with stator radial ventilation ditch (12) interval
;be fixed with two kuppes (5) that are positioned at stator coil (4) two ends and are positioned at aerofoil fan (7) top on the inwall of described support (1); The two ends of described rotating shaft (6) also are fixed with top and the tactile gusset support (9) of rotor coil (8) bottom connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110260876 CN102290922B (en) | 2011-09-06 | 2011-09-06 | Double-fed wind generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110260876 CN102290922B (en) | 2011-09-06 | 2011-09-06 | Double-fed wind generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102290922A CN102290922A (en) | 2011-12-21 |
| CN102290922B true CN102290922B (en) | 2013-07-10 |
Family
ID=45337095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110260876 Active CN102290922B (en) | 2011-09-06 | 2011-09-06 | Double-fed wind generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102290922B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611222B (en) * | 2012-02-22 | 2014-10-29 | 北京交通大学 | Motor ventilating system with gear type wind mixing structure |
| CN102624152A (en) * | 2012-04-25 | 2012-08-01 | 中国船舶重工集团公司第七0四研究所 | Low-noise closed-type cooling system of medium-sized power generator |
| CN104124815B (en) * | 2013-04-25 | 2016-06-01 | 上海汉钟精机股份有限公司 | The cooling structure of permanent magnet motor |
| CN103701238A (en) * | 2013-12-12 | 2014-04-02 | 大连天元电机股份有限公司 | Self-circulating heat dissipating device of 5MW doubly-fed air-cooled and water-cooled wind generator |
| CN104135114B (en) * | 2014-08-23 | 2016-08-17 | 永济新时速电机电器有限责任公司 | High pressure air water cooling double-fed wind power generator |
| CN104821669B (en) * | 2015-04-29 | 2017-12-08 | 哈尔滨理工大学 | Stator ventilation circuit formula magneto |
| CN104953766B (en) * | 2015-06-17 | 2018-11-13 | 北京金风科创风电设备有限公司 | Motor radial ventilation cooling structure |
| US10622857B2 (en) | 2015-09-21 | 2020-04-14 | Siemens Aktiengesellschaft | Electrical machine comprising radial cooling slots and wind turbine |
| CN105356668A (en) * | 2015-12-03 | 2016-02-24 | 卧龙电气南阳防爆集团股份有限公司 | Air-cooling and water-cooling alternately-cooled three-phase asynchronous motor |
| CN108471195A (en) * | 2018-04-09 | 2018-08-31 | 西安盾安电气有限公司 | A kind of interior circulation cooling generator |
| CN108683285A (en) * | 2018-06-25 | 2018-10-19 | 浙江运达风电股份有限公司 | A kind of wind-driven generator of novel cooling manner |
| CN111371221A (en) * | 2018-12-25 | 2020-07-03 | 珠海格力电器股份有限公司 | Motor rotors, compressors, refrigerant circulation systems and refrigeration equipment |
| CN109980852A (en) * | 2019-04-23 | 2019-07-05 | 浙江运达风电股份有限公司 | A kind of wind-driven generator aeration radiation system |
| CN111864992B (en) | 2019-04-30 | 2024-10-25 | 金风科技股份有限公司 | Cooling device, motor and wind generating set |
| CN111677632B (en) * | 2020-06-17 | 2022-02-08 | 上海电气风电集团股份有限公司 | Wind driven generator and wind generating set comprising same |
| CN111677631B (en) * | 2020-06-17 | 2022-02-08 | 上海电气风电集团股份有限公司 | Wind driven generator and wind generating set comprising same |
| CN112821673A (en) * | 2021-02-24 | 2021-05-18 | 北京三一智能电机有限公司 | Wind power generator |
| CN114499048A (en) * | 2021-12-29 | 2022-05-13 | 西安中车永电捷力风能有限公司 | A reverse-flow type air-air cooling structure for asynchronous machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050067905A1 (en) * | 2003-09-30 | 2005-03-31 | Mark Maney | Stator cooling method and apparatus |
| CN100444362C (en) * | 2005-10-14 | 2008-12-17 | 富准精密工业(深圳)有限公司 | Radiator |
| CN101034837A (en) * | 2007-04-19 | 2007-09-12 | 湘潭电机股份有限公司 | Security-enhanced three-phase asynchronous motor for mine |
| CN201656725U (en) * | 2010-02-05 | 2010-11-24 | 杨森 | High-voltage permanent magnet synchronous self-starting motor |
| CN202183693U (en) * | 2011-09-06 | 2012-04-04 | 永济新时速电机电器有限责任公司 | Double-fed wind driven generator |
-
2011
- 2011-09-06 CN CN 201110260876 patent/CN102290922B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102290922A (en) | 2011-12-21 |
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Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Department of management, No. 18, motor street, Yongji, Shanxi, Yuncheng Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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