CN102427284A - Wind power generator - Google Patents
Wind power generator Download PDFInfo
- Publication number
- CN102427284A CN102427284A CN2011103099871A CN201110309987A CN102427284A CN 102427284 A CN102427284 A CN 102427284A CN 2011103099871 A CN2011103099871 A CN 2011103099871A CN 201110309987 A CN201110309987 A CN 201110309987A CN 102427284 A CN102427284 A CN 102427284A
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- motor
- driven generator
- wind
- kuppe
- main shaft
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- 239000011229 interlayer Substances 0.000 claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims description 24
- 241000239290 Araneae Species 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 36
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 239000002826 coolant Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides a wind driven generator which comprises a motor, a cabin cover arranged on the rear side of the motor, a flow guide cover arranged on the front side of the motor, an external heat dissipation shell arranged on the outer side of the flow guide cover through a supporting structure and a circulating fan, wherein the motor comprises a motor main shaft, a rotor arranged on the main shaft and a stator arranged on the outer side of the rotor, the motor is provided with an axial ventilation channel for communicating the front space and the rear space of the motor, a flow guide cover interlayer is formed between the external heat dissipation shell and the flow guide cover, and the flow guide cover interlayer is communicated with an air gap between the stator and the rotor and is communicated with the axial ventilation channel. The wind driven generator utilizes the interlayer structure and the motor main shaft as the circulation channel of the cooling medium and is also the heat dissipation channel exchanged with the external natural air cooling, thereby achieving the purposes of utilizing the external natural air cooling, having compact and reasonable layout and reducing the cost.
Description
Technical field
The present invention relates to a kind of wind-driven generator, relate in particular to a kind of wind-driven generator with ventilation cooling structure.
Background technology
Generator can produce loss in running, this part loss will be presented as caloric value, if can not in time heat be distributed, motor will be overheated, and temperature rise is increased, and causes Insulation Problems.Therefore, in time and effectively the heat in the motor being distributed is the prerequisite that motor runs well.
Present generator mainly adopts air cooling, water-cooling pattern or sky-water to mix the type of cooling and cools off.
Water-cooled mainly leans against motor internal and buries water pipe underground or waterway channel is set on support; Water comes cooling motor unshakable in one's determination; Waterway pipe flows cooling water in the effect lower edge of water pump, and carries out getting into motor again after the heat exchange through air/water cooler, realizes a cool cycles.Because water-cooling system need be buried water pipe underground in the generator inner core, it is crucial that water pipe head is handled, and water-cooling system is very high to the requirement of production technology property, produces leakage accident probably if deal with improperly, destroys the insulation of generator.
Air cooling mainly utilizes air to be coolant; Axial ventilation road or radial ducts that import and export passage through pipeline or motor gets into motor internal are accomplished cooling back hot blast and will be got into hollow cooler; Carry out turning back to motor internal after the heat exchange, accomplish a cool cycles.The closed type of cooling that has adopted in the prior art has the pylon type of cooling and the engine room cover type of cooling.
Fig. 1 shows the pylon type of cooling.The pylon type of cooling can utilize pylon as heat-sink unit, makes air dispel the heat fully through the cooling channel that is arranged in the pylon.But; The cooling channel of the pylon type of cooling is long, and the pylon wall thickness is unfavorable for heat radiation thereby causes the area of dissipation needs very big simultaneously, and this just makes and from the cat head to the pylon, is heat dissipation channel; Cause bigger windage; Therefore the power consumption of fan motor is very big, and very high cost is made the pylon interlayer simultaneously, makes cost increase.
Fig. 2 shows the engine room cover type of cooling.For the engine room cover type of cooling, the main heat conductivility of engine room cover that leans on of cooling is accomplished, and the heat transferred between engine room cover and the generator is the radiation and the heat conduction of leaning on air, and distribute heat is few like this, and radiating efficiency is low.Engine room cover adopts metal material fully simultaneously, and for proof strength, thickness needs very thick, and cost is high like this, and heat conductivility is also poor.
If adopt the open type type of cooling, then do not need hollow cooler, directly extraneous wind is incorporated into generator inside, cold wind is got rid of outside the cabin.This advantage is that coolant temperature is low, does not need extra hollow cooler, and cost is low, simple in structure, but extraneous cold air directly entering can bring dust storm, dust, water, salt fog etc. into, unfavorable to electrical machine insulation.
In view of the foregoing, need the rational wind-driven generator of a kind of design of Cooling System, make the electric machine temperature rise of this wind-driven generator to reduce effectively.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of wind-driven generator with ventilation cooling structure.Said wind-driven generator comprises motor, be installed in the engine room cover of motor rear side, be installed in the kuppe of motor front side, be arranged on the outside heat radiation shell and the circulating fan in the kuppe outside through supporting construction; The stator that said motor comprises electric machine main shaft, is installed in the rotor on the main shaft and is arranged on the rotor outside; Said motor is provided with the front space of connection motor and the axial ventilation road of back space; Form the kuppe interlayer between said outside heat radiation shell and the kuppe; Said kuppe interlayer is communicated with air gap between stator and the rotor, and is communicated with the axial ventilation road.
Said outside heat radiation shell can be processed by the material of thermal conductivity＞80W/mk.
Said stator outer surface can highlight from the outer surface of engine room cover.
Said circulating fan can be arranged at least one place in rear-end of spindle, the main shaft, in the kuppe front end.
Can be provided with radiation tooth or fold on the surface of said outside heat radiation shell.
Said main shaft can be hollow structure, and said hollow structure forms said axial ventilation road.
Said axial ventilation road can be the pipeline of drawing and pass through stator support and rotor field spider from kuppe.
Said outside heat radiation shell can be processed by the metal of thermal conductivity＞80W/mk.
The quantity of said circulating fan can be one or more connection in series-parallel.
Said circulating fan can be aerofoil fan or centrifugal fan.
According to above-mentioned wind-driven generator, utilize the natural air cooled type of cooling, in impeller place kuppe, sandwich is set; The main shaft of motor is a hollow rotating shaft, utilizes sandwich and the electric machine main shaft circulation passage as coolant, also is and the natural air cooled heat dissipation channel that exchanges in the external world simultaneously; Thereby reach utilized extraneous natural air cooled; Compact in design is reasonable, the purpose that reduces cost, and the present invention can adopt than hanging down on the bigger motor of diameter at direct driving motor or rotating speed.
Description of drawings
Through the description of exemplary embodiment being carried out below in conjunction with accompanying drawing, above-mentioned purpose of the present invention and characteristics will become and know and easy to understand, wherein:
Fig. 1 shows the wind-driven generator of the employing pylon type of cooling of the prior art;
Fig. 2 shows the wind-driven generator of the employing engine room cover type of cooling of the prior art;
Fig. 3 shows the wind-driven generator with ventilation cooling structure according to the embodiment of the invention.
Wherein, the implication of label is following:
1-kuppe interlayer; The kuppe that the 2-cabin is anterior; The 3-motor gas-gap; The 4-circulating fan; The 5-engine room cover; The outside heat radiation of 6-shell; The 7-impeller; The 8-pylon; The 9-generator amature; The 10-generator unit stator; The 11-generator shaft; 12-generator unit stator outer surface; The 13-engine room inside.
Embodiment
Below, specify embodiments of the invention with reference to accompanying drawing.
Fig. 3 shows the cooling structure that ventilates according to an exemplary embodiment of the present invention.
In the embodiment shown in fig. 3, be that example is described with the direct-drive aerogenerator.As shown in Figure 3, according to an exemplary embodiment of the present invention wind-driven generator comprise motor, be arranged on the motor rear side engine room cover 5, be arranged on the motor front side kuppe 2, be arranged on kuppe 2 outsides outside heat radiation shell 6, be arranged on the circulating fan 4 of engine room inside.Form kuppe interlayer 1 between said outside heat radiation shell 6 and the kuppe 2.Said motor comprises electric machine main shaft 11, be installed in rotor 9 on the main shaft 11, be arranged on the stator 10 in rotor 9 outsides; Said motor is provided with the inner space that is communicated with engine room cover 5 and the axial ventilation road of kuppe interlayer 1, said kuppe interlayer 1 simultaneously also with stator and rotor between air gap 3 be communicated with.
According to the wind-driven generator of the embodiment of the invention, said main shaft 11 is a hollow shaft, thereby forms the main shaft air duct, and said main shaft air duct fluid is communicated with the front space and the back space of motor.
In addition, the outer surface 12 of stator 10 is projected into the outside of engine room cover 5, and like this, the area of dissipation of stator 9 increases, and makes heat-sinking capability greatly improve.
Circulating fan 4 can be aerofoil fan or centrifugal fan, and quantity can one or more connection in series-parallel.In the present embodiment, circulating fan 4 opposite side relative that be arranged on main shaft 11 with kuppe 2.Obviously, circulating fan 4 also can be arranged in the main shaft 11, perhaps is arranged on the front end of kuppe 2.
When circulating fan 4 runnings, the cold air in the engine room cover 5 gets into air gap 3 inside of motor under the swabbing action of circulating fan 4, and after the rotor heating amount and the stator caloric value of a part are taken away, hot blast will enter in the kuppe interlayer 2.Because kuppe 2 outside heat radiation shells 6 can be good (for example by heat conductivility; The metal of thermal conductivity＞80W/mk) is processed; Thereby through the heat exchange between outside heat radiation shell 6 completion hot blasts and the extraneous natural cold wind; The cold wind of accomplishing heat exchange again from the air duct of main shaft 11 through and get back in the engine room inside 13 through behind the circulating fan 4, the shell through engine room cover 5 carries out heat exchange with the outside and after accomplishing further heat radiation, becomes cold wind again, entering circulates next time under the effect of circulating fan 4 then.
Because the main heating amount of motor concentrates on stator 10 and the rotor 9, therefore, the present invention as heat dissipation channel, can take away most of heat with the stator surface 12 of the air gap 3 of motor and motor.
For realizing sandwich, be provided with support structure in the centre of kuppe interlayer 1, the anterior kuppe 2 in cabin is linked to each other with outside heat radiation shell 6.
In design, outside heat radiation shell 6 also can adopt heat dispersion, and good (for example, the nonmetallic materials of thermal conductivity＞80W/mk) substitute, and outside surface of dispelling the heat shell 6 can be smooth also can have radiation tooth or fold with the increase area of dissipation.
In addition, as the main shaft air duct of generator coolant path also can by other from the cabin kuppe draw and pipeline through stator support and rotor field spider replaces.
Technical scheme of the present invention has following advantage at least:
1, the heat dissipation channel connection and reasonable arrangement is compact; Motor gas-gap directly facing to the interlayer inlet of cabin kuppe, has been avoided around motor, pipeline being set, and makes whole cabin more compact; Whole outlet simultaneously is distributed in one week of motor; And be not only single outlet, it is more reasonable that air quantity is distributed, and motor temperature rise everywhere is even;
2, the return air wind path is the main shaft of generator, and main shaft is designed to hollow form, in the effect of performance main shaft, also is the return air wind path, has saved the pipeline that is used as the return air wind path, makes compact conformation, global design more simple;
3, utilize natural air cooled, through the thermal conductive resin of outside heat radiation shell, can be effectively with the hot-air cooling of motor internal.Utilize natural air cooled cooling stator outer surface simultaneously, through the effective heat that produces of cooling motor of two kinds of approach;
4, cooling system has automatic regulatory function, and when extraneous wind is little, the electric power generation amount is little, and caloric value is also low, and natural wind cooling amount is also low, when the motor feels hot amount is high, also is extraneous wind speed big the time, and at this moment heat dissipation capacity is also high.
5, reasonably wind path is arranged outer natural air cooled in the opposite direction of the cold air that makes in the kuppe interlayer and kuppe interlayer, and the shell both sides formation adverse current of externally dispelling the heat has good heat-radiation effect;
6, save heat dissipation channel, radiator, windage is little simultaneously, and fan power is low, makes whole cooling system have the advantages that cost is low, efficient is high, maintenance is few;
7, coolant all in the engine room inside circulation, can not introduced extraneous natural wind, can avoid the invasion and attack of dust, water and salt fog like this, and engine room inside equipment and generator are had good protective effect.
Though illustrated and described the present invention, it should be appreciated by those skilled in the art, under the situation that does not break away from spirit of the present invention and principle, can make modification to exemplary embodiment.
Claims (10)
1. wind-driven generator; It is characterized in that; Said wind-driven generator comprises motor, be installed in the engine room cover of motor rear side, be installed in the kuppe of motor front side, be arranged on the outside heat radiation shell and the circulating fan in the kuppe outside through supporting construction; The stator that said motor comprises main shaft, is installed in the rotor on the main shaft and is arranged on the rotor outside, said motor are provided with the front space of connection motor and the axial ventilation road of back space, form the kuppe interlayer between said outside heat radiation shell and the kuppe; Said kuppe interlayer is communicated with air gap between stator and the rotor, and is communicated with the axial ventilation road.
2. wind-driven generator according to claim 1 is characterized in that, said outside heat radiation shell is processed by the material of thermal conductivity＞80W/mk.
3. wind-driven generator according to claim 1 is characterized in that said stator outer surface highlights from the outer surface of engine room cover.
4. wind-driven generator according to claim 1 is characterized in that, said circulating fan is arranged at least one place in rear-end of spindle, the main shaft, in the kuppe front end.
5. wind-driven generator according to claim 1 is characterized in that, the surface of said outside heat radiation shell is provided with radiation tooth or fold.
6. according to each described wind-driven generator in the claim 1 to 5, it is characterized in that said main shaft is a hollow structure, said hollow structure forms said axial ventilation road.
7. according to each described wind-driven generator in the claim 1 to 5, it is characterized in that said axial ventilation road is for drawing and pass through the pipeline of stator support and rotor field spider from kuppe.
8. according to each described wind-driven generator in the claim 1 to 5, it is characterized in that said outside heat radiation shell is processed by the metal of thermal conductivity＞80W/mk.
9. according to each described wind-driven generator in the claim 1 to 5, it is characterized in that the quantity of said circulating fan is one or more connection in series-parallel.
10. according to each described wind-driven generator in the claim 1 to 5, it is characterized in that said circulating fan is aerofoil fan or centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309987.1A CN102427284B (en) | 2011-10-13 | 2011-10-13 | Wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309987.1A CN102427284B (en) | 2011-10-13 | 2011-10-13 | Wind-driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102427284A true CN102427284A (en) | 2012-04-25 |
| CN102427284B CN102427284B (en) | 2014-06-18 |
Family
ID=45961234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110309987.1A Active CN102427284B (en) | 2011-10-13 | 2011-10-13 | Wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102427284B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528423A (en) * | 2017-10-17 | 2017-12-29 | 广州市香港科大霍英东研究院 | A kind of small-size wind power-generating closed permanent magnet generator |
| CN110449232A (en) * | 2019-01-01 | 2019-11-15 | 仲从宝 | On set head disjunctor barrier baffle pump drainage wind-cooling heat dissipating meat grinder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107620A (en) * | 1993-11-02 | 1995-08-30 | 电气联合股份有限公司 | Device for cooling an electric motor for a turbo-fan unit |
| JP2000333410A (en) * | 1999-05-19 | 2000-11-30 | Mitsubishi Electric Corp | Rotating electric machine |
| CN1599839A (en) * | 2001-05-18 | 2005-03-23 | 阿洛伊斯·沃本 | Cooling device for a wind turbine generator |
-
2011
- 2011-10-13 CN CN201110309987.1A patent/CN102427284B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107620A (en) * | 1993-11-02 | 1995-08-30 | 电气联合股份有限公司 | Device for cooling an electric motor for a turbo-fan unit |
| JP2000333410A (en) * | 1999-05-19 | 2000-11-30 | Mitsubishi Electric Corp | Rotating electric machine |
| CN1599839A (en) * | 2001-05-18 | 2005-03-23 | 阿洛伊斯·沃本 | Cooling device for a wind turbine generator |
| CN1321267C (en) * | 2001-05-18 | 2007-06-13 | 阿洛伊斯·沃本 | Cooling device for a wind turbine generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528423A (en) * | 2017-10-17 | 2017-12-29 | 广州市香港科大霍英东研究院 | A kind of small-size wind power-generating closed permanent magnet generator |
| CN107528423B (en) * | 2017-10-17 | 2024-04-09 | 广州市香港科大霍英东研究院 | Closed permanent magnet generator for small wind power generation |
| CN110449232A (en) * | 2019-01-01 | 2019-11-15 | 仲从宝 | On set head disjunctor barrier baffle pump drainage wind-cooling heat dissipating meat grinder |
| CN110449231A (en) * | 2019-01-01 | 2019-11-15 | 仲从宝 | On set head fan blade end round bottom arc pump drainage wind-cooling heat dissipating meat grinder |
| CN110449233A (en) * | 2019-01-01 | 2019-11-15 | 仲从宝 | On set head air holes barrier baffle pump drainage wind-cooling heat dissipating meat grinder |
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| Publication number | Publication date |
|---|---|
| CN102427284B (en) | 2014-06-18 |
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