CN104242552A - Fan for generator - Google Patents
Fan for generator Download PDFInfo
- Publication number
- CN104242552A CN104242552A CN201410494878.5A CN201410494878A CN104242552A CN 104242552 A CN104242552 A CN 104242552A CN 201410494878 A CN201410494878 A CN 201410494878A CN 104242552 A CN104242552 A CN 104242552A
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- CN
- China
- Prior art keywords
- fan
- generator
- guide ring
- engine
- flywheel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 208000004141 microcephaly Diseases 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 39
- 239000003570 air Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The invention discloses a fan for a generator. The fan is characterized by being installed at the outer end of a flywheel of a rotor of the generator. The fan comprises blades, a guide ring and a guide cover; the roots of the blades are connected with the guide cover; the outer edges of the blades are connected with the guide ring; space between the guide ring and the guide cover forms a flow passage having gradually decreasing flow area. The fan according to the technical scheme has the advantages that air pressure and efficiency of the fan can be improved, the generator can be cooled more efficiently, generator oil can be cooled more efficiently, overheat of the generator is prevented, and output power of the generator is improved.
Description
Technical field
The present invention relates to a kind of fan, be specifically related to a kind of fan for generator.
Background technology
Compared with traditional power frequency synchronous generator, multi-polar permanent-magnet generator has that efficiency is high, volume is little, lightweight advantage.Along with the development of power electronic technology, more and more lower with multi-polar permanent-magnet generator matching used inverter cost, the advantage of multi-polar permanent-magnet generator group is more and more obvious, represents the future thrust of small power generation unit.
Because multi-polar permanent-magnet generator volume is little, power large, energy density is higher, and the service behaviour temperature influence of permanent magnet is larger, and therefore the cooling of multi-polar permanent-magnet generator is very crucial.
Existing external-rotor-type multi-polar permanent-magnet generator cooling structure driven by the engine mainly contains 3 kinds:
1, rear-mounted reverse installation generator: outwardly, namely generator amature flywheel oral area is carried on the back and be oppositely arranged on engine crankshaft rear end towards engine, namely flywheel is between motor stator and engine, the flywheel that generator has oneself independent and cooling fan, cooling fan is arranged between flywheel and engine, cooling order: generator---> crankcase cover of engine---> muffler (optional), this structure take YAMAHA as representative.
2, forward type generator: generator amature flywheel oral area is arranged on engine crankshaft front end towards engine, namely motor stator is between flywheel and engine, generator and engine share a flywheel and cooling fan, cooling fan is arranged on flywheel outside, cooled engine is used for from this fan main stream out, part air-flow enters stator by the gap between generator and engine and cools motor, then by the negative pressuren zone circulation at the return fan center again of the perforate on fan bottom, cooling order: engine local---> generator---> engine main body---> muffler, this structure take HONDA as representative.
3, rear-mounted forward installs generator: generator amature flywheel oral area is arranged on engine crankshaft rear end towards engine, i.e. forward, motor stator is arranged on crankcase cover, the flywheel that generator has oneself independent and cooling fan, this cooling fan is centrifugal fan, be arranged on flywheel outside, generator is between engine and fan.Cooling order: crankcase cover of engine---> generator---> muffler (optional), this structure with domestic each producer for representative.
Compare to the cooling effectiveness of motor, above-mentioned 1st kind of cooling structure is the most rational, because the minimum air of temperature cools at first is motor, and the engine that then just cooling raio motor temperature is high, the muffler that last chilling temperature is the highest.But there is the higher shortcoming of cost in this cooling structure, because motor flywheels be oral area outwardly, carry on the back and oppositely install towards engine, stator cannot be directly installed on crankcase cover, because the coaxial accuracy between stator and engine crankshaft requires higher, whole motor can only be surrounded through the motor case of the aluminium diecasting of processing by increase by, stator is arranged on the bottom of motor case, complicated structure, manufacture and assembly cost higher.
Compare from the cost of generating set, above-mentioned 3rd kind of cooling structure is the most rational, because this cooling structure does not need the aluminium diecasting motor case in the 1st kind of cooling structure, structure is simple, manufacture and assembly cost lower.And this structure can directly use general small gasoline engine as power, because logical machine output is huge, generating set complete machine cost can be made to have more advantage, therefore the program is also better than above-mentioned 2nd kind of cooling structure.But the motor radiating efficiency of this cooling structure is lower, because what the air that temperature is minimum cooled at first is not motor, but first cool crankcase cover of engine, then the motor that just chilling temperature is lower, obvious cooling order is anti-, it is heated by crankcase cover for being used for the air of cooling motor, and motor cooling effectiveness is lower.In addition, the motor cooling air inlet of this scheme, between motor and engine, when being applied to closed mute power generator group, causes difficulty can to the Position Design of motor inlet channel and casing air inlet.
The external-rotor-type multi-polar permanent-magnet generator cooling structure of this patent is conceived to the deficiency of above-mentioned cooling structure just, on the basis adopting general-purpose petrol engine as multi-polar permanent-magnet generator power, the special cooling fan for generator designs, adopt rear-mounted forward that generator is installed, eliminate the motor case of aluminium diecasting, the motor cooling effectiveness basis that maintenance is higher reduces cost.This patent can realize the most reasonably cooling order at low cost: generator---> engine---> muffler (optional), while increase generator cooling effectiveness, improve the cooling effectiveness to engine motor oil, prevent engine overheat.
Obviously, the electric motor fan cooling structure of this patent can be applied to the multi-polar permanent-magnet generator group using other engines as power equally, such as: diesel engine or natural gas engine.
Summary of the invention
The object of the invention is to overcome prior art Problems existing, a kind of fan for generator is provided.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of fan for generator, comprise fan and generator, described fan is arranged on the outer face of the flywheel of the rotor of described generator, described fan comprises blade, guide ring and kuppe, the root of described blade is connected with described kuppe, and the outer rim of described blade is connected with described guide ring.
Further, the space between described guide ring and kuppe defines the flow channels that an area of passage reduces gradually.
Further, described guide ring is large end opening toroidal outwardly, and described kuppe is microcephaly's revolution bodily form outwardly.
Preferably, the flow channels between described guide ring and described kuppe will enter the air-flow guiding of fan, converge to the flywheel air inlet of generator.
Further, described fan is a kind of aerofoil fan
Further, the little end opening of described guide ring and the major part of described kuppe all fit together with the outer face of flywheel.
Beneficial effect of the present invention:
Adopt technical solution of the present invention, blast and the efficiency of fan can be increased, while increase generator cooling effectiveness, improve the cooling effectiveness to engine motor oil, prevent engine from occurring overheated, increase the power output of engine.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the solid of fan of the present invention;
Fig. 2 is the structure schematic diagram of the solid of fan of the present invention;
Fig. 3 is the schematic diagram entering the air-flow of fan of the present invention;
Fig. 4 is the front view of fan of the present invention;
Fig. 5 is the end view of fan of the present invention;
Fig. 6 is the rearview of fan of the present invention;
Fig. 7 is the A-A schematic cross-section of fan of the present invention;
Fig. 8 is the B-B schematic cross-section of fan of the present invention;
Fig. 9 is the structural representation of generator of the present invention;
Figure 10 is the C-C schematic cross-section of generator of the present invention;
Figure 11 is the D-D schematic cross-section of generator of the present invention;
Figure 12 is the rearview of generator of the present invention;
Figure 13 is the Facad structure schematic diagram of the solid of generator of the present invention;
Figure 14 is the structure schematic diagram of the solid of generator of the present invention;
Figure 15 is the exploded perspective view of generator of the present invention;
Figure 16 is the Facad structure schematic diagram of generator driven by the engine of the present invention;
Figure 17 is the E-E schematic cross-section of generator driven by the engine of the present invention;
Figure 18 is the structural representation of rear-mounted generator driven by the engine of the present invention.
Number in the figure illustrates: 1, fan, 2, blade, 3, guide ring, 4, kuppe, 5, air intake, 6, air-out, 7, generator, 8, rotor, 9, stator, 10, stator core, 11, coil, 12, flywheel, 13, magnetic shoe, 14, magnetic shoe retainer, 15, flywheel air inlet, 16, engine, 17, piston, 18, connecting rod, 19, bent axle, 20, crankcase cover, 21, enter the air-flow of fan, 22, outsides cover of electric machinery, 23, outsides cover of electric machinery air inlet, 24, outsides cover of electric machinery air outlet, 25, wind scooper, 26, hand pulling starter, 27, cooling fan of engine, 28, engine flywheel, 29, muffler, 30, crankcase, 31, engine cool air intake, 32, engine cool air-out, 33, generator cooling air-out.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Shown in Fig. 1-Figure 18, a kind of fan for generator, comprise fan 1 and generator 7, described fan 1 is arranged on the outer face of the flywheel 12 of the rotor 8 of described generator 7, described fan 1 comprises blade 2, guide ring 3 and kuppe 4, the root of described blade 2 is connected with described kuppe 4, and the outer rim of described blade 2 is connected with described guide ring 3.
Further, the space between described guide ring 3 and kuppe 4 defines the flow channels that an area of passage reduces gradually.
Further, described guide ring 3 is large end opening toroidal outwardly, and described kuppe 4 is microcephaly's revolution bodily form outwardly.
Preferably, the flow channels between described guide ring 3 and described kuppe 4 will enter the air-flow guiding of fan 1, converge to flywheel 12 air inlet of generator 7.
Further, described fan 1 is a kind of aerofoil fan
Further, the little end opening of described guide ring 3 and the major part of described kuppe 4 all fit together with the outer face of flywheel 12.。
As mentioned above, because this patent fan 1 is provided with guide ring 3 and kuppe 4, thus define a kind of flow-guiding structure, namely this flow-guiding structure constitutes the key of this patent: define the flow channels that an area of passage reduces gradually, the large area air-flow entering fan 1 can be led, converges to the less generator flywheel 12 of air inlet, this flow-guiding structure can increase blast and the efficiency of fan 1.
After adopting above content, flywheel 12 oral area of generator 7 is arranged on bent axle 19 rear end towards engine 16, cooling fan 1 is arranged on the outer face of the flywheel 12 of generator 7, generator 7 is between engine 16 and cooling fan 1, when fan 1 rotates with rotor 8, axial impetus is produced to air, cool ambient air is pressed into flywheel air inlet 15 pairs of generators 7 to cool, air after cooled electric generator 7 flows out from the gap between generator 7 and engine 16, in the process crankcase cover 20 is cooled, this contributes to reducing oil temperature, prevent engine from occurring overheated, improve engine power output in high temperature environments, cooling air afterwards can be the highest to temperature as required muffler 29 cool.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the fan for generator, it is characterized in that, comprise fan (1) and generator (7), described fan (1) is arranged on the outer face of the flywheel (12) of the rotor (8) of described generator (7), described fan (1) comprises blade (2), guide ring (3) and kuppe (4), the root of described blade (2) is connected with described kuppe (4), and the outer rim of described blade (2) is connected with described guide ring (3).
2. the fan for generator according to claim 1, is characterized in that, the space between described guide ring (3) and kuppe (4) defines the flow channels that an area of passage reduces gradually.
3. the fan for generator according to claim 1, is characterized in that, described guide ring (3) is large end opening toroidal outwardly, and described kuppe (4) is microcephaly's revolution bodily form outwardly.
4. the fan for generator according to claim 1, is characterized in that, the flow channels between described guide ring (3) and described kuppe (4) will enter the air-flow guiding of fan (1), converge to flywheel (12) air inlet of generator (7).
5. the fan for generator according to claim 1, is characterized in that, described fan (1) is a kind of aerofoil fan.
6. the fan for generator according to claim 3, is characterized in that, the little end opening of described guide ring (3) and the major part of described kuppe (4) all fit together with the outer face of flywheel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494878.5A CN104242552B (en) | 2014-09-25 | 2014-09-25 | Fan for generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494878.5A CN104242552B (en) | 2014-09-25 | 2014-09-25 | Fan for generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104242552A true CN104242552A (en) | 2014-12-24 |
| CN104242552B CN104242552B (en) | 2017-05-03 |
Family
ID=52230109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410494878.5A Active CN104242552B (en) | 2014-09-25 | 2014-09-25 | Fan for generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104242552B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564516A (en) * | 2013-10-28 | 2015-04-29 | 许如敬 | Suspension type wind turbine |
| CN105275870A (en) * | 2015-11-23 | 2016-01-27 | 盐城市广域机电有限公司 | Cooling fan suitable for small gasoline digital frequency conversion electric generator and stroke lengthening electric generator |
| CN105958683A (en) * | 2016-06-17 | 2016-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor, motor and compressor |
| CN107492977A (en) * | 2017-09-21 | 2017-12-19 | 明程电机技术（深圳）有限公司 | Centrifugal air duct radiating motor |
| CN107659054A (en) * | 2017-10-26 | 2018-02-02 | 江苏东方康弛机电科技有限公司 | A kind of diesel generating set stator cooling device |
| CN107959383A (en) * | 2017-11-29 | 2018-04-24 | 江苏农华智慧农业科技股份有限公司 | A kind of motor drains cooling fan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200514922A (en) * | 2003-10-31 | 2005-05-01 | Delta Electronics Inc | Centrifugal fan with stator blades |
| TW200707881A (en) * | 2006-11-07 | 2007-02-16 | Cimaker Technology Co Ltd | Fan and wind pressure enhancement method thereof |
| CN203214407U (en) * | 2013-03-16 | 2013-09-25 | 青岛天信变频电机有限公司 | Motor cooling fan |
| CN203516181U (en) * | 2013-07-16 | 2014-04-02 | 北京佩特来电器有限公司 | High-flow-capacity double-layer fan and dual-inner-cooling generator with same |
| CN204131319U (en) * | 2014-09-25 | 2015-01-28 | 苏州圆能动力科技有限公司 | A kind of fan for generator |
-
2014
- 2014-09-25 CN CN201410494878.5A patent/CN104242552B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200514922A (en) * | 2003-10-31 | 2005-05-01 | Delta Electronics Inc | Centrifugal fan with stator blades |
| TW200707881A (en) * | 2006-11-07 | 2007-02-16 | Cimaker Technology Co Ltd | Fan and wind pressure enhancement method thereof |
| CN203214407U (en) * | 2013-03-16 | 2013-09-25 | 青岛天信变频电机有限公司 | Motor cooling fan |
| CN203516181U (en) * | 2013-07-16 | 2014-04-02 | 北京佩特来电器有限公司 | High-flow-capacity double-layer fan and dual-inner-cooling generator with same |
| CN204131319U (en) * | 2014-09-25 | 2015-01-28 | 苏州圆能动力科技有限公司 | A kind of fan for generator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564516A (en) * | 2013-10-28 | 2015-04-29 | 许如敬 | Suspension type wind turbine |
| CN104564516B (en) * | 2013-10-28 | 2017-09-15 | 许如敬 | Suspended wind-driven turbine |
| CN105275870A (en) * | 2015-11-23 | 2016-01-27 | 盐城市广域机电有限公司 | Cooling fan suitable for small gasoline digital frequency conversion electric generator and stroke lengthening electric generator |
| CN105958683A (en) * | 2016-06-17 | 2016-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor, motor and compressor |
| CN105958683B (en) * | 2016-06-17 | 2018-12-25 | 珠海格力电器股份有限公司 | rotor, motor and compressor |
| CN107492977A (en) * | 2017-09-21 | 2017-12-19 | 明程电机技术（深圳）有限公司 | Centrifugal air duct radiating motor |
| CN107659054A (en) * | 2017-10-26 | 2018-02-02 | 江苏东方康弛机电科技有限公司 | A kind of diesel generating set stator cooling device |
| CN107959383A (en) * | 2017-11-29 | 2018-04-24 | 江苏农华智慧农业科技股份有限公司 | A kind of motor drains cooling fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104242552B (en) | 2017-05-03 |
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Address after: F13-1306-1, No. 337, Binhe Road, high tech Zone, Suzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Yuanneng Dongli Technology Co.,Ltd. Address before: No.215000, science and Technology Park, Suzhou, wubo District, Jiangsu Province Patentee before: Suzhou Yuanneng Dongli Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20231122 Address after: 215000 Room 202, second floor, building 2, zone 3, No. 20, Datong Road, high tech Zone, Suzhou, Jiangsu Province Patentee after: Suzhou weibaolian Intelligent Technology Co.,Ltd. Address before: F13-1306-1, No. 337, Binhe Road, high tech Zone, Suzhou City, Jiangsu Province, 215000 Patentee before: SUZHOU YUANNENG DONGLI TECHNOLOGY Co.,Ltd. |
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