CN104242552B - Fan for generator - Google Patents
Fan for generator Download PDFInfo
- Publication number
- CN104242552B CN104242552B CN201410494878.5A CN201410494878A CN104242552B CN 104242552 B CN104242552 B CN 104242552B CN 201410494878 A CN201410494878 A CN 201410494878A CN 104242552 B CN104242552 B CN 104242552B
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- CN
- China
- Prior art keywords
- fan
- electromotor
- guide ring
- flywheel
- kuppe
- Prior art date
- 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.)
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- 208000004141 microcephaly Diseases 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 37
- 239000003570 air Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 5
- 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
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000005405 multipole Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation 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
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
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, and in particular to a kind of fan for electromotor.
Background technology
Compared with traditional power frequency synchronous generator, multi-polar permanent-magnet generator has efficiency high, small volume, lightweight excellent
Point.With the development of Power Electronic Technique, more and more lower with the matching used inverter cost of multi-polar permanent-magnet generator, multipole is forever
The advantage of magnetic generator group is more and more obvious, represents the future thrust of small power generation unit.
As multi-polar permanent-magnet generator small volume, power are big, energy density is higher, and the service behaviour of permanent magnet is by temperature
Degree is affected than larger, 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 has 3 kinds：
1st, rear-mounted reverse installation electromotor：Generator amature flywheel oral area is reversibly mounted on facing away from electromotor outwardly, i.e.
Engine crankshaft rear end, i.e. flywheel are between motor stator and electromotor, and electromotor has oneself single flywheel and cooling wind
Fan, cooling fan are arranged between flywheel and electromotor, cooling order：Electromotor --->Crankcase cover of engine --->Noise reduction
Device（It is optional）, this structure is with YAMAHA as representative.
2nd, forward type electromotor：Generator amature flywheel oral area is arranged on engine crankshaft front end towards electromotor, i.e. electricity
Machine stator is between flywheel and electromotor, and electromotor and electromotor share a flywheel and cooling fan, and cooling fan is installed
Outside flywheel, it is used for cooling down electromotor from fan main stream out, a part of air-flow passes through electromotor and electromotor
Between gap motor is cooled down into stator, the negative pressure of fan center is then returned again to by the perforate on fan bottom
Area is circulated, cooling order：Electromotor local --->Electromotor --->Engine main body --->Deafener, this structure is with HONDA
To represent.
3rd, rear-mounted positive installation electromotor：Generator amature flywheel oral area is towards electromotor, i.e. positive being arranged on is started
Machine crankshaft rear end, motor stator are arranged on crankcase cover, and electromotor has oneself single flywheel and cooling fan, the cooling wind
Fan is centrifugal fan, and outside flywheel, electromotor is located between electromotor and fan.Cooling order：Engine crankcase
Lid --->Electromotor --->Deafener（It is optional）, this structure is with domestic each producer as representative.
Compare from the cooling effectiveness to motor, above-mentioned 1st kind of cooling structure is most rational, because temperature is minimum
What air was cooled down at first is motor, then just cools down the electromotor higher than motor temperature, last chilling temperature highest deafener.
But the cooling structure have the shortcomings that it is relatively costly because motor flywheels be oral area outwardly, reversely install facing away from electromotor,
Stator cannot be directly installed on crankcase cover, due to the coaxial accuracy between stator and engine crankshaft require it is higher, only
The motor case that an aluminium diecasting through processing can be passed through to increase surrounds whole motor, and stator is arranged on the bottom of motor case
Portion, structure are more complicated, and manufacture and assembly cost are higher.
Compare from the cost of generating set, above-mentioned 3rd kind of cooling structure is most rational, because the cooling structure is not
Need the aluminium diecasting motor case in the 1st kind of cooling structure, simple structure, manufacture and assembly cost it is relatively low.And this knot
Structure can directly use general small gasoline engine as power, as logical machine yield is huge, have more can the whole machine cost of generating set
It is advantageous, therefore the program is also superior to above-mentioned 2nd kind of cooling structure.But the motor radiating of this cooling structure is less efficient,
Because what the minimum air of temperature was cooled down at first is not motor, but first cools crankcase cover of engine, temperature is then just cooled down
The relatively low motor of degree, it is clear that cooling order is anti-, and the air for cooling down motor is heated by crankcase cover, motor
Cooling effectiveness is relatively low.Additionally, the motor cooling air inlet of this scheme is located between motor and electromotor, it is closed when being applied to
During mute power generator group, difficulty can be caused 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 exactly conceived to the deficiency of above-mentioned cooling structure,
Using general-purpose petrol engine as multi-polar permanent-magnet generator power on the basis of, be that electromotor devises special cooling wind
Fan, using rear-mounted positive installation electromotor, eliminates the motor case of aluminium diecasting, is keeping higher motor cooling effectiveness
On the basis of reduce cost.This patent can be achieved at low cost most rational cooling order：Electromotor --->Electromotor ---
>Deafener（It is optional）, while electromotor cooling effectiveness is increased, the cooling effectiveness to engine motor oil is improve, prevents from sending out
Motivation is overheated.
Obviously, the electric motor fan cooling structure of this patent can be applied equally to the multipole using other electromotors as power
Permanent magnet generator unit, such as：Diesel engine or natural gas engine.
The content of the invention
It is an object of the invention to overcome the problem that prior art is present, there is provided a kind of fan for electromotor.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, the present invention is achieved through the following technical solutions：
A kind of fan for electromotor, including fan and electromotor, the fan are arranged on the rotor of the electromotor
Flywheel outer face on, the fan includes blade, guide ring and kuppe, and the root of the blade is connected with the kuppe
Connect, the outer rim of the blade is connected with the guide ring.
Further, the space between the guide ring and kuppe defines the excessively stream that an area of passage is gradually reduced
Passage.
Further, the guide ring is big end opening toroidal outwardly, and the kuppe is microcephaly's returning outwardly
Swivel shape.
Preferably, the air-flow into fan is oriented to, is converged by the flow channels between the guide ring and the kuppe
To the flywheel air inlet of electromotor.
Further, the fan is a kind of aerofoil fan
Further, the major part of the little end opening and the kuppe of the guide ring is all fitted in the outer face of flywheel
Together.
Beneficial effects of the present invention:
Using technical solution of the present invention, by increasing capacitance it is possible to increase the blast and efficiency of fan, increasing the same of electromotor cooling effectiveness
When, the cooling effectiveness to engine motor oil is improve, is prevented electromotor from occurring overheated, is increased the output of electromotor.
Description of the drawings
Fig. 1 is the positive structure schematic of the solid of the fan of the present invention；
Fig. 2 is the structure schematic diagram of the solid of the fan of the present invention；
Fig. 3 is the schematic diagram of the air-flow of the entrance fan of the present invention；
Fig. 4 is the front view of the fan of the present invention；
Fig. 5 is the side view of the fan of the present invention；
Fig. 6 is the rearview of the fan of the present invention；
Fig. 7 is the Section A-A schematic diagram of the fan of the present invention；
Fig. 8 is the section B-B schematic diagram of the fan of the present invention；
Fig. 9 is the structural representation of the electromotor of the present invention；
Figure 10 is the C-C schematic cross-sections of the electromotor of the present invention；
Figure 11 is the D-D schematic cross-sections of the electromotor of the present invention；
Figure 12 is the rearview of the electromotor of the present invention；
Figure 13 is the positive structure schematic of the solid of the electromotor of the present invention；
Figure 14 is the structure schematic diagram of the solid of the electromotor of the present invention；
Figure 15 is the exploded perspective view of the electromotor of the present invention；
Figure 16 is the positive structure schematic of the electromotor driven by the engine of the present invention；
Figure 17 is the E-E schematic cross-sections of the electromotor driven by the engine of the present invention；
Figure 18 is the structural representation of the driven by the engine rear-mounted electromotor of the present invention.
Label declaration in figure：1st, fan, 2, blade, 3, guide ring, 4, kuppe, 5, air intake, 6, air-out, 7, electromotor,
8th, rotor, 9, stator, 10, stator core, 11, coil, 12, flywheel, 13, magnetic shoe, 14, magnetic shoe retainer, 15, flywheel air intake
Mouthful, 16, electromotor, 17, piston, 18, connecting rod, 19, bent axle, 20, crankcase cover, 21, into the air-flow of fan, 22, outside motor
Cover, 23, outsides cover of electric machinery air inlet, 24, outsides cover of electric machinery air outlet, 25, wind scooper, 26, hand pulling starter, 27, engine cool
Fan, 28, engine flywheel, 29, deafener, 30, crankcase, 31, engine cool air intake, 32, engine cool air-out,
33rd, electromotor cooling air-out.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Shown in reference picture 1- Figure 18, a kind of fan for electromotor, including fan 1 and electromotor 7, the fan 1 are pacified
On the outer face of the flywheel 12 for being mounted in the rotor 8 of the electromotor 7, the fan 1 includes blade 2, guide ring 3 and kuppe 4,
The root of the blade 2 is connected with the kuppe 4, and the outer rim of the blade 2 is connected with the guide ring 3.
Further, the space between the guide ring 3 and kuppe 4 defines the mistake that an area of passage is gradually reduced
Circulation road.
Further, the guide ring 3 is big end opening toroidal outwardly, the kuppe 4 be microcephaly outwardly
The revolution bodily form.
Preferably, the air-flow into fan 1 is oriented to, is converged by the flow channels between the guide ring 3 and the kuppe 4
Gather 12 air inlet of flywheel of electromotor 7.
Further, the fan 1 is a kind of aerofoil fan
Further, the major part of the little end opening and the kuppe 4 of the guide ring 3 is all pasted with the outer face of flywheel 12
It is combined..
As noted previously, as this patent fan 1 is provided with guide ring 3 and kuppe 4, so as to define a kind of water conservancy diversion knot
Structure, the flow-guiding structure constitute the key of this patent：The flow channels that an area of passage is gradually reduced are defined, can be by
Large area air-flow into fan 1 is oriented to, converges to the less electromotor flywheel 12 of air inlet, and the flow-guiding structure can increase wind
The blast and efficiency of fan 1.
After above content, 12 oral area of flywheel of electromotor 7 is arranged on 19 rear end of bent axle towards electromotor 16, cools down wind
Fan 1 be arranged on electromotor 7 flywheel 12 outer face, electromotor 7 be between electromotor 16 and cooling fan 1, fan 1 with turn
When son 8 rotates, axial impetus is produced to air, cool ambient air press-in flywheel air inlet 15 is carried out to electromotor 7 cold
But, flow out in gap of the air after cooled electric generator 7 between electromotor 7 and electromotor 16, in the process to bent axle
Case lid 20 is cooled down, and this contributes to reducing oil temperature, is prevented electromotor from occurring overheated, is improved electromotor in high temperature environments
Output, cooling wind afterwards can be cooled down to temperature highest acoustic filter 29 as needed.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of fan for electromotor, it is characterised in that including fan（1）And electromotor（7）, the fan（1）Install
In the electromotor（7）Rotor（8）Flywheel（12）Outer face on, the fan（1）Including blade（2）, guide ring（3）
And kuppe（4）, the blade（2）Root and the kuppe（4）Connection, the blade（2）Outer rim and the water conservancy diversion
Ring（3）Connection, the guide ring（3）With kuppe（4）Between space define the excessively stream that an area of passage is gradually reduced
Passage.
2. the fan for electromotor according to claim 1, it is characterised in that the guide ring（3）For big end opening
Toroidal outwardly, the kuppe（4）For microcephaly's revolution bodily form outwardly.
3. the fan for electromotor according to claim 1, it is characterised in that the guide ring（3）With the water conservancy diversion
Cover（4）Between flow channels will be into fan（1）Air-flow be oriented to, converge to electromotor（7）Flywheel（12）Air inlet.
4. the fan for electromotor according to claim 1, it is characterised in that the fan（1）It is a kind of axle stream wind
Fan.
5. the fan for electromotor according to claim 2, it is characterised in that the guide ring（3）Little end opening
With the kuppe（4）Major part all with flywheel（12）Outer face fit together.
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 CN104242552A (en) | 2014-12-24 |
| CN104242552B true 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) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564516B (en) * | 2013-10-28 | 2017-09-15 | 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 |
| 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 |
| CN109787386A (en) * | 2019-03-05 | 2019-05-21 | 石河子大学 | A kind of wind and liquid double cooling formula permanent-magnetic wind driven generator |
| CN114142679B (en) * | 2021-11-24 | 2025-04-25 | 卧龙电气驱动集团股份有限公司 | A heat dissipation structure of an outer rotor motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI235205B (en) * | 2003-10-31 | 2005-07-01 | 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
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| Publication number | Publication date |
|---|---|
| CN104242552A (en) | 2014-12-24 |
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| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
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 | ||
| 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. |