CN204299945U - For the fan structure of generator - Google Patents
For the fan structure of generator Download PDFInfo
- Publication number
- CN204299945U CN204299945U CN201420553258.XU CN201420553258U CN204299945U CN 204299945 U CN204299945 U CN 204299945U CN 201420553258 U CN201420553258 U CN 201420553258U CN 204299945 U CN204299945 U CN 204299945U
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- Prior art keywords
- fan
- generator
- magnetic shoe
- utility
- motor
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- Motor Or Generator Cooling System (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a kind of fan structure for generator, comprise fan and generator, described fan is arranged on the oral area of described generator flywheel, described fan comprises blade, fastening foot and ring cowling, described blade is positioned at the exterior edge face of described ring cowling, and described fastening foot is positioned at the interior edge face of described ring cowling; Described fan can also directly be formed by the magnetic shoe retainer bottom flywheel, and the fastening foot on described magnetic shoe retainer is stretched out from the exterior edge face of magnetic shoe thus formed the blade of fan.Center region between motor and generator is produced negative pressure by cooling fan of the present utility model, cool ambient air can directly be inhaled into motor and cool, and then motor local is cooled, to reduce engine oil temperature, prevent engine overheat, the generator set cooling order of realization the best of the utility model energy low cost, improves generator cooling effectiveness.
Description
Technical field
The utility model relates to a kind of fan structure, is specifically related to a kind of fan structure for generator.
Background technique
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 Technique, 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 motor, namely flywheel is between motor stator and motor, the flywheel that generator has oneself independent and cooling fan, cooling fan is arranged between flywheel and motor, cooling order: generator---> crankcase cover of engine---> baffler (optional), this structure take YAMAHA as representative.
2, front-located mode generator: generator amature flywheel oral area is arranged on engine crankshaft front end towards motor, namely motor stator is between flywheel and motor, generator and motor 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 motor by the gap between generator and motor and cools, then by the negative pressuren zone circulation at the return fan center again of the perforate on fan bottom, cooling order: motor local---> generator---> engine main body---> baffler, 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 motor, 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 cutter, be arranged on flywheel outside, generator is between motor and fan.Cooling order: crankcase cover of engine---> generator---> baffler (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 motor that then just cooling raio motor temperature is high, the baffler that last chilling temperature is the highest.But there is the higher shortcoming of cost in this cooling structure, outwardly, namely carry on the back oppositely install because motor flywheels is oral area towards motor, 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 generator 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, generator 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 motor, when being applied to closed mute power generator group, causes difficulty can to the Position Design of motor gas-entered passageway and casing suction port.
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, at employing general-purpose petrol engine as on the basis of generator power, the special cooling fan for generator designs, this fan can be made of one with the magnetic shoe retainer of motor flywheels oral area, also can with flywheel bottom magnetic shoe retainer be made of one, being made of one structure with magnetic shoe retainer can simplified structure, reduces and manufactures and assembly cost.When this patent is applied to rear-mounted forward installation generator, the motor case of aluminium diecasting can be saved, the motor cooling effectiveness basis that maintenance is higher reduces cost.This patent can realize the most reasonably cooling order at low cost: generator---> motor---> baffler (optional), while increase generator cooling effectiveness, improve the cooling effectiveness to engine motor oil, prevent engine overheat.
Obviously, the motor ventilating fan cooling structure of this patent can be applied to the external rotor type multi-polar permanent-magnet generator group using other motors as power equally, such as: diesel engine or natural gas engine.
In addition, although the main application of this patent cooling fan is mounted in the external rotor type multi-polar permanent-magnet generator of engine rear end, but obviously also can be applied in (see patent Figure 20) on front-located mode generator: keep original cooling fan of engine constant, only need the cooling fan installing this patent between rotor flywheel and motor.Center region between motor and generator is produced negative pressure by the cooling fan of this patent, the cool ambient air entering cooling fan of engine can directly be inhaled into motor and cool, and can realize rational cooling order: generator---> motor---> baffler (optional).
Model utility content
The purpose of this utility model is to overcome prior art Problems existing, provides a kind of fan structure for generator.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
For the fan structure of generator, comprise fan and generator, described fan is arranged on the oral area of described generator flywheel.
Described fan comprises blade, fastening foot and ring cowling, and described blade is positioned at the exterior edge face of described ring cowling, and described fastening foot is positioned at the interior edge face of described ring cowling; Described fan can also directly be formed by the magnetic shoe retainer bottom flywheel, and the fastening foot on described magnetic shoe retainer is stretched out from the exterior edge face of magnetic shoe thus formed fan blade.
Preferably, described fastening foot is inserted in the gap between described magnetic shoe, and the interior edge face of described ring cowling and the exterior edge face of described magnetic shoe fit together.
Further, the fastening foot on described magnetic shoe retainer lengthens, and the exposed parts of lengthening section defines the blade of centrifugal cutter.
Preferably, the internal diameter of described fan is not less than the external diameter of described generator unit stator.
Preferably, described fan is a kind of centrifugal fan.
Further, can reinforce with glue between described fastening foot and described magnetic shoe.
The beneficial effects of the utility model:
Center region between motor and generator is produced negative pressure by cooling fan of the present utility model, cool ambient air can directly be inhaled into motor and cool, and then motor local is cooled, to reduce engine oil temperature, prevent engine overheat, the generator set cooling order of realization the best of the utility model energy low cost, improves generator cooling effectiveness, and has that cost is low, the advantage of compact structure.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the solid of the fan of the utility model embodiment one;
Fig. 2 is the structure schematic diagram of the solid of the fan of the utility model embodiment one;
Fig. 3 is the schematic diagram entering the air-flow of fan of the utility model embodiment one;
Fig. 4 is the rear view of the fan of the utility model embodiment one;
Fig. 5 is the side view of the fan of the utility model embodiment one;
Fig. 6 is the front view of the fan of the utility model embodiment one;
Fig. 7 is the structural representation in the A-A cross section of the fan of the utility model embodiment one;
Fig. 8 is the structural representation in the B-B cross section of the fan of the utility model embodiment one;
Fig. 9 is the side structure schematic diagram of the generator of the utility model embodiment one;
Figure 10 is the rear view of the generator of the utility model embodiment one;
Figure 11 is the structural representation in the C-C cross section of the generator of the utility model embodiment one;
Figure 12 is the structural representation in the D-D cross section of the generator of the utility model embodiment one;
Figure 13 is the structural representation of the stator of the generator of the utility model embodiment one;
Figure 14 is the three-dimensional schematic rear view of the generator of the utility model embodiment one;
Figure 15 is the three-dimensional front schematic view of the generator of the utility model embodiment one;
Figure 16 is the exploded perspective view of the electric generator structure of the utility model embodiment one;
Figure 17 is the Facad structure schematic diagram of the generator driven by the engine of the utility model embodiment one;
Figure 18 is the structural representation in the E-E cross section of the generator driven by the engine of the utility model embodiment one;
Figure 19 is the structural representation that the utility model is applied to rear-mounted generator;
Figure 20 is the structural representation that the utility model is applied to front-located mode generator;
Figure 21 is the front schematic view of the solid of the fan of the utility model embodiment two;
Figure 22 is the schematic diagram entering the air-flow of fan of the utility model embodiment two;
Figure 23 is the schematic rear view of the solid of the fan of the utility model embodiment two;
Figure 24 is the front view of the fan of the utility model embodiment two;
Figure 25 is the side view of the fan of the utility model embodiment two;
Figure 26 is the rear view of the fan of the utility model embodiment two;
Figure 27 is the side structure schematic diagram of the generator of the utility model embodiment two;
Figure 28 is the rear view of the generator of the utility model embodiment two;
Figure 29 is the C-C schematic cross-section of the generator of the utility model embodiment two;
Figure 30 is the D-D schematic cross-section of the generator of the utility model embodiment two;
Figure 31 is the structural representation of the stator of the generator of the utility model embodiment two;
Figure 32 is the three-dimensional schematic rear view of the generator of the utility model embodiment two;
Figure 33 is the three-dimensional front schematic view of the generator of the utility model embodiment two;
Figure 34 is the exploded perspective view of the electric generator structure of the utility model embodiment two;
Figure 35 is the Facad structure schematic diagram of the generator driven by the engine of the utility model embodiment two;
Figure 36 is the structural representation in the E-E cross section of the generator driven by the engine of the utility model embodiment two.
Number in the figure illustrates: 1, fan, 2, blade, 3, fastening foot, 4, ring cowling, 5, enter the air-flow of fan, 6, air intake, 7, air-out, 8, generator, 9, rotor, 10, flywheel, 11, flywheel intake grill, 12, magnetic shoe, 13, magnetic shoe retainer, 14, stator, 15, stator iron core, 16, coil, 17, outsides cover of electric machinery, 18, outsides cover of electric machinery intake grill, 19, outsides cover of electric machinery exhaust outlet, 20, generator cooling air intake, 21, generator cooling air-out, 22, motor, 23, bent axle, 24, piston, 25, connecting rod, 26, crankcase body, 27, crankcase cover, 28, cooling fan of engine, 29, engine flywheel, 30, wind scooper, 31, hand starter, 32, baffler, 33, engine cooling air intake, 34, engine cooling air-out, 35, generator set cooling air-out, 36, fan internal diameter, 37, stator outer diameter.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in Fig. 1-Figure 36, for the fan structure of generator, fan 1 and generator 8, described fan 1 is arranged on the oral area of described generator 8 flywheel 10,
Described fan 1 comprises blade 2, fastening foot 3 and ring cowling 4, and described blade 2 is positioned at the exterior edge face of described ring cowling 4, and described fastening foot 3 is positioned at the interior edge face of described ring cowling; Described fan 1 can also directly be formed by the magnetic shoe retainer 13 bottom flywheel 10, and the fastening foot 3 on described magnetic shoe retainer 13 is stretched out from the exterior edge face of magnetic shoe 12 thus formed fan blade.
Preferably, described fastening foot 3 is inserted in the gap between described magnetic shoe 12, and the interior edge face of described ring cowling 4 and the exterior edge face of described magnetic shoe 12 fit together.
Further, the fastening foot 3 on described magnetic shoe retainer 13 lengthens, and the exposed parts of lengthening section defines the blade 2 of fan 1.
Preferably, the fan internal diameter 36 of described fan 1 is not less than the stator outer diameter 37 of described generator 8 stator 14.Because described fan 1 is not generally torn open not get off after being installed to flywheel 10 oral area, if the internal diameter of described fan 1 is less than the external diameter of the stator 14 of described generator 8, in dismounting stator 14 and rotor 9 process, can interfere with the outside of stator 14 inside described fan 1, described generator 8 cannot mount and dismount.
Preferably, described fan 1 is a kind of centrifugal fan.
Further, can reinforce with glue between described fastening foot 3 and described magnetic shoe 12.
Embodiment one:
Fan 1 is made up of blade 2, fastening foot 3 and ring cowling 4, and blade 2 and fastening foot 4 are lived apart the inside and outside both ends of the surface of ring cowling 4, and blade 2 is positioned at the exterior edge face of ring cowling 4, and fastening foot 3 is positioned at the interior edge face of ring cowling 4.Fastening foot 3 inserts the gap between magnetic shoe 12, and the exterior edge face of ring cowling 4 interior edge face and magnetic shoe 12 fits together.
The present embodiment has optimum fan structure, is best design of the present utility model
Embodiment two:
Fan 1 is directly formed by the magnetic shoe retainer 13 bottom flywheel 10, and the fastening foot 3 on magnetic shoe retainer 13 is stretched out from the exterior edge face of magnetic shoe 12 after lengthening, thus forms the blade of centrifugal cutter at the exposed parts of lengthening section.
The present embodiment has lower cost, is alternative of the present utility model
After adopting embodiment one or two, flywheel 10 oral area of generator 8 is arranged on bent axle towards motor, the cooling fan 1 being arranged on flywheel 10 oral area is between generator 8 and motor 22, when fan 1 rotates with rotor 9, negative pressure is formed in fan 1 center region, cool ambient air is inhaled into generator 8 from the flywheel intake grill 11 of rotor flywheel, the first cooled electric generator 8 of cool air, then enter in the gap between generator 8 and motor 22 and motor local is cooled, this contributes to reducing oil temperature, improve motor output power in high temperature environments, finally can cool silencing apparatus 32 as required.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. for the fan structure of generator, it is characterized in that, comprise fan (1) and generator (8), described fan (1) is arranged on the oral area of described generator (8) flywheel (10), described fan (1) comprises blade (2), fastening foot (3) and ring cowling (4), described blade (2) is positioned at the exterior edge face of described ring cowling (4), and described fastening foot (3) is positioned at the interior edge face of described ring cowling (4); Described fan (1) can also directly be formed by the magnetic shoe retainer (13) of flywheel (10) bottom, and the fastening foot (3) on described magnetic shoe retainer (13) is stretched out from the exterior edge face of magnetic shoe (12) thus forms fan blade.
2. the fan structure for generator according to claim 1, is characterized in that, described fastening foot (3) is inserted in the gap between described magnetic shoe (12), and the interior edge face of described ring cowling (4) and the exterior edge face of described magnetic shoe (12) fit together.
3. the fan structure for generator according to claim 1, is characterized in that, the fastening foot (3) on described magnetic shoe retainer (13) lengthens, and the exposed parts of lengthening section defines fan blade.
4. the fan structure for generator according to claim 1, is characterized in that, the fan internal diameter (36) of described fan (1) is not less than the stator outer diameter (37) of described generator (8) stator (14).
5. the fan structure for generator according to claim 1, is characterized in that, described fan (1) is a kind of centrifugal fan.
6. the fan structure for generator according to claim 2, is characterized in that, can reinforce between described fastening foot (3) and described magnetic shoe (12) with glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553258.XU CN204299945U (en) | 2014-09-25 | 2014-09-25 | For the fan structure of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553258.XU CN204299945U (en) | 2014-09-25 | 2014-09-25 | For the fan structure of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299945U true CN204299945U (en) | 2015-04-29 |
Family
ID=53105489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420553258.XU Withdrawn - After Issue CN204299945U (en) | 2014-09-25 | 2014-09-25 | For the fan structure of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533830A (en) * | 2014-09-25 | 2015-04-22 | 苏州圆能动力科技有限公司 | Fan structure for electricity generator |
-
2014
- 2014-09-25 CN CN201420553258.XU patent/CN204299945U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533830A (en) * | 2014-09-25 | 2015-04-22 | 苏州圆能动力科技有限公司 | Fan structure for electricity generator |
| CN104533830B (en) * | 2014-09-25 | 2017-05-03 | 苏州圆能动力科技有限公司 | Fan structure for electricity 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: 20150429 Effective date of abandoning: 20170503 |
|
| AV01 | Patent right actively abandoned |