CN101975189A - Air cooling generator and cooling fan thereof - Google Patents
Air cooling generator and cooling fan thereof Download PDFInfo
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- CN101975189A CN101975189A CN 201010555466 CN201010555466A CN101975189A CN 101975189 A CN101975189 A CN 101975189A CN 201010555466 CN201010555466 CN 201010555466 CN 201010555466 A CN201010555466 A CN 201010555466A CN 101975189 A CN101975189 A CN 101975189A
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- mounting plate
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- generator
- fan
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Abstract
The invention discloses a cooling fan of an air cooling generator, comprising a front mounting plate, a rear mounting plate and a fan blade mounted between the front mounting plate and the rear mounting plate. The far end of the fan blade is connected to the front mounting plate; the near end of the fan blade is connected to the rear mounting plate; the rear mounting plate is provided with a mounting hole adapted to a crankshaft of the generator; the front mounting plate is provided with a central through hole; and at least one part of a projection of the fan blade on the mounting plate falls in the area where the central through hole locates. As the front mounting plate of the cooling fan is provided with the central through hole, air can enter from both sides of the fan, is blown to the outside diameter of the fan through rotation of the fan blade and is gathered into cooling air to cool a silencer so that the fan blade with a single-sided fin can achieve the cooling effect of a fan blade with a double-sided fin. The invention also provides an air cooling generator with the cooling fan.
Description
Technical field
The present invention relates to air-cooled technical field of generators, more particularly, relate to a kind of air-cooled generator and cooling fan thereof.
Background technique
Generator is when work, because the impedance of its stator coil, electric current by the time have heat and send, also can produce a large amount of heats during the running of motor, cause motor body temperature inside higher, particularly small enclosed generator set at present, owing to make every effort to the miniaturization of profile, generally do not establish cooling system, just come cooled engine and generator by the air free flow in the case, unit can not the long-time continuous operation like this.Because not to the direct cooling of motor and generator, the heat that motor and generator produce can not be discharged timely, can not in time being cooled of motor and generator causes the also very fast rising of the temperature of rotor that permanent magnet is housed, the also very fast rising of the temperature of motor and generator.For permanent magnet generator, the temperature controlling that influences of decision permanent magnet performance is a problem that need are to be solved.
The type of cooling of existing generator has water-cooled and air-cooled dual mode, and water-cooled generator mainly is the water tank that places the generator outside specially by, and this water tank links to each other with the generator different parts by a plurality of water pipes, thereby realizes the different parts cooling of motor.Because the water-cooled generator connects water pipe, mounting arrangements also is subject to many limitations, and degrees of freedom reduces, and leakproof seal requires high, the manufacture cost height.In addition, water-cooled generator each several part inhomogeneous cooling is even, and heat exchange is insufficient, and the motor external pipe is many, and volume ratio is bigger, installs inconvenient.At these situations, to some use that dust storm in the open air is big, the generator of rugged environment relatively such as oil field, for reducing the generator manufacture cost, improve the functional reliability of generator, thereby and adopt built-in fans to carry out the air-cooled generator that exchange along separate routes reduces temperature rise.
Existing air-cooled generator generally is made up of casing, case lid, bent axle, fan, motor, electrical machinery cover, silencing apparatus, muffler cover etc., and the end of muffler outer hood has exhaust outlet, and motor is made up of motor stator and rotor.Casing is connected by bolt with case lid, bent axle by bearing fixing on casing and case lid, fan, rotor, motor stator are installed in the case lid side along bent axle successively, electrical machinery cover covers on motor and fan outside, by being bolted on the case lid, silencing apparatus is arranged on the top of electrical machinery cover, is covered by muffler outer hood outside it.
At present, the cooling fan of air-cooled generator is cooled off motor and silencing apparatus by the motor ventilating fan air inducing of single face fin, or by the motor ventilating fan air inducing of two-sided fin motor and silencing apparatus is cooled off.There is the incomplete problem of cooling in the motor ventilating fan of single face fin, though the cooling of the motor ventilating fan of two-sided fin comprehensively, the motor ventilating fan of single face fin exists complex manufacturing technology, the problem that fabricating cost is high relatively.
Summary of the invention
Purpose of the present invention provides a kind of cooling fan of air-cooled generator, with under the prerequisite that reduces fabricating cost, improves its cooling effect.Another object of the present invention provides a kind of air-cooled generator, to improve the cooling effectiveness of this generator.
For achieving the above object, the invention provides following technological scheme:
A kind of cooling fan of air-cooled generator, comprise front mounting plate and back mounting plate, and radiation be installed in described front mounting plate and the back flabellum between the mounting plate, and the far-end of described flabellum is connected on the described front mounting plate, near-end is connected on the mounting plate of described back, offer the mounting hole adaptive on the mounting plate of described back with the bent axle of generator, offer central through bore on the described front mounting plate, the projection of described flabellum on plane, described front mounting plate place has at least a part to fall in the zone at described central through bore place.
Preferably, in the cooling fan of above-mentioned air-cooled generator, described central through bore is a circular hole, and its diameter is greater than the overall dimensions of described back mounting plate.
Preferably, in the cooling fan of above-mentioned air-cooled generator, described flabellum is tabular, and is equally distributed a plurality of along described front mounting plate circumferencial direction.
A kind of air-cooled generator, comprise: casing, case lid, bent axle, be set in cooling fan and motor body on the described bent axle, be located in electrical machinery cover, the silencing apparatus on the described motor body and be located in muffler cover on the described silencing apparatus, described cooling fan is aforesaid cooling fan.
Preferably, in above-mentioned air-cooled generator, offer exhaust outlet on the described muffler cover.
Preferably, in above-mentioned air-cooled generator, offer first intake grill on the described electrical machinery cover.
Preferably, in above-mentioned air-cooled generator, offer second intake grill on the described case lid.
From above-mentioned technological scheme as can be seen, cooling fan provided by the invention, by two mounting plates are set, with being installed between two mounting plates of flabellum radiation, and the far-end of flabellum is linked to each other with front mounting plate, near-end links to each other with the back mounting plate, offer central through bore on the front mounting plate, can make the two sides of fan can air intake, the wind that the two sides is advanced be thrown to the external diameter of fan by the rotation of flabellum, and merges into one cooling air silencing apparatus is cooled off, thereby make the fan of single face fin can reach the cooling effect of two-sided fin fan, and compare with the preparation process of two-sided fin fan, the present invention is simple in structure, and is easy to make.
Air-cooled generator provided by the invention is compared with the fan that uses the single face fin by adopting above-mentioned cooling fan, has improved cooling effect, can avoid damaging owing to silencing apparatus, motor and motor body are overheated.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of air-cooled generator cooling fan provided by the invention;
The plan view of the air-cooled generator cooling fan that Fig. 2 provides for the embodiment of the invention;
The rear view of the air-cooled generator cooling fan that Fig. 3 provides for the embodiment of the invention;
The side view of the air-cooled generator cooling fan that Fig. 4 provides for the embodiment of the invention;
The sectional view of the air-cooled generator that Fig. 5 provides for the embodiment of the invention;
The side view of the air-cooled generator that Fig. 6 provides for the embodiment of the invention;
The plan view of the air-cooled generator that Fig. 7 provides for the embodiment of the invention;
The cooling wind rose of the air-cooled generator that Fig. 8 provides for the embodiment of the invention.
Embodiment
The invention discloses a kind of air-cooled generator and cooling fan thereof,, improve its cooling effect with under the prerequisite that reduces fabricating cost.
Main inventive concept of the present invention is to make the motor ventilating fan of single face fin have the cooling effect of the motor ventilating fan of two-sided fin, keeps the motor ventilating fan preparation process of single face fin simple simultaneously, the advantage that fabricating cost is low.Important improvement point of the present invention is to have vent hole at the front mounting plate of cooling fan and back between the flabellum between the mounting plate, so that the two sides of fan can air intake, improves cooling air quantity and cooling effect.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who is obtained under the creative work prerequisite.
See also Fig. 1-Fig. 4, Fig. 1 is the structural representation of air-cooled generator cooling fan provided by the invention; The plan view of the air-cooled generator cooling fan that Fig. 2 provides for the embodiment of the invention; The rear view of the air-cooled generator cooling fan that Fig. 3 provides for the embodiment of the invention; The side view of the air-cooled generator cooling fan that Fig. 4 provides for the embodiment of the invention.
Wherein, 11 is front mounting plate, and 12 is the back mounting plate, and 13 is flabellum, and 111 is central through bore.
The cooling fan of air-cooled generator provided by the invention, comprise front mounting plate 11 and back mounting plate 12, and radiation be installed in described front mounting plate 11 and the back flabellum 13 between the mounting plate 12, front mounting plate 11 and back mounting plate 12 are installed the basis for flabellum 13 provides.The far-end of flabellum 13 is connected on the described front mounting plate 11, and near-end is connected on the mounting plate 12 of described back.
Offer the mounting hole adaptive on the back mounting plate 12 with the bent axle of generator, cooling fan provided by the invention is to be assemblied on the bent axle of generator by the mounting hole on the mounting plate 12 of back, general in order to guarantee the installation stability of cooling fan, edge at back mounting plate 12 is distributed with mounting ear, offer the construction bolt hole on the mounting ear, by the construction bolt hole on the mounting ear cooling fan is fixed on the rotor, with stable same bent axle and rotor co-rotation.Of the present invention focusing on offers central through bore 111 on the front mounting plate 11, the projection of described flabellum 13 on plane, described front mounting plate 11 place has at least a part to fall in the zone at described central through bore 111 places.Be flabellum 13 stretch into central through bore 111 to flabellum 13 directions along it in axially extended zone, thereby make rotation by flabellum 13, can be with air by central through bore 111 flow-disturbings to arbitrarily between adjacent two flabellums 13, and discharge along the external diameter of flabellum 13.
Cooling fan provided by the invention, by on the basis of single face fin fan, on its front mounting plate 11, offer central through bore 111, because back mounting plate 12 is less with respect to flabellum, therefore can make the two sides of fan can air intake, the wind that the two sides is advanced is thrown to the external diameter of fan by the rotation of flabellum, and merge into one cooling air silencing apparatus is cooled off, thereby make the fan of single face fin can reach the cooling effect of two-sided fin fan, and compare with the preparation process of two-sided fin fan, the present invention is simple in structure, and is easy to make.
Central through bore 111 can be opened in the central position of front mounting plate 11, and is preferably circular port, and circular port is easy to processing, and can guarantee the incoming air area maximum.Preferably make the overall dimensions of the diameter of this central through bore 111, promptly, enough effective incoming air areas are arranged to guarantee it greater than the distance between two mounting ears of back mounting plate 12 greater than described back mounting plate 12.
See also Fig. 5-Fig. 8, the sectional view of the air-cooled generator that Fig. 5 provides for the embodiment of the invention; The side view of the air-cooled generator that Fig. 6 provides for the embodiment of the invention; The plan view of the air-cooled generator that Fig. 7 provides for the embodiment of the invention; The cooling wind rose of the air-cooled generator that Fig. 8 provides for the embodiment of the invention.
Air-cooled generator provided by the invention, comprise: casing, case lid 7, bent axle 5, be set in cooling fan 1 and motor body on the described bent axle 5, be located in electrical machinery cover 6, the silencing apparatus 4 on the described motor body and be located in muffler cover 8 on the described silencing apparatus 4, wherein cooling fan 1 is aforesaid cooling fan that can the two sides air intake.Bent axle 5 by bearing fixing on casing and case lid 7, the motor body that is made of rotor 3 and motor stator 2 is contained on the bent axle 5 of case lid 7 sides successively, cooling fan 1 is set on the bent axle, and be assemblied on the rotor, electrical machinery cover 6 covers on the outside of motor body and cooling fan 1, and by being bolted on the case lid 7.
The cooling wind energy sucks from the two sides of cooling fan 1, by the rotation of cooling fan 1, the cooling air that flabellum sucks the two sides is thrown to the external diameter of fan, forms one cooling air, by the cooling air after compiling silencing apparatus is cooled off, the heat of silencing apparatus is taken away rapidly.
Preferably, on muffler cover 8, offer exhaust outlet 81; On electrical machinery cover 6, offer first intake grill 61; On case lid 7, offer second intake grill 71.By offering intake grill and exhaust outlet, make air-cooled generator provided by the invention have two air channels in above-mentioned position.
Air channel one: under the effect of cooling fan 1, cold wind enters in the electrical machinery cover 6 by the intake grill on the electrical machinery cover 6 61, and the cold wind motor body of flowing through cools off motor body, gathering by cooling fan 1 behind the cooling motor body is with the cooling air silencing apparatus 4 that leads.
Air channel two: under the effect of cooling fan 1, the hot blast in the case enters cooling fan 1 through second intake grill 71, and silencing apparatus 4 then leads cooling air.
Two strands of cooling airs in air channel one and air channel two through cooling fans 1 synthetic one cooling airs after guiding silencing apparatus 4, silencing apparatus 4 is cooled off, the exhaust outlet 81 from the muffler cover 8 of silencing apparatus 4 is discharged then, finishes whole cool cycles.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. the cooling fan of an air-cooled generator, it is characterized in that, comprise front mounting plate (11) and back mounting plate (12), and radiation be installed in flabellum (13) between described front mounting plate (11) and back mounting plate (12), and the far-end of described flabellum (13) is connected on the described front mounting plate (11), near-end is connected on the described back mounting plate (12), offer the mounting hole adaptive on the described back mounting plate (12) with 1 bent axle of generator, offer central through bore (111) on the described front mounting plate (11), the projection of described flabellum (13) on described front mounting plate (11) plane, place has at least a part to fall in the zone at described central through bore (111) place.
2. the cooling fan of air-cooled generator as claimed in claim 1 is characterized in that, described central through bore (111) is a circular hole, and its diameter is greater than the overall dimensions of described back mounting plate (12).
3. the cooling fan of air-cooled generator as claimed in claim 1 is characterized in that, described flabellum (13) is tabular, and is equally distributed a plurality of along described front mounting plate (11) circumferencial direction.
4. air-cooled generator, comprise: casing, case lid (7), bent axle (5), be set in cooling fan (1) and motor body on the described bent axle (5), be located in electrical machinery cover (6), the silencing apparatus (4) on the described motor body and be located in muffler cover (8) on the described silencing apparatus (4), it is characterized in that described cooling fan (1) is each described cooling fan of claim 1-3.
5. air-cooled generator as claimed in claim 4 is characterized in that, offers exhaust outlet (81) on the described muffler cover (8).
6. air-cooled generator as claimed in claim 4 is characterized in that, offers first intake grill (61) on the described electrical machinery cover (6).
7. air-cooled generator as claimed in claim 4 is characterized in that, offers second intake grill (71) on the described case lid (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555466 CN101975189A (en) | 2010-11-22 | 2010-11-22 | Air cooling generator and cooling fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555466 CN101975189A (en) | 2010-11-22 | 2010-11-22 | Air cooling generator and cooling fan thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101975189A true CN101975189A (en) | 2011-02-16 |
Family
ID=43575094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010555466 Pending CN101975189A (en) | 2010-11-22 | 2010-11-22 | Air cooling generator and cooling fan thereof |
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| Country | Link |
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| CN (1) | CN101975189A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121417A (en) * | 2011-03-25 | 2011-07-13 | 重庆力华科技有限责任公司 | Minitype generator |
| US20160134174A1 (en) * | 2014-11-07 | 2016-05-12 | Industrial Technology Research Institute | Heat dissipation apparatus for motors |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62250842A (en) * | 1986-04-23 | 1987-10-31 | Fuji Electric Co Ltd | Internal ventilation-type rotary electric machine |
| CN2914469Y (en) * | 2006-04-13 | 2007-06-20 | 郑胡铃 | Generator rotor fan |
| CN101363362A (en) * | 2008-09-10 | 2009-02-11 | 蒋坚 | Cooling method special for electric generator and enclosed gasoline generating set using the method |
| CN101603459A (en) * | 2009-04-30 | 2009-12-16 | 蔡建平 | Diesel generating set |
-
2010
- 2010-11-22 CN CN 201010555466 patent/CN101975189A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62250842A (en) * | 1986-04-23 | 1987-10-31 | Fuji Electric Co Ltd | Internal ventilation-type rotary electric machine |
| CN2914469Y (en) * | 2006-04-13 | 2007-06-20 | 郑胡铃 | Generator rotor fan |
| CN101363362A (en) * | 2008-09-10 | 2009-02-11 | 蒋坚 | Cooling method special for electric generator and enclosed gasoline generating set using the method |
| CN101603459A (en) * | 2009-04-30 | 2009-12-16 | 蔡建平 | Diesel generating set |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121417A (en) * | 2011-03-25 | 2011-07-13 | 重庆力华科技有限责任公司 | Minitype generator |
| CN102121417B (en) * | 2011-03-25 | 2012-09-26 | 重庆力华科技有限责任公司 | Minitype generator |
| US20160134174A1 (en) * | 2014-11-07 | 2016-05-12 | Industrial Technology Research Institute | Heat dissipation apparatus for motors |
| US10243431B2 (en) | 2014-11-07 | 2019-03-26 | Industrial Technology Research Institute | Heat dissipation apparatus for motors |
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Application publication date: 20110216 |