CN203747552U - Cooling system of inverter generator - Google Patents
Cooling system of inverter generator Download PDFInfo
- Publication number
- CN203747552U CN203747552U CN201420109754.6U CN201420109754U CN203747552U CN 203747552 U CN203747552 U CN 203747552U CN 201420109754 U CN201420109754 U CN 201420109754U CN 203747552 U CN203747552 U CN 203747552U
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- China
- Prior art keywords
- generator
- cooling system
- shield
- frequency conversion
- fan blade
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- Expired - Fee Related
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Abstract
The utility model provides a cooling system of an inverter generator. The cooling system comprises an engine body provided with an engine crankshaft, a generator front end cover used as a generator coupling plate, and a generator housing. The generator housing is internally provided with a generator comprising a generator stator and a generator rotor, a group of blades which are installed on the generator rotor and can rotate along with the rotor, a rear end cover fixed on the generator housing, and a control panel. The generator front end cover is installed on the engine body, the generator rotor sleeves the engine crankshaft, the generator stator is installed on the front edge of the generator front end cover, the generator front end cover is provided with a plurality of ventilating openings, and the control panel is electrically connected with an engine. According to the utility model, the generator can be rapidly cooled, more cost is not generated, the generator stator and the generator rotor can be fully cooled, at the same time, the power loss is also reduced, the operation reliability of the generator is ensured, and the service life of the generator is prolonged.
Description
Technical field
The utility model relates to a kind of cooling system of frequency conversion generator.
Background technology
At present, the variable-frequency power generation unit on market generally adopts permanent magnet, and this generator is in the powerful while of output, and stator can produce a large amount of heat energy.If can not take away quickly this part heat energy, can cause local overheating, destroy the insulating properties of stator and cause rotor magnet demagnetization, thereby affect power and the useful life of generator.
The cooling system of the generator on existing market adopts axial flow type heat radiation mode more, adopts a cooling fan, and fan is arranged on or is fixed on rotor by parts, utilizes generator casing, forms a ducting system.Axial flow radiating mode is limit because of electric fan area and structure, causes air quantity little, and noise is large.For increasing cooling effect, often adopt the height that adds big blade.Yet so not only increased the overall structure size of unit, and cannot reach desirable economic benefit.
Utility model content
The technical problems to be solved in the utility model is in order to overcome frequency conversion generator cooling system cooling weak effect and the bulky defect of prior art, provide a kind of can be to the quick cooling cooling system that need not produce again the frequency conversion generator of too much cost of generator.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of cooling system of frequency conversion generator, its feature is, it includes: one has the engine body of an engine crankshaft, one front end of shield as generator tie-plate, one generator casing, this generator casing is built-in with a generator that comprises a generator unit stator and a generator amature, the fan blade that an assembling is located on this generator amature and can rotates with rotor, one is fixed on the rear end cap on this generator casing, and a control panel; This front end of shield is installed on this engine body, this generator amature is set on this engine crankshaft, this generator unit stator is installed on the seam of front end of shield, and this front end of shield is provided with some ventilating openings, and this control panel is electrically connected to this engine.
Preferably, the seam of this front end of shield is the protruding mounting plane being formed on this front end of shield.
Preferably, this group fan blade is centrifugal turbine fan blade, and this group centrifugal turbine fan blade is installed on the seam of this generator amature, and affixed by bolt.Wind-force when this programme adopts centrifugal turbine fan blade can make fan blade rotation is more powerful, dispels the heat faster.This programme adopts centrifugal turbine fan blade reason to be: first, axial-flow leaf is compared with centrifugal turbine fan blade pluses and minuses:
Axial-flow leaf: axial-flow leaf be air inlet/outlet direction and fan blade rotation in the horizontal direction, what it adopted is blowing principle; Therefore, wind flow is large, and blast is little;
Centrifugal turbine fan blade: i.e. air draft direction is in the normal direction of fan blade rotation, and what adopt is air draught principle, and therefore, wind flow is relatively smaller, and blast is large.
And conventionally between the stator of common generating set and rotor gap all can do as much as possible little, such as, be less than 0.5mm, and between stator winding, gap is also very little.Therefore, need enough powerful blast just can make cooling air between rotor, winding gap high speed is passed through, and reaches cooling object.
So this programme adopts the design of installing centrifugal turbine fan blade at generator amature additional, speed stabilizing balance but also cooled electric generator stator had fast not only been played a part.
Preferably, this generator casing is provided with four cylindrical holes and some reinforcements, and all sides of this generator casing are provided with air outlet and are arranged on the air outlet guard board on those air outlets.
Preferably, the cooling system of this frequency conversion generator also comprises that one for supporting the frame of this cooling system, some protective plates and muffler, described protective plate is arranged on respectively frame sidepiece and top, and described muffler is arranged on the double-screw bolt at air outlet place of this generator casing.
Preferably, the magnet steel on this generator amature is thulium permanent magnet.This thulium permanent magnet is commercially available material, and the magnetic field intensity of this kind of magnet steel, much larger than the current general common magnet steel of ferrite, can, in the situation that generator outside dimension is identical, obtain the above more electric power energy of several times.
Preferably, on this engine body, installed for starter and the storage battery of power are provided.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains each preferred embodiment of the utility model.
Positive progressive effect of the present utility model is: the utility model drives the rotation of centrifugal turbine fan blade to produce powerful blast by generator, suck cold air, to engine body and generator unit stator and generator amature carry out fully cooling after, from the air outlet of generator casing both sides, discharge.Therefore, cooled electric generator stator and generator amature have also reduced power loss simultaneously fully, have guaranteed generator operation reliability, have extended the useful life of generator.
Accompanying drawing explanation
Fig. 1 is the three-dimensional broken away view of cooling system of the frequency conversion generator of the utility model one embodiment.
Fig. 2 is the assembly structure cutaway view of cooling system of the frequency conversion generator of the utility model one embodiment.
Fig. 3 is the air inlet/outlet principle schematic of the cooling system in Fig. 2.
Description of reference numerals:
Engine body 1, engine crankshaft 2, front end of shield 3, generator unit stator 4,
Generator casing 5, generator amature 6, centrifugal turbine fan blade 7, rear end cap 8, bolt made in U.S.A 9,
M10 bolt 10, generator amature pressing plate 11, bolt made in U.S.A 12,
Generator casing set bolt 13, fan blade set bolt 14, air outlet guard board 15,
Air outlet guard board hold-down screw 16, commutator end bearing support bracket set bolt 17,
Front end of shield seam A, stator seam B, generator amature seam C
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Embodiment
As shown in Figures 1 to 3, the utility model provides a kind of cooling system of frequency conversion generator, it comprises engine body 1, engine crankshaft 2, front end of shield 3, bolt made in U.S.A 9, generator unit stator 4, M10 bolt 10, generator casing 5, generator amature 6, centrifugal turbine fan blade 7, generator amature pressing plate 11, bolt made in U.S.A 12, generator tie-plate, air-out case, generator casing set bolt 13, fan blade set bolt 14, air outlet guard board 15, air outlet guard board hold-down screw 16, commutator end bearing support bracket set bolt 17; Front end of shield is arranged on generator casing 5 and is provided with air inlet, and air outlet guard board 15 is arranged on the position of the air outlet of generator casing 5 both sides.
On motor front end cover, be formed with protruding mounting plane, the periphery of projection is provided with 4 ventilating openings.Stator seam B(is installed referring to Fig. 1 on front end of shield 3) and four bolts hole and reinforcement, right outside face has louvre and wire hole (for the hole of electric power output line outlet), is also provided with reinforcement around.Generator unit stator is arranged on the front end of shield as generator tie-plate, and generator amature is arranged on engine crankshaft 2, and centrifugal turbine fan blade 7 is installed on generator amature, with fan blade set bolt 14, is fixed and clamped.
Described generator casing is provided with four cylindrical holes and reinforcement, and its week side is provided with air outlet and the fixing installing hole of air outlet guard board 15 use.
The utility model also comprises the control panel in a solid externally frame.This control panel can adopt the control panel of known engine of the prior art to realize, and this control panel is partly prior art, and and therefore not to repeat here.
Preferably, the cooling system of described frequency conversion generator also comprises protective plate, muffler.Protective plate is arranged on respectively frame sidepiece and top, and muffler can be arranged on the double-screw bolt at air outlet place of generator casing.
Wind-force when this programme adopts centrifugal turbine fan blade can make fan blade rotation is more powerful, dispels the heat faster.And adopt the design of installing centrifugal turbine fan blade at generator amature 6 additional, not only played a part speed stabilizing balance but also cooled electric generator stator fast.In addition, on engine body 1, installed for starter and the storage battery of power are provided.
Referring to Fig. 1, generator installation steps are as follows: front end of shield 3 is fixed on engine body 1, generator is fixed on front end of shield 3, with bolt 12 made in U.S.A, by generator amature pressing plate 11, generator amature 6 is fixed on engine crankshaft 2, centrifugal turbine fan blade 7 is fixed by bolts on generator amature 6; Front end of shield seam A (this place's seam Main Function is generator casing 5 fixedly provide installation position) is provided generator unit stator 4, with four bolts, fixes.It is upper that centrifugal turbine fan blade is installed on generator amature seam C (this generator amature seam be mainly for centrifugal turbine fan blade 7 installation position is fixedly provided), with four bolts, fixes.Generator casing 5 is fixed on front end of shield 3, and rear end cap 8 is fixed on generator casing 5.
Generator cooling principle of the present utility model is: driven by engine generator High Rotation Speed, from the air inlet of front end of shield, suck cold air, the centrifugal turbine fan blade 7 being fixed on generator amature 6 by rotation produces powerful centrifugal air-out, make formation negative pressure in generator, cooling air enters generator from generator connecting disk position air inlet, pass through generator unit stator, gap between generator amature, stator, the heat that rotor dispersing sends is taken away, abundant cooled electric generator stator and generator amature, reach cooled electric generator, reduce power loss, guaranteed generator operation reliability, extended the useful life of generator.
Especially, magnet steel on the generator amature that generator of the present utility model uses is thulium permanent magnet (being that magnetic field sources is thulium permanent magnet), the magnetic field intensity of this kind of magnet steel is much larger than the current general common magnet steel of ferrite, can, in the situation that generator outside dimension is identical, obtain the above more electric power energy of several times; But the temperature coefficient of this kind of magnet steel remanent magnetism (temperature coefficient of remanent magnetism can simplicity of explanation be the down ratio in magnetic field under unit temperature) is higher than common ferrite magnetic steel.Therefore, this case mainly solves is under loss smaller power, by engine body, produces stronger cooling air-out, greatly reduces the temperature of the winding of the magnet steel on generator amature and generator unit stator in generator, thereby reduces power loss.
Hence one can see that, the utility model produces centrifugal powerful blast by the rotation of centrifugal turbine fan blade, from the air inlet of front end of shield 3, suck cooling-air, fully generator unit stator, generator amature are carried out to cooling down, and the functions such as the rotation of the brute force of centrifugal turbine fan blade can also be exported hot blast by the air outlet guard board at air outlet place, generator casing both sides, cools to reach generator, noise reduction.
Although more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and are not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these execution modes.Therefore, protection range of the present utility model is limited by appended claims.
Claims (7)
1. the cooling system of a frequency conversion generator, it is characterized in that, it includes: one has the engine body of an engine crankshaft, one front end of shield as generator tie-plate, one generator casing, this generator casing is built-in with a generator that comprises a generator unit stator and a generator amature, the fan blade that an assembling is located on this generator amature and can rotates with rotor, one is fixed on the rear end cap on this generator casing, and a control panel; This front end of shield is installed on this engine body, this generator amature is set on this engine crankshaft, this generator unit stator is installed on the seam of front end of shield, and this front end of shield is provided with some ventilating openings, and this control panel is electrically connected to this engine.
2. the cooling system of frequency conversion generator as claimed in claim 1, is characterized in that, the seam of this front end of shield is the protruding mounting plane being formed on this front end of shield.
3. the cooling system of frequency conversion generator as claimed in claim 1, is characterized in that, this group fan blade is centrifugal turbine fan blade, and this group centrifugal turbine fan blade is installed on the seam of this generator amature, and affixed by bolt.
4. the cooling system of frequency conversion generator as claimed in claim 1, is characterized in that, this generator casing is provided with four cylindrical holes and some reinforcements, and the side face of this generator casing is provided with air outlet and is arranged on the air outlet guard board on those air outlets.
5. the cooling system of frequency conversion generator as claimed in claim 1, it is characterized in that, this cooling system also comprises that one for supporting the frame of this cooling system, some protective plates and muffler, described protective plate is arranged on respectively frame sidepiece and top, and described muffler is arranged on the double-screw bolt at air outlet place of this generator casing.
6. the cooling system of frequency conversion generator as claimed in claim 1, is characterized in that, the magnet steel on this generator amature is thulium permanent magnet.
7. the cooling system of frequency conversion generator as claimed in claim 1, is characterized in that, has installed for starter and the storage battery of power are provided on this engine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109754.6U CN203747552U (en) | 2014-03-11 | 2014-03-11 | Cooling system of inverter generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109754.6U CN203747552U (en) | 2014-03-11 | 2014-03-11 | Cooling system of inverter generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747552U true CN203747552U (en) | 2014-07-30 |
Family
ID=51347308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420109754.6U Expired - Fee Related CN203747552U (en) | 2014-03-11 | 2014-03-11 | Cooling system of inverter generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638811A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Radiating device of vertical motor |
| CN104917329A (en) * | 2014-03-11 | 2015-09-16 | 上海狮虎能源科技股份有限公司 | Cooling system of variable frequency generator |
-
2014
- 2014-03-11 CN CN201420109754.6U patent/CN203747552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917329A (en) * | 2014-03-11 | 2015-09-16 | 上海狮虎能源科技股份有限公司 | Cooling system of variable frequency generator |
| CN104638811A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Radiating device of vertical motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20150311 |
|
| EXPY | Termination of patent right or utility model |