CN203554195U - Cooling system for a variable frequency generator - Google Patents
Cooling system for a variable frequency generator Download PDFInfo
- Publication number
- CN203554195U CN203554195U CN201320627224.6U CN201320627224U CN203554195U CN 203554195 U CN203554195 U CN 203554195U CN 201320627224 U CN201320627224 U CN 201320627224U CN 203554195 U CN203554195 U CN 203554195U
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- cooling system
- engine
- generator
- frequency conversion
- rotor
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- Motor Or Generator Cooling System (AREA)
Abstract
This utility model provides a cooling system for a variable frequency generator, comprising a motor and a generator, and the cooling system also comprises an extended shaft. The generator also comprises two motor end caps with ventilation holes, a wind wheel, a rotor and a stator. The motor end caps are clamped to each other to form a receiving chamber, and the wind wheel, the rotor and the stator are received in the receiving chamber. The motor enables the extended shaft to drive the wind wheel to rotate such that negative pressure is formed within the receiving chamber. By positioning the wind wheel in the receiving chamber of the generator, the wind wheel can directly blow the cool wind to the rotor and the stator to improve the radiation efficiency, reduce the demagnetization rate of the magnet and impedance loss of the coil.
Description
Technical field
The utility model relates to variable-frequency power generation field, particularly a kind of cooling system of frequency conversion generator.
Background technology
At present, market up-conversion generator generally adopts permanent magnet generator, and this generator is in the powerful while of output, and stator and rotor all can produce a large amount of heat energy.If can not take away quickly these heats, will destroy the insulation property of stator and make on rotor magnet demagnetization, thereby reduce motor useful life, affect the performance of generator.
Existing frequency conversion generator comprises the frequency converter being arranged in order, a cooling fan, an engine and a generator, this frequency converter, this cooling fan, this engine and this generator are arranged in the space of a sealing, and this generator comprises a rotor and a stator.In the frequency conversion generator of this structure of employing, frequency converter is positioned at before cooling fan, in 8 air intake directions, will increase air intake resistance, therefore air quantity is little and flow velocity is slow; In addition, in view of casing and the Cylinder Head Temperature of engine are higher, therefore adopt the frequency conversion generator of this cooling air channel, can not dispel the heat preferably to rotor and stator, finally cause the demagnetization of epitrochanterian magnet, generating efficiency reduces, and stator coil impedance is increased and electric energy dissipates excessive.
Utility model content
The technical problems to be solved in the utility model is the defect that cooling system in order to overcome frequency conversion generator of the prior art can not dispel the heat preferably to rotor and stator, a kind of cooling system of frequency conversion generator is provided, the cooling system of this frequency conversion generator can dispel the heat preferably to rotor and stator, reduces magnet demagnetization rate and coil impedance.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of cooling system of frequency conversion generator, comprise an engine and a generator, its feature is, this cooling system also comprises an expanded shaft, this generator bag is lived two and is had the electric motor end cap of ventilation hole, a wind wheel, a rotor and a stator, those electric motor end caps mutually engage and form a containing cavity, and this wind wheel, this rotor and this stator are all arranged at this containing cavity, and this engine can be driven this wind wheel rotation and be made to form negative pressure in this containing cavity by this expanded shaft.
Preferably, this cooling system also comprises a frequency converter, this frequency converter comprises that a casing, turbofan, fin and one have the capping of shutter, and this turbofan and this fin are arranged in this casing, and this capping is sticked in the opening part of this casing.This turbofan sucks air-flow from the shutter of this capping, and flow through successively this pcb board and this fin, to pcb board, carries out air-cooled.
Preferably, this cooling system also comprises a muffler, and this muffler and this waste pipe are interconnected, and the cylinder head place near this muffler and this engine of those electric motor end caps is provided with steam vent.Muffler can reduce the pneumatic noise of blast pipe, by being provided with steam vent at the cylinder head place near this muffler and this engine, to realize wind energy that this generator discharges enough freeze this muffler and this engine.
Preferably, this cooling system also comprises a muffler, and this muffler and this waste pipe are interconnected, and close this muffler place of this casing is provided with steam vent.At the cylinder head place near this muffler and this engine, be provided with steam vent, to realize wind energy that this frequency converter discharges this muffler that enough freezes.
Preferably, this cooling system also comprises a ground connection crossbeam, and this frequency converter is fixed on this ground connection crossbeam.Ground connection crossbeam can facilitate the fastening of frequency converter and handling.
Preferably, this frequency converter comprises a pcb board, and this pcb board adheres on this fin, and this turbofan sucks air-flow from this shutter, and flow through successively this pcb board and this fin.This pcb board adheres on this fin, heat heat can be conducted to fin, through fin thermal radiation and high efficiency and heat radiation.
Preferably, this cooling system also comprises a wind scooper, a fan blade and a flywheel rotor, this wind scooper is sticked on this engine and forms a container cavity, this fan blade and this flywheel rotor are all arranged at this container cavity, and this engine can drive this fan blade and the rotation of this flywheel rotor and make formation negative pressure in this container cavity.
Preferably, this cooling system also comprises a bearing, and this expanded shaft is by this bearing and the mutual pivot joint of this stator.The use of bearing not only can reduce pivoting friction, and has guaranteed the axiality of the bent axle of this stator and engine.
Preferably, this generator also wraps the pressing plate of living, and this wind wheel is socketed on the fixed axis of this rotor and fixes by this pressing plate.Pressing plate can firmly fix wind wheel, prevents getting loose of wind wheel.
Preferably, this engine is petrol engine or Diesel engine, and this cooling system also comprises starter and is used to the storage battery of this starter power supply.By electricity, start this starter, can use this starter to drive the rotor of this engine, and then realize the object of ato unit, laborsaving and reliable.
Preferably, this cooling system also comprises that a beam and one is fixed on the vibration damper plate on this beam surface, and this vibration damper plate has two supports, and this engine is fixed on those supports.Beam and vibration damper plate can reduce engine luggine amplitude, have avoided engine frequent vibration clash into and damage.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the each preferred embodiments of the utility model.
Positive progressive effect of the present utility model is: by the containing cavity inside at generator, wind wheel is set, this wind wheel can directly blow to cold wind rotor and stator, has therefore improved radiating efficiency, reduces the demagnetization rate of magnet and the impedance loss of coil.
Accompanying drawing explanation
Fig. 1 is the explosive view of the cooling system of the frequency conversion generator of the utility model preferred embodiment.
Fig. 2 is the explosive view of the frequency converter of the cooling system of the frequency conversion generator of the utility model preferred embodiment.
Fig. 3 is the structural representation of the cooling system of the frequency conversion generator of the utility model preferred embodiment.
Description of reference numerals:
Wind scooper: 1 fan blade: 2
Flywheel rotor: 3 engines: 4
Bent axle: 5 left end caps: 6
The first bolt: 7 expanded shafts: 8
Nut: 9 second bolts: 10
Pressing plate: 11 wind wheels: 12
Rotor: 13 the 3rd bolts: 14
Stator: 15 right end caps: 16
The 4th bolt: 17 bearings: 18
The 5th bolt: 19 casings: 21
Turbofan: 22 fin: 23
Pcb board: 24 cappings: 25
Blast pipe: 30 mufflers: 40
Ground connection crossbeam: 50 starters: 60
Generator: 70 frequency converters: 80
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
The structure of the cooling system of the frequency conversion generator of the present embodiment is as follows:
Incorporated by reference to Fig. 1-3, understood, the cooling system of the frequency conversion generator of the present embodiment comprises an engine 4, muffler 40, ground connection crossbeam 50, starter 60, generator 70 and a frequency converter 80.This frequency converter 80 is fixed on this ground connection crossbeam 50.
This cooling system also comprises an expanded shaft 8, this generator 70 bags live two there is electric motor end cap (left end cap 6 and right end cap 16), two first bolt 7 of ventilation hole, nut 9, three the second bolt 10, pressing plate 11, wind wheel 12, rotor 13, three the 3rd bolts 14, stator 15, the 4th bolt 17, bearing 18 and the 5th bolt 19, those electric motor end caps mutually engage and form a containing cavity, and this wind wheel 12, this rotor 13 and this stator 15 are all arranged at this containing cavity.This wind wheel 12 is socketed on the fixed axis of this rotor 13 and is fixing by this pressing plate 11.This expanded shaft 8 is by this bearing 18 and the mutual pivot joint of this stator 15.The bent axle 5 of this engine 4 can drive this wind wheel 12 to rotate and make by this expanded shaft 8 and form negative pressure in this containing cavity.In this containing cavity, form after negative pressure, air-flow will flow into this containing cavity from the ventilation hole of electric motor end cap, and then carries out air-cooled to rotor 13 and stator 15.This expanded shaft 8 can provide comparatively abundant space for electric motor end cap; facilitated constructing of engine 4, generator 70 and frequency converter 80 hierarchical structures; between engine 4 and frequency converter 80, set generator 70; can protect frequency converter 80 in amplitude peak ground, to improve whole cooling system refrigeration and life-span.
Incorporated by reference to Fig. 2, understood, this frequency converter 80 comprises that a casing 21, turbofan 22, fin 23, pcb board 24 and one have the capping 25 of shutter, this turbofan 22 and this fin 23 are arranged in this casing 21, and this capping 25 is sticked in the opening part of this casing 21.This pcb board 24 adheres on this fin 23, and this turbofan 22 sucks air-flow from the shutter of this capping 25, and flow through successively this pcb board 24 and this fin 23.
This cooling system also comprises a wind scooper 1, fan blade 2 and a flywheel rotor 3, this wind scooper 1 is sticked on this engine 4 and forms a container cavity, this fan blade 2 and this flywheel rotor 3 are all arranged at this container cavity, and this engine 4 can drive this fan blade 2 and this flywheel rotor 3 to rotate and make formation negative pressure in this container cavity.
This starter 60 is equipped with storage battery, by electricity, starts this starter 60, can use this starter 60 to drive the rotor of this engine 4, and then realize the object of ato unit 4.This engine 4 can be petrol engine or Diesel engine.This cooling system can also comprise that a beam and one is fixed on the vibration damper plate on this beam surface, and this vibration damper plate has two supports, and this engine is fixed on those supports.
Incorporated by reference to Fig. 3, understood, this muffler 40 is interconnected with the blast pipe 30 of this engine 4.The cylinder head place near this muffler 40 and this engine 4 of those electric motor end caps (left end cap 6 and right end cap 16) is provided with steam vent, to realize wind energy that this generator 70 discharges enough freeze this muffler 40 and this engine 4.In addition, the cylinder head place near this muffler 40 and this engine 4 of this casing 21 is provided with steam vent, to realize wind energy that this frequency converter 80 discharges this muffler 40 that enough freezes.
Installation process and the operation principle of the cooling system of the frequency conversion generator of the present embodiment are as follows:
Incorporated by reference to Fig. 3, understood, during use, open starter 60, starter 60 drives the rotor of this engine 4, and then realizes the object of ato unit 4.The useless flue gas producing when engine 4 is worked is discharged by this blast pipe 30 and this muffler 40.
These engine 4 flywheel driven rotors 3 and fan blade 2 High Rotation Speeds, and then air-flow is introduced from this wind scooper 1, air-flow dispels the heat to heat radiation lamination and the cylinder head of engine 4.
This engine 4 drives wind wheel 12 High Rotation Speeds in generator 70 by expanded shaft 8, and the interior negative pressure that forms of the containing cavity that makes generator 70, make air-flow flow to G along the 7th and flow into this containing cavity from the ventilation hole of electric motor end cap (left end cap 6 and right end cap 16), and then carry out air-cooled to rotor 13 and stator 15.The wind of discharging through this generator 70 can also flow to H freeze this muffler 40 and this engine 4 along the 8th.
Opening after this turbofan 22, this turbofan 22 sucks air-flow along the first-class shutter to A from this capping 25, and along second to B with the 3rd flow to C flow through successively this pcb board 24 and this fin 23, then along the 4th, flow to D and suck turbofan 22 inside.The wind of discharging through this frequency converter 80 can also flow to E this muffler 40 that freezes along the 5th.
The cooling system of the frequency conversion generator of the present embodiment has following technique effect:
The first, demagnetization rate and impedance loss are all lower, in view of utilizing the law of electromagnetic induction, generator obtains magnetic strength electric current, the demagnetization rate of magnet can reduce the productive rate of electric energy, the impedance loss of coil can make again the electric energy consumption of output dissipate, therefore demagnetization rate and impedance loss be and crucial parameter, by the containing cavity inside at generator, wind wheel is set, and this wind wheel can directly blow to cold wind rotor and stator, therefore improve radiating efficiency, reduced the demagnetization rate of magnet and the impedance loss of coil.
The second, stability and the life-span of frequency converter have been improved, frequency converter can produce a large amount of heat energy in the process of alternating current being carried out to frequency conversion, rectification and filtering, this turbofan 22 sucks air-flow from the shutter of this capping 25, and flow through successively this pcb board 24 and this fin 23, pcb board 24 is carried out air-cooled, in addition, this pcb board 24 adheres on this fin 23, heat heat can be conducted to fin 23, through fin 23 thermal radiations and high efficiency and heat radiation.
Three, radiator structure is reasonable and efficient, the wind of discharging through this generator 70 can also freeze this muffler 40 and this engine 4, the wind of discharging through this frequency converter 80 this muffler 40 that can also freeze, reach the object of grading system cold-peace highly effective refrigeration, between generator 70 and frequency converter 80, be also provided with fluid passage in addition, so that fluid freezes along the 6th interaction that flows to F.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these execution modes, but these changes and modification all fall into protection range of the present utility model.
Claims (11)
1. the cooling system of a frequency conversion generator, comprise an engine and a generator, it is characterized in that, this cooling system also comprises an expanded shaft, this generator bag is lived two and is had the electric motor end cap of ventilation hole, a wind wheel, a rotor and a stator, those electric motor end caps mutually engage and form a containing cavity, and this wind wheel, this rotor and this stator are all arranged at this containing cavity, and this engine can be driven this wind wheel rotation and be made to form negative pressure in this containing cavity by this expanded shaft.
2. the cooling system of frequency conversion generator as claimed in claim 1, it is characterized in that, this cooling system also comprises a frequency converter, this frequency converter comprises that a casing, turbofan, fin and one have the capping of shutter, this turbofan and this fin are arranged in this casing, and this capping is sticked in the opening part of this casing.
3. the cooling system of frequency conversion generator as claimed in claim 2, it is characterized in that, this cooling system also comprises a muffler, and this muffler and this waste pipe are interconnected, and the cylinder head place near this muffler and this engine of those electric motor end caps is provided with steam vent.
4. the cooling system of frequency conversion generator as claimed in claim 2, is characterized in that, this cooling system also comprises a muffler, and this muffler and this waste pipe are interconnected, and close this muffler place of this casing is provided with steam vent.
5. the cooling system of the frequency conversion generator as described in any one in claim 2-4, is characterized in that, this cooling system also comprises a ground connection crossbeam, and this frequency converter is fixed on this ground connection crossbeam.
6. the cooling system of the frequency conversion generator as described in any one in claim 2-4, it is characterized in that, this frequency converter comprises a pcb board, and this pcb board adheres on this fin, this turbofan sucks air-flow from this shutter, and flow through successively this pcb board and this fin.
7. the cooling system of the frequency conversion generator as described in any one in claim 1-4, it is characterized in that, this cooling system also comprises a wind scooper, a fan blade and a flywheel rotor, this wind scooper is sticked on this engine and forms a container cavity, this fan blade and this flywheel rotor are all arranged at this container cavity, and this engine can drive this fan blade and the rotation of this flywheel rotor and make formation negative pressure in this container cavity.
8. the cooling system of frequency conversion generator as claimed in claim 7, is characterized in that, this cooling system also comprises a bearing, and this expanded shaft is by this bearing and the mutual pivot joint of this stator.
9. the cooling system of frequency conversion generator as claimed in claim 7, is characterized in that, this generator also wraps the pressing plate of living, and this wind wheel is socketed on the fixed axis of this rotor and fixes by this pressing plate.
10. the cooling system of frequency conversion generator as claimed in claim 7, is characterized in that, this engine is petrol engine or Diesel engine, and this cooling system also comprises starter and is used to the storage battery of this starter power supply.
The cooling system of 11. frequency conversion generators as claimed in claim 7, is characterized in that, this cooling system also comprises that a beam and one is fixed on the vibration damper plate on this beam surface, and this vibration damper plate has two supports, and this engine is fixed on those supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627224.6U CN203554195U (en) | 2013-10-11 | 2013-10-11 | Cooling system for a variable frequency generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627224.6U CN203554195U (en) | 2013-10-11 | 2013-10-11 | Cooling system for a variable frequency generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203554195U true CN203554195U (en) | 2014-04-16 |
Family
ID=50472257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320627224.6U Expired - Fee Related CN203554195U (en) | 2013-10-11 | 2013-10-11 | Cooling system for a variable frequency generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203554195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124825A (en) * | 2014-06-04 | 2014-10-29 | 华中科技大学 | Variable-frequency generator |
-
2013
- 2013-10-11 CN CN201320627224.6U patent/CN203554195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124825A (en) * | 2014-06-04 | 2014-10-29 | 华中科技大学 | Variable-frequency generator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161011 |