CN207353993U - A kind of small-size wind power-generating closed permanent magnet generator - Google Patents
A kind of small-size wind power-generating closed permanent magnet generator Download PDFInfo
- Publication number
- CN207353993U CN207353993U CN201721332745.3U CN201721332745U CN207353993U CN 207353993 U CN207353993 U CN 207353993U CN 201721332745 U CN201721332745 U CN 201721332745U CN 207353993 U CN207353993 U CN 207353993U
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- China
- Prior art keywords
- permanent magnet
- shell
- cooling air
- air channel
- magnet generator
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- 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.)
- Withdrawn - After Issue
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- 238000001816 cooling Methods 0.000 claims abstract description 69
- 238000004804 winding Methods 0.000 claims abstract description 17
- 230000017525 heat dissipation Effects 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a kind of small-size wind power-generating closed permanent magnet generator, including casing, rotor core, stator core, stator winding and motor shaft, the casing includes front casing and rear casing, further include radiator and heat dissipation channel, radiator includes radiator and kuppe, heat dissipation channel, heat dissipation channel include rotor cooling air channel, permanent magnet cooling air channel, stator cooling air channel and rear casing heat dissipation wind channel, and the rotor core both ends of the surface are equipped with nonmagnetic substance partition plate.The utility model can make full use of the internal structure of permanent magnet generator so that the heat inside permanent magnet generator can obtain effectively heat exchange and distribute, so that it is guaranteed that magnetic comprehensive performance and generating efficiency, the quality of permanent magnet generator.
Description
Technical field
The utility model belongs to technical field of generators, and in particular to a kind of small-size wind power-generating is generated electricity with closed permanent magnet
Machine.
Background technology
Permanent magnet generator, it is formed including casing, shaft, bearing, rotor, stator and cooling fan substantially.In order to dissipate
The heat produced in generator operation due to copper loss and iron loss is removed, casing is often provided with heat emission hole；But small wind is sent out
Motor needs to run outdoors, in order to ensure its service life, it is desirable to and permanent magnet generator therein need to be closed type generator,
And require the volume of motor as small as possible.Due to no heat emission hole, also cross-ventilation, permanent magnetism are carried out without enough inner spaces
Cooling fan in generator, just without existing meaning in the closed motor.
The radiating mode that the permanent magnet generator of small-size wind power-generating is taken at present is that arrangement one encloses cooling fin on the shell
Piece.It is extraneous distinguished and admirable to take away permanent magnet generator table when small-sized wind power generator is running power generation under conditions of having wind
The heat in face.And so there are one it is larger the problem of, i.e.,：The heat of generator be by the winding of generator, stator core and
What rotor core produced, but their direct metals between generator casing are connected very little, and the heat of generation mainly passes through sky
Gas convection current is on shell；There is provided that the area of heat exchange is small due to the low heat conductivity of air, and on shell, this heat sink conception
Consequence is in full-load run, and the internal core temperature of permanent magnet generator is often higher by 20~40 DEG C than shell；Particularly rotor
On permanent magnet, even if the groove as permanent magnet cooling air channel is provided with rotor core, but due in groove air deficiency it is axial
Flowing, exacerbates the heating of permanent magnet；The remanent magnetism of permanent magnet, coercivity, magnetic energy product etc. can all be raised with the temperature of permanent magnet
And reduce, when temperature reaches 100 DEG C, magnetic comprehensive performance declines quickly, and output power is reduced, and efficiency reduces.
Utility model content
To be sent out to solve the above problems, the purpose of this utility model is to provide a kind of small-size wind power-generating with closed permanent magnet
Motor, can make full use of the internal structure of permanent magnet generator so that the heat inside permanent magnet generator can effectively be exchanged heat
Distribute, so that it is guaranteed that magnetic comprehensive performance and generating efficiency, the quality of permanent magnet generator.
To achieve the above object, the utility model is achieved by following technical scheme：
A kind of small-size wind power-generating closed permanent magnet generator described in the utility model, including casing, rotor core,
Stator core, stator winding and motor shaft, are equipped with the casing：
Radiator, including radiator and kuppe for promoting casing internal gas to flow, the motor shaft run through
It is fixed in the casing, the radiator, rotor core are sequentially arranged on the motor shaft in the casing, the water conservancy diversion
Cover center, which is equipped with, to be used to coordinate the through hole that the radiator uses, and the kuppe corresponds to the radiator and is arranged at the casing
It is interior；
Heat dissipation channel, including the shell radiation air that electric generator inner cooling is but formed between air passage and the kuppe and the shell
Road.
Preferably, but air passage is cold including rotor cooling air channel, permanent magnet cooling air channel and stator for the electric generator inner cooling
But air passage, the rotor cooling air channel are arranged in rotor core, are embedded with some permanent magnets in rotor core, the permanent magnet with
At intervals on the side of rotor core, the stator cooling air channel is arranged in the shell permanent magnet cooling air channel
Side.
Preferably, the shell includes front casing and rear casing, pass through bolt between the front casing and the rear casing
It is fastenedly connected, motor shaft is equipped with least two ball roller bearings with the front casing junction.
Preferably, the radiator is aerofoil fan, the aerofoil fan is set close to rotor core end face, the axis
Circlip is equipped between flow fan and rotor core, nonmagnetic substance partition plate is equipped with the rotor core both ends of the surface.
Preferably, the shelling machine is cylinder, the kuppe corresponds to the shell and is arranged to circular ring shape, described
Kuppe into concentric circles and is embedded in the shell with the shell, the kuppe diameter and stator winding outer circumference diameter one
Cause.
Preferably, the shell is arranged to cone, the kuppe corresponds to the shell and is arranged to circular cone annular, institute
Kuppe and the shell are stated into concentric circles and is embedded in the shell, the kuppe outside diameter and stator winding periphery
Diameter is consistent.
Preferably, the rotor cooling air channel includes at least two, the rotor cooling air channel is using motor shaft as the center of circle
It is evenly distributed in a ring in rotor core.
Preferably, the stator cooling air channel includes at least three, the stator cooling air channel is using motor shaft as the center of circle
It is evenly distributed in a ring on the inside of the front casing.
Preferably, the root angle of attack of the axial fan blade is 30~40 °, attacked at the top of the axial fan blade
Angle is 25~35 °.
Preferably, it is provided with fixed connecting base on the shell.
Compared with prior art, the beneficial effects of the utility model are：
The 1st, matching for front casing and rear casing is set, both ensure that the tight requirements of closed permanent magnet generator, together
When can also make between permanent magnet generator shell and air carry out heat exchange area substantially increase, improve heat exchange efficiency, and
And rear casing is equipped with that the fixed connecting base of installation can be fixed so that whole permanent magnet generator use it is more convenient,
Reliably；
2nd, the motor shaft in the prior art is mostly the form that both ends are fixed, in the technical program, by motor shaft end
Aerofoil fan is set, and circlip is provided between aerofoil fan and rotor core so that rotor axis stream when operating rotation
Fan produces draught head so as to promote the air speed of casing internal also with rotation so that when rotor and winding
Fever can be distributed timely, ensure magnetic comprehensive performance and generating efficiency；
3rd, rotor cooling air channel, permanent magnet cooling air channel, stator cooling wind are provided with the technical program, in rotor core
Road and rear casing heat dissipation wind channel, pass through the setting of kuppe and aerofoil fan so that permanent magnet generator in the running, aerofoil fan
The air in permanent magnet cooling air channel, rotor cooling air channel, stator cooling air channel and rear casing heat dissipation wind channel is forced to carry out convection current,
So as to make full use of the increased heat exchange surface of rear casing institute, the temperature of generator air is further reduced, makes stator and turns
Son, particularly permanent magnet obtain effective temperature-reducing, so that the permanent magnet of permanent magnet generator, electric property and mechanical performance holding can
Lean on, ensure the power output of generator, extend the service life of permanent magnet generator.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is the utility model closed permanent magnet generator assembling structure schematic diagram；
Fig. 2 is the utility model closed permanent magnet generator schematic cross-sectional view；
Fig. 3 is the utility model closed permanent magnet generator front casing cross section structure diagram；
Fig. 4 is structure enlargement diagram at the utility model closed permanent magnet generator a；
In figure：1st, front casing, 11, stator cooling air channel, 12, bolt, 2, rear casing, 21, rear casing heat dissipation wind channel, 22,
Fixed connecting base, 3, motor shaft, 31, ball roller bearing, 4, rotor core, 41, rotor cooling air channel, 42, nonmagnetic substance
Partition plate, 5, stator core, 51, stator winding, 6, aerofoil fan, 61, circlip, 7, kuppe, 8, permanent magnet, 81, permanent magnetism
Body cooling air channel.
Embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
As shown in the figure, a kind of small-size wind power-generating closed permanent magnet generator described in the utility model, including casing,
Rotor core 4, stator core 5, stator winding 51 and motor shaft 3, the casing include front casing 1 and rear casing 2, further include：
Radiator, including radiator and kuppe 7, the radiator are arranged on 3 end of motor shaft, on motor shaft 3 also according to
Secondary to be connected with rotor core 4 and the front casing 1, the kuppe 7 corresponds to stator winding 51 and is arranged in the rear casing 2；
Heat dissipation channel, including rotor cooling air channel 41, permanent magnet cooling air channel 81, stator cooling air channel 11 and rear casing dissipate
Hot-flow flue 21, the rotor cooling air channel 41 are arranged in rotor core 4, and some permanent magnets 8 are embedded with rotor core 4, described
Permanent magnet 8 is arranged on 4 side of rotor core at intervals with the permanent magnet cooling air channel 81, and the stator cooling air channel 11 is set
In the inner side of front casing 1, the rear casing heat dissipation wind channel 21 is equipped between the kuppe 7 and the rear casing 2；The rotor
4 both ends of the surface of iron core are equipped with nonmagnetic substance partition plate 42.
It is fastenedly connected between the front casing 1 and the rear casing 2 by bolt 12, motor shaft 3 is connected with the front casing 1
Place is equipped with least one ball roller bearing 31, since traditional 3 twin fixed guide-vane of motor shaft is designed as unilateral fixation, this technology
Motor shaft 3 should be equipped with 2 or 2 bearings described above with 1 junction of front casing in scheme, to ensure the standard of the movement of motor shaft 3
Exactness；The radiator is aerofoil fan 6, and the aerofoil fan 6 is set close to 4 end face of rotor core, the aerofoil fan 6 with
Circlip 61 is equipped between rotor core 4, the root angle of attack of 6 blade of aerofoil fan is 30~40 °, the aerofoil fan 6
The top angle of attack of blade is 25~35 °.
The rear casing 2 may be designed as cylinder, and the kuppe 7 corresponds to the rear casing 2 and is arranged to circular ring shape, described
Kuppe 7 into concentric circles and is embedded in the rear in shell 2 with the rear casing 2,7 diameter of kuppe and stator winding 51
Outer circumference diameter is consistent；Similarly, in order to reduce air drag, the wind-driven generator for ensureing to be installed shaft end can with efficient operation,
Meanwhile 2 tail end of rear casing can generally install the tail vane for wind-driven generator to wind, fairshaped rear casing 2 can ensure sky
Airflow field is stablized, and is conducive to the tail vane stabilization of wind-driven generator to wind, therefore the rear casing 2 is preferably set to cone；
The kuppe 7 corresponds to the rear casing and is arranged to circular cone annular, and 7 outside diameter of kuppe and 51 periphery of stator winding are straight
Footpath is consistent, and is provided with fixed connecting base 22 on shell 2 in the rear.
The rotor cooling air channel 41 includes at least two, and rotor cooling air channel described in the technical program 41 is designed as four
Bar, is evenly distributed in rotor core 4 in a ring with motor shaft 3 for the center of circle；The stator cooling air channel 11 includes at least three,
The stator cooling air channel 11 is evenly distributed on the inner side of front casing 1, the rotor cooling in a ring with motor shaft 3 for the center of circle
The specific quantity that opens up of air passage 41 and stator cooling air channel 11 is related to the radiating efficiency of permanent magnet generator, can be according to actually required
It is adjusted.
The front casing 1 of cylinder and approximately conical rear casing 2, are linked together by bolt 12, form permanent magnetism hair
The shell of motor is overall, and rear casing 2 is improved by small-sized wind power generator seat, thus still carries small-sized wind power generator seat
Effect, i.e., the tail vane and wind wheel of fixed small-sized wind power generator, and by flange by whole units' installation to pylon top
On slip ring；Stator insertion comprising stator winding 51 is installed in front casing 1, the periphery wall of stator core 5 and front casing 1 it
Between be equipped with some stator cooling air channels 11, provide return flow line for cooling air, and cool down stator core 5.
Motor shaft 3 is installed on front casing 1 by bearing, its lateral ends is used for the wind for installing small-sized wind power generator
Wheel, inner opposite end installation rotor of permanent-magnetic power generator；Permanent magnet cooling air channel 81 is left between permanent magnet 8 on rotor, and
Rotor core 4 and nonmagnetic substance partition plate 42 for fixed permanent magnet 8 then leave rotor cooling air channel 41, permanent magnet cooling
The axial flowing of air passage 81 and rotor cooling air channel 41 for air in the rotor provides passage.
Aerofoil fan 6 is installed on the inner opposite end of motor shaft 3 by circlip 61, and is close to rotor core 4；Axis stream wind
Fan 6 is rotated with rotor, and positive pressure is produced in the end of permanent magnet cooling air channel 81 and rotor cooling air channel 41, drives two cooling wind
The axial flow of air in road, and the suction side of aerofoil fan 6 is most flowed back to through stator cooling air channel 11 afterwards.
The hollow flow-guiding cover 7 of cone is embedded in inside rear casing 2, the periphery of 7 outside diameter of kuppe and stator winding 51
Diameter is roughly equal, and the space between kuppe 7 and rear casing 2 becomes rear casing heat dissipation wind channel 21, due to small-size wind power-generating
Machine rotating speed is generally the slow-speed of revolution of 400~1000RPM, and the size-constrained and air flow resistance of permanent magnet cooling air channel 81 compared with
Greatly, therefore the axial flow velocity of permanent magnet generator inner air will not be very big；Kuppe 7 can ensure that air is cooled down from stator
Air passage 11 will not directly be back to the suction side of aerofoil fan 6 after flowing back to, but first pass through rear casing heat dissipation wind channel 21, outside rear
The wall of shell 2 carries out aerofoil fan 6 is flowed back in sufficiently heat exchange from 2 rear portion of rear casing again suction side after cooling down.
The beneficial effects of the utility model are：
The 1st, matching for front casing and rear casing is set, both ensure that the tight requirements of closed permanent magnet generator, together
When can also make between permanent magnet generator shell and air carry out heat exchange area substantially increase, improve heat exchange efficiency, and
And rear casing is equipped with that the fixed connecting base of installation can be fixed so that whole permanent magnet generator use it is more convenient,
Reliably；
2nd, the motor shaft in the prior art is mostly the form that both ends are fixed, in the technical program, by motor shaft end
Aerofoil fan is set, and circlip is provided between aerofoil fan and rotor core so that rotor axis stream when operating rotation
Fan produces draught head so as to promote the air speed of casing internal also with rotation so that when rotor and winding
Fever can be distributed timely, ensure magnetic comprehensive performance and generating efficiency；
3rd, rotor cooling air channel, permanent magnet cooling air channel, stator cooling wind are provided with the technical program, in rotor core
Road and rear casing heat dissipation wind channel, pass through the setting of kuppe and aerofoil fan so that permanent magnet generator in the running, aerofoil fan
The air in permanent magnet cooling air channel, rotor cooling air channel, stator cooling air channel and rear casing heat dissipation wind channel is forced to carry out convection current,
So as to make full use of the increased heat exchange surface of rear casing institute, the temperature of generator air is further reduced, makes stator and turns
Son, particularly permanent magnet obtain effective temperature-reducing, so that the permanent magnet of permanent magnet generator, electric property and mechanical performance holding can
Lean on, ensure the power output of generator, extend the service life of permanent magnet generator.
The above descriptions are merely preferred embodiments of the present invention, and not the utility model is made in any form
Limitation, it is therefore every without departing from the content of the technical scheme of the utility model, implement according to the technical essence of the utility model to more than
Example any modification, equivalent variations and the modification made, in the range of still falling within technical solutions of the utility model.
Claims (10)
1. a kind of small-size wind power-generating closed permanent magnet generator, including shell, rotor core, stator core, stator winding
And motor shaft, it is characterised in that be equipped with the shell：
Radiator, including radiator and kuppe for promoting enclosure gas to flow, the motor shaft is through fixation
In the shell, the radiator, rotor core are sequentially arranged on the motor shaft being located in the shell, in the kuppe
The heart, which is equipped with, to be used to coordinate the through hole that the radiator uses, and the kuppe corresponds to the radiator and is arranged in the shell；
Heat dissipation channel, including the shell heat dissipation wind channel that electric generator inner cooling is but formed between air passage and the kuppe and the shell.
A kind of 2. small-size wind power-generating closed permanent magnet generator according to claim 1, it is characterised in that the hair
Cooling air channel includes rotor cooling air channel, permanent magnet cooling air channel and stator cooling air channel, the rotor cooling air channel in motor
Some permanent magnets are embedded with rotor core, in rotor core, the permanent magnet is alternate with the permanent magnet cooling air channel
It is arranged on every ground on the side of rotor core, the stator cooling air channel is arranged on the inside of the shell.
3. a kind of small-size wind power-generating closed permanent magnet generator according to claim 2, it is characterised in that described outer
Shell includes front casing and rear casing, is bolted connection between the front casing and the rear casing, motor shaft with it is described before
At least two ball roller bearings are equipped with cage connection.
4. a kind of small-size wind power-generating closed permanent magnet generator according to claim 1, it is characterised in that described to dissipate
Hot device is aerofoil fan, and the aerofoil fan sets close to rotor core end face, is equipped between the aerofoil fan and rotor core
Circlip, is equipped with nonmagnetic substance partition plate in the rotor core both ends of the surface.
5. a kind of small-size wind power-generating closed permanent magnet generator according to claim 1, it is characterised in that described outer
Shell is designed as cylinder, and the kuppe corresponds to the shell and is arranged to circular ring shape, and the kuppe and the shell are into concentric
Justify and be embedded in the shell, the kuppe diameter is consistent with stator winding outer circumference diameter.
6. a kind of small-size wind power-generating closed permanent magnet generator according to claim 1, it is characterised in that described outer
Shell is arranged to cone, and the kuppe corresponds to the shell, and to be arranged to circular cone annular, and the kuppe and the shell are into same
Heart circle is simultaneously embedded in the shell, and the kuppe outside diameter is consistent with stator winding outer circumference diameter.
7. a kind of small-size wind power-generating closed permanent magnet generator according to claim 2, it is characterised in that described turn
Sub- cooling air channel includes at least two, and the rotor cooling air channel is evenly distributed on rotor core in a ring by the center of circle of motor shaft
On.
8. a kind of small-size wind power-generating closed permanent magnet generator according to claim 3, it is characterised in that described fixed
Sub- cooling air channel includes at least three, and the stator cooling air channel is evenly distributed on described preceding outer in a ring using motor shaft as the center of circle
On the inside of shell.
A kind of 9. small-size wind power-generating closed permanent magnet generator according to claim 4, it is characterised in that the axis
The root angle of attack of flow fan blade is 30~40 °, and the top angle of attack of the axial fan blade is 25~35 °.
10. a kind of small-size wind power-generating closed permanent magnet generator according to claim 1, it is characterised in that described
Fixed connecting base is provided with shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332745.3U CN207353993U (en) | 2017-10-17 | 2017-10-17 | A kind of small-size wind power-generating closed permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332745.3U CN207353993U (en) | 2017-10-17 | 2017-10-17 | A kind of small-size wind power-generating closed permanent magnet generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207353993U true CN207353993U (en) | 2018-05-11 |
Family
ID=62354864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721332745.3U Withdrawn - After Issue CN207353993U (en) | 2017-10-17 | 2017-10-17 | A kind of small-size wind power-generating closed permanent magnet generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207353993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528423A (en) * | 2017-10-17 | 2017-12-29 | 广州市香港科大霍英东研究院 | A kind of small-size wind power-generating closed permanent magnet generator |
-
2017
- 2017-10-17 CN CN201721332745.3U patent/CN207353993U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107528423A (en) * | 2017-10-17 | 2017-12-29 | 广州市香港科大霍英东研究院 | A kind of small-size wind power-generating closed permanent magnet generator |
| CN107528423B (en) * | 2017-10-17 | 2024-04-09 | 广州市香港科大霍英东研究院 | Closed permanent magnet generator for small wind power generation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20240409 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180511 Effective date of abandoning: 20240409 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |