CN201221440Y - Small-sized wind power generator - Google Patents
Small-sized wind power generator Download PDFInfo
- Publication number
- CN201221440Y CN201221440Y CNU2008200508517U CN200820050851U CN201221440Y CN 201221440 Y CN201221440 Y CN 201221440Y CN U2008200508517 U CNU2008200508517 U CN U2008200508517U CN 200820050851 U CN200820050851 U CN 200820050851U CN 201221440 Y CN201221440 Y CN 201221440Y
- Authority
- CN
- China
- Prior art keywords
- small
- brake rotors
- main shaft
- wind power
- wind
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 8
- 230000004224 protection Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides a minitype wind-driven generator. The output power curve of the minitype wind-driven generator is flat under the circumstance of big wind, and the wind-driven generator can be protected from being damaged under the circumstance of ultra-large scale wind. The wind-driven generator comprises an impeller, a main shaft, a casing, a generator rotor and a generator stator. The impeller is arranged at the front end of the main shaft; the generator rotor and the generator stator are arranged on the front part inside the casing, the generator rotor is connected with the main shaft by spline, a braking rotor is fixedly connected with the end of the main shaft, a cavity is arranged at the rear part inside the casing, and the shape of the braking rotor matches the shape of the cavity; one or more than one permanent magnet are embedded on the braking rotor; a spring mounting cavity is arranged at the rear part of the cavity in an extending manner, and a spring is arranged in the spring mounting hole; one end of the spring is fixedly connected with the inner surface of the casing, and the other end contacts with the braking rotor.
Description
Technical field
The utility model relates to a kind of small-sized wind power generator.
Background technique
Clean energy resource is the human main energy sources that will use in 21 century, in clean energy resource, the use of wind energy because have that equipment manufacturing cost is lower, characteristics such as pollution-free in the device fabrication process, running environmental friendliness, long service life have obtained fast-developing and use.Small-sized wind power generator because use flexibly, cost is low, resource is not had harsh the requirement and will become the green energy resource product of a large amount of uses.
The protection of the strong wind of small-sized wind power generator be related to small-sized wind power generator can large-scale popularization key in application problem; the small-sized wind power generator of present power below 5kW is mainly by modes such as blade stall protection, tail vane driftage protection, electromagnetic braking protection and integrated protections, but these modes all can not reach the requirement of high reliability.
The energy theorem of wind:
As can be seen, under certain air density ρ and the wind sweeping area A of unit, the energy of wind is directly proportional with the cube of its speed from formula.And small-sized wind power generator is operated in overhead height 20m with interior elevation, mainly also will stand the test of hurricane simultaneously by absorbing earth surface wind, so the suffered wind energy variation of blade is huge.In the extreme wind speeds of 60m/s, the variation of energy will reach 8000 times at the startup wind speed of 3m/s.Small-sized wind power generator will adapt to so big energy changing, must have suitable reliable technique to guarantee, the small-sized wind power generator large size is promoted the use of.
Summary of the invention
For solving the prior art problem, the utility model provides a kind of small-sized wind power generator, realizes that the curve of small-sized wind power generator its output power under the strong wind situation is smooth, and can protect wind-driven generator to avoid damaging under super large landscape condition.
For solving the problems of the technologies described above the technical solution of the utility model be: a kind of small-sized wind power generator comprises impeller, main shaft, housing, generator amature and generator unit stator composition; Impeller is arranged on the front end of main shaft, and generator amature and generator unit stator are arranged at the front portion in the housing, and generator amature is connected by spline with main shaft; It is characterized in that: at the terminal fixedly connected brake rotors of described main shaft, the rear portion in housing is provided with a cavity, and the shape of described brake rotors is agreed with mutually with the shape of described cavity; Be embedded with one or more permanent magnet on the described brake rotors; Extension is provided with a spring installation cavity behind described cavity, and spring is arranged in the spring installation cavity, and described spring one end is fixedlyed connected with shell inner surface, and the other end contacts with described brake rotors.
As improvement, described brake rotors is a wedge-like body.
As improvement, described cavity is and the wedge shape space of described brake rotors with tapering.
As improvement, the height of described wedge shape space is greater than the height of wedge-like body.
As improvement, described permanent magnet is arranged on the brake rotors at interval.
As improvement, described outer surface of outer cover is provided with radiating fin.
As improvement, state spring center and spindle axis on same straight line.
Compared with prior art, the utility model is at the terminal fixedly connected brake rotors that is embedded with permanent magnet of main shaft, brake rotors moves backward when strong wind, produce electromagnetic induction with housing, begin to occur inductive loop in the metal shell, the electromagnetic field that this eddy current produces will produce reverse electromagnetic damping to brake rotors, suppress the rising of impeller speed.In super large wind, brake rotors further moves backward, and brake rotors directly contacts with the metal shell internal surface, produces mechanical braking.In addition, also be provided with radiating fin at the metal shell outer surface.
The beneficial effect that the utility model brought is:
1. owing to be provided with brake rotors at the main shaft end, brake rotors and housing produce bigger electromagnetic damping in the time of strong wind, suppress the rising of impeller speed, the generator that makes can be exported stable electric power in strong wind, make output power curve become smooth.
2. owing to be provided with brake rotors at the main shaft end, in super large wind, brake rotors contacts with shell inner surface and produces mechanical braking; the housing that utilizes generator is as the braking stator; good heat dissipation, braking force is big, makes to realize protective action to generator in super large wind.
3. because metal shell is provided with radiating fin outward, can effectively distribute the heat that housing produces because of eddy current.
Description of drawings
Fig. 1 is the small-sized wind power generator sectional structure chart
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Please refer to Fig. 1, the utility model comprises impeller 1, main shaft 5, housing 4, generator amature 2 and generator unit stator 3 compositions; Impeller 1 is arranged on the front end of main shaft 5, and generator amature 2 and generator unit stator 3 are arranged at the front portion in the housing 4, and described generator amature 2 and described main shaft 5 are connected by spline.At the terminal fixedly connected brake rotors 6 of described main shaft 5, described brake rotors 6 be a wedge-like body, on the described brake rotors also the interval be embedded with permanent magnet 7; Rear portion in described housing 4 is provided with a cavity, and described cavity is and the wedge shape space of described brake rotors 6 with tapering; Extension is provided with a spring installation cavity behind described cavity, and spring 8 is arranged in the spring installation cavity, and described spring 8 one ends are fixedlyed connected with housing 4 internal surfaces, and the other end contacts with described brake rotors 6.
Wind-driven generator is operated in when starting between wind speed and the rated wind speed, the suffered axial wind pressure ratio of impeller 1 is less, the distance that main shaft 5 moves backward is less, because described spring 8 centers and main shaft 5 axle center are on same straight line, be fixedly connected on the brake rotors 6 beginning front extrusion springs 8 of main shaft 5 ends, be subjected to the front reaction force of spring 8, because axial pressure is less, spring 8 is compressed a bit of distance, the gap of the internal surface of brake rotors 6 outer surfaces and housing 4 rear ends is bigger, the magnetic intensity that produces between permanent magnet 7 on the brake rotors 6 and the metal shell 4 is lower, 4 very little inductive loops of generation of housing, can not form big electromagnetic damping, this moment, wind-driven generator ran well, and exported normal electric power.Wind-driven generator generally operates in this state, and therefore, the suffered axial pressure of described spring is very little generally speaking, spring can be in very long operating life the conformity of guaranteed performance.
Wind-driven generator is operated in when exceeding the quata to decide wind speed, the suffered axial wind pressure ratio of impeller 1 is bigger, the axial pressure that forms on the impeller 1 makes the brake rotors 6 of fixedlying connected with main shaft 5 move to housing 4 rear end cavitys by main shaft 5,6 pairs of springs 8 of brake rotors have bigger extruding force, spring 8 is compressed a segment length, thereby the brake rotors 6 and the gap of rear end housing 4 internal surfaces are reduced, the magnetic intensity that produces between permanent magnet 7 on the brake rotors 6 and the metal shell 4 increases, can be so that begin to occur bigger inductive loop in the metal shell 4, the electromagnetic field that this eddy current produces will produce reverse electromagnetic damping to brake rotors 6.The load of impeller 1 begins to increase the weight of, thereby has limited the rising of impeller 1 rotating speed, the electric power of generator output is become stablize smooth.In addition, because housing 4 outer surfaces are provided with radiating fin, the heat that inductive loop produced in the metal shell 4 outwards distributes by radiating fin.
When wind-driven generator is operated in super large wind; suffered axially rather windy of impeller 1; the axial pressure that forms on the impeller 1 makes the brake rotors 6 of fixedlying connected with main shaft 5 further move to housing 4 rear end cavitys by main shaft 5; brake rotors 6 extrusion springs 8; be subjected to the reaction force of spring 8; because axially the reaction force of wind pressure ratio spring 8 is a lot of greatly; spring 8 is extruded to the generation largest deformation; brake rotors 6 will contact with housing 4 rear end internal surfaces this moment; contact back brake rotors 6 forms mechanical braking with housing 4 lockings; effectively suppressed the ultra high speed operation of generator amature 2 under super large wind; the housing that utilizes generator is as the braking stator; good heat dissipation, braking force is big, thereby has protected generator to avoid damaging.
Claims (7)
1, a kind of small-sized wind power generator comprises impeller, main shaft, housing, generator amature and generator unit stator composition; Impeller is arranged on the front end of main shaft, and generator amature and generator unit stator are arranged at the front portion in the housing, and generator amature is connected by spline with main shaft; It is characterized in that: at the terminal fixedly connected brake rotors of described main shaft, the rear portion in housing is provided with a cavity, and the shape of described brake rotors is agreed with mutually with the shape of described cavity; Be embedded with one or more permanent magnet on the described brake rotors; Extension is provided with a spring installation cavity behind described cavity, and spring is arranged in the spring installation cavity, and described spring one end is fixedlyed connected with shell inner surface, and the other end contacts with described brake rotors.
2, small-sized wind power generator according to claim 1 is characterized in that: described brake rotors is a wedge-like body.
3, small-sized wind power generator according to claim 2 is characterized in that: described cavity is and the wedge shape space of described brake rotors with tapering.
4, small-sized wind power generator according to claim 3 is characterized in that: the height of described wedge shape space is greater than the height of wedge-like body.
5, small-sized wind power generator according to claim 4 is characterized in that: described permanent magnet is arranged on the brake rotors at interval.
6, small-sized wind power generator according to claim 5 is characterized in that: described spring center and spindle axis are on same straight line.
7, small-sized wind power generator according to claim 1 is characterized in that: described outer surface of outer cover is provided with radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200508517U CN201221440Y (en) | 2008-07-18 | 2008-07-18 | Small-sized wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200508517U CN201221440Y (en) | 2008-07-18 | 2008-07-18 | Small-sized wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221440Y true CN201221440Y (en) | 2009-04-15 |
Family
ID=40574948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200508517U Expired - Lifetime CN201221440Y (en) | 2008-07-18 | 2008-07-18 | Small-sized wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221440Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561103B (en) * | 2009-05-14 | 2011-04-20 | 象山欧曼机电有限公司 | Wind and light complementary beacon light device |
| US20110187107A1 (en) * | 2009-01-05 | 2011-08-04 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator and method of controlling the wind turbine generator |
| CN102606398A (en) * | 2011-01-24 | 2012-07-25 | 西门子公司 | Wind turbine with a brake device and method for braking as well as use of the brake device |
| CN102996349A (en) * | 2011-09-08 | 2013-03-27 | 上海久能能源科技发展有限公司 | Vertical wind turbine with lifting fan blades |
| GB2500643A (en) * | 2012-03-28 | 2013-10-02 | Tidal Generation Ltd | Turbine braking system |
| CN106089580A (en) * | 2016-06-16 | 2016-11-09 | 虞伟明 | A kind of wind-driven generator with automatic protection functions |
| CN106968887A (en) * | 2016-07-28 | 2017-07-21 | 湖南三人能源科技股份有限公司 | A kind of speed stabilizing method and system of wind generator system |
| CN114635933A (en) * | 2022-03-24 | 2022-06-17 | 泰州市大川机械配件有限公司 | Aerogenerator bearing self-locking device |
-
2008
- 2008-07-18 CN CNU2008200508517U patent/CN201221440Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110187107A1 (en) * | 2009-01-05 | 2011-08-04 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator and method of controlling the wind turbine generator |
| CN101561103B (en) * | 2009-05-14 | 2011-04-20 | 象山欧曼机电有限公司 | Wind and light complementary beacon light device |
| CN102606398A (en) * | 2011-01-24 | 2012-07-25 | 西门子公司 | Wind turbine with a brake device and method for braking as well as use of the brake device |
| CN102996349A (en) * | 2011-09-08 | 2013-03-27 | 上海久能能源科技发展有限公司 | Vertical wind turbine with lifting fan blades |
| GB2500643A (en) * | 2012-03-28 | 2013-10-02 | Tidal Generation Ltd | Turbine braking system |
| GB2500643B (en) * | 2012-03-28 | 2014-03-26 | Tidal Generation Ltd | Turbine and braking system therefor |
| CN106089580A (en) * | 2016-06-16 | 2016-11-09 | 虞伟明 | A kind of wind-driven generator with automatic protection functions |
| CN106089580B (en) * | 2016-06-16 | 2019-04-12 | 新昌县城南乡量新机械厂 | A kind of wind-driven generator with automatic protection functions |
| CN106968887A (en) * | 2016-07-28 | 2017-07-21 | 湖南三人能源科技股份有限公司 | A kind of speed stabilizing method and system of wind generator system |
| CN114635933A (en) * | 2022-03-24 | 2022-06-17 | 泰州市大川机械配件有限公司 | Aerogenerator bearing self-locking device |
| CN114635933B (en) * | 2022-03-24 | 2023-02-17 | 泰州市大川机械科技有限公司 | Aerogenerator bearing self-locking device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201221440Y (en) | Small-sized wind power generator | |
| CN101701573B (en) | Horizontal shaft magnetic suspension wind driven generator | |
| CN101789664B (en) | Disk wind driven generator | |
| CN101867270A (en) | Special high-voltage three-phase asynchronous motor for compressor | |
| CN201687870U (en) | Double-output shaft magnetic powder clutch | |
| CN104775990A (en) | Maglev wind power generation device | |
| CN114744826A (en) | External rotor generator for range extender | |
| CN102122870A (en) | 5 MW direct-driven permanent magnet wind generator with dual rotors, dual stators and dual air gaps | |
| CN208424081U (en) | 3kW generator with flywheel | |
| CN201937420U (en) | Speed-variable motor of high-speed train | |
| CN206432809U (en) | A kind of stable type threephase asynchronous | |
| CN208806708U (en) | A kind of vehicle motor with inclined weld road | |
| CN201013516Y (en) | Rotor of forced cooling ignition apparatus for motorcycle | |
| CN210927311U (en) | Motor shock mount with supplementary heat dissipation function | |
| CN210686390U (en) | Outer rotor hair-dryer | |
| CN201994732U (en) | Direct-driven generator device with zero starting torque | |
| CN210225171U (en) | Double-port double-group blade radial combined type permanent magnet direct-drive wind driven generator | |
| CN214577529U (en) | Damping device for base of wind driven generator | |
| CN216451251U (en) | Novel brushless motor | |
| CN217554679U (en) | Protection device of fan power generation transmission equipment | |
| CN218897149U (en) | Low-vibration rare earth permanent magnet generator set | |
| CN201523302U (en) | 1-10KW high-efficiency wind-driven generator | |
| CN101431272A (en) | Silicon rectification generator | |
| CN207442720U (en) | Phase asynchronous short braking motor | |
| CN212106374U (en) | Fixing structure of cooling fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Small-sized Wind power generator and its assembly method Effective date of registration: 20111116 Granted publication date: 20090415 Pledgee: Industrial Bank Limited by Share Ltd Guangzhou Dongshan Branch Pledgor: Guangzhou Hongying Technology Co., Ltd. Registration number: 2011990000439 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130315 Granted publication date: 20090415 Pledgee: Industrial Bank Limited by Share Ltd Guangzhou Dongshan Branch Pledgor: Guangzhou Hongying Technology Co., Ltd. Registration number: 2011990000439 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Small-sized Wind power generator and its assembly method Effective date of registration: 20131101 Granted publication date: 20090415 Pledgee: Industrial Bank Limited by Share Ltd Guangzhou Dongshan Branch Pledgor: Guangzhou Hongying Technology Co., Ltd. Registration number: 2013990000814 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGZHOU HY ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUANGZHOU HONGYING TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510460 Guangdong Province, Guangzhou Huadu District Yongfa Road No. 10 Patentee after: GUANGZHOU HY ENERGY TECHNOLOGY CO., LTD. Address before: 510460 Guangdong Province, Guangzhou Huadu District Yongfa Road No. 10 Patentee before: Guangzhou Hongying Technology Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20141203 Granted publication date: 20090415 Pledgee: Industrial Bank Limited by Share Ltd Guangzhou Dongshan Branch Pledgor: Guangzhou Hongying Technology Co., Ltd. Registration number: 2013990000814 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Small-sized Wind power generator and its assembly method Effective date of registration: 20141204 Granted publication date: 20090415 Pledgee: Industrial Bank, Limited by Share Ltd, Guangzhou, Haizhu branch Pledgor: Guangzhou Hongying Technology Co., Ltd. Registration number: 2014990001027 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20171109 Registration number: 2014990001027 Pledgor after: GUANGZHOU HY ENERGY TECHNOLOGY CO., LTD. Pledgor before: Guangzhou Hongying Technology Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171116 Granted publication date: 20090415 Pledgee: Industrial Bank, Limited by Share Ltd, Guangzhou, Haizhu branch Pledgor: GUANGZHOU HY ENERGY TECHNOLOGY CO., LTD. Registration number: 2014990001027 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090415 |