CN204419457U - A kind of wind generating unit - Google Patents
A kind of wind generating unit Download PDFInfo
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- CN204419457U CN204419457U CN201420815371.0U CN201420815371U CN204419457U CN 204419457 U CN204419457 U CN 204419457U CN 201420815371 U CN201420815371 U CN 201420815371U CN 204419457 U CN204419457 U CN 204419457U
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- support arm
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- 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
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Wind Motors (AREA)
Abstract
The utility model relates to a kind of wind generating unit, especially a kind of wind generating unit based on piezoelectric effect, it comprises pedestal, electricity generating device, electric energy collecting circuit and electrical power storage circuit, described electricity generating device comprises the one or more support arm groups be arranged on pedestal, each support arm group comprises multiple resilient support arms in same level spaced at equal angles around, each support arm is covered with piezo-electric generating sheet, copper product base layer is also provided with between piezo-electric generating sheet and support arm, the area of described piezo-electric generating sheet is less than the area of copper product base layer, described support arm end is provided with float, described electricity generating device is connected with electrical power storage circuit by electric energy collecting circuit.The utility model has that structure is simple, cost is low, wind energy utilization high, can be mechanical vibrational energy by the wind energy transformation in external environment, and produce electric energy, and possess electric energy collecting circuit and electrical power storage circuit, electric charge effectively can be collected and Safety output.
Description
Technical field
The utility model relates to a kind of electricity generating device, is specifically related to a kind of wind generating unit based on piezoelectric effect, belongs to wind-power electricity generation and piezo-electric generating technical field.
Background technique
In recent years; along with socioeconomic high speed development; day by day increase severely to the demand of the energy, environmental pollution and energy shortage become a common difficulty of puzzlement countries in the world, and the environmental deterioration caused therefrom and energy crisis start to affect economic development and people's life gradually.Wind energy is as a kind of clean renewable energy sources, there is the advantages such as clean, cheap, renewable, reserves are large, wind energy is utilized to carry out generating electricity and have huge using value and good development prospect, and its amount of accumulateing is huge, therefore be more and more subject to the attention of countries in the world, increasing people is at research wind-power electricity generation.Wind-power electricity generation successful, China's new energy strategy also starts to be set to emphasis greatly developing wind-power electricity generation.But traditional wind generating unit volume is large, and equipment construction cost is high, needs huge investment.Although also there is the wind-driven generator of some small volumes, conversion efficiency is general all lower, and institute's energy requirement often wind energy is not enough to provide.And most of wind-power electricity generation be unable to do without electromagnetic generator, therefore need a kind of new forms of electricity generation to change current electricity generation situation.
In 1880, Curie brother, when studying the relation of thermoelectric phenomenon and crystal symmetry, found piezoelectric effect on alpha-quartz crystal.When some dielectrics is subject to the effect of external force and is out of shape in a certain direction, its inside can produce polarization phenomena, occurs that the phenomenon of positive and negative contrary electric charge is piezoelectric effect on its two apparent surfaces simultaneously.The demand of supplying continuous power along with people and the continuous enhancing of environmental protection consciousness, utilize the piezo-electric generating technology of new material to become current popular research direction.Piezo-electric generating produces electric energy after utilizing piezoelectric material deforms and realizes generating, and it has, and structure is simple, realization is convenient, low cost and other advantages.Piezoelectric material is a kind of energy-saving environment-friendly materials, and green safety, can not produce poisonous and hazardous residuals, meets the requirement of sustainable development.
Based on this, there is the piezoelectric generating device of various pattern at present, as cantilever beam structure, Cymbal structure, stacked shape structure etc.Make a general survey of the present Research of piezo-electric generating technology, the energy that above-mentioned piezoelectric generating device is collected is mainly derived from the mechanical vibration source of surrounding environment, and also namely designed piezoelectric generating device is mainly oscillatory type piezoelectric generating device.Although oscillatory type piezoelectric generating device efficiency is higher, its effect of a mechanical vibration source competence exertion must be had, and be in particular cases difficult at some the generating capacity finding effective vibration source implement device.Consider wind energy resources abundant in external environment, how the wind energy in external environment being applied to piezoelectric generating device is a direction highly studied.Patent documentation CN201310357008.9 discloses a kind of wind-force driven rotary formula piezo-electric generating technology, although this structure adopts contactless magnetic pumping mode to transform wind energy, but this patent and some other patent electromagnetic force directly act on piezoelectric cantilever end, distance on its overhang tail end permanent magnet body and rotating disk between permanent magnet needs accurate Calculation, otherwise be easy to make piezoelectric constant on piezoelectric cantilever produce embrittlement owing to being out of shape excessive, namely the distortion of piezoelectric cantilever is not easy to control.In addition, owing to being subject to project organization restriction, the expansion of this patent structure is limited.Patent CN202586804 discloses a kind of wind-driven type generator adopting piezo-electric generating sheet, polylith piezo-electric generating sheet is distributed with on an elasticity silver, when elasticity silver swings with the wind, piezo-electric generating sheet generation deformation above and produce electric power, although volume is little, by its structural limitations, add that environmental requirement is to external world high, actual power effect is bad, and also lack energy storage device, the electric current that piezo-electric sheet sends cannot effectively be collected and export simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is for the defect in aforementioned background art and deficiency, a kind of wind generating unit based on piezoelectric effect is provided, have that structure is simple, cost is low, wind energy utilization high, can be mechanical vibrational energy by the wind energy transformation in external environment, and produce electric energy, and possess electric energy collecting circuit and electrical power storage circuit, electric charge effectively can be collected and Safety output.
The technological scheme that the utility model adopts is: a kind of wind generating unit, comprise pedestal, electricity generating device, electric energy collecting circuit and electrical power storage circuit, described electricity generating device comprises the one or more support arm groups be arranged on pedestal, each support arm group comprises multiple resilient support arms in same level spaced at equal angles around, each support arm is covered with piezo-electric generating sheet, copper product base layer is also provided with between piezo-electric generating sheet and support arm, the area of described piezo-electric generating sheet is less than the area of copper product base layer, described support arm end is provided with float, described electricity generating device is connected with electrical power storage circuit by electric energy collecting circuit.
As further improvement of the utility model, described support arm group is 6 groups, and every assembly has 6 support arms, mutually in 60 degree between support arm.
As further improvement of the utility model, on described support arm, axis and the support arm of float is axially vertical, the axis of described float and plane-parallel, the unification of sucker mouth towards around support arm in clockwise or counterclockwise to utilize wind energy better.
As further improvement of the utility model, described piezo-electric generating sheet is half ring-like piezoelectric ceramic.
As further improvement of the utility model, described support arm is provided with annular recess, and described half ring-like piezoelectric ceramic embeds in described annular recess.
As further improvement of the utility model, described half ring-like piezoelectric ceramic has two, is arranged at the axial vertical surface both sides of support arm respectively.
As further improvement of the utility model, described electric energy collecting circuit comprises bus terminal, and the positive terminal of bus terminal connects described piezo-electric generating sheet, and the negative pole end of bus terminal connects described base layer.
As further improvement of the utility model, described electrical power storage circuit comprises the input interface, rectification circuit, protective circuit, booster circuit and the output interface that connect successively, and described input interface is connected with bus terminal.
As further improvement of the utility model, described float shape is sucker shape, effectively can increase the area of contact with wind.
As further improvement of the utility model, described pedestal is frustoconic shape steel, and pedestal skin scribbles anticorrosive coating.
Working procedure of the present utility model and principle: i.e. the piezoelectric effect principle of piezoelectric material, if apply pressure to piezoelectric material, it just can produce potential difference, is referred to as direct piezoelectric effect; Otherwise applying voltage, then produce mechanical stress, is called inverse piezoelectric effect.The utility model make use of the direct piezoelectric effect of piezoelectric material just, support arm is made to produce vibration by wind, thus make piezo-electric generating sheet be out of shape and produce potential difference, and export electrical signal, by electric energy collecting circuit, the electric current that multiple piezo-electric sheet produces is collected, and carry out storing and utilizing through electrical power storage circuit.
Due to the utilization of technique scheme, the utility model has following beneficial effect:
1, Wind Power Utilization combines with piezo-electric generating and achieves wind-power electricity generation by the utility model.
2, the utility model have structure simple, install manufacture easy to maintenance.
3, environmental protection, not by wind, wind direction impact during generating, under wind-force effect, make the piezo-electric generating sheet be covered on support arm produce piezoelectric effect generate electricity, this piezoelectric generating device can generate electricity when gentle breeze disturbance, be conducive to realizing the effective utilization to wind energy, save the cost adopting wind-power electricity generation simultaneously.
4, piezo-electric sheet adopts piezoelectric constant as material, and piezoelectric constant piezoelectricity is higher, and the utility model uses piezoelectric constant greatly can improve the energy collecting effect of device as piezoelectric material.
5, have electric energy collecting circuit and electrical power storage circuit, electric charge effectively can be collected, store and Safety output, wind energy utilization is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, specific embodiments of the present utility model is elaborated:
Fig. 1 is the front view of the wind generating unit based on piezoelectric effect that the utility model provides;
Fig. 2 is the shaft section figure of the support arm of the wind generating unit that the utility model provides;
Fig. 3 is the erection drawing of the support arm of the wind generating unit that the utility model provides
Fig. 4 is the electric energy collecting circuit figure of the wind generating unit that the utility model provides;
Fig. 5 is the electrical power storage circuit diagram of the wind generating unit that the utility model provides;
In figure: 1 is pedestal; 2 is support arm; 3 is piezo-electric generating sheet; 4 is float; 5 is base layer; 6 is annular recess.
Specific embodiments
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection domain of the present utility model is not by the restriction of following public specific embodiment.
Concrete, as shown in Figure 1, be a kind of wind generating unit based on piezoelectric effect that the utility model embodiment provides, comprise pedestal 1, electricity generating device, electric energy collecting circuit and electrical power storage circuit.Wherein, pedestal 1 is made up of frustoconic shape steel, and pedestal skin scribbles anticorrosive coating, to extend the working life of pedestal, electricity generating device comprises the support arm group be arranged on pedestal, present embodiment is provided with 6 groups of support arm groups altogether, each support arm group comprises 6 resilient support arms 2, mutual angle θ between two adjacent support arm 2 is 60 degree, can ensure in any wind direction situation, electricity generating device is in the peak efficiency of generating, each support arm 2 is covered with piezo-electric generating sheet 3, the base layer 5 of copper product is also provided with between piezo-electric generating sheet 3 and support arm 2, piezo-electric generating sheet 3 is as positive terminal outlet, copper product base layer 5 can as negative pole end outlet, the area of piezo-electric generating sheet 3 is less than the area of copper product base layer 5, so not only can be convenient to the welding of wire, can also prevent piezo-electric sheet from damaging to a certain extent, increase the life-span.Support arm 2 end is provided with float 4, and float 4 shape is sucker shape, effectively can increase the area of contact with wind; On support arm 2, axis and the support arm 2 of float 4 is axially vertical, and and plane-parallel, the unification of sucker mouth towards around support arm in clockwise or counterclockwise to utilize wind energy better.Piezo-electric generating sheet 3 selects that limit of elasticity is larger, unleaded environment protection type piezoelectric ceramic, and shape is half ring-like, because piezoelectric ceramic piezoelectricity is high, greatly can improve the energy collecting effect of wind generating unit.As shown in Figure 2,3, support arm 2 is provided with annular recess 6, embeds in annular recess 6, not only make piezoelectric ceramic install more firm, also make piezoelectric ceramic better utilize the extruding force of support arm after half ring-like piezoelectric ceramic attaches substrate.Meanwhile, in order to extend the working life of electricity generating device, piezoelectric ceramic and the naked part be exposed on the external of substrate all scribble etch-proof coating.Half ring-like piezoelectric ceramic on each support arm 2 has two, is arranged at the axial vertical surface both sides of support arm 2 respectively.When wind comes, support arm 2 is while be squeezed, the other end will along with stretching, piezoelectric ceramic also can compressive deformation, utilize direct piezoelectric effect, potential difference is produced after piezoelectric ceramic distortion, and export electric energy by the wire be connected with piezoelectric ceramic and copper product base layer 5 to electric energy collecting circuit, the electric energy exported inputs electrical power storage circuit after being collected by electric energy collecting circuit, as shown in Figure 4, electric energy collecting circuit comprises bus terminal, the positive terminal of bus terminal connects all piezoelectric ceramics by wire, the negative pole end of bus terminal connects all copper product base layeres by wire, be equivalent to the equal parallel connection of each generator unit power to electric energy collecting circuit.
Electrical power storage circuit comprises the input interface, rectification circuit, protective circuit, booster circuit and the output interface that connect successively, and input interface is connected with the bus terminal of electric energy collecting circuit.The electric charge collected is inputed to electrical power storage circuit by electric energy collecting circuit, and by the VDC of its stable output and electric current, by electric transmission line to user side load supply of electrical energy.Electrical power storage circuit as shown in Figure 5; input interface JP1 is connected with the rectification circuit that rectifier bridge D1 forms; the convert alternating current produced by piezo-electric generating sheet 3 is direct current; protective circuit therebetween through being made up of Schottky diode D2, D3; high voltage temporary transient when protective circuit can prevent piezo-electric generating sheet 3 deformation direction contrary damages circuit; electric current is by outputting to output interface JP2 through the booster circuit be made up of SX1308 boost chip U1 and other peripheral circuit after protective circuit, and namely output interface JP2 powers to the load by electric transmission line.
The wind generating unit that technique scheme provides is typically chosen in the abundant area of wind resource and installs, and will consider support arm length (comprising float) when putting, the main interval considered between adjacent support arm.In order to ensure generating efficiency, also should consider air fluid, controlling pedestal spacing, ensure that generating efficiency maximizes.
The foregoing is only the preferred embodiment of this model utility, not in order to limit the utility model, all any simple modification, equivalent variations and remodeling done within spirit of the present utility model and principle, still belongs to the protection domain of technical solutions of the utility model.
Claims (3)
1. a wind generating unit, it is characterized in that: comprise pedestal (1), electricity generating device, electric energy collecting circuit and electrical power storage circuit, described electricity generating device comprises the one or more support arm groups be arranged on pedestal (1), each support arm group comprises multiple resilient support arms in same level spaced at equal angles around (2), each support arm (2) is covered with piezo-electric generating sheet (3), the base layer (5) of copper product is also provided with between piezo-electric generating sheet (3) and support arm (2), described support arm (2) end is provided with float (4), described electricity generating device is connected with electrical power storage circuit by electric energy collecting circuit.
2. a kind of wind generating unit according to claim 1, is characterized in that: described support arm group is 6 groups, and every assembly has 6 support arms (2), mutually in 60 degree between support arm (2).
3. a kind of wind generating unit according to claim 1 and 2, it is characterized in that: the axis of the upper float (4) of described support arm (2) is axially vertical with support arm (2), the axis of described float (4) and plane-parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815371.0U CN204419457U (en) | 2014-12-19 | 2014-12-19 | A kind of wind generating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815371.0U CN204419457U (en) | 2014-12-19 | 2014-12-19 | A kind of wind generating unit |
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| Publication Number | Publication Date |
|---|---|
| CN204419457U true CN204419457U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420815371.0U Expired - Fee Related CN204419457U (en) | 2014-12-19 | 2014-12-19 | A kind of wind generating unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204419457U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578908A (en) * | 2014-12-19 | 2015-04-29 | 西南交通大学 | Wind power generation device |
| CN106357155A (en) * | 2016-09-14 | 2017-01-25 | 长春工业大学 | Stepped porous grid excitation type piezoelectric generator for supplying energy to low-power-consumption devices |
| CN112196730A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Power generation device based on wind energy |
-
2014
- 2014-12-19 CN CN201420815371.0U patent/CN204419457U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578908A (en) * | 2014-12-19 | 2015-04-29 | 西南交通大学 | Wind power generation device |
| CN106357155A (en) * | 2016-09-14 | 2017-01-25 | 长春工业大学 | Stepped porous grid excitation type piezoelectric generator for supplying energy to low-power-consumption devices |
| CN112196730A (en) * | 2020-10-04 | 2021-01-08 | 长春工业大学 | Power generation device based on wind energy |
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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: 20150624 Termination date: 20191219 |