CN102957340A - Breeze generator - Google Patents
Breeze generator Download PDFInfo
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- CN102957340A CN102957340A CN 201210456720 CN201210456720A CN102957340A CN 102957340 A CN102957340 A CN 102957340A CN 201210456720 CN201210456720 CN 201210456720 CN 201210456720 A CN201210456720 A CN 201210456720A CN 102957340 A CN102957340 A CN 102957340A
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- shell
- housing
- piezoelectric sheet
- air inlet
- generating
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Abstract
The invention discloses a breeze generator, which comprises a shell, a wind collection duct, generating bodies, a supporting frame, a piezoelectric sheet and an energy storage device, wherein one end of the shell is an air inlet and the other end of the shell is an air outlet; the wind collection duct is of a horn structure; a small port of the wind collection duct is connected with the air inlet of the shell; each generating body is a triangular prism; one face of the triangular prism is an incident flow face, and the other two faces of the triangular prism are inward concave cambered faces; a plurality of generating bodies are arranged in the shell and close to the air inlet; the incident flow face corresponds to the air inlet direction; the supporting frame is arranged in the shell; one end of the piezoelectric sheet is fixedly arranged on the supporting frame, and the other end of the piezoelectric sheet is a free end and close to the generating bodies; and metal electrodes of the upper and lower surfaces of the piezoelectric sheet are connected with the energy storage device. Breeze enters the shell through the wind collection duct; under a certain condition, a rear flow field of the generating bodies forms periodic detached vortex streets with stable shedding frequency; the vortex streets act on the piezoelectric sheet in the flow field to produce periodic fluid exciting force so as to vibrate the piezoelectric sheet; and the vibration of the piezoelectric sheet can be directly converted into electric energy.
Description
Technical field
The present invention relates to a kind of device that utilizes gentle breeze to generate electricity, relate in particular to a kind of energy collection and utilize the gentle breeze that produces in the productive life, and make it the gentle breeze-driven generator of generating electric energy.
Background technology
At present, common generation mode has thermal power generation, hydroelectric power generation, nuclear energy power generation and wind power generation.Thermal power generation needs a large amount of mineral resources and environmental pollution serious, and waterpower and wind power generation need certain geographical conditions, and the nuclear energy power generation specification requirement is high and can produce nuclear radiation.
Summary of the invention
For weak point of the prior art, the object of the present invention is to provide a kind of gentle breeze-driven generator that affected by geographical conditions that overcomes.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
Gentle breeze-driven generator comprises housing, collection air channel, artificial body for generating, bracing frame, piezoelectric patches and accumulator;
Described housing is tubular structure, and an end of the housing of tubular structure is air inlet, and the other end is air outlet;
The described air channel that integrates is as horn structure, and the portlet in the collection air channel of horn structure is connected with the air inlet of housing;
Described artificial body for generating is triangular prism, and trequetrous one side is the plane, and this plane is fluoran stream surface; Trequetrous other two sides is inner concave arc surface;
In the described housing and near air inlet a plurality of artificial body for generatings are set, the fluoran stream surface of sounding body is corresponding with the air intake direction; Bracing frame is installed in the housing, and at least one piezoelectric patches is set on the bracing frame, and an end of described piezoelectric patches is fixed on the bracing frame, and the other end is the inner concave arc surface of free end and close artificial body for generating;
The upper and lower surface of described piezoelectric patches has metal electrode, and described metal electrode is connected with accumulator;
Described metal electrode is connected with device for converting electric energy by wire, and device for converting electric energy is connected with accumulator by wire;
Described device for converting electric energy and accumulator are installed in outside the housing;
The collection wind angle in described collection air channel is 54 °～60 °.
Compared with prior art, gentle breeze-driven generator of the present invention has following advantage:
1, gentle breeze enters in the housing by the collection air channel, streamed artificial body for generating, under certain condition, the flow field can form periodically, have the stable lift-off vortex street of providing frequency behind the artificial body for generating, these vortex streets act on the piezoelectric patches in the flow field, produce periodic fluid exciting force and make the piezoelectric patches vibration, the piezoelectric patches vibrational energy directly is converted to electric energy.Therefore, this gentle breeze-driven generator can effectively utilize the gentle breeze in the environment, produces electric energy when making it pass through this device.
2, this gentle breeze-driven generator utilizes breeze wind, and motive power is sufficient, and plant bulk is little, and is simple in structure, applied range.
3, wind energy is electric energy by the vibrational energy formal transformation directly, does not have the friction energy-dissipating of traditional wind-drive device, and efficient is high; Simultaneously also overcome the more and more serious energy and environmental crisis, wind resource is inexhaustible, and environmentally safe, overcomes the defective that affected by geographical conditions.
Description of drawings
Fig. 1 is the structural representation of gentle breeze-driven generator;
Fig. 2 is the structural representation in collection air channel;
Fig. 3 is the structural representation of artificial body for generating;
Fig. 4 is the cross-sectional view of artificial body for generating;
Fig. 5 is the curve chart of collection wind angle and maximum wind velocity.
In the accompanying drawing: the 1-housing; 2-collection air channel; The 3-artificial body for generating; The 4-bracing frame; The 5-piezoelectric patches; The 6-device for converting electric energy; The 7-accumulator; The 8-plane; The 9-inner concave arc surface.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Shown in Fig. 1～4, gentle breeze-driven generator comprises housing 1, collection air channel 2, artificial body for generating 3, bracing frame 4, piezoelectric patches 5, device for converting electric energy 6 and accumulator 7.Housing 1 is tubular structure, and an end of the housing 1 of tubular structure is air inlet, and the other end of housing 1 is air outlet.Integrate air channel 2 as horn structure (as shown in Figure 2), the portlet in the collection air channel 2 of horn structure is connected with the air inlet of housing 1.Artificial body for generating 3 is triangular prism (as shown in Figure 3 and Figure 4), and trequetrous one side is plane 8, and this plane 8 is fluoran stream surface; Trequetrous other two sides is that 9, two inner concave arc surfaces of inner concave arc surface 9 are non-fluoran stream surface, and this artificial body for generating 3 adopts engineering plastics or metal to make.A plurality of artificial body for generatings 3 are set, the fluoran stream surface of sounding body 3 corresponding with the air intake direction (quantity of artificial body for generating 3 can be determined according to actual needs) in the housing 1 and near air inlet.Bracing frame 4 is installed in the housing 1, and at least one piezoelectric patches 5 is set on the bracing frame 4, and an end of piezoelectric patches 5 is fixed on the bracing frame 4, and the other end of piezoelectric patches 5 is the inner concave arc surface of free end and close artificial body for generating 3.The upper and lower surface of piezoelectric patches 5 has metal electrode, and metal electrode is connected with device for converting electric energy 6 by wire, and device for converting electric energy 6 is connected with accumulator 7 by wire.
In the present embodiment, device for converting electric energy 6 is installed in outside the housing 1 with accumulator 7, to avoid hindering wind housing 1 interior flowing.The collection wind angle in collection air channel 2 is 54 °～60 °, selects tapering type mode to reach in each angle collection wind efficient as shown in Figure 5.In the present embodiment, piezoelectric patches is selected the PVDF ceramic material, though its piezoelectric property not as good as the PZT ceramic material, its rigidity a little less than, easily blown; Piezoelectric patches adopts " sandwich " structure, adopt the length and width height be the transparent sheet of 11cm * 8cm * 0.02cm as the intermediate layer, both sides are the PVDF piezoelectric thin film layer.
Gentle breeze enters in the housing 1 by collection air channel 2, streamed artificial body for generating 3, under certain condition, artificial body for generating 3 rear flow fields can form periodically, have the stable lift-off vortex street of providing frequency, these vortex streets act on the piezoelectric patches in the flow field, produce periodic fluid exciting force, the fluid exciting force makes the piezoelectric patches vibration that is arranged in the flow field, utilizes piezoelectric effect, vibrational energy directly is converted to electric energy, the electric energy that produces is connected to accumulator 7 or electrical appliance by device for converting electric energy 6, makes its operation.
Claims (1)
1. gentle breeze-driven generator is characterized in that: comprise housing (1), collection air channel (2), artificial body for generating (3), bracing frame (4), piezoelectric patches (5) and accumulator (7);
Described housing (1) is tubular structure, and an end of the housing of tubular structure (1) is air inlet, and the other end is air outlet;
The described air channel (2) that integrates is as horn structure, and the portlet in the collection air channel (2) of horn structure is connected with the air inlet of housing (1);
Described artificial body for generating (3) is triangular prism, and trequetrous one side is plane (8), and this plane (8) are fluoran stream surface; Trequetrous other two sides is inner concave arc surface (9);
In the described housing (1) and near air inlet a plurality of artificial body for generatings (3) are set, the fluoran stream surface of sounding body (3) is corresponding with the air intake direction; Bracing frame (4) is installed in the housing (1), at least one piezoelectric patches (5) is set on the bracing frame (4), one end of described piezoelectric patches (5) is fixed on the bracing frame (4), and the other end is the inner concave arc surface of free end and close artificial body for generating (3);
The upper and lower surface of described piezoelectric patches (5) has metal electrode, and described metal electrode is connected with accumulator (7);
Described metal electrode is connected with device for converting electric energy (6) by wire, and device for converting electric energy (6) is connected with accumulator (7) by wire;
Described device for converting electric energy (6) is installed in outside the housing (1) with accumulator (7);
The collection wind angle in described collection air channel (2) is 54 °～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210456720 CN102957340A (en) | 2012-11-04 | 2012-11-04 | Breeze generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210456720 CN102957340A (en) | 2012-11-04 | 2012-11-04 | Breeze generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102957340A true CN102957340A (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210456720 Pending CN102957340A (en) | 2012-11-04 | 2012-11-04 | Breeze generator |
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| CN (1) | CN102957340A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391345A (en) * | 2015-12-30 | 2016-03-09 | 南京理工大学 | Fluid power sound source excitation method of piezoelectric generator |
| CN105471319A (en) * | 2015-12-30 | 2016-04-06 | 南京理工大学 | Airflow-induced acoustic piezoelectric power generation forced vibration device |
| CN106523247A (en) * | 2016-11-23 | 2017-03-22 | 青岛理工大学 | Surge induced vibration energy recycling device |
| CN107201989A (en) * | 2017-07-28 | 2017-09-26 | 上海应用技术大学 | A kind of hot-short wind power generation plant |
| CN108696183A (en) * | 2017-04-12 | 2018-10-23 | 北京工业大学 | A kind of broadband vortex-induced vibration piezoelectric energy collector being installed on high-speed railway |
-
2012
- 2012-11-04 CN CN 201210456720 patent/CN102957340A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391345A (en) * | 2015-12-30 | 2016-03-09 | 南京理工大学 | Fluid power sound source excitation method of piezoelectric generator |
| CN105471319A (en) * | 2015-12-30 | 2016-04-06 | 南京理工大学 | Airflow-induced acoustic piezoelectric power generation forced vibration device |
| CN105471319B (en) * | 2015-12-30 | 2017-06-16 | 南京理工大学 | A kind of air-flow cause sound piezo-electric generating forced vibration device |
| CN105391345B (en) * | 2015-12-30 | 2017-06-16 | 南京理工大学 | A kind of piezoelectric generator fluid dynamic sound source excitation method |
| CN106523247A (en) * | 2016-11-23 | 2017-03-22 | 青岛理工大学 | Surge induced vibration energy recycling device |
| CN108696183A (en) * | 2017-04-12 | 2018-10-23 | 北京工业大学 | A kind of broadband vortex-induced vibration piezoelectric energy collector being installed on high-speed railway |
| CN107201989A (en) * | 2017-07-28 | 2017-09-26 | 上海应用技术大学 | A kind of hot-short wind power generation plant |
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Application publication date: 20130306 |