CN202954926U - Breeze piezoelectric device - Google Patents
Breeze piezoelectric device Download PDFInfo
- Publication number
- CN202954926U CN202954926U CN 201220616241 CN201220616241U CN202954926U CN 202954926 U CN202954926 U CN 202954926U CN 201220616241 CN201220616241 CN 201220616241 CN 201220616241 U CN201220616241 U CN 201220616241U CN 202954926 U CN202954926 U CN 202954926U
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- CN
- China
- Prior art keywords
- shell body
- supporting frame
- piezoelectric plate
- generating
- housing
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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.)
- Expired - Fee Related
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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
Abstract
The utility model discloses a breeze piezoelectric device. The breeze piezoelectric device comprises a shell body, an air collecting channel, generating bodies, a supporting frame, a piezoelectric plate and an energy accumulator. One end of the shell body is an air inlet, and the other end of the shell body is an air outlet. The air collecting channel is of a horn structure, and a small port of the air collecting channel is connected with the air inlet of the shell body. Each generating body is a triangular prism, one face of the triangular prism is an incident flow face, and the other two faces are indent cambered faces. A plurality of the generating bodies are arranged inside the shell body and close to the air inlet, and the incident flow face corresponds to the air inlet direction. The supporting frame is installed inside the shell body, one end of the piezoelectric plate is fixed on the supporting frame, and the other end of the piezoelectric plate is a free end close to the generating bodies. Metal electrodes of the upper face and the lower face of the piezoelectric plate are connected with the energy accumulator. Breeze enters the shell body through the air collecting channel. Under certain conditions, periodic trapped vortex streets having stable shedding frequency are formed in back flow fields of the generating bodies, the vortex streets act on the piezoelectric plate in the flow fields to generate periodic fluid exciting force to enable the piezoelectric plate to vibrate, and vibration of the piezoelectric plate can be transformed into electric energy.
Description
Technical field
The utility model relates to a kind of device that utilizes gentle breeze to generate electricity, and relates in particular to a kind of energy and collect and utilize the gentle breeze that produces in productive life, and make it the gentle breeze piezoelectric device of generating electric energy.
Background technique
At present, common generation mode has thermal power generation, hydroelectric power, nuclear energy power generation and wind-power electricity generation.Thermal power generation needs a large amount of mineral resources and environmental pollution serious, and waterpower and wind-power electricity generation need certain geographical conditions, and the nuclear energy power generation technical requirements is high and can produce nuclear radiation.
The model utility content
For deficiency of the prior art, the purpose of this utility model has been to provide a kind of gentle breeze piezoelectric device that affected by geographical conditions that overcomes.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme:
The gentle breeze piezoelectric device comprises housing, collects air channel, artificial body for generating, supporting frame, piezo-electric sheet and accumulator;
Described housing is tubular structure, and an end of the housing of tubular structure is intake grill, and the other end is exhaust outlet;
The described air channel that integrates is as horn strucutre, and the portlet in the collection air channel of horn strucutre is connected with the intake grill 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 described housing and near intake grill, a plurality of artificial body for generatings are set, the fluoran stream surface of sounding body is corresponding with the air intake direction; Supporting frame is arranged in housing, and at least one piezo-electric sheet is set on supporting frame, and an end of described piezo-electric sheet is fixed on supporting 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 piezo-electric sheet has metal film, and described metal film is connected with accumulator.
Compared with prior art, gentle breeze piezoelectric device of the present utility model has following advantage:
1, gentle breeze enters in housing by collecting the air channel, streamed artificial body for generating, under certain condition, after artificial body for generating, the flow field can form periodically, have the stable lift-off vortex street of providing frequency, these vortex streets act on the piezo-electric sheet in the flow field, produce periodic fluid excitation force and make the piezo-electric sheet vibration, the piezo-electric sheet vibrational energy directly is converted to electric energy.Therefore, this gentle breeze piezoelectric device can effectively utilize the gentle breeze in environment, produces electric energy when making it pass through this device.
2, this gentle breeze piezoelectric device utilizes breeze wind, and motive force is sufficient, and plant bulk is little, and is simple in structure, applied range.
3, wind energy is directly electric energy by the vibrational energy formal transformation, there is no 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 piezoelectric device;
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;
In accompanying drawing: the 1-housing; 2-collection air channel; The 3-artificial body for generating; The 4-supporting frame; The 5-piezo-electric sheet; 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 utility model is described in further detail.
As shown in Fig. 1～4, the gentle breeze piezoelectric device comprises housing 1, collects air channel 2, artificial body for generating 3, supporting frame 4, piezo-electric sheet 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 intake grill, and the other end of housing 1 is exhaust outlet.Integrate air channel 2 as horn strucutre (as shown in Figure 2), the portlet in the collection air channel 2 of horn strucutre is connected with the intake grill 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 housing 1 and near intake grill.Supporting frame 4 is arranged in housing 1, and at least one piezo-electric sheet 5 is set on supporting frame 4, and an end of piezo-electric sheet 5 is fixed on supporting frame 4, and the other end of piezo-electric sheet 5 is the inner concave arc surface of free end and close artificial body for generating 3.The upper and lower surface of piezo-electric sheet 5 has metal film, and metal film 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 arranged on outside housing 1 with accumulator 7, and interior mobile at housing 1 to avoid hindering wind, the collection wind angle that collects air channel 2 is 54 °～60 °.In the present embodiment, piezo-electric sheet is selected the PVDF stupalith, though its piezoelectric property not as good as the PZT stupalith, its rigidity a little less than, easily blown; Piezo-electric sheet adopts " sandwich " structure, adopt the length and width height be the transparent sheet of 11cm * 8cm * 0.02cm as the mesosphere, both sides are the PVDF piezoelectric thin film layer.
Gentle breeze enters in housing 1 by collecting air channel 2, streamed artificial body for generating 3, under certain condition, artificial body for generating 3 rear flow field can form periodically, have the stable lift-off vortex street of providing frequency, these vortex streets act on the piezo-electric sheet in the flow field, produce periodic fluid excitation force, the fluid excitation force makes the piezo-electric sheet 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 electric consumer by device for converting electric energy 6, makes its operation.
Claims (1)
1. the gentle breeze piezoelectric device, is characterized in that: comprise housing (1), collect air channel (2), artificial body for generating (3), supporting frame (4), piezo-electric sheet (5) and accumulator (7);
Described housing (1) is tubular structure, and an end of the housing of tubular structure (1) is intake grill, and the other end is exhaust outlet;
The described air channel (2) that integrates is as horn strucutre, and the portlet in the collection air channel (2) of horn strucutre is connected with the intake grill 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 described housing (1) and near intake grill, 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; Supporting frame (4) is arranged in housing (1), at least one piezo-electric sheet (5) is set on supporting frame (4), one end of described piezo-electric sheet (5) is fixed on supporting 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 piezo-electric sheet (5) has metal film, and described metal film is connected with accumulator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616241 CN202954926U (en) | 2012-11-04 | 2012-11-04 | Breeze piezoelectric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220616241 CN202954926U (en) | 2012-11-04 | 2012-11-04 | Breeze piezoelectric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202954926U true CN202954926U (en) | 2013-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220616241 Expired - Fee Related CN202954926U (en) | 2012-11-04 | 2012-11-04 | Breeze piezoelectric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202954926U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868785A (en) * | 2015-04-30 | 2015-08-26 | 沈阳化工大学 | Cylindrical vortex-induced vibration generation device with built-in piezoelectric beam |
| CN106018724A (en) * | 2016-06-15 | 2016-10-12 | 浙江师范大学 | River monitoring device based on piezoelectric stacks |
| CN106286139A (en) * | 2016-08-08 | 2017-01-04 | 上海大学 | A kind of concentrated wind energy piezoelectric energy collecting device |
| KR101931438B1 (en) | 2017-07-14 | 2018-12-20 | 최영재 | Wind power generating apparatus using piezoelectric effect |
-
2012
- 2012-11-04 CN CN 201220616241 patent/CN202954926U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868785A (en) * | 2015-04-30 | 2015-08-26 | 沈阳化工大学 | Cylindrical vortex-induced vibration generation device with built-in piezoelectric beam |
| CN106018724A (en) * | 2016-06-15 | 2016-10-12 | 浙江师范大学 | River monitoring device based on piezoelectric stacks |
| CN106018724B (en) * | 2016-06-15 | 2018-03-09 | 浙江师范大学 | A kind of river monitoring device based on piezoelectric stack |
| CN106286139A (en) * | 2016-08-08 | 2017-01-04 | 上海大学 | A kind of concentrated wind energy piezoelectric energy collecting device |
| CN106286139B (en) * | 2016-08-08 | 2019-10-11 | 上海大学 | A kind of concentrated wind energy piezoelectric energy collecting device |
| KR101931438B1 (en) | 2017-07-14 | 2018-12-20 | 최영재 | Wind power generating apparatus using piezoelectric effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131104 |