CN210351042U - A cantilever wind power plant - Google Patents
A cantilever wind power plant Download PDFInfo
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- CN210351042U CN210351042U CN201921369739.4U CN201921369739U CN210351042U CN 210351042 U CN210351042 U CN 210351042U CN 201921369739 U CN201921369739 U CN 201921369739U CN 210351042 U CN210351042 U CN 210351042U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
本实用新型提供了新能源开发与利用技术领域内的一种悬臂式风力发电装置，包括固定外罩，固定外罩上可转动地连接有风力转动部分，风力转动部分包括可转动地连接在固定外罩上的转轴，转轴上连接有至少一组激励组件，固定外罩内侧设有压电组件，压电组件包括排布在固定外罩内侧的若干压电悬臂梁，每个压电悬臂梁上粘结有压电片，压电悬臂梁伸向转轴的端部设有永久磁铁一，激励组件包括排布在转轴外侧的若干激励悬臂梁，激励悬臂梁远离转轴的端部设有永久磁铁二，永久磁铁一和永久磁铁二可正对，激励悬臂梁和压电悬臂梁在高度方向上间隔设置；本实用新型加大压电片的形变，提高发电效果。
The utility model provides a cantilever type wind power generation device in the technical field of new energy development and utilization, comprising a fixed outer cover, a wind rotating part is rotatably connected to the fixed outer cover, and the wind rotating part comprises a rotatable connection on the fixed outer cover The rotating shaft is connected with at least one set of excitation components, the inner side of the fixed cover is provided with a piezoelectric component, and the piezoelectric component includes a plurality of piezoelectric cantilever beams arranged on the inner side of the fixed cover, each piezoelectric cantilever beam is bonded with a pressure Electromagnetic piece, the end of the piezoelectric cantilever beam extending to the rotating shaft is provided with a permanent magnet 1, the excitation component includes a number of exciting cantilever beams arranged outside the rotating shaft, the end of the exciting cantilever beam away from the rotating shaft is provided with a permanent magnet 2, a permanent magnet 1 The second can be directly opposite to the permanent magnet, and the excitation cantilever beam and the piezoelectric cantilever beam are arranged at intervals in the height direction; the utility model increases the deformation of the piezoelectric sheet and improves the power generation effect.
Description
Technical Field
The utility model belongs to the technical field of wind power generation, in particular to cantilever type wind power generation set.
Background
Along with the gradual reduction of natural resources, energy sources which do not consume natural resources and can be repeatedly used are continuously researched and developed, particularly, a wind power generation device is gradually enlarged, piezoelectric power generation utilizes the positive piezoelectric effect of piezoelectric ceramics to realize the conversion of mechanical energy into electric energy, the piezoelectric power generation device collects the energy of vibration in the environment through piezoelectric materials and converts the energy into electric energy which can replace a battery to supply power for microelectronic products, and the device has the advantages of simple structure, no need of external power supply, almost unlimited service life, easiness in realizing the miniaturization and integration of a mechanism and the like.
In the prior art, an alternating bending type wind power piezoelectric capacity collector is disclosed, which is published as chinese invention patent No. CN 107994808A, published as 2018.05.04, and comprises a wind power rotating part and a frame part, wherein the frame part comprises a top cover, a support and a base, the top cover and the base are respectively arranged at the top and the bottom of the support, clamps are arranged on the support, a piezoelectric cantilever beam is fixedly connected between two adjacent clamps, the wind power rotating part comprises a rotating shaft rotatably connected to the base, a plurality of piezoelectric bending beams are arranged on the rotating shaft, a first permanent magnet is arranged at the end of the piezoelectric cantilever beam, a second permanent magnet is arranged at the end of the piezoelectric bending beam extending to the piezoelectric cantilever beam, and when the second permanent magnet is intersected with the first permanent magnet, attractive force or repulsive force is generated between the magnets, so that the piezoelectric cantilever beam generates micro displacement forward or backward, the piezoelectric sheet is deformed to generate electric energy, but both ends of the piezoelectric cantilever beam are fixed, the vibration amplitude of the piezoelectric cantilever beam is very small, the generated deformation is very small, and the generated electric energy is less.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model discloses an overcome the weak point among the above-mentioned prior art, provide a cantilever type wind power generation set, solved the not good technical problem of generating effect among the prior art, the utility model discloses increase the deformation of piezoelectric patches, improve the generating effect.
The purpose of the utility model is realized like this: a cantilever type wind power generation device comprises a fixed outer cover, the fixed outer cover is rotatably connected with a wind power rotating part which comprises a rotating shaft rotatably connected with the fixed outer cover, the rotating shaft is connected with at least one group of excitation components, the inner side of the fixed outer cover is provided with a piezoelectric component, the piezoelectric component comprises a plurality of piezoelectric cantilever beams arranged on the inner side of the fixed outer cover, each piezoelectric cantilever beam is bonded with a piezoelectric sheet, the end part of each piezoelectric cantilever beam extending to the rotating shaft is provided with a first permanent magnet, the excitation assembly comprises a plurality of excitation cantilever beams arranged outside the rotating shaft, the end part of the excitation cantilever beam far away from the rotating shaft is provided with a permanent magnet II, the first permanent magnet and the second permanent magnet can be opposite to each other, and the excitation cantilever beam and the piezoelectric cantilever beam are arranged at intervals in the height direction.
In the utility model, the wind power rotating part rotates under the action of wind power, the rotating shaft rotates, the rotating shaft drives the exciting cantilever beam to rotate, when the permanent magnet II is right above the permanent magnet I, attraction or repulsion force is generated between the permanent magnet I and the permanent magnet II, the piezoelectric cantilever beam also receives corresponding attraction or repulsion force, the piezoelectric cantilever beam moves upwards or downwards, and the piezoelectric sheet attached to the piezoelectric cantilever beam deforms to generate electric energy; one end of the piezoelectric cantilever beam in the utility model is fixed, the other end of the piezoelectric cantilever beam is suspended, the piezoelectric cantilever beam generates larger vibration, more electric energy is generated, and the power generation effect is improved; the wind power piezoelectric generator can be applied to the work of wind power piezoelectric generation.
In order to improve the power generation effect, the excitation assemblies are provided with two groups, the piezoelectric assembly is arranged between the two groups of excitation assemblies in the height direction, and the excitation cantilever beams in one group of excitation assemblies and the excitation cantilever beams in the other group of excitation assemblies are arranged in a staggered mode in the circumferential direction.
In order to further improve the power generation effect, in the same group of excitation assemblies, three excitation cantilever beams are arranged and are uniformly arranged outside the rotating shaft, and the phase angle between the excitation cantilever beam in one group of excitation assemblies and the excitation cantilever beam in the other group of excitation assemblies is 60 degrees; this design can prevent that two permanent magnets on two sets of excitation subassemblies from crossing with one permanent magnet simultaneously, avoids magnetic force to offset the condition emergence that the cantilever beam displacement that causes diminishes, and increase piezoelectricity cantilever beam vibration range, piezoelectric patches produce bigger deformation and produce more electric energy, improve the generating efficiency.
As a further improvement of the present invention, the first permanent magnet and the second permanent magnet have opposite polarities.
In order to further make things convenient for the dismouting of piezoelectricity cantilever beam and fixed dustcoat, a plurality of connecting plate has arranged to fixed dustcoat inboard, piezoelectricity cantilever beam closely laminates at the connecting plate downside, and it has the connecting hole to open on the connecting plate, uses fastening screw to pass the connecting hole and links together piezoelectricity cantilever beam and connecting plate, uses two fastening nut to screw respectively at the upside of connecting plate and the downside of piezoelectricity cantilever beam.
In order to further realize the rotation of the rotating shaft under the action of wind power, a rotating sleeve is connected on the rotating shaft above the fixed outer cover, and at least two rotating blades are arranged on the outer side of the rotating sleeve.
As a further improvement of the utility model, the upside of the fixed outer cover is connected with the upper cover, and the rotating shaft is rotationally connected with the upper cover.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a plan view of the present invention with the upper cover hidden.
Fig. 3 is a first three-dimensional structure diagram of the utility model with the upper cover hidden.
Fig. 4 is a second three-dimensional structure view of the utility model with the upper cover hidden.
Fig. 5 is a partial enlarged view of a portion a in fig. 4.
Fig. 6 is a partial enlarged view of the middle piezoelectric plate and the cantilever beam of the present invention.
In the figure: the piezoelectric actuator comprises a fixed outer cover 1, an upper cover 2, a rotating sleeve 3, a rotating blade 4, a rotating shaft 5, a piezoelectric component 6, a piezoelectric cantilever beam 601, a permanent magnet I602, a piezoelectric sheet 603, an excitation component 7, an excitation cantilever beam 701, a permanent magnet II 702, a fastening screw rod 8 and a fastening nut 9.
Detailed Description
As shown in fig. 1 to 6, a cantilever type wind power generation device comprises a fixed outer cover 1 with a containing cavity, a wind power rotating part is rotatably connected on the fixed outer cover 1, an upper cover 2 is connected on the upper side of the fixed outer cover 1, a rotating sleeve 3 is connected on a rotating shaft 5 above the fixed outer cover 1, the wind power rotating part comprises a rotating shaft 5 and rotating blades 4, two rotating blades 4 are arranged on the outer side of the rotating sleeve 3, the upper part of the rotating shaft 5 is rotatably connected on the upper cover 2, the lower part of the rotating shaft 5 is rotatably connected on the fixed outer cover 1, at least one group of excitation components 7 is connected on the rotating shaft 5, a piezoelectric component 6 is arranged on the inner side of the fixed outer cover 1, the piezoelectric component 6 comprises a plurality of piezoelectric cantilevers 601 arranged on the inner side of the fixed outer cover 1, the piezoelectric cantilevers 601 extend towards the direction of the, the end part of the piezoelectric cantilever beam 601 extending to the rotating shaft 5 is provided with a first permanent magnet 602, the excitation assembly 7 comprises a plurality of excitation cantilever beams 701 arranged outside the rotating shaft 5, the end part of the excitation cantilever beam 701 far away from the rotating shaft 5 is provided with a second permanent magnet 702, the first permanent magnet 602 and the second permanent magnet 702 can be opposite, the excitation cantilever beams 701 and the piezoelectric cantilever beams 601 are arranged at intervals in the height direction, and the polarities of the first permanent magnet 602 and the second permanent magnet 702 are opposite; in this embodiment, the inner wall of the fixed outer cover 1 is in a regular dodecaprism shape, and the structure for connecting the piezoelectric cantilever 601 with the fixed outer cover 1 specifically includes that a plurality of connecting plates are arranged inside the fixed outer cover 1, the piezoelectric cantilever 601 is tightly attached to the lower side of the connecting plates, connecting holes are formed in the connecting plates, the piezoelectric cantilever 601 and the connecting plates are connected together by using the fastening screw 8 to penetrate through the connecting holes, and two fastening nuts 9 are screwed on the upper side of the connecting plates and the lower side of the piezoelectric cantilever 601 respectively.
In this embodiment, two sets of excitation assemblies 7 are provided, in the height direction, the piezoelectric assembly 6 is provided between the two sets of excitation assemblies 7, and the excitation cantilever beams 701 in one set of excitation assemblies 7 and the excitation cantilever beams 701 in the other set of excitation assemblies 7 are arranged in a staggered manner in the circumferential direction; in the same group of excitation assemblies 7, three excitation cantilever beams 701 are provided, the three excitation cantilever beams 701 are uniformly arranged outside the rotating shaft 5, and the phase angle between the excitation cantilever beam 701 in one group of excitation assemblies 7 and the excitation cantilever beam 701 in the other group of excitation assemblies 7 is 60 degrees.
In the utility model, the rotating blade 4 rotates under the action of wind force, the rotating blade 4 drives the rotating sleeve 3 to rotate, the rotating sleeve 3 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the two exciting assemblies 7 to rotate, the exciting cantilever beam 701 rotates, in the exciting assembly 7 on the upper surface, when the second permanent magnet is right above the first permanent magnet, an attractive force is generated between the first permanent magnet 602 and the second permanent magnet 702, the piezoelectric cantilever 601 is also subjected to a corresponding attractive force, the piezoelectric cantilever 601 moves upwards, in the lower excitation assembly 7, when the second permanent magnet 702 is positioned right below the first permanent magnet 602, an attractive force is generated between the first permanent magnet 602 and the second permanent magnet 702, the piezoelectric cantilever 601 is subjected to the corresponding attractive force, the piezoelectric cantilever 601 moves downwards, the piezoelectric cantilever 601 generates larger vibration, and the piezoelectric sheet 603 attached to the piezoelectric cantilever 601 generates larger deformation to generate electric energy; one end of the piezoelectric cantilever beam 601 in the utility model is fixed, the other end of the piezoelectric cantilever beam 601 is suspended, the piezoelectric cantilever beam 601 generates larger vibration, the two groups of excitation components 7 and the piezoelectric component 6 interact, the piezoelectric cantilever beam 601 generates larger vibration, the piezoelectric cantilever beam 601 generates larger deformation, the piezoelectric sheet 603 generates more electric energy, and the power generation effect is improved; the piezoelectric cantilever beam 601 is detachably connected in the piezoelectric outer cover, so that the piezoelectric cantilever beam is convenient to disassemble and assemble; the wind power piezoelectric generator can be applied to the work of wind power piezoelectric generation.
The specific embodiment of the present invention is described above, and the fixing outer cover can also be a regular hexagon; it is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (7)
1. The utility model provides a cantilever type wind power generation set, includes fixed dustcoat, rotationally be connected with wind-force rotating part on the fixed dustcoat, wind-force rotating part is including rotationally connecting the pivot on fixed dustcoat, its characterized in that: the utility model discloses a piezoelectric actuator, including pivot, fixed dustcoat, piezoelectric actuator, actuating assembly, piezoelectric actuator, be connected with at least a set of excitation subassembly in the pivot, fixed dustcoat inboard is equipped with piezoelectric assembly, piezoelectric assembly is including arranging a plurality of piezoelectric cantilever beams in fixed dustcoat inboard, and it has the piezoelectric piece to bond on every piezoelectric cantilever beam, and the piezoelectric cantilever beam stretches to the tip of pivot and is equipped with permanent magnet one, the excitation subassembly is including arranging a plurality of excitation cantilever beams in the pivot outside, the tip that the pivot was kept away from to the excitation cantilever beam is equipped with permanent magnet two, permanent magnet one and permanent magnet two can just right, and.
2. The cantilevered wind power plant of claim 1, wherein: the two groups of excitation assemblies are arranged, in the height direction, the piezoelectric assembly is arranged between the two groups of excitation assemblies, and the excitation cantilever beams in one group of excitation assemblies and the excitation cantilever beams in the other group of excitation assemblies are arranged in a staggered mode in the circumferential direction.
3. A cantilevered wind power plant according to claim 2, wherein: in the same group of excitation assemblies, three excitation cantilever beams are uniformly arranged at the outer side of the rotating shaft, and the phase angle between the excitation cantilever beam in one group of excitation assemblies and the excitation cantilever beam in the other group of excitation assemblies is 60 degrees.
4. The cantilevered wind power plant of claim 1, wherein: the polarity of the first permanent magnet is opposite to that of the second permanent magnet.
5. The cantilevered wind power plant of claim 1, wherein: a plurality of connecting plates are arranged on the inner side of the fixed outer cover, the piezoelectric cantilever beams are tightly attached to the lower sides of the connecting plates, connecting holes are formed in the connecting plates, fastening screws penetrate through the connecting holes to connect the piezoelectric cantilever beams with the connecting plates, and two fastening nuts are used for screwing the upper sides of the connecting plates and the lower sides of the piezoelectric cantilever beams respectively.
6. A cantilevered wind power plant according to any of claims 1-5, wherein: the rotating shaft above the fixed outer cover is connected with a rotating sleeve, and at least two rotating blades are arranged on the outer side of the rotating sleeve.
7. A cantilevered wind power plant according to any of claims 1-5, wherein: the upper side of the fixed outer cover is connected with an upper cover, and the rotating shaft is rotatably connected to the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921369739.4U CN210351042U (en) | 2019-08-22 | 2019-08-22 | A cantilever wind power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921369739.4U CN210351042U (en) | 2019-08-22 | 2019-08-22 | A cantilever wind power plant |
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| CN210351042U true CN210351042U (en) | 2020-04-17 |
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| CN201921369739.4U Active CN210351042U (en) | 2019-08-22 | 2019-08-22 | A cantilever wind power plant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332695A (en) * | 2020-09-29 | 2021-02-05 | 长春工业大学 | Rotating shaft type piezoelectric power generation device |
| CN112727662A (en) * | 2020-11-13 | 2021-04-30 | 南京航空航天大学 | Wind-power and hydraulic power generation device based on piezoelectric patches |
| CN113217260A (en) * | 2021-06-18 | 2021-08-06 | 浙大宁波理工学院 | Wave energy power generation device |
| CN116123034A (en) * | 2023-01-03 | 2023-05-16 | 西安热工研究院有限公司 | wind power plant |
-
2019
- 2019-08-22 CN CN201921369739.4U patent/CN210351042U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332695A (en) * | 2020-09-29 | 2021-02-05 | 长春工业大学 | Rotating shaft type piezoelectric power generation device |
| CN112727662A (en) * | 2020-11-13 | 2021-04-30 | 南京航空航天大学 | Wind-power and hydraulic power generation device based on piezoelectric patches |
| CN113217260A (en) * | 2021-06-18 | 2021-08-06 | 浙大宁波理工学院 | Wave energy power generation device |
| CN113217260B (en) * | 2021-06-18 | 2023-02-21 | 浙大宁波理工学院 | A wave energy generating device |
| CN116123034A (en) * | 2023-01-03 | 2023-05-16 | 西安热工研究院有限公司 | wind power plant |
| CN116123034B (en) * | 2023-01-03 | 2024-03-08 | 西安热工研究院有限公司 | Wind power generation device |
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