CN206850688U - A kind of piezoelectricity wind power generation plant - Google Patents
A kind of piezoelectricity wind power generation plant Download PDFInfo
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- CN206850688U CN206850688U CN201720613816.0U CN201720613816U CN206850688U CN 206850688 U CN206850688 U CN 206850688U CN 201720613816 U CN201720613816 U CN 201720613816U CN 206850688 U CN206850688 U CN 206850688U
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- vortex street
- karman vortex
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Abstract
The utility model provides a kind of piezoelectricity wind power generation plant, and the piezoelectricity wind power generation plant includes：Support column, the Karman vortex street band of column for being sleeved on support column and being fixedly connected with support column, divide and be listed in Karman vortex street band of column both sides and the piezoelectric ceramic piece being fixedly connected with support column；And electric energy acquisition circuit and energy-storage travelling wave tube；Karman vortex street band of column side is arcwall face, fluid produces vortex in Karman vortex street band of column both sides after bypassing arcwall face and forms vortex street, the active force for producing the fluid after vortex street is applied on piezoelectric ceramic piece, and piezoelectric ceramic piece, which produces, vibrates and convert vibrational energy into electric energy.In the above-described embodiments, the Karman vortex street band of column is annular, therefore, toll bar vortex can be produced when flowing through the Karman vortex street band of column by blowing over the wind come from all quarter, caused vortex produces electric energy, and use two points of piezoelectric ceramic pieces for being listed in Karman vortex street band of column both sides when being applied to piezoelectric ceramic piece, caused vortex can be made full use of, improves the efficiency of generating.
Description
Technical field
It the utility model is related to field of new energy technologies, more particularly to a kind of piezoelectricity wind power generation plant.
Background technology
With the development of technology of Internet of things, every object of the mankind can interconnect.By being calculated with small intelligent
Equipment is closely coupled, and wireless senser is embedded into object used in everyday, can be identified and be rung in a manner of personalized
Answer any behavior.And with the development of wireless communication technique, the technology that relevant information is obtained using wireless sensor network is obtained
Global extensive concern.
The scheme for wireless senser energy supply is commonly traditional battery powered at present, is that cost is higher the shortcomings that the program
And periodic replacement is needed, and be not that can be carried out changing in any environment.Because it is widely present in nature each
Kind environmental energy, including solar energy, wind energy, mechanical vibrational energy, heat energy, ocean energy, biochemical energy etc., utilize various new intelligence
Transductive material and structure can be converted into above-mentioned electric energy and carry out storage using becoming a kind of new solution.
For outdoor environment, wind-force is ubiquitous, and wind-force has become as one of generating new energy at present
One of Exploitation degree highest, renewable sources of energy with fastest developing speed in the world today.For power industry, wind generator set
Need very greatly, since it is desired that providing very big electric power.For some wireless sensers, it is necessary to electricity in milliwatt, one
The small wind energy power technology of a little small-scale structures, it is possible to supply energy for wireless senser enough, can so make wirelessly to pass
Sensor continuous firing.Such as soil environment monitoring sensor in external environment out of office, petroleum pipeline leakage monitoring sensor, gas phase
Monitoring sensor etc., it is suitable for generating electricity using wind-force.
Although it has been seen in that the potentiality of existing technology application, the technology are limited to the condition of environment.On the one hand
Wind-force source is unstable, once extraneous factor causes vibration to reduce, the energy for making to be collected into is reduced, therefore, it is difficult to stable supplying
Sensor uses.On the other hand traditional flabellum form there are certain requirements for the directionality of wind-force, and efficiency is general.
Utility model content
The utility model provides a kind of piezoelectricity wind power generation plant, to improve the generating of piezoelectricity wind power generation plant effect
Rate.
The utility model provides a kind of piezoelectricity wind power generation plant, and the piezoelectricity wind power generation plant includes：Support column, set
The Karman vortex street band of column being fixedly connected mounted in the support column and with the support column, divide and be listed in the Karman vortex street band of column both sides
And the piezoelectric ceramic piece being fixedly connected with the support column；And electric energy acquisition circuit and energy-storage travelling wave tube, wherein, the karman vortex
Street pole ring side is arcwall face, and fluid produces vortex in the Karman vortex street band of column both sides after bypassing the arcwall face and forms whirlpool
Street, the active force for producing the fluid after vortex street are applied on the piezoelectric ceramic piece, and the piezoelectric ceramic piece produces vibration and will
Vibrational energy is converted into electric energy, and the electric energy acquisition circuit gathers electric energy caused by the piezoelectric ceramic piece, the energy-storage travelling wave tube
Store the electric energy of the electric energy acquisition circuit collection.
In the above-described embodiments, the Karman vortex street band of column is annular, therefore, blows over the wind come from all quarter and is flowing through
Toll bar vortex can be produced during the Karman vortex street band of column, caused vortex produces electric energy, and adopt when being applied to piezoelectric ceramic piece
With two points of piezoelectric ceramic pieces for being listed in Karman vortex street band of column both sides, caused vortex can be made full use of, improves generating
Efficiency.
In a specific embodiment, the piezoelectric ceramic piece is circular piezoelectric potsherd, the karman vortex street pole
The diameter of ring is not less than the diameter of the circular piezoelectric potsherd.So as to improve the efficiency of generating.
In a specific embodiment, two circular piezoelectric potsherds are symmetricly set on the Karman vortex street band of column
Both sides.Improve the efficiency of generating.
In a specific embodiment, vertical range of each circular piezoelectric potsherd to the Karman vortex street band of column
Between 1~10cm.Improve the efficiency of generating.
In a specific embodiment, the Karman vortex street band of column includes the first ring body and is sleeved on described first
The second ring body in ring body, and be fixedly connected between first ring body and second ring body by support bar；Wherein, it is described
The cross section of first ring body is sleeved on the support column for circular or ellipse, second ring body.
In a specific embodiment, in addition to it is fixed on every one end of the support column and is used to support the circle
The supporting plate of shape piezoelectric ceramic piece.Improve the stability of circular piezoelectric potsherd.
In a specific embodiment, the number for the supporting plate that the support column is set per one end is two, and institute
State two supporting plates point and be listed in the both sides of the circular piezoelectric potsherd, and pass through respectively between the circular piezoelectric potsherd
Epoxy resin glue bond..Improve the stability of circular piezoelectric potsherd.
In a specific embodiment, the diameter of the Karman vortex street band of column is more than the circular piezoelectric potsherd
Diameter.Improve generating efficiency.
In a specific embodiment, the support column is karman vortex street pole.Improve generating efficiency.
In a specific embodiment, the support column is engraved structure.Improve generating efficiency.
Brief description of the drawings
Fig. 1 is the side view for the piezoelectricity wind power generation plant that the utility model embodiment provides；
Fig. 2 is the schematic diagram for the piezoelectricity wind power generation plant that the utility model embodiment provides；
Fig. 3 is the structural representation for another piezoelectricity wind power generation plant that the utility model embodiment provides；
Fig. 4 is the structural representation of the Karman vortex street band of column for the piezoelectricity wind power generation plant that the utility model embodiment provides
Figure；
Fig. 5 is the sectional view that the utility model embodiment provides.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing to this practicality
It is new to be described in further detail, it is clear that described embodiment is only the utility model part of the embodiment, rather than
Whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work
Under the premise of all other embodiment for being obtained, belong to the scope of the utility model protection.
As shown in figure 1, Fig. 1 shows a kind of side view for piezoelectricity wind power generation plant that the utility model embodiment provides
Figure.The piezoelectricity wind power generation plant 10 that structure as shown in Figure 1 can be seen that the present embodiment offer includes support column 11, toll bar
14, two piezoelectric ceramic pieces 12 of the vortex street band of column and electric energy acquisition circuit 20 and energy-storage travelling wave tube 30, wherein, the Karman vortex street band of column 14
It is sleeved on support column 11 and is fixedly connected with support column 11, two piezoelectric ceramic pieces 12, which are divided to, is listed in the two of the Karman vortex street band of column 14
Side is simultaneously fixedly connected with support column 11, as shown in figure 1, two piezoelectric ceramic pieces 12 are located at the both ends of support column 11, Karman vortex street
The band of column 14 is located between two piezoelectric ceramic pieces 12, and in structure shown in Fig. 1, piezoelectric ceramic piece 12, karman vortex street pole
It is parallel to each other between ring 14.In specific set, as shown in figure 5, the side of the Karman vortex street band of column 14 is arcwall face, fluid bypasses arc
Produced behind shape face in the both sides of the Karman vortex street band of column 14 and be vortexed and formed vortex street, the active force for producing the fluid after vortex street is applied to pressure
On electroceramics piece 12, piezoelectric ceramic piece 12, which produces, vibrates and converts vibrational energy into electric energy, the collection pressure of electric energy acquisition circuit 20
Electric energy caused by electroceramics piece 12, energy-storage travelling wave tube 30 store the electric energy of the collection of electric energy acquisition circuit 20.
From Karman vortex street principle, when fluid incoming bypasses some objects, object both sides periodically can come off
Direction of rotation is opposite and is arranged in well-regulated biserial line vortex.During beginning, before this two alignments whirlpool keeps the motion of itself respectively
Enter, then they are interfered with each other, and are attracted each other, and disturb increasing, the nonlinear so-called vortex street of formation.Karman vortex street is
A kind of phenomenon that viscous incompressible fluid dynamics is studied.When there is vortex street, the object of fluid convection warp can produce one
Periodic alternation active force.In the present embodiment, the structure that the Karman vortex street band of column 14 is formed bypasses the Karman vortex street for fluid
Vortex is produced after the circular arc external side of the band of column 14, and forms vortex street, the active force for producing the fluid after vortex street is applied to pressure
On electroceramics piece 12 so that piezoelectric ceramic piece 12 produces vibration, and piezoelectric ceramic piece 12 can convert vibrational energy into electric energy, from
And realize the purpose to generate electricity.
As shown in Fig. 2 in the present embodiment, the object for producing vortex street is the Karman vortex street band of column 14, the Karman vortex street
The band of column 14 is made using resin material and formed, and as shown in Figures 4 and 5, the side of the Karman vortex street band of column 14 is arc to its structure
Face, the i.e. outer surface of the Karman vortex street band of column 14 are arcwall face, specifically, the cross section of the Karman vortex street band of column 14 can be circle
Shape, ellipse or other can be formed side be arc-shaped transition face.In specific set, the Karman vortex street band of column 14 includes
First ring body 141 and the second ring body 142 being sleeved in the first ring body 141, and the first ring body 141 and the second ring body 142 it
Between be fixedly connected by support bar 143；Wherein, the cross section of the first ring body 141 can be circular or oval, the second ring body
142 are sleeved on support column 11.With reference first to Fig. 3, the agent structure of the Karman vortex street band of column 14 is two ring bodies, respectively
One ring body 141 and the second ring body 142, wherein, the cross section of the first ring body 141 is circle, and first ring body 141 is used to produce whirlpool
Rotation, the second ring body 142 are sleeved in the first ring body 141, and second ring body 142 is used to be connected with support column 11, realizes karman vortex
Being fixedly connected between street pole ring 14 and support column 11, and pass through multiple supports between the first ring body 141 and the second ring body 142
Bar 143 connects, as shown in figure 3, Fig. 3 is shown by the way of four support bars 143 connect.It can also use other different
The connected mode of support bar 143, only need to ensure stable support between the two.
In the present embodiment, the Karman vortex street band of column 14 is more specifically the first ring body 141 because cross section is using circle
Side is circle, and therefore, no matter the wind that horizontal direction is blown over is in any direction (for orientation, such as east wind, south wind, west wind, north
Wind etc.), obtaining part windward can be equivalent into a cylindrical structural, and the structure can reach the effect for producing vortex street, such as Fig. 2
It is shown, the wind of horizontal direction is represented with the straight line with the arrow of horizontal direction, after the Karman vortex street band of column 14 is flowed through, produced upward
The vortex spread downwards, so that the TRT 10 provided in the present embodiment can utilize 360 ° in horizontal direction of wind
Generated electricity, so as to improve the utilization rate of wind energy, and then improve the efficiency of generating.
After the position of generation vortex street flows through the Karman vortex street band of column 14 for fluid it can be seen from foregoing description, therefore, in order to
Ensure that fluid can blow to piezoelectric ceramic piece 12, when setting, piezoelectric ceramic piece 12 is circular piezoelectric potsherd 12, also, this
Embodiment is set by the way of diameter of the diameter of the Karman vortex street band of column 14 not less than the circular piezoelectric potsherd 12, so as to
Ensure that the fluid after generation vortex street can be applied to piezoelectric ceramic piece 12.In the lump with reference to figure 1 and Fig. 3, wherein, d is piezoelectric ceramics
The diameter of piece 12, D are the diameter of the Karman vortex street band of column 14, and with reference first to Fig. 1, Fig. 1 shows diameter d of piezoelectric ceramic piece 12 etc.
In the schematic diagram of the TRT of the Karman vortex street band of column 14, Fig. 3 shows that the diameter D of the Karman vortex street band of column 14 makes pottery more than piezoelectricity
The schematic diagram of the diameter d of ceramics 12 TRT, understood with reference to Fig. 2, after vortex is produced, as vortex is apart from Karman vortex street
The distance of the band of column 14 is more remote, and the diffusion being vortexed in vertical direction is bigger, therefore, as a preferable scheme, using karman vortex
The diameter D of street pole ring 14 is more than the diameter d of piezoelectric ceramic piece 12, so as to ensure that fluid can be applied to piezoelectric ceramic piece 12,
Improve generating efficiency.In addition, in order to improve the efficiency of generating, two circular piezoelectric potsherds 12 are set using symmetrical mode
In the both sides of the Karman vortex street band of column 14.So that active force caused by fluid can be synchronous effect circular piezoelectric potsherd
On 12.In a specific embodiment, the vertical range of each circular piezoelectric potsherd 12 to the Karman vortex street band of column 14 is situated between
In 1~10cm.Specifically, can be the different distance such as 1cm, 3cm, 5cm, 7cm, 10cm, during using which so that vortex street
Fluid driven circular piezoelectric potsherd 12 can be caused to produce vibration after formation.
Circular piezoelectric potsherd 12 in the present embodiment can use the circular piezoelectric potsherd 12 of different model, such as
PZT-5 type piezoelectric ceramics.Certainly other piezoelectrics, such as PVDF etc. also may be selected.
In specific set, due to circular piezoelectric potsherd 12, intensity itself is relatively low, is easily broken, therefore, in order to improve
The security of circular piezoelectric potsherd 12, in the present embodiment, there is provided supporting plate 13 supports circular piezoelectric potsherd 12,
During specific setting, the supporting plate 13 is fixed on every one end of support column 11 and for supporting circular piezoelectric potsherd 12.In this reality
The circular piezoelectric potsherd 12 used in example is applied as two, and two circular piezoelectric potsherds 12 are arranged on the both ends of support column 11
Be, the both ends of the support column 11 also not She Zhiliao supporting plate 13 support circular piezoelectric potsherd 12, wherein, the supporting plate 13
For the plate with certain support strength, such as durometer plastic or metallic plate, in a specific embodiment, the supporting plate 13
For metallic plate, specifically such as：Aluminium alloy, copper alloy, steel alloy material, thickness between 0.5 and 8 mm, so as to stable branch
Hold round shape piezoelectric ceramic piece 12.In specific set, supporting plate 13 that the support column 11 is often held can be arranged to one can also
It is arranged to two.When being arranged to one, supporting plate 13 is located at the side of circular piezoelectric potsherd 12, specifically, can be circle
Shape piezoelectric ceramic piece 12 is towards the side of the Karman vortex street band of column 14 or away from the side of the Karman vortex street band of column 14, such as Fig. 1
Shown, Fig. 1 shows that every one end of support column 11 uses a supporting plate 13, and supporting plate 13 is arranged on circular piezoelectric ceramics
Piece 12 is towards the side of the Karman vortex street band of column 14.Strengthen intensity using two supporting plates 13 in each circular piezoelectric potsherd 12
When, support column 11 per one end set supporting plate 13 number be two, and two supporting plates 13 divide be listed in circular piezoelectric ceramics
The both sides of piece 12.Circular piezoelectric potsherd 12 is folded in centre by two supporting plates 13, to improve circular piezoelectric pottery
The stability of ceramics 12.
When supporting plate 13 is connected with circular piezoelectric potsherd 12, no matter circular piezoelectric fixed using which kind of above-mentioned mode
Potsherd 12, pass through epoxy resin glue bond, such as 3M-DP-460 models between supporting plate 13 and circular piezoelectric potsherd 12
Epoxide-resin glue.So that circular piezoelectric potsherd 12 forms an overall structure with supporting plate 13 so that fluid is either made
Use on supporting plate 13 or circular piezoelectric potsherd 12, circular piezoelectric potsherd 12 can be driven to vibrate together, reduce both
Between loss.
In addition, in the present embodiment, as shown in Fig. 2 using the placement direction of TRT in Fig. 2 10 as reference direction, when
Wind from either above or below blow over when, represent to blow from above or below with straight line with the arrow obliquely or obliquely in Fig. 2
The wind crossed, wherein, arrow represents the direction blown of wind, and wind can be applied directly on circular piezoelectric potsherd 12, because wind exists
During flowing, there is certain change in intensity, therefore, is applied directly to by wind on circular piezoelectric potsherd 12 it is also possible that circle
Shape piezoelectric ceramic piece 12 vibrates, so as to realize the effect using wind power generation.
For the support column 11 in the present embodiment, its structure when setting first as a support connection, by circle
Piezoelectric ceramic piece 12, the Karman vortex street band of column 14 connect into a single unit system, and ensure relative position between the two.Specific
During preparation, the support column 11 can use different insulating materials, such as resin, plastics.In addition, in a kind of plan of establishment,
In order to reduce influence of the support column 11 to caused vortex street, the support column 11 uses engraved structure, so as to reduce convection body
Resistance, convection body is avoided to impact.In addition, in an other scheme, support column 11 is karman vortex street pole, in fluid stream
During through support column 11, the effect of vortex street is also produced, and from Karman vortex street principle, due to support column 11 and karman vortex street pole
Ring 14 is mutually perpendicular to, and therefore, the direction of the vibration of vortex street is vertical caused by both, also vertical in the direction of diffusion, therefore, two
When individual vortex street is integrated, vortex street caused by support column 11 can accelerate the Karman vortex street band of column 14 and produce vortex street in the horizontal direction (with Fig. 1 institutes
The placement direction of the TRT 10 shown is reference direction) on extension so that its can more be applied to circular piezoelectric pottery
On ceramics 12, so as to improve the efficiency of generating.
In the present embodiment, two circular piezoelectric potsherds 12 are connected with electric energy acquisition circuit 20, the electric energy acquisition circuit
It is made up of rectifier bridge and filter capacitor.The effect of wherein rectifier bridge is the cycle alternating-current for exporting two circular piezoelectric potsherds 12
Voltage conversion is into can store the stable DC voltage that uses；Filter capacitor therein must be sufficiently large to ensure output voltage
It is basicly stable.The electric energy acquisition circuit 20 is connected with energy-storage travelling wave tube 30, and the energy-storage travelling wave tube 30 is ultracapacitor or chargeable lithium
Battery, so as to stable storage electric energy.
By foregoing description as can be seen that the TRT that the present embodiment provides utilizes reproducible wind power generation, very
It is that wireless sensor unit power supply uses to be adapted in outdoor environment, especially wild environment, and method is simple, and cost is cheap, substantially
Without safeguarding, can there are wind, windy wide geographic area to install and use.The size of the device is changed according to the demand of electricity,
It is changeable.The device is 360 ° of open by design, can receive omnidirectional wind energy, improve generating efficiency.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. piezoelectricity wind power generation plant, it is characterised in that including：Support column, be sleeved on the support column and with the branch The Karman vortex street band of column that dagger is fixedly connected, divide what is be listed in the Karman vortex street band of column both sides and be fixedly connected with the support column Piezoelectric ceramic piece；And electric energy acquisition circuit and energy-storage travelling wave tube, wherein, the Karman vortex street band of column side is arcwall face, fluid Vortex street is vortexed and is formed around being produced after the arcwall face in the Karman vortex street band of column both sides, produces the work of the fluid after vortex street Firmly it is applied on the piezoelectric ceramic piece, the piezoelectric ceramic piece, which produces, to be vibrated and convert vibrational energy into electric energy, described Electric energy acquisition circuit gathers electric energy caused by the piezoelectric ceramic piece, and the energy-storage travelling wave tube stores the electric energy acquisition circuit collection Electric energy.
- 2. piezoelectricity wind power generation plant as claimed in claim 1, it is characterised in that the piezoelectric ceramic piece is made pottery for circular piezoelectric Ceramics, the diameter of the Karman vortex street band of column are not less than the diameter of the circular piezoelectric potsherd.
- 3. piezoelectricity wind power generation plant as claimed in claim 2, it is characterised in that two circular piezoelectric potsherds are symmetrical It is arranged on the both sides of the Karman vortex street band of column.
- 4. piezoelectricity wind power generation plant as claimed in claim 3, it is characterised in that each circular piezoelectric potsherd to institute The vertical range of the Karman vortex street band of column is stated between 1~10cm.
- 5. piezoelectricity wind power generation plant as claimed in claim 1, it is characterised in that the Karman vortex street band of column includes the first ring Body and the second ring body being sleeved in first ring body, and pass through support between first ring body and second ring body Bar is fixedly connected；Wherein, the cross section of first ring body is sleeved on the branch for circular or ellipse, second ring body On dagger.
- 6. piezoelectricity wind power generation plant as claimed in claim 2, it is characterised in that also include being fixed on the every of the support column One end and the supporting plate for supporting the circular piezoelectric potsherd.
- 7. piezoelectricity wind power generation plant as claimed in claim 6, it is characterised in that the support that the support column is set per one end The number of plate is two, and described two supporting plates point are listed in the both sides of the circular piezoelectric potsherd, and respectively with the circle Pass through epoxy resin glue bond between shape piezoelectric ceramic piece.
- 8. piezoelectricity wind power generation plant as claimed in claim 2, it is characterised in that the diameter of the Karman vortex street band of column is big In the diameter of the circular piezoelectric potsherd.
- 9. the piezoelectricity wind power generation plant as described in any one of claim 1~8, it is characterised in that the support column is toll bar Vortex street post.
- 10. the piezoelectricity wind power generation plant as described in any one of claim 1~8, it is characterised in that the support column is hollow out Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613816.0U CN206850688U (en) | 2017-05-27 | 2017-05-27 | A kind of piezoelectricity wind power generation plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720613816.0U CN206850688U (en) | 2017-05-27 | 2017-05-27 | A kind of piezoelectricity wind power generation plant |
Publications (1)
| Publication Number | Publication Date |
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| CN206850688U true CN206850688U (en) | 2018-01-05 |
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ID=60797967
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720613816.0U Withdrawn - After Issue CN206850688U (en) | 2017-05-27 | 2017-05-27 | A kind of piezoelectricity wind power generation plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425751A (en) * | 2017-05-27 | 2017-12-01 | 宋嘉庚 | A kind of piezoelectricity wind power generation plant |
| CN109787512A (en) * | 2019-03-12 | 2019-05-21 | 哈尔滨工业大学 | A kind of vertical concatenation arrangement formula piezoelectric harvester increasing coupling |
-
2017
- 2017-05-27 CN CN201720613816.0U patent/CN206850688U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425751A (en) * | 2017-05-27 | 2017-12-01 | 宋嘉庚 | A kind of piezoelectricity wind power generation plant |
| CN109787512A (en) * | 2019-03-12 | 2019-05-21 | 哈尔滨工业大学 | A kind of vertical concatenation arrangement formula piezoelectric harvester increasing coupling |
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Granted publication date: 20180105 Effective date of abandoning: 20180720 |
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