CN117767791A - Vibrating underwater energy collecting device - Google Patents
Vibrating underwater energy collecting device Download PDFInfo
- Publication number
- CN117767791A CN117767791A CN202311817175.7A CN202311817175A CN117767791A CN 117767791 A CN117767791 A CN 117767791A CN 202311817175 A CN202311817175 A CN 202311817175A CN 117767791 A CN117767791 A CN 117767791A
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- fixedly connected
- pressure
- resistant cabin
- floating body
- spring
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- 238000003306 harvesting Methods 0.000 claims description 7
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 238000010248 power generation Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a vibrating underwater energy collecting device, which relates to the technical field of power generation equipment and comprises the following components: a floating body; the bottom end of the bracket is rotationally connected with the floating body; the pressure-resistant cabin is airtight and hollow, and is in sliding fit with the bracket; at least one spring, one end of the spring is fixedly connected with the top end of the bracket, and the other end of the spring is fixedly connected with the pressure-resistant cabin; one end of the flexible plate is fixedly connected with the pressure-resistant cabin, and a piezoelectric film is fixedly arranged on the surface of the flexible plate; and the top end of each mooring anchor chain is fixedly connected with the floating body, and the bottom end of each mooring anchor chain is used for being fixed on the seabed. According to the vibrating underwater energy collecting device, the pressure-resistant cabin is vibrated by utilizing water flow, the pressure-resistant cabin drives the flexible plate to vibrate, and when the flexible plate vibrates, the piezoelectric film on the flexible plate deforms, so that the piezoelectric film generates electric energy.
Description
Technical Field
The invention relates to the technical field of power generation equipment, in particular to a vibrating underwater energy collecting device.
Background
At present, most of underwater unmanned devices need to perform long-time working activities in water areas, have very high requirements on the electric energy endurance of the devices, and the traditional electric energy supply mode mainly comprises cable type power supply and battery pack power supply, but the two power supply modes have obvious defects:
the flexibility of the device is limited by the length of the cable used for cable type power supply, and the plugging interface has the risk of electric leakage and short circuit in the underwater conductor environment;
the battery pack is limited by the volume, and the carrying energy is limited, and the recovery device still needs to be salvaged for replacing the battery, so that the working efficiency is influenced and the labor cost is wasted.
Therefore, how to safely and efficiently supply electric energy to an underwater unmanned device for a long time is a technical problem to be solved.
Disclosure of Invention
The invention aims to provide a vibrating type underwater energy collecting device, which solves the problems in the prior art, realizes underwater power generation and supplies electric energy safely and efficiently for an underwater unmanned device for a long time.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a vibrating underwater energy collecting device, comprising:
a floating body;
the bottom end of the bracket is rotationally connected with the floating body;
the pressure-resistant cabin is airtight and hollow, and is in sliding fit with the bracket;
at least one spring, one end of the spring is fixedly connected with the top end of the bracket, and the other end of the spring is fixedly connected with the pressure-resistant cabin;
one end of the flexible plate is fixedly connected with the pressure-resistant cabin, and a piezoelectric film is fixedly arranged on the surface of the flexible plate;
and the top end of each mooring anchor chain is fixedly connected with the floating body, and the bottom end of each mooring anchor chain is used for being fixed on the seabed.
Preferably, the floating body is provided with a fixed base, the top end of the vertical rotating shaft is fixedly connected with the bottom end of the support, and the vertical rotating shaft is in running fit with the fixed base through a bearing.
Preferably, the fixed base comprises a fixed frame and a plurality of diagonal braces, and the fixed frame is wrapped on the floating body and welded with the floating body; the bearing comprises a first bearing and a second bearing, wherein the outer ring of the first bearing is fixedly connected with the fixed frame, one end of each inclined strut is fixedly connected with the outer ring of the second bearing, the other end of each inclined strut is fixedly connected with the fixed frame, and the inner ring of the first bearing and the inner ring of the second bearing are respectively fixedly sleeved on the vertical rotating shaft.
Preferably, the support comprises a bottom plate and two vertical support rods arranged at intervals, wherein the bottom ends of the vertical support rods are fixedly connected with the bottom plate, and the bottom plate is fixedly connected with the top end of the vertical rotating shaft.
Preferably, two ends of the pressure-resistant cabin are respectively and fixedly provided with a sliding block, each vertical supporting rod is respectively and fixedly provided with a sliding rail, the two sliding rails are parallel to each other, and the sliding rails are in one-to-one correspondence with the sliding blocks; the sliding blocks are in sliding fit with the corresponding sliding rails.
Preferably, the number of the springs is two, one end of the spring is fixedly connected with the top end of one vertical supporting rod, the other end of the spring is fixedly connected with the pressure-resistant cabin, and one end of the other spring is fixedly connected with the top end of the other vertical supporting rod, and the other end of the spring is fixedly connected with the pressure-resistant cabin.
Preferably, the flexible board is provided with a cylindrical balancing weight, and the axial direction of the cylindrical balancing weight is the same as the width direction of the flexible board.
Preferably, a cylindrical vibrator is arranged on the flexible board, and the axial direction of the cylindrical vibrator is the same as the width direction of the flexible board.
Preferably, both the float and the pressure-resistant cabin are cylindrical; the piezoelectric film is made of PVDF; the mooring anchor chains are four.
Compared with the prior art, the invention has the following technical effects:
according to the vibrating underwater energy collecting device, the pressure-resistant cabin is vibrated by utilizing water flow, the pressure-resistant cabin drives the flexible plate to vibrate, and when the flexible plate vibrates, the piezoelectric film on the flexible plate deforms, so that the piezoelectric film generates electric energy.
Further, when the flexible plate vibrates, the cylindrical balancing weight and the cylindrical vibrator on the flexible plate can be driven to vibrate together, and the vibration of the cylindrical balancing weight and the cylindrical vibrator can further promote the deformation of the piezoelectric film, so that the power generation efficiency of the piezoelectric film is improved.
Furthermore, the arrangement of the springs can enhance the vibration generated by the pressure-resistant cabin under the action of water flow, so that the power generation efficiency is improved.
Furthermore, the vibration type underwater energy collecting device can utilize near-sea waves and deep-sea microfluidics to generate power, and has the diversity of ocean energy utilization.
Furthermore, the vibrating underwater energy collecting device disclosed by the invention can be suitable for different sea areas and depths, and has adjustability of working depth.
Furthermore, the vibrating underwater energy collecting device can meet the requirement of low-flow-rate starting, and has the adaptability of a wider flow-rate range.
Furthermore, the array power generation can be realized by arranging a plurality of the vibrating underwater energy collecting devices, so that more underwater power supply requirements can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a vibratory underwater energy harvesting apparatus of the present disclosure;
FIG. 2 is a schematic view of a portion of a vibratory underwater energy collection device of the present invention;
FIG. 3 is a top view of the vibratory underwater energy collection device of the present invention;
FIG. 4 is a schematic diagram of the power generation of a piezoelectric film in a vibratory underwater energy harvesting device of the present disclosure;
wherein, 100, the vibration type underwater energy collecting device; 1. mooring a mooring chain; 2. a floating body; 3. a fixed frame; 4. a diagonal brace; 5. a first bearing; 6. a second bearing; 7. a bottom plate; 8. a vertical support bar; 9. a slide rail; 10. a spring; 11. a pressure-resistant cabin; 12. a flexible board; 13. a cylindrical balancing weight; 14. a cylindrical vibrator; 15. a sliding block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a vibrating type underwater energy collecting device, which solves the problems in the prior art, realizes underwater power generation and supplies electric energy safely and efficiently for an underwater unmanned device for a long time.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1 to 4, the present embodiment provides a vibration type underwater energy collecting apparatus 100 including:
a floating body 2;
the bottom end of the bracket is rotationally connected with the floating body 2;
a closed and hollow pressure-resistant cabin 11, wherein the pressure-resistant cabin 11 is in sliding fit with the bracket;
two springs 10, one end of each spring 10 is fixedly connected with the top end of the bracket, and the other end of each spring 10 is fixedly connected with the pressure-resistant cabin 11;
the flexible board 12, one end of the flexible board 12 is fixedly connected with the pressure-resistant cabin 11, and a piezoelectric film is fixedly arranged on the surface of the flexible board 12;
and the top end of each mooring anchor chain 1 is fixedly connected with the floating body 2, and the bottom end of each mooring anchor chain 1 is used for being fixed on the seabed.
In this embodiment, both the float 2 and the pressure chamber 11 are cylindrical; the piezoelectric film is made of PVDF, and the piezoelectric film is made of the existing mature product, and the specific structure of the piezoelectric film is not expanded in the embodiment.
In the alternative scheme of this embodiment, more preferably, be provided with unable adjustment base on the body 2, the top of vertical pivot links firmly with the bottom of support, and vertical pivot passes through bearing and unable adjustment base normal running fit.
Specifically, the fixed base comprises a fixed frame 3 and a plurality of diagonal braces 4, and the fixed frame 3 is wrapped on the floating body 2 and welded with the floating body 2; the bearing comprises a first bearing 5 and a second bearing 6, wherein the outer ring of the first bearing 5 is fixedly connected with the fixed frame 3, one end of each inclined strut 4 is fixedly connected with the outer ring of the second bearing 6, the other end of each inclined strut is fixedly connected with the fixed frame 3, and the inner ring of the first bearing 5 and the inner ring of the second bearing 6 are respectively fixedly sleeved on the vertical rotating shaft.
In this embodiment, the support and the floating body 2 can rotate relatively, and when water flows through, the support can be driven to rotate relative to the floating body 2, so that the pressure-resistant cabin 11 and the flexible plate 12 can always face the water flow, namely, the pressure-resistant cabin 11 and the flexible plate 12 can adapt to different inflow conditions, and the adaptability is strong.
In this embodiment, the support includes a bottom plate 7 and two vertical support rods 8 arranged at intervals, the bottom ends of the vertical support rods 8 are fixedly connected with the bottom plate 7, and the bottom plate 7 is fixedly connected with the top end of the vertical rotating shaft.
In the embodiment, two ends of the pressure-resistant cabin 11 are respectively and fixedly provided with a sliding block 15, each vertical supporting rod 8 is respectively and fixedly provided with a sliding rail 9, the two sliding rails 9 are parallel to each other, and the sliding rails 9 and the sliding blocks 15 are in one-to-one correspondence; the slide blocks 15 are in sliding fit with the corresponding slide rails 9.
In this embodiment, two springs 10 are provided, one end of one spring 10 is fixedly connected with the top end of one vertical support rod 8, the other end is fixedly connected with the pressure-resistant cabin 11, one end of the other spring 10 is fixedly connected with the top end of the other vertical support rod 8, and the other end is fixedly connected with the pressure-resistant cabin 11.
Since the pressure-resistant cabin 11 is in sliding fit with the bracket through the sliding blocks 15 and the sliding rails 9, when the pressure-resistant cabin 11 slides in water relative to the bracket due to self buoyancy and flow of water, the spring 10 can apply an opposite acting force to the pressure-resistant cabin 11, so that the pressure-resistant cabin 11 vibrates relative to the bracket.
In this embodiment, the flexible board 12 is provided with a cylindrical weight 13, and the axial direction of the cylindrical weight 13 is the same as the width direction of the flexible board 12. The flexible board 12 is also provided with a cylindrical vibrator 14, and the axial direction of the cylindrical vibrator 14 is the same as the width direction of the flexible board 12. The cylindrical weight 13 serves to increase the weight of the flexible board 12 so that the flexible board 12 is not in a vertical state in water, and the cylindrical vibrator 14 serves to enhance the vibration of the flexible board 12, and at the same time, the cylindrical weight 13 can also enhance the vibration of the flexible board 12.
It should be noted that, the cylindrical balancing weight 13 and the cylindrical vibrator 14 may be cylindrical objects, or may be existing mature products, and in this embodiment, specific structures of the cylindrical balancing weight 13 and the cylindrical vibrator 14 are not developed.
In this embodiment, a circuit processing system is disposed in the pressure-resistant cabin 11, the circuit processing system converts the current generated by the piezoelectric film into stable direct current or alternating current, and the output end of the circuit processing system is electrically connected with the power input end of the underwater unmanned device.
The working principle of the vibration type underwater energy collecting device 100 of the present embodiment is specifically as follows:
the floating body 2 is fixed on the seabed through a mooring anchor chain 1; the support rotates relative to the base and the floating body 2 through the first bearing 5 and the second bearing 6 so as to adapt to different incoming flow conditions to adjust the flow facing surface of the device, so that the pressure-resistant cabin 11 is always in an optimal energy capturing state, and the pressure-resistant cabin 11 is guided and limited by two parallel sliding rails 9 on the support;
the pressure-resistant cabin 11 can vibrate under the condition of incoming flow through the spring 10, so that the rear flexible plate 12 and the cylindrical vibrator 14 are driven to move, the cylindrical vibrator 14 can further drive the flexible plate 12 to move, deformation of the piezoelectric film is promoted, and the power generation efficiency of the piezoelectric film is improved;
when the piezoelectric material on the piezoelectric film on the flexible board 12 is subjected to external pressure or stress, the internal electric dipole moment of the material changes, so that the phenomenon of charge separation is generated on the surface of the material, and the change of the electric dipole moment can be used for generating voltage, thereby realizing the piezoelectric effect and generating electric energy.
As shown in fig. 4, the mechanical stress may cause distortion or deformation of the lattice structure inside the piezoelectric material, and due to the change of the lattice structure of the piezoelectric material, positive and negative charges therein may be separated to form a charge dipole moment; this is a key step in the piezoelectric effect, and electrons flow inside the piezoelectric material while creating a potential difference, thereby creating an electric current; this current is the electrical energy generated by the piezoelectric material.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "top", "bottom", "vertical", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (9)
1. A vibratory underwater energy harvesting device comprising:
a floating body;
the bottom end of the bracket is rotationally connected with the floating body;
the pressure-resistant cabin is airtight and hollow, and is in sliding fit with the bracket;
at least one spring, one end of the spring is fixedly connected with the top end of the bracket, and the other end of the spring is fixedly connected with the pressure-resistant cabin;
one end of the flexible plate is fixedly connected with the pressure-resistant cabin, and a piezoelectric film is fixedly arranged on the surface of the flexible plate;
and the top end of each mooring anchor chain is fixedly connected with the floating body, and the bottom end of each mooring anchor chain is used for being fixed on the seabed.
2. The vibratory underwater energy harvesting device of claim 1, wherein: the floating body is provided with a fixed base, the top end of the vertical rotating shaft is fixedly connected with the bottom end of the support, and the vertical rotating shaft is in running fit with the fixed base through a bearing.
3. The vibratory underwater energy collection device of claim 2 wherein: the fixed base comprises a fixed frame and a plurality of diagonal braces, and the fixed frame is wrapped on the floating body and welded with the floating body; the bearing comprises a first bearing and a second bearing, wherein the outer ring of the first bearing is fixedly connected with the fixed frame, one end of each inclined strut is fixedly connected with the outer ring of the second bearing, the other end of each inclined strut is fixedly connected with the fixed frame, and the inner ring of the first bearing and the inner ring of the second bearing are respectively fixedly sleeved on the vertical rotating shaft.
4. The vibratory underwater energy collection device of claim 2 wherein: the support comprises a bottom plate and two vertical support rods arranged at intervals, wherein the bottom ends of the vertical support rods are fixedly connected with the bottom plate, and the bottom plate is fixedly connected with the top end of the vertical rotating shaft.
5. The vibratory underwater energy collection device of claim 4 wherein: two ends of the pressure-resistant cabin are respectively and fixedly provided with a sliding block, each vertical supporting rod is respectively and fixedly provided with a sliding rail, the two sliding rails are parallel to each other, and the sliding rails are in one-to-one correspondence with the sliding blocks; the sliding blocks are in sliding fit with the corresponding sliding rails.
6. The vibratory underwater energy collection device of claim 4 wherein: the pressure-resistant cabin is characterized in that two springs are arranged, one end of each spring is fixedly connected with the top end of one vertical supporting rod, the other end of each spring is fixedly connected with the pressure-resistant cabin, one end of each spring is fixedly connected with the top end of the other vertical supporting rod, and the other end of each spring is fixedly connected with the pressure-resistant cabin.
7. The vibratory underwater energy harvesting device of claim 1, wherein: the flexible board is provided with a cylindrical balancing weight, and the axial direction of the cylindrical balancing weight is the same as the width direction of the flexible board.
8. The vibratory underwater energy harvesting device of claim 1, wherein: the flexible board is provided with a cylindrical vibrator, and the axial direction of the cylindrical vibrator is the same as the width direction of the flexible board.
9. The vibratory underwater energy harvesting device of claim 1, wherein: the floating body and the pressure-resistant cabin are cylindrical; the piezoelectric film is made of PVDF; the mooring anchor chains are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311817175.7A CN117767791A (en) | 2023-12-27 | 2023-12-27 | Vibrating underwater energy collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311817175.7A CN117767791A (en) | 2023-12-27 | 2023-12-27 | Vibrating underwater energy collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117767791A true CN117767791A (en) | 2024-03-26 |
Family
ID=90323843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311817175.7A Pending CN117767791A (en) | 2023-12-27 | 2023-12-27 | Vibrating underwater energy collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117767791A (en) |
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2023
- 2023-12-27 CN CN202311817175.7A patent/CN117767791A/en active Pending
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