CN201781430U - Aboard piezoelectric generating device - Google Patents
Aboard piezoelectric generating device Download PDFInfo
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- CN201781430U CN201781430U CN2010205351321U CN201020535132U CN201781430U CN 201781430 U CN201781430 U CN 201781430U CN 2010205351321 U CN2010205351321 U CN 2010205351321U CN 201020535132 U CN201020535132 U CN 201020535132U CN 201781430 U CN201781430 U CN 201781430U
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model discloses an aboard piezoelectric generating device, which relates to the technical field of piezoelectric vibration power generation and comprises at least one generating box (1), a ship (2) and a working platform (4). The generating box includes an outer casing (102), a support (103), a plurality of suspension arm plates (105) and a mass block (106), the support (103) is fixed inside the outer casing, the suspension arm plates (105) and the mass block (106) are mounted inside the outer casing, one end of each suspension arm plate is fixed onto the support (103) while the other end is lapped on the mass block (106) so as to be jointly used as a suspension arm end with the mass block, a plurality of the parallel suspension arm plates (105) form a row, at least one row of the suspension arm plates shares the same mass block (106), and at least two piezoelectric elements (104) are adhered to two surfaces of each suspension arm plate. The aboard piezoelectric generating device can convert wave vibration mechanical energy into electric energy, and is a novel green power generating device.
Description
Technical field
The utility model relates to piezoelectricity oscillating generating set, can convert the vibration mechanical energy of water surface wave to electric energy, is stored and utilizes.
Background technology
Along with the quickening of science and technology development and modernization, human demand to the energy grows with each passing day, and causes the primary energy consumption straight line to rise and is used up in the near future.Therefore people invest one of energy depot maximum on the earth-ocean one after another to sight, and marine energy is a clean energy resource free from environmental pollution, and is regenerative resource, and is inexhaustible, nexhaustible.Utilize the wave power generation in the ocean to provide clean energy resource for outlying island and Offshore Units etc., in addition, the power that can also utilize the wave power generation in the ocean to provide carries out desalinization, carries out air conditioner refrigerating and hydrogen manufacturing etc. from deep-sea extraction low temperature seawater.Day by day ripe all right instead of part conventional energy resource along with the wave power generation technology in the ocean all will have important economic society meaning for alleviating energy scarcity, greenhouse effect and the environmental pollution etc. that the world faced.
The key technology of wave-energy power generation is the effective absorption to wave energy of device system, and research at present at most, the most promising three kinds of devices are: oscillating water column wave power device, swinging type wave energy device, poly-ripple reservoir wave power device.
The oscillating water column wave power device utilizes compressed air stream to drive generator for electricity generation with the medium of air as conversion.The advantage of this device be rotating mechanism not with contact with sea water, avoided the corrosion of seawater to device.Shortcoming is that the secondary conversion efficiency is low, and generating is unstable.
The swinging type wave energy device is the front and back that take place under the effect of wave force by pendulum mass or swings up and down, and wave energy is converted to the kinetic energy of balance staff, drives generator for electricity generation.The advantage of this device is the conversion efficiency height, can combine with phase control technology easily, makes wave power device can absorb device and meets wave width wave energy in addition.Shortcoming is that the maintenance of machinery is comparatively difficult.
The key technology of poly-ripple reservoir wave power device is a flaring poly-ripple device and the wedge shape guide groove that narrows down gradually, utilizes head fall between reservoir and off-lying sea to drive the hydraulic generator unit and generates electricity.The advantage of poly-ripple reservoir wave power device is that the conversion of wave energy does not have movable part, good reliability and stable.Weak point is that this power station of construction is strict to landform, is difficult for promoting.
Piezoelectric generating device utilizes piezoelectric, converts the vibration mechanical energy of surrounding environment to electric energy, is a kind of novel generation technology.It is the piezo-electric generating system of energy source and power with the wave that Chinese patent CN 1696499A has proposed, and piezoelectric element is fixed in housing, and collision mechanism produces distortion as running oscillator (initiatively) during fluctuation, produce pulse electric energy.This piezo-electric generating system energy output is less, after the long-term collision of piezoelectric element, damages easily.
The utility model content
The purpose of this utility model is that the vibration mechanical energy with ship converts electric energy to, is stored in the energy storage device, is electric.Because on wide lake surface or sea, the vibration of ship is available anywhere, and vibration causes the bending deformation quantity of piezoelectric bigger, and electricity-generating method of the present utility model and system's energy output thereof are big, applied range.
Piezoelectric generating device on a kind of ship is characterized in that: comprise at least one generating casing, hull, workbench; Above-mentioned generating casing, workbench are fixedly mounted on the hull; Connect with cable between above-mentioned generating casing and the workbench circuit; Above-mentioned generating casing comprises shell, be fixed in the support of shell inboard, be installed on the some cantilever slabs and the mass of shell inboard; Above-mentioned suspended wall plate one end is fixed on the support, and the other end rides on the mass and makes this end and mass jointly as cantilever end; A plurality of parallel suspended wall plates are formed row, the shared mass of at least one row cantilever slab; Above-mentioned suspended wall plate two sides all is pasted with a slice piezoelectric element at least; Above-mentioned piezoelectric element is made up of first electrode, piezoelectric, second electrode; Above-mentioned generating is pressed the alternating current collection that all piezoelectric elements are produced also is installed in the casing, and converts galvanic change-over circuit to; Above-mentioned workbench comprises that the direct current that is used for the generating casing produces charges to energy storage device, control charging voltage and electric current, and prevent energy storage device to the charge controller of piezoelectric element and solar panel reverse charging, be used for store electrical energy and outwards power supply energy storage device, be used for the direct current that energy storage device stores is converted to inverter, the workbench shell of alternating current.
Described mass is connected with shell by elastic rope or spring.Can play and prevent that mass from bumping against outer casing inner wall.
Energy storage device in the described workbench is battery or electric capacity or flywheel or superconducting magnetic energy storage.
The cantilever slab in described each generating casing and the size of mass are inequality, and the resonance frequency of cantilever slab is also inequality in each casing.
Piezoelectric element surface, electrical connector in described generating casing, the workbench partly pass through insulation processing.
Each piezoelectric element in described each row piezoelectric element that sticks on the cantilever slab is measure-alike, and each piezoelectric element size that sticks in each the row pressure electric device on the cantilever slab has nothing in common with each other.
The above-mentioned alternating current collection that all piezoelectric elements are produced is got up and to convert galvanic change-over circuit concrete form to as follows: the some piezoelectric elements series connection on some piezoelectric elements in the generating casing on the same cantilever slab or the different cantilever slab form serial module structure; After some serial module structure parallel connections, the rectifier of connecting, diode in parallel again forms module in parallel; After several module series connection in parallel, with a diode series connection, form branch circuit again; After some branch circuit parallel connections, form the change-over circuit of whole piezo-electric generating casing.When wherein minority piezoelectric element generation short circuit, when breaking fault, this structure can guarantee whole generating device energy operate as normal; Simultaneously, this structure can also guarantee the one-way flow of DC circuit, prevents that energy storage device is to the piezoelectric element reverse charging.
Description of drawings
Fig. 1 is an apparatus structure schematic diagram front view of the present utility model.
Fig. 2 is first kind of generating casing front view profile of the present utility model.
Fig. 3 is first kind of generating casing vertical view profile of the present utility model.
Fig. 4 is the piezoelectric element structural representation.
Fig. 5 is a change-over circuit principle schematic of the present utility model.
Fig. 6 is a workbench structural representation of the present utility model.
Embodiment
Below in conjunction with example example and accompanying drawing the utility model is described in further detail.
Fig. 1 shows the apparatus structure of present embodiment, and piezoelectric generating device on this ship comprises several generating casing 1 and workbenches 4; Connect with cable 3 between generating casing 1 and workbench 4 circuit.
The internal structure of the generating casing 1 of present embodiment has been described in Fig. 2～3, several two sides are pasted with the parallel cantilever slab 105 of a plurality of piezoelectric elements 104 and form row, one end of cantilever slab is fixed on the support 103, the other end rides on the mass 106, the shared mass 106 of at least one row cantilever slab; Support 103 is vertically mounted on shell 102 bottoms of generating casing; The two ends of mass 106 are connected on the shell 102 of generating casing by elastic rope or spring 107, distance when length is longer than inactive state between mass and power generation box body case, when the amplitude of power generation box body case is excessive, can suppress the amplitude of mass, avoid the damage of piezoelectric element; Change-over circuit 108 is installed in enclosure; When the generating casing is installed on the water surface raft, vibration along with wave, generating casing 1 also takes place up and down or side-to-side vibrations, under the acting in conjunction of own wt and mass 106, the elasticity of flexure distortion of alternation takes place in cantilever slab 105, the piezoelectric element 104 that sticks on the cantilever slab upper and lower surface stretching and the compression of alternation of also generating electricity, because piezoelectric effect, piezoelectric element will produce the electric energy of alternation, by change-over circuit 108, the electric energy that all piezoelectric elements produce in the whole generating casing compiles and converts direct current energy to; When cantilever slab vibrated, the strain facies on cantilever slab surface, distance bracket same distance place so row 110 piezoelectric elements is measure-alike, also can produce identical electric weight together; The strain on cantilever slab surface, distance bracket different distance place is also inequality, by changing the size of a row 109 piezoelectric elements, can make each piezoelectric element produce identical electric weight; The flexural resonance frequency of cantilever slab is mainly determined jointly by the material and the physical dimension of cantilever slab, when the vibration frequency of wave during near the flexural resonance frequency of cantilever slab, the elasticity of flexure distortion of cantilever slab reaches maximum, and the electric weight that piezoelectric element produces also can reach maximum; Because the size difference of cantilever slab in each generating casing, its flexural resonance frequency is also inequality, and device can effectively absorb the wave vibration mechanical energy of a plurality of frequencies, realizes the wideband generating.
Fig. 4 has described the structure of piezoelectric element, and piezoelectric element comprises piezoelectric 10402, first electrode 10401 and second electrode 10403.Wherein first electrode 10401 and second electrode 10403 are coated with the two sides that is plated in piezoelectric 10402, and piezoelectric 10402 is positioned at the centre of 2 electrodes, similar sandwich structure; The polarised direction of piezoelectric is parallel to thickness direction.Because direct piezoelectric effect when piezoelectric element is subjected to ess-strain, will produce electric charge and voltage on electrode.
Fig. 5 has described the transfer principle of change-over circuit, and some piezoelectric elements 104 series connection in the generating casing form serial module structure 10801; After some serial module structure 10801 parallel connections, the rectifier 10803 of connecting, diode 10802 in parallel again forms module 10805 in parallel; After several module 10805 series connection in parallel, with 10804 series connection of a diode, form branch circuit 10806 again; After some branch circuit 10806 parallel connections, form the change-over circuit 10807 of whole piezo-electric generating casing; By change-over circuit, device can convert the vibration mechanical energy of wave to direct current energy.
Fig. 6 has described the structure of workbench, and workbench is made up of shell 402, charge controller 401, energy storage device 403 and inverter 404; The AC energy that piezoelectric element produces converts direct current energy to through change-over circuit, by 403 chargings of 401 pairs of energy storage devices of charge controller, and voltage, the electric current of charge controller control charging; Energy storage device can also can pass through inverter 404 directly to the DC load power supply, and direct current is converted to alternating current, to the AC load power supply, or the input electrical network.
Claims (7)
1. piezoelectric generating device on the ship is characterized in that:
Comprise at least one generating casing (1), hull (2), workbench (4); Above-mentioned generating casing (1), workbench (4) are fixedly mounted on the hull (2); Connect with cable (3) between above-mentioned generating casing (1) and workbench (4) circuit;
Above-mentioned generating casing comprises shell (102), be fixed in the support (103) of shell inboard, be installed on the some cantilever slabs (105) and the mass (106) of shell inboard; Above-mentioned suspended wall plate one end is fixed on the support (103), and the other end rides on the mass (106) and makes this end and mass jointly as cantilever end; A plurality of parallel suspended wall plates (105) are formed row, the shared mass of at least one row cantilever slab (106);
Above-mentioned suspended wall plate two sides all is pasted with a slice piezoelectric element (104) at least; Above-mentioned piezoelectric element (104) is made up of first electrode (10401), piezoelectric (10402), second electrode (0403);
Above-mentioned generating is pressed the alternating current collection that all piezoelectric elements are produced also is installed in the casing, and converts galvanic change-over circuit (108) to;
Above-mentioned workbench (4) comprises that the direct current that is used for the generating casing produces charges to energy storage device, control charging voltage and electric current, and prevent energy storage device to the charge controller (401) of piezoelectric element and solar panel reverse charging, be used for store electrical energy and outwards power supply energy storage device (403), be used for the direct current that energy storage device stores is converted to inverter (404), the workbench shell (402) of alternating current.
2. piezoelectric generating device on the ship according to claim 1 is characterized in that: above-mentioned mass (106) is connected with shell (102) by elastic rope or spring (107).
3. piezoelectric generating device on the ship according to claim 1 is characterized in that: the energy storage device (403) in the workbench (4) is battery or electric capacity or flywheel or superconducting magnetic energy storage.
4. piezoelectric generating device on the ship according to claim 1 is characterized in that: the cantilever slab in each generating casing and the size of mass are inequality, and the resonance frequency of cantilever slab is also inequality in each casing.
5. piezoelectric generating device on the ship according to claim 1 is characterized in that: piezoelectric element surface, the electrical connector of generating casing (1) and workbench (4) partly pass through insulation processing.
6. piezoelectric generating device on the ship according to claim 1, it is characterized in that: each piezoelectric element that sticks in each row (110) piezoelectric element on the cantilever slab (105) is measure-alike, and each piezoelectric element size that sticks in each row (109) piezoelectric element on the cantilever slab (105) has nothing in common with each other.
7. piezoelectric generating device on the ship according to claim 1, it is characterized in that the above-mentioned alternating current collection that all piezoelectric elements are produced is got up and to convert galvanic change-over circuit (108) concrete form to as follows: some piezoelectric elements in the generating casing on the same cantilever slab or the series connection of the some piezoelectric elements (104) on the different cantilever slab form serial module structure (10801); After some serial module structures (10801) parallel connection, the rectifier (10803) of connecting, a diode (10802) in parallel again forms module in parallel (10805); After several module in parallel (10805) series connection, with a diode (10804) series connection, form branch circuit (10806) again; After some branch circuits (10806) parallel connection, form the change-over circuit (10807) of whole piezo-electric generating casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205351321U CN201781430U (en) | 2010-09-16 | 2010-09-16 | Aboard piezoelectric generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205351321U CN201781430U (en) | 2010-09-16 | 2010-09-16 | Aboard piezoelectric generating device |
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| CN201781430U true CN201781430U (en) | 2011-03-30 |
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| CN2010205351321U Expired - Fee Related CN201781430U (en) | 2010-09-16 | 2010-09-16 | Aboard piezoelectric generating device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346252A (en) * | 2013-07-05 | 2013-10-09 | 重庆大学 | MEMS vibration energy collector based on PZT piezoelectric beam array |
| CN107086651A (en) * | 2017-06-15 | 2017-08-22 | 吉林大学 | A kind of drawer formula vibration prisoner can battery |
| CN107448351A (en) * | 2017-06-27 | 2017-12-08 | 哈尔滨工程大学 | Array piezoelectric cantilever Wave energy converter with anti-ripple floating drum |
| CN113131792A (en) * | 2021-05-31 | 2021-07-16 | 广东海洋大学 | Side outer plate piezoelectric power generation device utilizing ship rolling |
| CN113746371A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Laminated array simply supported beam piezoelectric vibration energy collector and energy collecting method |
-
2010
- 2010-09-16 CN CN2010205351321U patent/CN201781430U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346252A (en) * | 2013-07-05 | 2013-10-09 | 重庆大学 | MEMS vibration energy collector based on PZT piezoelectric beam array |
| CN107086651A (en) * | 2017-06-15 | 2017-08-22 | 吉林大学 | A kind of drawer formula vibration prisoner can battery |
| CN107448351A (en) * | 2017-06-27 | 2017-12-08 | 哈尔滨工程大学 | Array piezoelectric cantilever Wave energy converter with anti-ripple floating drum |
| CN107448351B (en) * | 2017-06-27 | 2019-04-23 | 哈尔滨工程大学 | Array piezoelectric cantilever Wave energy converter with anti-wave floating drum |
| CN113131792A (en) * | 2021-05-31 | 2021-07-16 | 广东海洋大学 | Side outer plate piezoelectric power generation device utilizing ship rolling |
| CN113131792B (en) * | 2021-05-31 | 2022-12-23 | 广东海洋大学 | Side outer plate piezoelectric power generation device utilizing ship rolling |
| CN113746371A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Laminated array simply supported beam piezoelectric vibration energy collector and energy collecting method |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20110330 Termination date: 20120916 |