CN201904739U - Piezoelectric vibration battery device - Google Patents
Piezoelectric vibration battery device Download PDFInfo
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- CN201904739U CN201904739U CN2010201734245U CN201020173424U CN201904739U CN 201904739 U CN201904739 U CN 201904739U CN 2010201734245 U CN2010201734245 U CN 2010201734245U CN 201020173424 U CN201020173424 U CN 201020173424U CN 201904739 U CN201904739 U CN 201904739U
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Abstract
The utility model relates to a piezoelectric vibration battery device which belongs to the field of a piezoelectric generating device. The piezoelectric vibration battery device comprises an outer shell (7), a plurality of hanging wall plates (5) arranged at the inside of the outer shell, and a mass block (6) connected to the outer shell through the hanging wall plates, wherein two sides of each hanging wall plate are respectively adhered to at least one piezoelectric element (4); a rectifier (10), a charge controller (11) and an energy storage element (12) are mounted in the outer shell (7); and one end of the outer shell (7) is connected with the energy storage element (12) to be a battery anode (8), while the other end is connected to the energy storage element (12) to be a battery cathode (13). The piezoelectric vibration battery device can convert the environmental vibration mechanical energy into electric energy, thereby replacing the general battery to supply power to a mobile electronic device, being free from charging or exchanging the battery, and reducing the usage amount of the traditional chemical batteries.
Description
Technical field
The utility model relates to piezoelectric generating device, and a kind of such device can convert the vibration mechanical energy of environment to electric energy.
Background technology
Piezoelectric generating device can convert the vibration mechanical energy of surrounding environment or human body to electric energy, is power electronic equipment, makes electronic equipment need not frequently to change battery, or frequently is battery charge, has improved the non-maintaining property of electronic equipment.Its typical case uses and to be included as radio-based electronic devices such as wireless senser or radio sensing network, or packaged type electronic equipments such as mobile phone, flashlight provide electric energy, all has important use at national defence field and civil area and is worth.
The operation principle of piezo-electric generating is based on direct piezoelectric effect, and the vibration mechanical energy of environment or human body is converted into electric energy.According to the structure difference of piezoelectric generating device, two kinds of generation modes of collision type piezo-electric generating and bending-type piezo-electric generating are arranged.The collision type generating is that stress changes when utilizing piezoelectric element to be collided, and produces electric energy.And the bending-type piezo-electric generating is when utilizing the piezoelectric element bending, and stress changes, and produces electric energy.
In the bending-type piezoelectric generating device, piezoelectric generally all is to make Piezoelectric Cantilever Beams.Such as Chinese patent CN 100414808C a kind of piezoelectric harvester has been proposed, free end hangs the cantilever beam two sides of lumped mass piece and pastes piezoelectric, in cantilever beam when vibration, is by piezoelectric output electric energy and store, but the electric energy that produces is less, is mainly used in the power supply of microelectronic component.Chinese patent CN101017989A also discloses a kind of piezoelectric cantilever electricity generation system for the micro radio sensing network node power supply, and wherein piezoelectric still sticks on the upper and lower surface of cantilever beam.Chinese patent CN 101262189A discloses a kind of piezoelectric generating device that utilizes cantilever beam, and wherein piezoelectric still sticks on the upper and lower surface of metal cantilever beam.United States Patent (USP) WO2007121092 also described be mainly used in MEMS (micro electro mechanical system) (MEMS) power supply the piezoelectric energy recovery device of cantilever beam structure.Above-mentioned patent of invention all is to utilize the mechanical oscillation of single piezoelectric cantilever to produce electric energy, because the structural limitations of system can only convert the mechanical oscillation of a certain frequency in the external world to electric energy, generating efficiency is low, frequency range is narrow, can only be used for the power supply of miniature electronic system.Chinese patent CN 101272109A discloses a kind of a plurality of piezoelectric cantilevers that utilize two groups of interdigitations, carries out the wideband Blast Furnace Top Gas Recovery Turbine Unit (TRT); Piezoelectric cantilever wherein is directly to be made by piezoelectric element, or makes by piezoelectric element is bonding.Chinese patent CN 1696499A discloses a kind of piezo-electric generating system, when utilizing piezoelectric element and collision mechanism to bump, and piezoelectric element generation deformation, thus produce electric energy.In above-mentioned piezoelectric generating device, piezoelectric cantilever is by two kinds of versions, and a kind of is directly with component affixing together, forms the piezoelectric bimorph cantilever beam structure; Another kind is the two sides that piezoelectric element is sticked on other Material Cantilever Beam, forms the sandwich structure piezoelectric cantilever.
U.S. Pat 7521842B2 discloses a kind of magnetostriction/piezocell, and piezoelectric is sticked on the magnetostrictive material, and when magnetic field on every side changed, magnetostrictive material deformed, and makes piezoelectric because distortion produces electric energy.This battery must place the magnetic field of variation could produce electric energy, and because the magnetostrictive material deflection is little, the electric energy that battery produces is also less.
Summary of the invention
The purpose of this utility model is that piezoelectric generating device is made cell shapes, and the vibration mechanical energy of natural environment or human body is converted to electric energy, is stored in the energy-storage travelling wave tube, replaces the traditional chemical battery, is installed in the electronic equipment, is power devices.Because the vibration of environment and human body is available anywhere, and vibration causes the deflection of piezoelectric bigger, and piezoelectric vibration battery device energy output of the present utility model is big, applied range.
A kind of piezoelectric vibration battery device is characterized in that: the mass that comprises shell, is installed on some suspended wall plates of shell inboard, links to each other with shell by above-mentioned suspended wall plate; Wherein a plurality of parallel suspended wall plates are formed row in the above-mentioned suspended wall plate, and the multiple row cantilever slab is arranged around mass; 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; Also be equipped with in the above-mentioned shell and be used for the alternating current that piezoelectric element on the described cantilever slab produces is converted to galvanic rectifier, is used for the direct current of rectifier conversion is charged to the energy-storage travelling wave tube device, control charging voltage and electric current, and prevent that energy-storage travelling wave tube is to the charge controller of piezoelectric element reverse charging, the energy-storage travelling wave tube that is used for store electrical energy and outwards powers by electrode; All piezoelectric elements adopt parallel connection or series system to link to each other with above-mentioned rectifier, charge controller, energy-storage travelling wave tube successively; One end of above-mentioned shell links to each other as battery cathode with energy-storage travelling wave tube as anode, the other end with linking to each other with energy-storage travelling wave tube.
In the present piezo-electric generating patent, piezoelectric element is the two sides that monoblock is attached to cantilever beam or cantilever slab, the multi-disc piezoelectric patches is pasted on the two sides of cantilever slab in the utility model, reduced the single order crooked syntony frequency of cantilever slab on the one hand, also make piezoelectric element not fragile on the other hand, increased the useful life of device in use.Because the piezoelectric element limited amount that paste on single cantilever slab surface, area is less, and the electricity amount is also less, and the utility model posts a plurality of two sides parallel the forming a line of cantilever slab of multi-disc piezoelectric patches, individual column wrap mass is arranged, improved energy output and space availability ratio.
The unsettled placement of mass, when the shell of device vibrates with the vibration of environment, mass vibrates along the axis of oneself, force cantilever slab also to vibrate, surface generating period distortion, stick on the also generating period distortion of piezoelectric element on cantilever slab surface, because piezoelectric effect produces alternate electric energy.The alternate electric energy that piezoelectric element produces is transformed into direct current energy through rectifier, by charge controller, is stored in energy-storage travelling wave tube, and by two electrodes, outwards power supply.Electrode is installed on the crust of the device, can externally power easily.
All piezoelectric element serial or parallel connections connections on the cantilever slab in the device.If be connected in series, to compare with single piezoelectric element, the output voltage of two piezoelectric elements increases and is twice, and electric current is constant; If be connected in parallel, to compare with single piezoelectric element, the output current of two piezoelectric elements increases and is twice, and voltage is constant.Concrete connecting mode can be according to the demand decision of output electric weight.
Above-mentioned rectifier, charge controller and energy-storage travelling wave tube can all be installed on the mass.Both save the space, increased the quality of mass again.
Above-mentioned mass also can be connected with the bottom with cover top portion respectively by elastic rope or spring.When the Oscillation Amplitude of environment is excessive, can cause the Oscillation Amplitude of mass excessive, piezoelectric element is broken, energy output descends.For fear of the generation of this situation, link to each other the distance when length is longer than inactive state between mass and crust of the device with elastic rope or spring between mass and the crust of the device.When the ambient vibration amplitude was excessive, rope just played the effect of protection piezoelectric element.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation of piezoelectric element.
Fig. 2 is the front view of cantilever slab.
Fig. 3 is the vertical view of cantilever slab.
Fig. 4 is the cross sectional plan view of piezoelectric vibration battery.
Fig. 5 is the structural representation of piezoelectric vibration battery.
Fig. 6 is fixed in the partial enlarged drawing of mass for cantilever slab.
Fig. 7 is fixed in the local Fang Datu of crust of the device for cantilever slab.
Number in the figure title: 1, first electrode, 2, piezoelectric, 3, second electrode, 4, piezoelectric element 5, suspended wall plate, 6, mass, 7, shell, 8, anode, 9, elastic rope or spring, 10, rectifier, 11, charge controller, 12, energy-storage travelling wave tube, 13, battery cathode
Embodiment
Fig. 1 has described the structure of piezoelectric element, and piezoelectric element comprises piezoelectric 2, first electrode 1 and second electrode 3.Wherein first electrode 1 and second electrode 3 are coated with the two sides that is plated in piezoelectric, and piezoelectric 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. 2 and Fig. 3 have described the two sides and have pasted the front view and the vertical view of the cantilever slab structure of multi-disc piezoelectric element, at least one piezoelectric element 4 by glue-line stick on the cantilever slab 5.The crooked syntony frequency of cantilever slab is determined jointly by material, the physical dimension of cantilever slab, piezoelectric element.When vibration takes place in cantilever slab, stick on the stress that piezoelectric element on the cantilever slab will be subjected to alternation, on the electrode of piezoelectric element, produce electric charge and voltage, convert vibration mechanical energy to electric energy.If cantilever slab generation resonance, then the stress that is subjected to of piezoelectric element will reach maximum, and the electric weight that piezoelectric element produces also can reach maximum.
Fig. 4 and Fig. 5 have described the cross sectional plan view and the front view of piezoelectric vibration battery, and at least two cantilever slabs that are parallel to each other are formed row, and the multiple row cantilever slab is arranged around mass 6.Rectifier 10, charge controller 11 and energy-storage travelling wave tube 12 are installed on the mass.The two ends of mass link to each other with crust of the device by elastic rope or spring, and the distance when length is longer than inactive state between mass and crust of the device when the amplitude of crust of the device is excessive, can suppress the amplitude of mass, avoid piezoelectric element to damage.Positive source 8 and power cathode 13 are installed on the crust of the device.
The electric connecting mode of whole device is: all piezoelectric elements are connected to rectifier 10 with the serial or parallel connection mode, rectifier 10 is connected to charge controller 11, charge controller 11 is connected to energy-storage travelling wave tube 12, and energy-storage travelling wave tube is connected to positive source 8 and power cathode 13.
Fig. 6 has described cantilever slab 5 one ends and has been fixed on the mass 6, and an end rides in the groove of crust of the device 7.
Fig. 7 has described cantilever slab 5 one ends and has been fixed on the crust of the device 7, and an end rides in the groove of mass 6.The structure that Fig. 6 and Fig. 7 describe, when vibration takes place in mass, ordering about cantilever slab also vibrates, the surface of cantilever slab produces vibration deformation, the piezoelectricity that sticks on the cantilever slab surface also will produce vibration deformation, because piezoelectric effect, piezoelectric element converts vibration mechanical energy to alternate electric energy, outputs to rectifier 10; Rectifier 10 converts alternate electric energy to direct current energy, by charge controller 11, to energy-storage travelling wave tube 12 chargings; After energy-storage travelling wave tube 12 store electrical energy, outwards power by positive source 8 and power cathode 13.
It will be appreciated by those skilled in the art that, piezoelectric vibration battery of the present utility model, wherein, the material of cantilever slab, shape, size, amount of piezoelectric element on each cantilever slab, the connected mode of cantilever slab and mass, crust of the device, the electric connecting mode of piezoelectric element can be adjusted as the case may be.Piezoelectric can be made by one of piezoelectric monocrystal, piezoelectric ceramic, piezopolymer, piezo-electricity composite material or its combination.
Though above literal has been described the utility model with reference to certain embodiments and example of the present utility model, the utility model is not limited to embodiment described above.According to know-why of the present utility model, those of ordinary skills make amendment and are out of shape with reference to above-mentioned know-why embodiment and all belong to protection range of the present utility model.
Piezoelectric 2 is that one of piezoelectric monocrystal, piezoelectric ceramic, piezopolymer, piezo-electricity composite material or several combinations of its kind are made in the above-mentioned piezoelectric element.
Last energy-storage travelling wave tube 12 is rechargeable battery or electric capacity.
Claims (5)
1. piezoelectric vibration battery device is characterized in that:
The mass (6) that comprises shell (7), is installed on some suspended wall plates (5) of shell inboard, links to each other with shell by above-mentioned suspended wall plate;
A plurality of parallel suspended wall plates are formed row in the above-mentioned suspended wall plate, and the multiple row cantilever slab is arranged around mass;
Above-mentioned suspended wall plate two sides all is pasted with a slice piezoelectric element (4) at least; Above-mentioned piezoelectric element is made up of first electrode (1), piezoelectric (2), second electrode (3); Also be equipped with in the above-mentioned shell (7) and be used for the alternating current that piezoelectric element on the described cantilever slab produces is converted to galvanic rectifier, is used for the direct current of rectifier conversion is charged to the energy-storage travelling wave tube device, control charging voltage and electric current, and prevent that energy-storage travelling wave tube is to the charge controller of piezoelectric element reverse charging, the energy-storage travelling wave tube that is used for store electrical energy and outwards powers by electrode; All piezoelectric elements adopt parallel connection or series system to link to each other with above-mentioned rectifier (10), charge controller (11), energy-storage travelling wave tube (12) successively;
One end of above-mentioned shell (7) links to each other as battery cathode (13) with energy-storage travelling wave tube (12) as anode (8), the other end with linking to each other with energy-storage travelling wave tube (12).
2. piezoelectric vibration battery device according to claim 1 is characterized in that: above-mentioned rectifier (10), charge controller (11) and energy-storage travelling wave tube (12) all are installed on the mass.
3. piezoelectric vibration battery device according to claim 1 is characterized in that: above-mentioned mass (6) is connected with the bottom with shell (7) top respectively by elastic rope or spring (9).
4. piezoelectric vibration battery device according to claim 1 is characterized in that: described cantilever slab (5) one ends are fixed on the shell (7), and the other end rides in the groove of mass (6); Or an end of cantilever slab (5) is fixed on the mass (6), and the other end rides in the groove of shell (7).
5. piezoelectric vibration battery device according to claim 1 is characterized in that: energy-storage travelling wave tube (12) is rechargeable battery or electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201734245U CN201904739U (en) | 2010-04-27 | 2010-04-27 | Piezoelectric vibration battery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201734245U CN201904739U (en) | 2010-04-27 | 2010-04-27 | Piezoelectric vibration battery device |
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| CN201904739U true CN201904739U (en) | 2011-07-20 |
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| CN2010201734245U Expired - Lifetime CN201904739U (en) | 2010-04-27 | 2010-04-27 | Piezoelectric vibration battery device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860260A (en) * | 2010-04-27 | 2010-10-13 | 边义祥 | Piezoelectric vibration battery device |
| CN102710169A (en) * | 2012-06-01 | 2012-10-03 | 浙江师范大学 | Suspended vibration energy harvester based on multi-piezoelectric oscillator series-connection |
| CN102801203A (en) * | 2012-09-03 | 2012-11-28 | 桂林电子科技大学 | Piezoelectric power-generation charger |
| CN102801361A (en) * | 2012-09-01 | 2012-11-28 | 浙江师范大学 | Rotary piezoelectric generator for rail vehicle shafting monitoring system |
| CN103117677A (en) * | 2013-02-03 | 2013-05-22 | 苏州市职业大学 | Piezoelectric energy harvesting device |
| CN103312214A (en) * | 2013-05-29 | 2013-09-18 | 昆山攀特电陶科技有限公司 | Row type pressure energy collecting device |
| TWI482417B (en) * | 2013-04-22 | 2015-04-21 | Univ Nat Sun Yat Sen | Energy-recycling device |
| CN105743201A (en) * | 2016-02-26 | 2016-07-06 | 江苏物联网研究发展中心 | Vibration-type rechargeable battery |
| CN105890509A (en) * | 2016-04-08 | 2016-08-24 | 南阳师范学院 | Vibration energy-based underground coal preparation device chamber bottom plate displacement wireless monitoring system |
| CN106913005A (en) * | 2017-05-02 | 2017-07-04 | 江南大学 | It is a kind of with light-emitting device with car crash helmet |
| CN107086651A (en) * | 2017-06-15 | 2017-08-22 | 吉林大学 | A kind of drawer formula vibration prisoner can battery |
| CN111779789A (en) * | 2020-06-05 | 2020-10-16 | 长江大学 | Piezoelectric energy-absorbing damper |
| CN112117932A (en) * | 2020-09-02 | 2020-12-22 | 广州大学 | Power generation device and health monitoring equipment using same |
-
2010
- 2010-04-27 CN CN2010201734245U patent/CN201904739U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860260A (en) * | 2010-04-27 | 2010-10-13 | 边义祥 | Piezoelectric vibration battery device |
| CN102710169A (en) * | 2012-06-01 | 2012-10-03 | 浙江师范大学 | Suspended vibration energy harvester based on multi-piezoelectric oscillator series-connection |
| CN102710169B (en) * | 2012-06-01 | 2015-09-23 | 浙江师范大学 | Based on the suspension type vibration energy accumulator of multiple pressure electric tachometer indicator series connection |
| CN102801361B (en) * | 2012-09-01 | 2015-06-10 | 浙江师范大学 | Rotary piezoelectric generator for rail vehicle shafting monitoring system |
| CN102801361A (en) * | 2012-09-01 | 2012-11-28 | 浙江师范大学 | Rotary piezoelectric generator for rail vehicle shafting monitoring system |
| CN102801203A (en) * | 2012-09-03 | 2012-11-28 | 桂林电子科技大学 | Piezoelectric power-generation charger |
| CN103117677A (en) * | 2013-02-03 | 2013-05-22 | 苏州市职业大学 | Piezoelectric energy harvesting device |
| TWI482417B (en) * | 2013-04-22 | 2015-04-21 | Univ Nat Sun Yat Sen | Energy-recycling device |
| CN103312214A (en) * | 2013-05-29 | 2013-09-18 | 昆山攀特电陶科技有限公司 | Row type pressure energy collecting device |
| CN103312214B (en) * | 2013-05-29 | 2015-12-02 | 昆山攀特电陶科技有限公司 | Row's formula pressure is adopted can device |
| CN105743201A (en) * | 2016-02-26 | 2016-07-06 | 江苏物联网研究发展中心 | Vibration-type rechargeable battery |
| CN105890509A (en) * | 2016-04-08 | 2016-08-24 | 南阳师范学院 | Vibration energy-based underground coal preparation device chamber bottom plate displacement wireless monitoring system |
| CN106913005A (en) * | 2017-05-02 | 2017-07-04 | 江南大学 | It is a kind of with light-emitting device with car crash helmet |
| CN107086651A (en) * | 2017-06-15 | 2017-08-22 | 吉林大学 | A kind of drawer formula vibration prisoner can battery |
| CN111779789A (en) * | 2020-06-05 | 2020-10-16 | 长江大学 | Piezoelectric energy-absorbing damper |
| CN111779789B (en) * | 2020-06-05 | 2022-02-18 | 长江大学 | Piezoelectric energy-absorbing damper |
| CN112117932A (en) * | 2020-09-02 | 2020-12-22 | 广州大学 | Power generation device and health monitoring equipment using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110720 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |