CN203747516U - Energy storage device based on piezoelectric material - Google Patents
Energy storage device based on piezoelectric material Download PDFInfo
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- CN203747516U CN203747516U CN201420094965.7U CN201420094965U CN203747516U CN 203747516 U CN203747516 U CN 203747516U CN 201420094965 U CN201420094965 U CN 201420094965U CN 203747516 U CN203747516 U CN 203747516U
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- piezoelectric
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- energy storage
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- 238000004146 energy storage Methods 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 title abstract description 6
- 239000004020 conductor Substances 0.000 claims abstract description 39
- 230000006698 induction Effects 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims description 52
- 238000012545 processing Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000010409 thin film Substances 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 12
- 238000005520 cutting process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Classifications
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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
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model discloses an energy storage device based on piezoelectric material. An electrical conductor is attached to the surface of a piezoelectric thin film; a magnet is arranged on the surface of the piezoelectric thin film or near the piezoelectric thin film; the placing direction of the conductor and the magnetic induction line of the magnet form a certain angle to enable the conductor to cut the magnetic induction line in the case of shaking or moving to generate electrical energy; and the piezoelectric thin film can also generate electrical energy due to self deformation. An energy storage element is used for storing the above electrical energy, and the kinetic energy to electrical energy conversion efficiency is higher than when piezoelectric material is purely adopted. The energy storage device based on piezoelectric material can be applied to a power supply module of a wearable electronic product, and the problem that the power in the electronic product is limited can be effectively solved. The energy storage device based on piezoelectric material is energy-saving, environmental friendly, easy in popularization and application, and particularly applied to a sporty wearable electronic product.
Description
Technical field
The utility model relates to a kind of electronic product, is specially a kind of energy storage device based on piezoelectric for Wearable electronic product.
Background technology
Nearly 2 years, wearable product presented eruptive growth, from the intelligent watch taking Galaxy Gear as representative to the sport health wrist strap taking Jawbone UP as representative etc., had greatly facilitated daily life.But because the battery capacity of wearable device is limited, its effective time, between several hours to several days, needs periodic charge just can maintain the continuous running of equipment.Also there is same problem in the electronic products such as mobile phone.
People inevitably will move in daily life, as walking etc.If the kinetic energy in this process can convert electric energy to and be stored, the operating time of miniaturized electronics will be extended greatly, such as automation table etc.Automation table is generally made up of autoplugger (weight), reverse wheel, reducing gear, automatic great wheel etc.Autoplugger is screwed on the autoplugger axle of center, under the effect of external force, it drives reverse wheel around central rotation, commutation axle tooth promotes again reducing gear and rotates, reducing gear promotes automatic great wheel, automatically great wheel engages with big click wheel tooth, makes a tooth of a tooth of big click wheel and rotates and upper.Full automatic watch is that automatic top rotates and can go up bar to either direction.But, this class methods complexity, high to mechanical part requirement, corresponding cost is also very high.
Meanwhile, the motion of human body may not have permanent regularity.Such as, even the motions such as walking or running, also may be because the speed of speed etc. is that frequency changes occurring all the time.In other words it is unrealistic that, the resonance of dependence characteristic frequency carrys out switching energy possibility.The BOLT product of MicroGen company of the U.S. is developed based on products such as 100Hz, 120Hz and 600Hz according to different characteristic frequency.These products are all improper for the application taking human motion as considering.The frequency of human locomotion and running generally respectively 1-2 step/second and 3-9 step/second etc., but all far below the fixed frequency of BOLT product.The microgenerator (parameter frequency increases generator, Parametric Frequency Increased Generators, PFIGs) of Univ Michigan-Ann Arbor USA research and development in 2010 is directed to random vibrations.The method is called oneself the electric energy that can produce 10-100 microwatt.But this energy is still inadequate for driving current wearable device.
Product in above-mentioned two examples is all realized based on piezoelectric membrane.Can there is deformation due to vibrations in piezoelectric, this deformation meeting produces a voltage difference, reaches by collecting electromotive force the object that gathers electric energy.In general, the amplitude of vibrations is larger, and the strain of piezoelectric is larger, i.e. the electromotive force of its generation is larger; What similarly amplitude occurred is more frequent, and its collectable electric energy is also more.But in current the above embodiments, the general frequency all producing based on normal vibrations, lower electric energy that can produce of this situation is limited, the electronic equipment that cannot drive current circuit to become increasingly complex.And two-dimensional directional has often only been considered in the deformation of these films, as vertical tremor, be difficult to accurate seizure for the motion of other directions.
Utility model content
Technical purpose of the present utility model is defect or the deficiency existing for prior art, and the better energy storage device based on piezoelectric of a kind of energy storage efficiency is provided.
For realizing above-mentioned technical purpose, the technical scheme that the utility model provides is:
Based on an energy storage device for piezoelectric, be provided with piezoelectric membrane and energy-storage units, it is characterized in that, also comprise following composition member:
A) conductor and magnet unit, described conductor is attached to piezoelectric membrane surface, angled with the magnetic induction line of magnet, can do to greatest extent the motion of cutting magnetic induction line while making it shake (or vibration);
B) signal processing unit, the output of piezoelectric membrane is connected with the input of signal processing circuit unit, and the lead-in wire that described conductor dbus is crossed two ends is connected with signal processing circuit unit input;
C) control circuit and driving power, described driving power is connected with signal processing circuit unit or energy-storage units circuit, to signal processing unit or energy-storage units output driving current; Control circuit is connected with driving power circuit, controls the break-make of driving power;
The output of described signal processing circuit unit is connected with the input of energy-storage units circuit, the signal processing such as the signal of telecommunication that can produce conductor cutting magnetic induction line by signal processing unit, the detection of signal of telecommunication travel direction, filtering and the stack that piezoelectric membrane produces, the energy storage efficiency of raising energy-storage units.
The output fixed installation of described piezoelectric membrane, other end or the side of piezoelectric membrane are free end, and it can be swung in vibrations (or vibration), promote the motion of conductor cutting magnetic induction line.
As preferably, described conductor is set to strip or bar-shaped, is provided with an above conductor on piezoelectric membrane.The material of conductor can be selected the good conductor such as copper, aluminium metal material, and piezoelectric membrane can adopt piezoelectric polyvinylidene fluoride PVDF polymeric membrane etc.
Further, this device can arrange multiple piezoelectric membranes, and each piezoelectric membrane is all furnished with corresponding conductor and magnet unit.And preferred, described multiple piezoelectric membranes at least comprise two above piezoelectric membranes of putting by different axial directions, for example, horizontal, longitudinal and vertical three axially on (be X, Y, Z axis to), piezoelectric membrane and supporting conductor, magnet etc. are all set.
Above-mentioned energy storage device can be arranged in the power module circuitry of Wearable electronic product, and the kinetic energy that human motion is produced is converted to electric energy, for the power supply of electronic product, extends the continuous working period of electronic product.
The electric energy of the utility model collection comprises two aspects of electromotive force that electromotive force that piezoelectric membrane self deformation produces and piezoelectric membrane upper conductor cutting magnetic induction answer line to produce, kinetic energy is high to the transformation efficiency of electric energy, changing effect is good, and method is easy to implement, apparatus structure is succinct, is easy to manufacture, and is convenient to promote the use of, be particularly useful for the Wearable electronic product of sports type, environmental protection and energy saving.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the orientation structural representation in piezoelectric membrane, conductor and magnetic field.
In upper figure, 1-control circuit, 2-piezoelectric membrane, 3-magnet unit, 4-signal processing unit, 5-energy-storage units, 6-metallic conductor.
Embodiment
For further illustrating scheme principle of the present utility model and technique effect, below in conjunction with drawings and the specific embodiments, the utility model is described further.
A kind of energy storage device based on piezoelectric as shown in Figure 1, comprises control circuit 1, piezoelectric membrane 2, magnet 3, signal processing unit 4, energy-storage units 5, metallic conductor 6 and magnet.
Described metallic conductor 6 adopts metal bar or bonding jumper, is attached to the surface (between metallic conductor and piezoelectric membrane, nothing is electrically connected) of piezoelectric membrane 2.Example rectangle piezoelectric membrane 2 surfaces are as shown in Figure 2 provided with some parallel metallic conductors 6.
The setting party of metallic conductor 6 on piezoelectric membrane 2 be to angled with the magnetic induction line of magnet, cutting magnetic induction line while making its motion, taking perpendicular to magnet N level-S level line as good.And magnet can adopt the conventional shape such as bar shaped or U-shaped, be attached to piezoelectric membrane 2 surfaces or be arranged near the position of piezoelectric membrane 2.
The output of piezoelectric membrane 2 is connected with the input of signal processing unit 4 circuit, and described metallic conductor 6 two ends are connected with signal processing unit 4 circuit input ends by lead-in wire.The output of described signal processing unit 4 circuit is connected with the input of energy-storage units 5 circuit.The circuit module that described energy-storage units 5 is generally taking energy-storage travelling wave tubes such as super capacitors as core component.
The output of described piezoelectric membrane 2 is fixed in energy storage device, and other end or the side of piezoelectric membrane 2 are made as free end.In the time that vibrations or motion occur energy storage device, the free-ended amplitude of fluctuation of piezoelectric membrane 2 is larger, thus magnet can be arranged near the free-ended side of piezoelectric membrane 2, and metallic conductor 6 is also arranged near free-ended position as far as possible.As shown in Figure 2, the bottom of piezoelectric membrane 2 is fixed, and upper end is free end, thus film free end can only be to the left side in figure or right side swing, in figure, dotted portion is that free end turns over the signal of 180 °.There is magnetic field in piezoelectric membrane 2 tops, in the time that film upper end swings, due to metallic conductor 6 cutting magnetic induction lines, on each metallic conductor 6, all can produce induced current i not of uniform size but that direction is consistent, by the processing of signal processing unit 4, these current signal stacks can be obtained to total current.
Consider the uncertainty of energy storage device vibrations direction, preferably, can piezoelectric membrane 2 and supporting magnet, metallic conductor 6 etc. be all set on axially at X, Y, Z tri-, on all around and above-below direction, all have the piezoelectric membrane (Figure 2 shows that the piezoelectric membrane that can swing) with swing condition.
Simultaneously, in the time that piezoelectric membrane 2 swings, film itself can produce deformation, produces the character of voltage based on the deformation of piezoelectric meeting own, piezoelectric membrane 2 and metallic conductor 6 these two electric energy that produce in vibrations, after the processing of signal processing unit 4, can be stored in the energy storage devices such as electric capacity.The function of described signal processing unit 4 comprises the conditioning such as identification and filtering to multi-dimensional direction electromotive force signal, and stack.
The utility model energy storage device itself needs certain external power source, for driving signal processing unit 4 and energy-storage units 5 etc.This external drive power supply is controlled its break-make by control circuit 1.Simultaneously, also can further arrange and detect the whether vibration-sensing device in vibrating state of piezoelectric membrane 2, metallic conductor 6 or electronic product body (be interpreted as comprising energy storage device or do not comprise all can), when control circuit 1 detects piezoelectric membrane 2, metallic conductor 6 or electronic product body in non-vibrating state and exceeds after certain hour value, control circuit 1 cuts off the driving power of energy-storage units 5 circuit or signal processing unit 4 circuit, with energy savings consumption.
When above-mentioned energy storage device is for after Wearable electronic product, in human motion, it is electric energy by the kinetic transformation of multi-dimensional direction motion that the utility model energy storage device can utilize multiaxis to answer the metallic conductor of line to piezoelectric membrane and cutting magnetic induction, environmental protection and saving, and effectively solve the self-powered limited problem of electronic product.
More than show and described general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand, the utility model is not restricted to the described embodiments, that in above-described embodiment and specification, describes just illustrates principle of the present utility model, is not departing under the prerequisite of the utility model spirit and scope, and the utility model also has various changes and modifications.The claimed scope of the utility model is defined by appending claims, specification and equivalent thereof.
Claims (8)
1. the energy storage device based on piezoelectric, is provided with piezoelectric membrane and energy-storage units, it is characterized in that, also comprises following composition member:
A) conductor and magnet unit, described conductor is attached to piezoelectric membrane surface, with angled the putting of magnetic induction line of magnet;
B) signal processing unit, the output of piezoelectric membrane is connected with the input of signal processing circuit unit, and the lead-in wire that described conductor dbus is crossed two ends is connected with signal processing circuit unit input;
C) control circuit and driving power, described driving power is connected with signal processing circuit unit or energy-storage units circuit, to signal processing unit or energy-storage units output driving current; Control circuit is connected with driving power circuit, controls the break-make of driving power;
The output of described signal processing circuit unit is connected with the input of energy-storage units circuit; The output fixed installation of described piezoelectric membrane, other end of piezoelectric membrane or side are free end.
2. a kind of energy storage device based on piezoelectric according to claim 1, is characterized in that, described conductor is strip or bar-shaped, is provided with an above conductor on piezoelectric membrane.
3. a kind of energy storage device based on piezoelectric according to claim 2, is characterized in that, between many conductors, is parallel to each other.
4. according to a kind of energy storage device based on piezoelectric described in claim 1,2 or 3, it is characterized in that, described conductor is metal material.
5. a kind of energy storage device based on piezoelectric according to claim 1, is characterized in that, be provided with multiple piezoelectric membranes, each piezoelectric membrane is all furnished with corresponding magnet unit and conductor.
6. a kind of energy storage device based on piezoelectric according to claim 5, is characterized in that, described multiple piezoelectric membranes at least comprise two above piezoelectric membranes of putting by different axial directions.
7. a kind of energy storage device based on piezoelectric according to claim 6, is characterized in that, horizontal, longitudinal and vertical three be equipped with piezoelectric membrane on axially.
8. according to a kind of energy storage device based on piezoelectric described in any one in claim 1-3 or 5-7, it is characterized in that, this energy storage device is arranged in the power module circuitry of Wearable electronic product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094965.7U CN203747516U (en) | 2014-03-04 | 2014-03-04 | Energy storage device based on piezoelectric material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094965.7U CN203747516U (en) | 2014-03-04 | 2014-03-04 | Energy storage device based on piezoelectric material |
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| Publication Number | Publication Date |
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| CN203747516U true CN203747516U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420094965.7U Expired - Lifetime CN203747516U (en) | 2014-03-04 | 2014-03-04 | Energy storage device based on piezoelectric material |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795149A (en) * | 2014-03-04 | 2014-05-14 | 镇江博联电子科技有限公司 | Energy accumulation method and device based on piezoelectric materials for wearable electronic product |
| CN105533878A (en) * | 2016-01-14 | 2016-05-04 | 南京航空航天大学 | Waistband with piezoelectric energy collecting function |
-
2014
- 2014-03-04 CN CN201420094965.7U patent/CN203747516U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795149A (en) * | 2014-03-04 | 2014-05-14 | 镇江博联电子科技有限公司 | Energy accumulation method and device based on piezoelectric materials for wearable electronic product |
| CN103795149B (en) * | 2014-03-04 | 2016-11-02 | 镇江博联电子科技有限公司 | Energy storage method based on piezoelectric and device for Wearable electronic product |
| CN105533878A (en) * | 2016-01-14 | 2016-05-04 | 南京航空航天大学 | Waistband with piezoelectric energy collecting function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING LANMEI NETWORK TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHENJIANG BOLIAN ELECTRONIC TECHNOLOGY CO., LTD. Effective date: 20150505 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 212003 ZHENJIANG, JIANGSU PROVINCE TO: 211100 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150505 Address after: Jiangning District of Nanjing City, Jiangsu province 211100 Dongshan Street East New Road No. 15 Oujiang building room 529 Patentee after: NANJING BLUEBERRY NETWORK TECHNOLOGY Co.,Ltd. Address before: 212003 Zhenjiang City, Jiangsu Province Road Jingkou Jingkou District No. 88 University Technology Park Room 310 Patentee before: ZHENJIANG BOLIAN ELECTRONIC SCIENCE & TECHNOLOGY CO.,LTD. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151216 Address after: Jingkou District Zhenjiang City, Jiangsu province 212003 Jiefang Road Pioneering Park Room 5201 No. 18 Patentee after: ZHENJIANG BOLIAN ELECTRONIC SCIENCE & TECHNOLOGY CO.,LTD. Address before: Jiangning District of Nanjing City, Jiangsu province 211100 Dongshan Street East New Road No. 15 Oujiang building room 529 Patentee before: NANJING BLUEBERRY NETWORK TECHNOLOGY Co.,Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160129 Address after: 201203 Shanghai City, Pudong New Area Chinese Jing (Shanghai) Free Trade Zone No. 351 Building No. 2 room A673-21 Patentee after: SHANGHAI CHUSHAN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: Jingkou District Zhenjiang City, Jiangsu province 212003 Jiefang Road Pioneering Park Room 5201 No. 18 Patentee before: ZHENJIANG BOLIAN ELECTRONIC SCIENCE & TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address |
Address after: 518000 Room 302, building A2, Guangming Science Park, China Merchants Bureau, sightseeing Road, Fenghuang community, Fenghuang street, Guangming District, Shenzhen, Guangdong Province Patentee after: Chushan (Shenzhen) New Energy Technology Co.,Ltd. Address before: Room a673-21, building 2, 351 GuoShouJing Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201203 Patentee before: SHANGHAI CHUSHAN ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |