CN204190651U - The back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type - Google Patents
The back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type Download PDFInfo
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- CN204190651U CN204190651U CN201420738296.2U CN201420738296U CN204190651U CN 204190651 U CN204190651 U CN 204190651U CN 201420738296 U CN201420738296 U CN 201420738296U CN 204190651 U CN204190651 U CN 204190651U
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Abstract
The utility model relates to the back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type.The utility model is that supporting plate connects base, the stiff end connection bracket plate of back-shaped cantilever beam, in the middle of back-shaped cantilever beam, every section is equipped with chute, be slidably connected in every section of chute a mass, piezoelectric patches is covered on a circle of nearly back-shaped cantilever beam stiff end, and the electrode surface of piezoelectric patches is connected to power conversion and memory circuit by wire.The utility model overcomes that current piezoelectric generating device energy output is little, and generating capacity is limited, and the vibration frequency of piezoelectric vibrator is unadjustable, thus can only be better to the extraneous vibration assimilation effect of a certain frequency, the defects such as range of application is narrower.Cantilever beam is made back-shaped by the utility model, in vortex-like structure, increases the length of cantilever beam, increase and paste piezoelectric patches quantity, improve energy output, regulate the mass that is positioned on back-shaped cantilever beam and regulate fundamental resonance frequency, realizing carrying out collection of energy to the ambient vibration of different vibration frequency.
Description
Technical field
The utility model relates to a kind of piezoelectric generating device, belongs to piezo-electric generating technical field, particularly relates to the back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type.
Background technology
Piezoelectric generating device has that structure is simple, pollution-free, cost is low and the life-span almost advantage such as unlimited, utilize the direct piezoelectric effect of piezoelectric ceramic, can convert the mechanical energy vibrated in surrounding environment to electric energy, the research utilizing piezoelectric to carry out collection of energy in recent years gets more and more people's extensive concerning.
Before the present utility model, current piezoelectric generating device is all adopt cantilever-fashion piezoelectric oscillator mostly, by the restriction of its rigidity, it is very long that the length of cantilever beam can not be done, and thus its energy output is little, generating capacity is limited, and its mass is fixed on the free end of cantilever beam, the vibration frequency of piezoelectric vibrator is unadjustable, thus can only be better to the extraneous vibration assimilation effect of a certain frequency, poor to the vibrational energy assimilation effect of other frequency, range of application is narrower.
Utility model content
The purpose of this utility model is just to overcome above-mentioned defect, develops the back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type.
The technical solution of the utility model is:
The back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type, supporting plate connects base, its technical characteristics is the stiff end connection bracket plate of back-shaped cantilever beam, in the middle of back-shaped cantilever beam, every section is equipped with chute, be slidably connected in every section of chute a mass, piezoelectric patches is covered on a circle of nearly back-shaped cantilever beam stiff end, and the electrode surface of piezoelectric patches is connected to power conversion and memory circuit by wire.
Described mass is provided with a screw.
Described cantilever beam becomes back-shaped, in vortex-like structure.
The utility model novel structure, the back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type, solve existing cantilever beam piezoelectric power generating device energy output little, vibration frequency is unadjustable, can only absorb, the defect that range of application is narrower to the extraneous vibration of a certain frequency.This piezoelectric generating device is back-shaped by being made by cantilever beam, in vortex-like structure, not only effectively can increase the length of cantilever beam, increase the quantity of pasting piezoelectric patches, thus raising energy output, the mass be positioned on back-shaped cantilever beam can also be regulated, and then regulate the fundamental resonance frequency of piezoelectric generating device, thus realize carrying out collection of energy to the ambient vibration of different vibration frequency, with vibrational energy changeable in conforming, substantially increase range of application and the energy conversion efficiency of piezoelectric generating device, there is structure simple, energy output is large, energy conversion efficiency is high, the advantages such as strong adaptability.
Accompanying drawing explanation
Fig. 1---overall structure schematic diagram of the present utility model.
In figure, each label represents that corresponding component names is as follows:
Supporting plate 1, piezoelectric patches 2, back-shaped cantilever beam 3, chute 4, mass 5, screw 6, base 7.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type, comprises supporting plate 1, piezoelectric patches 2, back-shaped cantilever beam 3, chute 4, mass 5, screw 6 and base 7.
The stiff end connection bracket plate 1 of back-shaped cantilever beam 3, supporting plate 1 connects base 7.Every section, the centre of back-shaped cantilever beam 3 is equipped with chute 4, all has a mass 5 in every section of chute 4, mass 5 is provided with a screw 6, and mass 5 can move freely in chute 4, and carrys out positioning and locking by the screw 6 on it.On a circle of back-shaped cantilever beam 3 stiff end, be equipped with piezoelectric patches 2, piezoelectric patches 2 is covered on a side of back-shaped cantilever beam 3 by conductive adhesive layer, and the electrode surface of each piezoelectric patches 2 is connected to power conversion and memory circuit by wire.Back-shaped cantilever beam 3 is made into back-shaped, in vortex-like structure.
During utility model works, first according to the vibration frequency in current environment, the mass 5 in slip chute 4 to a certain correct position, and is tightened fixing by screw 6.When resonance frequency close to this piezoelectric generating device of the vibration frequency of external environment, will make back-shaped cantilever beam 3 that resonance occurs, the piezoelectric patches 2 pasted thereon is also out of shape thereupon, thus generation direct piezoelectric effect generates electricity, finally by the electrode surface on piezoelectric patches 2, stored energy and conversion equipment is connected to, for load by wire.Because whole device has multiple adjustable type mass, be placed on diverse location and fix and just can receive different frequency, thus make the fundamental frequency adjustable extent of whole piezoelectric generating device very wide, the various vibrational energies in external environment can be absorbed, substantially increase range of application and the energy conversion efficiency of piezoelectric generating device, there is the advantages such as structure is simple, energy output is large, energy conversion efficiency is high, strong adaptability.
The utility model is not limited to above-described embodiment; such as increase the hop count of back-shaped cantilever beam and respective slide slots and mass; multiple piezoelectric patches is pasted in the upper and lower surface of back-shaped beam; also be fine; on the basis of technical scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents, and do not need performing creative labour just can make some to some technical characteristics wherein and replace and distortion, these are replaced and are out of shape all in protection range of the present utility model.
Claims (3)
1. the back-shaped piezoelectric generating device of fundamental frequency adjustable type, supporting plate connects base, it is characterized in that the stiff end connection bracket plate of back-shaped cantilever beam, cantilever beam becomes back-shaped, in the middle of back-shaped cantilever beam, every section is equipped with chute, be slidably connected in every section of chute a mass, and piezoelectric patches is covered on a circle of nearly back-shaped cantilever beam stiff end, and the electrode surface of piezoelectric patches is connected to power conversion and memory circuit by wire.
2. the back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type according to claim 1, is characterized in that described mass is provided with a screw.
3. the back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type according to claim 1, is characterized in that described cantilever beam is vortex-like structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738296.2U CN204190651U (en) | 2014-11-26 | 2014-11-26 | The back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738296.2U CN204190651U (en) | 2014-11-26 | 2014-11-26 | The back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190651U true CN204190651U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738296.2U Expired - Fee Related CN204190651U (en) | 2014-11-26 | 2014-11-26 | The back-shaped piezoelectric generating device of a kind of fundamental frequency adjustable type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190651U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418469A (en) * | 2018-03-12 | 2018-08-17 | 佛山市顺德区中山大学研究院 | A kind of piezoelectric type vibration energy collecting device |
| CN108418470A (en) * | 2018-03-14 | 2018-08-17 | 佛山市顺德区中山大学研究院 | Piezoelectric energy collector |
| CN108872069A (en) * | 2018-06-28 | 2018-11-23 | 三思永恒科技(浙江)有限公司 | A kind of attachment tension gauge |
| CN110071661A (en) * | 2019-06-06 | 2019-07-30 | 浙江工业大学 | One kind having low frequency and broadband multimode state array energy collecting device |
-
2014
- 2014-11-26 CN CN201420738296.2U patent/CN204190651U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418469A (en) * | 2018-03-12 | 2018-08-17 | 佛山市顺德区中山大学研究院 | A kind of piezoelectric type vibration energy collecting device |
| CN108418469B (en) * | 2018-03-12 | 2019-07-09 | 佛山市顺德区中山大学研究院 | A kind of piezoelectric type vibration energy collecting device |
| CN108418470A (en) * | 2018-03-14 | 2018-08-17 | 佛山市顺德区中山大学研究院 | Piezoelectric energy collector |
| CN108872069A (en) * | 2018-06-28 | 2018-11-23 | 三思永恒科技(浙江)有限公司 | A kind of attachment tension gauge |
| CN108872069B (en) * | 2018-06-28 | 2021-05-04 | 三思永恒科技(浙江)有限公司 | Adhesive force detector |
| CN110071661A (en) * | 2019-06-06 | 2019-07-30 | 浙江工业大学 | One kind having low frequency and broadband multimode state array energy collecting device |
| CN110071661B (en) * | 2019-06-06 | 2024-04-30 | 浙江工业大学 | Multi-mode array type energy collection device with low frequency and broadband |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20171126 |