CN109980992A - A kind of multi-resonant vibrational energy acquisition device - Google Patents
A kind of multi-resonant vibrational energy acquisition device Download PDFInfo
- Publication number
- CN109980992A CN109980992A CN201711466278.8A CN201711466278A CN109980992A CN 109980992 A CN109980992 A CN 109980992A CN 201711466278 A CN201711466278 A CN 201711466278A CN 109980992 A CN109980992 A CN 109980992A
- Authority
- CN
- China
- Prior art keywords
- basal layer
- mass block
- intermediate plate
- layer
- vibrational energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002305 electric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
- H02N2/188—Vibration harvesters adapted for resonant operation
Abstract
The present invention discloses a kind of multi-resonant vibrational energy acquisition device, include: the beam-like that two panels or the above stratiform of two panels stack basal layer, one or more pieces be provided with the piezoelectric material and one or more mass block of output electrode, the piezoelectric material is arranged in the basal layer, the mass block is mounted on the upper surface or lower surface of the basal layer, and the mass block connection identical as at least one of adjacent two basal layer, one end of at least one basal layer is provided with the clip position for outside clamping.The present invention can have two to more resonance frequencies in a certain frequency domain, and the distribution and vibration performance of resonance frequency under multiple mode of oscillations can be arbitrarily adjusted by adjusting the method for structure and piezoelectric material installation site.
Description
Technical field
The present invention relates to environmental energies to acquire correlative technology field, especially a kind of multi-resonant vibrational energy acquisition device.
Background technique
In recent years, the environmental energy acquisition technique (Energy harvest ing) of Wireless Sensor Networks is closed
Note, its alternative traditional chemical battery solve the powerup issue of small electronic equipment.Wherein, vibrational energy is universal preservation in each
One of formula mechanical equipment, civil structure and human motion environmental energy compares solar energy, wind energy, electromagnetic radiation and the temperature difference,
Vibrational energy acquisition device have the characteristics that power density is higher, small, structure is influenced by weather simply easily be miniaturized, technology at
After ripe, it is expected to substitute chemical cell in wireless sensor network and is applied to Internet of Things, wearable electronic and implantation
Type medical energy converter and the energy, traffic, space flight and the fields such as military.
Piezoelectric type vibration electricity energy harvester is with structure is simple, output voltage is high, excellent without electromagnetic interference, Miniaturized etc.
Point.Currently, piezoelectric type energy acquisition device is mostly to acquire vibrational energy using the narrowband response under the intrinsic natural frequency of vibration of its structure
Amount, and the vibration in actual environment is usually broadband excitation, the distribution of vibrational energy has randomness, and the energy of narrow-band is adopted
Acquisition means are poor to the adaptability of such vibration source, lead to that energy acquisition is very insufficient, energy acquisition loss is big.In order to broadly
Vibrational energy is acquired, needs piezoelectric type acquisition device that there are multiple resonance frequencies in a certain smaller frequency domain.
The vibrational energy of different vibration sources can generally also be distributed in different frequency domains, and traditional multi-resonant acquisition device
Structure and rigid condition once it is determined that, both have specific resonance frequency, therefore for different vibration sources matching it is bad.It is logical
For often, the piezoelectric material of acquisition device should be bonded in underlying structure stress distribution maximum, at this time mechanical-electric coupling better performances.
But piezoelectric material is more crisp, and surface is coated with electrode, by that can not dismantle after the materials such as epoxy resin and base metal bonding, installs
Position is just fixed.If not changing the structure of acquisition device, only changed by changing clamping and the fixed equilateral boundary's condition in position
Become vibration frequency, distribution and the vibration performance for adjusting the resonance frequency of multiple mode of oscillations simultaneously first are relatively difficult, furthermore can
Lead to the change of the vibration shape, and then the stress distribution for influencing structure may cause although improving the matching with vibration source at this time
The position of piezoelectric material installation site and maximum stress distribution mismatches, the decline of mechanical-electric coupling performance.
Summary of the invention
Based on this, it is necessary to for the machinery and mechanical-electric coupling performance of distribution, the vibration of the multiple vibration frequencies of the prior art
With vibration source matching is bad and the fixed nonadjustable and technical problem of acquisition device structure, a kind of multi-resonant vibrational energy is provided
Measure acquisition device.
The present invention provides a kind of multi-resonant vibrational energy acquisition device, comprising: the beam that two panels or the above stratiform of two panels stack
The basal layer of shape, one or more pieces be provided with the piezoelectric material and one or more mass block of output electrode, the piezoresistive material
Material is arranged in the basal layer, and the mass block is mounted on the upper surface or lower surface of the basal layer, and described in adjacent two
Basal layer mass block connection identical as at least one, one end of at least one basal layer is provided with the clamping position for outside clamping
It sets.
It further, further include one or more that the mass block or the piezoelectric material are fixed on to the basal layer
A intermediate plate group.
Further, each intermediate plate group includes two intermediate plates being matched for clamping tightly.
Further, recessed portion is equipped among at least the one of each intermediate plate group intermediate plate.
Further, two intermediate plates of the intermediate plate group are separately positioned on above and below the mass block, institute
Mass block is stated to be placed in the recessed portion of the intermediate plate.
Further, the two intermediate plate groups clamp the both ends of the piezoelectric material respectively, and the piezoelectric material accommodates
In the recessed portion of the intermediate plate of the intermediate plate group.
Further, the basal layer includes successively the first basal layer and the second base of parallel stacking from the bottom up
The clip position is arranged in bottom, the first end of first basal layer, and the mass block includes the first mass block and the second matter
The of gauge block, the second end of first basal layer and the second basal layer above the second end of first basal layer
Two ends are connect with first mass block respectively, and second mass block is arranged on second basal layer.
Further, the basal layer include the third basal layer of successively parallel stacking from the bottom up, the 4th basal layer,
And the clip position is arranged in the 5th basal layer, the first end of the third basal layer, the mass block includes third quality
Block, the 4th mass block and the 5th mass block, the second end of the third basal layer and the second end in the third basal layer
The second end of 4th basal layer of top is connect with the third mass block respectively, the first end of the 4th basal layer and
The first end of the 5th basal layer above the first end of the 4th basal layer is connect with the 4th mass block respectively, in institute
It states and the 5th mass block is set in the second end of the 5th basal layer above the second end of the 4th basal layer.
Further, the basal layer include from the bottom up successively the 6th basal layer, the 7th basal layer of parallel stacking,
And the clip position is arranged in the 8th basal layer, the first end of the 7th basal layer, the mass block includes the 6th mass
Block, the 7th mass block, the 8th mass block and the 9th mass block, the second end of the 7th basal layer and in the 7th base
The second end of the 8th basal layer above the second end of bottom is connect with the 6th mass block respectively, the 7th basal layer
Middle part and the middle part of the 6th basal layer are connect with the 7th mass block respectively, at the middle part of the 8th basal layer
8th mass block is set, the bottom setting of the first end of the 6th basal layer below the first end of the 7th basal layer
9th mass block.
The present invention can have two to more resonance frequencies in a certain frequency domain, and can by adjusting structure and
The method of piezoelectric material installation site arbitrarily adjusts the distribution and vibration performance of resonance frequency under multiple mode of oscillations.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of multi-resonant vibrational energy acquisition device of one embodiment of the invention；
Fig. 2 is a kind of side schematic view of multi-resonant vibrational energy acquisition device of one embodiment of the invention；
Fig. 3 is a kind of structural schematic diagram of multi-resonant vibrational energy acquisition device of another embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of multi-resonant vibrational energy acquisition device of yet another embodiment of the invention；
Fig. 5 is the structural schematic diagram of basal layer of the present invention；
Fig. 6 is the structural schematic diagram of mass block of the present invention；
Fig. 7 is the structural schematic diagram of piezoelectric material of the present invention；
Fig. 8 is the structural schematic diagram of intermediate plate of the present invention；
Fig. 9 is the power output performance comparison schematic diagram of substrate layer number and narrowband acquisition device.
Specific embodiment
The present invention will be further described in detail in the following with reference to the drawings and specific embodiments.
It is as shown in Figure 1 a kind of structural schematic diagram of multi-resonant vibrational energy acquisition device of the present invention, comprising: two panels or two
The basal layer 11 for the beam-like that the above stratiform of piece stacks, 12, one or more pieces be provided with piezoelectric material 13, the Yi Jiyi of output electrode
Block or muti-piece mass block 14,15, the piezoelectric material 13 are arranged in the basal layer 11, and the mass block 14,15 is mounted on institute
The upper surface or lower surface of basal layer 11,12, and the mass block connection identical as at least one of adjacent two basal layer are stated, at least
One end of one basal layer is provided with the clip position 10 for outside clamping.
Specifically, as shown in figure 5, basal layer 11,12 is beam texture.One end of basal layer 11 is in 10 quilt of clip position
Clamping, is fixedly mounted on vibration source, forms cantilever beam structure.As shown in fig. 6, mass block 14,15 is preferably rectangular.Wherein,
Mass block 14 is mounted on 11 upper surface of basal layer, and the installation site of mass block can be moved arbitrarily.Basal layer 15 is in mass block 14
Upper surface, usually basal layer 11 and 12 can be parallel and head and the tail alignment, but also can according to need and be adjusted.Base
On bottom 12 also other basal layer can also be installed on mass block 15, be overlapped layer by layer with installation quality block 15.Above-mentioned overlapping
Mode is installed from the top of basal layer 11, and furthermore the lower surface of basal layer 11 can also be with installation quality block, under mass block
Surface can install other basal layer, overlap mode with it is be overlapped similar upwards.Since mass block has certain height, rise
To the effect of every layer of basal layer of fixation, every layer of basal layer can be seen as cantilever beam structure.At the same time, mass block has certain
Weight can play the role of adjusting resonance frequency according to the difference of quality position.
Maximum region, piezoresistive material as shown in Figure 7 are distributed by the available different base ply stress of modeling and analyzing
Material 13 is laminated structure.Piezoelectric material is provided with output electrode, it is preferable that is respectively arranged in the upper and lower surface of piezoelectric material
With the positive and negative electrode of load connection, mechanical oscillation are converted to electric energy and are output to load by piezoelectric material.Piezoelectric material can root
It is mounted on any position of basal layer 11, is also may be mounted on any position of other basal layers according to demand.
The present invention can have two to more resonance frequencies in a certain frequency domain, and can by adjusting structure and
The method of piezoelectric material installation site arbitrarily adjusts the distribution and vibration performance of resonance frequency under multiple mode of oscillations.
It in one of the embodiments, further include that the mass block or the piezoelectric material are fixed on the basal layer
One or more intermediate plate groups 16.
As shown in figure 8, each intermediate plate group 16 includes two intermediate plates 161 being matched for clamping tightly in one of the embodiments,.
Fixed intermediate plate occurs in pairs, to clamp basal layer, mass block or piezoelectric material.The clamping side of two intermediate plates
Formula is preferably arranged bolt hole 163 at intermediate plate both ends, is bolted.
Recessed portion is equipped among at least one intermediate plate 161 of each intermediate plate group in one of the embodiments,
162。
The recessed portion of indent can be embedded on basal layer, mass block or piezoelectric material among intermediate plate.
The two of the intermediate plate group 16 intermediate plates 161 are separately positioned on the mass block in one of the embodiments,
Above and below, the mass block is placed in the recessed portion of the intermediate plate.
The two intermediate plate groups 16 clamp the both ends of the piezoelectric material, and the pressure respectively in one of the embodiments,
Electric material 13 is accommodated in the recessed portion of the intermediate plate of the intermediate plate group.
An intermediate plate group 16 is respectively set at piezoelectric material both ends in the present embodiment, to clamp piezoelectric material 13.
The basal layer 11 that the clip position 10 is arranged in one of the embodiments, is main basal layer, the pressure
Electric material 13 is arranged on the main basal layer.
Due to the main basal layer of setting clip position, its stress is generally higher, and piezoelectric material is arranged the present embodiment
Main basal layer, to improve the transfer efficiency that mechanical oscillation are converted to electric energy.
The piezoelectric material 13 is close to the clip position 10 in one of the embodiments,.
Stress highest near clip position, the present embodiment piezoelectric material is arranged close to clip position, so that conversion effect
Highest.
As depicted in figs. 1 and 2, the basal layer includes successively parallel stacking from the bottom up in one of the embodiments,
The first basal layer 11 and the second basal layer 12, the clip position 10, institute is arranged in the first end of first basal layer 11
Stating mass block includes the first mass block 14 and the second mass block 13, the second end of first basal layer 11 and described the
The second end of the second basal layer 12 above the second end of one basal layer 11 is connect with first mass block 14 respectively, and described
Two mass blocks 15 are arranged on second basal layer 12.
The present embodiment acquisition device is clamped at position 10 and fixes, which includes two basal layers 11 and 12, includes
Two mass blocks 14 and 15, piezoelectric material 13 are fixed on the position near 11 clip position 10 of basal layer, and intermediate plate group 16 has altogether
Use four groups.
As shown in figure 3, the basal layer includes the successively third of parallel stacking from the bottom up in one of the embodiments,
The clamping position is arranged in the first end of basal layer 31, the 4th basal layer 32 and the 5th basal layer 33, the third basal layer 31
Set 30, the mass block includes third mass block 34, the 4th mass block 35 and the 5th mass block 36, the third basal layer 31
Second end and the second end of the 4th basal layer 32 above the second end of the third basal layer 31 respectively with the third
Mass block 34 connects, the first end of the 4th basal layer 32 and above the first end of the 4th basal layer 32 the
The first end of five basal layers 33 is connect with the 4th mass block 35 respectively, above the second end of the 4th basal layer 32
5th mass block 36 is set in the second end of the 5th basal layer 33.
The present embodiment acquisition device is clamped at position 30 and fixes, which includes three basal layers 31,32,33, packet
Containing three mass blocks 34,35,36, piezoelectric material 37 is fixed on the position near clamped 31 clip position 30 of basal layer,
Intermediate plate group 38 uses altogether five groups.
As shown in figure 4, the basal layer includes successively the 6 of parallel stacking from the bottom up in one of the embodiments,
The clamping position is arranged in the first end of basal layer 41, the 7th basal layer 42 and the 8th basal layer 43, the 7th basal layer 42
40 are set, the mass block includes the 6th mass block 44, the 7th mass block 45, the 8th mass block 46 and the 9th mass block 47, described
The second end of the second end of 7th basal layer 42 and the 8th basal layer 43 above the second end of the 7th basal layer 42
It is connect respectively with the 6th mass block 44, the middle part of the 7th basal layer 42 and the middle part of the 6th basal layer 41
It is connect respectively with the 7th mass block 45, the 8th mass block 46 is set at the middle part of the 8th basal layer 43, in institute
The 9th mass block 47 is arranged in the bottom for stating the first end of the 6th basal layer 41 below the first end of the 7th basal layer 42.
The present embodiment acquisition device is clamped at position 40 and fixes, which includes three basal layers 41,42,43, packet
Containing four mass blocks 44,45,46,47, piezoelectric material 48 is fixed on the position near clamped 42 clip position 40 of basal layer
It sets, intermediate plate group 49 uses altogether six groups.
Acquisition device in the present invention can also be arranged more basal layers, for example four basal layers, each basal layer are equal
Piezoelectric material can be arranged according to stress distribution.When vibration source change or vibrational energy distribution frequency domain change, Ke Yitong
Readjustment mass block is crossed, the position of piezoelectric patches or even basal layer optimizes the matching and output performance to vibration source.
Traditional narrow acquisition device actually only includes a basal layer, and the multilayer multi-resonant acquisition device in the invention
The frequency and performance of each formant can be changed by adjusting structure, to promote the matching to vibration source, reach acquisition more
The purpose of more vibrational energies.The quantity of basal layer is more, and the formant quantity being distributed in a certain frequency domain is more.Substrate layer number
It is as shown in Figure 9 with the power output performance comparison of narrowband acquisition device.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of multi-resonant vibrational energy acquisition device characterized by comprising the beam-like that two panels or the above stratiform of two panels stack
Basal layer, one or more pieces be provided with the piezoelectric material and one or more mass block of output electrode, the piezoelectric material
It is arranged in the basal layer, the mass block is mounted on the upper surface or lower surface of the basal layer, and adjacent two base
Bottom mass block connection identical as at least one, one end of at least one basal layer is provided with the clamping position for outside clamping
It sets.
2. multi-resonant vibrational energy acquisition device according to claim 1, which is characterized in that further include by the mass block
Or the piezoelectric material is fixed on one or more intermediate plate groups of the basal layer.
3. multi-resonant vibrational energy acquisition device according to claim 2, which is characterized in that each intermediate plate group includes
Two intermediate plates being matched for clamping tightly.
4. multi-resonant vibrational energy acquisition device according to claim 3, which is characterized in that each intermediate plate group is extremely
Recessed portion is equipped among a few intermediate plate.
5. multi-resonant vibrational energy acquisition device according to claim 4, which is characterized in that described in the two of the intermediate plate group
Intermediate plate is separately positioned on above and below the mass block, and the mass block is placed in the recessed portion of the intermediate plate.
6. multi-resonant vibrational energy acquisition device according to claim 4, which is characterized in that the two intermediate plate groups are pressed from both sides respectively
The both ends of the tight piezoelectric material, and the piezoelectric material is accommodated in the recessed portion of the intermediate plate of the intermediate plate group.
7. described in any item multi-resonant vibrational energy acquisition devices according to claim 1~6, which is characterized in that the substrate
Layer includes successively the first basal layer and the second basal layer of parallel stacking from the bottom up, the first end of first basal layer
The clip position is set, the mass block includes the first mass block and the second mass block, the second end of first basal layer,
And the second end of the second basal layer above the second end of first basal layer is connect with first mass block respectively,
Second mass block is arranged on second basal layer.
8. described in any item multi-resonant vibrational energy acquisition devices according to claim 1~6, which is characterized in that the substrate
Layer includes the successively third basal layer, the 4th basal layer and the 5th basal layer of parallel stacking from the bottom up, the third substrate
The clip position is arranged in the first end of layer, and the mass block includes third mass block, the 4th mass block and the 5th mass block, institute
State the second end of third basal layer and the second end difference of the 4th basal layer above the second end of the third basal layer
It is connect with the third mass block, the first end of the 4th basal layer and above the first end of the 4th basal layer
The first end of the 5th basal layer connect respectively with the 4th mass block, above the second end of the 4th basal layer
5th mass block is set in the second end of five basal layers.
9. described in any item multi-resonant vibrational energy acquisition devices according to claim 1~6, which is characterized in that the substrate
Layer includes successively the 6th basal layer, the 7th basal layer and the 8th basal layer of parallel stacking from the bottom up, the 7th substrate
The first end of layer is arranged the clip position, and the mass block includes the 6th mass block, the 7th mass block, the 8th mass block and the
Nine mass blocks, the second end of the 7th basal layer and the 8th basal layer above the second end of the 7th basal layer
Second end connect respectively with the 6th mass block, in the middle part of the 7th basal layer and the 6th basal layer
Portion is connect with the 7th mass block respectively, and the 8th mass block is arranged at the middle part of the 8th basal layer, described the
The 9th mass block is arranged in the bottom of the first end of the 6th basal layer below the first end of seven basal layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466278.8A CN109980992A (en) | 2017-12-28 | 2017-12-28 | A kind of multi-resonant vibrational energy acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711466278.8A CN109980992A (en) | 2017-12-28 | 2017-12-28 | A kind of multi-resonant vibrational energy acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109980992A true CN109980992A (en) | 2019-07-05 |
Family
ID=67075370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711466278.8A Pending CN109980992A (en) | 2017-12-28 | 2017-12-28 | A kind of multi-resonant vibrational energy acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109980992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3892325A1 (en) * | 2020-04-09 | 2021-10-13 | Cairdac | Leadless capsule type autonomous cardiac implant, comprising an energy recovery device with piezoelectric blade |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359882A (en) * | 2008-08-29 | 2009-02-04 | 清华大学 | Piezoelectric vibration energy collecting apparatus with resonance frequency adjustable |
| US7948153B1 (en) * | 2008-05-14 | 2011-05-24 | Sandia Corporation | Piezoelectric energy harvester having planform-tapered interdigitated beams |
| CN103647475A (en) * | 2013-12-16 | 2014-03-19 | 厦门大学 | Wideband piezoelectric vibration energy collecting device |
| CN104900797A (en) * | 2015-06-10 | 2015-09-09 | 中国科学技术大学 | Piezoelectric vibrator |
| CN106374777A (en) * | 2016-09-27 | 2017-02-01 | 安徽大学 | S-shaped piezoelectric cantilever beam vibration energy collector |
| CN106787943A (en) * | 2017-02-18 | 2017-05-31 | 中国大唐集团科技工程有限公司 | A kind of S types device for collecting piezoelectric vibration energy |
-
2017
- 2017-12-28 CN CN201711466278.8A patent/CN109980992A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7948153B1 (en) * | 2008-05-14 | 2011-05-24 | Sandia Corporation | Piezoelectric energy harvester having planform-tapered interdigitated beams |
| CN101359882A (en) * | 2008-08-29 | 2009-02-04 | 清华大学 | Piezoelectric vibration energy collecting apparatus with resonance frequency adjustable |
| CN103647475A (en) * | 2013-12-16 | 2014-03-19 | 厦门大学 | Wideband piezoelectric vibration energy collecting device |
| CN104900797A (en) * | 2015-06-10 | 2015-09-09 | 中国科学技术大学 | Piezoelectric vibrator |
| CN106374777A (en) * | 2016-09-27 | 2017-02-01 | 安徽大学 | S-shaped piezoelectric cantilever beam vibration energy collector |
| CN106787943A (en) * | 2017-02-18 | 2017-05-31 | 中国大唐集团科技工程有限公司 | A kind of S types device for collecting piezoelectric vibration energy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3892325A1 (en) * | 2020-04-09 | 2021-10-13 | Cairdac | Leadless capsule type autonomous cardiac implant, comprising an energy recovery device with piezoelectric blade |
| US11357994B2 (en) | 2020-04-09 | 2022-06-14 | Cairdac | Autonomous cardiac implant of the leadless capsule type, including a piezoelectric beam energy harvester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ahmed et al. | A review on energy harvesting approaches for renewable energies from ambient vibrations and acoustic waves using piezoelectricity | |
| Wang et al. | Acoustic energy harvesting by piezoelectric curved beams in the cavity of a sonic crystal | |
| Lee et al. | Robust segment-type energy harvester and its application to a wireless sensor | |
| Zhang et al. | Energy harvesting from vibration with cross-linked polypropylene piezoelectrets | |
| Pan et al. | Experimental investigation of broadband energy harvesting of a bi-stable composite piezoelectric plate | |
| Ramalingam et al. | A new piezoelectric energy harvester using two beams with tapered cavity for high power and wide broadband | |
| CN104022685B (en) | The frequency modulation array piezoelectric cantilever prisoner applying to piezoelectric harvester can method | |
| EP2777082B1 (en) | Piezoelectric energy harvesting device or actuator | |
| Quintero et al. | Design optimization of vibration energy harvesters fabricated by lamination of thinned bulk-PZT on polymeric substrates | |
| CN102983781B (en) | Piezoelectric vibratory energy harvester | |
| CN103227586A (en) | Branch cantilever beam vibration generator and power generation method thereof | |
| Fernandes et al. | Design, fabrication, and testing of a low frequency MEMS piezoelectromagnetic energy harvester | |
| Castagnetti | A wideband fractal-inspired piezoelectric energy converter: design, simulation and experimental characterization | |
| Abas et al. | Electrode effects of a cellulose-based electro-active paper energy harvester | |
| Lin et al. | Investigation of resonant and energy harvesting characteristics of piezoelectric fiber composite bimorphs | |
| Wang et al. | Finite element analysis of a unimorph cantilever for piezoelectric energy harvesting | |
| CN109980992A (en) | A kind of multi-resonant vibrational energy acquisition device | |
| Liu et al. | High output power density and strong vibration durability in a modified barbell-shaped energy harvester based on multilayer Pb (In1/2Nb1/2) O3–Pb (Mg1/3Nb2/3) O3–PbTiO3 single crystals | |
| Ren et al. | Energy harvesting using multilayer structure based on 0.71 Pb (Mg 1/3 Nb 2/3) O 3–0.29 PbTiO 3 single crystal | |
| CN207573264U (en) | A kind of electricity energy harvester of the double localization characteristics of application phonon crystal containing defect beam | |
| Xu et al. | A piezoelectric PZT ceramic multilayer stack for energy harvesting under dynamic forces | |
| Duan et al. | Multi-factors analysis on the energy harvesting performance of PEH under multiple-frequency excitation | |
| Pan et al. | A piezoelectric wind energy harvesting device with right-angle cantilever beam | |
| Wang et al. | The performance of a piezoelectric cantilevered energy harvester with an imperfectly bonded interface | |
| Anton et al. | Self-charging structures using piezoceramics and thin-film batteries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190705 |