CN204361938U - A kind of L-type girder construction internal resonance wideband vibration energy collector - Google Patents
A kind of L-type girder construction internal resonance wideband vibration energy collector Download PDFInfo
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- CN204361938U CN204361938U CN201520011770.6U CN201520011770U CN204361938U CN 204361938 U CN204361938 U CN 204361938U CN 201520011770 U CN201520011770 U CN 201520011770U CN 204361938 U CN204361938 U CN 204361938U
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Abstract
The utility model relates to a kind of L-type girder construction internal resonance wideband vibration energy collector, is made up of L-type beam, piezoelectric ceramic wafer, lower permanent magnet, upper permanent magnet, mass, extraction circuit and insulation base station; The lower end insulation base station clamping of the vertical beam of described L-type beam, is connected to by insulation base station in the structure needing to realize vibrational energy collection; Described piezoelectric ceramic wafer is fixed on the outer surface of vertical beam near bottom stiff end of L-type beam; Described extraction circuit is connected on piezoelectric ceramic wafer, and described lower permanent magnet is fixed on the horizontal beam of L-type beam near right angle, lower permanent magnet vertically above certain distance fix a upper permanent magnet contrary with lower permanent magnet pole; Described mass is fixed on L-type beam horizontal beam free end.Due to this energy collecting device portable construction, simple and direct, be easy to realize, therefore can be widely used in the mechanical field such as automobile, steamer.
Description
Technical field
The utility model relates to a kind of L-type girder construction internal resonance wideband vibration energy collector.
Background technology
Vibrational energy is prevalent in the vibration of various industrial machinery, vibrational energy can be converted into electric energy by energy collecting device, reaches store electrical energy or the object for powering electronic systems.Vibration energy collector is a kind of being coupled to by mechnical oscillator in the circuit of a data-collection mechanism, thus realizes the device of vibrational energy collection.Comprise electromagnetic type, piezoelectric type or magneto-electric at present several.Research finds, for existing energy collecting device, also there is energy acquisition frequency bandwidth narrower, the minor shifts of driving frequency near energy collecting device natural frequency all will greatly weaken energy acquisition efficiency, the problems such as energy collecting device structure is single, and energy acquisition efficiency is low.
Utility model content
For the defect that prior art exists, the utility model proposes a kind of L-type girder construction internal resonance wideband vibration energy collector, it is narrower that object is to solve existing energy collecting device ubiquitous energy acquisition frequency bandwidth, the problems such as energy acquisition efficiency is low.
For achieving the above object, the technical scheme that the utility model technical solution problem adopts is:
A kind of L-type girder construction internal resonance wideband vibration energy collector, is made up of L-type beam, piezoelectric ceramic wafer, lower permanent magnet, upper permanent magnet, mass, extraction circuit and insulation base station; The lower end insulation base station clamping of the vertical beam of described L-type beam, is connected to by insulation base station in the structure needing to realize vibrational energy collection; Described piezoelectric ceramic wafer is fixed on the outer surface of vertical beam near bottom stiff end of L-type beam; Described extraction circuit is connected on piezoelectric ceramic wafer, and described lower permanent magnet is fixed on the horizontal beam of L-type beam near right angle, lower permanent magnet vertically above certain distance fix a upper permanent magnet contrary with lower permanent magnet pole; Described mass is fixed on L-type beam horizontal beam free end.
Described piezoelectric ceramic wafer uses PZT-5A layered piezoelectric sheet, and described L-type beam adopts stainless steel material to make.
Compared with prior art, the utility model has following outstanding substantive distinguishing features and significant advantage:
The utility model utilizes Nonlinear System with Multi degree of Freedom to vibrate specific internal resonance phenomenon, design distinctive L-type girder construction, and utilize the fm role of magnet, front two rank model frequencies can be regulated to be integer or approximate integral multiple relation, produce the internal resonance of integral multiple relation, energy is transformed between two rank mode, has widened the frequency collection bandwidth of vibration energy collector, thus can greatly improve energy acquisition efficiency; The layered piezoelectric sheet adopted in structure is also very beneficial for the raising of energy acquisition efficiency.Due to this energy collecting device portable construction, simple and direct, be easy to realize, therefore can be widely used in the mechanical field such as automobile, steamer.
Accompanying drawing explanation
Fig. 1 is the schematic diagram under L-type girder construction internal resonance wideband vibration energy collector inactive state.
Embodiment
Below in conjunction with accompanying drawing, the utility model specific embodiment is further described.
As shown in Figure 1, a kind of L-type girder construction internal resonance wideband vibration energy collector, is made up of L-type beam 1, piezoelectric ceramic wafer 2, lower permanent magnet 3, upper permanent magnet 4, mass 5, extraction circuit 6 and insulation base station 7; The lower end insulation base station 7 of the vertical beam of described L-type beam 1 clamps, and is connected in the structure needing to realize vibrational energy collection by insulation base station 7; Described piezoelectric ceramic wafer 2 is fixed on the outer surface of vertical beam near bottom stiff end of L-type beam 1; Described extraction circuit 6 is connected on piezoelectric ceramic wafer 2, and described lower permanent magnet 3 is fixed on the horizontal beam of L-type beam 1 near right angle, lower permanent magnet 3 vertically above certain distance fix a upper permanent magnet 4 contrary with lower permanent magnet 3 magnetic pole; Described mass 5 is fixed on L-type beam 1 horizontal beam free end.
Described piezoelectric ceramic wafer 2 uses PZT-5A layered piezoelectric sheet, and described L-type beam 1 adopts stainless steel material to make.
The operation principle of the utility model L-type girder construction internal resonance wideband vibration energy collector is as follows: when needing the structure realizing energy acquisition that vibration occurs, and L-type beam 1 will be vibrated together by insulation base station 7.Due to the characteristic of L-type beam 1 structure itself, under vibrational excitation, two principal modes will be had.By regulating the distance d between two permanent magnets, collector restoring force can be regulated, this two rank model frequency is made to be integer or approximate integral multiple relation, produce the specific internal resonance phenomenon of Nonlinear System with Multi degree of Freedom vibration, energy is mutually transformed between two rank mode, thus can greatly widen energy acquisition frequency bandwidth.The piezoelectric ceramic wafer 2 being pasted onto L-type beam 1 surface is subject to External Force Acting in this vibration processes, vibrational energy can be changed into electric energy, and electrical power storage is got up by drawing circuit 6, thus realizes energy acquisition.Because this piezoelectric ceramic wafer 2 is designed to stratiform, therefore energy acquisition efficiency can be improved.
Claims (2)
1. a L-type girder construction internal resonance wideband vibration energy collector, is characterized in that: be made up of L-type beam (1), piezoelectric ceramic wafer (2), lower permanent magnet (3), upper permanent magnet (4), mass (5), extraction circuit (6) and insulation base station (7); Lower end insulation base station (7) clamping of the vertical beam of described L-type beam (1), is connected to by insulation base station (7) in the structure needing to realize vibrational energy collection; Described piezoelectric ceramic wafer (2) is fixed on the outer surface of vertical beam near bottom stiff end of L-type beam (1); Described extraction circuit (6) is connected on piezoelectric ceramic wafer (2), described lower permanent magnet (3) is fixed on the horizontal beam of L-type beam (1) near right angle, lower permanent magnet (3) vertically top certain distance fix a upper permanent magnet (4) contrary with lower permanent magnet (3) magnetic pole; Described mass (5) is fixed on L-type beam (1) horizontal beam free end.
2. L-type girder construction internal resonance wideband vibration energy collector according to claim 1, is characterized in that: described piezoelectric ceramic wafer (2) uses PZT-5A layered piezoelectric sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520011770.6U CN204361938U (en) | 2015-01-09 | 2015-01-09 | A kind of L-type girder construction internal resonance wideband vibration energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520011770.6U CN204361938U (en) | 2015-01-09 | 2015-01-09 | A kind of L-type girder construction internal resonance wideband vibration energy collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361938U true CN204361938U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520011770.6U Expired - Fee Related CN204361938U (en) | 2015-01-09 | 2015-01-09 | A kind of L-type girder construction internal resonance wideband vibration energy collector |
Country Status (1)
| Country | Link |
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| CN (1) | CN204361938U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578910A (en) * | 2015-01-09 | 2015-04-29 | 上海大学 | Internal-resonance broadband vibration energy harvester of L-shaped beam structure |
| CN107359826A (en) * | 2017-08-28 | 2017-11-17 | 北京工业大学 | A kind of four side synchronous hunting double mode wideband TRTs |
| CN110138273A (en) * | 2019-05-20 | 2019-08-16 | 山东理工大学 | A kind of non-linear piezoelectric energy trapping device of L beam type magnetic force and method |
-
2015
- 2015-01-09 CN CN201520011770.6U patent/CN204361938U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578910A (en) * | 2015-01-09 | 2015-04-29 | 上海大学 | Internal-resonance broadband vibration energy harvester of L-shaped beam structure |
| CN107359826A (en) * | 2017-08-28 | 2017-11-17 | 北京工业大学 | A kind of four side synchronous hunting double mode wideband TRTs |
| CN110138273A (en) * | 2019-05-20 | 2019-08-16 | 山东理工大学 | A kind of non-linear piezoelectric energy trapping device of L beam type magnetic force and method |
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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 |
Granted publication date: 20150527 Termination date: 20160109 |