CN204089639U - A kind of energy collecting device - Google Patents
A kind of energy collecting device Download PDFInfo
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- CN204089639U CN204089639U CN201420578119.2U CN201420578119U CN204089639U CN 204089639 U CN204089639 U CN 204089639U CN 201420578119 U CN201420578119 U CN 201420578119U CN 204089639 U CN204089639 U CN 204089639U
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- structure body
- shaped structure
- collecting device
- energy collecting
- energy
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Abstract
The utility model discloses a kind of energy collecting device, form the holder (3) comprising and to be fixed on through screw (2) on vibrational structure body (1), the upper level of holder (3) is provided with the first beam-shaped structure body (5) of different-thickness successively, second beam-shaped structure body (6) and the 3rd beam-shaped structure body (7), first beam-shaped structure body (5), second beam-shaped structure body (6) and the 3rd unsettled end of beam-shaped structure body (7) upper surface are equipped with magnet (8), first beam-shaped structure body (5), second beam-shaped structure body (6) and the 3rd beam-shaped structure body (7) upper surface are equipped with piezoelectric patches (4) near anchor portion.The utility model can collect vibrational energy in wider frequency range, improves collection of energy transformation efficiency.
Description
Technical field
The utility model relates to a kind of energy collecting device, particularly a kind of energy collecting device vibrational energy being converted into electric energy in wide frequency range.
Background technology
Due to the progress of technology, the application development of wireless device in the last few years, its powerup issue also gets more and more people's extensive concerning.Piezoelectric energy collecting device, as a kind of novel miniature power generating device, has that structure is simple, caloric value is little, without electromagnetic interference, the miniaturization be easy on processing and fabricating and implementation structure, the advantage such as integrated, is applicable to all kinds of sensing and monitoring system.Piezoelectric energy collecting device major part is in the market structure based on cantilever beam, and utilizes its mode to shake shape to obtain electric energy.This collection of energy mode has the features such as efficiency is higher, frequency range is narrower, but cannot collect the vibrational energy under higher frequency.Therefore, be necessary to develop a kind of frequency range relatively wider, the novel energy gathering-device that power supplying efficiency is higher.
Utility model content
The purpose of this utility model is, provides a kind of energy collecting device.The utility model can collect vibrational energy in wider frequency range, improves collection of energy transformation efficiency.
The technical solution of the utility model: a kind of energy collecting device, it is characterized in that: comprise the holder be fixed on through screw on vibrational structure body, on holder, level is provided with the first beam-shaped structure body of different-thickness, the second beam-shaped structure body and the 3rd beam-shaped structure body successively, first beam-shaped structure body, the second beam-shaped structure body and the 3rd unsettled end of beam-shaped structure body upper surface are equipped with magnet, and the first beam-shaped structure body, the second beam-shaped structure body and the 3rd beam-shaped structure body upper surface are equipped with piezoelectric patches near anchor portion.
In aforesaid energy collecting device, the thickness of described first beam-shaped structure body, the second beam-shaped structure body and the 3rd beam-shaped structure body increases successively, and the thickness of the second beam-shaped structure body is the integral multiple of the first beam-shaped structure body; The thickness of the 3rd beam-shaped structure body is the integral multiple of the second beam-shaped structure body.
In aforesaid energy collecting device, the pole polarity between described adjacent magnets is contrary.
In aforesaid energy collecting device, described first beam-shaped structure body, the second beam-shaped structure body and the 3rd beam-shaped structure body are the beam-shaped structure bodies that stainless steel or aluminium are formed.
Compared with prior art, the utility model is fixed on vibrational structure body by cantilever beam one end of three kinds of different-thickness, and produce strain maximum position at different resonant frequencies Analysis of A Cantilever Beam Under, the stiff end of i.e. cantilever beam arranges piezoelectric patches, the other end (unsettled end) arranges magnet, strengthen vibration by the quality of magnet and the interaction of magnetic force, the vibrational energy of surrounding environment can be absorbed in very wide frequency range, thus increase substantially collection of energy transformation efficiency.The beam-shaped structure body that the utility model adopts thickness to increase successively, makes its vibration frequency increase progressively.The utility model is applied to the power supply device of network and Wireless Telecom Equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Being labeled as in accompanying drawing: 1-vibrational structure body, 2-screw, 3-holder, 4-piezoelectric patches, 5-first beam-shaped structure body, 6-second beam-shaped structure body, 7-the 3rd beam-shaped structure body, 8-magnet.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation limited the utility model.
Embodiment.A kind of energy collecting device, form as shown in Figure 1, comprise the holder 3 be fixed on through screw 2 on vibrational structure body 1, holder 3 is L shape, on holder 3, level is provided with the first beam-shaped structure body 5, second beam-shaped structure body 6 and the 3rd beam-shaped structure body 7 of different-thickness successively, first beam-shaped structure body 5, second beam-shaped structure body 6 and the 3rd unsettled end of beam-shaped structure body 7 upper surface are equipped with magnet 8, and the first beam-shaped structure body 5, second beam-shaped structure body 6 and the 3rd beam-shaped structure body 7 upper surface are equipped with piezoelectric patches 4 near anchor portion.Described piezoelectric patches 4 is in one end of cantilever beam, this place be cantilever beam under different resonant frequencies produce strain maximum position place.Magnet is set at the cantilever beam other end, by the resonance frequency of the adjustable vibrational structure body 3 of the quality of magnet.
Preferably, the thickness of described first beam-shaped structure body 5, second beam-shaped structure body 6 and the 3rd beam-shaped structure body 7 increases successively, and the thickness of the second beam-shaped structure body 6 is the integral multiple of the first beam-shaped structure body 5; The thickness of the 3rd beam-shaped structure body 7 is the integral multiple of the second beam-shaped structure body 6.
More optimizedly, the pole polarity between described adjacent magnets 8 is contrary, has mutual repulsive force, add large vibration amplitude by the interaction energy of magnetic force during vibration.
Described first beam-shaped structure body 5, second beam-shaped structure body 6 and the 3rd beam-shaped structure body 7 are beam-shaped structure bodies that stainless steel or aluminium are formed.
The utility model principle is as follows: beam-shaped structure body is fixed on vibrational structure body, vibrates together along with vibrational structure body to make beam-shaped structure body.Because first, second, third beam-shaped structure body 5,6,7 thickness increases progressively, therefore its vibration frequency increases progressively.When vibration frequency is less, the first beam-shaped structure body 5 Oscillation Amplitude is comparatively large, and the effect due to magnetic force causes the second beam-shaped structure body 6 and the 3rd beam-shaped structure body 7 amplitude strengthens, and frequency also promotes to some extent.When vibration frequency increases, the second beam-shaped structure body 6 Oscillation Amplitude is comparatively large, and the effect due to magnetic force causes the first beam-shaped structure body 5 and the 3rd beam-shaped structure body 7 amplitude strengthens, and frequency also promotes to some extent.When vibration frequency is larger, the 3rd beam-shaped structure body 7 Oscillation Amplitude is comparatively large, and the effect due to magnetic force causes the first beam-shaped structure body 5 and the second beam-shaped structure body 6 amplitude strengthens, and frequency also promotes to some extent.In addition, magnet, due to the quality of self, is fixed on beam-shaped structure body, can regulate the resonance frequency of vibrational structure body self.Therefore the utility model is fixed on vibrational structure body by cantilever beam one end of three kinds of different-thickness, and piezoelectric patches is set on cantilever beam one end, the other end arranges magnet, vibration is strengthened by the quality of magnet and the interaction of magnetic force, the vibrational energy of surrounding environment can be absorbed in very wide frequency range, thus increase substantially collection of energy transformation efficiency.
Claims (4)
1. an energy collecting device, it is characterized in that: comprise the holder (3) be fixed on through screw (2) on vibrational structure body (1), the upper level of holder (3) is provided with the first beam-shaped structure body (5) of different-thickness successively, second beam-shaped structure body (6) and the 3rd beam-shaped structure body (7), first beam-shaped structure body (5), second beam-shaped structure body (6) and the 3rd unsettled end of beam-shaped structure body (7) upper surface are equipped with magnet (8), first beam-shaped structure body (5), second beam-shaped structure body (6) and the 3rd beam-shaped structure body (7) upper surface are equipped with piezoelectric patches (4) near anchor portion.
2. energy collecting device according to claim 1, it is characterized in that: the thickness of described first beam-shaped structure body (5), the second beam-shaped structure body (6) and the 3rd beam-shaped structure body (7) increases successively, the thickness of the second beam-shaped structure body (6) is the integral multiple of the first beam-shaped structure body (5); The thickness of the 3rd beam-shaped structure body (7) is the integral multiple of the second beam-shaped structure body (6).
3. energy collecting device according to claim 1, is characterized in that: the pole polarity between described adjacent magnets (8) is contrary.
4. the energy collecting device according to claim 1,2 or 3, it is characterized in that: described first beam-shaped structure body (5), the second beam-shaped structure body (6) and the 3rd beam-shaped structure body (7), is the beam-shaped structure body that stainless steel or aluminium are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578119.2U CN204089639U (en) | 2014-10-08 | 2014-10-08 | A kind of energy collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578119.2U CN204089639U (en) | 2014-10-08 | 2014-10-08 | A kind of energy collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089639U true CN204089639U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420578119.2U Expired - Fee Related CN204089639U (en) | 2014-10-08 | 2014-10-08 | A kind of energy collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734564A (en) * | 2015-04-14 | 2015-06-24 | 大连理工大学 | Full-interdigital electrode micro-piezoelectric thick film vibration energy collector and manufacturing method thereof |
-
2014
- 2014-10-08 CN CN201420578119.2U patent/CN204089639U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734564A (en) * | 2015-04-14 | 2015-06-24 | 大连理工大学 | Full-interdigital electrode micro-piezoelectric thick film vibration energy collector and manufacturing method thereof |
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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: 20150107 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |