CN111245295A - Electromagnetic vibration energy collector - Google Patents
Electromagnetic vibration energy collector Download PDFInfo
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- CN111245295A CN111245295A CN202010089912.6A CN202010089912A CN111245295A CN 111245295 A CN111245295 A CN 111245295A CN 202010089912 A CN202010089912 A CN 202010089912A CN 111245295 A CN111245295 A CN 111245295A
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- 239000000758 substrate Substances 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims description 60
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241001124569 Lycaenidae Species 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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Abstract
An electromagnetic vibration energy harvester comprising: the lower substrate provides a supporting base; an upper substrate disposed on a lower substrate; the upper substrate comprises but is not limited to a square shape, one side of the upper substrate, which faces the lower substrate, is provided with a square groove, and a magnet array is arranged in the square groove; the lower substrate includes: braced frame, interior quality piece, serpentine coil and motion subassembly, interior quality piece sets up braced frame is inboard, the inboard edge of braced frame sets up the motion subassembly with interior quality piece is connected, serpentine coil sets up on the interior quality piece. The electromagnetic vibration energy collector has a compact structure and is suitable for miniaturization of devices; the electromagnetic vibration energy collector has the advantages of high energy collection efficiency, high reliability and long service life, can be produced in batches, can be integrated with an intelligent control system, and can be prepared by adopting an MEMS (micro-electromechanical systems) technology.
Description
Technical Field
The invention relates to an electromagnetic vibration energy collector, belonging to the related field of micro energy technology.
Background
The energy collector can pick up environmental energy (such as radiation, temperature difference, vibration and the like) and convert the environmental energy into electric energy to supply power to the system. Compared with the traditional electrochemical cell, the energy collector has the advantages of economy, environmental protection, no service life limitation theoretically and the like, so that the energy collector accords with the future development trend of energy sources and is very suitable for providing electric energy for emerging fields such as Internet of things and wearable equipment. Solar energy, electromagnetic radiation, temperature difference, vibration and the like are environment energy sources which can be picked up, and compared with other environment energy sources, the vibration is an energy source with wide distribution, so that the vibration energy collector has wide development and application prospects.
Vibration energy is one of the most common energies in nature, and the collection methods include piezoelectric type, electromagnetic type, electrostatic type, and the like. Of the various types of vibration energy harvesters, electromagnetic vibration energy harvesters based on the faraday's principle of electromagnetic induction have been developed most maturely. The electromagnetic type energy collector generally adopts a cantilever beam structure, has the advantages of relatively simple structure, high energy density, capability of being manufactured by adopting a micro-mechanical system (MEMS) processing technology and the like compared with other collection modes, and becomes a hotspot in the field of energy collectors in recent years.
At present, most vibration energy collectors based on electromagnetic effect have some defects that the output voltage/power rate of the existing electric energy collectors is too low to meet the requirements of energy storage and driving devices; the sensor has the advantages of large volume, high power consumption, high cost, difficult batch production, low sensitivity, weak overload resistance, small dynamic range, non-integration and difficulty in embedding into electronic, information and intelligent control systems.
In view of these problems, there is a need for a new electromagnetic vibration energy harvester that can effectively improve the energy harvesting efficiency, the reliability and the service life of the device, and the volume of the electromagnetic vibration energy harvester can be reduced, the electromagnetic vibration energy harvester can be mass-produced, and the electromagnetic vibration energy harvester can be integrated with an intelligent control system.
Disclosure of Invention
In order to solve the above problems, the present invention provides
An electromagnetic vibration energy harvester comprising:
the lower substrate provides a supporting base;
an upper substrate disposed on a lower substrate;
the upper substrate comprises but is not limited to a square shape, one side of the upper substrate, which faces the lower substrate, is provided with a square groove, and a magnet array is arranged in the square groove;
the lower substrate includes: braced frame, interior quality piece, serpentine coil and motion subassembly, interior quality piece sets up braced frame is inboard, the inboard edge of braced frame sets up the motion subassembly with interior quality piece is connected, serpentine coil sets up on the interior quality piece.
Optionally, the magnet array on the upper substrate is formed by a plurality of magnets arranged in parallel along the X direction, the S poles and the N poles of the magnets in the magnet array are arranged alternately, and the magnet array corresponds to the serpentine coil and is located above the serpentine coil.
Optionally, the serpentine coil is a serpentine bent shape and is of a zigzag structure, the serpentine coil is arranged along the Y axis, and the bent part of the serpentine coil is arranged along the X axis.
Optionally, the motion assembly comprises: the first movement mechanism, the second movement mechanism, the third movement mechanism and the fourth movement mechanism are respectively arranged at the inner side corners of the supporting frame body.
Optionally, the first moving mechanism, the second moving mechanism, the third moving mechanism and the fourth moving mechanism which are adjacent to each other are symmetrically arranged on the inner side of the supporting frame body, and the arrangement directions of the first moving mechanism, the second moving mechanism, the third moving mechanism and the fourth moving mechanism are parallel to each other and are all arranged along the Y-axis direction.
Optionally, the first movement mechanism, the second movement mechanism, the third movement mechanism and the fourth movement mechanism are the same in structure and are composed of a first movement elastic beam, a second movement elastic beam, a movement connecting block and a movement connecting beam, the movement connecting beam is arranged at one end of the movement connecting block, the first movement elastic beam and the second movement elastic beam are respectively arranged on two sides of the movement connecting block, one end of the movement connecting block is respectively connected with the movement connecting beam, the other ends of the first movement elastic beam and the second movement elastic beam are respectively connected with the inner mass block, and the other end of the movement connecting block is connected with the supporting frame body.
Optionally, the first moving elastic beam, the second moving elastic beam and the moving connecting block are all arranged along the Y-axis direction.
The invention has the beneficial effects that:
the electromagnetic vibration energy collector has a compact structure and is suitable for miniaturization of devices; the electromagnetic vibration energy collector has the advantages of high energy collection efficiency, high reliability and long service life, can be produced in batches, can be integrated with an intelligent control system, and can be prepared by adopting an MEMS (micro-electromechanical systems) technology.
Drawings
The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:
FIG. 1 is an overall structural view of the present invention;
FIG. 2 is a view of the structure of the lower substrate of the present invention;
FIG. 3 is a diagram of the structure of the upper substrate of the present invention;
FIG. 4 is a schematic cross-sectional view of a magnet array according to the present invention;
FIG. 5 is a view of the construction of the walking beam of the present invention;
as shown in the figures, the list of reference numbers is as follows:
1-upper substrate, 2-supporting frame body, 3-inner mass block, 4-serpentine coil, 5-first motion mechanism, 6-second motion mechanism, 7-third motion mechanism, 8-fourth motion mechanism, 9-square groove, 10-magnet array, 11-first motion elastic beam, 12-second motion elastic beam, 13-motion connecting block and 14-motion connecting beam.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is further described below with reference to the accompanying drawings:
1-3, an electromagnetic vibration energy harvester comprising:
the lower substrate provides a supporting base;
an upper substrate 1, the upper substrate 1 being disposed on a lower substrate;
the upper substrate 1 includes but is not limited to a square shape, one side of the upper substrate 1 facing the lower substrate is provided with a square groove 9, and a magnet array 10 is arranged in the square groove 9;
the lower substrate includes: braced frame 2, interior quality piece 3, serpentine coil 4 and motion subassembly, interior quality piece 3 sets up braced frame 2 is inboard, the 2 inboard edges of braced frame set up the motion subassembly with interior quality piece 3 is connected, serpentine coil 4 sets up on the interior quality piece 3.
As shown in fig. 3 and 4, the magnet array 10 on the upper substrate 1 is composed of a plurality of magnets arranged in parallel in the X direction, and preferably, the magnets may be bar magnets. The S poles and the N poles of the magnets in the magnet array 10 are arranged alternately, and the magnet array 10 corresponds to the position of the serpentine coil 4 and is positioned above the serpentine coil 4.
As shown in fig. 2, the serpentine coil 4 is a serpentine bent shape and is a zigzag structure, the serpentine coil 4 is disposed along the Y axis, and the bent portion of the serpentine coil is disposed along the X axis. When the serpentine coil 4 moves in the X direction, according to the law of faraday's electromagnetic induction, the wire cutting the magnetic field generates an electromotive force across the wire.
As shown in fig. 2, the moving assembly includes: the first movement mechanism 5, the second movement mechanism 6, the third movement mechanism 7 and the fourth movement mechanism 8 are respectively arranged at the inner side corners of the supporting frame body 2. The adjacent first movement mechanism 5, second movement mechanism 6, third movement mechanism 7 and fourth movement mechanism 8 are symmetrically arranged on the inner side of the supporting frame body 2. The arrangement directions of the first movement mechanism 5, the second movement mechanism 6, the third movement mechanism 7 and the fourth movement mechanism 8 are mutually parallel and are all arranged along the Y-axis direction.
As shown in fig. 2 and 5, the first moving mechanism 5, the second moving mechanism 6, the third moving mechanism 7, and the fourth moving mechanism 8 have the same structure, and are also a folded beam structure, and the folded beam structure is a thin strip beam-shaped structure, and the size of the folded beam structure can be determined according to the application environment and the stiffness coefficient.
As shown in fig. 2 and 5, each of the first moving mechanism 5, the second moving mechanism 6, the third moving mechanism 7, and the fourth moving mechanism 8 is composed of a first moving elastic beam 11, a second moving elastic beam 12, a moving connecting block 13, and a moving connecting beam 14, the moving connecting beam 14 is disposed at one end of the moving connecting block 13, and the first moving elastic beam 11 and the second moving elastic beam 12 are respectively disposed at two sides of the moving connecting block 13, and one end of each of the first moving elastic beam 11 and the second moving elastic beam is respectively connected to the moving connecting beam 14. The other ends of the first moving elastic beam 11 and the second moving elastic beam 12 are respectively connected with the inner mass block 3, and the other end of the moving connecting block 13 is connected with the supporting frame body 2.
The first moving elastic beam 11, the second moving elastic beam 12 and the moving connecting block 13 are all arranged along the Y-axis direction. The width of the gap formed by the first moving elastic beam 11, the second moving elastic beam 12 and the moving connecting block 13 is the displacement in the moving direction.
The principle of the invention is as follows:
the inner mass block is driven to resonate in the X direction under the action of external force. The inner mass block drives the snake-shaped coil to vibrate in the X direction, and cuts the magnetic induction line generated by the upper substrate magnet array, so that electromotive force is generated at two ends of the snake-shaped coil.
The electromagnetic vibration energy collector has higher energy collection efficiency, output power and output power density (W/cm 2); the reliability and the service life of the electromagnetic vibration energy collector are improved, and the manufacturing difficulty of devices is simplified; easy mass production, low production cost and easy miniaturization.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (7)
1. An electromagnetic vibration energy harvester, comprising:
the lower substrate provides a supporting base;
an upper substrate (1), the upper substrate (1) being disposed on a lower substrate;
the upper substrate (1) comprises but is not limited to a square shape, a square groove (9) is formed in one side, facing the lower substrate, of the upper substrate (1), and a magnet array (10) is arranged in the square groove (9);
the lower substrate includes: braced frame body (2), interior quality piece (3), serpentine coil (4) and motion subassembly, interior quality piece (3) set up braced frame body (2) are inboard, the edge of braced frame body (2) inboard sets up the motion subassembly with interior quality piece (3) are connected, serpentine coil (4) set up on interior quality piece (3).
2. The electromagnetic vibration energy harvester of claim 1 wherein the magnet array (10) on the upper substrate (1) is composed of a plurality of magnets arranged in parallel along the X direction, the S and N poles of the magnets in the magnet array (10) are arranged alternately, and the magnet array (10) corresponds to the position of the serpentine coil (4) and is located above the serpentine coil (4).
3. The electromagnetic vibration energy harvester of claim 1 wherein the serpentine coil (4) is a serpentine bend in a serpentine configuration, the serpentine coil (4) being disposed along a Y-axis and the bend of the serpentine coil being disposed along an X-axis.
4. The electromagnetic vibration energy harvester of claim 1 wherein the motion assembly comprises: the supporting frame comprises a first moving mechanism (5), a second moving mechanism (6), a third moving mechanism (7) and a fourth moving mechanism (8), wherein the first moving mechanism (5), the second moving mechanism (6), the third moving mechanism (7) and the fourth moving mechanism (8) are arranged at the inner side corners of the supporting frame body (2) respectively.
5. The electromagnetic vibration energy collector of claim 4 wherein the adjacent first moving mechanism (5), second moving mechanism (6), third moving mechanism (7), and fourth moving mechanism (8) are symmetrically arranged inside the supporting frame body (2), and the first moving mechanism (5), second moving mechanism (6), third moving mechanism (7), and fourth moving mechanism (8) are arranged in parallel and are all arranged along the Y-axis direction.
6. The electromagnetic vibration energy collector of claim 4 or 5 wherein the first movement mechanism (5), the second movement mechanism (6), the third movement mechanism (7) and the fourth movement mechanism (8) are identical in structure and are all composed of a first movement elastic beam (11), a second movement elastic beam (12), a movement connecting block (13) and a movement connecting beam (14), the motion connecting beam (14) is arranged at one end of the motion connecting block (13), the first moving elastic beam (11) and the second moving elastic beam (12) are respectively arranged at two sides of the moving connecting block (13) and one end of each moving elastic beam is respectively connected with the moving connecting beam (14), the other ends of the first moving elastic beam (11) and the second moving elastic beam (12) are respectively connected with the inner mass block (3), the other end of the motion connecting block (13) is connected with the supporting frame body (2).
7. The electromagnetic vibration energy harvester of claim 6 wherein the first moving spring beam (11), the second moving spring beam (12) and the moving connecting block (13) are all arranged along the Y-axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089912.6A CN111245295A (en) | 2020-02-13 | 2020-02-13 | Electromagnetic vibration energy collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089912.6A CN111245295A (en) | 2020-02-13 | 2020-02-13 | Electromagnetic vibration energy collector |
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| Publication Number | Publication Date |
|---|---|
| CN111245295A true CN111245295A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010089912.6A Pending CN111245295A (en) | 2020-02-13 | 2020-02-13 | Electromagnetic vibration energy collector |
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| CN (1) | CN111245295A (en) |
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2020
- 2020-02-13 CN CN202010089912.6A patent/CN111245295A/en active Pending
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