CN112117934A - Power generation device for absorbing vibration energy - Google Patents
Power generation device for absorbing vibration energy Download PDFInfo
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- CN112117934A CN112117934A CN202011037806.XA CN202011037806A CN112117934A CN 112117934 A CN112117934 A CN 112117934A CN 202011037806 A CN202011037806 A CN 202011037806A CN 112117934 A CN112117934 A CN 112117934A
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- vibration
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- 238000010248 power generation Methods 0.000 title claims abstract description 105
- 230000008859 change Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a power generation device for absorbing vibration energy, which comprises a shell, a vibration component, an elastic part and at least one second power generation component, wherein the shell is provided with an inner cavity, the vibration component comprises a mass block and a first piston part, the elastic part provides upward elastic force for the vibration component, the second power generation component is arranged on the side wall of the shell and comprises a power generation tube, a second coil, a second piston part and a second magnet, the second coil is arranged on the side wall of the power generation tube, the power generation tube is communicated with the inner cavity of the shell, the first piston part, the power generation tube and the second piston part form a pressure cavity, when the power generation device is excited by external vibration, the pressure change of the pressure cavity when the first piston part moves up and down enables the second piston part to move in the power generation tube in a reciprocating manner to drive the second magnet to cut the second coil, and the magnetic flux of the second coil is changed, an induced current is generated to convert the vibrational energy into electrical energy. The invention can be widely applied to the technical field of energy collection.
Description
Technical Field
The invention relates to the technical field of energy collection, in particular to a power generation device for absorbing vibration energy.
Background
In life, vibration is almost ubiquitous, and human activities and ambulation, wind-induced vibration, vibration generated during the operation of vehicles, and the like. If the vibration energy can be reasonably utilized and converted into the electric energy for life, considerable benefits can be brought.
A plurality of bridges with different forms and sizes are built in China, and the bridges inevitably vibrate in the using process. As an infrastructure, most bridges are frequently used, that is, the frequency of bridge vibration is high; and the bridge has potential huge vibration energy due to the huge volume. If can collect the vibration energy of bridge, will bring very big environmental benefit to can directly supply the electric energy to use like bridge health monitoring system and lighting system with the consumer on the bridge, promote the intelligent development of bridge building.
Disclosure of Invention
In order to solve at least one of the above technical problems and effectively collect vibration energy for power generation, the present invention provides a power generation device for absorbing vibration energy, and the adopted technical scheme is as follows:
the invention provides a power generation device for absorbing vibration energy, which comprises a shell, a vibration component, an elastic component and at least one second power generation component, wherein the shell is provided with an inner cavity, the vibration component is arranged in the shell, the vibration component comprises a mass block and a first piston component, the mass block is installed with the first piston component, the elastic component is arranged in the shell, the elastic component provides upward elastic force for the vibration component, the second power generation component is arranged on the side wall of the shell, the second power generation component comprises a power generation tube, a second coil, a second piston component and a second magnet, the second coil is arranged on the side wall of the power generation tube, the power generation tube is communicated with the inner cavity of the shell, the second magnet is installed with the second piston component, the second piston component reciprocates in the power generation tube to enable the second magnet to cut the second coil, the inner cavity of the shell, the first piston piece, the power generation tube and the second piston piece form a pressure cavity, and when the first piston piece moves up and down, the pressure change generated by the pressure cavity enables the second piston piece to realize reciprocating movement in the power generation tube.
In some embodiments of the invention, the power generation device includes a first power generation assembly disposed in the housing, the first power generation assembly including a first magnet and a first coil, the first magnet being mounted on the vibration assembly, the vibration assembly moving up and down to cause the first magnet to cut the first coil.
In some embodiments of the invention, a limiting tube is arranged in the shell, and the elastic element is arranged in the limiting tube.
In some embodiments of the invention, the first coil is disposed on a side wall of the limiting tube.
In some embodiments of the present invention, the second magnet does not contact the inner wall of the power generation tube.
In some embodiments of the invention, the power generation apparatus includes a rectifying and voltage stabilizing module.
In some embodiments of the invention, the power generation device includes an electric storage module.
In some embodiments of the present invention, the number of the power generation tubes is set to be plural, and the size of the power generation tubes has various specifications.
The embodiment of the invention has at least the following beneficial effects: when the power generation device is excited by external vibration, the vibration component vibrates to change the air pressure in the inner cavity of the shell, so that the second piston piece drives the second magnet to move in a reciprocating manner to cut the second coil, the magnetic flux of the second coil is changed, induced current is generated, and the vibration energy is converted into electric energy. The invention can be widely applied to the technical field of energy collection.
Drawings
The above and/or additional aspects and advantages 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 a block diagram of a power plant;
fig. 2 is a sectional view of the power generation device.
Detailed Description
Embodiments of the invention, examples of which are illustrated in the accompanying drawings, are described in detail below with reference to fig. 1-2, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality 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 if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., are used in an orientation or positional relationship indicated based on the drawings, it is merely for convenience of description and simplicity of description, and it is not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, is not to be considered as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 relates to a power generation device for absorbing vibration energy, which can be fixed on different vibration sources according to requirements, such as a bridge, and can be carried about. The power generation device comprises a shell 101, a vibration component, an elastic piece 104 and at least one second power generation component, wherein the shell 101 is provided with an inner cavity, the shape of the inner cavity is designed to be a cylinder or a prism, the vibration component is arranged in the shell 101, the elastic piece 104 provides upward elastic force for the vibration component, and the second power generation component is arranged on the side wall of the shell 101.
Specifically, the vibration assembly includes a mass block 102 and a first piston member 103, the mass block 102 being mounted with the first piston member 103, the mass block 102 being disposed on an upper side or a lower side of the first piston member 103. The first piston member 103 is made of silicone material, and has elasticity and sealing property. As can be seen from the figure, the elastic member 104 is disposed at the bottom of the inner cavity of the housing 101, and the elastic member 104 is disposed as a compression spring for supporting the vibration assembly and the first magnet 109. It will be appreciated that, in an alternative design, the resilient member 104 is arranged at the top of the inner cavity of the housing 101, the resilient member 104 being arranged as a tension spring for lifting the vibration assembly and the first magnet 109.
A limiting tube 108 is disposed in the housing 101, and the elastic member 104 is disposed in the limiting tube 108 for preventing the elastic member 104 from moving laterally. As can be seen from the figure, the limiting tube 108 is arranged at the bottom of the inner cavity of the shell 101. Of course, it will be appreciated that the stopper tube 108 may also be disposed at the top of the interior cavity of the housing 101, depending on the position of the resilient member 104.
The second power generation component includes a power generation tube 105, a second coil disposed at a side wall of the power generation tube 105, specifically, the second coil wound around the outside of the power generation tube 105, a second piston member 106, and a second magnet 107. The power generation tube 105 communicates with the inner cavity of the housing 101, the second magnet 107 is mounted with the second piston member 106, and the second piston member 106 reciprocates in the power generation tube 105 to cause the second magnet 107 to cut the second coil. The second piston member 106 is made of silicone material, and has elasticity and sealing property. Further, the second magnet 107 does not contact the inner wall of the power generation tube 105.
It can be understood that the power generation effect can be optimized by changing the diameter of the coil of the second coil, and the induced electromotive force generated by the power generation device can be improved by increasing the number of turns of the coil of the second coil, so that the power generation benefit is improved.
The inner cavity of the housing 101, the first piston member 103, the power generation tube 105 and the second piston member 106 form a pressure chamber which is sealed, and the second piston member 106 is reciprocated in the power generation tube 105 by the change of the air pressure generated in the pressure chamber when the first piston member 103 moves up and down. It is understood that making the bottom area of the inner cavity of the housing 101 as large as possible can collect more vibration energy, and is particularly suitable for vibration sources, such as bridges, having a large installation bottom area and containing large vibration energy. Meanwhile, the height of the shell 101 is designed to be smaller than the diameter or the long side of the ground, so that the space occupancy rate can be reduced.
When the power generation device is applied to a vibration source with high vibration frequency, the bottom area of the cavity of the shell 101 is smaller than the sum of the bottom areas of the power generation tubes 105, so that the motion frequency of the second piston member 106 in the power generation tubes 105 is smaller than the vibration frequency of the vibration source, and the effect of frequency reduction is achieved.
When the power generation device is applied to a vibration source with a low vibration frequency, such as the vibration of a bridge, the bottom area of the inner cavity of the housing 101 is generally set to be several times or tens of times or hundreds of times of the sum of the bottom areas of the power generation tubes 105, and the speed of the second piston member 106 in the power generation tube 105 during the movement can be increased according to the specific size of the housing 101, the number of the power generation tubes 105 and the vibration mode characteristics of the vibration source.
The number of the power generation tubes 105 may be plural as needed, and the size of the power generation tubes 105 has various specifications. For example: the diameters of the power generation tubes 105 are different from each other; or some of the power generation tubes 105 may have the same diameter and some of the power generation tubes 105 may have different diameters. Of course, it is understood that the power generation tubes 105 may be provided in different lengths. The power generation device is based on the optimal design of the relative size of the bottom area of the inner cavity of the shell 101 and the power generation tube 105, and the power generation tube 105 with one or more smaller bottom areas can change the vibration frequency of the vibration source input power generation device, so that the power generation device has the frequency modulation function, can collect more vibration energy, and solves the problem that the traditional low-frequency vibration energy is not easy to collect.
Further, for make full use of the space in the casing 101, improve the generated energy, power generation facility includes first electricity generation subassembly, and first electricity generation subassembly sets up in the casing 101, and first electricity generation subassembly includes first magnet 109 and first coil, and first magnet 109 is installed on the vibration subassembly, and the vibration subassembly reciprocates so that first magnet 109 cuts first coil, improves the collection efficiency of vibrational energy. For example, the elastic member 104 is provided as a spring, the first magnet 109, the first coil, the vibration element, and the elastic member 104 constitute a spring oscillator system, and the dimensions of the components in the spring oscillator system are optimally designed according to the vibration frequency characteristics of the vibration source, so that the spring oscillator system can generate vibration of a larger amplitude in the energy-containing frequency band of the vibration source as much as possible.
It can be understood that the power generation effect can be optimized by changing the diameter of the first coil, and the induced electromotive force generated by the power generation device can be improved by increasing the number of turns of the first coil, so that the power generation benefit is improved.
Specifically, if the first coil is disposed above the vibration assembly, the first magnet 109 should be disposed at an upper side of the vibration assembly. It will be appreciated that if the first coil is disposed below the vibrating assembly, then the first magnet 109 should be disposed on the underside of the vibrating assembly. As can be seen from the figures, in some examples, the first coil is disposed on the sidewall of the restraining tube 108, and specifically, the first coil is wound on the outer surface of the restraining tube 108.
The first magnet 109 and the second magnet 107 may be made of a rubidium magnet with strong magnetism, and the size of the first magnet 109 and the second magnet 107 may be selected appropriately according to the size of the power generation device and the vibration mode characteristics of the vibration source.
The power generation device comprises a rectification voltage stabilizing module, a first coil is connected with the rectification voltage stabilizing module through a wire, and a second coil is connected with the rectification voltage stabilizing module through a wire.
The power generation device comprises an electric storage module, wherein the first coil is connected with the electric storage module through a lead, and the second coil is connected with the electric storage module through a lead.
The power generation device is provided with a magnetism-proof material, specifically, a magnetism-proof material is provided on an inner wall of the housing 101.
The present invention will be described in detail with reference to a specific embodiment, and it should be noted that the following description is only illustrative and not restrictive.
The power generation device is provided with a first power generation assembly and a second power generation assembly, wherein in the first power generation assembly, the mass block 102 is arranged on the upper side of the first piston piece 103, the first magnet 109 is arranged on the lower side of the first piston piece 103, the elastic piece 104 is arranged as a compression spring, the first coil is wound on the outer side of the limiting pipe 108, and the limiting pipe 108 is arranged at the bottom of the inner cavity of the shell 101. In the uncompressed state of the elastic member 104, the bottom surface of the first magnet 109 is in the same plane as the upper end surface of the limiting tube 108, so as to ensure that the first magnet 109 can cut the first coil only by generating slight vibration.
In the second electricity generating module, one side surface of the second piston member 106 is tangent to the side wall surface of the inner cavity of the housing 101, the second magnet 107 is provided on the other side surface of the second piston member 106, and the second magnet 107 is not in contact with the inner wall of the electricity generating tube 105. When the second magnet 107 does not cut the second coil, two adjacent end surfaces between the second magnet 107 and the second coil are in the same plane, so that the second magnet 107 can cut the second coil only by generating slight vibration.
The power generation device is fixed on the bridge, the bridge receives external load to enable the bridge deck to vibrate up and down, the power generation device is excited by the vibration from the bridge deck, the vibration component in the first power generation component moves up and down to drive the first magnet 109 to enter and leave the first coil, and therefore magnetic flux passing through the first coil changes, and therefore induced current is generated. When the first piston member 103 moves downwards, air in the cavity of the housing 101 is compressed, air pressure in the cavity of the housing 101 increases, the compressed air pushes the second piston member 106 in the second power generation assembly to move, the second piston member 106 drives the second magnet 107 to move, the second magnet 107 enters the second coil, magnetic flux passing through the second coil changes, and induction current is generated. When the first piston member 103 moves upward, the air pressure in the inner cavity of the housing 101 decreases, and the external air pushes the second piston member 106 to move in the opposite direction under the force generated by the difference between the internal and external air pressures, and the second magnet 107 moves away from the second coil, so that the magnetic flux passing through the second coil changes and an induced current is generated.
It will be appreciated that by appropriate dimensioning of the housing 101 and the power generation tube 105, the speed of movement of the second piston member 106 can be varied, thereby varying the rate of change of the magnetic flux when the power generation tube 105 is in operation, optimizing the power generation benefits, i.e. the frequency of reciprocation of the second piston member 106 can be designed according to the vibration frequency of different vibration sources, and achieving the function of frequency modulation.
In the description herein, references to the terms "one embodiment," "some examples," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like, if any, 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.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. A power generation device for absorbing vibrational energy, characterized by: comprises that
A housing (101), the housing (101) being provided with an inner cavity;
a vibration assembly disposed in the housing (101), the vibration assembly comprising a mass (102) and a first piston member (103), the mass (102) being mounted with the first piston member (103);
an elastic member (104), the elastic member (104) being disposed in the housing (101), the elastic member (104) providing an upward elastic force to the vibration assembly;
at least one second power generation assembly disposed at a side wall of the housing (101), the second power generation assembly including a power generation tube (105), a second coil disposed at a side wall of the power generation tube (105), the power generation tube (105) communicating with an inner cavity of the housing (101), a second piston member (106) mounted with the second piston member (106), and a second magnet (107), the second piston member (106) reciprocating in the power generation tube (105) to cause the second magnet (107) to cut the second coil;
wherein the inner cavity of the housing (101), the first piston member (103), the power generation tube (105) and the second piston member (106) form a pressure chamber, and the second piston member (106) can reciprocate in the power generation tube (105) due to the air pressure change generated by the pressure chamber when the first piston member (103) moves up and down.
2. A power plant for absorbing vibrational energy according to claim 1, characterized in that: the power generation device comprises a first power generation assembly, the first power generation assembly is arranged in the shell (101), the first power generation assembly comprises a first magnet (109) and a first coil, the first magnet (109) is installed on the vibration assembly, and the vibration assembly moves up and down to enable the first magnet (109) to cut the first coil.
3. A power plant for absorbing vibrational energy according to claim 2, characterized in that: a limiting pipe (108) is arranged in the shell (101), and the elastic piece (104) is arranged in the limiting pipe (108).
4. A power plant for absorbing vibrational energy according to claim 3, characterized in that: the first coil is arranged on the side wall of the limiting pipe (108).
5. A power plant for absorbing vibrational energy according to claim 1, characterized in that: the second magnet (107) is not in contact with the inner wall of the power generation tube (105).
6. A power plant for absorbing vibrational energy according to claim 1 or 3, characterized in that: the power generation device comprises a rectification and voltage stabilization module.
7. A power plant for absorbing vibrational energy according to claim 1 or 3, characterized in that: the power generation device includes an electricity storage module.
8. A power plant for absorbing vibrational energy according to claim 1, characterized in that: the number of the power generation tubes (105) is set to be a plurality, and the sizes of the power generation tubes (105) have various specifications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037806.XA CN112117934A (en) | 2020-09-28 | 2020-09-28 | Power generation device for absorbing vibration energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011037806.XA CN112117934A (en) | 2020-09-28 | 2020-09-28 | Power generation device for absorbing vibration energy |
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| CN112117934A true CN112117934A (en) | 2020-12-22 |
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| CN202011037806.XA Pending CN112117934A (en) | 2020-09-28 | 2020-09-28 | Power generation device for absorbing vibration energy |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210747U (en) * | 2011-09-22 | 2012-05-02 | 浙江大学 | Generating set based on coupling effect of mean flow and alternating flow |
| CN107769508A (en) * | 2017-11-30 | 2018-03-06 | 中国航空发动机研究院 | A kind of magnetic force vibrates linear generating set |
| CN109578137A (en) * | 2018-12-04 | 2019-04-05 | 江苏公爵新能源汽车有限公司 | The linear engine distance increasing unit generator of the double free-piston two-way work doings of four stroke twin-tubs |
| CN109751555A (en) * | 2019-02-01 | 2019-05-14 | 泉州动态科技有限公司 | A kind of oscillatory type Self-generating LED lamp |
| CN110630682A (en) * | 2019-11-22 | 2019-12-31 | 潍柴动力股份有限公司 | Vibration damping device and method for controlling same |
| CN110985322A (en) * | 2020-01-02 | 2020-04-10 | 广州大学 | Wake flow galloping power generation device |
| CN211321185U (en) * | 2020-02-24 | 2020-08-21 | 徐霞 | Reciprocating resonance generator |
| CN213185927U (en) * | 2020-09-28 | 2021-05-11 | 广州大学 | Power generation device for absorbing vibration energy |
-
2020
- 2020-09-28 CN CN202011037806.XA patent/CN112117934A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210747U (en) * | 2011-09-22 | 2012-05-02 | 浙江大学 | Generating set based on coupling effect of mean flow and alternating flow |
| CN107769508A (en) * | 2017-11-30 | 2018-03-06 | 中国航空发动机研究院 | A kind of magnetic force vibrates linear generating set |
| CN109578137A (en) * | 2018-12-04 | 2019-04-05 | 江苏公爵新能源汽车有限公司 | The linear engine distance increasing unit generator of the double free-piston two-way work doings of four stroke twin-tubs |
| CN109751555A (en) * | 2019-02-01 | 2019-05-14 | 泉州动态科技有限公司 | A kind of oscillatory type Self-generating LED lamp |
| CN110630682A (en) * | 2019-11-22 | 2019-12-31 | 潍柴动力股份有限公司 | Vibration damping device and method for controlling same |
| CN110985322A (en) * | 2020-01-02 | 2020-04-10 | 广州大学 | Wake flow galloping power generation device |
| CN211321185U (en) * | 2020-02-24 | 2020-08-21 | 徐霞 | Reciprocating resonance generator |
| CN213185927U (en) * | 2020-09-28 | 2021-05-11 | 广州大学 | Power generation device for absorbing vibration energy |
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