CN115694249A - Energy taking device and energy taking method for electric field and vibration energy double capture - Google Patents
Energy taking device and energy taking method for electric field and vibration energy double capture Download PDFInfo
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- CN115694249A CN115694249A CN202211438878.4A CN202211438878A CN115694249A CN 115694249 A CN115694249 A CN 115694249A CN 202211438878 A CN202211438878 A CN 202211438878A CN 115694249 A CN115694249 A CN 115694249A
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Abstract
The invention belongs to the technical field of energy sources, and discloses an energy taking device and an energy taking method for electric field and vibration energy double capture. The invention has the beneficial effects that: the metal energy-taking electrode is used for capturing electric field energy and mechanical vibration energy in a power grid environment, and the metal energy-taking electrode is simple in structure, high in integration degree, good in energy-taking source complementarity and wide in application range.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of energy sources, in particular to an energy taking device and an energy taking method for electric field and vibration energy double capture.
[ background ] A method for producing a semiconductor device
Under the background of accelerating to construct novel electric power system, the quantity of distributed state monitoring device in the electric wire netting increases by a wide margin, and state monitoring sensing is more and more high to the requirement of power supply stability, reliability and economic nature. A power supply technology with reliable power supply, high device robustness, large output power, wide applicable scenes and good economic benefit is urgently needed. In order to meet the requirements, attention of people is paid to a self-energy-taking technology for supplying power to a monitoring device by capturing energy in the environment, and the common self-energy-taking technology comprises photovoltaic energy taking, current induction energy taking and the like. The two technologies can only capture energy in a single form, the power supply reliability and the output power are limited by the energy source, and when the energy source is greatly influenced by the natural environment or the system running state, the output of the energy source can be directly influenced.
The combined self-energy taking can utilize multiple energy sources to couple or respectively take energy, so that the power supply reliability and the output power are greatly improved. However, most of the current combined self-energy-taking technologies are simple combinations of several energy-taking technologies, such as combining magnetic field energy, thermal energy and vibration energy together. The integration degree of the energy-taking technology is low, the power supply volume and the weight are generally large, and in addition, the output characteristics of different energy-taking technologies have large difference, so that the design of a power supply management system is also difficult.
Energy taking of the friction nano generator and energy taking of electric field induction are both based on Maxwell displacement current energy taking technology, and both can be used for supplying power for the power grid state monitoring device. The energy source for acquiring energy by the friction nano generator is mechanical energy such as wind energy, vibration energy and the like existing in the power grid environment, and the energy source for acquiring energy by electric field induction is alternating current electric field energy generated by the operating voltage of the power grid. The two energy-taking technologies have many similarities in power supply structure and output characteristics, namely the cores of the two energy-taking modules comprise metal energy-taking electrodes, the outputs of the two energy-taking modules have the characteristics of alternating current, high capacitive impedance and the like, and the energy conversion efficiency needs to be improved through the power supply management module.
At present, the wind-driven friction nano generator mainly has two types of rotating structures based on an independent layer and fluttering structures based on a contact separation type, but the two types of structures have obvious defects: (1) The friction nanometer generator based on the independent layer type rotating structure has higher output, but larger starting wind resistance, and because two friction material layers need to directly carry out rotating friction in the working process, the friction material layers are easy to wear, and the service life of the device is shorter; (2) The friction nanometer generator based on the contact separation type flutter structure is unstable in output and low in power, and due to the fact that the friction nanometer generator unit is difficult to effectively package, the friction nanometer generator unit is easily interfered by factors such as rainwater and dust in actual work, and the robustness of the device is poor. The electric field induction energy taking is divided into a low potential and a high potential, in order to obtain enough output power, the area of a polar plate of the low potential electric field induction energy taking is generally large, the installation is inconvenient, and meanwhile, the wind resistance of the polar plate in actual engineering is poor due to the large size of the polar plate.
At present, no precedent for combining displacement current components generated based on a time-varying electric field and dielectric polarization in Maxwell displacement current to obtain energy exists at home and abroad, so that an energy obtaining device for capturing electric field and vibration energy is necessary to be provided, an electric field induction energy obtaining technology and a friction nano generator technology are combined, the electric field energy and the vibration energy existing in a power grid environment can be captured by the same power supply structure, the defects that the conventional self-energy obtaining power supply is single in energy obtaining source, low in power supply reliability, low in output power and required to be maintained regularly are overcome, and the self-energy obtaining of the power grid state monitoring device is high in reliability, high in power and free of maintenance and power supply through the combination of the electric field and the wind energy.
[ summary of the invention ]
The invention discloses an energy taking device and an energy taking method for electric field and vibration energy double capture, which can effectively solve the technical problems related to the background technology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an energy obtaining method for electric field and vibration energy double capture is characterized in that Maxwell displacement current is used as an energy obtaining principle, displacement current components generated based on time-varying electric fields and dielectric polarization are captured, and electric field and vibration energy existing in a power grid environment can be captured simultaneously.
As a preferred improvement of the invention: the movable polar plate is in reciprocating contact with the static polar plate in the electric field range.
The utility model provides a two captive devices of getting of electric field and vibration energy, includes shell, support, wind cup subassembly, rotary rod, pull rod, moves polar plate, first quiet polar plate and transmission line, the wind cup subassembly passes through the support is fixed on the shell, move the polar plate with first quiet polar plate is located in the inner chamber of shell, the rotary rod is installed on the wind cup subassembly, the front end of pull rod with rotary rod connects, the rear end of pull rod passes the shell with it connects to move the polar plate, the shell is installed near transmission line, thereby wind cup subassembly is rotatory to be driven it is close to or keeps away from to move the polar plate first quiet polar plate.
As a preferred improvement of the present invention: the shell is internally provided with a first static polar plate, the first static polar plate and the second static polar plate are oppositely arranged at intervals, the movable polar plate is positioned between the first static polar plate and the second static polar plate, and the first static polar plate and the second static polar plate reciprocate under the driving of the wind cup assembly.
As a preferred improvement of the invention: the front end of the pull rod is connected with the rotating rod through a first connecting rod, the pull rod is hinged to the first connecting rod, the rotating rod is hinged to the first connecting rod, and the pull rod is driven by the wind cup assembly to do reciprocating linear motion.
As a preferred improvement of the invention: the first static polar plate and the second static polar plate are fixed at the bottom of the inner wall of the shell, the bottom of the movable polar plate is hinged to the bottom of the inner wall of the shell, and the pull rod is connected with the top of the movable polar plate.
As a preferred improvement of the invention: the included angle between the first static polar plate and the second static polar plate is 30-60 degrees.
As a preferred improvement of the invention: the pull rod is connected with the top of the movable polar plate through a second connecting rod, the pull rod is hinged with the second connecting rod, and the movable polar plate is hinged with the second connecting rod.
As a preferred improvement of the present invention: the movable polar plate comprises an acrylic substrate and a metal energy-taking electrode, and the metal energy-taking electrode is fixed on the acrylic substrate.
As a preferred improvement of the present invention: and a foam buffer layer is arranged between the first static polar plate and the shell.
As a preferred improvement of the present invention: the distance between the shell and the power transmission line depends on the operating voltage grade of the power transmission line, and the requirement of insulation safety distance is met and can be 1.5-5m.
The invention has the following beneficial effects:
1. the invention takes Maxwell displacement current as an energy-taking principle, captures displacement current components generated based on time-varying electric field and dielectric polarization, can simultaneously capture electric field and vibration energy existing in the power grid environment, and has simple structure, high integration degree, good energy-taking source complementarity and wide application range compared with other combined self-energy-taking power supplies;
2. the wind cup and the pull rod structure designed by the invention can utilize mechanical vibration energy generated by wind energy to drive the rotary contact separation type friction nano power generation unit to work, so that the contradiction between the electric field energy capture requiring a large-size polar plate to improve the coupling capacitance and the vibration energy capture requiring a small-size and light-weight electrode to improve the energy taking efficiency is solved, the effective isolation of the double-capture energy taking device and the external environment is realized through a fully-packaged structure, the energy taking power supply can normally work under the bad conditions of rainwater, floating dust and the like, and the power supply reliability and robustness of the device are improved;
3. compared with the existing self-energy-taking power supply, the device has the advantages of simple structure, small volume and weight and easy actual engineering installation.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic diagram of an energy harvesting device with electric field and vibration energy double trapping according to the present invention;
FIG. 2 is an internal schematic view of the housing structure of the present invention;
FIG. 3 is a cross-sectional view of an energy harvester with dual electric field and vibration energy capture in accordance with the present invention;
FIG. 4 is a schematic diagram of the working principle of the present invention;
FIG. 5 is an output voltage waveform that captures electric field energy;
FIG. 6 is an output voltage waveform that captures vibrational energy;
FIG. 7 is a short circuit current waveform that traps electric field energy;
FIG. 8 is a short circuit current waveform capturing vibrational energy;
fig. 9 is a load-power variation curve of trapped electric field energy and vibrational energy.
In the figure: the method comprises the following steps of 1-a shell, 2-a support, 3-a wind cup assembly, 4-a rotating rod, 5-a pull rod, 6-a moving polar plate, 7-a first static polar plate, 8-a second static polar plate and 9-a power transmission line.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an energy taking method for electric field and vibration energy double capture, which takes Maxwell displacement current as an energy taking principle, captures displacement current components generated based on a time-varying electric field and dielectric polarization, generates electric energy by a movable polar plate in reciprocating contact with a static polar plate in an electric field range, and simultaneously captures an electric field and vibration energy existing in a power grid environment, and is specifically described as that the movable polar plate is in reciprocating contact with the static polar plate in the electric field range. Specifically, the electric field energy source is alternating current electric field energy generated by operating voltage (such as a power transmission line) in a power grid, the vibration energy mainly comes from energy (such as wind energy) in natural environment, the two kinds of energy are converted into alternating current electric energy through the double-capture energy-taking module (a movable polar plate and a static polar plate), and then the alternating current electric energy is rectified, stepped down, filtered, stabilized and the like through the power management module to supply power to the power grid monitoring device.
According to Maxwell-ampere law, displacement current exists in space of the electric field changing at any time, and coupling capacitance C exists between the metal energy-taking pole plate and the power transmission line ce By means of a displacement current I flowing therein ac Can capture the energy of an alternating current electric field, and a coupling capacitor C ce The size of the energy-obtaining pole plate is mainly related to parameters such as the size of the energy-obtaining pole plate, the distance between the power transmission line and the pole plate and the like. Because the electronegativity of the surface materials of the movable polar plate and the static polar plate is different, when the two materials are contacted, charge transfer occurs, the two surfaces have equal charges with different signs, and when the two polar plates are separated, a potential difference is generated on the two polar plates, so that the conversion from mechanical vibration energy to electric energy is realized.
The friction nano generator technology and the electric field induction energy taking technology have the core comprising metal energy taking electrodes, and the output has the characteristics of alternating current, high capacitance and high impedance, so that the combined energy taking mode of the electric field and the vibration energy can be realized by the movable polar plate in reciprocating contact with the static polar plate in the electric field range, and the stable power supply can be realized for components such as a power grid monitoring device.
Referring to fig. 1-4, the invention provides an energy taking device for electric field and vibration energy double capture, which includes a housing 1, a support 2, a wind cup assembly 3, a rotary rod 4, a pull rod 5, a movable polar plate 6, a first static polar plate 7 and a power transmission line 9, wherein the wind cup assembly 3 is fixed on the housing 1 through the support 2, the movable polar plate 6 and the first static polar plate 7 are located in an inner cavity of the housing 1, the rotary rod 4 is installed on the wind cup assembly 3, the front end of the pull rod 5 is connected with the rotary rod 4, the rear end of the pull rod 5 penetrates through the housing 1 to be connected with the movable polar plate 6, the housing 1 is installed near the power transmission line 9, and the wind cup assembly 3 rotates to drive the movable polar plate 6 to approach or depart from the first static polar plate 7. Specifically, the housing 1 has a protection effect, and prevents the movable pole plate 6 and the first stationary pole plate 7 from being damaged by rainwater and the like. The wind cup assembly 3 is mainly used for capturing wind energy, the movable polar plate 6 is driven by wind power to repeatedly contact the first static polar plate 7, and electric energy is generated according to the friction nano generator principle. The movable polar plate 6 and the first static polar plate 7 are arranged near the power transmission line 9 and generate electric energy according to an electric field induction energy taking technology.
Preferably, a second static polar plate 8 is further arranged in the housing 1, the first static polar plate 7 and the second static polar plate 8 are arranged at an interval, the movable polar plate 6 is located between the first static polar plate 7 and the second static polar plate 8, and the first static polar plate 7 and the second static polar plate 8 reciprocate under the driving of the wind cup assembly 3. Equivalently, two nanometer generators are arranged, and a better energy obtaining effect is achieved.
The front end of the pull rod 5 is connected with the rotating rod 4 through a first connecting rod, the pull rod 5 is hinged with the first connecting rod, the rotating rod 4 is hinged with the first connecting rod, and the pull rod 5 is driven by the wind cup assembly 3 to do reciprocating linear motion. Specifically, the pull rod 5 can do linear motion in a mode that two ends of the first connecting rod are hinged, and the movable pole plate 6 can do linear motion or rotary motion correspondingly, so that too much space is not occupied, and the size of the shell 1 can be reduced.
Preferably, the first static polar plate 7 and the second static polar plate 8 are fixed at the bottom of the inner wall of the shell 1, the bottom of the movable polar plate 6 is hinged at the bottom of the inner wall of the shell 1, the pull rod 5 is connected with the top of the movable polar plate 6, and an included angle between the first static polar plate 7 and the second static polar plate 8 is 30-60 degrees. As shown in the figure, a certain angle exists between the first static polar plate 7 and the second static polar plate 8, and the movable polar plate 6 is in reciprocating contact with the first static polar plate 7 and the second static polar plate 8 in a rotating manner, so that labor is saved. Because the movable pole plate 6 is hinged on the shell 1, the pull rod 5 does not need to provide supporting force for the movable pole plate, and only needs to provide pulling force for moving the movable pole plate left and right. In addition, the left side of the shell needs to overcome gravity to do work, and the right side of the shell does not need to overcome gravity to do work, so that the pulling force required in the whole process is small, and the pulling force is more reasonable than that of the first static polar plate 7 and the second static polar plate 8 which are arranged vertically to the bottom of the inner wall of the shell 1.
The pull rod 5 with the top of moving polar plate 6 is connected through the second connecting rod, just the pull rod 5 with the second connecting rod is articulated, move polar plate 6 with the second connecting rod is articulated. The rotating motion of the movable polar plate 6 can be realized by hinging the two ends of the second connecting rod. Instead of this, other ways may be used, such as connecting the pull rod 5 to the movable pole plate 6 by a rope.
The movable polar plate 6 comprises an acrylic substrate and a metal energy-taking electrode, the metal energy-taking electrode is fixed on the acrylic substrate, the first static polar plate 7 and the second static polar plate 8 are identical in structure and comprise the acrylic substrate and the metal energy-taking electrode. The movable polar plate 6, the first static polar plate 7 and the second static polar plate 8 are connected with electric wires and the like, and electric energy is led out. And a foam buffer layer is arranged between the first static polar plate 7 and the shell 1, so that the protection effect is achieved. The distance between the shell 1 and the power transmission line 9 depends on the operating voltage grade of the power transmission line, and the requirement of insulation safety distance is met.
In one embodiment, the wind cup assembly 3 is mounted on the end of the bracket 2 through a bearing, and the other end of the bracket 2 is fixed on the housing 1. The shell 1 is made of materials such as acrylic, has insulating and waterproof functions, and can realize effective isolation of the internal metal energy-taking polar plate from the external environment. The shell 1 is provided with a limiting hole, the pull rod 5 penetrates through the limiting hole to be connected with the movable polar plate 6, and the limiting hole can ensure that the pull rod 5 does linear reciprocating motion. The bottom of the movable polar plate 6 is arranged on a rotating bearing, and can rotate around the rotating bearing under the driving of the pull rod 5, so that the first static polar plate 7 and the second static polar plate 8 are repeatedly contacted and separated. The first static polar plate 7 and the second static polar plate 8 are respectively arranged at two sides in the shell 1, the included angle between the first static polar plate and the second static polar plate is alpha, and the value range is 40-50 degrees. And foam buffer layers are respectively arranged between the first static polar plate 7 and the shell 1 and between the second static polar plate 8 and the shell 1, the thickness of the foam buffer layers is d, and the value range is 1-2 mm. The movable polar plate 6 and the first static polar plate 7 and the second static polar plate 8 are in collision contact, the foam buffer layer can play a role in protection, and the foam buffer layer also plays a role in buffering, so that the movable polar plate 6 and the first static polar plate 7 and the second static polar plate 8 are in contact with each other more tightly, and the energy taking effect can be increased by increasing the contact area. The shell 1 can be arranged on the low-voltage side of a transmission tower and the like, and the distance between the shell 1 and the transmission line 9 can meet the requirement of insulation safety distance according to the operating voltage grade of the transmission line 9.
The first static polar plate 7 and the second static polar plate 8 are completely the same except that the installation positions are different, and both consist of a foam buffer layer, an acrylic substrate, a metal energy-taking electrode and an insulating friction material layer, wherein the foam buffer layer can be made of eva, epe and the like, so that the effective contact area of the movable polar plate 6 when the movable polar plate is in contact with and separated from the first static polar plate 7 and the second static polar plate 8 can be increased besides the buffering and damping effects, and the output of the friction nano-generator is improved. The middle of the movable polar plate 6 is an acrylic base plate, metal energy-taking electrodes are respectively pasted on two sides of the acrylic base plate, and insulating friction material layers, such as polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinyl chloride, polypropylene and polyimide, with different electronegativities are coated on the metal energy-taking electrodes on two sides, the first static polar plate 7 and the metal energy-taking electrode material in the second static polar plate 8. In order to ensure that the pull rod 5 can work normally, the height of the movable polar plate 6 is slightly larger than that of the first static polar plate 7, and the first static polar plate 7 and the second static polar plate 8 are the same in size.
The principle of the double-capture combined energy taking device for capturing the mechanical vibration energy is as follows: the first static polar plate 7, the second static polar plate 8 and the movable polar plate 6 respectively form 2 groups of completely same friction nanometer generator units, and compared with a friction nanometer generator with a bipolar plate structure, the design can improve the space utilization rate of the device and increase the output power of a power supply. After the wind cup assembly 3 captures wind energy, the rotating motion is converted into reciprocating linear motion through the rotating rod 4 and the pull rod 5, and the movable polar plate 6 is driven to repeatedly contact and separate with the first static polar plate 7 and the second static polar plate 8. Compared with a vertical contact separation type structure, the structure can reduce the influence of the gravity of the polar plate, thereby solving the contradiction that the electric field energy capture needs a large-size polar plate to improve the coupling capacitance, and the vibration energy capture needs a small-size and light-weight electrode to improve the energy taking efficiency, and improving the efficiency of capturing mechanical vibration energy. The pull rod 5 and the movable polar plate 6 are both made of light materials, so that the capability of a power supply for capturing breeze energy is improved. Because the electronegativity of the surface materials of the movable polar plate 6, the first static polar plate 7 and the second static polar plate 8 is different, when the two materials are contacted, electric charge transfer occurs, the two surfaces have equal-quantity charges with different signs, and when the two polar plates are separated, an electric potential difference is generated on the two polar plates, so that the conversion from mechanical vibration energy to electric energy is realized.
The principle of electric field energy capture of the double-capture combined energy-taking device is as follows: according to Maxwell-ampere law, displacement current exists in space of the electric field changing at any time, and coupling capacitance C exists between the metal energy-taking electrode and the power transmission line 9 ce By means of a displacement current I flowing therein ac Can capture the energy of an alternating current electric field, and a coupling capacitor C ce The size of the energy-obtaining pole plate is mainly related to parameters such as the size of the energy-obtaining pole plate, the distance between the power transmission line and the pole plate and the like.
Preferably, in addition to the structure of the wind cup assembly 3 and the pull rod 5, the wind cup assembly 3 (wind turbine) and an eccentric shaft can also be used to convert wind energy into mechanical energy. Further, the wind cup assembly 3 can rotate horizontally or vertically and has the capability of capturing other forms of mechanical energy such as raindrops energy. The wind cup assembly 3 can be a single wind cup, and can also be formed into a wind cup array by vertically distributing a plurality of wind cups, so that the torque in the rotating process is improved. The housing 1 may be a triangular prism as shown in the figure, or may be a rectangular parallelepiped, a cylinder, or other structures. The grid-shaped or net-shaped metal energy-taking electrode can be used for replacing the flat-plate type metal energy-taking polar plate, so that the coupling capacitance between the energy-taking polar plate and the power transmission line is increased, and the capacity of capturing electric field energy is improved. The size of the metal energy taking electrode in the energy taking module can be increased or reduced according to the installation condition and the energy taking power requirement. Besides the power supply of the high-voltage power grid state monitoring device, the invention is also suitable for other applicable scenes with the energy acquisition of alternating current electric fields and mechanical energy. The metal energy-taking electrode surfaces of the first static polar plate 7 and the second static polar plate 8 can be coated with an insulating film material different from that of the movable polar plate 6, and the insulating film material can be one of polytetrafluoroethylene, nylon, polyethylene terephthalate and the like. The energy taking device can form a power supply array through a series-parallel connection structure, and the integral output power of the power supply is improved.
In order to more intuitively illustrate the effect of the invention, the capability of the device for capturing electric field energy and mechanical energy is verified, and a prototype of the energy taking device is prepared. In this prototype, the size of the energy plate was 20 × 20cm, and the materials of the contact surface in the friction nano power generation unit were selected from PTFE (0.1 mm) and aluminum (0.1 mm), wherein the surface of PTFE was roughened for increasing the output. In the experiment, the operating voltage level of the single-phase power transmission line is 110kV, the frequency is 50Hz, the distance between the shell 1 and the power transmission line is 1.5m, and the frequency of mechanical vibration is 1Hz.
Fig. 5 and 6 are output voltage waveforms of electric field energy and vibration energy captured by the energy-taking device, respectively, and both the electric field energy and the vibration energy are converted into output with a peak value of about 1.5kV after passing through the energy-taking device, so that the electric energy is converted from the electric field energy and the vibration energy, and the electric energy is rectified, stepped down, filtered, stabilized and the like by a power management system to supply power to a load. Fig. 7 and 8 are waveforms of short-circuit current for trapping electric field energy and vibration energy of a prototype of the energy-taking device, respectively, in which the peak value of displacement current flowing through the energy-taking device is about 11.2 μ a when electric field energy is trapped, and the positive peak value of displacement current is about 25.4 μ a when vibration energy is trapped.
Fig. 9 is a load-power variation curve of the energy-extracting device for capturing electric field energy and vibration energy, wherein the maximum instantaneous output power is obtained at 150M Ω and 90.33mW when the electric field energy is captured, and the maximum instantaneous output power is obtained at 30M Ω and 274.12mW when the vibration energy is captured.
The invention has the beneficial effects that:
1. the Maxwell displacement current is used as an energy obtaining principle for the first time, the displacement current component generated based on a time-varying electric field and dielectric polarization is captured, the electric field and the vibration energy existing in the power grid environment can be captured simultaneously, and the purpose that two kinds of energy are captured simultaneously based on the same power supply structure is achieved.
2. The rotating contact separation type structure is utilized to solve the contradiction that electric field energy capture needs a large-size pole plate to improve the coupling capacitance, and vibration energy capture needs a small-size and light-weight electrode to improve the energy extraction efficiency.
3. The utility model provides a wind drive friction nanometer power generation unit entirely new is proposed, catches wind energy through the wind cup structure to encapsulate the module of getting energy through the shell, make friction nanometer power generation unit can avoid the influence of adverse factor such as rainwater and dust, promote the robustness of getting energy device.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the specification and the embodiments, which are fully applicable to various fields of endeavor for which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. An energy taking method for electric field and vibration energy double capture is characterized in that: the method comprises the steps of capturing displacement current components generated based on a time-varying electric field and dielectric polarization by taking Maxwell displacement current as an energy obtaining principle, and capturing electric field and vibration energy existing in a power grid environment.
2. A method of extracting energy from double traps of electric field and vibration energy as defined in claim 1, wherein: the movable polar plate is in reciprocating contact with the static polar plate in the electric field range.
3. An energy taking device for capturing electric field and vibration energy is characterized in that: the wind cup assembly is characterized by comprising a shell (1), a support (2), a wind cup assembly (3), a rotary rod (4), a pull rod (5), a movable polar plate (6), a first static polar plate (7) and a power transmission line (9), wherein the wind cup assembly (3) is fixed on the shell (1) through the support (2), the movable polar plate (6) and the first static polar plate (7) are located in an inner cavity of the shell (1), the rotary rod (4) is installed on the wind cup assembly (3), the front end of the pull rod (5) is connected with the rotary rod (4), the rear end of the pull rod (5) penetrates through the shell (1) to be connected with the movable polar plate (6), and the shell (1) is installed near the power transmission line (9);
the wind cup assembly (3) rotates to drive the movable polar plate (6) to be close to or far away from the first static polar plate (7).
4. An electric field and vibrational energy dual capture energy harvester according to claim 3 and further comprising: still be equipped with second static polar plate (8) in shell (1), first static polar plate (7) with second static polar plate (8) is relative the interval setting, it is located to move polar plate (6) first static polar plate (7) with between second static polar plate (8), and be in under the drive of wind cup subassembly (3) first static polar plate (7) with reciprocating motion between second static polar plate (8).
5. An electric field and vibrational energy dual capture energy harvester according to claim 4 and further comprising: the front end of the pull rod (5) is connected with the rotating rod (4) through a first connecting rod, the pull rod (5) is hinged to the first connecting rod, the rotating rod (4) is hinged to the first connecting rod, and the pull rod (5) is driven by the wind cup assembly (3) to do reciprocating linear motion.
6. An electric field and vibrational energy dual capture energy harvester according to claim 5 wherein: the first static polar plate (7) and the second static polar plate (8) are fixed at the bottom of the inner wall of the shell (1), the bottom of the movable polar plate (6) is hinged to the bottom of the inner wall of the shell (1), and the pull rod (5) is connected with the top of the movable polar plate (6).
7. An electric field and vibrational energy dual capture energy harvester according to claim 6 and further comprising: the included angle between the first static polar plate (7) and the second static polar plate (8) is 30-60 degrees.
8. An electric field and vibrational energy dual capture energy harvester according to claim 6 and further comprising: the pull rod (5) is connected with the top of the movable polar plate (6) through a second connecting rod, the pull rod (5) is hinged with the second connecting rod, and the movable polar plate (6) is hinged with the second connecting rod.
9. An electric field and vibrational energy dual trapping energy harvester according to claim 3 and further comprising: the movable polar plate (6) comprises an acrylic substrate and a metal energy-taking electrode, and the metal energy-taking electrode is fixed on the acrylic substrate.
10. An electric field and vibrational energy dual capture energy harvester according to claim 3 and further comprising: a foam buffer layer is arranged between the first static polar plate (7) and the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211438878.4A CN115694249A (en) | 2022-11-17 | 2022-11-17 | Energy taking device and energy taking method for electric field and vibration energy double capture |
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| CN202211438878.4A CN115694249A (en) | 2022-11-17 | 2022-11-17 | Energy taking device and energy taking method for electric field and vibration energy double capture |
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