CN110242006B - Magnetohydrodynamic power generation floor and preparation method thereof - Google Patents
Magnetohydrodynamic power generation floor and preparation method thereof Download PDFInfo
- Publication number
- CN110242006B CN110242006B CN201910542047.3A CN201910542047A CN110242006B CN 110242006 B CN110242006 B CN 110242006B CN 201910542047 A CN201910542047 A CN 201910542047A CN 110242006 B CN110242006 B CN 110242006B
- Authority
- CN
- China
- Prior art keywords
- electrode layer
- power generation
- base
- magnetohydrodynamic
- floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 95
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000011553 magnetic fluid Substances 0.000 claims description 40
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 17
- 229920002799 BoPET Polymers 0.000 claims description 15
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 15
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims 2
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims 2
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims 2
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000000975 co-precipitation Methods 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000005415 magnetization Effects 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/02—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a magnetohydrodynamic power generation floor and a preparation method thereof, wherein the magnetohydrodynamic power generation floor comprises a floor body, a connecting module arranged in the floor body and at least two power generation modules electrically connected through the connecting module, the power generation modules comprise a base provided with grooves, a first electrode layer and a second electrode layer which are arranged in the base, and a permanent magnet which is arranged above the base and is propped against the inner surface of the floor body, the first electrode layer and the grooves form a sealed cavity, magnetofluid is arranged in the sealed cavity, and the second electrode layer is arranged above the first electrode layer at intervals. According to the magnetohydrodynamic power generation floor, as the permanent magnet and the magnetohydrodynamic adopt a non-contact pushing mode, microscopic instability caused by human operation errors is greatly reduced, and the magnetohydrodynamic power generation floor has more stable voltage output.
Description
Technical Field
The invention relates to the field of application of nano generators, in particular to a magnetohydrodynamic power generation floor and a preparation method thereof.
Background
The Nano Generator (NG) is a generator manufactured by using a novel nano technology capable of self-supplying energy, and belongs to the smallest generator in the world. It is a technical device capable of converting mechanical energy or thermal energy caused by a small physical change into electric energy. There are three main modes of nano-generators, namely piezoelectric nano-generator (PENG), triboelectric nano-generator (TENG) and pyroelectric nano-generator (PNG). The piezoelectric nano generator has lower conversion and output; although the voltage of the friction type nano generator can reach hundreds of volts, the current is lower due to the fact that the internal resistance of the friction type nano generator is too large; the pyroelectric nano generator is mainly used in places where temperature fluctuates with time, has larger voltage, but has small output current, and is mainly used for manufacturing an active sensor to detect temperature fluctuation.
In the prior art, when the floor is used for generating electricity, the floor is in direct contact with the electricity generation film, and the driving force of a person stepping on the floor is unstable, so that the displacement on the microscopic level is larger, the voltage fluctuation of the electricity generation floor is larger, and the application range of the electricity generation floor is limited greatly.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a magnetohydrodynamic power generation floor and a preparation method thereof, which aims to solve the problem of larger voltage fluctuation of the existing power generation floor.
The technical scheme of the invention is as follows:
the magnetohydrodynamic power generation floor comprises a floor body, a connecting module arranged in the floor body, and at least two power generation modules electrically connected through the connecting module, wherein each power generation module comprises a base provided with a groove, a first electrode layer and a second electrode layer which are arranged in the base, and a permanent magnet which is arranged above the base and is propped against the inner surface of the floor body, the first electrode layer and the groove form a sealed cavity, magnetohydrodynamic is arranged in the sealed cavity, and the second electrode layer is arranged above the first electrode layer at intervals; the floor body drives the permanent magnet to move under the action of external force, the permanent magnet controls the magnetic fluid to move in the sealed cavity, and the magnetic fluid drives the first electrode layer and the second electrode layer to generate electricity through friction.
The magnetohydrodynamic power generation floor board comprises a first electrode layer, a second electrode layer and a third electrode layer, wherein the first electrode layer comprises a first PET film and a first ITO film which are sequentially laminated from bottom to top along the opening direction of the groove.
The magnetohydrodynamic power generation floor comprises a first electrode layer, a second electrode layer and a third electrode layer, wherein the second electrode layer comprises a PDMS film, a second ITO film and a second PET film which are sequentially laminated from bottom to top along the opening direction of the groove, the second electrode layer is arranged above the first electrode layer at intervals, and the surfaces of the PDMS film and the first ITO film are respectively an upper friction surface and a lower friction surface during friction power generation.
The magnetohydrodynamic power generation floor comprises a base and a top seat which are connected with each other, wherein the groove and the first electrode layer are arranged in the base, the second electrode layer is arranged on the top seat, a guide hole is further formed in the base, a guide column matched with the guide hole is arranged on the top seat, and an adjusting gasket used for adjusting the gap between the base and the top seat is sleeved on the guide column.
The magnetohydrodynamic power generation floor is characterized in that an elastic bracket for fixing the permanent magnet is further arranged on the top seat.
The magnetohydrodynamic power generation floor comprises an elastic support, a plurality of supporting legs and a fixed disc, wherein one end of the elastic support uniformly surrounds and is fixed on the top seat, and the fixed disc is fixedly connected with the other end of the supporting legs and is used for placing a permanent magnet.
The magnetohydrodynamic power generation floor board, wherein the power generation module further comprises a first output wire connected with the first electrode layer, a second output wire connected with the second electrode layer, and the first output wire and the second output wire respectively extend out from the side ends of the base and the top seat; the connecting module is provided with a wire access port connected with the first output wire and the second output wire.
The magnetohydrodynamic power generation floor is characterized in that a positioning column is further arranged on the power generation module, a power generation module positioning hole matched with the positioning column is formed in the connection module, and a connection hole and a connection pin used for connecting a plurality of connection modules together are further formed in the connection module.
The magnetofluid power generation floor comprises a base carrier liquid and nano ferroferric oxide particles dispersed in the base carrier liquid.
The preparation method of the magnetohydrodynamic power generation floor is characterized by comprising the following steps:
providing a base with a groove, arranging a first electrode layer above the groove, forming a sealed cavity with the first electrode layer, and injecting magnetic fluid into the sealed cavity;
a second electrode layer is arranged above the first electrode layer at intervals, and permanent magnets are arranged above the base at intervals, so that a power generation module is manufactured;
and placing at least two power generation modules in the floor body after being electrically connected through a connecting module to prepare the magnetohydrodynamic power generation floor.
The beneficial effects are that: compared with the existing power generation floor, the magnetohydrodynamic power generation floor provided by the invention has the advantages that the microcosmic instability caused by human stepping errors is greatly reduced due to the non-contact pushing mode between the permanent magnet and the magnetofluid, and more stable voltage output is realized; the power generation floor has the advantages of simple structure, low processing cost and low environmental requirement, can be applied to extreme environments such as dust, underwater and the like, and greatly improves the stability, applicability, reliability and economy of the power generation floor.
Drawings
FIG. 1 is a schematic view of a magnetohydrodynamic power generation floor according to a preferred embodiment of the present invention.
Fig. 2 is a schematic view of the structure of the power generation module according to the present invention.
Fig. 3 is an exploded view of the power generation module of the present invention.
Fig. 4 is an exploded view of the base of the present invention.
Fig. 5 is a schematic view of a first structure of the first electrode layer according to the present invention.
Fig. 6 is a schematic diagram of a second structure of the first electrode layer in the present invention.
Detailed Description
The invention provides a magnetohydrodynamic power generation floor and a preparation method thereof, which are used for making the purposes, technical schemes and effects of the invention clearer and more definite, and are further described in detail below. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-4, the present embodiment provides a magnetohydrodynamic power generation floor, wherein, as shown in the drawing, the magnetohydrodynamic power generation floor comprises a floor body (not shown), a connection module 200 disposed inside the floor body, and at least two power generation modules 100 electrically connected by the connection module 200, the power generation modules comprise a base 40 provided with a groove 13, a first electrode layer 10 and a second electrode layer 20 disposed inside the base 40, and a permanent magnet 30 disposed above the base 40 and abutting against the inner surface of the floor body, the first electrode layer 10 and the groove 13 form a sealed cavity, a magnetofluid (not shown) is disposed in the sealed cavity, and the second electrode layer 20 is disposed above the first electrode layer 10 at intervals; the floor body drives the permanent magnet 30 to move under the action of external force, the permanent magnet 30 is used for controlling the magnetic fluid to move in the sealed cavity, and the magnetic fluid drives the first electrode layer 10 and the second electrode layer 20 to generate electricity through friction.
In this embodiment, the floor body is made of a polymer material with a certain elasticity, and when the floor body is stepped on, the permanent magnet is propped against the inner surface of the floor body, so that the floor body can drive the permanent magnet in the power generation module to move up and down under the action of external force, and when the permanent magnet moves downwards, the distance between the permanent magnet and the magnetic fluid is gradually reduced; when the permanent magnet moves upwards, the distance between the permanent magnet and the magnetic fluid is gradually increased.
Specifically, when the distance between the permanent magnet 30 and the magnetic fluid in the sealed cavity is long, the magnetic fluid is not magnetized, the magnetic fluid does not generate acting force on the first electrode layer, and at this time, due to the gap between the first electrode layer 10 and the second electrode layer 20, no collision and friction occur, and no electric energy is generated; when the distance between the permanent magnet 10 and the magnetic fluid is short, the magnetic fluid is magnetized, and the magnetic fluid generates an acting force on the first electrode layer, so that the first electrode layer 10 is gradually deformed, the gap between the first electrode layer 10 and the second electrode layer 20 is gradually reduced, collision and friction occur, and the power generation module generates electric energy.
In some embodiments, the magnetic attraction force of the permanent magnet can be ensured to be effective when the magnetization distance between the permanent magnet 30 and the magnetic fluid is within 1-20mm, that is, the power generation can be realized when the permanent magnet approaches the magnetic fluid to be within 1-20 mm. When the permanent magnet moves in a direction away from the magnetic fluid after reaching the magnetization distance, the magnetic fluid is demagnetized, the acting force of the magnetic fluid on the first electrode layer is weakened and disappears, the first electrode layer gradually recovers deformation, and finally, the gap between the first electrode layer and the second electrode layer recovers. The magnetization and demagnetization of the magnetic fluid can be controlled through the movement of the permanent magnet, so that collision and friction continuously occur between the first electrode layer and the second electrode layer, and electric energy is generated. In this embodiment, since the permanent magnet is not in contact with the first electrode layer (or the magnetic fluid), the non-contact pushing manner greatly reduces microscopic instability caused by human operation errors, and further improves voltage output stability of the power generation floor.
In some specific embodiments, the permanent magnet is a permanent magnet.
In some embodiments, the at least two power generation modules may be connected in series or in parallel by the connection module. Specifically, when the magnetohydrodynamic power generation floor needs to obtain larger current, a plurality of power generation modules can be connected in parallel through a connecting module; when the magnetohydrodynamic power generation floor needs to obtain larger voltage, a plurality of power generation modules can be connected in series.
In some embodiments, as shown in fig. 4, the first electrode layer 10 includes a first PET (polyethylene terephthalate) film 11 and a first ITO (indium tin oxide) film 12, which are sequentially stacked from bottom to top along the opening direction of the recess; the second electrode layer 20 includes a PDMS (polydimethylsiloxane) film 21, a second ITO film 22, and a second PET film 23 that are sequentially stacked from bottom to top along the opening direction of the groove, where the second electrode layer 20 is disposed above the first electrode layer 10 at intervals, that is, a gap is disposed between the first electrode layer and the second electrode layer, and the surface of the PDMS film 23 and the surface of the first ITO film 12 are respectively an upper friction surface and a lower friction surface during friction power generation. In this embodiment, the first PET film in the first electrode layer is in direct contact with the magnetic fluid, and seals the magnetic fluid in the groove of the base.
In this embodiment, after the magnetic fluid is magnetized by the permanent magnet, the magnetic fluid moves along the direction of the permanent magnet and applies an acting force to the first electrode layer, the first electrode layer deforms under the acting force and collides with the second electrode layer to rub, and due to the difference of friction electric polarities, electrons are easily lost on the surface of the first ITO film, and electrons are easily obtained on the surface of the PDMS film; therefore, when the magnetic fluid drives the first ITO film and the PDMS film to collide and rub, electrons are transferred from the surface of the first ITO film to the surface of the PDMS film, so that the two film surfaces carry charges with equal quantity and opposite signs, namely frictional charges; when the upper friction surface and the lower friction surface (the surface of the first ITO film and the surface of the PDMS film) are slowly separated under the action of losing external force, potential difference is generated between the two friction surfaces, and due to electrostatic induction, the negatively charged PDMS film repels electrons on the carried electrode, and if the PDMS film and the carried electrode of the first ITO film are connected through a load at the moment, the electrons flow under the driving of the potential difference so as to balance the potential difference of the upper friction surface and the lower friction surface, namely, current is generated in an external circuit. When the external force is no longer applied and the gap distance between the two friction surfaces reaches the maximum, the upper friction surface, the lower friction surface and the respective carried electrode are in an electrostatic balance state, the external circuit does not move electrons, and the current is zero.
Compared with the existing power generation floor, the magnetohydrodynamic power generation floor provided by the embodiment adopts a non-contact pushing mode, so that microscopic instability caused by human operation errors is greatly reduced, and more stable voltage output is realized; the magnetic fluid power generation floor has the advantages of simple structure, low processing cost and low environmental requirement, can be applied to extreme environments such as dust, underwater and the like, and greatly improves the stability, reliability and economy of the magnetic fluid power generation floor. Furthermore, the magnetohydrodynamic power generation floor provided by the embodiment has the advantages of simple structure, compact design, relatively independent parts, convenient maintenance and overhaul, good interchangeability and capability of realizing modularization, serialization and rapid design.
In some embodiments, as shown in fig. 2-3, the first electrode layer 10 is connected to a first output wire 14, and the second electrode layer 20 is connected to a second output wire 24, and the first output wire and the second output wire 24 are connected to the same capacitor. In this embodiment, after the first output wire and the second output wire are connected, the energy for the magnetohydrodynamic floor friction power generation is output and stored in the capacitor.
In some embodiments, the first output lead is attached to a side of the first PET film that is adjacent to the first TIO film, and the second output lead is attached to a side of the second PET film that is adjacent to the second ITO film.
In a specific embodiment, as shown in fig. 5, in order to facilitate the rapid and efficient transmission of the energy generated by the flexible power generation film of the magnetic viscous body to the external circuit, the first output wire is attached to the side of the first PET film, which is close to the first TIO film, in the form of an "arch" fold line; the second output lead is also attached to one surface, close to the second ITO film, of the second PET film in the form of an arc-shaped fold line. The first output lead and the second output lead adopt the design mode of the bow-shaped fold line, thereby being convenient for current transmission, being beneficial to deformation and recovery deformation and prolonging the service life thereof.
In another specific embodiment, as shown in fig. 6, to facilitate the rapid and efficient transmission of the energy generated by the flexible power generation film of the magnetic viscous body to the external circuit, the first output wire is attached to the surface of the first PET film, which is close to the first ITO film, in a ring shape; the second output lead is also attached to one surface, close to the second ITO film, of the second PET film in an annular mode.
In some embodiments, the first output wire is directly electrically connected to the first ITO film, and the second output wire is directly electrically connected to the second ITO film.
In some embodiments, the first output wire and the second output wire are independently selected from one of silver, copper, gallium indium alloy, or gallium indium tin alloy, but are not limited thereto.
In some embodiments, the magnetic fluid includes a base carrier liquid and nano-ferroferric oxide particles dispersed in the base carrier liquid. In some embodiments, the base carrier liquid is selected from one or more of deionized water, kerosene, engine oil, phosphate solution, and fluoroether oil, but is not limited thereto.
Specifically, the nano ferroferric oxide particles are prepared by adopting a solid phase reaction method or a chemical coprecipitation method, preferably, the nano ferroferric oxide particles are prepared by adopting the chemical coprecipitation method, and compared with the solid phase reaction method, the chemical coprecipitation method can obtain purer nano ferroferric oxide particles without generating other impurity particles. The nano ferroferric oxide particles are dispersed in the base carrier liquid through a dispersing agent, and when no influence of a magnetic field exists, the nano ferroferric oxide particles conduct disordered movement in the base carrier liquid, and the nano ferroferric oxide particles are similar to Brownian movement. The nano-sized ferroferric oxide particles are magnetized and then regularly move due to the influence of the magnetic field of the permanent magnet, and the overall direction of the nano-sized ferroferric oxide particles is oriented towards the permanent magnet 30 (although the nano-sized ferroferric oxide particles are not necessarily oriented towards the permanent magnet although being influenced by the magnetic attraction force. Therefore, the magnitude of the force of the magnetic fluid on the first electrode layer can be controlled by the minimum distance between the permanent magnet and the magnetic fluid.
In this embodiment, the higher the volume ratio of the nano ferroferric oxide to the base carrier liquid is, the higher the output voltage is, otherwise, the lower the output voltage is; preferably, the volume ratio of the nano ferroferric oxide to the base carrier liquid is 20% -50%. In a specific embodiment, the volume ratio of the nano ferroferric oxide particles to the base carrier liquid has the following relation with voltage: on a 2×2 cm film, the output voltage was about 60V when the volume fraction was 50% (magnetorheological fluid state); when the volume fraction is 30%, the output voltage is about 50V; when the volume fraction is 25%, the output voltage is about 45V; when the volume fraction is 20%, the output voltage is about 35V.
In some embodiments, as shown in fig. 4, the base 40 includes a base 41 and a top seat 42 that are connected to each other, the groove 13 and the first electrode layer 10 are both disposed in the base 41, the second electrode layer 20 is disposed on the top seat 42, a guide hole 43 is further disposed on the base 41, a guide post 44 adapted to the guide hole 43 is disposed on the top seat 42, and an adjusting pad for adjusting the gap between the base 41 and the top seat 42 is sleeved on the guide post 44.
In the present embodiment, the gap size between the first electrode layer and the second electrode layer can be adjusted by adjusting the size of the gap between the base 41 and the top base 42; specifically, the distance between the base 41 and the top seat 42 is increased by increasing the thickness of the adjustment spacer, thereby increasing the width of the gap between the first electrode layer and the second electrode layer; conversely, the width of the gap may be reduced. It is of course also possible to adjust the width of the gap by means of an adjusting screw, for example, a screw and a screw hole are provided on the base 41 and the top seat 42, respectively, an adaptive screw hole is provided between the screw and the screw hole, and the width of the gap is adjusted by changing the screwing depth of the adjusting screw.
In some embodiments, the groove is disposed on the base 41, the base 41 fixes the first electrode layer 10 through a fixing fixture, and a sealing groove is disposed on the contact surface between the base 41 and the first electrode layer 10, and a sealing gasket or a sealing magnet may be disposed in the sealing groove to seal the magnetic fluid.
In some embodiments, as shown in fig. 1-3, an elastic bracket 50 for fixing the permanent magnet is further provided on the top base. In a specific embodiment, the elastic support 50 includes a plurality of supporting legs 51 having one end uniformly surrounding and fixed on the top base, and a fixing plate 52 fixedly connected to the other end of the supporting legs for placing the permanent magnet 30. In particular, the support legs are all made of elastic materials. The elastic support can drive the permanent magnet to move up and down under the action of external force.
In some embodiments, as shown in fig. 1-3, the first output lead 14 and the second output lead 24 extend from the side ends of the base and top mount, respectively; the connection module 200 is provided with a wire inlet 201 connected to the first output wire and the second output wire.
In some embodiments, as shown in fig. 1-3, the power generation module 100 is further provided with a positioning post 101, the connection module 200 is provided with a power generation module positioning hole 202 adapted to the positioning post 101, and the connection module 200 is further provided with a connection hole 203 and a connection pin 204 for connecting a plurality of connection modules together.
In some embodiments, there is also provided a method of preparing a magnetohydrodynamic power generation floor, comprising the steps of:
providing a base with a groove, arranging a first electrode layer above the groove, forming a sealed cavity with the first electrode layer, and injecting magnetic fluid into the sealed cavity;
a second electrode layer is arranged above the first electrode layer at intervals, and permanent magnets are arranged above the base at intervals, so that a power generation module is manufactured;
and placing at least two power generation modules in the floor body after being electrically connected through a connecting module to prepare the magnetohydrodynamic power generation floor.
Specifically, in order to obtain purer nano ferroferric oxide particles, a chemical coprecipitation method is adopted to prepare the nano ferroferric oxide particles, and a preset amount of nano ferroferric oxide particles are dispersed into a base carrier liquid according to the power generation capacity requirement of a single power generation module to obtain magnetic fluid;
according to the paving size and the power generation requirement of actual construction, the number of the power generation modules is designed to be 2N, and the number of the connecting modules is designed to be N, wherein N is an integer greater than or equal to 1;
stretching a polyethylene terephthalate material to form a polyethylene terephthalate film, leading out a wire on the surface of the PET film or spraying a liquid metal wire through 3D printing, and preparing an ITO film attached to the inner surface of the PET film through magnetron sputtering indium tin oxide to obtain a PET-ITO composite film;
injecting the magnetic fluid into a groove of a pre-provided base, and fixing and sealing a groove opening of a PET-ITO composite film (a first electrode layer) through a fixing clamp, wherein the PET film in the first electrode layer is in direct contact with the magnetic fluid;
attaching a layer of polydimethylsiloxane film to the inner surface of an ITO film in another PET-ITO composite film to obtain a second electrode layer, and fixing the second electrode layer in a pre-provided top seat;
the top seat and the base are assembled through the matching of the guide holes and the guide columns, so that the surface of the PDMS film and the surface of the first ITO film are respectively an upper friction surface and a lower friction surface during friction power generation;
an elastic support and a permanent magnet are arranged on the top seat, and then the power generation module is manufactured; the power generation performance of the power generation module is tested by pressing the permanent magnet to make the permanent magnet reciprocate in the vertical direction, and the effectiveness of the permanent magnet is determined;
and (3) placing the power generation modules in the floor body after being electrically connected through the connecting modules, so that the permanent magnets in the power generation modules are propped against the inner surface of the floor body, and the magnetohydrodynamic power generation floor is manufactured.
In summary, compared with the existing power generation floor, the magnetic fluid power generation floor provided by the invention has the advantages that the microcosmic instability caused by human stepping errors is greatly reduced due to the non-contact pushing mode between the permanent magnet and the first electrode layer, and more stable voltage output is realized; the power generation floor has the advantages of simple structure, low processing cost and low environmental requirement, can be applied to extreme environments such as dust, underwater and the like, and greatly improves the stability, applicability, reliability and economy of the power generation floor.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. The magnetohydrodynamic power generation floor is characterized by comprising a floor body, a connecting module arranged in the floor body and at least two power generation modules electrically connected through the connecting module, wherein each power generation module comprises a base provided with a groove, a first electrode layer and a second electrode layer which are arranged in the base, and a permanent magnet which is arranged above the base and is propped against the inner surface of the floor body, the first electrode layer and the groove form a sealed cavity, magnetohydrodynamic is arranged in the sealed cavity, and the second electrode layer is arranged above the first electrode layer at intervals; the floor body drives the permanent magnet to move under the action of external force, the permanent magnet controls the magnetic fluid to move in the sealed cavity, and the magnetic fluid drives the first electrode layer and the second electrode layer to generate electricity through friction.
2. The magnetohydrodynamic electricity generation floor according to claim 1 wherein said first electrode layer comprises a first PET film and a first ITO film laminated in this order from bottom to top along the opening direction of said recess.
3. The magnetohydrodynamic electricity generation floor according to claim 2, wherein the second electrode layer comprises a PDMS film, a second ITO film and a second PET film laminated in this order from bottom to top along the opening direction of the groove, the second electrode layer is disposed above the first electrode layer at intervals, and the surfaces of the PDMS film and the first ITO film are respectively an upper friction surface and a lower friction surface during friction electricity generation.
4. A magnetohydrodynamic electricity generation floor according to claim 3 wherein the base comprises a base and a top seat which are connected with each other, the grooves and the first electrode layer are all arranged in the base, the second electrode layer is arranged on the top seat, a guide hole is further formed in the base, a guide column adapted to the guide hole is arranged on the top seat, and an adjusting spacer for adjusting the gap between the base and the top seat is sleeved on the guide column.
5. The magnetohydrodynamic power generation floor according to claim 4, wherein an elastic bracket for fixing the permanent magnet is further provided on the top base.
6. The mhd power generation floor according to claim 5, wherein the elastic support comprises a plurality of legs having one ends uniformly surrounding and fixed to the top base, and a fixing plate fixedly connected to the other ends of the legs for placing a permanent magnet.
7. The mhd power generation floor according to claim 4, wherein the power generation module further comprises a first output wire connected to the first electrode layer, a second output wire connected to the second electrode layer, the first and second output wires extending from side ends of the base and top seats, respectively; the connecting module is provided with a wire access port connected with the first output wire and the second output wire.
8. The mhd power generation floor according to claim 1, wherein the power generation module is further provided with a positioning column, the connection module is provided with a power generation module positioning hole adapted to the positioning column, and the connection module is further provided with a connection hole and a connection pin for connecting the plurality of connection modules together.
9. The magnetohydrodynamic power generation floor according to claim 1 wherein said magnetic fluid comprises a base carrier liquid and nano ferroferric oxide particles dispersed in said base carrier liquid.
10. A method of preparing a magnetohydrodynamic electricity generation floor according to any one of claims 1 to 9, comprising the steps of:
providing a base with a groove, arranging a first electrode layer above the groove, forming a sealed cavity with the first electrode layer, and injecting magnetic fluid into the sealed cavity;
a second electrode layer is arranged above the first electrode layer at intervals, and permanent magnets are arranged above the base at intervals, so that a power generation module is manufactured;
and placing at least two power generation modules in the floor body after being electrically connected through a connecting module to prepare the magnetohydrodynamic power generation floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542047.3A CN110242006B (en) | 2019-06-21 | 2019-06-21 | Magnetohydrodynamic power generation floor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542047.3A CN110242006B (en) | 2019-06-21 | 2019-06-21 | Magnetohydrodynamic power generation floor and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110242006A CN110242006A (en) | 2019-09-17 |
| CN110242006B true CN110242006B (en) | 2024-01-09 |
Family
ID=67888699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910542047.3A Active CN110242006B (en) | 2019-06-21 | 2019-06-21 | Magnetohydrodynamic power generation floor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110242006B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266510B (en) * | 2021-05-08 | 2023-05-23 | 重庆大学 | Friction power generation device utilizing wave energy and offshore monitoring device with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5915951B1 (en) * | 2015-09-18 | 2016-05-11 | 朗 村上 | Magnetic fluid power generator |
| CN106760379A (en) * | 2016-12-06 | 2017-05-31 | 北京科技大学 | A kind of Multifunctional friction electricity-generating floor leather and sensor |
| CN106877731A (en) * | 2017-01-11 | 2017-06-20 | 中国科学院理化技术研究所 | Thermo-acoustic driving friction nanometer power generation system adopting elastic membrane |
| CN107975860A (en) * | 2017-12-18 | 2018-05-01 | 夏放军 | A kind of environment protection solar heating flooring |
-
2019
- 2019-06-21 CN CN201910542047.3A patent/CN110242006B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5915951B1 (en) * | 2015-09-18 | 2016-05-11 | 朗 村上 | Magnetic fluid power generator |
| CN106760379A (en) * | 2016-12-06 | 2017-05-31 | 北京科技大学 | A kind of Multifunctional friction electricity-generating floor leather and sensor |
| CN106877731A (en) * | 2017-01-11 | 2017-06-20 | 中国科学院理化技术研究所 | Thermo-acoustic driving friction nanometer power generation system adopting elastic membrane |
| CN107975860A (en) * | 2017-12-18 | 2018-05-01 | 夏放军 | A kind of environment protection solar heating flooring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110242006A (en) | 2019-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100286486B1 (en) | Elastomeric Micro Electromechanical Systems | |
| EP3082237B1 (en) | Driving apparatus and device fabrication method | |
| CN104734556B (en) | Non-contact type electrostatic induction nanometer generator, generator set and generation method | |
| CN111564946B (en) | Low-frequency broadband electromagnetic-piezoelectric-friction combined vibration energy collector | |
| KR20150091366A (en) | Impulse generator and generator set | |
| KR102060065B1 (en) | Energy harvesting device | |
| CN110242006B (en) | Magnetohydrodynamic power generation floor and preparation method thereof | |
| US8564170B2 (en) | Vibration power generator, vibration power generation apparatus, and electric device and communication device with vibration power generation apparatus mounted thereon | |
| CN113241966A (en) | Rotary friction nano power generation device and method based on point discharge | |
| CN210421783U (en) | Magnetofluid power generation floor | |
| CN111146852A (en) | Telescopic dielectric elastomer energy acquisition device and application thereof | |
| CN110242005B (en) | Magnetic viscous body power generation floor and manufacturing method thereof | |
| CN108123642B (en) | Friction nanometer generator and preparation method thereof | |
| CN110176872B (en) | Nano generator system and power supply device | |
| CN210421782U (en) | Magnetic viscosity body power generation floor | |
| CN110224573B (en) | Magnetohydrodynamic power generation device and manufacturing method thereof | |
| CN209881631U (en) | Magnetofluid power generation device | |
| CN210431260U (en) | Flexible power generation device with magnetic adhesive body | |
| JP3005972B2 (en) | Threshold operation type semiconductor electrostatic device | |
| KR101907771B1 (en) | Triboelectric energy generator using induced charge | |
| CN110224629A (en) | Magnetic adhesive flexible power generation device and preparation method thereof | |
| US9407172B2 (en) | Vibration power generator | |
| CN113489377B (en) | Bistable vortex-induced vibration power generation device based on balance adjustment of permanent magnet | |
| KR102678200B1 (en) | Droplet triboelectric nano generator based on magnetite/polyvinylidene fluoride nanocomposite in applied magnetic fields | |
| KR20210003628A (en) | Thermoelectric generation element using triboelectric field effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |