CN109889009A - A kind of electromagnetism based on magnetic acicular texture-friction combined generator - Google Patents
A kind of electromagnetism based on magnetic acicular texture-friction combined generator Download PDFInfo
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- CN109889009A CN109889009A CN201910215682.0A CN201910215682A CN109889009A CN 109889009 A CN109889009 A CN 109889009A CN 201910215682 A CN201910215682 A CN 201910215682A CN 109889009 A CN109889009 A CN 109889009A
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- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 7
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- 230000008859 change Effects 0.000 claims description 6
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
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- 239000000203 mixture Substances 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The present invention relates to micro-nano sensor fields, a kind of electromagnetism based on magnetic acicular texture-friction combined generator is specifically provided, including wire coil, magnetic acicular texture, flexible magnetic substrate, first metal electrode and the second metal electrode, wherein magnetic acicular texture had not only been used as friction material but also had played a role as permanent magnet, generate two kinds of electricity outputs simultaneously in a kind of mechanical movement, reduce electromagnetism-friction combined generator volume and weight, it is compact-sized frivolous, with light and portable, the features such as electric property is excellent and integrated level is high, and the magnetic acicular texture used in the electromagnetism-friction combined generator also has the advantages that manufacture craft is simple.
Description
Technical field
The present invention relates to micro-nano sensor fields, multiple more particularly to a kind of electromagnetism-friction based on magnetic acicular texture
Box-like generator.
Background technique
With the fast development of wireless sensor network and technology of Internet of things, not only various micro-nano sensor performances are wanted
It asks higher and higher, and the demand to Multifunction Sensor is also increasingly urgent to, therefore there is quick response, highly integrated, more function
The sensor of the features such as energy, self-powered receives more and more attention.Then, polymorphic combined generator is widely studied,
With for constructing self energizing system, and various information are detected and reflected as active sensor.
Wherein, electromagnetism-friction combined generator is to be transported using electromagnetic generator and friction generator from same machinery
Electric energy is converted mechanical energy into dynamic, the advantage of electromagnetic generator and friction generator is subjected to good combination, forms complementary knot
Structure can generate response, while the multiclass information such as size, speed and frequency for detecting power to the excitation of the small amplitude of low frequency.With
Individual electromagnetic generator or friction generator are compared, and electromagnetism-friction combined generator has bigger output power, higher
Machine-photoelectric transformation efficiency, from the power supply of driving sensor, wearable device and in terms of with important application before
Scape.
For electromagnetism-friction combined generator application field, the electromagnetism-that manufacturing process is simple and integrated level is high is needed
Rub combined generator.
Summary of the invention
The purpose of the present invention is to provide a kind of electromagnetism based on magnetic acicular texture-friction combined generator, technologies
Scheme is as follows:
A kind of electromagnetism based on magnetic acicular texture-friction combined generator, including magnetic acicular texture, flexible magnetic base
Bottom, wire coil, the first metal electrode and the second metal electrode, the magnetism acicular texture is in shape in the flexible magnetic substrate
At, second metal electrode is in contact with the flexible magnetic substrate,
Apply mechanical external force on the electromagnetism-friction combined generator surface, so that elasticity occurs for the magnetism acicular texture
Deformation, causes the magnetic flux of the wire coil to change, to generate induced electromotive force, causes in the form of Electromagnetic generation
Generate electricity output；
Meanwhile apply mechanical external force in the electromagnetism-friction combined generator surface, also make the magnetic acicular texture and
Contact with each other and separate, in this process, first metal electrode and the magnetic between first metal electrode
Property acicular texture takes positive and negative charge respectively, and positive and negative charge is separated from each other, in first metal electrode and second metal
Potential difference is generated between electrode, causes to generate electricity output in the form of triboelectricity.
Further, aforementioned to cause to generate electricity output in the form of Electromagnetic generation and while cause in the form of triboelectricity
Generate the detailed process of electricity output are as follows: apply mechanical external force, the magnetism needle on the electromagnetism-friction combined generator surface
Shape structure contacts with each other with first metal electrode, so that flexible deformation occurs for the magnetism acicular texture, causes the gold
The magnetic flux for belonging to coil changes, to generate induced electromotive force, causes to generate electricity output in the form of Electromagnetic generation；Together
When, due to applying mechanical external force, the magnetism acicular texture and described first on the electromagnetism-friction combined generator surface
Metal electrode contacts with each other, so that flexible deformation occurs for the magnetism acicular texture, when cancelling mechanical external force, in the magnetic needle
Under the action of the elastic restoring force of shape structure, first metal electrode and the magnetic acicular texture are separated from each other, described
During first metal electrode and the magnetic acicular texture contact with each other and are separated from each other, first metal electrode and institute
It states magnetic acicular texture and takes positive and negative charge respectively, positive and negative charge is separated from each other, in first metal electrode and described second
Potential difference is generated between metal electrode, causes to generate electricity output in the form of triboelectricity.
Further, in order to reduce electromagnetism-friction combined generator volume, achieve the purpose that it is compact-sized frivolous,
First metal electrode is located at the lower surface of the wire coil, and first metal electrode is located at the needle-shaped knot of magnetism
The top of structure, the magnetism acicular texture are in the upper surface of the flexible magnetic substrate, and second metal electrode is located at institute
State the lower surface of flexible magnetic substrate.
Further, first metal electrode pastes or is plated in the lower surface of the wire coil, the second metal electricity
Paste or be plated in the lower surface of the flexible magnetic substrate in pole.
Further, the electromagnetism-friction combined generator further includes flexible package layer, and the flexible package layer is by institute
State magnetic acicular texture, the flexible magnetic substrate, the wire coil, first metal electrode and the second metal electrode envelope
Dress up an entirety.
Further, the constituent of the magnetic acicular texture be toluene, dimethyl silicone polymer, ferromagnetic powder and
Magnaglo, configuration proportion 5:2:3:3,
Wherein, it is preferred that the ferromagnetic powder is carbonyl iron dust；
Further, the constituent of the MAGNETIC BASEMENT be dimethyl silicone polymer and Magnaglo, allocation ratio 1:3,
Wherein, it is preferred that the Magnaglo is neodymium iron boron powder,
Further, the magnetic acicular texture is formed in the flexible magnetic substrate, specific forming process are as follows: use gas blowout
Mode, sprayed according to the prepared solution of allocation ratio of the constituent of the magnetic acicular texture by spray gun, in air-flow
Drive under, the solution tends to magnet movement, and the magnet is located at below the flexible magnetic substrate, provide one it is uniform
Magnetic field, when the solution is close to the magnet, the ferromagnetic powder in the solution makes the solution in magnetic fields
Under be distributed according to the magnetic line of force, magnetic acicular texture is formed in the flexible magnetic substrate.
The beneficial effects of the present invention are:
Electromagnetism based on magnetic acicular texture-friction combined generator provided by the invention is a kind of pressure-electric energy converting means
It sets.Wherein, magnetic acicular texture had not only been used as friction power generation component but also had played a role as electromagnetic power generation component, in a kind of mechanical fortune
Two kinds of electricity outputs are generated in dynamic simultaneously, reduce electromagnetism-friction combined generator volume and weight, compact-sized frivolous, tool
There is the features such as light and portable, electric property is excellent and integrated level is high, and used in the electromagnetism-friction combined generator
Magnetic acicular texture also has the advantages that manufacture craft is simple.
In addition, electromagnetism proposed by the present invention-friction combined generator uses flexible material, it can be attached at and various not advise
The then surface of object, while flexible structure can also improve the sensitivity of sensor, more quickly restore the elastic deformation of sensor,
Has capability of fast response.
Detailed description of the invention
Fig. 1 is a kind of three-dimensional of the electromagnetism based on magnetic acicular texture-friction combined generator in the embodiment of the present invention
Structural schematic diagram；
Fig. 2 is electromagnetism-friction combined generator sectional view shown in Fig. 1；
Fig. 3 is that magnetic acicular texture manufactures schematic diagram in electromagnetism-friction combined generator shown in Fig. 1；
Fig. 4 is magnetic acicular texture schematic diagram in electromagnetism-friction combined generator shown in Fig. 1；
Fig. 5 is the output voltage that electromagnetism-friction combined generator shown in Fig. 1 generates electricity output in the form of triboelectricity；
Fig. 6 is the output electric current that electromagnetism-friction combined generator shown in Fig. 1 generates electricity output in the form of triboelectricity；
Fig. 7 is the output voltage that electromagnetism-friction combined generator shown in Fig. 1 generates electricity output in the form of Electromagnetic generation；
Fig. 8 is the output electric current that electromagnetism-friction combined generator shown in Fig. 1 generates electricity output in the form of Electromagnetic generation.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is described.It is aobvious
So, the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The scope of protection of the invention.
Embodiment 1
The electromagnetism based on magnetic acicular texture-friction combined generator structure that the embodiment of the present invention proposes referring to Fig. 1 and
Fig. 2, including wire coil 1, the first metal electrode 2, magnetic acicular texture 3, flexible magnetic substrate 4 and the second metal electrode 5；
First metal electrode 2 is located at the lower surface of wire coil 1, and the first metal electrode 2 is located at the top of magnetic acicular texture 3, magnetic
Property acicular texture 3 is in the upper surface of flexible magnetic substrate 4, and the second metal electrode 2 is located at the lower surface of flexible magnetic substrate 4.
The electromagnetism-friction combined generator further includes flexible package layer, the flexible package layer by wire coil 1,
First metal electrode 2, magnetic acicular texture 3, flexible magnetic substrate 4 and the second metal electrode 5 are packaged into an entirety.
The material of flexible package layer is specially polyimides, and length and width are specially 20mm × 20mm, and thickness is specially 0.25mm；
The material of wire coil 1 is specially metallic copper, and 1 outer diameter of wire coil is specially 18mm, and internal diameter is specially 2mm, thickness tool
Body is 1mm；
The material of first metal electrode 2 and the second metal electrode 5 is specially aluminium electrode, the first metal electrode 2 and the second metal electricity
The length and width of pole 5 are specially 18mm × 18mm；
Referring to fig. 4, the constituent of magnetic acicular texture 3 is toluene, polydimethylsiloxanes for magnetic 3 structure of acicular texture and composition
Alkane, ferromagnetic powder 6 and Magnaglo 7, configuration proportion are specially 5:2:3:3, after mixing, are stirred 30 minutes, wherein iron
Magnaglo 6 is specially iron powder, and iron powder diameter is specially 5um, and Magnaglo 7 is specially neodymium iron boron powder, and neodymium iron boron powder 7 is straight
Diameter is specially 5um.
The constituent of flexible magnetic substrate 4 is dimethyl silicone polymer and Magnaglo 7, and allocation ratio is preferably 1:3,
Magnaglo 7 is specially neodymium iron boron powder, and straight 0. diameter of neodymium iron boron powder is specially 5um, by dimethyl silicone polymer and neodymium iron boron
Powder places die for molding after evenly mixing, then solidifies 3 hours at 80 DEG C.
After flexible magnetic substrate 4 is made, in the magnetic acicular texture 3 of production in flexible magnetic substrate 4.
Magnetic acicular texture 3 is formed under the action of permanent magnet in flexible magnetic substrate 4, and referring to Fig. 3, manufacture uses gas
The mode of spray, the nozzle diameter of spray gun 8 are specially 0.5mm；According to the allocation ratio of the constituent of above-mentioned magnetic acicular texture 3
Prepared solution is sprayed by spray gun 8, and under the drive of air-flow, solution tends to magnet 9 and moves, and magnet 9 is located at flexible magnetic base
Below bottom 4, a uniform magnetic field is provided, when solution is close to magnet 9, the ferromagnetic powder 6 in solution makes solution exist
It is distributed under magnetic fields according to the magnetic line of force, forms magnetic acicular texture 3, wherein the magnetic field strength of magnet 9 is preferably 400mT.Magnetic
After property 3 spray mo(u)lding of acicular texture, solidify 12 hours at 80 DEG C.
After the two is made, magnetize with magnetism, then in conjunction with other component according to Fig. 1 and Fig. 2
Structure be packaged.
Electromagnetism-friction combined generator that the embodiment of the present invention proposes takes contact-separation design, by pressing repeatedly
Being pressed in electromagnetism-friction combined generator surface application mechanical external force can be absorbed the mechanical energy of reciprocating motion for electromagnetism-
Rub compound power-generating.Detailed process is as follows:
Apply mechanical external force on electromagnetism-friction combined generator surface, magnetic acicular texture 3 and the first metal electrode 2 are mutually
Contact causes the magnetic flux of wire coil 1 to change, to generate induction so that flexible deformation occurs for magnetic acicular texture 3
Electromotive force causes to generate electricity output in the form of Electromagnetic generation.
Wherein flexible deformation occurs for aforementioned magnetic acicular texture 3, and the magnetic flux of wire coil 1 is caused to change, thus
The process of induced electromotive force is generated, specifically: flexible deformation occurs for magnetic acicular texture 3, causes its internal magnetic moment that can revolve
Turn, so that magnetic flux density line and the angle of 1 place curved surface of wire coil change, leads to surface normal vector and magnetic flux density
Inner product changes about the loop integral of 1 place curved surface of wire coil, to generate induced electromotive force, causes with Electromagnetic generation
Form generate electricity output；
Simultaneously as applying mechanical external force, magnetic acicular texture 3 and the first metal on electromagnetism-friction combined generator surface
Electrode 2 contacts with each other, so that flexible deformation occurs for magnetic acicular texture 3, when cancelling mechanical external force, in magnetic acicular texture 3
Under the action of elastic restoring force, the first metal electrode 2 and magnetic acicular texture 3 are separated from each other, in the first metal electrode 2 and magnetism
During acicular texture 3 contacts with each other and is separated from each other, the first metal electrode 2 and magnetic acicular texture 3 take positive and negative respectively
Charge, positive and negative charge are separated from each other, and generate potential difference between the first metal electrode 2 and the second metal electrode 5, are caused to rub
The form of power generation generates electricity output.
In the present embodiment, as long as applying periodic external force on electromagnetism-friction combined generator surface, make first
Metal electrode 2 is separate repeatedly with magnetic acicular texture 3, will continue externally to export electric signal, and entire design reduces electricity
Magnetic-friction combined generator volume and weight, it is compact-sized frivolous, have light and portable, electric property excellent and integrated level
The features such as high, and the magnetic acicular texture 3 used in electromagnetism-friction combined generator also has manufacture craft simply excellent
Point.
Electromagnetism provided in this embodiment-friction combined generator output performance is tested, keithley is used
It is defeated that electrometer 6514 measures the electricity generated between the first metal electrode 2 and the second metal electrode 5, in the form of triboelectricity respectively
The electricity output generated between 1 two ports of wire coil, in the form of Electromagnetic generation out, test result is referring to Fig. 5-8, test knot
Fruit shows that electromagnetism provided in this embodiment-friction combined generator electric property is excellent.
Embodiment 2
Electromagnetism-friction combined generator phase that electromagnetism-friction combined generator that embodiment 2 provides is provided with embodiment 1
Compare, something in common is: electromagnetism-friction combined generator in two embodiments includes wire coil, the first metal
Electrode, magnetic acicular texture, flexible magnetic substrate and the second metal electrode, also take contact-separation design, by anti-
It is multiple to apply mechanical external force on electromagnetism-friction combined generator surface, realize combined power generation, the difference is that: embodiment 1
In the first metal electrode 2 be located at the top of magnetic acicular texture 3, press to realize that the first metal electrode 2 and magnetism are needle-shaped
Contact-separation of structure 3 is that the first metal electrode 2 and magnetic acicular texture 3 are realized by level sliding in embodiment 2
Contact-separation, thus the positional relationship of the first metal electrode 2 and magnetic acicular texture 3 also can be different from embodiment 1, this field
Technical staff can make appropriate adjustment according to embodiment 1, and repeats no more herein.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, anything that does not depart from the technical scheme of the invention according to the technical essence of the invention do above embodiments
Any simple modification, equivalent replacement etc., all of which are still within the scope of protection of the technical scheme of the invention.
Claims (10)
1. a kind of electromagnetism based on magnetic acicular texture-friction combined generator, which is characterized in that including magnetic needle-shaped knot
Structure, flexible magnetic substrate, wire coil, the first metal electrode and the second metal electrode, the magnetism acicular texture is in described soft
It being formed in property MAGNETIC BASEMENT, second metal electrode is in contact with the flexible magnetic substrate,
Apply mechanical external force on the electromagnetism-friction combined generator surface, so that elasticity occurs for the magnetism acicular texture
Deformation, causes the magnetic flux of the wire coil to change, to generate induced electromotive force, causes in the form of Electromagnetic generation
Generate electricity output；
Meanwhile apply mechanical external force in the electromagnetism-friction combined generator surface, also make the magnetic acicular texture and
Contact with each other and separate, in this process, first metal electrode and the magnetic between first metal electrode
Property acicular texture takes positive and negative charge respectively, and positive and negative charge is separated from each other, in first metal electrode and second metal
Potential difference is generated between electrode, causes to generate electricity output in the form of triboelectricity.
2. electromagnetism according to claim 1-friction combined generator, which is characterized in that described to cause with Electromagnetic generation
Form generate electricity output and simultaneously cause in the form of triboelectricity generate electricity output detailed process are as follows:
Apply mechanical external force, the magnetism acicular texture and first gold medal on the electromagnetism-friction combined generator surface
Belong to electrode to contact with each other, so that flexible deformation occurs for the magnetism acicular texture, the magnetic flux of the wire coil is caused to occur
Change, to generate induced electromotive force, causes to generate electricity output in the form of Electromagnetic generation；Simultaneously as rubbing in the electromagnetism-
It wipes combined generator surface and applies mechanical external force, the magnetism acicular texture contacts with each other with first metal electrode, makes
It obtains the magnetic acicular texture and flexible deformation occurs, when cancelling mechanical external force, in the elastic restoring force of the magnetic acicular texture
Under the action of, first metal electrode and the magnetic acicular texture are separated from each other, in first metal electrode and described
During magnetic acicular texture contacts with each other and is separated from each other, first metal electrode and the magnetic acicular texture difference
Positive and negative charge is taken, positive and negative charge is separated from each other, and electricity is generated between first metal electrode and second metal electrode
Potential difference causes to generate electricity output in the form of triboelectricity.
3. electromagnetism according to claim 2-friction combined generator, which is characterized in that first metal electrode position
In the lower surface of the wire coil, and first metal electrode is located at the top of the magnetic acicular texture, the magnetism
Acicular texture is in the upper surface of the flexible magnetic substrate, and second metal electrode is located under the flexible magnetic substrate
Surface.
4. electromagnetism according to claim 3-friction combined generator, which is characterized in that the first metal electrode patch
Or it is plated in the lower surface of the wire coil, the second metal electrode patch or the lower surface for being plated in the flexible magnetic substrate.
5. electromagnetism according to any one of claim 1 to 4-friction combined generator, which is characterized in that the electricity
Magnetic-friction combined generator further includes flexible package layer, and the flexible package layer is by the magnetic acicular texture, the flexibility
MAGNETIC BASEMENT, the wire coil, first metal electrode and the second metal electrode are packaged into an entirety.
6. electromagnetism according to claim 5-friction combined generator, which is characterized in that the magnetism acicular texture
Constituent is toluene, dimethyl silicone polymer, ferromagnetic powder and Magnaglo, configuration proportion 5:2:3:3.
7. electromagnetism according to claim 6-friction combined generator, which is characterized in that the ferromagnetic powder is carbonyl
Base iron powder.
8. electromagnetism according to claim 9-friction combined generator, which is characterized in that the composition of the MAGNETIC BASEMENT
Ingredient is dimethyl silicone polymer and Magnaglo, allocation ratio 1:3.
9. electromagnetism according to claim 8-friction combined generator, which is characterized in that the Magnaglo is neodymium iron
Boron powder.
10. electromagnetism according to claim 9-friction combined generator, which is characterized in that it is described magnetism acicular texture in
It is formed in the flexible magnetic substrate, specific forming process are as follows: by the way of gas blowout, according to the group of the magnetic acicular texture
It is sprayed at the prepared solution of the allocation ratio of ingredient by spray gun, under the drive of air-flow, the solution tends to magnet movement, institute
It states magnet to be located at below the flexible magnetic substrate, a uniform magnetic field is provided, when the solution is close to the magnet,
Ferromagnetic powder in the solution is distributed the solution under magnetic fields according to the magnetic line of force, in the flexible magnetic base
Magnetic acicular texture is formed on bottom.
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| CN112747841A (en) * | 2020-12-29 | 2021-05-04 | 苏州大学 | Self-driven pressure sensor and preparation method thereof |
| CN114301328A (en) * | 2022-01-04 | 2022-04-08 | 电子科技大学 | Superelasticity micro-nano energy collection and sensing integrated microsystem, manufacturing method and using method |
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