CN103546058B - A kind of combined generator based on electromagnetism Yu tribology principle - Google Patents

A kind of combined generator based on electromagnetism Yu tribology principle Download PDF

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Publication number
CN103546058B
CN103546058B CN201310517077.1A CN201310517077A CN103546058B CN 103546058 B CN103546058 B CN 103546058B CN 201310517077 A CN201310517077 A CN 201310517077A CN 103546058 B CN103546058 B CN 103546058B
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China
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permanent magnet
wire coil
shell
frictional layer
thin film
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CN201310517077.1A
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Chinese (zh)
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CN103546058A (en
Inventor
张海霞
韩梦迪
张晓升
刘雯
孟博
孙旭明
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北京大学
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Publication of CN103546058A publication Critical patent/CN103546058A/en
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Abstract

The present invention relates to micro-energy field, it is specifically related to a kind of combined generator based on electromagnetism Yu tribology principle, the top quality block that is provided with from top to bottom in comprising shell and shell, top permanent magnet, frictional layer, wire coil, bottom permanent magnet, shell is cylindrical, top quality block, top permanent magnet, frictional layer, wire coil, bottom permanent magnet are all in cylinder, wire coil is wrapped with thin film, the invention has the advantages that: the present invention can be low power dissipation electron device energy supply as the succedaneum of conventional batteries;Achieve the mutual supplement with each other's advantages of electromagnetic generator and friction-type electromotor, improve the energy conversion efficiency of electromotor;Reliability is higher, and separating rate is faster;Simplify the structure of device, beneficially large-scale production.

Description

A kind of combined generator based on electromagnetism Yu tribology principle
Technical field
The present invention relates to micro-energy field, be specifically related to a kind of based on electromagnetism and tribology principle Combined generator.
Background technology
In recent years, world energy sources crisis makes the research of new forms of energy the most urgent with application.Therefore, Energy acquisition technology is of great interest.Energy acquisition technology i.e. collects the energy in environment Measure and be converted into electric energy to be used.For collect solar energy, wind energy device as the most too Sun battery, windmill etc. can have been carried out industrialization.By contrast, vibrational energy is in the environment Exist more stable and widely distributed.2012, first nanometer based on tribology principle was sent out Motor be successfully prepared and achieve high-performance output [Wang, Z.L.et al.Nano energy, vol.1,pp.328,2012].Nano generator subsequently, based on tribology principle develops fast Speed, output energy density the most persistently increases, equal in the field such as energy acquisition, self-power supply system It is widely used.
Nano generator output voltage based on tribology principle is high, and through reasonably design, it is defeated Go out voltage and may be up to kilovolt.But the output electric current of friction nanometer power generator is the least, typically For microampere rank, cannot be suitable in some occasion needing big electric current.Additionally, friction nanometer The matched load of electromotor is too high, generally megaohm rank, and the device for little internal resistance cannot Realize energy supply efficiently.Compared to friction generator, based on Faraday law of electromagnetic induction Electromagnetic generator has output off current HIGH, the feature of low matched load.Its output characteristic is proper Good contrary with friction generator, therefore two kinds of mechanism are combined, it is achieved have complementary advantages, no Only can improve energy conversion efficiency, it is also possible to widen the range of application of device.
Summary of the invention
In order to solve the problems referred to above, the present invention provides a kind of and based on electromagnetism and tribology principle answers Box-like electromotor, including following technical scheme: comprise shell, it is characterised in that: in shell from Top to bottm it is provided with top quality block, top permanent magnet, frictional layer, wire coil and bottom forever Magnet, shell is cylindrical, top quality block, top permanent magnet, frictional layer and metal wire Circle, bottom permanent magnet are all in cylinder, and diameter is respectively less than internal diameter of outer cover, wire coil outsourcing It is wrapped with thin film.
Described shell is plastics or glass;Shell inside diameter is 5mm-30mm, outside diameter Wider 1mm-5mm than inside diameter, height is 5mm-50mm.
Described top quality block be metallic iron or metallic copper or alloy material or other density bigger Material, top quality block quality is 1g-50g.
Described top permanent magnet and bottom permanent magnet are neodymium iron boron.
Described frictional layer is silicone rubber or Fypro or metal material or other easy betatopic Material.
Described wire coil is metallic copper;Wire coil live width is 80 μm-200 μm, spacing Being 80 μm-200 μm, height is 10 μm-40 μm.
The material of described thin film is polyimides, and the thickness of thin film is 20 μm-50 μm.
The invention has the advantages that:
1, the combined generator based on electromagnetism with tribology principle that the present invention proposes uses cylinder Formula structure, is shaped like with conventional batteries, can be low-power consumption as the succedaneum of conventional batteries Electronic device energy supply.
2, the combined generator that the present invention proposes, by electromagnetic induction principle and triboelectrification-quiet Electric induction principle combines, it is achieved that electromagnetic generator and the mutual supplement with each other's advantages of friction-type electromotor, Improve the energy conversion efficiency of electromotor.
3, the combined generator based on electromagnetism Yu tribology principle that the present invention proposes passes through electromagnetism Repulsion makes two kinds of friction materials be rapidly separated, compared with traditional mechanical separation mode, reliably Property is higher, and separating rate is faster.
4, the combined generator based on electromagnetism with tribology principle that the present invention proposes uses copper cash Enclose as the hearth electrode of friction generator, use permanent magnet as the top electrode of friction generator, Simplify the structure of device, beneficially large-scale production.
Accompanying drawing explanation
Fig. 1 is the combined generator three dimensional structure schematic diagram of the present invention;
Fig. 2 is the combined generator profile of the present invention;
Fig. 3 is the combined generator bottom view of the present invention;
Fig. 4 is the combined generator wire coil of the present invention and is around coated with polyimide structures Side view;
Fig. 5 is the output voltage of the combined generator electromagnet portion of the present invention, output voltage peak Value is about 10mV;
Fig. 6 is the output voltage of the combined generator friction portion of the present invention, output voltage peak Value is about 20V.
Detailed description of the invention
When considered in conjunction with the accompanying drawings, by referring to detailed description below, it is possible to more completely more Understand well the present invention and easily learn the advantage that many of which is adjoint, but described herein Accompanying drawing be used for providing a further understanding of the present invention, constitute the part of the present invention.
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below In conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment: as shown in Figures 1 to 6, including shell 1, top quality block 2, top forever Magnet 3, frictional layer 4, wire coil 5, thin film 6, bottom permanent magnet 7,
Shell 1 use polytetrafluoroethylmaterial material (polytetrafluoroethylene, PTFE), shell 1 inside diameter is preferably 20mm, and outside diameter is preferably 2mm, the most excellent Elect 25mm as;
The superiors of shell 1 use metallic iron equipped with top quality block 2, top quality block 2 Material, Functionality, quality and appealing design elects 30g as;
Equipped with top permanent magnet 3 below top quality block 2, use neodymium iron boron (NdFeB) material Material;
Equipped with the frictional layer 4 of silastic material below top permanent magnet 3;
Equipped with wire coil 5 below frictional layer 4, wire coil 5 material uses metallic copper, Metal wire astragal 5 is wide is preferably 150 μm, and spacing is preferably 100 μm, in fact it is highly preferred that be 30 μm;
Wire coil 5 is coated with thin film 6, and the material of thin film 6 is polyimides (polyimide, PI), the thickness of thin film 6 is preferably 35 μm.
Equipped with bottom permanent magnet 7 below wire coil 5, use neodymium iron boron (NdFeB) material;
Electromagnetic repulsion force is provided by opposite polarity top permanent magnet 3 and bottom permanent magnet 8, Make two friction surfaces be rapidly separated, produce electricity based on friction output.Meanwhile, Use flexible print wiring board technique to prepare wire coil 5, make top permanent magnet 3 and bottom forever In wire coil 5, produce induced voltage while magnet 8 motion, improve composite generator Energy conversion efficiency.
Above to a kind of combined power generation based on electromagnetism Yu tribology principle provided by the present invention Machine is described in detail, and enters the exemplary embodiment of the application above by reference to accompanying drawing Go description.It should be appreciated by those skilled in the art that the embodiment above is only used to Bright purpose and the example lifted rather than for limiting, all in teachings of the present application With any amendment made under claims, equivalent etc., should be included in In the range of this application claims.

Claims (1)

1. a combined generator based on electromagnetism Yu tribology principle, comprises shell, it is characterised in that: Top quality block, top permanent magnet, frictional layer, wire coil and bottom it is provided with from top to bottom in shell Permanent magnet, shell is cylindrical, top quality block, top permanent magnet, frictional layer, wire coil and Bottom permanent magnet is all in cylinder, and diameter is respectively less than internal diameter of outer cover, and wire coil is wrapped with thin film;
Described shell uses polytetrafluoroethylmaterial material, and shell inside diameter is 20mm, and outside diameter is 2mm, It is highly 25mm;
The superiors of described shell are equipped with top quality block, and top quality block uses metallic iron material, top Equipped with top permanent magnet below portion's mass, use NdFeB material, equipped with silicon below top permanent magnet The frictional layer of elastomeric material;
Equipped with wire coil below frictional layer, this wire coil material uses metallic copper, metal wire astragal A width of 150 μm, spacing is 100 μm, and height is 30 μm;
Wire coil is coated with thin film, and the material of thin film is polyimides, and the thickness of thin film is 35 μm, Equipped with bottom permanent magnet below wire coil, use NdFeB material;
There is provided electromagnetic repulsion force by opposite polarity top permanent magnet and bottom permanent magnet, make two frictions Surface separates, and produces electricity based on friction output, uses flexible print wiring board technique to prepare metal Coil, produces induced voltage while making top permanent magnet and bottom permanent magnet motion in wire coil.
CN201310517077.1A 2013-10-28 2013-10-28 A kind of combined generator based on electromagnetism Yu tribology principle CN103546058B (en)

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US9748868B2 (en) * 2014-03-18 2017-08-29 Fondazione Istituto Italiano Di Tecnologia Triboelectric composite for mechanical energy harvesting and sensing
CN105490578B (en) * 2014-09-16 2018-01-02 北京纳米能源与系统研究所 A kind of contact separation formula composite nano generator
CN106208800A (en) * 2015-04-30 2016-12-07 北京纳米能源与系统研究所 A kind of slidingtype composite nano generator
CN104953785B (en) * 2015-07-30 2018-03-27 苏州大学 A kind of energy collecting device
CN108123642B (en) * 2016-11-30 2020-08-18 北京纳米能源与系统研究所 Friction nanometer generator and preparation method thereof
CN107681864A (en) * 2017-11-10 2018-02-09 苏州大学 Combined type rotating energy collector
CN108429428B (en) * 2018-03-08 2019-12-10 北京大学 Electromagnetic friction composite type multidirectional vibration energy collector and manufacturing method thereof
CN108471219B (en) * 2018-04-08 2019-11-05 西北工业大学 The contactless wearable electromagnetism of one kind-friction mixing nanometer generating device and preparation method
CN108539785B (en) * 2018-04-19 2021-04-23 先控捷联电气股份有限公司 Inverter synchronization method and device
CN109787535A (en) * 2019-02-18 2019-05-21 中北大学 A kind of energy gathering devices
CN109889009A (en) * 2019-03-21 2019-06-14 中山大学 A kind of electromagnetism based on magnetic acicular texture-friction combined generator

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CN103368450A (en) * 2013-01-28 2013-10-23 国家纳米科学中心 Frictional electricity nano-generator and shoe pad utilizing frictional electricity nano-generator

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CN103107739A (en) * 2013-02-28 2013-05-15 北京理工大学 Movable-magnet-type electromagnetism-piezoelectricity-combined-type broadband energy harvester based on micro-electromechanical systems (MEMS)
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