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Single-electrode friction nanogenerator and generating method and self-driven tracking device

A nanogenerator and generator technology, applied in the directions of triboelectric generators, transportation and packaging, chemical instruments and methods, etc., to achieve the effects of simplifying circuit connections, expanding application scope, and reducing production costs

Active Publication Date: 2014-12-24
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of power consumption makes it difficult for these existing tracking systems to be widely used in the future energy crisis. The development of a self-driven tracking system is fundamentally the key to solving the long-term and stable work of these devices

Method used

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  • Single-electrode friction nanogenerator and generating method and self-driven tracking device
  • Single-electrode friction nanogenerator and generating method and self-driven tracking device
  • Single-electrode friction nanogenerator and generating method and self-driven tracking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] Example 1: Preparation of single-electrode friction nanogenerator

[0141] A plexiglass plate with a length of 3 cm × a width of 3 cm × a thickness of 1.59 mm was used as the second supporting element, and a piece of Al foil was used to completely cover the entire plexiglass plate. A piece of nylon film with a length of 7 cm × a width of 3 cm × a thickness of 25 μm and a piece of polyimide with a length of 7 cm × a width of 3 cm × a thickness of 127 μm are bonded together with adhesive tape. The surface of the nylon faces the Al foil, and its two ends are fixed on the plexiglass with tape. Connect the Al foil with a copper wire and connect it to a resistor, and the other end of the resistor is grounded. Because the polyimide film has good elasticity, it can ensure that the nylon film and the Al foil are completely separated without pressure. During compression, the two films can touch together. Apply an external force to the flexible outer membrane of the generator, suc...

Embodiment 2

[0142] Example 2: Preparation of a single-electrode friction generator set

[0143] A plexiglass plate with a length of 10 cm × a width of 10 cm × a thickness of 1.59 mm was cut by a laser as the second supporting element, and two 2 cm × 2 cm × 0.5 mm Cu films were prepared on it. Evenly bond four 1mm thick high-elastic sponge blocks around each piece of Cu film as elastic parts, and take two 3cm×3cm×1mm polyester sheets as the friction layer, respectively, with the two pieces on the second supporting element The copper film is facing each other, and the other end of the high elastic sponge is adhered to its lower surface to form a similar Picture 9 The structure shown. Each Cu film is connected by a wire and a resistor with one end grounded to form a generator set with 2 generators. Its structure is Figure 18 The illustrated embodiment is similar. Due to the function of the highly elastic sponge, it can be ensured that the polyester sheet and the Cu film are completely separa...

Embodiment 3

[0145] Example 3: Preparation of single-electrode friction generator tracking system

[0146] According to the method of Example 1, 16 friction generators of the same size were fabricated and arranged in a 4×4 matrix. The circuit connection of the entire generator set is as follows Picture 20 Shown. When an object moves in the tracking system, the contact between the object and the friction generator will cause the generator to compress, thereby outputting an external electrical signal. Through the collection of these signals, the detection of the moving path of the object can be realized. The system directly uses the friction generator as the trigger sensor, does not require external power supply, can effectively save energy, and can work stably for a long time. When we compress a generator, the data image obtained can clearly show that it is the seventh generator ( Figure 21 ).

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Abstract

The invention discloses a single-electrode friction generator which is built according to the characteristic that polymer materials and metal materials have different friction electrical properties. A tracking system based on the generator is manufactured. According to the tracking system, a plurality of generator units form an array matrix. When an object moves on the tracking system, pressure acts on the generator, two layers of friction electrical materials forming the generator make contact, and therefore electrical signals are sent outwards. When the object gets away from the generator, the two layers of friction electrical materials forming the generator will be separated due to the action of elastic materials, and electrical signals are sent outwards as well. The tracking system based on the friction generator can track movement paths of some objects, and has the advantages of being low in cost, self-driven, simple in structure and the like.

Description

Technical field [0001] The invention relates to a friction nano generator, in particular to a single-electrode friction nano generator, a generator set, a power generation method and a self-driving tracking device based on the generator. Background technique [0002] The working principle of the triboelectric nanogenerator is based on the mutual contact and separation between two materials with different triboelectric properties to generate electricity. However, all the triboelectric nanogenerators currently reported need two electrode layers, at least one electrode layer needs to be formed by depositing conductive metal on the surface of the friction film material, and the external electric energy is realized through the two electrode layers Output. This kind of generators, on the one hand, cause high device manufacturing costs due to metal deposition, and on the other hand, the thickness of the friction material must be within a certain range. These limiting factors have grea...

Claims

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Application Information

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IPC IPC(8): H02N1/04B32B7/025
CPCH02N1/04B32B5/18B32B7/12B32B7/14B32B15/08B32B15/20B32B27/16B32B27/283B32B27/302B32B27/304B32B27/308B32B27/32B32B27/322B32B27/34B32B27/36B32B27/365B32B1/00B32B3/06B32B3/28B32B2250/02B32B2250/04B32B2255/10B32B2255/205B32B2266/0278B32B2270/00B32B2307/202B32B2307/30B32B2307/51B32B2307/732B32B2457/00B32B7/05B32B7/025
Inventor 王中林杨亚张虎林
Owner BEIJING INST OF NANOENERGY & NANOSYST
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