Electrostatic generator, manufacturing method thereof and self-driven sensing system
A generator and electrostatic technology, applied in the direction of electrostatic generator/motor, generator/motor, electrical components, etc., can solve the problem of insufficient contact between two plates, increase the effective contact area, increase the surface charge density, and improve The effect of charge density
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Example Embodiment
[0056] Example 1:
[0057] see figure 1 , the electrostatic generator in this embodiment includes: the curved flexible substrate includes an organic substrate 1 and a curved dynamic layer 2, and under the action of the curved dynamic layer 2, the organic substrate 1 forms an arched curve, and the outer surface of the substrate ( The raised surface) is prepared with an electrode layer 4, a polymer film layer 3 attached to the inner surface of the substrate (concave surface), and a metal film 5 attached to the edge of the polymer film layer 3, preferably the metal film 5 The area is equivalent to the area of the polymer film 3, that is, the area is basically the same. After the edge of the metal film 5 and the edge of the polymer film 3 are pasted, an arched cavity is formed between the metal film 5 and the polymer film 3. 6. The distance between the metal film 5 and the polymer film 3 at the edge is relatively small, and the distance at the center is relatively large; wherei...
Example Embodiment
[0064] Embodiment 2:
[0065] The difference between this embodiment and the first embodiment is that a micro-nano structure is formed on the surface of the polymer film layer and / or the metal film forming the arch cavity, and the micro-nano structure faces the surface of the polymer film layer and the metal film. The cavity can effectively increase the contact area between the polymer film layer and the metal film when contacting under the action of external force. The micro-nano structure can be prepared on the opposite surfaces of the polymer film layer or the metal film, or the micro-nano structure can be prepared only on one surface of the film. The nanostructures can be arrays in the shape of lines, cubes, or quadrangular pyramids prepared by methods such as photolithography. The size of each such unit in the array is in the order of nanometers to micrometers. The shape should not limit the scope of the invention.
[0066] Taking the method of forming micro-nano struct...
Example Embodiment
[0071] Embodiment three:
[0072] In this embodiment, the preparation method of the electrostatic generator of the present invention is introduced, see Figure 5 As shown in the flow chart, the preparation method of the electrostatic generator includes:
[0073] Step S1, providing a curved flexible substrate;
[0074] Step S2, attaching the polymer film to the inner surface of the substrate;
[0075] Step S3, preparing an electrode layer on the outer surface of the substrate;
[0076] In step S4, the edge of the polymer film and the edge of the metal film are pasted with insulating glue, so that an arch cavity is formed between the polymer film and the metal film.
[0077] The flexible substrate can be a single-layer flexible material, such as curved silicone, or a two-layer composite substrate. For bilayer composite substrates, curved flexible substrates are available, including:
[0078] Step S11, providing a planar organic substrate;
[0079] Step S12, using a high te...
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