CN219372308U - Direct-current friction nano generator - Google Patents
Direct-current friction nano generator Download PDFInfo
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- CN219372308U CN219372308U CN202320254714.XU CN202320254714U CN219372308U CN 219372308 U CN219372308 U CN 219372308U CN 202320254714 U CN202320254714 U CN 202320254714U CN 219372308 U CN219372308 U CN 219372308U
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Abstract
The utility model discloses a direct-current friction nano generator, which comprises an upper disc body and a lower disc body parallel to the upper disc body; a first cylinder made of insulating material, a second cylinder made of conductive material and a third cylinder are rotatably connected between the upper disc body and the lower disc body; the outer surfaces of the second cylinder and the third cylinder are fixedly sleeved with a second friction film and a third friction film respectively; the first friction film is closely contacted with the second friction film and the third friction film, the first friction film and the second friction film are sequentially arranged from negative to positive in a triboelectric sequence. The utility model has simple structure, is beneficial to reducing the abrasion of the medium and improves the durability and the stability of the device.
Description
Technical Field
The utility model relates to the field of friction nano power generation, in particular to a direct current friction nano power generator.
Background
As an emerging energy conversion device, a friction nano generator based on contact electrification and electrostatic induction can generate periodic alternating current output under the drive of external force; the alternating current signal can supply power for the electronic equipment after rectification; the introduction of the rectifying component not only increases the volume of the device, but also reduces the energy utilization efficiency; it is therefore necessary to develop a friction nano-generator for direct current output.
At present, the existing direct current generator mainly has three modes of electric brushes, multiphase coupling and air breakdown; however, the above modes have a problem that the structure is complicated: in order to solve the problem that the rotary direct current friction nano generator must use an electric brush connection circuit; to change the phase of the pulse signal and realize stable output with crest factor of about 1, a multiphase rotating structure is required to be constructed; precise control of the small gap between the charge collecting electrode and the friction material is required to maintain stable air breakdown.
Furthermore, limited by the operating mechanism of contact electrification, the reciprocating friction between dielectric layers makes stability and durability of the device a great challenge.
The above technical problems need to be solved.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a direct-current friction nano generator which has a simple structure, is beneficial to reducing the abrasion of a medium and improves the durability and the stability of a device.
In order to achieve the above purpose, the utility model provides a direct-current friction nano generator, which comprises an upper disk body and a lower disk body parallel to the upper disk body; a first cylinder made of insulating material, a second cylinder made of conductive material and a third cylinder are rotatably connected between the upper disc body and the lower disc body; the outer surfaces of the second cylinder and the third cylinder are fixedly sleeved with a second friction film and a third friction film respectively; the first friction film is closely contacted with the second friction film and the third friction film, the first friction film and the second friction film are sequentially arranged from negative to positive in a triboelectric sequence.
As a further improvement of the technical scheme of the utility model, the second cylinder is electrically connected with the third cylinder, and a load is arranged between the connection circuits of the second cylinder and the third cylinder.
As a further improvement to the technical scheme of the utility model, the center of the first cylinder is fixedly connected with a power input shaft, and the power input shaft passes through a shaft hole formed in the upper disc body or the lower disc body.
As a further improvement of the technical scheme of the utility model, the second cylinder and the third cylinder are made of aluminum metal.
As a further improvement of the technical scheme of the utility model, the second cylinder and the third cylinder are arranged on the left side and the right side of the first cylinder in parallel.
As a further improvement to the technical scheme of the utility model, the upper disc body and the lower disc body are provided with positioning holes for being matched with the second cylinder and the third cylinder for positioning, and a rotating bearing is arranged in each positioning hole.
As a further improvement of the technical scheme of the utility model, the first friction film is made of polyester fur, the second friction film is made of nylon, and the third friction film is made of FEP.
As a further improvement of the solution according to the utility model, the second cylinder and the third cylinder have the same diameter.
As a further improvement of the technical scheme of the utility model, the diameter of the first cylinder is twice that of the second cylinder and the third cylinder.
Compared with the prior art, the utility model has the following beneficial technical effects:
according to the direct-current friction nano generator provided by the utility model, the first friction film is tightly contacted with the second friction film and the third friction film, the first cylinder can drive the second cylinder and the third cylinder to simultaneously rotate when being rotated under the action of external force under the action of friction force, and the friction among the friction films can lead positive and negative charges to be separated and directionally moved in a triboelectric sequence due to the fact that the third friction film, the first friction film and the second friction film are sequentially from negative to positive in the triboelectric sequence, so that direct-current output can be generated, and direct-current power generation is realized; the utility model has simple structure, and the rolling friction is used for replacing the sliding friction, thereby being beneficial to reducing the abrasion of the medium and improving the durability and the stability of the device.
Additional aspects of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an assembly view of the present utility model;
FIG. 3 is a schematic view of the structure of the upper tray body in the present utility model;
FIG. 4 is a schematic view of the structure of the first cylinder in the present utility model;
FIG. 5 is a schematic view of a first friction film according to the present utility model;
FIG. 6 is a diagram showing the connection of a second cylinder to a second friction film according to the present utility model;
FIG. 7 is a diagram showing the connection of a third cylinder to a third friction film according to the present utility model;
FIG. 8 is a schematic view of the structure of the lower disc of the present utility model;
fig. 9 is a schematic diagram of the power generation principle of the present utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
Example 1
As shown in fig. 1-9: the direct-current friction nano generator provided by the embodiment comprises an upper disc body 1 and a lower disc body 2 parallel to the upper disc body 1; a first cylinder 3 made of insulating material, a second cylinder 4 and a third cylinder 5 made of conductive material are rotatably connected between the upper disc body 1 and the lower disc body 2; the outer surfaces of the first cylinder 3 are fixedly sleeved with a first friction film 6, and the outer surfaces of the second cylinder 4 and the third cylinder 5 are fixedly sleeved with a second friction film 7 and a third friction film 8 respectively; the first friction film 6 is in close contact with the second friction film 7 and the third friction film 8, the first friction film 6 and the second friction film 7 are sequentially arranged from negative to positive in a triboelectric sequence.
"upper" and "lower" are oriented as shown in FIG. 2; the upper tray body 1 and the lower tray body 2 are both disc structures and are made of insulating hard materials (such as organic glass); the first cylinder 3 is coaxially arranged with the upper disc body 1 and the lower disc body 2; the first cylinder 3 is also made of an insulating hard material; the first cylinder 3 may be a hollow cylinder structure to reduce its own weight; the second cylinder 4 and the third cylinder 5 are made of hard conductive materials, for example, the second cylinder 4 and the third cylinder 5 can be made of aluminum metal, so as to form an aluminum bar structure.
The first friction film 6, the first friction film 6 and the third friction film 8 are all cylindrical film structures; triboelectric sequences refer to sequences in which various friction materials are arranged according to the difference in electrification properties (i.e., which is positively charged, which is negatively charged); as one example, the first friction film 6 may be made of polyester fur, the second friction film 7 may be made of nylon, and the third friction film 8 may be made of FEP (fluorinated ethylene propylene copolymer).
The first friction film 6 is in close contact with the second friction film 7 and the third friction film 8, and under the action of friction force, the first cylinder 3 can drive the second cylinder 4 and the third cylinder 5 to rotate simultaneously when being rotated under the action of external force, and as the third friction film 8, the first friction film 6 and the second friction film 7 are sequentially from negative to positive in a triboelectric sequence, friction among the friction films can lead to positive and negative charge separation and directional movement, thereby generating direct current output and realizing direct current power generation.
As the utilization of direct current power generation, the second cylinder 4 and the third cylinder 5 are electrically connected (through a wire), and a load 9 is arranged between the connection circuits of the second cylinder 4 and the third cylinder 5; the load 9 may be an electronic device using direct current or may be an energy storage device such as a capacitor.
In order to facilitate the power input, the center of the first cylinder 3 is fixedly connected with a power input shaft 10, and the power input shaft 10 passes through a shaft hole 11 formed in the upper disc body 1 (or the lower disc body 2); the power input shaft 10 may be combined with a fluid driving device such as a cup to generate electricity using mechanical energy; bearings can be arranged at the shaft holes.
The specific positions of the first cylinder 3, the second cylinder 4 and the third cylinder 5 can be determined according to the needs; preferably, the second cylinder 4 and the third cylinder 5 may be disposed in parallel on the left and right sides of the first cylinder 3; positioning holes 12 for being matched with the second cylinder 4 and the third cylinder 5 for positioning can be formed in the upper disc body 1 and the lower disc body 2, and a rotating bearing 13 is arranged in each positioning hole; the rotating bearing 13 is a metal piece, and the second cylinder 4 and the third cylinder 5 can be connected with wires through the rotating bearing 13, so that electric connection is realized.
The specific specifications of the first cylinder 3, the second cylinder 4 and the third cylinder 5 can be determined according to the needs; preferably, the second cylinder 4 and the third cylinder 5 may have the same diameter, and the diameter of the first cylinder 3 is one time the diameters of the second cylinder 4 and the third cylinder 5.
Example 2
The present embodiment provides a power generation and release method of a direct current friction nano-generator, wherein the structure of the direct current friction nano-generator is the same as that of embodiment 1, and the description thereof is omitted.
In this embodiment, the main process of the method is as follows:
p1. contact electrification phase: when the power input shaft 10 drives the first cylinder 3 and the first friction film 6 to rotate, positive and negative charges are separated due to friction between the first friction film 6 and the second friction film 7 and between the first friction film 6 and the third friction film 8, the first friction film 6 rotates half a circle under the assumption that the second friction film 7 and the third friction film 8 rotate one circle, charges are uniformly distributed on the three friction films, and at the moment, the charges on the first friction film 6 reach saturation.
P2. charge dissipation phase: the positive charges on the second friction film 7 and the negative charges on the third friction film 8 are respectively dissipated to the second cylinder 4 and the third cylinder 5, and direct current output is generated through an external load 9;
p3. transfer charge phase: the second friction film 7 and the third friction film 8 rotate for one turn, the first friction film 6 rotates for half turn, negative charges on the first friction film 6 are transferred to the third friction film 8 in the rotating process, and positive charges are transferred to the second friction film 7 in the same way; this procedure indicates that the first tribofilm 6 has a function of transferring electric charges;
p4. sequentially cycling through P1-P3, continuously generating dc output until the power input shaft 10 stops rotating.
The foregoing is merely exemplary of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. The utility model provides a direct current friction nano generator which characterized in that:
comprises an upper tray body and a lower tray body parallel to the upper tray body; a first cylinder made of insulating material, a second cylinder made of conductive material and a third cylinder are rotatably connected between the upper disc body and the lower disc body;
the outer surfaces of the second cylinder and the third cylinder are fixedly sleeved with a second friction film and a third friction film respectively; the first friction film is closely contacted with the second friction film and the third friction film, the first friction film and the second friction film are sequentially arranged from negative to positive in a triboelectric sequence.
2. A direct current friction nano generator as set forth in claim 1, wherein:
the second cylinder is electrically connected with the third cylinder, and a load is arranged between the connecting circuits of the second cylinder and the third cylinder.
3. A direct current friction nano generator as set forth in claim 1, wherein:
the center of the first cylinder is fixedly connected with a power input shaft, and the power input shaft penetrates through a shaft hole formed in the upper disc body or the lower disc body.
4. A direct current friction nano generator as set forth in claim 1, wherein:
the second cylinder and the third cylinder are made of aluminum metal.
5. A direct current friction nano generator as set forth in claim 1, wherein:
the second cylinder and the third cylinder are arranged on the left side and the right side of the first cylinder in parallel.
6. A direct current friction nano generator according to any one of claims 1 to 5, wherein:
the upper disc body and the lower disc body are provided with positioning holes for being matched with the second cylinder and the third cylinder for positioning, and a rotating bearing is arranged in each positioning hole.
7. A direct current friction nano generator according to any one of claims 1 to 5, wherein:
the first friction film is made of polyester fur, the second friction film is made of nylon, and the third friction film is made of FEP.
8. A direct current friction nano generator according to any one of claims 1 to 5, wherein:
the second cylinder and the third cylinder have the same diameter.
9. The direct current friction nano generator of claim 8, wherein:
the diameter of the first cylinder is one time of the diameters of the second cylinder and the third cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320254714.XU CN219372308U (en) | 2023-02-20 | 2023-02-20 | Direct-current friction nano generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320254714.XU CN219372308U (en) | 2023-02-20 | 2023-02-20 | Direct-current friction nano generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219372308U true CN219372308U (en) | 2023-07-18 |
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ID=87147507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320254714.XU Active CN219372308U (en) | 2023-02-20 | 2023-02-20 | Direct-current friction nano generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219372308U (en) |
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2023
- 2023-02-20 CN CN202320254714.XU patent/CN219372308U/en active Active
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