KR20190010966A - Triboelectric generator and tire including the same - Google Patents

Abstract

The present invention provides a triboelectric generator which can autonomously generate electric energy. According to an embodiment of the present invention, the triboelectric generator comprises: a first charged material including a plurality of pores of which the shape is changed by an external force; an insulation layer inserted in the first charged material; a second charged material surrounded by the insulation layer; and a wiring unit connecting the first charged material and the second charged material. An electric charge moves between the first charged material and the second charged material through the wiring unit if an area, in which the first charged material and the insulation layer are contacted, is changed as the shape of the pores is changed.

Description

TECHNICAL FIELD [0001] The present invention relates to a contact charging electric generator and a tire including the contact charging electric generator.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact charging electric generator and a tire including the contact charging electric generator and more particularly to a contact charging electric generator for generating electric energy by itself using a feature that the shape is deformed by a vertical drag acting from the ground as the tire rotates, And a tire including the same.

In recent years, in order to improve the performance and stability of tires, development of tires equipped with various sensors is underway. In order to drive the sensors inside the tires, a small battery must be mounted inside the tire or electric power must be supplied through the external power source. At this time, since the battery needs to be replaced regularly, it is inconvenient to remove the tire regularly from the wheel to replace the battery. In addition, since the size of the small battery becomes large, the mass distribution of the tire becomes uneven, so that there is a problem that the stability of the running is lowered.

On the other hand, a vertical drag force acts on the tires of automobiles, motorcycles, bicycles, etc. from the ground due to the weight of the vehicle body, and as the tire rotates, the compression and restoration of the tire repeatedly occurs at the portion contacting the ground. The embodiment of the present invention attempts to solve the above-mentioned problem by using such phenomenon.

A problem to be solved in the embodiment of the present invention is to provide a method and apparatus for detecting a tire by utilizing a phenomenon in which a vertical drag acts on a portion where a tire meets a ground surface and a tire is repeatedly compressed and restored To provide a contact charging generator that produces electrical energy.

The present invention also provides a technique for eliminating noise generated in a tire by using a sponge-like material including a plurality of pores as a constitution of a contact charging power generator.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

A contact charging power generator according to an embodiment of the present invention includes a first charging material including a plurality of pores whose shape is changed by an external force, an insulating layer inserted in the first charging material, a second charging material And a wiring part connecting the first charging material and the second charging material, wherein when the shape of the pore changes and an area of contact between the first charging material and the insulating layer changes, Charge can move between the charged material and the second charged material.

At this time, the first charge material may be a polymer, and may be made of at least one of silicone rubber and PDMS (Polydimethylsiloxane).

The first chargeable material may include at least one of carbon black, carbon nanotube, and silicon carbide having conductivity.

In addition, the second charging material may include a conductive metal, and may have a shape of at least one of a wire, a mesh, and a plate.

In addition, the insulating layer may include polytetrafluoroethylene (PTFE).

Meanwhile, the wiring portion may include a rectifier for rectifying the charge moving between the first charging material and the second charging material in one direction.

The wiring portion may further include a load or a battery using the charge rectified by the rectifier.

A tire including a contact charging electric generator according to an embodiment of the present invention includes a tire portion, a first charging material provided inside the tire portion and including a plurality of pores whose shape is changed by an external force, A second charging material surrounded by the insulating layer, and a wiring portion connecting the first charging material and the second charging material, wherein a point at which a vertical drag acts on the tire while the tire rotates If the shape of the pores changes according to the change, and the area of contact between the first charge material and the insulating layer changes, charge may move between the first charge material and the second charge material through the wiring part.

The wiring portion may include a rectifier rectifying the charge moving between each of the second charging materials and the first charging material located on a radius connecting an outer surface of the tire portion with the center axis of the tire portion in one direction .

The wiring portion may further include a load or a battery using the charge rectified by the rectifier. ,

In this case, the first chargeable material may be a polymer, and the first chargeable material may be at least one of silicone rubber and PDMS (polydimethylsiloxane).

The first chargeable material may include at least one of carbon black, carbon nanotube, and silicon carbide having conductivity.

In addition, the second charge material may include a conductive metal. At this time, the second charge material may have a shape of at least one of a wire, a mesh, and a plate.

In addition, the insulating layer may include polytetrafluoroethylene (PTFE).

The contact charging power generator according to an embodiment of the present invention includes an insulating material including a plurality of pores whose shape is changed by an external force, a charging material inserted into the insulating material, and a wiring portion connecting the charging material to a ground, When the shape of the pores changes and an area of contact between the charged material and the insulating material changes, charge can move between the charged material and the ground through the wiring portion.

In this case, the insulating material may be a polymer, and the insulating material may be at least one of silicone rubber and PDMS (polydimethylsiloxane).

Also, the charging material may include a conductive metal, and the charging material may have a shape of at least one of a wire, a mesh, and a plate.

In addition, the wiring portion may include a rectifier rectifying the charge moving between the charging material and the ground in one direction.

The wiring portion may further include a load or a battery using the charge rectified by the rectifier.

A tire including a contact charging electric generator according to an embodiment of the present invention includes a tire portion, an insulating material provided inside the tire portion and including a plurality of pores whose shape is changed by an external force, a charging material to be inserted into the insulating material, Wherein the shape of the pores varies as the point at which the perpendicular force acts on the tire portion while the tire portion is rotated and an area in which the charged material contacts the insulating material The charge can move between the charge material and the ground through the wiring portion.

The wiring portion may include a rectifier for rectifying the charge moving between each of the charging materials and the ground located on a radius connecting a certain outer surface of the tire portion with the center axis of the tire portion in one direction.

The wiring portion may further include a load or a battery using the charge rectified by the rectifier.

In addition, the insulating material may be a polymer, and the insulating material may be at least one of silicone rubber and PDMS (Polydimethylsiloxane).

In addition, the charging material may be a conductive metal, and the charging material may have a shape of at least one of a wire, a mesh, and a plate.

According to the embodiment of the present invention, as the tire rotates, the electric energy can be produced by itself using the phenomenon that compression and recovery are continuously generated in the tire. Therefore, the sensors inside the tire can be driven without a battery, The battery can be charged by itself without an external power source. Accordingly, it is possible to easily incorporate technologies such as IoT into a tire, and environmental pollution can be suppressed by producing energy using an environmentally friendly method.

In addition, since the sponge-type material including a plurality of pores is constituted by the contact charging electric generator, the noise generated in the tire can be effectively blocked.

1 is a configuration diagram of a contact charging power generator according to a first embodiment of the present invention.
2 is an exemplary view for explaining the principle of operation of the contact charging electric generator according to the first embodiment of the present invention.
3 is a cross-sectional view of a tire including the contact charging electric generator according to the first embodiment of the present invention.
Fig. 4 is a cross-sectional view showing a rotating state of a tire including the contact charging electric generator according to the first embodiment of the present invention. Fig.
FIG. 5 is a cross-sectional view of a tire including the contact charging electric generator according to the first embodiment of the present invention shown in FIG. 3, taken along the dashed line.
6 is an exemplary view for explaining a wiring portion of a tire including the contact charging electric generator according to the first embodiment of the present invention.
7 is an exemplary view for explaining a configuration in which the wiring portion of the contact charging electric generator according to the first embodiment of the present invention includes a rectifier, a load, and a battery.
8 is a configuration diagram of the contact charging power generator according to the second embodiment of the present invention.
9 is an exemplary view for explaining the principle of operation of the contact charging electric generator according to the second embodiment of the present invention.
10 is a sectional view of a tire including a contact charging electric generator according to a second embodiment of the present invention.
11 is a cross-sectional view showing a rotating state of a tire including a contact charging electric generator according to a second embodiment of the present invention.
12 is a cross-sectional view for explaining a cross section along the broken line of the tire including the contact charging electric generator according to the second embodiment of the present invention shown in Fig.
13 is an exemplary view for explaining a wiring portion of a tire including the contact charging electric generator according to the second embodiment of the present invention.
Fig. 14 is an exemplary view for explaining a configuration in which the wiring portion of the contact charging electric generator according to the second embodiment of the present invention includes a rectifier, a load, and a battery. Fig.
15 is an exemplary view of a tire including a contact charging electric generator according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, To fully disclose the scope of the invention to a person skilled in the art, and the scope of the invention is only defined by the claims.

In describing embodiments of the present invention, a detailed description of well-known functions or constructions will be omitted unless otherwise described in order to describe embodiments of the present invention. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

The functional blocks shown in the drawings and described below are merely examples of possible implementations. In other implementations, other functional blocks may be used without departing from the spirit and scope of the following detailed description. Also, while one or more functional blocks of the present invention are represented as discrete blocks, one or more of the functional blocks of the present invention may be a combination of various hardware and software configurations that perform the same function.

Also, to the extent that the inclusion of certain elements is merely an indication of the presence of that element as an open-ended expression, it should not be understood as excluding any additional elements.

Further, when a component is referred to as being connected or connected to another component, it may be directly connected or connected to the other component, but it should be understood that there may be other components in between.

Also, the expressions such as 'first, second', etc. are used only to distinguish a plurality of configurations, and do not limit the order or other features between configurations.

Prior to describing the embodiments of the present invention, the contact charging power generator is a kind of energy harvester that produces electric energy through friction energy generated in the surrounding environment. Generally, when a charge imbalance occurs in two different charge materials, the contact charge generator uses the property that charge moves from one charge material to the other charge material in order to balance charge, Production. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 is a configuration diagram of a contact charging power generator 100 according to a first embodiment of the present invention.

Referring to FIG. 1, a contact charging power generator 100 according to a first embodiment of the present invention includes a first charging material 110, a second charging material 120, an insulating layer 121, and a wiring part 130 When the shape of the first charge material 110 is deformed by an external force, an imbalance of the charge with the insulation layer 121 of the second charge material 120 in contact with the first charge material 110 occurs. Accordingly, electric energy can be generated by using the phenomenon that electric charge moves between the first charging material 110 and the second charging material 120 through the wiring part 130 in order to balance charges.

The first charge material 110 may include a plurality of pores 111 whose shapes are changed by an external force. At this time, the first charge material 110 may be composed of a polymer including elasticity such as silicone rubber and PDMS (Polydimethylsiloxane). Also, the first charge material 110 may be made to include conductive carbon black, carbon nanotubes, silicon carbide, or the like so as to have conductivity. A method of producing such a conductive polymer is a known technique (Chinese Patent Publication No. 106612080 A), and a detailed description thereof will be omitted.

In addition, the first charge material 110 may have a plurality of pores 111 therein by injecting a liquid polymer into a porous sugar mold, curing it, and then melting the sugar that has become a mold. However, this method is merely an example, and can be manufactured to include a plurality of pores 111 in the first charge material 110 through various methods.

Accordingly, since the first charge material 110 includes a plurality of pores 111, noise can be removed through sound absorption. When a sound wave propagates, the sound wave energy is transmitted to another material while rubbing against another material, and its size is attenuated. At this time, the larger the surface area where the sound wave comes in contact with the other material, the greater the attenuation of the sound energy. Accordingly, when the sound wave passes through the first charge material 110, the first charge material 11 contacts the sound wave in a wide range by the plurality of pores 111 included in the first charge material 110, It can greatly attenuate.

The insulating layer 121 is inserted into the first charging material 110 and the second charging material 120 is surrounded by the insulating layer 121. At this time, the second charge material 120 may be a conductive metal, and may have a shape of a wire, a mesh, a plate, or the like. The insulating layer 121 may also include, for example, polytetrafluoroethylene (PTFE). The insulating layer 121 of the second charging material 120 contacts the first charging material 110 only partially by the pores 111 existing in the first charging material 110, And is in equilibrium with the contact surface of the first charge material 110 and the charge.

The wiring part 130 connects the first charging material 110 and the second charging material 120. The wiring part 130 may connect the first and second charging materials 110 and 120 with a conductive line so that charge can be transferred between the first charging material 110 and the second charging material 120 . Since the direction of charge transfer between the first charge material 110 and the second charge material 120 varies depending on the type of external force acting on the first charge material 110 (compressive force, tensile force, etc.) 130 may include a rectifier 131 for rectifying the charge to move in a predetermined direction as shown in FIG. 7, and may include a load 132 using rectified charge or a battery 133 for charging the rectified charge . At this time, the load 132 may include various sensors and the like. Meanwhile, the connection structure of the rectifier 131 and the load 132 shown in FIG. 7 is merely an example, and is not limited thereto.

2 is an exemplary diagram for explaining the principle of operation of the contact charging power generator 100 according to the first embodiment of the present invention.

Referring to FIG. 2, when no external force is applied to the first charging material 110, the first charging material 110 and the second charging material (not shown) are removed by the pores 111 existing in the first charging material 110 120 are partially in contact with each other.

At this time, when the first charge material 110 is compressed by an external force, the size of the pores 111 of the first charge material 110 is reduced and the insulation between the first charge material 110 and the second charge material 120 The contact area of the layer 121 becomes relatively large. As a result, charge imbalance occurs between the first charging material 110 and the insulating layer 121 of the second charging material 120, so that the first charging material 110 and the second charging material 120 ).

Thereafter, when the external force acting on the first charge material 110 is removed and the shape of the first charge material 110 is restored, the pores 111 return to the original size again, Charge is transferred from the second charge material 120 to the first charge material 110 in order to achieve an equilibrium.

As the external force is applied to or removed from the first charge material 110, electric current flows between the first charge material 110 and the second charge material 120 while electric charge moves.

3 is a cross-sectional view of a tire 10 including a contact charging generator according to a first embodiment of the present invention.

A tire 10 including a contact charging electric generator according to the first embodiment of the present invention includes a tire portion 11 and a contact charging electric generator 100. The first charging material 110 of the contact charging electric generator 100, May be provided on the inner side of the tire portion 11. At this time, a vertical drag force acts on a portion where the tire section 11 abuts against the paper surface. As the tire section 11 rotates, the compression and restoration of the tire section 11 repeatedly occurs at a part abutting the paper surface. Accordingly, if the size of the pores 111 of the first charge material 110 is changed and the contact area between the first charge material 110 and the insulating layer 121 is changed, charge imbalance occurs, Charge can be transferred between the first charge material 110 and the second charge material 120 through the first charge material 110. [

4 is a cross-sectional view showing a state in which the tire 10 including the contact charging electric generator 100 according to the first embodiment of the present invention rotates.

As shown in FIG. 4, when the tire portion 11 rotates clockwise, a portion of the second charging material 120a, which is provided at a portion where the tire portion 11 starts to contact the ground, The size of the pores 111 of the first charge material 110 decreases and the surface area of the first charge material 110 in contact with the insulating layer 121 increases, (110).

The first charging material 110 around the insulating layer 121 of the second charging material 120b provided at the portion where the tire portion 11 starts contacting with the ground begins to fall in the size of the pores 111 The surface area at which the first charge material 110 contacts the insulating layer 121 decreases, so that charge moves from the first charge material 110 to the second charge material 120b.

On the other hand, as in the case of the second charging material 120a or the second charging material 120b, the first charging material 120a and the second charging material 120b are arranged on the radial line connecting the outer surface of the tire portion 11 with the center axis 12 of the tire portion 11. [ 5, since the external force acts on the two charged materials 120 in the same direction, the charge direction of the two charged materials 120 is the same as that of the charged portion 120 of the tire portion 11 in the central axis 12 of the tire portion 11, The second charging materials 120 located on the radius connecting the outer surfaces can be connected to the rectifier 131 together.

6 is an exemplary view for explaining a wiring portion 130 of a tire 10 including a contact charging power generator according to the first embodiment of the present invention.

6, the second charging materials 120 located on the radius connecting the outer surfaces of the tire part 11 to the center axis 12 of the tire part 11 are connected together by one rectifier 131, And the electric charges passing through the respective rectifiers 131 move in the same direction even if the directions of electric charge moving from the second charging materials 120 connected to the respective rectifiers 131 are different, The load 132 connected to the battery 133 or the battery 133 can use a current flowing in a certain direction.

8 is a configuration diagram of the contact charging power generator 200 according to the second embodiment of the present invention.

Referring to FIG. 8, the contact charging power generator 200 according to the second embodiment of the present invention includes an insulating material 210, a charging material 220, and a wiring portion 230. At this time, if the shape of the insulating material 210 is deformed by an external force, a charge imbalance occurs on the surface of the charging material 220 which is in contact with the insulating material 210. Accordingly, electric energy can be generated by using the phenomenon that charge moves between the charging material 220 and the ground through the wiring part 230 in order to balance charges.

The insulating material 210 may include a plurality of pores 211 whose shape is changed by an external force. In this case, the insulating material 210 may be made of a polymer including elasticity such as silicone rubber and PDMS (Polydimethylsiloxane).

In addition, the insulating material 210 may have a plurality of pores 211 therein in such a manner that a liquid polymer is injected into a porous sugar mold and cured, and then sugar, which has become a mold, is melted. However, this method is merely an example, and may be manufactured to include a plurality of pores 211 inside the insulating material 210 through various methods.

Accordingly, since the insulating material 210 includes a plurality of pores 211, noise can be removed through sound absorption. When a sound wave propagates, the sound wave energy is transmitted to another material while rubbing against another material, and its size is attenuated. At this time, the larger the surface area where the sound wave comes in contact with the other material, the greater the attenuation of the sound energy. Accordingly, when the sound wave passes through the insulating material 210, the insulating material 210 can greatly attenuate the sound wave energy by making contact with the sound wave in a wide range by the plurality of pores 211 included in the insulating material 210.

The charging material 220 is inserted into the insulating material 210. At this time, the charging material 220 may be a conductive metal, and may have a shape such as a wire, a mesh, and a plate. The charging material 220 contacts only a part of the insulating material 210 by the pores 211 existing in the insulating material 210 and when the external force is not applied, .

The wiring part 230 connects the charging material 220 and the ground. At this time, the wiring part 230 may connect the charging material 220 and the ground with a wire so that the charge can move between the charging material 220 and the ground. 14, since the direction of the electric charge moves between the charging material 220 and the ground according to the type of external force (compressive force, tensile force, etc.) acting on the insulating material 210, And may include a rectifier 231 rectifying the charge to move in a certain direction, and may include a load 232 using the rectified charge or a battery 233 charging the rectified charge. At this time, the load 232 may include various sensors and the like. Meanwhile, the connection structure of the rectifier 231 and the load 232 shown in FIG. 14 is merely an example, and is not limited thereto.

9 is an exemplary diagram for explaining the principle of operation of the contact charging electric generator 200 according to the second embodiment of the present invention.

9, when an external force is not applied to the insulating material 210, the insulating material 210 and the charging material 220 are partially in contact with each other by the pores 211 existing in the insulating material 210 have.

At this time, when the insulating material 210 is compressed by an external force, the size of the pores 211 of the insulating material 210 is reduced, and the area in which the insulating material 210 and the charging material 220 are in contact with each other is relatively increased . As a result, charge is imbalanced between the insulating material 210 and the charging material 220, so that the charge moves from the ground to the charging material 220 in order to balance the charge.

Thereafter, when the external force acting on the insulating material 210 is removed and the shape of the insulating material 210 is restored, the pores 211 are again returned to their original size, and the imbalance of the charges is generated again. The charge moves from the charge material 220 to the ground.

As the external force is applied to or removed from the insulating material 210, electric current flows between the charging material 220 and the ground while electric charges move.

10 is a cross-sectional view of a tire 20 including a contact charging electric generator according to a second embodiment of the present invention.

The tire 20 including the contact charging electric generator according to the second embodiment of the present invention includes the tire portion 21 and the contact charging electric generator 200 and the insulating material 210 of the contact charging electric generator 200 is a tire As shown in Fig. At this time, a vertical drag force acts on a portion of the tire portion 21 which abuts against the ground. As the tire portion 21 rotates, the compression and restoration of the tire portion 21 repeatedly occurs at a portion abutting the ground. Accordingly, if the size of the pores 211 of the insulating material 210 changes and an area of contact between the insulating material 210 and the charging material 220 changes, charge imbalance occurs. Therefore, the charging material 220 and ground.

11 is a cross-sectional view showing a state in which a tire 20 including a contact charging electric generator 200 according to a second embodiment of the present invention is rotated.

11, the insulating material 210 around the charging material 220a provided at a portion where the tire portion 21 starts to contact the ground when the tire 20 rotates in the clockwise direction passes through the pores 211 The amount of surface contact between the insulating material 210 and the charging material 220a increases so that charge moves from the ground to the charging material 220a.

The insulating material 210 around the charging material 220b provided at the portion where the tire portion 21 starts to fall after the ground contact is restored to the insulating material 210 and the charging material The surface area contacted by the charging member 220b decreases, so that charge moves from the charging member 220b to the ground.

The charging member 220 positioned on the radius connecting the outer surface of the tire unit 21 with the center axis 22 of the tire unit 21, such as the charging member 220a or the charging member 220b, The radial direction connecting the outer surface of the tire portion 21 with the center axis 22 of the tire portion 21 is set to be the same as the direction of the outer surface of the tire portion 21, The second charging materials 220 located at the same position of the first charging member 220 can be connected to the rectifier 231 together.

13 is an exemplary view for explaining the wiring portion 230 of the tire 20 including the contact charging electric generator according to the second embodiment of the present invention.

13, the charging materials 220 located on the radius connecting the outer surfaces of the tire portion 21 at the central axis 22 of the tire portion 21 are connected together to one rectifier 231 And the electric charges passing through the respective rectifiers 231 move in the same direction even if the directions of electric charge moving from the charged materials 220 connected to the respective rectifiers 231 are different, 232 or the battery 233 can use a current flowing in a certain direction.

According to the above-described embodiment, electric energy can be produced by itself by utilizing the phenomenon that compression and recovery are continuously generated in the tires 11 and 21 as the tires 11 and 21 rotate. Therefore, the tires 11 and 21 ) Internal sensors can be driven without a battery or a battery mounted inside a tire can be charged by itself without an external power source. Accordingly, technologies such as IoT can be easily applied to the tires 11 and 21, and environmental pollution can be suppressed by producing energy by an environmentally friendly method.

In addition, since the sponge-type materials 110 and 210 including the plurality of pores 111 and 211 are constituted by the contact charging generators 100 and 200, the noise generated in the tires 11 and 21 can be effectively blocked .

Thus, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. It is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. .

10: Tire including contact charging generator
11: Tire section
12: center axis
100: contact charging generator
110: first charge material
111: Groundwork
120: Second charge material
121: Insulating layer
130: wiring part
131: rectifier
132: Load
133: Battery
20: Tire with contact charging generator
21: tire portion
22: center axis
200: contact charging generator
210: Insulating material
211: Porcelain
220: charge material
230: wiring part
231: Rectifier
232: Load
233: Battery

Claims (32)

A first charge material including a plurality of pores whose shapes are changed by an external force;
An insulating layer inserted in the first charge material;
A second charge material surrounded by the insulating layer; And
And a wiring portion connecting the first charging material and the second charging material,
When the shape of the pores changes and an area of contact between the first charge material and the insulating layer changes, charge moves between the first charge material and the second charge material through the wiring portion
Contact charging generator. The method according to claim 1,
The first chargeable material is a charge-
Polymer
Contact charging generator. 3. The method of claim 2,
The first chargeable material is a charge-
Silicone rubber and PDMS (Polydimethylsiloxane).
Contact charging generator. 3. The method of claim 2,
The first chargeable material is a charge-
A material containing at least one of carbon black, carbon nanotubes, and silicon carbide having conductivity,
Contact charging generator. The method according to claim 1,
Wherein the second chargeable material is a charge-
Containing a conductive metal
Contact charging generator. The method according to claim 1,
Wherein the second chargeable material is a charge-
Having a shape of at least one of a wire, a mesh,
Contact charging generator. The method according to claim 1,
Wherein the insulating layer
Including polytetrafluoroethylene (PTFE)
Contact charging generator. The method according to claim 1,
Wherein,
And a rectifier for rectifying the charge moving between the first charge material and the second charge material in one direction
Contact charging generator. 9. The method of claim 8,
Wherein,
Further comprising a load or a battery using the charge rectified by the rectifier
Contact charging generator. A tire portion;
A first charging material provided inside the tire portion and including a plurality of pores whose shape is changed by an external force;
An insulating layer inserted in the first charge material;
A second charge material surrounded by the insulating layer; And
And a wiring portion connecting the first charging material and the second charging material,
When the area of contact of the first charged material with the insulating layer changes due to a change in the shape of the pores as a point at which a vertical drag acts on the tire portion while the tire rotates, Charge moves between the material and the second charged material
Tires containing contact charging generators. 11. The method of claim 10,
Wherein,
And a rectifier for rectifying the charge moving between each of the second charging materials and the first charging material located on a radius connecting an outer surface of the tire portion with the center axis of the tire portion in one direction
Tires containing contact charging generators. 12. The method of claim 11,
The wiring portion
Further comprising a load or a battery using the charge rectified by the rectifier
Tires containing contact charging generators. 11. The method of claim 10,
The first chargeable material is a charge-
Polymer
Tires containing contact charging generators. 14. The method of claim 13,
The first chargeable material is a charge-
Silicone rubber and PDMS (Polydimethylsiloxane).
Tires containing contact charging generators. 14. The method of claim 13,
The first chargeable material is a charge-
A material containing at least one of carbon black, carbon nanotubes, and silicon carbide having conductivity,
Tires containing contact charging generators. 11. The method of claim 10,
Wherein the second chargeable material is a charge-
Containing a conductive metal
Tires containing contact charging generators. 11. The method of claim 10,
Wherein the second chargeable material is a charge-
Having a shape of at least one of a wire, a mesh,
Tires containing contact charging generators. 11. The method of claim 10,
Wherein the insulating layer
Including polytetrafluoroethylene (PTFE)
Tires containing contact charging generators. An insulating material including a plurality of pores whose shapes are changed by an external force;
A charge material inserted into the insulating material; And
And a wiring portion connecting the charging material to the ground,
When the shape of the pores changes and an area of contact between the charged material and the insulating material changes, an electric charge moves between the charged material and the ground through the wiring portion
Contact charging generator. 20. The method of claim 19,
Wherein the insulating material
Polymer
Contact charging generator. 21. The method of claim 20,
Wherein the insulating material
Silicone rubber and PDMS (Polydimethylsiloxane).
Contact charging generator. 20. The method of claim 19,
The charging material may include,
Containing a conductive metal
Contact charging generator. 20. The method of claim 19,
The charging material may include,
Having a shape of at least one of a wire, a mesh,
Contact charging generator. 20. The method of claim 19,
Wherein,
And a rectifier rectifying the charge moving between the charged material and the ground in one direction
Contact charging generator. 25. The method of claim 24,
Wherein,
Further comprising a load or a battery using the charge rectified by the rectifier
Contact charging generator. A tire portion;
An insulating material provided inside the tire portion and including a plurality of pores whose shape is changed by an external force;
A charge material inserted into the insulating material; And
And a wiring portion connecting the charging material to the ground,
When the shape of the pores changes as the point at which the perpendicular force acts on the tire portion while the tire rotates, and the area of contact between the charging material and the insulating material changes, the charging material and the ground The charge moves between
Tires containing contact charging generators. 27. The method of claim 26,
Wherein,
And a rectifier rectifying in one direction the charge moving between each of the charging materials and the ground located on a radius connecting an outer surface of the tire portion with the center axis of the tire portion
Tires containing contact charging generators. 28. The method of claim 27,
Wherein,
Further comprising a load or a battery using the charge rectified by the rectifier
Tires containing contact charging generators. 27. The method of claim 26,
Wherein the insulating material
Polymer
Tires containing contact charging generators. 30. The method of claim 29,
Wherein the insulating material
Silicone rubber and PDMS (Polydimethylsiloxane).
Tires containing contact charging generators. 27. The method of claim 26,
The charging material may include,
Containing a conductive metal
Tires containing contact charging generators. 27. The method of claim 26,
The charging material may include,
Having a shape of at least one of a wire, a mesh,
Tires containing contact charging generators.

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