KR20180077648A - electrical energy harvester capable of measuring deformation and tactile force - Google Patents

Abstract

Disclosed is an electrical energy harvesting device capable of measuring deformation and a tactile force. According to one embodiment, the electrical energy harvesting device capable of measuring the deformation and the tactile force includes a first tubular structure in which a second structure is disposed. In this case, the first structure includes: a first tubular body; and a first electrode disposed on an outer surface of the first body. The second structure includes: a second body disposed inside the first body; and a second electrode disposed on an outer surface of the second body. At least a part of an inner surface of the first body and at least a part of the second electrode are repeatedly brought into contact and non-contact with each other by an external force to generate triboelectric energy. According to another embodiment, the electrical energy harvesting device capable of measuring the deformation and the tactile force includes a fabric formed by weaving a plurality of tubular first structures in which a second structure is disposed. In this case, the first structure includes: a first tubular body; and a first electrode disposed on an outer surface of the first body. The second structure includes: a second body disposed inside the first body; and a second electrode disposed on an outer surface of the second body. At least a part of an inner surface of the first body and at least a part of the second electrode are repeatedly brought into contact and non-contact with each other by an external force applied to the fabric to generate triboelectric energy. The fabric is woven by intersecting a part of the first structures (hereinafter referred to as ″weft part″) with a remaining part of the first structures (hereinafter referred to as ″warp part″).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric energy harvesting device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to an electric energy harvesting element, and more particularly, to an electric energy harvesting element using a triboelectricity. In addition to harvesting electric energy through triboelectricity, To an electric energy harvesting device capable of tactile measurement.

This research was supported by the Information and Communication Technology Promotion Center (Project No.: 1711035244) by the future Creation Science Department (Research title: Development of core semiconductor design technology for information equipment and manpower training).

In addition, this study was supported by Korea Foundation for Research and Development (Fund No: 1711039564) by the future creation science department (research title: multifunctional smart fiber and clothes sensor based on self-development using it).

In recent years, under the influence of ubiquitous environment, the slow development speed of the power supply medium driving the portable electronic device technology has been pointed out as a problem causing the necessity of continuous replacement of the power supply device and the increase of the maintenance cost accordingly have. Therefore, energy harvesting technology is required to supply permanent energy to portable electronic devices without using external power source or batteries requiring replacement.

With the development of portable electronic devices, there is an increasing demand and research for human clothing or wearable electronic devices such as wearable computers, smart wear, and the like. If power is supplied to electronic devices by energy capture technology using energy generated from human motion, it is possible to solve problems of existing power supply media and contribute to technological development of related fields as a sustainable energy supply source free from time and space limitation have. In addition, clothes or wearable energy harvesting devices have the advantage of being highly wearable and capable of unconscious energy harvesting.

Prior art related to electrical energy harvesting devices using triboelectricity include Korean Patent Laid-Open Patent Application No. 10-2015-0027415, "Textile-based Energy Generator", Korean Patent Publication No. 10-2015-0091366, "Impulse Generator and Generator Set" .

Electrons of the prior art are spaced apart from each other with first and second electrodes disposed on opposite sides of the flexible and stretch fabric structure so as to be opposed to each other, that is, facing each other, and the upper surface of the first electrode and the second electrode And generates electric energy when friction occurs between the energy generating layers due to an external force through the energy generating layers respectively disposed on the lower surface or when the contact and separation phenomenon is periodically issued.

The latter is an impulse generator and a generator set using friction energy, which connects a first substrate and a second substrate on which a first electrode and a second electrode are respectively disposed, separates the substrates from each other in a state of facing each other And an elastic connecting portion for restoring the original position when the applied external force disappeared. In this case, the insulating material is disposed on the surface of one of the first electrode and the second electrode, and when the external force is not applied, the insulating material is separated from the other one of the first electrode or the second electrode The present invention can not generate electric energy in the case where external force is not applied to both ends of the first electrode and the second electrode, for example, in a situation where vibration is generated.

On the contrary, the technique disclosed in this specification is a structure in which a second structure is disposed inside a first tubular structure and repeatedly occurs between an electrode of the second structure and an inner surface of the first structure when external force or vibration is applied from the outside Contact electric contact phenomenon and non-contact electric phenomenon. The principle of generation of electric energy follows the principle of generic triboelectric energy generation, but differs from the prior art in the technology construction. Further, the electric energy harvesting element disclosed in this specification differs from the prior art in that it can measure the deformation of the electric energy harvesting element in addition to the generation of electric energy.

In this specification, a tubular first structure, in which a second structure is disposed, is utilized to create a deformation that produces electrical energy through the triboelectricity between at least a portion of the inner surface of the first structure and a second electrode disposed on the outer surface of the second structure We propose an electric energy harvesting device technology that can measure and tactile measurement.

In the present specification, strain measurement and tactile measurement capable of detecting deformation of an electric energy harvesting element by measuring a change in capacitance through the first deformation detecting sensor or a change in resistance value through the second deformation detecting sensor Potential electric energy harvesting device technology.

In one embodiment, an electrical energy harvesting element capable of deformation measurement and tactile measurement is disclosed. The electrical energy harvesting device capable of measuring deformation and tactile measurement includes a first tubular structure in which a second structure is disposed. In this case, the first structure includes a first body having a tubular shape and a first electrode disposed on an outer surface of the first body. The second structure includes a second body disposed inside the first body and a second electrode disposed on an outer surface of the second body. At least a part of the inner surface of the first body and at least a part of the second electrode are repeatedly brought into contact and non-contact with each other by an external force to generate triboelectric energy.

Meanwhile, the electric energy harvesting device capable of measuring deformation and tactile sense according to an embodiment may further include a first deformation detecting sensor connected to the first electrode and the second electrode. In this case, the first deformation detecting sensor may sense the external force applied to the first structure or the second structure by measuring a change in capacitance between the first electrode and the second electrode.

The electrical energy harvesting device capable of measuring deformation and tactile sense according to an embodiment includes a third electrode and a fourth electrode that are in contact with the first electrode, and a second electrode that is connected to the third electrode and the fourth electrode, And may further include a detection sensor. In this case, the third electrode and the fourth electrode may be spaced apart from each other by a predetermined distance to contact the first electrode. Wherein the second deformation detecting sensor detects a change in resistance value of the first electrode which is deformed in the course of repeating contact and non-contact between the at least a part of the inner surface of the first body and the at least a part of the second electrode, So that the deformation of the first structure can be detected.

The electrical energy harvesting device capable of measuring deformation and tactile sense according to an embodiment includes a fifth electrode and a sixth electrode in contact with the second electrode, and a second electrode connected to the fifth electrode and the sixth electrode, And may further include a detection sensor. The fifth electrode and the sixth electrode may be spaced apart from each other at a predetermined distance to be in contact with the second electrode. Wherein the second deformation detecting sensor measures a change in resistance value of the second electrode deformed in the course of repeatedly contacting and non-contacting the at least a part of the inner surface of the first body and the at least a part of the second electrode, The deformation of the second structure can be detected.

In addition, the electrical energy harvesting device capable of measuring strain and tactile sense according to an embodiment may further include a storage circuit electrically connected to the first electrode and the second electrode to store the triboelectric energy.

In another embodiment, an electrical energy harvesting element is provided that is capable of strain measurement and tactile measurement. The electric energy harvesting device capable of measuring deformation and tactile sense includes a fabric formed by weaving a plurality of tubular first structures in which a second structure is disposed. In this case, the first structure includes a first body having a tubular shape and a first electrode disposed on an outer surface of the first body. The second structure includes a second body disposed inside the first body and a second electrode disposed on an outer surface of the second body. At least a portion of the inner surface of the first body and at least a portion of the second electrode are repeatedly brought into contact and non-contact with each other by an external force applied to the fabric to generate triboelectric energy. The fabric is woven by intersecting a part of the plurality of first structures - hereinafter referred to as a weft portion - and a remaining portion of the plurality of first structures, hereinafter referred to as a warp portion.

The electric energy harvesting device capable of measuring deformation and tactile sense according to another embodiment may be connected to the first electrode and the second electrode of the weft portion or may be connected to the first electrode and the second electrode of the warp portion, Sensor. ≪ / RTI > The first deformation detecting sensor is applied to the fabric by measuring a change in capacitance between the first electrode and the second electrode of the weft portion according to the external force or a change in capacitance between the first electrode and the second electrode of the warp portion The external force can be detected.

The electric energy harvesting device capable of measuring deformation and tactile sense according to another embodiment may further include a first deformation detecting sensor connected to the second electrode of the weft portion and the second electrode of the warp portion. The first deformation detecting sensor may sense the external force applied to the fabric by measuring a change in capacitance between the second electrode of the weft portion and the second electrode of the warp portion according to the external force.

An electric energy harvesting device capable of measuring deformation and tactile sense according to another embodiment includes an insulating layer disposed on at least one surface selected from a first electrode of the weft portion, a first electrode of the warp portion, As shown in FIG. The insulating layer may prevent direct contact between the first electrode of the weft portion and the first electrode of the warp portion in the process of weaving the weft crossing the weft portion and the warp portion.

In this case, the electrical energy harvesting device capable of measuring deformation and tactile sense according to another embodiment may further include a first deformation detecting sensor connected to the first electrode of the weft portion and the first electrode of the warp portion. The first deformation detecting sensor can sense the external force applied to the fabric by measuring a change in capacitance according to a change in the contact area between the first electrode of the weft portion and the first electrode of the warp portion according to the external force .

The electric energy harvesting element capable of measuring deformation and tactile sense according to another embodiment includes a third electrode and a fourth electrode which are in contact with the first electrode of the weft portion or in contact with the first electrode of the warp portion, And a second deformation detecting sensor connected to the fourth electrode. In this case, the third electrode and the fourth electrode may be spaced apart from each other at a predetermined distance to contact the first electrode of the weft portion, or may contact the first electrode of the warp portion. The second deformation detecting sensor may sense the deformation of the fabric by measuring a change in resistance value of the first electrode of the weft portion or the first electrode of the warp portion deformed by the external force applied to the fabric.

The electrical energy harvesting element capable of measuring deformation and tactile sense according to another embodiment includes a fifth electrode and a sixth electrode that are in contact with the second electrode of the weft portion or in contact with the second electrode of the warp portion, And a second deformation detecting sensor connected to the sixth electrode. The fifth electrode and the sixth electrode may be spaced apart from each other at a predetermined distance to be in contact with the second electrode of the weft portion or may contact the second electrode of the warp portion. The second deformation detecting sensor may sense the deformation of the fabric by measuring a change in resistance value of the second electrode of the weft portion or the second electrode of the warp portion deformed by the external force applied to the fabric.

According to another aspect of the present invention, there is provided an electrical energy harvesting device capable of measuring deformation and tactile sense, and further includes a storage circuit electrically connected to the first electrode and the second electrode to store the triboelectric energy.

The electrical energy harvesting element capable of deformation measurement and tactile measurement as disclosed herein utilizes a tubular first structure in which a second structure is disposed, such that at least a portion of the inner surface of the first body of the first structure, Electric energy can be generated through the triboelectricity between the second electrodes disposed on the first electrode. That is, the electric energy harvesting device disclosed in this specification can generate electric energy through a simple structure in which the second structure is disposed inside the first structure, thereby simplifying the manufacturing process of the electric energy harvesting device.

In addition, the electric energy harvesting device capable of deformation measurement and tactile measurement disclosed in this specification can be woven through a general fabric weaving process to form a fabric. The woven fabrics can be used as actual clothes, so that the wearability of the body is high and energy can be harvested from the unconscious movement of the wearer.

In addition, the electric energy harvesting device capable of measuring strain and tactile measurement disclosed herein can measure a change in capacitance through the first strain sensor or a change in resistance value through the second strain sensor. In this way, it is possible to perform real-time diagnosis and analysis of the movement of the wearer wearing the electric energy harvesting device capable of measuring the strain measurement and the tactile sense disclosed herein, have.

In addition, the electric energy harvesting device capable of measuring the strain and tactile sense disclosed in the present specification can store the generated electric energy in the storage circuit and utilize it or directly use it in the form of a first deformation detecting sensor, a second deformation detecting sensor, The present invention can be applied to a self-generating type bio-diagnostic garment.

The foregoing provides only a selective concept in a simplified form as to what is described in more detail hereinafter. The present disclosure is not intended to limit the scope of the claims or limit the scope of essential features or essential features of the claims.

FIG. 1 is a conceptual diagram of an electric energy harvesting device capable of measuring deformation and tactile sense according to an embodiment disclosed herein, and is a diagram illustrating a process of generating a triboelectricity.
FIG. 2 is a view for explaining a process of generating an electric energy harvesting element capable of measuring deformation and tactile sense according to an embodiment disclosed herein.
FIG. 3 is a view for explaining a deformation measurement process of an electric energy harvesting device capable of deformation measurement and tactile measurement according to an embodiment disclosed herein.
FIGS. 4 and 5 are views for explaining a conceptual diagram and a deformation measurement process of an electric energy harvesting element capable of deformation measurement and tactile measurement according to another embodiment disclosed herein.
6 is a view showing an example of fabricating an electric energy harvesting element capable of deformation measurement and tactile measurement according to another embodiment disclosed herein.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the drawings. Like reference numerals in the drawings denote like elements, unless the context clearly indicates otherwise. The exemplary embodiments described above in the detailed description, the drawings, and the claims are not intended to be limiting, and other embodiments may be utilized, and other variations are possible without departing from the spirit or scope of the disclosed technology. Those skilled in the art will appreciate that the components of the present disclosure, that is, the components generally described herein and illustrated in the figures, may be arranged, arranged, combined, or arranged in a variety of different configurations, all of which are expressly contemplated, As shown in FIG. In the drawings, the width, length, thickness or shape of an element, etc. may be exaggerated in order to clearly illustrate the various layers (or films), regions and shapes.

When a component is referred to as being " deployed "to another component, it may include the case where the component is directly disposed on the other component, as well as the case where additional components are interposed therebetween.

When one component is referred to as being "connected to another component ", it may include the case where the one component is directly disposed on the other component, and a case where an additional component is interposed therebetween.

When one component is referred to as being "contacted" with another component, it may include not only the one component directly contacting the other component, but also intervening additional components therebetween.

When one component is referred to as "friction on another component ", it may include not only the one component directly rubbing against the other component, but also the case where an additional component is interposed therebetween.

When one element is referred to as " intersecting "with another element, it may include not only the one element directly intersecting with the other element, but also intervening additional elements therebetween.

The description of the disclosed technique is merely an example for structural or functional explanation and the scope of the disclosed technology should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the rights of the disclosed technology should be understood to include equivalents capable of realizing the technical ideas.

It is to be understood that the singular " include " or " have " are to be construed as including the stated feature, number, step, operation, It is to be understood that the combination is intended to specify that it is present and not to preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosed technology belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted to be consistent with meaning in the context of the relevant art and can not be construed as having ideal or overly formal meaning unless expressly defined in the present application.

FIG. 1 is a conceptual diagram of an electric energy harvesting device capable of measuring deformation and tactile sense according to an embodiment disclosed herein, and is a diagram illustrating a process of generating a triboelectricity. FIG. 1 (a) is a conceptual diagram of an electric energy harvesting element capable of measuring deformation and tactile sense, and FIG. 1 (b) is a view for explaining the generation process of triboelectricity. FIG. 2 is a view for explaining a process of generating an electric energy harvesting element capable of measuring deformation and tactile sense according to an embodiment disclosed herein. FIG. 2 (a) shows a conceptual diagram of an electric energy harvesting element capable of measuring deformation and tactile sense, and FIGS. 2 (b) to 2 (d) are a bending view, a stretched And a cross-sectional view of a twisted state. FIG. 3 is a view for explaining a deformation measurement process of an electric energy harvesting device capable of deformation measurement and tactile measurement according to an embodiment disclosed herein.

Referring to the drawings, an electric energy harvesting device 100 capable of deformation measurement and tactile measurement includes a tubular first structure 110 in which a second structure 120 is disposed. In some other embodiments, the electrical energy harvesting element 100, which is capable of strain measurement and tactile measurement, may further optionally include a first strain detection sensor (not shown). In some other embodiments, the electrical energy harvesting element 100, which is capable of strain measurement and tactile measurement, may optionally further comprise a second strain sensor (not shown). In some other embodiments, the electrical energy harvesting element 100, which is capable of strain measurement and tactile measurement, may optionally further include a storage circuit (not shown).

Referring to FIG. 1 (a), an electric energy harvesting device 100 capable of deformation measurement and tactile measurement includes a tubular first structure 110 in which a second structure 120 is disposed.

The first structure 110 includes a first body 112 having a tubular shape and a first electrode 114 disposed on an outer surface of the first body 112.

The first body 112 may be made of a dielectric or an insulator. Also, the first body 112 may be made of a flexible material. Also, the first body 112 may be made of a stretchable material. For example, the first body 112 may be made of a dielectric material having flexibility and stretchability. As a dielectric material having flexibility and stretchability, silicone may be used as an example. Since silicon has flexibility and stretchability, expansion and contraction can be freely performed in response to an external force externally applied, so that it is easily deformed in response to an external force to generate triboelectricity.

As the material of the first electrode 114, various conductive materials can be used. The conductive material may be, for example, a metal, a conductive polymer, or the like. Preferably, the first electrode 114 may be a conductive nanowire, a conductive nanoparticle, a conductive nanotube, or the like having a small change in resistance while being less damaged in a deforming operation. The conductive nanotube may be a silver nanowire, a carbon nanowire, , Silver nano wire, carbon powder, and the like.

 In the drawing, a cylindrical tube having a circular cross section is illustrated as an example of the first structure 110. As an example for the sake of understanding, the first structure 110 may have a polygonal cross-sectional shape, and the shape of the second structure 120 is not limited as long as the second structure 120 can be disposed therein.

The second structure 120 includes a second body 122 disposed inside the first body 112 and a second electrode 124 disposed on an outer surface of the second body 122.

The second body 122 may be made of a dielectric or an insulator. Also, the second body 122 may be made of a flexible material. Also, the second body 122 may be made of a stretchable material. For example, the second body 122 may be made of a dielectric material having flexibility and stretchability. As a dielectric material having flexibility and stretchability, silicone may be used as an example. Since silicon has flexibility and stretchability, expansion and contraction can be freely performed in response to an external force externally applied, so that it is easily deformed in response to an external force to generate triboelectricity.

As the material of the second electrode 124, various conductive materials can be used. The conductive material may be, for example, a metal, a conductive polymer, or the like. Preferably, the second electrode 124 may be a conductive nanowire, a conductive nanoparticle, a conductive nanotube, or the like having a small change in resistance while being less damaged in a deforming operation. The conductive nanotube may be a silver nanowire, a carbon nanowire, , Silver nano wire, carbon powder, and the like.

 In the drawing, a cylindrical pipe having a circular section as a second structure 120 is shown as an example. The above example is for illustrative purposes only, and the second structure 120 may have a polygonal cross-sectional shape or a hollow solid shape. There is no limitation on the shape of the second structure 120 as long as it can be disposed inside the first structure 110.

The electric energy harvesting element 100 disclosed in this specification is constructed such that at least a part of the inner surface of the first body 112 of the first structure 110 and at least a part of the second electrode 124 of the second structure 120 are connected to each other by an external force It is possible to generate electric energy through the triboelectric energy generated when the contact and non-contact are repeated.

The generation process of the triboelectricity will be described with reference to FIG. 1 (b). The triboelectricity is created by the charge transfer created when two materials with different triboelectric polarities come into contact. This allows harvesting electrical energy from mechanical energy. 1B shows an example of a triboelectric energy harvesting device in which a layer is disposed on a lower electrode substrate among a lower electrode substrate and a lower electrode substrate disposed opposite to each other . Fig. 1 (b1) shows a basic state before the two electrode substrates are in contact with each other, and Fig. 2 (b2) shows a state in which the two electrode substrates are in contact with each other due to external force. In this case, positive charge can be induced in the electrode substrate and negative charge can be induced in the layer due to different rubbing polarities between the electrode substrate and the layer. Of course, when the material of the electrode substrate and the material of the layer are different, negative charges may be induced in the electrode substrate, and positive charges may be induced in the layer. For convenience of explanation, the case where positive charges are induced in the electrode substrate and negative charges are induced in the layer will be described. FIG. 1 (b3) shows a state in which the electrode substrate and the layers are separated from each other because the external force is reduced. In this case, the upper electrode substrate has a potential higher than that of the lower electrode substrate, and electric charge is moved, so that current flows from the upper electrode substrate to the lower electrode substrate. When the two substrates are again brought into contact with each other as shown in (b5) of FIG. 1 after the two substrates are separated from each other as shown in (b4) of FIG. 1, electric charge moves in the opposite direction and current flows from the lower electrode substrate to the upper electrode substrate . Through this, the triboelectric energy harvesting element can generate alternating electrical energy from repetitive application of external force.

The electric energy harvesting device 100 capable of measuring strain and tactile sensation disclosed in the present specification can be applied to the first structure 110 by utilizing the first tubular structure 110 in which the second structure 120 is disposed, Electrical energy can be generated through the triboelectricity between at least a portion of the inner surface of the first body 112 of the first structure 120 and the second electrode 124 disposed on the outer surface of the second structure 120. That is, the electric energy harvesting device 100 disclosed in the present specification can generate electrical energy through a simple structure in which the second structure 120 is disposed within the first structure 110, Can be simplified.

A silicon tube is used as the first body 112 and the second body 122 for convenience of explanation and a metal electrode is used as the first electrode 114 and the second electrode 124 and the outer diameter of the second body 122 The electric energy harvesting device 100 disclosed in this specification will be described using the case where the inner diameter of the first body 112 is smaller than the inner diameter of the first body 112. [ In this case, when the inner surface of the first body 112 and the second electrode 124 come into contact with each other due to external force, positive charges are charged in the second electrode 124, Can be charged. It is clear that this description is not intended to limit the scope of rights of the electric energy harvesting element 100 disclosed in this specification.

The development process of the electric energy harvesting device 100 capable of deformation measurement and tactile measurement according to an embodiment disclosed herein will be described with reference to FIG. As shown in the figure, the interior of the first structure 110 in which the second structure 120 is disposed has a predetermined space. Accordingly, the second structure 120 may be bent, stretched or twisted by an external force as shown by way of example in FIGS. 2 (b) to 2 (d) And can move freely within the first structure 110 in the course of being simultaneously processed. In this process, at least a portion of the inner surface of the first body 112 of the first structure 110 and at least a portion of the second electrode 124 of the second structure 120 are in friction contact with each other, , This process can be repeated depending on whether an external force is applied or not. At least a portion of the inner surface of the first body 112 of the first structure 110 and the second electrode 124 of the second structure 120 are connected to each other through the above process, The triboelectric energy may be generated. The generated triboelectric energy is directly utilized as a power source of a first deformation detection sensor (not shown) or a second deformation detection sensor (not shown) described later or stored in a storage circuit (not shown) (Not shown), a control unit mounted on clothes or the like employing the electric energy harvesting device 100 disclosed herein, a wireless sensor network, and the like.

Referring to FIG. 3, an electric energy harvesting device 100 capable of deformation measurement and tactile measurement according to an embodiment disclosed herein through a first deformation sense sensor (not shown) and a second deformation sense sensor (not shown) A description will be given of a process of measuring the deformation of the probe.

The first deformation detection sensor (not shown) may be connected to the first electrode 114 and the second electrode 124. The first deformation detection sensor senses an external force applied to the first structure 110 or the second structure 120 by measuring a change in capacitance between the first electrode 114 and the second electrode 124 can do. The external force can be applied, for example, by a finger. By sensing this, the tactile sense can be detected.

More specifically, the first deformation detection sensor may be a capacitance measurement sensor. The capacitance can be defined by the following equation.

C =? S / d

Where C is the capacitance,? Is the dielectric constant, S is the area, and d is the distance between the electrodes.

The first deformation detecting sensor is provided between the first electrode 114 and the second electrode 124, which is a capacitance between the first electrode 114 and the second electrode 124 before external force is applied, and between the first electrode 114 and the second electrode 124, The first structure 110 or the second structure 120 can be sensed by measuring the capacitance change ΔC 1 from the capacitance C1 + ΔC 1 of the first structure 110 or the second structure 120.

Since the capacitance C is defined by the area of the first electrode 114 and the second electrode 124 facing each other with the distance d between the first electrode 114 and the second electrode 124, The first deformation detecting sensor detects a change in the area of the first electrode 114 and the second electrode 124 which face each other with a distance d between the first electrode 114 and the second electrode 124 according to the external force, So that the external force can be detected.

The second deformation detecting sensor (not shown) measures a change in resistance value of the first electrode 114 or the second electrode 124 according to an external force to detect a deformation of the first structure 110 or the second structure 120 Can be detected.

For example, the second deformation detecting sensor may be electrically connected to a third electrode (not shown) and a fourth electrode (not shown) made of a conductive material. The third electrode and the fourth electrode may be spaced apart from each other by a predetermined distance to be in contact with the first electrode 114. The second deformation detecting sensor may include a first electrode (124) deformed in the process of repeatedly contacting and non-contacting the at least a portion of the inner surface of the first body (112) and the at least a portion of the second electrode 114 may be measured to detect the deformation of the first structure 110.

As another example, the second strain sensor may be electrically connected to a fifth electrode (not shown) and a sixth electrode (not shown) made of a conductive material. The fifth electrode and the sixth electrode may be spaced apart from each other by a predetermined distance to be in contact with the second electrode 124. The second deformation detecting sensor may include a second electrode that is deformed in the course of repeatedly contacting and non-contacting the at least a portion of the inner surface of the first body 112 and the at least a portion of the second electrode 124 by the external force, 124 may be measured to sense the deformation of the second structure 120.

An external force applied to the electric energy harvesting element 100 disclosed in this specification can be sensed through the second deformation detecting sensor. Further, by measuring the resistance value change through the second deformation sensor, it is possible to diagnose whether the first electrode 114 or the second electrode 124 is damaged or short-circuited by repeated use of the electric energy harvesting device 100 It is possible.

More specifically, the second strain sensor may be a strain sensor that measures an external force through an electrical resistance value. Generally, when an external force acts on an object, the object deforms. The degree of deformation is called strain. In other words, strain refers to the ratio of the length of an object stretched or shrunk to the original length when the object is stretched or compressed. The electrical resistance of an object can be defined by the following equation.

R =? L / S

Where R is the electrical resistance, p is the resistivity, L is the length of the object, and S is the cross-sectional area of the object.

As shown in FIG. 3, for example, the second deformation detecting sensor may have an electrical resistance value of the first electrode 114 before the external force is applied to the first electrode 114, The second electrode, and the third electrode. Let R be the electrical resistance of the first electrode 114 measured at this time.

When the first electrode 114 is deformed due to an external force, the electric resistance value of the first electrode 114 due to the deformation of the first electrode 114 due to external force through the third electrode and the fourth electrode is Can be measured. Let the electric resistance value of the first electrode 114 measured at this time be R + DELTA R.

When an external force is applied, the length L and the cross-sectional area S of the first electrode 114 change. Since the volume of the first electrode 114 is kept constant, the cross-sectional area of the first electrode 114 is reduced when the length of the first electrode 114 is increased by the external force. When the length of the first electrode 114 is decreased, The cross-sectional area of the first electrode 114 is increased. As the length of the first electrode 114 is increased by the external force from the above-mentioned formula for the electric resistance value, the cross-sectional area is reduced, so that the electric resistance value of the first electrode 114 increases. In addition, it can be seen that the electric resistance value of the first electrode 114 is reduced because the cross-sectional area is increased when the length of the first electrode 114 is reduced by the external force from the above-mentioned formula for the electric resistance value. The second deformation detection sensor can measure the change of the length and the cross-sectional area of the first electrode 114 according to the external force by measuring the change of the electrical resistance value of the first electrode 114 according to the external force, can do.

Similarly, the second deformation detecting sensor may be configured such that the electrical resistance value of the second electrode 124 before the external force is applied to the fifth electrode, which is electrically contacted to the second electrode 124 at a predetermined interval, 6 electrodes. When the second electrode 124 is deformed by an external force, the electrical resistance value of the second electrode 124 due to the deformation of the second electrode 124 due to the external force through the fifth electrode and the sixth electrode is Can be measured. The second deformation detecting sensor can measure the change of the length and the cross-sectional area of the second electrode 124 according to the external force by measuring the change of the electrical resistance value of the second electrode 124 according to the external force, can do.

Meanwhile, when an external force is applied to the electric energy harvesting device 100, the first deformation detecting sensor and the second deformation detecting sensor may simultaneously operate to simultaneously measure a change in capacitance and a change in resistance value. The external force applied to the electric energy harvesting device 100 can be more accurately measured.

The storage circuit (not shown) is electrically connected to the first electrode 114 and the second electrode 124 so that at least a part of the inner surface of the first body 112 and at least a part of the second electrode 124 are electrically connected It is possible to store the triboelectric energy generated by repeating contact and non-contact with each other. The storage circuit may be coupled to the first electrode 114 and the second electrode 124 to receive a current generated by at least a portion of the inner surface of the first body 112 and at least a portion of the second electrode 124 And at least one charger (not shown) for storing the current output from the diode. The diode rectifies and provides to the charger triboelectric energy, which is an alternating electrical signal generated by at least a portion of the inner surface of the first body 112 and at least a portion of the second electrode 124, It can store electrical energy from the signal.

Meanwhile, the electric energy harvesting device 100 capable of measuring the strain and tactile sense disclosed in the present specification can store the generated electric energy in the storage circuit, (Not shown) that can be attached to a garment including a second deformation detecting sensor or the like, and thus can be applied to a self-generating type bio-diagnostic garment.

On the other hand, in the electronic devices such as the first deformation detection sensor, the second deformation detection sensor, the control unit mounted on the clothes or the like employing the electric energy harvesting device 100 disclosed in this specification, the wireless sensor network, etc., The storage circuit or the charger may be omitted.

FIGS. 4 and 5 are views for explaining a conceptual diagram and a deformation measurement process of an electric energy harvesting element capable of deformation measurement and tactile measurement according to another embodiment disclosed herein. FIGS. 4 (a) to 4 (c) are diagrams each showing a fabric woven with an electric energy harvesting element, the shape of the crossing point between the weft portion and the warp portion before deformation due to external force, FIG. 5 (a) to 5 (c) are cross-sectional views illustrating an electric energy harvesting element coated with an insulating layer 116 and an electric energy harvesting element not coated with an insulating layer 116, respectively, as weft yarns and warp yarns, FIG. 5 is a view showing a cross-sectional view of a weft portion and a warp portion before deformation according to an external force, and a cross-sectional view of a weft portion and a warp portion after deformation according to an external force. 6 is a view showing an example of fabricating an electric energy harvesting element capable of deformation measurement and tactile measurement according to another embodiment disclosed herein.

Referring to FIG. 1, an electric energy harvesting device 100a capable of measuring deformation and tactile sensation includes a fabric 130 formed by weaving a plurality of first structures 110 in a tubular shape in which a second structure 120 is disposed, . In some other embodiments, the electrical energy harvesting element 100a, which is capable of strain measurement and tactile measurement, may optionally further comprise a first strain detection sensor (not shown). In some other embodiments, the electrical energy harvesting element 100a, which is capable of strain measurement and tactile measurement, may optionally further comprise a second strain sensor (not shown). In some other embodiments, the electrical energy harvesting element 100a, which is capable of strain measurement and tactile measurement, may further comprise an insulating layer 116 optionally. In some other embodiments, the electrical energy harvesting element 100a, which is capable of strain measurement and tactile measurement, may optionally further comprise a storage circuit (not shown).

Hereinafter, an electric energy harvesting device 100a capable of measuring deformation and tactile sense will be described with reference to FIGS. 4 to 6. FIG. Hereinafter, substantially the same contents as those described above with reference to Figs. 1 to 3 will be described for convenience of explanation. It is clear that this description is not intended to limit the scope of rights of the electric energy harvesting element 100a capable of deformation measurement and tactile measurement as disclosed in this specification.

Referring to FIG. 1, an electric energy harvesting device 100a capable of measuring deformation and tactile sensation includes a fabric 130 formed by weaving a plurality of first structures 110 in a tubular shape in which a second structure 120 is disposed, .

The first structure 110 includes a first body 112 having a tubular shape and a first electrode 114 disposed on an outer surface of the first body 112.

The second structure 120 includes a second body 122 disposed inside the first body 112 and a second electrode 124 disposed on an outer surface of the second body 122.

At least a portion of the inner surface of the first body 112 and at least a portion of the second electrode 124 are repeatedly brought into contact and non-contact with each other by an external force applied to the fabric 130 to generate triboelectric energy.

The fabric 130 is a part of the plurality of first structures 110 and a part of the plurality of first structures 110 is referred to as a warp portion 110a and a remaining portion of the plurality of first structures 110 is hereinafter referred to as a warp portion 110b - < / RTI >

The electrical energy harvesting element 100a capable of deformation measurement and tactile measurement of the shape of the fabric 130 disclosed herein may be woven through a general fabric weaving process to form the fabric 130. [ The woven fabric 130 can be used as an actual garment to harvest electrical energy from triboelectric energy that is high in wearability of the body and generated from the unconscious movement of the wearer.

4, an electric energy harvesting element 100a capable of deformation measurement and tactile measurement can be manufactured by using the first electrode 114 and the second electrode 124 of the weft portion 110a, (Not shown) connected to the first electrode 114 and the second electrode 124 of the warp portion 110b or connected to the first electrode 114 and the second electrode 124, respectively. The first deformation detecting sensor may detect a change ΔΔ C1 of capacitance between the first electrode 114 and the second electrode 124 of the weft portion 110a according to the external force or a change ΔC1 of capacitance between the first electrode 114 and the second electrode 124 of the warp portion 110b 114 by measuring the change in capacitance (DELTA C1) between the first electrode (114) and the second electrode (124). The first deformation detecting sensor is connected to the first electrode 114 and the second electrode 124 of the weft portion 110a to sense an external force. Alternatively, the first deformation detecting sensor may be connected to the first electrode 114 and the second electrode 124 of the warp portion 110b to sense an external force. The method of detecting the external force through the change of the capacitance DELTA C1 between the first electrode 114 and the second electrode 124 can be sufficiently inferred from the above description with reference to Figs. 1 to 3, It will be omitted for convenience of explanation.

On the other hand, as described above, the electric energy harvesting element 100a in the form of the fabric 130 is formed by weaving a plurality of electric energy harvesting elements 100 capable of deformation measurement. At this time, the weft yarn 110a forming the fabric 130 and the first electrode 114 and the second electrode 124 of the warp portion 110b may be connected to the first deformation detection sensor, respectively. In this case, an external force may be applied to a specific region of the fabric 130 (e.g., the intersection of the weft portion 110a and the warp portion 110b). At least some of the electrical energy harvesting elements 100 constituting the weft yarn 110a and at least some of the electrical energy harvesting elements 100 constituting the warp yarn 110b are connected to each other by the external force of the fabric 130 Or a portion adjacent to the specific region. The capacitance between the first electrode 114 and the second electrode 124 of the electric energy harvesting element 100 constituting the weft yarn 110a via the specific region of the fabric 130 or the portion adjacent to the specific region . The first electrode 114 and the second electrode 124 of the electric energy harvesting element 100 constituting the warp portion 110b via the specific region of the fabric 130 or a portion adjacent to the specific region The capacitance is changed. The electric energy harvesting element 100 constituting the weft yarn portion 110a and the electric energy harvesting element 100 constituting the warp portion 110b constituting the weft yarn portion 110a varying in capacitance with the application of the external force are analyzed, It is possible to distinguish the specific area of the fabric 130 to which it is applied. Accordingly, the electric energy harvesting element 100a disclosed in this specification can measure the change in capacitance through the first deformation detecting sensor to wear the electric energy harvesting element 100a capable of deformation measurement and tactile measurement disclosed herein It enables real-time diagnosis and analysis of the movement of one wearer by the body part, and can be used for diagnosing the movement of the patient in the medical diagnosis and the like.

4, an electric energy harvesting element 100a capable of deformation measurement and tactile measurement can be provided on the second electrode 124 of the weft portion 110a and the second electrode 124a of the warp portion 110b, And a first deformation detection sensor (not shown) connected to the second electrode 124. The first deformation detecting sensor measures the change ΔC 2 of the capacitance between the second electrode 124 of the weft portion 110 a and the second electrode 124 of the warp portion 110 b according to the external force, 130 to detect the external force.

More specifically, the electric energy harvesting element 100a of the fabric 130 formed by weaving the electric energy harvesting element 100 capable of measuring deformation and tactile sense has a weft portion 110a and a warp portion 110b, Intersect at a plurality of intersections. The first deformation detecting sensor is connected to the second electrode 124 of the weft portion 110a and the second electrode 124 of the warp portion 110b so that the weft portion 110a and the warp portion 110b cross each other The capacitance at the intersection can be measured.

When an external force is applied to the intersection of the weft portion 110a and the warp portion 110b, the distance between the weft portion 110a and the warp portion 110b is changed. The distance between the second electrode 124 of the weft portion 110a and the second electrode 124 of the warp portion 110b is changed so that the distance between the second electrode 124 of the weft portion 110a and the warp portion 110b ) Changes from C2 to C2 + DELTA C2. The first deformation detecting sensor measures the change ΔC 2 of the capacitance between the second electrode 124 of the weft portion 110a and the second electrode 124 of the warp portion 110b by the external force, 130 to detect the external force.

On the other hand, as described above, the electric energy harvesting element 100a in the form of the fabric 130 is formed by weaving a plurality of electric energy harvesting elements 100 capable of deformation measurement. At this time, the second electrode 124 of the weft portion 110a forming the fabric 130 and the second electrode 124 of the warp portion 110b may be connected to the first deformation detection sensor, respectively. In this case, an external force may be applied to a specific region of the fabric 130 (e.g., the intersection of the weft portion 110a and the warp portion 110b). At least some of the electrical energy harvesting elements 100 constituting the weft yarn 110a and at least some of the electrical energy harvesting elements 100 constituting the warp yarn 110b are connected to each other by the external force of the fabric 130 Or a portion adjacent to the specific region. The second electrode 124 of the electric energy harvesting element 100 constituting the weft yarn 110a passing through the specific region of the fabric 130 or the portion adjacent to the specific region and the electric power constituting the warp portion 110b The capacitance between the second electrodes 124 of the energy harvesting element 100 is changed. The second electrode 124 of the electric energy harvesting element 100 and the second electrode 124 of the electric energy harvesting element 100 constituting the warp portion 110b constituting the weft portion 110a whose capacitance varies according to the application of the external force By locating and analyzing the position of the electrode 124, it is possible to identify the specific area of the fabric 130 to which an external force is applied. Accordingly, the electric energy harvesting element 100a disclosed in this specification can measure the change in capacitance through the first deformation detecting sensor to wear the electric energy harvesting element 100a capable of deformation measurement and tactile measurement disclosed herein It enables real-time diagnosis and analysis of the movement of one wearer by the body part, and can be used for diagnosing the movement of the patient in the medical diagnosis and the like.

The insulating layer 116 may be disposed on at least one surface selected from the first electrode 114 of the weft portion 110a, the first electrode 114 of the warp portion 110b, and combinations thereof. The insulating layer 116 is formed on the first electrode 114 of the weft portion 110a and the first electrode 114 of the warp portion 110b in the process of weaving the weft 130 crossing the weft portion 110a and the warp portion 110b. It is possible to prevent the electrodes 114 from contacting each other directly. In Fig. 5, an insulating layer 116 disposed on the surface of the first electrode 114 of the weft portion 110a is shown as an example. Alternatively, the insulating layer 116 may be disposed on the surface of the first electrode 114 of the warp portion 110b or on the surface of the first electrode 114 of the weft portion 110a, And the surface of the first electrode 114 of the warp portion 110b.

5, an electric energy harvesting element 100a capable of deformation measurement and tactile measurement can be provided on the first electrode 114 and the warp portion 110b of the weft portion 110a, And a first deformation detection sensor (not shown) connected to the first electrode 114. The first deformation detecting sensor is a sensor for detecting a change in capacitance of the first electrode 114 of the weft portion 110a and a change ΔS of the contact area between the first electrode 114 of the warp portion 110b and the first electrode 114 of the warp portion 110b, The external force applied to the fabric 130 can be sensed by measuring the change DELTA C3.

More specifically, the electric energy harvesting element 100a of the fabric 130 formed by weaving the electric energy harvesting element 100 capable of measuring deformation and tactile sense has a weft portion 110a and a warp portion 110b, Intersect at a plurality of intersections. The first deformation detecting sensor is connected to the first electrode 114 of the weft portion 110a and the first electrode 114 of the warp portion 110b so that the weft portion 110a and the warp portion 110b cross each other The capacitance at the intersection can be measured.

When an external force is applied to the intersection of the weft portion 110a and the warp portion 110b, the contact area between the weft portion 110a and the warp portion 110b changes. The contact area between the first electrode 114 of the weft portion 110a and the first electrode 114 of the warp portion 110b is changed so that the first electrode 114 of the weft portion 110a and the warp portion 110b varies from C3 to C3 + DELTA C3. The first deformation detecting sensor measures the change ΔC3 of the capacitance between the first electrode 124 of the weft portion 110a and the first electrode 124 of the warp portion 110b by the external force, 130 to detect the external force.

On the other hand, as described above, the electric energy harvesting element 100a in the form of the fabric 130 is formed by weaving a plurality of electric energy harvesting elements 100 capable of deformation measurement. At this time, the first electrode 114 of the weft yarn 110a forming the fabric 130 and the first electrode 114 of the warp portion 110b may be connected to the first deformation detecting sensor, respectively. In this case, an external force may be applied to a specific region of the fabric 130 (e.g., the intersection of the weft portion 110a and the warp portion 110b). At least some of the electrical energy harvesting elements 100 constituting the weft yarn 110a and at least some of the electrical energy harvesting elements 100 constituting the warp yarn 110b are connected to each other by the external force of the fabric 130 Or a portion adjacent to the specific region. The first electrode 114 of the electric energy harvesting element 100 constituting the weft yarn portion 110a passing through the specific region of the fabric 130 or a portion adjacent to the specific region and the first electrode 114 constituting the warp portion 110b The capacitance between the first electrodes 114 of the energy harvesting element 100 is changed. Of the electric energy harvesting element 100 constituting the warp portion 110b and the first electrode 114 of the electric energy harvesting element 100 constituting the weft portion 110a whose capacitance varies according to the application of the external force, By locating and analyzing the position of the electrode 114, it is possible to identify the specific area of the fabric 130 to which an external force is applied. Accordingly, the electric energy harvesting element 100a disclosed in this specification can measure the change in capacitance through the first deformation detecting sensor to wear the electric energy harvesting element 100a capable of deformation measurement and tactile measurement disclosed herein It enables real-time diagnosis and analysis of the movement of one wearer by the body part, and can be used for diagnosing the movement of the patient in the medical diagnosis and the like.

The second deformation detecting sensor (not shown) measures a change in resistance value of the first electrode 114 or the second electrode 124 of the weft portion 110a according to the external force, 110 or the deformation of the second structure 120 by detecting the deformation of the fabric 130. Alternatively, the second deformation detecting sensor (not shown) measures the change in resistance value of the first electrode 114 or the second electrode 124 of the warp portion 110b according to the external force, The deformation of the fabric 130 can be detected by detecting deformation of the first structure 110 or the second structure 120.

For example, the second deformation detecting sensor may be electrically connected to a third electrode (not shown) and a fourth electrode (not shown) made of a conductive material. The third electrode and the fourth electrode may be spaced apart from each other at a predetermined distance to be in contact with the first electrode 114 of the weft portion 110a. Alternatively, the third electrode and the fourth electrode may be spaced apart from each other by a predetermined distance to contact the first electrode 114 of the warp portion 110b.

The at least a portion of the inner surface of the first body 112 of the weft yarn portion 110a and the at least a portion of the second electrode 124 of the weft yarn portion 110a can be repeatedly contacted and noncontact with each other by an external force. The at least a portion of the inner surface of the first body 112 of the warp portion 110b and the at least a portion of the second electrode 124 of the warp portion 110b may be repeatedly contacted and noncontact with each other by an external force . In this process, the electric energy harvesting element 100a in the form of the fabric 130 can generate electric energy, and the weft portion 110a and the warp portion 110b can be deformed by external force.

The second strain sensor measures a change in resistance value of the first electrode 114 of the weft yarn 110a or the first electrode 114 of the warp yarn 110b that is deformed by the external force applied to the fabric The deformation of the fabric 130 can be detected.

As another example, the second strain sensor may be electrically connected to a fifth electrode (not shown) and a sixth electrode (not shown) made of a conductive material. The fifth electrode and the sixth electrode may be spaced apart from each other by a predetermined distance to be in contact with the second electrode 124 of the weft portion 110a. Alternatively, the fifth electrode and the sixth electrode may be spaced apart from each other by a predetermined distance to be in contact with the second electrode 124 of the warp portion 110b.

The at least a portion of the inner surface of the first body 112 of the weft yarn portion 110a and the at least a portion of the second electrode 124 of the weft yarn portion 110a can be repeatedly contacted and noncontact with each other by an external force. The at least a portion of the inner surface of the first body 112 of the warp portion 110b and the at least a portion of the second electrode 124 of the warp portion 110b may be repeatedly contacted and noncontact with each other by an external force . In this process, the electric energy harvesting element 100a in the form of the fabric 130 can generate electric energy, and the weft portion 110a and the warp portion 110b can be deformed by external force.

The second strain sensor measures a change in resistance value of the second electrode 124 of the weft yarn 110a or the second electrode 124 of the warp yarn 110b that is deformed by the external force applied to the fabric The deformation of the fabric 130 can be detected.

The process of measuring the external force from the change of the resistance value according to the external force can be sufficiently inferred from the above description in the detailed description related to FIG. 1 to FIG. 3, so that the detailed description thereof will be omitted for the convenience of explanation.

On the other hand, as described above, the electric energy harvesting element 100a in the form of the fabric 130 is formed by weaving a plurality of electric energy harvesting elements 100 capable of deformation measurement. At this time, the weft yarn 110a forming the fabric 130 and the first electrode 114 and the second electrode 124 of the warp portion 110b may be connected to the second deformation detection sensor, respectively. In this case, an external force may be applied to a specific region of the fabric 130 (e.g., the intersection of the weft portion 110a and the warp portion 110b). At least some of the electrical energy harvesting elements 100 constituting the weft yarn 110a and at least some of the electrical energy harvesting elements 100 constituting the warp yarn 110b are connected to each other by the external force of the fabric 130 Or a portion adjacent to the specific region. The resistance value of the first electrode 114 or the second electrode 124 of the electric energy harvesting element 100 constituting the weft yarn 110a passing through the specific region of the fabric 130 or a portion adjacent to the specific region Is changed by an external force. The resistance of the first electrode 114 and the second electrode 124 of the electrical energy harvesting element 100 constituting the warp portion 110b via the specific region of the fabric 130 or a portion adjacent to the specific region of the fabric 130 The value is changed by external force. The electric energy harvesting element 100 and the electric energy harvesting element 100 constituting the warp portion 110b constituting the weft portion 110a whose resistance value changes according to the application of the external force are found and the intersection points of these elements are analyzed The specific area of the fabric 130 to which an external force is applied can be discriminated. Accordingly, the electric energy harvesting element 100a disclosed in this specification can measure the change of the resistance value through the second deformation detecting sensor, thereby obtaining the electric energy harvesting element 100a capable of deformation measurement and tactile measurement, It is possible to use real-time diagnosis and analysis of the wearer's movements according to the body part, and thus it can be used for diagnosing the motion of the patient in the medical diagnosis and the like.

Meanwhile, when an external force is applied to the electric energy harvesting device 100a, the first deformation detecting sensor and the second deformation detecting sensor may simultaneously operate to measure the change of the capacitance and the change of the resistance value, respectively. The external force applied to the electric energy harvesting element 100a can be more accurately measured.

The storage circuit (not shown) is electrically connected to the first electrode 114 and the second electrode 124 so that at least a part of the inner surface of the first body 112 and at least a part of the second electrode 124 are electrically connected It is possible to store the triboelectric energy generated by repeating contact and non-contact with each other. The storage circuit is connected to the first electrode 114 and the second electrode 124 of the weft portion 110a and the first electrode 114 and the second electrode 124 of the warp portion 110b to form a weft portion 110a At least one diode (not shown) for receiving a current generated by at least a portion of the inner surface of the first body 112 of each of the warp portions 110a and 110b and at least a portion of the second electrode 124, And at least one charger (not shown) for storing the output current. The diode rectifies the triboelectric energy, which is an alternating electrical signal generated by at least a portion of the inner surface of the first body 112 of each of the weft portion 110a and the warp portion 110b and at least a portion of the second electrode 124 To the charger, which can store electrical energy from the rectified AC electrical signal.

Meanwhile, the electric energy harvesting device 100a capable of measuring the strain measurement and the tactile sense disclosed in the present specification stores the generated electric energy in the storage circuit, (Not shown) that can be attached to a garment including a second deformation detecting sensor or the like, and thus can be applied to a self-generating type bio-diagnostic garment.

On the other hand, in the electronic devices such as the first deformation detection sensor, the second deformation detection sensor, the control unit mounted on the clothes or the like employing the electric energy harvesting element 100a disclosed in this specification, the wireless sensor network, etc., The storage circuit or the charger may be omitted.

4 to 6, an electric energy harvesting device 100 capable of measuring deformation and tactile sense is divided into a weft portion 110a and a warp portion 110b, The energy harvesting element 100a is represented as an example. Alternatively, unlike the drawing, the electric energy harvesting element 100a may be made by mixing a general fiber and an electric energy harvesting element 100 capable of deformation measurement and tactile measurement.

From the foregoing it will be appreciated that various embodiments of the present disclosure have been described for purposes of illustration and that there are many possible variations without departing from the scope and spirit of this disclosure. And that the various embodiments disclosed are not to be construed as limiting the scope of the disclosed subject matter, but true ideas and scope will be set forth in the following claims.

100, 100a: electric energy harvesting element
110: First structure
110a:
110b: warp portion
112: first body
114: first electrode
116: insulating layer
120: second structure
122: second body
124: second electrode
130: Fabric

Claims (13)

And a first tubular structure in which a second structure is disposed,
The first structure
A tubular first body; And
And a first electrode disposed on an outer surface of the first body,
The second structure
A second body disposed within the first body; And
And a second electrode disposed on the outer surface of the second body,
Wherein at least a portion of the inner surface of the first body and at least a portion of the second electrode are subjected to deformation measurement and tactile measurement capable of generating triboelectric energy by repeatedly contacting and non-contacting each other due to external force. The method according to claim 1,
And a first deformation detection sensor connected to the first electrode and the second electrode,
Wherein the first deformation detection sensor measures a change in capacitance between the first electrode and the second electrode to detect an external force applied to the first structure or the second structure, Harvesting element. 3. The method according to claim 1 or 2,
A third electrode and a fourth electrode in contact with the first electrode; And
And a second deformation detection sensor connected to the third electrode and the fourth electrode,
Wherein the third electrode and the fourth electrode are spaced apart from each other at a predetermined interval to be in contact with the first electrode,
Wherein the second deformation detecting sensor detects a change in resistance value of the first electrode which is deformed in the course of repeating contact and non-contact between the at least a part of the inner surface of the first body and the at least a part of the second electrode, To measure deformation of the first structure and to measure the tactile sense. 3. The method according to claim 1 or 2,
A fifth electrode and a sixth electrode in contact with the second electrode; And
And a second deformation detection sensor connected to the fifth electrode and the sixth electrode,
Wherein the fifth electrode and the sixth electrode are spaced apart from each other by a predetermined distance to be in contact with the second electrode,
Wherein the second deformation detecting sensor measures a change in resistance value of the second electrode deformed in the course of repeatedly contacting and non-contacting the at least a part of the inner surface of the first body and the at least a part of the second electrode, An electric energy harvesting device capable of deformation measurement and tactile measurement capable of detecting deformation of a second structure. 3. The method according to claim 1 or 2,
Further comprising a storage circuit electrically connected to the first electrode and the second electrode to store the triboelectric energy. And a fabric formed by weaving a plurality of tubular first structures having a second structure disposed therein,
The first structure
A tubular first body; And
And a first electrode disposed on an outer surface of the first body,
The second structure
A second body disposed within the first body; And
And a second electrode disposed on the outer surface of the second body,
Wherein at least a portion of the inner surface of the first body and at least a portion of the second electrode are repeatedly brought into contact and non-contact with each other by an external force applied to the fabric to generate triboelectric energy,
The fabric is formed by cross-weaving a part of the plurality of first structures (hereinafter referred to as a "weft yarn portion") and the remaining portions of the plurality of first structures Harvesting element. The method according to claim 6,
And a first deformation detecting sensor connected to the first electrode and the second electrode of the weft portion or connected to the first electrode and the second electrode of the warp portion,
The first deformation detecting sensor is applied to the fabric by measuring a change in capacitance between the first electrode and the second electrode of the weft portion according to the external force or a change in capacitance between the first electrode and the second electrode of the warp portion An electric energy harvesting device capable of measuring deformation and tactile sense to sense the external force. The method according to claim 6,
And a first deformation detecting sensor connected to a second electrode of the weft portion and a second electrode of the warp portion,
Wherein the first deformation detecting sensor measures a change in capacitance between the second electrode of the weft portion and the second electrode of the warp portion according to the external force, thereby detecting deformation and tactile measurement of the external force applied to the fabric, Energy harvesting device. The method according to claim 6,
Further comprising an insulating layer disposed on at least one surface of the first electrode of the weft portion, the first electrode of the warp portion, and a combination thereof,
Wherein the insulating layer is formed of an insulating material such that the first electrode of the weft portion and the first electrode of the warp portion are prevented from coming into direct contact with each other in the process of weaving the weft yarn crossing the weft portion and the warp portion, Harvesting element. 10. The method of claim 9,
And a first deformation detection sensor connected to the first electrode of the weft portion and the first electrode of the warp portion,
Wherein the first deformation detecting sensor measures a change in capacitance due to a change in a contact area between the first electrode of the weft portion and the first electrode of the warp portion according to the external force, And an electric energy harvesting device capable of tactile measurement. 11. The method according to any one of claims 6 to 10,
A third electrode and a fourth electrode contacting the first electrode of the weft portion or contacting the first electrode of the warp portion; And
And a second deformation detection sensor connected to the third electrode and the fourth electrode,
Wherein the third electrode and the fourth electrode are spaced apart from each other at a predetermined distance to be in contact with the first electrode of the weft portion or in contact with the first electrode of the warp portion,
Wherein the second deformation detection sensor measures deformation of the fabric by measuring a resistance change of the first electrode of the weft portion or the first electrode of the warp portion deformed by the external force applied to the fabric, A possible electric energy harvesting device. 11. The method according to any one of claims 6 to 10,
A fifth electrode and a sixth electrode in contact with the second electrode of the weft portion or in contact with the second electrode of the warp portion; And
And a second deformation detection sensor connected to the fifth electrode and the sixth electrode,
Wherein the fifth electrode and the sixth electrode are spaced apart from each other by a predetermined distance to contact the second electrode of the weft portion or contact the second electrode of the warp portion,
The second deformation detecting sensor measures deformation of the fabric by measuring a change in resistance value of the second electrode of the weft portion or the second electrode of the warp portion deformed by the external force applied to the fabric, A possible electric energy harvesting device. 11. The method according to any one of claims 6 to 10,
Further comprising a storage circuit electrically connected to the first electrode and the second electrode to store the triboelectric energy.

Images