KR101528105B1 - REWOD Generating Apparatus - Google Patents

REWOD Generating Apparatus Download PDF

Info

Publication number
KR101528105B1
KR101528105B1 KR1020140092313A KR20140092313A KR101528105B1 KR 101528105 B1 KR101528105 B1 KR 101528105B1 KR 1020140092313 A KR1020140092313 A KR 1020140092313A KR 20140092313 A KR20140092313 A KR 20140092313A KR 101528105 B1 KR101528105 B1 KR 101528105B1
Authority
KR
South Korea
Prior art keywords
electrode substrate
vibration
rewod
energy
conductive fluid
Prior art date
Application number
KR1020140092313A
Other languages
Korean (ko)
Inventor
김영범
양휘철
Original Assignee
한양대학교 산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한양대학교 산학협력단 filed Critical 한양대학교 산학협력단
Priority to KR1020140092313A priority Critical patent/KR101528105B1/en
Application granted granted Critical
Publication of KR101528105B1 publication Critical patent/KR101528105B1/en
Priority to PCT/KR2015/007558 priority patent/WO2016013849A1/en

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N3/00Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom

Abstract

REWOD generator. The REWOD power generation apparatus includes a first electrode substrate, a second electrode substrate, and a conductive fluid array including conductive fluids positioned between the first electrode substrate and the second electrode substrate, Or the second electrode substrate while vibrating the first electrode substrate or the second electrode substrate while collecting energy by using a change in the contact area between the electrode portions of the first electrode substrate or the second electrode substrate and the conductive fluid, And a vibration-rotation converting unit connected to the second electrode substrate and transmitting an external physical force to the first electrode substrate or the second electrode substrate, and converting rotational energy into vibration energy and transmitting the vibration energy. Therefore, it is possible to provide a REWOD generator capable of applying more flexibly in an extreme vibration and rotation environment, and being used in an auxiliary power device or the like to contribute to power supply and demand.

Description

[0001] REWOD GENERATING APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a REWOD power generation apparatus, and more particularly, to a REWOD power generation apparatus using a vibration-rotation conversion apparatus.

There is a growing interest in regenerative energy-based power generation systems that regenerate energy that is thrown away from life or the environment. Among them, power generation methods using vibration are attracting attention.

Conventionally, the power generation method using vibration has piezoelectric element power generation using vibration-pressure conversion, but it has difficulties in its effectiveness and safety due to problems of low power generation and harmful substances forming devices, and strictly speaking, vibration energy itself is not used It is pointed out as a disadvantage that it is difficult to apply to a minute vibration environment where conversion to pressure is difficult.

Therefore, a new generation method using a new electrowetting on dielectric (REWOD) technology, which is not a conventional piezoelectric device, has emerged. This is a new generation method using a microfluidic flow, And utilizes the effect of the capacitance change due to the shape change of the fluid.

As a power generation method using the REWOD technique, a method using an in-pipe flow and a method using an up / down vibration have been studied. For example, Korean Patent Registration No. 10-1358291 (Apr. 21, 2014) discloses an apparatus for converting energy using a change in fluid volume.

On the other hand, in some cases, in the case of a very large vibration or a high-speed rotation environment, if energy is directly used, there may be problems such as efficiency reduction or destruction.

Therefore, it is necessary to develop a power generation device capable of energy collection even in an extreme environment, such as a very large vibration environment, without device breakage.

SUMMARY OF THE INVENTION The present invention provides a REWOD generator capable of collecting energy in an extreme vibration and rotation environment.

According to an aspect of the present invention, there is provided a REWOD generator. The REWOD power generation apparatus includes a first electrode substrate, a second electrode substrate, and a conductive fluid array including conductive fluids positioned between the first electrode substrate and the second electrode substrate, Or a REWOD power generator for collecting energy using a change in a contact area between the electrode portion of the first electrode substrate or the second electrode substrate and the conductive fluid while the second electrode substrate vibrates; And a vibration-rotation converting unit connected to the first electrode substrate or the second electrode substrate of the REWOD power generating unit to transmit an external physical force to the first electrode substrate or the second electrode substrate, .

The vibration-rotation converting unit may further include an energy decay unit for converting rotational energy into vibrational energy and then attenuating the converted energy.

The vibration-rotation converting unit may include a slide-crank structure.

The vibration-rotation converting unit includes: a rotating member rotated by an external physical force; A connecting member whose one end is connected to the rotating portion; An elastic member connected to the other end of the connecting member and vibrated by the connecting member; An energy damping member connected to the elastic member for damping vibration energy transmitted from the elastic member; And a vibration transmitting member connected to the energy damping member and transmitting the attenuated vibration energy to the first electrode substrate or the second electrode substrate of the REWOD power generating unit.

The REWOD power generator includes a first electrode substrate including a plurality of grooves located on an upper surface thereof; A first dielectric thin film formed on the first electrode substrate; A first hydrophobic thin film formed on the first dielectric thin film; A conductive fluid array comprising conductive fluids disposed on a first electrode substrate on top of which a first dielectric thin film and a first hydrophobic thin film are formed, corresponding to locations of the grooves; And a second electrode substrate provided on the conductive fluid array so as to be oscillatable and having a second dielectric thin film on a lower surface and a second hydrophobic thin film disposed on a lower portion of the second dielectric thin film.

And the grooves prevent the displacement of the conductive fluid.

The conductive fluid is a liquid metal ground Stan, NaCl, LiCl, NaNo 3, Na 2 SiO 3, AlCl 3 -NaCl, LiCl-KCl, KCL, Na, NaOH, H 2 SO 4, CH 3 COOH, HF, CuSO 4, Ethylene glycol, propylene glycol, and AgCl.

And a partition wall for supporting the first electrode substrate and the second electrode substrate.

The first hydrophobic thin film or the second hydrophobic thin film may include a fluoropolymer-based material or an ultra-water-repellent nanostructure.

According to another aspect of the present invention, there is provided a REWOD generator. The REWOD power generation apparatus includes a first electrode substrate, a second electrode substrate, and a conductive fluid array including conductive fluids positioned between the first electrode substrate and the second electrode substrate, A REWOD power generator for collecting energy using a change in contact area between the electrode portion of the first electrode substrate or the second electrode substrate and the conductive fluid while rotating the substrate or the second electrode substrate; And a vibration-rotation converting unit connected to the first electrode substrate or the second electrode substrate of the REWOD generating unit to transmit an external physical force to the first electrode substrate or the second electrode substrate, .

The vibration-rotation converting unit may include a slide-crank structure.

Wherein the vibration-rotation converting unit includes: a vibration member vibrating by an external physical force; An energy damping member connected to the vibration member and damping vibration energy transmitted from the vibration member; An elastic member connected to the energy damping member and vibrating by receiving the damped vibration energy; A connecting member having one end connected to the elastic member; And a rotation transmitting member connected to the other end of the connecting member and rotated by the connecting member to transmit rotational energy to the first electrode substrate or the second electrode substrate of the REWOD power generating unit.

The REWOD power generator includes a first electrode substrate including a plurality of grooves located on an upper surface thereof; A first dielectric thin film formed on the first electrode substrate; A conductive fluid array comprising conductive fluids disposed on a first electrode substrate on which a first dielectric film is formed, corresponding to locations of the grooves; And a second electrode substrate rotatably mounted on the first electrode substrate on which the conductive fluid array is disposed and having a second dielectric thin film formed on the lower surface thereof, Can be combined.

The grooves may be in the form of a dot or a channel.

Characterized in that the grooves are radially spaced apart from each other.

And the grooves prevent the displacement of the conductive fluid.

The conductive fluid may be in the form of a droplet or a channel.

The conductive fluid is a liquid metal ground Stan, NaCl, LiCl, NaNo 3, Na 2 SiO 3, AlCl 3 -NaCl, LiCl-KCl, KCL, Na, NaOH, H 2 SO 4, CH 3 COOH, HF, CuSO 4, Ethylene glycol, propylene glycol, and AgCl.

And the second electrode substrate is in the form of a branch.

The second electrode substrate may include a branched electrode region and a nonconductive region other than the electrode region.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a REWOD generator capable of applying more flexibly in an extreme vibration and rotation environment, and being used in an auxiliary power device or the like to contribute to power supply and demand.

Further, it is possible to provide a REWOD power generation apparatus capable of converting into a higher-efficiency environment through a vibration-rotation conversion apparatus and performing high-efficiency power generation.

The technical effects of the present invention are not limited to those mentioned above, and other technical effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a schematic perspective view of a REWOD generator according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line A-A 'in Fig.
3 is a schematic perspective view of a vibration-rotation converting unit.
4 is a schematic perspective view of the REWOD generator.
5 is a conceptual diagram for explaining the energy collection principle of the vibrating REWOD power generation unit.
6 is an explanatory view of the operation of a REWOD power generation apparatus according to an embodiment of the present invention.
7 is a schematic perspective view of a REWOD generator according to an embodiment of the present invention.
8 is a cross-sectional view taken along line B-B 'in Fig.
9 is a schematic perspective view of the REWOD generator.
10 is an exploded perspective view of the REWOD power generating unit.
11 is a conceptual diagram for explaining the energy collection principle of the rotary REWOD generator.
12 is an explanatory diagram of the operation of a REWOD power generation apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. Rather, the intention is not to limit the invention to the particular forms disclosed, but rather, the invention includes all modifications, equivalents and substitutions that are consistent with the spirit of the invention as defined by the claims.

It will be appreciated that when an element such as a layer, region or substrate is referred to as being present on another element "on," it may be directly on the other element or there may be an intermediate element in between .

Although the terms first, second, etc. may be used to describe various elements, components, regions, layers and / or regions, such elements, components, regions, layers and / And should not be limited by these terms.

A REWOD generator according to an embodiment of the present invention will be described.

The REWOD generator according to an embodiment of the present invention includes a REWOD generator for collecting energy and a vibration-rotation converter.

The REWOD generator may be a vibrating REWOD generator for collecting vibrational energy or a rotating REWOD generator for collecting rotational energy.

Depending on the type of REWOD generator, the vibration-rotation converter converts the vibration energy into rotational energy or the rotational energy into vibration energy. The vibration-rotation converting unit at this time includes a slide-crank structure, and the vibration energy can be converted into rotational energy or the rotational energy can be converted into vibrational energy by the slide-crank structure.

First, a case in which the REWOD power generator is a vibration type will be described.

1 is a schematic perspective view of a REWOD generator according to an embodiment of the present invention.

2 is a cross-sectional view taken along the line A-A 'in Fig.

Referring to FIGS. 1 and 2, an apparatus for generating REWOD according to an embodiment of the present invention includes a REWOD generator 20 for collecting energy and a vibration-rotation converting unit 10.

The REWOD power generating unit 20 includes a first electrode substrate 210 and a second electrode substrate 230 and conductive fluids 221 located between the first electrode substrate 210 and the second electrode substrate 230 (Not shown). ≪ / RTI > At this time, the first electrode substrate 210 or the second electrode substrate 230 is vibrated by the external physical force and the electrode portions of the first electrode substrate 210 or the second electrode substrate 230 and the conductive fluid 221 To collect the energy using the change in contact area.

The vibration-rotation converting unit 10 is connected to the first electrode substrate 210 or the second electrode substrate 230 of the REWOD power generating unit 20 to apply an external physical force to the first electrode substrate 210 or the second electrode substrate 230 To the electrode substrate 230, and converts the rotational energy into vibrational energy and transmits it.

Therefore, in addition to the method of collecting energy by directly using the rotary type REWOD generator in such a circumstance by converting the rotational energy into the vibration energy using the oscillation-rotation converting unit when the external physical force is the rotational energy for rotating, Accordingly, energy can be collected using the vibrating REWOD generator.

In addition, the vibration-rotation converting unit 10 may further include an energy decay unit 140 for attenuating the converted vibration energy. Accordingly, the vibration-rotation converting unit 10 converts the rotational energy into vibrational energy, attenuates the converted energy by the energy attenuating unit, and supplies the attenuated vibration energy to the first electrode substrate 210 or the second To the electrode substrate (230).

Therefore, in the case of an extreme rotation environment, by damping the ultimate energy, the risk of destruction of the REWOD generator 20 can be reduced. Therefore, energy collection is possible even in extreme rotation environments.

Therefore, the REWOD power generation apparatus of the present invention can be applied in an extreme rotation environment, so that it can be applied more flexibly, and can be used as an auxiliary power device and contribute to power supply and demand.

Hereinafter, the configuration of the vibration-rotation converting unit 10 will be described in more detail.

Fig. 3 is a schematic perspective view of the vibration-rotation converting unit 10. Fig.

3, the vibration-rotation converting unit 10 includes a rotating member 110, a connecting member 120, an elastic member 130, an energy-damping member 140, (150).

The rotating member 110 is rotated by an external physical force and receives rotational energy. For example, the rotary member 110 may be connected to a wheel axis of a vehicle and rotated by an external physical force. The shape of the rotating member 110 can be set to receive rotational energy according to the external environment, and the shape of the rotating member 110 is not particularly limited.

For example, the rotating member 110 may include a rotating plate 111 and a protrusion 112 spaced apart from the center of rotation of the rotating plate 111 by a predetermined distance. On the other hand, instead of the projecting portion 112, a groove portion may be included.

One end of the connecting member 120 is connected to the rotating member 110 and the other end is connected to the elastic member 130, which will be described later. The connecting member 120 is connected to the elastic member 130 so that the elastic member 130 linearly moves when the rotary member 110 rotates by external physical force.

For example, such a connecting member 120 may include a connecting rod 121. One end of the connection rod 121 is provided with a groove 123 corresponding to the protrusion 112 of the rotary member 110 and the protrusion 112 of the rotary member 110 can be inserted into and connected to the groove 123 . On the other hand, when the rotary member 110 is provided with a groove instead of the protrusion 112, one end of the connection rod 121 may have a protrusion so that they can be connected to each other.

The other end of the connection rod 121 may be provided with a protrusion 122 so as to be connected to the elastic member.

One end of the connecting rod 120 connected to the rotating member 110 during the rotational movement of the rotating member 110 performs a circular motion and the elasticity of the connecting rod 120 connected to the other end of the connecting rod 120 by the connecting rod 120 Member 130 is subjected to a linear motion.

The elastic member 130 is connected to the other end of the connecting member 120 and is vibrated by the connecting member 120. That is, when the connecting member 120 is the connecting rod 121, the elastic member 130 is connected to the other end of the connecting rod 121 and is vibrated by the connecting rod 121. Therefore, by converting the rotational energy of the rotary member 110 into vibrational energy by the connecting rod 121, the elastic member 130 vibrates.

The elastic member 130 may have any shape as long as it has a constant elastic modulus as well as a coil spring.

For example, the elastic member 130 may include a spring 131 and an upper connecting plate 132 and a lower connecting plate 133 coupled to the upper and lower portions of the spring 131 at this time. Accordingly, the upper connecting plate 132 is provided with the protrusion 134 at the upper portion, and the protrusion 134 can be provided with the fitting groove. Therefore, the projecting portion 122 of the connecting rod 121 can be inserted into the fitting groove of the projecting portion 134 and connected thereto. Further, the lower connecting plate 133 can be connected to an energy damping member described later.

The energy damping member 140 is connected to the elastic member 130 and attenuates the vibration energy transmitted from the elastic member 130.

For example, the energy damping member 140 may be a damper that damps vibration energy. For example, the energy damping member may be a hydraulic damper. However, the present invention is not limited thereto, and various known dampers can be used.

Therefore, in the case of an extreme rotation environment, the damping member 140 attenuates the energy received from the outside, and then transmits the damped energy to the REWOD generator 20, so that when the REWOD generator directly connects to the extreme environment It is possible to improve the safety by reducing the risk of destruction.

The vibration transmitting member 150 is connected to the energy damping member 140 and transmits the damped vibration energy to the first electrode substrate 210 or the second electrode substrate 230 of the REWOD power generating unit 20 . 2 is a structure in which the vibration transmitting member 150 is coupled to the protective cover 250 of the REWOD generator 20. Accordingly, the vibration transmitting member 150 can transmit the attenuated vibration energy to the second electrode substrate 230 coupled with the protective cover 250.

Hereinafter, the configuration of the vibrating REWOD generator will be described in detail.

4 is a schematic perspective view of the REWOD generator.

Referring to FIG. 4 together with FIGS. 1 and 2, the REWOD power generator includes a first electrode substrate 210, a first dielectric thin film (not shown), a first hydrophobic thin film (not shown), a conductive fluid array 220, 2 hydrophobic thin film (not shown), a second dielectric thin film (not shown), and a second electrode substrate 230.

The first electrode substrate 210 includes a plurality of grooves 211 located on a top surface thereof. The grooves 2100 at this time may be in the form of a dot. These grooves serve to prevent the later-described conductive fluid 221 from being displaced.

Also, the first dielectric thin film may be formed on the first electrode substrate 210, and the first hydrophobic thin film may be formed on the first dielectric thin film. Meanwhile, when the first dielectric thin film and the first hydrophobic thin film are formed on the first electrode substrate 210, a plurality of grooves 211 are maintained on the upper surface of the first electrode substrate 210.

The thickness of the first dielectric thin film may be 5 nm to 50 mm.

Preferably, the thickness of the first dielectric thin film can be set to 1 占 퐉 or less. Accordingly, the thickness of the dielectric thin film can be reduced to 1 μm or less, and at the same time, the thin film having a dense structure can be formed to greatly increase the capacitance, which leads to an increase in the power density and a more efficient and high- .

The first dielectric thin film may be formed of a material selected from the group consisting of silicon oxide (SiO x ), silicon nitride (SiN x ), tantalum oxide (Ta 2 O 5 ), titanium oxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), barium titanate 3 ), glass or polymer such as parylene, taflon or polydimethylsiloxane (PDMS), or a combination of these materials.

Such a first dielectric thin film can be formed by a vapor deposition method and a physical vapor deposition method. For example, the first dielectric thin film may be formed by a chemical vapor deposition (CVD) method, an atomic layer deposition (ALD) method, a sputtering method, a dip-coating method, A doctor blade method, a spin coating method, a screen printing method, or a spray coating method.

The first hydrophobic thin film may comprise a fluoropolymer-based material or super-water-repellent nanostructure. Such a first hydrophobic thin film has a large contact angle with the droplet, so that the contact area with the droplet is reduced. Accordingly, since the contact area between the first electrode substrate 210 and the liquid droplet is small in the absence of external force, the amount of change in the contact area between the first electrode substrate 210 and the liquid droplet due to vibration becomes large, The collection efficiency is improved.

The conductive fluid array 220 includes conductive fluids 221 disposed on the first electrode substrate 210 having the first dielectric thin film and the first hydrophobic thin film formed thereon corresponding to the positions of the grooves 211 .

These conductive fluids 221 may be in the form of droplets. The diameter of such a conductive fluid droplet may be between 1 [mu] m and 5 cm.

On the other hand, the conductive fluid 221 is a liquid metal such as gallium, indium and tin, which is an alloy of gallium, indium and tin, NaCl, LiCl, NaNo 3 , Na 2 SiO 3 , AlCl 3 -NaCl, LiCl-KCl, KCL, Na, 2 SO 4 , CH 3 COOH, HF, CuSO 4 , ethylene glycol, propylene glycol, and AgCl.

The second electrode substrate 230 is mounted on the conductive fluid array 220 so as to be oscillatable. The second electrode substrate 230 includes a second dielectric thin film (not shown) on the lower surface thereof and a second hydrophobic thin film Is formed.

The second dielectric thin film may be formed of at least one of silicon oxide (SiO x ), silicon nitride (SiN x ), tantalum oxide (Ta 2 O 5 ), titanium oxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), barium titanate (BaTiO 3 ) Glass or a polymer such as parylene, taflon or polydimethylsiloxane (PDMS), or a combination of these materials.

The second hydrophobic thin film may comprise a fluoropolymer-based material or super-water-repellent nanostructure.

The first electrode substrate 210 and the second electrode substrate 230 may further include barrier ribs 240 that support the first electrode substrate 210 and the second electrode substrate 230. In addition, it is preferable that the barrier ribs 240 use an elastic material so that the first electrode substrate 210 or the second electrode substrate 230 can vibrate.

The barrier rib 240 maintains the gap between the first electrode substrate 210 and the second electrode substrate 230 within a specific range even when the amplitude of the REWOD power generator is excessive.

The vibration transmitting member 150 of the vibration-rotation converting unit 10 may be coupled to the second electrode substrate 210. Therefore, the second electrode substrate 210 is vibrated by the vibration energy transmitted by the vibration transmitting member 150. Accordingly, the contact area between the electrode portion of the second electrode substrate 210 and the conductive fluid changes according to the vibration of the second electrode substrate 210, and the energy can be collected by using the capacitance change according to the change . In the case of the second electrode substrate 210, the substrate itself may be an electrode portion, and in some cases, may include an electrode region and a non-conductive region.

Meanwhile, the second electrode substrate 230 may further include a protective cover 250. In this case, the vibration transmitting member 150 may be connected to the upper portion of the protective cover 250 to transmit vibration energy to the second electrode substrate 230. In addition, the first electrode substrate 210 may further include a lower protective cover 251 to cover the lower portion of the first electrode substrate 210 to protect the first electrode substrate 210.

5 is a conceptual diagram for explaining the energy collection principle of the vibrating REWOD power generation unit.

Referring to FIG. 5, when a predetermined voltage is applied to the first electrode substrate 210 and the second electrode substrate 230, a voltage is applied to cause the polarization of the conductive fluid droplet 221. At this time, the charge is collected near the droplet and the substrate contact area (process 1 - steady state).

When the liquid is compressed between the first electrode substrate 210 and the second electrode substrate 230 by vibration, the droplet is pressed by the vibration to increase the contact area. Thus, charge is additionally supplied in the circuit (process 2 - compressed state) to match the charge balance with increasing contact area.

When the compression between the first electrode substrate 210 and the second electrode substrate 230 is released, the droplet is recovered from the compressed state and the contact area between the substrate and the droplet is reduced again. Therefore, the charge is returned to the circuit again (step 3 - recovery state) to match the charge balance by reducing the contact area. Thus, it is possible to produce electric power by collecting the charge that returns to the circuit in this way.

6 is an explanatory view of the operation of a REWOD power generation apparatus according to an embodiment of the present invention. Such a REWOD power generation device includes a vibration-rotation converting part and a vibrating REWOD power generating part.

Referring to FIG. 6, rotation occurs due to an external environment. The rotary motion is then converted into a vibration motion by the slide-crank structure.

Then, a damping vibration motion is performed by a damper.

Then, the oscillating REWOD generator is operated by the converted / reduced oscillation motion.

Next, a case in which the REWOD power generator is of the rotary type will be described.

7 is a schematic perspective view of a REWOD generator according to an embodiment of the present invention.

8 is a cross-sectional view taken along line B-B 'in Fig.

Referring to FIGS. 7 and 8, the REWOD generator according to an embodiment of the present invention includes a REWOD generator 40 and an oscillation-rotation converter 30 for collecting energy.

Referring to FIG. 9 to be described later with respect to the REWOD generator 40, the REWOD generator 40 includes the first electrode substrate 410, the second electrode substrate 430, the first electrode substrate 410, And a conductive fluid array 420 including conductive fluids 421 located between the two-electrode substrates 430. At this time, the first electrode substrate 410 or the second electrode substrate 430 is rotated by the external physical force so that the conductive fluid contacts the electrode portions of the first electrode substrate 410 or the second electrode substrate 430 The energy is collected using the change in contact area.

The vibration-rotation converting unit 30 is connected to the first electrode substrate 410 or the second electrode substrate 430 of the REWOD power generating unit 40 to transmit external physical force to the first electrode substrate 410 or the second electrode substrate 430 To the electrode substrate 430, and converts the vibration energy into rotational energy and transmits the rotational energy.

Therefore, in the case where the external physical force is the vibration energy to be vibrated, by converting the vibration energy into rotational energy using the vibration-rotation converting unit, in addition to the method of collecting energy by directly using the vibrating REWOD power generating unit in this environment, And the energy can be collected by using the rotary REWOD generator.

In addition, the vibration-rotation converting unit 30 may further include an energy damping member 320 for damping external vibration energy. In this case, the vibration-rotation converting unit 30 attenuates the external vibration energy by the energy damping member 320, and then converts the attenuated vibration energy into the rotational energy to transmit the rotational energy attenuated to the REWOD generating unit .

Therefore, in the case of an extreme vibration environment, by damping the ultimate energy, the risk that the REWOD generator 20 is destroyed can be reduced. Therefore, energy collection is possible even in extreme vibration environments.

Therefore, the REWOD power generation apparatus of the present invention can be applied in an extreme vibration environment, so that it can be applied more flexibly, and can be used as an auxiliary power device and contribute to power supply and demand.

Hereinafter, the configuration of the vibration-rotation converting unit 30 will be described in more detail.

7 and 8, the vibration-rotation converting unit 30 includes an oscillating member 310, an energy-attenuating member 320, an elastic member 330, a connecting member 340, and a rotation transmitting member 350 can do.

The vibration member 310 is vibrated by the external physical force and receives the vibration energy. The shape of the vibration member 310 can be set to receive vibration energy according to the external environment, and the shape of the vibration member 310 is not particularly limited.

For example, such an oscillating member 310 may be in the form of a plate.

The energy damping member 320 is connected to the vibration member 310 and attenuates the vibration energy transmitted from the vibration member 310.

For example, the energy damping member 320 may be a damper that damps vibration energy. For example, the energy damping member 320 may be a hydraulic damper. However, the present invention is not limited thereto, and various known dampers can be used. Therefore, a detailed description of the damper will be omitted.

For example, the operation of the damper will be briefly described. A case where the energy damping member 320 is a hydraulic damper as shown in FIG. 8 will be described. The external vibration energy causes the vibrating member 310 to vibrate and the center axis 321 of the hydraulic damper connected to the vibrating member 310 makes repetitive movement (black arrow). At this time, the fluid moves through the opening 322 (red arrow) and attenuation may occur due to the resistance of the fluid generated at this time.

Accordingly, in the case of an extreme vibration environment, the energy received from the outside by the energy damping member 320 is attenuated, and the attenuated energy is converted into vibrational energy and transmitted to the REWOD power generator, The risk of destruction can be reduced as compared with the case of direct connection, so that the safety can be further improved.

The elastic member 330 is connected to the energy-attenuating member 320 and vibrates by receiving the attenuated vibration energy.

The elastic member 330 may adopt any shape as long as it has a constant elastic modulus as well as a coil spring.

For example, the elastic member 330 may include a spring 331 and an upper connecting plate 332 and a lower connecting plate 333 coupled to the upper and lower portions of the spring 331 at this time. Thus, the lower connecting plate 333 can also be connected to the energy-attenuating member 320. The upper connection plate 332 is provided with a protrusion 334 at an upper portion thereof, and the protrusion 334 may have a fitting groove. Therefore, the projecting portion 342 of the connecting rod 341, which will be described later, can be inserted into and connected to the fitting groove of the protruding portion 334.

The connecting member 350 has one end connected to the elastic member 330 and the other end connected to the rotation transmitting member 350, which will be described later. The connecting member 350 is connected to the rotation transmitting member 350 so that the elastic member 330 vibrates.

For example, such a connecting member 340 may include a connecting rod 341. One end of the connection rod 310 may be connected to the connection groove of the protrusion 334 provided on the upper connection plate 332 of the elastic member 330 with the protrusion 342. Accordingly, the connection rod 341 can receive vibration energy from the elastic member 330. [

The other end of the connection rod 341 may be connected to the rotation transmitting part 350 by providing a groove corresponding to the protrusion 352 of the rotation transmitting member 350 to be described later.

The rotation transmitting member 350 may transmit the attenuated rotational energy to the REWOD generator 40 by receiving the rotational energy attenuated by the connecting member 340. [

The rotation transmitting member 350 includes a rotating plate 351, a protrusion 352 spaced a predetermined distance from the center of rotation of one surface of the rotating plate 351, and a rotating shaft 353 located at the rotating center of the opposite surface of the rotating plate 351 ). On the other hand, instead of the projecting portion 352, a groove portion may be included. The rotary shaft 353 may be connected to the first electrode substrate 410 or the second electrode substrate 430 of the REWOD generator 40.

Accordingly, when the elastic member 330 vibrates, the rotation transmitting member 350 is rotated by the connecting member 340 and the rotation energy is transmitted to the first electrode substrate 410 or the second electrode substrate 410 of the REWOD generator 40 To the second electrode substrate 430.

Hereinafter, the configuration of the rotary REWOD generator will be described in detail.

9 is a schematic perspective view of the REWOD generator. 10 is an exploded perspective view of the REWOD generator.

9 and 10 together with FIGS. 7 and 8, the REWOD generator 40 includes a first electrode substrate 410, a first dielectric thin film (not shown), a conductive fluid array 420, A thin film (not shown) and a second electrode substrate 430.

The first electrode substrate 410 may include a plurality of grooves 411 located on the upper surface.

The grooves 411 may be radially arranged apart from each other. The grooves 411 may be in the form of a dot or a channel. Hereinafter, a dot-shaped groove will be described as an example.

Accordingly, the conductive fluids 421 to be described later are disposed corresponding to the positions of these grooves 411. Accordingly, these grooves 411 serve to prevent displacement of the disposed conductive fluids 421. [

The first electrode substrate 410 may further include a through hole 412 at the center thereof. The through hole 412 may serve as a path for connecting the rotation axis 353 of the rotation transmitting member 350 and the second electrode substrate 430.

Also, a first dielectric thin film is formed on the first electrode substrate 410. The thickness of the first dielectric thin film may be 5 nm to 50 mm.

Preferably, the thickness of the first dielectric thin film can be set to 1 占 퐉 or less. Accordingly, the thickness of the dielectric thin film can be reduced to 1 μm or less, and at the same time, the thin film having a dense structure can be formed to greatly increase the capacitance, which leads to an increase in the power density and a more efficient and high- .

The first dielectric thin film may be formed of a material selected from the group consisting of silicon oxide (SiO x ), silicon nitride (SiN x ), tantalum oxide (Ta 2 O 5 ), titanium oxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), barium titanate 3 ), glass or polymer such as parylene, taflon or polydimethylsiloxane (PDMS), or a combination of these materials.

Such a first dielectric thin film can be formed by a vapor deposition method and a physical vapor deposition method. For example, the first dielectric thin film may be formed by a chemical vapor deposition (CVD) method, an atomic layer deposition (ALD) method, a sputtering method, a dip-coating method, A doctor blade method, a spin coating method, a screen printing method, or a spray coating method.

The conductive fluid array 420 may include conductive fluids 421 disposed on the first electrode substrate 410 on which the first dielectric thin film is formed, corresponding to the positions of the grooves 411.

These conductive fluids 421 may be in the form of droplets or channels. Preferably, when the grooves 411 have a dot shape, the conductive fluid is also formed into a droplet shape. When the grooves 411 have a channel shape, the conductive fluid is also formed into a channel shape and correspondingly arranged.

Therefore, when the grooves 411 are in the dot shape as shown in FIG. 10, the conductive fluids 411 are preferably selected as conductive fluid droplets in the form of droplets. The diameter of such a conductive fluid droplet may be between 1 [mu] m and 5 cm.

On the other hand, such a conductive fluid is a liquid metal such as gallium, indium and tin, which is an alloy of indium and tin, NaCl, LiCl, NaNo 3 , Na 2 SiO 3 , AlCl 3 -NaCl, LiCl-KCl, KCL, Na, NaOH, H 2 SO 4 It may include CH 3 COOH, HF, CuSO 4 , ethylene glycol, at least one of propylene glycol, and AgCl.

The second electrode substrate 430 is rotatably mounted on the first electrode substrate 410 on which the conductive fluid array 420 is disposed. For example, the rotation axis 353 of the rotation transmitting unit 350 may be coupled to the center of the second electrode substrate 430 to rotate.

In addition, the second electrode substrate 430 may be disposed to abut the conductive fluid array.

Accordingly, the second electrode substrate 430 is rotated by an external physical force to change the contact area of the conductive fluid 411 with the electrode portion of the second electrode substrate 430, for example, So that energy can be collected.

For example, the second electrode substrate 430 may include a branched electrode region 431 and a non-conductive region 432 other than the electrode region. The electrode region 431 may include a conductive material. For example, the conductive material may be an inorganic material containing at least one of ITO, IGO, chromium, aluminum, IZO (Indium Zinc Oxide), IGZO (Indium Gallium Zinc Oxide), ZnO, ZnO 2 or TiO 2 , (PEDOT), carbon nanotube (CNT), graphene, polyacetylene, polythiophene (PT), polypyrrole (PT), and polyphenylene sulfide And may be an organic material containing at least one of polypyrrole, polyparaphenylene (PPV), polyaniline, polysulfur nitride, or polyparaphenylenevinylene. In addition, the nonconductive region 432 may include a nonconductive material.

Therefore, when the second electrode substrate 430 is rotated, the contact area between the electrode region 431 of the second electrode substrate 430 and the conductive fluid 421 changes. As a result, You can collect energy by.

As another example of the second electrode substrate 430, the second electrode substrate 430 itself may have a branch shape. In this case, the entire second electrode substrate 430 may be formed of an electrode material. Accordingly, in the case of such a type of substrate, the substrate itself serves as an electrode, and as the substrate rotates, the contact area between the substrate and the conductive fluid 421 changes, and by using the change in capacitance Energy can be collected.

A second dielectric thin film (not shown) is formed on the lower surface of the second electrode substrate 430. Thus, the second dielectric film will come into contact with the conductive fluid array 200.

The thickness of the second dielectric thin film may be 5 nm to 50 mm. Preferably, the thickness of the second dielectric thin film can be set to 1 占 퐉 or less. Therefore, the thickness of the second dielectric thin film is made thinner than 1 탆, and at the same time, the thin film having a dense structure is formed, thereby increasing the capacitance significantly. This leads to an increase in the power density and a more efficient and high- .

The second dielectric thin film may be formed of at least one selected from the group consisting of silicon oxide (SiO x ), silicon nitride (SiN x ), tantalum oxide (Ta 2 O 5 ), titanium oxide (TiO 2 ), aluminum oxide (Al 2 O 3 ), barium titanate 3 ), glass or polymer such as parylene, taflon or polydimethylsiloxane (PDMS), or a combination of these materials.

Such a second dielectric thin film can be formed by a vapor deposition method and a physical vapor deposition method. For example, the second dielectric thin film may be formed by a chemical vapor deposition method, an atomic layer deposition method, a sputtering method, a dip-coating method, a doctor blade method, a spin coating method, a screen printing method or a spray coating method.

The protective cover 440 may be positioned on the second electrode substrate 430. For example, the protective cover 440 is coupled to the first electrode substrate 410 to cover the conductive fluid array 420 and the second electrode substrate 430 on the first electrode substrate 410, can do.

Accordingly, the protective cover 440 can prevent the second electrode substrate 430, which may be generated during the rotation of the second electrode substrate 430, from being separated from the mechanical seal.

In addition, the protective cover 440 may be formed so as to cover the first electrode substrate 440 as the case may be, thereby protecting the second electrode substrate 440 together.

Meanwhile, in order to fix the position of the conductive fluid array 420, an inert gas such as argon gas may be filled in the space between the first electrode substrate 410 and the second electrode substrate 430.

11 is a conceptual diagram for explaining the energy collection principle of the rotary REWOD generator.

11, the first electrode substrate 410, on which the conductive fluid droplets 421 are located, is rotated to rotate the second electrode substrate 430 positioned on the conductive fluid droplets 421 in a fixed state do.

The second electrode substrate 430 rotates and begins to strike the conductive fluid droplet 410 located on the first electrode substrate 410 and the electrode region 431 of the second electrode substrate 430. The charge is collected near the contact area (process 1 - contact start).

The contact area between the electrode region 431 of the second electrode substrate 430 and the conductive fluid droplet 421 is maximized while the second electrode substrate 430 is continuously rotated. As the contact area increases, charge is additionally supplied in the circuit to match the charge balance (process 2 - maximum contact area).

The second electrode substrate 430 is further rotated so that the electrode region 431 of the second electrode substrate 430 passes through the conductive fluid droplet 421, The contact area between the portion of the electrode region 431 and the conductive fluid droplet 421 is reduced again (process 3 - contact finishing state). Thus, the charge returns to the circuit again to match the charge balance with the reduction of the contact area.

Thus, it is possible to produce electric power by collecting the charge that returns to the circuit in this way.

12 is an explanatory diagram of the operation of a REWOD power generation apparatus according to an embodiment of the present invention. Such a REWOD generator includes a vibration-rotation converter and a rotating REWOD generator.

Referring to FIG. 12, vibration occurs due to the external environment. Then, a damping vibration motion is performed by a damper.

Then, the oscillating motion is converted into rotational motion by the slide-crank structure.

Then, the rotary REWOD generator is operated by the converted / reduced rotational motion.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a REWOD generator capable of applying more flexibly in an extreme vibration and rotation environment, and being used in an auxiliary power device or the like to contribute to power supply and demand.

Further, it is possible to provide a REWOD power generation apparatus capable of converting into a higher-efficiency environment through a vibration-rotation conversion apparatus and performing high-efficiency power generation.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

10, 30: Vibration-rotation converting unit 20, 40: REWOD generator
110: rotating member 111: rotating plate
112: protrusion 120: connecting member
121: connection rod 122: protrusion
123: connection groove 130: elastic member
131: spring 132: upper connection plate
133: lower connecting plate 134:
140: energy damping member 150: vibration transmitting member
210: first electrode substrate 211: groove
220: Conductive fluid array 221: Conductive fluid
230: second electrode substrate 240: partition wall
250: protective cover 310:
320: energy damping member 321: center axis
322: opening 330: elastic member
331: spring 332: upper connection plate
333: Lower connection plate 334:
340: connecting member 341: connecting rod
342: protrusion 350: rotation transmitting member
351: Spinning plate 352:
353: rotating shaft 410: first electrode substrate
411: groove 412: through hole
420: Conductive fluid array 421: Conductive fluid
430: second electrode substrate 431: electrode region
432: nonconductive area 440: protective cover

Claims (20)

A first electrode substrate, a second electrode substrate, and a conductive fluid array disposed between the first electrode substrate and the second electrode substrate, wherein the first electrode substrate, the second electrode substrate, A REWOD power generator for collecting energy using a change in a contact area between the electrode portion of the first electrode substrate or the second electrode substrate and the conductive fluid while the substrate vibrates; And
And a vibration-rotation converting unit connected to the first electrode substrate or the second electrode substrate of the REWOD power generating unit to transmit external physical force to the first electrode substrate or the second electrode substrate, and,
Wherein the vibration-
A rotating member rotated by an external physical force;
A connecting member whose one end is connected to the rotating portion;
An elastic member connected to the other end of the connecting member and vibrated by the connecting member;
An energy damping member connected to the elastic member for damping vibration energy transmitted from the elastic member; And
And a vibration transmitting member connected to the energy damping member and transmitting the attenuated vibration energy to the first electrode substrate or the second electrode substrate of the REWOD power generating unit.
delete The method according to claim 1,
Wherein the vibration-rotation converting unit includes a slide-crank structure.
delete The method according to claim 1,
The REWOD generator includes:
A first electrode substrate including a plurality of grooves located on an upper surface;
A first dielectric thin film formed on the first electrode substrate;
A first hydrophobic thin film formed on the first dielectric thin film;
A conductive fluid array comprising conductive fluids disposed on a first electrode substrate on top of which a first dielectric thin film and a first hydrophobic thin film are formed, corresponding to locations of the grooves; And
And a second electrode substrate provided on the conductive fluid array so as to be oscillatable and having a second dielectric thin film on a lower surface and a second hydrophobic thin film disposed on a lower portion of the second dielectric thin film.
6. The method of claim 5,
Wherein the grooves prevent displacement of the conductive fluid.
6. The method of claim 5,
The conductive fluid is a liquid metal ground Stan, NaCl, LiCl, NaNo 3, Na 2 SiO 3, AlCl 3 -NaCl, LiCl-KCl, KCL, Na, NaOH, H 2 SO 4, CH 3 COOH, HF, CuSO 4, And at least one of ethylene glycol, propylene glycol, and AgCl.
6. The method of claim 5,
And a partition wall for supporting between the first electrode substrate and the second electrode substrate.
6. The method of claim 5,
Wherein the first hydrophobic thin film or the second hydrophobic thin film comprises a fluoropolymer-based substance or super-water-repellent nanostructure.
And a conductive fluid array disposed between the first electrode substrate and the second electrode substrate, the conductive fluid array comprising a first electrode substrate, a second electrode substrate, and a conductive fluid array disposed between the first electrode substrate and the second electrode substrate, A REWOD power generator for collecting energy using a change in the contact area between the electrode portion of the first electrode substrate and the second electrode substrate and the conductive fluid while the electrode substrate rotates; And
And a vibration-rotation converting unit connected to the first electrode substrate or the second electrode substrate of the REWOD power generating unit to transmit an external physical force to the first electrode substrate or the second electrode substrate, and,
Wherein the vibration-
An oscillating member vibrating by an external physical force;
An energy damping member connected to the vibration member and damping vibration energy transmitted from the vibration member;
An elastic member connected to the energy damping member and vibrating by receiving the damped vibration energy;
A connecting member having one end connected to the elastic member; And
And a rotation transmitting member connected to the other end of the connecting member and rotated by the connecting member to transmit rotational energy to the first electrode substrate or the second electrode substrate of the REWOD power generating unit.
11. The method of claim 10,
Wherein the vibration-rotation converting unit includes a slide-crank structure.
delete 11. The method of claim 10,
The REWOD generator includes:
A first electrode substrate including a plurality of grooves located on an upper surface;
A first dielectric thin film formed on the first electrode substrate;
A conductive fluid array comprising conductive fluids disposed on a first electrode substrate on which a first dielectric film is formed, corresponding to locations of the grooves; And
And a second electrode substrate rotatably mounted on the first electrode substrate on which the conductive fluid array is disposed and having a second dielectric thin film formed on the lower surface thereof,
And the rotation axis of the rotation transmitting member is coupled to the center of the second electrode substrate.
14. The method of claim 13,
Wherein the grooves are in the form of dots or channels.
14. The method of claim 13,
Wherein the grooves are radially spaced apart from each other.
14. The method of claim 13,
Wherein the grooves prevent displacement of the conductive fluid.
14. The method of claim 13,
Wherein the conductive fluid is in the form of a droplet or channel.
14. The method of claim 13,
The conductive fluid is a liquid metal ground Stan, NaCl, LiCl, NaNo 3, Na 2 SiO 3, AlCl 3 -NaCl, LiCl-KCl, KCL, Na, NaOH, H 2 SO 4, CH 3 COOH, HF, CuSO 4, And at least one of ethylene glycol, propylene glycol, and AgCl.
14. The method of claim 13,
Wherein the second electrode substrate is in the form of a branch.
14. The method of claim 13,
Wherein the second electrode substrate includes a branched electrode region and a nonconductive region other than the electrode region.
KR1020140092313A 2014-07-22 2014-07-22 REWOD Generating Apparatus KR101528105B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020140092313A KR101528105B1 (en) 2014-07-22 2014-07-22 REWOD Generating Apparatus
PCT/KR2015/007558 WO2016013849A1 (en) 2014-07-22 2015-07-21 Rewod generation apparatus and reverse electrowetting generation module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140092313A KR101528105B1 (en) 2014-07-22 2014-07-22 REWOD Generating Apparatus

Publications (1)

Publication Number Publication Date
KR101528105B1 true KR101528105B1 (en) 2015-06-12

Family

ID=53503664

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140092313A KR101528105B1 (en) 2014-07-22 2014-07-22 REWOD Generating Apparatus

Country Status (1)

Country Link
KR (1) KR101528105B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101884395B1 (en) * 2017-03-13 2018-08-30 재단법인 나노기반소프트일렉트로닉스연구단 Capacitive pressure sensor comprising ionic liquid and graphene, and method for manufacturing of the same
CN110432581A (en) * 2019-08-09 2019-11-12 河南大学 Generate electricity airbag apparatus and insole or sole using the power generation air bag

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120003514U (en) * 2010-11-11 2012-05-21 대우조선해양 주식회사 Apparatus of rigidity transition for aerogenerator system's mount using the piezo-electric element
KR20120052018A (en) * 2010-11-15 2012-05-23 빅터 스미스 에드워드 The aerogenerator
KR101411337B1 (en) * 2013-02-15 2014-06-25 전자부품연구원 Apparatus having a stacked structure for energy converting using liquid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120003514U (en) * 2010-11-11 2012-05-21 대우조선해양 주식회사 Apparatus of rigidity transition for aerogenerator system's mount using the piezo-electric element
KR20120052018A (en) * 2010-11-15 2012-05-23 빅터 스미스 에드워드 The aerogenerator
KR101411337B1 (en) * 2013-02-15 2014-06-25 전자부품연구원 Apparatus having a stacked structure for energy converting using liquid

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Reverse electrowetting as a new approach to high-power energy harvesting", Nature communications 2011년 article. *
"Reverse electrowetting as a new approach to high-power energy harvesting", Nature communications 2011년 article.*

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101884395B1 (en) * 2017-03-13 2018-08-30 재단법인 나노기반소프트일렉트로닉스연구단 Capacitive pressure sensor comprising ionic liquid and graphene, and method for manufacturing of the same
CN110432581A (en) * 2019-08-09 2019-11-12 河南大学 Generate electricity airbag apparatus and insole or sole using the power generation air bag

Similar Documents

Publication Publication Date Title
JP6658864B2 (en) Element, cell and power generator
Wu et al. Multifunctional sensor based on translational‐rotary triboelectric nanogenerator
Liu et al. Oblate spheroidal triboelectric nanogenerator for all‐weather blue energy harvesting
Wu et al. Electrohydrodynamic jet printing driven by a triboelectric nanogenerator
US10714676B2 (en) Sensor and sensor system
Hu et al. Triboelectric nanogenerator built on suspended 3D spiral structure as vibration and positioning sensor and wave energy harvester
EP3197039B1 (en) Power generating element and power generating device
KR101528105B1 (en) REWOD Generating Apparatus
JP5907533B2 (en) Method and apparatus for energy harvesting
US10541628B2 (en) Power generating device having a deformable element that generates power when deforming
JP5422676B2 (en) Piezoelectric generator
JP6746901B2 (en) Power generator
JP2017126722A (en) element
JP6808930B2 (en) Power generation element and power generation equipment
JPWO2017154303A1 (en) Emergency stop pressure sensor, safety device and safety system
KR101442632B1 (en) piezoelectric composite film and piezoelectric apparatus using the same
US20180262126A1 (en) High Temperature Downhole Power Generating Device
JP6891525B2 (en) Sensors and sensor systems
EP3806315B1 (en) Element and method for manufacturing element
CN110138261B (en) Generator based on double charge layers and power generation method thereof
Zhu et al. Power generation from microfluidic drops using inorganic silicon dioxide electret film
CN115118175A (en) Component
JP2018072024A (en) Sensor, holding device, and method for initialization of robot and sensor
Tao et al. MEMS/NEMS-Enabled Vibrational Energy Harvesting for Self-Powered and Wearable Electronics
Liu et al. A novel composite piezoelectric energy harvester

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee