KR102169142B1 - Generating structure using electro active polymer and self-powered lighting device using the same - Google Patents

Abstract

An object of the present invention is to provide a power generation structure using an electroactive polymer that generates electrical energy by heat, vibration, and external shock, and uses the generated electrical energy as an auxiliary power source, and a self-powered lighting device using the same. To this end, the present invention is installed so that the power generation unit made of an electroactive polymer material is in close contact with a radiator that emits heat, and when heat is generated from the radiator, the power generation unit outputs electrical energy generated from the electroactive polymer material of the power generation unit. It features. Therefore, the present invention has the advantage of performing self-power generation by using heat generated by the operation of the lighting device and vibration or external shock applied to the lighting device.

Description

Power generation structure using electroactive polymer and self-powered lighting device using the same {GENERATING STRUCTURE USING ELECTRO ACTIVE POLYMER AND SELF-POWERED LIGHTING DEVICE USING THE SAME}

The present invention relates to a self-powered structure using an electroactive polymer and a lighting device using the same, and more particularly, to generate electric energy by heat, vibration, and external shock, and to use the generated electric energy as an auxiliary power source. It relates to a power generation structure using a polymer and a self-powered lighting device using the same.

In general, a light emitting diode (LED) is a device that bonds a p-type semiconductor and an n-type semiconductor, and emits light while electrons and holes are bonded at the junction surface.

Since these LEDs can irradiate high-efficiency light with a low voltage, they are used in home appliances, remote controls, electronic boards, and various automated devices, and are environmentally friendly and have excellent lifespan and durability, and thus are applied as various lighting devices.

Due to the characteristics of these LEDs, conventional lighting devices such as incandescent bulbs and fluorescent lamps are being replaced by lighting devices using LEDs.

1 is a cross-sectional view showing the structure of a lighting device using a general LED. The lighting device 10 includes a housing 11 having a storage space therein, and a plurality of LED chips installed inside the housing 11 ( 13) a printed circuit board 12 mounted thereon, a heat dissipating member 14 that absorbs and radiates heat generated by the operation of the LED chip 13, and the inside of the housing 11 is sealed, It is configured to include a diffusion unit (11a) for diffusing the light output from the LED chip 13 to be output.

In addition, FIG. 2 is a view showing a lighting device in which the heat dissipation member is integrally configured with the housing. As shown in FIG. 2A, the lighting device 20 constitutes a heat dissipation member 21a on one side of the housing 20, As shown in FIG. 2B, a printed circuit board 22 on which a plurality of LED chips 23 are mounted is in close contact with the other side of the housing 20, and the inside of the housing 20 is sealed. By installing a diffusion part (21b) to diffuse and output the light output from the LED chip (23), the heat generated from the LED chip (23) is directly absorbed by the housing (20) and externally through the heat dissipating member (21a). To be released.

In addition, recently, there has been proposed a lighting device capable of performing a lighting function without external power supply by providing a self-generating means using sunlight in the above-described lighting device.

However, such a lighting device having a self-powered means by solar light has a problem in that the amount of power generation and power generation efficiency are determined according to the amount of sunlight from the sun, so that the lighting device cannot provide a sufficient amount of light.

In addition, although a hybrid type lighting device that generates electricity by selectively using solar energy and wind power has been proposed, the structure is complicated, and there is a problem in that it does not provide adequate power generation amount and power generation efficiency by wind speed.

Document 1. Korean Patent Application Publication No. 10-2010-0026665 (Name of invention: self-powered lighting device) Document 2. Korean Registered Patent Publication No. 10-1234280 (Name of invention: Hybrid streetlight capable of self-power generation)

In order to solve this problem, the present invention provides a power generation structure using an electroactive polymer that generates electrical energy by heat, vibration, and external shock, and uses the generated electrical energy as an auxiliary power source, and a self-powered lighting device using the same. It is aimed at.

In order to achieve the above object, the present invention is installed so that the power generation unit made of an electroactive polymer material is in close contact with a radiator that emits heat, and when heat is generated from the radiator, electricity generated by the electroactive polymer material of the power generation unit It is characterized by outputting energy.

In addition, the power generation unit according to the present invention is characterized in that it has an insertion groove so that at least a portion of the heat sink is inserted.

In addition, the power generation unit according to the present invention is characterized in that it outputs electrical energy when vibration or external shock occurs.

In addition, the power generation unit according to the present invention comprises a first polymer unit made of a fiber or film containing a ferroelectric electroactive polymer material; And an electrode part installed in the first polymer part and outputting electrical energy generated by the first polymer part to the outside.

In addition, the power generation unit according to the present invention includes a second polymer unit including the first polymer unit and a dielectric elastomer electroactive polymer material; And an electrode part installed in the second polymer part to output electric energy generated by the second polymer part to the outside.

In addition, the power generation unit according to the present invention is characterized in that it further comprises a heat dissipating unit for discharging the heat conducted from the radiator to the outside.

In addition, the power generation unit according to the invention is characterized in that it is made of a porous structure having a plurality of through-holes for discharging the heat conducted from the radiator to the outside.

In addition, the power generation unit according to the present invention is characterized in that the uneven portion is formed on the outer surface.

In addition, the present invention is installed in the heat dissipation unit of the lighting unit, the power generation unit made of an electroactive polymer material, and the power generation unit is provided with an insertion groove to cover the outside of the heat dissipation unit. A power generation structure that outputs electrical energy generated from the active polymer material through the electrode portion; And a light source unit that outputs light, a heat dissipation unit configured to conduct and discharge heat generated from the light source unit, and control an operation of the light source unit using electric energy output from the power generation structure.

In addition, the lighting unit according to the present invention is characterized in that it further comprises an auxiliary power supply for storing electrical energy output from the power generation structure.

The present invention has the advantage of performing self-power generation by using heat generated by the operation of the lighting device and vibration or external shock applied to the lighting device.

In addition, the present invention provides the electric energy generated by self-power generation as an auxiliary power source of the lighting device, thereby enabling sufficient power generation by itself, and has the advantage of performing an effective lighting function through sufficient light emission using an auxiliary power source. .

1 is a cross-sectional view showing the structure of a lighting device using a general LED.
2 is an exemplary view showing a lighting device in which a heat dissipation member according to the prior art is integrally configured with a housing.
3 is a perspective view showing a power generation structure using an electroactive polymer according to the present invention.
Figure 4 is a cross-sectional view showing the structure of the power generation structure using the electroactive polymer according to Figure 3;
5 is an exemplary view showing a state of use of the power generation structure using the electroactive polymer according to FIG. 3.
6 is a cross-sectional view showing another embodiment of a power generation structure using an electroactive polymer according to the present invention.
7 is a cross-sectional view showing another embodiment of a power generation structure using an electroactive polymer according to the present invention.
8 is a cross-sectional view showing another embodiment of the power generation structure using the electroactive polymer according to the present invention.
9 is a block diagram showing the configuration of a self-powered lighting device using an electroactive polymer power generation structure according to the present invention.
Figure 10 is an exemplary view showing a state of use of the self-powered lighting device using the electroactive polymer power generation structure according to Figure 9.
11 is an exemplary view showing another state of use of the self-powered lighting device using the electroactive polymer power generation structure according to FIG. 9.

Hereinafter, a preferred embodiment of a power generation structure using an electroactive polymer according to the present invention and a self-powered lighting device using the same will be described in detail with reference to the accompanying drawings.

In this specification, the expression that a certain part "includes" a certain component does not exclude other components, but means that other components may be further included.

In addition, terms such as "... unit", "... group", and "... module" mean units that process at least one function or operation, which can be classified into hardware, software, or a combination of the two.

3 is a perspective view showing a power generation structure using the electroactive polymer according to the present invention, FIG. 4 is a cross-sectional view showing the structure of the power generation structure using the electroactive polymer according to FIG. 3, and FIG. 5 is an electroactive polymer according to FIG. It is an exemplary diagram showing the state of use of the power generation structure using.

As shown in FIGS. 3 to 5, the power generation structure 100 includes a power generation unit 110 made of an electroactive polymer material, and an insertion groove 120 so that a radiator is inserted into the power generation unit 110 to be in close contact. ).

The power generation unit 110 includes an electroactive polymer material operating on a ferroelectric principle of operation, and includes a first polymer unit 111, an electrode unit 112 and 112 ′, and an insulating unit 113 Consists of including.

That is, the power generation unit 110 is installed in close contact with a radiator that emits heat, and electrical energy is generated from an electroactive polymer material through deformation by heat generated from the radiator, and the overall longitudinal cross-sectional shape is " It is composed of "∩" shape.

The first polymer part 111 is made of a ferroelectric electroactive polymer material, and the ferroelectric electroactive polymer material has a fast mechanical/electrical coupling reaction rate, high reliability and stability for mechanical/chemical behavior, and low impedance. It can detect, and detects deformation due to heat, vibration or external shock, and outputs electrical energy according to the sensed deformation.

In addition, the first polymer part 111 may be formed in a fiber or film form, and may be formed of PVDF (Polyvinylidene fluoride), but is not limited thereto.

In addition, in the present embodiment, a configuration consisting of one first polymer part 111 is described as an example, but the present invention is not limited thereto, and a plurality of first polymer parts 111 may be stacked at regular intervals.

The electrode parts 112 and 112 ′ are connected to the first polymer part 111 to transmit electrical energy generated by the deformation of the first polymer part 111 to an external lighting device or a power storage device.

The insulating part 113 covers the outside of the first polymer part 111 and the electrode parts 112 and 112 ′ to ensure electrical stability.

In addition, the power generation unit 110 includes an insertion groove 120 so that at least a portion of the heat dissipation unit 220 is inserted.

The insertion groove 120 is a heat dissipation unit 220 that radiates heat when heat generated from the light source unit 210 consisting of a printed circuit board 211 and a plurality of LED chips 212 mounted on the printed circuit board 211 is conducted. ) And the power generation unit 110 to be in close contact with each other, so that the power generation unit 110 can generate electrical energy by thermal deformation by heat generated from the heat dissipation unit 220.

On the other hand, in this embodiment, in order to combine the power generation unit 110 with the heat dissipation unit 220, the longitudinal cross-sectional shape is configured in a "∩" shape, but is not limited thereto, and the light source unit 210 is formed of a plate-shaped film. ) And the heat dissipation unit 220 may be installed between, and any shape capable of thermal deformation through contact with the heat dissipation unit 220 may be included.

Next, another embodiment of the power generation structure 100a according to the present invention will be described with reference to FIG. 6.

The power generation structure 100a according to the embodiment of FIG. 6 is configured in the same shape and structure as the embodiment according to FIG. 3, and is electrically synthesized through heat conducted from the heat dissipation unit 220 on the outside of the power generation unit 110. A heat dissipating unit 130 is additionally configured to allow the polymer material to be rapidly discharged to the outside of the power generation unit 110 after power generation is performed.

That is, in order to prevent the heat dissipation characteristics of the heat dissipation unit 220 from being reduced due to the power generation structure 100a installed for power generation, a heat dissipation resin layer such as a thermally conductive resin is configured as the heat dissipation unit 130.

In addition, as shown in FIG. 7, in order to prevent the heat dissipation characteristic of the heat dissipation unit 220 from being reduced, the power generation structure 100b may be configured.

The power generation structure 100b according to the embodiment of FIG. 7 is configured in the same shape and structure as the embodiment according to FIG. 3, and the power generation unit 110b directly discharges part of the heat conducted from the heat dissipation unit 220 to the outside. It is composed of a porous structure having a plurality of through holes 116 in the body of the power generation unit (110b).

That is, by forming a plurality of through-holes 116 along the body of the power generating unit 110b, some of the heat generated in the heat dissipating unit 220 is conducted to the power generating unit 110b so that the power generation operation by thermal deformation is performed, The remaining heat is radiated to the outside through the through hole 116 to prevent a decrease in heat dissipation characteristics of the heat dissipation unit 220.

In addition, as shown in FIG. 8, in order to prevent the heat dissipation characteristics of the heat dissipation unit 220 from being reduced, a power generation structure 100c may be configured.

The power generation structure 100c according to the embodiment of FIG. 8 is configured in the same shape and structure as the embodiment according to FIG. 3, and the power generation unit 110c increases the area in which the heat conducted from the heat dissipation unit 220 is discharged. By forming the uneven parts 117 and 117 ′ on the outer surface of the power generation unit 110c so that the heat dissipation characteristics of the heat dissipation unit 220 can be prevented from being reduced.

Next, a self-powered lighting device using an electroactive polymer power generation structure according to the present invention will be described with reference to FIG. 9.

As shown in Figure 9, the self-powered lighting device using the electroactive polymer power generation structure is installed in the heat dissipation unit 220 of the lighting unit 200, the power generation unit 110 made of an electroactive polymer material, and the power generation unit ( 110) is provided with an insertion groove 120 to cover the outside of the heat dissipation unit 220, and when heat is generated in the heat dissipation unit 220, electric energy generated from the electroactive polymer material of the power generation unit 110 is A power generation structure 100 outputting through the electrode units 112 and 112', a light source unit 210 outputting light, and a heat dissipation unit 220 configured to conduct heat generated from the light source unit 210 to be discharged. And a lighting unit 200 that controls the operation of the light source unit 210 by using electric energy output from the power generation structure 100.

The lighting unit 200 stores a light source unit 210 that outputs light, a heat dissipation unit 220 that emits heat generated by the operation of the light source unit 210, and electrical energy output from the power generation structure 100. And, the auxiliary power supply unit 230 for supplying the stored electric energy to the light source unit 210 or the power supply unit 240, the power supply unit 240 for supplying power to the light source unit 210, and the operation of the light source unit 210 It is configured to include a control and a control unit 250 for controlling the switching operation of the auxiliary power supply unit 230.

The auxiliary power supply unit 230 may be configured integrally with the power supply unit 240, and stores the electric energy generated in the power generation structure 100 in the auxiliary power supply unit 230 according to the switching operation control of the control unit 250 Alternatively, the electric energy stored in the auxiliary power supply unit 230 is supplied to the light source unit 210.

The power supply unit 240 is a configuration for supplying power to the light source unit 210, and is composed of a battery capable of charging and discharging, and electric energy supplied from a solar cell (not shown) or the auxiliary power supply unit 230 is charged. To be able to.

The control unit 250 stores the electric energy generated in the power generation structure 100 in the auxiliary power supply unit 230, and measures the voltage value or current amount stored in the auxiliary power supply unit 230 to reach a certain voltage or current. Until the electric energy generated in the power generation structure 100 is to be stored in the auxiliary power supply unit 230.

On the other hand, in the lighting device using the electroactive polymer power generation structure according to the present invention, the power generation structure 100 may generate electrical energy by thermal deformation using heat generated from the heat dissipation unit 220, as shown in FIG. It is installed on the light buoy 300 to generate electric energy not only through heat but also through vibrations generated when the light buoy 300 is shaken by waves, so that electric energy can be generated by heat and vibration.

In addition, in the lighting device using the electroactive polymer power generation structure according to the present invention, the power generation structure 100 is installed on the street light 400 as shown in FIG. 11 so that not only heat but also raindrops hit the street light 400 to cause an external shock. And, since electric energy may be generated through vibration, electric energy may be generated by heat, vibration, and external shock.

In the present embodiment, the lighting device is described as a light buoy and a street light for convenience of explanation, but is not limited thereto, and a lighting device installed in a place where heat, vibration and external shock are generated, such as a road sign, a road sign, and a security light installed on a road Could be all included.

Therefore, it is possible to perform self-generation by using the heat generated by the operation of the lighting device and the vibration or external shock applied to the lighting device, and by providing the electric energy generated by the self-power generation as auxiliary power of the lighting device, As a result, sufficient power generation is possible, and effective lighting functions can be performed through sufficient light emission using auxiliary power.

As described above, the present invention has been described with reference to preferred embodiments of the present invention, but those skilled in the art can variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. You will understand that you can do it.

In addition, reference numerals in the claims of the present invention are provided for clarity and convenience of description, and are not limited thereto. In the process of describing the embodiments, the thickness of the lines shown in the drawings, the size of components, etc. May be exaggerated for clarity and convenience of description, and the above-described terms are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users and operators. Is to be made based on the contents throughout this specification.

100, 100a, 100b, 100c: power generation structure
110, 110a, 110b, 110c: power generation department
111: first polymer part 112, 112': electrode part
113: insulation part 116: through hole
117, 117': uneven portion 120: insertion groove
130: heat dissipation unit 200: lighting unit
210: light source 211: printed circuit board
212: LED chip 220: radiator
230: auxiliary power supply 240: power supply
250: control unit 300: light buoy
400: street light

Claims (9)

Power generation units (110, 110a, 110b, 110c) made of an electroactive polymer material are installed to be in close contact with a radiator that emits heat, and when heat is generated from the radiator, the power generation units (110, 110a, 110b, 110c) ), but outputs the electrical energy generated from the electroactive polymer material,
The power generation unit (110, 110a, 110b, 110c) is a power generation structure using an electroactive polymer, characterized in that provided with an insertion groove (120) so that at least a portion of the radiator is inserted. delete The method of claim 1,
The power generation unit (110, 110a, 110b, 110c) is a power generation structure using an electroactive polymer, characterized in that to output electrical energy when vibration or external impact occurs. The method of claim 1 or 3,
The power generation unit (110, 110a, 110b, 110c) includes a first polymer unit 111 made of a fiber or film containing a ferroelectric electroactive polymer material; And
Power generation using an electroactive polymer, characterized in that it includes electrode units 112 and 112 ′ that are installed on the first polymer unit 111 to output electrical energy generated from the first polymer unit 111 to the outside. Structure. The method of claim 1,
The power generation unit 110 is a power generation structure using an electroactive polymer, characterized in that it further comprises a heat dissipating unit 130 for discharging the heat conducted from the radiator to the outside. The method of claim 1,
The power generation unit (110b) is a power generation structure using an electroactive polymer, characterized in that it is made of a porous structure having a plurality of through holes (116) for discharging the heat conducted from the radiator to the outside. The method of claim 1,
The power generation unit (110c) is a power generation structure using an electroactive polymer, characterized in that the irregularities (117, 117') are formed on the outer surface. It is installed in the heat dissipation part 220 of the lighting part 200, the power generation part 110 made of an electroactive polymer material, and the insertion groove 120 so that the power generation part 110 covers the outside of the heat dissipation part 220 A power generation structure 100 configured to output electrical energy generated by the electroactive polymer material of the power generation unit 110 through the electrode units 112 and 112' when heat is generated in the heat dissipation unit 220; And
The light source unit includes a light source unit 210 that outputs light and a heat dissipation unit 220 that conducts and releases heat generated from the light source unit 210, and uses electric energy output from the power generation structure 100 to Self-powered lighting device using an electroactive polymer power generation structure comprising a lighting unit 200 for controlling the operation of (210). The method of claim 8,
The lighting unit 200 is a self-powered lighting device using an electroactive polymer power generation structure, characterized in that it further comprises an auxiliary power supply unit 230 for storing electrical energy output from the power generation structure (100).

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