JP2001082058A - Blind device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize solar energy by equipping a solar battery, a sheetlike polymer secondary battery for storing electric energy, and a sheetlike surface luminous body. SOLUTION: The respective slats 2 of a blind device 1 are constituted turnably and windably in before and behind, while the slats 2a are constituted of a three layer structure laminated with a battery 3, a sheetlike polymer secondary battery 4, and a sheetlike surface luminous body 5. When the solar battery 3 forms an angle so as to face a window, the luminous surface of the body 5 faces an indoor side to receive incident solar light onto the battery 3, and the incident sun light is converted into electric energy by the battery 3, to store electricity in the battery 4. Turning on a switch 7 transmits a signal to the respective slats 2 via an electric wire 6, to supply the electricity-stored electric energy to the body 5, and the body 5 emits light to irradiate an indoor, thereby effectively utilizing the solar energy being shading light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind device utilizing solar energy.

[0002]

2. Description of the Related Art A blind device is known as a device for preventing excessive sunlight from entering a room. Normally, a blind device is installed inside a window indoors, and switching between lighting and shading can be instantaneously performed by a user's operation.

For example, in a horizontal blind device, a large number of rotatable slats are arranged in a horizontal direction, and the amount of light can be adjusted by changing the rotation angle by a user's operation. When the slat is turned vertically, that is, when the window and the slat face are turned in parallel, the light is blocked, otherwise, the light is turned on.

[0004]

When light is blocked by a blind device, one side of the slat is always exposed to sunlight.
For example, if this surface is a light-shielding surface, the light-shielding surface receives a large amount of solar energy at the time of light shielding.

Accordingly, the present invention has been devised to effectively utilize the solar energy corresponding to the above-mentioned light-shielding surface of the blind device. The present invention converts the solar energy into electric energy, stores the electric energy, and uses it for indoor lighting. It is an object to provide a blind device to be used.

[0006]

In order to achieve the above-mentioned object, a blind device according to the present invention comprises a solar cell, a sheet-like polymer secondary battery for storing electric energy obtained by the solar cell, and a sheet-like polymer secondary battery. A sheet-shaped surface light-emitting body that emits light by voltage supply of the polymer secondary battery and illuminates the room.

In the blind device according to the present invention, the solar cell is arranged on the light-shielding surface of the slat, the solar energy is converted into electric energy when the light is shielded, and the sheet-shaped polymer secondary battery is charged. By applying a voltage to the sheet-shaped surface light emitter, the interior of the room is illuminated by effectively using solar energy.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a blind device according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of an essential part for explaining the structure of the blind device 1, and FIG. 2 is a cross-sectional view of one slat 2 of the blind device 1 cut in a direction perpendicular to a surface.

The blind device 1 of the present invention is a horizontal blind. As in the prior art, a large number of slats 2 are arranged horizontally, and a winding string (not shown) is connected to both ends of each slat 2 to turn each slat 2 back and forth. It is configured to be movable and rollable.

The slat 2 includes a solar cell 3 for converting solar energy into electric energy, and a sheet-shaped polymer secondary battery 4 for storing the electric energy converted by the solar cell 3.
And a sheet-shaped surface light-emitting body 5 that emits light when a voltage is supplied from the sheet-shaped polymer secondary battery 4 to form a three-layer structure.

Further, from each of the slats 2, an electric wire 6 for sending out a signal for controlling the light emission of the sheet-like surface light-emitting body 5 is derived, and each of the electric wires 6 controls the above-mentioned signal by a user's operation. Connected to the switch 7.

The three layers of the slat 2 are centered on the sheet-shaped polymer secondary battery 4, one surface of which is a non-light-receiving surface of the solar cell 3 and the other surface is a non-light-receiving surface of the sheet-shaped surface light emitter 5. The light emitting surface is bonded and formed.

The solar cell 3 directly converts light energy into electric energy. Solar cell 3 is amorphous
It is a silicon solar cell such as a silicon solar cell or a crystalline silicon solar cell, or a compound solar cell.

The solar cell 3 has a terminal for storing the converted electric energy in the sheet-shaped polymer secondary battery 4.

The sheet-shaped polymer secondary battery 4 is a secondary battery in which liquid leakage is eliminated by replacing the electrolyte of a conventional lithium ion secondary battery with a solid electrolyte made of a solid polymer. For this reason, there is no need to worry about liquid leakage, and the need for a metal can in which the electrolyte is sealed is eliminated, and safety is maintained only by sealing with a metal film. Thereby, the thickness of the battery is reduced, the shape is almost free, and the weight is reduced.

The sheet-like surface light emitter 5 is an organic EL (Electro Luminescence) element using an organic thin film for an electroluminescent layer. The organic EL element used is extremely thin, bendable, and emits multicolor light. The sheet-like surface light-emitting body 5 has terminals 21 and 2 connected to a control unit 22 described later.
A terminal for receiving a voltage supply from 1 'is provided.

The electric wire 6 is a metal wire that sends a signal from the switch 7 to a circuit for emitting a sheet-like surface light emitting body 5 described later incorporated in the slat 2, and the electric wire 6 derived from the circuit of each slat. Are connected to the switch 7.

The switch 7 is for switching between light emission and non-light emission of the sheet-like surface light emitter 5.

When the user wants to illuminate the room with the blind device 1, the user turns on the switch 7. Then, the signal is transmitted to each slat 2 via the electric wire 6, the sheet-shaped surface light-emitting body 5 emits light, and the room is illuminated. As described above, the voltage supply from the sheet-shaped polymer secondary battery 4 to the sheet-shaped surface light-emitting body 5 may be performed by a user's operation, or may be provided with a timer or the like. It may be provided with a control means or a sensor for starting the supply and a control means or the like for starting the voltage supply when the room reaches a predetermined luminance.

FIG. 3 is a plan view for explaining the main configuration of the sheet-shaped polymer secondary battery 4 employed in the embodiment of the present invention. FIG. 4 is a sectional view taken along the line AA of FIG. FIG.

The sheet-shaped polymer secondary battery 4 includes a sheet-shaped positive electrode 14 and a sheet-shaped negative electrode 15 via a solid electrolyte layer 11.
And the battery element formed by laminating them is sealed in the exterior film 16.

The solid electrolyte layer 11 includes a non-aqueous solvent, an electrolyte salt, and a solid electrolyte.

Examples of the non-aqueous solvent include ethylene carbonate, propylene carbonate, butylene carbonate, γ-butyl lactone, γ-valerolactone, diethoxyethane, tetrahydrofuran, 2-methyltetrahydrofuran, 1,3-dioxane, methyl acetate, propylene Methyl acid, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, 2,4-difluoroanisole, 2,6-difluoroanisole, 4-bromoveratrol and the like can be used alone or as a mixed solvent of two or more kinds.

As the electrolyte salt, for example, LiPF ₆ , L
iAsF ₆ , LiBF ₄ , LiClO ₄ , LiCF ₃ S
Lithium salts such as O ₃ , Li (CF ₃ SO ₂ ) ₂ N and LiC ₄ F ₉ SO ₃ can be used alone or in combination of two or more.

As the polymer material used for the solid electrolyte, polyvinylidene fluoride and a copolymer of polyvinylidene fluoride can be used. Examples of the copolymerizable monomer include hexafluoropropylene and tetrafluoroethylene. Can be.

As the polymer material used for the solid electrolyte, for example, polyacrylonitrile and a copolymer of polyacrylonitrile can be used. Examples of the copolymerizable monomer (vinyl monomer) include, for example, vinyl acetate, methyl methacrylate, butyl methacrylate,
Methyl acrylate, butyl acrylate, itaconic acid, hydrogenated methyl acrylate, hydrogenated ethyl acrylate,
Acrylamide, vinyl chloride, vinylidene fluoride, vinylidene chloride and the like can be mentioned. Further, acrylonitrile butadiene rubber, acrylonitrile butadiene styrene resin, acrylonitrile chloride polyethylene propylene diene styrene resin, acrylonitrile vinyl chloride resin, acrylonitrile methacrylate resin, acrylonitrile acrylate resin and the like can be used.

Further, as the polymer material used for the solid electrolyte, polyethylene oxide and a copolymer of polyethylene oxide can be used. Examples of the copolymerizable monomer include polypropylene oxide, methyl methacrylate, butyl methacrylate, methyl acrylate, butyl acrylate, and the like.

In addition, as the polymer material used for the solid electrolyte, polyether-modified siloxane and a copolymer thereof can be used.

As the polymer material used for the solid electrolyte, these can be used alone or in combination of two or more.

Next, the sheet-shaped positive electrode 14 is composed of a positive electrode current collector (not shown) and a positive electrode active material.

As the positive electrode current collector, for example, a metal foil such as an aluminum foil, a nickel foil, and a stainless steel foil can be used. These metal foils are preferably porous metal foils. By making the metal foil a porous metal foil, the adhesive strength between the current collector and the electrode layer can be increased. As such a porous metal foil, besides punching metal and expanded metal, a metal foil having a large number of openings formed by etching can be used.

As the positive electrode active material, Li _x MO ₂ (M is 1
More than one transition metal, preferably Co, Ni, or Mn
Where x depends on the state of charge and discharge of the battery and is 0.05
≤ x ≤ 1.12. ) Can be used. As a transition metal constituting the lithium composite oxide, Co, Ni, Mn, or the like is preferable. Specific examples of such a lithium composite oxide include LiCoO ₂ , LiNiO ₂ , and LiNi _y Co
_(1-y) O ₂ (however, 0 <y <1), LiMn ₂ O _{4 and the} like can be mentioned.

In order to form the sheet-shaped positive electrode 14,
These positive electrode active materials may be used as a mixture of two or more kinds. Also, when forming the sheet-shaped positive electrode 14,
A well-known conductive agent or binder may be contained.

The sheet-shaped positive electrode 14 is provided with a positive electrode terminal 12 having one end connected to a positive electrode current collector.

Subsequently, the sheet-like negative electrode 15 is composed of a negative electrode current collector (not shown) and a negative electrode active material.

As the negative electrode current collector, for example, a metal foil such as a copper foil, a nickel foil, and a stainless steel foil can be used. These metal foils are preferably porous metal foils. By making the metal foil a porous metal foil, the adhesive strength between the current collector and the electrode layer can be increased. As such a porous metal foil, besides punching metal and expanded metal, a metal foil having a large number of openings formed by etching can be used.

As the negative electrode active material, lithium is doped.
It is preferable to use a material that can be dedoped. Materials that can be doped / dedoped with lithium include:
For example, graphite, non-graphitizable carbon-based materials, easily graphitized carbon-based materials, and the like are available. Specific examples of such carbon materials include pyrolytic carbons, cokes, carbon blacks such as acetylene black, graphite, glassy carbon, activated carbon, carbon fibers, organic polymer fired bodies, and coffee bean fired bodies. ,
Examples include a fired cellulose body and a fired bamboo body.

In order to form the sheet-like negative electrode 15,
These negative electrode active materials may be used as a mixture of two or more kinds. Further, when forming the sheet-shaped negative electrode 15,
A well-known conductive agent or binder may be contained.

The sheet-shaped negative electrode 15 is provided with a negative electrode terminal 13 whose one end is connected to a negative electrode current collector.

The exterior film 16 comprises a sheet-like positive electrode 14,
This is a film for sealing a battery element composed of a laminate of the sheet-like negative electrode 15 and the solid electrolyte layer 11. Exterior film 1
After sealing the battery element 6, the peripheral edge of the battery element 6 is sealed by heat welding.

The positive terminal 12 and the negative terminal 13 are
It is sealed and led out parallel to the exterior film 16 in a form directly extended from the exterior film 16 to form a positive terminal bent portion 12a and a negative terminal bent portion 13a, respectively. When the blind device 1 is manufactured, the bent portion 12a of the positive electrode terminal and the bent portion 13a of the negative electrode terminal are bent approximately 180 degrees on the surface to be bonded to the sheet-shaped surface light-emitting body 5 and arranged.

Thus, the sheet-shaped polymer secondary battery 4 is
The derived positive electrode terminal 12 and negative electrode terminal 13 are arranged on the same plane as the surface to be bonded to the sheet-shaped surface light-emitting body 5, and are connected to terminals for voltage supply provided in the sheet-shaped surface light-emitting body 5, It is possible to supply voltage and current to the surface light-emitting body 5.

FIG. 5 is a plan view showing a state in which a circuit for emitting light from the sheet-shaped surface light emitting element 5 is provided on the sheet-shaped polymer secondary battery 4.

The circuit for emitting light from the sheet-shaped surface light emitter 5 includes a wire 6, terminals 21 and 21 ′ for supplying a voltage to the sheet-shaped surface light emitter 5, and a sheet-shaped surface light-emitting device based on an input from the switch 7. And a control unit 22 for controlling a voltage output to the light emitting body 5.

The control unit 22 controls the electric wire 6 for transmitting the light emission and non-light emission signals of the sheet-like surface light emitter 5 inputted by the switch 7.
The positive electrode terminal 12 and the negative electrode terminal 13 derived from the sheet-shaped polymer secondary battery 4 are connected to terminals 21 and 21 ′ for supplying a voltage to the sheet-shaped surface light-emitting body 5. The control unit 22 conducts the positive terminal 12 and the negative terminal 13 with the terminal 21 and the terminal 21 ′ in response to the light emission and non-light emission signals of the sheet-shaped surface light emitter 5 transmitted by the switch 7 via the electric wire 6, A voltage is supplied from the polymer secondary battery 4 to the sheet-shaped surface light-emitting body 5.

FIG. 6 is a longitudinal sectional view showing a state in which the blind device 1 is installed in a room and sunlight becomes illumination light.

The blind device 1 is installed so as to be hung near the window on the indoor side, similarly to the case where the blind device 1 is used for light shielding.

When the solar cell 3 of the slat 2 provided in the blind device 1 forms an angle so as to face the window,
The light-emitting surface of the sheet-shaped surface light emitter 5 faces the indoor side. The sunlight enters the solar cell 3 of the slat 2 of the blind device 1 installed indoors in the direction of arrow B through the window 25. The incident sunlight is converted into electric energy by the solar cell 3 and stored in the sheet-shaped polymer secondary battery 4. The stored electric energy is supplied to the sheet-like surface light-emitting body 5 by the user switching the switch 7 from the non-light-emitting state to the light-emitting state as necessary, and the sheet-like surface light-emitting body 5 is moved in the direction of arrow C. To illuminate the room.

It should be noted that the solar cell 3 of the slat 2 converts solar energy into electric energy as long as the solar light receiving surface is not parallel to the window 25 and as long as the sunlight is slightly irradiated on the light shielding surface. Then, it is stored in the sheet-shaped polymer secondary battery 4.

As described above, the blind device 1 is installed in the vicinity of the window in the room, turns the solar cell 3 side of each slat 2 in a direction in which sunlight can be received, and converts the solar energy of the received sunlight into electric energy. The light is stored in the sheet-shaped polymer secondary battery 4, and light is emitted by supplying a voltage to the sheet-shaped surface light-emitting body 5.

[0052]

As is clear from the above description, the blind device of the present invention converts solar energy, which is shaded, into electric energy, and uses the solar energy effectively for room lighting. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a principal part for describing a configuration of a blind device shown as an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the blind device, in which a slat is cut perpendicular to a surface.

FIG. 3 is a plan view for explaining a main part configuration of a sheet-shaped polymer secondary battery employed in the blind apparatus.

FIG. 4 shows a sheet-like polymer secondary battery shown in FIG.
FIG. 4 is a longitudinal sectional view cut along a line.

FIG. 5 is a plan view of the blind device when a circuit for emitting light from a sheet-shaped surface light emitter is provided on a sheet-shaped polymer secondary battery.

FIG. 6 is a longitudinal sectional view showing a state in which the blind device is installed indoors and sunlight becomes illumination light in the blind device.

[Explanation of symbols]

1 blind device, 2 slats, 3 solar cells, 4
Sheet-shaped polymer secondary battery, 5 sheet-shaped surface light emitter,
6 wires, 7 switches

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // H05B 33/14 H01L 31/04 R F21W 131: 301 F21Y 105: 00 (72) Inventor Toshikazu Yasuda 6-7-35 Kita-Shinagawa, Shinagawa-ku, Tokyo F-term in Sony Corporation (reference) 3K007 AB00 BA07 BB01 CA06 CB01 CC05 DA00 EB00 GA00 3K014 AA00 PC00 5F051 BA03 JA17 5H029 AJ00 AK03 AL06 AL07 AM03 AM04 AM06 AM07 AM16 BJ04 HJ

Claims (1)

[Claims] 1. A solar cell; a sheet-shaped polymer secondary battery for storing electric energy obtained by the solar cell; A blind device comprising a body.