JP2009295836A - Solar cell integrating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar cell integrating device which is unitized without impairing the performance of a solar cell panel to largely reduce an installation area. <P>SOLUTION: A module of the solar cell panel is sandwiched by a penetrating resin, and integrated for installation. This module utilizes such a property that if a face of the penetrating resin of a laminating portion of the penetrating resin and the panel is cut, a sunbeam is received by the side of the penetrating resin, and the beam is made to be conductive to the face of the penetrating resin from the cutting portion to irradiate the module. A transmittance of the beam in the penetrating resin is about 96% in an acrylic plate, and therefore the sunbeam cannot be utilized at 100%, but necessary electric power can be obtained by increasing and decreasing a laminating amount. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention is a solar cell integrated device in which the unit area is greatly reduced without impairing the performance of the solar cell panel. The solar cell integrated device is installed and used according to applications such as single unit use or multiple use.

The cells used in solar panels and their peripheral technologies have evolved over the years, and have gradually become widespread while improving photoelectric conversion efficiency, establishing a role as fossil fuel alternative energy. On the other hand, the installation method has remained in the form of receiving light flatly since the appearance of the solar cell panel. This has the disadvantage that a large installation area is required when high power is to be obtained. In addition, there is a problem that the roof is burdened when used in a general household.
As measures for improvement, support hardware, devise of the mount, and weight reduction have been made.
However, all of these methods are based on the assumption that the solar cell panel is installed horizontally, and no consideration was given to integration.

Patent documents 1 to 3 describe a solar power generation system, an installation method, and an integrated device.
JP 2000-156518 A JP-A-2005-223164 JP2007-1746

In the “solar power generation system” disclosed in Patent Document 1, a first solar power generation panel that generates power with light in the short wavelength region of sunlight, a concentrator made of a material having an infrared absorption function, and It consists mainly of a second photovoltaic power generation panel that generates power with light in a wavelength region that is not used for power generation in the first photovoltaic power generation panel, and the light transmitted through the first photovoltaic power generation panel is transmitted by the collector. The light is condensed and irradiated to the second photovoltaic power generation panel to generate power.

Furthermore, there are two types of solar power generation panels: a first solar power generation panel that generates power using light in the short wavelength region of sunlight and a second solar power generation panel that generates power using light in a wavelength region that is not used for power generation in the first solar power generation panel. It is composed of layers and is installed in a direction with good solar efficiency throughout the year. This aims to reduce the installation area and improve power generation efficiency.

What is disclosed here is an integration method of solar cells composed of two layers, which is designed to improve the amount of power generation per unit area by devising the wavelength of sunlight to irradiate, rather than the conventional installation method. It is described that power generation can be obtained with high efficiency.

In the “photovoltaic power generation system and its installation method” disclosed in Patent Document 2, the inclination angle that maximizes the sum of the annual power generation by surface light reception and the annual power generation by backside light reception using a double-sided light receiving solar cell. It is supposed to be installed at.

The annual power generation with this method is 120% (changes depending on the location) for solar cells with double-sided solar cell installation compared to single-sided light receiving south-facing installation with optimum inclination, and a photovoltaic power generation facility with little installation orientation dependency is realized. it can. This makes it possible to effectively use the rooftop of a building or the like.

In addition, conventional solar cells generally use a single-sided light receiving module that generates electricity by receiving light from the light receiving surface at an optimum south-facing inclination angle. In this method, annual installation azimuth is shifted from the south. The amount of power generation becomes small, and when it faces the east or west, it decreases to about 70% of that at the south. Therefore, when installing solar cells on the rooftop of a building, etc., the orientation of the building, etc. is restricted, and the installation orientation deviates from the south. Is also going to be disadvantageous.

When this double-sided light receiving solar cell is applied to a snowfall area, the inclination angle that can prevent snow accumulation on the solar cell module is about 60 °, but the optimum inclination angle is equal to or greater than this angle, It is said that it is possible to obtain an annual power generation amount of about 125% for a single-sided light receiving solar cell while preventing snow accumulation on the solar cell.

After describing the double-sided light receiving solar cell and its installation method as described above, it is described that the installation occupation area can be reduced and the power generation amount can be increased.

In the “photovoltaic power generation system and installation method” disclosed in Patent Document 3, a large number of long solar cell modules are installed in a solar cell module capable of reducing the installation space without increasing the device cost. It is supposed to provide a stacked storage device.

Furthermore, in the conventional optimum installation of single-sided light receiving solar cells (for example, 30 °), annual power generation decreases when the installation direction deviates from the south. It is supposed to be installed at an inclination angle that maximizes the sum of annual power generation.

As a result, the annual power generation amount of the device is 120% (changes depending on the location) compared to the single-side light receiving south-facing installation with optimum inclination, and a photovoltaic power generation facility having almost no installation orientation dependency can be realized. This makes it possible to effectively use the rooftop of a building or the like. Further, in the solar power generation system including the double-sided light receiving solar cell module, the fence-integrated type or the handrail-integrated double-sided light receiving module is vertically installed around the facility location.

In this stacked storage device, a plurality of stages are provided in the vertical direction in a casing having a carry-in / out port for carrying in or carrying out the solar cell module, and the two-stage upper and lower stages of the solar cell module and the storage device body having a tube shelf. The storage device body and the loading / unloading device can be moved relative to each other by holding various devices, and the loading / unloading device enters the storage device body with the solar cell module mounted on the loading / unloading device. It is what makes it possible to leave.

As described above, it is described that a solar cell module is vertically installed in a two-stage stacked storage device to reduce the installation area and improve the power generation efficiency.

However, the installation area that can be reduced in any of the devices of Patent Documents 1 to 3 is about ½ of the conventional one, and the estimated power generation amount is only about twice as much as the maximum. It is hard to say that this has significantly improved efficiency.

The present invention uses a solar cell integrated device to stratify a solar cell panel, which has conventionally been constituted by a surface, by sandwiching it alternately with a transparent resin so as to apply sunlight to each module photosensitive surface via the transparent resin. The purpose is to generate electricity.

Here, for convenience, the solar cell used will be described as a module of a film type amorphous solar cell. The film type is extremely thin and is optimal for use. In addition, it is optimal to use no metal frame, fixtures, or heat insulation to block solar heat. Further, since it is used while being sandwiched, no glass is used to protect the photosensitive surface, which does not adhere to dirt and protects the photosensitive surface. The transparent resin used for the light-emitting plate is explained here using an acrylic plate, also called organic glass, as a representative material.

The power generation element side of the single-sided power generation module is used as the front, and the heat sink is attached to the acrylic surface whose surface has been cut for irradiation, and the heat sink serving as the ground is attached to the back side, and the module back surface is attached to the heat release plate. Acrylic board is attached to the front of this module. The unit is repeatedly formed in the above order. In one unit thus formed, several tens or more conventional modules are stored as required. This greatly reduces the installation area. Each output terminal of the module is connected by a terminal block provided in the fixing base of the apparatus, and a total output terminal is provided in a part of the fixing base.

Of the above, a part of the heat sink that also serves as ground is exposed to the outside air as a heat radiating blade of this device, exposed to the outside air to dissipate heat, and grounded by a ground terminal provided in a part of the fixed base. Has a characteristic to play a role.

The present invention is a device that can be completed in one unit as described above. The units can be installed in parallel, connected in series, connected and connected, and the total output power can be easily increased / decreased. In addition, the installation area is significantly reduced compared to the conventional flat installation of solar cells, and the size can be easily increased.

In the present invention, a transparent resin is used for the light-emitting plate. A module is attached to the surface of a typical transparent resin acrylic plate or a sensitized solar cell made of chlorophyll or the like is applied in the form of a paint, but the adhesive surface is cut for lighting.
In addition, chamfering is performed on the other sides except for the bottom to improve the lighting efficiency.
The processing of the light-emitting plate surface is a small prism shape, triangular pyramid shape, lens shape, chevron groove shape, so that when the module is sandwiched and accumulated, it stands vertically on the ground and the side corresponding to the cross section of the acrylic plate faces in the sun direction Sunlight entering from the side shines perpendicularly to the module surface from the cut surface, and the module generates electricity to generate electricity. In addition, a film-type solar cell is attached to an acrylic plate that has been surface-cut as a light-emitting plate, or a chlorophyll solar cell having a photoelectric conversion efficiency of only about 3% is applied, or it is applied in the state of paint and laver together with acrylic. By winding it in a winding shape, it can be formed in a cylindrical shape without increasing the installation area required for flat installation, and the amount of power generation equal to or higher than that of flat installation can be easily obtained. In particular, since a chlorophyll solar cell itself is translucent and transmissive, sufficient electric power can be obtained by making up an excessive amount to compensate for the low photoelectric conversion efficiency. In addition, a transparent acrylic resin anaerobic adhesive is applied to the cut recess so that the surface of the light emitting plate and the cut portion are the same, and the concave portion serves as a lens and also serves as an adhesive with the film type solar cell. . The high portion of the hollow to be cut has the same area and shape as the cell, and the shape of the hollow portion is an equilateral mountain, a triangular pyramid, a quadrangular pyramid, a polygonal weight, or a cone. Thus, since the light passing through the transmissive resin is irradiated at right angles to the cell, the present device has a feature of exhibiting performance as a solar cell integrated device.

The solar cell integrated device of the present invention is connected to and held by an acrylic resin cylindrical round bar whose surface is cut with respect to a bonded acrylic plate, a solar cell panel and a heat sink that also serves as a ground, and a light-emitting plate It shines on.

This cylindrical round bar penetrates the unit, then both ends are processed into a hemisphere, sunlight is received and cut, the acrylic plate surface is cut from the round bar surface that has been cut, and the module is attached to the sun. It also serves as a transmission device.

The unit is installed so that the accumulation layer can be seen vertically. In addition, the side where the accumulation layer can be seen is installed in the east-west direction in the country, and the tip of the daylighting device is installed in the north-south direction to cope with the change in the position of the sun swinging north-south depending on the season. The basic installation direction is the east-west direction where the shape of the side of the accumulation layer can be seen in the direction of sunset and sunrise when the sun is directly above and during the south and middle of Equinox. The lower part of the unit is a fixed base of the apparatus, but is movable for fine adjustment in the direction of rising and falling slightly depending on the installation location.

The solar cell integrated device covers the entire unit with heat-resistant glass and is filled with nitrogen gas or in a vacuum state so that solar heat does not accumulate inside the main body and prevents condensation and softening of the acrylic plate, peeling of the acrylic plate and module It has features corresponding to prevention.

The solar cell integrated device of the present invention can be installed at any location without being restricted by the installation location regardless of whether it is in the water or in the soil by applying waterproofing to the outer peripheral portion thereof. This is due to the fact that the light incident on the module is made possible by indirect light through a transparent resin. It has the characteristic of generating electricity by transmitting sunlight from a remote place from this device through a sunlight lighting device, an optical fiber, an optical duct, and the like.

The surface of the light-emitting plate used in the solar cell integrated device of the present invention is subjected to various shapes of cutting. The surface of the acrylic plate is cut with laser light so that sunlight is emitted at a right angle to the cells in accordance with the shape and arrangement direction of the cells used in the module. The back and front surfaces are cut by inclining the thickness direction of the plate to be used, and the light emission efficiency improves as the surface is finely cut.

Conventional solar panels could not be effective unless a large installation area was taken regardless of the facilities such as detached houses, condominiums, buildings, etc. However, this device solved these problems.

It eliminates the need for a frame frame and installation stand for conventional solar panel installation, and has dramatically improved cost effectiveness, including expertise in installation work.

In the case of the roof type, the installation angle with respect to the sun is greatly limited.

By indirectly irradiating sunlight with a daylighting device, an optical fiber, etc., this device can be installed in the soil, in a culvert, or in a vacuum without selecting an installation location. Applicable to underwater by taking measures against water leakage.

One of the installation conditions is that the average wind speed of the wind power generator is 6 m or more per year, but most of them do not perform the power generation function when the average wind speed is 6 m or less per year or a breeze. In addition, there are cases where the blades of the rotating rotor fall, and there are cases where it is subject to lawsuits such as damage compensation for the power generation shortage and the blade falling accident. In addition, there are cases in which the movement against the installation from the nature conservation group becomes symmetrical due to the bird colliding and dying due to the rotation of the blade. Therefore, this device is installed in the immediate vicinity of the wind turbine generator. There are many cases where wind turbines are installed on the seaside or small hills, and there are many cases where there are idle areas around the installation site. Therefore, the blades are removed and the generator is lowered to install the daylighting device, or the support hardware for attaching the daylighting device is attached to the top of the column for the wind power generator, and the daylighting device is attached to it, and the solar cell integrated device is installed at the bottom of the column tower To do. At the same time when the morning sun rises, the sunlight collected is applied to the solar cell integrated device through a window opened in a part of the tower. Then, the electric power is obtained by rotating the motor with the obtained electric power and turning the rotor of the wind power generator through the drive device. Since the motor of the wind power generator generates electricity even at a low speed, the motor driven by the solar battery is small, but it is adjusted by the gear ratio of the transmission and connected to the wind power generator with a chain, belt, gear, etc. for practical use.

There is no need for solar panels that are widely spread outside the ship, such as space stations and satellites, reducing the risk of damage and destruction caused by collisions of space debris and suspended matter. This contributes to reducing the risk of crew outboard repair activities caused by damage.

Hereinafter, the best mode of the present invention will be specifically described with reference to the drawings.

FIG. 1 is an external perspective view of the present invention. 1 is a heat resistant tempered glass. Reference numeral 2 denotes a stacking unit of the solar cell stacking apparatus. 3 is a light emission plate. Reference numeral 4 denotes an adhesive surface of the light-emitting plate 3. Reference numeral 5 denotes a bolt for fixing the bonding. A daylighting device 6 also serves to fix the bonding of the devices. Reference numeral 7 denotes a fixed base of the solar cell integrated device. Reference numeral 13 denotes an output terminal of the unit. 28 is a dummy plug for preventing electric shock.

FIG. 2 is a development view of one unit of the present invention.

FIG. 3 is an exploded perspective view showing details of the shape and mounting position of the transparent resin light emitting plate 3, the module 8, and the heat radiating plate 9 of the present invention. 10 is an output terminal from the module. Reference numeral 14 denotes a light-emitting plate cutting surface. 15 is a fixing bolt through hole, and 16 is a daylighting device through hole.

FIG. 4 shows a fixed base incorporating an internal connection terminal block 11 for connecting the output terminals 10 from the respective modules. Reference numeral 12 denotes a ground terminal, and reference numeral 13 denotes a total output terminal as a unit, which is a power outlet connected by a connecting terminal.

FIG. 5 is an overall schematic diagram of a photovoltaic power generation system using this apparatus. Reference numeral 17 denotes a charge controller. Built-in DC switch to prevent backflow of current Built-in DC switch prevents backflow of current and sudden overcurrent. Reference numeral 18 denotes a charger. Reference numeral 19 denotes an AC / DC inverter. The generated DC power is converted to AC and the entire system operation is automatically managed. Reference numeral 20 denotes a power conditioner. Reference numeral 21 denotes a switching device that is connected to a power meter for receiving supply from an electric power company and buys and sells the electric power generated by this device.

FIG. 6 is Example 1 of this apparatus for a wind power generator. In this figure, the blades of the wind power generator 27 are removed, the wind power generator 27 is lowered and installed on the ground, the motor 25 is rotated by the power obtained by the solar cell integrated device 24, and the wind power generator 27 is rotated by the power to generate electricity. It is something to be made. Reference numeral 22 denotes a daylighting device. 23 is an opening for sunlight irradiation. Sunlight is irradiated to the light emission plate 3 of the solar cell integrated device 24 with an optical fiber, a reflecting mirror, or the like. Reference numeral 25 denotes a wind power generator driving motor for driving the wind power generator 27. A transmission 26 transmits the rotation of the driving motor to the wind power generator 27 and drives the wind power generator 27 by a gear, a belt or a chain. After sunset, the motor is rotated by the electric power of the charger 18 to generate electricity.

FIG. 7 shows a second embodiment of the present apparatus for a wind power generator. In this figure, the solar cell integrated device 24 is installed and used without taking down the wind power generator 27. In the solar lighting device 22, power is sold when a suitable wind force is obtained in a place where the daylight condition is good all day. In addition, during the operation of wind power generators, power is sold using existing facilities, including at night.

FIG. 8 shows a third embodiment in which the present apparatus is installed in parallel on the building roof. Usually, various devices such as an elevated water tank 32, a power receiving / transforming facility 33, an emergency power supply 34, an air conditioner outdoor unit 35, etc. are installed on the roof of the building, and in some cases, a solar cell panel 36 is installed. In any case, the installation space for this device is secured.

FIG. 9 shows a winding shape of the solar cell integrated device 24. The module is wound on the module adhesion surface 4 connected in part with the daylighting device 6 or the sensitized battery is applied.

FIG. 10 shows an apparatus in which the device is spherical and is installed above the support 30 to increase the sunshine time at the daylighting place.

FIG. 11 is a detailed cross-sectional view of the light emitting plate 3, the cutting surface 14, the module 8, and the heat radiating plate 9, which are materials bonded to the solar cell integrated portion of the present apparatus.

It is an external perspective view. FIG. 2 is a development view of FIG. 1. It is the detail of a solar cell integration part. Details of the fixed base. 1 is an overall schematic view of a photovoltaic power generation system. Example 1. This is Example 2. Example 3 It is a winding shape of a solar cell integrated device. It is the spherical shape of a solar cell integrated device. It is sectional drawing of a bonding surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat-resistant tempered glass 2 Solar cell integration part 3 Light emission board 4 Light emission board adhesion surface 5 Fixing bolt of apparatus 6 Daylighting device 7 Fixing base 8 Module 9 Heat sink 10 Module output terminal 11 Output terminal terminal block 12 Ground terminal 13 Unit Output terminal 14 Light-emitting plate cutting surface 15 Fixing bolt through-hole 16 Daylighting device through-hole 17 Charge controller 18 Charger 19 DC / AC inverter 20 Power conditioner 21 Power purchase / selling switching device 22 External lighting device 23 For sunlight Opening 24 Solar cell integrated device 25 Motor for driving wind power generator 26 Transmission 27 Wind power generator 28 Electric shock prevention dummy plug 30 Pillar for integrated device 31 Optical duct 32 Elevated water tank 33 Power receiving / transforming equipment 34 Emergency power supply device 35 Air conditioner outdoor unit 36 Solar panel 37 Transparent acrylic resin Temper adhesive

Claims (6)

The present invention is a solar cell integrated device in which a solar cell panel is housed in a cubic integrated device, and either a single-sided or double-sided solar cell module or a film-type solar cell and a dye-sensitized solar cell is formed of a transparent resin. The solar cell module is outdoors by reducing the occupied area of the plane required for the installation of the conventional solar cell panel by stacking or coating alternately with the light emitting plate, and by irradiating with the light emitting plate constituting the integrated device. Protective frames, fixing brackets and surface protective glass, and heat insulation, which were conventionally essential components when manufacturing solar cell modules to be used, are not necessary because cleaning does not adhere to dirt without being exposed to the atmosphere. No need for materials, etc., simplifying the manufacturing process, contributing to reducing the number of parts that hold solar cells and improving cost effectiveness The light-emitting plate that makes up the device is made of a transparent resin, so that the earth as a countermeasure against current leakage from the module can be functioned simply by converging and attaching to the heat-dissipating fins sandwiched between the modules. Just have good features. In the above integrated device, a double-sided or single-sided solar cell module and a light-emitting plate for irradiating sunlight on the surface of the film type solar cell are attached and used for power generation. In the device, the module and the light-emitting plate are alternated according to the set power generation amount. A solar cell integrated device having a feature corresponding to an increase in size by forming a unit unit by connecting and connecting the device between output terminals by connecting them closely and configuring them as one unit. The light emitting plate of the integrated device is obtained by cutting a module attaching portion of one or both side surfaces of a rectangular, square, rectangular, or polygonal transparent resin, and the cutting surface shape is prismatic or triangular pyramid. This is a shape that is shaped like a cone, lenticular cone or chevron, and uses the property that light emitted from the daylighting device and natural light from the side excluding the bottom of the transparent resin is emitted to the cut surface and radiated to the solar cell. The light on the side of the light-emitting plate that is in close contact with the module is radiated at right angles to the module surface and starts power generation. The cutting surface shape is processed with the same area as the cell of the module, and the irradiation efficiency is maximized. In addition, a film-type solar cell is attached using a plastic transparent resin, or a dye-sensitized solar cell with transparency is attached, or it is applied in the form of a paint to form a spiral. Solar cell integrated device having features also power greatly reduces electromotive footprint same. The transparent resin, solar cell panel, and heat sink that doubles as the ground in the solar cell integrated device are connected by penetrating a cylindrical round bar whose surface is machined, and this cylindrical round bar penetrates the unit. The unit is also used as a device that transmits sunlight to the surface where the module is stretched by cutting the transparent resin from the surface of the round bar that has been processed by hemispherical processing of the front and rear tips and received and cut by sunlight. Is installed so that the integrated layer where the light-emitting plate and the module are bonded is vertical, and the surface where the integrated layer is visible is oriented in the east-west direction, and the bonded side is installed so that it is north-south. Responds to changes in the position of the sun swaying from north to south depending on the season, the fixed base on which the unit is mounted is movable, and the installation direction is finely adjusted. The entire unit is surrounded by heat-resistant glass and filled with nitrogen gas. Solar cell integrated device having the features of preventing change and aging and degradation of the output voltage affected by the outside air temperature by shutting off the thermal conduction in the Luke vacuum. The solar cell integrated device described above shines on the module surface not only in direct sunlight but also in indirect sunlight, so it can be installed anywhere on the building roof, warehouse, ground surface, soil, underwater, vacuum, and remotely from this device. A solar cell integrated device characterized by generating electricity by transmitting sunlight through a device, an optical fiber, an optical duct, a reflecting mirror, a lens and the like. Of the above, the cutting of the surface of the light-emitting plate has the same area as the module, and the incident light from the cutting surface is nearly perpendicular to the module along the arrangement direction and shape of the cells used in the module so that the light emission efficiency is improved. Apply laser processing from the front and back to the center of the thickness of the transparent resin that is the light-emitting plate, and apply a transparent acrylic resin anaerobic adhesive and attach the module, or directly to the transparent acrylic resin anaerobic adhesive The cell is attached and the light-emitting plate itself becomes a module, which is laminated and laminated to form a solar cell integrated device.