JP2014067997A - Thin-film solar cell grating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin-film solar cell grating.SOLUTION: A thin-film solar cell grating includes two thin-film solar cell modules, or a transparent back sheet and a thin-film solar cell module. The thin-film solar cell modules generate electric power through photoelectric effect, and also have a plurality of transparent gratings formed on their top surfaces at equal intervals through laser cutting. The two thin-film solar cell modules having the gratings formed are stuck on each other or the one thin-film solar cell module is installed on one side of the transparent back sheet or between two transparent back sheets. Further, the thin-film solar cell grating has an external frame for fixing the thin-film solar cell module and the transparent back sheet. The thin-film solar cell grating can obtain a visual through-view operation for an object which moves at right angles to the direction of the transparent gratings of the thin-film solar cell grating and whose relative speed is equal to or larger than a fixed value, as well as having a power generating function.

Description

  The present invention relates to a thin-film solar cell grid, and more particularly to a thin-film solar cell grid that generates a fixed grid pattern using laser light, and an object whose movement direction is orthogonal to the grid and whose velocity value is a fixed value or more. On the other hand, the user can see the moving object through the thin film solar cell grid.

  At present, the international price of energy has been rising year by year, and each country has been devoted to research and application of solar cells in order to obtain inexpensive and environmentally friendly energy. Thin film solar cells can be manufactured using a variety of inexpensive materials such as glass, plastic, ceramics and graphite, and the thin film thickness that can generate the formed voltage is only a few millimeters It is. For this reason, the thin-film solar cell has the same light receiving area as the thin-film solar cell, and the thin-film solar cell can save a great deal of raw material usage, has excellent energy conversion efficiency, and has a planar structure. In addition, it can be made into a non-planar structure by taking advantage of flexibility, and can be combined with a building or become a part of a building.

  However, when a general thin-film solar cell itself is an opaque plane and is mounted on a building window, the user's line of sight is completely obstructed, so that the user is located on the other side of the thin-film solar cell. As a result, it becomes impossible to completely observe the film, and the range of use of the thin film solar cell on the building is limited. Since the loss of field of view is the most unacceptable for moving vehicle windows, conventional solar cells or thin-film solar cells were not compatible with moving vehicle windows. .

  The present invention has been made in view of the above-described problems of the prior art, and the purpose of the present invention is on the other side of the thin-film solar cell grid when the user sees through the thin-film solar cell grid. An object of the present invention is to provide a thin film solar cell grid capable of observing an object moving in a direction orthogonal to a pattern.

  In accordance with the purpose of the present invention, the present invention provides a thin film solar cell grid comprising two transparent backsheets and a thin film solar cell module. The thin-film solar cell module generates electric power by a photoelectric effect, and the surface of the thin-film solar cell module is formed with a plurality of transparent grids having equal width intervals through laser cutting. It is installed between transparent back sheets.

  More preferably, the width of the transparent grating is 0.5 mm or more, and the ratio of the total width of the plurality of transparent gratings to the width of the thin-film solar cell module is 5% or more.

  More preferably, the thin film solar cell grid of the present invention further includes a metal outer frame attached to the outer edge after the thin film solar cell module and the two transparent backsheets are joined to form the interface layer.

  More preferably, when the thin film solar cell grid is mounted on an object, the plurality of transparent grids are orthogonal to the direction of motion of the object or the direction of motion of an external object that moves relative to the object.

  More preferably, when the relative velocity value between the object to which the thin film solar cell grid is mounted and the external object is 0.5 km / hr or more, the thin film solar cell grid has a visual see-through function.

  According to the object of the present invention, a thin film solar cell grid further comprising a transparent backsheet and a thin film solar cell module is provided. The thin-film solar cell module generates electric power by a photoelectric effect, and the surface of the thin-film solar cell module is formed with a plurality of transparent grids having equal width intervals through laser cutting, and the thin-film solar cell module And the transparent back sheet.

  More preferably, the thin film solar cell grid of the present invention further includes a metal outer frame attached to an outer edge of the thin film solar cell module and the transparent backsheet that are bonded to each other.

  In accordance with the objects of the present invention, a thin film solar cell grid is further provided comprising two thin film solar cell modules. Those thin-film solar cell modules generate electric power by the photoelectric effect, and the surface of each thin-film solar cell module is formed with a plurality of transparent grids with equal width intervals through laser cutting, and two thin-film solar cells The modules are bonded together and the transparent grid between them is aligned with each other.

  More preferably, the thin film solar cell grid of the present invention further includes a metal outer frame attached to the outer edge of the bonded thin film solar cell module.

  As explained above, the thin film solar cell grid according to the present invention has one or more of the following advantages.

  (1) When this thin-film solar cell grid is mounted on a static building in a manner in which a grid pattern formed by a plurality of transparent grids obtained by laser cutting is orthogonal to a horizontal plane, It is possible to provide a user in the building with the ability to observe an external object that moves horizontally with respect to the building at a speed of 0.5 km / hr or higher.

  (2) When this thin-film solar cell grid is mounted on a vehicle in which the plurality of transparent grids are movable in a manner perpendicular to the horizontal plane, and the vehicle moving speed exceeds 0.5 km / hr, the user In addition, it is possible to provide the capability of observing all external static environments and arbitrary horizontally moving objects having a relative velocity of 0.5 km / hr or more.

It is a 1st schematic diagram which shows 1st Example of the thin film solar cell grating | lattice of this invention. It is a 2nd schematic diagram which shows 1st Example of the thin film solar cell grating | lattice of this invention. It is a 3rd schematic diagram which shows 1st Example of the thin film solar cell grating | lattice of this invention. It is a schematic diagram which shows 2nd Example of the thin film solar cell grating | lattice of this invention. It is a schematic diagram which shows 3rd Example of the thin film solar cell grating | lattice of this invention. It is an application conceptual diagram of the Example of the thin film solar cell grating | lattice of this invention.

For a more complete understanding of the present invention, the technical features, contents and advantages of the present invention, and the effects achieved by the present invention will be described in detail below in the form of an embodiment with reference to the accompanying drawings. Is done. It should be noted that the drawings used are merely for the purpose of assisting illustration or specification, and are not restricted to those that are proportional to the original size after the implementation of the present invention or that are precisely arranged. Therefore, it should be explained in advance that the illustrated drawings should not be construed in the proportions and arrangement relationships of the accompanying drawings, and are not intended to limit the scope of the present invention in practice. I want.
<First embodiment>

  FIG. 1 is a first schematic view showing a first embodiment of a thin film solar cell grid of a perspective dynamic image of the present invention. In FIG. 1, the thin film solar cell grid 1 is configured to include a thin film solar cell module 11, two transparent back sheets 12 and 13, and a metal outer frame 14. This thin-film solar cell grid 1 may be of any type or type of design, and its outer shape may be formed in a two-dimensional planar structure. More preferably, the thin-film solar cell module 11 uses a laser beam to remove the equal-width parallel strips so that a plurality of transparent lattices 111 (see FIG. 2) with equal-width intervals form a lattice pattern. Formed.

  In the above, the thin film solar cell module 11 is generally widely used as a thin film solar cell for power generation. In the present invention, a light-transmitting fixed lattice pattern is formed by removing a partial area of the thin-film solar cell module 11 mainly using laser light. As described above, this lattice pattern is formed by a plurality of transparent lattices 111 cut. Furthermore, as shown in FIG. 1, the sandwich structure is formed by sandwiching the laser-processed thin film solar cell module 11 between the transparent back sheets 12 and 13. Furthermore, the object of module fixation and structural reinforcement is achieved by attaching the metal outer frame to the outer edge of the interface layer of the transparent backsheet.

  FIG. 2 is a second schematic diagram showing a first embodiment of the thin-film solar cell grid of the present invention. In FIG. 2, the width of each transparent grating 111 of the thin film solar cell module 11 is a value of 0.5 mm or more, and the ratio of the total width of the plurality of transparent gratings 111 to the width of the thin film solar cell module 11 is about 5%. It is the above value. This achieves the purpose of accommodating sufficient incident light.

Referring to FIG. 3, this figure is a third schematic view showing a first embodiment of the thin film solar cell grid of the present invention. The transparent back sheet 12, the thin film solar cell module 11, the transparent back sheet 13, and the metal outer frame 14 are shown. Used to display the side surface of the relative mounting position.
<Second embodiment>

FIG. 4 is a schematic view showing a second embodiment of the thin film solar cell grid of the present invention, and shows the relative mounting positions of the thin film solar cell module 11, the transparent back sheet 13 and the metal outer frame 14. Used for display. Among these, the thin film solar cell module 11 is bonded on the single transparent back sheet 13. The thin-film solar cell grid may not have the metal outer frame 14 attached thereto.
<Third embodiment>

  FIG. 5 is a schematic diagram showing a third embodiment of the thin-film solar cell grid of the present invention. In this embodiment, only two thin film solar cell modules 11 and a metal outer frame 14 are used as compared with the first and second embodiments. Moreover, the transparent back sheet is not used. Among them, the two thin-film solar cell modules 11 are bonded to each other, and the transparent gratings of the two thin-film solar cell modules 11 are aligned with each other. In this embodiment, the metal outer frame 14 need not be used. The above is merely an example listing and is not limited to this.

  Generally speaking, an image reflected in the human eye remains on the visual retina as an afterimage for a very short time (1/24 seconds). Create an illusion. By using this principle, a movie captures the light and shadow that changes from moment to moment, and after these images are shot on film, it can quickly reproduce 24 frames of still images on the screen every second. The projected visual effect of the spectator produces an effect that is perceived as a continuous motion by the latter image being immediately connected while the former image has not yet disappeared. This is the principle of so-called “retinal afterimage”.

  In view of the principle of the retinal afterimage, the present invention, when the thin-film solar cell grid 1 having a plurality of transparent gratings 111 formed using laser cutting is mounted on an object, the plurality of transparent gratings 111 are: The direction of motion of the object is orthogonal to the direction of motion of the object to be observed. Further, in this case, as shown in FIG. 6, when the relative velocity value between the object on which the thin film solar cell grid 1 is mounted and the external object or the environment is 0.5 km / hr or more, the thin film solar cell The grating 1 can obtain an effect that approximates transparency. As a result, the user can observe the external object or environment through the transparent grating 111.

  In summary, the thin film solar cell grid of the perspective dynamic image of the present invention is mainly formed by peeling a partial area of the thin film solar cell module of the original whole area with a laser beam, thereby forming a transparent lattice having a specific pattern. Is done. Subsequently, a thin film solar cell grid is formed by combining it with a back and forth back sheet and a metal outer frame. When mounting it on an object, in addition to the power generation function, the user moves so that the relative hourly speed located on the back of the grid is 0.5 km / hr or more and the direction is orthogonal to the grid pattern. The object can be seen through. In this way, the application range of the thin film solar cell can be increased.

  Summarizing the above description, the present invention has not been easily conceived by a person skilled in the art who has achieved the operational effects to be surely promoted while breaking through the prior art and who is familiar with the technical field. Furthermore, since the present invention has never been published before filing, and its inventive step and practicality clearly satisfy the requirements for patent application, a patent application is submitted in accordance with the provisions of the Patent Law. In order to encourage your invention, we ask that you make a decision on whether to patent the invention of this application after examination.

1: Thin-film solar cell grid 11: Thin-film solar cell module 111: Transparent grid 12: Front transparent backsheet 13: Rear transparent backsheet 14: Metal outer frame

Claims (15)

A thin film solar cell grid comprising two transparent backsheets and a thin film solar cell module installed between the two transparent backsheets,
The thin film solar cell module generates electric power by a photoelectric effect, and a plurality of transparent lattices having equal width intervals are formed on the surface of the thin film solar cell module through laser cutting. Solar cell grid.   2. The thin film according to claim 1, wherein a width of the transparent grating is 0.5 mm or more and a ratio of a total width of the plurality of transparent gratings to a width of the thin film solar cell module is 5% or more. Solar cell grid.   The thin film solar cell according to claim 2, further comprising a metal outer frame attached to an outer edge after the thin film solar cell module and the two transparent backsheets are joined to form an interface layer. lattice.   When the thin-film solar cell grid is mounted on an object, the plurality of transparent grids are orthogonal to the movement direction of the object or the movement direction of an external object that moves relative to the object. The thin-film solar cell grid according to claim 3, characterized in that   When the relative velocity value between the object on which the thin film solar cell grid is mounted and an external object is 0.5 km / hr or more, the thin film solar cell grid has a visual see-through function. The thin film solar cell grid according to claim 4. A thin film solar cell grid comprising a transparent back sheet and a thin film solar cell module bonded to the transparent back sheet,
The thin film solar cell module generates electric power by a photoelectric effect, and a plurality of transparent lattices having equal width intervals are formed on the surface of the thin film solar cell module through laser cutting. Solar cell grid.   The thin film according to claim 6, wherein a width of the transparent grating is 0.5 mm or more, and a ratio of a total width of the plurality of transparent gratings to a width of the thin film solar cell module is 5% or more. Solar cell grid.   The thin film solar cell grid according to claim 7, further comprising a metal outer frame attached to an outer edge bonded to the thin film solar cell module and the transparent backsheet.   When the thin-film solar cell grid is mounted on an object, the plurality of transparent grids are orthogonal to the movement direction of the object or the movement direction of an external object that moves relative to the object. 9. A thin film solar cell grid according to claim 8, characterized in that   When the relative velocity value between the object on which the thin film solar cell grid is mounted and an external object is 0.5 km / hr or more, the thin film solar cell grid has a visual see-through function. The thin film solar cell grid according to claim 9. A thin film solar cell grid comprising two thin film solar cell modules,
The two thin film solar cell modules generate electric power by a photoelectric effect, and a plurality of transparent lattices having equal width intervals are formed on the surface of each thin film solar cell module through laser cutting, and the two A thin-film solar cell grid, wherein the thin-film solar cell modules are bonded to each other, and the plurality of transparent lattices between the thin-film solar cell modules are aligned with each other.   The thin film according to claim 11, wherein the width of the transparent lattice is 0.5 mm or more, and the ratio of the total width of the plurality of transparent lattices to the width of the thin film solar cell module is 5% or more. Solar cell grid.   The thin film solar cell grid according to claim 12, further comprising a metal outer frame attached to an outer edge of the thin film solar cell module bonded.   When the thin-film solar cell grid is mounted on an object, the plurality of transparent grids are orthogonal to the movement direction of the object or the movement direction of an external object that moves relative to the object. 14. A thin film solar cell grid according to claim 13, characterized in that When the relative velocity value between the object on which the thin film solar cell grid is mounted and an external object is 0.5 km / hr or more, the thin film solar cell grid has a visual see-through function. The thin film solar cell grid according to claim 14.

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