JP6483984B2 - Solar cell module, wall structure, and house - Google Patents

Description

  The present invention mainly relates to a solar cell module, a wall surface structure, and a house that form part of a facade. The present invention particularly relates to a solar cell module that can be used as a part or all of a wall structure such as a handrail such as a window or a veranda or a wall surface of a building.

In recent years, solar cell modules have attracted attention as energy sources with low environmental impact.
This solar cell module is a photoelectric conversion device capable of converting light energy into electric energy.
The solar cell panel includes a photoelectric conversion element having a transparent electrode layer, a back electrode layer, and a photoelectric conversion layer made of a semiconductor junction or the like sandwiched between the two electrode layers. In this solar cell panel, carriers (electrons and holes) generated by irradiating the photoelectric conversion layer with light can be collected by the electrode layer and taken out to an external circuit.

Conventional solar cell panels are installed in a posture that is parallel or slightly inclined with respect to the ground in order to ensure a sufficient incident area for sunlight. Therefore, in the living environment, the installation position of the solar cell module has been limited to a flat ground or a roof of a building.
However, since the area of a roof in a general building is limited, there is a problem that if a solar cell is attached to the entire surface of the roof, it cannot be added. Therefore, with the widespread use of solar cell panels, a search for new solar cell panel installation locations has been made.

  Therefore, Patent Document 1 discloses a structure in which a solar cell module is used as a part of a balcony of a building.

JP 2014-43677 A

However, in the case of a conventional solar cell module, when a plurality of solar cell modules are laid out in a planar shape to form a part of a wall surface such as a bag, any part of the wall surface is uniformly the same design, There was a problem that it would be a nasty design.
In recent years, the design of buildings has been improved, and variations of facades have become abundant. For this reason, there is a demand among building purchasers to select a unique facade that suits their own preferences. That is, even when the solar cell module is provided as a part of the facade of the building, a highly original design such as a design that can be integrated with the building or a design that attracts passersby is required.

  Then, in view of the above-mentioned problem, it aims at providing the solar cell module of the new design which has not existed before, a wall surface structure, and a house.

The invention according to claim 1 for solving the above-described problem includes a first translucent substrate, a second translucent substrate, and between the first translucent substrate and the second translucent substrate. In the solar cell module comprising a photoelectric conversion element, the photoelectric conversion element can convert light energy into electric energy when irradiated with light, and has a plurality of decorative members having translucency, the plurality The decorative member is a plate member that is separate from the first light-transmitting substrate, and is spread on the first light-transmitting substrate in a planar shape. Among the plurality of decorative members, There are a plurality of types of decorative members having different hazes. Among the plurality of types of decorative members, two types of decorative members having different thicknesses are arranged adjacent to each other, Of the decorative members, one decorative member has an uneven surface on one side. It is and the other of the decorative member is a solar cell module, wherein the one surface is smooth.
The present invention provides a solar cell module comprising: a first light-transmitting substrate; a second light-transmitting substrate; and a photoelectric conversion element between the first light-transmitting substrate and the second light-transmitting substrate. The photoelectric conversion element is capable of converting light energy into electrical energy when irradiated with light, and transmits a part of the light, and has a plurality of decorative members having translucency, The plurality of decorative members are related to a solar cell module arranged in a planar shape on the first translucent substrate.

  Here, “translucency” refers to a function of transmitting at least part of light, and specifically refers to a light transmittance of 30% to 100%. That is, even if it is a board | substrate with which the glare-proof process was performed, if 30% or more of light is permeate | transmitted, it corresponds to the translucency of this specification.

According to the configuration of the present invention, the first translucent substrate, the photoelectric conversion element, and the second translucent substrate all transmit light, and when viewed from the first translucent substrate side, the first translucent substrate. This is a see-through solar cell module in which the second translucent substrate side is seen through from the optical substrate side. Therefore, for example, lighting in a building is possible even when it is attached to the wall surface of the building.
According to the structure of this invention, the some decorative member is distribute | arranged on the 1st translucent board | substrate in planar shape.
For example, when the first translucent substrate is viewed from the front, when a plurality of decorative members are scattered and arranged in a planar shape, the portion where the decorative member is arranged and the decorative member are not provided The user's view is different depending on the site. Therefore, it becomes a solar cell module in which the unevenness is emphasized compared to a conventional simple plate-like solar cell module.
In addition, for example, when the first translucent substrate is viewed from the front, when a plurality of decorative members are spread while being spaced slightly, there is a gap between the adjacent decorative members, Compared to a conventional simple plate-shaped solar cell module, the solar cell module has an enhanced outline of each decorative member.
Furthermore, for example, when the first translucent substrate is viewed from the front, when a plurality of decorative members are spread without gaps, a line by an edge enters a boundary portion between adjacent decorative members, It becomes a solar cell module in which the outline of each decorative member can be seen.
Thus, according to the structure of this invention, it becomes a solar cell module of the novel design which escaped from the mere plate-like design of the conventional solar cell by the way of laying a decorative member.

In the invention related to the present invention , at least two types of decorative members having different hazes are present in the plurality of decorative members, and the plurality of decorative members are formed in a planar shape on the first translucent substrate. paved, the two kinds of decorative members are solar battery modules that are arranged so as to be adjacent to each other.

Here, “haze” represents the ratio of diffused light to total transmitted light.
The term “laying” here includes not only the case where the floor is spread without a gap, but also the case where the floor is spread with a slight gap.

According to the configuration of this, a plurality of decorative members spread all over the first transparent substrate, the haze of the two adjacent decorative members are different, the light on the photoelectric conversion element between the decorative member through which light passes The way of transmission is different. That is, when light enters from the orthogonal direction with respect to the outer surface of the decorative member, the optical path to the photoelectric conversion element differs depending on the incident decorative member.
Specifically, of the two adjacent decorative members, the decorative member with a small haze transmits little light and travels almost straight to the photoelectric conversion element, and the decorative member with a large haze diffuses light and photoelectric Light spreads through the conversion element.
Therefore, the incident light on the light receiving surface of the solar cell module is appropriately dispersed and transmitted to the photoelectric conversion element, and it becomes difficult to form a hot spot.
Further, according to this configuration, since the plurality of decorative members are spread and the two adjacent decorative members have different hazes, the appearance of the solar cell module by the user is different for each decorative member.
For example, a decorative member with a small haze has a small diffused light component, so that the light is transmitted directly and can be seen clearly. On the other hand, a decorative member with a large haze has a large diffused light component and thus appears white and blurred. Looks like.
Therefore, the shape of each decorative member can be clarified, and a solar cell module with a novel design that has never been achieved can be obtained.

In the above-described invention, of the two types of decorative members, one of the decorative members has a smooth surface when viewed macroscopically, and has fine irregularities formed on the surface when viewed microscopically. and the other of cosmetic member is a surface is smooth when viewed macroscopically, and, surface even when viewed microscopically may I smooth der.

According to the configuration of this, by forming fine surface irregularities for one of the decorative member, to adjust the haze may be different appearance and other decorative members.
Further, according to the configuration of this, since the fine surface irregularities for one of the decorative member is formed, component of diffused light is increased, the reflected light from the photoelectric conversion element side is missing from one of the decorative member Hateful. That is, since a certain amount of incident light can be enclosed inside, the amount of photoelectric conversion in the photoelectric conversion element can be increased, and the power generation efficiency can be improved as compared with the conventional see-through solar cell module.

The invention described in claim 2 is the solar cell module according to claim 1 , wherein the other decorative member protrudes from the one decorative member.
The present invention relates to the fact that the two types of decorative members have different thicknesses, and the other decorative member protrudes from one decorative member .

According to said structure, in two types of adjacent decorative members, since the height from a 1st translucent board | substrate differs, respectively, a level | step difference is formed between adjacent decorative members, and the three-dimensional layout with depth It becomes.
Moreover, according to said structure, the reflected light from a photoelectric conversion element side is a low-profile decorative member by forming a fine unevenness | corrugation in a low-profile decorative member among the adjacent decorative members, for example. In this case, the light is less likely to escape to the outside, so that the light confinement effect is high and the power generation efficiency can be improved as compared with the conventional case.
The invention according to claim 3 is the solar cell module according to claim 1 or 2, wherein the decorative member has a thickness of 10 mm or more and 50 mm or less.
The invention according to claim 4 is the solar cell module according to any one of claims 1 to 3, wherein the haze of the decorative member is 0.1% or more and 0.5% or less.
The invention according to claim 5 is characterized in that the thickness of the one decorative member is 1.1 to 2.0 times the thickness of the other decorative member. It is a solar cell module of a crab.
The invention according to claim 6 is the solar cell module according to any one of claims 1 to 5, wherein the photoelectric conversion element is laminated on a support substrate to constitute a thin film solar cell. is there.

The invention according to claim 7 includes a support substrate and a frame member, the support substrate supports the photoelectric conversion element, and includes a first translucent substrate and a photoelectric conversion element. The frame member is interposed between the first light-transmitting substrate and the second light-transmitting substrate, and presses the first light-transmitting substrate toward the support substrate. It is a solar cell module in any one of Claims 1-6 characterized by these.

  According to the structure of this invention, since the frame member is pressing the 1st translucent board | substrate to the support substrate side, the 1st translucent board | substrate is hard to separate with respect to a support substrate, and integrated strength is high.

The invention according to claim 8 is the solar cell module according to claim 7 , wherein the first translucent substrate is made of acrylic resin, and the support substrate is made of glass.

In general, a glass substrate and an acrylic substrate are poorly adhered when an adhesive is used, and thus are rarely used by being bonded together.
On the other hand, according to the configuration of the present invention, the first transparent substrate made of acrylic resin and the support substrate made of glass are fixed in close proximity by the frame member. Even if it is a relationship between a glass member and an acrylic member, the separation is difficult.

The invention according to claim 9 includes a frame member that sandwiches the first light-transmitting substrate and the second light-transmitting substrate, and the plurality of decorative members include one of the frame members when viewed from the front. a solar cell module according to any one of claims 1 to 8, characterized in that superimposed decorative member is a decorative member overlapping the part is present.

  According to the configuration of the present invention, the superimposed decorative member overlaps with a part of the frame member, and a part of the frame member is hidden by the decorative member. Therefore, the frame member is difficult to see from the front, and the design is high.

The invention described in claim 10 is a solar comprising a first light-transmitting substrate, a second light-transmitting substrate, and a photoelectric conversion element between the first light-transmitting substrate and the second light-transmitting substrate. In the battery module, the photoelectric conversion element can convert light energy into electrical energy when irradiated with light, and has a plurality of decorative members having translucency, and the plurality of decorative members are the first decorative member. When arranged in a plane on the light-transmitting substrate, the frame member sandwiches the first light-transmitting substrate and the second light-transmitting substrate, and the plurality of decorative members have a front view. There is a superimposed decorative member that is a decorative member that overlaps a part of the frame member, and the superimposed decorative member is bonded to the first translucent substrate and, when viewed from the front, A solar cell module characterized by being disposed across a frame member from a light substrate Is Lumpur.
That is, according to the present invention, the superimposed decorative member is bonded to the first light-transmitting substrate, and is disposed across the frame member from the first light-transmitting substrate when viewed from the front.

  According to the configuration of the present invention, since the superimposing decorative member is held by the first translucent substrate, for example, even if the adhesion between the frame member and the superimposing decorative member is poor, the superimposing decorative member can be stably installed. It is.

The invention according to claim 11 includes a first light-transmitting substrate, a second light-transmitting substrate, and a photoelectric conversion element between the first light-transmitting substrate and the second light-transmitting substrate. In the battery module, the photoelectric conversion element can convert light energy into electrical energy when irradiated with light, and has a plurality of decorative members having translucency, and the plurality of decorative members are the first decorative member. The light-transmitting substrate is arranged in a planar shape, and has a frame member that sandwiches the first light-transmitting substrate and the second light-transmitting substrate, and the first light-transmitting substrate has a notch. The frame member is fitted in the notch, and a part of the outer main surface of the first light-transmitting substrate and a part of the outer surface of the frame member are surfaces when the photoelectric conversion element is used as a reference. It is a solar cell module characterized by being one.
The present invention includes a frame member that sandwiches the first light-transmitting substrate and the second light-transmitting substrate, the first light-transmitting substrate includes a cutout portion, and the frame member includes the cutout portion. The outer main surface of the first translucent substrate and a part of the outer surface of the frame member are flush with each other when the photoelectric conversion element is used as a reference.

  According to the structure of this invention, since there is no level | step difference between a frame member and a 1st translucent board | substrate, a decorative member can be provided so that it may overlap with a frame member easily.

According to a twelfth aspect of the present invention, there is provided a solar including a first light transmitting substrate, a second light transmitting substrate, and a photoelectric conversion element between the first light transmitting substrate and the second light transmitting substrate. In the battery module, the photoelectric conversion element can convert light energy into electrical energy when irradiated with light, and has a plurality of decorative members having translucency, and the plurality of decorative members are the first decorative member. A plurality of second decorative members that are arranged in a planar shape on the light-transmitting substrate and have a light-transmitting property, and the plurality of second decorative members are formed in a planar shape on the second light-transmitting substrate. When the main surface of the first light-transmitting substrate is viewed from the front, the decorative member overlaps the second decorative member, and the outer peripheral edge of the decorative member is flush with the outer peripheral edge of the second decorative member. It is a solar cell module characterized by having done.
That is, the present invention includes a plurality of second decorative members having translucency, and the plurality of second decorative members are spread in a planar shape on the second light transmissive substrate, When the main surface of the conductive substrate is viewed from the front, the decorative member overlaps the second decorative member, and the outer peripheral edge of the decorative member coincides with the outer peripheral edge of the second decorative member.

According to the configuration of the present invention, when viewed from a direction orthogonal to the main surface of the first light transmissive substrate, the outer shape of the decorative member positioned in front of the first light transmissive substrate and the second light transmissive substrate. Since the outer shape of the second decorative member located on the back side of the conductive substrate is the same, the boundary portion between the adjacent second decorative members on the second light transmissive substrate is prevented from being seen through the decorative member. it can. Therefore, it becomes a solar cell module with high designability.
According to a thirteenth aspect of the present invention, the photoelectric conversion element transmits a part of light when irradiated with light, and when viewed from the first light transmitting substrate side, the first light transmitting light is transmitted. The solar cell module according to any one of claims 1 to 12 , wherein the solar cell module is a see-through solar cell module that is visible through the second light-transmitting substrate side from the conductive substrate side.

The invention according to claim 14, a solar cell module according to any one of claims 1 to 13, in the solar cell module, which form part of a wall of a building in both the other solar cell module, wherein the decorative member Is a solar cell module characterized in that it is installed across its own solar cell module and other adjacent solar cell modules.

  According to the configuration of the present invention, when the solar cell module is spread and the wall surface of the building is formed, the boundary between the adjacent solar cell modules can be hidden by the decorative member, so that the user can hardly see the boundary between the solar cell modules. It can be shown to the user as if it were a continuous wall.

The invention of claim 15 is a wall structure formed by using the solar cell module according to any one of claims 7 to 11, are formed by laying a plurality of the solar cell module in a plane The wall surface structure includes a fixing member that fixes the solar cell module in a vertical posture, and the fixing member covers an exposed portion of the frame member from the decorative member.

According to the structure of this invention, a solar cell module is fixed by a fixing member so that the main surface may face the direction which cross | intersects with respect to a perpendicular direction. In other words, the main surface of the solar cell module is oriented toward users, passersby, and the like.
According to the configuration of the present invention, since the frame member that is visible to the user or passerby is hidden by the fixing member, the frame member is difficult to see from the user or passerby, and the design is high.

The invention described in claim 16 includes a first translucent substrate, a second translucent substrate, and a photoelectric conversion element between the first translucent substrate and the second translucent substrate. In the battery module, the photoelectric conversion element can convert light energy into electric energy when irradiated with light, and has a plurality of decorative members having translucency, and the plurality of decorative members are In the wall surface structure formed by using the solar cell modules arranged in a plane on the first light-transmitting substrate, the wall structure formed by laying a plurality of the solar cell modules in a plane, A wall surface structure comprising: a fixing member that fixes the solar cell module in a vertical position; and a shielding unit that shields light, and the fixing member is covered by the shielding unit when viewed from the front. It is.
The present invention relates to a wall structure formed using the above solar cell module, fixed in a wall structure formed by laying a plurality of the solar cell module in a planar shape, the solar cell module in a vertical position a fixing member for having a shielding means for shielding light, when viewed from the front, the fixing member is associated with the wall surface structure that covered by the shielding means.

According to said structure, since the fixing member which fixes a solar cell module to a vertical attitude | position is covered with the shielding means, a fixing member is not conspicuous from a user or a passerby, and becomes a wall surface structure excellent in design property.

The invention described in claim 17 includes a first light-transmitting substrate, a second light-transmitting substrate, and a photoelectric conversion element between the first light-transmitting substrate and the second light-transmitting substrate. In the battery module, the photoelectric conversion element can convert light energy into electric energy when irradiated with light, and has a plurality of decorative members having translucency, and the plurality of decorative members are In the wall surface structure formed by using the solar cell modules arranged in a plane on the first light-transmitting substrate, the wall structure formed by laying a plurality of the solar cell modules in a plane, The solar cell module has a fixing member that fixes the solar cell module in a vertical position, and the plurality of decorative members include a shielding decorative member that is a decorative member that overlaps a part of the fixing member when viewed from the front. Is a wall surface structure characterized by
The present invention relates to a wall structure formed using the above solar cell module, fixed in a wall structure formed by laying a plurality of the solar cell module in a planar shape, the solar cell module in a vertical position to have a fixed member, in said plurality of decorative members, said cosmetic member overlaps a portion of the shielding decorative member of the fixing member is associated with the wall surface structure that exists when viewed in front.

According to said structure, since a fixing member is hidden by the shielding decorative member which served as the normal decorative member, it can make it difficult to see a fixing member and can also suppress the increase in a number of parts.

The invention according to claim 18 is a house comprising the wall surface structure according to any one of claims 15 to 17 .

  According to the structure of this invention, it becomes a house which has the wall surface excellent in the designability.

  According to the solar cell module and the wall surface structure of the present invention, the solar cell module, the wall surface structure, and the house have a new design that has not been conventionally achieved.

It is a perspective view which represents typically the installation state of the solar cell module of 1st Embodiment of this invention. It is the perspective view seen from the front side of the solar cell module of FIG. It is the perspective view which looked at the solar cell module of FIG. 2 from the back surface side. It is a disassembled perspective view of the solar cell module of FIG. It is a disassembled perspective view of the principal part of FIG. It is a longitudinal cross-sectional view of the solar cell module of FIG. It is explanatory drawing of the solar cell module of FIG. 2, (a) is a front view, (b) is a rear view. It is a partially broken perspective view showing the frame member of FIG. FIG. 5 is a cross-sectional perspective view of the solar cell module of FIG. 4, with the first decorative member and the second decorative member omitted. It is a perspective view which represents typically the installation state of the solar cell module of 2nd Embodiment of this invention. It is a perspective view of the wall surface structure of FIG. It is a front view of the wall surface structure of FIG. It is a disassembled perspective view of the wall surface structure of FIG. 11, and is the figure which decomposed | disassembled the scattering sheet | seat and the decorative board from the fixed pillar. It is a disassembled perspective view of the solar cell module of FIG. It is a longitudinal cross-sectional view of the solar cell module of FIG. It is explanatory drawing of the solar cell module of FIG. 11, (a) is a front view, (b) is a rear view. It is a partially broken perspective view of the fixed pillar of FIG. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is a perspective view at the time of attaching a fixed pillar to a floor surface. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is a perspective view at the time of attaching a 1st step | paragraph solar cell module to a fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is a perspective view at the time of inserting the wiring of the 1st step | paragraph solar cell module into the insertion hole in the fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is the perspective view seen from the back side at the time of fixing the 1st step | paragraph solar cell module to a fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is a perspective view at the time of attaching a 2nd step | paragraph solar cell module to a fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is a partially broken perspective view at the time of inserting the wiring of a 2nd step | paragraph solar cell module into the insertion hole of a 1st step in-process solar cell module to a fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is the perspective view seen from the back side at the time of fixing a 2nd step | paragraph solar cell module to a fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 11, and is a perspective view at the time of forming a shielding part in a fixed pillar. It is a front view of the wall surface structure of 3rd Embodiment of this invention. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 26, and is a perspective view at the time of attaching the 1st step | paragraph solar cell module to a fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 26, and is a perspective view at the time of attaching a 2nd step | paragraph solar cell module to a fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 26, and is a perspective view at the time of sticking a decorative member with respect to the solar cell module fixed to the fixed pillar. It is explanatory drawing of the assembly procedure of the wall surface structure of FIG. 26, and is a longitudinal cross-sectional view showing the condition after sticking a decorative member with respect to the solar cell module fixed to the fixed pillar. It is a perspective view of the principal part of the wall surface structure of 4th Embodiment of this invention. FIG. 32 is a transverse cross-sectional view of the fixed column of FIG. 31 and its surroundings. It is a cross-sectional view of the fixed pillar of the wall surface structure of other embodiment of this invention, and its periphery. It is a cross-sectional view of the fixed pillar of the wall surface structure of other embodiment of this invention, and its periphery. It is a perspective view of the solar cell module of other embodiments of the present invention. It is a perspective view of the other solar cell module of this invention. It is a front view of the wall surface structure of other embodiment of this invention. It is a front view of the solar cell module of other embodiment of this invention, (a) represents the case where a triangular-shaped decorative member is used, (b) represents the case where a hexagonal decorative member is used.

Hereinafter, embodiments of the present invention will be described in detail.
In the following description, unless otherwise specified, the vertical positional relationship of the solar cell module 1 will be described based on the normal installation posture shown in FIG. That is, the posture in which the solar cell module 1 is erected is used as a reference. Further, the inside and outside are defined based on the photoelectric conversion element 11.

  As shown in FIG. 1, the solar cell module 1 of the first embodiment of the present invention is mainly used as a building facade, and forms a wall surface of a building or a part of a wall surface of a fence. It is a member. Specifically, the solar cell module 1 of the present embodiment is a wall surface forming member that forms part of the wall surface of the house 80.

  As can be seen from FIGS. 4 and 6, the solar cell module 1 includes a solar cell panel 2, a first light transmissive substrate 3, a second light transmissive substrate 5, a first decorative member 6, and a second decorative member. A member 7 and a frame member 8 are provided.

The solar cell panel 2 is a solar cell panel in which a so-called thin film solar cell is mounted, and includes a solar cell having a multilayer structure in which a plurality of thin films are stacked.
As can be seen from FIG. 6, the solar cell panel 2 is obtained by laminating a photoelectric conversion element 11 on a support substrate 10 and sealing the photoelectric conversion element 11 with a sealing member 12.

The support substrate 10 is a substrate that supports the photoelectric conversion element 11 and is an insulating substrate having translucency.
The support substrate 10 is not particularly limited as long as it has translucency and insulating properties. For example, a glass or acrylic resin substrate can be used.
In this embodiment, the support substrate 10 employs a glass substrate from the viewpoint of translucency.

  The photoelectric conversion element 11 is a part capable of converting light energy into electric energy by irradiating light, and the photoelectric conversion layer 16 is sandwiched between the positive electrode layer 15 and the negative electrode layer 17 as shown in the enlarged view of FIG. Is.

The sealing member 12 is a translucent member that seals the photoelectric conversion element 11.
The sealing member 12 is not particularly limited as long as it has translucency and insulation. For example, a glass or acrylic resin substrate or EVA resin (ethylene / vinyl acetate copolymer resin) is used. A transparent resin film or the like can be used.
In this embodiment, the sealing member 12 is formed by covering the photoelectric conversion element 11 with an EVA resin film and further covering the outside with a glass substrate.

The solar cell panel 2 of the present embodiment is a so-called see-through solar cell panel, and the back side can be visually recognized from the front side of the solar cell panel 2.
The solar cell panel 2 has an opening (not shown) for transmitting light to the photoelectric conversion element 11.
The aperture ratio of the photoelectric conversion element 11 when the solar battery panel 2 is viewed in plan is preferably 30% or more and 60% or less.
Moreover, it is preferable that the solar cell panel 2 of this embodiment has a light transmittance of 30% or more and 40% or less when light is irradiated on one main surface.
In the solar cell panel 2 of this embodiment, the aperture ratio of the photoelectric conversion element 11 is 50%, and the light transmittance is about 35%.

Moreover, the solar cell panel 2 is circular or polygonal when viewed from the front, and has a continuous edge.
As shown in FIG. 4, the solar cell panel 2 of the present embodiment has a quadrangular shape when viewed from the front. Specifically, the solar cell panel 2 is rectangular and has two opposing two sides. And the solar cell panel 2 has the positive electrode wiring 13 and the negative electrode wiring 14 overhanging from one side via the terminal box which is not illustrated.

The wirings 13 and 14 are wirings for extracting electric energy from the photoelectric conversion element 11 to the outside, and extend in directions away from each other.
The positive electrode wiring 13 is a wiring electrically connected to the positive electrode layer 15 (see the enlarged view of FIG. 6) of the photoelectric conversion element 11.
The negative electrode wiring 14 is a wiring electrically connected to the negative electrode layer 17 (see the enlarged view of FIG. 6) of the photoelectric conversion element 11.

As can be read from FIGS. 5 and 6, the first light-transmissive substrate 3 is a support substrate that supports the first decorative member 6, and is a light-transmitting insulating substrate.
The 1st translucent board | substrate 3 will not be specifically limited if it has translucency and insulation, For example, the board | substrate made from an acrylic resin etc. can be used.
The first light transmissive substrate 3 of the present embodiment employs an acrylic substrate.

  The 1st translucent board | substrate 3 is a member which covers the outer side of the solar cell panel 2, and is carrying out substantially the same shape as the solar cell panel 2 when it looks at the front. That is, the first translucent substrate 3 has a rectangular shape.

  As can be read from FIGS. 5 and 6, the first translucent substrate 3 has a notch 20 (20 a, 20b, 20c, 20d).

The notch 20 is a notch in which a corner of the first light-transmissive substrate 3 is notched, and extends along the edge.
As shown in FIG. 6, the notch 20 has a shape along the outer surface of the front cover 40 of the frame member 8 to be described later, and the front cover 40 can be attached.

The 2nd translucent board | substrate 5 is a support substrate which supports the 2nd decoration member 7, and is an insulated substrate with translucency.
The 2nd translucent board | substrate 5 will not be specifically limited if it has translucency and insulation, For example, the board | substrates made from glass, an acrylic resin, etc. can be used.
The second light transmissive substrate 5 of the present embodiment employs a glass substrate.

The second translucent substrate 5 has substantially the same shape as the first translucent substrate 3 as shown in FIG. 4, and is notched along each side 23 when viewed in plan. 21 (21a, 21b, 21c, 21d).
The cutout portion 21 is a portion corresponding to the cutout portion 20 of the first translucent substrate 3, and is a cutout in which corner portions of the second translucent substrate 5 are cut out along the edge. It extends.
As shown in FIG. 6, the notch 21 has a shape along the outer surface of the rear cover 42 of the frame member 8 described later, and the rear cover 42 can be attached.

The first decorative member 6 is a member that enhances the decorative property of the solar cell module 1, and as shown in FIG. 2, a plurality of types of first decorative members 30 and 31 (decorative members) on the first translucent substrate 3. Are formed by spreading a plurality of sheets in a plane.
The first decorative member 6 of the present embodiment is formed by laying a plurality of two types of first decorative members 30 and 31 having different haze and dimensions.

  The first decorative member 30 is a translucent plate material, and is a rectangular plate material. Specifically, the 1st decorative member 30 is formed with the board | plate material made from an acrylic resin, and the uneven | corrugated process is given to the surface of at least one side. That is, as shown in FIG. 6, the first decorative member 30 has a smooth surface when viewed macroscopically, and has fine irregularities 35 formed on the surface when viewed microscopically.

One surface of the first decorative member 30 has an anti-glare function added by the unevenness 35, and light hardly reflects on the surface. That is, the first decorative member 30 is an antiglare decorative member whose surface has been subjected to an antiglare treatment.
The thickness of the decorative member 30 is preferably 10 mm or greater and 50 mm or less.
If it is this range, decorativeness can be ensured, utilizing the advantage (for example, thin) that the solar cell panel 2 is a thin film solar cell panel.
The method for forming the unevenness 35 is not particularly limited, and for example, the unevenness 35 can be formed by blasting.

The first decorative member 31 is a translucent plate material, and is a rectangular plate material. Specifically, the first decorative member 31 is formed of an acrylic resin plate material.
Unlike the first decorative member 30 described above, the first decorative member 31 is not subjected to uneven processing on the surface. That is, the first decorative member 31 has a smooth surface when viewed macroscopically and a smooth surface even when viewed microscopically.
From another viewpoint, the first decorative member 31 has a higher light transmittance than the first decorative member 30. That is, the first decorative member 30 and the first decorative member 31 have different appearances when viewed from the front side. In the first decorative member 30, the back surface side appears white and cloudy, In the 1 decorative member 31, the back side can be seen through. That is, it can be said that the first decorative member 30 is a translucent decorative plate, while the first decorative member 31 is a transparent decorative member.
The haze of the first decorative member 31 is preferably 0.05% or more and 1% or less, and more preferably 0.1% or more and 0.5% or less.
On the other hand, the haze of the first decorative member 30 having the concavo-convex 35 is preferably 1.5 to 5 times the haze of the first decorative member 31.
Within this range, it is possible to make a clear difference in appearance between the first decorative member 30 and the first decorative member 31.

As shown in FIG. 3, the second decorative member 7 is a member that enhances the decorative property of the solar cell module 1, and is formed by laying a plurality of types of second decorative members 32 and 33, similar to the first decorative member 6. It is what is done.
Similar to the first decorative member 6, the second decorative member 7 of the present embodiment is formed by laying a plurality of two types of second decorative members 32 and 33 having different haze and dimensions.

The second decorative member 32 is a translucent plate material, and is a rectangular plate material. Specifically, the 2nd decorative member 32 is formed with the board | plate material made from an acrylic resin, and the uneven | corrugated process is given to the one-side surface.
That is, as shown in FIG. 6, the second decorative member 32 has a smooth surface when viewed macroscopically, and has fine irregularities 36 formed on the surface when viewed microscopically.
On one surface of the second decorative member 32, an antiglare function is added by the unevenness 36, and light is hardly reflected on the surface. That is, the second decorative member 32 is an antiglare decorative member having a surface subjected to an antiglare treatment.
The thickness of the second decorative member 32 is preferably 10 mm or greater and 50 mm or less.
The method for forming the unevenness 36 is not particularly limited, and for example, the unevenness 36 can be formed by blasting.

The second decorative member 33 is a translucent plate material, and is a rectangular plate material. Specifically, the second decorative member 33 is formed of a plate material made of acrylic resin.
Unlike the second decorative member 32, the second decorative member 33 is not subjected to uneven processing. That is, the second decorative member 33 has a smooth surface when viewed macroscopically, and a smooth surface even when viewed microscopically.
From another point of view, the second decorative member 33 has a higher light transmittance than the second decorative member 32. That is, the second decorative member 32 and the second decorative member 33 have different appearances when viewed from the front side, and the second decorative member 32 appears to be cloudy in white on the back side, whereas In the two decorative members 33, the back side is seen through. That is, the second decorative member 32 is a translucent decorative plate, whereas the second decorative member 33 is a transparent decorative member. The thickness of the second decorative member 33 is the same as that of the second decorative member 32. The thickness of the second decorative member 33 is preferably 1.1 times to 2.0 times the thickness of the second decorative member 32.

As shown in FIG. 6, the frame member 8 is a member that protects the outer peripheral surface of the solar cell panel 2 and that makes the first light-transmissive substrate 3 and the second light-transmissive substrate 5 close to each other. It is.
The frame member 8 is a member having a “B” shape when viewed from the front so as to be read from FIGS. 7 and 8.
The frame member 8 protects the upper cover portion 60 that protects the upper end portion of the solar cell panel 2, the lower cover portion 61 that protects the lower end portion of the solar cell panel 2, and the left and right end portions of the solar cell panel 2. It has the left side cover part 62 and the right side cover part 63, and these are continuing in the shape of a square ring.

  Further, as shown in FIG. 8, the frame member 8 has a “U” cross-sectional shape, and includes a front cover 40, an end cover 41, and a rear cover 42.

As shown in FIG. 6, the front cover portion 40 is a portion that covers a part of the front surface (outer surface) of the first translucent substrate 3 in the front-rear direction Z.
As can be read from FIGS. 4 and 6, the front cover 40 extends along the sides 22 a to 22 d of the first translucent substrate 3 when viewed from the front. Specifically, the front cover 40 extends in a quadrangular ring shape along the edge of the first translucent substrate 3.
The thickness of the front cover 40 is substantially equal to the notch depth of the notch portion 20 of the first light-transmitting substrate 3 (the depth of the notch portion 20 in the thickness direction Z of the first light-transmitting substrate 3). Thus, the width of the front cover portion 40 is substantially the same as the notch width of the notch portion 20 of the first translucent substrate 3.

The end surface covering portion 41 is a part that covers the end surface of the first light-transmitting substrate 3 and the end surface of the second light-transmitting substrate 5.
As can be seen from FIGS. 7 and 8, the end surface cover 41 is formed of an upper surface forming portion 47, a lower surface forming portion 48, a left surface forming portion 49, and a right surface forming portion 50.

As can be read from FIGS. 7 and 8, the upper surface forming portion 47 is a portion that forms the upper end surface of the solar cell module 1 when viewed from the front, and the lower surface forming portion 48 is the lower end surface of the solar cell module 1. It is a site | part which forms.
The left surface forming portion 49 is a portion that forms the left end surface of the solar cell module 1, and the right surface forming portion 50 is a portion that forms the right end surface of the solar cell module 1.

As shown in FIG. 8, the upper surface forming portion 47 and the lower surface forming portion 48 have insertion holes 45 and 46 through which the wirings 13 and 14 can be inserted.
The insertion hole 45 is a through hole formed in the vicinity of the left end portion of the upper surface forming portion 47. That is, the insertion hole 45 extends in and out of the upper surface forming portion 47 of the end surface covering portion 41 in the vertical direction Y.

  The insertion hole 46 is a through hole that is paired with the insertion hole 45 and is formed in the vicinity of the left end portion of the lower surface forming portion 48. That is, the insertion hole 45 extends in and out of the end surface covering portion 41 in the vertical direction Y. The insertion hole 46 is arranged at a position corresponding to the insertion hole 45 and the vertical direction Y, and overlaps the insertion hole 45 and the projection surface in the vertical direction Y.

As shown in FIG. 6, the rear surface covering portion 42 is a portion that covers a part of the outer surface of the second light-transmissive substrate 5.
The rear cover 42 extends along each side 23 of the second translucent substrate 5 when viewed from the back, and specifically, the front cover 40 can be read from FIG. A rectangular ring extends along the edge of the optical substrate 5.

Here, paying attention to the positional relationship of each part of the frame member 8, the front cover 40 rises inward from the front end of the end cover 41 as shown in FIG. The portion 42 rises inward from the rear side end portion of the end surface covering portion 41. That is, the front cover 40 and the rear cover 42 face each other with a predetermined interval in the front-rear direction Z, and a space 51 is formed between the front cover 40 and the rear cover 42.
From another point of view, the front cover 40 and the rear cover 42 are maintained by the end cover 41 so as to be parallel to the front-rear direction Z and to face each other with a gap therebetween.

  Then, the positional relationship of each member of the solar cell module 1 is demonstrated.

  As shown in FIG. 9, the solar cell panel 2 is sandwiched between a first light-transmitting substrate 3 and a second light-transmitting substrate 5, and a frame member 8 is attached from the outside. That is, the support substrate 10 is interposed between the first translucent substrate 3 and the photoelectric conversion element 11, and the sealing member 12 is interposed between the second translucent substrate 5 and the photoelectric conversion element 11. Intervene.

The front cover 40 of the frame member 8 covers a part of the first translucent substrate 3 as can be seen from FIG. Specifically, the front cover portion 40 of the frame member 8 is fitted in the cutout portion 20 of the first light-transmissive substrate 3. And the outer surface of the front cover part 40 of the frame member 8 forms the same plane as the outer main surface of the first translucent substrate 3, and is flush.
From another viewpoint, the first translucent substrate 3 has an exposed region 55 exposed from the front cover 40 of the frame member 8, as shown in FIG.

As shown in FIG. 6, a plurality of first decorative members 30 and 31 are laid on the outer surface (front surface) of the first light-transmissive substrate 3.
Specifically, as can be read from FIG. 2 and FIG. 9, the first decorative members 30, 31 are spread in a planar shape on the exposed region 55 of the first light-transmissive substrate 3 from the frame member 8. In other words, the first decorative members 30 and 31 are substantially planarly filled in the exposed region 55.
Here, “substantially flat filling” includes not only filling with no gap but also filling with a little gap (for example, 1 cm or less).

  As shown in FIG. 2, the first decorative members 30 and 31 are laid out so that their long sides face the left-right direction X, and are arranged alternately in the left-right direction X. In addition, the first decorative members 30 and 31 are alternately arranged in the vertical direction Y. That is, the first decorative member 31 surrounds the first decorative member 30, and the first decorative member 30 surrounds the first decorative member 31.

  The interfaces between the first decorative members 30 and 31 and the first translucent substrate 3 are bonded by a known transparent adhesive (not shown). That is, the inner side surfaces of the first decorative members 30 and 31 are bonded to the outer side surface of the first translucent substrate 3 with a known transparent adhesive.

As shown in FIG. 6, the rear cover portion 42 of the frame member 8 covers a part of the second translucent substrate 5. Specifically, the rear cover portion 42 of the frame member 8 is fitted in the cutout portion 21 of the second light transmissive substrate 5. The outer surface of the rear surface covering portion 42 of the frame member 8 forms the same plane as the outer main surface of the second light-transmissive substrate 5 and is flush with the outer surface.
From another viewpoint, the second light-transmissive substrate 5 has an exposed region 56 exposed from the rear surface cover portion 42 of the frame member 8 as shown in FIG.
The exposed area 56 is in a position corresponding to the exposed area 55 in the thickness direction Z, and the projection surface in the thickness direction Z overlaps with the exposed area 55.

As shown in FIG. 3, a plurality of second decorative members 32 and 33 are laid on the outer surface (rear surface) of the second light-transmitting substrate 5 as in the case of the outer surface of the first light-transmitting substrate 3. Has been.
Specifically, the second decorative members 32 and 33 are spread on the exposed area 56 of the second light-transmissive substrate 5 in a planar shape. In other words, the second decorative members 32 and 33 are substantially planarly filled in the exposed region 56.

The second decorative members 32 and 33 are generally arranged at positions corresponding to the first decorative members 30 and 31 in the member thickness direction.
That is, the second decorative members 32 and 33 are laid out so that the long sides thereof face the left-right direction X, and are arranged in the left-right direction X alternately. Further, the second decorative members 32 and 33 are alternately arranged in the vertical direction Y. That is, the second decorative member 33 surrounds the second decorative member 32, and the second decorative member 32 surrounds the second decorative member 33.
Further, when the main surface of the first translucent substrate 3 is viewed from the front, the first decorative members 30, 31 overlap the second decorative members 32, 33 and are outside the first decorative members 30, 31. The peripheral edge coincides with the outer peripheral edge of the second decorative member 32, 33.

  The interfaces between the second decorative members 32 and 33 and the second translucent substrate 5 are bonded by a known transparent adhesive (not shown).

As shown in FIG. 9, the end surface covering portion 41 of the frame member 8 is disposed across the end surfaces of the first light transmitting substrate 3 and the second light transmitting substrate 5.
The first translucent substrate 3 is pressed against the support substrate 10 side of the solar cell panel 2 by the front cover portion 40 of the frame member 8, and the second translucent substrate 5 is the rear cover portion of the frame member 8. 42 is pressed toward the sealing member 12 side of the solar cell panel 2. In other words, the first light-transmitting substrate 3 and the second light-transmitting substrate 5 are urged by the frame member 8 in directions close to each other.

Further, as shown in FIG. 6, when the solar cell module 1 is viewed in cross section, the thickness of the first decorative member 31 is larger than the thickness of the first decorative member 30 as described above. , And protrudes in the thickness direction Z from the adjacent first decorative member 30. In other words, the first decorative member 31 protrudes in the thickness direction Z from the outer surface of the adjacent first decorative member 30.
Similarly, since the thickness of the second decorative member 33 is thicker than the thickness of the second decorative member 32, the second decorative member 33 projects from the adjacent second decorative member 32 in the thickness direction Z. In other words, the second decorative member 33 protrudes in the thickness direction Z from the outer surface of the adjacent second decorative member 32.

  According to the solar cell module 1 of the first embodiment, the appearance differs depending on the incident angle of light on the decorative members 6 and 7 and the size of the illuminance. It becomes a decoration that is hard to get tired of.

  Moreover, according to the solar cell module 1 of 1st Embodiment, since a view changes with a user's viewing angle, the user can enjoy a change with the angle which looks at the solar cell module 1. FIG.

In the above-described embodiment, the case where a part of the wall surface of the building is formed by one solar cell module 1 has been described. However, a large wall surface using a plurality of solar cell modules 1 by applying the solar cell module 1. May be formed.
This case will be described below as a second embodiment.

  As shown in FIGS. 10 and 11, the solar cell module 100 of the second embodiment is fixed to a fixed column 101 (fixing member) together with other solar cell modules 100, and is one wall structure 120 of a building or a fence. Is formed. Specifically, the solar cell module 100 forms the wall surface structure 120 of the house 125.

  The wall surface structure 120 has the solar cell module 100, the fixed pillar 101, and the shielding member 118 (shielding means) so that it can read from FIG. 12, FIG.

Unlike the solar cell module 1 of the first embodiment, the solar cell module 100 includes superimposing decorative members 130 and 131 that overlap the frame member 8 when viewed from the front, as can be read from FIGS. 14 and 15. .
The overlapping decorative members 130 and 131 are decorative members positioned at both ends in the vertical direction Y, and are formed across the frame region 8 from the exposed region 55. That is, the superimposed decorative members 130 and 131 are located at both ends in the vertical direction Y when viewed from the front, and extend in a band shape.

As shown in the enlarged view of FIG. 15, the overlapping decorative member 130 has a substantially “L” cross-sectional shape, and includes a main body portion 132 and a protruding portion 133 that protrudes from a part of the main body portion 132. Have.
The main body 132 is a part that can be attached to the translucent substrate, and is a rectangular plate-like part like the decorative members 30 and 31.
The overhang portion 133 is a portion that shields a part of the frame member 8 and is a plate-like portion that protrudes upward from the outer end portion of the main body portion 132 in the installation posture.
Specifically, the overhang portion 133 projects in the vertical direction Y from the outer end portion of the main body portion 132, and the outer surface of the overhang portion 133 is flush with the outer surface of the main body portion 132 in the installation posture. Forming and being flush.
That is, the superimposed decorative member 130 forms a stepped portion on the inner surface of the overhang 133 and the inner surface of the main body 132.

As shown in the enlarged view of FIG. 15, the overlapping decorative member 131 has a substantially “L” cross-sectional shape, and includes a main body portion 135 and a protruding portion 136 that protrudes from a part of the main body portion 135. Have.
The main body 135 is a part that can be attached to the translucent substrate, and is a rectangular plate-like part like the decorative members 30 and 31.
The overhanging portion 136 is a portion that shields a part of the frame member 8, and is a plate-like portion that protrudes downward from the outer end portion of the main body portion 135 in the installation posture.
Specifically, the overhang portion 136 overhangs from the outer end portion of the main body portion 135, and in the installation posture, the outer surface of the overhang portion 136 forms the same plane as the outer surface of the main body portion 135. It is one.
That is, the superimposed decorative member 131 forms a stepped portion on the inner side surface of the overhang portion 136 and the inner side surface of the main body portion 135.

  The positional relationship of each part of the solar cell module 100 will be described.

As in the solar cell module 1 of the first embodiment, the solar cell module 100 is provided with decorative members 30 to 33 in the exposed areas 55 and 56 from the frame member 8 for each of the front surface and the back surface.
Then, around the frame member 8, the overlapping decorative members 130 and 131 extend in the vertical direction Y to the frame member 8 beyond the exposed regions 55 and 56 as described above.
That is, when the solar cell module 100 is viewed from the front as shown in FIG. 16, the decorative region 111 in which the decorative members 30, 31, 130, 131 are formed and the decorative members 30, 31, 130, Fixed regions 112 and 113 where 131 is not formed are formed.

As can be seen from FIGS. 11 and 12, the fixed column 101 is a member that supports each solar cell module 100 in a vertical position, and is a fixed member that fixes the solar cell module 100 at a predetermined position.
That is, the fixed column 101 is a member that is fixed in a posture in which the main surface of each solar cell module 100 is oriented in a direction intersecting the vertical direction (vertical direction Y) as shown in FIG.

  As shown in FIG. 17, the fixed column 101 has a fixed portion 115 and a reinforcing portion 116.

As shown in FIG. 17, the fixing portion 115 is a bar-shaped portion having a cross-sectional shape of “H” shape, and faces the front plate portion 102 and the rear plate portion 103 facing each other with a predetermined interval, and the front plate portion. 102 and the rear plate portion 103, and a lower plate portion 108.
The connecting plate portion 105 is arranged so as to divide the space between the front plate portion 102 and the rear plate portion 103 into two in the left-right direction X. In other words, the connecting plate portion 105 is sandwiched between the two spaces 106 and 107 in the lateral direction (left-right direction X).
As shown in FIG. 17, the lower plate portion 108 is a plate-like portion that fixes the wiring 13 or the wiring 14, and stands upright with respect to any of the front plate portion 102, the rear plate portion 103, and the connection plate portion 105. It is a part. That is, the lower plate portion 108 is erected in the left-right direction X with respect to the connection plate portion 105 and is a portion that forms an end portion of the space 106.
The lower plate part 108 has an insertion hole 109 through which a part of the wirings 13 and 14 can be inserted. The insertion hole 109 is a through hole that penetrates the lower plate portion 108 in the member thickness direction.

The reinforcing part 116 is a part that reinforces the rigidity of the fixing part 115, and specifically, is a rib.
The reinforcing part 116 is a plate-like part that rises outward from a part of the fixing part 115. Specifically, the rear plate portion 103 is erected in a direction orthogonal to the rear plate portion 103 and extends in the longitudinal direction (vertical direction Y) of the fixed portion 115.
The reinforcing portion 116 is provided at a position facing the connection plate portion 105 with the rear plate portion 103 interposed therebetween.

The shielding member 118 is a member that blocks light transmission, and is a member that makes it difficult for a user or a passer-by to see the fixed column 101 by covering the front plate portion 102 of the fixed column 101.
As shown in FIG. 13, the shielding member 118 is formed of a scattering sheet 121 and one or more decorative plates 122.
The scattering sheet 121 is a member that scatters light, and is a member that scatters or reflects light toward the fixed column 101.
The decorative plate 122 is a member that adjusts the design uniformity with the first decorative members 30 and 31.

The scattering sheet 121 covers most of the front plate portion 102, and a decorative plate 122 is installed thereon.
The “most” here represents a range of 80% or more of the reference.
In the present embodiment, as can be seen from FIG. 13, the scattering sheet 121 covers the entire front surface of the front plate portion 102, and the decorative plate 122 covers the entire front surface of the scattering sheet 121.

  Then, the positional relationship of each member is demonstrated with the assembly procedure of the wall surface structure 120 of 2nd Embodiment.

  First, as shown in FIG. 18, a plurality of fixed columns 101 are provided so as to stand upright with respect to the floor surface (fixed column installation step).

  At this time, as shown in FIG. 18, the fixed columns 101 are arranged on the same straight line with a certain interval in the horizontal direction X (left-right direction). And the space 106 of the adjacent one fixed column 101 and the space 107 of the other fixed column 101 face each other in the juxtaposition direction (lateral direction X).

  Further, by a separate process, the solar cell panel 2 is sandwiched between the first light-transmitting substrate 3 and the second light-transmitting substrate 5, and the frame member 8 is attached in this state, and the decorative members 30, 31, 32, 33, 130, The solar cell module 100 is formed by spreading 131 (a solar cell module forming step).

Next, a 1st solar cell module attachment process is performed after said fixed pillar installation process and a solar cell module formation process are complete | finished.
That is, as shown in FIG. 19, the fixed regions 112 and 113 of the solar cell module 100 are inserted into the spaces 107 and 106 of the fixed columns 101 and 101 and moved.
Specifically, one side of the frame member 8 of the solar cell module 100 a is inserted into the space 106 of the fixed column 101, and the opposite side of the frame member 8 of the solar cell module 100 a is inserted into the space 107 of the fixed column 101. In this state, the solar cell module 100 is slid downward along the spaces 106 and 107.

  Thereafter, the solar cell module 100a is slid downward along the fixed column 101, and the solar cell module 100a is positioned at a predetermined height (in this embodiment, about 50 mm) from the lower plate portion 108. Stop moving. Then, as shown in FIG. 20, a part of the positive electrode wiring 13 of the solar cell module 100 a is inserted through the insertion hole 109 of the lower plate portion 108.

Thereafter, the solar cell module 100a is slid again until the lower end surface of the solar cell module 100a contacts or approaches the lower plate portion 108 again.
In this embodiment, the solar cell module 100a is slid until it approaches or comes into contact so that the distance between the lower end surface of the solar cell module 100a and the lower plate portion 108 is 2 cm or less.
At this time, the insertion hole 46 of the lower surface forming portion 48 of the frame member 8 communicates with the insertion hole 109 of the lower plate portion 108 directly or across a space to form one communication hole. The positive electrode wiring 13 is inserted into the communication hole.

  Then, in a state where the lower end surface of the solar cell module 100a is placed on the lower plate portion 108, the solar cell module 100a is connected to the rear plate portion 103 of the fixed column 101 with a known fastening element as shown in FIG. Fixed by.

When the first solar cell module attachment step is completed and the first-stage solar cell module 100a is fixed, the second-stage solar cell module 100b is attached to the fixed columns 101 and 101.
That is, a 2nd solar cell module attachment process is implemented.
Specifically, as shown in FIG. 22, one side of the frame member 8 of the solar cell module 100b is inserted into the space 106 of the fixed column 101, and the opposite side of the frame member 8 of the solar cell module 100b is the space of the fixed column 101. Insert into 107. In this state, the solar cell module 100b is slid downward along the spaces 106 and 107.

  Thereafter, as shown in FIG. 23, the movement of the solar cell module 100b at a predetermined height (in the present embodiment, a height of about 100 mm) from the upper end surface (upper surface forming portion 47) of the lower solar cell module 100a. Stop. Then, the negative electrode wiring 14 of the lower solar cell module 100a is connected to the positive electrode wiring 13 of the upper solar cell module 100b, and the lower negative electrode wiring is inserted into the insertion hole 45 in the upper surface forming portion of the frame member 8 of the lower solar cell module 100a. 14 and the positive electrode wiring 13 of the upper stage are pushed in and inserted.

Then, the second-stage solar cell module 100b is gradually lowered, and the lower end portion (lower surface forming portion) of the second-stage solar cell module 100b is added to the upper end portion (upper surface forming portion 47) of the first-stage solar cell module 100a. 48) in close proximity or contact.
In the present embodiment, the upper surface forming portion 47 of the frame member 8 of the solar cell module 100a and the lower surface forming portion 48 of the frame member 8 of the solar cell module 100b are close to or in contact with each other so as to be 2 cm or less.

  At this time, the insertion hole 45 of the upper surface forming portion 47 and the insertion hole 46 of the lower surface forming portion 48 communicate with each other directly or across a space to form one communication hole. A part of the positive electrode wiring 13 is inserted into the communication hole.

  Then, with the upper solar cell module 100b placed on the lower solar cell module 100a, the upper solar cell module 100b is attached to the rear plate portion 103 of the fixed column 101 as shown in FIG. It is fixed by a known fastening element.

  Thereafter, the above-described second solar cell module mounting step is repeated to form the solar cell modules 100 at each stage, and when the installation of the solar cell modules 100 is completed, as shown in FIG. The scattering sheet 121 and the decorative plate 122 are attached on the front plate portion 102 to complete the wall surface structure 120.

  According to the wall surface structure 120 of the second embodiment, since the overlapping decorative members 130 and 131 are formed on the frame member 8 in the vertical direction, the seam between the solar cell modules in the vertical direction is hardly noticeable, and the wall surface has high design. It becomes a structure.

  In addition, according to the wall surface structure 120 of the second embodiment, since the fixed column 101 is hidden by the shielding member 118, the fixed column 101 is less noticeable, has a sense of unity, and has a high design property.

In the embodiment described above, the solar cell module 100 in a pre-assembled state is fixed to the fixed column to form the wall surface structure 120. However, the present invention is not limited to this, and is fixed to the fixed column 101. A wall surface structure may be formed by attaching a decorative member.
This case will be described as a third embodiment.

As shown in FIG. 26, the wall surface structure 150 of the third embodiment forms a wall surface using a plurality of the solar cell modules 1 of the first embodiment, and is adjacent to the vertical direction Y (vertical direction). , 1 overlaps the frame member 8, 8 with the overlapping decorative member 151.
The overlapping decorative member 151 is a member that adjusts the design uniformity between the decorative members adjacent in the vertical direction across the frame members 8 and 8.
The superimposed decorative member 151 is a long plate-like member having translucency.

  Then, the assembly procedure of the wall surface structure 150 of 3rd Embodiment is demonstrated. In addition, the process similar to 2nd Embodiment is demonstrated easily.

  First, as in the second embodiment, a fixed column installation step is performed to attach a plurality of fixed columns 101 to the floor surface. Further, the solar cell panel 2 is sandwiched between the first light transmissive substrate 3 and the second light transmissive substrate 5 by a separate process, and the frame member 8 is attached in this state. And the decorative members 30-33 are affixed on the exposed areas 55 and 56, and the solar cell module 1 is formed. That is, the solar cell module 1 of the first embodiment in which the decorative members 30 to 33 are not formed on the frame member 8 is formed (solar cell module forming step).

  And a 1st solar cell module attachment process is performed. That is, as shown in FIG. 27, a part of the solar cell module 1a is inserted into the spaces 106 and 107 of the fixed columns 101 and 101, and the solar cell module 1a is fixed to the fixed column 101 by a fastening element.

  After completion of the first solar cell module mounting step, a second solar cell module mounting step is performed, and a part of the new solar cell module 1b is placed in the spaces 106 and 107 of the fixed columns 101 and 101 as shown in FIG. The lower surface forming portion 48 of the upper solar cell module 1b is brought close to or in contact with the upper surface forming portion 47 of the lower solar cell module 1a so as to have an interval of 2 cm or less.

Then, as can be read from FIGS. 29 and 30, the overlapping decorative member 151 is attached on the front cover portions 40 and 40 of the frame members 8 and 8 adjacent to each other in the vertical direction.
At this time, as shown in FIG. 30, the superimposed decorative member 151 is provided across the boundary portion between the frame members 8 and 8 of the solar cell modules 1 a and 1 b adjacent to each other in the vertical direction.
Specifically, the front cover 40a of the upper cover 60 of the frame member 8 of the lower solar cell module 1a and the front cover 40b of the lower cover 61 of the frame member 8 of the upper solar cell module 1b. A superimposed decorative member 151 is laid across the bridge. That is, the boundary portion between the frame members 8 and 8 is covered and hidden by the superimposing decorative member 151.

  Further, on the back surface, the rear cover portion 42a of the upper cover portion 60 of the frame member 8 of the lower solar cell module 1a and the rear cover portion 42b of the lower cover portion 61 of the frame member 8 of the upper solar cell module 1b are straddled. Thus, a superimposed decorative member 151 is laid. That is, the boundary portion between the frame members 8 and 8 is covered and hidden by the superimposing decorative member 151.

  Thereafter, the second solar cell module mounting step is repeated, the solar cell modules 1 at each stage are mounted, the superimposed decorative member 151 is pasted, and when the installation of the solar cell modules 1 at each stage is finished, the fixed pillar 101 The wall surface structure 150 is completed by attaching the scattering sheet 121 and the decorative plate 122 of the shielding member 118 on the front plate portion 102.

  According to the wall surface structure 150 of the third embodiment, the overlapping decorative member 151 covers the boundary portion between the frame members 8 and 8 adjacent in the vertical direction, so that the boundary between the frame members 8 and 8 is difficult to see and the design is excellent. It becomes a structure.

  In the third embodiment described above, the fixing column 101 is made inconspicuous by providing the shielding member 118, but the present invention is not limited to this, and the fixing column 101 may be hidden by a decorative member.

This case will be described as a fourth embodiment.
In the wall surface structure 200 of 4th Embodiment, the shape of the decorative member located in the edge part of the left-right direction of the solar cell module 100 differs from the wall surface structure 120 of 2nd Embodiment.
Specifically, in the wall surface structure of the fourth embodiment, the shielding decorative members 201 and 202 which are decorative members adjacent to each other with the fixed column 101 interposed therebetween are different in shape from other decorative members.
As can be seen from FIGS. 31 and 32, the shielding decorative member 201 has a substantially “L” cross-sectional shape, and has a main body portion 205 and a protruding portion 206 that protrudes from a part of the main body portion 205. doing.
The main body 205 is a part that can be attached to the translucent substrate, and is a rectangular plate-like part like the decorative members 30 and 31.
The overhang portion 206 is a portion that shields a part of the fixed column 101, and is a plate-like portion that protrudes rightward from the outer end of the main body portion 205 in the installation posture.
Specifically, the overhang portion 206 overhangs from the front side end portion of the main body portion 205, and in the installation posture, the outer surface of the overhang portion 206 forms the same plane as the outer surface of the main body portion 205, It is the same.
That is, the shielding decorative member 201 forms a step portion on the inner side surface of the overhang portion 206 and the inner side surface of the main body portion 205.

As can be seen from FIGS. 31 and 32, the shielding decorative member 202 is a member that has a symmetrical relationship with the shielding decorative member 201, has a substantially “L” cross-sectional shape, An overhanging portion 208 that protrudes from a part of the main body portion 207 is provided.
The main body 207 is a part that can be attached to the translucent substrate, and is a rectangular plate-like part like the decorative members 30 and 31.
The overhanging portion 208 is a portion that shields a part of the fixed column 101, and is a plate-like portion that protrudes leftward from the outer end of the main body portion 207 in the installation posture.
Specifically, the overhang portion 208 overhangs from the front end of the main body portion 207, and in the installation posture, the outer surface of the overhang portion 208 forms the same plane as the outer surface of the main body portion 207, It is the same.
That is, the shielding decorative member 202 forms a stepped portion on the inner side surface of the overhang portion 208 and the inner side surface of the main body portion 207.

  Then, the positional relationship of each site | part of the wall surface structure of 4th Embodiment is demonstrated.

When attention is paid to the solar cell modules 1 and 1 that are adjacent to each other in the left-right direction X across the fixed column 101, the overhanging portion 206 of the shielding decorative member 201 and the overhanging portion 208 of the shielding decorative member 202 are close to each other in the left-right direction. Extending in the direction.
The fixed column 101 is covered with the overhang portions 208 and 206 of the shielding decorative members 202 and 201 adjacent to each other with the fixed column 101 interposed therebetween. That is, when viewed from the rear side, the projection surface in the front-rear direction Z of the front plate portion 102 of the fixed column 101 straddles the overhang portions 206 and 208 of the adjacent shielding decorative members 201 and 202.

  According to the wall surface structure 200 of the fourth embodiment, since the fixed column 101 is hidden by the shielding decorative members 201 and 202 adjacent to each other with the fixed column 101 interposed therebetween, the wall surface to be formed can be integrated. The wall structure has a high design property.

In the first embodiment described above, the decorative plate having a square cross-sectional shape is used. However, the present invention is not limited to this, and may be a decorative plate having a slope on the front surface. . That is, a decorative plate having a pentagonal cross section with a slope facing outward may be used like a decorative plate 220 shown in FIG.
By doing so, it is difficult for light to be transmitted to the fixed column 101, and it is possible to make the fixed column 101 difficult to see for a user or the like.

In the above-described fourth embodiment, the projecting ends 206 and 208 of the shielding decorative members 201 and 202 adjacent to each other with the fixed column 101 are faced to each other or face each other with a predetermined interval therebetween. However, the tip portions may be engaged with each other.
For example, as shown in FIG. 34, of the shielding decorative members 230 and 231 adjacent to each other with the fixed column 101 interposed therebetween, one shielding decorative member 230 is provided with a convex portion 232, and the other shielding decorative member 231 has a notch 233 ( Or you may engage by providing a recessed part.

  In the above-described embodiment, the decorative member is spread in a planar shape on the translucent substrate. However, the present invention is not limited to this, and the makeup is applied on the translucent substrate 240 as shown in FIG. The members 241 may be scattered in a planar shape. In this case, the type of the decorative member 241 does not necessarily need to be two or more types, and may be one type.

  In the above-described embodiment, the surface of the decorative members 30 and 32 is subjected to uneven processing to change the haze. However, the present invention is not limited to this, and the haze may be controlled by other methods. Good. For example, the haze may be changed by making the decorative members 30 and 32 hollow.

In the above-described embodiment, surface irregularities are formed on the outer surface of the decorative member, but the present invention is not limited to this, and surface irregularities may also be formed on the side surfaces of the decorative member.
By carrying out like this, the outline of a decorative member can be made clearer.
In addition, for example, as shown in FIG. 36, the decorative member may be formed of various types of decorative members 245 having different surface irregularities and different presence or absence.

In the above-described embodiment, the frame member 8 is provided to bring the first light-transmissive substrate 3 and the second light-transmissive substrate 5 close to the solar cell panel 2, but the present invention is not limited to this. The frame member 8 may not be provided.
For example, the first translucent substrate 3 and the second translucent substrate 5 may be brought close to the solar cell panel 2 by the fixing columns 101.

  In the above-described embodiment, the support substrate 10 that is separate from the first light-transmissive substrate 3 is used as the substrate that supports the photoelectric conversion element 11, but the present invention is not limited thereto, and the support substrate is not limited thereto. Alternatively, the photoelectric conversion element 11 may be directly laminated on the first translucent substrate 3 without providing 10.

  In the above-described embodiment, the sealing member 12 separate from the second light-transmissive substrate 5 is used as a member for sealing the photoelectric conversion element 11, but the present invention is not limited to this, The photoelectric conversion element 11 may be sealed by the second light transmissive substrate 5 without providing the sealing member 12.

  In the above-described embodiment, in the decorative members 6 and 7, the decorative properties are enhanced by mixing the decorative members 30 and 32 having the unevenness on the decorative members 31 and 33, but the present invention is limited to this. Instead, a decorative member with decoration such as a pattern, a picture, or a character may be mixed.

  In the above-described embodiment, a see-through solar cell panel that transmits light in the thickness direction is used as the solar cell panel 2, but the present invention is not limited to this, and is a known device that does not transmit light in the thickness direction. The solar cell panel may be used.

In the above-described embodiment, the two first decorative members 30 and 31 are regularly arranged on the first light-transmitting substrate 3 so as to alternate, but the present invention is not limited to this. The number of types of decorative members and the arrangement of decorative members are not particularly limited. That is, as shown in FIG. 37, three or more types of first decorative members 90 may be irregularly arranged on the first translucent substrate 3.
Similarly, in the above-described embodiment, the two types of second decorative members 32 and 33 are regularly arranged on the second light-transmitting substrate 5 so as to alternate, but the present invention is limited to this. However, the number of types of decorative members and the arrangement of the decorative members are not particularly limited. That is, three or more types of second decorative members may be irregularly arranged on the second light transmitting substrate 5.

In the embodiment described above, the shape of the first decorative member 30, 31 and the second decorative member 32, 33 when viewed in plan was a quadrangular shape, but the present invention is not limited to this, and the decorative The member may have a triangular shape like the decorative member 95 in FIG. 38 (a), or may have a hexagonal shape like the decorative member 96 in FIG. 38 (b).
In the embodiment described above, the rectangular decorative member fills the exposed region. However, the present invention is not limited to this, and a decorative member of another shape may be filled.

  In the embodiment described above, a solar cell panel on which a thin film solar cell is mounted is used as the solar cell panel 2, but the present invention is not limited to this, and the solar cell panel 2 is mounted with a crystalline silicon solar cell. It may be a crystalline solar cell panel. Further, the solar cell panel 2 may be a compound semiconductor solar cell panel on which a compound semiconductor solar cell such as CIS, GaAs, or CdTe is mounted. The solar cell panel 2 may be an organic solar cell panel on which an organic solar cell such as a dye-sensitized solar cell or an organic thin film solar cell is mounted.

1,100 Solar cell module 3 First translucent substrate (first substrate)
5 Second translucent substrate (second substrate)
8 Frame member 10 Support substrate 11 Photoelectric conversion element 20, 21 Notch 30, 31 First decorative member (decorative member)
32, 33 Second decorative member 35, 36 Concavity and convexity 80, 125 Housing 90, 95, 96, 241, 245 Cosmetic member 101 Fixed pillar (fixing member)
118 Shielding part (shielding means)
120, 150, 200 Wall structure 122, 220,
130, 131, 151, 152 Superimposing decorative member 201, 202, 230, 231 Shielding decorative member 240 Translucent substrate

Claims (18)

In a solar cell module comprising a first light transmissive substrate, a second light transmissive substrate, and a photoelectric conversion element between the first light transmissive substrate and the second light transmissive substrate,
The photoelectric conversion element can convert light energy into electrical energy when irradiated with light,
Having a plurality of decorative members having translucency,
The plurality of decorative members are plate members that are separate from the first light-transmitting substrate, and are spread in a planar shape on the first light-transmitting substrate ,
Among the plurality of decorative members, there are at least a plurality of types of decorative members having different hazes,
Of the plurality of types of decorative members, two types of decorative members that are separate and have different thicknesses are arranged adjacent to each other,
Of the two types of decorative members, one decorative member has an uneven surface on one side, and the other decorative member has a smooth one side surface . The solar cell module according to claim 1 , wherein the other decorative member protrudes from the one decorative member. The thickness of the said decorative member is 10 mm or more and 50 mm or less, The solar cell module of Claim 1 or 2 characterized by the above-mentioned. 4. The solar cell module according to claim 1, wherein the decorative member has a haze of 0.1% to 0.5%. 5. The solar cell module according to claim 1, wherein the thickness of the one decorative member is 1.1 to 2.0 times the thickness of the other decorative member. The said photoelectric conversion element is laminated | stacked on a support substrate, and comprises the thin film solar cell, The solar cell module in any one of Claims 1-5 characterized by the above-mentioned. A support substrate and a frame member;
The support substrate is to support the photoelectric conversion element, and is interposed between the first light-transmissive substrate and the photoelectric conversion element,
2. The frame member sandwiches the first light-transmitting substrate and the second light-transmitting substrate, and presses the first light-transmitting substrate toward the support substrate. The solar cell module according to any one of to 6 . The first translucent substrate is made of acrylic resin,
The solar cell module according to claim 7 , wherein the support substrate is made of glass. A frame member sandwiching the first light-transmitting substrate and the second light-transmitting substrate;
The solar cell according to any one of claims 1 to 8 , wherein in the plurality of decorative members, there is a superimposed decorative member that is a decorative member that overlaps a part of the frame member when viewed from the front. module. In a solar cell module comprising a first light transmissive substrate, a second light transmissive substrate, and a photoelectric conversion element between the first light transmissive substrate and the second light transmissive substrate,
The photoelectric conversion element can convert light energy into electrical energy when irradiated with light,
Having a plurality of decorative members having translucency,
The plurality of decorative members are arranged in a planar shape on the first translucent substrate,
A frame member sandwiching the first light-transmitting substrate and the second light-transmitting substrate;
Among the plurality of decorative members, there is a superimposed decorative member that is a decorative member that overlaps a part of the frame member when viewed from the front.
The superposed decorative member is bonded to the first light-transmitting substrate and is disposed across the frame member from the first light-transmitting substrate when viewed from the front. . In a solar cell module comprising a first light transmissive substrate, a second light transmissive substrate, and a photoelectric conversion element between the first light transmissive substrate and the second light transmissive substrate,
The photoelectric conversion element can convert light energy into electrical energy when irradiated with light,
Having a plurality of decorative members having translucency,
The plurality of decorative members are arranged in a planar shape on the first translucent substrate,
A frame member sandwiching the first light-transmitting substrate and the second light-transmitting substrate;
The first translucent substrate has a notch,
The frame member is fitted in the notch,
A solar cell module characterized in that a part of an outer main surface of the first light-transmitting substrate and a part of an outer surface of the frame member are flush with the photoelectric conversion element as a reference. In a solar cell module comprising a first light transmissive substrate, a second light transmissive substrate, and a photoelectric conversion element between the first light transmissive substrate and the second light transmissive substrate,
The photoelectric conversion element can convert light energy into electrical energy when irradiated with light,
Having a plurality of decorative members having translucency,
The plurality of decorative members are arranged in a planar shape on the first translucent substrate,
A plurality of second decorative members having translucency;
The plurality of second decorative members are spread in a planar shape on the second light-transmitting substrate,
When the main surface of the first translucent substrate is viewed from the front, the decorative member overlaps the second decorative member, and the outer peripheral edge of the decorative member coincides with the outer peripheral edge of the second decorative member. A solar cell module characterized by that. The photoelectric conversion element transmits part of light when irradiated with light,
2. The see-through solar cell module, which is seen from the first light-transmitting substrate side and the second light-transmitting substrate side is seen through from the first light-transmitting substrate side. The solar cell module according to any one of 12 to 12 . A solar cell module according to any one of claims 1 to 13
In the solar cell module that forms part of the wall of the building together with other solar cell modules,
The said decorative member is installed ranging over the other solar cell module adjacent from the own solar cell module, The solar cell module characterized by the above-mentioned. A wall structure formed by using the solar cell module according to any one of claims 7 to 11,
In the wall surface structure formed by laying a plurality of the solar cell modules in a plane,
A fixing member for fixing the solar cell module in a vertical position;
The wall surface structure, wherein the fixing member covers an exposed portion of the frame member from the decorative member. A solar cell module comprising: a first light transmissive substrate; a second light transmissive substrate; and a photoelectric conversion element between the first light transmissive substrate and the second light transmissive substrate, wherein the photoelectric conversion The element can convert light energy into electrical energy when irradiated with light, and has a plurality of decorative members having translucency, and the plurality of decorative members are provided on the first light-transmitting substrate. A wall surface structure formed using solar cell modules arranged in a shape ,
In the wall surface structure formed by laying a plurality of the solar cell modules in a plane,
A fixing member for fixing the solar cell module in a vertical position, and shielding means for shielding light;
The wall structure, wherein the fixing member is covered with the shielding means when viewed from the front. A solar cell module comprising: a first light transmissive substrate; a second light transmissive substrate; and a photoelectric conversion element between the first light transmissive substrate and the second light transmissive substrate, wherein the photoelectric conversion The element can convert light energy into electrical energy when irradiated with light, and has a plurality of decorative members having translucency, and the plurality of decorative members are provided on the first light-transmitting substrate. a wall structure formed by using the solar battery module are arranged in Jo,
In the wall surface structure formed by laying a plurality of the solar cell modules in a plane,
A fixing member for fixing the solar cell module in a vertical position;
The wall structure, wherein the plurality of decorative members include a shielding decorative member that is a decorative member that overlaps a part of the fixing member when viewed from the front. A house comprising the wall surface structure according to any one of claims 15 to 17 .

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