JP5938235B2 - Installation structure of double-sided light-receiving solar cell module - Google Patents

Description

  The present invention relates to a structure for installing a double-sided light-receiving solar cell module that allows a double-sided light-receiving solar cell module to be laid on an exterior surface such as a roof surface without being subject to various restrictions.

In recent years, with the aim of mitigating global warming, which has a great impact on society, we have built a society (low-carbon society) that emits less carbon dioxide (CO ₂ ), which accounts for a large proportion of the greenhouse gases that cause it. Therefore, instead of the conventional energy dependent on resources such as oil and coal, there is an increase in social momentum that spreads renewable energy using sunlight. In addition, a mechanism has also been established in which the government and local governments subsidize the demand for positively introducing solar cell modules, and power companies purchase excess power.

  In view of these moods and needs, the installation of solar cells in large-scale solar cell facilities, existing building departments or new buildings is being actively promoted. On the other hand, since solar cells generate power by receiving sunlight, not only the installation area, but also the power generation efficiency of solar cells, the irradiation time of sunlight, the angle with respect to the sun, etc. greatly affect the amount of power generation. . Under such circumstances, development of more efficient solar cells and research on mechanisms for changing the angle and direction according to the movement of the sun have been conducted. In the former case, a double-sided solar cell that receives light on both sides of the cell has been developed, and the modularized device is installed vertically on a handrail on a building roof, a signboard, etc. It is used.

  The vertical installation of the double-sided solar cell module keeps receiving light on either the front or back side during the time when the sun irradiates (for example, the front side in the morning, the back side in the afternoon). The amount of received light is to be obtained. However, since such vertical installation receives light on the front or back side even if the sun moves, it is limited by the environment and direction that do not block solar radiation around the vertical wall, and the place where it can be installed is limited. is there. In addition, installation in a place where only one surface is exposed to sunlight cannot obtain the amount of received light, and installation in environments or places where irradiation time is limited is difficult and its use is extremely limited. there were.

  Accordingly, the present invention has an object of proposing an installation structure of a double-sided light-receiving solar cell module that allows the double-sided light-receiving solar cell module to be appropriately laid on the exterior surface without being subject to the various limitations described above. And

The present invention has been proposed in view of the above, in an installation structure in which a double-sided solar cell module in which a plurality of double-sided light-receiving cells are arranged on a light-transmitting base material is laid as a horizontal roofing material , In the double-sided light-receiving solar cell module, a light-transmitting region where the double-sided light-receiving cells do not exist is formed at an interval between adjacent double-sided light-receiving cells, and the power generation region where the double-sided light-receiving cells exist is substantially island-shaped in the light-transmitting region The horizontal beam having a support part and a groove-like part on which the water-side and water-side double-sided light-receiving solar cell modules can be placed is disposed in such a manner that the edge is arranged along the flow direction. Is mounted at a predetermined interval, and at least a reflecting material or a reflecting portion is disposed between the horizontal rails, and a double-sided light receiving solar cell module is disposed so as to cover the upper side, Double-sided light receiving type The sunlight or the reflective part that reflects the sunlight disposed on the back side of the positive battery module is reflected by the reflective material or the reflective part to irradiate the back side of the double-sided light receiving cell. The present invention relates to an installation structure of a double-sided light-receiving solar cell module.

Further, the present invention provides an installation structure in which a double-sided light-receiving solar cell module in which a plurality of double-sided light-receiving cells are arranged on a light-transmitting base material is laid as a vertical roofing material, the double-sided light-receiving solar cell module is , A translucent region where the double-sided light receiving cells do not exist is formed in the arrangement interval between the adjacent double-sided light receiving cells, and the power generation region where the double-sided light receiving cells exist is divided into a substantially island shape in the translucent region, A vertical beam having a support part on which the right-side double-sided solar cell module can be placed and a drain guide are integrally assembled and arranged at a predetermined interval, and at least a reflective material or a reflective part is arranged between the vertical bars. A double-sided light-receiving solar cell module is provided so as to cover the upper side thereof, and is provided by a reflective material or reflecting part that reflects sunlight disposed on the back side of the double-sided light-receiving solar cell module. In which also proposes the installation structure of the bifacial solar cell module, characterized in that the solar light is transmitted through the light-transmissive region is reflected by the reflection member or the reflective portion is irradiated on the back surface side of bifacial cells .

The installation structure of the double-sided light-receiving solar cell module of the present invention includes a power generation region where double-sided light-receiving cells exist and a light-transmitting region formed around each double-sided light-receiving cell and at the interval between adjacent double-sided light-receiving cells. A reflection material or a reflection part is disposed on the back surface side of the double-sided light receiving solar cell module, and the sunlight transmitted through the light-transmitting region is reflected by the reflection material or the reflection part. Thus, the back side of the double-sided light receiving cell can be irradiated. Therefore, the front and back of the double-sided light receiving cell can be effectively used for power generation, and there is no problem even in places where there is something that shields sunlight on the back side such as the roof surface. A larger power generation amount can be expected with the same installation area as the installation area of the solar cell module.
In addition, since the installation structure of the present invention uses the reflection of sunlight by the reflecting material or the reflection part, the installation location is not limited, and the sunlight is not as in a small-scale building or a general house. It can also be applied to buildings where the irradiation time is limited or the orientation of the installation location is limited.
Furthermore, when a reflective material such as a metal is disposed on the entire surface of the base surface, the workability as the reflective material or the reflective portion is facilitated, the cost is reduced, and the entire surface of the base surface is made of metal. Since it is covered, it has a structure with excellent fireproof performance.

In addition, in the installation structure in which the horizontal beam is arranged at a predetermined interval in the flow direction, the reflective material or the reflection part is arranged at least between the horizontal beam, and the double-sided light receiving solar cell module is arranged so as to cover the upper part thereof, A double-sided light-receiving solar cell module that is long in the left-right direction can be effectively disposed. And, for example, in the horizontal type installation structure or connection structure using most of the single-sided light-receiving solar cell modules proposed by the applicant of the present application, the horizontally long double-sided light-receiving solar cell according to the present invention is used as the solar cell module. While using a module, a reflective material or a reflective part may be provided on the back side, and the above-described effects can be added.
In addition, since the horizontal rail is provided with a groove at the upper and lower stages, even if rainwater wraps around the back side of the double-sided light receiving module, the horizontal rail leads to the drainage part of the drainage member. Can flow down to the water side.

In addition, in the installation structure in which the vertical bars are arranged at predetermined intervals in the left-right direction, the reflective material or the reflective portion is provided at least between the vertical bars, and the double-sided light receiving solar cell module is provided so as to cover the upper part thereof, A double-sided light-receiving solar cell module that is long in the flow direction can be effectively disposed. And, for example, in the vertical-winding type installation structure or connection structure using most single-sided light-receiving solar cell modules proposed by the applicant of the present application, the vertically long double-sided light-receiving solar cell of the present invention is used as the solar cell module. While using a module, a reflective material or a reflective part may be provided on the back side, and the above-described effects can be added.
Further, the vertical rail can be caused to flow down at the drainage portion of the drain guide even if there is water from the left and right connecting portions or from the connecting portion in the flow direction.

(A) Perspective view in which components are intentionally omitted to show the installation structure of the double-sided light-receiving solar cell module of the first embodiment, (b) A side sectional view showing the main part thereof. . (A) Perspective view with intentional components omitted to show the installation structure of the double-sided light-receiving solar cell module of the second embodiment, (b) A side sectional view showing the main part thereof. . (A) Side sectional drawing which shows the principal part of the installation structure of the solar cell module of 3rd Example, (b) Side sectional view which shows the principal part of the installation structure of the solar cell module of 4th Example. (A) Perspective view with intentional components omitted to show the installation structure of the double-sided light-receiving solar cell module of the fifth embodiment, (b) Side sectional view showing the main part thereof. . (A) Perspective view with intentional components omitted to show the installation structure of the double-sided light receiving solar cell module of the sixth embodiment, (b) A side sectional view showing the main part thereof. . (A) Side sectional drawing which shows the installation structure of the double-sided light reception type solar cell module of 7th Example which applied this invention to the folded-plate roof, (b) It is the front sectional drawing. (A) Side sectional drawing which shows the installation structure of the double-sided light reception type solar cell module of 8th Example which applied this invention to the folded-plate roof, (b) It is the front sectional drawing. (A) Side sectional drawing which shows the general part which has not arrange | positioned the attachment member in the installation structure of the double-sided light reception type solar cell module of 9th Example, (b) It is a side sectional view which shows the principal part. It is a perspective view which shows the installation structure which applied the double-sided light reception type solar cell module of 9th Example to the folded-plate roof. (A) Side sectional view showing the installation structure of the double-sided solar cell module of the tenth embodiment, (b) Side sectional view showing the installation structure of the double-sided solar cell module of the eleventh embodiment, (c) No. It is a sectional side view which shows the installation structure of the double-sided light reception type solar cell module of 12 examples, (d) It is a sectional side view which shows the installation structure of the double-sided light reception type solar cell module of 13th Example.

The installation structure of the double-sided light-receiving solar cell module according to the present invention includes a power generation region where double-sided light-receiving cells exist, a light-transmitting region formed around each double-sided light-receiving cell, and an interval between adjacent double-sided light-receiving cells, Is a structure in which a double-sided light receiving solar cell module is configured, and a reflective material or a reflective portion that reflects sunlight is disposed on the back surface side.
With this structure, the surface side of the double-sided light-receiving cell in the power generation area can be generated by irradiating sunlight from the surface side, as well as the installation structure of a normal solar cell module. The reflected sunlight or the reflecting part is reflected by the reflecting material or reflected from the back surface side of the power generation region, and the back surface side of the double-sided light receiving cell can be generated.

The double-sided light-receiving solar cell module used in the present invention has a structure in which a plurality of double-sided light-receiving cells are arranged on a light-transmitting base material, and the front and back surface protective materials (layers) constituting the base material are translucent. As long as it has a property, it may be transparent or translucent, and is composed of a transparent or translucent glass or resin plate or sheet, etc., and is appropriately selected depending on the size and location of use as a module. For example, as a base material, a structure may be used in which a plurality of double-sided light receiving cells are sandwiched using glass as a protective material (layer) on both front and back surfaces, or a glass is used as a surface protective material only on the surface, and a plurality of double-sided surfaces are formed with the surface protective material. The front side of the light receiving cell is protected, and the back side of the double-sided light receiving cell employs a configuration in which a resin-based sheet such as ethylene vinyl acetate (EVA) is used as a sealing material and a back sheet is provided as a transparent protective layer. You can also. As the double-sided light receiving cell, various double-sided light receiving cells such as silicon-based, compound-based, and organic-based can be used. It should be noted that the module has only to be water-proofed and waterproofed at the periphery (small edge), and does not ask for the presence or absence of a frame to increase the module's rigidity, but does not block rainwater that flows down the module surface. Thus, it is preferable that there is no projection such as a frame in at least the direction crossing the flow direction. Further, the module may use a double-sided light-receiving cell that is reduced in size (for example, about half) in order to increase the versatility of the peripheral device.
The double-sided light-receiving cells formed in a predetermined area are arranged on the base material such that the adjacent double-sided light-receiving cells are spaced apart at a predetermined interval, in other words, the arrangement between adjacent double-sided light-receiving cells. A light-transmitting region where the double-sided light receiving cells do not exist is formed at intervals, and the power generation region where the double-sided light receiving cells exist is divided into substantially island shapes in the light transmitting region.
In the present invention, the power generation region is divided, that is, the double-sided light receiving cells are separated from each other even if the entire periphery of the double-sided light receiving cells is separated. As long as a light-transmitting region can be obtained as a module, the arrangement (arrangement) of the double-sided light receiving cells is not questioned. In short, the possible arrangements are as follows: (1) Each double-sided light receiving cell is all spaced apart from each other, (2) Two or four double-sided light receiving cells are placed close together to form one block, and between the blocks Are spaced apart, (3) the longitudinal direction or the short direction of the modules are close to each other, and the other is separated.

The reflecting material or reflecting portion used in the present invention reflects sunlight transmitted through a light transmitting region in the double-sided light receiving solar cell module and irradiates the backside of the double-sided light receiving cell with sunlight. In the material and the surface treatment, a material that diffuses (diffusely reflects) rather than a so-called mirror surface is preferable. For example, it may be provided on the entire surface or provided partially. Even if it exists in a material etc., steel plate and copper plates, such as iron, stainless steel, and aluminum, or coated steel plates, such as a surface-treated steel plate and vinyl chloride, may be plate shape and film shape. Further, it may be an impregnated sheet such as a hard resin plate, a resin sheet, or asphalt. The reflective material may be painted in white, silver, etc., or may have a reflective (including glossy) top coat, a surface with a mirror finish, and a plurality of these modes. It may also be used. Further, the reflecting material or the reflecting portion may be substantially flat or may have an angular wave shape or an arc shape as in the illustrated embodiment described later. In addition, when a double-sided light receiving solar cell module is disposed on a newly installed / existing roof, a reflective material or a reflective portion as described above may be used separately or newly, or an area corresponding to a target area A reflective part may be formed by applying a coating material or the like having reflective performance thereon.
Moreover, although it is the same also in the horizontal type | formula or vertical type | formula mentioned later, the aspect arrange | positioned to the arrangement | positioning space | interval of a horizontal beam or a vertical beam, for example, the aspect laid as a base material which doubles as a roofing (paper), may be sufficient. The portion (face plate portion) that reflects the light may be flat or continuous (square). In addition, in the aspect in which the reflecting material or the reflecting portion is arranged at the interval of the horizontal beam or the vertical beam, as shown in the illustrated embodiment described later, the edge is raised and fitted between the vertical beams or between the horizontal beams. Further, it may be locked to a vertical residue or a horizontal rail, or may be fixed with a screw or the like.

Since the reflecting material or the reflecting portion is different depending on the arrangement method (laying method) of the double-sided light receiving module and the structure of the base, an example of installation (including formation) target and installation (including formation) is shown below. .
(1) Specifications for laying a double-sided light receiving module as a roofing material (roofing material type);
The structure of the lower layer does not matter because it is provided with a rain finish as a roof by modules, crosspieces and related members. Therefore, what installs this reflecting plate or a reflection part on a housing (base) may install this reflector or a reflection part on a newly installed roof and the existing roof.
(2) Installation target is new and existing roof specifications (roof standing type);
New and existing roofs are well-known wood floors, vertical wood, folded boards, roof tiles, slate wood, waterproof layers (sheets, coatings), etc., made of metal, synthetic resin, ceramic materials, cement, etc. The one that is configured by the format is the target. When installing a double-sided solar cell module on a newly installed / existing roof, the solar cell module of the present invention is newly installed by disposing a reflector (the difference from the above (1) Because there is no need to do this, the structure of the crosspiece and the fixing member is different), the new roof (material) itself functions as a reflector or reflector (layer) (material, color, etc.), and the reflective function on the construction target part A thing (paint etc.) etc. that give
In addition, when it is installed on a new or existing roof, the rain performance is borne by the roof on the back side of the module, so the function as a roofing material is not necessarily required as in (1) above. The structure of the crosspieces and the like changes (it can be simplified as compared with the roofing material type).

Thus, the installation structure of the present invention is a configuration in which the reflective material or the reflective portion of the above configuration is disposed on the back side of the double-sided light receiving solar cell module of the above configuration, and sunlight transmitted through the translucent region is transmitted. It is possible to irradiate the back surface side of the power generation region by reflecting with a reflecting material or a reflecting portion.
Therefore, the front and back of the double-sided light receiving cell can be effectively used for power generation, and there is no problem even in places where there is something that shields sunlight on the back side such as the roof surface. Larger power generation can be expected with the same installation area as that of the solar cell module.

  In order to apply the installation structure in a horizontal manner, horizontal rails having support portions on which the double-sided solar cell modules on the water side and the water side can be placed are disposed at predetermined intervals, and at least the It is only necessary that a reflective material or a reflective portion is disposed between the horizontal rails, and that the double-sided light receiving solar cell module is disposed so as to cover the upper part thereof.

As described above, the great feature of the installation structure of the double-sided light receiving solar cell module of the present invention is that it can be applied to the installation structure of a normal solar cell module in which one-side light receiving cells are arranged. In order to be able to securely and easily fix the underwater side end of the module in an integrated manner without incurring an increase in cost due to the use of In the installation structure in which horizontal rails (rail materials) having support portions on which the side modules can be placed are arranged at predetermined intervals and the modules are laid between the horizontal rails, the horizontal rails are laid on the water side of the horizontal rails. The module is mounted on a horizontal rail at the lower end, and the surface thereof is held by a mounting member attached to the horizontal rail. The mounting members are arranged at regular intervals in the longitudinal direction of the horizontal rail. As well as In the structure in which the horizontal beam and the mounting member are integrated by interposing the fixture, the double-sided light-receiving solar cell module having the above-described configuration is used as the module, and the reflecting material or reflecting portion having the above-described configuration is arranged on the back side thereof. You may make it do.
That is, in the above example, the installation structure of the double-sided light-receiving solar cell module of the present invention is applied to an example of the connection structure of the single-sided light-receiving solar cell module already proposed by the present applicant. In addition, the installation structure of the present invention can be easily applied to a side-by-side installation structure or connection structure using most single-sided solar cell modules proposed by the present applicant or other than the present applicant. And the above-mentioned effects can be added.

In order to apply the installation structure in a vertical manner, vertical beams having support portions on which the left and right double-sided light-receiving solar cell modules can be placed are disposed at predetermined intervals, and at least between the vertical beams It is only necessary that the reflective material or the reflective portion is disposed on the surface, and the double-sided light-receiving solar cell module is disposed so as to cover the top.
And, like the horizontal type, for example, in the vertical type installation structure or connection structure using most of the single-sided light reception type solar cell modules proposed by the applicant of the present application, the present invention is used as a solar cell module. In addition to using the vertically long double-sided light-receiving solar cell module, a reflecting material or a reflecting portion may be disposed on the back surface side, and the above-described effects can be added.

  In the first embodiment of the present invention shown in FIGS. 1A and 1B, a double-sided light-receiving solar cell module (hereinafter referred to as a double-sided light-receiving module) 1, 1 on the water side and water side can be placed. A horizontal rail (rail material) 4 having support portions 41 and 42 is disposed at a predetermined interval, and a reflector or a reflective portion (here, a reflection plate) 9 is disposed between the horizontal rails 4 and 4, and above that The double-sided light-receiving module 1 is disposed so as to cover the structure, and the double-sided light-receiving module 1, the crosspiece 4, and related members serve as a roof.

The double-sided light receiving module 1 used in the first embodiment sandwiches the front and back surfaces of a plurality of substantially rectangular double-sided light-receiving cells 10 with a surface protective material such as glass, which is a horizontally long base material 11 having optical transparency. The double-sided light receiving cells 10 and 10 which are sealed and are adjacent to each other in the lateral direction are arranged so as to be separated from each other with a predetermined interval.
This double-sided light receiving module 1 is configured such that a translucent region 1B in which no double-sided light-receiving cells are present is formed in the outer peripheral portion and the spacing between adjacent double-sided light-receiving cells 10, 10. It can be said that the existing power generation region 1A is divided into a substantially island shape in the light transmission region 1B.

  The reflecting material or reflecting portion (reflecting plate here) 9 used in the first embodiment is a white steel plate previously laid as a base material, and since metal is arranged on the entire surface, it is easy to process. Therefore, the cost is reduced and the base surface is entirely covered with metal, so that the fireproof performance is excellent.

  The configuration of the first embodiment other than the double-sided light receiving module 1 and the reflecting material or the reflecting portion 9 will be described. The horizontal beam 4 disposed at a predetermined interval in the flow direction, and the underwater of the horizontal beam 4 The mounting member 6A is attached to the side end, and the holding member 6C is interposed between the mounting member 6A and the double-sided light receiving module 1. The horizontal beam 4, the mounting member 6A, and both surfaces are interposed by the holding tool 6C. The light receiving module 1 is integrated.

  The horizontal rail 4 has a water-side support part 41 and a water-side support part 42 that support the edge in the flow direction of the double-sided light receiving module 1, and a mounting receiving part 49 to which a mounting member 6A described later is attached. It is the composition which has.

The water-side support portion 41 in the illustrated embodiment is in the form of a horizontal piece facing the water-side, and the water-side support portion 42 has an elastic material 46a inserted in a groove provided on the water-side that opens upward. It is a configuration.
Moreover, this horizontal rail 4 is the structure which has the support piece 43 which protrudes under water, and was made into the elongate material which has the same cross section in a length direction. Further, legs 44, 44 extending downward on the water side and water side, grounding parts 45, 45 contacting the ground surface 8 at the lower ends of the legs 44, and groove-like parts 47 in the length direction, 48 is provided in the upper and lower stages.
An elastic material 46b is mounted on the back side of the support piece 43 in a groove that opens downward, and the water-side edge of the double-sided light receiving module 1 is supported by the water-side support portion 42. At this time, since the elastic member 46a disposed above and the elastic member 46b disposed below are brought into contact with each other, they are sandwiched from above and below and attached in a sandwiched manner by an elastic action.
The support piece 43 is attached with a second horizontal rail 4B in a hooked manner, and a groove-shaped attachment receiving portion 49 is formed at the lower end of the second horizontal rail 4B.

  The attachment member 6A has a holding portion 61 that is disposed at a constant interval with respect to the longitudinal direction of the horizontal beam 4 and holds the surface of the water-side end portion of the double-sided light receiving module 1. It has the attachment part 62 which can be attached to the attachment receiving part 49, ie, can be attached.

  The holding portion 61 in the illustrated embodiment is an attachment piece that is attached to the surface of the water-side end portion of the double-sided light-receiving module 1, and is an upper horizontal piece of the attachment member 6A that is formed in a substantially U shape. The mounting portion 62 is an upward locking piece shape that can be engaged with the mounting receiving portion 49 of the horizontal rail 4 (4B), and is a lower horizontal piece of the mounting member 6A formed in a substantially U-shape. It is formed at the tip.

The holder 6 </ b> C is interposed between the attachment member 6 </ b> A and the double-sided light receiving module 1, so that the horizontal rail 4, the mounting member 6 </ b> A, and the double-sided light receiving module 1 are integrated.
The holding tool 6C of the illustrated embodiment is a material having elasticity (a shape having a substantially wedge-shaped insertion part), and is attached so as to be pushed into the back surface side of the holding part 61 of the mounting member 6A. As a result, a lifting force (elastic force) acts on the mounting member 6A, and the mounting portion 62, which is a locking piece, engages with the mounting receiving portion 49 of the horizontal rail 4 from below and is integrally fixed.

Further, in the illustrated embodiment, the discard plate 2B is arranged at the upper end of the horizontal rail 4 in the flow direction so as to support the left and right side ends of the double-sided light receiving modules 1 and 1.
The discard plate 2B is configured to have a ridge 22 at the substantially center and a plurality of water return portions 23 on the left and right sides thereof, respectively, along the length direction, and have a same cross section in the length direction. A material was used.

Further, in the illustrated embodiment, the joint cover 6 </ b> B is disposed to cover the left and right arrangement intervals of the double-sided light receiving modules 1, 1.
The joint cover 6B has a shape in which a flat water-like side is bent downward, and a fixing tool 6d such as a screw is driven in from the surface side and is fixed to the top of the raised portion 22 of the discard plate 2B.

  Hereinafter, the procedure for constructing the installation structure of the double-sided light receiving module 1 of the first embodiment will be described.

  First, in the first step, the reflector 9 was laid on the entire base surface. Since the reflecting material 9 is a white steel plate as described above, since the metal is arranged on the entire surface, the processing is easy, so the cost is reduced and the entire surface of the base surface is made of metal. Because it covers it, it has excellent fire protection performance.

  Thereafter, in the illustrated embodiment, the drainage member 2A is disposed along the flow direction. The drainage member 2A is a continuous material having a structure in which the upper ends of the side surfaces of the substantially flat bottom surface 21 raised in an inclined manner are bent inward in a substantially horizontal shape to serve as receiving parts. The bottom surface 21 of the drainage member 2 is the bottom surface of the drainage part, and is hereinafter referred to as a drainage part.

Next, in the second step, the drainage member 2 is disposed in a substantially orthogonal shape so that the edge of the horizontal rail 4 having the above configuration faces the drainage member 2.
The horizontal rail 4 is disposed in such a manner that the leg portions 44 and 44 are partially removed in advance before disposition and the upper portion of the leg portions 44 and 44 faces the drainage portion 21 of the drainage member 2.

Thereafter, the water-side edge of the scraper 2B is received and supported by the water-side support portion 42 of the horizontal rail 4 attached in the second step, and the water-side support portion of the horizontal rail 4 adjacent to the water-side side. It attaches to 41 so that the edge of the underwater side of the discard board 2B may be received.
Since the horizontal rail 4 is provided with the support piece 43 protruding downward as described above, the water-side edge of the discard plate 2B is connected to the support piece 43 and the water-side support portion 42. What is necessary is just to attach to a space | interval (space), and it attaches so that the edge of the lower side of the discard board 2B may be bridged over the upper surface of the water-side support part 41 and the upper surface of the support piece 43. As described above, the horizontal beam 4 is composed of the main body 4 and the second horizontal beam 4B. At this time, the second horizontal beam 4B is attached to the surface of the support piece 43 in a loose fit. State.

Subsequently, in the third step, the double-sided light receiving module 1 is laid between the horizontal rails 4 and 4 attached in the second step. Specifically, the water-side end portion and the water-side end portion of the double-sided light receiving module 1 are placed on the water-side support portion 42 of the upper horizontal rail 4 and the water-side support portion 41 of the lower horizontal rail 4. To support. At this time, since the discard plate 2B is provided as described above, the double-sided light receiving module 1 is provided so that the edge in the length direction is supported.
In this illustrated embodiment, the elastic members 46a and 46b are attached to the cross rail 4 as described above, and the water-side edge of the double-sided light receiving module 1 is attached between the elastic members 46a and 46b. The edge is sandwiched from above and below and attached in a sandwiched manner by an elastic action.
As described above, the second horizontal beam 4B is attached to the surface of the support piece 43 of the horizontal beam 4, but when the double-sided light receiving module 1 is disposed, a cushion material is placed on the second horizontal beam 4B. The double-sided light-receiving module 1 was placed in a mounting manner with 4c interposed.

Thereafter, the mounting member 6A having the above-described configuration is attached to the underwater end portion of the double-sided light receiving module 1 disposed in a loosely fitting manner, and the holder 6C, which is an elastic material having the substantially wedge-shaped insertion portion, is attached to the surface side. Then, the horizontal rail 4 and the mounting member 6A are integrated by inserting and interposing on the back side of the holding portion 61 which is an attachment piece. By attaching the holder 6C, an action of raising (pulling) the holding portion 61 works, and the engaging piece-like attachment portion 62 provided at the lower end of the holding member 6 is connected to the horizontal beam 4 (second horizontal beam). 4B) is engaged with the attachment receiving portion 49 from below.
As a result, the underwater side end portion of the double-sided light receiving module 1 is integrally fixed by the horizontal rail 4, the attachment member 6A, and the holder 6C.

  Thereafter, in the illustrated embodiment, the joint cover 6B is disposed so as to cover the left and right arrangement intervals of the double-sided light receiving modules 1 and 1 attached in the third step. In this illustrated embodiment, since the raised plate 22 is provided in the center of the discard plate 2B as described above, and the water return portions 23 are provided on the left and right sides thereof, respectively, the joint cover 6B. And a fixing tool 6d such as a screw can be driven and fixed to the raised portion 22.

The installation structure of the double-sided light-receiving module 1 of the present invention constructed according to such a procedure is as follows. The power generation region 1A where the double-sided light-receiving cells 10 exist, the double-sided light-receiving cells 10 around each double-sided light-receiving cell 10 and adjacent The reflective material 9 is disposed on the back surface side of the double-sided light receiving solar cell module 1 formed by the light-transmitting regions 1B formed at the disposition intervals between the light-transmitting regions 1B. Can be reflected by the reflecting material 9 and irradiated on the back surface side of the double-sided light receiving cell 10. Therefore, the front and back of the double-sided light-receiving cell 10 can be effectively used for power generation, and the single-sided light-receiving cell is usually arranged without any trouble even in a place where sunlight is shielded on the back side such as the roof surface. Larger power generation can be expected with the same installation area as that of the solar cell module.
In addition, since the installation structure of the present invention utilizes the reflection of sunlight by the reflecting material 9, it is not necessary to process the double-sided light receiving module 1 in a curved shape, the installation location is not limited, and a general house Etc.
Furthermore, in the installation structure of this invention, the translucent area | region 1B guides sunlight to the reflecting material 9 (or reflecting part), Comprising: Transmission of the sunlight to the back surface side of the reflecting material 9 (or reflecting part) Since it is blocked, it can also be applied to cases where sunlight irradiation is not desired or where the user does not want to look into the room from outside.

  Further, the installation structure of the illustrated embodiment is such that the underwater side end portion of the double-sided light receiving module 1 is integrally fixed by the horizontal beam 4, the mounting member 6A, and the holder 6C, and the horizontal beam 4 to be used is also used. Since both the attachment member 6A and the holder 6C are extremely simple members and do not require a special frame material, the cost can be reduced. In addition, since no cover material is used, the rainwater flowing down on the module 1 is not dammed up, and soil, dust, etc. contained in the rainwater are not accumulated, and the strength is improved during the negative pressure action and the flow direction is shifted. The stop can be reinforced. Therefore, the surface of the double-sided light-receiving module 1 can be maintained beautifully, without causing performance degradation such as power generation efficiency of the power generation region 1A, and without causing deterioration of the light transmission efficiency of the light transmission region 1B. Moreover, since the double-sided light receiving module 1 is integrated with the horizontal rail 4 by the mounting member 6A, the double-sided light receiving module 1 can be easily replaced by attaching and detaching the mounting member 6A.

Further, in this illustrated embodiment, the drainage member 2 is attached in the flow direction after the reflection material 9 is laid in the first step, and then disposed substantially orthogonally so that the edge of the cross rail 4 faces. Even if rainwater or the like wraps around the rear surface side of the discard plate 2B, it can be led to the drainage portion 21 of the drainage member 2 and flow down to the underwater side.
Further, since the horizontal beam 4 and the scraper plate 2B have the same cross section in the length direction as described above, the horizontal beam 4 and the discard plate 2B have a horizontal beam according to the length dimension of the double-sided light receiving module 1 to be used. 4 can be formed (cut) as appropriate, and the length of the discard plate 2B can be appropriately formed (cut) according to the length dimension of the double-sided light receiving module to be used. Any size double-sided light-receiving module can be handled very easily.
In addition, since the horizontal beam 4 of the illustrated embodiment is provided with the groove-like portions 47 and 48 at the upper and lower stages, even if rainwater may circulate to the back side of the double-sided light receiving module 1, It can lead to the drainage part 21 of the drainage member 2 from the shape parts 47 and 48, and can be made to flow down under water.

Further, in this illustrated embodiment, the horizontal rail 4 has a support piece 43 protruding downward, and the underwater side edge (11c) of the double-sided light receiving module 1 is placed on the support piece 43. Therefore, rainwater or the like traveling on the surface of the double-sided light receiving module 1 is surely guided and drained onto the double-sided light receiving module 1 adjacent to the underwater side.
Furthermore, in the operation of attaching the discard plate 2B in the second step, the edge on the water side may be attached in an insertion shape between the support piece 43 and the water side support part 42 (space). Since it is only necessary to attach the lower edge to the upper surface of the water-side support portion 41 and the upper surface of the support piece 43, the workability is excellent, and at least the water-side side of the discard plate 2B. The lifting of the edge is prevented by the support piece 43.
Further, in this illustrated embodiment, the raised portion 22 is provided substantially at the center of the discard plate 2B, and the water return portions 23 are provided on the left and right sides thereof along the length direction, so that the fixture for fixing the joint cover 6B is provided. 6d can be struck against the ridge 22 and rainwater or the like can surely flow down to the underwater side at the water return portion 32 even if rainwater or the like enters the back side of the joint cover 6B.

In the second embodiment shown in FIGS. 2 (a) and 2 (b), the used reflector 9II is not laid on the entire base as in the first embodiment, but is disposed between the cross beams 4 and 4. A white steel plate processed product (formed product), with its water-side and water-side ends raised and along the lower ends of the legs 44, 44 of the adjacent horizontal rails 4, 4. Except for the configuration in which the upright portions 91 and 91 are provided, the configuration is exactly the same as in the first embodiment, and therefore, the same reference numerals are given to the drawings and the description thereof is omitted. In addition, although this molded object was made into the reflecting material 9II, since the flat reflection part except the standing parts 91 and 91 is a part which mainly contributes to reflection, it is good also considering the said part as the reflection part 9II.
In the second embodiment, since the reflector 9II is a molded body, the construction procedure is different from that of the first embodiment. First, the step of disposing the drainage member 2A and the cross rail 4 on the base surface 8 is the first step. The reflector 9II is disposed between the crosspieces 4 and 4 as a second step after that, but the other procedures are exactly the same as in the first embodiment. Since the upright portions 91, 91 are provided at the end portions of the reflector 9II so as to be along the leg portions 44, 44, it is difficult to cause a deviation after the disposition, but as in the first embodiment, An adhesive (layer) may be interposed between the ground 8 and the ground 8.

FIGS. 3 (a) and 3 (b) show third and fourth examples using reflectors 9III and 9IV having different modes.
In the third embodiment shown in FIG. 3 (a), the reflector 9III is arranged so as to face the back side of the double-sided light receiving module 1 without being along the base surface 8 as in the other embodiments. The end portions 92, 92 on the water upper side and the water lower side are folded down and supported and engaged with the water upper support portion 41 and the water lower side support portion 42 of the adjacent horizontal rails 4, 4. Yes.
In the fourth embodiment shown in FIG. 3 (b), the upside portions along the lower ends of the leg portions 44, 44 of the adjacent horizontal rails 4, 4 are raised by raising the water-side and water-side ends of the reflector 9IV. Although the points 91 and 91 are provided in the same manner as the second embodiment (reflecting material 9II), the face plate portion 93 is formed in a substantially square wave shape.

  The fifth embodiment shown in FIGS. 4 (a) and 4 (b) and the sixth embodiment shown in FIGS. 5 (a) and 5 (b) are both sides using frame members 12a and 12b for increasing the rigidity of the module. A vertical beam 3 having support portions 31, 31 on which the left and right double-sided light-receiving modules 1 ′, 1 ′ can be placed using the light receiving module 1 ′ is disposed at a predetermined interval. In this configuration, the reflectors 9 and 9VI are disposed between the three, and the double-sided light receiving module 1 'is disposed so as to cover the upper part thereof.

  In the double-sided light-receiving module 1 ′ used in the fifth and sixth embodiments, the light-transmitting base material 11 ′ is vertically long, and the double-sided light-receiving cells 10 ′ and 10 ′ adjacent in the vertical direction are separated by a predetermined interval. Frame material 12a, 12a having a substantially U-shaped cross section on the side edge in the flow direction, and a frame material 12b having a substantially U-shaped cross section on the side edge in the left-right direction. The double-sided light receiving cell is substantially the same as the double-sided light-receiving module 1 used in the first embodiment except that 12b is provided. In this structure, a light transmitting region 1B ′ in which no double-sided light receiving cell 10 ′ exists is divided into a substantially island shape in the light transmitting region 1B ′. The double-sided light receiving cell 10 'has the same basic configuration as the double-sided light receiving cell 10 in the double-sided light-receiving module 1 used in the first embodiment except for the dimensions.

  The reflector 9 used in the fifth embodiment is exactly the same as the reflector 9 used in the first embodiment, and is laid on the entire base surface. Further, the reflective material 9VI used in the sixth embodiment has a configuration similar to that of the reflective material 9II used in the second embodiment. It is the structure which provided the standing part 94, 94 along the side surface downward direction of the vertical piece part of the hanging element 3B, 3B).

  In the fifth and sixth embodiments, the configuration other than the double-sided light receiving module 1 ′ and the reflectors 9 and 9VI will be described. A main body 3A continuous in the flow direction and a drainage member (drain guide) 3C are integrally assembled on the suspension 3B, and the reflector 9VI is provided between the vertical bars 3 and 3 adjacent in the left-right direction. (The reflecting material 9 is preliminarily laid), and a double-sided light-receiving module 1 ′ is disposed so as to cover the upper side, and the left and right side edges of the double-sided light-receiving module 1 ′ are attached to the vertical cap 5A. Holding it. In addition, 5B is a vertical cap coupling which connects vertical cap 5A, 5A in the figure. Further, the connection of the vertical bars 3 in the flow direction is performed by fitting a horizontal cap 7B to the joint discard plate 7A.

  The vertical beam 3 includes support portions 31 and 31 that support the left and right edges of the double-sided light receiving module 1 ′. Even if there is water from the left and right connection portions, Even if there is water from the connecting portion, the drainage portion 32 of the drainage member 3C can flow down.

  The lower hanger 3B is for fixing a base 3 (fixed portion) with a fixing tool 3e and fixing it to the base, and a central raised portion 34 of the drainage member 3C from above, And with the main body 3A disposed, the fixing tool 3f is driven and fixed integrally. Further, the vertical beam main body 3A is provided with a receiving portion 35 that can be elastically fitted from below at the lower portion of the support portion 31, and the support member suspension 3D is attached to the receiving portion 35. An elastic material 36 is fixed to the upper end of the support material suspension 3D, and the back surface of the double-sided light receiving module 1 ′ is supported via the elastic material 36.

The seventh embodiment shown in FIGS. 6 (a) and 6 (b) and the eighth embodiment shown in FIGS. 7 (a) and 7 (b) are used for a double-sided light receiving module of the present invention with respect to an existing or new folded roof. The double-sided light-receiving module 1 "used in the seventh and eighth embodiments has a frame material 12c including a hollow frame 121 on the back side at the side edge in the flow direction. 12c is provided with frame members 12d and 12d having a hollow frame portion 122 on the back side at the side edges in the left-right direction, and the rigidity of the module is further increased than the double-sided light receiving module 1 'of the fifth and sixth embodiments. It is an enhanced one.
And since these 7th, 8th Example is a structure which installs double-sided light reception type module 1 "on a folded-plate roof, the function as a roof will bear a folded-plate roof, and a double-sided light-receiving module There is no need to consider rain at the connection portion (adjacent portion) between 1 "and 1", and the structure can be simplified.

  The reflector 9VII used in the seventh embodiment is the same as the reflector 9III of the third embodiment in that it does not follow the folded plate roof as the base, but as shown in FIG. Standing pieces 93, 93 provided on the side edges are fixed between the side edges of the support members 7D, 7D adjacent in the left-right direction. Moreover, the reflection part 90 used for 8th Example is the structure which made the reflection part 90 the range which gave the reflective coating to the surface of the folded-plate roof of the range shown with a broken line in a figure.

  In addition, on the structure other than the double-sided light receiving module 1 ″ and the reflective material 9VII and the reflective portion 90 in the seventh and eighth embodiments, that is, a folded plate roof, on the casing 8A that is an I steel material, A lower holding member 8B, which is a substantially gate-like tight frame in which a mountain-like portion and a valley-like portion are alternately repeated, is fixed, and an upper holding member 8C is fixed to the top of each mountain-like portion of the lower holding member 8B. Between the upper holding members 8C and 8C adjacent to each other in the left-right direction, an exterior material 8D having both ends of a substantially flat face plate portion is inclined and disposed and held, and both end edges thereof are caulked. A pair of left and right carry-out stands 7C are attached to the fixed portion, and the support material 7D is fixed to the upper end flange portion of the carry-out stand 7C with bolts and nuts. Support the back of the That. A mounting bolt 7e is attached in advance to the upper end flange portion of the carry-out stand 7C, and a substantially U-shaped pressing member 7E is inserted into the mounting bolt 7e and fixed with a nut 7f. The edge in the flow direction of the double-sided light-receiving module 1 "is pressed and fixed by a substantially flange-shaped pressing portion formed on the left and right sides of the two.

Ninth embodiment of the present invention shown in FIGS. 8 and 9, the water lower end of the bifacial module 1 ⁰ is placed on rungs 4IX, mounting member having the surface thereof along a rung 4IX 6IX, and the mounting member 6IX is arranged at a constant interval with respect to the longitudinal direction of the horizontal beam 4IX, and the fixing tool 6e is driven from the upper side to the horizontal beam 4IX from the upper side of the horizontal beam 4IX. The crosspiece 4IX and the mounting member 6IX are integrated.
In addition, the reflecting material indicated by reference numeral 9IX in the figure also serves as a corrugated plate-like underlaying material, and has a double structure (waterproofing by the undercovering material 9IX and double-sided light receiving type) as a roof (rain-off). be one obtained by a waterproof) by the module 1 ^0, it is unnecessary and the construction of the drainage member. The support member 7G is fixed to the top of the peak portion 9B of the corrugated reflector 9IX.
Further, bifacial module 1 ⁰ in the ninth embodiment uses a double-sided light receiving cell 10 ⁰ having a reduced size in order to increase the versatility of the peripheral devices.

Reference numeral 49 ″ in the horizontal beam 4IX (second horizontal beam 4IXB) indicates a fixed portion into which a fixture 6e is driven from a covering portion 63 of a mounting member 6IX described later. The surface of the fixed portion 49 will be described later. A recess 491 with which the tip of the fixture 6e for fixing the attachment member 6IX abuts is provided. The lower end of the inclined fixed portion 49 "is folded back to the water side (return piece 492) and substantially It extends in a square shape.
Reference numeral 47 ″ extending in the length direction indicates a groove-like portion between the water-side support portion 41 and the water-side support portion 42.
Further, the leg portion 44 located on the water side is extended upwardly, "it is formed and the housing part 48" housing portion 48 is a groove-like space in which the upper opens into the back surface of the bifacial module 1 ⁰ The cable 101 located on the side was accommodated, and the upper part thereof was covered with the covering material 4C.
The second rungs 4IXB has a raised portion on the water side of the center, the cushion material 4d for受支the back surface of the solar cell module 1 ⁰ on the upper surface of the raised portion is fixed.

Said mounting member 6IX is, there is arranged at regular intervals to the longitudinal direction of the rungs 4IX, a holding portion 61 for holding the surface of the water lower end of the bifacial module 1 ^0, wherein It comprises a covering portion 63 that covers the lower end of the horizontal beam 4 (second horizontal beam 4IXB) (fixed portion 49), and a fixing tool 6e is driven from the covering portion 63 to be integrated with the horizontal beam 4IX. .

Holding portion 61 of the illustrated embodiment is a piece which extend along the surface of the water lower end of the bifacial module 1 ⁰ the polymerization form, the upper crosspiece of the mounting member 6IX formed in shape to substantially .
Further, the covering portion 63 is in the form of an inclined piece downward on the water side along the surface of the fixed portion 49 "of the horizontal beam 4IX (4IXB), and is formed in a depression 631 formed on the surface thereof. The horizontal beam 4IX and the mounting member 6IX are integrated by driving the fixture 6e with its tip abutted in. Note that the lower end of the covering portion 63 is folded back substantially upward in the water shape (return piece 622). And the return piece 632 is engaged with the return piece 492 at the lower end of the fixed portion 49 ".

In the ninth embodiment is construction by each such member, water lower end of the bifacial module 1 ^0, the rail member 4IX and the mounting member 6IX, is intended to be integrally fixed, using The rail member 4IX and the mounting member 6IX are extremely simple members, and the cost can be reduced.
Further, in the ninth embodiment, since the accommodating portion 48 is provided in the rail material 4IX so as to accommodate the cable 101 of the double-sided light receiving type module 1, not only the cable 101 is entangled but also sunlight is radiated. It also plays a role of preventing blocking (forming a shadow on the module surface).

Tenth to thirteenth embodiment shown in FIG. 10 (a) ~ (d) are rail member 4X～4 ₁₃ each are constituted by a single member, and the holding portion 61 of each mounting member 6X～6 ₁₃ solar The battery module 1 is integrated by interposing a holder 6C having elasticity in the thickness direction between the surface and the surface of the lower end portion of the battery module 1.
In addition, the drainage member 2 and the drainage part 21 are the same elongate materials as the said 2nd Example. In addition, as for the reflective material and the reflective portion, a reflector similar to that of the first embodiment may be disposed at a position indicated by reference numeral 9 in the drawing, and although not shown, the second to ninth embodiments are omitted. The configuration described in (1) may be used.

Retainer 6C illustrated embodiment is a material (shape having an insertion portion of the substantially wedge-shaped) fixed form having rubber elasticity, the retainer 6C on the back side of the holding portion 61 of the mounting member 6X～6 ₁₃ mounting as in arranged condition to cover the surface of the water lower end of the bifacial module 1, to fix the mounting member 6X～6 ₁₃ by implanting fixtures 6e from above or Underwater side upward in this state.

Attachment member 6 ₁₁ in the eleventh embodiment of the mounting member 6X and FIG 10 (b) in the tenth embodiment of FIG. 10 (a), both a substantially M-shape, implanted fixture 6e substantially vertically shape in securing the rail member 4X, 4 _11.
The difference between the two embodiments is that the length of the substantially horizontal horizontal piece for fixing the fixture 6e is slightly longer in the latter, and the lower end of the fixture 6e is located below the elastic material 6b, Even if rainwater may enter the back side of the mounting members 6X and 6V through the fixture 6e, the tenth embodiment exclusively receives the light on both sides of the lower stage. In the eleventh embodiment, it is guided to the groove portion 47 and led from the groove portion 47 to the drainage portion 21 of the drainage member 2 and flows down to the waterside. Can be made.
Incidentally, parts the rail member 4X, 4 ₁₁ in the tenth embodiment and the eleventh embodiment is made of a single member as described above, in the first embodiment driving a fastener 6e corresponding to the fixed portion 49 Although the reference numeral is not added except that is substantially horizontal piece-like, the groove-like space that opens upward corresponding to the accommodating portion 48, the cushion material 4d that supports the back surface of the double-sided light-receiving module 1, and the double-sided light-receiving type are also included. Elastic members 46a and 46b that hold the water-side edge of the module 1 in a sandwiched manner are also provided.

10 the mounting member 6 ₁₃ in the thirteenth embodiment of the attachment member 6 ₁₂ and FIG. 10 (d) in the twelfth embodiment of (c), the portion 63 'together driving a fastener 6e, 63 "are located in the inclined , the inclined portions 63 ', 63 "fixed portion 49 for supporting the' 49 'also because it is formed in the rail member 4 _12, 4 ₁₃ inclined, to compress the retainer 6C, compressed from above Even when the inclined portions 63 ′ and 63 ″ are in contact with the fixed portions 49 ′ and 49 ″, the driving operation can be performed while shifting downward, so that the fixing tool 6e can be stably driven at an appropriate position. Can do.
Differences in both embodiments, the attachment member 6 ₁₃ of the 13 embodiment, the projecting portion 64 projecting shape rather to water side is provided immediately above the driving portion 63 "of the fastener 6e, inclined The distance between the portion 63 ″ and the fixed portion 49 ″ is long, and the fixture 6e can be driven into an appropriate position more stably.

And in these 10th-13th Example, since the holder 6C which has elasticity in the thickness direction was used, it can be easily recognized when there is a deficiency in the driving of the fixture 6e. It can be repaired. In addition, the holder 6C in these tenth to thirteenth embodiments also contributes to elimination of rattling. Furthermore, since in the state where we arranged mounting member 6X～6 ₁₃ with intervening retainer 6C, the attachment member 6X～6 ₁₃ is floated from the bifacial module 1 and the rail member 4X～4 _13, fastener Since the floating is eliminated by driving 6e, it also serves as a guide for driving operation.

1, 1 ', 1 "Double-sided light receiving type (solar cell) module 10, 10' Double-sided light receiving cell 11, 11 'Base material 1A, 1A' Power generation region 1B, 1B 'Translucent region 2A Drainage member 21 Drainage part (bottom surface)
2B Scrap plate 22 Raised portion 23 Water return portion 3 Vertical beam 4 Horizontal beam 4B Second horizontal beam 41 Water-side support portion 42 Water-side support portion 43 Support piece 44 Leg portion 45 Grounding portion 46a, 46b Elastic material 47, 47 " , 48 Groove portion 48 "Housing portion 49 Mounting receiving portion 49" Fixed portion 6, 6IX, 6X, 6A Mounting member 61 Holding portion 62 Mounting portion 63 Covering portion 6B Joint cover 6C Holding fixture 6e Fixing tool 8 Lower ground 9, 9II-9IV, 9VI, 9VII Reflector 90 Reflector

Claims (2)

In an installation structure in which a double-sided solar cell module in which a plurality of double-sided light-receiving cells are arranged on a light-transmitting base material is laid as a horizontal roofing material ,
In the double-sided light receiving solar cell module, a light-transmitting region where the double-sided light-receiving cells do not exist is formed in the arrangement interval between adjacent double-sided light-receiving cells, and the power generation region where the double-sided light receiving cells exist is substantially an island in the light-transmitting region. Divided into
The horizontal beam having a support part and a groove-like part on which the double-sided solar cell module on the water side and the water side can be placed faces the drainage member arranged so that the edge thereof is along the flow direction. Attached and disposed at a predetermined interval, at least a reflecting material or a reflecting portion is disposed between the horizontal rails, and a double-sided light receiving solar cell module is disposed so as to cover the upper part thereof,
The back surface of the double-sided light-receiving cell by reflecting the sunlight transmitted through the light-transmitting region with the reflective material or the reflective portion by the reflective material or reflective portion that reflects the sunlight disposed on the back surface side of the double-sided light-receiving solar cell module An installation structure of a double-sided light-receiving solar cell module, characterized by irradiating the side. In an installation structure in which a double-sided solar cell module in which a plurality of double-sided light-receiving cells are arranged on a light-transmitting base material is laid as a roofing roof material,
In the double-sided light-receiving solar cell module, a light-transmitting region where the double-sided light-receiving cells do not exist is formed in the arrangement interval between adjacent double-sided light-receiving cells, and the power generation region where the double-sided light-receiving cells exist is substantially the light transmitting region. Divided into islands,
A vertical beam having a support portion on which the left and right double-sided solar cell modules can be placed and a drain guide are integrally assembled and disposed at a predetermined interval, and at least a reflector or a reflective portion is provided between the vertical beams. Is disposed, and a double-sided light receiving solar cell module is disposed so as to cover the upper side,
The back surface of the double-sided light-receiving cell by reflecting the sunlight transmitted through the light-transmitting region with the reflective material or the reflective portion by the reflective material or reflective portion that reflects the sunlight disposed on the back surface side of the double-sided light-receiving solar cell module An installation structure of a double-sided light-receiving solar cell module, characterized by irradiating the side.

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