JP4556956B2 - Installation method of solar cell module - Google Patents

Description

  In order to seal a solar cell formed on an electrically insulating film substrate with an electrically insulating protective material, a protective layer is provided on both the light-receiving surface side and the non-light-receiving surface side of the solar cell. It is related with the installation method of the provided solar cell module.

  Currently, clean energy research and development is underway from the standpoint of environmental protection. Among them, solar cells are attracting attention because their resources (sunlight) are infinite and pollution-free. A typical example of a solar cell (photoelectric conversion device) in which a plurality of solar cell elements formed on the same substrate are connected in series is a thin film solar cell.

  Thin-film solar cells are expected to become the mainstream of solar cells in the future because they are thin and lightweight, inexpensive to manufacture, and easy to increase in area, and are attached to roofs and windows of buildings in addition to power supply. Demand is also expanding for commercial and general residential use.

  Conventional thin-film solar cells have used glass substrates, but research and development of flexible solar cells using plastic films has been promoted in terms of weight reduction, workability, and mass productivity. Utilizing this flexibility, mass production became possible by the roll-to-roll manufacturing method.

  As the above thin film solar cell module, in order to seal the solar cell formed on the electrically insulating film substrate with an electrically insulating protective material, the light receiving surface side and the non-light receiving surface side of the solar cell What provided the protective layer in both is known.

  Since the protective material of the solar cell module is plastic, the strength against twisting and pulling force is weak, and there is a risk that the solar cell module may be damaged by external force during construction. Therefore, as described in Patent Document 1 and Patent Document 2, a reinforcing plate is provided on the entire back surface of the solar cell module, or as described in Patent Document 3, a reinforcing material and a power lead wire are used in a non-power generation area. A structure with the same structure has been developed.

  Further, as a method for installing the solar cell module on the roof or the like, the following methods are known. As a method for installing a solar cell module sealed with a resin protective material, for example, the method described in Patent Document 1 is known. FIG. 19 shows a schematic configuration thereof. In FIG. 19, reference numeral 920 denotes a roof base plate, and 910 denotes a receiving member of the solar cell module 800 attached to the base plate with bolts. The solar cell module is formed by bending a reinforcing plate, a filler, and a light-transmitting film of the solar cell module on the side opposite to the light receiving surface. When the solar cell module is installed, the bent portion is used as the receiving member. A method of fixing the solar cell module by being fitted to 910 is adopted.

On the other hand, the following method is known as a method for installing the glass cover type solar cell module. FIG. 17 is a partial plan view of the solar cell array, and FIG. 18 is a cross-sectional view taken along the line DD of FIG. The solar cell array 1 is configured by installing a plurality of solar cell modules 2 on a roof surface (not shown) in a planar shape, and further, a roofing material 4 is laid on the surface of the roof base plate 3 and a fixing member 5 is provided. It is fixed to the base plate 3 with a wood screw 6 or the like. In the solar cell module 2, four sides of a substantially rectangular flat glass 7 are held and fixed by a frame 8, and the frame 8 is fixed to a fixing member 5 by screws 9. On the other hand, when the solar cell module 2 is attached to the fixing member 5, the cable 11 connected to the terminal box 10 is electrically serially parallel with the cable 11 and the joint 13 of the adjacent solar cell module 2 through the through hole 12 of the frame 8. Connected to an inverter (not shown). Further, a cover member 14 is attached to the frame 8 of the adjacent solar cell module 2 to prevent rainwater from entering the attic. Note that the protruding portion 5a of the fixing member 5 has a role of not flowing into the field plate 3 even if rainwater enters, and although not shown, it flows to the eaves side along the roof inclined surface and is discharged outside. The
Japanese Patent No. 2651121 Japanese Patent No. 2719114 Japanese Utility Model Publication No. 55-25383

  By the way, in the case of the solar cell module described in Patent Document 3, there is a problem that there is no flexibility and the weight is increased. In the case of the solar cell module described in Patent Document 1, the weight of the module increases due to the entire surface reinforcement. In connection with the module installation method, the reinforcing plate, filler and translucent film are folded to the opposite side of the light receiving surface, resulting in poor workability and high processing costs, and large bending equipment. As a whole, the cost increases. Further, when the size of the solar cell module is reduced, the number of attachments increases when a certain size solar cell array is constructed, and the number of work steps increases. Moreover, a terminal and a cable are needed for every solar cell module, and the cost of a solar cell module increases also from this viewpoint.

  On the other hand, the method for installing the glass cover solar cell module has the following problems.

  (1) Since the solar cell module is heavy because glass is used, the size of about 90 cm × 90 cm, which is relatively frequently used, is about 8 to 9 kg. In particular, the larger the solar cell module, the heavier it becomes, the poorer the productivity of the glass plate, and the higher the cost.

  (2) Since glass cannot be directly fixed to the mounting base by screws or other means, a supporting frame (frame) that supports the glass is required. Since the support frame supports heavy glass, the support frame becomes a strong frame. As a result, the solar cell module becomes heavier and the cost of the support frame is added, resulting in an increase in cost.

  (3) Solar cell modules are mostly mounted on the roof of a house, and are difficult to carry when installed on roofs with poor scaffolding, and workability is poor. There is.

  (4) When constructing on an existing roof using lightweight tiles such as colonial, it is heavy and cannot be constructed without reinforcing the roof.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to maintain module strength while maintaining light weight and flexibility, and to facilitate installation and reduce costs. Another object is to provide a method for installing a solar cell module.

The above-mentioned subject is achieved by the following. That is, in order to seal the solar cell formed on the film substrate having electrical insulation with an electrically insulating protective material, a protective layer is provided on both the light-receiving surface side and the non-light-receiving surface side of the solar cell, In the solar cell module installation method in which the protective layer is extended to the side of the solar cell to form a non-power generation region, and in this non-power generation region, a mounting hole for installing the solar cell module is provided.
A fixing member for fixing the solar cell module fixed to an installation member such as a roof, and for fixing the solar cell module to the fixing member from above after placing the solar cell module on the upper surface of the fixing member A pressing tool and a fixing tool including an insertion pin or a tapping screw for fixing the pressing tool, the solar cell module, and the fixing member integrally are provided, and the fixing member has a substantially I-shaped cross section. The mounting rail is provided with a groove at a substantially central portion of the upper surface portion of the I-shaped cross section, each of the solar cell modules adjacent to the upper surface portion avoiding the groove is mounted, and the lower surface of the mounting rail The part is abutted and fixed to an installation member such as a roof base plate, and the presser has a T-shaped rail shape having a protrusion at the center of the flat plate. And the flat plate portion of the T-shaped rail that extends from the protrusion to the left and right is fitted into the gap between adjacent solar cell modules and the groove provided in the substantially central portion of the fixing member. The battery module is mounted in contact with the upper surface of the battery module, and the fixing is performed across the mounting hole provided in the non-power generation region of the solar cell module and the hole provided in the presser and the fixing member according to the hole. The solar cell module is installed by fixing the tool through (claim 1).

Further, in order to seal the solar cell formed on the electrically insulating film substrate with an electrically insulating protective material, a protective layer is provided on both the light receiving surface side and the non-light receiving surface side of the solar cell, In the solar cell module installation method in which the protective layer is extended to the side of the solar cell to form a non-power generation region, and in this non-power generation region, a mounting hole for installing the solar cell module is provided.
A fixing member different from the fixing member according to claim 1, and a presser and a fixing tool according to claim 1, wherein the different fixing member has a substantially U-shaped cross section, and both end portions thereof And a solar battery module adjacent to the upper surface portion of the U-shaped cross-section avoiding the gap, and mounted on the T-shaped rail of the presser. The protrusion is fitted in the gap between the adjacent solar cell modules and the gap between the different fixing members, the mounting hole provided in the non-power generation region of the solar cell module, and the presser and the fixing member according to the holes. A solar cell module is installed by penetrating and fixing the fixture across the provided hole (claim 2).

Further, in order to seal the solar cell formed on the electrically insulating film substrate with an electrically insulating protective material, a protective layer is provided on both the light receiving surface side and the non-light receiving surface side of the solar cell, In the solar cell module installation method in which the protective layer is extended to the side of the solar cell to form a non-power generation region, and in this non-power generation region, a mounting hole for installing the solar cell module is provided.
The solar cell module is formed into a substantially rectangular flat plate shape, and fixed to the fixing member according to claim 1 or 2 through a mounting hole provided in a non-power generation region on one opposite two sides of the four sides of the flat plate. At the same time, a fixing hole is opened at the same position as the mounting hole provided in the non-power generation area on the other two opposite sides, and the tip is folded back to provide a J-shaped flat-plate connecting bracket. The connection fitting on the upstream side of the surface faces the protective layer on the light-receiving surface side of the solar cell module with the front end folded part facing up, and the connection fitting on the downstream side faces the protective layer on the non-light-receiving surface side with the front folded part facing down. Attached to the front surface of each of the solar cell module connecting parts adjacent to the upper and lower sides of the inclined surface in the flow direction are fitted together and fixed by a fixing member such as a screw, a rivet or an adhesive. Characterized by installing a more photovoltaic modules (claim 3).

  According to the present invention, the solar cell module can maintain light weight, flexibility, and module strength, can be easily installed, and can reduce the cost as a whole. Also, according to the installation method, the safety against the installation roof can be achieved. Is sufficient, and workability can be improved and installation costs can be reduced. Furthermore, when installing the solar cell module on the inclined surface, as described above, a connecting bracket having a J-shaped cross section is provided, and the folded portion of the connecting bracket of the solar cell module adjacent to the roof inclined surface in the flow direction is provided. The solar cell module can be suitably installed on the inclined surface by fitting and fixing with a fixing member such as a screw, rivet, or adhesive.

  Embodiments of the present invention will be described below with reference to the drawings. First, the configuration of the solar cell module related to the installation method of the present invention will be described.

(Embodiment 1)
FIG. 1 is a top view of a solar cell module according to the present invention, and FIG. 2 is a cross-sectional view taken along line AA in FIG. As shown in FIGS. 1 and 2, in order to seal the solar cell 100 formed on the electrically insulating film substrate with an electrically insulating protective material, the light receiving surface side and the non-light receiving surface side of the solar cell. In the solar cell module 120 provided with the protective layers 100A and 100B on both sides, the protective layer is extended to the side of the solar cell 100 to form a non-power generation region. A mounting hole 117 is provided. The protective layers 100A and 100B in this embodiment include a number of layers as will be described later. As described above, according to safety and strength such as waterproofing and insulation, installation conditions, and other needs, one of the protective layers. The part can be omitted as appropriate.

  1 and 2, a solar cell 100 has a first protective layer 101 made of EVA on the upper surface on the light receiving surface side (light incident side), and a second protective layer made of ETFE or CPF on the upper surface. 102, a third protective layer 103 in which a glass nonwoven fabric is filled with EVA on its upper surface, and a fourth protective layer 104 made of ETFE on its upper surface, while the non-light-receiving surface side of the solar cell 100 (light incident) A lower protective layer 105 on the opposite side), a fifth protective layer 105 made of EVA, a lower protective layer 106 made of ETFE or CFP or PI, and a lower surface made of EVA. The seventh protective layer 107 and the lower surface thereof are integrally sandwiched and joined by an eighth protective layer 108 made of a metal plate of stainless steel, aluminum, or iron plate.

  Here, the first protective layer 101 and the fifth protective layer 105 seal the solar cell 100, and alleviate and suppress the mechanical stress and thermal stress from being applied to the solar cell 100. The protective layer 102 is waterproof and moisture-proof, the third protective layer 103 is a mechanical shock and stress-relieving role from the outside, and the fourth protective layer 104 is dusty and has a light shielding substance attached to the surface. It is to suppress. Further, the sixth protective layer 106 plays a role of electrical insulation between the solar cell 100 and the eighth protective layer 108 in addition to the role of waterproofing and moisture-proofing, and the seventh protective layer 107 is bonded and mechanically The eighth protective layer 108 serves as a mechanical strength body, and serves to alleviate thermal stress.

  On the other hand, on both sides of the solar cell 100, strip-shaped power lead wires 109 such as plated copper foil wires are arranged on substantially the same plane as the solar cell 100, and a conductive adhesive tape or a copper foil wire is soldered. The solar cell 100 and the power lead wire 109 are electrically connected by the connecting wire 110 to be used. A terminal box 111 is bonded or fixed to the surface of the eighth protective layer 108 located at the end of the power lead 109 with a screw (not shown) or the like, and passes through the eighth protective layer 108 from the fifth protective layer 105. The lead wire 113 is electrically and mechanically connected and fixed to the power lead wire 109 by soldering or the like through the opened hole 112. The other end portion of the lead wire 113 is electrically and mechanically connected and fixed to the conductor portion 115 of the cable 114 attached to the terminal box 111 by screws 116 or soldering (not shown). The hole 112 has a sufficiently large hole diameter as compared with the thickness of the lead wire 113, and the electrical insulation between the eighth protective layer 108 and the lead wire 113 is maintained. A method of covering the covered electric wire or the insulating tube or filling the hole 112 with an insulating resin is employed.

  On the other hand, the first protective layer 101 to the eighth protective layer 108 extend to the side of the solar cell 100 to form a non-power generation region. A mounting hole 117 is provided from the protective layer 104 through the eighth protective layer 108 to constitute a rectangular flat plate solar cell module 120 as a whole.

  In this configuration, when the fixing member described later is attached with a screw or the like through the attachment hole 117, the first to seventh protective layers, particularly the third protective layer, in addition to the mechanical strength body of the eighth protective layer 108. 103 serves as a mechanical strength body, and other protective layers, in particular, the first, fifth, and seventh protective layers 101, 105, and 107 serve as spring bodies when fastened with screws. Spring washers can be omitted. By adopting this configuration, it is possible to improve the construction strength without using the mounting frame and bending the non-power generation area, and against wind and rain and external mechanical and thermal stress. It is possible to provide a solar cell module that can sufficiently withstand.

(Embodiment 2)
3, 4, and 5 are top views of different solar cell modules according to the present invention, and FIGS. 4 and 5 are cross-sectional views taken along line BB in FIG. 3.

  3 and 4, the first protective layer 101 to the eighth protective layer 108 extend to the side of the solar cell 100 to form a non-power generation region, and avoid the power lead 109 in this non-power generation region. A strip-shaped flat plate reinforcing member 121 is inserted between the first protective layer 101 and the fifth protective layer 105 outside the first protective layer 101 and joined together by the first protective layer 101 and the fifth protective layer 105. A mounting plate 117 is provided through the protective layer 104 through the eighth protective layer 108 to constitute a solar cell module 120 having a rectangular plate as a whole.

  3 and 5, when the non-power generation region is formed by extending the eighth protective layer 108 from the first protective layer 101 to the side of the solar cell 100, only the sixth protective layer 106 or the fifth , 6 are made shorter than the other protective layers, and the power lead 109 is avoided in the non-power generation region outside the shortened protective layer, and the first protective layer 101 and the fifth protective layer The first and second protective layers 101 and 105 or the seventh protection are formed by inserting a band-like flat plate reinforcing member 121 between the first protective layer 105 or the first protective layer 101 and the seventh protective layer 107. The solar cell module 120 having a rectangular flat plate as a whole is formed by joining the layers 107 and penetrating the fourth protective layer 104 through the eighth protective layer 108 to provide mounting holes 117.

  The reinforcing member 121 is made of a metal material such as stainless steel, aluminum or iron plate, an inorganic or organic fiber material such as a glass nonwoven fabric or a glass woven fabric, an organic material such as a polyimide plate, or an organic material such as a glass fiber filled epoxy resin plate.・ Inorganic mixed materials are used.

  In this configuration, the reinforcing member 121 is an end strength reinforcing body of the solar cell module 120. The bending strength of the entire solar cell module 120 is improved, and a fixing member (to be described later) is attached with a screw or the like through the mounting hole 117. When attached, in addition to the mechanical strength body of the eighth protective layer 108, the third protective layer 103 functions as a connection carrier for serving as a mechanical strength body, and can improve the construction strength, A solar cell module that can sufficiently withstand wind and rain and external mechanical thermal stress can be provided.

  In addition to the two sides 122 where the power lead 109 is arranged, the reinforcing member 121 is also provided on the other two sides 123 orthogonal to each other by using the same method and material, so that the bending strength of the entire solar cell module 120 is increased. More improved. In this case, it is desirable to join the end portions of the reinforcing member 121 that abuts at the four corners by welding, fusing, adhesion, or the like in order to improve mechanical strength.

  Furthermore, the reinforcing member 121 can be provided only in a portion corresponding to the attachment hole 117 without providing the reinforcing member 121 on the entire periphery of the solar cell module as described above.

(Embodiment 3)
FIG. 6 is a cross-sectional view taken along the line AA of FIG. 1 in a further different configuration of the solar cell module according to the present invention. In FIG. 6, the first to eighth protective layers, the power lead wires, the terminal box, and the like are the same as those in the first embodiment, and a description thereof will be omitted. A grommet 131 is fixed in a mounting hole 117 that is formed in the non-power generation region by penetrating the fourth protective layer 104 to the eighth protective layer 108 outside the power lead 109. The eyelet 131 is formed by inserting a hollow metal pipe into the fixing hole 117 and caulking with a tool (not shown) from the fourth protective layer 104 and the eighth protective layer 108 side, and uses a hollow organic material pipe. It can also be configured by heat melting.

  This eyelet has a function of integrating the first protective layer 101 to the eighth one 108 as a mechanical strength holding body, and is intended to improve the mechanical strength at the time of construction of the solar cell module 120 as in the second embodiment. is there.

(Embodiment 4)
FIG. 7 is a cross-sectional view taken along line AA of FIG. 1, showing a further different configuration of the solar cell module according to the present invention. In FIG. 7, an inorganic fiber such as glass or an organic fiber nonwoven fabric such as aramid or nylon or a woven fabric is inserted as a filler 141 in the fifth protective layer 105.

  In this configuration, in addition to Embodiment 1, the mechanical strength of the solar cell module 120 is further improved, and the solar cell 100 is reinforced from the back side. Further, the solar cell module 120 is heat-sealed with a vacuum laminator device. In this case, the air is easily removed from the back side of the solar cell 100, that is, in the fifth protective layer 105, and the effect of removing bubbles remaining in the solar cell module 120 is aimed at.

(Embodiment 5)
FIG. 8 is a cross-sectional view taken along line AA of FIG. 1, showing a further different configuration of the solar cell module according to the present invention. In FIG. 8, the eighth protective layer 108 in FIG. 2 is removed, and a woven fabric of inorganic fibers such as glass or organic fibers such as aluminum or nylon is inserted as the filler 151 into the seventh protective layer 107. .

  This configuration is intended to reduce the weight of the solar cell module 120. For example, when the eighth protective layer 108 in FIG. 2 is an iron plate having a thickness of 0.5 mm × 90 cm × 90 cm, the weight is about 3.2 kg. Although it is lighter than the glass 7 of the 18 conventional example, when it is installed in a large amount on the roof, it becomes a considerable weight. In the case of the woven fabric of this configuration, the weight is about 500g to 1kg, and the weight can be reduced sufficiently, and the mechanical strength is slightly lower than that of the iron plate, but it can withstand sufficient use, and in addition the cost Can also be reduced.

(Embodiment 6)
9 and 10 show an embodiment of the solar cell module installation method of the present invention. FIG. 9 is a top view of the solar cell array, and FIG. 10 is a partial cross-sectional view taken along the line CC in FIG. In FIG. 9, a solar cell array 200 is configured by installing a plurality of solar cell modules 120 on a roof surface (not shown) in a planar shape.

  In FIG. 10, a roofing material 4 is laid on the surface of the roof base plate 3, and the cross-sectional shape is made of a metal such as aluminum having a substantially I-shape or a structural organic material such as an epoxy resin. A member 201 is fixed to the base plate 3 with a wood screw 6 or the like.

  The solar cell module 120 has the fourth protective layer 104 on the light incident side and the eighth protective layer 108 opposite to the light incident side, and the non-power generation region of the eighth protective layer 108 is made of, for example, butyl rubber. The upper surface of the upper rim 203 of the fixing member 201 is in contact with the configured cushioning material 202, and a gap 205 is placed between the side ends 204 of the adjacent solar cell modules 120.

  On the other hand, the presser 206 made of a metal such as aluminum having a substantially T-shaped cross section or a structural organic material such as an epoxy resin has a substantially central protrusion 207 inserted into the gap 205. And the front-end | tip part 208 is engage | inserted by the groove | channel 209 provided in the approximate center part of the fixing member 201. FIG.

  On the other hand, the flat plate portion 210 extending left and right from the protruding portion 207 abuts against the non-power generation region of the adjacent solar cell module 120 via the contact plate 211 made of an elastic organic material such as butyl rubber, and the presser 206 A hole 212 formed in the flat plate portion 210, a hole 213 formed in the backing plate 211, a mounting hole 117 of the solar cell module 120, a hole 214 formed in the cushioning material 202, and a hole 215 formed in the fixing member 201. The presser 206, the contact plate 211, the solar cell module 120, the buffer material 202, and the fixing member 201 are fixed integrally with the insertion pin 216 in communication. Further, the insertion pin 216 has a tip 217 that is larger than the other pin diameters in a cocoon shape, and is provided with a slit in the center so that it cannot be removed after being inserted.

  According to this structure, after fixing the I-shaped fixing member to the roof base plate at a predetermined interval, the solar cell module of the present invention is arranged on the upper surface thereof, and positioning is easily performed with the presser, and the insertion pin By fixing with, simple construction can be easily performed without having a special skill level. In addition, when the buffer material takes the solar cell module form described in Embodiments 2 and 3, since the elasticity in the thickness direction of the solar cell module cannot be expected, it is used as necessary. When the structure of the first embodiment is adopted, or when the backing plate has elasticity, and the elasticity can be expected in the period of using the solar cell array system, it may be omitted.

(Embodiment 7)
FIG. 11 shows a different embodiment of the solar cell module installation method of the present invention, and is a partial cross-sectional view taken along the line CC of FIG.

  11, the cross-sectional configuration is the same as in FIG. 10, and the fixing means is a screw-type tapping screw 230 instead of the insertion pin 216. The effect of the configuration is almost the same as that of the sixth embodiment.

  FIG. 12 is a cross-sectional perspective view of the fixing member and the presser of Embodiments 6 and 7, and these will be supplementarily described using the drawings.

  In FIG. 12, the fixing member 201 made of a metal such as aluminum or a structural organic material such as an epoxy resin has an I-shaped cross-sectional structure and has a rail structure, and its upper surface side is substantially at the center. Grooves 209 are provided in the longitudinal direction, and holes 215 are formed in the upper rim 203 extending left and right with the groove 209 as a boundary with the same pitch dimensions as the fixing holes 117 of the solar cell module 120.

  On the other hand, a lower rim 219 extends left and right from the stay 218 on the lower surface side of the fixing member 201, and the lower surface of the lower rim 219 contacts the roofing 4 in FIGS. Further, the lower rim 219 is provided with a projection 220 facing upward, which acts as a rain gutter so that if rainwater enters from the solar cell module 120 side, it does not leak into the attic. is there. A hole 221 formed in the lower rim 219 outside the protrusion 220 is a through hole for the wood screw 6 when the fixing member 201 is attached to the field board 3 via the roofing 4.

  The presser 206 made of a metal such as aluminum shown in FIG. 12 or a structural organic material such as an epoxy resin has a rail structure with a T-shaped cross section. 208 is configured to be fitted into the groove 209 of the fixing member 201.

  On the other hand, holes 213 are formed in the flat plate part 210 extending left and right around the protrusion part 207 with the same pitch as the fixing holes 117 of the solar cell module 120.

  Accordingly, the solar cell module 120 is sandwiched between the upper rim 203 of the fixing member 201 and the flat plate portion 210 of the presser 206 while positioning the adjacent solar cell module 120 in the left-right direction with the protrusion 207 of the presser 206, and the hole 213 These are fastened and fixed with screws or pins inserted into the holes 215.

(Embodiment 8)
FIG. 13 shows a further different embodiment of the solar cell module installation method of the present invention, which is a partial cross-sectional view taken along the line CC of FIG. 9, and is obtained by changing the structure of the fixing member of FIGS. is there.

  In FIG. 13, the roofing material 3 is laid on the surface of the roof base plate 3, and the cross-sectional shape is substantially U-shaped, and both end portions 302 are bent inward with a gap 303 at the center. A fixing member 301 made of a metal such as aluminum or a structural organic material such as an epoxy resin is fixed to the base plate 3 with a wood screw 6 or the like. As shown in the sixth embodiment, the solar cell module 120 and the like are disposed on the upper surfaces 304 of the both end portions 302, and are fixed integrally with a screw-type tapping screw 230 or the like. Details of these structures are the same as those in the sixth embodiment, and a description thereof is omitted.

  The gap 303 has the same function as the groove 209 in FIG. 12, and the protrusion 207 of the presser 206 is inserted. The space 306 inside the fixing member 301 serves as a rain gutter. The central portion of the bottom surface of the fixing member 301 has a raised portion 305, and this portion is fastened with a wood screw 6. The gap between the screws is sewn to prevent rainwater from entering the base plate.

  The fixing member of this configuration can be extruded by a metal mold, drawn, or molded (molded) as compared to the fixed member of FIG. 12, and can also be formed by sheet metal, satisfying the function as a fixed member, Can be manufactured at low cost.

(Embodiment 9)
14, 15, and 16 show an embodiment of the method of installing the solar cell module of the present invention on an inclined roof according to claim 3, FIG. 14 is a top view, FIG. 15 is a side view, and FIG. It is a perspective view which shows a metal fitting attachment structure.

  The connection bracket of the present invention is a means for connecting adjacent solar cell modules 120 with respect to the flow direction of the roof, and the fixing members 201 and 301 shown in the sixth to eighth embodiments are parallel to the flow direction of the roof (parallel). ) And the solar cell module 120 positioned in the direction perpendicular to the flow direction is fastened. On the other hand, the connecting metal fitting of the present invention connects the solar cell modules 120 adjacent to each other in the vertical direction in the flow direction of the roof. A connecting bracket is provided.

  14, 15, and 16, end portions 406 and 407 of the solar cell module 120 that are positioned in a direction perpendicular to the roof flow direction are bent at the front ends 402 so that the thickness of the connection fitting material is substantially the same or slightly. Here, the connecting metal fitting 401 having a substantially J-shaped cross section forming a wide meshing gap 403 is connected to the solar cell module 120 through a hole 405 formed in the solar cell module 120 and a hole 404 formed in the same size. It is fixed with a caulking pin 409. In addition, as a material of the connection metal fitting 401, a weather-resistant stainless steel plate, an aluminum plate, a metal plate such as a painted / plated iron plate, or a flat plate made of an organic material is used.

  The connection fitting 401 is attached at the end portion 406 located on the downstream side in the roof flow direction with the front end 402 of the connection fitting 401 facing downward and the flat portion 410 against the surface of the eighth protective layer 108 of the solar cell module 120. In contact with the end portion 407 located on the upstream side in the roof flow direction, the flat portion 410 is attached to the surface of the fourth protective layer 104 of the solar cell module 120 with the front end 402 of the connection fitting 401 facing upward. .

  Therefore, when the solar cell module 120 is installed on the roof, the tip 402 of the connection fitting 401 of the solar cell module 120 positioned vertically in the flow direction is engaged with the engagement gap 403 for installation.

  According to this configuration, during the rain, rainwater flows down the surface of the solar cell module 120, here the surface of the fourth protective layer 104, along the flow direction of the roof, and is connected at the end portions 406 and 407 in the flow direction. The bent tip 402 of the metal fitting 401 serves to drain water and has the effect of preventing rainwater from entering the attic. Moreover, it plays the role of fixing the upper and lower solar cell modules 120 with the connecting metal fitting 401, and prevents the solar cell module 120 from being damaged by strong winds and generating noise due to vibration.

The top view which shows the principal part structure of the solar cell module in connection with this invention. Sectional drawing of the solar cell module of FIG. The top view which shows the principal part structure of the different structure of the solar cell module in connection with this invention. Sectional view of the solar cell module of FIG. Sectional drawing of the structure of the solar cell module different from FIG. Sectional drawing which shows the principal part structure of the different structure of the solar cell module in connection with this invention Sectional drawing which shows the principal part structure of the further different structure of the solar cell module in connection with this invention. Sectional drawing which shows the principal part structure of the further different structure of the solar cell module in connection with this invention. The top view which shows the Example of the installation method of the solar cell module of this invention Sectional drawing which shows the installation structure of the solar cell module of FIG. Sectional drawing which shows the installation structure different from FIG. 10 of a solar cell module Perspective view of fixing member and presser Cross-sectional view showing different installation structures of solar cell modules The top view which shows the Example of the installation method to the inclined surface of the solar cell module of this invention Sectional drawing which shows the installation structure of the solar cell module of FIG. Perspective view of connecting bracket Top view showing an example of a conventional solar cell module installation method Sectional drawing which shows the installation structure of the solar cell module of FIG. The perspective view which shows the different installation method of the conventional solar cell module

Explanation of symbols

  100: solar cell, 100A: light-receiving surface side protective layer, 100B: non-light-receiving surface side protective layer, 101: first protective layer, 102: second protective layer, 103: third protective layer, 104: fourth Protective layer, 105: fifth protective layer, 106: sixth protective layer, 107: seventh protective layer, 108: eighth protective layer, 109: power lead wire, 110: connecting wire, 111: terminal Box: 112: Hole, 117: Mounting hole, 121: Reinforcing member, 131: Eyelet, 141: Filler, 201, 301: Fixing member, 206: Presser, 216: Insertion pin, 230: Tapping screw, 401: Connection Hardware.

Claims (3)

In order to seal the solar cell formed on the electrically insulating film substrate with an electrically insulating protective material, a protective layer is provided on both the light-receiving surface side and the non-light-receiving surface side of the solar cell, In the installation method of the solar cell module in which the protective layer is extended to the side of the battery to form a non-power generation region, and in this non-power generation region, a mounting hole for installing the solar cell module is provided.
A fixing member for fixing the solar cell module fixed to an installation member such as a roof, and for fixing the solar cell module to the fixing member from above after placing the solar cell module on the upper surface of the fixing member A pressing tool and a fixing tool including an insertion pin or a tapping screw for fixing the pressing tool, the solar cell module, and the fixing member integrally are provided, and the fixing member has a substantially I-shaped cross section. The mounting rail is provided with a groove at a substantially central portion of the upper surface portion of the I-shaped cross section, each of the solar cell modules adjacent to the upper surface portion avoiding the groove is mounted, and the lower surface of the mounting rail The part is abutted and fixed to an installation member such as a roof base plate, and the presser has a T-shaped rail shape having a protrusion at the center of the flat plate. And the flat plate portion of the T-shaped rail that extends from the protrusion to the left and right is fitted into the gap between adjacent solar cell modules and the groove provided in the substantially central portion of the fixing member. The battery module is mounted in contact with the upper surface of the battery module, and the fixing is performed across the mounting hole provided in the non-power generation region of the solar cell module and the hole provided in the presser and the fixing member according to the hole. A solar cell module installation method, wherein the solar cell module is installed by fixing the tool through. In order to seal the solar cell formed on the electrically insulating film substrate with an electrically insulating protective material, a protective layer is provided on both the light-receiving surface side and the non-light-receiving surface side of the solar cell, In the installation method of the solar cell module in which the protective layer is extended to the side of the battery to form a non-power generation region, and in this non-power generation region, a mounting hole for installing the solar cell module is provided.
A fixing member different from the fixing member according to claim 1, and a presser and a fixing tool according to claim 1, wherein the different fixing member has a substantially U-shaped cross section, and both end portions thereof And a solar battery module adjacent to the upper surface portion of the U-shaped cross-section avoiding the gap, and mounted on the T-shaped rail of the presser. The protrusion is fitted in the gap between the adjacent solar cell modules and the gap between the different fixing members, the mounting hole provided in the non-power generation region of the solar cell module, and the presser and the fixing member according to the holes. A solar cell module installation method, wherein the solar cell module is installed by penetrating and fixing the fixture across a hole provided. In order to seal the solar cell formed on the electrically insulating film substrate with an electrically insulating protective material, a protective layer is provided on both the light-receiving surface side and the non-light-receiving surface side of the solar cell, In the installation method of the solar cell module in which the protective layer is extended to the side of the battery to form a non-power generation region, and in this non-power generation region, a mounting hole for installing the solar cell module is provided.
The solar cell module is formed into a substantially rectangular flat plate shape, and fixed to the fixing member according to claim 1 or 2 through a mounting hole provided in a non-power generation region on one opposite two sides of the four sides of the flat plate. At the same time, a fixing hole is opened at the same position as the mounting hole provided in the non-power generation area on the other two opposite sides, and the tip is folded back to provide a J-shaped flat-plate connecting bracket. The connection fitting on the upstream side of the surface faces the protective layer on the light-receiving surface side of the solar cell module with the front end folded part facing up, and the connection fitting on the downstream side faces the protective layer on the non-light-receiving surface side with the front folded part facing down. Attached to the front surface of each of the solar cell module connecting parts adjacent to the upper and lower sides of the inclined surface in the flow direction are fitted together and fixed by a fixing member such as a screw, a rivet or an adhesive. Method of installing a solar cell module, characterized by placing more solar cell modules.

Images