JP6391929B2 - Solar cell module - Google Patents

Description

  The present invention relates to a solar cell module having a structure in which a reinforcing member is bonded to a solar cell panel with an adhesive member.

  Conventional solar cell modules, such as thin-film solar cell modules, are used in a state of being fitted into a frame (frame) in order to have dynamic strength and weather resistance as the panel area increases. . For example, Patent Document 1 discloses a configuration in which a frame is attached to four sides of a solar cell panel, that is, all peripheral edges to ensure the strength of the solar cell module.

  Thus, in a module in which a frame is attached to the entire periphery of the solar cell panel, there is a problem that a step of the frame is generated around the panel, and water (rain water or the like) is likely to accumulate on the panel surface. For this reason, Patent Document 1 discloses a configuration in which a cutout groove is provided in the frame and water accumulated on the panel surface is discharged from the cutout groove.

Republished patent WO2006 / 098473

  However, in the configuration of Patent Document 1, since the frame is attached to the four sides of the solar cell panel, there is a problem that the weight of the entire solar cell module increases due to the weight of the frame itself.

  This invention is made | formed in view of the said subject, and it aims at providing the solar cell module which can reduce the weight of the whole module and can ensure the drainage of the panel surface.

The present invention is a solar cell module having a rectangular solar cell panel, a frame member that holds an edge of the solar cell panel, and a reinforcing member disposed on the back surface of the solar cell panel , In order to solve the problem, the frame member is provided only on one opposing side of the solar cell panel, and both ends of the reinforcing member are disposed so as to fit into the cuts of the frame member . It is characterized by that.

  According to said structure, the frame member holding the edge part of a solar cell panel is provided only in one opposing edge side, and is not provided in the other opposing edge side. Thereby, compared with the structure which provides a frame member in all the peripheral parts of a solar cell panel, the weight reduction of a solar cell module can be achieved.

  Moreover, the rain water etc. which fell on the solar cell module flow down from the edge | side of the side where a frame member does not exist, and can ensure the drainage property of the surface of a solar cell panel. Thereby, it can prevent that the dust etc. which are contained in rain water adhere to the surface of a solar cell panel.

  In the solar cell module, the frame member is formed to be longer than a side of the solar cell panel to which the frame member is attached, and both end portions of the frame member protrude from end portions of the solar cell panel. can do.

  According to the above configuration, for example, when the solar cell module is erected with the side on which the frame member is not provided facing down, only the end of the frame member contacts the ground. Therefore, the end portion of the solar cell panel (the end portion on which the frame member is not provided) does not contact the ground, and the panel damage due to such contact can be prevented.

  In the solar cell module, the frame member may be bonded to the solar cell panel using an adhesive and a double-sided tape.

  According to said structure, a solar cell panel and a frame member can be firmly adhere | attached by using an adhesive agent, and handling of the module before an adhesive agent hardens | cures becomes easy by using a double-sided tape partially.

  The solar cell module has a reinforcing member disposed on the back surface of the solar cell panel, and the reinforcing member is bonded to the back surface of the solar cell panel, and both ends thereof are bonded to the frame member. It can be set as the structure which has.

  According to said structure, a solar cell panel, a frame member, and a reinforcement member have a firm support structure, and can improve the intensity | strength of a solar cell module.

  In the solar cell module, the frame member may be configured such that a groove is formed on the light receiving surface side surface of the solar cell panel.

  According to said structure, the drainage property of the surface of a solar cell panel can be improved more. For example, when the solar cell module is arranged on a roof having an inclination or a frame mounting frame, the frame member is arranged so as to be orthogonal to the inclination direction (one frame member is arranged on the lower side). Is done. At this time, rainwater or the like that has fallen on the solar cell module can flow not only from the left and right sides where the frame member does not exist, but also from the groove part in a downwardly inclined direction.

  Moreover, in the said solar cell module, the said frame member can be set as the structure by which the cover member is provided in the edge part.

  According to said structure, it can prevent that the edge part of a frame member is damaged.

  In the solar cell module of the present invention, the solar cell module is configured such that the frame member that holds the edge of the solar cell panel is provided only on one opposing side and not provided on the other opposing side. There is an effect that the weight can be reduced.

  Moreover, since rainwater or the like that has fallen on the solar cell module flows down from the side on which the frame member does not exist, the drainage of the surface of the solar cell panel can be ensured.

It is a perspective view which shows the whole structure of the solar cell module in Embodiment 1, and is the figure which looked at the solar cell module from the front surface side (light-receiving surface side). It is the perspective view which shows the whole structure of the solar cell module in Embodiment 1, and is the figure which looked at the solar cell module from the back surface side (opposite side of a light-receiving surface). It is sectional drawing which shows the basic composition of a solar cell panel. It is a projection view which shows the structure of the long side frame member used for a solar cell module. It is a projection view which shows the structure of the reinforcement member used for a solar cell module. It is a figure which shows the state which provided the adhesive member in the solar cell panel, (a) is sectional drawing, (b) is a top view. It is sectional drawing which shows the attachment structure of a solar cell panel, a long side frame member, and a reinforcement member. It is a projection view which shows the structure of the cover member used for a solar cell module. It is a figure which shows the state which attached the cover member shown in FIG. 8 to the edge part of a long side frame member, (a) is a figure which permeate | transmits and shows a cover member, (b) is an external view. (A) is the figure which looked at the solar cell module of the full size model from the back surface, (b) is the figure which looked at the solar cell module of the half size model from the back surface. It is a graph which shows the result of having calculated | required the maximum displacement amount which arises in a solar cell panel by changing the attachment position of a reinforcing member by simulation. It is sectional drawing which shows the state which has arrange | positioned the solar cell module to the inclined roof or mount frame. It is a perspective view which shows the whole structure of the solar cell module in Embodiment 2, and is the figure which looked at the solar cell module from the front surface side (light-receiving surface side). (A)-(d) is a figure which shows the example of cable extraction from the terminal box of a solar cell module.

[Embodiment 1]
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.

  1 and 2 are perspective views showing the overall configuration of solar cell module 1 according to Embodiment 1. FIG. FIG. 1 is a view of the solar cell module 1 viewed from the front surface side (light receiving surface side), and FIG. 2 is a view of the solar cell module 1 viewed from the back surface side (opposite side of the light receiving surface).

  The solar cell module 1 mainly includes a rectangular solar cell panel 2 that is formed in a vertically long shape, a pair of long-side frame members 3 and 3 that hold edges in the long-side direction of the solar cell panel 2, and at least It is composed of one reinforcing member 4 (two in FIG. 2). The reinforcing member 4 is arranged on the back surface of the solar cell panel 2 in parallel with the short side of the solar cell panel 2. The outer shape of the solar cell panel 2 in the present embodiment is approximately 1400 mm × 1000 mm. Moreover, although illustration is abbreviate | omitted, the output terminal box which takes out the output from the solar cell panel 2 is provided in the back surface of the solar cell panel 2. FIG.

  As shown in FIG. 3, the end section of the solar cell panel 2 is partially enlarged, and a transparent electrode film 22, a photoelectric conversion layer 23, and a back electrode film 24 are laminated in this order on a translucent insulating substrate 21. Is done. The transparent electrode film 22, the photoelectric conversion layer 23, and the back electrode film 24 constitute a solar battery cell 25. Further, a sealing film 26 and a back film 27 as a back surface protection sheet for weather resistance and high insulation are laminated on the back electrode film 24. In this way, the solar cell panel 2 has an integrated structure in which the whole is laminated and sealed.

As the translucent insulating substrate 21, a heat resistant resin such as glass or polyimide is used. Examples of the transparent electrode film 22 include SnO ₂ , ZnO, and ITO. The photoelectric conversion layer 23 may be a silicon-based photoelectric conversion film such as amorphous silicon or microcrystalline silicon, or a compound-based photoelectric conversion film such as CdTe or CuInSe ₂ . The back electrode film 24 is made of, for example, a ZnO transparent conductive film and a silver thin film. Further, as the sealing film 26, a polymer film made of EVA (ethylene vinyl acetate resin) or PVB (polyvinyl butyral resin) is used. Furthermore, the back film 27 has a three-layer structure of PET / Al / PET (PET: polyethylene terephthalate) and a three-layer structure of PVF / Al / PVF (PVF: polyvinyl fluoride resin film) in order to ensure moisture resistance. ing. That is, even if only PET or PVF can prevent the intrusion of adhering water droplets, the invasion of water vapor cannot be prevented. Therefore, the Al layer 27a which is a metal layer (waterproof layer) that can prevent the invasion of water vapor is interposed inside. .

  It is more preferable to use a thermoplastic ionomer resin as the sealing film 26. Since the thermoplastic ionomer resin has a low water vapor permeability, the moisture resistance of the solar cell module is improved. When a thermoplastic ionomer resin is used as the sealing film 26, it is not necessary to interpose a metal layer as the back film 27, and PET, PVF, or a film in which these are laminated can be used. For example, a two-layer structure of PET / PET, PVF / PVF, or PET and PVF can be used. In this case, the cost of the sealing film 26 can be suppressed by using the outer PET (or PVF) having higher weather resistance than the inner PET (or PVF). Further, by coloring the inner PET (or PVF) to a color similar to the color of the solar battery cell such as black, the appearance from the light receiving surface side of the solar battery panel can be improved. As a technique for improving the appearance, it is possible to take a method of coloring the sealing film such as black.

  The solar cell module 1 configured as described above is desirably made as light as possible from the viewpoints of transportation cost during transportation and reduction of a support load at an installation place during installation. Therefore, it is preferable that the solar cell module 1 is formed of a lightweight material such as aluminum, and the long side frame members 3 and 3 and the reinforcing member 4 are formed of conductive aluminum. That is, each is formed by extrusion of aluminum. However, these may be formed using aluminum alloy such as titanium, stainless steel, or duralumin.

  Next, the basic configuration of the long side frame member 3 and the reinforcing member 4 will be described.

[Description of long side frame member]
As shown in FIG. 4, the long side frame member 3 is formed to have a frame shape having a rectangular closed cross section composed of an outer wall surface 31, an upper wall surface 32, an inner wall surface 33, and a lower wall surface 34. . Further, an extended bent piece 35 is provided which extends upward from the outer wall surface 31 and is bent inward (right side in the figure).

  Thereby, the fitting groove part 37 in which the outer peripheral edge part of the solar cell panel 2 fits is formed between the upper wall surface 32 of the long side frame member 3 and the horizontal part of the extended bent piece 35. The width dimension (vertical dimension in FIG. 4) of the fitting groove 37 is set slightly larger than the thickness dimension (vertical dimension in FIG. 3) of the solar cell panel 2.

  Further, a fixing rib piece 36 in which a screw hole (female screw) 36 a for attaching and fixing the reinforcing member 4 with a screw or the like is formed at the lower portion of the inner wall surface 33 of the long side frame member 3. . The fixing rib piece 36 has a step corresponding to the thickness of the lower horizontal plate 42 (see FIG. 5) of the reinforcing member 4 by extending inward from the lower wall surface 34 and then bending upward and inward. The screw hole 36 a of the fixing rib piece 36 is provided corresponding to the attachment position of the reinforcing member 4. Further, a notch 36 b is provided at the inner end of the fixing rib piece 36 corresponding to the attachment position of the reinforcing member 4.

  Further, the long side frame member 3 is formed slightly longer than the long side of the solar cell panel 2, and when the long side frame member 3 is attached to the solar cell panel 2, the long side frame member 3 extends from both ends of the solar cell panel 2. The long side frame member 3 protrudes.

[Description of reinforcing members]
As shown in FIG. 5, the reinforcing member 4 is an H shape including an upper horizontal plate 41, a lower horizontal plate 42, and a vertical support plate 43 that supports both horizontal plates. Screw holes 42a for passing screws are formed at both ends of the lower horizontal plate 42 of the reinforcing member 4. The screw hole 42 a is provided corresponding to the screw hole 36 a of the long side frame member 3.

  A first reinforcing rib piece 42 b is formed in a convex shape on the lower surface of the lower horizontal plate 42 along the connecting portion with the vertical support plate 43. That is, since the weight of the solar cell panel 2 is concentrated on the vertical support plate 43 on the reinforcing member 4, the first reinforcing rib piece 42b is formed on this portion to increase the thickness and ensure the strength. doing.

  Furthermore, in the present embodiment, the second reinforcing rib pieces 42c and 42c are also formed along the longitudinal direction at both side edges of the lower surface of the lower horizontal plate 42. By forming the second reinforcing rib pieces 42c, 42c, the strength of the lower horizontal plate 42 itself can be maintained. The first reinforcing rib piece 42b and the second reinforcing rib piece 42c can be formed in a rectangular cross section, a circular arc shape, or the like.

  The length in the longitudinal direction of the upper horizontal plate 41 is substantially the length corresponding to the length of the notches 36b of the long side frame member 3 at both ends thereof compared to the lengths in the longitudinal direction of the lower horizontal plate 42 and the vertical support plate 43. It is shortened by minutes.

[Description of assembly process of solar cell module]
Next, a procedure for assembling the solar cell module 1 using each member having the above-described configuration will be described with reference to FIGS.

First, as shown in FIG. 6A, an adhesive member 51 is provided on the long side edge of the solar cell panel 2. In the present embodiment, a double-sided tape and an adhesive are used for the adhesive member 51 as shown in FIG. That is, a plurality of double-sided tapes are applied discontinuously along the long side edge of the solar cell panel 2, and an adhesive is applied to a part where the double-sided tape is not applied. And the fitting groove part 37 of the long side frame member 3 is engage | inserted in the long side edge part of the solar cell panel 2 in which this adhesive member 51 was provided (refer FIG. 7). Both ends of the long-side frame member 3 attached to the solar cell panel 2 slightly protrude from both end portions of the solar cell panel 2.
At this time, the adhesive member 51 not only simply bonds the solar cell panel 2 and the long side frame member 3 but also seals the gap between the solar cell panel 2 and the fitting groove portion 37 of the long side frame member 3. Have a role to play. For this reason, a double-sided tape having a sufficient thickness (about 1.0 to 1.2 mm) is used so as to fill a gap between the solar cell panel 2 and the fitting groove portion 37 of the long side frame member 3.

  Next, in this state, two reinforcing members 4 and 4 are arranged in parallel with a predetermined distance from the back surface side of the solar cell panel 2 (see FIG. 7). At this time, the vertical support plate 43 of the reinforcing member 4 is fitted into the cut 36 b of the long side frame member 3, whereby the reinforcing member 4 is positioned with respect to the long side frame member 3. Since both ends of the upper horizontal plate 41 are shortened by a length substantially corresponding to the length of the notch 36b of the long side frame member 3, the upper horizontal plate 41 does not interfere with the fixing rib piece 36. No. Further, a viscous adhesive member (not shown) is provided in advance on the upper surface of the upper horizontal plate 41 of the reinforcing member 4.

  When the reinforcing member 4 is arranged in this manner, screws are inserted from the screw holes 42a formed at both ends of the lower horizontal plate 42 of the reinforcing member 4, and fixed on the left and right long side frame members 3 and 3. Screw into the screw holes 36a, 36a of the rib pieces 36, 36 for use. Thereby, the reinforcing member 4 is fixed to the left and right long side frame members 3 and 3.

  At this time, the height positions of the first and second reinforcing rib pieces 42 b and 42 c formed on the lower horizontal plate 42 of the reinforcing member 4 are substantially the same as the height position of the lower wall surface 34 of the long side frame member 3. The height position of the fixing rib piece 36 formed on the inner wall surface 33 is set so as to be flush with each other. The height of the first and second reinforcing rib pieces 42b and 42c is such that the heads of the fixed screws do not protrude downward from the first and second reinforcing rib pieces 42b and 42c. Yes. Thereby, in the installation work to the roof etc. of the solar cell module 1, the 1st and 2nd reinforcement rib pieces 42b and 42c and the screw head which were formed in the lower horizontal board 42 of the reinforcement member 4 are working. There is no problem of getting caught.

  The long side frame member 3 is formed by extrusion processing of aluminum or the like, and the inside of the frame body composed of the outer wall surface 31, the upper wall surface 32, the inner wall surface 33, and the lower wall surface 34 is hollow. The cavity is opened at both ends in the longitudinal direction of the long side frame member 3. For this reason, it is preferable to cover the both ends of the long side frame member 3 with cover members 6 (see FIGS. 8 and 9) that cover the cavity.

  The cover member 6 is molded, for example, as an injection-molded product made of a resin such as polypropylene. As shown in FIG. 8, as shown in FIG. 8, the main surface portion 61 that covers the end portion of the long-side frame member 3 And an engaging portion 62 provided. In FIG. 8, three engaging portions 62A to 62C are provided.

  As shown in FIG. 9A, the engaging portions 62 </ b> A to 62 </ b> C sandwich the entire end portion of the long-side frame member 3 from the outside so that the cover member 6 is attached to the end portion of the long-side frame member 3. Install. Further, a protrusion is provided on the inner side of the main surface portion 61 of the cover member 6, and the protrusion is inserted into a hole formed on the inner side of the inner wall surface 33 of the long-side frame member 3. The cover member 6 can be more firmly attached to the side frame member 3, and the cover member 6 can be prevented from falling off. FIG. 9B shows an external appearance of the cover member 6 attached to the long side frame member 3.

  When the cover member 6 closes the cavity of the long side frame member 3, it is possible to prevent mud and pebbles from entering the cavity when the solar cell module 1 is stood and placed on the ground. Further, it is possible to prevent the long side frame member 3 from being scratched. Of course, since the hollow part of the long side frame member 3 is not exposed by the cover member 6, it is possible to avoid deteriorating the aesthetic appearance of the solar cell module 1.

  Further, in the cover member 6, the fitting concave portion 63 </ b> A and the fitting convex portion 63 </ b> B may be formed on each of the front surface side and the back surface side of the solar cell module 1. The fitting concave portion 63A and the fitting convex portion 63B are fitted together vertically when the solar cell module 1 is stacked, and serve as a guide for preventing positional deviation.

  In the solar cell module 1 described above, only the edge of the long side is held by the long side frame members 3 and 3 at the edge of the solar cell panel 2. However, this invention is not limited to this, The edge part of the solar cell panel 2 should just be the structure provided in only one opposing edge side, and not provided in the other opposing edge side. That is, only the edge of the short side of the solar cell panel 2 may be held by the frame member. Moreover, although the structure which provided the two reinforcement members 4 is illustrated in the solar cell module 1 of the said description, this invention is not limited to this. The relationship between the frame member and the reinforcing member is preferably as follows, for example.

  That is, when the solar cell module 1 is a full-size model (approximately 1400 mm × 1000 mm), as illustrated in the above description, the edge of the long side of the solar cell panel 2 is formed by the long side frame members 3 and 3. It is preferable to hold and provide two reinforcing members 4 and 4 (see FIG. 10A). On the other hand, when the solar cell module 1 is a half size model (approximately 700 mm × 1000 mm), the edge of the short side of the solar cell panel 2 is held by the short side frame members 3 ′ and 3 ′. It is preferable that the reinforcing member 4 is provided (see FIG. 10B).

  As described above, in solar cell module 1 according to the present embodiment, the frame member that holds the edge of solar cell panel 2 is provided only on one opposing side, and is not provided on the other opposing side. . Thereby, weight reduction of the solar cell module 1 can be achieved compared with the structure which provides a frame member in both the short side and long side of the solar cell panel 2, ie, the all peripheral part of the solar cell panel 2. FIG.

  Moreover, in the solar cell module 1 according to the present embodiment, the strength in the direction in which the frame member is not provided depends on the reinforcing member 4. For this reason, in order to maximize the load performance of the reinforcing member 4, in particular, when two reinforcing members are provided, it is preferable to design the mounting position of the reinforcing member 4 by simulation, for example. FIG. 11 shows a simulation of the maximum displacement generated in the solar cell panel 2 by changing the attachment position of the reinforcing member 4 from the end (short side) of the solar cell panel 2 in the solar cell module 1 of the full size model. It is a graph which shows the result calculated | required. Here, the simulation was performed with the attachment positions of the reinforcing members 4 being 200 mm, 250 mm, 300 mm, 350 mm, and 400 mm. As a result, when the mounting position of the reinforcing member 4 is 300 mm from the end (short side) of the solar cell panel 2, the maximum displacement is the smallest value. As a result, the optimal position of the reinforcing member 4 is 300 mm. The mounting position of the reinforcing member 4 is preferably in the range of 250 mm to 350 mm from the end (short side) of the solar cell panel 2. By setting this range, the maximum displacement of the solar cell panel can be reduced to 25 mm or less.

  When the solar cell module 1 according to Embodiment 1 is arranged on a sloped roof or a frame installation stand, as shown in FIG. 12, a frame member that holds the edge of the solar cell panel 2 is provided. These are arranged so as to be orthogonal to the above-described inclination direction (so that one frame member is arranged on the lower side). For this reason, a frame member does not exist in the edge part of the side parallel to the said inclination direction of the solar cell module 1. Therefore, rainwater or the like that has fallen on the solar cell module 1 can be prevented from flowing down from the left and right sides where the frame member does not exist and collecting on the surface of the solar cell panel 2. Thereby, it can prevent that the dust etc. which are contained in rain water adhere to the surface of the solar cell panel 2.

  In the solar cell module 1 according to Embodiment 1, the solar cell panel 2 is bonded to the long side frame members 3 and 3 by the bonding member 51. Thereby, while being able to improve the intensity | strength of the solar cell module 1, it can prevent that the long side frame members 3 and 3 remove | deviate from the solar cell panel 2 at the time of load application.

  The adhesive member 51 is used in combination with a double-sided tape and an adhesive. The adhesive member 51 can firmly bond the solar cell panel 2 and the long side frame members 3 and 3 by using an adhesive. Furthermore, by partially using the double-sided tape, handling before the adhesive is cured becomes easy.

  In the solar cell module 1 according to the first embodiment, the reinforcing member 4 is provided on the back surface of the solar cell panel 2. The reinforcing member 4 is bonded to the back surface of the solar cell panel 2 and is joined to the long side frame members 3 and 3 by screws or the like. Thereby, the solar cell panel 2, the long side frame members 3 and 3, and the reinforcing member 4 have a strong support structure, and the strength of the solar cell module 1 can be improved.

  In the solar cell module 1 according to Embodiment 1, the long side frame member 3 is formed longer than the long side of the solar cell panel 2, and when the long side frame member 3 is attached to the solar cell panel 2. The long side frame member 3 slightly protrudes from both end portions of the solar cell panel 2. Thereby, for example, when the solar cell module 1 is erected with the short side down, only the end of the long side frame member 3 comes into contact with the ground. Therefore, the end portion of the solar cell panel 2 (the end portion on which the frame member is not provided) does not contact the ground, and the panel breakage due to such contact can be prevented.

  In the solar cell module 1 according to Embodiment 1, a cover member 6 is provided at the end of the long side frame member 3. The cover member 6 is fitted into the end of the long side frame member 3 so as to cover the end of the long side frame member 3. The cover member 6 is provided with a protrusion, and the long side frame member 3 is provided with a hole. By inserting the protrusion of the cover member 6 into the hole of the long side frame member 3, the cover member 6 can be prevented from falling off.

  Further, in the cover member 6, the plurality of solar cell modules 1 are formed by forming the fitting concave portions 63 </ b> A and the fitting convex portions 63 </ b> B on the front surface side and the back surface side of the solar cell module 1. It serves as a guide to prevent misalignment when stacking. Thereby, damage etc. at the time of packing and transporting a plurality of solar cell modules 1 can be prevented.

[Embodiment 2]
Hereinafter, Embodiment 2 of the present invention will be described in detail with reference to the drawings.

  FIG. 13 is a perspective view showing the overall configuration of the solar cell module 11 in the second embodiment, and is a view of the solar cell module 11 as seen from the front surface side (light receiving surface side). The solar cell module 11 in the second embodiment has a configuration that is substantially similar to the solar cell module 1 in the first embodiment. Here, only different parts will be described, and members having the same functions as those in the drawings described in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.

  As shown in FIG. 13, the solar cell module 11 uses long side frame members 3 ′ and 3 ′ instead of the long side frame members 3 and 3 in FIG. 1. The long side frame member 3 ′ is provided with a groove portion 38 at least at one position on the front surface side (the upper surface of the extended bent piece 35) of the solar cell module 11. The bottom surface of the groove portion 38 is formed to be substantially flush with the surface of the solar cell panel 2.

  As described in the first embodiment, when the solar cell module 11 is arranged on a roof having an inclination or a frame mounting frame, the long side frame members 3 ′ and 3 ′ are perpendicular to the inclination direction. Placed in. At this time, rainwater or the like that has fallen on the solar cell module 11 can flow not only from the left and right sides where the long side frame members 3 ′ and 3 ′ are not present, but also from the groove 38 in an inclined downward direction. Thereby, drainage on the solar cell module 11 is improved, and dust and the like contained in rainwater can be prevented from adhering to the surface of the solar cell panel 2.

[Embodiment 3]
The solar cell module in the present third embodiment has the same configuration as the solar cell module in the first or second embodiment, and only the terminal box and the cable portion are different. In the present embodiment, only the terminal box and the cable portion will be described.

[Example of cable removal from terminal box]
An example of cable removal from the terminal box is shown in FIG. FIG. 14A is an example suitable for a case where a single solar cell module is used alone, a case where solar cell modules are connected in series, and a case where a plurality of solar cell modules are connected to a trunk cable. 14 (b) is an example suitable for a case where a single solar cell module is used alone and a case where a plurality of solar cell modules are connected to a trunk cable. In the example of FIG. 14A, output cables and connectors are provided for plus and minus, respectively. In the example of FIG. 14B, only one two-core output cable is provided.

  FIGS. 14C and 14D are examples suitable for the case where a plurality of solar cell modules are connected in parallel. In the example of FIG. 14C, two output cables are provided for each of plus and minus. Further, in the example of FIG. 14D, two two-core output cables are provided.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

1,11 Solar cell module 2 Solar cell panel 3,3 'Long side frame member (frame member)
31 outer wall surface 32 upper wall surface 33 inner wall surface 34 lower wall surface 35 extended bent piece 36 fixing rib piece 36a screw hole 37 fitting groove portion 38 groove portion 4 reinforcing member 41 upper horizontal plate 42 lower horizontal plate 42a screw hole 43 vertical support plate 51 Adhesive member 6 Cover member

Claims (6)

A solar cell module having a rectangular solar cell panel, a frame member that holds an edge of the solar cell panel, and a reinforcing member disposed on the back surface of the solar cell panel,
The frame member is shall provided only on one face side of the solar cell panel, the outer wall surface, the top wall having an inner wall, and a frame shape having a rectangular closed cross section comprising a bottom wall The solar cell panel is formed between the upper wall surface and the horizontal portion of the extended bent piece, and is provided with an extended bent piece that extends upward from the outer wall surface and is bent inward. The fitting groove part into which the outer peripheral edge part fits is formed ,
The reinforcing member has an H-shaped cross section composed of an upper horizontal plate, a lower horizontal plate, and a vertical support plate that supports both horizontal plates,
The lower portion of the inner wall surface of the frame member, after extending inwardly from the lower end of the frame member is formed with a fixing rib pieces having a step that is bent upward and inward, to the tip portion of the step Is provided with a cut corresponding to the mounting position of the reinforcing member,
The solar cell module, wherein both ends of the reinforcing member are arranged such that the vertical support plate fits into the notch and the lower horizontal plate overlaps a tip portion of the step. The solar cell module according to claim 1,
Screw holes are formed on both sides of the cut in the frame member and both ends of the lower horizontal plate of the reinforcing member,
The solar cell module, wherein the reinforcing member is attached and fixed to the frame member by a screw inserted through the screw hole. The solar cell module according to claim 1 or 2,
A solar cell module, wherein a first reinforcing rib piece is formed in a convex shape on a lower surface of the lower horizontal plate of the reinforcing member along a connecting portion with the vertical support plate. The solar cell module according to claim 3, wherein
A solar cell module, wherein a second reinforcing rib piece is formed along a longitudinal direction on both side edges of the lower surface of the lower horizontal plate of the reinforcing member. The solar cell module according to claim 2, wherein
On the lower surface of the lower horizontal plate of the reinforcing member, a first reinforcing rib piece is formed in a convex shape along the connecting portion with the vertical support plate,
Second reinforcing rib pieces are formed along the longitudinal direction on both side edges of the lower surface of the lower horizontal plate of the reinforcing member,
The height of the first and second reinforcing rib pieces is formed such that the head of the screw does not protrude downward from the first and second reinforcing rib pieces. module. The solar cell module according to any one of claims 1 to 5,
Cover members are covered on both ends of the frame member,
The solar cell module, wherein the cover member is formed with a fitting concave portion and a fitting convex portion on each of a front surface side and a back surface side of the solar cell module.

Images