WO2014076954A1

WO2014076954A1 - Solar cell module group

Info

Publication number: WO2014076954A1
Application number: PCT/JP2013/006697
Authority: WO
Inventors: 吉田　朋秀; 修司福持
Original assignee: 三洋電機株式会社
Priority date: 2012-11-14
Filing date: 2013-11-14
Publication date: 2014-05-22
Also published as: JPWO2014076954A1

Abstract

A solar cell module group (10) comprises: a plurality of solar cell modules (11) aligned and placed on a mount; and a water receiver (14) provided on the mount and covering the outer circumference of the solar cell modules (11) from the back side. It is preferable to use two types of water receivers (60, 70) as the water receiver (14).

Description

Solar cell module group

The present invention relates to a solar cell module group.

Patent Document 1 discloses a structure in which a wiring gutter manufactured by bending a steel plate is screwed onto a roof material, and a solar cell module is installed on the gutter. When installing solar cell modules on a roofing material or the like, a plurality of modules are often arranged side by side.

JP 2005-51083 A

By the way, depending on the construction form of the solar cell module group, a structure for preventing rainwater or the like from dripping on the back surface side is necessary. In addition, such a structure is, for example, simple and is not complicated to construct, and is desired not to affect the performance of the solar cell module.

The solar cell module group according to the present invention has a first surface and a second surface opposite to the first surface, and a plurality of solar cells arranged side by side on the gantry with the second surface facing the gantry side. A battery module and a water receiver provided on the mount and covering the outer periphery of the solar cell module from the second surface side.

The solar cell module group according to the present invention can prevent rainwater or the like from dripping onto the back surface side.

It is a front view of a carport provided with a solar cell module group which is an example of an embodiment of the present invention. It is a side view of the carport shown in FIG. FIG. 3 is a top view of the carport as seen from the direction of arrow α shown in FIG. 2. In FIG. 3, it is a figure which shows the state before attaching a solar cell module. It is a figure which shows a part of AA line cross section of FIG. It is a figure which shows the other part of the BB line cross section of FIG. It is the C section enlarged view of FIG. It is the D section enlarged view of FIG. It is the E section enlarged view of FIG. It is the F section enlarged view of FIG. It is a figure which shows the modification of the water receiving structure which is an example of embodiment of this invention. It is a figure which shows the modification of the water receiving structure which is an example of embodiment of this invention.

Embodiments according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments. The drawings referred to in the embodiments are schematically described, and the dimensional ratios of the components drawn in the drawings may be different from the actual products. Specific dimensional ratios and the like should be determined in consideration of the following description.

In this specification, “substantially **” means “substantially the same” as an example, and it is intended to include not only exactly the same but also what is recognized as substantially the same.

FIG. 1 is a front view showing a carport 100 to which a solar cell module group 10 which is an example of an embodiment of the present invention is applied. FIG. 2 is a side view of the carport 100.

The carport 100 includes a vertical beam 101 and a horizontal beam 102 (hereinafter collectively referred to as a “frame”) on which the solar cell module group 10 is installed. In the carport 100, a plurality (six) of vertical bars 101 are arranged at equal intervals on a plurality (three) of horizontal bars 102 arranged at equal intervals. The vertical beam 101 and the horizontal beam 102 are orthogonal to each other and are designed to be positioned at the end of each solar cell module 11 constituting the solar cell module group 10. One horizontal beam 102 is provided with two columns 103. The vertical beam 101 is inclined so that the column 103 side is positioned below, and the solar cell module group 10 installed thereon is also inclined similarly (hereinafter, the column 103 side is referred to as “eave side”, eave side). The other side is called “building side”).

The carport 100 is obtained by applying the solar cell module group 10 in place of a commonly used plastic roofing material. That is, the solar cell module group 10 also functions as a roof material that receives rain or the like. That is, in the carport 100, it is important to prevent dripping of rain water or the like on the back side. As described above, the carport 100 is suitable for a double-sided power generation type module because the base is located at the end of each solar cell module 11 so that light easily enters from the back side.

Although this embodiment illustrates the carport 100, the application form of the solar cell module group 10 is not limited to this. The solar cell module group 10 can be applied to, for example, a carport roof having a shape different from that of the carport 100 or an arcade roof. Moreover, it can also be applied to general uses installed on the roof of a house.

FIG. 3 is a top view of the carport 100 viewed from the direction of the arrow α in FIG. 2, that is, a view of the solar cell module group 10 viewed from the light receiving surface side. FIG. 4 is a diagram showing a state before the solar cell module is attached in FIG. 3. In FIG. 4, for clarity of the drawing, the description of the gantry is omitted, and only the water receiver 14 attached on the gantry is shown. Here, “light receiving surface” means a surface on which sunlight is mainly incident, and “back surface” means a surface opposite to the light receiving surface.

The solar cell module group 10 includes a plurality of solar cell modules 11 installed side by side on a gantry, and a water receiver 14 provided on the gantry and covering the outer periphery of the solar cell module 11 from the back surface side. As the water receiver 14, it is preferable to use two types of

water receivers

60 and 70. Moreover, the solar cell module group 10 includes a decorative cover 12 that is attached to the solar cell module 11 located at the end among the plurality of arranged solar cell modules 11 (hereinafter, also referred to as “end module”). Is preferred. The decorative cover 12 is preferably attached over the entire length of the outer periphery of the solar cell module group 10.

In the present embodiment, a total of 10 sheets, 2 vertically and 5 horizontally, are installed so that the longitudinal direction of the solar cell module 11 exhibiting a rectangular shape in plan view is parallel to the vertical rail 101, and all the solar cells Module 11 is the end module. Each solar cell module 11 is arranged on the same plane, and long sides and short sides face each other between adjacent modules. The plurality of arranged solar cell modules 11 have a rectangular shape in plan view as a whole. However, as a whole, the direction along the short side of each solar cell module 11 is the longitudinal direction. The “plan view” means a planar shape when viewed from a direction perpendicular to the light receiving surface.

In the solar cell module group 10, a seam portion 13 is provided at a seam between adjacent solar cell modules 11 and a seam between the solar cell module 11 and the decorative cover 12. Between the solar cell modules 11 adjacent to each other, the seam portion 13 is provided only in a portion where the long sides are adjacent to each other. The joint portion 13 is provided with a joining member 50 (see FIG. 7 described later) and the like. The joining member 50 connects, for example, adjacent solar cell modules 11 to each other. In this embodiment, the solar cell modules 11 and the like are fixed by the joining member 50 so as not to move. On the other hand, the short sides of the solar cell module 11 and the short side of the solar cell module 11 and the decorative cover 12 are not joined to each other. That is, they are not connected to each other by the joining member 50 and are not fixed to each other.

The water receiver 14 is provided directly below the joint portion 13 and directly below the portion where the short sides of the solar cell module 11 are abutted. Here, “directly below” means directly below in the direction from the light receiving surface to the back surface (the same applies hereinafter). In the present embodiment, the water receiver 60 is provided along the horizontal rail 102, and the water receiver 70 is provided along the vertical rail 101. For example, the water receiver 60 has a length substantially equal to the length of the short side of the solar cell module 11, and five water receivers 60 are provided for one horizontal crosspiece 102. For example, the water receiver 70 is composed of one member from the ridge side to the eaves side, and is provided in the same number as the vertical beam 101. The water receiver 70 is formed with a notch 74 at a portion intersecting with the water receiver 60. The water receiver 60 is fitted into the notch 74 and disposed on the water receiver 70. The water receiver 70 is fixed to the vertical rail 101 using a fastening member 71. As the fastening member 71, it is preferable to use a drilling screw with packing.

Hereinafter, each component of the solar cell module group 10 will be described in detail with further reference to FIGS. FIG. 5 is a diagram showing a part of the cross section along line AA in FIG. 3, and FIG. 6 is a diagram showing a part of the cross section along line BB in FIG. 7, 8, 9, and 10 are enlarged views of a part C and a part D in FIG. 5, and a part E and a part F in FIG. 6, respectively.

<Solar cell module 11>
The solar cell module 11 includes a solar cell panel 20 and a frame 21 attached to the edge of the solar cell panel 20 (see FIG. 3). A plurality of solar cell elements 22 are mounted on the solar cell panel 20. Further, on the back side of the solar cell panel 20, a terminal box 26 containing a connecting portion between a lead wire drawn from the end of the panel and a power line for outputting current from the solar cell module 11 is attached by an adhesive or the like. ing.

As shown in FIGS. 5 and 6, in this embodiment, the solar cell module 11 is fixed to the vertical beam 101 via the water receiver 14. Specifically, the solar cell module 11 is fastened to the water receiver 70. The water receiver 70 is fixed to the vertical beam 101 by the fastening member 71 as described above.

[Solar cell panel 20]
The solar cell panel 20 includes a plurality of solar cell elements 22, a first protection member 23 disposed on the light receiving surface side of the solar cell element 22, and a second protection member 24 disposed on the back surface side of the solar cell element 22. (See FIG. 5). The plurality of solar cell elements 22 are sandwiched between the first protection member 23 and the second protection member 24 and sealed with a filler 25. Moreover, the solar cell panel 20 is provided with the wiring material etc. which are attached to the electrode of the solar cell element 22 and connect the adjacent solar cell elements 22.

The solar cell element 22 includes a photoelectric conversion unit that generates carriers by receiving sunlight. In the photoelectric conversion unit, for example, a light receiving surface electrode is formed on the light receiving surface, and a back electrode is formed on the back surface. In addition, the structure of the solar cell element 22 is not specifically limited, For example, the structure in which the electrode was formed only on the back surface of a photoelectric conversion part may be sufficient.

The photoelectric conversion unit includes, for example, a semiconductor substrate such as crystalline silicon (c-Si), gallium arsenide (GaAs), indium phosphide (InP), an amorphous semiconductor layer formed on the substrate, and an amorphous semiconductor A transparent conductive layer formed on the layer. As a specific example, an i-type amorphous silicon layer, a p-type amorphous silicon layer, and a transparent conductive layer are sequentially formed on the light-receiving surface of an n-type single crystal silicon substrate, and i-type amorphous silicon is formed on the back surface. Examples include a structure in which a layer, an n-type amorphous silicon layer, and a transparent conductive layer are formed in this order. The transparent conductive layer may be composed of a transparent conductive oxide obtained by doping metal oxide such as indium oxide (In ₂ O ₃ ) or zinc oxide (ZnO) with tin (Sn), antimony (Sb), or the like. preferable.

The electrode includes, for example, a plurality of finger portions and a plurality of bus bar portions. The finger part is a thin line-shaped electrode formed over a wide range on the transparent conductive layer, and the bus bar part is an electrode that collects carriers from the finger part. The wiring material is attached to the bus bar portion.

For the first protective member 23, for example, a light-transmitting member such as a glass substrate, a resin substrate, or a resin film can be used. Among these, a glass substrate is preferable from the viewpoint of fire resistance, durability, and the like. As the second protective member 24, the same member as the first protective member 23 can be used, and a member that does not have translucency can also be used when light incidence from the back side is not assumed. In the present embodiment, a glass substrate having translucency is used for both the first protection member 23 and the second protection member 24. For the filler 25, for example, a resin such as ethylene vinyl acetate copolymer (EVA) can be used.

[Frame 21]
The frame 21 is a metal frame such as stainless steel or aluminum, and is preferably made of aluminum from the viewpoint of lightness. The frame 21 protects the edge of the solar cell panel 20 and is used for fixing adjacent solar cell modules 11 or fixing the decorative cover 12. The frame 21 is configured by combining a plurality of frames, for example, and surrounds the four sides of the solar cell panel 20.

7 to 10, the frame 21 attached to the long side of the solar cell panel 20 is shown as a frame 21A, and the frame 21 attached to the short side is shown as frames 21B and 21C. The

frames

21A, 21B, and 21C are fixed to each other using, for example, a corner piece that is press-fitted into a cavity of the main body 30 described later. Major differences in structure between the frame 21A and the frames 21B and 21C include the length in the longitudinal direction and the presence / absence of a collar 32 described later. Further, as a main difference in structure between the frames 21B and 21C, there is a dimension of a gap of the fitting portion 31 described later.

The frame 21 </ b> A includes a hollow frame main body 30 (hereinafter referred to as “main body 30”) and a fitting portion 31 into which an edge of the solar cell panel 20 is fitted. The main body 30 has a cavity extending in the longitudinal direction, and a cross section cut in a direction perpendicular to the longitudinal direction (hereinafter referred to as “width direction”) has a substantially rectangular shape extending slightly longer in the vertical direction. The fitting part 31 is constituted by an upper surface of the main body part 30 and a member having an L-shaped cross section provided on the main body part 30 and extending in the longitudinal direction. The fitting part 31 has a U-shape that opens in the direction in which the solar cell panel 20 is arranged in the width direction, and the solar cell panel 20 is fitted therein. Hereinafter, unless otherwise specified, the “cross section” of the frame 21 or the like means a cross section cut in the width direction. The “vertical direction” of the frame 21 and the like means the thickness direction of the solar cell panel 20, and the light receiving surface side is “upper” and the back surface side is “lower”.

The frame 21 </ b> A has a flange 32 projecting from the main body 30 on the side opposite to the side where the solar cell panel 20 is arranged (hereinafter referred to as “outside”) in the width direction. The collar portion 32 is used for fixing adjacent solar cell modules 11, fixing the solar cell module 11 and the decorative cover 12, and fixing the solar cell module 11 and the water receiver 70. The flange portion 32 may be formed on a part of the frame 21A, for example, only in the vicinity of both ends in the longitudinal direction or in the central portion, but is formed over substantially the entire length along the longitudinal direction of the frame 21 from the viewpoint of improving the fixability. It is preferred that

The collar part 32 preferably has an L-shaped cross section. The collar portion 32 protrudes further outward from the outer lower end of the main body portion 30. The collar portion 32 includes a base portion 33 and a claw portion 34. The base 33 extends in the width direction from the outer lower end of the main body 30 toward the outer side, and forms the same plane as the lower surface of the main body 30. The claw portion 34 extends upward from the tip portion outside the base portion 33. The claw part 34 plays a role of catching and stopping the joining member 50 and is preferably provided substantially perpendicular to the base part 33. The flange portion 32 is formed, for example, by bending a tip portion of a portion protruding outward from the lower end of the main body portion 30 along the vertical direction.

The length in the width direction of the flange portion 32 can be appropriately changed depending on the structure of the joint portion 13 and the like, but is preferably short in a range that does not affect the fixing property from the viewpoint of reducing the installation area of the solar cell module group 10. In the joint portion 13, the flange portions 32 of the adjacent solar cell modules 11 may be in contact with each other, but are preferably disposed to face each other with a gap through which a bolt 51 described later can be inserted.

The frames 21B and 21C have substantially the same configuration as the frame 21A, but are different in that the length in the longitudinal direction is different and the flange portion 32 is not provided as described above. Furthermore, the vertical intervals of some of the fitting portions 31 of the frame 21C are different. Specifically, in the present embodiment, the first protective member 23 extends greatly from the end of the second protective member 24 at the short side end edge to which the terminal box 26 is attached among the end edges of the solar cell panel 20. ing. And the fitting part 31 (refer FIG. 10) of the flame | frame 21C attached to this edge has a clearance gap smaller than the fitting part of another frame, and is designed in the dimension which can insert only the 1st protection member 23. Yes.

<Makeup cover 12>
The decorative cover 12 is attached to the outer periphery of the solar cell module group 10, that is, the end edge of the end module and the adjacent solar cell module 11 does not exist. The decorative cover 12 has a function of improving the design of the solar cell module group 10 by hiding the end module frame 21 and the water receiver 14 from the outer periphery of the solar cell module group 10 so as not to be seen. That is, it is preferable that the decorative cover 12 has a shape and size that can conceal the water receiver 70 disposed on the lower side.

The decorative cover 12 includes a decorative cover main body 40 (hereinafter referred to as “main body 40”) and an attachment 41 for fixing to the solar cell module 11 or the like. In the present embodiment, the water receiver 70 is disposed so as to extend further outward than the outer end portion in the width direction of the end module. Therefore, the main body 40 is bent in the middle so that the lower side is positioned outside the end module rather than the upper side so as not to contact the water receiver 70. The upper side of the bent portion is inclined toward the end module side with respect to the vertical direction, and the lower side extends below the water receiver 70 along the vertical direction.

The lower part of the main body 40 is bent toward the end module in the width direction to cover the gap with the vertical beam 101. The decorative cover 12 attached to the long side of the solar cell module group 10 is fixed to the vertical beam 101 using, for example, an angle piece 45 and a fastening member 46 (see FIG. 5). The eaves-side decorative cover 12 is preferably formed with a water drain hole 47 for draining rain water or the like flowing along the water receiver 70.

The length of the decorative cover 12 is not particularly limited, but it is preferable to prepare two types of lengths corresponding to the long side and the short side of the solar cell module 11. In the present embodiment, for example, a total of 14 decorative covers 12, two along the vertical rail 101 and six along the horizontal rail 102, can be used. Adjacent decorative covers 12 can be fixed to each other by a cover joint 48.

The attachment portion 41 has an upper surface portion 41a along the light receiving surface of the solar cell panel 20, and a side surface portion 41b having a vertical length substantially the same as that of the frame 21 and substantially perpendicular to the upper surface portion 41a. Further, a lower surface portion 41c that is substantially parallel to the upper surface portion 41a is formed from the lower end of the side surface portion 41b toward the main body portion 40, and an inclined surface portion 41d that is connected to the main body portion 40 is formed from the ends of the upper surface portion 41a and the lower surface portion 41c. Has been. Then, a hollow having a substantially pentagonal cross section surrounded by each surface of the attachment portion 41 is formed.

The attachment portion 41 has a flange portion 42 that protrudes toward the end module side from the position where the side surface portion 41b and the lower surface portion 41c are connected. The collar part 42 is used for fixing to the solar cell module 11 and fixing to the water receiver 70. As will be described in detail later, the solar cell module 11 and the decorative cover 12 are fixed using the same structure as the structure for fixing the solar cell modules 11 to each other by providing the collar portion 42 on the decorative cover 12. Is possible. The collar portion 42 may be formed on a part of the attachment portion 41, for example, only in the vicinity of both ends in the longitudinal direction or in the central portion. However, from the viewpoint of improving the fixability, the flange portion 42 extends over substantially the entire length along the longitudinal direction of the attachment portion 41. It is preferable to be formed.

It is preferable that the collar portion 42 has an L-shaped cross section. The collar portion 42 includes a base portion 43 and a claw portion 44. The base portion 43 extends in the width direction from the position where the side surface portion 41b and the lower surface portion 41c are connected to the end module side, and forms the same plane as the lower surface portion 41c. The claw portion 44 extends upward from the tip portion of the base portion 43 on the end module side. The claw portion 44 plays a role of hooking and stopping the joining member 50 and is preferably provided substantially perpendicular to the base portion 43.

The flange portion 42 and the flange portion 32 of the frame 21A may have different shapes, for example, by changing the shape of the claw portion, but are preferably substantially the same shape from the viewpoint of improving workability and fixing property. . Moreover, it is preferable that both dimensions, especially the width direction length, are substantially the same.

<Seam part 13>
The joint portion 13 includes a portion (i) for fixing the solar cell modules 11 to each other and a portion (ii) for fixing the long side of the solar cell module 11 and the decorative cover 12. Further, there is a joint portion 13 (iii) between the short side of the solar cell module 11 and the decorative cover 12. 7, 8, and 9, (i) is shown as a seam portion 13A, (ii) is a seam portion 13B, and (iii) is a seam portion 13C. As described above, the seam portion 13C is different from the seam portion 13B in that the solar cell module 11 and the decorative cover 12 are not fixed to each other.

A joint member 50 is provided in the joint portion 13A. The joining member 50 is attached over the flange portion 32 of each frame 21A formed along the long side of the adjacent solar cell modules 11, and connects the solar cell modules 11 to each other. The joining member 50 may be a short member provided only in the vicinity of the fastening portion (attachment position of the bolt 51), or may be a long member extending along the longitudinal direction of the frame 21A.

In this embodiment, a water receiver 70 is provided directly below the joint portion 13A, and the solar cell module 11 is installed on the vertical beam 101 via the water receiver 70. The water receiver 70 has a pedestal 75 on which each frame 21A of the adjacent solar cell modules 11 can be placed. The pedestal 75 is formed so that the center portion in the width direction of the bottom plate 72 of the water receiver 70 protrudes upward, and has a flat seat surface that supports each frame 21A at the same height at the upper end thereof. For example, a bolting structure in which a bolt shaft can be inserted and a bolt head is caught is formed on the seat surface. The bolt 51 inserted into the seating surface from the lower direction to the upper direction has the bolt head fixed by such a bolting structure, and the bolt shaft extends upward. For example, a nut for fixing the bolt head to the pedestal 75 is attached to the bolt shaft.

The joining member 50 is a presser fitting having a U-shaped cross section, for example. For example, a bolt hole into which a bolt can be inserted is formed in the joining member 50. After each frame 21A of the adjacent solar cell modules 11 is placed on the pedestal 75 with the bolt shaft of the bolt 51 interposed therebetween, each base portion 33 of each flange portion 32 is attached by the U-shaped end (leg) of the joining member 50. Press against the pedestal 75. Thereafter, a nut for pressing and fixing the joining member 50 to the base 33 is attached to the bolt shaft of the bolt 51. In addition to the bolt 51, a clip-type fastening member, a screw, or the like can be used as a fastening member for fixing each member. Since the joining member 50 is sandwiched between the main body portion 30 and the claw portion 34 and the movement in the width direction is restricted, the adjacent solar cell modules 11 are fixed so as not to move with respect to each other. When a long member is used as the joining member 50, it is preferable that there are at least two fastening points. For example, the fastening portion is provided slightly more in the longitudinal center than the fastening member 71 installed in the vicinity of both ends in the longitudinal direction of the frame 21A.

Furthermore, it is preferable to provide an intermediate cover member provided between the adjacent frames 21A in the joint portion 13A. The intermediate cover member can be composed of an intermediate cover 52 that hides the joining member 50 and the like so as not to be seen from the light receiving surface side, and an intermediate cover receiver 53 for fixing the intermediate cover 52. The intermediate cover 52 and the intermediate cover receiver 53 have a fitting structure that fits together. For example, the intermediate cover 52 enhances the design of the solar cell module group 10 and also has a waterproof function of preventing rainwater and the like from entering. The intermediate cover receiver 53 has, for example, a bolt hole, is disposed on the joint member 50, and is fixed to the water receiver 70 together with the joint member 50 by the bolt 51.

The joint portion 13B has the same fixing mechanism as the joint portion 13A except that one of the solar cell modules 11 is changed to the decorative cover 12. Also in the joint part 13B, the same joining member 50 as the joint part 13A can be used. Further, in the joint portion 13B, the same members as the joint portion 13A such as the bolt 51, the intermediate cover 52, and the intermediate cover receiver 53 can be used in addition to the joint member 50.

The joining member 50 is attached across the collar part 32 of the frame 21 </ b> A and the collar part 42 of the decorative cover 12. The joining member 50 presses the base portion 33 of the flange portion 32 and the base portion 43 of the flange portion 42 by tightening the bolt 51 inserted from the pedestal 75 side of the water receiver 70. The joining member 50 has one leg sandwiched between the body part 30 and the claw part 34 of the frame 21A, and the other leg sandwiched between the attachment part 41 and the claw part 44 of the decorative cover 12, and moves in the width direction. Since it is restrained, the solar cell module 11 and the decorative cover 12 are fixed so as not to be displaced from each other.

In the joint portion 13C, the same members as the

joint portions

13A and 13B, such as the joint member 50, the bolt 51, the intermediate cover 52, and the intermediate cover receiver 53, can be used. However, since the flange portion 32 is not formed on the short side frame 21B of the solar cell module 11 shown in FIG. 9, the short side of the solar cell module 11 and the decorative cover 12 are not fixed by the joining member 50. In the joint portion 13 </ b> C, it is preferable to provide a spacer 35 in which a bolt hole is formed on the seat surface of the pedestal 75 in order to align both legs of the joint member 50 at the same height. Thereby, the joining member 50 can be fastened stably and the decorative cover 12 can be fixed to the base 75.

<Water tray 14>
The water receiver 14 extends directly below the joint portion 13 and directly below the portion where the short sides of the solar cell module 11 are abutted, straddling each of the solar cell modules 11 and between the solar cell module 11 and the decorative cover 12. It is provided across. Thereby, the water receiver 14 can receive the rain water etc. which penetrate | invade into a back surface side from this part. The water receiver 14 may be configured by one type of water receiver (for example, the water receiver 70) having the same cross-sectional shape, but is configured by two types of

water receivers

60 and 70 having different cross-sectional shapes from the viewpoint of workability and the like. It is preferred that The water receiver 60 is provided along the short side of the solar cell module 11, and the water receiver 70 is provided along the long side of the solar cell module 11. The water receiver 70 fixes the solar cell module 11 and the like by a pedestal 75.

Since the water receiver 14 is provided across each of the adjacent solar cell modules 11 as described above, the edge of the solar cell module 11 is covered from the back surface side. The water receiver 14 is provided over the entire length of the edge of each solar cell module 11 by the

water receivers

60 and 70. There is a water receiver 14 directly under the frame 21, and there is also a water receiver 14 directly under the edge of the solar cell panel 20.

On the other hand, the water receiver 14 is preferably provided on the edge side of the solar cell module 11 rather than directly below the solar cell element 22. That is, the water receiver 14 is provided so that the widthwise end of the water receiver 14 does not reach the end of the solar cell element 22. Thereby, the incidence of light from the back side is not hindered, and damage to the solar cell element 22 due to the water receiver 14 can be prevented. The water receiver 14 may come into contact with the solar cell panel 20 or the like when an impact is applied to itself or the solar cell module 11, but with the above configuration, even when the contact occurs, Contact with the solar cell element 22 can be prevented. In particular, the water receiver 60 provided on the upper side is easily in contact with the solar cell panel 20. For this reason, the distance X2 (see FIG. 10) between the end of the solar cell element 22 and the end of the water receiver 60 in plan view (similar in cross section) is the distance between the end of the solar cell element 22 and the end of the water receiver 70. It is preferably longer than X1 (see FIG. 7). For example, when X1 = 0, it is preferable that X2> 0.

The water receiver 60 has a bottom plate 61 and side walls 62 extending upward at both ends in the width direction of the bottom plate 61. Since the water receiver 60 is fitted into the notch 74 and disposed on the water receiver 70 (see FIG. 4), the outer surface of the bottom plate 61 is preferably flat. The mounting structure of the water receiver 60 is excellent in workability, but the water receiver 60 may be directly fastened to the vertical rail 101 in order to improve the fixing property. In this case, for example, since the water receiver 60 is disposed on the water receiver 70 and floats from the vertical rail 101, a spacer is installed between the water receiver 60 and the vertical rail 101. For example, the side wall 62 is substantially perpendicular to the bottom plate 61, and the height thereof is set to be low as long as rainwater or the like does not leak out. The power line connected to the terminal box 26 is preferably disposed in the

water receivers

60 and 70, and the side wall 62 preferably conceals the power line.

The water receiver 60 is preferably provided directly below the terminal box 26 attached to the edge of the short side of the solar cell module 11. More preferably, the water receiver 60 is provided so as to protrude toward the center of the solar cell panel 20 from directly below the terminal box 26. Thereby, even if the terminal box 26 is peeled off from the solar cell panel 20 due to various external factors, the terminal box 26 can be received by the water receiver 60. In the example shown in FIG. 10, the side wall 62 of the water receiver 60 extends above the lower surface of the terminal box 26. In this case, it becomes easier to receive the terminal box 26.

FIG. 11 (cross-sectional view corresponding to FIG. 10) shows a modified example of the water receiver 60. In the example shown in FIG. 11, the installation position of the bottom plate 61 is the same as that in FIG. 10, but the height of the side wall 62 is lower, and the upper end of the side wall 62 is located below the lower surface of the terminal box 26. . In this case, even if the amount of water flowing into the water receiver 60 is large, the terminal box 26 can be prevented from being immersed in water. Alternatively, in the form shown in FIG. 10, a water level adjusting hole or notch may be formed in a part of the side wall 62 so that the terminal box 26 is not immersed in water.

A plurality of ribs 63 are provided on the inner surface of the bottom plate 61 for facilitating the flow of water along the longitudinal direction of the water receiver 60. The rib 63 is a protrusion formed on the inner surface of the bottom plate 61 and protrudes in the direction from the back surface toward the light receiving surface. The rib 63 is preferably formed over the entire length of the water receiver 60. The height (h ₆₃ ) of the rib 63 is lower than the height (h ₆₂ ) of the side wall 62, and h ₆₃ = h ₆₂ × 1/3 to 1/10 is preferable. If it is this range, the flow of water can be regulated efficiently, without impairing workability. In the example shown in FIG. 10, four ribs 63 having the same height are formed substantially parallel to each other at substantially equal intervals.

FIG. 12 (a cross-sectional view corresponding to FIG. 10) shows a modified example of the water receiver 60. In the example shown in FIG. 12, two types of

ribs

63A and 63B having different heights are formed. The rib 63A is disposed directly below the frames 21B and 21C, and the rib 63B is disposed directly below the terminal box 26. The height (h _63A ) of the rib 63A is higher than the height (h _63B ) of the rib 63B, and h _63A = h _63B × 1.5 to 5 is preferable. As described above, the water receiver 60 may come into contact with the solar cell module 11 when an impact is applied to itself or the solar cell module 11, but the contact occurs when h _63A > h _63B. Even in the case of contact, the contact between the water receiver 60 and the terminal box 26 can be prevented. That is, since the rib 63A and the frame 21 are preferentially contacted, it is possible to prevent the rib 63B from contacting the terminal box 26 and causing damage.

Similarly to the water receiver 60, the water receiver 70 includes a bottom plate 72 and side walls 73 that extend upward at both ends in the width direction of the bottom plate 72. As described above, the bottom plate 72 includes the pedestal 75 on which the solar cell module 11 and the like formed with the center portion in the width direction projecting are placed. The bottom plate 72 is fixed to the vertical rail 101 by the fastening member 71. For example, the side wall 73 is substantially perpendicular to the bottom plate 72, and the height thereof is set to be low as long as rainwater or the like does not leak out. However, the amount of water flowing through the water receiver 70 is larger than that of the water receiver 60, and when the power lines are arranged in the water receiver 70, the number of water lines is larger than that of the water receiver 60. Higher than that.

The above embodiment can be appropriately changed in design within a range not impairing the object of the present invention other than the above-described modifications. For example, in the above embodiment, the collar portion 32 is formed only on the long side of the solar cell module 11, but the collar portion 32 may be formed only on the short side, or the entire solar cell module 11 may be formed. The collar portion 32 may be formed around the circumference. Further, the solar cell module 11 may be arranged so that the long side of the solar cell module 11 extends along the horizontal rail 102. In this case, the water receiver 70 can be disposed on the water receiver 60.

According to the solar cell module group 10 having the above-described configuration, it is possible to prevent rainwater or the like from dripping onto the back side by the water receiver 14.

In the solar cell module group 10, rainwater or the like may enter the back side from the portion where the short sides of the solar cell module 11 are abutted or from the joint portion 13. By providing it, rainwater or the like can be prevented from dripping. For example, water that has entered the back side from the short side of the solar cell module 11 is received by the water receiver 60, flows on the water receiver 60, and flows down to the water receiver 70 disposed below the water receiver 60. Since the water receiver 70 is inclined in the longitudinal direction, rainwater flows to the eaves side and is discharged from the drain hole 47. It is preferable to provide eaves or the like below the drain hole 47. That is, the water receiver 14 sufficiently suppresses the occurrence of water leakage even when the solar cell module group 10 is applied as a roofing material.

In addition, by attaching the solar cell module 11 and the decorative cover 12 to the mount via the water receiver 70, the installation is facilitated and a more stable attachment form of the solar cell module 11 and the like is realized. Furthermore, the water receiver 60 is provided directly below the terminal box 26, thereby functioning as a tray when the terminal box 26 is dropped. In addition, by making the height of the rib 63A located directly below the frame 21 higher than the height of the rib 63B located directly below the terminal box 26, the rib 63B contacts the terminal box 26 and causes damage. To prevent.

Further, in the solar cell module group 10, the solar cell modules 11 can be fixed to each other, the solar cell module 11 and the decorative cover 12, and these and the mount can be fixed using the same joining member 50 or the like. Therefore, it is not necessary to prepare many kinds of joint members 50 and the like, which contributes to cost reduction and workability improvement.

10 solar cell module group, 11 solar cell module, 12 decorative cover, 13 seam part, 14 water receiver, 20 solar cell panel, 21 frame, 22 solar cell element, 23 first protective member, 24 second protective member, 25 filling Material, 26 terminal box, 30 frame body part, 31 fitting part, 32 collar part, 33 base part, 34 claw part, 35 joint spacer, 40 makeup cover body part, 41 attachment part, 42 collar part, 43 base part, 44 Claw part, 45 angle piece, 46, 71 fastening member, 47 drain hole, 48 cover joint, 50 joint member, 51 bolt, 52 intermediate cover, 53 intermediate cover receiver, 60, 70 water receiver, 61 bottom plate, 62

side wall

63, 63A, 63B ribs, 72 bottom plate, 73 side walls, 74 notches , 75 pedestal 100 carport, 101 vertical rails, 102 rungs, 103 posts.

Claims

A plurality of solar cell modules that have a first surface and a second surface opposite to the first surface, and are arranged side by side on the gantry with the second surface facing the gantry;
A water receiver provided on the mount and covering an outer periphery of the solar cell module from the second surface side;
A solar cell module group comprising:
The solar cell module group according to claim 1,
The solar cell module is a solar cell module group that is fixed to the mount via the water receiver.
The solar cell module group according to claim 1 or 2,
The said water receptacle is a solar cell module group provided ranging over each of this module in the joint part of the said adjacent solar cell module.
The solar cell module group according to any one of claims 1 to 3,
Further comprising a decorative cover attached to the solar cell module,
The water receiver is a solar cell module group provided across the module and the cover at a joint portion of the solar cell module and the decorative cover.
The solar cell module group according to any one of claims 1 to 4,
The said water receptacle is a solar cell module group provided in the edge side of the said solar cell module rather than just under the solar cell element mounted in the said solar cell module in the 1st direction which goes to the said 2nd surface from the said 1st surface. .
The solar cell module group according to any one of claims 1 to 5,
The solar cell module has a terminal box attached to the second surface side,
The said water receptacle is a solar cell module group provided immediately under the said terminal box in the 1st direction which goes to the said 2nd surface from the said 1st surface.
The solar cell module group according to any one of claims 1 to 6,
The solar cell module group in which the said water receptacle is provided with the rib which protruded in the 2nd direction which goes to the said 1st surface from the said 2nd surface along the longitudinal direction of the said water receptacle.
The solar cell module group according to claim 7,
The water receiver is provided with a first rib and a second rib protruding in the second direction along a longitudinal direction of the water receiver,
The height of the first rib located immediately below the frame of the solar cell module in the first direction is higher than the height of the second rib located directly below the terminal box in the first direction. group.