JP3552359B2 - Protective member for solar cell module boundary - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a protective member for securing waterproofness at the boundary of the solar cell module to be multiple sequences, to prevent the entry of water into the back surface side.
[0002]
[Prior art]
In recent years, solar cells have been incorporated into roofing materials and the like due to increasing interest in global environmental issues. FIGS. 6 and 7 show examples of application to a roof already proposed by the present applicant as an example of an exterior material having a power generation function. The figure shows an example in which a roof solar cell module having a power generation function (hereinafter simply referred to as a roof panel) is installed on a roof of a house as an exterior material for a general house. Specifically, the roof panel 3 in which the solar cell panel 29 is incorporated in the rectangular wooden frame 23 is installed on the main house 71 of the house 69 from the purlin 73 to the eaves 75. Therefore, in the structure shown in the figure, the roof base plate is omitted, and the roof panel 3 functions as a base plate. As described above, the main purpose of using the roof panel 3 as the roof board 3 is to install the roof panel 3 on the roof board. (1) The weight of the roof panel 3 increases and the weight burden on the house 69 increases. (2) If there is a gap between the base plate and the roof panel 3, there are concerns about problems such as corrosion of the base plate due to intrusion of water, which reduces the reliability of the waterproof surface. Because it is done. In the drawing, reference numeral 77 denotes a skylight for lighting, and 47 denotes a roof material fitted into a maintenance section of the roof panel.
[0003]
[Problems to be solved by the invention]
Since a plurality of such conventional roof panels 3 are arranged and installed on the roof while having the function of a field board, waterproofing between two adjacent roof panels is extremely important. That is, when water infiltrates from the boundary between two adjacent roof panels 3, 3, the water leaks as it is and damages indoors. As an example of the waterproofing process, for example, a method of attaching an adhesive butyl rubber sheet to an end surface of the wooden frame 23 and abutting the end surfaces to block water from entering, or a method of adjoining the roof panels 3 and 3 A method of filling a boundary portion with a sealing material such as a silicone resin has been employed.
However, in such a waterproofing method using a butyl rubber sheet, the end faces of the wooden frame 23 need to be butted without gaps over the entire length in the longitudinal direction. It is difficult to maintain a perfect watertight structure for a long period of time due to the formation of gaps due to weathering of the sheet and the like.
Similarly, when filling the sealing material, it is unavoidable that a gap is generated at the boundary with time due to expansion and contraction and weathering of the roof panel 3 due to a temperature difference.
Therefore, it was not possible to completely shut off water at the boundary of the conventional roof panel 3 for a long period of time.
[0004]
[Means for Solving the Problems]
The present invention solves the above-mentioned problems, and reliably maintains waterproofness at the boundary between members exposed to wind and rain, such as exterior materials arranged in plurals such as building panels and solar cell modules arranged in plurals, for a long time. It is intended to provide a protective member that can be used .
[0005]
In the present invention, as the protection member at the boundary of the solar cell module, a seal member having a waterproof function provided on one main surface side of the long member is provided so as to straddle two adjacent solar cell modules. Two first engaging means which are attached to the entire surface and extend in the longitudinal direction are provided opposite to each other on the other main surface located on the back side of the one main surface. A first cover member screwed and fixed to the solar cell module in a region to be sandwiched;
A flange member which is externally fitted to the first cover member and provided on both sides in the width direction of the elongated member, and two second engagements engaging with the first engagement means on one main surface side; A second cover member fitted with the first cover member so that the first cover member is not exposed;
This can be realized by adopting a configuration including: Here, a dry joint material by independent foaming may be interposed in a space generated at a butt portion of the adjacent solar cell modules, and the first cover member may be fixed to the solar cell module and the dry joint material by screws.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
The protective member at the boundary of the exterior material and the protective member at the boundary of the solar cell module according to the present invention exhibit a long-term waterproof function by the following embodiments.
First, the first cover member is attached to, for example, a boundary between two adjacent exterior materials or a solar cell module such that one main surface side is the exterior material side. At this time, since the first cover member is attached so as to straddle the two exterior materials corresponding to the boundary and the upper surface of the end of the solar cell module, the seal member is not directly exposed to sunlight or wind and rain. Here, when attaching the first cover member, at least one of the two cover materials and the upper surface of the end portion of the solar cell module are respectively inserted from the screw holes attached to the region sandwiched by the first engagement means. Each screw can be set up and fixed. Further, the sealing member may be made to have adhesiveness or an adhesive may be applied, and the sealing member may be adhered or adhered to the upper surfaces of the two exterior materials and the end portions of the solar cell module. Therefore, the first cover member is securely attached to the exterior material and the solar cell module.
Next, a second cover member is fitted on the first cover member, and the second cover member is in an outer fitting relationship with the first cover member, and the second cover member is fitted. After fitting, the first cover member is not exposed. Here, the second cover member has, on one main surface side thereof, second engagement means which engages with the first engagement means provided on the first cover member, and are provided so as to face each other in the longitudinal direction. Therefore, when the second cover member is fitted, these are engaged with each other. Therefore, the first cover member and the second cover member are firmly connected so as not to be easily detached.
Therefore, first, the second cover member prevents water from reaching the first cover member, and even if water reaches the first cover member, the seal attached to the first cover member is prevented. The material prevents water from entering the exterior material and the boundary between the solar cell modules. Further, this sealing material is not directly exposed to sunlight, wind and rain as described above. As described above, the protective member of the present invention exerts a two-stage waterproofing function over a long period of time on the boundary between the exterior material and the solar cell module.
[0007]
【Example】
Subsequently, the details of the present invention will be described based on specific examples. FIGS. 1 and 2 show a case where an embodiment of the protection member 1 of the present invention is applied to a boundary of a roof panel 3 having a power generation function as an application example of a solar cell module (hereinafter simply referred to as a roof panel 3). Is represented. In the illustrated example, a sealing member 9 having a waterproof function is attached to one main surface 7 of the long member 5 having a total length capable of covering one side of the rectangular roof panel 3. A first cover member 15 provided with two first engagement means 13 and 13 extending in a longitudinal direction on the other main surface 11 side located on the back side, and a first cover member; 15 is a long member having an external fitting relation in the long width direction and having a mountain-shaped cross section, and the first engaging means 13, 13 on one main surface 7 side. The two second engaging means 17, 17 meshing with each other constitute the protective member 1 at the boundary of the exterior material, comprising the second cover member 19 provided to face each other in the longitudinal direction. Here, an example is shown in which a screw hole 21 for attachment is provided in a region of the first cover member 15 sandwiched by the first engagement means 13, 13.
On the other hand, as for the roof panel 3 to be treated, the heat insulating material 25 is accommodated in the internal space of the rectangular wooden frame 23, and the waterproof sheet 27 made of butyl rubber is provided on the heat insulating material 25, and the amorphous silicon solar cell panel Reference numeral 29 denotes a stack. A lower attachment member 31 is attached to the upper surface of the wooden frame 23, and an upper attachment member 33 is attached to the lower attachment member 31 in a fitting relationship. The lower mounting member 31 and the upper mounting member 33 constitute a solar cell mounting member 35. By sandwiching the solar cell panel 29 between these two mounting members 31, 33, the wooden frame 23 and the solar cell panel 29 The space is fixed.
[0008]
In such a configuration, first, the first cover member 15 is attached to the two exterior members, here, on the boundary of the solar cell attachment member 35 of the roof panel 3, but at this time, as shown in the drawing, the first cover member 15 is attached. 15 is attached so as to straddle the upper surfaces of the end portions of the two solar cell attachment members 35 corresponding to the boundary portions. At this time, as shown in the figure, a wood screw 37 or the like is inserted into the screw hole 21 provided in the first cover member 15, and is securely fixed by directly piercing the solar cell mounting member 35. Alternatively, a tap as the screw hole 21 may be formed in a predetermined position in advance. When the wood screw 37 is tightened, a large force is locally applied, so that the first cover member 15 may warp. However, an adhesive may be applied to the seal member 9 or the adhesive seal member 9 may be used. Is used, the adhesion between the first cover member 15 and the solar cell mounting member 35 can be more reliably ensured, and the formation of a gap due to this warpage can be reliably prevented. At the same time, of course, the waterproof performance is improved.
Therefore, even with the first cover member 15 alone, the seal member 9 is not directly exposed to sunlight, wind and rain.
The screw 37 may be attached to the butted portion of the solar cell attachment member 35 so as to reach the wooden frame 23 as indicated by a virtual line 37a.
[0009]
Further, in order to prevent the first cover member 15 from being exposed to rainwater, a second cover member 19 having a mountain-shaped cross section is fitted. Since the second cover member 19 is externally fitted to the first cover member 15, the flange 39 of the second cover member 19 is positioned outside the widthwise end face as shown in the figure. Will do. Therefore, after the second cover member 19 is fitted, the first cover member 15 is not exposed.
Here, the second cover member 19 has a second engagement means 17, which engages with the first engagement means 13, 13 provided on the first cover member 15 on one main surface 7 side thereof. Since they are provided facing each other in the direction, when the second cover member 19 is fitted, these are engaged with each other. The first engaging means 13 and 13 are erected from the other main surface 11 side of the first cover member 15 so that the structure is clear from the figure, and the second engaging means 17 and 17 which will be described later. The locking portion 41 is configured so that the tips of the engaging portions 41 mesh with each other. In the illustrated example, the locking portion 41 is provided toward the outside in the width direction of the first cover member 15, but may be provided toward the inside in the width direction. On the other hand, as is clear from the figure, the second engaging means 17, 17 are also erected from one main surface 7 side of the second cover member 19, and the first engaging means 13, A locking piece 43 that engages with the locking portion 41 of the thirteen is protruded.
When the second cover member 19 is fitted, the first engagement means 13, 13 and the second engagement means 17, 17 provided opposite to each other are engaged with each other while the distance between them is enlarged and reduced. 43 fits into the locking portion 41 and thereafter does not come off easily even if the second cover member 19 is pulled upward.
[0010]
As shown in FIG. 2, it is also effective to interpose dry joints 34, 34, for example, by independent foaming, in a space formed at a butt portion of an upper attachment member 33 constituting a solar cell attachment member 35. It is. In this case, although the screw 37a may penetrate, the dry joint members 34, 34 are foams, and the watertightness is not impaired.
[0011]
With the above structure, the second cover member 19 prevents water from reaching the first cover member 15, and even if water reaches the first cover member 15, the first cover The seal member 9 attached to the member 15 prevents water from entering the boundary of the exterior material, and can exhibit a two-stage waterproofing function for a long time. Further, since the second cover member 19 has a mountain-shaped cross section, it is possible to efficiently flow rainwater to the outside in the width direction and to provide a space between the first and second cover members 15 and 19. Since the space is formed, this space can be used as a space for laying a wiring cable or the like of the solar cell.
[0012]
Further, when the screw hole 21 is provided between the two opposing first engagement means 13, 13, even if water intrudes between the two cover members, the infiltration of water into the screw portion is prevented. Therefore, corrosion from the screw portion can be reliably prevented. Even if water enters the screw portion, the dry joint material 34 can reliably prevent water from entering thereafter.
[0013]
Since such a protective member 1 of the present invention is mainly intended for a boundary between two exterior materials or a solar cell module, the protective member 1 of another portion is used for the roof panel 3. A mounting relationship occurs. Therefore, an embodiment of the entire structure of the roof in the case where the present invention is used will be described in detail with reference to FIGS.
FIG. 3 is a plan view showing a part of a roof structure 45 incorporating a plurality of roof panels 3. In the figure, the upward direction is the ridge direction, and the downward direction is the eaves direction. The illustrated example shows the end of the roof 45, the roof panel 3b at the end is arranged next to the roof panel 3b at the end, and the protective member 1 of the present invention is used at the boundary between the roof panels 3a, 3a. In addition, another protective member 49 is used between the solar cell panel 29 of the roof panels 3a and 3b and the roof material 47. Therefore, there is a structural relationship between the protection member 1 of the present invention and the other protection member 49 in mounting. Since the cross-sectional view taken along the line AA in the figure is as shown in FIG. 2, other parts will be described below.
[0014]
The other protection members 49 are provided in the longitudinal direction of the upper frame drainage cover 49a located on the purlin side, that is, the roof inclining upward, the lower frame drainage cover 49b located in the roof inclining downward, and the roof panel 3b at the end. It is composed of a vertical drainer cover 49c. Of the mounting structures of the drainage covers 49a, 49b, 49c, FIG. 4 shows a cross-sectional view taken along the line BB in FIG. 4 and FIG. 5 shows a cross-sectional view taken along the line CC.
First, as shown in FIG. 4 for the BB sectional view, an upper frame drain cover 49a is provided between the roof material 47 and the solar cell mounting member 35 in the inclined upward direction, and the upper end of the solar cell panel 29 is provided. To prevent water from entering the water. A lower frame drain cover 49b is provided between the roof material 47 and the lower attachment member 31 for attaching the solar cell in the downward direction of the slope to prevent water from entering the lower end of the solar cell panel 29. Here, as for the lower end portion of the solar cell panel 29, the lower frame drainage cover 49b also serves as the upper mounting member 33 for mounting the solar cell. In order to more reliably prevent water from entering, the lower frame drainer cover 49b is formed with a slope 51 for rainwater flow.
[0015]
Then, the protection member 1 of the present invention is attached between the upper and lower frame drainage covers 49b provided in the lateral direction. As shown in the figure, the upper end surface of the protection member 1 is brought into contact with the side surface 53 of the upper frame drainer cover 49a in the inclined upward direction, and a flange piece 55 functioning as an eave for rainfall is provided from the upper end of the end surface. Water is prevented from entering the abutting portion between the member 1 and the upper frame drainer cover 49a.
On the other hand, in the lower frame drainer cover 49b, the flange portion 39 is cut off at the contact portion with the solar cell mounting portion, and at the contact portion with the inclined portion 51, the end surface 57 of the second cover member 19 is inclined. As in the case of the inclined upward direction, water is prevented from entering the abutting portion between the protective member 1 and the lower frame drainage cover 49b. The structure of the roof panel 3 is as described above.
[0016]
Next, as shown in FIG. 5 for the CC sectional view, a vertical drainage cover 49c is provided between the solar cell panel 29 and the roof member 47 of the roof panel 3b at the end, and the roof member 47 and the solar cell mounting member are provided. 35 to prevent water from entering the side end of the solar cell panel 29. As shown in FIG. 3, the end face 59 of the vertical drainage cover 49c and the side face 53 of the upper frame drainage cover 49a are in contact, and the side face 61 of the vertical drainage cover 49c and the end face 63 of the lower frame drainage cover 49b are in contact. An upper frame end cap 65 is attached to the upper corner portion of the upper frame.
[0017]
The dashed line shown in FIGS. 4 and 5 represents a colonial (tile) 67 provided on the roof material 47, which is omitted in FIG.
[0018]
Such a protective member 1 of the present invention markedly improves the waterproof sealing performance of the adjacent boundary portion in a general exterior material or a solar cell module. The combination with the drainage covers 49a, 49b, 49c can greatly contribute to the improvement of the waterproof performance of the entire roof 45.
[0019]
In the above embodiment, the exterior material to be covered is the roof panel 3, that is, the case of the solar cell module, and is applied to the butted portion of the wooden frame 23 constituting the solar cell module. The present invention can be widely applied not only to the present embodiment but also to general building exterior materials and the like, and further to a wide range of materials such as synthetic resin and metal other than the wooden frame 23. Needless to say, the present invention is not limited to this embodiment.
[0020]
【The invention's effect】
Protection members solar cell module boundaries of the present invention has the following excellent effects.
Protective member of the present invention, for example, on the boundary of the adjacent two solar cell module, fitted with a first cover member via the seal member, further structures fitting the second cover member thereon is there. Therefore, first, water is prevented from reaching the first cover member by the second cover member, and even if water reaches the first cover member, the water is attached to the first cover member. since prevent intrusion of water by the sealing member to the boundary portion of the solar cell module, the waterproof effect of the two-stage stance is exhibited over a long period of time, becomes extremely reliable. Further, since this sealing material is not directly exposed to sunlight, wind and rain as described above, it exerts a more excellent effect in terms of maintaining reliability .

[Brief description of the drawings]
FIG. 1 is an explanatory view showing a structure of a protection member of the present invention. FIG. 2 is a cross-sectional explanatory view showing a structure of a protective member of the present invention. FIG. 3 is an explanation showing a part of a roof structure using the protection member of the present invention. FIG. 4 is a cross-sectional explanatory view showing a part of the roof structure using the protective member of the present invention. FIG. 5 is a cross-sectional explanatory view showing a part of the roof structure using the protective member of the present invention. FIG. 7 is an explanatory cross-sectional view illustrating a structural example of a roof incorporating a roof panel having the same. FIG. 7 is a plan view illustrating an exemplary structure of a roof incorporating a roof panel having a power generation function.
DESCRIPTION OF SYMBOLS 1 Protective member 3 Roof panel 5 Elongate member 7 One main surface of elongate member 9 Seal member 11 Other main surface 13 of elongate member 13 First engagement means 15 First cover member 17 Second engagement means 19 Second cover member 21 Screw hole 23 Wooden frame 25 Heat insulating material 27 Waterproof sheet 29 Solar cell panel 31 Lower mounting member 33 Upper mounting member 34 Dry joint material 35 Solar cell mounting members 37, 37a Wood screw 39 Flange 41 Lock Part 43 Locking piece 45 Roof 47 Roofing material 49 Other protective members 49a Upper frame drainer cover 49b Lower frame drainer cover 49c Vertical drainer cover 51 Inclined part 53 Upper frame drainer cover end face 55 Flange piece 5
57 End surface 59 of second cover member 59 Vertical drainage cover end surface 61 Side surface of vertical drainage cover 63 Lower frame drainage cover end surface 65 Upper frame end cap 67 Colonial 69 House 71 Main house 71
73 ridgewood 75 eaves 77 skylight

Claims (2)

A seal member having a waterproof function is provided on substantially one entire surface of one long surface of the long member and is provided across two adjacent solar cell modules , and the other main surface is located on the back side of one main surface. On the side, two first engagement means extending in the longitudinal direction are provided to face each other, and a first cover member screwed and fixed to the solar cell module in a region sandwiched between the two first engagement means When,
A flange member which is externally fitted to the first cover member and provided on both sides in the width direction of the elongated member, and two second engagements engaging with the first engagement means on one main surface side; A second cover member, wherein the means are provided to face each other in the longitudinal direction, and the second cover member is externally fitted to the first cover member so that the first cover member is not exposed;
A protection member at the boundary of a solar cell module . Wherein interposed dry joint member according to the independent foaming space formed in the abutting portion of the adjacent solar cell modules, the first cover member of the solar cell module and solar cell according to claim 1, wherein the screwed a dry joint material Protection member at the module boundary.

Images