JP4319328B2 - Solar cell module roof tiles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solar cell module tile in which a solar cell module is mounted on a tile used as a roofing material of a building.
[0002]
[Prior art]
Techniques for mounting solar cells on tiles used as building roofing materials and converting solar energy into electricity are known in Japanese Utility Model Laid-Open No. 1-148417 and Japanese Patent Laid-Open No. 10-72910.
[0003]
Japanese Utility Model Laid-Open No. 1-148417 describes a configuration in which a solar cell is provided on a lower surface of a flat roof tile, and a cable of the solar cell is led out from a portion where a space portion is formed on both upper and lower edges of the flat roof tile. Yes.
[0004]
Japanese Patent Application Laid-Open No. 10-72910 describes a configuration in which a solar cell is provided on the surface of a flat roof tile, a terminal box is provided on the back surface of the flat roof tile, and a wiring member is led out from this terminal box.
[0005]
As described above, conventional solar cell-mounted tiles have a solar cell mounted on the surface of the tile body, a solar cell cable is derived from the back surface of the tile body, a terminal box is provided on the back surface of the tile body, After connecting the battery cable to the terminal inside the terminal box, the cable is led out from this terminal box. And the cable derived | led-out from each solar cell is connected in the lower part of a roof tile main body, The many solar cells are electrically connected in series or in parallel.
[0006]
Moreover, the following are proposed as other conventional solar cell-mounted tiles. A solar cell is mounted on the surface of the tile body, and a terminal box housing recess that protrudes on the back side of the tile body is provided. A terminal box attached to the back surface of the solar cell is stored in the terminal box storage recess, and an output cable connected to the terminal box is led out from a cable outlet hole formed in the bottom wall of the terminal box storage recess. ing.
[0007]
[Problems to be solved by the invention]
Waterproofing with solar cell roof tiles is achieved by bonding the solar cell to the tile body with an adhesive, or bonding the solar cell to the bottom surface of the recessed portion provided on the tile body via an adhesive, and This is done by filling a caulking material in the gap between the inner peripheral surface of the part.
[0008]
However, adhesives and caulking materials are prone to deterioration. Deterioration progresses quickly especially in environments such as roofs that are exposed to sunlight and become hot or exposed to wind and rain. For this reason, the adhesive or caulking material is cracked, and rainwater or the like may enter between the roof tile and the solar cell.
[0009]
Rainwater that has entered the back side of the solar cell may flow into the terminal box housing recess. By the way, the solar cell-mounted tile is usually laid on a roof plate with an inclined roof, so that even if the infiltrated rainwater is stored at the bottom of the terminal box storage recess, the stored rainwater is recessed due to the inclination of the roof. Drained from the top. On the other hand, it is also drained from the cable outlet hole opened in the bottom wall of the recess. Therefore, especially when the roof has a gentle slope, the connection between the terminal box and the cable is likely to be exposed to rainwater that has entered the terminal box housing recess, and accordingly, corrosion and short-circuit accidents occur at the connection. May be incurred.
[0010]
Also, in the configuration in which the cable is led out through the bottom wall of the terminal box housing recess, the field board is provided close to the terminal box housing recess, so the cable led in the field board direction is The wiring is made so as to be bent along the field board by abruptly bending so as to make a substantially right angle with respect to the leading direction. Therefore, there is a high possibility that the cable is strongly pressed against the edge of the cable outlet hole and the insulating coating is damaged. In particular, when the tile main body is made of cement, since the burrs are formed at the edge of the cable outlet hole, the insulating coating is more easily damaged.
[0011]
The present invention has been made paying attention to the above circumstances, and the object thereof is for a solar cell module that can prevent an electrical short-circuit accident due to intrusion of rainwater and the like, and an output take-out cable is less likely to be damaged. To provide tiles.
[0012]
[Means for Solving the Problems]
  The invention of claim 1 is provided with a terminal box on the back surface.The take-out cable is connectedA solar cell module and a tile main body laid at an inclination on the roof, wherein the solar cell module is housed in a recessed portion, a terminal box housing recessed portion that is provided at the bottom of the recessed portion and houses the terminal box,An opening is provided in the side wall of the housing recess near the ridge side of the roof.The roof tile main body having a cable lead-out portion for leading the output take-out cable to the ridge side.
[0013]
In the present invention and each of the following inventions, the tile body is formed of a synthetic resin material, an inorganic material such as cement, a metal material, or a composite material thereof, and an insulation coated electric wire is used for the output take-out cable. . Similarly, in the present invention and each of the following inventions, the solar cell module includes a transparent electrode layer, a semiconductor layer for photoelectric conversion, and a back electrode on the back surface of a substrate made of a transparent insulating material such as a transparent glass plate or a transparent synthetic resin. The layers are sequentially formed by a thin film manufacturing technique, and the back surface is further covered with a sealing material layer for insulation, waterproofing and mechanical protection. As the semiconductor layer, an amorphous semiconductor layer can be preferably used. However, the semiconductor layer is not limited to this, and may be a single crystal, polycrystalline, or microcrystalline semiconductor layer. System may be used. A tandem solar cell module can also be used.
[0018]
In this invention, the output take-out cable may be a positive-side and a negative-side output take-out cable as independent single-core cables so as not to be made as a 2-core cable, or as a single-core cable. The cable on the positive electrode side and the negative electrode side may be combined to form one two-core cable.
[0019]
  thisClaim 1To the invention ofIn, And connect the output cable connected to the terminal box to the side wall of the roof side of the roof of the tile boxOpenSince the cable is led out from the provided cable lead-out portion to the ridge side, even if rainwater or the like enters the terminal box housing recess for housing the terminal box, the water level rarely reaches the connection portion between the terminal box and the cable. Therefore, corrosion and electrical short-circuiting at the connecting portion can be prevented. Moreover, since the cable was led out to the ridge side as described above, it is not necessary to bend the led cable so as to follow the base plate with the cable lead-out portion as a fulcrum.
[0020]
  Claim 2The invention ofClaim 1The eaves side edge of the roof tile body described above communicates with the recessed portion and the eaves side edgeA groove that opens across the upper surface of the eaves side edge or a hole that passes through the eaves side edge.A drainage unit is provided.
[0021]
  In this invention,1 or more drainageAny size may be used, and the size is not limited.
[0022]
  thisClaim 2In this invention, even if rainwater enters the recessed portion of the tile body laid diagonally on the roof, the rainwater can be discharged out of the recessed portion through the drainage portion formed on the eaves side edge of the tile body. . This drainage reduces the amount of rainwater entering the terminal box storage recess, making it easy to lower the water level of the storage recess, and is effective in preventing corrosion and electrical shorts at the connection between the terminal box and the cable. is there.
According to a third aspect of the present invention, there is provided a drainage groove that is continuous with the bottom surface of the concave portion according to the first aspect so as to surround the terminal box housing concave portion and a lower side of the concave portion that is continuous with the drainage groove. Each of the other drainage grooves is provided, and a drainage hole penetrating the back surface of the tile body is provided in the other drainage groove..
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0024]
1 to 5 show a first embodiment, FIG. 1 is an exploded perspective view of a roof tile for a solar cell module, FIG. 2 is a plan view of the roof tile body, and FIG. 3 is a cross-sectional line along line ZZ in FIG. 4 is a cross-sectional view of a section of a roof for solar cell modules, FIG. 4 is a longitudinal side view showing a part of a roof covered with tiles for solar cell modules, and FIG. FIG. 5B is a wiring diagram showing a comparative example of electrical connection between a plurality of roof tiles for solar cell modules.
[0025]
A solar cell module tile K used as a roof material for an inclined roof includes a tile body 1 and a solar cell module 6 as shown in FIG.
[0026]
As shown in FIGS. 1 and 2, the roof tile body 1 is formed in a substantially rectangular flat plate shape, for example, with cement. Overlap portions 1a and 1b that fit in a male-female relationship are integrally provided on both sides of the tile main body 1 and a tile main body 1 provided with the same type of solar cell module tile (not shown) adjacent to the left and right, and are provided at the lower edge portion. Are integrally provided with a front hanging portion 1c and a rear rising portion 1d on the surface of the upper edge portion. As shown in FIG. 4, the front hanging portion 1 c is overlaid on the upper surface of the ridge side edge portion of the tile main body 1 provided in another similar solar cell module tile K (not shown) arranged adjacent to the eaves side of the roof. The rear rising part 1d is overlaid on the lower surface of the eaves side edge part of the tile main body 1 provided in another similar type solar cell module tile (not shown) arranged adjacent to the eave side of the roof.
[0027]
On the surface of the roof tile main body 1, a rectangular recess 2 is provided over substantially the entire surface, leaving the periphery of the main body 1 in a frame shape. The recessed portion 2 is formed slightly deeper than the thickness of the solar cell module 6 described later, and a rectangular terminal box housing recessed portion 3 is provided in a substantially central portion in the width (left and right) direction of the recessed portion 2. It has been.
[0028]
The storage recess 3 is formed so as to extend in the vertical (building) direction of the roof tile body 1, and the side wall 3b on the side of the roof is located closer to the building than just half of the terminal box storage recess 3 in the building direction. ing. The back surface of the terminal box housing recess 3 is formed at substantially the same height as the front hanging portion 1c of the roof tile body 1, so that the roof tile body 1 can be placed on the roof in a stable state.
[0029]
A first drainage groove 4 a that is continuous in a U-shape is provided along the upper and both sides of the recessed portion 2 at the periphery of the bottom surface of the recessed portion 2. At the center of the bottom surface of the recessed portion 2, a second drainage groove 4 b that is continuous in a U-shape is provided along the upper side and both sides of the terminal box housing recessed portion 3. A third drainage groove 4c is provided at the corner of the lower side of the recessed part 2 over the entire length in the lateral direction, and the first and second drainage grooves 4a, 4b communicate with the third drainage groove 4c. That is, the water flowing in the first and second drain grooves 4a and 4b collects in the third drain groove 4c.
[0030]
Drain holes 5 as through-holes are formed in a total of four locations of both ends of the third drain groove 4c and the junction of the second drain groove 4b and the third drain groove 4c. These drain holes 5 penetrate the back surface of the roof tile body 1.
[0031]
In the side wall 3b located on the ridge side when the tile main body 1 is laid on the roof base plate 17 (see FIG. 4) at the upper end side of the tile main body 1, that is, the side wall in the terminal box housing recess 3, A cable lead-out portion 3a made of a hole penetrating the wall 3b is provided.
[0032]
The concave portion 2 of the tile main body 1 configured as described above is formed in a size suitable for the size of the solar cell module 6, and the solar cell module 6 is accommodated in the concave portion 2. The solar cell module 6 is bonded and fixed to the recessed portion 2 of the roof tile body 1 with, for example, an adhesive 9 shown by a two-dot chain line in FIG. The adhesive 9 may be bonded to the entire surface of the solar cell module 6 or may be bonded at a plurality of mutually independent locations as shown in FIG. In particular, when bonding is performed as in the latter case, even if a crack occurs in some of the adhesive 9, it does not spread to other bonding locations that are separated from each other. Excellent mounting reliability.
[0033]
In the solar cell module 6, for example, a transparent electrode layer, an amorphous semiconductor layer, a back electrode layer, and the like are sequentially laminated on the back surface of one transparent glass substrate, and the back surface is covered with a sealing material and sealed. A thin panel structure is used.
[0034]
As shown in FIGS. 3 and 4, a terminal box 7 is fixed to the back surface of the solar cell module 6 at a substantially central portion in the width direction of the module 6. Two output extraction cables 8a and 8b are connected to the side surface 7a of the terminal box 7 on the ridge side. In addition, 8c has shown the connection part of both the cables 8a and 8b and the terminal box 7. FIG. One output extraction cable 8a is for the positive electrode, and the other output extraction cable 8b is for the negative electrode. These two cables 8a and 8b are both single-core cables made of an insulation-coated electric wire, and are provided independently of each other so that they can be individually handled on the wiring without being restricted by the other party. Both cables 8a and 8b have connectors at their tips.
[0035]
As shown in FIG. 3, the terminal box 7 is housed in the terminal box housing recess 3 of the roof tile body 1. In this stored state, the output take-out cables 8a and 8b are led out to the ridge side on the back surface of the roof tile body 1 through the cable lead-out portion 3a of the ridge side wall 3b of the terminal box housing recess 3 without being bent suddenly. ing.
[0036]
Next, the so-called roofing of a building using the solar cell module tile K constructed as described above will be described. As shown in FIG. 4, the roof 16 has a ridge side 16a to an eave side 16b. A base plate 17 inclined downward is provided, and the solar cell module roof tile K is placed on the base plate 17 directly or via a roof tile base material.
[0037]
The solar cell module tiles K are placed on the baseboard 17 sequentially from the eave side 16b to the building side 16a in the same manner as in a normal roof tile work, but the tile bodies 1 adjacent to each other on the left and right sides overlap with each other. The parts 1a and 1b are fitted in a male-female relationship, and are fixed to the base plate 17 through nails through mounting holes 18 (see FIGS. 1 and 2) provided on the upper end side of the roof tile body 1. Further, in the solar cell modules adjacent to each other in the building eave direction, the front hanging portion 1c of the tile body 1 adjacent to the building side is overlapped with the upper part of the rear rising portion 1d of the tile body 1 arranged on the eave side. In this overlap, the drain hole 5 of the tile main body 1 on the ridge side is positioned below (eave side 16b) below the rear rising portion 1d of the tile main body 1 adjacent to the eave side. The roof tile main body 1 is similarly fixed to the base plate 17 through the roof fixing nails and the like in the mounting holes 18.
[0038]
A large part of the roof 16 can be constituted by a large number of roof tiles K for solar cell modules laid on the base plate 17 by repeating the above-described roof tile work. In parallel with this roofing operation, an operation of electrically connecting a plurality of adjacent solar cell modules 6 in series or in parallel is performed. This connection work is performed using the output lead-out cables 8a and 8b led out from the cable lead-out portion 3a of the terminal box housing recess 3 to the ridge side.
[0039]
An example of the wiring shown in FIG. 5A will be described. In the figure, 31 is a plus side trunk line connected to the inverter on the indoor side, 32 is the minus side trunk line, and 33 is a pair of two-wire applicable bushings. In the example of FIG. 5A, these modules 6 are connected in series so that the six solar cell modules 6 become one output unit.
[0040]
For this purpose, the positive output output line 8a and the negative output output line 8b between the adjacent solar cell modules 6 are male-female-coupled at their tips, and the six solar cell modules 6 are connected in series. ing. The positive output output cable 8a of the solar cell module 6 at one end of the output units connected in series in this way is connected to the positive main line 31 via one bushing 33. Similarly, the solar cell module at the other end of the output unit. 6 is connected to the negative side trunk line 32 via the other bushing 33.
[0041]
FIG. 5B shows a case where the output lead-out cables 8a and 8b of the solar cell module 6 are not of a single-core structure as in the present embodiment, and these two cables are combined into a single two-core cable 8. The wiring example of the six solar cell modules 6 is shown for comparison. In FIG. 5B, reference numeral 34 denotes a three-line bushing.
[0042]
One two-core cable 8 cannot handle the plus / minus output lead-out cables 8a and 8b individually and perform wiring work. Therefore, the electrical connection between the positive electrode and the negative electrode between the adjacent solar cell modules 6 is performed by using the three-line corresponding type bushings 34 individually prepared corresponding to each solar cell module 6. The electric wire which connected bushings 34 adjacent to 35 in Drawing 5 (b) in series is shown. In this way, the output unit connected in series via each bushing 34 used in a pair with each solar cell module 6 and the electric wire 35 between these bushings 34 is connected to the positive output output cable 8a of the solar cell module 6 at one end thereof. It connects to the positive side trunk line 31 via the bushing 34 for the solar cell module 6 at the one end, and similarly connects the negative output output cable 8b of the solar cell module 6 at the other end of the output unit to the solar cell at the other end. It is connected to the minus side trunk line 32 via a bushing 34 for the module 6.
[0043]
As is apparent from the comparison between FIG. 5A and FIG. 5B described above, wiring using two single-core cables as the plus / minus output lead-out cables 8a and 8b is the trunk line 31. , 32 is not required to use the electric wire 35 shown in FIG. 5B, and an insulating sheath for forming a two-core cable can be omitted. In addition, only a pair of bushings 33 may be used for the output unit, and as many bushings 34 as the number of solar cell modules 6 are not required as shown in FIG. Therefore, the number of parts required for wiring is small on the roof 16 laid using the tile K, and the wiring structure is simple. In addition, in this embodiment, the bushing 33 does not require the three-wire compatible bushing 34 having a complicated structure shown in FIG. 5B, and a simple and low-cost two-wire compatible type can be used. . Therefore, the cost of the roof 16 can be reduced.
[0044]
By the way, in the tile K of the present embodiment in which the roof 16 is configured by being tiled as described above, rainwater that has entered from between the recessed portion 2 of the tile body 1 and the solar cell module 6 has flowed into the terminal box housing recessed portion 3. In this case, rainwater is stored inside the terminal box housing recess 3.
[0045]
However, the tile K is inclined on the roof and is laid on the roof 16, and the cable lead-out portion 3a of the terminal box storage recess 3 is a side wall of the terminal box storage recess 3 located at a high position on the ridge side. 3b is provided. Therefore, the connection portion 8c between the terminal box 7 and the output take-out cables 8a and 8b is less likely to be corroded or cause an electrical short circuit accident by being exposed to rainwater accumulated in the terminal box housing recess 3.
[0046]
Further, since the two output extraction cables 8a and 8b are led out to the ridge side through the cable derivation section 3a on the ridge side, when the wiring shown in FIG. 5 (a) is performed, the derived output extraction cable 8a. , 8b need not be bent rapidly along the base plate 17 with the cable lead-out portion 3a as a fulcrum.
[0047]
Therefore, the output take-out cables 8a and 8b can be prevented from being strongly pressed against the edge of the cable lead-out portion 3a. Therefore, even if burrs appear on the edge of the cable lead-out portion 3a of the roof tile body 1 made of cement, it is possible to reduce the damage to the insulation coating of the output lead-out cables 8a and 8b. For the same reason, the packing of the roof tile K does not require the output lead cables 8a and 8b to be bent sharply with the cable lead-out portion 3a as a fulcrum, so that it is not affected by vibrations acting during transportation to the construction site. The possibility that the output extraction cables 8a and 8b are damaged at the edge of the cable lead-out portion 3a can be reduced.
[0048]
6 (a) and 6 (b) show a second embodiment. In this second embodiment, the same components as those in the first embodiment are given the same numbers, and the description thereof is omitted. In the present embodiment, as shown in FIG. 6 (a), the first embodiment is that the means for providing the cable lead-out portion 3a on the side wall of the terminal box housing recess 3 provided in the roof tile body 1 is configured as follows. Is different.
[0049]
A thin wall portion 19 is provided on the side wall of the terminal box housing recess 3 at the upper end portion side of the tile body 1, that is, on the side wall 3b that is located closer to the ridge side when the tile body 1 is laid on the roof base plate. is there. In order to obtain the thin portion 19, a convex portion 20 a is provided on a part of the male mold 20 for forming the terminal box housing concave portion 3 of the tile body 1, and a narrow gap portion is formed between the convex portion 20 a and the female die 21. What is necessary is just to form. Then, after the tile body 1 made of cement material is molded, the thin portion 19 is struck with a hammer or the like to open the cable lead-out portion 3a formed by the trace of the thin portion 19 as shown in FIG. The two output extraction cables 8a and 8b can be led out from the cable lead-out portion 3a to the ridge side without being bent suddenly.
[0050]
  7 (a), (b) and FIG.Reference example of the present inventionShow thisReference exampleIn the figure, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.This reference exampleThe tile main body 1 is basically the same as that of the first embodiment, but becomes the ridge side when the tile main body 1 is laid on the roof, that is, the upper edge side in the recessed portion 2 that houses the solar cell module 6. A terminal box storage recess 22 in which the terminal box 7 is stored is provided at the site (ridge side edge).
[0051]
Further, as shown in FIG. 7A, the rear rising portion 1d of the roof tile body 1 is provided with a cable lead-out portion 23 formed of a concave groove that communicates with the terminal box housing concave portion 22 across the rear rising portion 1d. As shown in FIG. 7B, the bottom surfaces of the terminal box housing recess 22 and the cable lead-out portion 23 are formed at the same height. In FIG. 8, 10 is a nail that passes through the mounting hole 18, and 11 is a nail bracket that covers the rear rising portion 1d.
[0052]
According to the tile main body 1 configured as described above, the solar cell module 6 is stored in the recessed portion 2 of the tile main body 1 and the terminal box 7 is stored in the terminal box storage concave portion 22 as shown in FIG. The output lead-out cables 8a and 8b led out from the terminal box 7 can be led out toward the upper end of the roof tile body 1 along the cable lead-out portion 23, that is, toward the ridge side, without being bent suddenly.
[0053]
  Therefore,This reference exampleAccording to the above, even if rainwater that has entered from between the recessed portion 2 of the roof tile body 1 and the solar cell module 6 flows into the terminal box housing recess 22 and is stored, the cable lead-out portion 23 is not connected to the terminal box housing recess. Therefore, the connection portion 8c of the terminal box 7 and the output lead-out cables 8a and 8b is exposed to rainwater accumulated in the terminal box housing recess 22 to be corroded or cause an electrical short-circuit accident. Can be prevented.
[0054]
  Moreover,This reference exampleAccording to the above, the cable lead-out portion 23 is opened upward. Therefore, when the solar cell module 6 is housed in the recessed portion 2, the two output extraction cables 8a and 8b can be accommodated in the cable lead-out portion 23 from above, there is no trouble of passing through the hole, and workability is improved. Is good.
[0055]
  9 to 11 areThird embodimentShow thisThird embodimentIn the figure, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.Third embodimentThe roof tile main body 1 is basically the same as that of the first embodiment except that the drainage means from the recessed portion 2 to the outside is configured as follows.
[0056]
That is, the bottom surface of the recessed portion 2 is formed as a flat surface having no irregularities except for the terminal box housing recessed portion 3. The lower edge portion of the roof tile body 1, that is, the front hanging portion 1c that forms the edge portion of the eave side located on the eaves side in a state where the roof tile body 1 is laid on the sloped field board 17 is one or more crossing this, for example Two drainage portions 25 are provided. Both drainage portions 25 are formed by grooves opened on the surface of the front drooping portion 1c. The bottom surfaces of these drainage portions 25 are continuous with the bottom surface of the tile main body 1, but are not limited to this, and may be provided one level lower than the bottom surface of the tile main body 1. 1 may be provided obliquely downward from the bottom surface. Further, the both drainage portions 25 may be formed to bend downward so as to reach the lower end of the front drooping portion 25.
[0057]
  thisThird embodimentIn the solar cell module roof tile K, the cable lead-out portion 3a of the terminal box storage recess 3 is provided on the side wall 3b of the terminal box storage recess 3 located at a high position on the ridge side. Even if rainwater that has entered from between the recessed portion 2 of the roof tile body 1 laid on the roof and the solar cell module 6 flows into the terminal box housing recess 22 and is stored, the rainwater collected in the terminal box housing recess 3 In addition, the connection portion 8c between the terminal box 7 and the output extraction cables 8a and 8b is rarely exposed.
[0058]
In addition, rainwater that has entered the recessed portion 2 of the roof tile body 1 can be smoothly discharged out of the recessed portion 2 through the drainage portion 25 formed in the front hanging portion 1 c of the roof tile body 1. This drainage makes it easy to lower the water level of the storage recess 3 by reducing the amount of rainwater entering the terminal box storage recess 3.
[0059]
Accordingly, it is possible to effectively prevent corrosion and electrical short-circuiting at the connection portion between the terminal box 7 and the output take-out cables 8a and 8b.
[0060]
  or,Third embodimentSince the two output lead-out cables 8a and 8b are led to the ridge side through the cable lead-out portion 3a on the ridge side, the base plate 17 is set with the lead-out output lead-out cables 8a and 8b as the fulcrum. Therefore, the insulation coating of these cables 8a and 8b is less likely to be damaged.
[0061]
【The invention's effect】
  As explained above,Claims 1-3According to the invention, when the cable lead-out portion provided on the tile main body is laid on the roof,Terminal storage boxNear the buildingOpened on the side wallThe output extraction cable connected to the terminal box of the solar cell module is led out from the cable lead-out portion to the building side. For this reason, even if rainwater or the like enters the terminal box storage recess for storing the terminal box, the water level does not reach the connection between the terminal box and the output take-out cable. Can be prevented. Furthermore, since the output take-out cable is led out to the ridge side, the cable can be prevented from being damaged by the edge of the cable lead-out portion. Therefore, a high-quality solar cell module roof tile can be provided.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a solar cell module roof tile according to a first embodiment of the present invention.
FIG. 2 is a plan view of the roof tile body of the first embodiment.
3 is a cross-sectional view of the solar cell module roof tile of the first embodiment, taken along a cross-sectional line along the line ZZ in FIG. 2;
FIG. 4 is a longitudinal side view showing a part of a roof covered with tiles for solar cell modules according to the first embodiment.
FIG. 5A is a wiring diagram showing electrical connection between a plurality of roof tiles for solar cell modules according to the first embodiment.
  (B) is a wiring diagram which shows the comparative example of the electrical connection between several roof tiles for solar cell modules.
FIG. 6A is a cross-sectional view showing a manufacturing status of a solar cell module roof tile according to a second embodiment of the present invention.
  (B) is sectional drawing which shows a part of roof tile for solar cell modules of 2nd Embodiment.
FIG. 7 (a) shows the present invention.Reference exampleThe perspective view which shows the tile main body of the roof tile for solar cell modules.
  (B) is sectional drawing which follows the AA line in Fig.7 (a).
[Figure 8]Reference exampleFIG. 3 is a longitudinal side view showing a part of a roof that is covered with tiles for solar cell modules.
FIG. 9 shows the present invention.Third embodimentThe disassembled perspective view of the roof tile for solar cell modules.
Fig. 10Third embodimentFIG.
FIG. 11Third embodimentSectional drawing which shows a part of roof covered with the tile for solar cell modules while it crosses the roof tile for solar cell modules with the sectional line which follows the YY line in FIG.
[Explanation of symbols]
1 ... Tile body
1c ... Front hanging part (eave side edge)
1d ... Rear rising part (ridge side edge)
2. Recessed part
3... Recesses for terminal box storage
3a... Cable outlet
3b ... Side wall on the ridge side of the terminal box storage recess
4a, 4b ... Drainage channel
5 ... Drain hole
6 ... Solar cell module
7 ... Terminal box
7c: Terminal side of the terminal box
8a, 8b ... Output extraction cable
8c: Connection part
25 ... Drainage section

Claims (3)

A solar cell module with a terminal box on the back, and a take-out cable connected to this box ;
A tile main body laid at an inclination on a roof, wherein the solar cell module is housed in a recessed portion, a terminal box housing recessed portion provided at the bottom of the recessed portion for housing the terminal box, and the roof of the housing recessed portion. The roof tile main body having a cable lead-out portion that is provided in an opening on a side wall near the ridge and leads the output take-out cable to the ridge side;
The roof tile for solar cell modules characterized by comprising. Drain consisting of a groove or a hole penetrating the eaves side edge in the eaves side edge of the roof tile body, across the eaves side edge in communication with the recessed part The roof tile for solar cell modules according to claim 1, wherein a portion is provided . On the bottom surface of the recessed portion, a drainage groove that is continuous so as to surround the terminal box housing recess, and another drainage groove that is continuous with the drainage groove and extends along the lower side of the recessed portion, respectively, and the other drainage are provided. The roof tile for solar cell modules according to claim 1, wherein a drainage hole penetrating the back surface of the roof tile body is provided in the groove .

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