JP2000282648A - Solar battery panel structure and solar battery panel construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof structure with solar battery panels simple and easy to handle. SOLUTION: A roof structure includes a plurality of solar battery panels 100 each having an upper frame 300 for fixing the upper end of a solar battery module and a lower frame 200 located higher than the upper frame 300 for fixing the lower end of the solar battery module and a plurality of first and second solar battery panels 100A, 100B, the roof structure having overlapping portions where the lower frames 200 of the second solar battery panels 100B overlap the upper frames 300 of the first solar battery panels 100A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof panel constituting a roof of a house or the like, to which a solar cell is attached.

[0002]

2. Description of the Related Art As means for installing solar cells on a roof, a plurality of solar cell modules are attached to a roof panel constituting the roof, and the two are integrated. Technologies for installing solar cells simultaneously with laying have been developed.

[0003] Japanese Patent Laid-Open No. 6-212 discloses such a prior art.
According to the roof panel with a solar cell disclosed in Japanese Patent No. 747, the roof panel is formed by arranging a plurality of solar cell panels 10 side by side on the upper surface of the base panel 1, and is entirely formed in a rectangular shape and has a longitudinal shape. It extends from the ridge side to the eaves side with the direction along the roof slope.

[0004] The solar cell panel 10 is formed by framing a frame on four sides of a rectangular panel-shaped solar cell in which a large number of solar cells 11 are built in a transparent plate. Is the lower frame 14 on the ridge side
Are arranged on the eaves side, and the vertical frame 15 is attached along the inclination direction of the roof. In this case, a support member is fixed to the base panel 1 along the longitudinal direction, and the left and right vertical frames 15 are fixed to the support member, so that the solar cell panel 10 is attached to the base panel 1. In addition, a sealing material 20 is interposed between the solar cell panels 10 that are adjacent vertically and horizontally.

In this roof panel, when rainwater flows from the solar cell panel 10 on the ridge side to the solar cell panel 10 on the eaves side, the rainwater passes through the extension piece 14a formed on the lower frame 14 on the eaves side, and the eaves end. Side solar cell panel 10. Therefore, rainwater or the like is hard to enter from the gap between the solar cell panels, and even if it enters, it is blocked by the sealing material 20 or the like, so that it is difficult for water to enter inside. In addition, since the ventilation layer is provided by the support member 25, a solar cell panel 10 that is easily cooled can be obtained.

[0006]

The power generation efficiency of a solar cell is generally about 14 or 15%, and it is a major problem how to efficiently use the limited roof space to increase the efficiency. In addition, the solar cell panel 1 configured as described above
No. 0 had a problem in that the extension piece 14a was damaged unless the extension piece 14a was processed or handled carefully during transportation. In addition, it is difficult to form a ventilation layer between the upper surface of the roof and the back surface of the solar cell panel 10 by the support member 25, how to perform ventilation for cooling the solar cell panel 10.

Further, the wiring of the solar cell panel must be formed by making a hole in the mounting member, and there is a problem that the wiring work is difficult. In addition, solar cell panel 1
Since dew condensation easily occurs on the back surface of the No. 0, it is necessary to treat the product and the mounting member with rust prevention and antifungal treatment due to the dew condensation. In addition, each of the solar cell panels has to be fastened and fixed at four places, so that there is a problem that the mounting time is long and the workability is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to provide a roof structure having a solar cell panel which is simple and easy to handle.

[0009]

SUMMARY OF THE INVENTION The present invention provides a rectangular solar cell panel having a solar cell, an upper frame for fixing an upper end of the solar cell panel, and a lower end of the solar cell panel. A roof structure having a lower frame higher than the upper frame and being fixed, and a roof structure including the second solar cell panel on the upper frame of the first solar cell panel. The lower frame is provided with an overlapping portion which can be attached by being overlapped.

[0010] A storage portion for storing the upper frame of the first solar cell panel is provided in the lower frame of the second solar cell panel.

A projection is provided on the lower side of the lower portion of the overlapped portion of the lower frame, and a projection is provided on the upper side of the upper surface of the upper frame.

[0012] The present invention further includes a filling member interposed in a gap formed between the projection on the lower frame and the projection on the upper frame.

The lower frame is provided with an inclined portion on the lower surface of the leading end so as to be tapered.

Further, after the first solar cell panel is connected and fixed to the roof, the first solar cell panel is stored in the storage part of the first lower frame while sliding the inclined part of the upper frame of the second solar cell panel. It is.

Further, the lower frame of the solar cell panel or the lower frame and the upper frame are connected and fixed to a roof.

[0016] Further, there is provided a gap formed between the lower side surface of the side frame forming the solar cell panel and the upper surface of the roof, and a cable for connecting the solar cell panel inserted through the gap.

A ventilation layer formed between the back surface of the solar cell panel and the roof, a ventilation path through which the ventilation layer communicates with the gap, and an airflow passing through the ventilation layer to the outside; It is provided with.

[0018] Further, there are a plurality of solar cell panels arranged side by side at a fixed distance, and an adjacent ventilation path for flowing an airflow formed between the adjacent solar cell panels; The road is connected.

A cover having a plurality of solar cell panels for closing a gap between the adjacent solar cell panels from above;
An opening is provided on the lower surface of the cover.

A cover having a plurality of solar cell panels, and closing a gap between the adjacent solar cell panels from above;
An auxiliary opening is provided on the upper surface of the cover.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an entire roof according to an embodiment of the present invention, FIG. 2 is a perspective view of the solar cell panel of FIG. 1, and FIG. 3 is a perspective view showing fixing of the solar cell panel of FIG. FIG. 4 is a cross-sectional view showing an overlapping portion between the upper frame and the lower frame of the solar cell panel in FIG. 1, and FIG. 5 is a cross-sectional view showing an inserted state in the overlapping portion between the upper frame and the lower frame of the solar cell panel. FIG.

In FIG. 1, the roof panel body 50 has three vertical rails 60 provided with gutter portions 60a through which rainwater flows from the ridge side A to the eaves side B at predetermined intervals on the upper surface of the roof 55. A plurality of solar cell panels 100 are fixed side by side on the upper surface of the vertical rail 60. The entire solar cell panel 100 has a rectangular shape, and the ridge side A is connected to the eaves side B along the inclination of the roof 55. Spanned.

In addition, a waterproof sheet having sufficient waterproofness is
In the case where the solar cell panel 100 is stuck on the area laid on the roof 55, the solar cell panel 100 is not used without using the vertical rails 6.
May be directly fixed to the roof 55, and the function of the vertical rail 6 as a gutter can be replaced with a waterproof sheet.

In FIG. 2, a solar cell panel 100 incorporates a solar cell module 100a. The solar cell module has a rectangular solar cell in which solar cells are built in a substantially square transparent plate, and is formed into a rectangular shape by a joint. It is a panel-shaped combination of a plurality of, for example, 4 × 5.

A vertical (side) frame 102 is mounted on two sides forming the module, a lower frame 200 is mounted on the lower side, and an upper frame 300 is mounted on the upper side. Have been. When the lower frame 200 is placed on the roof surface, the upper frame 300
It is a positional relationship that rides on and overlaps.
Each frame holds a transparent plate containing solar cells,
It reinforces and functions as a join with other modules 100a arranged vertically and horizontally.

Referring to FIG. 3 and FIG.
In the lower frame body 201, a lower portion 200e is formed in the lower frame main body 201 so as to be engaged with a transparent plate containing a solar battery cell. (Facing portions) are pressed into contact with the upper surface of the upper frame body 301 and a plurality of projection pieces 200h, 200j provided downward to prevent infiltration of rainwater. Guide piece 200g poured into gutter 305
And a leg portion 203 a forming a storage portion 203 that is a space for storing the upper frame 300 together with the lower surface of the lower frame body 201 (a portion facing the frame main body 301). .

Below the leg portion 203a, a gutter portion 205 is formed in a concave shape, in the direction opposite to the storage portion 203, in which a drop due to condensation on the back surface of the solar cell panel 100 flows. The screw hole 200y is for fixing the vertical frame 102, and is provided on the gutter portion 205 side of the leg portion 203a.

In the upper frame 300, a recess 300e is provided in the frame main body 301 so as to be engaged with a transparent plate containing a solar cell therein. Is provided with an upwardly protruding piece 300j to prevent infiltration of rainwater, and comes into contact with the lower surface of the lower frame body 201.

Inside the lower part of the upper frame body 301,
A screw hole 300y for fixing the vertical frame 102 is formed, and a recessed gutter 305 through which rainwater flows is formed on the storage section 203 side of the lower frame main body 201 on the lower surface of the upper frame main body 301. . The lower surface of the concave portion of the gutter portion 305 is provided with an inclined portion 305r in which the leg portion 203 side of the lower frame body is higher, and a triangular space in which the leg side is wider is formed between the lower frame body and the surface of the vertical rail 60. I have.

Here, the inclined portion 305 r provided on the upper frame 300 is provided in the storage portion 203 of the lower frame 200.
This is an escape portion for facilitating entry into the upper frame 300. Normally, when installing solar panels on the roof, installation work is performed sequentially from the higher part of the ridge side to the lower part (because this is better workability), so first, the upper side First solar cell panel 100
A lower frame 200 is fixed to vertical rail 60.

Thereafter, as shown in FIGS. 5 and 6 (a), the lower second solar cell panel 100B is inclined, and the upper frame 300 is placed under the first solar cell panel 100A which is on the upper side. A method of storing in the storage portion 203 of the side frame 200 is adopted. At this time, until the solar cell panel 100 is moved as shown by the arrow C and the state shown in FIG.
While sliding the surface of the lower frame 200,
The upper frame 300 is placed in 3.

The size of the triangular space between the inclined portion 305r and the vertical rail 60 is set on the lower surface of the lower frame body 201 when the upper frame 300 is stored in the storage portion 203 of the lower frame 200. A plurality of projection pieces 200h,
The tip of the projecting piece 300j is tilted so that the projecting piece 300j provided upwardly on the upper surface of the upper frame body 301 does not hit the projecting piece 200h.
Space below the tip of

The lower portion of the lower frame body 201 of the first solar cell panel 100A (projection pieces 200h, 2
00j) is in contact with the upper surface portion of the upper frame body 301 of the second solar cell panel 100B, and there is an overlap margin 202 where the lower frame body 201 and the upper frame body 301 overlap. In the section of the overlap margin 202, there are the projection pieces 200h, 200j, the projection piece 300j, and the like. A plurality of spaces formed by the projection pieces have a labyrinth effect as a space having a function of cutting off the capillary phenomenon. A high sealing effect can be obtained by interposing a sealing material 250 as a filling member for increasing the water stoppage in this wide space on the back side.

As shown in FIG. 3, the solar cell panel 100
In the upper frame 300, the end 200x of the lower frame 200 is engaged and fixed to the vertical rail 60 in a U-shape in accordance with the shape of the frame leg / gutter 205. At the end 300x, the lower surface of the frame main body 301 is fixed to the horizontal portion 60h of the vertical rail 60 using bolts or the like.

In the first solar cell panel 100A, the lower surface of the lower frame body 201 of the lower frame 200 is
The upper frame 300 of the second solar cell panel 100B comes into contact with the upper surface of the upper frame main body 301, and the overlap margin 20 is set.
2, that is, the upper surface of the upper frame body 301 of the upper frame 300 is lower than the lower surface of the lower frame body 201 of the lower frame 200 from above the surface of the roof 55.

In the installation state shown in FIG. 4, since the solar cell panel 100 is inclined from the ridge side to the eave side,
Rainwater flows smoothly on the upper surface of each solar cell panel 100. Rain water due to strong wind and rain may cause an overlapping portion 2 between the lower frame 200 and the upper frame 300 of the solar cell panel 100.
Even if the rainwater flows into the gap of 02 by capillary action, rainwater is prevented from entering by the projection piece 200h → the projection piece 200j → the sealing material 250 → the projection piece 300j. Even if the rainwater enters over the overlapping portion 202, it flows down to the gutter 305 of the upper frame 300 by the guide piece 200g, and the gutter 30
5 through the gutter 60 a of the vertical rail 60.

As described above, the upper surface of the upper frame 300 has the lower frame 20
Since the roof 55 has an inclination higher than the upper surface of 0, the upper surface of the solar cell panel is inclined between the upper frame 300 and the lower frame 200. A transparent plate containing a solar cell is passed between the upper frame 300 and the lower frame 200, and a substantially triangular space is formed between the transparent plate and the upper surface of the roof 55 as shown in FIGS. Is formed and has a ventilation layer 100k.

The gas permeable layer 100k is provided for the solar cell panel 100
A substantially triangular clearance 100g is formed between the lower surface of the vertical frame 102 and the upper surface of the vertical rail 60 in a side view. The ventilation layer 100k and the gap 100g ventilate the space under the solar cell panel 100 to discharge the high temperature and humidity to improve the use environment conditions of the solar cell panel 100, and the wiring cable is formed by this space. Through 320, connection wiring is performed between the solar cell panels. Wiring work can be done easily because of the large space.

As shown in FIG. 3, the solar cell panel 100
Each of the end portions 200X and 300X of the lower frame 200 and the upper frame 300 is fixed on the vertical rail 60, but as shown in FIGS. 8 and 10, the vertical frame of each adjacent solar cell panel 100 is formed. Between the sides of 102
A cover 400 having a U-shape and a vertical direction substantially equal to the length of the solar cell panel 100 is fixed to be substantially flush with the upper surface of the solar cell panel 100.

The adjacent ventilation passage 420 formed between the cover 400 and the vertical rail 60 is open above the adjacent ventilation passage 420, and communicates with the gap 100 g below the solar cell panel 100. At the lower end of the cover 400, an elongated opening 400e is provided. Cover 40
0, an auxiliary opening 500 having a substantially triangular shape in side view and a rectangular front is provided, and an elongated auxiliary opening 500e is provided at the tip of the auxiliary opening 500.
Is in communication with

As described above, the solar cell panel mounting structure includes the upper frame 300 of the lower second solar cell panel.
Lower frame 20 of the first solar cell panel above
By putting 0 and overlapping, a sufficient space is formed between the back surface of the solar cell panel 100 and the roof. This space includes a ventilation layer 100k, a substantially triangular gap 100g, and an adjacent ventilation path 420, which are in communication with each other.

Further, as the lower frame 200 is overlaid on the upper frame 300, the space for mounting the solar cells is reduced, and the limited roof space can be used efficiently. That is, an area corresponding to the overlap can be used for the area of the solar cell module, and the power generation area can be increased and the power generation amount can be increased. The smaller the size of the solar cell panels (and the narrower the interval between the upper and lower frames), the greater the number of stacked solar cells, so higher power generation efficiency can be obtained.

In use, the solar cell panel is heated to a high temperature by direct sunlight, and is exposed to humid dew due to rainfall. Therefore, the temperature between the back surface of the solar cell panel and the roof becomes high or dew condensation occurs. Wind is generated, and the air current and wind pass through the ventilation path 420 from the gap 100g through the ventilation layer 100k as indicated by arrows A1, B1, and B2, and
0 opening 400e and auxiliary opening 500 of auxiliary member 500
e to the outside to ventilate the back surface of the solar cell panel 100 to release heat and lower the temperature, and to discharge moisture to dry and prevent dew condensation and the like.

As a result, the thermal effect of the high temperature on the solar cell panel 100 is eliminated, and the occurrence of corrosion and mold on the back surface is prevented, so that stable performance and quality can be maintained, and the life of the product can be extended. . In addition, since a sufficient space is formed between the back surface of the solar cell panel and the roof, electric wiring of the solar cell panel is easy, and workability and maintainability are good.

Further, by placing the lower frame 200 of the upper first solar cell panel on the upper frame 300 of the lower second solar cell panel, it is extended to the lower frame for waterproofness. Since there is no need to provide protrusions and no weak protrusions, packing and handling can be facilitated.

After the first solar cell panel is connected and fixed to the roof, the inclined portion of the upper frame of the second solar cell panel is slid on the surface of the vertical rail 60 to the first lower side. Since it is stored in the storage section of the frame, the storage connection can be easily performed, so that the solar cell panel can be easily mounted.

[0047]

According to the first aspect of the present invention, the lower frame of the second solar cell panel is mounted on the upper frame of the first solar cell panel so that the lower frame is mounted. The space becomes smaller,
This has the effect of increasing the area of the solar cell module to increase the power generation area.

According to the second aspect of the present invention, since the storage portion for storing the upper frame is provided on the lower frame of the solar cell panel and the overlapping portion is provided so as to overlap, the upper frame is stored in the storage portion of the lower frame. It is easy to work and has good workability.

According to the third aspect of the present invention, the projection is provided on the lower surface of the overlapped portion of the lower frame, and the projection is provided on the upper surface of the upper frame. Therefore, even if it penetrates, the protrusion piece prevents the intrusion, so that there is an effect that high waterproofness can be obtained.

According to the fourth aspect of the present invention, since the filling member is provided in the gap formed by the projecting piece of the lower frame and the projecting piece of the upper frame, there is an effect that higher waterproofness can be obtained. .

According to the fifth aspect of the present invention, since the inclined portion is provided on the lower surface of the upper frame, the upper frame of the solar cell panel can be easily overlapped with the lower frame of the solar cell panel. There is an easy effect.

According to the sixth aspect, after the solar cell panel is connected and fixed to the roof, another solar cell panel is stored in the storage part of the lower frame while sliding the inclined portion of the upper frame on the rail. This has the effect that the solar cell panel can be easily installed.

According to the seventh aspect, the lower frame of the solar cell panel or the lower frame and the upper frame are connected and fixed to the roof, so that the fixing strength of the solar cell panel is improved.

According to the eighth aspect, since the gap formed between the lower side surface of the side frame of the solar cell panel and the upper surface of the roof is provided, there is an effect that the cable connecting the solar cell panel can be easily wired. .

According to the ninth aspect, the ventilation layer formed between the back surface of the solar cell panel and the roof, the ventilation layer, the lower side surface of the side frame of the solar cell panel, and the upper surface of the roof. And a ventilation path through which the airflow passing through the ventilation layer flows to the outside, there is an effect that the back surface of the solar cell panel can be ventilated and dew condensation can be suppressed.

According to the tenth aspect of the present invention, the adjacent ventilation path for flowing the airflow formed between the adjacent solar cell panels of the plurality of solar cell panels arranged in parallel, and the adjacent ventilation path and the ventilation path are formed. Since the communication is established, even when a large number of solar cell panels are arranged, the rear surfaces of all the solar cell panels can be ventilated through the adjacent ventilation passages, thereby suppressing condensation.

According to the eleventh aspect, since a cover having a plurality of solar cell panels and closing a gap between the adjacent solar cell panels from the upper surface and an opening on the lower surface of the cover is provided, ventilation can be provided from the opening. This has the effect of suppressing condensation on the back surface of the solar cell panel.

According to the twelfth aspect, since the auxiliary opening is provided on the upper surface of the cover, ventilation can be performed from the opening on the upper surface of the cover, and there is an effect of suppressing dew condensation on the back surface of the solar cell panel.

[Brief description of the drawings]

FIG. 1 is a plan view showing a roof provided with a solar cell panel of the present invention.

FIG. 2 is a perspective view of the solar cell panel shown in FIG.

FIG. 3 is a perspective view showing fixing of a vertical rail to the solar cell panel shown in FIG. 1;

FIG. 4 is a cross-sectional view showing an overlapping portion of a lower frame and an upper frame of FIG.

FIG. 5 is a cross-sectional view showing an inserted state of a lower frame and an upper frame of FIG. 1 in an overlapping portion.

6 is a side view in which the eave-side solar cell panel shown in FIG. 1 is engaged and fixed to the ridge-side solar cell panel.

FIG. 7 is a side view of the solar cell panel shown in FIG. 1 in a fixed state.

FIG. 8 is a perspective view between the solar cell panels shown in FIG.

9 is a sectional view taken along the line XI-XI shown in FIG.

10 is a partial cross-sectional view taken along the line XX shown in FIG.

FIG. 11 is a cross-sectional view showing a joint of a conventional solar cell panel.

FIG. 12 is a perspective view of the solar cell panel shown in FIG.

[Explanation of symbols]

55 roof, 100 solar panels, 100g
Gap, 100k ventilation layer, 200 lower frame,
200h, 200j Projection piece of lower frame, 20
2 overlapping portion, 203 storage portion, 250 filling member, 300 upper frame, 300j projecting piece of upper frame, 305r inclined portion, 320 cable, 400 cover, 400e opening, 420
Adjacent ventilation path, 500e auxiliary opening.

Continuing from the front page (72) Inventor Hiroyoshi Takigawa 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (72) Inventor Hironobu Nakamura 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Co., Ltd. F term in the company (reference) 2E108 KK04 LL01 MM00 NN07 5F051 BA03 EA01 JA02 JA04 JA06 JA09

Claims (12)

[Claims] 1. A rectangular solar cell panel having a solar cell, an upper frame for fixing an upper end of the solar cell panel, and a lower end of the solar cell panel being fixed. A solar cell panel having a lower frame that is also higher than the first frame.
A roof structure provided with a solar cell panel, wherein an overlapping portion is provided on which the lower frame of the solar cell panel can be mounted by being overlapped. 2. The stacking section according to claim 1, wherein the lower frame of the second solar cell panel is a storage section for storing an upper frame of the first solar cell panel. A roof structure comprising the solar cell panel according to 1. 3. The projection according to claim 1, wherein a projection is provided on the lower surface of the overlapping portion of the lower frame, and a projection is provided on the upper surface of the upper frame. A roof structure provided with the solar cell panel as described above. 4. The solar cell panel according to claim 3, further comprising a filling member interposed in a gap formed between the projecting piece of the lower frame and the projecting piece of the upper frame. Equipped roof structure. 5. A roof structure provided with a solar cell panel according to claim 1, wherein an inclined portion is provided on the lower surface of the lower end of the lower frame so as to be tapered. 6. After connecting and fixing the first solar cell panel to the roof, sliding the inclined part of the upper frame of the second solar cell panel into the storage part of the first lower frame. The method for constructing a solar cell panel according to claim 5, wherein the solar cell panel is stored. 7. The solar cell according to claim 1, wherein the lower frame of the solar cell panel or the lower frame and the upper frame are connected and fixed to the roof. Roof structure with battery panels. 8. A gap formed between a lower side surface of the side frame forming the solar cell panel and an upper surface of the roof,
A roof structure provided with the solar cell panel according to any one of claims 1 to 7, further comprising: a cable connecting the solar cell panel inserted into the gap. 9. A ventilation layer formed between the back surface of the solar cell panel and the roof, wherein the ventilation layer and the gap communicate with each other, and an airflow passing through the ventilation layer flows to the outside. And a road.
A roof structure comprising the solar cell panel according to any one of the above. 10. An adjacent ventilation path having a plurality of said solar cell panels juxtaposed at a predetermined distance and flowing an airflow formed between each of said adjacent solar cell panels; The roof structure provided with the solar cell panel according to claim 9, wherein the ventilation path is communicated with the solar cell panel. 11. A cover having a plurality of solar cell panels, a cover for closing a gap between adjacent solar cell panels from an upper surface, and an opening provided on a lower surface of the cover. Roof structure with solar panels. 12. The cover according to claim 10, further comprising: a cover having a plurality of solar cell panels, the cover closing a gap between the adjacent solar cell panels from above, and an auxiliary opening provided on the upper surface of the cover. A roof structure provided with the solar cell panel as described above.