JP3004160B2 - Rain cut-off device for rooftop solar cell device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rain breaker for a roof-mounted solar cell apparatus in which solar cell panel units are continuously arranged in the direction of inclination of the roof.

[0002]

2. Description of the Related Art In general, a solar cell panel unit constituting a roof-mounted solar cell device has a rectangular solar cell panel having a predetermined size and a frame member serving as a reinforcing member and a connecting member mounted around a rectangular solar cell panel. , And these frames are connected in a rectangular ring shape.

When such solar cell panel units are connected in a row in the direction of inclination of the roof, support bars extending in the direction of inclination are arranged on the upper surface of the roof base material at intervals equal to the width of the solar cell panel unit. The side frame of the solar cell panel unit is fixed to the support bar, and the upper surface and each side of each solar cell panel unit are positioned.

[0004] In order to prevent rainwater from penetrating into the upper surface of the roof base material from gaps formed between the solar cell panel units, watertightness is provided between the periphery of each solar cell panel unit and the upper surface of the support bar. A gutter groove is formed in the support bar to open to the upper surface to prevent condensation water generated on the lower surface of the solar cell panel from flowing down along the roof slope and falling to the upper surface of the roof base material. Then, the rainwater that passes over the peripheral frame material and the dew condensation generated on the lower surface of the solar cell panel are guided to the gutter groove of the support bar, and are drained from the lower end of the support bar.

[0005]

However, the conventional rooftop-mounted solar cell device comprises a watertight member provided on the support bar in an inclined direction and a watertight member provided on the lower or upper side of the solar cell panel unit. Does not have a structure to be completely contacted, the rainwater that has entered from between adjacent solar cell panel units, and when the condensed water generated on the lower surface of the solar cell panel flows down along the inclined surface, There is a problem in that the roof base material leaks and penetrates from the gap in the non-contact portion of the watertight member, and deteriorates the roof base material early.

SUMMARY OF THE INVENTION In view of the above, the present invention relates to a roof-mounted solar cell apparatus in which solar cell panel units are continuously arranged in a roof inclining direction. It is an object of the present invention to provide a rain break-out device which is improved to completely prevent infiltration of rainwater and dew water.

[0007]

In order to achieve the above object, according to the present invention, a support bar having a gutter groove on an upper surface thereof is provided on an upper surface of a sloped roof so that a longitudinal direction thereof coincides with an inclination direction of the roof. The solar panels are arranged side by side in the width direction of the roof at equal intervals with the width of the solar panel, and the side frame is placed on one of two opposite sides of the rectangular solar panel, and the side frame is placed on the other pair. A solar cell panel unit in which a frame and a lower frame are mounted, respectively, and a frame of four sides is connected in a rectangular shape, the side frame is desired to be in a gutter groove of the adjacent support bar, and the roof is inclined. In an on-roof solar cell device constructed by continuously laying the upper and lower frames adjacent to each other in a solar cell panel unit arranged in the direction, the side frame of the solar cell panel unit Of the gutter groove formed on the inner surface of the lower side of the solar cell panel The surface is continuously brought into contact with the upper end of the side wall of the gutter groove of the support bar, and the first water-tight member is interposed between the contact portions and extends over a solar cell panel unit continuously provided in the inclination direction of the roof. In the gutter groove formed on the inner surface of the side frame, a drain port communicating with the gutter groove of the support bar is formed outside the first watertight member, and at least one of the upper frame or the lower frame of the solar cell panel unit is formed. A solar cell panel unit in which both ends of a gutter groove formed on the inner surface of the lower frame below the solar cell panel communicate with the gutter grooves formed on the inner surface of the side frame, and the roof is adjacent to the roof in the inclination direction. A second watertight member extending over the entire length of the contact portion between the upper frame and the lower frame is interposed, and a gutter is provided on either the upper frame or the lower frame on the outdoor side of the second watertight member. A groove is formed, and both ends of the second watertight member are first watertight. It is characterized by comprising contacting the wood.

Further, the invention is characterized in that both ends of the gutter groove formed in the upper frame or the lower frame of the solar cell panel unit communicate with the gutter groove of the support bar.

Further, on the inner surface of the upper frame and the lower frame of the solar cell panel unit, on the lower side than the solar cell panel,
In addition, a gutter groove is formed above the gutter groove formed on the inner surface of the side frame, and both ends of the gutter groove are opened on the upper surface of the gutter groove formed on the inner surface of the side frame. Features.

[0010]

The condensed water generated on the lower surface of the solar cell panel is accommodated in at least the gutter groove of the lower frame, flows into the gutter groove formed on the inner surface of the side frame from the gutter groove, and is formed in the gutter groove. The water flows down from the drain port into the gutter groove of the support bar, and is discharged from the lower end of the support bar. The first watertight member is continuous between the bottom surface of the bottom of the gutter groove formed on the inner surface of the side frame of the solar cell panel unit and the upper end of the side wall of the gutter groove of the support bar in the direction in which the solar cell panel unit is continuously provided. The second watertight member is interposed at the contact portion between the adjacent upper frame and lower frame of the solar cell panel unit adjacent in the inclination direction of the roof over the entire length of the contact portion. Are in contact with the first watertight member, so that the entire periphery of each solar cell panel unit is closed by the watertight member. Therefore, dew condensation generated on the lower surface of the solar cell panel is prevented from entering the upper surface of the roof base material. Also, rainwater in the gutter grooves of the upper frame or the lower frame formed outside the second watertight member is prevented from entering the roof base material upper surface.

Further, when both ends of the gutter groove formed in the upper frame or the lower frame of the solar cell panel unit are communicated with the gutter groove of the support bar, the solar cell panel unit adjacent to the roof cell in the inclination direction of the roof is inclined. Rainwater that has entered between the upper frame and the lower frame flows out of the gutter groove of the upper frame or the lower frame into the gutter groove of the support bar, and is discharged to the outside from the lower end portion of the gutter groove of the support bar. Further, a gutter groove is formed on the inner surface of the upper frame and the lower frame of the solar cell panel unit, below the solar cell panel, and above a gutter groove formed on the inner surface of the side frame. When both ends of the gutter groove of the frame and the lower frame are opened on the upper surface of the gutter groove of the side frame, the connection of the gutter groove in the horizontal direction and the gutter groove in the inclined direction is easy, and the waterproof performance and the drainage performance are improved. Is also excellent.

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a solar cell panel unit according to the present embodiment, FIG. 2 is a perspective view showing the principle of mounting the solar cell panel unit on an inclined roof, and FIG. 3 is a plan view of a roof-mounted solar cell device configured by completing the above, FIG. 4 is a partially omitted XX line sectional view of FIG. 3, and FIG. 5 is a partially omitted Y of FIG.
FIG. 4 is a sectional view taken along line -Y.

First, the structure of the solar cell panel unit A will be described with reference to FIG. A solar cell panel unit (hereinafter, simply referred to as a panel unit) A is formed by attaching frames 2 to 4 around a solar cell panel 1 having a well-known configuration and formed in a rectangular shape having a predetermined size, and connecting the frames. Has become.
That is, a side frame 2 is mounted on the upper and lower sides of FIG. 1, an upper frame 3 is mounted on the right side of FIG. 1, and a lower frame 4 is mounted on the left side, respectively. The end side surfaces of the lower frame 3 and the lower frame 4 are in contact with each other, and are connected in a rectangular ring shape by a fixing tool such as a screw or an adhesive to form a single unit.

Next, the detailed structure of each frame will be described with reference to FIGS. As shown in FIG. 4, the side frame 2 has a main part 21 formed in a rectangular cylindrical shape in order to provide a required strength, and has a leg part 22 below the main part, The lower end of the leg has a fixed edge 23 extending outward, the main part 21 has a screw hole 24 for connection with the upper frame 3 and the lower frame 4, and the upper part of the main part. Has a fitting groove 25 which is opened on the facing surfaces of the left and right side frames 2. The left and right side frames 2 are symmetrically arranged in the same shape, and the end of the solar cell panel 1 is fitted into the fitting groove 25 via the cushion member 5, and the bead or caulking member 6 is used. Fixed.

A gutter groove 27 is formed in the side frame 2 by an inverted L-shaped bent edge 26 extending inside the main portion 21. A drain port 28 is formed at the bottom of the gutter groove 27 and penetrates downward from inside the gutter groove in the vicinity of the lower frame 4.

As shown in FIG. 5, the upper frame 3 has a main portion 31 similarly formed in a rectangular cylindrical shape so as to have a required strength, and an inner side surface of the main portion 31, that is, , Lower frame 4
A gutter groove 33 is formed by an inverted L-shaped bent edge 32 extending inward at an intermediate portion of the surface opposed to. The upper part of the main part 31 has a fitting groove 34 that opens in a direction facing the lower frame 4. Further, the upper frame 3 has a gutter groove 36 formed by an inverted L-shaped bent edge 35 extending outside the lower end. The height from the lower end surface to the upper end surface of the upper frame 3 is equal to the distance from the bottom lower surface of the gutter groove 27 of the side frame 2 to the upper surface of the fitting groove 25.

Like the upper frame 3, the lower frame 4 has a main portion 41 formed in a rectangular cylindrical shape to provide a required strength, and the inner surface of the main portion 41, that is, the upper frame 3, A gutter groove 43 is formed by an inverted L-shaped bent edge 42 extending inward at an intermediate portion of the opposing surfaces. In addition, on the upper part of the main part 41,
It has a fitting groove 44 that opens in a direction facing the upper frame 3. In the lower frame 4, further downward from the upper surface of the main portion 41,
That is, the covering portion 45 extending in the direction opposite to the upper frame 3 is formed. The height from the lower end surface to the upper end surface of the lower frame 4 is set equal to the height of the upper frame 3, and the solar cell panel 1 is inserted into the fitting groove 34 of the upper frame 3 and the fitting groove 44 of the lower frame 4.
Are fitted via a cushion member 5 and fixed by a bead or caulking member 6. in this case,
The gutter grooves 34, 44 of the upper frame 3 and the lower frame 4 extend to the inner side from the opposing tips of the respective fitting grooves 33, 43.
That is, the dew water that extends toward the center of the solar cell panel 1 and that is generated on the lower surface of the solar cell panel 1 causes gutter grooves 34 and 4 at the upper end or the lower end of the panel, respectively.
4 to be stored. The bottom lower surfaces of the gutter grooves 33 and 43 are present on a common plane parallel to the surface of the solar cell panel 1.

In this manner, the side surfaces of the longitudinal ends of the upper frame 3 and the lower frame 4 abut against the longitudinal end surfaces of the side frames 2 respectively, and tapping screws (not shown) are respectively attached to the upper frame 3 or the lower frame 4 from opposite sides. ), And each screw hole 24 of the side frame 2
Into a rectangular ring. In this state,
The upper surfaces of the frames 2, 3, and 4 exist on one plane.
Also, the bottom lower surface of the gutter groove 33 of the upper frame 3 and the gutter groove 4 of the lower frame 4.
3 is in contact with the upper end of the side wall of the bent edge 26 forming the gutter groove 27 of the side frame 2, and both ends of the respective gutter grooves 33 and 43 are connected to the gutter groove 27 of the side frame 2. Is opened on the upper surface of the. Furthermore, the leg 22 of the side frame 2
The upper frame 3 and the lower frame 4 protrude downward from the lower end surfaces by a predetermined distance.

On the other hand, as shown in FIGS. 2 and 5, the roof on which the panel units are connected is an inclined roof, and a support bar 7 extending on the upper surface of the roof base material B in the inclined direction.
Is the width of the panel unit A, that is, the left and right side frames 2
They are mounted in parallel with a predetermined interval corresponding to the distance between them.

This support bar has a reference numeral 7a shown in FIGS.
As shown by, there is an end support bar attached to the widthwise end of the roof, and an intermediate support bar attached to the widthwise middle portion of the roof, as indicated by reference numeral 7b in the figure. End support bar 7
Since a supports only one side frame 2 of one panel unit A, the basic configuration is the same except that it has half the width of the intermediate support bar.

Accordingly, only the structure of the intermediate support bar 7b will be described. This support bar has a fixed edge 7 for driving nails into the rafters or purlins 8 on the roof on both left and right sides or screwing screws.
1 and a main part 72 formed in a rectangular cylindrical shape to provide strength therebetween, and a gutter groove 73 opening to the upper surface is formed above the main part 72. The side walls 74 on both sides of the gutter groove 73 have the same height, and have a bent edge bent inward at the upper end. The bent edge constitutes a holding portion of a watertight member described later.

The panel unit A having the above configuration is
Using the support bars 7a and 7b or 7b and 7b adjacent to the left and right having the above-mentioned structure, the support bars are continuously provided on the roof as follows. That is, as shown in FIG. 2 and FIG. 5, first, a strip-shaped first portion continuous on the upper surface of the bent edge at the upper end of the side wall 74 of the gutter groove 73 of each of the support bars 7a and 7b over the entire length of the support bar. The watertight member 8a is placed and fixed by bonding or any other method.

The panel unit A at one end of the roof fits the leg 22 of one side frame 2 into the gutter groove 73 of the end support bar 7a, and the leg of the other side frame 2 The part 22 is fitted in the width direction half of the gutter groove 73 of the intermediate support bar 7b, and their legs are left on the upper surface of the bottom of each gutter groove 73,
The bottom lower surface (bent edge 26) of the gutter groove 27 formed on the inner side surface of the side frame 2 is placed on the first watertight member 8a, and the screws 9 are fixed from the fixed edge 23 of each side frame 2 to the gutter of each support bar. The panel unit A is fixed by being screwed into the bottom of the groove 73. Thereby, the upper end of the side wall 74 of the gutter groove 73 of the support bars 7a, 7b and the lower surface of the bottom of the gutter groove 27 of the side frame 2 (bent edge 26) abut with the watertight member 8a interposed therebetween. Will be done.

In this state, the drain port 28 formed at the bottom of the gutter groove 27 of the side frame 2 is connected to the first watertight member 8a and the side frame 2
(Main part 21 of the support frame 7)
a and 7b are communicated with the gutter groove 73.

As described above, when one end panel unit (A1 in FIG. 4) is installed on the roof,
The panel unit at the other end is similarly installed on the upper side or the lower side in the roof inclination direction of the panel unit. In this case, as shown in FIG. 5, the upper frame of the lower panel unit AL is 3 and the lower frame 4 of the upper panel unit AU are brought close to each other, and the covering portion 45 of the lower frame 4 covers a part of the upper frame 3 and abuts on the upper frame. Also, the main part 4 of the lower frame 4
A strip-shaped second watertight member 8b is tightly interposed between the lower end portion 1 and the outer surface of the bent edge 35 forming the gutter groove 36 of the upper frame 3. The second watertight member 8b has the same length as the upper frame 3 and the lower frame 4, and is provided in advance on the upper frame 3 or the lower frame 4 by bonding or the like. When the panel unit A at the end adjacent to the inclination direction of the roof is fixed, the second watertight member 8
Both ends of “b” are in close contact with the upper surfaces of the first watertight members 8a of the support bars 7a, 7b existing on the left and right sides of the panel unit A.

The gutter groove 36 formed outside the upper frame 3 exists outside the second watertight member 8b when viewed from the roof base material B.

The panel unit (A2 in FIG. 4) attached to the middle part of the roof is provided with a leg 2 of one side frame 2.
2 is fitted into the other half of the gutter groove 73 of the adjacent intermediate support bar 7b in the width direction, and the leg 22 of the other side frame 2 is fitted.
Are fitted in the width direction half of the gutter groove of the adjacent intermediate support bar 7b, and their legs are settled on the upper surface of the bottom of each gutter groove 73. Is screwed into the bottom of each gutter groove 73 to fix the panel unit A2.

When the installation of the panel unit A2 in the middle part is completed, the panel unit in the other middle part is placed on the upper or lower side in the roof inclination direction of the panel unit.
The second watertight member 8b is interposed between the upper frame of the lower panel unit and the lower frame of the upper panel unit, and is installed in the same manner as in the case of the end panel unit A1. Both ends of the watertight member 8b are in close contact with the upper surface of the first watertight member 8a at the upper end of the side wall of the gutter groove of the support bar.

In the middle support bar 7b, as shown in FIG. 4, a groove 10 opening upward between adjacent side frames 2 of a panel unit installed adjacent in the left-right direction.
Is formed, a closing member C extending in parallel with the support bar is fitted into the groove, and the groove is locked with a locking edge 29 formed on the outer surface of the side frame 2, and the opening surface is formed. It is closed. Since the closing member C is formed of synthetic rubber or the like, the reinforcing member D is fitted and mounted on the upper surface thereof.

In the same manner as described above, the panel unit A2 at the other intermediate portion and the panel unit A at the other end of the roof are provided.
1 are connected in the direction of inclination of the roof, and the closing member C and the reinforcing member D are mounted between the side frames of the panel units in each column, thereby completing the roof-mounted solar cell device.

In the above-described configuration, in each panel unit, the gutter groove 33 on the inner surface of the upper frame 3 and the gutter groove 43 on the inner surface of the lower frame 4 are respectively formed on the left and right side frames on the lower side of the solar cell panel 1. 2, and both ends are opened above the opening surface of the gutter groove 27 of the side frame 2. Therefore, most of the condensed water generated on the lower surface of the solar cell panel 1 flows down into the gutter groove 43 inside the lower frame 4, and the water that has flowed down into the gutter groove 33 of the upper frame 3, Gutter 33,
43, flows into the gutter groove 27 inside the side frame 2 from both ends,
It flows down into the gutter groove 73 of the support bar 7a or 7b from the drain port 28 provided near the lower end of the gutter groove.

On the other hand, a second watertight extending between the contact portions between the adjacent upper frame 3 and lower frame 4 of the panel unit connected in the inclined direction along the entire length of the upper frame and the lower frame. Since the member is interposed, rainwater that easily enters the gap between the contacted upper frame and lower frame is prevented from further entering by the second watertight member. And the stopped rainwater is the second
It is accommodated in the gutter groove 36 outside the watertight member. The gutter 36
As shown in FIGS. 1 and 2, both ends of the gutter are opened on the same plane as the end surface of the side frame 2, so that the rainwater contained in the gutter can be supported from the end of the gutter. 7a or 7
It is discharged into the gutter groove 73 of b. And the second watertight member 8
b are in close contact with the upper surface of the first watertight member 8a,
Since the water-tight member is continuous over the entire periphery of the panel unit, rainwater that may move along the bottom surface of the gutter groove 33 of the upper frame 3 or the gutter groove 43 of the lower frame 4 also moves inside the panel unit frame. There is no end to it. The water that has flowed down into the gutter groove of the support bar is discharged from its lower end into the rain gutter.
Therefore, neither the dew condensation water generated in the panel units nor the rainwater that has entered between the panel units is completely prevented from entering the roof base material.

[0033]

As described above, according to the present invention, in a rooftop-mounted solar cell apparatus in which solar cell panel units are continuously arranged in the direction of inclination of the roof, the infiltration of rainwater and dew condensation is completely prevented. Can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a solar cell panel unit constituting a rooftop solar cell device according to the present invention.

FIG. 2 is a perspective view showing a structure in which the panel unit is installed on an inclined roof.

FIG. 3 is a plan view of a solar cell device installed on a roof.

FIG. 4 is a sectional view taken along line XX of FIG. 1;

FIG. 5 is a sectional view taken along line YY of FIG. 1;

FIG. 6 is a cutaway perspective view of a main part showing a main part of the rain breaker according to the present invention.

[Explanation of symbols]

 Reference Signs List A, A1, A2 Solar cell panel unit 1 Solar cell panel 2 Side frame 21 Main part 22 Leg 23 Fixed edge 25 Fitting groove 26 Bending edge 27 Gutter groove 28 Drain outlet 3 Upper frame 31 Main part 32 Bending edge 33 Gutter groove 34 fitting groove 4 lower frame 41 main part 42 bent edge 43 gutter groove 44 fitting groove 45 covering part 7, 7a, 7b support bar 73 gutter groove 74 side wall 8a first watertight member 8b second watertight member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01L 31/04-31/078 E04D 13/18

Claims (3)

(57) [Claims] 1. A support bar having a gutter groove on an upper surface thereof is arranged on an upper surface of a sloped roof at an equal interval with a width of a solar cell panel described later in a width direction of the roof so that a longitudinal direction of the support beam is coincident with a slope direction of the roof. And a side frame is mounted on one of two opposite sides of the rectangular solar cell panel, an upper frame and a lower frame are mounted on the other pair of sides, and a four-sided frame is provided. The rectangular solar cell panel unit, the side frame is desired to the adjacent gutter groove of the support bar, and, adjacent to the upper frame of the solar cell panel unit disposed in the inclination direction of the roof and In a rooftop-installed solar cell device configured to be laid continuously by abutting a lower frame, the solar cell panel is formed on an inner surface of a side frame of the solar cell panel unit below the solar cell panel. The lower surface of the bottom of the gutter groove is continuously connected to the upper end of the side wall of the gutter groove of the support bar. A first watertight member that is continuous with a solar cell panel unit disposed in the inclination direction of the roof is interposed at the contact portion, and the support rail is formed from a gutter groove formed on an inner surface of the side frame. A drain port communicating with the gutter groove of the solar cell panel unit is formed outside of the first watertight member, and at least the inner surface of the lower frame of the upper or lower frame of the solar cell panel unit is lower than the solar cell panel. The both ends of the gutter groove formed on the side are communicated with the gutter groove formed on the inner surface of the side frame, and the contact portion between the upper frame and the lower frame of the solar cell panel unit adjacent in the inclination direction of the roof is formed. Interposing a second watertight member extending over the entire length of the abutting portion, forming a gutter groove on one of the upper frame and the lower frame on the more outdoor side than the second watertight member, Both ends of the first watertight member The contacted composed, flashing device roof-installed solar cell device. 2. The roof-mounted solar system according to claim 1, wherein both ends of the gutter grooves formed in the upper frame or the lower frame of the solar cell panel unit are communicated with the gutter grooves of the support bar. Rain breaker for battery device. 3. A gutter groove is formed on the inner surface of the upper and lower frames of the solar cell panel unit below the solar cell panel and above a gutter groove formed on the inner surface of the side frame. 2. The gutter groove according to claim 1, wherein both ends of the gutter groove are opened on the upper surface of the gutter groove formed on the inner surface of the side frame.
The rain-fed device for a roof-mounted solar cell device according to the above.