JP3408729B2 - PV ventilation member and ridge ventilation structure using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ridge ventilation member for ventilating a space between a roof surface and a solar cell (hereinafter referred to as "solar cell") mounted on the roof surface.

[0002]

2. Description of the Related Art The power generation of a solar cell (PV module) installed on a roof surface decreases as the temperature rises. Therefore, for example, as shown in FIG. 13, when the solar cells PV are installed side by side on the roof panel 51 of the building 50, the ventilation space 52 is provided between the solar cells PV and the roof panel 51.
13, the air is supplied from the back of the eaves 54 and discharged from the ridge ventilation member 53 through the ventilation space 52, as shown by the arrow in FIG. 13, thereby preventing the temperature of the solar cell PV from rising.

Conventionally, when installing the ridge ventilation member 53 in the roof ridge having the solar cell PV on one of the roof surfaces, the spacer 56 corresponding to the protrusion in the thickness direction of the solar cell PV is installed in the roof ridge 53. It is fixed to the ridge-side end of the roof panel 51 which is not installed, and the ridge ventilation member 5 is provided in a state of straddling between the spacer 56 and the ridge-side end of the solar cell PV.
I am trying to install 3.

[0004]

However, in the above conventional ridge ventilation structure, since the spacer 56 is provided at the ridge-side end of the roof panel 51 on which the solar cell PV is not installed,
The height Hp of the ridge ventilation member 53 is higher than the normal ventilation ridge height Hn of the attic 55 by a height dH corresponding to the amount of the spacer 56 (protrusion in the thickness direction of the solar cell PV). Therefore, in the above-mentioned conventional building ventilation structure, there is a drawback in that it is necessary to design the entire roof to be low in consideration of the building height limit based on the Building Standards Law, and the effective space in the attic is narrowed.

Further, in the case of a prefabricated house in which the ventilation ridge height Hn of the attic 55 is standardized to the limit of the ridge height according to the Building Standards Law, the height dn is increased by the conventional prefabricated house. The ridge ventilation structure cannot be adopted,
The ridge ventilation of the solar cell PV itself cannot be performed.
In view of such an actual situation, the present invention enables ventilation of a roof with a solar cell installed at almost the same height as ventilation of a roof of a normal roof, thereby ensuring an effective space in the attic and prefabricated house. Even if it is, it is an object of the present invention to provide a PV ventilation member and a ridge ventilation structure using the same, which enables ridge ventilation of solar cells.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is,
The ventilation member for PV of the present invention includes the first attachment portion having a ventilation function attached to the ridge-side end of the solar cell attached to the roof surface, and the ridge ventilation member arranged along the roof ridge portion. A second attachment portion attached to the ventilation portion on the roof surface side and the two attachment portions are integrated so that the first attachment portion is separated from the second attachment portion by an amount of protrusion in the thickness direction of the solar cell. And a connecting plate portion having two bent portions that are bent in different directions so as to be connected to each other.

In order to use the above-described PV ventilation member in a roof ridge ventilation structure, a first mounting portion is attached to the ridge-side end of a solar cell attached to the roof surface, and ventilation is provided at both left and right ends of the ridge ventilation member. The second attachment portion may be attached to the ventilation portion on the roof surface side where the solar cell is provided. In this case, the connecting plate portion that integrally connects the first and second mounting portions has two bent portions that are bent in different directions,
For example, as shown in FIG. 1, since the PV ventilation member is installed in a state where a step corresponding to the amount of protrusion in the thickness direction of the solar cell is formed by the two bent portions, the height of the ventilation ridge is set to the solar cell. There is no need to increase the height corresponding to the height of the upper surface of the.

Further, the PV ventilation member of the present invention has a first attachment portion having a ventilation function attached to the ridge side end of the solar cell attached to the roof surface, and the roof surface and the ridge portion as boundaries. A second mounting portion having a ventilation function that is fixed to the ridge-side end of another roof surface, and a connecting plate portion that has two bent portions that are bent in the same direction so as to integrally connect both mounting portions. , Are provided. In order to use the above-mentioned PV ventilation member for a roof ridge ventilation structure, a first attachment portion is attached to the ridge-side end of the solar cell attached to one roof surface,
The second mounting portion may be attached to the ridge-side end of the other roof surface where the solar cell is not provided.

In this case, since the connecting plate portion for integrally connecting the first and second mounting portions has two bent portions bent in the same direction, for example, as shown in FIG. 12, these two bent portions are bent. The height of the top end surface formed in the middle of the connecting plate portion can be suppressed to a low level by the section, and it becomes unnecessary to increase the height of the ventilation ridge in accordance with the height of the upper surface of the solar cell.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 9 show a first embodiment of the present invention. The PV (for solar battery) ventilation member 1 of the present embodiment covers the solar cell PV and the roof by covering the ridge-side end of the solar cell PV installed on the roof surface 2A on the south side of the building from above. Ventilation space 3 formed between the surface 2A
It is for ventilating, and is formed by bending a thin metal plate.

As shown in FIG. 1, this PV ventilation member 1
Has a first mounting portion 5 on the ridge-side end portion 4 of the solar cell PV on the lower side, and a second mounting portion 6 on the ridge portion 7 of the roof 2 on the upper side.
And a connecting plate portion 1 for integrally connecting these mounting portions 5 and 6
The connecting plate portion 1A is provided with A, and the connecting plate portion 1A has bent portions 9 and 10 which are bent in directions different from each other in parallel with the ridge portion 7 so that the two mounting portions 5 and 6 are parallel to each other. I have it. The step D generated by the bent portions 9 and 10 between the mounting portions 5 and 6 of the ventilation member 1 for PV is a top end height DPV from the roof surface 2A of the solar cell PV (projection in the thickness direction of the solar cell). Amount) is set to almost the same size. Further, the plane spacing S between the bent portions 9 and 10 (see FIG. 3) is
It is determined in accordance with the installation distance of the ridge-side end 4 of the solar cell PV from the ridge 7. If the step D and the plane interval S are determined, the inclination angle θ of the connecting plate portion 1A is also determined.

The first attachment portion 5 attached to the ridge-side end portion 4 of the solar cell PV has a ventilation function by itself. That is, the first attachment portion 5 has a ventilation mechanism 6 on the lower surface side thereof, which includes a waterproof member 21 and a draining member 22 described later.
It has 0. Further, the first mounting portion 5 has a lower end portion bent toward the roof surface 2A side and a tip end thereof folded back in the same direction to form a water draining portion 11 for fixing the ventilation mechanism 60. A plurality of connecting holes 12 are provided at predetermined intervals. On the other hand, since the second mounting portion 6 fixed to the ridge 7 is connected to the ventilation mechanism 60 of the ridge ventilation member 26 described later, it does not have a ventilation function by itself. The upper end of the second mounting portion 6 is folded back to form a draining portion 13.

The roof 2 is provided with rafters 14 installed on both sides (south and north sides) of the ridge 7, a roof plate 8 stretched on the rafters 14, and an asphalt felt or the like on the top surface of the roof plate 8. Roof tiles 16 that are raised through the waterproof sheet 15. Solar cell PV on roof surface 2A on the south side
In a portion where is installed, support tiles 17 are fixed to the waterproof sheet 15 in parallel with each other at a predetermined interval in the roof flow direction and in a direction orthogonal to the roof tile 16 without roofing the roof tile 16. . Then, the solar cell main body was laminated with tempered glass on the support rails 17 so as to have weather resistance.
The V-module PVM is fixed. A cross bar 18 (antiseptic material) slightly higher than the upper surface of the PV module PVM is fixed to the upper end of the support rail 17 of the ridge side end 4 of the solar cell PV.
A draining member 19 is attached between M and M.

The first attachment portion 5 of the PV ventilation member 1 is shown in FIG.
As shown in, the ventilation mechanism 60 is provided on the back side of the connection hole 12 by utilizing the connection hole 12. This ventilation mechanism 60
The waterproof member 21 and the draining member 22 are configured to be fixed to each other by a connecting tool (for example, a rivet) 23 so as to overlap with each other on the back surface side of the first mounting portion 5. And the first mounting portion 5
A connecting metal fitting 24 having a substantially hook-shaped cross section (see FIG. 8) is fitted to the draining portion 11 and a base portion 24A of the connecting metal fitting 24 is fixed to the crosspiece 18 together with the draining member 22 by a screw nail 25.

Between the bent portions 9 and 10 of the PV ventilation member 1,
It is supported from below by a support base 27 mounted on the base plate 8 via a waterproof sheet 28. Further, the second attachment portion 6 of the ventilation member 1 for PV is attached to the top 29 of the purlin 7 via the waterproof sheet 15 and the ventilation member 2 for the purlin.
The waterproof sheet 2 together with the draining member 22 and the connecting fitting 24 of 6
It is fixed by a screw nail 30 via 8. The ventilation mechanism 60 including the waterproof member 21 and the draining member 22 and the connecting fitting 24 are also provided at both left and right ends of the ridge ventilation member 26. The waterproof member 21 has a cross section L as shown in FIG.
It is made of a thin metal plate having a shape, and is attached such that the hanging piece 21A is located above the draining member 22.

As shown in FIGS. 4 to 6, the draining member 22 is formed by bending a thin metal plate such that each bent portion is parallel to the longitudinal direction of the ridge, and is parallel to the roof surfaces 2A and 2B. It has a polymerization base portion 22A to be placed, and the upper side thereof is made shorter than the lower side to form a rising piece 22B, and the lower ridge side end portion of the polymerization base portion 22A is bent in a hook-shaped cross section to form an upper rising portion 22C.
And the lower hanging drainer piece 22D are parallel to each other, and the rising portion 22
A connecting portion 22E for connecting the ventilation members 1 and 26 is formed between C and the drooping draining piece 22D. The rising portion 22C is provided with a large number of vent holes 31 formed of horizontally long holes at predetermined intervals.

The connecting fitting 24, as shown in FIG.
The bottom side of the base portion 24A is inserted between the polymerization base portions 22A of the drainage drain 22 and the rising portion 24B following the base portion 24A is a rising drainage piece 22 of the drainage drain 22.
The hanging piece 24C, which is formed so as to come into contact with B and which is formed at the tip, engages with the ventilation members 1 and 26 and also serves as a drainer 11, 32.
It is designed to be fitted and locked in. The connecting fittings 24 are arranged at a predetermined interval in the longitudinal direction of the ridge, and a ventilation passage 33 is secured between the connecting fittings 24.

As shown in FIG. 9, the ridge ventilation member 26 is formed by bending a thin metal plate to have a mountain-shaped cross section, is provided with draining portions 32 at both ends, and has the waterproof member on the inner side opposite to the inclined surfaces on both sides. The ventilation mechanism 60 including the draining member 21 and the draining member 22 is fixed by the rivet 23. The ridge ventilation member 26 is provided with screw nails 30 and 34 through the base 22A of the draining member 22 and the connecting fitting 24 inserted into the draining member 32 and fitted into the draining member 32, and the south side is attached to the attachment portion 6 of the ventilation member 1. Further, the north side is fixed to the ridge section 7 via the roof tiles 16 via the Kasaki 29 and the roof tiles 29, whereby the ventilation passages 35 in the attic are formed on both the south and north sides.

According to this embodiment having the above structure, when the temperature of the air in the ventilation space 3 of the solar cell PV and the roof surface 2A rises, the warm air rises in the space 3 and the lower side of the ventilation member 1 for PV. It flows into the space, flows as shown by the arrow (a) in FIG. 1, and is discharged into the atmosphere through the ventilation port 31 and the ventilation passage 33. Along with the discharge of this warm air, outside air flows in from below the ventilation space 3 to naturally ventilate the solar cell PV.
The temperature rise is prevented and the power generation is prevented from decreasing. Also,
From the ridge ventilation member 26, the air inside the attic is discharged as shown by the arrow (b) in FIG. 1, and the attic ventilation is naturally performed.

On the other hand, at the time of strong wind and rain or snowstorm, if rainwater and snow enter the ventilation passages 33 and 35 from the outdoor side through the draining pieces 22B and 22D in the ventilation passages 33 and 35, the water is drained. Vortices are generated behind the pieces 22B and 22D (on the ridge side), the wind speed is suppressed, and intrusion of rainwater and the like is prevented. 10 and 11 show a second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a rising portion 36, a connecting portion 37 and a draining piece 38 are formed in a key shape on the upper surface side of the second attachment portion 6 of the PV ventilation member 1, and the rising portion is horizontally long. In that the vent 39 of the hole is provided,
By forming a drainage part, the drainage member 22 can be omitted. Therefore, the connecting portion 37 of the PV ventilation member 1 and the ridge ventilation member 26 can be integrally connected by the rivet 23 via the waterproof member 21.

Also in this second embodiment, it is possible to expect the same effects as those of the first embodiment. Therefore, the components common to the first embodiment will be described with reference to FIG.
~ The same reference numerals as those in Fig. 3 are given and detailed description thereof is omitted. 12
Shows a third embodiment of the present invention. The difference between the present embodiment and the first embodiment is that the second attachment portion 6 of the PV ventilation member 1 is formed parallel to the north roof surface 2B (that is, orthogonal to the first attachment portion 5), The PV ventilation member 1 also serves as the ridge ventilation member 26 in the first embodiment.

Therefore, in this embodiment, the number of constituent parts of the ventilation building can be reduced, and the construction time and cost can be reduced. Ventilation member 1 for PV in this case
Then, both bent portions 9 and 10 are bent in the same direction so that a substantially horizontal top end surface 40 is formed in the middle of the connecting member 1A, and the second mounting portion 6 has the tip of the first mounting portion 5 at the tip thereof. A drainer 41 that is the same as the drainer 11 is provided, and the connection hole 4
2 is provided and has the same ventilation function as the first mounting portion 5. That is, the ventilation mechanism 60 including the waterproof member 21 and the drain member 22 is attached to the first and second attachment portions 5 and 6 of the PV ventilation member 1 by the screw nails 25 and 34 via the connecting metal fitting 24. Has been.

Also in this embodiment, the ventilation member 1 for PV is used.
Is stably supported on the roof surface 2A and the ridge 7 via the support base 27, and ventilation of the ventilation space 3 of the solar cell PV and attic ventilation can be performed. Therefore, the same components as those in the first embodiment are designated by the same reference numerals as those in FIG. 1, and detailed description thereof will be omitted. In the third embodiment, PV
As shown by the two-dot chain line in FIG. 12, the top end surface 40 of the ventilation member 1 for a vehicle can be formed into a mountain shape having three bent portions so as to have a slight inclination, and the top end surface 40 is curved upward. It can also be formed. Further, according to the third embodiment, the ridge-side end 4 of the solar cell PV can be brought as close as possible to the ridge.

According to each of the above-described embodiments of the present invention, even when the solar cell PV is installed on the roof 2 of the building, the maximum height of the roof ridge can be set to the height defined by the Building Standard Law or less. In addition, ventilation of the solar cell PV and ridge ventilation can be performed in parallel. The present invention is not limited to the above embodiment, and it is sufficient that the number of bent portions is at least two. Further, the bent portion is not limited to the one in which the ridge line can be clearly recognized as shown in the figure, but can also be formed by a radius in which the ridge line does not appear.

[0025]

According to the present invention, even when a solar cell is installed, it is not necessary to increase the height of the ventilation ridge in accordance with the height of the top surface of the solar cell. Therefore, the roof ridge where the solar cell is installed is installed. Ventilation can be performed at almost the same height as the normal roof ridge ventilation, so that it is possible to secure sufficient effective space in the attic and even in the case of prefabricated houses where the ridge height is set to the limit of the building. It is possible to use solar cell ridge ventilation without changing the design.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a first embodiment of the present invention is attached to a roof surface.

FIG. 2 is a plan view of the same embodiment.

FIG. 3 is an enlarged view of a left side surface of FIG.

FIG. 4 is a cross-sectional view of drainage in the same embodiment.

5 is a top view of FIG. 4. FIG.

FIG. 6 is a right side view of FIG.

FIG. 7 is a perspective view of a waterproof member according to the same embodiment.

FIG. 8 is a perspective view of the connecting fitting.

FIG. 9 is a cross-sectional view of the ventilation member of the same building.

FIG. 10 is a partially omitted cross-sectional view showing a state in which a second embodiment of the present invention is attached to a roof surface.

FIG. 11 is a drawing of the second embodiment seen from the ridge side.

FIG. 12 is a cross-sectional view showing a state in which a third embodiment of the present invention is attached to a roof surface.

FIG. 13 is a schematic cross-sectional view showing a conventional example.

[Explanation of symbols]

1 PV ventilation member 2 roof 2A roof surface 2B roof surface 3 ventilation space 4 Solar cell ridge end 5 First mounting part 6 Second mounting part 7 buildings 9 Bend 10 Bend 16 roof tiles 26 building ventilation members PV solar cell

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04D 13/16-13/18 E04B 1/70 E04B 7/18

Claims (4)

(57) [Claims] 1. The solar cell (PV) on the ridge side end (4) of the solar cell (PV) attached to the roof surface (2A ).
Ventilation passage (33) is formed between the ridge side end (4)
First mounting part (5), which is mounted so that the roof (2)
A second attachment part (6) attached to the ventilation part on the roof surface (2A) side of the ridge ventilation member (26) arranged along the ridge part (7) of the above, and the first attachment part (5). Bending in different directions so as to integrally connect the mounting portions (5) and (6) so as to be separated from the second mounting portion (6) by an amount of protrusion in the thickness direction of the solar cell (PV). A ventilation member for PV, comprising: a connecting plate portion (1A) having two bent portions (9) and (10). 2. A solar cell (PV) is laid on one roof surface (2A) of a pair of left and right roof surfaces (2A) (2B) with a ridge (7) as a boundary, and the other roof surface (2). 2B), a roof tile (16) is laid, and a ridge ventilation structure is provided in which a ventilation ridge having an attachment part connected to the ridge side end (4) of the solar cell (PV) in a ventilated manner is provided. The ventilation building is the pair of left and right roof surfaces (2A) (2B)
Of the ridge ventilation member (26) having ventilation parts at the left and right ends respectively abutting the ridge side end of the ridge, and the second attachment to the ventilation part on the one roof surface (2A) side of the ridge ventilation member (26). A ridge ventilation structure using a ventilation member for PV, comprising: the ventilation member (1) for PV according to claim 1 to which a part (6) is attached. 3. The solar cell (PV) on the ridge side end (4) of the solar cell (PV) attached to the roof surface (2A ).
Ventilation passage (33) is formed between the ridge side end (4)
Mounting part (5) that is mounted as described above, and another roof surface (2) with the roof surface (2A) and the ridge (7) as a boundary.
On the ridge side end of B), with the ridge side end of the roof surface (2B)
A second mounting portion (6) fixed so as to form a ventilation passage (35) therebetween, and a connecting plate portion (1A) integrally connecting both mounting portions (5) and (6). The connecting plate portion (1A) has an upper end of the connecting plate portion (1A),
Make sure that the same height as the ridge side of the second mounting part 6
With two bent parts (9) (10) bent in the same direction
A ventilation member for PV, which is characterized in that 4. A solar cell (PV) is laid on one roof surface (2A) of a pair of left and right roof surfaces (2A) (2B) with a ridge (7) as a boundary, and the other roof surface ( 2B), a roof tile (16) is laid, and a ridge ventilation structure is provided in which a ventilation ridge having a ventilation portion connected to the ridge-side end portion (4) of the solar cell (PV) in a permeable manner is provided. The ventilation building is a ventilation member for PV (1) according to claim 3.
And the first mounting portion (5) of the PV ventilation member (1) is the solar cell (P) on the one roof surface (2A).
V)) is attached to the ridge side end (4), and the second attachment part (6) is attached to the ridge side end of the roof tile (16) of the other roof surface (2B). Building ventilation structure using the ventilation member for PV.