JPH085159A - Solar energy utilizing roof - Google Patents

Abstract

PURPOSE:To provide a solar energy utilizing roof which is constituted to effectively utilize solar energy even in a small scale housing and have excellent construction workability, and provide a roof unit used in the solar energy utilizing roof. CONSTITUTION:A solar battery cell 14 is laid on the surface of a building roof 11 and a breather layer 21 to pass air by which the solar cell panel 14 is cooled is formed on the back of the solar cell panel 14. A handling box 27 being a heat utilizing means 26 to utilize air heated in the breather layer 21 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof using solar energy, which is disposed on the roof of a building such as a house and uses the solar energy obtained by a solar cell panel or the like in the building. .

[0002]

2. Description of the Related Art Conventionally, as this type of solar energy utilizing roof, there has been known a solar cell-equipped building roof 1 described in Japanese Patent Application Laid-Open No. 5-239895 shown in FIG.

In this solar cell-equipped building roof 1, a roof panel body 2 has a plywood 3 having an asphalt roofing on its upper surface. On the lower surface side of the plywood 3, a plurality of vertical core members 4 and horizontal core members 5 are fixed.

A plurality of solar cell modules 6 ... Are further attached to the upper surface side of the roof panel body 2 via spacers (not shown). Then, the voids of the plywood 3 and the solar cell modules 6 formed by the spacers are extended from the eaves portion 7 to the ridge portion 8 to form the ventilation layer 9
Is composed.

The solar cell module 6 ...
The rising airflow flowing through the ventilation layer 9 receives a cooling action.
For this reason, the solar cell modules 6 ... Are cooled from the back surface side, the temperature rise is suppressed, and the energy conversion efficiency is always maintained high, so that stable power supply can be achieved.

[0006]

However, in such a conventional roof 1 with a solar cell, the air that has cooled the solar cell modules 6 is exhausted from the ridge 8 to the outside.

For this reason, since the air heated by the cooling of the solar cell modules 6 and having a large amount of heat energy has been discarded, it is difficult to say that the energy efficiency is good.

Further, in such a conventional building roof 1 with a solar cell, the area of the building roof on the south side where the sun rays S are sufficiently irradiated is limited.

Therefore, when the solar cell modules 6 ... Are arranged, it is difficult in terms of space to install them together with another solar heat energy utilization device such as a solar water heater.

If it is not a relatively large building,
In order to support the load caused by the increase in weight, the lower building structure had to be made strong, and it was difficult to install it together in small houses.

Further, the work of disposing the solar cell 2 and the solar water heater 3 on the surface of the building roof 5 is a work at a high place, and it is difficult to say that the workability is good.

[0012] Therefore, the present invention provides a roof using solar energy and a roof unit used for the roof using solar energy, which can effectively use solar energy even in a small-scale building or the like and has good construction workability. Is an issue.

[0013]

In order to achieve the above object, according to claim 1 of the present invention, a solar cell panel is laid on the surface of a building roof, and the back surface side of the solar cell panel is provided. The solar energy utilization roof is characterized by forming a ventilation layer through which air that cools the solar cell panel is formed, and having heat utilization means that utilizes warmed air in the ventilation layer.

On the surface of the building roof, a glass panel is laid adjacent to the solar cell panel, and the upstream side of the ventilation layer is formed on the back surface side of the solar cell panel. The downstream side of the ventilation layer can be formed on the back surface side of the.

Further, the ventilation layer may be formed along the slope of the building roof so as to form an upstream side on a lower side of the slope and a downstream side on a higher side of the slope.

Further, the building roof may be composed of a roof unit constituting an upper part of the unit building.

Further, the heat utilizing means may be configured to have a fan for blowing the warmed air into the building or outdoors.

Further, a heat exchanger for converting the heat energy of the warmed air into the heat energy of another heat medium may be provided.

The heat exchanger converts the heat energy of the warmed air into the heat energy of the fluid flowing in the distribution pipe, and is arranged in the roof unit so that the distribution pipe allows the building to be heated. You can also lead in.

The heat utilization means has an exhaust part for discharging the warmed air to the outside and a ventilation duct for blowing the air into the building, and the exhaust from the exhaust part and the blowing into the building are performed. It is also possible to have a switching damper for switching.

Further, it is possible to have a ventilation layer closing damper which is interposed between the ventilation layer and the air duct and the exhaust portion to prevent the inflow of air into the ventilation layer.

It is also possible to have a snow-melting fan located between the blower duct and the ventilation layer, for blowing the air inside the building into the ventilation layer.

[0023]

[Operation] According to the structure described in claim 1, on the back surface side of the solar cell panel laid on the surface of the building roof, a ventilation layer for passing air for cooling the solar cell panel is formed. Therefore, the temperature rise of the solar cell panel is suppressed and the energy conversion efficiency is maintained.

Further, since the warmed air is used in the ventilation layer by the heat utilizing means, solar energy can be utilized without waste.

Further, since air is passed through the ventilation layer, there is almost no increase in weight. Therefore, it is not necessary to make the lower part of the building structure strong, and it is not necessary for the structure to be relatively large-scale. Also, it can be installed together in small houses.

On the surface of the roof of the building, a glass panel is laid adjacent to the solar cell panel, and the upstream side of the ventilation layer is formed on the back surface side of the solar cell panel. When the downstream side of the ventilation layer is formed on the side, in the ventilation layer, the solar cell panel is cooled on the upstream side, and the warmed air is further irradiated on the downstream side with sunlight that passes through the glass panel. In response to this, the temperature becomes high, and this high temperature air can be used by the heat utilization means. Therefore, the solar energy can be used more efficiently.

When the ventilation layer is formed along the slope of the building roof so that the upstream side is formed on the low side of the slope and the downstream side is formed on the high side of the slope, the warmed air is It rises along the slope of the building roof and becomes hot when exposed to sunlight transmitted through the glass panel. For this reason,
It is possible to use air having a large amount of heat energy by the heat utilization means while improving the circulation of air.

Further, if the building roof is composed of a roof unit constituting the upper part of the unit building, if the solar cell panel, the ventilation layer and the like are incorporated in the roof unit in advance, the roof unit will be installed at the construction site. The construction is completed simply by placing on the upper part of the unit building.

For this reason, work at a high place as in the past is eliminated, and workability is good.

When the heat utilization means has a fan for blowing warmed air to the inside of the building or the outside, the warmed air is efficiently blown to the inside of the building by the operation of the fan. In addition, when it is not necessary to use heat energy in the building, the air warmed by cooling the solar cell panel can be blown outdoors. Therefore, the energy conversion efficiency of the solar cell panel can always be maintained and used.

Further, when the heat utilization means has a heat exchanger for converting the heat energy of the warmed air into the heat energy of another heat medium, for example, if water is warmed by the heat exchanger. , It can be used for hot water supply, heating, heat storage, etc. in the building.

The heat exchanger converts the heat energy of the warmed air into the heat energy of the fluid flowing in the distribution pipe, and is arranged in the roof unit so that the distribution pipe allows the building to be heated. If the heat exchanger is incorporated into the roof unit in advance, the workability is good.

Moreover, if the heated air is converted into the heat energy of liquid such as water in the roof unit, the high temperature air is immediately converted into the liquid having a low specific heat to prevent the diffusion of the heat energy. However, it can be efficiently installed in the building.

At this time, since only air flows in the ventilation layer, there are no problems such as weight increase, water leakage, and rust.

Further, the heat utilization means has an exhaust part for discharging the warmed air to the outside and a ventilation duct for blowing the air into the building, and the exhaust from the exhaust part and the blowing into the building are performed. If you have a switching damper that switches, for example, by switching the switching damper, warm air is blown into the ventilation duct in the winter to heat the building, and in the summer the warm air is exhausted from the exhaust section. , It can be used properly depending on the case.

Further, when the ventilation layer blocking damper is interposed between the ventilation layer and the air duct and the exhaust portion to prevent the inflow of air into the ventilation layer, it becomes damp indoors or outdoors at night. It is possible to prevent air from entering the ventilation layer through the blower duct and the exhaust portion to cause dew condensation.

For this reason, a short circuit or the like due to dew condensation on the back surface side of the solar cell panel is prevented, and the durability is good.

If the snow-melting fan is located between the blower duct and the ventilation layer to blow the air in the building into the ventilation layer, snow will be accumulated on the solar cell panel or the glass panel. However, warm air in the room can be blown into the ventilation layer from the blower duct to warm the solar cell panel or the glass panel and melt the snow. Therefore, the durability is further good.

[0039]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention. The same or equivalent parts as those of the conventional example are designated by the same reference numerals.

First, the structure will be described.
In the unit building as the building of this embodiment, a plurality of roof units 12 forming a building roof 11 are arranged at the upper part of the unit building 10.

As shown in FIG. 2, the roof unit 12 has a structure in which a vertical frame member 13a, a horizontal frame member 13b, and an upper frame member 13c having a predetermined slope are combined in a substantially trapezoidal shape on the surface of a support frame 13 and the It is mainly configured by laying a battery panel 14 and a glass panel 15 arranged adjacent to the solar cell panel 14.

First, rafters 16 and heat insulating materials 17 are laid on the upper frame members 13c.

On the rafters 16 ..., a base plate 18 made of wood plywood is laid with a waterproof sheet 19 on the surface.

On the waterproof sheet 19, a plate-shaped metal plate roof tile 20 for preventing heat diffusion is laid.

On this metal plate roof tile 20, there is formed a ventilation layer 21 which is formed on the back surface side of the solar cell panel 14 and through which air for cooling the solar cell panel 14 passes. That is, a plurality of square-shaped first spacers 22 that secure a space on the upstream side 21a of the ventilation layer 21 are arranged along the gradient direction, and are configured to support the solar cell panel 14 from below. ing.

Further, on the downstream side 21b of the ventilation layer 21, second spacers 23 are disposed so as to be superposed on the first spacer 22 so as to support the glass panel 15 from below. . Therefore, the solar cell panel 1
The upstream side 21a of the ventilation layer 21 is formed on the back surface side of 4 to serve as a residual heat storage portion, and the ventilation layer 2 having a wide gap corresponding to the thickness of the second spacers 23 on the back surface side of the glass panel 15.
The downstream side 21b of 1 is formed and becomes a high temperature accumulation part.

Moreover, the ventilation layer 21 is provided with the eaves air inlet / outlet 24 at the eaves side along the eaves side from the eaves side toward the ridge side by the first spacers 22 ... The upstream side 21a on the low side
And the downstream side 21b is formed in the vicinity of the ridge 25 side which is the high side.

A ridge duct 28 is arranged along the ridge 25 of the roof unit 12. The eaves duct 28 has a plurality of suction ports 28a ...
It is in communication with 1b.

The air warmed by passing through the low temperature heat collecting portion on the upstream side 21a and the high temperature heat collecting portion on the downstream side 21b of the aeration layer 21 is introduced through the plurality of suction ports 28a, and the heat utilizing means is used. 26 used.

The heat utilization means 26 has a handling box 27 which is disposed in the roof unit 12 and selects a heat utilization method.

As shown in FIGS. 3 and 4, the handling box 27 has a substantially box shape, and the roof unit 1
A suction opening 30 for introducing warmed air collected from a plurality of suction ports 28a of a ridge duct 28 arranged along the second ridge 25 into the handling box 27 through a heat collecting duct 29, A fan 31 for blowing warmed air to the inside of the unit building 10 or outdoors, a heat exchanger 32 for converting heat energy of the warmed air into heat energy of water which is another heat medium, and a warmed An exhaust unit 33 for discharging air to the outside, a blower duct 34 for blowing warmed air into the unit building 10, and the exhaust unit 33
The ventilation layer 21 is interposed between the switching damper 35 for switching between exhaust from the unit and blowing air into the unit building 10, the ventilation layer 21, and the ventilation duct 34 and the exhaust unit 33.
And a ventilation layer closing damper 36 and the like that prevent the inflow of air into the ventilation layer.

The fan 31 is mainly a blade-shaped fan blade 31a, a fan motor 31b for rotating the fan blade 31a forward and backward, and a fan motor 31b.
And a cooling pipe 31c through which air for cooling the air is aerated.

The fan 31 is located between the blower duct 34 and the heat collecting duct 29 communicating with the ventilation layer 21 by rotating the fan motor 31b in the reverse direction. It also serves as a snow melting fan that blows the air inside the unit building 10.

In the handling box 27 of this embodiment, an indoor return opening 37 is provided to ventilate the air inside the unit building 10, and the indoor return duct 37 is provided.
By connecting a, this indoor return duct 37
The indoor air intake 37b at the tip of a is configured so that the air in the room can be introduced into the handling box 27.

Of these, the heat exchanger 32 is detachably arranged in the handling box 27 and converts the heat energy of the warmed air into the heat energy of water which is a fluid flowing in the flow pipe 38. This distribution pipe 38
The warm water guided by the unit building side heat exchanger 39 is used to keep the hot water stored in the hot water storage tank 40 warm to assist the heating power of the boiler 41.

The hot water boiled in the boiler 41 is introduced into the unit building 10 by hot water supply pipes 41a, 41b and the like to supply hot water in a kitchen or a bathroom.

The blower duct 34 has a blower duct opening 3 formed on the lower surface of the handling box 27.
4a and extends substantially vertically to the first floor 10a in the unit building 10.

In this floor portion 10a, as shown in FIG. 3, warmed air once flows into the groove-shaped pits 10b under the floor plate, and while the thermal energy is stored in the surrounding heat storage concrete floor 10c, the floor plate is heated. Multiple outlets 1 formed in the
The floor heating and the floor warm air heating are performed by blowing out warm air from 0d.

The exhaust part 33 has an exhaust duct opening 33a formed on the side surface of the handling box 27.
An exhaust duct 33b extending to the outside is connected to the exhaust duct 33b, and unnecessary warm air is exhausted from an exhaust port 33c formed at the tip of the exhaust duct 33b.

The switching damper 35 is rotated about the support shaft 35a by a damper motor (not shown), and the exhaust duct opening 33a of the exhaust unit 33 is used when heat is used.
To blow the warmed air to the side of the blower duct 34, and also to close the blower duct opening 34a of the blower duct 34 when the heat is used in the summer or the like, thereby exhausting the exhaust duct 3
The air heated to 3b is blown, and the exhaust from the exhaust unit 33 and the blowing into the unit building 10 are switched.

The ventilation layer closing damper 36 is rotated about the support shaft 36a by a damper motor (not shown) to close the suction port 28a of the heat collecting duct 29 communicating with the ventilation layer 21. It is arranged between the blower duct 34 and the exhaust part 33 to block the inflow of air into the ventilation layer 21.

Further, the ventilation layer closing damper 36 closes the indoor return opening 37 at the time of collecting heat to prevent the heat energy of the warmed air from being dispersed due to the inflow of air from the inside of the room, so that the high heat energy state is achieved. It is configured to keep.

Next, the operation of this embodiment will be described.

Since the building roof 11 is composed of the roof unit 12 constituting the upper part of the unit building 10,
In advance, the solar cell panel 14 and the glass panel 15 at the factory
If the ventilation layer 21 and the like are incorporated into the roof unit 12, at the construction site, as shown in FIG. 5, the roof unit 12 is simply hung by a crane and placed on the top of the unit building 10. , The construction is completed.

For this reason, work at a high place as in the past is eliminated, and workability is good.

After the construction, as shown in FIG. 1, when the surface of the building roof 11 is irradiated with the sun rays S, the solar cell panel 14 is laid on the surface of the building roof 11 on the back side thereof. Since the upstream side 21a of the ventilation layer 21 through which the air for cooling the air is passed is formed, the solar cell panel 14
The temperature rise is suppressed and the energy conversion efficiency is maintained.

Therefore, the electricity generated by the solar cell panel 14 is, for example, cooled or heated in the unit building 10.
It can be used for lighting, communication, etc. Further, since the air warmed in the ventilation layer 21 is used for the hot water supply, the heating, etc. by the handling box 27 which is the heat utilization means 26, solar energy can be used without waste.

Further, since air is passed through the ventilation layer 21, there is almost no increase in weight, so that it is not necessary to make the structure of the lower unit building 10 strong, and it is possible to construct a relatively large-scale building. Not only that, it can also be installed in a small house together.

On the surface of the building roof 11, a glass panel 15 is laid adjacent to the solar cell panel 14, and an upstream side 21a of the ventilation layer 21 is formed on the back surface side of the solar cell panel 14. This glass panel 1
A downstream side 21b of the ventilation layer 21 is formed on the back surface side of No. 5.

Therefore, when the air having the same temperature as the outside air temperature is introduced from the air inlet / outlet 24 at the eaves side, the solar cell panel 14 is cooled in the ventilation layer 21 at the upstream side 21a which is a low temperature heat collecting portion. The warmed air is further heated on the downstream side 21b, which is a high-temperature heat collecting portion, by being irradiated with sunlight passing through the glass panel 15, and the heated air is used by the heat utilization means 26. Can be done. For this reason, even when the effective irradiation amount of the sun rays S is relatively small in winter etc., the air that cannot be sufficiently warmed only by cooling the solar cell panel 14 can be brought to a high temperature state, and solar energy is wasted. Available without.

The ventilation layer 21 extends along the slope of the building roof 11 on the lower side of the slope and on the upstream side 21a.
However, since the downstream side 21b is formed on the high side of the slope, the warmed air rises along the slope of the building roof 11 and irradiates sunlight that passes through the glass panel 15. Receives high temperature.

For example, when the suction port 28a is closed by the ventilation layer closing damper 36, the time for warming the air under the glass panel 15, which is the high temperature heat collecting portion, becomes long, and the high heat energy is further increased. Can be given to the air. Then, by rotating the ventilation layer closing damper 36 and opening the suction port 28a, air in a high thermal energy state can be sent into the handling box 27.

Therefore, it is possible to utilize the air having a large amount of heat energy by the heat utilization means 26 while improving the air circulation.

Since the heat utilization means 26 has the fan 31 for sending the warmed air to the inside of the unit building 10 or to the outside, the operation of the fan 31 efficiently brings it into the unit building 10. It can blow warmed air.

That is, the air warmed from the blower duct 34 to the first floor 10a in the unit building 10 is
As shown in FIG. 3, while flowing into the groove-shaped pits 10b under the floor plate to store heat energy in the surrounding heat storage concrete floor 10c, a plurality of outlets 10d formed on the floor plate ...
The heated air is blown out from the floor to perform floor heating and floor warm air heating. The warm air blown out from the outlet 10d is the air that warms the outside air in the aeration layer 21, so unlike the warm air obtained by burning kerosene, gas, etc., the carbon dioxide concentration is low, and moreover, carbon monoxide is generated. There is no danger. Therefore, a comfortable air conditioning environment can be obtained in the unit building 10.

When it is not necessary to use heat energy in the unit building 10, the solar cell panel 1 is placed outdoors.
The air warmed by the cooling of 4 can be blown and exhausted. Therefore, the energy conversion efficiency of the solar cell panel 14 can always be maintained.

Further, since the heat utilization means 26 has the heat exchanger 32 and the unit building side heat exchanger 39 for converting the heat energy of the warmed air into the heat energy of another heat medium, for example, If the water is warmed by the heat exchanger 32, it can be used for hot water supply, heating, heat storage, etc. in the unit building 10.

Further, the heat exchanger 32 converts the heat energy of the warmed air into the heat energy of the fluid flowing in the flow pipe 38, and is arranged in the roof unit 12 so that the flow pipe is Since it is guided into the unit building 10 by the 38 and the hot water supply pipes 41a, 41b, etc., the workability is good by incorporating the heat exchanger in the roof unit 12 in advance.

Moreover, the heated air is supplied to the roof unit 1
If the heat exchanger 32 in 2 converts the heat energy of a liquid such as water, the air in a high temperature state is immediately converted into a liquid with less heat diffusion to prevent the heat energy from diffusing, efficiently, It can be guided downward and introduced into the unit building 10.

At this time, since only air flows in the ventilation layer 21, there is no problem of weight increase, water leakage, rust, and the like.
Further, in this embodiment, since the handling box 27 having a predetermined weight is provided in the ridge 25 portion at the substantially center of the unit building 10, the load is dispersed and the load on the unit building 10 is reduced. Also in this respect, the durability is good.

The heat utilization means 26 has an exhaust part 33 for exhausting the warmed air to the outside and a ventilation duct 34 for blowing air into the unit building 10. The exhaust from the exhaust part 33 and the unit Since the switching damper 35 is provided for switching between blowing air into the building 10, switching the switching damper 35 allows, for example, the blowing duct 34 in winter.
Depending on the case, it is possible to use warm air to heat the inside of the unit building 10 and to exhaust the warm air from the exhaust portion 33 to the outside in the summer. Therefore, the energy conversion efficiency of the solar cell panel 14 can be maintained even in the summer when the heat energy is not required in the unit building 10.

Further, since the ventilation layer closing damper 36 is interposed between the ventilation layer 21 and the blower duct 34 and the exhaust portion 33, it prevents the inflow of air into the ventilation layer 21.
Moist air indoors or outdoors at night, etc.
Also, it is possible to prevent dew condensation from entering the ventilation layer 21 through the exhaust part 33.

Therefore, a short circuit or the like due to dew condensation on the back surface side of the solar cell panel 14 is prevented, and the durability is good.

Further, the fan 31 as a snow melting fan is
It is located between the ventilation duct 34 and the ventilation layer 21, and the air in the unit building 10 is blown into the ventilation layer 21. Therefore, even if snow is accumulated on the solar cell panel 14 or the glass panel 15. , Warm air in the room is blown from the air duct 34 through the handling box 27 to the ventilation layer 2
1 is blown into the solar cell panel 14 or the glass panel 1
5 can be heated to melt snow. For this reason,
Good durability.

Moreover, at this time, if warm water is passed through the flow pipe 38 in the heat exchanger 32, warm air in the room can be blown into the aeration layer 21 in a higher temperature state. . Therefore, the snow melting efficiency can be further improved.

Further, in this embodiment, since the indoor return opening 37 is provided, this indoor return opening 37 is provided.
By opening the opening and driving the fan 31, it is possible to ventilate the air in the room.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific structure is not limited to this embodiment, and the present invention can be applied even if the design is changed without departing from the gist of the present invention. include.

For example, in the above-mentioned embodiment, the unit building 10 is used as the building, but the present invention is not limited to this. For example, a conventional construction method, another prefabricated construction method, or the like can be used in any building. Also, it is sufficient that the ventilation layer 21 has a heat utilization means 26 that utilizes warmed air.

Further, in the above embodiment, the fan 31 is used both as a blower fan and a snow melting fan by being rotated in the forward and reverse directions. However, the present invention is not limited to this and, for example, may be provided individually. Of course.

Further, although the heat exchanger 32 is provided in the handling box 27, the present invention is not limited to this. For example, a handling box in which the heat exchanger 32 is not provided according to the need of the user. Of course, 27 may be used.

[0092]

As described above, according to the first aspect of the present invention, the solar cell panel is cooled on the back side of the solar cell panel laid on the surface of the building roof. Since a ventilation layer that allows the passage of air is formed,
The temperature rise of the solar cell panel is suppressed and the energy conversion efficiency is maintained. Therefore, the electricity generated by the solar cell panel can be used in, for example, cooling, heating, lighting, and communication in the building.

Further, since the air warmed in the ventilation layer is utilized by the heat utilization means, solar energy can be utilized without waste.

Further, since air is passed through the ventilation layer, there is almost no increase in weight. Therefore, it is not necessary to make the lower structure of the building strong, and it is not necessary for the building to be of a relatively large scale. Also, it has a practical useful effect that it can be installed together even in small houses.

[Brief description of drawings]

FIG. 1 is a cross-sectional view schematically showing the structure of a unit building, showing a solar energy utilizing roof of an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the roof using the solar energy of the same embodiment and explaining the structure of the roof unit.

FIG. 3 is a perspective view illustrating a solar energy utilizing roof of the same embodiment and illustrating a configuration inside a unit building.

FIG. 4 is a partial cross-sectional view illustrating a solar energy utilizing roof of the same embodiment and illustrating a configuration of a handling box.

FIG. 5 is a partial cross-sectional view illustrating a solar energy utilizing roof of the same embodiment and illustrating a state in which a roof unit is placed on a unit building.

FIG. 6 is a partial cross-sectional view showing a conventional solar energy utilizing roof.

[Explanation of symbols]

 10 unit building (building) 11 building roof 12 roof unit 14 solar cell panel 15 glass panel 21 ventilation layer 21a upstream side 21b downstream side 26 heat utilization means 27 handling box

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location E04D 13/00 J 13/18 F24F 3/00 B F24J 2/04 2/42 D H01L 31/042

Claims (1)

[Claims] 1. A solar cell panel is laid on the front surface of a building roof, and a ventilation layer for passing air for cooling the solar cell panel is formed on the back surface side of the solar cell panel.
A solar energy utilizing roof characterized in that it has a heat utilizing means for utilizing warmed air in the ventilation layer.