JPH0842081A - Combined roof structure - Google Patents

Abstract

PURPOSE:To effect solar photovoltaic power generation simultaneously with air heat collection utilizing solar heat. CONSTITUTION:In a roof structure wherein a solar battery unit 1 comprising solar batteries is combined with a heat collecting unit 2 including a fluid passage 21 of air, the heat collecting unit 2 is disposed nearer to a ridge than the battery unit 1 to form a fluid space 91 in communication with the rear side of the solar batteries and the passage 21 of air of the unit 2. A suction port 92 is provided in the space 91 on the side of eaves, while a duct 94 is provided on the side of the ridge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined roof structure for simultaneously performing solar power generation and air heat collection using solar heat.

[0002]

2. Description of the Related Art Conventionally, as roofs utilizing solar heat, solar cells are used to generate electricity, and ventilation passages and water pipes are provided to warm the air and water flowing inside to obtain hot air or hot water. Are known. Among the above, as a solar cell for generating power, there is a roof described in Japanese Utility Model Publication No. 63-21629. This roof has a structure in which a heat exchanger is provided in the air flow passage that extends from the eaves portion to the ridge through the back surface of the solar cell roof panel and suppresses heat generation of the solar cell by the air flowing through the air flow passage. It aims to utilize surplus thermal energy by maintaining power generation efficiency and collecting heat from the air flowing through the air flow passage.

[0003]

However, in the above-mentioned conventional roof, although the air flowing through the air flow passage is warmer than the outside air, it has a sufficient heat energy as compared with the heat collecting device only for collecting heat. Can't get

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above, and provides a combined roof structure of a solar cell portion including a solar cell and a heat collecting portion having an air flow path, and Is laid so that the section is located on the ridge side of the solar cell section, and a circulation space is formed in which the back surface of the solar cell and the air flow path of the heat collection section communicate with each other, and an intake port is provided on the eaves side of the circulation space. The present invention relates to a combined roof structure characterized in that a duct is provided on the side.

[0005]

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

The present invention proposes a combined roof structure of a solar cell section 1 comprising a solar cell 11 and a heat collecting section 2 having an air flow path 21, and in the illustrated embodiment, the solar cell section 1 is used. The solar panel is used, the heat collecting section 2 is used as a heat collecting panel, and these two types of roof panels (solar cell panel 1,
It was supposed to be constructed using the heat collecting panel 2).

The solar cell panel 1 is provided with a solar cell 11 which is a solar energy collector, support members 3 and 3 are attached to the left and right side edges of the solar cell 11, and a ridge-side connecting member 4 is attached to the ridge edge. The eaves side connecting member 5 is attached to the edge of the eaves, and further the gutter-shaped drainage plate 6 is integrally provided on the back side and fixed to the base surface by the attaching member 7.

Support member 3 in the solar cell panel 1
Is a member that is disposed inside the drainage plate 6 and supports the left and right side edges of the solar cell 11, and the vertical portion 31 along the inner side of the side surface portion 62 of the drainage plate 6 and the inside of the vertical portion 31. The vertical portion 31 and the extending portion 3 are formed of a substantially L-shaped extending portion 32 extending in
A waterproof space 33 that opens upward is formed between the two. The extending portion 32 is provided with a supporting portion 321 which is a lateral concave portion.
The holding elastic member 12 mounted on the side edge of the is received and supported. Further, the upper lateral piece of the supporting portion 321 serves as a receiving portion that receives the cover member 8 arranged at the lateral connection interval between the panels. On the other hand, a locked piece 311 protruding inward is provided in the middle of the vertical portion 31, and the cover member 8 can be attached in a fitting shape. Further, in the illustrated embodiment, an output cable (not shown) of the solar cell 11 is provided in a part of the vertical portion 31.
A hole 312 through which the screw can be taken out and a through hole for the screw 721 are opened.

The ridge-side connecting member 4 is the solar cell 1
1 is a member that supports the ridge edge, and is provided with a ridge edge insertion portion 41 that is a recess that is open on the eaves side, and the retaining elastic member 12 that is inserted and attached to the ridge edge of the solar cell 11 by the ridge edge insertion portion 41. It is configured to receive and support. Furthermore, the ridge end insertion part 4
An engaged portion 42, which is a thick horizontal piece toward the ridge, is provided on the back surface side of 1. Further, below the ridge end insertion portion 41 and the engaged portion 42, a substantially triangular ridge side frame portion 43 toward the eaves side and a ridge side horizontal piece 44 toward the ridge side are extended, The engaging portion 42 and the ridge-side lateral piece 44 have a constant spacing 45.
Facing each other.

Further, the eaves-side connecting member 5 is a member for supporting the eaves edge of the solar cell 11, and is provided with an eaves-end insertion portion 51 which is a recess opened on the ridge side. The holding elastic member 12 inserted into the eave edge is received and supported. In addition, the eaves edge insertion portion 5
An engaging portion 52, which is a thick horizontal piece facing the eaves, is provided on the back surface side of 1. Further, below the eaves end insertion portion 51, a substantially triangular eaves side frame portion 53 extending toward the ridge is extended, and a lower eaves side piece 54 and an eaves side piece 55 are provided on the lower surface of the engagement portion 52. It is extended in a substantially T-shape.

The drainage plate 6 is a gutter material longer than the solar cell 11 and has side surfaces 62, 62 having left and right side edges of a substantially flat bottom surface 61 raised. Further, the side surface portion 62 is provided with an inclined portion 63 whose upper portion is inclined outward and a water return portion 64 whose tip is bent inward. The side surface portion 62
The holes 31 provided in the vertical portion 31 of the support member 3 are provided at appropriate positions of
A hole communicating with 2 was provided.

The mounting member 7 is a short material having a substantially L-shaped cross section, and is composed of a substantially horizontal piece fixed to the base surface 71 and a substantially vertical vertical portion 72. The fixing portion 71 is provided with a mounting hole 711 for a fixing tool (not shown) driven into the base surface. Further, the vertical portion 72 is provided with a through hole for the screw 721.

In order to fabricate the solar cell panel 1 by integrating the members having the above construction, the supporting members 3, 3 and the ridge-side connecting member 4 are provided on the left and right side edges, the ridge edge, and the eave edge of the solar cell 11. The eaves side connection member 5 is attached, and the drainage plate 6 is arranged so that the inner surface of the side surface portion 62 is along the outer surface of the vertical portion 31 of the support member 3. At that time, an inclined portion 313 in which the upper portion of the vertical portion 31 of the support member 3 is inclined outward is fitted between the inclined portion 63 and the water return portion 64 of the drainage plate 6. In addition, the solar cell 11
Since the eaves edge and the eaves edge of the drainage plate 6 are arranged so as to coincide with each other, the overlapping portion 65 where the solar cell 11 is not mounted is formed on the ridge side of the long drainage plate 6. After that, the vertical portion 72 of the mounting member 7 is aligned with the outer surface of the side surface portion 62 of the drainage plate 6, whereby the vertical portion 72 of the mounting member 7 and the side surface portion 6 of the drainage plate 6 are arranged.
2 and the vertical portion 31 of the support member 3 along the overlap, and the vertical portion 72 of the mounting member 7 and the vertical portion 31 of the support member 3
The through holes provided in the above are aligned with each other via the side surface portion 62 of the drainage plate 6 and integrated with the screw 721. The solar cell panel 1 thus integrated can be fixed to the base surface by driving a fixing tool (not shown) through the mounting hole 711 provided in the fixing portion 71 of the mounting member 7.

The output cable of the solar cell 11 is provided in the hole 312 provided in the vertical portion 31 of the support member 3 in the solar cell panel 1 and the hole provided in the side surface portion 62 of the drainage plate 6 communicating with the hole 312. A guide member 13 for facilitating removal of the guide member (not shown) is attached.
Is a structure in which the vertical surface portion 131 and the substantially pocket-shaped pocket portion 132 in which the inner surface is removed are integrated.

A cover member 8 is attached to the solar cell panel 1 at a lateral connection interval. The cover member 8 has a substantially planar adhered portion 81, a fitting portion 82 whose left and right side edges are bent downward, and a substantially horizontal outward extension from the upper end of the fitting portion 82. This is a configuration including the mounting portion 83. At the lower end of the fitting portion 82, a substantially V-shaped extension piece 82 is provided.
1 and a locking piece 822 protruding inward are provided.
When the cover member 8 is faced between the adjacent solar cell panels 1 and 1 and pressed from above, the mounting portions 83 and 83 are received by the upper lateral piece of the support portion 321 of the support member 3 and the fitting portion is provided. 82 penetrates into the waterproof space 33 and the locking piece 82
2 elastically engages with the engaged piece 311.

Further, the connection of the solar cell panel 1 toward the eaves is made by overlapping the eaves edge of the drainage plate 6 of the solar cell panel 1 arranged on the side of the ridge with the drainage plate 6 of the solar panel 1 already fixed. 65 on the ridge side and engage with the engaged portion 42 of the ridge side connecting member 4 of the solar cell panel 1 to which the engaging portion 52 of the eaves side connecting member 5 of the solar cell panel 1 arranged on the ridge side has already been fixed. It may be arranged. In the illustrated embodiment, both the horizontal piece-like engaging portion 52 and the engaged portion 42 are in an engaged state in which they are elastically pressed against each other from above and below, but this connection is not limited to the above. Alternatively, any connecting means such as polymerization, hooking, elastic engagement, etc. may be used.

In the solar cell panel 1 having the above structure, even when rainwater enters the waterproof space 33 through the gap between the support member 3 and the cover member 8, the waterproof space 33 is located inside the drain plate 6. Therefore, rainwater can be prevented from entering the indoor side beyond the side surface portion 62, the inclined portion 63, and the water return portion 64 of the drainage plate 6, and the rain finish of the panel becomes reliable. Further, even if rainwater enters the rear side from the connection part in the direction of the eaves, the drainage plates 6 and 6 are connected by the overlapping portion 65 to receive the rainwater, so that the rainwater can be reliably discharged to the eaves. . Moreover, since the drainage plate 6 is integrally fixed to the solar cell panel 1 and also has the fixing portion 71 to the base surface, the number of members to be brought to the site for construction is extremely small. . Further, the output cable of the solar cell 11 is taken out from the space 14 on the back side thereof through the hole 312 (guide member 13), and the output cables are connected to each other or to a connecting cable (not shown) arranged in the eaves direction. Wiring such as connection can be appropriately performed. Alternatively, it is possible to remove the cover member 8 even after the construction, and quickly and easily deal with the cause of the defect such as the wiring defect. Therefore, the side surface of the solar cell panel 1, that is, the space formed by the side surface portion 62 of the drainage plate 6 and the back surface of the cover member 8 can be a wiring space for accommodating the output cable of the solar cell 11 and the like.

On the other hand, the heat collecting panel 2 has a structure including an air flow path 21, but the structure other than the main part is the same as that of the solar cell panel 1. That is, a transparent plate 22 such as tempered glass is provided in place of the solar cell 11, and the transparent plate 22
The supporting members 3 and 3 are attached to the left and right side edges of the ridge, the ridge-side connecting member 4 is attached to the ridge edge, and the eave-side connecting member 5 is attached to the eave edge. And is fixed to the base surface by the mounting member 7. Therefore, the heat collector panel 2 may be connected in the horizontal direction by using the cover member 8 similarly to the solar cell panel 1, and the connection in the eaves direction may be performed in the same manner as described above. The translucent plate 22 may have a multi-layer structure that prevents heat dissipation. Further, in the figure, reference numeral 23 is a holding elastic member mounted on the side peripheral edge of the light transmitting plate 22.

A heat collector 24 is disposed in the air flow path 21 formed on the back surface side of the transparent plate 22 of the heat collecting panel 2.
Due to the heat collector 24, the air flow passage 21 becomes an upper flow passage 211,
It is divided into lower channels 212. The heat collector 24 may be a corrugated plate made of metal or the like, a metal wool material having fine voids through which air can flow, or a multilayer structure having two or more layers. good. Further, the air flow path 21 is a heat collecting space, and a water pipe (not shown) may be provided together with the heat collecting body 24. The heat collector 24 of the illustrated embodiment is made of a fibrous or ribbon-shaped metal material,
It is a metal wool material formed into a wool shape having a density having at least fine voids through which air can flow in the thickness direction and formed into a mat shape as shown in FIG. As the metal wool material, waste material such as cutting scraps produced by metal processing may be used. In this case, it is possible to contribute to the reuse of resources and to reduce the cost of members at low cost. . Further, the surface of the metal wool material may be treated with zirconium carbide, chromium oxide, or the like, and may be subjected to a selective absorption film treatment for efficiently obtaining sunlight. Also, FIG.
Like the heat collector 24B shown in FIG. 6, a breathable holding plate 241 such as a wire mesh or punching metal is provided on the upper surface and the lower surface of the heat collector (metal wool material) 24 shown in FIG. The handling of (24) may be suppressed to improve the handleability.

By connecting the heat collecting panel 2 in the eaves direction, the air passage 21 on the back surface of the translucent plate 22 communicates in the eaves direction, but as shown in FIG. In FIG. 21, the heat collectors 24 are arranged so as to separate an appropriate interval (air inflow portion 213). A guide plate 25 having one end in contact with the translucent plate 22 and the other end located in the lower flow path 21B is disposed in the air inflow portion 213. The guide plate 25 is configured to extend downward from one end fixed to the translucent plate 22 toward the ridge side, and is further bent along the lower surface of the heat collector 24. The guide plate 25 is provided with the air inlet 213 as described above.
, The warm air in the upper flow path 211 is guided to the lower flow path 212 as shown by the arrow, so that the temperature of the air in the air flow path 21 is made uniform and the temperature gradient with the heat collector 24 is increased. Is increased, and heat exchange efficiency is improved. In addition, the upper channel 21
Since the warm air of No. 1 becomes low, it is possible to suppress the heat release due to the temperature difference with the outside air at the contact portion of the translucent plate 22, and the air circulation speed becomes high in the lower flow path 212, so that the heat utilization efficiency is high. Will also be expensive.

The combined roof structure of the present invention is constructed by using the solar cell panel 1 and the heat collecting panel 2 having the above-mentioned structure. As shown in FIG. It is located on the ridge side. In the illustrated embodiment, styrene, a resin foam material such as urethane foam,
The solar cell panel 1 and the heat collecting panel 2 were laid on a base surface formed by laying a heat insulating material 90 such as a glass wool board and a wood wool cement board. The connection between the solar cell panel 1 and the heat collecting panel 2 in the eaves direction is the same as the connection between the solar cell panels 1 and thus the description thereof is omitted. The space 14 and the air flow path 21 of the heat collection panel 2 communicate with each other to form a circulation space 91. Further, an intake port 92 is provided on the eaves side of the distribution space 91, and a ridge structure body 94 having a duct 93 is provided on the ridge side.

In the combined roof structure of the present invention constructed as described above, the heat collecting panel 2 and the solar cell panel 1 are laid in the direction of the eaves, and the continuous distribution space 9 is provided through both panels.
1 is formed, the intake space 92 from the eaves side to the distribution space 9
The outside air taken in 1 is the solar cell 11 of the solar cell panel 1.
The temperature rise of the solar cell 11 is prevented by being flown to the back surface, and the power generation efficiency is not reduced. Further, since the air that has absorbed the residual heat of the solar cell 11 is subsequently made to flow into the heat collecting space (air passage 21) of the heat collecting panel 2, sufficient heat can be obtained. Further, the heat collecting space (air passage 21)
Since the heat collector 24 is provided in the heat collecting unit, the heat collecting efficiency is further enhanced. Further, since the adhered portion 81 of the cover member 8 of the illustrated embodiment is substantially flush with the solar cell 11 and the transparent plate 22, a shadow may be formed on the surface of the solar cell 11 and the transparent plate 22. Without this, power generation and heat collection can be performed efficiently.

In the embodiment shown in FIG. 10, the heat collecting panel 2 on the ridge side is steep, whereas in the embodiment shown in FIG. 11, the solar cell panel 1 on the eaves side is steep. These modes may be appropriately selected depending on whether heat collection or power generation is emphasized. For example, power generation by using air-conditioning equipment is emphasized in the summer, and heat demand is small. On the other hand, in winter, the demand for electric power is not small due to the use of heating equipment, etc., but the heat collection that can be used for heating is emphasized. Therefore, for example, in order to improve the heat collection efficiency in the winter when the altitude of the sun is low, the heat collection panel 2 on the ridge side should have a steep slope as in the embodiment shown in FIG. 10, and an angle larger than the optimal mounting inclination angle of the annual average. Is preferred. In addition, in the example of Tokyo, the annual average optimum tilt angle is about 33 °.
It is 57 ° in the winter season from December to February.

The present invention has been described above based on the embodiments of the drawings, but the present invention is not limited to the above embodiments, and can be carried out in any manner as long as the configuration described in the claims is not changed. be able to.

[0025]

In summary, according to the combined roof structure of the present invention, the outside air taken in from the eave-side intake port is allowed to flow to the back surface of the solar cell of the solar cell section to prevent the temperature rise of the solar cell and efficiently generate power. it can. Further, since the air that has absorbed the residual heat of the solar cell is subsequently made to flow through the air flow path of the heat collecting portion, sufficient heat can be obtained.

If a heat collecting body is arranged in the air flow passage of the heat collecting section, the heat collecting efficiency can be further improved.

Furthermore, if at least a part of the solar cell section and the heat collecting section have different gradients, it is sufficient to make the solar cell section or the heat collecting section an angle larger than the average optimum inclination angle, if necessary. It can generate electricity or collect heat. In particular, when the heat demand is high, such as in winter, sufficient power generation and heat collection can be performed by using the solar cell unit and the heat collecting unit that match the solar altitude.

[Brief description of drawings]

FIG. 1 is a plan view showing a solar cell panel that is an example of a solar cell unit.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a side sectional view showing a connection portion of the solar cell panel of FIG. 1 in the direction of the eaves.

FIG. 4 is a plan view showing a heat collecting panel which is an example of a heat collecting unit.

5 is a cross-sectional view taken along the line BB of FIG.

6 is a perspective view showing a heat collecting body used in the heat collecting panel of FIG. 4. FIG.

FIG. 7 is a perspective view showing another embodiment of the heat collector.

8 is a side sectional view showing a configuration of a heat collection space (air flow path) in the direction of the eaves of the heat collection panel of FIG.

FIG. 9 is a side sectional view showing an embodiment of the combined roof structure of the present invention.

FIG. 10 is a side sectional view showing another embodiment of the combined roof structure of the present invention.

FIG. 11 is a side sectional view showing another embodiment of the combined roof structure of the present invention.

[Description of Reference Signs] 1 solar cell part (solar cell panel) 11 solar cell 13 guide member 2 heat collecting part (heat collecting panel) 21 air flow path (heat collecting space) 22 translucent plate 24 heat collecting body 3 support member 31 Vertical part 32 Extended part 33 Waterproof space 4 Building side connection member 41 Building edge insertion part 42 Engaged part 5 Eaves side connection member 51 Eaves end insertion part 52 Engagement part 6 Drain plate 61 Bottom surface part 62 Side part 7 Mounting member 8 Cover member 91 Distribution space 92 Intake port 94 Duct

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display area F24F 3/00 B H01L 31/042 31/04

Claims (3)

[Claims] 1. A combined roof structure comprising a solar cell section made up of solar cells and a heat collecting section having an air flow path, wherein the heat collecting section is laid so as to be located on the ridge side of the solar cell section. A combined roof structure, characterized in that a distribution space is formed in which the back surface of the battery and the air flow path of the heat collecting part communicate with each other, and an intake port is provided on the eaves side of the distribution space and a duct is provided on the ridge side. 2. The combined roof structure according to claim 1, wherein a heat collecting body is arranged in an air passage of the heat collecting portion. 3. The combined roof structure according to claim 1, wherein the solar cell portion and the heat collecting portion have different slopes at least partially.