JP2019167706A - Roof structure - Google Patents

Abstract

To provide a roof structure capable of suppressing a roof surface from being fired due to a spark generated from a cable of a solar cell module installed on the roof.SOLUTION: In a roof structure in which a roof material 1 with a solar cell module is arranged on a roof surface 2, a receiving surface part receiving the cable 16 of the solar cell module is provided on a lower side of the roof material 1 through a space with respect to the roof surface 2. The cable 16 is received by a receiving member 3, and the upper surface of the receiving member 3 serves as the receiving surface part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a roof structure in which a roof material with a solar cell module is arranged on a roof surface.

  In Patent Document 1, a long rectangle is formed in the purlin direction, one joining edge is formed on the ridge side edge, the other joining edge is formed on the eave side edge, and the joining edge is also formed on both ends in the purlin direction. The roof body, which is composed of a formed roof body and a heat insulating material provided on the back side of the roof body, is mounted on the roof base plate and joined to another adjacent roof material and fixed and installed. A roof structure in which a solar cell module is integrally attached to the front side surface is disclosed. And in this structure, the output cable with a connector exists in the state which floated from the roof surface, and it has the structure where the attachment metal fitting of a solar cell module is located under the said output cable.

JP 2005-36604 A

  However, the structure is not configured to receive the output cable, and the output cable may fall on the mounting hardware or may fall on the field board. And, as described above, in a state where the output cable has fallen on the field board, sparks are generated due to damage of the output cable covering, poor connector connection, etc. There is a risk of fire from this field plate. Even if the output cable falls on the mounting bracket, if a spark is generated from the output cable, the heat is transmitted to the mounting base plate directly below the mounting bracket, and from the base plate. There is a risk of fire.

  The present invention provides a roof structure capable of suppressing fire from the roof due to the occurrence of a spark from a cable of a solar cell module installed on the roof.

  In order to solve the above problems, the roof structure of the present invention is a roof structure in which a roof material with a solar cell module is arranged on the roof surface. It exists in the space | interval or fireproof material between the said roof surfaces on the lower side of this.

  If it is said structure, the direct contact with the said cable and a roof surface will be prevented by the receiving surface part which receives the cable of the said solar cell module. Accordingly, it is possible to suppress the spark generated from the cable from reaching the roof surface, and to suppress the fire from the roof surface. Moreover, since the said receiving surface part exists via the space or a fireproof material between the said roof surfaces in the downward side of the said roof material, the fire when the said receiving surface part is heated by the said spark can also be suppressed. .

  The receiving surface portion may comprise a surface portion of a receiving member that receives the cable.

  The receiving member may have an accommodating recess for accommodating the cable. According to this, the arrangement | positioning operation | work of the said cable can be facilitated.

  The receiving member may be made of metal. According to this, the receiving member which consists of a steel plate or another metal plate is employ | adopted, for example, The production cost of this receiving member can be reduced, and installation work can be facilitated.

  The receiving member may be fixed to a cross rail on the roof surface. According to this, the height of the said horizontal rail can be utilized and it becomes easy to interpose a space or a fireproof material under the said receiving member.

  A roof material provided integrally with the receiving member may be fixed to the cross rail. According to this, the number of parts can be reduced and the construction cost can be reduced.

  The receiving member may have a leg portion, and the leg portion may be fixed to the roof surface. According to this, a space or a fireproof material can be interposed under the receiving member without using a horizontal rail or the like.

  The upper surface portion of the fireproof material may form the receiving surface portion. According to this, the structure which provides the said receiving surface part on the said roof surface without the said receiving member will be obtained.

  A disconnection preventing means for preventing the cable from disconnecting from the receiving surface portion may be provided.

  According to the present invention, the effect of suppressing fire from the roof surface even in the case where a spark occurs due to damage to the cable covering of the solar cell module installed on the roof or poor connection of the connector, etc. Play.

It is explanatory drawing which showed the outline of the cross section of the roof structure of embodiment of this invention. It is explanatory drawing which showed the outline of the wiring of the roof material with a solar cell module used with the roof structure of FIG. It is explanatory drawing which expanded and showed the outline of the cross section of the receiving member and wiring used with the roof structure of FIG. It is the perspective view which expanded and showed the receiving member of FIG. It is a figure which shows other embodiment, Comprising: It is explanatory drawing which expanded and showed the outline of the cross section of a receiving member and wiring. It is a figure which shows other embodiment, Comprising: It is explanatory drawing which expanded and showed the outline of the cross section of a receiving member and wiring. It is a figure which shows other embodiment, Comprising: It is explanatory drawing which expanded and showed the outline of the cross section of a receiving member and wiring. It is a figure which shows other embodiment, Comprising: It is explanatory drawing which expanded and showed the outline of the cross section of a receiving member and wiring. It is explanatory drawing which showed the outline of the cross section of the roof structure of other embodiment. It is the perspective view which expanded and showed the receiving member of FIG. It is explanatory drawing which showed the outline of the cross section of the roof structure of other embodiment. It is the top view and side view which expanded and showed the receiving member of FIG.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the roof material 1 with the solar cell module used in the roof structure of this embodiment has a structure in which the peripheral edge of the solar cell panel unit 14 is surrounded by a frame 11 as an example. Yes. The solar cell panel unit 14 includes a glass plate unit sandwiching the photovoltaic layer, a wiring unit for taking out the electric power generated in the photovoltaic layer, and the like.

  In addition, the mounting bracket 12 is engaged with the water-side back surface portion of the roof material 1. The mounting bracket 12 is formed with a protruding fixing portion that protrudes on the water side. The protruding fixing portion is fixed to the horizontal beam 21 by a screw 26 screwed from above on a horizontal beam (tile frame) 21 fixed on the roof surface 2. In the laying operation of the roof material 1, the mounting bracket 12 can be fixed to the horizontal rail 21 with screws 26 in advance. In this embodiment, the roof surface 2 has a structure in which an asphalt roofing 23 is pasted on a field plate 22.

  Moreover, the terminal part 15 which takes out the electric power which the said solar cell panel part 14 produced | generated is provided in the back surface of the roof material 1 with the said solar cell module. And from this terminal part 15, the cable 16 which outputs the said electric power is pulled out, and the connector 16a for making easy joining with another cable is attached to the edge part of each cable 16. FIG.

  A metal receiving member 3 that receives the cable 16 is attached to the upper surface side of the horizontal rail 21. The lateral length of the receiving member 3 is shorter than the lateral length of the roof material 1 with the solar cell module, and the cable 16 is interposed between the upper and lower stages at the side of the roof material 1 with the solar cell module. Can be extended vertically. In addition, the receiving member 3 has a fixing plate portion 31 that protrudes below the water, and is fixed to the upper surface of the horizontal rail 21 that is substantially parallel to the roof surface 2. This fixing may be performed with the screw 26 or with another screw. The fixing plate portion 31 is formed with a hole portion through which the screw (26) is inserted.

  Further, as shown in FIGS. 3 and 4, the receiving member 3 has an accommodation recess 32 that forms a long groove in the direction of slew on the water side of the fixed plate portion 31. The bottom surface of the housing recess 32 is formed substantially parallel to the fixed plate portion 31, and the bottom surface is connected to the roof surface 2 in a state where the fixed plate portion 31 is fixed to the upper surface of the horizontal rail 21. It is located substantially parallel. Further, a hemming bent portion 32 a is provided at the upper end of the water side wall portion of the housing recess 32. The hemming bent portion 32a improves the strength of the receiving member 3 and prevents the cable 16 from being damaged.

  In this embodiment, the receiving member 3 is formed by bending a steel plate. The thickness of the steel plate is, for example, approximately the same as the thickness of the mounting bracket 12. The upper side surface of the bottom of the receiving recess 32 functions as a receiving portion that contacts the cable 16 and receives it. And the bottom part of the said accommodation recessed part 32 is spaced apart from the said roof surface 2 between the said roof material 1 and the said roof surface 2, and forms the space between the said roof surfaces 2 and exists.

  If it is said structure, the direct contact with the said cable 16 and the roof surface 2 will be prevented by the said receiving member 3 which has the receiving surface part which receives the cable 16 of the said solar cell module. Therefore, it is possible to suppress the spark generated from the cable 16 from reaching the roof surface 2 and to suppress the fire from the roof surface 2. Moreover, since the said receiving surface part exists through the space between the said roof surface 2 in the downward side of the said roof material 2, the fire by the receiving surface part of the said receiving member 3 being heated by the said spark is also suppressed. it can.

  Further, when the receiving member 3 has the accommodating recess 32 for accommodating the cable 16, the installation work of the cable 16 can be facilitated.

  If the receiving member 3 is made of metal, it is easy to process. Therefore, the manufacturing cost of the receiving member 3 can be reduced and the installation work can be facilitated.

  Further, when the receiving member 3 is fixed to the horizontal rail 21 on the roof surface 2, a space can be interposed under the receiving member 3 by using the height of the horizontal rail 21. It becomes easy.

  Note that the receiving member 3 may be a simple flat plate-shaped portion having no receiving recess. Further, the flat plate-shaped portion may be parallel to the roof surface 2 or may be positioned horizontally. Further, a hole is formed in the upper side of the water-side wall portion of the flat plate-shaped portion or the accommodating recess 32, and a binding band passing through the tip side of the hole is applied to the cable 16 so that the tip side of the binding band. May be prevented from falling off by passing the cable through the lock portion of the binding band. That is, it is possible to form a detachment preventing means for restraining the cable 16 so as to be fastened to the receiving surface side by the binding band. Of course, you may restrain the said cable 16 to the said accommodation recessed part 32 or the said flat plate shape part, without using the said binding band. The cable 16 can be prevented from coming out of the housing recess 32 by partially covering the upper opening of the housing recess 32 with the binding band or the like. By combining with a binding band or the like, it is possible to form a detachment prevention means that surrounds the cable 16 so as to be fastened to the receiving surface side.

  In the above example, a space is interposed below the receiving member 3, but a fireproof material may be interposed in place of the space. Here, this fireproof material includes a non-combustible material, a semi-incombustible material, and a flame retardant material. Preferably, an incombustible material such as rock wool having higher heat insulation than metal is used as the fireproof material.

  Next, another embodiment will be described based on FIG. In this embodiment, the receiving member 3A is formed integrally with the mounting bracket 12, and the portion of the mounting bracket 12 that protrudes above the water functions as the fixing plate portion 31 of the receiving member 3A. The receiving member 3 </ b> A is fixed to the roof surface 2 by fixing the fixing plate portion 31 to the horizontal rail 21 with screws 26. As described above, when the receiving member 3A is provided integrally with the roofing material 1, the number of parts can be reduced and the construction cost can be reduced. The receiving member 3A may be a simple flat plate-shaped portion having no receiving recess, and the cable 16 may be bound to the flat plate-shaped portion with a binding band. Moreover, you may form the hole for letting the said binding band etc. pass in the said flat plate shape part. Of course, the receiving member 3 can also have a flat plate shape.

  Next, another embodiment will be described based on FIG. In this embodiment, the receiving member 3B is used. The receiving member 3 </ b> B is formed long in the direction of the line, has an accommodation recess 32 for accommodating the cable 16, and has leg portions 33 on the water side and water side thereof. An attachment piece portion is formed on the lower end side of each leg portion 33, and the receiving member 3 </ b> B is fixed to the roof surface 2 by a screw 27 screwed into the attachment piece portion. A space is formed between the leg portion 33 and the roof surface 2 below the housing recess 32. According to this, even if the horizontal rail 21 is not used, the space or the fireproof material can be interposed under the receiving member 3B.

  In the receiving member 3B, the housing recess 32 and the leg 33 are formed by bending one steel plate, thereby reducing the cost. Even when the receiving member 3B is used, the cable 16 may be prevented from falling off by using the binding band. Further, instead of the binding band, an adhesive tape or the like may be attached to the receiving member 3B so as to straddle the housing recess 32 above the cable 16. The adhesive tape or the like also forms a separation preventing means for restraining the cable 16 so as to be fastened to the receiving surface portion side.

  Next, another embodiment will be described based on FIG. In this embodiment, the receiving member 3C is used. The receiving member 3C is formed long in the direction of the spar and has a housing recess 32 for housing the cable 16, and a cover piece portion 34 for narrowing the upper opening of the housing recess 32. It has a configuration that does not require a band. The covering piece portion 34 also forms a detachment preventing means for surrounding the cable 16 so as to be fastened to the receiving surface portion side. Further, in this receiving member 3C, the housing recess 32 and the cover piece 34 are formed by bending one steel plate, thereby reducing the cost. Further, a fireproof material 4 that is long in the direction of the beam is interposed between the receiving member 3 </ b> C and the roof surface 2. Here, the fireproof material 4 includes a non-combustible material, a semi-incombustible material, and a flame retardant material. For example, as the fireproof material 4, a nonflammable material such as a hard rock wool plate, glass wool plate, cement plate or the like that has higher heat insulation than metal can be used. Screw insertion holes are formed at predetermined intervals in the bottom plate portion of the housing recess 32, and the receiving member 3C and the fireproof material 4 are screwed into the roof surface 2 by screwing the screws 28 passed through the screw insertion holes. Is fixed on the roof surface 2.

  Next, another embodiment will be described based on FIG. In this embodiment, the receiving surface part which receives the cable 16 of a solar cell module is formed by the fireproof material 4 formed long in the above-mentioned direction of the row. That is, the upper side surface portion of the fireproof material 4 forms the receiving surface portion. According to this, the structure which provides the said receiving surface part on the said roof surface 2 through the said fireproof material 4 intervening is obtained easily. The cable 16 can be fastened to the fireproof material 4 using a binding band or the like. The binding band or the like also forms separation preventing means for restraining the cable 16 so as to be fastened to the receiving surface portion side. The fireproof material 4 can be fixed to the roof surface 2 using the screws 28. The fireproof material 4 can be a hard rock wool board, glass wool board, cement board or the like having a higher heat insulating property than metal as in the above embodiment.

  Next, another embodiment will be described based on FIGS. 9 and 10. In this embodiment, it is a roof structure related to the roof material 1A with a solar cell module disposed on the eaves side of the roof surface 2. The installation fixing portion 17 that locks the roof material 1 </ b> A is placed on a substantially horizontal upper surface of a horizontal beam (Hiro Komai) 21 </ b> A arranged on the roof surface 2, and is fixed to the horizontal beam 21 </ b> A by a screw 29. The installation fixing portion 17 is formed with a through hole through which the screw 29 is inserted. And the receiving member 3D which receives the said cable 16 is attached to the upper surface side of the said horizontal crosspiece 21A. This receiving member 3 </ b> D has a fixed plate portion 31 </ b> A that protrudes below the water, and is fixed to the substantially horizontal upper surface of the horizontal rail 21 that is not parallel to the inclination of the roof surface 2. This fixing may be performed with the screw 29 or another screw. The fixing plate 31A is formed with a hole through which the screw (29) is inserted. The bottom surface of the receiving recess 32 of the receiving member 3D is formed non-parallel to the fixed plate portion 31A, and the bottom surface is in a state where the fixed plate portion 31A is fixed to the upper surface of the horizontal rail 21. It is located substantially parallel to the roof surface 2.

  Further, a hemming bent portion 32 a is provided at the upper end of the water side wall of the housing recess 32. And the bottom part of the said accommodation recessed part 32 is spaced apart from the said roof surface 2 between the said roof material 1 and the said roof surface 2, and is located in the said roof surface 2 through the space.

  Next, another embodiment will be described based on FIG. 11 and FIG. In this embodiment, the receiving member 3E is used. This receiving member 3E is formed as a piece member that is long in the direction of spar, and has a cover piece portion 34 that narrows the upper side opening of the housing recess 32 for housing the cable 16, and without the need for a binding band in particular, The cable 16 is prevented from being detached from the receiving surface portion. In addition, the receiving member 3E is provided with leg portions 33A on both ends in the direction of the column. An attachment piece portion is formed on the lower end side of each leg portion 33A, and the receiving member 3E is fixed to the roof surface 2 by a screw (not shown) screwed into the attachment piece portion. A space is formed below the accommodation recess 32 by the leg portion 33A. In the receiving member 3E, the housing recess 32, the cover piece 34, the attachment piece portion, and the leg portion 33A are formed by cutting and bending one steel sheet.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

1: Roof material with solar cell module 1A: Roof material 2: Roof surface 3: Receiving member 3A: Receiving member 3B: Receiving member 3C: Receiving member 3D: Receiving member 3E: Receiving member 4: Fireproof material 11: Frame 12 : Mounting bracket 14: Solar cell panel portion 15: Terminal portion 16: Cable 16a: Connector 17: Installation fixing portion 21: Horizontal rail 21A: Horizontal rail 22: Field plate 23: Asphalt roofing 26: Screw 27: Screw 28: Screw 29 : Screw 31: Fixed plate portion 31A: Fixed plate portion 32: Housing recess 32a: Hemming bent portion 33: Leg portion 33A: Leg portion 34: Cover piece portion

Claims (9)

  In the roof structure in which the roof material with the solar cell module is disposed on the roof surface, the receiving surface portion that receives the cable of the solar cell module is a space or a fireproof material between the roof surface and the lower side of the roof material. A roof structure characterized by existing through.   The roof structure according to claim 1, wherein the receiving surface portion is a surface portion of a receiving member that receives the cable.   The roof structure according to claim 2, wherein the receiving member has an accommodating recess for accommodating the cable.   The roof structure according to claim 2 or 3, wherein the receiving member is made of metal.   The roof structure according to any one of claims 2 to 4, wherein the receiving member is fixed to a cross rail on the roof surface.   The roof structure according to any one of claims 2 to 5, wherein the receiving member is provided integrally with a roof material.   The roof structure according to any one of claims 2 to 4, wherein the receiving member has a leg portion, and the leg portion is fixed to the roof surface. .   The roof structure according to claim 1, wherein an upper surface portion of the fireproof material forms the receiving surface portion.   The roof structure according to any one of claims 1 to 8, further comprising a detachment preventing means for preventing the cable from detaching from the receiving surface portion.

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