JP6330203B2 - Solar panel mounting device - Google Patents

Description

  The present invention relates to a solar cell panel mounting apparatus for mounting a solar cell panel on a roof.

  In mounting the solar cell panel on the roof, it is necessary to ground the electric charge from the solar cell panel charged by the power generation of the solar cell. In the technique described in Patent Document 1, a plurality of base members are installed side by side in parallel with each other along a direction from the building to the eaves, and a solar cell panel is fixed thereon. At this time, the base member has conductivity, and fine protrusions are provided on the surface on which the solar cell panel is placed. Thereby, when the solar cell panel is fastened and fixed to the base member, the minute protrusion breaks the insulating coating on the surface of the frame of the solar cell panel and comes into electrical contact with the base member. And a solar cell panel is earth | grounded by earth | grounding the appropriate location of a base member by wiring.

JP 2007-211144 A

  However, in the technique described in Patent Document 1, a flange protruding in a direction parallel to the panel from the lower edge of the end of the frame of the solar cell panel is provided, and this flange is pressed and fixed to the base member via a fixture. Yes. As a result, when the solar cell panels are arranged side by side and installed on the base member, the flange and the fixture are interposed between the solar cell panels, so that the solar cell panels cannot be installed close to each other. There is a problem that it is difficult to install as many solar cell panels as possible in a limited space on the roof in a grounded state.

  In view of such a problem, an object of the present invention is to provide a mounting device for mounting as many solar cell panels as possible by arranging solar cell panels on a roof with few gaps in a grounded state.

  1st invention of this invention is a solar cell panel attachment apparatus which attaches a solar cell panel to a base member fixed to a roof using a holding | fitting metal fitting, Comprising: The said solar cell panel is electroconductive on the outer periphery. A frame is provided in which a main body is covered with an insulating film, and the base member is a conductive C-channel-shaped member, and a panel receiving portion on the opening side and a pressing metal fitting on the opposite side to the opening portion The panel receiving portion is provided with a protruding portion that protrudes outward, and the holding metal fitting is hooked on the upper end of the end of the frame of the solar cell panel; and A mounting portion that is attached to the presser fitting mounting portion, and a flat plate-like connecting portion that connects the hooking portion and the mounting portion, with the panel receiving portion of the base member facing upward, Placed, When the frame is attached to the presser fitting mounting portion using the presser fitting so that both the front and back surfaces of the connecting portion are parallel to the frame, the projections bite into the frame and break the coating. The base member and the frame are electrically connected to each other in contact with the main body.

  According to the first invention, when the solar cell panel is attached to the base member using the presser fitting, the projection provided on the panel receiving portion of the base member breaks through the insulating coating on the frame of the solar cell panel and conducts electricity. Since the frame and the base member are in electrical conduction with each other, they can be grounded by grounding appropriate portions of the base member with wiring. At that time, the solar battery panel is placed on the panel receiving portion of the base member, and the hooking portion of the presser fitting is hung on the upper end of the end of the frame. Installed and fixed to. Further, the hook portion of the presser fitting and the attachment portion are connected by a flat plate-like connecting portion, and the connecting portion is arranged to be parallel to the frame. Thereby, when it is going to arrange | position a solar cell panel side by side, only a flat connection part exists between solar cell panels, and it separates solar cell panels by the board thickness of the approximate connection part. , Can be installed in close proximity. As a result, it is possible to install more solar cell panels by arranging the solar cell panels on the roof with few gaps in a grounded state.

  According to a second aspect of the present invention, in the first aspect, when the frame is attached to the base member, the projecting portion is a range in which the hook portion is vertically projected with respect to a surface including the panel receiving portion. It is characterized in that the vertical projection range is provided in a range extending in a direction perpendicular to the major axis direction of the base member on the surface including the panel receiving portion.

  According to the second invention, when the frame of the solar cell panel is pressed against the panel receiving portion of the base member by the presser fitting, the protrusion is perpendicular to the surface including the panel receiving portion of the hooking portion of the presser fitting. Within the projected range, or within the range obtained by extending the vertically projected range in a direction perpendicular to the major axis direction of the base member on the plane including the panel receiving portion. As a result, the pressing force of the holding bracket is efficiently applied between the projection and the projecting part via the frame, and the projecting part breaks through the insulating coating on the frame and contacts the conductive main body to ensure conduction. To be grounded more reliably.

  According to a third aspect of the present invention, in the first aspect or the second aspect, the protrusion is provided by burring the panel receiving portion.

  According to the third aspect of the invention, since the protrusion is formed in an annular shape by burring, a wider contact area can be secured compared to a conical protrusion or the like, and grounding can be achieved more reliably.

It is a figure which shows the state which attached the attachment apparatus which concerns on one Embodiment of this invention on the roof. It is the II-II arrow directional cross-sectional view of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. It is a disassembled sectional view which shows the condition which attaches a solar cell panel to a base member via a clamp. It is a disassembled perspective view which shows the condition which attaches a pressing metal fitting to a base member. It is a figure which expands and shows the VI part of FIG. It is sectional drawing equivalent to FIG. 2 of the said one Embodiment in other embodiment of this invention. It is sectional drawing equivalent to FIG. 3 of the said one Embodiment in other embodiment of this invention.

  1 to 6 show an embodiment of the present invention. As shown in FIG. 1, the solar cell panel mounting apparatus 10 of the present embodiment includes a base member 20 fixed on a roof, and a presser fitting 40 that presses and fixes the solar cell panel 30 against the base member 20. And. In each figure, arrows indicate the ridge direction and eave direction of the roof, and the upper surface direction and the lower surface direction of the roof. In the following description, the description regarding the direction is made based on this direction.

  The solar battery panel 30 is a member in which an aluminum frame 32 is attached to the outer periphery of a rectangular flat panel body 31 in which a plurality of solar battery cells are arranged and protected with resin or glass. The frame 32 is formed by cutting a long member having a constant cross section manufactured by extrusion molding into a required size. As shown in FIGS. 2 and 3, the cross section is perpendicular to the panel body 31 from the lower surface of the fitting part 32 a and the substantially J-shaped fitting part 32 a that is fitted to the terminal part of the panel body 31. Two standing wall portions 32b that extend in parallel downward and a lower end portion 32c that connects the lower ends of the standing wall portions 32b and extends toward the inside of the panel parallel to the lower surface of the fitting portion 32a are provided. The frame 32 is attached to the outer periphery of the panel body 31 so as to fit the fitting portion 32a and surround the entire circumference. An insulating film (not shown) is provided on the outer surface of the frame 32 by anodizing or painting.

  The base member 20 is a C channel-shaped member manufactured by roll forming of a hot dip galvanized steel sheet. The C channel shape is a shape of a lip groove steel having a substantially C-shaped cross section. As shown in FIG. 3 and FIG. 5, the bottom surface portion 21, the side surface portion 22 extending vertically upward from both side ends of the bottom surface portion 21, and the inner side so as to be parallel to the bottom surface portion 21 from the upper end of the side surface portion 22, respectively. The lip portion 23 extends toward the end. As shown in FIG. 2, bolt holes 21 a for passing bolts 55 for attaching the base member 20 to the sheet metal roof 50 are formed at predetermined positions on the bottom surface portion 21. The number and arrangement positions of the bolt holes 21a are appropriately determined according to the length of the base member 20 and the like. Further, a bolt hole 21b for passing a bolt 57 for attaching the presser fitting 40 is formed at another predetermined position of the bottom surface portion 21. The number and arrangement positions of the bolt holes 21b are appropriately determined according to the length of the base member 20 and the like, but the interval between the adjacent bolt holes 21b is substantially equal to the short length of the solar cell panel 30. ing. Here, the bottom surface portion 21 corresponds to a “holding metal mounting portion” in the claims, and the lip portion 23 corresponds to a “panel receiving portion” in the claims.

  As shown in FIGS. 2 and 5, a cylindrical convex portion 23a is provided at a predetermined position of the lip portion 23 of the base member 20 by performing a burring process from the inside to the outside. The height of the convex portion 23a from the surface of the lip portion 23 is about 1 millimeter. The convex portion 23a is provided on both of the lip portions 23 facing each other at a position close to the eave side in the longitudinal direction of the base member 20 with respect to the hole 21b for attaching the presser fitting 40. Details of the position will be described later. Here, the convex part 23a is equivalent to the "projection part" of a claim.

  As shown in FIGS. 2 and 5, the presser fitting 40 is made of a long material having a constant cross-sectional shape manufactured by extrusion molding of aluminum with a dimension slightly smaller than the dimension between the front ends of the lip part 23 of the base member 20. It is a member formed by cutting. A hooking portion 41 for hooking the end portion of the frame 32 of the solar cell panel 30, an attachment portion 42 attached to the bottom surface portion 21 of the base member 20, a connecting portion 43 for connecting the hooking portion 41 and the attachment portion 42, and attachment The bracing part 44 provided between the part 42 and the connection part 43 is provided. The hook part 41, the attachment part 42, and the connection part 43 are plate-shaped having substantially the same thickness (about 5 mm). A connecting portion 43 is provided in a perpendicular bisector of the hook portion 41, and an attachment portion 42 extending toward one side in parallel to the hook portion 41 is provided at an end opposite to the hook portion 41 of the connecting portion 43. Is provided. The hook portion 41 includes an eaves side hook portion 41 a that extends on the opposite side of the mounting portion 42, and a ridge side hook portion 41 b that extends on the same side as the mounting portion 42. A reinforcing bar 44 is provided at the corner of the joint between the connecting portion 43 and the mounting portion 42 for reinforcement. The bracing portion 44 has a thin plate shape as compared with the hook portion 41, the attachment portion 42, and the connecting portion 43. A hole 42 a for allowing a bolt 57 to be attached to the bottom surface portion 21 of the base member 20 is formed in the flat portion of the attachment portion 42. The surface of the presser fitting 40 is not provided with an insulating coating by anodizing or painting, but may be provided.

  The attachment procedure of the solar cell panel 30 using the solar cell panel attachment device 10 to the sheet metal roof 50 will be described. As shown in FIGS. 1 and 3, the sheet metal roof 50 is formed by connecting a plurality of panels 51 made of hot-dip galvanized steel sheets extending in the direction from the ridge to the eave with a substantially U-shaped cross section in parallel with each other. The roof is caulked and joined at the portion 52. The panel 51 is not limited to a hot dip galvanized steel plate, but may be a steel plate coated or an aluminum plate. A plurality of base members 20 are arranged in parallel so that the longitudinal direction thereof coincides with the direction from the ridge of the sheet metal roof 50 toward the eaves. In order to attach the solar cell panels 30A and 30B to the roof, it is necessary to fix the solar cell panels 30A and 30B in a state of being spanned over the two adjacent base members 20. At this time, since the attachment procedure is the same for any of the base members 20, only the attachment procedure for one base member 20 will be described, and the description for the other one will be omitted.

  As shown in FIGS. 2 and 3, the base member 20 is attached via a bracket 60 formed by bending a hot-dip galvanized steel sheet to the sheet metal roof 50 with the bottom surface portion 21 facing down. The bracket 60 is a cylindrical member having an isosceles trapezoidal cross section in which an upper bottom 61 and a lower bottom 63 having an opening are connected by a leg 62. The leg portion 62 is provided with a bolt hole 62a at a position of the same size from the upper bottom portion 61 to the lower bottom portion 63, and is tightened by a nut 62c through the bolt 62b to both the bolt holes 62a. When the connecting portion 52 of the sheet metal roof 50 is inserted into the opening of the lower bottom portion 63 and tightened with the bolts 62b and nuts 62c, the lower bottom portion 63 approaches and closes the opening with the connecting portion 52 interposed therebetween, and the upper bottom portion 61 is closed. And a substantially rectangular cross section. In this state, the bracket 60 is fixed to the sheet metal roof 50. A bolt hole 61 a is provided in the upper bottom portion 61 of the bracket 60. The bolt hole 61a and the bolt hole 21a of the base member 20 are made to coincide with each other, the bolt 55 is passed through, and the nut 56 is fastened and fixed through the washer 59a and the spring washer 59b.

  Next, as shown in FIG. 1, a presser fitting 40 for fixing the eaves side end portion of the frame 32 of the solar cell panel 30 </ b> A arranged closest to the eaves side to the base member 20 is attached. Specifically, as shown in FIGS. 2, 5, and 6, the eaves side hook 41 a of the presser fitting 40 is disposed on the eave side, and the ridge side hook 41 b is positioned on the ridge side, The hole 42a of the mounting portion 42 of the presser fitting 40 is aligned with the hole 21b of the bottom surface portion 21 of the base member 20, and a bolt 57 is passed through and tightened and fixed with a nut 58 via a washer 59a and a spring washer 59b. At this time, the connecting portion 43 of the presser fitting 40 is in a state in which the direction perpendicular to the ridge side and eave side surfaces coincides with the major axis direction of the base member 20. That is, both the front and back surfaces of the connecting portion 43 are in parallel with the frame 32. Moreover, the convex part 23a is not provided in the lip | rip part 23 of the base member 20 located in the ridge side of the connection part 43 of the pressing metal fitting 40 at this time. Therefore, with the presser fitting 40 attached to the base member 20, the long side end of the frame 32 of the solar battery panel 30 </ b> A is slid from the ridge side onto the lip 23 of the base member 20, so It can be inserted and fixed between the ridge-side hook 41b and the lip 23.

  Next, as shown in FIGS. 1 to 3, the eaves side hook 41 a of the other presser fitting 40 is hooked on the ridge side end of the frame 32 of the solar battery panel 30 </ b> A, and the bottom surface 21 of the base member 20 is The hole 42a of the attachment part 42 of the presser fitting 40 is aligned with the hole 21b, and the bolt 57 is passed through, and is fastened and fixed by the nut 58 via the washer 59a and the spring washer 59b. At this time, the connecting portion 43 of the presser fitting 40 is in a state where the direction perpendicular to the surface of the ridge side and the eaves side coincides with the major axis direction of the base member 20, and the surface of the ridge side and the eaves side is The base member 20 is disposed over almost the entire region between the tip portions of the lip portion 23. At this time, a convex portion 23 a is provided on the lip portion 23 of the base member 20 located on the eave side of the connecting portion 43 of the presser fitting 40. Specifically, the range in which the eaves-side hooking portion 41 a is vertically projected on the surface including the upper surface of the lip portion 23 is perpendicular to the major axis direction of the base member 20 on the surface including the upper surface of the lip portion 23. The convex part 23a is provided in the range extended in the direction. Therefore, when the presser fitting 40 is fastened and fixed to the base member 20 with the bolts 57 and the nuts 58, the convex portion 23 a breaks through the insulating coating on the lower surface of the frame 32 and bites into the base member 20 and the frame 32. And become electrically conductive. Thereby, the solar cell panel 30A is grounded by grounding an appropriate portion of the base member 20 by wiring. At this time, the load from the eaves side hooking portion 41a is transmitted to the convex portion 23a almost in a vertical shape. Thereby, the convex part 23a penetrates the insulating coating more efficiently, and the electric conduction state between the base member 20 and the solar cell panel 30A is secured.

  In order to attach the solar cell panel 30B to the base member 20, the long side end portion of the frame 32 of the solar cell panel 30B is attached to the ridge side hook portion 41b of the presser fitting 40 attached to the ridge side end portion of the solar cell panel 30A. Is slid on the lip portion 23 of the base member 20 from the ridge side, and is inserted and fixed between the ridge side hook portion 41 b of the presser fitting 40 and the lip portion 23. At this time, the convex portion 23 a is not provided on the lip portion 23 of the base member 20 located on the ridge side of the connecting portion 43 of the presser fitting 40. Therefore, attachment to the base member 20 of the eaves side edge part of the solar cell panel 30B can be performed similarly to the solar cell panel 30A. Thereafter, by repeating this procedure, a plurality of solar cell panels 30 can be attached to the base member 20.

  The present embodiment configured as described above has the following operational effects. In each of the solar cell panels 30, the base member 20 is in a state where the convex portion 23 a provided on the lip portion 23 of the base member 20 breaks through the insulating coating on the lower surface of the frame 32 in the eaves-side frame 32. Fixed to. As a result, the frame 32 and the base member 20 are electrically connected to each other, and can be grounded by grounding appropriate portions of the base member with wiring. At this time, between the eaves-side solar cell panel 30 and the ridge-side solar cell panel 30, the plate-like connecting portion 43 of the presser fitting 40 has a base member 20 in a direction perpendicular to the ridge-side and eave-side surfaces. It is arranged in a state that coincides with the major axis direction. Therefore, the distance between the eaves-side solar cell panel 30 and the ridge-side solar cell panel 30 is substantially equal to the plate thickness of the connecting portion 43, and the solar cell panels 30 can be attached in close proximity. As a result, it is possible to install more solar cell panels by arranging the solar cell panels on the roof with few gaps in a grounded state. Further, the convex portion 23 a is formed by projecting the eave side hooking portion 41 a of the presser fitting 40 perpendicularly to the surface including the upper surface of the lip portion 23 on the surface including the upper surface of the lip portion 23. Since it is provided within a range extending in a direction perpendicular to the long axis direction, the load from the eaves side hooking portion 41a is transmitted in a substantially vertical manner. Thereby, the convex part 23a breaks through the insulating coating more efficiently, and the electric conduction state between the base member 20 and the solar cell panel 30 is secured. Further, since the bottom surface portion 21 at a position lower than the lip portion 23 on which the solar cell panel 30 is placed by the height of the side surface portion 22 is fixed to the bracket 60 with bolts 55 and nuts 56, The distance between the bolt 55 and the nut 56 can be increased. Thereby, even if the panel main body 31 is bent and deformed due to the influence of wind or snow, etc., the possibility that the panel main body 31 is damaged due to the bolts 55 and nuts 56 coming into contact with the panel main body 31 can be suppressed.

  7 and 8 show another embodiment of the present invention. Regarding the same configuration as that of the above-described embodiment, the same reference numerals are given to the drawings, and the description is omitted. The difference from the above embodiment is that the base member 200 is shorter than the base member 20 and that the base member 200 is attached to the bracket 51 and the presser fitting 40 is attached to the base member 200 with a single bolt 57. It is a point. A procedure for attaching the solar cell panel 30 to the sheet metal roof 50 will be described. First, as shown in FIG. 1, at the position where the eaves side end portion of the frame 32 of the solar cell panel 30 </ b> A arranged closest to the eaves side is fixed by the presser fitting 40, the hole 42 a of the presser fitting 40 and the base member 200. The bracket 60 is attached to the sheet metal roof 50 with the hole 210a and the bolt hole 61a of the bracket 60 aligned. Next, the bolts 57 are passed through the holes 42a, 210a, and the bolt holes 61a, and the nuts 58 are tightened and fixed through the washers 59a and the spring washers 59b. Then, with the presser fitting 40 attached to the base member 200, the long side end of the frame 32 of the solar cell panel 30 </ b> A is slid from the ridge side on the lip 230 of the base member 200, It is inserted and fixed between the ridge side hook part 41 b and the lip part 230. Next, at the position where the eaves side hook 41a of the other presser fitting 40 is hooked and fixed to the ridge side end of the frame 32 of the solar cell panel 30A, the hole 42a of the presser fitting 40 and the hole 210a of the base member 200 are fixed. The bracket 60 is attached to the sheet metal roof 50 with the bolt holes 61a of the bracket 60 aligned. Then, the bolts 57 are passed through the holes 42a, 210a, and the bolt holes 61a, and the nuts 58 are tightened and fixed through the washers 59a and the spring washers 59b. At this time, the convex part 23a is provided in the lip | rip part 230 of the base member 200 located in the eaves side of the connection part 43 of the pressing metal fitting 40. FIG. Specifically, the range in which the eaves side hooking portion 41a is vertically projected on the surface including the upper surface of the lip portion 230 is perpendicular to the major axis direction of the base member 200 on the surface including the upper surface of the lip portion 230. The convex part 23a is provided in the range extended in the direction. Therefore, when the presser fitting 40 is fastened and fixed to the base member 200 with the bolts 57 and the nuts 58, the convex portion 23 a penetrates the insulating coating on the lower surface of the frame 32 and bites into the base member 200 and the frame 32. And become electrically conductive. Regarding the attachment of the solar cell panel 30B, the same procedure as the attachment of the solar cell panel 30A is repeated as in the above-described embodiment. Thereafter, the mounting of the plurality of solar battery panels 30 is the same.

  In such other embodiments, the material cost can be reduced because the base member 200 is short, and the bracket 60, the base member 200, and the presser fitting 40 can be attached by a single bolt 57, so that the work efficiency is improved. Can also be achieved.

  As mentioned above, although specific embodiment was described, this invention is not limited to those external appearances and structures, A various change, addition, and deletion are possible in the range which does not change the summary of this invention. For example, in the above-described embodiment, the present invention is applied to a sheet metal roof. However, the present invention is not limited to this, and application to a concrete roof, a slate roof, a tile roof, and the like is also possible.

10 Solar cell panel mounting device 20, 200 Base member 21, 210 Bottom surface portion (holding metal mounting portion)
22, 220 Side surface part 23, 230 Lip part (panel receiving part)
23a Convex part (protrusion part)
30, 30A, 30B Solar panel 31 Panel body 32 Frame 40 Presser fitting 41 Hooking part 42 Attachment part 43 Connection part 50 Sheet metal roof 60 Bracket

Claims (3)

A solar cell panel mounting device that attaches a solar cell panel to a base member that is fixed to the roof using a presser fitting,
The solar cell panel is provided on its outer periphery with a frame in which the conductive main body is covered with an insulating film,
The base member is a conductive C-channel-shaped member, and has a panel receiving portion on the opening side and a presser fitting mounting portion on the opposite side to the opening, and the panel receiving portion faces outward. Protruding protrusions are provided,
The presser fitting is a hook portion hooked to the upper end of the end of the frame of the solar cell panel, an attachment portion attached to the presser fitting attachment portion, and a flat plate-like shape connecting the hook portion and the attachment portion. A connecting portion,
The solar cell panel is placed with the panel receiving portion of the base member facing up, and the frame is fixed to the frame by using the pressing metal fitting so that both front and back surfaces of the connecting portion are parallel to the frame. The solar cell panel mounting device in which, when mounted on a metal mounting part, the protruding part bites into the frame, breaks the coating and contacts the main body part, and the base member and the frame are electrically connected.   2. The projection according to claim 1, wherein when the frame is attached to the base member, the projecting portion is within a range in which the hook portion is vertically projected with respect to a surface including the panel receiving portion, or the range in which the vertical projection is performed. The solar cell panel mounting apparatus provided in the range extended in the direction perpendicular | vertical with respect to the major axis direction of the said base member in the surface containing a panel receiving part. 3. The solar cell panel mounting device according to claim 1 or 2, wherein the protrusion is provided by burring on the panel receiving portion.

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