JP2014031690A - Support frame and solar cell module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support frame which suppresses a load from being locally applied even when a roof itself is curved, such as a warping roof, a convex curved roof, or the like, and can secure strength by sufficiently securing the number of supporting points.SOLUTION: A support frame 30 supports a rack 3 provided to extend along an inclined direction of a roof 4 at a plurality of places from the roof 4. The support frame includes: a base metal fitting 1 fixed to the roof 4; and a height increase metal fitting 2 connecting the base metal fitting 1 to the rack 3. The base metal fitting 1 includes: a roof fixing portion fixed to the roof 4; and a base holding part held by sandwiching the rack 3 from both sides of a width direction being nearly vertical to an extending direction of the rack 3. The height increase metal fitting 2 includes: a height increase holding part held by sandwiching the rack 3 from both sides of the width direction; and an insertion holding part provided on the roof 4 side to the height increase holding part and held in the base holding part by being inserted into the base holding part.

Description

  The present invention relates to a support frame for fixing a solar cell facility on a roof and a solar cell module using the support frame.

  When installing facilities such as solar cells on the roof of a building, a support frame for fixing these facilities and a vertical rack are previously mounted on the roof. In mounting the support frame, securing the strength to withstand the mass of the equipment installed on the roof, the wind pressure in the area where it is installed, earthquakes, etc. is an important issue, and various methods that take this issue into consideration have been put into practical use. .

  For example, in Patent Document 1, when installing a solar cell on a tiled roof material, a base plywood for fixing to a talc and a spacer plywood for aligning the step with the tile are arranged on the base plate, and a support frame is placed on the base plywood. Attach the support frame between the roof tiles. Thereafter, a technique is disclosed in which the vertical rack is supported and fixed on the upper surface of the support frame by several support frames.

JP 2003-242187 A

  However, in the above fixing method, when the roof itself is curved, such as a warped roof (lighted roof) or a raised roof, a gap is generated between the support frame and the vertical rack that form a part of the frame structure of the solar cell module. An area in which the vertical rack cannot be fixed by the support frame tends to occur. If it does so, since the number of supporting points of a vertical rack cannot be ensured, it will become difficult to ensure sufficient intensity with respect to a snow load or a wind pressure load.

  In addition, if the roof itself is curved or if the roof itself is not formed with sufficient flatness, the slope and height of the upper surface of the support frame will vary from one support frame to another, so that the support frame is locally Load is applied, and the support frame may be deformed.

  The present invention has been proposed in view of the above, and even when the roof itself is curved, such as a warped roof (lighted roof) or a raised roof, it is possible to suppress a local load from being applied. It is an object of the present invention to provide a support frame that can ensure strength by securing a sufficient number of support points.

  In order to solve the above-described problems and achieve the object, the present invention is a support frame that supports a rack provided so as to extend along an inclination direction of a roof from a roof at a plurality of positions, and is fixed to the roof. A base bracket, and a height increasing bracket that is provided between the base bracket and the rack and connects the base bracket and the rack. The foundation bracket includes a roof fixing portion that is fixed to the roof, and the rack extends. And a base holding portion that can be held by holding the rack from both sides in the width direction that is substantially perpendicular to the direction, and the height-enhancing bracket can hold the rack from both sides in the width direction. A height-increasing holding portion, and an insertion holding portion that is provided on the roof side with respect to the height-increasing holding portion and is inserted into the base holding portion and can be held in the base holding portion. .

  According to the present invention, even if the roof itself is curved, such as a warped roof (lighted roof) or a raised roof, it is possible to suppress the load locally, and the strength by securing a sufficient number of support points. There is an effect that a support frame that can be secured can be obtained.

FIG. 1 is a side view showing a schematic configuration of the solar cell module according to Embodiment 1 of the present invention. FIG. 2 is a front view, a side view, and a top view of the foundation metal fitting. FIG. 3 is a front view and a side view of the height-increasing metal fitting. FIG. 4 is a front view and a side view of the rack. FIG. 5 is a front view of the support frame and the rack connected to the support frame. FIG. 6 is a side view of the support frame and the rack connected to the support frame. FIG. 7 is a plan view and a front view of the height adjustment fitting. FIG. 8 is a view showing a warped roof as an example of the roof to which the support frame is fixed. FIG. 9 is a diagram illustrating another example in which a rack is supported on a warped roof using a support frame. FIG. 10 is a diagram illustrating a rising roof as an example of a roof to which a support frame is fixed. FIG. 11 is a diagram illustrating an example in which a rack is supported on a rising roof using a support frame. FIG. 12 is a front view, a side view, and a top view showing a base metal fitting as a modification.

  Below, the support frame and solar cell module concerning embodiment of this invention are demonstrated in detail based on drawing. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a side view showing a schematic configuration of a solar cell module 50 according to Embodiment 1 of the present invention. The solar cell module 50 is configured by fixing the solar cell facility 40 on the roof using the support frame 30. The solar cell equipment 40 may be a general one provided with a solar cell panel (not shown) that generates electricity by irradiating the light receiving surface with sunlight, and detailed description thereof is omitted.

  The solar cell module 50 is configured by fixing the solar cell facility 40 to the rack 3 provided so as to extend along the inclination direction of the roof. The rack 3 is supported from the roof by the support frame 30. In the following description, the size of the rack 3 along the roof inclination direction is referred to as a length, and the direction is referred to as a length direction. The size of the rack 3 along the direction perpendicular to the length direction is referred to as the width, and the direction is referred to as the width direction.

  The support frame 30 includes a base metal fitting 1 and a height-increasing metal fitting 2. FIG. 2 is a front view, a side view, and a top view of the foundation metal fitting 1. The base metal fitting 1 is provided with a roof fixing portion 16 for fixing the base metal fitting 1 to a roof talc or the like. The roof fixing portion 16 is formed with a hole 13 for screwing the talc or the like. The roof fixing part 16 has a shape having a step in a side view so as to protrude from the gap of the tile 6 as a roofing material.

  A foundation holding portion 17 is provided at an end portion of the roof fixing portion 16 that protrudes from the gap between the tiles 6. The foundation holding part 17 has a pair of foundation wall parts 11 facing each other and a foundation bottom part 15 connecting the lower ends of the foundation wall parts 11 and is formed in a U-shaped cross section.

  The base wall portion 11 is formed such that the interval X1 between the inner side surfaces is substantially equal to the width X4 of the rack 3 (see also FIG. 4), and the rack 3 can be held between the base wall portions 11. . A foundation side through hole 12 into which a bolt can be inserted along the width direction of the rack 3 is formed in the foundation wall portion 11. The base side through holes 12 are formed at positions facing each other.

  FIG. 3 is a front view and a side view of the height-increasing metal fitting 2. The height-increasing metal fitting 2 includes a height-increasing holding portion 25 and an insertion holding portion 26. The height-increasing holding part 25 has a pair of height-increasing wall parts 24 facing each other and a height-increasing bottom part 27 connecting the lower ends of the height-increasing wall parts 24 and is formed in a U-shaped cross section. .

  The height-increasing wall portion 24 is formed such that the distance X3 between the inner side surfaces is substantially equal to the width X4 of the rack 3 (see also FIG. 4), and the rack 3 can be held between the height-increasing wall portions 24. It has become. The height increasing wall portion 24 is formed with a height increasing side through hole 22 into which a bolt can be inserted along the width direction of the rack 3. The height increasing side through holes 22 are formed at positions facing each other.

  The insertion holding portion 26 has a pair of insertion wall portions 23 that are formed to protrude from the lower surface of the bottom portion 27 and are opposed to each other, and an insertion bottom portion 28 that connects the lower ends of the insertion wall portions 23 and has a U-shaped cross section. Is formed. The insertion wall portion 23 is formed so that the interval X2 between the outer surfaces is substantially equal to the width X4 of the rack 3 (see also FIG. 4), and can be inserted between the foundation wall portions 11 of the foundation metal fitting 1. ing.

  Further, the insertion wall portion 23 is formed with an insertion side through hole 21 into which a bolt can be inserted along the width direction of the rack 3. The insertion-side through hole 21 is formed as an elongated hole that increases in height from the insertion bottom 28 and extends in the direction toward the bottom 27. The insertion side through holes 21 are formed at positions facing each other.

  FIG. 4 is a front view and a side view of the rack 3. The rack 3 has a substantially square shape when viewed from the front, and the solar cell equipment 40 is fixed to the top surface 33 thereof. A rack-side through hole 31 into which a bolt can be inserted along the width direction of the rack 3 is formed in the side wall 32 of the rack 3. The rack-side through hole 31 is formed as an elongated hole extending along the length direction of the rack 3. The rack side through holes 31 are formed at positions facing each other.

  FIG. 5 is a front view of the support frame 30 and the rack 3 connected to the support frame 30. FIG. 6 is a side view of the support frame 30 and the rack 3 connected to the support frame 30. As shown in FIG. 5, the base metal fitting 1 and the height-enhanced metal fitting 2 are connected to form a support frame 30, and the rack 3 can be held by the height-increasing holding portion 25 of the height-enhanced metal fitting 2. The base metal fitting 1 and the height-increased metal fitting 2 are formed by inserting the insertion holding portion 26 of the height increasing metal fitting 2 into the base holding portion 17 of the base metal fitting 1 and the base side through hole 12 and the insertion side through hole 21. Are connected by a bolt 9 and a nut 10 which are passed through.

  Further, the height-increasing metal fitting 2 and the rack 3 include a bolt 39 inserted through the rack side through hole 31 and the height increased side through hole 22 in a state where the rack 3 is inserted into the holding portion 25 with the height increased. It is connected with a nut 41. The bolt used for connecting the metal fittings is a single bolt 9 penetrating the through holes 12 and 21 on both sides, as used for connecting the base metal fitting 1 and the height-enhancing metal fitting 2 in FIG. Alternatively, the two bolts 39 penetrating through the through holes 22 and 31 on both sides may be used as used for the connection between the rack 3 and the height-increasing metal fitting 2.

  Although illustration is omitted, if the rack 3 is inserted into the base holding part 17 of the base metal fitting 1, the height increasing metal fitting 2 can be omitted and the base metal fitting 1 and the rack 3 can be directly connected. That is, the support frame 30 can be configured without using the height-increasing metal fitting 2. Thus, the height of the support frame 30 can be adjusted according to the distance between the roof and the rack 3 by selecting the presence or absence of the height-increasing metal fitting 2.

  Here, since the insertion side through hole 21 formed in the insertion holding portion 26 of the height-increasing metal fitting 2 is a long hole, it is possible to adjust the insertion depth of the insertion holding portion 26 to the basic holding portion 17. It has become. Thereby, it becomes possible to finely adjust the height of the support frame 30. Further, as shown in FIG. 5, the insertion depth of the insertion holding portion 26 can be stabilized by interposing the height adjusting bracket 7 between the insertion bottom portion 28 and the base bottom portion 15.

  FIG. 7 is a plan view and a front view of the height adjustment fitting 7. The height adjusting bracket 7 has a plate-like shape with a thickness of about 2 mm, and is configured by attaching a double-sided tape 72 to the front and back. As the height adjustment fitting 7, for example, a metal plate is used. The height adjusting fitting 7 is bonded to the base bottom portion 15 and the insertion bottom portion 28 by a double-sided tape 72. Note that an adhesive may be used instead of the double-sided tape 72.

  FIG. 8 is a view showing a warped roof 4 as an example of a roof to which the support frame 30 is fixed. The warped roof 4 has a concave roof surface along the inclination direction. In addition, in FIG. 1, the example which fixed the support stand 30 to the curvature roof 4 is shown. As shown in FIG. 1, when the rack 3 is installed on the warped roof 4, there is a difference in the distance from the roof surface between the end portion and the intermediate portion of the rack 3. In the first embodiment, the height of the support frame 30 can be adjusted by the presence or absence of the height-increasing metal fitting 2. Therefore, by increasing the height of the support frame 30 using the metal fitting 2 with an increased height, it is possible to support the intermediate portion of the rack 3 that increases the distance from the roof surface. Thereby, it is possible to ensure the strength by securing a sufficient number of support points.

  FIG. 9 is a diagram illustrating another example in which the rack 3 is supported on the warped roof 4 by using the support frame 30. When the warp of the warped roof 4 is abrupt or when a rack 3 having a long length is used, the end of the rack 3 must be provided even if the end of the rack 3 does not have a certain distance from the roof surface. Will interfere with the roof surface. In such a case, as shown in FIG. 9, the height-added metal fitting 2 is used for the support frame 30 that supports the end of the rack 3, and the support frame 30 that supports the intermediate portion has more than that. By using the height-increasing metal fitting 2, it is possible to secure the number of support points while suppressing interference between the end of the rack 3 and the roof surface.

  FIG. 10 is a diagram illustrating the rising roof 5 as an example of the roof to which the support frame 30 is fixed. As for the rising roof 5, the roof surface is convex along the inclination direction. FIG. 11 is a diagram illustrating an example in which the rack 3 is supported on the rising roof 5 by using the support frame 30. In the rising roof 5, as shown in FIG. 10, the distance from the roof surface is increased at the end of the rack 3. Therefore, the height is made larger than that of the support frame 30 that supports the intermediate portion by using the metal fitting 2 with an increased height for the support frame 30 that supports the end of the rack 3.

  In addition, since the support stand 30 is fixed to the roof, the mounting angle changes according to the warp or the rise of the roof. On the other hand, in the first embodiment, the height-increasing metal fitting 2 or the base metal fitting 1 and the rack 3 are connected by bolts inserted along the width direction of the rack 3, so that the height as shown in FIG. The connection angle between the additional metal fitting 2 or the basic metal fitting 1 and the rack 3 can be changed.

  Accordingly, by adjusting the connection angle between the height-added metal fitting 2 or the foundation metal fitting 1 and the rack 3 in accordance with the warp or rise of the roof, it is possible to suppress a local load from being applied to the support frame 30, and 30 deformation can be suppressed. The connecting angle between the height-increasing metal fitting 2 or the basic metal fitting 1 and the rack 3 can be adapted to most warped roofs 4 and rising roofs 5 if a degree of freedom of about ± 30 ° can be secured.

  Further, even when the roof shape is flat, it is not formed with sufficient flatness, and the height of the roof surface may not be uniform in practice. In such a case, it is necessary to correct the unevenness. However, since the connection angle between the height-increasing metal fitting 2 or the foundation metal fitting 1 and the rack 3 can be adjusted, the unevenness adjustment becomes unnecessary.

  In the first embodiment, the insertion side through hole 21 is a long hole and the height of the support frame 30 can be finely adjusted. However, the height increase side through hole 22 is a long hole and the support frame 30 Fine adjustment of the height may be possible. In this case, the height adjusting bracket 7 may be interposed between the height-increasing bottom portion 27 and the bottom surface of the rack 3.

  FIG. 12 is a front view, a side view, and a top view showing a foundation metal fitting 1 as a modification. As shown in FIG. 12, if the support frame 30 is configured using the base metal fitting 1 for a flat roof, it can be applied to a single thatched roof material or a metal thatched roof material.

  As described above, the support frame according to the present invention is useful for fixing the solar cell facility on the roof, and is particularly suitable for fixing the solar cell facility to a warped roof or a raised roof.

  DESCRIPTION OF SYMBOLS 1 Base metal fittings, 2 height increase metal fittings, 3 racks, 4 curvature roof, 5 raised roofs, 6 tiles, 7 height adjustment metal fittings, 9 bolts, 10 nuts, 11 foundation wall parts, 12 foundation side through holes, 13 holes, 15 foundation bottom part, 16 roof fixing part, 17 foundation holding part, 21 insertion side through hole, 22 height increasing side through hole, 23 insertion wall part, 24 height increasing wall part, 25 height increasing holding part, 26 insertion holding Part, 27 Height-increasing bottom part, 28 Insertion bottom part, 30 Support base, 31 Rack side through hole, 32 Side wall, 33 Top face, 39 Volt, 40 Solar cell equipment, 41 Nut, 50 Solar cell module, 72 Double-sided tape, X1 , X2, X3 spacing, X4 width.

Claims (6)

A support frame for supporting a rack provided so as to extend along the inclination direction of the roof from the roof at a plurality of locations,
A foundation fitting fixed to the roof;
A height-increasing metal fitting provided between the base metal fitting and the rack and connecting the base metal fitting and the rack;
The foundation metal fitting includes a roof fixing portion that is fixed to the roof, and a foundation holding portion that is capable of holding the rack from both sides in a width direction that is substantially perpendicular to a direction in which the rack extends. And
The height-increasing metal fitting is provided on the roof side with respect to the height-increasing holding portion, and is provided on the roof side with respect to the height-increasing holding portion, and can be held by holding the rack from both sides in the width direction. An insertion holding portion that is inserted into and can be held by the foundation holding portion. The foundation holding part has a pair of foundation wall parts facing each other and a foundation bottom part connecting the lower ends of the foundation wall parts, and is formed in a U-shaped cross section,
The interval between the inner side surfaces of the foundation wall is formed substantially equal to the width of the rack,
The height increasing holding portion has a pair of height increasing wall portions facing each other and a height increasing bottom portion connecting the lower ends of the height increasing wall portions, and is formed in a U-shaped cross section.
The interval between the inner side surfaces of the height-increased wall portion is formed substantially equal to the width of the rack,
The insertion holding portion has a pair of insertion wall portions that are formed to protrude from the lower surface of the increased bottom portion and face each other,
The support frame according to claim 1, wherein an interval between outer surfaces of the insertion wall portion is formed substantially equal to a width of the rack. The insertion holding part further has an insertion bottom part connecting the lower ends of the insertion wall part and is formed in a U-shaped cross section,
The support frame according to claim 2, further comprising a height adjustment fitting provided between the base bottom portion and the insertion bottom portion in a state where the insertion holding portion is inserted into the base holding portion. A foundation side through hole into which a bolt can be inserted along the width direction of the rack is formed in the foundation wall portion,
The height increasing wall portion is formed with a height increasing side through hole into which a bolt can be inserted along the width direction of the rack,
The insertion wall is formed with an insertion side through hole into which a bolt can be inserted along the width direction of the rack.
The rack and the foundation metal fitting are connectable with a bolt that penetrates the foundation side through hole,
The rack and the height-enhanced metal fitting can be connected with a bolt penetrating the height-increased side through hole,
4. The support frame according to claim 2, wherein the base metal fitting and the height-enhanced metal fitting can be connected by a bolt that passes through the base side through hole and the insertion side through hole. .   The support frame according to claim 4, wherein the insertion-side through hole is a long hole extending in a direction from the insertion bottom to the height-increased bottom. A support frame according to any one of claims 1 to 5,
And a solar cell panel held via the support frame.

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