JP2018162575A - Frame for solar power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a long frame for solar power generator having a satisfactory draining performance.SOLUTION: The frame for solar power generator includes: a plurality of fixtures configured to engage a peripheral part of a first solar cell module and a peripheral part of a second solar cell module adjoining in a ridge eaves direction of a roof; and a long frame body formed with a guide rail groove which is configured slidably to allow the position of the plural fixtures to be adjusted on which peripheral parts of the first and the second modules are placed. The frame is installed along a girder direction of the roof.SELECTED DRAWING: Figure 5

Description

  The present disclosure relates to a stand for a solar power generation device.

  The solar power generation apparatus is constructed by attaching a plurality of solar cell modules on a long pedestal frame fixed to a roof. For example, Patent Document 1 discloses a solar power generation device that is disposed along a roof girder direction and includes a long horizontal beam member (second support member) that engages with a frame of a solar cell module. It is disclosed.

JP2015-158125A

  By the way, when using the elongate horizontal beam member extended in the girder direction of a roof like the solar power generation device disclosed by patent document 1, rain water, snow-melting water, etc. are blocked by the horizontal beam member, for example. Since it is easy, it is required to have a structure that fully considers drainage. The objective of this indication is to implement | achieve favorable drainage in the stand for solar power generation devices provided along the girder direction of a roof. In addition, a stand for a photovoltaic power generator that can be easily loaded and has good transportability is realized.

  A stand for a photovoltaic power generation apparatus according to an embodiment of the present disclosure includes a plurality of fixings that engage a peripheral portion of a first solar cell module and a peripheral portion of a second solar cell module that are adjacent to each other in a roof building direction. And a guide rail groove that supports the plurality of fixing brackets at intervals in a girder direction substantially perpendicular to the roof ridge direction, and has a guide rail groove capable of slidingly adjusting the positions of the plurality of fixing brackets. 1 and a long frame body on which the peripheral edge of the second module is placed, and is provided along the girder direction of the roof.

  According to one aspect of the present disclosure, good drainage can be realized in a stand for a solar power generation device provided along a girder direction of a roof. Moreover, the stand for solar power generation devices that is one embodiment of the present disclosure is easy to load and has good transportability.

It is a top view of the solar power generation device which is an example of an embodiment. It is a perspective view of the joint metal fitting which is an example of an embodiment. It is a perspective view of the joint metal fitting which is another example of an embodiment. It is a width direction sectional view of a module frame which is an example of an embodiment. It is a disassembled perspective view of the solar power generation device which is an example of embodiment. It is AA sectional view taken on the line in FIG. It is width direction sectional drawing which shows the crosspiece member which is another example of embodiment. It is width direction sectional drawing which shows the crosspiece member which is another example of embodiment. It is width direction sectional drawing which shows the crosspiece member which is another example of embodiment. It is width direction sectional drawing which shows the crosspiece member which is another example of embodiment. It is width direction sectional drawing which shows the crosspiece member which is another example of embodiment.

  Hereinafter, an example of an embodiment will be described in detail with reference to the drawings. Since the drawings referred to in the embodiments are schematically described, the dimensional ratios of the components drawn in the drawings should be determined in consideration of the following description. In the present specification, the description of “substantially to” is intended to include not only completely parallel but also substantially recognized as parallel when described as being substantially parallel. Moreover, it is assumed from the beginning that the components of the plurality of embodiments described below are appropriately combined.

  FIG. 1 is a plan view of a solar power generation device 10 that is an example of an embodiment. In FIG. 1 etc., the eaves direction of the roof 100 (refer FIG. 4) to which the solar power generation device 10 is attached is shown by the arrow X, and the girder direction substantially perpendicular to the eaves direction is shown by the arrow Y. As illustrated in FIG. 1, the solar power generation device 10 includes a plurality of solar cell modules 11 including solar cell modules 11 </ b> A and 11 </ b> B, and the solar power generation device mount 1. The solar cell module 11A includes a solar cell panel 12A (first solar cell panel) and a module frame 13A (first module frame) installed on the peripheral edge of the panel (the same applies to the solar cell module 11B). ). In this embodiment, all the solar cell modules 11 shall have the same shape and the same dimension.

  In the present specification, for convenience of explanation, of the two solar cell modules 11 arranged adjacent to each other in the eave building direction of the roof 100, the module arranged on the eave side is arranged on the solar cell module 11A, the building side. This module is referred to as a solar cell module 11B.

  The solar power generation device 10 includes a long horizontal beam member 19 provided along the girder direction of the roof 100 as the solar power generation device mount 1. The crosspiece member 19 includes a plurality of fixing brackets 20 that engage the peripheral edge of the solar cell module 11A and the peripheral edge of the solar cell module 11B, and a guide rail groove 35 that allows the positions of the plurality of fixing brackets 20 to be slidably adjusted. And a frame body 30 having the same. The frame body 30 is a long member on which the peripheral portions of the solar cell modules 11A and 11B are placed. The crosspiece member 19 includes a plurality of fixing brackets 20 arranged at intervals in the longitudinal direction of the frame body 30.

  The solar power generation device 10 is configured by attaching a plurality of solar cell modules 11 to a roof 100 using a cross beam member 19. A plurality of crosspiece members 19 are arranged in the eaves ridge direction of the roof 100 at intervals corresponding to the eave building direction length of the solar cell module 11, and are also arranged in the girder direction of the roof 100. The crosspiece member 19 is provided at the boundary between the two solar cell modules 11A and 11B, but may be provided at the eaves-side end and the ridge-side end of the solar power generation device 10. The eaves-side end and the ridge-side end of the solar power generation device 10 may be fixed by a dedicated crosspiece member.

  It is preferable that the solar power generation device 10 includes a vertical beam member 110 for fixing the frame body 30 to the roof 100. In the present embodiment, the solar power generation apparatus gantry 1 includes a horizontal beam member 19 and a vertical beam member 110. The frame main body 30 of the horizontal beam member 19 is fixed on the vertical beam member 110, and is fixed to the roof 100 via the vertical beam member 110. The vertical beam member 110 is a member that is shorter than the frame body 30 and is attached along the eaves-ridge direction of the roof 100. For example, two vertical beam members 110 are attached to one frame main body 30. By installing the vertical beam member 110 and forming a gap between the frame main body 30 and the roof material 101 (see FIG. 4), it is possible to suppress rainwater or the like from accumulating under the solar power generation device 10.

  The solar cell module 11 includes a solar cell panel 12 in which a plurality of solar cells are sandwiched between protective members such as a glass substrate and a resin substrate, and a module frame 13 is installed so as to surround four sides of the panel. Have. The module frame 13 protects the peripheral edge of the solar cell panel 12 and is used for fixing the solar cell module 11 to the crosspiece member 19. For example, the solar cell module 11 and the solar cell panel 12 have a rectangular shape in plan view, but the shape in plan view is not particularly limited, and may be a square shape, a pentagonal shape, or the like.

  In the solar power generation device 10, each solar cell module 11 has a short side substantially parallel to the eaves-ridge direction, and the short sides of the solar cell modules 11 adjacent to each other in the girder direction of the roof 100 are substantially in contact with each other. Battery modules 11 are arranged in a grid pattern. Further, the gap between the solar cell modules 11 </ b> A and 11 </ b> B is formed linearly along the girder direction of the roof 100.

  In the solar power generation device 10, the crosspiece member 19 is installed in the boundary part of solar cell module 11A, 11B along the beam direction of the roof 100, ie, along the long side of solar cell module 11A, 11B. On the frame main body 30 of the crosspiece member 19, the ridge side end of the solar cell module 11 </ b> A and the eaves side end of the solar cell module 11 </ b> B are mounted, and each module is fixed on the frame main body 30 by the fixing bracket 20. Is done.

  The crosspiece member 19 can receive the portions (fixing bracket 20) that engage with the solar cell modules 11A and 11B, the weight of the solar cell modules 11A and 11B, and the loads (positive pressure and negative pressure) applied thereto. It has a structure in which a rigid portion (frame body 30) is separated. As described above, a plurality of the fixtures 20 are attached to the frame body 30 at intervals in the longitudinal direction of the frame body 30.

  That is, it is preferable that the length of the fixing bracket 20 is shorter than the length of the frame body 30 and less than 1/2 times the length of the frame body 30. The length of the frame main body 30 may be approximately the same as the length in the girder direction of the two solar cell modules 11 (length along the girder direction), but in consideration of handleability, drainage, and the like. It is preferable that the length of the solar cell modules 11A and 11B is shorter than the digit direction length.

  For example, the fixing bracket 20 has a length of 10% to 40% of the length of the frame main body 30 and is attached to one frame main body 30. The two fixtures 20 are preferably attached at substantially equal intervals from the longitudinal center on both longitudinal sides of the frame body 30. Thus, by attaching the plurality of fixing brackets 20 to the long frame body 30 in a divided manner, it becomes difficult for rainwater or the like to be dammed and drained easily from between the fixing brackets 20.

  In the example shown in FIG. 1, one frame body 30 is installed at each boundary between the solar cell modules 11 </ b> A and 11 </ b> B. A plurality of frame main bodies 30 are installed side by side in the girder direction of the roof 100. The plurality of frame main bodies 30 arranged in the spar direction of the roof 100 are connected to each other at a predetermined interval in the spar direction by the joint fitting 50. By connecting the frame main body 30 with a gap in this way, rainwater or the like can easily flow through the gap toward the eaves side of the roof 100, and the drainage of the solar power generation device 10 is improved.

  FIG. 2A is a perspective view of the joint fitting 50, and shows two frame bodies 30 connected by the joint fitting 50 by a one-dot chain line. As illustrated in FIG. 2A, the plurality of frame main bodies 30 arranged in the beam direction of the roof 100 are connected by a joint fitting 50. Both the frame body 30 and the joint fitting 50 have a rectangular tube shape, but the joint fitting 50 is slightly smaller than the frame body 30 and is inserted into the hollow portion 31 of each frame body 30. The joint fitting 50 may be screwed to each frame body 30.

  The joint fitting 50 may be provided with a stopper 51 for adjusting the interval between the two frame bodies 30. The stopper 51 is, for example, a protruding piece standing on the upper surface of the joint fitting 50, and is formed by cutting a part of the fitting and bending it upward. Two stoppers 51 are formed at predetermined intervals in the longitudinal direction of the joint fitting 50, and each of them comes into contact with the longitudinal end surface of the frame body 30. Thereby, the approach of the two frame main bodies 30 is prevented, and the predetermined interval is formed. The stopper 51 may be formed on the lower surface side in order to reduce the intrusion of water from the cut, or may be provided on the frame main body 30 side as shown in FIG. 2B.

  Hereinafter, with reference to FIGS. 3 to 5, the module frame 13 and the crosspiece member 19 (the fixing bracket 20 and the frame main body 30) constituting the fixing structure of the photovoltaic power generation apparatus 10 to the roof 100 will be described in detail. The configuration of the vertical beam member 110 will also be briefly described.

  FIG. 3 is a cross-sectional view in the width direction of the module frame 13 attached along the long side of the solar cell module 11. As illustrated in FIG. 3, the module frame 13 includes an inner groove 16 into which the peripheral edge of the solar cell panel 12 is inserted, and an outer groove 17 that opens toward the outer side opposite to the solar cell panel 12 side. . The module frame 13 includes, for example, a main body portion 14 having a substantially rectangular tube shape, and a substantially L-shaped flange portion 15 provided on the main body portion 14.

  In the module frame 13, an inner groove 16 is formed between the upper surface of the main body portion 14 and the flange portion 15. An adhesive or a sealing material may be filled in a gap between the solar cell panel 12 inserted into the inner groove 16, the main body portion 14, and the flange portion 15. An outer groove 17 is formed in the side wall portion facing the outside of the main body portion 14.

  The outer groove 17 is a groove opened toward the opposite side of the solar cell panel 12, that is, toward the outside of the solar cell module 11. The outer groove 17 is formed in the lower part of the module frame 13 along the longitudinal direction of the module frame 13. The outer groove 17 is a groove into which a part of the fixing fitting 20 (protruding portions 23 and 24 described later) is inserted, and the depth and width (vertical length) that can accommodate the protruding portions 23 and 24. Have The shape of the module frame 13 is not limited to the shape illustrated in FIG.

  FIG. 4 is an exploded perspective view showing the horizontal beam member 19 and the vertical beam member 110. As illustrated in FIG. 4, in the solar power generation device 10, the vertical beam member 110 is fixed on the roof material 101 laid on the roof 100 along the eaves ridge direction, and the frame body 30 is connected to the vertical beam member 110. It is provided so as to be substantially orthogonal and fixed on the vertical beam member 110. The fixing bracket 20 is inserted into the guide rail groove 35 of the frame body 30, and the position of the fixing bracket 20 can be adjusted by sliding along the longitudinal direction of the frame body 30. Thus, by making the fixing bracket 20 detachable from the frame main body 30, it becomes easy to stack each member, and the storability and transportability are improved. In addition, simplification of packaging can be achieved, and labor saving such as unpacking and unloading during construction can also be achieved.

  The fixing metal fitting 20 is a long metal fitting similar to the frame main body 30, and is provided such that its longitudinal direction is along the girder direction of the roof 100. As described above, the length of the fixture 20 is shorter than the length of the frame body 30, and a plurality of fixtures 20 are attached at intervals in the longitudinal direction of the frame body 30. When the solar cell module 11 is fixed by the horizontal beam member, rainwater or the like is easily dammed by the horizontal beam member. However, rainwater or the like can be obtained by providing a plurality of fixing brackets 20 shorter than the frame body 30 at intervals in the digit direction. It becomes difficult to dam and drainage improves.

  The fixture 20 includes a base portion 21 that is inserted into the guide rail groove 35 and a standing wall portion 22 that stands on the base portion 21. The base portion 21 is formed in a plate shape having a certain width, for example. The standing wall portion 22 is preferably erected at the center in the width direction of the base portion 21 and is formed substantially perpendicular to the base portion 21. The standing wall portion 22 has a through hole 25 through which a screw 26 (see FIG. 5) is inserted, and may be screwed to the module frame 13. Moreover, it is preferable that the standing wall part 22 is clamped by the peripheral part of solar cell module 11A, 11B.

  In addition, the fixing bracket 20 includes a convex portion 23 that protrudes from the standing wall portion 22 toward the eaves side of the roof 100, and a convex portion 24 that protrudes from the standing wall portion 22 toward the ridge side of the roof 100. It is preferable that the convex portions 23 and 24 protrude in directions opposite to each other at substantially the same height of the standing wall portion 22, and both are formed with substantially the same protruding length substantially perpendicular to the standing wall portion 22. The convex portions 23 and 24 are formed substantially parallel to the base portion 21 with a predetermined gap between the convex portions 23 and 24, for example. The convex portions 23 and 24 are inserted into grooves (outer grooves 17A and 17B) formed in the side wall portions of the peripheral edge portions of the solar cell modules 11A and 11B facing each other.

  The base portion 21, the standing wall portion 22, and the convex portions 23 and 24 may be formed on a part of the fixing bracket 20, but are preferably formed over the entire length of the fixing bracket 20. The fixture 20 is made of, for example, a metal whose main component is iron or aluminum.

  The frame body 30 is a long metal fitting that is longer than the fixed metal fitting 20 and preferably has a substantially rectangular tube shape. By adopting the rectangular tube shape, the section modulus of the second moment of section is larger than the sectional area of the frame, and the frame is lightweight and excellent in load resistance. The frame body 30 is made of a metal whose main component is aluminum, for example.

  The frame main body 30 includes a hollow portion 31 formed along the longitudinal direction and a guide rail groove 35. The guide rail groove 35 is formed along the longitudinal direction of the frame body 30 at an upper portion of the frame body 30 than the hollow portion 31. The hollow portion 31 and the guide rail groove 35 are preferably formed over the entire length of the frame body 30. As described above, the frame main bodies 30 arranged in the girder direction of the roof 100 are connected by inserting the joint fitting 50 that is slightly smaller than the hollow portion 31 into the hollow portion 31.

  The frame body 30 has a structure in which a frame bottom portion 32, a pair of frame side wall portions 33, and a partition wall portion 34 are formed so as to surround four sides of the hollow portion 31. The partition wall portion 34 is provided between the hollow portion 31 and the guide rail groove 35 and forms the bottom portion of the guide rail groove 35. The pair of frame side wall portions 33 are preferably formed substantially perpendicular to the frame bottom portion 32 and the partition wall portion 34.

  The guide rail groove 35 has an opening 36 through which the standing wall portion 22 of the fixture 20 is passed, and a widened portion 37 formed wider than the opening 36. The opening 36 is an elongated opening formed with a substantially constant width over the entire length of the frame body 30, and is formed on the upper surface of the frame body 30 on which the module frame 13 is placed. The widened portion 37 is a portion into which the base portion 21 of the fixture 20 is inserted, and is formed under the opening 36.

  The frame body 30 is formed with a pair of flanges 38 on both sides in the width direction of the opening 36. The fixing bracket 20 is in a state where the base portion 21 inserted into the widened portion 37 cannot be removed upward by the flange portion 38, and the position of the fixing bracket 20 can be adjusted by a guide rail groove 35. It can be said that the guide rail groove 35 is formed by a flange portion 38 that extends upward from both ends in the width direction of the partition wall portion 34 and is bent inward.

  Further, the frame main body 30 may have a flange 39 protruding in the width direction. The flanges 39 may be provided only on one side in the width direction of the frame body 30, but in this embodiment, the flanges 39 are provided on both sides in the width direction of the frame body 30, Each projecting outward. The collar portion 39 is formed in a substantially L-shaped cross section with the tip portion bent upward. The frame main body 30 is fixed to the vertical beam member 110 using the flange 39.

  The vertical beam member 110 includes a slate fitting 111 that is fixed on the roofing material 101 with screws 114 and a press fitting 112 that is fixed on the slate fitting 111 with bolts and nuts. A plurality of vertical beam members 110 are attached side by side in the eaves ridge direction and the girder direction of the roof 100. The slate fitting 111 has a guide rail groove 113 in which the position of the holding fitting 112 can be adjusted by sliding. The presser fitting 112 is a metal fitting having an inverted U-shape, and presses the flange portion 39 of the frame main body 30 from above to fix the frame main body 30 on the slate metal fitting 111.

  FIG. 5 is a cross-sectional view taken along line AA in FIG. As illustrated in FIG. 5, the module frames 13 </ b> A and 13 </ b> B of the solar cell modules 11 </ b> A and 11 </ b> B are placed on the frame main body 30 and fixed to the frame main body 30 by the fixing bracket 20. The fixing bracket 20 is fixed to the frame body 30 by inserting the base portion 21 into the guide rail groove 35. The fixing bracket 20 may be screwed to the frame body 30 (see FIG. 9 described later).

  On the frame main body 30, an upright wall portion 22 of the fixing bracket 20 protruding from the opening portion 36 of the guide rail groove 35 is erected. The module frames 13A and 13B are disposed opposite to each other on the frame main body 30 with the standing wall portion 22 interposed therebetween. The module frames 13A and 13B have outer grooves 17A and 17B formed in side wall portions facing each other. A protruding portion 23 protruding toward the module frame 13A and a protruding portion 24 protruding toward the module frame 13B are formed at a portion protruding from the opening 36 of the standing wall portion 22.

  The fixing bracket 20 is engaged with each of the module frames 13A and 13B by inserting the convex portion 23 into the outer groove 17A of the module frame 13A and the convex portion 24 into the outer groove 17B of the module frame 13B. Yes. In this state, the bottom plate 18 </ b> A of the module frame 13 </ b> A is inserted between the convex portion 23 and the flange portion 38 of the frame body 30. That is, the fixing bracket 20 is engaged with the module frame 13A by inserting the convex portion 23 into the outer groove 17A and pressing the bottom plate 18A from above. Similarly, the bottom plate 18 </ b> B of the module frame 13 </ b> B is inserted between the convex portion 24 and the flange portion 38 of the frame body 30.

  The protruding lengths of the convex portions 23 and 24 are preferably shorter than the depths of the outer grooves 17A and 17B. In this case, the convex portion 23 can be inserted into the outer groove 17A until the standing wall portion 22 contacts the module frame 13A. Similarly, the convex portion 24 is inserted into the outer groove 17B until the standing wall portion 22 contacts the module frame 13B. In the example shown in FIG. 4, the width of the fixture 20 is maximum at the base portion 21, but may be maximum at portions where the convex portions 23 and 24 are formed.

  The standing wall portion 22 is preferably sandwiched between the module frames 13A and 13B in a state where the convex portions 23 and 24 are inserted into the outer grooves 17A and 17B, respectively. Since the standing wall portion 22 is sandwiched between the module frames 13A and 13B, the interval between the solar cell modules 11A and 11B is reduced, the module mounting efficiency is improved, and the load resistance of the crosspiece member 19 is also improved.

  The standing wall portion 22 may be screwed to one of the module frames 13 </ b> A and 13 </ b> B using a screw 26 inserted through the through hole 25. For example, a countersunk screw is used as the screw 26, and the through hole 25 has a shape that can accommodate the head of the countersunk screw. The shaft portion of the screw 26 may be accommodated in the main body portion 14A of the module frame 13A.

  In the present embodiment, the upper end of the standing wall portion 22 exists at a position lower than the upper ends of the module frames 13A and 13B. However, the height is such that the upper end of the standing wall portion 22 and the upper ends of the module frames 13A and 13B coincide. The standing wall portion 22 may be formed. Moreover, you may raise the standing wall part 22 and may utilize as a snow stop wall (refer FIG. 10 mentioned later).

  In addition, the protrusions 23 and 24 may be formed with protrusions that bite into the module frames 13A and 13B. For example, the convex portions 23 and 24 may have protrusions that protrude downward and bite into the bottom plates 18A and 18B. By providing such a projection, the coupling force between the fixture 20 and the module frames 13A and 13B is improved, and the projection can be used to ground. Similarly, a protrusion that bites into the frame body 30 may be formed on the base portion 21.

  The frame body 30 may have a bottom drain hole 40 formed through the frame bottom 32 and communicating with the hollow portion 31. For example, rainwater or the like may enter the hollow portion 31 from the openings at both ends in the longitudinal direction. Therefore, the water that has entered the hollow portion 31 can be discharged by providing the bottom drain hole 40. The bottom drain hole 40 is preferably formed at the eave side end of the hollow portion 31 in the frame bottom portion 32. The bottom drain hole 40 may be formed only at the eaves side end of the hollow portion 31. However, in order to enable the frame body 30 to be used in either direction and to improve workability and prevent construction mistakes, The holes 40 are preferably formed at both ends in the width direction of the hollow portion 31.

  The bottom drain hole 40 may be circular, square, or the like, but is preferably formed in a slit shape along the longitudinal direction of the frame body 30. By forming the bottom drain hole 40 in a slit shape, the strength of the frame main body 30 is not reduced, and dust and the like are hardly clogged, and good drainage can be obtained. The bottom drain holes 40 may be formed at both ends in the longitudinal direction of the frame main body 30 where water is likely to enter, or may be formed at the central portion in the longitudinal direction of the frame main body 30 where it is difficult to discharge water. For example, the bottom drain hole 40 is formed with a length of 10% to 50% of the entire length of the frame body 30, and is formed with a width of 20% or less of the width of the hollow portion 31 from both ends in the width direction of the hollow portion 31. A plurality of bottom drain holes 40 may be formed along the longitudinal direction of the frame body 30.

  The frame main body 30 may be attached with a movement restricting metal fitting 55 for restricting the movement of the module frame 13A. The movement restricting metal fitting 55 can be fixed to the frame side wall 33 located on the eave side of the frame main body 30 by using screws 56. The movement restricting metal fitting 55 is a plate-like metal fitting whose middle portion is bent slightly outward, protrudes upward from the upper end of the frame main body 30, and faces the main body portion 14A in the vicinity of the main body portion 14A of the module frame 13A. It is preferable to be provided.

  In the example shown in FIG. 5, since the fixture 20 is screwed to the module frame 13A, the ridge side end of the solar cell module 11A is difficult to lift and is resistant to negative pressure. Load resistance is improved.

  According to the solar power generation device 10, good drainage can be ensured by using the cross rail member 19 configured by the fixing bracket 20 and the frame main body 30. Since the crosspiece member 19 has a structure in which a plurality of fixing brackets 20 are installed at intervals in the longitudinal direction of the frame body 30, rainwater or the like flows from between the fixing brackets 20 to the eaves side. Moreover, drainage performance, such as rain water, further improves by connecting the frame main body 30 with a gap in the girder direction of the roof 100 by the joint fitting 50.

  Thus, since the crosspiece member 19 has a structure in which it is difficult to block rainwater or the like, for example, dust or the like hardly accumulates on the solar cell module 11, and the aesthetic appearance of the solar power generation device 10 can be maintained over a long period of time. It is also possible to suppress a decrease in power generation efficiency due to 11 contamination. In winter, the solar cell module 11 and the like may be damaged due to water freezing. However, since the solar power generation device 10 has a structure in which water does not easily accumulate, damage to the device due to water freezing is sufficiently suppressed.

  Hereinafter, another example of the embodiment will be described with reference to FIGS. Hereinafter, the same components as those in the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted, and differences from the above-described embodiment will be mainly described.

  The gantry frame 60 illustrated in FIG. 6 is common to the frame main body 30 in that it includes a hollow portion 31 and a guide rail groove 65 that can slide adjust the position of the fixing bracket 20. On the other hand, the guide rail groove 65 is different from the frame body 30 in that the guide rail groove 65 has a drainage channel 67 formed in the groove bottom along the longitudinal direction of the gantry frame 60. The drainage channel 67 is a depression formed on the upper surface of the partition wall portion 66 constituting the bottom portion of the guide rail groove 65, and has a function of facilitating the flow of rainwater or the like in the longitudinal direction of the guide rail groove 65.

  When rainwater or the like enters the guide rail groove 65, for example, rainwater or the like flows along the guide rail groove 65, but since the fixing bracket 20 is inserted into the guide rail groove 65, the portion to which the fixing bracket 20 is fixed This makes it easier for rainwater to be dammed up. Therefore, by forming a drainage channel 67 and providing a gap between the fixing bracket 20, rainwater or the like is hardly blocked by the fixing bracket 20, and drainage performance in the guide rail groove 65 is improved. In the example shown in FIG. 6, a substantially U-shaped drainage channel 67 is formed at the center in the width direction of the bottom of the guide rail groove 65.

  The joint metal fitting 68 inserted into the hollow portion 31 of the gantry frame 60 may be chamfered in order to facilitate insertion into the hollow portion 31 and to reduce the material cost and weight. .

  The gantry frame 70 illustrated in FIG. 7 is common to the gantry frame 60 having the drainage channel 67 in that it has a drainage channel 77 formed at the bottom of the guide rail groove 75. Similar to the drainage channel 67, the drainage channel 77 is a recess formed in the upper surface of the partition wall portion 76 and is formed along the longitudinal direction of the gantry frame 70, and improves the drainage of the guide rail groove 75.

  In the example shown in FIG. 7, two drainage channels 77 are formed at both ends in the width direction of the guide rail groove 75. Each drainage channel 77 is formed with, for example, a substantially constant width from both ends in the width direction of the guide rail groove 75. The drainage channel 77 may be formed only at the end of the eaves side of the guide rail groove 75. However, in order to make the frame main body 30 usable in any direction and to improve workability and prevent construction errors, the drainage channel 77 is preferably formed at both ends of the guide rail groove 75 in the width direction.

  The gantry frame 80 illustrated in FIG. 8 is different from the frame body 30 in that it has an upper drain hole 87 that is formed through the partition wall 86 that forms the bottom of the guide rail groove 85 and communicates with the hollow portion 31. The upper drain hole 87 is a through hole that communicates the guide rail groove 85 and the hollow portion 31, and allows water that has entered the guide rail groove 85 to be discharged to the hollow portion 31. In this case, it is preferable that a lower drain hole 40 is formed in the frame bottom portion 32.

  In the example shown in FIG. 8, the upper drain holes 87 are formed at positions that overlap with the opening 36 of the guide rail groove 85 in the vertical direction. For example, the upper drain holes 87 are formed at both ends in the width direction of the guide rail groove 85. It is also possible to do. The upper drain hole 87 may be circular or square, but is preferably formed in a slit shape along the longitudinal direction of the gantry frame 80. The upper drain holes 87 may be formed at both ends in the longitudinal direction of the gantry frame 80 where water can easily enter, or may be formed at the central portion in the longitudinal direction of the gantry frame 80 where it is difficult to discharge water. A plurality of upper drain holes 87 may be formed along the longitudinal direction of the gantry frame 80.

  The horizontal beam member 90 illustrated in FIG. 9 is different from the horizontal beam member 19 in that the fixing bracket 91 is screwed to the gantry frame 95. By fixing the fixing metal 91 using the screw 93, the movement of the fixing metal 91 along the longitudinal direction of the gantry frame 95 is surely prevented, and grounding can be performed by the screw 93. The screw 93 passes through the flange portion 98 of the gantry frame 95 and the base portion 92 of the fixing bracket 91 and is fixed to the partition wall portion 99 of the gantry frame 95. The screw 93 may be a countersunk screw so that the head does not protrude from the upper surface of the gantry frame 95, and a through-hole that accommodates the head of the screw 93 may be formed in the flange 98.

  In the example shown in FIG. 9, the standing wall portion 22 is erected so as to be biased to one side in the width direction of the base portion 92, and the width of the base portion 92 is different on both sides of the standing wall portion 22 in the width direction. The screw 93 is attached to the ridge side portion of the base portion 92 where the distance from the standing wall portion 22 to the end portion in the width direction of the base portion 92 is increased. The opening 97 of the guide rail groove 96 is formed so as to be biased to one side in the width direction of the gantry frame 95 in accordance with the position of the standing wall portion 22 of the fixing bracket 91.

  The fixing bracket 200 illustrated in FIG. 10 is different from the fixing bracket 20 in that the standing wall portion 201 protrudes upward from the upper ends of the module frames 13A and 13B. The protruding portion of the standing wall portion 201 has a function as a snow stop wall that blocks snow accumulated on the solar cell module 11, and the items that are arranged around the house as snow slides down from the solar cell module 11 at once. Suppresses damage.

  DESCRIPTION OF SYMBOLS 1 Solar power generation device stand, 10 Photovoltaic power generation device, 11, 11A, 11B Solar cell module, 12, 12A, 12B Solar cell panel, 13, 13A, 13B Module frame, 14, 14A Main body part, 15 collar part, 16 Inner groove, 17, 17A, 17B Outer groove, 18, 18A, 18B Bottom plate, 19 Crosspiece member, 20 Fixing bracket, 21 Base part, 22 Standing wall part, 23, 24 Convex part, 25 Through hole, 26 Screw, 30 frame body, 31 hollow part, 32 frame bottom part, 33 frame side wall part, 34 partition wall part, 35 guide rail groove, 36 opening part, 37 widened part, 38 collar part, 39 collar part, 40 bottom part drain hole, 50 joint fitting , 51 Stopper, 55 Movement restriction bracket, 56 Screw, 100 Roof, 101 Roof material, 110 Vertical beam member, 111 s Over preparative bracket 112 pressing fixture, 113 the guide rail groove, 114 screws

Claims (8)

A plurality of fixtures for engaging the peripheral edge of the first solar cell module and the peripheral edge of the second solar cell module adjacent in the direction of the roof ridge;
The plurality of fixing brackets are supported at intervals in a girder direction substantially perpendicular to the roof ridge eave direction, and have guide rail grooves capable of slidingly adjusting the positions of the plurality of fixing brackets. An elongated frame body on which the peripheral edge of the second module is placed;
With
A stand for a solar power generation device provided along the girder direction of the roof. The fixing bracket is
A base portion inserted into the guide rail groove of the frame body;
A standing wall portion standing on the base portion and sandwiched between peripheral portions of the first and second modules;
A protruding portion that protrudes from the standing wall portion to the eaves side and the ridge side of the roof and is inserted into grooves formed in the side wall portions of the peripheral portions of the first and second solar cell modules facing each other, and
The pedestal for solar power generation device according to claim 1, comprising: The frame body has a hollow portion formed along the longitudinal direction;
The said guide rail groove | channel is a stand for solar power generation devices of Claim 1 or 2 formed along the longitudinal direction of the said frame main body in the upper part of the said frame main body rather than the said hollow part.   The said frame main body is a base for solar power generation devices of Claim 3 which has the bottom part drainage hole formed through the bottom part of the said frame main body, and connected with the said hollow part.   The said frame main body is a stand for solar power generation devices of Claim 3 or 4 which is formed through the bottom part of the said guide rail groove | channel, and has an upper drain hole connected with the said hollow part.   The said guide rail groove | channel is a base for solar power generation devices of any one of Claims 1-5 which has the drainage channel formed in the bottom part along the longitudinal direction of the said base frame main body. The length of the frame main body is shorter than the length in the digit direction of the peripheral edge of the first and second solar cell modules,
The said frame main body located in a row | line | column direction of the said roof is a stand for solar power generation devices of any one of Claims 1-6 connected with a predetermined gap mutually with the joint metal fitting.   The stand for a solar power generation device according to any one of claims 1 to 7, wherein the standing wall portion protrudes upward from the upper ends of the peripheral edge portions of the first and second modules.

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