JP3767287B2 - Solar panel fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solar cell panel fixing device for fixing a solar cell panel in the form of a flat plate, which is a main body of solar power generation, to an installation structure such as a roof.
[0002]
[Prior art]
Many solar panels used for photovoltaic power generation have a plurality of electrically connected solar cells sandwiched between a surface protection substrate and a back surface protection material, and between the surface protection substrate and the back surface protection material. A configuration is adopted in which a frame made of aluminum or the like is attached to the periphery of a base plate formed into a square board by forming an adhesive layer. Such a solar cell panel is installed in an installation structure such as a roof via a fixing device. A conventional solar cell panel fixing device has a configuration as disclosed in, for example, Japanese Patent Application Laid-Open No. 7-153982.
[0003]
That is, as shown in FIG. 10, a vertical base 41 made of channel material is provided in a column on an installation structure 40 such as a roof, and a horizontal base 42 made of channel material is fixed to the vertical base 41 in a row. The horizontal base 42 is fastened to the vertical base 41 at one flange portion with the web portion in the vertical direction, and the other flange serves as a receiving surface for receiving the flange 44 of the frame forming the edge of the solar cell panel 43. It is configured. A threaded burring portion 45 is formed in the flange portion serving as the receiving surface, and a support plate 46 having a U-shaped cross section is applied from the front side to the flange 44 of the solar cell panel 43 placed on the receiving surface. The solar cell panel 43 is fixed by screwing the bolt 47 into the burring portion 45 and fastening the support plate 46. The flanges 44 of the frames of the adjacent two horizontal rows of solar cell panels 43 are placed on the receiving surface, and the frames of the adjacent two rows of solar cell panels 43 are fixed by one support plate 46.
[0004]
[Problems to be solved by the invention]
In the fixing device for the solar cell panel 43 as described above, there is a problem that the solar cell panel 43 can be easily fixed when a load due to strong wind or snow is repeatedly applied. That is, when an air current is blown between the back surface of the solar cell panel 43 and the installation structure 40 due to strong wind or the like, a load in the direction of the arrow in FIG. This load is borne by the flange 44 of the solar cell panel 43 sandwiched between the receiving surface and the support plate 46. However, since a moment is applied to the flange 44, the flange 44 slides on the receiving surface and the support plate 46. When this force is repeatedly applied, the solar cell panel 43 can be loosened. Moreover, although the load due to snow accumulation or snow sliding is applied in the flow direction, this also acts as a force that the flange 44 of the solar cell panel 43 slides on the receiving surface and the support plate 46, so that this force is repeatedly applied. After all, the solar cell panel 43 can be loosened.
[0005]
The present invention has been made in order to solve the conventional problems, and the object of the present invention is to obtain a solar panel fixing device with excellent fixing function that is resistant to strong winds and snow. It is to improve the workability of the fixing device and to enhance the functions.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 includes an open portion provided at the center of the upper portion, a holding surface on which a first flange projecting from the frame of the solar cell panel is placed, and a side of the solar cell panel A pedestal having a stepped portion for placing the edge, a projecting edge projecting downward from the edge of the open portion, and a sandwiching member insertion groove comprising a second flange projecting inwardly and horizontally from the stepped portion An inner holding member having a third flange projecting upward from the edge portion, the third holding member being housed in the holding member insertion groove, and being installed above the first flange, An outer holding member that holds the flange and the holding surface with the inner holding member;
[0007]
In order to achieve the above object, the invention according to claim 2 is an open portion provided in the center of the upper portion, a holding surface on which the first flange projecting from the frame of the solar cell panel is placed, and a side of the solar cell panel A pedestal having a stepped portion for placing the edge, a second flange extending inwardly and horizontally from the stepped portion and having an upper surface at a position higher than the lower surface of the solar cell panel, and a side on the upper surface of the second flange An inner holding member on which the edge is installed, and an outer holding member that is installed above the first flange and clamps the first flange and the holding surface with the inner holding member.
[0008]
The invention of claim 3 in order to achieve the object described above is provided with a guide rail that is continuous with the lower surface of the inner clamping member in the sliding direction with respect to the gantry to the opposite shape, slidably inner clamping member and the outside the guide rail A nut with a hook for fastening the clamping member is mounted, and means for clamping the flange of the solar cell panel by the inner clamping member and the outer clamping member by screwing the screw from the outer clamping member side to the nut is provided. .
[0009]
In order to achieve the above object, the invention of claim 4 comprises means for positioning the nut by plastic deformation of the guide rail.
[0010]
In order to achieve the above object, the invention of claim 5 comprises means for setting a partial gap on the contact surface of the inner clamping member with the nut.
[0011]
In order to achieve the above object, the invention according to claim 6 is provided with an engagement recess at a predetermined position where the nut of the inner clamping member is mounted, and the nut is engaged with the engagement recess on the contact surface side with the inner clamping member. An engaging projection is provided.
[0012]
In order to achieve the above-mentioned object, the invention of claim 7 provides a plurality of mounts arranged on the same line with the end faces aligned in abutting state, and an inner clamping member is mounted across the butted portions of these mounts. Means for coupling.
[0013]
In order to achieve the above object, the invention of claim 8 comprises means for making a scratch on the contact partner side on the contact surface of the inner clamping member with the clamping member insertion groove.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
The present embodiment shown in FIG. 1 to FIG. 5 relates to a fixing device that fixes a solar cell panel 1 in the form of a flat plate, which is a main body of solar power generation, in a state where it is laid on an installation structure 2 such as a roof structure of a house. Is. As shown in FIG. 1, the solar cell panel 1 has a structure in which a frame 3 made of aluminum or the like is mounted around a base that is a photovoltaic power generation unit configured in a rectangular flat plate shape. The base is sandwiched between a plurality of solar cells electrically connected in series by tab wires between sheets of a transparent heat-fusing agent forming a filler layer, and this is a back surface protective material such as a surface protective substrate and a weather resistant film. Between the two, and heated while evacuating to form a square disk-like panel. The frame 3 has a rectangular shape by combining an upper frame 4 which is the upper side (ridge side in the roof structure), a lower frame 5 which is the lower side (eave side in the roof structure), and left and right vertical frames. It is configured as a frame structure. The upper frame 4 and the lower frame 5 are respectively provided with fixing flanges 6 extending outwardly as shown in FIG. 2 at the approximate center of their outer ends along the longitudinal direction. The free edge of the flange 6 is a rising edge 7 protruding upward.
[0015]
The fixing device is to fix the solar cell panel 1 to the installation structure 2 such as a roof in the vertical and horizontal directions, and is made of aluminum having a substantially convex cross section that is fixed in the horizontal direction on the installation structure 2 (required strength and weather resistance). A hollow rail-like gantry 8 can be used as long as conditions such as workability are satisfied, and the flange 6 of the solar cell panel 1 is fixed on the gantry 8 by screw tightening. And fixing means. The gantry 8 is provided with an open portion 9 along the longitudinal direction at the center of the convex upper surface, and the flanges 6 of the adjacent solar cell panels 1 are respectively placed on both sides of the open portion 9. Two parallel holding surfaces 10, a holding member insertion groove 11 that opens inwardly along the holding surface 10 at the lower inner side of each holding surface 10, and both outer sides of the holding member insertion grooves 11 A step portion 12 for placing the edge of the solar cell panel 1 configured on the outer side is provided, and a plurality of rows are provided in parallel at intervals corresponding to the width in the vertical direction of the solar cell panel 1. It is done. The surface of the gantry 8 is subjected to surface treatment.
[0016]
An edge of the holding surface 10 on the opening portion 9 side has a protruding edge 13 protruding inward, whereby the opening portion inside the holding member insertion groove 11 has a bowl shape (see FIG. 2). The lower side of the holding member insertion groove 11 is constituted by a flange 14 that protrudes to the inside of the holding surface 10.
[0017]
The clamping and fixing means includes an inner clamping member 15 provided on the inner side of the gantry 8, a long outer clamping member 16 provided on the outer side along the gantry 8, and a bolt for screwing the inner clamping member 15 and the outer clamping member 16. 17 and a nut 19 having a flange 18 on one end side. The outer clamping member 16 is an extruded product of aluminum having a substantially U-shaped cross section, and is configured to have a length that is about the width of the solar cell panel 1 in the lateral direction. Each flange 20 protruding downward from both edges of the outer clamping member 16 has a protruding amount substantially equal to the rising dimension of the rising edge 7 of the flange 6 on the solar cell panel 1 side. The web portion 21 between the flanges 20 is formed to have a width substantially equal to the width of the upper surface of the gantry 8, and an inverted trapezoidal protruding portion 22 that can enter the open portion 9 of the gantry 8 is continuous in the longitudinal direction at the center of the rear surface. Is formed. In the center of the web portion 21, insertion holes 23 through which the bolts 17 are passed are formed in several places along the longitudinal direction.
[0018]
As shown in FIGS. 2, 3, and 4, the inner clamping member 15 is an aluminum extruded product having a substantially U-shaped cross section that is substantially symmetrical with the outer clamping member 16, and has a much shorter length than the outer clamping member 16. ing. Each flange 24 projecting upward from both edges of the inner clamping member 15 has a projecting amount substantially equal to the projecting dimension of the projecting edge 13 projecting inside the mount 8. The web portion 25 between the flanges 24 is formed to have a width substantially equal to the width dimension between the holding member insertion grooves 11 of the gantry 8, and a protruding portion of the outer nip member 16 that protrudes from the opening portion 9 of the gantry 8 at the front center. A trapezoidal protrusion 26 is formed in the longitudinal direction so that the lower surface can come into contact with 22. An insertion hole 27 through which the bolt 17 is passed is formed in the center of the web portion 25 (see FIG. 4). The inner clamping member 15 is attached to the gantry 8 so as to be slidable in the longitudinal direction of the gantry 8 by fitting the edge portions 28 at both ends into the respective clamping member insertion grooves 11 from the end of the gantry 8.
[0019]
As shown in FIGS. 4 and 5, a guide rail 29 that is continuous in the sliding direction with respect to the gantry 8 is provided at the center of the back surface of the inner clamping member 15 so as to be opposed. The guide rails 29 are squeezed inward from each other at their free ends, and a series of reverse convex grooves 30 for inserting the nuts 19 are formed by the two guide rails 29. The nut 19 is assembled to the groove 30 such that the opposing surface of the square portion contacts the free edge of the guide rail 29, and the flange 18 is fitted in the groove 30 and can slide in the groove 30. In the position where the insertion hole 27 and the screw hole are aligned, the free end edge of each guide rail 29 is positioned as shown in FIG. With this configuration, the nut 19 does not fall off, so that the mounting operation of the nut 19 can be performed easily. In addition, a groove 32 that forms a partial gap with the nut 19 is provided on the contact surface with the nut 19 on the back surface of the inner clamping member 15 so that moisture such as rainwater does not stay in the portion. It is like that.
[0020]
The solar cell panel 1 is fixed to the fixing device described above as follows. That is, the upper edge of the solar cell panel 1 is placed on the upper side of the two bases 8 fixed in parallel in the horizontal direction on the installation structure 2, and the lower edge is placed on the lower side (see FIG. 1). At this time, the flange 6 of the frame 3 of the solar cell panel 1 is received on the holding surface 10 of each gantry 8, and the ridge corner of the edge on the back side is received in a state of being fitted to the stepped portion 12 of the gantry 8. (See FIG. 2). Thereafter, the inner clamping members 15 corresponding to the number of the insertion holes 23 of the outer clamping member 16 are mounted by inserting the edge portions 28 from the ends of the mounts 8 into the clamping member insertion grooves 11. The position of each inner clamping member 15 with respect to the gantry 8 is adjusted by sliding to the position corresponding to the insertion hole 23 of the outer clamping member 16, and the inner clamping member 15 is covered from above so as to cover the flange 6 of the solar cell panel 1. Then, the bolts 17 are screwed into the nuts 19 attached to the inner clamping members 15 from the insertion holes 23 and tightened. If the vertical frame of the frame 3 has the flange 6, the solar cell panel 1 may be fixed by fixing the gantry 8 in parallel in the vertical direction.
[0021]
Thereby, the solar cell panel 1 is clamped and fixed on the holding surface 10 of the gantry 8 by the outer clamping member 16 and the inner clamping member 15. A lower flange 6 and an upper flange 6 of the adjacent solar cell panel 1 are placed on the two holding surfaces 10 of one gantry 8, and a lower end edge and an upper end edge of the adjacent solar cell panel 1 are arranged. Fixed together. When an air flow such as strong wind is blown between the back surface of the solar cell panel 1 fixed and placed on the installation structure 2 and the installation structure 2 in this way, a load for lifting the solar cell panel 1 is applied. This load acts as a force for expanding the opening 9 between the holding surfaces 10 of the gantry 8.
[0022]
However, in the fixing device of the present embodiment, the holding surface 10 is supported by the end surface of the solar cell panel 1 that is engaged with the stepped portion 12, and the edge portion 28 of the inner clamping member 15 and the frame 8 are Since the holding member insertion groove 11 is engaged in a hand-like shape of the bag, the holding surface 10 of the gantry 8 is hardly deformed, the solar cell panel 1 is loosely fixed, or the opening 9 is expanded. Thus, the inner clamping member 15 is not detached from the gantry 8. Moreover, although the load due to snow accumulation or snow sliding is applied to the solar cell panel 1 in the flow direction, the lower end portion of the solar cell panel 1 is also held by the straight wall portion of the step portion 12 of the gantry 8, so that the flange 6 is held. It does not slide with respect to the surface 10 or the outer clamping member 16, and does not cause loosening of the fixed state of the solar cell panel 1.
[0023]
The mounting of the nut 19 to the inner clamping member 15 can be easily performed by plastically deforming 31 at least two locations on both sides of the nut 19 of the guide rail 29 inward with an appropriate tool at the construction site. The number of steps for fixing 19 can be reduced. Even if rainwater or the like enters the gap between the nut 19 and the inner clamping member 15, it is drained by the groove 32 and does not stagnate, so that corrosion of the nut 19 can be prevented.
[0024]
Embodiment 2. FIG.
The present embodiment shown in FIGS. 6 and 7 is a device for improving the workability of attaching the nut 19 to the fixing device for the solar cell panel 1 shown in the first embodiment. Is the same as that shown in the first embodiment. Therefore, the same parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.
[0025]
In the fixing device according to the present embodiment, the inner holding member 15 shown in the first embodiment is provided with an engagement recess 33, and the nut 19 is provided with an engagement protrusion 34 that engages with the engagement recess 33. It is. The engagement recess 33 is formed as a circular or square recess on the back surface of the inner clamping member 15 concentrically with the insertion hole 27. The engaging protrusion 34 is formed as a protrusion smaller than the circular or square flange 18 concentrically with the screw hole on the contact surface side of the nut 19 with the inner clamping member 15.
[0026]
By adopting this configuration, if the nut 19 is inserted and slid into the groove 30 between the guide rails 29, the engaging protrusion 34 engages with the engaging recess 33. This engagement position is a position where the nut 19 is fixed, and the nut 19 is temporarily fixed at a predetermined position. Here, if at least two of the guide rails 29 on both sides of the nut 19 are plastically deformed 31 inward with an appropriate tool, the nut 19 can be easily mounted at a predetermined position, and the insertion hole 27 and the screw hole are also provided. The center lines match. Therefore, the workability of the nut 19 fixing work is improved and the workability is also improved. Other configurations and functions are the same as those of the first embodiment.
[0027]
Embodiment 3 FIG.
The present embodiment shown in FIG. 8 and FIG. 9 is an embodiment in which the device for fixing the solar cell panel 1 shown in the first and second embodiments is devised to improve the function, except for the configuration related thereto. 1 and 2 are the same. Therefore, the same parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof will be omitted.
[0028]
In the present embodiment, a plurality of the gantry 8 shown in the first and second embodiments are arranged on the same line and end faces are arranged in abutting state, and the inner clamping member 15 is mounted across the gantry connecting portion. Are connected by clamping means. The inner clamping member 15 is provided with a sharp contact structure 35 on the contact surface with the clamping member insertion groove 11 to create a scratch on the contact partner side. By adopting this configuration, the fixing of the plurality of mounts 8 is strengthened by the inner clamping member 15 and the fixing function of the mount 8 is improved, and the supports 8 are also scratched by the inner holding member 15 of the connecting portion. Since the surface treatment is removed and it is electrically continuous, the gantry 8 can be used as a common line when the frame 3 of the solar cell panel 1 is grounded, and the workability is also improved. Other configurations and functions are the same as those of the first embodiment.
[0029]
【The invention's effect】
According to the invention of claim 1 , a solar cell panel fixing device having a fixing function resistant to strong winds and the like can be obtained.
[0030]
According to invention of Claim 2, the fixing device of the solar cell panel excellent in the fixing function with tolerance with respect to snow accumulation etc. is obtained.
[0031]
According to the invention of claim 3, the nut can be easily attached together with the effect according to claim 1 or claim 2.
[0032]
According to the invention of claim 4, with the effect according to claim 3, positioning of the nut can be easily performed on site, and workability is improved.
[0033]
According to the invention of claim 5, together with the effect according to claim 3 or claim 4, stagnation of rainwater or the like can be prevented and corrosion of the nut can be prevented.
[0034]
According to the sixth aspect of the present invention, the nut can be temporarily fixed together with the effect according to any of the third to fifth aspects, and the mounting of the nut can be surely and easily performed.
[0035]
According to the invention of claim 7, the fixing of the plurality of mounts is further strengthened together with the effect according to any one of claims 1 to 6.
[0036]
According to invention of Claim 8, a mount can be used as a common line of an earth with the said effect which concerns on any one of Claims 1-7, and workability | operativity improves.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a solar cell panel fixing device according to a first embodiment.
2 is an end view of the solar cell panel fixing apparatus according to Embodiment 1. FIG.
FIG. 3 is an end view showing a relationship between an inner clamping member and a nut of the fixing device according to the first embodiment.
4 is a front view of an inner clamping member of the fixing device according to Embodiment 1. FIG.
FIG. 5 is a rear view of the inner clamping member equipped with the nut of the fixing device of the first embodiment.
6 is an end view showing a relationship between an inner clamping member and a nut of the fixing device according to Embodiment 2. FIG.
7 is an end view of the solar cell panel fixing device according to Embodiment 2. FIG.
8 is an end view of an inner clamping member of the solar cell panel according to Embodiment 3. FIG.
9 is a front view of a connecting portion of a gantry of a solar cell panel fixing device according to Embodiment 3. FIG.
FIG. 10 is a cross-sectional view of a conventional solar cell panel fixing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Solar cell panel, 2 Installation structure, 3 Frame, 4 Upper frame, 5 Lower frame, 6 Flange, 8 Mount, 9 Opening part, 10 Holding surface, 11 Clamping member insertion groove, 12 Step part, 15 Inner clamping member, 16 outer clamping member, 17 bolt, 18 鍔, 19 nut, 28 edge, 29 guide rail, 30 groove, 31 plastic deformation, 32 groove, 33 engagement recess, 34 engagement protrusion, 35 contact structure.

Claims (8)

An open portion provided at the center of the upper portion, a holding surface on which the first flange projecting from the frame of the solar cell panel is placed, a step portion on which the edge of the solar cell panel is placed, and the open portion A gantry having a nipping member insertion groove comprising a protruding edge protruding downward from the edge and a second flange projecting inwardly and horizontally from the stepped portion;
An inner pinching member having a third flange protruding upward from the edge portion, wherein the third flange is housed in the pinching member insertion groove;
An apparatus for fixing a solar cell panel, comprising: an outer holding member that is installed above the first flange and holds the first flange and the holding surface with the inner holding member. From the opening part provided in the center of the upper part, the holding surface for placing the first flange projecting from the frame of the solar cell panel, the step part for placing the edge of the solar cell panel, and the step part A pedestal having a second flange extending inward and horizontally, and having an upper surface at a position higher than the lower surface of the solar cell panel;
An inner holding member in which an edge portion is installed on the upper surface of the second flange;
An outer holding member installed above the first flange and holding the first flange and the holding surface with the inner holding member;
The solar cell panel fixing device, wherein a bottom portion of the side edge portion of the inner holding member is located above a bottom portion of the side edge portion of the solar cell panel. A guide rail that is continuous in the sliding direction with respect to the gantry is provided oppositely on the lower surface of the inner clamping member, and a nut with a hook is attached to the guide rail so that the inner clamping member and the outer clamping member can be screwed together. 3. The flange of the solar cell panel is clamped by the inner clamping member and the outer clamping member by screwing the screw from the outer clamping member side to the nut. Solar panel fixing device. 4. The solar cell panel fixing device according to claim 3, wherein positioning for determining the position of the nut is performed by plastic deformation of the guide rail. The solar cell panel fixing device according to claim 3, wherein a partial gap is set in a contact surface between the inner clamping member and the nut. An engagement recess is provided at a predetermined position where the nut of the inner clamping member is mounted, and an engagement protrusion that engages with the engagement recess is provided on a contact surface side with the inner clamping member. The solar cell panel fixing device according to any one of claims 3 to 5. A plurality of mounts are provided on the same line with end surfaces arranged in abutting state, an inner clamping member is mounted across the butting portions of these mounts, and the mounts are connected to each other. The fixing device of the solar cell panel in any one of. The solar cell panel fixing device according to any one of claims 1 to 7, further comprising a structure in which a contact surface of the inner clamping member with the clamping member insertion groove is scratched.

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