WO2008044425A1 - Fixing structure of solar cell module - Google Patents

Abstract

[PROBLEMS] To provide a simple fixing structure of a solar cell module in which the fixing position of the solar cell module can be adjusted easily. [MEANS FOR SOLVING PROBLEMS] In a structure for fixing a solar cell module (1) by means of a longitudinal material (2) arranged along the inclining direction of the fixing surface of a roof, or the like, an elongated hole (22) is formed in the longitudinal material (2) in the inclining direction of the fixing surface of a roof (60), a lateral groove (3c) is formed in a fixing metal (3) in the direction intersecting the inclining direction of the fixing surface perpendicularly, the head (30a) of a bolt (30) is slid and fitted in the lateral groove (3c), and the threaded portion (30b) of the bolt (30) is projected upward from the fixing metal (3) and fitted in the elongated hole (22) of the longitudinal material (2) before being secured in place.

Description

 Specification

 Solar cell module mounting structure

 Technical field

 The present invention relates to a technique for attaching a solar cell module to a roof or the like.

 Background art

 [0002] Conventionally, there are various construction methods for attaching a solar cell module including a solar cell substrate and a frame to a roof or the like.

 As an example, in a solar cell panel support device in which a solar cell panel is supported on a fixed object such as a roof of a building by a support metal fitting, the support metal fitting is divided into a support fixture on the solar cell panel side and a support metal fixture on the fixed object side. There is a structure in which one support bracket has a vertically long hole, the other support bracket has a horizontally long hole, and both support brackets are fixed with bolts that can be stopped through both holes (for example, Patent Document 1).

 [0003] Patent Document 1: JP-A-2005-290755

 Disclosure of the invention

 Problems to be solved by the invention

 [0004] However, the above-described conventional technology has a configuration in which a vertically long slot is formed in one metal fitting, and a horizontally long slot is formed in the other and is bolted through these holes. The mounting accuracy is affected by the degree of tightening of the bolts, and there is a problem that the two metal fittings may be displaced when tightening with the bolts, making it difficult to make fine adjustments. In particular, vertical elongated holes are subject to vertical load, so the bolts are slightly loosened or holding the brackets! /, Even if the hands are loosened! I was strong.

 [0005] The present invention has been made to solve the above-described problem, and it is an object of the present invention to provide a solar cell module mounting structure that is simple and that allows easy adjustment of the mounting position of the solar cell module. Say it.

 Means for solving the problem

[0006] In order to achieve the above object, a solar cell module mounting structure that focuses on one aspect of the present invention is a mounting structure for mounting a solar cell module on a mounting surface such as a roof. Thus, a fixing bracket having a transverse groove formed in a direction substantially perpendicular to the inclination direction of the mounting surface, and fixed on the mounting surface by the fixing bracket, and formed in the inclination direction of the roof mounting surface at the center thereof. A longitudinal member having a longitudinally long hole formed therein, the large-diameter portion of the head of the bolt is slid and fitted into the lateral groove, and the threaded portion of the bolt is protruded upward from the fixing bracket. When fitting and fixing in the elongated hole of the longitudinal member, the bolt is slid along the lateral groove and the longitudinal member is moved along the elongated hole to adjust the mounting position of the longitudinal member. It is characterized by.

[0007] The vertical member is formed with an engaging portion. The upper end portion of the solar cell module may be hooked on the engaging portion, and the solar cell modules adjacent in the vertical direction may be connected to each other. .

 Further, the mounting surface may be a flat roof.

 The invention's effect

 [0008] According to the present invention, the number of components is small, the solar cell module can be easily mounted, and the mounting position can be easily adjusted.

 BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an example of a solar cell module to which the present invention is applied will be described with reference to the drawings.

 FIG. 1 shows a state in which a plurality of solar cell modules 1 that are applicable to the present embodiment are arranged on a flat roof 60.

 The solar cell module 1 is arranged on one surface on the roof 60, and each solar cell module 1 is attached such that the upper end portion on the ridge side is raised from the lower end portion on the eave side.

 [0010] On the roof or the like to which the solar cell module 1 is attached, as shown in FIG. 5, the solar cell module 1 is fixed on the roof 60 by the vertical member 2 fixed on the roof 60 by the fixing bracket 3.

As shown in FIG. 6, the fixtures 3 are attached in a row at predetermined intervals along an inclined surface on the roof 60 by screws. The fixing bracket 3 includes a mounting portion 3a formed on the left and right as a single plate is bent, and a vertical material holding portion 3b formed so as to rise from the mounting portion 3a to the left and right. A groove 3c formed by the material holding portion 3b, and an engaging portion 3d protruding from the upper end of the vertical material holding portion toward the inside of the opening of the groove 3c, and An opening is formed at the upper end. The groove 3c is a horizontal groove formed in a direction substantially orthogonal to the inclination direction of the roof 60, which is the mounting surface of the solar cell module 1. The width of the groove 3c is larger than the diameter of the threaded portion 30b of the bolt 30 for fixing the vertical member 2, and smaller than the diameter of the head 30a forming the large diameter portion of the bolt 30. As a result, the bolt 30 is mounted by inserting its head 30a into the fixing bracket 3 by sliding the opening force of the side surface of the groove 3c into the fixing bracket 3, so that the screw portion 30b of the bolt 30 protrudes from above the fixing bracket 3. In this state, it will slide along the groove 3c. At this time, since the head 30a is hooked on the engaging portion 3d, it does not come off from the groove 3c, and only the screw portion 30b protrudes from the fixing bracket 3. In this state, the vertical portion 2 can be fixed by fitting the screw portion 30b into the elongated hole 22 of the vertical member 2 and fitting a nut to the protruding screw portion.

 As shown in FIG. 7, the vertical member 2 is formed by bending a member such as a galvanized steel plate, and is formed in a horizontally long hollow rectangular column shape having an open lower end. An engaging portion 21 and a long hole 22 are formed at the upper end portion of the longitudinal member 2. The engaging portion 21 is provided on the vertical member 2 at a predetermined interval (the vertical width force of the solar cell module 1 and the length obtained by subtracting the width of the joint portion llg). Thereby, when the solar cell module 1 is attached to the engaging part 21, the joint part llg of the upper solar cell module 1 of the solar cell module 1 adjacent to the upper and lower sides and the lower solar cell module 1 module The mounting part l ib overlaps. The engaging portion 21 is formed by cutting and raising the upper end portion of the longitudinal member 2 and projecting it upward. Therefore, the engaging portion 21 rises from the upper end surface of the vertical member 2 and opens upward (ridge side) so that a slight gap is formed between the upper surface of the vertical member 2. The long hole 22 is provided between the engaging portions 21, 21, and the bolt 30 from the fixing bracket 3 is passed through the long hole 22 and is tightened with a nut so that the vertical member 2 is fixed on the fixing bracket 3. It is supposed to be fixed to.

 By connecting a plurality of these vertical members 2, they are arranged on one side according to the size and shape of the roof 60, and the solar cell module 1 is supported by two vertical members provided in parallel.

On the upper surface of the lower end of the longitudinal member 2, a screw hole 23 for attaching the start cover 4 that covers the edge of the longitudinal member 2 is formed. If wind enters under the solar cell module 1 with the start cover 4, the solar cell module 1 will not be removed by the wind pressure. And force S.

 As shown in FIGS. 2 and 4, the solar cell module 1 includes a hollow frame-like frame 11 and a solar cell substrate 12 attached in the hollow frame of the frame 11.

 This solar cell module 1 includes a hollow frame 11, a CIS substrate, a back material 13 made of a weather-resistant film or the like covering the back of the CIS substrate, and a strengthening process for protecting the substrate on the substrate. Glass is arranged and these are thermocompression bonded with an adhesive to form one solar cell substrate 12.

 In this embodiment, the substrate is a force that uses a CIS solar cell substrate. The present invention is not limited to this, but a silicon crystal system (single crystal silicon, polycrystalline silicon) or an amorphous system (amorphous silicon) or There are no particular restrictions on the type of compound-based (CdTe, GaAs, etc.) solar cell substrate or organic solar cell substrate.

 A terminal box 15 and a cable 14 connected to the terminal box 15 are attached to the back surface of the solar cell substrate 12.

The frame 11 is for holding the solar cell substrate 12. At the upper and lower ends of the frame 11, attachment portions for attaching the frame 11 on the roof 60 are formed over the entire width direction of the frame!

 As shown in FIG. 3 (a), the mounting portion on the upper end side of the frame 11 includes a substrate support portion 1 la that sandwiches the solar cell substrate 12, and a flat plate that extends in the opposite horizontal direction from the substrate support portion 1 la. -Shaped module mounting part l ib, a plate-like column part 11c formed perpendicularly extending from the module mounting part l ib to the mounting surface side, and the lower end part of the column part 11c so as to be orthogonal to the column part 11c A plate-like engaging portion 1 Id and a base portion 1 le formed in the above are formed in the body.

 The substrate support portion 11a is a portion that sandwiches the solar cell substrate 12, and has a shape having an opening on the hollow portion side of the frame 11 as shown in FIG. 3 (a). The upper end of the frame is fitted and fixed to the frame 11 by bonding with an adhesive or the like.

The module mounting portion l ib is provided with four holes 11H as shown in FIG. 2 (a). The holes 11H are provided symmetrically at equal intervals with respect to the center C in the width direction of the frame 11, and are formed at positions L and 2L away from the center C in the width direction, respectively. Further, as shown in FIG. 2 (c), two holes 11M are formed in the pillar portion ie. The holes 11M are provided at symmetrical positions with respect to the center C in the width direction of the frame 11, that is, at positions L from the center C, respectively. This hole 11M is a hole for pulling out the cable 14 for transmitting the electric power generated by the solar cell substrate 12 to the outside.

 In this example, the position force S of the hole 11M corresponds to the position of the hole 11H, but the position of the hole 11M for pulling out the cable 14 does not necessarily correspond to the position of the hole 11H. Absent.

 The engaging portion id is formed to extend from the pillar portion 11c toward the inside of the frame, and is formed to open to the eave side with the solar cell module 1 attached. When the solar cell module 1 is attached to the longitudinal member 2, the engaging portion l id is adapted to engage with the engaging portion 21 of the longitudinal member 2.

 The base portion l ie extends from the column portion 11c toward the outside of the frame, and the upper end portion of the solar cell module 1 is fixed on the vertical member 2 by pressing the base portion l ie with a pressing metal. It has become.

 The lower mounting portion of the solar cell module 1 is, as shown in FIG. 3 (b), a substrate support portion 1 lj for mounting the substrate 12, and a plate-like shape extending vertically downward from the substrate support portion 1 lj. The column portion 1 If and the junction portion 1 lg extending from the lower end portion of the column portion 1 If to the outside of the frame 1 and joining to the adjacent solar cell module 1 are formed into a body!

 The substrate support portion l lj is a portion that sandwiches the solar cell substrate 12, and has a shape having an opening on the hollow portion side of the frame 11 as shown in the figure. Similarly to the substrate support portion 11a described above, the opening portion The upper end portion of the solar cell substrate 12 is fitted to the frame 11 and is fixed to the frame 11 by being bonded with an adhesive or the like.

The joint portion l lg is formed to extend from the column portion 1 If to the outside of the frame 11. As shown in FIG. 2 (a), the joint llg is provided with four holes llh at positions corresponding to the above-described holes 11H. That is, the hole l lh is also provided symmetrically with respect to the center C in the width direction of the solar cell module 1 as in the case of the hole 11H, and is formed at positions L and 2 L away from the center C in the width direction, respectively. Yes. This hole l lh has an opening on the lower end side of the joint l lg. It is a long hole. As a result, the joint part l lg is placed on the module mounting part 1 lb of the adjacent lower solar module 1, and the holes 11H and 1 lh are aligned and screwed together so that The solar cell module 1 can be fixed.

[0015] Next, an example of a method for attaching the solar cell module 1 which is particularly applicable to the present invention will be described with reference to the drawings.

 In this example, the solar cell module 1 is attached to the flat roof 60. First, as shown in FIG. 6 (a), the fixing bracket 3 is first attached on the roof 60. In this case, the screw hole of the fixing bracket 3 is positioned on the rafter of the roof 60, and a hole is drilled on the roof 60 with a drill.

 At this time, in order to prevent rainwater from entering through the hole, a waterproof sheet such as butyl rubber is sandwiched between the fixing bracket 3 and the roof surface after making the hole, and as shown in Fig. 6 (a), the fixing bracket 3 Screw in the screw holes and fix it on the roof 60, and apply waterproofing agent S around the fixing bracket 3 and the waterproof sheet such as butyl rubber.

 [0016] When the mounting of the fixing bracket 3 is completed, as shown in FIG. 6 (b), the head portion 30a of the bolt 30 is slid into the fixing bracket 3 by sliding the opening force on the side surface of the groove 3c. And install.

 As a result, the Bonoleto 30 can slide and move along the groove 3c, and its head 30a is hooked by the engaging part 30d, so it does not come off from the groove 3c, and only the threaded part 30b is the fixing bracket. It becomes a state protruding from 3.

 In this state, as shown in FIG. 7, the longitudinal member 2 is fixed by fitting the screw portion 30b into the elongated hole of the longitudinal member 2 and fitting the nut to the protruding screw portion 30b. At this time, with the longitudinal member 2 attached, it is possible to adjust the lateral position of the longitudinal member 2 by loosening the nut and moving the bolt 30 along the groove 3c. Further, the vertical adjustment can be performed by sliding the screw portion 30b along the long hole of the vertical member 2. Thereby, the attachment position of the solar cell module 1 can be adjusted vertically and horizontally. When the mounting position is determined, the longitudinal member 2 can be fixed by tightening and tightening the nut.

[0017] In addition, in order to arrange the vertical members 2 in a straight line in accordance with the width of the roof 60, the vertical members 2 are attached in a straight line according to the width of the roof 60 by fixing the vertical members 2 in a series. be able to . As a result, as shown in Fig. 5, a plurality of longitudinal members 2 are mounted in parallel on the roof 60. It will be in the attached state.

 Further, a start cover 4 is screwed onto the vertical member 2 as shown in FIG.

[0018] When the installation of the vertical member 2 and the start cover 4 is completed, the solar cell modules 1 are attached in order from the eaves side.

 In this case, as shown in FIG. 9, the solar cell module 1 is temporarily placed on the vertical member 2, and in this state, the solar cell module 1 is slightly shifted upward so that the engaging portion 1 le is moved to the vertical member 2. Hook on the engaging part 21.

 Then, the base portion l ie of the solar cell module 1 is pressed with a pressing metal fitting, and the solar cell module 1 is attached by screwing the pressing metal fitting.

At this time, the cable 14 is pulled out from the hole 11M, and the solar cell modules 1 adjacent to the left and right are connected in series. For example, the + side cable 14 is connected to the solar cell module 1 on the left side, and the side cable 14 is connected to the solar cell module 1 on the right side. Then, by connecting the cable 14 of the solar cell module 1 at the final end to the junction box via a current collecting cable (not shown), it is possible to transmit the power generated by the solar cell panel on the entire roof with the force S. Monkey.

 [0020] From this state, the solar cell modules 1 can be fixed to the entire roof by connecting and attaching the solar cell modules 1 adjacent to each other up and down further toward the building.

 [0021] In this way, when the vertical member 2 is fixed to the fixing bracket 3, with the vertical member 2 attached, the nut 30 is loosened and the bolt 30 is moved along the groove 3c. Force to adjust the position of the direction. In addition, the slanting direction (vertical direction) can be adjusted by sliding the screw portion 30b along the long hole of the vertical member 2. As a result, the mounting position of the solar cell module 1 can be adjusted in the vertical and horizontal directions, so that the mounting accuracy of the vertical member 2 can be improved with the force S.

 Brief Description of Drawings

 [0022] FIG. 1 is an overall view showing a state in which a solar cell module is attached to a roof, which is effective in the present invention.

 [FIG. 2] (a) Front view of a solar cell module which focuses on this embodiment.

(b) The right side view of the solar cell module which is effective in this embodiment. (c) The upper end top view of the solar cell module concerning this embodiment.

 FIG. 3 is a side view of the upper end portion of the frame of the solar cell module, which focuses on this embodiment.

 (b) The side view of the lower end part of the frame of the solar cell module which applies power to this embodiment. 4] A rear view of a solar cell module that is effective in this embodiment.

FIG. 5 is a plan view showing a state in which a vertical member according to the present embodiment is attached.

6] A perspective view showing the mounting of the fixing bracket according to this embodiment on the roof.

 (b) The perspective view which showed the place which attaches a volt | bolt to the fixed metal fitting which applies force to this embodiment. 7] A perspective view showing a state in which a vertical member is attached to the fixture according to the present embodiment. 8] A perspective view showing a process of attaching a start cover to a vertical member that is strong in this embodiment. 9] A side view showing the process of attaching the solar cell module to the embodiment. Explanation of symbols

 1 Solar cell module

 2 Longitudinal

 3 Fixing bracket

 3a Mounting part

 3b Vertical material holder

 3c groove

 3d engagement part

 4 Start Kano Kuichi

 11 frames

 11a Board support

 l ib Module mounting part

 11c Column

 l id engaging part

 l ie base

 l lf Column

 l lg joint

11] Board support 11H hole l lh hole

 12 Solar cell board

13 Back material

14 Cape Nore

15 Metaphysic

21

 Polo pp

 22 Slotted hole

 23 Screw holes

30 Bonoreto

30a head

 30b Screw part

60 roof

 S waterproofing agent

Claims

The scope of the claims  [1] A mounting structure for mounting a solar cell module on a mounting surface such as a roof, the mounting bracket having a lateral groove formed in a direction substantially perpendicular to the inclination direction of the mounting surface, and the mounting bracket And a vertical member formed with a long oblong hole formed in the central portion of the roof mounting surface in the inclined direction,  When sliding the large diameter part of the head of the bolt into the lateral groove and projecting the screw part of the bolt upward from the fixing bracket and fitting it into the elongated hole of the vertical member, Adjusting the mounting position of the longitudinal member by sliding the bolt along the lateral groove and moving the longitudinal member along the elongated hole;  A solar cell module mounting structure characterized by the above.  [2] The vertical member has an engaging portion, the upper end portion of the solar cell module is hooked on the engaging portion, and the solar cell modules adjacent vertically are connected to each other. The solar cell module mounting structure described. [3] The mounting surface is a flat roof,  The solar cell module mounting structure according to claim 1 or 2.