WO2008041463A1

WO2008041463A1 - Solar cell module

Info

Publication number: WO2008041463A1
Application number: PCT/JP2007/067866
Authority: WO
Inventors: Hiromune Nomura; Shigeru Tamaki
Original assignee: Showa Shell Sekiyu K. K.
Priority date: 2006-10-02
Filing date: 2007-09-13
Publication date: 2008-04-10
Also published as: TW200818521A; JP4125334B2; JP2008088685A

Abstract

[PROBLEMS] To provide a solar cell module which permits a plurality of solar cell modules to be arranged in grid or in zigzag, and can be fixed easily. [MEANS FOR SOLVING PROBLEMS] In the fixing structure of a solar cell module (1) for fixing a plurality of solar cell modules (1), fixing holes (110, 120) for coupling vertically adjoining solar cell modules are formed at the upper and lower ends of the solar cell module. The fixing holes (110, 120) at the upper and lower ends are formed at vertically corresponding positions laterally symmetrical with respect to the center C of the solar cell module in the width direction.

Description

Specification

Solar cell module

Technical field

[0001] The present invention is a technique for mounting a solar cell module on a mounting surface such as a roof, and in particular, the solar cell module can be freely arranged in a grid pattern or in a zigzag pattern. It relates to technology that can be deployed.

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, there is a construction method in which vertical members and cross members for fixing the solar cell module in a roof shape are arranged in a grid pattern, and the solar cell module is mounted on this. In addition, a method of attaching directly to the roof without using such vertical members is proposed! An example of this is a solar cell module in which a solar cell module frame is attached to each of the four sides of a rectangular solar cell module, the front hooking piece of the front side frame portion being engaged with the front fixing portion, and the rear fixing portion being left and right. It is placed on the roof tile in the direction and fixed with the fixing bracket. Also, when the next solar cell module is placed, the rear row of the two module units in the front row is placed in the rear row so as to straddle the module unit installed later with respect to the module unit installed earlier. Shift the module unit so that the front frame of the module unit at the top of the box is placed. In this case, with the rear fixture attached to the protruding side of the rear frame part of the rear row of module frames, the front hook side of the front frame portion is brought into contact with the rear hook side of the front row of module frames, and the rear row side There is a structure in which the rear fixing tool is mounted on a tile rail in the left-right direction and fixed with a fixing bracket (for example, Patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. 2004-263544

Disclosure of the invention

Problems to be solved by the invention

[0004] However, in the above-described conventional technology, when a solar cell module is arranged, the force S that can be arranged in a grid pattern, and depending on the structure of the roof, it is only necessary to arrange it in a grid pattern. It is necessary to arrange the positive battery modules in a staggered manner. In such a case, it is necessary to change the arrangement of the solar cell module. However, in the conventional solar cell module, the solar cell module is fixed after deciding how to arrange the solar cell module in advance. It was necessary to measure and arrange the position to perform.

For this reason, there is a problem that not only the number of parts increases but also the work efficiency of the construction deteriorates.

In addition, the positioning when installing the solar cell module is troublesome, and if the position of the hole is shifted, it cannot be installed easily!

[0005] The present invention has been made to solve the above-described problems. When a plurality of solar cell modules are arranged, the solar cells can be arranged in a grid pattern or a zigzag pattern! An object is to provide a battery module.

Means for solving the problem

[0006] In order to achieve the above object, one aspect of the present invention provides a solar cell module that includes a plurality of adjacent solar cell modules stacked on top of each other and connected to each other. The solar cell module has a mounting structure for mounting on the mounting surface, and the solar cell module has upper and lower ends formed with overlapping mounting portions, and the upper and lower mounting portions are respectively connected to the solar cells. The battery module is symmetrical with respect to the center of the width direction of the battery module, and mounting holes are formed at positions corresponding to the upper and lower sides.

[0007] In addition, the solar cell module hooks the engaging portion of the upper part of the solar cell module on the engaging piece provided on the vertical member provided along the inclination direction of the mounting surface, and is adjacent to the upper and lower sides. The solar cell module is attached by joining the attachment holes, and the attachment hole at the lower end of the solar cell module is a vertically long hole extending in the inclination direction of the attachment surface.

[0008] Further, the attachment hole in the lower end portion may be opened in the lower end surface.

Moreover, the said solar cell module may be arrange | positioned at the checkerboard shape or the zigzag form. The invention's effect

[0009] According to the present invention, when the solar cell modules are mounted in a grid pattern, they are mounted in a staggered pattern. In any of the cases, the installation work can be done with a force S that allows efficient installation work simply by arranging the vertical members.

In addition, since the mounting hole is a vertically long hole, it is possible to adjust the vertical displacement when the solar cell module is mounted. In particular, even when the position of the solar cell module is slightly shifted up and down with the engaging portion hooked to the engaging portion of the vertical member, the mounting hole is vertically long. Use force S to increase work efficiency and ease of positioning.

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 effective in this embodiment are arranged on the roof.

The solar cell modules 1 are arranged on one surface on the roof 30, and each solar cell module 1 is attached such that the upper end portion on the ridge side is raised above the lower end portion on the eave side.

On the roof 30 to which the solar cell module 1 is attached, as shown in FIG. 5, a fixing bracket 3 is attached, and a plurality of vertical members 2 are laid in parallel along the inclination direction of the roof 30. As shown in FIG. 6 (a), the fixing bracket 3 is attached on the roof with screws at a predetermined interval. The fixing bracket 3 is formed by bending a metal plate, one end of which is a bent portion that rises on the roof tile, and the other long plate portion is fixed on the roof by screws. In addition, a hole for passing the bolt is formed on the bent part rising from the roof tile, so that the vertical member 2 can be attached on the bent part by inserting the insertion bolt B through this hole. It is summer.

[0012] As shown in FIG. 6 (b), the vertical member 2 is formed of a zinc-plated steel plate or the like, and is formed in a vertically long rectangular column shape having an open lower end. An engaging piece 21 and a long hole 22 are formed at the upper end of the vertical member 2. The engagement pieces 21 are provided on the vertical member 2 at a predetermined interval (interval of the length obtained by subtracting the width of the joining portion llg from the vertical width of the solar cell module 1). Thereby, when the solar cell module 1 is attached to the engagement piece 21, the joint portion 11g and the lower side of the solar cell module 1 on the upper side of the solar cell module 1 adjacent to the upper and lower sides The module mounting portion l ib of the solar cell module 1 is overlapped. The engagement piece 21 is formed by protruding the upper end portion of the longitudinal member 2 so as to protrude upward. Therefore, the engagement piece 21 rises from the upper end surface of the longitudinal member 2 and opens upward (toward the building side) so that a slight gap is formed between the engagement piece 21 and the upper surface of the longitudinal member 2.

The long hole 22 is provided between the engagement pieces 21, 21, and the vertical member 2 is mounted on the fixing metal 3 by passing the insertion bolt from the fixing metal 3 through the long hole 22 and tightening it with a nut. Fixed to. A plurality of these vertical members 2 are connected to each other according to the size and shape of the roof, and the solar cell module 1 is supported by two vertical members provided in parallel. A screw hole 23 for attaching the start cover 4 is formed on the upper surface of the lower end of the vertical member 2. By attaching the start cover 4, the appearance is improved, and when wind enters the solar cell module 1, the wind pressure prevents the solar cell module 1 from being detached.

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 as shown in FIGS.

The solar cell substrate 12 includes a CIS solar cell substrate, a back material 13 made of a weather resistant film or the like covering the back surface of the substrate, and a tempered glass for protecting the substrate on the substrate. Is formed by thermocompression bonding with an adhesive.

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 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 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-shaped 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 substantially perpendicular to the column part 11c A plate-like engaging portion 1 Id and a base portion 1 le formed in this manner are formed on 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. The upper end portion of the plate 12 is fitted and fixed to the frame 11 by being bonded with an adhesive or the like.

The module mounting portion l ib has four holes 110 as shown in FIG. 2 (a). The holes 110 are provided symmetrically at equal intervals with respect to the center C in the width direction of the frame 11. The hole 110b and the hole 110c are formed symmetrically at a distance L from the center C in the width direction, and the hole 11 Oa and the hole 110d are formed symmetrically at a position 2L away from the center in the width direction. In this example, the solar cell module 1 is equally divided into six in the width direction, and holes 110a to 110d are formed at a distance (= distance L) of 1/6 of the width from the center C in the width direction. Then, on the module mounting portion 11b, the mounting portion at the lower end of the upper solar cell module 1 adjacent to the solar cell module 1 is placed, and is attached to the hole 110 with a screw or the like. It has become.

Further, as shown in FIG. 2 (c), two holes 11M are formed in the column portion 11c. Each of these holes 11M is provided at a distance L from the center C. This hole 11M is a hole for drawing out the cable 14 for transmitting the electric power generated by the solar cell substrate 12 to the outside.

In this embodiment, the position of the hole M corresponds to the positions of the holes 110b and 110c! /, And the force required. The position of the hole M does not necessarily correspond to the position of the hole 110! /, .

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 lie extends from the column portion 11c toward the outside of the frame, and the upper end portion of the solar cell module 1 is vertically supported by pressing the base portion lie with the pressing metal 50. It is designed to be fixed on material 2.

[0015] In addition, as shown in Fig. 3 (b), the lower mounting portion of the solar cell module 1 is extended to a substrate support portion 1lj for mounting the substrate 12, and vertically downward from the substrate support portion 1lj. The plate-like pillar 1 If and the joint 1 lg extending from the lower end of the pillar 1 If to the outside of the frame 1 and joined 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 l lg extends from the pillar 1 If to the outside of the frame 11 and is formed. As shown in FIG. 2 (a), the joint 120 is provided with four holes 120 at positions corresponding to the holes 110 described above. That is, the hole 120 is also provided symmetrically with respect to the center C in the width direction of the solar cell module 1 as with the hole 110, and the holes 120b, 120c, and 2L are located at a distance L from the center C in the width direction. The holes 120a and 120d are formed at the distant positions. As a result, the hole 120 is provided at a position corresponding to the hole of the upper end portion 110.

As shown in FIG. 2 (a), the hole 120 is formed in a vertically long shape extending in the inclined direction of the roof 30 to which the solar cell module 1 is attached, and has an opening at its lower end surface. As a result, the joint part l lg is placed on the module mounting part l ib of the adjacent lower solar module 1 and the holes 110 and 120 are aligned and screwed together so that The solar cell module 1 can be fixed. At this time, since the hole 120 is a vertically long hole, the vertical displacement of the solar cell module 11 can be adjusted. In particular, even when the position of the solar cell module 1 is slightly shifted up and down in a state where the engagement portion id is engaged with the engagement portion 21, the hole 120 is a vertically long hole. The working efficiency of easily positioning the holes 110 and 120 can be improved.

[0016] Next, an example of a method for attaching the solar cell module 1 according to the present invention will be described with reference to the drawings.

In this example, the solar cell module 1 is attached to the tile roof.

First, as shown in FIG. 6 (a), first, the fixing bracket 3 is attached on the roof. In this case, the position where the fixing bracket 3 is to be attached is determined, the tile at that portion is removed, and the fixing bracket 3 is attached to the rafter τ via the roof base plate. The position of this rafter τ is confirmed by the wood slide ice. In the part where there is no rafter T, the fixing bracket 3 is attached on the reinforcing plate S passed between the rafter T and the rafter T, and the roof tile is put back and fitted.

When the mounting of the fixing bracket 3 is completed, the vertical member 2 is attached to the fixing bracket 3 as shown in FIG. 6 (b).

For this attachment, the insertion bolt is passed from the fixing bracket 3 side to the long hole 22 side of the vertical member 2 and fixed from the top of the vertical member 2 with a washer and nut.

In order to arrange the vertical members 2 in line with the width of the roof, the vertical members 2 can be attached in a straight line according to the width of the roof by fixing multiple vertical members 2 connected together. As a result, a plurality of longitudinal members 2 are mounted in parallel on the roof.

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. 8, the solar cell module 1 is temporarily placed on the vertical member 2, and the solar cell module 1 is slightly shifted upward in this state, whereby the engaging portion 1 Id 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. And, by connecting the cable 14 of the solar cell module 1 at the final end to the connection box 60 via a current collecting cable (not shown), it is possible to transmit the electric power generated by the solar cell module of the entire roof. .

[0020] When the solar cell module 1 is attached to the ridge side further from this state, the solar cell module 1 to be attached is first temporarily placed on the vertical member 2 as shown in FIG. 9 (a). . Then, the solar cell module 1 is slightly shifted upward as shown in FIG. 9 (b), and the solar cell module 1 is returned downward as shown in FIG. Hook at joint 21. At this time, the engaging portion 21 is provided at an interval of the width of the solar cell module 1 (the width from the tip of the module mounting portion 1 lb to the joining portion 1 lg minus the width of the joining portion 1 lg). It has been. Therefore, the joint portion l lg of the upper (building side) solar cell module 1 to be mounted on the module mounting portion 1 lb of the lower side (eave side) solar cell module 1 that has been previously mounted overlaps.

In this state, as shown in FIG. 10, the holes 110 of the lower solar cell module 1 already installed are aligned with the holes 120 of the upper solar cell module 1 to be installed. Secure with screws.

It is to be noted that the solar cell module 1 can be fixed to the vertical member 2 by pressing the base portion ie with the pressing metal 50 and screwing the pressing metal 50.

When this positioning is performed, the hole l lh can be aligned by moving the upper solar cell module 1 with the engagement portion l id engaged with the engagement portion 21, which is simple and efficient. Can be positioned.

[0022] Similarly to the case where the first solar cell module 1 is attached, the capillaries 14 are pulled out from the holes 11M, and, for example, the solar cell modules 1 adjacent to the left and right are connected in series. The cable 14 of the solar cell module 1 at the final end is connected to a current collecting cable that collects electric power from a plurality of solar cell modules 1, and is connected from the current collecting cable to a V and a current collecting device (not shown). As a result, the power generated by the solar cell modules on the entire roof can be collected and transmitted.

Then, as shown in FIG. 11, solar cell modules 1 are attached in order from the eave side to the ridge side in the same procedure as described above, and solar cell module 1 is attached to the entire roof.

The installation work is completed.

Next, an example in which the solar cell modules 1 are arranged in a staggered manner will be described with reference to FIGS. 12 and 13.

The examples of FIGS. 12 and 13 are examples in which the solar cell modules 1 are arranged in a staggered pattern with the width shifted for each row. In this case, since the holes 110 and 120 are formed symmetrically at a distance of 2L from the center in the width direction of the solar cell module 1, the positions of the holes 110 and 120 are the same. It will correspond.

Specifically, when solar cell module 1 is mounted on solar cell module 1, holes 110a and 110b on lower solar cell module 1 correspond to holes 120c and 120d on solar cell module 1 on the upper left. Therefore, these can be positioned and fixed with screws. Similarly, since the holes 110c and 110d of the lower solar cell module 1 correspond to the holes 120a and 120b of the upper right solar cell module 1, they are positioned and fixed with screws. .

Thus, the solar cell modules 1 for staggered arrangement can be used as they are without having to bother.

[0024] Thus, by placing the joint l lg on the module mounting portion l ib of the adjacent lower solar module 1, the positions of the hole 110 and the hole 120 are aligned and screwed, Adjacent upper and lower solar cell modules 1 can be mounted in either a grid pattern or a staggered pattern.

Further, since the hole 120 is a vertically long hole, the force S for adjusting the vertical displacement of the solar cell module 11 can be adjusted. In particular, even when the position of the solar cell module 1 is slightly shifted up and down in a state where the engaging portion id is engaged with the engaging portion 21, the hole 120 is a vertically long hole. In addition, it is possible to increase the working efficiency for easy positioning of the hole 110 and the hole 120.

[0025] It should be noted that the solar cell module 1 can be mounted anywhere, not on the roof.

Brief Description of Drawings

[0026] 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 (a) A side view of the upper end portion of the frame of the solar cell module that applies power to 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) An exploded perspective view showing a mounting state of the fixing bracket according to the present embodiment.

(b) The perspective view which showed the process at the time of attaching a vertical member to a fixing metal fitting.

7] A perspective view showing a process of attaching a start cover to a vertical member that is strong in this embodiment. 8] A perspective view showing a place where the solar cell module is attached to the vertical member and the start cover which are used in this embodiment.

9] A side view showing the process of attaching the solar cell module to the embodiment. 10] An exploded perspective view of the solar cell module according to the present embodiment in an attached state. 11] A side view showing a state in which the solar cell module is attached to the embodiment. 12] A perspective view showing an example in which the solar cell modules are arranged in a staggered manner on the roof according to this embodiment.

13] A perspective view showing an example in which the solar cell module is staggered in this embodiment.

Yes

Explanation of symbols

1 Solar cell module

2 Longitudinal

3 Fixing bracket

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 l lh hole

11M hole

12 Solar cell board

13 Back material

14 Cape Nore

15 Terminal box

21 Engagement piece

22 Slotted hole

23 Screw holes

30 roof

50 Presser bracket

60 Junction box

110

110a hole

110b

110c hole

l lOd

120

120a hole

120b

120c hole

120d

B bolt

K Kizuri

M,

S Reinforcing plate

T rafter

Claims

The scope of the claims

[1] An attachment structure for attaching a plurality of solar cell modules on an attachment surface by overlapping one end portions of adjacent solar cell modules and connecting the solar cell modules to each other,

The upper and lower ends of the solar cell module are formed with mounting portions that overlap each other.

Mounting holes are formed in the upper and lower mounting portions, respectively, symmetrically with respect to the center in the width direction of the solar cell module and at positions corresponding to the upper and lower sides.

A solar cell module characterized by that.

[2] In the solar cell module, the engaging portion provided on the vertical member provided along the inclination direction of the mounting surface is hooked to the engaging portion at the upper part of the solar cell module and the solar cells adjacent to each other vertically It is installed by joining the battery module with the above mounting holes,

The mounting hole at the lower end of the solar cell module is a vertically long hole extending in the inclination direction of the mounting surface.

The solar cell module according to claim 1.

[3] The mounting hole at the lower end opens to the lower end surface.

The solar cell module according to claim 2.

[4] The solar cell modules are arranged in a grid pattern or a staggered pattern,

The solar cell module according to any one of claims 1 to 3.