JP2015052235A - Grounding conductive member and solar cell module grounding structure using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grounding conductive member for providing a grounding structure minimizing the number of members and enabling simple execution of work, and a solar cell module grounding structure using the same.SOLUTION: A grounding conductive member 1, which is attached onto a supporting material 2 for supporting an edge of each of adjacent solar cell modules 3 and 3, includes a locking part 12 capable of being locked to a raised part 211 provided on the supporting material 2 in an arrangement state, and a base plate part 11 that is provided along a top surface 21 of the supporting material 2 and that comprises an upward protrusion 111.

Description

  The present invention provides a grounding conductive member for providing a grounding structure capable of minimizing the number of members and simplifying work, a grounding structure grounding conductive member for a solar cell module using the same, and a solar cell using the same The present invention relates to a grounding structure for a battery module.

The proposal of patent document 1 is made | formed regarding the earth process between adjacent solar cell modules.
In the technology described in Patent Document 1, the ground members 61 and 62 are screwed to the solar cell modules arranged on the water side and water side of the horizontal beam member (20), respectively, and the frame is placed on the ground member. The module frame and the crosspiece member are made conductive by arranging the body.

JP 2012-149402 A

  However, in the configuration of Patent Document 1, since it is necessary to prepare two types of ground members, the number of parts is increased, and member management is troublesome. Moreover, since it is performed by screwing, the operator has to carry the tool, leading to a burden on the operator. Furthermore, in order to fix the grounding material to the long bar member at a constant interval, positioning of the mounting location (interval according to the module width: the horizontal direction in FIG. 7) must be performed, and work is troublesome. It was such a thing.

  Therefore, an object of the present invention is to propose a grounding conductive member for minimizing the number of members and providing a grounding structure capable of easily performing the work, and a solar cell module grounding structure using the grounding conductive member.

  The present invention has been proposed in view of the above, and is a grounding conductive member that is mounted on a support member that supports the respective edges of adjacent solar cell modules, and is provided on the support member in an installed state. The present invention relates to a conductive member for grounding, comprising: a locking portion that can be locked to the raised portion; and a substrate portion that has an upper protrusion along the upper surface of the support member.

  The present invention also proposes a grounding conductive member characterized in that, in the grounding conductive member, the engaging portion is formed in a groove shape through which an upright portion formed in the support material can be inserted.

  Furthermore, the present invention is a grounding structure of a solar cell module facing on a support material using the grounding conductive member, wherein the support material has an upright portion that abuts against a side surface of the solar cell module in an installed state. A grounding structure for a solar cell module is also proposed, characterized in that the grounding conductive member is locked to a support material so that the projection of the grounding conductive member is located on the back surface of the frame body of the solar cell module. Is.

The grounding conductive member of the present invention has the following characteristics.
-It is one member with respect to an adjacent solar cell module.
A grounding conductive member is locked to an upright portion provided on a support member that supports the solar cell module.
-A tool for the conductive member for grounding is not required for locking to the standing part.
Therefore, in the present invention, it is possible to provide a grounding structure that can minimize the number of members and can easily perform the work.
Furthermore, since the grounding conductive member is attached to a configuration (location: upright portion) that has nothing to do with attachment (positioning) of the support member or fastening of the fixture, the work can be performed efficiently. That is, since it is not necessary to perform the positioning at the same time, the ground mounting position can be determined later, and the work can be performed flexibly.
On the other hand, for example, when the members constituting the ground installation location and the non-installation location are different, it is necessary to specify the installation location in advance, and the overall work efficiency is reduced. Moreover, providing grounding at all locations leads to waste of members.

  Further, when the locking portion is formed in a groove shape through which the upright portion formed in the support material can be inserted, the upright portion can prevent the grounding conductive member from being displaced.

  Furthermore, the grounding structure of the present invention using the grounding conductive member can minimize the number of members and perform the work easily.

(A) Front view showing a grounding structure using the grounding conductive member of the first embodiment of the present invention, (b) a side view thereof, (c) a plan view thereof, (d) an enlarged view of the grounding conductive member. It is the shown front view. (A) Front view showing a state where the grounding conductive member of the first embodiment is attached to the support material, (b) A side view thereof, (c) A perspective view thereof, (d) Grounding of the second embodiment on the support material The front view which shows the state which attached the electrically conductive member, (e) The side view, (f) The perspective view, (g) The front view which shows the state which attached the electrically conductive member for grounding of 3rd Example to a support material, (H) The side view, (i) The perspective view. (A) Front view showing a state in which the grounding conductive member of the fourth embodiment is attached to the support material, (b) A side view thereof, (c) A perspective view thereof, (d) Grounding of the fifth embodiment on the support material It is the front view which shows the state which attached the electroconductive member for operation, (e) The side view, (f) The perspective view. (A)-(c) It is a three-plane figure which shows the variation of an earth | ground protrusion.

The conductive member for grounding according to the present invention is a conductive member for grounding that is mounted on a support material that supports the respective edges of adjacent solar cell modules, and (A) an upright portion provided on the support material in the installed state. And (B) a substrate portion that is provided along the upper surface of the support member and has an upward protrusion.
Then, the grounding conductive member can be engaged with the support member so that the projection of the grounding conductive member is located on the back surface of the frame body of the solar cell module, thereby providing a grounding structure.

(A) Locking portion The locking portion is a portion that can be locked to the standing portion provided on the support material in the installed state, and can position the conductive member for grounding, which interferes with the position regulation of the solar cell module. If not, there is no particular limitation on fitting and locking. In the illustrated embodiment to be described later, the support member is locked by providing an opening through which the upright portion of the support member can be inserted. Moreover, the notch which a standing part fits may be sufficient.

(B) Substrate Part The substrate part is a part provided with a protrusion along the upper surface of the support material and taking an upward protrusion, that is, a ground (earth).
The shape of the projection is not limited as long as it can damage the coating film (alumite treatment) of the frame (frame body) of the solar cell module. The shape of the projection is pushed up to the upper surface side mainly by burring or punching. What is formed or what is formed by cutting and raising (nail) or the like is selected. As a rough shape, a sharp convex shape, a small protrusion, a sharp-angled claw portion, or the like is selected.

(C) Storage part A storage part may be provided as a part which is located below the substrate part and stores (holds) the wiring cable of the solar cell module. The opening for arranging the wiring cable in the housing portion may be formed on the front side, the side side, or the back side, and the shape is not particularly limited as long as the wiring cable does not fall out. For example, in order to prevent irradiation of sunlight from the opening, the opening (part) may have a shape that can be elastically deformed, or the opening (part) may be deformed with a tool or the like after the wiring cable is provided. . Such a mode is desirable particularly when the opening is provided on the surface side.

(D) Support material This support material is a member which supports each edge of an adjacent solar cell module, and is a member provided with the standing part which the edge of a solar cell module contacts.
The support material may be a standard material (piece material) or may be continuous in the vertical direction (flow direction) and the horizontal direction (shift direction).
Further, the upright portion of the support material may be provided integrally with the support material or may be provided with a separate member, and the spacing is kept constant when the solar cell module is arranged. I just need it. In the illustrated embodiment (first embodiment), a part of the upper surface portion is cut and raised to form an upright portion. Further, the upright portion may be formed in a vertical shape or in an inclined shape.

In addition, about the object which attaches this support material, it does not limit at all, You may make it attach to what kind of foundation | substrate or an existing roof.
In the illustrated embodiment to be described later, an example is shown in which a support material is attached to an existing roof (exterior surface) having a convex portion, and this convex portion is formed by an external material constituting the external surface. And if it is the exterior surface of the structure where a mountain-shaped part and a valley-shaped part continue, a mountain-shaped part may be pointed out, and it may be newly built or existing. In addition, as shown in the illustrated embodiment to be described later, even if a convex portion is formed by raising the side edge of the exterior material substantially vertically at the top of the protruding portion which is a mountain-shaped portion, a cap is provided on the outside thereof. It may be formed by arranging a cover material in the form of a material, or may be formed by polymerizing the other side edge on one side edge, and the configuration is not particularly limited.

  The first embodiment of the grounding structure using the grounding conductive member (hereinafter referred to as grounding metal fitting) 1 of the present invention shown in FIG. 1 and FIGS. Frame of solar cell module 3 using ground metal fitting 1 having locking portion 12 that can be locked to raised portion 211 and substrate portion 11 that has projection 111 upward along upper surface 21 of support material 2. The grounding metal 1 is locked to the support member 2 so that the protrusions 111 of the grounding metal 1 are located on the back surfaces of the bodies 31A and 31B.

In the ground metal fitting 1 of the first embodiment, as shown in an enlarged view in FIG. 1 (d), the substrate portion 11 has a horizontal piece disposed in a substantially horizontal state in the arrangement state, and the horizontal piece is inclined. And a downwardly inclined piece folded downward. In addition, a lateral slit-like opening is provided as a locking portion 12 in the fold line (boundary between the horizontal piece and the outward inclined piece) of the substrate portion 11, and the horizontal piece has two protrusions on the front and rear sides. 111 is formed in a total of four places.
The ground metal fitting 1 is made from a plate-like material formed in a substantially square shape.

The support material 2 is a member that is fixed to the convex portion 51 formed by the exterior material 5 </ b> A constituting the exterior surface 5, and is a first support material disposed on one side (= right side) of the convex portion 51. 2A, a second support member 2B pivotally attached to the first support member 2A and disposed on the other (= left side) of the convex portion 51, and an upright position above the convex portion 51. The mounting bolt 2C is arranged and penetrates through the first support member 2A and has an end supported by the second support member 2B. The fastening nut 2D is screwed into the mounting bolt. The first support material 2A and the second support material 2B are both regular materials (aluminum extruded materials), and are formed so that the combined state has a substantially bowl-shaped cross section, and a space 20 is formed inside. It is a configuration.
Further, the first support member 2A is formed with a concave pivot support portion 22 that forms a shaft portion for pivotally pivoting with the second support member 2B, and the second support member 2B includes A convex pivot portion 23 is formed which forms a shaft portion for pivotally mounting on the first support member 2A. Further, the mounting bolt 1C is a hexagonal bolt, and the fastening nut 1C is a hexagonal nut.

The support material 2 in the illustrated embodiment is a substantially bowl-shaped top portion and an upper surface 21 that supports the solar cell modules 3 and 3, and an inclined support surface 24 in which one (left) side edge is folded downward. And a through hole 241 is provided in the inclined support surface 24. The inclined support surface 24 is configured to support the back surface of the outwardly downward inclined piece serving as the upper surface portion 11 and the covering portion 12 of the wiring cable support material 1. The upright portion 211 is an outwardly upwardly inclined piece extending on the upper surface 21, and can be said to be a piece that is cut and raised from below at the approximate center of the inclined support surface 24.
Then, with the first support member 2A and the second support member 2B pivotably attached so as to sandwich the convex portion 51 from the left and right, the fastening nut 2D is attached to the attachment bolt 2C and tightened. Thus, by integrating the support material 2, the first support material 2 </ b> A and the second support material 2 </ b> B can be locked to the convex portion 51, and the mounting bolt 2 </ b> C can be raised above the convex portion 51.

  Further, the exterior surface 5 to which the support material 2 is attached has a configuration in which a mountain-shaped portion and a valley-shaped portion along the flow direction are continuous, and the exterior material (vertical facing exterior material) 5A is formed on the top of the mountain-shaped portion. The convex portions 51 are formed, and the end portions of the side edge portions 52, 52 of the left and right exterior materials 5A, 5A are raised substantially vertically so that they are aligned and superposed. Formed.

The solar cell module 3 used in the wiring structure shown in FIG. 1 has a configuration in which frames 31a and 31a are attached to the edges in the flow direction, and frames 31b and 31b are attached to the edges in the left-right direction. , 31b is an aluminum molding material whose surface is anodized (insulating).
Between the solar cell modules 3 and 3 adjacent to the left and right, a pressing member 4 that presses and holds the upper end edge of each solar cell module 3 is disposed. The pressing member 4 has pressing portions 41, 41 on the left and right sides, and the mounting bolt 1C is inserted into a hole formed in the central lateral piece, and the mounting nut 4b is tightened from the upper end thereof to fix the solar cell modules 3, 3 to each other. It can be pressed and held from above.

FIGS. 2A to 2C show a state in which the engaging portion (opening portion) 12 of the ground metal fitting 1 having the above-described configuration is inserted and attached to the standing portion 211 of the supporting member 2. The grounding metal fitting 1 may be attached before the placement of the support member 2 or after the support material 2 is placed on the exterior surface 5.
In any case, in order to place the solar cell modules 3 and 3 adjacent to each other in the flow direction on the protrusions 111 and 111 of the ground metal fitting 1, the protrusion 111 is pressed against the lower surface of the solar cell module 3 and anodized on the surface. The layer can be damaged and grounding can be easily performed.

  Thus, since the earthing | grounding metal fitting 1 of this invention is made to latch to the standing part 211 provided in the support material 2, it can be attached to the adjacent solar cell modules 3 and 3 by one member, It is possible to provide a grounding structure that does not require a tool, minimizes the number of members, and facilitates work.

Moreover, in this 1st Example, since the horizontal slit-shaped opening part which is the latching | locking part 12 is inserted and attached to the standing part 211 of the support material 2, it does not move at the time of arrangement | positioning of the solar cell module 3. FIG. The mounting state can be maintained.
In addition, since the solar cell modules 3 and 3 are mounted on the grounding metal fitting 1 after the solar cell modules 3 and 3 are disposed, screws or the like are attached to the horizontal pieces or the outward downward inclined pieces constituting the substrate unit 11. It may be driven and fixed to the support material 2 on the back side, and the fixing method is not particularly limited.

2D to FIG. 2F, the ground metal fitting 1II according to the second embodiment of the present invention forms a notch having substantially the same width as the upright portion 211 on the outward downward inclined piece constituting the substrate portion 11ii. The engaging portion 12ii is cut out from below, and the engaging portion 12ii is attached to the upright portion 211 provided on the support member 2 in a fitting manner from above.
2 (g) to (i), the ground metal fitting 1III according to the third embodiment of the present invention forms a cut having substantially the same width as the upright portion 211 on the outward downward inclined piece constituting the substrate portion 11iii. A piece that is cut and raised from below is 112, and a notch portion is a locking portion 12iii. The locking portion 12iii is fitted to the rising portion 211 provided on the support member 2 from above. It is locked and attached. The standing piece 112 provided on the ground metal fitting 1III contributes to the position regulation of the solar cell modules 3 and 3 in the same manner as the standing piece 211 of the support member 2.

  3 (a) to 3 (c), the ground metal fitting 1IV of the fourth embodiment of the present invention has a locking portion 12iv which is a lateral slit-like opening as in the first embodiment. The standing portion 211 provided on the storage portion 13 can be inserted and locked, and in the installed state, is positioned below the substrate portion 11 to store the wiring cable of the solar cell module 3 (not shown), and the storage portion 13. And a covering portion 14 wider than the interval between the opposed solar cell modules 3 and 3. The covering portion 14 is a substantially square-shaped portion composed of the outward downward inclined piece constituting the substrate portion 11 and an inward inclined piece obtained by folding the outward downward inclined piece inward. It refers to the space on the back side of the covering portion 14 which is the substantially square-shaped portion, and the storage portion 13 is formed in a substantially bag shape with the covering portion 12 formed as described above. Further, an inwardly inclined piece 15 that is further bent inward and upward is extended at the lower end of the inwardly inclined piece.

Since the ground metal fitting 1IV of the fourth embodiment can cover the wiring cable and can be stored in the storage portion 13, it can suppress the drooping of the wiring cable and protect it from sunlight (ultraviolet rays) to prevent deterioration. Can do. Therefore, the PF pipe that has been used to protect the distribution cable, the binding band and the support that have been used to fix the distribution cable, and the member that combines the roles of fixing screws into one member. it can.
Moreover, this grounding metal fitting 1IV can be performed in a separate process from wiring cable connection work that requires a great effort, such as tilting the solar cell module 3, and the work itself does not require any special techniques or tools. Since it can be easily attached to the support material 2, it exerts the effects of reducing the burden on the installer, reducing work mistakes such as forgetting to perform work, and reducing variations in construction quality due to the skill of the operator. Further, in the fourth embodiment, a mechanism that can be easily stored in the storage portion 13 by simply lifting the inwardly inclined piece 15 with a wiring cable from below (with the locking portion 12iv inserted through the upright portion 211). Since it is possible to widen the opening), the wiring cable can be protected at an appropriate position very easily without performing any troublesome operation at all.

  3 (d) to 3 (f), the ground metal fitting 1V of the fifth embodiment of the present invention covers the upright portion 211 provided on the support member 2 by the locking portion 12v from above, that is, fitted from above. It is the structure made to latch.

  FIG. 4 shows a variation of the ground protrusion, and the protrusion 112 shown in FIG. 4A is an aspect of the first embodiment, and is formed by opening a hole in the upper surface portion 11 from the back surface side. The protrusion 112 ′ shown in FIG. 4B is a form formed by bending the edge of the upper surface portion 11 ′, and the protrusion 112 ″ shown in FIG. This is an aspect in which an upright (inclined) claw piece is formed by punching (pressing) the upper surface portion 11 ″ from the back surface side.

1 Conductive member for grounding (grounding bracket)
11 Substrate part 111 Protrusion 12 Locking part (opening part)
DESCRIPTION OF SYMBOLS 13 Storage part 2 Support material 2A 1st support material 2B 2nd support material 21 Upper surface 211 Standing part 22 Pivot support part 23 Pivot part 3 Solar cell module 31a, 31b Frame 4 Holding member 41 Holding part 5 Exterior surface 5A Exterior material 51 Convex part 52 Side edge

Claims (3)

A grounding conductive member attached on a support material supporting each edge of adjacent solar cell modules,
An electrically conductive member for grounding, comprising: an engaging portion that can be engaged with an upright portion provided on a support material in a disposition state; and a substrate portion that has an upper protrusion along the upper surface of the support material.   The grounding conductive member according to claim 1, wherein the locking portion is formed in a groove shape through which an upright portion formed in the support material can be inserted. A grounding structure of a solar cell module facing on a support using the grounding conductive member according to claim 1,
The support member includes an upright portion that comes into contact with the side surface of the solar cell module in the disposed state,
A grounding structure for a solar cell module, wherein the grounding conductive member is locked to a support member so that the projection of the grounding conductive member is positioned on the back surface of the frame of the solar cell module.

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