JP6668224B2 - Grounding bracket installation structure - Google Patents

Grounding bracket installation structure Download PDF

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JP6668224B2
JP6668224B2 JP2016233971A JP2016233971A JP6668224B2 JP 6668224 B2 JP6668224 B2 JP 6668224B2 JP 2016233971 A JP2016233971 A JP 2016233971A JP 2016233971 A JP2016233971 A JP 2016233971A JP 6668224 B2 JP6668224 B2 JP 6668224B2
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frame
solar cell
fixing
biting
flange
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JP2018091008A (en
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川村　拓也
拓也 川村
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株式会社栄信
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Description

本発明は、架台上に複数配置される太陽電池パネルのアース接続を簡単且つ確実と成すアース金具の設置構造に関する。 The present invention relates to an installation structure of a grounding member for easily and reliably connecting a plurality of solar cell panels arranged on a mount.

従来、屋根に設置した太陽電池パネルは、太陽電池の電気出力を取り出すための電気ケーブルを配線すると共に、太陽電池の発電によって帯電した電荷をアースする必要があった。
太陽電池パネルのフレームは、導電材であるアルミニウムで構成されているが、その外面は腐食防止のためにアルマイト処理や塗装などが施されているので、そのフレーム外面に施された塗膜は電気的に絶縁されており、各太陽電池本体にアース線を接続せねばならず、そのアース線の配線は甚だ面倒であった。 2. Description of the Related Art Conventionally, a solar cell panel installed on a roof had to be wired with an electric cable for taking out the electric output of the solar cell and to ground an electric charge generated by power generation of the solar cell.
The solar cell panel frame is made of conductive aluminum, but its outer surface is anodized or painted to prevent corrosion. Each solar cell body must be connected to a ground wire, and the wiring of the ground wire is extremely troublesome.

かかる不具合を解消するため、特許文献１では、屋根上に取付けられた架台上に隣接配置される太陽電池パネルのフレーム同士を架台に押圧して固定することのできる固定金具において、太陽電池パネルのフレームを押圧する下端部に先端が尖った複数の突起を設け、太陽電池パネルが架台に固定される際に、複数の突起がフレーム表面の絶縁皮膜を刺衝してフレーム素材に食い込むことで、固定金具を介して太陽電池パネル同士を電気的に接続し、複数の太陽電池パネルの夫々にアース線を取付けなくても、一つの太陽電池パネルにアース線を取付けるだけで、複数の太陽電池パネルをアース（接地）している。   In order to solve such a problem, Patent Literature 1 discloses a fixing bracket that can press and fix frames of solar cell panels arranged adjacent to each other on a pedestal mounted on a roof to the pedestal. By providing a plurality of protrusions with sharp tips at the lower end that presses the frame, and when the solar cell panel is fixed to the gantry, the plurality of protrusions pierce the insulating film on the frame surface and cut into the frame material, Even if solar panels are electrically connected to each other via fixing brackets and a ground wire is not attached to each of the multiple solar panels, it is possible to connect multiple solar panels by simply attaching the ground wire to one solar panel. Is grounded.

特開２００７−２１１４３５号公報JP 2007-21435A

ところで、架台や太陽電池パネルのフレームは様々な形態のものがあり、そのフレームの形態に応じ固定金具の形態も異なるので、各種形態の固定金具に上記突起を形成せねばならない課題を有している。
そこで、本発明では、架台上に隣接配置される太陽電池パネルのフレーム間に跨がって該フレーム同士を架台に押圧して固定する固定金具に容易に取付けられ、該固定金具を介して太陽電池パネル同士を電気的に接続するアース金具の設置構造を提供することを目的としている。 By the way, there are various types of mounts and frames of solar cell panels, and since the form of the fixing bracket is different depending on the form of the frame, there is a problem that the above-mentioned projection must be formed on the fixing bracket of various forms. I have.
Therefore, in the present invention, the frame is easily attached to a fixing bracket that straddles the frames of the solar cell panels arranged adjacent to each other on the gantry and presses and fixes the frames to the gantry. It is an object of the present invention to provide an installation structure of a ground metal fitting for electrically connecting battery panels.

上記課題に鑑み、本発明のアース金具の設置構造は、架台上に隣接配置される太陽電池パネルのフレームより水平突設したフランジ間に跨がって該フランジ同士を上方から押圧して架台に固定する固定金具の一対の垂下板から成るフレーム押圧部の夫々に取付けられるものであって、アース金具は、前記フレーム押圧部をこれの板厚に対応した溝幅を有する凹溝内に配置する様にしてフレーム押圧部を一対の側板で挟掴するコ字状クリップからなり、前記側板には、フレーム押圧部表面の絶縁皮膜を刺衝して固定金具素材に食い込むことで電気的に導通する固定金具食込用突起を設け、前記側板間に架設された底板の外側面にフランジ表面の絶縁皮膜を刺衝してフレーム素材に食い込むことで電気的に導通するフレーム食込用突起を設けたことを特徴とする。 In view of the above-mentioned problem, the installation structure of the earthing metal of the present invention is formed by straddling the flanges horizontally protruding from the frame of the solar cell panel arranged adjacent to the gantry and pressing the flanges from above to the gantry. A fixing metal fitting is fixed to each of the frame pressing portions formed of a pair of hanging plates of the fixing metal, and the earth metal fitting arranges the frame pressing portion in a concave groove having a groove width corresponding to the thickness of the frame pressing portion. In this manner, the frame pressing portion is formed of a U-shaped clip which is gripped by a pair of side plates, and the side plate is electrically conductive by piercing the insulating film on the surface of the frame pressing portion and biting into the fixing bracket material. A fixing metal biting projection is provided, and a frame biting projection that is electrically conductive by piercing an insulating film on a flange surface and biting into a frame material is provided on an outer surface of a bottom plate provided between the side plates. The features.

要するに本発明に係るアース金具は、上記の様に固定金具の一対の垂下板から成るフレーム押圧部の夫々を、これの板厚に対応した溝幅を有する凹溝内に配置する様にしてフレーム押圧部を一対の側板で挟掴するコ字状クリップからなるので、固定金具に容易に取付けられる。
しかも、上記側板には、フレーム押圧部表面の絶縁皮膜を刺衝して固定金具素材に食い込むことで電気的に導通する固定金具食込用突起を設け、前記側板間に架設された底板の外側面にフランジ（フレーム）表面の絶縁皮膜を刺衝してフレーム素材に食い込むことで電気的に導通するフレーム食込用突起を設けたので、かかるアース金具を取付けた固定金具で架台上に隣接配置される太陽電池パネルのフレームより水平突設したフランジ間に跨がって該フランジ同士を上方から押圧して架台に固定するだけで、架台上で隣接するフレーム同士を確実に電気的に接続でき、その中の１つの太陽電池パネルにアース線を接続して接地するだけで、架台上で固定金具に連結された全ての太陽電池パネルを効率良くアースできる等その実用的効果甚だ大である。 In short, the earth metal fitting according to the present invention is configured such that each of the frame pressing portions formed of a pair of hanging plates of the fixing metal is arranged in a concave groove having a groove width corresponding to the thickness of the frame. Since the pressing portion is formed of a U-shaped clip which is gripped by the pair of side plates, it can be easily attached to the fixing bracket.
In addition, the side plate is provided with a fixing metal biting projection which is electrically connected to the fixing metal material by piercing the insulating film on the surface of the frame pressing portion, and is provided outside the bottom plate provided between the side plates. The side of the flange ( frame ) is pierced with the insulating film on the surface of the flange ( frame ) to cut into the frame material. It is possible to reliably electrically connect the adjacent frames on the gantry simply by pressing the flanges from above and fixing them to the gantry by straddling between the flanges horizontally protruding from the frame of the solar cell panel. By connecting the ground wire to one of the solar panels and grounding it, all the solar panels connected to the fixing brackets on the gantry can be efficiently grounded. It is.

本発明に係るアース金具の斜視図である。It is a perspective view of the earth metal fitting concerning the present invention. 取付け前のアース金具と、これをフレーム押圧部に取付けた固定金具の斜視図である。FIG. 5 is a perspective view of a grounding metal member before mounting and a fixing metal member which is mounted on a frame pressing portion. アース金具を取付けた固定金具の側面図である。It is a side view of the fixing metal fitting which attached the earth metal fitting. 太陽電池パネルの一設置例を示す一部省略斜視図である。It is a partially omitted perspective view showing one example of installation of a solar cell panel. 図４の要部拡大図である。It is a principal part enlarged view of FIG.

以下本発明の実施の一形態例を図面に基づいて説明する。
本発明に係るアース金具１は、屋根Ｒ上に縦横に適宜間隔を以て点在配置した架台２上に屋根Ｒの流れ方向Ｘの前後に隣接配置される太陽電池パネルＰのフレーム３間に跨がって該フレーム３同士を架台２に押圧して固定する固定金具４のフレーム押圧部4dに取付けられる。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The earthing metal fitting 1 according to the present invention straddles a frame 2 of a solar cell panel P which is adjacently arranged before and after in the flow direction X of the roof R on a gantry 2 which is scattered vertically and horizontally at appropriate intervals on the roof R. Thus, the frame 3 is attached to the frame pressing portion 4d of the fixture 4 for pressing and fixing the frames 3 to the gantry 2.

架台２は、上面が平坦に形成されて太陽電池パネルＰの載置部2aと成しており、該載置部2a上の中央には、固定金具４を挿通してこれをナット５の締結で固定する螺子部2bを上方突設している。   The gantry 2 has a flat upper surface to form a mounting portion 2a for the solar cell panel P. A fixing bracket 4 is inserted into the center of the mounting portion 2a, and the mounting bracket 2 is fastened with a nut 5. A screw portion 2b to be fixed at the upper end is protruded upward.

太陽電池パネルＰは、方形板状の太陽電池本体（図示せず）を方形枠状のフレーム３で囲繞して成り、該フレーム３の前後の夫々を屋根Ｒの軒側及び棟側に対応させて架台２の載置部2a上の流れ方向Ｘ前後に前方の太陽電池パネルＰの後端部及び後方の太陽電池パネルＰの前端部を載置する。
又、フレーム３の前後端面上方の夫々には、先端が上方へ垂直に指向する鉤状のフランジ3aを水平突設している。 The solar cell panel P is formed by surrounding a square-plate-shaped solar cell body (not shown) with a rectangular frame-shaped frame 3 so that the front and rear of the frame 3 correspond to the eaves side and the ridge side of the roof R, respectively. The rear end of the front solar cell panel P and the front end of the rear solar cell panel P are placed before and after in the flow direction X on the mounting portion 2a of the gantry 2.
A hook-like flange 3a whose tip is directed vertically upward is horizontally protruded from the front and rear end surfaces of the frame 3 respectively.

固定金具４は、中央に螺子部2bの挿通孔（図示せず）を穿設した水平板4aを設けると共に、該水平板4aの前後端部の夫々に上下に延びる立壁4bを固着して側面視Ｈ字状に形成して成り、前後に平行配置される立壁4bの上端縁に先端が下方へ垂直に指向する鉤状片4cを水平突設しており、該鉤状片4c先端の垂下板4dをフランジ3aを上方から押圧するフレーム押圧部4dと成している。   The fixing bracket 4 is provided with a horizontal plate 4a having a screw hole 2b insertion hole (not shown) formed at the center, and a vertically extending vertical wall 4b fixed to each of the front and rear ends of the horizontal plate 4a. A hook-shaped piece 4c whose tip is directed vertically downward is horizontally protruded from the upper end edge of an upright wall 4b which is formed in an H-shape and is disposed in parallel in the front and rear direction, and the tip of the hook-shaped piece 4c hangs down. The plate 4d serves as a frame pressing portion 4d for pressing the flange 3a from above.

フレーム３及び固定金具４は、アルミニウム製の素材にて形成され、その外表面は腐食防止のためにアルマイト処理や塗装などが施されており、そのフレーム３及び固定金具４の外表面に施された図示しない塗膜（以下、絶縁皮膜と称する。）で電気的に絶縁されている。   The frame 3 and the fixing bracket 4 are formed of an aluminum material, and the outer surfaces thereof are subjected to alumite treatment or painting to prevent corrosion, and are applied to the outer surfaces of the frame 3 and the fixing bracket 4. It is electrically insulated by an unillustrated coating film (hereinafter, referred to as an insulating film).

アース金具１は、ステンレス製の薄肉鋼板からなり、固定金具４の一対のフレーム押圧部4dの夫々をこれの板厚に対応した溝幅を有する凹溝1a内に配置する様にしてフレーム押圧部4dを一対の側板1bで挟掴するコ字状クリップからなり、その表面に絶縁皮膜は施されていない。
The earth metal fitting 1 is made of a thin steel plate made of stainless steel, and a pair of frame pressing parts 4d of the fixing metal 4 are arranged in a concave groove 1a having a groove width corresponding to the plate thickness. It consists of a U-shaped clip holding 4d between a pair of side plates 1b, and its surface is not coated with an insulating film.

各側板1bには、フレーム押圧部4d表面の絶縁皮膜を刺衝して固定金具素材に食い込むことで電気的に導通する固定金具食込用突起1c（以下、単に突起1cと称する。）を設けており、該突起1cは、側板1b上端の角部に尖端が内側に指向する鉤爪状に形成されている。   Each side plate 1b is provided with a fixing metal biting projection 1c (hereinafter, simply referred to as a projection 1c) which is electrically connected to the fixing metal material by piercing the insulating film on the surface of the frame pressing portion 4d and biting into the fixing metal material. The protrusion 1c is formed in a claw shape with a pointed tip directed inward at a corner at the upper end of the side plate 1b.

又、側板1b間に架設された底板1dの外側面にフランジ3a（フレーム３）表面の絶縁皮膜を刺衝してフレーム素材に食い込むことで電気的に導通するフレーム食込用突起1e（以下、単に突起1eと称する。）を設けており、該突起1eは、バーリング加工により筒型凸状に垂下形成され、底板1dの長手方向の中心線上に所定間隔を設けて複数配置されている。   In addition, a frame biting projection 1e (hereinafter, referred to as an electrically conductive material) is formed by piercing the outer surface of the bottom plate 1d provided between the side plates 1b with the insulating film on the surface of the flange 3a (frame 3) and biting into the frame material. The protrusion 1e is formed in a cylindrical convex shape by a burring process, and a plurality of the protrusions 1e are arranged at predetermined intervals on a longitudinal center line of the bottom plate 1d.

上記の様に構成されたアース金具１は、予め固定金具４の各フレーム押圧部4dに取付けられる。
即ち、凹溝1a内に固定金具４のフレーム押圧部4dを配置すると共に、該フレーム押圧部4aを両方の側板1bで挟掴する様にかしめる。
これにより、鉤爪状の突起1cがフレーム押圧部4dの内外側面の絶縁皮膜を刺衝して固定金具素材に食い込み、固定金具４とアース金具１とは電気的に導通可能となると共に、フレーム押圧部4dにおいて直にフランジ3aを押圧する下端面に底板1dを介して突起1eが突設することとなる。 The earth metal fitting 1 configured as described above is attached to each frame pressing portion 4d of the fixing metal 4 in advance.
That is, the frame pressing portion 4d of the fixing fitting 4 is arranged in the concave groove 1a, and the frame pressing portion 4a is swaged so as to be gripped by both side plates 1b.
As a result, the claw-shaped projections 1c pierce the insulating film on the inner and outer surfaces of the frame pressing portion 4d and bite into the fixing metal material, so that the fixing metal 4 and the ground metal 1 can be electrically connected to each other, and the frame pressing portion 4d can be electrically connected. In the portion 4d, a projection 1e is provided via a bottom plate 1d on the lower end surface for directly pressing the flange 3a.

そして、太陽電池パネルＰの屋根Ｒ上への設置に際しては、該屋根Ｒ上に縦横に適宜間隔を以て点在配置した架台２の載置部2a上の流れ方向Ｘ前後に流れ方向Ｘ前後で隣接する太陽電池パネルＰ（フレーム３）の後端部及び前端部を螺子部2bを介して載置し、螺子部2bの前後に配置される各フレーム３のフランジ3aに固定金具４のフレーム押圧部4dの夫々を掛止すると共に、水平板4aの下方より上方へ貫通突出する螺子部2bにワッシャとバネ座金を挿通してナット５を螺着することにより、架台２の載置部2a上に流れ方向Ｘ前後で隣接するフレーム３同士が架台２に押圧固定される。   When the solar cell panel P is installed on the roof R, the solar cell panel P is adjacent to the flow direction X before and after the flow direction X on the mounting portion 2a of the gantry 2 which is scattered vertically and horizontally at appropriate intervals. The rear end portion and the front end portion of the solar cell panel P (frame 3) to be mounted are placed via the screw portion 2b, and the frame pressing portion of the fixing bracket 4 is mounted on the flange 3a of each frame 3 disposed before and after the screw portion 2b. 4d, and a nut 5 is screwed into a screw portion 2b projecting upward from below the horizontal plate 4a and screwed into the screw portion 2b, so that the nut 5 is screwed on the mounting portion 2a of the gantry 2. Frames 3 adjacent to each other in the flow direction X are pressed and fixed to the gantry 2.

そして、螺子部2bに対するナット５の締め付けにより、フレーム押圧部4dの下端面より下方突出する突起1eはフランジ3a表面の絶縁皮膜を刺衝してフレーム素材に食い込み、これによりアース金具１を介して固定金具４と流れ方向Ｘ前後のフレーム３同士は電気的に導通し、この様に架台２上で隣接するフレーム３同士を確実に電気的に接続できるため、その中の１つのフレーム３にアース線を接続して接地するだけで、架台２上で固定金具４に連結された全ての太陽電池パネルＰを効率良くアースできる。   When the nut 5 is tightened with respect to the screw portion 2b, the projection 1e projecting downward from the lower end surface of the frame pressing portion 4d pierces the insulating film on the surface of the flange 3a and cuts into the frame material. The fixing bracket 4 and the frames 3 before and after the flow direction X are electrically connected to each other, and thus the adjacent frames 3 on the gantry 2 can be reliably electrically connected to each other. By simply connecting the wires and grounding, all the solar cell panels P connected to the fixture 4 on the gantry 2 can be efficiently grounded.

１ アース金具
1a 凹溝
1b 側板
1c 固定金具食込用突起
1d 底板
1e フレーム食込用突起
２ 架台
３ フレーム
４ 固定金具
4d フレーム押圧部
Ｐ 太陽電池パネル 1 Grounding bracket
1a Groove
1b Side plate
1c Entrance for fixing bracket
1d bottom plate
1e Projection for cutting into frame 2 Stand 3 Frame 4 Fixing bracket
4d Frame pressing part P Solar panel

Claims (1)

架台上に隣接配置される太陽電池パネルのフレームより水平突設したフランジ間に跨がって該フランジ同士を上方から押圧して架台に固定する固定金具の一対の垂下板から成るフレーム押圧部の夫々に取付けられるアース金具の設置構造であって、該アース金具は、前記フレーム押圧部をこれの板厚に対応した溝幅を有する凹溝内に配置する様にしてフレーム押圧部を一対の側板で挟掴するコ字状クリップからなり、前記側板には、フレーム押圧部表面の絶縁皮膜を刺衝して固定金具素材に食い込むことで電気的に導通する固定金具食込用突起を設け、前記側板間に架設された底板の外側面にフランジ表面の絶縁皮膜を刺衝してフレーム素材に食い込むことで電気的に導通するフレーム食込用突起を設けたことを特徴とするアース金具の設置構造。 A frame pressing portion formed of a pair of hanging plates of a fixing bracket that straddles a flange horizontally protruded from a frame of a solar cell panel disposed adjacent to the frame and presses the flanges from above to fix the flange to the frame. An installation structure of earthing metal fittings respectively attached to the frame fitting, wherein the earthing metal fitting is arranged in a concave groove having a groove width corresponding to the thickness of the frame pressing part, and the frame pressing part is formed by a pair of side plates. The side plate is provided with a fixing metal biting projection that is electrically conducted by piercing an insulating film on the surface of the frame pressing portion and biting into the fixing metal material. installation of grounding bracket, characterized in that a frame diets write projections electrically conductive by biting into the frame material to stab the insulating coating of the flange surface to the outer surface of the installation has been bottom plate between the side plates Elephants.
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JP3838231B2 (en) * 2003-08-19 2006-10-25 松下電工株式会社 Roof functional panel mounting structure
JP5891109B2 (en) * 2012-05-30 2016-03-22 株式会社屋根技術研究所 Solar cell module fixing structure and solar cell module fixing method
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JP6025770B2 (en) * 2014-03-03 2016-11-16 株式会社屋根技術研究所 Fixing bracket for solar cell module and fixing structure for solar cell module

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