JP2018091008A - Ground metal fittings - Google Patents

Ground metal fittings Download PDF

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JP2018091008A
JP2018091008A JP2016233971A JP2016233971A JP2018091008A JP 2018091008 A JP2018091008 A JP 2018091008A JP 2016233971 A JP2016233971 A JP 2016233971A JP 2016233971 A JP2016233971 A JP 2016233971A JP 2018091008 A JP2018091008 A JP 2018091008A
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frame
metal fittings
frames
side plates
solar cell
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JP6668224B2 (en
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川村　拓也
Takuya Kawamura
拓也 川村
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Eishin KK
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Eishin KK
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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

Abstract

PROBLEM TO BE SOLVED: To provide ground metal fittings that are easily fitted to fixation metal fittings, straddling between frames of solar battery panels arranged adjacently on a pedestal to press and fix them to the pedestal, so as to electrically connect the frames to each other through the fixation metal fittings.SOLUTION: A channel-shaped clip is constituted which holds a frame press part 4d of fixation metal fittings 4 between a pair of side plates 1b such that the frame press part 4d is arranged in a recessed groove 1a. The side plates 1b are each provided with a projection 1c for fixation metal fittings penetration which stabs an insulation coating on a surface of the frame press part 4d and penetrates into a fixation metal fittings raw material to make an electric connection, and a projection 1e for frame penetration which stabs an insulation coating on a surface of a frame 3 and penetrates into the frame raw material to make an electric connection is provided on an outer side face of a bottom plate 1d installed between the side plates 1b.SELECTED DRAWING: Figure 5

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に関する。   The present invention relates to a grounding metal fitting for simply and reliably connecting a plurality of solar cell panels arranged on a gantry.

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。 Conventionally, a solar cell panel installed on a roof has to be wired with an electric cable for taking out the electric output of the solar cell and to ground the electric charge charged by the power generation of the solar cell.
The frame of the solar cell panel is made of aluminum, which is a conductive material, but its outer surface is anodized or painted to prevent corrosion, so the coating applied to the outer surface of the frame is electrically It was insulated and the ground wire had to be connected to each solar cell body, and the wiring of the ground wire was very 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 eliminate such inconvenience, in Patent Document 1, in a fixing bracket capable of pressing and fixing frames of solar cell panels arranged adjacent to each other on a gantry attached on a roof to the gantry, By providing a plurality of protrusions with sharp tips at the lower end that presses the frame, when the solar cell panel is fixed to the gantry, the plurality of protrusions pierce the insulating film on the frame surface and bite into the frame material, Multiple solar cell panels can be connected to a single solar cell panel by simply connecting the solar cell panels to each other via a fixture and without attaching a ground wire to each solar cell panel. Is grounded.

特開２００７−２１１４３５号公報JP 2007-2111435 A

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を提供することを目的としている。 By the way, there are various types of frames for the frame and the solar cell panel, and the shape of the fixing bracket is different depending on the shape of the frame. Therefore, there is a problem that the protrusions must be formed on various types of fixing brackets. Yes.
Therefore, in the present invention, the solar battery panels that are arranged adjacent to each other on the gantry are easily attached to a fixing bracket that spans between the frames of the solar panel and presses the frames to the gantry to fix the solar panel through the fixing bracket. An object of the present invention is to provide 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のフレーム押圧部に取付けられるものであって、前記フレーム押圧部を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ことを特徴とする。   In view of the above problems, the grounding metal fitting of the present invention is attached to the frame pressing portion of the fixing metal fitting that presses and fixes the frames to the gantry across the frames of the solar cell panels arranged adjacent to each other on the gantry. A U-shaped clip that sandwiches the frame pressing portion with a pair of side plates so that the frame pressing portion is disposed in the concave groove, and an insulating film on the surface of the frame pressing portion is formed on the side plate. Protrusions for fixing metal fittings that are electrically connected by biting into the fixing metal material are provided, and an insulating film on the frame surface is applied to the outer surface of the bottom plate installed between the side plates to form the frame material. It is characterized by providing a frame biting projection that is electrically conducted by biting.

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フレーム押圧部を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 ground metal fitting according to the present invention is composed of a U-shaped clip that sandwiches the frame pressing portion with a pair of side plates so that the frame pressing portion of the fixing metal fitting is disposed in the concave groove as described above. Easy to install on.
In addition, the side plate is provided with a fixing metal biting protrusion that is electrically connected by piercing the insulating film on the surface of the frame pressing portion and biting into the fixing metal material, and is provided on the outer side of the bottom plate installed between the side plates. Since the frame cut-out projection that conducts electricity by piercing the insulating film on the side of the frame and biting into the frame material is provided on the side, the sun is placed adjacent to the base with the fixing bracket to which such a ground bracket is attached. By simply straddling between the frames of the battery panel and pressing the frames to the base, the adjacent frames on the base can be securely connected to each other, and one of the solar panels is grounded. It is very practical because it can efficiently ground all the solar cell panels connected to the fixture on the pedestal by simply connecting the wires and grounding them.

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 which concerns on this 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。It is a perspective view of the earthing fixture before attachment, and the fixture which attached this to the frame press part. 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 fixed 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-omission perspective view which shows the example of 1 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。 An embodiment of the present invention will be described below with reference to the drawings.
The ground metal fitting 1 according to the present invention straddles between the frames 3 of the solar battery panels P that are adjacently arranged in the front and rear of the flow direction X of the roof R on the mount 2 that is arranged on the roof R at appropriate intervals in the vertical and horizontal directions. Thus, the frame 3 is attached to the frame pressing portion 4d of the fixing metal 4 that presses and fixes 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 is formed with a flat upper surface to form a mounting portion 2a for the solar cell panel P. A fixing metal fitting 4 is inserted into the center of the mounting portion 2a and a nut 5 is fastened. The screw part 2b to be fixed at is projected 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 rectangular plate-shaped solar cell body (not shown) with a rectangular frame-shaped frame 3, and the front and rear sides of the frame 3 correspond to the eaves side and the ridge side of the roof R, respectively. The rear end portion of the front solar cell panel P and the front end portion of the rear solar cell panel P are placed before and after the flow direction X on the placement portion 2a of the gantry 2.
In addition, a flange-like flange 3a whose tip is oriented vertically upward is horizontally provided at each of the upper front and rear end surfaces of the frame 3.

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 an insertion hole (not shown) for the screw portion 2b at the center, and a vertical wall 4b extending vertically is fixed to each of the front and rear end portions of the horizontal plate 4a. A hook-like piece 4c, which is formed in an H-shape as viewed from the front wall and is vertically arranged at the upper edge of the standing wall 4b arranged in parallel in the front and rear direction, is projected horizontally, and the tip of the hook-like piece 4c is suspended. The plate 4d forms a frame pressing portion 4d that presses 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 made of an aluminum material, and the outer surface thereof is subjected to anodizing treatment or painting to prevent corrosion. The frame 3 and the fixing bracket 4 are applied to the outer surface of the frame 3 and the fixing bracket 4. The film is electrically insulated by a coating film (not shown) (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のフレーム押圧部4dを凹溝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 ground metal fitting 1 is made of a thin steel plate made of stainless steel, and is a U-shaped clip that holds the frame pressing portion 4d between the pair of side plates 1b so that the frame pressing portion 4d of the fixing metal fitting 4 is disposed in the concave groove 1a. That is, the surface is not provided 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 fitting projection 1c (hereinafter simply referred to as a protrusion 1c) that is electrically connected 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-like shape with the tip pointing inward at the corner of 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。   Also, a frame biting protrusion 1e (hereinafter referred to as "electrical conduction") that is electrically connected by piercing an insulating film on the surface of the flange 3a (frame 3) on the outer surface of the bottom plate 1d installed between the side plates 1b and biting into the frame material. The protrusions 1e are formed in a cylindrical convex shape by burring, and a plurality of protrusions 1e are arranged at predetermined intervals on the 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 ground metal fitting 1 configured as described above is attached to each frame pressing portion 4d of the fixing metal fitting 4 in advance.
That is, the frame pressing portion 4d of the fixture 4 is disposed in the concave groove 1a, and the frame pressing portion 4a is crimped so as to be pinched by both side plates 1b.
As a result, the claw-shaped projection 1c pierces the insulating film on the inner and outer surfaces of the frame pressing portion 4d and bites into the fixing bracket material, so that the fixing bracket 4 and the ground bracket 1 can be electrically connected and the frame pressing The protrusion 1e protrudes through the bottom plate 1d on the lower end surface that directly presses the flange 3a in the portion 4d.

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。   Then, when installing the solar cell panel P on the roof R, the solar cell panel P is adjacent to the front and rear of the flow direction X before and after the flow direction X on the mounting portion 2a of the gantry 2 arranged in the vertical and horizontal directions with 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 placed on the flange 3a of each frame 3 arranged before and after the screw portion 2b. Each of the 4d is hooked, and a washer and a spring washer are inserted into a screw part 2b projecting upward from below the horizontal plate 4a, and a nut 5 is screwed onto the mounting part 2a of the gantry 2. The frames 3 adjacent to each other before and after 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。   Then, by tightening the nut 5 with respect to the screw portion 2b, the protrusion 1e protruding downward from the lower end surface of the frame pressing portion 4d pierces the insulating film on the surface of the flange 3a and bites 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 in this way, the adjacent frames 3 on the gantry 2 can be reliably electrically connected to each other. All the solar battery panels P connected to the fixing bracket 4 on the gantry 2 can be efficiently grounded by simply connecting the wires and grounding them.

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 Fixing bracket protrusion
1d bottom plate
1e Frame biting projection 2 Base 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のフレーム押圧部に取付けられるアース金具であって、該アース金具は、前記フレーム押圧部を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ことを特徴とするアース金具。   A grounding metal fitting that is attached to a frame pressing portion of a fixing metal fitting across the frames of the solar cell panels that are arranged adjacent to each other on the gantry and that presses and fixes the frames to the gantry. It consists of a U-shaped clip that sandwiches the frame pressing part with a pair of side plates so that the frame pressing part is placed in the concave groove, and the side plate is stuck with an insulating film on the surface of the frame pressing part to fix it. Protrusion for fixing metal fittings that are electrically connected by biting into the material is provided, and an insulating film on the surface of the frame is inserted into the outer surface of the bottom plate laid between the side plates so as to cut into the frame material electrically. A grounding metal fitting provided with a projection for biting into the frame.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005061157A (en) * 2003-08-19 2005-03-10 Matsushita Electric Works Ltd Mounting structure of roof functional panel
JP2013249579A (en) * 2012-05-30 2013-12-12 Yane Gijutsu Kenkyusho:Kk Solar cell module fixing structure and method of fixing solar cell module
US20150171786A1 (en) * 2012-12-28 2015-06-18 Andrew B. Worden Solar panel supports
JP2015165075A (en) * 2014-03-03 2015-09-17 株式会社屋根技術研究所 Fixture and fixing structure for solar cell module

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005061157A (en) * 2003-08-19 2005-03-10 Matsushita Electric Works Ltd Mounting structure of roof functional panel
JP2013249579A (en) * 2012-05-30 2013-12-12 Yane Gijutsu Kenkyusho:Kk Solar cell module fixing structure and method of fixing solar cell module
US20150171786A1 (en) * 2012-12-28 2015-06-18 Andrew B. Worden Solar panel supports
JP2015165075A (en) * 2014-03-03 2015-09-17 株式会社屋根技術研究所 Fixture and fixing structure for solar cell module

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