JP4117850B1 - Current collecting cable - Google Patents
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- JP4117850B1 JP4117850B1 JP2006354361A JP2006354361A JP4117850B1 JP 4117850 B1 JP4117850 B1 JP 4117850B1 JP 2006354361 A JP2006354361 A JP 2006354361A JP 2006354361 A JP2006354361 A JP 2006354361A JP 4117850 B1 JP4117850 B1 JP 4117850B1
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- 238000010586 diagram Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
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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]
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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
- 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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- Condensed Matter Physics & Semiconductors (AREA)
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
【課題】太陽電池アレイから接続箱の間のケーブルの本数、及び、接続箱の直流入力回路数を減らすことで部品点数を減らして、コストを削減すると共に、配線作業、接続箱への結線作業の負担を低減して、施工時の作業性を向上させる。
【解決手段】複数の太陽電池モジュールに接続され、当該太陽電池モジュールからの出力を導出するためのケーブルを電気的に並列接続するケーブルであって、一の上記太陽電池モジュールからの出力を導出するケーブルと結合される第１コネクタと、他の上記太陽電池モジュールからの出力を導出するケーブルと結合される第２コネクタと、上記第１コネクタを介して出力を導く第１支線ケーブルと、上記第２コネクタを介して出力を導く第２支線ケーブルと、パワーコンディショナに結合し、上記第１支線ケーブルと上記第２支線ケーブルとを介して、上記太陽電池モジュールからの出力を出力する出力コネクタとを有する集電ケーブル。
【選択図】図２[PROBLEMS] To reduce the number of parts by reducing the number of cables between a solar cell array and a connection box and the number of DC input circuits of the connection box, thereby reducing costs, wiring work, and connection work to the connection box. To reduce work load and improve workability during construction.
A cable connected to a plurality of solar cell modules and electrically connecting cables for deriving an output from the solar cell module in parallel, wherein the output from one of the solar cell modules is derived. A first connector coupled to the cable; a second connector coupled to a cable for deriving an output from the other solar cell module; a first branch cable guiding the output via the first connector; A second branch cable for guiding the output through two connectors, an output connector coupled to a power conditioner, and outputting an output from the solar cell module through the first branch cable and the second branch cable; Current collecting cable.
[Selection] Figure 2
Description
本発明は、住宅用をはじめとする太陽光発電システムの直流部を配線する技術に関する。 The present invention relates to a technique for wiring a DC part of a photovoltaic power generation system including a house.
太陽電池モジュールによる発電出力は直流なので、交流機器類に利用するためには、太陽電池モジュールからの直流出力を集めてパワーコンディショナにて交流に変換する必要がある。この場合に、太陽電池モジュールの出力電圧とパワーコンディショナの入力電圧は必ずしも一致しないので、太陽電池モジュール側の出力電圧をパワーコンディショナの入力電圧まで高める必要がある。 Since the power generation output by the solar cell module is direct current, in order to use it for AC devices, it is necessary to collect the direct current output from the solar cell module and convert it into alternating current by the power conditioner. In this case, since the output voltage of the solar cell module and the input voltage of the power conditioner do not necessarily match, it is necessary to increase the output voltage on the solar cell module side to the input voltage of the power conditioner.
例えば、太陽電池モジュールの出力電圧が４０Ｖで、パワーコンディショナの入力電圧が２００Ｖである場合には、２００Ｖになるように当該太陽電池モジュール５枚を直列に接続した太陽電池モジュールストリングスを形成し、それぞれの太陽電池モジュールを接続箱内で並列に接続し、これをパワーコンディショナの入力側に繋ぎ込む。 For example, when the output voltage of the solar cell module is 40V and the input voltage of the power conditioner is 200V, a solar cell module string is formed by connecting the five solar cell modules in series so as to be 200V. Each solar cell module is connected in parallel in the junction box and connected to the input side of the inverter.
しかしながら、従来の太陽光発電システムにおいては、各太陽電池モジュールから接続箱までの間にケーブルが太陽電池モジュールごとに必要となり、多数のケーブルが接続箱に集合するので、配線の取り回しが難しかった。
特に、ＣＩＳ太陽電池モジュール等のように、高電圧低電流の太陽電池モジュールをアレイに組む場合には、太陽電池モジュールの並列数が増加し、接続箱に繋ぎ込まれるケーブルの本数が膨大な数に及ぶので、配線の取り回しが非常に困難であった。
However, in the conventional solar power generation system, a cable is required for each solar cell module between each solar cell module and the connection box, and a large number of cables gather in the connection box, which makes it difficult to route the wiring.
In particular, when a high-voltage and low-current solar cell module such as a CIS solar cell module is assembled in an array, the number of parallel solar cell modules increases, and the number of cables connected to the connection box is enormous. Therefore, it was very difficult to handle the wiring.
この点、複数の太陽電池モジュール又は複数の太陽電池モジュールストリングスの出力を取り出す配線部材の使用量を削減できるとともに、施工が簡単で、誤配線の可能性を低くできる太陽電池発電装置用配線器具として、幹線ケーブルと、このケーブルの中間部分の複数個所に設けた分岐接続部に夫々分岐接続された複数の支線ケーブルとを具備し、互いに並べて設置された複数の太陽電池モジュールがユニットにされかつ互いに並べて設置された複数の太陽電池モジュールユニットの夫々の出力をケーブルが有した幹線ケーブルで導き、幹線ケーブルに接続される支線ケーブルを有した各ケーブルの先端部を、複数の前記ユニットの出力端に接続し、この配線器具により各ユニット同士を並列に接続して、出力を屋内に引き込むことを特徴とするものが提案されている（特許文献１参照）。 In this regard, as a wiring device for a solar battery power generation device that can reduce the amount of wiring members that take out the outputs of a plurality of solar cell modules or a plurality of solar cell module strings, can be easily constructed, and can reduce the possibility of erroneous wiring. A main line cable, and a plurality of branch line cables branch-connected to branch connection portions provided at a plurality of positions in the middle portion of the cable, and a plurality of solar cell modules installed side by side are united and connected to each other. The output of each of the plurality of solar cell module units installed side by side is guided by a trunk cable having a cable, and the tip of each cable having a branch cable connected to the trunk cable is connected to the output end of the plurality of units. This unit is connected to each unit in parallel with this wiring device, and the output is drawn indoors. Those with have been proposed (see Patent Document 1).
しかしながら、上記特許文献１記載の技術においては、複数の支線ケーブルはいずれも同じ長さのものであるから、太陽電池モジュールと接続した場合に、太陽電池モジュールの配置により支線ケーブルにたわみが出てしまうこととなる結果、結線作業において邪魔になるという問題がある。 However, in the technique described in Patent Document 1, since the plurality of branch cables are all the same length, when connected to the solar cell module, the branch cable is bent due to the arrangement of the solar cell modules. As a result, there is a problem that it becomes an obstacle in the wiring work.
そこで、本発明は、太陽電池アレイから接続箱の間のケーブルの本数、及び、接続箱の直流入力回路数を減らすことで、システム全体の部品点数を減らし、部材調達コストを削減すると共に、配線作業、接続箱への結線作業の負担を低減して、施工時の作業性を向上させることを目的とする。 Accordingly, the present invention reduces the number of parts of the entire system by reducing the number of cables between the solar cell array and the connection box and the number of DC input circuits of the connection box, thereby reducing the cost of parts procurement and wiring. The purpose is to improve the workability during construction by reducing the burden of work and connection work to the junction box.
上記目的を達成するため、本発明に係る集電ケーブルの引き回し構造は、所定数の太陽電池モジュールを一列に直列接続してなる太陽電池モジュール群を、各太陽電池モジュール群の一方の側端部に正極の出力端が導出されると共に、他方の側端部に負極の出力端が導出されるように複数隣り合わせに併設してなる太陽電池アレイにおいて、一端に入力コネクタが取り付けられた複数の支線ケーブルと、一端に出力コネクタが取り付けられ、他端の分岐部において上記複数の支線ケーブルを集約する幹線ケーブルとを有し、当該複数の支線ケーブルが、上記分岐部から夫々別個に延び出ると共に、互いに、太陽電池モジュールの出力端間の距離に相当する長さが異なる集電ケーブルを複数用いて、上記複数の太陽電池モジュール群を電気的に並列接続するためのケーブルの引き回し構造であって、一の太陽電池モジュール群の一側端部から導出された正極側出力端と、当該一の太陽電池モジュール群と隣り合う太陽電池モジュール群の一側端部から導出された正極側出力端とを第一の集電ケーブルの入力コネクタと夫々接続し、上記一の太陽電池モジュール群の一側端部から導出された負極側出力端と、上記一の太陽電池モジュール群と隣り合う太陽電池モジュール群の一側端部から導出された負極側出力端とを第二の集電ケーブルの入力コネクタと夫々接続し、上記第一の集電ケーブル及び上記第二の集電ケーブルのそれぞれにおいて、上記太陽電池モジュールの出力端と接続した入力コネクタが取り付けられた支線ケーブルが上記幹線ケーブルに集約されることを特徴とする。 In order to achieve the above object, the current-collecting cable routing structure according to the present invention includes a solar cell module group in which a predetermined number of solar cell modules are connected in series in one row, and one side end portion of each solar cell module group. A plurality of branch lines each having an input connector attached to one end thereof in a solar cell array that is adjacent to each other so that a positive output end is led out at the same time and a negative output end is led out at the other side end. a cable, output connector is attached to one end, and a trunk cable to aggregate the plurality of branch cables at a branch portion of the other end, the plurality of branch cables, with exits extend respectively separately from the branch portion, The plurality of solar cell module groups are electrically connected to each other by using a plurality of current collecting cables having different lengths corresponding to the distance between the output ends of the solar cell modules. A routing structure of the cable to column connection, the positive pole side output terminal derived from the one end of the one solar cell modules, the solar cell module group adjacent to the solar cell module group of the one and a positive electrode side output terminal derived from the one end a first collector input connector and respective connecting cables, the negative side output terminal derived from the one end of the solar cell module group the one, The first current collecting cable is connected to the input connector of the second current collecting cable and the negative output side led out from one side end of the neighboring solar cell module group to the one solar cell module group. And in each of said 2nd current collection cable, the branch line cable to which the input connector connected with the output end of the said solar cell module was attached is collected by the said trunk cable.
本発明によれば、複数の太陽電池モジュールから導出されるケーブルが、当該太陽電池モジュールに近い位置で集約されるため、配線の取り回しが容易になる。
また、太陽電池アレイ全体の美観を損ねることなく、施工時の作業安全性を確保した上で配線ケーブル数を減らすことができるので、作業工数を減らして作業時間を短縮できるとともに、施工ミスによる事故や不具合を防ぐことができる上、コストも削減できる。
According to the present invention, since the cables led out from the plurality of solar cell modules are gathered at a position close to the solar cell module, wiring is facilitated.
In addition, since the number of wiring cables can be reduced while maintaining work safety during construction without compromising the aesthetic appearance of the entire solar cell array, work hours can be reduced and work time can be shortened. In addition to preventing problems and costs, costs can be reduced.
次に、本発明の第一の実施形態について図を参照して説明する。
図１は、太陽光発電システム全体の概略を示す図である。
家屋等の建物の屋根上には太陽電池アレイ１が設置され、太陽電池アレイ１で発電された電力は、集電ケーブル２、接続箱３、パワーコンディショナ４、分電盤５、及び配線６を介して、負荷７に供給される。
太陽電池アレイ１は、複数の太陽電池モジュール１０１〜１８０をアレイ状に配置したものであり、８枚直列に接続された太陽電池モジュール１０１〜１１０、１１１〜１２０、１２１〜１３０、１３１〜１４０、１４１〜１５０、１５１〜１６０、１６１〜１７０、１７１〜１８０夫々を１回路として、１０回路が並列に接続されている。なお、本実施例においては、太陽電池モジュール１０１〜１８０はＣＩＳ太陽電池により構成され、最大出力動作電圧は４０Ｖ、最大出力動作電流は２．０Ａであり、最大出力は８０Ｗである。
Next, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an outline of the entire photovoltaic power generation system.
A solar cell array 1 is installed on the roof of a building such as a house, and the power generated by the solar cell array 1 is collected by a current collecting cable 2, a connection box 3, a power conditioner 4, a distribution board 5, and wiring 6. To be supplied to the load 7.
The solar cell array 1 has a plurality of solar cell modules 101 to 180 arranged in an array, and eight solar cell modules 101 to 110, 111 to 120, 121 to 130, 131 to 140 connected in series, Each of 141-150, 151-160, 161-170, 171-180 is one circuit, and 10 circuits are connected in parallel. In this embodiment, the solar cell modules 101 to 180 are constituted by CIS solar cells, the maximum output operating voltage is 40 V, the maximum output operating current is 2.0 A, and the maximum output is 80 W.
接続箱３は、各集電ケーブル２を集約する。接続箱３において、各集電ケーブル２は並列に接続され、配線６を経由してパワーコンディショナ４の入力端子に接続される。 The connection box 3 collects the current collecting cables 2 together. In the connection box 3, the current collecting cables 2 are connected in parallel and connected to the input terminal of the power conditioner 4 via the wiring 6.
パワーコンディショナ４は、太陽電池アレイ１から出力され、集電ケーブル２、接続箱３、及び配線６を経由して送電された直流電力を交流電力に変換する。 The power conditioner 4 converts DC power output from the solar cell array 1 and transmitted via the current collecting cable 2, the connection box 3, and the wiring 6 into AC power.
分電盤５は、パワーコンディショナ４から配線６を介して給電された電力を屋内に分岐させるものであり、当該電力を配電する分岐回路のほか、漏電が発生すると、自動的に電気を遮断する漏電遮断機や、電気の契約容量や電線の許容電流を超えた電気が流れたときに作動する配線用遮断機等が納まっている。 The distribution board 5 divides the power supplied from the power conditioner 4 through the wiring 6 indoors. In addition to the branch circuit that distributes the power, the electricity is automatically cut off when a leakage occurs. In addition, there are earth leakage breakers that shut down, wiring breakers that operate when electricity exceeding the contracted capacity of electricity and the allowable current of electric wires flows.
負荷７は、パワーコンディショナ４及び配線６を介して給電された電力を消費する、テレビ、エアーコンディショナ、冷蔵庫等の家庭用交流機器や、商用系統、ないしはこれらの組合せである。 The load 7 is a household AC device such as a television, an air conditioner, and a refrigerator, a commercial system, or a combination thereof that consumes power supplied through the power conditioner 4 and the wiring 6.
集電ケーブル２は、太陽電池アレイ１より出力される電力を接続箱３へ導出するためのケーブルである。
この集電ケーブル２は、図２に示すように、正極用集電ケーブル２ａ（図２（ａ））と負極用集電ケーブル２ｂ（図２（ｂ））とがある。
集電ケーブル２ａは、接続箱３の入力端子に接続されるコネクタが先端に接続された幹線ケーブル２１が、分岐部２２において２本の支線ケーブル２３、２５に分岐し、夫々その先端に分岐コネクタ２４、２６が接続された構造を有しており、分岐部２２において、幹線ケーブル２１と、支線ケーブル２３、２５とは電気的に接続している。
また、集電ケーブル２ｂも同様に、接続箱３の入力端子に接続されるコネクタが先端に接続された幹線ケーブル３１が、分岐部３２において２本の支線ケーブル３３、３５に分岐し、夫々その先端に分岐コネクタ３４、３６が接続された構造を有しており、分岐部３２において、幹線ケーブル３１と、支線ケーブル３３、３５とは電気的に接続している。
なお、集電ケーブル２ａと集電ケーブル２ｂとは、互いに異なる被覆色とするとよい。これにより、正極、負極を混同した誤接続を防止することができる。
The current collecting cable 2 is a cable for leading the power output from the solar cell array 1 to the connection box 3.
As shown in FIG. 2, the current collecting cable 2 includes a positive current collecting cable 2a (FIG. 2 (a)) and a negative current collecting cable 2b (FIG. 2 (b)).
In the current collecting cable 2a, a trunk cable 21 having a connector connected to an input terminal of the connection box 3 connected to the tip branches into two branch cables 23 and 25 at a branching portion 22, and a branch connector is connected to the tip of each. 24 and 26 are connected to each other, and the trunk cable 21 and the branch cables 23 and 25 are electrically connected to each other at the branch portion 22.
Similarly, in the current collecting cable 2b, the trunk cable 31 having a connector connected to the input terminal of the connection box 3 connected to the tip branches into two branch cables 33 and 35 at the branching portion 32, respectively. It has a structure in which branch connectors 34 and 36 are connected to the tips, and the trunk cable 31 and the branch cables 33 and 35 are electrically connected at the branch portion 32.
Note that the current collecting cable 2a and the current collecting cable 2b may have different coating colors. Thereby, the misconnection which mixed the positive electrode and the negative electrode can be prevented.
幹線ケーブル２１、３１、及び支線ケーブル２３、２５、３３、３５は、配電用ケーブル、例えばＣＶ（架橋ポリエチレン絶縁・ビニルシース）ケーブル、ＣＥ（架橋ポリエチレン絶縁・ポリエチレンシース）ケーブル、ビニル絶縁ビニルシースケーブル、ＶＣＴ（ビニル絶縁キャブタイヤ）ケーブルを用いることができる。
分岐コネクタ２４、２６、３４、３６は、合成樹脂絶縁材料からなる被覆部材に覆われている。
分岐部２２、３２、分岐コネクタ２４、２６、３４、３６の外装部材には、保護シースと同様の電気絶縁材料を用いることができる。
The trunk cables 21, 31 and the branch cables 23, 25, 33, 35 are power distribution cables such as CV (crosslinked polyethylene insulation / vinyl sheath) cables, CE (crosslinked polyethylene insulation / polyethylene sheath) cables, vinyl insulation vinyl sheath cables, VCT. (Vinyl insulated cabtyre) cable can be used.
The branch connectors 24, 26, 34, and 36 are covered with a covering member made of a synthetic resin insulating material.
For the exterior members of the branch portions 22 and 32 and the branch connectors 24, 26, 34 and 36, an electrically insulating material similar to the protective sheath can be used.
支線ケーブル２３、３３は、夫々支線ケーブル２５、３５より長く、その差は、縦方向に隣接する太陽電池モジュール１０１〜１８０の端子箱間の距離に相当する。 The branch cables 23 and 33 are longer than the branch cables 25 and 35, respectively, and the difference corresponds to the distance between the terminal boxes of the solar cell modules 101 to 180 adjacent in the vertical direction.
また、分岐コネクタ２４、２６は、内周面に凹凸を有した接続穴の中央部にプラグ状の雄型接続端子を有した雄型構造からなる。
他方、分岐コネクタ３４、３６は、外周面に凹凸を有した挿入部の中央部にレセプタクル状の雌型接続端子を有した雌型構造からなる。
なお、本例においては、正極用コネクタが雄型構造を、負極用コネクタはが雌型構造をとっているが、正極用コネクタが雌型構造を、負極用コネクタが雄型構造をとってもよい。
Each of the branch connectors 24 and 26 has a male structure having a plug-shaped male connection terminal at the center of a connection hole having irregularities on the inner peripheral surface.
On the other hand, the branch connectors 34 and 36 have a female structure having a receptacle-shaped female connection terminal at the center of an insertion portion having an uneven outer peripheral surface.
In this example, the positive electrode connector has a male structure and the negative electrode connector has a female structure, but the positive electrode connector may have a female structure and the negative electrode connector may have a male structure.
図３は、太陽電池モジュール１０１〜１８０及び集電ケーブル２の電気的接続を示す結線図であり、図４は、その一部を拡大した図である。なお、図３（ａ）及び図４（ａ）は左側端部を、図３（ｂ）及び図４（ｂ）は右側端部を示す。
各太陽電池モジュール１０１〜１８０は、夫々の裏面に取り付けられた端子箱１０１ａ〜１８０ａから引き出された２本の単芯の引き出し線とその先端に接続されたコネクタ１０１ｂ〜１８０ｂないしはコネクタ１０１ｃ〜１８０ｃとからなる出力端を有しており、当該出力端からは太陽光により発生した電力が出力され、当該出力端の一方は正極用、他方は負極用である。
FIG. 3 is a connection diagram showing electrical connection between the solar cell modules 101 to 180 and the current collecting cable 2, and FIG. 4 is an enlarged view of a part thereof. 3A and 4A show the left end, and FIGS. 3B and 4B show the right end.
Each of the solar cell modules 101 to 180 includes two single-core lead wires drawn out from terminal boxes 101a to 180a attached to the respective back surfaces, and connectors 101b to 180b or connectors 101c to 180c connected to the tips of the lead wires. The electric power generated by sunlight is output from the output end, and one of the output ends is for the positive electrode and the other is for the negative electrode.
また、太陽電池モジュール１０１〜１８０は、夫々が隣接する太陽電池モジュール１０１〜１８０と直列に接続している。
即ち、図４（ａ）において、太陽電池モジュール１０９、１１９を例にとると、太陽電池モジュール１０９の端子箱１０９ａから導出される出力ケーブルの雄型コネクタ１０９ｃと、対応する太陽電池モジュール１１９の端子箱１１９ａから導出される出力ケーブルの雌型コネクタ１１９ｂとが雌雄嵌合により直列に接続している。
Moreover, the solar cell modules 101-180 are connected in series with the adjacent solar cell modules 101-180, respectively.
That is, in FIG. 4A, taking the solar cell modules 109 and 119 as an example, the male connector 109c of the output cable led out from the terminal box 109a of the solar cell module 109 and the corresponding terminal of the solar cell module 119 The female connector 119b of the output cable led out from the box 119a is connected in series by male-female fitting.
また、太陽電池モジュール１０１〜１８０が形成する太陽電池アレイ１の左側端部に位置する太陽電池モジュール１０１、１０３、１０５、１０７、１０９のコネクタ１０１ｂ、１０３ｂ、１０５ｂ、１０７ｂ、１０９ｂは、集電ケーブル２ａの分岐コネクタ２４と、また、太陽電池モジュール１０２、１０４、１０６、１０８、１１０のコネクタ１０２ｂ、１０４ｂ、１０６ｂ、１０８ｂ、１１０ｂは、集電ケーブル２ａの分岐コネクタ２６と接続している。
同様にして、太陽電池アレイ１の右側端部に位置する太陽電池モジュール１７１、１７３、１７５、１７７、１７９のコネクタ１７１ｃ、１７３ｃ、１７５ｃ、１７７ｃ、１７９ｃは、集電ケーブル２ｂの分岐コネクタ３４と、太陽電池モジュール１７２、１７４、１７６、１７８、１８０のコネクタ１７２ｃ、１７４ｃ、１７６ｃ、１７８ｃ、１８０ｃは、集電ケーブル２ｂの分岐コネクタ３６と接続している。
The connectors 101b, 103b, 105b, 107b, 109b of the solar cell modules 101, 103, 105, 107, 109 located at the left end of the solar cell array 1 formed by the solar cell modules 101-180 are current collecting cables. The branch connector 24 of 2a and the connectors 102b, 104b, 106b, 108b, 110b of the solar cell modules 102, 104, 106, 108, 110 are connected to the branch connector 26 of the current collecting cable 2a.
Similarly, the connectors 171c, 173c, 175c, 177c, 179c of the solar cell modules 171, 173, 175, 177, 179 located at the right end of the solar cell array 1 are connected to the branch connector 34 of the current collecting cable 2b, The connectors 172c, 174c, 176c, 178c, 180c of the solar cell modules 172, 174, 176, 178, 180 are connected to the branch connector 36 of the current collecting cable 2b.
以上のように結線された太陽電池アレイ１及び集電ケーブル２において、太陽電池ユニット１が太陽光を受けて発生した電力は、端子箱１０１ａ〜１８０ａから集電ケーブル２、接続箱３を介してパワーコンディショナ４に給電され、当該給電された電力は分電盤５を経て、負荷７へと給電される。 In the solar cell array 1 and the current collecting cable 2 connected as described above, the electric power generated when the solar cell unit 1 receives sunlight passes through the current collecting cable 2 and the connection box 3 from the terminal boxes 101a to 180a. Power is supplied to the power conditioner 4, and the supplied power is supplied to the load 7 through the distribution board 5.
以上により、太陽電池モジュール２枚を並列に接続するのに１つの集電ケーブルで済むことから、太陽電池モジュール１枚に対して一つの集電ケーブルを用いる場合と比べて、接続箱の直流入力回路数を半分に減らすことができるので、システム全体の部品点数を減らして、コスト削減を図ることができると共に、配線作業、接続箱への結線作業の負担を低減して、施工時の作業性を向上させることができる。 As described above, since only one current collecting cable is required to connect two solar cell modules in parallel, the DC input of the junction box is compared with the case where one current collecting cable is used for one solar cell module. Since the number of circuits can be reduced by half, the number of parts in the entire system can be reduced to reduce costs, and the burden of wiring work and connection work to the connection box can be reduced to improve workability during construction. Can be improved.
次に、本発明の第二の実施形態に係る集電ケーブル２について、図５及び図６を参照して説明する。
本実施形態において、集電ケーブル２は支線ケーブルを３本有している。
一方、図５に示すように、本例における集電ケーブル２も、上記第一の実施形態に係る集電ケーブル２と同様、正極用集電ケーブル２ｃ（図５（ａ））、負極用集電ケーブル２ｄ（図５（ｂ））とがある。
Next, the current collection cable 2 which concerns on 2nd embodiment of this invention is demonstrated with reference to FIG.5 and FIG.6.
In the present embodiment, the current collecting cable 2 has three branch cables.
On the other hand, as shown in FIG. 5, the current collecting cable 2 in this example is the same as the current collecting cable 2 according to the first embodiment, the positive current collecting cable 2 c (FIG. 5A), the negative current collecting cable. There is an electric cable 2d (FIG. 5B).
集電ケーブル２ｃは、接続箱３の入力端子に接続されるコネクタが先端に接続された幹線ケーブル４１が、分岐部４２において３本の支線ケーブル４３、４５、４７に分岐し、夫々その先端に分岐コネクタ４４、４６、４８が接続された構造を有しており、分岐部４２において、幹線ケーブル４１と、支線ケーブル４３、４５、４７とは電気的に接続している。 In the current collecting cable 2c, a trunk cable 41 having a connector connected to the input terminal of the connection box 3 connected to the tip branches into three branch cables 43, 45, 47 at a branching portion 42, and is connected to the tip of each. The branch connectors 44, 46, and 48 are connected, and the trunk cable 41 and the branch cables 43, 45, and 47 are electrically connected at the branch portion 42.
また、集電ケーブル２ｄも同様に、接続箱３の入力端子に接続されるコネクタが先端に接続された幹線ケーブル５１が、分岐部５２において３本の支線ケーブル５３、５５、５７に分岐し、夫々その先端に分岐コネクタ５４、５６、５８が接続された構造を有しており、分岐部５２において、幹線ケーブル５１と、支線ケーブル５３、５５、５７とは電気的に接続している。 Similarly, in the current collecting cable 2d, the trunk cable 51 having the connector connected to the input terminal of the connection box 3 connected to the tip branches into three branch cables 53, 55, 57 at the branching section 52, Each has a structure in which branch connectors 54, 56, and 58 are connected to the tips thereof. At the branch portion 52, the trunk cable 51 and the branch cables 53, 55, and 57 are electrically connected.
なお、幹線ケーブル４１、５１、分岐部４２、５２、支線ケーブル４３、４５、４７、５４、５６、５８、分岐コネクタ４４、４６、４８の材質等は、上記第一の実施形態と同様の構成とすることができる。
また、分岐コネクタ４４、４６、４８は、内周面に凹凸を有した接続穴の中央部にプラグ状の雄型接続端子を有した雄型構造からなる。
他方、分岐コネクタ５４、５６、５８は、外周面に凹凸を有した挿入部の中央部にレセプタクル状の雌型接続端子を有した雌型構造からなる。
なお、本例においては、正極用コネクタが雄型構造を、負極用コネクタはが雌型構造をとっているが、正極用コネクタが雌型構造を、負極用コネクタが雄型構造をとってもよいのは上記第一の実施形態と同様である。
The main cables 41 and 51, the branch portions 42 and 52, the branch cables 43, 45, 47, 54, 56 and 58, the materials of the branch connectors 44, 46 and 48, and the like are the same as those in the first embodiment. It can be.
The branch connectors 44, 46 and 48 have a male structure having a plug-like male connection terminal at the center of a connection hole having irregularities on the inner peripheral surface.
On the other hand, the branch connectors 54, 56, and 58 have a female structure having a receptacle-shaped female connection terminal at the center of the insertion portion having an uneven outer peripheral surface.
In this example, the positive electrode connector has a male structure and the negative electrode connector has a female structure. However, the positive electrode connector may have a female structure, and the negative electrode connector may have a male structure. Is the same as in the first embodiment.
支線ケーブル４３、５３は、夫々支線ケーブル４５、５５より長く、また、支線ケーブル４５、５５は、夫々支線ケーブル４７、５７より長く、夫々の差は、縦方向に隣接する太陽電池モジュール１０１〜１８０の端子箱間の距離に相当する。 The branch cables 43 and 53 are longer than the branch cables 45 and 55, respectively, and the branch cables 45 and 55 are longer than the branch cables 47 and 57, respectively, and the difference between them is the solar cell modules 101 to 180 adjacent in the vertical direction. This corresponds to the distance between the terminal boxes.
図６は、太陽電池モジュール１０１〜１８０及び集電ケーブルの電気的接続を示す結線図の一部拡大図である。なお、図６（ａ）は左側端部を、図６（ｂ）は右側端部を示す。
上記第一の実施形態と同様に、太陽電池モジュール１０１〜１８０は、夫々が隣接する太陽電池モジュール１０１〜１８０と直列に接続している。
FIG. 6 is a partially enlarged view of a connection diagram showing electrical connection between the solar cell modules 101 to 180 and the current collecting cable. 6A shows the left end, and FIG. 6B shows the right end.
Similar to the first embodiment, the solar cell modules 101 to 180 are connected in series with the adjacent solar cell modules 101 to 180, respectively.
また、太陽電池モジュール１０１〜１８０が形成する太陽電池アレイ１の左側端部に位置する太陽電池モジュール１０５、１０８のコネクタ１０５ｂ、１０８ｂは、集電ケーブル２ｃの分岐コネクタ４４と、太陽電池モジュール１０６、１０９のコネクタ１０６ｂ、１０９ｂは、集電ケーブル２ｃの分岐コネクタ４６と、また、太陽電池モジュール１０７、１１０のコネクタ１０７ｂ、１１０ｂは、集電ケーブル２ｃの分岐コネクタ４８と接続している。
同様にして、太陽電池アレイ１の右側端部に位置する太陽電池モジュール１７５、１７８のコネクタ１７５ｃ、１７８ｃは、集電ケーブル２ｄの分岐コネクタ５４と、太陽電池モジュール１７６、１７９のコネクタ１７６ｃ、１７９ｃは、集電ケーブル２ｄの分岐コネクタ５６と、また、太陽電池モジュール１７７、１８０のコネクタ１７７ｃ、１８０ｃは、集電ケーブル２ｄの分岐コネクタ５８と接続している。
Further, the connectors 105b and 108b of the solar cell modules 105 and 108 located at the left end of the solar cell array 1 formed by the solar cell modules 101 to 180 are the branch connector 44 of the current collecting cable 2c, the solar cell module 106, 109 connectors 106b and 109b are connected to the branch connector 46 of the current collecting cable 2c, and connectors 107b and 110b of the solar cell modules 107 and 110 are connected to the branch connector 48 of the current collecting cable 2c.
Similarly, the connectors 175c and 178c of the solar cell modules 175 and 178 located at the right end of the solar cell array 1 are the branch connector 54 of the current collecting cable 2d and the connectors 176c and 179c of the solar cell modules 176 and 179 are. The branch connector 56 of the current collection cable 2d and the connectors 177c and 180c of the solar cell modules 177 and 180 are connected to the branch connector 58 of the current collection cable 2d.
また、太陽電池アレイ１の左側端部に位置する太陽電池モジュール１０１、１０３のコネクタ１０１ｂ、１０３ｂは、集電ケーブル２ａの分岐コネクタ２４と、また、太陽電池モジュール１０２、１０４のコネクタ１０２ｂ、１０４ｂは、集電ケーブル２ａの分岐コネクタ２６と接続している。
同様にして、太陽電池アレイ１の右側端部に位置する太陽電池モジュール１７１、１７３のコネクタ１７１ｃ、１７３ｃは、集電ケーブル２ｂの分岐コネクタ３４と、また、太陽電池モジュール１７２、１７４のコネクタ１７２ｃ、１７４ｃは、集電ケーブル２ｂの分岐コネクタ３６と接続している。
The connectors 101b and 103b of the solar cell modules 101 and 103 located at the left end of the solar cell array 1 are the branch connector 24 of the current collecting cable 2a, and the connectors 102b and 104b of the solar cell modules 102 and 104 are And the branch connector 26 of the current collecting cable 2a.
Similarly, the connectors 171c and 173c of the solar cell modules 171 and 173 located at the right end of the solar cell array 1 are connected to the branch connector 34 of the current collecting cable 2b and the connectors 172c of the solar cell modules 172 and 174, respectively. 174c is connected to the branch connector 36 of the current collecting cable 2b.
以上のように、６つの直流回路を並列に結線するのに、集電ケーブル２ａ、２ｂであれば正・負極各３本必要なところ、集電ケーブル２ｃ、２ｄでは各２本で済むことから、接続箱の直流入力回路数を更に減らすことができる。その結果、システム全体の部品点数を更に減らして、コスト削減を図ることが出来ると共に、配線作業、接続箱への結線作業の負担を低減して、施工時の作業性を向上させることができる。
また、集電ケーブル２ｃ、２ｄを、集電ケーブル２ａ、２ｂと併用することにより、並列に結線する直流回路が奇数である場合にも対応することができる。
As described above, to connect the six DC circuits in parallel, three current collector cables 2a and 2b are required for each of the positive and negative electrodes, whereas two current collector cables 2c and 2d are sufficient for each. The number of DC input circuits in the connection box can be further reduced. As a result, the number of parts of the entire system can be further reduced to reduce costs, and the burden of wiring work and connection work to the connection box can be reduced, thereby improving workability during construction.
Further, by using the current collecting cables 2c and 2d together with the current collecting cables 2a and 2b, it is possible to cope with a case where the number of DC circuits connected in parallel is an odd number.
１・・・太陽電池アレイ、２・・・集電ケーブル、２ａ・・・正極用集電ケーブル、２ｂ・・・負極用集電ケーブル、２ｃ・・・正極用集電ケーブル、２ｄ・・・負極用集電ケーブル、２１・・・幹線ケーブル、２２・・・分岐部、２３・・・支線ケーブル、２４・・・分岐コネクタ、２５・・・支線ケーブル、２６・・・分岐コネクタ、３・・・接続箱、３１・・・幹線ケーブル、３２・・・分岐部、３３・・・支線ケーブル、３４・・・分岐コネクタ、３５・・・支線ケーブル、３６・・・分岐コネクタ、４・・・パワーコンディショナ、４１・・・幹線ケーブル、４２・・・分岐部、４３・・・支線ケーブル、４４・・・分岐コネクタ、４５・・・支線ケーブル、４６・・・分岐コネクタ、４７・・・支線ケーブル、４８・・・分岐コネクタ、５・・・分電盤、５１・・・幹線ケーブル、５２・・・分岐部、５３・・・支線ケーブル、５４・・・分岐コネクタ、５５・・・支線ケーブル、５６・・・分岐コネクタ、５７・・・支線ケーブル、５８・・・分岐コネクタ、６・・・配線、７・・・負荷、１０１〜１８０・・・太陽電池モジュール、１０１ａ〜１８０ａ・・・端子箱、１０１ｂ〜１８０ｂ・・・コネクタ、１０１ｃ〜１８０ｃ・・・コネクタ
DESCRIPTION OF SYMBOLS 1 ... Solar cell array, 2 ... Current collection cable, 2a ... Current collection cable for positive electrodes, 2b ... Current collection cable for negative electrodes, 2c ... Current collection cable for positive electrodes, 2d ... Current collecting cable for negative electrode, 21 ... trunk cable, 22 ... branching portion, 23 ... branch cable, 24 ... branch connector, 25 ... branch cable, 26 ... branch connector, 3. ··· Connection box, 31 ... trunk cable, 32 ... branch, 33 ... branch cable, 34 ... branch connector, 35 ... branch cable, 36 ... branch connector, 4 ... -Power conditioner, 41 ... trunk cable, 42 ... branch, 43 ... branch cable, 44 ... branch connector, 45 ... branch cable, 46 ... branch connector, 47・ Branch cable, 48 ... Branch cable Kuta, 5 ... Distribution board, 51 ... Trunk cable, 52 ... Branch, 53 ... Branch cable, 54 ... Branch connector, 55 ... Branch cable, 56 ... Branch Connector, 57 ... branch cable, 58 ... branch connector, 6 ... wiring, 7 ... load, 101-180 ... solar cell module, 101a-180a ... terminal box, 101b-180b ... Connectors, 101c to 180c ... Connectors
Claims (1)
一の太陽電池モジュール群の一側端部から導出された正極側出力端と、当該一の太陽電池モジュール群と隣り合う太陽電池モジュール群の一側端部から導出された正極側出力端とを第一の集電ケーブルの入力コネクタと夫々接続し、
上記一の太陽電池モジュール群の一側端部から導出された負極側出力端と、上記一の太陽電池モジュール群と隣り合う太陽電池モジュール群の一側端部から導出された負極側出力端とを第二の集電ケーブルの入力コネクタと夫々接続し、
上記第一の集電ケーブル及び上記第二の集電ケーブルのそれぞれにおいて、上記太陽電池モジュールの出力端と接続した入力コネクタが取り付けられた支線ケーブルが上記分岐部を介して上記幹線ケーブルに集約される、
ことを特徴とする集電ケーブルの引き回し構造。 A solar cell module group in which a predetermined number of solar cell modules are connected in series in a row, a positive output terminal is led out to one side end of each solar cell module group, and a negative electrode is connected to the other side end. in the solar cell array comprising features several next to each other so that the output terminal is led out, and a plurality of branch cables input connector is attached to one end, an output connector attached to one end, the plurality at the branch portion of the other end of and a trunk cable to aggregate branch cable, the plurality of branch cables, with exits extend respectively separately from the branch portion, each other, collecting the length corresponding to the distance between the output terminals of the solar cell module is different A cable routing structure for electrically connecting the plurality of solar cell module groups in parallel using a plurality of electric cables,
A positive electrode side output terminal derived from the one end of the one solar cell modules, a positive electrode side output terminal derived from the one end of the solar cell module group adjacent to the solar cell module group of the one Connected to the input connector of the first current collecting cable,
A negative electrode side output terminal derived from the one end of the group the solar cell module of the one, and the negative side output terminal derived from the one end of the solar cell modules adjacent to the solar cell module group in the one Connected to the input connector of the second current collector cable,
In each of the first current collecting cable and the second current collecting cable, the branch line cable to which the input connector connected to the output end of the solar cell module is attached is concentrated on the main line cable via the branch portion. The
A current-collecting cable routing structure.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006354361A JP4117850B1 (en) | 2006-12-28 | 2006-12-28 | Current collecting cable |
| PCT/JP2007/070413 WO2008081636A1 (en) | 2006-12-28 | 2007-10-19 | Current collection cable |
| TW096142250A TW200830077A (en) | 2006-12-28 | 2007-11-08 | Current collection cable |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2006354361A JP4117850B1 (en) | 2006-12-28 | 2006-12-28 | Current collecting cable |
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| JP4117850B1 true JP4117850B1 (en) | 2008-07-16 |
| JP2008166492A JP2008166492A (en) | 2008-07-17 |
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| JP2006354361A Expired - Fee Related JP4117850B1 (en) | 2006-12-28 | 2006-12-28 | Current collecting cable |
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| JP (1) | JP4117850B1 (en) |
| TW (1) | TW200830077A (en) |
| WO (1) | WO2008081636A1 (en) |
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| CN101726018A (en) * | 2008-10-20 | 2010-06-09 | 乐金电子(天津)电器有限公司 | Microwave oven |
| US10992254B2 (en) | 2014-09-09 | 2021-04-27 | Shoals Technologies Group, Llc | Lead assembly for connecting solar panel arrays to inverter |
| CN107124139A (en) * | 2017-06-19 | 2017-09-01 | 苏州快可光伏电子股份有限公司 | Photovoltaic module bifurcation connector and apply its component train |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0625020Y2 (en) * | 1986-09-09 | 1994-06-29 | 三洋電機株式会社 | Solar cell device |
| JPH07131045A (en) * | 1993-06-23 | 1995-05-19 | Kubota Corp | Electric member for solar cell generator |
| JPH0730557U (en) * | 1993-11-16 | 1995-06-06 | 株式会社クボタ | Solar cell equipment |
| JPH10135504A (en) * | 1996-10-31 | 1998-05-22 | Tokyo Electric Power Co Inc:The | Solar cell module wiring connector and method for connecting it |
| JPH11299126A (en) * | 1998-04-10 | 1999-10-29 | Sanyo Electric Co Ltd | Photovoltaic power generation system |
| JP3469807B2 (en) * | 1999-03-24 | 2003-11-25 | 鐘淵化学工業株式会社 | Solar cell power generation device, wiring device for the device, and wiring structure |
| JP2006032501A (en) * | 2004-07-13 | 2006-02-02 | Fuji Electric Holdings Co Ltd | Solar battery module and its inspecting method |
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2006
- 2006-12-28 JP JP2006354361A patent/JP4117850B1/en not_active Expired - Fee Related
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| TW200830077A (en) | 2008-07-16 |
| JP2008166492A (en) | 2008-07-17 |
| WO2008081636A1 (en) | 2008-07-10 |
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