JPH08116628A - ソーラ断路器 - Google Patents

ソーラ断路器

Info

Publication number
JPH08116628A
JPH08116628A JP6248996A JP24899694A JPH08116628A JP H08116628 A JPH08116628 A JP H08116628A JP 6248996 A JP6248996 A JP 6248996A JP 24899694 A JP24899694 A JP 24899694A JP H08116628 A JPH08116628 A JP H08116628A
Authority
JP
Japan
Prior art keywords
solar
case
mounting base
switch
diode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP6248996A
Other languages
English (en)
Inventor
Kenji Ando
健志 安藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Kogyo Co Ltd
Original Assignee
Nitto Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nitto Kogyo Co Ltd filed Critical Nitto Kogyo Co Ltd
Priority to JP6248996A priority Critical patent/JPH08116628A/ja
Publication of JPH08116628A publication Critical patent/JPH08116628A/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

(57)【要約】 【目的】 結線作業の施行性に優れ、しかもダイオード
の過熱を防止できるソーラ断路器を提供する。 【構成】 ケース1の内部に、少なくとも断路用の接点
2とダイオード等の逆流防止素子4とを組み込む。この
逆流防止素子4の放熱板5を取付けベース8と密着する
ケース1の底面に設け、取付けベース8への放熱を円滑
に行わせる。

Description

【発明の詳細な説明】
【0001】
【産業上の利用分野】本発明は、太陽光発電システムに
おいて用いられるソーラ断路器に関するものである。
【0002】
【従来の技術】太陽光発電システムにおいては、一般に
5〜8組の太陽電池ユニットアレイが用いられており、
これらの太陽電池ユニットアレイからの直流電流を接続
箱(分電盤)に集めてインバータへ供給する構成が取ら
れている。この接続箱の内部には、図8に示すように断
路器21、サージ吸収器22、接続端子台23、逆流防止素子
24、開閉器25などが組み込まれている。なお26は太陽電
池ユニットアレイ、27はインバータである。ところが図
8に示したような従来の接続箱の内部には多くの機器を
組み込む必要があるため、回路の組み立てが複雑であ
り、また結線の施行性が悪いという欠点がある。
【0003】そこで本発明者は、図1、図2に示すよう
に単一のケース1の内部に、断路用の接点2と、サージ
吸収器3と、逆流防止素子4とを組み込んだソーラ断路
器を開発中である。このソーラ断路器を使用すれば、図
3に示すように太陽電池ユニットアレイの数に対応する
ソーラ断路器を接続箱の内部に整然と配列することがで
き、しかも結線作業も大幅に簡素化できるのでトータル
コストの低減に大きく寄与するものと考えられる。
【0004】ところが、ソーラ断路器の逆流防止素子4
として使用されるダイオードは作動中に発熱するため、
図2に示すようにケース1の内部に収納すると過熱によ
って寿命が短くなり、機器の信頼性を低下させるおそれ
があることが判明した。
【0005】
【発明が解決しようとする課題】本発明は上記した従来
の問題点を解決し、結線作業の施行性に優れ、しかもダ
イオードの過熱による信頼性の低下を防止したソーラ断
路器を提供するためになされたものである。
【0006】
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明のソーラ断路器は、ケースの内部
に、少なくとも断路用の接点と逆流防止素子とを組み込
むとともに、この逆流防止素子の放熱板を取付けベース
と密着するケースの底面に設けたことを特徴とするもの
である。
【0007】
【作用】本発明のソーラ断路器は、ケースの内部に少な
くとも断路用の接点と逆流防止素子とを組み込んだもの
であるから、接続箱の内部の配列を簡素化することがで
き、結線の施行性を向上させることができる。しかも、
逆流防止素子の放熱板をケースの底面に設けて取付けベ
ースと密着させたため、逆流防止素子として使用される
ダイオードの過熱を防止し、機器の信頼性を高めること
ができる。
【0008】
【実施例】以下に本発明を図示の実施例によって更に詳
細に説明する。図4は本発明の第1の実施例のソーラ断
路器を示すもので、1はケース、2は断路用の接点、4
はダイオードからなる逆流防止素子、5はこの逆流防止
素子4に取り付けられた放熱板、6は太陽電池ユニット
アレイ側の端子、7はインバータ側の端子である。この
ようなソーラ断路器は取付けベース8に固定されるので
あるが、本発明では逆流防止素子4の放熱板5を、取付
けベース8と密着するケース1の底面に設けてある。
【0009】このように構成しておけば、逆流防止素子
4で発生した熱は放熱板5を介して取付けベース8に円
滑に移動するので、逆流防止素子4は常に冷却されるこ
ととなり、素子の過熱による信頼性の低下を防止するこ
とが可能となる。
【0010】図5は放熱板5と取付けベース8との密着
性をより高めるために、放熱板5をケース1の底面から
わずかに突出させた第2の実施例を示すものである。し
かしながら、図5の構造ではケース1を取付けベース8
に取り付ける際に取付用ねじ9を強く締め過ぎると、突
出部に過大な荷重が発生して破損その他の強度的な問題
を生ずる可能性がある。
【0011】そこで図6に示す第3の実施例では、逆流
防止素子4を載せた放熱板5をばね等の弾性体10により
ケース1の底面から突出するように取付けてある。この
ようにしておけば、ケース1を取付けベース8に固定し
たとき放熱板5は適度な力で取付けベース8に押圧さ
れ、熱移動が確実に行われるとともに強度的な問題を回
避することができる。
【0012】また図7に示す第3の実施例では、ケース
1の底面全体を放熱板11とし、逆流防止素子4の放熱板
5を放熱板11と密着させてある。このようにしておけ
ば、ケース1を取付けベース8に固定したとき放熱板11
は必ず取付けベース8に密着することとなり、熱移動が
確実に行われるとともに強度的な問題が生ずるおそれが
ない。
【0013】
【発明の効果】以上に説明したように、本発明のソーラ
断路器はケースの内部に少なくとも断路用の接点と逆流
防止素子とを組み込んだものであるから、これを接続箱
の内部に組み込めば、結線の施行性を向上させることが
できる利点がある。しかも逆流防止素子の放熱板を取付
けベースと密着するケースの底面に設けたので、素子か
ら発生する熱を円滑に取付けベースに放熱することがで
き、素子の過熱による信頼性の低下を防止することがで
きる。よって本発明は太陽光発電システムにおいて用い
られるソーラ断路器として、価値の高いものである。
【図面の簡単な説明】
【図1】ソーラ断路器の斜視図である。
【図2】ソーラ断路器の回路図である。
【図3】ソーラ断路器の結線図である。
【図4】第1の実施例を示す断面図である。
【図5】第2の実施例を示す断面図である。
【図6】第3の実施例を示す断面図である。
【図7】第4の実施例を示す断面図である。
【図8】従来例を示す回路図である。
【符号の説明】
1 ケース 2 断路用の接点 3 サージ吸収器 4 ダイオードからなる逆流防止素子 5 逆流防止素子の放熱板 6 太陽電池ユニットアレイ側の端子 7 インバータ側の端子 8 取付けベース 9 取付用ねじ 10 弾性体 11 放熱板

Claims (3)

    【特許請求の範囲】
  1. 【請求項1】 ケースの内部に、少なくとも断路用の接
    点と逆流防止素子とを組み込むとともに、この逆流防止
    素子の放熱板を取付けベースと密着するケースの底面に
    設けたことを特徴とするソーラ断路器。
  2. 【請求項2】 放熱板を弾性体により取付けベースと密
    着させた請求項1に記載のソーラ断路器。
  3. 【請求項3】 ケースの底面全体を放熱板とした請求項
    1に記載のソーラ断路器。
JP6248996A 1994-10-14 1994-10-14 ソーラ断路器 Withdrawn JPH08116628A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6248996A JPH08116628A (ja) 1994-10-14 1994-10-14 ソーラ断路器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6248996A JPH08116628A (ja) 1994-10-14 1994-10-14 ソーラ断路器

Publications (1)

Publication Number Publication Date
JPH08116628A true JPH08116628A (ja) 1996-05-07

Family

ID=17186467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6248996A Withdrawn JPH08116628A (ja) 1994-10-14 1994-10-14 ソーラ断路器

Country Status (1)

Country Link
JP (1) JPH08116628A (ja)

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WO2006057342A1 (ja) * 2004-11-25 2006-06-01 Sansha Electric Manufacturing Company, Limited 太陽電池モジュール用接続具
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US8823218B2 (en) 2007-11-02 2014-09-02 Tigo Energy, Inc. System and method for enhanced watch dog in solar panel installations
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