JP3644560B2

JP3644560B2 - Capacitor, capacitor coupling mechanism and coupling method thereof

Info

Publication number: JP3644560B2
Application number: JP23451996A
Authority: JP
Inventors: 浩司川辺; 敦稲葉; 智樋山
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 1996-09-04
Filing date: 1996-09-04
Publication date: 2005-04-27
Anticipated expiration: 2016-09-04
Also published as: JPH1079322A

Description

【０００１】
【発明の属する技術分野】
本発明はコンデンサ、コンデンサの連結機構及びその連結方法に関する。
【０００２】
【従来の技術】
電気二重層コンデンサとしては、特開平５−３１５１９０号公報「チップ型電気二重層コンデンサ」が知られている。
上記公報の技術は、小型で等価直列抵抗が小さく、プリント基盤への自動搭載が可能で実装安定性が良いチップ型電気二重層コンデンサを提供するものであり、電気二重層コンデンサ素子９と、この素子９間を接続する導電性セパレータ１０と、この導電性セパレータ１０を上下に一体化した素子積層体９ａと、この素子積層体９ａをモールド成形して被覆する絶縁樹脂１とが開示されている。
【０００３】
【発明が解決しようとする課題】
上記の技術では、素子積層体９ａをモールド成形するので、例えば、１つの素子が不良となった場合に電気二重層コンデンサ全体を交換しなければならないという不都合がある。
そこで、本発明の目的は、電気的接続を容易にし、且つ交換の楽なコンデンサ、ンデンサの連結機構及びその連結方法を提供することにある。
【０００４】
【課題を解決するための手段】
上記目的を達成するために本発明の請求項１は、正極と負極との一方に右めねじ、他方に左めねじを開けた。
正極と負極とに異なるめねじが形成されるため、正極と負極とを識別することができ、連結するときに誤組付けすることがない。
【０００５】
請求項２は、一方のコンデンサの電極端子に右めねじ、他方のコンデンサの電極端子に左めねじを形成し、一端に右おねじ、他端に左おねじを切った連結ねじを右・左めねじにねじ込み、この連結ねじを回転させることによりコンデンサ同士を連結する。
【０００６】
コンデンサ同士の電気的、且つ機械的連結が容易となり、また、コンデンサの交換が楽になる。更に、電極を連結ねじで強固に締結するので、電極と連結ねじとの接触抵抗を小さくすることができる。
【０００７】
請求項３は、連結する二つのコンデンサのそれぞれの電極端子にめねじを形成し、螺合可能な二つのねじ部材からなる連結部材のそれぞれにおねじを形成し、これらおねじをめねじにそれぞれねじ込み、二つのねじ部材同士を螺合させることによりコンデンサ同士を連結する。
【０００８】
連結部材を二つのねじ部材にしたことで、それぞれのねじ部材を予め電極端子に取付けることができ、且つ連結作業は二つのねじ部材同士を螺合するだけで行うことができるので、コンデンサ同士の電気的、且つ機械的連結が容易となり、また、コンデンサの交換が楽になる。更に、電極を連結部材で強固に締結するので、電極と連結部材との接触抵抗を小さくすることができる。
【０００９】
請求項４は、電極端子に右めねじを形成した一方のコンデンサと、電極端子に左めねじを形成した他方のコンデンサと、一端に右おねじ、他端に左おねじを切った連結ねじとを準備する工程と、一方のコンデンサの電極端子に他方のコンデンサの電極端子を連結ねじを介して向い合せて当接させる工程と、連結ねじを回転させ右・左おねじを右・左めねじにねじ込んでコンデンサ同士を連結する工程とからなる。
【００１０】
コンデンサ同士の電気的、且つ機械的連結が容易となり、また、コンデンサの交換が楽になる。更に、電極を連結ねじで強固に締結するので、電極と連結ねじとの接触抵抗を小さくすることができる。
【００１１】
【発明の実施の形態】
本発明の実施の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は本発明に係るコンデンサの連結機構を示す分解斜視図であり、コンデンサとしては、電気自動車に使用する電気二重層コンデンサを組込んだコンデンサ・モジュールを示す。
【００１２】
コンデンサ・モジュール１０は、直方体の上面に正極端子Ａと、負極端子Ｂと、接続端子Ｅと、接続端子Ｈ，Ｊ（図３参照）を有するケーブル付きコネクタＭとを備える。それぞれの端子については、後で詳述する。
【００１３】
図に下側に示すコンデンサ・モジュール１０の正極端子Ａと図の上側に示す上下逆にしたコンデンサ・モジュール１０Ｎの負極端子Ｂとの接続は、連結ボルト１１にナット１２，１２及び回路基板２０，２０Ｎを介して行う。なお、コンデンサ・モジュール１０Ｎ及び回路基板２０Ｎは、それぞれコンデンサ・モジュール１０及び回路基板２０と同一のものであるが、説明の都合上、符号を変えた。
【００１４】
ボルト１３，１３は、コンデンサ・モジュール１０，１０Ｎの接続端子Ｅ，Ｅと回路基板２０，２０Ｎとのそれぞれの電気的導通を図るものである。
コンデンサ・モジュール１０の負極端子Ｂと図示せぬコンデンサ・モジュールの正極端子との連結を、連結ボルト１１Ｐにナット１２Ｐ、回路基板２０を介して行う。
コンデンサ・モジュール１０Ｎの正極端子Ａと別の図示せぬコンデンサ・モジュールの負極端子との接続は、連結ボルト１１Ｑにナット１２Ｑ、回路基板２０Ｎを介して行う。
【００１５】
図２は本発明に係る電極端子の連結機構を示す断面図であり、下側のコンデンサ・モジュール１０の正極端子Ａは右めねじ１０ａを有し、上側のコンデンサ・モジュール１０Ｎの負極端子Ｂは左めねじ１０ｂを有する。
連結ねじ１１は、中央に設けた六角部１１ａと、この六角部１１ａの両側に形成した右おねじ１１ｂ及び左おねじ１１ｃとを有する。
【００１６】
下側のコンデンサ・モジュール１０の正極端子Ａと上側のコンデンサ・モジュール１０Ｎの負極端子Ｂとの連結は、次の順で行う。
まず、コンデンサ・モジュール１０，１０Ｎと、連結ボルト１１とを準備する。
連結ボルト１１には、予め右おねじ１１ｂ及び左おねじ１１ｃの奥側にナット１２，１２をねじ込んでおく。
【００１７】
次に、コンデンサ・モジュール１０の正極端子Ａに回路基板２０を載せ、正極端子Ａの右めねじ１０ａに回路基板２０の取付け用の孔２１を合せる。
この状態で、連結ねじ１１の右おねじ１１ｂを孔２１に挿入し、右めねじ１０ａの開口部に当てる。
【００１８】
この後、連結ねじ１１の左おねじ１１ｃに回路基板２０Ｎの取付け用の孔２３を嵌め、連結ねじ１１の左おねじ１１ｃの先端にコンデンサ・モジュール１０Ｎの負極端子Ｂの左めねじ１０ｂ開口部を当てる。
そして、連結ねじ１１の六角部１１ａにスパナを当て、連結ねじ１１を回転させて、正極端子Ａの右めねじ１０ａに連結ねじ１１の右おねじ１１ｂを、負極端子Ｂの左めねじ１０ｂに連結ねじ１１の左おねじ１１ｃをねじ込む。
そして、ナット１２，１２を締め込んで回路基板２０，２０Ｎを固定する。
【００１９】
コンデンサ・モジュール１０の負極端子Ｂについても同様に行う。なお、連結ねじ１１の回転を、コンデンサ・モジュール１０の正・負極端子Ａ，Ｂ側で同時に同じ角度ずつ行えば、両方の連結ねじ１１のねじ込み量が同じになり、両方の連結ねじ１１を無理なく回転させることができ、且つ、コンデンサ・モジュール１０Ｎが傾くことはない。
【００２０】
コンデンサ・モジュール１０の正極端子Ａとコンデンサ・モジュール１０Ｎの負極端子Ｂとの連結は、次の方法で行っても良い。
予めナット１２，１２を連結ボルト１１の右おねじ１１ｂ及び左おねじ１１ｃの奥側にねじ込んでおく。
【００２１】
次に、連結ねじ１１とコンデンサ・モジュール１０の正極端子Ａとの間に回路基板２０を介し、連結ねじ１１をスパナで回転させて、連結ねじ１１の右おねじ１１ｂを正極端子Ａの右めねじ１０ａに少しねじ込んで、連結ねじ１１を自立させる。
【００２２】
この後、連結ねじ１１の左おねじ１１ｃに回路基板２０Ｎの孔２１をはめ込み、連結ねじ１１の左おねじ１１ｃの先端にコンデンサ・モジュール１０Ｎの負極端子Ｂの左めねじ１０ｂ開口部を当接させる。
【００２３】
その後、連結ねじ１１をスパナで回転させて、正極端子Ａの右めねじ１０ａに連結ねじ１１の右おねじ１１ｂを、負極端子Ｂの左めねじ１０ｂに連結ねじ１１の左おねじ１１ｃをねじ込む。
そして、ナット１２，１２を締め込んで回路基板２０，２０Ｎを固定する。
コンデンサ・モジュール１０の負極端子Ｂについても同様に行う。
【００２４】
この連結方法によると、連結ねじ１１を自立させることで、連結ねじ１１の左おねじ１１ｃ先端にコンデンサ・モジュール１０Ｎの負極端子Ｂの左めねじ１０ｂの開口部を当接させやすくなり、連結作業を容易に行うことができる。
【００２５】
以上のように、一方のコンデンサ・モジュール１０の正極端子Ａに右めねじ１０ａ、他方のコンデンサ・モジュール１０Ｎの負極端子Ｂに左めねじ１０ｂを形成し、一端に右おねじ１１ｂ、他端に左おねじ１１ｃを切った連結ねじ１１を右・左めねじ１０ａ，１０ｂにねじ込み、この連結ねじ１１を回転させることにより２つのコンデンサ・モジュール１０，１０Ｎを電気的に、且つ機械的に容易に連結することができ、また、コンデンサ・モジュール１０，１０Ｎの交換を楽に行うことができる。
【００２６】
更に、正・負極端子Ａ，Ｂを連結ねじ１１で強固に締結することができ、正・負極端子Ａ，Ｂと連結ねじ１１との接触抵抗を小さくすることができる。
この実施の形態では、正極端子Ａに右めねじ１０ａ、負極端子Ｂに左めねじ１０ｂを形成したが、この逆に正極端子Ａに左めねじ、負極端子Ｂに右めねじを形成してもよい。
【００２７】
図３は本発明に係る回路基板の平面図であり、回路基板２０は、基板２０ａと、連結ねじ１１（図１参照）が挿通する孔２１と、図２に示したナット１２を介して正極端子Ａ（図１参照）に接続する円形の接続端子Ａ１と、ボルト１３（図１参照）が挿通する孔２２と、この孔２２の回りに形成してボルト１３によってコンデンサ・モジュール１０の接続端子Ｅに導通する接続端子Ｅ１と、連結ねじ１１Ｐ（図１参照）が挿通する孔２３と、図１に示したナット１２Ｐを介して負極端子Ｂ（図１参照）に接続する円形の接続端子Ｂ１と、スイッチ素子２４と、接続端子Ｈ１，Ｊ１を有するコネクタ２５と、検出ターミナル２６とからなる。
【００２８】
検出ターミナル２６は、接続端子Ｇ２，Ｋ２，Ｈ２，Ｊ２，Ｌ２を有する。
上記の接続端子Ａ１，Ｂ１，Ｅ１、スイッチ素子２４、コネクタ２５、検出ターミナル２６については図４にて詳述する。
【００２９】
図４は本発明に係るコンデンサ・モジュールの電気回路の説明図であり、コンデンサ・モジュール１０は、モジュール本体１５と、回路基板２０とからなる。モジュール本体１５は、電気二重層コンデンサ１６と、この電気二重層コンデンサ１６の温度を検出する熱電対１７と、上記に述べた正極端子Ａと、負極端子Ｂと、接続端子Ｅ，Ｈ，Ｊとからなる。
接続端子Ｅと負極端子Ｂとは、電気二重層コンデンサ１６に接続する。
接続端子Ｈ，Ｊは、熱電対１７に接続する。
【００３０】
電気二重層コンデンサ１６は、大容量（例えば、数ファラッド）のコンデンサで構成し、図示せぬ外部充電器で充電して所定の電気量（電荷量）を蓄積し、複数個の充電されたコンデンサを接続して電気自動車等のモータを駆動するために必要な電力に対応した電気量を蓄えるものである。
熱電対１７は、電気二重層コンデンサ１６の温度を測定し、電気二重層コンデンサ１６に充電する際に発生する熱による温度上昇を監視するものである。
【００３１】
回路基板２０は、スイッチ素子２４と、バイパス導体２７と、接続端子Ａ１，Ｅ１，Ｈ１，Ｊ１，Ｂ１，Ｇ２，Ｋ２，Ｈ２，Ｊ２，Ｌ２とを備える。
接続端子Ａ１，Ｅ１，Ｈ１，Ｊ１，Ｂ１は、それぞれモジュール本体１５の正極端子Ａ、接続端子Ｅ，Ｈ，Ｊ、負極端子Ｂに接続する。
また、接続端子Ａ１，Ｅ１，Ｂ１は、それぞれスイッチ素子２４の端子Ｓ、接点Ｃ、接点Ｄに接続する。
【００３２】
更に、接続端子Ｂ１は接続端子Ｌ２に、接続端子Ｅ１は接続端子Ｋ２に接続する。即ち、接続端子Ｂ１，Ｅ１は電気二重層コンデンサ１２の両極板に導通し、この接続端子Ｂ１，Ｅ１によって電気二重層コンデンサ１２の電圧を検出することができる。
【００３３】
接続端子Ｈ１，Ｊ１は、それぞれ接続端子Ｈ２，Ｊ２に接続し、接続端子Ｈ２，Ｊ２から、熱電対１７の起電力を出力することができ、この起電力に対応した温度を求めることができる。
接続端子Ｇ２は、スイッチ素子２４へ制御信号を入力するための端子である。
【００３４】
スイッチ素子２４は、制御用の端子を有する１回路２接点形式の電子スイッチで構成し、図示せぬ制御手段からの制御信号に基づいてノーマル状態（実線表示）では電気二重層コンデンサ１６側の接点Ｃを接続端子Ａ１に接続して、コンデンサ・モジュール１０をコンデンサとして利用し、ブレーク状態（破線表示）ではバイパス導体２７側の端子Ｄを接続端子Ａ１に接続してコンデンサ・モジュール１０をショートバーとして使用するものである。
【００３５】
図５（ａ），（ｂ）は本発明に係るコンデンサ・モジュールを連結したコンデンサ・アレーを示す説明図であり、（ａ）は連結状態を示す斜視図、（ｂ）は（ａ）の連結状態を示す模式図を示す。
（ａ）において、コンデンサ・アレー１は、複数のコンデンサ・モジュールＭ１〜Ｍ１１と、コンデンサ・モジュールＭ１の正極端子Ａに取付けた接続ケーブルＣ１と、コンデンサ・モジュールＭ１１の負極端子Ｂに取付けた接続ケーブルＣ２とを備える。ここに示したコンデンサ・モジュールＭ１〜Ｍ１１は、前記コンデンサ・モジュール１０と同じものである。
【００３６】
これらのコンデンサ・モジュールＭ１〜Ｍ１１の連結は、以下の順で行う。
まず、コンデンサ・モジュールＭ１〜Ｍ１１のうち、コンデンサ・モジュールＭ１，Ｍ５，Ｍ９を長手方向に正・負極端子Ａ，Ｂの向きを同じにして並べ、この列の側方にコンデンサ・モジュールＭ３，Ｍ７，Ｍ１１を同じく長手方向に正・負極端子Ａ，Ｂの向きを同じにしてコンデンサ・モジュールＭ１の長さの半分だけずらして並べる。なお、コンデンサ・モジュールＭ１〜Ｍ１１の上面の縦と横の長さの比は１：２とし、正・負極端子Ａ，Ｂを、上面を２等分してできる２つの正方形のそれぞれの中央に位置させる。
【００３７】
次に、コンデンサ・モジュールＭ１，Ｍ３の上方にコンデンサ・モジュールＭ２を配置し、コンデンサ・モジュールＭ１の負極端子Ｂとコンデンサ・モジュールＭ２の正極端子Ａ、コンデンサ・モジュールＭ３の正極端子Ａとコンデンサ・モジュールＭ２の負極端子Ｂとを図２に示した方法で連結する。
【００３８】
同様にして、コンデンサ・モジュールＭ３，Ｍ５にコンデンサ・モジュールＭ４を連結し、コンデンサ・モジュールＭ５，Ｍ７にコンデンサ・モジュールＭ６を連結し、コンデンサ・モジュールＭ７，Ｍ９にコンデンサ・モジュールＭ８を連結し、コンデンサ・モジュールＭ９，Ｍ１１にコンデンサ・モジュールＭ１０を連結する。
【００３９】
（ｂ）において、（ａ）の連結方法により、コンデンサ・モジュールＭ１〜Ｍ１１は電気的に直列接続となる。
これによって、コンデンサ・アレー１の（ａ）に示した接続ケーブルＣ１，Ｃ２から大きな電圧を取出すことができる。
【００４０】
図６（ａ），（ｂ）は本発明に係るコンデンサ・モジュールを連結した別の配列のコンデンサ・アレーを示す説明図であり、（ａ）は連結状態を示す斜視図、（ｂ）は（ａ）の連結状態を示す模式図を示す。
（ａ）において、コンデンサ・アレー１Ａは、複数のコンデンサ・モジュールＭ１〜Ｍ１２と、コンデンサ・モジュールＭ１，Ｍ７の正極端子Ａ，Ａに取付けた接続ケーブルＣ１と、コンデンサ・モジュールＭ６，Ｍ１２の負極端子Ｂ，Ｂに取付けた接続ケーブルＣ２とを備える。
【００４１】
これらのコンデンサ・モジュールＭ１〜Ｍ１２の連結は、以下の順で行う。
まず、コンデンサ・モジュールＭ１〜Ｍ１２のうち、コンデンサ・モジュールＭ１，Ｍ３，Ｍ５を長手方向に正・負極端子Ａ，Ｂの向きを同じにして並べ、この列の側方にコンデンサ・モジュールＭ８，Ｍ１０，Ｍ１２を同じく長手方向に正・負極端子Ａ，Ｂの向きを同じにして並べる。なお、コンデンサ・モジュールＭ１〜Ｍ１２の上面の縦と横の長さの比は１：２とし、正・負極端子Ａ，Ｂを、上面を２等分してできる２つの正方形のそれぞれの中央に位置させる。
【００４２】
次に、コンデンサ・モジュールＭ１，Ｍ８の上方にコンデンサ・モジュールＭ７を配置し、コンデンサ・モジュールＭ１の正極端子Ａとコンデンサ・モジュールＭ７の正極端子Ａ、コンデンサ・モジュールＭ８の正極端子Ａとコンデンサ・モジュールＭ７の負極端子Ｂを図２に示した方法で連結する。
【００４３】
この後、コンデンサ・モジュールＭ１，Ｍ３の上方にコンデンサ・モジュールＭ２を配置し、コンデンサ・モジュールＭ１の負極端子Ｂとコンデンサ・モジュールＭ２の正極端子Ａ、コンデンサ・モジュールＭ３の正極端子Ａとコンデンサ・モジュールＭ２の負極端子Ｂを図２で示した方法で連結する。
同様にして、コンデンサ・モジュールＭ８，Ｍ１０の上方にコンデンサ・モジュールＭ９を配置し、コンデンサ・モジュールＭ８，Ｍ１０にコンデンサ・モジュールＭ９を連結する。
【００４４】
更に、コンデンサ・モジュールＭ３，Ｍ５の上方にコンデンサ・モジュールＭ４を配置し、コンデンサ・モジュールＭ３，Ｍ５にコンデンサ・モジュールＭ４を連結し、コンデンサ・モジュールＭ１０，Ｍ１２の上方にコンデンサ・モジュール１１を配置し、コンデンサ・モジュールＭ１０，Ｍ１２にコンデンサ・モジュールＭ１１を連結し、コンデンサ・モジュールＭ５，Ｍ１２の上方にコンデンサ・モジュールＭ１６を配置し、コンデンサ・モジュールＭ５，Ｍ１２にコンデンサ・モジュールＭ１６を連結する。
【００４５】
（ｂ）において、（ａ）の連結方法により、コンデンサ・モジュールＭ１〜Ｍ１２は、電気的に６つの直列接続を２組並列接続する。
これによって、コンデンサ・アレー１の（ａ）に示した接続ケーブルＣ１，Ｃ２から大きな電圧及び電流を取出すことができる。
また、一方のコンデンサ・モジュールに他方のコンデンサ・モジュールを逆さまにして連結し、各電極端子Ａ，Ｂをコンデンサ・アレー１の内側に配置することにより、各電極端子Ａ，Ｂが外部に露出せず、安全性を向上させることができる。
【００４６】
図７は本発明に係る電極端子の別の連結機構を示す断面図であり、下側のコンデンサ・モジュール１０の正極端子Ａは左めねじ１０ｃを有し、上側のコンデンサ・モジュール１０Ｎの負極端子Ｂは右めねじ１０ｄを有する。
連結部材３０は、左おねじ３１ａを有する第１のねじ部材３１と、右おねじ３２ａを有する第２のねじ部材３２とからなる。
【００４７】
第１のねじ部材３１は、左おねじ３１ａと、この左おねじ３１ａに続く小径部３１ｂと、この小径部３１ｂに続く大径部３１ｃと、上記小径部３１ｂから大径部３１ｃに至る円環面３１ｄと、この円環面３１ｄに係止する係止部３１ｅを有し、且つ小径部３１ｂに回転可能な右めねじ３１ｆとからなる。
第２のねじ部材３２は、右おねじ３２ａと、この右おねじ３２ａに続く小径部３２ｂと、この小径部３２ｂに続く大径右おねじ３２ｃとからなる。
【００４８】
図８（ａ）〜（ｃ）は本発明に係る電極端子の別の連結機構の連結要領図であり、（ａ）は一方のコンデンサ・モジュールの電極端子の状態、（ｂ）は他方のコンデンサ・モジュールの電極端子の状態、（ｃ）は２つの電極端子の連結中の状態を示す。
まず、（ａ）において、一方のコンデンサ・モジュール１０の正極端子Ａの左めねじ１０ｃに回路基板２０を介して第１のねじ部材３１の左おねじ３１ａをねじ込むことにより、正極端子Ａに第１のねじ部材３１を取付ける。この時、左おねじ３１ａのねじ込みは、第１のねじ部材３１の端面に形成した六角穴３１ｇに六角レンチを差込み回転させて行う。
【００４９】
次に、（ｂ）において、他方のコンデンサ・モジュール１０Ｎの負極端子Ｂの右めねじ１０ｄに回路基板２０Ｎを介して第２のねじ部材３２の右おねじ３２ａをねじ込むことにより、負極端子Ｂに第２のねじ部材３２を取付ける。この時、右おねじ３２ａのねじ込みは、第２のねじ部材３２の端面に形成した六角穴３２ｄに六角レンチを差込み回転させて行う。
【００５０】
この後、（ｃ）において、上方のコンデンサ・モジュール１０Ｎの負極端子Ｂの部分をコンデンサ・モジュール１０の正極端子Ａの上方に持っていき、第１のねじ部材３１の軸芯と第２のねじ部材３２の軸芯とが合うようにして第１のねじ部材３１に第２のねじ部材３２を当接させる。
【００５１】
そして、第１のねじ部材３１の右めねじ３１ｆを上方に移動させ、第２のねじ部材３２の大径おねじ３２ｃに螺合する。
コンデンサ・モジュール１０の負極端子Ｂについても同様に行う。
これで、電極端子の連結作業は完了である。
【００５２】
このように、連結部材３０を用いることによって、連結部材３０を二つのねじ部材３１，３２にしたことで、それぞれのねじ部材３１，３２を予め正・負極端子Ａ，Ｂに取付けることができ、且つ連結作業は二つのねじ部材３１，３２を螺合するだけで行うことができるので、コンデンサ・モジュール１０，１０Ｎ同士の電気的、且つ機械的連結が容易となり、また、コンデンサ・モジュール１０，１０Ｎの交換が楽になる。更に、正・負電極端子Ａ，Ｂを連結部材３０で強固に締結するので、正・負極端子Ａ，Ｂと連結部材３０との接触抵抗を小さくすることができる。
【００５３】
また、図７に示したように、コンデンサ・モジュール１０の正極端子Ａに左めねじ１０ｃ、コンデンサ・モジュール１０Ｎの負極端子Ｂに右めねじ１０ｄ、第１のねじ部材３１に右めねじ３１ｆを形成したことで、図８（ｃ）に示した右めねじ３１ｆを大径おねじ３２ｃに螺合するときに、第１のねじ部材３１及び第２のねじ部材３２が両方とも締め込まれる方向に回転力が作用し、都合がよい。
【００５４】
この実施の形態では、コンデンサ・モジュール１０の正極端子Ａに左めねじ１０ｃ、コンデンサ・モジュール１０Ｎの負極端子Ｂに右めねじ１０ｄを形成したが、この限りではなく、例えば、図７に示したコンデンサ・モジュール１０の正極端子Ａにも負極端子Ｂと同様に右めねじを形成し、この右めねじにねじ込む第１のねじ部材３１に右おねじを形成してもよい。
【００５５】
このような構成で第２のねじ部材３２の大径右おねじ３２ｃに第１のねじ部材３１の右めねじ３１ｆを螺合する場合に、第１のねじ部材３１の小径部３１ｂに六角部を形成し、この六角部にスパナを当てれば、電極端子Ａにねじ込んだ第１のねじ部材３１が回転せず、弛む心配がない。
【００５６】
このように、正・負極端子Ａ，Ｂの両方に右めねじ（又は左めねじ）を形成すれば、加工コストを抑えることができる。
ここで、第１のねじ部材３１と第２のねじ部材３２との当接面に位置合わせ機構を設ければ、連結する正・負極端子Ａ，Ｂの芯だしを容易に行うことができる。
【００５７】
尚、本発明の熱電対１７は、これに限るものではなく、白金線等の測温抵抗体でもよい。
また、本発明の正・負極端子Ａ，Ｂにめねじを形成したが、おねじを形成し、このおねじに螺合するめねじを連結ねじ１１や連結部材３０に形成してもよい。
【００５８】
【発明の効果】
本発明は上記構成により次の効果を発揮する。
請求項１のコンデンサは、正極と負極との一方に右めねじ、他方に左めねじを開けたので、正極と負極とに異なるめねじが形成されるため、正極と負極とを識別することができ、連結するときに誤組付けすることがない。
【００５９】
請求項２のコンデンサの連結機構は、一方のコンデンサの電極端子に右めねじ、他方のコンデンサの電極端子に左めねじを形成し、一端に右おねじ、他端に左おねじを切った連結ねじを右・左めねじにねじ込み、この連結ねじを回転させることによりコンデンサ同士を連結するので、コンデンサ同士の電気的、且つ機械的連結が容易となり、また、コンデンサの交換が楽になる。更に、電極を連結ねじで強固に締結するので、電極と連結ねじとの接触抵抗を小さくすることができる。
【００６０】
請求項３のコンデンサの連結機構は、連結する二つのコンデンサのそれぞれの電極端子にめねじを形成し、螺合可能な二つのねじ部材からなる連結部材のそれぞれにおねじを形成し、これらおねじをめねじにそれぞれねじ込み、二つのねじ部材同士を螺合させることによりコンデンサ同士を連結するので、連結部材を二つのねじ部材にしたことで、それぞれのねじ部材を予め電極端子に取付けることができ、且つ連結作業は二つのねじ部材同士を螺合するだけで行うことができるので、コンデンサ同士の電気的、且つ機械的連結が容易となり、また、コンデンサの交換が楽になる。更に、電極を連結部材で強固に締結するので、電極と連結部材との接触抵抗を小さくすることができる。
【００６１】
請求項４のコンデンサの連結方法は、電極端子に右めねじを形成した一方のコンデンサと、電極端子に左めねじを形成した他方のコンデンサと、一端に右おねじ、他端に左おねじを切った連結ねじとを準備する工程と、一方のコンデンサの電極端子に他方のコンデンサの電極端子を連結ねじを介して向い合せて当接させる工程と、連結ねじを回転させ右・左おねじを右・左めねじにねじ込んでコンデンサ同士を連結する工程とからなるので、コンデンサ同士の電気的、且つ機械的連結が容易となり、また、コンデンサの交換が楽になる。更に、電極を連結ねじで強固に締結するので、電極と連結ねじとの接触抵抗を小さくすることができる。
【図面の簡単な説明】
【図１】本発明に係るコンデンサの連結機構を示す分解斜視図
【図２】本発明に係る電極端子の連結機構を示す断面図
【図３】本発明に係る回路基板の平面図
【図４】本発明に係るコンデンサ・モジュールの電気回路の説明図
【図５】本発明に係るコンデンサ・モジュールを連結したコンデンサ・アレーを示す説明図
【図６】本発明に係るコンデンサ・モジュールを連結した別の配列のコンデンサ・アレーを示す説明図
【図７】本発明に係る電極端子の別の連結機構を示す断面図
【図８】本発明に係る電極端子の別の連結機構の連結要領図
【符号の説明】
１，１Ａ…コンデンサ・アレー、１０，１０Ｎ…コンデンサ・モジュール、１０ａ，１０ｄ…右めねじ、１０ｂ，１０ｃ…左めねじ、１１，１１Ｐ，１１Ｑ…連結ねじ、３０…連結部材、３１，３２…ねじ部材（第１のねじ部材、第２のねじ部材）、１１ｂ，３２ａ…右おねじ、１１ｃ，３１ａ…左おねじ、Ａ，Ｂ…電極端子（正極、負極）。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a capacitor, a capacitor coupling mechanism, and a coupling method thereof.
[0002]
[Prior art]
As an electric double layer capacitor, Japanese Patent Laid-Open No. 5-315190, “Chip-type Electric Double Layer Capacitor” is known.
The technology of the above publication provides a chip-type electric double layer capacitor that is small in size, has a small equivalent series resistance, can be automatically mounted on a printed circuit board, and has good mounting stability. A conductive separator 10 for connecting the elements 9, an element laminate 9 a in which the conductive separators 10 are vertically integrated, and an insulating resin 1 for covering the element laminate 9 a by molding are disclosed. .
[0003]
[Problems to be solved by the invention]
In the above technique, since the element laminate 9a is molded, for example, when one element becomes defective, the entire electric double layer capacitor has to be replaced.
SUMMARY OF THE INVENTION An object of the present invention is to provide a capacitor, a coupling mechanism for a capacitor, and a coupling method for facilitating electrical connection and easy replacement.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, according to claim 1 of the present invention, a right female screw is opened on one of the positive electrode and the negative electrode, and a left female screw is opened on the other.
Since different internal threads are formed on the positive electrode and the negative electrode, the positive electrode and the negative electrode can be distinguished from each other and are not erroneously assembled when connected.
[0005]
According to the second aspect of the present invention, a right female screw is formed on the electrode terminal of one capacitor, a left female screw is formed on the electrode terminal of the other capacitor, and a connecting screw having a right male screw at one end and a left male screw at the other end is connected to the right The capacitors are connected to each other by screwing into the left female screw and rotating the connecting screw.
[0006]
The electrical and mechanical connection between the capacitors becomes easy, and the replacement of the capacitors becomes easy. Furthermore, since the electrode is firmly fastened with the connecting screw, the contact resistance between the electrode and the connecting screw can be reduced.
[0007]
According to a third aspect of the present invention, a female screw is formed on each electrode terminal of two capacitors to be connected, a screw is formed on each of the connecting members composed of two screw members that can be screwed together, and these male screws are used as female screws. Capacitors are connected by screwing in and screwing together two screw members.
[0008]
Since the connecting member is made of two screw members, each screw member can be attached to the electrode terminal in advance, and the connecting operation can be performed only by screwing the two screw members together. Electrical and mechanical connection is facilitated, and capacitor replacement is facilitated. Furthermore, since the electrode is firmly fastened by the connecting member, the contact resistance between the electrode and the connecting member can be reduced.
[0009]
Claim 4 is one capacitor having a right female thread formed on an electrode terminal, the other capacitor having a left female thread formed on an electrode terminal, a connecting screw having a right male thread at one end and a left male thread at the other end. And a step of bringing the electrode terminal of the other capacitor into contact with the electrode terminal of one capacitor via a connecting screw, and rotating the connecting screw to rotate the right and left male screws to the right and left. And a step of connecting capacitors by screwing them into a screw.
[0010]
The electrical and mechanical connection between the capacitors becomes easy, and the replacement of the capacitors becomes easy. Furthermore, since the electrode is firmly fastened with the connecting screw, the contact resistance between the electrode and the connecting screw can be reduced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is an exploded perspective view showing a capacitor coupling mechanism according to the present invention. As a capacitor, a capacitor module incorporating an electric double layer capacitor used in an electric vehicle is shown.
[0012]
The capacitor module 10 includes a positive electrode terminal A, a negative electrode terminal B, a connection terminal E, and a connector M with a cable having connection terminals H and J (see FIG. 3) on an upper surface of a rectangular parallelepiped. Each terminal will be described in detail later.
[0013]
The connection between the positive terminal A of the capacitor module 10 shown in the lower side of the figure and the negative terminal B of the inverted capacitor module 10N shown in the upper side of the figure is made by connecting the nuts 12 and 12 and the circuit board 20, Through 20N. The capacitor module 10N and the circuit board 20N are the same as the capacitor module 10 and the circuit board 20, respectively, but the reference numerals are changed for convenience of explanation.
[0014]
The bolts 13 and 13 are intended to establish electrical continuity between the connection terminals E and E of the capacitor modules 10 and 10N and the circuit boards 20 and 20N, respectively.
The negative electrode terminal B of the capacitor module 10 and the positive electrode terminal of the capacitor module (not shown) are connected to each other through a nut 12P and a circuit board 20 on a connecting bolt 11P.
The positive terminal A of the capacitor module 10N and the negative terminal of another capacitor module (not shown) are connected to the connecting bolt 11Q via the nut 12Q and the circuit board 20N.
[0015]
FIG. 2 is a cross-sectional view showing the electrode terminal coupling mechanism according to the present invention. The positive terminal A of the lower capacitor module 10 has a right female screw 10a, and the negative terminal B of the upper capacitor module 10N is It has a left female screw 10b.
The connecting screw 11 has a hexagonal portion 11a provided at the center, and a right male screw 11b and a left male screw 11c formed on both sides of the hexagonal portion 11a.
[0016]
The connection between the positive terminal A of the lower capacitor module 10 and the negative terminal B of the upper capacitor module 10N is performed in the following order.
First, the capacitor modules 10 and 10N and the connecting bolt 11 are prepared.
Nuts 12 and 12 are screwed into the connecting bolt 11 in advance on the back side of the right male screw 11b and the left male screw 11c.
[0017]
Next, the circuit board 20 is placed on the positive terminal A of the capacitor module 10, and the mounting hole 21 of the circuit board 20 is fitted to the right female screw 10 a of the positive terminal A.
In this state, the right male screw 11b of the connecting screw 11 is inserted into the hole 21 and applied to the opening of the right female screw 10a.
[0018]
Thereafter, the mounting hole 23 for mounting the circuit board 20N is fitted into the left male screw 11c of the connecting screw 11, and the left female screw 10b opening of the negative terminal B of the capacitor module 10N is attached to the tip of the left male screw 11c of the connecting screw 11. Hit.
Then, a wrench is applied to the hexagonal portion 11a of the connection screw 11 and the connection screw 11 is rotated, so that the right external thread 11b of the connection screw 11 is applied to the right internal thread 10a of the positive terminal A and the left internal thread 10b of the negative terminal B. The left male screw 11c of the connecting screw 11 is screwed.
Then, the nuts 12 and 12 are tightened to fix the circuit boards 20 and 20N.
[0019]
The same applies to the negative terminal B of the capacitor module 10. If the connecting screw 11 is rotated at the same angle at the same time on the positive and negative terminals A and B of the capacitor module 10, the screwing amount of both connecting screws 11 becomes the same, and both connecting screws 11 are forced. And the capacitor module 10N does not tilt.
[0020]
The positive terminal A of the capacitor module 10 and the negative terminal B of the capacitor module 10N may be connected by the following method.
The nuts 12 and 12 are previously screwed into the back side of the right male screw 11b and the left male screw 11c of the connecting bolt 11.
[0021]
Next, the connection screw 11 is rotated with a spanner via the circuit board 20 between the connection screw 11 and the positive electrode terminal A of the capacitor module 10, and the right male screw 11b of the connection screw 11 is turned to the right of the positive electrode terminal A. The connecting screw 11 is self-supported by slightly screwing into the screw 10a.
[0022]
Thereafter, the hole 21 of the circuit board 20N is fitted into the left male screw 11c of the connecting screw 11, and the opening of the left female screw 10b of the negative terminal B of the capacitor module 10N is brought into contact with the tip of the left male screw 11c of the connecting screw 11. Let
[0023]
Thereafter, the connecting screw 11 is rotated with a spanner, and the right male screw 11b of the connecting screw 11 is screwed into the right female screw 10a of the positive terminal A, and the left male screw 11c of the connecting screw 11 is screwed into the left female screw 10b of the negative terminal B. .
Then, the nuts 12 and 12 are tightened to fix the circuit boards 20 and 20N.
The same applies to the negative terminal B of the capacitor module 10.
[0024]
According to this connection method, by making the connection screw 11 self-supporting, the opening of the left female screw 10b of the negative terminal B of the capacitor module 10N can be easily brought into contact with the tip of the left male screw 11c of the connection screw 11. Can be easily performed.
[0025]
As described above, the right female screw 10a is formed on the positive terminal A of one capacitor module 10, the left female screw 10b is formed on the negative terminal B of the other capacitor module 10N, the right male thread 11b is formed on one end, and the other end is formed. The connecting screw 11 with the left male thread 11c cut is screwed into the right and left female screws 10a and 10b, and by rotating the connecting screw 11, the two capacitor modules 10 and 10N can be easily electrically and mechanically. The capacitor modules 10 and 10N can be easily exchanged.
[0026]
Further, the positive and negative terminals A and B can be firmly fastened with the connecting screw 11, and the contact resistance between the positive and negative terminals A and B and the connecting screw 11 can be reduced.
In this embodiment, the right female screw 10a is formed on the positive terminal A, and the left female screw 10b is formed on the negative terminal B. On the contrary, a left female screw is formed on the positive terminal A and a right female screw is formed on the negative terminal B. Also good.
[0027]
3 is a plan view of the circuit board according to the present invention. The circuit board 20 has a positive electrode through the board 20a, a hole 21 through which the connecting screw 11 (see FIG. 1) is inserted, and the nut 12 shown in FIG. A circular connection terminal A1 connected to the terminal A (see FIG. 1), a hole 22 through which the bolt 13 (see FIG. 1) is inserted, and a connection terminal of the capacitor module 10 formed around the hole 22 by the bolt 13 A connection terminal E1 conducting to E, a hole 23 through which the connecting screw 11P (see FIG. 1) is inserted, and a circular connection terminal B1 connected to the negative terminal B (see FIG. 1) via the nut 12P shown in FIG. And a switch element 24, a connector 25 having connection terminals H1 and J1, and a detection terminal 26.
[0028]
The detection terminal 26 has connection terminals G2, K2, H2, J2, and L2.
The connection terminals A1, B1, E1, the switch element 24, the connector 25, and the detection terminal 26 will be described in detail with reference to FIG.
[0029]
FIG. 4 is an explanatory diagram of an electric circuit of the capacitor module according to the present invention. The capacitor module 10 includes a module body 15 and a circuit board 20. The module body 15 includes an electric double layer capacitor 16, a thermocouple 17 that detects the temperature of the electric double layer capacitor 16, the positive terminal A, the negative terminal B, and the connection terminals E, H, and J described above. Consists of.
The connection terminal E and the negative terminal B are connected to the electric double layer capacitor 16.
The connection terminals H and J are connected to the thermocouple 17.
[0030]
The electric double layer capacitor 16 is composed of a capacitor having a large capacity (for example, several farads), and is charged by an external charger (not shown) to store a predetermined amount of electricity (charge amount). Is connected to store the amount of electricity corresponding to the power required to drive a motor such as an electric vehicle.
The thermocouple 17 measures the temperature of the electric double layer capacitor 16 and monitors the temperature rise due to heat generated when the electric double layer capacitor 16 is charged.
[0031]
The circuit board 20 includes a switch element 24, a bypass conductor 27, and connection terminals A1, E1, H1, J1, B1, G2, K2, H2, J2, and L2.
The connection terminals A1, E1, H1, J1, and B1 are connected to the positive terminal A, the connection terminals E, H, J, and the negative terminal B of the module body 15, respectively.
The connection terminals A1, E1, and B1 are connected to the terminal S, the contact C, and the contact D of the switch element 24, respectively.
[0032]
Further, the connection terminal B1 is connected to the connection terminal L2, and the connection terminal E1 is connected to the connection terminal K2. That is, the connection terminals B1 and E1 are electrically connected to the bipolar plates of the electric double layer capacitor 12, and the voltage of the electric double layer capacitor 12 can be detected by the connection terminals B1 and E1.
[0033]
The connection terminals H1 and J1 are connected to the connection terminals H2 and J2, respectively. The electromotive force of the thermocouple 17 can be output from the connection terminals H2 and J2, and the temperature corresponding to the electromotive force can be obtained.
The connection terminal G <b> 2 is a terminal for inputting a control signal to the switch element 24.
[0034]
The switch element 24 is composed of a one-circuit two-contact type electronic switch having a control terminal, and is a contact on the electric double layer capacitor 16 side in a normal state (indicated by a solid line) based on a control signal from a control means (not shown). C is connected to the connection terminal A1, and the capacitor module 10 is used as a capacitor. In a break state (indicated by a broken line), the terminal D on the bypass conductor 27 side is connected to the connection terminal A1 and the capacitor module 10 is used as a short bar. It is what you use.
[0035]
5 (a) and 5 (b) are explanatory views showing a capacitor array in which capacitor modules according to the present invention are connected, (a) is a perspective view showing a connected state, and (b) is a connection of (a). The schematic diagram which shows a state is shown.
In (a), the capacitor array 1 includes a plurality of capacitor modules M1 to M11, a connection cable C1 attached to the positive terminal A of the capacitor module M1, and a connection cable attached to the negative terminal B of the capacitor module M11. C2. The capacitor modules M1 to M11 shown here are the same as the capacitor module 10.
[0036]
These capacitor modules M1 to M11 are connected in the following order.
First, among the capacitor modules M1 to M11, the capacitor modules M1, M5, and M9 are arranged in the longitudinal direction with the positive and negative terminals A and B oriented in the same direction, and the capacitor modules M3 and M7 are arranged on the side of this column. , M11 are similarly arranged in the longitudinal direction so that the positive and negative terminals A and B are in the same direction and are shifted by half the length of the capacitor module M1. Note that the ratio of the vertical and horizontal lengths of the upper surfaces of the capacitor modules M1 to M11 is 1: 2, and the positive and negative terminals A and B are respectively centered in two squares formed by dividing the upper surface into two equal parts. Position.
[0037]
Next, the capacitor module M2 is disposed above the capacitor modules M1 and M3, the negative terminal B of the capacitor module M1, the positive terminal A of the capacitor module M2, and the positive terminal A of the capacitor module M3 and the capacitor module. The negative terminal B of M2 is connected by the method shown in FIG.
[0038]
Similarly, the capacitor module M4 is connected to the capacitor modules M3 and M5, the capacitor module M6 is connected to the capacitor modules M5 and M7, and the capacitor module M8 is connected to the capacitor modules M7 and M9. The capacitor module M10 is connected to the modules M9 and M11.
[0039]
In (b), the capacitor modules M1 to M11 are electrically connected in series by the connection method of (a).
As a result, a large voltage can be extracted from the connection cables C1 and C2 shown in (a) of the capacitor array 1.
[0040]
6A and 6B are explanatory views showing another arrangement of the capacitor array in which the capacitor modules according to the present invention are connected. FIG. 6A is a perspective view showing a connected state, and FIG. The schematic diagram which shows the connection state of a) is shown.
In (a), the capacitor array 1A includes a plurality of capacitor modules M1 to M12, a connection cable C1 attached to the positive terminals A and A of the capacitor modules M1 and M7, and negative terminals of the capacitor modules M6 and M12. And a connection cable C2 attached to B and B.
[0041]
These capacitor modules M1 to M12 are connected in the following order.
First, among the capacitor modules M1 to M12, the capacitor modules M1, M3, and M5 are arranged in the longitudinal direction so that the positive and negative terminals A and B are oriented in the same direction, and the capacitor modules M8 and M10 are arranged on the side of this column. , M12 are similarly arranged in the longitudinal direction with the same orientation of the positive and negative terminals A, B. In addition, the ratio of the vertical and horizontal lengths of the upper surfaces of the capacitor modules M1 to M12 is 1: 2, and the positive and negative terminals A and B are respectively centered in two squares formed by dividing the upper surface into two equal parts. Position.
[0042]
Next, the capacitor module M7 is arranged above the capacitor modules M1 and M8, the positive electrode terminal A of the capacitor module M1, the positive electrode terminal A of the capacitor module M7, the positive electrode terminal A of the capacitor module M8 and the capacitor module. The negative terminal B of M7 is connected by the method shown in FIG.
[0043]
Thereafter, the capacitor module M2 is disposed above the capacitor modules M1 and M3, the negative electrode terminal B of the capacitor module M1, the positive electrode terminal A of the capacitor module M2, and the positive electrode terminal A of the capacitor module M3 and the capacitor module. The negative terminal B of M2 is connected by the method shown in FIG.
Similarly, the capacitor module M9 is disposed above the capacitor modules M8 and M10, and the capacitor module M9 is connected to the capacitor modules M8 and M10.
[0044]
Further, the capacitor module M4 is arranged above the capacitor modules M3 and M5, the capacitor module M4 is connected to the capacitor modules M3 and M5, and the capacitor module 11 is arranged above the capacitor modules M10 and M12. The capacitor module M11 is connected to the capacitor modules M10 and M12, the capacitor module M16 is disposed above the capacitor modules M5 and M12, and the capacitor module M16 is connected to the capacitor modules M5 and M12.
[0045]
In (b), the capacitor modules M1 to M12 electrically connect two sets of six series connections in parallel by the connection method of (a).
Thereby, a large voltage and current can be taken out from the connection cables C1 and C2 shown in (a) of the capacitor array 1.
Further, by connecting the other capacitor module upside down to one capacitor module and arranging the electrode terminals A and B inside the capacitor array 1, the electrode terminals A and B are exposed to the outside. Therefore, safety can be improved.
[0046]
FIG. 7 is a cross-sectional view showing another connection mechanism for electrode terminals according to the present invention. The positive terminal A of the lower capacitor module 10 has a left female screw 10c and the negative terminal of the upper capacitor module 10N. B has a right female thread 10d.
The connecting member 30 includes a first screw member 31 having a left male screw 31a and a second screw member 32 having a right male screw 32a.
[0047]
The first screw member 31 includes a left male screw 31a, a small diameter portion 31b following the left male screw 31a, a large diameter portion 31c following the small diameter portion 31b, and a circle extending from the small diameter portion 31b to the large diameter portion 31c. It has a ring face 31d and a right female screw 31f that has a locking part 31e that locks to the ring face 31d and is rotatable on the small diameter part 31b.
The second screw member 32 includes a right male screw 32a, a small diameter portion 32b following the right male screw 32a, and a large diameter right male screw 32c following the small diameter portion 32b.
[0048]
8A to 8C are connection procedure diagrams of another connection mechanism for electrode terminals according to the present invention, in which FIG. 8A is a state of electrode terminals of one capacitor module, and FIG. The state of the electrode terminals of the module, (c) shows the state during connection of the two electrode terminals.
First, in (a), the left male screw 31a of the first screw member 31 is screwed into the left female screw 10c of the positive electrode terminal A of one capacitor module 10 via the circuit board 20, whereby the positive terminal A is 1 screw member 31 is attached. At this time, the left male screw 31a is screwed by inserting and rotating a hexagon wrench into a hexagon hole 31g formed in the end face of the first screw member 31.
[0049]
Next, in (b), the right external thread 32a of the second screw member 32 is screwed into the right female thread 10d of the negative terminal B of the other capacitor module 10N via the circuit board 20N, thereby The second screw member 32 is attached. At this time, the right male screw 32a is screwed by inserting and rotating a hexagon wrench into a hexagon hole 32d formed on the end face of the second screw member 32.
[0050]
Thereafter, in (c), the portion of the negative electrode terminal B of the upper capacitor module 10N is brought above the positive electrode terminal A of the capacitor module 10, and the shaft core of the first screw member 31 and the second screw The second screw member 32 is brought into contact with the first screw member 31 so that the axis of the member 32 is aligned.
[0051]
Then, the right female screw 31 f of the first screw member 31 is moved upward and screwed into the large-diameter male screw 32 c of the second screw member 32.
The same applies to the negative terminal B of the capacitor module 10.
This completes the connecting operation of the electrode terminals.
[0052]
Thus, by using the connecting member 30, the connecting member 30 is made into two screw members 31, 32, so that the respective screw members 31, 32 can be attached to the positive and negative terminals A, B in advance, In addition, since the connecting operation can be performed simply by screwing the two screw members 31 and 32, the electrical and mechanical connection between the capacitor modules 10 and 10N becomes easy, and the capacitor modules 10 and 10N are facilitated. The exchange becomes easy. Further, since the positive / negative electrode terminals A and B are firmly fastened by the connecting member 30, the contact resistance between the positive / negative electrode terminals A and B and the connecting member 30 can be reduced.
[0053]
Further, as shown in FIG. 7, the left female screw 10 c is connected to the positive terminal A of the capacitor module 10, the right female screw 10 d is connected to the negative terminal B of the capacitor module 10 N, and the right female screw 31 f is connected to the first screw member 31. Since the right female screw 31f shown in FIG. 8C is screwed to the large-diameter male screw 32c, the first screw member 31 and the second screw member 32 are both tightened. Rotational force acts on and is convenient.
[0054]
In this embodiment, the left female screw 10c is formed on the positive terminal A of the capacitor module 10 and the right female screw 10d is formed on the negative terminal B of the capacitor module 10N. However, the present invention is not limited thereto. Similarly to the negative terminal B, a right female thread may be formed on the positive terminal A of the capacitor module 10, and a right male thread may be formed on the first screw member 31 screwed into the right female thread.
[0055]
In such a configuration, when the right female screw 31f of the first screw member 31 is screwed into the large-diameter right male screw 32c of the second screw member 32, a hexagonal portion is formed on the small-diameter portion 31b of the first screw member 31. If a wrench is applied to the hexagonal portion, the first screw member 31 screwed into the electrode terminal A does not rotate and there is no fear of loosening.
[0056]
Thus, if the right female screw (or the left female screw) is formed on both the positive and negative terminals A and B, the processing cost can be reduced.
Here, if a positioning mechanism is provided on the contact surface between the first screw member 31 and the second screw member 32, the positive and negative terminals A and B to be connected can be easily centered.
[0057]
The thermocouple 17 of the present invention is not limited to this, and may be a resistance temperature detector such as a platinum wire.
Moreover, although the internal thread was formed in the positive / negative electrode terminals A and B of this invention, you may form a external thread in the connection screw 11 and the connection member 30 by forming this external thread.
[0058]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
Since the capacitor of claim 1 has a right female screw on one of the positive electrode and the negative electrode and a left female screw on the other, a different female screw is formed on the positive electrode and the negative electrode, so that the positive electrode and the negative electrode are identified. Can be assembled, and there is no wrong assembly when connecting.
[0059]
In the capacitor coupling mechanism according to claim 2, a right female screw is formed on the electrode terminal of one capacitor, a left female screw is formed on the electrode terminal of the other capacitor, a right male screw is cut at one end, and a left male screw is cut at the other end. Capacitors are connected by screwing the connecting screws into the right and left female screws and rotating the connecting screws. Therefore, electrical and mechanical connections between the capacitors are facilitated, and replacement of the capacitors is facilitated. Furthermore, since the electrode is firmly fastened with the connecting screw, the contact resistance between the electrode and the connecting screw can be reduced.
[0060]
According to a third aspect of the present invention, there is provided a capacitor connecting mechanism in which a female screw is formed on each electrode terminal of two capacitors to be connected, and a screw is formed on each of the connecting members including two screw members that can be screwed together. Since the capacitors are connected by screwing the screws into the female screws and screwing the two screw members together, it is possible to attach each screw member to the electrode terminal in advance by making the connecting members two screw members. In addition, since the connecting operation can be performed only by screwing the two screw members together, the electrical and mechanical connection between the capacitors becomes easy, and the replacement of the capacitors becomes easy. Furthermore, since the electrode is firmly fastened by the connecting member, the contact resistance between the electrode and the connecting member can be reduced.
[0061]
According to a fourth aspect of the present invention, there is provided a capacitor connecting method comprising: one capacitor having a right female screw formed on an electrode terminal; the other capacitor having a left female screw formed on an electrode terminal; a right male screw at one end; A connecting screw cut off, a step of bringing the electrode terminal of the other capacitor into contact with the electrode terminal of one capacitor through the connecting screw, and a right and left male screw by rotating the connecting screw Are connected to the capacitors by screwing them into the right and left female screws, so that the electrical and mechanical connection between the capacitors becomes easy, and the replacement of the capacitors becomes easy. Furthermore, since the electrode is firmly fastened with the connecting screw, the contact resistance between the electrode and the connecting screw can be reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a capacitor coupling mechanism according to the present invention.
FIG. 2 is a cross-sectional view showing an electrode terminal coupling mechanism according to the present invention.
FIG. 3 is a plan view of a circuit board according to the present invention.
FIG. 4 is an explanatory diagram of an electric circuit of a capacitor module according to the present invention.
FIG. 5 is an explanatory diagram showing a capacitor array in which capacitor modules according to the present invention are connected.
FIG. 6 is an explanatory diagram showing another array of capacitor arrays in which capacitor modules according to the present invention are connected.
FIG. 7 is a cross-sectional view showing another connection mechanism for electrode terminals according to the present invention.
FIG. 8 is a connection diagram of another connection mechanism for electrode terminals according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,1A ... Capacitor array, 10, 10N ... Capacitor module, 10a, 10d ... Right female screw, 10b, 10c ... Left female screw, 11, 11P, 11Q ... Connection screw, 30 ... Connection member, 31, 32 ... Screw members (first screw member, second screw member), 11b, 32a ... right male screw, 11c, 31a ... left male screw, A, B ... electrode terminals (positive electrode, negative electrode).

Claims

A capacitor comprising a positive electrode and a negative electrode, wherein a right female screw is opened on one of the positive electrode and the negative electrode, and a left female screw is opened on the other.

In a capacitor coupling mechanism that connects multiple capacitors in series or in parallel, a right female screw is formed on the electrode terminal of one capacitor, a left female screw is formed on the electrode terminal of the other capacitor, a right female screw is formed on one end, and A capacitor coupling mechanism characterized in that a capacitor screw is coupled by screwing a coupling screw having a left male thread into the right and left female screws and rotating the coupling screw.

In a capacitor coupling mechanism in which a plurality of capacitors are connected in series or in parallel, a female thread is formed on each electrode terminal of the two capacitors to be coupled, and each of the coupling members including two screw members that can be screwed together is screwed. The capacitor coupling mechanism is characterized in that the capacitors are coupled by screwing these male screws into the female threads and screwing the two screw members together.

In a capacitor coupling method in which a plurality of capacitors are connected in series or in parallel, one capacitor having a right female thread formed on the electrode terminal, the other capacitor having a left female thread formed on the electrode terminal, a right male thread on one end, Preparing a connecting screw having a left male thread at the other end, contacting the electrode terminal of the other capacitor with the electrode terminal of the one capacitor through the connecting screw, and A method of connecting capacitors, comprising: rotating a connecting screw and screwing the right and left male screws into the right and left female screws to connect the capacitors together.