JP2006252792A - Connection structure of storage element and storage element module - Google Patents

Connection structure of storage element and storage element module Download PDF

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JP2006252792A
JP2006252792A JP2005063592A JP2005063592A JP2006252792A JP 2006252792 A JP2006252792 A JP 2006252792A JP 2005063592 A JP2005063592 A JP 2005063592A JP 2005063592 A JP2005063592 A JP 2005063592A JP 2006252792 A JP2006252792 A JP 2006252792A
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storage element
circuit board
screwed
connection structure
power storage
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JP4632353B2 (en
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Takuro Namima
拓朗 波間
Toshiichi Jinbo
敏一 神保
Kazuhiko Hiyoshi
和彦 日吉
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Elna Co Ltd
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Elna Co Ltd
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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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

<P>PROBLEM TO BE SOLVED: To provide the connection structure of a storage element capable of surely conducting positioning in assembly, increasing the fastening torque of a metallic bar, and increasing radiation, and to provide a storage element module equipped with the connection structure. <P>SOLUTION: The connection structure of the storage element conductively connecting a plurality of storage elements 1 with the metallic bar 3 and fixed to a circuit board 3 is equipped with a support 10 having an element side screwing part screwed to a terminal 1a of the storage element 1 and a board side screwing part formed coaxially with the element side screwing part and screwing with a screwing member on the circuit board side, the metallic bar 2 is interposed between the support 10 and the terminal 1a, the element side screwing part is screwed with the terminal 1a, the circuit board 3 is interposed between the support 10 and the screwing member, and the board side screwing part is screwed with the screwing member 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電気二重層キャパシタ等の蓄電素子を金属バーで導電接続しつつ回路基板に固定するための蓄電素子の接続構造、および当該接続構造を備える蓄電素子モジュールに関する。   The present invention relates to a connection structure for a storage element for fixing a storage element such as an electric double layer capacitor to a circuit board while conductively connecting it with a metal bar, and a storage element module including the connection structure.

コンデンサや蓄電池などの蓄電素子は、その蓄電原理に応じて、耐電圧や充電電圧などが自ずと決定される。例えば、電気二重層キャパシタの場合、電解液の分解電圧との関係から、耐電圧が２．５〜３．０Ｖ程度のものが多く、それ以上の高電圧に対応するには、その耐電圧に見合った数の蓄電素子を直列に接続し、モジュール化する必要がある（例えば、非特許文献１参照）。   With respect to power storage elements such as capacitors and storage batteries, the withstand voltage, the charging voltage, etc. are naturally determined according to the principle of power storage. For example, in the case of an electric double layer capacitor, there are many withstand voltages of about 2.5 to 3.0 V due to the relationship with the decomposition voltage of the electrolyte, and in order to cope with higher voltages, the withstand voltage must be reduced. It is necessary to connect a suitable number of power storage elements in series and modularize them (for example, see Non-Patent Document 1).

蓄電素子をモジュール化する場合、蓄電素子の電圧を均等化する回路などを組み合わせる必要があり、当該回路を構成する電子部品を実装した回路基板と蓄電素子とが導電接続される。また、蓄電素子間には大きな電流が流れるため、ブスバー等の金属バーによって蓄電素子間が導電接続される。   When modularizing the power storage element, it is necessary to combine a circuit for equalizing the voltage of the power storage element, and the circuit board on which the electronic components constituting the circuit are mounted and the power storage element are conductively connected. Further, since a large current flows between the power storage elements, the power storage elements are conductively connected by a metal bar such as a bus bar.

従来、このような蓄電素子の接続構造としては、図４に示すように、まず、取付穴を有する金属バー２を用いて、ネジ１ａにより複数の蓄電素子１を導電接続しつつ固定した後、金属バー２に支柱２０をネジ２１で取り付け、この支柱２０に対して、回路基板３をネジ２２により取り付けた構造が知られていた。   Conventionally, as shown in FIG. 4, as a connection structure of such power storage elements, first, using a metal bar 2 having mounting holes, a plurality of power storage elements 1 are fixed while being conductively connected by screws 1 a, A structure in which a support 20 is attached to the metal bar 2 with a screw 21 and the circuit board 3 is attached to the support 20 with a screw 22 has been known.

しかしながら、この構造では、金属バー２の支柱２０のピッチを精度良く組み立てないと、回路基板３の取付穴３ａとの位置ズレが生じるため、組立時にピッチ調節をしながら、ネジ１ａの締め付けを行い、更にネジ２２によって金属バー２を回路基板３に取り付ける必要があった。つまり、金属バー２の支柱２０の位置合わせを行うために、非常に煩雑な作業が必要となっていた。   However, in this structure, if the pitch of the support 20 of the metal bar 2 is not assembled with high accuracy, a positional deviation from the mounting hole 3a of the circuit board 3 occurs. Therefore, the screw 1a is tightened while adjusting the pitch during assembly. Further, it is necessary to attach the metal bar 2 to the circuit board 3 with screws 22. That is, in order to align the column 20 of the metal bar 2, a very complicated operation is required.

また、図５に示すように、複数の蓄電素子１の各端子１ａに対して、金属バー２及び回路基板３をネジ２２により締めつけて、取り付けた構造が存在する。この構造によると、上記のような位置合わせの問題が少ない。   Further, as shown in FIG. 5, there is a structure in which the metal bar 2 and the circuit board 3 are fastened with screws 22 to the terminals 1 a of the plurality of power storage elements 1. According to this structure, there are few alignment problems as described above.

しかしながら、この構造では、金属バー２と蓄電素子１の端子１ａとの導電接続を確実にするために、ネジ２２による締めつけトルクを大きくする必要があるが、余り締めつけトルクを大きくすると、回路基板３に割れが生じる場合があった。また、回路基板３と金属バー２とが接触した構造となるため、特に金属バー２からの放熱が悪くなり、回路の温度が上がることにより、動作精度が悪化するという問題があった。
岡村廸夫「電気二重層キャパシタと蓄電システム（第２版）」日刊工業新聞社（２００１） However, in this structure, in order to ensure the conductive connection between the metal bar 2 and the terminal 1a of the electric storage element 1, it is necessary to increase the tightening torque by the screw 22, but if the excessive tightening torque is increased, the circuit board 3 In some cases, cracks occurred. In addition, since the circuit board 3 and the metal bar 2 are in contact with each other, the heat radiation from the metal bar 2 is particularly deteriorated, and the temperature of the circuit is raised, thereby deteriorating the operation accuracy.
Ikuo Okamura “Electric Double Layer Capacitor and Power Storage System (2nd Edition)” Nikkan Kogyo Shimbun (2001)

そこで、本発明の目的は、組立時の位置合わせが良好に行え、金属バーの締めつけトルクを大きくでき、しかも、放熱性も良好な蓄電素子の接続構造、および当該接続構造を備える蓄電素子モジュールを提供することにある。   Accordingly, an object of the present invention is to provide a connection structure for a storage element that can be satisfactorily aligned during assembly, increase the tightening torque of the metal bar, and has good heat dissipation, and a storage element module including the connection structure. It is to provide.

上記目的は、下記の如き本発明により達成できる。   The above object can be achieved by the present invention as described below.

即ち、本発明の蓄電素子の接続構造は、複数の蓄電素子を金属バーで導電接続しつつ回路基板に固定してある蓄電素子の接続構造であって、前記蓄電素子の端子に螺合する素子側螺合部と、その素子側螺合部と同軸に形成され前記回路基板側の螺合部材と螺合する基板側螺合部とを有する支柱を備えると共に、前記支柱と前記端子との間に前記金属バーを挟持しつつ前記素子側螺合部が前記端子と螺合すると共に、前記支柱と前記螺合部材との間に前記回路基板を挟持しつつ前記基板側螺合部が前記螺合部材と螺合してあることを特徴とする。   That is, the storage element connection structure of the present invention is a storage element connection structure in which a plurality of storage elements are conductively connected by metal bars and fixed to a circuit board, and is an element that is screwed into a terminal of the storage element A post having a side screwing portion and a board side screwing portion formed coaxially with the element side screwing portion and screwed with the screwing member on the circuit board side, and between the post and the terminal. The element side screwing portion is screwed with the terminal while holding the metal bar to the terminal, and the circuit board side screwing portion is screwed with the circuit board between the column and the screwing member. It is characterized by being screwed with a joint member.

本発明の蓄電素子の接続構造によると、金属バーを固定する素子側螺合部と同軸に基板側螺合部が形成された支柱を用いて、回路基板を固定するため、金属バーの位置合わせを行う必要がなく、組立時の位置合わせが良好に行え、簡易な作業で組立を行うことができる。また、支柱の素子側螺合部によって金属バーを締め付けた後、別途支柱の基板側螺合部に対して回路基板の締め付けを行えるため、金属バーの締めつけトルクを大きくすることができる。更に、支柱がスペーサとなって、金属バーと回路基板との接触が避けられるため、金属バーからの放熱性も良好となる。   According to the connection structure of the electricity storage element of the present invention, the metal bar is aligned because the circuit board is fixed using the support column in which the board side screwing part is formed coaxially with the element side screwing part for fixing the metal bar. There is no need to perform the positioning, the positioning at the time of assembly can be performed satisfactorily, and the assembly can be performed with simple work. In addition, after the metal bar is tightened by the element side screwing portion of the support column, the circuit board can be tightened separately from the board side screwing portion of the support column, so that the tightening torque of the metal bar can be increased. Furthermore, since the pillars serve as spacers and contact between the metal bar and the circuit board is avoided, heat dissipation from the metal bar is also improved.

上記において、前記支柱の素子側螺合部は雄ネジで構成されていると共に、前記支柱の基板側螺合部は雌ネジで構成されていることが好ましい。蓄電素子の端子は雌ネジを有するものが多く、雄ネジによって支柱の締め付けが可能となり、また、支柱の雌ネジに対して雄ネジの螺合部材を用いて回路基板を取り付けることができる。   In the above, it is preferable that the element side screwing portion of the support column is constituted by a male screw, and the substrate side screwing portion of the support column is constituted by a female screw. Many terminals of the power storage element have a female screw, and the column can be fastened by the male screw. Further, the circuit board can be attached to the female screw of the column by using a screw member of the male screw.

また、前記回路基板には、前記支柱の雌ネジに対応した位置に長穴が設けられていることが好ましい。これによって、蓄電素子の端子への位置合わせがより容易になり、また、蓄電素子の端子間距離が変化しても、同じ回路基板で対応できるようになる。   The circuit board is preferably provided with a long hole at a position corresponding to the female screw of the support column. This makes it easier to align the terminals of the power storage elements, and even if the distance between the terminals of the power storage elements changes, the same circuit board can be used.

一方、本発明の蓄電素子モジュールは、複数の蓄電素子と、これを導電接続する金属バーと、前記蓄電素子を固定しつつ導電接続された回路基板と、その回路基板に実装されて電子回路を構成する電子部品とを備える蓄電素子モジュールであって、前記蓄電素子の端子に螺合する素子側螺合部と、その素子側螺合部と同軸に形成され前記回路基板側の螺合部材と螺合する基板側螺合部とを有する支柱を備えると共に、前記支柱と前記端子との間に前記金属バーを挟持しつつ前記素子側螺合部が前記端子と螺合すると共に、前記支柱と前記螺合部材との間に前記回路基板を挟持しつつ前記基板側螺合部が前記螺合部材と螺合してあることを特徴とする。   On the other hand, a storage element module of the present invention includes a plurality of storage elements, a metal bar that conductively connects the storage elements, a circuit board that is conductively connected while fixing the storage elements, and an electronic circuit that is mounted on the circuit board. An electrical storage element module comprising an electronic component to be configured, an element side screwing portion screwed into a terminal of the power storage element, and a screwing member on the circuit board side formed coaxially with the element side screwing portion; A column having a board-side screwing portion to be screwed, and the element-side screwing portion is screwed with the terminal while the metal bar is sandwiched between the column and the terminal. The board-side screwing portion is screwed with the screwing member while the circuit board is sandwiched between the screwing member and the screwing member.

本発明の蓄電素子モジュールによると、本発明の蓄電素子の接続構造を備えているため、上記の如き作用効果により、組立時の位置合わせが良好に行え、金属バーの締めつけトルクを大きくでき、しかも、放熱性も良好な蓄電素子モジュールとなる。   According to the storage element module of the present invention, since the connection structure of the storage element of the present invention is provided, the above-described effects can achieve good alignment during assembly, increase the tightening torque of the metal bar, and Thus, a storage element module with good heat dissipation is obtained.

以下、本発明の実施の形態について、図面を参照しながら説明する。図１は、蓄電素子の接続構造の一例を示す正面図であり、図２は、その接続構造の要部の一例を示す断面図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an example of the connection structure of the electricity storage elements, and FIG. 2 is a cross-sectional view showing an example of the main part of the connection structure.

本発明の蓄電素子の接続構造は、図１に示すように、複数の蓄電素子１を金属バー２で導電接続しつつ回路基板３に固定してあるものである。蓄電素子１は、回路基板３の回路パターンと導電接続されていても、導電接続されていなくてもよい（即ち、単なる固定でもよい）。また、金属バー２による導電接続は、直列でも並列でもよい。   As shown in FIG. 1, the connection structure of the power storage elements of the present invention is a structure in which a plurality of power storage elements 1 are fixed to a circuit board 3 while being conductively connected by metal bars 2. The power storage element 1 may or may not be conductively connected to the circuit pattern of the circuit board 3 (that is, may be simply fixed). The conductive connection by the metal bar 2 may be in series or in parallel.

また、回路基板３には、電子回路を構成する電子部品（図示省略）が実装されていてもよく、電圧均等化回路などを構成して蓄電素子モジュールとしてもよい。蓄電素子モジュールについては、後に詳述する。   The circuit board 3 may be mounted with an electronic component (not shown) constituting an electronic circuit, or may be a voltage equalization circuit or the like to be a storage element module. The power storage element module will be described in detail later.

蓄電素子１としては、蓄電機能を有するものであれば、各種のコンデンサ（電気二重層キャパシタを含む）、二次電池など何れでもよい。蓄電素子１のパッケージ形態は何れでも良いが、雌ネジ型の端子１ａを有するものが好ましい。   The power storage element 1 may be any of various capacitors (including an electric double layer capacitor), a secondary battery, and the like as long as it has a power storage function. The power storage element 1 may have any package shape, but preferably has a female screw type terminal 1a.

金属バー２は、銅、真鍮、アルミニウム等の金属に、必要に応じて貴金属メッキがなされたものが一般に使用され、金属バー２の断面サイズ（厚み，幅）は、使用時の電力（電流）の大きさなどに応じて、適宜決定される。金属バー２の両端には、円穴、長穴、切欠き穴などが設けられる。   The metal bar 2 is generally made of a metal such as copper, brass, or aluminum, precious metal plated as required, and the cross-sectional size (thickness, width) of the metal bar 2 is the power (current) in use. It is determined as appropriate according to the size of. A circular hole, a long hole, a notch hole, and the like are provided at both ends of the metal bar 2.

本発明の蓄電素子の接続構造には、図２に示すような支柱１０が使用される。支柱１０は、蓄電素子１の端子１ａに螺合する素子側螺合部１１と、その素子側螺合部１１と同軸に形成され回路基板側の螺合部材２２と螺合する基板側螺合部１２とを有する。本実施形態では、支柱１０の素子側螺合部１１は雄ネジで構成されていると共に、基板側螺合部１２は雌ネジで構成されている例を示す。   The support | pillar 10 as shown in FIG. 2 is used for the connection structure of the electrical storage element of this invention. The support column 10 is formed on the element side screwing portion 11 that is screwed to the terminal 1a of the electric storage element 1, and the board side screwing that is formed coaxially with the element side screwing portion 11 and screwed with the screw member 22 on the circuit board side. Part 12. In this embodiment, the element side screwing part 11 of the support | pillar 10 is comprised with the external thread, and the board | substrate side screwing part 12 shows the example comprised with the internal thread.

金属バー２による蓄電素子１同士の導電接続は、支柱１０と端子１ａとの間に金属バー２が挟持されるように、素子側螺合部１１が端子１ａと螺合することで行う。このとき、支柱１０が、図３（ａ）に示すような六角ボルト形状や、図３（ｂ）に示すようなドライバーとの係合部１３を有していれば、より簡易かつ強力に、支柱１０を用いて金属バー２を締めつけることができる。その他、支柱１０の本体部１４の表面に、凹凸加工を施してもよい。   The conductive connection between the electricity storage elements 1 by the metal bar 2 is performed by screwing the element side screwing portion 11 with the terminal 1a so that the metal bar 2 is sandwiched between the support column 10 and the terminal 1a. At this time, if the support column 10 has a hexagonal bolt shape as shown in FIG. 3A and an engagement portion 13 with a driver as shown in FIG. The metal bar 2 can be fastened using the support 10. In addition, the surface of the main body portion 14 of the support column 10 may be subjected to uneven processing.

支柱１０は、好ましくは回路基板３への導通を行うために、導電性材料が用いられるが、締め付けの際の強度などを考慮すると、真鍮などの金属が好ましい。支柱１０の本体部１４の高さは、モジュールの高さを考慮すると低い方が好ましいが、十分な放熱性を確保する上で、５〜８ｍｍ程度が好ましい。   The support column 10 is preferably made of a conductive material to conduct to the circuit board 3, but a metal such as brass is preferable in consideration of the strength at the time of fastening. The height of the main body portion 14 of the support column 10 is preferably low considering the height of the module, but is preferably about 5 to 8 mm in order to ensure sufficient heat dissipation.

本発明では、複数の蓄電素子１が支柱１０を介して回路基板３に固定されるが、その際、支柱１０と螺合部材２２との間に回路基板３を挟持しつつ基板側螺合部１２が螺合部材２２と螺合される。本実施形態のように、螺合部材２２として雄ネジを用いる場合、雄ネジの頭部と支柱１０との間に回路基板３が挟持される。   In the present invention, the plurality of power storage elements 1 are fixed to the circuit board 3 via the support posts 10. At this time, the circuit board-side screwing portion is held while the circuit board 3 is sandwiched between the support posts 10 and the screwing members 22. 12 is screwed with the screwing member 22. When a male screw is used as the screwing member 22 as in this embodiment, the circuit board 3 is sandwiched between the head of the male screw and the support column 10.

螺合部材２２を螺合する際に、支柱１０の基板側螺合部１２の底面１２ａに、螺合部材２２の先端が突き当たる状態で、回路基板３への固定が適度に行えるような長さの螺合部材２２を使用することで、回路基板３を破損することなく、螺合部材２２の締め付けによって、金属バー２の増し締めを行うことができる。また、当該増し締めを好適に行えるように、支柱１０の基板側螺合部１２のネジ径（タップサイズ）を、素子側螺合部１１のネジ径（ボルトサイズ）と同等又はそれ以上にするのが好ましい。   When the screwing member 22 is screwed, such a length that the fixing to the circuit board 3 can be appropriately performed in a state where the tip of the screwing member 22 abuts the bottom surface 12a of the board side screwing portion 12 of the support column 10. By using the screw member 22, the metal bar 2 can be tightened by tightening the screw member 22 without damaging the circuit board 3. In addition, the screw diameter (tap size) of the board-side screwing portion 12 of the support column 10 is set to be equal to or larger than the screw diameter (bolt size) of the element-side screwing portion 11 so that the retightening can be suitably performed. Is preferred.

回路基板３には、支柱１０の基板側螺合部１２（雌ネジ）に対応した位置に、取付穴３ａが設けられているが、取付穴としては長穴が好ましい。長穴を設ける場合の長径方向としては、蓄電素子１の一対の端子１ａの配列方向が好ましい。回路基板３は、単層配線基板、両面配線基板、多層配線基板など何れでもよい。   The circuit board 3 is provided with an attachment hole 3a at a position corresponding to the board-side threaded portion 12 (female screw) of the support column 10, and the attachment hole is preferably a long hole. As the major axis direction in the case of providing the long holes, the arrangement direction of the pair of terminals 1a of the electricity storage element 1 is preferable. The circuit board 3 may be any of a single-layer wiring board, a double-sided wiring board, a multilayer wiring board, and the like.

なお、図２に示す実施形態では、支柱１０の基板側螺合部１２は雌ネジで構成されているが、図３（ｃ）に示すように、基板側螺合部１２を雄ネジで構成することも可能である。その場合、螺合部材２２として雌ネジ（ナット）が用いられる。   In the embodiment shown in FIG. 2, the board-side screwing portion 12 of the support column 10 is constituted by a female screw. However, as shown in FIG. 3C, the board-side screwing portion 12 is constituted by a male screw. It is also possible to do. In that case, a female screw (nut) is used as the screwing member 22.

また、図２に示す実施形態では、基板側螺合部１２に対して、回路基板３を介して直接ネジ２２で締め付けを行っているが、更に筒状スペーサを介してネジ２２で締めつけることで、回路基板３を更に別の回路基板や函体に固定することができる。   In the embodiment shown in FIG. 2, the board-side screwing portion 12 is directly tightened with the screw 22 via the circuit board 3, but is further tightened with the screw 22 via the cylindrical spacer. The circuit board 3 can be further fixed to another circuit board or a box.

一方、本発明の蓄電素子モジュールは、以上のような蓄電素子の接続構造を備えるものである。従って、蓄電素子モジュールにおける追加の構成部分についてのみ説明する。   On the other hand, the storage element module of the present invention has the above-described connection structure of storage elements. Therefore, only the additional components in the storage element module will be described.

本発明の蓄電素子モジュールは、複数の蓄電素子と、これを導電接続する金属バーと、前記蓄電素子を固定しつつ導電接続された回路基板と、その回路基板に実装されて電子回路を構成する電子部品とを備える。   The storage element module of the present invention includes a plurality of storage elements, a metal bar that conductively connects the storage elements, a circuit board that is conductively connected while fixing the storage elements, and an electronic circuit that is mounted on the circuit board. Electronic components.

電子回路としては、電圧均等化回路、電源安定化回路、高電圧発生回路、充電回路、電圧モニター回路、過電圧防止回路、電流回生回路など、蓄電素子を構成部品又は電源とするものであれば何れでもよい。特に、蓄電素子が電気二重層キャパシタである場合、電圧均等化回路、充電回路、電圧モニター回路などがモジュール化される場合がある。このような電子回路は、直列に接続された各々の蓄電素子に対して、並列に導電接続される。   Electronic circuits such as voltage equalization circuit, power supply stabilization circuit, high voltage generation circuit, charging circuit, voltage monitoring circuit, overvoltage prevention circuit, current regeneration circuit, etc., as long as the storage element is a component or power source But you can. In particular, when the storage element is an electric double layer capacitor, a voltage equalization circuit, a charging circuit, a voltage monitoring circuit, and the like may be modularized. Such an electronic circuit is conductively connected in parallel to each of the storage elements connected in series.

回路基板には、実装される電子部品とともに電子回路を構成する配線パターンが形成される。また、配線パターンは、蓄電素子の取付穴にランド等を有しており、これを介して蓄電素子が電子回路に導電接続される。   On the circuit board, a wiring pattern constituting the electronic circuit is formed together with the electronic component to be mounted. Further, the wiring pattern has a land or the like in the mounting hole of the power storage element, and the power storage element is conductively connected to the electronic circuit through this.

本発明の蓄電素子の接続構造の一例を示す正面図The front view which shows an example of the connection structure of the electrical storage element of this invention 本発明の蓄電素子の接続構造の要部の一例を示す断面図Sectional drawing which shows an example of the principal part of the connection structure of the electrical storage element of this invention 本発明の蓄電素子の接続構造の要部の他の例を示す斜視図The perspective view which shows the other example of the principal part of the connection structure of the electrical storage element of this invention 従来の蓄電素子の接続構造の一例を示す正面図Front view showing an example of a connection structure of a conventional power storage element 従来の蓄電素子の接続構造の他の例を示す正面図The front view which shows the other example of the connection structure of the conventional electrical storage element

符号の説明Explanation of symbols

１ 蓄電素子
１ａ 端子
２ 金属バー
３ 回路基板
３ａ 取付穴
１０ 支柱
１１ 素子側螺合部（雄ネジ）
１２ 基板側螺合部（雌ネジ）
２２ 回路基板側の螺合部材（ネジ） DESCRIPTION OF SYMBOLS 1 Power storage element 1a Terminal 2 Metal bar 3 Circuit board 3a Mounting hole 10 Post 11 Element side screwing part (male thread)
12 Board side screwing part (Female thread)
22 Threaded member (screw) on the circuit board side

Claims (4)

複数の蓄電素子を金属バーで導電接続しつつ回路基板に固定してある蓄電素子の接続構造であって、
前記蓄電素子の端子に螺合する素子側螺合部と、その素子側螺合部と同軸に形成され前記回路基板側の螺合部材と螺合する基板側螺合部とを有する支柱を備えると共に、
前記支柱と前記端子との間に前記金属バーを挟持しつつ前記素子側螺合部が前記端子と螺合すると共に、前記支柱と前記螺合部材との間に前記回路基板を挟持しつつ前記基板側螺合部が前記螺合部材と螺合してある蓄電素子の接続構造。 A storage element connection structure in which a plurality of storage elements are conductively connected with a metal bar and fixed to a circuit board,
A column having an element-side screwing portion that is screwed to a terminal of the power storage element, and a substrate-side screwing portion that is formed coaxially with the element-side screwing portion and is screwed with a screwing member on the circuit board side. With
The element side screwing portion is screwed with the terminal while holding the metal bar between the column and the terminal, and the circuit board is held between the column and the screwing member. An electrical storage element connection structure in which a board-side screwing portion is screwed with the screwing member. 前記支柱の素子側螺合部は雄ネジで構成されていると共に、前記支柱の基板側螺合部は雌ネジで構成されている請求項１記載の蓄電素子の接続構造。   2. The storage element connection structure according to claim 1, wherein the element side screwing portion of the support column is configured with a male screw, and the substrate side screwing unit of the support column is configured with a female screw. 前記回路基板には、前記支柱の雌ネジに対応した位置に長穴が設けられている請求項２記載の蓄電素子の接続構造。   The electrical storage element connection structure according to claim 2, wherein an elongated hole is provided in the circuit board at a position corresponding to the female screw of the support column. 複数の蓄電素子と、これを導電接続する金属バーと、前記蓄電素子を固定しつつ導電接続された回路基板と、その回路基板に実装されて電子回路を構成する電子部品とを備える蓄電素子モジュールであって、
前記蓄電素子の端子に螺合する素子側螺合部と、その素子側螺合部と同軸に形成され前記回路基板側の螺合部材と螺合する基板側螺合部とを有する支柱を備えると共に、
前記支柱と前記端子との間に前記金属バーを挟持しつつ前記素子側螺合部が前記端子と螺合すると共に、前記支柱と前記螺合部材との間に前記回路基板を挟持しつつ前記基板側螺合部が前記螺合部材と螺合してある蓄電素子モジュール。
A power storage element module comprising a plurality of power storage elements, a metal bar that conductively connects the power storage elements, a circuit board that is conductively connected while fixing the power storage elements, and an electronic component that is mounted on the circuit board and constitutes an electronic circuit Because
A column having an element-side screwing portion that is screwed to a terminal of the power storage element, and a substrate-side screwing portion that is formed coaxially with the element-side screwing portion and is screwed with a screwing member on the circuit board side. With
The element side screwing portion is screwed with the terminal while holding the metal bar between the column and the terminal, and the circuit board is held between the column and the screwing member. A power storage element module in which a board side screwing portion is screwed with the screwing member.
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