JP2010118304A - Terminal structure for secondary battery, secondary battery and secondary battery module - Google Patents

Terminal structure for secondary battery, secondary battery and secondary battery module Download PDF

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Publication number
JP2010118304A
JP2010118304A JP2008292297A JP2008292297A JP2010118304A JP 2010118304 A JP2010118304 A JP 2010118304A JP 2008292297 A JP2008292297 A JP 2008292297A JP 2008292297 A JP2008292297 A JP 2008292297A JP 2010118304 A JP2010118304 A JP 2010118304A
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Prior art keywords
secondary battery
opening
base
bolt
predetermined direction
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Toshiharu Katagiri
寿治 片桐
Kenji Suzuki
健司 鈴木
Noriyasu Shamoto
紀康 社本
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Tokai Rika Co Ltd
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Tokai Rika Co Ltd
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Priority to JP2008292297A priority Critical patent/JP2010118304A/en
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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: a terminal structure for a secondary battery, in which a bolt as a connecting terminal section can be attached after the secondary battery is assembled; the secondary battery; and a secondary battery module. <P>SOLUTION: A positive electrode terminal 3 is roughly composed by being provided with a positive electrode plate 30, a connecting section 31, a bolt 32 and a bolt fixing section 40. The bolt 32 is provided with a base section 320, a screw thread section 321, and a projection section 322. In this case, the base section 320 is inserted to an insertion hole 44 of the bolt fixing section 40 through an insertion hole 313 of the connecting section 31. The bolt 32 has a tip section of the base section 320 which is brought into contact with a mobile section 41 when rotated in the direction of an arrow C, the rotation in the direction of the arrow C is restricted by an end section 43 and furthermore, the rotation in the direction which is reverse to the direction of the arrow C is restricted by a side surface section of the mobile section 41. Thus, the bolt 32 can be easily attached after the secondary battery 2 is assembled. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、二次電池の端子構造、二次電池及び二次電池モジュールに関する。   The present invention relates to a terminal structure of a secondary battery, a secondary battery, and a secondary battery module.

従来の技術として、接続部が設けられた端子を有する単位電池と、単位電池の隣接する端子間を連結する連結具と、を備えた電池モジュールが知られている（例えば、特許文献１参照）。   As a conventional technique, a battery module including a unit battery having a terminal provided with a connection portion and a connecting tool that connects adjacent terminals of the unit battery is known (see, for example, Patent Document 1). .

この電池モジュールによると、連結具を端子の接続部に容易に取り付けることができるので、複数の単位電池を容易に連結することができる。
特開２００８―７１７３３号公報 According to this battery module, since the coupling tool can be easily attached to the terminal connection portion, a plurality of unit batteries can be easily coupled.
JP 2008-71733 A

しかし、従来の電池モジュールは、端子に雄ねじが形成されており、単位電池の組付けのとき、雄ねじを形成した際の切りくず等が単位電池の内部に混入する可能性があった。   However, the conventional battery module has a male screw formed on the terminal. When the unit battery is assembled, there is a possibility that chips or the like when the male screw is formed may be mixed into the unit battery.

従って本発明の目的は、二次電池を組み上げた後に、接続端子部としてのボルトを取り付けることができる二次電池の端子構造、二次電池及び二次電池モジュールを提供する。   Therefore, the objective of this invention provides the terminal structure of a secondary battery, a secondary battery, and a secondary battery module which can attach the volt | bolt as a connection terminal part after assembling a secondary battery.

（１）本発明は上記目的を達成するため、二次電池本体に設けられた絶縁部と、前記絶縁部に設けられ、前記二次電池本体に収容される発電要素と電気的に接続される電極部と、前記電極部と電気的に接続し、第１の開口を有する電極接続部と、箱形状を有して前記絶縁部に設けられ、前記第１の開口に基づく第２の開口を有する固定部と、基部、及び前記基部上に設けられた接続部を有し、前記基部が前記第１の開口を介して前記第２の開口に挿入され、前記基部が前記第２の開口の所定の部分に接触することで、所定の方向の回転を規制される接続端子部と、を備えた二次電池の端子構造を提供する。 (1) In order to achieve the above object, the present invention is electrically connected to an insulating portion provided in a secondary battery main body and a power generation element provided in the insulating portion and accommodated in the secondary battery main body. An electrode part, an electrode connection part electrically connected to the electrode part and having a first opening, a box-like shape provided in the insulating part, and a second opening based on the first opening A fixing portion, a base portion, and a connection portion provided on the base portion, wherein the base portion is inserted into the second opening through the first opening, and the base portion is formed of the second opening. Provided is a secondary battery terminal structure including a connection terminal portion that is restricted from rotating in a predetermined direction by contacting a predetermined portion.

（２）本発明は上記目的を達成するため、前記固定部は、側面部に板形状となるように形成された可動部を有し、前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、前記変位に基づく弾性力によって前記基部の前記所定の方向とは反対方向の回転を規制する前記（１）に記載の二次電池の端子構造を提供する。 (2) In order to achieve the above object, the fixed part has a movable part formed in a side surface so as to have a plate shape, and the movable part is rotated in the predetermined direction of the base part. The terminal structure of the secondary battery according to (1), wherein the second opening is displaced outwardly and the rotation of the base portion in a direction opposite to the predetermined direction is regulated by an elastic force based on the displacement. I will provide a.

（３）本発明は上記目的を達成するため、前記固定部は、側面部に板形状となるように形成された可動部と、前記可動部と前記側面部との間に第３の開口を有し、前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、前記基部は、さらに前記所定の方向の回転によって前記第３の開口に嵌り、前記所定の方向、及び前記所定の方向の反対方向の回転を規制される前記（１）に記載の二次電池の端子構造を提供する。 (3) In order to achieve the above object, in the present invention, the fixed portion has a movable portion formed in a plate shape on a side surface portion, and a third opening between the movable portion and the side surface portion. The movable portion is displaced outwardly of the second opening by the rotation of the base portion in the predetermined direction, and the base portion is further fitted into the third opening by the rotation of the predetermined direction. The terminal structure of the secondary battery according to (1), wherein rotation in the predetermined direction and in a direction opposite to the predetermined direction is restricted.

（４）本発明は上記目的を達成するため、前記接続部は、雄ねじ部を有する前記（１）に記載の二次電池の端子構造を提供する。 (4) In order to achieve the above object, the present invention provides the terminal structure of the secondary battery according to (1), wherein the connection portion has a male screw portion.

（５）本発明は上記目的を達成するため、前記基部は、矩形状を有する前記（１）に記載の二次電池の端子構造を提供する。 (5) In order to achieve the above object, the present invention provides the terminal structure of the secondary battery according to (1), wherein the base has a rectangular shape.

（６）本発明は上記目的を達成するため、前記基部は、略十字形状を有する前記（１）に記載の二次電池の端子構造を提供する。 (6) In order to achieve the above object, the present invention provides the terminal structure of the secondary battery according to (1), wherein the base has a substantially cross shape.

（７）本発明は上記目的を達成するため、絶縁性部材によって形成され、二次電池本体に設けられた絶縁部と、前記二次電池本体に収容される発電要素と電気的に接続される電極部と、前記電極部と電気的に接続し、第１の開口を有する電極接続部と、箱形状を有して前記絶縁部に設けられ、前記第１の開口に基づく第２の開口を有する固定部と、基部、及び前記基部上に設けられた接続部を有し、前記基部が前記第１の開口を介して前記第２の開口に挿入され、前記基部が前記第２の開口の所定の部分に接触することで、所定の方向の回転を規制される接続端子部と、を有する端子構造を少なくとも１つ備えた二次電池を提供する。 (7) In order to achieve the above object, the present invention is formed of an insulating member, and is electrically connected to an insulating portion provided in the secondary battery body and a power generation element housed in the secondary battery body. An electrode part, an electrode connection part electrically connected to the electrode part and having a first opening, a box-like shape provided in the insulating part, and a second opening based on the first opening A fixing portion, a base portion, and a connection portion provided on the base portion, wherein the base portion is inserted into the second opening through the first opening, and the base portion is formed of the second opening. Provided is a secondary battery including at least one terminal structure having a connection terminal portion that is restricted from rotating in a predetermined direction by contacting a predetermined portion.

（８）本発明は上記目的を達成するため、前記固定部は、側面部に板形状となるように形成された可動部を有し、前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、前記変位に基づく弾性力によって前記基部の前記所定の方向とは反対方向の回転を規制する前記（７）に記載の二次電池を提供する。 (8) In order to achieve the above object, the fixed portion has a movable portion formed on the side surface so as to have a plate shape, and the movable portion rotates in the predetermined direction of the base portion. The secondary battery according to (7), wherein the second battery is displaced outward by the second opening and the rotation of the base portion in a direction opposite to the predetermined direction is regulated by an elastic force based on the displacement. .

（９）本発明は上記目的を達成するため、前記固定部は、側面部に板形状となるように形成された可動部と、前記可動部と前記側面部との間に第３の開口を有し、前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、前記基部は、さらに前記所定の方向の回転によって前記第３の開口に嵌り、前記所定の方向、及び前記所定の方向の反対方向の回転を規制される前記（７）に記載の二次電池を提供する。 (9) In order to achieve the above object, the fixed portion includes a movable portion formed in a plate shape on a side surface portion, and a third opening between the movable portion and the side surface portion. The movable portion is displaced outwardly of the second opening by the rotation of the base portion in the predetermined direction, and the base portion is further fitted into the third opening by the rotation of the predetermined direction. The secondary battery according to (7), wherein rotation in the predetermined direction and in a direction opposite to the predetermined direction is restricted.

（１０）本発明は上記目的を達成するため、絶縁性部材によって形成され、二次電池本体に設けられた絶縁部と、前記二次電池本体に収容される発電要素と電気的に接続される電極部と、前記電極部と電気的に接続し、第１の開口を有する電極接続部と、箱形状を有して前記絶縁部に設けられ、前記第１の開口に基づく第２の開口を有する固定部と、基部、及び前記基部上に設けられた接続部を有し、前記基部が前記第１の開口を介して前記第２の開口に挿入され、前記基部が前記第２の開口の所定の部分に接触することで、所定の方向の回転を規制される接続端子部と、を有する端子構造を少なくとも１つ備えた複数の二次電池と、導電性部材によって形成され、所定の間隔で並べられた隣接する前記二次電池本体に設けられた前記接続端子部同士を電気的に接続する複数の導電板と、を備えた二次電池モジュールを提供する。 (10) In order to achieve the above object, the present invention is formed of an insulating member, and is electrically connected to an insulating portion provided in the secondary battery body and a power generation element housed in the secondary battery body. An electrode part, an electrode connection part electrically connected to the electrode part and having a first opening, a box-like shape provided in the insulating part, and a second opening based on the first opening A fixing portion, a base portion, and a connection portion provided on the base portion, wherein the base portion is inserted into the second opening through the first opening, and the base portion is formed of the second opening. A plurality of secondary batteries each having at least one terminal structure having a connection terminal portion that is restricted from rotating in a predetermined direction by contacting a predetermined portion, and a conductive member, and having a predetermined interval The connection end provided on the adjacent secondary battery body arranged in line A plurality of conductive plates that electrically connect the parts to each other, to provide a secondary battery module with.

このような発明によれば、二次電池を組み上げた後に、接続用のボルトを取り付けることができる。   According to such an invention, after the secondary battery is assembled, the connecting bolt can be attached.

以下に、本発明の二次電池の端子構造、二次電池及び二次電池モジュールの実施の形態を図面を参考にして詳細に説明する。   Hereinafter, embodiments of a terminal structure of a secondary battery, a secondary battery, and a secondary battery module according to the present invention will be described in detail with reference to the drawings.

[第１の実施の形態]
（電池モジュールの構成）
図１は、本発明の第１の実施の形態に係る電池モジュールの斜視図である。この電池モジュール（二次電池モジュール）１は、本発明における端子構造を正電極端子３及び負電極端子５側に有し、この複数の二次電池２を直列に接続して構成されている。本実施の形態においては、一例として、６つの二次電池２を直列に接続して、１つの電池モジュール１を作製するものとする。 [First embodiment]
(Battery module configuration)
FIG. 1 is a perspective view of the battery module according to the first embodiment of the present invention. The battery module (secondary battery module) 1 has a terminal structure according to the present invention on the positive electrode terminal 3 and negative electrode terminal 5 sides, and is configured by connecting the plurality of secondary batteries 2 in series. In the present embodiment, as an example, one secondary battery module 1 is manufactured by connecting six secondary batteries 2 in series.

また、電池モジュール１は、隣接する二次電池２を導電性部材によって板形状に形成されたバスバー（導電板）３３を介して電気的に接続して構成されている。   The battery module 1 is configured by electrically connecting adjacent secondary batteries 2 via a bus bar (conductive plate) 33 formed in a plate shape by a conductive member.

このバスバー３３による接続は、隣接する異なる電極同士、すなわち、正電極端子３と負電極端子５を接続することによって行われる。   The connection by the bus bar 33 is performed by connecting different adjacent electrodes, that is, the positive electrode terminal 3 and the negative electrode terminal 5.

（二次電池の構成）
図２は、本発明の第１の実施の形態に係る二次電池の概略図であり、図３は、本発明の第１の実施の形態に係る正電極端子の概略図である。 (Configuration of secondary battery)
FIG. 2 is a schematic diagram of the secondary battery according to the first embodiment of the present invention, and FIG. 3 is a schematic diagram of the positive electrode terminal according to the first embodiment of the present invention.

この二次電池２は、図２に示すように、充電を行うことによって繰り返し使用することができる蓄電池であり、一例として、発電要素としての電極群を内部に収容する本体（二次電池本体）２０と、本発明の端子構造を構成する正電極端子３、プレート（絶縁部）４及び負電極端子５と、を備えて概略構成されている。   As shown in FIG. 2, the secondary battery 2 is a storage battery that can be repeatedly used by charging. As an example, a main body (secondary battery main body) that houses therein an electrode group as a power generation element 20, a positive electrode terminal 3, a plate (insulating part) 4 and a negative electrode terminal 5 constituting the terminal structure of the present invention.

（正電極端子の構成）
正電極端子３は、図２に示すように、発電要素の正電極側に接続される正電極板（電極部）３０と、導電性部材によって形成され、プレート４を介して正電極板３０とかしめ部３１２において電気的に接続される接続部（電極接続部）３１と、ボルト（接続端子）３２と、プレート４に設けられ、可動部４１が形成されたボルト固定部（固定部）４０と、を備えて概略構成されている。 (Configuration of positive electrode terminal)
As shown in FIG. 2, the positive electrode terminal 3 is formed by a positive electrode plate (electrode part) 30 connected to the positive electrode side of the power generation element and a conductive member, and is connected to the positive electrode plate 30 via the plate 4. A connecting portion (electrode connecting portion) 31 that is electrically connected at the crimping portion 312, a bolt (connecting terminal) 32, a bolt fixing portion (fixing portion) 40 provided on the plate 4 and having a movable portion 41 formed thereon. Are generally configured.

接続部３１は、図３に示すように、かしめ部３１２が形成された電極固定部３１０と、ボルト挿入部（第１の開口）３１１と、を備え、ボルト挿入部３１１は、ボルト３２を挿入するため、基部３２０の形状に基づいたボルト挿入部３１１が設けられている。   As shown in FIG. 3, the connection portion 31 includes an electrode fixing portion 310 in which a caulking portion 312 is formed, and a bolt insertion portion (first opening) 311, and the bolt insertion portion 311 inserts the bolt 32. Therefore, a bolt insertion portion 311 based on the shape of the base 320 is provided.

ボルト３２は、導電性部材によって形成され、矩形状を有する基部３２０と、雄ねじが形成されたねじ山部（接続部）３２１と、ボルト３２を回転させるときに使われる凸部３２２と、を備えて概略構成されている。   The bolt 32 is formed of a conductive member, and includes a base portion 320 having a rectangular shape, a screw thread portion (connection portion) 321 in which a male screw is formed, and a convex portion 322 used when the bolt 32 is rotated. It is roughly structured.

（負電極端子の構成）
負電極端子５は、図２に示すように、発電要素の負電極側に接続される負電極板５０と、接続部３１と、ボルト３２と、ボルト固定部４０と、を備えて概略構成されている。なお、以下において、同様の形状、機能、及び構成を有する部分については、同じ符号を付し、その説明は省略するものとする。 (Configuration of negative electrode terminal)
As shown in FIG. 2, the negative electrode terminal 5 is schematically configured to include a negative electrode plate 50 connected to the negative electrode side of the power generation element, a connection portion 31, a bolt 32, and a bolt fixing portion 40. ing. In the following description, parts having the same shape, function, and configuration are denoted by the same reference numerals, and description thereof is omitted.

負電極端子５は、バスバー３３を介して隣接する二次電池の正電極端子と接続され、その接続は、上記の正電極端子３と同様に行われる。なお、上記した正電極端子３と負電極端子５は、主たる構成は同一であるので、以下においては、主に正電極端子３を例に取って説明を行う。   The negative electrode terminal 5 is connected to the positive electrode terminal of the adjacent secondary battery via the bus bar 33, and the connection is made in the same manner as the positive electrode terminal 3 described above. The positive electrode terminal 3 and the negative electrode terminal 5 described above have the same main configuration. Therefore, the following description will be given mainly using the positive electrode terminal 3 as an example.

（ボルト固定部の構成）
図４は、本発明の第１の実施の形態に係るボルト固定部の上面図である。図４は、接続部３１を取り外した状態でボルト固定部４０を上方から見た図である。 (Configuration of bolt fixing part)
FIG. 4 is a top view of the bolt fixing portion according to the first embodiment of the present invention. FIG. 4 is a view of the bolt fixing portion 40 as viewed from above with the connecting portion 31 removed.

このボルト固定部４０は、図４に示すように、可動部４１と、開口（第３の開口）４２と、端部（所定の部分）４３と、挿入孔（第２の開口）４４と、を備えて概略構成されている。   As shown in FIG. 4, the bolt fixing portion 40 includes a movable portion 41, an opening (third opening) 42, an end portion (predetermined portion) 43, an insertion hole (second opening) 44, Is generally configured.

可動部４１は、ボルト固定部４０の側面部に板形状となるように形成され、点対称となるように設けられている。また、可動部４１は、ボルト３２の基部３２０の所定の方向の回転に基づいて外側に向けて変形するよう構成されている。   The movable portion 41 is formed on the side surface portion of the bolt fixing portion 40 so as to have a plate shape, and is provided so as to be point-symmetric. The movable portion 41 is configured to be deformed outward based on the rotation of the base portion 320 of the bolt 32 in a predetermined direction.

ここで所定の方向とは、ボルト３２のねじ山部３２１に基づいて決まる方向であり、一例として、ねじ山部３２１が、右ねじであるとき、図４において、時計回りの方向を指すものとする。   Here, the predetermined direction is a direction determined based on the screw thread portion 321 of the bolt 32. As an example, when the screw thread portion 321 is a right-hand thread, the predetermined direction indicates a clockwise direction in FIG. To do.

開口４２は、一例として、ボルト３２の基部３２０の短手方向の幅に対応して設けられており、ボルト３２の所定の方向の回転に基づいて基部３２０が嵌るように構成されており、嵌ることによって、ボルト３２は、所定の方向の回転の反対方向の回転を規制される。   For example, the opening 42 is provided corresponding to the width in the short direction of the base 320 of the bolt 32, and is configured such that the base 320 fits based on the rotation of the bolt 32 in a predetermined direction. Thus, the bolt 32 is restricted from rotating in the direction opposite to the rotation in the predetermined direction.

端部４３は、ボルト３２の所定の方向の回転を規制するものである。   The end 43 regulates rotation of the bolt 32 in a predetermined direction.

挿入孔４４は、点対称となる形状を有している。   The insertion hole 44 has a shape that is point-symmetric.

プレート４に設けられた電極挿入孔４００は、正電極板３０の先端部が挿入される孔であり、この電極挿入孔４００と接続部３１の対応する穴を介して先端部を突出させたのち、ハイスピンカシメ等の公知の方法によってかしめ部３１２が形成される。   The electrode insertion hole 400 provided in the plate 4 is a hole into which the front end portion of the positive electrode plate 30 is inserted, and after the front end portion protrudes through the corresponding hole in the electrode insertion hole 400 and the connection portion 31. The caulking portion 312 is formed by a known method such as high spin caulking.

（動作）
以下に、本実施の形態における二次電池に関する動作を各図を参照して詳細に説明する。まず、二次電池２にボルト３２を固定する動作について説明する。なお、二次電池２は、ボルト３２、バスバー３３、ナット３４以外は、既に組付けられているものとする。 (Operation)
Hereinafter, the operation relating to the secondary battery in the present embodiment will be described in detail with reference to the drawings. First, the operation of fixing the bolt 32 to the secondary battery 2 will be described. The secondary battery 2 is already assembled except for the bolt 32, the bus bar 33, and the nut 34.

図５（ａ）は、本発明の第１の実施の形態に係るボルト挿入時のボルト固定部の図３におけるＡ−Ａ線断面図であり、（ｂ）は、ボルトを所定の方向に回転させた断面図であり、（ｃ）は、ボルトの回転が終了したときの断面図であり、図６は、本発明の第１の実施の形態に係る図３のＢ−Ｂ線断面図である。図５（ａ）、（ｂ）及び（ｃ）は、接続部３１の一部と、ボルト３２のねじ山部３２１が断面として示されている。   FIG. 5A is a cross-sectional view taken along line AA in FIG. 3 of the bolt fixing portion when the bolt is inserted according to the first embodiment of the present invention, and FIG. 5B is a rotation of the bolt in a predetermined direction. FIG. 6C is a cross-sectional view when the rotation of the bolt is finished, and FIG. 6 is a cross-sectional view taken along the line BB of FIG. 3 according to the first embodiment of the present invention. is there. 5A, 5 </ b> B, and 5 </ b> C show a part of the connection portion 31 and the thread portion 321 of the bolt 32 as a cross section.

作業者は、図３に示すように、基部３２０の方向を接続部３１の挿入孔３１３に合わせながら基部３２０を挿入孔３１３に挿入する。   As shown in FIG. 3, the operator inserts the base portion 320 into the insertion hole 313 while matching the direction of the base portion 320 with the insertion hole 313 of the connection portion 31.

作業者は、挿入されたボルト３２の凸部３２２を工具で挟むと、図５（ａ）に示す状態から所定の方向として矢印Ｃ方向（時計回り）にボルト３２を回転させる。   When the operator pinches the convex portion 322 of the inserted bolt 32 with a tool, the worker rotates the bolt 32 in the arrow C direction (clockwise) as a predetermined direction from the state shown in FIG.

ボルト３２は、矢印Ｃ方向に回転すると、基部３２０の先端部が可動部４１に接触し、さらに回転すると、図５（ｂ）に示すように、可動部４１を外側に向けて弾性変形させる。   When the bolt 32 rotates in the direction of arrow C, the tip of the base 320 comes into contact with the movable part 41, and when further rotated, as shown in FIG. 5B, the movable part 41 is elastically deformed outward.

作業者は、続けてボルト３２を回転させると、図５（ｃ）に示すように、ボルト３２の基部３２０の先端部が、開口４２に嵌り、弾性変形していた可動部４１は、元の状態に復帰する。   When the worker continues to rotate the bolt 32, as shown in FIG. 5C, the distal end portion of the base portion 320 of the bolt 32 fits into the opening 42, and the movable portion 41 that has been elastically deformed becomes the original one. Return to the state.

ボルト３２は、図５（ｃ）に示すように、端部４３によって矢印Ｃ方向の回転を規制され、また可動部４１の側面部によって矢印Ｃ方向とは反対の方向の回転を規制される。   As shown in FIG. 5C, the bolt 32 is restricted from rotating in the arrow C direction by the end portion 43, and is restricted from rotating in the direction opposite to the arrow C direction by the side surface portion of the movable portion 41.

作業者は、バスバー３３をねじ山部３２１に挿入し、続いて、ナット３４をねじ山部３２１に挿入する。作業者は、所定の方向にナット３４を回転させ、ナット３４によってバスバー３３と接続部３１を固定する。   The operator inserts the bus bar 33 into the threaded portion 321, and subsequently inserts the nut 34 into the threaded portion 321. The operator rotates the nut 34 in a predetermined direction, and fixes the bus bar 33 and the connecting portion 31 with the nut 34.

また、作業員は、図１に示す電池モジュール１を組み立てるため、二次電池２を所定の間隔で並べ、隣接する二次電池２の負電極端子５のボルト３２にバスバー３３を挿入し、ナット３４をボルト３２に挿入し、バスバー３３と接続部３１を固定する。   Further, in order to assemble the battery module 1 shown in FIG. 1, the worker arranges the secondary batteries 2 at a predetermined interval, inserts the bus bar 33 into the bolt 32 of the negative electrode terminal 5 of the adjacent secondary battery 2, and nuts 34 is inserted into the bolt 32, and the bus bar 33 and the connecting portion 31 are fixed.

このとき、図６に示すように、ボルト３２は、上下左右方向に余裕があるため、隣接する二次電池２に高低差等が生じていても、確実に隣接する二次電池２を接続することができる。   At this time, as shown in FIG. 6, since the bolt 32 has a margin in the vertical and horizontal directions, the adjacent secondary battery 2 is reliably connected even if the adjacent secondary battery 2 has a height difference or the like. be able to.

（効果）
（１）上記した第１の実施の形態における二次電池２によれば、正電極端子３、プレート４及び負電極端子５を本体２０に組付けたのちに、ボルト３２を二次電池２に取り付けることができるので、本体２０内にボルト３２の切りくずといった不純物の混入を防止することができる。 (effect)
(1) According to the secondary battery 2 in the first embodiment described above, the bolt 32 is attached to the secondary battery 2 after the positive electrode terminal 3, the plate 4 and the negative electrode terminal 5 are assembled to the main body 20. Since it can be attached, impurities such as chips of the bolt 32 can be prevented from entering the main body 20.

（２）上記した第１の実施の形態における二次電池２によれば、複数の二次電池２を所定の間隔に並べて電池モジュール１を作製するとき、各二次電池２に高低差が生じていても、ボルト３２の取り付けに余裕があるため、隣接する二次電池２とのバスバー３３を介した電気的な接続を正確に行うことができる。 (2) According to the secondary battery 2 in the first embodiment described above, when the battery module 1 is produced by arranging a plurality of secondary batteries 2 at a predetermined interval, a difference in height occurs in each secondary battery 2. However, since there is a margin in the attachment of the bolt 32, electrical connection with the adjacent secondary battery 2 via the bus bar 33 can be accurately performed.

（３）上記した第１の実施の形態における二次電池２によれば、簡単な構成でボルト３２をボルト固定部４０に保持することができる。 (3) According to the secondary battery 2 in the first embodiment described above, the bolt 32 can be held on the bolt fixing portion 40 with a simple configuration.

（４）上記した第１の実施の形態における二次電池２によれば、ボルト３２は、ねじ山部３２１を有しているので、ナット３４を用いて容易にバスバー３３を接続部３１に電気的に接続することができる。 (4) According to the secondary battery 2 in the first embodiment described above, since the bolt 32 has the thread portion 321, the bus bar 33 can be easily electrically connected to the connection portion 31 using the nut 34. Can be connected.

（５）上記した第１の実施の形態における二次電池２によれば、ボルト３２は、矩形状を備えた基部３２０を有しているので、接続部３１との接点を広くとることができ、接続部３１との電気的な接続を確実に行うことができる。 (5) According to the secondary battery 2 in the first embodiment described above, the bolt 32 has the base portion 320 having a rectangular shape, so that a wide contact point with the connection portion 31 can be taken. Thus, electrical connection with the connecting portion 31 can be reliably performed.

（６）上記した第１の実施の形態における二次電池２によれば、ボルト３２は、矩形状を備えた基部３２０を有しているので、ボルト固定部４０に容易に固定することができる。 (6) According to the secondary battery 2 in the first embodiment described above, since the bolt 32 has the base 320 having a rectangular shape, it can be easily fixed to the bolt fixing portion 40. .

（７）上記した第１の実施の形態における二次電池２によれば、隣接する二次電池２の電極端子同士を容易に接続することができるので、電池モジュール１の作製が容易となる。 (7) According to the secondary battery 2 in the first embodiment described above, the electrode terminals of the adjacent secondary batteries 2 can be easily connected to each other, so that the battery module 1 can be easily manufactured.

（８）上記した第１の実施の形態における二次電池２によれば、ボルト固定部４０の短方向を短くできるため、二次電池２の薄型化にも対応することができる。 (8) According to the secondary battery 2 in the first embodiment described above, since the short direction of the bolt fixing portion 40 can be shortened, the secondary battery 2 can be made thinner.

[第２の実施の形態]
（ボルト固定部の構成）
図７（ａ）は、本発明の第２の実施の形態に係るボルト固定部の概略図であり、（ｂ）は、ボルトを回転させたときのボルト固定部の概略図である。図７（ａ）及び（ｂ）は、ボルト固定部４０ａの図３のＡ−Ａ線断面図を表している。以下に第１の実施の形態と同様の機能、及び構成を有する部分については、共通の符号を付し、説明は省略するものとする。 [Second Embodiment]
(Configuration of bolt fixing part)
FIG. 7A is a schematic diagram of a bolt fixing portion according to the second embodiment of the present invention, and FIG. 7B is a schematic diagram of the bolt fixing portion when the bolt is rotated. FIGS. 7A and 7B are cross-sectional views taken along line AA of FIG. 3 of the bolt fixing portion 40a. In the following, parts having functions and configurations similar to those of the first embodiment are denoted by common reference numerals, and description thereof is omitted.

第２の実施の形態は、第１の実施の形態と比べて、ボルト３２が挿入される挿入孔４４ａの形状が異なっている。   The second embodiment differs from the first embodiment in the shape of the insertion hole 44a into which the bolt 32 is inserted.

ボルト固定部４０ａは、開口方向に延伸した可動部４１ａと、延伸に伴って幅が狭くなった開口４２ａと、可動部４１ａの延伸によって形状が変化した挿入孔４４ａと、を備えて概略構成されている。なお、ボルト３２の形状及び機能は、第１の実施の形態と同様である。   The bolt fixing portion 40a is roughly configured to include a movable portion 41a that extends in the opening direction, an opening 42a that becomes narrower along with the extension, and an insertion hole 44a whose shape changes due to the extension of the movable portion 41a. ing. The shape and function of the bolt 32 are the same as those in the first embodiment.

（動作）
作業者は、基部３２０の方向を接続部３１の挿入孔３１３に合わせながら基部３２０を挿入孔３１３に挿入する。 (Operation)
The operator inserts the base 320 into the insertion hole 313 while aligning the direction of the base 320 with the insertion hole 313 of the connection portion 31.

作業者は、挿入されたボルト３２の凸部３２２を工具で挟むと、図７（ａ）に示す状態から矢印Ｃ方向にボルト３２を回転させる。   When the operator pinches the convex portion 322 of the inserted bolt 32 with a tool, the worker rotates the bolt 32 in the arrow C direction from the state shown in FIG.

ボルト３２は、矢印Ｃ方向に回転すると、その先端部が可動部４１ａに接触し、さらに回転すると、図７（ｂ）に示すように、可動部４１ａを外側に向けて弾性変形させる。   When the bolt 32 rotates in the direction of arrow C, the tip of the bolt 32 comes into contact with the movable portion 41a. When the bolt 32 further rotates, the movable portion 41a is elastically deformed outward as shown in FIG. 7B.

作業者は、続けてボルト３２を回転させると、ボルト３２の基部３２０は、可動部４１ａを弾性変形させながらその側面部が端部４３に接触する。   When the worker continues to rotate the bolt 32, the side portion of the base portion 320 of the bolt 32 comes into contact with the end portion 43 while elastically deforming the movable portion 41 a.

ボルト３２は、図７（ｂ）に示すように、端部４３によって矢印Ｃ方向の回転を規制され、可動部４１ａの弾性力によって矢印Ｃ方向とは反対の方向の回転を規制される。   As shown in FIG. 7B, the bolt 32 is restricted from rotating in the direction of arrow C by the end 43, and is restricted from rotating in the direction opposite to the direction of arrow C by the elastic force of the movable part 41a.

作業者は、バスバー３３をねじ山部３２１に挿入し、続いて、ナット３４をねじ山部３２１に挿入する。作業者は、所定の方向にナット３４を回転させ、ナット３４によってバスバー３３と接続部３１を固定する。   The operator inserts the bus bar 33 into the threaded portion 321, and subsequently inserts the nut 34 into the threaded portion 321. The operator rotates the nut 34 in a predetermined direction, and fixes the bus bar 33 and the connecting portion 31 with the nut 34.

電池モジュール１の作製については、第１の実施の形態と同様に行われる。   The battery module 1 is manufactured in the same manner as in the first embodiment.

（効果）
（１）上記した第２の実施の形態における二次電池２によれば、容易にボルト３２をボルト固定部４０ａから取り外すことができる。なお、以下における各実施の形態において、第１の実施の形態の効果とは異なる点について記載するものとする。 (effect)
(1) According to the secondary battery 2 in the above-described second embodiment, the bolt 32 can be easily detached from the bolt fixing portion 40a. In each embodiment described below, points different from the effects of the first embodiment are described.

[第３の実施の形態]
（ボルト固定部の構成）
図８（ａ）は、本発明の第３の実施の形態に係るボルト固定部の概略図であり、（ｂ）は、ボルトを回転させたときのボルト固定部の概略図である。 [Third embodiment]
(Configuration of bolt fixing part)
FIG. 8A is a schematic diagram of a bolt fixing portion according to the third embodiment of the present invention, and FIG. 8B is a schematic diagram of the bolt fixing portion when the bolt is rotated.

第３の実施の形態におけるボルト固定部４０ｂは、図７（ａ）に示す端部４３を端部４３ａとしたものであり、それに伴って開口４２ｂの形状、及び挿入孔４４ｂの形状が変化している。   The bolt fixing portion 40b in the third embodiment has an end portion 43a as the end portion 43 shown in FIG. 7A, and the shape of the opening 42b and the shape of the insertion hole 44b change accordingly. ing.

端部４３ａは、ボルト３２の基部３２０が矢印Ｃ方向に回転するとき、基部３２０の先端部が開口４２ｂに嵌るように設けられている。   The end 43a is provided so that the tip of the base 320 fits into the opening 42b when the base 320 of the bolt 32 rotates in the direction of arrow C.

（動作）
作業者は、基部３２０の方向を接続部３１の挿入孔３１３に合わせながら基部３２０を挿入孔３１３に挿入する。 (Operation)
The operator inserts the base 320 into the insertion hole 313 while aligning the direction of the base 320 with the insertion hole 313 of the connection portion 31.

作業者は、挿入されたボルト３２の凸部３２２を工具で挟むと、図８（ａ）に示す状態から矢印Ｃ方向にボルト３２を回転させる。   When the operator pinches the convex portion 322 of the inserted bolt 32 with a tool, the worker rotates the bolt 32 in the direction of arrow C from the state shown in FIG.

ボルト３２は、矢印Ｃ方向に回転すると、その先端部が可動部４１ａに接触し、さらに回転すると、可動部４１ａを外側に向けて弾性変形させる。   When the bolt 32 rotates in the direction of the arrow C, the tip thereof comes into contact with the movable portion 41a, and when it further rotates, the movable portion 41a is elastically deformed toward the outside.

作業者は、続けてボルト３２を回転させると、基部３２０の側面部が、端部４３ａに接触する。   When the worker continuously rotates the bolt 32, the side surface portion of the base portion 320 comes into contact with the end portion 43a.

ボルト３２は、図８（ｂ）に示すように、端部４３ａによって矢印Ｃ方向の回転を規制され、可動部４１ａによって矢印Ｃ方向とは反対の方向の回転を規制される。   As shown in FIG. 8B, the bolt 32 is restricted from rotating in the direction of the arrow C by the end 43a, and is restricted from rotating in the direction opposite to the direction of the arrow C by the movable part 41a.

作業者は、バスバー３３をねじ山部３２１に挿入し、続いて、ナット３４をねじ山部３２１に挿入する。作業者は、所定の方向にナット３４を回転させ、ナット３４によってバスバー３３と接続部３１を固定する。   The operator inserts the bus bar 33 into the threaded portion 321, and subsequently inserts the nut 34 into the threaded portion 321. The operator rotates the nut 34 in a predetermined direction, and fixes the bus bar 33 and the connecting portion 31 with the nut 34.

電池モジュール１の作製については、第１の実施の形態と同様に行われる。   The battery module 1 is manufactured in the same manner as in the first embodiment.

（効果）
（１）上記した第３の実施の形態における二次電池２によれば、容易にボルト３２を取り付けることができる。 (effect)
(1) According to the secondary battery 2 in the above-described third embodiment, the bolt 32 can be easily attached.

[第４の実施の形態]
（正電極端子の構成）
図９は、本発明の第４の実施の形態に係る正電極端子の概略図であり、図１０（ａ）は、本発明の第４の実施の形態に係るボルト固定部の概略図であり、（ｂ）は、ボルトを回転させたときのボルト固定部の概略図であり、図１１は、本発明の第４の実施の形態に係る接続部の挿入孔を裏から見た概略図である。 [Fourth embodiment]
(Configuration of positive electrode terminal)
FIG. 9 is a schematic diagram of a positive electrode terminal according to the fourth embodiment of the present invention, and FIG. 10A is a schematic diagram of a bolt fixing portion according to the fourth embodiment of the present invention. (B) is the schematic of the bolt fixing | fixed part when rotating a volt | bolt, FIG. 11 is the schematic which looked at the insertion hole of the connection part which concerns on the 4th Embodiment of this invention from the back. is there.

第４の実施の形態におけるボルト３２ａは、上記の実施の形態のボルト３２に比べ、その基部の形状が異なっている。ボルト３２ａは、略十字形状を有する基部３２０ａを有している。   The bolt 32a in the fourth embodiment is different in base shape from the bolt 32 in the above embodiment. The bolt 32a has a base 320a having a substantially cross shape.

また、接続部３１ａは、図９に示すように、ボルト３２ａの基部３２０ａに合わせて、ボルト挿入部３１１ａに略十字形状の挿入孔３１３ａを有している。   Further, as shown in FIG. 9, the connection portion 31a has a substantially cross-shaped insertion hole 313a in the bolt insertion portion 311a in accordance with the base portion 320a of the bolt 32a.

ボルト固定部４０ｃは、図１０（ａ）及び（ｂ）に示すように、可動部４１ｂと、端部４３ｂと、開口４２ｃと、挿入孔４４ｃと、を備えて概略構成されている。   As shown in FIGS. 10A and 10B, the bolt fixing portion 40c is schematically configured to include a movable portion 41b, an end portion 43b, an opening 42c, and an insertion hole 44c.

（動作）
作業者は、基部３２０ａの方向を接続部３１ａの挿入孔３１３ａに合わせながら基部３２０ａを挿入孔３１３ａに挿入する。 (Operation)
The operator inserts the base 320a into the insertion hole 313a while aligning the direction of the base 320a with the insertion hole 313a of the connection portion 31a.

作業者は、挿入されたボルト３２ａの凸部３２２を工具で挟むと、図１０（ａ）の状態から矢印Ｃ方向にボルト３２ａを回転させる。   When the operator pinches the convex portion 322 of the inserted bolt 32a with a tool, the worker rotates the bolt 32a in the direction of arrow C from the state of FIG.

ボルト３２ａは、矢印Ｃ方向に回転すると、基部３２０ａの先端部が可動部４１ａに接触し、さらに回転すると、可動部４１ａを外側に向けて弾性変形させる。   When the bolt 32a rotates in the direction of arrow C, the tip of the base portion 320a contacts the movable portion 41a, and when further rotated, the movable portion 41a is elastically deformed outward.

作業者は、続けてボルト３２ａを回転させると、図１０（ｂ）に示すように、ボルト３２ａの基部３２０ａの先端部が、開口４２ｃに嵌り、弾性変形していた可動部４１ｂは、元の状態に復帰する。   When the worker continues to rotate the bolt 32a, as shown in FIG. 10B, the tip of the base portion 320a of the bolt 32a fits into the opening 42c, and the movable portion 41b that has been elastically deformed is Return to the state.

ボルト３２ａは、図１０（ｂ）に示すように、端部４３ｂによって矢印Ｃ方向の回転を規制され、可動部４１ａの弾性力によって矢印Ｃ方向とは反対の方向の回転を規制される。   As shown in FIG. 10B, the bolt 32a is restricted from rotating in the direction of arrow C by the end 43b, and is restricted from rotating in the direction opposite to the direction of arrow C by the elastic force of the movable part 41a.

作業者は、バスバー３３をねじ山部３２１に挿入し、続いて、ナット３４をねじ山部３２１に挿入する。作業者は、所定の方向にナット３４を回転させ、ナット３４によってバスバー３３と接続部３１を固定する。   The operator inserts the bus bar 33 into the threaded portion 321, and subsequently inserts the nut 34 into the threaded portion 321. The operator rotates the nut 34 in a predetermined direction, and fixes the bus bar 33 and the connecting portion 31 with the nut 34.

このとき、図１１に示すように、基部３２０ａは、略十字形状を有しているので、接続部３１ａとの接点がより広く取れ、その結果、ナット３４による固定に基づいた接続部３１ａの座屈を防止することができる。   At this time, as shown in FIG. 11, since the base portion 320a has a substantially cross shape, a wider contact point with the connection portion 31a can be obtained. As a result, the seat of the connection portion 31a based on the fixation by the nut 34 is obtained. Bending can be prevented.

電池モジュール１の作製については、第１の実施の形態と同様に行われる。   The battery module 1 is manufactured in the same manner as in the first embodiment.

（効果）
（１）上記した第４の実施の形態における二次電池２によれば、基部３２０ａが、略十字形状を有しているので、ナット３４による固定に基づいた接続部３１ａの座屈を防止することができる。 (effect)
(1) According to the secondary battery 2 in the fourth embodiment described above, since the base portion 320a has a substantially cross shape, the buckling of the connection portion 31a based on the fixing by the nut 34 is prevented. be able to.

（２）上記した第４の実施の形態における二次電池２によれば、基部３２０ａが、略十字形状を有しているので、接続部３１ａとの接点をより広く取れるので、確実な電気的な接続を行うことができる。 (2) According to the secondary battery 2 in the above-described fourth embodiment, since the base portion 320a has a substantially cross shape, a wider contact point with the connection portion 31a can be obtained, so that reliable electrical Connection can be made.

（他の実施の形態について）
（１）上記した実施の形態において接続部３１、３１ａと、基部３２０、３２０ａとの間に介在する部材は存在しなかったが、座屈防止用の金属ワッシャー等を接続部３１、３１ａにインサート成形等によって設けても良い。 (About other embodiments)
(1) In the above-described embodiment, there is no member interposed between the connection portions 31 and 31a and the base portions 320 and 320a, but a metal washer or the like for preventing buckling is inserted into the connection portions 31 and 31a. You may provide by shaping | molding etc.

（２）上記した実施の形態において接続端子部としてねじ山部３２１を有するボルト３２、３２ａを用いたが、これに限定されず、バスバー３３を固定できる他の構成、例えば、バスバー３３を接続端子部の接続部に直接ボルトで固定する等の構成であっても良い。 (2) In the above-described embodiment, the bolts 32 and 32a having the threaded portion 321 are used as the connection terminal portion. The structure of fixing directly to the connection part of a part with a volt | bolt etc. may be sufficient.

なお、本発明は、上記した実施の形態に限定されず、本発明の技術思想を逸脱あるいは変更しない範囲内で種々の変形、及び組み合わせが可能である。   The present invention is not limited to the above-described embodiment, and various modifications and combinations can be made without departing from or changing the technical idea of the present invention.

本発明の第１の実施の形態に係る電池モジュールの斜視図である。It is a perspective view of the battery module which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係る二次電池の概略図である。It is the schematic of the secondary battery which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係る正電極端子の概略図である。It is the schematic of the positive electrode terminal which concerns on the 1st Embodiment of this invention. 本発明の第１の実施の形態に係るボルト固定部の上面図である。It is a top view of the bolt fixing | fixed part which concerns on the 1st Embodiment of this invention. （ａ）は、本発明の第１の実施の形態に係るボルト挿入時のボルト固定部の図３におけるＡ−Ａ線断面図であり、（ｂ）は、ボルトを所定の方向に回転させた断面図であり、（ｃ）は、ボルトの回転が終了したときの断面図である。(A) is the sectional view on the AA line in FIG. 3 of the bolt fixing | fixed part at the time of the bolt insertion which concerns on the 1st Embodiment of this invention, (b) rotated the volt | bolt in the predetermined | prescribed direction. It is sectional drawing, (c) is sectional drawing when rotation of a volt | bolt is complete | finished. 本発明の第１の実施の形態に係る図３のＢ−Ｂ線断面図である。FIG. 5 is a cross-sectional view taken along line BB in FIG. 3 according to the first embodiment of the present invention. （ａ）は、本発明の第２の実施の形態に係るボルト固定部の概略図であり、（ｂ）は、ボルトを回転させたときのボルト固定部の概略図である。(A) is the schematic of the bolt fixing | fixed part which concerns on the 2nd Embodiment of this invention, (b) is the schematic of the bolt fixing | fixed part when rotating a bolt. （ａ）は、本発明の第３の実施の形態に係るボルト固定部の概略図であり、（ｂ）は、ボルトを回転させたときのボルト固定部の概略図である。(A) is the schematic of the bolt fixing | fixed part which concerns on the 3rd Embodiment of this invention, (b) is the schematic of the bolt fixing | fixed part when rotating a bolt. 本発明の第４の実施の形態に係る正電極端子の概略図である。It is the schematic of the positive electrode terminal which concerns on the 4th Embodiment of this invention. （ａ）は、本発明の第４の実施の形態に係るボルト固定部の概略図であり、（ｂ）は、ボルトを回転させたときのボルト固定部の概略図である。(A) is the schematic of the bolt fixing | fixed part which concerns on the 4th Embodiment of this invention, (b) is the schematic of the bolt fixing | fixed part when rotating a bolt. 本発明の第４の実施の形態に係る接続部の挿入孔を裏から見た概略図である。It is the schematic which looked at the insertion hole of the connection part which concerns on the 4th Embodiment of this invention from the back.

符号の説明Explanation of symbols

１…電池モジュール、２…二次電池、３…正電極端子、４…プレート、５…負電極端、２０…本体、３０…正電極板、３１、３１ａ…接続部、３２、３２ａ…ボルト、３３…バスバー、３４…ナット、４０、４０ａ〜４０ｃ…ボルト固定部、４１、４１ａ〜４１ｂ…可動部、４２、４２ａ〜４２ｃ…開口、４３…端部、４３ａ〜４３ｂ…端部、４４、４４ａ〜４４ｃ…挿入孔、５０…負電極板、３１０…電極固定部、３１１、３１１ａ…ボルト挿入部、３１２…かしめ部、３１３、３１３ａ…挿入孔、３２０、３２０ａ…基部、３２１…ねじ山部、３２２…凸部、４００…電極挿入孔 DESCRIPTION OF SYMBOLS 1 ... Battery module, 2 ... Secondary battery, 3 ... Positive electrode terminal, 4 ... Plate, 5 ... Negative electrode end, 20 ... Main body, 30 ... Positive electrode plate, 31, 31a ... Connection part, 32, 32a ... Bolt, 33 ... Bus bar, 34 ... Nut, 40, 40a-40c ... Bolt fixing part, 41, 41a-41b ... Moving part, 42, 42a-42c ... Opening, 43 ... End, 43a-43b ... End, 44, 44a- 44c ... insertion hole, 50 ... negative electrode plate, 310 ... electrode fixing part, 311, 311a ... bolt insertion part, 312 ... caulking part, 313, 313a ... insertion hole, 320, 320a ... base part, 321 ... screw thread part, 322 ... convex part, 400 ... electrode insertion hole

Claims (10)

絶縁性部材によって形成され、二次電池本体に設けられた絶縁部と、
前記二次電池本体に収容される発電要素と電気的に接続される電極部と、
前記電極部と電気的に接続し、第１の開口を有する電極接続部と、
箱形状を有して前記絶縁部に設けられ、前記第１の開口に基づく第２の開口を有する固定部と、
基部、及び前記基部上に設けられた接続部を有し、前記基部が前記第１の開口を介して前記第２の開口に挿入され、前記基部が前記第２の開口の所定の部分に接触することで、所定の方向の回転を規制される接続端子部と、
を備えた二次電池の端子構造。 An insulating part formed of an insulating member and provided in the secondary battery body;
An electrode part electrically connected to a power generation element housed in the secondary battery body;
An electrode connecting portion electrically connected to the electrode portion and having a first opening;
A fixing portion having a box shape and provided in the insulating portion, and having a second opening based on the first opening;
A base and a connecting portion provided on the base; the base is inserted into the second opening through the first opening; and the base contacts a predetermined portion of the second opening By doing so, a connection terminal portion that is restricted from rotating in a predetermined direction,
The terminal structure of the secondary battery provided with. 前記固定部は、側面部に板形状となるように形成された可動部を有し、
前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、前記変位に基づく弾性力によって前記基部の前記所定の方向とは反対方向の回転を規制する請求項１に記載の二次電池の端子構造。 The fixed part has a movable part formed to have a plate shape on a side part,
The movable portion is displaced outwardly of the second opening by the rotation of the base portion in the predetermined direction, and the rotation of the base portion in a direction opposite to the predetermined direction is restricted by an elastic force based on the displacement. The terminal structure of the secondary battery according to claim 1. 前記固定部は、側面部に板形状となるように形成された可動部と、前記可動部と前記側面部との間に第３の開口を有し、
前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、
前記基部は、さらに前記所定の方向の回転によって前記第３の開口に嵌り、前記所定の方向、及び前記所定の方向の反対方向の回転を規制される請求項１に記載の二次電池の端子構造。 The fixed portion has a movable portion formed to have a plate shape on a side surface portion, and a third opening between the movable portion and the side surface portion,
The movable part is displaced outwardly of the second opening by the rotation of the base in the predetermined direction,
2. The secondary battery terminal according to claim 1, wherein the base is further fitted into the third opening by rotation in the predetermined direction and is restricted from rotating in the predetermined direction and in a direction opposite to the predetermined direction. Construction. 前記接続部は、雄ねじ部を有する請求項１に記載の二次電池の端子構造。   The terminal structure of the secondary battery according to claim 1, wherein the connection portion has a male screw portion. 前記基部は、矩形状を有する請求項１に記載の二次電池の端子構造。   The terminal structure of the secondary battery according to claim 1, wherein the base has a rectangular shape. 前記基部は、略十字形状を有する請求項１に記載の二次電池の端子構造。   The terminal structure of the secondary battery according to claim 1, wherein the base has a substantially cross shape. 絶縁性部材によって形成され、二次電池本体に設けられた絶縁部と、
前記二次電池本体に収容される発電要素と電気的に接続される電極部と、
前記電極部と電気的に接続し、第１の開口を有する電極接続部と、
箱形状を有して前記絶縁部に設けられ、前記第１の開口に基づく第２の開口を有する固定部と、
基部、及び前記基部上に設けられた接続部を有し、前記基部が前記第１の開口を介して前記第２の開口に挿入され、前記基部が前記第２の開口の所定の部分に接触することで、所定の方向の回転を規制される接続端子部と、
を有する端子構造を少なくとも１つ備えた二次電池。 An insulating part formed of an insulating member and provided in the secondary battery body;
An electrode part electrically connected to a power generation element housed in the secondary battery body;
An electrode connecting portion electrically connected to the electrode portion and having a first opening;
A fixing portion having a box shape and provided in the insulating portion, and having a second opening based on the first opening;
A base and a connecting portion provided on the base; the base is inserted into the second opening through the first opening; and the base contacts a predetermined portion of the second opening By doing so, a connection terminal portion that is restricted from rotating in a predetermined direction,
A secondary battery comprising at least one terminal structure having 前記固定部は、側面部に板形状となるように形成された可動部を有し、
前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、前記変位に基づく弾性力によって前記基部の前記所定の方向とは反対方向の回転を規制する請求項７に記載の二次電池。 The fixed part has a movable part formed to have a plate shape on a side part,
The movable portion is displaced outwardly of the second opening by the rotation of the base portion in the predetermined direction, and the rotation of the base portion in a direction opposite to the predetermined direction is restricted by an elastic force based on the displacement. The secondary battery according to claim 7. 前記固定部は、側面部に板形状となるように形成された可動部と、前記可動部と前記側面部との間に第３の開口を有し、
前記可動部は、前記基部の前記所定の方向の回転によって前記第２の開口の外方向に変位を行い、
前記基部は、さらに前記所定の方向の回転によって前記第３の開口に嵌り、前記所定の方向、及び前記所定の方向の反対方向の回転を規制される請求項７に記載の二次電池。 The fixed portion has a movable portion formed to have a plate shape on a side surface portion, and a third opening between the movable portion and the side surface portion,
The movable part is displaced outwardly of the second opening by the rotation of the base in the predetermined direction,
The secondary battery according to claim 7, wherein the base is further fitted into the third opening by the rotation in the predetermined direction, and the rotation in the predetermined direction and in the direction opposite to the predetermined direction is restricted. 絶縁性部材によって形成され、二次電池本体に設けられた絶縁部と、前記二次電池本体に収容される発電要素と電気的に接続される電極部と、前記電極部と電気的に接続し、第１の開口を有する電極接続部と、箱形状を有して前記絶縁部に設けられ、前記第１の開口に基づく第２の開口を有する固定部と、基部、及び前記基部上に設けられた接続部を有し、前記基部が前記第１の開口を介して前記第２の開口に挿入され、前記基部が前記第２の開口の所定の部分に接触することで、所定の方向の回転を規制される接続端子部と、を有する端子構造を少なくとも１つ備えた複数の二次電池と、
導電性部材によって形成され、所定の間隔で並べられた隣接する前記二次電池本体に設けられた前記接続端子部同士を電気的に接続する複数の導電板と、
を備えた二次電池モジュール。 An insulating part formed by an insulating member and provided in the secondary battery body, an electrode part electrically connected to the power generation element housed in the secondary battery body, and electrically connected to the electrode part An electrode connection portion having a first opening, a box-shaped fixing portion having a second opening based on the first opening, a base portion, and a base portion provided on the insulating portion. The base is inserted into the second opening through the first opening, and the base comes into contact with a predetermined portion of the second opening. A plurality of secondary batteries including at least one terminal structure having a connection terminal portion that is restricted in rotation;
A plurality of conductive plates that are formed by conductive members and electrically connect the connection terminal portions provided in the adjacent secondary battery bodies arranged at predetermined intervals;
Secondary battery module equipped with.
JP2008292297A 2008-11-14 2008-11-14 Terminal structure for secondary battery, secondary battery and secondary battery module Pending JP2010118304A (en)

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