JP2013178965A - Battery connection member and battery module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery connection member which can be prevented from being loosened from a terminal of a battery, and to provide a battery module.SOLUTION: There are provided a battery connection member (10) and a battery module (200). The battery connection member (10) connects terminals (210, 214) of batteries (202, 203) to each other and includes: terminal holding parts (12) for holding the terminals (210, 214); and fastening means (13) which is provided between the batteries (202, 203) in a state of being connected between the terminals (210, 214) and fastens the terminal holding parts (12) in a direction in which the terminal holding parts (12) hold the terminals (210, 214).

Description

本発明は、例えばリチウム二次電池同士の端子間を接続する電池接続部材及び電池モジュールに関する。   The present invention relates to a battery connecting member and a battery module that connect terminals of lithium secondary batteries, for example.

電池接続部材及び電池モジュールの一例が特許文献１に記載されている。
特許文献１の電池接続部材及び電池モジュールは、板状の本体と、本体の面内に厚み方向に貫通し、各端子に対応して設けられた接触部と、を備えている。
特許文献１の電池接続部材及び電池モジュールは、接触部の面内形状が、その周縁部を各端子の横断面形状の少なくとも一部に沿う形状に形成している。
これらの電池接続部材及び電池モジュールは、取り付けにあたり、接触部の内側に各端子が位置するように上から電池接続部材を設置し、締付ボルトをねじ孔に螺合させていく。
また、これらの電池接続部材及び電池モジュールは、締付ボルトの螺合により、スリットを小さくするように変形していき、接触面を各端子の外周面に強く押し付けて、電池接続部材が各端子に対して強固に密着する。 An example of a battery connecting member and a battery module is described in Patent Document 1.
The battery connection member and the battery module of Patent Document 1 include a plate-shaped main body and a contact portion that penetrates in the thickness direction in the surface of the main body and is provided corresponding to each terminal.
In the battery connection member and the battery module of Patent Document 1, the in-plane shape of the contact portion is formed such that the peripheral edge portion thereof conforms to at least a part of the cross-sectional shape of each terminal.
When attaching these battery connection members and battery modules, the battery connection members are installed from above so that the terminals are located inside the contact portions, and the fastening bolts are screwed into the screw holes.
In addition, these battery connection members and battery modules are deformed so as to reduce the slits by screwing the tightening bolts, and the contact surfaces are strongly pressed against the outer peripheral surfaces of the respective terminals so that the battery connection members are connected to the respective terminals. Firmly adheres to

特開２００９−２７７３９３号公報JP 2009-277393 A

一般的に、リチウム二次電池や燃料電池を各種用途に適用する際、それら電池の信頼性と安全性の確保が必要である。
それは、特に移動体への適用や移動用途によっては、単電池間を接続している金属製の電池接続部材が振動で緩む等の不具合を生ずることがあるからである。
そのため、振動等により電池接続部材が端子に対して緩まないようにするための対策が必要である。
しかし、特許文献１の電池接続部材及び電池モジュールは、締付ボルトの螺合位置を各端子の外側に配置しており、電池接続部材を緩め止める手段を有さないために、電池接続部材が各端子に対して緩むことがありうる。 Generally, when applying lithium secondary batteries and fuel cells to various applications, it is necessary to ensure the reliability and safety of the batteries.
This is because, particularly depending on the application to the moving body and the purpose of movement, there may be a problem that the metal battery connecting member connecting the single cells is loosened by vibration.
Therefore, it is necessary to take measures to prevent the battery connection member from loosening with respect to the terminal due to vibration or the like.
However, since the battery connection member and the battery module of Patent Document 1 are provided with screwing positions of the fastening bolts on the outside of each terminal and do not have means for loosening the battery connection member, There is a possibility of loosening for each terminal.

本発明は、前述した課題を解決するためになされたものであり、その目的は、電池の端子からの緩みを防止できる電池接続部材及び電池モジュールを提供することにある。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a battery connecting member and a battery module that can prevent loosening from a battery terminal.

本発明に係る電池接続部材は、電池同士の端子間を接続する電池接続部材であって、前記端子を挟持する端子挟持部と、前記端子間に接続された状態で前記電池同士の間に設けられ、前記端子挟持部を挟持する方向に締め付ける締付手段と、を備える。   The battery connection member according to the present invention is a battery connection member that connects between terminals of batteries, and is provided between the batteries in a state of being connected between the terminals and a terminal holding part that holds the terminals. And clamping means for clamping the terminal clamping portion in a clamping direction.

このような構成によれば、締付ボルトの螺合位置を各端子の外側に配置した場合と比べて、大きなトルクを作用できる締付手段を適用できる。
従って、電池の端子に確実に締結して端子からの緩みを防止できる。 According to such a configuration, it is possible to apply a tightening means that can apply a large torque compared to the case where the screwing position of the tightening bolt is arranged outside each terminal.
Therefore, it can be securely fastened to the terminal of the battery to prevent loosening from the terminal.

本発明に係る電池接続部材は、両端部に、前記端子挟持部を有する本体を備え、前記本体が、前記端子挟持部より厚みが大とされるとともに、前記締付手段が、前記本体に設けられた螺合緊締手段である。   The battery connecting member according to the present invention includes a main body having the terminal holding portion at both ends, the main body is thicker than the terminal holding portion, and the fastening means is provided on the main body. Screwed tightening means.

このような構成によれば、大きなボリュームの本体を有することにより、電池の端子間に大容量の通電回路を形成でき、本体の螺合緊締手段により端子挟持部を挟持する方向にねじ止めできる。   According to such a configuration, by having a main body with a large volume, a large-capacity energization circuit can be formed between the terminals of the battery, and it can be screwed in the direction in which the terminal clamping portion is clamped by the screw tightening means of the main body.

本発明に係る電池接続部材は、前記本体が、前記端子挟持部に有する端子固定孔に連通して変形する変形部を備えている。   In the battery connection member according to the present invention, the main body includes a deforming portion that is deformed in communication with a terminal fixing hole included in the terminal holding portion.

このような構成によれば、締付手段のねじ込みにより変形部が変形していき、端子挟持部の端子固定孔を電池の端子に面接触により電気的に接続できる。   According to such a configuration, the deforming portion is deformed by screwing of the tightening means, and the terminal fixing hole of the terminal holding portion can be electrically connected to the battery terminal by surface contact.

本発明に係る電池接続部材は、前記端子挟持部に、前記端子固定孔の広がりを規制するカバーを装着している。   In the battery connection member according to the present invention, a cover that restricts the expansion of the terminal fixing hole is attached to the terminal clamping portion.

このような構成によれば、カバーにより端子固定孔の広がりを規制できるので、端子からの緩みを防止できる。   According to such a structure, since the expansion of the terminal fixing hole can be regulated by the cover, loosening from the terminal can be prevented.

本発明に係る電池接続部材は、進退移動により前記端子挟持部に端子固定孔を形成する端子固定孔形成手段を備えている。   The battery connecting member according to the present invention includes terminal fixing hole forming means for forming a terminal fixing hole in the terminal clamping portion by moving forward and backward.

このような構成によれば、端子固定孔形成手段の移動により端子挟持部の端子固定孔に挿入した電池の端子を押圧保持できるので、端子からの緩みを防止できる。   According to such a configuration, since the terminal of the battery inserted into the terminal fixing hole of the terminal holding portion can be pressed and held by the movement of the terminal fixing hole forming means, loosening from the terminal can be prevented.

本発明に係る電池接続部材は、前記締付手段が、磁気吸着手段である。   In the battery connecting member according to the present invention, the fastening means is a magnetic adsorption means.

このような構成によれば、磁気吸着手段の励磁により生ずる磁力により、端子挟持部の端子固定孔に挿入した電池の端子を押圧保持できるので、端子からの緩みを防止できる。   According to such a configuration, the terminal of the battery inserted into the terminal fixing hole of the terminal clamping portion can be pressed and held by the magnetic force generated by the excitation of the magnetic attraction means, so that loosening from the terminal can be prevented.

本発明に係る電池モジュールは、電池接続部材を具備する。   The battery module according to the present invention includes a battery connection member.

このような構成によれば、電池の端子に確実に締結して端子からの緩みを防止できる電池接続部材により品質の向上を図ることができる。   According to such a configuration, the quality can be improved by the battery connection member that can be securely fastened to the terminal of the battery and prevented from loosening from the terminal.

本発明に係る電池接続部材及び電池モジュールによれば、電池の端子からの緩みを防止できるという効果を奏する。   According to the battery connecting member and the battery module according to the present invention, there is an effect that the loosening from the terminal of the battery can be prevented.

本発明に係る第１実施形態の電池モジュールの斜め上方から視た外観斜視図である。It is the external appearance perspective view seen from diagonally upward of the battery module of 1st Embodiment which concerns on this invention. 本発明に係る第１実施形態の電池接続部材の締め付け前の斜め上方から視た外観斜視図である。It is the external appearance perspective view seen from diagonally upward before the fastening of the battery connection member of 1st Embodiment which concerns on this invention. 本発明に係る第１実施形態の電池接続部材の締め付け後の斜め上方から視た外観斜視図である。It is the external appearance perspective view seen from diagonally upward after the fastening of the battery connection member of 1st Embodiment which concerns on this invention. 本発明に係る第１実施形態の電池接続部材の変形例の締め付け後の斜め上方から視た外観斜視図である。It is the external appearance perspective view seen from diagonally upward after the fastening of the modification of the battery connection member of 1st Embodiment which concerns on this invention. 本発明に係る第１実施形態の電池接続部材の他の変形例の斜め上方から視た外観斜視図である。It is the external appearance perspective view seen from diagonally upward of the other modification of the battery connection member of 1st Embodiment which concerns on this invention. 図５に示した電池接続部材の長手方向から視た要部縦断面図である。It is the principal part longitudinal cross-sectional view seen from the longitudinal direction of the battery connection member shown in FIG. 図５に示した電池接続部材の短手方向から視た要部縦断面図である。It is the principal part longitudinal cross-sectional view seen from the transversal direction of the battery connection member shown in FIG. 本発明に係る第２実施形態の電池接続部材の締め付け前の平面図である。It is a top view before the fastening of the battery connection member of 2nd Embodiment which concerns on this invention. 本発明に係る第２実施形態の電池接続部材の締め付け後の平面図である。It is a top view after clamping of the battery connection member of a 2nd embodiment concerning the present invention. 本発明とは異なる発明の第１例として示した電池接続部材の締め付け前の要部側面図である。It is a principal part side view before the fastening of the battery connection member shown as 1st example of the invention different from this invention. 図１０に示した電池接続部材の締め付け後の要部側面図である。It is a principal part side view after the battery connection member shown in FIG. 図１０に示した電池接続部材を装備する電池モジュールの回路構成図である。It is a circuit block diagram of the battery module equipped with the battery connection member shown in FIG. 図１０に示した電池接続部材を装備する電池モジュールの第１例の変形例の回路構成図である。It is a circuit block diagram of the modification of the 1st example of the battery module equipped with the battery connection member shown in FIG. 本発明とは異なる発明の第２例として示した電池接続部材の締め付け前の側面図である。It is a side view before clamping of the battery connection member shown as the 2nd example of the invention different from the present invention. 本発明とは異なる発明の第２例として示した電池接続部材の締め付け後の側面図である。It is a side view after clamping of the battery connection member shown as the 2nd example of the invention different from the present invention. 本発明とは異なる発明の第３例として示した電池接続部材の正面図である。It is a front view of the battery connection member shown as the 3rd example of the invention different from the present invention. 本発明とは異なる発明の第４例として示した電池接続部材の要部平面図である。It is a principal part top view of the battery connection member shown as the 4th example of the invention different from the present invention. 図１７に示した電池接続部材の長手方向から視た要部縦断面図である。It is the principal part longitudinal cross-sectional view seen from the longitudinal direction of the battery connection member shown in FIG. 本発明に係る第３実施形態の電池接続部材の平面図である。It is a top view of the battery connection member of 3rd Embodiment concerning this invention. 図１９に示した電池接続部材の側面図である。FIG. 20 is a side view of the battery connection member shown in FIG. 19. 図１９に示した電池接続部材の締め付け手段の一例の平面図である。FIG. 20 is a plan view of an example of a fastening means for the battery connection member shown in FIG. 19. 図１９に示した電池接続部材の締め付け手段の他例の平面図である。FIG. 20 is a plan view of another example of the fastening means for the battery connection member shown in FIG. 19. 図１９に示した電池接続部材の締め付け手段の他例の平面図である。FIG. 20 is a plan view of another example of the fastening means for the battery connection member shown in FIG. 19.

以下、本発明に係る複数の実施形態の電池接続部材及び電池モジュールについて図面を参照して説明する。
（第１実施形態）
図１に示すように、本発明に係る第１実施形態の電池接続部材１０を装備する電池モジュール２００は、４個のリチウム二次電池２０１，２０２，２０３，２０４を一列に収納するために上部が開口した略直方体形状のケース２０５を備えている。
ケース２０５は、上部に不図示の蓋を固定する。 Hereinafter, battery connection members and battery modules according to a plurality of embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
As shown in FIG. 1, a battery module 200 equipped with the battery connection member 10 of the first embodiment according to the present invention is an upper part for storing four lithium secondary batteries 201, 202, 203, 204 in a row. Is provided with a case 205 having a substantially rectangular parallelepiped shape.
The case 205 has a lid (not shown) fixed on the top.

リチウム二次電池２０１は、電池容器２０６を有し、正極端子２０７および負極端子２０８を有する。リチウム二次電池２０２は、電池容器２０９を有し、正極端子２１０および負極端子２１１を有する。
リチウム二次電池２０３は、電池容器２１２を有し、正極端子２１３および負極端子２１４を有する。リチウム二次電池２０４は、電池容器２１５を有し、正極端子２１６および負極端子２１７を有する。 The lithium secondary battery 201 includes a battery container 206 and includes a positive electrode terminal 207 and a negative electrode terminal 208. The lithium secondary battery 202 includes a battery container 209 and includes a positive electrode terminal 210 and a negative electrode terminal 211.
The lithium secondary battery 203 includes a battery container 212 and includes a positive electrode terminal 213 and a negative electrode terminal 214. The lithium secondary battery 204 includes a battery container 215 and includes a positive electrode terminal 216 and a negative electrode terminal 217.

各電池容器２０６，２０９，２１２，２１５および蓋は、例えば、ステンレス等の鋼材やアルミ系材料等を用いて形成されている。
各電池容器２０６，２０９，２１２，２１５の内面は、非水電解液と直接接していても構わないが、変性ポリオレフィン等の絶縁物で被覆されたものを用いることもできる。
各電池容器２０６，２０９，２１２，２１５の内部には、リチウムイオンを含む非水電解液と、正極集電体と、負極集電体とを収納している。 Each battery container 206, 209, 212, 215 and the lid are formed using, for example, a steel material such as stainless steel, an aluminum-based material, or the like.
The inner surfaces of the battery containers 206, 209, 212, and 215 may be in direct contact with the non-aqueous electrolyte, but those coated with an insulator such as a modified polyolefin can also be used.
Each battery container 206, 209, 212, 215 contains a non-aqueous electrolyte containing lithium ions, a positive electrode current collector, and a negative electrode current collector.

正極端子２０７，２１０，２１３，２１６は、例えば、アルミニウム材料で形成されており、それらの外側端部の表面には、接触抵抗を下げるために、例えば、ニッケルめっきを施すようにしてもよい。
負極端子２０８，２１１、２１４，２１７は、例えば、銅材料で形成されている。 The positive terminals 207, 210, 213, and 216 are made of, for example, an aluminum material. For example, nickel plating may be applied to the surfaces of the outer end portions in order to reduce the contact resistance.
The negative terminals 208, 211, 214, and 217 are made of, for example, a copper material.

電池モジュール２００は、リチウム二次電池２０１の正極端子２０７とリチウム二次電池２０２の負極端子２１１とを直列に接続し、リチウム二次電池２０２の正極端子２１０とリチウム二次電池２０３の負極端子２１４とを直列に接続する。
電池モジュール２００は、リチウム二次電池２０３の正極端子２１３とリチウム二次電池２０４の負極端子２１７とを直列に接続する。
これにより、電池モジュール２００は、リチウム二次電池２０１の負極端子２０８と、リチウム二次電池２０４の正極端子２１６とを外部接続端子として、４個のリチウム二次電池２０１，２０２，２０３，２０４の直列回路を形成している。 The battery module 200 connects the positive electrode terminal 207 of the lithium secondary battery 201 and the negative electrode terminal 211 of the lithium secondary battery 202 in series, and the positive electrode terminal 210 of the lithium secondary battery 202 and the negative electrode terminal 214 of the lithium secondary battery 203. Are connected in series.
The battery module 200 connects the positive electrode terminal 213 of the lithium secondary battery 203 and the negative electrode terminal 217 of the lithium secondary battery 204 in series.
Thereby, the battery module 200 uses the negative electrode terminal 208 of the lithium secondary battery 201 and the positive electrode terminal 216 of the lithium secondary battery 204 as external connection terminals, so that the four lithium secondary batteries 201, 202, 203, 204 can be connected. A series circuit is formed.

そして、電池モジュール２００は、各リチウム二次電池２０１，２０１，２０３，２０４の接続にバスバーである３個の電池接続部材１０を適用する。
なお、３個の電池接続部材１０は、いずれも同一構造であるために、以下の説明では、リチウム二次電池２０２の正極端子２１０とリチウム二次電池２０３の負極端子２１４とを電気的に接続する電池接続部材１０のみを図示することとする。 And the battery module 200 applies the three battery connection members 10 which are a bus bar to the connection of each lithium secondary battery 201,201,203,204.
In addition, since all the three battery connection members 10 have the same structure, in the following description, the positive electrode terminal 210 of the lithium secondary battery 202 and the negative electrode terminal 214 of the lithium secondary battery 203 are electrically connected. Only the battery connection member 10 to be performed is illustrated.

図２に示すように、電池接続部材１０は、導電部材である、例えば銅材料を用いて成形されており、本体１１と、端子挟持部１２と、締付手段であって螺合緊締手段の一部を構成するねじ１３と、から構成され、各リチウム二次電池２０２，２０３同士の間に組付けられる。
本体１１は、ねじ１３をねじ込む以前に、それぞれの内側に空間状の締め込み代となるスリット状の空隙部１４を形成した変形部１５を有する。
変形部１５は、端子挟持部１２側の両端部に、締付手段であって螺合緊締手段の他の一部を構成する一対のねじ挿通孔１６Ａと、同じく締付手段であって螺合緊締手段の残りの一部を構成する一対のねじ込み孔１６Ｂと、をそれぞれ有する。
端子挟持部１２は、各端子２１０，２１４の外径寸法よりも大きい内径寸法を有してＣ字形状に形成した端子固定孔１７を有し、これら端子固定孔１７は、本体１１の空隙部１４に連通接続している。 As shown in FIG. 2, the battery connection member 10 is formed using a conductive material, for example, a copper material, and includes a main body 11, a terminal holding portion 12, a tightening unit, and a screwing tightening unit. And a screw 13 constituting a part, and assembled between the lithium secondary batteries 202 and 203.
The main body 11 has a deformed portion 15 in which a slit-like gap portion 14 serving as a space-like tightening allowance is formed inside each screw screw 13 before being screwed.
The deformable portion 15 has a pair of screw insertion holes 16A constituting the other part of the screw tightening means at both ends on the terminal clamping portion 12 side, and is also a tightening means screwed together. And a pair of screw holes 16B constituting the remaining part of the tightening means.
The terminal clamping part 12 has a terminal fixing hole 17 having an inner diameter dimension larger than the outer diameter dimension of each of the terminals 210 and 214 and formed in a C-shape. 14 is connected in communication.

図３に示すように、電池接続部材１０は、取り付けに当たり、端子挟持部１２の一方の端子固定孔１７をリチウム二次電池２０２の正極端子２１０に挿通し、端子挟持部１２の他方の端子固定孔１７をリチウム二次電池２０３の負極端子２１４に挿通する。
このとき、電池接続部材１０の端子固定孔１７は、各端子２１０，２１４に挿通しただけであり、何らの電気的な接続も行わない。 As shown in FIG. 3, when the battery connecting member 10 is attached, the one terminal fixing hole 17 of the terminal holding part 12 is inserted into the positive terminal 210 of the lithium secondary battery 202 to fix the other terminal of the terminal holding part 12. The hole 17 is inserted into the negative electrode terminal 214 of the lithium secondary battery 203.
At this time, the terminal fixing hole 17 of the battery connecting member 10 is only inserted through the terminals 210 and 214 and does not perform any electrical connection.

次に、変形部１５の各ねじ挿通孔１６Ａにねじ１３を挿入して、各ねじ込み孔１６Ｂにねじ１３をねじ込んでいく。
ねじ１３のねじ込みが進むにつれて、変形部１５の空隙部１４が小さく変形していき、同時に、端子挟持部１２の端子固定孔１７が内径寸法を小さくするように変形する。
これにより、端子挟持部１２の端子固定孔１７が各リチウム二次電池２０２，２０３の各端子２１０，２１４に面接触により電気的に接続する。 Next, the screw 13 is inserted into each screw insertion hole 16A of the deformable portion 15, and the screw 13 is screwed into each screw insertion hole 16B.
As the screw 13 is screwed in, the gap portion 14 of the deformable portion 15 is deformed to be small, and at the same time, the terminal fixing hole 17 of the terminal clamping portion 12 is deformed to reduce the inner diameter dimension.
Thereby, the terminal fixing hole 17 of the terminal clamping part 12 is electrically connected to each terminal 210, 214 of each lithium secondary battery 202, 203 by surface contact.

このとき、電池接続部材１０は、リチウム二次電池２０２とリチウム二次電池２０３との間に形成する空間部(図１参照)２１８に本体１１を配置する。
そのため、電池接続部材１０は、本体１１の厚み寸法Ｔ１を、端子挟持部１２の厚み寸法Ｔ２よりも大きくして大きなボリュームにできる。
従って、締付ボルトの螺合位置を各端子の外側に配置した場合と比べて、大きなトルクを作用できるねじ１３を適用できるので、電池接続部材１０を各端子２１０，２１４に確実に締結できる。
また、電池接続部材１０は、大きなボリュームの本体１１により、各端子２１０，２１４間に大容量の通電回路を形成できる。 At this time, the battery connection member 10 arranges the main body 11 in a space portion (see FIG. 1) 218 formed between the lithium secondary battery 202 and the lithium secondary battery 203.
For this reason, the battery connecting member 10 can have a larger volume by making the thickness dimension T1 of the main body 11 larger than the thickness dimension T2 of the terminal clamping portion 12.
Accordingly, the screw 13 capable of applying a large torque can be applied as compared with the case where the screwing position of the tightening bolt is arranged outside the respective terminals, so that the battery connecting member 10 can be securely fastened to the terminals 210 and 214.
Further, the battery connection member 10 can form a large-capacity energization circuit between the terminals 210 and 214 by the main body 11 having a large volume.

以上、説明したように、本発明の第１実施形態の電池接続部材１０によれば、締付ボルトの螺合位置を各端子の外側に配置した場合と比べて、大きなトルクを作用できるねじ１３を適用できる。
従って、電池接続部材１０によれば、各端子２１０，２１４からの緩みを防止でき、各端子２１０，２１４に確実に締結できる。 As described above, according to the battery connecting member 10 of the first embodiment of the present invention, the screw 13 capable of applying a large torque compared to the case where the screwing position of the tightening bolt is arranged outside each terminal. Can be applied.
Therefore, according to the battery connecting member 10, loosening from the terminals 210 and 214 can be prevented and the terminals 210 and 214 can be securely fastened.

また、電池接続部材１０によれば、大きなボリュームの本体１１により、各端子２１０，２１４間に大容量の通電回路を形成でき、本体１１においてねじ１３をねじ挿通孔１６Ａからねじ込み孔１６Ｂにねじ込むことにより端子挟持部１２を挟持する方向にねじ止めできる。   Further, according to the battery connection member 10, a large-capacity main body 11 can form a large-capacity energization circuit between the terminals 210 and 214, and the screw 13 is screwed into the screw hole 16B from the screw insertion hole 16A in the main body 11. Thus, the terminal clamping portion 12 can be screwed in the clamping direction.

そして、電池モジュール２００によれば、端子２１０，２１４に確実に締結して端子２１０，２１４からの緩みを防止できる電池接続部材１０により品質の向上を図ることができる。   And according to the battery module 200, the quality can be improved by the battery connecting member 10 that can be securely fastened to the terminals 210 and 214 to prevent loosening from the terminals 210 and 214.

次に、第１実施形態の電池接続部材の変形例について説明する。
図４に示すように、本変形例の電池接続部材２０は、本体２１からＪ字形状に突出した端子挟持部２２を有し、端子挟持部２２と本体２１との間に締め込み代となる空隙部２３を形成している。
電池接続部材２０は、本体２１に、一対のねじ挿通孔１６Ａと、一対のねじ込み孔１６Ｂと、をそれぞれ有する。
端子挟持部２２は、ねじ挿通孔１６Ａにねじ１３を挿入して、ねじ込み孔１６Ｂにねじ１３をねじ込んでいくことにより、空隙部２３が小さく変形していき、同時に、端子固定孔１７が内径寸法を小さくするように変形する。
これにより、端子挟持部２２の端子固定孔１７が各リチウム二次電池２０２，２０３の各端子２１０，２１４に面接触により電気的に接続する。 Next, a modification of the battery connection member of the first embodiment will be described.
As shown in FIG. 4, the battery connection member 20 of the present modification has a terminal clamping portion 22 that protrudes in a J shape from the main body 21, and serves as a tightening allowance between the terminal clamping portion 22 and the main body 21. A void portion 23 is formed.
The battery connection member 20 has a pair of screw insertion holes 16A and a pair of screw insertion holes 16B in the main body 21, respectively.
In the terminal clamping portion 22, by inserting the screw 13 into the screw insertion hole 16A and screwing the screw 13 into the screwing hole 16B, the gap portion 23 is deformed to a small size, and at the same time, the terminal fixing hole 17 has an inner diameter dimension. It is deformed to make it smaller.
Thereby, the terminal fixing hole 17 of the terminal clamping part 22 is electrically connected to each terminal 210,214 of each lithium secondary battery 202,203 by surface contact.

本変形例の電池接続部材２０によれば、ねじ挿通孔１６Ａを通じたねじ込み孔１６Ｂへのねじ１３のねじ込みに伴い、Ｊ字形状に突出した端子挟持部２２が変形して、各リチウム二次電池２０２，２０３の各端子２１０，２１４に電気的に接続する。
従って、電池接続部材２０によれば、高い剛性を有する本体２１を得ることができ、各端子２１０，２１４に強固に固定できる。 According to the battery connecting member 20 of this modification, the terminal holding portion 22 protruding in a J shape is deformed as the screw 13 is screwed into the screw hole 16B through the screw insertion hole 16A, and each lithium secondary battery is deformed. Electrically connected to terminals 210 and 214 of 202 and 203.
Therefore, according to the battery connection member 20, the main body 21 having high rigidity can be obtained and can be firmly fixed to the terminals 210 and 214.

次に、第１実施形態の電池接続部材の他の変形例について説明する。
図５に示すように、本変形例の電池接続部材３０は、本体３１の端部に端子挟持部３２を有し、端子挟持部３２に端子固定孔１７の広がりを規制するためのカバー３３を取り付けている。
図６に示すように、カバー３３は、天板３４の端子固定孔１７に対応した位置に端子孔３５を有し、天板３４の長手方向の端部に、下方に向けて垂下した端板３６を接続している。
図７に示すように、カバー３３は、天板３４の短手方向の両端部に、下方に向けて垂下した一対の挟持部押え板３７を接続している。 Next, another modification of the battery connection member of the first embodiment will be described.
As shown in FIG. 5, the battery connection member 30 of this modification has a terminal clamping portion 32 at the end of the main body 31, and a cover 33 for restricting the expansion of the terminal fixing hole 17 in the terminal clamping portion 32. It is attached.
As shown in FIG. 6, the cover 33 has a terminal hole 35 at a position corresponding to the terminal fixing hole 17 of the top plate 34, and an end plate that hangs downward at the longitudinal end of the top plate 34. 36 is connected.
As shown in FIG. 7, the cover 33 is connected to a pair of sandwiching portion pressing plates 37 that hang downward from both ends of the top plate 34 in the short direction.

電池接続部材３０は、端子挟持部２２の端子固定孔１７が各リチウム二次電池２０２，２０３の各端子２１０，２１４に電気的に接続した後に、カバー３３を端子挟持部３２に被着する。
そのため、カバー３３の挟持部押え板３７により端子挟持部２２の端子固定孔１７の広がりを阻止することにより、リチウム二次電池２０２，２０３の各端子２１０，２１４に対する緩みを抑制できる。 The battery connecting member 30 attaches the cover 33 to the terminal clamping part 32 after the terminal fixing hole 17 of the terminal clamping part 22 is electrically connected to the terminals 210 and 214 of the lithium secondary batteries 202 and 203.
Therefore, by preventing the terminal fixing hole 17 of the terminal holding part 22 from spreading by the holding part pressing plate 37 of the cover 33, loosening of the lithium secondary batteries 202 and 203 with respect to the terminals 210 and 214 can be suppressed.

本変形例の電池接続部材３０によれば、カバー３３の挟持部押え板３７により端子挟持部２２の端子固定孔１７の広がりを阻止する。
従って、電池接続部材３０によれば、各リチウム二次電池２０２，２０３の各端子２１０，２１４に対する緩みを抑制できる。 According to the battery connecting member 30 of the present modification, the terminal fixing hole 17 of the terminal clamping part 22 is prevented from spreading by the clamping part pressing plate 37 of the cover 33.
Therefore, according to the battery connection member 30, the looseness with respect to each terminal 210,214 of each lithium secondary battery 202,203 can be suppressed.

（第２実施形態）
次に、本発明に係る第２実施形態の電池接続部材について説明する。
なお、以下の各実施形態において、前述した第１実施形態と重複する構成要素や機能的に同様な構成要素については、図中に同一符号あるいは相当符号を付することによって説明を簡略化あるいは省略する。 (Second Embodiment)
Next, the battery connection member of 2nd Embodiment which concerns on this invention is demonstrated.
In the following embodiments, components that are the same as those in the first embodiment described above or components that are functionally similar are denoted by the same or corresponding reference numerals in the drawings, and the description thereof is simplified or omitted. To do.

図８に示すように、本発明に係る第２実施形態の電池接続部材４０は、本体４１の両端部に端子挟持部４２を接続しており、端子挟持部４２が、コ字形状に形成した端子固定孔４３を有する。
電池接続部材４０は、端子固定孔４３に対して進退移動することにより、端子固定孔４３のコ字形状と協働して四角形の端子固定孔形状を形成する端子固定孔形成手段の一方を構成するとともに締付手段であって螺合緊締手段の一部を構成する一対のロッド４４を備えている。
電池接続部材４０は、ロッド４４を進退移動するものであって端子固定孔形成手段の他方を構成するとともに締付手段であって螺合緊締手段の他の一部を構成するナット部材４５を備えている。ロッド４４とナット部材４５とはボールねじ機構など回転を進退移動に変換する機構を構成する。 As shown in FIG. 8, the battery connection member 40 of 2nd Embodiment which concerns on this invention has connected the terminal clamping part 42 to the both ends of the main body 41, and the terminal clamping part 42 was formed in the U shape. A terminal fixing hole 43 is provided.
The battery connecting member 40 constitutes one of terminal fixing hole forming means that forms a rectangular terminal fixing hole shape in cooperation with the U shape of the terminal fixing hole 43 by moving forward and backward with respect to the terminal fixing hole 43. In addition, a pair of rods 44 constituting a part of the tightening means and a part of the screw tightening means are provided.
The battery connecting member 40 includes a nut member 45 that moves the rod 44 forward and backward, constitutes the other of the terminal fixing hole forming means, and is a fastening means that constitutes another part of the screw tightening means. ing. The rod 44 and the nut member 45 constitute a mechanism that converts rotation into forward and backward movement, such as a ball screw mechanism.

図９に示すように、電池接続部材４０は、取り付けにあたり、各端子固定孔４３をリチウム二次電池２０２，２０３の矩形の各端子２１０，２１４に挿通し、ナット部材４５をねじ込んでいく。
ナット部材４５のねじ込みに伴い、ロッド４４がそれぞれ離れる方向に進行していくために、端子挟持部４２のロッド４４が各リチウム二次電池２０２，２０３の各端子２１０，２１４に面接触により電気的に接続することになる。
なお、端子固定孔４３の形状およびロッド４４の先端部の形状は、リチウム二次電池２０２，２０３の各端子２１０，２１４に対応したものであれば、図示した四角形に代えて、円弧形状であってもよい。 As shown in FIG. 9, when attaching the battery connection member 40, the terminal fixing holes 43 are inserted into the rectangular terminals 210 and 214 of the lithium secondary batteries 202 and 203, and the nut members 45 are screwed in.
As the nut member 45 is screwed, the rod 44 advances in the direction away from each other, so that the rod 44 of the terminal clamping portion 42 is electrically connected to the terminals 210 and 214 of the lithium secondary batteries 202 and 203 by surface contact. Will be connected to.
Note that the shape of the terminal fixing hole 43 and the shape of the tip of the rod 44 are arc shapes instead of the illustrated rectangles as long as they correspond to the terminals 210 and 214 of the lithium secondary batteries 202 and 203, respectively. May be.

第２実施形態の電池接続部材４０によれば、ナット部材４５のねじ込みに伴い、ロッド４４を進行して、ロッド４４が各リチウム二次電池２０２，２０３の各端子２１０，２１４に面接触で押圧接続できる。
従って、電池接続部材４０によれば、リチウム二次電池２０２，２０３の各端子２１０，２１４に対する緩みを抑制できる。 According to the battery connection member 40 of the second embodiment, as the nut member 45 is screwed, the rod 44 advances, and the rod 44 presses the terminals 210 and 214 of the lithium secondary batteries 202 and 203 in surface contact. Can connect.
Therefore, according to the battery connection member 40, the looseness with respect to the terminals 210 and 214 of the lithium secondary batteries 202 and 203 can be suppressed.

次に、本発明とは異なる発明の第１例としての電池接続部材及び電池モジュールについて説明する。
図１０に示すように、第１例としての電池接続部材５０は、端子固定孔１７を磁気的に閉成する構造を有する。
電池接続部材５０は、蝶番部材５２を介して受側挟持部５３に対して開閉し、締付手段であって磁気吸着手段の一方を構成し、磁性材料からなる被吸着部５４を有する端子挟持部５１を備えている。 Next, a battery connecting member and a battery module as a first example of an invention different from the present invention will be described.
As shown in FIG. 10, the battery connection member 50 as the first example has a structure in which the terminal fixing hole 17 is magnetically closed.
The battery connecting member 50 opens and closes with respect to the receiving side holding part 53 via a hinge member 52, and is a clamping means that constitutes one of the magnetic attraction means and holds the terminal having an attracted part 54 made of a magnetic material. A unit 51 is provided.

図１１に示すように、受側挟持部５３は、その先端部に、締付手段であって磁気吸着手段の他方を構成し、通電により磁力を発生する電磁石からなる吸着部５５を設けている。
受側挟持部５３は、通電により吸着部５５が励磁することにより、被吸着部５４を磁気的に吸着して端子固定孔１７を閉成する。
これに反して、受側挟持部５３は、吸着部５５への通電を遮断すると、被吸着部５４を磁気的に吸着しなくなって端子固定孔１７を開成する。 As shown in FIG. 11, the receiving-side clamping portion 53 is provided with an adsorption portion 55 formed of an electromagnet that generates a magnetic force when energized, constituting the other of the magnetic attraction means, which is a fastening means, at the distal end portion thereof. .
The receiving-side clamping portion 53 closes the terminal fixing hole 17 by magnetically attracting the attracted portion 54 when the attracting portion 55 is excited by energization.
On the other hand, when the energization to the attracting portion 55 is interrupted, the receiving side clamping portion 53 does not attract the attracted portion 54 magnetically and opens the terminal fixing hole 17.

次に、第１例としての電池モジュール３００について説明する。
図１２に示すように、電池モジュール３００は、電磁石制御回路３０１と、モータ等の電力負荷３０２に接続したメインスイッチ３０３と、を備えている。
電磁石制御回路３０１は、Ａ／Ｄコンバータ３０４と、コントロールユニット３０５と、任意の二次電池であり、コントロールユニット３０５に給電する回路電源３０６と、リレースイッチ３０７と、を備えている。 Next, a battery module 300 as a first example will be described.
As shown in FIG. 12, the battery module 300 includes an electromagnet control circuit 301 and a main switch 303 connected to a power load 302 such as a motor.
The electromagnet control circuit 301 is an A / D converter 304, a control unit 305, an arbitrary secondary battery, and includes a circuit power source 306 that supplies power to the control unit 305, and a relay switch 307.

メインスイッチ３０３は、可動接点３０８を電力負荷３０２に接続し、メインスイッチ３０３に連動する内蔵スイッチ３０９を通じて常開固定接点３１０を一方のリチウム二次電池３１１の正極端子３１２に接続している。
Ａ／Ｄコンバータ３０４は、一方のリチウム二次電池３１１の負極端子３１３と、他方のリチウム二次電池３１４の正極端子３１５と、コントロールユニット３０５と、に接続している。 The main switch 303 connects the movable contact 308 to the power load 302, and connects the normally open fixed contact 310 to the positive terminal 312 of one lithium secondary battery 311 through a built-in switch 309 interlocking with the main switch 303.
The A / D converter 304 is connected to the negative terminal 313 of one lithium secondary battery 311, the positive terminal 315 of the other lithium secondary battery 314, and the control unit 305.

他方のリチウム二次電池３１４は、メインスイッチ３０３に連動する内蔵スイッチ３１６を有し、負極端子３１７を接地している。
コントロールユニット３０５は、Ａ／Ｄコンバータ３０４と、電池接続部材５０の吸着部５５の正極端子５６と、回路電源３０６と、に接続している。
リレースイッチ３０７は、抵抗３１８が他方のリチウム二次電池３１４の正極端子３１５と、ダイオード３１９を並列に接続して他端を接地した励磁コイル３２０とに接続している。
リレースイッチ３０７は、可動接点３２１を電池接続部材５０の吸着部５５の負極端子５７に接続し、常開固定接点３２２を回路電源３０６に接続している。 The other lithium secondary battery 314 has a built-in switch 316 that operates in conjunction with the main switch 303, and the negative terminal 317 is grounded.
The control unit 305 is connected to the A / D converter 304, the positive terminal 56 of the suction portion 55 of the battery connection member 50, and the circuit power source 306.
In the relay switch 307, the resistor 318 is connected to the positive terminal 315 of the other lithium secondary battery 314 and the exciting coil 320 in which the diode 319 is connected in parallel and the other end is grounded.
The relay switch 307 connects the movable contact 321 to the negative terminal 57 of the suction portion 55 of the battery connection member 50 and connects the normally open fixed contact 322 to the circuit power supply 306.

電磁石制御回路３０１は、メインスイッチ３０３がオンする通常状態において、可動接点３０８が常開固定接点３１０に接続し、オン状態にある内蔵スイッチ３０９，３１６を通じて電流を供給する。
これにより、Ａ／Ｄコンバータ３０４に所定の電位を与えることにより、コントロールユニット３０５から吸着部５５の正極端子５６に電流を供給する。
このとき、リレースイッチ３０７の励磁コイル３２０に通電することにより、可動接点３２１が常開固定接点３２２に接続して吸着部５５の負極端子５７に接地回路を形成する。
そのため、電池接続部材５０の受側挟持部５３が被吸着部５４を磁気的に吸着して端子固定孔１７を閉成する。 In the normal state in which the main switch 303 is turned on, the electromagnet control circuit 301 connects the movable contact 308 to the normally open fixed contact 310 and supplies current through the built-in switches 309 and 316 that are in the on state.
Thus, a current is supplied from the control unit 305 to the positive terminal 56 of the suction portion 55 by applying a predetermined potential to the A / D converter 304.
At this time, by energizing the exciting coil 320 of the relay switch 307, the movable contact 321 is connected to the normally open fixed contact 322 to form a ground circuit at the negative terminal 57 of the suction portion 55.
Therefore, the receiving side clamping portion 53 of the battery connecting member 50 magnetically attracts the attracted portion 54 and closes the terminal fixing hole 17.

電磁石制御回路３０１は、メインスイッチ３０３がオフした際に、可動接点３０８が常開固定接点３１０から遮断するために、Ａ／Ｄコンバータ３０４への電流供給が遮断され、コントロールユニット３０５から吸着部５５の正極端子５６への電流供給が遮断する。
このとき、リレースイッチ３０７の励磁コイル３２０への通電も遮断することにより、可動接点３２１が常開固定接点３２２から遮断する。
そのため、電池接続部材５０の被吸着部５４が受側挟持部５３から離間して端子固定孔１７を開成する。 When the main switch 303 is turned off, the electromagnet control circuit 301 shuts off the current supply to the A / D converter 304 because the movable contact 308 is cut off from the normally open fixed contact 310, and the control unit 305 removes the suction unit 55. Current supply to the positive terminal 56 is cut off.
At this time, the energization of the relay switch 307 to the exciting coil 320 is also cut off, so that the movable contact 321 is cut off from the normally open fixed contact 322.
Therefore, the attracted portion 54 of the battery connection member 50 is separated from the receiving side clamping portion 53 to open the terminal fixing hole 17.

電池接続部材５０によれば、通電により吸着部５５が励磁することにより受側挟持部５３が被吸着部５４を磁気的に吸着して端子固定孔１７を閉成し、吸着部５５への通電を遮断することにより端子固定孔１７を開成する。
従って、電池接続部材５０によれば、端子固定孔１７の開閉を電気的に行うことができ、端子固定孔１７の閉成時に、端子固定孔１７の緩みを確実に防止できる。 According to the battery connecting member 50, when the attracting portion 55 is excited by energization, the receiving side clamping portion 53 magnetically attracts the attracted portion 54 to close the terminal fixing hole 17, and energizes the attracting portion 55. The terminal fixing hole 17 is opened by shutting off.
Therefore, according to the battery connection member 50, the terminal fixing hole 17 can be electrically opened and closed, and the terminal fixing hole 17 can be reliably prevented from loosening when the terminal fixing hole 17 is closed.

そして、電池モジュール３００によれば、各端子３１３，３１５に確実に締結して各端子３１３，３１５からの緩みを防止できる電池接続部材５０により品質の向上を図ることができる。   According to the battery module 300, the quality can be improved by the battery connecting member 50 that can be securely fastened to the terminals 313 and 315 and can be prevented from loosening from the terminals 313 and 315.

次に、第１例の変形例である電池モジュールについて説明する。
図１３に示すように、第１例の変形例としての電池モジュール４００は、直列に接続されたリチウム二次電池４５０およびリチウム二次電池４６０と、同じく直列に接続されたリチウム二次電池４７０およびリチウム二次電池４８０と、を並列に接続している。
リチウム二次電池４５０は、内蔵スイッチ４５１を有し、正極端子４５２および負極端子４５３を有する。リチウム二次電池４６０は、内蔵スイッチ４６１を有し、正極端子４６２および負極端子４６３を有する。
リチウム二次電池４７０は、内蔵スイッチ４７１を有し、正極端子４７２および負極端子４７３を有する。リチウム二次電池４８０は、内蔵スイッチ４８１を有し、正極端子４８２および負極端子４８３を有する。
電池モジュール４００は、並列の一対の電磁石制御回路４０１を備えており、負荷スイッチ５０４と、コントロールユニット５０５と、回路電源５０６と、リレースイッチ５０７とを有する負荷スイッチ５０１を備えている。
リレースイッチ５０７は、抵抗５１８と、励磁コイル５２０と、可動接点５２１と、常開固定接点５２２と、を有する。
電池モジュール４００は、モータ等の電力負荷４０２に接続したメインスイッチ４０３を備えている。 Next, a battery module that is a modification of the first example will be described.
As shown in FIG. 13, a battery module 400 as a modification of the first example includes a lithium secondary battery 450 and a lithium secondary battery 460 connected in series, a lithium secondary battery 470 connected in series, and The lithium secondary battery 480 is connected in parallel.
The lithium secondary battery 450 has a built-in switch 451 and has a positive electrode terminal 452 and a negative electrode terminal 453. The lithium secondary battery 460 includes a built-in switch 461 and includes a positive electrode terminal 462 and a negative electrode terminal 463.
The lithium secondary battery 470 includes a built-in switch 471 and includes a positive electrode terminal 472 and a negative electrode terminal 473. The lithium secondary battery 480 includes a built-in switch 481 and includes a positive electrode terminal 482 and a negative electrode terminal 483.
The battery module 400 includes a pair of electromagnet control circuits 401 in parallel, and includes a load switch 501 having a load switch 504, a control unit 505, a circuit power source 506, and a relay switch 507.
The relay switch 507 includes a resistor 518, an excitation coil 520, a movable contact 521, and a normally open fixed contact 522.
The battery module 400 includes a main switch 403 connected to a power load 402 such as a motor.

各電磁石制御回路４０１は、メインスイッチ４０３がオンする通常状態において、可動接点４０８が常開固定接点４１０に接続し、オン状態にある内蔵スイッチ４５１，４６１，４７１，４８１を通じて電流を供給する。
これにより、各Ａ／Ｄコンバータ４０４に所定の電位を与えることにより、コントロールユニット４０５から吸着部５５の正極端子５６に電流を供給する。
このとき、リレースイッチ４０７の励磁コイル４２０に通電することにより、可動接点４２１が常開固定接点４２２に接続して吸着部５５の負極端子５７に接地回路を形成する。
そのため、電池接続部材５０の受側挟持部５３が被吸着部５４を磁気的に吸着して端子固定孔１７を閉成する。 In the normal state where the main switch 403 is turned on, each electromagnet control circuit 401 supplies the current through the built-in switches 451, 461, 471 and 481 in which the movable contact 408 is connected to the normally open fixed contact 410.
Thus, a current is supplied from the control unit 405 to the positive electrode terminal 56 of the adsorption unit 55 by applying a predetermined potential to each A / D converter 404.
At this time, by energizing the exciting coil 420 of the relay switch 407, the movable contact 421 is connected to the normally open fixed contact 422, and a ground circuit is formed at the negative terminal 57 of the suction portion 55.
Therefore, the receiving side clamping portion 53 of the battery connecting member 50 magnetically attracts the attracted portion 54 and closes the terminal fixing hole 17.

電磁石制御回路４０１は、メインスイッチ４０３がオフした際に、可動接点４０８が常開固定接点４１０から遮断するために、Ａ／Ｄコンバータ４０４への電流供給が遮断され、コントロールユニット４０５から吸着部５５の正極端子５６への電流供給が遮断する。
そのため、電池接続部材５０の被吸着部５４が受側挟持部５３から離間して端子固定孔１７を開成する。 In the electromagnet control circuit 401, when the main switch 403 is turned off, the movable contact 408 is cut off from the normally open fixed contact 410, so that the current supply to the A / D converter 404 is cut off. Current supply to the positive terminal 56 is cut off.
Therefore, the attracted portion 54 of the battery connection member 50 is separated from the receiving side clamping portion 53 to open the terminal fixing hole 17.

電池モジュール４００は、各リチウム二次電池４５０，４６０，４７０，４８０の並列部に、リレースイッチ５０７を設けており、負荷に応じてオン／オフすることにより、各リチウム二次電池４５０，４６０，４７０，４８０の個数に対応している。
電池モジュール４００は、電位差を検出だけでなく、電流を検出することにより、負荷に接続されているか否かを検出して、各リチウム二次電池４５０，４６０，４７０，４８０に接続する電池接続部材５０を吸着部５５により固定することができる。 In the battery module 400, a relay switch 507 is provided in a parallel portion of the lithium secondary batteries 450, 460, 470, and 480, and each lithium secondary battery 450, 460, This corresponds to the number of 470 and 480.
The battery module 400 detects not only a potential difference but also a current to detect whether or not the battery module 400 is connected to a load, and connects to each of the lithium secondary batteries 450, 460, 470, and 480. 50 can be fixed by the suction portion 55.

電池モジュール４００によれば、各端子４５３，４６２，４７３，４８２に確実に締結して各端子４５３，４６２，４７３，４８２からの緩みを防止できる電池接続部材５０により品質の向上を図ることができる。   According to the battery module 400, the quality can be improved by the battery connecting member 50 that can be securely fastened to the terminals 453, 462, 473, and 482 to prevent loosening from the terminals 453, 462, 473, and 482. .

次に、本発明とは異なる発明の第２例である電池接続部材について説明する。
図１４に示すように、第２例としての電池接続部材６０は、上部電池接続部６１と下部電池接続部６２とを二分割して形成している。
上部電池接続部６１は、上部本体６３の一端部に、磁性材料からなり磁気吸着手段の一部を構成する被吸着部である第１上部端子挟持部６４を有し、上部本体６３の他端部に、磁気吸着手段の他の一部を構成し、通電により磁気を発生する電磁石からなる吸着部６６を設けた第２上部端子挟持部６５を有する。
下部電池接続部６２は、下部本体６７の一端部に、磁気吸着手段の他の一部を構成し、通電により第１上部端子挟持部６４を吸着する電磁石からなる吸着部６９を設けた第１下上部端子挟持部６８を有し、下部本体６７の他端部に、磁性材料からなり磁気吸着手段の他の一部を構成する被吸着部である第２下部端子挟持部７０を有する。 Next, a battery connection member which is a second example of the invention different from the present invention will be described.
As shown in FIG. 14, a battery connection member 60 as a second example is formed by dividing an upper battery connection part 61 and a lower battery connection part 62 into two parts.
The upper battery connecting portion 61 has a first upper terminal clamping portion 64 that is an attracted portion made of a magnetic material and constituting a part of the magnetic attracting means at one end portion of the upper body 63, and the other end of the upper body 63. The part has a second upper terminal clamping part 65 provided with an adsorption part 66 that constitutes another part of the magnetic adsorption means and is made of an electromagnet that generates magnetism when energized.
The lower battery connecting part 62 is a first part in which an adsorption part 69 made of an electromagnet that constitutes another part of the magnetic adsorption means and adsorbs the first upper terminal clamping part 64 by energization is provided at one end of the lower main body 67. A lower upper terminal holding portion 68 is provided, and a second lower terminal holding portion 70 which is an attracted portion made of a magnetic material and constituting another part of the magnetic attraction means is provided at the other end of the lower main body 67.

図１５に示すように、吸着部６９に通電する通常使用時に、上部電池接続部６１の第１上部端子挟持部６４が下部電池接続部６２の第１下部端子挟持部６８の吸着部６９に磁気的に吸着して端子固定孔１７を押圧閉成する。
同時に、吸着部６６に通電する通常使用時に、上部電池接続部６１の第２上部端子挟持部６５の吸着部６６が下部電池接続部６２の第２下部端子挟持部７０を磁気的に吸着して端子固定孔１７を押圧閉成する。 As shown in FIG. 15, the first upper terminal clamping portion 64 of the upper battery connection portion 61 is magnetically applied to the adsorption portion 69 of the first lower terminal clamping portion 68 of the lower battery connection portion 62 during normal use in which the suction portion 69 is energized. Thus, the terminal fixing hole 17 is pressed and closed.
At the same time, during normal use of energizing the attracting portion 66, the attracting portion 66 of the second upper terminal sandwiching portion 65 of the upper battery connecting portion 61 magnetically attracts the second lower terminal sandwiching portion 70 of the lower battery connecting portion 62. The terminal fixing hole 17 is pressed and closed.

ここで、図１６に示すように、上部電池接続部６１の第１上部端子挟持部６４に鉤状の係合部７１を形成し、これに対向する下部電池接続部６２の第１下部端子挟持部６８の吸着部６９に、係合部７１に係合する係合部受７２を形成することもできる。
このとき、第２上部端子挟持部６５の吸着部６６および第２下部端子挟持部７０にも、同様に係合部および係合部受を形成するのが好ましい。
このようにすることにより、各吸着部６６，６９への通電を解除しても、第１上部端子挟持部６４と第１下部端子挟持部６８および第２上部端子挟持部６５と第２下部端子挟持部７０との係合状態を維持することができる。 Here, as shown in FIG. 16, a hook-like engagement portion 71 is formed in the first upper terminal holding portion 64 of the upper battery connecting portion 61, and the first lower terminal holding portion of the lower battery connecting portion 62 facing this is formed. An engaging portion receiver 72 that engages with the engaging portion 71 can also be formed on the suction portion 69 of the portion 68.
At this time, it is preferable to similarly form the engaging portion and the engaging portion support in the suction portion 66 and the second lower terminal holding portion 70 of the second upper terminal holding portion 65.
By doing in this way, even if electricity supply to each adsorption | suction part 66 and 69 is cancelled | released, the 1st upper terminal clamping part 64, the 1st lower terminal clamping part 68, the 2nd upper terminal clamping part 65, and the 2nd lower terminal The engaged state with the clamping unit 70 can be maintained.

電池接続部材６０によれば、通電により吸着部６６，６９が励磁することにより上部電池接続部６１が下部電池接続部６２に吸着して端子固定孔１７を押圧閉成し、これとは異なり、吸着部６６，６９への通電を遮断することにより端子固定孔１７を開成する。
従って、電池接続部材６０によれば、端子固定孔１７の開閉を電気的に行うことができ、端子固定孔１７の閉成時に、端子固定孔１７の緩みを確実に防止できる。 According to the battery connection member 60, the upper battery connection part 61 is attracted to the lower battery connection part 62 when the adsorption parts 66 and 69 are excited by energization, and the terminal fixing hole 17 is pressed and closed. The terminal fixing hole 17 is opened by cutting off the energization to the suction portions 66 and 69.
Therefore, according to the battery connection member 60, the terminal fixing hole 17 can be electrically opened and closed, and the terminal fixing hole 17 can be reliably prevented from loosening when the terminal fixing hole 17 is closed.

また、電池接続部材６０によれば、上部電池接続部６１の第１上部端子挟持部６４の係合部７１が下部電池接続部６２の第１下部端子挟持部６８の係合部受７２に係合する。
従って、電池接続部材６０によれば、通電が解除された際に、上部電池接続部６１と下部電池接続部６２との係合状態を維持できる。
なお、前述した図１〜図３に示す本発明に係る第１実施形態についても、本体１１の厚みを適切に設定することにより、締付手段を図１０，図１１に示すような磁気吸着手段５４，５５，６４，６６，６９，７０としてもよい。 Further, according to the battery connecting member 60, the engaging portion 71 of the first upper terminal holding portion 64 of the upper battery connecting portion 61 is engaged with the engaging portion receiver 72 of the first lower terminal holding portion 68 of the lower battery connecting portion 62. Match.
Therefore, according to the battery connecting member 60, when the energization is released, the engaged state between the upper battery connecting portion 61 and the lower battery connecting portion 62 can be maintained.
In addition, also about 1st Embodiment which concerns on this invention shown in FIGS. 1-3 mentioned above, a magnetic attraction means as shown in FIG. 10, FIG. 54, 55, 64, 66, 69, 70 may be used.

次に、本発明とは異なる発明の第３例としての電池接続部材について説明する。
図１７に示すように、第３例としての電池接続部材８０は、端子挟持部８１の端子固定孔８２の外方にねじ１３を配置しており、この端子挟持部８１に端子固定孔８２の広がりを規制するためのカバー８３を取り付けている。
カバー８３は、天板８４の端子固定孔８２に対応した位置に端子孔８５を有し、天板８４の短手方向の両端部に、下方に向けて垂下した挟持部押え板８６を接続している。 Next, a battery connection member as a third example of the invention different from the present invention will be described.
As shown in FIG. 17, the battery connection member 80 as the third example has the screw 13 disposed outside the terminal fixing hole 82 of the terminal holding portion 81, and the terminal holding hole 81 has the terminal fixing hole 82. A cover 83 for restricting the spread is attached.
The cover 83 has a terminal hole 85 at a position corresponding to the terminal fixing hole 82 of the top plate 84, and a sandwiching portion presser plate 86 hanging downward is connected to both ends of the top plate 84 in the short direction. ing.

図１８に示すように、カバー８３は、天板８４の長手方向の端部に、下方に向けて断面視Ｌ字状に垂下して端子挟持部８１の端面および下面を支持する端板８７を接続している。
電池接続部材８０は、端子挟持部８１の端子固定孔８２が各リチウム二次電池２０２，２０３の各端子２１０，２１４に電気的に接続した後に、カバー８３を端子挟持部８１に被着する。
そのため、カバー８３の挟持部押え板８６により端子挟持部８１の端子固定孔８２の広がりを阻止することにより、各リチウム二次電池２０２，２０３の各端子２１０，２１４に対する緩みを抑制できる。 As shown in FIG. 18, the cover 83 has an end plate 87 that supports the end surface and the lower surface of the terminal clamping portion 81 by hanging downward in an L shape in a cross-sectional view at the end in the longitudinal direction of the top plate 84. Connected.
The battery connection member 80 attaches the cover 83 to the terminal clamping part 81 after the terminal fixing hole 82 of the terminal clamping part 81 is electrically connected to the terminals 210 and 214 of the lithium secondary batteries 202 and 203.
Therefore, by preventing the terminal fixing hole 82 of the terminal holding portion 81 from spreading by the holding portion pressing plate 86 of the cover 83, loosening of the lithium secondary batteries 202 and 203 with respect to the terminals 210 and 214 can be suppressed.

電池接続部材８０によれば、カバー８３の挟持部押え板８６により端子挟持部８１の端子固定孔８２の広がりを規制する。
従って、電池接続部材８０によれば、各リチウム二次電池２０２，２０３の各端子２１０，２１４に対する緩みを防止できる。 According to the battery connecting member 80, the pin fixing part 82 of the cover 83 restricts the expansion of the terminal fixing hole 82 of the terminal holding part 81.
Therefore, according to the battery connection member 80, the looseness with respect to each terminal 210,214 of each lithium secondary battery 202,203 can be prevented.

（第３実施形態）
次に、本発明に係る第３実施形態の電池接続部材について説明する。
図１９に示すように、本発明に係る第３実施形態の電池接続部材９０は、板ばね材料を用いて両端部に形成した一対の端子挟持部（端子固定孔）９１と、中央部に形成した締付手段である拡張部９２とを無端状に備えている。 (Third embodiment)
Next, the battery connection member of 3rd Embodiment which concerns on this invention is demonstrated.
As shown in FIG. 19, the battery connection member 90 of the third embodiment according to the present invention is formed at a center portion with a pair of terminal clamping portions (terminal fixing holes) 91 formed at both ends using a leaf spring material. The extending portion 92 which is the tightening means is provided endlessly.

図２０に示すように、端子挟持部９１は、拡張部９２が変形しない状態において、各リチウム二次電池２０２，２０３の各端子２１０，２１４の外径寸法よりもわずかに大きい内径寸法を形成する。   As shown in FIG. 20, the terminal clamping portion 91 forms an inner diameter dimension slightly larger than the outer diameter dimensions of the terminals 210 and 214 of the lithium secondary batteries 202 and 203 in a state where the expansion section 92 is not deformed. .

図２１に示すように、拡張部９２は、その内側に拡張手段である予圧縮ばね９３を具備している。
予圧縮ばね９３は、端子挟持部９１を各リチウム二次電池２０２，２０３の各端子２１０，２１４に外挿した後に、拡張部９２を広げるように作用する。
予圧縮ばね９３が拡張部９２を広げるように作用することにより、端子挟持部９１が内径寸法を小さくするように変形して各リチウム二次電池２０２，２０３の各端子２１０，２１４に対して押圧接続できる。 As shown in FIG. 21, the expansion part 92 includes a precompression spring 93 that is an expansion means on the inside thereof.
The precompression spring 93 acts to widen the expansion portion 92 after the terminal clamping portion 91 is extrapolated to the terminals 210 and 214 of the lithium secondary batteries 202 and 203.
When the precompression spring 93 acts to widen the expansion portion 92, the terminal clamping portion 91 is deformed so as to reduce the inner diameter, and is pressed against the terminals 210 and 214 of the lithium secondary batteries 202 and 203. Can connect.

次に、拡張部９２を広げるための拡張手段の他例について説明する。
図２２に示すように、この場合、拡張部９２の内側に装着する拡張棒９４を具備している。
拡張棒９４は、端子挟持部９１を各リチウム二次電池２０２，２０３の各端子２１０，２１４に外挿した後に、拡張部９２に装着する。
拡張棒９４が装着することにより拡張部９２を広げ、それにより、端子挟持部９１が内径寸法を小さくするように変形して各リチウム二次電池２０２，２０３の各端子２１０，２１４を強固に締め付ける。 Next, another example of the expansion unit for expanding the expansion unit 92 will be described.
As shown in FIG. 22, in this case, an expansion rod 94 to be mounted inside the expansion portion 92 is provided.
The expansion rod 94 is attached to the expansion portion 92 after the terminal holding portion 91 is extrapolated to the terminals 210 and 214 of the lithium secondary batteries 202 and 203.
When the expansion rod 94 is attached, the expansion portion 92 is expanded, whereby the terminal clamping portion 91 is deformed so as to reduce the inner diameter, and the terminals 210 and 214 of the lithium secondary batteries 202 and 203 are firmly tightened. .

続いて、拡張部９２を広げるための拡張手段の他例について説明する。
図２３に示すように、この場合、拡張部９２の外側に非接触に配置する一対の吸着部９５を具備している。
吸着部９５には、端子挟持部９１を各リチウム二次電池２０２，２０３の各端子２１０，２１４に外挿した後に、電流を供給する。
吸着部９５は、電流の供給により拡張部９２を広げ、それにより、端子挟持部９１が内径寸法を小さくするように変形して各リチウム二次電池２０２，２０３の各端子２１０，２１４を強固に締め付ける。 Next, another example of the expansion unit for expanding the expansion unit 92 will be described.
As shown in FIG. 23, in this case, a pair of adsorbing portions 95 arranged in a non-contact manner is provided outside the expansion portion 92.
An electric current is supplied to the adsorption unit 95 after the terminal clamping unit 91 is extrapolated to the terminals 210 and 214 of the lithium secondary batteries 202 and 203.
The adsorbing part 95 expands the expansion part 92 by supplying electric current, whereby the terminal clamping part 91 is deformed so as to reduce the inner diameter dimension, and the terminals 210 and 214 of the lithium secondary batteries 202 and 203 are strengthened. tighten.

第３実施形態の電池接続部材９０によれば、各リチウム二次電池２０２，２０３の各端子２１０，２１４に外挿した端子挟持部９１を、拡張手段９３，９４，９５により、内径寸法を小さくするように変形する。
従って、電池接続部材９０によれば、拡張手段９３，９４，９５により、端子挟持部９１が内径寸法を小さくするように変形して各リチウム二次電池２０２，２０３の各端子２１０，２１４に対して緩むことなく強固に締め付けできる。 According to the battery connecting member 90 of the third embodiment, the terminal holding portion 91 that is externally attached to the terminals 210 and 214 of the lithium secondary batteries 202 and 203 is reduced in size by the expansion means 93, 94, and 95. Deform to
Therefore, according to the battery connection member 90, the expansion means 93, 94, 95 deform the terminal holding portion 91 so as to reduce the inner diameter dimension, and the terminals 210, 214 of the lithium secondary batteries 202, 203 are deformed. It can be tightened firmly without loosening.

なお、本発明の電池接続部材及び電池モジュールは、前述した各実施形態に限定するものでなく、適宜な変形や改良等が可能である。   In addition, the battery connection member and battery module of this invention are not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.

１０，２０，３０，４０，９０ 電池接続部材
１１，２１，３１，４１ 本体
１２，２２，３２，４２，９１ 端子挟持部
１３ ねじ（締付手段）（螺合緊締手段）
１５ 変形部
１６Ａ，２４Ａ ねじ挿通孔（締付手段）（螺合緊締手段）
１６Ｂ，２４Ｂ ねじ込み孔（締付手段）（螺合緊締手段）
１７，４３ 端子固定孔
３３， カバー
４４ ロッド（端子固定孔形成手段）（締付手段）（螺合緊締手段）
４５ ナット部材（端子固定孔形成手段）（締付手段）（螺合緊締手段）
９２ 拡張部（締付手段）
２００，３００，４００ 電池モジュール
２０２，２０３，３１１，３１４，４５０，４６０，４７０，４８０ リチウム二次電池（電池）
２１０，３１２，３１５，４５２，４６２，４７２，４８２ 正極端子(端子)
２１４，３１３，３１７，４５３，４６３，４７３，４８３ 負極端子(端子) 10, 20, 30, 40, 90 Battery connection member 11, 21, 31, 41 Main body 12, 22, 32, 42, 91 Terminal clamping portion 13 Screw (tightening means) (screw tightening means)
15 Deformed portion 16A, 24A Screw insertion hole (tightening means) (screwing tightening means)
16B, 24B Screw holes (tightening means) (screw tightening means)
17, 43 Terminal fixing hole 33, cover 44 Rod (terminal fixing hole forming means) (tightening means) (screwing tightening means)
45 Nut member (terminal fixing hole forming means) (tightening means) (screw tightening means)
92 Expansion part (tightening means)
200, 300, 400 Battery module 202, 203, 311, 314, 450, 460, 470, 480 Lithium secondary battery (battery)
210, 312, 315, 452, 462, 472, 482 Positive terminal (terminal)
214, 313, 317, 453, 463, 473, 483 Negative terminal (terminal)

Claims (7)

電池同士の端子間を接続する電池接続部材であって、
前記端子を挟持する端子挟持部と、
前記端子間に接続された状態で前記電池同士の間に設けられ、前記端子挟持部を挟持する方向に締め付ける締付手段と、を備える電池接続部材。 A battery connecting member for connecting terminals between batteries,
A terminal clamping part for clamping the terminal;
A battery connecting member, comprising: a fastening means that is provided between the batteries in a state of being connected between the terminals and fastens in a direction to sandwich the terminal sandwiching portion. 両端部に、前記端子挟持部を有する本体を備え、
前記本体が、前記端子挟持部より厚みが大とされるとともに、前記締付手段が、前記本体に設けられた螺合緊締手段である請求項１に記載の電池接続部材。 A body having the terminal clamping portion is provided at both ends,
2. The battery connection member according to claim 1, wherein the main body has a thickness larger than that of the terminal clamping portion, and the fastening means is a screw tightening means provided in the main body. 前記本体が、前記端子挟持部に有する端子固定孔に連通して変形する変形部を備えている請求項２に記載の電池接続部材。   The battery connecting member according to claim 2, wherein the main body includes a deforming portion that is deformed in communication with a terminal fixing hole provided in the terminal holding portion. 前記端子挟持部に、前記端子固定孔の広がりを規制するカバーを装着している請求項３に記載の電池接続部材。   The battery connecting member according to claim 3, wherein a cover for restricting the expansion of the terminal fixing hole is attached to the terminal clamping portion. 進退移動により前記端子挟持部に端子固定孔を形成する端子固定孔形成手段を備えている請求項１に記載の電池接続部材。   The battery connecting member according to claim 1, further comprising terminal fixing hole forming means for forming a terminal fixing hole in the terminal holding portion by advancing and retreating. 前記締付手段が、磁気吸着手段である請求項１に記載の電池接続部材。   The battery connection member according to claim 1, wherein the fastening means is a magnetic adsorption means. 請求項１ないし請求項６のうちのいずれか１項に記載の電池接続部材を具備する電池モジュール。   The battery module which comprises the battery connection member of any one of Claims 1 thru | or 6.

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